A kind of camping car expansion box push-pull mechanism and its device

Abstract

The utility model discloses a kind of camping car extension box push-pull mechanism and its device, including carriage chassis, and the extension compartment of the movable connection in the both sides of carriage chassis, the multiple groups of push-pull oil cylinder and multiple groups of pull box slide rail are fixedly installed on the upper end of the carriage chassis, the both sides of pull box slide rail are equipped with the slidable sliding guide, the other end of the sliding guide is welded with extension compartment, and the sliding guide is cooperatively connected with the roller on pull box slide rail, the upper end of the carriage chassis.The utility model passes through camping car extension box push-pull mechanism, support rod and sealing device, ensure that emergency rescue logistics support camping car can be flexibly adapted to complex terrain in open country, extension box can also be smoothly unfolded or retracted in rugged uneven ground, maximum degree extension use space;For camping car in severe weather Provide strong support, resist strong wind, rainstorm and other extreme climate invasion, guarantee vehicle structure stability;And effectively isolate outside wind and rain, dust, maintain dry and comfortable in vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of camping vehicle technology, and in particular relates to a push-pull mechanism and device for a camping vehicle expansion box. Background Technology

[0002] Field camping equipment includes camping cabins and camping vehicles, offering multiple functions such as office work, camping, and recreational activities. They primarily provide significant convenience for various departments conducting emergency rescue, geological exploration, scientific research, and other field activities. Since the usable area or volume of a camping vehicle is fixed, and the number of people it can accommodate simultaneously is also limited, to increase effective activity space and improve field utilization efficiency, the camping vehicle typically includes a main compartment and one or two retractable extension compartments within the main compartment. The extension mechanisms allow the extension compartments to expand outwards and retract inwards, while effective support rods and sealing devices ensure convenient and safe expansion and contraction when the vehicle is in motion or when personnel are resting inside. This also ensures sound insulation and waterproofing of the interior, improving camping comfort and reliability.

[0003] The technical solution adopted by this utility model is to design a push-pull mechanism, support rod and sealing device for the extension box of a camping vehicle suitable for field operations. This ensures that the emergency rescue logistics support camping vehicle can flexibly adapt to complex terrain in the field, and can smoothly unfold or retract the extension box even on rugged terrain to maximize the use space; it provides strong support for the camping vehicle in bad weather, resists the invasion of extreme weather such as strong winds and rainstorms, and ensures the stability of the vehicle structure; and it effectively isolates the external wind, rain and dust, and maintains a dry and comfortable interior. Utility Model Content

[0004] To address the problems existing in the above-mentioned technologies, this utility model provides a push-pull mechanism and device for an extended box in a campervan, comprising a chassis frame and an extended box movably connected to both sides of the chassis frame. Multiple sets of push-pull cylinders and multiple sets of box-pulling slide rails are fixedly installed on the upper end of the chassis frame. The box-pulling slide rails are welded to the chassis frame and equipped with multiple rollers. Sliding guide rails are installed on both sides of the box-pulling slide rails. The other end of each sliding guide rail is welded to the extended box, and the sliding guide rails are connected to the rollers on the box-pulling slide rails. Multiple push-pull cylinders are fixedly installed on the upper end of the chassis frame, and the output ends of the push-pull cylinders are fixedly connected to the extended box via bolts.

[0005] As a preferred embodiment of this utility model, the upper end of the carriage frame is connected to multiple sets of adjustable guide wheels, and each set of guide wheels is respectively arranged on the left and right sides of the sliding guide rail.

[0006] As a preferred embodiment of this utility model, the lower end of the expansion compartment is connected to an adjustable support rod, the lower end of the support rod is threaded with a heavy-duty universal foot ring, the upper end of the support rod is threaded with a four-corner head, the upper end of the four-corner head is fixedly connected to the expansion compartment, and the middle of the support rod is fixedly connected with a movable handle arranged in a U-shape.

[0007] In a preferred embodiment of this utility model, a fixed seat is fixedly connected to the outer wall between the support rods, and multiple buffer pads are connected through the outer wall of the fixed seat. The fixed seat is connected to the support rod through the buffer pads. Multiple positioning holes are opened on the outer wall of the fixed seat, and the two ends of the movable handle are inserted into the positioning holes and fixedly connected to the fixed seat.

[0008] In a preferred embodiment of this utility model, the end of the expansion compartment connected to the carriage is provided with profile one and profile two respectively. Profile one is fixedly connected to the outer wall of the slide rail, and profile two is fixedly connected to the outer wall of the expansion compartment. A sealing strip is provided between profile one and profile two, and profile one and profile two are connected by the sealing strip. Furthermore, a rubber strip welding plate is provided at the connection between the expansion compartment and the carriage base frame. Both ends of the rubber strip welding plate are welded to the slide rail and the expansion compartment respectively.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This utility model, through the camping vehicle's extension box push-pull mechanism, support rod, and sealing device, ensures that the emergency rescue logistics support camping vehicle can flexibly adapt to complex terrain in the wild. Even on rugged and uneven ground, the extension box can be smoothly deployed or retracted to maximize the usable space. It also provides strong support for the camping vehicle in severe weather, resisting the impact of extreme weather such as strong winds and heavy rain, ensuring the stability of the vehicle structure. Furthermore, it effectively isolates the vehicle from external wind, rain, and dust, maintaining a dry and comfortable interior. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the extended compartment provided in an embodiment of the present utility model;

[0013] Figure 3 This is a schematic diagram of the retraction of the extended compartment provided in this embodiment of the utility model;

[0014] Figure 4 This is a top view schematic diagram provided in an embodiment of the present utility model;

[0015] Figure 5 This is a side view schematic diagram provided in an embodiment of the present utility model;

[0016] Figure 6 This is provided by the embodiment of the present utility model. Figure 4 Enlarged schematic diagram of Zone I;

[0017] Figure 7 This is provided by the embodiment of the present utility model. Figure 4 Enlarged structural diagram of Zone II;

[0018] Figure 8 This is provided by the embodiment of the present utility model. Figure 4 Enlarged schematic diagram of Zone III;

[0019] Figure 9 This is a side view of the extended compartment provided in an embodiment of the present invention;

[0020] Figure 10 This is a schematic diagram of the connection between the support rod and the fixed base provided in this embodiment of the utility model;

[0021] Figure 11 This is a side view of the fixed base provided in an embodiment of the present utility model.

[0022] In the diagram: 1. Carriage base frame; 2. Extendable compartment; 3. Guide wheels; 4. Carriage sliding rail; 5. Sliding guide rail; 6. Push-pull hydraulic cylinder; 7. Profile 1; 8. Profile 2; 9. Sealing strip; 10. Welded plate with sealing strip; 11. Support rod; 12. Movable handle; 13. Heavy-duty universal foot ring; 14. Fixed seat; 15. Positioning hole; 16. Buffer pad strip; 17. Four corner heads. Detailed Implementation

[0023] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] Example 1:

[0026] like Figures 1 to 3 As shown in the figure, this utility model provides a campervan expansion box push-pull mechanism and device, including a car body frame 1 and an expansion box 2 movably connected to both sides of the car body frame 1. Multiple sets of push-pull cylinders 6 and multiple sets of box-pull slide rails 4 are fixedly installed on the upper end of the car body frame 1. The box-pull slide rails 4 are welded to the car body frame 1 and equipped with multiple rollers. Sliding guide rails 5 are installed on both sides of the box-pull slide rails 4. The other end of the sliding guide rails 5 is welded to the expansion box 2, and the sliding guide rails 5 are connected to the rollers on the box-pull slide rails 4. Multiple push-pull cylinders 6 are fixedly installed on the upper end of the car body frame 1, and the output end of the push-pull cylinders 6 is fixedly connected to the expansion box 2 by bolts. The expansion box 2 is moved by the retraction of the push-pull cylinders 6, causing the sliding guide rails 5 to slide on the box-pull slide rails 4, thus realizing the expansion and retraction of the expansion box 2.

[0027] like Figures 1 to 3 As shown, the upper end of the carriage base frame 1 is connected to multiple sets of adjustable guide wheels 3, and each set of guide wheels 3 is respectively set on the left and right sides of the sliding guide rail 5; when the sliding guide rail 5 is pushed out, it plays a guiding and limiting role to avoid deviation in the pushing direction caused by production errors.

[0028] like Figures 9 to 11 As shown, the lower end of the expansion compartment 2 is connected to an adjustable support rod 11. A heavy-duty universal foot ring 13 is threaded to the lower end of the support rod 11, and a four-corner head 17 is threaded to the upper end of the support rod 11. The upper end of the four-corner head 17 is fixedly connected to the expansion compartment 2. A U-shaped movable handle 12 is fixedly connected through the middle of the support rod 11. A fixed seat 14 is fixedly connected to the outer wall between the support rods 11. Multiple buffer pads 16 are connected through the outer wall of the fixed seat 14. The fixed seat 14 is connected to the support rod 11 through the buffer pads 16. The outer wall of the fixed base 14 has multiple positioning holes 15. The two ends of the movable handle 12 are inserted into the positioning holes 15 and fixedly connected to the fixed base 14. By rotating the movable handle 12, the support rod 11 can be moved on the four corner heads 17 through threaded connection, thereby adjusting the height of the support rod 11 to facilitate support of the expansion box 2. The heavy-duty universal foot ring 13 can also be rotated. The heavy-duty universal foot ring 13 is threadedly connected to the support rod 11, thereby adjusting the height of the heavy-duty universal foot ring 13 to facilitate contact between the heavy-duty universal foot ring 13 and the ground, thereby improving the stability of the support rod 11.

[0029] like Figures 4 to 8 As shown, the end of the extended compartment 2 connected to the carriage is provided with profile 7 and profile 8 respectively. Profile 7 is fixedly connected to the outer wall of the slide rail, and profile 8 is fixedly connected to the outer wall of the extended compartment 2. A sealing strip 9 is provided between profile 7 and profile 8. Profile 7 and profile 8 are connected by the sealing strip 9. A rubber strip welding plate 10 is also provided at the connection between the extended compartment 2 and the carriage base frame 1. The two ends of the rubber strip welding plate 10 are welded to the slide rail 5 and the extended compartment 2 respectively. When the extended compartment is retracted, the sandwich sealing design of profile 7, profile 8, rubber strip and profile is used for limiting and fixing. When the extended compartment 2 is extended into place, the sandwich sealing design of profile 7, profile 8, rubber strip and rubber strip welding plate 10 is used for limiting and fixing.

[0030] Working principle of Example 1:

[0031] The camping vehicle's body structure includes a main compartment and one or two retractable extension compartments 2 arranged on the left and right sides, which can be housed within the main compartment. A push-pull mechanism for the extension compartment is located between the bottom of the main compartment and the extension compartment. The sub-beam frame of the push-pull mechanism is fastened to the main beam of the vehicle chassis, forming an extendable office and camping vehicle with single or double-sided expansion. In use, the moving parts of the push-pull mechanism, driven manually, electrically, or hydraulically, cause the outer side panels of the extension compartment to reciprocate, realizing the expansion or folding of the extension compartment. It features single-sided and double-sided expansion, is easy to operate, and allows for flexible and quick overall expansion, adapting to and meeting the urgent needs of military units and other departments for temporary personnel expansion during field camping.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A push-pull mechanism and device for an extended compartment of a camping vehicle, comprising a chassis frame (1) and an extended compartment (2) movably connected to both sides of the chassis frame (1), characterized in that: Multiple sets of push-pull cylinders (6) and multiple sets of box slide rails (4) are fixedly installed on the upper end of the car chassis (1). The box slide rails (4) are welded to the car chassis (1) and equipped with multiple rollers. Sliding guide rails (5) are installed on both sides of the box slide rails (4). The other end of the sliding guide rails (5) is welded to the expansion compartment (2), and the sliding guide rails (5) are connected to the rollers on the box slide rails (4). Multiple push-pull cylinders (6) are fixedly installed on the upper end of the car chassis (1). The output end of the push-pull cylinders (6) is connected to the expansion compartment (2) by bolts.

2. The camping vehicle extension box push-pull mechanism and device as described in claim 1, characterized in that: The upper end of the carriage frame (1) is connected to multiple sets of adjustable guide wheels (3), and each set of guide wheels (3) is respectively set on the left and right sides of the sliding guide rail (5).

3. The camping vehicle extension box push-pull mechanism and device as described in claim 1, characterized in that: The lower end of the expansion compartment (2) is connected to an adjustable support rod (11), the lower end of the support rod (11) is threaded with a heavy-duty universal foot ring (13), the upper end of the support rod (11) is threaded with a four-corner head (17), the upper end of the four-corner head (17) is fixedly connected to the expansion compartment (2), and the middle part of the support rod (11) is fixedly connected with a movable handle (12) arranged in a U-shape.

4. The camping vehicle extension box push-pull mechanism and device as described in claim 3, characterized in that: A fixed seat (14) is fixedly connected to the outer wall between the support rods (11). Multiple buffer pad strips (16) are connected through the outer wall of the fixed seat (14). The fixed seat (14) is connected to the support rod (11) through the buffer pad strips (16). Multiple positioning holes (15) are opened on the outer wall of the fixed seat (14). The two ends of the movable handle (12) are inserted into the positioning holes (15) and fixedly connected to the fixed seat (14).

5. The camping vehicle extension box push-pull mechanism and device as described in claim 1, characterized in that: The extension compartment (2) is connected to the carriage at one end with profile one (7) and profile two (8). Profile one (7) is fixedly connected to the outer wall of the slide rail, and profile two (8) is fixedly connected to the outer wall of the extension compartment (2). A sealing strip (9) is provided between profile one (7) and profile two (8). Profile one (7) and profile two (8) are connected by the sealing strip (9). A rubber strip welding plate (10) is also provided at the connection between the extension compartment (2) and the carriage base frame (1). The two ends of the rubber strip welding plate (10) are welded to the slide rail (5) and the extension compartment (2) respectively.

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