Bridge expansion joint cutting device

Abstract

The utility model discloses a bridge expansion joint cutting device which comprises a movable cover used for bearing, a mounting sleeve arranged on the inner side of the front end of the movable cover and a water retaining cover fixed to the upper side of the right end of the movable cover. A handrail is fixedly connected to the upper side of the left outer end of the movable cover, and a controller and a laser head are embedded in the inner side of the left upper end and the inner side of the right lower end of the movable cover correspondingly; an adjustable cutting structure is arranged in the movable cover and comprises an electric telescopic rod, a mounting sleeve, a motor, a limiting plate, a cutting blade, a depth sensor and a limiting plate. According to the bridge expansion joint cutting device, movement of the device is conveniently guided, deflection of a cut bridge expansion joint is avoided, expansion joint cutting is conveniently conducted on a bridge, the depth of the cut expansion joint is conveniently controlled, spraying is convenient, a cutting blade is cooled, dust generated by cutting is reduced, and part of parts are conveniently detached, replaced and maintained; and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion joint cutting, in particular to a bridge expansion joint cutting device. Background Technique

[0002] Due to the fact that bridge building components are prone to cracks or damage in their structures due to climate temperature changes, a horizontally expandable expansion joint is often set at an appropriate position in the direction of the construction joint of the building or structure to prevent the phenomenon of cracks or damage in the building components. During the setting of the expansion joint, a cutting device is required to cut the joint.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN215887908U discloses a bridge construction expansion joint cutting device, which includes a housing. The bottom surface of the housing is fixedly connected with rollers. The inner bottom wall of the housing is penetrated and provided with a first avoidance hole. The bottom surface of the housing is fixedly connected with a height adjustment mechanism. The inner wall of the housing is fixedly connected with a transmission mechanism. The inner bottom wall of the housing is fixedly connected with a dust cleaning mechanism. The inner bottom wall of the housing is fixedly connected with a dust reduction and sprinkling mechanism. Through the dust reduction and sprinkling mechanism of the utility model, the piston is used to pump clear water from the water tank and spray it near the saw blade, reducing the temperature of the saw blade and avoiding damage to the saw blade due to excessive temperature leading to reduced strength. At the same time, the clear water will fall on the bridge and wet the surface of the bridge before the saw blade cuts the bridge, avoiding dust flying everywhere during cutting. Through the dust cleaning mechanism, the brush can be driven to rotate when the motor rotates, gathering the chips and powder cut by the saw blade together, facilitating the cleaning by the staff.

[0004] However, for the existing bridge expansion joint cutting devices, during use, it is generally not convenient to guide the movement of the device. The cut bridge expansion joints are prone to being skewed. It is not convenient to control the depth of the cut expansion joints, and it is not convenient to spray for temperature reduction and dust reduction. Therefore, we propose a bridge expansion joint cutting device to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a bridge expansion joint cutting device to solve the problems in the existing bridge expansion joint cutting devices during use, which are generally not convenient to guide the movement of the device, the cut bridge expansion joints are prone to being skewed, it is not convenient to control the depth of the cut expansion joints, and it is not convenient to spray for temperature reduction and dust reduction as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A bridge expansion joint cutting device, including: a moving cover for bearing, an installation sleeve arranged inside the front end of the moving cover, and a water retaining cover fixedly arranged on the upper side of the right end of the moving cover;

[0007] It further includes:

[0008] On the upper side of the left outer end of the movable cover, there is a fixed connection with a handrail, and a controller and a laser head are respectively inlaid and installed on the inner side of the upper left end and the inner side of the lower right end of the movable cover;

[0009] An adjustable cutting structure is arranged inside the movable cover. The adjustable cutting structure includes an electric telescopic rod, a mounting sleeve, a motor, a limiting plate, a cutting blade, a depth sensor and a restricting plate, and the electric telescopic rod is fixed between the movable cover and the mounting sleeve;

[0010] A temperature reduction and dust reduction structure is arranged at the upper right rear end of the movable cover. The temperature reduction and dust reduction structure includes a water baffle, a water pump, a water pipe, a fixing plate and a spray head, and a water pump fixed to the movable cover by screws is arranged on the left side of the water baffle.

[0011] Preferably, the laser head is located at the lower right of the middle of the cutting blade, and a movable plate rotatably connected to the movable cover by damping is arranged at the rear side of the cutting blade.

[0012] Preferably, a motor is nested and installed inside the mounting sleeve, symmetrical limiting plates are arranged in a fitting manner at the rear side of the motor, and the limiting plates are fixedly connected to the mounting sleeve by screws. Moreover, the rear side of the motor is connected to the cutting blade through a coupling.

[0013] Preferably, the lower end of the cutting blade protrudes from the lower surface of the mounting sleeve, a depth sensor is inlaid and installed inside the lower end of the mounting sleeve, symmetrical restricting plates are snap-connected inside the left and right ends of the mounting sleeve, and the upper ends of the restricting plates are fixedly connected to the movable cover.

[0014] Preferably, water pipes are threadedly connected to the right end and the rear end of the water pump, and the outer ends of the individual water pipes are threadedly connected to the water baffle and the movable cover in a communicating manner.

[0015] Preferably, a fixing plate fixedly connected to the movable cover is arranged below the rear of the water pump, a plurality of spray heads are threadedly connected to the inner side of the front lower end of the fixing plate, and the spray heads are arranged obliquely towards the cutting blade.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: For this bridge expansion joint cutting device, it is convenient to guide the movement of the device, avoid the skew of the cut bridge expansion joint, facilitate the cutting of the bridge expansion joint, facilitate the control of the cutting depth of the expansion joint, facilitate spraying, cool the cutting blade, reduce the dust generated by cutting, and facilitate the disassembly and replacement of some parts for maintenance, so that it has a long service life;

[0017] 1. It is provided with a movable cover, a handrail, a laser head and a cutting blade. Since the upper side of the left end of the movable cover is fixedly connected with the handrail, and the laser head is inlaid and installed inside the lower right end of the movable cover, and the laser head is located right below the middle of the cutting blade, it is convenient to guide the movement of the device and avoid the skew of the bridge expansion joint during cutting;

[0018] 2. It is provided with an electric telescopic rod, a mounting sleeve, a motor and a cutting blade. Since the lower side of the upper front end of the movable cover is fixedly installed with an electric telescopic rod, the electric telescopic rod is fixedly connected with a mounting sleeve with a motor nested inside. The motor is connected to the cutting blade through a coupling, and a depth sensor is inlaid and installed inside the lower end of the mounting sleeve. The left and right inner ends of the mounting sleeve are snap-connected with a limiting plate fixed to the movable cover. Therefore, it is convenient to cut the expansion joint of the bridge and control the depth of the cut expansion joint;

[0019] 3. It is provided with a motor, a limiting plate, a cutting blade and a water pump. Since the motor is nested inside the mounting sleeve, a limiting plate fixed to the mounting sleeve by screws is attached to the back of the motor. The cutting blade is connected to the motor through a coupling, and the water pump is fixed to the movable cover by screws. The inner side of the lower rear end of the movable cover is rotationally connected with a movable plate in a damping manner. Therefore, it is convenient to disassemble and replace some parts for repair and maintenance, making its service life long;

[0020] 4. It is provided with a water shielding cover, a water pump, a water pipe and a fixing plate. Since the water pump is fixed to the upper side of the middle of the movable cover by screws, the water pump is connected to the water shielding cover and the movable cover through a water pipe, and a fixing plate is fixedly connected to the inner side of the upper rear end of the movable cover. The inner side of the lower front end of the fixing plate is threadedly connected with a nozzle inclined towards the cutting blade. Therefore, it is convenient to spray, cool the cutting blade and reduce the dust generated during cutting. Description of the Drawings

[0021] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0022] Figure 2 It is a side view sectional structure schematic diagram of the present utility model;

[0023] Figure 3 It is a front view three-dimensional structure schematic diagram of the connection between the limiting plate and the mounting sleeve of the present utility model;

[0024] Figure 4 It is a front view sectional structure schematic diagram of the connection between the depth sensor and the mounting sleeve of the present utility model;

[0025] Figure 5 It is a side view three-dimensional structure schematic diagram of the connection between the nozzle and the fixing plate of the present utility model.

[0026] In the figure: 1. Moving cover; 2. Handrail; 3. Controller; 4. Laser head; 5. Electric telescopic rod; 6. Mounting sleeve; 7. Motor; 8. Limit plate; 9. Cutting blade; 10. Depth sensor; 11. Water baffle; 12. Water pump; 13. Water pipe; 14. Fixed plate; 15. Nozzle; 16. Movable plate; 17. Restricting plate. Specific embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-5 , the present invention provides a technical solution: a bridge expansion joint cutting device, including a moving cover 1, a handrail 2, a controller 3, a laser head 4, an electric telescopic rod 5, a mounting sleeve 6, a motor 7, a limit plate 8, a cutting blade 9, a depth sensor 10, a water baffle 11, a water pump 12, a water pipe 13, a fixed plate 14, a nozzle 15, a movable plate 16 and a restricting plate 17. The mounting sleeve 6 is arranged inside the front end of the moving cover 1, and the water baffle 11 is fixed on the upper side of the right end of the moving cover 1. The handrail 2 is fixedly connected to the upper side of the left outer end of the moving cover 1, and the controller 3 and the laser head 4 are respectively inlaid and installed inside the upper left end and the lower right end of the moving cover 1. An adjustable cutting structure is arranged inside the moving cover 1, and the adjustable cutting structure includes an electric telescopic rod 5, a mounting sleeve 6, a motor 7, a limit plate 8, a cutting blade 9, a depth sensor 10 and a restricting plate 17. The electric telescopic rod 5 is fixed between the moving cover 1 and the mounting sleeve 6. A temperature reduction and dust reduction structure is arranged at the upper right rear end of the moving cover 1, and the temperature reduction and dust reduction structure includes a water baffle 11, a water pump 12, a water pipe 13, a fixed plate 14 and a nozzle 15. The water pump 12 fixed to the moving cover 1 by screws is arranged on the left side of the water baffle 11. Specific embodiment one

[0029] In order to solve the problems in the prior art that it is not convenient to guide the movement of the device and the cut bridge expansion joint is skewed, therefore, this embodiment adopts the following technical solutions, such as Figure 1, first, the operator can hold the handrail 2 fixedly connected to the upper side of the left end of the moving cover 1 and move the device to the position to be cut at the bridge expansion joint. Then, the operator can control the laser head 4 embedded and installed inside the lower right end of the moving cover 1 through the controller 3 embedded and installed inside the upper left end of the moving cover 1 to emit laser. Since the laser head 4 is located at the lower right of the middle of the cutting blade 9 and is inclined downward to the right, it is convenient for the laser emitted by the laser head 4 to guide the operator to move the device, thus facilitating the avoidance of the skew of the bridge expansion joint cut later. Specific Embodiment 2

[0030] In order to solve the problem that it is not convenient to control the depth of the cut expansion joint in the prior art, this embodiment adopts the following technical solutions, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 , when cutting is required, the operator can control the electric telescopic rod 5 fixedly installed on the lower side of the upper front end of the moving cover 1 and the motor 7 nested and installed inside the mounting sleeve 6 to operate through the controller 3. Since the electric telescopic rod 5 is fixedly connected to the lower part of the mounting sleeve 6, the left and right inner ends of the mounting sleeve 6 are snap-connected to the limiting plate 17 fixed to the moving cover 1, and a limiting plate 8 that fits the motor 7 is fixed to the mounting sleeve 6 by screws at the back. The motor 7 is connected to the cutting blade 9 through a coupling at the back. Therefore, through the operation of the electric telescopic rod 5, it is convenient for the mounting sleeve 6 to descend under the snap-limitation of the limiting plate 17. Through the operation of the motor 7, it is convenient for the cutting blade 9 to rotate. Thus, it is convenient for the cutting blade 9 to descend while rotating to cut the expansion joint of the bridge. During the cutting process, the operator can control the depth sensor 10 embedded and installed inside the lower end of the mounting sleeve 6 to operate to sense the position of the mounting sleeve 6, so as to facilitate the control of the operation of the electric telescopic rod 5 through the controller 3 to achieve the purpose of controlling the depth of the cut expansion joint. Specific Embodiment 3

[0031] In order to solve the problem that it is not convenient to spray for cooling and dust reduction in the prior art, this embodiment adopts the following technical solutions, such as Figure 1 , Figure 2 , Figure 3 and Figure 5, during the cutting process, the water pump 12 fixedly installed by screws on the upper side of the middle part of the moving cover 1 can be controlled by the controller 3 to operate. Since the right end of the water pump 12 is threadedly connected to a water pipe 13 communicating with the water baffle 11, and the rear end of the water pump 12 is threadedly connected to a water pipe 13 communicating with the moving cover 1, and a fixing plate 14 fixedly connected to the moving cover 1 is provided at the lower rear end of the water pump 12, and a spray head 15 inclined towards the cutting blade 9 is threadedly connected to the inner side of the front lower end of the fixing plate 14. Therefore, through the operation of the water pump 12, it is convenient to pass the water in the water baffle 11 through the water pipe 13 to the inner sides of the moving cover 1 and the fixing plate 14, and then spray it out through the spray head 15, so as to achieve the purpose of spraying and cooling the cutting blade 9 and spraying and dust suppressing the dust generated by cutting;

[0032] And after the device has been used for a long time, the screw fixation between the water pump 12 and the moving cover 1 can be disconnected, and the water pump 12 can be disassembled from the moving cover 1 for replacement and repair. The movable plate 16 damping-connected to the inner side of the lower rear end of the moving cover 1 can be rotated to disconnect the shielding of the movable plate 16, so as to disconnect the connection between the cutting blade 9 and the motor 7 through the coupling for replacing the cutting blade 9. And the screw fixation between the mounting sleeve 6 and the limiting plate 8 fittingly arranged behind it can be disconnected, so as to take out the motor 7 from the mounting sleeve 6 for replacement and repair. Thus, it is convenient to disassemble and replace some parts in the device, making its service life long. All the electrical components included above are of the prior art and will not be described in detail here.

[0033] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art. This will not be described in detail here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0034] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A bridge expansion joint cutting device, comprising: A movable cover (1) for carrying a load, a mounting sleeve (6) arranged on the inner side of the front end of the movable cover (1), and a water retaining cover (11) fixed on the upper side of the right end of the movable cover (1); It is characterized by further comprising: The upper left side of the outer end of the movable cover (1) is fixedly connected to a handrail (2), and the inner left side of the upper end and the inner right side of the lower end of the movable cover (1) are respectively inlaid with a controller (3) and a laser head (4); An adjustable cutting structure is arranged in the movable cover (1), wherein the adjustable cutting structure comprises an electric telescopic rod (5), a mounting sleeve (6), a motor (7), a limit plate (8), a cutting blade (9), a depth sensor (10) and a limit plate (17), and the electric telescopic rod (5) is fixed between the movable cover (1) and the mounting sleeve (6); A cooling and dust reduction structure is arranged at the upper right rear end of the movable cover (1), wherein the cooling and dust reduction structure comprises a water shield (11), a water pump (12), a water pipe (13), a fixing plate (14) and a nozzle (15), and a water pump (12) fixed to the movable cover (1) with screws is arranged on the left side of the water shield (11).

2. A bridge expansion joint cutting device according to claim 1, characterized in that: The laser head (4) is located at the lower right middle portion of the cutting blade (9), and a movable plate (16) connected to the movable cover (1) for damping rotation is provided on the rear side of the cutting blade (9).

3. A bridge expansion joint cutting device according to claim 1, characterized in that: The motor (7) is nested and installed in the installation sleeve (6), and a symmetrical limiting plate (8) is provided on the rear side of the motor (7), and the limiting plate (8) and the installation sleeve (6) are fixedly connected by screws, and a cutting blade (9) is connected to the rear side of the motor (7) via a coupling.

4. A bridge expansion joint cutting device according to claim 1, characterized in that: The lower end of the cutting blade (9) protrudes from the lower surface of the mounting sleeve (6), and a depth sensor (10) is embedded and installed on the inner side of the lower end of the mounting sleeve (6), and symmetrical limiting plates (17) are snap-fitted and connected to the inner sides of the left and right ends of the mounting sleeve (6), and the upper end of the limiting plate (17) is fixedly connected to the movable cover (1).

5. The bridge expansion joint cutting device according to claim 1, characterized in that: The right end and the rear end of the water pump (12) are both threadedly connected to a water pipe (13), and the outer ends of the water pipe (13) are respectively threadedly connected to the water shield (11) and the movable shield (1).

6. A bridge expansion joint cutting device according to claim 1, characterized in that: A fixing plate (14) fixedly connected to the movable cover (1) is arranged at the lower rear of the water pump (12), and a plurality of nozzles (15) are threadedly connected to the inner side of the front lower end of the fixing plate (14), and the nozzles (15) are arranged to be inclined toward the cutting blade (9).

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