Novel municipal engineering safety protection device

Abstract

The utility model discloses a novel municipal engineering safety protection device, and particularly relates to the technical field of municipal safety, the novel municipal engineering safety protection device comprises a well seat body, and limiting holes are symmetrically formed in the upper end opening of the well seat body in pairs; the well lid body is installed on the hinge grooves in a hinged mode through hinge blocks, and sliding holes aligned with the four limiting holes are formed in the outer surface of the well lid body in a pairwise symmetrical mode; the limiting rods are mounted in the sliding holes in a sliding manner; and the bottom end of the circular piece is provided with a convex thread, and the outer surface of the circular piece is in contact with the inner side wall of the connecting hole. According to the novel municipal engineering safety protection device, the four limiting rods are installed on the well lid body in the sliding mode, the four limiting rods are installed in the limiting holes in the well base body in a limited mode through the sliding holes, and therefore the well lid body is limited on the well base body; and the well lid body is prevented from being jacked open by water due to rapid water flow in a sewer.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal safety, in particular to a novel municipal engineering safety protection device. Background Art

[0002] A municipal manhole cover is a lid that covers a road manhole. It is usually made of cast iron, concrete, plastic and other materials. The main function of the manhole cover is to protect the facilities in the manhole and the safety of pedestrians, while preventing debris from entering the manhole and causing blockage.

[0003] In order to facilitate opening and maintenance, the existing manhole covers are usually hingedly installed on the manholes. Whenever it rains heavily, the city streets become a flooded land. Due to the surge in drainage, the water flow in the pipe is so rapid that the manhole covers are pushed open by the water, thus posing a safety hazard to pedestrians and vehicles on the road. Utility Model Content

[0004] The main purpose of the utility model is to provide a novel municipal engineering safety protection device, which can lock the manhole cover at the manhole mouth to prevent it from being washed away in heavy rain.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A novel municipal engineering safety protection device comprises a manhole seat body, an upper port of the manhole seat body is provided with a hinge groove, and limit holes are symmetrically provided in pairs at the upper port of the manhole seat body; a manhole cover body, the manhole cover body is opposite to the axis of the manhole seat body, the manhole cover body is hingedly installed on the hinge groove through a hinge block, a connecting hole is provided at the axis of the top of the manhole cover body, and the outer surface of the manhole cover body is symmetrically provided with sliding holes aligned with four limit holes in pairs, and the other ends of the four slide holes are connected to the connecting holes; a limit rod, the limit rods are slidably installed in the slide hole; a circular part, the bottom end of the circular part is provided with an external convex thread, the inner bottom end of the connecting hole is provided with an internal concave thread matched with the external convex thread, and the outer surface of the circular part touches the inner side wall of the connecting hole.

[0007] Preferably, a first limiting ring is installed on the inner end wall of the well seat body, the first limiting ring is located at the lower part of the well cover body, and the top end of the first limiting ring is in contact with the bottom end of the well cover body.

[0008] Preferably, one end of the four limiting rods close to the outer surface of the circular member is an inclined surface.

[0009] Preferably, a screw groove is provided at the axis center of the top end of the circular member, and a handle is fixedly installed at the upper end of the screw groove along its horizontal direction.

[0010] Preferably, a sealing groove is provided on the first limiting ring, and a sealing gasket matched with the sealing groove is glued and installed on the end of the manhole cover body that contacts the first limiting ring.

[0011] Preferably, an opening hole is provided on the top of the manhole cover body away from its axis.

[0012] Preferably, a slider is slidably installed in each of the four limiting holes, a recoil spring is arranged in the limiting hole, and the first and second ends of the recoil spring are respectively abutted between the slider and the inner bottom wall of the limiting hole;

[0013] A second limiting ring is installed at the end of the limiting hole, the inner wall diameter of the second limiting ring is smaller than the outer wall diameter of the sliding block, and the inner wall diameter of the second limiting ring is the same as the size of the sliding hole.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the utility model, four limit rods are slidably installed on the manhole cover body, and the four limit rods are limitedly installed in the limit holes on the manhole seat body through sliding holes, so that the manhole cover body is limited on the manhole seat body to prevent the rapid water flow in the sewer from causing the manhole cover body to be pushed open by water.

[0016] 2. In the utility model, a limit hole is provided, and a return spring is provided in the limit hole. The return spring pushes the slider to push the limit rod. When the manhole cover body is opened, the limit rod can be retracted normally to prevent the limit rod from being stuck in the limit hole, causing the manhole cover body to be unable to open and close normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the well seat body and the first limiting ring in the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the manhole cover body and the hinge block in the utility model;

[0020] Figure 4 It is a schematic diagram of the side elevation structure of the circular member in the utility model;

[0021] Figure 5 It is a schematic diagram of the side elevation structure of the limiting rod in the utility model;

[0022] Figure 6 for Figure 2 Enlarged schematic diagram of the node at A in the middle.

[0023] In the figure: 1. well seat body; 11. first limiting ring; 111. sealing groove; 12. hinge groove; 13. limiting hole; 14. return spring; 15. slider; 16. second limiting ring; 2. well cover body; 21. connecting hole; 211. inner concave thread; 22. opening hole; 23. sliding hole; 24. hinge block; 3. round part; 31. screw groove; 311. handle; 32. outer convex thread; 4. limiting rod. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Embodiment 1

[0026] like Figure 1-Figure 5 As shown, a new type of municipal engineering safety protection device includes a manhole seat body 1, a hinge groove 12 is opened at the upper end of the manhole seat body 1, and limit holes 13 are symmetrically opened in pairs at the upper end of the manhole seat body 1, a manhole cover body 2, the manhole cover body 2 is axially opposite to the manhole seat body 1, the manhole cover body 2 is hingedly installed on the hinge groove 12 through a hinge block 24, a connecting hole 21 is opened at the axis of the top of the manhole cover body 2, and the outer surface of the manhole cover body 2 is symmetrically opened with sliding holes 23 aligned with four limit holes 13, and the other ends of the four sliding holes 23 are all connected to the connecting hole 21, and the limit rod 4 is slidably installed in the sliding hole 23, a circular member 3, the bottom end of the circular member 3 is opened with an external convex thread 32, and the inner bottom end of the connecting hole 21 is opened with an internal concave thread 211 adapted to the external convex thread 32, and the outer surface of the circular member 3 is in contact with the inner side wall of the connecting hole 21;

[0027] By setting the sliding holes 23 to be connected with the connecting holes 21, the limiting rods 4 are slidably installed in the sliding holes 23, and the circular member 3 is inserted into the connecting hole 21. The circular member 3 pushes the limiting rods 4 to slide into the limiting hole 13 through the connecting hole 21, so that the manhole cover body 2 can be limited on the manhole seat body 1. When the water flow is rapid and the manhole cover is pushed open by the water, the circular member 3 is threadedly connected with the inner concave thread 211 of the inner bottom wall of the connecting hole 21 through the outer convex thread 32 at the bottom thereof, so as to prevent the circular member 3 from being exposed to the outside and lost.

[0028] Furthermore, a first limiting ring 11 is installed on the inner end wall of the well seat body 1. The first limiting ring 11 is located at the lower part of the well cover body 2. The top end of the first limiting ring 11 contacts the bottom end of the well cover body 2. The first limiting ring 11 is provided to limit the well cover body 2 at the upper port of the well seat body 1.

[0029] Furthermore, the ends of the four limit rods 4 close to the outer surface of the circular part 3 are all inclined. By setting the ends of the limit rods 4 close to the outer surface of the circular part 3 to be inclined, when the circular part 3 is inserted into the connecting hole 21, because the end surface close to the limit rod 4 is inclined, it is convenient for the circular part 3 to push the limit rod 4 when it slides downward.

[0030] Furthermore, a screw groove 31 is opened at the axis center of the top of the circular member 3, and a handle 311 is fixedly installed at the upper end of the screw groove 31 along its horizontal direction. By arranging the handle 311 to be installed in the screw groove 31, the handle 311 is prevented from protruding from the ground and forming an obstacle on the road surface.

[0031] Furthermore, a sealing groove 111 is provided on the first limiting ring 11, and a sealing gasket matching the sealing groove 111 is glued and installed on the end of the manhole cover body 2 that contacts the first limiting ring 11; by providing the sealing groove 111, odor in the pipeline is prevented from emitting from the connection between the manhole cover body 2 and the well seat body 1.

[0032] Furthermore, an opening hole 22 is provided on the top of the manhole cover body 2 away from the axis thereof. By providing the opening hole 22 , it is convenient for maintenance personnel to open the manhole cover body 2 later.

[0033] Embodiment 2

[0034] like Figure 6 As shown, a slider 15 is slidably installed in each of the four limiting holes 13, a recoil spring 14 is arranged in the limiting hole 13, the head and tail ends of the recoil spring 14 are respectively abutted between the slider 15 and the inner bottom wall of the limiting hole 13, and a second limiting ring 16 is installed at the end of the limiting hole 13, the inner wall diameter of the second limiting ring 16 is smaller than the outer wall diameter of the slider 15, and the inner wall diameter of the second limiting ring 16 is the same as the size of the sliding hole 23;

[0035] When opening the manhole cover body 2, in order to ensure that the limit rod 4 can pop out from the limit hole 13 and contact it for limit, the circular part 3 is pulled out first when opening it. A return spring 14 is provided in the limit hole 13, and the return spring 14 pushes the slider 15 to push the limit rod 4, thereby ensuring that the limit rod 4 can be retracted normally.

[0036] The working principle of the utility model is as follows: after closing the manhole cover body 2, the circular piece 3 is inserted into the connecting hole 21, and the circular piece 3 pushes the limiting rod 4 so that the other end of the limiting rod 4 extends into the limiting hole 13, so that the manhole cover body 2 is limited at the upper port of the well seat body 1, and the circular piece 3 is screwed, and the circular piece 3 is threadedly connected with the inner concave thread 211 in the connecting hole 21 through the outer convex thread 32 so that the circular piece 3 is limited in the connecting hole 21, conversely, the circular piece 3 is screwed, and after the circular piece 3 is pulled out, the return spring 14 pushes the slider 15 so that the limiting rod 4 can be pushed out of the limiting hole 13 by the slider 15, thereby releasing the limit of the manhole cover body 2 on the well seat body 1.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A new type of municipal engineering safety protection device, characterized by ,include: A well seat body (1), wherein an upper end of the well seat body (1) is provided with a hinge groove (12), and two symmetrical limiting holes (13) are provided at the upper end of the well seat body (1); A manhole cover body (2), wherein the manhole cover body (2) and the manhole seat body (1) are axially opposite to each other, the manhole cover body (2) is hingedly mounted on the hinge groove (12) via a hinge block (24), a connecting hole (21) is provided at the axis of the top of the manhole cover body (2), and sliding holes (23) aligned with the four limiting holes (13) are symmetrically provided on the outer surface of the manhole cover body (2), and the other ends of the four sliding holes (23) are all connected to the connecting hole (21); A limiting rod (4), wherein the limiting rod (4) is slidably mounted in the sliding hole (23); A circular member (3), wherein the bottom end of the circular member (3) is provided with an external convex thread (32), the inner bottom end of the connecting hole (21) is provided with an internal concave thread (211) adapted to the external convex thread (32), and the outer surface of the circular member (3) contacts the inner side wall of the connecting hole (21).

2. A novel municipal engineering safety protection device according to claim 1, characterized in that: A first limiting ring (11) is installed on the inner end wall of the well seat body (1), and the first limiting ring (11) is located at the lower part of the well cover body (2), and the top end of the first limiting ring (11) is in contact with the bottom end of the well cover body (2).

3. A novel municipal engineering safety protection device according to claim 1, characterized in that: One end of the four limiting rods (4) close to the outer surface of the circular member (3) is an inclined surface.

4. A novel municipal engineering safety protection device according to claim 1, characterized in that: A screw groove (31) is provided at the axis center of the top end of the circular member (3), and a handle (311) is fixedly mounted at the upper end of the screw groove (31) along its horizontal direction.

5. A novel municipal engineering safety protection device according to claim 2, characterized in that: A sealing groove (111) is provided on the first limiting ring (11), and a sealing gasket matching the sealing groove (111) is glued and installed on the end of the manhole cover body (2) in contact with the first limiting ring (11).

6. A novel municipal engineering safety protection device according to claim 1, characterized in that: An opening hole (22) is provided on the top of the manhole cover body (2) away from its axis.

7. A novel municipal engineering safety protection device according to claim 1, characterized in that: Slide blocks (15) are slidably installed in the four limiting holes (13), and a return spring (14) is arranged in the limiting hole (13), and the head and tail ends of the return spring (14) are respectively abutted between the slide block (15) and the inner bottom wall of the limiting hole (13); A second limiting ring (16) is installed at the end of the limiting hole (13), the inner wall diameter of the second limiting ring (16) is smaller than the outer wall diameter of the sliding block (15), and the inner wall diameter of the second limiting ring (16) is the same as the size of the sliding hole (23).

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