Labor-saving trolley

Abstract

The utility model discloses a labor-saving handcart, which comprises a grip component, a handle component, a handle component and a handle component, the grip component comprises two grips and a fixing rod, and the two grips are respectively mounted at two ends of the fixing rod; the vehicle body comprises a vehicle rod, one end of the vehicle rod is fixedly connected with the fixed rod, and the other end of the vehicle rod is fixedly connected with a cross rod; the bearing frame comprises a connecting rod and a carrying platform, one end of the connecting rod is connected with the cross rod, and the carrying platform is connected with the other end of the connecting rod; the driving assembly comprises a shock absorber, the top end of the shock absorber is connected with the cross rod, the driving assembly further comprises a wheel shaft rotationally connected with the bottom end of the shock absorber, and tires are arranged at the two ends of the wheel shaft; a brake part is arranged at the position of the grip, a brake part is arranged on the wheel shaft, the brake part is connected with the brake part through a brake cable, and the brake part is used for controlling the brake part to brake the wheel shaft through the brake part. The fruit carrying device is simple in structure and convenient to operate, the fruit carrying efficiency can be improved, the time from picking to selling of fruits is shortened, loss is reduced, and economic benefits of orchards are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of trolley, especially a labor-saving trolley. BACKGROUND

[0002] Orchard fruit transportation is a crucial link in orchard production, which is directly related to the quality of fruits, preservation period and economic benefits of orchard. In order to minimize mechanical damage of fruits during the handling process, such as bruising, crushing and the like, and maintain the integrity and aesthetic degree of fruits, it is usually necessary to place the picked fruits in the fruit frame for storage before handling in the orchard.

[0003] The existing fruit handling mode cannot enter the orchard due to the complex terrain and soft soil in the orchard, and can only use manual handling to lift the fruit frame out of the orchard. This handling mode not only greatly consumes the physical strength of the laborers, but also has low handling efficiency, thereby reducing the picking efficiency of fruits, prolonging the time from picking to selling of fruits, increasing the loss of fruits, and greatly affecting the economic benefits of the orchard. SUMMARY

[0004] The utility model discloses a labor-saving trolley, which has the advantages of simple structure, convenient operation, improved fruit handling efficiency, shortened time from picking to selling of fruits, reduced loss, and improved economic benefits of the orchard.

[0005] To solve the above technical problems, the embodiment of the utility model discloses a labor-saving trolley, which comprises:

[0006] The handle assembly comprises two handles and a fixed rod, and the two handles are fixedly installed on the two ends of the fixed rod in the same direction;

[0007] The trolley body comprises a trolley rod, one end of the trolley rod is fixedly connected with the fixed rod, and the other end of the trolley rod is fixedly connected with a cross rod;

[0008] The bearing frame comprises a connecting rod and a load platform, one end of the connecting rod is connected with the cross rod, and the load platform is connected with the other end of the connecting rod, and the load platform is used for placing the fruit frame;

[0009] The drive assembly comprises a shock absorber, the top end of the shock absorber is connected with the cross rod, and the drive assembly further comprises an axle, which is rotatably connected with the bottom end of the shock absorber, and the axle is provided with tires at both ends;

[0010] The brake member is arranged on the wheel shaft, and the brake member is connected with the brake member through the brake line, so that the brake member is controlled by the brake member to brake the wheel shaft.

[0011] The technical scheme has the advantages of simple structure, convenient operation, improved fruit carrying efficiency, shortened time from fruit picking to selling, reduced loss, and improved economic benefits of the orchard.

[0012] According to another specific embodiment of the utility model, the utility model discloses an embodiment of the utility model discloses a telescopic pole, which comprises an inner tube and an outer tube arranged in a nested mode, a plurality of positioning clamping grooves are arranged at intervals along the extension direction of the outer tube, the inner tube comprises a positioning pin, a spring is arranged in the inner tube, the spring abuts against the positioning pin, and the spring can push the positioning pin out of the positioning clamping groove.

[0013] According to another specific embodiment of the utility model, the utility model discloses an embodiment of the utility model discloses that two brake members are arranged respectively, two brake lines are arranged, the two brake lines are connected with the two brake members respectively and are connected with the brake members in sequence along the fixing rod, the telescopic pole, the cross rod and the shock absorber.

[0014] According to another specific embodiment of the utility model, the utility model discloses an embodiment of the utility model discloses that two shock absorbers are arranged, and the top ends of the two shock absorbers are arranged on the two ends of the cross rod.

[0015] According to another specific embodiment of the utility model, the utility model discloses an embodiment of the utility model discloses that the bottom ends of the two shock absorbers are rotatably connected with the wheel shaft through bearings.

[0016] According to another specific embodiment of the utility model, the utility model discloses an embodiment of the utility model discloses that the utility model further comprises a hook, the hook is arranged at the middle of the cross rod, the hook is arranged in a J shape, a reinforcing rib is arranged along the length direction of the hook, the reinforcing rib is triangular, the reinforcing rib is arranged in the hook and is integrally formed with the hook, and the hook is used for fixing the fruit frame.

[0017] According to another specific embodiment of the utility model, the utility model discloses an embodiment of the utility model discloses that a buckle is further arranged at the opening of the hook, the buckle is installed on one side of the opening of the hook through a rotating shaft, when the hook hooks the fruit frame, the buckle is rotated to above the fruit frame, and the buckle can clamp the edge of the fruit frame.

[0018] According to another specific embodiment of the utility model, the utility model discloses an embodiment of the utility model discloses that the tire is a pneumatic tire, and the tread of the pneumatic tire is provided with anti-skid patterns.

[0019] According to another specific embodiment of the present application, the embodiment of the present application discloses a brake member comprising a hand brake pull rod, a brake shoe, a cam mechanism and a return spring, the hand brake pull rod is connected with the brake line and the cam mechanism, when the brake line pulls the hand brake pull rod, the hand brake pull rod drives the cam mechanism to rotate, the cam mechanism drives the brake shoe to open outward to hold the wheel shaft, and the brake of the wheel shaft is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Structure diagram of the labor-saving handcart according to the embodiment of the present application is shown Figure One ;

[0021] Figure 2 Structure diagram of the labor-saving handcart according to the embodiment of the present application is shown Figure Two . DETAILED DESCRIPTION

[0022] The other advantages and effects of the present application can be easily understood by the person skilled in the art from the content disclosed in the present description. Although the description of the present application will be introduced in combination with the preferred embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications which can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be contained in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] It should be noted that in the present description, similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0024] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0025] In the description of the embodiments, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments can be understood according to the specific circumstances.

[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer, the embodiments of the utility model will be described in further detail below with reference to the drawings.

[0027] Referring to Figure 1 and Figure 2 , the application provides a labor-saving trolley, which comprises a handle assembly 1, two handles 12 and a fixed rod 11, the two handles 12 are fixedly installed on the two ends of the fixed rod 11 in the same direction respectively; a trolley body 2, which comprises a trolley rod 21, one end of the trolley rod 21 is fixedly connected with the fixed rod 11, and the other end of the trolley rod 21 is fixedly connected with a cross rod 22; a bearing frame 4, which comprises a connecting rod 41 and a load platform 42, one end of the connecting rod 41 is connected with the cross rod 22, and the load platform 42 is connected with the other end of the connecting rod 41, and the load platform 42 is used for placing a fruit box; a driving assembly 3, which comprises a shock absorber 31, the top end of the shock absorber 31 is connected with the cross rod 22, and the driving assembly 3 further comprises an axle 32, which is rotatably connected with the bottom end of the shock absorber 31, and the axle 32 is provided with tires 33 at both ends; a brake 5 is arranged at the handle 12, a brake piece 6 is arranged on the axle 32, the brake 5 and the brake piece 6 are connected through a brake wire 7, and the brake 5 is used for controlling the brake piece 6 to brake the axle 32.

[0028] In the embodiments, a labor-saving trolley is provided, which is used for dealing with the complex terrain of an orchard, can reduce the labor intensity of workers, and improve the carrying efficiency.

[0029] The handle assembly 1 is used for controlling the direction and is convenient for workers to hold, the handle 12 and the fixed rod 11 are usually made of steel pipes, the handle 12 is fixed at the two ends of the fixed rod 11, the handle 12 is fixed on the fixed rod 11 in a welding manner, meanwhile, the outer surface of the handle 12 is also wrapped with a plastic shell, and the surface has anti-skid texture, which increases the stability and comfort of holding. The steel pipe is a high-strength seamless steel pipe, which has good compression resistance and bending resistance, and can meet the needs of the handle assembly 1 to withstand various external forces in the use process.

[0030] In an applicable embodiment, the handle 12 can also be made of high-strength engineering plastic material with anti-slip texture on the surface to increase the stability and comfort of holding. Inside the handle 12 is provided with mounting holes adapted to the fixed rod 11, the handle 12 is sleeved on both ends of the fixed rod 11 through interference fit, and high-strength bolts are used for reinforcement to ensure that the connection between the handle 12 and the fixed rod 11 is firm and reliable, and will not loosen or displace during long-term use.

[0031] The specific structure of the brake 5: the brake 5 is a rotatable brake handle installed on the handle 12 through a pin shaft, and a return spring is sleeved on the rotating shaft of the brake handle. When no external force is applied, the brake handle is in a natural stretched state. The inner side of the brake handle is connected to one end of the brake wire 7. When the brake handle is pulled, the brake wire 7 is pulled.

[0032] The two ends of the car rod 21 are connected with the fixed rod 11 and the cross rod 22 respectively, and are connected by welding. Before welding, the connecting parts of the car rod 21, the fixed rod 11 and the cross rod 22 are polished and cleaned to ensure the welding quality and the strength and reliability of the connection, so that the force and torque transmitted by the fixed rod 11 can be transmitted to the car rod 21 and then to the cross rod 22.

[0033] In this application, the connecting rod 41 and the cross rod 22 are fixedly connected, usually by welding. By welding the connecting rod 41 and the cross rod 22, the car body 2 and the carrier frame 4 form a whole, and the whole has strong structural rigidity and can effectively bear large static and dynamic loads. At the same time, no additional connecting parts are used, the overall appearance is simple, the structure is simple, the production and use are convenient, and the safety hidden danger caused by the loosening of the connecting parts is reduced. At the same time, welding ensures the strength and sealing performance of the connecting part, which is suitable for the structure of the carrier frame 4 which needs to stably bear the fruit box for a long time.

[0034] At the same time, in order to increase the structural strength of the carrier frame 4, a triangular reinforcing rib plate can also be welded at the inner corner of the connection between the connecting rod 41 and the cross rod 22. The material of the reinforcing rib plate is the same as that of the connecting rod 41 and the cross rod 22, and the thickness is selected according to the carrying capacity requirement of the carrier frame 4, usually 0.5-1 times the thickness of the connecting rod 41 and the cross rod 22. The shape and size of the reinforcing rib plate are calculated by mechanics to ensure that it can effectively enhance the strength and stability of the connecting part and improve the ability of the carrier frame 4 to bear the weight of the fruit box and various external forces in the transportation process. Welding the reinforcing rib plate significantly improves the torsional and bending resistance of the connecting part. In the process of carrying fruit boxes, especially in the case of shaking, jolting and other situations that may occur during transportation, the reinforcing rib plate can effectively disperse stress and prevent the weld from cracking due to concentrated stress, greatly enhancing the reliability and service life of the carrier frame 4.

[0035] The connecting rod 41 and the load platform 42 are integrally designed by welding, which ensures that the load platform 42 has sufficient strength and stability to withstand the weight of the fruit box placed thereon. The surface of the load platform 42 is provided with anti-skid protrusions to prevent the fruit box from sliding on the platform. Meanwhile, an upward blocking edge is arranged at the edge of the load platform 42 to prevent the fruit box from falling during transportation.

[0036] In an applicable embodiment, the connecting rod 41 and the cross bar 22 can also be detachably connected, such as by bolt connection. The cross bar 22 is pre-processed with mounting holes suitable for the connecting rod 41, and the end of the connecting rod 41 is also processed with bolt holes of the same specification. High-strength bolts are used, which are fastened with nuts and washers. The diameter and length of the bolts are calculated and determined according to the stress condition and material thickness of the connecting rod 41 and the cross bar 22. To prevent the bolts from loosening due to vibration and other reasons during long-term use, thread locking agent can be applied to the threads of the bolts, or spring washers and other anti-loosening measures can be used. At the same time, auxiliary support structures are added around the bolt connection, which include but are not limited to U-shaped support members installed outside the connection part of the connecting rod 41 and the cross bar 22, and the two ends of the support members are fixed to the connecting rod 41 and the cross bar 22 by bolts. The material of the U-shaped support member is high-strength steel, and its cross-sectional size and shape are designed according to the actual stress condition of the load carrier 4 to provide additional support force, share part of the load borne by the bolts, and further enhance the reliability of the connection part. The relative angle of the connecting rod 41 and the cross bar 22 can also be adjusted according to actual use requirements to adapt to different installation height and angle requirements of the load platform 42.

[0037] Bolt connection of the cross bar 22 and the connecting rod 41 facilitates disassembly and assembly. For maintenance and replacement of parts of the load carrier 4, it can be easily disassembled and replaced, which is convenient for maintenance. For disassembly during transportation, it can be easily disassembled and assembled, reducing the occupied area. Moreover, when problems are found in the connection part, individual bolts can be easily replaced, reducing maintenance costs. The auxiliary support structure shares part of the load borne by the bolts, reducing the stress on individual bolts and thus reducing the risk of bolt loosening or breaking. This enables the load carrier 4 to remain stable at the connection part when bearing a large weight or complex external force, improving the safety and durability of the entire load carrier 4.

[0038] The top end of the shock absorber 31 is fixed to the two ends of the crossbar 22 by bolts and mounting seats, which are welded integrally with the crossbar 22. The mounting seat is aligned with the bolt hole on the top end of the shock absorber 31, connected by high-strength bolts, equipped with spring washers and nuts to prevent the bolts from loosening. The mounting seat is welded integrally with the crossbar 22, greatly enhancing the rigidity of the overall structure. The crossbar 22, as an important part of the vehicle body 2, is stably welded with the shock absorber 31 mounting seat, which can ensure that the connection between the crossbar 22 and the shock absorber 31 will not loosen due to vibration and impact when driving on the complex orchard ground. This integrated welded structure makes the force transmission more direct and efficient, and can better buffer and disperse the impact force during vehicle driving through the shock absorber 31, effectively reducing the squeezing injury to apples. The spring washer can always maintain pressure on the nut by its elastic deformation, preventing the nut from loosening due to long-term use.

[0039] A mounting seat with bearing 34 is provided at the bottom end of the shock absorber 31, and the two ends of the wheel shaft 32 pass through the inner ring of the bearing 34, so that the wheel shaft 32 can rotate flexibly at the bottom end of the shock absorber 31. A shaft shoulder and a retainer ring are also provided at the two ends of the wheel shaft 32 to limit the axial displacement of the wheel shaft 32 and ensure the stability of the wheel shaft 32 during rotation. The mounting seat with bearing 34 at the bottom end of the shock absorber 31 allows the wheel shaft 32 to rotate flexibly at the bottom end of the shock absorber 31. The presence of the bearing 34 greatly reduces the friction of the wheel shaft 32 during rotation, improving the efficiency of rotation. This not only helps to reduce energy loss and make the vehicle more energy-efficient during driving, but also improves the handling performance of the vehicle. For example, when turning, the wheel shaft 32 can rotate more smoothly, making the vehicle more flexible in steering. In addition, the bearing 34 can withstand certain radial and axial loads, ensuring stable operation of the wheel shaft 32 under different working conditions.

[0040] The shaft shoulder and the retainer ring provided at the two ends of the wheel shaft 32 can effectively limit the axial displacement of the wheel shaft 32. The shaft shoulder, as part of the structure of the wheel shaft 32, provides a positioning reference for the retainer ring. The retainer ring, through cooperation with the shaft shoulder, prevents the wheel shaft 32 from moving in the axial direction.

[0041] The brake 5 is cantilevered on the handle 12 and is rotatably connected by a metal pin shaft passing through the mounting holes of the brake 5 and the handle 12. The pin shaft is locked at both ends by a split pin to prevent the pin shaft from falling off. The brake 5 is cantilevered on the handle 12 and is locked by the pin shaft and the split pin, so that the brake 5 has high stability while ensuring rotatable connection. The cantilever design allows the brake 5 to have sufficient space for operation, making it easy for the user to quickly and accurately apply the braking force. The pin shaft ensures that the connection between the brake 5 and the handle 12 can withstand repeated tension without deformation or breakage. The split pin can prevent the pin shaft from falling off, ensuring the reliability of the brake system and greatly improving the safety of the equipment during operation.

[0042] The brake 5 is cantilevered on the handle 12 and is rotatably connected by a metal pin shaft passing through the mounting holes of the brake 5 and the handle 12. The pin shaft is locked at both ends by a split pin to prevent the pin shaft from falling off. The brake 5 is cantilevered on the handle 12 and is locked by the pin shaft and the split pin, so that the brake 5 has high stability while ensuring rotatable connection. The cantilever design allows the brake 5 to have sufficient space for operation, making it easy for the user to quickly and accurately apply the braking force. The pin shaft ensures that the connection between the brake 5 and the handle 12 can withstand repeated tension without deformation or breakage. The split pin can prevent the pin shaft from falling off, ensuring the reliability of the brake system and greatly improving the safety of the equipment during operation.

[0043] A reset spring is installed between the brake 5 and the handle 12. One end of the spring is fixed in a specific slot of the handle 12, and the other end is connected to the corresponding protruding part of the brake 5. When the brake handle is released, the elastic force provided by the reset spring can quickly restore the brake 5 to the initial position, ensuring that the brake wire 7 is in a relaxed state and does not affect the normal operation of the equipment. The installation of the reset spring between the brake 5 and the handle 12 ensures that the brake handle quickly returns to the initial position after being released, ensuring that the brake wire 7 is in a relaxed state and does not affect the normal operation of the equipment, avoiding premature fatigue and damage caused by the brake wire 7 being in a tight state for a long time, and prolonging the service life of the brake wire 7. At the same time, the automatic reset of the brake 5 after each brake operation prepares for the next brake, improving the response speed of the brake system and the continuity of the operation.

[0044] The brake 6 is installed on one side of the wheel shaft 32 near the wheel, and is rigidly connected with the frame through a special metal mounting seat to ensure that the brake force can be stably applied during braking. The brake 6 mainly consists of a hand brake lever, brake shoes, a cam mechanism and a return spring. The hand brake lever is connected with the mounting seat through a rotating shaft and can rotate around the shaft. When the brake cable 7 transmits the pulling force, it pulls the hand brake lever connected with the brake cable 7, and the hand brake lever drives the cam mechanism to rotate. The rotation of the cam mechanism causes the two brake shoes to open outward and tightly hold the brake drum on the surface of the wheel shaft 32, and the friction between the two realizes the braking of the wheel shaft 32. This structure can generate strong braking force, which is enough to stop the wheel shaft 32 in a short time, ensuring that the device can quickly brake when encountering complex orchard road surfaces during operation. Moreover, the design of the cam mechanism makes the application of the brake force more uniform, avoiding uneven wear of the brake drum due to uneven local stress, and prolonging the service life of the brake drum and the brake shoes.

[0045] The brake cable 7 is woven from high-strength stainless steel wire, and the internal steel wire core ensures sufficient tensile strength to withstand the huge pulling force generated during braking without breaking. The outside is wrapped with a layer of rubber protective sleeve with good wear resistance and flexibility to prevent the brake cable 7 from being worn, corroded and scratched by external objects during use.

[0046] One end of the brake cable 7 is connected with the short arm end of the lever of the brake 5 through a ball joint, ensuring flexibility and reliability of the connection, so that the pulling force of the brake 5 can be accurately transmitted to the brake cable 7. The other end is connected with the hand brake lever of the hand brake 6 through a special U-shaped clamp. The U-shaped clamp tightly clamps the end of the brake cable 7 and is fastened with a nut to ensure that the brake cable 7 will not fall off during the transmission of the pulling force.

[0047] After the brake cable 7 is drawn out from the brake 5, it is routed along one side of the handle 12, the fixed rod 11, the pole 21 and the crossbar 22. During routing, plastic wire clips are used every few distances to fix the brake cable 7 on the handle 12 or the fixed rod 11 or the pole 21 or the crossbar 22 to prevent the brake cable 7 from shaking or shifting during operation of the device. At the same time, smooth metal guide sleeves are installed at some corner parts through which the brake cable 7 passes, reducing the friction of the brake cable 7 at the bending part to ensure smooth transmission of the brake force.

[0048] The brake wire 7 is laid along one side of the car pole 21 and the cross pole 22 after being led out from the brake piece 5 at the handle 12, and is fixed on the car pole 21 and the cross pole 22 by using wire clamps to avoid shaking or displacement of the brake wire 7 during operation of the equipment. In order to prevent the brake wire 7 from being abraded and eroded by the external environment, the brake wire 7 is externally sleeved with a protective sleeve made of wear-resistant and corrosion-resistant rubber material. At the end of the brake wire 7 connected with the brake piece 6, a specially designed connecting head is connected with the brake clamp block of the brake piece 6, so as to ensure that the pulling force of the brake wire 7 can be effectively transmitted to the brake piece 6 to achieve reliable braking of the wheel shaft 32. The reasonable wiring and fixing mode not only avoids damage of the brake wire 7 due to friction with the frame parts caused by shaking, but also ensures that the braking force can be transmitted to the brake piece 6 without loss, thereby improving the response speed and braking effect of the brake system. The use of the metal guide sleeve further reduces the stress concentration at the bending part of the brake wire 7, prolongs the service life of the brake wire 7, and also improves the hand feeling of brake operation, so that the braking process is more stable and reliable.

[0049] In an applicable embodiment, the car pole is a telescopic car pole, which comprises an inner pipe and an outer pipe arranged in a nested manner, a plurality of positioning clamping grooves are arranged at intervals along the extension direction of the outer pipe, the inner pipe comprises a positioning pin, and a spring is arranged in the inner pipe and abuts against the positioning pin, and the spring can push the positioning pin to pop out of the positioning clamping groove.

[0050] In the embodiment, the telescopic car pole 21 adopts the nested form of the inner pipe and the outer pipe. Both the inner pipe and the outer pipe are made of steel pipe material, which not only ensures the strength of the car pole 21, but also effectively reduces the overall weight. The outer diameter of the inner pipe is slightly smaller than the inner diameter of the outer pipe, and a suitable gap is maintained between the two to ensure that the inner pipe can smoothly slide in the outer pipe.

[0051] On the outer wall of the inner pipe, a positioning clamping groove is arranged at intervals along the extension direction of the outer pipe. The positioning clamping groove is an annular groove, and a movable positioning pin is arranged at the corresponding position of the inner pipe. The positioning pin is controlled by a spring. When it is necessary to adjust the length of the car pole 21, the positioning pin is retracted by pressing, at which time the inner pipe can be pulled to adjust to the appropriate length. After adjustment, the positioning pin pops out under the elastic force of the spring and is clamped into the corresponding positioning clamping groove, thereby locking the car pole 21 at the required length position.

[0052] In an applicable embodiment, two brake pieces 5 and two brake pieces 6 are arranged respectively, and two brake wires 7 are arranged, and the two brake wires 7 are connected with the two brake pieces 5 respectively and are sequentially connected with the brake pieces 6 through the fixed rod 11, the car pole 21, the cross pole 22 and the shock absorber 31.

[0053] In this embodiment, two brake pieces 5 are symmetrically installed on both sides of the handle 12, both of which are installed in a cantilevered manner, and are rotatably connected by a metal pin shaft penetrating the mounting holes reserved in the brake piece 5 and the handle 12. The ends of the pin shaft are also locked with a split pin to prevent falling off. This symmetrical installation design is convenient for users to operate, whether they are used to using their left hand or right hand, they can easily and quickly pull the brake piece 5.

[0054] Each brake piece 5 is internally integrated with a lever structure, with the pin shaft as the fulcrum. The short arm end of the lever is tightly connected to one end of the corresponding brake line 7 through a ball joint. The brake piece 5 body is also an ergonomically designed handle, with a high-strength engineering plastic surface wrapped with anti-slip texture to ensure comfort and stability during operation.

[0055] In an optional embodiment, a hook is also included, which is arranged at the middle of the crossbar 22 and is used to fix the fruit basket.

[0056] In this embodiment, the hook is arranged at the middle of the crossbar 22 and is fixed on the crossbar 22 by welding. The hook is used to bear part of the weight of the fruit basket and the pulling force and shaking that may occur during transportation. The hook body is designed in a "J" shape, with the curved part facilitating the suspension of the fruit basket and ensuring that the fruit basket does not easily slide off after being suspended. The opening width of the "J" shaped hook is slightly larger than the thickness of the edge of the fruit basket, ensuring that the fruit basket can be easily hung in, while not causing the fruit basket to shake due to excessive gap.

[0057] Inside the hook, reinforcing ribs are arranged along the length direction of the hook. The reinforcing ribs are triangular in shape and are uniformly distributed inside the hook, being integrally formed with the hook body. The reinforcing ribs are made of the same material as the hook, and their thickness and height are designed according to the weight of the fruit basket that the hook needs to bear. These reinforcing ribs can effectively enhance the strength of the hook, preventing deformation or breakage of the hook when bearing a large weight.

[0058] In use, align the edge of the fruit basket with the opening of the hook, and gently lift the fruit basket to make the edge of the fruit basket slide into the curved part of the hook. Due to the "J" design of the hook and the matching size of the opening and the edge of the fruit basket, the fruit basket can be stably suspended on the hook. In order to prevent the fruit basket from accidentally falling off during transportation due to vibration or jolt.

[0059] In an optional embodiment, a movable buckle can also be arranged at the opening of the hook. The buckle is installed on one side of the hook opening through a rotating shaft, and when the fruit basket is hung in, the buckle is rotated above the fruit basket to lock the edge of the fruit basket. The buckle and the hook are connected by a spring to ensure that the buckle always remains in the position of locking the fruit basket when not subjected to external force.

[0060] The hooks cooperate with the loading platform 42 of the carrier frame 4 to jointly fix the fruit boxes. When the fruit boxes are placed on the loading platform 42, one side of the fruit boxes can be hung on the hooks at the same time, which not only increases the stability of the fruit boxes, but also can disperse the pressure of the fruit boxes on the loading platform 42 to a certain extent. During the movement of the device, even if uneven road surfaces or acceleration, deceleration and the like are encountered, the double fixing mode of the hooks and the loading platform 42 can effectively prevent the fruit boxes from being displaced, tilted or falling off, and ensure the safety of the fruit boxes during transportation.

[0061] In an applicable embodiment, the tire 33 is a pneumatic tire 33.

[0062] In this embodiment, the pneumatic tire 33 is filled with gas inside, and the gas has good compressibility. When the device travels on uneven orchard road surfaces, such as encountering bumps, potholes or stones, the gas in the tire 33 can be quickly compressed, thereby effectively absorbing and dispersing the impact force. Compared with the solid tire 33, the pneumatic tire 33 can provide a softer cushioning effect, greatly reducing the vibration impact on the device itself and the fruits in the fruit boxes due to the bumps on the road. This not only protects the parts of the device and prolongs the service life of the device, but also avoids the damage of the fruits due to excessive vibration, and ensures the quality and integrity of the fruits.

[0063] The tread of the pneumatic tire 33 can be designed with various patterns according to different use scenarios. In the complex road surface environment of the orchard, a deep and carefully designed pattern, such as a combination of blocks and grooves, can provide strong grip on wet, muddy or soft ground. When the tire 33 contacts the ground, the block pattern increases the friction between the tire 33 and the ground, and the groove can quickly drain water or mud to prevent the tire 33 from slipping. This makes the device more stable when driving in the orchard, whether climbing, turning or driving on wet and slippery roads, and can maintain good handling performance, reducing the risk of accidents caused by tire 33 slipping.

[0064] The rolling resistance of the pneumatic tire 33 is relatively small, because it can deform elastically when it contacts the ground, and roll more smoothly. In contrast, the solid tire 33 has a larger hardness and a larger friction with the ground, resulting in an increase in rolling resistance and thus consuming more energy. Smaller rolling resistance means that the device needs to consume less power during driving, achieving energy-saving effect. In addition, the flexibility of the pneumatic tire 33 makes the device more flexible when turning, which can better adapt to the narrow passages and complex road conditions in the orchard, and improves the working efficiency of the device.

[0065] In an applicable embodiment, the two ends of the fixed rod 11 are telescopic extension rods, and the handle 12 is fixed on the telescopic extension rods, which are used to transport the fruit boxes out when the ground is difficult to move. The telescopic extension rods at both ends of the fixed rod 11 adopt a nested structure of inner and outer pipes similar to the telescopic cart rod 21. The same steel pipe material is selected, and the outer diameter of the inner pipe is slightly smaller than the inner diameter of the outer pipe to ensure smooth sliding. The gap between the two can ensure smooth sliding and prevent shaking.

[0066] An annular positioning slot is arranged on the outer wall of the inner pipe in the axial direction, and a movable positioning pin is arranged at the corresponding position of the outer pipe, which is controlled by a spring and a button. When the length needs to be adjusted, press the button, the positioning pin retracts, and the inner pipe can be pulled out; after adjusting to the appropriate length, release the button, the positioning pin pops out and is clamped into the slot, achieving firm locking. The handle 12 is fixed on the inner pipe end of the telescopic extension rod by welding.

[0067] When encountering difficult-to-move ground, such as narrow and rugged orchard paths, the operator can press the positioning pin button to lengthen the telescopic extension rods at both ends of the fixed rod 11 to the appropriate length, which is generally based on the actual space and the convenience of two-person operation.

[0068] The two operators hold the lengthened handles 12 on both sides, and through coordinated force, they push the device forward, effectively utilizing the strength of two people to overcome the resistance of complex ground and transport the fruit boxes out.

[0069] In an applicable embodiment, the load platform 42 is designed for double fruit boxes, which can directly load two fruit boxes to increase the loading capacity. The overall size of the load platform 42 is increased to accommodate the placement of double fruit boxes. The platform is made of steel pipe material to ensure strength while reducing weight. Two independent fruit box placement areas are provided on the surface of the platform, and the size of each area is designed according to the size of the standard fruit box with an edge to prevent the fruit box from sliding during transportation.

[0070] To ensure the stability of the load platform 42 when carrying two fruit boxes, multiple reinforcing ribs are added to the bottom of the platform. The reinforcing ribs are distributed in a crisscross pattern. The reinforcing ribs are made of the same steel pipe material as the platform, effectively enhancing the carrying capacity of the platform.

[0071] When loading fruit boxes, place two fruit boxes in the designated areas of the load platform 42 to ensure stable placement and even distribution of the center of gravity.

[0072] During the transportation of the fruit boxes by the pushing device, due to the increased load, the stability of the device should be properly noted. Especially when turning or passing through uneven road surfaces, the operator should slow down to prevent the fruit boxes from falling due to shaking.

[0073] In one applicable embodiment, it can also be a single wheel design, facilitating the adjustment of the direction. The wheel axle 32 is connected with a steering mechanism: the device adopts a single wheel design, and the wheel axle 32 is located at the center of the bottom of the device. The wheel axle 32 is connected with the vehicle body 2 through a steering mechanism which can rotate 360 degrees. The steering mechanism is composed of a rotating bearing 34 and a steering rod. The rotating bearing 34 is installed on the central mounting seat at the bottom of the vehicle body 2, and the wheel axle 32 penetrates the inner ring of the rotating bearing 34 and is fixed therewith. One end of the steering rod is fixedly connected with the outer ring of the rotating bearing 34, and the other end extends to a position convenient for the operator to operate, such as near the handle 12.

[0074] A pneumatic tire 33 with a larger diameter and a wider width is selected, which can provide better stability and passability. The tire 33 is installed on the wheel axle 32 through a hub, and the installation mode is the same as that of a conventional tire 33, which is fastened by using nuts and bolts to ensure that the tire 33 is firmly installed.

[0075] To ensure the balance of the device under the support of a single wheel, adjustable support feet are arranged on both sides of the vehicle body 2. The support feet adopt a telescopic design and are adjusted in height through threads. When the device is stationary, the support feet are lowered and the height is adjusted to keep the device stable; when the device is running, the support feet are retracted to avoid affecting the steering and running of the tire 33.

[0076] The operator controls the forward direction of the device by pushing the handle 12. When turning is needed, the operator rotates the steering rod, which drives the outer ring of the rotating bearing 34 to rotate, so that the wheel axle 32 and the tire 33 are turned together, realizing flexible direction adjustment.

[0077] During running, due to the single wheel design, the center of gravity of the device is high, and the operator needs to pay attention to keeping the balance of the device at all times, especially when accelerating, decelerating and turning, the speed should be appropriately controlled to prevent the device from rolling over. When passing through uneven road surfaces, the cushioning performance of the pneumatic tire 33 is utilized to pass slowly, ensuring the safety of the device and the fruit boxes.

[0078] Although the utility model has been illustrated and described by referring to some preferred embodiments of the utility model, it should be understood by those skilled in the art that the above content is a further detailed description of the utility model in combination with specific embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making a number of simple deductions or substitutions, without departing from the spirit and scope of the utility model.

Claims

1. A labor saving cart characterized by, The utility model relates to a fruit picking vehicle, including: A handle assembly includes two handles and a fixed rod, two handles are fixedly installed on the two ends of the fixed rod respectively; A vehicle body includes a vehicle rod, one end of the vehicle rod is fixedly connected with the fixed rod, and the other end of the vehicle rod is fixedly connected with a cross rod; A bearing frame includes a connecting rod and a load platform, one end of the connecting rod is connected with the cross rod, and the load platform is connected with the other end of the connecting rod, and the load platform is used for placing fruit boxes; A drive assembly includes a shock absorber, the top end of the shock absorber is connected with the cross rod, the drive assembly further includes an axle, the bottom end of the shock absorber is rotatably connected with the axle, and tires are arranged at the two ends of the axle; Brake parts are arranged on the handles, brake parts are arranged on the axle, the brake parts are connected with the brake parts through brake lines, and the brake parts are used for controlling the brake parts to brake the axle through the brake parts.

2. The labor-saving stroller of claim 1, wherein, The vehicle rod is a telescopic vehicle rod, including a nested inner tube and outer tube, a plurality of positioning clamping grooves are arranged at intervals along the extension direction of the outer tube, the inner tube includes a positioning pin, a spring is arranged in the inner tube, the spring is in abutment with the positioning pin, and the spring can push the positioning pin to pop out of the positioning clamping groove.

3. The labor-saving stroller of claim 1, wherein, The brake parts and the brake parts are respectively provided with two, the brake lines are provided with two, two brake lines are connected with two brake parts and are sequentially connected with brake parts through the fixed rod, the vehicle rod, the cross rod and the shock absorber.

4. The labor-saving stroller of claim 1, wherein, The shock absorber is provided with two, and the top ends of the two shock absorbers are arranged on the two ends of the cross rod.

5. The labor-saving stroller of claim 4, wherein, The bottom ends of the two shock absorbers are rotatably connected with the axle through bearings.

6. The labor-saving stroller of claim 1, wherein, Further including a hook, the hook is arranged at the middle of the cross rod, the hook is arranged in a J shape, a reinforcing rib is arranged along the length direction of the hook, the reinforcing rib is arranged inside the hook and is integrally formed with the hook, and the hook is used for fixing the fruit box.

7. The labor-saving stroller of claim 6, wherein, The opening of the hook is further provided with a buckle, the buckle is installed on one side of the opening of the hook through a rotating shaft, when the hook hooks the fruit box, the buckle is rotated above the fruit box, and the buckle can clamp the edge of the fruit box.

8. The labor-saving stroller of claim 1, wherein, The tire is a pneumatic tire, and the tread of the pneumatic tire is provided with anti-skid patterns.

9. The force reducing stroller of claim 1, wherein, The brake parts include a hand brake lever, a brake shoe, a cam mechanism and a return spring, the hand brake lever is connected with the brake line and the cam mechanism, when the brake line pulls the hand brake lever, the hand brake lever drives the cam mechanism to rotate, the cam mechanism drives the brake shoe to open outward to hold the axle, and the brake of the axle is realized.

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