Groove type cable bridge with telescopic function

Abstract

The utility model belongs to the technical field of groove type cable bridges, and particularly relates to a groove type cable bridge with a telescopic function, which comprises an outer bridge. An extension frame is connected in the outer bridge frame in a sliding manner; through the arrangement of the extension mechanism, the length of the outer bridge frame can be conveniently extended and adjusted, that is, the outer bridge frame is pre-installed and fixed at a use site, and then an extension rod can be pulled to drive an inner gear to move downwards according to the required extension length, namely the installation butt joint length, so that the inner gear is separated from a second gear; when the rotating limit of the second gear and the transmission rod is released, the extension frame can be pulled out to adjust the length of the extension frame outside the outer bridge frame until the pulled length meets the required requirement, then the extension rod can be loosened, and under the pressure of the first spring, the inner gear resets and the rotating limit is performed on the second gear and the first gear; and then the movement of the rack and the extension frame is limited, so that the stability of the adjusted extension frame can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of trough cable trays, and specifically relates to a trough cable tray with a telescopic function. Background Art

[0002] A trough cable tray is a trough component bent from a whole steel plate. The difference between it and a tray in concept is the height-width ratio. The tray is shallow and wide, while the trough cable tray has a certain depth and is enclosed.

[0003] During construction, multiple trough cable trays are often spliced. However, the length of the trough cable tray is fixed, which is not convenient for adjusting the length of the trough cable tray according to the actual installation length. It is necessary to cut the trough cable tray or prefabricate a trough cable tray with a corresponding length, which affects the installation efficiency and production cost. Therefore, in view of the above problems, a trough cable tray with a telescopic function is proposed. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art and solve the problem that during construction, multiple trough cable trays are often spliced, while the length of the trough cable tray is fixed, which is not convenient for adjusting the length of the trough cable tray according to the actual installation length, and it is necessary to cut the trough cable tray or prefabricate a trough cable tray with a corresponding length, which affects the installation efficiency and production cost, a trough cable tray with a telescopic function is proposed.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: A trough cable tray with a telescopic function according to the utility model includes an outer cable tray; an extension frame is slidably connected inside the outer cable tray. Extension grooves are opened on both sides of the extension frame, and racks are fixedly connected to the inner side walls of the extension grooves.

[0006] An extension mechanism is arranged on the outer cable tray. The extension mechanism includes a positioning groove opened inside the outer cable tray. A transmission rod is rotatably connected to the inner bottom wall of the positioning groove. A transmission groove is opened on the inner side wall of the outer cable tray. A through hole is communicated between the transmission groove and the positioning groove. The top end of the transmission rod passes through the through hole and is elastically connected to the inner top wall of the transmission groove. A first gear is fixedly connected to the outer wall of the transmission rod located in the transmission groove. The first gear is meshed with the rack. A second gear is fixedly connected to the outer wall of the transmission rod located in the positioning groove. An internal gear is slidably connected in the positioning groove. The bottom end of the internal gear is elastically connected to the inner bottom wall of the positioning groove through a first spring. The internal gear is meshed with the second gear. An extension rod is fixedly connected to the bottom of the internal gear. The bottom end of the extension rod penetrates through the outer cable tray and communicates with the outside. Through the setting of the extension mechanism, the length of the outer cable tray can be conveniently extended and adjusted.

[0007] Preferably, the bottom end of the extension rod located outside is fixedly connected to a toggle plate, and the outer wall of the toggle plate is provided with anti-slip grooves. Through the provision of the toggle plate, it is convenient to apply force to multiple extension rods at the same time.

[0008] Preferably, the top of the outer bridge is fixedly connected to a rotating block, one side of the rotating block is rotatably connected to a cover plate through a hinge, and the other end of the cover plate is installed with a buckle. Through the setting of the cover plate and the buckle, a complete trough-type cable bridge can be formed in conjunction with the outer bridge.

[0009] Preferably, the top of the extension frame is fixedly connected to an assembly plate, and one side of the assembly plate is rotatably connected to an auxiliary plate through a hinge. One side of the auxiliary plate is provided with an auxiliary groove adapted to the cover plate. By setting the assembly plate and the auxiliary plate, the length of the cover plate can be extended, further ensuring the extension adjustment of the trough-type cable tray.

[0010] Preferably, a first heat dissipation hole is provided at the bottom of the outer bridge frame, and a second heat dissipation hole is provided on the inner bottom wall of the extension frame. The arrangement of the first heat dissipation hole and the second heat dissipation hole can facilitate the dissipation of heat generated by the cable running.

[0011] Preferably, a guide plate is fixedly connected to the inner side wall of the outer bridge frame, and guide grooves adapted to the guide plate are provided on both sides of the extension frame. Through the setting of the guide plate and the guide groove, the movement of the extension frame can be positioned and guided.

[0012] Preferably, mounting blocks are fixedly connected to both sides of the outer cable tray, and mounting holes are provided on the tops of the mounting blocks. The arrangement of the mounting blocks and the mounting holes facilitates the installation of the trough-type cable tray at the place of use.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a trough-type cable tray with a telescopic function. Through the setting of an extension mechanism, the length of the outer bridge can be extended and adjusted, that is, the outer bridge is pre-installed and fixed at the use location, and then the length can be extended as needed, that is, the installation docking length is pulled to pull the extension rod to drive the inner gear to move downward, the inner gear is disengaged from the contact with the second gear, and the rotation limit of the second gear and the transmission rod is released, and the extension frame can be pulled out to adjust its length outside the outer bridge until the pulled length meets the required requirements, and then the extension rod can be loosened. Under the pressure of the first spring, the inner gear is reset and the second gear and the first gear are rotationally limited, and then the movement of the rack and the extension frame is movement-limited, so as to ensure the stability of the adjusted extension frame.

[0015] 2. The present utility model provides a trough-type cable tray with a telescopic function. Through the settings of the cover plate and the buckle, it can cooperate with the outer tray to form a complete trough-type cable tray. Through the settings of the assembly plate and the auxiliary plate, the length of the cover plate can be extended, further ensuring the extension and adjustment of the trough-type cable tray. Description of the Drawings

[0016] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is a perspective view of the present utility model;

[0018] Figure 2 is a perspective view of the outer tray in the present utility model;

[0019] Figure 3 is one of the sectional structure diagrams of the outer tray and the extension frame in the present utility model;

[0020] Figure 4 is the sectional structure diagram of the outer tray in the present utility model;

[0021] Figure 5 is the other sectional structure diagram of the outer tray and the extension frame in the present utility model;

[0022] Figure 6 is Figure 4 the enlarged structure diagram at A in;

[0023] Figure 7 is Figure 5 the enlarged structure diagram at B in.

[0024] Legend Explanation:

[0025] 1. Outer tray; 2. Extension frame; 3. Rack; 4. Extension mechanism; 41. Transmission rod; 42. First gear; 43. Second gear; 44. Inner gear; 45. First spring; 46. Extension rod; 5. Dialing plate; 6. Cover plate; 7. Assembly plate; 8. Auxiliary plate; 9. First heat dissipation hole; 10. Guide plate; 11. Installation block. Detailed Embodiment

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. 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 making creative efforts belong to the scope of protection of the present utility model.

[0027] Specific embodiments are given below.

[0028] Please refer to Figures 1-7 , the present utility model provides a trough-type cable tray with a telescopic function, including an outer tray 1; an extension frame 2 is slidably connected inside the outer tray 1, extension grooves are opened on both sides of the extension frame 2, and racks 3 are fixedly connected to the inner side walls of the extension grooves;

[0029] An extension mechanism 4 is arranged on the outer tray 1. The extension mechanism 4 includes a positioning groove opened inside the outer tray 1, a transmission rod 41 is rotatably connected to the inner bottom wall of the positioning groove, a transmission groove is opened on the inner side wall of the outer tray 1, a through hole is communicated between the transmission groove and the positioning groove, the top end of the transmission rod 41 passes through the through hole and is elastically connected to the inner top wall of the transmission groove, a first gear 42 is fixedly connected to the outer wall of the transmission rod 41 located in the transmission groove, the first gear 42 is meshed with the rack 3, a second gear 43 is fixedly connected to the outer wall of the transmission rod 41 located in the positioning groove, an internal gear 44 is slidably connected in the positioning groove, the bottom end of the internal gear 44 is elastically connected to the inner bottom wall of the positioning groove through a first spring 45, the internal gear 44 is meshed with the second gear 43, and an extension rod 46 is fixedly connected to the bottom of the internal gear 44. The bottom end of the extension rod 46 penetrates through the outer tray 1 and communicates with the outside; during operation, through the setting of the extension mechanism 4, the length of the outer tray 1 can be conveniently extended and adjusted, that is, the outer tray 1 is pre-installed and fixed at the use location, and then the extension rod 46 can be pulled according to the required extended length, that is, the installation and docking length, to drive the internal gear 44 to move downward. The internal gear 44 disengages from the contact with the second gear 43, and the rotational limit of the second gear 43 and the transmission rod 41 is released, and then the extension frame 2 can be pulled out to adjust its length outside the outer tray 1 until the pulled length meets the required requirements. Subsequently, the extension rod 46 can be released. Under the pressure of the first spring 45, the internal gear 44 resets and limits the rotation of the second gear 43 and the first gear 42, and then limits the movement of the rack 3 and the extension frame 2, so as to ensure the stability of the adjusted extension frame 2.

[0030] Furthermore, as Figure 1 and Figure 2 shown, a toggle plate 5 is fixedly connected to the bottom end of the extension rod 46 located outside, and anti-slip patterns are arranged on the outer wall of the toggle plate 5. During operation, through the setting of the toggle plate 5, it is convenient to apply forces to a plurality of extension rods 46 simultaneously.

[0031] Furthermore, as Figure 1 and Figure 3 shown, a rotating block is fixedly connected to the top of the outer tray 1, one side surface of the rotating block is rotatably connected to a cover plate 6 through a hinge, and a buckle is installed at the other end of the cover plate 6. During operation, through the setting of the cover plate 6 and the buckle, it can cooperate with the outer tray 1 to form a complete trough-type cable tray.

[0032] Further, as shown in Figure 1 and Figure 2 , a mounting plate 7 is fixedly connected to the top of the extension frame 2. One side surface of the mounting plate 7 is rotatably connected to an auxiliary plate 8 through a hinge. An auxiliary groove adapted to the cover plate 6 is formed on one side surface of the auxiliary plate 8. During operation, through the arrangement of the mounting plate 7 and the auxiliary plate 8, the length of the cover plate 6 can be extended, further ensuring the extension adjustment of the trough cable tray.

[0033] Further, as shown in Figure 1 and Figure 4 , a first heat dissipation hole 9 is formed in the bottom of the outer cable tray 1, and a second heat dissipation hole is formed in the inner bottom wall of the extension frame 2. During operation, through the arrangement of the first heat dissipation hole 9 and the second heat dissipation hole, the heat generated during the operation of the cable can be dissipated conveniently.

[0034] Further, as shown in Figure 1 and Figure 2 , a guide plate 10 is fixedly connected to the inner side wall of the outer cable tray 1, and guide grooves adapted to the guide plate 10 are formed on both sides of the extension frame 2. During operation, through the arrangement of the guide plate 10 and the guide grooves, positioning and guiding can be provided for the movement of the extension frame 2.

[0035] Further, as shown in Figure 1 , mounting blocks 11 are fixedly connected to both sides of the outer cable tray 1, and mounting holes are formed in the tops of the mounting blocks 11. During operation, through the arrangement of the mounting blocks 11 and the mounting holes, the trough cable tray can be conveniently installed at the use location.

[0036] Working principle: The outer cable tray 1 is pre-installed and fixed at the use location. Subsequently, according to the length that needs to be extended, that is, the installation and docking length, the extension rod 46 is pulled to drive the internal gear 44 to move downward. The internal gear 44 disengages from the contact with the second gear 43, releasing the rotational limit on the second gear 43 and the transmission rod 41. Then, the extension frame 2 can be pulled out to adjust its length outside the outer cable tray 1 until the pulled length meets the required requirements. Subsequently, the extension rod 46 can be released. Under the pressure of the first spring 45, the internal gear 44 resets and limits the rotation of the second gear 43 and the first gear 42, and then limits the movement of the rack 3 and the extension frame 2, thus ensuring the stability of the adjusted extension frame 2.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A trough-type cable tray with a telescopic function, characterized in that: It comprises an outer bridge frame (1); an extension frame (2) is slidably connected to the outer bridge frame (1); both sides of the extension frame (2) are provided with extension slots; the inner side wall of the extension slot is fixedly connected to a rack (3); The outer bridge (1) is provided with an extension mechanism (4), the extension mechanism (4) includes a positioning groove provided in the outer bridge (1), the inner bottom wall of the positioning groove is rotatably connected to a transmission rod (41), the inner side wall of the outer bridge (1) is provided with a transmission groove, a through hole is provided between the transmission groove and the positioning groove, the top end of the transmission rod (41) passes through the through hole and is elastically connected to the inner top wall of the transmission groove, the transmission rod (41) is fixedly connected to the outer wall of the transmission groove, and the first gear ( 42) is meshed with the rack (3), the transmission rod (41) is fixedly connected to the outer wall of the positioning groove with a second gear (43), the positioning groove is slidably connected with an internal gear (44), the bottom end of the internal gear (44) is elastically connected to the inner bottom wall of the positioning groove through a first spring (45), the internal gear (44) is meshed with the second gear (43), the bottom of the internal gear (44) is fixedly connected to an extension rod (46), the bottom end of the extension rod (46) passes through the outer bridge (1) and is connected to the outside.

2. The trough cable tray with telescopic function according to claim 1, wherein: The bottom end of the extension rod (46) located outside is fixedly connected to a toggle plate (5), and the outer wall of the toggle plate (5) is provided with anti-slip grooves.

3. The trough cable tray with a telescopic function according to claim 2, wherein: The top of the outer bridge (1) is fixedly connected to a rotating block, one side of the rotating block is rotatably connected to a cover plate (6) via a hinge, and the other end of the cover plate (6) is installed with a buckle.

4. A trough cable tray with a telescopic function according to claim 3, characterized in that: The top of the extension frame (2) is fixedly connected to an assembly plate (7), one side of the assembly plate (7) is rotatably connected to an auxiliary plate (8) via a hinge, and one side of the auxiliary plate (8) is provided with an auxiliary groove adapted to the cover plate (6).

5. The trough cable tray with telescopic function according to claim 4, characterized in that: The bottom of the outer bridge frame (1) is provided with a first heat dissipation hole (9), and the inner bottom wall of the extension frame (2) is provided with a second heat dissipation hole.

6. The trough cable tray with a telescopic function according to claim 5, characterized in that: A guide plate (10) is fixedly connected to the inner side wall of the outer bridge frame (1), and guide grooves adapted to the guide plate (10) are provided on both sides of the extension frame (2).

7. The trough cable tray with telescopic function according to claim 6, characterized in that: Both sides of the outer bridge (1) are fixedly connected with mounting blocks (11), and a mounting hole is provided on the top of the mounting block (11).

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