CN211623904U - Anti-drop safety pin - Google Patents

Abstract

The utility model provides an anticreep safety catch, this anticreep safety catch includes: the anti-drop piece is provided with a first mounting hole and is used for being connected with the first connecting piece; the pin column is arranged in the first mounting hole in a penetrating manner and is used for being arranged between the first connecting piece and the second connecting piece in a penetrating manner so as to limit the relative displacement of the first connecting piece and the second connecting piece; the limiting structure is arranged between the pin column and the anti-falling part, the pin column is provided with a limiting position and an avoiding position which are arranged oppositely, the pin column can rotate between the limiting position and the avoiding position, and when the pin column is positioned at the limiting position, the limiting structure is used for limiting the axial displacement of the pin column relative to the anti-falling part; locking structure sets up between round pin post and anticreep piece, and locking structure is used for restricting the relative anticreep piece of round pin post and rotates to make the round pin post keep in limit position. Through the technical scheme that this application provided, can solve the problem that the safety pin among the prior art easily drops.

Description

Anti-drop safety pin

Technical Field

The utility model relates to a safety pin technical field particularly, relates to an anticreep safety pin.

Background

At present, the workpiece is hoisted by utilizing the lifting appliance generally, and the firmness of connection between the lifting appliance and the workpiece is required to be ensured in order to ensure the safety of hoisting. Wherein, hoist and work piece all are provided with the connecting hole, through inserting the bolt in the connecting hole of hoist and work piece, can realize the high-speed joint between hoist and the work piece. Specifically, in the using process of the lifting appliance, the positions of the horizontal lifting, the inclined lifting and the vertical lifting of the workpiece are changed in a rotating mode, the speed of the lifting, the descending, the advancing and the retreating of the workpiece is changed, the collision and the vibration are occasionally changed, the changes can cause the bolt to fall off, and potential safety hazards exist. Therefore, the problem that the bolt is easy to fall off exists in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anticreep safety pin to solve the problem that the safety pin among the prior art easily drops.

The utility model provides an anticreep safety catch, anticreep safety catch includes: the anti-drop piece is provided with a first mounting hole and is used for being connected with the first connecting piece; the pin column is arranged in the first mounting hole in a penetrating manner and is used for being arranged between the first connecting piece and the second connecting piece in a penetrating manner so as to limit the relative displacement of the first connecting piece and the second connecting piece; the limiting structure is arranged between the pin column and the anti-falling part, the pin column is provided with a limiting position and an avoiding position which are arranged oppositely, the pin column can rotate between the limiting position and the avoiding position, and when the pin column is positioned at the limiting position, the limiting structure is used for limiting the axial displacement of the pin column relative to the anti-falling part; locking structure sets up between round pin post and anticreep piece, and locking structure is used for restricting the relative anticreep piece of round pin post and rotates to make the round pin post keep in limit position.

Further, limit structure includes the joint subassembly, and the joint subassembly sets up between round pin post and anticreep piece.

Further, the clamping assembly includes: the clamping groove is arranged on one of the anti-falling piece and the pin column; the clamping boss is arranged on the other one of the anti-falling piece and the pin column and clamped in the clamping groove to limit axial displacement of the pin column relative to the anti-falling piece.

Furthermore, the joint recess sets up on the inner wall of first mounting hole, and the joint recess is the annular groove, and the joint recess is located the periphery of round pin post, and the joint boss sets up on the outer wall of round pin post.

Further, anticreep piece is still including dodging the groove, dodges the groove and extends along the axis direction of anticreep piece, dodges the groove and is linked together with the joint recess, dodges the groove and corresponds the setting of joint boss, and the joint boss removes to the joint recess in through dodging the groove.

Further, locking structure includes magnetic component, and magnetic component sets up between round pin post and anticreep piece, and magnetic component corresponds the joint boss setting.

Further, be provided with the second mounting hole on the anticreep piece, the setting of joint recess is corresponded to the second mounting hole, and magnetic component includes: the magnetic part is arranged in the second mounting hole and used for adsorbing the clamping boss to fix the pin at the limiting position.

Furthermore, the magnetic part is positioned on one side of the clamping boss far away from the first connecting piece.

Furthermore, be provided with a plurality of joint bosss on the outer wall of round pin post, a plurality of joint bosss set up along the circumference interval of round pin post, are provided with a plurality of magnetic assembly on the anticreep piece, and a plurality of magnetic assembly set up with a plurality of joint bosss one-to-one.

Further, the round pin post includes interconnect's first section and second section, and the second section is worn to establish between first connecting piece and second connecting piece, and the diameter of first section is greater than the diameter of second section, and limit structure and locking structure all set up between first section and anticreep piece.

Use the technical scheme of the utility model, this anticreep safety catch includes anticreep piece, round pin post, limit structure and locking structure. The anti-falling part is provided with a first mounting hole and used for being connected with the first connecting part, the pin column is arranged in the first mounting hole in a penetrating mode and used for being arranged between the first connecting part and the second connecting part in a penetrating mode so as to limit the relative displacement of the first connecting part and the second connecting part. Through setting up limit structure between round pin post and anticreep piece, the round pin post has relative limit position who sets up and dodges the position, and the round pin post can rotate between limit position and dodge the position, and when the round pin post was located limit position, limit structure was used for limiting the relative anticreep piece's of round pin post axial displacement to avoid the round pin post to drop from first connecting piece and second connecting piece, can guarantee the firm in connection nature of first connecting piece and second connecting piece. Through setting up locking structure between round pin post and anticreep piece, utilize locking structure can restrict the relative anticreep piece of round pin post and rotate to make the round pin post keep in limit position, can further promote the fixed effect of round pin post.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an anti-drop safety pin provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an anti-drop safety pin according to an embodiment of the present invention;

FIG. 3 shows a schematic view of the construction of the release preventing member of FIG. 1;

FIG. 4 shows a further constructional view of the release element of FIG. 1;

FIG. 5 shows a cross-sectional view at A-A in FIG. 4;

FIG. 6 shows a schematic structural view of the pin of FIG. 1;

FIG. 7 shows a further structural schematic of the pin of FIG. 1;

fig. 8 is an assembly view of the anti-separation safety pin, the first connecting member and the second connecting member according to the embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a drop-off prevention member; 11. a first mounting hole; 12. an avoidance groove; 13. a second mounting hole;

20. a pin; 21. a first stage; 22. a second stage;

30. a limiting structure; 31. a clamping assembly; 311. clamping the groove; 312. clamping the boss;

40. a locking structure; 41. a magnetic component; 411. a magnetic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 8, an embodiment of the present invention provides an anti-dropping safety pin, which is used for connecting a first connecting member and a second connecting member to realize the quick assembly and disassembly of the first connecting member and the second connecting member. Specifically, the anti-dropping safety pin comprises an anti-dropping part 10, a pin column 20, a limiting structure 30 and a locking structure 40. Wherein, anticreep piece 10 has first mounting hole 11, and anticreep piece 10 is used for being connected with first connecting piece, and round pin post 20 wears to establish in first mounting hole 11, through wearing to establish between first connecting piece and second connecting piece with round pin post 20, utilizes round pin post 20 can restrict the relative displacement of first connecting piece and second connecting piece to avoid first connecting piece and second connecting piece separation. By disposing the limiting structure 30 between the pin 20 and the anti-slip member 10, the limiting structure 30 can limit the axial displacement of the pin 20 relative to the anti-slip member 10 to prevent the pin 20 from being disengaged from the anti-slip member 10. Specifically, the pin column 20 has a limiting position and an avoiding position which are arranged relatively, the pin column 20 can rotate between the limiting position and the avoiding position, when the pin column 20 rotates to the limiting position, the limiting structure 30 is used for limiting the axial displacement of the pin column 20 relative to the anti-falling part 10, when the pin column 20 rotates to the avoiding position, the pin column 20 can move axially relative to the anti-falling part 10, at the moment, the pin column 20 can be arranged between the first connecting part and the second connecting part in a penetrating mode, or the pin column 20 can be detached from the first connecting part and the second connecting part. Through setting up locking structure 40 between round pin post 20 and anticreep piece 10, utilize locking structure 40 can restrict round pin post 20 and rotate relative anticreep piece 10 to make round pin post 20 keep in the limiting position, avoid leading to round pin post 20 to drop because of vibrations changes such as position rotation change, speed change or collide with.

Use the anticreep safety pin that this embodiment provided, through set up limit structure 30 between round pin post 20 and anticreep piece 10, can utilize limit structure 30 to restrict the relative anticreep piece 10's of round pin post 20 axial displacement to avoid round pin post 20 to drop from first connecting piece and second connecting piece, can guarantee the firm in connection nature of first connecting piece and second connecting piece. By arranging the locking structure 40 between the pin 20 and the anti-slip part 10, the locking structure 40 can limit the pin 20 from rotating relative to the anti-slip part 10, so that the pin 20 is kept at a limiting position, and the fixing effect of the pin 20 can be further improved.

In this embodiment, the limiting structure 30 includes a clamping assembly 31, the clamping assembly 31 is disposed between the pin 20 and the anti-slip member 10, and the clamping assembly 31 can limit the displacement of the pin 20 relative to the anti-slip member 10. The clamping component 31 includes a hook and a bayonet fitting manner, and a buckle and a bayonet fitting manner.

As shown in fig. 3 and 6, the latch assembly 31 includes a latch recess 311 and a latch projection 312. Specifically, the clamping groove 311 is disposed on one of the anti-separation member 10 and the pin column 20, the clamping boss 312 is disposed on the other of the anti-separation member 10 and the pin column 20, and the axial displacement of the pin column 20 relative to the anti-separation member 10 can be limited by clamping the clamping boss 312 in the clamping groove 311. In this embodiment, the catching groove 311 is provided on the anti-slip member 10, and the catching boss 312 is provided on the pin 20. In other embodiments, the snap groove 311 may be formed on the pin 20, and the snap projection 312 may be formed on the separation prevention member 10.

Specifically, joint recess 311 sets up on the inner wall of first mounting hole 11, and joint recess 311 is the annular groove, and joint recess 311 is located the periphery of round pin post 20, and joint boss 312 sets up on the outer wall of round pin post 20. The first mounting hole 11 extends in the axial direction of the stopper 10. The clamping boss 312 and the clamping groove 311 can be clamped only by rotating the pin column 20 in the form of the annular groove, so that the assembly is facilitated.

As shown in fig. 3 and 4, in order to facilitate the insertion of the clamping boss 312 into the clamping groove 311, the anti-release member 10 further includes an avoiding groove 12, the avoiding groove 12 extends along the axial direction of the anti-release member 10, and the avoiding groove 12 is communicated with the clamping groove 311. Specifically, it sets up to dodge groove 12 and correspond joint boss 312, and joint boss 312 accessible dodges groove 12 and removes to joint recess 311 in, after removing joint boss 312 to joint recess 311 in, can realize the joint of joint boss 312 and joint recess 311 through rotating pin post 20.

In this embodiment, the locking structure 40 includes a magnetic assembly 41, the magnetic assembly 41 is disposed between the pin 20 and the anti-separation member 10, the magnetic assembly 41 is disposed corresponding to the clamping boss 312, and the clamping boss 312 can be adsorbed at the position-limiting position by the magnetic assembly 41. In other embodiments, the locking structure 40 may also be configured as a clamping structure, and by further configuring a second clamping groove in the clamping groove 311, when the pin 20 is rotated to the limiting position, the clamping boss 312 is clamped in the second clamping groove, and the rotation of the pin 20 can also be limited by the cooperation between the clamping boss 312 and the second clamping groove. Alternatively, the pin 20 is designed to be opposite to the anti-slip member 10 in the key principle.

In this embodiment, the anti-disengaging part 10 is provided with a second mounting hole 13, the second mounting hole 13 is provided corresponding to the clamping groove 311, the magnetic assembly 41 includes a magnetic part 411, the magnetic part 411 is provided in the second mounting hole 13, and the magnetic part 411 is used for adsorbing the clamping boss 312 to fix the pin 20 at the limiting position. In other embodiments, can set up second joint recess on magnetic part 411, so can utilize magnetism to inhale structure and joint structure and fix round pin post 20 simultaneously, can further promote fixed effect. Wherein the magnetic member 411 includes a magnet.

Specifically, the magnetic member 411 is located on a side of the clamping boss 312 away from the first connector. Because round pin post 20 has the trend of keeping away from first connecting piece removal, through setting up magnetic part 411 in the one side of keeping away from first connecting piece of joint boss 312, can shorten the distance between magnetic part 411 and the joint boss 312, reinforcing adsorption affinity promotes fixed effect.

Wherein, be provided with a plurality of joint bosss 312 on the outer wall of round pin post 20, a plurality of joint bosss 312 set up along the circumference interval of round pin post 20, are provided with a plurality of magnetic component 41 on the anticreep piece 10, and a plurality of magnetic component 41 set up with a plurality of joint boss 312 one-to-one, so can utilize a plurality of magnetic component 41 to fix round pin post 20 simultaneously, can further promote fixed effect. In this embodiment, two clamping bosses 312 are disposed on the outer wall of the pin 20, the two clamping bosses 312 are symmetrically disposed, two magnetic assemblies 41 are disposed on the anti-separation member 10, and the anti-separation member 10 includes two avoiding grooves 12.

As shown in fig. 6 and 7, the pin 20 includes a first section 21 and a second section 22 connected to each other, the second section 22 is inserted between the first connecting member and the second connecting member, the diameter of the first section 21 is greater than that of the second section 22, and the limiting structure 30 and the locking structure 40 are both disposed between the first section 21 and the anti-falling member 10. The first mounting hole 11 has a third section and a fourth section which are communicated with each other, the third section is arranged corresponding to the first section 21, the inner diameter of the third section is matched with the outer diameter of the first section 21, the fourth section is arranged corresponding to the second section 22, and the inner diameter of the fourth section is matched with the outer diameter of the second section 22.

Wherein, anticreep piece 10 is the ring structure.

In this embodiment, the first connecting member is a lifting device, and the second connecting member is a workpiece.

To facilitate understanding of the apparatus provided in the present embodiment, the following is explained in connection with the assembly process:

(1) welding the anti-release part 10 with the lifting appliance, ensuring that the center holes are concentric, and embedding 2 magnets in second mounting holes 13 in the anti-release part 10, so that the anti-release part 10 is mounted;

(2) the clamping boss 312 of the pin column 20 enters the clamping groove 311 through the avoiding groove 12 of the anti-release part 10;

(3) after the pin column 20 is rotated by an angle of 90 degrees, the clamping boss 312 of the pin column 20 stays at the magnet in the anti-falling part 10, and the pin column 20 cannot axially move without external force, so that the anti-falling function of the pin column 20 is realized;

(4) after the hoisting is finished, after the pin column 20 is rotated by an angle of 90 degrees, the clamping boss 312 of the pin column 20 stays at the avoidance groove 12 of the anti-falling part 10, and the pin column 20 can be pulled out.

In addition, in order to ensure the position of the control pin column 20 relative to the lifting appliance, the anti-drop piece 10 is additionally arranged between the lifting appliance and the pin column 20, the lifting appliance is connected with the anti-drop piece 10 in a welding mode, a locking structure is not directly arranged on the lifting appliance, and the strength requirement of the lifting appliance can be ensured.

The device provided by the embodiment has the following beneficial effects:

(1) the pin column 20 is provided with a clamping boss 312, the anti-falling part 10 is provided with an avoiding groove 12 matched with the clamping boss 312 of the pin column 20 to ensure that the clamping boss 312 of the pin column 20 enters and exits, the anti-falling part 10 is provided with a clamping groove 311 matched with the clamping boss 312 of the pin column 20 to ensure that the pin column 20 is clamped in a rotating space of the boss 312, axial positioning is met, and anti-falling can be realized;

(2) a magnet is embedded in the position of the anti-falling part 10 deviating from the avoidance groove 12, and the clamping boss 312 of the pin column 20 is sucked, so that the pin column 20 does not rotate, and the anti-falling is realized;

(3) the safety pin lifting device has the advantages of simple structure, reliable performance, high efficiency and convenience in manufacturing, workers can operate conveniently, safety pins can be operated rapidly to pass in and out, the change of the rotation of the positions of the horizontal lifting, the inclined lifting and the vertical lifting of workpieces and the change of acceleration or deceleration of lifting, advancing and retreating occur occasionally, and the safety pins cannot fall off due to the changes.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An anti-drop shear pin, comprising:

the anti-falling piece (10) is provided with a first mounting hole (11), and the anti-falling piece (10) is used for being connected with a first connecting piece;

the pin column (20) is arranged in the first mounting hole (11) in a penetrating mode, and the pin column (20) is arranged between the first connecting piece and the second connecting piece in a penetrating mode so as to limit the relative displacement of the first connecting piece and the second connecting piece;

a limiting structure (30) arranged between the pin (20) and the anti-release part (10), wherein the pin (20) has a limiting position and a avoiding position which are arranged oppositely, the pin (20) can rotate between the limiting position and the avoiding position, and when the pin (20) is located at the limiting position, the limiting structure (30) is used for limiting the axial displacement of the pin (20) relative to the anti-release part (10);

the locking structure (40) is arranged between the pin (20) and the anti-release part (10), and the locking structure (40) is used for limiting the pin (20) to rotate relative to the anti-release part (10) so that the pin (20) is kept at the limiting position.

2. The anti-drop safety pin according to claim 1, characterized in that the limiting structure (30) comprises a snap-in assembly (31), the snap-in assembly (31) being arranged between the pin (20) and the anti-drop element (10).

3. The anti-drop shear pin of claim 2, wherein the snap-in assembly (31) comprises:

a clamping groove (311) arranged on one of the anti-falling part (10) and the pin column (20);

joint boss (312), set up anticreep spare (10) with on another of round pin post (20), joint boss (312) joint is in joint recess (311), in order to restrict round pin post (20) is relative the axial displacement of anticreep spare (10).

4. The anti-drop safety pin according to claim 3, characterized in that the clamping groove (311) is formed in the inner wall of the first mounting hole (11), the clamping groove (311) is an annular groove, the clamping groove (311) is located on the periphery of the pin (20), and the clamping boss (312) is formed in the outer wall of the pin (20).

5. The anti-drop safety pin according to claim 3, characterized in that, the anti-drop piece (10) further comprises an avoiding groove (12), the avoiding groove (12) extends along the axis direction of the anti-drop piece (10), the avoiding groove (12) is communicated with the clamping groove (311), the avoiding groove (12) corresponds to the clamping boss (312) and is arranged, and the clamping boss (312) passes through the avoiding groove (12) and moves into the clamping groove (311).

6. The anti-drop safety pin according to claim 3, characterized in that the locking structure (40) comprises a magnetic assembly (41), the magnetic assembly (41) is arranged between the pin (20) and the anti-drop element (10), and the magnetic assembly (41) is arranged corresponding to the clamping boss (312).

7. The anti-drop safety pin according to claim 6, characterized in that the anti-drop member (10) is provided with a second mounting hole (13), the second mounting hole (13) is arranged corresponding to the clamping groove (311), and the magnetic assembly (41) comprises:

magnetic part (411), set up in second mounting hole (13), magnetic part (411) are used for adsorbing joint boss (312) are in order to fix pin post (20) are in limit position.

8. The anti-drop shear pin of claim 7, wherein the magnetic member (411) is located on a side of the snap boss (312) remote from the first connector.

9. The anti-dropping safety pin according to claim 6, characterized in that a plurality of clamping bosses (312) are arranged on the outer wall of the pin column (20), the plurality of clamping bosses (312) are arranged along the circumferential direction of the pin column (20) at intervals, a plurality of magnetic assemblies (41) are arranged on the anti-dropping part (10), and the plurality of magnetic assemblies (41) and the plurality of clamping bosses (312) are arranged in a one-to-one correspondence manner.

10. The anti-drop safety pin according to claim 1, characterized in that the pin (20) comprises a first section (21) and a second section (22) connected to each other, the second section (22) is inserted between the first and second connecting members, the diameter of the first section (21) is greater than that of the second section (22), and the limiting structure (30) and the locking structure (40) are both arranged between the first section (21) and the anti-drop element (10).

Images