Constant flow balance valve

Abstract

The utility model discloses a constant flow balance valve, and particularly relates to the technical field of balance valves, the constant flow balance valve mainly comprises a valve casing, the inner wall of the valve casing is fixedly connected with a supporting ring, the inner wall of the supporting ring is slidably provided with a sealing gasket sleeve, and the inner wall of the sealing gasket sleeve is provided with a sliding sealing assembly; the sliding sealing assembly comprises a rubber pad installed on the inner wall of the sealing gasket sleeve, the inner wall of the rubber pad is fixedly connected with a sleeve, and a limiting linkage ring is fixedly installed at one end of the sleeve. A sliding ring is fixedly connected to the outer wall of the limiting linkage ring, the outer wall of the sliding ring is in sliding connection with the valve shell, and a plurality of liquid inlet holes are formed in the outer wall of the limiting linkage ring in an embedded mode. The sliding sealing assembly is adopted, a water body extrudes the sliding ring, the sliding ring carries the limiting linkage ring to move rightwards, the sealing sliding ring drives the reinforcing ring to move rightwards, and the limiting linkage ring drives the sleeve to move rightwards at the same time, so that the compression spring is prevented from being soaked in the water body and prevented from being rusted and damaged, and the durability of the compression spring is improved; the durability of the constant flow balance valve can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of balancing valves, and more specifically, to a constant flow balancing valve. Background Art

[0002] In the HVAC system of modern buildings, fan coil units and floor heating systems are important components for achieving indoor temperature regulation. However, traditional hydraulic balancing technology has significant defects, resulting in low system efficiency, increased energy consumption, and poor user comfort. Therefore, a constant flow balancing valve is needed.

[0003] In the existing public documents, the patent with patent announcement number CN207500568U discloses a balancing valve, which is provided with a fastening nut and a set screw to adjust the pressure of the spring between the pressure plate and the limit table, so as to achieve an adjustable pressure value for opening the balancing valve hole, thereby improving the versatility and operational flexibility of the balancing valve; a protective cap for protecting the set screw is provided at the upper end of the valve body, which can directly prevent the set screw from being affected by external forces, thereby ensuring that the safety valve can achieve its function and improving the service life of the balancing valve; however, the balancing valve still has the following defects;

[0004] During the use of the balancing valve, although it can achieve balanced quantitative water flow through spring buffering under different water pressure conditions, during the process of balancing the water flow, the water body continues to contact the spring. The spring is immersed in the water body for a long time, which will cause the spring to rust and damage, and the durability of the constant flow balancing valve is poor. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a constant flow balancing valve.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a constant flow balancing valve, comprising a valve housing, the inner wall of the valve housing is fixedly connected with a support ring, the inner wall of the support ring is slidably installed with a sealing gasket sleeve, and the inner wall of the sealing gasket sleeve is installed with a sliding sealing assembly; the sliding sealing assembly comprises a rubber pad installed on the inner wall of the sealing gasket sleeve, and the inner wall of the rubber pad is fixedly connected with a sleeve, and one end of the sleeve is fixedly installed with a limiting linkage ring; the outer wall of the limiting linkage ring is fixedly connected with a slip ring, and the outer wall of the slip ring is slidably connected to the valve housing, and the outer wall of the limiting linkage ring is embedded with a plurality of liquid inlet holes; a sealing slip ring is bonded to one side of the slip ring, and a reinforcement ring and a sealing gasket ring are sequentially arranged on one side of the sealing slip ring from the inside to the outside, and the reinforcement ring and the sealing gasket ring are both fixedly connected to the sealing slip ring.

[0007] Preferably, one end of the rubber pad and the sealing gasket sleeve are fixedly connected to the limit linkage ring, and the rubber pad and the sleeve are both made of rubber material, the multiple liquid inlet holes are arranged in a circular ring with equal distances, and the reinforcement ring and the sealing gasket ring are fixedly connected to the sealing slip ring, the outer wall of the sealing gasket ring is slidingly connected to the valve housing, the outer wall of the valve housing is provided with a threaded groove, and the valve housing is made of stainless steel; the outer wall of the sealing gasket sleeve is slidingly connected with a compression spring at a position between the slip ring and the support ring, and the support ring and the slip ring are fixedly connected to the compression spring.

[0008] In this technical solution, after the water enters the valve housing, the slip ring carries the limit linkage ring to move right, the slip ring carries the sealing slip ring to move right, the reinforcement ring carries the sealing gasket ring to move right, the sealing gasket ring can be sealed and squeezed on the inner wall of the valve housing, the limit linkage ring drives the sleeve to move right at the same time, and the sealing gasket sleeve moves right along the inner wall of the support ring. The compression spring is compressed on the support ring, and the compression spring is sealed and squeezed between the support ring and the slip ring, as well as on the outer wall of the sealing gasket sleeve, so as to prevent the compression spring from being immersed in the water and rusting and damage on the compression spring.

[0009] Preferably, a guide sliding assembly is installed at one end of the limit linkage ring; the guide sliding assembly includes a guide block installed at one end of the limit linkage ring, and one side of the guide block is polished with a guide surface, the inner wall of the guide block is slidably connected with the guide block, and the inner wall of the limit linkage ring is slidably connected to the outer wall of the slide rod; the outer wall of the slide rod is fixedly connected with a connecting ring at a position on one side of the guide surface, a support frame is fixedly installed on one side of the outer wall of the connecting ring, and a reinforcement support ring is fixedly connected to one end of the support frame, the reinforcement support ring is fixedly connected to the valve housing, the outer wall of the guide surface is polished and ground, and the vertical cross-sectional shape of the slide rod is set to be circular, the reinforcement support ring and the support frame are both made of carbon fiber material, and the vertical cross-sectional shape of the reinforcement support ring is circular.

[0010] In this technical solution, the support ring is supported and reinforced by the valve casing, and the support frame can provide stable supporting force for the connecting ring. The sliding rod realizes guided sliding operation on the inner wall of the guide block and the inner wall of the limit linkage ring, ensuring that the limit linkage ring can be guided to move right along the outer wall of the sliding rod.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model adopts a sliding sealing assembly, the water squeezes the slip ring, the slip ring carries the limit linkage ring to move right, the slip ring carries the sealing slip ring to move right, the sealing slip ring drives the reinforcement ring to move right, the sealing gasket ring can be sealed and squeezed on the inner wall of the valve housing, and the limit linkage ring drives the sleeve to move right at the same time, so as to avoid the compression spring being immersed in the water body, avoid rust damage on the compression spring, improve the durability of the compression spring, and improve the durability of the constant flow balancing valve in the process of balancing the water flow;

[0013] 2. The utility model adopts a guide sliding component, which supports the reinforcement support ring through the valve casing, and the reinforcement support ring supports the support frame. The slide rod realizes the guiding sliding operation on the inner wall of the guide block and the inner wall of the limit linkage ring, so as to ensure that the limit linkage ring can be guided to move right along the outer wall of the slide rod, and avoid the limit linkage ring from being offset up and down or forward and backward when being impacted by the water flow, so as to stabilize the limit linkage ring and realize the stable balanced water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the constant flow balancing valve of the utility model.

[0015] Figure 2 It is a schematic diagram of the vertical cross-section structure of the constant flow balancing valve of the utility model.

[0016] Figure 3 It is a schematic diagram of the local structure of the vertical section of the connection between the support ring and the sealing gasket sleeve of the utility model.

[0017] Figure 4 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] Figure 5 It is a schematic diagram of the local structure of the vertical section of the connection between the slide rod and the limit linkage ring of the utility model.

[0019] Figure 6 It is a schematic diagram of the front structural view of the guide sliding assembly of the utility model.

[0020] The accompanying drawings are marked as follows: 1. valve housing; 2. support ring; 3. sealing gasket sleeve; 4. rubber pad; 5. sleeve; 6. limit linkage ring; 7. slip ring; 8. liquid inlet hole; 9. sealing slip ring; 10. reinforcement ring; 11. sealing gasket ring; 12. threaded groove; 13. guide surface; 14. compression spring; 15. guide block; 16. slide rod; 17. connecting ring; 18. support frame; 19. reinforcement support ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As attached Figure 1-6A constant flow balancing valve is shown, and a sliding sealing assembly is arranged on the constant flow balancing valve. The arrangement of the sliding sealing assembly can prevent the compression spring 14 from being immersed in water, prevent the compression spring 14 from being rusted and damaged, and improve the durability of the compression spring 14. In the process of balancing the water flow, the durability of the constant flow balancing valve can be improved. The specific structural arrangement of the sliding sealing assembly is as follows.

[0023] In this technical solution, as shown in the attached Figure 1-4 As shown, a sliding sealing assembly is installed on the inner wall of the reinforcement cylinder 3; the sliding sealing assembly includes a rubber pad 4 installed on the inner wall of the sealing gasket sleeve 3, and the inner wall of the rubber pad 4 is fixedly connected with a sleeve 5, and one end of the sleeve 5 is fixedly installed with a limiting linkage ring 6; the outer wall of the limiting linkage ring 6 is fixedly connected with a slip ring 7, and the outer wall of the slip ring 7 is slidingly connected to the valve housing 1, and a plurality of liquid inlet holes 8 are embedded in the outer wall of the limiting linkage ring 6; a sealing slip ring 9 is bonded to one side of the slip ring 7, and a reinforcement ring 10 and a sealing gasket ring 11 are arranged on one side of the sealing slip ring 9 in sequence from the inside to the outside, and the reinforcement ring 10 and the sealing gasket ring 11 are fixedly connected to the sealing slip ring 9. One end of the rubber pad 4 and the sealing pad sleeve 3 are fixedly connected to the limit linkage ring 6, and the rubber pad 4 and the sleeve 5 are both made of rubber material. Multiple liquid inlet holes 8 are arranged in a circular ring with equal distances, and the reinforcement ring 10 and the sealing pad ring 11 are fixedly connected to the sealing slip ring 9, and the outer wall of the sealing pad ring 11 is slidably connected to the valve housing 1.

[0024] In this technical solution, as shown in the attached Figure 1-3 As shown, a thread groove 12 is provided on the outer wall of the valve housing 1, and the valve housing 1 is made of stainless steel; a compression spring 14 is slidably connected to the outer wall of the sealing gasket sleeve 3 and located between the slip ring 7 and the support ring 2, and the support ring 2 and the slip ring 7 are fixedly connected to the compression spring 14, so that the thread groove 12 can be docked on the water outlet pipe, and the other end of the support ring 2 can be sleeved in the inside of the water inlet pipe to realize the threaded docking operation, and secondly, the slip ring 7 can squeeze the compression spring 14, and the compression spring 14 is compressed on the support ring 2, so that the compression spring 14 is stably compressed.

[0025] When the present technical solution is in use, the threaded groove 12 is docked on the water outlet pipe, and the other end of the support ring 2 can be sleeved in the water inlet pipe. After the water enters the valve housing 1, the water squeezes the slip ring 7, and the slip ring 7 carries the limiting linkage ring 6 to move right. At the same time, the slip ring 7 moves right along the inner wall of the valve housing 1, and the slip ring 7 carries the sealing slip ring 9 to move right. The sealing slip ring 9 drives the reinforcement ring 10 to move right, and the reinforcement ring 10 carries the sealing gasket ring 11 to move right. The sealing gasket ring 11 moves right along the inner wall of the valve housing 1. At the same time, the sealing gasket ring 11 can be sealed and squeezed on the inner wall of the valve housing 1, and the limiting linkage ring 6 drives the sleeve 5 to move right at the same time, and the sleeve 5 carries the rubber pad 4 to make the sealing gasket sleeve 3 move right.

[0026] The sealing gasket sleeve 3 moves rightward along the inner wall of the support ring 2. In this way, the slip ring 7 can squeeze the compression spring 14, and the compression spring 14 is compressed on the support ring 2, so that the compression spring 14 can be sealed and squeezed between the support ring 2 and the slip ring 7, and the outer wall of the sealing gasket sleeve 3, so as to avoid the compression spring 14 being immersed in the water body, avoid rust damage on the compression spring 14, and improve the durability of the compression spring 14. After the compression spring 14 is buffered, the water body can enter the inner wall of the sleeve 5 along the multiple liquid inlet holes 8, and the external discharge operation is realized through the sleeve 5, so that the balanced water pressure discharge can be realized at a constant flow rate.

[0027] In this technical solution, as shown in the attached Figure 5-6 As shown, a guide sliding assembly is installed at one end of the limit linkage ring 6; the guide sliding assembly includes a guide block 15 installed at one end of the limit linkage ring 6, and a guide surface 13 is polished on one side of the guide block 15, the inner wall of the guide block 15 is slidably connected with the guide block 15, and the inner wall of the limit linkage ring 6 is slidably connected to the outer wall of the slide rod 16; the outer wall of the slide rod 16 is fixedly connected with a connecting ring 17 at a position on one side of the guide surface 13, a support frame 18 is fixedly installed on one side of the outer wall of the connecting ring 17, and a reinforcement support ring 19 is fixedly connected to one end of the support frame 18, the reinforcement support ring 19 is fixedly connected to the valve housing 1, the outer wall of the guide surface 13 is polished and ground, and the vertical cross-sectional shape of the slide rod 16 is set to be circular, the reinforcement support ring 19 and the support frame 18 are both made of carbon fiber material, and the vertical cross-sectional shape of the reinforcement support ring 19 is circular.

[0028] When the present technical solution is in use, the valve housing 1 supports the reinforcement support ring 19, the reinforcement support ring 19 supports the support frame 18, and the support frame 18 can provide a stable supporting force for the connecting ring 17, the connecting ring 17 supports the slide rod 16, and increases the stability of the slide rod 16, so that the slide rod 16 can guide and slide on the inner wall of the guide block 15 and the inner wall of the limit linkage ring 6, thereby ensuring that the limit linkage ring 6 can be guided to move right along the outer wall of the slide rod 16.

[0029] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A constant flow balancing valve, comprising a valve housing (1), the inner wall of the valve housing (1) being fixedly connected to a support ring (2), the inner wall of the support ring (2) being slidably mounted with a sealing gasket sleeve (3), characterized in that: The inner wall of the sealing gasket sleeve (3) is provided with a sliding sealing component; The sliding seal assembly comprises a rubber pad (4) mounted on the inner wall of a sealing pad sleeve (3), and the inner wall of the rubber pad (4) is fixedly connected to a sleeve (5), and a limit linkage ring (6) is fixedly mounted on one end of the sleeve (5); The outer wall of the limit linkage ring (6) is fixedly connected to a slip ring (7), and the outer wall of the slip ring (7) is slidably connected to the valve housing (1), and a plurality of liquid inlet holes (8) are embedded in the outer wall of the limit linkage ring (6); A sealing slip ring (9) is bonded to one side of the slip ring (7), and a reinforcement ring (10) and a sealing gasket ring (11) are arranged on one side of the sealing slip ring (9) in sequence from the inside to the outside, and the reinforcement ring (10) and the sealing gasket ring (11) are fixedly connected to the sealing slip ring (9).

2. A constant flow balancing valve according to claim 1, characterized in that: One end of the rubber pad (4) and the sealing pad sleeve (3) are both fixedly connected to the limiting linkage ring (6), and the rubber pad (4) and the sleeve (5) are both made of rubber material.

3. A constant flow balancing valve according to claim 1, characterized in that: The plurality of liquid inlet holes (8) are arranged in a circular ring at equal intervals, and the reinforcement ring (10) and the sealing gasket ring (11) are fixedly connected to the sealing sliding ring (9), and the outer wall of the sealing gasket ring (11) is slidably connected to the valve housing (1).

4. A constant flow balancing valve according to claim 1, characterized in that: The outer wall of the valve housing (1) is provided with a threaded groove (12), and the valve housing (1) is made of stainless steel; A compression spring (14) is slidably connected to the outer wall of the sealing gasket sleeve (3) and located between the slip ring (7) and the support ring (2), and the support ring (2) and the slip ring (7) are both fixedly connected to the compression spring (14).

5. A constant flow balancing valve according to claim 1, characterized in that: A guide sliding component is installed at one end of the limit linkage ring (6); The guide sliding assembly comprises a guide block (15) installed at one end of a limit linkage ring (6), and one side of the guide block (15) is polished with a guide surface (13), the inner wall of the guide block (15) is slidably connected with the guide block (15), and the inner wall of the limit linkage ring (6) is slidably connected to the outer wall of the slide rod (16); A connecting ring (17) is fixedly connected to the outer wall of the sliding rod (16) and located at a position on one side of the guide surface (13); a supporting frame (18) is fixedly installed on one side of the outer wall of the connecting ring (17); and a reinforcing support ring (19) is fixedly connected to one end of the supporting frame (18); the reinforcing support ring (19) is fixedly connected to the valve housing (1).

6. A constant flow balancing valve according to claim 5, characterized in that: The outer wall of the guide surface (13) is polished and ground, and the vertical cross-section of the slide rod (16) is set to be circular.

7. A constant flow balancing valve according to claim 5, characterized in that: The reinforcing support ring (19) and the support frame (18) are both made of carbon fiber material, and the vertical cross-section of the reinforcing support ring (19) is in the shape of a circular ring.

Images