Flameout electromagnetic valve

Abstract

The utility model provides a flameout electromagnetic valve, and belongs to the technical field of automobile accessories. The problem that an existing flameout electromagnetic valve is short in service life is solved. The flameout electromagnetic valve comprises a valve shell, cooling fins are welded to the surface of the valve shell, a mounting insertion plate is welded to the rear side of the valve shell, a sleeve shell sleeves the rear side of the mounting insertion plate, mounting bolts are movably connected to the four corners of the sleeve shell in a penetrating mode, a cushioning seat is arranged on the rear side of the sleeve shell and comprises a fixing shell, and a connecting sliding plate is slidably connected to an inner cavity of the fixing shell; a damping spring is fixedly connected to the rear side of the connecting sliding plate, a damping pad adheres to the front side of the fixing shell, a movable iron core is installed at the top of an inner cavity of the valve shell in a penetrating mode, and a static iron core is installed at the bottom of the inner cavity of the valve shell. The motor has a vibration reduction function and is good in heat dissipation effect and long in service life.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, especially relates to a flameout electromagnetic valve. BACKGROUND

[0002] The flameout electromagnetic valve is one of the accessories of the automobile engine, which is a device for controlling the opening and closing of the fuel or air passage through the electric signal, and is used for forcibly cutting off the fuel supply or air intake of the engine to make it stop running quickly.

[0003] For example, the applicant designs an engine oil supply electromagnetic valve and applies for a patent [application number: 202021680076.0; authorized announcement number: CN212691004U], which includes a valve body, a moving iron core, a static iron core, a strong magnet, a wire holder, a maintenance coil, and a suction coil. The outer wall of the wire holder has a radially outward protruding separation part, the maintenance coil and the suction coil are wound on the wire holder and separated by the separation part, a mounting seat in the shape of a cylinder is arranged between the static iron core and the wire holder, the two ends of the mounting seat are inserted into the static iron core and the wire holder respectively, the mounting seat has a radially outward protruding protruding ring in the middle and the strong magnet is sleeved outside the protruding ring, and a top rod axially penetrates through the mounting seat. The bottom of the valve body is provided with a base, and the base and the top rod are provided with an elastic component for providing elastic force to make the top rod always abut against the moving iron core.

[0004] The coil of the above-mentioned engine oil supply electromagnetic valve is convenient to wind and has good electromagnetic performance, but it does not have a damping function. The flameout electromagnetic valve works in a high-vibration environment of the engine for a long time. Since the above-mentioned electromagnetic valve does not have a damping function, the vibration will cause the performance of the electromagnetic valve to decline or fail. Specifically, the valve core, the coil or the sealing element will be worn, loose or broken due to long-term vibration fatigue, and the welding points or the wires will be detached due to vibration and the coil insulation layer will be worn to cause short circuit, which seriously affects the service life of the electromagnetic valve. At the same time, the heat dissipation efficiency of the shell is poor, the internal coil is easy to overheat, the electromagnetic force of the component is reduced, and the valve core action fails. SUMMARY

[0005] The utility model aims at the above-mentioned problems existing in the prior art, and provides a flameout electromagnetic valve with a damping function, which can effectively reduce the vibration frequency and amplitude of the valve body, prolong the service life, reduce the failure rate, has better heat dissipation effect, avoids the influence of high internal temperature on the electromagnetic force, and ensures the sensitive action of the valve core.

[0006] The utility model discloses a purpose can be realized through the following technical scheme: a flameout electromagnetic valve, including the valve shell, the surface welding of valve shell has the heat dissipation fin, the rear side welding of valve shell has the installation plugboard, the rear side of installation plugboard is equipped with the sleeve shell of sleeve, the four corners of sleeve shell all are equipped with the installation bolt of active connection, the rear side of sleeve shell is provided with the buffer seat, the buffer seat includes fixed shell, the inner chamber sliding connection of fixed shell has the connecting slide plate, the rear side fixed connection of connecting slide plate has the damping spring, the front side of fixed shell is glued with the damping pad, the top of valve shell inner chamber is installed and passes the moving iron core, the bottom of valve shell inner chamber is installed with static iron core.

[0007] The flameout electromagnetic valve mainly sets up valve shell, heat dissipation fin, thread groove, installation plugboard, sleeve shell, buffer seat, installation bolt and damping pad, and can have damping function through valve shell, heat dissipation fin, thread groove, installation plugboard, sleeve shell, buffer seat, installation bolt and damping pad, can effectively reduce the vibration frequency and amplitude of valve body, prolong service life, reduce failure rate, and has good heat dissipation effect, avoids the influence of internal temperature on electromagnetic force, and guarantees the action sensitivity of valve core.

[0008] In the above-mentioned flameout electromagnetic valve, the lubricating groove includes a storage groove, a connecting rod is installed through the top of the moving iron core, a locking nut is threadedly sleeved on the surface of the connecting rod, a limiting sleeve is sleeved on the bottom of the surface of the connecting rod, and a supporting spring is sleeved on the outer surface of the limiting sleeve. In actual application, the structure is more compact by setting the supporting spring, and the problem of looseness is avoided. The moving iron core overcomes the elastic force of the supporting spring to generate a compensation gap between the inner end of the limiting sleeve and the moving iron core, so that the stroke error of the moving iron core is automatically compensated.

[0009] In the above-mentioned flameout electromagnetic valve, the top and bottom of the rear side of the sleeve shell are welded with supporting slides, and the rear side of the supporting slide is fixedly connected with the connecting slide plate through the fixed shell. In actual application, the supporting slide can be compressed by pushing the damping spring through the connecting slide plate.

[0010] In the above-mentioned flameout electromagnetic valve, the front side of the damping pad is fixedly connected with the sleeve shell, and through holes are formed in the four corners of the sleeve shell. In actual application, the installation bolt can pass through the sleeve shell through the through holes.

[0011] In the above-mentioned flameout electromagnetic valve, thread grooves are formed in the four corners of the installation plugboard, and a wiring board is fixedly installed through the bottom of the valve shell. In actual application, the installation plugboard and the installation bolt can be threadedly connected by setting the thread grooves, and the electromagnetic valve and the external cable can be connected by setting the wiring board.

[0012] In the above-mentioned flameout electromagnetic valve, the top of the valve shell is glued with a dust cover, the left and right sides of the shock-absorbing seat are welded with positioning bottom plates, and the surface of the positioning bottom plate is provided with positioning openings.

[0013] In the above-mentioned flameout electromagnetic valve, the surface of the static iron core is sleeved with a sealing ring, and the outer surface of the dynamic iron core is sleeved with an inner cylinder between the valve shell.

[0014] Compared with the prior art, the flameout electromagnetic valve has the advantages that: in the working process, the valve body vibration frequency and amplitude are effectively reduced, the service life is prolonged, the failure rate is reduced, the heat dissipation effect is good, the internal temperature is prevented from being too high to affect the electromagnetic force, and the valve core action is sensitive. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the axial side view of the valve shell of the flameout electromagnetic valve.

[0016] Figure 2 is the rear view of the axial side view of the valve shell of the flameout electromagnetic valve.

[0017] Figure 3 is the main view of the axial side view of the sleeve shell of the flameout electromagnetic valve.

[0018] Figure 4 is the sectional view of the axial side view of the fixed shell of the flameout electromagnetic valve.

[0019] Figure 5 is the main view of the sectional view of the valve shell of the flameout electromagnetic valve.

[0020] In the figure: 1, valve shell; 2, heat dissipation fin; 3, locking nut; 4, connecting rod; 5, dust cover; 6, wiring board; 7, positioning bottom plate; 8, threaded groove; 9, mounting plugboard; 10, sleeve shell; 11, shock-absorbing seat; 12, mounting bolt; 13, positioning opening; 14, supporting slide plate; 15, damping pad; 16, through hole; 17, damping spring; 18, connecting slide plate; 19, fixed shell; 20, dynamic iron core; 21, sealing ring; 22, supporting spring; 23, static iron core; 24, inner cylinder; 25, limiting sliding sleeve. DETAILED DESCRIPTION

[0021] The following is a specific embodiment of the present utility model and further describes the technical scheme of the present utility model in combination with the drawings, but the present utility model is not limited to these embodiments.

[0022] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the present flameout electromagnetic valve includes a valve shell 1, the surface of which is welded with heat dissipation fins 2, the rear side of the valve shell 1 is welded with a mounting plug plate 9, the rear side of the mounting plug plate 9 is sleeved with a sleeve shell 10, the four corners of the sleeve shell 10 are all throughly connected with mounting bolts 12, the rear side of the sleeve shell 10 is provided with a shock absorbing seat 11, the shock absorbing seat 11 includes a fixed shell 19, the inner cavity of the fixed shell 19 is slidably connected with a connecting sliding plate 18, the rear side of the connecting sliding plate 18 is fixedly connected with a damping spring 17, the front side of the fixed shell 19 is glued with a damping pad 15, the top of the inner cavity of the valve shell 1 is throughly mounted with a moving iron core 20, and the bottom of the inner cavity of the valve shell 1 is mounted with a static iron core 23.

[0023] Further, the top of the moving iron core 20 is throughly mounted with a connecting rod 4, the surface of the connecting rod 4 is threadedly sleeved with a locking nut 3, and the bottom of the surface of the connecting rod 4 is sleeved with a limiting sliding sleeve 25, and the outer surface of the limiting sliding sleeve 25 is sleeved with a supporting spring 22.

[0024] The top and bottom of the rear side of the sleeve shell 10 are both welded with supporting sliding plates 14, and the rear side of the supporting sliding plates 14 is throughly fixed with the fixed shell 19 and fixedly connected with the connecting sliding plate 18. The front side of the damping pad 15 is fixedly connected with the sleeve shell 10, and the four corners of the sleeve shell 10 are all provided with through holes 16. The four corners of the mounting plug plate 9 are all provided with threaded grooves 8, and the bottom of the valve shell 1 is throughly fixedly mounted with a wiring board 6.

[0025] The top of the valve shell 1 is glued with a dust cover 5, and the left and right sides of the shock absorbing seat 11 are both welded with positioning bottom plates 7, and the surface of the positioning bottom plates 7 is provided with positioning openings 13. The surface of the static iron core 23 is sleeved with a sealing ring 21, and the outer surface of the moving iron core 20 is sleeved with an inner cylinder 24 between the valve shell 1.

[0026] In actual manufacture, after the mounting plug plate 9 is inserted into the sleeve shell 10, the mounting bolts 12 of the four corners are respectively screwed and inserted into the threaded grooves 8 for positioning to complete the installation of the valve shell 1. When the engine starts, the surrounding installation accessories will vibrate strongly. At this time, the kinetic energy generated by the vibration will make the supporting sliding plates 14 push the damping springs 17 to compress them. The damping springs 17 will reduce the kinetic energy generated by the vibration through their own supporting elastic force in the compression process. In this way, the kinetic energy acting on the valve shell 1 can be offset. At the same time, the damping pad 15 between the sleeve shell 10 and the fixed shell 19 can reduce the vibration frequency through its own high damping and viscoelastic characteristics, and the damping effect is better, which effectively prolongs the service life and reduces the failure rate. The heat dissipation fins 2 are arranged on the outer surface of the valve shell 1, which can increase the contact area with air. In this way, the heat in the valve shell 1 is transferred to the surface of the heat dissipation fins 2 and dissipated into the air, improving the heat dissipation efficiency and avoiding the increase of internal temperature, and ensuring the sensitivity of the valve core action.

[0027] What is not described in detail in the specification is the prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A flame arrestor solenoid valve comprising a valve housing (1), characterized in that: The surface of the valve shell (1) is welded with the heat dissipation fin (2), the rear side of the valve shell (1) is welded with the installation plug-in board (9), the rear side of the installation plug-in board (9) is sleeved with the sleeve shell (10), the four corners of the sleeve shell (10) are all penetrated with the installation bolt (12) which is movably connected, the rear side of the sleeve shell (10) is provided with the shock absorbing seat (11), the shock absorbing seat (11) comprises the fixed shell (19), the inner cavity of the fixed shell (19) is slidably connected with the connecting sliding plate (18), the rear side of the connecting sliding plate (18) is fixedly connected with the damping spring (17), the front side of the fixed shell (19) is glued with the damping pad (15), the top of the inner cavity of the valve shell (1) is penetrated with the moving iron core (20), and the bottom of the inner cavity of the valve shell (1) is provided with the static iron core (23).

2. A flame arrestor solenoid valve according to claim 1, characterized in that: The top of the moving iron core (20) is penetrated with the connecting rod (4), the surface of the connecting rod (4) is threaded with the locking nut (3), the surface of the connecting rod (4) is sleeved with the limiting sliding sleeve (25), and the outer surface of the limiting sliding sleeve (25) is sleeved with the supporting spring (22).

3. A flame arrestor solenoid valve according to claim 1, wherein: The top and the bottom of the rear side of the sleeve shell (10) are all welded with the supporting sliding plate (14), and the rear side of the supporting sliding plate (14) penetrates the fixed shell (19) and is fixedly connected with the connecting sliding plate (18).

4. A flame arrestor solenoid valve according to claim 1, wherein: The front side of the damping pad (15) is fixedly connected with the sleeve shell (10), and the four corners of the sleeve shell (10) are all provided with the penetrating hole (16).

5. A flame arrestor solenoid valve according to claim 1, wherein: The four corners of the installation plug-in board (9) are all provided with the threaded groove (8), and the bottom of the valve shell (1) is penetrated with the fixed installation of the wiring board (6).

6. A flame arrestor solenoid valve according to claim 1, wherein: The top of the valve shell (1) is glued with the dust cover (5), and the left and right sides of the shock absorbing seat (11) are both welded with the positioning bottom plate (7), and the surface of the positioning bottom plate (7) is provided with the positioning opening (13).

7. A flame arrestor solenoid valve according to claim 1, wherein: The surface of the static iron core (23) is sleeved with the sealing ring (21), and the outer surface of the moving iron core (20) is sleeved with the inner cylinder (24) between the valve shell (1).

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