CN115138006B - Lifting rope locking device for safety belt - Google Patents

Abstract

The invention relates to the field of safety facilities of construction sites, and particularly discloses a lifting rope locking device for a safety belt. The movable rack type power transmission device comprises a main board and an auxiliary board which are hinged together, wherein a fixed rack is arranged on the main board, and a movable rack is arranged opposite to the fixed rack; a pulling plate is hinged to the main plate through a hinge shaft, one end of the pulling plate, which is hinged to the hinge shaft, is an eccentric circular plate, and a pull ring is arranged at the end part of the pulling plate; the main board is provided with a main guide hole taking the hinge shaft as a circle center, a guide rod is arranged on the main guide hole, and one end of the guide rod, which is back to the main guide hole, is provided with a circular plug; the auxiliary plate is provided with an auxiliary guide hole, after the main plate and the auxiliary plate are combined together, the main guide hole is superposed with the auxiliary guide hole, and the upper end of the auxiliary guide hole is in an arc shape capable of allowing the circular plug to pass through; when the pull ring reaches the lowest end of the main pilot hole, the position point of the eccentric circular plate farthest from the hinge shaft is not higher than the height of the hinge shaft. When the invention is used, the invention can be prevented from sliding downwards, and meanwhile, a constructor is prevented from falling.

Description

Translated fromChinese

一种安全带用吊绳锁定装置Locking device for a sling for a safety belt

技术领域technical field

本发明涉及建筑工地安全设施领域，特别涉及一种安全带用吊绳锁定装置。The invention relates to the field of construction site safety facilities, in particular to a sling locking device for a safety belt.

背景技术Background technique

目前，各大城市高楼高耸林立，高楼的外墙清洁成为一种需要，“蜘蛛人”应运而生，“蜘蛛人”作用是在安全带的保护下，通过吊绳悬挂在空中对外墙进行清洁护理，极具危险性，因此这些“蜘蛛人”的安全保障就非常重要。目前的安全带仍然存在各种安全隐患，亟需改进。At present, there are many high-rise buildings in major cities, and the cleaning of the exterior walls of high-rise buildings has become a need. "Spiderman" came into being. The function of "Spiderman" is to clean the exterior walls by hanging in the air under the protection of seat belts. Nursing is extremely dangerous, so the safety of these "spidermen" is very important. There are still various potential safety hazards in the current safety belt, which needs to be improved urgently.

发明内容Contents of the invention

本发明为了弥补现有技术的缺陷，提供了一种更加安全的安全带用吊绳锁定装置。In order to make up for the defects of the prior art, the present invention provides a safer safety belt sling locking device.

本发明是通过如下技术方案实现的：The present invention is achieved through the following technical solutions:

一种安全带用吊绳锁定装置，其特征是，包括主安全装置，所述主安全装置包括铰接在一起的主板和副板，所述主板上设有固定齿条，所述固定齿条对面设有活动齿条；在主板上通过铰轴铰接有拉板，所述拉板与铰轴铰接的一端为偏心圆板，所述拉板端部设有拉环；所述主板上开有以铰轴为圆心的主导向孔，所述主导向孔上设有导向杆，所述导向杆的背向主导向孔的一端设有圆形堵头；所述副板上设有副导向孔，主板与副板合到一起后，主导向孔与副导向孔重合，所述副导向孔的上端为能容圆形堵头通过的圆弧形；当拉环到达主导向孔的最下端时，偏心圆板的离铰轴最远的位置点不高于铰轴的高度。A sling locking device for a safety belt, characterized in that it includes a main safety device, the main safety device includes a main board and a sub-board hinged together, the main board is provided with a fixed rack, and the fixed rack is opposite to the A movable rack is provided; a draw plate is hinged on the main board through a hinge shaft, and one end of the draw plate hinged with the hinge shaft is an eccentric circular plate, and a pull ring is provided at the end of the draw plate; The hinge shaft is the main guide hole in the center of the circle, the main guide hole is provided with a guide rod, and the end of the guide rod facing away from the main guide hole is provided with a circular plug; the sub-plate is provided with a secondary guide hole, After the main board and the auxiliary board are put together, the main guide hole coincides with the auxiliary guide hole, and the upper end of the auxiliary guide hole is in the shape of a circular arc that can accommodate the circular plug; when the pull ring reaches the lowermost end of the main guide hole, The point farthest from the hinge axis of the eccentric circular plate is not higher than the height of the hinge axis.

还包括与主安全装置相同的副安全装置，所述副安全装置位于主安全装置上方；所述主安全装置和所述副安全装置之间通过连接件连接，所述主安全装置和所述副安全装置之间的距离能够任意调节。It also includes the same auxiliary safety device as the main safety device, and the auxiliary safety device is located above the main safety device; the main safety device and the auxiliary safety device are connected through a connecting piece, and the main safety device and the auxiliary safety device The distance between the safety devices can be adjusted arbitrarily.

所述连接件为铁链。The connector is an iron chain.

所述连接件为两个钥匙扣，两个钥匙扣分别铰接在主安全装置的主板的上端和副安全装置的主板的下端。The connecting parts are two key chains, and the two key chains are respectively hinged on the upper end of the main board of the main safety device and the lower end of the main board of the auxiliary safety device.

所述主板和副板之间设有锁定结构，具体为：在副板上固设有固定钩，在主板上设有弹性钩，所述固定钩和弹性钩的端面均为斜面。A locking structure is provided between the main board and the sub-board, specifically: a fixed hook is fixed on the sub-board, and an elastic hook is provided on the main board, and the end faces of the fixed hook and the elastic hook are inclined.

在主板上开有镂空孔，镂空孔处安装固定轴，固定轴上套有扭力弹簧，所述扭力弹簧一端固定在主板上，一端固定在弹性钩上；所述弹性钩的与倾斜面相对的一端设有折弯段，所述折弯段从主板背面伸出。There is a hollow hole on the main board, and a fixed shaft is installed at the hollow hole, and a torsion spring is set on the fixed shaft. One end of the torsion spring is fixed on the main board, and the other end is fixed on the elastic hook; the elastic hook is opposite to the inclined surface. One end is provided with a bending section, and the bending section protrudes from the back of the main board.

所述主板上开有两条长条形孔，所述活动齿条背面固设有两块滑块，每块所述滑块位于其对应的长条形孔内。Two strip-shaped holes are opened on the main board, and two sliders are fixedly arranged on the back of the movable rack, and each slider is located in its corresponding strip-shaped hole.

所述主板背面固设有两根回位弹簧，两根回位弹簧的自由端分别固定在一块滑块上。Two return springs are fixedly arranged on the back of the main board, and the free ends of the two return springs are respectively fixed on a slider.

所述主板上设有橡胶垫圈。The main board is provided with a rubber washer.

本发明的有益效果是：The beneficial effects of the present invention are:

本发明在使用时需要两根吊绳，一根用于承重施工工人，另一根用于安装本发明：将这根吊绳穿过固定齿条和活动齿条之间的空隙，合上副板，固定钩和弹性钩钩在一起将主板和副板固定在一起，同时，导向杆上的圆形堵头穿过副导向孔上端的圆弧，随着拉板围绕铰轴的转动，导向杆穿过副导向孔，而偏心圆板的最远端向活动齿条处转动，并逐渐将活动齿条推向固定齿条，从而将吊绳夹紧，一旦另一根吊绳出现故障，拉板在安全绳的牵拉作用下转动，活动齿条将吊绳越夹越紧，从未可以防止本发明向下滑动，同时阻止施工者坠落。The present invention needs two slings when in use, one is used for load-bearing construction workers, and the other is used for installing the present invention: pass this sling through the gap between the fixed rack and the movable rack, close the pair plate, the fixed hook and the elastic hook hook together to fix the main plate and the auxiliary plate together. At the same time, the circular plug on the guide rod passes through the arc at the upper end of the auxiliary guide hole. As the pull plate rotates around the hinge axis, the guide The rod passes through the auxiliary guide hole, and the farthest end of the eccentric circular plate turns to the movable rack, and gradually pushes the movable rack to the fixed rack, thereby clamping the lifting rope. Once the other lifting rope fails, Pull plate rotates under the traction effect of safety rope, and movable tooth rack clamps suspension rope tighter and tighter, never can prevent the present invention from sliding downwards, and prevent the builder from falling simultaneously.

如果使用主安全装置和副安全装置，将安全带先系在主安全装置的拉板上，然后再系在副安全装置的拉板上，这时的主安全装置和副安全装置之间的连接件是松散的，一旦主安全装置失灵，两根拉板之间的安全带马上被拉紧，此时的连接件仍然是松散的，也就是说副安全装置在起主要作用，从而防止施工者坠落，起到双保险的作用。If the main safety device and auxiliary safety device are used, the seat belt should be tied to the pull plate of the main safety device first, and then tied to the pull plate of the auxiliary safety device. At this time, the connection between the main safety device and the auxiliary safety device The parts are loose. Once the main safety device fails, the safety belt between the two pull plates will be tightened immediately. At this time, the connection parts are still loose, that is to say, the secondary safety device is playing the main role, thus preventing the builder from Fall, play the role of double insurance.

附图说明Description of drawings

下面结合附图对本发明作进一步的说明：Below in conjunction with accompanying drawing, the present invention will be further described:

图1为本发明主安全装置或副安全装置的主视结构示意图；Fig. 1 is a schematic diagram of the front view of the main safety device or auxiliary safety device of the present invention;

图2为本发明主安全装置或副安全装置的后视结构示意图；Fig. 2 is a rear view structural schematic diagram of the main safety device or the auxiliary safety device of the present invention;

图3为本发明的打开后的结构示意图；Fig. 3 is the structure diagram after opening of the present invention;

图4为图3中A-A向的截面结构示意图。Fig. 4 is a schematic cross-sectional structure diagram along A-A in Fig. 3 .

图中，1主安全装置，2副安全装置，3连接件，4主板，5副板，6铰链，7固定齿条，8活动齿条，9滑块，10长条形孔，11回位弹簧，12橡胶垫圈，13镂空孔，14固定轴，15扭力弹簧，16弹性钩，17折弯段，18固定钩，19倾斜面，20铰轴，21偏心圆板，22拉板，23导向杆，24主导向孔，25圆形堵头，26副导向孔，27圆弧形，28拉环。In the figure, 1 main safety device, 2 secondary safety devices, 3 connectors, 4 main board, 5 sub boards, 6 hinge, 7 fixed rack, 8 movable rack, 9 slider, 10 long hole, 11 back position Spring, 12 rubber washer, 13 hollow hole, 14 fixed shaft, 15 torsion spring, 16 elastic hook, 17 bending section, 18 fixed hook, 19 inclined surface, 20 hinge shaft, 21 eccentric circular plate, 22 pull plate, 23 guide Rod, 24 main guide holes, 25 circular plugs, 26 secondary guide holes, 27 circular arcs, 28 pull rings.

具体实施方式Detailed ways

附图为本发明的具体实施例。如图1至图4所示，该种安全带用吊绳锁定装置，包括主安全装置1和副安全装置2，主安全装置1和副安全装置2结构相同，二者之间通过连接件3连接，连接件3可以是铁链子、绳子或者两个钥匙扣等，只要能使两个安装装置松散地连接到一起就行；使用时副安全装置2在上，主安全装置1在下。Accompanying drawing is the specific embodiment of the present invention. As shown in Figures 1 to 4, this kind of safety belt sling locking device includes a main safety device 1 and a secondary safety device 2. Connect, connector 3 can be iron chain, rope or two key chains etc., as long as can make two mounting devices be connected together loosely; During use, auxiliary safety device 2 is on top, and main safety device 1 is on the bottom.

主安全装置1和副主安全装置1都包括：主板4和副板5，主板4和副板5的一侧通过铰链6铰接在一起，连接件3的一端固定在副安全装置2的主板4的下端，一端固定在主安全装置1的主板4的上端；在主板4上靠近铰链6的地方固定安装一块上下方向的固定齿条7，固定齿条7的牙背对铰链6，在固定齿条7下半部分的对面有一块活动齿条8，活动齿条8的牙面向固定齿条7，活动齿条8的背面有两块滑块9，相应于滑块9的滑动轨迹的地方的主板4上开一条长条形孔10，滑块9位于长条形孔10内，起到滑块9的导航作用，使其做直线运动，为了方便活动齿条8回弹，在主板4背面固定安装两根回位弹簧11，一块滑块9配套一根回位弹簧11，回位弹簧11的一端固定在主板4背面，一端固定在滑块9上。Both the main safety device 1 and the sub-main safety device 1 include: a main board 4 and a sub-board 5, one side of the main board 4 and the sub-board 5 are hinged together by a hinge 6, and one end of the connecting piece 3 is fixed on the main board 4 of the sub-safety device 2 One end is fixed on the upper end of the main board 4 of the main safety device 1; a fixed rack 7 in the up and down direction is fixedly installed on the main board 4 near the hinge 6, and the tooth back of the fixed rack 7 faces the hinge 6. There is a movable rack 8 on the opposite side of the lower part of the bar 7, the teeth of the movable rack 8 face the fixed rack 7, and there are two sliders 9 on the back side of the movable rack 8, corresponding to the sliding track of the slider 9. Astrip hole 10 is opened on the mainboard 4, and the slider 9 is located in thestrip hole 10, which plays a navigation role for the slider 9 and makes it move in a straight line. Tworeturn springs 11 are fixedly installed, a slide block 9 is matched with areturn spring 11, and one end of thereturn spring 11 is fixed on the back side of the mainboard 4, and one end is fixed on the slide block 9.

在活动齿条8的上方安装一个橡胶垫圈12，橡胶垫圈12、固定齿条7和活动齿条8的厚度是一样的。Arubber washer 12 is installed above the movable rack 8, and the thicknesses of therubber washer 12, the fixed rack 7 and the movable rack 8 are the same.

在活动齿条8和橡胶垫圈12之间的主板4上有一个镂空孔13，镂空孔13处安装一根固定轴14，固定轴14上套一根扭力弹簧15和一根弹性钩16，扭力弹簧15的一端固定在主板4上，一端固定在弹性钩16上，通过按压弹性钩16使扭力弹簧15产生变形，从而带动弹性钩16活动，弹性钩16主体部分位于主板4正面，弹性钩16还有一个折弯段17位于主板4背面，通过折弯段17也能使扭力弹簧15发生变形。弹性钩上有两个环分别套在固定轴的两端，扭力弹簧位于两个环之间。There is ahollow hole 13 on the main board 4 between the movable rack 8 and therubber washer 12, afixed shaft 14 is installed at thehollow hole 13, atorsion spring 15 and anelastic hook 16 are set on thefixed shaft 14, and the torsion force One end of thespring 15 is fixed on the main board 4, and one end is fixed on theelastic hook 16. By pressing theelastic hook 16, thetorsion spring 15 is deformed, thereby driving theelastic hook 16 to move. There is also abending section 17 located at the back of the main board 4 , and thetorsion spring 15 can also be deformed through thebending section 17 . Two rings are arranged on the elastic hook to be sleeved on the two ends of the fixed shaft respectively, and the torsion spring is located between the two rings.

在副板5上固定安装一个固定钩18，固定钩18和弹性钩16的端面都是倾斜面19，两个倾斜面19的倾斜方向和角度是一致的，固定钩18的倾斜面19按压弹性钩16的倾斜面19，可以使扭力弹簧15产生变形，带动弹性钩16转动，当固定钩18的倾斜面19越过弹性钩16的倾斜面19，弹性钩16回弹，固定钩18和弹性钩16相互钩在一起，从而将主板4和副板5固定到一起。Afixed hook 18 is fixedly installed on the sub-board 5, and the end faces of thefixed hook 18 and theelastic hook 16 are allinclined surfaces 19, and the inclined direction and angle of the twoinclined surfaces 19 are consistent, and theinclined surface 19 of thefixed hook 18 presses the elastic Theinclined surface 19 of thehook 16 can deform thetorsion spring 15 and drive theelastic hook 16 to rotate. When theinclined surface 19 of thefixed hook 18 crosses theinclined surface 19 of theelastic hook 16, theelastic hook 16 rebounds, and the fixedhook 18 and theelastic hook 16 are hooked together, thereby fixing the main board 4 and the sub-board 5 together.

在活动齿条8旁边通过铰轴20铰接一块偏心圆板21，偏心圆板21与一块拉板22一体制成，通过转动拉板22可以推动活动齿条8向固定齿条7靠近，拉板22上横穿一根导向杆23，在主板4上开一个以铰轴20为圆心的主导向孔24，拉板22背面的导向杆23位于主导向孔24内，拉板22正面的导向杆23的端部为圆形堵头25，在副板5上开一个副导向孔26，副导向孔26上端为能容圆形通过的圆弧形27，主板4和副板5合到一起后，主导向孔24与副导向孔26重合，转动拉板22后，导向杆23在主导向孔24和副导向孔26内滑行，圆形堵头25也起到主板4和副板5的固定作用，拉板22的自由端为一个拉环28，用于系安全带；由于铰轴20有凸点，因此在副板5对应的地方开一个小孔，将铰轴20的凸点露出来。Next to the movable rack 8, an eccentric circular plate 21 is hinged by ahinge shaft 20. The eccentric circular plate 21 is integrally made with apull plate 22. By rotating thepull plate 22, the movable rack 8 can be pushed towards the fixed rack 7, and thepull plate 22 across a guide rod 23, open amain guide hole 24 with thehinge shaft 20 as the center of circle on the main board 4, the guide rod 23 on the back side of thepull plate 22 is located in themain guide hole 24, the guide rod on the front of thepull plate 22 The end of 23 is acircular plug 25, and asecondary guide hole 26 is opened on the secondary plate 5. The upper end of thesecondary pilot hole 26 is an arc-shaped 27 that can accommodate a circular passage. After the main plate 4 and the secondary plate 5 are combined , themain guide hole 24 coincides with theauxiliary guide hole 26, after thepull plate 22 is rotated, the guide rod 23 slides in themain guide hole 24 and theauxiliary guide hole 26, and thecircular plug 25 also plays a role in fixing the main board 4 and the auxiliary board 5 Function, the free end of thepull plate 22 is apull ring 28, which is used to fasten the safety belt; since thehinge shaft 20 has a convex point, a small hole is opened at the corresponding place of the sub-plate 5 to expose the convex point of thehinge shaft 20 .

使用时，即使拉板22的导向杆23触碰到主导向孔24的最下端不能转动时，偏心圆板21离铰轴20的最远点的位置也不高于铰轴20的高度，这样可以保证偏心圆板21起到最大作用，牢固夹紧吊绳。During use, even if the guide rod 23 of thepull plate 22 touches the lowermost end of themain guide hole 24 and cannot rotate, the position of the farthest point of the eccentric circular plate 21 from thehinge shaft 20 is not higher than the height of thehinge shaft 20, so that It can be ensured that the eccentric circular plate 21 plays a maximum role and firmly clamps the suspension rope.

铰接在一起的主板4和副板5，所述主板4上设有固定齿条7，所述齿条对面设有活动齿条8；在主板4上通过铰轴20铰接有拉板22，所述拉板22与铰轴20铰接的一端为偏心圆板21，所述拉板22端部设有拉环28；所述主板4上开有以铰轴20为圆心的主导向孔24，所述主导向孔24上设有导向杆23，所述导向杆23的背向主导向孔24的一端设有圆形堵头25；所述副板5上设有副导向孔26，主板4与副板5合到一起后，主导向孔24与副导向孔26重合，所述副导向孔26的上端为能容圆形堵头25通过的圆弧形27；当拉环28到达主导向孔24的最下端时，偏心圆板21的离铰轴20最远的位置点不高于铰轴20的高度。The main board 4 and the sub-board 5 hinged together, the main board 4 is provided with a fixed rack 7, and the opposite side of the rack is provided with a movable rack 8; the main board 4 is hinged with apull plate 22 through ahinge shaft 20, so The hinged end of thepull plate 22 and thehinge shaft 20 is an eccentric circular plate 21, and the end of thepull plate 22 is provided with apull ring 28; the main plate 4 has amain guide hole 24 with thehinge shaft 20 as the center of the circle, so Themain guide hole 24 is provided with a guide rod 23, and the end of the guide rod 23 facing away from themain guide hole 24 is provided with acircular plug 25; After the sub-plates 5 are put together, themain guide hole 24 coincides with thesecondary guide hole 26, and the upper end of thesecondary guide hole 26 is acircular arc 27 that can accommodate thecircular plug 25; when thepull ring 28 reaches themain guide hole 24, the position point farthest from thehinge axis 20 of the eccentric circular plate 21 is not higher than the height of thehinge axis 20.

使用过程如下：将安全带先系在主安全装置1的拉板22的拉环28上，然后再系在副安全装置2的拉板22的拉环28上，一定要系紧，两个拉环28之间的安全带的长度小于连接件3的最大长度；The use process is as follows: tie the seat belt on thepull ring 28 of thepull plate 22 of the main safety device 1 first, and then tie it on thepull ring 28 of thepull plate 22 of the auxiliary safety device 2, and be sure to fasten it tightly. The length of the safety belt between theloops 28 is less than the maximum length of the connector 3;

将吊绳依次穿过副安全装置2和主安全装置1的固定齿条7和活动齿条8之间的空隙，也是橡胶垫圈12和固定齿条7之间的空隙，副安全装置2在上，主安全装置1在下，然后合上副板5，固定钩18推动弹性钩16转动，然后相互钩在一起，圆形堵头25从副导向孔26的圆弧形27部分穿过，转动拉板22，导向杆23顺着主导向孔24和副导向孔26向下转动，偏心圆板21转动将活动齿条8推向固定齿条7，从而将吊绳初步夹紧。使用过程中一旦遇到危险，施工者坠落过程中施工者身上的安全带被扯紧，带动拉板22进一步转动将活动齿条8推至极点，吊绳被紧紧夹住，从而保护了施工者的安全。坠落过程中如果主安全装置1由于受力等原因失去功能，那么这是副安全装置2就起作用了，两个拉环28之间的安全带被扯紧，副安全装置2上的固定齿条7和活动齿条8也将吊绳夹紧，从而保证了施工者的安全，起到了双保险的作用。Pass the lifting rope through the gap between the fixed rack 7 and the movable rack 8 of the auxiliary safety device 2 and the main safety device 1 in turn, which is also the gap between therubber gasket 12 and the fixed rack 7, and the auxiliary safety device 2 is on top , the main safety device 1 is at the bottom, then close the auxiliary plate 5, thefixed hook 18 pushes theelastic hook 16 to rotate, and then hooks together, thecircular plug 25 passes through the arc-shaped 27 part of theauxiliary guide hole 26, and the rotation pullsPlate 22, guide bar 23 rotates downwards alongmain guide hole 24 andauxiliary guide hole 26, and eccentric circular plate 21 rotates and pushes movable rack 8 to fixed rack 7, thereby the suspension rope is preliminarily clamped. Once danger is encountered during use, the safety belt on the builder's body is tightened during the fall of the builder, which drives thepull plate 22 to further rotate and push the movable rack 8 to the extreme, and the sling is tightly clamped, thus protecting the construction. safety of the victim. If the main safety device 1 loses its function due to stress and other reasons during the fall, then the auxiliary safety device 2 will work, the safety belt between the two pull rings 28 will be tightened, and the fixed teeth on the auxiliary safety device 2 will Bar 7 and movable rack 8 also clamp the suspension rope, thereby ensuring the safety of the builder and playing the effect of double insurance.

除说明书所述技术特征外，其余技术特征均为本领域技术人员已知技术。Except for the technical features described in the description, the rest of the technical features are known to those skilled in the art.

Claims (8)

Translated fromChinese

1.一种安全带用吊绳锁定装置，其特征是，包括主安全装置（1），所述主安全装置（1）包括铰接在一起的主板（4）和副板（5），所述主板（4）上设有固定齿条（7），所述固定齿条（7）对面设有活动齿条（8）；在主板（4）上通过铰轴（20）铰接有拉板（22），所述拉板（22）与铰轴（20）铰接的一端为偏心圆板（21），所述拉板（22）端部设有拉环（28）；所述主板（4）上开有以铰轴（20）为圆心的主导向孔（24），所述主导向孔（24）上设有导向杆（23），所述导向杆（23）的背向主导向孔（24）的一端设有圆形堵头（25）；所述副板（5）上设有副导向孔（26），主板（4）与副板（5）合到一起后，主导向孔（24）与副导向孔（26）重合，所述副导向孔（26）的上端为能容圆形堵头（25）通过的圆弧形（27）；当拉环（28）到达主导向孔（24）的最下端时，偏心圆板（21）的离铰轴（20）最远的位置点不高于铰轴（20）的高度；还包括与主安全装置（1）相同的副安全装置（2），所述副安全装置（2）位于主安全装置（1）上方；所述主安全装置（1）和所述副安全装置（2）之间通过连接件（3）连接，所述主安全装置（1）和所述副安全装置（2）之间的距离能够任意调节。1. A sling locking device for a safety belt, characterized in that it includes a main safety device (1), and the main safety device (1) includes a main board (4) and a sub-board (5) hinged together, the The main board (4) is provided with a fixed rack (7), and the opposite side of the fixed rack (7) is provided with a movable rack (8); a pull plate (22) is hinged on the main board (4) through a hinge shaft (20). ), the hinged end of the pull plate (22) and the hinge shaft (20) is an eccentric circular plate (21), and the end of the pull plate (22) is provided with a pull ring (28); on the main board (4) There is a main guide hole (24) with the hinge shaft (20) as the center of the circle, and a guide rod (23) is provided on the main guide hole (24), and the back of the guide rod (23) faces the main guide hole (24) ) is provided with a circular plug (25); the auxiliary plate (5) is provided with an auxiliary guide hole (26), and after the main plate (4) and the auxiliary plate (5) are combined, the main guide hole (24 ) coincides with the auxiliary guide hole (26), and the upper end of the auxiliary guide hole (26) is a circular arc (27) that can accommodate the circular plug (25); when the pull ring (28) reaches the main guide hole ( 24), the farthest point of the eccentric circular plate (21) from the hinge axis (20) is not higher than the height of the hinge axis (20); it also includes the same auxiliary safety device as the main safety device (1) (2), the auxiliary safety device (2) is located above the main safety device (1); the main safety device (1) and the auxiliary safety device (2) are connected through a connecting piece (3), the The distance between the main safety device (1) and the auxiliary safety device (2) can be adjusted arbitrarily.2.根据权利要求1所述的安全带用吊绳锁定装置，其特征是，所述连接件（3）为铁链。2. The safety belt sling locking device according to claim 1, characterized in that, the connecting piece (3) is an iron chain.3.根据权利要求1所述的安全带用吊绳锁定装置，其特征是，所述连接件（3）为两个钥匙扣，两个钥匙扣分别铰接在主安全装置（1）的主板（4）的上端和副安全装置（2）的主板（4）的下端。3. The sling locking device for safety belts according to claim 1, characterized in that the connector (3) is two key chains, and the two key chains are respectively hinged on the main board ( 4) and the lower end of the main board (4) of the secondary safety device (2).4.根据权利要求1至3任一项所述的安全带用吊绳锁定装置，其特征是，所述主板（4）和副板（5）之间设有锁定结构，具体为：在副板（5）上固设有固定钩（18），在主板（4）上设有弹性钩（16），所述固定钩（18）和弹性钩（16）的端面均为斜面。4. The safety belt sling locking device according to any one of claims 1 to 3, characterized in that a locking structure is provided between the main board (4) and the sub-board (5), specifically: in the sub-board A fixed hook (18) is fixed on the board (5), and an elastic hook (16) is arranged on the main board (4). The end surfaces of the fixed hook (18) and the elastic hook (16) are both sloped.5.根据权利要求4所述的安全带用吊绳锁定装置，其特征是，在主板（4）上开有镂空孔（13），镂空孔（13）处安装固定轴（14），固定轴（14）上套有扭力弹簧（15），所述扭力弹簧（15）一端固定在主板（4）上，一端固定在弹性钩（16）上；所述弹性钩（16）的与倾斜面（19）相对的一端设有折弯段（17），所述折弯段（17）从主板（4）背面伸出。5. The sling locking device for safety belts according to claim 4, characterized in that, a hollow hole (13) is opened on the main board (4), and a fixed shaft (14) is installed at the hollow hole (13), and the fixed shaft (14) is covered with a torsion spring (15), one end of the torsion spring (15) is fixed on the main board (4), and the other end is fixed on the elastic hook (16); the elastic hook (16) and the inclined surface ( 19) The opposite end is provided with a bending section (17), and the bending section (17) protrudes from the back of the main board (4).6.根据权利要求1至3任一项所述的安全带用吊绳锁定装置，其特征是，所述主板（4）上开有两条长条形孔（10），所述活动齿条（8）背面固设有两块滑块（9），每块所述滑块（9）位于其对应的长条形孔（10）内。6. The sling locking device for seat belts according to any one of claims 1 to 3, characterized in that two strip-shaped holes (10) are opened on the main board (4), and the movable rack (8) Two sliders (9) are fixed on the back, and each slider (9) is located in its corresponding elongated hole (10).7.根据权利要求6所述的安全带用吊绳锁定装置，其特征是，所述主板（4）背面固设有两根回位弹簧（11），两根回位弹簧（11）的自由端分别固定在一块滑块（9）上。7. The safety belt sling locking device according to claim 6, characterized in that two return springs (11) are fixed on the back of the main board (4), and the two return springs (11) are free The ends are respectively fixed on a slide block (9).8.根据权利要求1至3任一项所述的安全带用吊绳锁定装置，其特征是，所述主板（4）上固设有橡胶垫圈（12）。8. The safety belt sling locking device according to any one of claims 1 to 3, characterized in that a rubber washer (12) is fixed on the main board (4).

Images