A static balancing valve

Abstract

The present invention is applicable to the technical field of static balancing valves, and provides a static balancing valve, including a valve body assembly, wherein both opposite end surfaces of the valve body assembly are connected and fixedly provided with a pipe body assembly; the pipe body assembly includes a pipe body part, a plurality of rotating parts rotatably fitted inside the pipe body part, and a sliding part slidably fitted inside the pipe body part, and the sliding part is away from one side of the plurality of rotating parts. The device solves the problem that during the installation and use of the existing static balancing valve, there is a certain leakage hazard between the static balancing valve and the docking pipeline under long-term use, resulting in insufficient tightness of the connection between the static balancing valve and the docking pipeline, which makes it easy to leak during the later use. The device achieves and can further improve the sealing performance of the connection between the connecting cover and the valve body assembly, and prevents leakage during the transmission process.

Description

Technical Field

[0001] The present invention relates to the technical field of static balancing valves, and more specifically, to a static balancing valve. Background Art

[0002] The static balancing valve is a regulating valve with a digital locking function. It adopts a direct-current valve body structure and has better equal percentage flow characteristics. It can reasonably distribute the flow and effectively solve the problem of uneven room temperature in the heating system. At the same time, it can accurately adjust the pressure drop and flow to improve the liquid flow state in the pipe network system, so as to achieve the purpose of pipe network liquid balance and resource saving.

[0003] At present, static balancing valves on the market often encounter the following technical problems during installation and use:

[0004] During the installation and use of existing static balancing valves, there are often certain leakage risks between the static balancing valve and the docking pipeline under long-term use, resulting in insufficient tightness of the connection between the static balancing valve and the docking pipeline, which makes it easy to leak during later use. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a static balancing valve that can further improve the sealing performance of the connection between the connection cover and the valve body assembly to prevent leakage during the transmission process.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A static balancing valve comprises a valve body assembly, wherein two opposite end surfaces of the valve body assembly are both connected and fixedly provided with a pipe body assembly.

[0008] The tube body assembly comprises a tube body part, a plurality of rotating parts rotatably matched inside the tube body part, and a sliding part slidably matched inside the tube body part, wherein the sliding part is away from one side of the plurality of rotating parts.

[0009] The pipe body comprises a circulation pipe, one end of which is fixedly connected to a connecting cover, a plurality of rectangular covers are connected to the outer peripheral side of the connecting cover, a rotating shaft which is rotatably matched with a rotating member is fixed to the inner wall of the rectangular cover, a supporting plate is fixed to the inner wall of the rectangular cover, a first arc spring which is fixedly connected to the rotating member is fixed to one side of the supporting plate, and a first connecting flange which is fixedly connected to the valve body assembly is fixed to one end of the connecting cover.

[0010] The sliding part includes a sliding ring that is slidably fitted inside the connecting cover, and a plurality of groups of rectangular plates are fixed to the end of the sliding ring. Each group of rectangular plates has a key groove penetrating through one opposite side surface that is slidably fitted with the rotating part. A first sealing rubber ring is fixed to one end surface of the sliding ring, and a second sealing rubber ring is fixed to the other opposite end surface of the sliding ring.

[0011] The present invention is further configured as follows: a first annular groove is formed on the inner wall of the connection cover, a second annular groove is formed on the inner wall of the first annular groove to be slidably matched with the first sealing rubber ring, and the connection between the second annular groove and the first annular groove is chamfered.

[0012] The number of the rectangular plates in each group is two and they are symmetrically arranged.

[0013] The present invention is further configured as follows: the rotating part includes a rotating cylinder rotatably fitted on the circumferential side of the rotating shaft, an arc-shaped blade is fixed to the outer circumferential side of the rotating cylinder, a hinge seat is fixed to the inner wall of the arc-shaped blade, the inner wall of the hinge seat is hingedly fitted with an hinge arm, and one end of the first arc spring is fixedly connected to the inner wall of the arc-shaped blade.

[0014] A shifting rod which is slidably matched in the key slot is fixed on the opposite side of the hinged arm.

[0015] The present invention is further configured as follows: the thickness of the sliding ring is greater than the thickness of the first annular groove, a plurality of guide holes are opened through one side of the sliding ring, a plurality of sliding rods are fixed to the other end face of the sliding ring, and one end of one of the sliding rods is threadedly connected to an L-shaped reciprocating rod.

[0016] The present invention is further configured as follows: the sliding ring is fixed with a plurality of return springs which are respectively sleeved and fitted on the peripheral side surfaces of the sliding rod relative to the other end surface.

[0017] An interference ball is fixed on one end surface of the L-shaped reciprocating rod.

[0018] The valve body assembly includes a valve body part and a knocking part rotatably fitted inside the valve body part.

[0019] The present invention is further configured as follows: the valve body comprises a valve body, and second connecting flanges are fixed to opposite end surfaces of the valve body, and the second connecting flange is fixedly connected to the first connecting flange by bolts.

[0020] A positioning ring is fixed on the inner wall of the valve body, and a plurality of sliding holes are penetrated through one side of the positioning ring. The plurality of sliding holes are respectively slidably matched with the sliding rods, and one end of the reset spring is fixedly connected to one side of the positioning ring.

[0021] The present invention is further configured as follows: a plurality of guide cross bars are fixed on one side of the positioning ring, a plurality of limit circular plates are fixed on one end of the plurality of guide cross bars, and a plurality of guide holes are slidably matched with the plurality of guide cross bars.

[0022] The sliding ring is provided with a conical cavity opposite to the other end surface.

[0023] A conical platform is fixed on one side of the positioning ring, and the conical platform is matched with the conical cavity.

[0024] The present invention is further configured as follows: a filtering inclined plate is fixed on a side of the inner wall of the valve body away from the positioning ring.

[0025] Two symmetrical rectangular support plates are fixed on a side of the inner wall of the valve body away from the positioning ring.

[0026] A central axis is fixed between the two rectangular support plates.

[0027] The present invention is further configured as follows: the knocking member includes a rotating plate that is intermittently in contact with the resistance ball, a rotating hole that is rotatably engaged with the central axis is penetrated through one side of the rotating plate, a second arc spring that is fixedly connected to the inner wall of the valve body is fixed on one side of the rotating plate, an extension plate is fixed to the bottom of the rotating plate, and a knocking ball that is intermittently in contact with the filter inclined plate is fixed to the bottom of the extension plate.

[0028] A guide sliding hole is formed through one side of the filtering inclined plate, and the guide sliding hole is slidably matched with one of the sliding rods.

[0029] The advantages of the present invention are:

[0030] 1. The present invention drives the first sealing rubber ring and the second sealing rubber ring to slide inside the static balancing valve through the flow force of the liquid in the transmission medium, so that the first sealing rubber ring and the second sealing rubber ring can be located between the connection cover and the valve body assembly during transmission, thereby further improving the sealing performance of the connection between the connection cover and the valve body assembly and preventing leakage during transmission.

[0031] 2. The present invention drives the guide hole and the slide to synchronously slide in the guide and slide holes in the forward or reverse direction respectively through the circulation and stopping of the circulation of the liquid in the transmission medium, so that the L-shaped reciprocating rod threadedly connected to one end of the sliding rod slides in the forward or reverse direction inside the guide slide hole penetrated by one side of the filter inclined plate, so that the resistance ball fixed at one end of the L-shaped reciprocating rod gradually approaches or moves away from one side of the rotating plate, and in turn combines with the elastic force of the second arc spring stretched and fixed between the rotating plate and the valve body, so that the extension plate fixed at the bottom of the rotating plate and the knocking ball fixed at the bottom of the extension plate gradually approach or move away from one side of the filter inclined plate, generating a knocking force on one side of the filter inclined plate, preventing insoluble impurities in the liquid medium from accumulating and clogging on the filter inclined plate, and avoiding its influence on the subsequent transmission process, thereby improving the use effect of the static balancing valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The figure is a schematic diagram of the installation structure of a static balancing valve of the present invention.

[0033] Figure 2 This is a front view of the installation structure of a static balancing valve of the present invention.

[0034] Figure 3 It is a schematic diagram of the internal structure of the valve body assembly of the present invention.

[0035] Figure 4 It is an internal front view of the valve body assembly of the present invention.

[0036] Figure 5 It is a schematic diagram of the internal structure of the pipe body assembly of the present invention.

[0037] Figure 6 It is an internal front view of the pipe body assembly of the present invention.

[0038] Figure 7 It is a schematic diagram of the internal structure of the pipe body of the present invention.

[0039] Figure 8 It is a schematic structural diagram of the rotating part of the present invention.

[0040] Fig. 9 It is a schematic structural diagram of the sliding member of the present invention.

[0041] Fig.10 It is a schematic structural diagram of the sliding member at another angle of the present invention.

[0042] Fig.11 It is a schematic diagram of the cross-sectional structure of the valve body of the present invention.

[0043] Fig.12 It is a front view of the cross-sectional structure of the valve body of the present invention.

[0044] Fig.13 It is a schematic diagram of the structure of the striking member of the present invention.

[0045] In the figure: 1, valve body assembly; 2, pipe body assembly; 3, pipe body member; 4, rotating member; 5, sliding member; 6, valve body member; 7, knocking member; 301, flow pipe; 302, connecting cover; 303, rectangular cover; 304, rotating shaft; 305, support plate; 306, first arc spring; 307, first connecting flange; 308, first annular groove; 309, second annular groove; 401, rotating cylinder; 402, arc blade; 403, hinge seat; 404, hinge arm; 405, lever; 501, sliding ring; 502, rectangular plate; 503, keyway; 504, first sealing rubber ring; 505, second sealing rubber ring; 506, guide hole; 507, sliding rod; 508, L-shaped reciprocating rod; 509, reset spring; 510, resistance ball; 511, conical cavity; 601, valve body; 602, second connecting flange; 603, positioning ring; 604, sliding hole; 605, guide cross bar; 606, limit circular plate; 607, conical platform; 608, filter inclined plate; 609, rectangular support plate; 610, central axis; 611, guide sliding hole; 701, rotating plate; 702, rotating hole; 703, second arc spring; 704, extension plate; 705, knocking ball. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0048] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0049] For example, see Figure 1-13 , the present invention provides the following technical solutions:

[0050] A static balancing valve, specifically, comprises a valve body assembly 1, both opposite end surfaces of the valve body assembly 1 are connected and fixedly provided with a pipe body assembly 2; the pipe body assembly 2 comprises a pipe body part 3, a plurality of rotating parts 4 rotatably fitted inside the pipe body part 3, a sliding part 5 slidably fitted inside the pipe body part 3, and the sliding part 5 is away from one side of the plurality of rotating parts 4; the pipe body part 3 comprises a flow pipe 301, one end of the flow pipe 301 is fixedly connected with a connecting cover 302, and the outer peripheral side surface of the connecting cover 302 is connected and provided with a plurality of rectangular covers 303, A rotating shaft 304 that rotates with the rotating member 4 is fixed to the inner wall of the rectangular cover 303, a support plate 305 is fixed to the inner wall of the rectangular cover 303, a first arc spring 306 that is fixedly connected to the rotating member 4 is fixed to one side of the support plate 305, and a first connecting flange 307 that is fixedly connected to the valve body assembly 1 is fixed to one end of the connecting cover 302; the sliding member 5 includes a sliding ring 501 that slides inside the connecting cover 302, and a plurality of groups of rectangular plates 502 are fixed to the end of the sliding ring 501, and each group of rectangular plates 502 is connected to each other. A key groove 503 is formed through one side surface to slide with the rotating member 4, a first sealing rubber ring 504 is fixed to one end surface of the sliding ring 501, and a second sealing rubber ring 505 is fixed to the other end surface of the sliding ring 501; a first annular groove 308 is formed on the inner wall of the connecting cover 302, and a second annular groove 309 is formed on the inner wall of the first annular groove 308 to slide with the first sealing rubber ring 504, and the connection between the second annular groove 309 and the first annular groove 308 is chamfered; each set of rectangular There are two plates 502, and they are symmetrically arranged; the rotating member 4 includes a rotating cylinder 401 that is rotatably engaged with the peripheral side of the rotating shaft 304, an arc-shaped leaf plate 402 is fixed to the outer peripheral side of the rotating cylinder 401, a hinge seat 403 is fixed to the inner wall of the arc-shaped leaf plate 402, and a hinge arm 404 is hingedly engaged with the inner wall of the hinge seat 403, and one end of the first arc spring 306 is fixedly connected to the inner wall of the arc-shaped leaf plate 402; a lever 405 that is slidably engaged with the inside of the key slot 503 is fixed to the opposite side of the hinge arm 404.

[0051] The specific application of the first embodiment is as follows: during the use of the static balancing valve, as the liquid in the transmission medium passes through the circulation pipe 301 and enters the interior of the connecting cover 302, the liquid in the transmission medium will generate a flow force on the plurality of arc-shaped blades 402 through its own flow force, driving the rotating cylinders 401 respectively fixed on the plurality of arc-shaped blades 402 to rotate synchronously on the peripheral side surfaces of the plurality of rotating shafts 304, so that the first arc spring 306 fixedly connected between the support plate 305 and the arc-shaped blade 402 is gradually compressed, thereby playing a role in moving the valve. The buffering effect of the movement causes the inner walls of the plurality of arc-shaped blades 402 to gradually approach the direction of the rectangular plate 502, thereby driving the plurality of hinged arms 404 respectively hingedly matched in the plurality of hinged seats 403 to press down in each set of rectangular plates 502, so that the levers 405 respectively fixed on the two sides of the hinged arms 404 slide in the key slots 503 respectively opened on the two sides of each set of rectangular plates 502, and gradually approach the center position of the sliding ring 501, thereby driving the first sealing rubber fixed at one end of the sliding ring 501 The ring 504 slides inside the first annular groove 308 opened on the inner wall of the connecting cover 302 and the second annular groove 309 opened on the inner wall of the first annular groove 308, so that the second sealing rubber ring 505 fixed on the other end face of the sliding ring 501 gradually slides out of the chamfered position of the connection between the second annular groove 309 and the first annular groove 308, and gradually approaches the connection between the connecting cover 302 and the valve body assembly 1, until the second sealing rubber ring 505 slides over the connection between the connecting cover 302 and the valve body assembly 1, so that the first sealing rubber ring 504, the second sealing rubber ring 505, The rubber rings 505 are respectively located between the connection covers 302 and the valve body assembly 1, whereby the flow force of the liquid in the transmission medium drives the first sealing rubber ring 504 and the second sealing rubber ring 505 to slide inside the static balancing valve, so that the first sealing rubber ring 504 and the second sealing rubber ring 505 can be located between the connection covers 302 and the valve body assembly 1 during transmission, thereby further improving the sealing performance of the connection between the connection covers 302 and the valve body assembly 1 and preventing leakage during transmission.

[0052] For example 2, please refer to Figure 1-13The second embodiment is improved on the basis of the first embodiment as follows. Specifically, the thickness of the sliding ring 501 is greater than the thickness of the first annular groove 308. A plurality of guide holes 506 are formed through one side of the sliding ring 501. A plurality of sliding rods 507 are fixed relative to the other end face of the sliding ring 501. One end of one of the sliding rods 507 is threadedly connected to an L-shaped reciprocating rod 508. A plurality of return springs 509 are fixed relative to the other end face of the sliding ring 501. A resistance ball 510 is fixed to one end face of the L-shaped reciprocating rod 508. The valve body assembly 1 includes a valve body The valve body 6 comprises a valve body 601, and second connecting flanges 602 are fixed to opposite end faces of the valve body 601, and the second connecting flange 602 is fixedly connected to the first connecting flange 307 by bolts; a positioning ring 603 is fixed to the inner wall of the valve body 601, and a plurality of sliding holes 604 are penetrated through one side of the positioning ring 603, and the plurality of sliding holes 604 are respectively slidably matched with the sliding rod 507, and one end of the return spring 509 is fixedly connected to one side of the positioning ring 603; a plurality of guide cross bars 603 are fixed to one side of the positioning ring 603 05, a plurality of guide crossbars 605 are fixed with limited circular plates 606 at one end, and a plurality of guide holes 506 are respectively slidably matched with a plurality of guide crossbars 605; a conical cavity 511 is provided on the other end face of the sliding ring 501; a conical platform 607 is fixed on one side of the positioning ring 603, and the conical platform 607 is adapted to the conical cavity 511; a filter inclined plate 608 is fixed on the side of the inner wall of the valve body 601 away from the positioning ring 603; two symmetrical rectangular support plates 609 are fixed on the side of the inner wall of the valve body 601 away from the positioning ring 603; a fixed between the two rectangular support plates 609 There is a central axis 610; the knocking member 7 includes a rotating plate 701 which is intermittently in contact with the resistance ball 510, a rotating hole 702 which is rotatably matched with the central axis 610 is opened on one side of the rotating plate 701, a second arc spring 703 which is fixedly connected to the inner wall of the valve body 601 is fixed on one side of the rotating plate 701, an extension plate 704 is fixed on the bottom of the rotating plate 701, and a knocking ball 705 which is intermittently in contact with the filter inclined plate 608 is fixed on the bottom of the extension plate 704; a guide sliding hole 611 is opened on one side of the filter inclined plate 608, and the guide sliding hole 611 is slidably matched with one of the sliding rods 507.

[0053] The specific application of the second embodiment is as follows: during the use of the static balancing valve, when the liquid in the transmission medium passes through the transmission guide of the valve body 6, the liquid medium transmitted inside it will be initially filtered through the filter inclined plate 608 fixed on the side of the inner wall of the valve body 601 away from the positioning ring 603 after sealing protection, so as to preliminarily filter the insoluble impurities existing inside it, so that the liquid in the transmission medium can be better transmitted and guided inside the valve body 6. When the transmitted liquid medium passes through the valve body 601, the transmitted liquid medium in the transmission process will generate a horizontal driving force on the sliding ring 501 under the support of its own flow force, thereby driving the sliding ring 501 moves horizontally. When the sliding ring 501 moves horizontally, the return spring 509 connected and fixed between the sliding ring 501 and the positioning ring 603 is compressed, and at the same time, the guide hole 506 and the sliding rod 507 are driven to slide synchronously inside the guide cross bar 605 and the sliding hole 604, respectively, so that the L-shaped reciprocating rod 508 threadedly connected to one end of the sliding rod 507 slides inside the guide sliding hole 611 penetrated and opened on one side of the filter inclined plate 608, and thereby the contact ball 510 fixed to one end of the L-shaped reciprocating rod 508 gradually approaches one side of the rotating plate 701, thereby providing a thrust to the rotating plate 701 rotatingly matched on the central axis 610. , so that the second arc spring 703 fixedly connected between the rotating plate 701 and the valve body 601 is gradually stretched, thereby driving the extension plate 704 fixed at the bottom of the rotating plate 701 and the knocking ball 705 fixed at the bottom of the extension plate 704 to gradually approach one side of the filter inclined plate 608. Subsequently, when the liquid in the transmission medium is not being transmitted, the compressed return spring 509 begins to reset, so that the guide hole 506 and the sliding rod 507 are synchronously slid in the inside of the guide cross bar 605 and the sliding hole 604 respectively, and thereby driving the L-shaped reciprocating rod 508 threadedly connected to one end of the sliding rod 507 to slide in the inside of the guide sliding hole 611 penetrating through one side of the filter inclined plate 608. The reverse sliding causes the resistance ball 510 fixed at one end of the L-shaped reciprocating rod 508 to gradually move away from one side of the rotating plate 701. At this time, combined with the elastic force of the second arc spring 703 stretched and fixed between the rotating plate 701 and the valve body 601, the extension plate 704 fixed at the bottom of the rotating plate 701 and the knocking ball 705 fixed at the bottom of the extension plate 704 gradually move away from one side of the filter inclined plate 608, thereby generating a knocking force on one side of the filter inclined plate 608 when the liquid medium is transmitted, preventing the insoluble impurities in the liquid medium from accumulating and clogging on the filter inclined plate 608, avoiding its influence on the subsequent transmission process, thereby improving the use effect of the static balancing valve.

[0054] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. 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. The above description is only a preferred implementation mode of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A static balancing valve, comprising a valve body assembly (1), characterized in that: The two opposite end surfaces of the valve body assembly (1) are both connected and fixedly provided with a pipe body assembly (2); The pipe body assembly (2) comprises a pipe body member (3), a plurality of rotating members (4) rotatably engaged inside the pipe body member (3), and a sliding member (5) slidably engaged inside the pipe body member (3), wherein the sliding member (5) is away from one side of the plurality of rotating members (4), and the sliding member (5) is located downstream of the plurality of rotating members (4); The pipe body member (3) comprises a circulation pipe (301), one end of the circulation pipe (301) is fixedly connected to a connection cover (302), the outer peripheral side surface of the connection cover (302) is connected to a plurality of rectangular covers (303), the inner wall of the rectangular cover (303) is fixed with a rotating shaft (304) that rotates with the rotating member (4), the inner wall of the rectangular cover (303) is fixed with a support plate (305), one side of the support plate (305) is fixed with a first arc spring (306) that is fixedly connected to the rotating member (4), and one end of the connection cover (302) is fixed with a first connection flange (307) that is fixedly connected to the valve body assembly (1); The sliding member (5) comprises a sliding ring (501) that is slidably engaged inside the connecting cover (302); a plurality of groups of rectangular plates (502) are fixed to one end of the sliding ring (501); a key groove (503) that is slidably engaged with the rotating member (4) is penetrated through an opposite side surface of each group of rectangular plates (502); a first sealing rubber ring (504) is fixed to one end surface of the sliding ring (501); a second sealing rubber ring (505) is fixed to the other end surface of the sliding ring (501); and the first sealing rubber ring (504) and the second sealing rubber ring (505) are driven to slide inside the static balancing valve by the flow force of the liquid in the transmission medium.

2. A static balancing valve according to claim 1, characterized in that: The inner wall of the connection cover (302) is provided with a first annular groove (308), the inner wall of the first annular groove (308) is provided with a second annular groove (309) for slidingly cooperating with the first sealing rubber ring (504), and the connection between the second annular groove (309) and the first annular groove (308) is chamfered; The number of the rectangular plates (502) in each group is two, and they are symmetrically arranged.

3. A static balancing valve according to claim 2, characterized in that: The rotating member (4) comprises a rotating cylinder (401) rotatably engaged with the peripheral side of the rotating shaft (304); an arc-shaped blade (402) is fixed to the peripheral side of the rotating cylinder (401); a hinge seat (403) is fixed to the inner wall of the arc-shaped blade (402); a hinge arm (404) is hingedly engaged with the inner wall of the hinge seat (403); and one end of the first arc-shaped spring (306) is fixedly connected to the inner wall of the arc-shaped blade (402); A lever (405) that is slidably fitted in the key slot (503) is fixed to the opposite side of the hinged arm (404).

4. A static balancing valve according to claim 3, characterized in that: The thickness of the sliding ring (501) is greater than the thickness of the first annular groove (308). A plurality of guide holes (506) are formed through one side of the sliding ring (501). A plurality of sliding rods (507) are fixed to the other end face of the sliding ring (501). One end of one of the sliding rods (507) is threadedly rotatably connected to an L-shaped reciprocating rod (508).

5. A static balancing valve according to claim 4, characterized in that: A plurality of return springs (509) are fixed to the other end surface of the sliding ring (501) and are respectively sleeved and fitted on the peripheral side surfaces of the sliding rod (507); A resistance ball (510) is fixed to one end surface of the L-shaped reciprocating rod (508); The valve body assembly (1) comprises a valve body member (6) and a knocking member (7) rotatably fitted inside the valve body member (6).

6. A static balancing valve according to claim 5, characterized in that: The valve body (6) comprises a valve body (601), and second connecting flanges (602) are fixed to opposite end surfaces of the valve body (601), and the second connecting flange (602) is fixedly connected to the first connecting flange (307) by bolts; A positioning ring (603) is fixed to the inner wall of the valve body (601), and a plurality of sliding holes (604) are formed through one side of the positioning ring (603). The plurality of sliding holes (604) are respectively slidably matched with the sliding rods (507), and one end of the return spring (509) is fixedly connected to one side of the positioning ring (603).

7. A static balancing valve according to claim 6, characterized in that: A plurality of guide cross bars (605) are fixed on one side of the positioning ring (603), a limiting circular plate (606) is respectively fixed on one end of the plurality of guide cross bars (605), and the plurality of guide holes (506) are respectively slidably matched with the plurality of guide cross bars (605); The sliding ring (501) is provided with a conical cavity (511) on the other end surface thereof; A conical platform (607) is fixed on one side of the positioning ring (603), and the conical platform (607) is compatible with the conical cavity (511).

8. A static balancing valve according to claim 7, characterized in that: A filtering inclined plate (608) is fixed to a side of the inner wall of the valve body (601) away from the positioning ring (603); Two symmetrical rectangular support plates (609) are fixed to a side of the inner wall of the valve body (601) away from the positioning ring (603); A central axis (610) is fixed between the two rectangular support plates (609).

9. A static balancing valve according to claim 8, characterized in that: The knocking member (7) comprises a rotating plate (701) that is in intermittent contact with the resisting ball (510); a rotating hole (702) is formed through one side of the rotating plate (701) and is rotatably engaged with the central shaft (610); a second arc spring (703) is fixed to one side of the rotating plate (701) and is fixedly connected to the inner wall of the valve body (601); an extension plate (704) is fixed to the bottom of the rotating plate (701); and a knocking ball (705) that is in intermittent contact with the filtering inclined plate (608) is fixed to the bottom of the extension plate (704); A guide sliding hole (611) is formed through one side of the filtering inclined plate (608), and the guide sliding hole (611) is slidably matched with one of the sliding rods (507).

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