Electromagnetic valve structure capable of reducing exhaust noise

Abstract

The utility model discloses an electromagnetic valve structure capable of reducing exhaust noise, which comprises an outer frame, a framework is arranged in the outer frame, an air nozzle limited by the outer frame is clamped at the bottom of the framework, a gasket is arranged on the upper side of the air nozzle, a movable valve core is arranged in the framework, the outer frame and the framework are fixed through a cover plate, and a lower cover is arranged on the upper side of the cover plate. An upper cover is arranged on the upper side of the lower cover, noise reduction cotton is arranged between the lower cover and the cover piece, and the noise reduction cotton is arranged on the outer side of the valve element in a sleeving mode. The utility model belongs to the technical field of electromagnetic valves, and particularly relates to a silencing cotton arranged on the periphery of a valve core and used for blocking each air port, so that air is annularly exhausted through the silencing cotton, the air running path is increased, and the sound absorption efficiency and effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electromagnetic valve, specifically point to a kind of electromagnetic valve structure for reducing exhaust noise. BACKGROUND

[0002] Electromagnetic valve is used for switching gas circuit, and is commonly used for controlling pneumatic components such as air cylinder, and the electromagnetic valve is provided with compressed air inlet and exhaust port, and the exhaust port is used to generate pressure difference with the air inlet to drive the movement of the pneumatic component.

[0003] The miniature electromagnetic valve generally has air inlet and exhaust functions, and when air charging, gas is filled into the air outlet from the air inlet, and the air outlet is connected with the air bag, so as to fill gas into the air bag; when air discharging, the gas is discharged from the air outlet to the air inlet to complete the air discharging. When air discharging, due to the impact of air flow, a large noise is generated, which causes poor user experience. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is:

[0005] The existing electromagnetic valve has large noise during air discharging, and the user experience is poor.

[0006] To solve the above technical problems, the technical scheme provided by the utility model is: an electromagnetic valve structure for reducing exhaust noise, comprising an outer frame, a skeleton is installed in the outer frame, a tuyere limited by the outer frame is clamped at the bottom of the skeleton, a gasket is arranged on the upper side of the tuyere, a movable valve core is arranged in the skeleton, the outer frame and the skeleton are fixed by a cover sheet, a lower cover is arranged on the upper side of the cover sheet, an upper cover is arranged on the upper side of the lower cover, sound-absorbing cotton is arranged between the lower cover and the cover sheet, and the sound-absorbing cotton is sleeved on the outer side of the valve core.

[0007] Further, the lower side of the valve core is arranged in a stepped cylindrical shape, a spring is sleeved on the bottom of the valve core, the spring is arranged between the step of the valve core and the gasket, the upper side of the valve core is arranged in a T-shaped cross section and gradually expands in diameter downward, and a silica gel cap is sleeved on the top of the T-shaped valve core.

[0008] Further, the upper side of the upper cover is a communicating pipe, and the two sides are air inlets, and a plurality of air outlets extend in the vertical direction of the communicating pipe.

[0009] Further, the lower side of the air inlet corresponding to the position of the air outlet is provided with an upper cover sealing port.

[0010] Further, the lower cover is provided with a lower cover sealing port corresponding to the upper cover sealing port.

[0011] Further, a plurality of air release ports are arranged on the outer side of the lower cover, the sound-absorbing cotton blocks the air release ports, a gap is arranged between the lower cover and the skeleton, and the air release ports block the gap.

[0012] Further, the distance of the gap is greater than 0.4 and less than 0.8 mm.

[0013] Further, the sound-absorbing cotton is provided with a reserved hole for conveniently installing the valve core.

[0014] The utility model discloses the following beneficial effects are obtained by adopting the above structure:

[0015] By setting the sound-absorbing cotton around the valve core and making the sound-absorbing cotton block each gas port, the gas passes through the sound-absorbing cotton annularly, the path of the gas running is increased, and the sound absorption efficiency and effect are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a kind of overall structure schematic diagram of electromagnetic valve structure for reducing exhaust noise proposed by the utility model;

[0017] Figure 2 The utility model discloses a kind of cross-sectional view of electromagnetic valve structure for reducing exhaust noise proposed by the utility model;

[0018] Figure 3 The utility model discloses a kind of cross-sectional view of another angle of electromagnetic valve structure for reducing exhaust noise proposed by the utility model;

[0019] Figure 4 The utility model discloses a kind of sound-absorbing cotton structure schematic diagram of electromagnetic valve structure for reducing exhaust noise proposed by the utility model;

[0020] Figure 5 A kind of distribution diagram of the utility model discloses a kind of exhaust port of electromagnetic valve structure for reducing exhaust noise proposed by the utility model.

[0021] Figure 6 The utility model discloses a kind of air inlet path diagram of electromagnetic valve structure for reducing exhaust noise proposed by the utility model;

[0022] Figure 7 The utility model discloses a kind of air outlet, exhaust path diagram of electromagnetic valve structure for reducing exhaust noise proposed by the utility model.

[0023] Wherein, outer frame 1, framework 2, tuyere 3, gasket 4, valve core 5, cover sheet 6, lower cover 7, upper cover 8, sound-absorbing cotton 9, spring 10, silica gel cap 11, air inlet 12, air outlet 13, upper cover sealing mouth 14, lower cover sealing mouth 15, exhaust port 16, gap 17, reserved hole 18.

[0024] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and with the embodiment of the utility model, for explaining the utility model, and do not constitute the limitation to the utility model. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1-5 As shown, the present invention proposes a solenoid valve structure for reducing exhaust noise, including an outer frame 1, a skeleton 2 installed inside the outer frame 1, a nozzle 3 fixed at the bottom of the skeleton 2 by the outer frame 1, a gasket 4 on the upper side of the nozzle 3, a movable valve core 5 inside the skeleton 2, the outer frame 1 and the skeleton 2 being fixed by a cover plate 6, a lower cover 7 on the upper side of the cover plate 6, an upper cover 8 on the upper side of the lower cover 7, a connecting pipe at the top of the upper cover 8, air inlets 12 on both sides, and multiple sets of air outlets 13 extending perpendicularly to the connecting pipe, enabling multiple air outlets, a sound-absorbing cotton 9 between the lower cover 7 and the cover plate 6, the sound-absorbing cotton 9 being sleeved on the outside of the valve core 5, and a reserved hole 18 on the sound-absorbing cotton 9 for easy installation of the valve core 5.

[0027] like Figure 3 As shown, the lower side of the valve core 5 is arranged in a stepped cylindrical shape. A spring 10 is sleeved at the bottom of the valve core 5. The spring 10 is located between the steps of the valve core 5 and the gasket 4. The upper side of the valve core 5 has a T-shaped cross section that gradually increases in diameter downwards. A silicone cap 11 is sleeved on the top of the T-shape of the valve core 5.

[0028] like Figures 6-7 As shown, an upper cover sealing port 14 is provided on the lower side of the air inlet 12 corresponding to the air outlet 13. After the silicone cap 11 blocks the upper cover sealing port 14, air can be released. The lower cover 7 is provided with a lower cover sealing port 15 corresponding to the upper cover sealing port 14. After the silicone cap 11 blocks the lower cover sealing port 15, air can be introduced.

[0029] In order to exhaust gas and to make the gas pass through the sound-absorbing cotton 9 to achieve noise reduction, the outer side of the lower cover 7 is provided with multiple sets of vents 16. The sound-absorbing cotton 9 blocks the vents 16. A gap 17 is provided between the lower cover 7 and the frame 2. The vents 16 seal the gap 17. The distance of the gap 17 is greater than 0.4 mm and less than 0.8 mm. Preferably, it is 0.65 mm.

[0030] Working principle:

[0031] like Figure 4 As shown, when the solenoid valve is energized, the valve core 5 moves downward to contact the gasket 4, allowing air to enter through the air inlet 12, pass through the gap between the silicone cap 11 and the sealing port 14 of the upper cover, and then enter the container through the air outlet 13.

[0032] like Figure 5As shown, exhaust: electromagnetic valve power off, spool 5 upward movement contact upper cover 8 upper cover seal 14, gas in the container, through the gas outlet 13, and then through the lower cover 7 and spool 5 gap 17, through the sound absorbing cotton 9 exhaust hole exhaust.

[0033] Silencing cotton: during the exhaust process, the gas reaches the sound absorbing cotton 9, and then passes through the sound absorbing cotton 9 ring-shaped exhaust to reduce the exhaust sound of the valve body.

[0034] It should be noted that in this paper, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0035] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0036] The above describes the present application and its embodiments, which is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical scheme should belong to the protection scope of the present application.

Claims

1. A solenoid valve structure for reducing exhaust noise, characterized by: Including the outer frame (1), the skeleton (2) is installed in the outer frame (1), the wind nozzle (3) is clamped in the bottom of the skeleton (2) and is limited by the outer frame (1), the gasket (4) is arranged on the upper side of the wind nozzle (3), the movable valve core (5) is arranged in the skeleton (2), the outer frame (1) and the skeleton (2) are fixed through the cover sheet (6), the lower cover (7) is arranged on the upper side of the cover sheet (6), the upper cover (8) is arranged on the upper side of the lower cover (7), the sound-absorbing cotton (9) is arranged between the lower cover (7) and the cover sheet (6), and the sound-absorbing cotton (9) is arranged outside the valve core (5).

2. The electromagnetic valve structure for reducing exhaust noise according to claim 1, characterized by: The lower side of the valve core (5) is arranged in a stepped cylindrical shape, the spring (10) is arranged at the bottom of the valve core (5), the spring (10) is arranged between the stepped portion of the valve core (5) and the gasket (4), the upper side of the valve core (5) is arranged in a T-shaped cross section and gradually expands in diameter downward, and the T-shaped top of the valve core (5) is sleeved with the silica gel cap (11).

3. The electromagnetic valve structure of claim 1, wherein: The upper cover (8) is arranged in a communicating pipe in the transverse direction of the top, the two sides are air inlets (12), a plurality of air outlets (13) are arranged in the vertical direction of the communicating pipe, and the multiple-outlet air outlet can be realized.

4. The electromagnetic valve structure of claim 3, wherein: The lower side of the air inlet (12) corresponding to the position of the air outlet (13) is provided with an upper cover sealing port (14), and the silica gel cap (11) can be blocked after the upper cover sealing port (14) is blocked. Air can be released.

5. The solenoid valve structure of claim 4, wherein: The lower cover (7) is provided with a lower cover sealing port (15) corresponding to the position of the upper cover sealing port (14), and the silica gel cap (11) can be blocked after the lower cover sealing port (15) is blocked. Air can be introduced.

6. The electromagnetic valve structure of claim 1, wherein: In order to exhaust and make the gas pass through the sound-absorbing cotton (9) to realize sound absorption, a plurality of air release ports (16) are arranged on the outer side of the lower cover (7), the sound-absorbing cotton (9) blocks the air release port (16), the gap (17) is arranged between the lower cover (7) and the skeleton (2), and the air release port (16) blocks the gap (17).

7. The electromagnetic valve structure of claim 6, wherein: The distance of the gap (17) is greater than 0.4 and less than 0.8 mm.

8. The electromagnetic valve structure of claim 7, wherein: The sound-absorbing cotton (9) is provided with a reserved hole (18) for conveniently installing the valve core (5).

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