Bevel gear transmission wedge type double-gate-disc gate valve

Abstract

The utility model relates to the technical field of gate valves, in particular to a bevel gear transmission wedge type double-gate-plate gate valve, which not only facilitates the opening and closing of the valve and reduces the force required by a worker during rotation, but also reduces the abrasion of gate plates and prolongs the service life of the device. Comprising a connecting mechanism; the valve further comprises a sealing mechanism, a lifting mechanism, a closing mechanism, a driving mechanism and an electric driving mechanism, the sealing mechanism is installed on the connecting mechanism and enhances the sealing effect of the valve, the lifting mechanism is installed on the sealing mechanism and drives the closing mechanism to move up and down, and the closing mechanism is installed on the lifting mechanism and plugs the connecting mechanism. The driving mechanism is installed on the lifting mechanism and drives the lifting mechanism to rotate, and the electric driving mechanism is installed on the driving mechanism and assists in driving the driving mechanism to rotate.

Description

Technical Field

[0001] This utility model relates to the technical field of gate valves, and in particular to a bevel gear driven wedge double gate valve. Background Technology

[0002] Gate valves are a common type of pipeline control equipment. They consist of parts such as valve body, valve cover, gate, valve stem, valve seat, bracket, and upper sealing seat. When the handwheel is rotated, it drives the valve stem nut to rotate, and then the valve stem nut drives the valve stem to rise and fall, so as to realize the flow or isolation of the medium.

[0003] Existing gate valves, such as the wedge-type double gate valve disclosed in utility model patent application number 202020410684.3, mainly include a valve body with inlet and outlet channels. A recessed portion is located at the bottom of the middle section of the inlet and outlet channels. The wedge-type double gate includes a first inclined gate and a second inclined gate arranged symmetrically. A connecting plate is located in the middle of both the first and second inclined gates. A fixing hole matching the first through hole is located at the end of the valve stem. Bolts pass sequentially through the first through hole and the fixing hole on the first and second inclined gates. The first inclined gate, the second inclined gate, and the valve stem are fixed by nuts. In use, fluid enters from the inlet end of the inlet and outlet channels of the valve body and then flows through the middle part of the inlet and outlet channels. At this time, the first and second inclined gates of the wedge double gates abut against the top of the auxiliary sealing block in the recessed part, which can better seal the bottom of the wedge double gates. The upper part of the flexible rubber strip is pasted to the lowest point of the valve seat, so that the inner side of the pair of flexible rubber strips abuts against the side walls of the first and second inclined gates respectively, thereby better sealing the wedge double gates in the inlet and outlet channels.

[0004] However, gate valves are generally used in larger diameter pipelines. Gate valves require a large torque to open and close, and relying solely on manual operation requires a huge amount of force. Moreover, the gate plate of existing gate valves is easily worn after long-term use, which affects the sealing performance of the gate valve. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a bevel gear driven wedge double gate valve that not only facilitates the opening and closing of the valve and reduces the force required for the operator to rotate it, but also reduces the wear of the gate plate and extends the service life of the device.

[0006] This utility model discloses a bevel gear driven wedge double gate valve, including a connecting mechanism; it also includes a sealing mechanism, a lifting mechanism, a closing mechanism, a driving mechanism, and an electric drive mechanism. The sealing mechanism is installed on the connecting mechanism and enhances the valve's sealing effect. The lifting mechanism is installed on the sealing mechanism and drives the closing mechanism to move up and down. The closing mechanism is installed on the lifting mechanism and seals the connecting mechanism. The driving mechanism is installed on the lifting mechanism and drives it to rotate. The electric drive mechanism is installed on the driving mechanism and assists in driving the driving mechanism to rotate. When the valve needs to be closed, the operator manually rotates the driving mechanism. If rotating the driving mechanism is difficult, the electric drive mechanism can be activated to assist in rotating the driving mechanism. The driving mechanism drives the lifting mechanism to rotate, and the lifting mechanism drives the closing mechanism to move downward. The closing mechanism, in conjunction with the sealing mechanism, seals the connecting mechanism, preventing fluid from passing through. The sealing mechanism enhances the sealing effect of the device.

[0007] Preferably, the connecting mechanism includes a connecting pipe, two sets of flanges, two sets of rubber baffles, and two sets of upper baffles. The connecting pipe is placed on the working surface, the two sets of flanges are respectively installed on both sides of the connecting pipe, the two sets of rubber baffles are installed inside the connecting pipe, and the two sets of upper baffles are installed inside the connecting pipe. The operator uses bolts to connect the two sets of flanges to the pipe, and the fluid flows through the connecting pipe. The two sets of rubber baffles reduce the wear of the sealing mechanism and extend the service life of the gate valve. The two sets of upper baffles prevent fluid from entering the lifting mechanism.

[0008] Preferably, the sealing mechanism includes a sealing groove, two sets of sealing strips, a drain pipe, and a valve. The top of the sealing groove is internally connected to the bottom of the connecting pipe. Both sets of sealing strips are installed on the sealing groove. The top of the drain pipe is internally connected to the bottom of the sealing groove. The valve is installed on the drain pipe. By setting the sealing groove and two sets of sealing strips, the sealing effect of the sealing mechanism is enhanced, the wear of the sealing mechanism is reduced, and the service life of the gate valve is extended. After long-term use, the valve can be opened to discharge impurities in the sealing groove through the drain pipe.

[0009] Preferably, the lifting mechanism includes a pump body, an equipment box, a valve stem, a sealing ring, a nut, and a first gear. The bottom end of the pump body is internally connected to the top end of the connecting pipe, and the bottom end of the equipment box is connected to the top end of the pump body. The equipment box has an internal cavity. The valve stem is rotatably installed in the cavity of the equipment box. The sealing ring is installed on the valve stem. The nut is installed in the cavity of the pump body and rotatably connected to the valve stem. The first gear is installed on the nut. When it is necessary to close the valve, the drive mechanism drives the first gear to rotate, the first gear drives the nut to rotate, the nut drives the valve stem to move downward, and the valve stem pushes the closing mechanism downward to block the connecting pipe. The sealing ring is used to prevent dust from entering the cavity of the equipment box.

[0010] Preferably, the sealing mechanism includes a connecting plate, a connecting shaft, four sets of ear clips, and two sets of gates. The top end of the connecting plate is connected to the bottom end of the valve stem. The connecting shaft is rotatably mounted on the connecting plate. All four sets of ear clips are mounted on the connecting shaft. The gates are mounted on the two sets of ear clips on the same side. The valve stem pushes the connecting plate downward, and the connecting plate drives the four sets of ear clips and the two sets of gates to slide downward through the connecting shaft. The bottom ends of the two sets of gates are stuck in the sealing groove, and the two sets of gates block the connecting pipe.

[0011] Preferably, the drive mechanism includes a drive shaft, a handwheel, a first bevel gear, a driven shaft, a second bevel gear, and a second gear. The drive shaft is rotatably mounted in the cavity of the equipment housing. The handwheel is mounted on the drive shaft, the first bevel gear is mounted on the drive shaft, the driven shaft is rotatably mounted in the cavity of the equipment housing, the driven shaft is mounted on the first bevel gear, and the second bevel gear is mounted on the first bevel gear and meshes with the first gear for transmission. When the operator rotates the handwheel, the handwheel drives the drive shaft and the first bevel gear to rotate. The first bevel gear and the second bevel gear mesh for transmission. The second bevel gear drives the driven shaft and the second gear to rotate, and the second gear drives the first gear to rotate.

[0012] Preferably, the electric drive mechanism includes a rain shelter, a socket, a motor, and a reducer. The rain shelter is installed on the equipment box, the socket is installed on the equipment box, the motor is installed on the equipment box, and the reducer is installed on the equipment box and longitudinally connected to the drive shaft. When the operator connects the socket to the power supply, the socket starts the motor through an electrical signal. The motor drives the drive shaft to rotate through the reducer, assisting the operator in rotating the drive shaft. The rain shelter prevents rainwater from entering the socket and causing a short circuit.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: when the valve needs to be closed, the operator can manually rotate the drive mechanism. When it is difficult to rotate the drive mechanism, the electric drive mechanism can be activated to assist in rotating the drive mechanism. The drive mechanism drives the lifting mechanism to rotate, and the lifting mechanism drives the closing mechanism to move downward. The closing mechanism cooperates with the sealing mechanism to block the connecting mechanism and prevent fluid from passing through. The sealing effect of the device is enhanced by setting the sealing mechanism. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a partially enlarged cross-sectional isometric structural diagram of the connection mechanism and sealing mechanism of this utility model;

[0016] Figure 3 This is a partially enlarged cross-sectional isometric structural diagram of the lifting mechanism and the closing mechanism of this utility model;

[0017] Figure 4 This is a partially enlarged cross-sectional isometric structural diagram of the drive mechanism of this utility model;

[0018] Figure 5 This is a partially enlarged rear view schematic diagram of the drive mechanism and electric drive mechanism of this utility model.

[0019] The attached diagram is labeled as follows: 01, connecting mechanism; 11, connecting pipe; 12, flange; 13, rubber baffle; 14, upper baffle; 02, sealing mechanism; 21, sealing groove; 22, sealing strip; 23, drain pipe; 24, valve; 03, lifting mechanism; 31, pump body; 32, equipment box; 33, valve stem; 34, sealing ring; 35, nut; 36, first gear; 04, sealing mechanism; 41, connecting plate; 42, connecting shaft; 43, lug; 44, gate; 05, drive mechanism; 51, transmission shaft; 52, handwheel; 53, first bevel gear; 54, driven shaft; 55, second bevel gear; 56, second gear; 06, electric drive mechanism; 61, rain shelter; 62, socket; 63, electric motor; 64, reducer. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] This utility model discloses a bevel gear driven wedge-type double gate valve, including a connecting mechanism 01; it also includes a sealing mechanism 02, a lifting mechanism 03, a closing mechanism 04, a driving mechanism 05, and an electric drive mechanism 06. The sealing mechanism 02 is mounted on the connecting mechanism 01 and enhances the valve's sealing effect. The lifting mechanism 03 is mounted on the sealing mechanism 02 and drives the closing mechanism 04 to move up and down. The closing mechanism 04 is mounted on the lifting mechanism 03 and seals the connecting mechanism 01. The driving mechanism 05 is mounted on the lifting mechanism 03 and drives the lifting mechanism 03 to rotate. The electric drive mechanism 06 is mounted on the driving mechanism 05 and assists in driving the driving mechanism 05 to rotate. The connecting mechanism 01 includes... The system includes a connecting pipe 11, two sets of flanges 12, two sets of rubber baffles 13, and two sets of upper baffles 14. The connecting pipe 11 is placed on the working surface. The two sets of flanges 12 are respectively installed on both sides of the connecting pipe 11. Both sets of rubber baffles 13 and both sets of upper baffles 14 are installed inside the connecting pipe 11. The sealing mechanism 02 includes a sealing groove 21, two sets of sealing strips 22, a drain pipe 23, and a valve 24. The top of the sealing groove 21 is connected to the bottom of the connecting pipe 11. Both sets of sealing strips 22 are installed on the sealing groove 21. The top of the drain pipe 23 is connected to the bottom of the sealing groove 21. The valve 24 is installed on the drain pipe 23. The lifting mechanism 03... The system includes a pump body 31, an equipment box 32, a valve stem 33, a sealing ring 34, a nut 35, and a first gear 36. The bottom end of the pump body 31 is internally connected to the top end of the connecting pipe 11. The bottom end of the equipment box 32 is connected to the top end of the pump body 31. The equipment box 32 has an internal cavity. The valve stem 33 is rotatably mounted in the cavity of the equipment box 32. The sealing ring 34 is mounted on the valve stem 33. The nut 35 is mounted in the cavity of the pump body 31 and rotatably connected to the valve stem 33. The first gear 36 is mounted on the nut 35. The closing mechanism 04 includes a connecting plate 41, a connecting shaft 42, four sets of lugs 43, and two sets of gates 44. The top end of the connecting plate 41 is connected to the bottom end of the valve stem 33. The connecting shaft 42 is rotatably mounted on the connecting plate 41, and four sets of ear buckles 43 are all mounted on the connecting shaft 42. The gate plate 44 is mounted on two sets of ear buckles 43 on the same side. The drive mechanism 05 includes a drive shaft 51, a handwheel 52, a first bevel gear 53, a driven shaft 54, a second bevel gear 55, and a second gear 56. The drive shaft 51 is rotatably mounted in the cavity of the equipment box 32, the handwheel 52 is mounted on the drive shaft 51, the first bevel gear 53 is mounted on the drive shaft 51, the driven shaft 54 ​​is rotatably mounted in the cavity of the equipment box 32, the driven shaft 54 ​​is mounted on the first bevel gear 53, and the second bevel gear 55 is mounted on the first bevel gear 53 and meshes with the first gear 36 for transmission.During operation, the operator first connects the two sets of flanges 12 to the pipeline using bolts. Fluid flows through the connecting pipe 11. When the valve needs to be closed, the operator rotates the handwheel 52. The handwheel 52 drives the drive shaft 51 and the first bevel gear 53 to rotate. The first bevel gear 53 and the second bevel gear 55 mesh and drive each other. The second bevel gear 55 drives the driven shaft 54 ​​and the second gear 56 to rotate. The second gear 56 drives the first gear 36 to rotate. The first gear 36 drives the nut 35 to rotate. The nut 35 drives the valve stem 33 to move downward. The valve stem 33 pushes the connecting plate 41 downward. The connecting plate 41 drives the four sets of lugs 43 and the two sets of gates through the connecting shaft 42. Plate 44 slides downwards, and the bottom ends of the two sets of gate plates 44 are locked in the sealing groove 21. The two sets of gate plates 44 block the connecting pipe 11. The sealing ring 34 prevents dust from entering the cavity of the equipment box 32. The sealing groove 21 and two sets of sealing strips 22 enhance the sealing effect of the sealing mechanism 04 and reduce the wear of the sealing mechanism 04, thus extending the service life of the gate valve. After long-term use, the valve 24 can be opened to discharge impurities in the sealing groove 21 through the drain pipe 23. The two sets of rubber baffles 13 reduce the wear of the sealing mechanism 04 and extend the service life of the gate valve. The two sets of upper baffles 14 prevent fluid from entering the lifting mechanism 03.

[0023] Example 2

[0024] like Figures 1 to 5As shown, this utility model discloses a bevel gear driven wedge-type double gate valve, based on embodiment 1. The electric drive mechanism 06 includes a rain shelter 61, a socket 62, a motor 63, and a reducer 64. The rain shelter 61 is mounted on the equipment box 32, the socket 62 is mounted on the equipment box 32, the motor 63 is mounted on the equipment box 32, and the reducer 64 is mounted on the equipment box 32 and longitudinally connected to the drive shaft 51. During operation, the operator first uses bolts to connect two sets of flanges 12 to the pipeline, and the fluid flows through the connecting pipe 11. When the valve needs to be closed, the operator rotates the handwheel 52, which drives the drive shaft 51 and the first bevel gear 53 to rotate. When the torque is too large, the operator connects the socket 62 to the power supply. The socket 62 starts the motor 63 through an electrical signal. The motor 63 drives the drive shaft 51 to rotate through the reducer 64, assisting the operator in rotating the drive shaft 51. The rain shelter 61 prevents rainwater from entering the socket 62 and causing a short circuit. The first bevel gear 53 and the second bevel gear... The gears 55 mesh and drive each other. The second bevel gear 55 drives the driven shaft 54 ​​and the second gear 56 to rotate. The second gear 56 drives the first gear 36 to rotate. The first gear 36 drives the nut 35 to rotate. The nut 35 drives the valve stem 33 to move downward. The valve stem 33 pushes the connecting plate 41 downward. The connecting plate 41 drives the four sets of ear buckles 43 and the two sets of gate plates 44 to slide downward through the connecting shaft 42. The bottom ends of the two sets of gate plates 44 are stuck in the sealing groove 21, and the two sets of gate plates 44 block the connecting pipe 11. By setting the sealing ring 34, To prevent dust from entering the cavity of the equipment box 32, the sealing effect of the sealing mechanism 04 is enhanced by setting a sealing groove 21 and two sets of sealing strips 22, which also reduces the wear of the sealing mechanism 04 and extends the service life of the gate valve. After long-term use, the valve 24 can be opened to discharge the impurities in the sealing groove 21 through the drain pipe 23. The wear of the sealing mechanism 04 is reduced by setting two sets of rubber baffles 13, which extends the service life of the gate valve. The fluid is prevented from entering the lifting mechanism 03 by setting two sets of upper baffles 14.

[0025] The electric motor 63 and the reducer 64 of this utility model are commercially available. Those skilled in the industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A bevel gear driven wedge-type double gate valve, comprising a connecting mechanism (01); characterized in that, It also includes a sealing mechanism (02), a lifting mechanism (03), a closing mechanism (04), a driving mechanism (05), and an electric drive mechanism (06). The sealing mechanism (02) is installed on the connecting mechanism (01) and enhances the valve sealing effect. The lifting mechanism (03) is installed on the sealing mechanism (02) and drives the closing mechanism (04) to move up and down. The closing mechanism (04) is installed on the lifting mechanism (03) and blocks the connecting mechanism (01). The driving mechanism (05) is installed on the lifting mechanism (03) and drives the lifting mechanism (03) to rotate. The electric drive mechanism (06) is installed on the driving mechanism (05) and assists in driving the driving mechanism (05) to rotate.

2. The bevel gear driven wedge double gate valve as described in claim 1, characterized in that, The connecting mechanism (01) includes a connecting pipe (11), two sets of flanges (12), two sets of rubber baffles (13) and two sets of upper baffles (14). The connecting pipe (11) is placed on the working surface. The two sets of flanges (12) are respectively installed on both sides of the connecting pipe (11). The two sets of rubber baffles (13) are installed inside the connecting pipe (11). The two sets of upper baffles (14) are installed inside the connecting pipe (11).

3. The bevel gear driven wedge double gate valve as described in claim 2, characterized in that, The sealing mechanism (02) includes a sealing groove (21), two sets of sealing strips (22), a drain pipe (23) and a valve (24). The top of the sealing groove (21) is connected to the bottom of the connecting pipe (11). Both sets of sealing strips (22) are installed on the sealing groove (21). The top of the drain pipe (23) is connected to the bottom of the sealing groove (21). The valve (24) is installed on the drain pipe (23).

4. The bevel gear driven wedge-type double gate valve as described in claim 2, characterized in that, The lifting mechanism (03) includes a pump body (31), an equipment box (32), a valve stem (33), a sealing ring (34), a nut (35), and a first gear (36). The bottom end of the pump body (31) is connected to the top end of the connecting pipe (11). The bottom end of the equipment box (32) is connected to the top end of the pump body (31). The equipment box (32) has a cavity inside. The valve stem (33) is rotatably installed in the cavity of the equipment box (32). The sealing ring (34) is installed on the valve stem (33). The nut (35) is installed in the cavity of the pump body (31) and rotatably connected to the valve stem (33). The first gear (36) is installed on the nut (35).

5. A bevel gear driven wedge-type double gate valve as described in claim 4, characterized in that, The closing mechanism (04) includes a connecting plate (41), a connecting shaft (42), four sets of ear clips (43) and two sets of gates (44). The top of the connecting plate (41) is connected to the bottom of the valve stem (33). The connecting shaft (42) is rotatably mounted on the connecting plate (41). All four sets of ear clips (43) are mounted on the connecting shaft (42). The gates (44) are mounted on the two sets of ear clips (43) on the same side.

6. A bevel gear driven wedge-type double gate valve as described in claim 4, characterized in that, The drive mechanism (05) includes a drive shaft (51), a handwheel (52), a first bevel gear (53), a driven shaft (54), a second bevel gear (55), and a second gear (56). The drive shaft (51) is rotatably mounted in the cavity of the equipment box (32). The handwheel (52) is mounted on the drive shaft (51). The first bevel gear (53) is mounted on the drive shaft (51). The driven shaft (54) is rotatably mounted in the cavity of the equipment box (32). The driven shaft (54) is mounted on the first bevel gear (53). The second bevel gear (55) is mounted on the first bevel gear (53) and meshes with the first gear (36) for transmission.

7. A bevel gear driven wedge-type double gate valve as described in claim 6, characterized in that, The electric drive mechanism (06) includes a rain shelter (61), a socket (62), a motor (63), and a reducer (64). The rain shelter (61) is mounted on the equipment box (32), the socket (62) is mounted on the equipment box (32), the motor (63) is mounted on the equipment box (32), and the reducer (64) is mounted on the equipment box (32) and longitudinally connected to the drive shaft (51).

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