CN218952384U - Wellhead protection device - Google Patents

Abstract

The scheme discloses a wellhead protection device in the technical field of wellhead reinforcement and protection, which comprises a cover body covered at the top of a wellhead and a protection mechanism positioned in the wellhead, wherein the protection mechanism comprises a worm wheel, a worm meshed with the worm wheel, a bidirectional screw rod penetrating through the center of the worm wheel and fixedly connected with the worm wheel, and a machine body connected to the cover body, the worm is rotationally connected with the machine body, two ends of the bidirectional screw rod are in threaded connection with a transmission block, the transmission block is in sliding connection with the machine body, one side of the transmission block, far away from the worm wheel, is fixedly connected with a semi-cylindrical baffle through a transmission rod, and the inner concave surface of the baffle faces the transmission block; the worm rotates through the cover body, and one end of the worm, which is positioned on the cover body, is connected with a rotary table. The scheme has the advantages of uncomplicated structure, convenient use, simple operation, good protection effect on the wellhead, strong auxiliary performance and function of preventing wellhead collapse.

Description

Wellhead protection device

Technical Field

The utility model belongs to the technical field of wellhead reinforcement protection, and particularly relates to a wellhead protection device.

Background

The innovative background of the technical scheme mainly takes the current situation of dewatering wells and water collecting wells as a basis, and is essentially applicable to any wellhead with similar structures and problems.

The dewatering well is a small well for draining accumulated water, and is provided with an underground tunnel drainage system which can be utilized, so that water is led into the dewatering well at intervals along a water ditch, flows into a water bin through an underground tunnel communicated with the dewatering well, is drained to the ground through a special drainage well by a water pump or directly flows out of the ground through the drainage tunnel, and the water collecting well is a well which is arranged around a building so as to form local water concentration, is convenient to drain, and achieves the aim of no-water construction in a foundation pit.

At present, when the construction of a dewatering wellhead and a water collecting well is finished, before the construction is finished, the dewatering wellhead and the water collecting well cannot be subjected to wellhead treatment by using concrete, so that when the water is rained, the wellhead is collapsed, the normal construction at the later stage is influenced, the labor intensity of workers is increased, the labor is required to be consumed manually in the later stage when the auxiliary device is not used for treatment, secondly, the soil and stone blocks on a construction site are easily flushed and driven into the well by raining, the workers are required to be treated at the later stage, and the trouble is very much caused, therefore, the auxiliary device for the construction of the dewatering wellhead and the water collecting well is required to help the workers to carry out auxiliary treatment on the well which is built so as to prevent the wellhead from collapsing and isolate larger particles in the mud-rock flow formed by rainwater flow, and prevent the rainwater from being brought into the well.

Disclosure of Invention

The utility model aims to provide an inlet protection mechanism so as to achieve the purpose of reinforcing a wellhead.

The wellhead protection device comprises a cover body and a protection mechanism, wherein the cover body is covered on the top of a wellhead, the protection mechanism is positioned in the wellhead, the protection mechanism comprises a worm wheel, a worm meshed with the worm wheel, a bidirectional screw rod penetrating through the center of the worm wheel and fixedly connected with the worm wheel, and a machine body connected to the cover body, the worm is rotationally connected with the machine body, two ends of the bidirectional screw rod are in threaded connection with a transmission block, the transmission block is in sliding connection with the machine body, one side, far away from the worm wheel, of the transmission block is fixedly connected with a semi-cylindrical baffle through a transmission rod, and the inner concave surface of the baffle faces the transmission block; the worm rotates through the cover body, and one end of the worm, which is positioned on the cover body, is connected with a rotary table.

The working principle of the scheme is as follows: through carousel rotation worm, worm drives the worm wheel and rotates, along with the rotation of worm wheel, two-way screw rod takes place to rotate, drive block and organism sliding connection, so two-way screw rod rotates the drive block that can make two-way screw rod both ends threaded connection and takes place rectilinear movement, and two drive blocks are moved towards the direction of keeping away from the worm wheel, the baffle that this in-process is connected with the drive block moves to the direction that is close to the wall of a well, until the baffle supports to hold at the wall of a well, closely laminate with the wall of a well, thereby reach and carry out spacing fixedly to the earth that is close to the wall of a well of well, then reach the scouring of preventing the rainwater and cause the wellhead condition of collapsing to take place.

The beneficial technical effects of this scheme are: the scheme has the advantages of uncomplicated structure, convenient use, simple operation, good protection effect on the wellhead, strong auxiliary performance and function of preventing wellhead collapse.

Further, an air bag is arranged on the outer wall of the baffle. When the baffle outwards moves, the air bag locally deforms and is tightly attached to the edge of the wellhead, so that the effect of reinforcing the limit fixation of soil on the edge of the wellhead is achieved.

Further, be connected with the dead lever on the carousel, the top of worm is connected with the connecting block, and connecting block and connecting rod are with detachable mode joint. The turntable can be removed when not applicable.

Further, the wellhead protection device also comprises an isolation mechanism, wherein the isolation mechanism comprises a flow guide pipe penetrating through the machine body, a drain pan is arranged on the cover body, and a plurality of drain holes penetrating through the cover body are uniformly distributed on the drain pan; the drain pan is located directly over the draft tube. Ponding on the lid flows down from the leak opening of drain pan, gets into the honeycomb duct and arranges to the pit, and honeycomb duct and drain pan are all kept away from the wall of a well to better avoid ponding to cause the washing to the wall of a well.

Further, be connected with horizontal baffle in the honeycomb duct, the equipartition has the wash port on the baffle, and the below of baffle is connected with the flow distribution plate.

Further, the part of honeycomb duct inner space and being located the baffle top is big-end-up's funnel form, the middle part sliding connection of baffle has the connecting rod, the lower extreme and the flow distribution plate fixed connection of connecting rod, and the upper end of connecting rod is connected with the kicking block.

Further, filter cotton is connected to the bottom of the floating block.

Drawings

FIG. 1 shows a schematic overall structure provided in accordance with an embodiment of the present utility model;

FIG. 2 illustrates an exploded view of an overall structure provided in accordance with an embodiment of the present utility model;

FIG. 3 shows a schematic view of a structure of a fixing rod according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional view of a protection mechanism according to an embodiment of the present utility model;

fig. 5 is a schematic cross-sectional view of an isolation mechanism according to an embodiment of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the device comprises a cover body 1, a protection mechanism 2, a machine body 201, a bidirectional screw 202, a worm wheel 203, a transmission block 204, a transmission rod 205, a baffle 206, an air bag 207, a worm 208, a connecting block 209, an isolation mechanism 3, a flow guide pipe 301, a drain hole 302, a floating block 303, filter cotton 304, a connecting rod 305, a splitter plate 306, a baffle 307, a drain plate 4, an adjusting hole 5, a fixed rod 6, a rotary table 7 and a slide rod 8.

Referring to fig. 1-5, the utility model provides a wellhead protection device, which comprises a cover 1 covered on the top of a wellhead and a protection mechanism 2 positioned in the wellhead, wherein the protection mechanism 2 comprises a worm wheel 203, a worm 208 meshed with the worm wheel 203, a bidirectional screw 202 penetrating through the center of the worm wheel 203 and fixedly connected with the worm wheel 203, and a machine body 201 connected to the cover 1, the worm 208 is rotationally connected with the machine body 201, two ends of the bidirectional screw 202 are in threaded connection with a transmission block 204, the transmission block 204 is in sliding connection with the machine body 201 through a sliding rod 8, so that an adjusting hole 5 for the transmission block 204 to move is also arranged on the machine body 201, one side of the transmission block 204 far away from the worm wheel 203 is fixedly connected with a semi-cylindrical baffle 206 through a transmission rod 205, the number of the transmission rods 205 is four, and two transmission rods 205 are arranged on one transmission block 204; the inner concave surface of the baffle 206 faces the transmission block 204, and an air bag 207 is arranged on the outer wall of the baffle 206.

The worm 208 rotates and passes lid 1, and worm 208's top is connected with connecting block 209, and hexagonal groove has been seted up at connecting block 209's top, joint has the dead lever 6 rather than the adaptation in the hexagonal groove, and the top of dead lever 6 is connected with carousel 7.

Rotating carousel 7 drives dead lever 6 rotation to drive connecting block 209 and make worm 208 follow the rotation, drive worm wheel 203 then and rotate, make bi-directional screw 202 follow the rotation, under the spacing effect of screw thread and organism 201 to transmission piece 204, make two transmission pieces 204 outwards remove, drive transmission pole 205 and remove, make baffle 206 move in the direction of keeping away from organism 201, thereby make baffle 206 top at the wellhead border, gasbag 207 local mode deformation, closely laminate with the wellhead border, thereby reach and carry out spacing fixedly to the earth on wellhead border, reach the scouring that prevents the rainwater and cause wellhead condition of collapsing to take place then.

The protection device further comprises an isolation mechanism 3, the isolation mechanism 3 comprises a flow guide pipe 301 penetrating through the machine body 201, a drain pan 4 is arranged on the cover body 1, and a plurality of drain holes penetrating through the cover body 1 are uniformly distributed on the drain pan 4; the drain pan 4 is located directly above the flow guide pipe 301, and the upper surface of the cover body 1 is provided with a plurality of flow guide grooves with end parts facing the drain pan 4. The drain pan 4 can keep apart the great granule that is carried in the rainwater, avoids causing the jam to the well, influences subsequent open-hole operation, avoids carrying out unnecessary work.

The flow guide pipe 301 is connected with a horizontal partition plate 307, drain holes 302 are uniformly distributed on the partition plate 307, and a flow dividing plate 306 is connected below the partition plate 307. The part of the inner space of the guide pipe 301, which is positioned above the partition plate 307, is funnel-shaped with big top and small bottom, the middle part of the partition plate 307 is connected with a connecting rod 305 in a sliding manner, the lower end of the connecting rod 305 is fixedly connected with a splitter plate 306, the upper end of the connecting rod 305 is connected with a floating block 303, and the bottom of the floating block 303 is connected with filter cotton 304. The inside of the floating block 303 is a vacuum structure, and the filter cotton 304 is made of rubber material.

Rainwater passes through drain pan 4 and reaches in isolation mechanism 3, then reaches the inside wash port 302 top of honeycomb duct 301, permeates to wash port 302 through filter cotton 304 and drips on the flow distribution plate 306, and when the rainwater volume is big, the inside ponding of honeycomb duct 301 can make floating block 303 float, drives the flow distribution plate 306 and upwards moves to reach under the effect of blockking that receives flow distribution plate 306 to very urgent rainwater, realize the reposition of redundant personnel, prevent to cause the washing away to the inner wall of well, avoid influencing the effect of follow-up construction then.

Working principle: during the use, when the construction site runs into rainy, in time install equipment on the well head, make lid 1 on the well head, make protection machanism 2 reach in the well head, then with carousel 7, go into the inside transmission connection that realizes carousel 7 and connecting block 209 of connecting block 209 through dead lever 6 card, rotate carousel 7 and drive dead lever 6 rotation, thereby drive connecting block 209 and make worm 208 follow-up rotation, then drive worm wheel 203 and rotate, make bi-directional screw 202 follow-up rotation, under the spacing effect of screw thread and organism 201 to driving block 204, make two driving blocks 204 outwards move, drive driving lever 205 and remove, make baffle 206 move towards the direction of keeping away from organism 201, thereby make baffle 206 top at the well head border, and the local mode deformation of gasbag 207 closely laminates with the well head border, thereby reach and carry out spacing fixedly to the earth on well head border, then reach the prevention of rain wash out, stop well head condition emergence, it is comparatively convenient to use, and easy operation, the protection effect is good, the auxiliary performance is strong, the rainwater passes through drain pan 4 and reaches in isolation mechanism 3, then reach inside ponding hole 302 top, under the spacing drainage hole 304 infiltration of water guide pipe 302, prevent that the influence of diversion flow guide pipe 306 from moving down to the diversion plate 306 when the diversion plate is carried out, thereby prevent that the diversion flow diversion plate 306 from moving down, and the realization is carried out in the inside the diversion plate is influenced by the diversion flow diversion plate 306, the realization is down in the diversion flow diversion plate is washed down by the diversion flow down, thereby, and the realization of the diversion flow is down to the inside down to the diversion plate is washed down by the side down.

Claims (8)

1. A wellhead protection device, characterized in that: the device comprises a cover body covered on the top of a wellhead and a protection mechanism positioned in the wellhead, wherein the protection mechanism comprises a worm wheel, a worm meshed with the worm wheel, a bidirectional screw rod penetrating the center of the worm wheel and fixedly connected with the worm wheel, and a machine body connected to the cover body, the worm is rotationally connected with the machine body, two ends of the bidirectional screw rod are in threaded connection with a transmission block, the transmission block is in sliding connection with the machine body, one side, far away from the worm wheel, of the transmission block is fixedly connected with a semi-cylindrical baffle through a transmission rod, and the inner concave surface of the baffle faces the transmission block; the worm rotates through the cover body, and one end of the worm, which is positioned on the cover body, is connected with a rotary table.

2. A wellhead guard according to claim 1, characterised in that: the outer wall of the baffle is provided with an air bag.

3. A wellhead guard according to claim 2, characterised in that: the rotary table is connected with a fixed rod, the top of the worm is connected with a connecting block, and the connecting block is clamped with the connecting rod in a detachable mode.

4. A wellhead guard according to any one of claims 1 to 3, characterised in that: the device also comprises an isolation mechanism, wherein the isolation mechanism comprises a flow guide pipe penetrating through the machine body, a drain pan is arranged on the cover body, and a plurality of drain holes penetrating through the cover body are uniformly distributed on the drain pan; the drain pan is located directly over the draft tube.

5. A wellhead guard according to claim 4, characterised in that: the flow guide pipe is connected with a horizontal partition board, drain holes are uniformly distributed on the partition board, and a flow dividing plate is connected below the partition board.

6. A wellhead guard according to claim 5, characterised in that: the part of honeycomb duct inner space and being located the baffle top is big-end-up's funnel form, the middle part sliding connection of baffle has the connecting rod, the lower extreme and the flow distribution plate fixed connection of connecting rod, and the upper end of connecting rod is connected with the kicking block.

7. A wellhead guard according to claim 6, characterised in that: the bottom of the floating block is connected with filter cotton.

8. A wellhead guard according to any one of claims 5 to 7, characterised in that: the upper surface of the cover body is provided with a plurality of diversion trenches with the end parts facing the drain pan.

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