Butterfly-shaped quick-release pin

Abstract

The utility model relates to the technical field of quick-release pins, and discloses a butterfly-shaped quick-release pin which comprises a shell, a lock pin assembly is installed in the shell and comprises a butterfly-shaped piece, a connecting block, a reset spring, a sleeve, an installation base, a connecting rod and a pin rod, the connecting block is arranged on the lower surface of the butterfly-shaped piece, the installation base is arranged on the lower surface of the connecting block, and the pin rod is arranged on the lower surface of the butterfly-shaped piece. A through hole is formed in the middle of the mounting seat, a connecting rod is slidably connected into the through hole, a mounting hole is formed in the outer surface of the connecting rod, a pin rod is mounted in the mounting hole, and the sleeve is a single-side closed cylinder. The clamping block is extruded to push the sliding plate to move in the cavity, meanwhile, the limiting spring is gradually compressed, when the outer surface of the clamping block is flush with the outer surface of the connecting rod, the mounting base is pulled upwards, the mounting base and the connecting rod can be detached, and then the reset spring in the sleeve can be replaced; the waste of materials is reduced, and a good environment-friendly effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of quick-release pins, in particular to a butterfly-shaped quick-release pin. Background Art

[0002] Quick release pins are commonly used connectors in the market, especially in automation equipment. Existing quick release pins usually use threaded connections and riveted connections.

[0003] The utility model patent application document with the publication number "CN210715476U" discloses a quick release pin, which is mainly composed of a tubular pin sleeve, a pin tail, a sliding hole, a clearance hole, a pin cap and a reset elastic member. The technical solution uses the clearance groove on the telescopic pin to cooperate with the lock, and ensures that the clearance groove and the lock are matched or staggered according to the movement of the pin to realize whether the lock protrudes from the outer surface of the pin sleeve, so as to achieve rapid locking or disassembly. The structure is simple and the performance is reliable. The reset elastic member effectively prevents the lock from retracting and causing the quick release pin to fail.

[0004] The quick release pin disclosed in the above document has the following defects: the elasticity of the reset elastic part of the quick release pin is easily reduced or even fails during long-term use. However, the reset elastic part of the quick release pin cannot be replaced, so the quick release pin can only be replaced as a whole, resulting in a waste of resources.

[0005] It can be seen from this that the existing quick-release pin does not have a structure for replacing the reset spring, and it is necessary to improve the existing shortcomings and provide a butterfly quick-release pin. Utility Model Content

[0006] The purpose of the utility model is to provide a butterfly-shaped quick-release pin to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a butterfly-shaped quick-release pin, comprising a shell, a locking nail assembly is installed inside the shell, the locking nail assembly comprises a butterfly-shaped piece, a connecting block, a return spring, a sleeve, a mounting seat, a connecting rod and a pin rod, the lower surface of the butterfly-shaped piece is provided with a connecting block, the lower surface of the connecting block is provided with a mounting seat, a through hole is opened in the middle of the mounting seat, a connecting rod is slidably connected to the inside of the through hole, a mounting hole is opened on the outer surface of the connecting rod, a pin rod is installed inside the mounting hole, the sleeve is a single-side closed cylinder, a connecting rod is installed inside the sleeve, the One end of the connecting rod passes through the sleeve and extends downward, a return spring is sleeved on the outer surface of the connecting rod, a cavity is opened inside the connecting rod, a disassembly assembly is installed inside the cavity, the disassembly assembly includes a slide plate, a block and a limit spring, the slide plate is slidably connected inside the cavity, the slide plates are fixed in two and symmetrically arranged, a limit spring is installed between the two slide plates, a block is installed on the end of the slide plate away from the limit spring, one end of the block passes through the connecting block and extends outward, and the outer surface of the block abuts against the outer surface of the mounting seat.

[0009] Furthermore, an external thread is provided on the lower surface of the connection block, and the connection block is movably mounted on the mounting seat via the external thread.

[0010] Furthermore, a limiting block is installed on the lower surface of the connecting block, and the lower surface of the limiting block abuts against the upper surface of the connecting rod.

[0011] Furthermore, a protective ring is provided on the upper surface of the sleeve.

[0012] Furthermore, a sealing ring is installed on the outer surface of the sleeve.

[0013] Furthermore, the outer shell includes a mounting plate, a first column and a second column, the lower surface of the mounting plate is provided with the first column, the lower surface of the first column is provided with the second column, the upper surface of the first column is provided with a mounting groove, a sleeve is installed inside the mounting groove, the outer surface of the second column is provided with a limiting groove, a pin is installed inside the limiting groove, and a plurality of anti-slip gaskets are installed on the outer surface of the mounting plate.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model squeezes the card block so that the card block pushes the slide plate to move inside the cavity, and at the same time the limit spring is gradually compressed. When the outer surface of the card block is flush with the outer surface of the connecting rod, the mounting seat can be pulled upward to disassemble the mounting seat from the connecting rod, and then the return spring inside the sleeve can be replaced, thereby reducing material waste and achieving a better environmental protection effect.

[0016] (2) The utility model can limit the position of the connecting rod by setting a limit block, so as to prevent the position of the connecting rod from moving during use, thereby affecting the use effect, and achieve a better fixing effect.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is an exploded view of the locking pin assembly structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the locking pin assembly structure of the utility model;

[0022] Figure 4 This is a cross-sectional view of the mounting seat, connecting rod and disassembly assembly structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the shell structure of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. shell; 101. mounting plate; 102. first column; 103. second column; 10301. limit groove; 2. locking pin assembly; 201. butterfly piece; 202. connecting block; 20201. external thread; 203. return spring; 204. sleeve; 20401. protective ring; 205. mounting seat; 206. connecting rod; 207. pin rod; 3. disassembly assembly; 301. slide plate; 302. block; 303. limit spring; 4. limit block; 5. sealing ring; 6. anti-slip gasket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 - Figure 5 As shown, the utility model is a butterfly quick-release pin, comprising a shell 1, a locking nail assembly 2 is installed inside the shell 1, the locking nail assembly 2 comprises a butterfly piece 201, a connecting block 202, a return spring 203, a sleeve 204, a mounting seat 205, a connecting rod 206 and a pin rod 207, the lower surface of the butterfly piece 201 is provided with a connecting block 202, the lower surface of the connecting block 202 is provided with a mounting seat 205, the middle part of the mounting seat 205 is provided with a through hole, the inside of the through hole is slidably connected with a connecting rod 206, the outer surface of the connecting rod 206 is provided with a mounting hole, the inside of the mounting hole is installed with a pin rod 207, the sleeve 204 is a single-side closed cylinder, the inside of the sleeve 204 is installed with a connecting rod 206, One end of the connecting rod 206 passes through the sleeve 204 and extends downward. The outer surface of the connecting rod 206 is sleeved with a reset spring 203. A cavity is opened inside the connecting rod 206. A disassembly component 3 is installed inside the cavity. The disassembly component 3 includes a slide plate 301, a block 302 and a limit spring 303. The slide plate 301 is slidably connected inside the cavity. The slide plates 301 are fixed in two and symmetrically arranged. A limit spring 303 is installed between the two slide plates 301. A block 302 is installed at one end of the slide plate 301 away from the limit spring 303. One end of the block 302 passes through the connecting block 202 and extends outward. The outer surface of the block 302 abuts against the outer surface of the mounting seat 205.

[0028] An external thread 20201 is formed on the lower surface of the connection block 202 , and the connection block 202 is movably mounted on the mounting seat 205 via the external thread 20201 .

[0029] A limiting block 4 is installed on the lower surface of the connecting block 202 , and the lower surface of the limiting block 4 abuts against the upper surface of the connecting rod 206 .

[0030] A protective ring 20401 is provided on the upper surface of the sleeve 204 .

[0031] A sealing ring 5 is installed on the outer surface of the sleeve 204 .

[0032] The housing 1 includes a mounting plate 101, a first column 102 and a second column 103. The first column 102 is provided on the lower surface of the mounting plate 101, and the second column 103 is provided on the lower surface of the first column 102. A mounting groove is provided on the upper surface of the first column 102, and a sleeve 204 is installed inside the mounting groove. A limiting groove 10301 is provided on the outer surface of the second column 103, and a pin rod 207 is installed inside the limiting groove 10301. A plurality of anti-slip pads 6 are installed on the outer surface of the mounting plate 101.

[0033] When in use, first fix the housing 1 to external components by bolts, and the anti-skid pad 6 provided can increase the friction between the bolt and the housing 1 to prevent the bolt from loosening when shaking. By pressing the butterfly piece 201, the mounting seat 205 squeezes the return spring 203, and the connecting rod 206 moves downward, so that the pin 207 is disengaged from the inside of the limit groove 10301, and then the butterfly piece 201 is rotated 90°. At this time, the quick latch is in a locked state. When the locked state needs to be canceled, the butterfly piece 201 is pressed, so that the mounting seat 205 squeezes the return spring 203, and the connecting rod 206 moves downward, so that the pin 207 cancels the lock, and then the butterfly piece 201 is rotated 90°, and then the lock is canceled. Apply force, and the return spring 203 recovers its elasticity and pushes the mounting seat 205 to reset. At the same time, the pin rod 207 returns to the inside of the limiting groove 10301. When the return spring 203 needs to be replaced, the butterfly piece 201 is rotated counterclockwise to cancel the installation of the connecting block 202 and the mounting seat 205. Then, by squeezing the block 302, the block 302 pushes the slide plate 301 to move inside the cavity. At the same time, the limit spring 303 is gradually compressed. When the outer surface of the block 302 is flush with the outer surface of the connecting rod 206, the mounting seat 205 is pulled upward at this time, the mounting seat 205 and the connecting rod 206 can be disassembled, and then the return spring 203 inside the sleeve 204 can be replaced, which reduces material waste and achieves a better environmental protection effect.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A butterfly-shaped quick-release pin, comprising a housing (1), Features: A locking nail assembly (2) is installed inside the housing (1), and the locking nail assembly (2) comprises a butterfly piece (201), a connecting block (202), a return spring (203), a sleeve (204), a mounting seat (205), a connecting rod (206) and a pin rod (207). The lower surface of the butterfly piece (201) is provided with a connecting block (202), and the lower surface of the connecting block (202) is provided with a mounting seat (205). A through hole is opened in the middle of the mounting seat (205), and the connecting rod (206) is slidably connected to the inside of the through hole. 206), a mounting hole is provided on the outer surface of the connecting rod (206), a pin rod (207) is installed inside the mounting hole, the sleeve (204) is a single-sided closed cylinder, a connecting rod (206) is installed inside the sleeve (204), one end of the connecting rod (206) passes through the sleeve (204) and extends downward, a return spring (203) is sleeved on the outer surface of the connecting rod (206), a cavity is provided inside the connecting rod (206), and a disassembly component (3) is installed inside the cavity; The disassembly assembly (3) comprises a slide plate (301), a clamping block (302) and a limit spring (303); the slide plate (301) is slidably connected inside the cavity; the slide plates (301) are fixed in two and symmetrical arrangements; a limit spring (303) is installed between the two slide plates (301); a clamping block (302) is installed at one end of the slide plate (301) away from the limit spring (303); one end of the clamping block (302) passes through the connecting block (202) and extends outward; an outer surface of the clamping block (302) abuts against an outer surface of the mounting seat (205).

2. A butterfly quick release pin according to claim 1, Features: The lower surface of the connection block (202) is provided with an external thread (20201), and the connection block (202) is movably mounted on the mounting seat (205) via the external thread (20201).

3. A butterfly quick release pin according to claim 1, Features: A limit block (4) is installed on the lower surface of the connection block (202), and the lower surface of the limit block (4) abuts against the upper surface of the connection rod (206).

4. A butterfly quick release pin according to claim 1, Features: A protective ring (20401) is provided on the upper surface of the sleeve (204).

5. A butterfly quick release pin according to claim 1, Features: A sealing ring (5) is installed on the outer surface of the sleeve (204).

6. A butterfly quick release pin according to claim 1, Features: The housing (1) comprises a mounting plate (101), a first column (102) and a second column (103); the first column (102) is provided on the lower surface of the mounting plate (101); the second column (103) is provided on the lower surface of the first column (102); a mounting groove is provided on the upper surface of the first column (102); a sleeve (204) is installed inside the mounting groove; a limiting groove (10301) is provided on the outer surface of the second column (103); a pin rod (207) is installed inside the limiting groove (10301); and a plurality of anti-slip pads (6) are installed on the outer surface of the mounting plate (101).

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