CN115773394A - Residual pressure valve and air conditioning chamber - Google Patents
Residual pressure valve and air conditioning chamber Download PDFInfo
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- CN115773394A CN115773394A CN202310102498.1A CN202310102498A CN115773394A CN 115773394 A CN115773394 A CN 115773394A CN 202310102498 A CN202310102498 A CN 202310102498A CN 115773394 A CN115773394 A CN 115773394A
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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, and relates to the field of indoor pressure regulation. The deformation quantity of elastic component is adjusted through the regulating part, can adjust the elastic component and apply the elastic force for the valve to the required indoor pressure of vent is opened to the governing valve, because the scope of the deformation quantity of elastic component is great, consequently the adjusting range of the opening pressure of this valve is great, just so can effectively increase the adjusting range of excess pressure valve inside and outside pressure differential, makes the inside and outside pressure differential of excess pressure valve reach required effect.
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 which is arranged for maintaining a certain indoor static pressure so as to realize the automatic control of the positive pressure of the air-conditioning chamber without energy consumption.
The existing residual pressure valve generally adopts counter weights such as a heavy hammer to balance the air pressure, and the weight of the counter weights such as the heavy hammer is constant, so that the adjustment range of the opening pressure of the valve is smaller.
Disclosure of Invention
The object of the present invention includes, for example, providing a residual pressure valve and an air conditioning chamber, which can effectively increase the adjustment range of the valve opening pressure, thereby increasing the adjustment range of the pressure difference inside and outside the residual pressure valve, so that the pressure difference inside and outside the residual pressure valve can 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;
an elastic member connected to the valve for causing the valve to tend to close the vent;
the adjusting piece is connected to the elastic piece and used for adjusting the deformation amount 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, the rotating shaft is rotatably connected to the frame around the axis of the rotating shaft, and the door plate is used for opening or closing the ventilation opening;
the elastic part 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 part.
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 part comprises a driving part and a driven wheel which are in transmission connection, the driving part 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 optional embodiment, a first insertion piece and a second insertion piece are respectively arranged at two ends of the coil spring, the rotating shaft is provided with a first insertion groove, the first insertion groove is in insertion fit with the first insertion piece, the adjusting piece is provided with a second insertion groove, and the second insertion groove is in insertion fit with the second insertion piece.
In an alternative embodiment, the end face of the driven wheel is provided with a receiving groove, and the coil spring is located in the receiving groove, and one end of the coil spring, which is far away from the rotating shaft, is connected to the inner wall of the receiving groove.
In an alternative embodiment, the driving member is a worm and the driven wheel is a worm wheel.
In an optional implementation manner, 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 gear is a driven gear, and the driven gear is engaged with the driving gear.
In an alternative embodiment, the driving shaft is fixedly sleeved with a ratchet wheel, the frame is provided with a swingable ratchet, when the ratchet wheel is matched with the ratchet wheel, the driving shaft can only drive the driving gear to rotate in a forward direction so as to increase the deformation amount of the spring through the driven gear, and when the ratchet wheel is disengaged from the ratchet wheel, the driving shaft can drive the driving gear to rotate in a reverse direction so as to decrease the deformation amount of the spring through the driven gear.
In an alternative embodiment, the frame is provided with a mounting cavity, the resilient member and the adjustment member being located within the mounting cavity, the adjustment member partially protruding out of the mounting cavity.
In a second aspect, the invention provides an air conditioning chamber, which comprises a wall body and the residual pressure valve in any one of the foregoing embodiments, wherein a frame of the residual pressure valve is fixedly installed on the wall body, and the vent is communicated with the inner space of the wall body.
The beneficial effects of the embodiment of the invention include, for example:
this excess pressure valve of air conditioning room includes frame, valve, elastic component and regulating part, and the frame is provided with the vent, and the valve is rotationally installed in the frame for open or close the vent, and the elastic component is connected in the valve for make the valve produce the trend of closing the vent, and the regulating part is connected in the elastic component, is used for adjusting the deformation volume of elastic component, thereby adjusts the valve and opens the required pressure in vent. The deformation volume of elastic component is adjusted through the regulating part, can adjust the elastic component and apply for the valve so that the valve closes the elastic force of vent, thereby adjust the required indoor pressure in valve opening vent, also be the opening pressure of valve, because the range of the deformation volume of elastic component is great, consequently the control range of the opening pressure of this valve is great, just so can effectively increase the control range of surplus pressure valve inside and outside pressure differential (be the air conditioner indoor and outdoor pressure differential), make the inside and outside pressure differential of surplus pressure valve reach required effect, compensate prior art's defect. In addition, the weight of the residual pressure valve can be reduced by replacing a counterweight structure such as a heavy hammer with an elastic part and an adjusting part, and the installation space of the residual pressure valve is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a first perspective view of a valve of a residual pressure valve according to a first embodiment of the present invention closing a vent;
fig. 2 is a first perspective view of a valve 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 perspective view of the valve of the residual pressure valve closing the vent opening, according to the first embodiment of the present invention;
FIG. 4 is a cross-sectional 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.
An icon: 10-residual pressure valve; 100-a frame; 110-a vent; 120-a mounting cavity; 200-a valve; 210-a door panel; 220-a rotating shaft; 222-a first mating groove; 300-a resilient member; 310-a first patch; 320-a second patch; 400-an adjustment member; 410-an active part; 420-driven wheel; 422-accommodating the tank; 424-second mating groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of 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 present invention, 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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which the product of the present invention is used to usually place, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The first embodiment:
referring to fig. 1, 2, and 3, an embodiment of the present invention provides an air conditioning chamber, which includes a wall body and a residual pressure valve 10, where the wall body is provided with an installation opening, and the residual pressure valve 10 is disposed at the installation opening of the wall body and is used to adjust an internal and external pressure difference of the air conditioning chamber.
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, wherein 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 (i.e., an indoor space) inside the wall. The valve 200 is rotatably installed at the frame 100 to open or close the ventilation opening 110. The elastic member 300 is connected to the valve 200 for causing the valve 200 to have a tendency to close the vent 110. The adjusting member 400 is connected to the elastic member 300 for adjusting the amount of deformation 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, the elastic force applied to the valve 200 by the elastic member 300 to close the vent 110 by the valve 200 can be adjusted, so that the indoor pressure required by the vent 110 is adjusted by the valve 200, namely, the opening pressure of the valve 200, and the range of the deformation amount of the elastic member 300 is large, so that the adjusting range of the opening pressure of the valve 200 is large, the adjusting range of the pressure difference between the inside and the outside of the residual pressure valve 10 (namely, the pressure difference between the inside and the outside of the air conditioner) can be effectively increased, the pressure difference between the inside and the outside of the residual pressure valve 10 can achieve the required effect, and the defects of the prior art are compensated. Further, by replacing the elastic member 300 and the adjusting member 400 with a weight structure such as a weight, 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 is a rectangular frame structure, and a mounting cavity 120 is disposed on the left side or the right side of the frame. In this embodiment, the mounting cavity 120 is disposed on the right side. In other embodiments, the mounting cavity 120 may be disposed on the left side.
The valve 200 may have different structures as required, and in this embodiment, the valve 200 includes a door panel 210 and a rotating shaft 220 fixed to the door panel 210, the rotating shaft 220 is rotatably connected to the frame 100 about its own axis, so that the door panel 210 is rotatably mounted to the frame 100, and the door panel 210 is shaped and sized to fit the ventilation opening 110 for opening or closing the ventilation opening 110.
Further, the pivot 220 can adopt different structures to be fixed in door plant 210 as required, and in this embodiment, pivot 220 and door plant 210 are pegged graft fixedly, and door plant 210 sets up the jack of pegging graft fixedly with pivot 220, and in detail, the outer wall of pivot 220 is provided with first plane portion, and the inner wall of jack is provided with the second plane portion, and the second plane portion is laminated with first plane portion to prevent that pivot 220 from rotating for door plant 210.
The number of the rotating shafts 220 is two, and the two rotating shafts 220 are respectively fixed on the top of the left side and the top of the right side of the door panel 210. The two rotating shafts 220 are axially overlapped and rotatably connected to the left and right sides of the frame 100, respectively, to improve the installation stability of the valve 200. In this embodiment, since the installation cavity 120 is located at the right side of the frame 100, the rotating shaft 220 at the right side of the door panel 210 penetrates through the installation cavity 120. In other embodiments, when the installation cavity 120 is located on the left side of the frame 100, the rotation shaft 220 on the left side of the door panel 210 may also penetrate through the installation cavity 120.
Referring to fig. 5 again, the elastic member 300 is located in the mounting cavity 120, and the elastic member 300 may be of different types according to the requirement. One end of the spring is connected with the rotation shaft 220, and the other end is connected with the adjusting member 400. Thus, the adjusting member 400 can force the spring to deform, so as to adjust the deformation amount of the spring, thereby adjusting the elastic force applied by the spring to the rotating shaft 220 to make the door panel 210 close the ventilation opening 110, and further adjusting the indoor pressure required by the door panel 210 to open the ventilation opening 110, i.e. the opening pressure of the valve 200. The range of adjustment of the opening pressure is large because of the large range of deformation of the spring.
Further, the spring may be of different types as required, 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 the structural characteristics of the coil spring, the coil spring can be more stably and reliably connected with the rotating shaft 220 on the one hand, and on the other hand, the occupied space can be reduced, namely, the coil spring can provide the largest deformation amount relative to other springs in the limited space with the constant installation cavity 120, so that the adjustment range of the opening pressure of the valve 200 is further improved.
The adjusting member 400 is located in the mounting cavity 120 and partially protrudes out of the mounting cavity 120 for the adjusting operation of the user. The adjusting member 400 may have different structures as required, and in this embodiment, the adjusting member 400 includes a driving member 410 and a driven member 420 that are connected in a transmission manner, and both the driving member 410 and the driven member 420 are 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 away from the rotating shaft 220 is connected to 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 receiving groove 422, and the end of the coil spring located in the receiving groove 422 and far away from the rotating shaft 220 is connected to the inner wall of the receiving groove 422, specifically to the peripheral wall of the receiving groove 422.
Referring to fig. 5 again, in order to improve the stability of the installation of the coil spring, in this embodiment, two ends of the coil spring are respectively provided with a first insertion tab 310 and a second insertion tab 320, the first insertion tab 310 and the second insertion tab 320 are formed by bending two ends of the coil spring, the rotating shaft 220 is provided with a first insertion groove 222, the first insertion groove 222 is formed in the peripheral wall of the rotating shaft 220 and is parallel to or covers the axis of the rotating shaft 220, the first insertion groove 222 is in insertion fit with the first insertion tab 310, the adjusting member 400 is provided with a second insertion groove 424, the second insertion groove 424 is formed in the peripheral wall of the accommodating groove 422 and is parallel to or covers the axis of the driven wheel 420, and the second insertion groove 424 is in insertion fit with the second insertion tab 320. Through the grafting cooperation of lamellar structure and slot-like structure, can effectively increase the area of contact of coil spring with pivot 220 and follow driving wheel 420 to improve the installation stability and the reliability of coil spring.
The driving part 410 and the driven wheel 420 may adopt different structures as required, in this embodiment, the driving part 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 user-driven rotation. The advantage of adopting the worm and gear structure as the adjusting part 400 is that after the user drives the worm gear to rotate through the worm to adjust the deformation amount of the coil spring, the worm gear can not be rotated and restored to the state before no adjustment because of the acting force of the coil spring, because the worm and gear structure has the self-locking function, the self-locking function enables the worm to rotate forward under the action of the external force to drive the worm gear to increase the deformation amount of the coil spring, and the worm gear can not drive the worm to rotate backward under the action of the elastic force of the coil spring after the external force disappears, so that the coil spring is restored to the state before adjustment, namely, because of the self-locking characteristic of the worm and gear structure, the state after the adjustment of the deformation amount of the coil spring can be maintained, and can not be restored.
The working principle and the process of the residual pressure valve 10 are as follows:
when the opening pressure of valve 200 needs to be increased, the worm is rotated in the positive direction by a bare hand or a tool, so that the worm wheel can be driven to rotate along the preset direction, the deformation of the coil spring is intensified, the deformation amount of the coil spring is increased, the elastic force of the rotating shaft 220, which enables the door panel 210 to close the vent 110, is applied by the coil spring, and the indoor pressure required by the vent 110 is opened by the valve 200 is increased. After the regulation is accomplished, although the worm wheel can receive the elastic force of the coil spring after the deformation aggravation, because the auto-lock action of worm gear structure, the worm wheel can not rotate in order to drive the worm antiport along the direction opposite with predetermineeing the direction to let the coil spring maintain the state after the deformation volume is adjusted.
When the opening pressure of the valve 200 needs to be reduced, a user can rotate the worm in the opposite direction to the preset direction by hands or using a tool to reversely rotate the worm, so that the deformation of the coil spring is reduced, the deformation amount of the coil spring is reduced, the elastic force applied to the rotating shaft 220 by the coil spring to enable the door panel 210 to close the ventilation opening 110 is reduced, and the indoor pressure required by the valve 200 to open the ventilation opening 110 is reduced.
In the 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 large, the opening pressure of the valve 200 can be adjusted by a user according to actual requirements in a large range, the pressure difference between the inner side and the outer side of the residual pressure valve 10 is adjusted, the pressure difference between the inner side and the outer side of the air conditioning chamber reaches a required effect, and efficient operation of the air conditioning chamber is guaranteed.
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 adjusting member 400 of the residual pressure valve 10.
In this embodiment, the driving member 410 and the driven member 420 of the adjusting member 400 do not adopt a worm gear structure, but adopt a gear structure. In detail, the driving member 410 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 100 around its axis, and the driven gear 420 is a driven gear engaged with the driving gear. Furthermore, the driving gear and the driven gear are both bevel gears, so that the transmission efficiency and the stability are improved, and meanwhile, the installation and the 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 elastic force of the coil spring, so that the coil spring automatically restores to the state before adjustment, in the embodiment, the driving shaft is fixedly sleeved with the ratchet, the frame 100 is provided with the swingable ratchet, the ratchet is located outside the installation cavity 120, and the ratchet is located on the outer wall of the frame 100. When the ratchet is matched with the ratchet wheel, the driving shaft can only drive the driving gear to rotate in the forward direction so as to increase the deformation amount of the spring through the driven gear, and when the ratchet is separated from the ratchet wheel, the driving shaft can drive the driving gear to rotate in the reverse direction so as to reduce the deformation amount of the spring through the driven gear.
The working principle and the process of the residual pressure valve 10 are as follows:
when needing increase valve 200's opening pressure, the user is bare-handed or use tool forward rotation drive shaft and driving gear, can drive driven gear along presetting the direction rotation to aggravate the deformation of coil spring, the deformation volume of increase coil spring, thereby the increase coil spring is exerted the elasticity that makes door plant 210 close vent 110 for pivot 220, and then increase valve 200 opens the required indoor pressure of vent 110. After the regulation is accomplished, because ratchet and ratchet are in the coordinated state, both produce one-way restriction effect jointly, and drive shaft and driving gear can't the antiport, even consequently driven gear can receive the elastic force of the coil spring after the deformation aggravation, because the restriction effect of driving gear, also can not follow and predetermine the opposite direction rotation of direction to let the coil spring maintain the state after the deformation volume is adjusted.
When the opening pressure of the valve 200 needs to be reduced, a user needs to firstly dial the ratchet to enable the ratchet to be separated from the ratchet, then the driven gear can be driven to rotate in the direction opposite to the preset direction by bare hands or by using tools to reversely rotate the driving shaft and the driving gear, so that the deformation of the coil spring is reduced, 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 is reduced, and the indoor pressure required by opening the ventilation opening 110 by the valve 200 is further reduced. In fact, when the ratchet is disengaged from the ratchet wheel, after the one-way limiting action generated by the ratchet and the ratchet wheel disappears, the driven gear can rotate in 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 in the reverse direction, the reverse rotation degree of the driving shaft needs to be controlled by a user, and when the reverse rotation degree reaches the required degree, the ratchet is stirred to be matched with the ratchet wheel again.
The above description is only for the specific embodiments 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 are also within the scope of the present invention.
Claims (10)
1. A residual pressure valve (10), 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), the resilient member (300) being connected to the valve (200) for causing the valve (200) to tend to close the 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).
2. The residual pressure valve (10) according to claim 1, wherein 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 to the frame (100) around the axis thereof, and the door plate (210) is used for opening or closing the ventilation opening (110);
the elastic part (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 part (400).
3. The residual pressure valve (10) according to claim 2, wherein the spring is a coil spring, 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).
4. The residual pressure valve (10) according to claim 3, characterized in that a first plug piece (310) and a second plug piece (320) are respectively arranged at two ends of the coil spring, the rotating shaft (220) is provided with a first plug groove (222), the first plug groove (222) is in plug fit with the first plug piece (310), the adjusting piece (400) is provided with a second plug groove (424), and the second plug groove (424) is in plug fit with the second plug piece (320).
5. The residual pressure valve (10) according to claim 3, wherein the end surface of the driven wheel (420) is provided with a receiving groove (422), and the coil spring is positioned in the receiving groove (422) and connected to the inner wall of the receiving groove (422) at the end far away from the rotating shaft (220).
6. The residual pressure valve (10) according to any of claims 3-5, characterized in that the driving member (410) is a worm and the driven wheel (420) is a worm wheel.
7. The residual pressure valve (10) according to any one of claims 3 to 5, wherein 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 an axis thereof, the driven gear (420) is a driven gear, and the driven gear is engaged with the driving gear.
8. The residual pressure valve (10) according to claim 7, wherein said drive shaft is fixedly secured with a ratchet wheel, said frame is provided with a swingable ratchet, said drive shaft can only drive said drive gear to rotate in a forward direction to increase the amount of deformation of said spring through said driven gear when said ratchet wheel is engaged with said ratchet wheel, and said drive shaft can drive said drive gear to rotate in a reverse direction to decrease the amount of deformation of said spring through said driven gear when said ratchet wheel is disengaged from said ratchet wheel.
9. The residual pressure valve (10) according to claim 1, characterized in that the frame (100) is provided with a mounting chamber (120), the elastic member (300) and the regulating member (400) are located in the mounting chamber (120), and the regulating member (400) partially protrudes out of the mounting chamber (120).
10. An air-conditioning chamber, characterized by comprising a wall body and the residual pressure valve (10) of 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 the inner space of the wall body.
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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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| CN202310102498.1A CN115773394B (en) | 2023-02-13 | 2023-02-13 | Residual pressure valve and air conditioning chamber |
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| CN115773394B CN115773394B (en) | 2023-05-02 |
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