CN218523060U

CN218523060U - Gate valve with silt prevention function

Info

Publication number: CN218523060U
Application number: CN202222335073.9U
Authority: CN
Inventors: 冯紫华; 张忠新; 李真真; 魏芬荣
Original assignee: Zhengzhou Rongxing Industrial Co ltd
Current assignee: Zhengzhou Rongxing Industrial Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-02-24
Anticipated expiration: 2032-09-02

Abstract

The utility model provides a gate valve with prevent silt function relates to gate valve technical field, should have and prevent silt function gate valve includes two backplate, two fixed being provided with between the backplate floodgate body and lower floodgate body, first bar slide opening and the L type slide opening that communicates with first bar slide opening have been seted up at the top of lower floodgate body, the inner wall of first bar slide opening slides the laminating and has lower flashboard, the inner wall of L type slide opening slides the laminating and has the slippery fell, and when the gate valve was closed, the flashboard moved down on the control drive structure drive, goes up the flashboard and moves down the synchronous lapse of drive sleeve pipe, elastic component and ejector pin, and the ejector pin moves down the contact slippery fell and drives the slippery fell and move down, and the gliding fell shifts up and move out the silt layer through the flashboard under the hydraulic medium drive, and the flashboard contact laminating down, accomplishes closing of gate valve, has effectively avoided silt to pile up between last flashboard and lower flashboard, has avoided causing the gate valve to close badly to avoid influencing normal use.

Description

Gate valve with silt prevention function

Technical Field

The utility model relates to a gate valve technical field specifically is a gate valve with prevent silt function.

Background

The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be opened and closed completely. The medium channel in the valve body is straight-through, the medium flows in a straight line, and the flow resistance is small. Compared with a stop valve, the movement direction of the flashboard is vertical to the flow direction of the medium no matter the flashboard is opened or closed, so the opening and closing are more labor-saving. The gate valve is high, the opening and closing stroke of the gate plate is large, the gate plate descends through the screw rod, the closing time is long, and therefore the water hammer phenomenon is not prone to occurring. Based on the above advantages, the gate valve is widely used.

The gate valve mainly comprises a valve body, a valve cover, a valve rod arranged at the center of the valve cover, a hand wheel arranged at the upper end of the valve rod, a valve plate arranged at the lower end of the valve rod and the like, wherein a groove is formed in the lower portion of the valve body corresponding to the position of the valve plate, the valve rod is driven by the hand wheel to rotate to drive the valve plate to move downwards, and when the valve plate is completely buckled with the groove, complete closing is achieved, and medium transmission is cut off. However, for the transmission medium mixed with silt or other particles, silt and the like are easy to accumulate in the groove of the valve plate, which causes the phenomenon that the gate valve is not closed tightly and affects normal use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a have and prevent silt function gate valve, the gate valve that aims at solving among the prior art is to the transfer medium who thoughtlessly has silt or other granule, and silt etc. piles up very easily to the recess of valve plate in, causes the gate valve to close not tight phenomenon, influences the problem of normal use.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the gate valve with the function of preventing silt, including two backplate, two fixed being provided with between the backplate floodgate body and lower floodgate body, the top of floodgate body has seted up first bar slide opening and the L type slide opening that communicates with first bar slide opening down, the inner wall of first bar slide opening slides and laminates and has had down the flashboard, the inner wall of L type slide opening slides and laminates and has had the slippery head, first bar slide opening and the intussuseption of L type slide opening are filled with hydraulic medium, the second bar slide opening that corresponds with first bar slide opening is seted up to the bottom of going up the floodgate body, the inner wall of second bar slide opening slides and laminates and has the last flashboard that corresponds with lower flashboard, it is used for driving the drive structure that the flashboard reciprocated to go up to be provided with on floodgate body and the flashboard, the fixed sleeve pipe that is provided with on the flashboard, the fixed ejector pin that is provided with sleeve pipe inner wall sliding connection and corresponds with the slippery head of one end of elastic component.

The utility model discloses a further technical scheme does, hydraulic medium is hydraulic oil.

The utility model discloses a further technical scheme does, the top of lower flashboard is provided with the slope, go up the bottom of flashboard and offer the recess that corresponds with the slope.

The utility model discloses a further technical scheme does, the drive structure is including seting up the screw hole on last flashboard, the inner wall threaded connection of screw hole has the screw rod that runs through the floodgate body, the surface of screw rod passes through the bearing and is connected with last floodgate body rotation, the one end fixedly connected with carousel of screw rod.

The further technical proposal of the utility model is that a rotating handle is fixedly arranged on the turntable.

The utility model discloses a further technical scheme does, sheathed tube inner wall shape is the rectangular bodily form, the shape of ejector pin is the rectangular bodily form with cover inside pipe wall looks adaptation.

The utility model discloses a further technical scheme does, the elastic component is the spring.

The utility model has the advantages that:

through setting up two backplate, go up the floodgate body, lower floodgate body, first bar slide opening, L type slide opening, lower flashboard, the slippery fell, hydraulic medium, second bar slide opening, go up the flashboard, drive structure, the sleeve pipe, the cooperation of elastic component and ejector pin, when having realized the gate valve and closing, control drive structure drives the flashboard and moves down, it moves down to go up the flashboard and drives the sleeve pipe, elastic component and ejector pin synchronous move down, the ejector pin moves down and contacts the slippery fell and drives the slippery fell and move down, the slippery fell moves down and moves up and move out the silt layer through hydraulic medium drive lower flashboard, it laminates to go up the flashboard and contact of lower flashboard, accomplish closing of gate valve, effectively avoided silt to pile up between last flashboard and lower flashboard, avoid causing the gate valve to close badly, thereby avoid influencing normal use.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a cross-sectional view of an embodiment of the invention.

Fig. 3 is a sectional view showing a closed state of the gate valve according to the embodiment of the present invention.

In the figure: 1-guard plate, 2-upper brake body, 201-second strip-shaped slide hole, 3-lower brake body, 301-first strip-shaped slide hole, 302-L-shaped slide hole, 4-lower brake plate, 401-slope, 5-sliding head, 6-hydraulic medium, 7-upper brake plate, 701-groove, 8-driving structure, 801-threaded hole, 802-screw rod, 803-rotary table, 9-sleeve, 10-elastic piece, 11-ejector rod and 12-rotary handle.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

The embodiment of the present invention is shown in fig. 1-3, a gate valve with silt-proof function, including two guard plates 1, fixed being provided with gate body 2 and lower gate body 3 between two guard plates 1, the water flow channel has been constituted between upper gate body 2 and the lower gate body 3, first bar slide hole 301 and the L type slide hole 302 that communicates with first bar slide hole 301 have been seted up at the top of lower gate body 3, the inner wall of first bar slide hole 301 slides and is laminated with lower gate plate 4, the inner wall of L type slide hole 302 slides and is laminated with crosshead 5, first bar slide hole 301 and L type slide hole 302 are filled with hydraulic medium 6, crosshead 5 descends and can move out the sediment silt layer that deposits through hydraulic medium 6 drive lower gate plate 4, the bottom of upper gate body 2 is seted up the second bar slide hole that corresponds with first bar slide hole 301, the inner wall of second bar slide hole 201 slides and is laminated with upper gate plate 7 that corresponds with lower gate plate 4, upper gate body 2 and upper gate plate 7 are provided with the upper gate plate 7 and are provided with the fixed inner wall that is used for driving, the fixed gate plate 7 is provided with the fixed inner wall that is provided with the fixed flashboard 9 and is provided with the fixed thimble 9, the ejector pin 9 and the fixed thimble 10 that can be provided with the fixed inner wall that the fixed thimble 9, the ejector pin 10 that the ejector pin can be provided with the fixed thimble 9 and the fixed thimble 10 that moves up and the thimble 10 that can be provided with the ejector pin 10.

The utility model discloses an in the embodiment, when the gate valve is closed, control drive structure 8 drives flashboard 7 and moves down, go up flashboard 7 and move down and drive sleeve pipe 9, elastic component 10 and ejector pin 11 and move down in step, ejector pin 11 moves down contact slippery fell 5 and drive slippery fell 5 and move down, up to last flashboard 7 and the laminating of flashboard 4 contact down, accomplish closing of gate valve, avoided silt to pile up between last flashboard 7 and lower flashboard 4, avoid causing the gate valve to close not tight to avoid influencing normal use.

When the upper gate plate 7 is contacted with the lower gate plate 4, the impact of the upper gate plate 7 on the lower gate plate 4 can drive the lower gate plate 4 to slightly move downwards, the impact force can push the sliding head 5 to move upwards through the hydraulic medium 6, and the sliding head 5 moves upwards to drive the ejector rod 11 to compress the elastic part 10 and extend into the sleeve 9 for buffering.

Specifically, the hydraulic medium 6 is hydraulic oil.

In order to prevent the effect of the lower gate plate 4 on accumulating silt, the slope 401 is arranged at the top of the lower gate plate 4, silt can slide off along the slope 401, silt is prevented from being left on the lower gate plate 4, the groove 701 corresponding to the slope 401 is formed in the bottom of the upper gate plate 7, and the groove 701 is matched with the top of the lower gate plate 4 to improve the connection tightness between the lower gate plate 4 and the upper gate plate 7.

In order to drive the effect that upper gate plate 7 reciprocated, drive structure 8 is including seting up the screw hole 801 on upper gate plate 7, and the inner wall threaded connection of screw hole 801 has the screw rod 802 that runs through upper gate body 2, and the surface of screw rod 802 passes through the bearing and is connected with upper gate body 2 rotation, and the one end fixedly connected with carousel 803 of screw rod 802.

In order to control the rotation of the turntable 803, a rotating handle 12 is fixedly arranged on the turntable 803.

In order to enable the ejector rod 11 to slide along the inner wall of the sleeve 9 with a single degree of freedom, the inner wall of the sleeve 9 is cuboid, and the ejector rod 11 is cuboid matched with the inner wall of the sleeve 9, so that the ejector rod 11 can slide along the inner wall of the sleeve 9 with a single degree of freedom, and the movement stability of the ejector rod 11 is improved.

In order to save cost, the elastic member 10 is a spring, and the cost can be saved due to the lower price of the spring.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A gate valve with a silt prevention function is characterized by comprising two guard plates (1), an upper gate body (2) and a lower gate body (3) are fixedly arranged between the two guard plates (1), the top of the lower brake body (3) is provided with a first strip-shaped slide hole (301) and an L-shaped slide hole (302) communicated with the first strip-shaped slide hole (301), the inner wall of the first strip-shaped sliding hole (301) is attached with a lower flashboard (4) in a sliding way, the inner wall of the L-shaped sliding hole (302) is in sliding fit with a sliding head (5), the first strip-shaped sliding hole (301) and the L-shaped sliding hole (302) are filled with hydraulic medium (6), the bottom of the upper brake body (2) is provided with a second strip-shaped slide hole (201) corresponding to the first strip-shaped slide hole (301), the inner wall of the second strip-shaped sliding hole (201) is in sliding fit with an upper flashboard (7) corresponding to the lower flashboard (4), the upper brake body (2) and the upper brake plate (7) are provided with a driving structure (8) for driving the upper brake plate (7) to move up and down, a sleeve (9) is fixedly arranged on the upper flashboard (7), an elastic piece (10) is fixedly arranged on the inner wall of the sleeve (9), one end of the elastic piece (10) is fixedly provided with a mandril (11) which is connected with the inner wall of the sleeve (9) in a sliding way and corresponds to the sliding head (5).

2. The gate valve with function of preventing silt according to claim 1, characterized in that, said hydraulic medium (6) is hydraulic oil.

3. The gate valve with the function of preventing silt according to claim 1, wherein a slope (401) is arranged on the top of the lower gate plate (4), and a groove (701) corresponding to the slope (401) is opened on the bottom of the upper gate plate (7).

4. The gate valve with the function of preventing silt according to claim 1, wherein said driving structure (8) comprises a threaded hole (801) formed on the upper gate plate (7), the inner wall of said threaded hole (801) is in threaded connection with a screw (802) penetrating through the upper gate body (2), the outer surface of said screw (802) is rotatably connected with the upper gate body (2) through a bearing, and one end of said screw (802) is fixedly connected with a rotary disc (803).

5. The gate valve with the function of preventing silt according to claim 4, wherein a rotating handle (12) is fixedly arranged on the rotating disc (803).

6. The gate valve with the function of preventing silt according to claim 1, wherein the inner wall of the sleeve (9) is cuboid, and the shape of the mandril (11) is cuboid which is matched with the inner wall of the sleeve (9).

7. The gate valve with function of preventing silt according to any of claims 1 to 6, wherein said elastic member (10) is a spring.