Counter-force supporting and adjusting device for mounting fabricated bridge pier cap

Abstract

The utility model discloses a counter-force support adjusting device for mounting an assembly type bridge pier cap, which belongs to the technical field of bridge construction devices and comprises symmetrically mounted lower bases, upper bases are respectively arranged on the two lower bases, and a plurality of hydraulic cylinders are uniformly arranged between the upper bases and the lower bases. The upper bases are fixedly connected with the corresponding lower bases, the two upper bases are fixedly connected, steel wire ropes are installed at the two ends of one lower base respectively, penetrating sleeves are installed at the two ends of the other lower base, the penetrating sleeves correspond to the steel wire ropes, the steel wire ropes penetrate through the penetrating sleeves and are in sliding fit with the penetrating sleeves, and fasteners are installed on the lower bases provided with the penetrating sleeves. The two steel wire ropes are matched with the fastening pieces respectively, the penetrating sleeve is provided with the fixing pieces used for fixing the positions of the penetrating sleeve and the steel wire ropes, and simple operation, single-person operation and stable connection can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction devices, and more specifically, to a reaction force support adjustment device for the installation of prefabricated bridge pier caps. Background Art

[0002] Chinese Patent Application No. CN202020626431.X discloses a reaction force support adjustment device for the installation of prefabricated bridge pier caps, which includes a lower steel member main body, an upper steel member main body, and a jack. The lower steel member main body is of a semi-circular structure, and there are two lower steel member main bodies. End reinforcement connecting plates are respectively arranged at both ends of the lower steel member main body. The end reinforcement connecting plates of the two lower steel member main bodies are connected by stress rods. The two lower steel member main bodies are installed on the constructed bridge pier in a hoop manner; the upper steel member main body is of a semi-circular structure, and there are two upper steel member main bodies. The two upper steel member main bodies are fixedly connected by an upper steel member connecting plate; several groups of jacks are supported between the lower steel member main body and the upper steel member main body. The structure of the utility model is simple and compact, and the manufacturing cost is low.

[0003] When the above solution is implemented, the two ends of the two lower steel structures are connected by two stress rods. Since the two lower steel structures are symmetrically arranged, the two stress rods need to move simultaneously during installation. Otherwise, if one end is installed too long, an included angle will be generated at the other end, resulting in the jamming of the other stress rod. Moreover, this device needs to be installed on a relatively high bridge pier, and it is very difficult to ensure synchronous operation when two people operate at the same time. The actual operation is difficult, and the cooperation between two people is rather troublesome. In view of the above problems, a solution is proposed below. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a reaction force support adjustment device for the installation of prefabricated bridge pier caps, which can achieve simple operation, single-person operation, and stable connection.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] An anti-force support adjustment device for the installation of a prefabricated bridge pier cap, including symmetrically installed lower bases, upper bases are respectively arranged on the two lower bases, a number of hydraulic cylinders are evenly arranged between the upper bases and the lower bases, the upper bases and the corresponding lower bases are fixedly connected, and the two upper bases are fixedly connected. Steel wires are respectively installed at both ends of one of the lower bases, and a sleeve is installed at both ends of the other lower base. The sleeve corresponds to the steel wire, and the steel wire passes through the sleeve and is slidably matched with the sleeve. A fastener is installed on the lower base where the sleeve is installed, and the two steel wires are respectively matched with the fastener. A fixing member for fixing the positions of the sleeve and the steel wire is installed on the sleeve.

[0007] Preferably, the fastener includes a winding wheel, a ratchet wheel, a ratchet pawl and an elastic piece. The ratchet wheel is rotatably arranged on the side of the lower base. The ratchet pawl is located on one side of the ratchet wheel and meshes with the ratchet wheel. The ratchet pawl is hinged to the corresponding lower base. The elastic piece is located on one side of the ratchet pawl, and both ends of the elastic piece cooperate with the ratchet pawl and the lower base respectively. There are two winding wheels, and the two winding wheels are stacked on one side of the ratchet wheel in sequence. One ends of the two steel wires are respectively fixedly connected to the outer arc surfaces of the two winding wheels.

[0008] Preferably, the fixing member includes a pressing plate and a locking bolt. The pressing plate is located inside the sleeve and is slidably matched. The steel wire contacts the pressing plate. The locking bolt passes through the side of the sliding sleeve and is threadedly matched with the sliding sleeve. One end of the locking bolt is rotatably matched with the side of the pressing plate.

[0009] Preferably, the two upper bases are fixedly connected to each other and to the corresponding upper and lower bases through fixing bolts and matching nuts.

[0010] Preferably, a protective shell is arranged outside the fastener.

[0011] Preferably, one end of the fastener is fixedly connected with a rotating rod, and a through hole is formed in the rotating rod.

[0012] Preferably, a notch for placing the steel wire is formed in the winding wheel.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] First, in this solution, two symmetric lower bases are clamped on the top of the pier column. By pulling the steel wire, the distance between the two lower bases can be fixed. At the same time, the fastener can pull the two steel wires to move synchronously, avoiding asymmetry after fixing on both sides, and can be operated by a single person. The operation is simple. The fixing member can fix the positions of the steel wire and the sleeve, so as to ensure the position between the two lower bases is fixed, avoiding fixing the two upper bases after the lower bases are installed.

[0015] II. The wire rope is wound onto the take-up wheels by rotating the two take-up wheels, thereby shortening the position between the two lower bases. When the two take-up wheels rotate, they will drive the ratchet wheel to rotate. The ratchet wheel will be limited by the pawl, so that the ratchet wheel can only rotate in one direction, that is, to prevent the wire rope from falling off the take-up wheel and ensure the position between the two lower bases. The elastic piece can ensure that the pawl always fits with the ratchet wheel, ensuring the stable operation of the ratchet wheel.

[0016] III. By rotating the locking bolt, which is in threaded fit with the sleeve, relative movement will occur between the locking bolt and the sleeve. At the same time, the locking bolt will drive the pressing plate to move, and the wire rope is clamped and fixed by the pressing plate and the inner surface of the sleeve, preventing the movement of the wire rope and ensuring stability.

[0017] IV. The cooperation of the fixing bolt and the nut is adopted, which is convenient to use, simple to install, and the parts are conventional and easy to replace, reducing costs.

[0018] V. The protective shell can protect the fasteners from external damage, extend the service life, and at the same time can prevent the fasteners from being directly exposed to cause harm to the user, improving safety.

[0019] VI. The inside of the insertion opening is convenient for inserting the force application rod, thereby extending the force application arm and reducing the force applied to drive the rotating rod. The rotating rod drives the take-up wheel to rotate.

[0020] VII. The notch serves to place the wire rope, preventing the wire rope from falling off the surface of the take-up wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0022] Figure 2 is a front view structural diagram of the present utility model;

[0023] Figure 3 is an enlarged structural diagram of A of the present utility model;

[0024] Figure 4 is a sectional view of the fastener of the present utility model viewed from above;

[0025] Figure 5 is a sectional view of the fastener of the present utility model viewed from the front;

[0026] Figure 6 is a sectional view of the fixing part of the present utility model.

[0027] Description of the reference numerals in the drawings:

[0028] 1. Lower base; 2. Upper base; 3. Hydraulic cylinder; 4. Steel wire rope; 5. Sleeve; 6. Fastener; 7. Fixed part; 8. Winding wheel; 9. Ratchet; 10. Pawl; 11. Elastic piece; 12. Pressure plate; 13. Locking bolt; 14. Fixed bolt; 15. Nut; 16. Protective shell; 17. Rotating rod; 18. Through hole; 19. Notch; 20. Pier column. Specific implementation mode

[0029] Example 1:

[0030] Please refer to Figures 1-6 , a reaction force support adjustment device for the installation of an assembled bridge pier cap, including symmetrically installed lower bases 1. The cross-section of the base is in an inverted L shape, which is convenient for installation on the top of the pier column 20 to ensure stability. Steel wire ropes 4 are respectively installed at both ends of one of the lower bases 1, and a fastener 6 is installed on the other lower base 1. The two steel wire ropes 4 are respectively matched with the fastener 6.

[0031] Two symmetric lower bases 1 are used to clamp the top of the pier column 20. The symmetric design can be conveniently arranged on the top of the pier column 20. By pulling the steel wire rope 4, the distance between the two lower bases 1 can be fixed. At the same time, the fastener 6 can pull the two steel wire ropes 4 to move synchronously, avoiding asymmetry after fixing on both sides, and can be operated by one person, with simple operation.

[0032] The fastener 6 includes a winding wheel 8, a ratchet 9, a pawl 10 and an elastic piece 11. The ratchet 9 is rotatably arranged on the side of the lower base 1. The pawl 10 is located on one side of the ratchet 9 and meshes with the ratchet 9. The pawl 10 is hinged to the corresponding lower base 1. The elastic piece 11 is located on one side of the pawl 10, and both ends of the elastic piece 11 cooperate with the pawl 10 and the lower base 1 respectively. There are two winding wheels 8, and the two winding wheels 8 are superposed on one side of the ratchet 9 in sequence. One ends of the two steel wire ropes 4 are respectively fixedly connected to the outer arc surfaces of the two winding wheels 8. A notch 19 for placing the steel wire rope 4 is provided on the winding wheel 8, and the notch 19 plays a role in placing the steel wire rope 4 to prevent the steel wire rope 4 from falling off the surface of the winding wheel 8.

[0033] By rotating the two winding wheels 8, the steel wire rope 4 is wound around the winding wheel 8, thereby shortening the position between the two lower bases 1. When the two winding wheels 8 rotate, the ratchet 9 will be driven to rotate. The ratchet 9 will be limited by the pawl 10, so that the ratchet 9 can only rotate in one direction, that is, to prevent the steel wire rope 4 from falling out of the winding wheel 8 and ensure the position between the two lower bases 1. The elastic piece 11 can ensure that the pawl 10 is always in contact with the ratchet 9 to ensure the stable operation of the ratchet 9.

[0034] At both ends of the lower base 1 installed with the fastener 6, there are installed through sleeves 5. The through sleeves 5 correspond to the steel wire ropes 4, and the steel wire ropes 4 pass through the through sleeves 5 and are in sliding fit with the through sleeves 5. A fixing member 7 for fixing the positions of the through sleeves 5 and the steel wire ropes 4 is installed on the through sleeves 5. The fixing member 7 can fix the positions of the steel wire ropes 4 and the through sleeves 5, so as to ensure the fixed position between the two lower bases 1 and avoid fixing the two upper bases 2 after the lower bases 1 are installed.

[0035] The fixing member 7 includes a pressing plate 12 and a locking bolt 13. The pressing plate 12 is located inside the through sleeve 5 and is in sliding fit. The steel wire rope 4 is in contact with the pressing plate 12. The locking bolt 13 passes through the side surface of the sliding sleeve and is in threaded fit with the sliding sleeve. One end of the locking bolt 13 is in rotational fit with the side surface of the pressing plate 12. By rotating the locking bolt 13, the locking bolt 13 is in threaded fit with the through sleeve 5, and the locking bolt 13 will move relative to the through sleeve 5. At the same time, the locking bolt 13 will drive the pressing plate 12 to move. The steel wire rope 4 is clamped and fixed by the pressing plate 12 and the inner surface of the through sleeve 5, avoiding the movement of the steel wire rope 4 and ensuring stability.

[0036] Upper bases 2 are respectively arranged on the two lower bases 1. A number of hydraulic cylinders 3 are evenly arranged between the upper bases 2 and the lower bases 1. The upper bases 2 and the corresponding lower bases 1 are fixedly connected. The two upper bases 2 are fixedly connected. Both between the two upper bases 2 and between the corresponding upper bases 2 and lower bases 1 are fixedly connected by fixing bolts 14 and matching nuts 15. The cooperation of the fixing bolts 14 and the nuts 15 is convenient to use, simple to install, and the parts are conventional and easy to replace, reducing costs.

[0037] This solution also includes that a protective shell 16 is arranged outside the fastener 6. The protective shell 16 can protect the fastener 6, avoid external damage to it, extend the service life, and at the same time can avoid the harm to the user caused by the direct exposure of the fastener 6 outside, improving safety. One end of the fastener 6 is fixedly connected with a rotating rod 17. The rotating rod 17 passes through the protective shell 16, and the rotating rod 17 is in rotational fit with the protective shell 16. A through hole 18 is opened on one side of the rotating rod 17 located outside the protective shell 16. The inside of the through hole 18 is convenient for inserting a force-applying rod, so as to extend the force-applying arm and reduce the force required to drive the rotating rod 17. The rotating rotating rod 17 drives the winding wheel 8 to rotate.

[0038] Working principle:

[0039] During use, first symmetrically place the two lower bases 1 on the top of the pier column 20. Pass the force-applying rod through the through-hole 18, and drive the rotating rod 17 to rotate through the force-applying rod. The rotating rod 17 will drive the winding wheel 8 to rotate, so that the winding wheel 8 will wind the steel wire rope 4 inside the notch 19, thereby shortening the distance between the two lower bases 1. At the same time, the two steel wire ropes 4 are pulled to move synchronously, avoiding asymmetry after being fixed on both sides, and single-person operation can be realized, with simple operation. At the same time, the winding wheel 8 will drive the ratchet wheel 9 to rotate, and the ratchet wheel 9 will cooperate with the pawl 10. Thus, through the restriction of the pawl 10, the ratchet wheel 9 can only rotate in one direction, ensuring the stability between the two lower bases 1. The elastic piece 11 can ensure that the pawl 10 always fits with the ratchet wheel 9, ensuring the stable operation of the ratchet wheel 9.

[0040] When rotating the locking bolt 13, the locking bolt 13 is in threaded fit with the sleeve 5. Relative movement will occur between the locking bolt 13 and the sleeve 5. At the same time, the locking bolt 13 will drive the pressing plate 12 to move, and the steel wire rope 4 is clamped and fixed by the pressing plate 12 and the inner surface of the sleeve 5, avoiding the movement of the steel wire rope 4 and further playing a fixing role.

[0041] Then connect the two upper bases 2 through the corresponding fixing bolts 14 and the corresponding nuts 15 to complete all installations. By connecting the two lower bases 1, the positions between the two upper bases 2 can be determined, making it more convenient to connect through the fixing bolts 14 and nuts 15, and no angle will be generated. At the same time, the fixation between the upper base 2 and the corresponding lower base 1 can form a whole, ensuring the stability of subsequent connections.

Claims

1. A reaction force support adjustment device for installing an assembled bridge pier cap, characterized in that: The invention comprises a symmetrically installed lower base (1), wherein an upper base (2) is respectively arranged on the two lower bases (1), a plurality of hydraulic cylinders (3) are evenly arranged between the upper base (2) and the lower base (1), the upper base (2) and the corresponding lower base (1) are fixedly connected, the two upper bases (2) are fixedly connected, a steel wire rope (4) is respectively installed at both ends of one of the lower bases (1), a sleeve (5) is installed at both ends of the other lower base (1), the sleeve (5) and the steel wire rope (4) correspond to each other, and the steel wire rope (4) passes through the sleeve (5) and slidably cooperates with the sleeve (5), a fastener (6) is installed on the lower base (1) on which the sleeve (5) is installed, the two steel wire ropes (4) respectively cooperate with the fastener (6), and a fixing member (7) for fixing the position of the sleeve (5) and the steel wire rope (4) is installed on the sleeve (5).

2. The reaction force support adjustment device for installing an assembled bridge pier cap according to claim 1, characterized in that: The fastener (6) comprises a winding wheel (8), a ratchet (9), a pawl (10) and an elastic sheet (11); the ratchet (9) is rotatably arranged on the side of the lower base (1); the pawl (10) is located on one side of the ratchet (9) and meshes with the ratchet (9); the pawl (10) is hinged to the corresponding lower base (1); the elastic sheet (11) is located on one side of the pawl (10), and the two ends of the elastic sheet (11) respectively cooperate with the pawl (10) and the lower base (1); two winding wheels (8) are provided, and the two winding wheels (8) are sequentially superimposed on one side of the ratchet (9); one end of the two steel wire ropes (4) is respectively fixedly connected to the outer arc surface of the two winding wheels (8).

3. The reaction force support adjustment device for installing a prefabricated bridge pier cap according to claim 1, characterized in that: The fixing member (7) comprises a pressing plate (12) and a locking bolt (13); the pressing plate (12) is located inside the sleeve (5) and is slidably fitted therein; the steel wire rope (4) and the pressing plate (12) are in contact with each other; the locking bolt (13) passes through the side of the sleeve and is threadably fitted therein; one end of the locking bolt (13) is rotationally fitted thereinto the side of the pressing plate (12).

4. The reaction force support adjustment device for installing an assembled bridge pier cap according to claim 1, characterized in that: The two upper bases (2) and the corresponding upper base (2) and lower base (1) are fixedly connected via fixing bolts (14) and matching nuts (15).

5. The reaction force support adjustment device for installing an assembled bridge pier cap according to claim 1, characterized in that: A protective shell (16) is arranged outside the fastener (6).

6. The reaction force support adjustment device for installing an assembled bridge pier cap according to claim 1, characterized in that: One end of the fastener (6) is fixedly connected to a rotating rod (17), and a through hole (18) is formed on the rotating rod (17).

7. The reaction force support adjustment device for installing an assembled bridge pier cap according to claim 2, characterized in that: The reel (8) is provided with a notch (19) for placing the steel wire rope (4).

Images