Trolley with folding function

Abstract

The utility model relates to the technical field of trolleys, in particular to a trolley with a folding function, which comprises a folding assembly and a stabilizing assembly, the folding assembly is composed of a placing plate, a fixing seat, a rotating shaft, an inserting rod, a pull rod, a clamping block, a spring and a clamping ball, and one end of the top of the placing plate is fixedly connected with the fixing seat. A rotating shaft is rotationally connected to the inner wall of the fixing base, an inserting rod is clamped to the inner wall of the rotating shaft, and a pull rod is fixedly connected to one end of the rotating shaft. According to the trolley with the folding function, through the arrangement of the placing plate, the fixing seat, the rotating shaft, the inserting rod, the pull rod, the clamping block, the spring and the clamping ball, when a worker needs to fold the trolley in the using process, the inserting rod on the fixing seat can be pulled out, the rotating shaft on the pull rod rotates along the inner wall of the fixing seat, and the clamping block on the pull rod is clamped into an arc-shaped groove in the placing plate; the clamping balls on the inner walls of the arc-shaped grooves are compressed and pushed by the springs to be extruded to the inner walls of the clamping blocks, and the pull rods are pre-positioned.

Description

Technical Field

[0001] This utility model relates to the field of handcart technology, specifically a handcart with a folding function. Background Technology

[0002] The handcart is a transport vehicle that is pushed and pulled by human power, and it is the ancestor of all vehicles. Although the technology of handcart material handling has been continuously developed, the handcart is still used as an indispensable tool to facilitate the transportation of materials by workers.

[0003] However, existing folding handcarts have the following disadvantages:

[0004] (1) Existing folding trolleys have weak folding and storage functions. The existing device is not convenient for staff to fold and carry the trolley, which may cause inconvenience for staff to carry the trolley.

[0005] (2) Existing folding trolleys have weak stability. When placing or transporting materials, the existing device may cause the trolley to shake and shift, making it inconvenient for workers to unload or load materials. Utility Model Content

[0006] The purpose of this invention is to provide a folding handcart to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a folding handcart, comprising a folding assembly and a stabilizing assembly. The folding assembly consists of a placement plate, a fixed base, a rotating shaft, a plug rod, a pull rod, a locking block, a spring, and a locking ball. A fixed base is fixedly connected to one top end of the placement plate. A rotating shaft is rotatably connected to the inner wall of the fixed base. A plug rod is locked to the inner wall of the rotating shaft. A pull rod is fixedly connected to one end of the rotating shaft. A locking block is fixedly connected to the outer surface of the pull rod. An arc-shaped groove is formed at the other top end of the placement plate. A circular slot is formed on the inner side wall of the arc-shaped groove. A spring is fixedly connected to one edge of the inner wall of the circular slot. A locking ball is fixedly connected to one end of the spring.

[0008] The stabilizing component comprises a storage frame fixed to the bottom edge of the placement plate, a servo motor, a drive gear, a driven gear, a threaded rod, a fixed cylinder, an adjusting frame, a limiting block, and casters. A servo motor is fixedly connected to one side of the inner wall of the storage frame. The output shaft of the servo motor is fixedly connected to the drive gear. The outer surface of the drive gear meshes with the driven gear. A threaded rod is fixedly connected to the bottom of the driven gear. A fixed cylinder is threadedly connected to the outer surface of the threaded rod. An adjusting frame is fixedly connected to the bottom of the fixed cylinder. A limiting block is fixedly connected to the side of the adjusting frame. Casters are provided at the bottom of the adjusting frame.

[0009] Preferably, the inner wall of the spring is provided with a damper, one end of which is fixedly connected to the center of the back of the ball. The damper can stabilize the spring to perform directional deformation.

[0010] Preferably, the top center of the placement plate is provided with an arc-shaped groove, and a wear-resistant pad is fixedly connected to the inner wall of the arc-shaped groove. The wear-resistant pad can reduce the wear of the material on the device, and at the same time provide a certain friction force for the material to prevent it from falling off.

[0011] Preferably, a stabilizing rod is fixedly connected to the top of the driven gear, and the top of the stabilizing rod is rotatably connected to the center of the inner top wall of the storage frame. The stabilizing rod can stabilize the rotation of the driven gear and support the pressure on the caster wheel.

[0012] Preferably, the storage frame has an auxiliary groove on its side, and the inner wall of the auxiliary groove is slidably connected to the outer surface of the limiting block. The limiting block slides in the auxiliary groove on the storage frame to stabilize the movement of the adjustment frame.

[0013] Preferably, the side of the fixing base has a slot, and the inner wall of the slot is engaged with one end of the insertion rod, so that the insertion rod can be inserted into the slot on the fixing base.

[0014] Compared with this device, the beneficial effects of this utility model are:

[0015] 1. This folding handcart, through the arrangement of a placement plate, fixed base, rotating shaft, insert rod, pull rod, locking block, spring, and locking ball, allows the operator to fold the device when needed. The insert rod on the fixed base can be pulled out, allowing the rotating shaft on the pull rod to rotate along the inner wall of the fixed base. This causes the locking block on the pull rod to engage with the arc-shaped groove on the placement plate. The locking ball on the inner wall of the arc-shaped groove is compressed by the spring, pressing against the inner wall of the locking block to pre-position the pull rod. The operator then inserts the insert rod into the fixed base, with one end of the insert rod abutting against the rotating shaft to further position the pull rod. This design facilitates the folding and carrying of the device by the operator.

[0016] 2. This folding handcart, through the configuration of a storage frame, servo motor, drive gear, driven gear, threaded rod, fixed cylinder, adjusting frame, limit block, and casters, allows the operator to activate the servo motor within the storage frame during loading or unloading. The servo motor drives the drive gear, which in turn drives the driven gear, which in turn drives the threaded rod. This causes the fixed cylinder to move upwards along the threaded rod, and the limit block on the side of the adjusting frame at the bottom of the fixed cylinder to stably lift the storage frame, allowing the casters to retract into the storage frame and release the casters from the ground, resting the storage frame against the ground. This design prevents the casters from moving and causing displacement of the device, thus avoiding interference with loading or unloading operations. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a schematic diagram of the storage frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the fixing base of this utility model;

[0020] Figure 4 This is a schematic diagram of the placement plate of this utility model.

[0021] In the diagram: 1. Folding assembly; 101. Placement plate; 102. Fixing base; 103. Rotating shaft; 104. Insert rod; 105. Pull rod; 106. Locking block; 107. Spring; 108. Locking ball; 2. Stabilizing assembly; 201. Storage frame; 202. Servo motor; 203. Drive gear; 204. Driven gear; 205. Threaded rod; 206. Fixing cylinder; 207. Adjustment frame; 208. Limiting block; 209. Caster wheel; 3. Damper; 4. Wear-resistant pad; 5. Stabilizing bar. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4As shown, this utility model provides a technical solution: a folding handcart, including a folding assembly 1 and a stabilizing assembly 2. The folding assembly 1 consists of a placement plate 101, a fixed base 102, a rotating shaft 103, a plug rod 104, a pull rod 105, a locking block 106, a spring 107, and a locking ball 108. The fixed base 102 is fixedly connected to one end of the top of the placement plate 101. The rotating shaft 103 is rotatably connected to the inner wall of the fixed base 102. The plug rod 104 is locked to the inner wall of the rotating shaft 103. The pull rod 105 is fixedly connected to one end of the rotating shaft 103. The locking block 106 is fixedly connected to the outer surface of the pull rod 105. An arc-shaped groove is opened at the other end of the top of the placement plate 101. A circular slot is opened on the inner side wall of the arc-shaped groove. A spring 107 is fixedly connected to one edge of the inner wall of the circular slot. The locking ball 108 is fixedly connected to one end of the spring 107. With the arrangement of the placement plate 101, fixed base 102, rotating shaft 103, insertion rod 104, pull rod 105, locking block 106, spring 107, and locking ball 108, when the operator needs to fold the device, the insertion rod 104 on the fixed base 102 can be pulled out, allowing the rotating shaft 103 on the pull rod 105 to rotate along the inner wall of the fixed base 102, so that the locking block 106 on the pull rod 105 can be inserted into the arc-shaped groove on the placement plate 101. The locking ball 108 on the inner wall of the arc-shaped groove is compressed and pushed by the spring 107, pressing against the inner wall of the locking block 106 to pre-position the pull rod 105. The operator then inserts the insertion rod 104 into the fixed base 102, so that one end of the insertion rod 104 abuts against the rotating shaft 103 to further position the pull rod 105. This arrangement makes it convenient for the operator to fold and carry the device.

[0024] The stabilizing component 2 consists of a storage frame 201 fixed to the bottom edge of the placement plate 101, a servo motor 202, a drive gear 203, a driven gear 204, a threaded rod 205, a fixed cylinder 206, an adjusting frame 207, a limiting block 208, and casters 209. The servo motor 202 is fixedly connected to one side of the inner wall of the storage frame 201. The output shaft of the servo motor 202 is fixedly connected to the drive gear 203. The driven gear 204 meshes with the outer surface of the drive gear 203. The threaded rod 205 is fixedly connected to the bottom of the driven gear 204. The fixed cylinder 206 is threadedly connected to the outer surface of the threaded rod 205. The adjusting frame 207 is fixedly connected to the bottom of the fixed cylinder 206. The limiting block 208 is fixedly connected to the side of the adjusting frame 207. Casters 209 are provided at the bottom of the adjusting frame 207. The stabilizing component 2 is achieved through the storage frame 201, the servo motor 202, and the drive gear... The following components are designed for use: 203. Driven gear 204, threaded rod 205, fixed cylinder 206, adjusting frame 207, limiting block 208, and caster wheel 209. During loading or unloading, the operator activates the servo motor 202 inside the storage frame 201. The servo motor 202 drives the drive gear 203, which in turn drives the driven gear 204. The driven gear 204 then drives the threaded rod 205, causing the fixed cylinder 206 to move upwards along the threaded rod 205. This allows the limiting block 208 on the side of the adjusting frame 207 at the bottom of the fixed cylinder 206 to be stably raised along the storage frame 201, retracting the caster wheel 209 into the storage frame 201. This releases the caster wheel 209 from the ground, allowing the storage frame 201 to rest against the ground. This design facilitates the movement of the caster wheel 209, preventing displacement of the device and ensuring proper loading or unloading.

[0025] A damper 3 is provided on the inner wall of the spring 107. One end of the damper 3 is fixedly connected to the center of the back of the ball 108. Through the arrangement of the spring 107, the damper 3 and the ball 108, the damper 3 can stabilize the directional deformation of the spring 107 during use.

[0026] An arc-shaped groove is provided at the top center of the placement plate 101, and a wear-resistant pad 4 is fixedly connected to the inner wall of the arc-shaped groove. With the placement plate 101 and the wear-resistant pad 4, the wear-resistant pad 4 can reduce the wear of the material on the device during use, and at the same time provide a certain friction force for the material to prevent it from falling.

[0027] A stabilizing rod 5 is fixedly connected to the top of the driven gear 204. The top of the stabilizing rod 5 is rotatably connected to the center of the inner top wall of the storage frame 201. Through the arrangement of the driven gear 204, the stabilizing rod 5 and the storage frame 201, the stabilizing rod 5 can stabilize the rotation of the driven gear 204 during use, and at the same time support the pressure on the caster wheel 209.

[0028] An auxiliary groove is provided on the side of the storage frame 201. The inner wall of the auxiliary groove is slidably connected to the outer surface of the limiting block 208. With the setting of the storage frame 201 and the limiting block 208, when in use, the limiting block 208 slides in the auxiliary groove on the storage frame 201 to stabilize the movement of the adjustment frame 207.

[0029] The side of the fixing base 102 is provided with a slot, and the inner wall of the slot is engaged with one end of the insertion rod 104. With the fixing base 102 and the insertion rod 104, the insertion rod 104 will be inserted into the slot on the fixing base 102 during use.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: When loading or unloading materials, the staff starts the servo motor 202 in the storage frame 201, which drives the drive gear 203, which in turn drives the driven gear 204 to rotate. The driven gear 204 then drives the threaded rod 205 to rotate, causing the fixed cylinder 206 to move upward along the threaded rod 205. The limiting block 208 on the side of the adjusting bracket 207 at the bottom of the fixed cylinder 206 is then steadily lifted along the storage frame 201, allowing the caster wheel 209 to retract into the storage frame 201. The caster wheel 209 is then released from the ground, allowing the storage frame 201 to rest against the ground.

[0032] The second step: When the staff needs to fold the device, they can pull out the insert rod 104 on the fixed base 102, so that the rotating shaft 103 on the pull rod 105 can rotate along the inner wall of the fixed base 102, so that the locking block 106 on the pull rod 105 can be inserted into the arc groove on the placement plate 101, so that the locking ball 108 on the inner wall of the arc groove can be compressed and pushed by the spring 107, and pressed against the inner wall of the locking block 106 to pre-position the pull rod 105. Then the staff can insert the insert rod 104 into the fixed base 102, so that one end of the insert rod 104 abuts into the rotating shaft 103 to further position the pull rod 105.

[0033] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0034] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

Claims

1. A folding trolley, comprising a folding assembly (1) and a stabilizing assembly (2), characterized in that: The folding assembly (1) consists of a placement plate (101), a fixing seat (102), a rotating shaft (103), a plug rod (104), a pull rod (105), a locking block (106), a spring (107), and a locking ball (108). The top end of the placement plate (101) is fixedly connected to the fixing seat (102). The inner wall of the fixing seat (102) is rotatably connected to the rotating shaft (103). The inner wall of the rotating shaft (103) is locked with the plug rod (104). One end of the rotating shaft (103) is fixedly connected to the pull rod (105). The outer surface of the pull rod (105) is fixedly connected to the locking block (106). The other end of the top of the placement plate (101) is provided with an arc-shaped groove. The inner side wall of the arc-shaped groove is provided with a circular slot. One edge of the inner wall of the circular slot is fixedly connected to the spring (107). One end of the spring (107) is fixedly connected to the locking ball (108). The stabilizing component (2) consists of a storage frame (201) fixed to the bottom edge of the placement plate (101), a servo motor (202), a drive gear (203), a driven gear (204), a threaded rod (205), a fixed cylinder (206), an adjusting frame (207), a limiting block (208), and casters (209). The servo motor (202) is fixedly connected to one side of the inner wall of the storage frame (201), and the output shaft of the servo motor (202) is fixedly connected to a main... A driving gear (203) is provided, and a driven gear (204) meshes with the outer surface of the driving gear (203). A threaded rod (205) is fixedly connected to the bottom of the driven gear (204). A fixed cylinder (206) is threadedly connected to the outer surface of the threaded rod (205). An adjusting frame (207) is fixedly connected to the bottom of the fixed cylinder (206). A limit block (208) is fixedly connected to the side of the adjusting frame (207). A universal wheel (209) is provided at the bottom of the adjusting frame (207).

2. A folding handcart according to claim 1, characterized in that: The inner wall of the spring (107) is provided with a damper (3), and one end of the damper (3) is fixedly connected to the center of the back of the ball (108).

3. A folding handcart according to claim 1, characterized in that: The top center of the placement plate (101) is provided with an arc-shaped groove, and a wear-resistant pad (4) is fixedly connected to the inner wall of the arc-shaped groove.

4. A folding handcart according to claim 1, characterized in that: A stabilizing rod (5) is fixedly connected to the top of the driven gear (204), and the top of the stabilizing rod (5) is rotatably connected to the center of the inner top wall of the storage frame (201).

5. A folding handcart according to claim 1, characterized in that: The storage frame (201) has an auxiliary groove on its side, and the inner wall of the auxiliary groove is slidably connected to the outer surface of the limiting block (208).

6. A folding handcart according to claim 1, characterized in that: The side of the fixing base (102) is provided with a slot, and the inner wall of the slot is engaged with one end of the insertion rod (104).

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