CN214197494U - Single-air-bag air valve - Google Patents

Abstract

The utility model relates to a single-air bag air valve, which comprises a valve body, a coil, a yoke, a movable iron core and a static iron core; the valve body is provided with a containing cavity, an air inlet, an inflation inlet and a plurality of clamping parts, and a first channel and a second channel which are communicated with the air inlet and the inflation inlet are respectively arranged in the containing cavity; the coil is wound on the periphery of the cavity, and two wire heads of the coil are respectively connected with a wiring terminal; the static iron core tightly plugs the cavity opening of the containing cavity, and a through hole is formed in the static iron core in the axis direction; the movable iron core slides in the accommodating cavity and plugs the first channel and the through hole respectively when the movable iron core is positioned at the two polar positions; a spring which abuts against the movable iron core is arranged in the through hole; one end of the yoke iron is clamped with the valve body, the other end of the yoke iron is clamped with the static iron core, the yoke iron covers the coil, and two ends of the yoke iron are parallel to two ports of the coil respectively. The utility model is electrically connected with the control circuit board through the wiring terminal without wiring and is connected with the control circuit board through the clamping part, thereby being convenient and rapid to install and replace; additionally, the utility model discloses the integrated level is high, and is small, is convenient for arrange.

Description

Single-air-bag air valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a single air bag pneumatic valve.

Background

There are many air bags for massage in the electric massage chair, and these air bags are controlled by electric air valves, because these air valves are frequently started and stopped, and their service life is short, so that they need to be replaced frequently. Because of the limitation of electric control, disconnection, wiring and welding are generally needed, and the replacement is troublesome and has low efficiency.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a single air bag air valve which is easy to replace.

In order to achieve the purpose, the utility model discloses a single-air-bag air valve, which comprises a valve body, a coil, a yoke, a movable iron core and a static iron core; the valve body is provided with a containing cavity, an air inlet connected with the air inlet pipe, an inflation inlet connected with the air bag and a plurality of clamping parts used for being connected with the control circuit board, and a first channel and a second channel communicated with the air inlet and the inflation inlet are respectively arranged in the containing cavity; the coil is wound on the periphery of the accommodating cavity, two wire ends of the coil are respectively connected with a wiring terminal, and the wiring terminals are fixed on the valve body and have the same direction as the clamping part; the static iron core is tightly plugged in the cavity opening of the containing cavity, and a through hole is formed in the static iron core in the axis direction; the movable iron core is arranged in the containing cavity in a sliding mode, and the first channel and the through hole can be respectively plugged when the movable iron core slides to two limit positions; a spring is arranged in the through hole and abuts against the movable iron core; one end of the yoke is connected with the valve body in a clamped mode, the other end of the yoke is connected with the static iron core in a clamped mode, and the yoke covers the coil and two ends of the yoke are parallel to two end ports of the coil respectively.

Preferably, the ends of the one or more clamping parts are provided with an inverted buckle.

Preferably, the connection terminal is a fisheye terminal.

Preferably, a plane is arranged on the side wall of the movable iron core, a plurality of protruding strips matched with the plane are arranged in the accommodating cavity, a gap is reserved between every two adjacent protruding strips, and the plane and the inner wall of the accommodating cavity form an air passage convenient for air circulation.

Preferably, the air passage faces the second passage.

Preferably, two ends of the movable iron core are respectively provided with a sealing plug for plugging the first channel and the through hole.

Preferably, a sealing ring is arranged on the periphery of the static iron core.

Preferably, the stationary iron core is provided with a limiting ring, and a cavity opening of the cavity is provided with a limiting groove matched with the limiting ring.

Preferably, the valve body is provided with a slot matched with the yoke.

The utility model discloses following beneficial effect has:

1. the utility model is electrically connected with the control circuit board through the wiring terminal without wiring and is connected with the control circuit board through the clamping part, thereby being convenient and rapid to install and replace; additionally, the utility model discloses the integrated level is high, and is small, is convenient for arrange.

2. The binding post is the fisheye terminal, and its connection reliability is strong, can avoid the welding, connects more swiftly.

3. The arrangement of the limiting ring and the limiting groove can ensure that the static iron core cannot be installed in an improper or offside manner, and the action of the movable iron core can effectively block the first channel or the through hole.

4. Through slot cooperation yoke on the valve body, can be so that the yoke installation targets in place and can not touch coil and binding post, use safelyr.

Drawings

Fig. 1 is a schematic view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is a cross-sectional view of another angle of the present invention.

Fig. 5 is a schematic diagram of the present invention installed on the control circuit board.

Description of the main part symbols:

10: valve body, 11: cavity, 12: air inlet, 13: inflation inlet, 14: clip portion, 141: back-off, 15: first passage, 16: second passage, 17: spacing recess, 18: slot, 19: rib, 20: coil, 21: terminal, 30: yoke, 40: movable iron core, 41: plane, 42: sealing plug, 50: stationary core, 51: through-hole, 52: seal ring, 53: stop collar, 54: spring, 60: and a control circuit board.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in figures 1-5, the utility model discloses a single-air bag air valve, which comprises a valve body 10, a coil 20, a yoke 30, a movable iron core 40 and a static iron core 50.

The valve body 10 is provided with a cavity 11, an air inlet 12 connected with an air inlet pipe, an inflation inlet 13 connected with an air bag, and two clamping parts 14 used for being connected with the control circuit board 60, wherein one clamping part 14 is provided with an inverted buckle 141, so that the valve body 10 can be stably clamped on the control circuit board 60. A first passage 15 and a second passage 16 communicating the inlet 12 and the charging port 13 are provided in the chamber 11, respectively. The coil 20 is wound on the periphery of the accommodating cavity 11, two wire ends of the coil 20 are respectively connected with a wiring terminal 21, and the wiring terminal 21 is fixed on the valve body 10 and has the same direction as the clamping part 14; in the present case, the fisheye terminal is selected for use as the wiring terminal 21, and the fisheye terminal can fully contact with the conductive hole on the control circuit board 60, so that the connection is more reliable, the welding can be avoided, and the connection is convenient and fast.

The static iron core 50 is tightly plugged in the cavity opening of the cavity 11, and in order to avoid air leakage of a gap between the static iron core 50 and the wall of the cavity 11, a sealing ring 52 is sleeved on the static iron core 50. In addition, a limiting ring 53 is further arranged on the static iron core 50, a limiting groove 17 matched with the limiting ring 53 is arranged at the cavity opening of the cavity 11, and the static iron core 50 can be guaranteed to be tightly plugged in place through the limitation of the limiting ring 53. A through hole 51 is provided in the stationary core 50 in the axial direction, and a spring 54 is placed in the through hole 51.

One end of the yoke 30 is clamped with the valve body 10, the other end is clamped with the static iron core 50, the yoke 30 covers the coil 20, and two ends of the yoke 30 are respectively parallel to two ports of the coil 20. The valve body 10 is provided with an insertion slot 18 which is in clamping fit with the yoke 30, and the insertion slot 18 can prevent the yoke 30 from contacting with the coil 20 or the wiring terminal 21 when being installed, so that the coil 20 can play a role of an electromagnet.

The movable iron core 40 is slidably disposed in the cavity 11, a plane 41 is disposed on a side wall of the movable iron core 40, two protruding strips 19 matched with the plane 41 are disposed in the cavity 11, a gap is left between the protruding strips 19, the plane 41 and an inner wall of the cavity 11 form an air passage convenient for air circulation, and the air passage is opposite to the second passage 16. Sealing plugs 42 are respectively arranged at two ends of the movable iron core 40. One end of the spring 54 abuts against the movable iron core 40, and when the coil 20 is not electrified, the movable iron core 40 moves up to the limit position under the action of the elastic force of the spring 54, so that the sealing plug 42 blocks the first passage 15 and does not block the through hole 51; when the coil 20 is energized, under the action of electromagnetic force, the plunger 40 moves down to the limit position against the elastic force of the spring 54, so that the sealing plug 42 blocks the through hole 51 to release the first passage 15.

The utility model discloses when coil 20 did not switch on, rely on spring 54's elasticity will move iron core 40 jack-up and shutoff first passageway 15, inflation inlet 13 and through-hole 51 switch on, and through-hole 51 uses as the gas vent. When the coil 20 is electrified, the generated magnetic field makes the movable iron core 40 overcome the elastic force of the spring 54 to open the first channel 15 and block the through hole 51, the air inlet 12 is communicated with the air charging port 13, and the air charging operation can be executed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (9)

1. A single-airbag air valve, which is characterized in that: the valve comprises a valve body, a coil, a yoke, a movable iron core and a static iron core; the valve body is provided with a containing cavity, an air inlet connected with the air inlet pipe, an inflation inlet connected with the air bag and a plurality of clamping parts used for being connected with the control circuit board, and a first channel and a second channel communicated with the air inlet and the inflation inlet are respectively arranged in the containing cavity; the coil is wound on the periphery of the accommodating cavity, two wire ends of the coil are respectively connected with a wiring terminal, and the wiring terminals are fixed on the valve body and have the same direction as the clamping part; the static iron core is tightly plugged in the cavity opening of the containing cavity, and a through hole is formed in the static iron core in the axis direction; the movable iron core is arranged in the containing cavity in a sliding mode, and the first channel and the through hole can be respectively plugged when the movable iron core slides to two limit positions; a spring is arranged in the through hole and abuts against the movable iron core; one end of the yoke is connected with the valve body in a clamped mode, the other end of the yoke is connected with the static iron core in a clamped mode, and the yoke covers the coil and two ends of the yoke are parallel to two end ports of the coil respectively.

2. The single-airbag gas valve as recited in claim 1 wherein: the tail ends of the one or more clamping parts are provided with reverse buckles.

3. The single-airbag gas valve as recited in claim 1 wherein: the wiring terminal is a fisheye terminal.

4. The single-airbag gas valve as recited in claim 1 wherein: the side wall of the movable iron core is provided with a plane, the accommodating cavity is internally provided with a plurality of convex strips matched with the plane, a gap is reserved between every two adjacent convex strips, and the plane and the inner wall of the accommodating cavity form an air passage convenient for air circulation.

5. The single-airbag gas valve as recited in claim 4 wherein: the air passage is opposite to the second channel.

6. The single-airbag gas valve as recited in claim 1 wherein: and sealing plugs for plugging the first channel and the through hole are respectively arranged at two ends of the movable iron core.

7. The single-airbag gas valve as recited in claim 1 wherein: and a sealing ring is arranged on the periphery of the static iron core.

8. The single-airbag gas valve as recited in claim 1 wherein: the static iron core is provided with a limiting ring, and a cavity opening of the containing cavity is provided with a limiting groove matched with the limiting ring.

9. The single-airbag gas valve as recited in claim 1 wherein: and the valve body is provided with a slot matched with the yoke.

Images