A universal single crossarm that is easy to install

Abstract

The present invention discloses a universal single crossarm that is easy to install, comprising a crossarm mechanism, including a crossarm body, an outer clamp located outside the crossarm body, a fixing member located at the end of the outer clamp, an inner clamp located inside the outer clamp, a limiting member located outside the inner clamp, a buffer located outside the limiting member, and a tension member located outside the buffer. The present invention integrates an adjustable mounting clamp with the crossarm body, so that the crossarm can meet the installation requirements of different-sized electric poles while reducing the inconvenience of carrying accessories and installing the crossarm caused by too many accessories. At the same time, through the coordinated arrangement of the limiting member, the buffer member, and the tension member, the outer clamp and the inner clamp can be adjusted synchronously, so that the crossarm can be installed and adapted to different-sized electric poles. At the same time, while the outer clamp is fixed, the position of the inner clamp can be synchronously locked.

Description

Technical Field

[0001] The present invention relates to the field of crossarms, and in particular to a universal single crossarm which is convenient to install. Background Art

[0002] In the current power line network, low-voltage overhead lines use single crossarms as supporting hardware (especially for 10kV distribution network line switch installation). This is an indispensable infrastructure in overhead lines, which is related to the operational health and safety performance of distribution network lines and plays a vital role in distribution network overhead lines. However, due to the different vertical heights of overhead conductors to the ground, buildings, rivers, roads, etc. stipulated by the distribution network overhead conductors, the different technical specifications such as the material, wire diameter and spacing between the two poles, and the different pole models used, the requirements for the selected crossarms and accessories are also different. The existing single crossarm is usually assembled from multiple accessories. The crossarm composed of multiple accessories causes great trouble to users during the installation process. There are problems such as difficulty for one person to operate and incorrect accessory configuration caused by different installation positions and environments, which brings many inconveniences to the installation of the crossarm. Therefore, a universal single crossarm with convenient installation is proposed. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the invention.

[0004] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the present invention aims to solve the problem in the prior art that cross arms are inconvenient to install.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a universal single crossarm that is easy to install, comprising a crossarm mechanism, including a crossarm body, an outer clamping member located on the outside of the crossarm body, a fixing member located at the end of the outer clamping member, an inner clamping member located on the inside of the outer clamping member, a limiting member located on the outside of the inner clamping member, a buffer member located on the outside of the limiting member, and a tension member located on the outside of the buffer member.

[0007] As a preferred solution of the universal single cross arm with convenient installation described in the present invention, an adjustment opening and a movable opening are respectively provided on both sides of the interior of the cross arm body for matching with the outer clamping member.

[0008] As a preferred solution of the universal single crossarm for easy installation of the present invention, the outer clamp member includes a left clamp and a right clamp symmetrically arranged, a connecting clamp is provided at the top of the left clamp, and a connecting head is provided at the top of the right clamp, the connecting head penetrates into the interior of the connecting clamp, and a pin rod penetrates between the connecting head and the connecting clamp;

[0009] The connecting clip and the connecting head are connected by pins.

[0010] As a preferred solution of the conveniently installed universal single cross arm of the present invention, the ends of the left and right clamps are both provided with fixing pieces;

[0011] The fixing member includes a fixing seat arranged at the bottom of the outer clamping member, a movable block is arranged on the inner side of the fixing seat, a screw is arranged on the outer side of the movable block, a gasket is sleeved on the outer side of the screw, and a nut is arranged on the outer side of the gasket.

[0012] As a preferred solution of the conveniently installed universal single cross arm of the present invention, a cavity is provided inside the middle section of the cross arm body, and the inner hoop is provided inside the cavity;

[0013] The inner hoop member includes an adjustment hoop arranged inside the cavity, a spring is arranged on the outside of the adjustment hoop, a top column is arranged on the bottom of the adjustment hoop, a limiting seat is arranged on the outside of the top column, and a guide groove is left on the back of the limiting seat.

[0014] As a preferred solution of the universal single crossarm with convenient installation of the present invention, wherein: the adjustment hoop is symmetrically arranged with respect to the crossarm body, and the adjustment hoop and the crossarm body form an elastic telescopic structure via a spring;

[0015] The limiting seat is formed by integrally splicing two symmetrically arranged wedge-shaped blocks, and the center of the surface of the limiting seat to both sides is arranged from low to high.

[0016] As a preferred solution of the conveniently installed universal single cross arm of the present invention, a ridge cooperating with the guide groove is provided on the inner wall of the cavity.

[0017] As a preferred solution of the universal single cross arm for convenient installation of the present invention, the limiting member includes a stop block provided on the outside of the limiting seat, a limiting groove is provided at the bottom of the stop block, a limiting block is provided inside the limiting groove, and a push column is provided on the surface of the stop block;

[0018] The buffer member includes a movable plate arranged outside the stop block, a sliding groove is left on one side of the surface of the movable plate, a guide groove is left on the other side of the surface of the movable plate, a sliding post is provided inside the sliding groove, and the sliding post is fixed to the inner wall of the cavity;

[0019] The tension member includes a first set of columns arranged on the back of the movable plate, the outer side of the first set of columns is sleeved with a tension spring, the other end of the tension spring is connected to a second set of columns, and the second set of columns is fixed to the inner wall of the cross arm body.

[0020] As a preferred solution of the universal single cross arm with convenient installation of the present invention, wherein: the stop block is wedge-shaped, and the inclined surface of the stop block contacts the outer edge of the bottom surface of the limiting seat;

[0021] The limiting block is fixed to the bottom of the cavity, and the limiting block and the limiting groove are in sliding fit.

[0022] As a preferred solution of the conveniently installed universal single cross arm of the present invention, wherein: the guide groove is arranged in an arc-shaped and inclined manner, and the push column is movably embedded in the guide groove;

[0023] The first set of columns and the second set of columns are arranged diagonally with respect to the movable plate.

[0024] The beneficial effects of the present invention are as follows: by integrating the adjustable mounting clamp with the crossarm body, the crossarm can meet the installation requirements of different-sized poles while reducing the trouble of carrying too many accessories and the inconvenience of crossarm installation.

[0025] At the same time, through the coordination between the limiting parts, buffer parts and tension parts, synchronous adjustment between the outer clamp parts and the inner clamp parts can be achieved, so that the cross arm can be installed and adapted to poles of different sizes. At the same time, while the outer clamp parts are fixed, the position of the inner clamp parts can be synchronously locked, which ensures the installation stability of the cross arm, reduces the installation steps of the cross arm, improves the overall installation efficiency of the cross arm, and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0027] Figure 1 A schematic diagram of the overall structure of a universal single crossarm that is easy to install according to an embodiment of the present invention;

[0028] Figure 2 A schematic structural diagram of the outer clamping member of a universal single cross arm that is easy to install according to an embodiment of the present invention;

[0029] Figure 3A schematic cross-sectional view of a universal single crossarm for easy installation according to an embodiment of the present invention;

[0030] Figure 4 A schematic structural diagram of an inner hoop member in a universal single crossarm that is easy to install according to an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the matching structure of a limiting member and a buffer member in a universal single crossarm that is easy to install according to an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the connection structure of a tension member and a buffer member in a universal single crossarm that is easy to install according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, these schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0036] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Example 1

[0038] Reference Figure 1-3 , this embodiment provides a universal single cross arm that is easy to install.

[0039] A universal single cross arm that is easy to install includes a cross arm mechanism 100 .

[0040] Specifically, the crossarm mechanism 100 includes a crossarm body 101 arranged in a horizontal rod shape, and an outer clamping member 102 is penetrated through the outer side of the crossarm body 101. At the same time, an adjustment port 101a and a movable port 101b are respectively provided on both sides of the interior of the crossarm body 101 for the outer clamping member 102 to move. A fixing member 103 is also integrally installed at the end of the outer clamping member 102, and an inner clamping member 104 opposite to it is also provided between the inner sides of the outer clamping member 102.

[0041] Furthermore, the outer hoop 102 includes a symmetrically arranged left hoop 102a and a right hoop 102b, each of which is a rod with an arc at the top, and the top of the left hoop 102a is integrally connected to a U-shaped connecting clamp 102c with a hollow middle portion, while the top of the right hoop 102b is integrally connected to a T-shaped connecting head 102d, the front end of the connecting head 102d passes through the concave portion of the U-shaped connecting clamp 102c, and the connecting axis between the connecting head 102d and the connecting clamp 102c is A pin rod 102e passes through the center, so that the left clamp 102a and the right clamp 102b can be pin-connected and rotated around the pin rod 102e. At the same time, the setting of the adjusting port 101a and the movable port 101b can provide space for the relative movement between the left clamp 102a, the right clamp 102b and the cross arm body 101 respectively. The opening size of the movable port 101b is larger than the adjusting port 101a, so that the right clamp 102b can be completely rotated out of the cross arm body 101 through the movable port 101b to realize the overall opening of the outer clamp part 102.

[0042] At the same time, the ends of the left and right hoop 102a and 102b are fixedly equipped with fixing parts 103, which include a fixing seat 103a arranged at the bottom of the outer hoop 102, and a movable block 103b is hingedly connected to the inner side of the fixing seat 103a. At the same time, the bottom surface of the movable block 103b is integrally provided with a screw rod 103c for connection and fixing, and the outer side of the screw rod 103c is provided with a gasket 103d, and the outer side of the gasket 103d is also provided with a screw rod 103c for connection and fixing. The nut 103e that is threadedly engaged with the screw 103c, and the diameter of the gasket 103d are larger than the width of the crossarm body 101, so as to ensure that the nut 103e and the screw 103c cooperate to stably lock the external clamp 102 through the abutment between the gasket 103d and the crossarm body 101. At the same time, the rotation setting of the screw 103c can make the screw 103c always relatively perpendicular to the crossarm body 101, thereby ensuring the anti-slip property of the nut 103e when locking.

[0043] A cavity M is also left inside the middle section of the crossarm body 101, and an internal clamp member 104 is arranged inside the cavity M. The internal clamp member 104 includes an adjustment clamp 104a symmetrically arranged inside the cavity M. The upper end of the adjustment clamp 104a is arranged in an arc shape to facilitate the adjustment clamp 104a to fit with the utility pole during the actual installation process. At the same time, a ridge is also provided on the contact surface between the adjustment clamp 104a and the utility pole. Through the setting of the ridge, the extrusion force when the adjustment clamp 104a is connected to the utility pole can be increased, so as to further improve the stability of the crossarm mechanism 100 during installation.

[0044] During the specific installation operation, the left clamp 102a is pre-fixed by the setting of the fixing piece 103 on the same side, and then the right clamp 102b is rotated outward around the pin rod 102e to open the outer clamp piece 102 as a whole, and the cross arm mechanism 100 is placed on the outside of the corresponding installation position of the pole, and the curvature of the inner clamp piece 104 is matched with the outer surface of the pole, and then the right clamp 102b is rotated and reset to make its end fixing piece 103 pass through the movable opening 102 inside the cross arm body 101. 1b, at this time, the end of the screw rod 103c is located on the other side of the cross arm body 101, the outer clamping member 102 is closed as a whole, and the gasket 103d and the nut 103e are placed on the screw rod 103c in turn. With the cooperation of the gasket 103d, the nut 103e and the screw rod 103c, the connection and locking between the outer clamping member 102, the inner clamping member 104 and the utility pole are realized through the fixing member 103 set at the end of the left clamping member 102a and the right clamping member 102b, and the overall installation of the cross arm mechanism 100 is completed.

[0045] Example 2

[0046] Reference Figure 1-4 , which is the second embodiment of the present invention, is based on the previous embodiment and differs from the previous embodiment in that:

[0047] The inner hoop member 104 further includes a spring 104b disposed on the outer side of the bottom of the adjustment hoop 104a.

[0048] Furthermore, the adjustment clamp 104a and the spring 104b are symmetrically arranged with respect to the cross arm body 101. The spring 104b elastically supports the adjustment clamp 104a, so that the adjustment clamp 104a can be elastically telescopically moved in the cavity M. During the installation of the cross arm mechanism 100, the curved surface of the adjustment clamp 104a fits with the surface of the utility pole, and then the adjustment clamp 104a can squeeze the spring 104b to move horizontally under the extrusion force from the utility pole and the restrictive force of the cavity M, thereby realizing adaptive adjustment of the distance between the two adjustment clamps 104a according to the specific thickness of the utility pole. While meeting the installation requirements between the cross arm and utility poles of different sizes, the cross arm can be better fitted with the surface of the utility pole, thereby improving the installation stability of the cross arm.

[0049] Example 3

[0050] Reference Figure 1-6 , which is the third embodiment of the present invention, is based on the previous embodiment and differs from the previous embodiment in that:

[0051] The cross arm mechanism 100 also includes a limiting member 105 arranged on one side of the bottom of the inner clamping member 104. A buffer member 106 is provided on the outside of the limiting member 105 for pushing the limiting member 105 to move horizontally. At the same time, a tension member 107 is provided on the back of the buffer member 106 for pulling itself.

[0052] Specifically, the bottom of the adjustment clamp 104a is also integrally provided with a top column 104c, and a limiting seat 104d is provided below the top column 104c. At the same time, two guide grooves 104e are symmetrically provided on the back of the limiting seat 104d. At the same time, a convex ridge that can cooperate with the guide groove 104e is provided on the inner wall of the cavity M. Through the mutual cooperation between the convex ridge and the guide groove 104e, the movement trajectory of the limiting seat 104d can be limited and guided to avoid the movement trajectory of the limiting seat 104d from being offset and affecting its mutual cooperation with the top column 104c.

[0053] The limiting member 105 includes a wedge-shaped stop block 105a arranged on the outside of the limiting seat 104d, and a limiting groove 105b is left at the bottom of the stop block 105a. A limiting block 105c is movably embedded inside the limiting groove 105b, and the limiting block 105c is fixed to the bottom of the cavity M. The sliding cooperation between the limiting block 105c and the limiting groove 105b can limit the sliding of the stop block 105a to ensure that the stop block 105a is always in a horizontal movement state. At the same time, a push column 105d is also integrated with the surface of the stop block 105a.

[0054] The buffer member 106 includes a U-shaped movable plate 106a installed on the front and rear sides of the block 105a. A sliding groove 106b is provided on one side of the front surface of the movable plate 106a, and a sliding column 106d is movably embedded in the interior of the sliding groove 106b. The sliding column 106d is fixed to the inner wall of the cavity M, and the sliding column 106d and the sliding groove 106b can slide relative to each other. At the same time, the movable plate 106a can rotate around the sliding column 106d through the cooperation between the sliding column 106d and the sliding groove 106b. A guide groove 106c that can slide with the push column 105d is provided on the other side of the surface of the movable plate 106a.

[0055] The tension member 107 includes a first set of columns 107a arranged on the back of the movable plate 106a, and a tension spring 107b is sleeved on the outer side of the first set of columns 107a. The other end of the tension spring 107b is connected to the second set of columns 107c. At the same time, the second set of columns 107c is fixed to the inner wall of the crossarm body 101, and the first set of columns 107a and the second set of columns 107c are arranged diagonally with respect to the movable plate 106a. The tension member 107 can pull the buffer member 106 through the elastic force of the tension spring 107b.

[0056] Furthermore, the limiting seat 104d is formed by two symmetrically arranged wedge blocks spliced together as one body, and the center of the surface of the limiting seat 104d to both sides is arranged from low to high. When the adjustment clamp 104a moves to both sides under the action of the extrusion force, the top column 104c moves synchronously with it, and then through the setting of the symmetrical inclined surface at the top of the limiting seat 104d, when the inclined surface of the limiting seat 104d contacts the corresponding top column 104c, the top column 104c can be restricted by the force of the inclined surface to avoid further movement of the adjustment clamp 104a, thereby realizing the positioning of the adjustment clamp 104a.

[0057] Preferably, the stopper 105a is wedge-shaped, and the inclined surface of the stopper 105a contacts the outer edge of the bottom surface of the limiting seat 104d. Therefore, when the stopper 105a moves horizontally, the inclined surface at its top can push the limiting seat 104d to move up and down, thereby achieving contact and cooperation between the limiting seat 104d and the top column 104c.

[0058] The guide groove 106c is hook-shaped with one end tilted upward, and the tilting direction of the tilted end is the same as the extension direction of the tension spring 107b. The push column 105d is movably embedded in the guide groove 106c. Initially, the push column 105d is located at the top of the tilted section of the guide groove 106c. When the right hoop 102b rotates inward, its lower end contacts the movable plate 106a, and its inward pushing force acts on the movable plate 106a, thereby allowing the movable plate 106a to move between the slide groove 106b and the slide column 106d. At this time, as the movable plate 106a moves, the tension spring 107b is gradually stretched by the force, and the elastic force of the tension spring 107b is always tilted downward, so that the block 105a is always in contact with the top of the guide groove 106c. At the same time, the block 105a is relatively stationary with the guide groove 106c under the restriction of the inclined inner wall of the guide groove 106c, and then the block 105a can be synchronously moved horizontally under the cooperation of the push column 105d and the guide groove 106c, thereby squeezing the inclined surface of the block 105a. The limiting seat 104d moves upward and contacts the top column 104c. By cooperating between the inclined surface of the limiting seat 104d and the top column 104c, the outward movement trend of the top column 104c is limited, thereby realizing the positioning of the inner hoop 104. When the limiting seat 104d contacts the top column 104c and cannot move further, if the right hoop 102b fails to rotate to the tightened state, then under the further rotation of the right hoop 102b, the stop block 105a cannot move, and then the movable plate 106a can be pushed by the right hoop 102b to surround The sliding column 106d rotates clockwise, so that the pushing column 105d can move to the horizontal section of the guide groove 106c. At this time, the pushing column 105d and the guide groove 106c can slide relative to each other, so that when the block 105a is stationary, the movable plate 106a can still move relative to the block 105a, thereby allowing the right clamp 102b to be retracted into place. At the same time, when the right clamp 102b is opened again, the movable plate 106a can be reset under the traction of the tension spring 107b for subsequent normal use.

[0059] When the cross arm is installed, the adjusting clamp 104a is squeezed by the electric pole and pushes the spring 104b to move outward, and the top column 104c moves synchronously with it until the two adjusting clamps 104a are respectively fitted with the electric pole from both sides, and then the right clamp 102b is rotated inward to tighten the outer clamp member 102 as a whole to complete the installation of the cross arm. When the right clamp 102b is rotated inward, the movable plate 106a can be pushed inward synchronously, and then the stop block is pushed through the cooperation of the guide groove 106c and the push column 105d. 105a moves toward the limiting seat 104d, thereby causing the limiting seat 104d to move upward under the action of the inclined surface of the stop block 105a until it contacts the bottom surface of the top column 104c. Thus, the outward movement trend of the top column 104c is restricted by the inclined setting of the surface of the limiting seat 104d, and cooperates with the electric pole to achieve synchronous positioning after the adjustment of the inner hoop 104 during the fixing process of the outer hoop 102. At the same time, when the right hoop 102b continues to retract inward, the stop block 105a cannot move, and the movable plate Under the push of the right hoop 102b, 106a can rotate clockwise around the sliding column 106d, so that the pushing column 105d can move to the horizontal section of the guide groove 106c. At this time, the pushing column 105d and the guide groove 106c can slide relative to each other, so that when the block 105a is stationary, the movable plate 106a can still move relative to the block 105a, thereby allowing the right hoop 102b to be retracted into place. At the same time, when the right hoop 102b is opened again, the movable plate 106a can be pulled back by the tension spring 107b. It is reset under the traction of the clamp 105 for subsequent normal use. Through the coordination between the limiting member 105, the buffer member 106 and the tension member 107, the synchronous adjustment between the outer clamp member 102 and the inner clamp member 104 can be achieved, so that the cross arm can be installed and adapted to different sizes of poles. At the same time, when the outer clamp member 102 is fixed, the position of the inner clamp member 104 can be synchronously locked, which ensures the installation stability of the cross arm, reduces the installation steps of the cross arm, improves the overall installation efficiency of the cross arm, and saves time and effort.

[0060] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0061] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0062] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A universal single cross arm that is easy to install, characterized by: include, A cross arm mechanism (100) comprises a cross arm body (101), an outer hoop member (102) located outside the cross arm body (101), a fixing member (103) located at the end of the outer hoop member (102), an inner hoop member (104) located inside the outer hoop member (102), a limiting member (105) located outside the inner hoop member (104), a buffer member (106) located outside the limiting member (105), and a tension member (107) located outside the buffer member (106); A cavity (M) is provided inside the middle section of the cross arm body (101), and the inner hoop (104) is arranged inside the cavity (M); The inner hoop member (104) comprises two adjustment hoops (104a) symmetrically arranged inside the cavity (M), a spring (104b) is arranged on the outside of the adjustment hoop (104a), a top column (104c) is arranged on the bottom of the adjustment hoop (104a), a limiting seat (104d) is arranged on the outside of the top column (104c), and a guide groove (104e) is left on the back of the limiting seat (104d); The limiting member (105) includes a stopper (105a) arranged outside the limiting seat (104d), a limiting groove (105b) is provided at the bottom of the stopper (105a), a limiting block (105c) is provided inside the limiting groove (105b), and a pushing column (105d) is provided on the surface of the stopper (105a); The buffer member (106) includes a movable plate (106a) arranged outside the stop block (105a), a sliding groove (106b) is provided on one side of the front surface of the movable plate (106a), and a guide groove (106c) that can slide with the push column (105d) is provided on the other side of the surface of the movable plate (106a), and a sliding column (106d) is provided inside the sliding groove (106b), and the sliding column (106d) is fixed to the inner wall of the cavity (M); The tension member (107) includes a first sleeve column (107a) arranged on the back of the movable plate (106a), a tension spring (107b) is sleeved on the outer side of the first sleeve column (107a), the other end of the tension spring (107b) is connected to a second sleeve column (107c), and the second sleeve column (107c) is fixed to the inner wall of the cross arm body (101); The stop block (105a) is wedge-shaped, and the inclined surface of the stop block (105a) contacts the outer edge of the bottom surface of the limiting seat (104d); The limiting block (105c) is fixed to the bottom of the cavity (M), and the limiting block (105c) and the limiting groove (105b) are in sliding fit; The guide groove (106c) is arranged in an arc-shaped and inclined manner, and the push column (105d) is movably embedded in the guide groove (106c); The first set of columns (107a) and the second set of columns (107c) are arranged diagonally with respect to the movable plate (106a).

2. The universal single cross arm for easy installation according to claim 1, characterized in that: An adjustment opening (101a) and a movable opening (101b) that match the outer hoop member (102) are respectively provided on both sides of the interior of the cross arm body (101).

3. The universal single cross arm for easy installation according to claim 1 or 2, characterized in that: The outer hoop member (102) comprises a symmetrically arranged left hoop (102a) and a right hoop (102b); a connecting clamp (102c) is provided at the top end of the left hoop (102a); a connecting head (102d) is provided at the top end of the right hoop (102b); the connecting head (102d) penetrates into the interior of the connecting clamp (102c); a pin rod (102e) penetrates between the connecting head (102d) and the connecting clamp (102c); The connection clip (102c) and the connection head (102d) are pin-connected.

4. The universal single cross arm for easy installation according to claim 3, characterized in that: The ends of the left hoop (102a) and the right hoop (102b) are both provided with fixing members (103); The fixing member (103) comprises a fixing seat (103a) arranged at the bottom of the outer hoop member (102); a movable block (103b) is arranged on the inner side of the fixing seat (103a); a screw rod (103c) is arranged on the outer side of the movable block (103b); a gasket (103d) is sleeved on the outer side of the screw rod (103c); and a nut (103e) is arranged on the outer side of the gasket (103d).

5. The universal single cross arm for easy installation according to claim 4, characterized in that: The adjusting hoop (104a) and the cross arm body (101) form an elastic telescopic structure via a spring (104b); The limiting seat (104d) is formed by integrally splicing two symmetrically arranged wedge-shaped blocks, and the center of the surface of the limiting seat (104d) to both sides are arranged from low to high.

6. The universal single cross arm for easy installation according to claim 4, characterized in that: The inner wall of the cavity (M) is provided with a ridge that matches the guide groove (104e).

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