Charging pile cable pulling balancer

Abstract

The utility model relates to the field of charging pile cable balancers, in particular to a charging pile cable pulling balancer. Comprising a shell, a rotating shaft is rotationally arranged on the shell, and a twisting connection structure is arranged on the rotating shaft; a rotating shaft limiting block; the rotating shaft limiting block is connected to the shell in a sliding mode, a first locking structure is arranged between the rotating shaft limiting block and the rotating shaft, the first locking structure is used for locking the rotating shaft in the circumferential direction, and the rotating shaft limiting block slides to switch the locking state of the rotating shaft; the wire coil is rotationally arranged on the rotating shaft in a sleeving manner, and an inhaul cable is arranged on the wire coil and wound on the wire coil; the volute spiral spring is connected between the rotating shaft and the wire coil; and the limiting sliding block is connected to the shell in a sliding mode, a second locking structure is arranged between the limiting sliding block and the wire coil, the second locking structure is used for locking the wire coil in the circumferential direction, and the limiting sliding block slides to switch the locking state of the wire coil. The cable connector can adapt to different types of cables, has the advantage of being wide in application range, and can prolong the service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of charging pile cable balancer, specifically relates to a charging pile cable pulling balancer. BACKGROUND

[0002] Charging pile cable pulling balancer is a device for charging pile gun cable hoisting, it can make the suspended article be in the balanced state, can move freely up and down, it mainly utilizes the energy of internal coil spring accumulation, makes the tension of steel wire rope and the gravity of suspended article mutually offset, due to the parameters of various charging piles corresponding cable are different, need the tension of balancer to the cable can adaptively adjust, the existing charging pile cable pulling balancer is difficult to adjust the contraction state of coil spring, lead to the inconvenience of adapting to different kinds of charging pile cable, especially the elastic performance of coil spring declines when long-term use, will lead to the difficulty of the application of pulling balancer. SUMMARY

[0003] In order to overcome the above-mentioned prior art deficiencies, the utility model provides a kind of charging pile cable pulling balancer, can adapt to different kinds of cable, with the advantage of wide use range, can improve service life.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme:

[0005] A kind of charging pile cable pulling balancer, comprising:

[0006] Shell, rotationally arranged shaft is arranged on shell, and twist connection structure is arranged on shaft;

[0007] Shaft limiting block;Shaft limiting block is slidably connected on shell, and first locking structure is arranged between shaft limiting block and shaft, and first locking structure is used to circumferentially lock shaft, and sliding shaft limiting block is used to switch the locking state of shaft;

[0008] Wire reel, wire reel is rotatably sleeved on shaft, and cable is arranged on wire reel, and cable is wound on wire reel;

[0009] Spiral spring, spiral spring is connected between shaft and wire reel, and in wire reel reset process, spiral spring is used to drive wire reel to rotate in A direction to shrink cable;

[0010] Limiting slide block, limiting slide block is slidably connected on shell, and second locking structure is arranged between limiting slide block and wire reel, and second locking structure is used to circumferentially lock wire reel, and sliding limiting slide block is used to switch the locking state of wire reel.

[0011] Further, the charging pile cable pulling balancer in the application, the first locking structure comprises a lock tooth arranged at one end of the rotating shaft limiting block close to the rotating shaft and a lock slot arranged on the side of the rotating shaft corresponding to the lock tooth, and the lock slot is arranged on the outer side of the axis of the wire reel, and the lock slot is arranged in the circumferential direction of the rotating shaft.

[0012] Further, the charging pile cable pulling balancer in the application, the first locking structure comprises a lock tooth arranged at one end of the rotating shaft limiting block close to the rotating shaft and a lock slot arranged on the side of the rotating shaft corresponding to the lock tooth, and the lock slot is arranged on the outer side of the axis of the wire reel, and the lock slot is arranged in the circumferential direction of the rotating shaft.

[0013] Further, the charging pile cable pulling balancer in the application further comprises a limiting spring, the limiting spring is elastically connected with the rotating shaft limiting block, and the limiting spring is used for applying an elastic force to the rotating shaft limiting block in the direction of the rotating shaft. As a preferred scheme of the application, the limiting spring is arranged to facilitate the resetting of the rotating shaft limiting block in the direction of locking the rotating shaft, and when the rotating shaft is locked, the limiting spring also ensures that the rotating shaft limiting block can abut against the rotating shaft, preventing the rotating shaft limiting block and the rotating shaft from being unlocked during use.

[0014] Further, the charging pile cable pulling balancer in the application, the second locking structure comprises a lock convex arranged on the limiting sliding block and a group of insertion slots arranged in the circumferential direction on the end face of the wire reel.

[0015] The lock convex is arranged in the insertion slot to lock the wire reel in the circumferential direction; when the wire reel is unlocked, the lock convex moves to the radial outer side of the group of insertion slots.

[0016] Further, the charging pile cable pulling balancer in the application, the side surface of the limiting sliding block is provided with an elastic plate, the elastic plate is provided with a limiting tooth, the pair of side surfaces of the limiting tooth extends in a V-shaped inclined manner, and a pair of positioning grooves corresponding to the shape of the limiting tooth is arranged on the shell, and the pair of positioning grooves is arranged in the moving direction of the limiting sliding block. The limiting sliding block moves to the switching cooperation of the limiting tooth in the pair of positioning grooves to realize the switching of the locking state of the wire reel. As a preferred scheme of the application, the principle is that when the limiting sliding block moves to the position corresponding to the limiting tooth and the positioning groove, the elastic plate presses the limiting tooth into the positioning groove to generate resistance to the continuous sliding of the limiting sliding block, thereby prompting the operator to move the limiting sliding block to the position. Since the pair of side surfaces of the limiting tooth extends in a V-shaped inclined manner, the limiting tooth is positioned in the positioning groove, and then the limiting sliding block is moved, the side surface of the limiting tooth and the inner wall of the positioning groove generate a component force perpendicular to the moving direction of the limiting sliding block to make the elastic plate deform and make the limiting tooth move out of the positioning groove.

[0017] Further, the charging pile cable pulling balancer in the application, the limiting sliding block is provided with a moving operation rod extending therefrom, and the operation rod extends out of the side surface of the shell. The moving adjustment of the limiting sliding block is realized by pulling the operation rod.

[0018] Further, the charging pile cable pulling balancer in the application is provided with a guide groove at the end face of the wire reel, further comprising a lock block rotatably installed on the shell, the lock block is provided with a guide column, the guide column is slidingly arranged in the guide groove, the guide groove comprises:

[0019] The annular wire unwinding groove is concentric with the rotation direction of the wire reel, the first guide-out opening is arranged on the sidewall of the annular wire unwinding groove, the annular wire unwinding groove is provided with a first one-way guide inclined surface corresponding to the first guide-out opening, the first one-way guide inclined surface extends to the position of the first guide-out opening, when the wire reel rotates in the A direction, the first one-way guide inclined surface is in contact with the guide column, so that the guide column moves out of the annular wire unwinding groove along the first one-way guide inclined surface from the first guide-out opening.

[0020] The stop groove is arranged on the side of the annular wire unwinding groove close to the first guide-out opening in the radial direction, the extension direction of the stop groove is in the form of an arc concentric with the annular wire unwinding groove, the first guide-out opening is connected to the stop groove, the stop groove is provided with a limiting stop wall, the limiting stop wall is arranged on the side of the first guide-out opening corresponding to the rear side in the A direction, so that when the guide column enters the stop groove, the wire reel continues to rotate in the A direction, and the limiting stop wall is in contact with the guide column to lock the wire reel, the sidewall of the side of the stop groove away from the annular wire unwinding groove is provided with a second guide-out opening, and the sidewall of the front end of the stop groove corresponding to the A direction extends to the second guide-out opening in a slanting manner, and the second guide-out opening is connected to the second guide-out opening, when the operator pulls the cable again, the wire reel reversely rotates in the A direction, the guide column is in contact with the second guide-out opening, so that the guide column moves out of the stop groove along the sidewall of the front end of the stop groove corresponding to the A direction from the second guide-out opening.

[0021] The annular reset groove is arranged on the side of the stop groove close to the second guide-out opening in the radial direction, the second guide-out opening penetrates through the sidewall of the annular reset groove, and the second guide-out opening is arranged above the bottom edge of the sidewall of the annular reset groove, so as to prevent the guide column from entering the second guide-out opening when the guide column moves in the annular reset groove.

[0022] The switching groove is connected to the sidewall between the annular wire unwinding groove and the annular reset groove in a slanting manner, the annular reset groove is provided with a second one-way guide inclined surface, the second one-way guide inclined surface extends to the switching groove in a slanting manner, when the wire reel reversely rotates in the A direction, the guide column is in contact with the second one-way guide inclined surface, so that the guide column enters the switching groove along the second one-way guide inclined surface, and then enters the annular wire unwinding groove along the switching groove.

[0023] Based on the above structure, its use principle is: the process of pulling out the cable, the wire reel reverses rotation towards A direction, the guide post enters the switching groove from the annular reset groove, and continuously rotates in the switching groove; when the cable is pulled out long enough, the tension of the cable is released, at this time the wire reel is rotated towards A direction by the action of the vortex spring, in this process the guide post enters the stop groove, and the wire reel is locked by the limiting stop wall against the guide post, at this time the charging plug is inserted into the charging port, which can ensure that the cable is not pulled out due to the action of the vortex spring during charging; after charging, the cable is pulled again, so that the guide post enters the annular reset groove, and the wire reel continues to rotate towards A direction under the action of the vortex spring until reset. It has the advantages of convenient operation.

[0024] Further, the charging pile cable pulling balancer in the application, the locking block is provided with a spring sheet, the guide post is arranged on the spring sheet, and the spring sheet is used for applying a spring force to the guide post towards the guide groove, so as to ensure the depth of the guide post placed in the guide groove.

[0025] Further, the charging pile cable pulling balancer in the application, when the guide post is in contact with the limiting stop wall, the limiting tooth is in a circumferential position corresponding to the positioning groove. As a preferred scheme of the application, the limiting tooth is positioned before being placed in the positioning groove, and has the advantages of simple structure, otherwise a circumferential dense positioning groove is needed to improve the probability of the relative position of the limiting tooth and the positioning groove.

[0026] The above technical scheme can be seen that the utility model has the following beneficial effects:

[0027] The utility model provides a kind of charging pile cable pulling balancer, its principle is: before use, pivot limiting block moves to lock pivot, and limiting slider moves to wire reel unlock, at this time wire reel can rotate relatively around pivot and the elastic potential of vortex spring changes in the process of rotation. When using, the outer end of cable is connected with charging pile cable, and cable is lifted. When charging, cable is pulled out with cable, drives wire reel to rotate, and vortex spring is tightened to balance the weight of cable;After completing charging and pulling out plug, vortex spring releases elastic potential, drives wire reel to rotate in the direction of retracting cable to drive cable reset. To facilitate the storage of cable when charging.

[0028] When the elastic force of the scroll spring on the wire disc is adjusted, first move the limiting slider to the wire disc circumferential locking, use the tool to connect the screwing connection structure on the rotating shaft to prevent the rotating shaft limiting block from being unlocked and completely releasing the elastic potential energy, then move the rotating shaft limiting block to the unlocked state of the rotating shaft, and then rotate the rotating shaft by rotating the rotating shaft through the tool, in this process, the elastic force between the rotating shaft and the wire disc changes, after the adjustment is completed, move the rotating shaft limiting block to lock the rotating shaft, move the limiting slider to unlock the wire disc, and then continue to use. Therefore, the charging pile cable pulling balancer in the application can adjust the elastic force of the driving wire disc rotating in the reset direction, can adapt to different types of cables, has the advantages of wide application range, and can adjust the tightening of the scroll spring after the elastic performance of the scroll spring decreases after long-term use, so as to prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a planar main view in the embodiment of the application;

[0030] Figure 2 is Figure 1 is a schematic view of a hidden front half shell;

[0031] Figure 3 is Figure 2 is a schematic view of a hidden lock block;

[0032] Figure 4 is Figure 3 is a perspective view;

[0033] Figure 5 is an exploded view of the components of the charging pile cable pulling balancer in the embodiment of the application;

[0034] Figure 6 is Figure 5 is an enlarged view of the middle component in

[0035] Figure 7 is Figure 5 is an enlarged view of the lower component in

[0036] Figure 8 is Figure 7 is a partial enlarged view of the circle A area in

[0037] In the figure:

[0038] 1 - shell; 11 - rotating shaft; 111 - lock groove; 112 - wrench groove; 13 - positioning groove;

[0039] 2 - wire disc; 21 - cable; 22 - insertion slot;

[0040] 3 - scroll spring;

[0041] 4 - rotating shaft limiting block; 41 - lock tooth;

[0042] 5 - limit slider; 51 - lock convex; 52 - elastic plate; 521 - limit tooth; 53 - operating rod;

[0043] 6 - limit spring;

[0044] 7 - lock block; 71 - guide column; 72 - elastic sheet;

[0045] 81 - annular exhibition line slot; 811 - first guide opening; 812 - first one-way guide slope; 82 - stop groove; 821 - limit blocking wall; 822 - second guide opening; 83 - annular reset slot; 832 - second one-way guide slope; 84 - switching groove. DETAILED DESCRIPTION

[0046] In combination Figures 1 to 5 The charging pile cable pulling balancer shown in the figure comprises:

[0047] A shell 1 is provided with a rotating shaft 11 rotatingly arranged thereon, and the rotating shaft 11 is provided with a screwing connection structure;

[0048] A rotating shaft limiting block 4 is slidingly connected to the shell 1, and a first locking structure is arranged between the rotating shaft limiting block 4 and the rotating shaft 11, and the first locking structure is used for circumferentially locking the rotating shaft 11, and the rotating shaft limiting block 4 is slidingly switched to switch the locking state of the rotating shaft 11;

[0049] A wire reel 2 is rotatably sleeved on the rotating shaft 11, and the wire reel 2 is provided with a cable 21 wound thereon;

[0050] A volute spring 3 is connected between the rotating shaft 11 and the wire reel 2, specifically, an outer ring end of the volute spring 3 is connected to the wire reel 2, and an inner ring end of the volute spring 3 is connected to the rotating shaft 11, and in the wire reel 2 reset process, the volute spring 3 is used to drive the wire reel 2 to rotate towards the A direction to shrink the cable 21;

[0051] A limit slider 5 is slidingly connected to the shell 1, and a second locking structure is arranged between the limit slider 5 and the wire reel 2, and the second locking structure is used for circumferentially locking the wire reel 2, and the limit slider 5 is slidingly switched to switch the locking state of the wire reel 2.

[0052] In the embodiment, the screwing connection structure is a wrench groove 112 at the end of the rotating shaft 11, and specifically, the wrench groove 112 is an internal hexagonal wrench groove. In the embodiment, the shell 1 is connected by a pair of half-shells connected in the axial direction, and the wire reel 2 is arranged in the shell 1.

[0053] Based on the above structure, the principle of the charging pile cable pulling balancer is: before use, the shaft limiting block 4 is moved to lock the shaft 11, and the limiting slide block 5 is moved to unlock the wire reel 2, at this time the wire reel 2 can rotate relative to the shaft 11 and the elastic potential energy of the spiral spring 3 changes during rotation. When using, the outer end of the cable 21 is connected with the charging pile cable, and the cable is lifted. When charging, the cable 21 is pulled out with the cable, driving the wire reel 2 to rotate, and the spiral spring 3 is tightened to balance the weight of the cable; after completing the charging and pulling out the plug, the spiral spring 3 releases the elastic potential energy, driving the wire reel 2 to rotate towards the direction of the retracted cable 21, to drive the cable to reset. To facilitate the storage of the cable during charging.

[0054] When adjusting the elastic force of the spiral spring 3 on the wire reel 2, first move the limiting slide block 5 to the circumferential locking of the wire reel 2, use the tool to connect the screwing connection structure on the shaft 11 to prevent the shaft limiting block 4 from being unlocked and completely releasing the elastic potential energy, then move the shaft limiting block 4 to the unlocked state of the shaft 11, and then rotate the shaft 11 by rotating the tool, in this process the elastic force between the shaft 11 and the wire reel 2 changes, after adjustment, move the shaft limiting block 4 to lock the shaft 11, and move the limiting slide block 5 to unlock the wire reel 2, so that it can continue to be used. Therefore, the charging pile cable pulling balancer in the present application can adjust the elastic force driving the wire reel 2 to rotate in the reset direction, can adapt to different types of cables, has the advantage of wide application range, and after the elastic performance of the spiral spring 3 decreases after long-term use, the spiral spring 3 can be adjusted to tighten, to improve the service life.

[0055] In combination Figure 2 As shown in the figure, in the embodiment, the first locking structure includes a lock tooth 41 provided at one end of the shaft limiting block 4 near the shaft 11 and a lock groove 111 provided on the side of the shaft 11 corresponding to the lock tooth 41, the lock groove 111 is provided on the axial outside of the wire reel 2, and the lock groove 111 is arranged in the circumferential direction of the shaft 11. In this embodiment, it also includes a limiting spring 6, which is elastically connected with the shaft limiting block 4, and the limiting spring 6 is used to apply an elastic force to the shaft limiting block 4 in the direction of the shaft 11. Specifically, the limiting spring 6 is a compression spring, which abuts against one side of the shaft limiting block 4 away from the shaft 11. The limiting spring 6 is provided to facilitate the reset of the shaft limiting block 4 in the direction of locking the shaft 11. When the shaft 11 is locked, the limiting spring 6 also ensures that the shaft limiting block 4 can abut against the shaft 11, preventing the shaft limiting block 4 and the shaft 11 from being unlocked during use.

[0056] In combination Figure 2As shown, in the embodiment, the second locking structure comprises a locking protrusion 51 arranged on the limiting slider 5, and a set of insertion slots 22 arranged on the end face of the wire reel 2 in a circumferential direction; the locking protrusion 51 is arranged in the insertion slot 22 to lock the wire reel 2 in a circumferential direction; when the wire reel 2 is unlocked, the locking protrusion 51 is moved to the radial outside of the set of insertion slots 22. In the embodiment, the limiting slider 5 is provided with an elastic plate 52 on the side surface, and the elastic plate 52 is provided with a limiting tooth 521, and the pair of side surfaces of the limiting tooth 521 are inclinedly extended in a V shape, and the limiting tooth 521 is combined with Figure 8 As shown, corresponding to the limiting tooth 521, the shell 1 is provided with a pair of positioning grooves 13 which are adapted to the shape of the limiting tooth 521, and the pair of positioning grooves 13 are arranged in a spaced manner in the moving direction of the limiting slider 5, and the limiting slider 5 is moved to switch the cooperation of the limiting tooth 521 in the pair of positioning grooves 13 to realize the switching of the locking state of the wire reel 2. The principle is that when the limiting slider 5 is moved to the position corresponding to the limiting tooth 521 and the positioning groove 13, the elastic plate 52 presses the limiting tooth 521 into the positioning groove 13 to generate a resistance to the continuous sliding of the limiting slider 5, thereby prompting the operator to move the limiting slider 5 to the position, and because the pair of side surfaces of the limiting tooth 521 are inclinedly extended in a V shape, the limiting tooth 521 is positioned in the positioning groove 13, and then the limiting slider 5 is moved, and the side surface of the limiting tooth 521 and the inner wall of the positioning groove 13 generate a component force perpendicular to the moving direction of the limiting slider 5 to make the elastic plate 52 deform to make the limiting tooth 521 move out of the positioning groove 13. In the embodiment, the limiting slider 5 is an injection molding part, and the elastic plate 52 is integrally formed with the limiting slider 5. In the embodiment, the limiting slider 5 is provided with a moving operation rod 53 which is extended on the limiting slider 5, and the operation rod 53 is extended out of the side surface of the shell 1. The moving adjustment of the limiting slider 5 is realized by pulling the operation rod 53.

[0057] Further, as shown in Figure 3 , Figure 4 and Figure 7 , in the embodiment, the end face of the wire reel 2 is provided with a guide groove, and the shell 1 is further provided with a locking block 7 which is rotatably arranged on the shell 1, and the locking block 7 is provided with a guide column 71 which is slidably arranged in the guide groove, and the guide groove comprises:

[0058] an annular wire unwinding groove 81 which is concentric with the rotating direction of the wire reel 2, and the side wall of the annular wire unwinding groove 81 is provided with a first guide opening 811, and the annular wire unwinding groove 81 is provided with a first one-way guide inclined surface 812 corresponding to the first guide opening 811, and the first one-way guide inclined surface 812 is extended to the position of the first guide opening 811 in an inclined manner, and when the wire reel 2 rotates in the A direction, the first one-way guide inclined surface 812 is in contact with the guide column 71 to make the guide column 71 move out of the annular wire unwinding groove 81 along the first one-way guide inclined surface 812;

[0059] A stop groove 82 is arranged on the side of the annular wire unwinding groove 81 close to the first guide opening 811 in the radial direction. The extension direction of the stop groove 82 is in the form of an arc concentric with the annular wire unwinding groove 81. The first guide opening 811 is connected to the stop groove 82. A limiting baffle 821 is arranged on the stop groove 82. The limiting baffle 821 is arranged on the side of the first guide opening 811 corresponding to the rear side in the A direction. When the guide column 71 enters the stop groove 82, the wire reel 2 continues to rotate in the A direction. The wire reel 2 is locked by the limiting baffle 821 abutting against the guide column 71. A second guide opening 822 is arranged on the side wall of the stop groove 82 away from the annular wire unwinding groove 81. The side wall of the front end of the stop groove 82 corresponding to the A direction extends obliquely to the second guide opening 822. When the operator pulls the cable again, the wire reel 2 reversely rotates in the A direction. The guide column 71 abuts against the second guide opening 822, so that the guide column 71 moves out of the stop groove 82 along the side wall of the front end of the stop groove 82 corresponding to the A direction from the second guide opening 822.

[0060] An annular reset groove 83 is arranged on the side of the stop groove 82 close to the second guide opening 822 in the radial direction. The second guide opening 822 penetrates the side wall of the annular reset groove 83. The second guide opening 822 is arranged above the bottom edge of the side wall of the annular reset groove 83, so as to prevent the guide column 71 from entering the second guide opening 822 when the guide column 71 moves in the annular reset groove 83.

[0061] A switching groove 84 obliquely connects the side wall between the annular wire unwinding groove 81 and the annular reset groove 83. The annular reset groove 83 is provided with a second one-way guide inclined surface 832. The second one-way guide inclined surface 832 extends obliquely to the switching groove 84. When the wire reel 2 reversely rotates in the A direction, the guide column 71 abuts against the second one-way guide inclined surface 832, so that the guide column 71 enters the switching groove 84 along the second one-way guide inclined surface 832, and then enters the annular wire unwinding groove 81 along the switching groove 84. Based on the above structure, the use principle is as follows: during the pulling of the cable 21, the wire reel 2 reversely rotates in the A direction. The guide column 71 enters the switching groove 84 from the annular reset groove 83 and continuously rotates in the switching groove 84. When the cable 21 is pulled long enough, the pulling force of the cable 21 is released. At this time, the wire reel 2 rotates in the A direction under the action of the vortex spring 3. In this process, the guide column 71 enters the stop groove 82. The wire reel 2 is locked by the limiting baffle 821 abutting against the guide column 71. At this time, the charging plug is inserted into the charging port, so as to ensure that the cable is not pulled out due to the action of the vortex spring 3 during the charging process. After the charging is completed, the cable is pulled again, so that the guide column 71 enters the annular reset groove 83. Under the action of the vortex spring 3, the wire reel 2 continues to rotate in the A direction until it is reset. The operation is convenient. In the embodiment, the stop groove 82 and the switching groove 84 are uniformly arranged in three groups in the A direction.

[0062] In the embodiment, the lock block 7 is provided with an elastic sheet 72, and the guide column 71 is arranged on the elastic sheet 72; the elastic sheet 72 is used to apply an elastic force to the guide column 71 towards the guide groove, so as to ensure the depth of the guide column 71 placed in the guide groove. In the embodiment, the lock block 7, the guide column 71 and the elastic sheet 72 are integrally formed by injection molding.

[0063] In the embodiment, when the guide column 71 is in contact with the limiting stop wall 821, the limiting tooth 521 corresponds to the circumferential position of the positioning groove 13. Therefore, the limiting tooth 521 is positioned before being placed in the positioning groove 13, and has the advantage of simple structure; otherwise, the circumferential positioning groove 13 needs to be densely arranged to improve the probability of the position of the limiting tooth 521 corresponding to the position of the positioning groove 13. In the embodiment, the number of the positioning groove 13 is 3, and the positioning grooves 13 are evenly arranged in the A direction.

[0064] The technical principle of the utility model is described above in combination with specific embodiments, and these descriptions are only for explaining the principle of the utility model, and cannot be interpreted as limiting the protection scope of the utility model in any way. Based on the explanation herein, the person skilled in the art can think of other specific embodiments of the utility model without creative labor, and these embodiments will fall within the protection scope of the utility model.

Claims

1. A charging post cable pull balancer characterized by: The utility model relates to a kind of cable reel, including: Shell (1), rotationally arranged shaft (11) is provided on shell (1), and the twist connection structure is provided on the shaft (11); Shaft limiting block (4);The shaft limiting block (4) is slidably connected on shell (1), and the first locking structure is arranged between the shaft limiting block (4) and the shaft (11), and the first locking structure is used to circumferentially lock the shaft (11), and the shaft limiting block (4) is slid to switch the locking state of the shaft (11); Wire reel (2), wire reel (2) is rotatably arranged on the shaft (11), and the wire reel (2) is provided with cable (21), and the cable (21) is arranged on the wire reel (2); Spiral spring (3), the spiral spring (3) is connected between the shaft (11) and the wire reel (2), and during the reset of the wire reel (2), the spiral spring (3) is used to drive the wire reel (2) to rotate towards A direction to shrink cable (21); Limiting slide block (5), the limiting slide block (5) is slidably connected on shell (1), and the second locking structure is arranged between the limiting slide block (5) and the wire reel (2), and the second locking structure is used to circumferentially lock the wire reel (2), and the limiting slide block (5) is slid to switch the locking state of the wire reel (2).

2. A charging station cable pull balancer according to claim 1, wherein: The first locking structure includes lock tooth (41) arranged at one end of the shaft limiting block (4) close to the shaft (11) and lock slot (111) arranged on the side of the shaft (11) corresponding to the lock tooth (41), the lock slot (111) is arranged on the axial outer side of the wire reel (2), and the lock slot (111) is arranged in the circumferential direction of the shaft (11).

3. A charging station cable pull balancer according to claim 1, wherein: The twist connection structure is spanner slot (112) of the end of the shaft (11).

4. A charging station cable pull balancer according to claim 2, wherein: Further comprising limiting spring (6), the limiting spring (6) is elastically connected with the shaft limiting block (4), and the limiting spring (6) is used to apply elastic force to the shaft limiting block (4) towards the direction of the shaft (11).

5. A charging station cable pull balancer according to claim 1, wherein: The second locking structure includes lock convex (51) arranged on the limiting slide block (5), and a group of insertion slots (22) are arranged on the end surface of the wire reel (2) in the circumferential direction; The lock convex (51) is arranged in the insertion slot (22) to circumferentially lock the wire reel (2);When the wire reel (2) is unlocked, the lock convex (51) moves to the radial outer side of the group of insertion slots (22).

6. A charging station cable pull balancer according to claim 5, wherein: The side of the limiting slide block (5) is provided with elastic plate (52), and the limiting tooth (521) is arranged on the elastic plate (52), one pair of sides of the limiting tooth (521) is inclinedly extended in V shape, corresponding to the limiting tooth (521), a pair of positioning grooves (13) are arranged on the shell (1) and are adapted to the shape of the limiting tooth (521), and the pair of positioning grooves (13) are arranged in the moving direction of the limiting slide block (5) and are spaced apart, the limiting slide block (5) is moved to the limiting tooth (521) in the pair of positioning grooves (13) to switch cooperation, to realize the switching of the locking state of the wire reel (2).

7. A charging station cable pull balancer according to claim 5, wherein: The moving operating lever (53) is arranged on the limiting slide block (5), and the operating lever (53) extends out of the side of the shell (1).

8. A charging station cable pull balancer according to claim 6, wherein: The wire disc (2) end face is provided with a guide groove, further comprising a lock block (7) rotatably installed on the shell (1), the lock block (7) is provided with a guide column (71), the guide column (71) is slidably arranged in the guide groove, the guide groove comprises: An annular wire unwinding groove (81) is concentric with the rotation direction of the wire disc (2), the annular wire unwinding groove (81) is provided with a first guide opening (811) on the side wall, the annular wire unwinding groove (81) is provided with a first one-way guide inclined surface (812) corresponding to the first guide opening (811), the first one-way guide inclined surface (812) extends to the position of the first guide opening (811), when the wire disc (2) rotates in the A direction, the first one-way guide inclined surface (812) is in contact with the guide column (71), so that the guide column (71) moves out of the annular wire unwinding groove (81) along the first one-way guide inclined surface (812) from the first guide opening (811); A stop groove (82) is arranged on the side of the annular wire unwinding groove (81) near the first guide opening (811), the extension direction of the stop groove (82) is arc-shaped and concentric with the annular wire unwinding groove (81), the first guide opening (811) is connected to the stop groove (82), the stop groove (82) is provided with a limiting baffle (821), the limiting baffle (821) is arranged on the side of the first guide opening (811) corresponding to the rear side of the A direction, the side wall of the side of the stop groove (82) away from the annular wire unwinding groove (81) is provided with a second guide opening (822), the side wall of the front end of the stop groove (82) corresponding to the A direction extends to the second guide opening (822) in a slanting manner, An annular reset groove (83) is arranged on the side of the stop groove (82) near the second guide opening (822), the second guide opening (822) penetrates the side wall of the annular reset groove (83), and the second guide opening (822) is arranged above the side wall bottom edge of the annular reset groove (83); A switching groove (84) is arranged on the side wall between the annular wire unwinding groove (81) and the annular reset groove (83) in a slanting manner, the annular reset groove (83) is provided with a second one-way guide inclined surface (832), the second one-way guide inclined surface (832) extends to the switching groove (84) in a slanting manner, when the wire disc (2) rotates in the reverse direction of the A direction, the guide column (71) is in contact with the second one-way guide inclined surface (832), so that the guide column (71) enters the switching groove (84) along the second one-way guide inclined surface (832), and then enters the annular wire unwinding groove (81) along the switching groove (84).

9. A charging station cable pull balancer according to claim 8, wherein: The lock block (7) is provided with a spring sheet (72), the guide column (71) is arranged on the spring sheet (72), and the spring sheet (72) is used for applying a spring force to the guide column (71) towards the guide groove.

10. A charging station cable pull balancer according to claim 9, wherein: When the guide column (71) is in contact with the limiting baffle (821), the limiting teeth (521) correspond to the circumferential position of the positioning groove (13).

Images