An adjustable automatic valve

Abstract

The present invention discloses an adjustable automatic valve, including a columnar valve body, a cavity formed in the valve body, an axially arranged optical axis arranged in the valve body, the optical axis arranged in the valve body through a bracket, the optical axis is fixedly connected to the bracket, the bracket is movably connected to the valve body, and the bracket can drive the optical axis to move along the axial direction of the valve body; a valve head is passed through the optical axis, and a memory metal spring is also sleeved on the optical axis between the valve head and the bracket; a boss is also provided on the inner wall of the valve body, and the boss is located on the side of the valve head away from the memory metal spring. The present invention is installed after the water enters the heating pipeline of each user, and can automatically adjust the flow rate of the water entering according to the real-time temperature of the water entering; in addition, the staff can manually increase or decrease the adjustment range according to the actual situation, so as to more intelligently adjust the water entering the heating system of each household according to the actual situation, greatly reducing the loss of the thermal power group caused by excessive heating.

Description

Technical Field

[0001] The invention relates to the technical field of heat control, and in particular to an adjustable automatic valve. Background Art

[0002] The existing centralized heating is that the heating group transmits municipal heat to users' homes through pipelines. The medium is generally water, which is a clean and guaranteed heating method. This method is cheap and has relatively high safety performance. In the actual heat transmission process, due to various restrictions (such as the distance, the height of the floor, etc.), different users have different requirements for the temperature of the heat to the home (in actual applications, it is generally controlled by the household water inlet temperature and flow). The existing flow control is mostly manually set by the staff of the heating group according to the area. However, since its setting range is generally divided according to the area and has a certain lag, it cannot be adjusted in real time according to the actual situation of each user, resulting in unreasonable heat distribution, waste of resources and great losses to the heating group. Summary of the invention

[0003] In order to solve the above-mentioned shortcomings of the prior art, the present invention provides an adjustable automatic valve, and the specific scheme is as follows:

[0004] It comprises a columnar valve body, a cavity is formed in the valve body, an axially arranged optical axis is provided in the valve body, the optical axis is arranged in the valve body through a bracket, the optical axis is fixedly connected to the bracket, the bracket is movably connected to the valve body, and the bracket can drive the optical axis to move along the axial direction of the valve body;

[0005] A valve head is passed through the optical axis, and a memory metal spring is sleeved on the optical axis between the valve head and the bracket; a boss is also provided on the inner wall of the valve body, and the boss is located on the side of the valve head away from the memory metal spring.

[0006] Furthermore, the cavity in the valve body is divided into an adjusting section and a fixed section, the diameter of the adjusting section is larger than the diameter of the valve head, the diameter of the fixed section is smaller than the diameter of the valve head, and the end of the fixed section opposite to the adjusting section constitutes the boss.

[0007] Furthermore, the end surface of the valve head away from the memory metal spring is formed into a cone shape, and the end of the fixed section facing the adjustment section is formed into a structure that matches the conical end surface of the valve head.

[0008] Furthermore, the end surface of the valve head facing the memory metal spring is also formed into a cone shape.

[0009] Further, the bracket includes a connecting rod for connecting the optical axis, the connecting rod is arranged along the radial direction of the valve body, and the length of the connecting rod is greater than the diameter of the valve head and smaller than the diameter of the adjustment section;

[0010] The end of the connecting rod is connected to an adjusting rod, and the adjusting rod is arranged along the axial direction of the valve body; an adjusting hole cooperating with the adjusting rod is opened on the end surface of the fixed section opposite to the adjusting section, and the adjusting hole is arranged along the axial direction of the valve body; the length of the adjusting rod is greater than the depth of the adjusting hole and less than the length of the adjusting section.

[0011] Furthermore, an adjusting component for controlling the movement of the adjusting rod along the adjusting hole is provided in the adjusting hole, an observation window corresponding to the adjusting component is provided on the outer wall of the valve body, and a keyhole corresponding to the adjusting component is provided on the end surface of the fixed section away from the adjusting section.

[0012] Further, the adjustment assembly comprises a first sleeve arranged in the adjustment hole, the outer wall of the first sleeve is provided with a plurality of axially arranged slots, and the inner wall of the adjustment hole is provided with a plurality of protrusions corresponding to the slots;

[0013] A second sleeve is coaxially arranged inside the first sleeve, and a matching first thread is formed on the inner wall of the first sleeve and the outer wall of the second sleeve; the length of the second sleeve is greater than the length of the first sleeve, and one end of the second sleeve corresponding to the keyhole is connected to the adjustment hole through a bearing;

[0014] The adjusting rod is coaxially arranged in the second sleeve, and the inner wall of the second sleeve and the outer wall of the adjusting rod are formed with matching second threads, and the first threads and the second threads have the same direction.

[0015] Furthermore, a mark is provided on the outer wall of the first sleeve, and a scale is provided on the observation window.

[0016] Furthermore, it also includes a manual key, which includes a key head that can be inserted into the keyhole; the inner ring of the bearing is fixedly connected to the second sleeve, the outer ring of the bearing is fixedly connected to the adjustment hole, and the end of the second sleeve is formed into a structure that cooperates with the key head.

[0017] Furthermore, the length of the optical axis is less than or equal to the length of the adjustment section, and a stop protrusion is provided at the other end of the optical axis relative to the end connected to the bracket.

[0018] The beneficial effects of the present invention are:

[0019] The present invention proposes an adjustable automatic valve, which is installed after the water enters the heating pipeline of each user, and can automatically adjust the flow rate of the incoming water according to the real-time temperature of the incoming water. In addition, the staff can manually increase or decrease the adjustment range according to the actual situation, so as to more intelligently adjust the water inlet situation of each household's heating system according to the actual situation, greatly reducing the losses caused by excessive heating of the thermal power group. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the internal structure of the present invention,

[0021] Figure 2 Schematic diagram of the internal structure of the valve body of the present invention,

[0022] Figure 3 is a schematic diagram of the structure of the support of the present invention,

[0023] Figure 4 This is an enlarged view of the structure of the adjustment component of the present invention.

[0024] Figure 5 This is a schematic diagram of the normal working state of the present invention.

[0025] Figure 6 This is a schematic diagram of the manual closing state of the present invention.

[0026] Figure 7 It is a schematic diagram of the non-closing state of the present invention.

[0027] Serial numbers and names of the accompanying drawings: 1. Valve body, 11. Adjusting section, 12. Fixed section, 13. Observation window, 14. Keyhole, 2. Optical axis, 21. Stop cam, 3. Bracket, 31. Connecting rod, 32. Adjusting rod, 4. Valve head, 5. Memory metal spring, 6. Boss, 7. Adjusting hole, 8. Adjusting assembly, 81. First sleeve, 82. Second sleeve, 83. Bearing. DETAILED DESCRIPTION

[0028] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following embodiments are given by way of example and detailed description with reference to the accompanying drawings.

[0029] Combination Figure 1 and Figure 2 The present invention discloses an adjustable automatic valve, comprising a columnar valve body 1, a cavity formed in the valve body 1, an axially arranged optical axis 2 in the valve body 1, the optical axis 2 is arranged in the valve body 1 through a bracket 3, the optical axis 2 is fixedly connected to the bracket 3, the bracket 3 is movably connected to the valve body 1, and the bracket 3 can drive the optical axis 2 to move along the axial direction of the valve body 1;

[0030] A valve head 4 is passed through the optical axis 2 , and a memory metal spring 5 is sleeved between the valve head 4 and the bracket 3 on the optical axis 2 ; a boss 6 is also provided on the inner wall of the valve body 1 , and the boss 6 is located on the side of the valve head 4 away from the memory metal spring 5 .

[0031] The cavity in the valve body 1 is divided into an adjustment section 11 and a fixed section 12. The diameter of the adjustment section 11 is larger than the diameter of the valve head 4, and the diameter of the fixed section 12 is smaller than the diameter of the valve head 4. The end of the fixed section 12 facing the adjustment section 11 constitutes a boss 6. The end face of the valve head 4 away from the memory metal spring 5 is formed into a cone shape, and the end of the fixed section 12 facing the adjustment section 11 is formed into a structure that matches the conical end face of the valve head 4. The length of the optical axis 2 is less than or equal to the length of the adjustment section 11. The other end of the optical axis 2 relative to the end connected to the bracket 3 is provided with a stop convex 21 to prevent the valve head from falling off the optical axis.

[0032] like Figure 1 During heating, water enters the valve body through the water inlet on the left, then flows through the gap between the outer edge of the valve head and the valve body, and finally flows out of the valve body through the water outlet on the right; as the valve head moves to the right, the distance L between the cone surface on the right side of the valve head and the boss gradually decreases, that is, the flow rate in the water outlet direction will also gradually decrease.

[0033] The end face of the valve head 4 facing the memory metal spring 5 is also formed into a cone shape. On the one hand, it reduces the resistance of the valve head to hot water in the water inlet direction to ensure the flow rate of the water inlet, and on the other hand, it reduces the axial force of the water inlet on the valve head to ensure the accuracy of the memory metal spring when working.

[0034] like Figure 3 The bracket 3 includes a connecting rod 31 for connecting the optical axis 2, the connecting rod 31 is arranged along the radial direction of the valve body 1, and the length of the connecting rod 31 is greater than the diameter of the valve head 4 and smaller than the diameter of the adjusting section 11; the end of the connecting rod 31 is connected with an adjusting rod 32, and the adjusting rod 32 is arranged along the axial direction of the valve body 1; an adjusting hole 7 cooperating with the adjusting rod 32 is opened on the end surface of the fixed section 12 facing the adjusting section 11, and the adjusting hole 7 is arranged along the axial direction of the valve body 1; the length of the adjusting rod 32 is greater than the depth of the adjusting hole 7 and smaller than the length of the adjusting section 11.

[0035] An adjusting assembly 8 for controlling the movement of the adjusting rod 32 along the adjusting hole 7 is provided in the adjusting hole 7, an observation window 13 corresponding to the adjusting assembly 8 is provided on the outer wall of the valve body 1, and a keyhole 14 corresponding to the adjusting assembly 8 is provided on the end surface of the fixed section 12 away from the adjusting section 11.

[0036] The adjusting assembly 8 includes a first sleeve 81 arranged in the adjusting hole 7, the outer wall of the first sleeve 81 is provided with a plurality of axially arranged slots, and the inner wall of the adjusting hole 7 is provided with a plurality of latching protrusions corresponding to the slots; a second sleeve 82 is coaxially arranged in the first sleeve 81, and the inner wall of the first sleeve 81 and the outer wall of the second sleeve 82 are formed with matching first threads; the length of the second sleeve 82 is greater than the length of the first sleeve 81, and one end of the second sleeve 82 corresponding to the keyhole 14 is connected to the adjusting hole 7 through a bearing 83; the adjusting rod 32 is coaxially arranged in the second sleeve 82, and the inner wall of the second sleeve 82 and the outer wall of the adjusting rod 32 are formed with matching second threads, and the directions of the first thread and the second thread are the same.

[0037] Marks are provided on the outer wall of the first sleeve 81 , and scales are provided on the observation window 13 .

[0038] It also includes a manual key, which includes a key head that can be inserted from the keyhole 14; the inner ring of the bearing 83 is fixedly connected to the second sleeve 82, the outer ring of the bearing 83 is fixedly connected to the adjustment hole 7, and the end of the second sleeve 82 is formed into a structure that cooperates with the key head.

[0039] Combination Figure 1 and Figure 4 The above structure enables that when the manual key is inserted into the keyhole and matched with the second sleeve, the second sleeve can be rotated and the first thread and the second thread can simultaneously move the adjusting rod and the first sleeve to the left or right along the adjusting hole. The marks on the outer wall of the first sleeve and the scale on the observation window make it convenient for relevant personnel to intuitively understand the position of the bracket in the valve body outside the valve body.

[0040] Theoretically, when the pitch of the first thread and the second thread is the same, the first sleeve and the adjusting rod move synchronously. At this time, the length of the observation window needs to be set to be equal to the depth of the adjusting hole, which is not conducive to ensuring the sealing of the valve body; therefore, in practical applications, the lead of the first thread is greater than the lead of the second thread (for example, the lead of the first thread is 10 times the lead of the second thread, when the adjusting rod moves 10mm to the left, the first sleeve moves 1mm to the left), which can effectively reduce the size of the observation window.

[0041] The present invention is installed at the water inlet of the user's heating pipeline (located downstream of the return valve). Taking the inlet water temperature of 20°C-40°C as an example, the working principle of the present invention is as follows:

[0042] During normal heating, the working state of the present invention is as follows Figure 1 As shown in the figure, when the water inlet temperature is 20℃ or lower, the memory metal spring is in the shortest state, and the valve head is at the leftmost end of the current working state. At this time, the water flow of the valve body is the largest, and the user's heating pipeline supplies hot water normally;

[0043] As the water temperature in the user's heating pipeline rises, the temperature of the user's water inlet will gradually increase after returning the water. When the water inlet temperature is between 20℃-40℃, the memory metal will gradually lengthen, thereby pushing the valve head to the right. At this time, the water flow of the valve body will gradually decrease, minimizing the water supply while ensuring normal heating for the user;

[0044] When the temperature of the user's water inlet reaches 40℃ after the water returns, the memory metal spring is stretched to its longest state, that is, the cone surface on the right side of the valve head is tightly attached to the cone surface of the boss under the action of the memory metal spring (such as Figure 5 As shown), the valve body is completely closed at this time, and the water flow is zero, preventing overheating;

[0045] When the valve body is completely closed, the user's heating is provided by the hot water in the indoor heating pipeline. As time goes by, the temperature of the hot water in the user's indoor heating pipeline gradually decreases, and the inlet water temperature gradually decreases after the return water; and as the inlet water temperature decreases, the memory metal spring will gradually shorten, causing the valve head to move to the left, and then the valve body will gradually open and be in a water-passing state;

[0046] For users who do not need heating because no one is at home for a long time, Figure 6 As shown, the bracket is controlled to move rightward by the manual key until the cone surface on the right side of the valve head is tightly attached to the boss. At this time, the valve body is in the manual closed state. No matter how the water temperature at the water inlet changes, the valve body is always in the closed state.

[0047] For users at the end of the water supply network or some special users (for example, there are many elderly and children in the family who have higher requirements for heating conditions, etc.), Figure 7 As shown, the bracket is controlled to move to the left by a manual key. At this time, the valve body is in an open state. Even if the water inlet temperature reaches 40°C and the memory metal spring is in its longest state, the valve head will not contact the boss at this time, ensuring that the valve body can always pass water.

[0048] In summary, the above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification are within the scope covered by the patent of the present invention.

Claims

1. An adjustable automatic valve, comprising a cylindrical valve body (1), wherein a cavity is formed in the valve body (1), characterized in that: An axially arranged optical axis (2) is provided in the valve body (1); the optical axis (2) is arranged in the valve body (1) via a bracket (3); the optical axis (2) is fixedly connected to the bracket (3); the bracket (3) is movably connected to the valve body (1); and the bracket (3) can drive the optical axis (2) to move axially along the valve body (1); A valve head (4) is passed through the optical axis (2), and a memory metal spring (5) is sleeved on the optical axis (2) between the valve head (4) and the bracket (3); a boss (6) is also provided on the inner wall of the valve body (1), and the boss (6) is located on a side of the valve head (4) away from the memory metal spring (5); the cavity in the valve body (1) is divided into an adjusting section (11) and a fixed section (12), the diameter of the adjusting section (11) is larger than the diameter of the valve head (4), the diameter of the fixed section (12) is smaller than the diameter of the valve head (4), and the end of the fixed section (12) facing the adjusting section (11) constitutes the boss (6); the end surface of the valve head (4) away from the memory metal spring (5) is formed into a conical shape; The bracket (3) comprises a connecting rod (31) for connecting the optical axis (2), the connecting rod (31) being arranged along the radial direction of the valve body (1), and the length of the connecting rod (31) being greater than the diameter of the valve head (4) and less than the diameter of the adjusting section (11); The end of the connecting rod (31) is connected to an adjusting rod (32), and the adjusting rod (32) is arranged along the axial direction of the valve body (1); an adjusting hole (7) cooperating with the adjusting rod (32) is provided on the end surface of the fixed section (12) facing the adjusting section (11), and the adjusting hole (7) is arranged along the axial direction of the valve body (1); the length of the adjusting rod (32) is greater than the depth of the adjusting hole (7) and less than the length of the adjusting section (11); An adjusting assembly (8) for controlling the movement of the adjusting rod (32) along the adjusting hole (7) is provided in the adjusting hole (7); an observation window (13) corresponding to the adjusting assembly (8) is provided on the outer wall of the valve body (1); and a key hole (14) corresponding to the adjusting assembly (8) is provided on the end surface of the fixed section (12) away from the adjusting section (11); The adjustment assembly (8) comprises a first sleeve (81) arranged in the adjustment hole (7); the outer wall of the first sleeve (81) is provided with a plurality of axially arranged slots; the inner wall of the adjustment hole (7) is provided with a plurality of protrusions corresponding to the slots; the outer wall of the first sleeve (81) is provided with a mark; and the observation window (13) is provided with a scale; A second sleeve (82) is coaxially disposed inside the first sleeve (81); the inner wall of the first sleeve (81) and the outer wall of the second sleeve (82) are formed with matching first threads; the length of the second sleeve (82) is greater than the length of the first sleeve (81); one end of the second sleeve (82) corresponding to the keyhole (14) is connected to the adjusting hole (7) via a bearing (83); The adjusting rod (32) is coaxially arranged in the second sleeve (82), the inner wall of the second sleeve (82) and the outer wall of the adjusting rod (32) are formed with matching second threads, and the first threads and the second threads have the same direction; During heating, water enters the valve body through the water inlet on the left, then flows through the gap between the outer edge of the valve head and the valve body, and finally flows out of the valve body through the water outlet on the right; as the valve head moves to the right, the distance between the cone surface on the right side of the valve head and the boss gradually decreases, and the flow rate in the water outlet direction will also gradually decrease.

2. An adjustable automatic valve according to claim 1, characterized in that: The end portion of the fixed section (12) facing the adjusting section (11) is formed into a structure that matches the conical end surface of the valve head (4).

3. An adjustable automatic valve according to claim 2, characterized in that: The end surface of the valve head (4) facing the memory metal spring (5) is also formed into a conical shape.

4. An adjustable automatic valve according to claim 3, characterized in that: It also includes a manual key, the manual key including a key head that can be inserted from the key hole (14); the inner ring of the bearing (83) is fixedly connected to the second sleeve (82), the outer ring of the bearing (83) is fixedly connected to the adjustment hole (7), and the end of the second sleeve (82) is formed into a structure that matches the key head.

5. The adjustable automatic valve according to claim 2, characterized in that: The length of the optical axis (2) is less than or equal to the length of the adjustment section (11), and a stop protrusion (21) is provided at the other end of the optical axis (2) relative to the end connected to the bracket (3).

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