CN115773394B - Residual pressure valve and air conditioning chamber - Google Patents
Residual pressure valve and air conditioning chamber Download PDFInfo
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- CN115773394B CN115773394B CN202310102498.1A CN202310102498A CN115773394B CN 115773394 B CN115773394 B CN 115773394B CN 202310102498 A CN202310102498 A CN 202310102498A CN 115773394 B CN115773394 B CN 115773394B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The embodiment of the invention provides a residual pressure valve and an air conditioning chamber, which relate to the field of indoor pressure regulation. The deformation amount of the elastic piece is regulated through the regulating piece, so that the elastic force applied to the valve by the elastic piece can be regulated, and the indoor pressure required by the opening of the vent of the valve is regulated.
Description
Technical Field
The invention relates to the field of indoor pressure regulation, in particular to a residual pressure valve and an air conditioning chamber.
Background
The residual pressure valve is a device arranged for maintaining a certain indoor static pressure so as to realize the energy-consumption-free automatic control of the positive pressure of the air conditioning chamber.
The existing residual pressure valve generally adopts weights such as a heavy hammer to balance wind pressure, and the weights such as the heavy hammer are constant in weight, so that the adjusting range of the valve opening pressure is smaller.
Disclosure of Invention
The invention aims to provide a residual pressure valve and an air conditioning chamber, which can effectively enlarge the adjusting range of the opening pressure of the valve, thereby enlarging the adjusting range of the pressure difference between the inner side and the outer side of the residual pressure valve and enabling the pressure difference between the inner side and the outer side of the residual pressure valve to achieve the required effect.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a residual pressure valve comprising:
a frame provided with a vent;
a valve rotatably mounted to the frame for opening or closing the vent;
the elastic piece is connected with the valve and used for enabling the valve to generate a trend of closing the ventilation opening;
the adjusting piece is connected to the elastic piece and used for adjusting the deformation quantity of the elastic piece so as to adjust the pressure required by the valve to open the ventilation opening.
In an alternative embodiment, the valve comprises a door plate and a rotating shaft fixed on the door plate, wherein the rotating shaft is rotatably connected with the frame around the axis of the rotating shaft, and the door plate is used for opening or closing the ventilation opening;
the elastic piece is a spring, one end of the spring is connected with the rotating shaft, and the other end of the spring is connected with the adjusting piece.
In an alternative embodiment, the spring is a coil spring, and the coil spring is sleeved on the rotating shaft and one end of the coil spring is connected with the rotating shaft;
the adjusting piece comprises a driving piece and a driven wheel which are in transmission connection, the driving piece is rotatably arranged on the frame, the driven wheel is rotatably sleeved on the rotating shaft, and one end, far away from the rotating shaft, of the coil spring is connected with the driven wheel.
In an alternative embodiment, the two ends of the coil spring are respectively provided with a first inserting piece and a second inserting piece, the rotating shaft is provided with a first inserting groove, the first inserting groove is in inserting fit with the first inserting piece, the adjusting piece is provided with a second inserting groove, and the second inserting groove is in inserting fit with the second inserting piece.
In an alternative embodiment, the end face of the driven wheel is provided with a containing groove, and the coil spring is located in the containing groove and one end far away from the rotating shaft is connected to the inner wall of the containing groove.
In an alternative embodiment, the driving member is a worm screw and the driven wheel is a worm wheel.
In an alternative embodiment, the driving member includes a driving gear and a driving shaft, the driving gear is fixedly sleeved on the driving shaft, the driving shaft is rotatably connected to the frame around its own axis, the driven wheel is a driven gear, and the driven gear is meshed with the driving gear.
In an alternative embodiment, the driving shaft is fixedly sleeved with a ratchet, the frame is provided with a swingable ratchet, when the ratchet is matched with the ratchet, the driving shaft can only drive the driving gear to rotate forward so as to increase the deformation of the spring through the driven gear, and when the ratchet is separated from the ratchet, the driving shaft can drive the driving gear to rotate reversely so as to reduce the deformation of the spring through the driven gear.
In an alternative embodiment, the frame is provided with a mounting cavity, the elastic member and the adjusting member are located in the mounting cavity, and the adjusting member partially protrudes out of the mounting cavity.
In a second aspect, the present invention provides an air conditioning chamber, comprising a wall body and the residual pressure valve according to any of the foregoing embodiments, wherein the frame of the residual pressure valve is fixedly mounted on the wall body, and the ventilation opening is communicated with an inner space of the wall body.
The beneficial effects of the embodiment of the invention include, for example:
the residual pressure valve of the air conditioning chamber comprises a frame, a valve, an elastic piece and an adjusting piece, wherein the frame is provided with a vent, the valve is rotatably arranged on the frame and used for opening or closing the vent, the elastic piece is connected to the valve and used for enabling the valve to generate a trend of closing the vent, and the adjusting piece is connected to the elastic piece and used for adjusting the deformation of the elastic piece so as to adjust the pressure required by the valve to open the vent. The deformation amount of the elastic piece is regulated through the regulating piece, the elastic piece can be regulated to apply to the valve so as to enable the valve to close the elastic force of the vent, so that the indoor pressure required by opening the vent by the valve is regulated, namely the opening pressure of the valve is regulated. And by canceling the counterweight structures such as the heavy hammer and the like and replacing the counterweight structures with the elastic pieces and the adjusting pieces, the weight of the residual pressure valve can be reduced, and the installation space of the residual pressure valve can be saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first view of a residual pressure valve according to a first embodiment of the present invention when the valve closes a vent;
FIG. 2 is a first view of the residual pressure valve according to the first embodiment of the present invention when the valve opens the vent;
FIG. 3 is a second view of the residual pressure valve according to the first embodiment of the present invention when the valve closes the vent;
FIG. 4 is a section view of section A of FIG. 3;
fig. 5 is a schematic connection diagram of the rotating shaft, the elastic member and the adjusting member according to the first embodiment of the present invention.
Icon: 10-residual pressure valve; 100-frames; 110-vents; 120-mounting cavity; 200-valve; 210-a door panel; 220-rotating shaft; 222-a first socket; 300-elastic member; 310-a first plug-in piece; 320-a second plug-in piece; 400-adjusting piece; 410-an active member; 420-driven wheel; 422-a receiving slot; 424-second mating groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
First embodiment:
referring to fig. 1, 2 and 3, an embodiment of the present invention provides an air conditioning room, which includes a wall body and a residual pressure valve 10, wherein the wall body is provided with a mounting opening, and the residual pressure valve 10 is arranged at the mounting opening of the wall body for adjusting the pressure difference between the inside and the outside of the air conditioning room.
In detail, referring to fig. 4 and 5, the residual pressure valve 10 includes a frame 100, a valve 200, an elastic member 300 and an adjusting member 400, the frame 100 is provided with a vent 110, the frame 100 is fixedly installed at an installation opening of a wall, and the vent 110 is communicated with a space inside the wall (i.e., an indoor space). A valve 200 is rotatably mounted to the frame 100 for opening or closing the vent 110. The elastic member 300 is connected to the valve 200 for causing the valve 200 to generate a tendency to close the vent 110. The adjusting member 400 is connected to the elastic member 300 for adjusting the deformation amount of the elastic member 300, thereby adjusting the pressure required for the valve 200 to open the vent 110.
The deformation amount of the elastic member 300 is adjusted by the adjusting member 400, so that the elastic force applied to the valve 200 by the elastic member 300 to close the vent 110 can be adjusted, and thus the indoor pressure required by the valve 200 to open the vent 110, that is, the opening pressure of the valve 200, is adjusted, and the adjusting range of the opening pressure of the valve 200 is larger due to the larger range of the deformation amount of the elastic member 300, so that the adjusting range of the internal and external pressure difference (that is, the indoor and external pressure difference of an air conditioner) of the residual pressure valve 10 can be effectively increased, the internal and external pressure difference of the residual pressure valve 10 can achieve the required effect, and the defects of the prior art can be overcome. Moreover, by eliminating the weight structure such as the weight and replacing the weight structure with the elastic member 300 and the adjusting member 400, the weight of the residual pressure valve 10 can be reduced, and the installation space of the residual pressure valve 10 can be saved.
Referring to fig. 3 and 4 again, the frame 100 has a rectangular frame structure, and a mounting cavity 120 is disposed on the left side or the right side thereof. In this embodiment, the mounting chamber 120 is disposed on the right side. In other embodiments, the mounting cavity 120 may also be provided on the left side.
The valve 200 may have different structures according to needs, in this embodiment, the valve 200 includes a door plate 210 and a rotating shaft 220 fixed on the door plate 210, where the rotating shaft 220 is rotatably connected to the frame 100 around its own axis, so that the door plate 210 is rotatably mounted to the frame 100, and the door plate 210 is shaped and sized to fit the ventilation opening 110, so as to open or close the ventilation opening 110.
Further, the rotating shaft 220 may be fixed on the door plate 210 by adopting different structures according to the requirement, in this embodiment, the rotating shaft 220 and the door plate 210 are fixed in an inserting manner, the door plate 210 is provided with an inserting hole fixed in an inserting manner with the rotating shaft 220, in detail, the outer wall of the rotating shaft 220 is provided with a first plane portion, and the inner wall of the inserting hole is provided with a second plane portion, and the second plane portion is attached to the first plane portion so as to prevent the rotating shaft 220 from rotating relative to the door plate 210.
The number of the rotating shafts 220 is two, and the two rotating shafts 220 are respectively fixed to the left and right top portions of the door panel 210. The two shafts 220 are overlapped in axis and rotatably connected to the left and right sides of the frame 100, respectively, to improve the installation stability of the valve 200. Since the installation cavity 120 is located on the right side of the frame 100 in the present embodiment, the rotation shaft 220 on the right side of the door panel 210 penetrates the installation cavity 120. In other embodiments, when the mounting cavity 120 is located on the left side of the frame 100, the mounting cavity 120 may also be penetrated by the rotating shaft 220 on the left side of the door panel 210.
Referring to fig. 5 again, the elastic member 300 is located in the mounting cavity 120, and the elastic member 300 can be selected from different types according to the requirement, in this embodiment, the elastic member 300 is a spring, and has a simple structure, low cost, large elastic force and large deformation range. One end of the spring is connected with the rotating shaft 220, and the other end is connected with the adjusting member 400. Thus, the adjusting member 400 can force the spring to deform to adjust the deformation of the spring, so as to adjust the elastic force applied to the rotating shaft 220 by the spring to close the ventilation opening 110 by the door 210, and further adjust the indoor pressure required by the door 210 to open the ventilation opening 110, i.e. the opening pressure of the valve 200. Since the range of the deformation amount of the spring is large, the adjustment range of the opening pressure is also large.
Further, the spring may be of different types according to the requirement, and in this embodiment, the spring is a coil spring, and the coil spring is sleeved on the rotating shaft 220 and has one end connected to the rotating shaft 220. Due to its own structural characteristics, the coil spring can be connected with the rotating shaft 220 more stably and reliably, and the occupied space can be reduced, that is, the coil spring can provide as large deformation amount as possible relative to other springs in a limited space where the installation cavity 120 is constant, so that the adjusting range of the opening pressure of the valve 200 is further improved.
The adjustment member 400 is located in the mounting cavity 120 and partially protrudes out of the mounting cavity 120 for an adjustment operation by a user. The adjusting member 400 may have different structures according to needs, and in this embodiment, the adjusting member 400 includes a driving member 410 and a driven member 420 in driving connection, where the driving member 410 and the driven member 420 are both located in the mounting cavity 120. The driving member 410 is rotatably disposed on the frame 100 and partially extends out of the mounting cavity 120, the driven wheel 420 is rotatably sleeved on the rotating shaft 220, and one end of the coil spring, which is far away from the rotating shaft 220, is connected with the driven wheel 420.
In order to save the installation space of the coil spring, in this embodiment, the end surface of the driven wheel 420 is provided with a circular accommodating groove 422, and the coil spring is located in the accommodating groove 422 and one end far away from the rotating shaft 220 is connected to the inner wall of the accommodating groove 422, specifically to the peripheral wall of the accommodating groove 422.
Referring to fig. 5 again, in order to improve the stability of the installation of the coil spring, in this embodiment, the two ends of the coil spring are respectively provided with a first inserting tab 310 and a second inserting tab 320, the first inserting tab 310 and the second inserting tab 320 are formed by bending two ends of the coil spring, the rotating shaft 220 is provided with a first inserting slot 222, the first inserting slot 222 is opened at the peripheral wall of the rotating shaft 220 and is parallel to or covers the axis of the rotating shaft 220, the first inserting slot 222 is in inserting fit with the first inserting tab 310, the adjusting member 400 is provided with a second inserting slot 424, the second inserting slot 424 is opened at the peripheral wall of the accommodating slot 422 and is parallel to or covers the axis of the driven wheel 420, and the second inserting slot 424 is in inserting fit with the second inserting tab 320. By the insertion fit of the sheet structure and the groove structure, the contact area of the coil spring with the rotating shaft 220 and the driven wheel 420 can be effectively increased, thereby improving the installation stability and reliability of the coil spring.
The driving member 410 and the driven wheel 420 may have different structures according to requirements, and in this embodiment, the driving member 410 is a worm, and the driven wheel 420 is a worm wheel. At least one end of the worm extends out of the mounting cavity 120 for rotation by a user. The worm and gear structure is adopted as the adjusting member 400, and has the advantages that after a user drives the worm wheel to rotate to adjust the deformation amount of the coil spring through the worm, the worm wheel cannot rotate to be in a state before adjustment due to the acting force of the coil spring, because the worm and gear structure has a self-locking function, the worm can rotate forward under the action of external force to drive the worm wheel to increase the deformation amount of the coil spring, and after the external force disappears, the worm wheel cannot drive the worm to rotate reversely under the action of the elastic force of the coil spring, so that the coil spring is restored to the state before adjustment, namely, the deformation amount of the coil spring can be maintained in a state after adjustment due to the self-locking characteristic of the worm and gear structure and cannot be restored.
The working principle and the working process of the residual pressure valve 10 are as follows:
when the opening pressure of the valve 200 needs to be increased, a user can rotate the worm in a preset direction by bare hands or by using a tool, so that the worm wheel can be driven to rotate along the preset direction, the deformation of the coil spring is increased, the deformation amount of the coil spring is increased, the elastic force of the coil spring applied to the rotating shaft 220, which enables the door plate 210 to close the ventilation opening 110, is increased, and the indoor pressure required by the valve 200 to open the ventilation opening 110 is increased. After the adjustment is completed, the worm wheel can be subjected to the elastic force of the coil spring after the deformation is aggravated, but due to the self-locking effect of the worm wheel and worm structure, the worm wheel can not rotate in the direction opposite to the preset direction so as to drive the worm to rotate reversely, so that the coil spring is maintained in the state after the deformation amount adjustment.
When the opening pressure of the valve 200 needs to be reduced, a user rotates the worm in the opposite direction to the preset direction by bare hands or by using a tool, so that the worm wheel can be driven to rotate in the opposite direction to the preset direction, deformation of the coil spring is reduced, deformation amount of the coil spring is reduced, elastic force of the coil spring applied to the rotating shaft 220 for enabling the door plate 210 to close the ventilation opening 110 is reduced, and indoor pressure required by the valve 200 for opening the ventilation opening 110 is reduced.
In the above adjusting process, the deformation range of the coil spring is large, so that the adjusting range of the opening pressure of the valve 200 is also large, thus a user can adjust the opening pressure of the valve 200 in a large range according to the actual requirement, and the pressure difference between the inside and the outside of the residual pressure valve 10 is adjusted, so that the pressure difference between the inside and the outside of the air conditioning chamber reaches the required effect, and the efficient operation of the air conditioning chamber is ensured.
Second embodiment:
the present embodiment provides an air conditioning chamber having substantially the same overall construction, operation principle and technical effects as those of the air conditioning chamber provided in the first embodiment, except for the specific structure of the regulator 400 of the residual pressure valve 10.
In this embodiment, the driving member 410 and the driven member 420 of the adjusting member 400 no longer adopt a worm gear structure, but adopt a gear structure. In detail, the driving member 410 includes a driving gear fixedly sleeved on the driving shaft, and a driving shaft rotatably coupled to the frame 100 about its own axis, and the driven wheel 420 is a driven gear engaged with the driving gear. Furthermore, the driving gear and the driven gear are bevel gears, so that the transmission efficiency and stability are improved, and meanwhile, the installation and adjustment are convenient.
In order to prevent the driving shaft from driving the driving gear to rotate forward, so that after the deformation amount of the coil spring is increased through the driven gear, the driven gear drives the driving gear and the driving shaft to rotate reversely under the action of the elastic force of the coil spring, so that the coil spring automatically restores to the state before adjustment, in this embodiment, the driving shaft is fixedly sleeved with a ratchet wheel, the frame 100 is provided with a swingable ratchet wheel, the ratchet wheel is located outside the installation cavity 120, and the ratchet wheel is located on the outer wall of the frame 100. When the ratchet is matched with the ratchet, the driving shaft can only drive the driving gear to rotate forward so as to increase the deformation of the spring through the driven gear, and when the ratchet is separated from the ratchet, the driving shaft can drive the driving gear to rotate reversely so as to reduce the deformation of the spring through the driven gear.
The working principle and the working process of the residual pressure valve 10 are as follows:
when the opening pressure of the valve 200 needs to be increased, a user can rotate the driving shaft and the driving gear in a manual or tool forward direction, and the driven gear can be driven to rotate along a preset direction, so that deformation of the coil spring is increased, deformation amount of the coil spring is increased, elastic force of the coil spring applied to the rotating shaft 220, which enables the door plate 210 to close the ventilation opening 110, is increased, and indoor pressure required by the valve 200 to open the ventilation opening 110 is increased. After the adjustment is completed, the ratchet wheel and the ratchet are in a matched state, the ratchet wheel and the ratchet wheel jointly generate a unidirectional limiting effect, and the driving shaft and the driving gear cannot rotate reversely, so that even if the driven gear can be subjected to the elastic force of the coil spring after the deformation is intensified, the coil spring can not rotate along the direction opposite to the preset direction due to the limiting effect of the driving gear, and the coil spring is maintained in the state after the deformation is adjusted.
When the opening pressure of the valve 200 needs to be reduced, the user needs to dial the ratchet first to make the ratchet separate from the ratchet, then reversely rotate the driving shaft and the driving gear by hand or by using a tool, and then can drive the driven gear to rotate along the direction opposite to the preset direction, thereby reducing the deformation of the coil spring and reducing the deformation amount of the coil spring, thereby reducing the elastic force applied to the rotating shaft 220 by the coil spring to enable the door plate 210 to close the ventilation opening 110, and further reducing the indoor pressure required by the valve 200 to open the ventilation opening 110. In fact, when the ratchet is separated from the ratchet wheel, after the unidirectional limiting effect generated by the ratchet wheel and the ratchet wheel is eliminated, the driven gear can rotate along the direction opposite to the preset direction under the action of the elastic force of the coil spring, so that the driving gear and the driving shaft are driven to rotate reversely, at the moment, a user is required to control the reverse rotation degree of the driving shaft, and when the reverse rotation degree reaches the required degree, the ratchet wheel is stirred to be matched with the ratchet wheel again.
The present invention is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. A residual pressure valve (10), characterized by comprising:
a frame (100), the frame (100) being provided with a vent (110);
a valve (200), the valve (200) being rotatably mounted to the frame (100) for opening or closing the vent (110);
-a resilient member (300), said resilient member (300) being connected to said valve (200) for causing said valve (200) to create a tendency to close said vent (110);
an adjusting member (400), wherein the adjusting member (400) is connected to the elastic member (300) and is used for adjusting the deformation amount of the elastic member (300) so as to adjust the pressure required by the valve (200) to open the ventilation opening (110);
the valve (200) comprises a door plate (210) and a rotating shaft (220) fixed on the door plate (210), the rotating shaft (220) is rotatably connected with the frame (100) around the axis of the rotating shaft, and the door plate (210) is used for opening or closing the ventilation opening (110);
the elastic piece (300) is a spring, one end of the spring is connected with the rotating shaft (220), and the other end of the spring is connected with the adjusting piece (400);
the spring is a coil spring, and the coil spring is sleeved on the rotating shaft (220) and one end of the coil spring is connected with the rotating shaft (220);
the adjusting piece (400) comprises a driving piece (410) and a driven wheel (420) which are in transmission connection, the driving piece (410) is rotatably arranged on the frame (100), the driven wheel (420) is rotatably sleeved on the rotating shaft (220), and one end, far away from the rotating shaft (220), of the coil spring is connected with the driven wheel (420).
2. The residual pressure valve (10) according to claim 1, wherein a first insertion tab (310) and a second insertion tab (320) are respectively arranged at two ends of the coil spring, the rotating shaft (220) is provided with a first insertion slot (222), the first insertion slot (222) is in insertion fit with the first insertion tab (310), the regulating member (400) is provided with a second insertion slot (424), and the second insertion slot (424) is in insertion fit with the second insertion tab (320).
3. The residual pressure valve (10) according to claim 1, wherein an accommodating groove (422) is formed in an end surface of the driven wheel (420), and the coil spring is located in the accommodating groove (422) and one end far away from the rotating shaft (220) is connected to an inner wall of the accommodating groove (422).
4. A residual pressure valve (10) according to any one of claims 1-3, characterized in that the driving member (410) is a worm screw and the driven wheel (420) is a worm wheel.
5. A residual pressure valve (10) according to any one of claims 1-3, characterized in that the driving member (410) comprises a driving gear and a driving shaft, the driving gear is fixedly sleeved on the driving shaft, the driving shaft is rotatably connected to the frame (100) around its own axis, and the driven wheel (420) is a driven gear, and the driven gear is meshed with the driving gear.
6. The residual pressure valve (10) according to claim 5, wherein the drive shaft is fixedly sleeved with a ratchet, the frame is provided with a swingable ratchet, the drive shaft can only drive the driving gear to rotate forward when the ratchet is matched with the ratchet so as to increase the deformation amount of the spring through the driven gear, and the drive shaft can drive the driving gear to rotate reversely when the ratchet is separated from the ratchet so as to reduce the deformation amount of the spring through the driven gear.
7. The residual pressure valve (10) according to claim 1, characterized in that the frame (100) is provided with a mounting cavity (120), the elastic member (300) and the adjusting member (400) being located in the mounting cavity (120), the adjusting member (400) partially protruding out of the mounting cavity (120).
8. An air conditioning room characterized by comprising a wall body and the residual pressure valve (10) as claimed in claim 1, wherein a frame (100) of the residual pressure valve (10) is fixedly installed on the wall body, and the ventilation opening (110) is communicated with an inner space of the wall body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310102498.1A CN115773394B (en) | 2023-02-13 | 2023-02-13 | Residual pressure valve and air conditioning chamber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310102498.1A CN115773394B (en) | 2023-02-13 | 2023-02-13 | Residual pressure valve and air conditioning chamber |
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| CN115773394A CN115773394A (en) | 2023-03-10 |
| CN115773394B true CN115773394B (en) | 2023-05-02 |
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| CN200955616Y (en) * | 2006-07-31 | 2007-10-03 | 靖江市八达暖通设备制造有限公司 | Multifunction smoke-proof valve device |
| CN207145685U (en) * | 2017-09-04 | 2018-03-27 | 丁美娟 | A kind of high-strength fire-retardant check-valves |
| CN112901836A (en) * | 2020-12-29 | 2021-06-04 | 成都市建筑设计研究院 | Residual pressure valve adopting movable valve plate and preparation method |
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| CN115773394A (en) | 2023-03-10 |
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