Auxiliary opening and closing device for underground well gate valve

Abstract

The utility model belongs to the technical field of underground well gate valves, and particularly relates to an underground well gate valve auxiliary opening and closing device which comprises the ground and an underground well arranged under the ground, a gate valve is arranged at the bottom of the underground well, a trolley is arranged above the ground, and an auxiliary mechanism is arranged above the trolley. The auxiliary mechanism comprises a lifting unit and an opening and closing unit; the lifting unit comprises a containing box, a connecting plate and an electric push rod, the bottom of the containing box is fixedly connected to a bottom plate of the trolley, through holes are formed in the bottom of the containing box and the bottom plate of the trolley, and the electric push rod is fixedly connected to the connecting plate. According to the auxiliary opening and closing device for the underground well gate valve, the clamping jaw can be easily conveyed to the underground well gate valve through the lifting unit and the opening and closing unit, accurate adjustment of the opening or closing position of the gate valve is achieved through accurate control of the stepping motor, operation convenience is improved, and operation accuracy and safety are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground well gate valve technical field, concretely is a kind of underground well gate valve auxiliary opening and closing device. BACKGROUND

[0002] Underground well gate valve is usually used to control fluid flow in underground pipeline, such as tap water, sewage, natural gas, etc. Due to the limited space of underground well, and the environment is humid, dim, there are certain difficulties when operating the gate valve. The important fluid control equipment of underground well gate valve is usually widely used to control the fluid flow in the complex underground pipeline system, which includes but is not limited to the indispensable tap water in daily life, sewage treated in urban drainage system and natural gas transported in energy supply network, etc.

[0003] The space of underground well is limited, and the gate valve is usually installed in narrow well chamber, which makes the operator greatly limited in space when opening or closing the gate valve, and it is difficult to operate. Because of the deposition of material between the gate and the valve seat, or the rust and bending of the valve stem, and the over-tight fit between the gate and the valve seat, the gate valve may be stuck, and cannot be smoothly opened or closed.

[0004] Therefore, we propose an underground well gate valve auxiliary opening and closing device to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing an underground well gate valve auxiliary opening and closing device to solve the opening difficulty problem caused by the self-problems of the gate valve in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an underground well gate valve auxiliary opening and closing device, comprising a ground and an underground well opened under the ground, the bottom of the underground well is provided with a gate valve, the ground is provided with a handcart above, the handcart is provided with an auxiliary mechanism above;

[0007] The auxiliary mechanism comprises a lifting unit and an opening and closing unit;

[0008] The lifting unit comprises a placing box, a connecting plate and an electric push rod, the bottom of the placing box is fixedly connected to the bottom plate of the handcart, the bottom of the placing box and the bottom plate of the handcart are both provided with through holes, the electric push rod is fixedly connected to the connecting plate, and the output end of the electric push rod penetrates through the through hole and extends downward.

[0009] Preferably, the opening and closing unit comprises a case, a rotating shaft, a motor, a worm, a fixed block, a worm wheel, a rotating disc, a connecting seat, bolts and a claw, the upper surface of the case is fixedly connected to the output end of the electric push rod, the bottom of the worm wheel is connected to the inner bottom surface of the case through a bearing, the rotating shaft is fixedly connected to the middle part of the worm wheel, the worm is meshedly connected to the worm wheel, the worm is fixedly connected between the two fixed blocks, the bottom of the fixed block is fixedly connected to the inner bottom surface of the case, the output end of the motor is connected to the worm through a shaft coupling, the bottom of the rotating shaft is fixedly connected to the upper surface of the rotating disc, the connecting seat is threadedly connected to the bottom surface of the rotating disc through the bolts, and the claw is fixedly connected to the connecting seat.

[0010] Preferably, the inside of the case is provided with a heat dissipation structure, the heat dissipation structure comprises a ventilation bin, a flow guide inclined plate and a filter screen, the ventilation bin is arranged on the two sides of the case, the flow guide inclined plate is arranged in the ventilation bin, and the filter screen is arranged on the inner side of the case.

[0011] Preferably, the gate valve is provided with connecting pipes at two ends, and the claw is clamped on the gate valve.

[0012] Preferably, all the metal parts of the underground well gate valve opening and closing unit are subjected to corrosion prevention treatment, so that the service life of the equipment can be effectively prolonged, and the failure and maintenance cost caused by corrosion can be reduced.

[0013] Preferably, the motor adopts a stepping motor, so that accurate angle rotation can be realized, the opening or closing position of the gate valve can be accurately adjusted, the use of the stepping motor also improves the automation degree of operation and reduces manual intervention.

[0014] Preferably, a damping pad is arranged between the connecting seat and the rotating disc, the damping pad is made of an elastic material, can effectively absorb and disperse the vibration and impact force generated in the operation process, protects the connecting seat and the rotating disc from being damaged, and improves the stability and comfort of operation.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1.The underground well gate valve auxiliary opening and closing device can easily send the clamping jaw to the underground well gate valve through the lifting unit and the opening and closing unit, and accurately adjust the opening or closing position of the gate valve through the precise control of the stepping motor, which not only improves the convenience of operation, but also ensures the accuracy and safety of operation.

[0017] 2.The underground well gate valve auxiliary opening and closing device is provided with a heat dissipation structure inside the device, which effectively discharges the heat inside the case, prevents the motor and other components from being damaged due to overheating, and prolongs the service life of the equipment and reduces the failure and maintenance cost caused by corrosion. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the underground well of the utility model;

[0019] Figure 2 is a schematic view of the overall front structure of the utility model;

[0020] Figure 3 is a schematic view of the front structure of the case of the utility model;

[0021] Figure 4 is a schematic view of the internal structure of the case of the utility model;

[0022] Figure 5 is a schematic view of the clamping jaw structure of the utility model.

[0023] In the figure: 1 ground, 2 underground well, 201 gate valve, 3 trolley, 4 placing box, 401 connecting plate, 402 electric push rod, 5 case, 501 rotating shaft, 502 flow guide inclined plate, 503 filter screen plate, 504 motor, 505 worm, 506 fixed block, 507 ventilation bin, 508 worm gear, 6 rotating disc, 601 connecting seat, 602 bolt, 603 clamping jaw. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0026] Embodiment one:

[0027] The utility model provides an underground well gate valve auxiliary opening and closing device, including ground 1 and setting up underground well 2 under the ground 1 bottom, the bottom of underground well 2 is provided with gate valve 201, and the both ends of gate valve 201 are provided with connecting pipe, and underground well 2 is the installation position of gate valve 201, and it is convenient to carry out the cutting or opening operation to pipeline. Gate valve 201 is used for controlling the fluid flow of underground pipeline, and is the core component of the device, and by the opening and closing of gate valve 201, the cutting or communication of pipeline can be realized. Claw 603 is clamped to gate valve 201. Handcart 3 is arranged above ground 1, and handcart 3 provides the mobility of the device, and it is convenient to transport the auxiliary opening and closing device to underground well 2. Auxiliary mechanism is arranged above handcart 3.

[0028] Auxiliary mechanism includes lifting unit;

[0029] Lifting unit includes placing box 4, connecting plate 401 and electric push rod 402, and the bottom of placing box 4 is fixedly connected to the bottom plate of handcart 3, and the bottom of placing box 4 and the bottom plate of handcart 3 are both provided with through holes, and the output end of electric push rod 402 is fixedly connected to connecting plate 401, and the output end of electric push rod 402 penetrates through the through hole and extends downward, and electric push rod 402 can adjust the height of the machine box by controlling the extension and retraction of the output end, so as to facilitate the butt joint with gate valve 201.

[0030] Embodiment two:

[0031] On the basis of embodiment one, the auxiliary mechanism further includes opening and closing unit;Opening and closing unit includes machine box 5, rotating shaft 501, motor 504, worm 505, fixed block 506, worm gear 508, rotating disc 6, connecting seat 601, bolt 602 and claw 603, the upper surface of machine box 5 is fixedly connected to the output end of electric push rod 402, the bottom of worm gear 508 is connected to the inner bottom surface of machine box 5 through bearing, rotating shaft 501 is fixedly connected to the middle part of worm gear 508, worm 505 is meshingly connected to worm gear 508, worm 505 is fixedly connected between the two fixed blocks 506, the bottom of fixed block 506 is fixedly connected to the inner bottom surface of machine box 5, the output end of motor 504 is connected to worm 505 through shaft coupling, and motor 504 adopts stepping motor 504. The bottom of rotating shaft 501 is fixedly connected to the upper surface of rotating disc 6, connecting seat 601 is screwedly connected to the bottom surface of rotating disc 6 through bolt 602, and damping pad is arranged between connecting seat 601 and rotating disc 6. Claw 603 is fixedly connected to connecting seat 601, machine box 5 serves as the supporting structure of opening and closing unit, and the internal transmission components are protected, rotating shaft 501, worm gear 508, worm 505, motor 504 and other components form a transmission system, and the rotary control of claw 603 is realized. Claw 603 is fixed on rotating disc 6 through connecting seat 601 and bolt 602, is used for butt joint with gate valve 201, and realizes the opening and closing operation of gate valve 201.

[0032] The chassis 5 is internally provided with a heat dissipation structure, which comprises a ventilation bin 507, a flow guide inclined plate 502 and a filter screen plate 503. The ventilation bin 507 is opened on both sides of the chassis 5, the flow guide inclined plate 502 is arranged inside the ventilation bin 507, and the filter screen plate 503 is arranged on the inner side of the chassis 5. All metal parts of the underground well gate valve opening and closing unit are subjected to corrosion prevention treatment. The heat dissipation structure composed of the ventilation bin 507, the flow guide inclined plate 502 and the filter screen plate 503 effectively reduces the temperature inside the chassis 5. The ventilation bin 507 provides an air flow passage, the flow guide inclined plate 502 guides the air flow direction, and the filter screen plate 503 prevents dust from entering the inside of the chassis 5, thereby ensuring the normal operation of the opening and closing unit in a high temperature environment.

[0033] Working principle: Push the trolley 3 to the underground well 2, and ensure that the device is stable. When the gate valve needs to be operated, the electric push rod 402 receives the instruction and starts to work. The output end of the electric push rod 402 adjusts the height of the chassis 5 through the telescopic action, so that the pawl 603 at the bottom of the chassis 5 can be accurately docked to the operating position of the gate valve 201.

[0034] Then start the stepper motor 504. After receiving the instruction, the stepper motor 504 starts to rotate and drives the worm 505 to rotate through the shaft coupling. The worm 505 meshes with the worm gear 508 to transmit the rotary motion to the worm gear 508. The worm gear 508 is fixed on the rotating shaft 501, so the rotation of the worm gear will drive the rotating shaft 501 to rotate together. The rotating shaft 501 is connected to the rotating disc 6 at the bottom, and the rotating disc 6 rotates with the rotating shaft 501. The connecting seat 601 is fixed on the rotating disc 6 through the bolts 602, and the pawl 603 is fixed on the connecting seat 601. Therefore, the rotation of the rotating disc 6 will drive the pawl 603 to rotate together. The design of the pawl 603 enables it to be docked with the handle of the gate valve 201, and the opening and closing operation of the gate valve 201 is realized by rotating the pawl 603.

[0035] At the same time when the motor 504 works, the ventilation bin 507 provides an air flow passage for the inside of the chassis 5. The flow guide inclined plate 502 is arranged inside the ventilation bin 507 to guide the air flow direction, so that the air can flow evenly and effectively through the inside of the chassis 504. The filter screen plate 503 is arranged on the inner side of the chassis 5 to prevent dust and other impurities from entering the inside of the chassis 504, thereby ensuring the cleanliness and normal operation of the internal components.

[0036] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Similarly, the terms "one" and "the" do not exclude the presence of more than one item, unless the context clearly indicates otherwise. Further, the terminology "an" and "one" are used in the detailed description and claims only to mean one or more, at least one, or "at least one." Finally, the words "comprise," "comprises," and "comprising" and the like, are to be construed in their broadest, intended, and open ended form to encompass events that would otherwise prevent a process, method, article, or apparatus from being encompassed by the specification.

Claims

1. An auxiliary opening and closing device for a gate valve of a subterranean well, comprising a ground surface (1) and a subterranean well (2) formed under the ground surface (1), characterized in that: The bottom of the underground well (2) is provided with a gate valve (201), the ground (1) is provided with a trolley (3), and the trolley (3) is provided with an auxiliary mechanism; The auxiliary mechanism comprises a lifting unit and an opening and closing unit; The lifting unit comprises a placing box (4), a connecting plate (401) and an electric push rod (402), the bottom of the placing box (4) is fixedly connected to the bottom plate of the trolley (3), the bottom of the placing box (4) and the bottom plate of the trolley (3) are both provided with through holes, and the electric push rod (402) is fixedly connected to the connecting plate (401), and the output end of the electric push rod (402) penetrates through the through hole and extends downward.

2. The auxiliary opening and closing device for the underground well gate valve according to claim 1, characterized in that: The opening and closing unit comprises a case (5), a rotating shaft (501), a motor (504), a worm (505), a fixed block (506), a worm wheel (508), a rotating disc (6), a connecting seat (601), a bolt (602) and a claw (603), the upper surface of the case (5) is fixedly connected to the output end of the electric push rod (402), the bottom of the worm wheel (508) is connected to the inner bottom surface of the case (5) through a bearing, the rotating shaft (501) is fixedly connected to the middle part of the worm wheel (508), the worm (505) is meshedly connected to the worm wheel (508), the worm (505) is fixedly connected between the two fixed blocks (506), the bottom of the fixed block (506) is fixedly connected to the inner bottom surface of the case (5), the output end of the motor (504) is connected to the worm (505) through a shaft coupling, the bottom of the rotating shaft (501) is fixedly connected to the upper surface of the rotating disc (6), the connecting seat (601) is threadedly connected to the bottom surface of the rotating disc (6) through the bolt (602), and the claw (603) is fixedly connected to the connecting seat (601).

3. The auxiliary opening and closing device for the underground well gate valve according to claim 2, characterized in that: The case (5) is internally provided with a heat dissipation structure, the heat dissipation structure comprises a ventilation bin (507), a flow guide inclined plate (502) and a filter screen (503), the ventilation bin (507) is formed on the two sides of the case (5), the flow guide inclined plate (502) is arranged in the ventilation bin (507), and the filter screen (503) is arranged on the inner side of the case (5).

4. The auxiliary opening and closing device for the underground well gate valve according to claim 3, characterized in that: The gate valve (201) is provided with a connecting pipe at both ends, and the claw (603) is clamped on the gate valve (201).

5. The auxiliary opening and closing device for the underground well gate valve according to claim 1, characterized in that: All metal parts of the underground well gate valve opening and closing unit are subjected to corrosion prevention treatment.

6. The auxiliary opening and closing device for the underground well gate valve according to claim 3, characterized in that: The motor (504) is a stepping motor (504).

7. The auxiliary opening and closing device for the underground well gate valve according to claim 4, characterized in that: A damping pad is arranged between the connecting seat (601) and the rotating disc (6).

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