CN209910225U

CN209910225U - Prevent rocking formula silence choke valve

Info

Publication number: CN209910225U
Application number: CN201822035427.1U
Authority: CN
Inventors: 刘护彦; 赵敏; 秦朝学; 高骏
Original assignee: Xinchang Hundred Million Machinery Co Ltds Of China
Current assignee: Zhejiang Huayi Machinery Co., Ltd.
Priority date: 2018-12-05
Filing date: 2018-12-05
Publication date: 2020-01-07
Anticipated expiration: 2028-12-05

Abstract

The utility model relates to a refrigeration and idle call choke valve field, concretely relates to prevent rocking formula silence choke valve. After the air conditioner is shut down, the refrigerant flows to the low-pressure component from the high pressure. When the refrigerant flows through the throttle valve, the valve core is suspended in the valve seat in the non-throttling state. The valve core and the valve seat belong to a linear contact state, and the valve core can axially float and radially rotate in the pressure balancing process. The valve core and the valve seat generate impact, and noise is generated. The utility model discloses a prevent rocking formula silence choke valve, including body, retaining ring, case, disk seat and locate the passageway above that, be equipped with interior taper in the retaining ring, be equipped with outer taper on the case, inside and outside taper fit feeds through or blocks the passageway by the motion of case, plays to switch on or throttle the effect. When the valve core is in a throttling state, the valve core is tightly attached to the valve seat, and the valve core cannot shake to generate noise; when the valve core is in a non-throttling state, the valve core retainer ring is in taper fit, so that the axial movement of the valve core is prevented; the radial rotation of the valve core is reduced due to the increase of the friction force; the mute effect is realized.

Description

Prevent rocking formula silence choke valve

Technical Field

The utility model relates to a refrigeration and idle call choke valve technical field, more specifically say and relate to a prevent rocking formula silence choke valve.

Background

After the air conditioner is shut down, the refrigerant flows from the high-pressure component to the low-pressure component in the process of gradually balancing from high pressure to low pressure due to sudden pressure change.

When the refrigerant flows through the throttle valve, the throttle valve is in a non-throttling state, and the valve core is suspended in the valve seat. And the valve core and the valve seat belong to a linear contact state, and the valve core can generate axial float and radial rotation in the pressure balancing process. At this time, the valve element collides with the valve seat, thereby generating noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a structural design weak point to current choke valve, provide a choke valve that can not rock and can not produce the noise.

An anti-shaking silent throttle valve comprises a pipe body, a retaining ring, a valve core, a valve seat and a channel arranged on the valve core, wherein an inner taper is arranged in the retaining ring, an outer taper is arranged at one end of the valve core, the inner taper is matched with the outer taper, and the channel is communicated or blocked by the movement of the valve core, so that the conduction or throttling function is realized; the pipe body, the check ring, the valve core and the valve seat are coaxial.

As a further improvement and supplement to the above solution, the present invention further comprises the following additional technical features:

the angles of the inner taper and the outer taper are equal, the outer taper on the valve core is matched with the inner taper on the retainer ring, and a certain matching length is provided. In the matching length, the outer conical surface of the valve core is tightly attached to the inner conical surface of the retainer ring, and the contact area between the valve core and the retainer ring is increased, so that the friction force between the valve core and the retainer ring is correspondingly increased. Because the valve core and the retainer ring are in taper fit, the axial movement of the valve core is prevented; in addition, because the friction force is increased, the radial rotation of the valve core is reduced; therefore, no noise is generated.

The other end of the valve core is provided with a spherical surface, the valve seat is provided with a third conical surface, and the spherical surface is in sealing fit with the third conical surface.

The check ring is provided with a first step, the valve seat is provided with a second step and a third step, the check ring is riveted on the second step and the third step of the valve seat, and the check ring is fixed in the valve seat.

One end of the valve seat in riveting mode is in fillet transition, and the check ring is fixed in the valve seat.

The two ends of the pipe body are also provided with a first filter screen and a second filter screen which are used for filtering the refrigerant. The mesh number of the filter screen is 30-120 meshes, and the material is stainless steel.

The retainer ring is made of stainless steel or brass, so that the mass production is facilitated.

Use the utility model discloses following beneficial effect can be reached:

1. when the valve core is in a throttling state, the valve core is tightly attached to the valve seat, so that the valve core cannot shake and generate noise;

2. when the valve core is in a non-throttling state, the valve core is pushed into the retaining ring by the pressure of the refrigerant, and the external taper on the valve core is matched with the internal taper on the retaining ring and has a certain matching length. In the matching length, the outer conical surface of the valve core is tightly attached to the inner conical surface of the retainer ring, and the contact area between the valve core and the retainer ring is increased, so that the friction force between the valve core and the retainer ring is correspondingly increased. Because the valve core and the retainer ring are in taper fit, the axial movement of the valve core is prevented; in addition, because the friction force is increased, the radial rotation of the valve core is reduced; thus, a mute effect is achieved.

Drawings

Fig. 1 is a schematic structural view of the throttle state of the present invention.

Fig. 2 is a schematic structural diagram of the conduction direction (non-throttling state) in the present invention.

Fig. 3 is an exploded view of the retainer ring 4, the valve element 5 and the valve seat 6 of the present invention.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-3, the utility model relates to an anti-sway silence throttle valve.

The anti-shaking silent throttle valve comprises a pipe body 1, a retainer ring 4, a valve core 5, a valve seat 6 and a channel 603 arranged on the valve seat, wherein an inner taper 402 is arranged in the retainer ring 4, an outer taper 501 is arranged at one end of the valve core 5, the inner taper 402 is matched with the outer taper 501, and the channel 603 is communicated or blocked by the movement of the valve core 5, so that the conduction or throttling function is realized; the pipe body 1, the retainer ring 4, the valve core 5 and the valve seat 6 are coaxial.

Further, the angles of the inner taper 402 and the outer taper 501 are equal.

Further, a spherical surface 502 is arranged at the other end of the valve core 5, a third conical surface 604 is arranged on the valve seat 6, and the spherical surface 502 is in sealing fit with the third conical surface 604.

Further, a first step 401 is arranged on the retainer ring 4, a second step 601 and a third step 602 are arranged on the valve seat 6, and the retainer ring 4 is riveted on the second step 601 and the third step 602 of the valve seat 6.

Furthermore, the riveted end of the valve seat 6 is in fillet transition, and the retainer ring 4 is fixed in the valve seat 6.

Furthermore, a first filter screen 2 and a second filter screen 3 are arranged at two ends of the pipe body 1; the mesh number of the filter screen is 50-120 meshes, and the material is stainless steel.

Furthermore, the material of the retainer ring 4 is stainless steel or brass.

When the throttle valve is in use, the spherical surface 502 at one end of the valve core 5 is in sealing fit with the third conical surface 604 on the valve seat 6 when the throttle valve is in a throttling state. Therefore, the valve core does not shake and generate noise.

When the valve core is in a non-throttling state (in a conducting direction), the outer taper 501 on the valve core 5 is pushed into the inner taper 402 of the retainer ring 4 by the pressure of a refrigerant, the inner taper 402 is tightly attached to the outer taper 501, the angles of the inner taper 402 and the outer taper 501 are equal, a certain matching length exists between the two tapers, the contact area of the two tapers is increased, and the friction force is correspondingly increased. Because the valve core 5 and the retainer ring 4 are in taper fit, the axial movement of the valve core 5 is prevented; in addition, the radial rotation of the valve core 5 is reduced due to the increase of the friction force.

The above is the preferred embodiment of the present invention, and the protection scope of the present invention is not limited, and the deformation and improvement made by the design idea of the present invention for those skilled in the art should be considered as the protection scope of the present invention.

Claims

1. The utility model provides an anti-rock formula silence choke valve, includes body (1), retaining ring (4), case (5), disk seat (6) and locate passageway (603) on disk seat (6), its characterized in that: an inner taper (402) is arranged in the retainer ring (4), an outer taper (501) is arranged at one end of the valve core (5), the inner taper (402) is matched with the outer taper (501), and the valve core (5) moves to communicate or block the channel (603), so that the conduction or throttling function is realized; the pipe body (1), the retainer ring (4), the valve core (5) and the valve seat (6) are coaxial.

2. The anti-sloshing silent throttle valve of claim 1, wherein: the angles of the inner taper (402) and the outer taper (501) are equal.

3. The anti-sloshing silent throttle valve of claim 1, wherein: the other end of the valve core (5) is provided with a spherical surface (502), the valve seat (6) is provided with a third conical surface (604), and the spherical surface (502) is in sealing fit with the third conical surface (604).

4. The anti-sloshing silent throttle valve of claim 1, wherein: the check ring (4) is provided with a first step (401), the valve seat (6) is provided with a second step (601) and a third step (602), and the check ring (4) is riveted on the second step (601) and the third step (602) of the valve seat (6).

5. The anti-sloshing silent throttle valve according to claim 3, wherein: one end of the valve seat (6) which is riveted is in fillet transition, and the check ring (4) is fixed in the valve seat (6).

6. The anti-sloshing silent throttle valve of claim 1, wherein: a first filter screen (2) and a second filter screen (3) are arranged at two ends of the pipe body (1); the mesh number of the filter screen is 50-120 meshes, and the material is stainless steel.

7. The anti-sloshing silent throttle valve of claim 1, wherein: the retainer ring (4) is made of stainless steel or brass.