Novel precision eccentric rotary regulating valve

Abstract

The utility model discloses a novel precision eccentric rotary regulating valve which comprises a valve body, a regulating valve channel is arranged at the bottom end of the valve body, an upper guide sleeve and a lower guide sleeve are fixedly installed on the inner wall of the top end and the inner wall of the bottom end of the regulating valve channel respectively, a valve rod is connected between the upper guide sleeve and the lower guide sleeve in a rotating mode, and a valve element is fixedly installed on the outer wall of the valve rod. The valve element is arranged to be in an eccentric cam shape, the valve element is used for controlling opening and closing of the adjusting valve channels in a rotating mode, and a crank arm used for rotating the valve rod is fixedly installed on the outer wall of the top of the valve rod. The impact force in the regulating valve channel is small, abrasion to the inner channel of the regulating valve channel is small, and the service life can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a novel precision eccentric rotary regulating valve. Background Art

[0002] In industrial production and fluid delivery systems, regulating valves play a vital role. Traditional regulating valves often have problems such as low adjustment accuracy, poor sealing, and easy wear during use, which affects production efficiency and system stability. Existing regulating valves are generally in the form of ball valves. When controlling the opening and closing of the regulating valve, it is usually necessary to rotate the valve stem so that the valve stem drives the ball valve to rotate and control the regulating valve to rotate the inner wall of the valve body, so that the fluid is conducted or cut off under the action of the ball valve. The traditional valve core and the valve body have greater wear when rotating, and the flow channel is generally not on the same plane. When the fluid passes through, it is easy to generate certain noise. At the same time, it has a greater impact force on the inner wall of the valve body, causing greater wear, which is not conducive to improving the service life. Utility Model Content

[0003] The purpose of the utility model is to provide a novel precision eccentric rotary regulating valve to solve the problems raised in the above background technology.

[0004] A hydraulic actuator with a clutch device includes a valve body, the bottom end of the valve body is a regulating valve channel, the top and bottom inner walls of the regulating valve channel are respectively fixedly mounted with an upper guide sleeve and a lower guide sleeve, the upper guide sleeve and the lower guide sleeve are rotatably connected between the valve stem, the outer wall of the valve stem is fixedly mounted with a valve core, the valve core is configured as an eccentric cam, the valve core is used for rotating and controlling the opening and closing of the regulating valve channel, and the top outer wall of the valve stem is fixedly mounted with a crank arm for rotating the valve stem.

[0005] In a preferred embodiment of the present invention, a valve seat is fixedly installed on the inner wall of the output end of the regulating valve channel, the valve core and the valve seat are sealed together, and the connection between the outer wall of the valve seat and the inner wall of the regulating valve channel is fixedly connected by a pressure ring nut.

[0006] In a preferred embodiment of the present invention, a lower gasket is installed at the connection between the inner wall of the top end of the valve body and the outer wall of the valve stem, and a filler is installed above the lower gasket.

[0007] In a preferred embodiment of the present invention, the inner wall of the packing is rotatably connected to the outer wall of the valve stem, and a packing gland is installed above the packing.

[0008] In a preferred embodiment of the present invention, the outer wall of the top of the valve body is fixedly mounted with a packing pressure plate by means of packing bolts, and the outer wall of the packing bolts is threadedly connected to a packing nut.

[0009] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model.

[0010] 1. The valve core is set in the shape of an eccentric cam, which is convenient for improving the flexibility when rotating the valve core, can effectively reduce wear, increase the sealing performance, and is convenient for controlling the valve core through the crank arm to quickly rotate and adjust the position, so as to conveniently improve the stability of the equipment during use, improve the working efficiency and the safety of use, and is convenient for quickly truncating and conducting the regulating valve channel inside the valve body.

[0011] 2. By arranging the regulating valve channels on the left and right in the same plane, the internal structure of the regulating valve channels is simple. When the fluid passes through, the impact force inside the regulating valve channels is small, and the wear on the internal channels of the regulating valve channels is also small, which is beneficial to improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0013] Figure 1 It is a schematic cross-sectional structure diagram of a hydraulic actuator with a clutch device;

[0014] Figure 2 It is a schematic packing installation structure diagram of a hydraulic actuator with a clutch device;

[0015] Figure 3 It is a schematic valve core installation structure diagram of a hydraulic actuator with a clutch device.

[0016] In the figure: valve body 1, lower guide sleeve 2, valve seat 3, valve core 4, gland nut 5, upper guide sleeve 6, valve stem 7, lower gasket 8, packing 9, packing gland 10, packing plate 11, packing nut 12, packing bolt 13, crank arm 14. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0018] Embodiment 1: As Figures 1 - 3, including a valve body 1, the bottom end of the valve body 1 is a regulating valve channel, the upper guide sleeve 6 and the lower guide sleeve 2 are fixedly installed on the inner walls of the top and bottom ends of the regulating valve channel respectively, the upper guide sleeve 6 and the lower guide sleeve 2 are rotatably connected between the valve stem 7, the outer wall of the valve stem 7 is fixedly installed with a valve core 4, the valve core 4 is set to an eccentric cam shape, the valve core 4 is used to rotate and control the opening and closing of the regulating valve channel, and the outer wall of the top of the valve stem 7 is fixedly installed with a crank arm 14 for rotating the valve stem 7.

[0019] The specific usage scenario of this embodiment is: by setting a regulating valve channel for installing the valve core 4 and the valve seat 3, by setting the valve core 4 to an eccentric cam shape, the flexibility of rotating the valve core 4 is conveniently improved, which can effectively reduce wear and increase sealing performance, and facilitate the rapid rotation and position adjustment of the valve core 4 by controlling the crank arm 14, thereby facilitating the improvement of the stability of the equipment during use, improving work efficiency and safety of use, and facilitating the rapid cutting off and opening of the regulating valve channel inside the valve body 1.

[0020] Example 2: Figure 3 , including a valve body 1, the bottom end of the valve body 1 is a regulating valve channel, the upper guide sleeve 6 and the lower guide sleeve 2 are fixedly installed on the inner walls of the top and bottom ends of the regulating valve channel respectively, the upper guide sleeve 6 and the lower guide sleeve 2 are rotatably connected between the valve stem 7, the outer wall of the valve stem 7 is fixedly installed with a valve core 4, the valve core 4 is set in an eccentric cam shape, the valve core 4 is used to rotate and control the opening and closing of the regulating valve channel, the outer wall of the valve stem 7 is fixedly installed with a crank arm 14 for rotating the valve stem 7, the inner wall of the output end of the regulating valve channel is fixedly installed with a valve seat 3, the valve core 4 and the valve seat 3 are sealed together, and the connection between the outer wall of the valve seat 3 and the inner wall of the regulating valve channel is fixedly connected by a pressure ring nut 5.

[0021] The specific usage scenario of this embodiment is: by setting the valve seat 3 for cooperating and rotating with the valve core 4, the opening between the valve core 4 and the valve seat 3 is adjusted, thereby facilitating the adjustment of the passage of the valve body 1 and flexibly controlling the opening and closing of the valve body 1. By setting the pressure ring nut 5 for tightly fitting the valve seat 3 and the valve body 1, the safety of the equipment is improved.

[0022] Example 3: Figure 2, including a valve body 1. The bottom end of the valve body 1 is a regulating valve passage. Upper guide sleeves 6 and lower guide sleeves 2 are fixedly installed on the inner walls of the top and bottom ends of the regulating valve passage respectively. A valve stem 7 is rotatably connected between the upper guide sleeve 6 and the lower guide sleeve 2. A valve core 4 is fixedly installed on the outer wall of the valve stem 7. The valve core 4 is set in an eccentric cam shape and is used to rotate and control the opening and closing of the regulating valve passage. A crank arm 14 for rotating the valve stem 7 is fixedly installed on the outer wall of the top of the valve stem 7. A lower gasket 8 is installed at the connection between the inner wall of the top end of the valve body 1 and the outer wall of the valve stem 7. A packing 9 is installed above the lower gasket 8. The inner wall of the packing 9 is rotatably connected with the outer wall of the valve stem 7. A packing gland 10 is installed above the packing 9. The outer wall of the top of the valve body 1 is fixedly installed with a packing pressing plate 11 through a packing bolt 13. The outer wall of the packing bolt 13 is threadedly connected with a packing nut 12.

[0023] The specific usage scenario of this embodiment is as follows: By setting the lower gasket 8 and the packing 9 to be used in combination, it can reduce the friction between the inner wall of the valve body 1 and the valve stem 7, and at the same time, it can also improve the sealing effect between the valve stem 7 and the inner wall of the valve body 1, improving the anti-leakage effect. By setting the packing gland 10 and the packing pressing plate 11 to cooperate to press the top of the packing 9, it can avoid the phenomenon of leakage at the packing 9, improving the compressive resistance effect at the packing 9. By setting the packing nut 12 and the packing bolt 13 to cooperate for bolt connection, it is convenient to improve the compressive resistance effect.

[0024] The working principle of the present utility model is as follows: When those skilled in the art use it, the upper guide sleeve 6 and the lower guide sleeve 2 are installed in cooperation on the inner walls of the top and bottom ends of the regulating valve passage in the valve body 1, and then the valve stem 7 is installed on the inner walls of the upper guide sleeve 6 and the lower guide sleeve 2, so that the valve stem 7 is rotatably connected with the inner wall of the valve body 1. Then the valve core 4 is installed on the outer wall of the bottom end of the valve stem 7, so that the valve core 4 is located in the regulating valve passage. The valve seat 3 is inserted and installed on the inner wall of the output end inside the valve body 1, and then the valve seat 3 and the valve body 1 are fixed through a retaining ring nut 5. Then the lower gasket 8 is sleeved on the outer wall of the top of the valve stem 7, and the lower gasket 8 is pressed downward along the valve body 1 so that the lower gasket 8 is stuck in the inner wall of the top of the valve body 1. Then the packing 9 is wound around the outer wall of the valve stem 7, and the packing 9 is used for rotational sealing of the outer walls of the valve body 1 and the valve stem 7. Then the packing gland 10 is sleeved on the outer wall of the valve stem 7 to press the top of the packing 9. Then the packing pressing plate 11 is fixedly connected through the cooperation of the packing bolt 13 and the packing nut 12. Subsequently, the crank arm 14 is installed on the outer wall of the valve stem 7, and by holding the crank arm 14 and rotating it, the valve stem 7 is driven to rotate, so that the moving valve stem 7 drives the valve core 4 to rotate, causing the valve core 4 to disengage from the valve seat 3, thereby opening the passage of the regulating valve passage and controlling the opening and closing of the regulating valve passage.

[0025] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A novel precision eccentric rotary control valve, comprising a valve body (1), the bottom end of the valve body (1) being a control valve passage, and an upper guide sleeve (6) and a lower guide sleeve (2) being fixedly installed on the inner walls of the top end and the bottom end of the control valve passage respectively, characterized in that, The upper guide sleeve (6) and the lower guide sleeve (2) are rotatably connected to the valve stem (7), and a valve core (4) is fixedly installed on the outer wall of the valve stem (7). The valve core (4) is configured to be in the shape of an eccentric cam. The valve core (4) is used for rotationally controlling the opening and closing of the regulating valve channel. A crank arm (14) for rotating the valve stem (7) is fixedly installed on the outer wall of the top of the valve stem (7).

2. A novel precision eccentric rotary control valve according to claim 1, characterized in that, A valve seat (3) is fixedly mounted on the inner wall of the output end of the regulating valve channel, the valve core (4) and the valve seat (3) are sealed in cooperation, and the outer wall of the valve seat (3) and the inner wall of the regulating valve channel are fixedly connected via a pressure ring nut (5).

3. A novel precision eccentric rotary control valve according to claim 1, characterized in that, A lower gasket (8) is installed at the connection between the inner wall of the top end of the valve body (1) and the outer wall of the valve stem (7), and a filler (9) is installed above the lower gasket (8).

4. A novel precision eccentric rotary control valve according to claim 3, characterized in that, The inner wall of the packing (9) is rotatably connected to the outer wall of the valve stem (7), and a packing gland (10) is installed above the packing (9).

5. A novel precision eccentric rotary control valve according to claim 4, characterized in that, The outer wall of the top of the valve body (1) is fixedly mounted with a packing pressure plate (11) through a packing bolt (13), and the outer wall of the packing bolt (13) is threadedly connected to a packing nut (12).

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