Tunnel construction protection device

Abstract

The utility model discloses a tunnel construction protection device, which belongs to the technical field of tunnel construction, and comprises a support unit and a frame structure, the support unit comprises a top support plate and a side support plate, the top support plate and the side support plate carry out omnibearing support protection on the inner wall of a tunnel, and in addition, an adjusting unit is arranged on the frame structure. The height of the top supporting plate can be adjusted through the adjusting unit so as to adapt to tunnels with different heights, the two sides of the frame structure are connected with the side supporting plates through the traction units, the traction units are used for guaranteeing the stability of the side supporting plates, and therefore the supporting and protecting effect on the inner side walls of the tunnels is improved; in addition, the longitudinal reinforcing ribs and the transverse reinforcing ribs are distributed on the inner wall of the top supporting plate and the inner wall of the side supporting plate, the supporting and protecting performance of the top supporting plate and the side supporting plate is improved, and the protecting effect of the protecting device is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction, and in particular relates to a tunnel construction protection device. Background Art

[0002] The tunnel construction protection device is a device used in the field of tunnel engineering construction technology to support the inner wall of the tunnel and prevent the collapse of the inner wall of the tunnel from causing safety risks. Therefore, the device is widely used in the field of tunnel construction technology to ensure the personal safety of construction workers.

[0003] The existing tunnel construction protection device includes a support plate, which is supported on the inner wall of the tunnel to avoid the risk of collapse. However, the existing tunnel construction protection device is difficult to adjust and has certain inconveniences in use. In order to solve the above problems, Chinese invention patent CN116733509A discloses a safety protection device for tunnel portal construction, which includes a mobile lifting platform and a protection unit. The protection unit is arranged above the mobile lifting platform. The protection unit includes a fixed shaft and a U-shaped rotating base. The fixed shaft is installed at the center of the upper surface of the mobile lifting platform. The two sides of the fixed shaft are symmetrically provided with rotating shafts, and the rotating shaft is rotatably connected to the U-shaped rotating base. A No. 1 electric push rod is installed at the top of the No. 1 electric push rod, and a long spring rod is installed at the top of the No. 1 electric push rod. Short spring rods are installed at the top of the No. 1 electric push rods on both sides. The tops of the long spring rods and the short spring rods are jointly provided with an arc-shaped protection plate. When support and protection are required, the arc-shaped protection plate is pushed by the electric push rod to support and protect the inner top wall of the tunnel, thereby avoiding the risk of collapse.

[0004] Although the above-mentioned safety protection device can support and protect the tunnel to a certain extent, the above-mentioned device can only support the inner top wall of the tunnel, and the scope of support and protection is limited. It cannot achieve the purpose of fully supporting and protecting the inner wall of the tunnel. Therefore, there are certain limitations in the process of use. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A tunnel construction protection device comprises a support unit and a frame structure, wherein the support unit is arranged on the frame structure, and the inner wall of the tunnel is supported and protected by the support unit. The support unit comprises a top support plate and a side support plate, wherein the top support plate supports and protects the top wall of the tunnel, and the side support plate supports and protects the inner wall of the tunnel. The top of the frame structure is connected to the top support plate via an adjustment unit, and the height of the top support plate is adjusted via the adjustment unit. Both sides of the frame structure are connected to the side support plates via a traction unit, and the traction unit is used to improve the supporting and protecting ability of the side support plates to the inner wall of the tunnel.

[0008] Preferably, in the above-mentioned tunnel construction protection device, the adjustment unit includes a sliding beam installed on the top of the frame structure, the sliding beam is slidably installed in the vertical beams on both sides of the frame structure, the top of the sliding beam is connected to the top support plate, the top of the frame structure is connected to a hydraulic cylinder, the output end of the hydraulic cylinder is connected to the top support plate, and the top support plate is driven up and down by the operation of the hydraulic cylinder.

[0009] Preferably, in the above-mentioned tunnel construction protection device, the adjustment unit further comprises a locking member, and the locking member is used to relatively fix the sliding beam and the vertical beam of the frame structure.

[0010] Preferably, in the above-mentioned tunnel construction protection device, the locking member includes a structure in which a pin cooperates with a pin hole, and pin holes are provided on the sliding beam and the vertical beam. After the height of the top support plate is adjusted, the sliding beam is fixed relative to the vertical beam through the cooperation of the pin hole and the pin.

[0011] Preferably, in the above-mentioned tunnel construction protection device, the locking member includes a shaped piece arranged on the top of the sliding beam and a fixed plate inserted between the shaped pieces. One end of the hydraulic cylinder is connected to the frame structure, and the other end is connected to the fixed plate. When the hydraulic cylinder works to drive the fixed plate to rise, the fixed plate pulls the sliding beam to slide relative to the vertical beam until the fixed plate abuts against the top support plate.

[0012] Preferably, in the above-mentioned tunnel construction protection device, the locking member also includes a reinforcement structure with a self-locking function arranged between the fixed plate and the frame structure, one end of the reinforcement structure is connected to the fixed plate, and the other end is connected to the frame structure.

[0013] Preferably, in the above-mentioned tunnel construction protection device, a fixing platform is also fixedly installed on the inner wall of the top support plate, and when the fixing plate abuts against the top support plate, both ends of the fixing plate abut against the lower surface of the fixing platform.

[0014] Preferably, in the above-mentioned tunnel construction protection device, the traction unit also includes a reinforcement structure with a self-locking function, and the reinforcement structure is located between the side support plate and the frame structure to improve the stability of the side support plate.

[0015] Preferably, in the above-mentioned tunnel construction protection device, the reinforcement structure with self-locking function includes a vertical traction member installed between the fixed plate and the frame structure and a horizontal traction member and a diagonal support member between the side support plate and the frame structure, one end of the horizontal traction member is connected to the frame structure, and the other end is connected to the inner wall of the side support plate, and the diagonal support member is inclined, one end is connected to the frame structure, and the other end is connected to the side support plate, and the diagonal support member and the horizontal traction member fix the side support plate through the stability of the triangle.

[0016] Preferably, in the above-mentioned tunnel construction protection device, the length of the reinforcement structure with a self-locking function is adjustable. The reinforcement structure includes an adjusting rod and threaded rods threadedly assembled at both ends of the adjusting rod. When the adjusting rod is rotated, the threaded rods on both sides can be driven to screw in or out to adjust the length of the reinforcement structure.

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

[0018] The tunnel construction protection device in the utility model includes a frame structure and a support unit. The support unit includes a top support plate and a side support plate, which can support the inner wall of the tunnel in all directions. The frame structure and the top support plate are connected by an adjustment unit. The adjustment unit is used to increase the height of the top support plate to adapt to tunnels of different heights. The adjustment unit includes a locking member. The locking member is used to ensure the stability of the top support plate. The frame structure and the side support plates are connected by a traction unit. The traction unit includes a horizontal traction member and an oblique support member, which is used to ensure the stability of the side support plate, thereby supporting and protecting the tunnel. In addition, the length of the horizontal traction member and the oblique support member in the utility model is adjustable to ensure the supporting effect on the side support plate. The length of the vertical traction member in the adjustment unit is also adjustable to ensure the stability of the top support plate. In addition, transverse reinforcement ribs and longitudinal reinforcement ribs are distributed on the inner walls of the top support plate and the side support plate in the utility model. The protective performance of the support unit is ensured by the transverse reinforcement ribs and the longitudinal reinforcement ribs, and the protective effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the tunnel construction protection device in the utility model;

[0020] Figure 2 It is a front view of the tunnel construction protection device in the utility model;

[0021] Figure 3 for Figure 2 A magnified view of the structure at center;

[0022] Figure 4 It is a front view of the support unit in the utility model;

[0023] Figure 5 for Figure 4A magnified view of the structure at B in the middle;

[0024] Figure 6 This is a schematic diagram of the split structure of the support unit in the utility model;

[0025] Figure 7 This is a schematic diagram of the inner wall structure of the support unit in the utility model;

[0026] Figure 8 It is a cross-sectional view of the longitudinal reinforcing rib in the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the reinforcement structure in the utility model.

[0028] The corresponding relationship between the various figure labels and component names in the figure is as follows:

[0029] 100, support unit; 200, frame structure; 300, adjustment unit; 400, traction unit;

[0030] 101. top support plate; 102. side support plate;

[0031] 101a, fixing platform; 101b, fixing ear; 102a, hinge; 101c, longitudinal reinforcing rib; 101d, transverse reinforcing rib;

[0032] 301, sliding beam; 302, I-shaped part; 303, fixed plate; 304, hydraulic cylinder; 305, vertical traction part;

[0033] 401, horizontal traction member; 402, diagonal support member;

[0034] C. Adjustment rod; D. Threaded rod; E. Handshake. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0038] like Figure 1 as well as Figure 2 As shown, it is a structural diagram of the tunnel construction protection device in this embodiment. The tunnel construction protection device in this embodiment includes a support unit 100 and a frame structure 200. The support unit 100 is installed on the frame structure 200, and the support unit 100 supports and protects the inner wall of the tunnel in the tunnel, avoiding the risk of tunnel collapse, thereby ensuring the safety of tunnel construction.

[0039] like Figure 1 As shown, the support unit 100 in this embodiment includes a top support plate 101. The top support plate 101 in this embodiment is an arc-shaped structure so that it can fit on the inner top wall of the tunnel. In addition, in order to avoid the problem that the tunnel support in the prior art is difficult to support the inner walls on both sides, the support unit 100 in this embodiment also includes side support plates 102. In this embodiment, the top support plate 101 supports and protects the inner top wall of the tunnel, and the side support plates 102 support and protect the inner walls on both sides of the tunnel, thereby ensuring the construction safety performance of the tunnel.

[0040] like Figure 1 As shown, in this embodiment, the side support plates 102 are assembled at the ends of the top support plates 101. Therefore, the top support plates 101 and the side support plates 102 together constitute a support unit 100 to support and protect the inner wall of the tunnel, thereby achieving the purpose of complete support and protection.

[0041] like Figure 2 as well as Figure 3As shown, the frame structure 200 in this embodiment is made of profiles, and the support unit 100 is installed on the frame structure 200, thereby jointly constituting the tunnel construction protection device in this embodiment. In addition, in order to further improve the protection effect of the tunnel construction protection device in this embodiment, the top of the frame structure 200 in this embodiment is connected to the top support plate 101 through an adjusting unit 300, and the height of the top support plate 101 can be adjusted through the adjusting unit 300, so that it is suitable for protecting tunnels of different heights. The adjusting unit 300 in this embodiment includes a sliding beam 301 installed on the top of the frame structure 200, and the sliding beam 301 is slidably installed in the vertical beams on both sides of the frame structure 200, and the sliding beam 301 can slide relative to the vertical beam, so as to adjust the height of the top support plate 101, and the top end of the sliding beam 301 is connected to the top support plate 101. In addition, the top of the frame structure 200 is connected with a hydraulic Cylinder 304, the output end of the hydraulic cylinder 304 is connected to the top support plate 101. In this embodiment, the hydraulic cylinder 304 can drive the top support plate 101 to move up and down. At the same time, the sliding beam 301 moves up and down relative to the vertical beam of the frame structure 200, thereby adjusting the height of the top support plate 101. It is worth noting that the adjustment unit 300 in this embodiment also includes a locking member arranged on the sliding beam 301, and the locking member is used to lock the sliding beam 301 so that it is fixed relative to the vertical beam, thereby ensuring the stability of the top support plate 101. The locking member in this embodiment includes but is not limited to a structure in which a pin and a pin hole cooperate, such as pin holes are provided on the sliding beam 301 and the vertical beam. After the height of the top support plate 101 is adjusted, the sliding beam 301 is fixed relative to the vertical beam through the cooperation of the pin hole and the pin, thereby achieving relative fixation of the top support plate 101, so as to support and protect the inner top wall of the tunnel.

[0042] It is worth noting that the locking member in this embodiment includes but is not limited to the above-mentioned latch and pin hole structure, and also includes the following technical solutions in this embodiment.

[0043] like Figure 2 as well as Figure 3 As shown, the locking member in this embodiment includes a profiled piece 302 arranged on the top of the sliding beam 301 and a fixed plate 303 inserted between the profiled pieces 302. One end of the hydraulic cylinder 304 in this embodiment is connected to the frame structure 200, and the other end is connected to the fixed plate 303. When the hydraulic cylinder 304 works to drive the fixed plate 303 to rise, the fixed plate 303 pulls the sliding beam 301 to slide relative to the vertical beam until the fixed plate 303 abuts against the top support plate 101. When the hydraulic cylinder 304 continues to work, the top support plate 101 is driven to move upward through the fixed plate 303 to abut against the top wall in the tunnel, thereby completing the top support protection work.

[0044] In order to further ensure the stability of the support plate 101, the locking member in this embodiment also includes a vertical traction member 305 arranged between the fixed plate 303 and the frame structure 200. One end of the vertical traction member 305 is connected to the fixed plate 303, and the other end is connected to the frame structure 200. When the hydraulic cylinder 304 drives the support plate 101 to rise to the destination, the frame structure 200 and the fixed plate 303 are locked by the vertical traction member 305, thereby achieving relative fixation of the support plate 101.

[0045] In this embodiment, since the top support plate 101 is an arc-shaped structure and the fixing plate 303 is a horizontal structure, in order to avoid damage to the top support plate 101 caused by squeezing of the fixing plate 303 at both ends of the horizontal structure, as shown in FIG. Figure 3 as well as Figure 4 As shown, in this embodiment, a fixing platform 101a is also fixedly installed on the inner wall of the top support plate 101. When the fixing plate 303 abuts against the top support plate 101, both ends of the fixing plate 303 abut against the lower surface of the fixing platform 101a, thereby avoiding the problem of damage to the top support plate 101 caused by the fixing plate 303.

[0046] In addition, if Figure 4 as well as Figure 5 As shown, in this embodiment, side support plates 102 are movably installed at both ends of the top support plate 101. Specifically, a fixing ear 101b is installed on the inner wall of the top support plate 101, and a hinge 102a is installed on the inner wall of the side support plate 102. The hinge 102a and the fixing ear 101b are pin-connected by a pin shaft, so that the side support plate 102 can rotate relative to the top support plate 101, so as to facilitate the disassembly of the side support plate 102 and the top support plate 101. However, in order to ensure the stability of the side support plate 102, so that the side support plate 102 can support and protect the inner wall of the tunnel, as shown in FIG. Figure 2 As shown, a traction unit 400 is further provided between the frame structure 200 and the side support plate 102 in this embodiment to ensure the stability of the side support plate 102 so that the side support plate 102 supports the inner side wall of the tunnel.

[0047] like Figure 2As shown, the traction unit 400 in this embodiment includes a horizontal traction member 401 and a diagonal support member 402. One end of the horizontal traction member 401 is connected to the frame structure 200, and the other end is connected to the inner wall of the side support plate 102. The diagonal support member 402 is inclined, one end is connected to the frame structure 200, and the other end is connected to the side support plate 102. The diagonal support member 402 and the horizontal traction member 401 fix the side support plate 102 through the stability principle of the triangle, so that the side support plate 102 supports the inner wall of the tunnel. During the specific operation, first, the top support plate 101 is used to support the inner top wall of the tunnel. Since the side support plates 102 can rotate relative to the top support plates 101, the side support plates 102 are fitted to the inner side walls of the tunnel. Then, the horizontal traction members 401 are installed to fix the side support plates 102 relative to the frame structure 200, so as to support and protect the inner side walls of the tunnel. In order to further ensure the stability of the side support plates 102, the diagonal support members 402 are installed to strengthen the stability of the side support plates 102, thereby achieving the purpose of efficient protection.

[0048] like Fig. 9 As shown, the vertical traction member 305, the horizontal traction member 401 and the diagonal support member 402 in this embodiment serve as a reinforcement structure with a self-locking function to stabilize the top support plate 101 and the side support plate 102, and the vertical traction member 305, the horizontal traction member 401 and the diagonal support member 402 in this embodiment serve as a reinforcement structure with adjustable length. Specifically, the reinforcement structure includes an adjusting rod C and a threaded rod D threadedly assembled at both ends of the adjusting rod C. When the adjusting rod C is rotated, the threaded rods D on both sides can be driven to screw in or out to adjust the length of the reinforcement structure, so as to facilitate the support and protection operation. In order to facilitate the rotation of the adjusting rod C, in this embodiment, a handshake E is also provided on the adjusting rod C, and the handshake E is used to drive the adjusting rod C to rotate, thereby adjusting the length of the reinforcement structure.

[0049] like Figure 6 as well as Figure 7 As shown, the top support plate 101 and the side support plate 102 in this embodiment can be spliced ​​together to form an integral structure so as to be suitable for tunnels of different depths. The inner walls of the top support plate 101 and the side support plate 102 are provided with longitudinal reinforcing ribs 101c along the horizontal direction and transverse reinforcing ribs 101d along the height direction. The longitudinal reinforcing ribs 101c and the transverse reinforcing ribs 101d in this embodiment are used to improve the protective strength of the top support plate 101 and the side support plate 102, thereby avoiding the deformation and damage of the top support plate 101 or the side support plate 102 due to excessive force in a specific area.

[0050] In this embodiment, the longitudinal reinforcement ribs 101c and the transverse reinforcement ribs 101d are hollow structures and their cross-sections are trapezoidal, which reduces the weight of the top support plate 101 and the side support plate 102 while ensuring the protective strength of the top support plate 101 and the side support plate 102.

[0051] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A tunnel construction protection device, comprising a support unit (100) and a frame structure (200), wherein the support unit (100) is arranged on the frame structure (200), and the inner wall of the tunnel is supported and protected by the support unit (100), characterized in that: The support unit (100) comprises a top support plate (101) and a side support plate (102); the top support plate (101) supports and protects the top wall of the tunnel, and the side support plate (102) supports and protects the inner side wall of the tunnel; the top of the frame structure (200) is connected to the top support plate (101) via an adjustment unit (300); the height of the top support plate (101) is adjusted via the adjustment unit (300); both sides of the frame structure (200) are connected to the side support plates (102) via traction units (400); the traction units (400) are used to improve the supporting and protective capabilities of the side support plates (102) for the inner side wall of the tunnel.

2. The tunnel construction protection device according to claim 1, characterized in that: The adjustment unit (300) comprises a sliding beam (301) installed on the top of the frame structure (200), the sliding beam (301) being slidably installed in the vertical beams on both sides of the frame structure (200), the top end of the sliding beam (301) being connected to the top support plate (101), the top of the frame structure (200) being connected to a hydraulic cylinder (304), the output end of the hydraulic cylinder (304) being connected to the top support plate (101), and the top support plate (101) being driven to move up and down by the operation of the hydraulic cylinder (304).

3. The tunnel construction protection device according to claim 2, characterized in that: The adjustment unit (300) further comprises a locking member, which is used to fix the sliding beam (301) relative to the vertical beam of the frame structure (200).

4. The tunnel construction protection device according to claim 3, characterized in that: The locking member comprises a structure in which a latch and a pin hole cooperate. Pin holes are provided on the sliding beam (301) and the vertical beam. When the height of the top support plate (101) is adjusted, the sliding beam (301) is fixed relative to the vertical beam through the cooperation of the pin hole and the latch.

5. The tunnel construction protection device according to claim 3, characterized in that: The locking member comprises a profiled piece (302) arranged on the top of the sliding beam (301) and a fixed plate (303) inserted between the profiled pieces (302); one end of the hydraulic cylinder (304) is connected to the frame structure (200), and the other end is connected to the fixed plate (303); when the hydraulic cylinder (304) works to drive the fixed plate (303) to rise, the fixed plate (303) pulls the sliding beam (301) to slide relative to the vertical beam until the fixed plate (303) abuts against the top support plate (101).

6. The tunnel construction protection device according to claim 5, characterized in that: The locking member further comprises a reinforcing structure with a self-locking function, which is arranged between the fixing plate (303) and the frame structure (200); one end of the reinforcing structure is connected to the fixing plate (303), and the other end is connected to the frame structure (200).

7. The tunnel construction protection device according to claim 5, characterized in that: A fixing platform (101a) is also fixedly mounted on the inner wall of the top support plate (101), and when the fixing plate (303) abuts against the top support plate (101), both ends of the fixing plate (303) abut against the lower surface of the fixing platform (101a).

8. The tunnel construction protection device according to claim 1, characterized in that: The traction unit (400) also includes a reinforcement structure with a self-locking function, which is located between the side support plate (102) and the frame structure (200) and is used to improve the stability of the side support plate (102).

9. The tunnel construction protection device according to claim 8, characterized in that: The reinforcement structure with a self-locking function comprises a vertical traction member (305) installed between a fixed plate (303) and a frame structure (200), and a horizontal traction member (401) and a diagonal bracing member (402) installed between a side bracing plate (102) and the frame structure (200); one end of the horizontal traction member (401) is connected to the frame structure (200), and the other end is connected to the inner wall of the side bracing plate (102); and the diagonal bracing member (402) is arranged obliquely, with one end connected to the frame structure (200) and the other end connected to the side bracing plate (102); the diagonal bracing member (402) and the horizontal traction member (401) fix the side bracing plate (102) through the stability of a triangle.

10. The tunnel construction protection device according to claim 6 or 9, characterized in that: The reinforcement structure with a self-locking function is adjustable in length. The reinforcement structure comprises an adjusting rod (C) and threaded rods (D) threadedly assembled at both ends of the adjusting rod (C). When the adjusting rod (C) is rotated, the threaded rods (D) on both sides can be driven to be screwed in or out to adjust the length of the reinforcement structure.

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