Anti-falling equipment for drainage inspection well

Abstract

The utility model relates to the technical field of inspection well falling prevention, and discloses a drainage inspection well falling prevention device which comprises a ring and a middle frame, the middle frame is arranged in the middle of the ring frame, a blocking net is fixed between the ring and the middle frame, a vertical rod vertically penetrates through the middle of the middle frame in a sliding mode, and a warning lamp is installed on the top of the vertical rod. The lower portion of the vertical rod penetrates into a vertical cylinder fixed to the bottom of the middle frame, a bottom plate capable of being arranged in the vertical cylinder in a sliding mode is fixed to the bottom of the vertical rod, a spring is arranged between the lower portion of the bottom plate and the vertical cylinder in a supporting mode, and a battery is arranged in the middle frame. According to the technical scheme, the middle frame is arranged in the middle of the device, the vertical rod supported and jacked up by the spring and the warning lamp are arranged, the warning lamp can be pressed down into a well when the well lid exists, the spring supports and jacks up the bottom plate, the vertical rod and the warning lamp only after the well lid is lost, the warning lamp is powered on to work, the anti-falling purpose is achieved, and the warning lamp can be used as a warning lamp. And a warning effect is achieved, and pedestrians are prevented from being hurt due to misstep when stepping on the well mouth carelessly.

Description

Technical Field

[0001] This utility model relates to the field of manhole anti-fall technology, specifically a drainage manhole anti-fall device. Background Technology

[0002] Drainage inspection wells are an important component of urban drainage systems, typically installed at the intersections or bends of drainage pipes. They mainly consist of three parts: a cover, a body, and a bottom, and are mostly made of concrete or precast materials. The primary function of inspection wells is to facilitate the inspection, cleaning, and maintenance of drainage pipes by staff, ensuring the smooth flow and normal operation of the pipes. In addition, they can connect different drainage pipes, playing a role in reducing pressure, tiered drainage, and establishing water seals. The existence of drainage inspection wells is crucial for maintaining the reliability and efficiency of urban drainage systems.

[0003] When the cover of a drainage inspection well is accidentally lost or opened, pedestrians may easily fall into the well. To prevent falls, existing technologies use structures such as fall protection nets. However, these structures only prevent pedestrians from falling to the bottom of the well and do not provide a warning. If a pedestrian accidentally steps onto the well opening, although they will not fall to the bottom, they are still likely to be injured. Therefore, we propose a fall protection device for drainage inspection wells. Utility Model Content

[0004] The purpose of this utility model is to provide a fall prevention device for drainage inspection wells. The device has a middle frame in the middle position, and a vertical rod supported and lifted by a spring and a warning light. When the well cover is present, the warning light will be pressed down into the well. Only when the well cover is lost will the spring lift the base plate, vertical rod and warning light, and the warning light will be powered on and work. In addition to achieving the purpose of fall prevention, it also has a warning function to prevent pedestrians from accidentally stepping on the well opening and getting injured. This solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drainage inspection well anti-fall device, comprising a ring and a middle frame, wherein the middle frame is located in the middle of the ring, and a baffle net is fixed between the ring and the middle frame; a vertical rod is slidably inserted through the middle of the middle frame, a warning light is installed at the top of the vertical rod, and the bottom of the vertical rod passes through a vertical cylinder fixed at the bottom of the middle frame, and a base plate is fixed at the bottom of the vertical rod and slidably placed inside the vertical cylinder, with a spring supporting the bottom of the base plate and the vertical cylinder; a battery is placed inside the middle frame, and two output contacts, respectively connected to the positive and negative terminals of the battery, are fixed at the bottom of the middle frame on both sides above the vertical cylinder, and two input contacts, respectively connected to the positive and negative terminals of the warning light, are fixed on both sides above the base plate, and wires for connecting the input contacts pass through the vertical rod and are connected to the warning light, and when the base plate slides to the top, the output contacts contact the input contacts.

[0006] By adopting the above technical solution, the ring support is placed inside the manhole at the upper position. After the manhole cover is closed, the warning light and vertical rod are pressed down to retract the warning light into the manhole. Only when the manhole cover is lost will the downward pressure on the warning light be released. Under the action of the spring support, the warning light rises to a certain height, and the input contact connected to the warning light makes contact with the output contact connected to the battery, so that the warning light works and has a warning effect.

[0007] Optionally, a vertical through-hole is provided in the middle of the frame, through which the vertical rod can slide through the frame.

[0008] Optionally, a sealing ring is fitted and fixed to the inner surface of the opening, and the inner surface of the sealing ring is in slidable contact with the vertical rod.

[0009] By adopting the above technical solution and setting the sealing ring, the opening can be sealed to prevent water from entering the vertical cylinder.

[0010] Optionally, a rubber pad is fixed to the top of the warning light, and the diameter of the rubber pad is larger than the diameter of the warning light.

[0011] By adopting the above technical solution, after the manhole cover is put on, the rubber pad presses down to resist the warning light, thus preventing the warning light from being worn.

[0012] Optionally, two lifting handles are fixed to the upper sides of the ring via connecting rods.

[0013] By adopting the above technical solution, the ring can be lifted by using the handle when it is necessary to lift it.

[0014] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0015] 1. The technical solution of this application has a middle frame in the middle of the device, and a vertical rod supported and lifted by a spring and a warning light. When the manhole cover is present, the warning light will be pressed down into the manhole. Only when the manhole cover is lost will the spring lift the base plate, vertical rod and warning light, and make the warning light powered on. In addition to achieving the purpose of preventing falls, it also has the function of warning, avoiding pedestrians from accidentally stepping on the manhole and getting injured due to falling into the well.

[0016] 2. The technical solution of this application achieves a good sealing effect by fixing a sealing ring on the inner surface of the perforation and placing the vertical rod in the position of sliding up and down inside the sealing ring, which can prevent water from entering the vertical cylinder. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1This is a schematic diagram of the overall structure of the anti-fall device for drainage inspection wells of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the middle frame and vertical rod of the drainage inspection well anti-fall device of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the drainage inspection well anti-fall device of this utility model during installation and use.

[0021] In the diagram: 1. Ring; 11. Lifting handle; 111. Connecting rod; 2. Middle frame; 21. Through hole; 211. Sealing ring; 22. Battery; 23. Output contact; 3. Baffle; 4. Vertical rod; 41. Warning light; 411. Rubber pad; 42. Base plate; 421. Input contact; 5. Vertical cylinder; 51. Spring. Detailed Implementation

[0022] Please see Figure 1-3 This utility model provides a technical solution: a drainage inspection well anti-fall device, including a ring 1 and a middle frame 2. The middle frame 2 is placed in the middle of the ring frame. A baffle 3 is fixed between the ring 1 and the middle frame 2. When in use, the ring 1 is placed inside the inspection well and supported and fixed. The baffle 3 can achieve the purpose of preventing falls. There are two lifting handles 11 fixed on both sides of the ring 1 through connecting rods 111. The ring 1 can be lifted by lifting handles 11 when it is put in and taken out.

[0023] A vertical through-hole 21 is provided in the middle of the middle frame 2, and a vertical rod 4 is slidably passed through the through-hole 21 in the middle of the middle frame 2. A warning light 41 is installed on the top of the vertical rod 4, and the bottom of the vertical rod 4 passes into a vertical cylinder 5 fixed at the bottom of the middle frame 2. A base plate 42 is fixed at the bottom of the vertical rod 4 and is slidably placed inside the vertical cylinder 5. A spring 51 is placed between the bottom plate 42 and the vertical cylinder 5 for support. After the ring 1 is placed inside the inspection well and fixed above it, when the well cover is closed, the warning light 41 will be pressed down, causing the warning light 41, the vertical rod 4, and the base plate 42 to all drop in height. At the same time, the spring 51 is compressed, so that the warning light 41 is retracted into the well opening. In order to avoid the well cover pressing down on the warning light 41 and causing it to wear out, a rubber pad 411 is fixed on the top of the warning light 41. The diameter of the rubber pad 411 is larger than the diameter of the warning light 41.

[0024] After the manhole cover is removed, the pressure on the warning light 41 is no longer exerted. Under the upward pressure of the spring 51 against the supporting base plate 42, both the vertical rod 4 and the warning light 41 rise to a height above the manhole opening. To activate the warning light 41, a battery 22 is placed inside the middle frame 2. Two output contacts 23, respectively connected to the positive and negative terminals of the battery 22, are fixed to the bottom of the middle frame 2 on both sides of the upper part of the vertical cylinder 5. Simultaneously, two output contacts 23, respectively connected to the positive and negative terminals of the warning light 41, are fixed to the upper sides of the base plate 42. The connected input contact 421 is used to connect the wire that passes through the vertical rod 4 and connects to the warning light 41. When the base plate 42 is supported by the spring 51 and slides to the top, the output contact 23 contacts the input contact 421, so that the warning light 41 will be connected to the battery 22 and work to achieve its warning effect. When the manhole cover presses down on the warning light 41, so that it, the vertical rod 4, and the base plate 42 are lowered, the output contact 23 and the input contact 421 are disconnected, so that the warning light 41 is no longer powered.

[0025] In order to ensure that the battery 22 can maintain power for a long time, a high-performance battery with leakage protection is preferred. It can maintain power for a long time and keep the device usable for a long time. A charging port connected to the battery 22 can also be provided on the bottom or top surface of the middle frame 2 so that the battery 22 can be charged and replenished during subsequent maintenance.

[0026] A sealing ring 211 is also attached and fixed to the inner surface of the opening 21. The inner surface of the sealing ring 211 is in slidable contact with the vertical rod 4. When the vertical rod 4 is placed inside the sealing ring 211 and moves up and down, it can seal the opening 21 and prevent water from leaking into the vertical cylinder 5.

[0027] In use, the device is lifted by the handle 11 and placed inside the inspection well for support and fixation. When the manhole cover is placed above the manhole opening, its bottom will abut against the rubber pad 411 on the surface of the warning light 41, pressing the warning light 41 and the vertical rod 4 downwards. The base plate 42 slides downwards in the vertical cylinder 5 and compresses the spring 51. If the manhole cover is removed or accidentally lost during use, the top of the warning light 41 will no longer be pressed down. Under the reset action of the spring 51, the base plate 42 will be supported and lifted upwards, while the vertical rod 4 and the warning light 41 will rise to a height above the manhole opening. Furthermore, under the action of the spring 51, the input contact 421 on the surface of the base plate 42 will contact the output contact 23 at the bottom of the middle frame 2, thereby enabling the warning light 41 to be connected to the battery 22 and illuminating the warning light 41 to provide a warning. In addition to using the net 3 to prevent falls, it can also serve as a warning to avoid stepping into a hole and getting injured. When the manhole cover is placed on top of the manhole again, the warning light 41 and the vertical rod 4 will be pressed down again, causing the base plate 42 to compress the spring 51 and lower its height. The output contact 23 and the input contact 421 will then disconnect again, and the warning light 41 will stop working.

Claims

1. A fall prevention device for a drainage inspection well, comprising a ring (1) and a middle frame (2), characterized in that: The middle frame (2) is placed in the middle of the ring frame, and a baffle (3) is fixed between the ring (1) and the middle frame (2); A vertical rod (4) is slidably passed through the middle of the frame (2). A warning light (41) is installed on the top of the vertical rod (4). The bottom of the vertical rod (4) is inserted into the vertical tube (5) fixed at the bottom of the frame (2). A bottom plate (42) is fixed at the bottom of the vertical rod (4) and is slidably placed inside the vertical tube (5). A spring (51) is placed between the bottom plate (42) and the vertical tube (5). The middle frame (2) contains a battery (22). Two output contacts (23) connected to the positive and negative terminals of the battery (22) are fixed at the bottom of the middle frame (2) on both sides above the vertical cylinder (5). Two input contacts (421) connected to the positive and negative terminals of the warning light (41) are fixed on both sides above the base plate (42). The wires used to connect the input contacts (421) pass through the vertical rod (4) and connect to the warning light (41). When the base plate (42) slides to the top, the output contacts (23) contact the input contacts (421).

2. The anti-fall device for drainage inspection wells according to claim 1, characterized in that: The middle frame (2) has a vertical through-hole (21) in the middle position, and the vertical rod (4) can slide through the middle frame (2) through the through-hole (21).

3. The anti-fall device for drainage inspection wells according to claim 2, characterized in that: A sealing ring (211) is fixedly attached to the inner surface of the opening (21), and the inner surface of the sealing ring (211) is in slidable contact with the vertical rod (4).

4. The anti-fall device for drainage inspection wells according to claim 1, characterized in that: A rubber pad (411) is fixed to the top of the warning light (41), and the diameter of the rubber pad (411) is larger than the diameter of the warning light (41).

5. The anti-fall device for drainage inspection wells according to claim 1, characterized in that: Two handles (11) are fixed to the upper sides of the ring (1) by connecting rods (111).

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