A spliced ​​inspection well

Abstract

The present invention discloses a spliced ​​inspection well, belonging to the technical field of inspection wells, comprising a well seat and an inlet well shaft connected to the well seat; transition well shafts arranged in opposite directions are arranged on both sides of the well seat; the two transition well shafts are connected to the well seat through a moving unit; the moving unit can adjust the distance between the transition well shaft and the well seat; the transition well shaft and the drainage pipe are connected through a connecting unit. The present application can adjust the telescopic distance of the transition well shaft through the setting of the moving unit, can adapt to the situation where two drainage pipes in different sites are not in the same straight line, improve construction efficiency, and at the same time, after adjusting the distance, limit the movement of the transition well shaft, and improve the stability of the entire inspection well.

Description

Technical Field

[0001] The invention belongs to the technical field of inspection wells, and in particular relates to a spliced ​​inspection well. Background Art

[0002] Inspection wells are one-piece well-shaped structures used for regular inspections, cleaning, dredging or going down into the well for operation. Inspection wells are usually set at the intersection of drainage pipes or where the pipe diameter changes. Due to the construction site, the drainage pipes at the two intersections will not be in the same straight line, that is, there will be a certain deviation. Depending on the site, this deviation will also be different. At this time, it is necessary to integrally form inspection wells of different sizes according to different deviations, which affects the construction efficiency. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a spliced ​​inspection well to solve the technical problem in the prior art that corresponding inspection wells need to be integrally formed according to different deviations.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a spliced ​​inspection well, comprising a well seat and an inlet wellbore connected to the well seat; transition wellbores arranged in opposite directions are arranged on both sides of the well seat; the two transition wellbores are connected to the well seat through a moving unit; the moving unit can adjust the distance between the transition wellbore and the well seat; each moving unit comprises a first connecting pipe connected to the wellbore; an annular plate is coaxially connected to one end of the first connecting pipe close to the well seat; one end of the transition wellbore is slidably connected in the first connecting pipe, and a compression spring is connected between the transition wellbore and the annular plate; a coaxially arranged rotating tube is rotatably connected in the annular plate; a spiral plate is spirally arranged on the circumferential side wall of the rotating tube; connecting holes are evenly opened on the spiral plate; a limiting tube is arranged on the inner wall of the transition wellbore; a limiting rod which can be inserted into the connecting hole is slidably arranged in the limiting tube through a first spring; the end of the limiting rod is coaxially arranged on the conical block; as the rotating tube rotates, the connecting rod leaves the connecting hole in turn and enters the next connecting hole; the transition wellbore and the drainage pipe are both connected through the connecting unit.

[0006] Furthermore, it also includes a rotating unit capable of rotating the transition wellbore 90°; the rotating unit is located between one of the transition wellbores and the well seat; the rotating unit includes an arc-shaped plate; both ends of the well seat are rotatably connected to a rotating shaft; both ends of the arc-shaped plate are respectively connected to the rotating shaft through connecting rods; there is a gap between the arc-shaped plate and the well seat; a second connecting pipe is connected to the side of the arc-shaped plate close to the well seat; two positioning tubes with an angle of 90° are provided on the side wall of the wellbore away from the entrance wellbore; one of the positioning tubes is coaxial with the second connecting tube, and the other positioning tube is coaxial with the entrance wellbore; when the arc-shaped plate is rotated to a position corresponding to any positioning tube, the second connecting tube can be connected to the positioning tube through a fixed tube threadedly connected to the outside of the second connecting tube.

[0007] Furthermore, the connection unit comprises a first sleeve sleeved on the other end of the transition shaft and a second sleeve sleeved on the drainage pipe; the inner side wall of the first sleeve is uniformly provided with radially distributed first grooves; the outer side wall of the second sleeve is uniformly provided with second grooves corresponding to the first grooves; the second sleeve is also provided with a plurality of fan-shaped grooves; each fan-shaped groove is connected to the corresponding second groove; two mutually contacting trapezoidal blocks are provided between the side walls of the fan-shaped grooves; the contact surfaces of the two trapezoidal blocks are provided with semicircular grooves; after the two trapezoidal blocks contact , two semicircular grooves are spliced ​​to form a circular groove; the two sides of the trapezoidal block are connected to the side walls of the first groove through the first spring respectively; the two ends of the two trapezoidal blocks are respectively processed with inclined surfaces; after the two trapezoidal blocks are in contact, the adjacent inclined surfaces form an acute angle concave inward; a pushing cylinder is provided in the first groove; an arc block that can slide in the first groove and the second groove is connected to the telescopic shaft of the pushing cylinder; an arc groove is opened in the arc block; an arc bar is slidably connected in the arc groove through the second spring; a spherical block that can engage with the circular groove is provided on the arc bar.

[0008] Furthermore, baffles are provided on the side walls of the fan-shaped grooves; the baffles are used to prevent the arc rod from being stuck in the first spring.

[0009] Furthermore, one end of the inlet shaft away from the well seat is detachably connected to a well cover.

[0010] The beneficial effects of the present invention are:

[0011] 1. The setting of the mobile unit can adjust the telescopic distance of the transition shaft, which can adapt to the situation where the two drainage pipes in different sites are not in the same straight line, thereby improving the construction efficiency. At the same time, after adjusting the distance, the movement of the transition shaft is limited to improve the stability of the entire inspection well.

[0012] 2. The setting of the rotating unit can adjust the position of the right transition shaft, so that the transition shaft at that location is connected with the drainage pipe, thereby connecting two drainage pipes that are not at the same height, and has strong adaptability.

[0013] 3. The connection unit is set so that the spherical block is stuck in the circular groove of the trapezoidal block. When water flows through the connection between the drainage pipe and the transition shaft, vibration is generated. The second spring can reduce the vibration of the arc rod, thereby reducing the vibration of the first sleeve connected to the arc block, thereby reducing the contact friction between the second sleeve and the inner wall of the first sleeve, thereby avoiding the situation where the pipe wall becomes thinner and causes water leakage in the drainage pipe.

[0014] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0016] Figure 1 A three-dimensional diagram of the inspection well of the present invention;

[0017] Figure 2 It is a transverse partial cross-sectional view of the inspection well of the present invention;

[0018] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 A three-dimensional diagram of the rotating tube of the present invention;

[0020] Figure 5 For the present invention Figure 2 A cross-sectional view along the B-B direction;

[0021] Figure 6 For the present invention Figure 5 A partial enlarged view of point C in the middle.

[0022] The markings in the accompanying drawings are as follows: well seat 1, entrance wellbore 2, transition wellbore 3, first connecting pipe 4, circular ring plate 5, rotating pipe 6, spiral plate 7, connecting hole 8, limiting pipe 9, conical block 10, rotating shaft 11, arc plate 12, second connecting pipe 13, positioning pipe 14, fixing pipe 15, baffle 16, first sleeve 17, second sleeve 18, first groove 19, second groove 20, fan-shaped groove 21, trapezoidal block 22, pushing cylinder 23, arc bar 24, drain pipe 25, well cover 26. DETAILED DESCRIPTION

[0023] like Figures 1 to 6 As shown, the present invention provides a spliced ​​inspection well, comprising a well seat 1 and an entrance well shaft 2 vertically connected to the well seat 1 directly above; the entrance well shaft 2 is spliced ​​by a plurality of sections; the well seat 1 is cylindrical; the left and right side walls of the well seat 1 located on the same horizontal plane are provided with transition well shafts 3 in opposite directions; the cross-sectional shape of the transition well shaft 3 is L-shaped; a movable unit is provided between the two transition well shafts 3 and the well seat 1; the movable unit can adjust the distance between the transition well shaft 3 and the well seat 1; Figure 2 , 3As shown, each mobile unit includes a first connecting pipe 4 connected to the wellbore; the end of the first connecting pipe 4 close to the well seat 1 is coaxially connected to a circular plate 5; there is a gap between the circular plate 5 and the side wall of the well seat 1; the end of the transition wellbore 3 close to the well seat 1 is slidably connected to the first connecting pipe 4, and a number of uniformly distributed compression springs are connected between the pipe wall of the transition wellbore 3 and the circular plate 5; the compression springs are uniformly distributed on the circular plate 5; a coaxially arranged rotating pipe 6 is rotatably connected in the circular plate 5, and the rotating pipe 6 is driven by a motor; the end of the rotating pipe 6 close to the well seat 1 is connected to the well seat 1; the end of the rotating pipe 6 away from the well seat 1 is connected to the first connecting pipe 4; the circumferential side wall of the rotating pipe 6 is provided with a spiral plate 7 (such as Figure 4 As shown); the distance between the spiral plate 7 is the same as the distance from the end of the rotating tube 6 away from the well seat 1 to the circular plate 5; the spiral plate 7 is evenly provided with connecting holes 8 along the direction in which it extends; the inner wall of the transition shaft 3 is vertically provided with a vertically downward limiting tube 9; a limiting rod that can be inserted into the connecting hole 8 is slidably arranged in the limiting tube 9 through a first spring (not shown in the figure); the end of the limiting rod is coaxially connected with a conical block 10, the conical block 10 is inserted into the connecting hole 8, and the connection between the conical block 10 and the limiting rod is flush with the upper surface of the connecting hole 8; as the rotating tube 6 rotates, the conical block 10 leaves the connecting hole 8 in turn and enters the next connecting hole 8; the ends of the two transition shafts 3 away from the well seat 1 are connected to the drainage pipe 25 through a connecting unit.

[0024] Principle and effect of the above technical solution:

[0025] Due to the construction site, the drainage pipes 25 at the two intersections will not be in the same straight line, that is, there will be a certain deviation. Depending on the site, this deviation will be different. At this time, if an integrally formed inspection well is used, it is necessary to process inspection wells of different sizes according to different deviations, which affects the construction efficiency. In order to solve this problem, the above-mentioned scheme is provided: in the initial state, the end of the transition shaft 3 close to the well seat 1 is located in the tube of the first connecting pipe 4, and the conical block 10 at the end of the limit rod is inserted into the first connecting hole 8 on the spiral plate 7 at the end away from the well seat 1; when it is necessary to extend the transition shaft 3 to adjust the relative position with the drainage pipe 25, the rotating tube 6 is rotated by the motor, and the spiral plate 7 pushes the transition shaft 3 on the limit rod to extend outward through the connecting hole 8. At the same time, with the continuous rotation of the rotating tube 6, the conical block 10 at the end of the limit rod is detached from the connecting hole 8 away from the well seat 1, and inserted into the next connecting hole 8 close to the well seat 1, so that the transition shaft 3 is extended, and the conical block 10 is inserted into the connecting hole The transition shaft 3 can be limited in the hole 8. When the transition shaft 3 is extended to a predetermined distance, the rotation of the rotating tube 6 is stopped, and the end of the transition shaft 3 away from the well seat 1 is connected to the drainage pipe 25 through the connecting unit. The transition shaft 3 is indirectly pushed outward by the spiral plate 7 on the rotating tube 6. The setting of the conical block 10 can not only realize the limitation of the transition shaft 3 after it is extended, but when the rotating tube 6 rotates in the opposite direction, the conical block 10 disengages from the connecting hole 8 close to the well seat 1. The conical block 10 is inserted into the connecting hole 8 away from the well seat 1 under the action of the compression spring, so as to shorten the extension length of the transition shaft 3. The setting of the moving unit can adjust the telescopic distance of the transition shaft 3, and then make it connected with the drainage pipe 25 through the connecting unit. The length of the transition shaft 3 is adjusted by the moving unit, which can adapt to the situation where the two drainage pipes 25 in different sites are not in the same straight line, thereby improving the construction efficiency. At the same time, after adjusting the distance, the movement of the transition shaft 3 is limited, and the stability of the entire inspection well is improved.

[0026] In this embodiment, Figure 2As shown, it also includes a rotating unit that can rotate the transition shaft 3 by 90°; the rotating unit is between the well seat 1 and the transition shaft 3 on the right; the front and rear ends of the well seat 1 are rotatably connected with a coaxial rotating shaft 11; the rotating unit includes an arc plate 12; the upper and lower ends of the arc plate 12 are respectively connected to the rotating shaft 11 through connecting rods; there is a gap between the arc plate 12 and the well seat 1; the left side of the arc plate 12 is horizontally connected with a second connecting pipe 13; the second connecting pipe 13 is connected to the right side The first rotating pipe 6 is connected through a through hole opened on the arc plate 12; the right end of the rotating pipe 6 on the right is connected to the transition shaft 3; the side wall of the well seat 1 away from the entrance shaft 2 is provided with two The two positioning tubes 14 have an angle of 90°, and both positioning tubes 14 are connected to the well seat 1; the positioning tube 14 on the right side of the well seat 1 is coaxial with the second connecting tube 13, and the positioning tube 14 on the lower side of the well seat 1 is coaxial with the inlet shaft 2. The well seat 1 is detachably provided with side covers (not shown in the figure) corresponding to the two positioning tubes 14, respectively, and the side covers are used to close the unused positioning tubes 14; when the arc plate 12 is rotated to the corresponding position of any one of the above-mentioned two positioning tubes 14, the corresponding side cover is opened, and the second connecting tube 13 can be connected to the positioning tube 14 through a fixed tube 15 threadedly connected to the outside of the second connecting tube 13, and the fixed tube 15 is threadedly connected to the positioning tube 14.

[0027] Principle and effect of the above technical solution:

[0028] Due to the difference in soil, there will be a height difference in the installation ground of the drainage pipe 25, resulting in the two drainage pipes 25 not being installed at the same height. In order to solve this problem, a rotating unit and two positioning pipes 14 distributed on the side wall of the well seat 1 are provided. In the initial state, the second connecting pipe 13 on the arc plate 12 is connected to the positioning pipe 14 on the right. When the two drainage pipes 25 are not installed at the same height, the fixed pipe 15 is rotated to release the second connecting pipe 13 from being connected to the positioning pipe 14 in the horizontal direction, and the side cover at this location blocks the horizontal positioning pipe 14 to prevent groundwater from entering. The motor drives The rotating shaft 11 rotates, causing the arc plate 12 to rotate to the side opposite to the inlet shaft 2, and the second connecting pipe 13 is connected to the positioning pipe 14 at that location through the fixed pipe 15. After adjusting the length of the transition shaft 3 through the moving unit, the transition shaft 3 is connected to the drainage pipe 25 using the connecting unit. The setting of the arc plate 12 can adjust the position of the right-side transition shaft 3, so that the transition shaft 3 at that location is connected to the drainage pipe 25. The setting of the rotating unit can adjust the right-side transition shaft 3 to rotate 90°, so that two drainage pipes 25 that are not at the same height are connected, and it has strong adaptability.

[0029] In this embodiment, Figure 5 , 6As shown, the connection unit includes a first sleeve 17 sleeved on one end of the transition shaft 3 connected to the drainage pipe 25, and a second sleeve 18 sleeved on the drainage pipe 25; the transition shaft 3 is connected to the drainage pipe 25 in the second sleeve 18 through the first sleeve 17; the outer wall of the transition shaft 3 is provided with a fixed cylinder (not shown in the figure) along the length direction of the transition shaft 3; the pipe wall of the second sleeve 18 is connected to the telescopic shaft of the fixed cylinder; the inner wall of the first sleeve 17 has a circular array of uniformly distributed first grooves 19; the opening direction of the first groove 19 is the radial direction of the first sleeve 17; the outer wall of the second sleeve 18 is uniformly provided with second grooves 20 connected with the first grooves 19; a plurality of fan-shaped grooves 21 are also provided in the second sleeve 18; each fan-shaped groove 21 is connected to the corresponding second groove 20; two mutually contacting trapezoidal blocks 22 are provided between the opposite side walls of each fan-shaped groove 21; a semicircular groove is provided in the middle position of the contact surface of the two trapezoidal blocks 22; After the two trapezoidal blocks 22 come into contact, the two semicircular grooves are spliced ​​to form a circular groove; the two sides of the two trapezoidal blocks 22 facing each other are connected to the side walls of the first groove 19 through the first springs; the two ends of the two trapezoidal blocks 22 in the direction perpendicular to the first springs are respectively processed with inclined surfaces; after the two trapezoidal blocks 22 come into contact, the adjacent inclined surfaces form an acute angle concave inward; each first groove 19 is provided with a radially distributed pushing cylinder 23; the telescopic shaft of the pushing cylinder 23 is connected with a cylinder that can be moved between the first groove 19 and the second groove An arc block slides in the groove 20; an arc groove is opened in the arc block in a direction perpendicular to the pushing cylinder 23; an arc bar 24 is slidably connected in the arc groove through a second spring; an arc rod is connected to the arc bar 24 in the direction in which the arc groove is opened, and a spherical block is provided at the end of the arc rod. When the arc block reaches the bottom of the fan-shaped groove 21, the contact surface of the arc rod and the two trapezoidal blocks 22 are located on the same arc line, and the spherical block can be stuck in the circular groove under the action of the second spring, and the arc bar 24 will not slide out of the arc groove.

[0030] Principle and effect of the above technical solution:

[0031] In the initial state, the arc block is located in the first groove 19. After the second sleeve 18 is connected to the drain pipe 25, the transition shaft 3 is adjusted to be coaxial with the drain pipe 25, and the first sleeve 17 is pushed by the fixed cylinder to align the first groove 19 on the first sleeve 17 with the second groove 20 on the second sleeve 18. Then, the arc block is pushed into the second groove 20 and reaches the bottom of the fan-shaped groove 21 by the pushing cylinder 23. The arc block in the arc groove extends out of the arc groove under the action of the second spring and moves along the inclined surface of the trapezoidal block 22, so that the spherical block on the arc rod is stuck in the circular groove; due to the gap between the first sleeve 17 and the second sleeve 18, when the water in the drain pipe 25 passes through the connection between the drain pipe 25 and the transition shaft 3 , vibration will be generated, and the drainage pipe 25 drives the second sleeve 18 to vibrate, thereby contacting and colliding with the inner wall of the first sleeve 17. Under the action of friction, the outer wall of the second sleeve 18 and the inner wall of the first sleeve 17 become thinner, resulting in water leakage in the drainage pipe 25; by setting two mutually contacting trapezoidal blocks 22, the spherical block is inserted into the circular groove of the trapezoidal block 22, and when the water flows through the connection between the drainage pipe 25 and the transition shaft 3, vibration is generated, and the second spring can reduce the vibration of the arc rod, thereby slowing down the vibration of the first sleeve 17 connected to the arc block, thereby reducing the contact friction between the second sleeve 18 and the inner wall of the first sleeve 17, thereby avoiding the situation where the thinning of the pipe wall causes water leakage in the drainage pipe 25.

[0032] In this embodiment, Figure 6 As shown, a baffle 16 is radially provided on the side wall of each fan-shaped groove 21; the baffle 16 is located on the side close to the second groove 20; after the two trapezoidal blocks 22 are in contact, the facing ends of the two baffles 16 are flush with the side of the corresponding trapezoidal block 22 away from the second spring; there is a gap between the facing ends of the two baffles 16; the baffle 16 is used to prevent the arc rod from being stuck in the first spring; the distance between the two baffles 16 is four times the width of the arc rod, so that after the spherical end of the arc rod is stuck in the circular groove, when vibration occurs, when the second spring is performing vibration reduction, the arc rod can move a sufficient distance in the gap between the two baffles 16 to avoid the baffle 16 blocking the follow-up movement of the arc rod during vibration reduction.

[0033] In this embodiment, Figure 1 As shown, one end of the inlet shaft 2 away from the well seat 1 is detachably connected to a well cover 26 .

[0034] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A spliced ​​inspection well, characterized by: It includes a well seat and an inlet wellbore connected to the well seat; transition wellbores arranged in opposite directions are provided on both sides of the well seat; the two transition wellbores are connected to the well seat through a moving unit; the moving unit can adjust the distance between the transition wellbore and the well seat; each moving unit includes a first connecting pipe connected to the transition wellbore; the end of the first connecting pipe close to the well seat is coaxially connected to a circular ring plate; one end of the transition wellbore is slidably connected in the first connecting pipe, and a compression spring is connected between the circular ring plate; a coaxially arranged rotating tube is rotatably connected in the circular ring plate; a spiral plate arranged in a spiral manner is provided on the circumferential side wall of the rotating tube; connecting holes are evenly opened on the spiral plate; a limiting tube is provided on the inner wall of the transition wellbore; a limiting rod which can be inserted into the connecting hole is slidably provided in the limiting tube through a first spring; the end of the limiting rod is coaxially arranged on the conical block; as the rotating tube rotates, the connecting rod leaves the connecting hole in turn and enters the next connecting hole; the transition wellbore and the drainage pipe are both connected through the connecting unit.

2. A spliced ​​inspection well according to claim 1, characterized in that: It also includes a rotating unit capable of rotating the transition wellbore 90°; the rotating unit is located between one of the transition wellbores and the well seat; the rotating unit includes an arc-shaped plate; both ends of the well seat are rotatably connected to a rotating shaft; both ends of the arc-shaped plate are respectively connected to the rotating shaft through connecting rods; a gap is provided between the arc-shaped plate and the well seat; a second connecting pipe is connected to the side of the arc-shaped plate close to the well seat; two positioning tubes with an angle of 90° are provided on the side wall of the well seat away from the entrance wellbore; one of the positioning tubes is coaxial with the second connecting tube, and the other positioning tube is coaxial with the entrance wellbore; when the arc-shaped plate is rotated to a position corresponding to any positioning tube, the second connecting tube can be connected to the positioning tube through a fixed tube threadedly connected to the outside of the second connecting tube.

3. A spliced ​​inspection well according to claim 2, characterized in that: The connecting unit comprises a first sleeve sleeved on the other end of the transition shaft and a second sleeve sleeved on the drainage pipe; the inner side wall of the first sleeve is uniformly provided with radially distributed first grooves; the outer side wall of the second sleeve is uniformly provided with second grooves corresponding to the first grooves; a plurality of fan-shaped grooves are also provided in the second sleeve; each fan-shaped groove is connected with the corresponding second groove; two mutually contacting trapezoidal blocks are provided between the side walls of the fan-shaped grooves; the contact surfaces of the two trapezoidal blocks are provided with semicircular grooves; after the two trapezoidal blocks are in contact, the two semicircular grooves are spliced ​​to form a circular groove; the two sides of the trapezoidal blocks are respectively connected to the side walls of the first groove through the first spring; the two ends of the two trapezoidal blocks are respectively processed with inclined surfaces; after the two trapezoidal blocks are in contact, the adjacent inclined surfaces form an acute angle concave inward; a pushing cylinder is provided in the first groove; an arc block capable of sliding in the first groove and the second groove is connected to the telescopic shaft of the pushing cylinder; an arc groove is provided in the arc block; an arc bar is slidably connected in the arc groove through the second spring; a spherical block capable of engaging with the circular groove is provided on the arc bar.

4. A spliced ​​inspection well according to claim 3, characterized in that: The side walls of the fan-shaped groove are each provided with a baffle plate; the baffle plate is used to prevent the arc-shaped rod from being stuck in the first spring.

5. The spliced ​​inspection well according to claim 4 is characterized in that: The end of the inlet shaft away from the well seat is detachably connected with a well cover.

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