Gas valve with insulating joint

Abstract

The utility model discloses a gas valve with an insulating joint, which comprises a valve body, a valve ball and a driving rod, the valve ball is positioned in the valve body, one end of the driving rod is arranged on the valve ball, the other end of the driving rod penetrates out of the upper end of the valve body, and the insulating joint is arranged on the valve ball. A driving device is arranged at the end, away from the valve ball, of the driving rod and comprises a driving motor, a first gear and a second gear, the first gear is fixedly connected to the outer end of the driving rod in a sleeving mode, and the second gear is fixedly connected to the output end of the driving motor in a sleeving mode; the first gear and the second gear are meshed with each other, the outer end of the driving rod is connected into the outer side wall of the mounting box in a penetrating mode, a driving groove is formed in the outer end of the driving rod, and an internal hexagonal wrench can be inserted into the driving groove in a matched mode. The gas valve has the effect of improving the stability of the gas valve under the power failure condition.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve, in particular to a gas valve with insulation joint. BACKGROUND

[0002] The gas valve is a new type of safety supporting device for gas pipeline engineering, which is used for cutting off, connecting and adjusting the gas in the pipeline, and has good control characteristics and sealing performance. After the connection and installation of the gas valve are completed, the switch of the gas valve needs to be opened, and then the gas stove can work. After the gas stove stops working, the user may forget to close the switch due to some reasons. When the gas stove is idle, the gas pipe may leak from the gas stove, so there is an automatic gas valve on the market. Under the drive of the driving device, the valve ball is rotated by the valve rod, which can prevent the switch from being forgotten to close. When power failure occurs, the motor in the driving device needs power drive, so that the gas valve cannot operate normally. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at the defects and deficiencies of prior art, provides a gas valve with insulation joint.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] It comprises a valve body, a valve ball and a driving rod, the valve ball is located in the valve body, one end of the driving rod is arranged on the valve ball, the other end of the driving rod is out of the upper end of the valve body, the driving device is arranged at the end away from the valve ball of the driving rod, the upper part of the valve body is provided with a mounting box, the driving device is located in the mounting box, the driving device comprises a driving motor, a first gear and a second gear, the first gear is sleeved and fixed on the outer end of the driving rod, the second gear is sleeved and fixed on the output end of the driving motor, the first gear and the second gear are meshed with each other, the outer end of the driving rod is connected in the outer side wall of the mounting box, the outer end of the driving rod is provided with a driving groove, and the driving groove is matched with the inner hexagonal wrench.

[0006] Preferably, the first gear and the second gear are bevel gears.

[0007] Preferably, the side wall of the mounting box is connected with a driving piece, the driving piece comprises a driving block and a sliding rod, the driving block is arranged at the inner end of the sliding rod, the sliding rod is inserted and slides in the side wall of the mounting box, the driving block has a guide inclined surface matched with the side wall of the second gear at the end away from the sliding rod, a return spring is arranged between the second gear and the driving motor, and the return spring drives the second gear and the first gear to approach each other.

[0008] Preferably, the lower end of the mounting box is provided with a fixing buckle, and the upper end of the valve body is provided with a fixing groove for clamping and fixing the fixing buckle.

[0009] Preferably, the lower end surface of the first gear is provided with a limiting elastic sheet, and the bottom of the mounting box is uniformly provided with a plurality of limiting grooves for clamping and matching one end of the limiting elastic sheet.

[0010] Preferably, the mounting box comprises a box body and a box cover, and one end of the box cover is rotationally connected to the box body.

[0011] Preferably, the upper end of the driving rod is clamped and fixed with a locking elastic sheet, and the inner end of the locking elastic sheet abuts against the upper end of the first gear.

[0012] To sum up, the beneficial technical effects of the present application are as follows:

[0013] When the customer needs to open the switch of the gas stove, the sensor on the gas stove will be touched, and then the driving motor is started. Under the mutual engagement of the first gear and the second gear, the driving rod is driven to rotate, thereby rotating the valve ball in the valve body, so that the flow channel in the valve body is in an open state. Then the gas in the gas pipe flows out from the outlet of the gas stove. When the switch of the gas stove is closed, the sensor will transmit a signal to the driving motor, so that the output end of the driving motor reversely rotates. Under the mutual engagement of the first gear and the second gear, the driving rod drives the valve ball to rotate, so that the valve ball blocks the channel of the valve body, thereby preventing gas leakage and improving the safety of the gas valve. When power failure occurs, one end of the inner hexagonal wrench can be inserted into the driving groove, and then the inner hexagonal wrench is rotated to drive the valve ball to rotate through the driving rod, so that the gas valve can be opened or closed in the case of power failure, thereby improving the stability of the gas valve in the case of power failure. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a sectional view of the gas valve of the present application;

[0015] Figure 2 is Figure 1 is an enlarged view of A in FIG. 4;

[0016] Figure 3 is an exploded view of the gas valve of the present application;

[0017] Figure 4 is an exploded view of the driving device and the driving member of the present application;

[0018] Figure 5 is a sectional view of the mounting box of the present application.

[0019] In the figure: 1, valve body; 2, valve ball; 3, drive rod; 4, valve seat; 5, drive device; 6, mounting box; 7, drive motor; 8, first gear; 9, second gear; 10, limiting elastic sheet; 11, connecting sheet; 12, limiting block; 13, limiting plate; 14, limiting groove; 15, ring groove; 16, locking elastic sheet; 17, box body; 18, box cover; 19, fixed buckle; 20, fixed groove; 21, drive groove; 22, drive piece; 23, pressing seat; 24, drive block; 25, sliding rod; 26, guide inclined surface; 27, reset spring; 28, first ring block; 29, second ring block. DETAILED DESCRIPTION

[0020] The utility model will be further explained in connection with the drawings below.

[0021] The application discloses a gas valve with an insulating joint.

[0022] Referring to Figure 1 , including valve body 1, valve ball 2 and drive rod 3, valve ball 2 is rotatably connected in the valve body 1, one end of drive rod 3 is inserted and fixed in valve ball 2, the upper end surface of valve body 1 is integrally provided with valve seat 4, the other end of drive rod 3 passes out from the outer end of valve seat 4, the outer end of drive rod 3 is placed with drive device 5, the upper end of valve seat 4 is installed with mounting box 6, and drive device 5 is located in mounting box 6.

[0023] Referring to Figure 2 and Figure 4 , drive device 5 includes drive motor 7, first gear 8 and second gear 9, first gear 8 is sleeved and fixed on the upper end of drive rod 3, drive motor 7 is horizontally placed at the bottom of mounting box 6, second gear 9 is sleeved and fixed on the output end circumferential side of drive motor 7, first gear 8 is engaged with second gear 9, and first gear 8 and second gear 9 are both bevel gears.When the switch of the gas stove is opened, the sensor on the gas stove will be touched, then drive motor 7 is started, under the mutual engagement of first gear 8 and second gear 9, drive rod 3 is driven to rotate, so that valve ball 2 rotates in valve body 1, so that the flow channel in valve body 1 is in an open state, then the gas in the gas pipe flows out from the outlet of the gas stove, when the switch of the gas stove is closed, the sensor will transmit a signal to drive motor 7, so that the output end of drive motor 7 reversely rotates, under the mutual engagement of first gear 8 and second gear 9, drive rod 3 drives valve ball 2 to rotate, so that valve ball 2 blocks the channel of valve body 1.

[0024] The upper end of the driving rod 3 is out of the upper end surface of the mounting box 6 and flush with the upper end surface of the mounting box 6, and the upper end surface of the driving rod 3 is provided with a driving groove 21, which can be inserted and matched with one end of an internal hexagonal wrench. When a power failure occurs, one end of the internal hexagonal wrench can be inserted into the driving groove 21, and then the internal hexagonal wrench is rotated to drive the valve ball 2 to rotate through the driving rod 3, so that the gas valve can be opened or closed in the case of power failure.

[0025] The driving member 22 is placed above the second gear 9, and the driving member 22 includes a pressing seat 23, a driving block 24 and a sliding rod 25. The sliding rod 25 is vertically placed and slidably inserted into the upper side wall of the mounting box 6. The driving block 24 is welded and fixed to the lower end of the sliding rod 25. The pressing seat 23 is installed on the upper end surface of the mounting box 6. The vertical section of the pressing seat 23 is in the shape of a "U" and is made of rubber. The upper end of the sliding rod 25 is located in the mounting box 6. A first ring block 28 is integrally arranged on the circumferential side of the upper end of the sliding rod 25. A second ring block 29 is circumferentially and integrally arranged on the inner circumferential side of the pressing seat 23. When the upper end of the sliding rod 25 is installed in the pressing seat 23, the first ring block 28 is located above the second ring block 29 and is fixed by clamping. A guide inclined surface 26 is arranged on the lower end of the driving block 24. The second gear 9 and the driving motor 7 have a return spring 27. The return spring 27 is sleeved on the circumferential side of the output shaft of the driving motor 7. When manual driving of the valve ball 2 is required, the pressing seat 23 is first pressed, and then the sliding rod 25 slides downward to drive the driving block 24 to move downward. Under the action of the guide inclined surface 26, the second gear 9 can be separated from the first gear 8. Then the driving rod 3 can be rotated by the internal hexagonal wrench. In this process, the second gear 9 will not affect the first gear 8. Since the probability of power failure is small, the driving block 24 has less opportunity to contact the second gear 9, so that the wear rate of the working surface of the driving block 24 on the second gear 9 is low.

[0026] Referring to Figure 3 , the lower end surface of the mounting box 6 is circumferentially and uniformly integrally provided with two fixed buckles 19. The vertical section of the fixed buckle 19 is in the shape of a "L". The upper end surface of the valve seat 4 is circumferentially and uniformly provided with two fixed grooves 20. The fixed groove 20 is composed of a sliding groove and a locking groove. The lower end of the fixed buckle 19 is inserted from the sliding groove, and then the mounting box 6 is rotated to slide the fixed buckle 19 into the locking groove.

[0027] Referring to Figure 5The lower end surface of the first gear 8 is integrally provided with a limiting spring 10, the limiting spring 10 comprises a connecting piece 11 and a limiting block 12, the limiting block 12 is in a semispherical shape, the limiting block 12 is integrally arranged on the lower side of one end of the connecting piece 11, the vertical section of the connecting piece 11 is in an L shape, the other end of the connecting piece 11 is integrally arranged on the lower end of the first gear 8, the upper end surface of the valve seat 4 is fixedly provided with two limiting plates 13 in the circumferential direction, the angle of the two limiting plates 13 is 90°, the opposite side walls of the two limiting plates 13 are respectively embedded with a limiting switch, when the connecting piece 11 contacts with the limiting switch, the driving motor 7 stops working, the connecting piece 11 moves between the two limiting plates 13, the valve seat 4 is uniformly provided with a plurality of limiting grooves 14 in the circumferential direction between the two limiting plates 13, and the limiting block 12 is clamped and fixed in one of the limiting grooves 14.

[0028] The upper end of the driving rod 3 is circumferentially provided with a ring groove 15, the ring groove 15 is embedded with a locking spring 16, the locking spring 16 is curved downward from inside to outside, and the lower end surface of the outer circumferential side of the locking spring 16 abuts against the upper end surface of the first gear 8.

[0029] Referring to Figure 1 The mounting box 6 comprises a box body 17 and a box cover 18, one end of the box cover 18 is rotatably connected to the upper side of one end of the box body 17, and the other end of the box cover 18 is fixed to the other end of the box body 17 through a lock catch.

[0030] The above is only a preferred embodiment of the present application, therefore, equivalent changes or modifications made according to the structure, features and principles of the present application patent application range are included in the present application patent application range.

Claims

1. A gas valve with insulated joint, comprising a valve body (1), a valve ball (2) and a driving rod (3), the valve ball (2) is located in the valve body (1), one end of the driving rod (3) is arranged on the valve ball (2), the other end of the driving rod (3) passes out from the upper end of the valve body (1), characterized in that: The driving rod (3) is provided with a driving device (5) at the end far from the valve ball (2), the valve body (1) is provided with a mounting box (6) above, the driving device (5) is located in the mounting box (6), the driving device (5) comprises a driving motor (7), a first gear (8) and a second gear (9), the first gear (8) is sleeved and fixed to the outer end of the driving rod (3), the second gear (9) is sleeved and fixed to the output end of the driving motor (7), the first gear (8) and the second gear (9) are engaged with each other, the outer end of the driving rod (3) is inserted into the outer side wall of the mounting box (6), the outer end of the driving rod (3) is provided with a driving groove (21), and the driving groove (21) can be inserted and matched with an internal hex wrench. ​ 2. A gas valve with insulated joint according to claim 1, characterized in that, The first gear (8) and the second gear (9) are bevel gears.

3. A gas valve with insulated joint according to claim 1, characterized in that, The side wall of the mounting box (6) is inserted with a driving piece (22), the driving piece (22) comprises a driving block (24) and a sliding rod (25), the driving block (24) is arranged at the inner end of the sliding rod (25), the sliding rod (25) is inserted and slides in the side wall of the mounting box (6), the driving block (24) is provided with a guide inclined surface (26) at the end far from the sliding rod (25), the guide inclined surface (26) is matched with the side wall of the second gear (9), the second gear (9) and the driving motor (7) are provided with a reset spring (27), the reset spring (27) drives the second gear (9) and the first gear (8) to be close to each other.

4. A gas valve with insulated joints as defined in claim 1, characterized in that The lower end of the mounting box (6) is provided with a fixing buckle (19), and the upper end of the valve body (1) is provided with a fixing groove (20) for clamping and fixing the fixing buckle (19).

5. A gas valve with insulated joints as defined in claim 1, wherein, The lower end surface of the first gear (8) is provided with a limiting spring (10), and the bottom of the mounting box (6) is uniformly provided with a plurality of limiting grooves (14) for clamping and matching one end of the limiting spring (10).

6. A gas valve with insulated joints as defined in claim 1, wherein, The mounting box (6) comprises a box body (17) and a box cover (18), one end of the box cover (18) is rotatably connected to the box body (17).

7. A gas valve with insulated joints as defined in claim 1, characterized in that The locking spring (16) is clamped and fixed on the outer side of the upper end of the driving rod (3), and the inner end of the locking spring (16) abuts against the upper end of the first gear (8).

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