A revolving protective device for pipe well dewatering

Abstract

The present invention relates to the field of building construction technology, and specifically to a rotatable protective device for pipe well dewatering, comprising a protective frame, which is placed on a foundation, a sandless filter pipe is inserted on the surface of the foundation, a dewatering pipe is inserted inside the sandless filter pipe, the protective frame comprises four groups of pads, a casing is fixed on the top surface of the pad, an extended square tube is movably inserted on the top of the casing, and a cross bar is provided between two adjacent groups of casings; the beneficial effects are as follows: the rotatable protective device for pipe well dewatering proposed by the present invention adopts a protective frame to protect the sandless filter pipe, and the protective frame is telescopically adjusted through the casing and the extended square tube to meet the protection of the sandless filter pipe extending out of the top surface of the foundation at different heights, and after the length of the casing and the extended square tube is adjusted, a positioning plug-in is squeezed by a pushing assembly to achieve rapid limiting, and a covering assembly is hinged on the surface of the cover plate to seal and protect the pipe mouth of the sandless filter pipe, and the protective frame is economical, environmentally friendly, and can be rotatably reused.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a rotatable protective device for pipe well dewatering. Background Art

[0002] Tube well dewatering, the tube well point is composed of a water filter well pipe, a water suction pipe and a pumping machine; the tube well point equipment is simpler, the drainage volume is large, the dewatering is deeper, and it has a greater dewatering effect than the lighter well points. It can replace the functions of multiple groups of light well points and is easy to maintain.

[0003] In the existing technology, with the rapid development of the construction industry, there are more and more high-rise and super-high-rise buildings, and deep foundation pit dewatering is becoming more and more common. Pipe well dewatering is widely used in the earth excavation stage in water-rich areas. Since the upper diameter of the pipe well dewatering is large, the commonly used protection method is to cover the wellhead with a template and temporarily block it with wooden planks.

[0004] However, there are great safety hazards in covering the wellhead with formwork and temporarily shielding it with wooden planks. Improper protective measures during construction can easily cause damage and landfill of the precipitation well, and there are safety hazards during nighttime construction. Summary of the invention

[0005] The object of the present invention is to provide a rotatable protective device for dewatering a pipe well to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotatable protective device for pipe well dewatering, comprising a protective frame, which is placed on a foundation, a sandless filter pipe is inserted on the surface of the foundation, and a dewatering pipe is inserted inside the sandless filter pipe, the protective frame comprises four groups of pads, a casing is fixed on the top surface of the pad, an extended square tube is movably inserted on the top of the casing, a cross bar is provided between two adjacent groups of casings, a telescopic guard bar is provided on the surface of the cross bar, a positioning plug-in is provided between the casing and the extended square tube, which limits the extended square tube after extraction, a pushing assembly is movably inserted on the top of the extended square tube, and the positioning plug-in is limited after the pushing assembly descends, a cover plate is fixed on the top surface of the extended square tube, and a covering assembly is hinged on the surface of the cover plate.

[0007] Preferably, two cross bars are fixed on the surface of the pad, the two cross bars are parallel, the telescopic guard bar is fixed between the two cross bars, and a hidden stopper is provided on the surface of the telescopic guard bar.

[0008] Preferably, the telescopic guardrail includes a guardrail rod, a guardrail sleeve, a guide groove, a slider and a partition plate. The guardrail rod is fixed on the top surface of a cross bar, the guardrail sleeve is fixed on the bottom surface of another cross bar, the guardrail sleeve is sleeved on the top of the guardrail rod, and multiple guardrail sleeves are provided. The multiple guardrail sleeves are arranged along the long side of the cross bar, and the partition plate is fixed between two adjacent guardrail sleeves. The partition plate has an "I"-shaped plate structure, and multiple partition plates arranged up and down are provided between the two guardrail sleeves.

[0009] Preferably, the guide groove is opened on the surface of the guardrail sleeve, the height of the guide groove is smaller than the height of the guardrail sleeve, the two parallel plate bodies of the partition plate are symmetrically distributed about the guide groove, the slider is slidably connected in the guide groove, and the slider is fixed on the surface of the guardrail rod.

[0010] Preferably, the hidden baffle comprises an installation groove, a limiting shaft, a through hole, a baffle, a finger groove and a rubber clamp. The installation groove is provided on the surface of the guardrail rod. A plurality of installation grooves are provided, and the plurality of installation grooves are arranged up and down along the guardrail rod. The limiting shaft is a "T"-shaped column. The limiting shaft passes through the through hole and is fixed on the surface of the installation groove. The through hole is provided on the surface of the baffle. A finger groove is provided at one end of the baffle. A rubber clamp is fixed to the other end of the baffle. The rubber clamp is clamped between the baffle and the installation groove.

[0011] Preferably, the positioning plug-in includes a positioning hole, a positioning plug-in block, a through-opening, a connecting piece, a limiting rod, a spring and a sloped surface. The positioning hole is opened on the surface of the sleeve. A plurality of positioning holes are provided. The plurality of positioning holes are arranged and distributed along the long side of the sleeve. The positioning plug-in block is movably inserted in the positioning hole. The positioning plug-in block passes through the through-opening. The through-opening is opened on the surface of the extended square tube. A sloped surface is provided on the top surface of one end of the positioning plug-in block.

[0012] Preferably, a connecting piece is fixed to the bottom surface of one end of the positioning block, a limiting rod is movably inserted into the surface of the connecting piece, the limiting rod is fixed on the inner wall of the extended square tube, a spring is sleeved on the rod body of the limiting rod, the spring is fixed between the connecting piece and the inner wall of the extended square tube, and when the other end of the positioning block is inserted into the positioning hole, the spring is squeezed and deformed by the connecting piece.

[0013] Preferably, the pushing assembly includes a push rod, a sealing ring, a traction plate, an elastic hanging plate, a clamping strip, a clamping groove and a pull ring. The push rod is movably inserted in the extended square tube. When the push rod moves downward, the push rod slides along the inclined surface to squeeze the positioning plug. The sealing ring is sleeved on the outside of the push rod, and the sealing ring is fixed at the notch of the extended square tube. Push rods are fixed at both ends of the bottom surface of the traction plate. The elastic hanging plate is fixed to the surface of the traction plate. A clamping strip is fixed on the surface of the elastic hanging plate. The clamping strip is a right-angled trapezoidal strip. When the traction plate is overlapped on the top surface of the extended square tube, the clamping strip is inserted into the clamping groove. The clamping groove is a square groove. The clamping groove is provided on the surface of the cross bar. A pull ring is fixed on the surface of the elastic hanging plate. The pull ring and the clamping strip are symmetrically distributed about the elastic hanging plate. Two groups of traction plates are provided, and the two groups of traction plates are symmetrically distributed about the sand-free filter tube.

[0014] Preferably, the covering assembly includes a support block, a side groove, a metal mesh plate, a sealing cover plate, a pipe threading groove, two rubber clamping blocks and a reserved groove, the side groove is arranged on the top surface of the cover plate, the bottom surface of the side groove is fixed with a support block, one side of the support block is fixed to the surface of the extended square tube, the reserved groove is arranged on the surface of the cover plate, the side groove is arranged on the bottom surface of the reserved groove, the side groove is an arc-shaped groove, the metal mesh plate and the sealing cover plate are both semicircular plate-shaped structures, the metal mesh plate is located below the sealing cover plate, and the metal mesh plate and the sealing cover plate are both hinged on the surface of the side groove.

[0015] Preferably, the surfaces of the metal mesh plate and the sealing cover plate are provided with a pipe passing groove, which is an arc-shaped groove, and the sandless filter pipe passes through the pipe passing groove. The side walls of the metal mesh plate and the sealing cover plate are fixed with two rubber clamps. When the metal mesh plate and the sealing cover plate are stacked and overlapped on the top of the sandless filter pipe, the two rubber clamps are clamped between the metal mesh plate and the side groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The pipe well dewatering rotatable protective device proposed in the present invention adopts a protective frame to protect the sand-free filter pipe, and the protective frame is telescopically adjusted through a casing and an extended square cylinder to meet the protection of the sand-free filter pipes extending out of the top surface of the foundation at different heights, and after the length of the casing and the extended square cylinder is adjusted, a positioning plug-in is squeezed by a pushing assembly to achieve rapid limiting, and a covering assembly is hinged on the surface of the cover plate to seal and protect the pipe mouth of the sand-free filter pipe, and the protective frame is economical, environmentally friendly, and can be rotatably reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of a half-section structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the protective frame structure of the present invention;

[0021] Figure 4 This is a schematic diagram of a half-section structure of the protection frame of the present invention;

[0022] Figure 5 It is a schematic diagram of the connection structure of the guardrail sleeve and the partition plate of the present invention;

[0023] Figure 6 It is a schematic diagram of the guardrail structure of the present invention;

[0024] Figure 7 It is a schematic diagram of a partially cutaway connection structure of a sleeve and an extended square tube according to the present invention;

[0025] Figure 8 It is a schematic diagram of the connection structure between the push rod and the traction plate of the present invention;

[0026] Fig. 9 This is a schematic diagram of the positioning plug structure of the present invention;

[0027] Fig.10 It is a schematic diagram of the sealing ring structure of the present invention;

[0028] Fig.11 It is a schematic diagram of the baffle structure of the present invention.

[0029] In the figure: pad 1, sleeve 2, extension square tube 3, foundation 4, sandless filter pipe 5, downpipe 6, cross bar 7, guardrail bar 8, guardrail sleeve 9, guide groove 10, slider 11, partition plate 12, installation groove 13, limit shaft 14, perforation 15, baffle 16, finger groove 17, rubber clamp 18, positioning hole 19, positioning plug 20, perforation 21, connecting piece 22, limit rod 23, spring 24, inclined surface 25, push rod 26, sealing ring 27, traction plate 28, elastic hanging plate 29, clamping strip 30, clamping groove 31, pull ring 32, cover plate 33, support block 34, side groove 35, metal mesh plate 36, sealing cover plate 37, pipe penetration groove 38, rubber clamp 2 39, reserved groove 40. DETAILED DESCRIPTION

[0030] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] See also Figures 1 to 4The present invention provides a technical solution: a revolvable protective device for pipe well dewatering, comprising a protective frame, the protective frame is placed on a foundation 4, a sand-free filter pipe 5 is plugged into the surface of the foundation 4, a dewatering pipe 6 is plugged into the interior of the sand-free filter pipe 5, the protective frame comprises four groups of pads 1, a casing 2 is fixed on the top surface of the pad 1, an extended square tube 3 is movably plugged into the top of the casing 2, a cross bar 7 is provided between two adjacent groups of casings 2, a telescopic guard rod is provided on the surface of the cross bar 7, a positioning plug-in is provided between the casing 2 and the extended square tube 3, the extended square tube 3 is limited after extraction, and a top push plug is movably plugged into the top of the extended square tube 3 The top push assembly limits the positioning plug-in after it descends, and a cover plate 33 is fixed to the top surface of the extended square cylinder 3, and a covering assembly is hinged on the surface of the cover plate 33; a protective frame is used to protect the sand-free filter pipe 5, and the protective frame is telescopically adjusted through the sleeve 2 and the extended square cylinder 3 to meet the protection of the sand-free filter pipe 5 extending out of the top surface of the foundation 4 at different heights, and after the length of the sleeve 2 and the extended square cylinder 3 is adjusted, the positioning plug-in is squeezed by the top push assembly to achieve rapid limiting, and a covering assembly is hinged on the surface of the cover plate 33 to seal and protect the pipe mouth of the sand-free filter pipe 5, and the protective frame is economical, environmentally friendly, and can be recycled and reused.

[0033] Embodiment 2

[0034] See attached Figure 5 and Figure 6 as well as Fig.11On the basis of the first embodiment, in order to realize the space protection between the two sleeves 2, two cross bars 7 are fixed on the surface of the pad 1, and the two cross bars 7 are parallel. The telescopic guardrail is fixed between the two cross bars 7, and the surface of the telescopic guardrail is provided with a hidden stopper. The telescopic guardrail includes a guardrail rod 8, a guardrail sleeve 9, a guide groove 10, a slider 11 and a partition plate 12. The guardrail rod 8 is fixed on the top surface of one cross bar 7, the guardrail sleeve 9 is fixed on the bottom surface of the other cross bar 7, and the guardrail sleeve 9 is sleeved on the top of the guardrail rod 8. There are multiple guardrail sleeves 9, and the multiple guardrail sleeves 9 are arranged along the long side of the cross bar 7. The partition plate 12 is fixed between two adjacent guardrail sleeves 9, and the partition plate 12 is an "I"-shaped plate structure. A plurality of partition plates 12 arranged up and down are provided between the two guardrail sleeves 9. The guide groove 10 is opened on the surface of the guardrail sleeve 9. The guide groove 10 is provided on the surface of the guardrail sleeve 9. The height of the guide groove 10 is less than the height of the guardrail sleeve 9, and the two parallel plate bodies of the partition plate 12 are symmetrically distributed about the guide groove 10. The slider 11 is slidably connected in the guide groove 10, and the slider 11 is fixed on the surface of the guardrail rod 8; the hidden blocking member includes an installation groove 13, a limiting shaft 14, a perforation 15, a baffle 16, a finger groove 17 and a rubber clamp 18. The installation groove 13 is opened on the surface of the guardrail rod 8, and there are multiple installation grooves 13. The multiple installation grooves 13 are arranged up and down along the guardrail rod 8. The limiting shaft 14 is a "T"-shaped column. The limiting shaft 14 passes through the perforation 15 and is fixed on the surface of the installation groove 13. The perforation 15 is opened on the surface of the baffle 16. A finger groove 17 is opened at one end of the baffle 16, and a rubber clamp 18 is fixed at the other end of the baffle 16. The rubber clamp 18 is clamped between the baffle 16 and the installation groove 13.

[0035] In the process of the extended square tube 3 sliding along the sleeve 2, the guardrail sleeve 9 slides along the guardrail rod 8, and the slider 11 slides along the guide groove 10. Since the long side length of the guide groove 10 is less than the height of the guardrail sleeve 9, and both ends of the guide groove 10 are at a distance from the end face of the guardrail sleeve 9, the slider 11 will not detach from the guide groove 10, thereby preventing the guardrail sleeve 9 from being withdrawn from the guardrail rod 8. The partition plate 12 blocks between two adjacent guardrail sleeves 9 to play a protective role. The baffle 16 exposed below the guardrail sleeve 9 can be manually adjusted to a horizontal state, that is, a finger is inserted into the finger groove 17, and the baffle 16 is turned ninety degrees around the limit axis 14. At this time, the baffle 16 is placed horizontally to achieve protection between the two adjacent guardrail rods 8, and the rubber clamp 18 is clamped between the baffle 16 and the mounting groove 13 to prevent the baffle 16 from swinging at will. The baffle 16 on the inner side of the guardrail sleeve 9 is placed vertically in the mounting groove 13.

[0036] Embodiment 3

[0037] See attached Figures 7 to 9On the basis of the second embodiment, in order to realize the limit fixation of the extended square tube 3 after sliding along the sleeve 2, the positioning plug includes a positioning hole 19, a positioning plug 20, a through-hole 21, a connecting piece 22, a limiting rod 23, a spring 24 and an inclined surface 25. The positioning hole 19 is opened on the surface of the sleeve 2, and a plurality of positioning holes 19 are provided. The plurality of positioning holes 19 are arranged and distributed along the long side of the sleeve 2. The positioning plug 20 is movably plugged into the positioning hole 19, and the positioning plug 20 passes through the through-hole 21. The through-hole 21 is inserted into the positioning hole 19. The opening 21 is opened on the surface of the extended square tube 3, the top surface of one end of the positioning plug 20 is provided with an inclined surface 25, the bottom surface of one end of the positioning plug 20 is fixed with a connecting piece 22, the surface of the connecting piece 22 is movably plugged with a limiting rod 23, the limiting rod 23 is fixed on the inner wall of the extended square tube 3, and a spring 24 is sleeved on the rod body of the limiting rod 23, and the spring 24 is fixed between the connecting piece 22 and the inner wall of the extended square tube 3. When the other end of the positioning plug 20 is inserted into the positioning hole 19, the spring 24 is connected to the connecting piece 2 2 extrusion deformation; the push assembly includes a push rod 26, a sealing ring 27, a traction plate 28, an elastic hanging plate 29, a clamping strip 30, a clamping groove 31 and a pull ring 32. The push rod 26 is movably inserted in the extension square tube 3. When the push rod 26 moves downward, the push rod 26 squeezes the positioning plug 20 along the inclined surface 25 to slide. The sealing ring 27 is sleeved on the outside of the push rod 26. The sealing ring 27 is fixed at the notch of the extension square tube 3. The push rod 26 is fixed at both ends of the bottom surface of the traction plate 28. The elastic hanging plate 29 is fixed. A clamping strip 30 is fixed on the surface of the traction plate 28 and the surface of the elastic hanging plate 29. The clamping strip 30 is a right-angled trapezoidal strip. When the traction plate 28 is overlapped on the top surface of the extended square tube 3, the clamping strip 30 is inserted into the clamping groove 31. The clamping groove 31 is a square groove. The clamping groove 31 is opened on the surface of the cross bar 7. A pull ring 32 is fixed on the surface of the elastic hanging plate 29. The pull ring 32 and the clamping strip 30 are symmetrically distributed about the elastic hanging plate 29. Two groups of traction plates 28 are provided, and the two groups of traction plates 28 are symmetrically distributed about the sand-free filter tube 5.

[0038] The elastic hanging plate 29 is deformed by pinching the pull ring 32, and the elastic hanging plate 29 drives the card strip 30 to be pulled out of the card slot 31. Then the pull ring 32 is pulled up through the elastic hanging plate 29 to drive the traction plate 28 to be lifted. The traction plate 28 pulls the push rods 26 at both ends to slide up along the extension square tube 3, and the push rod 26 is no longer blocked by one end of the positioning plug block 20. At this time, the spring 24 rebounds and pushes the connecting piece 22 to slide and reset along the limit rod 23, and the other end of the positioning plug block 20 is disengaged from the positioning hole 19. In this way, holding a set of cross bars 7 by hand can pull the extension square tube 3 to slide along the sleeve 2 to adjust the extension distance of the extension square tube 3. After the extension distance of the extension square tube 3 is determined, one hand holds the extension square tube 3 to prevent the extension square tube 3 from moving, and the other hand presses the traction plate 28 downward. When the traction plate 28 drives the push rod 26 to move downward, the push rod 26 The positioning block 20 is squeezed along the inclined surface 25 to drive the connecting piece 22 to slide along the limiting rod 23, and the spring 24 is squeezed and deformed by the connecting piece 22 until the other end of the positioning block 20 passes through the through opening 21 and is inserted into the positioning hole 19. At this time, the extended square tube 3 is fixed in the sleeve 2, and the bottom end of the push rod 26 is between one end of the positioning block 20 and the inner wall of the sleeve 2, and in the process of the push rod 26 descending, the inclined surface of the card strip 30 is squeezed by the top surface of the cross bar 7, and the elastic hanging plate 29 is tilted and deformed. As the traction plate 28 descends, until the card strip 30 slides along the cross bar 7 to the card groove 31, the elastic hanging plate 29 rebounds and resets to drive the card strip 30 to insert into the card groove 31. At this time, the traction plate 28 is limited, and the push rod 26 will not be pulled out from the extended square tube 3, ensuring the firm connection between the sleeve 2 and the extended square tube 3.

[0039] Embodiment 4

[0040] On the basis of the third embodiment, in order to achieve the sealing of the top pipe opening of the sand-free filter pipe 5, the covering assembly includes a support block 34, a side groove 35, a metal mesh plate 36, a sealing cover plate 37, a pipe penetration groove 38, a rubber clamp block 2 39 and a reserved groove 40, the side groove 35 is opened on the top surface of the cover plate 33, the bottom surface of the side groove 35 is fixed with a support block 34, one side of the support block 34 is fixed to the surface of the extended square tube 3, the reserved groove 40 is opened on the surface of the cover plate 33, the side groove 35 is opened on the bottom surface of the reserved groove 40, the side groove 35 is an arc-shaped groove, the metal mesh plate 36 and the sealing cover plate 3 7 are both semicircular plate structures, the metal mesh plate 36 is located below the sealing cover plate 37, and the metal mesh plate 36 and the sealing cover plate 37 are both hinged on the surface of the side groove 35, and the surfaces of the metal mesh plate 36 and the sealing cover plate 37 are provided with a pipe penetration groove 38, the pipe penetration groove 38 is an arc-shaped groove, and the sand-free filter pipe 5 passes through the pipe penetration groove 38, and the side walls of the metal mesh plate 36 and the sealing cover plate 37 are fixed with a rubber clamp block 2 39, when the metal mesh plate 36 and the sealing cover plate 37 are stacked and overlapped on the top of the sand-free filter pipe 5, the rubber clamp block 2 39 is clamped between the metal mesh plate 36 and the side groove 35.

[0041] The protection frame is placed on the outside of the sand-free filter tube 5. At this time, the two groups of cover plates 33 are on both sides of the sand-free filter tube 5, the metal mesh plate 36 and the sealing cover plate 37 are stacked on the sand-free filter tube 5, and the rubber clamp block 39 plays a damping role between the metal mesh plate 36, the sealing cover plate 37 and the side groove 35 to prevent the stacked sealing cover plates 37 and the metal mesh plates 36 from bumping and jumping. When it is necessary to observe the pipe mouth of the sand-free filter tube 5, the sealing cover plate 37 is turned over, and the opened sealing cover plate 37 is overlapped on the reserved groove 40, and the pipe mouth of the sand-free filter tube 5 can be observed through the mesh of the metal mesh plate 36.

[0042] In actual use, the height of the extended square cylinder 3 extending out of the sleeve 2 is adjusted according to the height of the sand-free filter tube 5 extending out of the top surface of the foundation 4, so that the distance from the bottom surface of the cover plate 33 to the top surface of the foundation 4 is equal to the height of the sand-free filter tube 5 extending out of the foundation 4. The specific operation is as follows: the pull ring 32 is pinched by hand to pull the elastic hanging plate 29 to deform, and the elastic hanging plate 29 drives the card strip 30 to be pulled out of the card slot 31, and then the pull ring 32 is pulled through the elastic hanging plate 29 to drive the traction plate 28 to be lifted up, and the traction plate 28 pulls the push rods 26 at both ends to slide up along the extended square cylinder 3, and the push rod 26 is no longer blocked at one end of the positioning plug 20. At this time, the spring 24 rebounds and pushes the connecting piece 22 to slide back along the limit rod 23, and the other end of the positioning plug 20 is moved from the positioning The hole 19 is disengaged, so that the extension square tube 3 can be pulled to slide along the sleeve 2 by holding a set of cross bars 7 to adjust the extension distance of the extension square tube 3. After the extension distance of the extension square tube 3 is determined, one hand holds the extension square tube 3 to prevent the extension square tube 3 from moving, and the other hand presses the traction plate 28 downward. When the traction plate 28 drives the push rod 26 to move downward, the push rod 26 squeezes the positioning plug 20 along the inclined surface 25 and drives the connecting piece 22 to slide along the limit rod 23. The spring 24 is squeezed and deformed by the connecting piece 22 until the other end of the positioning plug 20 passes through the through opening 21 and is inserted into the positioning hole 19. At this time, the extension square tube 3 is fixed in the sleeve 2, and the bottom end of the push rod 26 is between one end of the positioning plug 20 and the sleeve 2, and during the descent of the push rod 26, the inclined surface of the card strip 30 is squeezed by the top surface of the cross bar 7, and the elastic hanging plate 29 is tilted and deformed. As the traction plate 28 descends, until the card strip 30 slides along the cross bar 7 to the card slot 31, the elastic hanging plate 29 rebounds and resets to drive the card strip 30 to insert into the card slot 31. At this time, the traction plate 28 is limited, and the push rod 26 will not be withdrawn from the extension square tube 3, ensuring the firm connection between the sleeve 2 and the extension square tube 3; during the sliding of the extension square tube 3 along the sleeve 2, the guardrail sleeve 9 slides along the guardrail rod 8, and the slider 11 slides along the guide groove 10. Since the long side length of the guide groove 10 is less than the height of the guardrail sleeve 9, and the guide groove 1 0, both ends are at a distance from the end surface of the guardrail sleeve 9, so the slider 11 will not be separated from the guide groove 10, thereby preventing the guardrail sleeve 9 from being pulled out of the guardrail rod 8, and the partition plate 12 is blocked between the two adjacent guardrail sleeves 9 to play a protective role. The baffle 16 exposed below the guardrail sleeve 9 can be manually adjusted to a horizontal state, that is, the finger is inserted into the finger groove 17, and the baffle 16 is turned ninety degrees around the limit axis 14. At this time, the baffle 16 is placed horizontally to achieve protection between the two adjacent guardrail rods 8, and the rubber clamp 18 is clamped between the baffle 16 and the installation groove 13 to prevent the baffle 16 from swinging at will. The baffle 16 on the inner side of the guardrail sleeve 9 is placed vertically in the installation groove 13;Place the protection frame on the outside of the sand-free filter tube 5. At this time, the two sets of cover plates 33 are on both sides of the sand-free filter tube 5, and the metal mesh plate 36 and the sealing cover plate 37 are stacked on the sand-free filter tube 5. At this time, the rubber clamp block 2 39 plays a damping role between the metal mesh plate 36, the sealing cover plate 37 and the side groove 35 to prevent the stacked sealing cover plates 37 and metal mesh plates 36 from bumping and jumping. When it is necessary to observe the pipe opening of the sand-free filter tube 5, the sealing cover plate 37 is turned over, and the opened sealing cover plate 37 is overlapped on the reserved groove 40, and the pipe opening of the sand-free filter tube 5 can be observed through the mesh of the metal mesh plate 36. ;

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A revolvable protection device for pipe well dewatering, comprising a protection frame, the protection frame being placed on a foundation (4), a sandless filter pipe (5) being inserted on the surface of the foundation (4), and a dewatering pipe (6) being inserted inside the sandless filter pipe (5), characterized in that: The protective frame comprises four groups of pads (1), a sleeve (2) is fixed on the top surface of the pad (1), an extension square tube (3) is movably inserted on the top of the sleeve (2), a cross bar (7) is provided between two adjacent groups of sleeves (2), a telescopic guard bar is provided on the surface of the cross bar (7), a positioning plug-in is provided between the sleeve (2) and the extension square tube (3) to limit the position of the extension square tube (3) after extraction, a push assembly is movably inserted on the top of the extension square tube (3), and the push assembly limits the position of the positioning plug-in after descending, a cover plate (33) is fixed on the top surface of the extension square tube (3), and a covering assembly is hinged on the surface of the cover plate (33); The positioning plug-in comprises a positioning hole (19), a positioning plug-in block (20), a through-opening (21), a connecting piece (22), a limiting rod (23), a spring (24) and an inclined surface (25). The positioning hole (19) is provided on the surface of the sleeve (2). A plurality of positioning holes (19) are provided. The plurality of positioning holes (19) are arranged and distributed along the long side of the sleeve (2). The positioning plug-in block (20) is movably inserted in the positioning hole (19). The positioning plug-in block (20) passes through the through-opening (21). The through-opening (21) is provided on the surface of the extended square tube (3). The top surface of one end of the positioning plug-in block (20) is provided with an inclined surface (25). The push assembly comprises a push rod (26), a sealing ring (27), a traction plate (28), an elastic hanging plate (29), a clamping strip (30), a clamping groove (31) and a pull ring (32). The push rod (26) is movably inserted in the extended square tube (3). When the push rod (26) moves downward, the push rod (2 6) The positioning plug (20) is squeezed and slid along the inclined surface (25), the sealing ring (27) is sleeved on the outside of the push rod (26), the sealing ring (27) is fixed at the notch of the extended square tube (3), the push rods (26) are fixed at both ends of the bottom surface of the traction plate (28), the elastic hanging plate (29) is fixed on the surface of the traction plate (28), the surface of the elastic hanging plate (29) is fixed with a clamping strip (30), the clamping strip (30) is a right-angled trapezoidal strip, and the traction plate When the (28) is overlapped on the top surface of the extended square tube (3), the clamping strip (30) is inserted into the clamping groove (31), the clamping groove (31) is a square groove, and the clamping groove (31) is opened on the surface of the cross bar (7). A pull ring (32) is fixed on the surface of the elastic hanging plate (29), and the pull ring (32) and the clamping strip (30) are symmetrically distributed about the elastic hanging plate (29). The traction plate (28) is provided with two groups, and the two groups of traction plates (28) are symmetrically distributed about the sand-free filter tube (5).

2. A revolving protective device for pipe well dewatering according to claim 1, characterized in that: Two cross bars (7) are provided above the pad (1), the two cross bars (7) are parallel, one cross bar (7) is fixed between two adjacent sleeves (2), the other cross bar (7) is fixed between two adjacent extended square tubes (3), a telescopic guard rod is fixed between the two cross bars (7), and a hidden stopper is provided on the surface of the telescopic guard rod.

3. A revolving protective device for dewatering a pipe well according to claim 2, characterized in that: The telescopic guardrail comprises a guardrail rod (8), a guardrail sleeve (9), a guide groove (10), a slider (11) and a partition plate (12); the guardrail rod (8) is fixed to the top surface of a crossbar (7); the guardrail sleeve (9) is fixed to the bottom surface of another crossbar (7); the guardrail sleeve (9) is sleeved above the guardrail rod (8); a plurality of guardrail sleeves (9) are provided; the plurality of guardrail sleeves (9) are arranged along the long side of the crossbar (7); the partition plate (12) is fixed between two adjacent guardrail sleeves (9); the partition plate (12) is in an "I"-shaped plate structure; a plurality of partition plates (12) arranged up and down are provided between the two guardrail sleeves (9).

4. A revolving protective device for dewatering a pipe well according to claim 3, characterized in that: The guide groove (10) is formed on the surface of the guardrail sleeve (9), the height of the guide groove (10) is less than the height of the guardrail sleeve (9), the two parallel plate bodies of the partition plate (12) are symmetrically distributed about the guide groove (10), the slider (11) is slidably connected in the guide groove (10), and the slider (11) is fixed on the surface of the guardrail rod (8).

5. A revolving protective device for pipe well dewatering according to claim 3, characterized in that: The hidden blocking component comprises a mounting groove (13), a limiting shaft (14), a through hole (15), a baffle (16), a finger groove (17) and a rubber clamp (18). The mounting groove (13) is provided on the surface of the guardrail rod (8). A plurality of mounting grooves (13) are provided. The plurality of mounting grooves (13) are arranged vertically along the guardrail rod (8). The limiting shaft (14) is a "T"-shaped column. The limiting shaft (14) passes through the through hole (15) and is fixed on the surface of the mounting groove (13). The through hole (15) is provided on the surface of the baffle (16). A finger groove (17) is provided on one end of the baffle (16). A rubber clamp (18) is fixed on the other end of the baffle (16). The rubber clamp (18) is clamped between the baffle (16) and the mounting groove (13).

6. A revolving protective device for dewatering a pipe well according to claim 1, characterized in that: A connecting piece (22) is fixed to the bottom surface of one end of the positioning plug (20); a limiting rod (23) is movably inserted into the surface of the connecting piece (22); the limiting rod (23) is fixed to the inner wall of the extended square tube (3); a spring (24) is sleeved on the rod body of the limiting rod (23); the spring (24) is fixed between the connecting piece (22) and the inner wall of the extended square tube (3); when the other end of the positioning plug (20) is inserted into the positioning hole (19), the spring (24) is squeezed and deformed by the connecting piece (22).

7. A revolving protective device for dewatering a pipe well according to claim 1, characterized in that: The covering assembly comprises a support block (34), a side groove (35), a metal mesh plate (36), a sealing cover plate (37), a pipe insertion groove (38), a second rubber clamp block (39) and a reserved groove (40); the side groove (35) is arranged on the top surface of the cover plate (33); the support block (34) is fixed to the bottom surface of the side groove (35); one surface of the support block (34) is fixed to the surface of the extended square tube (3); the reserved groove (40) is arranged on the surface of the cover plate (33); the side groove (35) is arranged on the bottom surface of the reserved groove (40); the side groove (35) is an arc-shaped groove; the metal mesh plate (36) and the sealing cover plate (37) are both semicircular plate-shaped structures; the metal mesh plate (36) is located below the sealing cover plate (37); and the metal mesh plate (36) and the sealing cover plate (37) are both hinged to the surface of the side groove (35).

8. A revolving protective device for pipe well dewatering according to claim 7, characterized in that: The surfaces of the metal mesh plate (36) and the sealing cover plate (37) are provided with a pipe-penetrating groove (38), which is an arc-shaped groove. The downcomer (6) passes through the pipe-penetrating groove (38). The side walls of the metal mesh plate (36) and the sealing cover plate (37) are fixed with a second rubber clamp block (39). When the metal mesh plate (36) and the sealing cover plate (37) are stacked and overlapped on the top of the sand-free filter pipe (5), the second rubber clamp block (39) is clamped between the metal mesh plate (36) and the side groove (35).

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