CN217683440U

CN217683440U - Automatic air-supply barrier-removing valve

Info

Publication number: CN217683440U
Application number: CN202221378830.4U
Authority: CN
Inventors: 朱汉超
Original assignee: ZOUPING CHUANGXING ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Current assignee: ZOUPING CHUANGXING ENVIRONMENTAL PROTECTION EQUIPMENT CO Ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-10-28
Anticipated expiration: 2032-06-02

Abstract

The automatic air-supplying barrier-removing valve comprises a valve body, a valve cover is arranged at the bottom of the valve body, and a check valve communicated with an inner cavity of the valve body is arranged on the valve cover. The utility model has the advantages of: an automatic tonifying qi barrier removal valve, which comprises a valve body, install the check valve that is linked together with the inner chamber on the valve gap of valve body bottom, be connected through screw-thread fit between check valve and the valve body, the position periphery that check valve and valve body are connected is equipped with the rubber circle that is used as the buffering, still install the locking mechanism that can vertical migration on the check valve, the locking lever can restrict locking mechanism's vertical position, let locking mechanism compress tightly on the valve body, restrict the relative rotation of valve body and check valve, effectively delayed the metal fatigue under the high-frequency oscillation, still ensured between the sealing performance when guaranteeing joint strength between check valve and the valve body, let whole air conveying in-process can normally carry out the barrier removal operation, guarantee going on smoothly of air conveying.

Description

Automatic air-supply barrier-removing valve

Technical Field

The utility model belongs to the technical field of pneumatic conveying barrier removing equipment technique and specifically relates to an automatic tonifying qi barrier removing valve.

Background

The pneumatic conveying device has simple structure and convenient operation, can be used for horizontal, vertical or inclined conveying, and can simultaneously carry out physical operations or certain chemical operations such as heating, cooling, drying, air flow classification and the like of materials in the conveying process, thereby being widely applied. For avoiding the jam condition to appear in the transportation process, still install on the main pipeline of carrying and explode and blow the clearance barrier valve, explode and blow the installation of clearance barrier valve and generally install through screw-thread fit, the material can produce high frequency vibration under the drive of air current at air conveying's in-process, in long-time use, continuous high frequency vibration can let the hookup location department of clearance barrier valve can produce metal fatigue, influence its joint strength and sealing performance, it is troublesome to have brought for normal air conveying clearance barrier operation.

Disclosure of Invention

An object of the utility model is to provide an automatic tonifying qi barrier removal valve, the intercommunication has the check valve between valve body and the pneumatic conveying person in charge, and the position periphery that the check valve is connected with the valve body is equipped with the rubber circle that is used as the buffering, still installs locking mechanism on the check valve, compresses tightly the relative rotation that can restrict valve body and check valve on the valve body, delays the metal fatigue under the high-frequency vibration, has solved the problem among the prior art.

The utility model provides a technical scheme that its technical problem adopted is: an automatic tonifying qi clearance hinders valve, which comprises a valve body, the valve gap is installed to the bottom of valve body, install the check valve with valve body inner chamber looks UNICOM on the valve gap, wherein install the rubber circle in the valve gap, the go-between is installed to rubber circle fit-in, the one end and the go-between looks screw-thread fit of check valve, install the swivel nut through screw-thread fit at the other end of check valve, the vertical lift of check valve can be followed to the swivel nut, install annular layer board in the upper end of swivel nut, install locking mechanism between annular layer board and the valve gap, install the locking lever on the swivel nut, set up on the pipe wall of check valve with locking lever matched with locking arc wall, when the locking lever stretched into in the locking arc wall, annular layer board had the trend that compresses tightly locking mechanism on the valve gap all the time. The locking mechanism is an elastic plate arranged on the annular supporting plate, and when the elastic plate is tightly pressed on the valve cover, the relative rotation of the valve body and the check valve can be limited. The locking mechanism comprises a first friction plate arranged on the annular supporting plate, a second friction plate matched with the first friction plate is arranged at the bottom of the valve cover, and the first friction plate can limit the relative rotation of the valve body and the check valve when being tightly pressed on the second friction plate. Locking mechanism is including installing a plurality of locking unit on annular layer board, and a plurality of locking unit is the circumference and arranges, and every locking unit is all including setting up the installation cover in annular layer board inside, is equipped with locking ball and first spring in the installation cover, and first spring has the trend that lets the locking ball stretch out the installation cover all the time, and corresponding to the position of locking ball, matched with locking groove has been seted up on the valve gap, and when the locking ball was located locking inslot, the relative rotation of valve body and check valve can be restricted. The valve body is characterized in that a large piston cavity is formed in one end, close to the valve cover, of the valve body, a large piston is installed in the large piston cavity in a matched mode, a small piston cavity is formed in the valve body, far away from one end of the valve cover, a small piston is installed in the small piston cavity in a matched mode, the pressure area of the large piston is larger than that of the small piston, a first communication cavity is formed between the large piston cavity and the small piston cavity, a valve rod is connected between the large piston and the small piston and located in the first communication cavity, an axial hole and a radial hole which are communicated are formed in the valve rod and communicated with the large piston cavity, the radial hole is communicated with the first communication cavity, a second communication cavity is further formed between the first communication cavity and the small piston cavity, a pressure spring seat is installed on the valve body at one end of the small piston cavity, a pressure spring is installed between the pressure spring seat and the small piston, the pressure spring always has the tendency that the small piston is pushed to close the small piston cavity and the first communication cavity, and an air inlet is formed in the pressure spring seat and communicated with the small piston cavity. A sealing cavity is formed between the large piston cavity and the first communication cavity, a sealing convex edge matched with the sealing cavity is arranged on the periphery of the valve rod, the diameter of the sealing cavity is larger than that of the first communication cavity, and the diameter of the valve rod is smaller than that of the first communication cavity. The pressure gauge is installed in the second communicating cavity, the flow adjusting screw is installed on the valve body and can rotate to enter the second communicating cavity, and the flow adjusting screw can control the gas flow entering the first communicating cavity from the second communicating cavity. The check valve comprises a shell, a ventilation cavity is formed in the shell, a second spring, a spherical plug and a sealing ring are installed in the ventilation cavity, the sealing ring is located in the ventilation cavity close to one end of the valve cover, the spherical plug is fixed at one end of the second spring, and the second spring always tends to push the spherical plug to seal the sealing ring in a matched mode.

The utility model has the positive effects that: an automatic tonifying qi barrier removal valve, which comprises a valve body, install the check valve that is linked together with the inner chamber on the valve gap of valve body bottom, be connected through screw-thread fit between check valve and the valve body, the position periphery that check valve and valve body are connected is equipped with the rubber circle that is used as the buffering, still install the locking mechanism that can vertical migration on the check valve, the locking lever can restrict locking mechanism's vertical position, let locking mechanism compress tightly on the valve body, restrict the relative rotation of valve body and check valve, effectively delayed the metal fatigue under the high-frequency oscillation, still ensured between the sealing performance when guaranteeing joint strength between check valve and the valve body, let whole air conveying in-process can normally carry out the barrier removal operation, guarantee going on smoothly of air conveying.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a partial cross-sectional view of the structure of FIG. 1;

FIG. 3 is a schematic structural diagram of a locking mechanism consisting of a first friction plate and a second friction plate;

FIG. 4 is a schematic structural view of a locking mechanism composed of a plurality of locking units;

FIG. 5 is an enlarged view of the cross-sectional view taken along line A-A in FIG. 4;

FIG. 6 is an enlarged view taken along line B-B of FIG. 4;

FIG. 7 is a schematic view of the structure within the valve body;

FIG. 8 is a schematic view of the check valve;

fig. 9 is an enlarged view of a cross-sectional view taken along line C-C in fig. 2.

Detailed Description

An automatic tonifying qi valve of removing obstacles, as shown in fig. 1 and fig. 2, including valve body 1, valve gap 2 is installed to valve body 1's bottom, install the check valve 3 with 1 inner chamber looks UNICOM of valve body on the valve gap 2, the bottom of check valve 3 then is linked together with the air conveying main line, can blow in a large amount of high-pressure gas to the air conveying main line in through the control of valve body 1 to avoid taking place the jam condition.

In order to effectively delay metal fatigue under high-frequency vibration in the process of pneumatic transmission, as shown in fig. 2, a rubber ring 4 is installed in a valve cap 2, a connecting ring 5 is installed in the rubber ring 4 in a matching manner, one end of a check valve 3 is in threaded fit with the connecting ring 5, and the rubber ring 4 is arranged to avoid hard contact between the connecting ring 5 and a valve body 1 when the check valve 3 generates high-frequency vibration, so that an effective buffering and damping effect is achieved.

The other end of the check valve 3 is provided with a threaded sleeve 6 in a threaded fit mode, the threaded sleeve 6 can vertically lift along the check valve 3, an annular supporting plate 7 is arranged at the upper end of the threaded sleeve 6, a locking mechanism is arranged between the annular supporting plate 7 and the valve cover 2 and can be upwards abutted against the valve cover 2, and the valve body 1 and the check valve 3 are prevented from rotating and being separated from each other under the high-frequency vibration. In order to realize the rotation locking of the screw sleeve 6 on the check valve 3, a locking rod 8 is arranged on the screw sleeve 6, as shown in fig. 9, a locking arc-shaped groove 9 matched with the locking rod 8 is formed in the pipe wall of the check valve 3, the locking rod 8 and the screw sleeve 6 can be matched through threads, and an outer hexagon is further arranged on the locking rod 8. So that the turning-in of the locking lever 8 is effected by means of a spanner. When the locking rod 8 extends into the locking arc-shaped groove 9, the annular supporting plate 7 always has the tendency of pressing the locking mechanism on the valve cover 2, the purpose of limiting the rotation of the valve body 1 is achieved simultaneously by limiting the rotation of the annular supporting plate 7, and even under the high-frequency vibration in the pneumatic conveying process, the valve body 1 and the check valve 3 cannot be rotationally separated.

As shown in fig. 1 and 2, the locking mechanism is an elastic plate 10 mounted on the annular supporting plate 7, and when the elastic plate 10 is pressed against the valve cap 2, the relative rotation between the valve body 1 and the check valve 3 can be effectively limited by the upward pressing force and the friction force between the elastic plate 10 and the valve cap 2, so as to prevent the valve body 1 and the check valve 3 from being rotationally separated.

Further, as shown in fig. 3, the locking mechanism includes a first friction plate 11 mounted on the annular supporting plate 7, a second friction plate 12 mounted at the bottom of the valve cover 2 and cooperating with the first friction plate 11, and when the first friction plate 11 is pressed against the second friction plate 12, the relative rotation between the valve body 1 and the check valve 3 can be effectively limited by the friction force between the first friction plate 11 and the second friction plate, so as to prevent the valve body 1 and the check valve 3 from rotating and separating.

Further, as shown in fig. 4-6, the locking mechanism includes a plurality of locking units mounted on the annular supporting plate 7, the plurality of locking units are circumferentially arranged, each locking unit includes a mounting sleeve 13 disposed inside the annular supporting plate 7, a locking ball 14 and a first spring 15 are disposed in the mounting sleeve 13, and the first spring 15 always tends to allow the locking ball 14 to extend out of the mounting sleeve 13. Corresponding to the position of locking ball 14, seted up matched with locking groove 16 on valve gap 2, when locking ball 14 was located locking groove 16, can effectively restrict the relative rotation of valve body 1 and check valve 3, avoided valve body 1 and check valve 3 to produce the rotation separation, wherein locking ball 14 can play the effect of rotation locking, and first spring 15 then can play buffering absorbing effect to a certain extent.

As shown in fig. 7, a large piston cavity 17 is formed in one end of the valve body 1 close to the valve cap 2, a large piston 18 is installed in the large piston cavity 17 in a matching manner, a small piston cavity 19 is formed in the valve body 1 far away from one end of the valve cap 2, a small piston 20 is installed in the small piston cavity 19 in a matching manner, and the pressure receiving area of the large piston 18 is larger than that of the small piston 20.

First communicating cavity 21 has been seted up between big piston chamber 17 and the little piston chamber 19, be connected with valve rod 22 between big piston 18 and the little piston 20, valve rod 22 is located first communicating cavity 21, and valve rod 22 can drive big piston 18 and little piston 20 and carry out synchronous axial displacement, and axial displacement through little piston 20 realizes switching little piston chamber 19 and is linked together with first communicating cavity 21, little piston chamber 19 seals these two kinds of states with first communicating cavity 21 mutually.

An axial hole 23 and a radial hole 24 which are communicated are formed in the valve rod 22, the axial hole 23 is communicated with the large piston cavity 17, the radial hole 24 is communicated with the first communication cavity 21, and a second communication cavity 25 is further arranged between the first communication cavity 21 and the small piston cavity 19 so as to realize pressure difference balance at two ends of the small piston 20. The axial hole 23 and the radial hole 24 which are arranged in the valve rod 22 are formed into a passage for communicating the large piston cavity 17 and the small piston cavity 19, so that the production difficulty can be reduced, the on-way resistance can be reduced, high-pressure gas can be discharged more smoothly, and the materials at the blockage position can be dredged more effectively.

A pressure spring seat 26 is installed on the valve body 1 at one end of the small piston cavity 19, a pressure spring 27 is installed between the pressure spring seat 26 and the small piston 20, the pressure spring 27 always pushes the small piston 20 to seal the small piston cavity 19 and the first communication cavity 21, an air inlet 28 is formed in the pressure spring seat 26, and the air inlet 28 is communicated with the small piston cavity 19.

The material is carried through high-pressure air current in the pneumatic conveying main pipeline, just installs a clearance barrier valve at a distance of every on the conveying main pipeline, lets in high-pressure air supply at air inlet 28 position department, in case when taking place to block up in the conveying main pipeline, a large amount of high-pressure gas will blow in the conveying main pipeline in, blows off the material of jam, guarantees the normal pneumatic transport of material. When the conveying main pipeline is unobstructed, the barrier clearing valve is in a non-opening state, the small piston 20 seals the small piston cavity 19 and the first communicating cavity 21, the second communicating cavity 25 is communicated with the axial hole 23 through the radial hole 24, ventilation in the valve body 1 is kept, pressure intensity of each position in the valve body 1 is equal, gas pressure borne by the large piston 18 is smaller than gas pressure borne by the small piston 20 and elastic force of the pressure spring 27, the small piston 20 blocks the small piston cavity 19 from being communicated with the first communicating cavity 21, high-pressure gas enters from the air inlet 28, flows through the small piston cavity 19, the second communicating cavity 25, the first communicating cavity 21, the radial hole 24, the axial hole 23 and the large piston cavity 17 in sequence, enters the check valve 3 and enters the pneumatic conveying main pipeline through the check valve 3. The check valve 3 can make high-pressure gas flow out of the valve body 1 in a one-way mode, and can effectively prevent materials in the pneumatic transmission main pipeline from entering the valve body 1, so that the barrier removal valve is protected.

When the main pneumatic conveying pipeline is blocked, the pressure in the large piston cavity 17 rises, when the gas pressure borne by the large piston 18 is greater than the gas pressure borne by the small piston 20 and the elastic force of the pressure spring 27, the large piston 18 pushes the small piston 20 to vertically move upwards in the direction shown in fig. 7 through the valve rod 22, the small piston cavity 19 and the first communication cavity 21 are communicated instantaneously, a large amount of high-pressure gas in the small piston cavity 19 enters the large piston cavity 17 through the radial holes 24 and the axial holes 23 and is blown into the main pneumatic conveying pipeline through the check valve 3, and the blocked materials are blown away.

When the blocked materials are blown off, the air pressure in the large piston cavity 17 is reduced to an initial value, the small piston 20 moves downwards to reset under the action of the elastic force of the pressure spring 27, the small piston cavity 19 and the first communication cavity 21 are disconnected and communicated again, the barrier clearing valve is restored to a non-working state, meanwhile, the second communication cavity 25 is kept communicated with the radial hole 24 and the axial hole 23, normal ventilation in the valve body 1 is ensured, when the blockage does not occur, the air flow in the valve body 1 is obviously reduced, and the production cost can be reduced to a certain extent.

Further, a sealing cavity 29 is formed between the large piston cavity 17 and the first communicating cavity 21, a sealing convex edge 30 matched with the sealing cavity 29 is arranged on the periphery of the valve rod 22, the diameter of the sealing cavity 29 is larger than that of the first communicating cavity 21, the diameter of the valve rod 22 is smaller than that of the first communicating cavity 21, the sealing cavity 29 and the sealing convex edge 30 can ensure that the first communicating cavity 21 is not directly communicated with the large piston cavity 17 when the valve rod 22 vertically moves, but is communicated with the large piston cavity 17 through the radial hole 24 and the axial hole 23, and further, the small piston 20 and the large piston 18 can move due to pressure difference, and switching between different states is achieved.

Further, in order to facilitate real-time monitoring of the air pressure in the second communicating cavity 25, a pressure gauge 31 is installed in the second communicating cavity 25, and the pressure gauge 31 can display the air pressure in the second communicating cavity 25. A flow rate adjusting screw 32 is attached to the valve body 1, the flow rate adjusting screw 32 can be rotated to enter the second communicating chamber 25, and the flow rate adjusting screw 32 can control the flow rate of the gas entering the first communicating chamber 21 from the second communicating chamber 25.

Further, the check valve 3 may be an existing one-way valve structure, or may be a structure shown in fig. 8, the check valve 3 includes a housing 33, a vent cavity 34 is formed in the housing 33, a second spring 35, a spherical plug 36 and a sealing ring 37 are installed in the vent cavity 34, the sealing ring 37 is located in the vent cavity 34 near one end of the bonnet 2, the spherical plug 36 is fixed at one end of the second spring 35, and the second spring 35 always tends to push the spherical plug 36 to cooperate and seal the sealing ring 37.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims

1. The utility model provides an automatic tonifying qi clearance valve which characterized in that: the valve comprises a valve body (1), a valve cover (2) is installed at the bottom of the valve body (1), a check valve (3) communicated with an inner cavity of the valve body (1) is installed on the valve cover (2), a rubber ring (4) is installed in the valve cover (2), a connecting ring (5) is installed in the rubber ring (4) in a matched mode, one end of the check valve (3) is in threaded fit with the connecting ring (5), a threaded sleeve (6) is installed at the other end of the check valve (3) through threaded fit, the threaded sleeve (6) can vertically lift along the check valve (3), an annular supporting plate (7) is installed at the upper end of the threaded sleeve (6), a locking mechanism is installed between the annular supporting plate (7) and the valve cover (2), a locking rod (8) is installed on the threaded sleeve (6), a locking arc-shaped groove (9) matched with the locking rod (8) is formed in the pipe wall of the check valve (3), and when the locking rod (8) stretches into the locking arc-shaped groove (9), the annular supporting plate (7) always tends to tightly press the locking mechanism on the valve cover (2).

2. The automatic air-supplying obstacle clearing valve according to claim 1, characterized in that: the locking mechanism is an elastic plate (10) arranged on the annular supporting plate (7), and when the elastic plate (10) is tightly pressed on the valve cover (2), the valve body (1) and the check valve (3) can be limited to rotate relatively.

3. The automatic air-replenishing barrier-removing valve according to claim 1, wherein: the locking mechanism comprises a first friction plate (11) arranged on the annular supporting plate (7), a second friction plate (12) matched with the first friction plate (11) is arranged at the bottom of the valve cover (2), and when the first friction plate (11) is tightly pressed on the second friction plate (12), the valve body (1) and the check valve (3) can be limited to rotate relatively.

4. The automatic air-supplying obstacle clearing valve according to claim 1, characterized in that: locking mechanism is including installing a plurality of locking unit on annular layer board (7), a plurality of locking unit is the circumference and arranges, every locking unit is all including setting up installation cover (13) inside annular layer board (7), be equipped with locking ball (14) and first spring (15) in installation cover (13), first spring (15) have the trend that lets locking ball (14) stretch out installation cover (13) all the time, the position corresponding to locking ball (14), matched with locking groove (16) have been seted up on valve gap (2), when locking ball (14) are located locking groove (16), can restrict the relative rotation of valve body (1) and check valve (3).

5. The automatic air-replenishing barrier-removing valve according to claim 1, wherein: the pressure spring valve is characterized in that a large piston cavity (17) is formed in one end, close to a valve cover (2), of the valve body (1), a large piston (18) is installed in the large piston cavity (17) in a matched mode, a small piston cavity (19) is formed in the valve body (1), far away from one end of the valve cover (2), a small piston (20) is installed in the small piston cavity (19) in a matched mode, the pressure area of the large piston (18) is larger than that of the small piston (20), a first communication cavity (21) is formed between the large piston cavity (17) and the small piston cavity (19), a valve rod (22) is connected between the large piston (18) and the small piston (20), the valve rod (22) is located in the first communication cavity (21), an axial hole (23) and a radial hole (24) which are communicated are formed in the valve rod (22), the axial hole (23) and the large piston cavity (17) are communicated with each other, the radial hole (24) is communicated with the first communication cavity (21), a second communication cavity (25) is further formed between the first communication cavity (21) and the small piston cavity (19), a pressure spring seat (27) is installed at one end of the valve body (27), and a pressure spring seat (27) which is always used for pushing the small piston seat (20), an air inlet (28) is arranged on the pressure spring seat (26), and the air inlet (28) is communicated with the small piston cavity (19).

6. The automatic air-replenishing barrier-removing valve according to claim 5, wherein: seted up sealed chamber (29) between big piston chamber (17) and first intercommunication chamber (21), the periphery of valve rod (22) is equipped with sealed protruding edge (30) with sealed chamber (29) matched with, and wherein the diameter in sealed chamber (29) is greater than the diameter in first intercommunication chamber (21), and the diameter in valve rod (22) is less than the diameter in first intercommunication chamber (21).

7. The automatic air-supplying obstacle clearing valve according to claim 5, wherein: a pressure gauge (31) is installed in the second communicating cavity (25), a flow adjusting screw (32) is installed on the valve body (1), the flow adjusting screw (32) can rotate to enter the second communicating cavity (25), and the flow adjusting screw (32) can control the gas flow entering the first communicating cavity (21) from the second communicating cavity (25).

8. The automatic air-replenishing barrier-removing valve according to claim 1, wherein: check valve (3) including casing (33), set up in casing (33) and ventilate chamber (34), install second spring (35), globular stopper (36) and sealing ring (37) in ventilating chamber (34), sealing ring (37) are located the chamber (34) of ventilating near valve gap (2) one end, and the one end at second spring (35) is fixed in globular stopper (36), second spring (35) have the trend that promotes globular stopper (36) and seal ring (37) cooperation seal all the time.