Inner supporting device for thin-wall prefabricated inspection well shaft

Abstract

The utility model discloses an inner supporting device for a thin-wall prefabricated inspection well shaft, which relates to the technical field of pipeline construction and comprises an adjusting shaft, a fixing plate and a supporting component arranged on the adjusting shaft, the fixing plate is arranged on a pipe orifice, and the adjusting shaft is rotatably arranged on the fixing plate, penetrates through the fixing plate and is positioned in the center of the inspection well shaft. The supporting assembly comprises supporting rods arranged on the adjusting shaft, push-pull rods, a movable sleeve and a supporting plate, the supporting rods are evenly distributed on the adjusting shaft, a fixing sleeve is arranged on the fixing plate, the adjusting shaft penetrates through the fixing sleeve and is rotationally connected with the fixing sleeve, the end of each supporting rod is hinged to the fixing sleeve, and the push-pull rods correspond to the supporting rods one to one and are hinged to the supporting plate. The supporting plate is used for abutting against the shaft wall, and the adjusting shaft is sleeved with the movable sleeve in a threaded mode. The adjusting shaft is rotated, the moving sleeve moves upwards, the push-pull rod pushes the supporting rod upwards, the supporting rod rotates upwards and abuts against the side wall of the inspection well shaft, the inspection well shaft is supported, and damage to the inspection well shaft due to the fact that backfill soil impacts the inspection well shaft during backfill can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of rainwater and sewage pipe network construction, in particular to an internal support device for a thin-wall prefabricated inspection well shaft. Background Art

[0002] Since the municipal water supply and drainage inspection well shaft is installed underground, it needs to be backfilled after installation. During the backfilling process, the outer wall of the water supply and drainage inspection well shaft is squeezed or compressed, which will cause deformation of the inspection well shaft wall. At present, wooden planks are often used to make cross internal supports or alternately arrange them horizontally and vertically when backfilling the inspection well shaft. They are difficult to disassemble and assemble, and the recycling rate of wooden planks is low. Improper operation during disassembly can easily damage the inspection well shaft. During the backfilling process, the supports are easy to slip due to vibration, rolling, etc., and fail to play a supporting role, causing the inspection well shaft to deform, resulting in problems such as joint leakage and reduced inspection well shaft flow. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide an internal support device for a thin-walled prefabricated inspection well shaft, to solve the problems of difficult disassembly and assembly of the internal support of the inspection well shaft, poor stability, low recycling rate, etc., to ensure the compaction degree of the backfill of the inspection well shaft and the complete use function of the inspection well shaft.

[0004] The internal support device for the thin-wall prefabricated inspection well provided by the utility model adopts the following technical solutions:

[0005] An internal support device for a thin-walled prefabricated inspection shaft comprises an adjusting shaft, a fixed plate and a support assembly arranged on the adjusting shaft, wherein the fixed plate is arranged on a pipe mouth, the adjusting shaft is rotatably arranged on the fixed plate and passes from the fixed plate through the center of the inspection shaft, the support assembly comprises a support rod, a push-pull rod, a movable sleeve and a support plate arranged on the adjusting shaft, the support rod is evenly distributed on the adjusting shaft, a fixed sleeve is arranged on the fixed plate, the adjusting shaft passes through the fixed sleeve and is rotatably connected to the fixed sleeve, the end of the support rod is hinged to the fixed sleeve, the push-pull rod corresponds to the support rod one by one and is hinged to the support plate, the support plate is used to abut against the shaft wall, and the movable sleeve is threadedly sleeved on the adjusting shaft.

[0006] Furthermore, reinforcement plates are provided at both ends of the fixing plate, and the two ends of the fixing plate are located on the ports of the inspection well shaft, and the two reinforcement plates are in contact with the shaft walls on both sides of the inspection well shaft.

[0007] Furthermore, the reinforcement plate is arranged in an arc shape, and an anti-slip pad is arranged on one side of the reinforcement plate that contacts the wellbore wall.

[0008] Furthermore, movable plates are provided at both ends of the fixed plate, the movable plates are inserted at both ends of the fixed plate and can move inside the fixed plate, the reinforcing plate is provided on the movable plate, and the fixed plate is provided with locking pieces for fixing the movable plate.

[0009] Furthermore, one side of the support plate that contacts the wellbore wall is arranged in an arc shape.

[0010] Furthermore, a mounting hole for installing a fixing sleeve is provided at the center position of the fixing plate, a mounting tube for passing through the mounting hole and a mounting sleeve provided on the mounting tube to fix the fixing sleeve on the fixing plate are provided on the fixing sleeve, and the adjusting shaft passes through the mounting sleeve and the mounting tube.

[0011] Furthermore, a handle is provided at one end of the adjusting shaft located outside the shaft of the inspection well, and the handle is detachably provided on the adjusting shaft.

[0012] To sum up, the utility model includes at least one of the following beneficial effects: when in use, the adjusting shaft is installed on the fixed plate, and the fixed plate is fixed at the position of the pipe mouth. The movable sleeve moves upward by rotating the adjusting shaft. During the upward movement of the movable sleeve, the push-pull rod is pushed upward. The push-pull rod pushes the support rod upward, so that the support rod rotates upward and contacts the side wall of the inspection well shaft to support the inspection well shaft. After use, the adjusting shaft is rotated in the opposite direction to move the movable sleeve downward. The push-pull rod pulls the support rod to rotate downward, so that the support rod leaves the side wall of the inspection well shaft. The fixed plate is removed to remove the inner support device from the inspection well shaft, which can reduce the impact of backfill soil on the inspection well shaft during backfilling and cause damage to the inspection well shaft. At the same time, the support device is more convenient to install and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0014] Figure 2 for Figure 1 A magnified view of part A;

[0015] Figure 3 This is a schematic diagram of the installation of the support assembly of the embodiment of the utility model.

[0016] Description of reference numerals:

[0017] 1. Adjusting shaft; 2. Fixed plate; 21. Reinforcement plate; 22. Movable plate; 23. Locking piece; 3. Support assembly; 31. Support rod; 32. Push-pull rod; 33. Moving sleeve; 34. Support plate; 4. Handle; 5. Fixed sleeve; 51. Mounting tube; 52. Mounting sleeve. DETAILED DESCRIPTION

[0018] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0019] The following is combined with Figure 1-3 The utility model is described in further detail.

[0020] The utility model embodiment discloses an inner support device for a thin-wall prefabricated inspection well. Figure 1-Figure 3 The inner support device for the thin-walled prefabricated inspection shaft comprises an adjusting shaft 1, a fixing plate 2 and a supporting assembly 3 arranged on the adjusting shaft 1, wherein the fixing plate 2 is arranged on the pipe mouth, the adjusting shaft 1 is rotatably arranged on the fixing plate 2 and passes through the fixing plate 2 at the center of the inspection shaft, the supporting assembly 3 comprises a supporting rod 31, a push-pull rod 32 and a movable sleeve 33 arranged on the adjusting shaft 1, the supporting rod 31 and the push-pull rod 32 are each provided with three, the supporting rod 31 is evenly distributed on the adjusting shaft 1, a fixing sleeve 5 is arranged on the fixing plate 2, the adjusting shaft 1 passes through the fixing sleeve 5 and is rotatably connected to the fixing sleeve 5, the end of the supporting rod 31 is hinged to the fixing sleeve 5, the fixing sleeve 5 can be a bearing, an annular sleeve, etc., the push-pull rod 32 corresponds to the supporting rod 31 one by one and is hinged to the supporting rod 31, the movable sleeve 33 is threadedly sleeved on the adjusting shaft 1, and the end of the supporting rod 31 is hinged to the movable sleeve 33 The movable sleeve 33 is hinged, and when the adjusting shaft 1 is rotated, the movable sleeve 33 moves so that the push-pull rod 32 pushes the support rod 31 to contact the wall of the shaft. When in use, the adjusting shaft 1 is installed on the fixed plate 2, and the fixed plate 2 is fixed at the position of the pipe mouth. By rotating the adjusting shaft 1, the movable sleeve 33 moves upward, and the movable sleeve 33 pushes the push-pull rod 32 upward during the upward movement. The push-pull rod 32 pushes the support rod 31 upward, so that the support rod 31 rotates upward and contacts the side wall of the shaft of the inspection well to support the shaft of the inspection well. After use, the adjusting shaft 1 is rotated in the opposite direction to make the movable sleeve 33 move downward, and the push-pull rod 33 pulls the support rod 31 to rotate downward, so that the support rod 31 leaves the side wall of the shaft of the inspection well, and the fixed plate 2 is removed to remove the inner support device from the shaft of the inspection well, which can reduce the impact of backfill soil on the shaft of the inspection well during backfilling and cause damage to the shaft of the inspection well. At the same time, the support device is more convenient to install and can be reused.

[0021] In this embodiment, the support assembly 3 also includes a support plate 34 arranged on the support rod 31 and the push-pull rod 32, and the ends of the support rod 31 and the push-pull rod 32 are hinged on the support plate 34, and the support plate 34 is used to abut against the wellbore wall. The side of the support plate 34 that abuts against the wellbore wall is arranged in an arc shape. The support plate 34 can increase the contact area between the support rod 31 and the side wall of the inspection wellbore, avoiding the situation where the support rod 34 abuts against the side wall of the inspection wellbore and causing damage to the inspection wellbore. At the same time, the arc-shaped support plate 34 can better fit with the side wall of the inspection wellbore, and the supporting effect is better.

[0022] In this embodiment, the support plate 34 is provided with an anti-skid pad on the side of the shaft wall. The anti-skid pad is a rubber pad that can increase the friction between the support plate 34 and the side wall of the shaft of the inspection well, thereby preventing the support plate 34 from sliding on the side wall of the shaft of the inspection well during backfilling. At the same time, it can also have a buffering effect on the side wall of the shaft of the inspection well and protect the side wall of the shaft of the inspection well.

[0023] In this embodiment, reinforcing plates 21 are provided at both ends of the fixing plate 2. The two ends of the fixing plate 2 are located on the ports of the inspection well shaft. The two reinforcing plates 21 are in contact with the well shaft walls on both sides of the inspection well shaft to fix the fixing plate 2 on the pipe mouth.

[0024] In this embodiment, the reinforcement plate 21 is arranged in an arc shape, and an anti-skid pad is arranged on one side of the reinforcement plate 21 that contacts the shaft wall. The arc-shaped reinforcement plate 21 can better fit with the side wall of the inspection shaft, and the fixing effect is better. At the same time, the anti-skid pad is made of rubber pad, which can increase the friction between the reinforcement plate 21 and the side wall of the inspection shaft, and the fixation is more stable.

[0025] In this embodiment, movable plates 22 are provided at both ends of the fixed plate 2. The movable plates 22 are inserted at both ends of the fixed plate 2 and can move inside the fixed plate 2. The reinforcing plate 21 is provided on the movable plate 22. The fixed plate 2 is provided with a locking member 23 for fixing the movable plate 22. The locking member 23 is a bolt. By moving the movable plate 21 to both ends, the reinforcing plate 21 is made to contact the side wall of the inspection well shaft, and the movable plate 22 is fixed to the fixed plate 2 by bolts. The ends of the movable plates 22 at both ends are located on the pipe mouth to fix the fixed plate 2.

[0026] In this embodiment, a mounting hole for installing a fixing sleeve 5 is provided at the center position of the fixing plate 2, and a mounting tube 51 for passing through the mounting hole and a mounting sleeve 52 provided on the mounting tube 51 to fix the fixing sleeve 5 on the fixing plate 2 are provided on the fixing sleeve 5, and the adjusting shaft 1 passes through the mounting sleeve 52 and the mounting tube 51. During installation, the fixing sleeve 5 is first installed on the adjusting shaft 1, and the adjusting shaft 1 is passed through the mounting hole on the fixing plate 2, and then the mounting tube 51 is passed through the mounting hole, and the mounting sleeve 52 is tightened on the mounting tube 51 to fix the fixing sleeve 5 on the fixing plate 2, so as to facilitate disassembly and installation.

[0027] In this embodiment, a handle 4 is provided at one end of the adjusting shaft 1 located outside the shaft of the inspection well. The handle 4 is detachably provided on the adjusting shaft 1. The adjusting shaft 1 is rotated by rotating the handle 4, so that the rotation of the adjusting shaft 1 is more convenient. The end cross-section of the adjusting shaft 1 is polygonal and can be inserted into the handle 4, so as to facilitate the installation and disassembly of the handle 4.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An internal support device for a thin-walled prefabricated inspection well shaft, characterized in that: The invention comprises an adjusting shaft (1), a fixing plate (2) and a supporting assembly (3) arranged on the adjusting shaft (1); the fixing plate (2) is arranged on a pipe mouth; the adjusting shaft (1) is rotatably arranged on the fixing plate (2) and passes through the fixing plate (2) to the center of the inspection well shaft; the supporting assembly (3) comprises a supporting rod (31) arranged on the adjusting shaft (1), a push-pull rod (32), a movable sleeve (33) and a supporting plate (34); the supporting rod (31) is evenly distributed on the adjusting shaft (1); a fixing sleeve (5) is arranged on the fixing plate (2); the adjusting shaft (1) passes through the fixing sleeve (5) and is rotatably connected to the fixing sleeve (5); the end of the supporting rod (31) is hinged to the fixing sleeve (5); the push-pull rod (32) corresponds to the supporting rod (31) one by one and is hinged to the supporting plate (34); the supporting plate (34) is used to abut against the well shaft wall; the movable sleeve (33) is threadedly sleeved on the adjusting shaft (1).

2. The inner support device for a thin-walled prefabricated inspection shaft according to claim 1 is characterized in that: Both ends of the fixing plate (2) are provided with reinforcing plates (21), and the two ends of the fixing plate (2) are located on the ports of the inspection well shaft, and the two reinforcing plates (21) are in contact with the shaft walls on both sides of the inspection well shaft.

3. The inner support device for a thin-walled prefabricated inspection shaft according to claim 2 is characterized in that: The reinforcing plate (21) is arranged in an arc shape, and an anti-slip pad is arranged on one side of the reinforcing plate (21) that contacts the wellbore wall.

4. The inner support device for a thin-walled prefabricated inspection shaft according to claim 2 is characterized in that: The two ends of the fixed plate (2) are provided with movable plates (22), the movable plates (22) are inserted into the two ends of the fixed plate (2) and can move inside the fixed plate (2), the reinforcing plate (21) is arranged on the movable plate (22), and the fixed plate (2) is provided with a locking piece (23) for fixing the movable plate (22).

5. The inner support device for a thin-walled prefabricated inspection shaft according to claim 1 is characterized in that: The support plate (34) is arranged in an arc shape on one side which contacts the wellbore wall.

6. The inner support device for a thin-wall prefabricated inspection shaft according to claim 1 is characterized in that: A mounting hole for mounting a fixing sleeve (5) is provided at the center of the fixing plate (2); a mounting tube (51) for passing through the mounting hole and a mounting sleeve (52) provided on the mounting tube (51) for fixing the fixing sleeve (5) on the fixing plate (2) are provided on the fixing plate (2); and the adjusting shaft (1) passes through the mounting sleeve (52) and the mounting tube (51).

7. The inner support device for a thin-wall prefabricated inspection shaft according to claim 1 is characterized in that: A handle (4) is provided at one end of the adjustment shaft (1) located outside the shaft of the inspection well, and the handle (4) is detachably arranged on the adjustment shaft (1).

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