Comb tooth type expansion joint auxiliary mounting device

Abstract

The utility model belongs to the field of expansion joint installation, and particularly relates to a comb tooth type expansion joint auxiliary installation device which comprises a supporting frame, two supporting rods are arranged in the middle of the top face of the supporting frame, a lifting device is installed on the upper surfaces of the supporting rods, the lifting device is provided with a lifting rod, and the lifting rod penetrates through a gap between the two supporting rods downwards. The lower end of the lifting rod is fixed with the lifting frame; the lifting frame comprises a connecting cylinder, transverse rods are fixed to the left side and the right side of the connecting cylinder, and lifting rods are slidably arranged on the transverse rods; and the lower part of the connecting cylinder is downwards in threaded connection with a short screw rod. The device is simple in structure, large hoisting equipment is not needed, the stability of the comb-tooth-shaped expansion joint can be better kept, the levelness and height of the comb-tooth-shaped expansion joint can be more flexibly adjusted, the welding height position of an anchoring steel plate of the comb-tooth-shaped expansion joint is guaranteed, and the installation precision of the comb-tooth-shaped expansion joint is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the expansion joint installation field, especially involves a comb tooth type expansion joint auxiliary installation device. BACKGROUND

[0002] Expansion joint has the functions of connection, expansion, bearing, displacement, waterproof, etc., and has the characteristics of anti-warping, multidirectional displacement, and easy replacement of accessories. The construction precision of expansion joint is high, especially the comb tooth type expansion joint needs to bear the vehicle load, etc., to ensure the comfort and safety of driving, and the construction precision requirement is higher. During the installation of the comb tooth type expansion joint, the anchoring steel plate needs to be mechanically hoisted to ensure the height position and horizontality of the expansion joint during the welding process with the reinforcement cage. However, due to the heavy weight of the expansion joint, it is difficult to keep the expansion joint stable during mechanical hoisting, and it is also difficult to adjust the horizontality and height position, which results in low efficiency and poor construction quality. Therefore, an auxiliary device is urgently needed for the installation of the expansion joint to ensure the stability of the expansion joint and the welding height position of the anchoring steel plate, and to improve the installation precision of the expansion joint. SUMMARY

[0003] The problem to be solved by the present application is to overcome the shortcomings of the background art and provide a comb tooth type expansion joint auxiliary installation device.

[0004] The present application is realized by the following technical solutions:

[0005] A comb tooth type expansion joint auxiliary installation device, comprising a support frame, a universal brake wheel is arranged at the bottom of the support frame, two parallel support rods are arranged in the middle of the top surface of the support frame, a lifting device is installed on the upper surface of the support rods, the lifting device has a lifting rod, the lifting rod passes through the gap between the two support rods downward, and the lower end of the lifting rod is fixed with a hoisting frame; the hoisting frame comprises a connecting cylinder, horizontal rods are symmetrically fixed on the left and right sides of the connecting cylinder, hoisting rods are slidably arranged on the two horizontal rods, and the lower part of the hoisting rod is provided with an upwardly inclined curved portion; the connecting cylinder is provided with an internal thread, and the lower part of the connecting cylinder is threadedly connected with a short screw rod downward.

[0006] Preferably, the lifting device is a hollow jack, the piston center hole of the hollow jack vertically penetrates the lifting rod, the lifting rod is a long screw rod, the long screw rod passes through the gap between the two support rods downward, the part of the long screw rod above the piston of the hollow jack is provided with a nut, and the lower end of the long screw rod is fixed with the connecting cylinder.

[0007] Preferably, the lifting device is an electric screw rod elevator, the screw rod of the electric screw rod elevator passes through the gap between the two support rods downward, and the lower end of the screw rod is fixed with the connecting cylinder.

[0008] Preferably, the upper part of the hoisting rod is provided with a perforation, the hoisting rod is arranged on the horizontal rod through the perforation, the upper surface of the hoisting rod is provided with a fixed threaded hole, the fixed threaded hole is communicated with the perforation downward, and a fixed bolt is screwed into the fixed threaded hole.

[0009] Preferably, the cross bar is provided with several adjusting screw holes corresponding to the fixing screw holes, and the fixing bolts can be screwed into the adjusting screw holes.

[0010] Preferably, the support frame is a square frame.

[0011] The comb-tooth type expansion joint auxiliary installation device has simple structure, does not need large hoisting equipment, can better maintain the stability of the comb-tooth type expansion joint, can more flexibly adjust the levelness and height of the comb-tooth type expansion joint, ensures the anchoring steel plate welding height position of the comb-tooth type expansion joint, and improves the installation precision of the comb-tooth type expansion joint. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of the embodiment;

[0013] Figure 2 It is a whole structure schematic view of the embodiment; Figure 1 It is another angle structure schematic view;

[0014] Figure 3 It is a part structure schematic view of the embodiment;

[0015] Figure 4 It is a hoisting frame structure schematic view of the embodiment;

[0016] Figure 5 It is a hoisting rod structure schematic view of the embodiment.

[0017] In the figure, 1 is a support frame, 2 is a universal brake wheel, 3 is a support rod, 4 is a connecting cylinder, 5 is a cross bar, 6 is a hoisting rod, 7 is a bending part, 8 is a short screw rod, 9 is a hollow jack, 10 is a long screw rod, 11 is a nut, 12 is a perforation, 13 is a fixing screw hole, 14 is a fixing bolt, and 15 is an adjusting screw hole. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application.

[0019] The embodiment includes a support frame 1, which is a square frame welded by stainless steel pipes, and a universal brake wheel 2 arranged at the bottom of the support frame 1. Two parallel support rods 3 are arranged at the top surface of the support frame 1, and the support rods 3 are also stainless steel pipes welded with the support frame 1 along the width direction of the support frame 1, and there is a gap between the two support rods 3. A lifting device is arranged on the upper surface of the support rods 3, and the lifting device has a lifting rod, which passes through the gap between the two support rods 3 downward, and the lower end of the lifting rod is fixed with a hoisting frame, and the lifting device is used to move the hoisting frame up and down. The lifting device can be various, as long as it has the function of moving the lifting rod up and down.

[0020] In the embodiment, the lifting device can be preferably a hollow jack 9, and the piston center hole of the hollow jack 9 vertically passes through the lifting rod, which is a long screw rod 10, and the long screw rod 10 passes through the gap between the two support rods 3 downward, and the lower end of the long screw rod 10 is fixed with a connecting cylinder 4 in the middle of the hoisting frame. A nut 11 is arranged on the long screw rod 10, and the nut 11 is located above the piston of the hollow jack 9, and the size of the nut 11 is larger than the diameter of the piston center hole, and the nut 11 is used to limit the long screw rod 10 from falling downward from the hollow part of the hollow jack 9, and when the piston moves upward, the nut 11 and the long screw rod 10 move upward together, and when the piston moves downward, the nut 11 and the long screw rod 10 move downward together with the piston. The existing hollow jack 9 can also be specially processed, and the inner wall of the piston center hole of the hollow jack 9 can be processed into internal threads, so that the long screw rod 10 is connected with the piston by threads, and the piston directly drives the long screw rod 10 to move up and down, and the nut 11 can be omitted.

[0021] The lifting device described above can also be preferably an electric screw rod lifting machine, and the lifting rod is a screw rod, and the screw rod of the electric screw rod lifting machine passes through the gap between the two support rods 3 downward, and the lower end of the screw rod is fixed with the connecting cylinder 4 in the middle of the hoisting frame, and the hoisting frame is driven to move up and down by the screw rod of the electric screw rod lifting machine moving up and down. The example of the electric screw rod lifting machine is not shown in the drawing, because the electric screw rod lifting machine is a mature device, and its structure and working principle will not be described in detail here.

[0022] The lifting frame comprises a connecting cylinder 4, symmetrical horizontal rods 5 fixed on both sides of the connecting cylinder 4, lifting rods 6 slidingly arranged on the horizontal rods 5, the lifting rods 6 being capable of sliding left and right along the horizontal rods 5 to adjust the position, the lower part of the lifting rods 6 being provided with upwardly inclined curved parts 7 capable of hooking the bottom surface of the tooth plate of the comb tooth expansion joint, the inner wall of the connecting cylinder 4 being provided with internal threads, the lower part of the connecting cylinder 4 being threadedly connected with a short screw rod 8 downwardly, the short screw rod 8 being used to press upwardly against the upper surface of the tooth plate of the comb tooth expansion joint to increase the stability of the comb tooth expansion joint after being lifted, the up and down position of the short screw rod 8 being adjusted by screwing the short screw rod 8 in the connecting cylinder 4. Since the lifting rod 6 is subjected to a great pulling force downwardly after the comb tooth expansion joint is lifted, the lifting rod 6 is not easy to move horizontally on the horizontal rod 5, and therefore the lifting rod 6 can not need a separate fixing structure. In order to further increase the stability of the device, the lifting rod 6 can be provided with a perforation 12 in the upper part, the lifting rod 6 being arranged through the perforation 12 on the horizontal rod 5 and being capable of sliding left and right along the horizontal rod 5. A fixing threaded hole 13 is arranged on the upper surface of the lifting rod 6, the fixing threaded hole 13 being communicated with the perforation 12 downwardly, a fixing bolt 14 being screwed into the fixing threaded hole 13. When the lifting rod 6 is moved to a suitable position, the lifting rod 6 is stabilized by screwing the fixing bolt 14, the fixing bolt 14 being pressed against the upper surface of the horizontal rod 5 to increase the friction force, so that the lifting rod 6 is not easy to slide left and right along the horizontal rod 5. Further, a plurality of adjusting threaded holes 15 corresponding to the fixing threaded hole 13 can be arranged on the horizontal rod 5, the adjusting threaded hole 15 being aligned with the fixing threaded hole 13, and the fixing bolt 14 can be screwed into the adjusting threaded hole 15, so that the lifting rod 6 is no longer moved left and right along the horizontal rod 5, and the structure is more stable.

[0023] Before hoisting, the piston of the hollow jack 9 is in the state of upward rising, the bottom end of the hoisting rod 6 is higher than the comb-shaped expansion joint, a plurality of the devices are evenly placed above the comb-shaped expansion joint along the length direction of the comb-shaped expansion joint, then the piston of the hollow jack 9 is moved downward, thereby driving the long screw rod 10 and the hoisting frame to move downward together, when the bending part 7 of the two side hoisting rods 6 is located below the tooth plate of the comb-shaped expansion joint, the piston of the hollow jack 9 stops moving, the two side hoisting rods 6 are respectively slid on the cross rod 5 to make the hoisting rods 6 respectively adhere to the two sides of the tooth plate of the comb-shaped expansion joint, the bending part 7 is located below the tooth plate, then the fixing bolts 14 are tightened to fix the hoisting rods 6 and the cross rod 5 together, then the piston is moved upward, thereby driving the long screw rod 10 and the hoisting frame to move upward together, so that the bending part 7 of the hoisting rod 6 hooks the two sides of the bottom of the tooth plate of the comb-shaped expansion joint, the comb-shaped expansion joint is hoisted, when the anchoring steel plate of the comb-shaped expansion joint is lifted to the designed welding height, the piston stops moving, then the short screw rod 8 is screwed downward, so that the lower end of the short screw rod 8 tightly abuts against the upper surface of the tooth plate of the comb-shaped expansion joint, the comb-shaped expansion joint is not easy to shake. During the above hoisting process, a level meter can be placed on the comb-shaped expansion joint, the piston of each device is adjusted to make the comb-shaped expansion joint as a whole in a horizontal state, and the height position of the anchoring steel plate is controlled by a measuring scale to make it meet the design requirements, so that the installation position of the comb-shaped expansion joint is ensured. The comb-shaped expansion joint is not easy to shake by using the device to hoist the comb-shaped expansion joint, the installation precision of the comb-shaped expansion joint is improved, the trouble of constantly adjusting the welding height during welding is saved, and the construction efficiency and quality are improved.

[0024] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; those skilled in the art should understand that: they can still modify the technical solutions recorded in the above examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A comb tooth expansion joint installation aid characterized by: The utility model provides a kind of lifting device, including support frame (1), the bottom of the support frame (1) is equipped with universal brake wheel (2), and two parallel support rods (3) are equipped in the top surface of the support frame (1) middle, lifting device is installed on the upper surface of support rod (3), and the lifting device has lifting rod, and lifting rod passes through the gap between two support rods (3) downward, and lifting rod lower end is fixed together with hoisting frame;The hoisting frame includes connecting cylinder (4), and the left and right sides of the connecting cylinder are symmetrically fixed crossbar (5), and hoisting rod (6) is slidably arranged on the two crossbars (5), and the lower part of hoisting rod (6) is equipped with upwardly inclined curved portion (7);The connecting cylinder (4) is equipped with internal thread, and short screw rod (8) is threadedly connected to the lower part of the connecting cylinder (4) downward.

2. The comb tooth expansion joint installation aid of claim 1, wherein: The lifting device is hollow jack (9), and the piston center hole of the hollow jack (9) vertically passes through lifting rod, and lifting rod is long screw rod (10), and long screw rod (10) passes through the gap between two support rods (3) downward, and the part of long screw rod (10) above the piston of hollow jack (9) is equipped with nut (11), and long screw rod (10) lower end is fixed together with connecting cylinder (4).

3. The comb tooth expansion joint installation aid of claim 1, wherein: The lifting device is electric screw rod elevator, and the screw rod of the electric screw rod elevator passes through the gap between two support rods (3) downward, and the lower end of screw rod is fixed together with connecting cylinder (4).

4. A comb tooth expansion joint installation aid according to claim 1 or 2 or 3, wherein: The upper part of hoisting rod (6) is equipped with perforation (12), and hoisting rod (6) is arranged on crossbar (5) by perforation (12), and the upper surface of hoisting rod (6) is equipped with fixed threaded hole (13), and fixed threaded hole (13) is communicated with perforation (12) downward, and fixed threaded hole (13) is screwed into fixed bolt (14).

5. The comb tooth expansion joint installation aid of claim 4, wherein: The upper part of hoisting rod (6) is equipped with perforation (12), and hoisting rod (6) is arranged on crossbar (5) by perforation (12), and the upper surface of hoisting rod (6) is equipped with fixed threaded hole (13), and fixed threaded hole (13) is communicated with perforation (12) downward, and fixed threaded hole (13) is screwed into fixed bolt (14).

6. The comb tooth expansion joint installation aid of claim 5, wherein: The support frame (1) is rectangular frame.

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