Tower line distance measuring device for power transmission line

Abstract

The utility model discloses a tower line distance measuring device for a power transmission line, and relates to the technical field of power transmission line inspectors, the tower line distance measuring device comprises a tower section and an anti-skid assembly, the anti-skid assembly is arranged in the tower section, the anti-skid assembly comprises anti-drop holes symmetrically arranged at two sides of the bottom end of the tower section, anti-drop pins are axially and slidably arranged in the anti-drop holes at two sides, and the anti-drop pins are arranged in the anti-drop holes at two sides. The tower section is provided with an anti-falling pin, the anti-falling pin is fixedly connected to the two ends of the clamping spring, the clamping spring is made of spring steel and is of a V-shaped structure, and a fool-proof assembly is arranged in the tower section and comprises inserting holes formed in the upper end and the lower end of the tower section. According to the tower line distance measuring device for the power transmission line, when the tower line distance measuring device is used, the tower sections are located in the tower body and sequentially drawn out, and when each section of ruler body is drawn out, the clamping springs at the bottom ends of the tower sections push the anti-falling pins to stretch out under the action of elastic force, so that the anti-falling pins are clamped at the joint of the tower sections at the upper end and the lower end; and the risk of accidental contraction of the telemeter rod during high-altitude operation can be completely eradicated.

Description

Technical Field

[0001] This utility model relates to the technical field of transmission line inspection tools, specifically a tower-to-line distance measuring device for transmission lines. Background Technology

[0002] The tower-to-line distance refers to the safe distance between the tower and the conductor in a transmission line. It is the minimum distance that must be maintained, especially in high-voltage environments, to avoid the danger of discharge. When measuring this tower-to-line distance, a tower ruler is used as a vertical scale. A height reference system is established through its scale. The tower ruler is placed vertically against the tower components. The theodolite is used to aim at the lowest point of the conductor, and the difference in scale ΔH between the two is read on the tower ruler. This directly reflects the safe distance in the vertical direction.

[0003] However, existing leveling rods are usually made of aluminum alloy, which is not insulating. This poses a safety hazard such as electric shock during measurement. Moreover, each section of the leveling rod is connected by clips. If the clips are not properly engaged during use, the leveling rod section is prone to loosening or sliding, causing the height data to fluctuate and produce centimeter-level errors. Furthermore, loose sections may suddenly contract, causing the instrument to fall and be damaged, or even endangering the operator's safety if the leveling rod tipps over. Utility Model Content

[0004] The purpose of this invention is to provide a tower-to-line distance measuring device for power transmission lines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tower line distance measuring device for transmission lines, comprising a tower section and an anti-slip component, wherein the tower section has an anti-slip component built in, and the anti-slip component includes anti-detachment holes symmetrically arranged on both sides of the bottom end of the tower section, and anti-detachment pins are axially slidably installed inside the anti-detachment holes on both sides, and the anti-detachment pins are fixedly connected to both ends of the retaining spring.

[0006] Furthermore, the retaining ring is made of spring steel and has a "V" shaped structure.

[0007] Furthermore, the tower section has a built-in foolproof component, which includes insertion holes at the upper and lower ends of the tower section, and a pin is axially slidably installed inside the insertion holes.

[0008] Furthermore, the foolproof component also includes a sleeve fitted over the outside of the pin, and the root of the sleeve is fixed to the inner wall of the tower section.

[0009] Furthermore, the foolproof component also includes a spring sleeved at the root of the pin, and the pin is elastically connected to the inner wall of the sleeve opening through the spring.

[0010] Furthermore, the foolproof assembly also includes a trigger rod radially inserted into the middle of the sleeve, and the stepped groove on the side of the trigger rod abuts against the plane of the tail end of the pin.

[0011] Furthermore, the foolproof component also includes connecting rods on both sides of the top of the trigger rod, and the connecting rods are hinged to the V-shaped machined inner wall of the snap ring.

[0012] Furthermore, the multiple tower sections are stacked inside the tower body, and both the tower sections and the tower body are made of insulating rigid ABS material. Scale markings are also evenly spaced along the length of the tower sections and the tower body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When using this utility model, the tower sections are pulled out one by one inside the tower body. Each time a section is pulled out, the retaining spring at the bottom of the tower section will push the anti-detachment pin out under the action of elastic force, so that the anti-detachment pin is locked at the joint of the upper and lower tower sections, which can completely eliminate the risk of the tower ruler accidentally retracting during high-altitude operations.

[0015] 2. When this utility model is in use, as the V-shaped retaining spring extends to both sides and pushes the anti-detachment pin out, the connecting rods hinged to the inner walls of both sides of the retaining spring also pull the trigger rod down simultaneously. Then, through the abutment cooperation between the stepped groove on the side of the trigger rod and the plane of the pin's tail end, the pin extends out from the sleeve opening and is inserted into the insertion hole provided at the upper end of the next tower section. Only when the pin is inserted into place can the next tower section be pulled out from the tower body. This foolproof structure design reduces the operation and verification steps and improves the efficiency of field operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0017] Figure 2 This is a schematic diagram of the anti-slip component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the error-proof component structure of this utility model.

[0019] In the diagram: 1. Tower section; 2. Anti-slip component; 201. Anti-detachment hole; 202. Anti-detachment pin; 203. Snap ring; 3. Foolproof component; 301. Insertion hole; 302. Pin; 303. Sleeve; 304. Spring; 305. Trigger rod; 306. Connecting rod; 4. Tower body; 5. Scale markings. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1 to 2 As shown, a tower line distance measuring device for transmission lines includes a tower section 1 and an anti-slip component 2. The tower section 1 has the anti-slip component 2 built in. The anti-slip component 2 includes anti-detachment holes 201 symmetrically arranged on both sides of the bottom end of the tower section 1. Anti-detachment pins 202 are axially slidably installed inside the anti-detachment holes 201 on both sides. The anti-detachment pins 202 are fixedly connected to both ends of the retaining springs 203. The retaining springs 203 are made of spring steel and have a "V" shaped structure.

[0022] The specific operation is as follows: The tower section 1 is located inside the tower body 4 and is pulled out one by one. When each section is pulled out, the retaining spring 203 at the bottom of the tower section 1 will push the anti-detachment pin 202 out under the action of elastic force, so that the anti-detachment pin 202 is locked at the joint of the upper and lower tower sections 1, which can completely eliminate the risk of the tower ruler accidentally retracting during high-altitude operations.

[0023] like Figures 1 to 3 As shown, tower section 1 has a built-in anti-mistake component 3. The anti-mistake component 3 includes insertion holes 301 at both ends of tower section 1, and a pin 302 is axially slidably installed inside the insertion holes 301. The anti-mistake component 3 also includes a sleeve 303 sleeved on the outside of the pin 302, and the root of the sleeve 303 is fixed to the inner wall of tower section 1. The anti-mistake component 3 also includes a spring 304 sleeved on the root of the pin 302, and the pin 302 is elastically connected to the inner wall of the opening of the sleeve 303 through the spring 304. The anti-mistake component 3 also includes a diameter... The trigger rod 305 is inserted into the middle of the sleeve 303, and the stepped groove on the side of the trigger rod 305 abuts against the plane of the tail end of the pin 302. The foolproof component 3 also includes connecting rods 306 connected to both sides of the top of the trigger rod 305, and the connecting rods 306 are hinged to the "V" shaped inner wall of the snap ring 203. Multiple tower sections 1 are stacked inside the tower body 4, and both the tower sections 1 and the tower body 4 are made of insulating hard ABS material. Scale markings 5 ​​are evenly spaced along the length direction on the tower sections 1 and the tower body 4.

[0024] The specific operation is as follows: When the V-shaped retaining ring 203 extends to both sides to push the anti-detachment pin 202 out, the connecting rod 306 hinged to the inner wall of both sides of the retaining ring 203 also pulls the trigger rod 305 down at the same time. Then, through the abutment cooperation between the stepped groove on the side of the trigger rod 305 and the plane of the tail end of the pin 302, the pin 302 extends out from the opening of the sleeve 303 and is inserted into the insertion hole 301 provided at the upper end of the next tower section 1. Only when the pin 302 is inserted into place can the next tower section 1 be pulled out from the tower body 4. This foolproof structure design reduces the operation and verification steps and improves the efficiency of field operations.

[0025] Working principle: The tower section 1 is pulled out sequentially from the tower body 4. Each time a section is pulled out, the retaining spring 203 at the bottom of the tower section 1 will push the anti-detachment pin 202 out under the action of elastic force, so that the anti-detachment pin 202 is locked at the joint of the upper and lower tower sections 1, which can completely eliminate the risk of the tower ruler accidentally retracting during high-altitude operations. When the V-shaped retaining spring 203 expands to both sides and pushes the anti-detachment pin 202 out, the connecting rod 306 hinged to the inner wall on both sides of the retaining spring 203 also pulls the trigger rod 305 down at the same time. Then, through the abutment cooperation between the stepped groove on the side of the trigger rod 305 and the plane of the tail end of the pin 302, the pin 302 extends out from the opening of the sleeve 303 and is locked into the insertion hole 301 set at the upper end of the next tower section 1. Only when the pin 302 is inserted into place can the next tower section 1 be pulled out from the tower body 4. This foolproof structure design reduces the operation and verification steps and improves the efficiency of field operations.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A tower distance measuring device for transmission lines, comprising a tower section (1) and an anti-slip assembly (2), characterized in that, The tower section (1) has an anti-slip component (2) built in. The anti-slip component (2) includes anti-detachment holes (201) symmetrically arranged on both sides of the bottom end of the tower section (1). Anti-detachment pins (202) are axially slidably installed inside the anti-detachment holes (201) on both sides, and the anti-detachment pins (202) are fixedly connected to both ends of the retaining ring (203).

2. The tower-to-line distance measuring device for transmission lines according to claim 1, characterized in that, The retaining ring (203) is made of spring steel and has a "V" shaped structure.

3. The tower distance measuring device for transmission lines according to claim 2, characterized in that, The tower section (1) has a built-in anti-foolproof component (3), which includes a socket (301) at the upper and lower ends of the tower section (1), and a pin (302) is axially slidably installed inside the socket (301).

4. The tower-to-line distance measuring device for transmission lines according to claim 3, characterized in that, The foolproof component (3) also includes a sleeve (303) sleeved outside the pin (302), and the root of the sleeve (303) is fixed to the inner wall of the tower section (1).

5. The tower-to-line distance measuring device for transmission lines according to claim 4, characterized in that, The foolproof component (3) also includes a spring (304) sleeved at the root of the pin (302), and the pin (302) is elastically connected to the inner wall of the sleeve (303) opening through the spring (304).

6. The tower-to-line distance measuring device for transmission lines according to claim 5, characterized in that, The foolproof component (3) also includes a trigger rod (305) that is radially inserted into the middle of the sleeve (303), and the stepped groove on the side of the trigger rod (305) abuts against the plane of the end of the pin (302).

7. A tower-to-line distance measuring device for transmission lines according to claim 6, characterized in that, The foolproof component (3) also includes connecting rods (306) connected to both sides of the top of the trigger rod (305), and the connecting rods (306) are hinged to the "V" shaped inner wall of the snap ring (203).

8. The tower-to-line distance measuring device for transmission lines according to claim 7, characterized in that, The tower sections (1) are stacked inside the tower body (4), and both the tower sections (1) and the tower body (4) are made of insulating rigid ABS material. The tower sections (1) and the tower body (4) are provided with scale markings (5) at equal intervals along the length direction.

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