Tail rope limiting device of vertical shaft lifter

Abstract

The utility model provides a tail rope limiting device of a vertical shaft lifter, which comprises a base plate, a tail rope limiting device and a tail rope limiting device, the supporting part is arranged above the substrate and is provided with a through hole; the first limiting rod comprises a first main rod body and a first rotating cylinder, the first main rod body is arranged in the avoiding hole, and the first rotating cylinder is rotationally arranged on the first main rod body; the second limiting rod comprises a second main rod body and a second rotating cylinder, the second main rod body and the first main rod body are arranged in a spaced mode, the second rotating cylinder is rotationally arranged on the second main rod body, a first limiting space is formed between the second rotating cylinder and the first rotating cylinder, and the second main rod body is arranged in the receding hole in a floating mode in the preset direction so as to adjust the size of the first limiting space; one end of the tail rope penetrates through the through hole from bottom to top and then penetrates through the first limiting space from top to bottom; and the reset piece can apply force towards the first main rod body to the second main rod body. According to the technical scheme, the problem that the tail rope of the vertical shaft lifter in the prior art is prone to shaking can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine mining, and particularly relates to a tail rope limiting device for a vertical shaft hoist. Background Technique

[0002] In coal mine underground production, the coal mine vertical shaft hoist is one of the important production tools. The coal mine vertical shaft hoist is mostly used in vertical shafts and is mainly used for the vertical transportation of materials and personnel. The vertical shaft hoist can transport the mined coal or other minerals from underground to the ground. The vertical shaft hoist can also transport miners up and down the shaft to ensure the safety and convenience of personnel movement. The vertical shaft hoist can also transport mining equipment, tools and other materials. In case of an emergency, such as an accident in the mine, the vertical shaft hoist can quickly evacuate personnel.

[0003] However, in this field, with the operation of the vertical shaft hoist, the vertical shaft hoist itself will shake, and the shaking of the vertical shaft hoist will cause the tail rope on the vertical shaft hoist to swing. The swinging of the tail rope is likely to cause the tail rope to wind around other structures in the vertical shaft or the tail ropes to wind around each other. Once these situations occur, it will affect the operation of the vertical shaft hoist and may seriously damage the vertical shaft hoist. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a tail rope limiting device for a vertical shaft hoist to solve the problem that the tail rope of the vertical shaft hoist in the related technology is easy to shake.

[0005] To achieve the above purpose, the utility model provides a tail rope limiting device for a vertical shaft hoist, which is arranged above the vertical shaft opening. The tail rope limiting device includes: a base plate with an avoidance hole penetrating through; a support part arranged above the base plate, and a through hole is arranged on the support part; a first limiting rod including a first main rod body and a first rotating cylinder, the first main rod body is arranged in the avoidance hole and connected with the base plate, and the first rotating cylinder is rotatably arranged on the first main rod body; a second limiting rod including a second main rod body and a second rotating cylinder, the second main rod body is arranged at an interval from the first main rod body, the second rotating cylinder is rotatably arranged on the second main rod body, a first limiting space is formed between the second rotating cylinder and the first rotating cylinder, and the second main rod body is arranged in the avoidance hole in a floating manner along a preset direction to adjust the size of the first limiting space. One end of the tail rope passes through the through hole from bottom to top and then passes through the first limiting space from top to bottom; a resetting member capable of applying a force towards the first main rod body to the second main rod body so that the tail rope is clamped between the second rotating cylinder and the first rotating cylinder.

[0006] Further, the tail rope limiting device further includes a mounting rod, the mounting rod is arranged in the avoidance hole and connected to the substrate, a sliding groove is arranged on the mounting rod, the sliding groove extends along a preset direction, the second limiting rod further includes a first sliding rod and a first connecting rod, the first sliding rod is slidably arranged in the sliding groove, and the second main rod body is connected to the first sliding rod through the first connecting rod.

[0007] Further, the reset member includes an elastic member, the elastic member is arranged in the sliding groove and abuts against the first sliding rod to apply a force towards the first main rod body to the first sliding rod.

[0008] Further, the tail rope limiting device further includes a third limiting rod and a fourth limiting rod, the first limiting rod, the second limiting rod, the third limiting rod and the fourth limiting rod are all parallel and spaced apart, the second limiting rod and the third limiting rod are located between the first limiting rod and the fourth limiting rod, a second limiting space is formed between the third limiting rod and the fourth limiting rod, and the third limiting rod is arranged to be floatable along the preset direction to adjust the size of the second limiting space.

[0009] Further, the third limiting rod includes a third main rod body, a second connecting rod and a second sliding rod, a second limiting space is formed between the third main rod body and the fourth limiting rod, the third main rod body is connected to the second sliding rod through the second connecting rod, the second sliding rod is slidably arranged in the sliding groove, and two ends of the elastic member respectively abut against and cooperate with the first sliding rod and the second sliding rod.

[0010] Further, the first limiting rod further includes a first blocking member and a second blocking member, the first blocking member and the second blocking member are respectively arranged at two ends of the first rotating cylinder to limit the tail rope.

[0011] Further, the tail rope limiting device further includes a positioning member arranged below the substrate, and the positioning member is in positioning cooperation with the vertical wellhead.

[0012] Further, the substrate is of a rectangular structure, there are multiple positioning members, the multiple positioning members are arranged at the corners of the substrate, and in the direction away from the substrate, the cross-sectional area of the positioning member gradually decreases.

[0013] Further, the tail rope limiting device further includes a first vertical plate and a second vertical plate, the first vertical plate is connected between the substrate and the first end of the supporting part, the second vertical plate is connected between the substrate and the second end of the supporting part, and both the first vertical plate and the second vertical plate are detachably connected to the substrate.

[0014] Further, a first mounting cylinder is arranged on the substrate, the first vertical plate is inserted into the first mounting cylinder, and the first vertical plate is connected to the first mounting cylinder through a first fastening member; and / or, a second mounting cylinder is arranged on the substrate, the second vertical plate is inserted into the second mounting cylinder, and the second vertical plate is connected to the second mounting cylinder through a second fastening member.

[0015] Applying the technical solution of the present utility model, the tail rope limiting device is arranged above the vertical shaft opening. The base plate provides an installation foundation for each component, and the base plate is provided with an avoidance hole penetrating therethrough; the support part is arranged above the base plate, and the support part is provided with a through hole. Both the avoidance hole and the through hole can allow the tail rope to pass through. The first limiting rod includes a first main rod body and a first rotating cylinder. The first main rod body is arranged in the avoidance hole and connected to the base plate, and the first rotating cylinder is rotatably arranged on the first main rod body; the second limiting rod includes a second main rod body and a second rotating cylinder. The second main rod body is arranged at an interval from the first main rod body, and the second rotating cylinder is rotatably arranged on the second main rod body. A first limiting space is formed between the second rotating cylinder and the first rotating cylinder. One end of the tail rope first passes through the avoidance hole from bottom to top, then passes through the through hole, and then passes through the first limiting space from top to bottom, so that the tail rope is lapped on the support part and the tail rope is located between the second rotating cylinder and the first rotating cylinder (that is, located in the first limiting space). When the vertical shaft hoist works, the tail rope on the vertical shaft hoist will inevitably shake. Since the second main rod body is arranged in the avoidance hole so as to be floating along the preset direction a, the size of the first limiting space can be relatively adjusted, so that the second rotating cylinder can provide a buffering effect when the tail rope shakes, and the shaking degree of the tail rope can also be reduced; the resetting member can apply a force to the second main rod body towards the first main rod body, so that even if the second rotating cylinder moves in the direction away from the first rotating cylinder, the resetting member can still clamp the tail rope between the second rotating cylinder and the first rotating cylinder, thereby reducing the shaking degree of the tail rope. Therefore, the technical solution of the present application can effectively solve the problem that the tail rope of the vertical shaft hoist in the related art is prone to shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 The three-dimensional structural schematic diagram of the embodiment of the tail rope limiting device of the vertical shaft hoist according to the present utility model is shown;

[0018] Figure 2 Shown is Figure 1 The enlarged schematic diagram of part A of the tail rope limiting device;

[0019] Figure 3 Shown is Figure 1 The sectional schematic diagram of part of the structure of the tail rope limiting device;

[0020] Figure 4 Shown is Figure 1 The three-dimensional structural schematic diagram of part of the structure of the tail rope limiting device.

[0021] Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0022] a. Predetermined direction;

[0023] 10. Substrate; 11. Avoidance hole;

[0024] 20. Support portion; 21. Through hole;

[0025] 30. First limiting rod; 31. First main rod body; 32. First rotating cylinder; 33. First stop member; 34. Second stop member;

[0026] 40. Second limiting rod; 41. Second main rod body; 42. Second rotating cylinder; 43. First limiting space; 44. First sliding rod; 45. First connecting rod;

[0027] 50. Reset member; 51. Elastic member;

[0028] 60. Mounting rod; 61. Sliding groove;

[0029] 71. Third limiting rod; 711. Third main body rod; 712. Second connecting rod; 713. Second sliding rod; 72. Fourth limiting rod; 73. Second limiting space; 74. Positioning member; 75. First vertical plate; 76. Second vertical plate;

[0030] 81. First mounting cylinder; 82. Second mounting cylinder; 83. First fastener; 84. Second fastener. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] It should be noted that the terms used here are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] As Figures 1 to 3 shown, the present application provides a tail rope limiting device for a shaft hoist, which is arranged above the shaft opening. The embodiment of the tail rope limiting device for the shaft hoist of the present application includes: a base plate 10, a support portion 20, a first limiting rod 30, a second limiting rod 40, and a reset member 50; the base plate 10 has an avoidance hole 11 penetrating therethrough; the support portion 20 is arranged above the base plate 10, and a through hole 21 is arranged on the support portion 20; the first limiting rod 30 includes a first main rod body 31 and a first rotating cylinder 32, the first main rod body 31 is arranged in the avoidance hole 11 and connected to the base plate 10, and the first rotating cylinder 32 is rotatably arranged on the first main rod body 31; the second limiting rod 40 includes a second main rod body 41 and a second rotating cylinder 42, the second main rod body 41 is arranged at an interval from the first main rod body 31, the second rotating cylinder 42 is rotatably arranged on the second main rod body 41, a first limiting space 43 is formed between the second rotating cylinder 42 and the first rotating cylinder 32, and the second main rod body 41 is arranged in the avoidance hole 11 so as to be floating along a preset direction a to adjust the size of the first limiting space 43, and one end of the tail rope passes through the through hole 21 from bottom to top and then passes through the first limiting space 43 from top to bottom; the reset member 50 can apply a force to the second main rod body 41 towards the first main rod body 31 so that the tail rope is clamped between the second rotating cylinder 42 and the first rotating cylinder 32.

[0035] Applying the technical solution of this embodiment, the tail rope limiting device is arranged above the vertical shaft opening. The substrate 10 provides an installation foundation for each component. The substrate 10 has an avoidance hole 11 penetrating therethrough. The support portion 20 is arranged above the substrate 10. A through hole 21 is arranged on the support portion 20. Both the avoidance hole 11 and the through hole 21 can allow the tail rope to pass through. The first limiting rod 30 includes a first main rod body 31 and a first rotating cylinder 32. The first main rod body 31 is arranged in the avoidance hole 11 and connected to the substrate 10. The first rotating cylinder 32 is rotatably arranged on the first main rod body 31. The second limiting rod 40 includes a second main rod body 41 and a second rotating cylinder 42. The second main rod body 41 is arranged at an interval from the first main rod body 31. The second rotating cylinder 42 is rotatably arranged on the second main rod body 41. A first limiting space 43 is formed between the second rotating cylinder 42 and the first rotating cylinder 32. One end of the tail rope first passes through the avoidance hole 11 from bottom to top, then passes through the through hole 21, and then passes through the first limiting space 43 from top to bottom, so that the tail rope is lapped on the support portion 20 and the tail rope is located between the second rotating cylinder 42 and the first rotating cylinder 32 (that is, located in the first limiting space 43). When the vertical shaft hoist works, the tail rope on the vertical shaft hoist will inevitably shake. Since the second main rod body 41 is arranged in the avoidance hole 11 so as to be floating along the preset direction a, the size of the first limiting space 43 can be relatively adjusted, so that the second rotating cylinder 42 can provide a buffering effect when the tail rope shakes, and the shaking degree of the tail rope can also be reduced. The reset member 50 can apply a force to the second main rod body 41 towards the first main rod body 31, so that even if the second rotating cylinder 42 moves in the direction away from the first rotating cylinder 32, the reset member 50 can still clamp the tail rope between the second rotating cylinder 42 and the first rotating cylinder 32, thereby reducing the shaking degree of the tail rope. Therefore, the technical solution of this embodiment can effectively solve the problem that the tail rope of the vertical shaft hoist in the related art is prone to shaking.

[0036] Such as Figures 1 to 3As shown, the tail rope limiting device further includes a mounting rod 60. The mounting rod 60 is disposed in the avoidance hole 11 and connected to the substrate 10. A sliding groove 61 is provided on the mounting rod 60. The sliding groove 61 extends along a preset direction a. The second limiting rod 40 further includes a first sliding rod 44 and a first connecting rod 45. The first sliding rod 44 is slidably disposed in the sliding groove 61. The second main rod body 41 is connected to the first sliding rod 44 through the first connecting rod 45. Specifically, there are two mounting rods 60. The two mounting rods 60 are parallel and spaced apart. The first limiting rod 30, the second limiting rod 40, the third limiting rod 71 (mentioned later) and the fourth limiting rod 72 (mentioned later) are all disposed between the two mounting rods 60. A sliding groove 61 is provided on the mounting rod 60. The first sliding rod 44 is slidably disposed in the sliding groove 61. The second main rod body 41 is connected to the first sliding rod 44 through the first connecting rod 45, so that the second main rod body 41 is floatingly disposed, and further the distance between the second rotating cylinder 42 and the first rotating cylinder 32 is adjusted, thereby realizing the adjustment of the size of the first limiting space 43.

[0037] As Figure 3 shown, the reset member 50 includes an elastic member 51. The elastic member 51 is disposed in the sliding groove 61 and abuts against the first sliding rod 44 to apply a force towards the first main rod body 31 to the first sliding rod 44. Specifically, in this embodiment, the elastic member 51 is a compression spring. One end of the compression spring abuts against the first sliding rod 44, so as to apply a force towards the first main rod body 31 to the first sliding rod 44. The other end of the compression spring abuts against the second sliding rod 713. In an embodiment not shown in other figures, the other end of the compression spring can also abut against the side wall of the sliding groove.

[0038] As Figure 1 shown, the tail rope limiting device further includes a third limiting rod 71 and a fourth limiting rod 72. The first limiting rod 30, the second limiting rod 40, the third limiting rod 71 and the fourth limiting rod 72 are all parallel and spaced apart. The second limiting rod 40 and the third limiting rod 71 are located between the first limiting rod 30 and the fourth limiting rod 72. A second limiting space 73 is formed between the third limiting rod 71 and the fourth limiting rod 72. The third limiting rod 71 is floatingly disposed along the preset direction a to adjust the size of the second limiting space 73. Specifically, with such a setting, the multiple tail ropes of the shaft hoist can be respectively limited, thereby avoiding the mutual entanglement of the multiple tail ropes during the operation of the shaft hoist and bringing potential safety hazards to the shaft hoist.

[0039] As Figure 3As shown, the third limiting rod 71 includes a third main rod 711, a second connecting rod 712, and a second sliding rod 713. A second limiting space 73 is formed between the third main rod 711 and the fourth limiting rod 72. The third main rod 711 is connected to the second sliding rod 713 through the second connecting rod 712. The second sliding rod 713 is slidably arranged in the sliding groove 61. Both ends of the elastic member 51 are in abutting cooperation with the first sliding rod 44 and the second sliding rod 713 respectively. Specifically, by providing an elastic member 51, a force is applied to the first sliding rod 44 in the direction towards the first limiting rod 30, and a force is also applied to the second sliding rod 713 in the direction towards the fourth limiting rod 72, which has the advantage of simple structure.

[0040] As Figures 1 to 3 shown, the first limiting rod 30 further includes a first stopper 33 and a second stopper 34. The first stopper 33 and the second stopper 34 are respectively arranged at both ends of the first rotating cylinder 32 to limit the tail rope. Specifically, the arrangement of the first stopper 33 and the second stopper 34 can limit the swaying of the tail rope in the extending direction of the first limiting rod 30, thereby further reducing the possibility of the tail rope winding around other structures.

[0041] As Figure 1 shown, the tail rope limiting device further includes a positioning member 74 arranged below the substrate 10. The positioning member 74 is in positioning cooperation with the vertical wellhead to prevent relative displacement between the tail rope limiting device and the vertical wellhead.

[0042] As Figure 1 shown, the substrate 10 is of a rectangular structure. There are multiple positioning members 74, and the multiple positioning members 74 are arranged at the corners of the substrate 10. In the direction away from the substrate 10, the cross-sectional area of the positioning member 74 gradually decreases. Specifically, in the direction away from the substrate 10, the cross-sectional area of the positioning member 74 gradually decreases, enabling the positioning member 74 to insert into the vertical wellhead with its sharp head, thereby achieving positioning cooperation with the vertical wellhead. The multiple positioning members 74 make the positioning cooperation between the substrate 10 and the vertical wellhead more stable.

[0043] As Figure 1 and Figure 4 shown, the tail rope limiting device further includes a first vertical plate 75 and a second vertical plate 76. The first vertical plate 75 is connected between the substrate 10 and the first end of the support portion 20, and the second vertical plate 76 is connected between the substrate 10 and the second end of the support portion 20. Both the first vertical plate 75 and the second vertical plate 76 are detachably connected to the substrate 10. Specifically, with such an arrangement, the first vertical plate 75, the second vertical plate 76, and the support portion 20 can be detached from the substrate 10, facilitating transportation by the staff.

[0044] As Figure 1 and Figure 4As shown, a first mounting cylinder 81 is provided on the substrate 10. The first vertical plate 75 is inserted into the first mounting cylinder 81, and the first vertical plate 75 is connected to the first mounting cylinder 81 through a first fastener 83. A second mounting cylinder 82 is provided on the substrate 10. The second vertical plate 76 is inserted into the second mounting cylinder 82, and the second vertical plate 76 is connected to the second mounting cylinder 82 through a second fastener 84. Specifically, both the first fastener 83 and the second fastener 84 are fastening bolts, which can stably connect the first vertical plate 75 and the first mounting cylinder 81 and stably connect the second vertical plate 76 and the second mounting cylinder 82.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually 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. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0046] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" and the like can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.

[0047] In addition, it should be noted that the use of words such as "first", "second" to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tail rope limiting device for a shaft hoist, arranged above the shaft opening, characterized in that: The tail rope limiting device comprises: A base plate (10) having an escape hole (11) extending therethrough; A support portion (20) is arranged above the substrate (10), and a through hole (21) is provided on the support portion (20); A first limiting rod (30) comprises a first main rod body (31) and a first rotating cylinder (32), wherein the first main rod body (31) is disposed in the avoidance hole (11) and connected to the base plate (10), and the first rotating cylinder (32) is rotatably disposed on the first main rod body (31); The second limiting rod (40) comprises a second main rod body (41) and a second rotating drum (42); the second main rod body (41) is spaced apart from the first main rod body (31); the second rotating drum (42) is rotatably arranged on the second main rod body (41); a first limiting space (43) is formed between the second rotating drum (42) and the first rotating drum (32); the second main rod body (41) is floatingly arranged in the avoidance hole (11) along a preset direction (a) to adjust the size of the first limiting space (43); one end of the tail rope passes through the through hole (21) from bottom to top and then passes through the first limiting space (43) from top to bottom; The reset member (50) is capable of applying a force to the second main rod body (41) toward the first main rod body (31) so that the tail rope is clamped between the second rotating drum (42) and the first rotating drum (32).

2. The tail rope limiting device according to claim 1, characterized in that: The tail rope limiting device also includes a mounting rod (60), wherein the mounting rod (60) is arranged in the avoidance hole (11) and connected to the base plate (10), and a sliding groove (61) is arranged on the mounting rod (60), and the sliding groove (61) extends along the preset direction (a). The second limiting rod (40) also includes a first sliding rod (44) and a first connecting rod (45), wherein the first sliding rod (44) is slidably arranged in the sliding groove (61), and the second main rod body (41) is connected to the first sliding rod (44) via the first connecting rod (45).

3. The tail rope limiting device according to claim 2, characterized in that: The reset member (50) comprises an elastic member (51), wherein the elastic member (51) is arranged in the sliding groove (61) and cooperates with the first sliding rod (44) to apply a force to the first sliding rod (44) toward the first main rod body (31).

4. The tail rope limiting device according to claim 3, characterized in that: The tail rope limiting device also includes a third limiting rod (71) and a fourth limiting rod (72); the first limiting rod (30), the second limiting rod (40), the third limiting rod (71) and the fourth limiting rod (72) are all arranged in parallel and at intervals; the second limiting rod (40) and the third limiting rod (71) are located between the first limiting rod (30) and the fourth limiting rod (72); a second limiting space (73) is formed between the third limiting rod (71) and the fourth limiting rod (72); the third limiting rod (71) can be arranged to float along a preset direction (a) to adjust the size of the second limiting space (73).

5. The tail rope limiting device according to claim 4, characterized in that: The third limiting rod (71) includes a third main rod (711), a second connecting rod (712) and a second sliding rod (713); the second limiting space (73) is formed between the third main rod (711) and the fourth limiting rod (72); the third main rod (711) is connected to the second sliding rod (713) through the second connecting rod (712); the second sliding rod (713) is slidably arranged in the sliding groove (61); and the two ends of the elastic member (51) are respectively abutted against the first sliding rod (44) and the second sliding rod (713).

6. The tail rope limiting device according to claim 1, characterized in that: The first limiting rod (30) further comprises a first stopper (33) and a second stopper (34), wherein the first stopper (33) and the second stopper (34) are respectively arranged at two ends of the first rotating drum (32) to limit the tail rope.

7. The tail rope limiting device according to claim 1, characterized in that: The tail rope limiting device also includes a positioning member (74) arranged below the base plate (10), and the positioning member (74) is positioned and matched with the shaft opening.

8. The tail rope limiting device according to claim 7, characterized in that: The substrate (10) is a rectangular structure, and there are a plurality of positioning members (74). The plurality of positioning members (74) are arranged at the corners of the substrate (10), and the cross-sectional area of ​​the positioning members (74) gradually decreases in a direction away from the substrate (10).

9. The tail rope limiting device according to any one of claims 1 to 8, characterized in that: The tail rope limiting device also includes a first vertical plate (75) and a second vertical plate (76), wherein the first vertical plate (75) is connected between the base plate (10) and the first end of the support portion (20), and the second vertical plate (76) is connected between the base plate (10) and the second end of the support portion (20), and the first vertical plate (75) and the second vertical plate (76) are both detachably connected to the base plate (10).

10. The tail rope limiting device according to claim 9, characterized in that: The base plate (10) is provided with a first mounting tube (81), the first vertical plate (75) is inserted into the first mounting tube (81), and the first vertical plate (75) is connected to the first mounting tube (81) via a first fastener (83); and / or, A second mounting tube (82) is provided on the base plate (10), the second vertical plate (76) is inserted into the second mounting tube (82), and the second vertical plate (76) is connected to the second mounting tube (82) via a second fastener (84).

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