Static balance valve

Abstract

The utility model provides a static balance valve, which relates to the technical field of balance valves and comprises a valve body, a convex valve plate is welded at the bottom of a sliding cylinder, and a U-shaped driving frame which is reversely pushed to reset through a spring is slidably mounted on the convex valve plate in a penetrating manner; the threaded valve rod is sleeved with a threaded ring in a screwed mode, four horizontal short shafts are symmetrically welded to the periphery of the threaded ring, a retaining ring is welded to the head ends of the four horizontal short shafts together, and the retaining ring is matched with an opening in the top end of the sliding barrel in an inserted mode. T-shaped positioning pieces are jointly installed on the two horizontal short shafts on each side in a sliding mode, and inserting rods, parallel to the horizontal short shafts, on the two T-shaped positioning pieces penetrate through the retaining rings to be matched with the top ends of the inner circumferences of the sliding barrels in an inserted connection mode. The two T-shaped positioning pieces can be driven to oppositely draw, insert and slide only by sliding the sliding ring up and down, the sliding barrel and the threaded valve rod are locked or separated, the sliding barrel, the convex valve plate and the threaded valve rod are efficiently and conveniently disassembled and assembled, and the replacement efficiency of the sliding barrel and the convex valve plate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to balanced valve technical field especially relates to a static balance valve. BACKGROUND

[0002] The static balance valve can provide suitable flow for each branch according to pipeline characteristics and system requirements through accurate control of valve opening, effectively avoid energy waste, equipment operation anomaly and system performance decline caused by flow imbalance and the like.

[0003] The existing balanced valve adopts the form of thread fixing to be connected and installed with the valve rod for the structure for plugging and closing the valve, when the structure is replaced, the structure needs to be twisted for many times, and the structure is loosened and assembled, so that the operation and use are more troublesome and inconvenient, and the replacement efficiency of the structure is not improved. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a static balance valve to solve the problem of low replacement efficiency of the structure for plugging and closing the valve.

[0005] The utility model discloses a technical scheme of a static balance valve, specifically comprising a valve body, the valve body is composed of a horizontal valve pipe and an inclined valve pipe integrally formed in the middle position of the top of the horizontal valve pipe.

[0006] The top opening of the inclined valve pipe is fixedly connected with a mounting short pipe, the top opening of the mounting short pipe is sealingly fixed with a pipe cover, and the center position of the pipe cover is rotatably connected with a threaded valve rod; a sliding cylinder is slidably installed in the mounting short pipe, the bottom of the sliding cylinder is welded with a convex valve plate, and a U-shaped driving frame is slidably installed in the convex valve plate and is pushed back by a spring; a threaded ring is screwed on the threaded valve rod, four symmetrical horizontal shafts are welded on the outer periphery of the threaded ring, a retaining ring is welded at the first end of the four horizontal shafts, and the retaining ring is inserted into the top opening of the sliding cylinder; a T-shaped positioning piece is slidably installed on each of the two horizontal shafts, and the insertion rods of the two T-shaped positioning pieces are inserted into the top part of the inner periphery of the retaining ring and the sliding cylinder in parallel with the horizontal shafts; a sliding ring is slidably installed on the threaded valve rod above the threaded ring, and two connecting rods are symmetrically connected between the sliding ring and the two T-shaped positioning pieces.

[0007] Further, two L-shaped force rods are symmetrically welded on the outer periphery of the sliding ring, and when the U-shaped driving frame slides upward, the two side rods parallel to the sliding cylinder are in contact with the two L-shaped force rods.

[0008] Further, the bottom side position of the sliding cylinder is welded with a positioning plate, the two side rods on the U-shaped driving frame parallel to the sliding cylinder are slidably connected with the convex valve plate and the positioning plate, the portions of the two side rods between the positioning plate and the convex valve plate are welded with limiting rings, and the portions of the two side rods between the positioning plate and the two limiting rings are sleeved with springs.

[0009] The top end of the convex valve plate is symmetrically provided with two counterbores, the bottom of each limiting ring is fixedly connected with a rubber pad, and the two limiting rings are inserted into the two counterbores and abut against the bottom surface of the two counterbores.

[0010] Further, the inner periphery of the sliding ring is a smooth surface structure.

[0011] Further, the bottom position of the inner periphery of the mounting short pipe is embedded with two rubber sealing rings, and the outer periphery of the sliding cylinder is in frictional and extruding contact with the two rubber sealing rings.

[0012] Further, the middle portion of the horizontal valve pipe is provided with an inclined water pipe, and the top opening of the inclined water pipe is inserted into and abuts against the convex valve plate when the convex valve plate slides downward.

[0013] Further, the top position of the two ends of the horizontal valve pipe is symmetrically screwed with two pressure measuring nozzles communicated with the horizontal valve pipe.

[0014] The static balance valve has the following beneficial effects:

[0015] I. The two connecting rods, the sliding ring and the two T-shaped positioning members jointly form two crank slider mechanisms, through the two mechanisms, only a simple action of sliding the sliding ring up and down can drive the two T-shaped positioning members to slide towards each other, so that the sliding cylinder and the threaded valve rod are locked and connected or separated, and the disassembly and assembly of the sliding cylinder, the convex valve plate and the threaded valve rod are efficiently and conveniently completed.

[0016] II. The spring on the U-shaped driving frame can abut the rubber pads at the bottom of the two limiting rings against the bottom surface of the two counterbores, so as to seal the sliding gap between the U-shaped driving frame and the convex valve plate, and avoid that the water in the horizontal valve pipe and the inclined water pipe enters the sliding cylinder through the sliding gap and leaks out through the rotating gap between the pipe cover and the threaded valve rod during the opening and closing of the convex valve plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced as follows.

[0018] The drawings in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0019] In the drawings:

[0020] Figure 1 The overall structure schematic diagram of the present application is shown;

[0021] Figure 2 The half-section internal structure schematic diagram of the horizontal valve pipe and the installation short pipe in the present application is shown;

[0022] Figure 3 The half-section internal structure schematic diagram of the slide cylinder and the inclined water pipe in the present application is shown;

[0023] Figure 4 The installation position schematic diagram of the U-shaped driving frame in the present application is shown;

[0024] Figure 5 The separated and disassembled state schematic diagram of the U-shaped driving frame and the convex valve plate in the present application is shown;

[0025] Figure 6 The half-section internal structure schematic diagram of the retaining ring in the present application is shown.

[0026] List of reference signs:

[0027] 1, valve body; 101, horizontal valve pipe; 102, inclined valve pipe; 103, pressure measuring nozzle; 104, inclined water pipe;

[0028] 2, installation short pipe; 201, pipe cover; 202, positioning shaft; 203, rubber sealing ring;

[0029] 3, threaded valve rod; 301, threaded ring; 302, horizontal short shaft; 303, retaining ring; 304, connecting rod; 305, sliding ring; 3051, L-shaped stress rod; 306, T-shaped positioning piece;

[0030] 4, slide cylinder; 401, convex valve plate; 4011, counterbore; 402, shaft hole; 403, positioning plate; 404, U-shaped driving frame; 4041, limiting ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described clearly and completely in combination with the drawings of the utility model embodiments below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] Please refer to Figures 1 to 6 ;

[0033] Embodiment one:

[0034] The utility model proposes a kind of static balance valve, including valve body 1, valve body 1 whole is by horizontal valve pipe 101 and the inclined valve pipe 102 integrally formed in the middle position of the top of horizontal valve pipe 101 jointly composed;

[0035] The top end opening of inclined valve pipe 102 is fixedly connected with installation short pipe 2, the top end opening of installation short pipe 2 is sealingly fixed with pipe cover 201, the center position of pipe cover 201 is penetrated and is rotatably installed with threaded valve stem 3;Slipper 4 is slidably installed in installation short pipe 2, the bottom of slipper 4 is welded with convex valve plate 401, U-shaped drive frame 404 is slidably installed on convex valve plate 401 and is pushed back by spring;Threaded ring 301 is screwed and is installed on threaded valve stem 3, four horizontal short shafts 302 are symmetrically welded on the outer periphery of threaded ring 301, the first end of four horizontal short shafts 302 is commonly welded with retaining ring 303, and retaining ring 303 is inserted with the top opening of slipper 4 in cooperation;T-shaped positioning piece 306 is slidably installed on each side two horizontal short shafts 302, and the insertion rod parallel to horizontal short shaft 302 on two T-shaped positioning pieces 306 is inserted with the top part of the inner periphery of slipper 4 in cooperation;Slip ring 305 is slidably installed on the part above threaded ring 301 of threaded valve stem 3, and two connecting rods 304 are symmetrically connected between slip ring 305 and two T-shaped positioning pieces 306.

[0036] Preferably, the outer periphery of slip ring 305 is symmetrically welded with two L-shaped force rods 3051, and when U-shaped drive frame 404 slides upward, the two side rods parallel to slipper 4 correspond with the abutting contact of two L-shaped force rods 3051.

[0037] Preferably, positioning plate 403 is welded on the bottom side position in the inside of slipper 4, and the two side rods parallel to slipper 4 on U-shaped drive frame 404 are slidably matched with convex valve plate 401 and positioning plate 403, and the part between positioning plate 403 and convex valve plate 401 on the two side rods is welded and installed with limiting ring 4041, and the part between positioning plate 403 and two limiting rings 4041 on the two side rods is compressed and installed with spring;

[0038] The convex valve plate 401 is symmetrically provided with two counterbores 4011 at the top end, the bottom of each of the two limiting rings 4041 is fixedly attached with a rubber pad, the two limiting rings 4041 are inserted into the two counterbores 4011, and the two rubber pads are in contact with the bottom surface of the two counterbores 4011.

[0039] Preferably, the inner periphery of the slip ring 305 is smooth.

[0040] Based on the first embodiment, the second embodiment is as follows:

[0041] The bottom of the inner periphery of the short pipe 2 is embedded with two rubber sealing rings 203, the outer periphery of the sliding cylinder 4 is in frictional contact with the two rubber sealing rings 203; the middle part of the horizontal valve pipe 101 is provided with an inclined water pipe 104, the convex valve plate 401 is inserted into the top opening of the inclined water pipe 104 and is in sealing contact when it slides downward; the top of the two ends of the horizontal valve pipe 101 is symmetrically screwed with two pressure measuring nozzles 103 which are in communication with the horizontal valve pipe 101; the bottom of the pipe cover 201 is symmetrically welded with two positioning shafts 202, the sliding cylinder 4 is symmetrically provided with two shaft holes 402, and the two positioning shafts 202 are in sliding contact with the two shaft holes 402.

[0042] The working principle, specific details, implementation steps, functions and mutual relationships of the features, and the role played in the process of realizing the present application of the above-mentioned content are described and explained in detail as follows:

[0043] When the convex valve plate 401 slides upward and separates from the top opening of the inclined water pipe 104, the horizontal valve pipe 101 is connected, and the balance valve is opened; when the convex valve plate 401 slides downward and is in sealing contact with the top opening of the inclined water pipe 104, the horizontal valve pipe 101 is blocked, and the balance valve is closed; the forward and reverse rotation of the threaded valve rod 3 drives the sliding cylinder 4 and the convex valve plate 401 to slide upward and downward, and the balance valve is opened and closed, and the opening degree of the balance valve is adjusted.

[0044] When the convex valve plate 401 and the sliding cylinder 4 are replaced after wear, the mounting short pipe 2 needs to be loosened and removed, and the sliding cylinder 4 and the convex valve plate 401 are taken out from the inclined valve pipe 102; the two T-shaped positioning members 306 can insert the threaded ring 301 and the retaining ring 303 together with the sliding cylinder 4 to be inserted and positioned, so that the sliding cylinder 4 is in driving connection with the threaded valve rod 3; the two connecting rods 304, the sliding ring 305 and the two T-shaped positioning members 306 are connected together to form two crank slider mechanisms, through the two mechanisms, only the simple action of sliding the sliding ring 305 up and down can drive the two T-shaped positioning members 306 to slide towards each other, so that the sliding cylinder 4 and the threaded valve rod 3 are in locking connection or loose separation, and the disassembly and assembly of the sliding cylinder 4 and the convex valve plate 401 and the threaded valve rod 3 are efficiently and conveniently completed, compared with the prior art that the sliding cylinder 4 and the convex valve plate 401 are directly arranged in threaded connection with the threaded valve rod 3, the complicated steps of rotating the sliding cylinder 4 and the convex valve plate 401 for multiple turns when the sliding cylinder 4 and the convex valve plate 401 are replaced can be omitted, and the disassembly and assembly of the sliding cylinder 4 and the convex valve plate 401 are facilitated, and the replacement efficiency of the sliding cylinder 4 and the convex valve plate 401 is improved.

[0045] When the U-shaped driving frame 404 slides upward, the L-shaped force rod 3051 can push and drive the sliding ring 305 to slide upward, when the U-shaped driving frame 404 is loosened, the U-shaped driving frame 404 is automatically pushed downward and reset by the spring thereon, and meanwhile the sliding ring 305 is automatically reset by the spring on the horizontal short shaft 302.

[0046] The spring on the U-shaped driving frame 404 can press the rubber pads at the bottoms of the two limiting rings 4041 against the bottom surfaces of the two counterbores 4011, so that the sliding gap between the U-shaped driving frame 404 and the convex valve plate 401 is sealed, and water in the horizontal valve pipe 101 and the inclined water pipe 104 is prevented from entering the sliding cylinder 4 through the sliding gap and leaking out through the rotating gap between the pipe cover 201 and the threaded valve rod 3.

[0047] The two rubber sealing rings 203 can seal the sliding gap between the sliding cylinder 4 and the mounting short pipe 2, so that water in the horizontal valve pipe 101 and the inclined water pipe 104 is prevented from entering the mounting short pipe 2 through the sliding gap and leaking out through the rotating gap between the pipe cover 201 and the threaded valve rod 3.

[0048] In this paper, the following points need to be noted:

[0049] 1. The drawings of the embodiments of the utility model only relate to the structures involved in the embodiments of the utility model, and other structures can refer to the general design.

[0050] 2. In the case of no conflict, the embodiments of the utility model and the features in the embodiments can be combined to obtain new embodiments.

[0051] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A static balance valve, comprising a valve body (1) which is integrally composed of a horizontal valve pipe (101) and an inclined valve pipe (102) integrally formed in the middle of the top of the horizontal valve pipe (101); characterized in that A mounting short pipe (2) is fixedly connected to the top opening of the inclined valve pipe (102), a pipe cover (201) is sealingly fixed to the top opening of the mounting short pipe (2), and a threaded valve rod (3) is rotatably installed in the center of the pipe cover (201); a sliding cylinder (4) is slidingly installed in the mounting short pipe (2), a convex valve plate (401) is welded to the bottom of the sliding cylinder (4), and a U-shaped driving frame (404) which is reset by spring counter thrust is slidingly installed in the convex valve plate (401); a threaded ring (301) is screwed onto the threaded valve rod (3), four horizontal short shafts (302) are symmetrically welded to the outer periphery of the threaded ring (301), a retaining ring (303) is commonly welded to the first ends of the four horizontal short shafts (302), and the retaining ring (303) is insertedly matched with the top opening of the sliding cylinder (4); a T-shaped positioning piece (306) is slidingly installed on each of the two horizontal short shafts (302), and the insertion rods parallel to the horizontal short shafts (302) on the two T-shaped positioning pieces (306) are insertedly matched with the top part of the inner periphery of the sliding cylinder (4) through the retaining ring (303); a sliding ring (305) is slidingly installed on the part of the threaded valve rod (3) above the threaded ring (301), and two connecting rods (304) are symmetrically rotatably connected between the sliding ring (305) and the two T-shaped positioning pieces (306).

2. A static balance valve according to claim 1, characterised in that Two L-shaped force rods (3051) are symmetrically welded to the outer periphery of the sliding ring (305), and when the U-shaped driving frame (404) slides upward, the two side rods parallel to the sliding cylinder (4) on the U-shaped driving frame (404) correspondingly abut against and contact the two L-shaped force rods (3051).

3. A static balance valve according to claim 1, characterized in that A positioning plate (403) is welded to the bottom side position inside the sliding cylinder (4), the two side rods parallel to the sliding cylinder (4) on the U-shaped driving frame (404) are slidingly matched with the convex valve plate (401) and the positioning plate (403), the parts of the two side rods between the positioning plate (403) and the convex valve plate (401) are all welded and sleeved with limiting rings (4041), and the parts of the two side rods between the positioning plate (403) and the two limiting rings (4041) are compressed and sleeved with springs; Two counterbores (4011) are symmetrically formed in the top end of the convex valve plate (401), rubber pads are fixedly adhered to the bottoms of the two limiting rings (4041), the two limiting rings (4041) are insertedly matched with the two counterbores (4011), and the two rubber pads abut against and contact the bottom surfaces of the two counterbores (4011).

4. A static balance valve according to claim 1, characterized in that The inner periphery of the sliding ring (305) is a smooth surface structure.

5. A static balance valve according to claim 1, characterized in that Two rubber sealing rings (203) are embeddedly installed at the bottom position of the inner periphery of the mounting short pipe (2) in an up-down interval, and the outer periphery of the sliding cylinder (4) is frictionally and extrusively contacted with the two rubber sealing rings (203).

6. A static balance valve according to claim 1, characterized in that The middle part of the horizontal valve pipe (101) is provided with an inclined water pipe (104), and the convex valve plate (401) is inserted and matched with the top opening of the inclined water pipe (104) and abuts against the seal when sliding downward.

7. A static balancing valve according to claim 1, characterized in that Two pressure measuring nozzles (103) communicating with the horizontal valve pipe (101) are symmetrically screwed at the top positions of both ends of the horizontal valve pipe (101).

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