Power cross arm for high and low voltage lines

Abstract

The power cross arm comprises a cross arm body and arc-shaped clamping plates, bearing grooves are formed in the front end and the rear end of the outer side of the cross arm body, an additionally-arranged transverse frame is arranged in the middle of the top end of the cross arm body, a positive electrode opening is formed in the front face of the additionally-arranged transverse frame, and a negative electrode opening is formed in the back face of the additionally-arranged transverse frame. Side-stage top openings are formed in the two sides of the top end of the additionally-arranged transverse frame, a middle-stage opening is formed in the middle of the top end of the additionally-arranged transverse frame, attaching blocks are fixedly arranged in the middles of the front end and the rear end of the additionally-arranged transverse frame, and an auxiliary adjusting structure is arranged in the middle of the inner side of the additionally-arranged transverse frame. According to the utility model, higher safety, adaptability and operation convenience are provided, the stability and the construction efficiency of an electric power circuit are improved, and a safer operation environment is provided for electric power workers, so that potential construction risks are reduced, and the wide application prospect in construction and maintenance of electric power facilities is shown.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a high and low voltage line electric power cross arm. Background Art

[0002] Low-voltage power line crossarms are structural components used to support and secure conductors, cables, and other equipment in low-voltage power lines. They are typically installed on power poles or towers, supporting and increasing the spacing between conductors to ensure safe operation. Crossarms' primary functions include supporting conductors, preventing them from sagging or swaying due to their own weight or other external forces, ensuring line stability; securing insulators, lightning arresters, and other power equipment, ensuring their safe and stable operation; and separating conductors to prevent short circuits and interference between them, improving line safety and reliability. Their design and installation also facilitate inspection, maintenance, and repair of power lines. Low-voltage power line crossarms come in a variety of types, including angle steel, channel steel, steel pipe, and composite materials. Each type is suitable for specific environments and conditions. When installing crossarms, care must be taken to ensure they are properly positioned on the pole, that conductor spacing meets safety standards, and that they are securely connected to the pole or other supporting structure to prevent loosening due to vibration or other external forces. Furthermore, metal crossarms should be treated with corrosion protection to extend their service life. Crossarms and their connections should be regularly inspected to ensure they are in good condition, and damaged parts should be replaced promptly. The correct selection and installation of low-voltage power crossarms is crucial to the safe and stable operation of power lines. Therefore, the design, installation, and maintenance processes should be carried out in strict accordance with relevant standards and specifications.

[0003] The patent publication number "CN112922436A" discloses a high- and low-voltage line power crossarm, including a power pole, an upper carrier, a lower carrier, a fixing device, a connecting device and a side carrier. The lower end of the power pole is connected to the existing ground, and the upper carrier is symmetrically arranged on the front and rear sides of the upper end of the power pole. The lower carrier is arranged directly below the upper carrier, and a fixing device is installed between the upper carrier and the lower carrier. Both ends of the upper carrier and the two ends of the lower carrier are provided with connecting devices, and side carriers are symmetrically connected front and back between the upper and lower connecting devices. The present invention can lock the clamp to the upper end of the power pole by tightening bolts, and then manually clamp the upper carrier and the lower carrier to the clamping rod respectively, which can realize the function of quickly fixing the upper carrier and the lower carrier, so as to improve the efficiency of workers in installing power crossarms, reduce the time workers spend working at heights, and improve safety.

[0004] The above technical solution utilizes the upper carrier and the lower carrier to assemble into a whole cross-arm structure, and the connecting rod can be connected to the upper carrier and the lower carrier respectively, so as to strengthen the bond between the cross-arm and the workers. Then, from a macro perspective, the above technology only adds a single structure in the horizontal and vertical directions of the cross-arm, and does not provide a quick support solution for the workers' actual construction. Based on this, this application proposes a high and low voltage line power cross-arm. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a high and low voltage line power cross arm.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A high- and low-voltage power line crossarm comprises a crossarm body and an arc-shaped clamping plate, wherein receiving grooves are provided at the front and rear ends of the outer side of the crossarm body, an additional cross frame is provided in the middle of the top of the crossarm body, a positive-stage opening is provided on the front of the additional cross frame, side-stage top openings are provided on both sides of the top of the additional cross frame, an intermediate-stage opening is provided in the middle of the top of the additional cross frame, an attachment block is fixedly provided in the middle of the front and rear ends of the additional cross frame, and an auxiliary adjustment structure is provided in the middle of the inner side of the additional cross frame;

[0008] Screws are vertically arranged on both sides of the arc-shaped clamping plate, a top block is arranged on the top of the screw, and an anti-slip structure is sleeved on the outer side of the top of the top block;

[0009] Preferably, the length of the attachment block cannot exceed the opening length of the intermediate stage port, so as to prevent the attachment block from being too long and affecting the use of other components;

[0010] Preferably, the auxiliary adjustment structure includes a matching block, a vertical stop block, a curved tilting rod and a rotating shaft. The back of the matching block is rotatably provided with a rotating shaft, the outer side of the rotating shaft is provided with a curved tilting rod, matching blocks are provided on both sides of the curved tilting rod, and a vertical stop block is provided at the top of the curved tilting rod. The vertical stop block has a semi-hook shape in appearance, which is convenient for installation and use of the vertical stop block.

[0011] Preferably, a rotating structure is formed between the rotating shaft and the curved tilting rod, and the volume of the engaging block is smaller than the volume of the middle stage port, so that the engaging block can be smoothly ejected from the inner side of the middle stage port after the curved tilting rod rotates.

[0012] Preferably, the anti-slip structure includes a wedge-shaped block, a built-in round cap and an inner groove. The outer side of the top block is provided with a built-in round cap, and the outer side of the built-in round cap is provided with a wedge-shaped block. An inner groove is opened in the middle of the inner side of the wedge-shaped block. The shape of the inner side of the inner groove is narrow at the top and wide at the bottom, which facilitates the screw to fully enter the inner side of the wedge-shaped block, thereby affecting normal work.

[0013] Preferably, the built-in round cap and the top block are plug-in connected, and the diameter of the screw is slightly smaller than the middle value of the inner diameter limit of the inner groove, so that the screw will not immediately fall out after entering the inner side of the wedge block.

[0014] The utility model has the following beneficial effects:

[0015] 1. The present invention sets an additional horizontal frame in the middle of the top of the cross arm body. When the cross arm body is to be clamped and installed with an external pole, the cross arm body needs to remain stable. At this time, the additional horizontal frame on the top of the cross arm body will first contact the outside of the external pole. At this time, the vertical block extending from the top of the additional horizontal frame is forced to be recovered, and the vertical block squeezes the curved tilting rod inside the additional horizontal frame. Because the vertical block is concentratedly pressurized to a part of the top of the curved tilting rod, the curved tilting rod is forced to tilt to both sides. At the same time, the auxiliary block inside the additional horizontal frame is turned to set a rotating shaft. , so that the rotating shaft helps the curved tilting rod to rotate, and the curved tilting rod is tilted up and abuts the bottom end of the fitting block, so that the fitting block extends outward from the side top and abuts the outside of the external pole. The fitting block helps the cross-arm body to be stabilized on the outside of the external pole. Workers do not need to worry about the cross-arm body falling off when attached to the outside of the pole, and it can also ensure that the back and forth movement of the fitting block can adapt to poles of different diameters, solving the problem that workers cannot quickly build the cross-arm body. The auxiliary adjustment structure helps to position and install the cross-arm body, reducing some time.

[0016] 2. When workers need to assemble the arc-shaped pallet and the crossarm body, the screw is prone to shaking or detaching due to improper operation. At this time, a top block is welded to the top of the screw, and a wedge block is sleeved on the outside of the top of the screw. The inner groove opened on the inner side of the wedge block can accommodate the top block and part of the upper end of the screw. Since the upper and lower diameters of the inner groove are different, and the diameter of the upper end of the inner groove is smaller than the diameter of the lower end of the inner groove, the upper end of the screw will stop extending when it extends to the limit length inside the wedge block, and the built-in round cap is stuck on the outside of the top block to control part of the activity trajectory of the screw and the top block. When workers rotate the screw, they do not worry about the screw shaking and detaching from the outside of the arc-shaped pallet, which reduces the chance of mistakes when workers use the arc-shaped pallet.

[0017] 3. The present invention utilizes the above two technologies to improve the stability of the connection between the crossarm body and the external pole, and the firmness of the connection between the screw and the curved clip. The adjustable angle design of the curved tilting rod and the matching block can adapt to poles of different shapes, which enhances the versatility of the crossarm body and enables it to be stably installed on different types of poles, bringing convenience to on-site construction. Secondly, the application of the auxiliary adjustment structure makes the crossarm body more stable during installation, reduces safety hazards under external forces such as wind and vibration, and ensures the safe operation of the line. In addition, the top block set on the screw is matched with the wedge block and the built-in round cap to limit the range of movement of the screw, reducing the risk of the screw being detached due to improper operation or external forces, thereby improving construction safety. In terms of operational convenience, workers do not have to spend too much time on complex adjustments when hanging the crossarm body. The addition of a horizontal frame can quickly align the pole, and the installation can be quickly completed by operating the vertical block. The entire process is more intuitive and reduces the labor intensity of workers. Furthermore, the screw rods are easily connected to the crossarm, making installation and commissioning easier for workers and improving work efficiency. Furthermore, the interlocking design of the engagement block and the tilting rod ensures that when pressure is applied, the engagement block effectively supports the pole, providing stable support and enhancing the structural stability of the crossarm itself. Finally, the adaptable design of the engagement block makes it suitable for a variety of pole types, particularly suitable for diverse power transmission needs, and enhances the market adaptability of the crossarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 This is a side view of the structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the front view of the cross-arm body of the utility model;

[0022] Figure 5 This is a schematic diagram of the left side structure of the cross arm body section of the present invention;

[0023] Figure 6 This is a schematic structural diagram of the right side view of the cross-arm body of the utility model;

[0024] Figure 7 This is a schematic diagram of the front view structure of the arc-shaped pallet assembly of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the arc-shaped pallet assembly of the utility model when viewed from above;

[0026] Figure 9 This is a schematic front view of the sectional view of the anti-slip structure of the utility model;

[0027] Figure 10 It is a schematic cross-sectional side view of the anti-slip structure of the utility model.

[0028] In the figure: 1. Cross arm body; 2. Additional cross frame; 3. Auxiliary adjustment structure; 31. Fitting block; 32. Vertical support block; 33. Curved tilting rod; 34. Rotating shaft; 4. Intermediate stage opening; 5. Main stage opening; 6. Side stage top opening; 7. Receiving groove; 8. Top block; 9. Arc-shaped clamping plate; 10. Screw; 11. Attachment block; 12. Anti-slip structure; 121. Wedge block; 122. Built-in round cap; 123. Inner groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-10 A high- and low-voltage power line crossarm includes a crossarm body 1 and an arc-shaped clamping plate 9. The front and rear ends of the outer side of the crossarm body 1 are provided with receiving grooves 7. An additional cross frame 2 is provided in the middle of the top of the crossarm body 1. The front of the additional cross frame 2 is provided with a positive level opening 5. Side level top openings 6 are provided on both sides of the top of the additional cross frame 2. An intermediate level opening 4 is provided in the middle of the top of the additional cross frame 2. An attachment block 11 is fixedly provided in the middle of the front and rear ends of the additional cross frame 2. An auxiliary adjustment structure 3 is provided in the middle of the inner side of the additional cross frame 2.

[0031] Screws 10 are vertically arranged on both sides of the arc-shaped clamping plate 9, and a top block 8 is arranged on the top of the screw 10. The outer side of the top of the top block 8 is sleeved with an anti-slip structure 12.

[0032] In addition, since the rotating shaft 34 can rotate in coordination with the curved tilt rod 33, and the top end of the curved tilt rod 33 is tilted after being pressed downward by the vertical stop block 32, the user can change the angle of the inner side of the curved tilt rod 33. A smaller angle will cause the movement range of the curved tilt rod 33 to become larger, thereby causing part of the structure of the fitting block 31 to leak out of the outside of the side-level top opening 6, while a larger angle will cause the movement range of the curved tilt rod 33 to be reduced when it is lifted, thereby causing part of the structure of the fitting block 31 to not extend from the inner side of the side-level top opening 6 on time. The user can also change the outer shape of the fitting block 31, for example, the part of the fitting block 31 that contacts the external pole is arc-shaped or semicircular, etc., so that the cross-arm body 1 product itself can be used on different types of poles.

[0033] In addition, since the top block 8 is stuck in the built-in round cap 122 set on the inner side of the wedge block 121, the top block 8 will limit the range of movement of the screw 10. At the same time, the structure of the inner groove 123 that is narrow at the top and wide at the bottom can prevent the screw 10 from suddenly detaching. The user can adjust the diameter of the lower end of the inner groove 123 or the diameter of the upper end of the inner groove 123 to adapt to screws 10 of different sizes. The length of the upper end of the screw 10 staying inside the wedge block 121 can be determined by the welding position of the built-in round cap 122, so as to control the degree and time of detachment of the screw 10.

[0034] The above innovative design of the high and low voltage line power crossarm provides higher safety, adaptability and operational convenience, which not only improves the stability and construction efficiency of the power line, but also provides a safer working environment for power workers, thereby reducing potential construction risks, showing its broad application prospects in the construction and maintenance of power facilities.

[0035] When using this device, workers first climb to the designated position of the external pole, and then use the safety rope to lift the cross arm body 1 and the arc-shaped clamping plate 9 and other components to the designated position. When the cross arm body 1 moves to the designated position, the worker aligns the additional cross frame 2 at the top of the cross arm body 1 with the outside of the pole, and the vertical stop block 32 extending from the inner side of the middle level mouth 4 at the top of the additional cross frame 2 presses against the outside of the pole. At this time, the vertical stop block 32 is forced to retract, and the vertical stop block 32 squeezes the curved tilting rod 33. After the curved tilting rod 33 is subjected to the pressure of the vertical stop block 32, it cooperates with the rotating shaft 34 set inside the attachment block 11 to tilt and rotate. After the two ends of the curved tilting rod 33 are tilted, they press against the detent The fitting block 31 is subjected to force to extend from the inside of the side-stage top opening 6 to the outside, and the fitting block 31 extends outward and presses against the outside of the pole. At this time, the cross-arm body 1 will cooperate with the auxiliary adjustment structure 3 to stabilize the overall structure on the outside of the pole. The worker then removes the arc-shaped clamping plate 9 and the screw 10. The top block 8 is welded to the top of the screw 10. The top block 8 is stuck into the built-in round cap 122 on the inside of the wedge-shaped block 121, and the inner groove 123 limits the range of movement of the upper end of the screw 10 in the wedge-shaped block 121. At this time, the worker only needs to carefully connect one end of the screw 10 to the cross-arm body 1, and there is no need to worry about the screw 10 being detached due to other reasons.

[0036] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A high and low voltage line power cross arm, characterized in that: It comprises a cross arm body (1) and an arc-shaped clamping plate (9), the front and rear ends of the outer side of the cross arm body (1) are provided with receiving grooves (7), the middle of the top of the cross arm body (1) is provided with an additional cross frame (2), the front of the additional cross frame (2) is provided with a positive level opening (5), the two sides of the top of the additional cross frame (2) are provided with side level top openings (6), the middle of the top of the additional cross frame (2) is provided with an intermediate level opening (4), the middle of the front and rear ends of the additional cross frame (2) are fixedly provided with an auxiliary block (11), and the middle of the inner side of the additional cross frame (2) is provided with an auxiliary adjustment structure (3); Screw rods (10) are vertically arranged on both sides of the arc-shaped clamping plate (9), a top block (8) is arranged at the top end of the screw rod (10), and an anti-slip structure (12) is sleeved on the outer side of the top end of the top block (8).

2. A high and low voltage line power cross arm according to claim 1, characterized in that: The length of the attachment block (11) cannot exceed the opening length of the intermediate stage port (4).

3. The high and low voltage line power cross arm according to claim 1, characterized in that: The auxiliary adjustment structure (3) comprises a matching block (31), a vertical stop block (32), a curved tilting rod (33) and a rotating shaft (34); the rotating shaft (34) is rotatably provided on the back of the matching block (11); the curved tilting rod (33) is provided on the outer side of the rotating shaft (34); matching blocks (31) are provided on both sides of the curved tilting rod (33); the top of the curved tilting rod (33) is provided with a vertical stop block (32); and the vertical stop block (32) has a semi-hook shape in appearance.

4. A high and low voltage line power cross arm according to claim 3, characterized in that: A rotating structure is formed between the rotating shaft (34) and the curved tilting rod (33), and the volume of the engaging block (31) is smaller than the volume of the intermediate stage port (4).

5. The high and low voltage line power cross arm according to claim 1, characterized in that: The anti-slip structure (12) comprises a wedge-shaped block (121), a built-in round cap (122) and an inner groove (123); the outer side of the top block (8) is sleeved with the built-in round cap (122); the outer side of the built-in round cap (122) is provided with a wedge-shaped block (121); the middle of the inner side of the wedge-shaped block (121) is provided with an inner groove (123); the inner side of the inner groove (123) is narrow at the top and wide at the bottom.

6. A high and low voltage line power cross arm according to claim 5, characterized in that: The built-in round cap (122) and the top block (8) are plug-in connected, and the diameter of the screw (10) is slightly smaller than the middle value of the inner diameter limit of the inner groove (123).

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