Pull-out separation structure with positioning locking

Abstract

The application provides a pull-off separation structure with positioning locking, and belongs to the technical field of locking mechanisms. Specifically, the pull-off separation structure comprises an inner shaft, an inner sleeve and an outer sleeve. 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. The inner shaft comprises a first section and a second section which are connected to each other. A plurality of hollow grooves are arranged on the side wall of the inner sleeve and are distributed in a circumferential direction of the inner sleeve. An elastic sheet is arranged in each hollow groove. A protruding structure is arranged on the outer wall of one end of the elastic sheet close to the first section. A through hole is arranged on the side wall of the outer sleeve and is used for allowing the protruding structure to pass through. When the outer sleeve moves away from the first section relative to the inner sleeve, the outer sleeve moves the elastic sheet along the outer wall surface of the protruding structure to the side wall of the tapered section until the most protruding position of the protruding structure enters the through hole or the inner sleeve. Through the processing scheme, the convenience of locking and separation of the locking structure is improved.

Description

Technical Field

[0001] This application relates to the field of locking mechanisms, and more particularly to a pull-out separation structure with positioning locking. Background Technology

[0002] Auxiliary positioning components and locking / separation components are widely used for docking and separation between equipment in testing equipment, aviation, aerospace, and shipbuilding. Early positioning and locking functions were implemented separately by two components, occupying structural space and requiring multiple steps to achieve these functions. First, auxiliary positioning was needed to guide the equipment correctly, and then locking was performed. This method is not conducive to rapid equipment maintenance and fault replacement. Furthermore, it is ill-suited to the requirements of integrated, miniaturized, and rapid deployment of weaponry and equipment. Summary of the Invention

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

[0004] The pull-out separation structure with positioning and locking provided in this application adopts the following technical solution:

[0005] A pull-out separation structure with positioning and locking includes an inner shaft, an inner sleeve, and an outer sleeve, wherein the inner sleeve is fitted around the outer periphery of the inner shaft, and the outer sleeve is fitted around the outer periphery of the inner sleeve.

[0006] The inner shaft includes a first section and a second section connected to each other. The inner sleeve is fitted around the outer periphery of the second section. The inner sleeve has multiple hollow grooves on its sidewalls, which are spaced apart along the circumference of the inner sleeve. An elastic sheet is provided in each hollow groove. One end of the elastic sheet is connected to the side of the hollow groove away from the second section. The outer wall of the elastic sheet near the first section has a protrusion structure. The protrusion height of the elastic sheet gradually increases from the end near the first section to the side away from the first section. The second section includes a straight section and a tapered section. The small diameter end of the tapered section is connected to the first section, and the large diameter section is connected to the straight section. The tapered section corresponds to the elastic sheet.

[0007] The outer sleeve has a through hole on its side wall for the protruding structure to pass through. The outer diameter of the outer sleeve is the same as the outer diameter of the first section. The end face of the inner sleeve near the first section abuts against the stepped surface at the connection position of the first section and the second section.

[0008] When the outer sleeve moves away from the first section relative to the inner sleeve, the outer cylinder moves the elastic sheet towards the side wall of the conical 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] The second segment is fixedly connected to a connecting rod at the end away from the first segment. A limiting block is provided at the end of the connecting rod away from the second segment. The limiting block is used to abut against the end face of the outer sleeve away from the first segment. When the limiting block and the outer sleeve abut against each other, the most protruding position on the protruding structure is located inside the through hole or inside the outer sleeve.

[0010] Optionally, the pull-out separation structure with positioning and locking also includes a pull rope, which is fixedly connected to the outer casing.

[0011] Optionally, the outer wall of the outer jacket at the end away from the first segment is provided with two opposing protrusions, each protrusion having a through hole through which the end of the pull rope passes, and both ends of the pull rope are provided with crimping rings, which are used to abut against the side of the through hole facing the first segment.

[0012] Optionally, the end of the first segment furthest from the second segment is tapered.

[0013] Optionally, a screw is threaded onto the end face of the second segment away from the first segment, the shank of the screw serving as the connecting rod, the head of the screw serving as the limiting block, and the outer diameter of the screw head being larger than the inner diameter of the outer sleeve.

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

[0015] Optionally, the inner sleeve is provided with four hollowed-out grooves evenly distributed along the circumference of the inner sleeve, and each hollowed-out groove is provided with the elastic sheet.

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

[0017] The locking structure of this application has a built-in pull-out separation mechanism, which enables the two structural components to be locked quickly while the outer casing is pulled to unlock them quickly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0020] Figure 2 This is an exploded structural diagram of the pull-out separation structure with positioning and locking in this application;

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

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

[0023] Explanation of reference numerals in the attached drawings: 1. Inner shaft; 11. First section; 12. Second section; 13. Conical section; 14. Straight section; 2. Inner sleeve; 21. Hollowed-out groove; 22. Elastic sheet; 23. Protruding structure; 3. Outer sleeve; 31. Protrusion; 32. Through hole; 4. Connecting rod; 5. Limiting block; 6. Pull rope; 61. Crimping ring; 7. Washer. Detailed Implementation

[0024] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0025] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one 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 set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

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

[0029] This application provides a pull-out separation structure with positioning and locking. It is used for locking and separating two structural components, which can be boards, components, electrical connectors, etc.

[0030] like Figures 1 to 3 As shown, a pull-out separation structure with positioning and locking includes an inner shaft 1, an inner sleeve 2, and an outer sleeve 3. The inner sleeve 2 is fitted around the outer periphery of the inner shaft 1, and the outer sleeve 3 is fitted around the outer periphery of the inner sleeve 2. The inner shaft 1 and the inner sleeve 2 are slidably arranged relative to each other, and the outer sleeve 3 and the inner sleeve 2 are slidably arranged relative to each other.

[0031] The inner shaft 1 includes a first segment 11 and a second segment 12 connected to each other. The inner sleeve 2 is fitted around the outer periphery of the second segment 12. The side wall of the inner sleeve 2 is provided with a plurality of hollow grooves 21, which are distributed at intervals 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 the side of the hollow groove 21 away from the second segment 12. The outer wall of the elastic sheet 22 near the first segment 11 is provided with a protrusion structure 23. The protrusion height of the protrusion structure 23 along the radial direction of the inner sleeve 2 gradually increases from the end near the first segment 11 to the end away from the first segment 11. The second segment 12 includes a straight segment 14 and a tapered segment 13. The small diameter end of the tapered segment 13 is connected to the first segment 11. The tapered segment 13 is connected to the large diameter segment and the straight segment 14. The tapered segment 13 corresponds to the elastic sheet 22.

[0032] The outer sleeve 3 has a through hole 32 on its side wall for the protruding structure 23 to pass through. The outer diameter of the outer sleeve 3 is the same as the outer diameter of the first segment 11. The outer diameter of the first segment 11 is larger than the outer diameter of the second segment 12. The connection position of the first segment 11 and the second segment 12 forms a stepped surface. The end faces of the outer sleeve 3 and the inner sleeve 2 near the first segment 11 abut against the stepped surface at the connection position of the first segment 11 and the second segment 12. That is, both the inner sleeve 2 and the outer sleeve 3 abut against the end face of the first segment 11. When the outer sleeve 3 moves away from the first segment 11 relative to the inner sleeve 2, the outer sleeve pushes the elastic sheet 22 towards the side of the tapered segment 13 along the outer wall surface of the protruding structure 23. The walls are brought together until the most protruding part of the protruding structure 23 enters the through hole 32 or the outer sleeve 3; the end of the second segment 12 away from the first segment 11 is fixedly connected to the connecting rod 4, and the end of the connecting rod 4 away from the second segment 12 is provided with a limiting block 5. The limiting block 5 is used to abut against the end face of the outer sleeve 3 away from the first segment 11, and when the limiting block 5 and the outer sleeve 3 abut against each other, the most protruding part of the protruding structure 23 is located in the through hole 32 or the outer sleeve 3. The most protruding part of the protruding structure 23 is understood to be the position where the protruding structure has the largest protrusion height along the radial direction of the inner sleeve 2, that is, the side of the protruding structure 23 away from the first segment 11.

[0033] In one embodiment, the positioning and locking pull-out separation structure of this application is fixed to the first structural member. The second structural member has a hole through which the first section 11 of the inner shaft 1 and the outer sleeve 3 pass. The hole has an annular platform that mates with the protruding structure 23. The end face of the protruding structure 23 away from the first section 11 is used to engage with the annular platform in the hole of the second structural member. In one embodiment, the end of the inner sleeve 2 of the positioning and locking pull-out separation structure away from the first section 11 extends out of the outer sleeve 3 for fixed connection with the first structural member. In other embodiments, a limiting boss can be provided on the side wall of the outer sleeve 3, and a hole through which the first section 11 of the inner shaft 1 and the outer sleeve 3 pass can be provided on the first structural member. The protruding structure 23 and the limiting boss lock the annular platform of the second structural member and the first structural member, thereby locking the two structural members. In other embodiments, the annular platform may not be provided in the hole of the second structural member, and the end face of the protruding structure 23 can directly abut against the end face of the second structural member opposite to the first structural member.

[0034] Taking the locking pull-out separation structure of this application as an example where the protruding structure 23 and the limiting boss clamp the ring platform of the second structural member and the first structural member in the locked state, the positioning and locking pull-out separation structure of this application is explained. When it is necessary to lock the two structural members, 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 ring platform in the hole of the second structural member. The elastic sheet 22 moves closer to the tapered section 13. The protruding structure 23 crosses the ring platform. The end face of the protruding structure 23 away from the second section 12 abuts against the end face of the ring platform. At the same time, the limiting boss and the end face of the first structural member away from the second structural member abut against each other, thereby realizing the locking of the first structural member and the second structural member.

[0035] When separation is required, pull the outer sleeve 3 away from the first segment 11. The edge of the through hole 32 on the outer cylinder squeezes the protruding structure 23, and the elastic sheet 22 is squeezed towards the tapered segment 13. When the protruding structure 23 is fully inserted into the through hole 32 or into the outer sleeve 3, that is, when the protruding structure 23 does not protrude out of the outer sleeve 3, until the outer sleeve 3 abuts against the limiting block 5, continue to pull the outer sleeve 3. This can simultaneously drive the outer sleeve 3 and the inner shaft 1 to move. At the same time, since the end face of the inner sleeve 2 near the first segment 11 abuts against the stepped surface at the connection position of the first segment 11 and the second segment 12, the inner shaft 1 drives the inner sleeve 2 to move. Thus, the outer sleeve 3, the inner shaft 1, and the inner sleeve 2 can be pulled out of the holes of the first structural component and the second structural component together, and the first structural component and the second structural component can be separated.

[0036] The pull-out separation structure with positioning and locking also includes a pull rope 6, which is fixedly connected to the outer sleeve 3. The outer sleeve 3 has two opposing protrusions 31 on its outer wall at the end furthest from the first segment 11. Each protrusion 31 has a through hole through which the end of the pull rope 6 passes. Both ends of the pull rope 6 have crimping rings 61, which abut against the side of the through hole facing the first segment 11. In one embodiment, the pull rope 6 is a steel wire rope, and the crimping rings 61 are crimped onto the ends of the steel wire rope. The protrusions 31 also serve as the limiting platform described above in this embodiment.

[0037] The end of the first segment 11 furthest from the second segment 12 is tapered. This blind insertion design facilitates positioning and locking of the pull-out separation structure. When locking the two structural members, the tapered first segment 11 can quickly enter the holes of the first and second structural members.

[0038] A screw is threaded onto the end face of the second segment 12 away from the first segment 11. The shank of the screw serves as the connecting rod 4, and the head of the screw serves as the limiting block 5. The outer diameter of the screw head is larger than the inner diameter of the outer sleeve 3. An annular groove is provided on the outer circumference of the shank near the head, and a washer 7 is engaged in the annular groove.

[0039] like Figure 4 As shown, in its natural state, the elastic sheet 22 gradually tilts away from the axis of the inner sleeve 2 from one end connected to the inner sleeve 2. This ensures that the protruding structure 23 has sufficient outward force, guaranteeing the proper engagement of the protruding structure 23 and the inner ring platform of the second structural member.

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

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pull-out separation structure with positioning and locking, characterized in that, It includes an inner shaft (1), an inner sleeve (2) and an outer sleeve (3), wherein the inner sleeve (2) is fitted around the outer periphery of the inner shaft (1) and the outer sleeve (3) is fitted around the outer periphery of the inner sleeve (2); The inner shaft (1) includes a first section (11) and a second section (12) connected to each other. The inner sleeve (2) is fitted around the outer periphery of the second section (12). The side wall of the inner sleeve (2) is provided with a plurality of hollow grooves (21), which are spaced apart along the circumference of the inner sleeve (2). An elastic piece (22) is provided in the hollow groove (21). One end of the elastic piece (22) is connected to the side of the hollow groove (21) away from the second section (12). The elastic piece (22) is close to the first section (11). The outer wall of one end of the elastic sheet (22) is provided with a protrusion structure (23). The protrusion structure (23) gradually increases in height from the end near the first segment (11) to the end away from the first segment (11). The second segment (12) includes a straight segment (14) and a tapered segment (13). The small diameter end of the tapered segment (13) is connected to the first segment (11). The tapered segment (13) is connected to the large diameter segment and the straight segment (14). The tapered segment (13) corresponds to the elastic sheet (22). The outer sleeve (3) has a through hole (32) on its side wall for the protruding structure (23) to pass through. The outer diameter of the outer sleeve (3) is the same as the outer diameter of the first section (11). The end face of the inner sleeve (2) near the first section (11) abuts against the stepped surface at the connection position of the first section (11) and the second section (12). When the outer sleeve (3) moves away from the inner sleeve (2) to the side away from the first segment (11), the outer sleeve (3) moves the elastic sheet (22) towards the side wall of the tapered segment (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 second segment (12) is fixedly connected to the connecting rod (4) at the end away from the first segment (11). The connecting rod (4) is provided with a limiting block (5) at the end away from the second segment (12). The limiting block (5) is used to abut against the end face of the outer sleeve (3) away from the first segment (11). When the limiting block (5) and the outer sleeve (3) abut against each other, the most protruding position on the protruding structure (23) is located inside the through hole (32) or inside the outer sleeve (3). The pull-out separation structure with positioning and locking also includes a pull rope (6), which is fixedly connected to the outer jacket (3); The outer wall of the outer jacket (3) away from the first segment (11) has two opposing protrusions (31), and the protrusions (31) have through holes. The end of the pulling rope (6) passes through the through holes, and the two ends of the pulling rope (6) are provided with crimping rings (61). The crimping rings (61) are used to abut against the side of the through holes facing the first segment (11). A screw is threaded on the end face of the second segment (12) away from the first segment (11). The shank of the screw serves as the connecting rod (4), and the head of the screw serves as the limiting block (5). The outer diameter of the screw head is larger than the inner diameter of the outer sleeve (3). In its natural state, the elastic sheet (22) gradually tilts away from the axis of the inner sleeve (2) from one end connected to the inner sleeve (2) to the other end; The end of the first segment (11) away from the second segment (12) is tapered; The inner sleeve (2) is provided with four hollowed-out grooves (21) evenly distributed along the circumference of the inner sleeve (2), and each hollowed-out groove (21) is provided with the elastic sheet (22).

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