Telescopic movable type arch crown steel plate installation auxiliary device

Abstract

A telescopic movable type arch crown steel plate installation auxiliary device comprises a steel pipe bracket and a movable steel pipe frame, the steel pipe bracket is arranged on the upper portion of the movable steel pipe frame and comprises a bracket steel pipe, a bracket horizontal telescopic screw and a jack, and the lengths of three layers of transverse steel pipes of the bracket steel pipe are sequentially increased; bracket horizontal telescopic screws are arranged in the middle of the three-layer transverse steel pipe and at the two ends of the lower-layer transverse steel pipe; a jack is arranged at the bottom of the transverse steel pipe; the bottom of the jack is arranged at the top of the movable steel pipe frame, the movable steel pipe frame comprises a steel pipe frame, telescopic screws, moving wheels and a telescopic base, the telescopic screws are arranged on transverse steel pipes and vertical steel pipes at the top of the steel pipe frame, and the telescopic base and the moving wheels are arranged at the bottom of the steel pipe frame. According to the device, auxiliary installation and construction of hydraulic tunnel vault steel plates with different section sizes within a certain range can be achieved, the device can be moved and fixed according to different construction conditions, and the construction efficiency is greatly improved.

Description

Technical field:

[0001] The utility model belongs to the technical field of water conservancy and hydropower engineering construction, in particular to the technical field of reinforcement and installation of existing hydraulic tunnel vault steel plates, specifically, an installation auxiliary device capable of telescopically moving the position of the installed vault steel plates. Background technology:

[0002] With the rapid development of my country's water conservancy, a large number of hydraulic tunnels have been built across the country. With the continuous increase in the use time of hydraulic tunnels, their structural strength has been reduced to varying degrees. In order to effectively ensure the safe operation of hydraulic tunnels, it is necessary to reinforce the existing tunnel structure. The common way to reinforce hydraulic tunnels is to paste steel plates inside, use wet-curing glue on the lining surface and steel plates, reserve anchor holes through the steel plates, and fix the steel plates with self-locking anchors. Since hydraulic tunnels have a certain height, it is often necessary to set up a support platform for installation when installing the arch steel plate. Conventional support platforms are generally customized according to the cross-sectional dimensions of the hydraulic tunnel, and are generally immovable. They can only be used for arch installation of a hydraulic tunnel cross-sectional dimension, and can only achieve close contact between the middle and upper parts of the arch steel plate and the lining, and it is difficult to close contact between the two sides of the arch steel plate, which adds a lot of workload to the subsequent construction of self-locking anchors. For the reinforcement of hydraulic tunnels with different cross-sectional sizes, multiple support platforms of different sizes are required, which greatly reduces the efficiency of the construction of the arch steel plate reinforcement and increases the construction cost. Summary of the invention:

[0003] The utility model provides a retractable and movable arch steel plate installation auxiliary device, which can realize the auxiliary installation construction of hydraulic tunnel arch steel plates with different cross-sectional sizes within a certain size range. According to the cross-sectional size of the hydraulic tunnel, the width and height of the auxiliary device are adjusted to achieve close contact between various parts of the arch steel plate and the tunnel lining, which facilitates the construction of self-locking anchor rods. At the same time, the auxiliary device can be moved and fixed according to different construction conditions, which greatly improves the construction efficiency of the hydraulic tunnel arch steel plate installation.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a telescopic movable arch steel plate installation auxiliary device, which comprises a steel pipe bracket and a movable steel pipe bracket. The steel pipe bracket is arranged on the upper part of the movable steel pipe bracket and close to the arch of a hydraulic tunnel, and the steel pipe bracket supports the tunnel arch steel plate; the steel pipe bracket comprises a bracket steel pipe, a bracket horizontally telescopic screw rod, and a jack; the bracket steel pipe comprises a transverse steel pipe, a longitudinal steel pipe and a vertical steel pipe; the transverse steel pipe and the longitudinal steel pipe are correspondingly provided with three layers of upper, middle and lower transverse steel pipes, and the lengths of the upper, middle and lower transverse steel pipes are lengthened in sequence; the bracket horizontally telescopic screw rod comprises a bracket middle horizontal telescopic screw and bracket two side horizontal telescopic screws; a bracket middle horizontal telescopic screw is respectively arranged in the middle of the upper, middle and lower transverse steel pipes of the three layers, and a bracket two telescopic screw is respectively arranged at both ends of the lower transverse steel pipe A side horizontal retractable screw, two vertically arranged jacks are symmetrically arranged at the bottom of a single lower horizontal steel pipe, and the jacks are arranged under the corresponding vertical steel pipes; the bottom of the jack is fixedly arranged on the top of a movable steel pipe frame, and the movable steel pipe frame includes a steel pipe frame, a retractable screw, a movable wheel, and a retractable base. The steel pipe frame includes two symmetrically arranged side frames, and a top horizontal steel pipe is horizontally arranged across the top of the two side frames. The side frame is welded into a frame structure by horizontal steel pipes, longitudinal steel pipes and vertical steel pipes. A retractable base and a movable wheel are arranged at the lower part of the horizontal steel pipe at the bottom of the side frame. The retractable screw includes a horizontal retractable screw and a vertical retractable screw. The horizontal retractable screw is arranged on the top horizontal steel pipe of the steel pipe frame, and the vertical retractable screw is arranged on the vertical steel pipe of the side frame of the steel pipe frame.

[0006] The length direction of the steel pipe bracket is consistent with the length direction of the movable steel pipe frame.

[0007] The bracket steel pipe and the jack, the bracket steel pipe and the bracket horizontal telescopic screw rod are all connected by welding.

[0008] The movable steel pipe frame and the steel pipe bracket are connected by welding with the jack through the steel pipe.

[0009] There are two parallel horizontal steel pipes and two longitudinal steel pipes on each layer of the steel pipe bracket. The horizontal steel pipes and longitudinal steel pipes are vertically arranged, and the lengths of the upper, middle and lower three layers of horizontal steel pipes on each side are lengthened successively; there are four vertical steel pipes on the steel pipe bracket, and the vertical steel pipes are vertically arranged with the corresponding horizontal steel pipes and longitudinal steel pipes.

[0010] Diagonal bracing steel pipes are provided at the contact positions between the two ends of the middle-layer transverse steel pipe on the steel pipe bracket and the corresponding lower-layer transverse steel pipe and vertical steel pipe. One end of the diagonal bracing steel pipe is fixedly connected to the corresponding end of the middle-layer transverse steel pipe, and the other end is fixedly connected to the contact position between the corresponding lower-layer transverse steel pipe and vertical steel pipe.

[0011] The tunnel vault steel plate has the same curvature as the tunnel vault.

[0012] Two top transverse steel pipes are arranged across the tops of the two side frames.

[0013] A single side frame is provided with two groups of vertical steel pipes along the length direction of the movable steel pipe frame, each group of vertical steel pipes is provided with three in parallel, four transverse steel pipes are horizontally fixed to the six vertical steel pipes, six longitudinal steel pipes are horizontally fixed to the six vertical steel pipes, and the vertical steel pipes are vertically arranged to the corresponding transverse steel pipes and longitudinal steel pipes.

[0014] The moving wheels are universal wheels, four of which are symmetrically arranged front, back, left and right. The bottoms of the two side frames are rotatably connected to the moving wheels. Two retractable bases are symmetrically arranged on both sides of each moving wheel. The retractable base includes a lifting screw and a steel pad, and the steel pad is welded at the bottom of the lifting screw.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model changes the cross-sectional size of the utility model by symmetrically adjusting the vertical telescopic screw rod, the horizontal telescopic screw rod, and the horizontal telescopic screw rod in the middle of the bracket, so that the utility model matches the cross-sectional size of the hydraulic tunnel, thereby realizing the auxiliary installation of the arch steel plates of the hydraulic tunnels with different cross-sectional sizes.

[0017] 2. The utility model fixes the position of the utility model by adjusting the lifting bolts of the retractable base so that the steel pad contacts the ground; by adjusting the lifting bolts of the retractable base, the retractable base is separated from the ground, the moving wheels contact the ground, and the movement of the utility model can be achieved through human push.

[0018] 3. The utility model adjusts the symmetrical jacks to make the upper part of the steel plate close to the lining of the hydraulic tunnel, and symmetrically adjusts the horizontal retractable screws on both sides of the bracket to make the two sides of the steel plate close to the lining of the hydraulic tunnel, and quickly realizes the rapid close contact between various parts of the arch steel plate and the lining of the hydraulic tunnel, which greatly improves the construction efficiency of the installation of the hydraulic tunnel arch steel plate, and the subsequent self-locking anchor construction efficiency is also improved.

[0019] 4. The utility model is reusable.

[0020] In summary, the utility model is used for the close-fitting reinforcement and installation of the steel plate of the hydraulic tunnel vault. According to the different cross-sectional dimensions of the reinforced hydraulic tunnel, the cross-sectional dimensions of the hydraulic tunnel applicable to the utility model can be adjusted by using the retractable screw rod, and the various parts of the vault can be closely fitted with the hydraulic tunnel by using the jack and the retractable screw rod, which creates a powerful condition for the subsequent self-locking anchor rod construction. The construction is convenient, the construction period is short, the construction cost is low, and the process is simple. The degree of close fit between the steel plate and the lining of the hydraulic tunnel can be effectively improved, and the overall construction efficiency can be accelerated. Through the application of the utility model, the construction efficiency can be improved, the waste of manpower and material resources can be reduced, and energy-saving and environmental protection can be achieved, which can better practice the concept of green saving. Description of the drawings:

[0021] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0022] Figure 2 It is a schematic longitudinal section diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the trustee steel frame of the utility model;

[0024] Figure 4 This is a schematic diagram of the movable steel pipe frame of the utility model;

[0025] Figure 5 It is a schematic diagram of the retractable base of the utility model.

[0026] Reference numerals in the figures:

[0027] 1-Steel pipe bracket, 2-Movable steel pipe rack, 3-Tunnel arch steel plate, 4-Hydraulic tunnel.

[0028] 11-bracket steel pipe, 12-horizontally retractable screw rod in the middle of the bracket, 13-horizontally retractable screw rods on both sides of the bracket, 14-jack.

[0029] 21-steel pipe, 22-horizontally telescopic screw rod, 23-vertically telescopic screw rod, 24-moving wheel, 25-telescopic base.

[0030] 251-lifting screw, 252-steel pad. Specific implementation method:

[0031] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies identical or similar to the present invention do not exceed the scope of protection of the present invention.

[0032] See also Figure 1-Figure 5 The utility model provides a retractable and movable arch steel plate installation auxiliary device, which includes a steel pipe bracket 1 and a movable steel pipe frame 2. The overall structure is a truss structure, and each component is connected by welding. The steel pipe bracket 1 is arranged on the upper part of the movable steel pipe frame 2 and close to the arch of a hydraulic tunnel 4. The steel pipe bracket 1 is a bracket that directly supports the tunnel arch steel plate 3. The tunnel arch steel plate 3 has the same curvature as the tunnel arch.

[0033] The steel pipe bracket 1 is fixed to the upper part of the movable steel pipe frame 2, and the length direction of the steel pipe bracket 1 is consistent with the length direction of the movable steel pipe frame 2. The steel pipe bracket 1 includes a bracket steel pipe 11, a bracket horizontal telescopic screw, and a jack 14. The bracket steel pipe 11 and the jack 14, the bracket steel pipe 11 and the bracket horizontal telescopic screw are all connected by welding. The bracket steel pipe 11 includes a transverse steel pipe, a longitudinal steel pipe and a vertical steel pipe. The transverse steel pipe and the longitudinal steel pipe are correspondingly provided with three layers of upper, middle and lower. The lengths of the three layers of transverse steel pipes are successively lengthened. In this embodiment, the transverse steel pipes and longitudinal steel pipes of each layer on the steel pipe bracket 1 are respectively arranged in parallel. There are two horizontal steel pipes and longitudinal steel pipes arranged vertically, and the lengths of the three horizontal steel pipes on each side are successively lengthened. There are four vertical steel pipes, and the vertical steel pipes are arranged vertically with the corresponding horizontal steel pipes and longitudinal steel pipes; the two ends of the middle horizontal steel pipe on the steel pipe bracket 1 are provided with diagonal brace steel pipes at the contact positions with the corresponding lower horizontal steel pipes and vertical steel pipes, and the diagonal brace steel pipes are fixedly connected with the corresponding end of the middle horizontal steel pipe at one end, and fixedly connected with the contact position with the corresponding lower horizontal steel pipe and vertical steel pipe at the other end. The horizontal telescopic screw of the bracket includes a horizontal telescopic screw 12 in the middle of the bracket and horizontal telescopic screws 13 on both sides of the bracket. A horizontal telescopic screw 12 in the middle of the three horizontal steel pipes of the upper, middle and lower layers is arranged, and a horizontal telescopic screw 13 on both sides of the bracket is arranged at both ends of the lower horizontal steel pipe. Two vertically arranged jacks 14 are symmetrically arranged at the bottom of the single lower horizontal steel pipe, and the jacks 14 are arranged below the corresponding vertical steel pipes to facilitate the adjustment of the height of the steel pipe bracket 1.

[0034] The movable steel pipe frame 2 is horizontally placed on the ground at the bottom of the hydraulic tunnel 4. The movable steel pipe frame 2 is arranged at the lower part of the steel pipe bracket 1. The bottom of the jack 14 is fixedly arranged on the top of the movable steel pipe frame 2. The movable steel pipe frame 2 and the steel pipe bracket 1 are welded to the jack 14 through a steel pipe. The movable steel pipe frame 2 includes a steel pipe frame 21, a retractable screw, a movable wheel 24, and a retractable base 25. The steel pipe frame 21 includes two symmetrically arranged side frames. Two top transverse steel pipes are arranged across the tops of the two side frames. The side frames are welded into a frame structure by transverse steel pipes, longitudinal steel pipes and vertical steel pipes. In this embodiment, a single side frame is provided with two groups of vertical steel pipes along the length direction of the movable steel pipe frame 2. Each group of vertical steel pipes has three parallel pipes. Four transverse steel pipes are horizontally fixed to six vertical steel pipes. Six longitudinal steel pipes are horizontally fixed to six vertical steel pipes. The vertical steel pipes are vertically arranged to the corresponding transverse steel pipes and longitudinal steel pipes. A retractable base 25 and a moving wheel 24 are arranged at the lower part of the horizontal steel pipe at the bottom of the side frame. The bottom of the two side frames are rotatably connected with the moving wheel 24. The moving wheel 24 is a universal wheel, so that the workers can transfer the installation auxiliary device to the construction position during the construction of the small tunnel. There are four moving wheels 24 symmetrically arranged in front, back, left and right directions. Two retractable bases 25 are symmetrically arranged on both sides of each moving wheel 24. The retractable base 25 includes a jacking screw 251 and a steel pad 252. The steel pad 252 is welded at the bottom of the jacking screw 251. The auxiliary device can be moved to any work location along the bottom of the hydraulic tunnel 4 with the help of the moving wheel 24 at the bottom of the movable steel pipe frame 2. The retractable screw includes a horizontal retractable screw 22 and a vertical retractable screw 23. The horizontal retractable screw 22 is arranged on the top horizontal steel pipe of the steel pipe frame 21, and the vertical retractable screw 23 is arranged on the vertical steel pipe of the side frame of the steel pipe frame 21.

[0035] The auxiliary device realizes the rapid and close contact between the hydraulic tunnel vault steel plate and the lining through the steel pipe bracket 1 and the movable steel pipe rack 2, thereby accelerating the installation efficiency of the steel plate.

[0036] The arch steel plate installation auxiliary device can realize the close-fitting reinforcement installation of hydraulic tunnel arch steel plates with different cross-sectional sizes. The reinforcement installation method includes the following steps:

[0037] (1) According to the cross-sectional size range of the hydraulic tunnel 4 to be reinforced, the arch steel plate installation auxiliary device composed of the steel pipe bracket 1 and the movable steel pipe frame 2 is manufactured and quality inspected.

[0038] (2) After the cracks in the hydraulic tunnel 4 are treated, the arch steel plate installation auxiliary device is transported to the middle of the designated position, and the vertical telescopic screw 23, the horizontal telescopic screw 22, and the horizontal telescopic screw 12 in the middle of the bracket are symmetrically adjusted according to the cross-sectional size of the hydraulic tunnel 4, so that the arch steel plate installation auxiliary device matches the cross-sectional size of the hydraulic tunnel 4.

[0039] (3) The lifting bolts 251 of the retractable base 25 are adjusted to separate the moving wheels 24 from the ground, thereby fixing the position of the arch steel plate installation auxiliary device so that it cannot move.

[0040] (4) The tunnel vault steel plate 3 processed into an arc shape corresponding to the vault of the hydraulic tunnel 4 is symmetrically placed on the steel pipe bracket 1, and the jacks 14 are symmetrically adjusted to make the upper part of the tunnel vault steel plate 3 closely attached to the lining of the hydraulic tunnel 4.

[0041] (5) The horizontal retractable screw rods 13 on both sides of the bracket are symmetrically adjusted to make the two sides of the tunnel vault steel plate 3 closely attached to the lining of the hydraulic tunnel 4.

[0042] (6) After the self-locking anchor rod construction, lining surface and tunnel vault steel plate 3 are poured with wet curing glue in sequence, the lifting bolts 251 of the retractable base 25 are adjusted to separate the retractable base 25 from the ground, and the moving wheel 24 is in contact with the ground. The vault steel plate installation auxiliary device is pushed by manpower to move to the next tunnel vault steel plate 3 installation position. Repeat steps (2) to (5) until the installation and reinforcement construction of the tunnel vault steel plate 3 in the hydraulic tunnel 4 is completed, and the components are recovered.

Claims

1. A retractable and movable arch steel plate installation auxiliary device, characterized in that: The auxiliary device comprises a steel pipe bracket (1) and a movable steel pipe bracket (2). The steel pipe bracket (1) is arranged on the upper part of the movable steel pipe bracket (2) and close to the vault of a hydraulic tunnel (4). The steel pipe bracket (1) supports the tunnel vault steel plate (3). The steel pipe bracket (1) comprises a bracket steel pipe (11), a bracket horizontally retractable screw rod, and a jack (14). The bracket steel pipe (11) comprises a transverse steel pipe, a longitudinal steel pipe, and a vertical steel pipe. The transverse steel pipe and the longitudinal steel pipe are correspondingly provided with three layers, namely, upper, middle, and lower. The lengths of the three layers of transverse steel pipes are successively lengthened. The bracket horizontally retractable screw rod comprises a bracket middle horizontal retractable screw rod (12) and bracket side horizontal retractable screw rods (13). A bracket middle horizontal retractable screw rod (12) is arranged in the middle of each of the three layers of transverse steel pipes, and a bracket side horizontal retractable screw rod (13) is arranged at each end of the lower transverse steel pipe. The bottom of a single lower transverse steel pipe is opposite to the bottom of the lower transverse steel pipe. Two vertically arranged jacks (14) are arranged below the corresponding vertical steel pipes; the bottom of the jack (14) is fixedly arranged on the top of the movable steel pipe frame (2); the movable steel pipe frame (2) comprises a steel pipe frame (21), a telescopic screw rod, a movable wheel (24), and a telescopic base (25); the steel pipe frame (21) comprises two symmetrically arranged side frames; a top transverse steel pipe is arranged across the top of the two side frames; the side frames are welded together into a frame structure by transverse steel pipes, longitudinal steel pipes and vertical steel pipes; a telescopic base (25) and a movable wheel (24) are arranged at the lower part of the transverse steel pipe at the bottom of the side frames; the telescopic screw rod comprises a horizontal telescopic screw rod (22) and a vertical telescopic screw rod (23); the horizontal telescopic screw rod (22) is arranged on the top transverse steel pipe of the steel pipe frame (21); and the vertical telescopic screw rod (23) is arranged on the vertical steel pipe of the side frame of the steel pipe frame (21).

2. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: The length direction of the steel pipe bracket (1) is consistent with the length direction of the movable steel pipe frame (2).

3. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: The bracket steel pipe (11) and the jack (14), the bracket steel pipe (11) and the bracket horizontal telescopic screw rod are all connected by welding.

4. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: The movable steel pipe frame (2) and the steel pipe bracket (1) are welded to the jack (14) via steel pipes.

5. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: Each layer of the steel pipe bracket (1) has two parallel transverse steel pipes and two longitudinal steel pipes, which are arranged vertically. The lengths of the upper, middle and lower transverse steel pipes on each side are lengthened successively. The steel pipe bracket (1) has four vertical steel pipes, which are arranged vertically to the corresponding transverse steel pipes and longitudinal steel pipes.

6. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: Diagonal bracing steel pipes are provided at the contact positions between the two ends of the middle-layer transverse steel pipe on the steel pipe bracket (1) and the corresponding lower-layer transverse steel pipe and vertical steel pipe. One end of the diagonal bracing steel pipe is fixedly connected to the corresponding end of the middle-layer transverse steel pipe, and the other end is fixedly connected to the contact position between the corresponding lower-layer transverse steel pipe and vertical steel pipe.

7. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: The tunnel vault steel plate (3) has the same curvature as the tunnel vault.

8. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: Two top transverse steel pipes are arranged across the tops of the two side frames.

9. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: The single side frame is provided with two groups of vertical steel pipes along the length direction of the movable steel pipe frame (2), each group of vertical steel pipes has three pipes arranged in parallel, four transverse steel pipes are horizontally fixedly connected to the six vertical steel pipes, six longitudinal steel pipes are horizontally fixedly connected to the six vertical steel pipes, and the vertical steel pipes are vertically arranged to the corresponding transverse steel pipes and longitudinal steel pipes.

10. The telescopic and movable arch steel plate installation auxiliary device according to claim 1 is characterized in that: The moving wheels (24) are universal wheels, four of which are symmetrically arranged front, back, left and right. The bottoms of the two side frames are rotatably connected to the moving wheels (24). Two retractable bases (25) are symmetrically arranged on both sides of each moving wheel (24). The retractable base (25) includes a lifting screw (251) and a steel pad (252). The steel pad (252) is welded to the bottom of the lifting screw (251).

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