Carriage expanding mechanism of scissor-type lifting roof

Abstract

The utility model discloses a carriage expanding mechanism with a scissors fork type lifting top, and particularly relates to the field of carriage of motor homes, which comprises a bottom frame, storage boxes are symmetrically mounted at the top end of the bottom frame, a connecting plate is connected between the two storage boxes, a bottom slide rail is mounted in each storage box, and a lifting component is mounted on each bottom slide rail in a matched manner. The two lifting assemblies are provided with top sliding rails in a matched mode respectively, the top ends of the two top sliding rails jointly support a top cover, the storage box and the two connecting plates are connected and matched to form a sealing assembly, an outer frame is welded to the edge of the bottom of the top cover, an inner frame is arranged in the outer frame, a sleeve groove is formed between the outer frame and the inner frame, and the two top sliding rails are both installed in the sleeve groove. And parallel arrangement is realized. The lifting assemblies are symmetrically installed at the bottom of the top cover, lifting is pushed through the electric push rods, the structure is simple, the lifting stroke is large, the installation position is small, automatic storage can be achieved, the overall sealing performance is good after storage, and space in a carriage is not occupied.

Description

Technical Field

[0001] The utility model relates to the technical field of recreational vehicle boxes, and more specifically, to a box expansion mechanism with a scissor-type lifting top. Background Art

[0002] An RV is an assembly that integrates accommodation, catering, transportation, and entertainment, and it combines the dual functions of a house and a car. It has the necessary basic facilities inside the car, such as bedding, stoves, refrigerators, cabinets, bathroom components, sofas, dining tables and chairs, air conditioners, televisions, stereos and other furniture and electrical appliances. Due to the ease of use of RVs, RVs have developed rapidly in tourism in recent years, especially RV camping has been rapidly established and developed, providing people with the opportunity to walk into and get close to nature, and enriching people's lives. Although the RV is fully equipped with home appliances, this results in cramped space for the car, making it inconvenient for people in the car to move. Therefore, in order to increase the space of the RV, the roof of the RV is a lifting roof to adjust the internal space.

[0003] The invention patent with patent publication number CN116968615A discloses a RV roof lifting device, which relates to the technical field of RVs. A RV roof lifting device includes a bottom plate, a lifting drive member is provided on the bottom plate, and a top plate is provided on the output end of the lifting drive member; the lifting drive member includes a first cylinder body, a second cylinder body and a lifting rod arranged in sequence, one end of the second cylinder body is slidably arranged inside the first cylinder body, and one end of the lifting rod is slidably arranged inside the second cylinder body. This application enables the RV roof to achieve two-stage lifting.

[0004] However, in actual use, the roof of the RV is mainly raised by four push rods, which is large in size, occupies more space, and has a complex mechanical structure that is not easy to maintain. Therefore, a car box expansion mechanism with a scissor-type lifting roof is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a vehicle box expansion mechanism with a scissor-type lifting roof to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a car box expansion mechanism with a scissor-type lifting roof, including a base frame, storage boxes are symmetrically installed on the top of the base frame, a connecting plate is connected between the two storage boxes, a bottom slide rail is installed in each storage box, a lifting assembly is installed on each bottom slide rail, the two lifting assemblies are respectively installed with top slide rails, and the top ends of the two top slide rails jointly support a top cover.

[0007] By contracting the electric push rod, the first movable slider can be pulled, so that the top end of the active support rod is connected to the second fixed slider and lifted upward in cooperation with the follower support rod, so that the top cover rises. The overall structure is simple and does not occupy the internal space of the car. When the top cover is dropped, the active support rod and the follower support rod can be dropped and folded and hidden in the storage box, thereby improving the overall aesthetics. When the drop is completed, the sealing component is inserted into the sleeve groove for sealing, thereby improving the sealing performance and avoiding air leakage.

[0008] Preferably, the storage box and the two connecting plates are connected and matched to form a sealing assembly.

[0009] Preferably, an outer frame is welded to the bottom edge of the top cover, an inner frame is arranged inside the outer frame, a sleeve groove is formed between the outer frame and the inner frame, and the two top slide rails are both installed in the sleeve groove and arranged in parallel.

[0010] Preferably, the sleeve groove is sleeve-fitted with the sealing assembly, and the depth dimension of the sleeve groove is matched with the height dimension of the sealing assembly.

[0011] Preferably, the lifting assembly comprises a first fixed slider, which is bolted to one end of the bottom slide rail.

[0012] The first movable sliding block is slidably mounted on the bottom sliding rail.

[0013] The second fixed slide block is bolted to one end of the top slide rail and is located directly above the first fixed slide block.

[0014] The second movable sliding block is slidably mounted on the top sliding rail.

[0015] An active support rod, one end of the active support rod is rotatably connected to one side of the first movable slider, and the other end of the active support rod is rotatably connected to one side of the second fixed slider.

[0016] A follower strut, one end of which is rotatably connected to one side of the first fixed slider, and the other end of which is rotatably connected to one side of the second movable slider.

[0017] The support shaft is installed at the intersection of the active support rod and the follower support rod.

[0018] An electric push rod is installed in the storage box, and a telescopic end of the electric push rod is connected to one side of the first movable sliding block.

[0019] Preferably, the active strut and the follower strut are respectively arranged on both sides of the bottom slide rail, and the planes where the active strut and the follower strut are located are parallel.

[0020] Technical effects and advantages of the utility model:

[0021] 1. Through the arrangement of the bottom slide rail, the top slide rail, two fixed sliders, two movable sliders, the active strut, the follower strut, the support shaft and the electric push rod, compared with the prior art, the support height between the active strut and the follower strut can be adjusted by contracting the electric push rod. The entire structure is installed at the connection between the top cover and the top of the carriage. It has a simple structure, a large lifting stroke, a small installation position, and does not occupy space in the carriage.

[0022] 2. By setting the sleeve grooves formed between the storage box, the connecting plate, the outer frame and the inner frame, compared with the prior art, when the top cover is dropped, the top cover and the bottom frame can be closely matched, thereby improving the overall sealing, and the lifting assembly can be hidden, thereby improving the overall aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the connection structure between the base frame and the lifting assembly of the utility model.

[0025] Figure 3 It is a schematic diagram of the connection structure between the top cover and the lifting assembly of the utility model.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting component of the utility model.

[0027] Figure 5 It is a rear structural schematic diagram of the lifting assembly of the utility model.

[0028] The accompanying drawings are marked as follows: 1. Base frame; 2. Storage box; 3. Connecting plate; 4. Lifting assembly; 401. First fixed slider; 402. First movable slider; 403. Second fixed slider; 404. Second movable slider; 405. Active support rod; 406. Follow-up support rod; 407. Support shaft; 408. Electric push rod; 5. Top cover; 6. Sleeve groove; 7. Bottom slide rail; 8. Top slide rail. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] As attached Figure 1-5The illustrated embodiment of a car trunk expansion mechanism with a scissor-type lifting roof comprises a base frame 1, a storage box 2 is symmetrically installed on the top of the base frame 1, a connecting plate 3 is connected between the two storage boxes 2, a bottom slide rail 7 is installed in each storage box 2, a lifting assembly 4 is installed on each bottom slide rail 7, the two lifting assemblies 4 are respectively installed with a top slide rail 8, and the top ends of the two top slide rails 8 jointly support a top cover 5, and the first movable slider 402 can be pulled by contracting the electric push rod 408, so that the top end of the active support rod 405 is connected with the second fixed slider 403 and cooperates with the follower support rod 406 to lift upward, so that the top cover 5 is lifted, and the overall structure is simple, and does not need to occupy the internal space of the car, and when the top cover 5 is dropped, the active support rod 405 and the follower support rod 406 are dropped and folded and can be stored in the storage box 2 for hiding, thereby improving the overall aesthetics, and when the drop is completed, the sealing assembly is plugged into the sleeve groove 6 for sealing, thereby improving the sealing performance and avoiding air leakage.

[0031] As attached Figure 2 and Figure 3 As shown, the storage box 2 and the two connecting plates 3 are connected and matched to form a sealing assembly, an outer frame is welded to the bottom edge of the top cover 5, an inner frame is arranged inside the outer frame, a sleeve groove 6 is formed between the outer frame and the inner frame, and two top slide rails 8 are both installed in the sleeve groove 6 and arranged in parallel, the sleeve groove 6 is sleeved and matched with the sealing assembly, and the depth dimension of the sleeve groove 6 is adapted to the height dimension of the sealing assembly.

[0032] The outer frame and the inner frame cooperate to form a sleeve groove 6. When the top cover 5 falls, the storage box 2 and the connecting plate 3 can be hidden in the sleeve groove 6 for plug-in cooperation, which not only improves the overall aesthetics, but also improves the sealing performance.

[0033] As attached Figure 4 and Figure 5 As shown, the lifting assembly 4 includes a first fixed slider 401 , and the first fixed slider 401 is bolted to one end of the bottom slide rail 7 .

[0034] The first movable slider 402 is slidably mounted on the bottom slide rail 7 .

[0035] The second fixed slider 403 is bolted to one end of the top slide rail 8 and is located directly above the first fixed slider 401 .

[0036] The second movable slider 404 is slidably mounted on the top slide rail 8 .

[0037] An active support rod 405 , one end of which is rotatably connected to one side of the first movable slider 402 , and the other end of which is rotatably connected to one side of the second fixed slider 403 .

[0038] The follower support rod 406 has one end rotatably connected to one side of the first fixed slider 401 , and the other end rotatably connected to one side of the second movable slider 404 .

[0039] The support shaft 407 is installed at the intersection of the active support rod 405 and the follower support rod 406.

[0040] The electric push rod 408 is installed in the storage box 2, and the telescopic end of the electric push rod 408 is connected to one side of the first movable slider 402.

[0041] The active support rod 405 and the follower support rod 406 are respectively arranged on both sides of the bottom slide rail 7, and the planes where the active support rod 405 and the follower support rod 406 are located are parallel.

[0042] When the electric push rod 408 contracts, the first movable slider 402 can be pulled to move in the direction of the first fixed slider 401. Synchronously, with the cooperation of the support shaft 407 and the follower strut 406, the second movable slider 404 is moved in the direction of the second fixed slider 403, so that the active strut 405 and the follower strut 406 cooperate to lift upward, thereby lifting the top cover 5.

[0043] Working principle of the utility model: when the car body expansion mechanism of the scissor-type lifting roof is used in conjunction with the installation on the roof of the RV, the first movable slider 402 can be pulled by the contraction of the electric push rod 408, so that the top end of the active support rod 405 is connected with the second fixed slider 403 and is lifted upward in conjunction with the follower support rod 406, so that the top cover 5 is raised. The overall structure is simple and does not occupy the internal space of the car. When the top cover 5 is dropped, the active support rod 405 and the follower support rod 406 drop and fold and can be stored in the storage box 2 for hiding, thereby improving the overall aesthetics. When the drop is completed, the sealing component is inserted in the sleeve groove 6 for sealing, thereby improving the sealing performance and avoiding air leakage.

[0044] The utility model symmetrically installs the lifting assembly 4 at the bottom of the top cover 5, and adopts the electric push rod 408 to promote the lifting. The structure is simple, the lifting stroke is large, the installation position is small, and it can be automatically stored. After storage, the overall sealing is good and no space in the car is occupied.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle compartment expansion mechanism with a scissor-type lifting roof, comprising a base frame (1), characterized in that: A storage box (2) is symmetrically mounted on the top of the base frame (1); a connecting plate (3) is connected between the two storage boxes (2); a bottom slide rail (7) is mounted in each storage box (2); a lifting assembly (4) is mounted on each bottom slide rail (7); two lifting assemblies (4) are respectively mounted with a top slide rail (8); and a top cover (5) is jointly supported at the top of the two top slide rails (8).

2. A car trunk expansion mechanism with a scissor-type lifting roof according to claim 1, characterized in that: The storage box (2) and the two connecting plates (3) are connected and matched to form a sealing assembly.

3. A car trunk expansion mechanism with a scissor-type lifting roof according to claim 2, characterized in that: An outer frame is welded to the bottom edge of the top cover (5), an inner frame is arranged inside the outer frame, a sleeve groove (6) is formed between the outer frame and the inner frame, and two top slide rails (8) are both installed in the sleeve groove (6) and are arranged in parallel.

4. A car trunk expansion mechanism with a scissor-type lifting roof according to claim 3, characterized in that: The sleeve groove (6) is sleeve-fitted with the sealing component, and the depth dimension of the sleeve groove (6) is matched with the height dimension of the sealing component.

5. A car trunk expansion mechanism with a scissor-type lifting roof according to claim 4, characterized in that: The lifting assembly (4) comprises a first fixed slider (401), wherein the first fixed slider (401) is bolted to one end of the bottom slide rail (7); A first movable slider (402), the first movable slider (402) being slidably mounted on the bottom slide rail (7); A second fixed slider (403), the second fixed slider (403) being bolted to one end of the top slide rail (8) and being located directly above the first fixed slider (401); A second movable slide block (404), the second movable slide block (404) being slidably mounted on the top slide rail (8); An active support rod (405), one end of the active support rod (405) is rotatably connected to one side of the first movable slider (402), and the other end of the active support rod (405) is rotatably connected to one side of the second fixed slider (403); A follower support rod (406), one end of which is rotatably connected to one side of the first fixed slider (401), and the other end of which is rotatably connected to one side of the second movable slider (404); A support shaft (407), wherein the support shaft (407) is installed at the intersection of the active support rod (405) and the follower support rod (406); An electric push rod (408), wherein the electric push rod (408) is installed in the storage box (2), and the telescopic end of the electric push rod (408) is connected to one side of the first movable slider (402).

6. A car trunk expansion mechanism with a scissor-type lifting roof according to claim 5, characterized in that: The active support rod (405) and the follower support rod (406) are respectively arranged on both sides of the bottom slide rail (7), and the planes where the active support rod (405) and the follower support rod (406) are located are parallel.

Images