Balance valve with high sealing performance

Abstract

The balance valve comprises a balance valve body, a first bolt and a valve cover, a first connecting disc is fixedly connected to the inner wall of the upper portion of the balance valve body, a first sealing ring is connected to a through hole of the first connecting disc, a sealing mechanism is installed in the first sealing ring, and a second sealing ring is installed in the first sealing ring. The utility model relates to the technical field of balance valves, a second connecting disc can be arranged below the valve rod, a valve plate is arranged below the second connecting disc, meanwhile, a third sealing ring is arranged on the outer wall of the second connecting disc, and a fourth sealing ring is arranged on the outer wall of the valve plate. In this way, double sealing can be achieved through the third sealing ring and the fourth sealing ring, the sealing performance at the position of the valve plate is improved, meanwhile, the outer wall of the valve rod is sleeved with the first sealing ring, the two ends of the first sealing ring are provided with the blocking discs for blocking, and the sealing performance at the position of the valve rod can be improved.

Description

Technical Field

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

[0002] A balancing valve is a valve with special functions. There is nothing special about the valve itself, except that its function and location are different. In some industries, due to the large pressure difference or flow difference between the media in various parts of 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.

[0003] For example, a balancing valve with publication number CN109357056A has a valve plate vertically arranged in the middle of the inner cavity of the medium channel. When the fluid passes through the medium channel, the impact force of the fluid drives the valve plate to rotate left and right to achieve reflux, which greatly improves the practicality and meets the use requirements.

[0004] The balancing valve is provided with O-rings at the connection between the valve stem, the valve body and the regulating box to achieve sealing. However, since no sealing structure is provided at the valve plate for controlling the flow rate, the valve plate will be damaged by medium corrosion and friction during movement as it is used, thereby reducing the sealing performance. In view of this, it is very necessary to design a balancing valve with high sealing performance to solve this problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a balancing valve with high sealing performance, which solves the problem that the existing balancing valve has no sealing structure at the valve plate for controlling the flow rate. As the valve plate is corroded by the medium and caused by friction during movement during use, it will be damaged, thereby reducing the sealing performance.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a balancing valve with high sealing performance, including a balancing valve body, a first bolt and a valve cover, the valve cover is threadedly connected to the top of the balancing valve body through a plurality of first bolts, a first connecting disk is fixedly connected to the upper inner wall of the balancing valve body, and a first sealing ring is connected to the through hole of the first connecting disk, a sealing mechanism is installed inside the first sealing ring, and a connecting mechanism is installed below the sealing mechanism.

[0007] Preferably, the sealing mechanism includes a valve stem sleeved inside the first sealing ring, a second connecting disk is fixedly connected below the valve stem, and a third sealing ring is fixedly connected to the outer wall of the second connecting disk, and a sleeve fixedly connected to the inner wall of the balancing valve body is fitted on the outer wall of the third sealing ring.

[0008] Preferably, the upper and lower outer walls of the first connecting plate are both threadedly connected to a baffle plate via a plurality of second bolts, and the inner wall of the through hole of the baffle plate is gap-matched with the outer wall of the valve stem.

[0009] Preferably, a screw is threadedly connected to the upper inner portion of the valve stem, and a handle is fixedly connected to the upper surface of the screw.

[0010] Preferably, the connecting mechanism includes a valve plate fixed to the lower surface of the second connecting disk, a fourth sealing ring is fixed to the outer wall of the valve plate, a pair of telescopic rods fixed to the upper surface of the second connecting disk are provided above the valve plate, and the upper outer wall of the telescopic rods is fixed to the interior of the first connecting disk.

[0011] Preferably, connecting flanges are fixedly connected to the left and right sides of the balancing valve body.

[0012] Beneficial Effects

[0013] The utility model provides a balancing valve with high sealing performance, which has the following beneficial effects:

[0014] A second connecting disk can be arranged below the valve stem, and a valve plate can be arranged below the second connecting disk. At the same time, a third sealing ring can be arranged on the outer wall of the second connecting disk, and a fourth sealing ring can be arranged on the outer wall of the valve plate. In this way, double sealing can be achieved through the third sealing ring and the fourth sealing ring, so as to improve the sealing performance of the valve plate. At the same time, a first sealing ring is sleeved on the outer wall of the valve stem, and baffles are arranged at both ends of the first sealing ring for blocking. In this way, the sealing performance of the valve stem can be improved. When adjustment is needed, the handle can be turned to drive the screw to rotate through the handle, so that the screw can drive the valve stem to move, and the valve stem can cooperate with the telescopic rod to drive the second connecting disk to move, so that the second connecting disk drives the valve plate to move, so as to achieve adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a plan cross-sectional view of the utility model.

[0017] Figure 3 It is a partially enlarged schematic diagram of the utility model.

[0018] Figure 4 It is a partially enlarged schematic diagram of the utility model.

[0019] In the figure: 1. balancing valve body; 2. first bolt; 3. valve cover; 4. first connecting plate; 5. first sealing ring; 6. valve stem; 7. second connecting plate; 8. third sealing ring; 9. sleeve; 10. baffle plate; 11. second bolt; 12. screw rod; 13. handle; 14. valve plate; 15. fourth sealing ring; 16. telescopic rod; 17. connecting flange. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 The utility model provides a technical solution: a balancing valve with high sealing performance, comprising a balancing valve body 1, a first bolt 2 and a valve cover 3, wherein the balancing valve body 1 is threadedly connected with the valve cover 3 through a plurality of first bolts 2, a first connecting plate 4 is fixedly connected to the inner wall of the upper part of the balancing valve body 1, and a first sealing ring 5 is connected to the through hole of the first connecting plate 4, a sealing mechanism is installed inside the first sealing ring 5, and a connecting mechanism is installed below the sealing mechanism;

[0022] A through hole may be processed inside the first connecting disk 4 , and a first sealing ring 5 may be arranged at the through hole, so that the connection between the valve stem 6 and the first connecting disk 4 can be sealed by the first sealing ring 5 .

[0023] This embodiment is further configured such that the sealing mechanism includes a valve stem 6 sleeved with the inside of the first sealing ring 5, a second connecting plate 7 is fixedly connected to the lower part of the valve stem 6, and a third sealing ring 8 is fixedly connected to the outer wall of the second connecting plate 7, and a sleeve 9 fixedly connected to the inner wall of the balancing valve body 1 is attached to the outer wall of the third sealing ring 8;

[0024] A third sealing ring 8 may be provided on the outer wall of the second connecting disk 7 , and a sleeve 9 may be provided on the outer wall of the third sealing ring 8 , so that the sealing performance at the second connecting disk 7 can be improved by the sleeve 9 and the third sealing ring 8 .

[0025] This embodiment is further configured such that the upper and lower outer walls of the first connecting plate 4 are both threadedly connected with a baffle plate 10 through a plurality of second bolts 11, and the inner wall of the through hole of the baffle plate 10 is gap-matched with the outer wall of the valve stem 6;

[0026] A through hole may be processed inside the baffle 10, so that the valve stem 6 can move conveniently through the through hole.

[0027] This embodiment is further configured such that a screw rod 12 is threadedly connected to the upper inner portion of the valve stem 6 , and a handle 13 is fixedly connected to the upper surface of the screw rod 12 .

[0028] This embodiment is further configured such that the connection mechanism includes a valve plate 14 fixedly connected to the lower surface of the second connection plate 7, a fourth sealing ring 15 is fixedly connected to the outer wall of the valve plate 14, a pair of telescopic rods 16 fixedly connected to the upper surface of the second connection plate 7 are provided above the valve plate 14, and the upper outer wall of the telescopic rods 16 is fixedly connected to the inside of the first connection plate 4;

[0029] A pair of telescopic rods 16 may be provided above the second connection plate 7, so that the telescopic rods 16 can limit the second connection plate 7 and enable it to move stably.

[0030] This embodiment is further configured such that connection flanges 17 are fixedly connected to the left and right sides of the balancing valve body 1 .

[0031] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0032] Embodiment: When it is necessary to use this device, a second connecting disk 7 can be arranged below the valve stem 6, and a valve plate 14 can be arranged below the second connecting disk 7. At the same time, a third sealing ring 8 can be arranged on the outer wall of the second connecting disk 7, and a fourth sealing ring 15 can be arranged on the outer wall of the valve plate 14. In this way, double sealing can be achieved through the third sealing ring 8 and the fourth sealing ring 15, thereby improving the sealing performance at the valve plate 14. At the same time, a first sealing ring 5 is sleeved on the outer wall of the valve stem 6, and baffles 10 are arranged at both ends of the first sealing ring 5 for blocking, thereby improving the sealing performance at the valve stem 6. When adjustment is required, the handle 13 can be rotated, and the handle 13 can drive the screw rod 12 to rotate, so that the screw rod 12 can drive the valve stem 6 to move, and the valve stem 6 can cooperate with the telescopic rod 16 to drive the second connecting disk 7 to move, so that the second connecting disk 7 drives the valve plate 14 to move, thereby achieving adjustment.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A balancing valve with high sealing performance, comprising a balancing valve body (1), a first bolt (2) and a valve cover (3), wherein the valve cover (3) is threadedly connected to the upper side of the balancing valve body (1) via a plurality of first bolts (2), and characterized in that: A first connection disk (4) is fixedly connected to the upper inner wall of the balancing valve body (1), and a first sealing ring (5) is connected to the through hole of the first connection disk (4). A sealing mechanism is installed inside the first sealing ring (5), and a connecting mechanism is installed below the sealing mechanism.

2. A balancing valve with high sealing performance according to claim 1, characterized in that: The sealing mechanism comprises a valve stem (6) sleeved inside a first sealing ring (5), a second connecting plate (7) being fixedly connected below the valve stem (6), and a third sealing ring (8) being fixedly connected to an outer wall of the second connecting plate (7), and a sleeve (9) being fixedly connected to an inner wall of a balancing valve body (1) being fitted on an outer wall of the third sealing ring (8).

3. A balancing valve with high sealing performance according to claim 1, characterized in that: The upper and lower outer walls of the first connecting plate (4) are both threadedly connected to a baffle plate (10) via a plurality of second bolts (11), and the inner wall of the through hole of the baffle plate (10) is gap-matched with the outer wall of the valve stem (6).

4. A balancing valve with high sealing performance according to claim 2, characterized in that: The upper inner portion of the valve stem (6) is threadedly connected to a screw rod (12), and the upper surface of the screw rod (12) is fixedly connected to a handle (13).

5. A balancing valve with high sealing performance according to claim 1, characterized in that: The connection mechanism comprises a valve plate (14) fixedly connected to the lower surface of the second connection disk (7), a fourth sealing ring (15) being fixedly connected to the outer wall of the valve plate (14), a pair of telescopic rods (16) fixedly connected to the upper surface of the second connection disk (7) being provided above the valve plate (14), and the upper outer walls of the telescopic rods (16) being fixedly connected to the interior of the first connection disk (4).

6. A balancing valve with high sealing performance according to claim 1, characterized in that: The left and right sides of the balancing valve body (1) are fixedly connected with connecting flanges (17).

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