Cable pay-off device

Abstract

The utility model provides a cable pay-off device, and belongs to the technical field of cable pay-off. The rotating shaft is arranged at the top of the supporting assembly and rotationally connected with the supporting assembly, the rotating shaft is fixedly sleeved with a rotating frame, and a rolling part is arranged on the edge of the bottom of the rotating frame; the cable drum is arranged on the outer side of the rotating shaft in a sleeving mode, and the rotating frame supports the cable drum so that installation of the cable drum can be achieved; after installation is completed, when a cable on the cable drum is manually pulled, the rotating stand can roll on the two buffer assemblies through the rolling parts to assist the rotating stand in rotating, so that the rotating convenience of the rotating stand and the cable drum is improved, more time and labor are saved, and the pay-off efficiency is improved; meanwhile, the buffering assembly can buffer the rolling part so as to eliminate impact of local stress of the rolling part.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cable laying, and particularly to a cable laying device. Background Art

[0002] Currently, in almost all industrial automation fields, power construction is an essential process, and cable laying in power construction is an important link in power construction.

[0003] Cable laying devices are commonly used in power construction. Existing cable laying devices mostly adopt the horizontal cross-frame placement or vertical placement methods. When manually pulling the cable, it is time-consuming and laborious, increasing the labor cost and having low laying efficiency. In addition, when the cable reel rotates to lay the cable, the cable reel shakes, and it is easy to have a situation of rotational jamming, resulting in poor laying stability. Summary of the Utility Model

[0004] One technical problem to be solved by the present disclosure is that the existing cable laying device is not convenient for manual operation, has a large labor cost, and has low laying efficiency and poor stability.

[0005] To solve the above technical problem, an embodiment of the present disclosure provides a cable laying device, including:

[0006] A support assembly;

[0007] A rotating shaft, the rotating shaft is arranged at the top of the support assembly and is rotationally connected to the support assembly. A rotating frame is fixedly sleeved outside the rotating shaft, and a rolling part is arranged at the bottom edge of the rotating frame; and

[0008] Two buffer assemblies, the two buffer assemblies are oppositely arranged at the top of the support assembly and cooperate to enclose the periphery of the rotating shaft. The two buffer assemblies are symmetrically distributed about the axis of the rotating shaft and are used for rolling cooperation with the rolling part and buffering the rolling part.

[0009] In some embodiments, the buffer assembly includes:

[0010] A first arc plate, the first arc plate is arranged at the top of the support assembly;

[0011] A second arc plate, the second arc plate is arranged on the top of the first arc plate, and an arc-shaped groove is opened at the top of the second arc plate;

[0012] A third arc plate, the third arc plate is arranged at the opening of the arc-shaped groove; and

[0013] An elastic part, the elastic part is arranged inside the arc-shaped groove and is connected to the second arc plate and the third arc plate.

[0014] In some embodiments, the elastic part includes:

[0015] The column, one end of the column is connected to the bottom of the third arc plate, and the other end of the column movably penetrates through the second arc plate; and

[0016] The first spring, the first spring is sleeved on the side wall of the column, one end of the first spring is connected to the bottom of the third arc plate, and the other end of the first spring is connected to the inner bottom of the arc-shaped groove.

[0017] In some embodiments, the elastic part further includes a snap ring, the snap ring is clamped on the side wall of the column and is located below the second arc plate.

[0018] In some embodiments, the number of the elastic parts includes multiple groups, and the multiple groups of elastic parts are evenly distributed along the inside of the arc-shaped groove.

[0019] In some embodiments, the cable pay-off device further includes:

[0020] The mounting plate, the mounting plate is arranged on the top of the support assembly;

[0021] The mounting seat, the mounting seat is arranged on the top of the mounting plate, and two bearing cavities are arranged up and down inside the mounting seat; and

[0022] Two rolling bearings, the two rolling bearings are respectively arranged inside the two bearing cavities, and the bottom end of the rotating shaft penetrates through the mounting seat and the two rolling bearings and is connected to the two rolling bearings.

[0023] In some embodiments, the cable pay-off device further includes:

[0024] The adjusting seat, the adjusting seat is arranged on the top of the mounting seat, a cavity is arranged inside the adjusting seat, and the rotating shaft movably penetrates through the adjusting seat and the cavity;

[0025] The ratchet wheel, the ratchet wheel is arranged inside the cavity and is fixedly sleeved on the side wall of the rotating shaft; and

[0026] The locking part, the locking part is arranged inside the cavity, and the locking part is used to cooperate with the ratchet wheel for one-way locking.

[0027] In some embodiments, the locking part includes:

[0028] The pawl, the pawl is rotatably arranged inside the cavity, and the end of the pawl is located between two adjacent ratchet teeth of the ratchet wheel; and

[0029] The second spring, one end of the second spring is connected to the pawl, and the other end of the second spring is connected to the inner wall of the cavity.

[0030] In some embodiments, the rolling part includes multiple groups of universal ball joints, and the multiple groups of universal ball joints are circumferentially distributed along the bottom edge of the rotating frame.

[0031] In some embodiments, the support assembly includes:

[0032] A support plate, with two buffer components arranged on the top of the support plate;

[0033] Multiple sets of universal wheels, with multiple sets of universal wheels arranged at the bottom of the support plate; and

[0034] An armrest, with the armrest arranged at the top edge of the support plate.

[0035] Through the above technical solution, the cable pay - out device provided by the present disclosure sleevs the cable reel on the outside of the rotating shaft, and the rotating frame supports the cable reel to achieve the installation of the cable reel; after the installation is completed, when manually pulling the cable on the cable reel, the rotating frame can roll on the two buffer components through the rolling part to assist the rotation of the rotating frame, thereby improving the convenience of the rotation of the rotating frame and the cable reel, saving more time and effort, that is, improving the pay - out efficiency; at the same time, the buffer components can buffer the rolling part to eliminate the impact of the local stress of the rolling part. On the one hand, it ensures the stability of the rotational support of the rotating frame and its rolling part, that is, it ensures the stability of the rotation of the cable reel, and on the other hand, it also improves the reliability of the buffer components as a support structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 is a schematic structural diagram of the cable pay - out device disclosed in the embodiment of the present disclosure;

[0038] Figure 2 is a schematic structural diagram of the rotating frame and the buffer components in the cable pay - out device disclosed in the embodiment of the present disclosure;

[0039] Figure 3 is a bottom view of the second arc plate in the cable pay - out device disclosed in the embodiment of the present disclosure;

[0040] Figure 4 is Figure 3 an enlarged schematic diagram of area A in

[0041] Figure 5 is a schematic diagram of the internal structure of the adjusting seat in the cable pay - out device disclosed in the embodiment of the present disclosure;

[0042] Figure 6 is a cross - sectional view of the mounting seat in the cable pay - out device disclosed in the embodiment of the present disclosure.

[0043] Description of the reference numerals:

[0044] 1. Handrail; 2. Support plate; 3. Universal wheel; 4. Support assembly; 5. Cable reel; 6. Rotary frame; 7. Second arc plate; 8. Third arc plate; 9. First arc plate; 10. Mounting plate; 11. Rotating shaft; 12. Adjusting seat; 13. Mounting seat; 14. Rolling part; 15. Inclined surface; 16. Arc-shaped groove; 17. First spring; 18. Cylinder; 19. Snap ring; 20. Cavity; 21. Ratchet; 22. Pawl; 23. Second spring; 24. Bearing cavity; 25. Rolling bearing. Specific embodiments

[0045] The following further describes in detail the embodiments of the present disclosure in conjunction with the drawings and examples. The detailed description and drawings of the following examples are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but including all technical solutions falling within the scope of the claims.

[0046] These embodiments of the present disclosure are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values described in these embodiments should be construed as merely exemplary, rather than as limitations.

[0047] It should be noted that in the description of the present disclosure, unless otherwise specified, "a plurality" means greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship only for the convenience of describing the present disclosure 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 thus cannot be construed as a limitation of the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0048] In addition, the "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. The terms "including" or "comprising" and the like mean that the elements before this word are covered by the elements listed after this word, and do not exclude the possibility of also covering other elements.

[0049] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0050] All terms used in this disclosure have the same meanings as those understood by those of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0051] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be regarded as part of the specification.

[0052] As Figure 1 and Figure 2 shown, the cable unreeling device may include a support assembly 4, a rotating shaft 11, and two buffer assemblies. Specifically, the rotating shaft 11 may include a rotating frame 6, and the rotating frame 6 may include a rolling portion 14.

[0053] The rotating shaft 11 is disposed on the top of the support assembly 4 and is rotatably connected to the support assembly 4. A rotating frame 6 is fixedly sleeved outside the rotating shaft 11, and a rolling portion 14 is provided at the bottom edge of the rotating frame 6. The two buffer assemblies are oppositely disposed on the top of the support assembly 4 and cooperate to surround the periphery of the rotating shaft 11. The two buffer assemblies are symmetrically distributed about the axis of the rotating shaft 11 and are used for rolling cooperation with the rolling portion 14 and buffering the rolling portion 14.

[0054] When it is necessary to install the cable reel 5, the cable reel 5 is sleeved outside the rotating shaft 11 and placed on the top of the rotating frame 6. Since the cable reel 5 is heavy and the friction between the cable reel 5 and the rotating frame 6 is also large, when pulling the cable on the cable reel 5, the cable reel 5 can drive the rotating frame 6 to rotate synchronously. During the rotation of the rotating frame 6, the rolling portion 14 at its bottom rolls in cooperation with the two buffer assemblies to assist the rotation of the rotating frame 6. In addition, when the rolling portion 14 rolls along the buffer assembly, the buffer assembly can synchronously buffer the rolling portion 14 to offset the impact of part of the local rolling stress.

[0055] In traditional cable laying devices, a balance frame placement or vertical placement method is generally adopted. However, both methods are time-consuming and laborious when manually pulling the cable, increasing the labor cost and resulting in low laying efficiency. In addition, when the cable reel rotates to lay the cable, the cable reel is prone to shaking and tilting. When it shakes and tilts, it is easy to have rotational jamming, resulting in poor laying stability. In an embodiment of the present disclosure, a method of rolling cooperation between the rolling part 14 and the buffer assembly is adopted, effectively improving the convenience of the rotation of the rotating frame 6 and the cable reel 5, being more time-saving and labor-saving, that is, improving the laying efficiency of the cable reel 5. In addition, by using the buffer assembly to buffer the rolling part 14, the impact of local stress of the rolling part 14 is eliminated. On the one hand, the stability of the rotational support for the rotating frame 6 and its rolling part 14 is ensured, that is, the stability of the rotation of the cable reel 5 is ensured. On the other hand, the reliability of the buffer assembly as a support structure is also improved, increasing the service life of the cable laying device.

[0056] In some embodiments, a fixing fixture known to those skilled in the art for abutting / limiting / clamping and fixing the cable reel 5 can be provided on the rotating frame 6, such as two clamping plates with adjustable spacing by bolts.

[0057] In some embodiments, the buffer assembly can include various forms known to those skilled in the art, such as rubber pads, thermoplastic elastomers, etc. However, in a preferred embodiment of the present disclosure, further considering the buffering effect and stability of the buffer assembly, the specific form of the buffer assembly can be as Figure 2-4 shown. Specifically, in Figure 2 、 Figure 3 and Figure 4 the buffer assembly can include a first arc plate 9, a second arc plate 7, a third arc plate 8 and an elastic part. Specifically, the second arc plate 7 can include an arc-shaped groove 16.

[0058] The first arc plate 9 is arranged on the top of the support assembly 4, the second arc plate 7 is arranged on the top of the first arc plate 9, and an arc-shaped groove 16 is formed at the top of the second arc plate 7. The third arc plate 8 is arranged at the opening of the arc-shaped groove 16, and the elastic part is arranged inside the arc-shaped groove 16 and is connected to the second arc plate 7 and the third arc plate 8.

[0059] When the cable reel 5 and the turntable 6 rotate, the rolling part 14 rolls along the tops of the two third arc plates 8. When the rolling part 14 rolls, the third arc plate 8 can synchronously compress the elastic part and enter the interior of the arc-shaped groove 16. At this time, on the one hand, the arc-shaped groove 16 limits the third arc plate 8 to ensure the reliability of the rolling of the rolling part 14, and on the other hand, the elastic part gives the rolling part 14 a buffer to offset the impact of part of the local stress. In addition, when pulling the cable on the cable reel 5, affected by the pulling direction of the cable, the cable reel 5 is prone to slight inclination to adapt to different pulling directions. When the cable reel 5 is slightly inclined, the elastic part can deform adaptively to maintain the stable rolling of the rolling part 14 on the third arc plate 8, that is, to maintain the stable rotation of the cable reel 5. Thus, it effectively avoids the situation where the rolling part 14 abuts against the third arc plate 8, resulting in difficult rolling.

[0060] In some embodiments, further considering the reliability of the rolling of the rolling part 14 on the third arc plate 8, the third arc plate 8 is slidably connected to the inner wall of the arc-shaped groove 16, that is, the arc spacing of the third arc plate 8 is less than or equal to the arc spacing of the arc-shaped groove 16. Specifically, the way of this sliding connection includes but is not limited to the way of cooperation between a chute and a slider known to those skilled in the art, etc. In addition, for the initial relative position relationship between the third arc plate 8 and the second arc plate 7, it includes but is not limited to that the third arc plate 8 is located above the second arc plate 7, the top of the third arc plate 8 is flush with the top of the second arc plate 7, the third arc plate 8 is located inside the arc-shaped groove 16, etc.

[0061] In some embodiments, as Figure 4 shown, the elastic part may include a cylinder 18 and a first spring 17.

[0062] One end of the cylinder 18 is connected to the bottom of the third arc plate 8, and the other end of the cylinder 18 movably penetrates through the second arc plate 7. The first spring 17 is sleeved on the side wall of the cylinder 18, one end of the first spring 17 is connected to the bottom of the third arc plate 8, and the other end of the first spring 17 is connected to the inner bottom of the arc-shaped groove 16.

[0063] When the third arc plate 8 is rolled and extruded by the rolling part 14, the third arc plate 8 moves downward and compresses the first spring 17, and the cylinder 18 extends downward along the through hole. The first spring 17 can elastically support the third arc plate 8 and the rolling part 14, and the cylinder 18 can guide the movement of the third arc plate 8 to further improve the stability of the rolling of the rolling part 14 on the third arc plate 8.

[0064] In some embodiments, as Figure 4 shown, the elastic part may further include a snap ring 19. Specifically, the snap ring 19 is clamped on the side wall of the cylinder 18 and is located below the second arc plate 7.

[0065] When the cylinder 18 is reset, the snap ring 19 can cooperate with the bottom of the second arc plate 7 to limit the reset height of the third arc plate 8, so as to ensure that the third arc plate 8 can be stably at a preset height, facilitating the rolling cooperation between the rolling part 14 and the third arc plate 8.

[0066] In some embodiments, the number of elastic parts can include multiple groups. Specifically, the multiple groups of elastic parts are evenly distributed along the inside of the arc-shaped groove 16.

[0067] By adopting the method of evenly distributing multiple groups of elastic parts along the inside of the arc-shaped groove 16, the rolling stability of the rolling part 14 on the third arc plate 8 can be further improved.

[0068] In some embodiments, such as Figure 2 and Figure 3 shown, further considering the reliability of the rolling of the rolling part 14 on the third arc plate 8, the cross-sections of the first arc plate 9, the second arc plate 7, and the third arc plate 8 are in a T shape, so as to increase the contact surface between the third arc plate 8 and the rolling part 14 while saving materials.

[0069] In some embodiments, such as Figure 3 and Figure 4 shown, the number of elastic parts in each group can include two. Specifically, the two elastic parts are symmetric about the first arc plate 9, which can effectively balance the force on the second arc plate 7 and improve the reliability of the first arc plate 9 and the second arc plate 7.

[0070] In some embodiments, such as Figure 2 shown, inclined surfaces 15 are provided at both ends of the third arc plate 8, and the inclined surfaces 15 are used to guide the rolling part 14, so as to facilitate the rolling cooperation between the rolling part 14 and the third arc plate 8.

[0071] In some embodiments, the specific form of the turntable 6 includes, but is not limited to, the polygonal shape as Figure 2 shown, and can also include a circular plate, a circular ring, etc.

[0072] In some embodiments, such as Figure 2 , Figure 3 and Figure 6 shown, the cable pay-off device can also include a mounting plate 10, a mounting seat 13, and two groups of rolling bearings 25. Specifically, the mounting seat 13 includes two groups of bearing cavities 24.

[0073] The mounting plate 10 is disposed on the top of the support assembly 4. Specifically, the mounting plate 10 can be connected to the top of the support assembly 4 by bolts, and the mounting plate 10 can include a flange. The mounting seat 13 is disposed on the top of the mounting plate 10. Specifically, the mounting seat 13 can be connected to the top of the mounting plate 10 by bolts or a connecting plate. Two sets of bearing cavities 24 are formed in the mounting seat 13 and are distributed vertically. Two sets of rolling bearings 25 are respectively disposed inside the two sets of bearing cavities 24. The bottom end of the rotating shaft 11 penetrates through the mounting seat 13 and the rolling bearings 25 and is connected to the two sets of rolling bearings 25. Specifically, the outer shaft of the rolling bearing 25 is fixedly disposed inside the bearing cavity 24, and the inner shaft of the rolling bearing 25 is fixedly connected to the rotating shaft 11.

[0074] The method of fixing the mounting plate 10 and the mounting seat 13 with bolts can form a structure for stably supporting the rotating shaft 11. At the same time, the method of connecting the two sets of rolling bearings 25 with the rotating shaft 11 can ensure the stable and reliable rotation of the rotating shaft 11.

[0075] In some embodiments, such as Figure 3 and Figure 5 shown, the cable pay-off device may further include an adjusting seat 12, a ratchet 21, and a locking portion. Specifically, the adjusting seat 12 may include a cavity 20.

[0076] The adjusting seat 12 is disposed on the top of the mounting seat 13. A cavity 20 is formed inside the adjusting seat 12, and the rotating shaft 11 movably penetrates through the adjusting seat 12 and the cavity 20. The ratchet 21 is disposed inside the cavity 20 and is fixedly sleeved on the side wall of the rotating shaft 11. The locking portion is disposed inside the cavity 20, and the locking portion is used to cooperate with the ratchet 21 for one-way locking.

[0077] When pulling the cable on the cable reel 5, the cable reel 5 drives the rotating frame 6 and the rotating shaft 11 to rotate synchronously for cable pay-off. When the rotating shaft 11 rotates, it drives the ratchet 21 to rotate synchronously. At this time, the locking portion does not lock the ratchet 21. When the rotating shaft 11 rotates in the reverse direction, the locking portion locks the ratchet 21 to limit the rotating shaft 11 to move only in one direction. The method of cooperating the ratchet 21 with the locking portion can ensure the stable pay-off of the cable, prevent the cable from being wound back, effectively control the pay-off rate of the cable, and improve the stability of the pay-off.

[0078] In some embodiments, such as Figure 5 shown, the locking portion may include a pawl 22 and a second spring 23. Specifically, the specific structure of the locking portion may further include, but is not limited to, various structures in which the pawl 22 and the ratchet 21 cooperate known to those skilled in the art.

[0079] The pawl 22 is rotatably arranged inside the cavity 20, and the end of the pawl 22 is located between two adjacent ratchet teeth of the ratchet wheel 21. One end of the second spring 23 is connected to the pawl 22, and the other end of the second spring 23 is connected to the inner wall of the cavity 20.

[0080] When the cable reel 5 rotates for wire laying, the ratchet teeth of the ratchet wheel 21 push the pawl 22 away from between the adjacent ratchet teeth and compress the second spring 23. Then the pawl 22 resets to between the next adjacent ratchet teeth under the elastic force of the second spring 23, and this cycle repeats. When the cable reel 5 rotates in the reverse direction, the ratchet teeth abut against the end of the pawl 22 to lock the rotation of the ratchet wheel 21. By adopting this method, the one-way rotation locking of the rotating shaft 11 can be stably achieved.

[0081] In some embodiments, as Figure 3 shown, the specific structure of the rolling part 14 may include multiple groups of universal ball joints. Specifically, multiple groups of universal ball joints are circumferentially distributed along the bottom edge of the rotating frame 6. By adopting the universal ball joint method, rolling in any direction can be performed, further improving the convenience of the rotation of the rotating frame 6.

[0082] In some embodiments, as Figure 1 shown, the support assembly 4 may include a support plate 2, multiple groups of universal wheels 3, and a handrail 1.

[0083] Two buffer assemblies are arranged on the top of the support plate 2. Specifically, two first arc plates 9 can be connected and fixed to the support plate 2 by bolts. Multiple groups of universal wheels 3 are arranged at the bottom of the support plate 2 and can be distributed along the corners of the support plate 2, and the handrail 1 is arranged on the top edge of the support plate 2.

[0084] When it is necessary to perform cable wire laying at a predetermined position, the cable reel 5 can be moved by pushing the handrail 1. The trolley structure composed of multiple groups of universal wheels 3 and the support plate 2 can effectively save manpower and avoid the situation that it is not conducive to handling due to the excessive weight of the cable reel 5. It saves the use of forklifts and hydraulic mobile vehicles at the construction site, that is, it saves the use frequency of construction tools at the construction site, reduces the construction cost, and improves the construction efficiency.

[0085] Through the above technical solutions, the cable pay-off device provided by the present disclosure realizes the installation of the cable reel 5 by sleeving the cable reel 5 outside the rotating shaft 11 and supporting the cable reel 5 by the rotating frame 6. After the installation is completed, when manually pulling the cable on the cable reel 5, the rotating frame 6 can roll on the two buffer components through the rolling part 14 to assist the rotation of the rotating frame 6, thereby improving the convenience of the rotation of the rotating frame 6 and the cable reel 5, saving more time and effort, that is, improving the pay-off efficiency. At the same time, the buffer components can buffer the rolling part 14 to eliminate the impact of the local stress of the rolling part 14. On the one hand, it ensures the stability of the rotational support of the rotating frame 6 and its rolling part 14, that is, it ensures the stability of the rotation of the cable reel 5. On the other hand, it also improves the reliability of the buffer components as a support structure.

[0086] So far, the embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0087] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A cable pay-off device, characterized in that: include: Support assembly (4); A rotating shaft (11), the rotating shaft (11) is arranged at the top of the supporting assembly (4) and is rotatably connected to the supporting assembly (4), a rotating frame (6) is fixedly sleeved outside the rotating shaft (11), and a rolling portion (14) is arranged at the bottom edge of the rotating frame (6); and Two buffer components are arranged on the top of the support component (4) relative to each other and cooperate to surround the periphery of the rotating shaft (11). The two buffer components are symmetrically distributed about the axis of the rotating shaft (11) and are used to roll with the rolling part (14) and buffer the rolling part (14).

2. The cable pay-off device according to claim 1, characterized in that: The buffer assembly comprises: A first arc plate (9), wherein the first arc plate (9) is arranged on the top of the support assembly (4); A second circular arc plate (7), wherein the second circular arc plate (7) is arranged on the top of the first circular arc plate (9), and an arc-shaped groove (16) is formed on the top of the second circular arc plate (7); a third circular arc plate (8), the third circular arc plate (8) being arranged at the opening of the arc-shaped groove (16); and An elastic part, wherein the elastic part is arranged inside the arc-shaped groove (16) and is connected to the second circular arc plate (7) and the third circular arc plate (8).

3. The cable pay-off device according to claim 2, characterized in that: The elastic portion comprises: a column (18), one end of which is connected to the bottom of the third circular arc plate (8), and the other end of which movably passes through the second circular arc plate (7); and A first spring (17), wherein the first spring (17) is sleeved on the side wall of the column (18), one end of the first spring (17) is connected to the bottom of the third circular arc plate (8), and the other end of the first spring (17) is connected to the inner bottom of the arc groove (16).

4. The cable pay-off device according to claim 3, characterized in that: The elastic part also includes a snap ring (19), which is clamped on the side wall of the column (18) and is located below the second circular arc plate (7).

5. The cable pay-off device according to claim 2, characterized in that: The elastic parts are in a plurality of groups, and the plurality of groups of elastic parts are evenly distributed along the interior of the arc-shaped groove (16).

6. The cable pay-off device according to claim 1, characterized in that: The cable pay-off device also includes: A mounting plate (10), the mounting plate (10) being arranged on the top of the supporting assembly (4); A mounting seat (13), the mounting seat (13) being arranged on the top of the mounting plate (10), and the mounting seat (13) having two groups of bearing cavities (24) arranged in an upper and lower manner; and Two groups of rolling bearings (25), the two groups of rolling bearings (25) are respectively arranged inside the two groups of bearing cavities (24), and the bottom end of the rotating shaft (11) passes through the mounting seat (13) and the two groups of rolling bearings (25), and is connected to the two groups of rolling bearings (25).

7. The cable pay-off device according to claim 6, characterized in that: The cable pay-off device also includes: An adjustment seat (12), the adjustment seat (12) being arranged on the top of the mounting seat (13), a cavity (20) being provided inside the adjustment seat (12), and the rotating shaft (11) movably passing through the adjustment seat (12) and the cavity (20); A ratchet (21), the ratchet (21) being arranged inside the cavity (20) and fixedly sleeved on a side wall of the rotating shaft (11); and A locking portion, the locking portion being arranged inside the cavity (20), and the locking portion being used to cooperate with the ratchet (21) to perform one-way locking.

8. The cable pay-off device according to claim 7, characterized in that: The locking portion comprises: a ratchet pawl (22), the ratchet pawl (22) being rotatably disposed inside the cavity (20), the end of the ratchet pawl (22) being located between two adjacent ratchet teeth of the ratchet wheel (21); and A second spring (23), one end of the second spring (23) is connected to the pawl (22), and the other end of the second spring (23) is connected to the inner wall of the cavity (20).

9. The cable pay-off device according to claim 1, characterized in that: The rolling part (14) comprises a plurality of sets of universal ball joints, and the plurality of sets of universal ball joints are distributed along the circumference of the bottom edge of the rotating frame (6).

10. The cable pay-off device according to any one of claims 1 to 9, characterized in that: The support assembly (4) comprises: A support plate (2), wherein the two buffer components are arranged on top of the support plate (2); A plurality of sets of universal wheels (3), wherein the plurality of sets of universal wheels (3) are arranged at the bottom of the support plate (2); and An armrest (1), wherein the armrest (1) is arranged on the top edge of the support plate (2).

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