CN218347946U

CN218347946U - Electrically controlled pressure reduction control valve structure

Info

Publication number: CN218347946U
Application number: CN202222667833.6U
Authority: CN
Inventors: 滕建辉
Original assignee: Ningbo Northen Electromechanical Manufacturing Co ltd
Current assignee: Ningbo Northen Electromechanical Manufacturing Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-01-20
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses an automatically controlled formula pressure reducing control valve structure, including valve body, pressure reducing structure and automatically controlled valve, the valve body is equipped with the air inlet, valve pocket and gas outlet, be equipped with pressure reducing structure in the valve pocket, pressure reducing structure includes case subassembly and piston assembly, the case subassembly is including the disk seat that has the valve port, slide and set up the case in the disk seat and set up the first elastic component of driving the valve core towards valve port one side motion in the disk seat, piston assembly includes the piston with valve pocket sliding fit and drives piston towards the gliding second elastic component of disk seat one side, the top of case is passed the valve port and is offset with the piston, separate into upper plenum and lower chamber with the valve pocket is sealed through the piston, upper plenum and the outside intercommunication of valve body, the valve body is equipped with first air guide way and second air guide way, the import of cavity and automatically controlled valve under the first air guide way intercommunication, the export and the gas outlet of second air guide way intercommunication automatically controlled valve can be accurate the control valve internal gas circuit break-make and control comparatively convenient through the automatically controlled valve.

Description

Automatically controlled formula pressure reduction control valve structure

Technical Field

The utility model relates to a technical field of pressure reduction control valve, in particular to automatically controlled formula pressure reduction control valve structure.

Background

Nowadays more and more people like shui nationality ecological box fish bowl, for the true aquaculture environment of simulation, not only can breed fish in the fish bowl, still can breed plants such as pasture and water, fish survive and need oxygen, generally let in oxygen in toward the fish bowl in order to supply fish to breathe, and the plant then needs carbon dioxide to survive, and the pressure reducing control valve structure on the current carbon dioxide generator is complicated, and is bulky, can't give vent to anger to carbon dioxide simultaneously and carry out accurate control.

Disclosure of Invention

The utility model aims at providing an automatically controlled formula decompression control valve structure, it is comparatively convenient to control through the gas circuit break-make in the automatically controlled valve can the accurate control valve body, and the decompression structure through in the valve body simultaneously can discharge after letting in the gaseous decompression to the set pressure in the valve body.

The above technical object of the present invention can be achieved by the following technical solutions: an electric control type pressure reduction control valve structure comprises a valve body, a pressure reduction structure and an electric control valve, wherein the valve body is provided with an air inlet, a valve cavity and an air outlet, the pressure reduction structure is arranged in the valve cavity and comprises a valve core assembly and a piston assembly, the valve core assembly comprises a valve seat with a valve port, a valve core arranged in the valve seat in a sliding mode and a first elastic piece arranged in the valve seat and used for driving the valve core to move towards one side of the valve port, the piston assembly comprises a piston in sliding fit with the valve cavity and a second elastic piece used for driving the piston to slide towards one side of the valve seat, the top of the valve core penetrates through the valve port to abut against the piston, the valve cavity is sealed and divided into an upper cavity and a lower cavity through the piston, the upper cavity is communicated with the outside of the valve body, the valve body is provided with a first air guide channel and a second air guide channel, the first air guide channel is communicated with the lower cavity and the inlet of the electric control valve, and the second air guide channel is communicated with the outlet and the air outlet of the electric control valve.

Further, the position that the valve body corresponds the gas outlet is equipped with the minitrim valve, the minitrim valve is including installation cover and adjusting screw, installation cover fixed mounting is in the valve body, and the installation cover is equipped with the inner chamber, and one side of the neighbouring gas outlet of inner chamber is equipped with the valve opening that is linked together with the gas outlet, and adjusting screw threaded connection is in the installation cover, is equipped with the sealing washer between adjusting screw and the installation cover, separates the cavity through the sealing washer and forms a sealed chamber, the lateral wall of installation cover is equipped with the first gas pocket of the sealed chamber of intercommunication, be equipped with the air cock with first gas pocket intercommunication on the installation cover, adjusting screw's the inner is equipped with the thimble that stretches into the valve opening, can control the degree of depth that the thimble stretches into the valve opening with the clearance size between control valve opening pore wall and the thimble through adjusting screw.

Furthermore, one side of the mounting sleeve, which is adjacent to the air outlet, is provided with a step hole communicated with the cavity, a valve nozzle is mounted in the step hole, and the valve hole is arranged in the valve nozzle.

Furthermore, the thimble is the toper structure, and the external diameter of keeping away from the valve opening diminishes towards the direction of neighbouring valve opening one side, and the thimble is at the in-process of constantly deepening the valve opening, and the clearance between thimble and the valve opening pore wall reduces gradually until shutoff valve opening.

Further, the air cock is including the cover establish the lantern ring in installation cover periphery and the shaping in the air cock portion of the lantern ring, is equipped with two sealing washers between lantern ring inner wall and the installation cover outer wall so that the lantern ring forms a sealed ring chamber with the installation cover, the one end and the first gas vent intercommunication in ring chamber, the other end of ring chamber is the air cock portion of ventilating even.

Furthermore, a fixed block is arranged in the valve seat, an upper cavity and a lower cavity are arranged in the fixed block, the valve element is in sliding fit with the wall of the lower cavity, an installation cavity communicated with the air inlet is arranged in the valve element, a second air hole communicated with the installation cavity and the upper cavity is formed in the side wall of the valve element, the first elastic element is arranged in the installation cavity, and the valve element has a tendency of moving towards the direction of sealing the valve port under the action of the first elastic element.

Furtherly, the top of valve body is equipped with the adapter, be equipped with the manometer on the adapter, the inner of adapter is equipped with inserts the post, be equipped with the intercommunication chamber in inserting the post, the sealed upper end that inserts the intercommunication chamber of contact of manometer, the piston be equipped with insert post sliding fit's spout, the one end and the intercommunication chamber intercommunication of spout, the other end and the lower chamber intercommunication of spout.

Further, the piston includes that sleeve and cover establish the piston body in the sleeve periphery, the sleeve with insert post sliding fit, be equipped with between piston body and the sleeve and insert the sealed complex sealing washer of outer wall of post, the spout sets up in the sleeve.

To sum up, the utility model discloses following beneficial effect has:

1. the gas circuit in the valve body can be accurately controlled through the electric control valve, the control is convenient, and meanwhile, the gas introduced into the valve body can be discharged after being decompressed to a set pressure through the decompression structure in the valve body;

2. the fine adjustment valve is externally connected to the position of the air outlet of the valve body, the on-off of the valve hole and the size of a gap between the hole wall of the valve hole and the ejector pin are manually controlled through the adjusting screw rod, and the output flow of the gas is changed by changing the size of the gap.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the valve element of the present invention when no gas is introduced.

Fig. 3 is a schematic structural view of the valve element of the present invention when gas is gradually introduced.

Fig. 4 is a schematic view of the valve core of the present invention when blocking the valve port.

Fig. 5 is a cross-sectional view of the present invention.

Fig. 6 is a schematic structural diagram of the trim valve of the present invention.

In the figure: 1. a valve body; 11. an air inlet; 12. a valve cavity; 121. an upper chamber; 122. a lower chamber; 13. an air outlet; 14. a first air guide passage; 15. a second air guide passage; 2. a pressure relief structure; 21. a valve core assembly; 211. a valve seat; 2111. a valve port; 212. a valve core; 2121. a second air hole; 213. a first elastic member; 214. a fixed block; 22. a piston assembly; 221. a piston; 2211. a sleeve; 2212. a piston body; 2213. a chute; 222. a second elastic member; 3. an electrically controlled valve; 31. an inlet; 32. an outlet; 4. a trim valve; 41. installing a sleeve; 411. sealing the cavity; 412. a first air hole; 413. a stepped bore; 42. adjusting the screw rod; 421. a thimble; 422. a gap; 43. an air tap; 431. a collar; 4311. an annular cavity; 432. an air nozzle part; 44. a valve nozzle; 441. a valve bore; 5. a transfer seat; 51. inserting a column; 511. a communicating cavity; 6. a pressure gauge; 7. an air inlet joint.

Detailed Description

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

As shown in fig. 1-6, an electrically controlled pressure reducing control valve structure includes a valve body 1, a pressure reducing structure 2, and an electrically controlled valve 3, where the valve body 1 has an air inlet 11, a valve cavity 12, and an air outlet 13, an air inlet joint 7 is installed at a position of the valve body 1 corresponding to the air inlet 11, the pressure reducing structure 2 is installed in the valve cavity 12, the pressure reducing structure 2 includes a valve core assembly 21 and a piston assembly 22, the valve core assembly 21 includes a valve seat 211 having a valve port 2111, a valve core 212 slidably installed in the valve seat 211, and a first elastic member 213 installed in the valve seat 211 and used for driving the valve core 212 to move toward the valve port 2111, the piston assembly 22 includes a piston 221 slidably fitted in the valve cavity 12 and a second elastic member 222 driving the piston 221 to slide toward the valve seat 211, a top of the valve core 212 abuts against the piston 221 through the valve port 2111, the piston 221 seals and divides the valve cavity 12 into an upper cavity 121 and a lower cavity 122, the upper cavity 121 communicates with an exterior of the valve body 1, the valve body 1 is provided with a first air guide passage 14 and a second air guide passage 15, the first air passage 14 communicates with an inlet 31 of the electrically controlled valve cavity 3, and an outlet 32 of the electrically controlled valve cavity 3.

A fixed block 214 is arranged in the valve seat 211, an upper cavity and a lower cavity are arranged in the fixed block 214, the valve core 212 is in sliding fit with the wall of the lower cavity, an installation cavity communicated with the air inlet 11 is arranged in the valve core 212, a second air hole 2121 communicated with the installation cavity and the upper cavity is arranged on the side wall of the valve core 212, the first elastic part 213 is arranged in the installation cavity, and the valve core 212 has a tendency of moving towards the direction of sealing the valve port 2111 under the action of the first elastic part 213.

The piston 221 includes a sleeve 2211 and a piston body 2212 sleeved on the periphery of the sleeve 2211, the sleeve 2211 is in sliding fit with the insertion column 51, a sealing ring in sealing fit with the outer wall of the insertion column 51 is arranged between the piston body 2212 and the sleeve 2211, the sliding groove 2213 is arranged in the sleeve 2211, and the upper end of the valve plug 212 abuts against the sleeve 2211.

The utility model discloses an automatically controlled valve 3 can be accurate control the gas circuit break-make in the valve body 1 and control comparatively convenient, simultaneously through the decompression structure 2 in the valve body 1 can discharge after letting in the gaseous decompression to the settlement pressure in the valve body 1, decompression structure 2's principle: when the electronic control type pressure reduction control valve is not connected to the carbon dioxide generator, the piston 221 presses the valve core 212 downwards under the elastic action of the second elastic part 222 so as to enable the valve port 2111 to be in an open state, after the electronic control type pressure reduction control valve is connected to the carbon dioxide generator, carbon dioxide gas upwards pushes the piston 221 to move upwards through the valve port 2111, when the elastic force of the second elastic part 222 and the gas pressure in the lower cavity 122 reach balance, the valve core 212 moves upwards under the elastic action of the first elastic part 213 so as to block the valve port 2111, and the pressure reduction effect is achieved, the pressure value of the pressure reduction structure 2 can be adjusted by replacing the second elastic part 222, and then the pressure output value of the carbon dioxide gas can be adjusted.

The position of the valve body 1 corresponding to the air outlet 13 is provided with a fine adjustment valve 4, the fine adjustment valve 4 includes a mounting sleeve 41 and an adjusting screw 42, the mounting sleeve 41 is fixedly mounted on the valve body 1, the mounting sleeve 41 is provided with an inner cavity, one side of the inner cavity adjacent to the air outlet 13 is provided with a valve hole 441 communicated with the air outlet 13, the adjusting screw 42 is in threaded connection with the mounting sleeve 41, a sealing ring is arranged between the adjusting screw 42 and the mounting sleeve 41, the cavity is partitioned by the sealing ring to form a sealing cavity 411, the side wall of the mounting sleeve 41 is provided with a first air hole 412 communicated with the sealing cavity 411, the mounting sleeve 41 is provided with an air tap 43 communicated with the first air hole 412, the inner end of the adjusting screw 42 is provided with an ejector pin 421 extending into the valve hole 441, the depth of the ejector pin 421 extending into the valve hole 441 can be controlled by the adjusting screw 42 to control a gap 422 between the hole wall of the valve hole 441 and the ejector pin 421, specifically, the ejector pin 421 is of a conical structure, the outer diameter of the ejector pin is gradually decreased toward the side adjacent to close the valve hole 441, and the ejector pin 421 is continuously extended into the valve hole wall 441, and the gap 422 between the ejector pin 421 and the valve hole wall 441 is gradually decreased until the gap 422 is sealed.

The position of the air outlet 13 of the valve body 1 is externally connected with a fine adjustment valve 4, the on-off of the valve hole 441 is manually controlled by screwing the adjusting screw 42, meanwhile, the size of a gap 422 between the hole wall of the valve hole 441 and the thimble 421 can be manually controlled, and the output flow of the air is changed by changing the size of the gap 422.

The mounting sleeve 41 is provided with a stepped hole 413 communicated with the cavity at one side adjacent to the air outlet 13, a valve mouth 44 is mounted in the stepped hole 413, and a valve hole 441 is arranged in the valve mouth 44, and the purpose of the arrangement is to facilitate the assembly of the adjusting screw rod 42.

The air faucet 43 comprises a sleeve ring 431 sleeved on the periphery of the mounting sleeve 41 and an air faucet part 432 formed on the sleeve ring 431, two sealing rings are arranged between the inner wall of the sleeve ring 431 and the outer wall of the mounting sleeve 41 to enable the sleeve ring 431 and the mounting sleeve 41 to form a sealed annular cavity 4311, one end of the annular cavity 4311 is communicated with the first air hole 412, and the other end of the annular cavity 4311 is connected with the air faucet part 432.

The top of valve body 1 is equipped with adapter 5, be equipped with manometer 6 on the adapter 5, the inner of adapter 5 is equipped with inserts post 51, be equipped with intercommunication chamber 511 in inserting post 51, the sealed upper end that inserts intercommunication chamber 511 of the contact of manometer 6, piston 221 be equipped with insert post 51 sliding fit's spout 2213, the one end and the intercommunication chamber 511 intercommunication of spout 2213, the other end and the lower cavity 122 intercommunication of spout 2213, can observe the gas pressure in the lower cavity 122 directly perceivedly through setting up manometer 6.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides an automatically controlled formula decompression control valve structure, includes valve body (1), decompression structure (2) and automatically controlled valve (3), its characterized in that: the valve body (1) is provided with an air inlet (11), a valve cavity (12) and an air outlet (13), a pressure reducing structure (2) is arranged in the valve cavity (12), the pressure reducing structure (2) comprises a valve core assembly (21) and a piston assembly (22), the valve core assembly (21) comprises a valve seat (211) with a valve port (2111), a valve core (212) arranged in the valve seat (211) in a sliding mode and a first elastic piece (213) arranged in the valve seat (211) and used for driving the valve core (212) to move towards one side of the valve port (2111), the piston assembly (22) comprises a piston (221) in sliding fit with the valve cavity (12) and a second elastic piece (222) used for driving the piston (221) to slide towards one side of the valve seat (211), the top of the valve core (212) penetrates through the valve port (2111) to abut against a piston (221), the valve cavity (12) is hermetically divided into an upper chamber (121) and a lower chamber (122) by the piston (221), the upper chamber (121) is communicated with the outside of the valve body (1), the valve body (1) is provided with a first air guide channel (14) and a second air guide channel (15), the first air guide channel (14) is communicated with the lower chamber (122) and an inlet (31) of the electric control valve (3), and the second air guide channel (15) is communicated with an outlet (32) and an air outlet (13) of the electric control valve (3) ).

2. An electrically controlled pressure reducing control valve structure according to claim 1, characterized in that: the position that valve body (1) corresponds gas outlet (13) is equipped with fine setting valve (4), fine setting valve (4) are including installing cover (41) and adjusting screw (42), install cover (41) fixed mounting in valve body (1), install cover (41) and be equipped with the inner chamber, one side that the inner chamber is close to gas outlet (13) is equipped with valve opening (441) that is linked together with gas outlet (13), adjusting screw (42) threaded connection is in installing cover (41), is equipped with the sealing washer between adjusting screw (42) and installing cover (41), separates the cavity through the sealing washer and forms a sealed chamber (411), the lateral wall of installing cover (41) is equipped with first gas pocket (412) of intercommunication sealed chamber (411), be equipped with air cock (43) with first gas pocket (412) intercommunication on installing cover (41), the inner of adjusting screw (42) is equipped with thimble (421) that stretch into valve opening (441), can control thimble (421) and stretch into the degree of depth of valve opening (441) with clearance (422) between control valve opening (441) and thimble (421 size through adjusting screw (42).

3. An electrically controlled pressure reducing control valve structure according to claim 2, characterized in that: one side of the mounting sleeve (41) adjacent to the air outlet (13) is provided with a stepped hole (413) communicated with the cavity, a valve nozzle (44) is mounted in the stepped hole (413), and the valve hole (441) is arranged in the valve nozzle (44).

4. An electrically controlled pressure reducing control valve structure according to claim 2 or 3, characterized in that: the thimble (421) is a taper structure, the outer diameter far away from the valve hole (441) decreases progressively towards the direction close to one side of the valve hole (441), and in the process that the thimble (421) continuously enters the valve hole (441), a gap (422) between the thimble (421) and the hole wall of the valve hole (441) is gradually reduced until the valve hole (441) is blocked.

5. An electrically controlled pressure reducing control valve structure according to claim 2, characterized in that: air cock (43) are equipped with two sealing rings so that lantern ring (431) and installation cover (41) form a sealed ring chamber (4311) including establishing lantern ring (431) and the air cock portion (432) of shaping in lantern ring (431) of installing cover (41) periphery between lantern ring (431) inner wall and installation cover (41) outer wall, the one end and first gas port (412) the intercommunication of ring chamber (4311), the other end of ring chamber (4311) is even ventilates mouth portion (432).

6. An electrically controlled pressure reducing control valve structure according to claim 1, characterized in that: a fixing block (214) is arranged in the valve seat (211), an upper cavity and a lower cavity are arranged in the fixing block (214), the valve core (212) is in sliding fit with the wall of the lower cavity, an installation cavity communicated with the air inlet (11) is arranged in the valve core (212), a second air hole (2121) communicated with the installation cavity and the upper cavity is formed in the side wall of the valve core (212), the first elastic piece (213) is arranged in the installation cavity, and the valve core (212) has a tendency of moving towards the direction of the sealed valve port (2111) under the action of the first elastic piece (213).

7. An electrically controlled pressure reducing control valve structure according to claim 1, characterized in that: the top of valve body (1) is equipped with adapter (5), be equipped with manometer (6) on adapter (5), the inner of adapter (5) is equipped with inserts post (51), be equipped with intercommunication chamber (511) in inserting post (51), the upper end that the contact seal of manometer (6) inserted intercommunication chamber (511), piston (221) be equipped with insert post (51) sliding fit's spout (2213), the one end and the intercommunication chamber (511) intercommunication of spout (2213), the other end and the lower cavity (122) intercommunication of spout (2213).

8. An electrically controlled pressure reducing control valve structure according to claim 7, characterized in that: piston (221) includes sleeve (2211) and establishes piston body (2212) in sleeve (2211) periphery, sleeve (2211) with insert post (51) sliding fit, be equipped with between piston body (2212) and sleeve (2211) with insert the sealed complex sealing washer of the outer wall of post (51), spout (2213) sets up in sleeve (2211).