Cross arm for power transmission line

Abstract

The utility model relates to the technical field of cross arms, and discloses a cross arm for a power transmission line, which comprises a hoop, stringing mechanisms arranged on the left side and the right side of the hoop, a mounting mechanism arranged in the hoop, each stringing mechanism comprises a supporting assembly and a stringing assembly, the supporting assemblies are arranged on the left side and the right side of the hoop, and the stringing assemblies are arranged on the inner sides of the supporting assemblies. According to the cross arm for the power transmission line, through the arrangement of the mounting mechanism, a worker only needs to rotate twisting discs at four corners to drive clamping plates at the four corners to move inwards to clamp a telegraph pole connected to the inner ring of a hoop in a sleeving mode, and the worker only needs to form corresponding clamping grooves in the positions, corresponding to the clamping plates, of the mounting position of the telegraph pole; when the cross arm is installed, the clamping plates can be inwards clamped in the grooves to complete installation of the cross arm, so that the cross arm can be installed on wire rods with different diameters, the application range of the cross arm is enlarged, and in the power construction process, workers do not need to adapt to different cross arms for telegraph poles with different diameters along a road.

Description

Technical Field

[0001] The utility model relates to the technical field of cross arms, in particular to a cross arm used for a power transmission line. Background Art

[0002] The cross arm is an angle iron fixed horizontally on the top of the pole, mainly used to support and overhead wires. The cross arm is an important part of the pole tower. Its function is to install insulators and hardware to support the conductors and lightning conductors, and keep them at a certain safe distance as required.

[0003] According to the patent website published "Adjustable Insulating Cross Arm (Announcement No.: CN 217783072 U; application number: 202220900618.3)", in the above application, the problem of "the length of the insulating cross arm used to lift the conductor is fixed, and the insulating cross arm and the conductor spacing do not match. During on-site operations, the conductor power outage has to be adopted, resulting in failure of live operations; secondly, the top of the insulating arm of the bucket truck is in the same position as the insulating bucket. When the operator raises the insulating arm to lift the conductor, it is difficult for the insulating bucket to reach the ideal working position, which seriously affects the working efficiency and safety". The construction of power engineering is very dangerous, so a lot of advance preparation work is required. Problems that may be encountered during the construction process need to be avoided in advance to protect the safety of construction workers. The phenomenon of "cross arm and conductor spacing do not match" mentioned in the above application has a small probability of occurrence. At the same time, the cross arm in the above application is the same as the existing commonly used cross arm during installation. Due to the fixed diameter of the clamp, it can only be installed for electric poles of fixed size, and cannot be adapted to electric poles of different diameters. The applicability is low, so that during the power construction process, the construction team needs to carry and install the adapted cross arm according to the electric poles of different diameters along the road, which is inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a cross arm for a power transmission line to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a cross arm for a power transmission line, comprising a hoop, a wire stringing mechanism is arranged on the left and right sides of the hoop, and a mounting mechanism is arranged inside the hoop.

[0006] The wire-string mechanism comprises a support assembly and a wire-string assembly. The support assembly is arranged on the left and right sides of the ferrule, and the wire-string assembly is arranged on the inner side of the support assembly.

[0007] The mounting mechanism comprises an adjusting component and a clamping component. The adjusting component is arranged inside the outer side of the hoop, and the clamping component is arranged inside the adjusting component.

[0008] Preferably, the support assembly includes a protrusion, the protrusion is fixedly connected to the left and right sides of the hoop, and a reinforcement frame is fixedly connected inside the protrusion.

[0009] Preferably, the wiring assembly includes a convex plate, which is fixedly connected to a position between upper and lower convex frames on the left and right sides of the hoop, a cable sleeve is fixedly connected inside the convex plate, and connecting rods are fixedly connected to the upper and lower sides of the cable sleeve, and the connecting rods are fixedly connected to the inner side of the convex frame.

[0010] Preferably, the volume of the portion where the protrusion is connected to the hoop gradually decreases outward, the distance between the front and rear of the protrusion gradually decreases from inside to outside following the shape of the protrusion, and the length of the cable sleeve gradually decreases from inside to outside following the protrusion.

[0011] Preferably, the regulating component includes an empty groove, which is opened on the front and rear sides of the protrusion, and a fixed screw barrel is fixedly connected to the inner side of the empty groove, and a threaded rod is threadedly connected to the inner circle of the fixed screw barrel, and the threaded rod is sleeved in the outer circle of the hoop, and a torsion disk is fixedly connected to the outer side of the threaded rod.

[0012] Preferably, the clamping assembly includes a clamping plate, which is rotatably connected to the inner side of the threaded rod, and a groove is provided on the inner ring of the hoop corresponding to the position of the clamping plate. The outer side of the clamping plate is fixedly connected to a limiting slide rod at the upper and lower sides of the threaded rod, and the limiting slide rod is slidably connected to the outer ring of the hoop. A connecting strip is fixedly connected to the outer side of the limiting slide rod.

[0013] Compared with the prior art, the utility model provides a cross arm for a power transmission line, which has the following beneficial effects:

[0014] 1. The cross arm for the power transmission line has a wire-hanging mechanism, and the volume of the protrusion gradually decreases in the process of extending outward. At the same time, the protruding plate and the cable sleeve also gradually decrease with the volume change of the protrusion, so that the weight of the outer side of the overall structure of the wire-hanging mechanism is much smaller than that of the inner side, which reduces the stress applied to the connection between the protrusion and the hoop, and increases the connection strength between the overall structure of the protrusion and the hoop. At the same time, the reinforcement frame is arranged on the upper and lower sides of the protrusion to reinforce the protrusion, and the protruding plate cooperates with the cable sleeve and the connecting frame rod to support the upper and lower sides of the protrusion, which further increases the stability of the overall structure of the protrusion and improves the structure and force strength of the protrusion.

[0015] 2. The crossarm used for the power transmission line, through the installation mechanism provided, the staff only needs to rotate the torsion disks at the four corners to drive the clamps at the four corners to move inward to complete the clamping of the electric pole sleeved on the inner ring of the hoop. The staff only needs to open corresponding card slots at the installation position corresponding to the clamp position on the wire trunk, and the clamps can be moved inward by clamping in the slots to complete the installation of the crossarm, so that the crossarm can be installed on wire trunks of different diameters, which increases the application scope of the crossarm. During the power construction process, the staff does not need to adapt different crossarms to the electric poles of different diameters along the road, which is convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 It is a front schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the partial structure of the wire-string mechanism;

[0019] Figure 3 It is a partial structural schematic diagram of the utility model;

[0020] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 5 It is a schematic diagram of the partial structure of the installation mechanism.

[0022] In the figure: 1. wiring mechanism; 11. supporting assembly; 1101. convex frame; 1102. reinforcement frame; 12. wiring assembly; 1201. convex plate; 1202. cable sleeve; 1203. connecting rod; 2. installation mechanism; 21. regulating assembly; 2101. empty slot; 2102. fixing screw barrel; 2103. threaded rod; 2104. torsion plate; 22. clamping assembly; 2201. clamping plate; 2202. limiting slide rod; 2203. connecting strip; 3. ferrule. DETAILED DESCRIPTION

[0023] 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.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides a technical solution:

[0026] Embodiment 1

[0027] Combination Figures 1 to 4 A cross arm for a power transmission line comprises a hoop 3, a wire stringing mechanism 1 is arranged on the left and right sides of the hoop 3, and a mounting mechanism 2 is arranged inside the hoop 3.

[0028] The wire-string mechanism 1 comprises a support assembly 11 and a wire-string assembly 12 . The support assembly 11 is arranged on the left and right sides of the ferrule 3 , and the wire-string assembly 12 is arranged on the inner side of the support assembly 11 .

[0029] The support assembly 11 includes a protrusion 1101, which is fixedly connected to the left and right sides of the hoop 3, and a reinforcement frame 1102 is fixedly connected inside the protrusion 1101. The wiring assembly 12 includes a protrusion plate 1201, which is fixedly connected to the left and right sides of the hoop 3 between the upper and lower protrusions 1101, and a cable sleeve 1202 is fixedly connected inside the protrusion plate 1201. The cable sleeve 1202 is fixedly connected to a connecting frame rod 1203 on the upper and lower sides, and the connecting frame rod 1203 is fixedly connected to the inner side of the protrusion 1101. The volume of the part where the protrusion 1101 is connected to the hoop 3 gradually decreases outward, and the distance between the front and rear of the protrusion plate 1201 gradually decreases from the inside to the outside following the shape of the protrusion 1101, and the length of the cable sleeve 1202 gradually decreases from the inside to the outside following the protrusion plate 1201.

[0030] Furthermore: the volume of the protrusion 1101 gradually decreases during the outward extension process, and at the same time, the protrusion plate 1201 and the cable sleeve 1202 also gradually decrease with the volume change of the protrusion 1101, so that the weight of the outer side of the overall structure of the wiring mechanism 1 is much smaller than the inner side, reducing the stress applied to the connection between the protrusion 1101 and the hoop 3, and increasing the connection strength between the overall structure of the protrusion 1101 and the hoop 3. At the same time, the reinforcement frame 1102 is arranged on the upper and lower sides of the protrusion 1101 to reinforce the protrusion 1101, and the protrusion plate 1201 cooperates with the cable sleeve 1202 and the connecting frame rod 1203 to support the upper and lower sides of the protrusion 1101, further increasing the stability of the overall structure of the protrusion 1101, and improving the structure and force strength of the protrusion 1101.

[0031] Embodiment 2

[0032] See also Figure 1 and Figures 3 to 5 On the basis of the first embodiment, it is further obtained that the mounting mechanism 2 includes a regulating component 21 and a clamping component 22 , the regulating component 21 is arranged inside the outer side of the hoop 3 , and the clamping component 22 is arranged inside the regulating component 21 .

[0033] The regulating component 21 includes an empty slot 2101, which is opened in the front and rear sides of the protrusion 1101. A fixed screw barrel 2102 is fixedly connected to the inner side of the empty slot 2101. The inner ring of the fixed screw barrel 2102 is threadedly connected to a threaded rod 2103. The threaded rod 2103 is sleeved in the outer ring of the hoop 3. A torsion disk 2104 is fixedly connected to the outer side of the threaded rod 2103. The clamping component 22 includes a splint 2201, which is rotatably connected to the inner side of the threaded rod 2103. A groove is opened in the inner ring of the hoop 3 corresponding to the position of the splint 2201. The outer side of the splint 2201 is fixedly connected to a limiting slide bar 2202 at the upper and lower sides of the threaded rod 2103. The limiting slide bar 2202 is slidably connected to the outer ring of the hoop 3, and a connecting strip 2203 is fixedly connected to the outer side of the limiting slide bar 2202.

[0034] Furthermore: the staff only needs to rotate the twist disks 2104 at the four corners to drive the clamps 2201 at the four corners to move inward to complete the clamping of the electric pole connected to the inner circle of the hoop 3. The staff only needs to open a corresponding slot at the installation position of the clamp 2201 on the wire trunk, and the clamp 2201 can be moved inward by clamping in the slot to complete the installation of the crossarm, so that the crossarm can be installed on wire trunks of different diameters, which increases the application range of the crossarm. During the power construction process, the staff does not need to adapt different crossarms to the wire poles of different diameters along the road, which is convenient for the staff to use.

[0035] In actual operation, when this device is used, when the hoop 3 needs to be installed, the staff first opens a slot corresponding to the clamp 2201 at the top position of the pole, and then the staff puts the hoop 3 on the top position of the pole to align the clamps 2201 at the four corners with the opened slots one by one. Then the staff rotates the torsion plates 2104 at the four corners in turn. The rotation of the torsion plates 2104 drives the threaded rod 2103 to rotate. The threaded rod 2103 rotates and moves inward on the inner circle of the fixed screw barrel 2102. The inward movement of the threaded rod 2103 drives the clamp 2201 to move inward. The clamp 2201 moves inward and is clamped in the slot opened in the outer circle of the top end of the pole, until the clamps 2201 at the four corners are all clamped in the slots and the pole is located at the center of the inner circle of the hoop 3. At this time, the installation of the crossarm is completed.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A cross arm for a power transmission line, comprising a hoop (3), characterized in that: The hoop (3) is provided with a wire racking mechanism (1) on the left and right sides thereof, and the hoop (3) is provided with a mounting mechanism (2); The wire-string mechanism (1) comprises a support assembly (11) and a wire-string assembly (12), wherein the support assembly (11) is arranged on the left and right sides of the hoop (3), and the wire-string assembly (12) is arranged on the inner side of the support assembly (11); The mounting mechanism (2) comprises an adjusting component (21) and a clamping component (22); the adjusting component (21) is arranged inside the outer side of the hoop (3), and the clamping component (22) is arranged inside the adjusting component (21).

2. A cross arm for a power transmission line according to claim 1, characterized in that: The support assembly (11) comprises a protrusion (1101), wherein the protrusion (1101) is fixedly connected to the left and right sides of the hoop (3), and a reinforcement frame (1102) is fixedly connected inside the protrusion (1101).

3. A cross arm for a power transmission line according to claim 1, characterized in that: The cable stringing assembly (12) comprises a convex plate (1201), the convex plate (1201) being fixedly connected to a position between an upper and lower convex frame (1101) on the left and right sides of the hoop (3), a cable sleeve (1202) being fixedly connected inside the convex plate (1201), a connecting frame rod (1203) being fixedly connected to the upper and lower sides of the cable sleeve (1202), and the connecting frame rod (1203) being fixedly connected to the inner side of the convex frame (1101).

4. A cross arm for a power transmission line according to claim 3, characterized in that: The volume of the portion where the protrusion (1101) is connected to the hoop (3) gradually decreases outwards, the distance between the front and rear of the protrusion (1201) gradually decreases from inside to outside following the shape of the protrusion (1101), and the length of the cable sleeve (1202) gradually decreases from inside to outside following the protrusion (1201).

5. A cross arm for a power transmission line according to claim 1, characterized in that: The regulating component (21) comprises a hollow groove (2101), wherein the hollow groove (2101) is provided in the front and rear sides of the protrusion (1101), a fixed screw barrel (2102) is fixedly connected to the inner side of the hollow groove (2101), a threaded rod (2103) is threadedly connected to the inner circle of the fixed screw barrel (2102), the threaded rod (2103) is sleeved in the outer circle of the hoop (3), and a torsion disc (2104) is fixedly connected to the outer side of the threaded rod (2103).

6. A cross arm for a power transmission line according to claim 1, characterized in that: The clamping assembly (22) comprises a clamping plate (2201), wherein the clamping plate (2201) is rotatably connected to the inner side of the threaded rod (2103), and a groove is provided on the inner ring of the hoop (3) corresponding to the position of the clamping plate (2201). The outer side of the clamping plate (2201) is fixedly connected to a limiting slide bar (2202) at the upper and lower sides of the threaded rod (2103), and the limiting slide bar (2202) is slidably connected to the inner side of the outer ring of the hoop (3), and the outer side of the limiting slide bar (2202) is fixedly connected to a connecting strip (2203).

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