Mounting bracket, bracket unit and connector box assembly

Abstract

The utility model belongs to the field of optical fibers and cables, and particularly discloses a mounting support, a support unit and a connector box assembly.The mounting support comprises a base and two supporting bodies symmetrically arranged on the base, and the base is used for being connected with a to-be-fixed structure; the two support bodies have the same structure and are oppositely arranged at an interval, one side, close to the other support body, of each support body is provided with at least one limiting groove which is used for being matched with a hanging lug on a connector box to realize limiting, and meanwhile, each support body is provided with a through first threaded hole which is used for being connected with the hanging lug on the connector box. Connection between the mounting bracket and the connector box can be realized only by moving the connector box along the direction perpendicular to the structure to be fixed, the mounting bracket has the advantages of convenience in mounting, time saving and labor saving, and the mounting bracket and the connector box can be limited in the horizontal direction and the vertical direction without bolt fixation; therefore, the connector box does not need to be lifted when the subsequent installation bolt is locked, so that single-person operation is realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of optical fiber cable, more particularly, relates to a mounting bracket, a bracket unit and a joint box assembly. BACKGROUND

[0002] The joint box of optical cable is an important optical distribution node device, which can connect two or more optical cables together to realize the functions of managing, distributing and protecting the optical fiber cable, so as to stably and reliably transmit optical signals. In the construction of communication network, the joint box of optical cable is generally installed by wall hanging or pole holding.

[0003] The mounting mode of the joint box of the prior art is difficult to realize single-person operation, and it is necessary to hold up the joint box assembly while locking the thimble, especially when the joint box assembly is heavy, it is difficult to hold up with one hand, and multiple persons are needed to complete the installation, resulting in an increase in installation cost. CONTENT OF THE UTILITY MODEL

[0004] In view of the defects of the prior art, the present application provides a mounting bracket, a bracket unit and a joint box assembly, aiming at solving the problem that the existing mounting mode of the joint box cannot realize single-person operation.

[0005] According to one aspect of the present application, a mounting bracket is provided, comprising a base and two support bodies symmetrically arranged on the base, the base being used to connect with a structure to be fixed; the two support bodies are the same structure and are oppositely arranged at intervals, at least one limiting groove is opened on one side of each support body close to the other support body, for cooperating with the ear of the joint box to realize limiting, and a first threaded hole is opened on the support body for connecting with the ear of the joint box.

[0006] Compared with the prior art, through the above technical scheme conceived by the present application, the support bodies arranged at intervals and the limiting grooves on the support bodies can realize the limiting of the mounting bracket in the horizontal direction and the vertical direction of the joint box, so that the joint box does not need to be lifted when locking the installation bolt, thereby realizing single-person operation.

[0007] As a further preferred, the support body comprises two first end faces oppositely arranged, a second end face and a third end face connected with the first end face and the base respectively, and a fourth end face arranged between the second end face and the third end face, the limiting groove is arranged on the second end face, and the fourth end face is close to one side of the second end face, and a positioning column hole extending to the base direction is opened, for auxiliary positioning.

[0008] As a further preferred, the inner wall of the positioning column hole is provided with a limiting protrusion for limiting the joint box in the direction perpendicular to the base, and / or,

[0009] The base is directly connected with the structure to be fixed, or is connected with the structure to be fixed through a throat clamp.

[0010] According to another aspect of the present application, a bracket unit is provided, which comprises a hanging lug and the mounting bracket described above, the shape of the hanging lug matches the gap structure between the two support bodies, and a second threaded hole is formed on the hanging lug to cooperate with the first threaded hole to achieve fixed connection of the mounting bracket and the hanging lug.

[0011] As a further optimization, two positioning columns are symmetrically arranged on the hanging lug, which cooperate with the positioning column holes to achieve auxiliary positioning.

[0012] As a further optimization, a first limiting rib is arranged on the bottom and / or both sides of the positioning column to abut against the second end surface of the mounting bracket.

[0013] As a further optimization, a limiting plane is arranged at both ends of the hanging lug in the length direction to abut against the two first end surfaces of the support body.

[0014] As a further optimization, a limiting buckle extending towards the mounting bracket is arranged on the limiting plane, and a buckle hole is correspondingly arranged on the base to cooperate with the limiting buckle to achieve limiting, and / or,

[0015] A second limiting rib is arranged on the first end surface to adjust the size of the support body.

[0016] According to another aspect of the present application, a joint box assembly is provided, which comprises at least two groups of the bracket unit described above and a joint box body, the bracket units in each group are arranged at intervals along the length direction of the joint box body, and the hanging lug in each group of the bracket units is fixedly connected with the joint box body or is integrally formed with the joint box body.

[0017] As a further optimization, the mounting brackets are connected through a connecting plate.

[0018] Overall, compared with the prior art, the above technical solutions conceived by the present application mainly have the following technical advantages:

[0019] 1. The present application provides a new connection method of the mounting bracket and the joint box through the support body and the limiting groove on the support body, which can realize the connection of the mounting bracket and the joint box by moving the joint box in a direction perpendicular to the structure to be fixed, has the advantages of convenient installation, time and labor saving, and can realize the limiting of the mounting bracket and the joint box in the horizontal direction and the vertical direction without bolt fixation, so that the joint box does not need to be lifted when the subsequent installation bolt is locked, thereby realizing single-person operation.

[0020] 2. In particular, the application can position the joint box in the direction perpendicular to the base through the positioning column hole and the limiting protrusion on the inner wall of the positioning column hole, so as to ensure that the first threaded hole of the mounting bracket is aligned with the threaded hole on the joint box, facilitating subsequent installation;

[0021] 3. The bracket unit provided by the application can further improve the connection reliability of the mounting bracket and the lug by providing a limiting plane at both ends of the lug, and can be limited by cooperating with the buckle hole on the base through the limiting buckle on the limiting plane, thereby ensuring that the first threaded hole is aligned with the second threaded hole, facilitating subsequent installation. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a wall-mounted installation schematic diagram of the joint box assembly provided by the embodiment of the application;

[0023] Figure 2 is a three-dimensional structure schematic diagram of the mounting bracket provided by the embodiment of the application;

[0024] Figure 3 is another three-dimensional structure schematic diagram of the mounting bracket provided by the embodiment of the application;

[0025] Figure 4 is a schematic diagram of the mounting bracket fixed on the wall provided by the embodiment of the application;

[0026] Figure 5 is a three-dimensional structure schematic diagram of the lug in the joint box assembly provided by the embodiment of the application;

[0027] Figure 6 is another three-dimensional structure schematic diagram of the lug in the joint box assembly provided by the embodiment of the application;

[0028] Figure 7 is Figure 1 a schematic diagram of the installation of the joint box assembly in the wall;

[0029] Figure 8 is a cross-sectional schematic diagram of the joint box assembly after installation provided by the embodiment of the application;

[0030] Figure 9 is an assembly schematic diagram of the mounting bracket and the connecting plate provided by the embodiment of the application;

[0031] Figure 10 is a three-dimensional structure schematic diagram of the lug in the joint box assembly provided by another embodiment of the application;

[0032] Figure 11 is a partial enlarged view of the joint box assembly after installation provided by another embodiment of the application;

[0033] Figure 12is a schematic view of a mounting of a joint box assembly according to another embodiment of the present application;

[0034] Figure 13 is Figure 12 a schematic view of a mounting of a joint box assembly according to another embodiment of the present application;

[0035] Figure 14 is a schematic view of a cooperation between a throat clamp and a mounting bracket in a joint box assembly according to another embodiment of the present application;

[0036] Figure 15 is a schematic view of a structure of a mounting bracket in a joint box assembly according to another embodiment of the present application;

[0037] Figure 16 is a partial enlarged view of a mounting of a mounting bracket and a joint box body according to another embodiment of the present application.

[0038] In all the drawings, the same reference signs are used to denote the same elements or structures, in which:

[0039] 1: a hanging ear, 1-1: a limiting body, 1-1-1: a second threaded hole, 1-1-2: a positioning column, 1-1-3: a first limiting rib, 1-2: a limiting boss, 1-3: a limiting plane, 1-3-1: a limiting buckle, 1-4: a supporting rib, 2: a mounting bracket, 2-1: a supporting body, 2-1-1: a first threaded hole, 2-1-2: a positioning column hole, 2-1-2-1: a limiting protrusion, 2-1-3: a first end face, 2-1-3-1: a second limiting rib, 2-1-4: a second end face, 2-1-5: a third end face, 2-1-5-1: a reinforcing rib, 2-1-5-2: a nut hole, 2-1-6: a fourth end face, 2-2: a base, 2-2-1: a third threaded hole, 2-2-2: a buckle hole, 2-3: a limiting groove, 2-3-1: a limiting side wall, 2-4: a throat clamp channel, 2-5: a boom supporting face, 2-6: a connecting plate, 3: a wall, 4: a joint box body, 5-1: a first fixing screw, 5-2: a nut, 6: a second fixing screw, 7: a mounting rod, 8: a throat clamp. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0041] As Figure 2 , 3As shown in FIGS. 15, the application provides a mounting bracket for a joint box, the mounting bracket 2 comprises a base 2-2 and two support bodies 2-1 symmetrically arranged on the base 2-2, the base 2-2 and the two support bodies 2-1 can be assembled after being respectively formed or can be integrally formed, and the base 2-2 is used to be connected with a structure to be fixed; the two support bodies 2-1 are arranged oppositely at a distance and have the same structure, each support body 2-1 comprises two first end faces 2-1-3, a second end face 2-1-4, a third end face 2-1-5 and a fourth end face 2-1-6 arranged oppositely, the second end face 2-1-4 and the third end face 2-1-5 are connected with the base 2-2 and the two first end faces 2-1-3 respectively, and the fourth end face 2-1-6 is arranged between the second end face 2-1-4 and the third end face 2-1-5, wherein the second end faces 2-1-4 of the two support bodies 2-1 are arranged oppositely, at least one limiting groove 2-3 is formed on the second end face 2-1-4, and the limiting groove 2-3 is used to be matched with a hanging ear 1 on the joint box 4 to realize limiting, in a preferred embodiment of the application, a limiting boss 1-2 matched with the position and size of the limiting groove 2-3 is arranged on the hanging ear 1, the limiting boss 1-2 and the limiting groove 2-3 are matched to realize the limiting function, and meanwhile, a first threaded hole 2-1-1 penetrating through the second end face 2-1-4 and the third end face 2-1-5 is formed on the support body 2-1, and the first threaded hole 2-1-1 is used to be matched with a second threaded hole 1-1-1 of the hanging ear 1 on the joint box 4 to realize the connection between the mounting bracket 2 and the hanging ear 1.

[0042] The support bodies arranged at intervals and the limiting grooves on the support bodies can realize the limiting of the joint box in the horizontal direction and the vertical direction by the mounting bracket, so that the joint box does not need to be lifted when the subsequent installation bolt is locked, thereby realizing the single-person operation and effectively simplifying the installation process of the joint box. Meanwhile, the application provides a brand-new joint box installation method, and the joint box in the prior art needs to be horizontally moved or up and down moved in the direction parallel to the plane of the structure to be fixed, so that the hanging ear 1 is embedded into the mounting bracket 2, and the joint box is locked by the mounting bracket 2. Figure 7As shown, the joint box is moved forward and backward along the direction perpendicular to the plane of the structure to be fixed during installation, so that the hanging ear 1 is embedded in the mounting bracket 2. For the joint box, the optical cable laying direction is generally parallel to the joint box. When the optical cable has been fixed and arranged in the joint box, it is more difficult to move the joint box along the direction parallel to the structure to be fixed, that is, the optical cable laying direction. It is more labor-saving and easier to move the joint box along the direction perpendicular to the plane of the structure to be fixed, which is convenient for installation. At the same time, when the joint box needs to be installed along the direction parallel to the plane of the structure to be fixed, that is, the moving direction of the joint box is parallel to the direction of the mounting bracket 2, the joint box will exert force on the mounting bracket 2 during the moving and installing process, which may affect the distance between the two mounting brackets 2, resulting in misalignment of the threaded holes of the mounting bracket 2 and the hanging ear 1 of the joint box, affecting installation. Therefore, compared with the prior art, the joint box installation method provided by the present application is more convenient, labor-saving, and more suitable for single-person operation.

[0043] Further, the number of limiting grooves 2-3 is preferably 2-4, so that better limiting effect can be obtained, and the production cost of the mounting bracket is avoided to be increased. Exemplarily, as shown in Figure 2 , two limiting grooves 2-3 are opened on the support body 2-1, and are respectively arranged at the two ends of the second end face 2-1-4 close to the two first end faces 2-1-3.

[0044] Further, as shown in Figure 2 , the fourth end face 2-1-6 close to the second end face 2-1-4 is provided with a positioning column hole 2-1-2 extending to the base 2-2, and the hanging ear 1 is provided with two positioning columns 1-1-2 symmetrically matched with the positioning column hole 2-1-2, and the positioning column 1-1-2 is matched with the positioning column hole 2-1-2 to achieve auxiliary positioning, so that the joint box body 4 is accurately positioned during installation, and the low accuracy caused by positioning only by the limiting groove 2-3 is avoided, so that the first threaded hole 2-1-1 and the second threaded hole 1-1-1 are not aligned, and the first fixing screw 5-1 is not convenient to install.

[0045] More preferably, as shown in Figure 15 , 16 , the inner wall of the positioning column hole 2-1-2 is provided with a limiting protrusion 2-1-2-1 for limiting the positioning column 1-1-2 along the direction perpendicular to the base 2-2, so as to prevent the joint box body 4 from moving along the direction perpendicular to the base 2-2, resulting in misalignment of the first threaded hole 2-1-1 and the second threaded hole 1-1-1, and the problem that the first fixing screw 5-1 is not convenient to install, thereby further simplifying the installation process.

[0046] Further, as shown in Figure 4 , the base 2-2 is directly connected with the structure to be fixed, or as shown in Figure 13As shown, the base 2-2 is connected to the structure to be fixed via a hose clamp 8. When wall-mounted, the structure to be fixed is wall 3, and the base 2-2 is directly connected to wall 3 via a second fixing screw 6.

[0047] like Figures 12-14 As shown, during pole installation, the structure to be fixed is the mounting pole 7. The base 2-2 is connected to the mounting pole via a hose clamp 8. A pole support surface 2-5 is provided at the end of the base 2-2 away from the support body 2-1, and a hollow hose clamp channel 2-4 is formed between the pole support surface 2-5 and the support body 2-1 for the hose clamp 8 to pass through. During installation, the hose clamp 8 is first passed through the hose clamp channel 2-4, then the hose clamp 8 is fitted onto the mounting pole 7 and locked until the pole support surface 2-5 and the mounting pole 7 are tightly fitted, thus achieving the connection between the base 2-2 and the structure to be fixed.

[0048] Furthermore, the mounting bracket 2 is made of high-strength weather-resistant plastic material, which will not cause rust or peeling, thus improving the product's service life. In addition, the cost of the plastic mounting bracket is lower than that of the stainless steel metal bracket, which can reduce costs.

[0049] In a preferred embodiment of this application, such as Figure 3 As shown, at least one reinforcing rib 2-1-5-1 is provided on the third end face 2-1-5 to improve the strength of the support body 2-1. Furthermore, a nut hole 2-1-5-2 is provided on the third end face 2-1-5 of one of the support bodies 2-1. The nut hole 2-1-5-2 is connected to the first threaded hole 2-1-1. The threaded hole 2-1-5-2 is used to engage the nut 5-2 to prevent the nut 5-2 from rotating when the first fixing screw 5-1 is tightened, thus preventing installation difficulties.

[0050] According to another aspect of this application, a bracket unit for a junction box is provided, the bracket unit including a lug 1 and the aforementioned mounting bracket 2, as shown below. Figure 5 , 6 As shown, the shape of the hanging ear 1 matches the gap structure between the two supports 2-1. The hanging ear 1 includes a limiting body 1-1 and at least one limiting boss 1-2. The limiting body 1-1 is embedded in the gap between the two supports 2-1. The number and position of the limiting bosses 1-2 correspond to the number and position of the limiting grooves 2-3 on the mounting bracket 2. The limiting body 1-1 has a second threaded hole 1-1-1, which is used to cooperate with the first threaded hole 2-1-1 to realize the fixed connection between the mounting bracket 2 and the hanging ear 1.

[0051] like Figure 8As shown, in one preferred embodiment of the present application, two limiting grooves 2-3 are opened on the support body 2-1, and are respectively arranged at the two ends of the second end face 2-1-4 close to the first end face 2-1-3, and the ear hook 1 matched with the limiting grooves 2-3 includes two limiting bosses 1-2, and is respectively arranged at the two ends of the limiting main body 1-1, and the limiting side wall 2-3-1 formed by the limiting grooves 2-3 abuts against the limiting bosses 1-2 to achieve limiting.

[0052] Further, as shown in Figure 5 , 6 , the bottom and / or two sides of the positioning column 1-1-2 are provided with the first limiting rib 1-1-3, so as to abut against the second end face 2-1-4 of the mounting bracket 2, for adjusting the distance only by modifying the first limiting rib 1-1-3 when the matching distance between the ear hook 1 and the mounting bracket 2 is not consistent, so as to reduce the cost.

[0053] Further, as shown in Figure 10 , 11 , the limiting flat surface 1-3 is provided with the limiting buckle 1-3-1 extending to the mounting bracket 2, and the base 2-2 is correspondingly provided with the buckle hole 2-2-2, for cooperating with the limiting buckle 1-3-1 to achieve limiting, so as to further improve the limiting accuracy and stability.

[0054] Further, as shown in Figure 5 , 6 , in order to increase the contact area of the ear hook 1 and the support body 2-1, the two ends of the ear hook 1 are provided with the limiting flat surface 1-3 for abutting against the two first end faces 2-1-3 of the support body 2-1, which can improve the positioning accuracy of the ear hook 1 and the support body 2-1, and can also improve the supporting stability of the ear hook 1 and the support body 2-1 before the mounting bolt, and improve the reliability of single-person operation.

[0055] Preferably, as shown in Figure 2 , 8 , the two first end faces 2-1-3 of the support body 2-1 are provided with the second limiting rib 2-1-3-1 for adjusting the size of the support body 2-1, so as to improve the size matching degree of the ear hook 1 and the support body 2-1.

[0056] According to another aspect of the present application, a joint box assembly is provided, as shown in Figure 1 , 13 , the joint box assembly includes at least two groups of the above-mentioned bracket units and a joint box body 4, and each group of the bracket units is arranged at intervals along the length direction of the joint box body 4, and the ear hook 1 in each group of the bracket units is fixedly connected with the joint box body 4, or is integrally formed with the joint box body 4.

[0057] The installation method of the mounting bracket 2 is determined by the installation method of the junction box body 4 and the fixing angle of the lug 1 on the junction box body 4, such as... Figure 1 As shown, in a preferred embodiment of this application, the two supports 2-1 of the mounting bracket 2 are symmetrically arranged along the vertical direction; as Figure 13 As shown, in another preferred embodiment of this application, the two supports 2-1 of the mounting bracket 2 are symmetrically arranged in the horizontal direction.

[0058] Furthermore, such as Figure 9 As shown, each mounting bracket 2 is connected by a connecting plate 2-6, which ensures accurate positioning when fixing the mounting bracket 2 to the wall 3 or mounting rod 7, avoiding measurement or construction errors that could lead to inaccurate distances between the mounting brackets 2 and affect the subsequent installation of the junction box body 2. The connecting plate 2-6 and the mounting bracket 2 can be fixed by snap-fit ​​or threaded connection, or they can be integrally formed.

[0059] Furthermore, the outer wall of the junction box body 4 is provided with several supporting ribs 1-4 along the circumference. When the hanging ear 1 and the mounting bracket 2 are installed, the fourth end face 2-1-6 of the mounting bracket 2 abuts against the supporting ribs 1-4, thereby increasing the contact area and making the support more secure.

[0060] When the junction box assembly provided in this application is wall-mounted, the base 2-2 of the mounting bracket 2 is provided with a third threaded hole 2-2-1. The mounting bracket 2 is fixed to the wall 3 by the second fixing screw 6 engaging with the third threaded hole 2-2-1. Then, the hanging ear 1 and the mounting bracket 2 are threaded together by the first fixing screw 5-1 and the nut 5-2 to achieve wall-mounting of the junction box assembly. For pole mounting, the mounting bracket 2 and the hose clamp 8 are first assembled, then the hose clamp 8 is fixed to the mounting pole 7. The hanging ear 1 and the mounting bracket 2 are then threaded together by the first fixing screw 5-1 and the nut 5-2 to achieve installation of the junction box assembly. By pre-fixing the mounting bracket 2 and then fixing the junction box body 4 with the hanging ear 1 and the mounting bracket 2, single-person operation can be achieved, saving construction labor costs. At the same time, this fixing method eliminates the need for hose clamp 8 between the mounting bracket 2 and the junction box body 4, reducing the number of hose clamps 8 and further reducing costs.

[0061] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0062] It should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present application and simplifying the description, and thus cannot be construed as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be construed as limiting the application.

[0063] In addition, the terms "first", "second", "third", etc. are used only to describe various conditions, and cannot be construed as indicating or implying a relative importance or an implicitly indicated number of the indicated technical features. Therefore, the features defined with "first", "second" or "third" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0064] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] Those skilled in the art can understand that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A mounting bracket, characterized in that, It includes a base (2-2) and two supports (2-1) symmetrically arranged on the base (2-2). The base (2-2) is used to connect with the structure to be fixed. The two supports (2-1) have the same structure and are arranged at intervals. Each support (2-1) has at least one limiting groove (2-3) on the side close to the other support (2-1) for cooperating with the hanging ear (1) on the connector box (4) to achieve limiting. At the same time, the support (2-1) has a through first threaded hole (2-1-1) for connecting with the hanging ear (1) on the connector box (4).

2. The mounting bracket as described in claim 1, characterized in that, The support body (2-1) includes two first end faces (2-1-3) arranged opposite to each other, a second end face (2-1-4) and a third end face (2-1-5) respectively connected to the first end face (2-1-3) and the base (2-2), and a fourth end face (2-1-6) disposed between the second end face (2-1-4) and the third end face (2-1-5). The limiting groove (2-3) is disposed on the second end face (2-1-4). The fourth end face (2-1-6) near the second end face (2-1-4) has a positioning pin hole (2-1-2) extending towards the base (2-2) for auxiliary positioning.

3. The mounting bracket as described in claim 2, characterized in that, The inner wall of the positioning post hole (2-1-2) is provided with a limiting protrusion (2-1-2-1) for limiting the connector box (4) in a direction perpendicular to the base (2-2), and / or, The base (2-2) is directly connected to the structure to be fixed, or is connected to the structure to be fixed through a hose clamp (8).

4. A support unit, characterized in that, The bracket unit includes a hanging ear (1) and a mounting bracket (2) as described in any one of claims 1 to 3. The shape of the hanging ear (1) matches the gap structure between the two supports (2-1), and the hanging ear (1) has a second threaded hole (1-1-1) for cooperating with the first threaded hole (2-1-1) to achieve a fixed connection between the mounting bracket (2) and the hanging ear (1).

5. The support unit as described in claim 4, characterized in that, Two positioning posts (1-1-2) are symmetrically arranged on the hanging ear (1). The positioning posts (1-1-2) cooperate with the positioning post holes (2-1-2) to achieve auxiliary positioning.

6. The support unit as described in claim 5, characterized in that, The bottom and / or sides of the positioning column (1-1-2) are provided with first limiting ribs (1-1-3) for abutting against the second end face (2-1-4) of the mounting bracket (2).

7. The support unit as described in claim 4, characterized in that, The two ends of the lug (1) along the length direction are provided with limiting planes (1-3) for abutting against the two first end faces (2-1-3) of the support (2-1).

8. The support unit as described in claim 7, characterized in that, The limiting plane (1-3) is provided with a limiting buckle (1-3-1) extending towards the mounting bracket (2), and the base (2-2) is provided with a corresponding buckle hole (2-2-2) for cooperating with the limiting buckle (1-3-1) to achieve limiting, and / or, A second limiting rib (2-1-3-1) is provided on the first end face (2-1-3) for adjusting the size of the support body (2-1).

9. A junction box assembly, characterized in that, The junction box assembly includes at least two sets of support units as described in any one of claims 4 to 8 and a junction box body (4). Each set of support units is spaced apart along the length of the junction box body (4). The lugs (1) in each set of support units are fixedly connected to the junction box body (4) or integrally formed with the junction box body (4).

10. The junction box assembly as claimed in claim 9, characterized in that, Each of the mounting brackets (2) is connected by connecting plates (2-6).

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