Anti-collision device for fork head

Abstract

The utility model relates to the technical field of forklifts, in particular to a fork head anti-collision device which is characterized in that a fork front end plate is fixedly mounted at the end of a fork main frame, a mounting frame is fixedly mounted in the fork front end plate, and a telescopic sleeve and an Omron travel switch are fixedly mounted above the mounting frame; the rear-end telescopic rod is slidably arranged in the telescopic sleeve, a sliding groove is formed in one end of the rear-end telescopic rod, and a through groove is formed in the bottom of the rear-end telescopic rod; the front-end telescopic rod is arranged at the end, close to the sliding groove, of the rear-end telescopic rod, and a protection plate is arranged at the end, away from the rear-end telescopic rod, of the front-end telescopic rod. By arranging the protection plate and the Omron travel switch, after the pallet fork is inserted into the bottom of a cargo and the protection plate touches an obstacle and is extruded, the Omron travel switch is triggered through the telescopic rod at the rear end, so that the forklift is forcibly stopped, and collision accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to an anti-collision device for a fork head. Background Art

[0002] A fork is a device used for loading and unloading goods. Its main function is to be inserted under the goods so as to lift and move the goods. It is usually made of solid metal.

[0003] When in use, the existing forks are usually installed on logistics handling equipment such as forklifts. The forklifts are moved to drive the forks to be inserted into the bottom of the goods, thereby lifting the goods.

[0004] However, after the fork is inserted into the bottom of the cargo, the head of the fork will be difficult to observe, making it difficult for the operator to determine the position of the fork head. This may easily cause the fork head to collide with obstacles or other cargo, leading to a collision accident. Utility Model Content

[0005] The utility model aims to provide a fork head anti-collision device to solve the problems raised by the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fork head anti-collision device, comprising:

[0008] A fork main frame, a fork front end plate is fixedly installed at the end of the fork main frame, a mounting frame is fixedly installed inside the fork front end plate, a telescopic sleeve and an Omron travel switch are fixedly installed above the mounting frame, and a lower clamping block is arranged inside the telescopic sleeve;

[0009] A rear telescopic rod is slidably arranged inside the telescopic sleeve, a sliding groove is provided at one end of the rear telescopic rod, a through groove is provided at the bottom of the rear telescopic rod, and a clamping groove and a giving groove are provided on the side wall of the through groove;

[0010] The front end telescopic rod is arranged at one end of the rear end telescopic rod close to the slide groove, a protective plate is arranged at the end of the front end telescopic rod away from the rear end telescopic rod, and the end of the front end telescopic rod close to the rear end telescopic rod is fixedly connected with a sliding rod, and a flip plate and an upper clamping block are arranged on the surface of the sliding rod.

[0011] Preferably, a pressure plate is fixedly installed above the telescopic sleeve by bolts.

[0012] Preferably, the lower clamping block is a "convex"-shaped quick-install structure, the lower clamping block is slidably inserted into the side wall of the telescopic sleeve, and a second compression spring is arranged at the bottom of the lower clamping block.

[0013] Preferably, the upper surface of the rear end telescopic rod is set to be a plane, and the upper surface of the rear end telescopic rod is slidably arranged with the pressure plate, and one end of the rear end telescopic rod away from the end of the fork main frame abuts against the trigger end of the Omron travel switch.

[0014] Preferably, the slide groove is opened at one end of the rear telescopic rod away from the Omron travel switch, and a guide groove is opened on the inner wall of the slide groove. The slide groove is connected with the through groove, and the through groove is correspondingly arranged with the lower clamping block, and the lower clamping block is slidably arranged inside the give way groove.

[0015] Preferably, a second mounting hole is formed at one end of the front telescopic rod away from the rear telescopic rod, and an anti-rotation block is fixedly provided at one end of the front telescopic rod away from the rear telescopic rod.

[0016] Preferably, a first mounting hole and an anti-rotation hole are provided on the surface of the protective plate, the first mounting hole corresponds to the second mounting hole, the protective plate is sleeved on the surface of the anti-rotation block through the anti-rotation hole, a first compression spring is provided between the protective plate and the telescopic sleeve, and the first compression spring is sleeved on the surface of the front end telescopic rod.

[0017] Preferably, the slide rod is slidably inserted into the inside of the slide groove, a guide column is fixedly provided on the surface of the slide rod, the guide column is slidably provided inside the guide groove, a flip groove is opened on the surface of the slide rod, and the flip groove is correspondingly provided to the through groove.

[0018] Preferably, one end of the flip plate is rotatably mounted inside the flip groove, and the flip plate and the side wall of the through groove are slidably arranged.

[0019] Preferably, the upper clamping block is a "convex"-shaped block structure, the upper clamping block is slidably inserted into the interior of the slide rod, and the upper clamping block is slidably arranged with the side wall of the clamping slot.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model provides a protective plate and an Omron travel switch. When the fork is inserted into the bottom of the cargo, the protective plate touches the obstacle and is squeezed. The Omron travel switch is triggered through the rear end telescopic rod, thereby forcing the forklift to stop and avoiding the occurrence of collision accidents.

[0022] 2. The utility model arranges a front telescopic rod and a sliding rod between the rear telescopic rod and the protective plate. When the rear telescopic rod triggers the Omron travel switch to stop the forklift, the forklift will continue to move forward a certain distance due to inertia. At this time, the position of the sliding rod inside the slide groove is unlocked, so that the protective plate can continue to move toward the direction close to the fork main frame, thereby buffering the displacement of the forklift caused by inertia and avoiding the problem of damage to other goods caused by the forklift's displacement due to inertia. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1Schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 For the present utility model Figure 1 Schematic sectional view;

[0025] Figure 3 For the present utility model Figure 2 Enlarged schematic view at position A in the present utility model;

[0026] Figure 4 Schematic diagram of the protective plate structure of the present utility model;

[0027] Figure 5 Schematic diagram of the rear telescopic rod structure of the present utility model;

[0028] Figure 6 Schematic diagram of the front telescopic rod structure of the present utility model;

[0029] Figure 7 Schematic diagram of the lower clamping block structure of the present utility model;

[0030] Figure 8 Schematic diagram of the upper clamping block structure of the present utility model.

[0031] In the figure: forklift main frame 1, forklift front end plate 11, mounting frame 12, protective plate 2, first mounting hole 21, anti-rotation hole 22, front telescopic rod 3, anti-rotation block 31, second mounting hole 32, sliding rod 33, flipping groove 34, flipping plate 35, upper clamping block 36, guiding column 37, first compression spring 4, rear telescopic rod 5, sliding groove 51, through groove 52, clamping groove 53, relief groove 54, guiding groove 55, telescopic sleeve 6, lower clamping block 61, second compression spring 62, pressing plate 7, Omron travel switch 8. Detailed implementation manners

[0032] In order to more clearly illustrate the overall concept of the present utility model, the following will be further described in detail by way of examples in combination with the accompanying drawings of the specification.

[0033] It should be noted that many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0034] In addition, in the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0035] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. However, indicating a direct connection means that there is no connection relationship constructed through a transition structure between the two connected main bodies, and only a connection structure is used to connect them to form a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] Please refer to the attached Figure 1 to the attached Figure 8 As shown, the present utility model provides a forklift fork head anti-collision device, including:

[0038] The forklift fork main frame 1, the end of the forklift fork main frame 1 is fixedly installed with a forklift fork front end plate 11, the inside of the forklift fork front end plate 11 is fixedly installed with a mounting frame 12, above the mounting frame 12, a telescopic sleeve 6 and an Omron travel switch 8 are fixedly installed, above the telescopic sleeve 6, a pressing plate 7 is fixedly installed by bolts, inside the telescopic sleeve 6, a lower clamping block 61 is arranged, the lower clamping block 61 has a "convex" - shaped quick - installation structure, the lower clamping block 61 is slidably inserted into the side wall of the telescopic sleeve 6, and a second compression spring 62 is arranged at the bottom of the lower clamping block 61;

[0039] The rear telescopic rod 5 is slidably arranged inside the telescopic sleeve 6. The upper surface of the rear telescopic rod 5 is set as a plane, and the upper surface of the rear telescopic rod 5 is slidably arranged with the pressing plate 7. One end of the rear telescopic rod 5 far from the forklift truck main frame 1 abuts against the trigger end of the Omron travel switch 8. A chute 51 is opened at one end of the rear telescopic rod 5, and a through groove 52 is opened at the bottom of the rear telescopic rod 5. A clamping groove 53 and a relief groove 54 are opened on the side wall of the through groove 52. The chute 51 is opened at the end of the rear telescopic rod 5 far from the Omron travel switch 8. A guide groove 55 is opened on the inner wall of the chute 51. The chute 51 communicates with the through groove 52. The through groove 52 is correspondingly arranged with the lower clamping block 61. The lower clamping block 61 is slidably arranged inside the relief groove 54;

[0040] The front telescopic rod 3 is arranged at one end of the rear telescopic rod 5 close to the chute 51. A second mounting hole 32 is opened at one end of the front telescopic rod 3 far from the rear telescopic rod 5. And an anti-rotation block 31 is fixedly arranged at one end of the front telescopic rod 3 far from the rear telescopic rod 5. And a protective plate 2 is arranged at one end of the front telescopic rod 3 far from the rear telescopic rod 5. A first mounting hole 21 and an anti-rotation hole 22 are opened on the surface of the protective plate 2. The first mounting hole 21 corresponds to the second mounting hole 32. The protective plate 2 is sleeved on the surface of the anti-rotation block 31 through the anti-rotation hole 22. A first compression spring 4 is arranged between the protective plate 2 and the telescopic sleeve 6. The first compression spring 4 is sleeved on the surface of the front telescopic rod 3. One end of the front telescopic rod 3 close to the rear telescopic rod 5 is fixedly connected with a sliding rod 33. The sliding rod 33 is slidably inserted inside the chute 51. A guide post 37 is fixedly arranged on the surface of the sliding rod 33. The guide post 37 is slidably arranged inside the guide groove 55. A flipping groove 34 is opened on the surface of the sliding rod 33. The flipping groove 34 corresponds to the through groove 52. A flipping plate 35 and an upper clamping block 36 are arranged on the surface of the sliding rod 33. One end of the flipping plate 35 is rotatably installed inside the flipping groove 34. The flipping plate 35 is slidably arranged with the side wall of the through groove 52. The upper clamping block 36 is in a "convex" shaped block structure. The upper clamping block 36 is slidably inserted inside the sliding rod 33. The upper clamping block 36 is slidably arranged with the side wall of the clamping groove 53.

[0041] Embodiment 1:

[0042] An anti-collision device for the fork head proposed by the present utility model. When in use, the fork main frame 1 is installed in front of the forklift, and the forklift drives the fork main frame 1 to insert under the goods. When there are obstacles or other goods in front of the fork main frame 1, the protection plate 2 will touch the obstacles or other goods prior to the fork main frame 1. After being squeezed, the protection plate 2 drives the sliding rod 33 to move towards the rear telescopic rod 5 through the front telescopic rod 3 at the front end. At this time, the upper clamping block 36 is inserted into the internal of the clamping groove 53. Therefore, the sliding rod 33 drives the rear telescopic rod 5 to move towards the Omron travel switch 8 through the upper clamping block 36, squeezing the triggering end of the Omron travel switch 8, cutting off the power of the forklift through the Omron travel switch 8, and at the same time performing a braking operation on the forklift;

[0043] By setting the protection plate 2 and the Omron travel switch 8, after the fork is inserted to the bottom of the goods, when the protection plate 2 touches an obstacle and is squeezed, the rear telescopic rod 5 triggers the Omron travel switch 8, thereby stopping the forklift and avoiding the occurrence of collision accidents.

[0044] Embodiment Two:

[0045] On the basis of Embodiment One, when the rear telescopic rod 5 triggers the Omron travel switch 8, the clamping groove 53 is just aligned with the lower clamping block 61. Under the elastic force of the second compression spring 62, the lower clamping block 61 is inserted into the internal of the clamping groove 53, and the upper clamping block 36 is pushed into the internal of the sliding rod 33. At this time, under the action of the lower clamping block 61, the position of the rear telescopic rod 5 inside the telescopic sleeve 6 is locked, and at the same time, the sliding rod 33 can slide inside the sliding groove 51;

[0046] By arranging the front telescopic rod 3 and the sliding rod 33 between the rear telescopic rod 5 and the protection plate 2, after the rear telescopic rod 5 triggers the Omron travel switch 8 to stop the forklift, the forklift will continue to move forward a certain distance due to inertia. At this time, the position of the sliding rod 33 inside the sliding groove 51 is unlocked, so that the protection plate 2 can continue to move towards the fork main frame 1, buffering the displacement of the forklift due to inertia, and avoiding the problem of damage to other goods caused by the inertial displacement of the forklift.

[0047] Embodiment Three:

[0048] On the basis of the second embodiment, by providing a flip plate 35 and setting one side of the lower clamping block 61 as an inclined surface, after the protection plate 2 moves away from the obstacle, under the action of the first compression spring 4 rebounding, the sliding rod 33 moves in the chute 51 away from the rear telescopic rod 5. During this process, the bottom end of the flip plate 35 squeezes the inclined surface of the lower clamping block 61, causing the lower clamping block 61 to disengage from the inside of the card slot 53, thereby unlocking the position of the rear telescopic rod 5 inside the telescopic sleeve 6. When the flip plate 35 passes over the lower clamping block 61, the upper clamping block 36 is inserted into the inside of the card slot 53 under the action of gravity, locking the position of the sliding rod 33 inside the chute 51 and returning the protection plate 2 to its initial position.

[0049] Working principle: The main function of the forklift fork is to insert under the goods so as to lift the goods and move the goods. For a forklift fork head anti-collision device proposed by the present utility model, during use, the forklift fork main frame 1 is installed in front of the forklift truck, and the forklift truck drives the forklift fork main frame 1 to insert under the goods. When there is an obstacle or other goods in front of the forklift fork main frame 1, the protection plate 2 will touch the obstacle or other goods prior to the forklift fork main frame 1. After the protection plate 2 is squeezed, it drives the sliding rod 33 to move towards the rear telescopic rod 5 through the front telescopic rod 3. At this time, the upper clamping block 36 is inserted into the inside of the card slot 53. Therefore, the sliding rod 33 drives the rear telescopic rod 5 to move towards the trigger end of the Omron travel switch 8 through the upper clamping block 36, squeezing the trigger end of the Omron travel switch 8, cutting off the power of the forklift truck through the Omron travel switch 8, and simultaneously braking the forklift truck. When the rear telescopic rod 5 triggers the Omron travel switch 8, the card slot 53 is just aligned with the lower clamping block 61. Under the elastic force of the second compression spring 62, the lower clamping block 61 is inserted into the inside of the card slot 53 and pushes the upper clamping block 36 into the inside of the sliding rod 33. At this time, under the action of the lower clamping block 61, the position of the rear telescopic rod 5 inside the telescopic sleeve 6 is locked, and at the same time, the sliding rod 33 can slide inside the chute 51. After the protection plate 2 moves away from the obstacle, under the action of the first compression spring 4 rebounding, the sliding rod 33 moves in the chute 51 away from the rear telescopic rod 5. During this process, the bottom end of the flip plate 35 squeezes the inclined surface of the lower clamping block 61, causing the lower clamping block 61 to disengage from the inside of the card slot 53, thereby unlocking the position of the rear telescopic rod 5 inside the telescopic sleeve 6. When the flip plate 35 passes over the lower clamping block 61, the upper clamping block 36 is inserted into the inside of the card slot 53 under the action of gravity, locking the position of the sliding rod 33 inside the chute 51 and returning the protection plate 2 to its initial position.

[0050] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0051] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fork head anti-collision device, characterized in that: include: A fork main frame (1), a fork front end plate (11) is fixedly mounted on the end of the fork main frame (1), a mounting frame (12) is fixedly mounted inside the fork front end plate (11), a telescopic sleeve (6) and an Omron travel switch (8) are fixedly mounted above the mounting frame (12), and a lower clamping block (61) is arranged inside the telescopic sleeve (6); A rear telescopic rod (5), the rear telescopic rod (5) being slidably arranged inside the telescopic sleeve (6), a sliding groove (51) being provided at one end of the rear telescopic rod (5), a through groove (52) being provided at the bottom of the rear telescopic rod (5), and a clamping groove (53) and a clearance groove (54) being provided on the side wall of the through groove (52); A front telescopic rod (3), the front telescopic rod (3) is arranged at one end of the rear telescopic rod (5) close to the slide groove (51), the end of the front telescopic rod (3) away from the rear telescopic rod (5) is provided with a protective plate (2), the end of the front telescopic rod (3) close to the rear telescopic rod (5) is fixedly connected with a slide rod (33), and the surface of the slide rod (33) is provided with a flip plate (35) and an upper clamping block (36).

2. The fork head anti-collision device according to claim 1, characterized in that: A pressure plate (7) is fixedly mounted above the telescopic sleeve (6) by means of bolts.

3. The fork head anti-collision device according to claim 2, characterized in that: The lower clamping block (61) is in the form of a "convex" block structure. The lower clamping block (61) is slidably plugged into the side wall of the telescopic sleeve (6). A second compression spring (62) is provided at the bottom of the lower clamping block (61).

4. The fork head anti-collision device according to claim 3, characterized in that: The upper surface of the rear end telescopic rod (5) is arranged to be a plane, and the upper surface of the rear end telescopic rod (5) is arranged to slide with the pressure plate (7), and the end of the rear end telescopic rod (5) away from the end of the fork main frame (1) is in contact with the trigger end of the Omron travel switch (8).

5. The fork head anti-collision device according to claim 4, characterized in that: The slide groove (51) is provided at an end of the rear end telescopic rod (5) away from the Omron travel switch (8), and a guide groove (55) is provided on the inner wall of the slide groove (51). The slide groove (51) is connected with the through groove (52), and the through groove (52) is correspondingly arranged with the lower clamping block (61), and the lower clamping block (61) is slidably arranged inside the yielding groove (54).

6. The fork head anti-collision device according to claim 5, characterized in that: A second mounting hole (32) is provided at one end of the front telescopic rod (3) away from the rear telescopic rod (5), and an anti-rotation block (31) is fixedly provided at one end of the front telescopic rod (3) away from the rear telescopic rod (5).

7. The fork head anti-collision device according to claim 6, characterized in that: The surface of the protective plate (2) is provided with a first mounting hole (21) and an anti-rotation hole (22), the first mounting hole (21) corresponds to the second mounting hole (32), the protective plate (2) is sleeved on the surface of the anti-rotation block (31) through the anti-rotation hole (22), a first compression spring (4) is provided between the protective plate (2) and the telescopic sleeve (6), and the first compression spring (4) is sleeved on the surface of the front telescopic rod (3).

8. The fork head anti-collision device according to claim 7, characterized in that: The slide bar (33) is slidably inserted into the inside of the slide groove (51), a guide column (37) is fixedly arranged on the surface of the slide bar (33), and the guide column (37) is slidably arranged inside the guide groove (55), and a flip groove (34) is opened on the surface of the slide bar (33), and the flip groove (34) is arranged corresponding to the through groove (52).

9. The fork head anti-collision device according to claim 8, characterized in that: One end of the flip plate (35) is rotatably mounted inside the flip groove (34), and the flip plate (35) is slidably arranged with the side wall of the through groove (52).

10. The fork head anti-collision device according to claim 9, characterized in that: The upper clamping block (36) is in the form of a "convex" block structure. The upper clamping block (36) is slidably inserted into the interior of the slide rod (33). The upper clamping block (36) is slidably arranged with the side wall of the clamping slot (53).

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