CN215928061U

CN215928061U - Energy-saving safety pin

Info

Publication number: CN215928061U
Application number: CN202121854312.0U
Authority: CN
Inventors: 高思远; 胡飞; 陈兴发; 张晓冬; 李晴晴; 杨莹莹
Original assignee: Huaibei Jinyuan Industry And Trade Co ltd
Current assignee: Huaibei Jinyuan Industry And Trade Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-03-01
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to the technical field of safety pins and discloses an energy-saving safety pin which comprises a pin body, wherein a sliding hole is formed in the pin body, a sliding rod is movably connected inside the sliding hole, a first sliding block is fixedly arranged on the front end face of the sliding rod, a shifting block is arranged at the rear end of the sliding rod, sliding grooves are uniformly formed in the circumferential direction of the front end face of the pin body, a limiting block is movably arranged inside the sliding grooves, and a second sliding block is fixedly arranged on the front end face of the limiting block. According to the utility model, the safety pin is inserted into the connecting hole between the first connecting piece and the second connecting piece, then the shifting block is shifted, the direction of the shifting block is changed from the axial direction to the radial direction, the shifting block drives the sliding rod to move towards the rear end of the safety pin along the sliding hole, the sliding rod drives the first sliding block to extrude the second sliding block, the front end cambered surface of the second sliding block drives the limiting block to move along the sliding groove in the radial direction under the pressure of the sliding rod, and at the moment, four groups of groups form limiting surfaces at the front ends of the safety pin, so that the risk of safety pin is accidentally separated from the safety pin can be eliminated.

Description

Energy-saving safety pin

Technical Field

The utility model relates to the technical field of safety pins, in particular to an energy-saving safety pin.

Background

The safety pin is a standard part commonly used in various devices, at present, the safety pin is commonly used in hoisting of a first connecting piece, overhaul of the equipment, a scene that the first connecting piece needs to be connected or limited with a second connecting piece such as equipment connection, wherein the first connecting piece and the second connecting piece are both provided with connecting holes, and a bolt is inserted into the connecting holes of the first connecting piece and the second connecting piece, so that the quick connection between the first connecting piece and the second connecting piece can be realized. Specifically, the first connecting piece has the various position rotation changes of second connecting piece in the use to and the speed change of rising with decline, advancing and backspacing, the change of the vibrations of colliding with takes place occasionally, and these changes all probably cause the bolt to drop, have the potential safety hazard. Therefore, the problem that the bolt is easy to fall off exists in the prior art.

To this end, we propose an energy-saving safety pin.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems in the prior art and provides an energy-saving safety pin.

In order to achieve the purpose, the utility model adopts the following technical scheme that the energy-saving safety pin comprises a pin body, wherein a sliding hole is axially formed in the middle of the front end face of the pin body and penetrates through the front end face and the rear end face of the pin body, a sliding rod is movably connected inside the sliding hole, a first sliding block is fixedly installed on the front end face of the sliding rod, and a shifting block is arranged at the rear end of the sliding rod;

the front end face of the pin body is provided with an accommodating groove, the front end face of the pin body is circumferentially and uniformly provided with a sliding groove, one end of the sliding groove, which is close to the accommodating groove, is axially provided with a limiting groove, the end face of the limiting groove, which is parallel to the central axis of the pin body, is radially provided with a spring groove, and the end face, which is parallel to the central axis of the pin body, in the spring groove is fixedly provided with a spring;

the inside movable mounting of sliding tray has the stopper, and the position fixed mounting that the stopper corresponds the spacing groove has the limiting plate, and the limiting plate is close to the other end of the terminal surface fixedly connected with spring in spring groove, the preceding terminal surface fixed mounting of stopper has the second sliding block.

Preferably, the outer wall surface of the rear end of the sliding rod is radially provided with a first connecting hole, and the first connecting hole penetrates through the outer walls of the two sides of the sliding rod.

Preferably, the shifting block is a block with an arc surface at one end, a movable groove is horizontally arranged at the arc surface end of the shifting block, a sliding rod is movably mounted in the movable groove, a second connecting hole is formed in the upper end face, close to the arc surface end, of the shifting block, the second connecting hole penetrates through the upper end face and the lower end face of the shifting block, a connecting rod is movably mounted in the second connecting hole, and the middle of the connecting rod is movably mounted inside the first connecting hole.

Preferably, the difference between the horizontal distance between the second connecting hole and the front and rear end faces of the shifting block and the distance between the second connecting hole and the arc face end of the shifting block is the same as the thickness of the cylindrical end of the first sliding block.

Preferably, the inner wall of the accommodating groove is attached to the circular truncated cone portion of the first sliding block.

Preferably, the outer wall surface of the second sliding block has the same curvature as that of the outer wall surface of the pin body, the inner wall surface of the second sliding block has the same curvature as that of the outer wall surface of the first sliding block, and the front end cambered surface of the second sliding block is attached to the circular truncated cone cambered surface of the first sliding block.

Advantageous effects

The utility model provides an energy-saving safety pin. The method has the following beneficial effects:

(1) this energy-saving safety pin, insert the safety pin in the connecting hole between first connecting piece and the second connecting piece, stir the shifting block again, change the direction of shifting block into radially by the axial, because of the second connecting hole is different apart from the length of shifting block cambered surface end and second connecting hole apart from shifting block plane end, the shifting block makes the slide bar remove to the safety pin rear end along the slide opening after changing the direction, the slide bar drives first sliding block extrusion second sliding block, the front end cambered surface of second sliding block receives the pressure of slide bar to drive the stopper along the sliding tray radial movement, four group's second sliding blocks outwards expand this moment, form spacing face at the safety pin front end, and first sliding block laminates with the holding tank mutually, the inner wall cambered surface of spring laminates with the outer wall surface of first sliding block, let whole spacing face more firm, can eliminate the unexpected risk that breaks away from of safety pin.

(2) This energy-saving safety pin, after the safety pin used, change the shifting block into the axial by radial, the slide bar can be at the downthehole activity of sliding, the limiting plate will be promoted to the spring this moment, the limiting plate drives the stopper and follows the radial migration of sliding tray, the stopper drives second sliding block radial migration, the round platform position of the first sliding block of front end cambered surface extrusion of second sliding block simultaneously, the outer wall of final second sliding block and the laminating of the outer wall of the round pin body, spacing face disappears, the safety pin can freely be taken out, realize the effect of quick assembly disassembly safety pin.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is an exploded view of the structure of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a perspective view of the limiting block of the present invention;

FIG. 4 is a perspective view of the present invention in an unused state;

fig. 5 is a perspective view of the present invention in use.

Illustration of the drawings:

1. a pin body; 2. a slide hole; 3. a slide bar; 4. a first slider; 5. a first connection hole; 6. shifting blocks; 7. a movable groove; 8. a second connection hole; 9. a connecting rod; 10. accommodating grooves; 11. a sliding groove; 12. a limiting groove; 13. a spring slot; 14. a spring; 15. a limiting block; 16. a limiting plate; 17. a second slider; 18. a first connecting member; 19. a second connecting member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): the utility model provides an energy-saving safety pin, as shown in fig. 1-5, including round pin body 1, round pin body 1 is round long rod and the diameter of round pin body 1 rear end is one or more five times of other position diameters, sliding hole 2 has been seted up to the middle axial of the preceding terminal surface of round pin body 1, sliding hole 2 is the circular port and runs through the front and back terminal surface of round pin body 1, sliding hole 2's inside swing joint has slide bar 3, slide bar 3 is round long rod, slide bar 3's preceding terminal surface fixed mounting has first sliding block 4, first sliding block 4 is that the rear end is the round platform front end and is the cylindrical structure, first sliding block 4 front end diameter is eight times zero of round pin body 1 diameter, first connecting hole 5 has radially been seted up to the outer wall of the rear end of slide bar 3, first connecting hole 5 is the both sides outer wall that round port and first connecting hole 5 run through slide bar 3.

The rear end of slide bar 3 is provided with shifting block 6, shifting block 6 is the rectangular block that one end is provided with the cambered surface, the cambered surface end level of shifting block 6 is opened and is equipped with movable groove 7, movable groove 7 is rectangular channel and the width of movable groove 7 is the same with the width of shifting block 6, movable mounting has first connecting hole 5 in the movable groove 7, shifting block 6 has seted up second connecting hole 8 near the up end of cambered surface end, second connecting hole 8 is circular channel and the diameter of second connecting hole 8 is the same with the diameter of first connecting hole 5, the difference of the horizontal distance of second connecting hole 8 and shifting block 6 front and back terminal surface and the distance of second connecting hole 8 and shifting block 6 cambered surface end is the same with first 4 cylinder end thicknesses of sliding block, second connecting hole 8 runs through the upper and lower terminal surface of shifting block 6, movable mounting has connecting rod 9 in the second connecting hole 8, connecting rod 9 is circular stock, the middle part movable mounting of connecting rod 9 is in the inside of first connecting hole 5.

Holding tank 10 has been seted up to the preceding terminal surface of the round pin body 1, the inner wall of holding tank 10 is laminated mutually with the round platform of first sliding block 4, at least four sliding tray 11 have evenly been seted up to the preceding terminal surface circumference of the round pin body 1, sliding tray 11 is the T-slot, sliding tray 11 has been seted up near the one end axial of holding tank 10 spacing groove 12, spacing groove 12 is the groove that the cross section is triangle-shaped, spacing groove 12 has radially been seted up on the terminal surface that is on a parallel with round pin body 1 center pin, spring groove 13 is the circular recess, the inside terminal surface fixed mounting that is on a parallel with round pin body 1 center pin of spring groove 13 has spring 14, spring 14 is pressure spring.

The spring 14 is movably provided with a limiting block 15 inside, the limiting block 15 is a T-shaped block, a limiting plate 16 is fixedly arranged at the position of the limiting block 15 corresponding to the limiting groove 12, the limiting plate 16 is a rectangular block and is fixedly connected with the other end of the spring 14 close to the end surface of the spring groove 13, the front end surface of the limiting block 15 is fixedly provided with a second sliding block 17, the second sliding block 17 is a quarter-round block, the front end surface of the second sliding block 17 is of an arc surface structure, the outer wall surfaces of the four groups of second sliding blocks 17 can form a complete arc surface and have the same diameter as that of the outer wall surface of the pin body 1, the inner wall surfaces of the four groups of second sliding blocks 17 can form a complete arc surface and have the same diameter as that of the outer wall surface of the first sliding block 4, and the front end surfaces of the four groups of second sliding blocks 17 can form a complete arc surface and have the same size as that of the circular truncated cone of the first sliding block 4.

The working principle of the utility model is as follows: the safety pin is inserted into the connecting hole between the first connecting piece 18 and the second connecting piece 19, then the shifting block 6 is shifted, the direction of the shifting block 6 is changed from axial direction to radial direction, because the lengths of the second connecting hole 8 from the arc surface end of the shifting block 6 and the second connecting hole 8 from the plane end of the shifting block 6 are different, the shifting block 6 changes the direction and then the sliding rod 3 moves to the rear end of the safety pin along the sliding hole 2, the sliding rod 3 drives the first sliding block 4 to extrude the second sliding block 17, the front end arc surface of the second sliding block 17 is driven by the pressure of the sliding rod 3 to drive the limiting block 15 to move along the radial direction of the sliding groove 11, at the moment, the four groups of second sliding blocks 17 expand outwards, spacing face is formed at the safety pin front end to first sliding block 4 laminates with holding tank 10 mutually, and the laminating of the inner wall cambered surface of spring 14 and the outer wall of first sliding block 4 lets whole spacing face more firm, can eliminate the unexpected risk that breaks away from of safety pin.

After the safety pin used, change shifting block 6 into the axial by radial, slide bar 3 can be at the activity of slide hole 2, spring 14 will promote limiting plate 16 this moment, limiting plate 16 drives limiting block 15 along sliding tray 11 radial movement, limiting block 15 drives second sliding block 17 radial movement, the round platform position of the first sliding block 4 of front end cambered surface extrusion of second sliding block 17 simultaneously, the outer wall of final second sliding block 17 is laminated with the outer wall of the round pin body 1, the spacing face disappears, the safety pin can freely be taken out, realize the effect of quick assembly disassembly safety pin.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An energy-saving safety pin, includes the round pin body (1), its characterized in that: a sliding hole (2) is axially formed in the middle of the front end face of the pin body (1), the sliding hole (2) penetrates through the front end face and the rear end face of the pin body (1), a sliding rod (3) is movably connected inside the sliding hole (2), a first sliding block (4) is fixedly installed on the front end face of the sliding rod (3), and a shifting block (6) is arranged at the rear end of the sliding rod (3);

the front end face of the pin body (1) is provided with an accommodating groove (10), the front end face of the pin body (1) is circumferentially and uniformly provided with a sliding groove (11), one end, close to the accommodating groove (10), of the sliding groove (11) is axially provided with a limiting groove (12), the end face, parallel to the central axis of the pin body (1), of the limiting groove (12) is radially provided with a spring groove (13), and the end face, parallel to the central axis of the pin body (1), in the spring groove (13) is fixedly provided with a spring (14);

the inside movable mounting of sliding tray (11) has stopper (15), and stopper (15) correspond the fixed position of spacing groove (12) and install limiting plate (16), and limiting plate (16) are close to the other end of terminal surface fixedly connected with spring (14) of spring groove (13), the preceding terminal surface fixed mounting of stopper (15) has second sliding block (17).

2. An energy saving shear pin as defined in claim 1, wherein: first connecting hole (5) have radially been seted up to the rear end outer wall face of slide bar (3), and first connecting hole (5) run through the both sides outer wall of slide bar (3).

3. An energy saving shear pin as defined in claim 2, wherein: shifting block (6) are the blocks that one end was provided with the cambered surface, and the cambered surface end horizontal plane of shifting block (6) is equipped with movable groove (7), and movable mounting has slide bar (3) in movable groove (7), second connecting hole (8) have been seted up to the up end that shifting block (6) are close to the cambered surface end, second connecting hole (8) run through the upper and lower terminal surface of shifting block (6), and movable mounting has connecting rod (9) in second connecting hole (8), the middle part movable mounting of connecting rod (9) is in the inside of first connecting hole (5).

4. An energy saving shear pin as defined in claim 3, wherein: the difference between the horizontal distance between the second connecting hole (8) and the front and rear end faces of the shifting block (6) and the distance between the second connecting hole (8) and the arc face end of the shifting block (6) is the same as the thickness of the cylindrical end of the first sliding block (4).

5. An energy saving shear pin as defined in claim 1, wherein: the inner wall of the accommodating groove (10) is attached to the circular truncated cone part of the first sliding block (4).

6. An energy saving shear pin as defined in claim 1, wherein: the outer wall surface of the second sliding block (17) is the same as the outer wall surface curvature of the pin body (1), the inner wall surface of the second sliding block (17) is the same as the outer wall surface curvature of the first sliding block (4), and the front end cambered surface of the second sliding block (17) is attached to the circular truncated cone cambered surface of the first sliding block (4).