A high-tightness stop valve specially used for oxygen tanks

Abstract

The utility model discloses a high-sealing stop valve for oxygen tanks, including a valve body, an automatic switch mechanism and a connecting mechanism; a ball is rotatably connected inside the valve body, a valve stem is provided at the middle of the upper end of the ball, a dial wheel is fixedly connected to the upper end of the valve stem, connecting pipes are provided at the left and right ends of the valve body, and a protective cover is provided at the upper end of the valve body; the automatic switch mechanism is arranged inside the protective cover, and the automatic switch mechanism and the middle part of the valve stem are fixedly sleeved; the connecting mechanism is respectively arranged at the connecting ends of the two connecting pipes, a single-chip microcomputer is provided at the upper end of the protective cover, a signal transceiver is provided at the right side of the upper end of the protective cover, the input end of the single-chip microcomputer is electrically connected to an external power supply, the signal transceiver and the single-chip microcomputer, and the automatic switch mechanism includes a rotating shaft, a gear one and a gear two. The high-sealing stop valve for oxygen tanks is easy to install and disassemble, has good airtightness, and is convenient for remotely controlling the switch of the stop valve.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a high-sealing stop valve specially used for oxygen tanks. Background Art

[0002] The stop valve, also called the cut-off valve, is one of the most widely used valves. The reason why it is so popular is that the friction between the sealing surfaces during opening and closing is small, it is relatively durable, the opening height is not large, it is easy to manufacture and maintain, and it is not only suitable for medium and low pressures, but also for high pressures. The closing principle of the stop valve is to rely on the valve stem pressure to make the valve disc sealing surface and the valve seat sealing surface fit tightly to prevent the flow of the medium. my country's valve "three-in-one" regulations have stipulated that the flow direction of the stop valve should be from top to bottom, so it has directionality during installation. The structural length of the stop valve is greater than that of the gate valve, and the fluid resistance is large. During long-term operation, the sealing reliability is not strong.

[0003] Some existing stop valves fix the pipe body at both ends of the stop valve, which usually has the following problems: poor airtightness, and it takes a lot of time and effort to disassemble the stop valve. Therefore, a high-sealing stop valve specially used for oxygen tanks is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a high-sealing stop valve specially used for oxygen tanks, which is easy to install and disassemble, reduces the consumption of time and energy, has good airtightness, and is convenient for remotely controlling the switch of the stop valve, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-sealing stop valve for oxygen tanks, comprising a valve body, an automatic switch mechanism and a connecting mechanism;

[0006] A ball is rotatably connected inside the valve body, a valve stem is provided in the middle of the upper end of the ball, a dial wheel is fixedly connected to the upper end of the valve stem, connecting pipes are provided at the left and right ends of the valve body respectively, and a protective cover is provided at the upper end of the valve body;

[0007] The automatic switch mechanism is arranged inside the protective cover, and the automatic switch mechanism is fixedly sleeved with the middle part of the valve stem;

[0008] The connecting mechanisms are respectively arranged at the connecting ends of the two connecting pipes, which is convenient for installation and disassembly, reduces the consumption of time and energy, has good airtightness, and is convenient for remotely controlling the switch of the stop valve.

[0009] Furthermore, a single chip microcomputer is provided at the upper end of the protective cover, and a signal transceiver is provided on the right side of the upper end of the protective cover. The input end of the single chip microcomputer is electrically connected to an external power supply, and the signal transceiver is bidirectionally electrically connected to the single chip microcomputer to provide electrical connections for various electrical appliances.

[0010] Furthermore, the automatic switch mechanism includes a rotating shaft, gear one and gear two. The rotating shaft is rotatably connected to the bottom wall of the protective cover. The middle part of the rotating shaft is fixedly sleeved with gear one, and gear two is fixedly sleeved in the middle part of the valve stem. Gear one is meshed and connected with gear two for easy rotation.

[0011] Furthermore, the automatic switch mechanism also includes a motor, which is arranged on the top wall of the protective cover, the lower end of the output shaft of the motor is fixedly connected to the upper end of the rotating shaft, and the input end of the motor is electrically connected to the output end of the single-chip microcomputer to provide rotational drive.

[0012] Furthermore, the connecting mechanism includes an internal threaded sleeve and a threaded connecting pipe, the internal threaded sleeves are movably sleeved on the connecting ends of the connecting pipes, and the interiors of the internal threaded sleeves are threadedly connected with the threaded connecting pipes for easy connection.

[0013] Furthermore, the connection mechanism also includes a sealing gasket, which is respectively arranged between the connection end of the threaded connection pipe and the connection end of the threaded connection pipe to provide sealing.

[0014] Furthermore, the connecting mechanism also includes a fixing ring, a vertical plate and a fixing bolt. The outside of the internal threaded sleeve is provided with front and rear symmetrical fixing rings, and the upper and lower ends of the fixing ring are provided with vertical plates. The two adjacent front and rear vertical plates are fixedly connected by fixing bolts for easy fixation.

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

[0016] 1. When installing the stop valve on the oxygen tank, first place the sealing gasket between the threaded connection pipe and the connection pipe, then align the threaded connection pipe with the connection pipe, then rotate the internal threaded sleeve to the outside of the threaded connection, then put the fixing ring on the outside of the internal threaded sleeve, and then fix it with the fixing bolts to make it more sealed. During the installation process of the cut-off adjustment of the oxygen tank, it is easy to install and disassemble, reduce the consumption of time and energy, and have better airtightness;

[0017] 2. When the stop valve needs to be remotely controlled, it is controlled by a remote controller. With the support of a wireless network, the signal is transmitted to the signal transceiver. The signal transceiver transmits the command to the single-chip microcomputer for integration. The single-chip microcomputer is controlled and the motor runs. The output shaft of the motor drives the rotating shaft to rotate. The rotation of the rotating shaft drives gear one to rotate. Gear one drives the meshing gear two to rotate, thereby driving the valve stem to rotate. The rotation of the valve stem drives the ball to rotate. When the ball rotates ninety degrees, the stop valve opens, the single-chip microcomputer is controlled, and the motor stops running. When it needs to be closed, the single-chip microcomputer is controlled, the motor continues to run, the ball rotates ninety degrees, and the stop valve is closed. During the use of the cut-off adjustment of the oxygen tank, it is convenient to remotely control the switch of the stop valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0021] Figure 4 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0022] In the figure: 1 valve body, 2 ball, 3 valve stem, 4 dial wheel, 5 connecting pipe, 6 protective cover, 7 automatic switch mechanism, 71 motor, 72 rotating shaft, 73 gear 1, 74 gear 2, 8 connecting mechanism, 81 internal thread sleeve, 82 sealing gasket, 83 threaded connecting pipe, 84 fixing ring, 85 vertical plate, 86 fixing bolt, 9 single chip microcomputer, 10 signal transceiver. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 This embodiment provides a high-sealing stop valve for oxygen tanks, including a valve body 1, an automatic switch mechanism 7 and a connecting mechanism 8.

[0025] Among them, a ball 2 is rotatably connected inside the valve body 1, a valve stem 3 is provided in the middle of the upper end of the ball 2, a dial wheel 4 is fixedly connected to the upper end of the valve stem 3, connecting pipes 5 are respectively provided at the left and right ends of the valve body 1, a protective cover 6 is provided at the upper end of the valve body 1, a single-chip microcomputer 9 is provided at the upper end of the protective cover 6, a signal transceiver 10 is provided on the right side of the upper end of the protective cover 6, the input end of the single-chip microcomputer 9 is electrically connected to an external power supply, and the signal transceiver 10 is bidirectionally electrically connected to the single-chip microcomputer 9.

[0026] Among them, the automatic switch mechanism 7 is arranged inside the protective cover 6, and the automatic switch mechanism 7 is fixedly sleeved with the middle part of the valve stem 3. The automatic switch mechanism 7 includes a rotating shaft 72, a gear 1 73 and a gear 2 74. The rotating shaft 72 is rotatably connected to the bottom wall of the protective cover 6, and the middle part of the rotating shaft 72 is fixedly sleeved with a gear 1 73, and the gear 2 74 is fixedly sleeved in the middle part of the valve stem 3. The gear 1 73 is meshed with the gear 2 74; the automatic switch mechanism 7 also includes a motor 71, and the motor 71 is arranged on the top wall of the protective cover 6. The lower end of the output shaft of the motor 71 is fixedly connected to the upper end of the rotating shaft 72, and the input end of the motor 71 is electrically connected to the output end of the single-chip microcomputer 9.

[0027] Among them, the connecting mechanism 8 is respectively arranged at the connecting ends of the two connecting pipes 5, and the connecting mechanism 8 includes an internal threaded sleeve 81 and a threaded connecting pipe 83. The internal threaded sleeve 81 is movably sleeved on the connecting ends of the connecting pipe 5, and the inside of the internal threaded sleeve 81 is threadedly connected with the threaded connecting pipe 83; the connecting mechanism 8 also includes a sealing gasket 82, which is respectively arranged between the connecting end of the threaded connecting pipe 83 and the connecting end of the threaded connecting pipe 83, a fixing ring 84, a vertical plate 85 and a fixing bolt 86. The outside of the internal threaded sleeve 81 is respectively provided with front and rear symmetrical fixing rings 84, and the upper and lower ends of the fixing ring 84 are respectively provided with vertical plates 85, and the two front and rear adjacent vertical plates 85 are fixedly connected by fixing bolts 86.

[0028] The working principle of the utility model is as follows:

[0029] When installing the stop valve on the oxygen tank, first place the sealing gasket 82 between the threaded connection pipe 83 and the connection pipe 5, then align the threaded connection pipe 83 with the connection pipe 5, then rotate the internal thread sleeve 81 to the outside of the threaded connection, then put the fixing ring 84 on the outside of the internal thread sleeve 81, and then fix it with the fixing bolt 86 to make it more sealed;

[0030] When the stop valve needs to be remotely controlled, the remote controller is used for control. With the support of the wireless network, the signal is transmitted to the signal transceiver 10. The signal transceiver 10 transmits the command to the single chip computer 9 for integration, and controls the single chip computer 9. The motor 71 runs, and the output shaft of the motor 71 drives the rotating shaft 72 to rotate. The rotation of the rotating shaft 72 drives the gear 1 73 to rotate. The gear 1 73 drives the meshing gear 2 74 to rotate, and then drives the valve stem 3 to rotate. The rotation of the valve stem 3 drives the ball 2 to rotate. When the ball 2 rotates ninety degrees, the stop valve is opened, the single chip computer 9 is controlled, and the motor 71 stops running.

[0031] When it is necessary to close, the single chip microcomputer 9 is regulated, the motor 71 continues to run, the ball 2 rotates ninety degrees, and the stop valve is closed.

[0032] It is worth noting that the motor 71 disclosed in the above embodiments can be V5-040130FC2A, and the single chip microcomputer 9 controls the operation of the motor 71 using methods commonly used in the prior art.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-tightness stop valve for oxygen tanks, characterized by: It comprises a valve body (1), an automatic switch mechanism (7) and a connecting mechanism (8); The valve body (1) is rotatably connected to a ball (2) inside, a valve stem (3) is provided in the middle of the upper end of the ball (2), a dial wheel (4) is fixedly connected to the upper end of the valve stem (3), connecting pipes (5) are provided at the left and right ends of the valve body (1), and a protective cover (6) is provided at the upper end of the valve body (1); The automatic switch mechanism (7) is arranged inside the protective cover (6), and the automatic switch mechanism (7) is fixedly sleeved with the middle part of the valve stem (3); The connecting mechanisms (8) are respectively arranged at the connecting ends of the two connecting pipes (5).

2. A high-tightness stop valve for oxygen tanks according to claim 1, characterized in that: A single-chip microcomputer (9) is provided at the upper end of the protective cover (6), a signal transceiver (10) is provided on the right side of the upper end of the protective cover (6), an input end of the single-chip microcomputer (9) is electrically connected to an external power supply, and the signal transceiver (10) is bidirectionally electrically connected to the single-chip microcomputer (9).

3. A high-tightness stop valve for oxygen tanks according to claim 2, characterized in that: The automatic switch mechanism (7) comprises a rotating shaft (72), a gear 1 (73) and a gear 2 (74); the rotating shaft (72) is rotatably connected to the bottom wall of the protective cover (6); the middle part of the rotating shaft (72) is fixedly sleeved with a gear 1 (73); the gear 2 (74) is fixedly sleeved on the middle part of the valve stem (3); the gear 1 (73) is meshedly connected with the gear 2 (74).

4. The high-tightness stop valve for oxygen tanks according to claim 1 is characterized in that: The automatic switch mechanism (7) further comprises a motor (71), wherein the motor (71) is arranged on the top wall of the protective cover (6), the lower end of the output shaft of the motor (71) is fixedly connected to the upper end of the rotating shaft (72), and the input end of the motor (71) is electrically connected to the output end of the single chip computer (9).

5. The high-tightness stop valve for oxygen tanks according to claim 1 is characterized in that: The connecting mechanism (8) comprises an internal threaded sleeve (81) and a threaded connecting pipe (83), wherein the internal threaded sleeve (81) is movably sleeved on the connecting end of the connecting pipe (5), and the internal part of the internal threaded sleeve (81) is threadedly connected with the threaded connecting pipe (83).

6. A high-tightness stop valve for oxygen tanks according to claim 5, characterized in that: The connection mechanism (8) further comprises a sealing gasket (82), wherein the sealing gasket (82) is respectively arranged between the connection end of the threaded connection pipe (83) and the connection end of the threaded connection pipe (83).

7. A high-tightness stop valve for oxygen tanks according to claim 6, characterized in that: The connection mechanism (8) further comprises a fixing ring (84), a vertical plate (85) and a fixing bolt (86); the outer portion of the internally threaded sleeve (81) is provided with front and rear symmetrical fixing rings (84); the upper and lower ends of the fixing ring (84) are provided with vertical plates (85); and two front and rear adjacent vertical plates (85) are fixedly connected by fixing bolts (86).

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