A size measuring device for highway landscape design

Abstract

The utility model relates to road landscape measurement technical field, and disclose a size measuring ware for road landscape design is formed including wheel hub, rotation axis, mechanical counter, mounting plate, telescopic push rod, handle and fixed sleeve etc.

Description

Technical Field

[0001] This utility model relates to the field of highway landscape measurement technology, and in particular to a dimension measuring instrument for highway landscape design. Background Technology

[0002] Highway landscaping is a comprehensive design that combines functionality, safety, and ecological aesthetics. Its core is to integrate the highway into its surrounding environment while satisfying driving visual comfort and regional cultural expression. The layout of highway landscaping requires careful design to facilitate better integration of the highway into the surrounding environment. In the process of designing the layout of highway landscaping, various measurements, calculations, and practical operations are often required. The measurement process is inseparable from the use of measuring instruments. Existing measuring instruments are mainly divided into mechanical, optical, and electronic sensing types. For the complex terrain of highway landscaping, staff often use measuring wheels, which are more versatile measuring instruments.

[0003] During use, the measuring wheel simply requires the operator to push the handle to make it roll on the surface to be measured, while the operator walks along with it. After measurement, the distance is determined by reading the gear counter on the measuring wheel. However, in the current method of using the measuring wheel, since it is manually operated and supported by the operator, if the road surface is sloping, the operator's gripping action can easily cause the handle to tilt at an increased angle, which in turn increases the angle between the measuring wheel and the measuring point pointer, resulting in inaccurate measurement data. Furthermore, the gear counter on the measuring wheel is installed on the side of the measuring wheel, which causes the weight on both sides of the measuring wheel to be different. During the operation, the operator can easily cause the measuring wheel to tilt to one side, which also affects the accuracy of the subsequent measurement data. Therefore, a dimension measuring instrument for highway landscape design is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dimension measuring instrument for highway landscape design. It features the advantages of keeping the measuring wheel stable during slope road measurement, preventing the push rod from tilting and affecting the distance measurement, neutralizing the weight of the gear counter to ensure the stability of the measuring wheel during rolling, and improving the accuracy of measurement data. This solves the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a dimension measuring instrument for highway landscape design, including a hub and a rotating shaft. The rotating shaft is fixedly sleeved in the middle of the inner side of the hub. A mechanical counter for counting is provided on the outer surface of the end of the rotating shaft away from the hub. A mounting plate for supporting the mechanical counter is fixedly connected to the lower surface of the mechanical counter. A mounting sleeve is fixedly connected to the top surface of the mounting plate. A support rod is fixedly sleeved inside the mounting sleeve by screws. A telescopic push rod for easy operation by the user is fixedly connected to the upper end of the support rod. A handle for easy gripping is fixedly connected to the end of the telescopic push rod away from the support rod. A fixing sleeve for easy disassembly of the telescopic push rod is provided on the outer surface of the telescopic push rod. An air spring is provided on the fixing sleeve. A counterweight device is provided on the hub. A switch device for easy operation is provided on the handle.

[0006] Preferably, the air spring includes a connecting block, which is fixedly connected to the outer surface of the fixed sleeve. A fixed rod is fixedly connected to the middle of the bottom end of the connecting block, and a movable sleeve for support and buffering is movably sleeved on the outer surface of the fixed rod at the end away from the connecting block.

[0007] Preferably, the air spring further includes a piston plate, which is slidably connected to the inner cavity of the movable sleeve. The end of the fixed rod away from the connecting block extends into the movable sleeve, and the end of the fixed rod extending into the movable sleeve is fixedly connected to the piston plate.

[0008] Preferably, the counterweight device includes a rotating ring, which is rotatably connected to the side of the hub away from the mechanical counter, and a circular tube for facilitating gas transmission is fixedly connected to the end of the rotating ring away from the hub.

[0009] Preferably, a rubber tire for holding counterweights is fixedly connected to the side of the circular tube away from the rotating ring, and the interior of the rubber tire is filled with liquid counterweights for balancing the weight of the mechanical counter.

[0010] Preferably, the switching device consists of a lever, a connecting rope, a piston plate, and a spring. The connecting rope passes through the connecting block, the fixing rod, and the piston plate in sequence and extends into the interior of the movable sleeve. The connecting rope is fixedly connected to the piston plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, through the design of a connecting block, a fixed rod, a movable sleeve, and a piston plate, ensures that when the measuring wheel rolls on the road surface to be measured, if it encounters a sloping road surface, the movable sleeve, which is in contact with the ground through the universal wheel, will be subjected to an inclination force and cooperate with the piston plate. Since the angle between the connecting block and the fixed sleeve is constant, if the telescopic push rod shifts downward, the angle between the connecting block and the fixed sleeve will limit the shift of the telescopic push rod. This ensures that the angle of the telescopic push rod is always kept in a suitable position, and the measurement data will not be inaccurate due to the sloping road surface.

[0012] 2. This utility model designs a rotating ring, a circular tube, and a rubber tire. By filling the inside of the rubber tire with liquid, the liquid inside the rubber tire is used to balance the weight of the mechanical counter. This prevents the measuring wheel from tilting due to excessive weight difference between the two sides during use, thus ensuring the measurement accuracy of the measuring wheel.

[0013] 3. This utility model, through the design of a paddle, connecting rope, piston plate two, and connecting tube, addresses the issue of the measuring wheel bouncing when it encounters potholes during travel. The operator can activate the paddle to apply tension to the connecting rope, which then transmits this tension to piston plate two. This causes piston plate two to move upwards inside the movable sleeve, forcing gas from inside the sleeve into the connecting tube. The gas then flows through the connecting tube into the circular tube and finally into the rubber tire. As the gas enters the rubber tire, it expands, keeping the counterweight liquid inside the tire at the bottom. This causes the center of gravity of the measuring wheel to shift downwards, thus cushioning the bouncing caused by potholes and further improving the measuring wheel's accuracy. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model; Figure 2 This is a three-dimensional structural diagram of the side measuring point pointer of this utility model; Figure 3 This is a three-dimensional structural diagram of the hub and rotating ring of this utility model; Figure 4 This is a schematic diagram of the internal structure of the movable sleeve of this utility model; Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0015] In the diagram: 1. Hub; 101. Rotating ring; 102. Circular tube; 103. Rubber tire; 104. Connecting tube; 2. Measuring wheel; 3. Rotating shaft; 4. Mechanical counter; 5. Mounting plate; 6. Zeroing switch; 7. Limit sleeve; 8. Measuring point pointer; 9. Mounting sleeve; 10. Support rod; 11. Telescopic push rod; 12. Handle; 121. Paddle; 122. Connecting rope; 123. Piston plate two; 124. Spring; 13. Corner support frame; 14. Fixed sleeve; 141. Connecting block; 142. Fixed rod; 143. Movable sleeve; 144. Piston plate one; 145. Connector; 146. Support frame; 147. Caster wheel. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5A dimensional measuring device for highway landscape design includes a hub 1 and a rotating shaft 3. The rotating shaft 3 is fixedly sleeved on the inner middle of the hub 1. A distance measuring wheel 2 for measuring distance is fixedly installed on the outer surface of the hub 1. A mechanical counter 4 for counting is provided on the outer surface of the rotating shaft 3 away from the hub 1. The mechanical counter 4 is a gear counter, and the outer surface of the rotating shaft 3 is fixedly sleeved with the gear inside the mechanical counter 4. A mounting plate 5 for supporting the mechanical counter 4 is fixedly connected to the lower surface of the mechanical counter 4. A corner block for supporting the rotating shaft 3 is fixedly connected to the mounting plate 5. The rotating shaft 3 extends out of the outer surface of the mechanical counter 4 and rotates and sleeves with the corner block. A zeroing switch 6 for clearing the mechanical counter 4 is provided on the mechanical counter 4 through a torsion spring (the zeroing switch 6 is an existing structure on the mechanical counter 4 and belongs to the mature technology in the field of counters, so it is not described in detail in this application), which facilitates clearing the reading after use. Two symmetrically arranged limiting sleeves 7 are fixedly connected to the side of the mechanical counter 4 away from the hub 1. An internally movable corner support frame 13 is fitted to support the hub 1 and the measuring wheel 2. When the distance measurement is paused, the corner support frame 13 can be rotated to contact the ground, thereby supporting the measuring wheel 2. A measuring point pointer 8 for indicating the starting and ending points of the distance measurement is rotatably mounted on the center of the hub 1 away from the rotation axis 3 via screws. A mounting sleeve 9 is fixedly connected to the top surface of the mounting plate 5. A support rod 10 is fixedly fitted inside the mounting sleeve 9 via screws. The upper end of the support rod 10 is fixedly connected to a device for easy operation by the user. The telescopic push rod 11 is fixedly connected to a handle 12 for easy gripping at one end away from the support rod 10. The operator only needs to hold the handle 12 and then use the handle 12 to apply a pushing force to the telescopic push rod 11. Through the transmission of force, the measuring wheel 2 rolls on the road surface to be measured for measurement. The outer surface of the telescopic push rod 11 is provided with a fixing sleeve 14 for easy disassembly of the telescopic push rod 11. An air spring is provided on the fixing sleeve 14. A counterweight device is provided on the wheel hub 1. A switch device for easy operation is provided on the handle 12.

[0018] Please see Figure 1 , Figure 2 and Figure 4 The air spring includes a connecting block 141, which is fixedly connected to the outer surface of the fixed sleeve 14. The angle between the connecting block 141 and the fixed sleeve 14 is fixed to ensure that the angle between the telescopic push rod 11 and the road surface is always consistent, preventing the angle of the telescopic push rod 11 from tilting and causing an increase in measurement data error. A fixed rod 142 is fixedly connected to the middle of the bottom end of the connecting block 141. A movable sleeve 143 for support and buffering is movably sleeved on the outer surface of the fixed rod 142 away from the connecting block 141.

[0019] Please see Figure 4 The air spring also includes a piston plate 144, which is slidably connected to the inner cavity of the movable sleeve 143. The end of the fixed rod 142 away from the connecting block 141 extends into the movable sleeve 143, and the end of the fixed rod 142 extending into the movable sleeve 143 is fixedly connected to the piston plate 144. The bottom end of the movable sleeve 143 is provided with a traveling device. Through the cooperation of the traveling device and the movable sleeve 143, when the measuring wheel 2 encounters a sloping road surface, the fixed rod 142 moves with the piston plate 144 inside the movable sleeve 143 by the compression of the movable sleeve 143, and compresses the gas inside the movable sleeve 143. This allows the distance between the movable sleeve 143 and the fixed rod 142 to be adjusted. Furthermore, the air pressure inside the movable sleeve 143 keeps the traveling device at the bottom of the movable sleeve 143 in contact with the road surface to be measured, so that the angle between the telescopic push rod 11 and the road surface remains unchanged.

[0020] Please see Figure 1 , Figure 2 and Figure 4 The walking device includes a connector 145, which is fixedly connected to the bottom end of the movable sleeve 143. The connector 145 is fixedly connected to a support frame 146 for easy installation via a pin. The bottom surface of the support frame 146 is rotatably mounted with universal wheels 147 for walking and auxiliary support of the movable sleeve 143. The design of the universal wheels 147 ensures that the angle of the telescopic push rod 11 remains unchanged, and also provides auxiliary support for the measuring wheel 2, ensuring the stability of the measuring wheel 2 during the measurement process.

[0021] Please see Figure 1 , Figure 2 and Figure 3 The counterweight device includes a rotating ring 101, which is rotatably connected to the side of the hub 1 away from the mechanical counter 4. A circular tube 102 for facilitating gas transmission is fixedly connected to the end of the rotating ring 101 away from the hub 1. A rubber tire 103 for holding the counterweight is fixedly connected to the side of the circular tube 102 away from the rotating ring 101. The interior of the rubber tire 103 is filled with liquid counterweight to balance the weight of the mechanical counter 4. The inner cavity of the circular tube 102 is connected to the inner cavity of the rubber tire 103 through a connecting hole. By filling the interior of the rubber tire 103 with liquid counterweight, the weight of the mechanical counter 4 is balanced, greatly reducing the weight difference between the two sides of the measuring wheel 2, making the measuring wheel 2 more stable during movement.

[0022] Please see Figures 1-2The switching device includes a lever 121, which is hinged to the inside of the handle 12 via a hinge and a compression spring. A connecting rope 122 for applying force is fixedly connected to the bottom surface of the lever 121. The connecting rope 122 passes sequentially through the connecting block 141, the fixing rod 142, and the first piston plate 144, extending into the interior of the movable sleeve 143. A second piston plate 123 for pushing gas is slidably connected to the interior of the movable sleeve 143, located below the first piston plate 144. One end of the connecting rope 122 extending into the movable sleeve 143 is fixedly connected to the side wall of the second piston plate 123. A device for the second piston plate 123 is fixedly connected to the top surface of the second piston plate 123. The spring 124 resets the piston plate 123. The end of the spring 124 away from the piston plate 123 is fixedly connected to the bottom surface of the piston plate 144. The spring 124 is sleeved on the outside of the connecting rope 122. While ensuring that the piston plate 123 resets after moving, the spring 124 also ensures that the piston plate 123 and the connecting rope 122 are not affected by the movement of the piston plate 144 alone. This ensures that the operator can pull the piston plate 123 inside the movable sleeve 143 by turning the lever 121 and the connecting rope 122. This allows the piston plate 123 to compress the gas inside the movable sleeve 143, thereby changing the internal air pressure of the movable sleeve 143.

[0023] Please see Figure 1 , Figure 2 and Figure 3 A connecting pipe 104 for gas transmission is fixedly connected to the outer surface of the circular tube 102. The end of the connecting pipe 104 away from the circular tube 102 is fixedly connected to the side wall of the movable sleeve 143. The connecting pipe 104 connects the circular tube 102 to the inner cavity of the movable sleeve 143, ensuring that after the movable sleeve 143 is compressed by the piston plate 123, the gas inside the movable sleeve 143 is forced into the connecting pipe 104 and then transmitted into the rubber tire 103 through the connecting pipe 104 and the circular tube 102, thus allowing the original... The rubber tire 103, filled with counterweight liquid, expands, creating gaps inside. This ensures that the counterweight liquid inside the rubber tire 103 remains at the bottom, causing the overall center of gravity of the measuring wheel 2 to shift downwards, thus ensuring the stability of the measuring wheel 2. The connecting pipe 104 is equipped with a waterproof and breathable membrane that only allows gas transmission. This ensures that gas inside the movable sleeve 143 can enter the rubber tire 103 while preventing the counterweight liquid inside the rubber tire 103 from flowing back into the movable sleeve 143.

[0024] Working principle: When measuring road surface during highway landscape design, the operator places the measuring wheel 2 on the road surface to be measured, then aligns the measuring point pointer 8 with the starting point of the road surface. The operator then holds the handle 12 and applies a pushing force, which is transmitted through the telescopic push rod 11, moving the mounting plate 5 and the mechanical counter 4. The rotating shaft 3 causes the measuring wheel 2 to rotate and move on the road surface. As the measuring wheel 2 rotates, the mechanical counter 4 begins counting. During this process, if a slope is encountered... Since the caster wheel 147 is always in contact with the road surface to be measured, when the road surface is tilted, the change in angle will cause the caster wheel 147 to move upward with the movable sleeve 143. This causes the movable sleeve 143 to generate a force between the piston plate 144 on the fixed rod 142 and form an air spring. Since the angle between the connecting block 141 and the fixed sleeve 14 is fixed, the angle between the telescopic push rod 11 and the road surface to be measured remains constant, effectively preventing the increase in measurement error caused by the change in the angle of the telescopic push rod 11. Secondly, through the rubber tire 1 The internal counterweight liquid in 03 balances the weight of the mechanical counter 4, reducing the weight deviation on both sides of the measuring wheel 2. This prevents the measuring wheel 2 from tilting due to a large weight difference on both sides. When the measuring wheel 2 encounters potholes during measurement, the operator only needs to move the lever 121 to apply tension to the connecting rope 122. The tension is then transmitted through the connecting rope 122 to the piston plate 123, causing the piston plate 123 to move inside the movable sleeve 143. This utilizes the piston plate 123... 123 compresses the gas inside the movable sleeve 143, causing the gas inside the movable sleeve 143 to enter the connecting pipe 104. Through the transmission of the circular pipe 102, the gas enters the rubber tire 103, causing the rubber tire 103 to expand. The expanded rubber tire 103 creates a space inside, so that the counterweight liquid inside the rubber tire 103 is always kept in the lower part of the rubber tire 103. This causes the overall center of gravity of the measuring wheel 2 to shift downward, thereby reducing the bounce of the measuring wheel 2 when encountering potholes and improving the measurement accuracy of the measuring wheel 2.

Claims

1. A dimensional measuring instrument for highway landscape design, comprising a hub (1) and a rotating shaft (3), wherein the rotating shaft (3) is fixedly sleeved on the inner center of the hub (1), characterized in that: A mechanical counter (4) for counting is provided on the outer surface of the rotating shaft (3) away from the hub (1). A mounting plate (5) for supporting the mechanical counter (4) is fixedly connected to the lower surface of the mechanical counter (4). A mounting sleeve (9) is fixedly connected to the top surface of the mounting plate (5). A support rod (10) is fixedly sleeved inside the mounting sleeve (9) by screws. A telescopic push rod (11) for easy operation by the user is fixedly connected to the upper end of the support rod (10). A handle (12) for easy gripping is fixedly connected to the end of the telescopic push rod (11) away from the support rod (10). A fixing sleeve (14) for easy disassembly of the telescopic push rod (11) is provided on the outer surface of the telescopic push rod (11). An air spring is provided on the fixing sleeve (14). A counterweight device is provided on the hub (1). A switch device for easy operation is provided on the handle (12).

2. A size measuring device for highway landscape design according to claim 1, characterized in that: The air spring includes a connecting block (141), which is fixedly connected to the outer surface of the fixed sleeve (14). A fixed rod (142) is fixedly connected to the middle of the bottom end of the connecting block (141). A movable sleeve (143) for support and buffering is movably sleeved on the outer surface of the fixed rod (142) away from the connecting block (141).

3. A size measuring device for highway landscape design according to claim 2, characterized in that: The air spring also includes a piston plate (144), which is slidably connected to the inner cavity of the movable sleeve (143). The end of the fixed rod (142) away from the connecting block (141) extends into the movable sleeve (143), and the end of the fixed rod (142) extending into the movable sleeve (143) is fixedly connected to the piston plate (144).

4. The size measuring device for highway landscape design according to claim 1, wherein: The counterweight device includes a rotating ring (101), which is rotatably connected to the side of the hub (1) away from the mechanical counter (4). A circular tube (102) for facilitating gas transmission is fixedly connected to one end of the rotating ring (101) away from the hub (1).

5. A size measuring device for highway landscape design according to claim 4, characterized in that: The circular tube (102) is fixedly connected to a rubber tire (103) for holding counterweights on the side away from the rotating ring (101). The interior of the rubber tire (103) is filled with liquid counterweights for balancing the weight of the mechanical counter (4).

6. The size measuring device for highway landscape design according to claim 3, wherein: The switching device consists of a lever (121), a connecting rope (122), a piston plate (123), and a spring (124). The connecting rope (122) passes through the connecting block (141), the fixing rod (142), and the piston plate (144) in sequence and extends into the interior of the movable sleeve (143). The connecting rope (122) is fixedly connected to the piston plate (123).

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