Gas meter motor

Abstract

The present invention discloses a gas meter motor, comprising a motor body and a positioning locking device arranged on the motor body, the positioning locking device comprising a semi-cylindrical positioning seat, a positioning groove arranged in an annular direction on the inner wall of the positioning seat, a sliding block which can slide along the positioning groove, a locking groove arranged at the bottom of the sliding block, a locking block arranged at one side end of the positioning groove, the locking block arranged in an accommodating groove and supported by a spring, the spring can be compressed and retracted into the accommodating groove, the sliding block is connected to the motor output shaft through a positioning connecting rod and can slide synchronously in the positioning groove with the rotation of the output shaft, and a locking indicating device is arranged in the accommodating groove. Through the present invention, it can be effectively ensured that the gas meter valve is closed in place and will not be easily loosened, thereby eliminating the safety hazard of gas leakage.

Description

Technical Field

[0001] The invention relates to a motor device, in particular to a gas meter motor. Background Art

[0002] Existing gas meter valves generally use a motor-driven connecting rod mechanism to close the valve, with a speed reduction mechanism in the middle. This simple driving method has certain sealing risks, and the valve may become loose or not closed properly, which may cause gas leakage. Summary of the invention

[0003] The object of the present invention is to provide a gas meter motor to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a gas meter motor, comprising:

[0005] The motor body is composed of a housing, a magnetic ring, a rotor, a coil and an output shaft. The housing is a hollow cylindrical body. The rotor is arranged in the housing. The coil is wound on the rotor. The magnetic ring is fixed to the inner ring of the housing and surrounds the outer periphery of the rotor. The output shaft is connected to the rotor.

[0006] A positioning and locking device, which is arranged outside the housing, comprises:

[0007] A positioning seat, which is a semi-cylindrical structure, is disposed perpendicularly to one end surface of the housing at the front end of the output shaft and is fixed to the housing through a plurality of columns;

[0008] A positioning groove, which is a semicircular groove opened along the annular direction on the inner wall of the positioning seat;

[0009] A sliding block is clamped in the positioning groove and can slide along the positioning groove, and a locking groove recessed inward is provided at the bottom of the sliding block;

[0010] A locking block is arranged at one side end of the positioning groove, a receiving groove is arranged in the positioning groove, the locking block is located in the receiving groove and the upper end thereof protrudes, a compression spring for supporting the locking block is arranged at the bottom of the receiving groove, and the portion of the locking block protruding from the receiving groove is a wedge-shaped structure facing the sliding block;

[0011] A positioning connecting rod, one end of which is vertically fixed on the output shaft, and the other end of which is fixed on the sliding block;

[0012] A locking indicator device is arranged in the accommodating groove, including a reset switch arranged on the inner wall of the accommodating groove. The reset switch is connected in series with the power supply and the locking indicator light in the same power circuit through a wire. The locking indicator light is arranged on the outer wall of the positioning seat.

[0013] Preferably, for the gas meter motor, a vertical strip groove is provided on the positioning seat corresponding to the accommodating groove, and the strip groove is connected to the accommodating groove. A toggle shaft is vertically connected to the side wall of the locking block, and the toggle shaft passes through the strip groove and is connected to the toggle block arranged on the outside of the strip groove.

[0014] Preferably, for the gas meter motor, the inner wall of the positioning groove is coated with a smooth coating.

[0015] Preferably, for the gas meter motor, a reduction box is provided on the output shaft, and the reduction box is fixed to the column via a bracket.

[0016] Preferably, for the gas meter motor, a mounting seat is provided on an end surface of the casing on one side away from the positioning seat.

[0017] Preferably, for the gas meter motor, an anti-corrosion coating is provided on the outer wall of the casing.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In order to solve the problem that the valve of the gas meter cannot be closed properly, the present invention provides a motor body and a positioning locking device matched with the motor body. The output shaft of the motor is decelerated by a reduction gear box and then connected to a connecting rod mechanism. The connecting rod mechanism drives the valve to open and close. The output shaft rotates a certain angle to drive the valve to close. A sliding block connected to the output shaft through a positioning connecting rod is arranged in the positioning locking device. The sliding block will slide synchronously in the positioning groove with the rotation of the output shaft. When the output shaft rotates a certain angle, the gas meter valve is closed, and the sliding block just reaches the locking block. The bottom of the sliding block presses the locking block downward, the compression spring contracts, and the locking block is first received in the accommodating groove. Then, when the locking groove at the bottom of the sliding block reaches above the locking block, the locking block pops out and is stuck in the locking groove. At this time, the gas meter valve is just closed in place. Under the action of the locking block, the sliding block cannot rotate, and the motor output shaft cannot flip, thereby ensuring that the gas meter valve will not loosen. At the same time, when the locking block is received in the accommodating groove, it will squeeze the reset switch on the wall of the accommodating groove, so that the circuit where the switch is located is turned on, and the locking indicator light is on. When the locking block is reset and stuck in the locking groove, the reset switch automatically resets and disconnects the circuit where it is located, so that the locking indicator light goes out. When the staff closes the gas meter valve through the motor, if the locking indicator light first lights up and then goes out, it means that the locking block has been stuck in the locking groove, thereby informing the staff that the valve has been closed in place and locked. If the locking indicator light does not light up or does not go out after lighting up, it means that the valve is not closed in place or is not locked. Through the present invention, it can effectively ensure that the gas meter valve is closed in place and the lock will not loosen, thereby eliminating the safety hazard of gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention,

[0021] Figure 2 This is a schematic diagram of the structure of the positioning and locking device of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the locking indicating device of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-3 The present invention provides a technical solution: a gas meter motor, comprising:

[0025] The motor body is composed of a housing 1, a magnetic ring 2, a rotor 3, a coil 4 and an output shaft 5. The housing 1 is a hollow cylindrical body. The rotor 3 is arranged in the housing 1. The coil 4 is wound around the rotor 3. The magnetic ring 2 is fixed to the inner ring of the housing 1 and surrounds the outer periphery of the rotor 3. The output shaft 5 is connected to the rotor 3.

[0026] The positioning and locking device is arranged outside the housing 1 and includes:

[0027] The positioning seat 6 is a semi-cylindrical structure, which is arranged perpendicularly to one end surface of the housing 1 at the front end of the output shaft 5 and is fixed to the housing 1 through a plurality of columns 7;

[0028] The positioning groove 8 is a semicircular groove formed on the inner wall of the positioning seat 6 along the annular direction;

[0029] A sliding block 9 is clamped in the positioning groove 8 and can slide along the positioning groove 8. A locking groove 10 recessed inwardly is provided at the bottom of the sliding block 9;

[0030] The locking block 11 is arranged at one side end of the positioning groove 8. The positioning groove 8 is provided with a receiving groove 12. The locking block 11 is located in the receiving groove 12 and the upper end thereof protrudes. The bottom of the receiving groove 12 is provided with a compression spring 13 for supporting the locking block 11. The portion of the locking block 11 protruding from the receiving groove 12 is a wedge-shaped structure facing the sliding block 9.

[0031] A positioning connecting rod 14, one end of which is vertically fixed on the output shaft 5, and the other end is fixed on the sliding block 9;

[0032] The locking indicator device is arranged in the accommodating groove 12, including a reset switch 15 arranged on the inner wall of the accommodating groove 12. The reset switch 15 is connected in series with the power supply and the locking indicator light 16 in the same power circuit through a wire. The locking indicator light 16 is arranged on the outer wall of the positioning seat 6.

[0033] In another embodiment, a vertical strip groove 17 is provided on the positioning seat 6 at a position corresponding to the accommodating groove 12, and the strip groove 17 is connected to the accommodating groove 12. A toggle shaft is vertically connected to the side wall of the locking block 11. The toggle shaft passes through the strip groove 17 and is connected to a toggle block 18 provided on the outside of the strip groove 17. The toggle block 18 is used to unlock. When the gas meter valve needs to be opened, the toggle block 18 is pressed downward, and the locking block 11 also moves downward and withdraws from the locking groove 10, so that the lock can be released and the valve can be opened.

[0034] In another embodiment, the inner wall of the positioning groove 8 is coated with a smooth coating.

[0035] In another embodiment, a reduction box 19 is provided on the output shaft 5, and the reduction box 19 is fixed on the column 7 through a bracket.

[0036] In another embodiment, a mounting seat is provided on an end surface of the housing 1 which is away from the positioning seat 6 .

[0037] In another embodiment, an anti-corrosion coating is provided on the outer wall of the casing 1 .

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas meter motor, characterized in that: include: The motor body is composed of a housing, a magnetic ring, a rotor, a coil and an output shaft. The housing is a hollow cylindrical body. The rotor is arranged in the housing. The coil is wound on the rotor. The magnetic ring is fixed to the inner ring of the housing and surrounds the outer periphery of the rotor. The output shaft is connected to the rotor. A positioning and locking device, which is arranged outside the housing, comprises: A positioning seat, which is a semi-cylindrical structure, is disposed perpendicularly to one end surface of the housing at the front end of the output shaft and is fixed to the housing through a plurality of columns; A positioning groove, which is a semicircular groove opened along the annular direction on the inner wall of the positioning seat; A sliding block is clamped in the positioning groove and can slide along the positioning groove, and a locking groove recessed inward is provided at the bottom of the sliding block; A locking block is arranged at one side end of the positioning groove, a receiving groove is arranged in the positioning groove, the locking block is located in the receiving groove and the upper end thereof protrudes, a compression spring for supporting the locking block is arranged at the bottom of the receiving groove, and the portion of the locking block protruding from the receiving groove is a wedge-shaped structure facing the sliding block; A positioning connecting rod, one end of which is vertically fixed on the output shaft, and the other end of which is fixed on the sliding block; A locking indicator device is arranged in the accommodating groove, including a reset switch arranged on the inner wall of the accommodating groove. The reset switch is connected in series with the power supply and the locking indicator light in the same power circuit through a wire. The locking indicator light is arranged on the outer wall of the positioning seat.

2. The gas meter motor according to claim 1, characterized in that: A vertical strip groove is provided on the positioning seat at a position corresponding to the accommodating groove, and the strip groove is connected to the accommodating groove. A toggle shaft is vertically connected to the side wall of the locking block, and the toggle shaft passes through the strip groove and is connected to the toggle block arranged outside the strip groove.

3. The gas meter motor according to claim 1, characterized in that: The inner wall of the positioning groove is coated with a smooth coating.

4. The gas meter motor according to claim 1, characterized in that: The output shaft is provided with a reduction box, and the reduction box is fixed on the column through a bracket.

5. The gas meter motor according to claim 1, characterized in that: The housing is provided with a mounting seat on an end surface of one side away from the positioning seat.

6. The gas meter motor according to claim 1, characterized in that: An anti-corrosion coating is arranged on the outer wall of the casing.

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