Buckle structure for connecting sling and oil tank

Abstract

The embodiment of the utility model discloses a buckle structure for connecting a sling and an oil tank. According to one specific implementation mode, the buckle structure comprises a T-shaped upper part, the length of the opposite side of one side of the upper part is larger than that of the opposite side of the other side of the upper part, and a lifting belt used for lifting an oil tank is provided with an installation hole matched with the upper end of the upper part; one end of the lower part is connected with the lower end part of the upper part, first clamping pieces are at least arranged on a first side and a second side close to the other end of the lower part, and the first side and the second side are two opposite sides; when the suspender oil tank is assembled, the suspender is located between the upper end of the upper part and the lower part, the lower part is embedded into a groove in the surface of the oil tank, and the first clamping piece is connected with a second clamping piece arranged in the groove in a clamped mode. The buckle structure can simplify the assembling operation of the oil tank and the hanging belt, a welding procedure does not need to be added, a special installation tool is not needed, and the buckle structure is beneficial to improving the production efficiency.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of fuel tank assembly processes, and particularly to a buckle structure for connecting a sling to a fuel tank. Background Art

[0002] During the production process of a fuel tank, there is a process of using a sling to lift and transport the fuel tank. The conventional installation methods for a plastic fuel tank and a sling are generally the following two: One is to weld a support on the fuel tank and fix the sling to the fuel tank through screws or expansion buckles; the other is to form a dovetail-shaped pit through a mold during the fuel tank molding process, and then fix the sling to the fuel tank through an expansion buckle.

[0003] However, the inventor found that the conventional fixing methods have the following problems: The first method requires adding a welding process during the fuel tank production process, increasing equipment and labor input; the second method requires using special tools for installation, has high requirements for the strength of the expansion buckle material, and has low fixing reliability.

[0004] The above information disclosed in this background art section is only used to enhance the understanding of the background of the concept of the present disclosure, and thus, it may include information that does not form the prior art known to those of ordinary skill in the art in this country. Summary of the Utility Model

[0005] The content part of the present disclosure is used to briefly introduce concepts, which will be described in detail in the following detailed implementation part. The content part of the present disclosure is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution. Some embodiments of the present disclosure propose a buckle structure for connecting a sling to a fuel tank, which can simplify the assembly operation and improve production efficiency.

[0006] Some embodiments of the present disclosure provide a buckle structure for connecting a sling to a fuel tank, including: a T-shaped upper member, in the upper end portion of the upper member, the length of one pair of opposite sides is greater than the length of the other pair of opposite sides, wherein, an installation hole adapted to the upper end portion of the upper member is provided on the sling for lifting the fuel tank; a three-dimensional lower member, one end of which is connected to the lower end portion of the upper member, and at least a first clamping member is provided on at least a first side and a second side close to the other end, wherein, the first side and the second side are opposite sides; wherein, when assembling the sling and the fuel tank, the sling is located between the upper end portion of the upper member and the lower member, the lower member is embedded in a groove on the fuel tank surface, and the first clamping member is clamped with a second clamping member provided in the groove.

[0007] In some embodiments, the upper end portion of the upper component is rectangular or oval; wherein, when fixing to the sling, the upper end portion of the upper component passes through the sling through the mounting hole, and the long side of the upper end portion rotates in the target direction, where the target direction is the direction perpendicular to the long side of the mounting hole.

[0008] In some embodiments, the lower component is a hollow structure, and windows for placing the first clamping member are provided on the first side surface and the second side surface; the first clamping member is an inverted triangle, the upper end of the first clamping member protrudes from the outer surface of the lower component, and the lower end of the first clamping member is fixedly connected to the edge of the window.

[0009] In some embodiments, the lower component is made of an elastomeric material, wherein the elastomeric material includes at least one of the following: polyoxymethylene (POM), polypropylene (PP).

[0010] In some embodiments, the buckle structure further includes at least one gasket, the at least one gasket is located between the upper end portion of the upper component and the lower component, and the size of the gasket is at least larger than the short side size of the mounting hole; wherein, when fixing to the sling, the sling is located between the upper end portion of the upper component and the at least one gasket.

[0011] In some embodiments, the at least one gasket includes a circular gasket and a rectangular gasket, the circular gasket is located between the rectangular gasket and the upper end surface of the upper component, and the long side of the rectangular gasket intersects with the long side of the upper end portion of the upper component in the projection direction.

[0012] In some embodiments, the buckle structure is an integrally formed structure.

[0013] In some embodiments, an external thread is formed on the lower end portion of the upper component, and an internal threaded hole is formed at the center position of the end surface where the lower component is connected to the upper component; wherein, by adjusting the length of the lower end portion screwed into the internal threaded hole, it is possible to adapt to slings of different thicknesses.

[0014] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: The buckle structure for connecting the sling and the fuel tank in some embodiments of the present disclosure can simplify the assembly operation and improve the production efficiency. Specifically, the buckle structure of the present disclosure includes a T-shaped upper component and a three-dimensional lower component. When assembling the sling and the fuel tank, first, the upper component can be fixed to the sling. At this time, the upper end portion of the upper component can pass through the sling through the mounting hole on the sling, so that the sling is located between the upper end portion of the upper component and the lower component. Then, the lower component can be embedded into the groove on the surface of the fuel tank. At this time, the first clamping member provided on the lower component can be engaged with the second clamping member provided in the groove. In this way, the sling and the fuel tank can be quickly installed through the buckle structure. Furthermore, it is possible to avoid adding a welding support process during the fuel tank production process and also does not require the use of special tools for installation, which helps to improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In combination with the accompanying drawings and with reference to the following specific embodiments, the above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn to scale.

[0016] Figure 1 FIG. 4 is a schematic structural diagram of some embodiments of the buckle structure of the present disclosure;

[0017] Figure 2 FIG. 8 is a schematic partial structural diagram of some embodiments of the fuel tank of the present disclosure;

[0018] Figures 3A to 3C FIG. 12 is a schematic process diagram of assembling a sling fuel tank using the buckle structure of the present disclosure;

[0019] Figure 4 FIG. 16 is a schematic cross-sectional structural diagram of the fixation of the buckle structure of the present disclosure with the sling and the fuel tank. Specific Embodiments

[0020] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0021] In addition, it should be noted that for the sake of convenience of description, only the parts related to the relevant utility model are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0022] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules, or units, and are not used to limit the order of the functions executed by these devices, modules, or units or their interdependent relationships.

[0023] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0024] The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] Figure 1 FIG. 37 shows a schematic structural diagram of the buckle structure for connecting the sling and the fuel tank of the present disclosure. As Figure 1As shown, the buckle structure may include an upper component 11 and a lower component 12. Among them, the upper component 11 is T-shaped, that is, the side view or cross-sectional view is T-shaped. In other words, the size of the upper end of the upper component 11 is larger than the size of the lower end. Here, the upper end is usually the end facing away from the ground when in use; and the lower end is usually the end facing the ground when in use. In addition, in the upper end of the upper component 11, the length of the opposite sides on one side may be greater than the length of the opposite sides on the other side. In other words, the length dimensions of the two sides of the upper end are different, so that the longer side can be used to achieve fixation with the sling. At the same time, a mounting hole may be provided on the sling used for hoisting the oil tank. The mounting hole is adapted to the upper end of the upper component and is used to achieve fixation of the sling and the buckle structure.

[0026] Here, the lower component 12 is three-dimensional, such as a cube, a cuboid, a cylinder, etc. One end of the lower component 12 is connected to the lower end of the upper component 11. In addition, the lower component 12 is provided with a first clamp 13 at least on the first side and the second side close to the other end. The first side and the second side are opposite sides. At the same time, a groove can be formed on the surface of the fuel tank. The groove is adapted to the shape of the lower component 12, and a second clamp is provided in the groove. The first clamp 13 and the second clamp are used to fix the fuel tank to the buckle structure.

[0027] It is understandable that when assembling the sling oil tank, the upper end of the upper component 11 can pass through the sling through the mounting hole on the sling, so that the sling is located between the upper end of the upper component 11 and the lower component 12, and then the longer side of the upper end is used to fix the snap-on structure to the sling. In addition, the lower component 12 can be embedded in the groove on the surface of the oil tank. At the same time, the first clamp 13 can be snapped with the second clamp set in the groove, so as to fix the snap-on structure to the oil tank. In this way, the sling and the oil tank can be quickly installed through the snap-on structure. Compared with the traditional fixing method through the support, it can avoid adding the welding support process in the oil tank production process, thereby reducing equipment and labor input, and improving production efficiency. Compared with the traditional fixing method through the dovetail shape pit and expansion buckle, no special tools are required for installation, the installation operation is quick and easy, and the versatility is high.

[0028] It should be noted that the upper end structure of the upper component 11 and the fixing method with the sling can be set according to actual requirements. As an example, the upper end can be an elastic clip structure. That is, the two sides with shorter opposite side lengths can be fixed, and receiving grooves are provided on the sides facing the two sides with longer opposite side lengths, and springs are provided in the grooves. The two sides with longer opposite side lengths can be movable, installed in the above-mentioned receiving grooves, and both are connected to the springs. In the natural state, the movable sides partially protrude from the receiving grooves, so that the lengths of the movable sides are greater than the lengths of the fixed sides. In this case, the shape and size of the mounting holes on the sling can be adapted to the shape and size of the upper end when the movable sides are pressed into the receiving grooves of the fixed sides. In this case, when passing through the mounting holes, the movable sides in the upper end can be pressed into the receiving grooves; after passing through the mounting holes, the movable sides can protrude from the receiving grooves. In this way, the sling can be fixed between the upper end of the upper component and the lower component.

[0029] In some embodiments, in order to simplify the buckle structure and improve the fixed installation efficiency, the upper end of the upper component 11 can be rectangular or oval. Similarly, the mounting holes on the sling can be rectangular or oval with matching dimensions, as Figure 3A shown. In this way, when the buckle structure 1 is fixed to the sling 2, after the upper end of the upper component 11 passes through the sling through the mounting hole, the long side of the upper end can rotate in the target direction, as Figure 3B shown. Among them, the target direction is generally perpendicular to the long side of the mounting hole. That is, after passing the buckle structure through the sling mounting hole, it can be rotated by a certain angle, such as 90°, so that the buckle structure can be installed on the sling.

[0030] It can be understood that since the mounting holes are rectangular or oval and the extending direction of the mounting holes is the same as the length direction of the sling, when fixing to the fuel tank, fine adjustment in the length direction can be achieved, thereby compensating for errors in production dimensions (such as between adjacent mounting holes, between fuel tank grooves, etc.).

[0031] In some embodiments, the structure of the above-mentioned first clip 13 is not limited either. As an example, the above-mentioned first clip 13 can also be an arc-shaped protrusion structure. In addition, the second clip provided in the groove on the fuel tank surface can be a matching card slot.

[0032] Optionally, the lower component 12 can be a hollow structure. And windows for placing the first clip 13 are provided on the first side and the second side of the lower component 12. As Figure 1As shown, the first card member 13 can be an inverted triangle. The upper end of the first card member 13 protrudes from the outer surface of the lower member 12, and the lower end of the first card member 13 is fixedly connected to the edge of the window. That is to say, the first card member 13 is only fixedly connected to the lower member 12 through the lower end, and the lower member 12 is a hollow structure. In this way, when it is embedded in the fuel tank groove, the first card members 13 on both sides can slightly contract towards the inside of the lower member 12.

[0033] It should be noted that in order to realize the fixation of the buckle structure and the fuel tank, the lower member 12 (especially the first card member 13) can be made of an elastomeric material. The elastomeric material here can include but is not limited to at least one of the following: polyoxymethylene POM (Polyoxymethylen), other reinforcing materials containing polyoxymethylene POM, polypropylene PP (Polypropylene), and so on.

[0034] In this case, the groove in the fuel tank can adopt the structure as Figure 2 shown. Second card members with arc-shaped protrusions are arranged on the opposite sides in the groove. When the buckle structure is fixed to the fuel tank, the second card member can be located at the upper end of the inverted triangle-shaped first card member, so as to realize the snap connection and fixation between the first card member and the second card member, and thus realize the fixation with the fuel tank, as Figure 3C and Figure 4 shown. Among them, 1 represents the buckle structure; 2 represents the sling; 3 represents the fuel tank.

[0035] Furthermore, the buckle structure of the present disclosure can also include at least one gasket 14. As Figure 1 shown, at least one gasket 14 is located between the upper end of the upper member 11 and the lower member 12, and the size of the gasket 14 is at least larger than the short side size of the mounting hole. In this way, when it is fixed to the sling, the sling can be located between the upper end of the upper member 11 and at least one gasket, so that the sling can be fixed between the upper end of the upper member 11 and at least one gasket.

[0036] The gasket 14 here can be a circular or square gasket. Optionally, as Figure 1As shown, at least one gasket 14 may include a circular gasket and a rectangular gasket. Among them, the circular gasket is located between the rectangular gasket and the upper end face of the upper component. It can be seen from the figure that the long side of the rectangular gasket and the long side of the upper end part of the upper component may intersect in the projection direction, and the size of the rectangular gasket may be larger than the size of the mounting hole. In this way, when the upper end part of the upper component 11 of the snap structure passes through the mounting hole, it can be turned to a direction perpendicular to the long side of the mounting hole, so as to be fixed to the upper end of the sling, and at least one gasket 14 can be fixed to the lower end of the sling. That is to say, the fixation between the snap structure and the sling can be realized through the upper end part of the upper component and at least one gasket. Optionally, the above-mentioned circular gasket and rectangular gasket may be integral. It should be noted that by setting the gasket, it is also possible to reduce the situation of gap shaking caused by deformation when fixing to the fuel tank, and improve the reliability of the fixation.

[0037] In some embodiments, the snap structure of the present disclosure may be an integrally formed structure, for example, it can be obtained by injection molding. Another example is that the snap structure of the present disclosure can also be a detachable structure. For example, an external thread is formed at the lower end part of the upper component 11, and an internal thread hole may be formed at the center position of the end face where the lower component 12 is connected to the upper component 11. In this way, the connection between the upper and lower components can be realized through thread fitting. In addition, by adjusting the length of the lower end part screwed into the internal thread hole, the gap between the upper component and the lower component can also be adjusted, so as to adapt to slings of different thicknesses. This helps to improve the versatility of the snap structure.

[0038] It should be noted that the fuel tank of the present disclosure is usually obtained by injection molding or blow molding, and its weight is often not too heavy. By adjusting the size of the snap structure of the present disclosure, reliable connection strength can be obtained, and the requirement for material strength is relatively low. And when the fuel tank body is molded, a groove for snap fixation can be formed through the mold, which can save the subsequent process and equipment investment for welding the support, and reduce the production cost. In addition, the installation method of the snap structure of the present disclosure has a simple process, does not require special tools, and has high operation efficiency.

[0039] Continuing, in the process of adopting the technical solution to solve the above technical problems, the inventor found that there is further the following technical problem two:

[0040] As production continues, the snap structure made of elastomeric material will have an aging problem. As a result, it may occur that the first card member breaks, resulting in insecure or impossible fixation to the fuel tank. Furthermore, it is necessary to replace the snap structure, which affects the production efficiency. It may also occur that the fuel tank drops during hoisting, resulting in safety problems and product defects.

[0041] To solve the above technical problem 2, the following solutions can be adopted. A detection element can be provided at the lower end of the first card member of the above inverted triangle for detecting the force condition at the lower end of the first card member. As an example, a pressure detection sensor can be provided on the inner side of the lower end of the first card member where it is connected to the window, that is, the side facing the inside of the lower member. The pressure detection sensor can be used to detect the pressure condition on the inner side of the first card member, such as a patch pressure sensor. In this way, when the buckle structure is fixed to the fuel tank, if the first card member shows problems such as aging and cracking, the pressure detected by the pressure detection sensor will change. Further, to improve the accuracy of the detection result, a tension detection sensor can also be provided on the outer side of the lower end of the first card member where it is connected to the window, that is, the side facing the outer surface of the lower member. The tension detection sensor can be used to detect the tension condition on the outer side of the first card member, such as a patch tension sensor. In this way, when the buckle structure is fixed to the fuel tank, if the first card member (especially the outer side) shows problems such as aging and cracking, the tension detected by the tension detection sensor will also change.

[0042] Here, a micro reminder lamp can be provided in the hollow structure of the lower member and is connected to the above pressure and tension detection sensors through a microcontroller. When the pressure detected by the pressure detection sensor exceeds the set pressure range and the tension detected by the tension detection sensor exceeds the set tension range, the micro reminder lamp will light up. At this time, the operator can determine that there is a problem with the first card member on the buckle structure and needs to replace the buckle structure in time. This can avoid the safety problems or damage to the fuel tank caused by the fuel tank falling due to the aging of the buckle structure during the hoisting of the fuel tank. In addition, during the installation and fixation process, this problem can be discovered in time through the micro reminder lamp, so that it can be replaced in time, effectively reducing the impact on production and ensuring production efficiency.

[0043] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above utility model concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A buckle structure for connecting a sling to a fuel tank, characterized in that: include: A T-shaped upper component, wherein the length of one side opposite to the other side of the upper end of the upper component is greater than the length of the other side opposite to the other side, wherein a mounting hole adapted to the upper end of the upper component is provided on a sling for hoisting the oil tank; A three-dimensional lower component, one end of which is connected to the lower end of the upper component, and a first clamping member is provided at least on a first side and a second side close to the other end, wherein the first side and the second side are opposite sides; When assembling the sling oil tank, the sling is located between the upper end of the upper component and the lower component, the lower component is embedded in a groove on the surface of the oil tank, and the first clamp is clamped with the second clamp arranged in the groove.

2. The buckle structure for connecting the sling and the fuel tank according to claim 1 is characterized in that: The upper end of the upper component is rectangular or elliptical; When fixed to the sling, the upper end of the upper component passes through the sling through the mounting hole, and the long side of the upper end rotates in a target direction, wherein the target direction is a direction perpendicular to the long side of the mounting hole.

3. The buckle structure for connecting the sling and the fuel tank according to claim 2 is characterized in that: The lower component is a hollow structure, and windows for placing the first clamping member are provided on the first side surface and the second side surface; The first clamping member is an inverted triangle, the upper end of the first clamping member protrudes out of the outer surface of the lower member, and the lower end of the first clamping member is fixedly connected to the edge of the window.

4. The buckle structure for connecting the sling and the oil tank according to claim 3 is characterized in that: The lower component is made of an elastomeric material, wherein the elastomeric material includes at least one of the following: polyoxymethylene POM and polypropylene PP.

5. The buckle structure for connecting the sling and the oil tank according to claim 2 is characterized in that: The buckle structure further includes at least one gasket, which is located between the upper end of the upper component and the lower component, and the size of the gasket is at least larger than the short side size of the mounting hole; Wherein, when being fixed with the sling, the sling is located between the upper end of the upper component and the at least one gasket.

6. The buckle structure for connecting the sling and the oil tank according to claim 5 is characterized in that: The at least one gasket includes a circular gasket and a rectangular gasket, the circular gasket is located between the rectangular gasket and the upper end surface of the upper component, and the long side of the rectangular gasket intersects with the long side of the upper end of the upper component in the projection direction.

7. The buckle structure for connecting a sling to a fuel tank according to any one of claims 1 to 6, characterized in that: The buckle structure is an integrally formed structure.

8. The buckle structure for connecting a sling to a fuel tank according to any one of claims 1 to 6, characterized in that: The lower end of the upper component is formed with an external thread, and the center of the end surface where the lower component is connected to the upper component is formed with an internal thread hole; The length of the lower end portion screwed into the internal threaded hole is adjusted to adapt to slings of different thicknesses.

Images