Gate quick-closing valve for gas meter

Abstract

The utility model relates to a flashboard quick-closing valve for a gas meter, which comprises a first shell and a second shell which are arranged on the left side and the right side, the second shell is provided with a driving motor, a driving gear on the driving motor is meshed with a first transmission gear, the first transmission gear is meshed with a second transmission gear, and the second transmission gear is meshed with a first reduction gear. The first reduction gear is meshed with a second reduction gear; the second reduction gear is meshed with a push rod with sawteeth; the other end of the push rod with the sawteeth is connected with a flashboard which is located below an air inlet connected with the first shell. In the utility model, a push rod with sawteeth is linked with a flashboard, a spring is nested on the push rod with sawteeth, the spring is positioned in a first shell, and the push rod with sawteeth penetrates through the first shell to reach a second shell. Due to the arrangement of the structure, the valve can be rapidly closed by means of the elastic force of the spring, the structure is simple, and installation and use are convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas table technical field, concretely relates to a gate quick closing valve for gas table. BACKGROUND

[0002] In the gas table, the gas's in and out rely on built-in valve to control. When detecting the gas leakage, the valve needs to be closed quickly, and the valve needs to be opened when meeting the safe use condition. In order to meet the demand, the utility model adopts motor drive gear and reduction structure, and utilizes sawtooth rod and spring elastic force, effectively realizes the function of quickly closing valve and smoothly opening valve. SUMMARY

[0003] The utility model discloses a kind of gate quick closing valves for gas table, realize the purpose of quickly closing valve, improve the security of gas table use.

[0004] In order to achieve the above object, the technical scheme of the utility model is as follows.

[0005] A kind of gate quick closing valve for gas table, including the first shell and the second shell being arranged in left and right sides, the second shell is equipped with drive motor, motor driving gear on drive motor is engaged with first transmission gear, first transmission gear is engaged with second transmission gear, second transmission gear is engaged with first reduction gear, first reduction gear is engaged with second reduction gear;Second reduction gear is engaged with sawtooth push rod;Sawtooth push rod other end is connected with gate, and gate is arranged on the first shell.

[0006] Further, the first shell is provided with air inlet, and the gate is arranged at the bottom position of the air inlet.

[0007] Further, spring is arranged at the middle position of sawtooth push rod, and the spring is in the first shell, and sawtooth push rod passes through the first shell to reach the second shell;Spring only moves in the first shell, and does not affect the movement of sawtooth push rod in the first shell and the second shell.

[0008] Further, the gate is installed and arranged in an inclined manner, and the upper part is attached to the lower part of the air inlet.

[0009] Further, the lower part of the gate is fixedly connected to the left end of the sawtooth push rod.

[0010] Further, the second reduction gear is engaged with locking tab on one side;Locking tab one side is equipped with part gear and second reduction gear is engaged with each other.

[0011] The utility model discloses the beneficial effect lies in: the utility model discloses, and the band saw tooth push rod is linked with the gate board, and the band saw tooth push rod is nested with a spring, and the spring is at the first casing, and the band saw tooth push rod passes through the first casing and reaches the second casing. There is the matching gear beside the sawtooth, and the locking switch blade is beside the gear, and the setting of this kind of structure can close the valve quickly with the spring elasticity, and the simple structure is convenient to install and use. When opening the valve, the driving motor drives the driving gear, and utilizes motor driving gear to drive transmission gear group, reduction gear group, drives the band saw tooth push rod after deceleration, and carries out the opening operation. When closing the valve, the driving motor reverses, and the locking switch blade reverses the movement, and the gate board closes the valve quickly under the spring effect. This setting structure, when the gas leakage needs to close the valve, closes the valve quickly and can reduce the leakage amount, is more beneficial to the life property safety protection. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overhead structure schematic diagram of the device used in the embodiment of the utility model.

[0013] Figure 2 It is Figure 1 It is the local amplification schematic diagram of A in the embodiment of the utility model.

[0014] Figure 3 It is the bottom structure schematic diagram of the device used in the embodiment of the utility model.

[0015] Figure 4 It is the side structure schematic diagram of the device used in the embodiment of the utility model.

[0016] Marking in the drawing: 1, driving motor, 2, locking switch blade, 3, band saw tooth push rod, 4, spring, 5, air inlet, 6, first casing, 7, gate board, 8, motor driving gear, 9, first transmission gear, 10, second transmission gear, 11, first reduction gear, 12, second reduction gear, 13, second casing. DETAILED DESCRIPTION

[0017] The specific embodiment of the utility model is described below in combination with the drawings and the embodiment, so that the utility model can be better understood.

[0018] As Figures 1 to 4The illustrated gas meter uses the shutter quick closing valve, including the first shell 6 and the second shell 13 arranged on the left and right sides, the second shell 13 is provided with a driving motor 1, the motor driving gear 8 on the driving motor 1 is engaged with the first transmission gear 9, the first transmission gear 9 is engaged with the second transmission gear 10, the second transmission gear 10 is engaged with the first reduction gear 11, and the first reduction gear 11 is engaged with the second reduction gear 12; the second reduction gear 12 is engaged with the sawtooth push rod 3; the sawtooth push rod 3 is connected with the shutter 7 at the other end, and the shutter 7 is arranged on the first shell 6. The first shell 6 is provided with an air inlet 5, and the shutter 7 is arranged at the bottom position of the air inlet 5. The sawtooth push rod 3 is provided with a spring 4 at the middle position, and the two ends of the spring 4 are fixedly arranged at the two end positions of the sawtooth push rod 3, the spring 4 is in the first shell 6, and the sawtooth push rod 3 passes through the first shell 6 to reach the second shell 13. The shutter 7 is obliquely arranged and arranged, and the upper part is attached to the lower part of the air inlet 5. The lower part of the shutter 7 is fixedly connected to the left end of the sawtooth push rod 3. The second reduction gear 12 is engaged with the locking piece 2 on one side; the locking piece 2 is provided with a part of gear which is engaged with the second reduction gear 12.

[0019] In the utility model, the sawtooth push rod 3 is linked with the shutter 7, and a spring 4 is nested on the sawtooth push rod 3. The sawtooth push rod 3 has sawteeth on one side, and the sawteeth have matching gears beside them. The gears have the locking piece 12 beside them. The locking piece 12 has the driving motor 1 beside it. The working principle of the utility model device is as follows: when opening the valve, the driving motor 1 drives the motor driving gear 8, and drives the first transmission gear 9 and the second transmission gear 10 by using the motor driving gear 8, and drives the sawtooth push rod 3 by reducing through the first reduction gear 11 and the second reduction gear 12, so as to drive the shutter 7 at the end of the sawtooth push rod 3 to move to the right and open.

[0020] The above is the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the utility model, and these improvements and refinements are also regarded as the protection range of the utility model.

Claims

1. A flashboard quick closing valve for a gas meter, characterized by: It includes the first shell (6) and the second shell (13) arranged on the left and right sides, the second shell (13) is provided with a driving motor (1), the motor driving gear (8) on the driving motor (1) is engaged with the first transmission gear (9), the first transmission gear (9) is engaged with the second transmission gear (10), the second transmission gear (10) is engaged with the first reduction gear (11), the first reduction gear (11) is engaged with the second reduction gear (12), the second reduction gear (12) is engaged with the band saw blade push rod (3), the other end of the band saw blade push rod (3) is connected with the shutter (7), and the shutter (7) is arranged on the first shell (6).

2. A flapper quick closing valve for a gas meter according to claim 1 characterised in that: The first shell (6) is provided with an air inlet (5), and the shutter (7) is arranged at the bottom of the air inlet (5).

3. A flapper fast-closing valve for gas meters according to claim 1, characterized in that: The band saw blade push rod (3) is provided with a spring (4) at the middle position, the spring (4) is located in the first shell (6), the band saw blade push rod (3) passes through the first shell (6) to reach the second shell (13), the spring (4) only moves in the first shell (6), and does not affect the movement of the band saw blade push rod (3) in the first shell (6) and the second shell (13).

4. The fast shut-off gate valve for gas meters according to claim 1, characterized in that: The shutter (7) is obliquely arranged, and the upper part is attached to the lower part of the air inlet (5).

5. The fast shut-off gate valve for gas meters according to claim 1, characterized in that: The lower part of the shutter (7) is fixedly connected to the left end of the band saw blade push rod (3).

6. The flashboard quick closure valve for gas meters according to claim 1, characterized in that: The second reduction gear (12) is engaged with the locking tab (2) on one side; the locking tab (2) is provided with a part of gear which is engaged with the second reduction gear (12).

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