Land leveler cab crawling ladder anti-collision device

Abstract

The utility model discloses a grader cab ladder stand anti-collision device, which relates to the technical field of graders, and comprises a grader front rack and a ladder stand, the bottom of the grader front rack is rotatably provided with a traction frame through a ball head, the bottom of the traction frame is fixedly provided with a rotary ring, one side of the bottom of the rotary ring is fixedly provided with a scraper knife, and the other side of the rotary ring is fixedly provided with a handle. A flow motor is arranged between the bottom of the land leveler front rack and the traction frame, and the device is characterized by further comprising a front wide-angle camera fixedly installed at the front lower position of the land leveler front rack and distance sensors arranged on the two sides of the end, close to the land leveler front rack, of the crawling ladder. The distance between the scraper knife and the crawling ladder can be detected through the distance sensor, the distance state can be conveniently transmitted to the displayer through the front wide-angle camera, then the flow motor can conveniently drive the rotating ring and the scraper knife to rotate, and the scraper knife can be prevented from hurting workers.

Description

Technical Field

[0001] This utility model relates to the field of grader technology, specifically to a grader cab ladder anti-collision device. Background Technology

[0002] A grader is an earthmoving machine that uses a scraper to level the ground. The scraper is mounted between the front and rear axles and can be raised, lowered, tilted, rotated, and extended. It operates flexibly and accurately, is easy to operate, and provides high precision in leveling the ground. It is suitable for constructing roadbeds and pavements, building slopes, excavating ditches, mixing road mixtures, clearing snow, pushing loose materials, and maintaining dirt and gravel roads.

[0003] The existing technology has the following shortcomings: During the operation of the existing grader, when the worker is climbing up and down the ladder, it is not easy to detect the distance between the blade and the ladder, nor is it easy to control the position of the blade. This makes it easy for the blade to cause injury to the worker who is climbing, which in turn affects the worker's safety. Utility Model Content

[0004] The purpose of this invention is to provide a collision avoidance device for the ladder of a grader cab. A distance sensor can detect the distance between the blade and the ladder, and a front wide-angle camera can conveniently transmit the distance status to a display. This allows the flow motor to easily drive the rotary drum and blade to rotate, thus preventing the blade from causing injury to the operator and solving the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grader cab ladder anti-collision device, comprising a grader front frame and a ladder, wherein a traction frame is rotatably mounted on the bottom of the grader front frame via a ball joint, a slewing ring is fixed to the bottom of the traction frame, a blade is fixedly mounted on one side of the bottom of the slewing ring, a flow motor is provided between the bottom of the grader front frame and the traction frame, and further comprising:

[0006] The front wide-angle camera is fixedly installed at the lower front of the front frame of the grader to display the distance between the blade and the ladder on the monitor.

[0007] Distance sensors are installed on both sides of the ladder near the front frame of the grader to detect the distance between the blade and the ladder;

[0008] The mounting mechanism, located on the outside of the distance sensor, is used to install and fix the distance sensor.

[0009] Preferably, the distance sensor includes a sensor body, and sensor protective covers are fixedly installed on both outer walls of the end of the ladder near the front frame of the grader. The inner walls of the two sensor protective covers are movably connected to the outer walls of the two sensor bodies, and a baffle plate is fixedly installed on the outer wall of one end of the sensor body.

[0010] Preferably, the mounting mechanism includes a clamping plate, which is movably sleeved on the outside of the sensor body and located outside the sensor protective cover. The inner wall of the clamping plate is threaded with multiple connecting bolts, which penetrate the inner wall of the sensor protective cover and are threadedly connected to the inner wall of the barrier plate.

[0011] Preferably, the other end of the outer wall of the sensor body has movable slots at the top and bottom, and the inner top and bottom of the clamping plate are fixedly installed with movable seats that are movably connected to the inner wall of the adjacent movable slots. Movable rods are fixedly installed at the ends of the two movable seats away from the sensor protective cover.

[0012] Preferably, the inner wall of the movable rod is provided with equal-spaced adjustment holes, and a fixing plate is movably sleeved on the outer side of the two movable rods at the end away from the movable seat, and a protective plate is fixedly installed on the outer side of the two fixing plates at the end away from the movable rod.

[0013] Preferably, each of the two fixing plates has a fixing hole on the inner wall of the end near the movable rod, and a fastening bolt is threaded into the inner wall of the fixing hole. The ends of the two fastening bolts away from the fixing holes are threaded to the inner wall of the adjacent adjusting hole.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. The distance sensor can detect the distance between the ladder and the blade. When the distance between the blade and the ladder reaches 0.5m, the sensor radar will sound an alarm from the cab. As the distance gets closer, the alarm will become more frequent, the flow motor will rotate slower and slower, and then the blade will rotate slower. When the distance reaches 0.2m, the controller will stop the flow motor from rotating and will only be able to continue operating by reversing the operation. At the same time, the front wide-angle camera can display the position status of the blade relative to the ladder on the display. When the distance is close, a red mark will be displayed, which can ensure a safe distance between the blade and the ladder and prevent the blade from causing injury to the workers who are climbing.

[0016] 2. The sensor body can be installed on the inner wall of the sensor protective cover by the cooperation between the clamping plate and the barrier plate. The connecting bolt passes through the clamping plate and the sensor protective cover and is threaded to the inner wall of the barrier plate to fix the sensor body. At the same time, the position of the clamping plate can be easily adjusted by moving the movable rod, so that the clamping plate can adapt to the installation of sensor protective covers of different thicknesses. The fastening bolt passes through the fixing hole and is threaded to the inner wall of the adjacent adjustment hole to fix the adjusted clamping plate. At the same time, the protective plate can protect the detection end of the sensor body. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the distance sensor and mounting mechanism of this utility model.

[0020] Figure 3 This is a front vertical sectional view of the distance sensor and mounting mechanism of this utility model.

[0021] Figure 4 This utility model Figure 4 Enlarged view of part A.

[0022] Figure 5 This is a three-dimensional structural diagram of the distance sensor of this utility model.

[0023] Figure 6 This is an exploded three-dimensional view of the installation mechanism of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Grader front frame; 2. Display; 3. Front wide-angle camera; 4. Traction frame; 5. Flow motor; 6. Slewing ring; 7. Blade; 8. Sensor protective cover; 9. Distance sensor; 901. Sensor body; 902. Baffle plate; 903. Movable groove; 10. Ladder;

[0026] 11. Mounting mechanism; 1101. Clamping plate; 1102. Connecting bolts; 1103. Movable seat; 1104. Movable rod; 1105. Adjustment hole; 1106. Fixing plate; 1107. Protective plate; 1108. Fixing hole; 1109. Fastening bolts. Detailed Implementation

[0027] This utility model provides, for example Figure 1-2 The illustrated anti-collision device for the grader cab ladder includes a grader front frame 1 and a ladder 10. A tow frame 4 is rotatably mounted on the bottom of the grader front frame 1 via a ball joint. A slewing ring 6 is fixed to the bottom of the tow frame 4. A blade 7 is fixedly mounted on one side of the bottom of the slewing ring 6. A flow motor 5 is installed between the bottom of the grader front frame 1 and the tow frame 4. The device also includes:

[0028] The front wide-angle camera 3 is fixedly installed at the lower front position of the front frame 1 of the grader, and is used to display the distance status between the blade 7 and the ladder 10 on the display 2.

[0029] Distance sensors 9 are installed on both sides of one end of the ladder 10 near the front frame 1 of the grader, and are used to detect the distance between the blade 7 and the ladder 10;

[0030] Mounting mechanism 11 is located on the outside of distance sensor 9 and is used to install and fix distance sensor 9.

[0031] To facilitate the installation and fixation of the distance sensor 9, such as Figure 1-3 and Figure 5 As shown, the distance sensor 9 includes a sensor body 901. Sensor protective covers 8 are fixedly installed on both outer walls of the ladder 10 near the front frame 1 of the grader. The inner walls of the two sensor protective covers 8 are movably connected to the outer walls of the two sensor bodies 901 respectively. A baffle plate 902 is fixedly installed on the outer wall of one end of the sensor body 901. The sensor body 901 can be installed and fixed through the sensor protective covers 8, so that the distance sensor 9 remains stable during operation.

[0032] To ensure that the distance sensor 9 can be stably connected and installed with the sensor protective cover 8, such as Figure 2-3 and Figure 5-6 As shown, the mounting mechanism 11 includes a clamping plate 1101, which is movably sleeved on the outside of the sensor body 901 and located outside the sensor protective cover 8. Multiple connecting bolts 1102 are threaded into the inner wall of the clamping plate 1101. The multiple connecting bolts 1102 penetrate the inner wall of the sensor protective cover 8 and are threadedly connected to the inner wall of the barrier plate 902. The connecting bolts 1102 penetrate the inner wall of the clamping plate 1101 and the inner wall of the sensor protective cover 8 and are threadedly connected to the inner wall of the barrier plate 902, so that the clamping plate 1101 and the barrier plate 902 can stably install and fix the sensor body 901.

[0033] To ensure the stability of the clamping plate 1101 during adjustment, such as Figure 3 and Figure 5-6As shown, the sensor body 901 has movable slots 903 at the top and bottom of the outer wall at the other end. The clamping plate 1101 has movable seats 1103 fixedly installed at the top and bottom of the inner side, which are movably connected to the inner wall of the adjacent movable slots 903. Movable rods 1104 are fixedly installed at the ends of the two movable seats 1103 away from the sensor protective cover 8. The movable slots 903 can limit the movement of the movable seats 1103, so that the clamping plate 1101 remains stable during the adjustment process.

[0034] To facilitate the adjustment of the position of the clamping plate 1101, such as Figure 3-6 As shown, the inner wall of the movable rod 1104 is provided with equal-spaced adjustment holes 1105. A fixing plate 1106 is movably sleeved on the outer side of the end of each of the two movable rods 1104 away from the movable seat 1103. A protective plate 1107 is fixedly installed on the outer side of the end of each of the two fixing plates 1106 away from the movable rod 1104. A fixing hole 1108 is provided on the inner wall of the end of each of the two fixing plates 1106 near the movable rod 1104. A fastening bolt 1109 is threaded into the inner wall of the fixing hole 1108. The end of each of the two fastening bolts 1109 away from the fixing hole 1108 is connected to the corresponding... The inner wall of the adjacent adjustment hole 1105 is threaded, and the movable rod 1104 moves inside the fixed plate 1106, which can change the correspondence between the adjustment hole 1105 and the fixed hole 1108. This allows the position of the clamping plate 1101 to be adjusted according to the thickness of the sensor protective cover 8. The fastening bolt 1109 passes through the inner wall of the fixed hole 1108 and is threaded to the inner wall of the adjacent adjustment hole 1105, which can fix the adjusted clamping plate 1101. At the same time, the protective plate 1107 can protect the sensor body 901.

[0035] When using the anti-collision device, the distance sensor 9 is inserted into the inner wall of the sensor protective cover 8, so that the barrier plate 902 can contact the inner side of the sensor protective cover 8. Then, the clamping plate 1101 is fitted onto the outer side of the sensor body 901, so that the two movable seats 1103 move along the inner walls of the two movable slots 903 respectively. At the same time, the protective plate 1107 is placed in contact with the outer wall of the sensor body 901, so that the two fixed plates 1106 can be inserted into the inner walls of the two movable slots 903 respectively. As the clamping plate 1101 is adjusted, the distance sensor 9 is inserted into the inner wall of the sensor body 901, so that the distance sensor 902 can contact the inner wall of the sensor body 901 respectively. The movable rod 1104 moves along the inner wall of the fixed plate 1106, thereby changing the correspondence between the adjustment hole 1105 and the fixed hole 1108. When the clamping plate 1101 contacts the outer wall of the sensor protective cover 8, the fastening bolt 1109 is used to pass through the fixed hole 1108 and is threaded to the inner wall of the adjacent adjustment hole 1105. Then, the connecting bolt 1102 is used to pass through the clamping plate 1101 and the inner wall of the sensor protective cover 8 and is threaded to the inner wall of the barrier plate 902. Then, the sensor protective cover 8 is installed in front of the two side ladders 10.

[0036] Distance sensor 9 collects the safe distance between the blade 7 and the ladder 10 as the blade 7 rotates. Upon receiving the sensor information, the anti-collision controller activates the alarm. Starting at a distance of 0.5m, the radar triggers an alarm from the cab. As the distance approaches, the alarm becomes more frequent, the flow motor 5 rotates slower, and consequently, the blade 7 rotates slower. When the distance reaches 0.2m, the anti-collision controller controls the solenoid valve to direct the hydraulic flow, preventing the rotary motor from continuing to rotate; operation can only continue by reversing the direction of rotation. Distance sensor 9 operates after power is applied and automatically stops when the vehicle power is turned off. Simultaneously, the front wide-angle camera 3 displays the position of the blade 7 relative to the ladder 10 on the display 2. A red indicator appears when the distance is close, allowing for convenient detection and control of the distance between the blade 7 and the ladder 10, ensuring worker safety. This implementation specifically solves the problem in existing technologies where the inability to conveniently detect and control the distance between the blade 7 and the ladder 10 leads to potential injury to workers climbing the ladder.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A grader cab ladder anti-collision device, comprising a grader front frame (1) and a ladder (10), wherein a traction frame (4) is rotatably mounted on the bottom of the grader front frame (1) via a ball joint, a slewing ring (6) is fixed on the bottom of the traction frame (4), a blade (7) is fixedly mounted on one side of the bottom of the slewing ring (6), and a flow motor (5) is provided between the bottom of the grader front frame (1) and the traction frame (4), characterized in that, Also includes: A front wide-angle camera (3) is fixedly installed at the lower front of the front frame (1) of the grader, and is used to display the distance status between the blade (7) and the ladder (10) on the display (2); Distance sensors (9) are installed on both sides of the ladder (10) near the front frame (1) of the grader, and are used to detect the distance between the blade (7) and the ladder (10); The mounting mechanism (11) is located on the outside of the distance sensor (9) and is used to install and fix the distance sensor (9).

2. The grader cab ladder anti-collision device according to claim 1, characterized in that: The distance sensor (9) includes a sensor body (901). Sensor protective covers (8) are fixedly installed on both sides of the outer wall of the ladder (10) near the front frame (1) of the grader. The inner walls of the two sensor protective covers (8) are movably connected to the outer walls of the two sensor bodies (901). A baffle plate (902) is fixedly installed on the outer wall of one end of the sensor body (901).

3. The grader cab ladder anti-collision device according to claim 2, characterized in that: The mounting mechanism (11) includes a clamping plate (1101), which is movably sleeved on the outside of the sensor body (901) and located on the outside of the sensor protective cover (8). Multiple connecting bolts (1102) are threaded into the inner wall of the clamping plate (1101), and the multiple connecting bolts (1102) penetrate the inner wall of the sensor protective cover (8) and are threadedly connected to the inner wall of the barrier plate (902).

4. The grader cab ladder anti-collision device according to claim 3, characterized in that: The sensor body (901) has movable slots (903) at the top and bottom of the outer wall at the other end. The clamping plate (1101) has movable seats (1103) fixedly installed at the top and bottom of the inner side, which are movably connected to the inner wall of the adjacent movable slot (903). Movable rods (1104) are fixedly installed at the ends of the two movable seats (1103) away from the sensor protective cover (8).

5. The grader cab ladder anti-collision device according to claim 4, characterized in that: The inner wall of the movable rod (1104) is provided with equal-spaced adjustment holes (1105). The outer side of the two movable rods (1104) away from the movable seat (1103) is movably sleeved with a fixing plate (1106). The outer side of the two fixing plates (1106) away from the movable rods (1104) is fixedly installed with a protective plate (1107).

6. The grader cab ladder anti-collision device according to claim 5, characterized in that: The inner walls of the two fixed plates (1106) near the movable rod (1104) are provided with fixed holes (1108), and fastening bolts (1109) are threaded into the inner walls of the fixed holes (1108). The ends of the two fastening bolts (1109) away from the fixed holes (1108) are threaded to the inner walls of the adjacent adjusting holes (1105).

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