Supporting arm support

Abstract

The utility model discloses a corbel support, and belongs to the technical field of cable installation. The corbel bracket comprises a corbel which is provided with a bearing plate; the connecting part is connected with the supporting arm, and an inner gear is arranged in the connecting part; an external gear engaged with the internal gear; a limiting groove and a limiting hole are formed in the frame body, and the outer gear is clamped in the limiting groove; and the pin shaft penetrates through the limiting hole and the axis of the outer gear so as to limit the relative position between the outer gear and the frame body. The technical problem that a supporting arm of an existing supporting arm support is difficult to replace is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable installation, and particularly relates to a bracket for a support arm. Background Art

[0002] The bracket for a support arm is mainly used for supporting a cable tray and cables. Most of the current brackets for support arms are fixed brackets, and the support arm part is vertically arranged with respect to the wall surface. During the installation process of equipment such as process pipelines and electrical cable trays, it is inevitable to encounter the situation of line turning. When encountering corners or oblique angles, most of the current brackets for support arms are difficult to meet the installation requirements.

[0003] In order to meet the requirement of cable erection when encountering corners or oblique angles, brackets with rotatable support arms have emerged on the current market. However, the structure of the current rotatable brackets for support arms is relatively complex. When the bracket for a support arm is assembled on site, different specifications of brackets for support arms usually need to be installed according to different situations. If the structure of the bracket for a support arm is relatively complex, various specifications of brackets for support arms need to be carried before assembly, making the assembly work cumbersome. Therefore, the current bracket for a support arm has the technical problem that the support arm is difficult to replace. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a bracket for a support arm, aiming to solve the technical problem of poor adjustability existing in the current bracket for a support arm.

[0005] To achieve the above object, the bracket for a support arm proposed by the utility model includes:

[0006] A support arm having a bearing plate;

[0007] A connecting part connected to the support arm and having an internal gear inside;

[0008] An external gear meshing with the internal gear;

[0009] A frame body with a limiting groove and a limiting hole opened thereon, and the external gear is engaged with the limiting groove;

[0010] A pin shaft passing through the limiting hole and the axis of the external gear to limit the relative position between the external gear and the frame body.

[0011] Optionally, in an embodiment of the utility model, the number of teeth of the internal gear and the external gear is the same, and the number of teeth ranges from 10 to 18.

[0012] Optionally, in an embodiment of the utility model, the number of teeth of the internal gear and the external gear is 16.

[0013] Optionally, in an embodiment of the present utility model, the limiting groove has at least three tooth-shaped grooves, and the teeth of the external gear are located within the tooth-shaped grooves.

[0014] Optionally, in an embodiment of the present utility model, the shape of the limiting groove is the same as the cross-sectional shape of the external gear.

[0015] Optionally, in an embodiment of the present utility model, the external gear protrudes from the connecting portion by a predetermined length.

[0016] Optionally, in an embodiment of the present utility model, the support arm further has a reinforcing rib plate, the reinforcing rib plate connects the bearing plate and the connecting portion, and the reinforcing rib plate provides support for the bearing plate.

[0017] Optionally, in an embodiment of the present utility model, the support arm and the connecting portion are integrally formed.

[0018] Optionally, in an embodiment of the present utility model, the frame body includes:

[0019] A mounting plate, on which mounting holes are provided;

[0020] Side plates, there are two side plates, the two side plates are arranged oppositely and both are provided with the limiting holes, and one of the two side plates is provided with the limiting groove.

[0021] Optionally, in an embodiment of the present utility model, the side plate provided with the limiting groove is the first side plate, and the other side plate is the second side plate, and the height of the space between the external gear and the second side plate is greater than the height of the connecting portion.

[0022] Compared with the prior art, the present utility model can at least achieve the following beneficial effects. The technical solution proposed by the present utility model has a simple structure. It realizes the connection between components such as the frame body, the support arm and the external gear through the meshing between the pin shaft and the gear, and only by pulling out the pin shaft, the disassembly of each part can be realized. At the erection site, when unexpected situations occur and the length or type of the support arm needs to be adjusted, only by pulling out the pin shaft, the replacement of the support arm can be completed, and after the replacement, the components can be quickly assembled back again.

[0023] In addition, at the erection site, corners or bevels will inevitably appear in the erection environment. At this time, the support arm needs to be rotated by a certain angle to meet the erection requirements. When rotating the support arm, the outer gear can be disengaged from the limit groove, and the support arm can be driven to rotate by a certain angle to meet the erection requirements. Then, the outer gear can be re-engaged with the limit groove to realize the angle rotation of the support arm. It is also possible to disengage the connecting part from the engagement with the outer gear, rotate by a certain angle and then re-engage with the outer gear to complete the angle rotation of the support arm. The support arm bracket proposed in this solution has a simple structure, can quickly complete the replacement of the support arm and can realize the angle rotation of the support arm to meet different erection requirements. In addition, since the support arm bracket has fewer components, the possibility of damage is lower and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0025] Figure 1 Structural schematic diagram of an embodiment of a support arm bracket of the present invention;

[0026] Figure 2 Side view of a support arm of the present invention;

[0027] Figure 3 Structural schematic diagram of the connecting part in a support arm of the present invention;

[0028] Figure 4 Structural schematic diagram of the first side plate in an embodiment of a support arm of the present invention;

[0029] Figure 5 Structural schematic diagram of the first side plate in another embodiment of a support arm of the present invention.

[0030] Explanation of the reference numerals in the drawings:

[0031] 100, support arm; 110, bearing plate; 120, reinforcing rib plate; 200, connecting part; 210, internal gear; 300, outer gear; 400, frame body; 410, mounting plate; 411, mounting hole; 420, first side plate; 421, limit groove; 422, flat end; 423, semi-circular end; 430, second side plate; 440, limit hole; 450, support rib; 500, pin shaft;

[0032] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the drawings. Detailed implementation mode

[0033] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] Referring to Figures 1 to 5 , the present utility model proposes a bracket for a support arm, including:

[0038] The support arm 100, which has a bearing plate 110;

[0039] The connecting part 200, which is connected to the support arm 100 and has an internal gear 210 inside;

[0040] An external gear 300 that meshes with the internal gear 210;

[0041] A frame body 400 with a limiting groove 421 and a limiting hole 440 opened thereon, and the external gear 300 is engaged in the limiting groove 421;

[0042] A pin shaft 500 passes through the limiting hole 440 and the axis of the external gear 300 to limit the relative position between the external gear 300 and the frame body 400.

[0043] The structure of this technical solution is simple. It realizes the connection between components such as the frame body 400, the support arm 100, and the external gear 300 through the pin shaft 500 and the meshing between gears. And only by pulling out the pin shaft 500 can the disassembly of each part be realized. At the erection site, when unexpected situations occur and the length or type of the support arm 100 needs to be adjusted, only by pulling out the pin shaft 500 can the replacement of the support arm 100 be completed, and after the replacement, each component can be quickly reinstalled again.

[0044] In addition, at the erection site, corners or bevels will inevitably appear in the erection environment. At this time, the support arm 100 needs to be rotated by a certain angle to meet the erection requirements. When rotating the support arm 100, the external gear 300 can be disengaged from the limiting groove 421, and the support arm 100 can be driven to rotate by a certain angle to meet the erection requirements, and then the external gear 300 can be re-engaged in the limiting groove 421 to realize the angular rotation of the support arm 100. It is also possible to disengage the connecting portion 200 from the meshing with the external gear 300, rotate by a certain angle and then re-engage with the external gear 300 to complete the angular rotation of the support arm 100. The support arm bracket proposed in this solution has a simple structure, can quickly complete the replacement of the support arm 100 and can realize the angular rotation of the support arm 100 to meet different erection requirements. In addition, since the components of this support arm bracket are fewer, the possibility of its damage is lower and the cost is lower.

[0045] Further, the number of teeth of the internal gear 210 and the external gear 300 ranges from 10 teeth to 18 teeth. In a preferred embodiment, the number of teeth is selected as 16 teeth.

[0046] The number of teeth will affect the meshing degree between the connecting portion 200 and the external gear 300. The more teeth there are, the better the stability of the connection between the connecting portion 200 and the external gear 300. In addition, the more teeth the external gear 300 has, the more rotation angles it can achieve. For example, when the number of teeth of the gear is 12 teeth, each rotation can rotate at least 30°, and when the number of teeth of the gear is 18 teeth, each rotation can rotate at least 20°. The number of teeth of the external gear 300 will affect the rotation angle of the support arm 100.

[0047] Although the more the number of teeth, the higher the rotational accuracy of the support arm 100. However, the function of the support arm 100 is to support equipment such as pipelines and electrical cable trays, so its load-bearing capacity also needs to be considered. It can be understood that when the number of teeth increases, the tooth thickness of each tooth will decrease, and the engagement effect with the limiting groove 421 will decline. Therefore, if the number of teeth is blindly increased, the overall support performance will also decrease. The preferred choice for the number of teeth of the internal gear 210 and the external gear 300 is 16. The support arm 100 can rotate at least 22.5 degrees each time, and it can meet the support for equipment such as pipelines and electrical cable trays.

[0048] Furthermore, the limiting groove 421 is a groove structure with a toothed groove. When engaged, the teeth of the external gear 300 are engaged in the toothed groove to limit the circumferential movement of the external gear 300. At least three toothed grooves are provided in the limiting groove 421. When the number of toothed grooves in the limiting groove 421 is less than the number of teeth of the external gear 300, multiple toothed grooves are distributed circumferentially along the limiting groove 421 to improve the limiting effect. Preferably, the shape of the limiting groove 421 can be the same as the shape of the cross-section of the external gear 300, that is, the number of toothed grooves is the same as the number of teeth of the external gear 300. It can be understood that the fewer the number of toothed grooves, the lower the processing difficulty, and the more the number of toothed grooves, the better the engagement effect. Therefore, the number of toothed grooves can be determined according to different needs.

[0049] Furthermore, after assembly, the external gear 300 protrudes from the connecting portion 200 by a predetermined length. After the support arm 100 bears the load, the pin shaft 500 needs to bear part of the stress. However, compared with the connecting portion 200 and the external gear 300, the load-bearing capacity of the pin shaft 500 is poor. In order to prevent the pin shaft 500 from deforming or breaking due to excessive stress, the external gear 300 is designed to protrude from the connecting portion 200 by a predetermined length. When the pin shaft 500 is stressed, the protruding part of the external gear 300 disperses the force, preventing the stress from concentrating on a certain point of the pin shaft 500 and improving the ability of the pin shaft 500 to resist deformation.

[0050] Furthermore, the frame body 400 includes:

[0051] A mounting plate 410, on which mounting holes 411 are provided;

[0052] Side plates, there are two side plates, namely the first side plate 420 and the second side plate 430. The two side plates are arranged oppositely and both are provided with limiting holes 440. One of the two side plates is provided with a limiting groove 421.

[0053] The mounting plate 410 is used to fix the entire support arm bracket to a fixed body such as a wall. Mounting holes 411 are provided thereon, which is convenient for using screws, etc. to fix the mounting plate 410 to the wall.

[0054] There are two side plates, and the two side plates are arranged opposite to each other, that is, there is a certain space between the two side plates. In order to facilitate the rotation of the connecting portion 200, the height of the space between the outer gear 300 and the second side plate 430 is set to be greater than the height of the connecting portion 200. In this way, the connecting portion 200 can be disengaged from the outer gear 300, lifted into the space between the outer gear 300 and the second side plate 430, rotated by a certain angle and then lowered to engage with the outer gear 300, so that the rotation of the support arm 100 can be realized without disassembling the pin shaft 500.

[0055] In order to improve the bearing capacity, a reinforcing rib plate 120 is provided at the bearing plate 110 to improve the bearing capacity of the bearing plate 110, and a support rib 450 is provided at the side plate to improve the support capacity of the frame body 400. Since the connection between the support arm 100 and the connecting portion 200 needs to bear a large stress and is prone to fracture, it is preferably that the support arm 100 and the connecting portion 200 are integrally formed. Of course, the support arm 100, the reinforcing rib plate 120, and the connecting portion 200 can be integrally formed, and the mounting plate 410 and the side plate can also be integrally formed.

[0056] In addition, the first side plate 420 has a flat end 422 and a semi-circular end 423. Its flat end 422 is connected to the mounting plate 410, and its semi-circular end 423 abuts against the reinforcing rib of the support arm 100. When the support arm 100 does not rotate, the reinforcing rib contacts the midpoint of the outer circumference of the semi-circular end 423. When the support arm 100 rotates, the semi-circular end 423 will not affect the rotation of the support arm 100.

[0057] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural transformations made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A support arm bracket, characterized in that: include: A bracket arm having a bearing plate; A connecting part, which is connected to the supporting arm and has an internal gear inside; an external gear meshing with the internal gear; A frame body, wherein a limiting groove and a limiting hole are provided on the frame body, and the external gear is engaged with the limiting groove; A pin shaft passes through the limiting hole and the axis of the external gear to limit the relative position between the external gear and the frame body.

2. The support arm bracket according to claim 1, characterized in that: The number of teeth of the internal gear is the same as that of the external gear, and the number of teeth thereof ranges from 10 to 18.

3. The support arm bracket according to claim 2, characterized in that: The number of teeth of the internal gear and the external gear is 16.

4. The support arm bracket according to claim 1, characterized in that: The limiting groove has at least three tooth-shaped grooves, and the teeth of the external gear are located in the tooth-shaped grooves.

5. The support arm bracket according to claim 4, characterized in that: The shape of the limiting groove is the same as the cross-sectional shape of the external gear.

6. The support arm bracket according to claim 1, characterized in that: The external gear protrudes from the connecting portion by a predetermined length.

7. The support arm bracket according to claim 1, characterized in that: The support arm also has a reinforcing rib plate, which connects the bearing plate and the connecting portion, and the reinforcing rib plate provides support for the bearing plate.

8. The support arm bracket according to claim 1 or 7, characterized in that: The support arm and the connecting portion are integrally formed.

9. The support arm bracket according to claim 1, characterized in that: The frame comprises: A mounting plate, wherein a mounting hole is formed on the mounting plate; There are two side panels, which are arranged opposite to each other and both are provided with the limiting holes, and one of the two side panels is provided with the limiting groove.

10. The support arm bracket according to claim 9, characterized in that: The side plate with the limiting groove is the first side plate, the other side plate is the second side plate, and the height of the space between the external gear and the second side plate is greater than the height of the connecting portion.

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