Composite film roll transport vehicle with high safety

Abstract

The utility model relates to the technical field of composite film roll transportation, and discloses a high-safety composite film roll transport vehicle which comprises a bottom frame and a supporting groove, a plurality of supporting columns are arranged between the supporting groove and the bottom frame, directional wheels and universal wheels are arranged at the bottom of the bottom frame, a liftable safety wheel assembly is arranged in the middle of the bottom frame, and a fixing frame is arranged at the bottom of the safety wheel assembly. A one-way wheel is arranged in the fixing frame, a positioning hole is formed in the fixing frame, a limiting elastic buckle is arranged on the inner wall of the positioning hole, the one-way wheel is provided with a shaft rod, a ratchet wheel is arranged on the shaft rod, and the ratchet wheel is matched with the limiting elastic buckle so that the one-way wheel can only rotate in one direction. The utility model has the advantages that: 1, the one-way wheel is arranged between the universal wheel and the directional wheel, so that the steering of the transport vehicle can be locked and unlocked by lifting the one-way wheel, and a worker can conveniently control the transport vehicle to stably move along a specified route; the ratchet wheel is matched with the limiting elastic buckle, so that the one-way wheel can only rotate in one direction, the transport vehicle can be prevented from moving backwards, and the transport safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite film roll transportation, in particular to a composite film roll transportation vehicle with high safety. Background Art

[0002] Composite film is a material made of multiple materials. After production, the composite film is trimmed and wound according to the required width to form a composite film roll. Roll-shaped composite film rolls are usually heavy and require high transportation and storage. The existing method of moving composite film rolls is relatively simple. In order to facilitate the transfer of composite film rolls on different floors in the warehouse, small-volume transportation equipment is usually used, such as the mold transport vehicle disclosed in Chinese patent CN219970144U. Although this transport vehicle is convenient for transporting composite film rolls for transfer, due to the high weight of composite film rolls, the transport vehicle is prone to accidental speed changes and reversal when the speed of the transport vehicle is increased or when going uphill or downhill, which poses a high safety hazard. In view of this, the inventor has made a new invention. Utility Model Content

[0003] The utility model aims to provide a composite film roll transport vehicle with high safety in view of the deficiencies in the prior art, which has the advantage of high safety performance.

[0004] To achieve the above-mentioned purpose, the utility model provides a highly safe composite film roll transport vehicle, comprising a base frame, and also comprising a bracket arranged above the base frame, a plurality of pillars are arranged between the bracket and the base frame, a directional wheel is arranged at one end of the bottom of the base frame, a universal wheel is arranged at the other end of the bottom of the base frame, a liftable safety wheel assembly is arranged in the middle of the base frame, a fixing frame is arranged at the bottom of the safety wheel assembly, a one-way wheel is arranged in the fixing frame, the fixing frame is provided with a positioning hole, a limiting spring buckle is arranged on the inner wall of the positioning hole, the one-way wheel is provided with an axle rod that can cooperate with the positioning hole, a ratchet that can abut against the limiting spring buckle is arranged on the axle rod, and the ratchet and the limiting spring buckle cooperate to make the one-way wheel only able to rotate in one direction; a cross beam is arranged on the pillar, and a driving motor that drives the safety wheel assembly to rise and fall is fixedly arranged on one side of the cross beam rod, and a push rod is extended upward at one end of the base frame close to the universal wheel, and a controller that can control the driving motor is arranged on the push rod.

[0005] Furthermore, the pillars are parallel to each other, the safety wheel assembly is provided with a movable plate, and guide grooves cooperating with the pillars are provided on both sides of the movable plate.

[0006] Furthermore, the movable plate is provided with a connecting portion, the driving motor is provided with a power screw passing through the connecting portion, and the power screw is threadedly connected to the connecting portion.

[0007] Preferably, the crossbeam is provided with a guide column extending downward, and the movable plate is provided with a limiting hole cooperating with the guide column.

[0008] Furthermore, the push rod is provided with a handle portion, and a controller is provided on the handle portion. At least two controllers are provided, which respectively drive the safety wheel assembly to rise and fall.

[0009] Furthermore, the universal wheel is provided with a brake assembly, and the handle is provided with a handbrake for controlling the brake assembly.

[0010] Furthermore, a first sensor is arranged at the bottom of the crossbeam, and a second sensor corresponding to the position of the first sensor is arranged in the safety wheel assembly.

[0011] Furthermore, a third sensor is arranged on the base frame.

[0012] Furthermore, movable guardrails are provided on both sides of the bracket.

[0013] The invention provides a composite film roll transport vehicle with high safety, comprising a base frame and a bracket, a plurality of pillars are arranged between the bracket and the base frame, a directional wheel and a universal wheel are arranged at the bottom of the base frame, a liftable safety wheel assembly is arranged at the middle of the base frame, a fixing frame is arranged at the bottom of the safety wheel assembly, a one-way wheel is arranged in the fixing frame, a positioning hole is arranged on the fixing frame, a limiting spring buckle is arranged on the inner wall of the positioning hole, the one-way wheel is arranged with an axle rod which can cooperate with the positioning hole, a ratchet which can abut against the limiting spring buckle is arranged on the axle rod, and the ratchet wheel cooperates with the limiting spring buckle so that the one-way wheel can only rotate in one direction; the utility model has the following advantages: 1. The utility model uses the one-way wheel arranged between the universal wheel and the directional wheel to lock and unlock the steering of the transport vehicle by raising and lowering the one-way wheel, so that the worker can control the transport vehicle to move stably along the designated route; 2. The cooperation of the ratchet wheel and the limiting spring buckle makes the one-way wheel can only rotate in one direction, which can prevent the transport vehicle from moving backward and improve the transportation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the bottom structure of the chassis of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the safety wheel assembly of the utility model.

[0017] Figure 4 It is a schematic diagram of the one-way wheel structure decomposition of the utility model.

[0018] Reference numerals include:

[0019] Base frame--1, bracket--11, pillar--12, directional wheel--13, universal wheel--14, brake assembly--141, crossbeam--15, guide column--151, guardrail--16, safety wheel assembly--2, fixing frame--21, positioning hole--211, limiting spring buckle--212, one-way wheel--22, shaft--221, ratchet--222, movable plate--23, guide groove--231, limiting hole--232, connecting part--24, driving motor--3, power screw--31, push rod--4, controller--41, handle--42, handbrake--43, first sensor--5, second sensor--6, third sensor--7. DETAILED DESCRIPTION

[0020] The following is combined with Figures 1 to 4 The utility model is described in detail.

[0021] The utility model discloses a composite film roll transport vehicle with high safety, comprising a base frame 1 and a bracket 11 arranged above the base frame 1. The bracket 11 is in the shape of a semicircular groove. When the transport vehicle transports the composite film roll, the composite film roll is placed in the bracket 11. A number of pillars 12 are arranged between the bracket 11 and the base frame 1, a fixed wheel 13 is arranged at one end of the bottom of the base frame 1, and a universal wheel 14 is arranged at the other end of the bottom of the base frame 1. During the movement of the transport vehicle, the fixed wheel 13 serves as the front wheel and cannot be steered, and the universal wheel 14 serves as the rear wheel and can be steered at will to adjust the forward direction of the transport vehicle. A liftable safety wheel assembly 2 is arranged in the middle of the base frame 1, and a fixed frame 21 is arranged at the bottom of the safety wheel assembly 2. A one-way wheel 22 is arranged in the fixed frame 21, and the one-way wheel 22 cannot be steered. After the safety wheel assembly 2 is lowered to a certain position, the one-way wheel 22 is aligned with the fixed wheel 13 in a horizontal position. When the transport vehicle moves, the cooperation between the one-way wheel 22 and the fixed wheel 13 limits the moving trajectory of the transport vehicle, and the transport vehicle cannot be steered, so that the transport vehicle can move forward stably and in a straight line. The fixing frame 21 is provided with a positioning hole 211, and a limit snap 212 is provided on the inner wall of the positioning hole 211. The one-way wheel 22 is provided with a shaft 221 that can cooperate with the positioning hole 211, and a ratchet 222 that can abut against the limit snap 212 is provided on the shaft 221. The ratchet 222 cooperates with the limit snap 212 to make the one-way wheel 22 only rotate in one direction, thereby preventing the transport vehicle from moving backward and improving transportation safety. The support column 12 is provided with a crossbeam 15, and a driving motor 3 that drives the safety wheel assembly 2 to rise and fall is fixedly provided on one side of the crossbeam 15. A push rod 4 is extended upward from one end of the base frame 1 close to the universal wheel 14, and a controller 41 that can control the driving motor 3 is provided on the push rod 4. By setting the one-way wheel 22 between the universal wheel 14 and the directional wheel 13, raising and lowering the one-way wheel 22 locks and unlocks the steering of the transport vehicle. Specifically, when the transport vehicle is moving normally, the directional wheel 13, the one-way wheel 22 and the universal wheel 14 touch the ground at the same time. When the one-way wheel 22 touches the ground, the transport vehicle cannot turn and cannot move backward, which is convenient for workers to control the transport vehicle to move stably along the designated route and prevent the transport vehicle from accidentally moving backward. After the driving motor 3 drives the safety wheel assembly 2 to rise, only the directional wheel 13 and the universal wheel 14 touch the ground. At this time, the worker can control the transport vehicle to turn and move backward, which is easy to operate.

[0022] The pillars 12 are parallel to each other, and the safety wheel assembly 2 is provided with a movable plate 23, and guide grooves 231 are provided on both sides of the movable plate 23 to cooperate with the pillars 12. The fixing frame 21 is fixedly arranged below the movable plate 23, and the guide grooves 231 cooperate with the pillars 12 to enable the movable plate 23 to be stably lifted and lowered, so as to avoid rotation or other erroneous displacement during the lifting and lowering of the movable plate 23, and ensure that the direction of the one-way wheel 22 is consistent with the positioning wheel.

[0023] The movable plate 23 is provided with a connection portion 24, and the drive motor 3 is provided with a power screw 31 passing through the connection portion 24, and the power screw 31 is threadedly connected to the connection portion 24. The drive motor 3 is a rechargeable servo motor, which converts the rotational motion into a linear motion through the power screw 31, so that the drive motor 3 drives the movable plate 23 to rise and fall, and then the one-way wheel 22 to rise and fall. When the transport vehicle needs to turn, it only needs to drive the one-way wheel 22 to rise a short distance to lift the one-way wheel 22 off the ground. The safety wheel assembly 2 has a small lifting range and a fast lifting speed.

[0024] The crossbeam 15 is provided with a guide column 151 extending downward, and the movable plate 23 is provided with a limiting hole 232 matched with the guide column 151. Through the cooperation between the pillar 12 and the guide groove 231, and the cooperation between the guide column 151 and the limiting hole 232, the stability of the lifting and lowering of the safety wheel assembly 2 is further improved, and at the same time, after the one-way wheel 22 lands, the reaction force generated when the wheel rolls on the ground can be prevented from affecting the safety wheel assembly 2, and the structural stability is high.

[0025] The push rod 4 is provided with a handle 42, and a controller 41 is provided on the handle 42. At least two controllers 41 are provided, which respectively drive the safety wheel assembly 2 to rise and fall. The controller 41 is a button type. Long pressing the controller 41 can make the driving motor 3 continue to operate, and releasing the button can stop the driving motor 3. The control method is simple and convenient.

[0026] The universal wheel 14 is provided with a brake assembly 141, and the handle 42 is provided with a hand brake 43 for controlling the brake assembly 141. After the worker pushes the transport vehicle, due to the weight of the composite film roll, the transport vehicle has a certain physical inertia after moving, and the worker can use the hand brake 43 to slow down the speed of the transport vehicle to prevent the transport vehicle from moving too fast, thereby further improving the safety performance.

[0027] The bottom of the crossbar 15 is provided with a first sensor 5, and the safety wheel assembly 2 is provided with a second sensor 6 corresponding to the position of the first sensor 5. After the safety wheel assembly 2 rises, the distance between the first sensor 5 and the second sensor 6 is shortened. When the first sensor 5 and the second sensor 6 reach a certain distance, the driving motor 3 stops running, and the worker cannot continue to press the controller 41 to make the safety wheel assembly 2 rise, so as to prevent the movable plate 23 from colliding with the crossbar 15.

[0028] The base frame 1 is provided with a third sensor 7. The third sensor 7 is a pressure-sensitive contact sensor, and the third sensor 7 is provided beside the pillar 12. After the safety wheel assembly 2 is lowered to a certain position, the movable plate 23 contacts the top of the third sensor 7, and the driving motor 3 stops running. At this time, the worker cannot continue to press the controller 41 to lower the safety wheel assembly 2, so as to prevent the transport vehicle from being unbalanced.

[0029] Movable guardrails 16 are provided on both sides of the bracket 11. After the composite film roll is placed in the bracket 11, the guardrails 16 can be moved upward to block the two sides of the composite film roll, so as to prevent the composite film roll in the bracket 11 from being displaced during the movement of the transport vehicle, and the composite film roll can be transported safely and stably.

[0030] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A composite film roll transport vehicle with high safety, comprising a chassis (1), characterized in that: The invention also comprises a bracket (11) arranged above the base frame (1), a plurality of pillars (12) are arranged between the bracket (11) and the base frame (1), a directional wheel (13) is arranged at one end of the bottom of the base frame (1), a universal wheel (14) is arranged at the other end of the bottom of the base frame (1), a liftable safety wheel assembly (2) is arranged in the middle of the base frame (1), a fixing frame (21) is arranged at the bottom of the safety wheel assembly (2), and a one-way wheel is arranged in the fixing frame (21). The fixing frame (21) is provided with a positioning hole (211), a limiting spring buckle (212) is provided on the inner wall of the positioning hole (211), the one-way wheel (22) is provided with a shaft (221) which can cooperate with the positioning hole (211), a ratchet (222) which can abut against the limiting spring buckle (212) is provided on the shaft (221), and the ratchet (222) cooperates with the limiting spring buckle (212) so that the one-way wheel (22) can only rotate in one direction; A crossbeam (15) is arranged on the support column (12), a driving motor (3) for driving the safety wheel assembly (2) to rise and fall is fixedly arranged on one side of the crossbeam (15), and a push rod (4) is arranged on one end of the base frame (1) close to the universal wheel (14) and extending upward, and a controller (41) for controlling the driving motor (3) is arranged on the push rod (4).

2. A highly safe composite film roll transport vehicle according to claim 1, characterized in that: The pillars (12) are parallel to each other, and the safety wheel assembly (2) is provided with a movable plate (23). Both sides of the movable plate (23) are provided with guide grooves (231) that cooperate with the pillars (12).

3. A highly safe composite film roll transport vehicle according to claim 2, characterized in that: The movable plate (23) is provided with a connecting portion (24), and the driving motor (3) is provided with a power screw (31) passing through the connecting portion (24), and the power screw (31) is threadedly connected to the connecting portion (24).

4. The highly safe composite film roll transport vehicle according to claim 2, characterized in that: The crossbeam rod (15) is provided with a guide column (151) extending downward, and the movable plate (23) is provided with a limiting hole (232) matched with the guide column (151).

5. The highly safe composite film roll transport vehicle according to claim 1, characterized in that: The push rod (4) is provided with a handle portion (42), and a controller (41) is provided on the handle portion (42). At least two controllers (41) are provided, which respectively drive the safety wheel assembly (2) to rise and fall.

6. The highly safe composite film roll transport vehicle according to claim 1, characterized in that: The universal wheel (14) is provided with a brake assembly (141), and the handle portion (42) is provided with a hand brake (43) for controlling the brake assembly (141).

7. The highly safe composite film roll transport vehicle according to claim 1, characterized in that: A first sensor (5) is arranged at the bottom of the crossbeam (15), and a second sensor (6) corresponding to the position of the first sensor (5) is arranged in the safety wheel assembly (2).

8. The highly safe composite film roll transport vehicle according to claim 1, characterized in that: A third sensor (7) is arranged on the base frame (1).

9. A highly safe composite film roll transport vehicle according to any one of claims 1 to 8, characterized in that: Movable guardrails (16) are arranged on both sides of the bracket (11).

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