Slope finding device

Abstract

The utility model relates to the field of building construction tools, in particular to a slope finding device which comprises a troweling plate and a rod, the troweling plate is provided with a cambered surface, the side, where the concave surface is located, of the cambered surface of the troweling plate is connected with the rod, and the concave cambered surface is gradually formed at the ditch bottom by enabling the convex surface to reciprocate at the ditch bottom. A shovel or a plane leveling tool is replaced to conduct slope finding and trowelling operation on a drainage ditch with the ditch bottom being an arc face, when the slope finding and trowelling device is used, the movable rod enables the convex face to reciprocate at the ditch bottom, the slope finding and trowelling operation can be completed, and the operation construction difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the field of construction tools, and particularly relates to a slope finding device. Background Art

[0002] Drainage ditches are generally used to divert surface water or rainwater into sewers, preventing the foundation and subgrade of houses from being soaked by water and seeping, so as to ensure the firmness and durability of houses. The key to ensuring smooth drainage lies in the slope of the drainage ditch. Therefore, slope finding and leveling operations are required during the construction of drainage ditches.

[0003] In the existing technology, when performing slope finding and leveling operations for drainage ditches, manual shovels or leveling tools are required to level the bottom of the drainage ditch. However, this form is only applicable to flat ditches. When performing slope finding and leveling operations for drainage ditches with an arc-shaped bottom and a relatively deep depth, it is not easy to use a shovel or a flat leveling tool to reach the bottom of the ditch for construction, and it is difficult to perform slope finding and leveling for the arc surface. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects in the existing technology that when performing slope finding and leveling operations for drainage ditches with an arc-shaped bottom and a relatively deep depth, it is not easy to use a shovel or a flat leveling tool to reach the bottom of the ditch for construction, and it is difficult to perform slope finding and leveling for the arc surface, and to provide a slope finding device.

[0005] The utility model provides a slope finding device, which includes a leveling plate and a rod. The leveling plate is provided with an arc surface, and one side where the concave surface of the arc surface of the leveling plate is located is connected to the rod.

[0006] By setting the rod and connecting the rod to the leveling plate, the length of the device can be increased. When performing slope finding and leveling operations for relatively deep drainage ditches, the leveling plate is placed at the bottom of the ditch, and the leveling plate is moved by moving the rod, thereby carrying out slope finding and leveling operations on the bottom of the drainage ditch. By providing an arc surface on the flat plate, the side where the convex surface of the arc surface is located is used to contact the bottom of the ditch, and the side where the concave surface of the arc surface is located is used to be connected to the rod. When performing slope finding and leveling operations, the rod is moved to move the leveling plate, so that the convex surface moves on the bottom of the ditch. By making the convex surface reciprocate on the bottom of the ditch, the bottom of the ditch gradually forms a concave arc surface, replacing the use of a shovel or a flat leveling tool to perform slope finding and leveling operations on a drainage ditch with an arc-shaped bottom. When in use, moving the rod makes the convex surface reciprocate on the bottom of the ditch, and the slope finding and leveling operations can be completed, reducing the difficulty of the operation construction.

[0007] The rod can be fixedly connected to the leveling plate or can be detachably connected to the leveling plate.

[0008] The leveling plate can be set as an arc-shaped plate with a cross-section of an arc surface, or can be set as a flat plate, and both ends of the flat plate are arc surfaces.

[0009] The screeding plate is provided with a bracket, the bracket is connected to the screeding plate through a plurality of legs, the rod is connected to the screeding plate through the bracket, the rod is hinged to the bracket, and the surface where the connection between the bracket and the rod is located is a plane.

[0010] When driving the screeding plate to move by moving the rod, the rod exerts a force on the screeding plate through the connection with the screeding plate. By providing the bracket, the bracket is connected to the screeding plate through a plurality of legs, and the force exerted by the rod is dispersed to the screeding plate through the plurality of legs, making the force on the screeding plate more uniform. When the screeding plate levels the working surface, the force exerted on the working surface is more uniform, thereby improving the construction quality; by hinging the rod to the bracket, the rod can rotate around the hinge axis, so that the rod can exert a force on the bracket from different angles. When there are obstacles above the construction working surface, by reducing the angle between the rod and the bracket, the screeding plate can cover a larger area of the working surface, thus improving the flexibility of the device; by setting the surface where the connection between the bracket and the rod is located as a plane, the angle adjustment range between the rod and the bracket can be 0° - 90°, further improving the flexibility of the device.

[0011] The connection between the rod and the bracket is located at the center point of the plane where the connection is located, or the connection between the rod and the bracket can be set at any point on the plane where the connection is located.

[0012] The direction in which the rod is hinged to the bracket can be perpendicular to the moving direction of the device or the same as the moving direction of the device.

[0013] The rod can be connected to the bracket through a hinge.

[0014] Alternatively, by providing the rod with a bolt and the bracket with a pin hole that can cooperate with the bolt, the rod is connected to the bracket through the bolt and the pin hole.

[0015] The pin hole includes a first hole section and a second hole section arranged coaxially. The radial dimension of the first hole section is larger than the radial dimension of the bolt, and the cross section of the bolt and the cross section of the second hole section are regular polygons that match each other, so that the bolt can be clamped in the second hole section.

[0016] By setting the radial dimension of the first hole section to be larger than the radial dimension of the bolt, the bolt can rotate freely around the axis of the bolt within the first hole section. By setting the cross-section of the bolt and the cross-section of the second hole section to be regular polygons that match each other, the bolt can be clamped in the second hole section. Since each side and each interior angle of a regular polygon are equal, when the bolt rotates, the bolt can be clamped in the second hole section at different angles, improving the stability of the rod when working at different angles and reducing the possibility of rotation caused by external forces. At the same time, the cross-section design of the regular polygon can make the force between the bolt and the second hole section more uniform, reduce stress concentration, and improve the durability and reliability of the device.

[0017] When it is necessary to change the angle of the rod, move the bolt from the second hole section to the first hole section, rotate the rod to make the bolt rotate around the axis of the bolt until the rod is adjusted to the desired angle, then move the bolt from the first hole section to the second hole section and make the bolt clamped in the second hole section.

[0018] The cross-section of the bolt and the cross-section of the second hole section are both regular hexagons.

[0019] The cross-section of the bolt and the cross-section of the second hole section can also be set to be squares or regular octagons, etc.

[0020] A chamfer structure is provided at the transition between the first hole section and the second hole section.

[0021] By providing a chamfer structure at the transition between the first hole section and the second hole section, the damage or wear of the pin hole caused by sharp edges and corners is reduced, the stress concentration at the transition between the first hole section and the second hole section is alleviated, and the service life of the device is improved.

[0022] The chamfer structure can be set as a C chamfer or an R chamfer, etc.

[0023] The pin hole is a through hole.

[0024] By setting the pin hole as a through hole, the discharge of debris can be facilitated, the probability of debris getting stuck in the hole can be reduced, and the reliability of the device during use is improved.

[0025] The rod is of a hollow structure, the bolt is slidably connected to the inner wall of the rod, a first limiting portion is provided on the side of the bolt close to the rod, the first limiting portion can abut against the inner wall of the rod to limit the bolt from detaching from the rod, the first limiting portion is connected with a pulling portion, and moving the pulling portion can make the bolt retract or extend out of the rod.

[0026] By setting the rod as a hollow structure and the bolt being slidably connected to the inner wall of the rod, the overall compactness of the device is improved; by providing the first limiting portion, the bolt can be restricted from detaching from the rod, enhancing the reliability of the device; by moving the pulling portion, the bolt can be retracted or extended from the rod. When the bolt is retracted into the rod, the bolt disengages from the pin hole, and when the bolt extends out of the rod, the bolt can be inserted into the pin hole. Through this setting, the rod can be detachably connected to the bracket. Meanwhile, when it is necessary to adjust the angle between the rod and the bracket, the bolt can be disengaged from the pin hole, then the rod can be rotated, and then the bolt can be extended out of the rod and inserted into the pin hole. Through this setting, the convenience of using the device is improved.

[0027] The first limiting portion can be a limiting block or a limiting rod, etc.

[0028] The pulling portion can be set as a pull rod or a pulling rope with an automatic rebound function, etc.

[0029] The rod is provided with two bolts, and the bracket is provided with two pin holes that can cooperate with the bolts. The pulling portion includes a pulling rope and an elastic member. The elastic member is arranged between the two bolts. When the two bolts move in the direction of retracting into the rod, the elastic member can be compressed.

[0030] By providing two bolts and two pin holes that cooperate with the bolts, the reliability of the device is improved; when the pulling rope applies a pulling force to the two bolts, the two bolts move in the direction of retracting into the rod, and the elastic member can be compressed. When the bolts are not subjected to the pulling force applied by the pulling rope, the elastic member has a tendency to elongate, and the elastic member can apply a force to the two bolts, causing the bolts to move in the direction of extending out of the rod, thereby enabling the bolts to be inserted into the pin holes. Through this setting, the convenience of using the device is improved.

[0031] The elastic member can be a spring or an elastic rubber block, etc.

[0032] The inner wall of the rod is provided with a second limiting portion, and the second limiting portion is used to restrict the movement of the elastic member in the axial direction of the elastic member.

[0033] By providing the second limiting portion, the stability of the elastic member during expansion and contraction is improved.

[0034] The second limiting portion can be a limiting sleeve or a limiting baffle.

[0035] Compared with the prior art, the beneficial effects of the present utility model are:

[0036] 1. The utility model provides a slope-finding device. By setting a screeding plate and a rod, the screeding plate is provided with an arc surface, and one side where the concave surface of the arc surface of the screeding plate is located is connected to the rod. By reciprocating the convex surface at the bottom of the groove, a concave arc surface is gradually formed at the bottom of the groove, replacing the use of a shovel or a flat leveling tool to perform slope-finding and leveling operations on a drainage ditch with an arc-shaped bottom. During use, the rod is moved to reciprocate the convex surface at the bottom of the groove, and the slope-finding and leveling operations can be completed, reducing the difficulty of construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a main schematic diagram of the slope-finding device according to Embodiment 1 provided by the utility model.

[0038] Figure 2 It is a partial cross-sectional schematic diagram of the rod according to Embodiment 1 provided by the utility model.

[0039] Figure 3 It is Figure 1 an enlarged schematic diagram of part A in

[0040] Figure 4 It is a cross-sectional schematic diagram of the pin hole according to Embodiment 1 provided by the utility model.

[0041] Figure 5 It is a main schematic diagram of the slope-finding device according to Embodiment 2 provided by the utility model.

[0042] Markings in the figure:

[0043] 1 - screeding plate, 11 - bracket, 2 - rod, 21 - pin, 22 - first limiting part, 23 - second limiting part, 3 - pulling part, 4 - elastic component, 5 - first hole section, 6 - second hole section. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] The following further describes the present utility model in detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. Any technology implemented based on the content of the present utility model belongs to the scope of the present utility model.

[0045] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or positional relationship, such as "upper", "lower", "left", "right", "center", "inner", "outer", etc., are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product / device / equipment of the present utility model is commonly used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0046] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel", etc. appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still perform its function in the solution of the present utility model.

[0047] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0048] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be more than 9.

[0049] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / limited, the places where terms such as "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. This kind of connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements.

[0050] Example 1

[0051] As Figures 1-4 shown, a slope-finding device includes a screed plate 1 and a rod 2. The screed plate 1 is provided with an arc surface, and one side where the concave surface of the arc surface of the screed plate 1 is located is connected to the rod 2.

[0052] By setting the rod 2 and connecting the rod 2 to the screed plate 1, the length of the device can be increased. When performing slope-finding and leveling operations on a relatively deep drainage ditch, the screed plate 1 is placed at the bottom of the ditch, and the screed plate 1 is moved by moving the rod 2, thereby carrying out slope-finding and leveling operations on the bottom of the drainage ditch. By providing an arc surface on the flat plate, the side where the convex surface of the arc surface is located is used to contact the bottom of the ditch, and the side where the concave surface of the arc surface is located is used to connect to the rod 2. When performing slope-finding and leveling operations, the rod 2 is moved to move the screed plate 1, so that the convex surface moves on the bottom of the ditch. By making the convex surface reciprocate on the bottom of the ditch, a concave arc surface is gradually formed on the bottom of the ditch, replacing the use of a shovel or a flat leveling tool to perform slope-finding and leveling operations on a drainage ditch with an arc-shaped bottom. When in use, moving the rod 2 to make the convex surface reciprocate on the bottom of the ditch can complete the slope-finding and leveling operations, reducing the difficulty of the operation construction.

[0053] The rod 2 is detachably connected to the screed plate 1.

[0054] The screed plate 1 is set as a flat plate, and both ends of the flat plate are arc surfaces.

[0055] The screed plate 1 is provided with a bracket 11. The bracket 11 is connected to the screed plate 1 through 4 legs. The rod 2 is connected to the screed plate 1 through the bracket 11. The rod 2 is hinged to the bracket 11, and the surface where the connection between the bracket 11 and the rod 2 is located is a flat surface.

[0056] When driving the screed plate 1 to move by moving the rod 2, the rod 2 exerts a force on the screed plate 1 through the connection with the screed plate 1. By setting the bracket 11, the bracket 11 is connected to the screed plate 1 through 4 legs, and the force exerted by the rod 2 is dispersed to the screed plate 1 through the 4 legs by the bracket 11, making the force on the screed plate 1 more uniform. When the screed plate 1 levels the working surface, the force exerted on the working surface is more uniform, thereby improving the construction quality. By hinging the rod 2 to the bracket 11, the rod 2 can rotate around the hinge axis, so that the rod 2 can exert a force on the bracket 11 from different angles. When there are obstacles above the construction working surface, by reducing the angle between the rod 2 and the bracket 11, the screed plate 1 can cover a larger area of the working surface, thus improving the flexibility of the device in use. By setting the surface where the connection between the bracket 11 and the rod 2 is located as a flat surface, the angle adjustment range between the rod 2 and the bracket 11 can be 0° - 90°, further improving the flexibility of the device in use.

[0057] The connection point between the rod 2 and the bracket 11 is located at the center point of the plane where the connection point is located.

[0058] The direction in which the rod 2 is hinged to the bracket 11 is the same as the direction in which the device moves.

[0059] The rod 2 is provided with a pin 21 , and the bracket 11 is provided with a pin hole that can be used in conjunction with the pin 21 . The rod 2 is connected to the bracket 11 via the pin 21 and the pin hole.

[0060] The pin hole includes a first hole segment 5 and a second hole segment 6 which are coaxially arranged. The radial dimension of the first hole segment 5 is larger than the radial dimension of the pin 21. The cross-section of the pin 21 and the cross-section of the second hole segment 6 are regular hexagons that match each other, so that the pin 21 can be snapped into the second hole segment 6.

[0061] By setting the radial dimension of the first hole segment 5 to be larger than the radial dimension of the pin 21, the pin 21 can rotate arbitrarily around the axis of the pin 21 in the first hole segment 5, and by setting the cross-section of the pin 21 and the cross-section of the second hole segment 6 to be regular hexagons that match each other, the pin 21 can be snapped into the second hole segment 6. Since each side of the regular hexagon is equal and each internal angle is equal, when the pin 21 rotates, the pin 21 can be snapped into the second hole segment 6 at different angles, thereby improving the stability of the rod 2 working at different angles and reducing the possibility of rotation due to external forces. At the same time, the regular hexagonal cross-sectional design can make the pin 21 and the second hole segment 6 more evenly stressed, reduce stress concentration, and improve the durability and reliability of the device.

[0062] When the angle of the rod 2 needs to be changed, the pin 21 is moved from the second hole section 6 to the first hole section 5, and the rod 2 is rotated to rotate the pin 21 around the axis of the pin 21 until the adjustment rod 2 reaches the desired angle, and then the pin 21 is moved from the first hole section 5 to the second hole section 6, and the pin 21 is engaged with the second hole section 6.

[0063] A chamfer structure is provided at the transition between the first hole segment 5 and the second hole segment 6 .

[0064] By providing a chamfer structure at the transition between the first hole segment 5 and the second hole segment 6, damage or wear of the pin hole caused by sharp corners is reduced, stress concentration at the transition between the first hole segment 5 and the second hole segment 6 is alleviated, and the service life of the device is improved.

[0065] The chamfer structure is configured as a C chamfer.

[0066] The pin hole is a through hole.

[0067] By setting the pin hole as a through hole, it is convenient to discharge debris, reduce the probability of debris getting stuck in the hole, and improve the reliability of the device.

[0068] The rod 2 has a hollow structure. The bolt 21 is slidably connected to the inner wall of the rod 2. A first limiting portion 22 is provided on one side of the bolt 21 close to the rod 2. The first limiting portion 22 can abut against the inner wall of the rod 2 to limit the bolt 21 from detaching from the rod 2. The first limiting portion 22 is connected to a pulling portion 3. Moving the pulling portion 3 can make the bolt 21 retract or extend out of the rod 2.

[0069] By setting the rod 2 to have a hollow structure and the bolt 21 to be slidably connected to the inner wall of the rod 2, the overall compactness of the device is improved; by setting the first limiting portion 22 to be able to limit the bolt 21 from detaching from the rod 2, the reliability of the device is improved; by moving the pulling portion 3, the bolt 21 can be made to retract or extend out of the rod 2. When the bolt 21 retracts into the rod 2, the bolt 21 disengages from the pin hole. When the bolt 21 extends out of the rod 2, the bolt 21 can be inserted into the pin hole. Through this setting, the rod 2 is detachably connected to the bracket 11. At the same time, when it is necessary to adjust the angle between the rod 2 and the bracket 11, the bolt 21 can be made to disengage from the pin hole and then the rod 2 can be rotated, and then the bolt 21 is extended out of the rod 2 and the bolt 21 is inserted into the pin hole. Through this setting, the convenience of using the device is improved.

[0070] The first limiting portion 22 is a limiting block.

[0071] The rod 2 is provided with two bolts 21. The bracket 11 is provided with two pin holes that can cooperate with the bolts 21. The pulling portion 3 includes a pulling rope and an elastic member 4. The elastic member 4 is arranged between the two bolts 21. When the two bolts 21 move in the direction of retracting into the rod 2, the elastic member 4 can be compressed.

[0072] By setting two bolts 21 and two pin holes that cooperate with the bolts 21, the reliability of the device is improved; when the pulling rope applies a pulling force to the two bolts 21, the two bolts 21 move in the direction of retracting into the rod 2, and the elastic member 4 can be compressed. When the bolts 21 do not receive the pulling force applied by the pulling rope, the elastic member 4 has a tendency to elongate, and the elastic member 4 can apply a force to the two bolts 21 to make the bolts 21 move in the direction of extending out of the rod 2, so that the bolts 21 can be inserted into the pin holes. Through this setting, the convenience of using the device is improved.

[0073] The elastic member 4 is a spring.

[0074] The inner wall of the rod 2 is provided with a second limiting portion 23 for limiting the elastic member 4 from moving in the axial direction of the elastic member 4.

[0075] By setting the second limiting part 23, the stability of the elastic component 4 during expansion and contraction is improved.

[0076] The second limiting part is a limiting baffle.

[0077] Embodiment 2

[0078] As Figure 5 shown, the difference between this embodiment and Embodiment 1 is that the screed plate 1 is a curved plate with an arc-shaped cross section, and the bracket is connected to the screed plate through 3 legs.

[0079] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A slope finding device, characterized in that: It comprises a trowel plate (1) and a rod (2), wherein the trowel plate (1) is provided with a curved surface, and the side where the curved surface of the trowel plate (1) is located is connected to the rod (2); The trowel plate (1) is provided with a bracket (11), the bracket (11) is connected to the trowel plate (1) via a plurality of legs, the rod (2) is connected to the trowel plate (1) via the bracket (11), the rod (2) is hinged to the bracket (11), and the surface where the bracket (11) and the rod (2) are connected is a plane; The rod (2) is provided with a pin bolt (21), the bracket (11) is provided with a pin hole capable of being used in conjunction with the pin bolt (21), and the rod (2) is connected to the bracket (11) via the pin bolt (21) and the pin hole.

2. A slope finding device according to claim 1, characterized in that: The pin hole comprises a first hole section (5) and a second hole section (6) which are coaxially arranged, the radial dimension of the first hole section (5) being larger than the radial dimension of the pin (21), and the cross section of the pin (21) and the cross section of the second hole section (6) being regular polygons that match each other, so that the pin (21) can be snap-fitted into the second hole section (6).

3. A slope finding device according to claim 2, characterized in that: The cross-section of the pin (21) and the cross-section of the second hole section (6) are both regular hexagons.

4. A slope finding device according to claim 2, characterized in that: A chamfer structure is provided at the transition between the first hole section (5) and the second hole section (6).

5. A slope finding device according to claim 2, characterized in that: The pin hole is a through hole.

6. A slope finding device according to any one of claims 1 to 5, characterized in that: The rod (2) is a hollow structure. The pin (21) is slidably connected to the inner wall of the rod (2). The pin (21) is provided with a first limiting portion (22). The first limiting portion (22) can abut against the inner wall of the rod (2) to limit the pin (21) from being separated from the rod (2). The first limiting portion (22) is connected to a pulling portion (3). Moving the pulling portion (3) can cause the pin (21) to retract or extend from the rod (2).

7. A slope finding device according to claim 6, characterized in that: The rod (2) is provided with two pins (21), the bracket (11) is provided with two pin holes capable of being used in conjunction with the pins (21), the pulling portion (3) comprises a pulling rope and an elastic component (4), the elastic component (4) is arranged between the two pins (21), and when the two pins (21) move in a direction of retracting the rod (2), the elastic component (4) can be compressed.

8. A slope finding device according to claim 7, characterized in that: The inner wall of the rod (2) is provided with a second limiting portion (23), and the second limiting portion (23) is used to limit the movement of the elastic component (4) along the axial direction of the elastic component (4).

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