Noise reduction type electromagnetic valve

Abstract

The utility model discloses a noise reduction type electromagnetic valve which comprises a shell, a containing ring is fixedly arranged on the inner wall of the shell, and a containing space used for containing a coil is arranged in the containing ring. A fixed iron core is further fixedly arranged in the shell, a positioning groove is formed in the fixed iron core, the positioning groove is in a T shape, a magnetism isolating gasket matched with the positioning groove is arranged on the positioning groove, an armature capable of moving along the central axis of the fixed iron core is arranged on one side of the magnetism isolating gasket, and a vulcanized rubber layer is fixedly arranged on the end side, close to the armature, of the magnetism isolating gasket. The armature can be tightly attached to the vulcanized rubber layer. The utility model has the main beneficial effects that the design is exquisite, the layout is reasonable, the arrangement of the vulcanized rubber layer and the elastic pad can prevent the armature from colliding with the magnetic isolation gasket, the impact noise can be effectively reduced, the safety is greatly improved, the service life is greatly prolonged, and the applicability is wider. In addition, the structure is easy to assemble and convenient to disassemble, replace and maintain, and the working efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to solenoid valve technical field, specifically, especially, a kind of noise reduction solenoid valve. BACKGROUND

[0002] At present, most of the market uses hydraulic valve control, short stroke, monostable state keeps, high power consumption, need to be powered on all the time, not energy-saving.

[0003] As the authorized announcement No.CN106545682B discloses a kind of solenoid valve, the solenoid valve has valve sleeve, magnet core is fixedly arranged in this valve sleeve and movable armature is arranged along the axial direction, wherein, in order to open and / or close solenoid valve, movable armature is moved to magnet core by the magnetic force caused by the magnetic structure component induction to overcome the force of spring, there is movable armature sleeve, the movable armature sleeve at least partially surrounds movable armature, wherein, movable armature sleeve is movable along the axial direction relative to movable armature and relative to valve sleeve. However, the solenoid valve in the process of working, movable armature will collide with magnet core in the process of moving towards or away from magnet core, generate larger noise, and easily cause damage to both, affect the service life of both, there is greater security risk. SUMMARY

[0004] The utility model aims at overcoming the deficiencies of prior art, provide a kind of noise reduction solenoid valve.

[0005] The utility model discloses the purpose is realized by the following technical scheme:

[0006] A kind of noise reduction solenoid valve, including shell, fixedly arranged with the receiving ring on the inner wall of the shell, the receiving ring is built-in with the receiving space for accommodating coil;Fixedly arranged with fixed core in the shell, the fixed core is equipped with positioning slot, the positioning slot is T-shaped, it is equipped with the magnetic separation gasket that is adapted thereto, one side of the magnetic separation gasket is equipped with movable armature that can move along the central axis of the fixed core, the end side of the magnetic separation gasket close to the movable armature is fixedly provided with vulcanized rubber layer, the movable armature can be tightly attached to the vulcanized rubber layer.

[0007] Preferably, a clamping groove is formed in the movable armature, a return spring is built-in in the clamping groove, the other end of the return spring is fixedly connected with positioning column, and the positioning column is fixedly arranged in the recess of the magnetic separation gasket.

[0008] Preferably, the end of the movable armature away from the fixed core is provided with an elastic pad, and the elastic pad is riveted on the movable armature by a rivet.

[0009] Preferably, a bearing sleeve is sleeved on the movable armature, and the bearing sleeve is fixedly arranged on the receiving ring.

[0010] Preferably, the shell is composed of a valve body and a valve seat, the valve body is provided with an outward convex part with a stepped cross section, the valve seat is provided with an inward concave part matched with the outward convex part, and the inward concave part and the outward convex part are fixed by laser welding or ultrasonic welding.

[0011] Preferably, the valve seat is provided with two sealing grooves, and each of the sealing grooves is provided with a sealing ring matched therewith.

[0012] Preferably, the fixed iron core is further provided with a light-weight groove, and the light-weight groove is communicated with the positioning groove.

[0013] The beneficial effects of the utility model mainly embody in:

[0014] 1. The design is ingenious, the layout is reasonable, the vulcanized rubber layer and the elastic pad can avoid collision between the armature and the magnetic isolation gasket, can effectively reduce the noise of impact, at the same time, prolong the service life, greatly improve the safety and service life, have wide applicability.

[0015] 2. The setting of the reset spring can be under the action of the reset spring after the electromagnetic valve breaks, the iron and the magnetic isolation gasket are separated from each other and contact with the shell, and the electromagnetic valve keeps closed state, which can facilitate next operation and greatly improve work efficiency.

[0016] 3. The setting of the bearing sleeve reduces friction, greatly reduces the wear of the armature, and prolongs the service life.

[0017] 4. The setting of the light-weight groove can reduce the weight of the electromagnetic valve, reduce the cost, and realize light weight. BRIEF DESCRIPTION OF DRAWINGS

[0018] The technical scheme of the utility model will be further described below in combination with the drawings:

[0019] Figure 1 The cross-sectional view of the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0020] The utility model will be described in detail in combination with the specific implementation manner shown in the drawings. However, these implementation manners are not limited to the utility model, and the conversion of structure, method or function made by the ordinary skilled in the art according to these implementation manners is also included in the protection scope of the utility model.

[0021] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0022] The utility model will be described in detail below in combination with the embodiments and with reference to the drawings.

[0023] As Figure 1 The utility model discloses a noise reduction type electromagnetic valve, including the casing 1, the inner wall of casing 1 is solid and is equipped with the accommodation ring 2, the accommodation ring 2 is built-in and is used to accommodate the coil 21's accommodation space 3. The casing 1 is also solid and is equipped with the fixed iron core 4, the fixed iron core 4 is equipped with the positioning groove 41, the positioning groove 41 is T-shaped, is provided with the magnetic spacer 5 that is suitable for it on it, one side of magnetic spacer 5 is equipped with the armature 6 that can move along the fixed iron core 4 center axis, the end side of magnetic spacer 5 and armature 6 close is solid and is equipped with vulcanized rubber layer, and the armature 6 can be close to vulcanized rubber layer. Above-mentioned, the setting of vulcanized rubber layer can avoid the collision of armature and magnetic spacer, can effectively reduce the noise of impact, and simultaneously, prolongs the service life, greatly improves security and service life, has the wide applicability.

[0024] The armature 6 is equipped with a clamping groove 61, the clamping groove 61 is built-in with a reset spring 62, the other end of reset spring 62 is solid with the positioning column 63, and the positioning column 63 is solid and is equipped in the recess 51 of magnetic spacer 5. The setting of reset spring 62 can be under the action of reset spring 62 after the electromagnetic valve breaks, and the iron and the magnetic spacer are separated, and the electromagnetic valve keeps the closed state by contacting with the casing 1, which is convenient for next operation, and greatly improves the work efficiency.

[0025] The end of the armature 6 away from the fixed iron core 4 is provided with an elastic pad 64, and the elastic pad 64 is riveted on the armature 6 by a rivet 65. The setting of the elastic pad 64 can avoid the collision of the armature and the casing, effectively reduce the noise of impact, prolong the service life, greatly improve the safety and the service life, and have wide applicability.

[0026] The bearing sleeve 66 is sleeved on the armature 6, the bearing sleeve 66 is solid and is equipped on the accommodation ring 2, and the setting of the bearing sleeve 66 reduces friction, greatly reduces the abrasion of the armature, and prolongs the service life.

[0027] In the preferred embodiment, the shell 1 is composed of a valve body 11 and a valve seat 12, the valve body 11 is provided with a stepped outer convex part 13, the valve seat 12 is provided with an inner concave part 14 matched with the outer convex part 13, and the inner concave part 14 and the outer convex part 13 are fixed by laser welding or ultrasonic welding. The valve seat 12 is provided with two sealing grooves 15, each of which is provided with a sealing ring 16 matched therewith, and the sealing ring 16 can ensure the sealing effect.

[0028] The fixed core 4 is also provided with a light weight groove 49, which is communicated with the positioning groove 41, and the light weight groove 49 can reduce the weight of the electromagnetic valve, reduce the cost, and realize light weight.

[0029] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0030] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the utility model, and they are not used to limit the protection scope of the utility model, and any equivalent embodiments or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

Claims

1. A noise-reducing solenoid valve, comprising a housing (1), characterized in that: A receiving ring (2) is fixedly provided on the inner wall of the housing (1). The receiving ring (2) has a receiving space (3) for accommodating the coil (21). A fixed iron core (4) is also fixedly provided inside the housing (1). A positioning groove (41) is provided on the fixed iron core (4). The positioning groove (41) is T-shaped and is provided with a magnetic shielding pad (5) that is compatible with it. An armature (6) that can move along the central axis of the fixed iron core (4) is provided on one side of the magnetic shielding pad (5). A vulcanized rubber layer is fixedly provided on the end side of the magnetic shielding pad (5) that is close to the armature (6). The armature (6) can be in close contact with the vulcanized rubber layer.

2. The noise-reducing solenoid valve according to claim 1, characterized in that: A slot (61) is provided on the armature (6), and a reset spring (62) is built into the slot (61). The other end of the reset spring (62) is fixedly connected to the positioning post (63), and the positioning post (63) is fixedly installed in the groove (51) of the magnetic shielding pad (5).

3. The noise-reducing solenoid valve according to claim 1, characterized in that: An elastic pad (64) is provided at one end of the armature (6) away from the fixed iron core (4), and the elastic pad (64) is riveted to the armature (6) by a rivet (65).

4. The noise-reducing solenoid valve according to claim 3, characterized in that: The armature (6) is fitted with a bearing sleeve (66), which is fixed on the receiving ring (2).

5. The noise-reducing solenoid valve according to claim 1, characterized in that: The housing (1) is composed of a valve body (11) and a valve seat (12). The (11) has an outward protrusion (13) with a stepped cross-section, and the valve seat (12) has an inward concave portion (14) that matches the outward protrusion (13). The inward concave portion (14) and the outward protrusion (13) are fixed together by laser welding or ultrasonic welding.

6. The noise-reducing solenoid valve according to claim 5, characterized in that: The valve seat (12) has two sealing grooves (15), and each sealing groove (15) is provided with a matching sealing ring (16).

7. The noise-reducing solenoid valve according to claim 1, characterized in that: A lightweight groove (49) is also provided on the fixed iron core (4), and the lightweight groove (49) is connected to the positioning groove (41).

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