Anti-falling power transmission line suspension clamp

Abstract

The utility model belongs to the technical field of suspension clamps, and particularly relates to an anti-falling power transmission line suspension clamp which comprises a U-shaped plate, a mounting bolt is inserted into the U-shaped plate, a supporting plate is slidably mounted on the inner side of the U-shaped plate, first fixing plates are arranged on the two sides of the supporting plate, U-shaped bolts are inserted into the first fixing plates, and the first fixing plates are connected with one end of an oil buffer. The U-shaped plate is provided with a second fixing plate, a third fixing plate and a fourth fixing plate, the third fixing plate is provided with an oil storage cylinder, the inner side of the oil storage cylinder is slidably provided with a piston, and a cavity formed between the oil storage cylinder and the piston is communicated with a cylinder body of the oil pressure buffer through an oil pipe; a sealing telescopic cylinder is arranged between the piston and the fourth fixing plate, and the sealing telescopic cylinder is filled with expansion filler. The volatilization amount of the expansion filler correspondingly changes along with temperature rising and falling, then the sealing telescopic cylinder stretches out and draws back to adjust the internal pressure of hydraulic oil in the oil storage cylinder, and the oil pressure buffer has the consistent buffering effect at different temperatures.

Description

Technical Field

[0001] The utility model belongs to the technical field of suspension wire clamps, and in particular relates to an anti-falling suspension wire clamp for power transmission lines. Background Art

[0002] The utility model patent with the authorization announcement number CN218415754U discloses a transmission line suspension wire clamp, including a support plate and a support seat fixed in the middle of the lower surface of the support plate, a U-shaped plate is arranged on the outer side of the support seat, and sliding grooves are provided on the front and rear sides of the lower surface of the U-shaped plate, and a sliding block is slidably connected to the inner wall of the sliding groove, and the upper surface of the sliding block is fixedly connected to the lower surface of the support seat. The transmission line suspension wire clamp is used in conjunction with the support plate, the support seat, the sliding block, the sliding rod and the spring, so that the device is hoisted through the support sleeve. When the steel core aluminum stranded wire is shaken by wind, the steel core aluminum stranded wire will drive the support plate and the support seat to move, and the sliding block moves relative to the U-shaped plate, so that the support plate and the U-shaped bolt fit the steel core aluminum stranded wire as much as possible, reducing the probability of the support plate rubbing the steel core aluminum stranded wire, reducing the probability of broken strands of the aluminum conductor, and ensuring the safe operation of the wire line.

[0003] The above mechanism elastically supports the sliding block relative to the U-shaped plate through the spring, and plays the role of energy absorption and limiting when the sliding block can move relative to the U-shaped plate; however, the simple use of springs cannot play an effective role in shock absorption and energy absorption, and a damper needs to be used in conjunction; however, the damping coefficient of the hydraulic oil in the commonly used oil shock absorber is closely related to the temperature; in winter, as the temperature in the outdoor environment where the transmission line is located decreases, the damping coefficient of the hydraulic oil increases, thereby causing the sliding block to reduce the buffering effect of the steel-core aluminum stranded wire. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a transmission line suspension clamp that prevents falling off, so as to solve the problem that the existing suspension clamps that can play a buffering and supporting function are affected in the buffering effect of the steel core aluminum stranded wire as the outdoor temperature changes.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: an anti-falling transmission line suspension clamp, comprising a U-shaped plate, on which mounting bolts are inserted, a support plate is slidably installed on the inner side of the U-shaped plate, a fixing plate one is provided on both sides of the support plate, a U-shaped bolt is inserted on the fixing plate one, a side surface of the fixing plate one is connected to one end of an oil pressure buffer, and the other end of the oil pressure buffer is connected to the side surface of a fixing plate two, the fixing plate two is installed on the U-shaped plate, a fixing plate three and a fixing plate four are installed on the U-shaped plate, an oil storage cylinder is installed on the fixing plate three, a piston is slidably installed on the inner side of the oil storage cylinder, a cavity formed between the oil storage cylinder and the piston is connected to the cylinder body of the oil pressure buffer through an oil pipe, a sealing telescopic cylinder is provided between the piston and the fixing plate four, and the interior of the sealing telescopic cylinder is filled with expansion filler.

[0006] The beneficial effect of the utility model is that as the ambient temperature of the suspension wire clamp changes, the volatilization amount of the expansion filler changes accordingly, thereby changing the length of the sealed telescopic tube, so that the oil pressure buffer can automatically adjust the internal pressure of the hydraulic oil in the oil storage cylinder to achieve a more consistent buffering effect on the shaking steel-core aluminum stranded wire at different temperatures.

[0007] In order to ensure the stability of the hydraulic buffer buffer support;

[0008] As a further improvement of the above technical solution: the axis of the oil pressure buffer is parallel to the axis of the support plate.

[0009] The beneficial effect of this improvement is that the oil pressure buffer can stably connect the fixed plate 1 and the fixed plate 2 under force, and provide stable support for the fixed plate 1 when the fixed plate 1 slides.

[0010] In order to make the sealing telescopic cylinder able to stably support and push the piston;

[0011] As a further improvement of the above technical solution: the top end of the sealing telescopic cylinder is welded to the bottom surface of the fixing plate 4, and the axis of the sealing telescopic cylinder is colinear with the axis of the piston.

[0012] The beneficial effect of this improvement is that the sealed telescopic cylinder installed on the lower side of the piston can stably expand and contract in the axial direction of the piston, thereby providing stable support for the piston to adjust the volume of the oil chamber between the oil storage cylinder and the piston.

[0013] In order to make the sealed telescopic cylinder expand and contract stably under the action of the expansion filler;

[0014] As a further improvement of the above technical solution: the sealed telescopic cylinder is a metal bellows structure with sealed ends.

[0015] The beneficial effect of this improvement is that the low-boiling-point medium expansion filler such as ethanol, acetone, etc. filled inside the sealed telescopic tube can increase or decrease the internal pressure accordingly when the ambient temperature changes, thereby causing the sealed telescopic tube to expand and contract.

[0016] In order to ensure the sealing of the connection between the piston and the oil storage cylinder;

[0017] As a further improvement of the above technical solution: a dynamic sealing structure which is interference fit with the inner wall of the oil storage cylinder is arranged on the curved side surface of the piston.

[0018] The beneficial effect of this improvement is that the dynamic sealing structure can play a role in sealing the connection between the piston and the oil storage cylinder, thereby preventing the hydraulic oil from leaking when the piston moves up and down to change the volume of the oil chamber.

[0019] In order to ensure the sealing of the oil chamber in the oil storage cylinder;

[0020] As a further improvement of the above technical solution: when the oil pressure buffer is extended to the end of the stroke, the bottom surface of the piston is not lower than the top of the connecting port between the oil pipe and the oil storage cylinder.

[0021] The beneficial effect of this improvement is that when the piston moves to the lowest point, the oil storage cylinder can always be effectively sealed to prevent leakage of hydraulic oil.

[0022] In order to stably connect the hydraulic buffer and the pallet;

[0023] As a further improvement of the above technical solution: the first fixing plate is an angle iron structure.

[0024] The beneficial effect of this improvement is that the fixing plate 1 can stably transmit the force to the oil pressure buffer while being connected to the supporting plate.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a cross-sectional structural diagram of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the middle support plate of the utility model;

[0029] Figure 4 It is an enlarged view of A in the utility model;

[0030] In the figure: 1. U-shaped plate; 2. Mounting bolts; 3. Support plate; 4. Fixed plate one; 5. U-shaped bolts; 6. Oil pressure buffer; 7. Fixed plate two; 8. Fixed plate three; 9. Oil storage cylinder; 10. Piston; 11. Sealing telescopic cylinder; 12. Fixed plate four; 13. Oil pipe; 14. Expansion filler. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1—4 shows: an anti-falling transmission line suspension clamp, comprising a U-shaped plate 1, on which mounting bolts 2 are inserted, a support plate 3 is slidably installed on the inner side of the U-shaped plate 1, fixed plates 1 4 are arranged on both sides of the support plate 3, U-shaped bolts 5 are inserted on the fixed plate 1 4, the side of the fixed plate 1 4 is connected to one end of an oil pressure buffer 6, and the other end of the oil pressure buffer 6 is connected to the side of a fixed plate 2 7, the fixed plate 2 7 is installed on the U-shaped plate 1, a fixed plate 3 8 and a fixed plate 4 12 are installed on the U-shaped plate 1, an oil storage cylinder 9 is installed on the fixed plate 3 8, a piston 10 is slidably installed on the inner side of the oil storage cylinder 9, and the oil storage cylinder 9 and the piston 10 are connected. The cavity formed between the two is connected to the cylinder of the oil pressure buffer 6 through the oil pipe 13. A sealed telescopic cylinder 11 is arranged between the piston 10 and the fixed plate 4 12. The inside of the sealed telescopic cylinder 11 is filled with an expansion filler 14. As the ambient temperature of the suspension wire clamp changes, the volatilization amount of the expansion filler 14 changes accordingly, thereby changing the length of the sealed telescopic cylinder 11. By automatically adjusting the internal pressure of the hydraulic oil in the oil storage cylinder 9, the oil pressure buffer 6 can have a more consistent buffering effect on the shaking steel-core aluminum stranded wire at different temperatures. The axis of the oil pressure buffer 6 is parallel to the axis of the support plate 3, and the oil pressure buffer 6 can stably connect the fixed plate 4 and the fixed plate 2 under force. 7, when the fixed plate 4 slides, the top of the sealing telescopic cylinder 11 is welded to the bottom surface of the fixed plate 4 12, and the axis of the sealing telescopic cylinder 11 is in line with the axis of the piston 10. The sealing telescopic cylinder 11 installed on the lower side of the piston 10 can stably expand and contract in the axial direction of the piston 10, thereby providing stable support for the piston 10 to adjust the volume of the oil chamber between the oil storage cylinder 9 and the piston 10. The sealing telescopic cylinder 11 is a metal bellows structure sealed at both ends. The low-boiling-point medium expansion filler 14 such as ethanol, acetone, etc. filled in the sealing telescopic cylinder 11 can increase or decrease the internal pressure accordingly when the ambient temperature changes, so that the sealing The telescopic cylinder 11 is extended and retracted, and a dynamic sealing structure that is an interference fit with the inner wall of the oil storage cylinder 9 is provided on the curved side surface of the piston 10. The dynamic sealing structure can seal the connection between the piston 10 and the oil storage cylinder 9, and prevent the hydraulic oil from leaking in the process of the piston 10 moving up and down to change the volume of the oil chamber. When the oil pressure buffer 6 is extended to the end of the stroke, the bottom surface of the piston 10 is not lower than the top of the connecting port between the oil pipe 13 and the oil storage cylinder 9. When the piston 10 moves to the lowest point, it can always maintain an effective seal on the oil storage cylinder 9 to prevent the hydraulic oil from leaking. The fixed plate 4 is an angle iron structure, and the fixed plate 4 can stably transmit the force to the oil pressure buffer 6 while connecting the support plate 3.

[0034] The working principle of the present technical solution is as follows: when in use, remove the mounting bolts 2 and the U-bolts 5, put the support plate 3 on the outside of the steel core aluminum stranded wire, re-install the U-bolts 5 and tighten them with nuts, re-install the mounting bolts 2 and tighten them with nuts, thereby completing the installation of the device; the steel cable hoists the steel core aluminum stranded wire through the support plate 3, and when the steel core aluminum stranded wire shakes due to wind force, the steel core aluminum stranded wire will drive the U-bolts 5 to move, and when the U-bolts 5 move, they will drive the fixing plate 4 to squeeze the oil pressure buffer 6, and the oil pressure buffer 6 plays the role of energy absorption and buffering; when the piston rod of the oil pressure buffer 6 contracts, the hydraulic oil in the cylinder of the oil pressure buffer 6 passes through the oil pressure buffer 6. The tube 13 enters the interior of the oil storage cylinder 9; when the external ambient temperature is high, such as in summer, the volatilization amount of the expansion filler 14 is large, the internal pressure of the sealing telescopic cylinder 11 increases, and then it stretches and deforms, pushing the piston 10 downward, so that the cavity space for storing hydraulic oil in the oil storage cylinder 9 becomes smaller, and the internal pressure of the hydraulic oil increases, thereby increasing the resistance to the flow of hydraulic oil; when the external ambient temperature is low, such as in winter, the volatilization amount of the expansion filler 14 is small, the internal pressure of the sealing telescopic cylinder 11 decreases, and then it shrinks and deforms, and the piston 10 moves upward under the push of the internal pressure of the hydraulic oil below, so that the cavity space for storing hydraulic oil in the oil storage cylinder 9 becomes larger, thereby reducing the resistance to the flow of hydraulic oil.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. An anti-falling transmission line suspension clamp, characterized by: The invention comprises a U-shaped plate (1), a mounting bolt (2) is inserted on the U-shaped plate (1), a support plate (3) is slidably installed on the inner side of the U-shaped plate (1), a fixing plate (4) is arranged on both sides of the support plate (3), a U-shaped bolt (5) is inserted on the fixing plate (4), a side surface of the fixing plate (4) is connected to one end of an oil pressure buffer (6), and the other end of the oil pressure buffer (6) is connected to the side surface of a fixing plate (7), and the fixing plate (7) is installed on the U-shaped plate (1). A fixing plate three (8) and a fixing plate four (12) are mounted on the plate (1), an oil storage cylinder (9) is mounted on the fixing plate three (8), a piston (10) is slidably mounted inside the oil storage cylinder (9), a cavity formed between the oil storage cylinder (9) and the piston (10) is connected to the cylinder body of the oil pressure buffer (6) through an oil pipe (13), a sealing telescopic cylinder (11) is arranged between the piston (10) and the fixing plate four (12), and the interior of the sealing telescopic cylinder (11) is filled with an expansion filler (14).

2. The anti-falling transmission line suspension clamp according to claim 1 is characterized in that: The axis of the oil pressure buffer (6) is parallel to the axis of the support plate (3).

3. The anti-falling transmission line suspension clamp according to claim 1 is characterized in that: The top end of the sealing telescopic cylinder (11) is welded to the bottom surface of the fixing plate 4 (12), and the axis of the sealing telescopic cylinder (11) is colinear with the axis of the piston (10).

4. The anti-falling transmission line suspension clamp according to claim 1 is characterized in that: The sealed telescopic cylinder (11) is a metal bellows structure with sealed ends.

5. The anti-falling transmission line suspension clamp according to claim 1 is characterized in that: A dynamic sealing structure is provided on the curved side surface of the piston (10) and is interference-fitted with the inner wall of the oil storage cylinder (9).

6. The anti-falling transmission line suspension clamp according to claim 1 is characterized by: When the oil pressure buffer (6) is extended to the end of the stroke, the bottom surface of the piston (10) is not lower than the top of the connecting port between the oil pipe (13) and the oil storage cylinder (9).

7. The anti-falling transmission line suspension clamp according to claim 1 is characterized by: The fixing plate 1 (4) is an angle iron structure.

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