Quick-opening manhole cover device for equipment manhole

Abstract

The utility model relates to the technical field of manhole covers, and discloses a quick-opening manhole cover device for an equipment manhole, which comprises a manhole cover mounting seat, the side wall of the manhole cover mounting seat is hinged with a manhole cover through a connecting rod, a supporting mechanism is arranged above the manhole cover mounting seat, and the manhole cover mounting seat is hinged with the manhole cover through a connecting rod. A promoting mechanism is arranged above the manhole cover mounting base, the positioning groove is formed in the upper surface of the manhole cover mounting base, a protruding strip is fixedly installed on the inner wall of the bottom end of the positioning groove, and an adjusting groove is formed in the lower surface of the manhole cover. According to the quick-opening manhole cover device for the equipment manhole, when a manhole cover is opened, limitation on a supporting plate can be relieved through a threaded rod, the supporting plate rotates on the surface of a straight rod under the action of a torsional spring, the position of the manhole cover and the position of the supporting plate are adjusted, the bottom end of the supporting plate is placed in a convex strip, and the manhole cover is opened. And therefore, the manhole cover is kept stable, and people can conveniently go out after entering the manhole cover mounting seat.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, specifically a quick-opening manhole cover device for use on equipment manholes. Background Technology

[0002] A manhole is an opening structure used for personnel to enter and exit equipment for installation, maintenance and safety inspection. A manhole cover is a general term for a cover plate and its fixing accessories that are installed on the manhole and have sealing performance. Manhole covers can be divided into protruding type and embedded type according to whether they are higher than the surface of the opening after installation.

[0003] According to a public notice (No. CN220843871U), a quick-opening device for a manhole cover is provided in the above application. The storage slot is equipped with a handle. When the user opens or closes the cover, he / she only needs to hold the handle to turn the cover. When the cover is not needed to be turned, the handle can automatically return to the storage slot due to the elastic force of the torsion spring. The user does not need to store the handle again, which saves time and is convenient and quick.

[0004] However, in actual use, when people need to enter the manhole cover mounting base to perform their work, the manhole cover does not have a corresponding limiting mechanism. Due to aging after long-term use, the manhole cover may close, making it inconvenient for people to come out. In view of this, we propose a quick-opening manhole cover device for equipment manholes. Utility Model Content

[0005] The purpose of this invention is to provide a quick-opening manhole cover device for equipment manholes, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-opening manhole cover device for equipment manholes, comprising a manhole cover mounting base, wherein a manhole cover is hinged to the side wall of the manhole cover mounting base via a connecting rod, a support mechanism is provided above the manhole cover mounting base, and a promoting mechanism is provided above the manhole cover mounting base, wherein the support mechanism includes:

[0007] A positioning groove is formed on the upper surface of the manhole cover mounting base. A protruding strip is fixedly installed on the inner wall of the bottom end of the positioning groove. An adjustment groove is formed on the lower surface of the manhole cover. A straight rod is fixedly installed on the inner wall of the adjustment groove. One end of a torsion spring is fixedly connected to the arc surface of the straight rod. One end of the arc surface of the straight rod is fixedly connected to the inner wall of the support plate.

[0008] The support plate has a threaded hole on its side wall, the manhole cover has a through hole on its side wall, and a threaded rod is threadedly connected to the inner wall of the threaded hole.

[0009] Preferably, the promoting mechanism includes a support block, which is fixedly installed on the outer wall of the support plate. A round block is fixedly installed on the arc surface of the support block, a rubber sleeve is fixedly installed on the arc surface of the support block, and a threaded strip is fixedly installed on the arc surface of the rubber sleeve.

[0010] Preferably, there are two support blocks, which are arranged in a mirror image at both ends of the outer wall of the support plate. Multiple support blocks facilitate the support of the support plate.

[0011] Preferably, the shape of the adjustment groove is adapted to the shape of the support plate, so that the support plate can be stored inside the adjustment groove, and the use of the manhole cover is not affected when the support plate is stored.

[0012] Preferably, the number of protrusions is set to several, and the several protrusions are fixedly installed in a linear array on the inner wall of the positioning groove. The arrangement of multiple protrusions facilitates the fixing of the bottom end of the support plate.

[0013] Preferably, the side wall of the support plate is provided with a rotating hole, the diameter of which is adapted to the diameter of the straight rod, the support plate is sleeved on the arc surface of the straight rod, and the support plate shell rotates on the arc surface of the straight rod.

[0014] Preferably, the threaded rod passes through the through hole and is then threaded onto the inner wall of the threaded hole, thereby fixing the support plate.

[0015] Compared with the prior art, this utility model provides a quick-opening manhole cover device for equipment manholes, which has the following beneficial effects:

[0016] 1. This quick-opening manhole cover device for equipment manholes is equipped with a support mechanism. When the manhole cover is opened, the threaded rod can release the restriction on the support plate. Under the action of the torsion spring, the support plate rotates on the surface of the straight rod, adjusting the position of the manhole cover and the position of the support plate. The bottom end of the support plate is placed inside the convex strip, thereby maintaining the stability of the manhole cover and facilitating people to enter the manhole cover mounting base and exit.

[0017] 2. This quick-opening manhole cover device for equipment manholes, through the setting of a promotion mechanism, the support block and multiple round blocks, make the bottom end of the support plate better engage in the gap between multiple protrusions, ensuring the stability of the support plate. At the same time, the setting of rubber sleeve and threaded strip increases the contact area between the bottom end of the support plate and the protrusions, increasing friction and further ensuring stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2This is a schematic diagram of the manhole cover mounting base of this utility model.

[0020] Figure 3 This is a partial exploded view of the threaded rod structure of this utility model;

[0021] Figure 4 This is a partial explosion diagram of the straight rod structure of this utility model;

[0022] Figure 5 This is a schematic diagram of a partial explosion of the rubber sleeve structure of this utility model.

[0023] In the diagram: 1. Manhole cover mounting base; 2. Manhole cover; 3. Support mechanism; 301. Positioning groove; 302. Raised strip; 303. Adjustment groove; 304. Straight rod; 305. Torsion spring; 306. Support plate; 307. Threaded hole; 308. Through hole; 309. Threaded rod; 4. Promoting mechanism; 401. Support block; 402. Round block; 403. Rubber sleeve; 404. Threaded strip. Detailed Implementation

[0024] like Figures 1-4 As shown, this utility model provides a technical solution: a quick-opening manhole cover device for equipment manholes, including a manhole cover mounting base 1, a manhole cover 2 hinged to the side wall of the manhole cover mounting base 1 via a connecting rod, a support mechanism 3 provided above the manhole cover mounting base 1, and a promoting mechanism 4 provided above the manhole cover mounting base 1. The support mechanism 3 includes a positioning groove 301, a protrusion 302, an adjustment groove 303, a straight rod 304, a torsion spring 305, a support plate 306, a threaded hole 307, a through hole 308, and a threaded rod 309.

[0025] In one embodiment of this utility model, a positioning groove 301 is formed on the upper surface of the manhole cover mounting base 1. A protrusion 302 is fixedly installed on the inner wall of the bottom end of the positioning groove 301. An adjustment groove 303 is formed on the lower surface of the manhole cover 2. A straight rod 304 is fixedly installed on the inner wall of the adjustment groove 303. One end of a torsion spring 305 is fixedly connected to the arc surface of the straight rod 304. The torsion spring 305 is fixedly connected to the inner wall of the support plate 306. A threaded hole 307 is formed on the side wall of the support plate 306. A through hole 308 is formed on the side wall of the manhole cover 2. A threaded rod 309 is threadedly connected to the inner wall of the threaded hole 307.

[0026] In addition, the side wall of the support plate 306 is provided with a threaded hole 307, the side wall of the manhole cover 2 is provided with a through hole 308, the inner wall of the threaded hole 307 is threaded with a threaded rod 309, and there are two support blocks 401. The two support blocks 401 are distributed in a mirror image at both ends of the outer wall of the support plate 306. The multiple support blocks 401 facilitate the support of the support plate 306.

[0027] In this embodiment of the utility model, the shape of the adjusting groove 303 is adapted to the shape of the support plate 306, so that the support plate 306 can be stored inside the adjusting groove 303, so that the use of the manhole cover 2 is not affected when the support plate 306 is stored. A number of protrusions 302 are provided, and the protrusions 302 are fixedly installed in a linear array on the inner wall of the positioning groove 301. The arrangement of multiple protrusions 302 facilitates the fixing of the bottom end of the support plate 306. A rotating hole is provided on the side wall of the support plate 306. The diameter of the rotating hole is adapted to the diameter of the straight rod 304. The support plate 306 is sleeved on the arc surface of the straight rod 304. The support plate 306 rotates on the arc surface of the straight rod 304. The threaded rod 309 passes through the through hole 308 and is then threadedly connected to the inner wall of the threaded hole 307, thereby fixing the support plate 306.

[0028] In this utility model, when the manhole cover 2 is opened, the restriction on the support plate 306 can be released by the threaded rod 309. The support plate 306 rotates on the surface of the straight rod 304 under the action of the torsion spring 305, adjusting the position of the manhole cover 2 and the position of the support plate 306. The bottom end of the support plate 306 is placed inside the protrusion 302, so that the support plate 306 supports the manhole cover 2, thereby maintaining the stability of the manhole cover 2 and making it convenient for people to enter the manhole cover mounting base 1 and then exit.

[0029] Furthermore, the support block 401, in conjunction with multiple round blocks 402, allows the bottom end of the support plate 306 to better engage with the gaps between the multiple protrusions 302, ensuring the stability of the support plate 306. Simultaneously, the rubber sleeve 403 and threaded strip 404 increase the contact area between the bottom end of the support plate 306 and the protrusions 302, increasing friction and further ensuring stability.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A quick-opening manhole cover device for use on equipment manholes, comprising a manhole cover mounting base (1), wherein a manhole cover (2) is hinged to the side wall of the manhole cover mounting base (1) via a connecting rod, characterized in that: A support mechanism (3) is provided above the manhole cover mounting base (1), and a promoting mechanism (4) is provided above the manhole cover mounting base (1). The support mechanism (3) includes: A positioning groove (301) is provided on the upper surface of the manhole cover mounting base (1). A protrusion (302) is fixedly installed on the inner wall of the bottom end of the positioning groove (301). An adjustment groove (303) is provided on the lower surface of the manhole cover (2). A straight rod (304) is fixedly installed on the inner wall of the adjustment groove (303). One end of a torsion spring (305) is fixedly connected to the arc surface of the straight rod (304). The torsion spring (305) is fixedly connected to the inner wall of the support plate (306) at one end of the arc surface of the straight rod (304). The support plate (306) has a threaded hole (307) on its side wall, and the manhole cover (2) has a through hole (308) on its side wall. The inner wall of the threaded hole (307) is threaded with a threaded rod (309).

2. A quick-opening manhole cover device for equipment manholes according to claim 1, characterized in that: The promoting mechanism (4) includes a support block (401), which is fixedly installed on the outer wall of the support plate (306). A round block (402) is fixedly installed on the arc surface of the support block (401), a rubber sleeve (403) is fixedly installed on the arc surface of the support block (401), and a threaded strip (404) is fixedly installed on the arc surface of the rubber sleeve (403).

3. A quick-opening manhole cover device for equipment manholes according to claim 2, characterized in that: The number of the support blocks (401) is set to two, and the two support blocks (401) are arranged in a mirror image at both ends of the outer wall of the support plate (306).

4. A quick-opening manhole cover device for equipment manholes according to claim 1, characterized in that: The shape of the adjustment groove (303) is adapted to the shape of the support plate (306).

5. A quick-opening manhole cover device for equipment manholes according to claim 1, characterized in that: The number of the protrusions (302) is set to a certain number, and the protrusions (302) are fixedly installed in a linear array on the inner wall of the positioning groove (301).

6. A quick-opening manhole cover device for equipment manholes according to claim 1, characterized in that: The side wall of the support plate (306) is provided with a rotating hole, the diameter of which is adapted to the diameter of the straight rod (304), and the support plate (306) is sleeved on the arc surface of the straight rod (304).

7. A quick-opening manhole cover device for equipment manholes according to claim 1, characterized in that: The threaded rod (309) passes through the through hole (308) and is then threaded onto the inner wall of the threaded hole (307).

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