Joint cutting device for bridge construction
By designing stable supports and electric equipment for bridge construction, the problem of ground tilt during joint cutting in existing devices was solved, achieving stable positioning and efficient cleaning during bridge construction, thus improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-14
AI Technical Summary
Existing bridge construction joint cutting devices are prone to causing ground tilting when pushing them to make joints, and require manual control of vibration and stability by workers, which affects their effectiveness.
A bridge construction stabilization support was designed, equipped with an electric conveyor belt, a mobile frame, a drive cutting main frame, an electric cylinder, guide rollers, and a ground cleaning frame. The electric cylinder drives the guide rollers to rise and fall, and the locking components and locking screws achieve stable positioning. The ground cleaning frame is equipped to remove impurities and ensure the smoothness of the cutting process.
This ensured stable positioning during bridge construction, reduced loosening, guaranteed smooth cutting operations and effective ground cleaning, and improved construction safety and efficiency.
Smart Images

Figure CN224119413U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bridge construction joint cutting device, belonging to the field of bridge construction technology. Background Technology
[0002] Roads and bridges generally consist of several major parts, including roadbed, pavement, bridge, tunnel engineering, and traffic engineering facilities. During the construction of roads and bridges, it is necessary to cut joints in the pavement. Expansion joints are structures that are deliberately preserved when building highway bridges. They are mainly used to prevent factors such as temperature changes from affecting the safety of highway bridges and to avoid pavement cracking caused by thermal expansion and contraction.
[0003] For example, a bridge construction joint cutting device with patent number CN202420019989.X includes a base plate and a joint cutting mechanism. The joint cutting mechanism includes a joint cutting machine, a lifting plate, four rollers, two sets of connecting components, a moving component, two sets of support components, two sets of auxiliary components, and a pushing component. Each set of connecting components includes a hinge block, a support rod, and a moving block. The four rollers are respectively fixedly connected to the lower surface of the base plate. The lifting plate is set on the upper surface of the base plate. The joint cutting machine is fixedly connected to one side of the lifting plate. The two sets of connecting components are symmetrically arranged on the bottom surface of the lifting plate. The hinge block is fixedly connected to the base plate. One end of the support rod is hinged to the hinge block, and the other end of the support rod is hinged to the moving block. The moving component is set on the upper surface of the base plate. The two sets of support components are symmetrically arranged on both sides of the lifting plate.
[0004] Since the aforementioned bridge construction joint cutting device is designed for push-type joint cutting, the push-type joint cutting can cause the ground to tilt. This requires workers to control the vibration and stability of the device during operation, which has certain adverse effects on actual use. Therefore, improvements are needed. Utility Model Content
[0005] The purpose of this invention is to provide a bridge construction joint cutting device. This invention is equipped with a bridge construction stabilizing support that can be driven and positioned, and performs joint cutting within the driving and guiding area of the bridge construction stabilizing support. It also includes a ground cleaning frame to pre-treat impurities on the bridge, ensuring a smooth joint cutting effect during bridge construction, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A bridge construction joint cutting device includes a bridge construction stabilizing support. An electric conveyor belt is fixedly installed on the left side of the bridge construction stabilizing support. A movable frame is fixedly installed on the surface of the conveyor belt. A locking component is connected to the bottom of the movable frame. A drive cutting main frame is connected to the surface of the locking component. An electric cylinder is fixedly installed on the top of the drive cutting main frame. A drive cutting blade is fixedly installed at the output end of the electric cylinder. An outer sleeve is fixedly installed on the bottom of the drive cutting main frame near its right side. An inner sleeve rod is sleeved on the inner wall of the outer sleeve. Locking screw grooves are opened on the surface of the inner sleeve rod and the surface of the outer sleeve. Locking screws are threadedly connected to the corresponding locking screw grooves on the surface of the inner sleeve rod and the outer sleeve. A rolling seat is fixedly connected to the bottom of the inner sleeve rod. A ground cleaning frame is fixedly installed on the surface of the rolling seat.
[0008] Furthermore, the main body of the bridge construction stabilizing support is arch-shaped, and a groove is provided inside the bridge construction stabilizing support. An electric cylinder is fixedly installed on the top of the inner wall of the groove, and a guide roller is fixedly installed on the output end of the electric cylinder.
[0009] Furthermore, the bottom of the bridge construction stabilizing support is fixedly connected with a shock-absorbing pad, and the lower surface of the shock-absorbing pad is coated with a wear-resistant coating.
[0010] Furthermore, the locking assembly includes a locking plate and a locking sleeve. The locking plate is fixedly connected to the bottom of the movable frame, and the locking sleeve is fixedly connected to the top of the drive cutting main frame. The inner wall of the locking sleeve and the surface of the locking plate are engaged and adapted to each other, and both the interior of the locking sleeve and the interior of the locking plate are threaded with positioning screws through internal thread grooves.
[0011] Furthermore, a water tank with an inlet pipe is fixedly installed on the surface of the drive cutting frame via a bracket, and a swing spray gun with a drive end is fixedly installed at the bottom of the water tank.
[0012] Furthermore, the inner sleeve rod has at least six locking screw grooves, and at least two of the locking screw grooves are connected to the inner sleeve rod in a vertical direction.
[0013] Furthermore, the top of the ground cleaning frame is an anti-vibration frame, and an electric telescopic rod is fixedly installed inside the anti-vibration frame. An inclined push plate is fixedly installed at the bottom of the electric telescopic rod, and a cleaning groove is opened at the bottom of the inclined push plate. A cleaning brush is fixedly installed on the inner wall of the cleaning groove.
[0014] The beneficial effects of this utility model are:
[0015] 1. In this utility model, a bridge construction stabilizing support is set as the base support, and a groove is set inside the bridge construction stabilizing support. The operation of electric cylinder two in the groove can drive the guide roller to rise and fall, so that the bridge construction stabilizing support can be combined with other equipment for position translation and guidance. When it is necessary to perform bridge construction cutting operation in a single area, the operation of electric cylinder two can retract the guide roller into the bridge construction stabilizing support. With the action of the shock-absorbing pad, the loosening of the bridge construction stabilizing support after positioning is reduced.
[0016] 2. In this utility model, the electric conveyor belt on the bridge construction stabilizing support can drive the moving frame on it to move. The electric cylinder on the main cutting frame drives the cutting blade downward to drive the ground for cutting. The main cutting frame can be disassembled and replaced through the locking sleeve and locking plate. The positioning screw on it can be unlocked and locked to switch the positioning state. The water inlet pipe connected to the water tank can supply water. The swing spray gun with the driven adjustment angle sprays water to remove impurities and dust. During the movement of the main cutting frame, the ground cleaning frame can be used to push away impurities. The cleaning brush in the ground cleaning frame can assist in cleaning impurities. The inclined push plate can be adjusted in height according to the electric telescopic rod. The main cutting frame and the rolling seat are connected by the inner sleeve rod and the outer sleeve. The locking screw in the corresponding locking screw groove completes the locking treatment, which completes the support ground movement height of the rolling seat and ensures the stable positioning and anti-tilting cutting effect during the bridge construction process. Attached Figure Description
[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.
[0018] Figure 1 This is a schematic diagram of the overall structure of a bridge construction joint cutting device according to this utility model;
[0019] Figure 2 This is a schematic diagram of the movable frame in a bridge construction joint cutting device according to this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the rolling seat in a bridge construction joint cutting device according to this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the guide roller in a bridge construction joint cutting device according to this utility model;
[0022] Figure 5 This is an enlarged view of point A of a bridge construction joint cutting device according to this utility model;
[0023] Numbered in the diagram: 1. Bridge construction stabilizing support; 2. Electric conveyor belt; 3. Mobile frame; 4. Drive cutting main frame; 5. Electric cylinder one; 6. Drive cutting blade; 7. Outer sleeve; 8. Inner sleeve rod; 9. Locking screw groove; 10. Locking screw; 11. Rolling seat; 12. Ground cleaning frame; 13. Electric cylinder two; 14. Guide roller; 15. Shock-absorbing pad; 16. Locking plate; 17. Locking sleeve; 18. Water tank; 19. Swinging spray gun; 20. Electric telescopic rod; 21. Inclined push plate; 22. Cleaning brush. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please refer to Example 1 Figures 1-5 This utility model provides a technical solution:
[0026] A bridge construction joint cutting device includes a bridge construction stabilizing support 1. An electric conveyor belt 2 is fixedly installed on the left side of the bridge construction stabilizing support 1. A movable frame 3 is fixedly installed on the surface of the conveyor belt 2. A locking component is connected to the bottom of the movable frame 3. A drive cutting main frame 4 is connected to the surface of the locking component. An electric cylinder 5 is fixedly installed on the top of the drive cutting main frame 4. A drive cutting blade 6 is fixedly installed at the output end of the electric cylinder 5. An outer sleeve 7 is fixedly installed on the bottom of the drive cutting main frame 4 near its right side. An inner sleeve rod 8 is sleeved on the inner wall of the outer sleeve 7. Locking screw grooves 9 are opened on the surface of the inner sleeve rod 8 and the surface of the outer sleeve 7. Locking screws 10 are threadedly connected to the corresponding locking screw grooves 9 on the surface of the inner sleeve rod 8 and the surface of the outer sleeve 7. A rolling seat 11 is fixedly connected to the bottom of the inner sleeve rod 8. A ground cleaning frame 12 is fixedly installed on the surface of the rolling seat 11.
[0027] Specifically, such as Figures 1-5As shown, the main body of the bridge construction stabilization support 1 is arch-shaped. A groove is formed inside the support 1, and an electric cylinder 13 is fixedly installed on the top of the inner wall of the groove. A guide roller 14 is fixedly installed at the output end of the electric cylinder 13. The operation of the electric cylinder 13 drives the guide roller 14 to rise and fall, allowing the bridge construction stabilization support 1 to be moved and guided in conjunction with other equipment. A shock-absorbing pad 15 is fixedly connected to the bottom of the bridge construction stabilization support 1. The lower surface of the shock-absorbing pad 15 is coated with a wear-resistant coating. The shock-absorbing pad 15 reduces the possibility of the bridge construction stabilization support 1 becoming loose after positioning.
[0028] Furthermore, the inner sleeve rod 8 has at least six locking screw grooves 9, and at least two of the locking screw grooves 9 are connected to the inner sleeve rod 8 in the vertical direction, which can realize the height adjustment of the corresponding locking screw grooves 9 on the inner sleeve rod 8 and the height determination is completed by using the locking screw 10.
[0029] Specifically, such as Figures 1-5 As shown, the locking assembly includes a locking plate 16 and a locking sleeve 17. The locking plate 16 is fixedly connected to the bottom of the movable frame 3, and the locking sleeve 17 is fixedly connected to the top of the drive cutting main frame 4. The inner wall of the locking sleeve 17 and the surface of the locking plate 16 are engaged and adapted. Both the interior of the locking sleeve 17 and the interior of the locking plate 16 are threaded with positioning screws through internal thread grooves. Through the engagement relationship between the locking sleeve 17 and the locking plate 16, the drive cutting main frame 4 can be disassembled and replaced, and the positioning screws on it can be threaded to unlock and lock to switch positioning states.
[0030] Please refer to Example 2 Figures 1-5 The difference between this embodiment and embodiment 1 is that: a water tank 18 with a water inlet pipe is fixedly installed on the surface of the drive cutting main frame 4 by a bracket, and a swing spray gun 19 with a drive end is fixedly installed at the bottom of the water tank 18. The water inlet pipe connected to the water tank 18 can supply water, and water is sprayed by the swing spray gun 19 with the angle adjusted by the drive to remove impurities and dust.
[0031] Furthermore, the top of the ground cleaning frame 12 is an anti-vibration frame, and an electric telescopic rod 20 is fixedly installed inside the anti-vibration frame. An inclined push plate 21 is fixedly installed at the bottom of the electric telescopic rod 20. A cleaning groove is opened at the bottom of the inclined push plate 21, and a cleaning brush 22 is fixedly installed on the inner wall of the cleaning groove. The cleaning brush 22 in the ground cleaning frame 12 can assist in cleaning impurities, and the inclined push plate 21 can be adjusted in height according to the electric telescopic rod 20.
[0032] The working principle of this utility model is as follows: A bridge construction stabilizing support 1 is set as the base support, and a groove is provided inside the bridge construction stabilizing support 1. The operation of electric cylinder 13 within the groove drives the guide roller 14 to rise and fall, allowing the bridge construction stabilizing support 1 to be moved and guided in conjunction with other equipment. When a single area of bridge construction cutting is required, the operation of electric cylinder 13 can retract the guide roller 14 into the bridge construction stabilizing support 1. With the action of the shock-absorbing pad 15, the loosening of the bridge construction stabilizing support 1 after positioning is reduced. The operation of the electric conveyor belt 2 drives the moving frame 3 on it to move, driving the electric cylinder 5 on the cutting main frame 4 to drive the cutting blade 6 downwards for ground cutting. The locking sleeve 17 and locking plate 16 are used for locking. The snap-fit connection allows for easy disassembly and replacement of the drive cutting main frame 4, and the positioning screw on it can be unlocked and locked to switch the positioning state. The water inlet pipe connected to the water tank 18 can supply water, and the swing spray gun 19, which is driven to adjust the angle, sprays water to remove impurities and dust. During the movement of the drive cutting main frame 4, the ground cleaning frame 12 can be used to push away impurities, and the cleaning brush 22 in the ground cleaning frame 12 can assist in cleaning impurities. The inclined push plate 21 can be height adjusted according to the electric telescopic rod 20. The drive cutting main frame 4 and the rolling seat 11 are connected by the inner sleeve rod 8 and the outer sleeve 7, and the locking screw 10 in the corresponding locking screw groove 9 completes the locking treatment, completing the support ground movement height of the rolling seat 11, ensuring the stable positioning and anti-tilting area cutting treatment effect during bridge construction.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bridge construction joint cutting device, comprising a bridge construction stabilizing support (1), characterized in that: An electric conveyor belt (2) is fixedly installed on the left side of the bridge construction stabilizing support (1). A movable frame (3) is fixedly installed on the surface of the conveyor belt on the electric conveyor belt (2). A locking component is connected to the bottom of the movable frame (3). A drive cutting main frame (4) is connected to the surface of the locking component. An electric cylinder (5) is fixedly installed on the top of the drive cutting main frame (4). A drive cutting blade (6) is fixedly installed at the output end of the electric cylinder (5). The drive cutting main frame (4) is located near... An outer sleeve (7) is fixedly installed at the bottom right side. An inner sleeve rod (8) is sleeved on the inner wall of the outer sleeve (7). Locking screw grooves (9) are opened on the surface of the inner sleeve rod (8) and the surface of the outer sleeve (7). Locking screws (10) are threadedly connected to the corresponding locking screw grooves (9) on the surface of the inner sleeve rod (8) and the surface of the outer sleeve (7). A rolling seat (11) is fixedly connected to the bottom of the inner sleeve rod (8). A ground cleaning frame (12) is fixedly installed on the surface of the rolling seat (11).
2. The bridge construction joint cutting device according to claim 1, characterized in that: The main body of the bridge construction stabilizing support (1) is arch-shaped. The inside of the bridge construction stabilizing support (1) is provided with a groove. An electric cylinder (13) is fixedly installed on the top of the inner wall of the groove. A guide roller (14) is fixedly installed on the output end of the electric cylinder (13).
3. A bridge construction joint cutting device according to claim 2, characterized in that: The bottom of the bridge construction stabilizing support (1) is fixedly connected to a shock-absorbing pad (15), and the lower surface of the shock-absorbing pad (15) is coated with a wear-resistant coating.
4. A bridge construction joint cutting device according to claim 1, characterized in that: The locking assembly includes a locking plate (16) and a locking sleeve (17). The locking plate (16) is fixedly connected to the bottom of the movable frame (3), and the locking sleeve (17) is fixedly connected to the top of the drive cutting main frame (4). The inner wall of the locking sleeve (17) and the surface of the locking plate (16) are engaged and adapted. The interior of the locking sleeve (17) and the interior of the locking plate (16) are both threaded with positioning screws through internal thread grooves.
5. A bridge construction joint cutting device according to claim 1, characterized in that: The surface of the drive cutting main frame (4) is fixedly mounted with a water tank (18) with a water inlet pipe by a bracket, and the bottom of the water tank (18) is fixedly mounted with a swing spray gun (19) with a drive end.
6. A bridge construction joint cutting device according to claim 1, characterized in that: The inner sleeve rod (8) has at least six locking screw grooves (9), and at least two of the locking screw grooves (9) are connected to the inner sleeve rod (8) in the vertical direction.
7. A bridge construction joint cutting device according to claim 1, characterized in that: The top of the ground cleaning frame (12) is an anti-vibration frame, and an electric telescopic rod (20) is fixedly installed inside the anti-vibration frame. An inclined push plate (21) is fixedly installed at the bottom of the electric telescopic rod (20). A cleaning groove is opened at the bottom of the inclined push plate (21), and a cleaning brush (22) is fixedly installed on the inner wall of the cleaning groove.
Citation Information
Patent Citations
Joint cutting device for bridge construction
CN221523264U