Telescopic frame
By designing a retractable frame, the problem of poor versatility of camel-type frames is solved, cost reduction and quality improvement are achieved, and production and inventory management are simplified.
Patent Information
- Application Number
- CN202422122908.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The poor versatility of existing camel-type frames leads to long production cycles, high costs, difficult quality control, and complex inventory management.
A retractable frame is designed, and the removable connecting rod and bolt connection between the connecting section of the vertical beam of the frame is provided with a detachable connecting rod and bolt connection between the extended rod, so as to achieve the scalability of the frame and improve versatility.
It has achieved improved versatility of the frame, reduced production equipment and labor costs, and improved production quality and inventory management efficiency.
Smart Images
Figure CN223045829U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric vehicles, and more specifically relates to a telescopic frame. Background Art
[0002] The hump-shaped frame has a simple structure and lower cost when producing a single model. However, since the vertical beam of the frame is an integral aluminum alloy profile, when designing golf cart models with different lengths or seat numbers, it is necessary to repeatedly develop the vertical beams of the same type with different length specifications to achieve the purpose, that is, the frame has poor versatility; the integral aluminum alloy frame vertical beam has high quality requirements, resulting in a long production cycle, large equipment investment cost during production, and at the same time, because it needs to be formed at one time, the raw material has large deformation, making the quality control difficult and the product yield low; at the same time, when producing multiple models with different lengths and a large number, the types and quantities of raw materials in stock with different lengths are numerous, resulting in an increase in inventory management work and labor cost. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a telescopic frame, which improves the versatility of the frame, reduces costs, and at the same time improves the production quality of the frame.
[0004] To achieve the above object, the utility model provides the following technical solution: A telescopic frame includes two parallel frame vertical beams and a frame cross beam located between the two frame vertical beams. The frame vertical beam includes a front hump section, a middle section, and a rear hump section. The frame cross beam is located in the middle section. The middle section between the frame cross beam and the front hump section is divided into a first connection section and a second connection section. An extension rod is provided between the first connection section and the second connection section. The two ends of the extension rod are detachably connected to the first connection section and the second connection section respectively;
[0005] The interiors of the first connection section, the second connection section, and the extension rod are all hollow. Connecting rods are provided between the hollow interiors of the first connection section and the extension rod and between the extension rod and the hollow interior of the second connection section. The connecting rods completely extend into the hollow interiors of the first connection section, the second connection section, and the extension rod, so that the end faces of the first connection section and the extension rod are in contact, and the end faces of the second connection section and the extension rod are in contact. The connecting rods connect the first connection section, the second connection section, and the extension rod through bolts and nuts.
[0006] Further, reinforcing ridges are provided in the hollow interiors of the first connection section, the second connection section, and the extension rod, and grooves corresponding to the reinforcing ridges are provided on the connecting rods.
[0007] Further, the cross-sectional dimension of the extension rod is the same as that of the first connection section and the second connection section, and the outer shapes are the same.
[0008] Further, the interior of the connecting rod is hollow.
[0009] Further, three through holes arranged in a triangle are provided on each of the first connecting section, the second connecting section, the extension rod and the connecting rod, and three bolts respectively pass through the three through holes and are threadedly connected with nuts.
[0010] Further, at least one frame cross beam is provided between the two extension rods.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: when the frame is lengthened, the extension rod is placed between the first connecting section and the second connecting section, and both ends of the extension rod are respectively connected to the first connecting section and the second connecting section through connectors. After being fixedly connected with bolts and nuts, the frame lengthening is completed, so that when designing golf carts with different lengths or as books, there is no need to re-develop frames with different length specifications, improving the versatility of the frame; at the same time, reducing the equipment investment cost and labor cost during production; improving the production quality of the frame. Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of the retractable frame of the utility model before lengthening;
[0013] Figure 2 is an exploded structural diagram of the retractable frame of the utility model before lengthening;
[0014] Figure 3 is an exploded structural diagram of the retractable frame of the utility model when lengthened;
[0015] Figure 4 is a schematic structural diagram of the retractable frame of the utility model after lengthening;
[0016] Figure 5 is a schematic structural diagram of the retractable frame of the utility model after lengthening in the second embodiment of the utility model.
[0017] Reference numerals: frame vertical beam 1; frame cross beam 2; front hump section 3; middle section 4; rear hump section 5; first connecting section 6; second connecting section 7; extension rod 8; connecting rod 9; bolt 10; nut 11; through hole 12; reinforcing rib 13; groove 14. Detailed Embodiments
[0018] In the description of the present utility model, it should be noted that for orientation terms, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.
[0019] In addition, such terms as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meanings of "several" and "a number of" are two or more, unless otherwise specifically and clearly defined.
[0020] Refer to Figures 1 to 5 for further description of the present utility model.
[0021] Embodiment 1:
[0022] A telescopic vehicle frame includes two parallel vehicle frame vertical beams 1 and a vehicle frame cross beam 2 located between the two vehicle frame vertical beams 1. The vehicle frame vertical beam 1 includes a front hump section 3, a middle section 4, and a rear hump section 5. The vehicle frame cross beam 2 is located in the middle section 4. The middle section 4 between the vehicle frame cross beam 2 and the front hump section 3 is divided into a first connection section 6 and a second connection section 7. An extension rod 8 is provided between the first connection section 6 and the second connection section 7. The two ends of the extension rod 8 are detachably connected to the first connection section 6 and the second connection section 7 respectively;
[0023] The interiors of the first connection section 6, the second connection section 7, and the extension rod 8 are all hollow. Connecting rods 9 are provided between the hollow interiors of the first connection section 6 and the extension rod 8 and between the extension rod 8 and the hollow interior of the second connection section 7. The connecting rods 9 completely extend into the hollow interiors of the first connection section 6, the second connection section 7, and the extension rod 8, so that the end faces of the first connection section 6 and the extension rod 8 are in abutment, and the end faces of the second connection section 7 and the extension rod 8 are in abutment. The connecting rods 9 connect the first connection section 6, the second connection section 7, and the extension rod 8 through bolts 10 and nuts 11.
[0024] As Figure 1As shown, when the extension rod 8 is not provided between the first connection section 6 and the second connection section 7, the first connection section 6 and the second connection section 7 can also be connected by the connection rod 9. After forming the integral vehicle frame, the first connection section 6 and the second connection section 7 can be disassembled as needed, and then the extension rod 8 can be connected;
[0025] As Figure 3 and Figure 4 shown, when lengthening the vehicle frame, place the extension rod 8 between the first connection section 6 and the second connection section 7. Both ends of the extension rod 8 are respectively connected to the first connection section 6 and the second connection by connectors. After connecting and fixing with the bolts 10 and nuts 11, the lengthening of the vehicle frame is completed;
[0026] Thus, when designing golf carts of different lengths or as books, there is no need to re-develop vehicle frames of different length specifications, improving the versatility of the vehicle frame; at the same time, reducing the equipment investment cost and labor cost during production; and improving the production quality of the vehicle frame.
[0027] As Figure 2 and Figure 3 shown, preferably in this embodiment, reinforcing ribs 13 are provided inside the hollow first connection section 6, second connection section 7 and extension rod 8, and grooves 14 corresponding to the reinforcing ribs 13 are provided on the connection rod 9. When the connection rod 9 extends into the first connection section 6, second connection section 7 and extension rod 8, its grooves 14 cooperate with the reinforcing ribs 13, positioning while improving the connection effect of the connection rod 9.
[0028] Preferably in this embodiment, the reinforcing ribs 13 and grooves 14 can also not be provided to save materials.
[0029] Preferably in this embodiment, reinforcing ribs 13 are provided on both opposite inner walls of the hollow interiors of the first connection section 6, second connection section 7 and extension rod 8, and grooves 14 are provided on the opposite sides of the connection rod 9.
[0030] As Figure 2 and Figure 3 shown, preferably in this embodiment, the cross-sectional dimensions of the extension rod 8 are the same as those of the first connection section 6 and the second connection section 7, and the outer shapes are the same.
[0031] As Figure 2 and Figure 3 shown, preferably in this embodiment, the interior of the connection rod 9 is hollow, improving the strength of the connection rod 9 and reducing the weight of the connection rod 9.
[0032] Preferably in this embodiment, the connection rod 9 can also be a high-strength solid piece.
[0033] As Figures 1 to 4As shown, in this embodiment, preferably, three through holes 12 arranged in a triangle are provided on each of the first connecting section 6, the second connecting section 7, the extension rod 8 and the connecting rod 9. Three bolts 10 respectively pass through the three through holes 12 and are threadedly connected to nuts 11, so as to improve the connection strength.
[0034] Specifically, the number of the through holes 12, bolts 10 and nuts 11 can be appropriately increased or decreased according to the sizes of the first connecting section 6, the second connecting section 7, the extension rod 8 and the connecting rod 9.
[0035] In this embodiment, preferably, the gaps generated by the abutting of both ends of the extension rod 8 against the first connecting section 6 and the second connecting section 7 can be strengthened and connected by welding.
[0036] In this embodiment, preferably, the above-mentioned telescopic structure can be used for other straight vehicle frames.
[0037] Embodiment 2:
[0038] A telescopic vehicle frame includes two parallel vehicle frame vertical beams 1 and a vehicle frame cross beam 2 located between the two vehicle frame vertical beams 1. The vehicle frame vertical beam 1 includes a front hump section 3, a middle section 4 and a rear hump section 5. The vehicle frame cross beam 2 is located in the middle section 4. The middle section 4 between the vehicle frame cross beam 2 and the front hump section 3 is divided into a first connecting section 6 and a second connecting section 7. An extension rod 8 is arranged between the first connecting section 6 and the second connecting section 7. Both ends of the extension rod 8 are detachably connected to the first connecting section 6 and the second connecting section 7 respectively;
[0039] The interiors of the first connecting section 6, the second connecting section 7 and the extension rod 8 are all hollow. Connecting rods 9 are arranged between the hollow interiors of the first connecting section 6 and the extension rod 8 and between the hollow interior of the extension rod 8 and the second connecting section 7. The connecting rods 9 completely extend into the hollow interiors of the first connecting section 6, the second connecting section 7 and the extension rod 8, so that the end faces of the first connecting section 6 and the extension rod 8 are abutted, and the end faces of the second connecting section 7 and the extension rod 8 are abutted. The connecting rods 9 connect the first connecting section 6, the second connecting section 7 and the extension rod 8 through bolts 10 and nuts 11.
[0040] As Figure 5 shown, in this embodiment, preferably, at least one vehicle frame cross beam 2 is arranged between the two extension rods 8.
[0041] Specifically, when the length of the extension rod 8 is not less than two-thirds of the total length of the middle section 4, at least one vehicle frame cross beam 2 should be arranged between the two extension rods 8.
[0042] Other technical features in this embodiment are the same as those in Embodiment 1.
[0043] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.
Claims
1. A retractable frame, characterized in that: The vehicle comprises two parallel frame vertical beams and a frame cross beam located between the two frame vertical beams, the frame vertical beam comprises a front camel section, a middle section and a rear camel section, the frame cross beam is located in the middle section, the middle section between the frame cross beam and the front camel section is divided into a first connecting section and a second connecting section, an extension rod is arranged between the first connecting section and the second connecting section, and two ends of the extension rod are detachably connected to the first connecting section and the second connecting section respectively; The interiors of the first connecting section, the second connecting section and the extension rod are all hollow, and connecting rods are provided between the hollow interiors of the first connecting section and the extension rod, and between the hollow interiors of the extension rod and the second connecting section. The connecting rods completely extend into the hollow interiors of the first connecting section, the second connecting section and the extension rod, so that the end faces of the first connecting section and the extension rod abut against each other, and the end faces of the second connecting section and the extension rod abut against each other. The connecting rods connect the first connecting section, the second connecting section and the extension rod through bolts and nuts.
2. The retractable frame according to claim 1, characterized in that: The hollow interiors of the first connecting section, the second connecting section and the extension rod are provided with reinforcement ridges, and the connecting rod is provided with grooves corresponding to the reinforcement ridges.
3. The retractable frame according to claim 1, characterized in that: The cross-sectional dimensions of the extension rod are the same as those of the first connecting section and the second connecting section, and the shapes are the same.
4. The retractable frame according to claim 1, characterized in that: The interior of the connecting rod is hollow.
5. The retractable frame according to claim 1, characterized in that: The first connecting section, the second connecting section, the extension rod and the connecting rod are all provided with three through holes arranged in a triangle, and three bolts pass through the three through holes respectively and are threadedly connected with nuts.
6. The retractable frame according to claim 1, characterized in that: At least one frame crossbeam is arranged between the two extension rods.