Electric carrier

Abstract

The electric carrying vehicle comprises a vehicle body with idler wheels arranged at the bottom, a pallet fork connected to the front end of the vehicle body in a lifting mode and bearing wheels arranged at the front end of the pallet fork, lateral supporting mechanisms are arranged on the two sides of the vehicle body, each lateral supporting mechanism comprises a supporting seat, a sliding groove, a sliding block and a guide plate, the supporting seats are in a long strip shape extending in the vertical direction, and the sliding grooves are formed in the supporting seats. The supporting seat is detachably fixed to the side wall of a vehicle body, the sliding groove is formed in the middle of the supporting seat and extends in the vertical direction, the sliding block is embedded in the sliding groove in a vertical sliding mode, the guide plate is located on the outer side of the supporting seat, the upper end of the guide plate is connected with the sliding block, and the rotatable auxiliary wheel is arranged at the lower end of the guide plate. The lateral supporting mechanism further comprises a driving assembly used for driving the sliding block to slide up and down, when the driving assembly acts, the sliding block can be driven to slide downwards, the guide plate can move downwards, accordingly, the auxiliary wheels are supported on the supporting face, lateral supporting is formed for the truck body, and the electric truck is not prone to side tipping and good in use safety.

Description

Technical Field

[0001] The utility model relates to the technical field of transport vehicles, in particular to an electric transport vehicle. Background Art

[0002] To facilitate transportation, products are usually stacked on pallets for transportation after production. Pallet trucks are important equipment for transporting pallets. Since the transportation locations of stacked products mostly involve warehouses, in order to avoid air pollution, existing pallet trucks have gradually been electrified. For example, Chinese patents CN219585779U, CN215854923U, and CN219567472U disclose such electric pallet trucks. Most of these electric pallet trucks are supported by the load-bearing wheels at the front end of the fork and the rollers at the bottom of the vehicle body. When transporting goods, the load-bearing wheels are supported on the ground and can cooperate with the rollers to ensure stability during movement. However, when stacking, the forks are raised and the load-bearing wheels are suspended, which will reduce the stability of the pallet truck and make it easy to tip over, posing a safety hazard. Utility Model Content

[0003] The utility model aims to solve the problems of the prior art and provide an electric transport vehicle which is not prone to tilting and has good safety in use.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is that the electric transport vehicle comprises:

[0005] A vehicle body, wherein rollers are provided at the bottom of the vehicle body;

[0006] A cargo fork, the cargo fork being liftably connected to the front end of the vehicle body;

[0007] A load-bearing wheel, the load-bearing wheel being arranged at the front end of the fork;

[0008] The lateral support mechanism for providing lateral support force is provided on both sides of the vehicle body, and the lateral support mechanism includes a support seat, a slide groove, a slider, a guide plate, and an auxiliary wheel. The support seat is in the shape of a long strip extending in the up-down direction. The support seat is detachably fixed to the side wall of the vehicle body, the slide groove is arranged in the middle of the support seat and extends in the up-down direction, the slider can be slidably embedded in the slide groove, the guide plate is located at the outer side of the support seat, the upper end of the guide plate is connected to the slider, and the auxiliary wheel is rotatably arranged on the lower end of the guide plate. The lateral support mechanism also includes a driving component for driving the slider to slide up and down. When the driving component is actuated, it can drive the slider to slide downward, so that the guide plate moves downward, so that the auxiliary wheel is supported on the support surface to form lateral support for the vehicle body.

[0009] Preferably, the support seat is arranged close to the front end surface of the vehicle body.

[0010] Preferably, the slide groove penetrates the support seat in the left-right direction, the groove edge of the slide groove protrudes outward to form a boss, and the outer side surface of the sliding block is flush with the end surface of the boss or protrudes from the boss.

[0011] Further preferably, the front and rear ends of the guide plate are vertically folded toward the direction where the support seat is located to form a rib clamped between the front and rear sides of the boss, and the rib is spaced apart from the boss.

[0012] Further preferably, the lateral support mechanism also includes a proximity switch for detecting the position of the auxiliary wheel, wherein the proximity switch is connected to the outer wall of the support seat and is located between the boss and the retaining edge, and the proximity switch is triggered when the upper end of the guide plate moves upward to cover the proximity switch.

[0013] Preferably, a positioning pin protruding outward is provided in the middle of the outer side surface of the slider, and threaded holes for locking the guide plate are provided around the positioning pin. The upper end of the guide plate is provided with a positioning hole matching the positioning pin and a bolt hole corresponding to the threaded hole.

[0014] Preferably, the lower end of the guide plate is gradually retracted to form a support ear, and the axle of the auxiliary wheel is rotatably connected to the support ear, and the rotation axis of the axle extends horizontally in the left-right direction.

[0015] Preferably, the driving assembly includes a motor, a screw rod and a nut, the motor is connected to the top of the support seat, the output shaft of the motor downwardly penetrates the top plate of the support seat, the screw rod extends in the up and down directions, the upper end of the screw rod is located in the slide groove and is connected to the motor output shaft, the lower end of the screw rod penetrates the bottom plate of the support seat and is rotatably connected to the bottom plate, the nut is penetrated in the middle of the slider and fixedly connected to the slider, and the nut is also sleeved on the screw rod.

[0016] Further preferably, the driving assembly also includes a driver and a brake connected to the top of the motor in sequence from top to bottom.

[0017] Preferably, the lateral support mechanism further comprises an outer cover shell, which is connected to the side of the vehicle body and covers the drive assembly, the support seat and the upper end of the guide plate.

[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0019] The lateral support mechanism comprises a supporting seat, a sliding groove, a slider, a guide plate, and an auxiliary wheel, so that the supporting seat is in the shape of a long strip extending in the up-and-down direction, and the supporting seat is detachably fixed to the side wall of the vehicle body, and the sliding groove is arranged in the middle of the supporting seat and extends in the up-and-down direction, so that the slider can be slidably embedded in the sliding groove, and the guide plate is located at the outer side of the supporting seat, and the upper end of the guide plate is connected with the slider, and the auxiliary wheel can be grasped and arranged at the lower end of the guide plate, and the lateral support mechanism also includes a driving component for driving the slider to slide up and down. When the driving component is actuated, the slider can be driven to slide downward to make the guide plate move downward, so that the auxiliary wheel is supported on the supporting surface, so as to form a lateral support for the vehicle body, so that the electric transport vehicle is not easy to tilt and has good safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the utility model.

[0021] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the middle lateral support mechanism, with the outer cover hidden for ease of observation.

[0022] Figure 3 yes Figure 2 Schematic diagram after the upper end of the guide plate is hidden.

[0023] Figure 4 yes Figure 2 Schematic diagram of the back.

[0024] Among them: 10. Car body; 20. Fork; 30. Loading wheel; 40. Lateral support mechanism; 41. Support seat; 411. Top plate; 412. Bottom plate; 413. Deep groove ball bearing; 414. Elastic retaining ring for hole; 42. Slide; 421. Boss; 43. Slider; 431. Locating pin; 432. Threaded hole; 44. Guide plate; 441. Flange; 442. Brake ear; 443. Locating hole; 444. Bolt hole; 45. Auxiliary wheel; 451. Wheel axle; 452. Elastic retaining ring for shaft; 461. Motor; 462. Screw rod; 463. Nut; 464. Hexagonal nut; 465. Driver; 466. Brake; 47. Proximity switch; 48. Outer cover. DETAILED DESCRIPTION

[0025] The up and down, front and back, left and right directions described in this utility model refer to Figure 1 The up and down, front and back, left and right directions.

[0026] like Figures 1 to 4As shown, the electric transport vehicle provided by the utility model includes a vehicle body 10, a fork 20, a load-bearing wheel 30, and a lateral support mechanism 40, wherein a roller (not shown in the figure) is provided at the bottom of the vehicle body 10; the fork 20 is liftably connected to the front end of the vehicle body 10; the load-bearing wheel 30 is arranged at the front end of the fork 20; the lateral support mechanism 40 is arranged on the left and right sides of the vehicle body 10, and the lateral support mechanism 40 is used to provide lateral support force to the vehicle body 10. Specifically, the lateral support mechanism 40 includes a support seat 41, a slide groove 42, a slider 43, and a guide plate 44. The support seat 41 is in the shape of a long strip extending in the up-down direction. The support seat 41 is detachably fixed to the side wall of the vehicle body 10, and the support seat 41 is higher than the bottom surface of the vehicle body 10; the slide groove 42 is opened in the middle of the support seat 41 The guide plate 44 is located on the outer side of the support seat 41 (away from the vehicle body 10). The upper end of the guide plate 44 is connected to the slider 43. The lower end of the guide plate 44 is provided with a rotatable auxiliary wheel 45. The height of the guide plate 44 in the up and down direction is at least twice the distance between the support seat 41 and the bottom surface of the vehicle body 10. The lateral support mechanism 40 also includes a driving component for driving the slider 43 to slide up and down. The advantage of such a setting is that when the driving component is actuated, it can drive the slider 43 to slide downward, so that the guide plate 44 moves downward, and drives the auxiliary wheel 45 to support the supporting surface (such as the ground) to form lateral support for the vehicle body 10, so that the electric transport vehicle is not easy to tilt and has good safety in use.

[0027] To improve the supporting effect, in the present embodiment, the supporting seat 41 is disposed close to the front end surface of the vehicle body 10 , which means that the distance between the front end surface of the supporting seat 41 and the front end surface of the vehicle body 10 does not exceed 10 mm.

[0028] For ease of arrangement, in this embodiment, the slide groove 42 penetrates the support seat 41 in the left-right direction, the groove edge of the slide groove 42 protrudes outward to form a boss 421, and the outer side surface of the slider 43 protrudes from the end surface of the boss 421 by 1-3 mm.

[0029] To enhance the support strength, in the present embodiment, the front and rear ends of the guide plate 44 are folded vertically toward the direction of the support seat 41 to form a rib 441 clamped between the front and rear sides of the boss 421, and the rib 441 is spaced apart from the boss 421; at the same time, the lower end of the guide plate 44 gradually retracts to form a support ear 442, and the axle 451 of the auxiliary wheel 45 is rotatably connected to the support ear 442. Specifically, the axle 45 is inserted into a bearing embedded in the support ear 442 and is tightened by an elastic retaining ring 452 on the shaft.

[0030] To facilitate movement, further, the rotation axis of the wheel axle 451 extends horizontally in the left-right direction.

[0031] In this embodiment, the lateral support mechanism 40 also includes a proximity switch 47 for detecting the position of the auxiliary wheel 45 (and the guide plate 44). The proximity switch 47 is connected to the outer wall of the support seat 41 and is located between the boss 421 and the retaining edge 441. When the upper end of the guide plate 44 moves upward to cover the proximity switch 47, the proximity switch 47 is triggered.

[0032] To facilitate connection, in this embodiment, a positioning pin 431 protruding outward is provided in the middle of the outer side surface of the slider 43, and threaded holes 432 for locking the guide plate 44 are provided around the positioning pin 431. The upper end of the guide plate 44 is provided with a positioning hole 443 matching the positioning pin 431, and a bolt hole 444 corresponding to the threaded hole 432.

[0033] To simplify the structure, in this embodiment, the drive assembly includes a motor 461, a screw rod 462 and a nut 463. The motor 461 is connected to the top of the support seat 41. The output shaft of the motor 461 passes through the top plate 411 of the support seat 41 downward. The screw rod 462 extends in the up-down direction. The upper end of the screw rod 462 is located in the slide groove 42 and is connected to the output shaft of the motor 461. The lower end of the screw rod 462 passes through the bottom plate 412 of the support seat 41 and is rotatably connected to the bottom plate 412. Specifically, a deep groove ball bearing 413 is embedded in the bottom plate 412, and a bottom surface of the bottom plate 412 is also embedded with a An elastic retaining ring 414 is used to tighten the hole of the inner ring of the deep groove ball bearing 413. The lower end of the screw rod 462 is inserted into the inner ring of the deep groove ball bearing 413 and tightly fits with the inner ring. The bottom end of the screw rod 462 is also sleeved with a hexagonal nut 464 for locking; the nut 463 is inserted into the middle of the slider 43 and fixedly connected to the slider 43, and the nut 463 is also sleeved on the screw rod 462. In order to achieve self-locking, the screw rod 462 adopts a trapezoidal screw rod; for the convenience of control, the drive assembly further includes a driver 465 and a brake 466 connected to the top of the motor 461 from top to bottom.

[0034] In order to improve the aesthetics and avoid exposure of moving parts, in this embodiment, the lateral support mechanism also includes an outer cover shell 48, which is connected to the side of the vehicle body 10 and covers the drive assembly, the support seat 41, and the upper end of the guide plate 44.

[0035] Due to the position limitation of the support seat and the rotation direction of the auxiliary wheel, when the auxiliary wheel is supported on the support surface, the turning radius of the vehicle body will not be greatly increased, and the lateral support mechanism is not easily collided when the vehicle body moves.

[0036] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An electric transport vehicle, comprising: A vehicle body, wherein rollers are provided at the bottom of the vehicle body; A cargo fork, the cargo fork being liftably connected to the front end of the vehicle body; A load-bearing wheel, the load-bearing wheel being arranged at the front end of the fork; Features: The two sides of the vehicle body are provided with lateral support mechanisms for providing lateral support force, and the lateral support mechanisms include a support seat, a slide groove, a slider, a guide plate, and an auxiliary wheel. The support seat is in the shape of a long strip extending in the up-down direction, and the support seat is detachably fixed to the side wall of the vehicle body, the slide groove is opened in the middle of the support seat and extends in the up-down direction, the slider can be slidably embedded in the slide groove, the guide plate is located on the outside of the support seat, the upper end of the guide plate is connected to the slider, and the auxiliary wheel is rotatably arranged on the lower end of the guide plate, and the lateral support mechanism also includes a driving component for driving the slider to slide up and down.

2. The electric transport vehicle according to claim 1, characterized in that: The support seat is arranged close to the front end surface of the vehicle body.

3. The electric transport vehicle according to claim 1, characterized in that: The slide groove penetrates the support seat in the left-right direction, the groove edge of the slide groove protrudes outward to form a boss, and the outer side surface of the sliding block is flush with the end surface of the boss or protrudes from the boss.

4. The electric transport vehicle according to claim 3, characterized in that: The front and rear ends of the guide plate are vertically folded toward the direction where the support seat is located to form a retaining edge clamped at the front and rear sides of the boss, and the retaining edge is spaced apart from the boss.

5. The electric transport vehicle according to claim 4, characterized in that: The lateral support mechanism also includes a proximity switch for detecting the position of the auxiliary wheel. The proximity switch is connected to the outer wall of the support seat and is located between the boss and the retaining edge. When the upper end of the guide plate moves upward to cover the proximity switch, the proximity switch is triggered.

6. The electric transport vehicle according to claim 1, characterized in that: A positioning pin protruding outward is provided in the middle of the outer side surface of the slider, and threaded holes for locking the guide plate are provided around the positioning pin. A positioning hole matching the positioning pin and a bolt hole corresponding to the threaded hole are provided at the upper end of the guide plate.

7. The electric transport vehicle according to claim 1, characterized in that: The lower end of the guide plate is gradually retracted to form a support ear, and the wheel axle of the auxiliary wheel is rotatably connected to the support ear, and the rotation axis of the wheel axle extends horizontally in the left and right directions.

8. The electric transport vehicle according to claim 1, characterized in that: The driving assembly includes a motor, a screw rod and a nut. The motor is connected to the top of the support seat. The output shaft of the motor passes downward through the top plate of the support seat. The screw rod extends in the up and down directions. The upper end of the screw rod is located in the slide groove and is connected to the motor output shaft. The lower end of the screw rod passes through the bottom plate of the support seat and is rotatably connected to the bottom plate. The nut is inserted into the middle of the slider and is fixedly connected to the slider. The nut is also sleeved on the screw rod.

9. The electric transport vehicle according to claim 8, characterized in that: The driving assembly also includes a driver and a brake which are sequentially connected to the top of the motor from top to bottom.

10. The electric transport vehicle according to claim 1, characterized in that: The lateral support mechanism also includes an outer cover shell, which is connected to the side of the vehicle body and covers the driving assembly, the support seat and the upper end of the guide plate.

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