Waterproof manhole cover for inspection wells

Abstract

This utility model belongs to the field of inspection well technology, specifically disclosing a waterproof manhole cover for inspection wells, including a fixed ring and a top cover hinged to the fixed ring. The gap between the top cover and the inner ring of the fixed ring is matched. A support platform for supporting the top cover is provided on the inner side of the fixed ring. The inner ring of the fixed ring can be opened and closed by rotating the top cover. An inspection hole is provided on the top cover for the operator to pull the top cover. A sealing component that can automatically seal the inspection hole is provided at the bottom of the top cover. The sealing component includes a pin, a fixed block is hinged to one side of the pin, a movable block is hinged to the other side of the pin, and a return spring is provided on the pin. The waterproof manhole cover of this utility model can prevent rainwater from seeping into the inspection well through the inspection hole and the gap between the top cover and the fixed ring, thereby preventing the equipment in the inspection well from failing or being damaged due to rainwater soaking. It plays a certain role in protecting the equipment in the inspection well, improving the service life of the equipment, and reducing the failure rate of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of inspection well technology, and in particular to a waterproof well cover for inspection wells. Background Technology

[0002] Inspection wells are essential structures used in engineering projects. They are usually made of brick masonry or brick-concrete structures. Inspection wells are required for parts that need to be inspected, such as cable, gas and water supply and drainage pipe networks, corners, and valve operation positions. Inspection wells are equipped with manhole covers.

[0003] Reference Figure 1 Existing manhole covers include a fixed ring (1) and a top cover (2) hinged to the fixed ring (1). To facilitate the opening and closing of the top cover (2), the gap between the top cover (2) and the inner ring of the fixed ring (1) is matched. The inner ring of the fixed ring (1) can be opened and closed by rotating the top cover (2). To facilitate pulling the top cover (2), an inspection hole (102) is provided on the top cover (2) for the operator to pull the top cover (2). When this type of manhole cover is used in corner manholes or valve operation manholes for cables or gas, since such manholes are closed structures, there are no drainage measures at the bottom. In rainy weather, rainwater will flow into the manhole from the gap between the fixed ring and the top cover and the inspection hole on the top cover, causing water accumulation in the manhole and affecting the normal use of the equipment inside the manhole. Utility Model Content

[0004] In view of the technical problem that existing inspection wells are prone to water accumulation during rainy weather, which causes the equipment inside the well to malfunction, this utility model provides a waterproof well cover for inspection wells.

[0005] The technical solution adopted by this utility model is as follows: a waterproof manhole cover for inspection wells, including a fixed ring and a top cover hinged to the fixed ring. The gap between the top cover and the inner ring of the fixed ring is matched. A support platform for supporting the top cover is provided on the inner side of the fixed ring. The inner ring of the fixed ring can be opened and closed by rotating the top cover. An inspection hole for the operator to pull the top cover is provided on the top cover. A sealing assembly for automatically sealing the inspection hole is provided at the bottom of the top cover. The sealing assembly includes a pin. A fixed block is hinged to one side of the pin, and a movable block is hinged to the other side of the pin. A return spring is provided on the pin. The contact part of the return spring abuts against the bottom of the fixed block and the movable block. The return spring can drive the fixed block and the movable block to rotate toward the top of the fixed block and the movable block. The top of the fixed block is fixedly connected to the bottom of the top cover.

[0006] Furthermore, a first sealing gasket matching the top cover is provided on the support platform.

[0007] Furthermore, the first sealing gasket is detachably connected to the support platform.

[0008] Furthermore, the first sealing gasket is laid on the support platform.

[0009] Furthermore, the first sealing gasket is a rubber gasket.

[0010] Furthermore, a second sealing gasket is provided on the top of the movable block.

[0011] Furthermore, the second sealing gasket is a rubber gasket.

[0012] Furthermore, the second sealing gasket is bonded to the movable block.

[0013] Furthermore, the inspection hole is a long, narrow, rectangular hole.

[0014] Furthermore, the fixing block is connected to the top cover by welding.

[0015] The beneficial effects of this utility model are: the waterproof manhole cover of this utility model can prevent rainwater from seeping into the inspection well through the inspection hole and the gap between the top cover and the fixing ring, thereby preventing the equipment in the inspection well from failing or being damaged due to rainwater soaking, playing a certain protective role for the equipment in the inspection well, improving the service life of the equipment, and reducing the failure rate of the equipment. Attached Figure Description

[0016] Figure 1 This is a structural diagram of existing manhole covers.

[0017] Figure 2 This is a structural schematic diagram of the waterproof manhole cover of this utility model.

[0018] Figure 3 It is a three-dimensional sealing component Figure 1 .

[0019] Figure 4 It is a three-dimensional sealing component Figure 2 .

[0020] The diagram is marked as follows:

[0021] 1. Fixing ring; 101. Support platform; 102. Inspection hole; 103. First sealing gasket;

[0022] 2. Top cover;

[0023] 3. Sealing assembly; 301. Pin; 302. Fixed block; 303. Moving block; 304. Return spring; 305. Second sealing gasket. Detailed Implementation

[0024] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The following is in conjunction with the appendix Figures 2-4 The present invention will be further described below.

[0027] Example

[0028] In view of the technical problems existing in the background art, the present invention provides a waterproof well cover for inspection wells.

[0029] In the specific technical solution, the waterproof manhole cover includes a fixing ring 1 and a top cover 2 hinged to the fixing ring 1. The gap between the top cover 2 and the inner ring of the fixing ring 1 is matched. A support platform 101 for supporting the top cover 2 is provided on the inner side of the fixing ring 1. The inner ring of the fixing ring 1 can be opened and closed by rotating the top cover 2. An inspection hole 102 for the operator to pull the top cover 2 is provided on the top cover 2.

[0030] The above structure is the same as that of existing manhole covers. Existing manhole covers have the technical problem that rainwater can flow into the well through the gap between the fixing ring 1 and the top cover 2, as well as through the inspection hole 102 on the top cover 2, causing water accumulation and affecting the normal use of equipment inside the well. Therefore, to address the above technical problem, this utility model makes the following further improvements:

[0031] Reference Figure 2 In this embodiment, a sealing component 3 that can automatically seal the inspection hole 102 is provided at the bottom of the top cover 2.

[0032] Specifically, refer to Figure 3 and Figure 4The sealing assembly 3 includes a pin 301, a fixed block 302 is hinged to one side of the pin 301, and a movable block 303 is hinged to the other side of the pin 301. A return spring 304 is provided on the pin 301. The abutting part of the return spring 304 abuts against the bottom of the fixed block 302 and the movable block 303. The return spring 304 can drive the fixed block 302 and the movable block 303 to rotate toward the top of the fixed block 302 and the movable block 303. The top of the fixed block 302 is fixedly connected to the bottom of the top cover 2. The pin 301, the fixed block 302 and the movable block 303 are steel structures, and the inspection hole 102 is a long strip hole.

[0033] Working principle: When installing the sealing component 3, the fixing block 302 of the sealing component 3 is welded to the side of the inspection hole 102 at the bottom of the top cover 2. After the sealing component 3 is welded, under the action of the return spring 304, the movable block 303 will receive an upward driving force from the return spring 304, that is, a driving force towards the top cover 2. Under the action of the driving force, the movable block 303 always blocks the bottom of the inspection hole 102, sealing the inspection hole 102, thereby preventing rainwater from seeping into the inspection well through the inspection hole 102. When it is necessary to inspect the valves or cables in the inspection well, the operator's fingers or special tools are inserted into the inspection hole 102. The force applied by the operator is greater than the driving force of the return spring 304, and the fingers or special tools push open the movable block 303, allowing the operator to smoothly pull up the top cover 2. When the operator withdraws his fingers or special tools, under the action of the return spring 304, the movable block re-seals the inspection hole 102.

[0034] As can be seen from the above structure and working principle, the waterproof manhole cover of this utility model can prevent rainwater from seeping into the inspection well through the inspection hole, thereby preventing the equipment in the inspection well from failing or being damaged due to rainwater soaking. It plays a certain protective role for the equipment in the inspection well, improves the service life of the equipment, and reduces the failure rate of the equipment.

[0035] To further enhance waterproofing, refer to Figure 2 In this embodiment, a first sealing gasket 103 matching the top cover 2 is also provided on the support platform 101 to seal the fixing ring and the top cover; meanwhile, referring to Figure 3 A second sealing gasket 305 is also provided on the top of the active block 303.

[0036] The first sealing gasket 103 is laid on the support platform 101, and the second sealing gasket 305 is bonded to the movable block 303. Both the first sealing gasket 103 and the second sealing gasket 305 are rubber gaskets.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waterproof manhole cover for inspection wells, comprising a fixing ring (1) and a top cover (2) hinged to the fixing ring (1), wherein the gap between the top cover (2) and the inner ring of the fixing ring (1) is matched, a support platform (101) for supporting the top cover (2) is provided on the inner side of the fixing ring (1), the inner ring of the fixing ring (1) can be opened and closed by rotating the top cover (2), and an inspection hole (102) is provided on the top cover (2) for an operator to pull the top cover (2), characterized in that, The bottom of the top cover (2) is provided with a sealing assembly (3) that can automatically seal the inspection hole (102). The sealing assembly (3) includes a pin (301), a fixed block (302) is hinged to one side of the pin (301), and a movable block (303) is hinged to the other side of the pin (301). A return spring (304) is provided on the pin (301). The abutting part of the return spring (304) abuts against the bottom of the fixed block (302) and the movable block (303). The return spring (304) can drive the fixed block (302) and the movable block (303) to rotate toward the top of the fixed block (302) and the movable block (303). The top of the fixed block (302) is fixedly connected to the bottom of the top cover (2).

2. A water-proof manhole cover for an inspection well according to claim 1, wherein, The support platform (101) is provided with a first sealing gasket (103) that matches the top cover (2).

3. A water-proofing well lid for an inspection well according to claim 2, wherein The first sealing gasket (103) is detachably connected to the support platform (101).

4. A water-proofing well lid for an inspection well according to claim 3, wherein The first sealing gasket (103) is laid on the support platform (101).

5. The watertight cover for inspection well according to claim 2, wherein, The first sealing gasket (103) is a rubber gasket.

6. The watertight cover for inspection well according to claim 1, characterized in that, The top of the movable block (303) is provided with a second sealing gasket (305).

7. A water-proofing well lid for an inspection well according to claim 6, wherein The second sealing gasket (305) is a rubber gasket.

8. A water-proofing well lid for an inspection well according to claim 7, wherein The second sealing gasket (305) is bonded to the movable block (303).

9. The watertight cover for inspection well according to claim 1, characterized in that, The inspection hole (102) is a long, narrow hole.

10. The waterproof well cover for inspection wells as described in claim 1, characterized in that, The fixing block (302) is connected to the top cover (2) by welding.

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