Protective device for weak current engineering

Abstract

A protection device for weak current engineering comprises a top row and a protection unit, and the protection unit comprises an upper protection assembly and a lower protection assembly. A plurality of first square grooves are formed in the two sides of the top row in the extending direction in an array mode. One group of protection units is arranged along the extension direction of the top row and is used for protecting a plurality of cables which are arranged in groups, and when a plurality of groups of cables exist in the weak current project, a plurality of groups of protection units are arranged along the vertical direction. The upper protection assembly comprises an inverted-U-shaped frame, inverted-L-shaped elastic pieces are arranged on the two sides of the inverted-U-shaped frame respectively, and upper rubber blocks matched with the cables are further arranged below the inner top face of the inverted-U-shaped frame. The lower protection assembly is assembled at the lower end of the upper protection assembly, second square grooves located below the first square grooves are formed in the two sides of the U-shaped frame respectively, and a plurality of lower rubber blocks matched with the upper rubber blocks respectively and used for clamping cables are arranged on the inner bottom face of the U-shaped frame. The protection device for the weak current engineering can stably clamp a cable, and is convenient for clamping a newly added cable when the weak current engineering is expanded in the later period.

Description

TECHNICAL FIELD

[0001] The utility model relates to the weak current engineering cable protection field especially, relates to a protection device for weak current engineering. BACKGROUND

[0002] Weak current engineering is the installation, debugging, maintenance engineering of low voltage, low current signal transmission system in building, covering communication, security, automatic control and other systems. In weak current engineering, each system involved generally needs to be arranged with cable, and the cable needs to be protected during construction to prevent damage and interference, ensure stable operation of the system, and improve safety and reliability.

[0003] In actual weak current engineering arrangement in building, as the demand for power and communication bandwidth in building increases, sometimes the weak current engineering needs to be upgraded and expanded, so a protection device that can conveniently expand with the cable at the same time is needed. UTILITY MODEL CONTENTS

[0004] In view of the above defects, the utility model provides a protection device for weak current engineering, which can stably clamp the cable and facilitate clamping of newly added cables when the weak current engineering is expanded later.

[0005] In order to achieve the purpose of the utility model, the following technologies are adopted:

[0006] A protection device for weak current engineering comprises:

[0007] A top row is provided with a plurality of first square grooves on both sides along the extension direction;

[0008] A group of protection units are arranged along the extension direction of the top row to protect a plurality of cables arranged in groups. When there are multiple groups of cables in the weak current engineering, the protection units are provided with multiple groups in the vertical direction. The protection unit comprises:

[0009] The upper protection assembly comprises an inverted U-shaped frame, and inverted L-shaped springs are arranged on both sides of the inverted U-shaped frame. When there is only one group of protection units, the horizontal part of the inverted L-shaped spring is assembled in the first square groove. The bottom end of the side of the inverted U-shaped frame is also provided with an inverted T-shaped groove arranged along the extension direction of the top row. The inner top surface of the inverted U-shaped frame is also provided with upper rubber blocks matched with the cables.

[0010] The lower protection assembly is assembled at the lower end of the upper protection assembly, and includes a U-shaped frame. Second square grooves are respectively formed at the two sides of the U-shaped frame below the first square groove. When the number of protection units is greater than one set, the horizontal part of the upside-down L-shaped spring located at the uppermost position is assembled in the first square groove, and the horizontal part of each upside-down L-shaped spring of other protection units is assembled in the second square groove of the lower protection assembly at the upper end of the upper protection assembly. T-shaped blocks matching the upside-down T-shaped grooves are respectively formed at the top of the two side edges of the U-shaped frame. A plurality of lower rubber blocks matching the upper rubber blocks and used for clamping cables are arranged on the inner bottom surface of the U-shaped frame.

[0011] Further, a plurality of upper hole plates are respectively arranged at the bottom of the two side surfaces of the upside-down U-shaped frame.

[0012] Further, a plurality of lower hole plates are respectively arranged at the top of the two side surfaces of the U-shaped frame, and the lower protection assembly further includes a plurality of positioning pins sequentially arranged in the upper hole plate and the lower hole plate.

[0013] Further, a plurality of springs are arranged on the inner bottom surface of the U-shaped frame, and each lower rubber block is arranged on one spring.

[0014] Further, the vertical part of the upside-down L-shaped spring is fixed to the outer side surface of the upside-down U-shaped frame. In the natural state, the center point of the horizontal part of the upside-down L-shaped spring is closer to the center of gravity of the upside-down U-shaped frame than the center point of the inner side surface of the vertical part.

[0015] The technical scheme has the following beneficial effects:

[0016] 1. The upper rubber block and the lower rubber block of the protection unit can better protect the cable and improve the safety and reliability.

[0017] 2. In the protection device, the upside-down L-shaped spring of the uppermost upper protection assembly is assembled in the first square groove. When the number of cable groups needs to be increased, the upside-down L-shaped spring of each protection unit except the uppermost protection unit is assembled in the second square groove of the upper protection unit. The protection device does not need to be connected by screwing or other structures, and has good scalability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 The overall perspective view of the embodiment of the application is shown.

[0019] Fig. 2 The exploded view of the top row and the protection unit of the embodiment of the application is shown.

[0020] Fig. 3 The separated schematic view of the upper protection assembly and the lower protection assembly of the embodiment of the application is shown. DETAILED DESCRIPTION

[0021] The technical scheme of the application will be further described in detail below with reference to the drawings.

[0022] AsFigs. 1-3 The protective device for low-voltage engineering shown includes a top row 1 and a protective unit.

[0023] The top row 1 is fixed under the ceiling of the low-voltage engineering construction area. The top row 1 is set in a direction parallel to the extension direction of the cable 4. Multiple first square grooves 11 are arrayed on both sides of the top row 1 along the extension direction.

[0024] A set of protective units is set along the extension direction of the top row 1 to protect several cables 4 set as a group. When there are multiple sets of cables 4 in the low-voltage engineering, multiple sets of protective units are set along the vertical direction.

[0025] The protective unit includes an upper protective component 2 and a lower protective component 3.

[0026] The upper protective component 2 includes an inverted U-shaped frame 21, with inverted L-shaped spring pieces 22 on both sides of the inverted U-shaped frame 21. Specifically, the vertical part of the inverted L-shaped spring piece 22 is fixed to the outer side of the inverted U-shaped frame 21. In its natural state, the center point of one end face of the horizontal part of the inverted L-shaped spring piece 22 is closer to the center of gravity of the inverted U-shaped frame 21 than the center point of the inner side of the vertical part. The horizontal part of the inverted L-shaped spring piece 22 can be manually pulled outward. When there is only one set of protective units, the horizontal part of the inverted L-shaped spring piece 22 is assembled in the first square groove 11. Several upper perforated plates 23 are also provided at the bottom of both sides of the inverted U-shaped frame 21. Inverted T-shaped grooves 24 extending along the top row 1 are also provided at the bottom of both sides of the inverted U-shaped frame 21. Upper rubber blocks 25 that match the cable 4 are also provided under the inner top surface of the inverted U-shaped frame 21.

[0027] The lower protective component 3 is assembled at the lower end of the upper protective component 2, including a U-shaped frame 31. The U-shaped frame 31 has a second square groove 32 on both sides, which is located below the first square groove 11. When the number of protective units is greater than one set, the horizontal part of the uppermost inverted L-shaped spring 22 is assembled in the first square groove 11. The horizontal parts of each other inverted L-shaped spring 22 are assembled in the second square groove 32 of the lower protective component 3 at the upper end of the upper protective component 2. The top of both sides of the U-shaped frame 31 is also provided with several lower perforated plates 33. The lower protective component 3 also includes several positioning pins 34 that are sequentially inserted into an upper perforated plate 23 and a lower perforated plate 33. The top of both sides of the U-shaped frame 31 is also provided with T-shaped blocks 35 that match the inverted T-shaped grooves 24. The inner bottom surface of the U-shaped frame 31 is provided with multiple sets of springs 36. Each set of springs 36 is provided with a lower rubber block 37 that matches the upper rubber block 25 and is used to clamp the cable 4.

[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A protective device for low-voltage electrical engineering, characterized in that, include: The top row (1) has multiple first square slots (11) arranged on both sides along the length direction of the top row (1); A set of protective units is arranged along the length of the top row (1) to protect several groups of cables (4). When there are multiple groups of cables (4) in a low-voltage project, multiple sets of protective units are arranged vertically. The protective units include: The upper protective component (2) includes an inverted U-shaped frame (21). Inverted L-shaped springs (22) are provided on both sides of the inverted U-shaped frame (21). When there is only one set of protective units, the horizontal part of the inverted L-shaped springs (22) is assembled in the first square groove (11). The bottom ends of both sides of the inverted U-shaped frame (21) are also provided with inverted T-shaped grooves (24) arranged along the length direction of the top row (1). The inner top surface of the inverted U-shaped frame (21) is also provided with upper rubber blocks (25) that match the cable (4). The lower protective component (3) is assembled at the lower end of the upper protective component (2), including a U-shaped frame (31). The U-shaped frame (31) has a second square groove (32) located below the first square groove (11) on both sides. When the number of protective units is greater than one set, the horizontal part of the uppermost inverted L-shaped spring (22) is assembled in the first square groove (11), and the horizontal parts of each other inverted L-shaped spring (22) are assembled in the second square groove (32) of the lower protective component (3) at the upper end of the upper protective component (2). The top of both sides of the U-shaped frame (31) is also provided with T-shaped blocks (35) that match the inverted T-shaped groove (24). The inner bottom surface of the U-shaped frame (31) is provided with multiple lower rubber blocks (37) that match the upper rubber blocks (25) and are used to clamp the cable (4).

2. The protective device for low-voltage engineering according to claim 1, characterized in that, The bottom of both sides of the inverted U-shaped frame (21) is also provided with several upper perforated plates (23).

3. The protective device for low-voltage engineering according to claim 2, characterized in that, The top of both sides of the U-shaped frame (31) is provided with several lower perforated plates (33), and the lower protective assembly (3) also includes several positioning pins (34) that are sequentially inserted into an upper perforated plate (23) and a lower perforated plate (33).

4. The protective device for low-voltage engineering according to claim 1, characterized in that, Multiple sets of springs (36) are provided on the inner bottom surface of the U-shaped frame (31), and each lower rubber block (37) is respectively set on a set of springs (36).

5. The protective device for low-voltage engineering according to claim 1, characterized in that, The vertical part of the inverted L-shaped spring (22) is fixed to the outer side of the inverted U-shaped frame (21). In its natural state, the center point of one end of the horizontal part of the inverted L-shaped spring (22) is closer to the center of gravity of the inverted U-shaped frame (21) than the center point of the inner side of the vertical part.

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