Portable sliding column assembly disassembling and assembling tool

Abstract

The invention discloses a portable sliding column assembly disassembling and assembling tool, and relates to the technical field of automobile maintenance, the portable sliding column assembly disassembling and assembling tool comprises a movable base and a telescopic sliding column arranged on the base, the telescopic sliding column comprises a fixed column and a movable column, and the portable sliding column assembly disassembling and assembling tool further comprises two pressing distance control mechanisms used for adjusting the pressing amount according to the diameter of a spring. And the detection limiting mechanism is used for detecting the diameter of the spring and limiting the detected part at the same time. The diameter of a pressed spring can be judged through the detection limiting mechanism, then the pressing range is transmitted to the pressing distance control mechanism, so that when the spring is pressed through the telescopic sliding column, the pressing amount of the spring can be controlled, and the phenomenon that the spring is fatigued due to the fact that the deformation amount of the spring is too large is avoided; and the position of the spring at the pressing part can be fixed through the detection limiting mechanism, so that the phenomenon of collapse caused by pressing bending due to elastic fatigue of the replaced spring during pressing is prevented, and the maintenance safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile maintenance, and particularly to a portable strut assembly disassembly and assembly tool. Background Art

[0002] The strut assembly disassembly and assembly tool is mainly used to disassemble the shock absorber of an automobile, so that the spring inside can be separated from the shock absorber body. The shock absorber is mainly used to suppress the oscillation when the spring rebounds after absorbing shock and the impact from the road surface. When passing through an uneven road surface, although the shock-absorbing spring can filter the vibration of the road surface, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump. If the shock absorber is too soft, the vehicle body will jump up and down. If the shock absorber is too hard, it will bring too much resistance and prevent the spring from working properly.

[0003] However, when using the strut assembly tool to disassemble the spring shock absorber, first, the bottom of the spring shock absorber is clamped and fixed, then the spring in the shock absorber is pressed so that the spring no longer presses against the end of the shock absorber, then the upper end of the shock absorber is rotated so that the shock absorber is disengaged from the restriction on the spring, and then the spring is disassembled. However, during the disassembly process, the diameters of the springs in different shock absorbers are different, but when pressing the spring, it completely depends on the operator, and the deformation amounts of springs with different diameters are different. Therefore, during the pressing process, the actual pressing amount should be changed according to the diameter of the spring to ensure that the spring will not be damaged due to excessive deformation. Secondly, during the process of pressing the spring, since the spring is in an arc section during the pressing process, and the existing tools cannot fix the spring when pressing the spring, there is a certain risk during disassembly. Summary of the Invention

[0004] The technical solution of the present invention provides a solution significantly different from the prior art for the technical problem that the prior art solution is too single. An embodiment of the present invention provides a portable strut assembly disassembly and assembly tool to solve the technical problems that when the existing strut disassembly tool presses the spring for disassembly, the pressing amount cannot be changed according to the diameter of the spring, which may cause the spring to be damaged due to excessive pressing amount, and secondly, the spring cannot be fixed during pressing, resulting in a certain risk during disassembly.

[0005] An embodiment of the present invention adopts the following technical solution: A portable strut assembly disassembly and assembly tool includes a movable base and a telescopic strut arranged on the base. The telescopic strut includes a fixed column and a movable column, and is characterized in that; it further includes two pressing distance control mechanisms for adjusting the pressing amount according to the spring diameter, a detection and limiting mechanism for detecting the spring diameter and limiting the detection position, and a lower clamping seat for fixing the shock absorber is arranged on the fixed column;

[0006] Each of the pressing distance control mechanisms includes an upper clamping seat and a movable sleeve column. The movable sleeve column is arranged beside the lower clamping seat so that its position is fixed. A connecting block is arranged at the end of the movable end of the movable sleeve column. A limiting movable rod for limiting the pressing distance is arranged at the inner bottom of the connecting block. A limiting control block is arranged at the top of the limiting movable rod. A matching block is arranged between the limiting control block and the connecting block. The ends of the two matching blocks are respectively connected to the corresponding upper clamping seats. The upper clamping seat is connected to the movable end of the telescopic sliding column.

[0007] Furthermore, the cross-section of the connecting block is L-shaped.

[0008] Furthermore, the lower clamping seat is divided into left and right parts, and the distance between the left and right parts of the lower clamping seat is adjusted by a screw rod.

[0009] Furthermore, the two upper clamping seats are connected by a screw rod.

[0010] Furthermore, the detection and limiting mechanism includes two clamping blocks. Each clamping block is connected to the corresponding upper clamping seat. An installation groove is formed in the clamping block. A movable limiting block and a variable limiting block are arranged in the installation groove. A pressing spring bladder is arranged between the ends of the movable limiting block and the variable limiting block. A control groove is arranged beside the installation groove. A movable arc-shaped limiting block is arranged in the control groove. The control groove and the pressing spring bladder are connected by a connecting pipe, and the arc-shaped limiting block and the inside of the control groove are connected by a spring. An extrusion groove is arranged on the other side of the installation groove. The movable limiting block penetrates into the extrusion groove through an insertion block, and a return spring is arranged at the end of the insertion block. The return spring and the corresponding limiting movable rod are connected by a delivery pipe.

[0011] Furthermore, the cross-section of the variable limiting block is arc-shaped, and the variable limiting block is made of a plastic deformable material, such as spring steel sheet.

[0012] Furthermore, the movable limiting block is arc-shaped. A flared opening is formed between the movable limiting block and the variable limiting block, and the opening size gradually decreases from bottom to top.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] First, during use, when the existing shock absorber disassembly device disassembles the shock absorber spring, it often sets two pressing pieces on both sides of the shock absorber spring respectively, and then makes the sliding column move to press the shock absorber spring to make it contract. After removing the fixing knob at the end of the shock absorber, the disassembly of the shock absorber is completed. However, during the process of pressing the shock absorber spring, some springs with elastic fatigue may be pressed and bent and tilted. The simple pressing method does not have the function of limiting the spring. Therefore, if the bending degree is too large, the spring may pop out and cause injury to the maintenance personnel. In the solution, when the detection and limiting mechanism presses the spring, it can not only detect the diameter of the spring, but also limit and wrap the bent spring when pressing the spring, thus avoiding the phenomenon of the spring popping out. During the limiting process, no additional operation steps are required, and the limiting is completed during the step of pressing the spring. At the same time, when the pressing of the spring is cancelled, the limiting of the spring will also be cancelled synchronously, improving the safety of the device without increasing operation steps;

[0015] Second, when the detection and limiting mechanism completes the detection of the spring diameter, through the structural transmission relationship between them, finally when the spring needs to be pressed, the downward displacement of the sliding column is limited at this time. Springs with different diameters can be squeezed by different amounts, so that when pressing the spring, it can effectively avoid the phenomenon that excessive deformation causes the spring to have elastic fatigue, and also reduces the phenomenon that the spring flies off due to excessive pressing amount, improving the operation safety;

[0016] In summary, during the use of the sliding column disassembly assembly tool, the detection and limiting mechanism can judge the diameter of the pressed spring, and then transmit the pressable range to the pressing distance control mechanism, so that when using the telescopic sliding column to press the spring, the pressing amount of the spring can be controlled, avoiding the phenomenon that excessive spring deformation causes spring fatigue. At the same time, during the process of pressing the spring, the detection and limiting mechanism can fix the position of the spring at the pressing part, preventing the phenomenon that the spring pops off due to the elastic fatigue of the replaced spring itself during pressing and bending, improving the safety of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 Schematic structural diagram of the pressing distance control mechanism of the present invention;

[0020] Figure 3 Schematic structural diagram of the second perspective of the main body of the present invention;

[0021] Figure 4 of the present invention Figure 3 Enlarged structural diagram at position A in;

[0022] Figure 5 Schematic structural diagram of the variable limit block of the present invention;

[0023] Figure 6 Schematic structural diagram of the connection structure between the limit movable rod and the conveying pipe of the present invention.

[0024] Reference numerals:

[0025] 1, base; 2, telescopic sliding column; 3, lower clamping seat; 4, movable column; 5, pressing distance control mechanism; 51, movable sleeve column; 52, limit movable rod; 53, connecting block; 54, electric control valve; 55, limit control block; 56, matching block; 57, upper clamping seat; 58, conveying pipe; 6, detection limit mechanism; 61, clamping block; 62, arc limit block; 63, control groove; 64, pressing spring liquid sac; 65, return spring; 66, movable limit block; 67, variable limit block; 68, installation groove. Detailed implementation manners

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0027] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0028] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] As shown below in conjunction with Figures 1 to 6 The embodiment of the present invention provides a portable disassembly and assembly tool for a sliding column assembly, including a movable base 1 and a telescopic sliding column 2 provided on the base 1. The telescopic sliding column 2 includes a fixed column and a movable column 4, and further includes two pressing distance control mechanisms 5 for adjusting the pressing amount according to the spring diameter, a detection and limiting mechanism 6 for detecting the spring diameter and limiting the detection position. A lower clamping seat 3 for fixing the shock absorber is provided on the fixed column;

[0032] Each of the pressing distance control mechanisms 5 includes an upper clamping seat 57 and a movable sleeve column 51. The movable sleeve column 51 is arranged beside the lower clamping seat 3 so that its position is fixed. A connecting block 53 is provided at the end of the movable end of the movable sleeve column 51. A limiting movable rod 52 for limiting the pressing distance is provided at the inner bottom of the connecting block 53. A limiting control block 55 is provided at the top of the limiting movable rod 52. A matching block 56 is provided between the limiting control block 55 and the connecting block 53. The ends of the two matching blocks 56 are respectively connected to the corresponding upper clamping seats 57, and the upper clamping seats 57 are connected to the movable ends of the telescopic sliding columns 2.

[0033] Specifically, the cross-section of the connecting block 53 is L-shaped.

[0034] Specifically, the lower clamping seat 3 is divided into left and right parts, and the distance between the left and right parts of the lower clamping seat 3 is adjusted by a screw rod.

[0035] Specifically, the two upper clamping seats 57 are connected by a screw rod.

[0036] During operation, the diameters of shock absorbers on different vehicles are different. Therefore, when clamping the shock absorber, the clamping seat should be able to clamp shock absorbers with different diameters. For this reason, in this solution, the lower clamping seat 3 is set as a movable clamping seat adjusted by a screw, so as to meet the clamping and fixing of shock absorbers with different diameters.

[0037] Specifically, the detection and limiting mechanism 6 includes two clamping blocks 61. Each clamping block 61 is connected to the corresponding upper clamping seat 57. An installation groove 68 is formed in the clamping block 61. An active limiting block 66 and a variable limiting block 67 are arranged in the installation groove 68. A pressing spring bladder 64 is arranged between the ends of the active limiting block 66 and the variable limiting block 67. A control groove 63 is arranged beside the installation groove 68. A movable arc-shaped limiting block 62 is arranged in the control groove 63. The control groove 63 and the pressing spring bladder 64 are connected by a connecting pipe. And the arc-shaped limiting block 62 and the control groove 63 are connected by a spring. An extrusion groove is arranged on the other side of the installation groove 68. An insertion block on the active limiting block 66 penetrates into the extrusion groove, and a return spring 65 is arranged at the end of the insertion block. The return spring 65 and the corresponding limiting movable rod 52 are connected by a delivery pipe 58. An electronically controlled expansion valve 54 is arranged on the delivery pipe 58. During use, an expandable sleeve can also be arranged on the delivery pipe 58. During the use process, due to the influence of the spring material, it may be that the larger the cross-sectional area of the spring, the smaller the compressible space. Therefore, it is necessary to ensure that the larger the cross-sectional area of the spring, the opposite the compressible amount should be. For this reason, an electronically controlled valve 54 is arranged on the delivery pipe 58. When inverse proportional adjustment is required, the electronically controlled expansion valve 54 is started at this time to control the adaptive expansion of the internal expandable sleeve, so that the volume of the internal cavity changes. When the detection is completed, the more the displacement of the active limiting block 66, the larger the expansion space inside the electronically controlled expansion valve 54 at this time, so that more of the liquid after extrusion enters the electronically controlled expansion valve 54, resulting in the diversion of the liquid actually entering the limiting movable rod 52 into the internal space of the electronically controlled expansion valve 54. Therefore, less liquid actually enters the limiting movable rod 52, so that it will not increase due to the increase in the diameter of the shock absorber spring.

[0038] Specifically, the cross-section of the variable limiting block 67 is arc-shaped, and the variable limiting block 67 is made of a plastic deformable material, such as spring steel sheet.

[0039] During operation, when the diameters of the shock absorbers are different, the arc of the shock-absorbing spring in the shock absorber will change. By setting the variable limit block 67, when pressing the shock-absorbing spring, the variable limit block 67 will also change its arc under the action of force, enabling better engagement with the shock-absorbing spring when engaging it, avoiding poor engagement due to arc changes, and thus affecting subsequent pressing.

[0040] Working principle: During use, place the spring shock absorber to be disassembled on the telescopic slide post 2. Use the lower clamping seat 3 of the telescopic slide post 2 to clamp the bottom of the spring shock absorber. During the clamping process, adjust the gap between the lower clamping seats 3 by rotating the screw on the lower clamping seat 3 until the position of the shock-absorbing spring can be fixed by the two lower clamping seats 3. Then start the movable end of the telescopic slide post 2 to drive the upper clamping seat 57 to move until the upper clamping seat 57 corresponds to the spring position on the shock-absorbing spring. Then adjust the position of the upper clamping seat 57 through the screw on the upper clamping seat 57 until the installation groove 68 in the clamping block 61 provided on the upper clamping seat 57 corresponds to a certain section of the shock-absorbing spring. Then start the telescopic slide post 2 again. The telescopic slide post 2 moves downward to drive the clamping block 61 to press down. At this time, the shock-absorbing spring enters the installation groove 68. When the shock-absorbing spring enters, since there is a variable limit block 67 on one side of the installation groove 68, it can only change its arc to fit the spring surface as much as possible. Therefore, when springs of different diameters enter the installation groove 68, the movable limit block 66 changes its position. (The opening size gradually decreases from bottom to top. This is to facilitate the entry of the shock-absorbing spring in the initial stage of entry, and the gradual decrease is to ensure self-adaptive adaptation to the diameter of the shock-absorbing spring.) The movable limit block 66 is displaced under the action of the shock-absorbing spring. At the same time, the shock-absorbing spring will also squeeze the pressing spring liquid sac 64. The liquid inside the pressing spring liquid sac 64 enters the control groove 63 through the connecting pipe, thereby pushing the arc-shaped limit block 62 in the control groove 63 to move. The displaced arc-shaped limit block 62 locally limits the position of the shock-absorbing spring located in the installation groove 68, thus avoiding potential safety hazards of detachment and ejection when pressing and assembling the shock-absorbing spring to the outside of the spring shock absorber.

[0041] Secondly, at the beginning of the up-and-down movement of the telescopic slide post 2, the electric control valve 54 is closed at this time, so that the limit movable rod 52 cannot move up and down. At this time, when the clamping seat changes its position following the telescopic slide post 2, it will press the limit control block 55 through the matching block 56, causing the connecting block 53 to press the movable sleeve post 51 to complete the basic displacement (that is, corresponding to the preliminary displacement of the shock-absorbing spring in the previous paragraph). After the diameter judgment of the shock-absorbing spring is completed, the movable limit block 66 will displace at this time, thereby squeezing the liquid in the space where the return spring 65 is located, and making it enter the limit movable rod 52 through the delivery pipe 58 (the electric control valve 54 is open at this time). The limit movable rod 52 will descend and drive the limit control block 55 to descend synchronously (before entering, the limit movable rod 52 first descends a certain distance by controlling the contraction of the electric telescopic rod, and this distance is the basic compression amount. When liquid enters, it will cause the descending distance of the limit movable rod 52 to increase secondly). At this time, a gap appears between the limit control block 55 at the movable end of the limit movable rod 52 and the matching block 56. Then start the telescopic slide post 2 to descend to drive the extrusion of the shock-absorbing spring until the limit control 55 touches the matching block 56. At this time, the extrusion amount of the pressing spring is the gap between the matching block 56 and the limit control block 55, and the size of this extrusion stroke can be changed according to the spring diameter.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable sliding column assembly disassembly tool, comprising a movable base (1) and a telescopic sliding column (2) arranged on the base (1), wherein the telescopic sliding column (2) comprises a fixed column and a movable column (4), characterized in that; It also includes two pressing distance control mechanisms (5) for adjusting the pressing amount according to the spring diameter, and a detection limit mechanism (6) for detecting the spring diameter and limiting the detection position. The fixing column is provided with a lower clamping seat (3) for fixing the shock absorber. Each of the pressing distance control mechanisms (5) comprises an upper clamping seat (57) and a movable sleeve column (51), wherein the movable sleeve column (51) is arranged beside the lower clamping seat (3) so that its position is fixed, and a connecting block (53) is arranged at the movable end of the movable sleeve column (51), and a limiting movable rod (52) for limiting the pressing distance is arranged at the bottom of the inner side of the connecting block (53), and the limiting movable rod (52) and the connecting block (53) are connected by an electric control telescopic rod, and a limiting control block (55) is arranged at the top of the limiting movable rod (52), and a matching block (56) is arranged between the limiting control block (55) and the connecting block (53), and the ends of the two matching blocks (56) are respectively connected to the corresponding upper clamping seats (57), and the upper clamping seat (57) is connected to the movable end of the telescopic sliding column (2).

2. A portable strut assembly disassembly tool according to claim 1, characterized in that; The connecting block (53) has an L-shaped cross section.

3. A portable strut assembly disassembly tool according to claim 1, characterized in that; The lower clamping seat (3) is divided into two parts, the left and right parts, and the spacing between the left and right parts of the lower clamping seat (3) is adjusted by a screw.

4. A portable strut assembly disassembly tool according to claim 1, characterized in that; The two upper clamping seats (57) are connected via a screw.

5. A portable strut assembly disassembly tool according to claim 1, characterized in that; The detection limit mechanism (6) comprises two clamping blocks (61), each of the clamping blocks (61) is connected to a corresponding upper clamping seat (57), a mounting groove (68) is provided in the clamping block (61), a movable limit block (66) and a variable limit block (67) are provided in the mounting groove (68), a pressing spring liquid bag (64) is provided between the ends of the movable limit block (66) and the variable limit block (67), a control groove (63) is provided beside the mounting groove (68), and a movable arc-shaped limit block is provided in the control groove (63). (62), the control groove (63) and the pressing spring liquid bag (64) are connected by a connecting pipe, and the arc-shaped limit block (62) and the control groove (63) are connected by a spring, and an extrusion groove is arranged on the other side of the installation groove (68), and the movable limit block (66) penetrates into the extrusion groove through an insertion block, and a return spring (65) is arranged at the end of the insertion block, and the return spring (65) and the corresponding limit movable rod (52) are connected by a delivery pipe (58), and the delivery pipe (58) is provided with an electric control expansion valve (54).

6. A portable strut assembly disassembly tool according to claim 5, characterized in that; The variable limit block (67) has an arc-shaped cross section, and the variable limit block (67) is made of a plastically deformable material, such as a spring steel sheet.

7. A portable strut assembly disassembly tool according to claim 5, characterized in that; The movable limit block (66) is in an arc shape, and a bell mouth is formed between the movable limit block (66) and the variable limit block (67), and the size of the opening gradually decreases from bottom to top.

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