CN211738172U

CN211738172U - Electromagnetic valve and gas device

Info

Publication number: CN211738172U
Application number: CN202020087611.5U
Authority: CN
Inventors: 卢楚鹏; 江宇; 谢谊; 黄泽典; 刘桦
Original assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Current assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-10-23
Anticipated expiration: 2030-01-15

Abstract

The utility model relates to a solenoid valve and gas device, solenoid valve include magnetic conduction support, coil pack, quiet iron core, sleeve, move iron core, sealing cap and elastic component. The coil component is provided with a second through hole corresponding to the first through hole. The static iron core is arranged in the second through hole. The sleeve passes first through-hole and stretches into in the second through-hole, and the lateral wall and the inconsistent cooperation of quiet iron core of telescopic blind end, telescopic inside wall are equipped with first convex part. The movable iron core is movably arranged in the sleeve, the outer side wall of the movable iron core is provided with a limiting groove along the axial direction, the first convex portion is movably arranged in the limiting groove along the axial direction, the outer side wall of one end of the movable iron core is provided with an avoiding portion, and the movable iron core is connected with the sealing cap. The elastic piece is arranged between the sealing cap and the magnetic conduction bracket. The first convex part is arranged in the limiting groove and only moves in the limiting groove, namely the sleeve can prevent the movable iron core from separating out, and the production working efficiency is high; meanwhile, the movable iron core is provided with an avoiding part, so that the movable iron core and the sleeve are convenient to assemble and disassemble.

Description

Electromagnetic valve and gas device

Technical Field

The utility model relates to a ooff valve especially relates to a solenoid valve and gas device.

Background

The electromagnetic valve can act rapidly under rated voltage, and drives the valve rod to act through electromagnetic force, and the valve rod drives the valve to open and close. The traditional electromagnetic valve comprises a bracket, a coil assembly, a static iron core, a movable iron core, a sleeve body, a magnetic conduction plate and a bracket. In order to simplify the structure and prevent the sealing ring from losing efficacy, the electromagnetic valve adopts an integrated sleeve structure, the sealing ring is removed, and the leakage condition caused by the failure of the sealing ring is avoided. However, the sealing cap and the movable iron core are mutually separated and matched with the coil assembly in the bracket, and in the production process, the testing and mounting links, the sealing cap and the movable iron core are easily separated from the coil assembly, so that the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a solenoid valve and gas device, it can improve production efficiency effectively.

The technical problem is solved by the following technical scheme:

a solenoid valve, comprising: one end of the magnetic conduction bracket is provided with a first through hole; the coil assembly is arranged on the magnetic conduction bracket and is provided with a second through hole corresponding to the first through hole; the static iron core is arranged in the second through hole; the sleeve penetrates through the first through hole and extends into the second through hole, the closed end of the sleeve is in abutting fit with the static iron core, and a first convex part is arranged on the inner side wall of the sleeve; one end of the movable iron core is movably inserted into the sleeve, a limiting groove along the axial direction is formed in the outer side wall of the movable iron core, and an avoiding portion which extends to the limiting groove and can be used for the first convex portion to pass through is formed in the outer side wall of one end of the movable iron core; the first convex part is relative the movable iron core is rotatable so as to realize that the first convex part is in dodge the portion with position switching between the spacing groove, first convex part is relative along telescopic axial the movable iron core movably locates the spacing inslot, sealing cap and first elastic component, the other end of movable iron core with sealing cap links to each other, first elastic component locate sealing cap with between the magnetic conduction support.

Solenoid valve, compare produced beneficial effect with the background art: in the assembling process, can be in the same place sleeve, movable iron core, sealed cap and elastic component assembly, then pass first through-hole with the sleeve and stretch into the second through-hole again, the lateral wall and the inconsistent cooperation of quiet iron core of telescopic blind end. Wherein, the one end of moving the iron core is equipped with dodges the portion, in the assembly process between moving iron core and the sleeve, the clearance of dodging formation between portion and the sleeve can make first convex part pass through, then first convex part for move the rotatory certain angle of iron core so that it gets into the spacing groove, because first convex part sets up in the spacing groove and only moves about in the spacing groove, the sleeve can prevent to move the iron core promptly and break away from out, thereby alright in order avoid the assembly process inefficiency, the in-process compounding of changeing the preface, and detect the bad phenomenon that the efficiency is low, work efficiency is higher, and when moving iron core or sleeve and needing to be changed, rotatable iron core or sleeve are so that the position of dodging portion and first convex part corresponds, alright will move the iron core and take out from the sleeve, conveniently move iron core or telescopic maintenance and change.

Specifically, the first convex part is formed by extruding the side wall of the sleeve from outside to inside, the design process is simple, and the production cost is reduced.

In one embodiment, the avoiding part is an avoiding plane; or the avoiding part is an avoiding groove; or the avoiding part is the combination of an avoiding plane and an avoiding groove; the clearance formed by the separation of the avoidance plane and the inner side wall of the sleeve is not less than the projection height of the first convex part, and the clearance formed by the separation of the groove bottom of the avoidance groove and the inner side wall of the sleeve is not less than the projection height of the first convex part.

In one embodiment, the limiting groove is circumferentially arranged around the outer side wall of the movable iron core, so that the limiting groove is convenient to machine. In this embodiment, it can be understood that, when the avoiding portion is an avoiding plane, and one end of the movable iron core is inserted into the sleeve, the first convex portion passes through the avoiding plane, and at this time, in order to prevent the movable iron core from easily falling out of the sleeve in the production or use process, the movable iron core or the sleeve is only required to be rotated by 180 degrees; or when the avoidance part is an avoidance groove and one end of the movable iron core is inserted into the sleeve, the first convex part passes through the avoidance groove, and at this time, in order to prevent the movable iron core from easily falling out of the sleeve in the production or use process, the movable iron core or the sleeve only needs to be rotated by 180 degrees; or when the avoidance part is combined by the avoidance plane and the avoidance groove, when one end of the movable iron core is inserted into the sleeve, the first convex part passes through the avoidance plane and the avoidance groove, and at this time, in order to prevent the movable iron core from easily falling out of the sleeve in the production or use process, the movable iron core or the sleeve is only required to rotate 180 degrees.

In one embodiment, the magnetic conduction bracket comprises a first mounting plate, a side plate and a second mounting plate, the first mounting plate is connected with the second mounting plate through the side plate, and the first mounting plate, the side plate and the second mounting plate are of an integrally formed structure; first through-hole is located on the second mounting panel, so, first mounting panel, curb plate and second mounting panel are the integrated into one piece structure and are favorable to simplifying production technology to the holistic structural strength of multiplicable magnetic conduction support.

In one embodiment, the open end of the sleeve extends outward to form an outer edge plate, the outer edge plate is laid on the second mounting plate, and the first elastic member is disposed between the sealing cap and the outer edge plate. Therefore, on one hand, the closed end of the sleeve is in contact fit with the static iron core, and the outer edge plate extending outwards from the open end of the sleeve is laid on the second mounting plate, so that the gas can be prevented from leaking outwards through the sleeve, the sealing performance can be ensured, a sealing ring does not need to be arranged between the outer side wall of the static iron core and the inner side wall of the sleeve, and a sealing ring does not need to be arranged between the outer edge plate extending outwards from the open end of the sleeve and the magnetic conduction plate; on the other hand, the sealing performance is ensured without adopting a magnetic conduction plate and a plurality of sealing rings, the magnetic conduction plate and the plurality of sealing rings are omitted, and the number of parts is reduced, so that the structure can be effectively simplified, the assembly process is simplified, and the production efficiency is improved.

In one embodiment, the outer edge plate is provided with a chuck connected with the second mounting plate; so, the outer fringe board is comparatively installed on the second mounting panel firmly, and the structure is firm.

In one embodiment, the first elastic member is a spring, the outer edge plate is provided with a second protrusion around the second through hole, the outer edge plate is tightly attached to the second mounting plate, the spring is sleeved outside the movable iron core, and one end of the spring is sleeved outside the second protrusion. So, the second convex part can play spacing fixed action to the spring, guarantees structural stability. In addition, the other end of the spring is fixedly arranged on the sealing cap through a fixing piece.

In one embodiment, the first mounting plate is provided with a positioning hole corresponding to the second through hole, one end of the static iron core, which is far away from the second mounting plate, is in contact fit with the first mounting plate, and one end face of the static iron core, which is far away from the second mounting plate, is provided with a convex block, which is arranged in the positioning hole. So, in quiet iron core installation, the lug of quiet iron core is direct cartridge to be positioned in the locating hole, and installation operation is comparatively convenient, need not to adopt traditional riveting fixed mode installation fixed.

In one embodiment, the electromagnetic valve further includes a magnetic conduction pipe and a second elastic member, the magnetic conduction pipe and the second elastic member are respectively sleeved outside the sleeve and located in the second through hole, and two ends of the second elastic member respectively abut against the magnetic conduction pipe and the static iron core. Therefore, the magnetic conduction pipe is additionally arranged in the magnetic conduction bracket, and forms a magnetic conduction loop with the static iron core and the magnetic conduction bracket, so that the movable iron core can be better driven to move when the conducting wire is electrified. Simultaneously, the second elastic component is in compression state, exerts elastic force to quiet iron core, can realize that second elastic component, magnetic conduction pipe and quiet iron core install in the second through-hole comparatively firmly.

A gas-fired device comprising: the electromagnetic valve.

Due to the electromagnetic valve, the technical effect is brought by the electromagnetic valve and is the same as that of the electromagnetic valve, and therefore, the description is omitted.

Drawings

Fig. 1 is a schematic structural diagram of a solenoid valve according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a solenoid valve according to an embodiment of the present invention;

fig. 3 is a schematic view of an assembly structure of a solenoid valve according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a solenoid valve according to an embodiment of the present invention;

fig. 5 is a schematic view of a fitting structure of the sleeve and the movable iron core according to an embodiment of the present invention;

fig. 6 is a schematic view of another matching structure of the sleeve and the movable iron core according to an embodiment of the present invention.

Reference numerals:

10. magnetic conduction support, 11, first mounting panel, 111, locating hole, 12, curb plate, 13, second mounting panel, 131, first through-hole, 20, coil pack, 201, second through-hole, 30, quiet iron core, 31, lug, 40, sleeve, 41, first convex part, 42, outer fringe board, 421, second convex part, 43, dop, 50, movable iron core, 51, spacing groove, 52, dodge the portion, 60, sealing cap, 70, first elastic component, 71, stationary blade, 80, magnetic conduction pipe, 90, second elastic component.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.

In one embodiment, referring to fig. 1-6, a solenoid valve includes: the magnetic conduction bracket 10 is provided with a first through hole 131 at one end of the magnetic conduction bracket 10; the coil assembly 20 is arranged on the magnetic conductive bracket 10, and the coil assembly 20 is provided with a second through hole 201 corresponding to the first through hole 131; a stationary core 30, the stationary core 30 being disposed in the second through hole 201; the sleeve 40 penetrates through the first through hole 131 and extends into the second through hole 201, the closed end of the sleeve 40 is in contact fit with the static iron core 30, and a first convex part 41 is arranged on the inner side wall of the sleeve 40; one end of the movable iron core 50 is movably inserted into the sleeve 40, a limit groove 51 along the axial direction is formed in the outer side wall of the movable iron core 50, and an avoiding portion 52 which extends to the limit groove 51 and can be passed by the first convex portion 41 is formed in the outer side wall of one end of the movable iron core 50; the first protruding portion 41 is rotatable relative to the movable core 50 to realize the position switching of the first protruding portion 41 between the avoiding portion 52 and the limiting groove 51, the first protruding portion 41 is movably disposed in the limiting groove 51 relative to the movable core 50 along the axial direction of the sleeve 40, a sealing cap 60 and a first elastic member 70 are provided, the other end of the movable core 50 is connected with the sealing cap 60, and the first elastic member 70 is disposed between the sealing cap 60 and the magnetic conductive bracket 10.

Solenoid valve, compare produced beneficial effect with the background art: referring to fig. 3, in the assembling process, the sleeve 40, the movable core 50, the sealing cap 60 and the first elastic member 70 may be assembled together, the stationary core 30 and other components are disposed in the second through hole 201 of the coil assembly 20, the coil assembly 20 is mounted on the magnetic conductive bracket 10, then the sleeve 40 passes through the first through hole 131 and extends into the second through hole 201, and the outer sidewall of the closed end of the sleeve 40 is in contact fit with the stationary core 30. Wherein, one end of the movable iron core 50 is provided with an avoiding part 52, in the assembling process between the movable iron core 50 and the sleeve 40, a clearance formed between the avoiding part 52 and the sleeve 40 can lead the first convex part 41 to pass through, then, the first protrusion 41 is rotated by a certain angle relative to the plunger 50 so as to enter the retaining groove 51, and since the first protrusion 41 is disposed in the retaining groove 51 and only moves in the retaining groove 51, namely, the sleeve 40 can prevent the movable iron core 50 from separating out, thereby avoiding the bad phenomena of low efficiency in the assembling process, material mixing in the sequence transferring process and low efficiency in detection, having higher working efficiency, when the movable iron core 50 or the sleeve 40 needs to be replaced, the movable iron core 50 or the sleeve 40 can be rotated to enable the escape part 52 to correspond to the position of the first convex part 41, so that the movable iron core 50 can be pulled out of the sleeve 40, and the movable iron core 50 or the sleeve 40 can be conveniently repaired and replaced.

Specifically, referring to fig. 2, the first protrusion 41 is formed by extruding the sidewall of the sleeve 40 from outside to inside, which is simple in design process and reduces production cost.

In one embodiment, the avoiding portion 52 is an avoiding plane; or the avoiding part 52 is an avoiding groove; or the avoiding part 52 is a combination of an avoiding plane and an avoiding groove; the clearance formed by the separation of the avoidance plane and the inner side wall of the sleeve 40 is not less than the projection height of the first convex part 41, and the clearance formed by the separation of the groove bottom of the avoidance groove and the inner side wall of the sleeve 40 is not less than the projection height of the first convex part 41.

In one embodiment, referring to fig. 2 and fig. 5 to 6, the limiting groove 51 is circumferentially disposed around the outer side wall of the movable core 50, which is advantageous in that the limiting groove 51 can be conveniently processed, in this embodiment, the avoiding portion 52 is a combination of an avoiding plane and an avoiding groove, when one end of the movable core 50 is inserted into the sleeve 40, the first protrusion 41 passes through the avoiding plane and the avoiding groove, and in this case, in order to prevent the movable core 50 from easily falling out of the sleeve 40 in the production or use process, only the movable core 50 or the sleeve 40 needs to be rotated by 180 degrees.

It can be understood that the size of the range of the first protrusion 41 relative to the movable region of the movable iron core 50 in the limiting groove 51 along the axial direction of the sleeve 40 is not less than the working stroke of the movable iron core 50, so that the movable iron core 50 can drive the sealing cap 60 to open and close the air outlet. The specific working process is as follows: when the coil is powered on, the movable iron core 50 overcomes the elasticity of the first elastic piece 70 to drive the sealing cap 60 to move along the direction of the electromagnetic force, and the air outlet is opened; when the coil is powered off, the movable iron core 50 drives the sealing cap 60 to move along the elastic direction under the elastic action of the first elastic element 70, and the air outlet is closed.

In one embodiment, referring to fig. 1, the magnetic conductive bracket 10 includes a first mounting plate 11, a side plate 12 and a second mounting plate 13, the first mounting plate 11 is connected to the second mounting plate 13 through the side plate 12, and the first mounting plate 11, the side plate 12 and the second mounting plate 13 are an integrally formed structure; first through-hole 131 is located on the second mounting panel 13, so, first mounting panel 11, curb plate 12 and second mounting panel 13 are the integrated into one piece structure and are favorable to simplifying production technology to can strengthen the holistic structural strength of magnetic conduction support 10.

In one embodiment, the open end of the sleeve 40 extends outward to form an outer edge plate 42, the outer edge plate 42 is laid on the second mounting plate 13, and the first elastic member 70 is disposed between the sealing cap 60 and the outer edge plate 42. Therefore, on one hand, the closed end of the sleeve 40 is in contact fit with the static iron core 30, and the outer edge plate 42 extending outwards from the open end of the sleeve 40 is laid on the second mounting plate 13, so that the gas can be prevented from leaking outwards through the sleeve 40, the sealing performance can be ensured, a sealing ring does not need to be arranged between the outer side wall of the static iron core 30 and the inner side wall of the sleeve 40, and a sealing ring does not need to be arranged between the outer edge plate 42 extending outwards from the open end of the sleeve 40 and the magnetic conduction plate; on the other hand, the sealing performance is ensured without adopting a magnetic conduction plate and a plurality of sealing rings, the magnetic conduction plate and the plurality of sealing rings are omitted, and the number of parts is reduced, so that the structure can be effectively simplified, the assembly process is simplified, and the production efficiency is improved.

In one embodiment, referring to fig. 1, the outer edge plate 42 is provided with a clamp 43 connected to the second mounting plate 13. Thus, the outer edge plate 42 is stably mounted on the second mounting plate 13, and the structure is stable.

Further, referring to fig. 4, the first elastic element 70 is a spring, the outer edge plate 42 is provided with a second protrusion 421 around the second through hole 201, the outer edge plate 42 is tightly attached to the second mounting plate 13, the spring is sleeved outside the movable iron core 50, and one end of the spring is sleeved outside the second protrusion 421. Thus, the second protrusion 421 can limit and fix the spring, and ensure the structural stability. The other end of the spring is fixed to the sealing cap 60 by a fixing piece 71.

In an embodiment, referring to fig. 3 to 4, a positioning hole 111 corresponding to the second through hole 201 is formed in the first mounting plate 11, an end of the stationary core 30 away from the second mounting plate 13 is in contact with the first mounting plate 11, a protrusion 31 is formed on an end surface of the stationary core 30 away from the second mounting plate 13, and the protrusion 31 is disposed in the positioning hole 111. Therefore, in the installation process of the static iron core 30, the convex block 31 of the static iron core 30 is directly inserted into and positioned in the positioning hole 111, the installation operation is convenient, and the installation and the fixation are not required to be carried out by adopting the traditional riveting and fixing mode.

In one embodiment, referring to fig. 3-4, the electromagnetic valve further includes a magnetic conduction pipe 80 and a second elastic member 90, the magnetic conduction pipe 80 and the second elastic member 90 are respectively sleeved outside the sleeve 40 and located in the second through hole 201, and two ends of the second elastic member 90 respectively abut against the magnetic conduction pipe 80 and the stationary core 30. Therefore, the magnetic conduction pipe 80 is additionally arranged in the magnetic conduction bracket 10 to form a magnetic conduction loop with the static iron core 30 and the magnetic conduction bracket 10, so that the movable iron core 50 can be better driven to move when the lead is electrified.

In one embodiment, referring to fig. 1 to 6 again, a gas device includes the solenoid valve according to any one of the above embodiments.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A solenoid valve, comprising:

the magnetic conduction bracket (10), one end of the magnetic conduction bracket (10) is provided with a first through hole (131);

the coil component (20), the coil component (20) is arranged on the magnetic conduction bracket (10), and the coil component (20) is provided with a second through hole (201) corresponding to the first through hole (131);

a stationary core (30), the stationary core (30) being disposed in the second through hole (201);

the sleeve (40) penetrates through the first through hole (131) and extends into the second through hole (201), the closed end of the sleeve (40) is in interference fit with the static iron core (30), and a first convex part (41) is arranged on the inner side wall of the sleeve (40);

the movable iron core (50), one end of the movable iron core (50) is movably inserted into the sleeve (40), the outer side wall of the movable iron core (50) is provided with a limiting groove (51) along the axial direction, and the outer side wall of one end of the movable iron core (50) is provided with an avoiding part (52) which extends to the limiting groove (51) and can be passed by the first convex part (41);

the first convex part (41) can rotate relative to the movable iron core (50) to realize the position switching of the first convex part (41) between the avoidance part (52) and the limiting groove (51), and the first convex part (41) is movably arranged in the limiting groove (51) relative to the movable iron core (50) along the axial direction of the sleeve (40);

the magnetic iron core comprises a sealing cap (60) and a first elastic piece (70), the other end of the movable iron core (50) is connected with the sealing cap (60), and the first elastic piece (70) is arranged between the sealing cap (60) and the magnetic conduction support (10).

2. The electromagnetic valve according to claim 1, characterized in that the avoiding portion (52) is an avoiding plane; or the avoiding part (52) is an avoiding groove; or the avoiding part (52) is combined with the avoiding plane and the avoiding groove.

3. The solenoid valve according to claim 2, characterized in that said limit groove (51) is circumferentially arranged around the outer side wall of said plunger (50).

4. The electromagnetic valve according to claim 1, wherein the magnetic conductive bracket (10) comprises a first mounting plate (11), a side plate (12) and a second mounting plate (13), the first mounting plate (11) is connected with the second mounting plate (13) through the side plate (12), and the first mounting plate (11), the side plate (12) and the second mounting plate (13) are of an integrally formed structure; the first through hole (131) is formed in the second mounting plate (13).

5. The solenoid valve according to claim 4, characterized in that an outer edge plate (42) extends outwards from the open end of the sleeve (40), the outer edge plate (42) being laid on the second mounting plate (13), the first elastic element (70) being arranged between the sealing cap (60) and the outer edge plate (42).

6. A solenoid valve according to claim 5, characterised in that the peripheral plate (42) is provided with a clip (43) connected to the second mounting plate (13).

7. The electromagnetic valve according to claim 5, wherein the first elastic member (70) is a spring, the outer edge plate (42) is provided with a second protrusion (421) around the second through hole (201) in the circumferential direction, the outer edge plate (42) is closely attached to the second mounting plate (13), the spring is sleeved outside the movable iron core (50), and one end of the spring is sleeved outside the second protrusion (421).

8. The electromagnetic valve according to claim 4, characterized in that a positioning hole (111) corresponding to the position of the second through hole (201) is formed in the first mounting plate (11), one end of the static iron core (30) far away from the second mounting plate (13) is in contact fit with the first mounting plate (11), a convex block (31) is formed on one end face of the static iron core (30) far away from the second mounting plate (13), and the convex block (31) is arranged in the positioning hole (111).

9. The electromagnetic valve according to claim 8, further comprising a magnetic conduction pipe (80) and a second elastic member (90), wherein the magnetic conduction pipe (80) and the second elastic member (90) are respectively sleeved outside the sleeve (40) and located in the second through hole (201), and two ends of the second elastic member (90) respectively abut against the magnetic conduction pipe (80) and the stationary core (30).

10. A gas-fired device, comprising: a solenoid valve as claimed in any one of claims 1 to 9.