Temperature control regulating valve and use thereof

Abstract

A temperature control adjusting valve and the use thereof. The temperature control adjusting valve comprises a mounting base (1) and a valve plate (2) arranged on an end surface of the mounting base (1); a valve hole (11) is formed in the mounting base (1), the valve hole (11) penetrating through the mounting base (1); the end of the valve plate (2) close to the valve hole (11) is slidably arranged with respect to the valve hole (11) so as to adapt to temperature changes. The temperature control regulating valve has a simple structure. When the temperature changes, the valve plate (2) deforms such that the position of the valve plate (2) with respect to the valve hole (11) gradually changes, thereby gradually closing the valve hole (11) or causing a valve plate (2) hole to gradually coincide with the valve hole (11). That is, the cross-sectional area for a fluid to flow gradually changes, so that the flow rate of the fluid is automatically adjusted as the temperature changes.

Description

Temperature control valve and its application Technical Field

[0001] The present application relates to the technical field of valves, and in particular to a temperature control valve and its application. Background Art

[0002] Control valves adjust fluid flow by changing the flow channel cross-section, including manual control valves and automatic control valves. Automatic control valves automatically adjust the valve opening according to the control signal in the automation system, thereby achieving the regulation of fluid flow, pressure and liquid level. Automatic control valves include valve body and actuator system, and also need to be equipped with monitoring devices such as temperature sensors. They have complex structure and large size, and are not suitable for small equipment. Manual control valves require manual adjustment, and have disadvantages such as untimely adjustment and low accuracy.

[0003] Summary of the Invention

[0004] The object of the present invention is to provide a temperature control regulating valve and its application to overcome the deficiencies in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present application discloses a temperature-controlled regulating valve, comprising a mounting seat and a valve plate arranged on the end face of the mounting seat, wherein a valve hole is arranged in the mounting seat and passes through the mounting seat, and an end of the valve plate close to the valve hole slides relative to the valve hole as the temperature changes.

[0007] Furthermore, in the above-mentioned temperature control valve, the valve plate includes a mounting plate, a sliding plate, and a first connecting member and a second connecting member respectively connected between the mounting plate and the sliding plate, the mounting plate is fixed to the end face of the mounting seat, and the thermal expansion and contraction coefficient of the first connecting member is greater than or less than the thermal expansion and contraction coefficient of the second connecting member.

[0008] Furthermore, in the above-mentioned temperature control valve, a valve plate hole corresponding to the valve hole is provided in the valve plate.

[0009] Furthermore, in the above-mentioned temperature control valve, the valve plate is made of a temperature-sensitive material that expands and contracts with temperature, and one end thereof facing away from the valve hole is fixed to the mounting seat.

[0010] Furthermore, in the above-mentioned temperature control valve, the end surface of the mounting seat is provided with a groove corresponding to the valve plate, and the valve hole is connected to the groove.

[0011] Furthermore, in the above-mentioned temperature control valve, the valve disc is hinged to the end surface of the mounting seat, and one end thereof facing away from the valve hole is connected to a driving device for driving the valve disc to swing.

[0012] Furthermore, in the above-mentioned temperature control valve, the driving device is a driving plate made of a temperature-sensitive thermal expansion and contraction material, and both ends of the driving plate are hinged to the valve plate and the mounting seat respectively.

[0013] Furthermore, in the above-mentioned temperature control valve, the valve plate is a rolled structure, and one end thereof is fixed to the mounting seat.

[0014] The present application discloses a piston, comprising a piston body. One end of the piston body is provided with the temperature control regulating valve as described above, and a flow channel connected to the valve hole is provided in the piston body.

[0015] The present application discloses a door closer comprising the piston as described above.

[0016] Compared with the existing technology, the temperature control valve has a simple structure. As the temperature changes, the valve plate deforms and its relative position with the valve hole gradually changes, gradually blocking the valve hole or the valve plate hole gradually coincides with the valve hole, that is, the cross-sectional area allowed for fluid to pass gradually changes, and the fluid flow rate is automatically adjusted as the temperature changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] FIG1 is a schematic structural diagram of a temperature control valve according to a first embodiment of the present invention.

[0019] FIG2 shows a state diagram of the temperature control valve after the valve plate is deformed according to a first specific embodiment of the present invention.

[0020] FIG3 shows a state diagram of the temperature control valve after the valve plate blocks the valve hole according to a specific embodiment of the present invention.

[0021] FIG4 is a schematic structural diagram of a temperature control valve according to a second specific embodiment of the present invention.

[0022] FIG5 is a state diagram of a temperature control valve with a deformed valve plate according to a second specific embodiment of the present invention.

[0023] FIG6 is a state diagram of the temperature control valve when the valve plate hole and the valve hole coincide with each other according to the second specific embodiment of the present invention.

[0024] FIG7 is a schematic structural diagram of a temperature control valve according to a third specific embodiment of the present invention.

[0025] FIG8 is a cross-sectional view of a temperature control valve according to a third specific embodiment of the present invention.

[0026] FIG9 is a state diagram of the temperature control valve with a deformed valve plate according to the third specific embodiment of the present invention.

[0027] FIG10 is a state diagram of the temperature control valve when the valve plate hole and the valve hole coincide with each other according to the third specific embodiment of the present invention.

[0028] FIG11 is a cross-sectional view of a temperature control valve according to a fourth specific embodiment of the present invention.

[0029] FIG12 is a state diagram of the temperature control valve with a deformed valve plate according to the fourth specific embodiment of the present invention.

[0030] FIG13 is a state diagram of the temperature control valve when the valve plate hole and the valve hole coincide with each other according to the fourth specific embodiment of the present invention.

[0031] FIG14 is a cross-sectional view of a temperature control valve according to a fifth specific embodiment of the present invention.

[0032] FIG15 is a state diagram of the temperature control valve with a deformed valve plate according to the fifth specific embodiment of the present invention.

[0033] FIG16 is a state diagram of the temperature control valve when the valve plate hole and the valve hole coincide with each other according to the fifth specific embodiment of the present invention.

[0034] FIG17 is a cross-sectional view of a temperature control valve according to a sixth specific embodiment of the present invention.

[0035] FIG18 is a state diagram of the temperature control valve with a deformed valve plate according to a sixth specific embodiment of the present invention.

[0036] FIG19 shows a state diagram of the temperature control valve when the valve plate hole and the valve hole coincide with each other according to the sixth specific embodiment of the present invention.

[0037] FIG20 is a schematic structural diagram of a piston according to a seventh specific embodiment of the present invention. DETAILED DESCRIPTION

[0038] The following is a detailed description of the technical solutions in the embodiments of the present invention, with reference to the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] As shown in Figures 1 to 20, a temperature control valve includes a mounting seat 1 and a valve plate 2 arranged on the end face of the mounting seat 1. A valve hole 11 is provided in the mounting seat 1, and the valve hole 11 passes through the mounting seat 1. The end of the valve plate 2 close to the valve hole 11 slides relative to the valve hole 11 as the temperature changes.

[0042] In this technical solution, there is no requirement for the shape of the valve hole, as long as it can allow fluid to pass through. As the temperature changes, the cross-sectional area of ​​the fluid allowed to pass through also changes. As the temperature changes, the flow rate of the fluid is automatically adjusted with the temperature change; the valve plate is set on one end face of the mounting seat. When the hydraulic oil or other fluid flows from the side where the valve plate is located to the temperature control valve, the valve plate fits against the surface of the mounting seat, the fluid is blocked by the valve plate or the flow rate changes with the change of the valve plate deformation. When the fluid reverses, that is, when it flows from the side away from the valve plate to the temperature control valve, the fluid flows along the valve hole to the valve plate and impacts the valve plate, causing the valve plate to tilt and is not directly regulated by the valve plate, forming a one-way flow control valve; valve plates are respectively set at both ends of the valve hole, and the two valve plates slide in the same direction or opposite direction. The valve plate that the fluid passes through first adjusts the flow rate, and the valve plate that passes through later is impacted and tilted, which does not affect the flow rate. The fluid reverses and the functions of the two valve plates are exchanged, and the flow rate is also adjusted with temperature changes.

[0043] Example 1

[0044] For example, referring to Figures 1 to 3, the valve plate 2 includes a mounting plate 21, a sliding plate 22, and a first connecting member 23 and a second connecting member 24 respectively connected between the mounting plate 21 and the sliding plate 22. The mounting plate 21 is fixed to the end face of the mounting seat 1, and the thermal expansion and contraction coefficient of the first connecting member 23 is greater than or less than the thermal expansion and contraction coefficient of the second connecting member 24.

[0045] In this technical solution, the mounting plate is fixed to the end surface of the mounting seat by a process such as riveting. When the temperature changes, the first and second connecting members have different coefficients of thermal expansion and contraction, resulting in different deformations of the first and second connecting members, thereby causing the first and second connecting members to bend, and driving the sliding plate to swing. During the swinging process, the sliding plate gradually blocks the valve hole. The first and second connecting members are conventional structures such as sheet or wire, and can achieve overall bending and other deformations during temperature changes. In the initial state, the valve plate blocks the valve hole. After the temperature changes, the valve plate gradually moves away from the valve hole. In the initial state, the valve plate and the valve hole are staggered. After the temperature changes, the valve plate gradually moves closer to the valve hole until it completely blocks the valve hole. The swinging direction of the sliding plate is determined by the position and thermal expansion and contraction coefficients of the first and second connecting members. The first connecting member is arranged to the left of the second connecting member, and the thermal expansion and contraction coefficient of the first connecting member is smaller than that of the second connecting member. When the temperature decreases, the second connecting member contracts more than the first connecting member, and the sliding plate swings toward the side where the second connecting member is located.

[0046] Example 2

[0047] For example, referring to FIG. 4 to FIG. 6 , different from the first embodiment, a valve hole corresponding to the valve hole is provided in the sliding plate 22 , and the area of ​​the overlapping portion between the valve hole and the valve hole 11 changes as the sliding plate slides.

[0048] In this technical solution, the mounting plate is fixed to the end surface of the mounting seat by a process such as riveting. When the temperature changes, the first connecting member and the second connecting member have different thermal expansion and contraction coefficients, resulting in different deformation amounts of the first connecting member and the second connecting member, thereby causing the first connecting member and the second connecting member to bend and drive the sliding plate to swing. During the swinging of the sliding plate, the valve plate hole moves relative to the valve hole. The first connecting member and the second connecting member are conventional structures such as sheet or line, which can achieve overall bending and other deformation during temperature changes. In the initial state, the valve plate hole and the valve hole coincide with each other. After the temperature changes, the valve plate hole gradually moves away from the valve hole. In the initial state, the valve plate hole and the valve hole are staggered. After the temperature changes, the valve plate hole gradually moves closer to the valve hole. The swinging direction of the sliding plate is determined by the positions and thermal expansion and contraction coefficients of the first connecting member and the second connecting member. The first connecting member is arranged to the left of the second connecting member, and the thermal expansion and contraction coefficient of the first connecting member is smaller than that of the second connecting member. When the temperature decreases, the contraction of the second connecting member is greater than that of the first connecting member, causing the sliding plate to swing to the right.

[0049] Exemplarily, referring to FIG. 1 to FIG. 6 , the mounting piece 21 and the sliding piece 22 are integrally formed with the first connecting member 23 or the second connecting member 24 .

[0050] In this technical solution, the mounting plate and the sliding plate are integrally formed with the first connecting member by a process such as stamping, and then the two ends of the second connecting member are fixed to the corresponding positions of the mounting plate and the sliding plate respectively by conventional welding or calendering processes; the mounting plate and the sliding plate can also be integrally formed with the second connecting member, and the first connecting member is fixed by welding or calendering processes; a rivet hole is provided in the mounting plate, and is hinged to the mounting seat by conventional rivets, etc.; the mounting plate, the sliding plate, the first connecting member and the second connecting member can also be processed and formed separately, and fixed to each other by conventional processes such as welding or calendering.

[0051] Example 3

[0052] Exemplarily, referring to FIG. 7 to FIG. 10 , the valve disc 2 is made of a temperature-sensitive material that expands and contracts with heat and contracts with cold, and one end thereof facing away from the valve hole is fixed to the mounting seat 1 .

[0053] In this technical solution, the valve plate is made of conventional high-expansion alloys or nylon and other high-expansion materials. As the temperature changes, the valve plate extends or shortens, the relative position of the valve plate hole and the valve hole gradually changes, or the area of ​​the valve plate blocking the valve hole gradually changes, that is, the cross-sectional area allowed for fluid to pass gradually changes, and the fluid flow rate is automatically adjusted as the temperature changes.

[0054] Exemplarily, referring to FIG. 4 to FIG. 7 , the end surface of the mounting seat 1 is provided with a groove corresponding to the valve plate 2 , and the valve hole 11 is connected to the groove.

[0055] In this technical solution, a waist-shaped groove is provided on the end face of the mounting seat. One end close to its outer edge is connected to the valve plate by riveting screws, and the other end is connected to the valve hole. The deformation direction of the valve plate is limited by the groove so that it can expand and contract as much as possible along the length direction of the groove.

[0056] Example 4

[0057] For example, referring to FIG. 11 to FIG. 13 , the valve disc 2 is hinged to the end surface of the mounting seat 1 , and one end thereof facing away from the valve hole 11 is connected to a driving device 3 for driving the valve disc 2 to swing.

[0058] In this technical solution, the valve disc and the mounting seat are both made of low-expansion materials, and the driving device is made of high-expansion materials that are highly sensitive to temperature. When the temperature changes, the driving device drives the valve disc to swing, changing the overlapping area of ​​the valve disc hole and the valve hole or changing the area of ​​the valve disc blocking the valve hole, that is, the cross-sectional area allowed for the fluid to pass gradually changes, and the fluid flow rate is automatically adjusted with temperature changes.

[0059] Exemplarily, referring to FIG8 to FIG10 , the driving device is a driving plate made of a temperature-sensitive thermal expansion and contraction material, and both ends of the driving plate are hinged to the valve plate 2 and the mounting seat 1 respectively.

[0060] In this technical solution, the drive plate is made of conventional high-expansion alloys or nylon and other high-expansion materials. As the temperature changes, the drive plate extends or shortens, and drives the valve plate to swing, changing the overlapping area of ​​the valve plate hole and the valve hole or changing the area of ​​the valve plate blocking the valve hole, that is, the cross-sectional area allowed for the fluid to pass gradually changes, and the fluid flow rate is automatically adjusted as the temperature changes.

[0061] Example 5

[0062] For example, referring to Figures 14 to 16, the valve plate 2 is an elastic roll, including an inner layer connecting part 25 and an outer layer connecting part 26 with different thermal expansion and contraction coefficients. The inner ring end of the valve plate is arranged close to the valve hole 11, and the outer ring end is fixed to the mounting seat.

[0063] In this technical solution, the elastic coil is made of an inner metal sheet and an outer metal sheet with different thermal expansion and contraction coefficients, and the two ends of the outer metal sheet protrude from the two ends of the inner metal sheet respectively to form a mounting boss and a sliding boss. The mounting boss and the sliding boss can also be set independently and fixedly connected by conventional riveting and other processes. The mounting boss at the end of the outer ring of the outer metal sheet is fixed to the end face of the mounting seat, and the sliding boss at the end of the inner ring of the outer metal sheet is set close to the valve hole. When the temperature changes, due to the different thermal expansion and contraction coefficients of the inner and outer metal sheets, the metal sheet and the outer metal sheet are The deformation of the metal sheet is different, causing the elastic coil to shrink or loosen, changing the overlapping area of ​​the valve plate hole and the valve hole or changing the area of ​​the sliding boss blocking the valve hole, that is, the cross-sectional area allowed for the fluid to pass through gradually changes, and the fluid flow rate is automatically adjusted with temperature changes; the valve plate can also be made of a single temperature-sensitive thermal expansion and contraction material. During the temperature change process, its deformation is smaller than that of the double-layer material, that is, the accuracy of flow regulation is higher, and it can be used in occasions with high-precision requirements such as experimental equipment; the valve plate can also be made of three or more layers of materials with different thermal expansion and contraction coefficients.

[0064] Example 6

[0065] Referring to Figures 17 to 19, unlike the fourth embodiment, the driving device is an elastic coil, and is connected to one end of the valve plate through a conventional connecting rod and other structures. During the contraction or relaxation of the elastic coil, the valve plate is driven by the connecting rod to swing around the riveted point between it and the mounting seat, thereby changing the overlapping area of ​​the valve plate hole and the valve hole or changing the area of ​​the sliding boss blocking the valve hole, that is, the cross-sectional area allowed for the fluid to pass through gradually changes, and the flow rate of the fluid is automatically adjusted as the temperature changes.

[0066] Example 7

[0067] For example, referring to FIG20 , a piston includes a piston body 4, one end of which is connected to a temperature control valve as described above by means of threaded connection, bolt connection, welding, etc., and a flow channel connected to the valve hole 11 is provided therein; the temperature control valve is fixed to one end away from the spring by means of bolts, etc., and the contact surface between the temperature control valve and the piston body is sealed by conventional techniques such as a step structure or a sealing ring to prevent hydraulic oil from leaking from the connection between the temperature control valve and the piston body. The mounting seat of the temperature control valve can also be an integrated structure with the piston body; when the door is opened, the piston body squeezes the spring, the space on the side where the spring is located becomes smaller, and the hydraulic oil flows to the side away from the spring. , and stamp the valve disc to make it elastically deformed to ensure smooth flow of hydraulic oil; when closing the door, the spring releases its elastic potential energy, pushing the piston to reset, and the hydraulic oil flows to the side where the spring is located, squeezing the valve disc and fitting it to the end face of the mounting seat, thereby blocking the valve hole and forming a one-way flow channel, and the hydraulic oil flows back along the return oil channel of the door closer; as the external ambient temperature decreases, the viscosity of the hydraulic oil gradually increases, the valve disc deforms, and drives the valve disc hole to move relative to the valve hole, and the valve disc hole and the valve hole gradually overlap, that is, the cross-sectional area allowed for the fluid to pass gradually changes, and the flow rate of the fluid is automatically adjusted with temperature changes to compensate for the flow rate of the return oil channel that decreases due to the increase in hydraulic oil viscosity, thereby ensuring the closing speed.

[0068] Example 8

[0069] A door closer includes the piston as described above. The door closer using the piston can ensure the closing speed even when encountering extremely low temperature weather or used in low-temperature areas in the north, while not affecting the use at normal temperature and requiring no manual adjustment.

[0070] To sum up, the temperature control valve has a simple structure. As the temperature changes, the valve plate deforms and its relative position with the valve hole gradually changes, gradually blocking the valve hole or the valve plate hole gradually coincides with the valve hole, that is, the cross-sectional area allowed for the fluid to pass through gradually changes, and the fluid flow rate is automatically adjusted as the temperature changes. The door closer using this piston can ensure the closing speed even when encountering extremely low temperature weather or used in low temperature areas in the north, without affecting the use at normal temperature and without the need for manual adjustment.

[0071] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0072] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A temperature control valve, characterized in that: The utility model comprises a mounting seat and a valve plate arranged on the end surface of the mounting seat, wherein a valve hole is arranged in the mounting seat and passes through the mounting seat, and an end of the valve plate close to the valve hole is slidably arranged relative to the valve hole as the temperature changes.

2. The temperature control valve according to claim 1, characterized in that: The valve plate includes a mounting plate, a sliding plate, and a first connecting member and a second connecting member respectively connected between the mounting plate and the sliding plate. The mounting plate is fixed to the end surface of the mounting seat, and the thermal expansion and contraction coefficient of the first connecting member is greater than or less than the thermal expansion and contraction coefficient of the second connecting member.

3. The temperature control valve according to claim 1, characterized in that: A valve plate hole corresponding to the valve hole is arranged in the valve plate.

4. The temperature control valve according to claim 1, characterized in that: The valve plate is made of a temperature-sensitive material that expands and contracts with heat and contracts with cold, and one end of the valve plate that faces away from the valve hole is fixed to a mounting seat.

5. The temperature control valve according to claim 4, characterized in that: The end surface of the mounting seat is provided with a groove corresponding to the valve plate, and the valve hole is connected to the groove.

6. The temperature control valve according to claim 1, characterized in that: The valve plate is hinged to the end surface of the mounting seat, and one end of the valve plate that is away from the valve hole is connected to a driving device for driving the valve plate to swing.

7. The temperature control valve according to claim 6, characterized in that: The driving device is a driving plate made of a temperature-sensitive thermal expansion and contraction material, and the two ends of the driving plate are respectively hinged to the valve plate and the mounting seat.

8. The temperature control valve according to claim 1, characterized in that: The valve sheet is a rolled structure, and one end of the valve sheet is fixed to a mounting seat.

9. A piston, characterized in that: It comprises a piston body, one end of which is provided with a temperature control regulating valve as described in any one of claims 1 to 8, and a flow channel connected to the valve hole is provided therein.

10. A door closer, characterized in that: Comprising a piston as claimed in claim 9 above.

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