Personnel detection protection alarm device in forklift walking process

Abstract

The utility model relates to the technical field of forklift safety, in particular to a personnel detection protection alarm device in the forklift walking process. According to the technical scheme, the forklift comprises a forklift arm, a movable box and a protection mechanism, a storage cavity is formed in the bottom of the forklift arm, the movable box is slidably installed in the storage cavity, a driving rod is fixedly installed between the movable box and the storage cavity, the protection mechanism is arranged on the inner side of the movable box, and the protection mechanism comprises a movable block, a second protection pad, a rack frame, a gear and a thrust spring. Through the combination of various structures, the device can extend out of the containing cavity by pushing the movable box, so that the protection mechanism automatically pops up to block the sharp position of the forklift arm, damage caused by collision is avoided, a dangerous area warning line can be irradiated on the ground through an infrared lamp belt, and the safety of the forklift arm is improved. Therefore, people can visually observe the dangerous area, and damage caused by collision to surrounding people and objects is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift safety, in particular to a personnel detection protection alarm device during the movement of a forklift. Background Art

[0002] As an important equipment in the field of industrial production and logistics, the safety of forklifts has always been a concern. During the operation of forklifts, personal injury accidents are prone to occur due to blind spots in vision, driver negligence and other reasons. It is necessary to warn and protect the surrounding personnel during the movement of the forklift to avoid safety hazards. At present, most solutions to forklift safety issues are to install alarm lights for prompts, which require the surrounding personnel to detect them by themselves. Since the front fork arm of the forklift is relatively sharp, the forklift cannot avoid in time when it encounters a person who is too close during the movement, which easily causes a collision between the person and the front fork arm of the forklift, increasing the safety hazard. Therefore, it is necessary to design a personnel detection and protection alarm device during the movement of the forklift. Utility Model Content

[0003] The utility model aims to provide a personnel detection protection alarm device during the travel of a forklift, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a personnel detection protection alarm device during the movement of a forklift, comprising a forklift arm, a movable box and a protection mechanism, a storage cavity is opened at the bottom of the forklift arm, a movable box is slidably installed inside the storage cavity, a driving rod is fixedly installed between the movable box and the storage cavity, a protection mechanism is arranged on the inner side of the movable box, the protection mechanism comprises a movable block, a second protection pad, a rack rack, a gear and a thrust spring, the movable block is slidably installed between the movable box, a rack rack is fixedly installed at the bottom of the movable block, a thrust spring is fixedly connected between the rack racks, gears are meshed between the rack racks, and the gears are rotationally connected to the movable box.

[0005] Preferably, a sloped cut edge is provided at the bottom of the forklift arm outside the storage cavity, an infrared light strip is fixedly mounted on the surface of the sloped cut edge, and an audible and visual alarm is fixedly mounted on the outside of the forklift arm, and the audible and visual alarm is electrically connected to the infrared light strip.

[0006] Preferably, one end of the forklift arm is fixedly connected with a distance sensor, and the distance sensor is electrically connected to the driving rod.

[0007] Preferably, the movable box is slidably mounted on the storage cavity via a movable groove, and limiting blocks are fixedly mounted on both sides of the movable box, and the limiting blocks are cooperatively connected with the movable groove.

[0008] Preferably, the protection mechanism further comprises a slide groove, and slide grooves are provided on both sides of the movable block, and the slide grooves are slidably mounted on the movable box via a slider.

[0009] Preferably, a first protective pad is fixedly mounted on one side of the movable box, and the first protective pad and the second protective pad are arc-shaped.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. By setting up a protective mechanism, when the distance sensor can sense that the forklift arm is close to the person, the driving rod can be triggered to start, and the movable box can be pushed to extend out of the storage cavity, so that the protective mechanism can be automatically popped out, and the first protective pad and the second protective pad can form an arc-shaped buffer area, which can block the sharp position of the forklift arm, and can effectively avoid the collision between the sharp position of the forklift arm and the person and cause injury, and effectively improve the safety effect of the forklift when it is moving.

[0012] 2. By setting up the slope cutting edge, the infrared light strip and the sound and light alarm cooperate with each other, the infrared light strip can be installed on the slope cutting edge. By utilizing the inclination angle of the slope cutting edge, the light emitted by the infrared light strip can be inclined outward, and a light strip can be illuminated on the ground to form a warning line for the dangerous area. This allows personnel to observe the dangerous area of ​​the forklift arm more intuitively to avoid people approaching. When people step into the dangerous area, the sound and light alarm can be triggered for a second warning, so that people can evacuate immediately and conveniently. At the same time, it can prompt the forklift driver to brake in time to avoid collision and damage to surrounding people and objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the first form structure of the utility model;

[0014] Figure 2 This is a structural diagram of the second form of the utility model;

[0015] Figure 3 This is a schematic diagram of the forklift arm structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the activity box of the utility model;

[0017] Figure 5 It is a schematic diagram of the structure of the protection mechanism of the utility model.

[0018] In the figure: 1. forklift arm; 101. storage cavity; 102. moving groove; 103. driving rod; 104. slope cutting edge; 2. movable box; 201. limit block; 202. first protection pad; 203. slider; 3. infrared light strip; 4. sound and light alarm; 5. distance sensor; 6. protection mechanism; 601. movable block; 602. slide groove; 603. second protection pad; 604. rack; 605. gear; 606. thrust spring. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Example

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the personnel detection protection alarm device during the movement of a forklift proposed by the utility model comprises a forklift arm 1, a movable box 2 and a protection mechanism 6. The forklift arm 1 is connected to the forklift body for use. A storage cavity 101 is provided at the bottom of the forklift arm 1. The movable box 2 is slidably installed inside the storage cavity 101. The movable box 2 is slidably installed between the movable box 2 and the storage cavity 101 through a moving groove 102. Limiting blocks 201 are fixedly installed on both sides of the movable box 2. The limiting blocks 201 are matched and connected with the moving groove 102, so that the limiting blocks 201 can be used to limit the movement of the movable box 2. The block 201 can slide in the moving groove 102, so that the movable box 2 can be horizontally moved in the storage chamber 101. A driving rod 103 is fixedly installed between the movable box 2 and the storage chamber 101. The driving rod 103 can be a hydraulic push rod or an electric push rod. The movable box 2 can be pushed to move by the extension of the driving rod 103, so that the movable box 2 can be easily extended out of the storage chamber 101, and the movable box 2 can be pulled into the storage chamber 101 for storage, which does not affect the normal use and operation of the forklift arm 1;

[0022] A protective mechanism 6 is provided on the inner side of the movable box 2, and the protective mechanism 6 includes a movable block 601, a second protective pad 603, a rack frame 604, a gear 605 and a thrust spring 606. The movable block 601 is slidably installed between the movable box 2, and a rack frame 604 is fixedly installed on the bottom of the movable block 601 by bolts. A thrust spring 606 is fixedly connected between the rack frames 604, and a gear 605 is meshed between the rack frames 604. The gear 605 is rotatably connected to the movable box 2 through a rotating shaft, and can extend the storage cavity 1 through the movable box 2. 01, the storage chamber 101 can release the limiting effect on the movable block 601, and the movable block 601 can be pushed to extend out of the movable box 2 through the elastic effect of the thrust spring 606. The protective mechanism 6 also includes a slide groove 602. The slide grooves 602 are opened on both sides of the movable block 601. The slide grooves 602 and the movable box 2 are slidably installed through the slider 203, so that the slider 203 can slide in the slide groove 602, which can limit the movable block 601, so that the movable block 601 can move vertically up and down, and it is not easy to be skewed;

[0023] The movable block 601 and the rack frame 604 are both in two groups, which are arranged in an upper and lower opposite manner. When the movable block 601 at the top moves upward, one of the rack frames 604 can be driven to move upward synchronously. Through the meshing action with the gear 605, the gear 605 can be driven to rotate clockwise. The rotation of the gear 605 can drive the rack frame 604 of the bottom group to move downward, so that the movable block 601 at the bottom can be moved downward synchronously, and the two groups of movable blocks 601 can extend the movable box 2 at the same time, which is convenient for the barrier protection of the sharp position of the forklift arm 1. A first protective pad 202 is fixedly installed on one side of the movable box 2. The first protective pad 202 and the second protective pad 603 are in the shape of an arc, which is extended by the movable block 601. When the forklift arm 1 is moved out, the arc of the second protection pad 603 and the arc of the first protection pad 202 can be aligned to form a flat arc shape, which can protect the personnel and objects in front and avoid the collision between the personnel and objects and the sharp end of the forklift arm 1, thereby improving the safety effect during walking. When the danger is eliminated, the movable box 2 can be extended into the storage chamber 101 by contraction of the driving rod 103. Through the slope on one side of the movable block 601, the edge position of the storage chamber 101 can be used to block the slope position of the movable block 601, so that the movable block 601 can be forced to move into the movable box 2, and the movable block 601 can be automatically stored in the movable box 2, and the movable box 2 can be smoothly pulled into the storage chamber 101 for storage;

[0024] One end of the forklift arm 1 is fixedly connected with a distance sensor 5, and the distance sensor 5 is connected to the driving rod 103 by telecommunication. The front end of the forklift arm 1 can be sensed by the distance sensor 5. When it is sensed that there is a person or an object too close in front, the driving rod 103 can be triggered to start, and the movable box 2 can be pushed by the driving rod 103 to extend out of the storage cavity 101, so as to conveniently and timely perform barrier protection on the front end of the forklift arm 1, which can play a role of active protection;

[0025] A sloped cutting edge 104 is provided at the bottom of the forklift arm 1 outside the storage cavity 101, and an infrared light strip 3 is fixedly installed on the surface of the sloped cutting edge 104. A sound and light alarm 4 is fixedly installed on the outside of the forklift arm 1, and the sound and light alarm 4 is electrically connected to the infrared light strip 3. The inclination angle of the sloped cutting edge 104 can be utilized to enable the infrared light strip 3 to irradiate inclined infrared light, so that the infrared light can project a light strip on the ground. The position of the light strip is outside the two sides of the forklift arm 1, and a danger zone warning line can be formed, so that personnel can observe the danger zone of the forklift arm 1 more intuitively to avoid personnel from approaching easily. When personnel step into the danger zone, the infrared light strip 3 can transmit a trigger signal to the sound and light alarm 4, and the sound and light alarm 4 is used for sound and light prompts, which can facilitate secondary warnings, so that personnel can immediately know to evacuate, and at the same time can prompt the forklift driver to observe in time and take measures such as braking to avoid collision and damage to surrounding personnel and objects.

[0026] The working principle of the personnel detection protection alarm device during the movement of the forklift according to the embodiment is as follows: the forklift arm 1 is connected to the forklift body for use, and the distance sensor 5 is used to sense the front of the forklift arm 1 during the movement of the forklift. When a person or object approaches, the distance sensor 5 can generate a sensing signal to the driving rod 103, and the driving rod 103 is triggered to start, so that the movable box 2 can be pushed to extend out of the storage cavity 101, so that the storage cavity 101 releases the limiting effect on the movable block 601, and the elastic force of the thrust spring 606 can be used to push the movable block 601 to extend out of the movable box 2, so that the arc shape of the second protection pad 603 and the first protection pad 202 can be overlapped and aligned, so that ... The protective pad 202 can form an arc-shaped protective structure for the front end of the forklift arm 1, which can effectively prevent the forklift arm 1 from colliding with the person and objects in front and causing injuries, thereby improving the safety effect. Through the inclined irradiation of the infrared light strip 3, a light strip representing the dangerous area can be projected on the ground, so that the surrounding people can more intuitively and promptly find the dangerous area, so that the people can stay away from it in time. When the surrounding people or objects enter the dangerous area, the infrared light strip 3 can transmit the trigger signal to the sound and light alarm 4, and the sound and light alarm 4 can be activated for sound and light prompts, which can facilitate secondary prompts to the surrounding people. At the same time, it can remind the forklift driver to pay attention to the distance between the surrounding people and objects in time, so that the driver can take safety measures in time.

[0027] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. Personnel detection protection alarm device during forklift movement, characterized by: The invention comprises a forklift arm (1), a movable box (2) and a protective mechanism (6), wherein a storage cavity (101) is provided at the bottom of the forklift arm (1), a movable box (2) is slidably installed inside the storage cavity (101), a driving rod (103) is fixedly installed between the movable box (2) and the storage cavity (101), a protective mechanism (6) is arranged on the inner side of the movable box (2), and the protective mechanism (6) comprises a movable block (601), a second protective pad (602), and a protective member (603). 03), a rack frame (604), a gear (605) and a thrust spring (606), the movable block (601) is slidably installed with the movable box (2), the bottom of the movable block (601) is fixedly installed with a rack frame (604), the rack frames (604) are fixedly connected with a thrust spring (606), the rack frames (604) are meshed with gears (605), and the gears (605) are rotationally connected with the movable box (2).

2. The personnel detection protection alarm device during forklift travel according to claim 1, characterized in that: The bottom of the forklift arm (1) outside the storage cavity (101) is provided with a sloped cut edge (104), an infrared light strip (3) is fixedly mounted on the surface of the sloped cut edge (104), and an audible and visual alarm (4) is fixedly mounted on the outside of the forklift arm (1), and the audible and visual alarm (4) is electrically connected to the infrared light strip (3).

3. The personnel detection protection alarm device during forklift movement according to claim 1 is characterized in that: One end of the forklift arm (1) is fixedly connected to a distance sensor (5), and the distance sensor (5) is electrically connected to the driving rod (103).

4. The personnel detection protection alarm device during forklift travel according to claim 1, characterized in that: The movable box (2) and the storage cavity (101) are slidably mounted via a movable groove (102), and limit blocks (201) are fixedly mounted on both sides of the movable box (2), and the limit blocks (201) are cooperatively connected with the movable groove (102).

5. The personnel detection protection alarm device during forklift travel according to claim 1, characterized in that: The protection mechanism (6) further comprises a slide groove (602). The slide grooves (602) are provided on both sides of the movable block (601). The slide grooves (602) and the movable box (2) are slidably mounted via a slider (203).

6. The personnel detection protection alarm device during forklift travel according to claim 1, characterized in that: A first protective pad (202) is fixedly mounted on one side of the movable box (2); the first protective pad (202) and the second protective pad (603) are arc-shaped.

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