A protective assembly for a prefabricated valve well

Abstract

A prefabricated valve well protection component includes: a well cover assembly, the well cover assembly including a well cover body, an operating hole vertically machined in the center of the upper surface of the well cover body, and a limiting component and a lifting component disposed inside the well cover body; the limiting component includes a large gear, a fixing ring disposed inside the large gear, a hexagonal groove machined in the center of the upper surface of the fixing ring, the position of the hexagonal groove corresponding to the operating hole, toothed plates symmetrically meshing on both outer walls of the large gear, a connecting rod fixedly connected to one end of the toothed plate, and a stopper plate fixedly installed at the end of the connecting rod away from the toothed plate; this utility model valve well protection component, through the setting of the limiting component, achieves the limiting of the well cover body, preventing the well cover body from jumping after being driven over by vehicles, thus ensuring the stability of the well cover body; through the setting of the lifting component, it is convenient for workers to fasten the pull ring and lift the well cover body, making the operation simple and quick, and convenient for workers to use.

Description

Technical Field

[0001] This utility model relates to the field of valve well technology, specifically a protective component for a prefabricated assembled valve well. Background Technology

[0002] A valve well is an underground structure used for the installation and maintenance of valves, fittings and other equipment in a pipeline system. Traditionally, valve wells are usually built on-site, but this method has a long construction period. Therefore, most existing valve wells are made of precast concrete components, and a protective component is installed on the valve well to protect the internal structure.

[0003] However, existing protective components are usually manhole covers, which are placed directly on top of the valve well. Due to the lack of a limiting mechanism, the manhole cover will bounce slightly when a vehicle drives over it. Over time, the manhole cover will shift slightly, affecting normal use. Summary of the Invention

[0004] The purpose of this invention is to provide a protective component for a prefabricated valve well to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective component for a prefabricated valve well, comprising: a well cover assembly, wherein the well cover assembly includes a well cover body, an operating hole is vertically machined in the middle of the upper surface of the well cover body, and a limit component and a lifting component are provided inside the well cover body;

[0006] The limiting component includes a large gear, inside which is a fixing ring. A hexagonal groove is machined in the middle of the upper surface of the fixing ring, and the position of the hexagonal groove corresponds to the operating hole. Tooth plates are symmetrically meshed on the outer walls of both sides of the large gear. A connecting rod is fixedly connected to one end of the tooth plate, and a stopper plate is fixedly installed at the end of the connecting rod away from the tooth plate.

[0007] The fixing ring of this utility model is rotatably connected to the manhole cover body and fixedly connected to the large gear.

[0008] The lifting assembly of this utility model is symmetrically arranged on both sides of the limiting assembly. The lifting assembly includes a small gear that meshes with a large gear. A hexagonal nut is fixedly provided on the inner wall of the small gear. A lead screw passes through the hexagonal nut. A limiting block is fixedly provided below the lead screw and a pull ring is fixedly installed above it.

[0009] The manhole cover body of this utility model has a groove inside corresponding to the size of the limiting block, and the limiting block can slide up and down in the groove.

[0010] The operating hole of this utility model is provided with a rubber stopper, and the upper surface of the rubber stopper is provided with a snap hole.

[0011] The connecting rod of this utility model has a guide block running through it, and the guide block is set on the inner wall of the manhole cover body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The valve well protection component of this utility model, through the setting of the limiting component, after the well cover body is placed on the valve well, the rubber plug is pulled out from the well cover body, and the hexagonal rod is inserted into the hexagonal groove of the large gear and rotated. The rotation of the large gear drives the tooth plate to move, and the tooth plate drives the connecting rod and the plug plate to move, so that the plug plate moves into the groove of the well seat, thereby realizing the limiting of the well cover body, preventing the well cover body from jumping after being run over by vehicles, and ensuring the stability of the well cover body.

[0014] 2. The valve well protection component of this utility model, through the setting of the lifting component, allows the large gear to rotate during the rotation of the large gear, which in turn drives the small gear to rotate. The small gear drives the hexagonal nut to rotate, which in turn drives the screw rod to move up and down. As the plug plate moves into the groove of the well seat, the screw rod moves downward, causing the pull ring to move downward and retract into the well cover body, without affecting vehicle driving. As the plug plate moves out of the groove of the well seat, the screw rod moves upward, causing the pull ring to move upward, making it convenient for workers to grab the pull ring and lift the well cover body. The operation is simple and quick, making it convenient for workers to use. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural cross-sectional schematic diagram of the present invention;

[0017] Figure 3 For the present utility model Figure 2 Schematic diagram of part A in the middle;

[0018] Figure 4 This is a schematic diagram of the limiting component of this utility model;

[0019] Figure 5 This is a schematic diagram of the lifting component of this utility model.

[0020] In the diagram: 01, manhole cover assembly; 11, manhole cover body; 12, rubber plug; 02, limiting assembly; 21, large gear; 22, fixing ring; 23, toothed plate; 24, connecting rod; 25, guide block; 26, plug plate; 03, lifting assembly; 31, small gear; 32, hexagonal nut; 33, lead screw; 34, limiting block; 35, pull ring. Detailed Implementation

[0021] 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.

[0022] like Figures 1-5 As shown, the present invention relates to a protective component for a prefabricated assembled valve well, comprising: a well cover assembly 01, the well cover assembly 01 including a well cover body 11, the well cover body 11 being composed of upper and lower parts connected together, with a cavity in the middle for installing a limiting component 02 and a lifting component 03, an operating hole vertically machined in the middle of the upper surface of the well cover body 11, a rubber plug 12 being provided in the operating hole, and a snap hole machined on the upper surface of the rubber plug 12, allowing a finger or a long tool to be inserted into the snap hole of the rubber plug 12 to remove the rubber plug 12 from the well cover body 11. The rubber plug 12 serves to cover and prevent foreign objects from entering the well cover body 11 and affecting the operation of the limiting component 02 therein.

[0023] The limiting component 02 in this embodiment includes a large gear 21. A fixing ring 22 is fixedly installed inside the large gear 21. The fixing ring 22 is rotatably connected to the manhole cover body 11 via a rotating shaft and bearings. The fixing ring 22 can rotate relative to the manhole cover body 11. A hexagonal groove is machined in the middle of the upper surface of the fixing ring 22. The position of the hexagonal groove corresponds to the operating hole. The operator inserts the hexagonal rod into the hexagonal groove through the operating hole to rotate it. The rotation of the fixing ring 22 drives the large gear 21 to rotate. Tooth plates 23 are symmetrically meshed on the outer walls of both sides of the large gear 21. A connecting rod 2 is fixedly connected to one end of the tooth plates 23. 4. A groove is machined along the length of the connecting rod 24. A guide block 25 is inserted through the groove and can move horizontally relative to the groove. The guide block 25 is fixedly installed on the lower wall surface of the cavity of the manhole cover body 11. The guide block 25 guides the connecting rod 24 and ensures the accuracy of the moving direction of the connecting rod 24. A stopper plate 26 is fixedly installed at the end of the connecting rod 24 away from the toothed plate 23. A passage groove is provided on the manhole cover body 11 corresponding to the stopper plate 26. The movement of the toothed plate 23 drives the stopper plate 26 to move out of the passage groove and into the groove corresponding to the manhole seat, which can limit the position of the manhole cover body 11.

[0024] The lifting assembly 03 is symmetrically arranged on both sides of the limiting assembly 02. The lifting assembly 03 includes a small gear 31, which meshes with a large gear 21. A hexagonal nut 32 is fixedly installed in the middle of the small gear 31. A lead screw 33 is vertically installed through the hexagonal nut 32. A connecting sleeve is fixedly installed on the upper surface of the small gear 31. The connecting sleeve is located outside the lead screw 33 and does not affect the movement of the lead screw 33. The end of the connecting sleeve is installed in the manhole cover body 11 through a bearing, so that the small gear 31 can rotate relative to the manhole cover body 11. The connecting sleeve serves to fix and connect the small gear 31. The upper part of the lead screw 33 is provided with a pull ring 35 and the lower part is provided with a limit block 34. The lead screw 33 can rotate relative to the limit block 34. The upper part of the lead screw 33 can extend into the lifting hole machined on the upper part of the manhole cover body 11. When the large gear 21 rotates, it drives the small gear 31 and the hexagonal nut 32 to rotate synchronously. Since the hexagonal nut 32 cooperates with the lead screw 33, the lead screw 33 undergoes vertical displacement. In order to prevent the lead screw 33 from rotating and disengaging from the hexagonal nut 32, a limit block 34 is provided at the lower part of the lead screw 33. The inside of the manhole cover body 11 is provided with a sliding groove corresponding to the size of the limit block 34. The sliding groove restricts the limit block 34 to slide up and down but not rotate, preventing the lead screw 33 from rotating with the small gear 31, causing the lead screw 33 and the hexagonal nut 32 to fail. When the plug plate 26 extends, the pinion drives the lead screw 33 and the pull ring 35 to retract into the lifting hole. When the plug plate 26 retracts, the pinion drives the lead screw 33 and the pull ring 35 to extend out of the lifting hole, making it convenient for workers to hold the pull ring 35 and lift the manhole cover body 11. When the manhole cover is put into use, the lifting hole is plugged with a rubber plug to prevent foreign objects from entering. When disassembling and installing, the rubber plug is removed.

[0025] Working principle: When in use, first place the manhole cover body 11 on the valve well, then pull out the rubber plug 12 from the manhole cover body 11, insert the hexagonal rod into the hexagonal groove and rotate it. The rotation of the large gear 21 drives the toothed plate 23 to move, and the toothed plate 23 drives the connecting rod 24 and the plug plate 26 to move, so that the plug plate 26 moves into the groove of the well seat. During the rotation of the large gear 21, it will drive the small gear 31 to rotate, and the small gear 31 drives the hexagonal nut 32 to rotate, which in turn drives the screw 33 to move downward, retracting the pull ring 35 back into the manhole cover body 11.

Claims

1. A protective assembly for a prefabricated valve well, characterized in that, include: The manhole cover assembly (01) includes a manhole cover body (11), an operating hole is vertically machined in the middle of the upper surface of the manhole cover body (11), and a limit component (02) and a lifting component (03) are provided inside the manhole cover body (11). The limiting component (02) includes a large gear (21), and a fixing ring (22) is provided inside the large gear (21). A hexagonal groove is machined in the middle of the upper surface of the fixing ring (22), and the position of the hexagonal groove corresponds to the operating hole. Tooth plates (23) are symmetrically meshed on the outer walls of both sides of the large gear (21). A connecting rod (24) is fixedly connected to one end of the tooth plate (23), and a plug plate (26) is fixedly installed at the end of the connecting rod (24) away from the tooth plate (23).

2. The protective assembly for a prefabricated valve well according to claim 1, characterized in that: The fixing ring (22) is rotatably connected to the manhole cover body (11) and fixedly connected to the large gear (21).

3. The protective assembly for a prefabricated valve well according to claim 1, characterized in that: The lifting assembly (03) is symmetrically arranged on both sides of the limiting assembly (02). The lifting assembly (03) includes a small gear (31) that meshes with a large gear (21). A hexagonal nut (32) is fixedly provided on the inner wall of the small gear (31). A lead screw (33) passes through the hexagonal nut (32). A limiting block (34) is fixedly provided below the lead screw (33), and a pull ring (35) is fixedly installed above it.

4. The protective assembly for a prefabricated valve well according to claim 3, characterized in that: The manhole cover body (11) has a groove inside corresponding to the size of the limiting block (34), and the limiting block (34) can slide up and down in the groove.

5. The protective assembly for a prefabricated valve well according to claim 1, characterized in that: A rubber plug (12) is provided inside the operating hole, and a buckle hole is provided on the upper surface of the rubber plug (12).

6. The protective assembly for a prefabricated valve well according to claim 1, characterized in that: The connecting rod (24) has a guide block (25) running through its interior, and the guide block (25) is located on the inner wall of the manhole cover body (11).

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