Dustproof device for cable trench

Abstract

The utility model discloses a cable trench dustproof device, which comprises a cover plate, a rectangular groove, a ventilation groove, a rotating plate, a mounting frame, a filter layer, a rotating structure and a limiting structure, and is characterized in that the rotating structure and the limiting structure are arranged, a user pokes a poking plate in advance, and the poking plate drives a clamping block to be separated from a clamping groove through a connecting block; and two groups of torsional springs are used for driving a rotating shaft to rotate respectively, so that the rotating shaft drives the rotating plate to automatically rotate by 90 degrees, the effect of conveniently picking up the cover plate at any position through a ventilation groove is achieved, maintenance is facilitated, and the surface of a filter layer is conveniently cleaned or the filter layer is conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the field related to cable trenches, in particular to a dust prevention device for a cable trench. Background Art

[0002] The cable trench is an underground pipeline used for laying and replacing power or telecommunication cable facilities. It is also the enclosure structure for the laid cable facilities. There are rectangular, circular, arched and other pipeline structure forms.

[0003] The Chinese patent with the patent number CN207719782U discloses "A Breathable Dustproof Cable Trench Cover", which takes into account both dustproof and breathable functions by setting mutually matching overlapping structures at both ends of the breathable dustproof cable trench cover and making adjacent breathable dustproof cable trench covers contact each other through elastic blocks. During the use of this product, dust will gather at the overlap and will not enter the cable trench. At the same time, the use of elastic blocks ensures good atmospheric exchange between the inside of the cable trench and the outside world, ensuring internal ventilation and heat dissipation;

[0004] Although the above-mentioned breathable dustproof cable trench cover has certain advantages in dustproof ability, the cover is arranged through an overlapping structure, which is not conducive to the individual disassembly and assembly of the cover, and it is not convenient for the staff to inspect the specific position of the cable trench, and it is not convenient to clean the dust and impurities on the upper side of the cover. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a cable trench dust prevention device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cable trench dust prevention device, comprising a cover plate, a rectangular groove, a ventilation groove, a rotating plate, a mounting frame, a filter layer, a rotating structure and a limiting structure, a rectangular groove is opened in the middle of the upper end surface of the cover plate, a ventilation groove is opened on the lower side of the rectangular groove, a rotating plate is arranged on the left side of the inner wall of the rectangular groove, a mounting frame is installed on the right side of the rotating plate, a filter layer is installed on the inner wall of the mounting frame, a rotating structure is arranged on the front and back of the left side of the rotating plate, the middle part of the front end surface of the rotating plate is connected to the limiting structure, the rotating structure comprises a circular groove, a rotating shaft and a torsion spring, the inner wall of the circular groove is rotatably connected to the rotating plate through the rotating shaft, a torsion spring is installed on the outer side of the rotating shaft, and the torsion spring is rotatably connected to the cover plate, and the circular groove is respectively opened at the front and back ends of the left side of the rotating plate.

[0007] Optionally, the limiting structure includes a sliding groove, a limiting groove, a limiting block, a spring, a connecting block and a clamping block, the front side of the sliding groove is opened, the inner rear side of the limiting groove is arranged with a limiting block, the front end face of the limiting block is elastically connected to the limiting groove through a spring, the rear end face of the limiting block is installed with a connecting block, and the connecting block slides along the inner wall of the sliding groove, the rear end face of the connecting block is installed with a clamping block, and the rear end of the clamping block passes through the cover plate and is connected with the rotating plate, and the sliding groove is opened on the left front side of the upper end face of the cover plate.

[0008] Optionally, the length and width of the rectangular groove are greater than the air-permeable groove, which is conducive to placing the installation frame on the upper end surface of the inner wall of the rectangular groove.

[0009] Optionally, the left end surface of the rotating plate is semicircular, so that the rotating plate can be rotated by the rotating shaft.

[0010] Optionally, a slot is provided in the middle of the front end surface of the rotating plate, and the inner wall of the slot is in contact with the card block, which is conducive to the card block limiting the rotating plate by using the slot.

[0011] Optionally, a toggle plate is provided on the left side of the upper end surface of the connecting block, so as to facilitate the connection block to be moved by the toggle plate.

[0012] Optionally, the distance that the toggle plate slides forward is consistent with the distance that the card block and the card slot are separated, which is conducive to releasing the limit on the rotating plate by toggling the toggle plate.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses a cable trench dust prevention device, which is provided with a rotating structure and a limiting structure. When a user first toggles an toggle plate, the toggle plate drives a clamping block and a clamping slot to be separated through a connecting block, so that the rotation plate releases the limit, and two groups of torsion springs are used to respectively drive the rotating shaft to rotate, so that the rotating shaft drives the rotating plate to automatically rotate ninety degrees, so that the cover plate at any position can be easily picked up through the air permeable slot, which is beneficial for maintenance, and is convenient for cleaning the surface of the filter layer, or replacing the filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a top view of the structure of the utility model;

[0018] Figure 4 This utility model structure Figure 3 A local enlarged view of point A;

[0019] Figure 5 It is a left view of the structure of the utility model;

[0020] Figure 6 This utility model structure Figure 5 A partial enlarged view of point B.

[0021] Among them: cover plate -1, rectangular groove -2, ventilation groove -3, rotating plate -4, installation frame -5, filter layer -6, rotating structure -7, limiting structure -8, circular groove -71, rotating shaft -72, torsion spring -73, sliding groove -81, limiting groove -82, limiting block -83, spring -84, connecting block -85, clamping block -86, toggle plate -87. DETAILED DESCRIPTION

[0022] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0023] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides a cable trench dust prevention device, including a cover plate 1, a rectangular groove 2, a venting groove 3, a rotating plate 4, a mounting frame 5, a filter layer 6, a rotating structure 7 and a limiting structure 8. A rectangular groove 2 is provided in the middle of the upper end surface of the cover plate 1, a venting groove 3 is provided on the lower side of the rectangular groove 2, a rotating plate 4 is provided on the left side of the inner wall of the rectangular groove 2, a mounting frame 5 is installed on the right side of the rotating plate 4, a filter layer 6 is installed on the inner wall of the mounting frame 5, a rotating structure 7 is provided on the front and rear sides of the left side of the rotating plate 4, and the middle of the front end surface of the rotating plate 4 and the limiting structure are connected. The rotating structure 7 is connected to the positioning structure 8, the rotating structure 7 includes a circular groove 71, a rotating shaft 72 and a torsion spring 73. The inner wall of the circular groove 71 is rotatably connected to the rotating plate 4 through the rotating shaft 72. The outer side of the rotating shaft 72 is installed with a torsion spring 73, and the torsion spring 73 is rotatably connected to the cover plate 1. The circular groove 71 is respectively opened at the front and rear ends of the left side of the rotating plate 4. The length and width of the rectangular groove 2 are greater than the air-permeable groove 3, which is conducive to placing the installation frame 5 on the upper end surface of the inner wall of the rectangular groove 2. The left end surface of the rotating plate 4 is semicircular, which is convenient for the rotating plate 4 to rotate using the rotating shaft 72.

[0024] See also Figure 5 and Figure 6The utility model provides a cable trench dust prevention device, the limiting structure 8 includes a sliding groove 81, a limiting groove 82, a limiting block 83, a spring 84, a connecting block 85 and a clamping block 86. The front side of the sliding groove 81 is provided with a limiting groove 82, the inner rear side of the limiting groove 82 is provided with a limiting block 83, the front end surface of the limiting block 83 is elastically connected to the limiting groove 82 through a spring 84, the rear end surface of the limiting block 83 is installed with a connecting block 85, and the connecting block 85 slides along the inner wall of the sliding groove 81, the rear end surface of the connecting block 85 is installed with a clamping block 86, and the clamping block 86 The rear end passes through the cover plate 1 and is connected to the rotating plate 4. The sliding groove 81 is opened on the left front side of the upper end surface of the cover plate 1. A card slot is opened in the middle of the front end surface of the rotating plate 4, and the inner wall of the card slot is in contact with the card block 86, which is beneficial for the card block 86 to limit the rotating plate 4 by using the card slot. A toggle plate 87 is set on the left side of the upper end surface of the connecting block 85, which is convenient for driving the connecting block 85 to move by toggle plate 87. The forward sliding distance of the toggle plate 87 is consistent with the separation distance of the card block 86 and the card slot, which is beneficial for releasing the limit of the rotating plate 4 by toggling the toggle plate 87.

[0025] Here’s how it works:

[0026] First, the new device is placed in the required cable trenches one by one to prevent dust;

[0027] Second, the user pushes the toggle plate 87 forward, and the toggle plate 87 drives the connecting block 85 to move forward, and the connecting block 85 slides along the sliding groove 81, so that the limit block 83 is pushed forward, and the spring 84 is squeezed by the limit block 83 and contracts, and the connecting block 85 drives the card block 86 to separate from the card slot of the rotating plate 4. When the user moves the front end surface of the toggle plate 84 to fit with the sliding groove 81, the distance that the toggle plate 87 slides forward is consistent with the distance that the card block 86 separates from the card slot, and the card block 86 separates from the card slot.

[0028] Third, the block 86 releases the limit on the rotating plate 4, and the rotating plate 4 drives the two sets of rotating shafts 72 to rotate through the two sets of torsion springs 73, so that the rotating plate 4 automatically rotates ninety degrees. The user can lift the cover plate 1 upwards through the air permeable groove 3, which is convenient for inspecting the specific position of the cable trench, and after long-term use, the user can clean or replace the filter layer 6 conveniently. The user presses the filter layer 6 to fit the rectangular groove 2, and the block 86 automatically snaps into the groove, thereby limiting the rotating plate 4, achieving the effect of dustproofing the cable trench, and the use of the air permeable groove 3 is conducive to ventilation of the cable trench.

[0029] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0030] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0031] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cable trench dust prevention device, characterized in that: The invention comprises a cover plate (1), a rectangular groove (2), a venting groove (3), a rotating plate (4), a mounting frame (5), a filter layer (6), a rotating structure (7) and a limiting structure (8); a rectangular groove (2) is provided in the middle of the upper end surface of the cover plate (1); a venting groove (3) is provided on the lower side of the rectangular groove (2); a rotating plate (4) is provided on the left side of the inner wall of the rectangular groove (2); a mounting frame (5) is installed on the right side of the rotating plate (4); a filter layer (6) is installed on the inner wall of the mounting frame (5); and the rotating plate (4) A rotating structure (7) is provided at the front and rear of the left side, the middle of the front end surface of the rotating plate (4) is connected to the limiting structure (8), the rotating structure (7) comprises a circular groove (71), a rotating shaft (72) and a torsion spring (73), the inner wall of the circular groove (71) is rotatably connected to the rotating plate (4) via the rotating shaft (72), a torsion spring (73) is installed on the outer side of the rotating shaft (72), and the torsion spring (73) is rotatably connected to the cover plate (1), and the circular groove (71) is respectively opened at the front and rear ends of the left side of the rotating plate (4).

2. A cable trench dust prevention device according to claim 1, characterized in that: The limiting structure (8) comprises a sliding groove (81), a limiting groove (82), a limiting block (83), a spring (84), a connecting block (85) and a clamping block (86); the front side of the sliding groove (81) is provided with a limiting groove (82); the inner rear side of the limiting groove (82) is provided with a limiting block (83); the front end surface of the limiting block (83) is elastically connected to the limiting groove (82) through a spring (84); the rear end surface of the limiting block (83) is provided with a connecting block (85), and the connecting block (85) slides along the inner wall of the sliding groove (81); the rear end surface of the connecting block (85) is provided with a clamping block (86), and the rear end of the clamping block (86) penetrates the cover plate (1) and is connected to the rotating plate (4); the sliding groove (81) is provided at the left front side of the upper end surface of the cover plate (1).

3. A cable trench dust prevention device according to claim 1, characterized in that: The length and width of the rectangular groove (2) are greater than those of the air-permeable groove (3).

4. A cable trench dust prevention device according to claim 1, characterized in that: The left end surface of the rotating plate (4) is semicircular.

5. A cable trench dust prevention device according to claim 2, characterized in that: A clamping groove is provided in the middle of the front end surface of the rotating plate (4), and the inner wall of the clamping groove is in contact with the clamping block (86).

6. A cable trench dust prevention device according to claim 2, characterized in that: A toggle plate (87) is provided on the left side of the upper end surface of the connecting block (85).

7. A cable trench dust prevention device according to claim 6, characterized in that: The distance that the shifting plate (87) slides forward is consistent with the distance that the clamping block (86) and the clamping slot are separated.

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