CN210318713U - Mute throttle valve and throttle valve assembly - Google Patents
Mute throttle valve and throttle valve assembly Download PDFInfo
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- CN210318713U CN210318713U CN201920869055.4U CN201920869055U CN210318713U CN 210318713 U CN210318713 U CN 210318713U CN 201920869055 U CN201920869055 U CN 201920869055U CN 210318713 U CN210318713 U CN 210318713U
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Abstract
The utility model relates to an air conditioner is choke valve technical field for the refrigeration, specifically discloses a silence choke valve and choke valve subassembly. The mute throttle valve comprises a valve seat, a valve core and a retainer ring, wherein the valve core comprises a large-diameter section and a small-diameter section, and a connecting section is arranged between the large-diameter section and the small-diameter section; the check ring is provided with a guide hole matched with the small-diameter section, an inner taper hole is formed in one end, facing the valve core, of the check ring, and when the valve core is located at the limit position, far away from one side of the valve hole, in the valve core cavity, line contact is formed between the check ring and the valve core. The silence throttle valve of above-mentioned structure has effectively reduced the striking noise that the case produced at axial float, radial rotation and axis skew, and the quality of case is lighter, and the length of disk seat is shorter, and the cost is lower.
Description
Technical Field
The utility model relates to a choke valve technical field for the air conditioning refrigeration, concretely relates to silence choke valve and choke valve subassembly.
Background
After the air conditioner is shut down, the refrigerant flows from the high-pressure component to the low-pressure component due to the change of pressure. When the refrigerant flows through the throttle valve, the throttle valve is in an un-throttling state at the moment, the valve core is suspended in the valve seat, and the valve core can generate axial movement in the valve seat in the pressure balancing process.
In the prior art, a valve core is limited in a valve core cavity of a valve seat by a port of the valve seat in a necking mode, and the valve core is prevented from being separated from the valve seat. According to the throttle valve with the structure, due to the fact that the end portion of the valve core is in irregular contact with the necking portion of the valve seat, irregular impact can occur when the valve core moves to the irregular contact position in the axial direction, meanwhile, radial rotation can also occur, the valve core can also impact the inner cavity of the valve seat when rotating, and the impact of the two types can generate large noise. In addition, because a certain gap is formed between the outer wall of the valve core and the inner cavity of the valve seat, the valve core and the valve seat are not always coaxial in the shifting process of the valve core, and the inclination of the valve core relative to the axis can also cause noise to be generated between the valve core and the inner cavity of the valve seat due to impact.
Except after the air conditioner is shut down, some variable frequency air conditioners in the prior art simultaneously use two one-way throttle valve assemblies or one two-way throttle valve assembly, wherein when one-way throttle valve is in a throttling state, the other one-way throttle valve is conducted. When the system operates at low frequency, because the pressure of the refrigerant in the system is low, when the pressure of the refrigerant is basically equal to the weight of the valve core, the valve core in the conducted one-way throttle valve can be suspended at any position in the valve seat, and in the pressure change and balance process, the valve core can generate axial movement, rotation and axial line inclination, and the three noises can be generated.
The frequency conversion air conditioner only uses one-way throttle valve assembly, when the air conditioner is in a refrigeration state, the throttle valve assembly is in a conducting state (non-throttling), when the pressure of a refrigerant in the system is lower, and when the pressure of the refrigerant is basically equal to the weight of a valve core, the valve core in the conducting throttle valve assembly can be suspended at any position in a valve seat, and in the pressure change and balance process, the valve core can generate axial movement, rotation and axial line inclination, and the three noises can be generated.
With the technical development of the silent air conditioner, the noise of the air conditioner needs to be further improved and raised. The present application will be directed to improvements in the construction of the throttle valve to further reduce noise.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to solve the great technical defect of choke valve noise in air conditioner field among the prior art.
In order to solve the technical problem, the utility model provides a technical scheme as follows: a mute throttle valve comprising at least:
the valve comprises a valve seat, a valve hole and a valve core cavity which are communicated with each other are arranged in the valve seat, the inner diameter of the valve core cavity is larger than that of the valve hole, a transition conical surface is arranged between the valve core cavity and the valve hole, and at least one liquid flow channel which radially penetrates through the wall of the valve core cavity is arranged on the wall of the valve core cavity, close to the transition conical surface, along the circumferential direction;
the valve core is movably arranged in a valve core cavity of the valve seat, and one end of the valve core, facing the valve hole, is provided with a cambered surface for contacting and sealing with the transition conical surface in a throttling state;
the check ring is fixedly arranged at one end of the valve core cavity far away from the valve hole, the check ring is provided with an inner taper hole close to one side of the valve core cavity and an axial guide hole far away from one side of the valve core cavity, the inner taper hole is communicated with the guide hole, and the aperture of the maximum aperture of the inner taper hole is not smaller than the inner diameter of the valve core cavity;
the valve core comprises a large-diameter section close to one side of the valve hole and a small-diameter section close to one side of the retainer ring, a connecting section is arranged between the large-diameter section and the small-diameter section, the outer diameter of the small-diameter section is matched with the inner diameter of the guide hole, and the gap between the small-diameter section and the guide hole is larger than the gap between the large-diameter section and the valve core cavity; when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the position where the large-diameter section is connected with the connecting section is in line contact with the inner conical surface of the inner conical hole.
In a preferred embodiment, the engagement section is provided with an external taper having a taper angle β greater than the taper angle α of the internal taper.
In a preferred embodiment, the position where the external conical surface is connected with the large-diameter section is provided with a round-corner cambered surface.
According to the preferred embodiment, the connecting section is provided with a step surface, and a position where the maximum diameter position of the step surface is connected with the large-diameter section is provided with a fillet arc surface.
According to a preferred embodiment, a check ring installation cavity is formed in one end, far away from a valve hole, of a valve core cavity, a limiting step is arranged at the bottom of the check ring installation cavity, and a limiting surface matched with the limiting step is arranged at one end, facing the valve core, of the check ring.
Compared with the prior art, the mute throttle valve based on the structure has the following technical effects:
(1) in the axial float process of the valve core, when the valve core moves to the extreme position of the non-throttling state, because the position where the large-diameter section is connected with the connecting section is in line contact with the inner conical surface of the inner conical hole, compared with the prior art, because the large-diameter section is in regular line contact, and the impact surface is positioned on the inner conical surface, the front surface is not directly impacted, the impact force can generate axial and radial component forces, namely the impact force is more dispersed, and the noise generated by the impact is relatively smaller;
(2) in the prior art, the diameter of the outer wall of the valve core is basically consistent, the valve core in the embodiment comprises a large-diameter section and a small-diameter section, and in the process of converting the valve core from a throttling state to a non-throttling state, the small-diameter section of the valve core firstly enters the guide hole of the retaining ring;
(3) because the small-diameter section and the guide hole as well as the large-diameter section and the valve core cavity are mutually restricted in matching relationship, the problem of valve core rotation is also improved in the shifting process of the valve core, so that the noise generated by impact of the valve core rotation and the valve body is reduced;
(4) in the embodiment, the impact between the outer wall of the valve core and the inner wall of the valve core cavity mainly occurs between the large-diameter section and the valve core cavity, compared with the prior art, the area of the valve core in contact with the valve core cavity is obviously reduced, and the impact noise of the valve core is also smaller under the conditions of reduced contact area and reduced contact length;
(5) in the prior art, the diameters of the outer walls of the valve cores are basically consistent, and the valve cores cannot extend out of the valve seats;
another embodiment of a mute throttle valve comprises at least:
the valve comprises a valve seat, a valve hole and a valve core cavity which are communicated with each other are arranged in the valve seat, the inner diameter of the valve core cavity is larger than that of the valve hole, a transition conical surface is arranged between the valve core cavity and the valve hole, and at least one liquid flow channel which radially penetrates through the wall of the valve core cavity is arranged on the wall of the valve core cavity, close to the transition conical surface, along the circumferential direction;
the valve core is movably arranged in a valve core cavity of the valve seat, and one end of the valve core, facing the valve hole, is provided with a cambered surface for contacting and sealing with the transition conical surface in a throttling state;
the check ring is fixedly arranged at one end of the valve core cavity far away from the valve hole, the check ring is provided with an inner taper hole close to one side of the valve core cavity and an axial guide hole far away from one side of the valve core cavity, the inner taper hole is communicated with the guide hole, and the aperture of the maximum aperture of the inner taper hole is not smaller than the inner diameter of the valve core cavity;
the valve core comprises a large-diameter section close to one side of the valve hole and a small-diameter section close to one side of the retainer ring, a connecting section is arranged between the large-diameter section and the small-diameter section, an outer conical surface is arranged on the connecting section, the conical angle β of the outer conical surface is smaller than the conical angle α of the inner conical hole, the outer diameter of the small-diameter section is matched with the inner diameter of the guide hole, the gap between the small-diameter section and the guide hole is larger than the gap between the large-diameter section and the valve core cavity, and when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the position where the inner conical hole is connected with the guide hole is in.
In a preferred embodiment, an arc-shaped transition surface is arranged at the position where the inner taper hole is connected with the guide hole.
Compared with the mute throttle valve with the structure, the mute throttle valve of the embodiment has the difference that the taper angle β of the outer taper surface of the connecting section is smaller than the taper angle α of the inner taper hole, and when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the position of the inner taper hole connected with the guide hole is in line contact with the outer taper surface of the connecting section.
This difference leads to the striking position to keep away from valve opening one side more, and has changed the holding surface of striking (striking holding surface is the interior conical surface of interior conical bore in the aforesaid structure, and striking holding surface is the external cone face of linking section in this embodiment), but, because the striking surface is the conical surface equally, has the effect of dispersion striking power, simultaneously, is regular closed line contact during the striking. The technical effect of muting is equivalent to that of the foregoing embodiment.
Drawings
FIG. 1 is a schematic structural diagram of a mute throttle valve in an un-throttled state according to a first embodiment;
FIG. 2 is a schematic structural diagram of a mute throttle valve in a throttling state according to the first embodiment;
FIG. 3 is a schematic structural diagram illustrating an explosion state of the mute throttle valve according to the first embodiment;
fig. 4 is a schematic view of a connection state of a spool and a check ring in the state shown in fig. 1 of the mute throttle valve according to the first embodiment;
fig. 5 is a schematic structural view of a baffle ring in the silence throttle valve of the second embodiment;
FIG. 6 is a schematic structural view of a one-way throttle valve assembly according to a third embodiment;
fig. 7 is a schematic view of a connection state of a valve element and a check ring in a mute throttle valve according to a fourth embodiment in a throttled state;
FIG. 8 is a schematic structural view of a spool in the mute throttle valve according to the fifth embodiment;
fig. 9 is a schematic view of a connection state of a valve element and a check ring in a mute throttle valve according to a sixth embodiment in a throttled state;
FIG. 10 is a schematic view of the valve cartridge and retainer ring of FIG. 9 in an exploded condition;
fig. 11 is a schematic structural view of a two-way throttle valve assembly of the seventh embodiment.
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. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.
Example one
A throttle valve of the present embodiment, as shown in fig. 1 to 3, includes a valve seat 10, a valve element 20, and a retainer 30. The valve seat 10 is provided with a valve hole 12 and a valve core chamber 11 for installing the valve core 20, which are communicated with each other, and the valve core 20 is axially movable in the valve core chamber 11.
The inner diameter of the valve core cavity 11 is larger than that of the valve hole 12, and a transition conical surface 13 is arranged between the valve core cavity 11 and the valve hole 12.
In this embodiment, two liquid flow channels 14 radially penetrating through the cavity wall of the spool cavity 11 are circumferentially arranged at the position of the cavity wall of the spool cavity 11 close to the transition conical surface 13. Of course, the number of the flow channels 14 may be one, or may be more than two, and preferably two.
In this embodiment, a check ring installation cavity 15 is arranged at one end of the valve core cavity 11, which is far away from the valve hole 12, and a limiting step 16 is arranged at the bottom of the check ring installation cavity 15. Wherein, the retainer ring 30 is installed in the retainer ring installation cavity 15, and one end of the retainer ring 30 facing the valve core 20 is provided with a limit surface 33 matched with the limit step 16. When the valve seat is installed, after the limiting surface 33 is abutted against the limiting step 16, the retainer ring and the valve seat can be fixed through welding; the mode shown in fig. 1-2 can also be adopted, the port of the valve seat is processed by necking, and the retainer ring is riveted in the retainer ring installation cavity 15.
The valve core 20 of this embodiment, as shown in fig. 1-3, includes a large diameter section 21 near one side of the valve hole and a small diameter section 22 far from one side of the valve hole, and an engaging section is provided between the large diameter section and the small diameter section, and in this embodiment, the engaging section is provided with an external tapered surface 23. One end of the valve core 20 facing the valve hole 12 is provided with a cambered surface 25 for contacting and sealing with the transition conical surface 13 in a throttling state, and the cambered surface is preferably a spherical surface. Preferably, an annular avoiding groove 24 is formed in the outer wall of the large-diameter section of the valve core 20 close to one end of the valve hole, so that the cambered surface 25 and the transition conical surface 13 can be completely in contact sealing. In the state that the cambered surface 25 and the transition conical surface 13 can be completely contacted and sealed, namely the throttling state shown in fig. 2, due to the pressure of the refrigerant, the valve core is tightly attached to the valve seat, the valve core cannot shake, and no noise is generated.
In this embodiment, the retainer ring 30 is provided with a guide hole 31 adapted to the small diameter section 22, and an inner tapered hole 32 at an end facing the spool 20.
In this embodiment, the gap between the small-diameter section and the guide hole is larger than the gap between the large-diameter section and the valve core cavity, and the aperture at the maximum aperture of the inner tapered hole is not smaller than the inner diameter of the valve core cavity. The purpose that so set up lies in, and the case removes the in-process, guarantees that the entering guiding hole that the minor diameter section can be smooth, simultaneously, guarantees that the striking position of case and retaining ring is located at least within interior taper hole.
Wherein the taper angle β of the outer tapered surface 23 is less than the taper angle α of the inner tapered bore as shown in fig. 4, the choke valve of this construction, in the extreme position of the choked state, has the small diameter section fully inserted into the guide bore such that the inner tapered bore is connected to the guide bore at a position in line contact with the outer tapered surface of the engagement section.
According to the mute throttle valve with the structure, when the valve core is located at the limit position of one side, far away from the valve hole, of the valve core cavity, the free end of the small-diameter section can extend out of the guide hole of the retainer ring or even the valve seat, so that the length of the valve seat can be reduced under the condition that the stroke of the valve core is fixed, and the use requirement is met, so that the production cost is saved.
In this embodiment, the length of the small diameter portion of the valve element is typically 1/10 to 1/2 of the total length of the valve element, in this embodiment, the length of the small diameter portion of the valve element is selected within the above range based on the angular variation of the taper angle β (the outer taper surface becomes a plane perpendicular to the axis at the limit angle), and the cost, life and performance are all within a more balanced range.
In addition, the valve core comprises a large-diameter section and a small-diameter section, so that the valve core is light in weight, the center of gravity of the valve core is shifted towards one end of the large-diameter section, the shifting of the center of gravity can reduce the swinging of the valve core, and certain contribution is made to the noise reduction of the throttle valve.
The retainer ring in the embodiment is usually made of stainless steel or copper, is made of the conventional material, and is beneficial to cost reduction and mass production.
Example two
As shown in fig. 5, the mute throttle valve of the present embodiment is different from the first embodiment in that an arc-shaped transition surface 34 is provided at a position where the inner tapered hole of the check ring is connected with the guide hole. The purpose of so setting up lies in, when the outer conical surface striking on retaining ring and the case, the arc at arc transition face place is littleer to the damage of outer conical surface, is favorable to promoting the life-span of silence choke valve.
EXAMPLE III
As shown in fig. 6, the one-way throttle valve assembly of the present embodiment includes a valve tube 40, a valve seat installation cavity 41 is disposed in the valve tube 40, a mute throttle valve of the first embodiment is disposed in the valve seat installation cavity 41, and a filter screen 42 is disposed at both ends of the throttle valve in the valve tube of the present embodiment.
Preferably, the screen 42 in this embodiment is made of stainless steel, and has a mesh size of 50 to 150 meshes.
It should be noted that, the present embodiment is a specific application of the mute throttle valve according to the first embodiment, the throttle valve assembly of the present embodiment can be directly applied to an air conditioner, and both ends of the throttle valve assembly are connected to a refrigerant pipeline of the air conditioner. The throttle valve component with the structure also has the mute technical advantage of the mute throttle valve in the first embodiment, so that the air conditioner mute effect using the throttle valve component is better.
Example four
As shown in fig. 7, the most important difference of the silent throttle valve of this embodiment compared to the first embodiment is that the taper angle β of the outer tapered surface 23 is larger than the taper angle α of the inner tapered hole.
In this state, when the valve core moves to the limit position of the non-throttling state, the position where the large-diameter section is connected with the connecting section and the inner conical surface of the inner conical hole form line contact. Under this state, the impact that the position that interior cone face large diameter section and linking section are connected formed disperses to reduce impact and striking noise.
EXAMPLE five
As shown in fig. 8, the structure of the mute throttle valve of the present embodiment is different from that of the fourth embodiment in that a rounded arc surface 27 is provided at a position where the external conical surface is connected to the large diameter section. After so setting up, when the case was clashed with the interior conical surface of retaining ring, the damage of fillet arc face to interior conical surface was littleer, was favorable to promoting the life-span of silence choke valve.
EXAMPLE six
In this embodiment, as shown in fig. 9 to 10, the structures of the valve body and the retainer ring are the same as those of the fifth embodiment, and the difference is that the structure of the valve element is different from that of the fifth embodiment. In this embodiment, the connection section of the valve core is set as a step surface 23', and a fillet arc surface 27 is arranged at the position where the maximum diameter of the step surface is connected with the large-diameter section.
As shown in fig. 9, in the silent throttle valve of the present embodiment, in the limit position of the non-throttled state, a line contact is formed between the rounded arc surface 27 and the inner conical surface of the retainer.
It should be noted that the mute throttle valves of the second, fourth, fifth and sixth embodiments can be applied to the one-way throttle valve assembly of the third embodiment.
EXAMPLE seven
As shown in fig. 11, the bidirectional throttle valve assembly of the present embodiment includes a valve pipe 40, a valve seat installation cavity 41 is provided in the valve pipe 40, two silent throttle valves according to the first embodiment are installed in the valve seat installation cavity 41, and the installation directions of the two silent throttle valves are opposite.
In this embodiment, a filter screen 42 is disposed on one side of the mute throttle valve close to the end of the valve tube in the valve tube. Preferably, the screen 42 in this embodiment is made of stainless steel, and has a mesh size of 50 to 150 meshes.
It should be noted that, the present embodiment is a specific application of the mute throttle valve of the first embodiment, the bidirectional throttle valve assembly of the present embodiment can be directly applied to a variable frequency air conditioner, and both ends of the bidirectional throttle valve assembly are connected to a refrigerant pipeline of the air conditioner. In the use process of the bidirectional throttle valve component with the structure, one mute throttle valve is always in a throttling state, and the other mute throttle valve is always in a conducting state. Then, the mute throttle valve in the conducting state has the same mute effect as that of the mute throttle valve in the first embodiment, so that the mute effect of the air conditioner to which the bidirectional throttle valve assembly is applied is better.
In addition, the mute throttle valve used in the bidirectional throttle valve assembly of the present embodiment may be any one of the mute throttle valves of the second, fourth, fifth and sixth embodiments.
In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (10)
1. A mute throttle valve comprising at least:
the valve comprises a valve seat (10), wherein a valve hole (12) and a valve core cavity (11) which are communicated with each other are arranged in the valve seat, the inner diameter of the valve core cavity is larger than that of the valve hole, a transition conical surface (13) is arranged between the valve core cavity and the valve hole, and at least one liquid flow channel (14) which radially penetrates through the wall of the valve core cavity is arranged on the wall of the valve core cavity, close to the transition conical surface, along the circumferential direction;
the valve core (20) is movably arranged in a valve core cavity of the valve seat, and one end of the valve core, facing the valve hole, is provided with a cambered surface (25) for contacting and sealing with the transition conical surface in a throttling state;
the valve core cavity structure is characterized by further comprising a retainer ring (30), wherein the retainer ring is fixedly arranged at one end, far away from the valve hole, of the valve core cavity, the retainer ring is provided with an inner conical hole (32) close to one side of the valve core cavity and an axial guide hole (31) far away from one side of the valve core cavity, the inner conical hole is communicated with the guide hole, and the aperture of the position with the largest aperture of the inner conical hole is not smaller than the inner diameter of the valve core cavity;
the valve core comprises a large-diameter section (21) close to one side of the valve hole and a small-diameter section (22) close to one side of the retainer ring, a connecting section is arranged between the large-diameter section and the small-diameter section, the outer diameter of the small-diameter section is matched with the inner diameter of the guide hole, and the gap between the small-diameter section and the guide hole is larger than the gap between the large-diameter section and the valve core cavity; when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the position where the large-diameter section is connected with the connecting section and the inner conical surface of the inner conical hole form line contact.
2. A quiet throttle valve according to claim 1 characterized in that said engagement section is provided with an outer conical surface (23) having a cone angle β which is larger than the cone angle α of the inner conical bore.
3. A silence throttle valve according to claim 2 characterized in that the position where the external conical surface connects with the large diameter section is provided with a round arc surface (27).
4. A silence throttle valve according to claim 1 characterized in that the connecting section is provided with a step surface (23') and the position where the maximum diameter of the step surface is connected with the large diameter section is provided with a round arc surface (27).
5. The mute throttle valve according to claim 1, characterized in that a check ring installation cavity (15) is arranged at one end of the valve core cavity far away from the valve hole, a limit step (16) is arranged at the bottom of the check ring installation cavity, and a limit surface (33) matched with the limit step is arranged at one end of the check ring facing the valve core.
6. A mute throttle valve comprising at least:
the valve comprises a valve seat (10), wherein a valve hole (12) and a valve core cavity (11) which are communicated with each other are arranged in the valve seat, the inner diameter of the valve core cavity is larger than that of the valve hole, a transition conical surface (13) is arranged between the valve core cavity and the valve hole, and at least one liquid flow channel (14) which radially penetrates through the wall of the valve core cavity is arranged on the wall of the valve core cavity, close to the transition conical surface, along the circumferential direction;
the valve core (20) is movably arranged in a valve core cavity of the valve seat, and one end of the valve core, facing the valve hole, is provided with a cambered surface (25) for contacting and sealing with the transition conical surface in a throttling state;
the valve core cavity structure is characterized by further comprising a retainer ring (30), wherein the retainer ring is fixedly arranged at one end, far away from the valve hole, of the valve core cavity, the retainer ring is provided with an inner conical hole (32) close to one side of the valve core cavity and an axial guide hole (31) far away from one side of the valve core cavity, the inner conical hole is communicated with the guide hole, and the aperture of the position with the largest aperture of the inner conical hole is not smaller than the inner diameter of the valve core cavity;
the valve core comprises a large-diameter section (21) close to one side of the valve hole and a small-diameter section (22) close to one side of the retainer ring, a connecting section is arranged between the large-diameter section and the small-diameter section, an outer conical surface (23) is arranged on the connecting section, the conical angle β of the outer conical surface is smaller than the conical angle α of the inner conical hole, the outer diameter of the small-diameter section is matched with the inner diameter of the guide hole, the gap between the small-diameter section and the guide hole is larger than the gap between the large-diameter section and the valve core cavity, and when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the connecting position of the inner conical hole and the guide hole is.
7. A silence throttle valve according to claim 6 characterized in that the position where the inner cone hole connects with the guide hole is provided with an arc transition surface (34).
8. The quiet throttle valve of any one of claims 1 to 7 wherein the length of the small diameter section is 1/10 to 1/2 of the total length of the spool.
9. A throttle valve assembly, characterized by at least comprising a valve tube (40), a valve seat installation cavity (41) is arranged in the valve tube, the mute throttle valve of any one of claims 1-8 is arranged in the valve seat installation cavity, and filter screens are arranged in the valve tube at both ends of the mute throttle valve.
10. A throttle valve assembly, characterized by at least comprising a valve pipe (40), wherein a valve seat installation cavity (41) is arranged in the valve pipe, two mute throttle valves according to any one of claims 1-8 are installed in the valve seat installation cavity, the installation directions of the two mute throttle valves are opposite, and a filter screen is arranged on one side of the mute throttle valve close to the end part of the valve pipe in the valve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920869055.4U CN210318713U (en) | 2019-06-11 | 2019-06-11 | Mute throttle valve and throttle valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920869055.4U CN210318713U (en) | 2019-06-11 | 2019-06-11 | Mute throttle valve and throttle valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318713U true CN210318713U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920869055.4U Active CN210318713U (en) | 2019-06-11 | 2019-06-11 | Mute throttle valve and throttle valve assembly |
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| Country | Link |
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| CN (1) | CN210318713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454602A (en) * | 2019-06-11 | 2019-11-15 | 新昌县丰亿电器有限公司 | A kind of mute throttle valve and throttle valve component |
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2019
- 2019-06-11 CN CN201920869055.4U patent/CN210318713U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454602A (en) * | 2019-06-11 | 2019-11-15 | 新昌县丰亿电器有限公司 | A kind of mute throttle valve and throttle valve component |
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