A non-standard hardware transformer cross arm

Abstract

The present application relates to a non-standard hardware transformer crossarm, and relates to the technical field of crossarms, which comprises a crossarm main body, connecting parts are fixedly provided on the opposite side surfaces of the crossarm main body, the two connecting parts are symmetrically arranged and bent to the same side, the two connecting parts and the crossarm main body together constitute an accommodating gap, a plurality of first fixing holes are provided on the crossarm main body, and a plurality of second fixing holes are provided on the connecting part; a reinforcing rod detachably installed in the accommodating gap is provided on the side surface of the crossarm main body, the opposite side surfaces of the reinforcing rod abut against the side surfaces of the two connecting parts close to each other, and a first gap for making way for the first fixing hole and a second gap for making way for the second fixing hole are provided on the reinforcing rod; in the present application, when the crossarm is applied to a large-sized transformer, the reinforcing rod can be installed in the accommodating gap, thereby enhancing the overall structural strength of the crossarm and meeting corresponding needs.

Description

Technical Field

[0001] The present application relates to the technical field of cross arms, and in particular to a non-standard hardware transformer cross arm. Background Art

[0002] Non-standard hardware transformer crossarms, as key components in the power transmission and transformation system, are also called iron accessories in the industry. This type of non-standard hardware occupies an indispensable position in the power transmission network, and its importance is self-evident. Crossarms, especially in the grand layout of the power grid, play a cornerstone role in supporting power lines and ensuring the stability of power transmission. Transformer crossarms specifically refer to those that provide installation or support functions for transformers, and their design and manufacturing must strictly comply with specific technical standards and safety requirements.

[0003] In the traditional technical context, the structure of the transformer crossarm is relatively simple, mainly consisting of a crossarm body and several fixing holes. In actual applications, such crossarms usually appear in pairs, tightly fixed between two poles by clamps, and then the pole-mounted circuit breaker is screwed into the fixing holes of the crossarm body by bolts to achieve stable installation and fixation. However, this seemingly reasonable installation method has exposed some problems in actual operation.

[0004] What is particularly prominent is that different types of transformers have different requirements for crossarm specifications. When facing large-sized transformers, if small-sized crossarms are still used for support, after a long period of load-bearing, the crossarms are likely to break due to being overloaded and other safety hazards. This problem not only affects the stability of power transmission, but also poses a potential threat to the safe operation of the power grid, and there is room for improvement. Summary of the invention

[0005] The purpose of this application is to provide a non-standard hardware transformer cross arm to solve the problem that small-sized cross arms cannot support large-sized transformers for a long time, posing a safety hazard.

[0006] The non-standard hardware transformer cross arm provided in this application adopts the following technical solution:

[0007] A non-standard hardware transformer cross arm comprises a cross arm main body, connecting parts are fixedly arranged on the opposite side surfaces of the cross arm main body, the two connecting parts are symmetrically arranged and bent to the same side, the two connecting parts and the cross arm main body together constitute an accommodating gap, a plurality of first fixing holes are opened on the cross arm main body, and a plurality of second fixing holes are opened on the connecting part; a reinforcing rod detachably installed in the accommodating gap is provided on the side of the cross arm main body, the opposite side surfaces of the reinforcing rod are in contact with the side surfaces of the two connecting parts close to each other, and a first gap making way for the first fixing hole and a second gap making way for the second fixing hole are opened on the reinforcing rod.

[0008] By adopting the above technical solution, when the cross arm is applied to a large-sized transformer, due to the installation arrangement of the reinforcement rod, the reinforcement rod can be installed in the accommodating notch, so that the two opposite side surfaces of the reinforcement rod abut against the side surfaces of the two connecting parts close to each other, thereby enhancing the overall structural strength of the cross arm, so that it has the structural strength to support the large-sized transformer for a long time and meet the corresponding needs.

[0009] Optionally, there are two reinforcing rods, and the two reinforcing rods are installed in the accommodating notch along a straight line direction, and the ends of the two reinforcing rods that are away from each other are hinged to the inner wall of the accommodating notch; the two reinforcing rods can be rotated outward to a state parallel to each other and fixed, and a protective curtain is provided on the outside of the cross arm body. When the two reinforcing rods are in a state parallel to each other, the two opposite side surfaces of the protective curtain are respectively connected to the side surfaces of the reinforcing rods that are close to each other in this state.

[0010] By adopting the above technical solution, when the subsequent transformer is installed on the crossarm, due to the combined arrangement of the reinforcing rod and the protective curtain, the reinforcing rod is first rotated from the accommodating notch and fixed to a state parallel to each other, and then the two sides of the protective curtain are fixedly connected to the two reinforcing rods. At this time, the tools required for the transformer installation can be placed on the upper side of the protective curtain, reducing the difficulty of the subsequent transformer installation.

[0011] Optionally, the reinforcing rod is provided with a storage cavity on both side surfaces that are close to each other when in a parallel state, the number of the protective curtains is two, the sides of the two protective curtains that are away from each other are fixedly connected to the inner wall of the storage cavity, and a plurality of hooks are fixed on the sides of the two protective curtains that are close to each other, and the hooks on the two protective curtains can be clamped and fixed to each other.

[0012] By adopting the above technical solution, when the protective curtain is not needed, due to the opening of the storage cavity on the reinforcing rod, the protective curtain can be stored in the storage cavity, and the reinforcing rod is rotated into the accommodating notch, this state can strengthen the structural strength of the cross arm; when the protective curtain is needed for placing tools, first the two reinforcing rods are rotated to a state parallel to each other and fixed, then the protective curtain is taken out of the storage cavity, and the hooks on the two protective curtains are used to clamp and fix each other, so that the protective curtain is unfolded and fixed, which is convenient for the subsequent production of tools required for transformer installation.

[0013] Optionally, an elastic clamping piece is provided on the side of the reinforcing rod facing the connecting portion, and a positioning groove for the elastic clamping piece to be inserted into is opened on the connecting portion.

[0014] By adopting the above technical solution, when the reinforcing rod is rotated and accommodated in the notch, due to the combined arrangement of the elastic clamping piece and the positioning groove, the elastic clamping piece can be elastically clamped into the positioning groove, thereby improving the installation stability of the reinforcing rod in this state.

[0015] Optionally, a cover plate for sealing the accommodating gap is provided on the outside of the cross arm body, one side of the cover plate is hinged to one of the edges of the connecting portion, and the other side of the cover plate is detachably connected to the edge of the connecting portion on the other side.

[0016] By adopting the above technical solution, due to the installation setting of the cover plate, after the reinforcement rod is rotated into the accommodating gap, the cover plate can be used to further seal the accommodating gap, thereby reducing the possibility of the subsequent reinforcement rod naturally escaping from the accommodating gap, while also enhancing the overall structural strength of the cross arm.

[0017] Optionally, a locking through hole is provided on the cover plate, a locking screw hole that can overlap with the locking through hole is provided on the connecting portion away from the cover plate, and a locking bolt that passes through the locking through hole and is screwed into the locking screw hole is provided on the outside of the cross arm body.

[0018] By adopting the above technical solution, during the installation of the cover plate, the user uses a tool to control the tightening or loosening of the locking bolt, and then detachably fixes the cover plate to the connecting portion, thereby achieving the sealing of the accommodating gap by the cover plate.

[0019] Optionally, the locking bolt is a butterfly bolt.

[0020] By adopting the above technical solution, the user can manually control the tightening or loosening of the locking bolt, thereby reducing the time consumed in opening or closing the cover.

[0021] Optionally, the cover plate is provided with two fixing notches opposite to each other; when the two reinforcing rods are rotated to be parallel to each other, the cover plate can be rotated to a position where the outer edges of the reinforcing rods are inserted into the fixing notches.

[0022] By adopting the above technical solution, when the two reinforcing rods are rotated to a state parallel to each other, due to the setting of the fixed notch on the cover plate, the cover plate can be rotated to a position where the outer edge of the reinforcing rod is inserted into the fixed notch, thereby locking the positions of the two reinforcing rods in this state, facilitating the subsequent installation and fixation of the protective curtain.

[0023] Optionally, the cover plate is provided with a guiding slope at the opening edge of the fixing notch.

[0024] By adopting the above technical solution, due to the setting of the guiding inclined surface, when the cover plate fixes the two reinforcing rods in a fixed state, it is convenient for the reinforcing rods to be inserted into the fixing notches along the guiding inclined surface.

[0025] Optionally, an elastic protrusion is fixedly provided on the inner wall of the fixing notch, and a fixing groove for the elastic protrusion to be inserted into is formed on the reinforcing rod.

[0026] By adopting the above technical solution, after the reinforcing rod is inserted into the fixing notch on the cover plate, due to the combination of the elastic protrusion and the fixing groove, the elastic protrusion on the inner wall of the fixing notch is inserted into the fixing groove on the reinforcing rod.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] When the cross arm is applied to a large-sized transformer, the reinforcing rod can be installed in the accommodating notch so that the two opposite side surfaces of the reinforcing rod abut against the side surfaces of the two connecting parts close to each other, thereby enhancing the overall structural strength of the cross arm and enabling it to have the structural strength to support the large-sized transformer for a long time and meet the corresponding needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0031] Figure 2 This is a schematic diagram of the exploded structure of the embodiment 1 of the present application showing the installation distribution of the cross arm body and the reinforcing rod;

[0032] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the present application;

[0033] Figure 4 This is a schematic diagram of the structure of the embodiment 2 of the present application, which embodies the installation and coordination of the reinforcing rod and the protective curtain;

[0034] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0035] Figure 6 It is a partial cross-sectional structural schematic diagram of the installation cooperation between the elastic clamping member and the cover plate embodied in the second embodiment of the present application;

[0036] Figure 7 It is a partial cross-sectional structural schematic diagram of the embodiment 2 of the present application showing the clamping fit between the reinforcing rod and the cover plate;

[0037] Figure 8 yes Figure 7 Schematic diagram of the enlarged portion B.

[0038] In the figure, 1, cross arm body; 11, accommodating notch; 12, first fixing hole; 2, connecting part; 21, second fixing hole; 22, positioning groove; 3, reinforcing rod; 31, first notch; 32, second notch; 33, storage cavity; 34, placement groove; 35, fixing groove; 4, protective curtain; 41, hook; 5, elastic clip; 51, compression spring; 52, arc-shaped protrusion; 6, cover plate; 61, fixing notch; 611, guide slope; 62, elastic protrusion; 7, locking bolt; 71, butterfly bolt. DETAILED DESCRIPTION

[0039] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0040] Embodiment 1:

[0041] Reference Figure 1 and Figure 2 A non-standard hardware transformer cross arm comprises a cross arm body 1, wherein two opposite sides of the cross arm body 1 are integrally bent with connecting parts 2, the two connecting parts 2 are symmetrically arranged and bent to the same side, and the two connecting parts 2 and the cross arm body 1 form an accommodating gap 11, a plurality of first fixing holes 12 are opened on the cross arm body 1, and a plurality of second fixing holes 21 are opened on the connecting part 2;

[0042] The cross arm can be made of stainless steel or alloy steel, and then nano-mesh technology is used on the surface of the cross arm of this material to form a dense protective film on its surface to prevent the invasion of corrosive media; when the cross arm is used, two cross arms are grouped together, and they are fixed to the electric pole after passing through the first fixing hole 12 by bolts, and the installation and fixation of the bottom side of the transformer and the cross arm are achieved by passing through the second fixing hole 21 by bolts.

[0043] Reference Figure 1 and Figure 2 The side of the cross arm body 1 is provided with a reinforcing rod 3 which can be detachably installed in the receiving notch 11, wherein the reinforcing rod 3 is made of a reset material, such as glass fiber reinforced plastic, carbon fiber composite material, etc. These materials have the advantages of high strength, light weight, corrosion resistance, etc.;

[0044] After the reinforcing rod 3 is installed, the two opposite side surfaces of the reinforcing rod 3 abut against the side surfaces of the two connecting parts 2 that are close to each other. The reinforcing rod 3 is provided with a first notch 31 that makes way for the first fixing hole 12 and a second notch 32 that makes way for the second fixing hole 21, so as to further improve the overall structural strength of the crossarm.

[0045] The implementation principle of the embodiment of the present application is:

[0046] When the cross arm is used in a large-sized transformer, the reinforcing rod 3 can be installed in the accommodating notch 11 so that the two opposite side surfaces of the reinforcing rod 3 abut against the mutually adjacent side surfaces of the two connecting parts 2, thereby enhancing the overall structural strength of the cross arm.

[0047] Embodiment 2:

[0048] Reference Figure 3 and Figure 4 The embodiment of the present application is different from the embodiment 1 in that the number of reinforcing rods 3 is two, the two reinforcing rods 3 are installed in the receiving notch 11 along a straight line direction, and the ends of the two reinforcing rods 3 that are away from each other are hinged to the inner wall of the receiving notch 11;

[0049] The two reinforcing rods 3 can be rotated outward to a state parallel to each other and fixed, and a protective curtain 4 is provided on the outside of the cross arm main body 1. When the two reinforcing rods 3 are in a state parallel to each other, the two opposite side surfaces of the protective curtain 4 are respectively connected to the side surfaces of the reinforcing rods 3 close to each other in this state; after the protective curtain 4 is installed, the tools required for the transformer installation can be placed on the upper side of the protective curtain 4, reducing the difficulty of subsequent transformer installation.

[0050] Reference Figure 4 and Figure 5 , there are two protective curtains 4, and when the two reinforcing rods 3 are in a mutually parallel state, a storage cavity 33 for storing and placing the protective curtains 4 is opened on the two side surfaces of the reinforcing rods 3 that are close to each other; wherein the side surfaces of the two protective curtains 4 that are far away from each other are fixedly connected to the inner wall of the storage cavity 33, and two hooks 41 are fixedly provided on the side surfaces of the two protective curtains 4 that are close to each other, and the hooks 41 on the two protective curtains 4 can be mutually clamped and fixed;

[0051] When the protective curtain 4 is needed for placing tools, the two reinforcing rods 3 are first rotated to be parallel to each other and fixed, then the protective curtain 4 is taken out from the storage cavity 33, and the hooks 41 on the two protective curtains 4 are used to clamp and fix each other, so as to unfold and fix the protective curtain 4; when the protective curtain 4 is not needed, the protective curtain 4 can be stored in the storage cavity 33, and the reinforcing rods 3 are rotated to the accommodating notch 11, and this state can enhance the structural strength of the cross arm.

[0052] Reference Figure 4 and Figure 6 An elastic clamping member 5 is provided on the side of the reinforcing rod 3 facing the connecting portion 2, wherein the elastic clamping member 5 includes a compression spring 51 and an arc-shaped protrusion 52. A placement groove 34 for the compression spring 51 and the arc-shaped protrusion 52 is provided on the reinforcing rod 3. The compression spring 51 presses one side of the arc-shaped protrusion 52 so that a part of the arc-shaped protrusion 52 protrudes out of the placement groove 34, and the protruding part of the arc-shaped protrusion 52 is an arc surface, and the arc length corresponding to the arc surface is a minor arc;

[0053] A positioning groove 22 is provided on the connecting portion 2 for the elastic clip 5 to be inserted into; when the reinforcing rod 3 is rotated and accommodated in the notch 11, the protruding part of the arc-shaped protrusion 52 is pressed into the positioning groove 22 under the compression of the compression spring 51, thereby improving the installation stability of the reinforcing rod 3 in this state.

[0054] Reference Figure 4 and Figure 6 A cover plate 6 for blocking the accommodating gap 11 is provided on the outside of the cross arm body 1, wherein one side of the cover plate 6 is hinged to the edge of one of the connecting parts 2 through a rotating shaft, and a locking screw hole is provided on the connecting part 2 away from the cover plate 6, and a locking through hole that can coincide with the locking through hole is provided on the cover plate 6. A locking bolt 7 that passes through the locking through hole and is screwed into the locking screw hole is provided on the outside of the cross arm body 1, and the locking bolt 7 is a butterfly bolt 71; the user can manually control the tightening or loosening of the locking bolt 7, so as to realize the detachable connection between the other side of the cover plate 6 and the connecting part 2 on the other side.

[0055] Reference Figure 7 and Figure 8 , the cover plate 6 is provided with two fixing notches 61; when the two reinforcing rods 3 are rotated to a state parallel to each other, the cover plate 6 can be rotated to a position where the outer edge of the reinforcing rod 3 is inserted into the fixing notch 61, so as to lock the positions of the two reinforcing rods 3 in this state;

[0056] The cover plate 6 is provided with a guiding slope 611 at the opening edge of the fixing notch 61, so that the reinforcing rod 3 can be inserted into the fixing notch 61 along the guiding slope 611; an elastic protrusion 62 is fixedly provided on the inner wall of the fixing notch 61, wherein the reinforcing rod 3 is provided with a fixing groove 35 for the elastic protrusion 62 to be inserted into, thereby improving the stability of the fixing of the reinforcing rod 3 and the cover plate 6 in this state.

[0057] The implementation principle of the embodiment of the present application is:

[0058] When installing the transformer after the cross arm is installed, first open the cover plate 6, rotate the two reinforcing rods 3 to a state parallel to each other, and rotate the cover plate 6 downward to a position where the outer edge of the reinforcing rod 3 is inserted into the fixing notch 61, then take the protective curtain 4 out of the storage cavity 33, and use the hooks 41 on the two protective curtains 4 to clamp and fix each other, at this time, the tools required for transformer installation can be placed on the upper side of the protective curtain 4;

[0059] When the protective curtain 4 is not needed, the protective curtain 4 can be stored in the storage cavity 33, and the reinforcing rod 3 can be rotated into the accommodating notch 11, and finally the cover plate 6 can be rotated downward and fixed with the locking bolts 7. This state can enhance the structural strength of the cross arm.

[0060] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0061] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A non-standard hardware transformer cross arm, comprising a cross arm body (1), connecting parts (2) are fixedly arranged on two opposite sides of the cross arm body (1), the two connecting parts (2) are symmetrically arranged and bent toward the same side, the two connecting parts (2) and the cross arm body (1) together form an accommodating notch (11), the cross arm body (1) is provided with a plurality of first fixing holes (12), and the connecting parts (2) are provided with a plurality of second fixing holes (21); It is characterized in that The side of the cross arm body (1) is provided with a reinforcing rod (3) which is detachably mounted in the accommodating notch (11); the two opposite side surfaces of the reinforcing rod (3) are in contact with the side surfaces of the two connecting parts (2) which are close to each other; the reinforcing rod (3) is provided with a first notch (31) which makes way for the first fixing hole (12) and a second notch (32) which makes way for the second fixing hole (21); The number of the reinforcing rods (3) is two, and the two reinforcing rods (3) are installed in the receiving notch (11) along a straight line direction, and the ends of the two reinforcing rods (3) that are far away from each other are hinged to the inner wall of the receiving notch (11); the two reinforcing rods (3) can be rotated outward to a state parallel to each other and fixed, and a protective curtain (4) is provided on the outside of the cross arm body (1), and when the two reinforcing rods (3) are in a state parallel to each other, the two opposite side surfaces of the protective curtain (4) are respectively connected to the side surfaces of the reinforcing rods (3) that are close to each other in this state; The reinforcing rod (3) is provided with a storage cavity (33) on two side surfaces close to each other when in a mutually parallel state; the number of the protective curtains (4) is two; the side surfaces of the two protective curtains (4) that are away from each other are fixedly connected to the inner wall of the storage cavity (33); a plurality of hooks (41) are fixedly provided on the side surfaces of the two protective curtains (4) that are close to each other; the hooks (41) on the two protective curtains (4) can be mutually clamped and fixed; the side surface of the reinforcing rod (3) that faces the connecting portion (2) is provided with an elastic clamping piece (5); the connecting portion (2) is provided with a positioning groove (22) for the elastic clamping piece (5) to be clamped; A cover plate (6) for sealing the accommodating notch (11) is provided on the outside of the cross arm body (1); one side of the cover plate (6) is hinged to the edge of one of the connecting parts (2), and the other side of the cover plate (6) is detachably connected to the edge of the connecting part (2) on the other side; two fixed notches (61) are provided on the cover plate (6) in opposite directions; when the two reinforcing rods (3) are rotated to a state parallel to each other, the cover plate (6) can be rotated to a position where the outer edge of the reinforcing rod (3) is inserted into the fixed notch (61).

2. The non-standard hardware transformer cross arm according to claim 1, characterized in that: The cover plate (6) is provided with a locking through hole, the connecting portion (2) away from the cover plate (6) is provided with a locking screw hole that can overlap with the locking through hole, and the outside of the cross arm body (1) is provided with a locking bolt (7) that passes through the locking through hole and is screwed into the locking screw hole.

3. The non-standard hardware transformer cross arm according to claim 2, characterized in that: The locking bolt (7) is a butterfly bolt (71).

4. The non-standard hardware transformer cross arm according to claim 1, characterized in that: The cover plate (6) is provided with a guiding inclined surface (611) at the opening edge of the fixing notch (61).

5. The non-standard hardware transformer cross arm according to claim 1, characterized in that: An elastic protrusion (62) is fixedly provided on the inner wall of the fixing notch (61), and a fixing groove (35) for the elastic protrusion (62) to be inserted into is provided on the reinforcing rod (3).

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