技术领域technical field
本发明涉及建筑器械领域，尤其涉及一种建筑施工用钻井下管装置。The invention relates to the field of construction equipment, in particular to a drilling and running device for construction.
背景技术Background technique
在建筑工程领域，钻井是利用机械设备或人力从地面将地层钻成孔眼的工作。通常指勘探或开发石油、天然气等液态和气态矿产而钻凿井眼及大直径供水井的工程。In the field of construction engineering, drilling is the work of using mechanical equipment or manpower to drill the formation into holes from the ground. Usually refers to the exploration or development of liquid and gaseous minerals such as oil and natural gas to drill boreholes and large-diameter water supply wells.
在钻井作业后期，需要将井管下放到钻好的井口中，目的是防止井内塌方，井管起到护壁的作用。在井的深度较深时，一般需多节井管依次下放在井口内，然后同心落放在一起构成一个相通的井管。但是井管多为圆柱状的空心管，在下管操作时，机械设备难以将其夹住。In the later stage of the drilling operation, the well pipe needs to be lowered into the drilled wellhead, the purpose is to prevent the well from collapsing, and the well pipe plays the role of protecting the wall. When the depth of the well is deep, generally multi-section well pipes are lowered in the well head successively, and then concentrically dropped together to form a connected well pipe. However, the well pipes are mostly cylindrical hollow pipes, which are difficult to be clamped by mechanical equipment when the pipe is lowered.
发明内容Contents of the invention
本发明为了克服现有技术中的不足，提供了一种建筑施工用钻井下管装置，本发明应用于钻井作业中下管操作，便于依次将井管落放在钻好的井口中。In order to overcome the deficiencies in the prior art, the present invention provides a drilling pipe running device for building construction. The present invention is applied to the pipe running operation in the drilling operation, and is convenient for sequentially dropping the well pipes into the drilled wellhead.
本发明是通过以下技术方案实现：The present invention is realized through the following technical solutions:
一种建筑施工用钻井下管装置，所述钻井下管装置包括吊架、空心管、活动臂、绞杆、定位滑套；A drilling and running device for building construction, the drilling and running device includes a hanger, a hollow pipe, a movable arm, a twisted rod, and a positioning sliding sleeve;
所述空心管与吊架垂直安装，所述活动臂上端与吊架铰接连接，活动臂与吊架铰接处设置有弹簧；The hollow tube is vertically installed with the hanger, the upper end of the movable arm is hingedly connected with the hanger, and a spring is arranged at the hinge of the movable arm and the hanger;
所述活动臂下端安装有“7”字板，所述“7”字板包括斜板和托板，所述斜板向下倾斜；所述绞杆一端与斜板铰接连接，绞杆另一端与定位滑套铰接连接，所述定位滑套套装在空心管外侧；The lower end of the movable arm is equipped with a "7"-shaped plate, and the "7"-shaped plate includes a slanted plate and a supporting plate, and the slanted plate is inclined downward; It is hingedly connected with the positioning sliding sleeve, and the positioning sliding sleeve is sleeved on the outside of the hollow tube;
在所述空心管管壁开设有舌孔，所述舌孔中安装有定位装置，所述定位装置包括定位舌，所述空心管内设置有解锁触杆，所述解锁触杆上设置有触环，所述解锁触杆顶端设置有拉耳。A tongue hole is opened on the wall of the hollow tube, and a positioning device is installed in the tongue hole, and the positioning device includes a positioning tongue. An unlocking handle is arranged in the hollow tube, and a contact ring is arranged on the unlocking handle. , the top of the unlocking contact rod is provided with a pulling ear.
所述钻井下管装置装配有自动解锁机构，所述自动解锁机构包括触板、解锁杆A、解锁杆B，所述解锁杆A套装在活动臂内，解锁杆B一端与解锁杆A铰接，解锁杆B另一端与解锁触杆铰接；所述解锁杆A下端穿过斜板，解锁杆A下端与触板铰接连接。The drilling device is equipped with an automatic unlocking mechanism, which includes a touch plate, an unlocking lever A, and an unlocking lever B. The unlocking lever A is set in the movable arm, and one end of the unlocking lever B is hinged to the unlocking lever A. The other end of the unlocking lever B is hinged with the unlocking touch lever; the lower end of the unlocking lever A passes through the inclined plate, and the lower end of the unlocking lever A is hingedly connected with the touch panel.
所述解锁杆A与斜板之间设置有弹簧，在弹簧弹力作用下，触板的下端与斜板下端靠拢。A spring is arranged between the unlocking lever A and the swash plate, and under the force of the spring, the lower end of the contact plate is close to the lower end of the swash plate.
所述托板下方安装有滚轴，滚轴从托板上表面露出。A roller is installed below the supporting plate, and the roller is exposed from the upper surface of the supporting plate.
与现有的技术相比，本发明的有益效果是：本发明的一种建筑施工用钻井下管装置，该装置在活动臂的下端设置有“7”字板，其托板从井管下放将井管托起，从而将井管下放在井口中；Compared with the existing technology, the beneficial effect of the present invention is: a drilling device for building construction of the present invention, the device is provided with a "7"-shaped plate at the lower end of the movable arm, and the supporting plate is lowered from the well pipe Hold up the well pipe so that the well pipe is lowered into the wellhead;
本发明下放井管时，当接近下方的井管时，待下放的井管可自动卸管，方便投放，便于收回下管装置；同时下放的井管之间同心度较高，解决井管之间偏移的问题。When the well pipe is lowered in the present invention, when it is close to the lower well pipe, the well pipe to be lowered can be unloaded automatically, which is convenient for putting in and taking back the pipe lowering device; at the same time, the concentricity of the lowered well pipes is relatively high, which solves the problem of the well pipe. The problem of offset.
附图说明Description of drawings
图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2为本发明的工作状态时的结构示意图，图中上井管未脱钩；Fig. 2 is a schematic structural view of the working state of the present invention, in which the upper well pipe is not decoupled;
图3为本发明的工作状态时的结构示意图，图中上井管已脱钩；Fig. 3 is a schematic structural view of the working state of the present invention, in which the upper well pipe has been decoupled;
图4为本发明的定位滑套与空心管之间的结构示意图，图中定位舌为锁止状态；Fig. 4 is a schematic diagram of the structure between the positioning sliding sleeve and the hollow pipe of the present invention, in which the positioning tongue is in a locked state;
图5为本发明的定位滑套与空心管之间的结构示意图，图中定位舌为解锁状态；Fig. 5 is a schematic diagram of the structure between the positioning sliding sleeve and the hollow pipe of the present invention, in which the positioning tongue is in an unlocked state;
图6为本发明的“7”字板工作时的局部放大图；Fig. 6 is the partial enlarged view when " 7 " word plate of the present invention works;
图7为本发明的定位装置的结构示意图；7 is a schematic structural view of the positioning device of the present invention;
图8为本发明的结构示意图，图中本发明设置有自动解锁机构。Fig. 8 is a schematic structural diagram of the present invention, in which the present invention is provided with an automatic unlocking mechanism.
图中：1、吊架；101、铰接柱；102、连杆；103、挂耳；In the figure: 1, hanger; 101, hinged column; 102, connecting rod; 103, hanging lug;
2、空心管；201、侧孔；202、舌孔；2. Hollow tube; 201, side hole; 202, tongue hole;
3、活动臂；3. Movable arm;
4、“7”字板；401、斜板；402、托板；403、滚轴；4. "7" character plate; 401, inclined plate; 402, supporting plate; 403, roller;
5、绞杆；5. Twist rod;
6、自动解锁机构；601、触板；602、解锁杆A；603、解锁杆B；6. Automatic unlocking mechanism; 601, touch panel; 602, unlocking lever A; 603, unlocking lever B;
7、定位滑套；7. Positioning sliding sleeve;
8、定位装置；801、定位舌；8011、定位舌A端；8012、定位舌B端；802、转轴；803、扭簧；804、限位柱；805、安装框；8. Positioning device; 801, positioning tongue; 8011, positioning tongue A end; 8012, positioning tongue B end; 802, rotating shaft; 803, torsion spring; 804, limit post; 805, installation frame;
9、解锁触杆；901、触环；902、拉簧；903、拉耳；9. Unlocking touch rod; 901, touch ring; 902, extension spring; 903, pull ear;
10、上井管；11、下井管。10. Upper well pipe; 11. Lower well pipe.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
在建筑施工、石油开采、矿藏开采等工程场合，常因工程需要在工地钻挖一定深度的井。由于地质材料的原因，钻好的井需要再井中放置井管，以防止井内塌方。由于井的深度较深，一般井管多采用一定规格的多节井管依次拼凑而成。井管多数为钢制管或水泥管，井管的内壁和外壁都是光滑的，无任何可供起吊设备固定的地方。现有技术条件下，一般采用软绳从井管外侧缠绕在井管上，或采取从井管内侧撑住井管，利用摩擦力将井管吊起。这些吊装方法或装置在起吊过程中极易出现井管脱落的风险。采用从井管内侧撑住井管的装置也易将水泥井管撑坏。In engineering occasions such as building construction, oil exploitation, ore mining, it is often necessary to drill a well of a certain depth on the construction site due to engineering needs. Due to the geological material, the drilled well needs to be placed with well pipes in the well to prevent landslides in the well. Due to the deep depth of the well, the general well pipes are usually pieced together by multi-section well pipes of certain specifications. Most of the well pipes are steel pipes or cement pipes. The inner and outer walls of the well pipes are smooth, and there is no place for lifting equipment to fix. Under the existing technical conditions, generally adopt flexible rope to be wound on the well pipe from the outside of the well pipe, or adopt to prop up the well pipe from the inside of the well pipe, and utilize the frictional force to lift the well pipe. These hoisting methods or devices are very prone to the risk of well pipe falling off during the hoisting process. Adopting the device that supports the well pipe from the inside of the well pipe also easily breaks the cement well pipe.
为解决现有技术条件下技术问题，如图1所示，本发明提供了一种建筑施工用钻井下管装置，所述钻井下管装置包括吊架1、空心管2、活动臂3、绞杆5、定位滑套7；吊架1为圆环状，如图2所示，在吊架1上方设置了与吊架1通过连杆102连接的挂耳103。In order to solve the technical problems under the existing technical conditions, as shown in Fig. 1, the present invention provides a drilling and running device for building construction, which includes a hanger 1, a hollow pipe 2, a movable arm 3, a twisted Rod 5, positioning sliding sleeve 7; hanger 1 is circular, as shown in FIG.
所述空心管2与吊架1垂直安装，所述活动臂3上端与吊架1铰接连接，活动臂3上端与吊架1上的铰接柱101连接，活动臂3可在吊架1的半径上摆动，在活动臂3与吊架1铰接处设置有弹簧；在弹簧的弹力作用下，活动臂3有向外侧展开的趋势。Described hollow tube 2 is vertically installed with hanger 1, and described movable arm 3 upper ends are hingedly connected with hanger 1, and movable arm 3 upper ends are connected with hinge column 101 on the hanger 1, and movable arm 3 can be within the radius of hanger 1. Upward swing, a spring is arranged at the joint between the movable arm 3 and the hanger 1; under the elastic force of the spring, the movable arm 3 has a tendency to expand outward.
如图2所示，在吊装井管时，将本发明从上井管10的下端穿入上井管10，然后通过挂耳103将本装置挂在起吊设备上，便于吊起井管并将其放入井口中。As shown in Fig. 2, when hoisting the well pipe, the present invention is penetrated into the upper well pipe 10 from the lower end of the upper well pipe 10, and then the device is hung on the lifting equipment through the hanging lug 103, so as to facilitate the hoisting of the well pipe and put it down. into the wellhead.
为实现将井管吊起，如图1、图2、图6所示，在活动臂3下端安装有“7”字板4，所述“7”字板4包括斜板401和托板402，托板402向外设置，从上井管10下方将上井管10托起，配合活动臂3向外侧展开的趋势，使得上井管10不容易滑脱，可顺利将上井管10吊起。In order to realize the hoisting of the well pipe, as shown in Fig. 1, Fig. 2 and Fig. 6, a "7"-shaped plate 4 is installed at the lower end of the movable arm 3, and the "7"-shaped plate 4 includes a sloping plate 401 and a supporting plate 402 , the supporting plate 402 is arranged outwards, and the upper well pipe 10 is held up from the bottom of the upper well pipe 10, and the trend of cooperating with the movable arm 3 to the outside makes the upper well pipe 10 not easy to slip off, and the upper well pipe 10 can be lifted smoothly.
如图1、图2、图3、图6所示，“7”字板4的斜板401设置为斜板401向下倾斜；多个活动臂3上的斜板401均向下倾斜，一同朝向空心管2。如此设置，其目的在于：在下放上井管10至斜板401与下井管11的上口接触时，当继续下放上井管10，由于上井管10的重力压在托板402上，重力作用下的斜板401会沿管口向下井管11内侧滑移，同时克服活动臂3向外侧展开的趋势，使得多个活动臂3同时向中间收拢。在收拢的过程中，上井管10下端与托板402的接触面越来越小，直至下井管11从托板402上脱落，摞放在下井管11上，然后将本装置从上井管10中吊出即可。既实现了将上井管10摞放在下井管11上，也实现了将上井管10从本装置上脱钩。As shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 6, the inclined plate 401 of the "7" character plate 4 is set so that the inclined plate 401 is inclined downward; Towards the hollow tube 2. The purpose of such setting is: when the upper well pipe 10 is lowered until the inclined plate 401 contacts the upper opening of the lower well pipe 11, when the upper well pipe 10 is continued to be lowered, due to the gravity of the upper well pipe 10 pressing on the supporting plate 402, the weight of the upper well pipe 10 will be pressed against the supporting plate 402, and the weight of the upper well pipe 10 will be pressed against the supporting plate 402. The swash plate 401 will slide down the inner side of the well pipe 11 along the nozzle, and at the same time overcome the tendency of the movable arms 3 to expand outward, so that multiple movable arms 3 are folded toward the middle at the same time. In the process of gathering, the contact surface between the lower end of the upper well pipe 10 and the supporting plate 402 becomes smaller and smaller until the lower well pipe 11 falls off from the supporting plate 402 and is stacked on the lower well pipe 11, and then the device is removed from the upper well pipe 10 Just hang it out. Not only realized that the upper well pipe 10 is stacked on the lower well pipe 11, but also realized that the upper well pipe 10 is decoupled from the device.
同时，由于多个活动臂3上的斜板401位于同一圆锥面上，在下降上井管10过程中，多个斜板401共同配合，具有将上井管10与下井管11的轴线对齐的作用，从而下管后井管之间的同心度较高，避免了井管之间偏移。At the same time, since the inclined plates 401 on the plurality of movable arms 3 are located on the same conical surface, during the process of lowering the upper well pipe 10, the plurality of inclined plates 401 work together to align the axes of the upper well pipe 10 and the lower well pipe 11, Therefore, the concentricity between the well pipes after running the pipes is high, and the deviation between the well pipes is avoided.
在起吊上井管10时，为进一步避免上井管10从本装置上脱落的风险。本装置还装配了一套防脱锁止机构。如图1、图3、图2所示，所述绞杆5一端与斜板401铰接连接，绞杆5另一端与定位滑套7铰接连接，所述定位滑套7套装在空心管2外侧；随着活动臂3的展开、收拢，定位滑套7在空心管2上可向下、向上移动。当上井管10的重力作用在托板402上时，定位滑套7有沿空心管2向上的趋势。因此，在空心管2上位于定位滑套7上方设置有定位装置8。When hoisting the upper well pipe 10, in order to further avoid the risk that the upper well pipe 10 falls off from the device. This device is also equipped with a set of anti-off locking mechanism. As shown in Figures 1, 3 and 2, one end of the twisted rod 5 is hingedly connected to the swash plate 401, and the other end of the twisted rod 5 is hingedly connected to the positioning sliding sleeve 7, and the positioning sliding sleeve 7 is set on the outside of the hollow tube 2. ; With the expansion and contraction of the movable arm 3, the positioning sliding sleeve 7 can move downward and upward on the hollow tube 2. When the gravity of the upper well pipe 10 acts on the supporting plate 402 , the positioning sliding sleeve 7 has a tendency to go upward along the hollow pipe 2 . Therefore, a positioning device 8 is arranged on the hollow tube 2 above the positioning sliding sleeve 7 .
如图4所示，在所述空心管2管壁开设有舌孔202，所述舌孔202中安装有定位装置8。如图7所示，所述定位装置8包括定位舌801，还包括安装框805、扭簧803、转轴802，定位舌801通过转轴802安装在安装框805上。扭簧803配合限位柱804后，在其扭力作用下定位舌A端8011在空心管2上向外伸出，阻止定位滑套7从下向上移动。As shown in FIG. 4 , a tongue hole 202 is opened on the wall of the hollow tube 2 , and a positioning device 8 is installed in the tongue hole 202 . As shown in FIG. 7 , the positioning device 8 includes a positioning tongue 801 , and also includes a mounting frame 805 , a torsion spring 803 , and a rotating shaft 802 . The positioning tongue 801 is mounted on the mounting frame 805 through the rotating shaft 802 . After the torsion spring 803 cooperates with the limit column 804, the positioning tongue A end 8011 protrudes outward on the hollow tube 2 under the action of its torsion force, preventing the positioning sliding sleeve 7 from moving upward.
如图4、图5所示，同时在空心管2内设置有解锁触杆9，所述解锁触杆9上设置有触环901，所述解锁触杆9顶端设置有拉耳903。拉耳903上连接拉绳，当需要解锁定位舌801对定位滑套7的锁止时，通过拉绳向上拉解锁触杆9。使得触环901拨动定位舌801的定位舌B端8012，将定位舌801向上拨动，使其翻转至定位舌A端8011缩回空心管2，从而解除对定位滑套7的锁止。为便于解锁触杆9回位，解锁触杆9下端与空心管2下端通过拉簧902连接，拉簧902的拉力便于其复位。As shown in FIG. 4 and FIG. 5 , at the same time, an unlocking feeler rod 9 is provided inside the hollow tube 2 , a contact ring 901 is arranged on the unlocking feeler rod 9 , and a pull ear 903 is arranged at the top of the unlocking feeler rod 9 . A pull rope is connected to the pull ear 903 , and when the locking of the positioning tongue 801 to the positioning sliding sleeve 7 needs to be unlocked, the unlocking touch rod 9 is pulled upward by the pull rope. Make the touch ring 901 move the positioning tongue B end 8012 of the positioning tongue 801, and move the positioning tongue 801 upwards to make it turn over until the positioning tongue A end 8011 retracts the hollow tube 2, thereby releasing the locking of the positioning sliding sleeve 7. In order to return to the position of the unlocking contact rod 9, the lower end of the unlocking contact rod 9 is connected with the lower end of the hollow tube 2 through an extension spring 902, and the tension of the extension spring 902 is convenient for its reset.
为进一步方便解锁定位舌801对定位滑套7的锁止，本发明的钻井下管装置装配有自动解锁机构6，如图6、图2、图8所示，所述自动解锁机构6包括触板601、解锁杆A602、解锁杆B603，同时在活动臂3以及空心管2上开设有侧孔201。所述解锁杆A602套装在活动臂3内，解锁杆B603一端与解锁杆A602铰接，解锁杆B603另一端与解锁触杆9铰接；所述解锁杆A602下端穿过斜板401，解锁杆A602下端与触板601铰接连接，触板601设置在斜板401外侧，触板601与斜板401之间隔有距离。如图6、图2所示，在下放上井管10时，该自动解锁结构6的触板601先于斜板401与下井管11的上口接触，在上井管10继续下降过程中，推动触板601向斜板401拢，从而推动解锁杆A602，解锁杆A602联动解锁杆B603，解锁杆B603联动解锁触杆9，将解锁触杆9向上顶，从而使得触环901拨动定位舌801。实现了当上井管10下降至下井管11上口时，自动解锁定位舌801对定位滑套7的锁止，无需通过拉绳拉动解锁触杆9解锁。In order to further facilitate the locking of the positioning tongue 801 on the positioning sliding sleeve 7, the drilling device of the present invention is equipped with an automatic unlocking mechanism 6, as shown in Fig. 6, Fig. 2 and Fig. 8, the automatic unlocking mechanism 6 includes a trigger Plate 601 , unlocking lever A602 , unlocking lever B603 , and side holes 201 are opened on movable arm 3 and hollow tube 2 . The unlocking lever A602 is set in the movable arm 3, one end of the unlocking lever B603 is hinged with the unlocking lever A602, and the other end of the unlocking lever B603 is hinged with the unlocking contact lever 9; the lower end of the unlocking lever A602 passes through the inclined plate 401, and the lower end of the unlocking lever A602 It is hingedly connected with the touch plate 601 , and the touch plate 601 is arranged on the outside of the inclined plate 401 , and there is a distance between the touch plate 601 and the inclined plate 401 . As shown in Fig. 6 and Fig. 2, when the upper well pipe 10 is lowered, the contact plate 601 of the automatic unlocking structure 6 contacts the upper opening of the lower well pipe 11 before the slant plate 401, and pushes the contact plate 601 during the continuous descent of the upper well pipe 10. The plate 601 moves toward the inclined plate 401 to push the unlocking lever A602. The unlocking lever A602 is linked with the unlocking lever B603, and the unlocking lever B603 is linked with the unlocking lever 9 to push the unlocking lever 9 upward, so that the touch ring 901 moves the positioning tongue 801. Realized that when the upper well pipe 10 descends to the upper mouth of the lower well pipe 11, the locking of the positioning tongue 801 to the positioning sliding sleeve 7 is automatically unlocked, without the need to pull the unlocking contact rod 9 to unlock through the pull cord.
同时，在所述解锁杆A602与斜板401之间设置有弹簧，在弹簧弹力作用下，触板601的下端与斜板401下端靠拢。如此设置是便于将上井管10与下井管11同心装配。At the same time, a spring is provided between the unlocking lever A602 and the swash plate 401 , and under the force of the spring, the lower end of the contact plate 601 is close to the lower end of the swash plate 401 . Such arrangement is convenient for concentric assembly of the upper well pipe 10 and the lower well pipe 11 .
如图1、图6所示，在所述托板402下方安装有滚轴403，滚轴403从托板402上表面露出。如此设置，是为了便于在脱钩时，上井管10从托板402上脱离。As shown in FIG. 1 and FIG. 6 , a roller 403 is installed under the supporting plate 402 , and the roller 403 is exposed from the upper surface of the supporting plate 402 . Such setting is to facilitate the detachment of the upper well pipe 10 from the supporting plate 402 when decoupling.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582811.XACN110284838B (en) | 2019-07-01 | 2019-07-01 | Drilling pipe lowering device for building construction |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582811.XACN110284838B (en) | 2019-07-01 | 2019-07-01 | Drilling pipe lowering device for building construction |
| Publication Number | Publication Date |
|---|---|
| CN110284838Atrue CN110284838A (en) | 2019-09-27 |
| CN110284838B CN110284838B (en) | 2021-04-06 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910582811.XAExpired - Fee RelatedCN110284838B (en) | 2019-07-01 | 2019-07-01 | Drilling pipe lowering device for building construction |
| Country | Link |
|---|---|
| CN (1) | CN110284838B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820779A (en)* | 2019-11-20 | 2020-02-21 | 中国建筑第八工程局有限公司 | Well pipe lowering device and construction method thereof |
| CN113187381A (en)* | 2021-03-19 | 2021-07-30 | 中基发展建设工程有限责任公司 | High-water-length spiral well forming construction process |
| CN115163007A (en)* | 2022-07-15 | 2022-10-11 | 黄河勘测规划设计研究院有限公司 | Integrated well wall repairing device and well wall water permeation repairing method |
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| CN110820779A (en)* | 2019-11-20 | 2020-02-21 | 中国建筑第八工程局有限公司 | Well pipe lowering device and construction method thereof |
| CN113187381A (en)* | 2021-03-19 | 2021-07-30 | 中基发展建设工程有限责任公司 | High-water-length spiral well forming construction process |
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| TA01 | Transfer of patent application right | Effective date of registration:20210111 Address after:Room 2202, 22 / F, Wantong building, No. 3002, Sungang East Road, Sungang street, Luohu District, Shenzhen City, Guangdong Province Applicant after:SHENZHEN LOTUT INNOVATION DESIGN Co.,Ltd. Address before:231440 Jintian Jiayuan, Jinwang Road South, Jinshen Town, Tongcheng, Anqing, Anhui, China, 38 Applicant before:TONGCHENG PAITENG MACHINERY DESIGN Co.,Ltd. | |
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| TA01 | Transfer of patent application right | Effective date of registration:20210129 Address after:239300 No.518 Tianye Road, Tianchang City, Chuzhou City, Anhui Province Applicant after:ANHUI YUJIA CONSTRUCTION GROUP Co.,Ltd. Address before:Room 2202, 22 / F, Wantong building, No. 3002, Sungang East Road, Sungang street, Luohu District, Shenzhen City, Guangdong Province Applicant before:SHENZHEN LOTUT INNOVATION DESIGN Co.,Ltd. | |
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| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20210406 |