A handcart with a suspension device

Abstract

This utility model discloses a handcart with a suspension device, relating to the field of handcarts. The utility model includes a cart body, a frame, wheels, and a sliding plate. The bottom of the cart body is equipped with a guide rail, and the sliding plate is mounted on the bottom of the cart body via a matching guide rail. A handle is provided on one side of the sliding plate, and the handle base is connected to the sliding plate via four symmetrical sets of bolts. The handle is hinged to the handle base via a pin. Through the sliding engagement structure of the guide rail at the bottom of the cart body and the sliding plate, combined with a manually operated locking system on both sides of the front, workers can press down the handle to unlock it when cleaning is needed, and then pull the hinged handle on the side of the sliding plate to completely pull the sliding plate out of the cart body along the rail, achieving thorough removal of residual adhering materials. Simultaneously, a baffle fixed to the front of the frame effectively blocks the flow of mud and wastewater during sliding plate removal or in wet working environments, reducing splashing of mud and wastewater and accelerating water drainage, thus improving overall cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of handcarts, specifically a handcart with a suspension device. Background Technology

[0002] Construction site handcarts are indispensable basic transfer equipment in construction sites, road construction, municipal maintenance and other scenarios. They are mainly responsible for short-distance transportation of loose or sticky materials such as sand, gravel, concrete mix, construction waste and earthwork.

[0003] Traditional handcarts typically consist of a fixed bucket, frame, wheels, and handles, with the bucket usually rigidly connected to the frame by welding or bolts. While this structure meets basic handling needs, it tends to accumulate adhesive materials over long-term use, requiring manual cleaning inside the bucket, which is inefficient and poses safety hazards. Furthermore, some designs attempt to unload by tipping the bucket, but the tipping angle is limited and cannot completely remove hardened residue from the bottom of the bucket, reducing the equipment's reusability. Therefore, the inventors urgently needed to design a handcart with a suspension device to improve the ease of tool selection. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a handcart with a suspension device to solve the technical problem of the difficulty in cleaning the materials at the bottom of traditional construction site handcarts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a handcart with a suspension device, including a cart body, a frame, wheels, and a sliding plate. The bottom of the cart body is provided with a guide rail, and the sliding plate is mounted on the bottom of the cart body through a matching guide rail. A handle is provided on one side of the sliding plate, and the handle base is connected to the sliding plate through four symmetrical sets of bolts. The handle is hinged to the handle base through a pin.

[0006] By adopting the above technical solution, the guide rail and the slide plate at the bottom of the truck bed form a precision sliding pair structure, which allows the slide plate to be smoothly pulled along the set trajectory. Workers can achieve the labor-saving displacement of the slide plate by simply using the hinged handle.

[0007] Furthermore, a braking assembly is provided on the lower side of the frame. The braking assembly includes a friction block and a linkage lever. By squeezing the brake lever, the linkage lever presses down and drives the friction block to press against the tire surface to achieve deceleration.

[0008] By adopting the above technical solution, the braking component amplifies and transmits the operating force of squeezing the brake lever through the lever transmission principle, so that the linkage lever drives the friction block to press hard on the tire surface, significantly enhancing the braking performance.

[0009] Furthermore, a handlebar is provided on one side of the frame. The handlebar is hinged to the frame, and a bolt locking mechanism is provided at the hinge. Loosening the knob can adjust the pitch angle of the handlebar, and tightening it can fix the required angle.

[0010] By adopting the above technical solution, the side of the frame is hinged with an adjustable handlebar and equipped with a bolt locking mechanism. Workers can freely adjust the handlebar tilt angle after loosening the knob to obtain the best force application posture according to their height difference and the center of gravity distribution of the load.

[0011] Furthermore, the grip portion of the handle is covered with a rubber sleeve, which consists of an inner layer of shock-absorbing rubber and an outer layer of anti-slip rubber.

[0012] By adopting the above technical solution, the double-layer rubber sleeve covering the grip area effectively absorbs the vibration energy transmitted to the hand from vehicle bumps through the inner shock-absorbing rubber, reducing muscle fatigue and joint strain caused by long-term pushing.

[0013] Furthermore, a limiting component is provided on one side of the truck bed. The limiting component includes a locking cross plate and a U-shaped locking plate. The locking cross plate and the U-shaped locking plate lock the truck bed with bolts to achieve positional constraint of the truck bed in the lateral and longitudinal directions.

[0014] By adopting the above technical solution, the composite constraint structure formed by the U-shaped clamping plate and the clamping cross plate on the side of the truck bed acts simultaneously on the transverse outer wall and longitudinal bottom surface of the truck bed when the bolts are tightened, thus suppressing the displacement tendency of the truck bed under bumpy and inclined road conditions in both directions.

[0015] Furthermore, the limiting component is symmetrically provided with a latch on the front side. The latch includes a locking groove, which is fixed to the symmetrical position on the front side of the slide plate with bolts. A lock head is provided on the upper side of the locking groove, and a handle is provided on the upper side of the lock head. The lock head and the handle are hinged. When the slide plate moves along the guide rail to the tooling position, the lock head is engaged in the locking groove to form a rigid lock. Pressing down the handle causes the lock head to disengage from the locking groove to unlock, and the slide plate returns to a free displacement state.

[0016] By adopting the above technical solution, the locking mechanism symmetrically located at the front end of the slide plate, through the precise matching structure of the lock head and the lock groove, requires the worker to manually align the lock head and press it into the lock groove when the slide plate is fully pushed back to the tooling position, forming a rigid mechanical interlock, avoiding the risk of accidental loosening caused by vibration or impact of traditional pins.

[0017] Furthermore, a baffle is provided on one side of the latch, and the baffle is fixed to the frame with four sets of symmetrical screws. The front end of the baffle extends to form an L-shaped covering edge, and a drainage hole is opened at the bottom.

[0018] By adopting the above technical solution, the L-shaped covering edge of the baffle forms a continuous protective barrier along the front edge of the frame, effectively blocking the risk of injury to operators from mud and gravel splashed during the sliding plate pull-out.

[0019] In summary, the present invention has the following main advantages:

[0020] 1. This utility model utilizes a sliding cooperation structure between the guide rail at the bottom of the truck bed and the sliding plate, combined with a manually operated locking system on both sides at the front. When cleaning is required, the worker can press down the handle to unlock, and then pull the hinged handle on the side of the sliding plate to completely pull the sliding plate out of the truck bed along the rail, achieving thorough removal of residual adhering materials. At the same time, the baffle fixed to the front of the frame with an L-shaped covering edge and bottom drainage holes forms an effective barrier during sliding plate cleaning or in wet working environments, reducing the splashing of sludge and sewage and accelerating the drainage of accumulated water, thereby improving the overall cleaning efficiency.

[0021] 2. This utility model uses a braking system installed on the underside of the frame to amplify and transmit the force of squeezing the brake handle through a lever structure, so that the friction block strongly presses against the tire surface, ensuring that the fully loaded handcart can be reliably stopped even on slopes, effectively preventing rollover accidents. At the same time, an adjustable tilt handle is installed on the side of the frame through a hinge point with a locking device. The grip part is tightly covered with a double-layer rubber sleeve consisting of an inner shock-absorbing rubber and an outer anti-slip rubber, which absorbs pushing vibrations and ensures a stable grip. This dual optimization improves the comfort and overall control stability during long-term operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a front view structural diagram of the present utility model;

[0024] Figure 3 This is a side view of the structure of this utility model;

[0025] Figure 4 For the present utility model Figure 2 A magnified structural diagram of point A in the middle.

[0026] In the diagram: 1. Cargo bed; 2. Frame; 3. Wheels; 4. Limiting assembly; 401. U-shaped clamp; 402. Snap-fit ​​crossbar; 5. Handle; 6. Rubber sleeve; 7. Slide plate; 8. Lock; 801. Handle; 802. Lock head; 803. Lock groove; 9. Baffle; 10. Handle; 11. Braking assembly; 1101. Friction block; 1102. Linkage lever; 1103. Brake handle; 12. Bolt locking mechanism; 13. Guide rail. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In this embodiment:

[0029] A handcart with a suspension device, such as Figure 1-4 As shown, the equipment includes a truck bed 1, a frame 2, wheels 3, and a sliding plate 7. The bottom of the truck bed 1 is equipped with a guide rail 13. The sliding plate 7 is mounted on the bottom of the truck bed 1 by matching the guide rail 13. A handle 10 is provided on one side of the sliding plate 7. The base of the handle 10 is connected to the sliding plate 7 by four sets of symmetrical bolts. The handle 10 is hinged to the base of the handle 10 by a pin. The guide rail 13 at the bottom of the truck bed 1 and the sliding plate 7 form a precision sliding pair structure, which allows the sliding plate 7 to be smoothly pulled along a set trajectory. Workers can achieve the labor-saving displacement of the sliding plate 7 by simply using the hinged handle 10. At the same time, the base of the handle 10 is rigidly connected to the sliding plate 7 by four symmetrical bolts. The hinged pin structure allows the handle 10 to be folded and stored when not in use, which avoids the risk of snagging during transportation and ensures that sufficient leverage arm is provided during the pulling operation, so as to achieve efficient cleaning of construction waste and reasonable optimization of equipment space.

[0030] See Figure 1 , Figure 2 The lower side of the frame 2 is equipped with a braking assembly 11, which includes a friction block 1101 and a linkage lever 1102. By squeezing the brake handle 1103, the linkage lever 1102 pushes down and drives the friction block 1101 to press against the tire tread of the wheel 3 to achieve deceleration. The braking assembly 11 amplifies and transmits the operating force of squeezing the brake handle 1103 through the lever transmission principle, so that the linkage lever 1102 drives the friction block 1101 to press against the tire tread of the wheel 3, which significantly enhances the braking efficiency. At the same time, this structure directly applies the braking force to the rotating surface of the wheel 3, overcomes the defect of traditional axle brakes that are prone to slipping in muddy environments, and ensures that the fully loaded handcart can still achieve reliable deceleration in dangerous working conditions such as slopes and slippery roads, which greatly improves the safety redundancy of the construction site transportation process.

[0031] See Figure 1 , Figure 2A handle 5 is provided on one side of the frame 2. The handle 5 is hinged to the frame 2. A bolt locking mechanism 12 is provided at the hinge. The tilt angle of the handle 5 can be adjusted by loosening the knob and fixed at the required angle by tightening it. The adjustable handle 5 is hinged to the side of the frame 2 and equipped with a bolt locking mechanism 12. Workers can adjust the tilt angle of the handle by loosening the bolts according to their height and the center of gravity distribution of the load to obtain the best force application posture. At the same time, the rigid support structure formed after tightening and locking completely eliminates the adjustment limitations of the traditional welded fixed handle. It not only adapts to the needs of diverse working scenarios, but also ensures the stable force transmission characteristics of the operating mechanism during the pushing process.

[0032] See Figure 1 The grip part of the handlebar 5 is covered with a rubber sleeve 6. The rubber sleeve 6 consists of an inner layer of shock-absorbing rubber and an outer layer of anti-slip rubber. The double-layer rubber sleeve 6 covering the grip part effectively absorbs the vibration energy transmitted to the hand by the bumps of the vehicle through the inner layer of shock-absorbing rubber, reducing muscle fatigue and joint strain caused by long-term pushing. At the same time, the outer layer of anti-slip rubber can maintain a high coefficient of friction in harsh environments such as rain, fog, and mud, preventing the hand from slipping and losing control. The dual protection design enhances the reliability of human-machine interaction while improving operating comfort.

[0033] See Figure 1 , Figure 2 , Figure 3 A limiting component 4 is provided on one side of the truck bed 1. The limiting component 4 includes a locking horizontal plate 402 and a U-shaped locking plate 401. The locking horizontal plate 402 and the U-shaped locking plate 401 lock the truck bed 1 with bolts to achieve the position constraint of the truck bed 1 in the lateral and longitudinal directions, and indirectly achieve the position constraint of the slide plate 7 in the tooling position. The composite constraint structure formed by the U-shaped locking plate 401 and the locking horizontal plate 402 on the side of the truck bed 1 acts on the lateral outer wall and longitudinal bottom surface of the truck bed 1 simultaneously when the bolts are tightened, suppressing the displacement tendency of the truck bed 1 under bumpy and inclined road conditions in both directions. At the same time, this double locking mechanism firmly restricts the truck bed 1 to the predetermined work position, thereby indirectly ensuring that the slide plate 7 always maintains precise alignment with the guide rail 13 in the tooling position, and avoiding the off-center friction or jamming phenomenon of the slide plate 7 caused by the slight movement of the truck bed 1.

[0034] See Figure 1 , Figure 2 , Figure 3 , Figure 4A latch 8 is symmetrically provided on the front side of the limiting component 4. The latch 8 includes a locking groove 803, which is fixed to the front side of the slide plate 7 by bolts. A lock head 802 is provided on the upper side of the locking groove 803, and a handle 801 is provided on the upper side of the lock head 802. The lock head 802 and the handle 801 are hinged. When the slide plate 7 moves along the guide rail 13 to the tooling position, the lock head 802 engages with the locking groove 803 to form a rigid lock. Pressing down the handle 801 causes the lock head 802 to disengage from the locking groove 803 to unlock, and the slide plate 7 returns to a free displacement state. The locking mechanism at the front end of the slide plate 7 uses a precise matching structure between the locking head 802 and the locking groove 803. When the slide plate 7 is fully pushed back to the tooling position, the worker needs to manually align the locking head 802 and press it into the locking groove 803 to form a rigid mechanical interlock. This avoids the risk of accidental loosening caused by vibration or impact, which is common with traditional pins. At the same time, when unlocking, the downward pressing handle 801 drives the locking head 802 to disengage from the locking groove 803 through a hinge structure, thus releasing the slide plate 7 from constraint. The entire separation process does not require tool assistance, simplifying the process of sliding plate pulling and cleaning, and improving equipment maintenance efficiency and ease of operation.

[0035] See Figure 1 , Figure 2 , Figure 3 A baffle 9 is provided on one side of the latch 8. The baffle 9 is fixed to the frame 2 with four sets of symmetrical screws. The front end of the baffle 9 extends to form an L-shaped covering edge, and a drainage hole is opened at the bottom. The L-shaped covering edge of the baffle forms a continuous protective barrier along the front edge of the frame 2, which effectively blocks the risk of injury to the operator from the mud and gravel splashed when the slide plate 7 is pulled out. At the same time, the drainage hole at the bottom creates an efficient flow channel, allowing the washing wastewater and rainwater to be quickly discharged from the equipment, avoiding the accumulation of silt and corrosion of the vehicle body structure, thus improving cleaning safety and extending the service life of the equipment.

[0036] The implementation principle of this embodiment is as follows: The bottom of the truck bed 1 is provided with a guide rail 13, and the slide plate 7 is embedded in the rail. A handle 10 with a hinge pin is installed on its side. At the same time, a braking assembly 11 is provided on the lower side of the frame 2. Squeezing the brake handle 1103 drives the linkage lever 1102 to press down the friction block 1101 to press against the tire tread of the wheel 3 for braking. The side of the frame 2 is hinged to the handle 5, and the pitch angle is adjusted and fixed by the bolt locking mechanism 12. The handle 5 is covered with a rubber sleeve 6. The side of the truck bed 1 is locked by a U-shaped clamping plate 401 and a clamping cross plate 402 bolts to constrain displacement. At the same time, when cleaning: pressing down the handle 801 at the front end of the slide plate 7 causes the hinge lock head 802 to disengage from the lock groove 803 to unlock. The slide plate 7 is pulled out to remove accumulated material. After resetting, the lock head 802 needs to be manually aligned with the lock groove 803 and the handle 801 needs to be pressed down to lock. A baffle 9 with an L-shaped covering edge is installed on the front side of the frame 2, and a drainage hole is provided at the bottom to prevent splashing and drain water.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A trolley with a suspension arrangement, characterized in that: Including the car hopper (1), the frame (2), the wheel (3), the slide plate (7), the bottom of the car hopper (1) is equipped with the guide slide rail (13), the slide plate (7) is installed on the bottom of the car hopper (1) by matching the guide slide rail (13), one side of the slide plate (7) is equipped with the handle (10), the handle (10) base is connected with the slide plate (7) through four groups of symmetrical bolts, the handle (10) is hinged on the handle (10) base through the pin shaft.

2. Trolley with suspension according to claim 1, characterized in that: The lower side of the frame (2) is equipped with the brake assembly (11), the brake assembly (11) includes the friction block (1101) and the linkage lever (1102), the brake assembly (11) is driven by the friction block (1101) to the tire surface of the wheel (3) by pinching the brake handle (1103) and the linkage lever (1102) to realize deceleration.

3. The cart with a suspension device according to claim 1, characterized in that: One side of the frame (2) is equipped with the handle (5), the handle (5) is hinged on the frame (2), and the hinge is equipped with a bolt locking mechanism (12); the pitch angle of the handle (5) can be adjusted after the knob is loosened, and the desired angle is fixed after the knob is tightened.

4. Trolley with suspension according to claim 3, characterized in that: The grip part of the handle (5) is covered with a rubber sleeve (6), and the rubber sleeve (6) is composed of an inner layer of shock-absorbing rubber and an outer layer of anti-skid rubber.

5. The cart with a suspension device according to claim 1, characterized in that: One side of the car hopper (1) is equipped with a limiting assembly (4), the limiting assembly (4) includes a clamping cross plate (402) and a U-shaped clamping plate (401), the clamping cross plate (402) and the U-shaped clamping plate (401) are locked by bolts to fix the car hopper (1), to realize the position constraint of the car hopper (1) in the horizontal and vertical directions, and indirectly realize the position constraint of the slide plate (7) in the tool position.

6. Trolley with suspension according to claim 5, characterized in that: The front side of the limiting assembly (4) is symmetrically provided with a lock (8), the lock (8) includes a lock groove (803), the lock groove (803) is fixed on the front side of the slide plate (7) by bolts, the upper side of the lock groove (803) is provided with a lock head (802), the upper side of the lock head (802) is provided with a buckle hand (801), the lock head (802) and the buckle hand (801) are hinged structures, when the slide plate (7) moves to the tool position along the guide slide rail (13), the lock head (802) is clamped into the lock groove (803) to form a rigid lock; the lock head (802) is separated from the lock groove (803) by pressing the buckle hand (801) to realize unlocking, and the slide plate (7) returns to the free displacement state.

7. The trolley with a suspension device according to claim 6, characterized in that: One side of the lock (8) is equipped with a baffle (9), the baffle (9) is fixed on the frame (2) by four groups of symmetrical screws, the baffle (9) extends to form an L-shaped cover edge at the front end, and a drainage hole is formed at the bottom.

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