Liquefied petroleum gas cylinder valve capable of being remotely controlled to be opened and closed

Abstract

The invention discloses a liquefied petroleum gas cylinder valve capable of being remotely controlled to be opened and closed, and belongs to the technical field of liquefied petroleum gas cylinder valves. The liquefied petroleum gas cylinder valve capable of being remotely controlled to be opened and closed comprises a gas cylinder valve body, and a driver shell is fixedly connected to one side of the outlet end of the gas cylinder valve body; a sealing cover is fixedly connected to one side of the outlet end of the gas cylinder valve body and located in the driver shell, a valve clack connecting shaft is connected to the sealing cover in a penetrating mode, and one end of the valve clack connecting shaft extends into the outlet end of the gas cylinder valve body and is fixedly connected with a valve clack body. By means of mutual matching of the swing rod fixed gear, the swing rod movable gear, the swing rod body and the valve clack transmission gear and under driving of the motor speed reducing unit, the liquefied petroleum gas cylinder valve can be actively closed when leakage occurs, gas is prevented from continuing to leak, accidents are fundamentally prevented from occurring, the probability of expansion is fundamentally reduced, and safety of the liquefied petroleum gas cylinder valve is improved.

Description

Technical Field

[0001] The invention relates to the technical field of liquefied petroleum gas cylinder valves, and more particularly to a liquefied petroleum gas cylinder valve capable of being remotely controlled to open and close. Background Art

[0002] The liquefied petroleum gas cylinder valve refers to the valve installed on the liquefied petroleum gas cylinder to control the gas on and off and flow rate. It is usually called a "bottle valve". It is the inlet and outlet control device of the gas cylinder and is also a necessary device for connecting the pressure reducing valve. During the use of the liquefied petroleum gas cylinder valve, a self-closing device is usually set in the outlet of the valve. After connecting with the charging device (or pressure regulator), the valve can be automatically opened, and after removing the charging device (or pressure regulator), the valve can be automatically closed.

[0003] Based on the above, the inventors found that most of the safety accidents caused by liquefied petroleum gas leakage are due to hose leakage or connection problems or the ignition valve is not in the open state. Basically, the leakage points are behind the bottle valve, so the self-closing device cannot solve the actual fundamental problem. The overall safety of use is poor, and the liquefied petroleum gas cylinders need to be inspected regularly, while the traditional cylinder valves cannot realize the remote control function and cannot actively close the valve, making it inconvenient to use. Therefore, in view of this, the existing structure is studied and improved to provide a liquefied petroleum gas cylinder valve that can be remotely controlled to open and close, in order to achieve a more practical purpose. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a liquefied petroleum gas cylinder valve that can be remotely controlled to open and close. It can utilize the mutual cooperation of the rocker arm fixed gear, the rocker arm moving gear, the rocker arm main body and the valve disc transmission gear, and under the drive of the motor reduction unit, the liquefied petroleum gas cylinder valve can actively close the valve when a leak occurs, prevent the gas from continuing to leak, fundamentally prevent the probability of accidents occurring and expanding, and improve its safety.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A liquefied petroleum gas cylinder valve that can be remotely controlled to open and close comprises a cylinder valve body, wherein one side of the cylinder valve body outlet end is fixedly connected to a driver housing, one side of the cylinder valve body outlet end is fixedly connected to a sealing cover, and the sealing cover is located inside the driver housing, a valve flap connecting shaft is penetrated and connected to the sealing cover, one end of the valve flap connecting shaft extends to the inside of the cylinder valve body outlet end and is fixedly connected to the valve flap body, the other end of the valve flap connecting shaft is fixedly connected to a valve flap transmission gear, a motor reduction unit is fixedly installed on the inner side of the driver housing, a swing rod fixed gear is fixedly installed on the output end of the motor reduction unit, one end of the swing rod fixed gear is rotatably connected to a fixed gear shaft, one end of the fixed gear shaft is fixedly connected to a swing rod body, a moving gear shaft is fixedly connected to the bottom side position of the swing rod body, one end of the moving gear shaft is rotatably connected to a swing rod moving gear, and the outer periphery of the swing rod moving gear is respectively meshed with the valve flap transmission gear and the swing rod fixed gear.

[0009] Furthermore, the rocker arm fixed gear and the fixed gear shaft are rotationally connected via a ball bearing, and the movable gear shaft and the rocker arm movable gear are rotationally connected via a needle clutch.

[0010] Furthermore, a sealing support sleeve, a polytetrafluoroethylene gasket and a support ring are provided between the outer periphery of the valve disc connecting shaft and the inner wall of the sealing cover. The polytetrafluoroethylene gasket and the support ring are located at both ends of the sealing support sleeve and are separated by an O-ring.

[0011] Furthermore, the polytetrafluoroethylene septum is sleeved on the valve disc connecting shaft and is located between the sealing cover and the outlet end of the gas cylinder valve body.

[0012] Furthermore, one end of the support ring extends to the outside of the sealing cover and is sleeved with a valve flap force storage spring, and both ends of the valve flap force storage spring are respectively fixedly connected to the sealing cover and the side of the valve flap transmission gear.

[0013] Furthermore, a special-shaped sealing ring is arranged between the outlet end of the gas cylinder valve body and the sealing cover.

[0014] Furthermore, a slot is provided on one side of the outlet end of the gas cylinder valve body close to the sealing cover, and one end of the valve flap connecting shaft extends through the slot to the inside of the outlet end of the gas cylinder valve body, a stainless steel bead is arranged inside the slot, and the end of the extended end of the valve flap connecting shaft is in contact and connected with the outer periphery of the stainless steel bead.

[0015] Furthermore, a sealing valve pad and a sealing valve seat are sequentially arranged inside the outlet end of the gas cylinder valve body near the valve disc body.

[0016] Furthermore, a limit switch is provided inside the outlet end of the gas cylinder valve body, and the limit switch is electrically connected to the motor reducer unit.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] This solution, through the mutual cooperation of the rocker fixed gear, the rocker moving gear, the rocker main body and the valve disc transmission gear, and driven by the motor reduction unit, can actively close the valve of the liquefied petroleum gas cylinder valve when gas leakage occurs and reaches the alarm lower limit, thereby preventing the gas from continuing to leak, fundamentally preventing the probability of accidents and their expansion, and greatly improving the safety of its use. In addition, the valve can also be actively closed when the inspection date arrives, so that the liquefied gas cannot be used normally, thereby prompting users to achieve the purpose of inspection, strengthening the management of the cylinders by the liquefied gas company, and improving the convenience of its use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall internal structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the structure without the driver housing;

[0022] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the position structure of the driver housing of the present invention;

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of the AA position structure;

[0025] Figure 6 It is a schematic diagram of the main position structure of the valve disc of the present invention.

[0026] Description of the numbers in the figure:

[0027] 1. Gas cylinder valve body;

[0028] 2. Driver housing;

[0029] 3. Sealing cover;

[0030] 4. Valve disc connecting shaft;

[0031] 5. Valve disc body;

[0032] 6. Valve disc transmission gear;

[0033] 7. Motor reducer unit;

[0034] 8. Rocker fixed gear;

[0035] 9. Fixed gear shaft;

[0036] 10. The main body of the swing rod;

[0037] 11. Moving gear shaft;

[0038] 12. Rocker moving gear;

[0039] 13. Ball bearings;

[0040] 14. Needle roller clutch;

[0041] 15. Sealing support sleeve;

[0042] 16. PTFE septum;

[0043] 17. Support ring;

[0044] 18. Valve disc force storage spring;

[0045] 19. Special-shaped sealing ring;

[0046] 20. Stainless steel beads;

[0047] 21. Sealing valve gasket;

[0048] 22. Sealing valve seat. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0050] Example:

[0051] See also Figure 1-6 A liquefied petroleum gas cylinder valve that can be remotely controlled to open and close comprises a cylinder valve body 1, a driver housing 2 is fixedly connected to one side of the outlet end of the cylinder valve body 1, a sealing cover 3 is fixedly connected to one side of the outlet end of the cylinder valve body 1, and the sealing cover 3 is located inside the driver housing 2, a valve flap connecting shaft 4 is connected through the sealing cover 3, one end of the valve flap connecting shaft 4 extends to the inside of the outlet end of the cylinder valve body 1, and is fixedly connected to a valve flap body 5, and the other end of the valve flap connecting shaft 4 is fixedly connected to a valve flap transmission gear 6, a motor reduction unit 7 is fixedly installed inside the driver housing 2, a swing rod fixed gear 8 is fixedly installed at the output end of the motor reduction unit 7, one end of the swing rod fixed gear 8 is rotatably connected to a fixed gear shaft 9, one end of the fixed gear shaft 9 is fixedly connected to a swing rod body 10, a moving gear shaft 11 is fixedly connected to the bottom side of the swing rod body 10, one end of the moving gear shaft 11 is rotatably connected to a swing rod moving gear 12, and the outer periphery of the swing rod moving gear 12 is respectively meshed with the valve flap transmission gear 6 and the swing rod fixed gear 8.

[0052] See also Figure 5 The rocker arm fixed gear 8 is rotationally connected to the fixed gear shaft 9 via a ball bearing 13, and the moving gear shaft 11 is rotationally connected to the rocker arm moving gear 12 via a needle clutch 14. When in use, the needle clutch 14 mainly prevents the rocker arm moving gear 12 from rotating in the opposite direction, and can be replaced by a one-way bearing.

[0053] See also Figure 5 A sealing support sleeve 15, a polytetrafluoroethylene spacer 16 and a support ring 17 are arranged between the outer periphery of the valve disc connecting shaft 4 and the inner wall of the sealing cover 3. The polytetrafluoroethylene spacer 16 and the support ring 17 are located at both ends of the sealing support sleeve 15 and are separated by an O-ring. When in use, a piston rod seal is adopted between the valve disc connecting shaft 4 and the sealing cover 3, and the sealing support sleeve 15 is used to separate them in the middle, and plays a supporting role together with the support ring 17.

[0054] See also Figure 5 The polytetrafluoroethylene septum 16 is sleeved on the valve disc connecting shaft 4 and is located between the sealing cover 3 and the outlet end of the cylinder valve body 1.

[0055] See also Figure 3 One end of the support ring 17 extends to the outside of the sealing cover 3 and is sleeved with a valve disc storage spring 18, and both ends of the valve disc storage spring 18 are fixedly connected to the sealing cover 3 and the side of the valve disc transmission gear 6 respectively.

[0056] See also Figure 3 and Figure 5 A special-shaped sealing ring 19 is arranged between the outlet end of the gas cylinder valve body 1 and the sealing cover 3.

[0057] See also Figure 5 A slot is provided on one side of the outlet end of the gas cylinder valve body 1 close to the sealing cover 3, and one end of the valve flap connecting shaft 4 extends through the slot to the inside of the outlet end of the gas cylinder valve body 1, a stainless steel bead 20 is provided inside the slot, and the end of the extended end of the valve flap connecting shaft 4 is in contact and connected with the outer periphery of the stainless steel bead 20. When in use, the stainless steel bead 20 acts as a sliding bearing to reduce the rotational friction resistance of the valve flap connecting shaft 4.

[0058] See also Figure 1 and Figure 2 A sealing valve pad 21 and a sealing valve seat 22 are sequentially arranged inside the outlet end of the gas cylinder valve body 1 near the valve disc body 5 .

[0059] See also Figure 1 A limit switch is arranged inside the outlet end of the gas cylinder valve body 1, and the limit switch is electrically connected to the motor reducer unit 7.

[0060] Working principle: The cylinder valve should be equipped with a concentration sensor or a data platform. When the concentration reaches the alarm concentration, the concentration sensor sends a switch signal and the valve is closed. When the danger is eliminated, the platform sends a valve opening command and the valve is opened; or when the platform determines that the cylinder has reached the calibration cycle, the data platform sends a valve closing command and the valve is closed.

[0061] When normal gas supply is required, the motor reducer unit 7 is started, and after power is turned on, the swing rod fixed gear 8 is driven to rotate counterclockwise, and the swing rod fixed gear 8 rotates while driving the swing rod body 10 to rotate counterclockwise. When the swing rod moving gear 12 on the swing rod body 10 is engaged with the valve disc transmission gear 6, the valve disc transmission gear 6 rotates 90 degrees counterclockwise, and the valve disc body 5 also rotates 90 degrees counterclockwise. At this time, the outlet end of the gas cylinder valve body 1 is in an open state, and the valve disc body 5 hits the limit switch during rotation. At this time, the motor reducer unit 7 stops supplying power and stops rotating. At the same time, the needle clutch 14 installed in the swing rod moving gear 12 cannot rotate in the opposite direction. After the power supply is stopped, the motor reducer unit 7 will not reverse, and the valve disc body 5 will not close;

[0062] When receiving the closing signal, the motor reduction unit 7 reverses, and the rocker arm fixed gear 8 drives the rocker arm main body 10 to rotate clockwise. Since the needle clutch 14 installed in the rocker arm moving gear 12 cannot rotate counterclockwise, the rocker arm fixed gear 8 drives the rocker arm main body 10 to rotate clockwise, and the rocker arm moving gear 12 is disengaged from the valve disc transmission gear 6. Due to the action of the valve disc storage spring 18, the valve disc transmission gear 6 rotates clockwise, and the valve disc main body 5 is reset. At this time, the outlet end of the gas cylinder valve body 1 is closed internally, and the gas supply is stopped.

[0063] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0064] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0065] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquefied petroleum gas cylinder valve capable of being remotely controlled to open and close, comprising a cylinder valve body (1), Features: One side of the outlet end of the gas cylinder valve body (1) is fixedly connected to a driver housing (2), and one side of the outlet end of the gas cylinder valve body (1) is fixedly connected to a sealing cover (3), and the sealing cover (3) is located inside the driver housing (2). A valve flap connecting shaft (4) is connected through the sealing cover (3), one end of the valve flap connecting shaft (4) extends to the inside of the outlet end of the gas cylinder valve body (1) and is fixedly connected to a valve flap body (5), and the other end of the valve flap connecting shaft (4) is fixedly connected to a valve flap transmission gear (6), and a valve flap connecting shaft (5) is fixedly installed inside the driver housing (2). A motor reduction unit (7) is provided, wherein a rocker arm fixed gear (8) is fixedly mounted at the output end of the motor reduction unit (7), one end of the rocker arm fixed gear (8) is rotatably connected to a fixed gear shaft (9), one end of the fixed gear shaft (9) is fixedly connected to a rocker arm main body (10), a movable gear shaft (11) is fixedly connected to the side position of the bottom end of the rocker arm main body (10), one end of the movable gear shaft (11) is rotatably connected to a rocker arm movable gear (12), and the outer periphery of the rocker arm movable gear (12) is respectively meshed and connected with the valve disc transmission gear (6) and the rocker arm fixed gear (8).

2. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, Features: The swing arm fixed gear (8) and the fixed gear shaft (9) are rotationally connected via a ball bearing (13), and the movable gear shaft (11) and the swing arm movable gear (12) are rotationally connected via a needle clutch (14).

3. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, Features: A sealing support sleeve (15), a polytetrafluoroethylene gasket (16) and a support ring (17) are provided between the outer periphery of the valve disc connecting shaft (4) and the inner wall of the sealing cover (3); the polytetrafluoroethylene gasket (16) and the support ring (17) are located at both ends of the sealing support sleeve (15) and are separated by an O-ring.

4. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 3, Features: The polytetrafluoroethylene septum (16) is sleeved on the valve flap connecting shaft (4) and is located between the sealing cover (3) and the outlet end of the gas cylinder valve body (1).

5. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 3, Features: One end of the support ring (17) extends to the outside of the sealing cover (3) and is sleeved with a valve flap force storage spring (18), and the two ends of the valve flap force storage spring (18) are respectively fixedly connected to the sealing cover (3) and the side of the valve flap transmission gear (6).

6. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, Features: A special-shaped sealing ring (19) is provided between the outlet end of the gas cylinder valve body (1) and the sealing cover (3).

7. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, Features: A slot is provided on a side of the outlet end of the gas cylinder valve body (1) close to the sealing cover (3), and one end of the valve flap connecting shaft (4) extends through the slot to the inside of the outlet end of the gas cylinder valve body (1), a stainless steel bead (20) is arranged inside the slot, and the end of the extended end of the valve flap connecting shaft (4) is in contact with and connected to the outer periphery of the stainless steel bead (20).

8. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, Features: A sealing valve pad (21) and a sealing valve seat (22) are sequentially arranged inside the outlet end of the gas cylinder valve body (1) near the valve flap body (5).

9. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, Features: A limit switch is arranged inside the outlet end of the gas cylinder valve body (1), and the limit switch is electrically connected to the motor reducer unit (7).

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