CN102328142A - Device for locking door of soldering furnace - Google Patents

Abstract

The invention relates to a device for locking a door of a soldering furnace. The device comprises a clamping arm which is hinged on a furnace body, wherein one end of the clamping arm is connected with a cylinder hinged on the furnace body, and the other end of the clamping arm is provided with a clamping head matched with the door. In the invention, the cylinder is used for automatically driving the clamping arm to rotate to open and close the door; and the locking device has a simple structure and high locking performance, is convenient to operate, is safe and reliable and can be applied to certain special environments such as an environment at a relatively high temperature or an environment in which a relatively large-sized furnace body is operated at a relatively high position and the like.

Description

Soldering oven fire door locking device

Technical field

The present invention relates to soldering oven, specifically a kind of soldering oven fire door locking device.

Background technology

In commercial production, can use a large amount of closure containers, like the various bodies of heater in the vacuum brazing.Therefore part body of heater need design bigger fire door so that handling operation for it because of equipment such as needs loading and unloading large-scale components.When fire door is in closed state, because of arts demand must be locked fire door, when having pressure gap for some furnace pressures and atmospheric pressure or the airtight body of heater of needs particularly like this.

Existing fire door locking device generally adopts mechanical locking device, like the cramp frame locking device.This locking device need carry out the manual locking operation, and this operates very inconvenience under some particular surroundings, even can bring some potential safety hazards, operation like temperature on the higher or big type of furnace or the like.

Summary of the invention

The present invention is directed to the problems referred to above, a kind of soldering oven fire door locking device is provided, this locking device adopts operation automatically, convenient, safety.

According to technical scheme of the present invention: a kind of soldering oven fire door locking device, comprise the clamp arm that is hinged on the body of heater, an end of said clamp arm links to each other with cylinder on being hinged on said body of heater, and its other end is provided with the clamping head that matches with fire door.

The bolt that has been threaded on the said clamping head, the tail end of said bolt matches with said fire door.

Said bolt thread is connected with nut.

Said clamp arm is a V-arrangement, and its turning point is hinged on through bearing pin and clamps on the bearing, and said clamping bearing is fixed on the said body of heater.

Said cylinder is hinged on the cylinder block, and said cylinder block is fixed on the said body of heater.

Technique effect of the present invention is: the present invention drives clamp arm automatically through cylinder and rotates the switching that realizes fire door, and simple in structure, easy to operate, safe and reliable, locking property is good.

Description of drawings

Fig. 1 is a structural representation of the present invention.

The specific embodiment

Be further described below in conjunction with the accompanying drawing specific embodiments of the invention.

Among Fig. 1, comprise cylinder block 1, cylinder 2, clamp bearing 3, bearing pin 4, plain cushion 5, clamp arm 6,bolt 7,nut 8, clamping head 9, fire door 10, body ofheater 11 etc.

As shown in Figure 1, the present invention is a kind of soldering oven fire door locking device, comprises clamp arm 6 and cylinder 2.Cylinder 2 also can adopt oil cylinder to replace.

Clamp arm 6 is a V-arrangement, and its turning point is hinged on through bearing pin 4 and clamps on the bearing 3, clamps bearing 3 and is fixed on the body of heater 11.The plain cushion 5 of corrective action also has been installed on the bearing pin 4.

Cylinder 2 is hinged on the cylinder block 1, and cylinder block 1 is fixed on the body ofheater 11.

One end of clamp arm 6 links to each other with the piston rod of cylinder 2 through bearing pin, and its other end is provided with the clamping head 9 that matches with fire door 10.

Thebolt 7 that also has been threaded on the clamping head 9, the tail end ofbolt 7 matches with fire door 10, plays regulating action.Thenut 8 that also has been threaded on thebolt 7 playsclamping screw 7.

Operation principle of the present invention is: through to the pneumatic work of charging and discharging of cylinder 2, realize the elongation of cylinder 2 piston rods and shrink two states that cylinder 2 piston rods drive clamp arm 6 and realize clamping and the action of unclamping fire door 10.

The present invention drives clamp arm 6 automatically through cylinder 2 and rotates the switching that realizes fire door 10, and simple in structure, easy to operate, safe and reliable, locking property is good, and the operation that can be applicable on the higher or more large-scale body of heater high height of temperature waits some particular surroundings.

Claims (5)

1. soldering oven fire door locking device; It is characterized in that: comprise the clamp arm (6) that is hinged on the body of heater (11); One end of said clamp arm (6) links to each other with cylinder (2) on being hinged on said body of heater (11), and its other end is provided with the clamping head (9) that matches with fire door (10).

2. according to the described soldering oven fire door of claim 1 locking device, it is characterized in that: the bolt (7) that has been threaded on the said clamping head (9), the tail end of said bolt (7) matches with said fire door (10).

3. according to the described soldering oven fire door of claim 2 locking device, it is characterized in that: said bolt (7) nut (8) that has been threaded.

4. according to the described soldering oven fire door of claim 1 locking device, it is characterized in that: said clamp arm (6) is a V-arrangement, and its turning point is hinged on through bearing pin (4) and clamps on the bearing (3), and said clamping bearing (3) is fixed on the said body of heater (11).

5. according to the described soldering oven fire door of claim 1 locking device, it is characterized in that: said cylinder (2) is hinged on the cylinder block (1), and said cylinder block (1) is fixed on the said body of heater (11).

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