CN116517932A - High strength clamp - Google Patents

Abstract

The application relates to a high-strength clamp, which relates to the technical field of clamps and comprises a clamp main body, wherein the clamp main body comprises a clamping part, a fixing part and a connecting part, a first locking piece and a second locking piece are arranged on the connecting part, and a first locking hole for inserting the first locking piece and a second locking hole for inserting the second locking piece are formed in the fixing part; an abutting block is arranged on one side, away from the clamping part, of the first locking hole, and a force application part is arranged at one end, away from the clamping part, of the first locking piece; according to the clamping clamp, the force application part on the first locking piece is abutted against the outer wall of the abutting block and tightly pressed when the clamping part is clamped by the tool pliers, so that the stress of the abutting part of the inner edge of the first locking piece and the inner edge of the first locking hole when the clamp is tightened is reduced, the possibility of tearing at four corners of the inner edge of the first locking hole is reduced, and the tearing resistance of the clamp is improved.

Description

High strength clamp

Technical Field

The application relates to the technical field of clamps, in particular to a high-strength clamp.

Background

A clip is a device for securing, connecting or restraining pipes, tubes and other components, typically made of metal. The existing clamp structure comprises a single-lug clamp, a double-lug clamp, a T-shaped clamp, a U-shaped clamp, a bending clamp and the like, and each type is suitable for different application scenes.

In the related art, referring to fig. 1, an electrodeless clamp comprises a clamping lug 4, a fixing piece 5 and a connecting piece 6, wherein two sides of the clamping lug 4 are respectively connected with the fixing piece 5 and the connecting piece 6, the three are integrally processed and formed, two locking blocks 61 and a clamping block 62 are arranged on the connecting piece 6, a first fixing hole 51 for inserting the two locking blocks 61 and a second fixing hole 52 for inserting the clamping block 62 are arranged on the fixing piece 5, when the clamp is used, the two locking blocks 61 are inserted into the two first fixing holes 51, the clamping block 62 is inserted into the second fixing hole 52, then a tool clamp is used for clamping the clamping lug 4, so that the clamp is in a tightening state, the locking blocks 61 are in butt joint with the inner edges of the first fixing holes 51, and the clamping block 62 is in butt joint with the inner edges of the second fixing holes 52.

However, when the clamp is tightened by using the tool pliers, because the first fixing hole and the second fixing hole are square holes punched, four sharp corners are arranged at the inner edges of the holes, and stress at the sharp corners of the inner edges of the square holes is concentrated when the clamp is tightened; when the clip is excessively tightened, it may occur that the first fixing hole is deformed in tension as shown in fig. 1, and the fixing piece of the clip is directly broken due to the tearing of the corner of the first fixing hole.

Disclosure of Invention

The utility model aims at providing a high strength clamp, solves among the above-mentioned related art when the clamp is excessively tightened, because the clamp is tightened up the time the border closed angle department stress is comparatively concentrated in the square hole, the problem of deformation or tearing can appear in the clamp.

The application provides a high strength clamp adopts following technical scheme:

the high-strength clamp comprises a clamp main body, wherein the clamp main body comprises a clamping part, a fixing part and a connecting part, two sides of the clamping part are respectively and fixedly connected with the fixing part and the connecting part, a first locking piece close to the clamping part and a second locking piece far away from the clamping part are arranged on the connecting part, and a first locking hole for inserting the first locking piece and a second locking hole for inserting the second locking piece are formed in the fixing part; an abutting block is arranged on one side, away from the clamping part, of the first locking hole, and a force application part is arranged at one end, away from the clamping part, of the first locking piece; when the clamp is in a tightened state, the force application part and the abutting block are mutually pressed.

Through adopting above-mentioned technical scheme, when the clamp is fixed to treat the mounting, establish the clamp cover and treat the mounting outer peripheral face, insert first locking piece inside the first locking hole, the second locking piece inserts inside the second locking hole, through the setting of butt piece, when using the tool pliers to press from both sides tight with clamping part, the outer wall butt and the compress tightly of the application of force portion and the butt piece on the first locking piece, with this stress that reduces first locking piece and first locking hole inner border butt department when the clamp tightens up, also reduce the possibility that tearing appears in the inner border four corners department of first locking hole simultaneously, so improve the anti-tearing performance of this clamp.

Optionally, the number of the abutting blocks is two, the two abutting blocks are respectively located at two corners of the first locking hole away from the clamping part, the two force application parts are also provided with two, the two force application parts are respectively arranged at two shoulders of the first locking piece, and the two force application parts correspond to the two abutting blocks.

Through adopting above-mentioned technical scheme, when the clamp is in the state of tightening, through the cooperation setting of two application of force portions and corresponding two butt pieces, two application of force portions respectively with the outer wall butt and the compress tightly of corresponding butt piece to this better reduction first locking hole inner edge stress concentration's when the clamp tightens up condition, improvement clamp's that can be better performance and life.

Optionally, the abutting blocks extend to be strip-shaped towards the direction close to the clamping part, and the two abutting blocks are respectively located at two sides of the first locking hole.

Through adopting above-mentioned technical scheme, because the butt piece extends into the strip to the direction that is close to clamping part to two butt pieces are located the both sides of first locking hole respectively, with this structural strength who improves first locking hole, reduce the clamp and appear stretching deformation or even tear the possibility in first locking hole when tightening up.

Optionally, the fixing portion is provided with a first protruding strip-shaped reinforcing block, and the first reinforcing block is arranged in an arc-shaped surrounding manner along one side of the first locking hole, which is close to the clamping portion; and two ends of the first reinforcing block are respectively connected with the two abutting blocks.

Through adopting above-mentioned technical scheme, when the clamp tightens up, the outer wall butt of application of force portion and butt piece compresses tightly, through the cooperation setting of first boss and butt piece, first boss and butt piece both are around first locking hole to this further improves the structural strength of first locking hole, also reduces the size of the concentrated stress in first locking hole inner edge when the clamp tightens up simultaneously, reduces the first locking hole and appears stretching deformation and even cracked possibility when the clamp tightens up.

Optionally, the first locking member is provided with a limiting portion located between the two force application portions.

Through adopting above-mentioned technical scheme, when the clamp tightens up, through the setting of spacing portion, the outside edge butt of spacing portion and first locking hole to this reduces the first locking piece and deviate from the inside possibility of first locking hole after the clamp tightens up.

Optionally, the butt piece is provided with one, the butt piece is whole to be the arc, the butt piece is kept away from clamping part's one corner by first locking hole and is extended to the another corner department of keeping away from clamping part, the application of force portion is provided with two, two application of force portions set up respectively in the both shoulders department of first locking piece, two application of force portions correspond with two angular positions that clamping part was kept away from to first locking hole.

Through adopting above-mentioned technical scheme, when the clamp tightens up, through the setting of butt piece, two application of force portions respectively with the position butt that the butt piece outer wall corresponds and compress tightly to this reduces the stress concentration condition that the clamping part was kept away from to first locking hole when the clamp tightens up, better improvement first locking hole kept away from the structural strength at clamping part inner edge, improves the anti-tearing performance of this clamp.

Optionally, the fixing part is provided with a second raised strip-shaped reinforcing block, and the second reinforcing block is arranged in an arc-shaped surrounding way along one side of the first locking hole, which is close to the clamping part; and two ends of the second reinforcing block are respectively connected with two ends of the abutting block.

Through adopting above-mentioned technical scheme, second reinforcing block and butt piece wholly encircle first locking hole, when the clamp tightens up, the outer wall butt of application of force portion and butt piece on the first locking piece sets up through the cooperation of second reinforcing block and butt piece to this further improves the structural strength of first locking hole, reduces the condition that the border stress concentrates in the first locking hole when the clamp tightens up, also reduces simultaneously that first locking hole appears stretching deformation and even cracked possibility when the clamp tightens up.

Optionally, the abutting block is formed by stamping the fixing part by stamping equipment, and a gap exists between the inner edge of the first locking hole and the abutting block.

Through adopting above-mentioned technical scheme, in butt piece stamping process, because there is the clearance between border and the butt piece in the first locking hole to this stamping process of being convenient for the butt piece improves the machining efficiency of butt piece.

Optionally, the inner edge of the first locking hole far away from the clamping part is in a flush state with the outer wall of the abutting block.

Through adopting above-mentioned technical scheme, when the clamp tightens up, because the interior border that clamping part was kept away from to first locking hole is the parallel and level state with the outer wall of butt piece, the outer wall butt of the application of force portion and butt piece of being convenient for compresses tightly, makes the clamp tighten up when using more fastening.

Optionally, the outer edge of the second locking hole is provided with an abutting block with the same structure as the first locking hole, and the second locking piece is provided with a force application part and a limiting part with the same structure as the first locking piece.

Through adopting above-mentioned technical scheme, when the clamp tightens up, the second locking piece inserts corresponding second locking hole inside equally, and the application of force portion on the second locking piece and the outer wall butt of butt piece compress tightly, and the limit part on the second locking piece and the outside edge butt in second locking hole to this reduces the second locking hole and appears stretching deformation and even tearing the condition when the clamp tightens up, further improves the anti-tearing performance of clamp.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the cooperation setting of application of force portion and butt piece on the first locking piece, when using the tool pincers to press from both sides tight clamping part, the application of force portion on the first locking piece and the outer wall butt of butt piece compress tightly to this reduces the stress of first locking piece and first locking hole inner edge butt department when the clamp tightens up, also reduces the possibility that the inner edge four corners department of first locking hole torn simultaneously, so as to improve the anti-tearing performance of this clamp.

2. Through the cooperation setting of butt piece and first boss, when the clamp tightens up, the outer wall butt of application of force portion and butt piece, the first boss and the better first locking hole of both of butt piece are around to this further improves the structural strength of first locking hole, reduces the condition that border stress concentrates in the first locking hole when the clamp tightens up, also reduces simultaneously that first locking hole appears stretching deformation or even cracked possibility when the clamp tightens up.

3. The outer edge of the second locking hole is provided with an abutting block with the same structure as the first locking hole, and the second locking piece is provided with a force application part and a limiting part with the same structure as the first locking piece; when the clamp is tightened, the second locking piece is inserted into the corresponding second locking hole, the force application part on the second locking piece is abutted with the outer wall of the abutting block and tightly pressed, and the limiting part on the second locking piece is abutted with the outer edge of the second locking hole, so that the conditions that the second locking hole is stretched and deformed and even torn when the clamp is tightened are reduced, and the anti-tearing performance of the clamp is further improved.

Drawings

FIG. 1 is a schematic view showing the structure of a prior art in which a band is torn when tightened;

FIG. 2 is a schematic overall structure of embodiment 1 of the present application;

FIG. 3 is a schematic view of a partial cross-sectional structure embodying a first locking member in installed engagement with a first locking hole according to embodiment 1 of the present application;

FIG. 4 is a schematic view showing a partial structure of a first locking member in embodiment 1 of the present application;

fig. 5 is a schematic view of a partial structure of embodiment 2 of the present application, in which the force application portion on the first locking member cooperates with the abutment block;

fig. 6 is a schematic view showing a partial structure of an abutment block according to embodiment 3 of the present application;

FIG. 7 is a schematic view showing a partial structure of the abutting block and the first reinforcing block in embodiment 4 of the present application;

fig. 8 is a schematic view showing a partial structure of an abutment block according to embodiment 5 of the present application;

fig. 9 is a schematic view showing a partial structure of the second reinforcing block and the abutting block in embodiment 6 of the present application.

In the figure, 1, a clamping part; 2. a fixing part; 21. a first locking hole; 22. a second locking hole; 23. an abutment block; 24. positioning holes; 25. a first reinforcing block; 26. a second reinforcing block; 3. a connection part; 31. a first locking member; 311. a force application part; 312. a limit part; 32. a second locking member; 33. a positioning strip; 4. clamping ears; 5. a fixing piece; 51. a first fixing hole; 52. a second fixing hole; 6. a connecting sheet; 61. a locking block; 62. and (5) clamping blocks.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

Example 1:

referring to fig. 2, a high strength clamp, includes the clamp main part, and the clamp main part includes clamping part 1, fixed part 2 and connecting portion 3, and clamping part 1's both sides respectively with fixed part 2 and connecting portion 3 fixed connection, clamping part 1, fixed part 2 and connecting portion 3 integrated into one piece.

Referring to fig. 2 and 3, the connecting portion 3 is provided with a first locking member 31 close to the clamping portion 1 and a second locking member 32 far from the clamping portion 1, both the first locking member 31 and the second locking member 32 are punched by punching equipment, and the fixing portion 2 is provided with a first locking hole 21 into which the first locking member 31 is inserted and a second locking hole 22 into which the second locking member 32 is inserted.

Referring to fig. 4, one end of the first locking member 31 away from the clamping portion 1 (see fig. 2) is provided with two force applying portions 311 and a limiting portion 312 located between the two force applying portions 311, the two force applying portions 311 are respectively disposed at two shoulders of the first locking member 31, and the position of the force applying portion 311 on the first locking member 31 is located at two shoulders of a person.

Referring to fig. 3 and 4, two abutment blocks 23 are provided on the fixing portion 2 at a side of the first locking hole 21 away from the clamping portion 1 (see fig. 2), and the two abutment blocks 23 are respectively located at two corners of the first locking hole 21 away from the clamping portion 1 (see fig. 2), and the two force application portions 311 correspond to the two abutment blocks 23 in position; when the clip is in the tightened state, the urging portion 311 of the first lock member 31 abuts against the outer wall of the abutment block 23 and presses against each other. The abutting block 23 is formed by stamping the fixed part 2 by stamping equipment, the first locking hole 21 is also formed by stamping equipment, and a gap exists between the inner edge of the first locking hole 21 and the abutting block 23; since a gap exists between the inner edge of the first locking hole 21 and the abutting block 23, the machining sequence of the abutting block 23 and the first locking hole 21 is sufficient regardless of the punching process, and the punching process of the abutting block 23 is facilitated.

Referring to fig. 4, the connecting portion 3 is provided with a positioning bar 33, the fixing portion 2 is provided with a positioning hole 24 into which the positioning bar 33 is inserted, and when the clip is tightened, the positioning bar 33 on the connecting portion 3 is inserted into the positioning hole 24 on the fixing portion 2 and then is bent and fixed by the tool pliers, so that the stability of the clip in use is improved. The outer edge of the second locking hole 22 is provided with an abutting block 23 with the same structure as the first locking hole 21, and the second locking piece 32 is provided with a force application part 311 and a limiting part 312 with the same structure as the first locking piece 31, so that the anti-tearing performance of the clamp is further improved.

The implementation principle of the embodiment of the application is as follows:

when the clamp is used for fixing a part to be fixed, the clamp is sleeved on the outer peripheral surface of the part to be fixed, the first locking piece 31 is inserted into the first locking hole 21, the second locking piece 32 is inserted into the second locking hole 22, then after the clamping part 1 is clamped by using a tool pliers, the force application parts 311 on the first locking piece 31 and the second locking piece 32 are abutted with the outer wall of the abutting block 23, so that the stress at the abutting part of the inner edges of the first locking piece 31 and the first locking hole 21 when the clamp is tightened is reduced, the possibility of tearing at four corners of the inner edges of the first locking hole 21 and the second locking hole 22 is reduced, and the tearing resistance of the clamp is improved.

Example 2:

referring to fig. 5, the embodiment of the present application is different from embodiment 1 in that an inner edge of the first locking hole 21 away from the clamping portion 1 (see fig. 2) is in a flush state with an outer wall of the abutment block 23, that is, a gap does not exist between an inner edge of the first locking hole 21 away from the clamping portion 1 (see fig. 2) and the abutment block 23; when the clamp is tightened, the force application part 311 on the first locking piece 31 directly abuts against the outer wall of the abutting block 23 and presses the same, so that the stress of the inner edge of the first locking hole 21 when the clamp is tightened can be reduced better, and the tearing resistance of the clamp can be improved.

Example 3:

referring to fig. 6, the difference between the embodiment of the present application and embodiment 1 is that the abutment blocks 23 extend in a strip shape in a direction approaching the clamping portion 1, and the two abutment blocks 23 are respectively located at two sides of the first locking hole 21, so as to improve the structural strength of the first locking hole 21, and reduce the possibility of deformation or fracture of the first locking hole 21 when the clamp is tightened.

Example 4:

referring to fig. 7, the difference between the embodiment and embodiment 3 of the present application is that the fixing portion 2 is provided with a first protruding bar-shaped reinforcing block 25, the first reinforcing block 25 is punched by a punching device, the first reinforcing block 25 is arranged along the side of the first locking hole 21, which is close to the clamping portion 1, in an arc-shaped surrounding manner, and two ends of the first reinforcing block 25 are respectively connected with two abutting blocks 23; this further improves the structural strength of the first locking hole 21 and further reduces the likelihood of deformation or tearing of the first locking hole 21 when the clamp is tightened.

Example 5:

referring to fig. 8, the embodiment of the present application is different from embodiment 3 in that the number of the abutment blocks 23 is one, and the whole of the abutment blocks 23 is arc-shaped, the abutment blocks 23 extend from one corner of the first locking hole 21 away from the clamping portion 1 to the other corner away from the clamping portion 1 (see fig. 7), and two force application portions 311 located at both shoulders of the first locking member 31 correspond to two corner positions of the first locking hole 21 away from the clamping portion 1 (see fig. 7); when the clamp is tightened, the two force application portions 311 at the two shoulders of the first locking piece 31 are respectively abutted against and pressed against the outer walls of the corresponding positions on the abutting blocks 23, and as the number of the abutting blocks 23 is only one, working stamping of the abutting blocks 23 by a worker through stamping equipment is facilitated.

Example 6:

referring to fig. 9, the difference between the embodiment and embodiment 5 of the present application is that the fixing portion 2 is provided with a second reinforcing block 26 having a convex strip shape, the second reinforcing block 26 is punched by a punching device, and the second reinforcing block 26 is disposed around the first locking hole 21 along a side close to the clamping portion 1 in an arc shape, and two ends of the second reinforcing block 26 are respectively connected with two ends of the abutting block 23. The second reinforcing block 26 and the abutting block 23 integrally encircle the outer edge of the first locking hole 21, so that the structural strength of the first locking hole 21 is further improved, and the possibility that the first locking hole 21 is stretched and deformed or torn when the clamp is tightened is reduced.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a high strength clamp, includes the clamp main part, the clamp main part includes clamping part (1), fixed part (2) and connecting portion (3), the both sides of clamping part (1) respectively with fixed part (2) and connecting portion (3) fixed connection, be equipped with on connecting portion (3) and be close to first locking piece (31) of clamping part (1) and keep away from second locking piece (32) of clamping part (1), set up first locking hole (21) and second locking hole (22) that supply first locking piece (31) to insert on fixed part (2);

the clamping device is characterized in that an abutting block (23) is arranged on one side, far away from the clamping part (1), of the first locking hole (21) of the fixing part (2), and a force application part (311) is arranged at one end, far away from the clamping part (1), of the first locking piece (31); when the clamp is in a tightened state, the force application part (311) and the abutting block (23) are mutually pressed.

2. The high-strength clamp according to claim 1, wherein the number of the abutting blocks (23) is two, the two abutting blocks (23) are respectively located at two corners of the first locking hole (21) away from the clamping portion (1), the two force application portions (311) are also arranged, the two force application portions (311) are respectively arranged at two shoulders of the first locking piece (31), and the two force application portions (311) correspond to the two abutting blocks (23).

3. A high strength clamp according to claim 2, characterized in that the abutment blocks (23) extend in a strip-like manner in a direction towards the clamping part (1), the two abutment blocks (23) being located on either side of the first locking hole (21).

4. The high-strength clamp according to claim 2, wherein the fixing portion (2) is provided with a first raised strip-shaped reinforcing block (25), and the first reinforcing block (25) is arranged in an arc-shaped surrounding manner along one side of the first locking hole (21) close to the clamping portion (1); the two ends of the first reinforcing block (25) are respectively connected with the two abutting blocks (23).

5. A high strength clamp according to claim 2, characterized in that the first locking member (31) is provided with a stop portion (312) between the two force application portions (311).

6. The high-strength clamp according to claim 1, wherein the abutting block (23) is provided with one, the abutting block (23) is arc-shaped as a whole, the abutting block (23) extends from one corner of the first locking hole (21) far away from the clamping part (1) to the other corner of the first locking hole far away from the clamping part (1), the force application parts (311) are provided with two, the two force application parts (311) are respectively arranged at two shoulders of the first locking piece (31), and the two force application parts (311) correspond to two corner positions of the first locking hole (21) far away from the clamping part (1).

7. The high-strength clamp according to claim 6, wherein the fixing part (2) is provided with a second convex reinforcing block (26), and the second reinforcing block (26) is arranged in an arc-shaped surrounding manner along one side of the first locking hole (21) close to the clamping part (1); both ends of the second reinforcing block (26) are respectively connected with both ends of the abutting block (23).

8. A high strength clamp according to claim 1, characterized in that the abutment block (23) is a stamping device for stamping the fixing portion (2), and that a gap is present between the inner edge of the first locking hole (21) and the abutment block (23).

9. A high strength clamp according to claim 1, characterized in that the inner edge of the first locking hole (21) remote from the clamping part (1) is flush with the outer wall of the abutment block (23).

10. A high strength clamp according to any of claims 1-9, wherein the outer edge of the second locking hole (22) is provided with an abutment block (23) having the same structure as the first locking hole (21), and the second locking member (32) is provided with a force applying part (311) and a limiting part (312) having the same structure as the first locking member (31).