Cable lifting device and cable well

Abstract

The utility model relates to a cable lifting device and a cable well, the cable lifting device comprises a mounting structure, a cable connecting structure and a lifting mechanism, the mounting structure is used for being mounted on the well wall of the cable well, the cable connecting structure is used for being connected with a cable, and the lifting mechanism comprises a first screw, a second screw and an adjusting sleeve; a first internal thread is formed at one end of the adjusting sleeve, a second internal thread opposite to the first internal thread in rotating direction is formed at the other end of the adjusting sleeve, the first end of the first screw is in threaded connection with the first internal thread, the second end of the first screw is hinged to the mounting structure, and the first end of the second screw is in threaded connection with the second internal thread. And the second end of the second screw rod is hinged with the cable connecting structure. By using the cable lifting device, the cable in the cable well can be lifted and kept at the lifted position, so that a worker can conveniently connect a connector of the cable to the switch cabinet, and the downward dragging force of the cable to an electric connection structure of the switch cabinet due to the gravity of the cable is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cable lifting equipment, and in particular, to a cable lifting device and a cable well. Background Art

[0002] In the prior art, for the sake of safety isolation and protection of cables, cables are usually laid in underground cable trenches and led to the ground through cable wells to connect to switch cabinets. When inspecting or testing the switch cabinet, it is usually necessary to remove the cable connector from the switch cabinet. The removed cable will sink due to gravity, and the weight of the cable (especially the high-voltage cable) is usually large. When it is necessary to reconnect the cable connector to the switch cabinet, the staff needs to lift the cable upward with great effort before connecting the cable connector to the switch cabinet. In addition, when the switch cabinet is connected to the cable, the cable will pull the electrical connection structure (such as the busbar) of the switch cabinet downward due to the gravity it is subjected to, which can easily cause damage to the electrical connection structure of the switch cabinet. Utility Model Content

[0003] The purpose of the present disclosure is to provide a cable lifting device and a cable well, by which the cable in the cable well can be lifted and the cable can be kept in the lifted position, so as to facilitate the staff to connect the cable connector to the switch cabinet when inspecting or testing the switch cabinet, and, when the switch cabinet is connected to the cable, reduce the force of the cable pulling downward on the electrical connection structure of the switch cabinet due to its own gravity.

[0004] In order to achieve the above object, according to one aspect of the present disclosure, a cable lifting device is provided, comprising:

[0005] An installation structure, used for installation on the wall of a cable well;

[0006] A cable connection structure, used for connecting with a cable;

[0007] The lifting mechanism includes a first screw, a second screw and an adjusting sleeve, wherein a first internal thread is formed at one end of the adjusting sleeve, and a second internal thread with a rotation direction opposite to that of the first internal thread is formed at the other end of the adjusting sleeve, the first end of the first screw is threadedly connected to the first internal thread, the second end of the first screw is hinged to the mounting structure, the first end of the second screw is threadedly connected to the second internal thread, and the second end of the second screw is hinged to the cable connection structure.

[0008] Optionally, the cable connection structure has a cable clamping hole extending in a vertical direction, the cable clamping hole can allow the cable to pass through the cable connection structure in a vertical direction, and there are multiple lifting mechanisms, which are arranged at intervals around the axis of the cable clamping hole.

[0009] Optionally, the mounting structure includes an annular member, a plurality of mounting portions arranged on the annular member, and a plurality of first hinge seats arranged on the annular member;

[0010] The through hole inside the annular member can allow the cable to pass through, and a plurality of mounting portions are arranged on the annular member at intervals along the circumference of the annular member, and the plurality of mounting portions are used to connect with the well wall;

[0011] The plurality of first hinged seats are spaced apart along the circumference of the annular member, the plurality of first hinged seats are arranged in one-to-one correspondence with the plurality of lifting mechanisms, and the first end of the first screw rod of each lifting mechanism is hinged to the corresponding first hinged seat.

[0012] Optionally, the cable connection structure comprises a clamping member, a clamping belt, a winding roller and a locking mechanism;

[0013] The clamping member has a wire-passing notch and a wire-accommodating groove connected to the wire-passing notch, the wire-passing notch is used for the cable to enter the wire-accommodating groove, the clamping member has a first end of the clamping belt connected to the winding roller, the second end of the clamping belt is detachably connected to the clamping member, and the clamping belt can be used together with the wire-accommodating groove to enclose a cable clamping hole for clamping the cable;

[0014] The winding roller is rotatably mounted on the clamping member, and the winding roller can rotate along a first rotation direction and wind the clamping belt on the winding roller, so that the clamping belt and the clamping member can clamp the cable together;

[0015] The locking mechanism is installed on the clamping member, and the locking mechanism is configured to limit the winding roller from rotating in a second rotation direction opposite to the first rotation direction.

[0016] Optionally, the wire-accommodating groove is formed as an arc-shaped groove.

[0017] Optionally, the cable connection structure further includes a lobster clasp and a connecting ring, one of the lobster clasp and the connecting ring is arranged at the second end of the clamping belt, and the other of the lobster clasp and the connecting ring is arranged on the clamping member and located in the wire accommodating groove.

[0018] Optionally, a plurality of second hinged seats arranged at intervals are provided on the clamping member, and the second end of the second screw rod of each lifting mechanism is hinged to the corresponding second hinged seat.

[0019] Optionally, there are three second hinged seats, and a line connecting the three second hinged seats forms an equilateral triangle.

[0020] Optionally, the locking mechanism is a ratchet mechanism, and the ratchet mechanism includes a ratchet, a pawl, a spring, a guide rod and a guide protrusion;

[0021] The guide protrusion is installed on the clamping member, a guide hole is formed on the guide protrusion, the guide rod is movably inserted into the guide hole along the extension direction of the guide hole, the pawl is connected to the guide rod and is used to cooperate with the ratchet, the ratchet is sleeved on the winding roller, and the spring is connected between the pawl and the guide protrusion.

[0022] According to another aspect of the present disclosure, a cable well is provided, comprising a well wall and the above-mentioned cable lifting device, wherein the mounting structure of the cable lifting device is connected to the well wall.

[0023] After the cable is laid, the cable can be lifted by rotating the adjusting sleeve, so that the portion of the cable between the cable connection structure and the switch cabinet can be in a relaxed state (i.e., non-tensioned state) after the cable is connected to the switch cabinet, thereby reducing the pulling force of the cable on the switch cabinet and avoiding damage to the electrical connection structure (such as busbar) between the switch cabinet and the cable. In addition, since the first screw can be self-locking with the first internal thread, and the second screw can be self-locking with the second internal thread, the cable can be kept at this height after rotating the adjusting sleeve. Therefore, when testing or repairing the switch cabinet, the cable lifting device can maintain the height of the cable removed from the switch cabinet, avoiding the cable from sinking away from the switch cabinet due to gravity, so that the staff can easily connect the cable connector to the switch cabinet.

[0024] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0026] Figure 1 is a schematic diagram of the three-dimensional structure of a cable lifting device provided in one embodiment of the present disclosure;

[0027] Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0028] Figure 3 yes Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0029] Figure 4 is a front view of a cable lifting device provided in one embodiment of the present disclosure;

[0030] Figure 5 is a top view of a cable lifting device provided in one embodiment of the present disclosure.

[0031] Description of Reference Numerals

[0032] 1-cable lifting device; 2-well wall; 10-installation structure; 11-annular member; 111-through hole; 12-installation part; 13-first hinge seat; 20-cable connection structure; 21-cable clamping hole; 22-clamping member; 221-wire notch; 222-wire trough; 223-second hinge seat; 23-clamping belt; 24-winding roller; 25-twisting part; 30-lifting mechanism; 31-first screw rod; 32-second screw rod; 33-adjusting sleeve; 40-locking mechanism; 41-ratchet; 42-pawl; 43-spring; 44-guide rod; 45-guide protrusion; 451-guide hole; 46-operating part; 50-lobster buckle; 60-connecting ring. DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] In the present disclosure, unless otherwise stated, directional words such as "upper, lower, top, bottom, vertical" are generally defined as "upper, lower, top, bottom, vertical" in the normal use state of the cable lifting device. Figure 4 As shown, the above-mentioned directional words are only for the convenience of describing the present disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, and a specific orientation structure and operation, and therefore cannot be understood as a limitation of the present disclosure. In addition, "inside and outside" refer to the inside and outside of the corresponding component outline. The terms "first", "second", etc. used are to distinguish one element from another element and do not have order and importance.

[0035] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" 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 ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0036] like Figures 1 to 5As shown, according to one aspect of the present disclosure, a cable lifting device 1 is provided, including a mounting structure 10, a cable connecting structure 20 and a lifting mechanism 30, the mounting structure 10 is used to be installed on the well wall 2 of the cable well, the cable connecting structure 20 is used to be connected to the cable, the lifting mechanism 30 includes a first screw 31, a second screw 32 and an adjusting sleeve 33, one end of the adjusting sleeve 33 is formed with a first internal thread, the other end of the adjusting sleeve 33 is formed with a second internal thread having a rotation direction opposite to that of the first internal thread, the first end of the first screw 31 is threadedly connected to the first internal thread, the second end of the first screw 31 is hinged to the mounting structure 10, the first end of the second screw 32 is threadedly connected to the second internal thread, and the second end of the second screw 32 is hinged to the cable connecting structure 20.

[0037] Through the above technical solution, after digging the cable well, the staff can first install the cable lifting device 1 on the well wall 2 of the cable well through its installation structure 10, and then lay the cable (that is, lay the cable in the cable trench, and lead the cable to the ground through the cable well), and then connect the cable connection structure 20 of the cable lifting device 1 to the cable in the cable well, thereby realizing the installation of the cable lifting device 1 in the cable well and the connection with the cable. Since the first internal thread at one end of the adjusting sleeve 33 is threadedly connected to the first end of the first screw rod 31, and the second internal thread at the other end of the adjusting sleeve 33 is threadedly connected to the first end of the second screw rod 32, and the rotation direction of the first internal thread and the second internal thread is opposite, rotating the adjusting sleeve 33 can make the first screw rod 31 and the second screw rod 32 approach each other or move away from each other. Since the second end of the first screw rod 31 is hinged to the mounting structure 10, and the second end of the second screw rod 32 is hinged to the cable connecting structure 20, the staff can rotate the adjusting sleeve 33 to move the cable connecting structure 20 toward the mounting structure 10, thereby lifting the cable connected to the cable connecting structure 20 upward.

[0038] After the cable is laid, the cable can be lifted by rotating the adjusting sleeve 33, so that the portion of the cable between the cable connection structure 20 and the switch cabinet can be in a relaxed state (i.e., non-tensioned state) after the cable is connected to the switch cabinet, thereby reducing the pulling force of the cable on the switch cabinet and avoiding damage to the electrical connection structure (such as busbar) between the switch cabinet and the cable. In addition, since the first screw 31 can be self-locking with the first internal thread, and the second screw 32 can be self-locking with the second internal thread, the cable can be kept at this height after rotating the adjusting sleeve 33. Therefore, when testing or repairing the switch cabinet, the cable lifting device can maintain the height of the cable removed from the switch cabinet to avoid the cable sinking away from the switch cabinet due to gravity, so that the staff can easily connect the cable connector to the switch cabinet.

[0039] In addition, since the cable lifting device 1 provided by the present invention can be arranged in a cable well, the encroachment on the ground space can be reduced, thereby facilitating the arrangement of equipment on the ground (such as switch cabinets, switch cabinets, etc.) and enabling workers to have more space to work on the ground.

[0040] Here, the lifting mechanism 30 can be set to any appropriate length according to actual needs, so that the installation structure 10 and the cable connection structure 20 can be spaced apart in the vertical direction.

[0041] In order to adjust the cable to a position more suitable for connection with the switch cabinet, as an implementation method, Figure 1 and Figure 5 As shown, the cable connection structure 20 has a cable clamping hole 21 extending in the vertical direction, and the cable clamping hole 21 can allow the cable to pass through the cable connection structure 20 in the vertical direction. There are multiple lifting mechanisms 30, and the multiple lifting mechanisms 30 are arranged at intervals around the axis of the cable clamping hole 21. When laying the cable in the cable well, the cable can be passed through the cable connection structure 20 from the cable clamping hole 21, so that the cable connection structure 20 is connected to the cable.

[0042] Since the plurality of lifting mechanisms 30 are arranged at intervals around the axis of the cable clamping hole 21, the plurality of lifting mechanisms 30 can be adjusted to appropriate lengths respectively to achieve adjustment of the horizontal position of the cable connection structure 20, thereby achieving adjustment of the horizontal position of the cable passing through the cable clamping hole 21, so that the cable can be adjusted to a position more suitable for connection with the switch cabinet, so as to facilitate the connection of the cable connector to the switch cabinet.

[0043] The present disclosure does not limit the number of cables that can pass through the cable clamping hole 21. In an embodiment where multiple cables pass through the cable clamping hole 21 (i.e., the cable connecting structure 20 connects multiple cables at the same time and lifts multiple cables at the same time), optionally, the multiple cables can be bundled into a strand with a cable tie and then passed through the cable clamping hole 21.

[0044] In order to improve the reliability of the connection between the mounting structure 10 and the well wall 2, as an implementation method, Figure 4 As shown, the mounting structure 10 includes an annular member 11, a plurality of mounting portions 12 arranged on the annular member 11, and a plurality of first articulated seats 13 arranged on the annular member 11. The through hole 111 on the inner side of the annular member 11 can allow the cable to pass through. The plurality of mounting portions 12 are arranged on the annular member 11 at intervals along the circumference of the annular member 11, and the plurality of mounting portions 12 are all used to connect with the well wall 2. The plurality of first articulated seats 13 are arranged at intervals along the circumference of the annular member 11. The plurality of first articulated seats 13 are arranged one-to-one with the plurality of lifting mechanisms 30, and the first end of the first screw 31 of each lifting mechanism 30 is hinged to the corresponding first articulated seat 13.

[0045] When laying cables in the cable well, the cables can pass through the mounting structure 10 through the through hole 111 on the inner side of the ring 11 and extend to the ground. Since the ring 11 is provided with a plurality of mounting portions 12 spaced apart along the circumference of the ring 11, the ring 11 can be connected to the well wall 2 through the plurality of mounting portions 12, thereby making the connection between the mounting structure 10 and the well wall 2 more reliable.

[0046] In addition, since the multiple first articulated seats 13 are arranged at circumferential intervals along the ring member 11, the multiple first articulated seats 13 are arranged one-to-one with the multiple lifting mechanisms 30, and the first end of the first screw 31 of each lifting mechanism 30 is hinged to the corresponding first articulated seat 13, the tension of the cable connection structure 20 can be evenly transmitted to various locations of the ring member 11, which is beneficial to improving the structural strength of the cable lifting device 1, so that the cable lifting device 1 provided in the present application can lift a larger weight and a larger number of cables.

[0047] Here, optionally, the mounting portion 12 may include a mounting hole and an expansion bolt formed on the annular member 11 , and the expansion bolt may pass through the mounting hole and connect to the well wall 2 , so that the mounting structure 10 is mounted on the well wall 2 .

[0048] In order to achieve the connection between the cable connection structure 20 and the cable, as an implementation method, as Figure 2 and Figure 3 As shown, the cable connection structure 20 includes a clamping member 22, a clamping belt 23, a winding roller 24 and a locking mechanism 40. The clamping member 22 has a wire-passing notch 221 and a wire-containing groove 222 connected to the wire-passing notch 221. The wire-passing notch 221 is used for allowing the cable to enter the wire-containing groove 222. The clamping member 22 has a first end of a clamping belt 23 connected to the winding roller 24, and a second end of the clamping belt 23 is detachably connected to the clamping member 22. The clamping belt 23 can be used together with the wire-containing groove 222 to form a cable clamping hole 21 for clamping the cable. The winding roller 24 is rotatably installed on the clamping member 22. The winding roller 24 can rotate along a first rotation direction and rewind the clamping belt 23 on the winding roller 24, so that the clamping belt 23 and the clamping member 22 can clamp the cable together. The locking mechanism 40 is installed on the clamping member 22, and the locking mechanism 40 is configured to limit the winding roller 24 from rotating along a second rotation direction opposite to the first rotation direction.

[0049] When connecting the cable, the cable can be first placed into the cable accommodating groove 222 through the wire notch 221, and then the second end of the clamping belt 23 can be connected to the clamping member 22, so that the clamping belt 23 and the cable accommodating groove 222 together form a cable clamping hole 21, and then the winding roller 24 can be rotated along the first rotation direction to make the size of the cable clamping hole 21 continue to shrink as the clamping belt 23 is wound on the winding roller 24, so that the clamping belt 23 and the groove wall of the cable accommodating groove 222 can clamp the cable together. In this way, the cable connection structure 20 can clamp cables of different diameters and different quantities.

[0050] Furthermore, since the clamping force of the clamping belt 23 and the groove wall of the cable accommodating groove 222 on the cable can increase as the winding roller 24 rotates along the first rotation direction, and the locking mechanism 40 can limit the rotation of the winding roller 24 along the second rotation direction opposite to the first rotation direction, the staff can adjust the clamping force to an appropriate value according to actual needs, and ensure that the clamping force of the clamping belt 23 and the groove wall of the cable accommodating groove 222 on the cable can be maintained for a long time.

[0051] It can be understood that the clamping of the cable by the clamping band 23 and the groove wall of the wire accommodating groove 222 can cause the cable to be subjected to friction from the clamping band 23 and the groove wall of the wire accommodating groove 222, and can also cause the insulating film of the cable to be slightly deformed, so that the cable connection structure 20 can fix the cable.

[0052] Here, in order to facilitate the staff to rotate the winding roller 24, optionally, a screwing portion 25 (such as a nut) can be provided at one end of the winding roller 24, so that the staff can screw the screwing portion 25 through a tool (such as a wrench), thereby making it easier to rotate the winding roller 24 along the first rotation direction.

[0053] The wire groove 222 can be configured in any suitable shape, which is not limited in the present disclosure. As an implementation example, Figure 2 , Figure 3 as well as Figure 5 As shown, the wire accommodating groove 222 can be formed as an arc-shaped groove, which is beneficial to increase the contact area between the groove wall of the wire accommodating groove 222 and the cable, thereby facilitating ensuring good friction between the wire accommodating groove 222 and the cable.

[0054] The second end of the clamping belt 23 and the clamping member 22 may be detachably connected in any suitable manner, which is not limited in the present disclosure. As an embodiment, Figure 3As shown, the cable connection structure 20 further includes a lobster clasp 50 and a connecting ring 60, one of which is disposed at the second end of the clamping belt 23, and the other of which is disposed on the clamping member 22 and located in the cable groove 222. The staff can realize the connection between the second end of the clamping belt 23 and the clamping member 22 by fastening the lobster clasp 50 on the connecting ring 60, or realize the separation of the second end of the clamping belt 23 and the clamping member 22 by removing the lobster clasp 50 from the connecting ring 60.

[0055] As other embodiments of the present disclosure, a threaded hole penetrating the wire groove 222 may be formed on the clamping member 22, and a round hole may be formed on the second end of the clamping band 23. The staff can pass the threaded fastener through the round hole and threadably connect it to the threaded hole to achieve a detachable connection between the second end of the clamping band 23 and the clamping member 22.

[0056] In addition, optionally, Figure 4 As shown, the clamping member 22 is provided with a plurality of second hinge seats 223 arranged at intervals, and the second end of the second screw rod 32 of each lifting mechanism 30 is hinged to the corresponding second hinge seat 223. In this way, the traction force of the lifting mechanism 30 can be uniformly applied to each part of the clamping member 22, which is beneficial to improving the structural strength of the cable lifting device 1.

[0057] The present disclosure does not limit the number of the second hinged seats 223. As an implementation method, Figure 1 and Figure 5 As shown, there may be three second hinged seats 223 , and the connecting line of the three second hinged seats 223 forms an equilateral triangle, so that the clamping member 22 can receive good and uniform traction from the multiple lifting mechanisms 30 .

[0058] In addition, in an embodiment in which multiple lifting mechanisms 30 are arranged at intervals around the axis of the cable clamping hole 21, the staff can adjust the horizontal position of the cable clamped by the cable clamping hole 21 through fewer operations (i.e., rotating the three lifting mechanisms 30 separately).

[0059] In the present disclosure, the locking mechanism 40 may be any suitable structure. As an implementation example, Figure 3 As shown, the locking mechanism 40 is a ratchet mechanism, which includes a ratchet 41, a pawl 42, a spring 43, a guide rod 44 and a guide protrusion 45. The guide protrusion 45 is installed on the clamping member 22. A guide hole 451 is formed on the guide protrusion 45. The guide rod 44 is movably inserted into the guide hole 451 along the extension direction of the guide hole 451. The pawl 42 is connected to the guide rod 44 and is used to cooperate with the ratchet 41. The ratchet 41 is sleeved on the winding roller 24. The spring 43 is connected between the pawl 42 and the guide protrusion 45.

[0060] Since the guide rod 44 is movably inserted into the guide hole 451 along the extension direction of the guide hole 451, the pawl 42 is connected to the guide rod 44, and the spring 43 is connected between the pawl 42 and the guide protrusion 45. Therefore, when the ratchet 41 rotates along the first rotation direction, the pawl 42 will be automatically pushed by the spring 43 to cooperate with the ratchet 41, thereby limiting the winding roller 24 connected to the ratchet 41 from rotating in the second direction.

[0061] Here, optionally, Figure 3 As shown, an operating portion 46 may be provided at one end of the guide rod 44 away from the pawl 42, such as a rod-shaped member extending in a direction perpendicular to the guide rod 44. The staff may pull the rod-shaped member to separate the pawl 42 from the ratchet 41, so that the winding roller 24 can rotate in the second direction, making it convenient for the staff to readjust the size of the cable clamping hole 21.

[0062] As other embodiments of the present disclosure, a connection gap may be provided between the winding roller 24 and the clamping member 22, and the winding roller 24 and the clamping member 22 may be locked by inserting a gasket or filling the connection gap with quick-drying glue.

[0063] According to another aspect of the present disclosure, a cable well is provided. Figure 4 As shown, it includes a well wall 2 and the above-mentioned cable lifting device 1 , and the mounting structure 10 of the cable lifting device 1 is connected to the well wall 2 .

[0064] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0066] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A cable lifting device, characterized in that: include: An installation structure, used for installation on the wall of a cable well; A cable connection structure, used for connecting with a cable; The lifting mechanism includes a first screw, a second screw and an adjusting sleeve, wherein a first internal thread is formed at one end of the adjusting sleeve, and a second internal thread with a rotation direction opposite to that of the first internal thread is formed at the other end of the adjusting sleeve, the first end of the first screw is threadedly connected to the first internal thread, the second end of the first screw is hinged to the mounting structure, the first end of the second screw is threadedly connected to the second internal thread, and the second end of the second screw is hinged to the cable connection structure.

2. The cable lifting device according to claim 1, characterized in that: The cable connection structure has a cable clamping hole extending in a vertical direction, and the cable clamping hole can allow the cable to pass through the cable connection structure in a vertical direction. There are multiple lifting mechanisms, and the multiple lifting mechanisms are arranged at intervals around the axis of the cable clamping hole.

3. The cable lifting device according to claim 2, characterized in that: The mounting structure comprises an annular member, a plurality of mounting portions arranged on the annular member, and a plurality of first hinge seats arranged on the annular member; The through hole inside the annular member can allow the cable to pass through, and a plurality of mounting portions are arranged on the annular member at intervals along the circumference of the annular member, and the plurality of mounting portions are used to connect with the well wall; The plurality of first hinged seats are spaced apart along the circumference of the annular member, the plurality of first hinged seats are arranged in one-to-one correspondence with the plurality of lifting mechanisms, and the first end of the first screw rod of each lifting mechanism is hinged to the corresponding first hinged seat.

4. The cable lifting device according to any one of claims 1 to 3, characterized in that: The cable connection structure comprises a clamping member, a clamping belt, a winding roller and a locking mechanism; The clamping member has a wire-passing notch and a wire-accommodating groove connected to the wire-passing notch, the wire-passing notch is used for the cable to enter the wire-accommodating groove, the clamping member has a first end of the clamping belt connected to the winding roller, the second end of the clamping belt is detachably connected to the clamping member, and the clamping belt can be used together with the wire-accommodating groove to enclose a cable clamping hole for clamping the cable; The winding roller is rotatably mounted on the clamping member, and the winding roller can rotate along a first rotation direction and wind the clamping belt on the winding roller, so that the clamping belt and the clamping member can clamp the cable together; The locking mechanism is installed on the clamping member, and the locking mechanism is configured to limit the winding roller from rotating in a second rotation direction opposite to the first rotation direction.

5. The cable lifting device according to claim 4, characterized in that: The wire accommodating groove is formed as an arc-shaped groove.

6. The cable lifting device according to claim 4, characterized in that: The cable connection structure also includes a lobster clasp and a connecting ring, one of which is arranged at the second end of the clamping belt, and the other of which is arranged on the clamping member and located in the wire accommodating groove.

7. The cable lifting device according to claim 4, characterized in that: The clamping member is provided with a plurality of second hinged seats arranged at intervals, and the second end of the second screw rod of each lifting mechanism is hinged to the corresponding second hinged seat.

8. The cable lifting device according to claim 7, characterized in that: There are three second hinged seats, and the connecting line of the three second hinged seats forms an equilateral triangle.

9. The cable lifting device according to claim 4, characterized in that: The locking mechanism is a ratchet mechanism, which includes a ratchet, a pawl, a spring, a guide rod and a guide protrusion; The guide protrusion is installed on the clamping member, a guide hole is formed on the guide protrusion, the guide rod is movably inserted into the guide hole along the extension direction of the guide hole, the pawl is connected to the guide rod and is used to cooperate with the ratchet, the ratchet is sleeved on the winding roller, and the spring is connected between the pawl and the guide protrusion.

10. A cable well, characterized in that: It comprises a well wall and the cable lifting device according to any one of claims 1 to 9, wherein the mounting structure of the cable lifting device is connected to the well wall.

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