Municipal engineering wellhead construction protection device

By designing a protective device for manhole construction in municipal engineering, and utilizing a combination of rotating and sliding clamps, stable fixing and efficient warning of manholes of different sizes are achieved. This solves the problems of unstable fixing and poor warning effect of existing devices, and improves construction safety and convenience.

CN224260046UActive Publication Date: 2026-05-19QIQIHAR HONGYUAN MUNICIPAL ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QIQIHAR HONGYUAN MUNICIPAL ENGINEERING CO LTD
Filing Date
2025-06-12
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing protective devices for manholes in municipal engineering projects cannot provide full coverage protection for manholes of different sizes, have poor warning effects, are prone to tipping over or shifting during collisions, are cumbersome to install and remove, and take up space.

Method used

A protective device for manhole construction in municipal engineering was designed, which includes a warning mechanism and a fixing mechanism that are easy to store and quickly deploy. The device is stably fixed by rotating and sliding clamps that fit against the inner wall of the manhole, and provides efficient warning by flipping the warning light panel.

Benefits of technology

It achieves stable fixation and efficient warning of manhole openings of different sizes, prevents personnel from falling, simplifies the installation and disassembly process of the device, and improves safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of municipal engineering wellhead construction protection, in particular to a municipal engineering wellhead construction protection device which comprises a protection cover, a warning mechanism convenient to store and rapidly unfold for warning is arranged on the outer surface of the protection cover, and a fixing mechanism convenient for fixing the protection cover on inspection wells with different inner diameters is arranged in the protection cover. The connecting plate is fixedly connected to one side of the inner wall of the protective cover, the rotary clamping plate is rotationally connected to the inner end of the connecting plate, and the threaded cylinder is fixedly connected to the other side of the inner wall of the protective cover. According to the municipal engineering wellhead construction protection device, a connecting plate, a rotary clamping plate and a sliding clamping plate are arranged at the bottom of the inner wall of the protection cover, the connecting plate is rotationally connected with the rotary clamping plate, meanwhile, the sliding clamping plate is rotationally connected with a screw rod through a fixing block and a connector, and the screw rod is connected with the screw rod fixedly connected to the protection cover in a penetrating mode; therefore, the sliding clamping plates can be controlled to move inwards or outwards to adapt to inspection wells of different sizes.
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Description

Technical Field

[0001] This utility model relates to the field of wellhead construction protection technology in municipal engineering, specifically to a wellhead construction protection device for municipal engineering. Background Technology

[0002] Manhole protection during municipal engineering construction refers to safety measures taken to prevent people from falling or objects from entering the manhole. These measures mainly include setting up temporary barriers, covering the manhole with protective covers, and setting up warning signs to ensure the manhole is enclosed during construction.

[0003] The aforementioned devices lack a structure that provides full-enclosure protection and extended warning for manhole openings of different sizes. As a result, existing manhole openings are mostly protected by barriers or cones during construction operations. While these offer some protection, they do not provide full-enclosure protection. Furthermore, barriers cannot be connected and secured to manholes of different sizes. If a person driving a bicycle or two-wheeled vehicle collides with the protective barrier or cone, the barrier or cone will shift or tip over, making it easy for the driver to fall from the manhole. In addition, the warning effect of cones and barriers is relatively weak. If warning lights are forcibly added, the installation and removal are cumbersome and take up space. Based on the shortcomings of existing technology, this utility model designs a manhole construction protection device for municipal engineering. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a construction protection device for manholes in municipal engineering, which has the advantages of full-enclosure protection and extended warning for manholes of different sizes.

[0005] This utility model provides the following technical solution: a protective device for the construction of manholes in municipal engineering, including a protective cover. The outer surface of the protective cover is provided with a warning mechanism that facilitates storage and quick deployment for warning purposes. The interior of the protective cover is provided with a fixing mechanism that facilitates fixing the protective cover to manholes of different inner diameters.

[0006] The fixing mechanism includes a connecting plate, a rotating clamping plate, a threaded cylinder, a screw, a screw head, a connecting head, a fixing block, and a sliding clamping plate. The connecting plate is fixedly connected to one side of the inner wall of the protective cover. The rotating clamping plate is rotatably connected to the inner end of the connecting plate. The threaded cylinder is fixedly connected to the other side of the inner wall of the protective cover. The screw is threaded through and connected to the threaded cylinder. The screw head is fixedly connected to the outer end of the screw. The connecting head is rotatably connected to the inner end of the screw. The fixing block is fixedly connected to the inner side of the connecting head. The sliding clamping plate is fixedly connected to the lower surface of the fixing block.

[0007] As a preferred embodiment of this utility model, the warning mechanism includes a fixed frame, a rotating groove, a lower insertion hole, an upper insertion hole, a rod, a second locking pin, a rotating shaft, a warning light plate, and a lock hole. The fixed frame is fixedly connected to the side wall of the protective cover. The rotating groove extends through both sides of the fixed frame. The lower insertion hole extends through both sides of the fixed frame below the rotating groove. The upper insertion hole extends through both sides of the fixed frame above the rotating groove. The rod is inserted into the lower and upper insertion holes. The second locking pin is inserted into the rod. The rotating shaft is rotatably connected to the rotating groove. The warning light plate is fixedly connected to the rotating shaft. The lock hole extends through the warning light plate.

[0008] As a preferred embodiment of this utility model, a hinge is provided at the open edge of the outer surface of the protective cover, a stop door is fixedly connected to the hinge, a door lock is provided on the stop door and the protective cover, a first locking pin is inserted into the door lock, and a handle is fixedly connected to the inner wall of the protective cover.

[0009] In a preferred embodiment of this utility model, the lower surfaces of the connecting plate, the rotating clamping plate, and the sliding clamping plate are fitted to the ground, and the outer sides of the inclined surfaces of the rotating clamping plate and the sliding clamping plate are fitted to the inner wall of the manhole.

[0010] As a preferred embodiment of this invention, the sliding clamp is movably disposed inside the protective cover.

[0011] As a preferred embodiment of this utility model, the warning light panel is rotatably mounted inside the fixed frame.

[0012] As a preferred embodiment of this utility model, the insertion rod is inserted into the inside of the lock hole.

[0013] As a preferred embodiment of this utility model, the gate is rotatably positioned at the opening of the protective cover.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This municipal engineering manhole construction protection device involves placing a protective cover around the manhole on the ground, then flipping the rotating clamp downwards to insert its arc panel into the manhole, and simultaneously inserting the arc panel of the sliding clamp into the manhole. Using a wrench and screwdriver, the screw is turned clockwise. The screw moves outwards under the action of the threaded cylinder, and through the connector and fixing block, it pulls the sliding clamp outwards, gradually increasing the distance between the rotating and sliding clamps until the outer surfaces of the arc panels of both clamps are flush with the inner wall of the manhole, thus completing the clamping and fixing. Tightening is then stopped. At this point, the protective cover is stably fixed to the ground for use under the clamping and limiting of the connecting plate, rotating clamp, and sliding clamp. This device facilitates the fixing of the protective cover to manholes of different inner diameters for use.

[0016] 2. The construction protection device for the wellhead of this municipal engineering project unlocks the warning light panel by pulling the second locking pin out of the insert rod and then pulling the insert rod out of the lock hole and the lower insertion hole. Then, the warning light panel is flipped up and unfolded so that the luminous warning side of the warning light panel faces outward. After the warning light panel is flipped up, the lock hole is aligned with the upper insertion hole. At this time, the insert rod is inserted from the upper insertion hole, passes through the lock hole, and is inserted out from the upper insertion hole on the other side. Finally, the second locking pin is inserted into the insert rod to lock and fix the warning light panel, and the warning light panel is used for warning. This device can improve the warning effect of the protective cover. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the main structure of the protective device of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective cover and internal handle structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the explosion structure of the warning mechanism of this utility model;

[0021] Figure 5 This is a cross-sectional view of the fixing mechanism of this utility model.

[0022] In the diagram: 1. Protective cover; 101. Hinge; 102. Door stop; 103. Door lock; 104. First locking pin; 105. Handle; 2. Warning mechanism; 201. Fixing frame; 202. Rotary groove; 203. Lower insertion hole; 204. Upper insertion hole; 205. Insert rod; 206. Second locking pin; 207. Rotating shaft; 208. Warning light panel; 209. Lock hole; 3. Fixing mechanism; 301. Connecting plate; 302. Rotating clamp; 303. Threaded cylinder; 304. Screw; 305. Tightening head; 306. Connecting head; 307. Fixing block; 308. Sliding clamp. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5The municipal engineering manhole construction protection device includes a protective cover 1. The outer surface of the protective cover 1 is provided with a warning mechanism 2 for easy storage and quick deployment of warnings. The interior of the protective cover 1 is provided with a fixing mechanism 3 for fixing the protective cover 1 to manholes of different inner diameters. A hinge 101 is provided at the open edge of the outer surface of the protective cover 1. A stop door 102 is fixedly connected to the hinge 101. A door lock 103 is provided on the stop door 102 and the protective cover 1. A first locking pin 104 is inserted into the door lock 103. A handle 105 is fixedly connected to the inner wall of the protective cover 1. The stop door 102 is rotatably located at the open end of the protective cover 1.

[0025] Please see Figure 5 The fixing mechanism 3 includes a connecting plate 301, a rotating clamping plate 302, a threaded cylinder 303, a screw 304, a screw head 305, a connector 306, a fixing block 307, and a sliding clamping plate 308. The connecting plate 301 is fixedly connected to one side of the inner wall of the protective cover 1. The rotating clamping plate 302 is rotatably connected to the inner end of the connecting plate 301. The threaded cylinder 303 is fixedly connected to the other side of the inner wall of the protective cover 1. The screw 304 is threaded through and connected to the threaded cylinder 303. The screw head 305 is fixedly connected to the inner wall of the protective cover 1. The connecting plate 301 is fixedly connected to the outer end of the screw 304, the connecting head 306 is rotatably connected to the inner end of the screw 304, the fixing block 307 is fixedly connected to the inner side of the connecting head 306, and the sliding clamp 308 is fixedly connected to the lower surface of the fixing block 307. The lower surfaces of the connecting plate 301, the rotating clamp 302 and the sliding clamp 308 are in contact with the ground. The outer slopes of the rotating clamp 302 and the sliding clamp 308 are in contact with the inner wall of the manhole. The sliding clamp 308 is movably disposed inside the protective cover 1.

[0026] By setting a connecting plate 301, a rotating clamping plate 302, and a sliding clamping plate 308, the protective cover 1 can be clamped and fixed by hooking onto the inner wall of the manhole. By setting a threaded cylinder 303, a screw 304, and a connector 306, and setting a screw head 305 at the outer end of the screw 304, the position of the sliding clamping plate 308 can be adjusted by rotating the screw 304 outward or inward using the threaded cylinder 303. At the same time, the bottom of the sliding clamping plate 308 is in contact with the ground, so that the sliding clamping plate 308 will rotate with the screw 304 and affect the position adjustment. By setting a fixing block 307, when the screw 304 and the connector 306 move inward or outward, the connector 306 can drive the sliding clamping plate 308 to move accordingly through the fixing block 307.

[0027] Please see Figure 4The warning mechanism 2 includes a fixed frame 201, a rotating groove 202, a lower insertion hole 203, an upper insertion hole 204, an insertion rod 205, a second locking pin 206, a rotating shaft 207, a warning light plate 208, and a locking hole 209. The fixed frame 201 is fixedly connected to the side wall of the protective cover 1. The rotating groove 202 is formed through both sides of the fixed frame 201. The lower insertion hole 203 is formed through both sides of the fixed frame 201 below the rotating groove 202. The upper insertion hole 204 is formed through the rotating groove 202. On both sides of the upper fixed frame 201, the insert rod 205 is inserted into the lower insert hole 203 and the upper insert hole 204. The second locking pin 206 is inserted into the insert rod 205. The rotating shaft 207 is rotatably connected in the rotating groove 202. The warning light plate 208 is fixedly connected to the rotating shaft 207. The lock hole 209 is opened through the warning light plate 208. The warning light plate 208 is rotatably set inside the fixed frame 201. The insert rod 205 is inserted into the lock hole 209.

[0028] By setting up a fixed frame 201, a rotating groove 202, a rotating shaft 207, and a warning light panel 208, the warning light panel 208 can be flipped downwards for storage and use or flipped upwards for warning purposes within the fixed frame 201. By setting up a lower insertion hole 203, an upper insertion hole 204, an insertion rod 205, and a locking hole 209, when the warning light panel 208 is flipped downwards for storage, the insertion rod 205 can be inserted into the locking hole 209 from the lower insertion hole 203 to lock the warning light panel 208. When the warning light panel 208 is flipped upwards for warning purposes, the insertion rod 205 can be inserted into the locking hole 209 from the upper insertion hole 204 to lock the warning light panel 208.

[0029] Working principle: When the protective device for manhole construction in municipal engineering is used, in the initial state, the barrier 102 is first rotatably set at the opening of the protective cover 1 via the hinge 101. A door lock 103 is set between the barrier 102 and the hinge 101, and a first locking pin 104 is inserted into the door lock 103. At the same time, a handle 105 is installed on the inner side of the protective cover 1, so that the protective cover 1 can be used to surround the manhole while the barrier 1 can be opened and closed to allow workers to enter and exit. A fixed frame 201 set on the outer surface of the protective cover 1 has a rotating groove 202, a lower insertion hole 203 and an upper insertion hole 204. A warning light plate 20 is installed on the rotating shaft 207 rotatably connected in the rotating groove 202. 8 is set inside the fixed frame 201, and the lock hole 209 opened on the warning light plate 208 can be inserted into the lower insertion hole 203 and the upper insertion hole 204 respectively by inserting the rod 205 to control the rotation and unfolding or storage of the warning light plate 208. A connecting plate 301, a rotating clamping plate 302 and a sliding clamping plate 308 are provided at the bottom of the inner wall of the protective cover 1. The connecting plate 301 and the rotating clamping plate 302 are rotatably connected, while the sliding clamping plate 308 is rotatably connected to the screw 304 through the fixing block 307 and the connector 306. The screw 304 is connected to the screw 304 that is fixedly connected through the protective cover 1, so as to control the sliding clamping plate 308 to move inward or outward to adapt to manholes of different sizes.

[0030] When it is necessary to fix the protective cover 1 to the outside of manholes with different inner diameters for use, first place the protective cover 1 around the ground around the manhole, then flip the rotating clamp 302 downward so that its arc panel is inserted into the manhole, and at the same time insert the arc panel of the sliding clamp 308 into the manhole. At this time, with the help of a wrench connected to the screw head 305, turn the screw 304 clockwise. The screw 304 moves outward under the action of the threaded cylinder 303, and passes through the connector 306 and the fixing block 3. 07. Pull the sliding clamp 308 outward to gradually increase the distance between the rotating clamp 302 and the sliding clamp 308 until the outer side of the arc panel of the rotating clamp 302 and the sliding clamp 308 are in contact with the inner wall of the manhole and the clamping and fixing are completed. Then stop twisting. At this time, the protective cover 1 can be stably fixed on the ground for use under the clamping and limiting of the connecting plate 301, the rotating clamp 302 and the sliding clamp 308. This device makes it easy to fix the protective cover 1 outside manholes with different inner diameters for use.

[0031] When it is necessary to improve the warning effect of the protective cover 1, firstly, pull the second locking pin 206 out of the insert rod 205, and pull the insert rod 205 out of the lock hole 209 and the lower insertion hole 203 to release the lock on the warning light plate 208. Then, use the rotating groove 202 and the rotating shaft 207 to flip the warning light plate 208 upward so that the luminous warning surface of the warning light plate 208 faces outward. After the warning light plate 208 is flipped, the lock hole 209 is aligned with the upper insertion hole 204. At this time, insert the insert rod 205 from the upper insertion hole 204, pass through the lock hole 209, and pull it out from the upper insertion hole 204 on the other side. Finally, insert the second locking pin 206 into the insert rod 205 to lock and fix the warning light plate 208, and use the warning light plate 208 to provide warning. This device can easily improve the warning effect of the protective cover 1.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for protecting the construction of a municipal engineering wellhead, comprising a protective cover (1), characterized in that: The outer surface of the protective cover (1) is provided with a warning mechanism (2) for easy storage and quick deployment of warnings, and the interior of the protective cover (1) is provided with a fixing mechanism (3) for easy fixing of the protective cover (1) on manholes with different inner diameters; The fixing mechanism (3) includes a connecting plate (301), a rotating clamping plate (302), a threaded cylinder (303), a screw (304), a screw head (305), a connector (306), a fixing block (307), and a sliding clamping plate (308). The connecting plate (301) is fixedly connected to one side of the inner wall of the protective cover (1), and the rotating clamping plate (302) is rotatably connected to the inner end of the connecting plate (301). The threaded cylinder (304) is fixedly connected to the inner wall of the protective cover (1). 03) The screw (304) is fixedly connected to the other side of the inner wall of the protective cover (1). The screw (304) is threaded through and connected to the threaded cylinder (303). The screw head (305) is fixedly connected to the outer end of the screw (304). The connector (306) is rotatably connected to the inner end of the screw (304). The fixing block (307) is fixedly connected to the inner side of the connector (306). The sliding clamp (308) is fixedly connected to the lower surface of the fixing block (307).

2. The municipal engineering wellhead construction protection device according to claim 1, characterized in that: The warning mechanism (2) includes a fixed frame (201), a rotating groove (202), a lower insertion hole (203), an upper insertion hole (204), an insertion rod (205), a second locking pin (206), a rotating shaft (207), a warning light plate (208), and a lock hole (209). The fixed frame (201) is fixedly connected to the side wall of the protective cover (1). The rotating groove (202) is opened through both sides of the fixed frame (201). The lower insertion hole (203) is opened through the fixed frame (201) below the rotating groove (202). On both sides of the fixed frame (201) above the rotating groove (202), the upper insertion hole (204) is opened through and is located on both sides of the fixed frame (201) above the rotating groove (202). The insertion rod (205) is inserted into the lower insertion hole (203) and the upper insertion hole (204). The second locking pin (206) is inserted into the insertion rod (205). The rotating shaft (207) is rotatably connected in the rotating groove (202). The warning light plate (208) is fixedly connected to the rotating shaft (207). The locking hole (209) is opened through and is located in the warning light plate (208).

3. The municipal engineering wellhead construction protection device according to claim 1, characterized in that: A hinge (101) is provided at the open edge of the outer surface of the protective cover (1). A door stop (102) is fixedly connected to the hinge (101). A door lock (103) is provided on the door stop (102) and the protective cover (1). A first locking pin (104) is inserted into the door lock (103). A handle (105) is fixedly connected to the inner wall of the protective cover (1).

4. The municipal engineering wellhead construction protection device according to claim 1, characterized in that: The lower surfaces of the connecting plate (301), rotating clamp (302), and sliding clamp (308) are fitted to the ground, and the outer sides of the inclined surfaces of the rotating clamp (302) and sliding clamp (308) are fitted to the inner wall of the manhole.

5. The municipal engineering wellhead construction protection device according to claim 1, characterized in that: The sliding clamp (308) is movably disposed inside the protective cover (1).

6. The municipal engineering wellhead construction protection device according to claim 2, characterized in that: The warning light panel (208) is rotatably mounted inside the fixed frame (201).

7. The municipal engineering wellhead construction protection device according to claim 2, characterized in that: The insertion rod (205) is inserted into the lock hole (209).

8. The municipal engineering wellhead construction protection device according to claim 3, characterized in that: The blocking door (102) is rotatably arranged at the opening of the protective cover (1).