Waist support for forklift and forklift
By setting a trigger block on the rotating shaft of the forklift waist guard and fixed distance sensors on the mounting frame, real-time judgment of the waist guard angle is achieved, the problem of easy damage to the angle sensor is solved, and the judgment accuracy and service life are improved.
Patent Information
- Application Number
- CN202421436944.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In the prior art, the angle sensor in the forklift waist guard is easily damaged, resulting in misjudgment and misjudgment.
A waist guard for a forklift is designed, and real-time determination of the waist guard angle is achieved by providing a first trigger block and a second trigger block on the rotating shaft, and fixedly providing a first distance sensor and a second distance sensor on the mounting frame.
This solution replaces the original angle sensor judgment method, extends the service life of the sensor, improves the accuracy of judgment, and avoids misjudgment and misjudgment.
Smart Images
Figure CN222770567U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of forklifts, in particular to a waist protector for forklifts and a forklift. Background Art
[0002] A forklift is a tool used to carry goods. The waist guard on the forklift plays a role in protecting the driver's safety, stabilizing the driver's posture during driving and preventing the driver from shaking too much and causing danger. In order to further improve the safety of the forklift during driving, it is necessary to associate the position of the waist guard with the driving state of the forklift. Based on this, it is necessary to determine the position of the waist guard in real time.
[0003] The existing method for determining the position of the waist protector is to set an angle sensor at the waist protector shaft, collect the angle of the waist protector shaft through the angle sensor, and then determine the position of the waist protector.
[0004] However, the angle sensor needs to rotate along with the rotation of the waist guard shaft. As the waist guard position changes constantly during daily use, the angle sensor is prone to damage, leading to misjudgment and missed judgment. Summary of the invention
[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a waist protector for a forklift and a forklift, so as to solve the problem that the angle sensor in the waist protector in the prior art is easily damaged.
[0006] The technical solution adopted by the utility model to solve the technical problem is a waist protector for a forklift, the forklift also includes a mounting frame, the waist protector includes a rotating shaft and hand guards arranged at both ends of the rotating shaft, and the rotating shaft is rotatably connected to the mounting frame;
[0007] The mounting frame is fixedly provided with a first distance sensor and a second distance sensor;
[0008] A first trigger block and a second trigger block are arranged on the rotating shaft, and the first trigger block and the second trigger block can rotate along with the rotating shaft, so that the first distance sensor is directly opposite to the rotating shaft or the first trigger block, or the second distance sensor is directly opposite to the rotating shaft or the second trigger block;
[0009] When the waist protector is facing upward, the first distance sensor is opposite to the first trigger block, and the second distance sensor is opposite to the rotation axis; when the waist protector is horizontal, the first distance sensor is opposite to the first trigger block, and the second distance sensor is opposite to the second trigger block; when the waist protector is facing downward, the first distance sensor is opposite to the rotation axis, and the second distance sensor is opposite to the second trigger block.
[0010] Furthermore, the first trigger block and the second trigger block are both fan rings with a central angle of 90°.
[0011] Further, the centers of the first trigger block and the second trigger block are located on the central axis of the rotating shaft.
[0012] Furthermore, the first distance sensor and the second distance sensor are arranged side by side on the mounting frame along the axial direction of the rotating shaft.
[0013] Further, the first trigger block and the second trigger block are arranged along the axial direction of the rotating shaft, the first trigger block and the second trigger block are arranged crosswise along the radial direction of the rotating shaft, and the projections of the first trigger block and the second trigger block on the cross section of the rotating shaft partially overlap.
[0014] Furthermore, a fan-shaped limiting protrusion is provided on the rotating shaft, and a limiting block is provided on the mounting frame; when the waist protector is downward, one end of the limiting protrusion abuts against the limiting block; when the waist protector is upward, the other end of the limiting protrusion abuts against the limiting block.
[0015] Further, a forklift is disclosed, including a waist protector for the forklift;
[0016] When the first distance sensor is directly opposite to the first trigger block and the second distance sensor is directly opposite to the rotating shaft, the forklift can travel at a first speed; when the first distance sensor is directly opposite to the first trigger block and the second distance sensor is directly opposite to the second trigger block, the forklift can travel at a second speed; when the first distance sensor is directly opposite to the rotating shaft and the second distance sensor is directly opposite to the second trigger block, the forklift is prohibited from traveling; wherein the second speed is greater than the first speed.
[0017] Compared with the prior art, the utility model has at least the following beneficial effects:
[0018] The first trigger block and the second trigger block rotate to different positions following the rotation of the waist protector, thereby triggering or not triggering the first distance sensor and the second distance sensor, so as to realize the upward, horizontal and downward angle determination of the waist protector, thereby replacing the original solution of determination by the angle sensor. At the same time, since the first distance sensor and the second distance sensor are fixedly arranged on the mounting frame and do not rotate with the rotating shaft, their service life is longer and the determination is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the waist protector and the mounting frame from the back side in the embodiment;
[0020] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0021] Figure 3 It is a schematic diagram of the structure of the waist protector and the mounting frame from the front view in the embodiment;
[0022] Figure 4 Schematic diagram of the structure of the first trigger block and the second trigger block in the embodiment;
[0023] In the figure:
[0024] 100, waist protector; 110, rotating shaft; 120, hand guard; 130, first trigger block; 140, second trigger block; 150, limiting protrusion;
[0025] 200, mounting frame; 210, first distance sensor; 220, second distance sensor; 230, limit block. DETAILED DESCRIPTION
[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0027] Please refer to Figure 1-Figure 4 The utility model discloses a waist protector for a forklift, the forklift further comprising a mounting frame 200, the waist protector 100 comprises a rotating shaft 110 and hand guards 120 arranged at both ends of the rotating shaft 110, the rotating shaft 110 is rotatably connected to the mounting frame 200;
[0028] The mounting frame 200 is fixedly provided with a first distance sensor 210 and a second distance sensor 220;
[0029] A first trigger block 130 and a second trigger block 140 are arranged on the rotating shaft 110, and the first trigger block 130 and the second trigger block 140 can rotate along with the rotating shaft 110, so that the first distance sensor 210 is directly opposite to the rotating shaft 110 or the first trigger block 130, or the second distance sensor 220 is directly opposite to the rotating shaft 110 or the second trigger block 140;
[0030] When the waist protector 100 is facing upward, the first distance sensor 210 is opposite to the first trigger block 130, and the second distance sensor 220 is opposite to the rotating shaft 110; when the waist protector 100 is horizontal, the first distance sensor 210 is opposite to the first trigger block 130, and the second distance sensor 220 is opposite to the second trigger block 140; when the waist protector 100 is facing downward, the first distance sensor 210 is opposite to the rotating shaft 110, and the second distance sensor 220 is opposite to the second trigger block 140.
[0031] Specifically, a first trigger block 130 and a second trigger block 140 are arranged on the rotating shaft 110, and a first distance sensor 210 and a second distance sensor 220 are arranged on the mounting frame 200. Since the first trigger block 130 and the second trigger block 140 are arranged on the peripheral wall of the rotating shaft 110, the first trigger block 130 and the second trigger block 140 are arranged to protrude from the peripheral wall of the rotating shaft 110. When the trigger block is directly in front of the distance sensor, the distance between the trigger block and the distance sensor is small, and the distance sensor can be triggered; when the trigger block is not directly in front of the distance sensor, the distance sensor is directly opposite to the peripheral wall of the rotating shaft 110, and the distance between the peripheral wall of the rotating shaft 110 and the distance sensor is large, and the distance sensor cannot be triggered. In this way, the first trigger block and the second trigger block rotate to different positions following the rotation of the waist protector 100, thereby triggering or not triggering the first distance sensor 210 and the second distance sensor 220, so as to realize the upward, horizontal and downward angle determination of the waist protector 100, so as to replace the original solution of determination by the angle sensor. At the same time, since the first distance sensor 210 and the second distance sensor 220 are fixedly arranged on the mounting frame 200 and do not rotate with the rotating shaft 110, their service life is longer and the determination is more accurate.
[0032] Furthermore, the first trigger block 130 and the second trigger block 140 are both sector rings with a central angle of 90°. The centers of the first trigger block 130 and the second trigger block 140 are located on the central axis of the rotating shaft 110 .
[0033] The first trigger block 130 and the second trigger block 140 are set to a 90° fan ring, and the center of the trigger block is on the axis of the rotating shaft 110, so that when the waist protector 100 rotates from the downward state to the horizontal state, the second trigger block 140 is always in front of the second distance sensor 220, and the minimum distance from the surface of the second trigger block 140 to the second distance sensor 220 is always equal, and the trigger state of the second distance sensor 220 is maintained. Similarly, when the waist protector 100 rotates from the horizontal state to the upward state, the first trigger block 130 is always in front of the first distance sensor 210, and the minimum distance from the surface of the first trigger block 130 to the first distance sensor 210 is always equal, and the trigger state of the first distance sensor 210 is maintained.
[0034] Furthermore, the first trigger block 130 and the second trigger block 140 are fixedly connected, which is convenient for processing and reduces costs.
[0035] Furthermore, the first distance sensor 210 and the second distance sensor 220 are arranged side by side on the mounting frame 200 along the axial direction of the rotating shaft 110 .
[0036] Further, the first trigger block 130 and the second trigger block 140 are arranged along the axial direction of the rotating shaft 110, the first trigger block 130 and the second trigger block 140 are cross-arranged along the radial direction of the rotating shaft 110, and the projections of the first trigger block and the second trigger block on the cross section of the rotating shaft 110 partially overlap.
[0037] Specifically, the first trigger block and the second trigger block have a partially overlapping area on the cross section of the rotating shaft 110, and the first trigger block and the second trigger block can respectively trigger the first distance sensor 210 and the second distance sensor 220 at the same time, thereby determining that the waist protector 100 is in a horizontal state.
[0038] Furthermore, a fan-shaped limiting protrusion 150 is provided on the rotating shaft 110, and a limiting block 230 is provided on the mounting frame 200; when the waist protector 100 is downward, one end of the limiting protrusion 150 abuts against the limiting block 230; when the waist protector 100 is upward, the other end of the limiting protrusion 150 abuts against the limiting block 230.
[0039] The limiting protrusion 150 and the limiting block 230 are provided to limit the rotation angle of the waist protector 100 to prevent the waist protector 100 from excessive rotation.
[0040] Furthermore, a forklift is disclosed, including a waist protector 100 for the forklift;
[0041] When the first distance sensor 210 is directly opposite to the first trigger block 130 and the second distance sensor 220 is directly opposite to the rotating shaft 110, the forklift can travel at a first speed; when the first distance sensor 210 is directly opposite to the first trigger block 130 and the second distance sensor 220 is directly opposite to the second trigger block 140, the forklift can travel at a second speed; when the first distance sensor 210 is directly opposite to the rotating shaft 110 and the second distance sensor 220 is directly opposite to the second trigger block 140, the forklift is prohibited from traveling; wherein, the second speed is greater than the first speed.
[0042] Specifically, when the waist protector 100 is facing downward, the forklift can travel at a slow speed; when the waist protector 100 is facing horizontally, the forklift can travel at a fast speed; and when the waist protector 100 is facing upward, the forklift cannot travel.
[0043] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0044] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0045] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0046] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
Claims
1. A waist protector for a forklift, the forklift further comprising a mounting frame, the waist protector comprising a rotating shaft and hand guards arranged at both ends of the rotating shaft, the rotating shaft and the mounting frame are rotatably connected, characterized in that: The mounting frame is fixedly provided with a first distance sensor and a second distance sensor; A first trigger block and a second trigger block are arranged on the rotating shaft, and the first trigger block and the second trigger block can rotate along with the rotating shaft, so that the first distance sensor is directly opposite to the rotating shaft or the first trigger block, or the second distance sensor is directly opposite to the rotating shaft or the second trigger block; When the waist protector faces upward, the first distance sensor is directly opposite to the first trigger block, and the second distance sensor is directly opposite to the rotation axis; When the waist protector is horizontal, the first distance sensor is opposite to the first trigger block, and the second distance sensor is opposite to the second trigger block; when the waist protector is facing downward, the first distance sensor is opposite to the rotation axis, and the second distance sensor is opposite to the second trigger block.
2. A waist protector for a forklift according to claim 1, characterized in that: The first trigger block and the second trigger block are both fan rings with a central angle of 90°.
3. A waist protector for a forklift according to claim 2, characterized in that: The centers of the first trigger block and the second trigger block are located on the central axis of the rotating shaft.
4. A waist protector for a forklift according to claim 3, characterized in that: The first distance sensor and the second distance sensor are arranged side by side on the mounting frame along the axial direction of the rotating shaft.
5. A waist protector for a forklift according to claim 4, characterized in that: The first trigger block and the second trigger block are arranged along the axial direction of the rotating shaft, the first trigger block and the second trigger block are arranged crosswise along the radial direction of the rotating shaft, and the projections of the first trigger block and the second trigger block on the cross section of the rotating shaft partially overlap.
6. A waist protector for a forklift according to claim 1, characterized in that: A fan-shaped limiting protrusion is also provided on the rotating shaft, and a limiting block is also provided on the mounting frame; when the waist protector is downward, one end of the limiting protrusion abuts against the limiting block; when the waist protector is upward, the other end of the limiting protrusion abuts against the limiting block.
7. A forklift, characterized in that: A waist protector for a forklift according to any one of claims 1 to 6; When the first distance sensor is directly opposite to the first trigger block and the second distance sensor is directly opposite to the rotating shaft, the forklift can travel at a first speed; when the first distance sensor is directly opposite to the first trigger block and the second distance sensor is directly opposite to the second trigger block, the forklift can travel at a second speed; when the first distance sensor is directly opposite to the rotating shaft and the second distance sensor is directly opposite to the second trigger block, the forklift is prohibited from traveling; wherein the second speed is greater than the first speed.