Protective supporting device for safe construction of vertical shaft

Abstract

The utility model relates to the technical field of vertical shaft construction, in particular to a protective supporting device for vertical shaft safety construction, which comprises a vertical pipe, and the top of the vertical pipe is connected with a plurality of fixing plates through buffer components; an annular groove is formed in the inner bottom of the vertical pipe in the length direction, a protection pipe is inserted into the annular groove, a telescopic rod is fixedly installed on the inner top wall of the annular groove, and the bottom of the telescopic rod is fixedly connected with the top of the protection pipe. A plurality of damping springs are fixedly installed on the outer surface of the protection pipe in a circumferential array mode, and an arc-shaped baffle is fixedly installed at the other end of each damping spring. The baffles are attached to the inner wall of the vertical shaft through the damping springs, so that the inner wall of the vertical shaft is supported, the inner wall of the vertical shaft is protected conveniently, the safety of construction in the vertical shaft is improved, the telescopic rods are controlled to adjust the position of the protective pipe in the vertical pipe, and the use convenience of the protective supporting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft construction, in particular to a protective support device for safe shaft construction. Background Art

[0002] A vertical shaft is a well-shaped pipe with upright cave walls. It is actually a collapse funnel. Its plane profile is square, long, or irregularly circular. The long strip shape is developed along a group of joints, while the square or circular shape is developed along two groups of joints. The shaft wall is steep and almost upright. Sometimes you can see the surface of the underground river from the vertical shaft.

[0003] However, during the construction of the vertical shaft, the inner wall of the vertical shaft may become unstable and collapse or rocks and soil may collapse due to equipment disturbance. The collapsed rocks may fall into the interior of the vertical shaft, threatening the personal safety of construction personnel in the shaft, creating a huge safety hazard, reducing the safety of construction in the shaft, and also reducing the efficiency of the vertical shaft construction, bringing inconvenience to subsequent construction. In view of this, the utility model proposes a protective support device for safe construction of the vertical shaft. Utility Model Content

[0004] The purpose of the utility model is to provide a protective support device for safe construction of a shaft, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a protective support device for safe construction of a shaft, comprising a vertical pipe, the top of the vertical pipe is connected to a plurality of fixing plates through a buffer assembly, and fixing holes are opened on the fixing plates;

[0006] An annular groove is opened at the bottom of the vertical tube along the length direction, a protective tube is inserted in the annular groove, a telescopic rod is fixedly installed on the inner top wall of the annular groove, and the bottom of the telescopic rod is fixedly connected to the top of the protective tube; a plurality of shock-absorbing springs are fixedly installed in a circular array on the outer surface of the protective tube, and an arc-shaped baffle is fixedly installed on the other end of the shock-absorbing spring.

[0007] As a preferred technical solution, a plurality of fixing plates are arranged in a circular array, and anti-slip grooves are provided on the lower surfaces of the fixing plates.

[0008] As a preferred technical solution, an anti-slip strip is fixedly installed on the inner wall of the annular groove of the vertical pipe, and the surface of the anti-slip strip is slidably connected to the inner wall of the protective tube.

[0009] As a preferred technical solution, the buffer assembly includes a retaining ring arranged on the top of the vertical pipe and a positioning ring arranged on the bottom of the fixed plate, the bottom of the positioning ring is provided with a plurality of circular holes and storage holes, a buffer spring is fixedly installed on the inner top wall of the circular hole, a buffer rod is fixedly connected to the bottom of the buffer spring, a damping rod is fixedly installed on the inner top wall of the storage hole, a plug rod is fixedly connected to the bottom of the damping rod, and the bottoms of the buffer rod and the plug rod are both fixedly connected to the top of the retaining ring.

[0010] As a preferred technical solution, a return spring is arranged around the surface of the insertion rod, and two ends of the return spring are fixedly connected to the bottom of the positioning ring and the top of the retaining ring respectively.

[0011] As a preferred technical solution, a swivel is provided at the bottom of the protective tube, and a limiting ring groove is provided on the upper surface of the swivel. The outer edge and the inner edge top of the limiting ring groove are fixedly connected with relatively arranged positioning plates, and the distance between the two positioning plates is smaller than the width of the sliding block. The inner sliding connection of the limiting ring groove is provided with a sliding block, and a connecting rod extending outward from the positioning plate is fixedly installed on the top of the sliding block, and the top of the connecting rod is fixedly connected to the bottom of the protective tube.

[0012] As a preferred technical solution, a socket for the sliding block to be inserted is provided on the positioning plate, the socket is communicated with the limiting ring groove, and the size of the socket is adapted to the width of the sliding block.

[0013] As a preferred technical solution, the number of the sliding blocks and the number of the jacks are both three, and the three sliding blocks are equidistantly distributed inside the limiting ring groove, and the surface of the sliding block is slidably connected to the inner wall of the limiting ring groove.

[0014] As a preferred technical solution, rubber strips are fixedly mounted on both sides of the upper surface of the sliding block, and the upper surface of the rubber strips is in contact with the inner top wall of the positioning plate.

[0015] As a preferred technical solution, the lower surface of the sliding block is further inlaid with balls, and the surface of the balls is rollingly connected to the inner bottom wall of the limiting ring groove.

[0016] Beneficial Effects

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The utility model arranges a baffle and a shock-absorbing spring so that the baffle fits the inner wall of the shaft, thereby facilitating protective support for the inner wall of the shaft and preventing the inner wall of the shaft from collapsing and injuring construction workers due to vibration during shaft construction.

[0019] 2. The utility model sets a telescopic rod. When the height of the protective support device needs to be adjusted, the external controller is started to control the telescopic rod to adjust the position of the protective tube in the vertical tube, which is convenient for adjusting the position of the protective tube and subsequent use, thereby improving the convenience of using the protective support device.

[0020] 3. The utility model provides a buffer assembly, facilitates the installation of the fixed plate through a positioning ring and a retaining ring, and plays a buffering role through a reset spring, a buffer spring, a buffer rod, a damping rod and an insertion rod, so as to reduce the impact of the device on the stability of the device when the device is installed in the shaft and the construction vibration in the shaft.

[0021] 4. The utility model provides a swivel at the bottom of the protection tube, and the swivel is in close contact with the bottom of the shaft, thereby improving the overall stability of the device and reducing the wear and impact on the protection tube. The swivel is convenient for installation and disassembly through the limit ring groove, the jack, the connecting rod and the positioning plate, and is convenient for subsequent replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the buffer component of the utility model;

[0025] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the vertical pipe and the protective pipe of the utility model;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the swivel of the utility model;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the sliding block of the utility model;

[0028] Figure 6 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0029] In the figure: 1. vertical tube; 2. retaining ring; 3. plug rod; 4. buffer rod; 5. positioning ring; 6. buffer spring; 7. damping rod; 8. protective tube; 9. telescopic rod; 10. swivel; 11. sliding block; 12. connecting rod; 13. fixing plate; 14. anti-slip strip; 15. shock-absorbing spring; 16. baffle; 17. rubber strip; 18. ball; 19. reset spring; 20. socket; 21. positioning plate; 22. limit ring groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] According to the attached Figure 1-6 As shown, the embodiment of the utility model provides a protective support device for safe construction of a shaft, comprising a vertical pipe 1,

[0032] The top of the vertical pipe 1 is connected with a plurality of fixing plates 13 through a buffer assembly. The fixing plates 13 are provided with fixing holes. Specifically, the fixing holes are oblong holes. By providing the fixing plates 13 and the fixing holes, a fixed connection with the ground around the shaft opening is achieved, which facilitates the positioning and use of the device.

[0033] An annular groove is provided at the inner bottom of the vertical tube 1 along the length direction, and a protective tube 8 is inserted into the annular groove. A telescopic rod 9 is fixedly installed on the inner top wall of the annular groove, and the bottom of the telescopic rod 9 is fixedly connected to the top of the protective tube 8; a plurality of shock-absorbing springs 15 are fixedly installed on the outer surface of the protective tube 8 in a circular array, and an arc-shaped baffle 16 is fixedly installed on the other end of the shock-absorbing spring 15.

[0034] The damping spring 15 and the baffle 16 are arranged so that the baffle 16 fits tightly against the inner wall of the shaft, thereby facilitating the protection and support of the inner wall of the shaft, preventing the inner wall of the shaft from collapsing, and ensuring the safety of the workers and subsequent normal construction. Specifically, the telescopic rod 9 is a hydraulic rod, and a controller is externally connected to the hydraulic rod. When the height position of the protective tube 8 needs to be adjusted, the extension of the telescopic rod 9 is controlled by an external controller to adjust the position of the protective tube 8 in the vertical tube 1, thereby improving the convenience of using the protective support device.

[0035] The plurality of fixing plates 13 are arranged in a circular array, and the lower surface of the fixing plate 13 is provided with anti-slip grooves, which can improve the stability of the connection between the fixing plate 13 and the ground.

[0036] The inner wall of the annular groove of the vertical pipe 1 is fixedly mounted with an anti-slip strip 14, and the surface of the anti-slip strip 14 is slidably connected to the inner wall of the protective tube 8. The provision of the anti-slip strip 14 increases the friction between the vertical pipe 1 and the protective tube 8, and improves the stability of the protective tube 8 when moving.

[0037] The buffer assembly includes a retaining ring 2 arranged at the top of the vertical pipe 1 and a positioning ring 5 arranged at the bottom of the fixed plate 13. The bottom of the positioning ring 5 is provided with a plurality of circular holes and receiving holes. A buffer spring 6 is fixedly installed on the inner top wall of the circular hole. A buffer rod 4 is fixedly connected to the bottom of the buffer spring 6. A damping rod 7 is fixedly installed on the inner top wall of the receiving hole. A plug rod 3 is fixedly connected to the bottom of the damping rod 7. The bottoms of the buffer rod 4 and the plug rod 3 are both fixedly connected to the top of the retaining ring 2. By providing the retaining ring 2 and the positioning ring 5, the fixing of the fixed plate 13 to the ground around the wellhead is facilitated, and the surface of the retaining ring 2 can contact the inner wall of the vertical shaft to support the entire device and improve the stability of the device.

[0038] The surface of the plug rod 3 is surrounded by a return spring 19, and the two ends of the return spring 19 are respectively fixedly connected to the bottom of the positioning ring 5 and the top of the retaining ring 2. By providing the buffer rod 4, the buffer spring 6, the plug rod 3, the damping rod 7 and the return spring 19, the protective support device is supported and buffered, the impact of the disturbance generated during the shaft construction on the protective support device is reduced, and the stability of the protective support device during subsequent use is ensured; and the installation and fixation of the fixing plate 13 is facilitated, and the impact on the vertical pipe 1 and the protective pipe 8 during installation is reduced.

[0039] like Figure 1 and Figure 4 As shown, a swivel 10 is provided at the bottom of the protection tube 8, the swivel 10 is hollow inside, and a limiting annular groove 22 is provided on the upper surface of the swivel 10. Positioning plates 21 arranged opposite to each other are fixedly connected to the top of the outer edge and inner edge of the limiting annular groove 22. The distance between the two positioning plates 21 is smaller than the width of the sliding block 11. The sliding block 11 is slidably connected inside the limiting annular groove 22. A connecting rod 12 extending out of the positioning plate 21 is fixedly installed on the top of the sliding block 11. The top of the connecting rod 12 is fixedly connected to the bottom of the protection tube 8. By providing the swivel 10, the bottom of the swivel 10 is connected to the bottom of the shaft, which improves the effect of the bottom of the protection support device and the bottom of the shaft, increases the sealing performance of the bottom of the shaft and the device, and reduces the wear on the protection tube 8.

[0040] The positioning plate 21 is provided with a socket 20 for the sliding block 11 to be inserted into, the socket 20 is connected to the limiting ring groove 22, and the size of the socket 20 is adapted to the width of the sliding block 11. By providing the socket 20, the sliding block 11 is inserted into the limiting ring groove 22, which facilitates the installation and removal of the rotating ring 10, facilitates the timely replacement of the rotating ring 10, and prolongs the service life of the device.

[0041] Specifically, there are three sliding blocks 11 and three jacks 20, and the three sliding blocks 11 are equidistantly distributed inside the limiting ring groove 22. The surface of the sliding block 11 is slidably connected to the inner wall of the limiting ring groove 22, so that the rotation of the swivel is more stable and convenient for installation and disassembly.

[0042] In one embodiment, if Figure 5 As shown, rubber strips 17 are fixedly installed on both sides of the upper surface of the sliding block 11, and the upper surface of the rubber strip 17 contacts the inner top wall of the positioning plate 21. By providing the rubber strip 17, the surface of the rubber strip 17 is squeezed with the inner wall of the positioning plate 21, which facilitates the installation and fixation of the sliding block 11. The lower surface of the sliding block 11 is also inlaid with a ball 18, and the surface of the ball 18 is rollingly connected with the inner bottom wall of the limiting ring groove 22. By providing the ball 18, it is convenient to drive the sliding block 11 to slide in the limiting slide groove 22 when the rotating ring 10 is rotated under the action of an external force.

[0043] When using the protective support device for safe construction of a vertical shaft of the utility model, the device is placed inside the vertical shaft, and then fixed to the ground around the vertical shaft mouth through the fixing plate 13. The fixing plate 13 is provided with a fixing hole, and can be positioned by an expansion screw or other threaded components. During installation, the buffer assembly's reset spring 19, buffer spring 6, buffer rod 4, damping rod 7, and plug rod 3 are used for buffering operations to reduce the impact on the protective support device during the installation process, thereby playing a role in buffering protection. At the same time, the shock-absorbing spring 15 supports and buffers the baffle 16, so that the baffle 16 fits with the inner wall of the vertical shaft, thereby facilitating the protective support of the inner wall of the vertical shaft to prevent it from collapsing and falling due to the influence of the vertical shaft construction. When the position of the baffle 16 needs to be adjusted, the position of the protective tube 8 in the vertical tube 1 is adjusted by starting the external controller to control the telescopic rod 9, thereby facilitating the adjustment operation, facilitating subsequent use, and improving the convenience of using the protective support device. Align the sliding block 11 with the socket 20, then rotate the swivel 10, the sliding block 11 enters the interior of the limiting ring groove 22, and after the sliding block 11 and the inner wall of the limiting ring groove 22 slide to the positioning plate 21, fix the swivel 10 at the bottom of the protective tube 8. When it needs to be disassembled, rotate the swivel 10 to align the sliding block 11 with the socket 20 again, and then the sliding block 11 on the swivel 10 can be pulled out from the interior of the limiting ring groove 22.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A protective support device for safe shaft construction, characterized in that: It comprises a vertical pipe (1), the top of the vertical pipe (1) is connected to a plurality of fixing plates (13) via a buffer assembly, and fixing holes are provided on the fixing plates (13); An annular groove is provided at the bottom of the vertical tube (1) along the length direction, a protective tube (8) is inserted into the annular groove, a telescopic rod (9) is fixedly mounted on the inner top wall of the annular groove, and the bottom of the telescopic rod (9) is fixedly connected to the top of the protective tube (8); a plurality of shock-absorbing springs (15) are fixedly mounted on the outer surface of the protective tube (8) in a circular array, and an arc-shaped baffle (16) is fixedly mounted on the other end of the shock-absorbing spring (15).

2. A protective support device for safe shaft construction according to claim 1, characterized in that: The plurality of fixing plates (13) are arranged in a circumferential array, and the lower surface of the fixing plates (13) is provided with anti-slip grooves.

3. A protective support device for safe shaft construction according to claim 1, characterized in that: An anti-slip strip (14) is fixedly mounted on the inner wall of the annular groove of the vertical pipe (1), and the surface of the anti-slip strip (14) is slidably connected to the inner wall of the protective pipe (8).

4. A protective support device for safe shaft construction according to claim 1, characterized in that: The buffer assembly comprises a retaining ring (2) arranged at the top of the vertical pipe (1) and a positioning ring (5) arranged at the bottom of the fixing plate (13); a plurality of circular holes and receiving holes are provided at the bottom of the positioning ring (5); a buffer spring (6) is fixedly installed on the inner top wall of the circular hole; a buffer rod (4) is fixedly connected to the bottom of the buffer spring (6); a damping rod (7) is fixedly installed on the inner top wall of the receiving hole; a plug rod (3) is fixedly connected to the bottom of the damping rod (7); and the bottoms of the buffer rod (4) and the plug rod (3) are both fixedly connected to the top of the retaining ring (2).

5. A protective support device for safe shaft construction according to claim 4, characterized in that: A return spring (19) is arranged around the surface of the insertion rod (3), and two ends of the return spring (19) are respectively fixedly connected to the bottom of the positioning ring (5) and the top of the retaining ring (2).

6. A protective support device for safe shaft construction according to claim 1, characterized in that: A rotating ring (10) is provided at the bottom of the protective tube (8), and a limiting ring groove (22) is provided on the upper surface of the rotating ring (10). Positioning plates (21) arranged opposite to each other are fixedly connected to the top of the outer edge and inner edge of the limiting ring groove (22). A sliding block (11) is slidably connected to the inside of the limiting ring groove (22). A connecting rod (12) extending out of the outer side of the positioning plate (21) is fixedly installed on the top of the sliding block (11), and the top of the connecting rod (12) is fixedly connected to the bottom of the protective tube (8).

7. A protective support device for safe shaft construction according to claim 6, characterized in that: The positioning plate (21) is provided with an insertion hole (20) for the sliding block (11) to be inserted into, and the insertion hole (20) is communicated with the limiting ring groove (22).

8. A protective support device for safe shaft construction according to claim 7, characterized in that: The number of the sliding blocks (11) and the number of the jacks (20) are both three, and the three sliding blocks (11) are equidistantly distributed inside the limiting ring groove (22), and the surface of the sliding block (11) is slidably connected to the inner wall of the limiting ring groove (22).

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