A concrete line-springing mechanism and its cutting device

Abstract

The present invention provides a concrete line-drawing mechanism and a seam-cutting device thereof, which relate to the technical field of highway bridge construction, and include: a frame, wherein a roller is provided at the bottom end of the frame, an ink cartridge is fixedly provided at the bottom of the frame and an ink line is wound on the ink cartridge; a pulling unit, wherein the pulling unit is vertically movably connected to the frame, and the bottom end of the pulling unit is rotatably connected to a hook portion that can clamp or release the ink line; and a traction unit, wherein the traction unit is laterally movably connected to the frame, the traction unit is fixedly connected to the free end of the ink line, and the traction unit is connected to the pulling unit to drive the pulling unit to move upward. The invention solves the problem in the prior art that manual line-drawing leads to poor quality consistency and is time-consuming and labor-intensive.

Description

Technical Field

[0001] The invention relates to the technical field of highway bridge construction, in particular to a concrete line-drawing mechanism and a seam-cutting device thereof. Background Art

[0002] The expansion joint of a highway bridge is a structure that is deliberately retained when building a highway bridge. It is mainly used to prevent factors such as temperature changes from affecting the safety of the highway bridge. The expansion joint is required to be able to expand and contract freely in both directions parallel and perpendicular to the axis of the bridge, and to be firm and reliable.

[0003] In the prior art, most of the methods involve manually holding an ink cartridge to draw the line before cutting, and then pushing the cutting machine to move along the ink line to ensure that the expansion joint is cut straight. However, there are the following problems:

[0004] First, the hand-held ink cartridge line drawing is completely dependent on the worker's experience and the quality of the line drawing cannot be controlled; second, it is time-consuming and labor-intensive, and the line drawing efficiency is low. Summary of the invention

[0005] In view of the deficiencies in the prior art, the first object of the present invention is to provide a concrete marking mechanism, which solves the problem of poor quality consistency and time-consuming and labor-intensive manual marking in the prior art.

[0006] According to an embodiment of the present invention, a concrete line-springing mechanism includes:

[0007] A frame, wherein a roller is provided at the bottom end of the frame, an ink cartridge is fixedly provided at the bottom of the frame and an ink line is wound around the ink cartridge;

[0008] A drawing unit, wherein the drawing unit is vertically movably connected to the frame, and a hook portion capable of hooking up or releasing the ink line is rotatably connected to the bottom end of the drawing unit;

[0009] And a traction unit, wherein the traction unit is laterally movably connected to the frame, the traction unit is fixedly connected to the free end of the ink line, and the traction unit is connected to the pulling unit to drive the pulling unit to move upward.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the traction unit pulls one end of the ink line out of the ink cartridge to the required length, during which the traction unit drives the pulling unit to move upward so that the hook portion moves upward and gradually hooks up the ink line, and when the hook portion moves upward to a preset height, the hook portion can be driven to swing downward by external force or the elastic force of the ink line, so that the ink line is detached from the hook portion, and at this time, the ink line itself has elastic force and rebounds downward until it contacts the ground, completing a line stretching operation, and the mobile frame can complete the line stretching operation at different positions; therefore, the above scheme can be adopted to ensure consistent quality of line stretching each time and improve work efficiency.

[0011] The second object of the present invention is to provide a concrete cutting device, which solves the problem in the prior art that manual marking is required during concrete cutting operations, resulting in poor quality consistency and time-consuming and labor-intensive operations.

[0012] A concrete cutting device comprises a cutting module and the above-mentioned concrete line-setting mechanism. The cutting module is mounted on the frame and is located at one side of the concrete line-setting mechanism.

[0013] Compared with the prior art, the present invention has the following beneficial effects: since the slitting device is provided with the above-mentioned concrete line-drawing mechanism, it can draw lines more efficiently during slitting operations, and the elastic quality consistency is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0015] Figure 2 for Figure 1 Right view of;

[0016] Figure 3 for Figure 1 A local enlarged view of point A;

[0017] Figure 4 for Figure 3 Right view of;

[0018] Figure 5 Schematic diagram of the structure of the connection module in an embodiment of the present invention.

[0019] In the above drawings: 1, frame; 101, slide; 2, ink cartridge; 3, ink line; 4, hook portion; 5, drive bar; 501, block; 502, handle; 6, body; 7, pin shaft; 8, tension wheel; 9, drive block; 10, cutting module; 11, pressure plate. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figures 1 to 4 As shown, the present invention proposes an embodiment, a concrete line-springing mechanism, comprising:

[0022] The frame 1 includes a support plate, one end of which is fixedly provided with an armrest, and the bottom end of the support plate is provided with a plurality of rollers for movement. In order to maintain the stability of the frame 1 during the line drawing process, the rollers can be conventional universal wheels; an ink cartridge 2 is fixedly provided at the bottom of the frame 1 and an ink line 3 is wound on the ink cartridge 2. A conventional reel and a reset assembly are provided in the ink cartridge 2 to realize the function of the ink cartridge 2 to reel in the ink line 3. An opening is provided at one end of the ink cartridge 2 for the free end of the ink line 3 to pass through. The ink cartridge 2 and the ink line 3 themselves are prior art and will not be described in detail here;

[0023] A drawing unit, the drawing unit is vertically movably connected to the frame 1, and the bottom end of the drawing unit is rotatably connected to a hook portion 4 that can clamp or release the ink line 3;

[0024] And a traction unit, the traction unit is laterally movably connected to the frame 1, the traction unit is fixedly connected to the free end of the ink line 3, and the traction unit is connected to the pulling unit to drive the pulling unit to move upward.

[0025] The traction unit pulls one end of the ink line 3 out of the ink cartridge 2 to the required length. During this process, the traction unit drives the pulling unit to move upward, so that the hook portion 4 moves upward and gradually hooks up the ink line 3. When the hook portion 4 moves upward to a preset height (the preset height is artificially pre-set so that when it reaches this height, the ink line 3 drives the hook portion 4 to swing downward under the drive of the rebound force, which can be determined through experiments in practice), it can be driven to swing by external force or the elastic force of the ink line 3, so that the ink line 3 is detached from the hook portion 4. The ink line 3 itself has elastic force and rebounds downward until it contacts the ground, completing a line stretching operation. The mobile frame 1 can complete the line stretching operations at different positions. Therefore, the above scheme can ensure the consistency of the line stretching quality each time and improve work efficiency.

[0026] like Figures 1 to 4 As shown, the present invention proposes another embodiment, a concrete cutting device, including a cutting module 10, wherein the cutting module 10 includes a motor installed on a support plate and a cutting saw transmission-connected to the motor, and the cutting saw should be able to swing up and down to ensure feeding so as to smoothly cut the concrete pavement. The above-mentioned cutting module 10 itself is a prior art and will not be described in detail here; it also includes the above-mentioned concrete line-setting mechanism, wherein the cutting module 10 is installed on the frame 1 and is located on one side of the concrete line-setting mechanism, wherein the cutting module 10 is located at the end of the frame 1 in the direction of travel.

[0027] By adopting the above scheme, since the concrete cutting device is provided with the above concrete line-springing mechanism, the concrete cutting device can spring the line more efficiently during the cutting operation, and the elastic quality consistency is good.

[0028] like Figures 1 to 4As shown, the present invention proposes another embodiment, the drawing unit comprises:

[0029] The main body 6 has a top end that passes through the frame 1 and the two are in clearance fit so that the main body 6 can slide up and down relative to the frame 1. The main body 6 can be configured in a sheet or rod shape. The bottom of the main body 6 is bent upward to form a bending section. In practice, the relative position between the bottom end of the main body 6 and the ink line 3 can be adjusted by setting the bending size and amplitude of the bending section, so that the hook portion 4 can better hook the ink line 3 and can be smoothly detached as needed. Please refer to Figure 3 and Figure 4 The hook portion 4 is in a "Y"-shaped block, and the opening of the hook portion 4 faces upward to clamp the ink line 3. One end of the hook portion 4 is rotatably connected to the free end of the bending section by a pin shaft 7, and the pin shaft 7 is parallel to the ink line 3. A return module for resetting the hook portion 4 is provided between the hook portion 4 and the bending section. The return module can be a coil spring or a torsion spring sleeved on the pin shaft 7. The two ends of the coil spring or the torsion spring are respectively connected to the hook portion 4 and the bending section. When the external force is removed, the coil spring or the torsion spring keeps the opening of the hook portion 4 facing upward; the main body 6 drives the hook portion 4 to move upward together, and the "Y"-shaped hook portion 4 can limit the ink line 3 located in its opening above the pin shaft 7, so that when the deformation of the middle part of the ink line 3 arching upward reaches a preset degree, the hook portion 4 can be driven to swing downward, so that the ink line 3 and the hook portion 4 are separated from each other.

[0030] like Figure 1 As shown, the present invention proposes another embodiment, the frame 1 is provided with a chute 101 extending laterally and the chute 101 is vertically connected, and the traction unit includes:

[0031] A driving bar 5, wherein the driving bar 5 is laterally movably connected to the slide slot 101 and the bottom end of the driving bar 5 passes downward through the slide slot 101. To facilitate sliding the driving bar 5, one end of the slide slot 101 is open;

[0032] and a connecting module, the connecting module is mounted on the bottom end of the driving strip 5 to fix the free end of the ink line 3, such as Figure 5 As shown, the connecting module in this embodiment is a pressure plate 11, which is threadedly connected to the bottom end of the driving bar 5 by screws, and the free end of the ink line 3 is pressed by the pressure plate 11 in the groove set at the bottom end of the driving bar 5 to prevent the ink line 3 from loosening; of course, the specific implementation method of the connecting module is not limited to the above one, for example, it can also be a reel (not shown in the figure) rotatably connected to the bottom end of the driving bar 5, and one end of the ink line 3 can be glued or fixed to the reel by other existing technologies, and the free end of the ink line 3 can also be fixed; so that the traction unit can smoothly pull the free end of the ink line 3 to move laterally.

[0033] like Figure 1 and Figure 2 As shown, the present invention proposes another embodiment, on the two opposite sides of the driving bar 5, there are fixedly provided with stoppers 501 extending away from each other, and the two stoppers 501 are respectively in contact with the upper and lower end surfaces of the sliding groove 101; the stoppers 501 arranged above limit the upward and downward movement of the driving bar 5, and being distributed on both sides of the driving bar 5 can also make the driving bar 5 be subjected to balanced force to avoid overturning.

[0034] Furthermore, a handle 502 is fixedly provided at the top of the driving bar 5. Figure 2 As shown, the top end of the driving bar 5 is bent transversely to form a handle 502, which is convenient for operators to grasp.

[0035] like Figure 1 As shown, the present invention proposes another embodiment, one side of the drive strip 5 can be fitted with the outer wall of the ink cartridge 2, and when the drive strip 5 is fitted with the outer wall of the ink line 3, the outlet on the ink cartridge 2 for the ink line 3 to pass through can be blocked to prevent dust and gravel from entering the ink cartridge 2; a locking module for preventing the drive strip 5 from separating from the ink cartridge 2 is fixed on the frame 1, and the locking module can be magnets fixed on the opposite sides of the ink cartridge 2 and the drive strip 5, respectively. The magnets attract each other to ensure that the drive strip 5 and the locking module remain in contact, and external force drives the drive strip 5 to move away from the ink cartridge 2 only by overcoming the magnetic force, which facilitates pulling out the ink line 3; the above-mentioned locking module can also be a conventional lock buckle and lock seat, or a pin and a jack, and arranging them on the ink cartridge 2 and the drive strip 5 respectively can also achieve the function of locking the two on demand.

[0036] like Figure 1 As shown, the present invention proposes another embodiment, further comprising a tensioning wheel 8, the tensioning wheel 8 is located directly above the body 6 and on the right side of the ink cartridge 2, and the tensioning wheel 8 is rotatably connected to the frame 1 along the radial direction of the ink line 3 (coaxial with the unwinding axis of the ink line 3);

[0037] And a connecting rope, one end of which is fixedly connected to the top of the main body 6, the other end of which is passed around the tensioning wheel 8 and fixed with a driving block 9, the driving block 9 is laterally slidably connected to the frame 1, and one side of the driving block 9 can be fitted with one side of the driving bar 5 to move unidirectionally along with the driving bar 5.

[0038] By adopting the above scheme, the driving bar 5 slides to the right under the action of external force until one side of the driving bar 5 is in contact with one side of the driving block 9. At this time, the driving bar 5 can push the driving block 9 to move to the right together and then pull the hook portion 4 upward through the connecting rope. When the driving bar 5 moves to the left, the driving bar 5 is out of contact with the driving block 9 (that is, the driving bar 5 can only drive the driving block 9 to move to the right in one direction), and the hook portion 4 and the main body 6 pull the driving block 9 to the left under the action of their own weight; the above arrangement can make the hook portion 4 located in the middle of the ink line 3 to ensure a good elastic line effect, and will not affect the driving bar 5 moving to the left to fit with the ink cartridge 2.

[0039] The working process of the present invention is as follows:

[0040] like Figures 1 to 5 As shown, the worker holds the handrail and moves the device to the concrete road surface where the line needs to be drawn, and then locks the universal wheel. At this time, the worker pushes the handle 502 to the right, and the driving bar 5 pulls the free end of the ink line 3 to move to the right together. When the driving bar 5 moves to the right to fit with one side of the driving block 9, the driving bar 5 drives the driving block 9 to move to the right together, so that the driving block 9 pulls the hook part 4 upward through the connecting rope. During the upward movement of the hook part 4, the middle part of the ink line 3 is hooked upward. Since the ink line 3 is elastic and one end of the hook part 4 is rotatably connected to the body 6, when the hook part 4 moves upward to the preset stroke, the elastic force of the ink line 3 drives the hook part 4 to overcome the elastic force of the coil spring or torsion spring and then swings downward. At this time, the ink line 3 can be detached from the hook. The ink line 3 is ejected downward until it contacts the concrete pavement, leaving a straight line on the pavement, completing the marking operation here; external force drives the driving bar 5 to move leftward until the driving bar 5 fits the outer wall of the ink cartridge 2, thereby retracting the ink line 3 into the ink cartridge 2 and sealing the opening of the ink cartridge 2 to prevent gravel and dust from entering the ink cartridge 2; during the movement of the driving bar 5 to the left, it is disengaged from the driving block 9, and the self-weight of the hook portion 4 and the main body 6 pulls the driving block 9 to move leftward and reset, so that the hook portion 4 can smoothly hook the ink line 3 when it moves upward next time; finally, the worker unlocks the universal wheel, starts the cutting module 10, and holds the handrail to cut the concrete pavement along the ink line 3 to make the cut straight.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A concrete line-springing mechanism, characterized in that: include: A frame (1), wherein a roller is provided at the bottom end of the frame (1), an ink cartridge (2) is fixedly provided at the bottom of the frame (1), and an ink line (3) is wound around the ink cartridge (2); A pulling unit, the pulling unit being vertically movably connected to the frame (1), the bottom end of the pulling unit being rotatably connected to a hook portion (4) capable of hooking up or releasing the ink line (3); and a traction unit, the traction unit being laterally movably connected to the frame (1), the traction unit being fixedly connected to the free end of the ink line (3), and the traction unit being connected to the drawing unit to drive the drawing unit to move upwards; The drawing unit comprises: A main body (6), the top end of the main body (6) passes through the frame (1) and the two are loosely matched, the hook portion (4) is in a "Y"-shaped block shape, the opening of the hook portion (4) faces upwards for clamping the ink line (3), a return module for resetting the hook portion (4) is provided between the hook portion (4) and the main body (6), one end of the hook portion (4) is rotatably connected to the free end of the hook portion (4) via a pin shaft (7), and the pin shaft (7) is parallel to the ink line (3); The frame (1) is provided with a sliding groove (101) extending transversely, and the traction unit comprises: A driving bar (5), the driving bar (5) being laterally movably connected to the slide groove (101) and having a bottom end extending downwardly out of the slide groove (101); and a connection module, the connection module being mounted on the bottom end of the driving bar (5) to fix the free end of the ink line (3); It also comprises: a tension wheel (8), the tension wheel (8) being connected to the frame (1) and rotating along the radial direction of the ink line (3); and a connecting rope, one end of the connecting rope is fixedly connected to the top of the body (6), the other end of the connecting rope passes around the tension wheel (8) and is fixedly provided with a driving block (9), the driving block (9) is laterally slidably connected to the frame (1), and one side of the driving block (9) can be in contact with one side of the driving bar (5) so as to move unidirectionally along with the driving bar (5).

2. A concrete line-drawing mechanism as claimed in claim 1, characterized in that: Stoppers (501) extending away from each other are fixedly provided on opposite sides of the driving bar (5), and the two stoppers (501) are in contact with upper and lower end surfaces of the sliding groove (101) respectively.

3. A concrete line-drawing mechanism as claimed in claim 2, characterized in that: A handle (502) is fixedly provided at the top end of the driving bar (5).

4. A concrete line-drawing mechanism as claimed in claim 1, characterized in that: One side of the driving strip (5) can be fitted with the outer wall of the ink cartridge (2) to close the outlet for the ink line (3) to pass through, and a locking module is fixedly provided on the frame (1) to prevent the driving strip (5) from being separated from the ink cartridge (2).

5. A concrete cutting device, comprising a cutting module (10), characterized in that: It also comprises a concrete line-drawing mechanism as claimed in any one of claims 1 to 4, wherein the cutting module (10) is mounted on the frame (1) and is located on one side of the concrete line-drawing mechanism.

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