Accurate positioning device for cable head installation

Abstract

The invention provides an accurate positioning device for cable head installation. The accurate positioning device comprises a magnetic attraction base, a horizontal adjusting assembly, a sliding bottom plate, a vertical adjusting assembly, a lever transmission assembly and a hoop. The magnetic base is adsorbed and fixed on the metal mounting surface; the horizontal adjusting assembly is arranged at the top end of the magnetic base and used for driving horizontal displacement. The sliding bottom plate is connected to the output end of the horizontal adjusting assembly. The vertical adjusting assembly is arranged on the sliding bottom plate and comprises a guide column and a lead screw transmission pair. The lever transmission assembly is hinged to the sliding bottom plate, and the input end makes contact with the output end of the vertical adjusting assembly. The hoop is connected to the output end of the lever transmission assembly through a connecting rod and used for clamping a cable. The magnetic suction chassis provided with the high-magnetic-force permanent magnets is arranged, and one-key adsorption disassembly is achieved; a traditional welding and drilling fixing mode is replaced, the installation time is shortened to 5 minutes from 60 minutes, meanwhile, the installation base plane is prevented from being damaged, and the construction efficiency and adaptability are greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cable installation auxiliary tools, and particularly relates to a cable head installation precise positioning device. BACKGROUND

[0002] In the field of power system distribution line construction, the cable T head is a key node for branch connection of the main cable, and bears the pivotal function of distributing electric current from the ring network cabinet to the terminal load; the outgoing sleeve as the only physical interface of the ring network cabinet and the external cable directly determines the reliability and safety of electric energy transmission in terms of connection quality.

[0003] In 10kV and above distribution lines, the connection between the T head and the sleeve needs to withstand a 28kV power frequency withstand voltage and long-term operating electric field stress. Therefore, the precision requirement for the connection between the cable T head and the outgoing sleeve of the ring network cabinet is extremely high, and the connection of the two is the core process affecting the installation progress and quality.

[0004] At present, the main cable of 3*300 and above models has the problems of large self-weight, hard texture, and the terminal extending from the underground to the narrow operation space of the ring network cabinet, which leads to significant challenges in the installation process.

[0005] The existing technology mainly relies on pure manual operation, and the construction personnel usually need to manually lift and move the cable through 4-5 people to adjust the spatial position of the cable head and realize precise docking with the sleeve. This method has the following key defects:

[0006] 1. The average time for single installation is as long as 60 minutes, and the position needs to be adjusted frequently;

[0007] 2. In the narrow space, multiple people may cause coordination errors, leading to misalignment of the cable head and the sleeve, affecting the sealing and long-term operation safety;

[0008] 3. Manually lifting heavy cables may cause muscle strains or falling risks; the cable surface may be mechanically damaged due to uneven manual clamping force, which may cause insulation hazards;

[0009] 4. The existing device cannot be quickly fixed on the metal base surface such as the ring network cabinet shell, and if temporary welding or drilling is used for fixation, it will damage the equipment structure and take more time. SUMMARY

[0010] The application aims to provide a cable head installation precise positioning device which can be quickly fixed, adjusted in multiple degrees of freedom, and operated with less effort.

[0011] The cable head installation precision positioning device comprises a magnetic base, a horizontal adjusting assembly, a sliding bottom plate, a vertical adjusting assembly, a lever transmission assembly and a clamp.

[0012] In an embodiment of the device, the bottom of the magnetic base is embedded with a high magnetic force permanent magnet.

[0013] In an embodiment of the device, the horizontal adjusting assembly comprises a fixed bottom plate, support plates symmetrically arranged on both sides of the bottom plate, a screw rod penetrating through the support plates, a handle for driving the screw rod to rotate, and a nut for engaging with the screw rod and fixedly connecting the sliding bottom plate.

[0014] In an embodiment of the device, the nut is a T-shaped nut, and the top plate of the T-shaped nut is connected to the sliding bottom plate through a bolt; and the screw rod is a trapezoidal thread screw rod.

[0015] In an embodiment of the device, the vertical adjusting assembly comprises guide columns, an upper support plate, an upright screw rod, a pressing plate and a guide plate; a plurality of guide columns are fixedly arranged on the sliding bottom plate; the upper support plate is connected to the top end of the guide columns, and a threaded hole is arranged at the center of the upper support plate; the upright screw rod is engaged with the threaded hole of the upper support plate, and a handle is arranged at the top end of the upright screw rod; the pressing plate is connected to the bottom end of the upright screw rod through a bearing; and the guide plate is fixedly arranged below the pressing plate and is sleeved on the guide columns at four corners.

[0016] In an embodiment of the device, the lever transmission assembly comprises a base, a connecting shaft sleeve, a pressing block and a connecting rod; the base is fixedly arranged on the sliding bottom plate; the connecting shaft sleeve is hingedly connected to the base, and two externally threaded rods are arranged on the surface of the connecting shaft sleeve; the pressing block has a spherical structure at one end, and contacts the guide plate of the vertical adjusting assembly; the other end of the pressing block is connected to the first threaded rod of the connecting shaft sleeve; one end of the connecting rod is connected to the second threaded rod of the connecting shaft sleeve, and the other end of the connecting rod is connected to the clamp.

[0017] In an embodiment of the device, the clamp comprises a fixed seat, a movable seat and a protective pad; the fixed seat and the movable seat are semi-annular, and the fixed seat is provided with a threaded connecting hole; the movable seat is connected to the fixed seat through a bolt; and the inner sides of the fixed seat and the movable seat are provided with the protective pad of anti-skid rubber.

[0018] In an embodiment of the device, the connecting rod is a detachable Z-shaped rod.

[0019] The beneficial effects of the present application are as follows:

[0020] 1. The magnetic base with high-magnetic permanent magnets enables one-click adsorption and disassembly; replacing the traditional welding and drilling fixing methods, the installation time is reduced from 60 minutes to 5 minutes, while avoiding damage to the installation base surface, greatly improving construction efficiency and adaptability;

[0021] 2. Through the coordinated setup of horizontal screw nut transmission, vertical screw guide column and lever hinge, precise three-dimensional positioning is achieved; covering the angle requirements of all cable installation scenarios, reducing the installation manpower from 5 people to 1 person, and solving the problem of maneuvering heavy cables in narrow spaces;

[0022] 3. The handwheel-driven trapezoidal threaded screw has an accuracy of up to 0.1mm and is easy and labor-saving to operate; combined with the lever clamp with anti-slip rubber protective pad, it provides adjustable clamping force to avoid damage to the cable due to overvoltage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention.

[0024] Figure 2 for Figure 1 A side view of the structure of the middle nut.

[0025] Figure 3 for Figure 1 Enlarged structural diagram of the central clamp.

[0026] Figure label:

[0027] 1. Adsorption base; 2. Horizontal adjustment assembly; 21. Base plate; 22. Support plate; 23. Lead screw; 24. Handle; 25. Nut; 3. Sliding base plate; 4. Vertical adjustment assembly; 41. Guide column; 42. Upper support plate; 43. Vertical lead screw; 44. Pressure plate; 45. Guide plate; 5. Lever transmission assembly; 51. Base; 52. Connecting bushing; 53. Pressure block; 54. Connecting rod; 6. Clamp; 61. Fixed seat; 62. Movable seat; 63. Protective pad. Detailed Implementation

[0028] The relevant technical solutions will now be clearly and completely described with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figure 1 As shown, the cable head installation precision positioning device disclosed in this embodiment includes an adsorption base 1, a horizontal adjustment component 2, a sliding base plate 3, a vertical adjustment component 4, a lever transmission component 5, and a clamp 6.

[0030] The adsorption base 1 has a magnetic chassis structure with a high-strength permanent magnet, such as a neodymium iron boron magnet, embedded in the bottom. It can be quickly fixed to the metal mounting surface by magnetic attraction and supports one-click disassembly.

[0031] The top of the adsorption base 1 is provided with a horizontal adjustment component 2, which includes a base plate 21, a support plate 22, a lead screw 23, a handle 24, and a nut 25.

[0032] The base plate 21 is flat and fixed to the top of the adsorption base 1, providing a horizontal installation reference for the device.

[0033] The support plate 22 consists of two vertical plates, symmetrically fixed on both sides of the base plate; it is connected to the lead screw 23 via bearings, supporting both ends of the lead screw.

[0034] One end of the lead screw 23 extends outward through the support plate 22, and a handle 24 is fixedly mounted on the extended end. The handle is a circular inner corrugated handwheel, which transmits rotational torque through corrugation to prevent slippage.

[0035] The lead screw 23 has a trapezoidal thread, and the nut 25 is an internally threaded sleeve, which meshes with the lead screw to form a lead screw transmission pair.

[0036] like Figure 2 As shown, nut 25 is a T-shaped nut, and its top plate is fixed to the sliding base plate 3 by bolts. The horizontal displacement of the sliding base is achieved through the screw nut drive of the horizontal adjustment assembly.

[0037] A vertical adjustment assembly 4 is provided on the sliding base plate 3 near the handle 24. The vertical adjustment assembly includes a guide post 41, an upper support plate 42, a vertical lead screw 43, a pressure plate 44, and a guide plate 45.

[0038] Four guide posts 41 are vertically fixed to the sliding base plate 3, and the upper support plate 42 is fixedly connected to the top of the guide posts. A threaded hole is opened in the center of the upper support plate, and a vertical lead screw 43 is engaged with the threaded hole of the upper support plate.

[0039] The top of the vertical lead screw 43 is fixed with an internal corrugated handwheel, which serves as a handle. The bottom of the vertical lead screw is connected to the pressure plate 44 via a bearing.

[0040] The four corners of the guide plate 45 are inserted into the guide post 41, and the upper end of the guide plate is fixedly connected to the pressure plate 44.

[0041] The lever transmission assembly 5 includes a base 51, a connecting bushing 52, a pressure block 53, and a connecting rod 54.

[0042] The base 51 is located on the side of the sliding base plate 3 away from the handle 24 and is a pair of clamping plates.

[0043] The connecting bushing 52 is a sleeve structure, hinged to the base. Two outwardly protruding threaded rods are respectively provided on the sleeve surface of the connecting bushing.

[0044] The pressing block 53 is a ball with a connecting rod, the ball end is pressed by the pressing plate 44 and the guide plate 45, and the connecting rod end is connected with the threaded rod on the connecting sleeve.

[0045] The connecting rod 54 is a special-shaped rod, and the two ends are threaded connection ends. One end of the connecting rod is connected with another threaded rod on the connecting sleeve, and the other end of the connecting rod is threaded connected with the clamp 6.

[0046] The connecting rod 54 of the embodiment is approximately Z-shaped, and the shape of the connecting rod can also be set to other shapes according to actual needs, so as to facilitate the clamp to hold the cable and improve the working efficiency. The detachable design of the connecting rod also facilitates replacement according to actual needs.

[0047] As shown in Figure 3 The clamp 6 includes a fixed seat 61, a movable seat 62 and a protective pad 63.

[0048] The fixed seat 61 and the movable seat 62 are both semi-annular, and the fixed seat has a threaded hole at the bottom end, which can be threaded connected with the connecting rod 54; the movable seat is detachably connected with the fixed seat through the bolts at the two ends.

[0049] The inner side of the fixed seat 61 and the movable seat 62 is attached with the protective pad 63, which is anti-skid rubber, avoiding damaging the cable surface.

[0050] The device adjusts the position of the pressing block through the vertical adjusting assembly, and the lever transmission assembly drives the displacement of the clamp, so as to realize the position adjustment of the cable head.

[0051] The use method of using the device to install the cable head is as follows:

[0052] 1. Align the permanent magnet at the bottom of the adsorption base with the metal mounting surface of the ring network cabinet, and complete the quick fixing by using the magnetic attraction force without drilling or welding.

[0053] 2. Open the movable seat of the clamp, place the cable on the protective pad on the inner side of the fixed seat, and tighten the bolts at the two ends of the movable seat. The cable surface is clamped through the rubber protective pad, avoiding damaging the cable.

[0054] 3. Rotate the handle of the horizontal adjusting assembly to drive the rotation of the lead screw. The lead screw drives the meshed nut to move horizontally, the nut pushes the sliding bottom plate to displace along the horizontal direction, and the horizontal position of the cable is accurately adjusted.

[0055] 4. Rotate the top handle of the vertical adjusting assembly, the vertical lead screw moves axially through the threaded hole of the upper support plate, pushes the pressing plate and the guide plate to vertically ascend and descend along the guide column. The pressing plate presses the pressing block of the lever transmission assembly, drives the rotation of the connecting sleeve, and finally controls the vertical displacement of the clamp through the connecting rod.

[0056] 5. Through the hinge structure of the pressing block of the lever transmission assembly and the connecting shaft sleeve, the pitch angle adjustment of the hoop is realized synchronously in the vertical adjustment process; taking the connecting shaft sleeve as the fulcrum, the extension direction of the hand-tightening connecting rod is manually fine-adjusted, the hoop is driven to rotate horizontally, and the full-scene installation requirement is covered.

[0057] 6. Through the cooperative operation of the hand wheel and the vertical lead screw, the accurate positioning of the cable is completed, the cable T head is aligned with the looped network cabinet outlet sleeve, after the installation is completed, the magnetic force of the adsorbing base is released, and the device is disassembled.

[0058] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although in the foregoing detailed description with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A precise positioning device for cable head installation, characterized in that: It includes a magnetic base, a horizontal adjustment assembly, a sliding base plate, a vertical adjustment assembly, a lever transmission assembly, and a clamp; The magnetic base is attached to the metal mounting surface; the horizontal adjustment component is located at the top of the magnetic base and is used to drive horizontal displacement; the sliding base plate is connected to the output end of the horizontal adjustment component; the vertical adjustment component is located on the sliding base plate and includes a guide post and a lead screw drive pair; the lever drive component is hinged to the sliding base plate, and its input end contacts the output end of the vertical adjustment component; the clamp is connected to the output end of the lever drive component via a connecting rod and is used to clamp the cable.

2. The cable head installation precision positioning device as described in claim 1, characterized in that: The magnetic base is fitted with a high-magnetic-force permanent magnet at its bottom.

3. The cable head installation precision positioning device as described in claim 1, characterized in that: The horizontal adjustment assembly includes a fixed base plate, support plates symmetrically arranged on both sides of the base plate, a lead screw passing through the support plates, a handle for driving the lead screw to rotate, and a nut that meshes with the lead screw and is fixedly connected to the sliding base plate.

4. The cable head installation precision positioning device as described in claim 3, characterized in that: The nut is a T-shaped nut, and its top plate is connected to the sliding bottom plate by bolts; the lead screw is a trapezoidal threaded lead screw.

5. The cable head installation precision positioning device as described in claim 1, characterized in that: The vertical adjustment assembly includes a guide column, an upper support plate, a vertical lead screw, a pressure plate, and a guide plate; Multiple guide posts are vertically fixed to the sliding base plate; the upper support plate is connected to the top of the guide posts and has a threaded hole in its center; the vertical lead screw is engaged in the threaded hole of the upper support plate and has a handle at the top; the pressure plate is connected to the bottom of the vertical lead screw through a bearing; the guide plate is fixed below the pressure plate and is sleeved on the guide posts at its four corners.

6. The cable head installation precision positioning device as described in claim 1, characterized in that: The lever transmission assembly includes a base, a connecting bushing, a pressure block, and a connecting rod. The base is fixed to the sliding base plate; the connecting bushing is hinged to the base, and its surface is provided with two protruding threaded rods; one end of the pressure block is a spherical structure that contacts the guide plate of the vertical adjustment component, and the other end is connected to the first threaded rod of the bushing; one end of the connecting rod is connected to the second threaded rod of the bushing, and the other end is connected to the clamp.

7. The cable head installation precision positioning device as described in claim 1, characterized in that: The clamp includes a fixed seat, a movable seat, and a protective pad; The fixed seat and the movable seat are semi-circular. The fixed seat has a threaded connection hole; the movable seat is connected to the fixed seat by bolts; the inner sides of the fixed seat and the movable seat are provided with anti-slip rubber protective pads.

8. The cable head installation precision positioning device as described in claim 6, characterized in that: The connecting rod is a detachable Z-shaped rod.

Images