A pull-out aid

Abstract

The present invention provides an auxiliary puller, which relates to the technical field of chassis equipment, and solves the technical problems that the self-locking component is independent of the auxiliary puller body, occupies a large space and is complicated to install. The device includes an auxiliary puller, including an auxiliary puller block, an auxiliary puller body, an auxiliary puller card block and a compression spring. The bottom of the auxiliary puller body is rotatably connected to the auxiliary puller block. The auxiliary puller body is provided with a receiving cavity. The auxiliary puller card block can be rotatably arranged in the receiving cavity, and the compression spring is located on the bottom side of the auxiliary puller card block. The auxiliary puller card block and the compression spring are both reasonably arranged inside the auxiliary puller body, which greatly saves the occupied space; the self-locking action can be automatically completed after the auxiliary puller body reaches the limit position, and the unlocking can be completed instantly by pressing the head of the auxiliary puller card block. The operation is simple and clear, and can be completed with one hand, which simplifies the operation and is very convenient.

Description

Technical Field

[0001] The invention relates to the technical field of chassis equipment, in particular to a self-locking pull-out aid. Background Art

[0002] As we all know, various types of chassis equipment are widely used in many fields such as communications and electronics. When connecting single boards and backplanes (usually circuit boards) in these chassis equipment, the connection method generally adopted is single board docking. However, this connection method has certain resistance, and the plugging and unplugging force is large, which is difficult to operate with bare hands. In order to facilitate the operation, an auxiliary puller is needed.

[0003] With the development of electronic technology, the requirements for electronic equipment are getting higher and higher. If the puller becomes loose during use, it will affect the transmission of signals and the equipment will not work properly. Therefore, a self-locking puller has appeared to make up for the unreliability of single-board docking during work.

[0004] The applicant has found that the prior art has at least the following technical problems:

[0005] The self-locking components of current pull-out aids with self-locking functions are generally independent components, which take up a large space, are complicated to install, and are troublesome to operate. Moreover, when completing the self-locking action, it cannot be operated with one hand, which is not convenient enough. When unlocking, it cannot be completed instantly, which is not convenient enough. Summary of the invention

[0006] The purpose of the present invention is to provide an auxiliary puller with a self-locking mechanism arranged inside the auxiliary puller body, so as to solve the technical problems existing in the prior art that the self-locking component is independent of the auxiliary puller body, occupies a large space and is complicated to install. The various technical effects that can be produced by the preferred technical solution among the various technical solutions provided by the present invention are described in detail below.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides an auxiliary pulling device, comprising:

[0009] An auxiliary pull-out block is fixedly connected to the single board to fix the auxiliary pull-out device on the single board;

[0010] An auxiliary pulling body, the bottom of which is rotatably connected to the auxiliary pulling block, and an accommodating cavity is provided on the auxiliary pulling body;

[0011] An auxiliary pull-out card block is rotatably arranged in the accommodating cavity, and the head of the auxiliary pull-out card block extends out of the top of the accommodating cavity; a hook is arranged at the bottom end of the auxiliary pull-out card block, and a clamping platform is arranged at the top end of the auxiliary pull-out block, and when the auxiliary pull-out card block rotates to the engaging position with the auxiliary pull-out body, the hook is engaged with the clamping platform, thereby realizing the self-locking of the auxiliary pull-out device; a blind hole is opened on the bottom surface of the accommodating cavity, and the blind hole is located below the head of the auxiliary pull-out card block;

[0012] A compression spring is arranged in the blind hole, and the top of the compression spring abuts against the bottom surface of the head of the auxiliary ejection block; when the head of the auxiliary ejection block is pressed, the auxiliary ejection block rotates, the hook is separated from the card platform, and the self-locking is released.

[0013] The auxiliary pull-out block and the compression spring are both reasonably arranged inside the auxiliary pull-out body, which greatly saves space. The self-locking action can be automatically completed after the auxiliary pull-out body reaches the limit position, and the unlocking can be completed instantly by pressing the head of the auxiliary pull-out block. The operation is simple and clear and can be completed with one hand, which simplifies the operation and is very convenient.

[0014] Optionally, the auxiliary extraction body includes a first body and a second body, the first body and the second body are detachably fixedly connected, the accommodating cavity is opened on the second body, the auxiliary extraction block is rotatably arranged in the accommodating cavity, and the second body is rotatably connected to the auxiliary extraction block.

[0015] The auxiliary pull-out body is arranged in a split type, and the first body can be removed from the auxiliary pull-out body, which saves space and is suitable for occasions with small installation space.

[0016] Optionally, the extraction aid further includes a left press block and a right press block, the left press block and the right press block are respectively buckled on both sides of the extraction aid body, and the first end of the left press block is fixedly connected to the first body, and the second end of the left press block is fixedly connected to the second body; the first end of the right press block is fixedly connected to the first body, and the second end of the right press block is fixedly connected to the second body, and the first body and the second body are connected through the left press block and the right press block.

[0017] After the installation of the auxiliary puller is completed, the left pressing block and the right pressing block installed on both sides of the auxiliary puller body can be pressed simultaneously to quickly remove the first body, thereby saving space.

[0018] Optionally, the first end of the left button block and the first end of the right button block are both rotatably fixed to the first body via a rotating shaft.

[0019] This rotation method has the advantages of simple structure and convenient operation.

[0020] Optionally, a clamping claw is disposed on the second end of the left pressing block and the second end of the right pressing block, and a clamping slot is disposed on the left and right sides of the second body, and the clamping claw and the clamping slot are cooperatively connected.

[0021] The first end of the left push block and the first end of the right push block rotate around the rotating shaft, so that the claws on the second ends of the left push block and the right push block are clamped with the clamping grooves on the second body, completing the connection between the first body and the second body.

[0022] Optionally, a spring hole is provided on the first body, a push block spring is arranged in the spring hole, and two ends of the push block spring are respectively against the left push block and the right push block.

[0023] If the first body is to be separated from the second body, the left and right blocks are pressed simultaneously, the claws and the slots are disengaged, the left and right blocks are quickly separated from the second body, and the first body can be easily removed.

[0024] Optionally, a limiting protrusion is provided at one end of the first body connected to the second body, and a limiting hole is correspondingly provided on the second body, and the limiting protrusion is matched with the limiting hole.

[0025] In the split structure, when installing the first body and the second body, the limit protrusion can play a guiding and limiting role, conveniently positioning the first body and the second body, and facilitating assembly. The limit protrusion and the limit hole matched with it can also be designed as an anti-reverse installation structure, which can only be installed from one direction, and the guiding role is obvious.

[0026] Optionally, the ejection aid further comprises a cover plate, which covers one side of the accommodating cavity to limit the ejection aid card block in the accommodating cavity. The card block rotation shaft passes through the mounting hole on the cover plate and is fixedly connected to the ejection aid body.

[0027] The cover plate restricts the ejection-assisting card block within the accommodating cavity, and the structure is stable and convenient for disassembly and assembly. Only the head of the ejection-assisting card block protrudes out of the accommodating cavity, which is convenient for pressing.

[0028] Optionally, the pulling aid also includes a torsion spring, which is arranged between the pulling aid body and the pulling aid block. A fixing groove is provided on the side of the pulling aid body, and an installation groove is provided on the inner side wall of the pulling aid block. The fixed end of the torsion spring is provided in the fixing groove, and the movable end of the torsion spring is provided in the installation groove.

[0029] The rebound force of the torsion spring is utilized to realize rapid reset of the auxiliary puller body after releasing the self-locking.

[0030] Optionally, an anti-slip pressure block is provided on the upper side of the head of the auxiliary ejection block.

[0031] Setting an anti-slip layer increases friction resistance, facilitates pressing, and enables the unlocking action to be completed quickly.

[0032] The present invention provides an auxiliary puller, in which the auxiliary puller block and the compression spring are reasonably arranged inside the auxiliary puller body, which greatly saves the occupied space; the self-locking action can be automatically completed after the auxiliary puller body reaches the limit position, and the unlocking can be completed by pressing the head of the auxiliary puller block, the operation is simple and clear, and can be completed with one hand, which saves labor and simplifies the operation; the overall structure of the auxiliary puller is integrated, and after the external separate assembly is completed, it only needs a simple screw connection to be firmly connected with the single board, the installation is simple and quick, and can be quickly completed by one person; all components of the auxiliary puller can be produced by molds, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a schematic diagram of the connection between the extraction aid and the single board;

[0035] Figure 2 It is a structural schematic diagram of an auxiliary puller in which the auxiliary puller body is an integrated type;

[0036] Figure 3 yes Figure 2 Schematic diagram of the structure of the middle auxiliary extraction body;

[0037] Figure 4 yes Figure 2 Schematic diagram of the structure of the middle cover;

[0038] Figure 5 This is a structural diagram of the auxiliary card block;

[0039] Figure 6 It is a structural schematic diagram of the pull-out aid block;

[0040] Figure 7 yes Figure 6 A schematic diagram of the structure of the pull-out aid block from another perspective;

[0041] Figure 8 It is a schematic diagram of the exploded structure of an auxiliary puller in which the auxiliary puller body is a split type;

[0042] Fig. 9 is a schematic diagram of the structure of the first body;

[0043] Fig.10 is a schematic diagram of the structure of the second body;

[0044] Fig.11 yes Figure 8 Schematic diagram of the structure of the middle cover;

[0045] Fig.12 It is a schematic diagram of the structure of the left-press block;

[0046] Fig.13 It is a schematic diagram of the structure of the right button block.

[0047] In the figure, 1 is the first body; 2, the pressing block spring; 3, the left pressing block; 31, the claw; 4, the cover plate; 5, the clamping block shaft; 6, the body shaft; 7, the auxiliary pull-out block; 71, the clamping table; 8, the torsion spring; 9, the second body; 10, the auxiliary pull-out block; 101, the hook; 102, the anti-slip pressure block; 11, the compression spring; 12, the right pressing block; 13, the single board; 14, the auxiliary pull-out device body; 15, the blind hole; 16, the limiting protrusion. DETAILED DESCRIPTION

[0048] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0049] The present invention provides a pulling aid, comprising:

[0050] The pull-out aid block 7 is fixedly connected to the single board 13 to fix the pull-out aid on the single board 13;

[0051] The auxiliary extraction body has a bottom which is rotatably connected to the auxiliary extraction block 7, and a receiving cavity is provided on the auxiliary extraction body;

[0052] The auxiliary pull-out block 10 is rotatably arranged in the accommodating cavity, and the head of the auxiliary pull-out block 10 extends out of the top of the accommodating cavity; a hook 101 is arranged at the bottom end of the auxiliary pull-out block 10, and a clamping platform 71 is arranged at the top of the auxiliary pull-out block 7. When the auxiliary pull-out block 10 rotates to the engaging position with the auxiliary pull-out body, the hook 101 is engaged with the clamping platform 71, thereby realizing the self-locking of the auxiliary pull-out device; a blind hole 15 is opened on the bottom surface of the accommodating cavity, and the blind hole 15 is located below the head of the auxiliary pull-out block 10;

[0053] The compression spring 11 is arranged in the blind hole 15, and the top of the compression spring 11 abuts against the bottom surface of the head of the auxiliary ejection block 10; when the head of the auxiliary ejection block 10 is pressed, the auxiliary ejection block 10 rotates, the hook 101 disengages from the card platform 71, and the self-locking is released.

[0054] The auxiliary pull-out block 10 and the compression spring 11 are both reasonably arranged in the accommodating cavity inside the auxiliary pull-out body, which greatly saves the occupied space; the self-locking action can be automatically completed after the auxiliary pull-out body reaches the limit position, and the unlocking can be completed instantly by pressing the head of the auxiliary pull-out block 10. The operation is simple and clear, and can be completed with one hand, which simplifies the operation and is very convenient.

[0055] Figure 1 The figure shows the assembly diagram of the pull-out aid and the single board 13. The pull-out aid block 7 is fixed to the single board 13 by screws. When the pull-out aid body is pressed, the pull-out aid body rotates around the main body rotation axis 6. When it reaches the limit position, the hook 101 at the bottom of the pull-out aid block 10 cooperates with the base 71 at the top of the pull-out aid block 7 to complete self-locking. Press the head of the pull-out aid block 10 to rotate the pull-out aid block 10 around the pull-out aid block 10 rotation axis 5 to unlock it. The whole process can be operated with one hand, which is very convenient.

[0056] When installing the single board 13, you only need to press the auxiliary extraction body. When the self-locking is completed, the boss at the bottom of the auxiliary extraction body 14 and the edge of the back plate of the box are locked. At this time, you can loosen the auxiliary extraction body and install the fastening screws of the box. When taking out the single board 13, first remove the fastening screws between the single board 13 and the back plate of the box, press the head of the auxiliary extraction block 10, and the hook 101 and the clamping platform 71 are separated. The reserved hole at the bottom of the single board 13 can be installed with a spring to make it pop up automatically, thereby simplifying the installation and removal process.

[0057] The pull-out aid body can be of two types: integrated and split, which are suitable for different working occasions.

[0058] Embodiment 1:

[0059] like Figure 2 A pulling aid, comprising Figure 3 The auxiliary puller body shown, Figure 4 The cover plate 4 shown, Figure 5 The auxiliary card block 10 shown and Figure 6 , Figure 7 The illustrated auxiliary pull-out block 7 has a groove for installing an auxiliary pull-out block 10 on the auxiliary pull-out body. After being inserted, the auxiliary pull-out block 10 is restricted in a certain space by using a cover plate 4, and the auxiliary pull-out body, the cover plate 4, and the auxiliary pull-out block 10 are connected together by screws; the auxiliary pull-out block 7 is connected to the auxiliary pull-out body through the body rotation shaft 6. After installation, the auxiliary pull-out block 7 and the auxiliary pull-out body can rotate around the body rotation shaft 6. In this embodiment, the auxiliary pull-out body is integrated, with a simple structure and convenient assembly.

[0060] The head of the auxiliary ejection block 10 is provided with an anti-slip pressure block 102, the bottom of the auxiliary ejection block 10 is provided with a hook 101 which cooperates with the clamping platform 71 on the top of the auxiliary ejection block 7 to complete self-locking, and a compression spring 11 is provided under the anti-slip pressure block 102. The auxiliary ejection block 10 can rotate around the block rotation shaft 5. The auxiliary ejection block 7 is connected to the auxiliary ejection body through the body rotation shaft 6, and a torsion spring 8 needs to be installed to ensure the automatic reset function during operation.

[0061] The cover plate 4 , the auxiliary ejection block 10 and the auxiliary ejection block 7 can all be made of plastic, polymer, aluminum alloy, stainless steel, copper-based alloy, nickel-based alloy, Hastelloy, oxide ceramics or non-oxide ceramics.

[0062] The ejection aid can quickly detach the ejection aid block 10 from the ejection aid block 7 by pressing the anti-slip button on the top of the ejection aid block 10 to achieve unlocking.

[0063] Rotate around the block shaft 5, this movement is used to release the self-locking. In normal operation, when pressing the auxiliary pull body, the auxiliary pull block 7 can rotate around the body shaft 6, this movement is the main movement for installing the single board 13, and after rotating a certain angle, the auxiliary puller self-locks to complete the installation action.

[0064] Embodiment 2:

[0065] The difference between Example 2 and Example 1 is that the pulling-out assisting body is a split type, that is, the pulling-out assisting body is composed of a first body 1 and a second body 9 .

[0066] Figure 8 A pull-out aid is provided, wherein the pull-out aid body is composed of Fig. 9 The first body 1 and Fig.10 The second body 9 shown in the figure is composed of the auxiliary puller, which also includes a compression spring 11, Fig.11 The cover plate 4, the auxiliary pull-out block 10, the block rotating shaft 5, the body rotating shaft 6, the auxiliary pull-out block 7, the torsion spring 8, the compression spring 11, Fig.12 The left button 3 and Fig.13 Right button block 12 is shown.

[0067] The first body 1 is provided with a number of weight-reducing holes on both sides, two pin holes on the top, and a slot on the side for cooperating with the left and right blocks 3 and 12, and fixing the first end of the left and right blocks 3 and 12 to the first body 1 through a rotating shaft arranged in the pin holes; the second end of the left and right blocks 3 and 12 are both provided with rectangular claws 31 for cooperating with the second body 9, that is, the first and second bodies 1 and 9 are fixed together through the left and right blocks 3 and 12. In order to facilitate installation and limiting, a limiting protrusion 16 is provided at one end of the first body 1 connected to the second body 9, and a limiting hole is correspondingly provided on the second body 9, and the limiting protrusion 16 is adapted to the limiting hole.

[0068] The hook 101 at the bottom of the auxiliary ejection block 10 cooperates with the clamping platform 71 at the top of the auxiliary ejection block 7 to achieve self-locking.

[0069] The cover plate 4 is connected to the second body 9 by two screws to protect and fix the auxiliary ejection block 10 .

[0070] A matching hole for the main body shaft 6 is provided in the middle of the pull-out aid block 7, and a 1 / 4 circle groove is provided at the lower left corner. There is a threaded through hole on the groove, which matches the two threaded holes on the 8-shaped boss on the other side to connect the pull-out aid and the working element (generally a single plate 13).

[0071] The left push block 3 and the two right push blocks can realize quick plugging and unplugging between the first body 1 and the second body 9, and the push blocks are reset by the reset springs.

[0072] It should be noted that if the pull-out aid body 14 is designed as a split type, the structures of the pull-out aid block 7 and the pull-out aid block 10 remain unchanged, and the structure of the cover plate 4 needs to be adjusted to a certain extent. For specific structural changes, refer to Fig.11 .

[0073] The pull-out aid can rotate around the block rotation axis 5 by pressing the anti-skid button on the top of the pull-out aid block 10. This movement is used to release the self-locking. In normal operation, when the first body 1 is pressed, the second body 9 and the pull-out aid block 7 can rotate around the body rotation axis 6. This movement is the main movement for installing the single board 13. After rotating a certain angle, the pull-out aid is self-locking and the installation action is completed.

[0074] The compression spring 11 is used to reset the auxiliary pull-out block 10, and the torsion spring 8 can reset the auxiliary pull-out body after the self-locking is released.

[0075] Figure 8 It is a schematic diagram of the decomposition of the split-type pull-out aid. During installation, the first body 1 and the second body 9 are matched through the limiting protrusion 16 and the limiting groove, and the compression spring 11 is placed in the blind hole 15 of the first body 1, and then the left press block 3 and the right press block 12 are installed. The left press block 3 and the right press block 12 are connected to the first body 1 through the rotating shaft. After the compression spring 11 is placed in the blind hole 15, it should extend out of the blind hole 15 to a certain height, and there is a certain pre-tightening force after the pull-out aid block 10 is installed. The cover plate 4 is positioned by the positioning boss and then installed on the second body 9 with screws, and the pull-out aid block 10 is confined in the closed space. The cover plate 4, the pull-out aid block 10 and the second body 9 are riveted together by the block rotating shaft 5 to ensure that the pull-out aid block 10 can only rotate around the block rotating shaft 5 and can be reset by the compression spring 11. The torsion spring 8 is installed in the corresponding circular groove of the second body 9, and is tightly matched with the circular boss. The fixed end of the torsion spring 8 is placed in the fixed groove at the lower part of the second body 9, and the movable end is located in the installation groove of the inner side wall of the auxiliary pull-out block 7. In normal state (non-working state), the right inclined surface of the lower plate of the auxiliary pull-out block 7 contacts the bottom surface of the boss at the bottom of the second body 9. The body shaft 6 rivets the auxiliary pull-out block 7 and the second body 9 together.

[0076] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A pulling aid, characterized in that: include An auxiliary pull-out block, which is fixedly connected to the single board and fixes the auxiliary pull-out device to the single board; An auxiliary pulling body, the bottom of which is rotatably connected to the auxiliary pulling block, and an accommodating cavity is provided on the auxiliary pulling body; The auxiliary pull-out card block is rotatably arranged in the accommodating cavity, and the head of the auxiliary pull-out card block extends out of the top of the accommodating cavity; the bottom end of the auxiliary pull-out card block is provided with a hook, and the top end of the auxiliary pull-out block is provided with a clamping platform. When the auxiliary pull-out card block rotates to the clamping position with the auxiliary pull-out body, the hook is engaged with the clamping platform, thereby realizing the self-locking of the auxiliary pull-out device; A blind hole is provided on the bottom surface of the accommodating cavity, and the blind hole is located below the head of the auxiliary ejection card block; A compression spring is arranged in the blind hole, and the top of the compression spring abuts against the bottom surface of the head of the auxiliary ejection block; when the head of the auxiliary ejection block is pressed, the auxiliary ejection block rotates, the hook is separated from the card platform, and the self-locking is released; The auxiliary extraction body comprises a first body and a second body, the first body and the second body are detachably fixedly connected, the accommodating cavity is provided on the second body, and the auxiliary extraction block is rotatably arranged in the accommodating cavity; It also includes a left pressing block and a right pressing block, wherein the left pressing block and the right pressing block are respectively buckled on both sides of the auxiliary pulling body, and the first end of the left pressing block is fixedly connected to the first body, and the second end of the left pressing block is fixedly connected to the second body; the first end of the right pressing block is fixedly connected to the first body, and the second end of the right pressing block is fixedly connected to the second body, and the first body and the second body are connected through the left pressing block and the right pressing block; A plurality of weight-reducing holes are provided on the two side surfaces of the first body, and two pin holes are provided on the top surface. A clamping groove is provided on the side surface of the first body for cooperating with the left push block and the right push block, and the first end of the left push block and the first end of the right push block are fixed to the first body through a rotating shaft provided in the pin hole; a rectangular clamping claw is provided on the second end of the left push block and the second end of the right push block for cooperating and connecting with the second body; The first end of the left button block and the first end of the right button block are both rotatably fixed to the first body via a rotating shaft; A claw is disposed on the second end of the left pressing block and the second end of the right pressing block, and a slot is disposed on the left and right sides of the second body, and the claw is cooperatively connected with the slot; It also includes a cover plate, which covers one side of the accommodating cavity to limit the auxiliary ejection card block in the accommodating cavity; It also includes a torsion spring, which is arranged between the auxiliary pulling body and the auxiliary pulling block. A fixing groove is opened on the side of the auxiliary pulling body, and an installation groove is opened on the inner side wall of the auxiliary pulling block. The fixed end of the torsion spring is arranged in the fixing groove, and the movable end of the torsion spring is arranged in the installation groove.

2. The extraction aid according to claim 1, characterized in that: A spring hole is provided on the first body, a pressing block spring is arranged in the spring hole, and two ends of the pressing block spring are respectively against the left pressing block and the right pressing block.

3. The extraction aid according to claim 1, characterized in that: A limiting protrusion is arranged at one end of the first body connected to the second body, and a limiting hole is correspondingly arranged on the second body, and the limiting protrusion is matched with the limiting hole.

4. The extraction aid according to claim 1, characterized in that: An anti-slip pressing block is arranged on the upper side of the head of the auxiliary ejection block.

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