Trolley with high cost performance

Abstract

The utility model discloses a small handcart with high cost performance, which comprises a frame, a front wheel carrier and a rear wheel carrier are respectively arranged at the front bottom and the rear bottom of the frame, the frame comprises a left longitudinal beam and a right longitudinal beam which are inclined towards the front lower side, a plurality of cross beams are welded between the left longitudinal beam and the right longitudinal beam, and a left roller and a right roller are arranged on a wheel shaft of the front wheel carrier. The rear wheel frame comprises a left downward supporting rod and a right downward supporting rod, an upper connecting rod and a lower connecting rod are welded between the left supporting rod and the right supporting rod, a left inserting sleeve and a right inserting sleeve are welded to the left longitudinal beam and the right longitudinal beam, the upper ends of the left supporting rod and the right supporting rod are inserted into the left inserting sleeve and the right inserting sleeve, and limiting pieces for limiting the inserting positions of the supporting rods are arranged on the inserting sleeves. A transverse angle plate is welded between the lower connecting rod and the corresponding supporting rod, a left steel wire rope and a right steel wire rope are horizontally arranged between the left angle plate and the wheel shaft and between the right angle plate and the wheel shaft, the front end of each steel wire rope is sleeved on the wheel shaft through a pull ring, and the rear end of each steel wire rope is locked on the corresponding angle plate through a screw and nut assembly. The limiting piece is a tongue pin which is transversely arranged in a penetrating mode.

Description

Technical Field

[0001] The utility model relates to a trolley for transporting objects, in particular to a small trolley with high cost performance. Background Art

[0002] At present, many trolleys on the market for transporting gas cylinders, oil drums and other goods are very fragile and inconvenient to use. The main reason is the contradiction between their performance and cost.

[0003] The typical structures of the trolley are as follows:

[0004] 1. The utility model patent for "handcart" with authorization announcement number CN205220748U.

[0005] 2. The utility model patent for "Medical Oxygen Cylinder Trolley" with authorization announcement number CN210047516U.

[0006] 3. The utility model patent for "Multifunctional Acetylene Cylinder Trolley" with authorization announcement number CN202400121U.

[0007] 4. The utility model patent for “Foldable Medical Oxygen Cylinder Trolley” with authorization announcement number CN208827855U.

[0008] When the above-mentioned wheelbarrows are of good quality, they are often expensive and only a few people can afford them; however, the wheelbarrows that most people can afford and use are of very poor quality, and various problems and defects often occur. They are soon broken and abandoned. Utility Model Content

[0009] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a low-cost, easy-to-use and durable cart with high cost performance.

[0010] A cost-effective trolley capable of solving the above technical problems, wherein the first technical solution comprises a frame, wherein the front and rear bottoms of the frame are respectively provided with a front wheel frame and a rear wheel frame, wherein the frame comprises left and right longitudinal beams inclined forward and downward, and a plurality of cross beams are welded between the left and right longitudinal beams, and the wheel axles of the front wheel frame are provided with left and right rollers, and the difference is that:

[0011] 1. The rear wheel frame includes two left and right downward support rods, upper and lower connecting rods are welded between the left and right support rods, left and right plug sleeves are welded on the left and right longitudinal beams, the upper ends of the left and right support rods are inserted into the left and right plug sleeves, and each plug sleeve is provided with a limiter for limiting the insertion position of the support rod.

[0012] 2. A transverse angle plate is welded between the lower connecting rod and the corresponding supporting rod. Left and right steel wire ropes are arranged between the left and right angle plates and the wheel axle. The front end of each steel wire rope is mounted on the wheel axle through a pull ring, and the rear end of each steel wire rope is locked on the corresponding angle plate through a screw and nut assembly.

[0013] Furthermore, the support rod is a round tube, and the left and right sockets are round inserts. A longitudinal plate reinforcement I is welded in front or behind each round insert and the longitudinal beam. The left and right plate ears welded on each round tube are clamped forward or backward with the corresponding plate reinforcement I and the insertion position is limited by a tongue pin inserted laterally.

[0014] Furthermore, the lower ends of the left and right support rods are respectively provided with universal wheels.

[0015] Furthermore, the support rod is a square tube II, the left and right sockets are square inserts, and longitudinal rib plates II are welded in front or behind the left and right sides of each insert and the corresponding longitudinal beams. The block ears welded forward or backward on each tube II are clamped between the left and right plate ribs II and the insertion position is limited by a tongue pin inserted laterally.

[0016] Furthermore, the lower connecting rod is welded to the lower ends of the left and right square tubes II, and the left and right universal wheels are installed at the bottoms of the left and right ends of the lower connecting rod through the left and right plate seats.

[0017] Furthermore, upper and lower arc plates II are welded on the outer side of at least one square tube II, and each arc plate II is provided with a binding belt for fixing the fire extinguisher, and an arc pad supported at the bottom of the fire extinguisher is welded on the corresponding plate seat.

[0018] Furthermore, the longitudinal beams and the transverse beams are both square tube beams.

[0019] Beneficial effects of the utility model:

[0020] 1. In the utility model, a cost-effective trolley structure is provided, in which the frame is made of square tubes, the interface is a straight two-dimensional plane, the welding process is easy, the connection is firm, and the production cost is greatly saved.

[0021] 2. In the structure of the utility model, the connection between the rear wheel frame and the frame adopts an installation structure of plug-in + tongue pin, and the connection structure is more reliable, and can run smoothly even on a bumpy road. The tongue pin structure can be used as a hinge when used alone, and the rear wheel frame can be accommodated by rotating to reduce storage space.

[0022] 3. In the structure of the utility model, a steel wire rope connection structure is adopted between the front and rear wheel frames, replacing rigid connection structures such as steel pipes, steel rods, and steel plates. The structure is simple, the manufacturing and processing are easy, and the material cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is an axonometric view of the first embodiment of the utility model.

[0024] Figure 2 for Figure 1 Exploded view of an embodiment.

[0025] Figure 3 This is an axonometric view of the second embodiment of the present utility model.

[0026] Figure 4 This is an axonometric view of the third embodiment of the present utility model.

[0027] Figure 5 for Figure 4 Exploded Axonometric View of Implementation Method Figure I .

[0028] Figure 6 for Figure 4 Exploded Axonometric View of Implementation Method Figure II .

[0029] Figure 7 This is an axonometric view of the fourth embodiment of the present utility model.

[0030] Drawing number identification: 1. Square tube I; 2. Baffle; 3. Sleeve; 4. Arc-shaped square tube; 5. Tripod; 6. Axle; 7. Round tube; 8. Connecting rod; 9. Round plug; 10. Plate rib I; 11. Plate ear; 12. Tongue pin; 13. Rib plate II; 14. Wire rope; 15. Pull ring; 16. Universal wheel; 17. Screw-nut assembly; 18. Reinforcement rib; 19. Buffer pad; 20. Square tube II; 21. Square plug; 22. Angle plate; 23. Block ear; 24. Protective cover; 25. Arc-shaped plate I; 26. Plate seat; 27. Straight square tube; 28. Plate rib III; 29. ​​Arc-shaped plate; 30. Arc-shaped pad. DETAILED DESCRIPTION

[0031] The technical solution of the utility model is further described below in conjunction with the implementation modes shown in the accompanying drawings.

[0032] Embodiment 1, as Figure 1 , Figure 2 shown.

[0033] The utility model discloses a high-cost-effective small cart for transporting gas cylinders, comprising a vehicle frame and a wheel frame, wherein the wheel frame comprises a front wheel frame and a rear wheel frame.

[0034] The frame includes two left and right longitudinal beams inclined forward and downward, each longitudinal beam is a square tube Ⅰ1 made of square pipe material, a trapezoidal baffle 2 upward and perpendicular to the frame is welded between the front lower ends of the left and right square tubes Ⅰ1, the rear ends of the left and right square tubes Ⅰ1 are bent horizontally to serve as push handles, and a sleeve 3 with an outer round and inner square is provided corresponding to each push handle, and each sleeve 3 is mounted on the corresponding push handle to form a handle, and three front, middle and rear cross beams are welded between the front and rear parts of the left and right square tubes Ⅰ1, each cross beam is an arc-shaped square tube 4 made of square pipe material, and each arc-shaped square tube 4 is concave downward and perpendicular to the frame.

[0035] The front wheel frame includes a tripod 5 and an axle 6. The left and right tripods 5 are welded to the front bottom of the left and right square tubes Ⅰ1 and are located on the left and right sides of the first arc-shaped square tube 4. A horizontal axle 6 is welded between the bottoms (vertex corners of the triangle) of the left and right tripods 5. The axle 6 is aligned with the first arc-shaped square tube 4 and the two are connected by welded reinforcing ribs 18. The reinforcing ribs 18 include a middle rib plate and rib rods on the left and right sides. Rollers are respectively installed on the left and right shaft ends of the axle 6, and the installation position of each roller is on the outside of the corresponding tripod 5.

[0036] The rear wheel frame includes two left and right support rods slightly tilted toward the rear and downward and two corresponding left and right sockets, each support rod is a round tube 7, each socket is a round plug tube 9, upper and lower connecting rods 8 are welded between the left and right round tubes 7, each connecting rod 8 is made of square pipes, the left and right round plug tubes 9 are welded to the rear bottom of the left and right square tubes Ⅰ1 and are located on the front side of the third arc-shaped square tube 4, each round plug tube 9 is provided with a buffer pad 19, and a front longitudinal plate rib Ⅰ10 is welded in the center between each round plug tube 9 and the square tube Ⅰ1, the upper ends of the left and right round tubes 7 are inserted in the left and right round plug tubes 9 and squeezed on the buffer pad 19, and the front side of each round tube 7 is centered. The welded left and right plate ears 11 are clamped with the corresponding plate reinforcements Ⅰ10 (the plate reinforcement Ⅰ10 is inserted into the slots between the left and right plate ears 11), and coaxial pin holes are provided on the left and right plate ears 11 and the plate reinforcements Ⅰ10. Tongue pins 12 are horizontally passed through the pin holes to limit the insertion positions of the left and right circular tubes 7. The lower ends of the left and right circular tubes 7 are respectively sleeved and installed with universal wheels 16 without balls; when the left and right circular tubes 7 are pulled out of the left and right circular insertion tubes 9, the tongue pins 12 are inserted and installed, so that the left and right circular tubes 7 are hinged on the left and right plate reinforcements Ⅰ10, and the left and right circular tubes 7 can rotate around the tongue pins 12 and be gathered at the bottom of the left and right square tubes Ⅰ1.

[0037] A transverse angle plate 22 is welded between the lower connecting rod 8 and the corresponding round tube 7, and left and right steel wire ropes 14 are arranged between the left and right angle plates 22 and the wheel axle 6. The pull ring 15 at the front end of each steel wire rope 14 is mounted on the wheel axle 6 through a protective sleeve 24, and the mounting position is on the inner side of the corresponding tripod 5. A screw nut assembly 17 is provided at the rear end of each steel wire rope 14, and the screw connected to the steel wire rope 14 is inserted into the through hole of the corresponding angle plate 22. The nut is tightened on the screw on the angle plate 22 to tighten the steel wire rope 14.

[0038] Embodiment 2, as Figure 3 shown.

[0039] The difference between Example 2 and Example 1 lies in the insertion position of the rear wheel frame.

[0040] The left and right round inserts 9 are vertically welded (the lower ends are slightly tilted backward) to the rear bottom of the left and right square tubes Ⅰ1 and are located on the rear side of the third arc-shaped square tube 4 (suitable for transporting gas cylinders with slightly shorter heights). A rear plate reinforcement Ⅰ10 is welded in the center between each round insert 9 and the square tube Ⅰ1. The upper ends of the left and right round tubes 7 are inserted into the left and right round inserts 9 and squeezed on the buffer pad 19. The left and right plate ears 11 welded in the center on the rear side surfaces of each round tube 7 are clamped with the corresponding plate reinforcement Ⅰ10 (the plate reinforcement Ⅰ10 is inserted in the slots between the left and right plate ears 11). Coaxial pin holes are provided on the left and right plate ears 11 and the plate reinforcement Ⅰ10, and a tongue pin 12 is horizontally passed through each pin hole to limit the insertion position of the left and right round tubes 7.

[0041] Embodiment 3, as Figure 4 , Figure 5 , Figure 6 shown.

[0042] The utility model discloses a high-cost-effective small cart for transporting gas cylinders, comprising a vehicle frame and a wheel frame, wherein the wheel frame comprises a front wheel frame and a rear wheel frame.

[0043] The frame is basically the same as that of Example 1, except that an arc plate 25 welded to the left and right square tubes Ⅰ1 is provided between the second and third arc-shaped square tubes 4, and the arc plate 25 is perpendicular to the frame and faces downward. The function of the arc plate 25 is to place short gas cylinders whose height does not reach the third arc-shaped square tube 4.

[0044] The front wheel frame is basically the same as that in Example 1, except for the structure of the reinforcing ribs 18 . The reinforcing ribs 18 in Example 3 include three left, middle and right ribs welded between the wheel axle 6 and the first arc-shaped square tube 4 .

[0045] The rear wheel frame includes two left and right support rods slightly tilted toward the rear and downward and two corresponding left and right sockets, each support rod is a square tube II 20, each socket is a square plug 21, upper and lower connecting rods 8 are welded between the left and right square tubes II 20, each connecting rod 8 is made of square pipe material, the position of the lower connecting rod 8 is at the bottom of the left and right square tubes II 20, the left and right square plugs 21 are welded to the rear bottom of the left and right square tubes I1 and are located on the front side of the third arc-shaped square tube 4, a buffer pad 19 is arranged in each square plug 21, a front rib plate II 13 is welded between each square plug 21 and the square tube I1, the left and right rib plates II 13 are welded to the left and right side tube walls of the corresponding square tube I1, and the upper and lower connecting rods 8 of the left and right square tubes II 20 are welded to the left and right side tube walls of the corresponding square tube I1. The ends are inserted into the left and right square inserts 21 and squeezed on the buffer pad 19. The block ears 23 welded on the front side tube walls of the square tubes Ⅱ20 are located between the corresponding left and right rib plates Ⅱ13. Coaxial pin holes are opened on the left and right rib plates Ⅱ13 and the block ears 23. Tongue pins 12 are horizontally passed through each pin hole to limit the insertion position of the left and right square tubes Ⅱ20. The left and right bottom ends of the lower connecting rod 8 are respectively installed with universal wheels 16 through plate seats 26; when the left and right square tubes Ⅱ20 are pulled out of the left and right inserts 21 and the tongue pins 12 are inserted, the left and right square tubes Ⅱ20 are hinged on the left and right rib plates Ⅱ13, and the left and right square tubes Ⅱ20 can rotate around the tongue pins 12 and be gathered at the bottom of the left and right square tubes Ⅰ1.

[0046] A transverse angle plate 22 is welded between the lower connecting root 8 and the corresponding square tube Ⅱ20, and the left and right angle plates 22 are connected to the wheel axle 6 by left and right steel wire ropes 14, and the connection structure is the same as that of Example 1; upper and lower arc plates Ⅱ29 are welded on the outer tube wall of a square tube Ⅱ20, and each arc plate Ⅱ29 is passed through a binding belt. The upper and lower binding belts can bind the fire extinguisher to the square tube Ⅱ20, and the bottom of the fire extinguisher rests on the arc stopper 30 welded on the lower plate seat 26.

[0047] Example 4, see Figure 7 shown.

[0048] Embodiment 4 is used for transporting common objects, and therefore, the difference between Embodiment 4 and Embodiments 1, 2, and 3 mainly lies in the structure of the crossbeam.

[0049] Each cross beam is a straight square tube 27, and three straight square tubes 27 are welded between the front and rear parts of the left and right square tubes Ⅰ1. The baffle 2 welded between the front ends of the left and right square tubes Ⅰ1 is a square plate. Two left and right outwardly inclined ribs are used as reinforcing ribs 18 and welded between the left and right square tubes Ⅰ1 and the wheel axle 6. Plate ribs III 28 are welded between each round insert 9 and the third straight square tube 27.

Claims

1. A cost-effective trolley, comprising a frame, wherein the front and rear bottoms of the frame are respectively provided with a front wheel frame and a rear wheel frame, the frame comprises two left and right longitudinal beams inclined forward and downward, a plurality of cross beams are welded between the left and right longitudinal beams, and the wheel axle (6) of the front wheel frame is provided with left and right rollers, characterized in that: The rear wheel frame comprises two left and right support rods pointing downwards, upper and lower connecting rods (8) are welded between the left and right support rods, left and right plug sleeves are welded on the left and right longitudinal beams, the upper ends of the left and right support rods are inserted into the left and right plug sleeves, and each plug sleeve is provided with a limiter for limiting the insertion position of the support rod; A transverse angle plate (22) is welded between the lower connecting rod (8) and the corresponding supporting rod, and left and right steel wire ropes (14) are arranged between the left and right angle plates (22) and the wheel axle (6). The front end of each steel wire rope (14) is sleeved on the wheel axle (6) through a pull ring (15), and the rear end of each steel wire rope (14) is locked on the corresponding angle plate (22) through a screw nut assembly (17).

2. A cost-effective trolley according to claim 1, characterized in that: The support rod is a round tube (7), and the left and right plug sleeves are round plug tubes (9). A longitudinal plate rib I (10) is welded in front or in the back between each round plug tube (9) and the longitudinal beam. The left and right plate ears (11) welded on each round tube (7) are clamped forward or backward with the corresponding plate rib I (10) and the insertion position is limited by a tongue pin (12) inserted transversely.

3. A cost-effective trolley according to claim 2, characterized in that: The lower ends of the left and right support rods are respectively provided with universal wheels (16).

4. A cost-effective trolley according to claim 1, characterized in that: The support rod is a square tube II (20), and the left and right plug sleeves are square plug tubes (21). A longitudinal rib plate II (13) is welded in front or in the back between the left and right sides of each square plug tube (21) and the corresponding longitudinal beam. The block ears (23) welded forward or backward on each square tube II (20) are clamped between the left and right plate ribs II (13) and the insertion position is limited by a tongue pin (12) inserted transversely.

5. A cost-effective trolley according to claim 4, characterized in that: The lower connecting rod (8) is welded to the lower ends of the left and right square tubes II (20), and the left and right end bottoms of the lower connecting rod (8) are equipped with left and right universal wheels (16) through left and right plate seats (26).

6. A cost-effective trolley according to claim 5, characterized in that: Upper and lower arc-shaped plates II (29) are welded on the outer side of at least one square tube II (20), and each arc-shaped plate II (29) is provided with a binding belt for fixing the fire extinguisher, and an arc-shaped pad (30) supported on the bottom of the fire extinguisher is welded on the corresponding plate seat (26).

7. A cost-effective trolley according to any one of claims 1 to 6, characterized in that: The longitudinal beams and the transverse beams are both square tube beams.

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