Pull-off separation structure with positioning and locking functions

Abstract

The invention provides a pull-off separation structure with positioning and locking functions, and belongs to the technical field of locking mechanisms, the pull-off separation structure specifically comprises an inner shaft, an inner sleeve and an outer sleeve, the inner sleeve is arranged on the periphery of the inner shaft in a sleeving mode, the outer sleeve is arranged on the periphery of the inner sleeve in a sleeving mode, the inner shaft comprises a first section and a second section which are connected with each other, and a plurality of hollowed-out grooves are formed in the side wall of the inner sleeve; a plurality of hollowed-out grooves are formed in the outer sleeve, the hollowed-out grooves are distributed in the circumferential direction of the inner sleeve at intervals, elastic pieces are arranged in the hollowed-out grooves, protruding structures are arranged on the outer walls of the ends, close to the first section, of the elastic pieces, and through holes allowing the protruding structures to penetrate through are formed in the side wall of the outer sleeve. The outer cylinder enables the elastic piece to approach the side wall of the conical section along the outer wall face of the protruding structure till the most protruding position on the protruding structure enters the through hole or the outer sleeve. According to the processing scheme, the locking and separating convenience of the locking structure is improved.

Description

Technical Field

[0001] The present application relates to the field of locking mechanisms, and in particular to a pull-off separation structure with positioning locking. Background Art

[0002] Auxiliary positioning components and locking and separation components are widely used in the docking and separation of testing equipment, aviation, aerospace, ships and other equipment. In the early stage, the positioning function and locking function were realized by two components respectively, occupying the structural space and requiring multiple steps to realize the above functions. First, auxiliary positioning is required to guide the equipment correctly, and then locking is performed. This method is not conducive to the rapid maintenance and fault replacement of equipment. It is even more unsuitable for the integration, miniaturization and rapidity requirements of weapons and equipment. Summary of the invention

[0003] In view of this, the present application provides a pull-off separation structure with positioning and locking, which solves the problems in the prior art and improves the convenience of locking and separation of the locking structure.

[0004] The present application provides a pull-off separation structure with positioning and locking, which adopts the following technical solution:

[0005] A pull-off separation structure with positioning and locking, comprising an inner shaft, an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged on the outer periphery of the inner shaft, and the outer sleeve is arranged on the outer periphery of the inner sleeve;

[0006] The inner shaft comprises a first section and a second section which are connected to each other, the inner sleeve is arranged on the outer periphery of the second section, a plurality of hollow grooves are arranged on the side wall of the inner sleeve, and the plurality of hollow grooves are spaced apart along the circumference of the inner sleeve, an elastic sheet is arranged in the hollow groove, one end of the elastic sheet is connected to a side of the hollow groove away from the second section, a protrusion structure is arranged on the outer wall of an end of the elastic sheet close to the first section, and the protrusion height of the elastic sheet gradually increases from an end close to the first section to a direction away from the first section, the second section comprises a straight section and a tapered section, the small diameter end of the tapered section is connected to the first section, the tapered section is connected to the large diameter section and the straight section, and the tapered section corresponds to the elastic sheet;

[0007] A through hole for the protrusion structure to pass through is provided on the side wall of the outer sleeve, the outer diameter of the outer sleeve is consistent with the outer diameter of the first section, and the end surface of the inner sleeve close to the first section abuts against the step surface at the connection position between the first section and the second section;

[0008] When the outer sleeve moves relative to the inner sleeve toward the side away from the first section, the outer cylinder moves the elastic sheet toward the side wall of the tapered section along the outer wall surface of the protruding structure until the most protruding position on the protruding structure enters the through hole or the outer sleeve;

[0009] One end of the second section away from the first section is fixedly connected to a connecting rod, and one end of the connecting rod away from the second section is provided with a limit block, which is used to abut against the end surface of the outer sleeve away from the first section, and when the limit block and the outer sleeve abut, the most protruding position on the protruding structure is located in the through hole or in the outer sleeve.

[0010] Optionally, the pull-off separation structure with positioning and locking further includes a pulling rope, and the pulling rope is fixedly connected to the outer jacket.

[0011] Optionally, two opposite protrusions are provided on the outer wall of one end of the sleeve away from the first section, and the protrusions are provided with through holes, and the ends of the pulling rope pass through the through holes, and crimping rings are provided at both ends of the pulling rope, and the crimping rings are used to abut against the side of the through hole facing the first section.

[0012] Optionally, the end of the first section away from the second section is tapered.

[0013] Optionally, a screw is threadedly connected on the end surface of the second section away from the first section, the rod of the screw serves as the connecting rod, the head of the screw serves as the limit block, and the outer diameter of the screw head is greater than the inner diameter of the sleeve.

[0014] Optionally, when the elastic sheet is in a natural state, the elastic sheet gradually tilts from one end connected to the inner sleeve to the other end toward a side away from the axis of the inner sleeve.

[0015] Optionally, the inner sleeve is provided with four hollow grooves evenly distributed along the circumference of the inner sleeve, and the elastic sheet is provided in each of the hollow grooves.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] The locking structure of the present application is equipped with a pull-off separation mechanism, which can quickly lock the two structural parts and quickly unlock them by pulling the outer cover. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 1 This is a schematic diagram of the overall structure of the pull-off separation structure with positioning and locking in the present application;

[0020] Figure 2 This is a schematic diagram of the explosion structure of the present application with a positioning and locking pull-off separation structure;

[0021] Figure 3 This is a cross-sectional view of the pull-off separation structure with positioning and locking of the present application;

[0022] Figure 4 This is a schematic diagram of the structure of the elastic sheet in the natural state of this application.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. inner shaft; 11. first section; 12. second section; 13. tapered section; 14. straight section; 2. inner sleeve; 21. hollow groove; 22. elastic sheet; 23. raised structure; 3. outer sleeve; 31. bump; 32. through hole; 4. connecting rod; 5. limit block; 6. pulling rope; 61. crimping ring; 7. washer. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0026] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0028] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0029] The embodiment of the present application provides a pull-off separation structure with positioning and locking, which is used for locking and separating two structural members, and the two structural members can be plates, components, electrical connectors, etc.

[0030] like Figures 1 to 3 As shown, a pull-off separation structure with positioning and locking includes an inner shaft 1, an inner sleeve 2 and an outer sleeve 3, wherein the inner sleeve 2 is sleeved on the outer periphery of the inner shaft 1, and the outer sleeve 3 is sleeved on the outer periphery of the inner sleeve 2, the inner shaft 1 and the inner sleeve 2 are slidably arranged with respect to each other, and the outer sleeve 3 and the inner sleeve 2 are slidably arranged with respect to each other.

[0031] The inner shaft 1 includes a first section 11 and a second section 12 which are connected to each other. The inner sleeve 2 is sleeved on the outer periphery of the second section 12. A plurality of hollow grooves 21 are provided on the side wall of the inner sleeve 2. The plurality of hollow grooves 21 are spaced apart along the circumference of the inner sleeve 2. An elastic sheet 22 is provided in the hollow groove 21. One end of the elastic sheet 22 is connected to a side of the hollow groove 21 away from the second section 12. A protruding structure 23 is provided on the outer wall of an end of the elastic sheet 22 close to the first section 11. The protruding height of the protruding structure 23 on the elastic sheet 22 along the radial direction of the inner sleeve 2 gradually increases from an end close to the first section 11 to a direction away from the first section 11. The second section 12 includes a straight section 14 and a tapered section 13. The small diameter end of the tapered section 13 is connected to the first section 11. The tapered section 13 is connected to the large diameter section and the straight section 14. The tapered section 13 corresponds to the elastic sheet 22.

[0032] A through hole 32 is provided on the side wall of the outer sleeve 3 for the protruding structure 23 to pass through. The outer diameter of the outer sleeve 3 is consistent with the outer diameter of the first section 11. The outer diameter of the first section 11 is larger than the outer diameter of the second section 12. A step surface is formed at the connection position of the first section 11 and the second section 12. The end surfaces of the outer sleeve 3 and the inner sleeve 2 close to the first section 11 abut against the step surface at the connection position of the first section 11 and the second section 12, that is, the inner sleeve 2 and the outer sleeve 3 both abut against the end surface of the first section 11; when the outer sleeve 3 moves relative to the inner sleeve 2 to the side away from the first section 11, the outer cylinder moves the elastic sheet 22 to the side of the conical section 13 along the outer wall surface of the protruding structure 23. The walls are brought closer together until the most protruding position on the protruding structure 23 enters the through hole 32 or the outer sleeve 3; the end of the second section 12 away from the first section 11 is fixedly connected to the connecting rod 4, and the end of the connecting rod 4 away from the second section 12 is provided with a limit block 5, and the limit block 5 is used to abut the end face of the outer sleeve 3 away from the first section 11, and when the limit block 5 and the outer sleeve 3 abut, the most protruding position on the protruding structure 23 is located in the through hole 32 or the outer sleeve 3, wherein the most protruding position on the protruding structure 23 is understood to be the position where the protruding height of the protruding structure is the largest in the radial direction of the inner sleeve 2, that is, the side of the protruding structure 23 away from the first section 11.

[0033] In one embodiment, the positioning and locking pull-off separation structure of the present application is fixed on the first structural member, and the second structural member is provided with a hole for the first section 11 of the inner shaft 1 and the outer sleeve 3 to pass through, and a ring stage cooperating with the protruding structure 23 is provided in the hole, and the end surface of the protruding structure 23 away from the first section 11 is used to clamp with the ring stage in the hole of the second structural member. In one embodiment, the end of the inner sleeve 2 away from the first section 11 of the positioning and locking pull-off separation structure extends out of the outer sleeve 3 for fixed connection with the first structural member. In other embodiments, a limiting boss can also be provided on the side wall of the outer sleeve 3, and a hole for the first section 11 of the inner shaft 1 and the outer sleeve 3 to pass through can be provided on the first structural member. The protruding structure 23 and the limiting boss clamp the ring stage of the second structural member and the first structural member to achieve locking of the two structural members. In other embodiments, the ring stage may not be provided in the hole of the second structural member, and the end surface of the protruding structure 23 can directly abut the end surface of the second structural member facing away from the first structural member.

[0034] The positioning locking pull-off separation structure of the present application is explained by taking the locking state as an example in which the protruding structure 23 and the limiting boss clamp the annular platform of the second structural member and the first structural member. When the two structural members need to be locked, the first section 11 of the inner shaft 1 passes through the hole of the first structural member and enters the hole of the second structural member. The protruding structure 23 is compressed by the annular platform in the hole of the second structural member, and the elastic sheet 22 moves toward the conical section 13. The protruding structure 23 passes over the annular platform, and the end face of the protruding structure 23 away from the second section 12 abuts against the end face of the annular platform. At the same time, the limiting boss on the sleeve abuts against the end face of the first structural member away from the second structural member, thereby achieving locking of the first structural member and the second structural member.

[0035] When separation is required, the outer sleeve 3 is pulled toward the side away from the first section 11, and the edge of the through hole 32 on the outer cylinder squeezes the protruding structure 23, and the elastic sheet 22 is squeezed toward the tapered section 13. When the protruding structure 23 completely enters the through hole 32 or enters the outer sleeve 3, that is, the protruding structure 23 does not protrude from the outer sleeve 3, until the outer sleeve 3 abuts against the limit block 5, and the outer sleeve 3 is continued to be pulled, which can drive the outer sleeve 3 and the inner shaft 1 to move at the same time. At the same time, since the end face of the inner sleeve 2 close to the first section 11 abuts against the step surface at the connection position of the first section 11 and the second section 12, the inner shaft 1 drives the inner sleeve 2 to move, so that the outer sleeve 3, the inner shaft 1 and the inner sleeve 2 can be pulled out of the holes of the first structural member and the second structural member together, and the first structural member and the second structural member can be separated.

[0036] The pull-off separation structure with positioning and locking also includes a pulling rope 6, and the pulling rope 6 is fixedly connected to the outer sleeve 3. Two opposite protrusions 31 are provided on the outer wall of the end of the outer sleeve 3 away from the first section 11, and the protrusions 31 are provided with through holes, and the ends of the pulling rope 6 pass through the through holes, and the two ends of the pulling rope 6 are provided with crimping rings 61, and the crimping rings 61 are used to abut against the side of the through holes facing the first section 11. In one embodiment, the pulling rope 6 is a steel wire rope, and the crimping ring 61 is crimped on the end of the steel wire rope. Among them, the protrusions 31 also serve as the above-mentioned limit platform in the embodiment of the present application.

[0037] The end of the first section 11 away from the second section 12 is tapered, which facilitates blind insertion of the pull-off separation structure for positioning and locking. When locking the two structural members, the tapered first section 11 can quickly enter the holes of the first structural member and the second structural member.

[0038] A screw is threadedly connected on the end surface of the second section 12 away from the first section 11, the shank of the screw serves as the connecting rod 4, the head of the screw serves as the stop block 5, and the outer diameter of the screw head is greater than the inner diameter of the sleeve 3. The shank of the screw is provided with an annular groove at the outer periphery of the end near the head, and a washer 7 is clamped in the annular groove.

[0039] like Figure 4 As shown, when the elastic sheet 22 is in a natural state, the elastic sheet 22 gradually tilts from one end connected to the inner sleeve 2 to the other end toward a side away from the axis of the inner sleeve 2. This allows the protruding structure 23 to have sufficient outward force to ensure the matching and clamping of the protruding structure 23 and the inner ring of the second structural member.

[0040] The inner sleeve 2 is provided with four hollow grooves 21 evenly distributed along the circumference of the inner sleeve 2 , and each of the hollow grooves 21 is provided with the elastic sheet 22 .

[0041] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A pull-off separation structure with positioning and locking, characterized in that: It comprises an inner shaft (1), an inner sleeve (2) and an outer sleeve (3), wherein the inner sleeve (2) is arranged on the outer circumference of the inner shaft (1), and the outer sleeve (3) is arranged on the outer circumference of the inner sleeve (2); The inner shaft (1) comprises a first section (11) and a second section (12) connected to each other, the inner sleeve (2) is sleeved on the outer circumference of the second section (12), a plurality of hollow grooves (21) are arranged on the side wall of the inner sleeve (2), the plurality of hollow grooves (21) are spaced apart along the circumference of the inner sleeve (2), an elastic sheet (22) is arranged in the hollow groove (21), one end of the elastic sheet (22) is connected to a side of the hollow groove (21) away from the second section (12), and the elastic sheet (22) is close to the first section (11). ) is provided with a protruding structure (23) on the outer wall of one end of the elastic sheet (22), the protruding height of the protruding structure (23) gradually increases from the end close to the first section (11) to the direction away from the first section (11), the second section (12) comprises a straight section (14) and a tapered section (13), the small diameter end of the tapered section (13) is connected to the first section (11), the tapered section (13) is connected to the large diameter section and the straight section (14), and the tapered section (13) corresponds to the elastic sheet (22); A through hole (32) is provided on the side wall of the outer sleeve (3) for the protruding structure (23) to pass through; the outer diameter of the outer sleeve (3) is consistent with the outer diameter of the first section (11); and the end surface of the inner sleeve (2) close to the first section (11) abuts against the step surface at the connection position between the first section (11) and the second section (12); When the outer sleeve (3) moves relative to the inner sleeve (2) toward the side away from the first section (11), the outer cylinder moves the elastic sheet (22) toward the side wall of the tapered section (13) along the outer wall surface of the protruding structure (23) until the most protruding position on the protruding structure (23) enters the through hole (32) or the outer sleeve (3); The end of the second section (12) away from the first section (11) is fixedly connected to the connecting rod (4), and the end of the connecting rod (4) away from the second section (12) is provided with a limit block (5), and the limit block (5) is used to abut against the end surface of the outer sleeve (3) away from the first section (11), and when the limit block (5) and the outer sleeve (3) are in abutment, the most protruding position on the protruding structure (23) is located in the through hole (32) or in the outer sleeve (3).

2. The pull-off separation structure with positioning and locking according to claim 1, characterized in that: The pull-off separation structure with positioning and locking further comprises a pulling rope (6), wherein the pulling rope (6) and the outer shell (3) are fixedly connected.

3. The pull-off separation structure with positioning and locking according to claim 2, characterized in that: Two opposite protrusions (31) are provided on the outer wall of one end of the outer sleeve (3) away from the first section (11), and the protrusions (31) are provided with through holes, and the ends of the pulling rope (6) pass through the through holes, and crimping rings (61) are provided at both ends of the pulling rope (6), and the crimping rings (61) are used to abut against the side of the through hole facing the first section (11).

4. The pull-off separation structure with positioning and locking according to claim 1, characterized in that: The end of the first section (11) away from the second section (12) is tapered.

5. The pull-off separation structure with positioning and locking according to claim 1, characterized in that: A screw is threadedly connected on the end surface of the second section (12) away from the first section (11), the rod of the screw serves as the connecting rod (4), the head of the screw serves as the limit block (5), and the outer diameter of the screw head is greater than the inner diameter of the outer sleeve (3).

6. The pull-off separation structure with positioning and locking according to claim 1, characterized in that: When the elastic sheet (22) is in a natural state, the elastic sheet (22) gradually tilts from one end connected to the inner sleeve (2) to the other end toward a side away from the axis of the inner sleeve (2).

7. The pull-off separation structure with positioning and locking according to claim 1, characterized in that: The inner sleeve (2) is provided with four hollow grooves (21) evenly distributed along the circumference of the inner sleeve (2), and each of the hollow grooves (21) is provided with the elastic sheet (22).

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