Cable lower supporting equipment for power grid engineering construction

Abstract

The invention discloses a cable lower support device for power grid engineering construction, and relates to the technical field of power grid engineering construction, the cable lower support device comprises a first lower support assembly and a second lower support assembly, and a shaft rod is assembled between the first lower support assembly and the second lower support assembly. According to the cable lower supporting equipment for power grid project construction, automatic lifting of a cable drum can be achieved according to specific use requirements, different working condition requirements are met, assembly and use can be completed only by one person, cable conveying operation can be conveniently implemented, the working intensity of operators is greatly reduced, the models and sizes of the cable drum can be ignored, and the operation efficiency is improved. When the cable drum deflects leftwards and rightwards in the axial direction of the shaft rod, a good springback supporting effect is provided, the risk that the cable drum topples when lifted on the non-completely-horizontal ground can be avoided, the good stabilizing and supporting effect is achieved, the anti-deflection and anti-toppling stability performance of the cable drum is improved, the safety and stability of lower supporting equipment during single-person operation are ensured, and the production efficiency is improved. And the structure is simple and easy to assemble.

Description

Technical Field

[0001] The invention relates to the technical field of power grid engineering construction, in particular to a cable lowering device for power grid engineering construction. Background Art

[0002] Power engineering is engineering related to the production, transmission and distribution of electric energy. In a broad sense, it also includes engineering that uses electricity as power and energy in multiple fields. At the same time, it can be understood as power transmission and transformation industry expansion engineering. In power engineering, cables are often used, and cables are generally wound on cable reels. In power construction, the cable reels often need to be rotated. When the cable reels are transporting cables, they do not have a structural design to lift and support the cable reels to rotate on the ground, which is not convenient for cable transportation. Therefore, in the existing use process, a lower supporting device is used to place the cable reel on the lower supporting device, and the reel placed on the lower supporting device can rotate. Although the existing lower supporting device can complete the lifting operation of the cable reel without the help of more manpower or machinery, it can reduce the work intensity of the operator and facilitate the transportation of the cable reel. However, this lower supporting device has a certain risk of the reel falling back during the joint lifting and lifting process for large cable reels and cables, and it is impossible to avoid the risk of the reel tilting and tipping to the left or right when the reel is lifted on a non-completely horizontal ground. Summary of the invention

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: A cable support device for power grid engineering construction, comprising a first support assembly and a second support assembly, wherein a shaft rod is assembled between the first support assembly and the second support assembly, and the first support assembly and the second support assembly have the same structure, and can jointly adjust the installation height of the shaft rod, and the first support assembly and the second support assembly are symmetrically installed about the middle part of the shaft rod;

[0004] The second lower support assembly includes two top four panels, two bottom angle panels are assembled at one end of the top four panels away from the shaft rod, and the top four panels and the bottom angle panels are symmetrically installed on both sides of the shaft rod, and the edges of the assembly surfaces of the top four panels and the bottom angle panels are fixedly installed with extended wall panels, and bolt and nut assemblies are installed on the extended wall panels at equal intervals. The top four panels are assembled and installed with the bottom angle panels through the bolt and nut assemblies and the extended wall panels, wherein a mounting sleeve is fixedly installed at the bottom of one end of the bottom angle panel close to the shaft rod, and is arranged on the central axis between the two bottom angle panels;

[0005] A lifting assembly, which is installed between two top four panels and is used to adjust the installation height of the shaft rod;

[0006] The positioning component is assembled on the top four panels and is used to assist in lifting and positioning the lifting component.

[0007] Preferably, built-in plates are fixedly installed at the inner corners of the top four panels, compression springs are installed between the top four panels and the bottom angle panels, and the limiters are installed between two extended wall panels and are integrally mounted on the bolts of the bolt and nut assembly. Two long screws are installed inside the bottom angle panels, and the two bottom angle panels can be threadedly installed with the cooperation of two nuts.

[0008] Preferably, the side shape of the structure assembled by the top four panels and the bottom angle panel is a right-angled trapezoid, a movable groove is opened in the middle of one end of the top four panels away from the installation sleeve, and a right-angled trapezoidal notch is opened through the middle of the bottom plate of the bottom angle panel.

[0009] Preferably, the lifting assembly includes a lifting rod whose bottom is inserted into a mounting sleeve, a top block is installed on the flange of the telescopic end of the top of the lifting rod, and the middle parts of the left and right sides of the top block are fixedly connected with locking teeth, and the middle part of the side of the locking tooth away from the lifting rod is fixedly installed with auxiliary teeth.

[0010] Preferably, a clamping ring is fixedly installed at the middle part of one end of the top block away from the lifting rod, and a ball joint is installed at the inner limit position of the clamping ring, which can be deflected and adjusted to any angle on the inner side of the clamping ring.

[0011] Preferably, a bearing sleeve is installed on the inner wall surface of the ball joint, the shaft rod is inserted in the middle of the bearing sleeve, and a pin is inserted in one end of the shaft rod close to the clamping ring, which is used to limit the two ends of the shaft rod in the bearing sleeve to prevent them from falling off. The shaft rod is movably installed with the clamping ring through the cooperation of the ball joint and the bearing sleeve, and can be twisted to any angle around the center of the ball where the ball joint is located.

[0012] Preferably, the positioning assembly includes a positioning plate mounted on the top four panels through a movable groove, and the bottom limit of the positioning plate is installed on the built-in plate, and can slide horizontally on the built-in plate under the retraction guidance of the hydraulic cylinder.

[0013] Preferably, positioning protrusions are installed at equal intervals on the side of the positioning plate close to the shaft rod, a connecting block is installed in the middle of the side away from the shaft rod, and a hydraulic cylinder is installed in the middle of the connecting block, and the end of the hydraulic cylinder away from the connecting block is assembled on the wall panel of the top four panels, and the positioning plate is slidably installed with the top four panels through the hydraulic cylinder.

[0014] Preferably, a slot is provided on the surface of the positioning plate corresponding to the position of the positioning convex tooth, which is used to limit and accommodate the positioning convex tooth, prevent the positioning convex tooth from escaping from the slot, and enable the positioning convex tooth to be squeezed into the slot. A guide groove is provided in the middle of a side of the positioning convex tooth away from the positioning plate, and corresponds to the auxiliary tooth, which can not only perform left and right limit blocking when the locking tooth and the positioning convex tooth are engaged, but also enable the positioning convex tooth to perform a straight lifting and lowering motion between the two positioning plates under the guidance of the auxiliary tooth by the guide groove, thereby playing a guiding and limiting role.

[0015] Preferably, a cavity is opened in the middle position of the inner part of the positioning convex tooth, and a folding strip is fixedly connected to the middle part of the inner wall of the cavity, and the tail end of the folding strip is fixedly connected to the middle part of the inner wall of the slot, and the edge of the positioning convex tooth away from the locking tooth is clamped in the slot, so that the positioning convex tooth as a whole can perform telescopic movement in the slot, and the top block is installed in engagement with the positioning plate through the cooperation of the locking tooth and the positioning convex tooth, and the auxiliary tooth guides the locking tooth upward through the guide groove.

[0016] The present invention provides a cable support device for power grid engineering construction, which has the following beneficial effects:

[0017] 1. The cable lowering device for the construction of the power grid project is characterized in that the first lower supporting assembly and the second lower supporting assembly which have been assembled are symmetrically placed on both sides of the cable drum, and then the positioning height of the center of the bearing sleeve is adjusted between the two positioning plates according to the perforation position of the cable drum, and under the action of the close meshing of the positioning teeth and the positioning convex teeth, and the limiting action of the guide groove of the auxiliary teeth, and with the help of the lifting rod providing stable support to the middle part of the bottom end of the top block, the shaft rod is successively passed through the bearing sleeve on the first lower supporting assembly, through the central perforation of the cable drum, and then through the bearing sleeve on the second lower supporting assembly, and then the two pins are inserted into the two ends of the shaft rod, and then according to the specific use requirements, the top block is automatically lifted upward by starting the lifting rod, and the auxiliary teeth are limited by the guide groove, so that the positioning teeth can stably mesh and fit with the positioning convex teeth every time they pass through a positioning convex tooth, and there will be no left and right shaking or tilting, thereby realizing the automatic lifting of the cable drum.

[0018] 2. The cable supporting equipment used in the construction of the power grid project can lift the cable reel together with the cable and lift it off the ground to meet the needs of different working conditions, realize the automatic lifting function of the cable by the supporting equipment, and has a simple structure. Only one person is required to assemble and use it. At the same time, it can realize the rotation of the cable reel around the shaft rod, which is convenient for the implementation of cable transportation operations, greatly reduces the work intensity of operators, and can ignore the size of the cable reel.

[0019] 3. When the cable support equipment for the power grid project construction encounters a situation where the cable reel on an uneven road surface needs to be lifted, the installation diagram shows that the compression spring is assembled between the top four panels and the bottom angle plate to utilize the inclined assembly slope of the two. The compression spring is used to decompose the load from the cable reel in both horizontal and vertical directions, thereby providing shock-absorbing support on the slope surface of the top four panels formed by the compression spring along the bolt and nut assembly, that is, on the extended wall panel at the bottom of the top four panels.

[0020] 4. The cable supporting equipment used in the construction of power grid projects can provide good rebound support effect for the cable reel when the axis of the shaft rod deflects left or right, and can also provide shock-absorbing and buffering protection for the cable in the direction vertical to the ground. Through the setting and operation of the above-mentioned structure, it can avoid the risk of the cable reel being deflected to the left or right or even tipping over when being lifted on a non-completely horizontal ground. In particular, it can play a good stabilizing and supporting effect in the process of jointly lifting and lifting large cable reels and cables.

[0021] 5. The cable support equipment for power grid project construction can make use of the large right-angled trapezoidal gap formed between the two bottom angle plates to leave the uneven parts of the ground in the gap when the road conditions are uneven, so as to avoid the protruding parts of the ground interfering with the fitting placement of the bottom angle plates and the ground, and assemble the two bottom angle plates together through long screws, which not only increases the contact area with the ground, but also provides stable support for the top four panels. In addition, the side of the structure assembled by the top four panels and the bottom angle plates is in a right-angled trapezoidal structure to improve the stability of the cable reel against deflection and tipping, and is not afraid of the cable reel tilting forward and backward, nor is it afraid of the cable reel tilting left and right, ensuring the safety and stability of the support equipment when operated by one person, and the structure is simple and easy to assemble.

[0022] 6. The cable supporting device for power grid project construction can not only perform left and right limit blocking when the positioning teeth are engaged with the positioning convex teeth through the corresponding cooperation between the guide grooves and the auxiliary teeth, but also enable the positioning convex teeth to perform straight lifting and lowering movements between the two positioning plates under the guidance of the auxiliary teeth guide grooves, thereby playing a guiding and limiting role.

[0023] 7. The cable supporting equipment for the construction of the power grid project can guide the auxiliary teeth in the vertical direction with the help of the guide groove during the process of the lifting rod driving the top block to rise, and automatically squeeze the positioning convex tooth above the positioning tooth into the groove; when the auxiliary teeth transition upward to the guide groove of another positioning convex tooth, the positioning tooth can be guided to automatically engage with the positioning convex tooth above it and be tightly interlocked under the rebound action of the folding strip and the lifting action of the lifting rod, thereby realizing the auxiliary lifting and positioning function of the positioning component on the lifting component, and effectively avoiding the risk of falling back, ensuring that the lifting component drives the shaft rod and the cable reel to rise smoothly.

[0024] 8. The cable supporting equipment for the construction of the power grid project can, when it is necessary to lower the cable reel, first lift up half of the height of the positioning convex tooth, and when the locking tooth and the positioning convex tooth are half-engaged, start the hydraulic cylinder to retract the positioning plate at the same time, so that the engagement depth of the locking tooth and the positioning convex tooth is also at half the position. At this time, the rounded curved surface design of the free end of the locking tooth is used to retract the lifting rod, and the semi-engaged locking tooth and the positioning convex tooth are used to squeeze and retract the positioning convex tooth into the slot. At this time, the positioning convex tooth cannot be completely hooked and locked with the locking tooth, so the lifting height of the cable reel can be automatically adjusted under the return action of the lifting rod.

[0025] 9. The cable supporting device used in the construction of the power grid project can be twisted arbitrarily around the center of the ball where the clamping ring is located through the shaft rod through the ball joint, so that when the supporting device is assembled on both ends of the cable drum, there is no need for precise alignment. The supporting device can be assembled on the cable drum, and there is no need to completely coincide the central axis of the bearing sleeve with the central axis of the shaft rod. The supporting device can also be used to quickly assemble and lift the cable drum, which can further speed up the assembly process of the supporting device at both ends of the cable drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the external structure of a cable support device for power grid engineering construction according to the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the second lower support assembly of the present invention;

[0028] Figure 3 It is a schematic diagram of the assembly structure of the lifting assembly and the positioning assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the partial assembly structure of the shaft rod and the lifting assembly of the present invention;

[0030] Figure 5 It is a schematic diagram of the assembly structure of the positioning plate and the lifting assembly of the present invention;

[0031] Figure 6 It is a schematic diagram of the partial assembly structure of the positioning plate and the top four panels of the present invention;

[0032] Figure 7 It is a schematic diagram of the partial assembly structure of the positioning protruding teeth and the positioning plate of the present invention;

[0033] Figure 8 It is a schematic diagram of the partial meshing structure of the positioning plate and the positioning convex teeth of the present invention;

[0034] Fig. 9 It is a schematic diagram of the elastic assembly structure between the top four panels and the bottom corner panels of the present invention.

[0035] In the figure: 1. first lower support assembly; 2. second lower support assembly; 21. top four panels; 22. bottom angle panel; 23. extended wall panel; 24. bolt and nut assembly; 25. mounting sleeve; 26. built-in plate; 27. compression spring; 28. long screw; 3. shaft rod; 4. lifting assembly; 41. lifting rod; 42. top block; 43. positioning tooth; 44. auxiliary tooth; 45. clamping ring; 46. ball joint; 47. bearing sleeve; 48. latch; 5. positioning assembly; 51. positioning plate; 52. positioning convex tooth; 53. hydraulic cylinder; 54. connecting block; 55. guide groove; 56. folding pressure strip. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0037] The first embodiment, as Figures 1 to 9 As shown, the present invention provides a technical solution: a cable lowering device for power grid engineering construction, comprising a first lowering assembly 1 and a second lowering assembly 2, a shaft rod 3 is assembled between the first lowering assembly 1 and the second lowering assembly 2, and the first lowering assembly 1 and the second lowering assembly 2 have the same structure, and can jointly adjust the installation height of the shaft rod 3, and the first lowering assembly 1 and the second lowering assembly 2 are symmetrically installed about the middle part of the shaft rod 3;

[0038] The second lower support assembly 2 includes two top four panels 21, and one end of the top four panels 21 away from the shaft rod 3 is assembled with two bottom angle panels 22, and the top four panels 21 and the bottom angle panels 22 are symmetrically installed on both sides of the shaft rod 3, and the edges of the assembly surfaces of the top four panels 21 and the bottom angle panels 22 are fixedly installed with extended wall panels 23, and bolt and nut assemblies 24 are installed on the extended wall panels 23 at equal intervals. The top four panels 21 are assembled and installed with the bottom angle panels 22 through the bolt and nut assemblies 24 and the extended wall panels 23, wherein a mounting sleeve 25 is fixedly installed at the bottom of one end of the bottom angle panel 22 close to the shaft rod 3, and is arranged on the central axis between the two bottom angle panels 22;

[0039] A lifting assembly 4, which is installed between two top four panels 21 and is used to lift and lower the installation height of the shaft rod 3;

[0040] The positioning assembly 5 is assembled on the top four panels 21 and is used for assisting the lifting and positioning of the lifting assembly 4 .

[0041] The lifting assembly 4 includes a lifting rod 41 whose bottom is inserted into the mounting sleeve 25, and a top block 42 is installed on the flange of the telescopic end of the top of the lifting rod 41. The middle parts of the left and right sides of the top block 42 are fixedly connected with a locking tooth 43, and the middle part of the side of the locking tooth 43 away from the lifting rod 41 is fixedly installed with an auxiliary tooth 44, wherein the free end of the locking tooth 43 adopts a chamfered curved surface design.

[0042] The positioning assembly 5 includes a positioning plate 51 mounted on the top four panels 21 through a movable groove, and the bottom limit of the positioning plate 51 is installed on the built-in plate 26, and can slide horizontally on the built-in plate 26 under the retraction guidance of the hydraulic cylinder 53.

[0043] When in use, the assembled first lower support assembly 1 and the second lower support assembly 2 are placed symmetrically on both sides of the cable reel, and then the positioning height of the center of the bearing sleeve 47 is adjusted between the two positioning plates 51 according to the perforation position of the cable reel. Under the action of the close engagement of the positioning teeth 43 and the positioning convex teeth 52, and the limiting action of the auxiliary teeth 44 by the guide groove 55, and with the help of the lifting rod 41 providing stable support to the middle part of the bottom end of the top block 42, the shaft rod 3 is successively passed through the bearing sleeve 47 on the first lower support assembly 1, through the central perforation of the cable reel, and then through the bearing sleeve 47 on the second lower support assembly 2, and then the two pins 48 are inserted at both ends of the shaft rod 3, and then according to specific usage requirements, the lifting rod 41 is started to automatically move upward The top block 42 is lifted up, and the guide groove 55 guides the auxiliary teeth 44 in a limited position, so that the locking teeth 43 can stably engage with the positioning convex teeth 52 every time they pass through a positioning convex tooth 52, without shaking or tilting left and right, thereby realizing the automatic lifting of the cable reel, and the cable reel can be lifted together with the cable and lifted off the ground to meet the needs of different working conditions. Through the above operation, the automatic lifting function of the lower support device for the cable is realized, and the structure is simple, and only one person is required to complete the assembly and use, and at the same time, the requirement of rotating the cable reel around the shaft rod 3 is realized, which is convenient for the implementation of cable transportation operations, greatly reduces the work intensity of operators, and can ignore the size of the cable reel model. For the basic structural assembly and use mode, please refer to the attached Figure 1 .

[0044] The second embodiment is based on the first embodiment. Figure 1 , Figure 2 , Figure 6 and Fig. 9As shown, an inner corner of the top four panels 21 is fixedly installed with an internal plate 26, a compression spring 27 is installed between the top four panels 21 and the bottom angle panel 22, and the limiter is installed between the two extended wall panels 23, and is integrally mounted on the bolts of the bolt and nut assembly 24, and a long screw 28 is installed inside the bottom angle panel 22, two in number, which can thread the two bottom angle panels 22 with the cooperation of two nuts; the side shape of the structure assembled by the top four panels 21 and the bottom angle panel 22 is a right-angled trapezoid, a movable groove is opened in the middle of the end of the top four panels 21 away from the installation sleeve 25, and a right-angled trapezoidal notch is opened through the middle of the bottom plate of the bottom angle panel 22.

[0045] When the cable drum on an uneven surface needs to be lifted, install the accessories. Fig. 9 As shown in the figure, the compression spring 27 is assembled between the top four panels 21 and the bottom angle panel 22 to utilize the inclined assembly slope of the two, and utilize the compression spring 27 to decompose the load from the cable reel in the horizontal and vertical directions, so that while the compression spring 27 provides shock-absorbing support along the bolt and nut assembly 24 for the sloped surface of the top four panels 21, that is, the extended wall panel 23 at the bottom of the top four panels 21, it can also provide a good rebound support effect for the cable reel when it deviates left or right in the axial direction of the shaft rod 3, and at the same time, it can also provide a shock-absorbing and buffering protection for the cable in the direction perpendicular to the ground. Through the setting and operation of the above-mentioned structure, the risk of the cable reel being tilted to the left or right or even tipping over when it is lifted on a non-completely horizontal ground can be effectively prevented, especially in the process of lifting and lifting large cable reels and cables together, it can play a good stabilizing and supporting effect.

[0046] And in such uneven road conditions, the large right-angled trapezoidal notch formed between the two bottom angle plates 22 can be used to leave the uneven parts of the ground alone in the notch, so as to prevent the protruding parts of the ground from interfering with the fitting of the bottom angle plates 22 with the ground, and the two bottom angle plates 22 are assembled together by the long screw 28, which not only increases the contact area with the ground, but also provides stable support for the top four panels 21, and the side of the structure assembled by the top four panels 21 and the bottom angle plates 22 is in a right-angled trapezoidal structure to enhance the stability of the cable reel against deflection and tipping, so that it is not afraid of the cable reel tilting forward and backward, nor is it afraid of the cable reel tilting left and right, thus ensuring the safety and stability of the lower support device when operated by one person, and the structure is simple and easy to assemble, so as to realize the anti-deflection and anti-sway use mode of the lower support device.

[0047] The third embodiment, based on the first and second embodiments, please refer to Figures 1 to 8As shown, a clamping ring 45 is fixedly installed in the middle of one end of the top block 42 away from the lifting rod 41, and a ball joint 46 is installed on the inner side of the clamping ring 45 to limit the position, which can be adjusted to any angle on the inner side of the clamping ring 45; a bearing sleeve 47 is installed on the inner wall of the ball joint 46, the shaft rod 3 is inserted in the middle of the bearing sleeve 47, and a pin 48 is inserted in the end of the shaft rod 3 close to the clamping ring 45, which is used to limit the two ends of the shaft rod 3 in the bearing sleeve 47 to prevent them from falling off. The shaft rod 3 is movably installed with the clamping ring 45 through the cooperation of the ball joint 46 and the bearing sleeve 47, and can be twisted at any angle around the center of the ball where the ball joint 46 is located.

[0048] A surface of the positioning plate 51 close to the shaft rod 3 is provided with positioning protruding teeth 52 at equal intervals, a connecting block 54 is provided in the middle of a surface away from the shaft rod 3, and a hydraulic cylinder 53 is provided in the middle of the connecting block 54. The end of the hydraulic cylinder 53 away from the connecting block 54 is assembled on the wall plate of the top four panels 21, and the positioning plate 51 is slidably installed with the top four panels 21 through the hydraulic cylinder 53; a card slot is provided on the surface of the positioning plate 51 and at the position corresponding to the positioning protruding teeth 52, which is used to limit the positioning protruding teeth 52. In order to prevent the positioning convex tooth 52 from being separated from the slot, the positioning convex tooth 52 can be squeezed into the slot. A guide groove 55 is provided in the middle of a side of the positioning convex tooth 52 away from the positioning plate 51, and corresponds to the auxiliary tooth 44. Not only can the left and right limit blocking be performed when the locking tooth 43 is engaged with the positioning convex tooth 52, but the positioning convex tooth 52 can also be guided by the auxiliary tooth 44 and the guide groove 55 to perform a straight lifting movement between the two positioning plates 51, thereby playing a guiding and limiting role.

[0049] A cavity is opened in the middle position of the inner part of the positioning convex tooth 52, and a folding strip 56 is fixedly connected to the middle part of the inner wall of the cavity, and the tail end of the folding strip 56 is fixedly connected to the middle part of the inner wall of the slot, and the edge of the positioning convex tooth 52 away from the locking tooth 43 is clamped in the slot, so that the positioning convex tooth 52 as a whole can perform telescopic movement in the slot, and the top block 42 is meshed and installed with the positioning plate 51 through the cooperation of the locking tooth 43 and the positioning convex tooth 52, and the auxiliary tooth 44 guides the locking tooth 43 upward through the guide groove 55.

[0050] When in use, the lifting rod 41 drives the top block 42 to rise, and with the help of the guide groove 55, the auxiliary tooth 44 can be limited in the vertical direction to guide the positioning convex tooth 52 located above the locking tooth 43, and the positioning convex tooth 52 located above the locking tooth 43 is automatically squeezed into the locking groove; when the auxiliary tooth 44 transitions upward to the guide groove 55 of another positioning convex tooth 52, the locking tooth 43 can be guided to automatically engage with the positioning convex tooth 52 above it and be tightly interlocked under the rebound action of the folding strip 56 and the lifting action of the lifting rod 41, thereby realizing the auxiliary lifting and positioning function of the positioning component 5 on the lifting component 4, and effectively avoiding the risk of falling back, ensuring that the lifting component 4 drives the shaft rod 3 and the cable reel to rise smoothly.

[0051] When it is necessary to lower the cable reel, the height of the positioning convex tooth 52 can be lifted up by half first, and when the locking tooth 43 is half-engaged with the positioning convex tooth 52, the hydraulic cylinder 53 is started to retract the positioning plate 51, so that the engagement depth of the locking tooth 43 and the positioning convex tooth 52 is also at half the position. At this time, the rounded curved surface design of the free end of the locking tooth 43 is used to retract the lifting rod 41, and the semi-engaged locking tooth 43 and the positioning convex tooth 52 are used to squeeze the positioning convex tooth 52 back into the slot. At this time, the positioning convex tooth 52 cannot be completely hooked and locked with the locking tooth 43, so the lifting height of the cable reel can be automatically adjusted under the return action of the lifting rod 41.

[0052] Furthermore, the shaft rod 3 can be twisted arbitrarily around the center of the ball where the clamping ring 45 is located through the ball joint 46, so that when the lower supporting device is assembled on both ends of the cable reel, there is no need for precise alignment, and the lower supporting device can be assembled on the cable reel. There is no need to completely coincide the central axis of the bearing sleeve 47 with the central axis of the shaft rod 3, and the lower supporting device can also be used to quickly assemble and lift the cable reel, which can further speed up the assembly process of the lower supporting device at both ends of the cable reel.

[0053] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A cable support device for power grid engineering construction, comprising a first support assembly (1) and a second support assembly (2), characterized in that: A shaft rod (3) is assembled between the first lower supporting assembly (1) and the second lower supporting assembly (2), and the first lower supporting assembly (1) and the second lower supporting assembly (2) have the same structure and can jointly adjust the installation height of the shaft rod (3), and the first lower supporting assembly (1) and the second lower supporting assembly (2) are symmetrically installed with respect to the middle part of the shaft rod (3); The second lower support assembly (2) includes two top four panels (21), and the top four panels (21) are assembled with two bottom angle panels (22) at one end away from the shaft rod (3), and the top four panels (21) and the bottom angle panels (22) are symmetrically installed on both sides of the shaft rod (3), and the edges of the assembly surfaces of the top four panels (21) and the bottom angle panels (22) are fixedly installed with extension wall panels (23), and the extension wall panels (23) are evenly spaced. The top four panels (21) are assembled and installed with the bottom angle panels (22) through the combination of the bolt and nut assemblies (24) and the extension wall panels (23), wherein a mounting sleeve (25) is fixedly installed at the bottom of one end of the bottom angle panel (22) close to the shaft rod (3), and is arranged on the central axis between the two bottom angle panels (22); A lifting assembly (4), which is installed between two top four panels (21) and is used to lift and lower the installation height of the shaft rod (3); A positioning component (5) is assembled on the top four panels (21) and is used to assist in lifting and positioning the lifting component (4).

2. The cable support device for power grid engineering construction according to claim 1, characterized in that: An internal plate (26) is fixedly installed at the inner corner of the top four panels (21), a compression spring (27) is installed between the top four panels (21) and the bottom angle plate (22), and the limiter is installed between the two extended wall panels (23) and is integrally mounted on the bolts of the bolt and nut assembly (24), and two long screws (28) are installed inside the bottom angle plate (22), which can be threadedly installed with the cooperation of two nuts.

3. A cable support device for power grid engineering construction according to claim 2, characterized in that: The side shape of the structure formed by assembling the top four panels (21) and the bottom angle panel (22) is a right-angled trapezoid; a movable groove is provided in the middle of one end of the top four panels (21) away from the installation sleeve (25); and a right-angled trapezoidal notch is provided in the middle of the bottom plate of the bottom angle panel (22).

4. The cable support device for power grid engineering construction according to claim 1, characterized in that: The lifting assembly (4) comprises a lifting rod (41) whose bottom is inserted into a mounting sleeve (25); a top block (42) is mounted on a flange on the telescopic end of the top of the lifting rod (41); a retaining tooth (43) is fixedly connected to the middle of both left and right sides of the top block (42); and a secondary tooth (44) is fixedly mounted on the middle of a side of the retaining tooth (43) away from the lifting rod (41).

5. The cable support device for power grid engineering construction according to claim 4, characterized in that: A clamping ring (45) is fixedly mounted at the middle of one end of the top block (42) away from the lifting rod (41), and a ball joint (46) is mounted on the inner side of the clamping ring (45) to limit the position.

6. The cable support device for power grid engineering construction according to claim 5, characterized in that: A bearing sleeve (47) is installed on the inner wall surface of the ball joint (46), the shaft rod (3) is inserted in the middle of the bearing sleeve (47), and a latch (48) is inserted in one end of the shaft rod (3) close to the clamping ring (45), and the shaft rod (3) is movably installed with the clamping ring (45) through the cooperation of the ball joint (46) and the bearing sleeve (47).

7. The cable support device for power grid engineering construction according to claim 6, characterized in that: The positioning assembly (5) comprises a positioning plate (51) mounted on the top four panels (21) through a movable groove, and the bottom of the positioning plate (51) is limitedly mounted on the built-in panel (26).

8. The cable support device for power grid engineering construction according to claim 7, characterized in that: The positioning plate (51) has positioning protruding teeth (52) installed at equal intervals on one side close to the shaft rod (3), a connecting block (54) installed in the middle of the side away from the shaft rod (3), and a hydraulic cylinder (53) installed in the middle of the connecting block (54), and one end of the hydraulic cylinder (53) away from the connecting block (54) is assembled on the wall plate of the top four panels (21), and the positioning plate (51) is slidably installed with the top four panels (21) through the hydraulic cylinder (53).

9. The cable support device for power grid engineering construction according to claim 8, characterized in that: A clamping groove is provided on the surface of the positioning plate (51) at a position corresponding to the positioning convex tooth (52) for limiting and accommodating the positioning convex tooth (52); a guide groove (55) is provided in the middle of a surface of the positioning convex tooth (52) away from the positioning plate (51) and correspondingly cooperates with the auxiliary tooth (44).

10. The cable support device for power grid engineering construction according to claim 9, characterized in that: A cavity is provided in the middle of the interior of the positioning convex tooth (52), and a folding strip (56) is fixedly connected to the middle of the inner wall of the cavity, and the tail end of the folding strip (56) is fixedly connected to the middle of the inner wall of the slot, and the edge of the positioning convex tooth (52) away from the locking tooth (43) is clamped in the slot, and the top block (42) is meshed and installed with the positioning plate (51) through the cooperation of the locking tooth (43) and the positioning convex tooth (52), and the auxiliary tooth (44) guides the locking tooth (43) upward through the guide groove (55).

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