Tray contact type redundancy in-place detection device of bidirectional telescopic pallet fork

Abstract

The utility model discloses a tray contact type redundancy in-place detection device of a bidirectional telescopic pallet fork. The tray contact type redundancy in-place detection device comprises a bottom plate, a left contact plate, a right contact plate, a spring, a pin shaft, an induction type sensor and a contact type sensor. The two ends of the left contact plate and the two ends of the right contact plate are respectively provided with two sets of concentric round holes, one set of holes of the left contact plate and one set of holes of the right contact plate are hinged together through a pin shaft, the whole bottom plate is in a U shape, the two ends of the bottom plate are provided with through kidney-shaped grooves, and the other set of round holes of the left contact plate and the other set of round holes of the right contact plate can move in notches of the bottom plate through pin shafts. And a spring is connected between the two pin shafts for connecting the left contact plate, the right contact plate and the bottom plate to ensure that the pin shafts lean against the inner sides of the two waist-shaped notches of the bottom plate when the tray is not in place. The device is installed at the two ends of the outer side of the fork teeth of the bidirectional telescopic pallet fork and adjusted to the proper height, the left contact plate and the right contact plate can move towards the bottom plate side under extrusion of the pallet, feedback of the two in-place switches is triggered, and whether the pallet is in place or not can be detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to two -way telescopic fork technical field especially relates to a tray contact type redundancy in -place detection device of two -way telescopic fork. BACKGROUND

[0002] The existing two -way telescopic fork because the fork tooth exists two -way movement, so usually adopts the non -contact type proximity inductive type detection stretch fork in -place or not on the telescopic fork body, but whether stretch fork is normal to take tray and tray in -place also influence the stability and safety of equipment operation in the working process.

[0003] The existing related technology, there is the following defect: because the tray size is different, and there is often openwork structure on the tray, the conventional inductive sensing distance is small, and the bare photoelectric sensor is easily affected by dust or small sundries, and unlike the common forklift AGV, the two -way telescopic fork both sides can move, cannot directly set up in -place device at the root of the fork tooth and detect, and can only additionally set up laser or camera outside the fork mounting support to identify the tray and goods in -place, and the cost is higher to detect tray in -place, and the control system is relatively complex.

[0004] Therefore, the utility model provides a tray contact type redundancy in -place detection device of two -way telescopic fork. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that the two -way telescopic fork in the existing product is difficult to detect tray in -place, the utility model solves its technical problems by adopting the technical scheme of a tray contact type redundancy in -place detection device of two -way telescopic fork, which comprises a bottom plate, left contact plate, right contact plate, spring, pin shaft, inductive sensor, contact sensor. Left contact plate and right contact plate two ends have two groups of concentric round holes, one group of holes of left contact plate and right contact plate are hinged together through pin shaft, the bottom plate is U-shaped as a whole, and the two ends are provided with a waist -shaped slot penetrating through, and the other group of round holes of left contact plate and right contact plate can move in the slot opening of the bottom plate through pin shaft. A spring is connected between the two pin shafts for connecting left contact plate, right contact plate and bottom plate, which ensures that the pin shaft leans on the inner side of the two waist -shaped slot openings of the bottom plate in the tray non -in -place state. An inductive proximity sensor and an in -place sensor are arranged on the bottom plate left and right respectively, which are used for detecting the movement of left contact plate and right contact plate.

[0006] The bottom plate, left contact plate and right contact plate are usually metal plates, and can also be plastic materials with good strength

[0007] The aforementioned pin is made of metal, and the limiting structures at both ends ensure that there is no significant axial movement of the pin between the contact plate and the base plate. Additionally, a groove in the middle is used to hold the spring in place, preventing it from moving axially along the pin.

[0008] The beneficial effect of this utility model is that the positioning detection device of this utility model can move in two directions and contact the left and right contact plates of the pallet respectively. After the pallet and the goods come into contact, the contact plates move towards the bottom plate. The proximity sensor senses the movement of the contact plate on one side, and at the same time the contact position sensor senses the movement of the other contact plate. The two sets of signals are sent to the control system to realize redundant detection and feedback of pallet position. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0010] Figure 2 This utility model Figure 1 Another structural diagram from a different angle;

[0011] Figure 3 In this utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0012] Figure 4 This is a schematic diagram of the tray approaching and positioning detection device of this utility model;

[0013] Figure 5 A schematic diagram of the detection device for pressing the tray into place.

[0014] Legend: 1. Base plate; 2. Left contact plate; 3. Pin 1; 4. Right contact plate; 5. Pin 2; 6. Spring; 7. Contact-type position switch; 8. Photoelectric proximity sensor; 9. Tray. Detailed Implementation

[0015] Reference Figures 1-5 As shown, this utility model provides a technical solution: a pallet contact-type redundant positioning detection device for bidirectional telescopic forks, including a base plate 1, a left contact plate 2, a first pin 3, a right contact plate 4, a second pin 5, a spring 6, a contact-type positioning switch 7, and a photoelectric proximity sensor 8.

[0016] The following is a detailed explanation of its overall setup and function.

[0017] In this embodiment: the left contact plate 2 and the right contact plate 4 are hinged by pin shaft 1, the bottom plate 1 is provided with two pin shafts 2 and the holes of the un-hinged section of the left contact plate 2 and the right contact plate 4 are limited to move in the notches, a spring 6 is arranged between the two pin shafts 2 to make the two pin shafts 2 lean against the inner side of the two waist notches of the bottom plate 1 in the state that the tray is not in place, and the bottom plate is provided with a contact type in-place switch 7 and a photoelectric proximity sensor 8.

[0018] Specifically, the bottom plate 1 is in U-shaped structure and is made of metal or high-strength plastic, and two ends of the bottom plate 1 are respectively provided with a group of parallel and equal waist notches. The left contact plate 2 and the right contact plate 4 are in U-shaped structure and are made of metal or high-strength plastic. Two ends of the left contact plate 2 and the right contact plate 4 are respectively provided with a group of concentric and equal through holes, and the through holes are respectively arranged in the waist notches of the bottom plate 1 through the pin shafts 2. The two sides of the U-shaped structure can trigger the contact type in-place switch 7 and the photoelectric proximity sensor 8 after moving. The spring 6 is provided with hook-shaped structures at two ends, can be hooked on the pin shafts 2, and can meet the maximum displacement of the two pin shafts within the elastic range. The pin shafts 2 are basically provided with limiting structures at two ends to ensure that the pin shafts 2 can be clamped on the two sides of the bottom plate 1 without large axial shift, and the pin shafts 2 are respectively provided with a groove on the inner side of the left contact plate 2 and the right contact plate 4 to clamp the hook-shaped structures at two ends of the spring, so as to ensure that the spring 6 does not shake in the axial direction.

[0019] Working principle, the in-place detection device mainly includes the bottom plate 1, the left contact plate 2, the pin shaft 1, the right contact plate 4, the pin shaft 2, the spring 6, the contact type in-place switch 7, and the photoelectric proximity sensor 8; the bottom plate 1 is in U-shaped structure, and two ends of the bottom plate 1 are respectively provided with a group of parallel and coaxial waist notches, the left contact plate 2 and the right contact plate 4 are also in U-shaped structure, and two ends of the left contact plate 2 and the right contact plate 4 are respectively provided with a group of concentric through holes, one end of the left contact plate 2 and the right contact plate 4 is hinged by the pin shaft 1, the other end is connected to the waist notches of the bottom plate 1 through the pin shaft 2, the spring 6 is connected between the two pin shafts 2, and the bottom plate 1 is provided with the contact type in-place switch 7 and the photoelectric proximity sensor 8. As shown in Figure 1 and Figure 3 When the tray moves to the detection position from the right side, the bottom corner of the tray will contact the left contact plate 2 and continue to move forward, the left contact plate 2 will rotate downward with the pin shaft 2 as the center under the extrusion of the bottom corner of the tray, and the side edge of the left contact plate 2 will trigger the photoelectric switch installed on the side edge in the process of moving downward, at the same time, the right contact plate 4 moves rightward and downward, the side edge of the right contact plate 4 contacts the contact switch 7 and triggers. Figure 2 As shown in Figure 1 The movements of the two contact plates are opposite to the movement from left to right, but the triggering conditions are basically the same.

[0020] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled person in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

Claims

1. A two way telescopic fork's pallet contact type redundant in place detection device comprising a base plate (1), a left contact plate (2), a pin shaft one (3), a right contact plate (4), a pin shaft two (5), a spring (6), a contact type in place switch (7), an optical proximity sensor (8), characterized in that: The left contact plate (2) and the right contact plate (4) are hinged by a pin shaft (3), the bottom plate (1) is provided with two pin shafts (5) and the holes of the left contact plate (2) and the right contact plate (4) are limited to move in the notches of the bottom plate (1), a spring (6) is arranged between the two pin shafts (5) to make the two pin shafts (5) lean against the inner sides of the two waist notches of the bottom plate (1) in the state that the tray is not in place, and the bottom plate is provided with a contact type in-place switch (7) and a photoelectric proximity sensor (8).

2. The redundant positive stop detection device of claim 1, wherein, The whole structure of the bottom plate (1) is U-shaped, the material is metal or high-strength plastic, and the two ends are provided with a group of parallel and equal waist notches.

3. The redundant positive stop detection device of claim 1, wherein, The whole structure of the left contact plate (2) and the right contact plate (4) is U-shaped, the material is metal or high-strength plastic, and the two ends are provided with a group of concentric and equal through holes, which are respectively arranged in the waist notches of the bottom plate (1) through one pin shaft (5), and the two sides of the U-shaped structure can trigger the contact type in-place switch (7) and the photoelectric proximity sensor (8) after moving.

4. The redundant positive stop detection device of claim 1, wherein, The spring (6) is provided with a hook structure at both ends, which can be hooked on the pin shaft (5) and can meet the maximum displacement of the two pin shafts within the elastic range.

5. The redundant positive stop detection device of claim 1, wherein, The two ends of the pin shaft (5) are provided with a limiting structure to ensure that it can be clamped on the bottom plate (1) without axial movement, and a groove is arranged in the inner side of the left contact plate (2) and the right contact plate (4) to clamp the hook structure at both ends of the spring, so that the spring (6) does not shake in the axial direction.

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