CN219636009U

CN219636009U - Leaf spring

Info

Publication number: CN219636009U
Application number: CN202320256156.0U
Authority: CN
Inventors: 李敬
Original assignee: Guangzhou Baiyun Leaf Spring Factory Co ltd
Current assignee: Guangzhou Baiyun Leaf Spring Factory Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-09-05
Anticipated expiration: 2033-02-17

Abstract

The utility model provides a leaf spring, which comprises a strip-shaped body with a first end and a second end, wherein the first end is provided with a mounting hole, the mounting hole is used for penetrating a connecting piece to mount the leaf spring on a folding box, the second end is provided with a yielding gap for avoiding the main body structure of the folding box and a protective hole for penetrating a safety rope, the yielding gap and the protective hole are respectively arranged on two sides of the second end, and at least two protective holes are arranged along the length direction of the strip-shaped body. Through setting up leaf spring for the strip, can bear great effort, when its installation is in folding case, can be when the headwall is folding pressurized and accumulate elasticity to can avoid the headwall to cause the impact to the chassis, elasticity slow release when the headwall stands up, supplementary headwall stands up, reduces intensity of labour. In addition, set up the protection hole on the strip body for wear to establish wire rope, spring up when avoiding leaf spring disconnection and hurt the people, improve security performance.

Description

Leaf spring

Technical Field

The utility model relates to the technical field of springs, in particular to a leaf spring.

Background

The folding box is a type of rack container that includes a cargo bed and foldable end walls at both ends of the bed. Under the empty box condition, the end wall can be folded onto the underframe, and then the folded boxes after folding are linked together, so that the occupied space of the folded boxes can be reduced, the wharf hoisting times are reduced, the cost of transporting, storing and hoisting the wharf of the empty box is also reduced, and the folded boxes are favored by more and more customers.

The end walls at the two ends of the chassis of the folding box have large weight, and when the end walls are folded to the upper surface of the chassis from a standing state or to a vertical position from a folded state, large impact is easily generated, and the labor intensity is also large, so that a device capable of reducing the labor intensity and relieving the impact is needed.

Disclosure of Invention

The utility model aims to provide a leaf spring which can reduce the labor intensity of operating a folding box and reduce impact.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a leaf spring which can generate elastic deformation when being pressed and can restore to original shape when being released, wherein the leaf spring comprises a strip-shaped body with a first end and a second end, the first end is provided with a mounting hole, the mounting hole is used for penetrating a connecting piece to mount the leaf spring on a folding box, the second end is provided with a yielding gap for avoiding the main structure of the folding box and a protective hole for penetrating a safety rope, and the yielding gap and the protective hole are respectively arranged at two sides of the second end, wherein at least two protective holes are arranged along the length direction of the strip-shaped body.

In one embodiment, the upper and lower surfaces of the strip-shaped body are both subjected to a shot blasting process.

Preferably, the surface coverage of the shot peening process is greater than or equal to 90%.

In one embodiment, the surface of the strip-shaped body is sprayed with rust-proof paint through an electrophoresis process.

Optionally, the strip-shaped body is made of 55CrMn or 60 CrMnB.

In one embodiment, the upper and lower surfaces of the second end are both inclined along the first end toward the second end.

In one embodiment, the guard holes have the same or different pore sizes.

In one embodiment, both sides of the strip-shaped body are rounded.

In one embodiment, the cross section of the first end is formed by a rectangle and two semicircles, and the two semicircles are respectively connected to two sides of the rectangle.

The technical scheme provided by the utility model has the beneficial effects that: through setting up leaf spring for the strip, can bear great effort, when its installation is in folding case, can be when the headwall is folding pressurized and accumulate elasticity to can avoid the headwall to cause the impact to the chassis, elasticity slow release when the headwall stands up, supplementary headwall stands up, reduces intensity of labour. In addition, set up the protection hole on the strip body for wear to establish wire rope, spring up when avoiding leaf spring disconnection and hurt the people, improve security performance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments of the present utility model will be briefly described below.

Fig. 1 is a schematic structural view of a leaf spring according to an embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While the utility model is susceptible of embodiment in the drawings, it is to be understood that the utility model may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided to provide a more thorough and complete understanding of the utility model. It should be understood that the drawings and embodiments of the utility model are for illustration purposes only and are not intended to limit the scope of the present utility model.

It should be understood that the various steps recited in the method embodiments of the present utility model may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the utility model is not limited in this respect.

The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "coupled" may be either directly or indirectly through intervening components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below.

It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between devices, modules, or units and not necessarily for defining the order in which such devices, modules, or units perform their functions or are interdependent.

Referring to fig. 1, the present utility model relates to a leaf spring, which is suitable for a folding box, is compressed to accumulate elastic force when an end wall of the folding box is folded, can prevent the end wall from impacting a chassis of the folding box, slowly releases pressure when the end wall is erected, assists in the erection of the end wall, and reduces labor intensity.

The leaf spring is preferably made of SUP9 (55 CrMn) or SUP11 (60 CrMnB) in a strip shape, and has good rigidity and elasticity.

Specifically, the leaf spring comprises a strip-shaped body 10, the strip-shaped body is provided with a first end 11 and a second end 12 which are opposite, the first end 11 is provided with a mounting hole 111 for mounting a connecting piece such as a penetrating bolt on the folding box, the second end 12 is provided with a yielding gap 121 at one side, and the yielding gap 121 is used for avoiding the main body structure of the folding box. When the leaf spring is installed in the folding box, the first end 11 is abutted against the underframe, and the second end 12 is tilted.

Further, the second end 12 is provided with a protection hole 122 at the other side, and is used for penetrating a safety rope to be connected with the folding box main body, so that the phenomenon that the leaf spring flies to hurt people when being broken due to overlarge stress is avoided, and the safety performance of the leaf spring in the folding box application is improved.

The guard holes 122 are at least two, and are arranged along the length direction of the strip-shaped body 10, and may have the same or different pore diameters.

Further, the upper and lower surfaces of the strip-shaped body 10 are treated by a shot blasting process, and the surface coverage rate of the shot blasting process is more than or equal to 90%, so that the fatigue of the part is reduced, and the service life is prolonged.

In one embodiment, the surface of the strip-shaped body 10 is sprayed with rust-proof paint through an electrophoresis process, so that the steel plate spring is prevented from being rusted after long-term use, and the service life is prolonged.

In one embodiment, the upper and lower surfaces of the second end 12 are inclined along the first end toward the second end, reducing the rigidity and weight of the second end 12.

In one embodiment, both sides of the strip-shaped body 10 are rounded.

The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept described above. Such as the above-mentioned features and the features having similar functions (but not limited to) of the utility model.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.

Claims

1. The utility model provides a leaf spring can produce elastic deformation when pressing, resumes the original state when releasing the pressure, its characterized in that, including the strip body that has first end and second end, first end is equipped with the mounting hole, the mounting hole is used for wearing to establish the connecting piece and installs this leaf spring on folding box, the second end has been seted up and is used for avoiding folding box body structure's breach of stepping down and is used for wearing to establish the guard aperture of safety rope, the both sides of second end are located respectively with the guard aperture to the breach of stepping down, wherein, the guard aperture has been seted up at least two and has been arranged along the length direction of strip body.

2. The leaf spring of claim 1 wherein the upper and lower surfaces of the strip-like body are each subjected to a shot peening process.

3. The leaf spring of claim 2 wherein the surface coverage of the shot peening process is greater than or equal to 90%.

4. The leaf spring of claim 1 wherein the surface of the strip-like body is sprayed with rust inhibitive paint by an electrophoretic process.

5. The leaf spring of claim 1 wherein the strip-like body is made of 55CrMn or 60 CrMnB.

6. The leaf spring of claim 1 wherein the upper and lower surfaces of the second end are each inclined along the first end toward the second end.

7. The leaf spring of claim 1 wherein the guard holes have the same or different pore sizes.

8. The leaf spring of claim 1 wherein the strip-shaped body is rounded on both sides.

9. The leaf spring of claim 8 wherein the first end has a cross-section formed by a rectangle and two semicircles, the semicircles being connected to opposite sides of the rectangle.