Pulling structure of multi-protection device

Abstract

The utility model discloses a pulling structure of a multi-protection device, relates to the technical field of pulling structures of multi-protection devices, and aims to solve the problems that the existing pulling structure is single in fixed bolt, so that the fixed bolt is easy to slip from the bolt when the pulled bolt is screwed, and the smooth pulling of the bolt is influenced. The device comprises a round shell and a bolt, a bearing is installed in a round hole in the side wall of the round shell, a double-end threaded rod is installed in an inner ring of the bearing, clamping structures are installed in the round hole and the round shell, the number of the clamping structures is two, and the clamping structures are symmetrically distributed on the two sides with the center line of the round shell as the center. The clamping structure comprises a limiting groove, a limiting block, a vertical plate and a clamping piece, the limiting groove is formed in the round shell, the limiting block is arranged in the limiting groove, the double-end threaded rod is connected in a threaded groove reserved in the limiting block in a sleeved mode, the vertical plate is installed on the limiting block, the clamping piece is installed on the vertical plate, and the bolt is clamped by the clamping piece.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting and pulling structures, in particular to a lifting and pulling structure with multiple protective devices. Background Art

[0002] Auto parts are the various units that make up the whole car and a kind of product that serves the car. There are many kinds of auto parts. With the improvement of people's living standards, people's consumption of cars is increasing, and the market of auto parts is getting bigger and bigger. In car maintenance, the removal of bolts is a big problem. Especially a kind of large bolts are often twisted very tightly, which is inconvenient to remove. It is necessary to remove the bolts by pulling out the structure;

[0003] However, the current extraction structure has a single fixing bolt, which makes it easy for the bolt to slip when the extraction bolt is screwed, thus affecting the problem of smooth extraction of the bolt. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a pulling structure with multiple protection devices, which solves the problem that the current pulling structure has a single fixing bolt, which makes it easy for the pulling bolt to slip off when it is screwed, thus affecting the smooth pulling of the bolt.

[0005] To achieve the above object, the utility model is implemented by the following technical scheme: a lifting and pulling structure of a multiple protection device, comprising a round shell and a bolt, a bearing is installed in a round hole on the side wall of the round shell, a double-headed threaded rod is installed in the inner ring of the bearing, and the round hole Round Shell A clamping structure is installed inside, and the number of the clamping structures is two, and the clamping structures are symmetrically distributed on both sides with the center line of the circular shell as the center;

[0006] The clamping structure comprises a limit groove, a limit block, a vertical plate and a clamping member, wherein the limit groove is provided in the round shell, the limit block is placed in the limit groove, the double-headed threaded rod is sleeved in a thread groove reserved on the limit block, the vertical plate is mounted on the limit block, the clamping member is mounted on the vertical plate, and the clamping member clamps the bolt;

[0007] A bottom supporting structure is installed on the vertical plate, and the bottom supporting structure is arranged corresponding to the vertical plate. The bottom supporting structure includes a cross block, a slider, a slide groove and a spring. The slider is installed on the cross block, the slide groove is opened on the vertical plate, the slider is slidably engaged in the slide groove, and the spring is installed between the slider and the slide groove.

[0008] Preferably, a sleeve is installed on the round shell, a round rod is inserted into the sleeve, a threaded hole is provided on the sleeve, a screw is sleeved in the threaded hole, and a slot is provided on the round rod. The number of the slots is not less than nine, and the slots are equidistantly distributed on the round rod.

[0009] Preferably, a vertical rod is installed in the circular shell, a top plate is installed on the vertical rod, a through hole is opened on the vertical rod, and the double-headed threaded rod passes through the through hole.

[0010] Preferably, a handle is mounted on the round rod, a convex point is processed on the handle, a finger groove is opened on the handle, the number of the finger grooves is four, and the finger grooves are equidistantly distributed on the handle.

[0011] Preferably, a groove is provided in the circular shell, and the double-headed threaded rod is inserted into the groove.

[0012] Preferably, moving blocks are installed on the circular shell, the number of the moving blocks is not less than four, and the moving blocks are equidistantly distributed on the circular shell.

[0013] The utility model provides a lifting and pulling structure of multiple protection devices, which has the following beneficial effects:

[0014] 1. When in use, extend the horizontal block to the shortest position, rotate the double-headed threaded rod through the bearing on the round shell, so that the limit block moves inward or outward along the limit groove, and the vertical plate drives the clamping piece to adjust according to the size of the bolt head, and fits and clamps on the bolt head, rotate the round shell, and screw and disassemble the bolt. When there is a little space at the bolt screwing position, extend the horizontal block, the horizontal block presses on the threaded surface of the bolt, and the horizontal block slides along the slide groove with the slider, compressing or stretching the spring, adjusting according to the thickness of the bolt head, and through the elasticity of the spring, the horizontal block presses on the bottom end of the bolt head, so that the bolt head is double-fixed during the process of pulling out the bolt, avoiding slippage during pulling out, and facilitating the smooth pulling out of the bolt;

[0015] 2. If the extraction space is small and it is inconvenient to enter the hand to screw the round shell, the round rod can be extended and retracted along the sleeve to a suitable height. After adjustment, the screw is moved inward in the threaded hole until it is inserted into the slot at the corresponding position to limit the sleeve and the round rod. At this time, the round rod is rotated to facilitate the rotation of the round shell through the sleeve in a smaller space to extract the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the limit groove, limit block and vertical plate of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sleeve, round rod and threaded hole of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the clamping member and the bolt of the utility model.

[0020] In the figure: 1 round shell, 2 moving block, 3 bolt, 4 clamping structure, 401 limit groove, 402 limit block, 403 vertical plate, 404 clamping piece, 5 bearing, 6 double-headed threaded rod, 7 bottom supporting structure, 8 cross block, 9 slider, 10 slide groove, 11 spring, 12 vertical rod, 13 top plate, 14 through hole, 15 groove, 16 sleeve, 17 round rod, 18 threaded hole, 19 screw, 20 slot, 21 handle, 22 bump, 23 finger groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0023] Embodiment 1:

[0024] Depend on Figure 1 , 2 As shown in Figures 4 and 5, a lifting and pulling structure of a multiple protection device includes a round shell 1 and a bolt 3. A bearing 5 is installed in a round hole on the side wall of the round shell 1. A double-headed threaded rod 6 is installed in the inner ring of the bearing 5. A clamping structure 4 is installed in the round hole 1. There are two clamping structures 4. The clamping structures 4 are symmetrically distributed on both sides with the center line of the round shell 1 as the center.

[0025] The clamping structure 4 includes a limiting groove 401, a limiting block 402, a vertical plate 403 and a clamping member 404. The limiting groove 401 is provided in the round shell 1, the limiting block 402 is placed in the limiting groove 401, the double-headed threaded rod 6 is sleeved in the threaded groove reserved on the limiting block 402, the vertical plate 403 is installed on the limiting block 402, the clamping member 404 is installed on the vertical plate 403, and the clamping member 404 clamps the bolt 3;

[0026] A bottom supporting structure 7 is installed on the vertical plate 403. The bottom supporting structure 7 is arranged corresponding to the vertical plate 403. The bottom supporting structure 7 includes a horizontal block 8, a slider 9, a slide groove 10 and a spring 11. The slider 9 is installed on the horizontal block 8. The slide groove 10 is provided on the vertical plate 403. The slider 9 is slidably connected in the slide groove 10. The spring 11 is installed between the slider 9 and the slide groove 10.

[0027] In the specific implementation process, it is worth pointing out that the bearing 5 is fixedly connected in the circular hole pre-opened on the side wall of the round shell 1 to provide a stable rotation point for the double-headed threaded rod 6. The limit block 402 is square-shaped, and the limit groove 401 is a rectangular groove. The two have the same width. The limit block 402 is pre-opened with a thread groove that matches the surface thread of the double-headed threaded rod 6. The clamping piece 404 is provided with a groove that matches one corner of the hexagonal bolt 3, so that the clamping piece 404 can clamp the screw head of the bolt 3 more stably.

[0028] The horizontal block 8 is a telescopic plate, which is composed of a convex block and a square sleeve and a slide rail installed between the two. It can be telescopically limited, and the shortest length of the whole is shorter than the length of the clamping member 404, and the longest telescopic position is greater than the length of the clamping member 404. The spring 11 is fixedly connected between the slider 9 and the upper part of the slide groove 10, and the slide groove 10 extends downward by 2-5cm for the slider 9 to slide;

[0029] Specifically, when in use, the cross block 8 is extended and retracted to the shortest position, and the double-headed threaded rod 6 is rotated to rotate on the round shell 1 through the bearing 5, so that the limit block 402 moves inward or outward along the limit groove 401, and the vertical plate 403 drives the clamping piece 404 to adjust according to the size of the screw head of the bolt 3, and fits and clamps on the screw head of the bolt 3, and the round shell 1 is rotated to screw and disassemble the bolt 3. When the bolt 3 is screwed to a little space, the cross block 8 is extended and retracted, and the cross block 8 is pressed against the threaded surface of the bolt 3, so that the cross block 8 slides along the slide groove 10 with the slider 9, and the spring 11 is compressed or stretched, and adjusted according to the thickness of the screw head of the bolt 3. Through the elasticity of the spring 11, the cross block 8 is pressed against the bottom end of the screw head of the bolt 3, so that the screw head of the bolt 3 is doubly fixed during the process of pulling out the bolt 3, to avoid slipping during pulling out, and to facilitate the smooth pulling out of the bolt 3.

[0030] Embodiment 2:

[0031] Depend on Figure 1 , 2 As shown in Figure 3, a sleeve 16 is installed on the round shell 1, a round rod 17 is inserted into the sleeve 16, a threaded hole 18 is provided on the sleeve 16, a screw 19 is sleeved in the threaded hole 18, and a slot 20 is provided on the round rod 17. The number of the slots 20 is not less than nine, and the slots 20 are evenly distributed on the round rod 17;

[0032] In the specific implementation process, it is worth pointing out that the round rod 17 and the sleeve 16 form a telescopic rod, and the screw 19 is a limiter of the telescopic rod. The slot 20 provided on the surface of the round rod 17 is more advantageous for limiting the sleeve 16 and the round rod 17 after the screw 19 is inserted, and the extension distance of the round rod 17 in the sleeve 16 is adjusted according to the position of the screw 19 inserted into the slot 20;

[0033] Specifically, if the extraction space is small and it is inconvenient to enter the hand to screw the round shell 1, the round rod 17 can be extended to a suitable height along the sleeve 16. After adjustment, the screw 19 is moved inward in the threaded hole 18 until it is inserted into the slot 20 at the corresponding position, and the sleeve 16 and the round rod 17 are limited. At this time, the round rod 17 is rotated to facilitate the rotation of the round shell 1 through the sleeve 16 in a small space to extract the bolt 3;

[0034] Furthermore, a handle 21 is mounted on the round rod 17, a convex point 22 is processed on the handle 21, and a finger groove 23 is opened on the handle 21. The number of the finger grooves 23 is four, and the finger grooves 23 are evenly distributed on the handle 21;

[0035] In the specific implementation process, it is worth pointing out that the handle 21 and the round rod 17 can be fixedly connected or bolted, the height of the handle 21 is greater than the width of a general finger, and the convex point 22 is a curved plate with a raised surface processed and embedded in the handle 21, and the finger groove 23 matches the four fingers of the hand, so that the handle 21 can be gripped;

[0036] Specifically, by holding the handle 21, the convex point 22 increases the friction between the handle 21 and the hand, and the fingers are tightly gripped in the finger groove 23, so that the handle 21 can be held to rotate the round shell 1 and avoid slipping out of the hand;

[0037] On the basis of the above-mentioned embodiment 1, a vertical rod 12 is installed in the circular shell 1, a top plate 13 is installed on the vertical rod 12, a through hole 14 is opened on the vertical rod 12, and the double-threaded rod 6 passes through the through hole 14;

[0038] In the specific implementation process, it is worth pointing out that the vertical rod 12 is fixedly connected to the middle position inside the round shell 1, the lowest point of the top plate 13 and the highest point of the clamping member 404 are on the same horizontal line, when the top plate 13 is on the screw head of the bolt 3, the clamping member 404 can clamp the screw head of the bolt 3, and the diameter of the through hole 14 is larger than the outer diameter of the double-headed threaded rod 6 by 0.1-0.2mm, providing a second support point for the rotation of the double-headed threaded rod 6;

[0039] Specifically, when the clamping member 404 clamps the screw head of the bolt 3, the top plate 13 on the vertical rod 12 presses on the top of the screw head of the bolt 3, providing a third limiting structure for pulling out the bolt 3, so that the clamping member 404 clamps the screw head of the bolt 3 horizontally without deviation;

[0040] On the basis of the above-mentioned embodiment 1, a groove 15 is provided in the round shell 1, and the double-headed threaded rod 6 is inserted into the groove 15;

[0041] In the specific implementation process, it is worth pointing out that the inner diameter of the groove 15 is 0.1-0.2 mm larger than the outer diameter of the double-threaded rod 6, and the contact position between the double-threaded rod 6 and the groove 15 is not processed with threads;

[0042] Specifically, when the double-threaded rod 6 is rotated, the double-threaded rod 6 rotates in the groove 15 on the round shell 1, providing a third support position for the rotation of the double-threaded rod 6, so that the rotation of the double-threaded rod 6 is more stable;

[0043] On the basis of the above-mentioned embodiment 1, a moving block 2 is installed on the circular shell 1, the number of the moving blocks 2 is not less than four, and the moving blocks 2 are evenly distributed on the circular shell 1;

[0044] In the specific implementation process, it is worth pointing out that the moving block 2 is a rectangular parallelepiped welded on the round shell 1, and the round shell 1 can be rotated by moving the moving block 2;

[0045] Specifically, when the bolt 3 still cannot be screwed in by turning the handle 21, the helping staff can forcefully move the moving block 2 at the same time, so that the bolt 3 that is relatively fixed can be pulled out by two people.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0047] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting and pulling structure of a multiple protection device, comprising a round shell (1) and a bolt (3), characterized in that: A bearing (5) is installed in the circular hole on the side wall of the circular shell (1), and a double-headed threaded rod (6) is installed in the inner ring of the bearing (5). round shell (1) is provided with a clamping structure (4), the number of the clamping structures (4) being two, and the clamping structures (4) being symmetrically distributed on both sides with the center line of the circular shell (1) as the center; The clamping structure (4) comprises a limiting groove (401), a limiting block (402), a vertical plate (403) and a clamping member (404); the limiting groove (401) is provided in the round shell (1); the limiting block (402) is placed in the limiting groove (401); the double-headed threaded rod (6) is sleeved in a threaded groove reserved on the limiting block (402); the vertical plate (403) is mounted on the limiting block (402); the clamping member (404) is mounted on the vertical plate (403); and the clamping member (404) clamps the bolt (3); A bottom supporting structure (7) is installed on the vertical plate (403), and the bottom supporting structure (7) is arranged corresponding to the vertical plate (403). The bottom supporting structure (7) comprises a cross block (8), a slider (9), a slide groove (10) and a spring (11). The slider (9) is installed on the cross block (8), the slide groove (10) is provided on the vertical plate (403), the slider (9) is slidably engaged in the slide groove (10), and the spring (11) is installed between the slider (9) and the slide groove (10).

2. The lifting and pulling structure of a multiple protection device according to claim 1, characterized in that: The round shell (1) is provided with a sleeve (16), a round rod (17) is inserted into the sleeve (16), a threaded hole (18) is provided on the sleeve (16), a screw (19) is sleeved in the threaded hole (18), and a slot (20) is provided on the round rod (17). The number of the slots (20) is not less than nine, and the slots (20) are evenly distributed on the round rod (17).

3. The lifting and pulling structure of a multiple protection device according to claim 1, characterized in that: A vertical rod (12) is installed in the circular shell (1), a top plate (13) is installed on the vertical rod (12), a through hole (14) is opened on the vertical rod (12), and the double-headed threaded rod (6) passes through the through hole (14).

4. The lifting and pulling structure of a multiple protection device according to claim 2, characterized in that: A handle (21) is mounted on the round rod (17), a convex point (22) is processed on the handle (21), a finger groove (23) is opened on the handle (21), the number of the finger grooves (23) is four, and the finger grooves (23) are evenly distributed on the handle (21).

5. The lifting and pulling structure of a multiple protection device according to claim 1, characterized in that: A groove (15) is provided in the circular shell (1), and the double-headed threaded rod (6) is inserted into the groove (15).

6. The lifting and pulling structure of a multiple protection device according to claim 1, characterized in that: The circular shell (1) is provided with moving blocks (2), the number of the moving blocks (2) is not less than four, and the moving blocks (2) are evenly distributed on the circular shell (1).

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