Safety anti-collision mechanism of electric flat carriage

Abstract

The utility model discloses a safety anti-collision mechanism of an electric flat carriage. The safety anti-collision mechanism comprises a frame, a brake mechanism and a damping mechanism, wheels are uniformly distributed on the left and right sides of the lower end of the frame, and protective covers are fixedly connected to the front and rear ends of the frame; the brake mechanisms are arranged between the front side face and the rear side face of the frame and the interior of the protective cover respectively; the damping mechanisms are arranged on the left side face and the right side face of the frame respectively, the single-chip microcomputer is fixedly connected to the right end of the front side face of the frame, the input end of the single-chip microcomputer is electrically connected with an external power source, and the infrared distancers are fixedly connected to the left end and the right end of the upper surface of the frame respectively. According to the safe anti-collision mechanism of the electric flat car, anti-collision is achieved, the detection range is large, detection is not interfered by environment and external factors, the requirement for large-range accurate anti-collision of the flat car is met, losses caused by collision are reduced, and enough safe distance is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric flat car equipment, in particular to a safety anti-collision mechanism for an electric flat car. Background Art

[0002] Electric flat cars are the most commonly used devices in large workshops. People often use them to transport goods and achieve fast and convenient delivery effects. Due to the negligence of electric flat car operators, electric flat cars often crash into workshop doors or debris on the track damages the bottom shell of the travel motor at the bottom of the flat car.

[0003] Traditional anti-collision devices mainly include photoelectric switches, reversing radars and other devices, which achieve anti-collision by sending and receiving signals through the irradiation and reflection of light, or by monitoring obstacles through reversing radars.

[0004] There are some problems mentioned above. Due to the limitations of the on-site environment, the photoelectric switch is easily contaminated by dust, resulting in insensitive reflection. Moreover, its light beam detection range is small and cannot meet the large-scale anti-collision requirements of the flat car. The reversing radar can only detect obstacles of one meter and is also easily affected by noise, and there is not enough safety distance. For this reason, we propose an electric flat car safety anti-collision mechanism. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a safety anti-collision mechanism for an electric flat car to achieve anti-collision, with a large detection range. The detection is not interfered by the environment and external factors, and meets the large-scale and accurate anti-collision requirements of the flat car, reduces the losses caused by collisions, and also provides a sufficient safety distance, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric flat car safety anti-collision mechanism, including a frame, a brake mechanism and a shock absorbing mechanism;

[0007] Frame: The lower left and right sides of the frame are equipped with evenly distributed wheels, and the front and rear ends of the frame are fixedly connected with protective covers;

[0008] Braking mechanism: it is respectively arranged between the front and rear sides of the frame and the inside of the protective cover;

[0009] Shock-absorbing mechanism: It is respectively arranged on the left and right sides of the frame to achieve anti-collision, with a large detection range. The detection is not affected by the environment and external factors, which meets the large-scale and accurate anti-collision requirements of the flat car, reduces the losses caused by collision, and also provides a sufficient safety distance.

[0010] Furthermore, it also includes a single-chip microcomputer, which is fixedly connected to the right end of the front side of the frame, and the input end of the single-chip microcomputer is electrically connected to an external power supply to regulate the operation of the electrical appliances.

[0011] Furthermore, it also includes an infrared rangefinder, which is fixedly connected to the left and right ends of the upper surface of the frame respectively, and four evenly distributed infrared rangefinders are bidirectionally electrically connected to the single-chip microcomputer to detect distance information.

[0012] Furthermore, the brake mechanism includes connecting rod 1, connecting rod 2, a fixed shaft, a support block, a brake rod and a brake pad. The fixed shaft is respectively fixedly connected to the left and right ends of the front and rear sides of the frame, and the end of the fixed shaft away from the frame is fixedly connected to the support block, the ends of the two right support blocks away from the frame are rotatably connected to connecting rod 1 through a pin shaft, and the ends of the two left support blocks away from the frame are rotatably connected to connecting rod 2 through a pin shaft, the right end of connecting rod 1 and the left end of connecting rod 2 are connected to the brake rod through bolts, and the ends of the four brake rods close to the frame are fixedly connected to the brake pads, and the brake pads are installed in cooperation with the outer side of the wheel to achieve braking anti-collision.

[0013] Furthermore, the brake mechanism also includes an electric push rod and a fixed block, the electric push rods are respectively fixedly connected to the center of the front and rear sides of the frame, the telescopic ends of the two electric push rods are fixedly connected to the fixed blocks, the middle of the fixed blocks are opened with avoidance openings, the left end of connecting rod one and the right end of connecting rod two are provided with adjustment shafts, the adjustment shafts are located inside adjacent avoidance openings, the input end of the electric push rod is electrically connected to the output end of the single-chip microcomputer, the electric push rod, fixed block, connecting rod one, connecting rod two, fixed shaft, support block, brake rod and brake pad are all arranged inside the protective cover to provide braking driving force.

[0014] Furthermore, the shock absorbing mechanism includes a damper, a spring and a bumper, the dampers are respectively fixedly connected to the front and rear ends of the left and right sides of the frame, the ends of the telescopic rods of two longitudinally adjacent dampers away from the frame are fixedly connected to a bumper, four springs are fixedly connected between the bumper and the fixed ends of the dampers, and the springs are respectively mounted on the outside of the telescopic rods of the four dampers to perform shock absorbing operations.

[0015] Furthermore, it also includes a traveling motor, which is fixedly connected to the lower right corner of the inner part of the frame, and a worm is fixedly connected to the left end of the output end of the traveling motor, and a worm wheel is fixedly sleeved in the middle part of the connecting rod between the two wheels on the right side, and the worm is meshingly connected with the worm wheel, and the input end of the traveling motor is electrically connected to the output end of the single-chip microcomputer to drive the flat car to move.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The operator of the electric flat car places the goods on the frame. Through the regulation of the single-chip microcomputer, the travel motor runs, driving the wheels to rotate and drive the flat car to move. When the flat car encounters a gate or debris in front of it, the infrared rangefinder monitors the distance between the flat car and the obstacle in real time, and transmits the collected distance information to the single-chip microcomputer. Through the regulation of the single-chip microcomputer, the electric push rods on both sides of the frame run, pushing the fixed block, driving the end of the connecting rod one and the connecting rod two close to the fixed block to move outward, and then under the action of the fixed shaft and the support block, the brake rod is driven to move inward through the lever principle, pushing the four brake pads to contact the adjacent wheels, braking and decelerating, and realizing collision avoidance. The detection range is large and the detection is not affected by the environment and external factors, which meets the large-scale and precise collision avoidance of the flat car.

[0018] 2. When the cargo is loaded too much, inertia factors will cause untimely braking. The bumper on the front side of the flat car will first contact the obstacle, and then the damper will retract and damp the shock and the spring will buffer, protecting the flat car itself from collision damage, reducing the loss caused by the collision, and providing sufficient safety distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the front side sectional structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the partial structure of the front side of the utility model;

[0022] Figure 4 This is an enlarged structural diagram of the utility model at A;

[0023] Figure 5 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0024] In the figure: 1 frame, 2 single chip computer, 3 infrared rangefinder, 4 brake mechanism, 41 electric push rod, 42 fixed block, 43 connecting rod 1, 44 connecting rod 2, 45 fixed shaft, 46 support block, 47 brake lever, 48 brake pad, 5 shock absorbing mechanism, 51 damper, 52 spring, 53 bumper, 6 travel motor, 7 wheel, 8 protective cover, 9 worm gear. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 , this embodiment provides a technical solution: an electric flat car safety anti-collision mechanism, including a frame 1, a brake mechanism 4 and a shock absorbing mechanism 5;

[0027] Frame 1: Evenly distributed wheels 7 are provided on both sides of the lower end, and protective covers 8 are fixedly connected to the front and rear ends of the frame 1. It also includes an infrared rangefinder 3, which is respectively fixedly connected to the left and right ends of the upper surface of the frame 1. Four evenly distributed infrared rangefinders 3 are bidirectionally electrically connected to the single-chip microcomputer 2. It also includes a travel motor 6, which is fixedly connected to the lower right corner of the inner part of the frame 1. A worm is fixedly connected to the left end of the output end of the travel motor 6. A worm gear 9 is fixedly sleeved in the middle of the connecting rod between the two wheels 7 on the right side. The worm gear is meshed with the worm gear 9. The input end of the travel motor 6 is electrically connected to the output end of the single-chip microcomputer 2. The operator of the electric flat car places the goods on the frame 1. Through the regulation of the single-chip microcomputer 2, the travel motor 6 runs, drives the wheels 7 to rotate, and drives the flat car to move. When the flat car encounters a gate or debris in front of the flat car, the infrared rangefinder 3 monitors the distance between the flat car and the obstacle in real time, and transmits the collected distance information to the single-chip microcomputer 2.

[0028] Brake mechanism 4: It is respectively arranged between the front and rear sides of the frame 1 and the inside of the protective cover 8. The brake mechanism 4 includes a connecting rod 1 43, a connecting rod 2 44, a fixed shaft 45, a support block 46, a brake rod 47 and a brake pad 48. The fixed shaft 45 is respectively fixedly connected to the left and right ends of the front and rear sides of the frame 1. The end of the fixed shaft 45 away from the frame 1 is fixedly connected to the support block 46. The ends of the two right support blocks 46 away from the frame 1 are rotatably connected to the connecting rod 1 43 through a pin shaft. The ends of the two left support blocks 46 away from the frame 1 are rotatably connected to the connecting rod 2 44 through a pin shaft. The right end of the connecting rod 1 43 and the left end of the connecting rod 2 44 are bolted to the brake rod 47. The ends of the four brake rods 47 close to the frame 1 are fixedly connected to the brake pad 48. The brake pad 48 is installed in cooperation with the outer side of the wheel 7. The brake mechanism 4 also includes an electric push rod 41 and a fixed block 42. The electric push rod 41 is respectively The electric push rods 41 are fixedly connected to the center of the front and rear sides of the frame 1. The telescopic ends of the two electric push rods 41 are fixedly connected to the fixed blocks 42. The middle of the fixed blocks 42 is provided with avoidance openings. The left end of the connecting rod 1 43 and the right end of the connecting rod 2 44 are provided with adjustment shafts. The adjustment shafts are located inside the adjacent avoidance openings. The input end of the electric push rod 41 is electrically connected to the output end of the single-chip computer 2. The electric push rods 41, the fixed blocks 42, the connecting rod 1 43, the connecting rod 2 44, the fixed shaft 45, the support block 46, the brake rod 47 and the brake pad 48 are all arranged inside the protective cover 8. Through the regulation of the single-chip computer 2, the electric push rods 41 on both sides of the frame are operated to push the fixed blocks 42, drive the ends of the connecting rods 1 43 and the connecting rod 2 44 close to the fixed blocks 42 to move outward, and then drive the brake rod 47 to move inward through the lever principle under the action of the fixed shaft 45 and the support block 46, and push the four brake pads 48 to contact the adjacent wheels to brake and decelerate.

[0029] Shock-absorbing mechanism 5: It is respectively arranged on the left and right sides of the frame 1. The shock-absorbing mechanism 5 includes a damper 51, a spring 52 and a bumper 53. The damper 51 is respectively fixedly connected to the front and rear ends of the left and right sides of the frame 1. The ends of the telescopic rods of two longitudinally adjacent dampers 51 away from the frame 1 are fixedly connected to a bumper 53. Four springs 52 are fixedly connected between the bumper 53 and the fixed ends of the damper 51. The springs 52 are respectively sleeved on the outside of the telescopic rods of the four dampers 51. When too much cargo is loaded, the inertia factor will cause the brakes to be delayed. The bumper 53 on the front side of the flat car will first contact the obstacle, and then the flat car itself is protected from collision damage through the telescopic shock absorption of the damper 51 and the buffering of the spring 52;

[0030] The vehicle frame 1 further comprises a single chip microcomputer 2, which is fixedly connected to the right end of the front side surface of the vehicle frame 1, and the input end of the single chip microcomputer 2 is electrically connected to an external power supply.

[0031] The working principle of the safety anti-collision mechanism of an electric flat car provided by the utility model is as follows: the electric flat car operator places the goods on the frame 1, and through the regulation of the single-chip microcomputer 2, the travel motor 6 runs, and the output shaft of the travel motor 6 rotates to drive the worm to rotate, and under the transmission of the worm gear 9, the right wheel 7 is driven to rotate, and the flat car is driven to move under the rolling support of the left wheel 7. When the flat car encounters a gate or debris in front of it, the infrared rangefinder 3 monitors the distance between the flat car and the obstacle in real time, and transmits the collected distance information to the single-chip microcomputer 2. Through the regulation of the single-chip microcomputer 2, the electric push rods 41 on both sides of the frame run to push the fixed block 42 to move The movement of the fixed block 42 causes the avoidance opening in the middle part to slide and rotate with the adjustment shafts at the right end of the connecting rod 1 43 and the left end of the connecting rod 2 44, respectively, driving the ends of the connecting rod 1 43 and the connecting rod 2 44 close to the fixed block 42 to move outward, and then under the action of the fixed shaft 45 and the supporting block 46, the brake rod 47 is driven to move inward through the lever principle, pushing the four brake pads 48 to contact the adjacent wheels 7 for braking and deceleration. When too much cargo is loaded, inertia factors will cause untimely braking, and the bumper 53 on the front side of the flat car will first contact the obstacle, and then the damper 51 will be telescopically damped and the spring 52 will be used for buffering to protect the flat car itself from collision damage.

[0032] It is worth noting that the electric push rod 41 disclosed in the above embodiment can be selected from DL-2020061693C electric push rod, the infrared rangefinder 3 can be selected from MK06-40-200, the travel motor 6 can be selected from YE2-7124, and the single-chip microcomputer 2 controls the operation of the electric push rod 41, the infrared rangefinder 3 and the travel motor 6 using methods commonly used in the prior art.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electric flat car safety anti-collision mechanism, characterized by: It comprises a frame (1), a brake mechanism (4) and a shock absorbing mechanism (5); The frame (1) has wheels (7) evenly distributed on both left and right sides of its lower end, and protective covers (8) are fixedly connected to both front and rear ends of the frame (1); Braking mechanism (4): it is respectively arranged between the front and rear sides of the frame (1) and the inside of the protective cover (8); Shock absorbing mechanism (5): which is respectively arranged on the left and right sides of the frame (1); The brake mechanism (4) comprises a connecting rod 1 (43), a connecting rod 2 (44), a fixed shaft (45), a support block (46), a brake rod (47) and a brake pad (48), wherein the fixed shaft (45) is respectively fixedly connected to the left and right ends of the front and rear sides of the frame (1), one end of the fixed shaft (45) away from the frame (1) is fixedly connected to the support block (46), one end of the two right support blocks (46) away from the frame (1) is rotatably connected to the connecting rod 1 (43) through a pin shaft, and one end of the two left support blocks (46) away from the frame (1) is rotatably connected to the connecting rod 2 (44) through a pin shaft, the right end of the connecting rod 1 (43) and the left end of the connecting rod 2 (44) are both connected to the brake rod (47) through bolts, and one end of the four brake rods (47) close to the frame (1) is fixedly connected to the brake pad (48), and the brake pad (48) is mounted in cooperation with the outer side surface of the wheel (7); The brake mechanism (4) also includes an electric push rod (41) and a fixed block (42), wherein the electric push rod (41) is fixedly connected to the center of the front and rear sides of the frame (1), respectively, and the telescopic ends of the two electric push rods (41) are fixedly connected to the fixed blocks (42), and the middle of the fixed blocks (42) are provided with avoidance openings, and the left end of the connecting rod 1 (43) and the right end of the connecting rod 2 (44) are provided with adjustment shafts, and the adjustment shafts are located inside adjacent avoidance openings, and the input end of the electric push rod (41) is electrically connected to the output end of the single-chip computer (2), and the electric push rod (41), the fixed block (42), the connecting rod 1 (43), the connecting rod 2 (44), the fixed shaft (45), the support block (46), the brake rod (47) and the brake pad (48) are all arranged inside the protective cover (8); The shock absorbing mechanism (5) comprises a damper (51), a spring (52) and a bumper (53); the dampers (51) are respectively fixedly connected to the front and rear ends of the left and right sides of the frame (1); the ends of the telescopic rods of two longitudinally adjacent dampers (51) away from the frame (1) are both fixedly connected to a bumper (53); four springs (52) are all fixedly connected between the bumper (53) and the fixed ends of the dampers (51); and the springs (52) are respectively sleeved on the outside of the telescopic rods of the four dampers (51).

2. The electric flat car safety anti-collision mechanism according to claim 1 is characterized in that: It also comprises a single chip computer (2), which is fixedly connected to the right end of the front side of the vehicle frame (1), and the input end of the single chip computer (2) is electrically connected to an external power supply.

3. The anti-collision safety mechanism for an electric flat car according to claim 2 is characterized in that: It also includes an infrared rangefinder (3), which is fixedly connected to the left and right ends of the upper surface of the vehicle frame (1), respectively, and four evenly distributed infrared rangefinders (3) are all bidirectionally electrically connected to the single-chip computer (2).

4. The electric flat car safety anti-collision mechanism according to claim 2 is characterized in that: The vehicle also comprises a travel motor (6), the travel motor (6) being fixedly connected to the lower right corner of the interior of the vehicle frame (1), a worm being fixedly connected to the left end of the output end of the travel motor (6), a worm gear (9) being fixedly sleeved at the middle of the connecting rod between the two wheels (7) on the right side, the worm gear being meshingly connected to the worm gear (9), and an input end of the travel motor (6) being electrically connected to an output end of the single-chip computer (2).

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