Angular travel valve opening detector

Abstract

The utility model relates to the technical field of valves, in particular to an angular travel valve opening degree detector, which mainly solves the problem that the valve opening angles of 90-degree angular travel valves such as biased semi-ball valves and butterfly valves in the prior art are difficult to accurately control, and comprises a valve body, a valve rod, a worm and gear mechanism, a hand wheel, a valve clack, a connecting rod and an angle monitoring mechanism, the valve body comprises an upper valve body and a lower valve body which are connected in a locking mode, the lower valve body is provided with a channel for liquid circulation, the valve rod is rotatably arranged on the lower valve body, the upper end of the valve clack is connected with the lower end of the valve rod, the lower end of the valve clack is rotatably arranged on the lower valve body through a connecting rod, and a through hole is formed in the upper surface of the upper valve body and located at the position of the valve rod. The angle monitoring mechanism is arranged at the through hole and comprises a shell embedded in the through hole, a cover covering the shell, an encoder arranged at the upper end of the valve rod, a battery, a controller and a wireless connection module, the battery, the encoder and the wireless connection module are arranged in the shell, and the battery, the encoder and the wireless connection module are electrically connected with the controller.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an opening degree detector for angular travel valves. Background Art

[0002] The existing eccentric semi-ball valve structure, such as the patent application number CN202320223676.1 applied for by the applicant: Shanghai Aviation Technology Group Co., Ltd. on February 15, 2023, the patent name is an eccentric semi-ball valve, which specifically discloses a valve body, a ball rotatably installed inside the valve body, and an opening and closing member for controlling the rotation of the ball in the valve body. The inner wall of one opening of the valve body is provided with a retaining ring protruding outward, and a valve seat is installed on the side of the retaining ring close to the inside of the valve body through a plurality of connecting bolts. A plurality of fixing bolts are threadedly installed on the retaining ring, and the end of each fixing bolt abuts against the valve seat to adjust the gap between the valve seat and the retaining ring. A ball crown is installed on the surface of the ball, and a sealing member is embedded in the valve seat to cooperate with the ball crown to achieve sealing.

[0003] When in use, the handwheel is manually turned to drive the rotating rod to rotate, and then the ball is driven to rotate through the valve stem to achieve the opening and closing of the valve. Since the connecting rod and the valve stem are usually connected by a worm gear mechanism, for a large eccentric semi-ball valve structure, the handwheel needs to be turned several times to achieve the valve from a fully open state to a fully closed state. This makes it difficult for the operator to accurately control the opening angle of the valve, and the operation convenience is poor. Utility Model Content

[0004] Therefore, in view of the above problems, the utility model provides an angular stroke valve opening detector, which mainly solves the problem in the prior art that the opening angle of 90-degree angular stroke valves such as hemispherical valves and butterfly valves is difficult to accurately control.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A angular stroke valve opening detector comprises a valve body, a valve stem, a worm gear mechanism, a hand wheel, a valve disc, a connecting rod and an angle monitoring mechanism, wherein the valve body comprises an upper valve body and a lower valve body which are locked and connected, the lower valve body has a channel for liquid circulation, the valve stem is rotatably arranged on the lower valve body, and the upper end of the valve stem passes through the upper valve body, the worm gear mechanism is arranged in the upper valve body and connected to the upper end of the valve stem, the hand wheel is arranged at the free end of the worm gear, the valve disc is distributed in the channel, and the upper end of the valve disc is connected to the lower end of the valve stem, the lower end of the valve disc is rotatably arranged on the lower valve body through the connecting rod, a through hole is provided on the upper surface of the upper valve body and at the valve stem, the angle monitoring mechanism is arranged at the through hole, the angle monitoring mechanism comprises a shell arranged at the through hole, a cover body covered on the shell, an encoder arranged at the upper end of the valve stem, and a battery, a controller and a wireless connection module arranged in the shell, the battery, the encoder and the wireless connection module are electrically connected to the controller respectively.

[0007] Furthermore, the angle monitoring mechanism also includes a display screen, and the display screen is electrically connected to the controller.

[0008] Furthermore, the angle monitoring mechanism also includes a GPS module, and the GPS module is electrically connected to the controller.

[0009] Furthermore, a mounting seat with an annular structure is connected to the valve body at the channel through a locking bolt, and the mounting seat is provided with an annular groove on one side surface facing the valve disc, and a plurality of threaded holes are penetrated around the bottom surface of the annular groove, and the locking bolts are distributed at the threaded holes. An elastic gasket is embedded in the annular groove, and when the eccentric hemispheric valve is closed, the elastic gasket rests against the valve disc.

[0010] Furthermore, the inner end of the locking bolt is embedded in the annular groove and abuts against the bottom surface of the elastic washer.

[0011] Furthermore, the elastic gasket has a first inclined surface that cooperates with the spherical valve flap, and the mounting seat has a second inclined surface that cooperates with the spherical valve flap.

[0012] By adopting the above-mentioned technical scheme, the beneficial effects of the utility model are as follows: in the angular stroke valve opening detector, the operator drives the worm gear mechanism to move by turning the handwheel, thereby driving the valve stem to rotate, so that the valve disc is opened or closed, and at the same time, when the valve stem rotates, the encoder on the valve stem detects the rotation angle of the valve stem, and transmits the detection data to the controller, and then transmits it to the main controller through the wireless connection module, so as to realize the monitoring of the rotation angle of the valve stem, so that the operator can accurately control the valve opening angle of the eccentric hemispherical valve, thereby improving the convenience of use, and, by opening a through hole on the valve body and at the valve stem, and arranging the shell at the through hole, it is convenient to install the encoder, and the arrangement of the controller, battery and wireless connection module can be improved on the basis of the structure of the traditional valve, thereby reducing the production cost of the valve and increasing the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a partial cross-sectional structural schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the top view of the valve body and the worm gear mechanism in the embodiment of the utility model;

[0015] Figure 3 yes Figure 1 A partial enlarged view of the middle A;

[0016] Figure 4 It is a circuit module diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0018] The utility model embodiment is:

[0019] refer to Figures 1 to 4As shown, an angular stroke valve opening detector includes a valve body 1, a valve stem 2, a worm gear mechanism 3, a handwheel 4, a valve flap 5, a connecting rod 6 and an angle monitoring mechanism 7. The valve body 1 includes an upper valve body 11 and a lower valve body 12 which are locked and connected. The lower valve body 12 has a channel 13 for liquid circulation. The valve stem 2 is rotatably arranged on the lower valve body 12, and the upper end of the valve stem 2 passes through the upper valve body 11. The worm gear mechanism 3 is arranged in the upper valve body 11 and connected to the upper end of the valve stem 2. The handwheel 4 is arranged at the free end of the worm gear 3. The valve flap 5 is distributed in the channel 13, and The upper end of the valve flap 5 is connected to the lower end of the valve stem 2, and the lower end of the valve flap 5 can be rotatably disposed on the lower valve body 12 through the connecting rod 6. A through hole 8 is provided on the upper surface of the upper valve body 11 and located at the valve stem 2. The angle monitoring mechanism 7 is disposed at the through hole 8. The angle monitoring mechanism 8 includes a shell 71 disposed at the through hole 8, a cover body 72 covered on the shell 71, an encoder 73 disposed at the upper end of the valve stem 2, and a battery 74, a controller 75 and a wireless connection module 76 disposed in the shell 71. The battery 74, the encoder 73 and the wireless connection module 76 are electrically connected to the controller 75, respectively.

[0020] The present embodiment is a manually adjustable eccentric semi-ball valve, but it can also be a butterfly valve.

[0021] In the present angular stroke valve opening detector, the operator drives the worm gear mechanism 3 to move by turning the hand wheel 4, thereby driving the valve stem 2 to rotate, so that the valve flap 5 is opened or closed. At the same time, when the valve stem 2 rotates, the encoder 73 on the valve stem detects the rotation angle of the valve stem 2, and transmits the detection data to the controller 75, and then transmits it to the main controller through the wireless connection module 76, so as to monitor the rotation angle of the valve stem 2, so that the operator can accurately control the valve opening angle of the eccentric hemispherical valve, thereby improving the convenience of use. In addition, by opening a through hole 8 on the valve body 1 and located at the valve stem 2, and arranging the shell 71 at the through hole 8, it is convenient to install the encoder 73, and the controller 75, the battery 74 and the wireless connection module 76 are arranged, which can be improved on the basis of the structure of the traditional valve, reduce the production cost of the valve equipment, and increase the convenience of use.

[0022] In addition, the angle monitoring mechanism 7 also includes a display screen 77, and the display screen 77 is electrically connected to the controller 75, which is convenient for the operator to observe the valve opening angle of the eccentric hemispherical valve on site and improve the convenience of operation. Furthermore, the angle monitoring mechanism 7 also includes a GPS module 78, and the GPS module 78 is electrically connected to the controller 75, which is convenient for finding the eccentric hemispherical valve equipment, which is beneficial to the rapid repair of the equipment and improves safety.

[0023] In this embodiment, the valve body 1 is connected to a mounting seat 10 of an annular structure at the passage 13 through a locking bolt 9. The mounting seat 10 is provided with an annular groove 20 on one side facing the valve disc 5. A plurality of threaded holes 21 are penetrated around the bottom surface of the annular groove 20. The locking bolts 9 are distributed at the threaded holes 21. An elastic washer 22 is embedded in the annular groove 20. When the eccentric hemispherical valve is closed, the elastic washer 22 abuts against the valve disc 5. The inner end of the locking bolt 9 is embedded in the annular groove 20 and abuts against the elastic washer 22. 2, the elastic gasket 22 has a first inclined surface 23 that cooperates with the spherical valve disc 5, the mounting seat 10 has a second inclined surface 24 that cooperates with the spherical valve disc 5, the mounting seat 10 is fixed to the valve body 1 by the locking bolt 9, and the elastic gasket 22 is squeezed by the locking bolt 9, so that the size of the elastic gasket 22 protruding from the annular groove can be adjusted, thereby improving the fit with the valve disc 5, thereby improving the sealing effect, and the first inclined surface 23 and the second inclined surface 24 are further provided to improve the fit with the valve disc 5, thereby improving the sealing performance.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An angle-turn valve opening detector, characterized in that: The utility model comprises a valve body, a valve stem, a worm gear mechanism, a handwheel, a valve disc, a connecting rod and an angle monitoring mechanism, wherein the valve body comprises an upper valve body and a lower valve body which are locked and connected, the lower valve body has a channel for liquid circulation, the valve stem is rotatably arranged on the lower valve body, and the upper end of the valve stem passes through the upper valve body, the worm gear mechanism is arranged in the upper valve body and connected to the upper end of the valve stem, the handwheel is arranged at the free end of the worm gear, the valve disc is distributed in the channel, and the upper end of the valve disc is connected to the lower end of the valve stem, the lower end of the valve disc is rotatably arranged on the lower valve body through the connecting rod, a through hole is arranged on the upper surface of the upper valve body and at the valve stem, the angle monitoring mechanism is arranged at the through hole, the angle monitoring mechanism comprises a shell arranged at the through hole, a cover body covered on the shell, an encoder arranged at the upper end of the valve stem, and a battery, a controller and a wireless connection module arranged in the shell, and the battery, the encoder and the wireless connection module are electrically connected to the controller respectively.

2. The angular stroke valve opening detector according to claim 1, characterized in that: The angle monitoring mechanism also includes a display screen, and the display screen is electrically connected to the controller.

3. The angular stroke valve opening detector according to claim 1, characterized in that: The angle monitoring mechanism also includes a GPS module, and the GPS module is electrically connected to the controller.

4. The angular stroke valve opening detector according to any one of claims 1 to 3, characterized in that: A mounting seat with an annular structure is connected to the valve body and located at the channel through locking bolts. The mounting seat is provided with an annular groove on one side surface facing the valve disc, and a plurality of threaded holes are penetrated around the bottom surface of the annular groove. The locking bolts are distributed at the threaded holes, and an elastic gasket is embedded in the annular groove. When the eccentric hemispherical valve is closed, the elastic gasket rests on the valve disc.

5. The angular stroke valve opening detector according to claim 4, characterized in that: The inner end of the locking bolt is embedded in the annular groove and abuts against the bottom surface of the elastic washer.

6. The angular stroke valve opening detector according to claim 5, characterized in that: The elastic gasket has a first inclined surface matched with the spherical valve flap, and the mounting seat has a second inclined surface matched with the spherical valve flap.

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