Anti-collision type forklift portal frame vertical height detection device

Abstract

The utility model discloses an anti-collision type forklift mast vertical height detection device in the technical field of hoisting equipment detection, which comprises a forklift body, a first support frame and a second support frame are sequentially arranged on the front side of the forklift body from left to right, a motor is arranged, the motor is started to drive a first screw rod to rotate, and a second screw rod is driven to rotate. The chain wheels are arranged at the top of the first screw and the top of the second screw, the chain is arranged between the two chain wheels for meshing, when the first screw rotates, the second screw is driven by the chain wheels and the chain to rotate at the same time, and the first sliding block and the second sliding block are driven by rotation of the first screw and the second screw to move; the first sliding block and the second sliding block can move to drive the transverse frame between the first sliding block and the second sliding block to move, when the transverse frame moves, rapid distance measuring operation is carried out through the infrared distance measuring instrument and the metal sheet, accurate distance measuring operation can be carried out through the infrared distance measuring instrument along with movement of the fork frame, accurate measurement of the vertical height of the forklift portal frame is achieved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment detection, in particular to an anti-collision type forklift door frame vertical height detection device. Background Art

[0002] The forklift mast is the main load-bearing structure of the forklift's pickup device. It is a mechanism used to lift goods. It is usually composed of an inner mast, an outer mast, a fork frame, a fork, a sprocket, a chain, a lifting cylinder, and a tilting cylinder. According to the lifting requirements, it is divided into two-stage or multi-stage masts, among which the two-stage mast is the most widely used. The maximum height that the fork can lift when the fork is lifted and the inner mast does not move is called the semi-free lifting height, which is generally about 30cm; when the fork frame is lifted to the top of the inner mast, the inner mast and the fork frame are lifted at the same time. At this time, the lifting height is called the full free lifting height, which is generally 2.5-3.

[0003] The existing patent publication number is CN215924302U, which discloses an anti-collision type forklift mast vertical height detection device, including a detection component arranged on the forklift, a distance sensor is arranged inside the detection component, the distance sensor is slidably connected to the detection component, and an anti-collision plate is arranged on the upper part of the detection component for causing the distance sensor to pop out from the inside of the detection component after being compressed. The forklift includes an outer mast, an inner mast, a fork frame, and a fork. The outer mast and the inner mast are slidably connected, the fork frame is slidably connected to the inner mast, the detection component is fixedly arranged at the top of the inner mast, and the bottom of the fork frame is provided with an induction plate for inductive docking with the distance sensor. The detection device of the utility model can complete the detection of the semi-free lifting height and the full free lifting height of the forklift mast, and can prevent equipment damage caused by squeezing, and has high safety.

[0004] When the existing forklift mast is in operation, it is necessary to move the fork frame at the front side to lift the cargo. During the lifting process, the moving height of the fork frame needs to be detected to improve the safety and stability of the forklift in operation. To this end, we propose an anti-collision forklift mast vertical height detection device to solve the above-mentioned problem. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide an anti-collision forklift mast vertical height detection device, which can solve the problem that when the existing forklift mast is in operation, it is necessary to move the fork frame on the front side to fork up the goods, and the moving height of the fork frame needs to be detected during the fork-lifting process, thereby improving the safety and stability of the forklift during operation.

[0007] In order to solve the above technical problems, the utility model provides an anti-collision forklift door frame vertical height detection device, adopting the following technical scheme: comprising a forklift body, a first support frame and a second support frame are provided on the front side of the forklift body from left to right in sequence, the first support frame and the second support frame, a first opening is opened on the side where the first support frame and the second support frame are close to each other, a first slider is provided in the inner cavity of the first support frame, a second slider is provided in the inner cavity of the second support frame, a cross frame is fixedly installed between the first slider and the second slider, and an infrared rangefinder is fixedly installed on the top of the cross frame.

[0008] Optionally, a connecting frame is fixedly installed between the first supporting frame and the second supporting frame, a metal sheet is fixedly installed at the bottom of the connecting frame, and the metal sheet is located directly above the infrared rangefinder.

[0009] By adopting the above technical solution, the present solution sets a metal sheet, which reflects infrared rays better. When the infrared rangefinder is started, the metal sheet can be used to measure the distance quickly and accurately.

[0010] Optionally, a first screw is rotatably connected between the top and bottom of the inner cavity of the first support frame, and a second screw is rotatably connected between the top and bottom of the inner cavity of the second support frame.

[0011] By adopting the above technical solution, in this solution, the first slider and the second slider are driven to move by the rotation of the first screw and the second screw.

[0012] Optionally, the first slider is threadedly movably connected to the surface of the first screw, and the second slider is threadedly movably connected to the surface of the second screw.

[0013] By adopting the above technical solution, in this solution, the first slider and the second slider are driven to move by the rotation of the first screw and the second screw.

[0014] Optionally, a second opening is provided on the front side of the first support frame and the second support frame, a fork frame is fixedly installed on the front side of the first slider and the second slider, two rubber sleeves are provided on the front end of the fork frame, and the fork frame passes through the corresponding second opening surface.

[0015] By adopting the above technical solution, the present solution opens a second opening. When the first slider and the second slider move, the fork frame on the front side passes through the second opening so that it can move up and down. A rubber sleeve is provided on the front end of the fork frame. When the fork frame collides with an object, the rubber sleeve can provide buffering protection.

[0016] Optionally, sprockets are fixedly mounted on the top ends of the first screw rod and the second screw rod, a chain is meshed between the two sprockets, and the chain is located in the inner cavity of the connecting frame.

[0017] By adopting the above technical solution, this solution provides sprockets at the top of the first screw and the second screw, and a chain is meshed between the two sprockets. When the first screw rotates, the second screw is driven to rotate simultaneously through the sprocket and the chain.

[0018] Optionally, a motor is fixedly mounted on the top of the first support frame, and the bottom output end of the motor is fixedly connected to the top of the first screw rod.

[0019] By adopting the above technical solution, the present solution provides a motor, and the motor starts to drive the first screw to rotate.

[0020] Optionally, a plurality of dampers are fixedly mounted on the inner wall of the rear side of the inner cavity of the forklift body, a connecting plate is fixedly mounted on the rear sides of the first support frame and the second support frame, and the connecting plate is fixedly mounted on the front sides of the plurality of dampers.

[0021] By adopting the above technical solution, the present solution provides a plurality of dampers in the inner cavity of the forklift body. When the fork frame collides, the rear damper can be used for buffering and shock absorption, thereby improving the anti-collision performance of the forklift body.

[0022] In summary, the utility model includes at least one of the following beneficial effects: 1. By setting a motor, the motor starts and drives the first screw to rotate. By providing a sprocket on the top of the first screw and the second screw, and providing a chain between the two sprockets to engage with each other, when the first screw rotates, the second screw is driven to rotate at the same time through the sprocket and the chain. The first screw and the second screw are rotated to drive the first slider and the second slider to move. The movement of the first slider and the second slider can drive the cross frame between them to move. When the cross frame moves, the infrared rangefinder and the metal sheet are used to perform rapid distance measurement operations, so that the infrared rangefinder can be used to perform accurate distance measurement operations as the fork frame moves, thereby achieving accurate measurement of the vertical height of the forklift door frame, and the utility model is highly practical.

[0023] 2. By arranging a rubber sleeve on the front end of the fork frame, when the fork frame collides with an object, the rubber sleeve can be used for buffering protection. By arranging multiple dampers in the inner cavity of the forklift body, when the fork frame collides, the rear damper can be used for buffering and shock absorption, thereby improving the anti-collision performance of the forklift body. The safety protection of the forklift mast can be achieved through the rubber sleeve and damper, the anti-collision ability is improved, the service life of the forklift mast is extended, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a bottom view schematic diagram of the overall structure of the utility model;

[0027] Figure 3 It is a top view cross-sectional schematic diagram of the overall structure of the utility model;

[0028] Figure 4 It is a right side cross-sectional schematic diagram of the overall structure of the utility model.

[0029] Explanation of the accompanying drawings: 1. forklift body; 2. first support frame; 3. second support frame; 4. first opening; 5. first slider; 6. second slider; 7. cross frame; 8. infrared rangefinder; 9. connecting frame; 10. metal sheet; 11. first screw; 12. second screw; 13. second opening; 14. fork frame; 15. rubber sleeve; 16. sprocket; 17. chain; 18. motor; 19. damper; 20. connecting plate. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 The utility model is described in further detail.

[0031] Embodiment 1, refer to Figure 1-4 In this embodiment, in order to solve the problem that when the existing forklift mast is in operation, the fork frame at the front side needs to be moved to fork up the goods, and the moving height of the fork frame needs to be detected during the fork-lifting process, thereby improving the safety and stability of the forklift in operation, the utility model discloses an anti-collision forklift mast vertical height detection device,

[0032] The forklift body 1 includes a first support frame 2 and a second support frame 3, which are arranged on the front side of the forklift body 1 from left to right. The first support frame 2 and the second support frame 3 are provided with a first opening 4 on the side where the first support frame 2 and the second support frame 3 are close to each other. A first slider 5 is provided in the inner cavity of the first support frame 2, and a second slider 6 is provided in the inner cavity of the second support frame 3. A cross frame 7 is fixedly installed between the first slider 5 and the second slider 6, and an infrared rangefinder 8 is fixedly installed on the top of the cross frame 7.

[0033] A connecting frame 9 is fixedly installed between the first supporting frame 2 and the second supporting frame 3 , and a metal sheet 10 is fixedly installed at the bottom of the connecting frame 9 . The metal sheet 10 is located directly above the infrared rangefinder 8 .

[0034] A first screw rod 11 is rotatably connected between the top and bottom of the inner cavity of the first support frame 2 , and a second screw rod 12 is rotatably connected between the top and bottom of the inner cavity of the second support frame 3 .

[0035] The first slider 5 is movably connected to the surface of the first screw rod 11 through a thread, and the second slider 6 is movably connected to the surface of the second screw rod 12 through a thread.

[0036] Sprocket wheels 16 are fixedly mounted on the top ends of the first screw rod 11 and the second screw rod 12 . A chain 17 is provided between the two sprocket wheels 16 to mesh with each other. The chain 17 is located in the inner cavity of the connecting frame 9 .

[0037] A motor 18 is fixedly mounted on the top of the first support frame 2 , and the bottom output end of the motor 18 is fixedly connected to the top of the first screw rod 11 .

[0038] The specific working principle is: the staff starts the motor 18, and the motor 18 starts to drive the first screw 11 to rotate. A sprocket 16 is provided at the top of the first screw 11 and the second screw 12, and a chain 17 is provided between the two sprockets 16 to engage with each other. When the first screw 11 rotates, the second screw 12 is driven to rotate at the same time through the sprocket 16 and the chain 17. The rotation of the first screw 11 and the second screw 12 drives the first slider 5 and the second slider 6 to move. The movement of the first slider 5 and the second slider 6 can drive the cross frame 7 therebetween to move. When the cross frame 7 moves, a rapid distance measurement operation is performed through the infrared rangefinder 8 and the metal sheet 10, and the infrared rangefinder 8 can be used to perform precise distance measurement operations as the fork frame 14 moves.

[0039] Example 2, refer to Figure 1-4 In this embodiment, in order to solve the problems of low anti-collision performance and short service life of existing forklifts, based on the same concept as the above-mentioned embodiment 1, the anti-collision type forklift mast vertical height detection device also includes:

[0040] A second opening 13 is provided on the front side of the first support frame 2 and the second support frame 3 , a fork frame 14 is fixedly installed on the front side of the first slider 5 and the second slider 6 , two rubber sleeves 15 are sleeved on the front end of the fork frame 14 , and the fork frame 14 passes through the corresponding surface of the second opening 13 .

[0041] A plurality of dampers 19 are fixedly mounted on the inner wall of the rear side of the inner cavity of the forklift body 1 , a connecting plate 20 is fixedly mounted on the rear sides of the first support frame 2 and the second support frame 3 , and the connecting plate 20 is fixedly mounted on the front sides of the plurality of dampers 19 .

[0042] The specific working principle is: by arranging a rubber sleeve 15 on the front end of the fork frame 14, when the fork frame 14 collides with an object, the rubber sleeve 15 can be used for buffering protection; by arranging a plurality of dampers 19 in the inner cavity of the forklift body 1, when the fork frame 14 collides, the rear damper 19 can be used for buffering and shock absorption, thereby improving the anti-collision performance of the forklift body 1, and the safety protection of the forklift mast is improved by the rubber sleeve 15 and the damper 19, thereby improving the anti-collision capability and extending the service life of the forklift mast.

[0043] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An anti-collision forklift mast vertical height detection device, comprising a forklift body (1), characterized in that: The front side of the forklift body (1) is provided with a first support frame (2) and a second support frame (3) in sequence from left to right. The first support frame (2) and the second support frame (3), a first opening (4) is provided on a side where the first support frame (2) and the second support frame (3) are close to each other. A first slider (5) is provided in the inner cavity of the first support frame (2), and a second slider (6) is provided in the inner cavity of the second support frame (3). A cross frame (7) is fixedly installed between the first slider (5) and the second slider (6), and an infrared rangefinder (8) is fixedly installed on the top of the cross frame (7).

2. The anti-collision forklift mast vertical height detection device according to claim 1, characterized in that: A connecting frame (9) is fixedly mounted between the first supporting frame (2) and the second supporting frame (3), a metal sheet (10) is fixedly mounted on the bottom of the connecting frame (9), and the metal sheet (10) is located directly above the infrared rangefinder (8).

3. The anti-collision forklift mast vertical height detection device according to claim 1, characterized in that: A first screw rod (11) is rotatably connected between the top and bottom of the inner cavity of the first support frame (2), and a second screw rod (12) is rotatably connected between the top and bottom of the inner cavity of the second support frame (3).

4. The anti-collision forklift mast vertical height detection device according to claim 1, characterized in that: The first slider (5) is threadedly movably connected to the surface of the first screw rod (11), and the second slider (6) is threadedly movably connected to the surface of the second screw rod (12).

5. The anti-collision forklift mast vertical height detection device according to claim 1, characterized in that: The first support frame (2) and the second support frame (3) are provided with a second opening (13) on the front side, the first slider (5) and the second slider (6) are fixedly mounted with a fork frame (14) on the front side, two rubber sleeves (15) are sleeved on the front end of the fork frame (14), and the fork frame (14) passes through the surface of the corresponding second opening (13).

6. The anti-collision forklift mast vertical height detection device according to claim 4, characterized in that: Sprockets (16) are fixedly mounted on the top ends of the first screw rod (11) and the second screw rod (12), and a chain (17) is provided between the two sprocket wheels (16) to mesh with each other, and the chain (17) is located in the inner cavity of the connecting frame (9).

7. The anti-collision forklift mast vertical height detection device according to claim 1, characterized in that: A motor (18) is fixedly mounted on the top of the first support frame (2), and the bottom output end of the motor (18) is fixedly connected to the top of the first screw rod (11).

8. The anti-collision forklift mast vertical height detection device according to claim 1, characterized in that: A plurality of dampers (19) are fixedly mounted on the inner wall of the rear side of the inner cavity of the forklift body (1), a connecting plate (20) is fixedly mounted on the rear side of the first support frame (2) and the second support frame (3), and the connecting plate (20) is fixedly mounted on the front side of the plurality of dampers (19).

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