CN219056094U - An automatic expansion structure of a rack-type caravan - Google Patents

Abstract

The utility model relates to the technical field of motor home and provides an automatic expansion structure of a rack type motor home, which comprises a motor home body, wherein a sliding block is fixedly arranged on the inner side wall of the motor home body, a rectangular frame is connected with the inner side wall of the motor home body in a sliding manner, sliding grooves are formed in two side walls of the rectangular frame, the rectangular frame is clamped with the sliding grooves, a rectangular plate is fixedly arranged on one side of each sliding groove, toothed plates are fixedly arranged on two sides of each rectangular frame, a fixing frame is arranged on the inner bottom wall of the motor home body, a motor is arranged on one side of each fixing frame, a round rod is connected with the output end of each motor, a gear is fixedly arranged on the side wall of each round rod, and the gears are in meshed connection with the toothed plates.

Description

An automatic expansion structure of a rack-type caravan

technical field

The utility model relates to the technical field of caravans, in particular to a rack-type caravan automatic expansion structure.

Background technique

RV, also known as "home on wheels", has the two functions of "house" and "car", but its attribute is still a car, which is a mobile type with basic facilities necessary for home. The fashion facility car type imported from abroad, the home facilities on the car include: bedding, stove, refrigerator, cabinet, sofa, dining table and chairs, bathroom facilities, air conditioner, TV, audio and other furniture and electrical appliances, which can be divided into driving area, Living area, bedroom area, sanitation area, kitchen area, etc. RV is a fashion product that integrates "clothing, food, housing, and transportation" to realize "travel in life, life in travel".

After retrieval, the utility model patent CN216580299U discloses an expansion mechanism for a caravan, including an expansion compartment body, a sleeve slideway and a hydraulic expansion mechanism. The bottom of the expansion compartment body is provided with an expansion compartment chassis, and the expansion compartment There are several casing slideways fixed on the bottom frame of the warehouse; the casing slideways include movable slide rails, slideway guide wheels, horizontal positioning wheels, vertical positioning wheels and slide rail outer sleeves; the movable slide rails can slide It is arranged in the outer sleeve of the slide rail, and one end of the movable slide rail passes through the outlet of the outer sleeve of the slide rail, and one end of the movable slide rail is connected to the chassis of the expansion warehouse; two 90 ° horizontal positioning wheel and vertical positioning wheel; the utility model is suitable for all types of RVs that need to be equipped with expansion mechanisms, and has the advantages of simple installation, strong power, low failure rate, easy maintenance, convenient emergency treatment, low cost, and no The advantages of controlling cable dragging without potential safety hazards can effectively solve the disadvantages of the existing RV expansion mechanism.

However, in the implementation of related technologies, it is found that the above-mentioned technical solution has the following problems: the existing automatic expansion structure slides out quickly, has poor stability during use, and does not have a good rainproof function, and is prone to water leakage after expansion Case.

Utility model content

The utility model proposes an automatic expansion structure for a rack type caravan, which solves the problem of relatively fast sliding out of the existing automatic expansion structure in the related art.

The technical scheme of the utility model is as follows: a rack-type caravan automatic expansion structure, including a caravan body, a slider is fixedly installed on the inner side wall of the caravan body, and a rectangular frame is slidably connected to the inner sidewall of the caravan body. The two side walls of the rectangular frame are provided with chute, and the rectangular frame is engaged with the chute;

A rectangular plate is fixedly installed on one side of the chute, and tooth plates are fixedly installed on both sides of the rectangular frame;

The inner bottom wall of the caravan body is provided with a fixed frame, one side of the fixed frame is provided with a motor, the output end of the motor is connected to a round rod, and a gear is fixedly installed on the side wall of the round rod, and the Mesh connection between the gear and the tooth plate.

Preferably, a fixed block is fixedly installed on the outer wall of the RV body, a rainproof film is provided on one side of the fixed block, a support frame is fixedly installed on one side of the rectangular plate, and one side of the support frame passes through The return spring is connected with retractable rollers, and the rainproof film is connected with the retractable rollers.

Preferably, the rainproof film is made of opaque material, and the shape of the rainproof film is rectangular.

Preferably, a U-shaped frame is fixedly installed on one side of the rectangular plate, movable legs are hinged on the inner side wall of the U-shaped frame, and a circular groove is opened on the top of the movable leg.

Preferably, an anti-slip pad is fixedly installed on the bottom of the movable leg, and the material of the anti-slip pad is rubber.

Preferably, one side of the rectangular plate is fixedly installed with a connecting plate, the top of the connecting plate is threadedly connected with a threaded rod, and the threaded rod is inserted into the circular groove, and the threaded rod A screw block is fixedly installed on the top.

Preferably, an observation window is installed on one side of the rectangular plate, and the material of the observation window is glass.

Preferably, the outer wall of the rectangular frame is provided with a reflective strip, and the reflective strip is bonded to the rectangular frame by glue.

Working principle of the present utility model and beneficial effect are:

1. In the utility model, the overall expansion can be carried out through the set sliders, chute, rectangular frame, rectangular plate, tooth plate, fixed frame, motor, round rod and gear, and the speed in the expansion process is slow and stable. It will also increase accordingly, and its service life will be longer, ensuring its service life and ensuring the experience of use;

2. The fixed block, rainproof film, support frame and retractable roller provided in the utility model can play a good waterproof function on the gap between the expansion structure and the caravan, so as to prevent rainwater from infiltrating from the gap and prevent it from There will be rust, and its use effect will be better, which is convenient for popularization and use.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a sectional view of the overall structure of the utility model;

Fig. 3 is the enlarged view of the structure at A place in Fig. 2 of the utility model;

In the figure: 1. RV body; 2. Slider; 3. Rectangular frame; 4. Chute; 5. Rectangular plate; 6. Tooth plate; 7. Fixed frame; 8. Motor; 9. Round rod; 10. Gear ;11, reflective strip; 12, fixed block; 13, rainproof film; 14, support frame; 15, retractable roller; 16, U-shaped frame; 17, movable leg; 20, connecting plate; 21, threaded rod; 22, twist block.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all involve the scope of protection of the present utility model.

Please refer to Fig. 1-Fig. 3, the utility model provides a kind of rack-type caravan automatic expansion structure technical solution: a rack-type caravan automatic expansion structure, including a caravan body 1, the inner wall of the caravan body 1 is fixedly installed with sliding Block 2, the inner side wall of the RV body 1 is slidingly connected with a rectangular frame 3, and the two side walls of the rectangular frame 3 are provided with a chute 4, and the rectangular frame 3 and the chute 4 are engaged with each other, and one side of the chute 4 is fixed Rectangular plate 5 is installed, toothed plate 6 is fixedly installed on both sides of rectangular frame 3. The inner bottom wall of caravan body 1 is provided with fixed frame 7, and one side of fixed frame 7 is provided with motor 8, and the output end of motor 8 is connected with round A gear 10 is fixedly installed on the side wall of the rod 9 and the round rod 9 , and the gear 10 is engaged with the tooth plate 6 .

First, start the motor 8 to drive the round rod 9 to rotate, and then the round rod 9 drives the gear 10 to rotate, so that the gear 10 drives the tooth plate 6 to move, so that the rectangular frame 3 slides out from the inside of the car body 1, and the rectangular frame 3. During the sliding process, the slider 2 will slide inside the chute 4, making the expansion more stable, and the slower speed will not cause abnormal noise or damage.

Specifically, the outer wall of the caravan body 1 is fixedly equipped with a fixed block 12, and one side of the fixed block 12 is provided with a rainproof film 13. The rainproof film 13 is made of opaque material, and the shape of the rainproof film 13 is rectangular. The rectangular plate 5 One side of the support frame 14 is fixedly installed, and one side of the support frame 14 is connected with a retractable roller 15 by a return spring, and the rainproof film 13 is connected with the retractable roller 15 .

During the movement of the rectangular plate 5, the fixed block 12 will pull the rainproof film 13 to move, so that the retractable roller 15 rotates to unwind the rainproof film 13, and the return spring will drive the retractable roller 15 to rotate when the expansion is closed. , so that the retracting and unwinding roller 15 can drive the rainproof film 13 to rewind, which can play a good rainproof and sunshade effect, so as to prevent rusting or high internal temperature.

Concrete, one side of rectangular plate 5 is fixedly installed with U-shaped frame 16, and the inner wall of U-shaped frame 16 is hinged with movable leg 17, and the top of movable leg 17 is provided with circular groove 19, and the bottom of movable leg 17 is fixedly installed with Anti-slip pad 18, the material of anti-slip pad 18 is rubber, one side of rectangular plate 5 is fixedly installed with connecting plate 20, the top of connecting plate 20 is connected with threaded rod 21 by thread, and between threaded rod 21 and circular groove 19 Inserting, the top of the threaded rod 21 is fixedly equipped with a twisting block 22 .

Rotating the movable leg 17 can allow the anti-slip pad 18 to touch the ground, and then turning the screw block 22 can screw the threaded rod 21 and the circular groove 19 together.

Specifically, an observation window is installed on one side of the rectangular plate 5, and the material of the observation window is glass.

You can observe the beautiful scenery outside the window, making the travel experience better.

Specifically, the outer wall of the rectangular frame 3 is provided with a reflective strip 11 , and the reflective strip 11 and the rectangular frame 3 are bonded by glue.

The reflective strip 11 can play a good warning effect to prevent traffic accidents.

The working principle and application process of the utility model: first, the motor 8 can drive the round rod 9 to rotate, and then the round rod 9 can drive the gear 10 to rotate, so that the gear 10 can drive the tooth plate 6 to move, so that the rectangular frame 3 can move from The inside of the RV body 1 slides out, and the slider 2 slides inside the chute 4 during the sliding process of the rectangular frame 3 .

During the movement of the rectangular plate 5, the fixed block 12 will pull the rainproof film 13 to move, so that the retractable roller 15 rotates to unwind the rainproof film 13, and the return spring will drive the retractable roller 15 to rotate when the expansion is closed. , so that the retracting roller 15 can drive the rainproof film 13 to roll up, and the rotating movable leg 17 can allow the anti-skid pad 18 to touch the ground, and then the screwing block 22 can be rotated to screw the threaded rod 21 and the circular groove 19 together.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included in the utility model. within the scope of the new protection.

Claims (8)

1. A rack type caravan automatic expansion structure, comprising a caravan body (1), characterized in that a slider (2) is fixedly installed on the inner side wall of the caravan body (1), and the caravan body (1) The inner side wall is slidably connected with a rectangular frame (3), the two side walls of the rectangular frame (3) are provided with chute (4), and the rectangular frame (3) and the chute (4) are interlocked catch; A rectangular plate (5) is fixedly installed on one side of the chute (4), and a toothed plate (6) is fixedly installed on both sides of the rectangular frame (3); The inner bottom wall of the caravan body (1) is provided with a fixed frame (7), one side of the fixed frame (7) is provided with a motor (8), and the output end of the motor (8) is connected with a round rod ( 9), a gear (10) is fixedly installed on the side wall of the round rod (9), and the gear (10) is engaged with the tooth plate (6). 2. The automatic expansion structure of a rack type caravan according to claim 1, characterized in that, a fixed block (12) is fixedly installed on the outer wall of the caravan body (1), and the fixed block (12) One side is provided with rain-proof film (13), and one side of described rectangular plate (5) is fixedly equipped with support frame (14), and one side of described support frame (14) is connected with retractable roller ( 15), the rainproof film (13) is connected with the retracting roller (15). 3. The rack-type caravan automatic expansion structure according to claim 2, characterized in that, the rainproof film (13) is made of opaque material, and the shape of the rainproof film (13) is rectangular. 4. The automatic expansion structure of a rack type caravan according to claim 1, wherein a U-shaped frame (16) is fixedly installed on one side of the rectangular plate (5), and the U-shaped frame (16) ) is hinged with a movable leg (17) on the inner side wall, and the top of the movable leg (17) is provided with a circular groove (19). 5. A rack-type caravan automatic expansion structure according to claim 4, characterized in that, the bottom of the movable leg (17) is fixedly equipped with an anti-slip pad (18), and the material of the anti-slip pad (18) For rubber. 6. The automatic expansion structure of a rack type caravan according to claim 4, characterized in that, a connection plate (20) is fixedly installed on one side of the rectangular plate (5), and a connection plate (20) of the connection plate (20) The top is threadedly connected with a threaded rod (21), and the threaded rod (21) is inserted between the circular groove (19), and the top of the threaded rod (21) is fixedly equipped with a twist block ( twenty two). 7. The rack-type caravan automatic expansion structure according to claim 1, characterized in that an observation window is installed on one side of the rectangular plate (5), and the material of the observation window is glass. 8. The automatic expansion structure of a rack type caravan according to claim 1, characterized in that, the outer wall of the rectangular frame (3) is provided with a reflective strip (11), and the reflective strip (11) is connected with the The rectangular frames (3) are bonded by glue.

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