Trolley axle with impact resistance function

Abstract

This utility model provides a handcart axle with impact resistance, including a support axle, a wheel mounting bracket, a buffer leaf spring, a car body mounting bracket, and wheel mounting bolts. The wheel mounting bracket is rotatably mounted on the top of both ends of the support axle, and the buffer leaf spring is mounted on the outer side of both ends of the support axle. The car body mounting bracket is rotatably mounted on top of the buffer leaf spring. The wheel mounting bolts connect the wheel mounting bracket to the wheel. The support axle and buffer leaf spring configuration of this utility model effectively reduces vibration, allowing the two sets of wheels to be independently cushioned, and preventing wheel vibration from being transmitted to the car body through the axle.

Description

Technical Field

[0001] This utility model relates to the field of handcart technology, and in particular to a handcart axle with impact resistance. Background Technology

[0002] Handcarts, as a common material handling tool, are widely used in construction sites, agricultural production, warehousing logistics, and many other fields. Traditional handcarts typically use a single, rigid axle with wheels mounted on both ends via bearings. While simple and reliable, this structure has poor impact resistance. When traveling on uneven surfaces, if one wheel hits an obstacle or gets stuck in a pothole, the impact force is directly transmitted to the cart body through the rigid axle. This not only causes the load to bounce or even slip, but also causes severe vibration for the operator, increasing labor intensity and making the cart structure more susceptible to fatigue damage over time. However, existing handcart axles still suffer from the problem of not effectively reducing vibration, the two sets of wheels not being able to independently cushion the impact, and wheel vibrations easily being transmitted to the cart body through the axle.

[0003] Therefore, it is essential to invent a handcart axle with impact resistance. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a handcart axle with impact resistance, solving the issues that existing handcart axles still cannot effectively reduce vibration, the two sets of wheels cannot independently buffer vibration, and wheel vibration is easily transmitted to the cart body through the axle. A handcart axle with impact resistance includes a support axle, a wheel mounting bracket, a buffer leaf spring, a cart body mounting bracket, and wheel mounting bolts. The wheel mounting bracket is rotatably mounted on the top of both ends of the support axle, and the buffer leaf spring is mounted on the outer side of both ends of the support axle. The cart body mounting bracket is rotatably mounted on top of the buffer leaf spring. The wheel mounting bolts connect the wheel mounting bracket to the wheel.

[0005] The support shaft includes segmented shafts, mating supports, connecting springs, a vehicle body mounting plate, and limiting steel cables. The limiting steel cables are fixedly installed between the two segments of shafts, and the mating supports are rotatably installed inside the inner end of the two segments of shafts. The connecting springs are fixedly installed above the mating supports, and the vehicle body mounting plate is rotatably installed above the connecting springs. The vehicle body mounting plate is fixedly installed at the bottom of the vehicle body.

[0006] The buffer leaf spring includes a leaf spring body, a rotating base, an adjusting platform, and a support bearing. The two ends of the leaf spring body are mounted on the bottom of the vehicle body via a vehicle body mounting bracket, and the rotating base is fixedly mounted on top of the leaf spring body. The adjusting platform is rotatably mounted inside the rotating base, and the support bearing is mounted between the support shaft and the wheel mounting bracket.

[0007] The segmented shafts inside the support shaft body are made of two steel metal shafts and are pulled and limited by limiting steel cables; when the crossover between the two sets of segmented shafts is too large, the limiting steel cables will tightly pull the segmented shafts; the segmented shafts are fulcrumd by buffer leaf springs, and can rotate under pressure, and are kept in a proper position by the pull of connecting tension springs.

[0008] The rotating base inside the buffer leaf spring forms a base for the adjustment table to rotate, and the adjustment table is a rectangular steel block. The interior of the adjustment table is provided with through holes for mounting the support shaft. The adjustment table can drive the support shaft to rotate inside the rotating base.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The design of the support axle of this utility model allows the wheels on both sides to move independently through two internal segmented axles, and rotates with a buffer leaf spring as the fulcrum, thereby avoiding direct transmission of impact to the vehicle body. The internal connecting tension spring is responsible for providing restoring force and absorbing vibration, while the limiting steel cable is used to limit the maximum crossover of the segmented axles to ensure safety. Finally, the support axle is connected to the vehicle body through the vehicle body mounting plate, together achieving the key functions of impact resistance and leveling.

[0010] The buffer leaf spring of this invention directly absorbs and reduces the impact and vibration from the road surface through the elastic deformation of the leaf spring body, and transfers the weight it bears to the vehicle mounting frame. At the same time, the rotating base above it and the adjustment platform together form a rotating hub, which allows the support shaft installed inside the adjustment platform to make slight twists, thereby giving the entire axle system additional degrees of freedom to adapt to uneven road surfaces. It works in conjunction with the segmented movement of the support shaft to improve the stability and impact resistance of the handcart. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is an enlarged view of section A of this utility model.

[0013] Figure 3 This is an enlarged view of section B of this utility model.

[0014] In the picture: Support shaft 1, segmented shaft 11, mating support 12, connecting tension spring 13, vehicle body mounting plate 14, limiting steel cable 15, wheel mounting bracket 2, buffer leaf spring 3, leaf spring body 31, rotating base 32, adjusting platform 33, support bearing 34, vehicle body mounting bracket 4, wheel mounting bolt 5. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0016] As attached Figure 1 To be continued Figure 3 As shown.

[0017] This utility model provides a handcart axle with impact resistance, including a support axle 1, a wheel mounting bracket 2, a buffer leaf spring 3, a car body mounting bracket 4, and wheel mounting bolts 5. The wheel mounting bracket 2 is rotatably mounted on the top of both ends of the support axle 1, and the buffer leaf spring 3 is mounted on the outer side of both ends of the support axle 1. The car body mounting bracket 4 is rotatably mounted on the top of the buffer leaf spring 3. The wheel mounting bolts 5 connect the wheel mounting bracket 2 to the wheel.

[0018] The support shaft 1 includes segmented shafts 11, a mating support 12, a connecting spring 13, a vehicle body mounting plate 14, and a limiting steel cable 15. The limiting steel cable 15 is fixedly installed between the two segments of shafts 11, and the mating support 12 is rotatably installed inside the inner end of the two segments of shafts 11. The connecting spring 13 is fixedly installed above the mating support 12, and the vehicle body mounting plate 14 is rotatably installed above the connecting spring 13. The vehicle body mounting plate 14 is fixedly installed at the bottom of the vehicle body.

[0019] The buffer leaf spring 3 includes a leaf spring body 31, a rotating base 32, an adjusting platform 33, and a support bearing 34. The two ends of the leaf spring body 31 are mounted on the bottom of the vehicle body via a vehicle body mounting bracket 4. The rotating base 32 is fixedly mounted above the leaf spring body 31. The adjusting platform 33 is rotatably mounted inside the rotating base 32, and the support bearing 34 is mounted between the support shaft 1 and the wheel mounting bracket 2.

[0020] The segmented shaft 11 inside the support shaft 1 uses two steel metal shafts and is pulled and limited by the limiting steel cable 15; when the crossover between the two sets of segmented shafts 11 is too large, the limiting steel cable 15 will tightly pull the segmented shafts 11; the segmented shaft 11 uses the buffer leaf spring 3 as a fulcrum, and can rotate after being subjected to pressure, and is kept in a suitable position by the pull of the connecting tension spring 13.

[0021] The rotating base 32 inside the buffer leaf spring 3 forms a base for the adjustment platform 33 to rotate, and the adjustment platform 33 is a rectangular steel metal block. The interior of the adjustment platform 33 is provided with a through hole for mounting the support shaft 1. The adjustment platform 33 can drive the support shaft 1 to rotate inside the rotating base 32.

[0022] The overall working principle of this impact-resistant handcart axle is a multi-stage buffering and adaptive linkage process. Its core lies in the synergistic effect of the supporting axle 1 and the buffer leaf spring 3. When one wheel of the handcart encounters an obstacle, the impact force is first transmitted to the segmented axle 11 on that side through the wheel mounting bracket 2. This segmented axle 11 immediately rotates upwards, using the buffer leaf spring 3 as a fulcrum, overcoming the tension of the connecting spring 13. This action constitutes the first stage of buffering, effectively preventing the cart body from tilting violently through the cart mounting bracket 4.

[0023] Meanwhile, the leaf spring body 31 of the buffer leaf spring 3, as the main elastic element, deforms, providing a second level of cushioning to absorb and disperse impact energy. The rotating base 32 and adjusting platform 33 mounted above the leaf spring body 31 allow the entire support axle assembly to undergo slight torsion, which is the third level of adaptive adjustment, ensuring that the wheel can better contact the road surface. Throughout the process, the limiting steel cable 15 tightly holds the two sections of the axle 11 to prevent excessive crossover and ensure structural safety.

[0024] Once the obstacle is overcome, the segmented axle 11 will return to its initial equilibrium position under the restoring force of the connecting tension spring 13. Meanwhile, the support bearing 34 ensures the smooth rotation of the wheel mounting bracket 2 relative to the support axle 1. Finally, the wheel, fixed by the wheel mounting bolts 5, and the vehicle body, connected to the mating support 12 via the vehicle body mounting plate 14, together form a complete, efficient, and stable impact-resistant system.

[0025] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A handcart axle with impact resistance, characterized in that: It includes a support axle (1), a wheel mounting bracket (2), a buffer leaf spring (3), a body mounting bracket (4), and a wheel mounting bolt (5), wherein: the wheel mounting bracket (2) is rotatably mounted on the top of both ends of the support axle (1), and the buffer leaf spring (3) is mounted on the outer side of both ends of the support axle (1), and the body mounting bracket (4) is rotatably mounted on the top of the buffer leaf spring (3); the wheel mounting bolt (5) connects the wheel mounting bracket (2) to the wheel.

2. The handcart axle with impact resistance as described in claim 1, characterized in that: The supporting shaft (1) includes a segmented shaft (11), a mating support (12), a connecting spring (13), a vehicle body mounting plate (14), and a limiting steel cable (15). The limiting steel cable (15) is fixedly installed between the two segments of the shaft (11), and the mating support (12) is rotatably installed inside the inner end of the two segments of the shaft (11). The connecting spring (13) is fixedly installed above the mating support (12), and the vehicle body mounting plate (14) is rotatably installed above the connecting spring (13). The vehicle body mounting plate (14) is fixedly installed at the bottom of the vehicle body.

3. The handcart axle with impact resistance as described in claim 1, characterized in that: The buffer leaf spring (3) includes a leaf spring body (31), a rotating base (32), an adjusting platform (33), and a support bearing (34). The two ends of the leaf spring body (31) are mounted on the bottom of the vehicle body through the vehicle body mounting bracket (4). The rotating base (32) is fixedly mounted on the top of the leaf spring body (31). The adjusting platform (33) is rotatably mounted inside the rotating base (32), and the support bearing (34) is mounted between the support shaft (1) and the wheel mounting bracket (2).

4. A handcart axle with impact resistance as described in claim 2, characterized in that: The segmented shaft (11) inside the support shaft (1) uses two steel metal shafts and is pulled and limited by a limiting steel cable (15); when the crossover between the two sets of segmented shafts (11) is too large, the limiting steel cable (15) will tightly pull the segmented shaft (11); the segmented shaft (11) is fulcrumd by a buffer leaf spring (3), and can rotate after being subjected to pressure, and is kept in a suitable position by the pull of the connecting tension spring (13).

5. A handcart axle with impact resistance as described in claim 3, characterized in that: The rotating base (32) inside the buffer leaf spring (3) forms a base for the adjustment table (33) to rotate, and the adjustment table (33) is a rectangular steel metal block. The interior of the adjustment table (33) is provided with a through hole for the support shaft (1) to be installed. The adjustment table (33) can drive the support shaft (1) to rotate inside the rotating base (32).

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