Cross arm lead fixing device and cross arm
By setting adjustment components and positioning components on the crossbar, the problem of insulator adjustment and crossbar installation efficiency is solved, rapid adjustment of insulator position and efficient fixation of crossbar is achieved, and safety risks of high-altitude operations are reduced.
Patent Information
- Application Number
- CN202420037348.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-08
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-01-08
AI Technical Summary
In the prior art, the insulator and the cross-burst are fixed by bolts, resulting in low efficiency when adjusting the position of the insulator, and the cross-burst needs to be aligned with the installation hole for a long time, which increases the safety hazards of high-altitude operations and the problem of low working efficiency.
Adopt the adjustment assembly including support blocks, limit springs, handles, limit rods and limit slots to achieve flexible adjustment of the insulator position through sliding and elastic connections, and through the positioning assembly, including the positioning rods, limit springs, limit blocks and card blocks , initially fix the mounting frame and crossbar to reduce the alignment time of the mounting hole.
It improves the efficiency of insulator position adjustment, reduces high-altitude working time, reduces safety hazards, and simplifies the cross-load installation process and improves work efficiency.
Smart Images
Figure CN222321065U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power transmission lines, in particular to a cross arm lead fixing device and a cross arm. Background Art
[0002] A crossarm is a supporting structure on a power line or telecommunication line. It is usually horizontally placed across a column or tower and is used to carry conductors, cables or other wires. The main function of the crossarm is to support and fix the conductors to keep them in proper position and tension, while ensuring the stability and reliability of the line. Insulators are usually installed above the crossarm to suspend the wires and provide insulation.
[0003] The fixing method of the insulator is generally to drill holes on the crossarm and then use bolts and nuts to fix the insulator on the crossarm. When adjusting the line position, the position of the insulator needs to be adjusted. When adjusting, the bolts and nuts need to be turned back and forth. This process takes a long time and is inefficient. In addition, the crossarm is generally installed on the top of the pole. Long-term high-altitude work will increase safety hazards. At the same time, when installing common crossarms, bolts are usually used to fix the crossarm and the mounting frame, so that the mounting frame and the crossarm clamp the pole to complete the installation. When installing the bolts, it is necessary to align with the mounting hole, but the mounting frame and the crossarm have a certain weight. When aligning with the mounting hole, the mounting frame and the crossarm will shake, which results in a long time to align the mounting hole, making the work efficiency low. Utility Model Content
[0004] In order to remedy the above deficiencies, the utility model provides a crossarm lead fixing device, which aims to improve the problem mentioned in the prior art that "the insulator and the crossarm are fixed by bolts, which makes it troublesome to adjust the position of the insulator, takes a long time and is inefficient".
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cross-arm lead-in fixing device, comprising a utility pole, a cross-arm is arranged on the front surface of the utility pole, a mounting frame is arranged on the rear surface of the utility pole, an adjustment assembly is arranged on the upper surface of the cross-arm, the adjustment assembly comprises a support block, an insulator is fixedly connected to the upper surface of the support block, and a handle is elastically connected to the inner wall of the support block via a limit spring.
[0006] As a further description of the above technical solution:
[0007] The support block is slidably connected to the upper surface of the cross arm, the handle is slidably connected to the inner wall of the support block, one end of the limit spring is fixedly connected to the inner wall of the top end of the support block, and the other end of the limit spring is fixedly connected to the upper surface of the handle.
[0008] As a further description of the above technical solution:
[0009] The lower surface of the handle is fixedly connected to a limiting rod, and the upper surface of the cross arm is provided with a limiting groove.
[0010] As a further description of the above technical solution:
[0011] The limiting rod is inserted into the inner wall of the limiting groove, a protrusion is arranged on the lower surface of the handle, and the limiting grooves are provided in multiple groups, and the multiple groups of limiting grooves are evenly distributed on the upper surface of the cross arm.
[0012] As a further description of the above technical solution:
[0013] A positioning assembly is provided on the rear surface of the cross arm, and the positioning assembly includes a positioning rod, the inner wall of the positioning rod is elastically connected to a positioning block through a positioning spring, a positioning groove is provided on the front surface of the mounting frame, a bolt passes through and slides on the front surface of the cross arm, a nut is threadedly connected to the outer wall of the bolt, and a clamping block is fixedly connected to the rear surface of the cross arm.
[0014] As a further description of the above technical solution:
[0015] The positioning block passes through and is slidably connected to the right surface of the positioning rod, the rear surface of the positioning block is an inclined surface, one end of the positioning spring is fixedly connected to the left surface of the positioning block, and the other end of the positioning spring is fixedly connected to the inner wall of the left side of the positioning rod.
[0016] As a further description of the above technical solution:
[0017] The positioning rod is inserted into the inner wall of the positioning groove, and the bolt penetrates and slides on the front surface of the mounting frame.
[0018] The utility model also provides a cross arm, comprising the cross arm lead fixing device as described above.
[0019] The utility model has the following beneficial effects:
[0020] 1. In the utility model, the position of the insulator can be flexibly adjusted through the cooperation of the support block, the limit spring, the handle, the limit rod and the limit groove, which reduces the time spent on adjustment, improves work efficiency, reduces the time of high-altitude operations of workers, and reduces safety hazards.
[0021] 2. In the utility model, the mounting frame and the cross arm can be initially fixed by the cooperation of the positioning rod, the positioning spring, the positioning block, the clamping block and the positioning groove, and the shaking of the device during installation can be reduced. When the mounting frame and the cross arm are initially fixed, the mounting holes will be aligned, which can facilitate the installation of subsequent bolts, reduce the time spent on the installation of the cross arm, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic front view of the three-dimensional structure of the overall device in the utility model;
[0023] Figure 2 It is a rear view schematic diagram of the three-dimensional structure of the overall device in the utility model;
[0024] Figure 3 It is a top view schematic diagram of the three-dimensional structure of the mounting frame, cross arm and positioning assembly in the utility model;
[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the mounting frame, cross arm and positioning assembly in the utility model;
[0026] Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the cross arm and the support block in the utility model;
[0027] Figure 6 It is a schematic cross-sectional view of the three-dimensional structure of the positioning rod in the utility model.
[0028] Legend:
[0029] 1. Electric pole; 2. Cross arm; 3. Mounting frame; 41. Positioning rod; 42. Positioning spring; 43. Positioning block; 44. Bolt; 45. Nut; 46. Block; 401. Positioning slot; 51. Support block; 52. Insulator; 53. Limiting spring; 54. Handle; 55. Limiting rod; 501. Limiting slot. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] Reference Figure 1 , Figure 3 , Figure 5 and Figure 6The utility model provides an embodiment: a cross-arm lead fixing device, comprising a utility pole 1 connected to the overall device, a cross-arm 2 for supporting an insulator 52 is provided on the front surface of the utility pole 1, a mounting frame 3 is provided on the rear surface of the utility pole 1, the inner wall of the mounting frame 3 is an arc surface, which fits the utility pole 1, and the cross-arm 2 can be fixed to the utility pole 1 through the cooperation of the cross-arm 2 and the mounting frame 3, an adjustment component is provided on the upper surface of the cross-arm 2, and the adjustment component can control the position of the insulator 52, the adjustment component comprises a support block 51, an insulator 52 is fixedly connected to the upper surface of the support block 51, the lead is fixed on the insulator 52, the insulator 52 is made of ceramic material, which can play an insulating effect and prevent arcing when the lead transmits current, the support block 51 and the insulator 52 will move synchronously, and the inner wall of the support block 51 is elastically connected to a handle 54 through a limit spring 53.
[0032] Reference Figure 1 and Figure 5 The support block 51 is slidably connected to the upper surface of the cross arm 2, and the support block 51 slides left and right along the upper surface of the cross arm 2. The handle 54 is slidably connected to the inner wall of the support block 51, and the handle 54 slides up and down along the inner wall of the support block 51. One end of the limit spring 53 is fixedly connected to the inner wall at the top of the support block 51, and the other end of the limit spring 53 is fixedly connected to the upper surface of the handle 54. When the handle 54 moves upward, it will squeeze the limit spring 53 to generate a reaction force. The lower surface of the handle 54 is fixedly connected to the limit rod 55, and a limit groove 501 is provided on the upper surface of the cross arm 2.
[0033] Reference Figure 1 and Figure 5 The limiting rod 55 is inserted into the inner wall of the limiting groove 501, which can limit the support block 51. The lower surface of the handle 54 is provided with protrusions, and there are multiple groups of protrusions. Fingers can be stuck in the gaps between the multiple groups of protrusions, which is convenient for pulling the handle 54. There are multiple groups of limiting grooves 501, and the multiple groups of limiting grooves 501 are evenly distributed on the upper surface of the cross arm 2. When the limiting rod 55 is inserted into the limiting grooves 501 at different positions, the insulator 52 will be fixed at different positions.
[0034] Reference Figure 3 , Figure 4 and Figure 6The rear surface of the cross arm 2 is provided with a positioning assembly, which can facilitate the installation of the cross arm 2. The positioning assembly includes a positioning rod 41, and the inner wall of the positioning rod 41 is elastically connected with a positioning block 43 through a positioning spring 42. The front surface of the mounting frame 3 is provided with a positioning groove 401. Through the cooperation of the positioning rod 41 and the positioning groove 401, the cross arm 2 and the mounting frame 3 can be initially fixed. A bolt 44 penetrates and slides through the front surface of the cross arm 2. The outer wall of the bolt 44 is threadedly connected with a nut 45. The bolt 44 and the nut 45 can fix the cross arm 2. The cross arm 2 and the mounting frame 3 are fixed. After the bolts 44 and the nuts 45 are tightened, the cross arm 2 and the mounting frame 3 will be in close contact with the utility pole 1, so that the cross arm 2 is fixed on the utility pole 1. The rear surface of the cross arm 2 is fixedly connected with a clamping block 46. The rear surface of the clamping block 46 can contact the front surface of the utility pole 1, which can increase the contact area between the cross arm 2 and the utility pole 1. Two groups of clamping blocks 46 are provided, which are symmetrically distributed with respect to the center of the utility pole 1. During installation, the clamping blocks 46 can clamp the utility pole 1, which can enhance the stability during installation.
[0035] Reference Figure 6 The positioning block 43 passes through and is slidably connected to the right surface of the positioning rod 41. The rear surface of the positioning block 43 is an inclined surface. By squeezing the inclined surface of the positioning block 43, the positioning block 43 will move to the left. One end of the positioning spring 42 is fixedly connected to the left surface of the positioning block 43, and the other end of the positioning spring 42 is fixedly connected to the inner wall of the left side of the positioning rod 41. The positioning block 43 moving to the left will squeeze the positioning spring 42 to generate a reaction force. The positioning rod 41 is inserted into the inner wall of the positioning groove 401, which can preliminarily fix the mounting frame 3 of the crossarm 2, and the mounting holes on the crossarm 2 and the mounting frame 3 can be aligned, and then the bolt 44 can be inserted into the mounting hole and the nut 45 can be screwed on to complete the installation work. This process can reduce the time spent on aligning the mounting holes. The bolt 44 passes through and slides on the front surface of the mounting frame 3.
[0036] The utility model also provides a cross arm, comprising the cross arm lead fixing device as described above.
[0037] Working principle: When in use, the staff first climbs up to the top of the pole 1 with the tools required for installation, and then hangs the cross arm 2 and the mounting frame 3 up.
[0038] Then the staff will align the block 46 with the curved surface of the front surface of the utility pole 1 and fit the two together. The block 46 will be stuck on the front surface of the utility pole 1, increasing the contact area between the cross arm 2 and the utility pole 1, which can effectively prevent the cross arm 2 from shaking left and right during installation. Then the positioning groove 401 on the front surface of the mounting frame 3 will be aligned with the positioning rod 41 and plugged in. During the insertion process, the mounting frame 3 will squeeze the curved surface of the positioning block 43. After the curved surface of the positioning block 43 is squeezed, it will move to the left and retract into the inside of the positioning rod 41 to release the obstruction to the mounting frame 3. During the process of the positioning block 43 retracting into the positioning rod 41, the positioning spring 42 will be squeezed to generate a reaction force. When the positioning rod 41 and the positioning block 43 pass through the positioning groove 401, the reaction force of the positioning spring 42 will push the positioning block 43 to move to the right. At this time, the positioning block 43 cannot pass through the positioning groove 401, and the mounting frame 3 and the cross arm 2 will be initially fixed.
[0039] After the mounting frame 3 and the cross arm 2 are initially fixed, the mounting holes on the mounting frame 3 and the cross arm 2 will be aligned. At this time, the bolts 44 are passed through the mounting holes and the nuts 45 are tightened to fix the cross arm 2 and the mounting frame 3, thereby completing the installation of the cross arm 2.
[0040] When the lead position needs to be adjusted, just grab the handle 54 and move it upward. The handle 54 will drive the limit rod 55 to move upward to disengage from the limit slot 501 and release the limit, and the handle 54 moving upward will squeeze the limit spring 53 to generate a reaction force. After the limit rod 55 is disengaged from the limit slot 501, the support block 51 can move, and then the support block 51 is moved horizontally as needed to drive the insulator 52 and the lead to move synchronously. When the lead moves to the desired position, stop moving the support block 51 and release the handle 54. The handle 54 and the limit rod 55 will move downward due to the reaction force of the limit spring 53, and the limit rod 55 moving downward will be plugged into another limit slot 501 to limit the support block 51, thereby ensuring the stability of the insulator 52 and the lead position.
[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A cross arm lead fixing device, comprising a utility pole (1), characterized in that: The front surface of the utility pole (1) is provided with a cross arm (2), the rear surface of the utility pole (1) is provided with a mounting frame (3), the upper surface of the cross arm (2) is provided with an adjustment assembly, the adjustment assembly comprising a support block (51), the upper surface of the support block (51) is fixedly connected to an insulator (52), and the inner wall of the support block (51) is elastically connected to a handle (54) via a limit spring (53).
2. A cross arm lead fixing device according to claim 1, characterized in that: The support block (51) is slidably connected to the upper surface of the cross arm (2), the handle (54) is slidably connected to the inner wall of the support block (51), one end of the limit spring (53) is fixedly connected to the inner wall at the top end of the support block (51), and the other end of the limit spring (53) is fixedly connected to the upper surface of the handle (54).
3. A cross arm lead fixing device according to claim 1, characterized in that: The lower surface of the handle (54) is fixedly connected to a limiting rod (55), and the upper surface of the cross arm (2) is provided with a limiting groove (501).
4. A cross arm lead fixing device according to claim 3, characterized in that: The limiting rod (55) is inserted into the inner wall of the limiting groove (501), a protrusion is provided on the lower surface of the handle (54), and the limiting groove (501) is provided with a plurality of groups, and the plurality of groups of limiting grooves (501) are evenly distributed on the upper surface of the cross arm (2).
5. A cross arm lead fixing device according to claim 1, characterized in that: A positioning assembly is provided on the rear surface of the cross arm (2), the positioning assembly comprising a positioning rod (41), the inner wall of the positioning rod (41) being elastically connected to a positioning block (43) via a positioning spring (42), a positioning groove (401) being provided on the front surface of the mounting frame (3), a bolt (44) penetrating and sliding through the front surface of the cross arm (2), a nut (45) being threadedly connected to the outer wall of the bolt (44), and a clamping block (46) being fixedly connected to the rear surface of the cross arm (2).
6. A cross arm lead fixing device according to claim 5, characterized in that: The positioning block (43) penetrates through and is slidably connected to the right surface of the positioning rod (41); the rear surface of the positioning block (43) is an inclined surface; one end of the positioning spring (42) is fixedly connected to the left surface of the positioning block (43); and the other end of the positioning spring (42) is fixedly connected to the inner wall on the left side of the positioning rod (41).
7. A cross arm lead fixing device according to claim 5, characterized in that: The positioning rod (41) is inserted into the inner wall of the positioning groove (401), and the bolt (44) penetrates and slides on the front surface of the mounting frame (3).
8. A cross arm, characterized in that: It comprises a cross arm lead fixing device as described in any one of claims 1-7.