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

Abstract

The utility model discloses a liquefied petroleum gas cylinder valve capable of being remotely controlled to be opened and closed, which belongs to the technical field of liquefied petroleum gas cylinder valves, and comprises a gas cylinder valve body, one side of the outlet end of the gas cylinder valve body is fixedly connected with a driver shell, and the other side of the outlet end of the gas cylinder valve body is fixedly connected with a hydraulic cylinder. 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 utility model 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] A liquefied petroleum gas (LPG) cylinder valve is a valve installed on a liquefied petroleum gas (LPG) cylinder to control the flow of gas. Commonly referred to as a "bottle valve," it serves as the cylinder's inlet and outlet control device and is essential for connecting to a pressure reducing valve. During use, a liquefied petroleum gas (LPG) cylinder valve typically incorporates a self-closing device within the valve outlet. This device automatically opens when connected to a gas charging device (or pressure regulator) and automatically closes when the gas charging device (or pressure regulator) is removed.

[0003] Based on the above, the inventors found that most of the safety accidents caused by liquefied petroleum gas leakage are caused by 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 liquefied petroleum gas cylinders need to be inspected regularly, while traditional cylinder valves cannot realize remote control functions and cannot actively close the valves, making it inconvenient to use. Therefore, in view of this, research and improvement are carried out on the existing structure 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. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the utility model 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 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, preventing the gas from continuing to leak, fundamentally preventing the probability of accidents occurring and expanding, and improving its safety.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] and a valve body having a valve stem, and a valve stem having a valve stem, and a valve stem having a valve stem and a valve stem as the valve stem.

[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 PTFE spacer 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 PTFE spacer and the support ring are located at both ends of the sealing support sleeve and are separated by an O-ring.

[0011] Furthermore, the PTFE 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 fixedly connected to the sealing cover and the side of the valve flap transmission gear respectively.

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

[0014] Furthermore, a slot is provided on the 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 provided inside the slot, and the end of the extended end of the valve flap connecting shaft is in contact 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 its safety in use. In addition, the valve can also be actively closed when the calibration date is reached, so that the liquefied gas cannot be used normally, prompting users to achieve the purpose of calibration, strengthening the liquefied gas company's management of the cylinder, and improving its convenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall internal structure of the utility model;

[0021] Figure 2 For the utility model 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 utility model;

[0023] Figure 4 This is a schematic diagram of the position structure of the driver housing of the present utility model;

[0024] Figure 5 For the utility model Figure 4 Schematic diagram of the AA position structure;

[0025] Figure 6 This is a schematic diagram of the valve disc main body position structure of the utility model.

[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 arm;

[0037] 11. Moving gear shaft;

[0038] 12. Rocker 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 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0050] Example:

[0051] See also Figure 1-6The cam is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts,

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

[0053] See Figure 5 A sealing support sleeve 15, a polytetrafluoroethylene septum 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 septum 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 Figure 5 The PTFE 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 gas cylinder valve body 1.

[0055] See 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. The two 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 Figure 3 and Figure 5 A special-shaped sealing ring 19 is provided between the outlet end of the gas cylinder valve body 1 and the sealing cover 3.

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

[0058] See 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 Figure 1 A limit switch is provided inside the outlet end of the cylinder valve body 1, and the limit switch is electrically connected to the motor reducer unit 7.

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

[0061] When normal gas supply is needed, the motor reducer unit 7 is started, and after power is turned on, it drives the rocker fixed gear 8 to rotate counterclockwise, and the rocker fixed gear 8 rotates while driving the rocker main body 10 to rotate counterclockwise. When the rocker movable gear 12 on the rocker main body 10 engages with the valve disc transmission gear 6, the valve disc transmission gear 6 rotates 90 degrees counterclockwise, and the valve disc main body 5 also rotates 90 degrees counterclockwise. At this time, the outlet end of the gas cylinder valve body 1 is in the open state, and the valve disc main 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 rocker movable gear 12 cannot rotate in the opposite direction. Further, after the power supply is stopped, the motor reducer unit 7 will not reverse, and the valve disc main body 5 will not close.

[0062] When the closing signal is received, 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", "upper", "lower", "horizontal", etc., indicating orientations or positional relationships, are 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 a limitation on the present invention.

[0064] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0065] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A liquefied petroleum gas cylinder valve capable of being remotely opened and closed, comprising a cylinder valve body (1), characterized in that: 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 the inner side of the driver housing (2) is fixedly installed. A motor reduction unit (7) is provided. A rocker fixed gear (8) is fixedly installed at the output end of the motor reduction unit (7). One end of the rocker 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 main body (10). A movable gear shaft (11) is fixedly connected to the side of the bottom end of the rocker main body (10). One end of the movable gear shaft (11) is rotatably connected to a rocker movable gear (12). The outer periphery of the rocker movable gear (12) is respectively meshed with the valve disc transmission gear (6) and the rocker fixed gear (8).

2. A liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, characterized in that: The rocker 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 rocker movable gear (12) are rotationally connected via a needle clutch (14).

3. The liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, characterized in that: A sealing support sleeve (15), a polytetrafluoroethylene spacer (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 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.

4. The liquefied petroleum gas cylinder valve capable of remotely controlled opening and closing according to claim 3, characterized in that: 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 gas cylinder valve body (1).

5. The liquefied petroleum gas cylinder valve capable of remotely controlled opening and closing according to claim 3, characterized in that: 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 fixedly connected to the sealing cover (3) and the side of the valve flap transmission gear (6) respectively.

6. The liquefied petroleum gas cylinder valve capable of remotely controlled opening and closing according to claim 1, characterized in that: 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. The liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, characterized in that: 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 interior 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 with the outer periphery of the stainless steel bead (20).

8. The liquefied petroleum gas cylinder valve capable of remotely controlled opening and closing according to claim 1, characterized in that: 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).

9. The liquefied petroleum gas cylinder valve capable of remotely controlling opening and closing according to claim 1, characterized in that: A limit switch is provided 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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