Box airtight clamping device

Abstract

The utility model discloses a box airtight clamping device which comprises a connecting rod, a first clamping arm is arranged at one end of the connecting rod, and a second clamping arm is arranged at the other end of the connecting rod. The first blocking structure is arranged on the inner side of the free end of the first clamping arm; the second plugging structure is arranged on the inner side of the free end of the second clamping arm; and an elastic structure. During detection, an operator acts on the push-and-pull part through the driving part so as to drive the first plugging structure to move towards one end close to the second plugging structure, and the to-be-detected automobile box body is clamped by using the inward acting force between the first plugging structure and the second plugging structure, so that the purpose of plugging the orifices at the two ends of the automobile box body is achieved; after air tightness detection of the automobile box body is completed, an operator acts on the push-pull part through the driving part, and then the first plugging structure is driven to move towards one end far away from the second plugging structure; the air tightness detection device is simple in structure, convenient to operate and beneficial to improving the working efficiency of the air tightness detection step.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection tools for automobile boxes, and particularly relates to an air tightness clamp for a box body. Background Art

[0002] During the automobile processing, the air tightness of the automobile box needs to be checked, and it is required to meet the requirement of no leakage or defect during use, that is, when adding oil or water into the inner cavity of the automobile box, leakage or water leakage will not occur due to holes in the box wall or poor contact of the welding method.

[0003] For this reason, an air tightness clamp for a box body is proposed. Content of the Utility Model

[0004] In order to overcome the disadvantages and deficiencies in the prior art, the purpose of the utility model is to provide an air tightness clamp for a box body.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] An air tightness clamp for a box body, comprising:

[0007] A connecting rod, with a first clamping arm at one end and a second clamping arm at the other end;

[0008] A first sealing structure, arranged on the inner side of the free end of the first clamping arm;

[0009] A second sealing structure, arranged on the inner side of the free end of the second clamping arm;

[0010] A tightening and loosening structure, including a pushing and pulling part and a driving part, the first sealing structure is slidably connected with the first clamping arm through the pushing and pulling part, and the driving part can act on the pushing and pulling part and drive the first sealing structure to move towards or away from one end of the second sealing structure.

[0011] Preferably, the first sealing structure includes:

[0012] A first cushion block, fixedly connected with the pushing and pulling part, and inwardly protruding with a first limiting part;

[0013] A first plug, coaxially sleeved on the first limiting part, and capable of sealing the orifice of the box body;

[0014] The second sealing structure includes:

[0015] A second cushion block, fixedly connected with the second clamping arm, and inwardly protruding with a second limiting part;

[0016] A second plug, coaxially sleeved on the second limiting part, and capable of sealing the orifice of the box body.

[0017] Preferably, the tensioning structure is a quick clamp, and also includes a clamp seat fixed to the free end of the first clamping arm, the push-pull portion is a driven rod coaxially penetrated through the clamp seat, the first pad is fixed to the inner end of the driven rod, and the driving portion is a driving handle arranged at the outer end of the driven rod; when the first plug and the second plug are sealed at the two end openings of the box body, the quick clamp can continuously provide a clamping force to maintain closure.

[0018] Preferably, the first plug includes a coaxially arranged first sealing cover and a first sealing end, the first sealing cover is provided with a first limiting opening on a side away from the first sealing end, and the first limiting portion is matched with the first limiting opening; the second plug includes a coaxially arranged second sealing cover and a second sealing end, the second sealing cover is provided with a second limiting opening on a side away from the second sealing end, and the second limiting portion is matched with the second limiting opening.

[0019] Preferably, the axial thickness of the first blocking end is greater than the axial thickness of the second blocking end.

[0020] Preferably, it also includes:

[0021] An adjusting screw is arranged at one end of the connecting rod close to the first clamping arm, and the first clamping arm is provided with a first through hole for the adjusting screw to pass through;

[0022] a pair of adjusting nuts, threadably engaged with the adjusting screw, acting on the first clamping arm;

[0023] A fixing screw is arranged at one end of the connecting rod close to the second clamping arm, and the second clamping arm is provided with a second through hole for the fixing screw to pass through;

[0024] A fixing nut is threadably matched with the fixing screw and acts on the second clamping arm.

[0025] Preferably, the connecting rod comprises an upper rod body and a lower rod body of the same structure, wherein the axes of the upper rod body and the lower rod body are parallel to each other; and further comprises a connecting block, wherein the connecting block is arranged between the upper rod body and the lower rod body and enables a gap to be left therebetween.

[0026] Preferably, the upper rod body and the lower rod body are fixedly connected to the connecting block by welding respectively.

[0027] Preferably, the first plug and the second plug are both made of PU.

[0028] Preferably, the hardness of the urethane foam is between 80 and 90 Shore A.

[0029] The beneficial effects of the present utility model are as follows: During detection, an operator acts on the push-pull part through the driving part, and then drives the first sealing structure to move towards one end close to the second sealing structure, and uses the inward acting force between the first sealing structure and the second sealing structure to clamp the automobile box body to be detected, so as to achieve the purpose of sealing the orifices at both ends of the automobile box body; after the airtightness detection of the automobile box body is completed, the operator acts on the push-pull part through the driving part, and then drives the first sealing structure to move towards the end far away from the second sealing structure; the structure of the present utility model is simple and the operation is convenient, which is beneficial to improving the working efficiency of the airtightness detection step. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of an embodiment in the present utility model;

[0031] Figure 2 is Figure 1 a longitudinal sectional schematic diagram of;

[0032] Figure 3 is a schematic use diagram of an embodiment in the present utility model;

[0033] Figure 4 is Figure 3 a longitudinal sectional schematic diagram of.

[0034] As shown in the figure:

[0035] 1 - connecting rod, 11 - first clamping arm, 12 - second clamping arm, 13 - adjusting screw, 14 - adjusting nut, 15 - fixing screw, 16 - fixing nut, 17 - connecting block;

[0036] 2 - first sealing structure, 21 - first cushion block, 211 - first limiting part, 22 - first plug, 221 - first sealing cover, 222 - first sealing end, 223 - first limiting port;

[0037] 3 - second sealing structure, 31 - second cushion block, 311 - second limiting part, 32 - second plug, 321 - second sealing cover, 322 - second sealing end, 323 - second limiting port;

[0038] 4 - tightening and loosening structure, 41 - driven rod, 42 - driving handle, 43 - pliers seat;

[0039] 5 - box body, 51 - orifice. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The following combines the drawings to specifically clarify the implementation manner of the present utility model. The drawings are only for reference and illustration, and do not constitute a limitation to the patent protection scope of the present utility model.

[0041] Please refer to Figures 1-4, in this embodiment, a box airtightness clamp includes:

[0042] A connecting rod 1, with a first clamping arm 11 at one end and a second clamping arm 12 at the other end;

[0043] A first sealing structure 2, provided on the inner side of the free end of the first clamping arm 11;

[0044] A second sealing structure 3, provided on the inner side of the free end of the second clamping arm 12;

[0045] A tightening and loosening structure 4, including a pushing and pulling part and a driving part. The first sealing structure 2 is slidably connected to the first clamping arm 11 through the pushing and pulling part, and the driving part can act on the pushing and pulling part and drive the first sealing structure 2 to move towards or away from one end of the second sealing structure 3.

[0046] Preferably, the first sealing structure 2 includes:

[0047] A first cushion block 21, fixedly connected to the pushing and pulling part, and inwardly convex with a first limiting part 211;

[0048] A first plug 22, coaxially sleeved on the first limiting part 211, capable of sealing the orifice 51 of the box body 5;

[0049] The second sealing structure 3 includes:

[0050] A second cushion block 31, fixedly connected to the second clamping arm 12, and inwardly convex with a second limiting part 311;

[0051] A second plug 32, coaxially sleeved on the second limiting part 311, capable of sealing the orifice 51 of the box body 5.

[0052] Preferably, the tightening and loosening structure 4 is a quick clamp, and further includes a clamp seat 43 fixed to the free end of the first clamping arm 11. The pushing and pulling part is a driven rod 41 coaxially passing through the clamp seat 43. The first cushion block 21 is fixed to the inner end of the driven rod 41, and the driving part is a driving handle 42 provided at the outer end of the driven rod 41; when the first plug 22 and the second plug 32 seal the two ends orifices 51 of the box body 5, the quick clamp can continuously provide a clamping force to maintain the closure.

[0053] Preferably, the first plug 22 includes a coaxially arranged first sealing cover 221 and a first sealing end 222, the first sealing cover 221 is provided with a first limiting opening 223 on the side away from the first sealing end 222, and the first limiting portion 211 is adapted to the first limiting opening 223; the second plug 32 includes a coaxially arranged second sealing cover 321 and a second sealing end 322, the second sealing cover 321 is provided with a second limiting opening 323 on the side away from the second sealing end 322, and the second limiting portion 311 is adapted to the second limiting opening 323.

[0054] In this embodiment, the first limiting portion 211 is a circular columnar body coaxially convexly arranged on the inner side of the first cushion block 21, the first limiting opening 223 is a circular groove coaxially concavely arranged on the outer side of the first plug 22, the second limiting portion 311 is a circular columnar body coaxially convexly arranged on the inner side of the second cushion block 31, the second limiting opening 323 is a circular groove coaxially concavely arranged on the outer side of the second plug 32, and the plug is detachably fixed to the cushion block through the circular columnar body; when in use, first, the first plug 22 and the second plug 32 are respectively blocked at On the two end openings 51 of the automobile cavity, then the circular column on the second gasket 31 is inserted into the circular groove on the second plug 32, and finally, by turning the driving handle 42 of the quick clamp, the driven rod 41 acts on the first gasket 21 and moves toward the side close to the first plug 22 until the circular column of the first gasket 21 is inserted into the circular groove of the first plug 22; specifically, the model of the quick clamp is 36204M quick clamp, which is used to continuously provide clamping force to ensure the sealing effect.

[0055] Preferably, the axial thickness of the first blocking end 222 is greater than the axial thickness of the second blocking end 322 .

[0056] Preferably, it also includes:

[0057] The adjusting screw 13 is arranged at one end of the connecting rod 1 close to the first clamping arm 11, and the first clamping arm 11 is provided with a first through hole for the adjusting screw 13 to pass through;

[0058] a pair of adjusting nuts 14, threadably engaged with the adjusting screw 13, acting on the first clamping arm 11;

[0059] A fixing screw 15 is disposed at one end of the connecting rod 1 close to the second clamping arm 12, and the second clamping arm 12 is provided with a second through hole for the fixing screw 15 to pass through;

[0060] The fixing nut 16 is threadably matched with the fixing screw 15 and acts on the second clamping arm 12 .

[0061] In this embodiment, by loosening and tightening a pair of adjusting nuts 14, the distance between the first clamping arm 11 and the second clamping arm 12 is adjusted, which is beneficial to broadening the application range of the clamp.

[0062] Preferably, the connecting rod 1 includes an upper rod body and a lower rod body with the same structure, and the axes of the upper rod body and the lower rod body are parallel to each other; it further includes a connecting block 17, and the connecting block 17 is arranged between the upper rod body and the lower rod body and can leave a gap between the two.

[0063] In this embodiment, the upper rod body and the lower rod body have the same size and shape. Two first through holes are formed in the first clamping arm 11, and two second through holes are formed in the second clamping arm 12. The parallel upper rod body and lower rod body are used to prevent the first clamping arm 11 from rotating around the adjusting screw 13 during the adjustment movement.

[0064] Preferably, the upper rod body and the lower rod body are respectively fixedly connected to the connecting block 17 by welding.

[0065] Preferably, both the first plug 22 and the second plug 32 are made of urethane rubber.

[0066] Preferably, the hardness of the urethane rubber is between Shore 80 and Shore 90 degrees.

[0067] In this embodiment, the hardness of the urethane rubber is Shore 85 degrees.

[0068] The above-disclosed are only the preferred embodiments of the present invention, and the scope of the patent protection of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A box airtightness clamp, characterized in that, Comprising: A connecting rod, with a first clamping arm provided at one end and a second clamping arm provided at the other end; A first sealing structure, provided on the inner side of the free end of the first clamping arm; A second sealing structure, provided on the inner side of the free end of the second clamping arm; A tightening and loosening structure, including a pushing and pulling part and a driving part. The first sealing structure is slidably connected to the first clamping arm through the pushing and pulling part, and the driving part can act on the pushing and pulling part and drive the first sealing structure to move towards or away from one end of the second sealing structure.

2. The airtight clamping device for a box according to claim 1, wherein The first sealing structure includes: A first cushion block, fixedly connected to the pushing and pulling part, and convexly provided with a first limiting part inward; A first plug, coaxially sleeved on the first limiting part, capable of sealing the hole of the box body; The second sealing structure includes: A second cushion block, fixedly connected to the second clamping arm, and convexly provided with a second limiting part inward; A second plug, coaxially sleeved on the second limiting part, capable of sealing the hole of the box body.

3. The airtight clamping device for a box according to claim 2, characterized in that, The tightening and loosening structure is a quick clamp, and further includes a clamp seat fixed to the free end of the first clamping arm. The pushing and pulling part is a driven rod coaxially passing through the clamp seat, the first cushion block is fixed to the inner end of the driven rod, and the driving part is a driving handle provided at the outer end of the driven rod; when the first plug and the second plug seal the two end holes of the box body, the quick clamp can continuously provide a clamping force to maintain the closure.

4. The airtight clamping device for a box according to claim 2, characterized in that, The first plug includes a first sealing cover and a first sealing end arranged coaxially. The first sealing cover is provided with a first limiting port on the side facing away from the first sealing end, and the first limiting part is adapted to the first limiting port; the second plug includes a second sealing cover and a second sealing end arranged coaxially. The second sealing cover is provided with a second limiting port on the side facing away from the second sealing end, and the second limiting part is adapted to the second limiting port.

5. The airtight clamping device for a box body according to claim 4, characterized in that The axial thickness of the first sealing end is greater than the axial thickness of the second sealing end.

6. The airtight clamping device for a box according to claim 1, characterized in that, Further comprising: An adjusting screw rod, provided at one end of the connecting rod close to the first clamping arm, and the first clamping arm is provided with a first through hole for the adjusting screw rod to pass through; A pair of adjusting nuts, threadedly engaged with the adjusting screw rod and acting on the first clamping arm; A fixing screw rod, provided at one end of the connecting rod close to the second clamping arm, and the second clamping arm is provided with a second through hole for the fixing screw rod to pass through; A fixing nut, threadedly engaged with the fixing screw rod and acting on the second clamping arm.

7. The airtight clamping device for a box body according to claim 6, characterized in that, The connecting rod includes an upper rod body and a lower rod body with the same structure, and the axes of the upper rod body and the lower rod body are parallel to each other; further including a connecting block, the connecting block is provided between the upper rod body and the lower rod body and can leave a gap between the two.

8. The airtight clamping device for a box body according to claim 7, characterized in that, The upper rod body and the lower rod body are respectively fixedly connected to the connecting block by welding.

9. A box airtightness clamp according to any one of claims 2-5, characterized in that Both the first plug and the second plug are made of urethane rubber.

10. A box airtightness clamp according to claim 9, characterized in that, The hardness of the urethane rubber is between Shore 80 and Shore 90 degrees.

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