Balance valve

Abstract

The utility model relates to the technical field of balance valves, and discloses a balance valve which comprises a valve body, flange plates are fixedly installed at the left end and the right end of the valve body respectively, pressure measuring devices are fixedly installed on the left side and the right side of the bottom of the valve body respectively, a valve rod is movably installed in the valve body, and a rotating handle is detachably installed at the top of the valve rod. A sealing component is fixedly installed at the bottom of the valve rod and comprises a valve plug, the valve plug is fixedly installed at the bottom of the valve rod and located in the valve body, a cross-shaped rod is fixedly installed in the center of the bottom of the valve plug, and a sealing washer and a sealing ring are fixedly installed on the outer ring of the bottom of the valve plug. By installing devices such as the valve rod, the valve plug, the cross-shaped rod, the sealing washer, the sealing ring, the closed ring and the sealing groove, the sealing performance is high, loss of sealing parts during movement of the valve plug is reduced, and the problems that water leakage occurs to the valve and even the flow cannot be adjusted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of balancing valves, in particular to a balancing valve. Background Art

[0002] In some industries, since there is a large pressure difference or flow difference in various parts of the medium (various flowable substances) in the pipeline or container, in order to reduce or balance the difference, a valve is installed between the corresponding pipelines or containers to adjust the relative balance of pressure on both sides, or to achieve flow balance by diversion. This valve is called a balancing valve. Whether it is a balancing valve or other types of valves, they will have certain faults due to aging of components after long-term use;

[0003] After long-term use, the existing balancing valve may leak due to aging or deformation of the sealing ring, or even the valve may not be closed tightly, resulting in the balancing valve being unable to adjust the flow;

[0004] Therefore, a balancing valve is specially proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a balancing valve having the advantages of strong sealing, reducing the loss of sealing components when the valve plug moves, avoiding valve leakage or even inability to adjust the flow rate, and solving the problem of aging or deformation of sealing components of the existing balancing valve after long-term use.

[0006] To achieve the above object, the utility model provides the following technical solutions: a balancing valve, comprising a valve body, flanges are fixedly installed at both left and right ends of the valve body, pressure gauges are fixedly installed at both left and right sides of the bottom of the valve body, a valve stem is movably installed inside the valve body, and a turning handle is detachably installed on the top of the valve stem;

[0007] A sealing component is fixedly installed at the bottom of the valve stem. The sealing component includes a valve plug. The valve plug is fixedly installed at the bottom of the valve stem and is located inside the valve body.

[0008] Preferably, a cross-shaped rod is fixedly mounted at the center of the bottom of the valve plug, and a sealing gasket and a sealing ring are fixedly mounted on the outer ring of the bottom of the valve plug, and the sealing ring is located on the outside of the sealing gasket.

[0009] Preferably, a lower limit block is fixedly installed at the bottom of the valve body, an upper limit block is fixedly installed at the top of the valve body, and a closing component is fixedly installed between the lower limit block and the upper limit block.

[0010] Preferably, the closing component comprises a closed ring, which is fixedly mounted between a lower limit block and an upper limit block, and a sealing groove is provided on the top outer ring of the closed ring, the size of which matches that of the sealing ring.

[0011] Preferably, the upper and lower ends of the inner wall of the closed ring are respectively fixedly installed with a first connecting column and a second connecting column, and the first connecting column and the second connecting column are respectively fixedly connected with a first limiting ring and a second limiting ring, and the first limiting ring and the second limiting ring are both located at the center of the closed ring.

[0012] Preferably, a dirt-cleaning component is movably installed inside the closed ring, and the dirt-cleaning component includes a rotating rod, and the rotating rod is movably installed between the first limiting ring and the second limiting ring.

[0013] Preferably, a cross notch is provided at the center of the rotating rod, and a brush is provided on the outer surface of the rotating rod, and the brush is in contact with the inner wall of the closed ring.

[0014] Preferably, the cross slot formed in the rotating rod matches the cross-shaped rod, and the cross-shaped rod passes through the rotating rod through the cross slot.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This kind of balancing valve has strong sealing performance by installing valve stem, turning handle, valve plug, cross rod, sealing gasket, sealing ring, closing ring, sealing groove and other devices, which can reduce the loss of sealing parts when the valve plug moves and avoid the problem of valve leakage or even inability to adjust the flow.

[0017] 2. This balancing valve achieves the effect of cleaning the inside of a closed loop by installing a cross rod, a first limit ring, a second connecting column, a second limit ring, a scale cleaning component, a rotating rod, a cross slot, a brush and other devices, thereby solving the problem of clogging of the balancing valve due to the presence of scale after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the balancing valve of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the balancing valve of the utility model;

[0021] Figure 3 It is a schematic diagram of the planar structure of the sealing component and the closing component of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the enclosed component of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the closing component of the utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the scale-cleaning component of the utility model.

[0025] Description of reference numerals:

[0026] 1. Valve body; 2. Flange; 3. Pressure gauge; 4. Valve stem; 5. Turning handle; 6. Sealing component; 61. Valve plug; 62. Cross rod; 63. Sealing gasket; 64. Sealing ring; 7. Lower limit block; 8. Upper limit block; 9. Closing component; 91. Closing ring; 92. Sealing groove; 93. First connecting column; 94. First limiting ring; 95. Second connecting column; 96. Second limiting ring; 10. Cleaning component; 101. Turning rod; 102. Cross notch; 103. Brush. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figures 1 to 6 , the utility model provides a technical solution:

[0029] A balancing valve comprises a valve body 1, flanges 2 are fixedly mounted on both left and right ends of the valve body 1, pressure gauges 3 are fixedly mounted on both left and right sides of the bottom of the valve body 1, a valve stem 4 is movably mounted inside the valve body 1, a turning handle 5 is detachably mounted on the top of the valve stem 4, a sealing component 6 is fixedly mounted on the bottom of the valve stem 4, the sealing component 6 comprises a valve plug 61, the valve plug 61 is fixedly mounted on the bottom of the valve stem 4 and is located inside the valve body 1, a cross rod 62 is fixedly mounted at the center of the bottom of the valve plug 61, a sealing gasket 63 and a sealing ring 64 are fixedly mounted on the outer ring of the bottom of the valve plug 61, The sealing ring 64 is located on the outside of the sealing gasket 63, and the closing component 9 includes a closing ring 91, which is fixedly installed between the lower limit block 7 and the upper limit block 8. A sealing groove 92 is opened on the top outer ring of the closing ring 91, and the size of the sealing groove 92 is consistent with the sealing ring 64. The upper and lower ends of the inner wall of the closing ring 91 are respectively fixedly installed with a first connecting column 93 and a second connecting column 95. The first connecting column 93 and the second connecting column 95 are respectively fixedly connected with a first limiting ring 94 and a second limiting ring 96. The first limiting ring 94 and the second limiting ring 96 are both located at the center of the closing ring 91.

[0030] By adopting the above technical scheme, when in use, the pipeline is connected through the flanges 2 at both ends of the valve body 1, and the switch of the valve body 1 can be controlled by rotating the turning handle 5 on the top of the valve body 1. The turning handle 5 is rotated counterclockwise to drive the valve stem 4 to rotate, and the valve stem 4 drives the sealing component 6 to rise and open the valve. The turning handle 5 is rotated clockwise to drive the valve stem 4 to rotate, and then the valve stem 4 drives the sealing component 6 to descend and close the valve. A sealing gasket 63 and a sealing ring 64 are provided at the bottom of the valve plug 61, and a closing ring 91 is fixedly installed between the lower limit block 7 and the upper limit block 8. A sealing groove 92 that matches the sealing ring 64 is opened on the top of the closing ring 91. When closing the valve again, the valve plug 61 descends, and the sealing ring 64 at the bottom of the valve plug 61 is first inserted into the sealing groove 92 to initially complete the sealing. At this time, the valve plug 61 continues to descend and the sealing ring 64 is completed. The sealing gasket 63 is also completely fitted with the surface of the closing ring 91, and the sealing gasket 63 is then The sealing work is completed for the first time. The design of the sealing gasket 63 and the sealing ring 64 makes the sealing ability of the device significantly improved compared with the conventional balancing valve. At the same time, the design of installing a closed ring 91 between the lower limit block 7 and the upper limit block 8 can prevent the valve plug 61 from directly contacting the lower limit block 7 and the upper limit block 8 when closed. The existing balancing valve usually directly inserts the valve plug 61 between the lower limit block 7 and the upper limit block 8 to achieve sealing. Since the valve plug 61 is in contact with the lower limit block 7 and the upper limit block 8 for a long time, the sealing component is squeezed by the lower limit block 7 and the upper limit block 8 for a long time, which easily leads to problems such as breakage, deformation, poor sealing and water leakage of the sealing component. The present device completes the sealing through the cooperation between the closed ring 91 and the valve plug 61, which can avoid friction between the sealing component 6 and the lower limit block 7 and the upper limit block 8, thereby improving the service life of the sealing component and avoiding the problem of valve leakage or even inability to adjust the flow.

[0031] Specifically, Figures 3 to 6 As shown, a dirt cleaning component 10 is movably installed inside the closed ring 91, and the dirt cleaning component 10 includes a rotating rod 101, which is movably installed between the first limiting ring 94 and the second limiting ring 96. A cross slot 102 is provided at the center of the rotating rod 101, and a brush 103 is provided on the outer surface of the rotating rod 101. The brush 103 contacts the inner wall of the closed ring 91, and the cross slot 102 provided in the rotating rod 101 is consistent with the cross rod 62, and the cross rod 62 passes through the rotating rod 101 through the cross slot 102.

[0032] By adopting the above technical solution, a cross-shaped rod 62 is installed at the center of the bottom of the valve plug 61. When the valve plug 61 rotates and rises, it will drive the cross-shaped rod 62 to rotate and rise. A rotating rod 101 is movably installed inside the closed ring 91. A cross slot 102 is opened at the center of the rotating rod 101. The cross-shaped rod 62 penetrates the rotating rod 101 through the cross slot 102. Because the cross-shaped rod 62 and the cross slot 102 are both cross-shaped, the valve plug 61 can drive the rotating rod 101 to rotate through the cross-shaped rod 62 and the cross slot 102 when it rotates. The cross-shaped rod 62 can also move up and down in the cross slot 102 without The lifting and lowering of the valve plug 61 is delayed, and the rotating rod 101 is restricted in the closed ring 91 by the first limiting ring 94 and the second limiting ring 96, so that the rotating rod 101 can only be in a rotating state but not in a lifting state. A brush 103 is provided on the surface of the rotating rod 101, and the brush 103 is relatively sparse. When the brush 103 rotates, the closed ring 91 can be cleaned but will not hinder the flow of water. Through the above-mentioned structural design, the device can drive the rotating rod 101 to rotate when opening and closing the valve, thereby achieving the effect of cleaning the closed ring 91, and solves the problem of clogging of the balancing valve due to the presence of scale after long-term use.

[0033] Working principle: When in use, the opening and closing of the valve is controlled by rotating the valve stem 4. When opening the valve, the valve stem 4 is rotated counterclockwise to drive the valve plug 61 to rise through the turning handle 5, thereby creating a distance between the valve plug 61 and the closing ring 91. When closing the valve, the valve stem 4 is rotated clockwise to drive the valve plug 61 to descend through the turning handle 5, thereby closing the valve plug 61 and the closing ring 91. When closing the valve, the sealing ring 64 at the bottom of the valve plug 61 is first inserted into the sealing groove 92 at the top of the closing ring 91, and as the valve plug 61 descends, the sealing ring 64 is closed. The sealing ring 64 will be completely inserted into the sealing groove 92, and the sealing gasket 63 will be completely in contact with the surface of the closed ring 91 to complete the seal. When the valve opens and closes, the cross rod 62 at the bottom of the valve plug 61 will drive the rotating rod 101 to rotate. Due to the restrictions of the first limiting ring 94 and the second limiting ring 96, the rotating rod 101 can only rotate. When the rotating rod 101 rotates, it drives the brush 103 on the surface to rotate, thereby cleaning the inner wall of the closed ring 91 to avoid the problem of scale accumulation on the inner wall of the closed ring 91 after long-term use.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A balancing valve, comprising a valve body (1), characterized in that: The left and right ends of the valve body (1) are fixedly mounted with flanges (2), the left and right sides of the bottom of the valve body (1) are fixedly mounted with pressure gauges (3), a valve stem (4) is movably mounted inside the valve body (1), and a turning handle (5) is detachably mounted on the top of the valve stem (4); A sealing component (6) is fixedly mounted on the bottom of the valve stem (4), and the sealing component (6) comprises a valve plug (61). The valve plug (61) is fixedly mounted on the bottom of the valve stem (4) and is located inside the valve body (1).

2. A balancing valve according to claim 1, characterized in that: A cross-shaped rod (62) is fixedly mounted at the center of the bottom of the valve plug (61), and a sealing gasket (63) and a sealing ring (64) are fixedly mounted on the outer ring of the bottom of the valve plug (61), and the sealing ring (64) is located outside the sealing gasket (63).

3. A balancing valve according to claim 1, characterized in that: A lower limit block (7) is fixedly installed at the bottom of the valve body (1), an upper limit block (8) is fixedly installed at the top of the valve body (1), and a closing component (9) is fixedly installed between the lower limit block (7) and the upper limit block (8).

4. A balancing valve according to claim 3, characterized in that: The closing component (9) comprises a closing ring (91), wherein the closing ring (91) is fixedly installed between a lower limit block (7) and an upper limit block (8), and a sealing groove (92) is provided on the top outer ring of the closing ring (91), and the size of the sealing groove (92) matches that of the sealing ring (64).

5. A balancing valve according to claim 4, characterized in that: A first connecting column (93) and a second connecting column (95) are fixedly mounted on the upper and lower ends of the inner wall of the closed ring (91), respectively; the first connecting column (93) and the second connecting column (95) are fixedly connected to a first limiting ring (94) and a second limiting ring (96), respectively; the first limiting ring (94) and the second limiting ring (96) are both located at the center of the closed ring (91).

6. A balancing valve according to claim 4, characterized in that: A dirt-cleaning component (10) is movably mounted inside the closed ring (91); the dirt-cleaning component (10) comprises a rotating rod (101); and the rotating rod (101) is movably mounted between a first limiting ring (94) and a second limiting ring (96).

7. A balancing valve according to claim 6, characterized in that: A cross notch (102) is provided at the center of the rotating rod (101), and a brush (103) is provided on the outer surface of the rotating rod (101), and the brush (103) is in contact with the inner wall of the closed ring (91).

8. A balancing valve according to claim 7, characterized in that: The cross slot (102) provided in the rotating rod (101) matches the cross-shaped rod (62), and the cross-shaped rod (62) passes through the rotating rod (101) through the cross slot (102).

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