Lifting device for erecting power cable

Abstract

The invention provides a lifting device for erecting a power cable, and belongs to the technical field of cable erecting, the lifting device comprises a lifting mechanism, a clamping mechanism and a connecting mechanism, the lifting mechanism comprises a mounting rack, a lifting groove is formed in the upper part of the mounting rack, and a servo motor is fixedly mounted in the center of the top end of the mounting rack; the output end of the servo motor is in transmission connection with a lead screw through a coupler, the bottom end of the lead screw penetrates through the lifting groove and is rotationally connected to the bottom of the mounting frame, the outer surface of the lead screw is in threaded connection with a lifting block, and the front end of the lifting block is fixedly connected with a lifting frame. The clamping mechanism comprises a fixed tray fixedly installed on the inner bottom wall of the lifting frame, and a movable disc is arranged over the fixed tray. The problems that in the power cable erecting process, height adjustment is slow, cable fixing and releasing operation is complex, labor intensity is large, and construction safety is insufficient are solved.

Description

Technical Field

[0001] The invention relates to the technical field of cable installation, in particular to a lifting device for installing a power cable. Background Art

[0002] In modern society, the power transmission system is an important infrastructure to ensure daily production and life. The installation of power cables is one of the key links in the construction of power transmission networks, especially in the installation of high-voltage or ultra-high-voltage power lines, which places very strict requirements on the installation and maintenance of cables. In the installation process of power cables, since the cables are often heavy and long, manual operation is inefficient and has a high risk factor. Therefore, the use of professional lifting devices to install and adjust cables has become a common solution.

[0003] For example, patent CN217522500U describes a new type of cable laying support device, including a base, a cross plate and a U-shaped frame, a lifting plate is arranged on the top of the base, a lifting mechanism is arranged inside the base, the lifting mechanism is composed of a lifting rod, a rack, a movable gear, a connecting shaft, a worm wheel and a worm, a rack is arranged on one side of the lifting rod, and a fixed rod is arranged on the other side of the lifting rod. The cable laying support device for electromechanical installation, by setting up a lifting mechanism, the construction personnel rotate the worm to quickly and flexibly adjust the lifting plate up and down, thereby controlling the height of the U-shaped frame at the upper end and changing the support height for the cable, and by controlling the rotating mechanism, the U-shaped frame can be quickly adjusted to rotate, thereby changing the installation orientation of the cable, making the installation of electromechanical equipment more convenient, and the locking mechanism can stably install multiple groups of cables passing through in the U-shaped frame, so that the device can install the cables more stably and its safety is higher.

[0004] In this patent, although the screw rod can be rotated to drive the lower pressure seat to move up and down, thereby clamping cables of different diameters, the process of fixing and releasing the cables is relatively cumbersome, requiring the staff to continuously rotate the screw rod to complete the adjustment, which increases the operation time and labor intensity. This traditional mechanical structure is difficult to meet the demand for improving construction efficiency under the requirements of rapid construction.

[0005] In order to improve the operational efficiency and reduce labor intensity during cable installation, the prior art urgently needs an improved lifting device for power cable installation, which can adjust the height more quickly and conveniently and simplify the cable fixing and releasing operations, thereby adapting to the growing efficiency and safety requirements in modern power engineering. Summary of the invention

[0006] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0007] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0008] Therefore, the technical problem to be solved by the present invention is to provide a lifting device for power cable installation that can quickly adjust the height and simplify the cable fixing and releasing operations, so as to improve construction efficiency and reduce labor intensity.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: a lifting device for installing a power cable, comprising:

[0010] The lifting mechanism comprises a mounting frame, a lifting slot is provided on the upper part of the mounting frame, a servo motor is fixedly installed at the center of the top end of the mounting frame, the output end of the servo motor is connected to a screw rod through a coupling transmission, the bottom end of the screw rod passes through the lifting slot and is rotatably connected to the bottom of the mounting frame, the outer surface of the screw rod is threadedly connected to a lifting block, and the front end of the lifting block is fixedly connected to a lifting frame;

[0011] The clamping mechanism comprises a fixed tray fixedly mounted on the inner bottom wall of the lifting frame, a movable tray is arranged just above the fixed tray, first telescopic springs are symmetrically mounted on the left and right sides of the top of the movable tray, and the tops of the two first telescopic springs are fixedly connected to the inner top wall of the lifting frame, a telescopic rod is fixedly mounted at the center of the top of the movable tray, the top of the telescopic rod penetrates the inner top wall of the lifting frame and extends to the top thereof where a handle is fixedly connected; and,

[0012] The connecting mechanism includes connecting blocks fixedly installed on the top of the movable disk and located on the left and right sides of the telescopic rod, positioning holes are opened inside the two connecting blocks, plug-in blocks are inserted into the two positioning holes, the opposite surfaces of the two plug-in blocks are fixedly connected with telescopic blocks, the tops of the two telescopic blocks are fixedly connected with connecting rods, the tops of the two connecting rods are transmission-connected with release components, and the opposite surfaces of the two telescopic blocks are fixedly connected with second telescopic springs.

[0013] As a preferred solution of the lifting device for power cable installation described in the present invention, wherein: through holes are symmetrically opened on the left and right sides of the inner top wall of the lifting frame, expansion grooves are opened on the inner sides of the two through holes, straight grooves are opened at the top ends of the two expansion grooves, rotating cavities are opened at the top ends of the two straight grooves, and a movable cavity is opened on the rear side of the rotating cavity.

[0014] As a preferred solution of the lifting device for power cable installation described in the present invention, the upper parts of the two connecting blocks are respectively inserted into the two through holes, the two telescopic blocks are respectively slidably connected in the two telescopic grooves, the other ends of the two second telescopic springs are respectively fixedly connected to the inner walls of the two telescopic grooves, one ends of the two insert blocks are also respectively slidably connected in the two telescopic grooves, and the other ends of the two insert blocks respectively penetrate the two telescopic grooves and extend into the through holes, and are respectively inserted in the two positioning holes.

[0015] As a preferred solution of the lifting device for power cable installation described in the present invention, the release assembly includes a disc rotatably connected to the center of the rotating cavity, and fan-shaped plates are symmetrically installed on the left and right ends of the disc, and curved through grooves are opened on the inner sides of the two fan-shaped plates, and the outermost endpoints of the curved through grooves are arranged directly above the straight grooves, and the top end of the connecting rod passes through the straight grooves and extends into the curved through grooves.

[0016] As a preferred solution of the lifting device for power cable installation described in the present invention, wherein: an annular tooth is fixedly installed on the right side of the rear end of the disc, the rear side of the annular tooth is meshingly connected with a tooth plate, and the tooth plate is slidably connected in the movable cavity, a toggle rod is fixedly installed on the top end of the tooth plate, and the top end of the toggle rod passes through the movable cavity and extends to the outside of the lifting frame.

[0017] As a preferred solution of the lifting device for power cable installation described in the present invention, there is a certain gap between the plug-in ends of the two plug-in blocks and the inner walls of the two through holes respectively, the top ends of the two connecting blocks are both set as pointed ends, and one side is set as an inclined surface.

[0018] As a preferred solution of the lifting device for installing power cables of the present invention, universal wheels are arranged at the four corners of the bottom of the mounting frame, and brake plates are hinged at the front and rear ends of the mounting frame.

[0019] As a preferred solution of the lifting device for power cable installation described in the present invention, limit rods are symmetrically installed inside the lifting groove and on the left and right sides of the screw rod, and the outer surfaces of the two limit rods are slidably connected to limit blocks, and the front ends of the two limit blocks are fixedly connected to the rear side wall of the lifting frame.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention can quickly realize the up and down movement of the lifting block and the lifting frame through the transmission connection between the servo motor and the screw rod, simplifying the operation of height adjustment during cable installation. Compared with the traditional method of manually rotating the screw rod for adjustment, it greatly improves the construction efficiency and reduces the operation time and labor intensity.

[0022] 2. The present invention designs a clamping mechanism with a telescopic block and an insert block, and through the transmission connection of the release component, the construction personnel only need to simply operate the toggle lever to quickly complete the cable fixing and releasing process, avoiding the complicated process of continuously rotating the screw for adjustment in the traditional device, and further improving the construction efficiency.

[0023] 3. The clamping mechanism of the present invention can adapt to cables of different diameters through the design of the telescopic rod and the telescopic block, meet various cable installation requirements, and improve the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0025] Figure 1 is a first stereogram of the present invention;

[0026] Figure 2 is a second stereogram of the present invention;

[0027] Figure 3 It is a front cross-sectional view of the present invention;

[0028] Figure 4 It is a three-dimensional partial cross-sectional view of the connection between the lifting frame and the connecting mechanism of the present invention;

[0029] Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement at the center A;

[0030] Figure 6 It is a side sectional view of the lifting frame of the present invention;

[0031] Figure 7 It is a partial cross-sectional view of the top end of the lifting frame of the present invention;

[0032] Figure 8 It is a top sectional view of the lifting frame of the present invention;

[0033] Fig. 9 is a three-dimensional diagram of the connection mechanism of the present invention;

[0034] Fig.10 It is a partial cross-sectional view of the lifting frame of the present invention;

[0035] Fig.11 It is a three-dimensional diagram of the movable disk of the present invention. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Example 1

[0040] Reference Figure 1 to Figure 6 , which is the first embodiment of the present invention, provides a lifting device for installing power cables, including a lifting mechanism 100 and a clamping mechanism 200, wherein the lifting mechanism 100 is movable as a whole, and can drive the clamping mechanism 200 to move up and down together, so as to realize rapid adjustment and installation of cables, and the clamping mechanism 200 can quickly stabilize cables of different specifications, and realize simple fixing and releasing operations, thereby improving installation efficiency and safety.

[0041] Specifically, the lifting mechanism 100 includes a mounting frame 101 , which is used to support and fix other components. A lifting slot 101 a is provided on the upper portion of the mounting frame 101 , and the lifting slot 101 a provides space for the installation and rotation of the screw rod 103 . A servo motor 102 is fixedly installed at the center of the top of the mounting frame 101. The servo motor 102 provides power for the entire lifting mechanism and can accurately control the lifting height. It is connected to the lead screw 103 through a coupling transmission. The coupling ensures that the power of the servo motor 102 is smoothly transmitted to the lead screw 103. The bottom end of the lead screw 103 passes through the lifting slot 101a and is rotatably connected to the bottom of the mounting frame 101. A lifting block 104 is threadedly connected to its outer surface. The lifting block 104 realizes lifting movement through the rotation of the lead screw 103, which is convenient for height adjustment. A lifting frame 105 is fixedly connected to the front end of the lifting block 104. The lifting frame 105 is used to install and support the clamping mechanism 200, thereby realizing synchronous lifting of the cable. Through the above design, the lifting mechanism can efficiently and smoothly realize lifting operations under the drive of the servo motor, provide stable support for the installation and adjustment of the cable, and significantly improve construction efficiency and safety.

[0042] Furthermore, the clamping mechanism 200 includes a fixed tray 201 fixedly mounted on the inner bottom wall of the lifting frame 105. The function of the fixed tray 201 is to stably support the cable, and its surface is in an arc shape to better adapt to the shape of the cable and ensure that the cable is not damaged during the clamping process. A movable tray 202 is arranged directly above the fixed tray 201, and the opposite surface of the movable tray 202 is also in an arc shape. Through this design, a close fit with the fixed tray 201 is achieved, so that the cable is clamped and fixed uniformly. The movable tray 202 is fixed to the upper part of the fixed tray 201 by the connection mechanism 300. After the connection mechanism 300 releases the limit fixation of the movable tray 202, the movable tray 202 moves vertically downward under the elastic force of the first telescopic spring 203, and the cable is firmly clamped between the fixed tray 201 and the movable tray 202.

[0043] The first telescopic springs 203 are symmetrically installed on the left and right sides of the top of the movable plate 202. The first telescopic springs 203 provide downward elastic force to push the movable plate 202 downward after the limit fixation is released, thereby ensuring the rapid responsiveness and stability of the clamping process. The tops of the two first telescopic springs 203 are respectively fixedly connected to the inner top wall of the lifting frame 105, so that they provide reliable supporting force in the vertical direction.

[0044] In addition, a telescopic rod 204 is fixedly installed at the center of the top of the movable disk 202. The function of the telescopic rod 204 is, on the one hand, to limit the movement of the movable disk 202 to ensure that it can only move in the vertical direction to prevent shaking or deviation; on the other hand, the top of the telescopic rod 204 passes through the inner top wall of the lifting frame 105 and extends to the top of it where a handle 205 is fixedly connected. The design of the handle 205 enables the staff to easily pull the movable disk 202 upward to release the clamping of the cable after the operation is completed.

[0045] Through the above design, the clamping mechanism 200 can clamp and release the cable quickly and stably, realize efficient and safe cable installation operation, and ensure the convenience of operation. The arc-shaped design of the fixed tray 201 and the movable tray 202 ensures the adaptability to the cable, and the cooperation of the first telescopic spring 203 and the telescopic rod 204 ensures the stability and accuracy of the clamping process, thereby improving the performance of the overall device.

[0046] Preferably, limit rods 108 are symmetrically installed inside the lifting groove 101a and on the left and right sides of the screw rod 103. The outer surface of the limit rod 108 is slidably connected to the limit block 109. The front ends of the two limit blocks 109 are fixedly connected to the rear side wall of the lifting frame 105. The limit blocks 109 can slide up and down along the limit rods 108. Their function is to ensure that the lifting frame 105 always moves along a predetermined path during the lifting process through a fixed connection with the lifting frame 105 to avoid any lateral deviation or shaking. This connection method enables the lifting frame 105 to obtain additional support and stability when moving up and down, thereby improving the safety and reliability of the entire lifting mechanism.

[0047] Preferably, universal wheels 106 are provided at the four corners of the bottom of the mounting frame 101. The function of the universal wheels 106 is to make the mounting frame 101 have good mobility, facilitate the flexible movement and position adjustment of the entire lifting device in the construction site, and significantly improve the convenience and maneuverability of the construction. At the same time, brake plates 107 are hinged at the front and rear ends of the mounting frame 101. The function of the brake plates 107 is to fix the mounting frame 101. Through the contact between the brake plates 107 and the ground, the mounting frame 101 can be effectively locked after the device is moved into place, preventing it from accidentally moving during the work process, and ensuring stability and safety during operation.

[0048] The working principle of this device is:

[0049] First, the staff moves the entire lifting device to the position where the cable needs to be installed through the universal wheels 106 set at the bottom of the mounting frame 101. After adjusting to the appropriate installation point using the flexibility of the universal wheels, the mounting frame 101 is fixed by the brake plates 107 at the front and rear ends, so that the device will not move accidentally during the construction process, ensuring safety and stability. Next, the cable part to be installed is laid on the top of the fixed tray 201. The arc-shaped design of the fixed tray 201 can well adapt to the shape of the cable, ensuring the stability of the cable in the subsequent clamping process. Subsequently, the staff operates the connecting mechanism 300 to release the limit fixation of the movable disk 202. At this time, under the action of the rebound force of the first telescopic spring 203, the movable disk 202 is pushed downward. When the lower surface of the movable disk 202 contacts the upper surface of the cable, the movable disk 202 cooperates with the fixed tray 201 to clamp the cable to achieve a firm fixation of the cable. Then, the start The servo motor 102 drives the screw rod 103 to rotate through the coupling. The rotation of the screw rod 103 drives the lifting block 104 to move up and down along the lifting slot 101a, thereby realizing the overall up and down lifting of the lifting frame 105 and the clamping mechanism 200. This process can accurately adjust the cable to a suitable installation height. The design of the limit rod 108 and the limit block 109 ensures that the lifting frame 105 is stable and without shaking during the lifting process, thereby effectively preventing the cable from being offset and improving the installation accuracy. After the cable is installed, the staff pulls up the handle 205, and the handle 205 drives the movable disk 202 to move upward through the connected telescopic rod 204, so that the movable disk 202 is away from the fixed tray 201, thereby releasing the clamping of the cable. Finally, the brake plate 107 is unlocked, and the staff can move the entire device backward through the universal wheel 106, which is convenient for subsequent work or moving to the next construction point.

[0050] Through the above-mentioned operation process, the device realizes the full process automation of fast and stable cable clamping, precise height adjustment, convenient fixing and release, which greatly improves the efficiency of cable laying process, reduces the labor intensity of operation, and ensures the safety and stability of construction.

[0051] Example 2

[0052] Reference Figures 4 to 11 , which is the second embodiment of the present invention. The difference between this embodiment and the previous embodiment is that a connecting mechanism 300 is added, and the connecting mechanism 300 is used to control the limiting and releasing of the movable disk 202, so as to realize the rapid clamping and releasing operation of the cable.

[0053] Specifically, the connecting mechanism 300 includes a connecting block 301 fixedly installed on the top of the movable disk 202 and located on the left and right sides of the telescopic rod 204. The function of the connecting block 301 is to cooperate with the plug block 302 to achieve the limit fixation of the movable disk 202. Positioning holes 301a are provided inside the two connecting blocks 301. The positioning holes 301a are used to plug the plug blocks 302 to achieve stable connection and limit control. The opposite surfaces of the two plug blocks 302 are fixedly connected with telescopic blocks 303. The telescopic blocks 303 can move inward under the action of the release component 305, thereby realizing the limit release operation. The tops of the two telescopic blocks 303 are fixedly connected with connecting rods 304. The function of the connecting rods 304 is to cooperate with the release component 305 through transmission so that the telescopic blocks 303 can move synchronously. The opposite surfaces of the two telescopic blocks 303 are fixedly connected with second telescopic springs 306. The second telescopic springs 306 provide a reset force to enable the telescopic blocks 303 to return to the initial position after the release component operation is completed.

[0054] The inner top wall of the lifting frame 105 is symmetrically provided with through holes 105a on the left and right sides, and the inner sides of the two through holes 105a are provided with telescopic grooves 105b, which provide movement space for the telescopic block 303 and the plug block 302. The tops of the two telescopic grooves 105b are provided with linear grooves 105c, which are used to guide the movement of the connecting rod 304 so that it can accurately transmit and connect the telescopic block 303. The tops of the two linear grooves 105c are also provided with rotating chambers 105d, which are used to install the release component 305 and control the connecting mechanism through the rotation of the release component 305. The rear side of the rotating chamber 105d is also provided with a moving chamber 105e, which provides movement space for the sliding parts of the release component 305 to ensure smooth operation of the components.

[0055] In this embodiment, the upper parts of the two connecting blocks 301 are respectively inserted into the two through holes 105a, so that the connecting block 301 is fixedly connected to the lifting frame 105, ensuring that the movable disk 202 can remain stable during the clamping process, and the two telescopic blocks 303 are respectively slidably connected in the two telescopic grooves 105b. This sliding connection can ensure that the movement direction of the telescopic block 303 is limited, so that it can only move in the direction of the telescopic groove 105b to avoid deviation, and the other ends of the two second telescopic springs 306 are respectively fixedly connected to the inner walls of the two telescopic grooves 105b. Such a design makes it possible to reset the telescopic block 303 by relying on the rebound force of the spring after the limit is released. One end of the two insert blocks 302 is respectively slidably connected in the two telescopic grooves 105b, and the other end passes through the telescopic groove 105b and extends to the through hole 105a, and is inserted in the two positioning holes 301a, thereby achieving a stable limit on the connecting block 301.

[0056] In the above structure, the two plug blocks 302 are slidably connected in the two through holes 105a and the telescopic slot 105b respectively. This sliding connection mode enables the plug blocks 302 to flexibly move between the through holes 105a and the telescopic slot 105b to adapt to different working conditions of limitation and release. The clamping parts of the two plug blocks 302 are inserted into the positioning holes 301a of the connecting block 301, and after the clamping ends of the two plug blocks 302 are respectively inserted into the two positioning holes 301a, the upper and lower ends of the plug blocks 302 can abut against the inner top wall and the inner bottom wall of the positioning holes 301a, thereby achieving stable limitation. The advantage of this design is that under the action of the rebound force of the first telescopic spring 203, the movable disk 202 will not move downward, because the connecting block 301 is limited and fixed in the through hole 105a, and the bottom end of the connecting block 301 is fixedly connected to the upper surface of the movable disk 202, so the entire movable disk 202 is limited and fixed.

[0057] At the same time, the telescopic slot 105b is designed to provide space for the plug block 302 and the telescopic block 303 to move inward, so as to ensure that when the release component 305 is in operation, it can drive the telescopic block 303 and the plug block 302 to move into the telescopic slot 105b through the connecting rod 304, thereby realizing the function of releasing the limiting fixation of the connecting block 301. When the release component 305 is operated, the connecting rod 304 drives the telescopic block 303 to move inward through the transmission action, thereby making the plug block 302 disengage from the positioning hole 301a, thereby unlocking the connecting block 301, so that under the elastic force of the first telescopic spring 203, the movable disk 202 can move vertically downward, clamping the cable between the fixed tray 201 and the movable disk 202, and completing the cable fixing operation.

[0058] Furthermore, the release assembly 305 includes a disc 305a rotatably connected to the center of the rotating chamber 105d, and sector plates 305b are symmetrically mounted on the left and right ends of the disc 305a, and the inner sides of the two sector plates 305b are both provided with curved through grooves 305c. The outermost end of the curved through groove 305c is arranged directly above the linear groove 105c, and the top end of the connecting rod 304 passes through the linear groove 105c and extends into the curved through groove 305c.

[0059] Such a design enables, when the disc 305a drives the two sector plates 305b to rotate counterclockwise by a certain angle, and the end of the curved through slot 305c (the side close to the disc) moves to directly above the straight slot 105c, with this movement, the connecting rod 304 is driven to move from the initial position of the straight slot 105c to the end. This process drives the connecting rod 304 to drive the telescopic block 303 and the plug block 302 below to move into the telescopic slot 105b, and finally releases the limit fixation of the plug block 302 on the connecting block 301. The purpose of such a design is to achieve precise control of the plug block by simply rotating the disc during operation, so that the movable disc 202 can move downward to clamp the cable under the action of the first telescopic spring 203, thereby ensuring the efficiency and accuracy of the clamping operation.

[0060] Furthermore, a ring gear 305d is fixedly installed on the right side of the rear end of the disc 305a, and the ring gear 305d is meshed with the tooth plate 305e at the rear side. The tooth plate 305e is slidably connected in the moving cavity 105e, and a toggle rod 305f is fixedly installed on the top thereof. The top of the toggle rod 305f passes through the moving cavity 105e and extends to the outside of the lifting frame 105, which is convenient for the staff to operate.

[0061] The design of this structure enables the staff to slide the toggle rod 305f to the left, and the toggle rod 305f can drive the bottom tooth plate 305e to move to the left, and the tooth plate 305e engages with the annular tooth 305d, so that the annular tooth 305d drives the disc 305a to rotate counterclockwise. Through this transmission, the counterclockwise rotation of the disc 305a drives the connecting rod 304 to move, and then drives the telescopic block 303 and the insert block 302 to move inward, thereby releasing the limit fixation of the connecting block 301 and releasing the movable disc 202.

[0062] It should also be noted that there is a certain gap between the plug-in ends of the two plug-in blocks 302 and the inner walls of the two through holes 105a respectively. The tops of the two connecting blocks 301 are both set as pointed ends, and one side is set as an inclined surface. The design of this structure makes it very convenient for the staff to move the movable disk 202 to release the clamping and fixation of the cable. Specifically, the staff only needs to hold the handle 205 and pull it upward. When the two connecting blocks 301 enter the through hole 105a, the tips of the two connecting blocks 301 can first pass through the gap between the plug-in blocks 302 and the inner walls of the through hole 105a. Subsequently, as the connecting block 301 continues to move upward, its top is in a three-dimensional shape. The plug block 302 is angular, and its cross-section at the plug block 302 will gradually expand, thereby squeezing the plug block 302 into the telescopic slot 105b, and the second telescopic spring 306 in the telescopic slot 105b will also be squeezed, and when the positioning hole 301a of the connecting block 301 is in the same horizontal plane with the plug block 302, without the obstruction of the side wall of the connecting block 301, the plug block 302 will be rebounded to its initial position under the action of the rebound force of the second telescopic spring 306, and the clamping end of the plug block 302 will be inserted into the positioning hole 301a, thereby limiting and fixing the connecting block 301, and then releasing the limiting fixation of the cable, and the staff can smoothly move the device as a whole.

[0063] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0064] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0065] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A lifting device for installing power cables, Features: include, The lifting mechanism (100) comprises a mounting frame (101), a lifting slot (101a) is provided on the upper part of the mounting frame (101), a servo motor (102) is fixedly mounted at the center of the top of the mounting frame (101), the output end of the servo motor (102) is connected to a screw rod (103) through a coupling transmission, the bottom end of the screw rod (103) passes through the lifting slot (101a) and is rotatably connected to the bottom of the mounting frame (101), the outer surface of the screw rod (103) is threadedly connected to a lifting block (104), and the front end of the lifting block (104) is fixedly connected to a lifting frame (105); The clamping mechanism (200) comprises a fixed tray (201) fixedly mounted on the inner bottom wall of the lifting frame (105); a movable tray (202) is arranged directly above the fixed tray (201); first telescopic springs (203) are symmetrically mounted on the left and right sides of the top of the movable tray (202); the tops of the two first telescopic springs (203) are fixedly connected to the inner top wall of the lifting frame (105); a telescopic rod (204) is fixedly mounted at the center of the top of the movable tray (202); the top of the telescopic rod (204) passes through the inner top wall of the lifting frame (105) and extends to the top of the movable tray to be fixedly connected to a handle (205); and, The connecting mechanism (300) comprises a connecting block (301) fixedly mounted on the top of the movable disk (202) and located on the left and right sides of the telescopic rod (204); a positioning hole (301a) is provided inside the two connecting blocks (301); an inserting block (302) is inserted inside the two positioning holes (301a); the opposite surfaces of the two inserting blocks (302) are fixedly connected with a telescopic block (303); the tops of the two telescopic blocks (303) are fixedly connected with a connecting rod (304); the tops of the two connecting rods (304) are transmission-connected with a release assembly (305); and the opposite surfaces of the two telescopic blocks (303) are fixedly connected with a second telescopic spring (306).

2. The lifting device for installing a power cable according to claim 1, Features: Through holes (105a) are symmetrically provided on the left and right sides of the inner top wall of the lifting frame (105), telescopic grooves (105b) are provided on the inner sides of the two through holes (105a), straight grooves (105c) are provided at the top ends of the two telescopic grooves (105b), rotating cavities (105d) are provided at the top ends of the two straight grooves (105c), and a movable cavity (105e) is provided on the rear side of the rotating cavity (105d).

3. The lifting device for installing a power cable according to claim 2, Features: The upper parts of the two connecting blocks (301) are respectively inserted into the two through holes (105a), the two telescopic blocks (303) are respectively slidably connected in the two telescopic grooves (105b), the other ends of the two second telescopic springs (306) are respectively fixedly connected to the inner walls of the two telescopic grooves (105b), one ends of the two insert blocks (302) are also respectively slidably connected in the two telescopic grooves (105b), and the other ends of the two insert blocks (302) respectively penetrate the two telescopic grooves (105b) and extend into the through hole (105a), and are respectively inserted in the two positioning holes (301a).

4. The lifting device for installing a power cable according to claim 3, Features: The release assembly (305) comprises a disc (305a) rotatably connected to the center of the rotating chamber (105d), and sector plates (305b) are obliquely symmetrically installed at the left and right ends of the disc (305a), and the inner sides of the two sector plates (305b) are provided with curved through grooves (305c), and the outermost end points of the curved through grooves (305c) are arranged directly above the straight grooves (105c), and the top end of the connecting rod (304) passes through the straight grooves (105c) and extends into the curved through grooves (305c).

5. The lifting device for installing a power cable according to claim 4, Features: An annular tooth (305d) is fixedly installed on the right side of the rear end of the disc (305a), and a tooth plate (305e) is meshedly connected to the rear side of the annular tooth (305d), and the tooth plate (305e) is slidably connected in the movable cavity (105e), and a toggle rod (305f) is fixedly installed on the top end of the tooth plate (305e), and the top end of the toggle rod (305f) passes through the movable cavity (105e) and extends to the outside of the lifting frame (105).

6. The lifting device for installing a power cable according to claim 5, Features: There is a certain gap between the plug-in ends of the two plug-in blocks (302) and the inner walls of the two through holes (105a), respectively; the top ends of the two connection blocks (301) are both configured as pointed tips, and one side is configured as an inclined surface.

7. The lifting device for installing a power cable according to claim 6, Features: Universal wheels (106) are arranged at the four corners of the bottom of the mounting frame (101), and brake plates (107) are hinged at the front and rear ends of the mounting frame (101).

8. The lifting device for installing a power cable according to claim 7, Features: Limit rods (108) are symmetrically installed inside the lifting groove (101a) and on the left and right sides of the screw rod (103), and the outer surfaces of the two limit rods (108) are slidably connected to limit blocks (109), and the front ends of the two limit blocks (109) are fixedly connected to the rear side wall of the lifting frame (105).

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