CN211231641U - Gate valve with filtering capability - Google Patents

Abstract

The utility model discloses a gate valve with filtering capability, including the gate valve body, its characterized in that: the filter device is arranged on the brake valve body and is connected with the brake valve body into a whole, and the flow areas of the brake valve body media at the left end and the right end of the filter device are equal; the brake valve comprises a brake valve body, a filter device and a brake valve body, wherein a bulge is arranged on the brake valve body, a cavity is arranged in the bulge, the cross section of the cavity is arc-shaped, the cavity is communicated with the interior of the brake valve body, the filter device comprises a filter screen, an arc-shaped part attached to the cavity is arranged on the filter screen, the upper end of the cavity is communicated with the outside and is plugged after being connected with the brake valve body through a filter cover, and the filter cover is pressed at the upper end of the filter screen after; the gate valve has a good filtering function, and basically does not generate vibration when in use.

Description

Gate valve with filtering capability

Technical Field

The utility model relates to a gate valve with filtering capability belongs to valve technical field.

Background

The gate valve is widely used in water supply systems because of small resistance to medium flowing through and labor saving in opening and closing, but the common gate valve has no filtering function. If the impurities in the pipeline or in the medium flowing through the pipeline are more, a filtering device is required to be connected in series to filter and remove the impurities in the medium, and a Y-type filter is more installed in the current engineering; the gate valve and the filter are connected in series to realize the functions of switching and filtering at the same time, but the following problems exist in the practical use:

1. in order to meet the requirements of switching and filtering, a filter is connected in series, and a pair of wires or a section of pipeline is connected in series between the gate valve and the filter to play an excessive connection role, so that the installation cost is greatly increased;

2. because the threaded connection of the series filter pipeline is increased from two to four, more raw material belts are required to be wound in the installation process, the installation workload is increased, and the installation work is time-consuming, labor-consuming and material-wasting; the increased number of connecting threads also increases the probability of leakage;

3. if the installation space of the filter is small, the operation is inconvenient when the plug cover is unscrewed by a wrench.

4. In actual use, when filters are connected in series, the filters are generally connected in a flange mode, however, in the connection process, due to errors of flange holes, a medium flow port between a gate valve and the filters is displaced, the medium is blocked in circulation, and large vibration is easy to generate.

Meanwhile, the gate valve in the prior art has the defects that anyone can open and close at will, the safety is poor, and the valve does not have a telescopic function.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art, the condition to inaccurate appears in the medium circulation mouth that easily leads to filter and gate valve when connecting the filter, is obstructed when leading to the medium circulation, easily produces the shortcoming of vibration, provides a gate valve with filtering capability, and this gate valve has better filtering capability, does not produce the vibration basically during the use.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the basic idea of the utility model is that:

the gate valve comprises a gate valve body, wherein a filter screen is arranged in a right end side cavity of the gate valve body, a filter cover is pressed on the filter screen, the filter cover is matched with the gate valve body, a sealing cover is arranged between the filter cover and the gate valve body, and the filter cover and the gate valve body are connected and fixed through a hexagon bolt; the brake valve body comprises a valve body, a sleeve, a limiting screw rod, an O-shaped sealing ring, a rubber plate, a lower valve rod, a valve cover, a gland, an upper valve rod, a spring, a connecting block, a pressure rod and a hand wheel; the valve body has left and right valve seats on two sides to match the rubber plate, the valve rod nut is fixed with the rubber plate, the lower valve rod is connected with the valve rod nut through trapezoidal thread, the valve cover is connected with the valve body, the middle is sealed by rubber sealing ring, the upper end of the valve cover is provided with thrust bearing for fixing the lower valve rod, the valve cover is connected with the gland, the middle is sealed by rubber sealing ring, the lower valve rod is sealed with the gland by two O-shaped sealing rings, the middle of the upper end of the lower valve rod is provided with a hole (first hole) which is internally provided with a spring, the middle of the upper end of the lower valve rod is also provided with a special-shaped groove which is the same as the lower valve rod, the connecting block can move up and down in the groove, the middle of the upper valve rod is provided with a hole (second hole), the middle section is provided with thread, the pressure rod is connected with the upper valve rod through thread, the upper valve rod, the upper valve rod can be driven to rotate by the rotation of the hand wheel; the top of the upper valve rod is provided with threads, the hexagon bolt and the upper valve rod are connected through threads to press the hand wheel, under the normal condition, the connecting block is pressed down by the pressing rod, when the hand wheel is rotated, the upper valve rod is rotated, the lower valve rod cannot be rotated together, and the valve cannot be opened and closed normally. When operating personnel operated the on-off valve, need pull down hexagon bolt with the spanner, moved up with specialized tool anticlockwise rotation depression bar, the connecting block upwards moves under the spring force effect and is connected with last valve rod, and at this moment rotatory hand wheel drives the valve rod and rotates, and it is rotatory that the valve rod drives down the valve rod through the connecting block to go up the valve rod, and lower valve rod passes through trapezoidal thread and drives the offset plate and move up and down to realize opening and close of valve. The sleeve connected with the valve body can slide along the outer wall and is sealed by an O-shaped sealing ring, and the sleeve is connected and limited by a limiting screw rod and a nut.

Particularly, the utility model discloses specific scheme is as follows:

the utility model provides a gate valve with filtering capability, includes the gate valve body, its characterized in that: the brake valve further comprises a filter device which is arranged on the brake valve body and connected with the brake valve body into a whole, and the flow areas of the brake valve body media at the left end and the right end of the filter device are equal.

The brake valve comprises a brake valve body, a filter device and a filter cover, wherein a bulge is arranged on the brake valve body, a cavity is arranged in the bulge, the cross section of the cavity is arc-shaped, the cavity is communicated with the interior of the brake valve body, the filter device comprises a filter screen, an arc-shaped part attached to the cavity is arranged on the filter screen, the upper end of the cavity is communicated with the outside, the upper end of the cavity is plugged after the filter cover is connected with the brake valve body through the filter cover, and the upper end of the filter screen is.

Wherein, the upper end of the filter screen is in a curved arc shape.

The filter cover is connected with the brake valve body through a hexagon bolt, and a sealing ring is arranged between the filter cover and the brake valve body.

Wherein, the floodgate valve body includes the valve body, the valve gap of being connected with the valve body, connects the gland on the valve gap and can rotate and then control the valve rod that the offset plate moved from top to bottom, its characterized in that: the valve rod comprises an upper valve rod and a lower valve rod, the lower valve rod is rotatably connected with the valve cover, the lower end of the lower valve rod is connected with the rubber plate, the upper end of the lower valve rod is provided with a first hole and a special-shaped groove communicated with the first hole, the first hole is coaxial with the lower valve rod, a spring is arranged in the first hole, a connecting block is arranged in the special-shaped groove in a sliding and matching mode, and the spring acts on the connecting block; go up the valve rod and rotate through the clamping ring and install on the gland, go up the cover on the valve rod and be equipped with the hand wheel, go up be equipped with on the valve rod rather than with the second hole of axle center, second hole middle part is equipped with the screw thread, it is equipped with first dysmorphism groove to go up the valve rod lower extreme, first dysmorphism groove with the second hole communicates with each other, the connecting block can remove between dysmorphism groove and first dysmorphism groove, the downthehole depression bar that has set through the screw thread of second, the depression bar can be screwed up or screw down through specialized tool, it has hexagon bolt to go up valve rod end threaded connection, hexagon bolt installs the back and presses on the hand wheel.

Further preferably, a sleeve is sleeved at the inlet of the left end of the valve body coaxially, the sleeve can move left and right after being sleeved at the inlet of the left end of the valve body, an O-shaped sealing ring is arranged between the valve body and the wall of the sleeve, and the sleeve and the valve body are limited through a limiting device.

The limiting device comprises a limiting screw and a nut, the limiting screw is a bolt, a limiting plate is arranged on the valve body, the nut is fixed on the sleeve, and the bolt can be screwed with the nut after penetrating through the limiting plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a with filter equipment and floodgate valve body, promptly: the filtering device and the valve body form an integrated structure, and in actual use, a filter does not need to be additionally connected in series, and a pair of wires or a section of pipeline does not need to be additionally arranged to play a transitional connection role, so that the installation cost can be effectively reduced; secondly, connecting points can be effectively reduced, the mounting efficiency is higher in the mounting process, and meanwhile, the use of the raw material belt can be effectively reduced, the connecting points are reduced, and further leakage points are reduced; thirdly, the filter is prevented from being installed in a narrow place, and the embarrassment of inconvenient operation is avoided; fourthly, through constituting the integral type structure with filter equipment and valve body to, the floodgate valve body medium flow area who is located filter equipment left and right ends equals, like this, can guarantee that the medium can not be obstructed at the in-process that flows, guarantees the normal circulation of medium, reduces the production of vibration.

2. The utility model has the advantages that the arc part which is attached to the cavity is arranged on the filter screen, so that the positioning effect can be realized when the filter screen is installed; after the installation is finished, the cavity can play a limiting role in the filter screen; meanwhile, the filter screen is fixed through the filter cover, so that the normal use of the filter screen is ensured; and in the actual use, the cavity will form a transition region, and when the filter screen left end medium reached the cavity, because its flow area increases, its velocity of flow will reduce, and after the cavity department passed through, the filter screen right-hand member returned to former flow area, and the medium velocity of flow restores to former velocity of flow promptly, like this, can reduce the production of vibration.

3. The utility model discloses a use specialized tool to make the connecting block between the upper and lower valve rod throw off the back, install the hex bolts on the hand wheel on the upper valve rod, make its whole and ordinary gate valve not have difference, but the hand wheel of rotation, can't open and close the valve, only use specialized tool to move the depression bar and make the connecting block connect the upper and lower valve rod after, can just make the lower valve rod rotate, and then make the offset plate reciprocate, realize the opening and closing of valve; only special managers can operate the gate valve, effective management is achieved, non-managers are prevented from operating at will, the risk that the anti-theft valve special for installation can be effectively reduced and is manually damaged and a special imitation tool is opened is reduced, and the safety performance of the gate valve is higher.

4. The utility model discloses a one end at the valve body sets up can gliding sleeve pipe to and carry out spacing stop device with the sleeve pipe, can make the gate valve when using, need not add an expansion bend in addition, the gate valve collects valve and expansion bend function in an organic whole, has reduced the cost of installation, change, maintenance, simultaneously, only need in the installation with the other end contact pipe network of sleeve pipe and gate valve can, more convenient in the installation, need not carry out the connection several times, promptly: the expansion piece is connected to the pipe network, and the valve is connected to the pipe network;

more importantly, through setting up the sleeve pipe that can slide, stress that produces when can effectual elimination valve expend with heat and contract with cold.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of the special tool of the present invention.

The reference numbers of the valve body 1, the rubber plate 2, the sleeve 3, the limit screw 4, the nut 5, the valve rod nut 6, the O-shaped sealing ring 7, the lower valve rod 8, the flange gasket 9, the valve cover 10, the hexagon socket head cap screw 11, the special-shaped groove 12, the thrust bearing 13, the first special-shaped groove 14, the spring 15, the connecting block 16, the pressing ring 17, the pressing rod 18, the upper valve rod 19, the hand wheel 20, the hexagon bolt 21, the special tool 22, the pressing cover 23, the connecting flange 24, the bulge 26, the cavity 27, the filter screen 28, the arc part 29, the filter cover 30 and the sealing ring 31.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

A gate valve with filtering function comprises a gate valve body and a filtering device which is arranged on the gate valve body and connected with the gate valve body into a whole, wherein the flow areas of gate valve body media at the left end and the right end of the filtering device are equal.

Wherein, be equipped with a arch 26 on the brake valve body, a cavity 27 has in this arch 26, cavity 27 cross-section is arc, cavity 27 and the inside intercommunication of brake valve body, filter equipment includes filter screen 28, be equipped with the arc portion 29 with the laminating of cavity 27 on the filter screen 28, cavity 27 upper end and external intercommunication to carry out the shutoff with it after being connected with the brake valve body through a filter cover 30, filter cover 30 installation back pressure is in filter screen 28 upper end.

Wherein, the upper end of the filter screen 28 is in a curved arc shape.

Wherein, filter lid 30 and the floodgate valve body pass through hex bolts 21 to be connected, are located to be equipped with sealing washer 31 between filter lid 30 and the floodgate valve body.

It needs to be further explained that the brake valve body comprises a valve body 1, a valve cover 10 connected with the valve body 1, a gland 23 connected on the valve cover 10 and a valve rod capable of rotating to control the rubber plate 2 to move up and down; the filtering device is arranged on the valve body 1, namely: the arch 26 is arranged on the valve body 1, the cavity 27 is communicated with the inside of the valve body 1, the cavity 27 is blocked by a communicating point outside the cavity after the filter cover 30 is connected with the valve body 1, the filter cover 30 is connected with the valve body 1 through the hexagon bolt 21, and a sealing ring 31 is arranged between the filter cover 30 and the valve body 1.

Example 2

The embodiment is further optimized on the basis of embodiment 1, in this embodiment, the valve rod includes an upper valve rod 19 and a lower valve rod 8, the lower valve rod 8 is rotatably connected with a valve cover 10, the lower end of the lower valve rod 8 is connected with the rubber plate 2, the upper end of the lower valve rod 8 is provided with a first hole and a profiled groove 12 communicated with the first hole, the first hole is coaxial with the lower valve rod 8, a spring 15 is arranged in the first hole, a connecting block 16 is arranged in the profiled groove 12 in a sliding manner, and the spring 15 acts on the connecting block 16; go up valve rod 19 and rotate through clamping ring 17 and install on gland 23, go up the cover and be equipped with hand wheel 20 on valve rod 19, go up and be equipped with on valve rod 19 rather than the second hole with the axle center, second hole middle part is equipped with the screw thread, it is equipped with first dysmorphism groove 14 to go up the 19 lower extreme of valve rod, first dysmorphism groove 14 with the second hole communicates with each other, connecting block 16 can remove between dysmorphism groove 12 and first dysmorphism groove 14, the second is downthehole to have a depression bar 18 through the screw thread, depression bar 18 can be screwed up or unscrewed through specialized tool 22, it has hexagon bolt 21 to go up 19 tip threaded connection of valve rod, the back pressure is in after hexagon bolt 21 has installed on hand wheel 20.

In practice, the rubber plate 2 is located in the valve body 1, the rubber plate 2 can be matched with a left valve seat and a right valve seat in the valve body 1 to realize sealing of the valve, the lower valve rod 8 is connected with the rubber plate 2 through the valve rod nut 6, and the lower valve rod 8 is connected with the valve rod nut 6 through the trapezoidal thread; the lower valve rod 8 is connected with a valve cover 10 through a thrust bearing 13, and an O-shaped sealing ring 7 is arranged between the valve cover 10 and a gland 23.

A middle flange gasket 9 is arranged between the valve body 1 and the valve cover 10; the valve body 1 is connected with the valve cover 10 through an inner hexagon screw 11; the gland 23 is also connected with the valve cover 10 through the socket head cap screw 11.

An inner square is arranged on the hand wheel 20, an outer square is arranged on the upper valve rod 19, and the hand wheel 20 is sleeved on the upper valve rod 19 through the inner square and the outer square; the inner square is a square hole formed in the hand wheel 20, the outer square is a square part formed in the upper valve rod 19, the square part can be matched with the square hole, and therefore when the hand wheel 20 is rotated, the upper valve rod 19 can rotate along with the hand wheel 20.

Wherein, the upper end of the pressure lever 18 is provided with a convex polygon structure corresponding to the concave polygon structure of the special tool 22, so that the pressure lever 18 can be rotated only by the special tool 22 with the concave polygon structure, and the pressure lever 18 is lifted or lowered.

Wherein, the special-shaped groove 12 and the first special-shaped groove 14 are polygonal grooves, and the connecting block 16 is matched with the polygonal grooves; in actual use, the shaped groove 12 and the first shaped groove 14 may be three-sided, four-sided or five-sided; as long as the connecting block 16 is simultaneously located in the profile groove 12 and the first profile groove 14, the upper valve rod 19 and the lower valve rod 8 are connected, and when the upper valve rod 19 is rotated, the connecting block 16 transmits force to enable the lower valve rod 8 to rotate along with the upper valve rod 19.

Therefore, in practical use, the pressure lever 18 can only be moved by the special tool 22, and meanwhile, the hand wheel 20 and the upper valve rod 19 are fixed by pressing the hexagon bolt 21 on the hand wheel 20, so that the shape of the gate valve is basically consistent with that of a common valve; however, since the pressing rod 18 is arranged to push the connecting block 16 in the special-shaped groove 12, so that the connecting block 16 is separated from the first special-shaped groove 14, the connecting block 16 reaches a balanced state under the action of the spring 15 and the pressing rod 18; thus, when the hand wheel 20 is rotated, the upper valve rod 19 can rotate, and the lower valve rod 8 cannot rotate; when the valve needs to be operated, firstly, the hexagon bolt 21 is taken down, the pressing rod 18 is screwed by using the special tool 22, so that the pressing rod 18 moves upwards, at the moment, the connecting block 16 moves upwards into the first special-shaped groove 14 on the upper valve rod 19 under the action of the spring 15, and at the moment, the connecting block 16 is positioned in the special-shaped groove 12 and the first special-shaped groove 14; the hand wheel 20 is rotated, so that the upper valve rod 19 and the lower valve rod 8 can synchronously rotate, the rubber plate 2 can move, and opening and closing of the gate valve are further realized.

Example 3

The embodiment is further optimized on the basis of the embodiment 2, in the embodiment, the embodiment is further optimized on the basis of the embodiment 1, in the embodiment, a sleeve 3 is coaxially sleeved at an inlet at the left end of the valve body 1, the sleeve 3 is sleeved at the inlet at the left end of the valve body 1 and can move left and right, an O-shaped sealing ring 7 is arranged between the pipe walls of the valve body 1 and the sleeve 3, and the sleeve 3 and the valve body 1 are limited through a limiting device.

Further optimize, stop device includes stop screw 4 and nut 5, stop screw 4 is a bolt, be equipped with the limiting plate on the valve body 1, nut 5 is fixed on sleeve pipe 3, the bolt can close soon with nut 5 after passing the limiting plate.

In practical use, the end of the sleeve 3 and the other end of the valve body 1 are provided with connecting flanges 24, which are convenient for connecting into a pipe network.

Claims (7)

1. The utility model provides a gate valve with filtering capability, includes the gate valve body, its characterized in that: the brake valve further comprises a filter device which is arranged on the brake valve body and connected with the brake valve body into a whole, and the flow areas of the brake valve body media at the left end and the right end of the filter device are equal.

2. A gate valve with a filtering function according to claim 1, wherein: the brake valve comprises a brake valve body and is characterized in that a protrusion is arranged on the brake valve body, a cavity is arranged in the protrusion, the cross section of the cavity is arc-shaped, the cavity is communicated with the interior of the brake valve body, the filtering device comprises a filtering net, an arc-shaped part attached to the cavity is arranged on the filtering net, the upper end of the cavity is communicated with the outside, the cavity is connected with the brake valve body through a filtering cover and then is blocked, and the filtering cover is pressed at the upper end of the filtering net after being installed.

3. A gate valve with a filtering function according to claim 2, wherein: the upper end of the filter screen is in a curved arc shape.

4. A gate valve with a filtering function according to claim 2, wherein: the filter cover is connected with the brake valve body through a hexagon bolt, and a sealing ring is arranged between the filter cover and the brake valve body.

5. A gate valve with a filtering function according to claim 1, wherein: the gate valve body comprises a valve body, a valve cover connected with the valve body, a gland connected to the valve cover and a valve rod capable of rotating to control the rubber plate to move up and down, the valve rod comprises an upper valve rod and a lower valve rod, the lower valve rod is rotatably connected with the valve cover, the lower end of the lower valve rod is connected with the rubber plate, the upper end of the lower valve rod is provided with a first hole and a special-shaped groove communicated with the first hole, the first hole is coaxial with the lower valve rod, a spring is arranged in the first hole, a connecting block is arranged in the special-shaped groove in a sliding mode, and the spring acts on the connecting block; go up the valve rod and rotate through the clamping ring and install on the gland, go up the cover on the valve rod and be equipped with the hand wheel, go up be equipped with on the valve rod rather than with the second hole of axle center, second hole middle part is equipped with the screw thread, it is equipped with first dysmorphism groove to go up the valve rod lower extreme, first dysmorphism groove with the second hole communicates with each other, the connecting block can remove between dysmorphism groove and first dysmorphism groove, the downthehole depression bar that has set through the screw thread of second, the depression bar can be screwed up or screw down through specialized tool, it has hexagon bolt to go up valve rod end threaded connection, hexagon bolt installs the back and presses on the hand wheel.

6. The gate valve with a filtering function according to claim 5, wherein: the valve body is characterized in that a sleeve is coaxially sleeved at the inlet of the left end of the valve body, the sleeve can move left and right after being sleeved at the inlet of the left end of the valve body, an O-shaped sealing ring is arranged between the valve body and the wall of the sleeve, and the sleeve and the valve body are limited through a limiting device.

7. The gate valve with a filtering function according to claim 6, wherein: the limiting device comprises a limiting screw and a nut, the limiting screw is a bolt, a limiting plate is arranged on the valve body, the nut is fixed on the sleeve, and the bolt can be screwed with the nut after penetrating through the limiting plate.

Images