Supporting and fixing device for overhead line of power grid
By designing a support fixing device including mounting base plate, insulator and top fixing member, the device is adjusted and calibrated by using screws, rotary blocks, calibration blocks and adjustment rods, and providing buffering effect through elastic parts, the problems of irreconciliation of the existing device length and lack of buffering are solved, and the stable fixation and safe use of overhead lines are achieved.
Patent Information
- Application Number
- CN202411418845.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-02-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing overhead line support device cannot be adjusted in length according to actual needs, and the placement block and the overhead line are fixedly connected, lacking buffering, and are prone to breaking when affected by external influences.
A support fixing device including a mounting base plate, a first insulator, a second insulator and a top fixing member is designed. By providing a screw, a rotary block, a calibration block and an adjustment rod, the horizontal calibration of the mounting base plate and the length adjustment of the adjustment rod are realized, and a buffering effect is provided through the elastic member.
It realizes convenient adjustment and use of support fixtures, ensures stable fixation of overhead lines, and reduces the risk of fracture due to external influences.
Smart Images
Figure CN119543023A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of power grid overhead line installation, and in particular relates to a supporting and fixing device for power grid overhead lines. Background Art
[0002] Overhead lines mainly refer to overhead open lines, which are transmission lines erected above the ground. They have the advantages of low cost, strong mobility, and easy maintenance. When installing overhead lines, they need to be fixed and limited by insulating support devices. At present, the existing insulating support devices are mainly composed of insulators and U-shaped placement blocks, wherein the lower end of the insulator is fixedly connected to the crossarm bracket, and the upper end is provided with a U-shaped placement block for fixing the overhead line. When this structure is used in practice, the overall structure is relatively simple and the length cannot be adjusted according to actual needs. In addition, the placement block is fixedly connected to the overhead line. Since it does not have a certain buffering capacity, when the overhead line is shaken by external influences, it is easy to break. Risk; Therefore, in order to solve the above problems, it is necessary to develop a support and fixing device for overhead power line with convenient adjustment operation and good use effect. Summary of the invention
[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a supporting and fixing device for an overhead power line of a power grid which has convenient adjustment operation and good use effect.
[0004] The objective of the present invention is achieved in this way: A supporting and fixing device for an overhead line of a power grid comprises a mounting base plate, a first insulator, a second insulator and a top fixing piece, wherein the mounting base plate is arranged horizontally as a whole, and mounting holes are arranged vertically at both ends of its upper surface, and threaded holes are arranged on the inner side of the mounting holes, and a screw rod is arranged inside the threaded hole for vertical thread rotation, the upper end of the screw rod is located above the mounting base plate, and a rotating block is fixedly arranged concentrically, and the lower end is located below the mounting base plate, and a calibration block is fixedly arranged concentrically; the first insulator is fixedly arranged vertically at the center of the upper surface of the mounting base plate, the second insulator is located directly above the first insulator, and an intermediate adjustment piece is fixedly arranged between the second insulator and the first insulator, and the intermediate adjustment piece is composed of an upper plate, a lower plate, an adjustment rod and a telescopic guide rod. The upper plate is fixedly arranged below the second insulator, and the lower plate is fixedly arranged above the first insulator. The adjusting rod is vertically fixedly arranged in the middle between the upper plate and the lower plate. There are two telescopic guide rods, which are respectively vertically fixedly arranged at both ends between the upper plate and the lower plate; the top fixing member is located above the second insulator, and it includes a fixing plate, a pressing plate and a limiting member. The fixing plate is horizontally fixedly arranged above the second insulator, and both ends of the upper surface of the fixing plate are vertically fixed with support rods, the pressing plate is parallel to the fixing plate, and is limited by bolts above the two support rods, and two through holes are arranged in the middle of the upper surface of the pressing plate, the limiting member is U-shaped as a whole, and an elastic member is vertically fixedly arranged between its lower surface and the fixing plate, and the two ends of the upper surface are respectively located above the pressing plate through the through holes.
[0005] Furthermore, the external threaded rotating sleeve of the screw rod is provided with a limiting nut, and the limiting nut is located between the mounting base plate and the calibration block.
[0006] Furthermore, the adjusting rod is composed of a threaded sleeve and an adjusting screw threadably arranged at the upper end and the lower end of the threaded sleeve.
[0007] Furthermore, a partition is fixedly provided in the middle of the inner surface of the threaded sleeve, and a square block is fixedly provided in the middle of the outer surface.
[0008] Furthermore, the elastic member is composed of a telescopic vertical rod and a spring sleeved on the outside of the telescopic vertical rod.
[0009] Beneficial effects of the present invention: The present invention provides a mounting hole, which can be used to facilitate the fixed connection between the mounting base plate and the power grid support through fixing bolts. By providing a threaded hole, a screw rod, a rotating block and a calibration block, and utilizing the threaded rotation connection between the screw rod and the threaded hole, the screw rod can be rotated to drive the calibration block to move in the vertical direction while the screw rod rotates, and then the movement of the calibration block can be used to calibrate the position of the mounting base plate. With this structure, the calibration blocks at both ends of the mounting base plate can be matched to keep the mounting base plate horizontal during fixed installation, thereby avoiding the problem that the mounting base plate is tilted due to the tilt of the power grid support, thereby affecting the subsequent use of the present invention. By arranging an upper plate, a lower plate, an adjusting rod, a threaded sleeve and a telescopic guide rod, and utilizing the guiding effect of the telescopic guide rod and the threaded sleeve connection between the screw sleeve and the screws at both ends thereof, the threaded sleeve can be rotated so that the screw can be driven to move in the vertical direction while the threaded sleeve rotates, thereby realizing adjustment of the overall length of the adjusting rod. With this structure, the height of the second insulator and the top fixing part can be adjusted by adjusting the overall length of the adjusting rod, thereby increasing its applicability. By arranging an elastic part and utilizing the elastic thrust effect of the elastic part, the overhead power line of the power grid can be clamped and limited by the U-shaped limiter in cooperation with the pressure plate, and at the same time, a shock-absorbing and buffering protection effect can be achieved for the overhead power line of the power grid, thereby reducing the risk of breakage when it is subjected to severe shaking. In general, the present invention has the advantages of convenient adjustment operation and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a front view of the present invention.
[0011] Figure 2 It is a cross-sectional view of the front view of the top fixing member in the present invention.
[0012] Figure 3 It is a sectional view of the front view of the intermediate adjusting member in the present invention.
[0013] Figure 4 It is a sectional view of the front view of the installation base plate in the present invention.
[0014] In the figure: 1, mounting base plate 11, mounting hole 12, threaded hole 13, screw 14, rotating block 15, calibration block 16, limit nut 2, first insulator 3, second insulator 4, top fixing part 41, fixing plate 42, pressure plate 43, limit part 44, support rod 45, through hole 46, elastic part 5, middle adjusting part 51, upper plate 52, lower plate 53, adjusting rod 531, threaded sleeve 54, telescopic guide rod. DETAILED DESCRIPTION
[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a supporting and fixing device for an overhead line of a power grid comprises a mounting base plate 1, a first insulator 2, a second insulator 3 and a top fixing piece 4. The mounting base plate 1 is arranged horizontally as a whole, and mounting holes 11 are arranged vertically at both ends of its upper surface. A threaded hole 12 is arranged inside the mounting hole 11, and a screw rod 13 is rotatably penetrated inside the threaded hole 12. The upper end of the screw rod 13 is located above the mounting base plate 1, and a rotating block 14 is fixedly arranged concentrically thereon, and the lower end is located below the mounting base plate 1, and a calibration block 15 is fixedly arranged concentrically thereon; the first insulator 2 is vertically fixedly arranged at the center of the upper surface of the mounting base plate 1, the second insulator 3 is located directly above the first insulator 2, and an intermediate adjusting piece 5 is fixedly arranged between the second insulator 3 and the first insulator 2, and the intermediate adjusting piece 5 is composed of an upper plate 51, a lower plate 52, an adjusting rod 53 and a telescopic guide rod 54, and the upper plate 51 is fixedly arranged at Below the second insulator 3, the lower plate 52 is fixedly arranged above the first insulator 2, the adjusting rod 53 is vertically fixedly arranged in the middle between the upper plate 51 and the lower plate 52, and there are two telescopic guide rods 54, which are vertically fixedly arranged at both ends between the upper plate 51 and the lower plate 52; the top fixing member 4 is located above the second insulator 3, which includes a fixing plate 41, a pressing plate 42 and a limiting member 43, the fixing plate 41 is horizontally fixedly arranged above the second insulator 3, and both ends of the upper surface of the fixing plate 41 are vertically fixed with support rods 44, the pressing plate 42 is parallel to the fixing plate 41, and is limited by bolts above the two support rods 44, and two through holes 45 are arranged in the middle of the upper surface of the pressing plate 42, the limiting member 43 is U-shaped as a whole, and an elastic member 46 is vertically fixedly arranged between its lower surface and the fixing plate 41, and the two ends of the upper surface are respectively located above the pressing plate 42 through the through holes 45.
[0017] The external threaded rotation sleeve of the screw rod 13 is provided with a limit nut 16, and the limit nut 16 is located between the mounting base plate 1 and the calibration block 15. The adjusting rod 53 is composed of a threaded sleeve 531 and an adjusting screw threadedly rotatably arranged at the upper and lower ends of the threaded sleeve 531. A partition is fixedly provided in the middle of the inner surface of the threaded sleeve 531, and a square block is fixedly provided in the middle of the outer surface. The square block can increase the convenience of the rotation operation of the threaded sleeve 531. The elastic member 46 is composed of a telescopic vertical rod and a spring sleeved on the outside of the telescopic vertical rod.
[0018] When the present invention is used, first, the present invention is placed as a whole at the position to be installed in the power grid support, and then, the rotating block 14 is rotated by external force. At this time, the rotation of the rotating block 14 can drive the screw rod 13 to rotate, so that the threaded rotation connection between the screw rod 13 and the threaded hole 12 can be used to drive the calibration block 15 to move in the vertical direction while the screw rod 13 rotates, and then the two calibration blocks 15 cooperate to calibrate the position of the mounting base plate 1 so that the mounting base plate 1 remains horizontal. After that, the fixing bolts are passed through the mounting holes 11 to achieve a fixed connection between the mounting base plate 1 and the power grid support. The present invention adopts this structure to avoid the problem that the mounting base plate 1 is tilted due to the tilt of the power grid support, thereby affecting the subsequent use of the present invention. Then, according to the height of the overhead line, the overall length of the present invention is adjusted. The specific operation is as follows: by using the guiding effect of the telescopic guide rod 54 and the threaded sleeve connection between the screw sleeve 531 and the screws at both ends thereof, the screw rod 13 can be rotated by rotating the threaded guide rod 54. The sleeve 531, so that when the threaded sleeve 531 rotates, the screw rod is driven to move in the vertical direction, thereby realizing the adjustment of the overall length of the adjusting rod 53. At this point, the overall length of the present invention and the height adjustment of the second insulator 3 and the top fixing member 4 can be realized by adjusting the overall length of the adjusting rod 53, thereby increasing its applicability; finally, the overhead line is placed inside the U-shaped limiter 43, and the pressing plate 42 is placed above the limiter 43 through the sliding fit between the two ends of the upper surface of the U-shaped limiter 43 and the through hole 45. After completing the above operations, the limiting connection between the pressing plate 42 and the support rod 44 is completed by bolts. At this point, the elastic thrust of the elastic member 46 on the limiter 43 can be used to clamp and limit the power grid overhead line through the U-shaped limiter 43 and the pressing plate 42, and its elasticity can also be used to play a shock-absorbing and buffering protection effect on the power grid overhead line, thereby reducing the risk of fracture when it is subjected to severe shaking; in general, the present invention has the advantages of convenient adjustment operation and good use effect.
[0019] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the specific implementation modes of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
Claims
1. A supporting and fixing device for an overhead power line, comprising a mounting base plate (1), a first insulator (2), a second insulator (3) and a top fixing member (4), characterized in that: The mounting base plate (1) is arranged horizontally as a whole, and mounting holes (11) are arranged vertically at both ends of its upper surface, and threaded holes (12) are arranged inside the mounting holes (11), and a screw rod (13) is arranged inside the threaded holes (12) to rotate vertically, and the upper end of the screw rod (13) is located above the mounting base plate (1) and is coaxially fixed with a rotating block (14), and the lower end is located below the mounting base plate (1) and is coaxially fixed with a calibration block (15); the first insulator (2 ) is vertically fixedly arranged at the center of the upper surface of the mounting base plate (1), the second insulator (3) is located directly above the first insulator (2), and an intermediate adjustment member (5) is fixedly arranged between the second insulator (3) and the first insulator (2), the intermediate adjustment member (5) comprising an upper plate (51), a lower plate (52), an adjustment rod (53) and a telescopic guide rod (54), the upper plate (51) is fixedly arranged below the second insulator (3), the lower plate (52) is fixedly arranged above the first insulator (2), and the intermediate adjustment member (5) is fixedly arranged between the second insulator (3) and the first insulator (2). The adjusting rod (53) is vertically fixedly arranged at the middle part between the upper plate (51) and the lower plate (52); the telescopic guide rods (54) are provided in two pieces, which are vertically fixedly arranged at the two ends between the upper plate (51) and the lower plate (52); the top fixing member (4) is located above the second insulator (3), and comprises a fixing plate (41), a pressing plate (42) and a limiting member (43); the fixing plate (41) is horizontally fixedly arranged above the second insulator (3), and is fixedly arranged at the bottom of the second insulator (3). Support rods (44) are vertically fixedly arranged at both ends of the upper surface of the fixed plate (41); the pressure plate (42) is parallel to the fixed plate (41) and is limitedly arranged above the two support rods (44) by bolts; and two through holes (45) are arranged in the middle of the upper surface of the pressure plate (42); the limiting member (43) is U-shaped as a whole, and an elastic member (46) is vertically fixedly arranged between its lower surface and the fixed plate (41); and the two ends of the upper surface are respectively located above the pressure plate (42) through the through holes (45).
2. A supporting and fixing device for an overhead power line according to claim 1, characterized in that: The external threaded rotating sleeve of the screw rod (13) is provided with a limiting nut (16), and the limiting nut (16) is located between the mounting base plate (1) and the calibration block (15).
3. A supporting and fixing device for an overhead power line of a power grid as claimed in claim 1, characterized in that: The adjusting rod (53) is composed of a threaded sleeve (531) and adjusting screws threadably arranged at the upper end and the lower end of the threaded sleeve (531).
4. A supporting and fixing device for an overhead power line of a power grid as claimed in claim 3, characterized in that: A partition is fixedly provided in the middle of the inner surface of the threaded sleeve (531), and a square block is fixedly provided in the middle of the outer surface.
5. A supporting and fixing device for an overhead power line of a power grid as claimed in claim 1, characterized in that: The elastic member (46) is composed of a telescopic vertical rod and a spring sleeved on the outside of the telescopic vertical rod.