Novel pallet piling car with adjustable pallet forks

Abstract

The utility model is applicable to the technical field of pallet piling cars, and provides a novel pallet piling car with adjustable forks, which comprises a car body, a guide frame fixedly mounted on the front side of the car body, a movable plate arranged on the front side of the guide frame, a connecting box fixedly connected to the front side of the movable plate, and two L-shaped forks arranged on the front side of the connecting box. The interior of the L-shaped pallet fork transverse plate is hollow, a pallet fork head is arranged on the side, away from the connecting box body, of the L-shaped pallet fork transverse plate, the side, close to the L-shaped pallet fork, of the pallet fork head penetrates into the L-shaped pallet fork transverse plate in a sliding mode, a first screw rod is arranged in the L-shaped pallet fork transverse plate, and a threaded groove is formed in the surface of the side, facing the first screw rod, of the pallet fork head; according to the device, the extending length of the pallet fork head can be adjusted, so that when a small pallet is carried, the problem that the pallet fork head extends out of the pallet too long and collides surrounding personnel or objects is solved, the pallet fork carries a plurality of pallets at the same time, and the using effect of the pallet piling car is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pallet stackers, and more specifically, to a novel pallet stacker with adjustable forks. Background Art

[0002] A pallet stacker is a small vehicle with a power transmission device and a power lifting device that can load, unload, transport, and stack pallets and palletized goods. It is a battery-powered stacker vehicle. It is suitable for operations in narrow passages and limited spaces and is an ideal tool for the warehousing and logistics industry.

[0003] After searching the existing public patent: CN210505442U, a pallet stacker with adjustable forks is disclosed. This prior art realizes the sliding of two fork rods in a slide groove by moving a first transmission plate and a second transmission plate, thereby adjusting the horizontal distance between the two fork rods.

[0004] However, the inventor found that the prior art has the following problems: although the prior art can adjust the distance between the two forks, it cannot adjust the position of the fork head. Since the existing pallets are of different sizes, when transporting a smaller pallet, the fork head will be extended to a longer length. Since the fork head is at a lower position, the operator cannot see the specific position of the fork head. As a result, the longer fork head is likely to collide with surrounding personnel or objects during the transport of the pallet, reducing the safety of the pallet stacker when in use. In response to the above problems, the inventor has designed a new type of pallet stacker with an adjustable fork. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a new type of pallet stacker with adjustable forks, which can transport smaller pallets without the problem of the fork head extending too far from the pallet and causing collisions with surrounding people or objects. At the same time, the fork can transport multiple pallets at the same time, further improving the use effect of the pallet stacker.

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

[0007] A new type of pallet stacker with adjustable forks comprises a vehicle body, a guide frame is fixedly installed on the front of the vehicle body, a movable plate body is arranged on the front of the guide frame, a connecting box body is fixedly connected to the front of the movable plate body, two L-shaped forks are arranged on the front of the connecting box body, the L-shaped fork cross plate is hollow inside, a fork head is arranged on the side of the L-shaped fork cross plate away from the connecting box body, the fork head slides into the L-shaped fork cross plate on the side close to the L-shaped fork, a first screw is arranged in the L-shaped fork cross plate, a thread groove is arranged on the surface of the side of the fork head facing the first screw, and the fork head is threadedly sleeved on the first screw through the thread groove The other end of the first screw rotates and passes through the horizontal plate of the L-shaped fork. Two first sliding grooves that are connected to the interior of the L-shaped fork are provided on the front of the connecting box. One end of the first screw located outside the L-shaped fork extends into the connecting box through the first sliding groove. One end of the first screw located in the connecting box is fixedly connected to a worm gear. The bottom of the worm gear is meshed and connected to a worm. A first motor is fixedly connected to the side of the connecting box. The output shaft of the first motor rotates and passes through the connecting box. A transmission shaft is fixedly connected to the output shaft of the first motor. The other end of the transmission shaft is rotatably connected to the inner wall of the connecting box, and the worm is sleeved on the transmission shaft.

[0008] The utility model is further configured as follows: two second slide grooves are provided on the front of the connecting box body close to the two L-shaped forks, both of which are connected to the interior thereof; an adjusting slider is fixedly connected to the back side of the L-shaped fork riser; the other side of the adjusting slider extends into the connecting box body through the second slide groove and slides in the second slide groove.

[0009] The utility model is further configured as follows: a second motor is fixedly mounted on the upper surface of the connecting box body, the lower end of the second motor output shaft rotates and penetrates into the connecting box body, the lower end of the second motor output shaft is fixedly connected to a second screw rod, and the lower end of the second screw rod is rotatably connected to the bottom wall of the connecting box body.

[0010] The utility model is further configured as follows: a threaded sleeve is threadedly sleeved on the outer surface of the second screw rod, and a rotating plate is hingedly connected between the outer surface of the threaded sleeve and one side of the adjusting slider connected to the box body.

[0011] The utility model is further configured as follows: a limiting slide bar is fixedly connected between the inner walls on both sides opposite to each other of the second slide groove, and the adjusting slide block is slidably sleeved on the limiting slide bar.

[0012] The utility model is further configured as follows: a supporting slider is fixedly connected to the upper surface of the fork head, the upper surface of the supporting slider is flush with the upper surface of the L-shaped fork cross plate, the upper surface of the L-shaped fork cross plate is provided with a movable slide groove connected to its interior, the movable slide groove extends out of the front side of the L-shaped fork cross plate, and the supporting slider slides in the movable slide groove.

[0013] The utility model is further configured as follows: a sleeve hole is opened on the worm, and the worm is slidably sleeved on the outer surface of the transmission shaft through the sleeve hole.

[0014] The utility model is further configured as follows: a limiting slider is fixedly connected to the outer surface of the transmission shaft close to the worm, a limiting slide groove is opened on the inner wall of the sleeve hole, and the limiting slide grooves extend from the opposite two side surfaces of the worm respectively, and the limiting slider slides in the limiting slide groove.

[0015] The advantages of the utility model are as follows: the utility model can adjust the extension length of the fork head, so when transporting a smaller pallet, the fork head will not extend too long from the pallet to cause collision with surrounding personnel or objects. At the same time, because the fork head can be extended, the fork can transport multiple pallets at the same time, further improving the use effect of the pallet stacker. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a new type of pallet stacker with adjustable forks according to the utility model;

[0017] Figure 2 It is a top plan view of the fork head driving structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the worm connection structure of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the connection box of the utility model.

[0020] In the figure: 1. vehicle body; 2. guide frame; 3. movable plate body; 4. connecting box body; 5. L-shaped fork; 6. fork head; 7. supporting slider; 8. movable slide; 9. first slide; 10. first motor; 11. first screw; 12. thread groove; 13. worm gear; 14. worm; 15. transmission shaft; 16. sleeve hole; 17. limiting slider; 18. limiting slide; 19. second motor; 20. second screw; 21. second slide; 22. adjusting slider; 23. threaded sleeve; 24. rotating plate; 25. limiting slide. DETAILED DESCRIPTION

[0021] See also Figure 1-4 , the utility model provides the following technical solutions:

[0022] Specifically, it refers to a new type of pallet stacker with adjustable forks, including a body 1, a guide frame 2 is fixedly installed on the front of the body 1, a movable plate body 3 is arranged on the front of the guide frame 2, a connecting box body 4 is fixedly connected to the front of the movable plate body 3, two L-shaped forks 5 are arranged on the front of the connecting box body 4, two second slide grooves 21 are opened on the front of the connecting box body 4 near the two L-shaped forks 5, and the back of the vertical plate of the L-shaped fork 5 is fixedly connected to an adjusting slider 22, and the other side of the adjusting slider 22 is connected to the second slide groove 21. The second motor 19 is fixedly mounted on the upper surface of the connecting box 4, and the lower end of the output shaft of the second motor 19 rotates and penetrates into the connecting box 4. The lower end of the output shaft of the second motor 19 is fixedly connected with a second screw rod 20, and the lower end of the second screw rod 20 is rotatably connected to the bottom wall of the connecting box 4. The outer surface of the second screw rod 20 is threadedly sleeved with a threaded sleeve 23, and a rotating plate 24 is hinged between the outer surface of the threaded sleeve 23 and the adjusting slider 22 located on one side of the connecting box 4;

[0023] When it is necessary to adjust the distance between the two L-shaped forks 5, the second motor 19 is started, and the output shaft of the second motor 19 synchronously drives the second screw 20 to rotate. At this time, the threaded sleeve 23 can be displaced upward or downward under the transmission of the thread of the second screw 20. When the threaded sleeve 23 is displaced downward, the threaded sleeve 23 will squeeze the rotating plate 24, so that the rotating plate 24 will form a thrust on the adjusting slider 22, so that the two L-shaped forks 5 are displaced in opposite directions. When the threaded sleeve 23 is displaced upward, the threaded sleeve 23 will pull the rotating plate 24, so that the rotating plate 24 will form a pulling force on the adjusting slider 22, so that the two L-shaped forks 5 are displaced in relative directions. The above structure can achieve the purpose of adjusting the lateral distance between the two forks, increase the stability of cargo placement, and facilitate use.

[0024] Specifically, a limiting slide bar 25 is fixedly connected between the inner walls on both sides of the second slide groove 21, and the adjusting slider 22 is slidably sleeved on the limiting slide bar 25. Therefore, the adjusting slider 22 is limited by the limiting slide bar 25, and the problem of tilting of the adjusting slider 22 when sliding is avoided as much as possible.

[0025] The fork head 6 is provided with a fork head 6 on the side of the L-shaped fork 5 away from the connection box 4, and the fork head 6 slides into the L-shaped fork 5 on the side close to the L-shaped fork 5. The upper surface of the fork head 6 is fixedly connected with a supporting slider 7, and the upper surface of the supporting slider 7 is flush with the upper surface of the L-shaped fork 5. The upper surface of the L-shaped fork 5 is provided with a movable slide groove 8 connected with the interior thereof, and the movable slide groove 8 extends out of the front side of the L-shaped fork 5. The supporting slider 7 slides in the movable slide groove 8. Therefore, when the fork is inserted into the pallet, since the upper surface of the supporting slider 7 is flush with the upper surface of the L-shaped fork 5, the L-shaped fork 5 and the supporting slider 7 can both contact with the top wall of the pallet slot, thereby avoiding the problem that the top of the fork head 6 cannot form an effective support for the pallet, resulting in tilting of the pallet during transportation, and further ensuring the use effect of the fork.

[0026] Specifically, a first screw 11 is provided in the transverse plate of the L-shaped fork 5, and a thread groove 12 is provided on the surface of the side of the fork head 6 facing the first screw 11. The fork head 6 is threadedly sleeved on the first screw 11 through the thread groove 12, and the other end of the first screw 11 rotates to pass through the transverse plate of the L-shaped fork 5. Two first slide grooves 9 are provided on the front of the connecting box 4, both of which are connected to the interior thereof. One end of the first screw 11 located outside the L-shaped fork 5 extends into the connecting box 4 through the first slide groove 9, and one end of the first screw 11 located in the connecting box 4 is fixedly connected to a worm gear 13, and the bottom of the worm gear 13 is meshedly connected to a worm 14. A first motor 10 is fixedly connected to the side of the connecting box 4, and the output shaft of the first motor 10 rotates and passes through the connecting box 4. A transmission shaft 15 is fixedly connected to the output shaft of the first motor 10, and the other end of the transmission shaft 15 is rotationally connected to the inner wall of the connecting box 4, and the worm 14 is sleeved on the transmission shaft 15;

[0027] When in use, the first motor 10 is started, and the output shaft of the first motor 10 drives the transmission shaft 15 to rotate, and the worm 14 will rotate synchronously with the transmission shaft 15. At this time, the worm 14 can engage the transmission worm wheel 13 to rotate, and the first screw 11 will rotate with the worm wheel 13. Since the fork head 6 is restricted by the inner wall of the cross plate of the L-shaped fork 5, it is displaced under the transmission of the thread groove 12, so that the fork head 6 can be retracted into the L-shaped fork 5 or extended out of the outside of the L-shaped fork 5, thereby achieving the purpose of adjusting the extension length of the fork head 6. Therefore, when transporting smaller pallets, the fork head 6 will not extend too long from the pallet to cause collision with surrounding people or objects. At the same time, since the fork head 6 can be extended, the fork can transport multiple pallets at the same time, further improving the use effect of the pallet stacker.

[0028] Specifically, a sleeve hole 16 is formed on the worm 14, and the worm 14 is slidably sleeved on the outer surface of the transmission shaft 15 through the sleeve hole 16. A limiting slider 17 is fixedly connected to the outer surface of the transmission shaft 15 close to the worm 14. A limiting slide groove 18 is formed on the inner wall of the sleeve hole 16, and the limiting slide grooves 18 extend from the opposite two side surfaces of the worm 14 respectively, and the limiting slider 17 slides in the limiting slide groove 18;

[0029] When the two L-shaped forks 5 are adjusting the horizontal distance in the lateral direction, since the worm wheel 13 and the worm 14 are self-locking, the worm wheel 13 can drive the worm 14 to slide on the transmission shaft 15, and the problem of the L-shaped fork 5 being stuck will not occur. At the same time, due to the setting of the limiting slider 17 and the limiting groove 18, when the transmission shaft 15 rotates, the worm 14 will rotate synchronously with the transmission shaft 15, further ensuring the stability of the device during operation.

[0030] The working principle of the new pallet stacker with adjustable fork provided by the utility model is as follows: when in use, the first motor 10 is started, and the output shaft of the first motor 10 drives the transmission shaft 15 to rotate. Due to the setting of the limiting slider 17 and the limiting slide groove 18, the worm 14 will rotate synchronously with the transmission shaft 15. At this time, the worm 14 can engage the transmission worm wheel 13 to rotate, and the first screw 11 will rotate with the worm wheel 13. Since the fork head 6 is restricted by the inner wall of the cross plate of the L-shaped fork 5, it is displaced under the transmission of the thread groove 12, so that the fork head 6 can be retracted into the L-shaped fork 5 or extended out of the outside of the L-shaped fork 5.

Claims

1. A new type of pallet stacker with adjustable forks, comprising a body (1), a guide frame (2) fixedly mounted on the front of the body (1), a movable plate (3) provided on the front of the guide frame (2), a connecting box (4) fixedly connected to the front of the movable plate (3), and two L-shaped forks (5) provided on the front of the connecting box (4), characterized in that: The interior of the L-shaped fork (5) transverse plate is hollow. A fork head (6) is provided on the side of the L-shaped fork (5) transverse plate away from the connecting box (4). The side of the fork head (6) close to the L-shaped fork (5) slides into the L-shaped fork (5) transverse plate. A first screw (11) is provided in the L-shaped fork (5) transverse plate. A thread groove (12) is provided on the surface of the fork head (6) facing the first screw (11). The fork head (6) is threadedly sleeved on the first screw (11) through the thread groove (12). The other end of the first screw (11) rotates to pass through the transverse plate of the L-shaped fork (5). Two first sliding holes are provided on the front of the connecting box (4), both of which are connected to the interior of the connecting box. A first screw rod (11) is provided on the side of the L-shaped fork (5), one end of the first screw rod (11) located outside the L-shaped fork (5) extends into the connecting box (4) through the first sliding groove (9), one end of the first screw rod (11) located inside the connecting box (4) is fixedly connected to a worm wheel (13), the bottom of the worm wheel (13) is meshingly connected to a worm (14), a first motor (10) is fixedly connected to the side of the connecting box (4), an output shaft of the first motor (10) rotates and penetrates into the connecting box (4), a transmission shaft (15) is fixedly connected to the output shaft of the first motor (10), the other end of the transmission shaft (15) is rotationally connected to the inner wall of the connecting box (4), and the worm (14) is sleeved on the transmission shaft (15).

2. The novel pallet stacker with adjustable forks according to claim 1 is characterized by: The connecting box (4) is provided with two second slide grooves (21) on the front side close to the two L-shaped forks (5) and both are connected to the interior thereof; an adjusting slider (22) is fixedly connected to the back side of the vertical plate of the L-shaped fork (5); the other side of the adjusting slider (22) extends into the connecting box (4) through the second slide groove (21) and slides in the second slide groove (21).

3. The novel pallet stacker with adjustable forks according to claim 2 is characterized by: A second motor (19) is fixedly mounted on the upper surface of the connecting box (4); the lower end of the output shaft of the second motor (19) rotates and penetrates into the connecting box (4); the lower end of the output shaft of the second motor (19) is fixedly connected to a second screw rod (20); the lower end of the second screw rod (20) is rotatably connected to the bottom wall of the connecting box (4).

4. The novel pallet stacker with adjustable forks according to claim 3 is characterized by: The outer surface of the second screw rod (20) is threadedly sleeved with a threaded sleeve (23), and a rotating plate (24) is hingedly connected between the outer surface of the threaded sleeve (23) and one side of the adjusting slider (22) connected to the box body (4).

5. The novel pallet stacker with adjustable forks according to claim 4 is characterized by: A limiting slide bar (25) is fixedly connected between the inner walls on both sides opposite to each other of the second slide groove (21), and the adjusting slide block (22) is slidably sleeved on the limiting slide bar (25).

6. The novel pallet stacker with adjustable forks according to claim 1 is characterized by: The upper surface of the fork head (6) is fixedly connected with a support slider (7), the upper surface of the support slider (7) is flush with the upper surface of the L-shaped fork (5) transverse plate, the upper surface of the L-shaped fork (5) transverse plate is provided with a movable slide groove (8) connected with the interior thereof, the movable slide groove (8) extends out of the front side of the L-shaped fork (5) transverse plate, and the support slider (7) slides in the movable slide groove (8).

7. The novel pallet stacker with adjustable forks according to claim 6 is characterized by: The worm (14) is provided with a sleeve hole (16), and the worm (14) is slidably sleeved on the outer surface of the transmission shaft (15) through the sleeve hole (16).

8. The novel pallet stacker with adjustable forks according to claim 7 is characterized by: A limiting slide block (17) is fixedly connected to the outer surface of the transmission shaft (15) near the worm (14), and a limiting slide groove (18) is opened on the inner wall of the sleeve hole (16). The limiting slide groove (18) extends from two opposite side surfaces of the worm (14) respectively, and the limiting slide block (17) slides in the limiting slide groove (18).

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