CN219827914U - Manual gate valve mounting structure - Google Patents

Abstract

The utility model discloses a manual gate valve installation structure which comprises an installation well and a gate valve body positioned in the installation well, wherein the gate valve body is positioned at the bottom of the installation well, a well cover is buckled on a well mouth cover of the installation well, an operation hole penetrates through the well cover and is positioned right above the gate valve body, an extension shaft is inserted into the operation hole, the lower end of the extension shaft is connected with an operation handle of the gate valve body, the upper end of the extension shaft extends out of the well cover upwards, the extension shaft is installed in the operation hole through a bearing, a circle of annular waterproof bearing platform is arranged on the upper surface of the well cover around the operation hole, and the waterproof bearing platform is fixed with the upper surface of the well cover. The utility model has the remarkable effects that the extension mechanism capable of being quickly disassembled is additionally arranged to conduct long-distance switch control on the underground manual gate valve, the stable operation process is kept, and the waterproof function on the rotating part and the underground space is achieved.

Description

Manual gate valve mounting structure

Technical Field

The utility model relates to pipeline fittings, in particular to a valve mounting structure.

Background

Gate valves are widely used in engineering industry and are mostly used for controlling on-off of water flow. The gate valve is normally controlled by moving the gate plate by rotating the screw, and the gate valve set in the early years is usually manually driven. In some engineering practices, a manual gate valve is installed in a subterranean well, and when the manual gate valve needs to be opened and closed, workers can go into the subterranean well to operate, so that time and labor are wasted; in this way, the motor-driven mode can be modified, but the switching frequency of some underground manual gate valves is not high, so the necessity of electrically modifying the underground manual gate valves is not strong.

In this regard, it has been proposed to extend the operating handle of the manual valve to above the ground through the rod member, so that the worker can be prevented from going up and down the well, and time and labor are saved; and when popularization and implementation are carried out, the extended rod piece lacks constraint and is easy to shake, and the operation is unstable. In addition, the water flow during rainfall easily falls into the well along the holes around the rod piece, so that water accumulation in the well is caused.

Disclosure of Invention

In view of this, the utility model provides a mounting structure which can restrict the extension rod of the manual gate valve and prevent precipitation from flowing into the well, and adopts the following main technical scheme:

the utility model provides a manual gate valve mounting structure, includes the mounting well and is located the gate valve body of this mounting well, the gate valve body is located the mounting well bottom the well lid has been detained to the well head cover of mounting well, it has the operation hole to run through on the well lid, this operation hole is located directly over the gate valve body, be inserted in this operation hole and be equipped with the extension axle, the lower extreme of extension axle with the operating handle of gate valve body is connected, the upper end of extension axle upwards stretches out the well lid, its key lies in:

the extension shaft is installed in the operation hole through the bearing the upper surface of well lid is surrounded the operation hole is equipped with the annular waterproof cushion cap of round, waterproof cushion cap with the upper surface of well lid is fixed.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of the k portion of FIG. 1;

fig. 3 is a schematic view of the structure of the present utility model in an inspection state.

Detailed Description

The utility model is further described below with reference to examples and figures.

As shown in fig. 1 and 2, a manual gate valve mounting structure comprises a mounting well a and a gate valve body 1 positioned in the mounting well a, wherein the gate valve body 1 is positioned at the bottom of the mounting well a, and the mounting well a is used for mounting a valve at a low position, for example, the mounting well a can be a vent well;

the gate valve body 1 includes the valve casing and assembles the gate plate in the valve casing, be equipped with water inlet and delivery port on the valve casing, the water inlet of valve casing is connected with inlet tube x1 through the ring flange subassembly, the delivery port of valve casing is connected with outlet pipe x2 through the ring flange subassembly, still be equipped with operation screw 11 on the valve casing, operation screw 11 vertical setting, operation screw 11 lower extreme with the gate plate is connected, and operation screw 11 upper end is equipped with second hand wheel 12. The assembly relationship between the restrictor plate and the valve housing is prior art and will not be described in detail herein. The operation screw 11 and the second hand wheel 12 form an operation handle of the gate valve body 1.

A well cover b is buckled on the well cover of the installation well a, and an operation hole penetrates through the well cover b and is positioned right above the gate valve body 1, and in a more specific embodiment, the operation hole is positioned right above the operation screw 11; an extension shaft 2 is vertically inserted in the operation hole, the lower end of the extension shaft 2 is connected with an operation handle of the gate valve body 1, and the upper end of the extension shaft 2 extends upwards out of the well cover b.

In order to improve the stability of the extension shaft 2, the extension shaft 2 is installed in the operation hole through a bearing, and the bearing can restrain the extension shaft 2 without affecting the rotation of the extension shaft 2, so that the rotation stability can be improved.

In order to avoid rainwater flow to the operation hole on the well lid b to cause ponding in the pit, the upper surface of well lid b is surrounded the operation hole is equipped with annular waterproof cushion cap b1 of round, waterproof cushion cap b1 with the upper surface of well lid b is fixed. The waterproof bearing platform b1 may be annular.

And on the basis of the consideration of water resistance and dust resistance of the bearing, a waterproof rubber plug 3 is sleeved on the extension shaft 2, and one implementation mode of the waterproof rubber plug 3 is to adopt a rubber plug. The waterproof rubber plug 3 is matched with the inner cavity of the waterproof bearing platform b1 so as to seal the inner cavity of the waterproof bearing platform b 1.

In order to further improve the waterproof and dustproof effects on the bearing, the following secondary protection structure can be additionally arranged, and the specific real-time mode is as follows: a waterproof cap 4 is also sleeved on the extension shaft 2 above the waterproof rubber plug 3, and the waterproof cap 4 covers and shields the waterproof bearing platform b 1.

A more specific embodiment of the waterproof cap 4 is: the waterproof cap 4 comprises an annular plate and a protection barrel, the annular plate is sleeved on the extension shaft 2, the protection barrel is vertically arranged, the upper end of the protection barrel is connected with the outer ring edge of the annular plate, and the waterproof bearing platform b1 is located in the protection barrel.

Aiming at the underground maintenance requirement, in order to facilitate rapid removal of the parts such as the well cover b and the like during maintenance, the extension shaft 2 can adopt a segmented structure;

the specific segmentation of the extension shaft 2 is: the extension shaft 2 comprises an upper movable shaft 21 and a lower fixed shaft 22, the upper movable shaft 21 is installed in the operation hole through a bearing, the lower end of the lower fixed shaft 22 is connected with an operation handle of the gate valve body 1, and the lower end of the upper movable shaft 21 is detachably connected with the upper end of the lower fixed shaft 22 in a transmission manner.

As can be seen in connection with fig. 3: in order to facilitate the well lid b to be able to be placed horizontally after being removed, the lower end of the upper movable shaft 21 should not be too long, i.e. the size of the lower end of the upper movable shaft 21 extending out of the lower end face of the well lid b should be small (e.g. less than 10 cm). A further preferable technical solution is that the lower end of the upper movable shaft 21 is flush with the lower end face of the well cover b, and a further preferable technical solution is that the lower end of the upper movable shaft 21 is located in the operation hole; therefore, the well cover can be ensured to be stably placed after being taken down, and the lower end of the upper movable shaft 21 is not stained with soil and damaged.

One specific way of the detachable transmission connection described above is: the lower end of the upper movable shaft 21 is of a sleeve structure; the upper end of the lower fixed shaft 22 extends into the lower end sleeve structure of the upper movable shaft 21, and the upper end sleeve structure and the lower end sleeve structure are connected by keys; a common key connection is a spline connection.

When the primary installation and each maintenance are completed, in order to facilitate the insertion of the upper movable shaft 21 and the lower fixed shaft 22, the upper end of the lower fixed shaft 22 can extend upwards to the wellhead of the installation well a; according to the use state shown in fig. 1, that is, the upper end of the lower fixing shaft 22 extends upwards out of the well cover b; this facilitates the insertion of the movable shaft 21 and the lower stationary shaft 22 into place uphole, the lower stationary shaft 22 also functioning as a guide head for the insertion.

In addition, during maintenance, the upper end of the lower fixed shaft 22 extends out of the wellhead to play a role in explicit indication and safety protection, and people cannot puncture the lower fixed shaft when falling down.

The lower end of the lower fixing shaft 22 may be connected to the operating handle of the gate valve body 1 in the following manner: a connection plate 22a is provided at a lower end of the lower fixing shaft 22, and the connection plate 22a is welded to the second hand wheel 12.

A first hand wheel is also provided at the upper end of the upper movable shaft 21.

The beneficial effects are that: by adopting the technical scheme of the utility model, the extension mechanism capable of being quickly disassembled and assembled is additionally arranged to conduct long-distance switch control on the underground manual gate valve, so that the operation process is kept to be carried out stably, and the waterproof function on the rotating part and the underground space is achieved.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (7)

1. The utility model provides a manual gate valve mounting structure, includes mounting well (a) and is located gate valve body (1) in this mounting well (a), gate valve body (1) are located mounting well (a) bottom the well head cover of mounting well (a) is detained well lid (b), it has the operation hole to run through on well lid (b), this operation hole is located directly over gate valve body (1), be equipped with extension axle (2) in this operation hole, the lower extreme of extension axle (2) with the operating handle of gate valve body (1) is connected, the upper end of extension axle (2) upwards stretches out well lid (b), its characterized in that:

the extension shaft (2) is installed in the operation hole through a bearing, a circle of annular waterproof bearing platform (b 1) is arranged on the upper surface of the well lid (b) around the operation hole, and the waterproof bearing platform (b 1) is fixed with the upper surface of the well lid (b).

2. The manual gate valve mounting structure according to claim 1, wherein: the extension shaft (2) is also sleeved with a waterproof rubber plug (3), and the inner cavity of the waterproof bearing platform (b 1) is plugged by the waterproof rubber plug (3).

3. The manual gate valve mounting structure according to claim 1, wherein: a waterproof cap (4) is also sleeved on the extension shaft (2) above the waterproof rubber plug (3), and the waterproof cap (4) covers and shields the waterproof bearing platform (b 1).

4. A manual gate valve mounting structure according to claim 3, wherein: waterproof cap (4) are including annular plate and protection section of thick bamboo, the annular plate cover is located on extension axle (2), the vertical setting of protection section of thick bamboo, the upper end of protection section of thick bamboo with the outer loop edge connection of annular plate, waterproof cushion cap (b 1) are located in the protection section of thick bamboo.

5. A manual gate valve mounting structure according to claim 1, 2, 3 or 4, wherein: the extension shaft (2) comprises an upper movable shaft (21) and a lower fixed shaft (22), the upper movable shaft (21) is installed in the operation hole through a bearing, the lower end of the lower fixed shaft (22) is connected with an operation handle of the gate valve body (1), and the lower end of the upper movable shaft (21) is detachably connected with the upper end of the lower fixed shaft (22) in a transmission manner.

6. The manual gate valve mounting structure according to claim 5, wherein: the upper end of the lower fixed shaft (22) extends upwards out of the well cover (b) to form a guide head, and the lower end of the upper movable shaft (21) is of a sleeve structure;

the upper end of the lower fixed shaft (22) stretches into the lower end sleeve structure of the upper movable shaft (21), and the upper end sleeve structure and the lower end sleeve structure are connected through keys.

7. The manual gate valve mounting structure according to claim 1, wherein: the upper end of the upper movable shaft (21) is provided with a first hand wheel.