CN210178935U - Electromagnetic valve and gas device - Google Patents

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 bobbin 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 part is movably arranged in the limiting groove along the axial direction, and the movable iron core is connected with the sealing cap. The elastic piece is arranged between the sealing cap and the second mounting plate. Because first convex part sets up in the spacing inslot and only moves about in the spacing groove, the sleeve can prevent promptly that movable iron core from breaking away from out to alright in order to avoid among the assembling process inefficiency, change preface in-process compounding, and detect the low bad phenomenon of efficiency, work efficiency is higher.

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.

Disclosure of Invention

The utility model provides a first technical problem provide a solenoid valve, it can improve production efficiency effectively.

The second technical problem solved by the present invention is to provide a gas device, which can effectively improve the production efficiency.

The first technical problem is solved by the following technical scheme:

a solenoid valve, comprising: 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 second mounting plate is provided with a first through hole; the coil assembly is arranged on the magnetic conductive bracket and comprises a winding frame and a lead wound on the winding frame, and the winding frame 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 outer side wall of the closed end of the sleeve is in contact fit with the static iron core or is provided with a gap, and the inner side wall of the sleeve is provided with a first convex part; move iron core, sealed cap and elastic component, it movably set up in to move the iron core in the sleeve, the lateral wall that moves the iron core is equipped with along axial direction's spacing groove, first convex part is movably located along axial direction the spacing inslot, move the iron core with sealed cap links to each other, the elastic component set up in sealed cap with between the second mounting panel.

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 or be equipped with the clearance. Wherein, because first convex part sets up in the spacing inslot and only move about in the spacing groove, the sleeve can prevent promptly that movable iron core from breaking away from out to alright in order to avoid among the assembling process inefficiency, change preface in-process compounding, and the bad phenomenon that efficiency is low when detecting, work efficiency is higher. In addition, the sleeve can also realize moving iron core and quiet iron core looks mutual separation, avoids moving the quiet iron core of iron core direct contact.

In one embodiment, the first convex part is circumferentially arranged around the inner side wall of the sleeve, and the limiting groove is circumferentially arranged around the outer side wall of the movable iron core; or, the first convex parts are more than two, and the more than two first convex parts are arranged around the inner side wall of the sleeve at intervals in the circumferential direction.

In one embodiment, the first convex part is formed by extruding the side wall of the sleeve from outside to inside.

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 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; and/or, the outer fringe board is equipped with more than one first mounting hole, the second mounting panel is equipped with more than one second mounting hole corresponding with first mounting hole, the outer fringe board passes through the installed part and inserts first mounting hole with behind the second mounting hole with the second mounting panel is fixed continuous. So, the outer fringe board is comparatively installed on the second mounting panel firmly, and the structure is firm.

In one embodiment, the 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 solenoid valve further includes a magnetic pipe and a spacer, the magnetic pipe is sleeved outside the sleeve and located in the second through hole, and the spacer is disposed in the second through hole and located between the magnetic pipe and the stationary 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.

In one embodiment, the spacer is a spring, two ends of the spacer respectively abut against the magnetic conduction pipe and the static iron core, and the spacer is sleeved outside the sleeve; two ends of the winding frame respectively abut against the first mounting plate and the second mounting plate; the coil assembly further comprises a protective sleeve wound outside the lead and the winding frame; the first mounting plate, the side plate and the second mounting plate are of an integrated structure.

The second technical problem is solved by the following technical solutions:

a gas-fired device comprising: the electromagnetic valve.

Gas device, 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, because first convex part sets up in the spacing inslot and only move about in the spacing groove, the sleeve can prevent promptly that movable iron core from breaking away from out to alright in order to avoid among the assembling process inefficiency, change preface in-process compounding, and the bad phenomenon that efficiency is low when detecting, work efficiency is higher.

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 cross-sectional view of a solenoid valve according to an embodiment of the present invention;

fig. 4 is a schematic view of an operating state of the solenoid valve according to an embodiment of the present invention;

fig. 5 is a schematic view of another working state of the solenoid valve according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a movable iron core according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a sleeve 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, 132, second mounting hole, 20, coil pack, 21, bobbin, 211, second through-hole, 22, wire, 23, protective sheath, 30, quiet iron core, 31, lug, 40, sleeve, 41, first convex part, 42, outer fringe board, 421, first mounting hole, 422, second convex part, 43, dop, 50, move the iron core, 51, spacing groove, 60, sealing cap, 70, elastic component, 71, stationary blade, 80, magnetic conduction pipe, 90, separator.

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, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

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 to 3, 6 and 7, a solenoid valve includes a magnetic conductive bracket 10, a coil assembly 20, a stationary core 30, a sleeve 40, a movable core 50, a sealing cap 60 and an elastic member 70. The magnetic conduction support 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 second mounting plate 13 is provided with a first through hole 131. The coil assembly 20 is disposed on the magnetic conductive bracket 10, and the coil assembly 20 includes a bobbin 21 and a wire 22 wound on the bobbin 21. The bobbin 21 is provided with a second through hole 211 corresponding to the first through hole 131. The stationary core 30 is disposed in the second through hole 211. The sleeve 40 penetrates through the first through hole 131 and extends into the second through hole 211, the outer side wall of the closed end of the sleeve 40 is in contact fit with the static iron core 30 or is provided with a gap, and the inner side wall of the sleeve 40 is provided with a first convex part 41. The movable iron core 50 is movably disposed in the sleeve 40, a limiting groove 51 along the axial direction is disposed on an outer side wall of the movable iron core 50, the first protruding portion 41 is movably disposed in the limiting groove 51 along the axial direction, and the movable iron core 50 is connected with the sealing cap 60. The elastic member 70 is disposed between the sealing cap 60 and the second mounting plate 13.

Solenoid valve, compare produced beneficial effect with the background art: during the assembly process, the sleeve 40, the plunger 50, the sealing cap 60 and the elastic element 70 may be assembled together, and then the sleeve 40 is inserted into the second through hole 211 through the first through hole 131, and the outer sidewall of the closed end of the sleeve 40 is in contact fit with the stationary core 30. Wherein, because first convex part 41 sets up in spacing groove 51 and only move about in spacing groove 51, sleeve 40 can prevent promptly that movable core 50 from breaking away from out to alright in order to avoid the assembling process inefficiency, change preface in-process compounding, and detect the low bad phenomenon of efficiency, work efficiency is higher. In addition, the sleeve 40 can also realize the mutual separation of the movable iron core 50 and the static iron core 30, and avoid the direct contact of the movable iron core 50 with the static iron core 30.

In one embodiment, referring to fig. 3 and 7, the first protrusion 41 is circumferentially disposed around the inner sidewall of the sleeve 40, and the limiting groove 51 is circumferentially disposed around the outer sidewall of the movable iron core 50. Alternatively, the number of the first protrusions 41 is two or more, and the two or more first protrusions 41 are provided at intervals in the circumferential direction around the inner side wall of the sleeve 40.

Further, the first protrusion 41 is formed by extruding the sidewall of the sleeve 40 from outside to inside.

Referring to fig. 4 and 5, it can be understood that the size of the movable area of the first protrusion 41 in the limiting groove 51 along the axial direction is larger than the working stroke of the movable iron core 50, so that the movable iron core 50 can be ensured to move to close the air outlet.

In one embodiment, referring to fig. 3 and 7, an outer edge plate 42 extends outward from the open end of the sleeve 40, the outer edge plate 42 is laid on the second mounting plate 13, and the 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. 3 and 7, 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.

In one embodiment, referring to fig. 2, the outer edge plate 42 is provided with more than one first mounting hole 421, and the second mounting plate 13 is provided with more than one second mounting hole 132 corresponding to the first mounting hole 421. The outer flange 42 is fixedly connected to the second mounting plate 13 after being inserted into the first mounting hole 421 and the second mounting hole 132 through mounting members. Thus, the outer edge plate 42 is stably mounted on the second mounting plate 13, and the structure is stable.

Further, referring to fig. 2 and fig. 3, the elastic element 70 is a spring, the outer edge plate 42 is provided with a second protrusion 422 around the second through hole 211, and 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 convex part 422. So, second convex part 422 can play spacing fixed action to the spring, guarantees 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. 2 and fig. 3, a positioning hole 111 corresponding to the second through hole 211 is disposed on the first mounting plate 11, and an end of the stationary core 30 away from the second mounting plate 13 is in contact with the first mounting plate 11, and a protrusion 31 is disposed on an end surface of the stationary core 30 away from the second mounting plate 13. The bump 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. 2 and 3, the solenoid valve further includes a magnetic conduit 80 and a spacer 90. The magnetic conduction pipe 80 is sleeved outside the sleeve 40 and located in the second through hole 211, and the spacer 90 is disposed in the second through hole 211 and located between 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 22 is electrified.

Further, referring to fig. 2 and fig. 3, the spacer 90 is a spring, two ends of the spacer 90 respectively abut against the magnetic conduction pipe 80 and the stationary core 30, and the spacer 90 is sleeved outside the sleeve 40. Thus, the second elastic element 70 is in a compressed state, and applies an elastic force to the stationary core 30, so that the spacer 90, the flux tube 80 and the stationary core 30 can be stably installed in the second through hole 211. In addition, it is also convenient to mount the spacer 90, the flux tube 80, and the stationary core 30 into the second through hole 211 of the bobbin 21.

Further, referring to fig. 2 and 3, two ends of the bobbin 21 respectively abut against the first mounting plate 11 and the second mounting plate 13. Therefore, the electromagnetic valve is compact in structure and stable in combination.

Further, referring to fig. 2 and 3, the coil assembly 20 further includes a protective sleeve 23 wound around the lead 22 and the bobbin 21. Therefore, the protective sleeve 23 can protect the wires 22 wound outside the winding frame 21 to a certain degree, and the wires 22 are prevented from being scratched and damaged.

In one embodiment, the first mounting plate 11, the side plate 12 and the second mounting plate 13 are of a unitary structure.

In one embodiment, referring to fig. 1 to 3 again, a gas device includes the solenoid valve according to any one of the above embodiments.

Gas device, compare produced beneficial effect with the background art: gas device, compare produced beneficial effect with the background art: during the assembly process, the sleeve 40, the plunger 50, the sealing cap 60 and the elastic element 70 may be assembled together, and then the sleeve 40 is inserted into the second through hole 211 through the first through hole 131, and the outer sidewall of the closed end of the sleeve 40 is in contact fit with the stationary core 30. Wherein, because first convex part 41 sets up in spacing groove 51 and only move about in spacing groove 51, sleeve 40 can prevent promptly that movable core 50 from breaking away from out to alright in order to avoid the assembling process inefficiency, change preface in-process compounding, and detect the low bad phenomenon of efficiency, work efficiency is higher.

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 (10)

1. A solenoid valve, comprising:

the magnetic conduction 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 second mounting plate (13) is provided with a first through hole (131);

the coil assembly (20) is arranged on the magnetic conductive support (10), the coil assembly (20) comprises a bobbin (21) and a lead (22) wound on the bobbin (21), and the bobbin (21) is provided with a second through hole (211) corresponding to the first through hole (131);

a stationary core (30), the stationary core (30) being disposed in the second through hole (211);

the sleeve (40) penetrates through the first through hole (131) and extends into the second through hole (211), the outer side wall of the closed end of the sleeve (40) is in contact fit with the static iron core (30) or is provided with a gap, and the inner side wall of the sleeve (40) is provided with a first convex part (41);

move iron core (50), sealing cap (60) and elastic component (70), move iron core (50) movably set up in sleeve (40), the lateral wall that moves iron core (50) is equipped with along axial direction's spacing groove (51), first convex part (41) are movably located along axial direction in spacing groove (51), move iron core (50) with sealing cap (60) link to each other, elastic component (70) set up in sealing cap (60) with between second mounting panel (13).

2. The solenoid valve according to claim 1, characterized in that said first protrusion (41) is circumferentially arranged around the inner side wall of said sleeve (40) and said limit groove (51) is circumferentially arranged around the outer side wall of said plunger (50); or, the number of the first convex parts (41) is more than two, and the more than two first convex parts (41) are arranged around the inner side wall of the sleeve (40) at intervals in the circumferential direction.

3. The solenoid valve according to claim 2, characterized in that said first protrusion (41) is formed by extruding the side wall of said sleeve (40) from the outside to the inside.

4. The solenoid valve according to claim 1, 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 elastic member (70) being arranged between the sealing cap (60) and the outer edge plate (42).

5. A solenoid valve according to claim 4, characterised in that the peripheral plate (42) is provided with a chuck (43) connected to the second mounting plate (13); and/or, outer fringe board (42) are equipped with more than one first mounting hole (421), second mounting panel (13) are equipped with more than one second mounting hole (132) corresponding with first mounting hole (421), outer fringe board (42) insert through the installed part first mounting hole (421) with behind second mounting hole (132) with second mounting panel (13) are fixed continuous.

6. The electromagnetic valve according to claim 4, wherein the elastic member (70) is a spring, the outer edge plate (42) is provided with a second protrusion (422) around the second through hole (211) in the circumferential direction, the outer edge plate (42) is closely attached to the second mounting plate (13), the spring is sleeved outside the plunger (50), and one end of the spring is sleeved outside the second protrusion (422).

7. The electromagnetic valve according to claim 1, wherein a positioning hole (111) corresponding to the position of the second through hole (211) 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).

8. The electromagnetic valve according to claim 1, further comprising a magnetic conductive pipe (80) and a spacer (90), wherein the magnetic conductive pipe (80) is sleeved outside the sleeve (40) and located in the second through hole (211), and the spacer (90) is disposed in the second through hole (211) and located between the magnetic conductive pipe (80) and the stationary core (30).

9. The electromagnetic valve according to claim 8, wherein the spacer (90) is a spring, two ends of the spacer (90) respectively abut against the magnetic conduction pipe (80) and the static iron core (30), and the spacer (90) is sleeved outside the sleeve (40); two ends of the winding frame (21) respectively abut against the first mounting plate (11) and the second mounting plate (13); the coil component (20) further comprises a protective sleeve (23) wound outside the lead (22) and the bobbin (21); the first mounting plate (11), the side plate (12) and the second mounting plate (13) are of an integrated structure.

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

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