Prying tool

Abstract

The utility model discloses a prying tool which comprises a long handle rod, an arc-shaped bent prying block, a cushion block, a secondary prying point, a pluggable connecting seat arranged on the long handle rod opposite to the position of the cushion block, and a connecting rod arranged on the pluggable connecting seat, one end of the connecting rod is connected with the pluggable connecting seat, and the other end of the connecting rod extends to the position above the cushion block. The end part of the connecting rod is provided with a hammer which takes the plugging connecting seat as a base point and knocks the cushion block under the driving of the connecting rod under the action of an artificial external force; and the handle is arranged at the position of the hammer. And the arc-shaped bent skid comprises an arc-shaped part embedded in the crack, a bent part which is integrally connected with one end of the arc-shaped part, and a tip part which is arranged at the other end of the arc-shaped part. The second-stage prying point comprises a first step protruding block and a second step protruding block which are sequentially clamped on an object on one side of the crack after the arc-shaped bent prying block is clamped into the crack deeper and deeper, and the first step protruding block and the second step protruding block are sequentially arranged at the bent position of the back face of the arc-shaped bent prying block. The utility model has the effects of convenience in use and facilitation of forcible entry of the door.

Description

Technical Field

[0001] The utility model belongs to the field of military, police and fire fighting appliances, and particularly relates to a crowbar applied to door demolition. Background Art

[0002] At present, the commonly used tool for manually demolishing a door on the market is a crowbar, which mainly consists of a long handle rod, a curved crowbar block provided at one end of the long handle rod, and a flat clamping block provided at the end of the crowbar block. When in use, the flat clamping block is clamped into the door gap, and then the lever acting force formed by the curved crowbar block and the long handle rod is used to pry the door gap. Since the traditional crowbar block is a right-angled curved crowbar block (as shown in Figure 1 ), when one side of the right-angled curved crowbar block is inserted into the door gap during actual use, it does not hook the door to be pried. The main reason is that the back of the right angle position gets stuck on the door frame edge, resulting in the inability of the right-angled curved crowbar block to continue extending into the door gap. If the length of the right-angled curved crowbar block inserted into the door gap is less than the thickness of the door to be pried, it cannot play the role of demolishing the door. Therefore, in order to overcome the problems of insufficient extension length of the right-angled curved crowbar block after being inserted into the door gap and the inability to pry the door around the back of the door to be pried, there now appears an arc-shaped curved crowbar block (as shown in Figure 2 ), that is, changing the traditional right-angled curved structure to an arc-shaped curved structure. Its purpose is to insert one side of the arc-shaped curved crowbar block into the door gap between the door to be pried and the door frame. When the extension length is insufficient or it is necessary to go around to the back of the door to be pried, it is only necessary to free one hand or with the help of others, use a hammer to further knock the arc-shaped curved part against the door to be pried and the door frame into the door gap until one side of the arc-shaped curved crowbar block continues to extend into the door gap and goes around to the back of the door to be pried. Finally, the lever principle is used to pry the door outward to achieve the purpose of demolishing the door. However, during actual use, if too much force is applied to knock on the arc-shaped curved part, the entire arc-shaped curved crowbar block will slide from the door gap all the way into the door to be pried. At this time, the crowbar cannot be pulled out and cannot be pried either. In this way, not only the purpose of prying the door cannot be achieved, but also unnecessary troubles are added. In addition, for the knocking on the arc-shaped curved part, it is necessary for the user to free one hand or with the help of others and cooperate with a hammer to complete it, which also causes inconvenience in use. Summary of the Utility Model

[0003] In view of the above problems, the purpose of the present utility model is to provide a crowbar that is convenient to use and conducive to door demolition.

[0004] To achieve the above object, the utility model provides a crowbar, which includes a long handle rod, an arc-shaped bending crowbar block clamped into a crack at one end of the long handle rod, a cushion block arranged at the bending position on the back of the arc-shaped bending crowbar block, a secondary crowbar point arranged on one side of the cushion block and cooperating with the arc-shaped bending crowbar block to clamp on an object on one side of the crack, a plug-in connection seat arranged on the long handle rod at a position opposite to the cushion block, a connecting rod with one end connected to the plug-in connection seat and the other end extending above the cushion block, a hammer arranged at the end of the connecting rod and knocking the cushion block driven by the connecting rod under the action of human external force with the plug-in connection seat as the base point, and a handle arranged at the position of the hammer. The arc-shaped bending crowbar block includes an arc part embedded in the crack, a bending part integrally connected to one end of the arc part, and a pointed part arranged at the other end.

[0005] The secondary crowbar point includes a first stepped convex block and a second stepped convex block which are sequentially arranged at the bending part position on the back of the arc-shaped bending crowbar block and are sequentially clamped on an object on one side of the crack as the arc-shaped bending crowbar block is clamped deeper into the crack.

[0006] In some embodiments, a plurality of clamping grooves are sequentially arranged on the arc part of the arc-shaped bending crowbar block, and after the arc-shaped bending crowbar block is clamped into the crack, the clamping grooves are gradually clamped on an object on one side of the crack.

[0007] In some embodiments, both the first stepped convex block and the second stepped convex block are triangular convex blocks.

[0008] In some embodiments, the secondary crowbar point is integrally connected to the bending part of the arc-shaped bending crowbar block.

[0009] In some embodiments, the bending part of the arc-shaped bending crowbar block is integrally connected to the long handle rod, and is bent inward at the connection position.

[0010] In some embodiments, the end of the long handle rod is bent inward.

[0011] In some embodiments, the pluggable connector seat includes a concave seat fixed on a long handle rod and connected to the end of the connecting rod, a first receiving cavity provided at the end of the connecting rod, a first opening provided on the first receiving cavity, a tongue extending out of the first opening and into the first receiving cavity, a first convex ring provided on the tongue in the first receiving cavity and clamping on the first opening, a first spring provided between the tongue in the first receiving cavity and the bottom surface of the first receiving cavity, a second receiving cavity provided on the concave seat corresponding to the position of the first receiving cavity, a second opening opposite to the first opening provided on the second receiving cavity, a protruding column extending out of the second opening and into the second receiving cavity, a concave position for receiving the end of the tongue provided at the end of the telescopic column, a second convex ring provided on the tongue in the second receiving cavity and clamping on the second opening, a second spring provided between the tongue in the second receiving cavity and the bottom surface of the second receiving cavity, a third opening communicating with the outside provided at the bottom surface of the second receiving cavity, and a pressing column extending from the third opening provided on the protruding column.

[0012] In some embodiments, the connecting rod is a curved connecting rod.

[0013] The beneficial effect of the present utility model is that it is convenient to use and beneficial to the effect of breaking open the door. Since the improved structure adds a knockable cushion block on the basis of the existing arc-shaped curved pry block, and a secondary pry point is also added on the cushion block, it can ensure that the arc-shaped curved pry block can extend into the gap continuously and can also go around to the back of the door to be pried, and the opening of the gap can be further enlarged by using the fulcrum of the secondary pry point. In addition, the knockable cushion block promotes the arc-shaped curved pry block to further extend into the inner side of the gap. The main way is to rotate and knock the cushion block with a hammer by holding the handle with the pluggable connector seat as the base point. In this way, the method of further breaking open the door by knocking the arc-shaped curved pry block is not only convenient to operate but also labor-saving. Therefore, it realizes the convenience of use and the beneficial effect of breaking open the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the crowbar structure of a right-angled curved pry block in the prior art;

[0015] Figure 2 Schematic diagram of the crowbar structure of an arc-shaped curved pry block in the prior art

[0016] Figure 3 Schematic diagram of the structure of the present utility model;

[0017] Figure 4 Schematic diagram of the structure of the present utility model in the use state;

[0018] Figure 5 Schematic diagram of the structure of the pluggable connector seat in the present utility model;

[0019] Figure 6This is a schematic structural view of the arc-shaped bent pry block and the cushion block in the present utility model;

[0020] Figure 7 This is a schematic structural view of the back of the arc-shaped bent pry block in the present utility model;

[0021] Figure 8 This is a schematic internal structural view of the plug-in connection base in the present utility model;

[0022] Figure 9 This is a schematic structural view of the tongue and the protruding column in the present utility model. Detailed implementation mode

[0023] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] As Figure 3-7 shown, a pry tool includes a long handle rod 01, an arc-shaped bent pry block 02 that is clamped into a crack at one end of the long handle rod 01, a cushion block 03 provided at the bent position on the back of the arc-shaped bent pry block 02, a secondary pry point 04 provided on one side of the cushion block 03 and cooperating with the arc-shaped bent pry block 02 to be clamped on an object on one side of the crack, a plug-in connection base 05 provided on the long handle rod 01 at a position opposite to the cushion block 03, a connecting rod 06 with one end connected to the plug-in connection base 05 and the other end extending above the cushion block 03, a hammer 07 provided at the end of the connecting rod 06 and knocking on the cushion block 03 driven by the connecting rod 06 under the action of an external force of a person with the plug-in connection base 05 as the base point, and a handle 08 provided at the position of the hammer 07. The arc-shaped bent pry block 02 includes an arc portion 21 embedded in the crack, a bent portion 22 integrally connected to one end of the arc portion 21, and a pointed portion 23 provided at the other end. A handle is provided on the above-mentioned long handle rod 01.

[0025] The secondary pry point 04 includes a first stepped convex block 41 and a second stepped convex block 42 that are sequentially provided at the bent portion 22 position on the back of the arc-shaped bent pry block 02 and are sequentially clamped on an object on one side of the crack as the arc-shaped bent pry block 02 is clamped deeper into the crack.

[0026] A plurality of card slots 09 are sequentially provided on the arc portion 21 of the arc-shaped bent pry block 02 and are gradually clamped on an object on one side of the crack after the arc-shaped bent pry block 02 is clamped into the crack.

[0027] Both the first stepped convex block 41 and the second stepped convex block 42 are triangular convex blocks.

[0028] The secondary pry point 04 is integrally connected to the bent portion 22 of the arc-shaped bent pry block 02.

[0029] The bent portion 22 of the arc-shaped bent pry block 02 is integrally connected to the long handle rod 01 and bends inward at the connection position.

[0030] The end of the long handle rod 01 bends inward, and the purpose of this design is to facilitate the user's operation.

[0031] As Figure 8-9 shown, the plug-in connection seat 05 includes a concave seat 51 fixedly provided on the long handle rod 01 and connected to the end of the connecting rod 06, a first receiving cavity 52 provided at the end of the connecting rod 06, a first opening 53 provided on the first receiving cavity 52, a tongue 54 provided in the first receiving cavity 52 and extending out of the first opening 53 to the outside of the first receiving cavity 52, a first convex ring 55 provided on the tongue 54 in the first receiving cavity 52 and clamped on the first opening 53, a first spring 56 provided between the tongue 54 in the first receiving cavity 52 and the bottom surface of the first receiving cavity 52, a second receiving cavity 57 provided on the concave seat 51 corresponding to the position of the first receiving cavity 52, a second opening 58 opposite to the first opening 53 provided on the second receiving cavity 57, a protruding column 59 extending out of the second opening 58 to the outside of the second receiving cavity 57 provided in the second receiving cavity 57, a concave position 510 for receiving the end of the tongue 54 provided at the end of the telescopic column, a second convex ring 511 provided on the tongue 54 in the second receiving cavity 57 and clamped on the second opening 58, a second spring 512 provided between the tongue 54 in the second receiving cavity 57 and the bottom surface of the second receiving cavity 57, a third opening 513 communicating with the outside provided on the bottom surface of the second receiving cavity 57, and a pressing column 514 extending from the third opening 513 provided on the protruding column 59.

[0032] The usage method of the above plug-in connection seat 05 is to place the end of the connecting rod 06 into the concave seat 51 of the concave position 510, use the tongue 54 carried by the end of the connecting rod 06 to be clamped into the concave position 510 of the protruding column 59, and push it into the second opening 58. At this time, the protruding column 59 moves backward under the action of the force, and at the same time, under the action of the reaction force of the second spring 512, the pressing column 514 slowly extends out of the third opening 513, and the tongue 54 is clamped into the second opening 58, and the connecting rod 06 is in a locked state. When taking it out, only need to press the pressing column 514 on the side of the concave seat 51 of the concave position 510 to make the tongue 54 disengage from the second opening 58 and the concave position 510 on the protruding column 59, and the connecting rod 06 can be unlocked.

[0033] The connecting rod 06 is a curved connecting rod 06. The purpose of this design is to facilitate the user to stand at the concave position 10 of the curved connecting rod 06 for use and will not be touched by the connecting rod 06.

[0034] Working principle

[0035] The above-mentioned crack is equivalent to the crack formed between the door and the door frame; the object on one side of the crack is equivalent to the door frame on one side of the crack.

[0036] When it is necessary to break open a door, after inserting the tip 23 of the arc-shaped bending pry block 02 into the door seam, with the cooperation between the back of the arc-shaped part 21 and multiple card slots 09, the arc-shaped bending pry block 02 gradually extends into the door seam. At this time, the card slots 09 are successively stuck to the door frame to ensure that the arc-shaped part 21 is always in a tightly clamped state after being inserted into the door seam. If it is necessary to further extend the arc-shaped part 21 of the arc-shaped bending pry block 02 into the door seam and wrap around the back of the door to be pried, the user only needs to stand at the recessed position of the curved connecting rod 06, hold the handle 08 at the position of the hammer 07 with the arm at a 90-degree angle, and rotate and use the hammer 07 to strike the cushion block 03 with the plug-in connection seat 05 as the base point, so that the card slot 09 on the arc-shaped bending pry block 02 is stuck in the door seam. Then, the first stepped convex block 41 is stuck to the door frame to form the first lever pry point with the arc-shaped bending pry block 02 and the long handle rod 01. If it is necessary to continue to further extend the arc-shaped part 21 of the arc-shaped bending pry block 02 into the door seam and wrap around the back of the door to be pried, still use the hammer 07 to strike the cushion block 03 to make the first stepped convex block 41 disengage from the door frame and further widen the width of the door seam. At this time, the second stepped convex block 42 is stuck to the door frame to form the second lever pry point with the arc-shaped bending pry block 02 and the long handle rod 01. Finally, use the lever principle to break open the door.

[0037] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the utility model.

Claims

1. A crowbar, characterized in that, It includes a long handle rod, an arc-shaped bent pry block provided at one end of the long handle rod and inserted into a crack, a cushion block provided at the bent position on the back of the arc-shaped bent pry block, a secondary pry point provided on one side of the cushion block and cooperating with the arc-shaped bent pry block to be clamped on an object on one side of the crack, a plug-in connection seat provided on the long handle rod at a position opposite to the cushion block, a connecting rod provided on the plug-in connection seat, with one end connected to the plug-in connection seat and the other end extending above the cushion block, and a hammer provided at the end of the connecting rod and knocking on the cushion block driven by the connecting rod under the action of human external force with the plug-in connection seat as the base point, and a handle provided at the position of the hammer; The arc-shaped bent pry block includes an arc portion inserted into the crack, a bent portion integrally connected to one end of the arc portion, and a pointed portion provided at the other end; The secondary pry point includes a first stepped convex block and a second stepped convex block that are sequentially provided at the bent portion position on the back of the arc-shaped bent pry block and are sequentially clamped on an object on one side of the crack as the arc-shaped bent pry block is inserted deeper into the crack; 2. The crowbar according to claim 1, characterized in that, A plurality of clamping grooves are sequentially arranged on the arc portion of the arc-shaped bent pry block, and after the arc-shaped bent pry block is inserted into the crack, the clamping grooves are gradually clamped on an object on one side of the crack; 3. The crowbar according to claim 2, wherein, Both the first stepped convex block and the second stepped convex block are triangular convex blocks; 4. A crowbar according to claim 1, 2 or 3, characterized in that, The secondary pry point is integrally connected to the bent portion of the arc-shaped bent pry block; 5. A crowbar according to claim 1, characterized in that, The bent portion of the arc-shaped bent pry block is integrally connected to the long handle rod, and bends inward at the connection position; 6. A crowbar according to claim 1, characterized in that, The end of the long handle rod bends inward; 7. A crowbar according to claim 1, characterized in that, The plug-in connection seat includes a concave seat fixedly provided on the long handle rod and connected to the end of the connecting rod, a first accommodation cavity provided at the end of the connecting rod, a first opening provided on the first accommodation cavity, a tongue extending from the first opening to the outside of the first accommodation cavity in the first accommodation cavity, a first convex ring clamped on the first opening on the tongue in the first accommodation cavity, a first spring provided between the tongue in the first accommodation cavity and the bottom surface of the first accommodation cavity; A second accommodation cavity provided on the concave seat corresponding to the position of the first accommodation cavity, a second opening opposite to the first opening provided on the second accommodation cavity, a protruding column extending from the second opening to the outside of the second accommodation cavity in the second accommodation cavity, a concave position for accommodating the end of the tongue provided at the end of the telescopic column, a second convex ring clamped on the second opening on the tongue in the second accommodation cavity, a second spring provided between the tongue in the second accommodation cavity and the bottom surface of the second accommodation cavity, a third opening communicated with the outside provided on the bottom surface of the second accommodation cavity, and a pressing column extending from the third opening provided on the protruding column; 8. A crowbar according to claim 1, characterized in that, The connecting rod is a curved connecting rod.

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