Supporting device

Abstract

The utility model belongs to the technical field of tunnel supporting, and particularly relates to a supporting device which comprises a supporting frame, two guide pipes penetrate through the supporting frame, the supporting frame is fixedly connected with a supporting plate through the two guide pipes, a mounting plate is further fixed in the supporting frame, a threaded lifting machine is fixed on the mounting plate, and the threaded lifting machine is fixed on the supporting frame. A mounting pipe is mounted at the output end of the thread elevator through threads, and the mounting pipe is fixedly connected with the two guide pipes; according to the utility model, the screw rod, the fixing piece, the inserting rod and the inserting hole are matched with each other, so that the position of the inserting rod can be simply and conveniently adjusted, the movable plate can be easily locked or unlocked, the movable plate is allowed to freely slide on the mounting rod, and the universal wheel is ensured not to bear the pressure of the supporting frame in the tunnel supporting operation; therefore, a self-locking mechanism is effectively protected from being damaged, meanwhile, after the supporting plate is lifted, the device can provide firm supporting, and collapse or movement of an upper structure is prevented.

Description

Technical Field

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

[0002] In the field of tunnel construction, the tunnel structure is very unstable after blasting. In order to prevent the tunnel from collapsing, temporary support is required on the top of the tunnel, and the support device will be removed after the construction work is completed.

[0003] In the prior art, Chinese utility model patent CN220522607U discloses a "Support Device for Tunnel Construction," comprising a base, a first hydraulic mechanism, a support plate, and two telescopic mechanisms. The first hydraulic mechanism is vertically mounted on the base, with a fixed plate pivotally connected to its top. The support plate is attached to the fixed plate via a bracket. The two telescopic mechanisms abut between the ends of the base and the fixed plate, respectively. Positioning sleeves are located on the base and the fixed plate, surrounding the telescopic mechanisms.

[0004] While existing support devices can effectively support the tunnel ceiling by pushing the fixed plate and support plate into close contact with the tunnel ceiling through a first hydraulic mechanism, in practice, when the support plate supports the tunnel ceiling, the rollers under the base are subjected to pressure. Although the rollers' self-locking structure prevents them from rolling back, their load-bearing capacity is limited. Sustained heavy pressure can damage the rollers' self-locking mechanism, reducing the stability of the support device and making it unsuitable for long-term support.

[0005] In order to solve the above problems, a supporting device is proposed in this application. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a supporting device.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a support device, comprising a support frame, wherein the support frame passes through two guide tubes, the support frame is fixedly connected to a support plate via the two guide tubes, a mounting plate is further fixed inside the support frame, a threaded elevator is fixed to the mounting plate, a mounting tube is threadedly mounted on the output end of the threaded elevator, and the mounting tube is fixedly connected to the two guide tubes;

[0008] Threaded rods are rotatably connected on both sides of the support frame, a pair of jacks are opened on both sides of the inner wall of the support frame, and lifting plates are installed on the two threaded rods through threads. Support plates are fixed on both sides of the two lifting plates located on the support frame, and the top of the threaded rod passes through the mounting plate and is fixed with a second manual turntable;

[0009] The support frame is internally fixed with a pair of mounting rods near the threaded rods, and the support frame is slidably connected to a movable plate through two pairs of mounting rods. Several pairs of universal wheels are fixed to the bottom of the movable plate, and two pairs of fixed plates are fixed to the top of the movable plate. The two pairs of fixed plates are rotatably connected with screws, one end of the screw passes through the fixed plate and is fixed with a first manual turntable, and a fixing piece is also installed on the screw through a thread, and a pair of insertion rods are fixed on one side of the two fixing pieces, and one end of the insertion rods passes through the fixed plate and the jack.

[0010] Preferably, a first guide rod is fixed to one side of the two fixing members located on both sides of the first manual turntable, and the first guide rod passes through the fixing plate.

[0011] Preferably, the outer walls of the first manual turntable and the second manual turntable are both provided with anti-slip grooves.

[0012] Preferably, the distance between the lifting plate and the support plate is greater than the height of the universal wheel.

[0013] Preferably, a second guide rod is fixed inside the support frame at a position close to the threaded rod, and the second guide rod passes through the lifting plate, and the lifting plate has the freedom to move along the height of the second guide rod.

[0014] Preferably, the diameter of the insertion hole is slightly larger than the diameter of the insertion rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the utility model, by arranging the mutual cooperation of the screw rod, the fixing part, the insertion rod and the insertion hole, the position of the insertion rod can be easily adjusted, thereby easily locking or unlocking the movable plate, which allows the movable plate to slide freely on the mounting rod, ensuring that during the tunnel support operation, the universal wheel will not bear the pressure of the support frame, thereby effectively protecting its self-locking mechanism from damage. At the same time, after the support plate is lifted, the device can provide solid support to prevent the collapse or movement of the upper structure. In addition, through the coordinated operation of the second manual turntable and the lifting plate, the position of the support plate can be easily adjusted so that it fits tightly with the ground or easily detaches from the ground, thereby realizing rapid movement of the support device.

[0017] Other additional advantages and benefits of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the movable plate in the present utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the support frame in the present utility model;

[0022] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0023] Figure 5 For this utility model Figure 2 A schematic diagram of the enlarged structure at point B;

[0024] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure at C;

[0025] In the figure: 1. Support frame; 2. Mounting plate; 3. Threaded lifter; 4. Mounting tube; 5. Guide tube; 6. Support plate; 7. Mounting rod; 8. Moving plate; 9. Fixed plate; 10. Screw; 11. First manual turntable; 12. Fixing piece; 13. Insert rod; 14. First guide rod; 15. Insert hole; 16. Threaded rod; 17. Second manual turntable; 18. Lifting plate; 19. Support plate; 20. Second guide rod; 21. Universal wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1-6 The utility model provides the following technical solutions: a support device, including a support frame 1, the support frame 1 is penetrated by two guide tubes 5, the support frame 1 is fixedly connected to a support plate 6 through the two guide tubes 5, a mounting plate 2 is fixed inside the support frame 1, a threaded elevator 3 is fixed on the mounting plate 2, a mounting tube 4 is mounted on the output end of the threaded elevator 3 through a thread, and the mounting tube 4 is fixedly connected to the two guide tubes 5;

[0028] Threaded rods 16 are rotatably connected on both sides of the support frame 1. A pair of jacks 15 are provided on both sides of the inner wall of the support frame 1. Lifting plates 18 are threadedly mounted on the two threaded rods 16. Support plates 19 are fixed on both sides of the two lifting plates 18. The top of the threaded rods 16 passes through the mounting plate 2 and is fixed with a second manual turntable 17.

[0029] A pair of mounting rods 7 are fixed to the inner part of the support frame 1 near the threaded rod 16. The support frame 1 is slidably connected to a movable plate 8 through two pairs of mounting rods 7. Several pairs of universal wheels 21 are fixed to the bottom of the movable plate 8. Two pairs of fixed plates 9 are fixed to the top of the movable plate 8. The two pairs of fixed plates 9 are rotatably connected with screws 10. One end of the screw 10 passes through the fixed plate 9 and is fixed with a first manual turntable 11. A fixing piece 12 is also installed on the screw 10 through a thread. A pair of insertion rods 13 are fixed on one side of the two fixing pieces 12, and one end of the insertion rod 13 passes through the fixed plate 9 and the socket 15. First, use the universal wheels 21 to easily move the equipment to the desired position. Then, rotate the two second manual turntables 17 clockwise to lower the lifting plate 18 and the support plate 19 close to the ground. Then, The two first manual turntables 11 are rotated counterclockwise to push the two fixing members 12 toward the direction of the first manual turntables 11, and at the same time, one end of the insertion rod 13 is disengaged from the two pairs of insertion holes 15 on the support frame 1, thereby releasing the fixed state of the movable plate 8. At this time, the screw elevator 3 is started to drive the mounting tube 4 to move upward, driving the supporting plate 6 to rise, thereby raising the supporting device. When the supporting plate 6 reaches a predetermined height, the screw elevator 3 is stopped. At this time, the supporting plate 6 can firmly support the upper structure to prevent it from collapsing or moving. Since the support plate 19 supports the support frame 1 and the movable plate 8 is in an unfixed state, the movable plate 8 can slide freely on the mounting rod 7. Therefore, the universal wheel 21 will not bear the pressure of the support frame 1, thereby protecting its self-locking mechanism from damage.

[0030] When the support device needs to be moved, the two first manual turntables 11 are rotated clockwise to allow one end of the insertion rod 13 to pass through the fixed plate 9 and the insertion hole 15, thereby fixing the position of the movable plate 8. Subsequently, the two second manual turntables 17 are rotated counterclockwise to allow the support plate 19 to leave the ground, so that the support device can be moved to a new position.

[0031] Specifically, by Figure 5 As shown, in this embodiment, one side of the two fixing members 12 is located on both sides of the first manual turntable 11, and the first guide rod 14 is fixed, and the first guide rod 14 passes through the fixing plate 9; the stability of the fixing member 12 can be increased, making it less likely to shake, thereby improving the stability and safety of the entire support device.

[0032] Specifically, by Figure 6As shown, in this embodiment, the outer walls of the first manual turntable 11 and the second manual turntable 17 are both provided with anti-slip grooves; this helps the operator to get a better grip when rotating the turntable and reduces the risk of slipping.

[0033] Specifically, by Figure 6 As shown, in this embodiment, the distance between the lifting plate 18 and the support plate 19 is greater than the height of the universal wheel 21, so that one side of the support plate 19 is in close contact with the ground.

[0034] Specifically, by Figure 6 As shown, in this embodiment, a second guide rod 20 is fixed inside the support frame 1 near the threaded rod 16, and the second guide rod 20 passes through the lifting plate 18. The lifting plate 18 has the freedom to move along the height of the second guide rod 20; it can ensure that the lifting plate 18 moves more smoothly and accurately in the vertical direction. In addition, the presence of the second guide rod 20 can also prevent the lifting plate 18 from tilting during operation, thereby ensuring the overall stability and safety of the support device.

[0035] Specifically, by Figure 5 As shown, in this embodiment, the aperture of the insertion hole 15 is slightly larger than the diameter of the insertion rod 13; this design can ensure that the insertion rod 13 has a certain room for movement when inserted into the insertion hole 15, which is convenient for the operator to complete the fixing action quickly and accurately. At the same time, the fitting clearance between the insertion rod 13 and the insertion hole 15 should not be too large to prevent loosening during the operation of the support device, thereby affecting the stability of the support plate 6.

[0036] Components not described in detail herein are prior art.

[0037] The working principle and usage process of the present invention are as follows: first, the universal wheel 21 is used to easily move the equipment to the desired position, then, the two second manual turntables 17 are rotated clockwise to lower the lifting plate 18 and make the support plate 19 close to the ground, and then, the two first manual turntables 11 are rotated counterclockwise to push the two fixing members 12 to move in the direction of the first manual turntable 11, and at the same time, one end of the insertion rod 13 is disengaged from the two pairs of insertion holes 15 on the support frame 1, thereby releasing the fixed state of the movable plate 8. At this time, the threaded elevator 3 is started to drive the mounting pipe 4 to move upward, driving the supporting plate 6 to rise, realizing the raising of the supporting device. When the supporting plate 6 reaches the predetermined height, the threaded elevator 3 is stopped. At this time, the supporting plate 6 can firmly support the upper structure to prevent it from collapsing or moving. Since the support plate 19 supports the support frame 1 and the movable plate 8 is in an unfixed state, the movable plate 8 can slide freely on the mounting rod 7. Therefore, the universal wheel 21 will not bear the pressure of the support frame 1, thereby protecting its self-locking mechanism from damage;

[0038] When the support device needs to be moved, the two first manual turntables 11 are rotated clockwise to allow one end of the insertion rod 13 to pass through the fixed plate 9 and the insertion hole 15, thereby fixing the position of the movable plate 8. Subsequently, the two second manual turntables 17 are rotated counterclockwise to allow the support plate 19 to leave the ground, so that the support device can be moved to a new position.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A support device, comprising a support frame (1), characterized in that: The support frame (1) is penetrated by two guide tubes (5), and the support frame (1) is fixedly connected to a support plate (6) through the two guide tubes (5). A mounting plate (2) is also fixed inside the support frame (1), and a threaded elevator (3) is fixed on the mounting plate (2). A mounting tube (4) is mounted on the output end of the threaded elevator (3) through a thread, and the mounting tube (4) is fixedly connected to the two guide tubes (5); Threaded rods (16) are rotatably connected to both sides of the support frame (1), a pair of jacks (15) are provided on both sides of the inner wall of the support frame (1), and lifting plates (18) are threadedly mounted on the two threaded rods (16). Support plates (19) are fixed on both sides of the support frame (1) on the two lifting plates (18), and the top end of the threaded rod (16) passes through the mounting plate (2) and is fixed with a second manual turntable (17); A pair of mounting rods (7) are fixed at positions near the threaded rod (16) inside the support frame (1), and the support frame (1) is slidably connected to a movable plate (8) through two pairs of mounting rods (7). A plurality of pairs of universal wheels (21) are fixed to the bottom of the movable plate (8), and two pairs of fixed plates (9) are fixed to the top of the movable plate (8). The two pairs of fixed plates (9) are rotatably connected to a screw rod (10), one end of the screw rod (10) passes through the fixed plate (9) and is fixed with a first manual turntable (11), and a fixing member (12) is also installed on the screw rod (10) through a thread, and a pair of insertion rods (13) are fixed to one side of the two fixing members (12), and one end of the insertion rod (13) passes through the fixed plate (9) and the socket (15).

2. A support device according to claim 1, characterized in that: One side of the two fixing members (12) is located on both sides of the first manual turntable (11), and a first guide rod (14) is fixed thereto, and the first guide rod (14) passes through the fixing plate (9).

3. A support device according to claim 1, characterized in that: The outer walls of the first manual turntable (11) and the second manual turntable (17) are both provided with anti-slip grooves.

4. A support device according to claim 1, characterized in that: The distance between the lifting plate (18) and the support plate (19) is greater than the height of the universal wheel (21).

5. The support device according to claim 1, characterized in that: A second guide rod (20) is fixed at a position inside the support frame (1) close to the threaded rod (16), and the second guide rod (20) passes through the lifting plate (18). The lifting plate (18) has the freedom to move along the height of the second guide rod (20).

6. A support device according to claim 1, characterized in that: The diameter of the insertion hole (15) is slightly larger than the diameter of the insertion rod (13).

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