CN217381696U - Gate valve with filtering baffle - Google Patents

Abstract

The utility model discloses a gate valve with a filtering baffle, which comprises a valve body, a bracket, a valve rod, a flashboard, a valve seat, an inlet channel and an outlet channel; a filtering baffle is arranged in the flow inlet channel, and a plurality of filtering holes are formed in the filtering baffle; lower extreme installing port has been seted up to the lower extreme in the runner, is provided with reset spring in the lower extreme installing port, and the lower extreme installing port is provided with limit stop towards the tip that goes out the runner, and the upper end installing port has been seted up to the upper end in the runner, is provided with upper end installation component in the upper end installing port. The utility model has the advantages of it is following and effect: through set up filtering baffle in the gate valve, come effectual improvement leakproofness, have filtering baffle installation simultaneously and dismantle all very convenient advantage.

Description

Gate valve with filtering baffle

Technical Field

The utility model relates to the technical field of valves, in particular to take filtering baffle's gate valve.

Background

The gate valve is a shutter plate, the moving direction of which is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and can not be adjusted and throttled. The gate valve is used as a stopping medium, wherein the medium comprises water, oil and the like, and the valve rod drives the gate plate to reciprocate during operation, so that communication or partition of a flow passage is realized.

The existing gate valve generally does not have a filtering function, solid particles and impurities doped in a fluid medium are easily deposited in a flow channel, so that the sealing difficulty of a gate plate is caused, and the sealing performance of the gate valve is influenced. If can set up filtering baffle in the gate valve, can effectual improvement leakproofness undoubtedly, still need consider filtering baffle's installation and dismantlement problem simultaneously to make things convenient for subsequent maintenance or change.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take gate valve of filtering baffle to solve the problem that proposes in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions: a gate valve with a filtering baffle comprises a valve body, wherein a flow channel for a fluid medium to circulate is formed in the valve body, a support is mounted at the upper end of the valve body, a valve rod is vertically mounted in the support, a gate plate penetrating the flow channel is fixedly mounted at the lower end of the valve rod, the valve rod drives the gate plate to reciprocate along the axial direction of the valve rod, a valve seat matched with the gate plate is arranged in the valve body to control the flow channel to be cut off/communicated, and the flow channel is divided by the gate plate to form an inlet flow channel and an outlet flow channel;

a filtering baffle matched with the inlet flow channel is arranged in the inlet flow channel, and a plurality of filtering holes are formed in the filtering baffle; the lower end of the filter baffle is provided with a lower end mounting port, a return spring is arranged in the lower end mounting port, the lower end mounting port faces the end part of the outlet flow channel and is fixedly provided with a limit stop, the upper end of the inlet flow channel is provided with an upper end mounting port, an upper end mounting component is arranged in the upper end mounting port, and after the lower end of the filter baffle is arranged in the lower end mounting port, the upper end of the filter baffle can be embedded into the upper end mounting port under the elastic acting force of the return spring and is extruded and fixed by the upper end mounting component, so that the filter baffle is stably fixed in the inlet flow channel.

The further setting is that: the upper end mounting component comprises an annular shell, the upper end mounting opening is also annular for placing the shell, and after the shell is placed at the upper end mounting opening, four bolts are screwed in the outside of the valve body to fix the shell in the upper end mounting opening; the two sides in the shell are both provided with limiting grooves, limiting push blocks are arranged in the limiting grooves, each limiting push block consists of an upper limiting push block and a lower limiting push block, and the section length of the upper end surface of each upper limiting push block is smaller than that of the lower end surface of each upper limiting push block, so that the inner side of each upper limiting push block is provided with an oblique upper end guide surface; the section length of the lower end surface of the lower end limiting push block is smaller than that of the upper end surface of the lower end limiting push block, so that the inner side of the lower end limiting push block is provided with an oblique lower end guide surface, and the upper end surface of the lower end limiting push block is fixed with the lower end surface of the upper end limiting push block; the outer side of the upper end part of the filtering baffle is provided with a positioning groove for the inner side of the upper end limiting push block and the inner side of the lower end limiting push block to be partially embedded, and the section of the positioning groove is triangular;

a driving groove connected with the limiting groove is formed in the shell, a compression spring is arranged in the driving groove in a compression mode, and the lower limiting push block and the upper limiting push block always have the trend of moving towards the inner side based on the elastic acting force of the compression spring;

the notch department of spacing groove be provided with the upper end welding piece that prevents that the spacing ejector pad in upper end from deviating from the spacing groove and prevent that the spacing ejector pad in lower extreme from deviating from the lower extreme welding piece in spacing groove.

The further setting is that: a first flexible buffer cushion and a second flexible buffer cushion which can be contacted with the upper end surface of the filtering baffle are arranged in the shell.

The further setting is that: an extension hole is formed in the center of the upper end mounting opening, a filler is arranged in the extension hole, an extrusion ring is arranged on the outer side of the filler and located in the extension hole, and a lower end gland is fixedly arranged at the lower ends of the extrusion ring and the filler.

The beneficial effects of the utility model reside in that:

1. the utility model discloses in set up filtering baffle in the inlet flow way and come to filter solid particle, the impurity that dopes among the fluid medium, effectively avoid sedimentary solid particle, impurity to the influence of flashboard, improve the gate valve and cut the leakproofness behind the runner. Meanwhile, in the utility model, the lower end in the inlet channel is provided with a lower end mounting port, a reset spring is arranged in the lower end mounting port, the upper end in the inlet channel is provided with an upper end mounting port, and an upper end mounting component is arranged in the upper end mounting port; after the lower end of the filtering baffle is arranged in the lower end mounting port, the upper end of the filtering baffle is embedded into the upper end mounting port under the elastic action of the return spring and is extruded and fixed by the upper end mounting component, so that the filtering baffle is stably fixed in the flow inlet channel, and the filtering baffle has the advantage of convenience and quickness in installation; when the filtering baffle needs to be taken out, the force is applied to pull the filter plate out of the upper end mounting opening, and then the filter plate is pulled out transversely, so that the device is convenient and fast. Meanwhile, the end part of the lower end mounting port facing the flow outlet channel is fixedly provided with a limit stop, and the filtering baffle can be stably abutted against the limit stop under the driving of the fluid medium along the flowing direction of the fluid medium, so that the limit is realized.

2. The utility model discloses well upper end installation component has all seted up the spacing groove including annular casing in the both sides in the casing to be provided with spacing ejector pad in the spacing groove, filter baffle's upper end stretches into to the casing after, can be fixed by two spacing ejector pad centre grippings, lets filter baffle stable fix in the upper end installation mouth. Further, the utility model discloses structure to spacing ejector pad has been optimized, and spacing ejector pad comprises the spacing ejector pad of upper end and the spacing ejector pad of lower extreme, and the inboard of the spacing ejector pad of upper end has the oblique upper end spigot surface, and the inboard of the spacing ejector pad of lower extreme has the oblique lower extreme spigot surface, is provided with the spacing groove with upper end spigot surface and lower extreme spigot surface looks adaptation on the filtering baffle. The upper end guide surface and the lower end guide surface are arranged to have a guide effect, the filtering baffle can move upwards into the shell along the lower end guide surface, and when the filtering baffle needs to be disassembled, the filtering baffle can move downwards out of the shell along the upper end guide surface;

3. the utility model discloses still set up the driving groove that meets with the spacing groove in the casing to the compression is provided with compression spring at the driving groove, and the elastic force based on compression spring makes the spacing ejector pad of lower extreme and the spacing ejector pad of upper end have the trend towards inboard motion all the time, and then better centre gripping fixes filtering baffle.

4. The utility model discloses be provided with the flexible blotter of first flexible blotter and the flexible blotter of second that can contact with the up end of filtering baffle in the well casing, play the cushioning effect through the flexible blotter of first flexible blotter and the flexible blotter of second that set up.

5. The utility model discloses in through setting up the filler, can have the UNICOM between cutting off and the atmosphere, can not produce and reveal the phenomenon.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 2;

fig. 4 is an enlarged view of a portion C in fig. 1.

In the figure: 11. a valve body; 121. a flow inlet channel; 122. discharging the flow channel; 13. a support; 14. a valve stem; 15. a shutter plate; 21. a filtering baffle; 31. a lower end mounting port; 32. a return spring; 33. a limit stop block; 41. an upper end mounting port; 42. a housing; 43. a bolt; 51. a limiting groove; 52. an upper end welding block; 53. a lower end welding block; 61. the upper end is limited by a push block; 62. the lower end is limited by a push block; 611. an upper end guide surface; 621. a lower end guide surface; 71. a drive slot; 72. a compression spring; 81. a first flexible bumper pad; 82. a second flexible bumper pad; 91. an extension hole; 92. a filler; 93. an extrusion ring; 94. and a lower end gland.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, a gate valve with a filtering baffle plate includes a valve body 11, a flow channel for flowing a fluid medium is provided in the valve body 11, a support 13 is installed at the upper end of the valve body 11, a valve rod 14 is vertically installed in the support 13, a gate plate 15 penetrating the flow channel is fixedly installed at the lower end of the valve rod 14, the valve rod 14 drives the gate plate 15 to reciprocate along the axial direction of the valve rod 14, a valve seat matched with the gate plate 15 is provided in the valve body 11 to control the flow channel to be cut off/communicated, and the flow channel is partitioned by the gate plate 15 to form an inlet flow channel 121 and an outlet flow channel 122. The above conventional structure as a gate valve belongs to the prior art and is not further described herein.

A filtering baffle 21 matched with the inlet flow channel 121 is arranged in the inlet flow channel 121, and a plurality of filtering holes are formed in the filtering baffle 21; and the lower end in the inlet channel 121 is provided with a lower end mounting port 31, a return spring 32 is arranged in the lower end mounting port 31, the end part of the lower end mounting port 31 facing the outlet channel 122 is fixedly provided with a limit stop 33, the upper end in the inlet channel 121 is provided with an upper end mounting port 41, an upper end mounting member is arranged in the upper end mounting port 41, after the lower end of the filtering baffle 21 is arranged in the lower end mounting port 31, the upper end of the filtering baffle can be embedded into the upper end mounting port 41 under the elastic acting force of the return spring 32 and is extruded and fixed by the upper end mounting member, so that the filtering baffle 21 is stably fixed in the inlet channel 121.

The upper end mounting member comprises an annular shell 42, the upper end mounting port 41 is also annular for placing the shell 42, and after the shell 42 is placed in the upper end mounting port 41, four bolts 43 are screwed in the valve body 11 to fix the shell 42 in the upper end mounting port 41; both sides in the shell 42 are provided with limiting grooves 51, limiting push blocks are arranged in the limiting grooves 51, each limiting push block consists of an upper limiting push block 61 and a lower limiting push block 62, the section length of the upper end surface of the upper limiting push block 61 is smaller than that of the lower end surface thereof, and therefore the inner side of the upper limiting push block 61 is provided with an oblique upper end guide surface 611; the section length of the lower end surface of the lower end limiting push block 62 is smaller than that of the upper end surface thereof, so that the inner side of the lower end limiting push block 62 is provided with an oblique lower end guide surface 621, and the upper end surface of the lower end limiting push block 62 is fixed with the lower end surface of the upper end limiting push block 61; the outer side of the upper end part of the filtering baffle 21 is provided with a positioning groove for the inner side of the upper end limiting push block 61 and the lower end limiting push block 62 to be partially embedded, and the section of the positioning groove is triangular;

a driving groove 71 connected with the limiting groove 51 is further formed in the shell 42, a compression spring 72 is arranged in the driving groove 71 in a compression mode, and the lower end limiting push block 62 and the upper end limiting push block 61 always have a trend of moving towards the inner side based on the elastic acting force of the compression spring 72;

the notch of the limiting groove 51 is provided with an upper end welding block 52 for preventing the upper end limiting push block 61 from separating from the limiting groove 51 and a lower end welding block 53 for preventing the lower end limiting push block 62 from separating from the limiting groove 51.

In the housing 42, a first flexible cushion 81 and a second flexible cushion 82 are provided to be in contact with the upper end surface of the filtering baffle 21.

An extension hole 91 is formed in the center of the upper end mounting opening 41, a packing 92 is arranged in the extension hole 91, a squeezing ring 93 is arranged outside the packing 92, the squeezing ring 93 is located in the extension hole 91, and a lower end gland 94 is fixedly arranged at the lower ends of the squeezing ring 93 and the packing 92.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (4)

1. A gate valve with a filtering baffle comprises a valve body (11), wherein a flow channel for flowing of a fluid medium is formed in the valve body (11), a support (13) is installed at the upper end of the valve body (11), a valve rod (14) is vertically installed in the support (13), a gate plate (15) penetrating the flow channel is fixedly installed at the lower end of the valve rod (14), the valve rod (14) drives the gate plate (15) to reciprocate along the axial direction of the valve rod (14), a valve seat matched with the gate plate (15) is arranged in the valve body (11) to control the flow channel to be cut off or communicated, and the flow channel is divided by the gate plate (15) to form a flow inlet channel (121) and a flow outlet channel (122); the method is characterized in that:

a filtering baffle (21) matched with the flow inlet channel (121) is arranged in the flow inlet channel (121), and a plurality of filtering holes are formed in the filtering baffle (21); the filtering baffle plate is characterized in that a lower end mounting opening (31) is formed in the lower end of the inside of the flow inlet channel (121), a return spring (32) is arranged in the lower end mounting opening (31), a limit stop (33) is fixedly arranged at the end part, facing the flow outlet channel (122), of the lower end mounting opening (31), an upper end mounting opening (41) is formed in the upper end of the inside of the flow inlet channel (121), an upper end mounting component is arranged in the upper end mounting opening (41), after the lower end of the filtering baffle plate (21) is arranged in the lower end mounting opening (31), the upper end of the filtering baffle plate can be embedded into the upper end mounting opening (41) under the elastic action force of the return spring (32) and is extruded and fixed by the upper end mounting component, and therefore the filtering baffle plate (21) is stably fixed in the flow inlet channel (121).

2. The gate valve with the filtering baffle as claimed in claim 1, wherein: the upper end mounting component comprises an annular shell (42), the upper end mounting opening (41) is also annular so that the shell (42) can be placed, and after the shell (42) is placed at the upper end mounting opening (41), four bolts (43) are screwed outside the valve body (11) to fix the shell (42) in the upper end mounting opening (41); both sides in the shell (42) are provided with limiting grooves (51), a limiting push block is arranged in each limiting groove (51), each limiting push block consists of an upper limiting push block (61) and a lower limiting push block (62), and the section length of the upper end surface of each upper limiting push block (61) is smaller than that of the lower end surface of each upper limiting push block, so that the inner side of each upper limiting push block (61) is provided with an oblique upper end guide surface (611); the section length of the lower end surface of the lower end limiting push block (62) is smaller than that of the upper end surface of the lower end limiting push block, so that the inner side of the lower end limiting push block (62) is provided with an oblique lower end guide surface (621), and the upper end surface of the lower end limiting push block (62) is fixed with the lower end surface of the upper end limiting push block (61); the outer side of the upper end part of the filtering baffle (21) is provided with a positioning groove for the inner side of an upper end limiting push block (61) and a lower end limiting push block (62) to be partially embedded, and the section of the positioning groove is triangular;

a driving groove (71) connected with the limiting groove (51) is further formed in the shell (42), a compression spring (72) is arranged in the driving groove (71) in a compression mode, and the lower end limiting push block (62) and the upper end limiting push block (61) always have the trend of moving towards the inner side based on the elastic acting force of the compression spring (72);

the notch of the limiting groove (51) is provided with an upper end welding block (52) for preventing the upper end limiting push block (61) from being separated from the limiting groove (51) and a lower end welding block (53) for preventing the lower end limiting push block (62) from being separated from the limiting groove (51).

3. A gate valve with filtering baffle according to claim 2, characterized in that: a first flexible buffer cushion (81) and a second flexible buffer cushion (82) which can be contacted with the upper end surface of the filtering baffle (21) are arranged in the shell (42).

4. The gate valve with the filtering baffle as claimed in claim 2, wherein: an extension hole (91) is formed in the center of the upper end mounting opening (41), a packing (92) is arranged in the extension hole (91), a squeezing ring (93) is arranged on the outer side of the packing (92), the squeezing ring (93) is located in the extension hole (91), and a lower end gland (94) is fixedly arranged at the lower ends of the squeezing ring (93) and the packing (92).

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