A ramped cementitious lining panel expansion joint cutting device

Abstract

The application is a kind of slope cement lining plate expansion joint cutting device, which belongs to the field of expansion joint cutting equipment. The cutting device is slidably arranged on a guide rail. A second limiting plate is arranged on one side of the guide rail along the length direction. The second limiting plate is arranged higher than the bottom end surface of the guide rail. The cutting device comprises a rack, a cutting assembly arranged on the rack, a first limiting plate arranged on the side of the rack and protruding from the side, and the first limiting plate extends into the lower part of the second limiting plate. By arranging the guide rail and the second limiting plate on the guide rail, the purpose of straight walking and straight cutting is easily achieved, the bending degree of the cutting joint is reduced, the first limiting plate is connected to the rack, the purpose of preventing side turning is achieved by inserting the first limiting plate into the lower part of the second limiting plate, the cutting safety is improved, the linear roller and the driving member are arranged to realize automatic walking of the whole cutting device, manual participation is reduced, and the safety of manual work is ensured.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint cutting, and in particular to a device for cutting expansion joints in sloping cement lining slabs. Background Technology

[0002] In the construction of slopes in water conservancy projects, cement lining is a common structure with advantages such as simple construction, high strength, and good durability. Although the lining slab has many advantages, it is prone to cracking due to thermal expansion and contraction. Therefore, construction workers will cut expansion joints after construction to solve this problem. Currently, expansion joints are mainly cut using hand-push cutting equipment. This method is difficult to control in a straight line during cutting, especially when processing transverse expansion joints on steep slopes. It is easy to deviate from the line, and manual intervention can cause the cutting machine to jam or jump out of the cutting groove due to lateral force, causing the entire cutting machine to roll out of control. In severe cases, it can also cause the operator to fall, resulting in a safety accident. Existing technologies also include mechanical cutting machines, such as the expansion joint cutting device disclosed in patent CN221501683U, which is equipped with a cutting component and a guiding component (similar to a guide rail). The guiding component guides the cutting process and avoids problems such as uneven cutting and bending of the expansion joint after cutting. Although the above-mentioned patented technology can achieve straight cutting, if the above-mentioned cutting device is used to cut on a steep slope, it is also prone to tipping over. Utility Model Content

[0003] Manually operated cutting equipment requires manual intervention and is prone to tipping accidents, posing a high risk. Although the cutting equipment in the aforementioned patented technology cuts relatively straight lines, it is also prone to tipping over when cutting on steep slopes. This application designs a cutting device for expansion joints of cement lining slabs on slopes, and the technical solution adopted is as follows:

[0004] A cutting device for expansion joints of sloping cement lining slabs, slidably mounted on a guide rail, with a second limiting plate provided on one side of the guide rail along its length, the second limiting plate being positioned above the bottom end face of the guide rail. The cutting device includes:

[0005] frame,

[0006] Cutting assembly, the cutting assembly is mounted on the frame;

[0007] The first limiting plate is located on the side of the frame and protrudes from the side. The first limiting plate extends below the second limiting plate.

[0008] Preferably, a counterweight is detachably provided on one side of the frame.

[0009] Preferably, the counterweight includes a connecting rod extending to one side of the frame, and the counterweight is a counterweight stone, which is fixed to the connecting rod by a fixing rope.

[0010] Preferred options also include:

[0011] The wire roller is rotatably mounted on the frame.

[0012] A drive unit is mounted on the frame and connected to the wire roller.

[0013] The traction rope has one end fixed to the roller and the other end wound around the roller to form a fixed end.

[0014] Preferably, there are two guide rails, which are arranged in parallel and spaced apart. Multiple connecting plates are perpendicularly connected between the two guide rails, and the multiple connecting plates are spaced apart along the length of the guide rails.

[0015] Preferably, the cross-sectional shape of each connecting plate is inverted V-shaped, and the lower surface of the inverted V-shaped connecting plate is connected with a rubber pad by bolts. Each guide rail is provided with a slot corresponding to the position of the connecting plate, and the cross-sectional shape of the slot matches the cross-sectional shape of the connecting plate.

[0016] Preferably, a pull rope is detachably connected to one side of the guide rail, with the end of the pull rope being a fixed end away from the guide rail.

[0017] Preferably, multiple pull ropes are provided, and the multiple pull ropes are spaced apart along the length of the guide rail.

[0018] Preferably, the guide rail includes at least two guide rails, wherein one of the two adjacent guide rails has a cavity at one end and the other guide rail has a connector at one end, and the connector is inserted into the cavity to connect the two adjacent guide rails.

[0019] This utility model, through its technical solution, has the following technical effects:

[0020] ① By setting a guide rail and a second limiting plate on the guide rail, it is easy to achieve the purpose of straight walking and straight cutting, reducing the curvature of the cutting seam. At the same time, the first limiting plate is connected to the frame, and the first limiting plate is inserted under the second limiting plate to achieve the purpose of preventing tipping and improving cutting safety.

[0021] ② By setting rollers and drive components on the frame, the entire cutting device can move automatically, reducing manual intervention and ensuring human safety even in the event of an accident.

[0022] ③ By setting counterweights, the stability of the cutting device can be improved, thus preventing the possibility of the cutting device tipping over from the root. Attached Figure Description

[0023] Figure 1 This is a diagram showing the state of the expansion joint cutting device as it moves along the guide rail.

[0024] Figure 2This is a 3D diagram of an expansion joint cutting device;

[0025] Figure 3 This is a diagram showing the connection structure between the guide rail and the connecting plate;

[0026] Figure 4 This is a diagram showing the connection status when the guide rail is inserted.

[0027] In the diagram, 1 is the guide rail, 101 is the guide rail, 102 is the connector, 103 is the insertion cavity, 2 is the connecting plate, 3 is the second limiting plate, 4 is the frame, 5 is the cutting assembly, 6 is the first limiting plate, 7 is the counterweight, 701 is the connecting rod, 702 is the fixing rope, 8 is the pull rope, 9 is the wire roller, 10 is the motor, 11 is the traction rope, 12 is the slot, and 13 is the rubber pad. Detailed Implementation

[0028] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0029] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] like Figure 1-3As shown, a cutting device for expansion joints in sloping cement lining slabs is slidably mounted on a guide rail 1. The cross-section of the guide rail 1 is a right-angled isosceles triangle, with the right angle facing upwards. The guide wheel of the frame 4 has a concave right-angled surface on its circumference. The guide wheel can not only travel on the guide rail 1 but also be engaged with it from the side, thus preventing the guide wheel from detaching from the guide rail 1 and ensuring the stability of the cutting device. A second limiting plate 3 is provided on one side of the guide rail 1 along its length. The expansion joint cutting device includes a frame 4 with four guide wheels at the bottom. A cutting assembly 5 is mounted on the frame 4. The cutting assembly 5 is a conventional structure of existing cutting machinery, including a motor 10 and a cutting blade. The cutting blade is vertically mounted on one side of the frame 4 and is used to cut the expansion joint. A first limiting plate 6 is also provided on the frame 4. The first limiting plate 6 is located on the side of the frame 4 and extends out of that side. The first limiting plate 6 extends below the second limiting plate 3. The first limiting plate 6 extending out of the side of the frame 4 includes the case where the first limiting plate 6 is provided on one side of the frame 4 and the case where the first limiting plate 6 is provided on both sides of the frame 4. When the first limiting plate 6 is provided on one side of the frame 4, it is mainly used for transverse cutting of expansion joints. When the first limiting plate 6 is provided on both sides of the frame 4, it can be used for both transverse and longitudinal cutting of expansion joints. When the cutting device is about to tip over, the first limiting plate 6 and the second limiting plate 3 abut against each other, thereby preventing the cutting device from tipping over and reducing the risk of tipping over and rolling.

[0031] Furthermore, to improve the balance of the entire cutting device when cutting transverse expansion joints, a counterweight 7 is detachably installed on one side of the frame 4. When cutting expansion joints transversely on the cement lining, the side with the counterweight 7 is positioned higher, thus improving the overall balance of the cutting device. When cutting expansion joints longitudinally on the cement lining, the counterweight 7 is removed to ensure balance on both sides.

[0032] Furthermore, the specific form of the aforementioned counterweight 7 is as follows: it includes a connecting rod 701 extending to one side of the frame 4. The counterweight 7 is a counterweight stone (the attached diagram shows the state after the counterweight stone has been removed, so it is not shown). The counterweight stone is fixed to the connecting rod 701 by a fixing rope 702. This connection method makes it easy to remove and connect the counterweight 7. Moreover, the counterweight 7 uses a counterweight stone, which is inexpensive and can be used and disposed of easily, making it easily replaceable. When it is necessary to cut a longitudinal expansion joint, the counterweight stone can be removed to ensure left and right balance.

[0033] Furthermore, the device also includes a wire roller 9, a traction rope 11, and a drive unit. The wire roller 9 is rotatably mounted on the frame 4. One end of the traction rope 11 is fixed to the wire roller 9. The shaft of the wire roller 9 is connected to the drive unit, which can be a motor 10 or a motor. The other end of the rope is wound around the wire roller 9 to form a fixed end. This fixed end can be fixed to the edge of the cement lining during actual cutting. When cutting longitudinal expansion joints, the fixed end is fixed to the upper edge of the cement lining; when cutting transverse expansion joints, the fixed end is fixed to the left and right edges of the cement lining. The traction rope 11 and the wire roller 9 enable the cutting device to move automatically without human intervention, thus ensuring human safety even in the event of an accident.

[0034] Furthermore, the aforementioned guide rail 1 is configured as two rails, which are arranged in parallel and spaced apart. Multiple connecting plates 2 are vertically connected between the two guide rails 1. The multiple connecting plates 2 are spaced apart along the length of the guide rail 1. The connecting plates 2 are fixed to the cement lining and are in direct contact with the cement lining.

[0035] Furthermore, the cross-sectional shape of each connecting plate 2 is an inverted V-shape. A rubber pad 13 is bolted to the lower surface of the inverted V-shaped connecting plate 2, providing wear resistance, vibration damping, and anti-slip properties. Each guide rail 1 has a corresponding slot 12 at the position of the connecting plate 2. The cross-sectional shape of the slot 12 matches the cross-sectional shape of the connecting plate 2. This connection method allows the guide rail 1 to be directly placed within the slot 12. The slot 12, to a certain extent, limits the movement of the guide rail 1, improving its fixation and stability, and reducing its movement. Simultaneously, this connection method allows for quick separation of the connecting plate 2 from the guide rail 1, and the connecting plate 2 can be quickly replaced if damaged.

[0036] Furthermore, a pull rope 8 is detachably connected to one side of the guide rail 1. The end of the pull rope 8 away from the guide rail 1 is a fixed end. When cutting the transverse expansion joint, the fixed end of the pull rope 8 is fixed to the upper edge of the cement lining plate, which can reduce the downward movement of the guide rail 1 due to the slope. When cutting the longitudinal expansion joint, the pull rope 8 can be removed.

[0037] Furthermore, in order to ensure that the guide rail 1 is subjected to uniform force, multiple pull ropes 8 are provided, and the multiple pull ropes 8 are spaced apart along the length direction of the guide rail 1.

[0038] Furthermore, each of the above-mentioned guide rails 1 includes at least two guide rails 101, wherein one of the two adjacent guide rails 101 has a cavity 103 at one end, and the other guide rail 101 has a connector 102 at one end. The connector 102 is inserted into the cavity 103 to connect the two adjacent guide rails 101. The above structure can be freely spliced ​​to adjust the length of the guide rails 1 as needed, ensuring the usable length and connectivity of the guide rails 1. Moreover, the above structure can be quickly spliced, reducing operation time.

[0039] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0040] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A cutting device for expansion joints of sloping cement lining slabs, slidably mounted on a guide rail, wherein a second limiting plate is provided on one side of the guide rail along its length, the second limiting plate being positioned above the bottom end face of the guide rail, characterized in that... The cutting device includes: frame, A cutting assembly, the cutting assembly being disposed on the frame; A first limiting plate is disposed on the side of the frame and protrudes from the side, and the first limiting plate extends below the second limiting plate.

2. The expansion joint cutting device for sloping cement lining slabs according to claim 1, characterized in that, A counterweight is detachably installed on one side of the frame.

3. The expansion joint cutting device for sloping cement lining slabs according to claim 2, characterized in that, The counterweight includes a connecting rod extending from one side of the frame, and the counterweight is a counterweight stone, which is fixed to the connecting rod by a fixing rope.

4. The expansion joint cutting device for sloping cement lining slabs according to claim 1, characterized in that, Also includes: A wire roller, which is rotatably mounted on the frame; A driving component, which is disposed on the frame and connected to the wire roller; The traction rope has one end fixed to the roller and the other end wound around the roller to form a fixed end.

5. The expansion joint cutting device for sloping cement lining slabs according to claim 1, characterized in that, The guide rails are configured as two parallel rails spaced apart, and multiple connecting plates are perpendicularly connected between the two rails. The multiple connecting plates are spaced apart along the length of the guide rails.

6. The expansion joint cutting device for sloping cement lining slabs according to claim 5, characterized in that, Each of the connecting plates has an inverted V-shaped cross-section. The lower surface of the inverted V-shaped connecting plate is connected to a rubber pad by bolts. Each of the guide rails has a slot corresponding to the position of the connecting plate. The cross-sectional shape of the slot matches the cross-sectional shape of the connecting plate.

7. A slope cement lining slab expansion joint cutting device according to claim 1, 5, or 6, characterized in that, A pull rope is detachably connected to one side of the guide rail, and the end of the pull rope away from the guide rail is a fixed end.

8. The expansion joint cutting device for sloping cement lining slabs according to claim 7, characterized in that, Multiple pull ropes are provided, and the multiple pull ropes are spaced apart along the length direction of the guide rail.

9. The expansion joint cutting device for sloping cement lining slabs according to claim 1, characterized in that, The guide rail includes at least two guide rails, wherein one of the two adjacent guide rails has a cavity at one end and the other guide rail has a connector at one end, and the connector is inserted into the cavity to connect the two adjacent guide rails.

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