CN218294650U

CN218294650U - Quick-connect normally open solenoid valve

Info

Publication number: CN218294650U
Application number: CN202222874793.2U
Authority: CN
Inventors: 林哲锋
Original assignee: ZHEJIANG JIALEJIA ELECTRICAL APPLIANCES CO Ltd
Current assignee: ZHEJIANG JIALEJIA ELECTRICAL APPLIANCES CO Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-01-13
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a normally open solenoid valve of high-speed joint, which comprises a valve body, the coil structure, the pipe, driving spring and case subassembly, the case subassembly is including the movable valve core that can reciprocating motion set up in the pipe, and fix the stop collar in the pipe lower part and relative with the movable valve core, and the actuating lever in the guiding hole of stop collar is worn to locate by the removal, driving spring sets up between valve body and actuating lever and applys rebound's elastic force to the actuating lever, and be provided with the limit structure who is used for injecing actuating lever rebound distance between actuating lever and stop collar, adopt this technical scheme, the simple structure of this kind of case subassembly is compact, installation spare part is few, be favorable to reducing installation space, can realize opening or closing operation to the case mouth through reciprocating of control actuating lever, the start-up reaction rate is fast, effectively avoid the solenoid valve to take place the low phenomenon of flow in the time, promote the performance of product.

Description

Quick-connect normally open solenoid valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to quick connect's normally open solenoid valve.

Background

The electromagnetic valve is industrial equipment controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator and is not limited to hydraulic pressure and pneumatics. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valves may be classified into a normally open solenoid valve and a normally closed solenoid valve according to a control manner. The normally open electromagnetic valve is characterized in that the electromagnetic valve is closed when the coil is electrified, and the electromagnetic valve is opened after the coil is powered off.

For example, chinese patent document CN216813077U discloses an exhaust normally open solenoid valve, which includes a valve body, a valve core, a power member, and an elastic member, wherein the valve core is disposed in a valve core translation cavity of the valve body, so as to be capable of moving linearly relative to the valve body; the power part comprises a magnetic iron core and a coil, the magnetic iron core is opposite to the valve core, the valve core comprises a specific elastic sealing gasket, and the elastic part is connected with the valve body and the power part respectively. When the coil is in a power-off state at ordinary times, the magnetic iron core is far away from the valve core under the action of the elastic force of the elastic piece, so that the valve core can move freely and move towards the magnetic iron core under the action of water pressure, and the normally open electromagnetic valve is kept in a water-passing state and is normally open. However, the normally open solenoid valve structure has the following problems that the valve core of the normally open solenoid valve adopts an elastic sealing gasket mode, the whole structure is complex in arrangement, a plurality of installation parts are arranged, the volume is larger, the valve core can move freely under the action of water pressure in a normally open state, the low flow phenomenon is easy to occur in the low pressure state, and the starting speed is not fast enough.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the normally open solenoid valve's among the prior art case structure setting is complicated, and installation spare part is many, and the volume is done also big on the contrary, problem that the start-up speed is not fast yet to a simple structure is provided compactness, and installation spare part is few, reduces installation space, and the start-up reaction rate is fast, promotes the normally open solenoid valve of performance.

In order to solve the above technical problem, the utility model provides an including installing the coil structure on the valve body and setting up in the pipe at coil structure middle part, and set up the static magnetic conduction piece on pipe upper portion, the valve body includes medium passage and sets up the valve core mouth on medium passage, still includes:

the valve core assembly comprises a movable valve core which can be arranged in the guide pipe in a reciprocating manner, a limiting sleeve which is fixed at the lower part of the guide pipe and is opposite to the movable valve core, and a driving rod which is movably arranged in a guide hole of the limiting sleeve in a penetrating manner, the guide hole extends along the axial direction of the guide pipe, the upper end of the driving rod extends out of the guide hole and is matched and abutted with the movable valve core, and the lower end of the driving rod is provided with a sealing plug for sealing a valve core opening;

the driving spring is arranged between the valve body and the driving rod along the axial direction of the guide pipe and applies elastic force to the driving rod to drive the sealing plug to move towards one side far away from the valve core opening;

the limiting structure is arranged between the driving rod and the limiting sleeve and comprises a limiting opening arranged at the lower end of the guide hole and a limiting portion correspondingly arranged on the driving rod, and the limiting portion is matched and abutted in the limiting opening when the driving rod moves upwards under the action of the driving spring.

In the normally open solenoid valve, the limiting opening is a conical opening structure formed by extending and forming the outwards gradually-increased caliber from the lower end of the guide hole, and the limiting part is in a conical shape matched with and accommodated in the limiting opening.

In the normally open solenoid valve, the driving rod comprises a push rod part and a pressing part which are connected to two sides of the limiting part, the push rod part is arranged in the guide hole in a penetrating mode, and the sealing plug is arranged on the pressing part.

In the above normally open solenoid valve, the pressure applying part includes an installation clamping groove for installing the sealing plug, and a clearance groove connected to the inner side of the installation clamping groove, and a vent hole communicated with the clearance groove is arranged on the side wall of the driving rod.

In the normally open solenoid valve, an annular boss is formed on the side wall of the pressing portion, the medium channel comprises a circular groove suitable for accommodating the driving spring, the valve element opening is arranged in the middle of the bottom of the circular groove, two ends of the driving spring are respectively abutted to the annular boss and the bottom of the circular groove, and the driving rod drives the sealing plug to extend into the circular groove.

In the normally open solenoid valve, a movable gap is formed between the limiting sleeve and the movable valve core.

In the normally open solenoid valve, the top of the valve body is provided with an installation notch connected with the circular groove, the bottom of the coil structure is provided with a gland fastened in the installation notch, and a first sealing ring is arranged between the gland and the installation notch around the circular groove.

In the normally open solenoid valve, the stop collar comprises an annular cover which extends into the mounting notch and abuts against the top of the circular groove, and a second sealing ring is arranged between the annular cover and the gland.

In the normally open solenoid valve, the water inlet end and the water outlet end of the medium channel are respectively provided with a quick-plug connecting device.

In the normally open solenoid valve, the quick-plug connecting device comprises a clamping sleeve, a clamping jaw and an O-shaped sealing ring, the clamping sleeve is fixedly inserted into the water inlet end or the water outlet end, the clamping jaw penetrates through the clamping sleeve and is inserted into the water inlet end or the water outlet end, a limiting step for limiting the O-shaped sealing ring is arranged in the water inlet end or the water outlet end, the O-shaped sealing ring is extruded between the limiting step and the clamping jaw, and a plurality of buckle protrusions are arranged on the inner wall of one end of the clamping jaw at intervals along the circumferential direction.

The utility model discloses technical scheme has following advantage compared in prior art:

1. the utility model provides an among the normally open solenoid valve, the case subassembly comprises movable valve core, stop collar and the actuating lever that sets up in the pipe, and the upper end of this actuating lever passes the stop collar and forms transmission fit with movable valve core, and its lower extreme is provided with the sealing plug, and when the coil structure was in the outage, the actuating lever moved up along the guiding hole under drive spring's effect, pushed up the movable valve core simultaneously also upwards to drive the sealing plug and open the valve core mouth, made the solenoid valve keep in normally open state, and when the coil structure was in the circular telegram, the movable valve core at this moment pushed the actuating lever and moved down under the drive of electromagnetic force, thereby drove the sealing plug and tightly closed the valve core mouth, made the solenoid valve be in closed state; the valve core assembly designed by the technical scheme is simple and compact in structure, few in installation parts and beneficial to reducing installation space, the valve core opening can be opened or closed by controlling the driving rod to move up and down, the starting reaction speed is high, enough opening pressure is provided for the driving rod according to the driving spring, the opening distance between the driving rod and the valve core opening is kept unchanged in a normally open state, the phenomenon of low flow when the electromagnetic valve is at low pressure is effectively avoided, and the use performance of the product is improved.

2. The utility model provides an among the normally open solenoid valve, will spacing mouthful design for the bell mouth structure to and with spacing portion design for with spacing mouthful assorted cone shape, this kind of structure setting, when the actuating lever receives the drive of spring force along the guiding hole court when moving case one side shifts up, continue rebound with the restriction actuating lever in spacing mouthful through spacing portion butt, thereby play limiting displacement to the rebound distance of actuating lever.

3. The utility model provides an among the normally open solenoid valve, according to being provided with installation slot and clearance groove on the splenium of exerting pressure, this clearance groove is located the installation slot inboard, and the sealing plug is installed in the installation slot of the splenium of exerting pressure, through the air vent that is provided with the intercommunication clearance groove on the actuating lever lateral wall, and the atmospheric pressure balance of sealing plug both sides can be maintained in the design like this, avoids taking place the unbalanced condition of pressurized to make the sealing plug produce deformation effect when contacting with the crowded press of case mouth, guarantee sealing performance.

4. The utility model provides an among the normally open solenoid valve, coil structure passes through gland fastening connection in the installation notch to it is provided with first sealing washer to surround the circular recess between gland and installation notch, the stop collar has the annular lid that extends to in the installation notch, and be equipped with the second sealing washer between annular lid and gland, the benefit of design lies in like this, realize the seal installation between gland and the installation notch through first sealing washer, and realize the sealing contact between gland and the annular lid through the second sealing washer, just so form the sealed installation effect who surrounds to the circular recess, in order to prevent that fluid medium from taking place the sealed condition of leaking in mounting notch department, the leakproofness and the stability of installation between coil structure and the valve body have been guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.

Fig. 1 is a schematic sectional structure view of a normally open solenoid valve of the present invention in an open state;

fig. 2 is a schematic cross-sectional structural view of the normally open solenoid valve of the present invention in a closed state;

fig. 3 is a schematic view of the connection structure of the driving rod and the limiting sleeve of the present invention;

fig. 4 is an enlarged schematic structural view of the quick-connect connector of the present invention;

description of reference numerals: 1. a valve body; 11. a circular groove; 12. installing a notch; 13. a first seal ring; 14. a second seal ring; 2. a coil structure; 21. a conduit; 22. a static magnetic conductive block; 23. a gland; 3. a movable valve core; 4. a limiting sleeve; 41. a limiting port; 42. an annular cover; 5. a drive rod; 51. a limiting part; 52. a push rod part; 53. a pressing part; 54. an annular boss; 55. a clearance groove; 56. a vent hole; 6. a sealing plug; 7. a drive spring; 8. a media channel; 81. a valve element port; 9. a quick-connect connection device; 91. a card sleeve; 92. a claw; 93. an O-shaped sealing ring; 94. the buckle is convex.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment is described in detail below with reference to the drawings:

the present embodiment provides a valve assembly as shown in fig. 1-4, which includes a coil structure 2 mounted on a valve body 1, a conduit 21 disposed in the middle of the coil structure 2, and a static magnetic conductive block 22 disposed on the upper portion of the conduit 21, where the valve body 1 includes a medium channel 8 and a valve core opening 81 disposed on the medium channel 8, and further includes:

the valve core assembly comprises a movable valve core 3 which can be arranged in the guide pipe 21 in a reciprocating manner, a limiting sleeve 4 which is fixed at the lower part of the guide pipe 21 and is opposite to the movable valve core 3, and a driving rod 5 which is movably arranged in a guide hole of the limiting sleeve 4 in a penetrating manner, the guide hole is arranged along the axial extension of the guide pipe 21, the upper end of the driving rod 5 extends out of the guide hole to be matched and abutted with the movable valve core 3, and the lower end of the driving rod is provided with a sealing plug 6 for sealing a valve core port 81;

the driving spring 7 is arranged between the valve body 1 and the driving rod 5 along the axial direction of the guide pipe 21, and applies elastic force to the driving rod 5 to drive the sealing plug 6 to move towards the side far away from the valve core opening 81;

the limiting structure is arranged between the driving rod 5 and the limiting sleeve 4 and comprises a limiting opening 41 arranged at the lower end of the guide hole and a limiting part 51 correspondingly arranged on the driving rod 5, and the limiting part 51 is matched and abutted in the limiting opening 41 when the driving rod 5 moves upwards under the action of a driving spring.

In the above embodiment, the valve core assembly is composed of a movable valve core 3, a stop collar 4 and a drive rod 5 which are arranged in the conduit 21, the upper end of the drive rod 5 passes through the stop collar 4 to form transmission fit with the movable valve core 3, the lower end of the drive rod is provided with a sealing plug 6, when the coil structure 2 is in power-off state, the drive rod 5 moves upwards along the guide hole under the action of the drive spring 7, and pushes the movable valve core 3 upwards at the same time, so as to drive the sealing plug 6 to open the valve core opening 81, so that the electromagnetic valve is kept in a normally open state, a limit structure for limiting the upward movement distance of the drive rod 5 is arranged between the drive rod 5 and the stop collar 4, and when the coil structure 2 is in power-on state, the movable valve core 3 at this time pushes the drive rod 5 to move downwards under the drive of the sealing plug under the drive of the electromagnetic force, so as to drive the movable valve core 6 to close the valve core opening 81 tightly, so that the electromagnetic valve is in a closed state; adopt this technical scheme's normally open solenoid valve, the simple structure of this kind of case subassembly is compact, the installation spare part is few, be favorable to reducing the installation space, can realize opening or closing the operation to the case mouth through reciprocating of control actuating lever, the start-up reaction rate is fast, and provide enough big opening pressure for the actuating lever according to drive spring, make the actuating lever under normally open state and case mouth between the opening keep unchangeable, effectively avoid the solenoid valve to take place the low phenomenon of flow when the low pressure, promote the performance of product.

As a preferred embodiment, a movable gap is formed between the limiting sleeve 4 and the movable valve core 3, so that the driving rod 5 can extend into the movable gap to abut against the movable valve core 3, the limiting port 41 has a tapered port structure formed by extending the diameter of the guiding hole gradually increasing from the lower end of the guiding hole to the outside, and the limiting portion 51 has a tapered shape that is fittingly accommodated in the limiting port 41, and this structural arrangement is such that, when the driving rod 5 is driven by the spring force to move upwards along the guiding hole towards one side of the movable valve core 3, the limiting portion 51 abuts against the limiting port 41 to limit the driving rod 5 from continuing to move upwards, thereby limiting the upward movement distance of the driving rod.

The specific structure of the driving rod is described in detail below with reference to fig. 1-3:

the actuating lever 5 is including connecting push rod portion 52 and the portion 53 of exerting pressure of spacing 51 both sides, push rod portion 52 wears to establish in the guiding hole, sealing plug 6 sets up on the portion 53 of exerting pressure, the portion 53 of exerting pressure is including being used for the installation sealing plug 6's installation slot, and connect the inboard clearance groove 55 of installation slot, be provided with the intercommunication on the 5 lateral walls of actuating lever the air vent 56 of clearance groove 55, through the design air vent 56 can maintain the atmospheric pressure balance of sealing plug 6 both sides, avoids taking place the pressurized unbalance condition, thereby makes the sealing plug produces deformation effect when contacting with the crowded press of case mouth, guarantees sealing performance.

In order to install the driving spring 7 between the valve body 1 and the driving rod 5 in a positioning manner, an annular boss 54 is formed on the side wall of the pressing portion 53, the medium channel 8 comprises a water inlet pipeline, a water outlet pipeline and a circular groove 11 suitable for accommodating the driving spring 7, the water inlet pipeline is communicated with the circular groove 11, the valve core port 81 is arranged in the middle of the bottom of the circular groove 11 and is communicated with the water outlet pipeline, the driving rod 5 drives the sealing plug 6 to extend into the circular groove 11, so that two ends of the driving spring 7 are respectively abutted to the annular boss 54 and the bottom of the circular groove 11, the limiting installation effect is achieved on two ends of the driving spring 7, and the driving rod 5 has a moving tendency towards one side close to the movable valve core under the elastic force of the driving spring.

As shown in fig. 1-2, the top of the valve body 1 is provided with a mounting notch 12 connected with the circular groove 11, the bottom of the coil structure 2 is provided with a gland 23 fastened in the mounting notch 12, a first sealing ring 13 is arranged between the gland 23 and the mounting notch 12 around the circular groove 11, wherein the stop collar 4 comprises an annular cover 42 extending into the mounting notch 12 and abutting against the top of the circular groove 11, and a second sealing ring 14 is arranged between the annular cover 42 and the gland 23. The advantage of this design is that, through first sealing washer 13 realize between gland 23 and the installation notch 12 sealed installation, and realize through second sealing washer 14 between gland 23 and the annular cover 42 sealed contact, just so to form the sealed installation effect of encircleing to the circular recess to prevent the condition that fluid medium from taking place sealed leakage at installation notch, guaranteed the leakproofness and the stability of installation between coil structure and the valve body.

In this embodiment, as shown in fig. 1 and 4, a quick-plug connector 9 is respectively installed on the water inlet end and the water outlet end of the medium channel 8, as a specific structure, the quick-plug connector 9 includes a sleeve 91, a jaw 92 and an O-ring 93, the sleeve 91 is fixedly inserted into the water inlet end or the water outlet end, the jaw 92 penetrates through the sleeve 91 and is inserted into the water inlet end or the water outlet end, a limiting step for limiting the O-ring 93 is provided in the water inlet end or the water outlet end, the O-ring 93 is pressed between the limiting step and the jaw 92, a plurality of snap protrusions 94 are provided at intervals along a circumferential direction on an inner wall of one end of the jaw 92, and this structure is configured to insert an external pipeline into the jaw 92, so that the O-ring 93 is deformed by the extrusion of the external pipeline, thereby performing a sealing connection function on the external pipeline, and at the same time, the external pipeline inserted into the jaw 92 is limited and clamped by the snap protrusions to prevent the external pipeline from being separated from the quick-plug connector, thereby achieving a stable connection between the installed solenoid valve and an installed fast solenoid valve.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a quick-connect normally open solenoid valve, is in including coil structure (2) of installing on valve body (1) and setting up in pipe (21) at coil structure (2) middle part, and set up quiet magnetic conduction piece (22) on pipe (21) upper portion, valve body (1) includes medium passageway (8) and sets up valve core mouth (81) on medium passageway (8), its characterized in that still includes:

the valve core assembly comprises a movable valve core (3) which can be arranged in the guide pipe (21) in a reciprocating manner, a limiting sleeve (4) which is fixed at the lower part of the guide pipe (21) and is opposite to the movable valve core (3), and a driving rod (5) which is movably arranged in a guide hole of the limiting sleeve (4) in a penetrating manner, wherein the guide hole extends along the axial direction of the guide pipe (21), the upper end of the driving rod (5) extends out of the guide hole to be matched and abutted with the movable valve core (3), and the lower end of the driving rod is provided with a sealing plug (6) for sealing a valve core opening (81);

the driving spring (7) is arranged between the valve body (1) and the driving rod (5) along the axial direction of the guide pipe (21), and applies elastic force for driving the sealing plug to move towards one side far away from the valve core opening to the driving rod (5);

limit structure sets up between actuating lever (5) and stop collar (4), and it is including setting up spacing mouth (41) of guiding hole lower extreme and corresponding the setting are in spacing portion (51) on actuating lever (5), spacing portion (51) are in cooperation butt is in spacing mouth (41) when actuating lever (5) receive the effect rebound of drive spring (7).

2. The quick connect normally open solenoid valve of claim 1, wherein: the limiting opening (41) is a conical opening structure formed by extending and forming a conical opening with the caliber gradually increasing outwards from the lower end of the guide hole, and the limiting part (51) is in a conical shape which is accommodated in the limiting opening (41) in a matched mode.

3. The quick connect normally open solenoid valve of claim 2, wherein: a movable gap is formed between the limiting sleeve (4) and the movable valve core (3) in a relative mode.

4. The quick connect normally open solenoid valve of any one of claims 1-3, wherein: the driving rod (5) comprises a push rod part (52) and a pressing part (53), the push rod part (52) is connected to two sides of the limiting part (51), the push rod part (52) penetrates through the guide hole, and the sealing plug (6) is arranged on the pressing part.

5. The quick connect normally open solenoid valve of claim 4, wherein: the pressing portion (53) comprises an installation clamping groove used for installing the sealing plug (6) and a clearance groove (55) connected to the inner side of the installation clamping groove, and a vent hole (56) communicated with the clearance groove (55) is formed in the side wall of the driving rod (5).

6. The quick connect normally open solenoid valve of claim 5, wherein: an annular boss (54) is formed on the side wall of the pressing portion (53), the medium channel (8) comprises a circular groove (11) suitable for accommodating the driving spring (7), the valve core opening (81) is formed in the middle of the bottom of the circular groove, two ends of the driving spring (7) are respectively abutted to the annular boss (54) and the bottom of the circular groove (11), and the driving rod (5) drives the sealing plug (6) to extend into the circular groove (11).

7. The quick connect normally open solenoid valve of claim 6, wherein: the valve is characterized in that the top of the valve body (1) is provided with an installation notch (12) connected with the circular groove (11), the bottom of the coil structure (2) is provided with a gland (23) fastened in the installation notch (12), and a first sealing ring (13) is arranged between the gland (23) and the installation notch (12) around the circular groove.

8. The quick connect normally open solenoid valve of claim 7, wherein: the limiting sleeve (4) comprises an annular cover (42) extending into the mounting notch (12) and abutting against the top of the circular groove (11), and a second sealing ring (14) is arranged between the annular cover (42) and the pressing cover (23).

9. The quick connect normally open solenoid valve of any one of claims 5-8, wherein: and the water inlet end and the water outlet end of the medium channel (8) are respectively provided with a quick-plug connecting device (9).

10. The quick connect normally open solenoid valve of claim 9, wherein: the quick-plug connecting device (9) comprises a clamping sleeve (91), a clamping jaw (92) and an O-shaped sealing ring (93), the clamping sleeve (91) is fixedly inserted into the water inlet end or the water outlet end, the clamping jaw (92) penetrates through the clamping sleeve (91) and is inserted into the water inlet end or the water outlet end, a limiting step used for limiting the O-shaped sealing ring (93) is arranged in the water inlet end or the water outlet end, the O-shaped sealing ring (93) is extruded between the limiting step and the clamping jaw (92), and a plurality of buckling protrusions (94) are arranged on the inner wall of one end of the clamping jaw (92) at intervals along the circumferential direction.