Connectable draw-bar box

Abstract

The utility model relates to the technical field of draw-bar boxes, in particular to a connectable draw-bar box, springs are arranged on the outer sides of fixing blocks, and the two ends of the springs are fixedly connected with the fixing blocks and clamping blocks respectively. According to the connectable draw-bar box, cylinders on the two sides are extruded inwards, the cylinders move to drive inserting rods to slide along the inner walls of fixing blocks, springs are compressed at the same time, when the inserting rods on the two sides enter clamping blocks and cannot move, a handle on the second box body is held, the second box body is lifted, then the clamping blocks are inserted into grooves of the first box body, and then the two cylinders are loosened, so that the first box body and the second box body are connected. By utilizing the elasticity of the spring, the inserting rod quickly enters the inserting opening of the first box body, so that the first box body and the second box body are connected together, the contact area between the second box body and the inner side of the first box body can be increased through the clamping block, and meanwhile, double locking can be performed through the clamping block and the inserting rod; and the first box body and the second box body are firmer after being connected.

Description

Technical Field

[0001] This utility model relates to the field of trolley case technology, specifically to a connectable trolley case. Background Technology

[0002] A rolling suitcase is a type of luggage equipped with a pull handle and wheels. It is widely used due to its convenience. Rolling suitcases are further categorized by the pull handle: single-tube and double-tube handles are available. The handle itself can also be square or round, designed to facilitate dragging while walking and significantly reduce the burden on the rider.

[0003] For example, a connectable trolley case with announcement number "CN203897534U" allows the protrusion to slide along a slot when the entire connecting part retracts into the case body, protecting the protrusion from friction with the case body and reducing wear. However, in bumpy or vibrating environments, the protrusion of this connectable trolley case can wear down, causing the fit with the mounting hole to loosen and affecting the stability of the connection. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the protrusions wear down under bumpy and vibrating conditions, causing the fit with the mounting holes to become loose and affecting the firmness of the connection, and to propose a trolley case that can be connected.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a connectable trolley case, including a first case body and a second case body, the inner sides of the first case body and the second case body are fitted together, the left side of the second case body is provided with a connecting structure, the connecting structure includes a locking block, the inner wall of the locking block is fixedly connected to two fixing blocks, the inner wall of the fixing blocks is slidably connected to a plug rod, the outer wall of the plug rod is slidably connected to the locking block and the first case body respectively, and the outer side of the fixing blocks is provided with springs, the two ends of the springs are fixedly connected to the fixing blocks and the locking blocks respectively.

[0007] Preferably, the outer wall of the card block is slidably connected to the first housing, and a cylinder is fixedly connected to the upper inner side of each insertion rod.

[0008] Preferably, the outer wall of the cylinder is slidably connected to the baffle and the rubber pad respectively, and multiple iron blocks are fixedly connected below the baffle.

[0009] Preferably, the outer walls of the iron blocks are all magnetically connected to the magnets, and the outer walls of the magnets are all fixedly connected to the card blocks.

[0010] Preferably, handles are fixedly connected to the lower outer sides of both the first and second boxes, and pull rods are slidably connected to the upper outer sides of both the first and second boxes.

[0011] Preferably, both the first and second housings are equipped with multiple casters at their bottoms.

[0012] The present invention proposes a connectable trolley case, the advantages of which are as follows: through the cooperation of the second case, the first case, and the connecting structure, the cylinders on both sides are squeezed inward. The movement of the cylinders causes the insert rod to slide along the inner wall of the fixing block, while the spring is compressed. When the insert rods on both sides enter the inside of the locking block and cannot move, the handle on the second case is grasped to lift the second case. Then the locking block is inserted into the groove of the first case. Then the two cylinders are released, and the elasticity of the spring is used to make the insert rod quickly enter the insertion port of the first case, thereby connecting the first case and the second case together. The locking block can increase the contact area between the second case and the inner side of the first case. At the same time, the locking block and the insert rod can provide double locking, making the connection between the first case and the second case more secure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A partial front sectional view;

[0015] Figure 3 for Figure 2 Partial top sectional view;

[0016] Figure 4 for Figure 2 A magnified view of part A in the diagram;

[0017] Figure 5 for Figure 2 A partial left sectional view;

[0018] Figure 6 for Figure 5 A magnified view of part B in the diagram;

[0019] Figure 7 for Figure 1 A magnified view of part C in the diagram.

[0020] In the diagram: 1. First housing, 2. Casters, 3. Connecting structure, 301. Locking block, 302. Fixing block, 303. Insert rod, 304. Cylinder, 305. Spring, 306. Baffle, 307. Rubber pad, 4. Second housing, 5. Pull rod, 6. Iron block, 7. Magnet, 8. Handle. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] See attached document Figure 1-7In this embodiment, a connectable trolley case includes a first case body 1 and a second case body 4. The inner sides of the first case body 1 and the second case body 4 are fitted together. A connecting structure 3 is provided on the left side of the second case body 4. The connecting structure 3 includes a locking block 301. Two fixing blocks 302 are fixedly connected to the inner wall of the locking block 301. The inner walls of the fixing blocks 302 are slidably connected to the insert rods 303. The outer walls of the insert rods 303 are slidably connected to the locking block 301 and the first case body 1, respectively. Springs 305 are provided on the outer side of the fixing blocks 302. The elastic coefficient of the springs 305 is selected according to actual needs to meet the working requirements. The two ends of the springs 305 are fixedly connected to the fixing blocks 302 and the locking blocks 301, respectively.

[0023] The outer wall of the locking block 301 is slidably connected to the first box 1. A cylinder 304 is fixedly connected to the upper inner side of the insertion rod 303. The outer wall of the cylinder 304 is slidably connected to the baffle 306 and the rubber pad 307 respectively. The rubber pad 307 can play a sealing role. Multiple iron blocks 6 are fixedly connected to the lower part of the baffle 306. The outer wall of the iron blocks 6 is magnetically connected to the magnet 7. The outer wall of the magnet 7 is fixedly connected to the locking block 301. A handle 6 is fixedly connected to the lower outer side of the first box 1 and the second box 4. A pull rod 5 is slidably connected to the upper outer side of the first box 1 and the second box 4. Multiple casters 2 are installed at the bottom of the first box 1 and the second box 4.

[0024] Working principle;

[0025] When using a connectable rolling suitcase:

[0026] The user will press the cylinders 304 on both sides inward. The cylinders 304 move and drive the insertion rod 303 to slide along the inner wall of the fixing block 302. At the same time, the spring 305 is compressed. When the insertion rods 303 on both sides enter the interior of the locking block 301 and cannot move, the user will hold the handle 8 on the second box 4 and lift the second box 4. Then, the locking block 301 will be inserted into the groove of the first box 1. Then, the two cylinders 304 will be released. Using the elasticity of the spring 305, the insertion rod 303 will quickly enter the insertion port of the first box 1, thereby connecting the first box 1 and the second box 4 together. The first box 1 and the second box 4 can be folded open along the hinge on the front side. This is a relatively mature existing technology and will not be described in detail. The locking block 301 can increase the contact area between the second box 4 and the inner side of the first box 1, making the connection between the first box 1 and the second box 4 more secure.

[0027] Then, multiple iron blocks 6 are inserted into the corresponding grooves above the card block 301, while two cylinders 304 pass through the rubber pad 307 and the baffle 306. The iron blocks 6 are attracted by the magnet 7, so that the rubber pad 307 is pressed against the cylinder 304 and the card block 301, which plays a sealing role and prevents rainwater and dust from entering the inside of the card block 301. The baffle 306 can restrict the two cylinders 304 from moving back and forth.

[0028] When it is necessary to disassemble the first box 1 and the second box 4, the operator holds the grooves on both sides of the baffle 306 and moves it upwards to separate the magnet 7 and the iron block 6. Then, the operator presses the cylinders 304 on both sides inwards. When the cylinders 304 can no longer be moved, the insert rod 303 is removed from the insertion port of the first box 1. Then, the operator holds the handle 8 on the second box 4 and removes the second box 4 and the locking block 301 from the inside of the first box 1.

[0029] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A connectable trolley case comprising a first case body (1) and a second case body (4), the first case body (1) and the second case body (4) being inboard abutting, characterised in that: The second box (4) has a connecting structure (3) on the left side. The connecting structure (3) includes a locking block (301). The inner wall of the locking block (301) is fixedly connected to two fixing blocks (302). The inner wall of the fixing blocks (302) is slidably connected to the insert rod (303). The outer wall of the insert rod (303) is slidably connected to the locking block (301) and the first box (1) respectively. The outer side of the fixing blocks (302) is provided with springs (305). The two ends of the springs (305) are fixedly connected to the fixing blocks (302) and the locking blocks (301) respectively.

2. The connectable luggage case of claim 1, wherein: The outer wall of the card block (301) is slidably connected to the first box (1), and a cylinder (304) is fixedly connected to the upper inner side of the insertion rod (303).

3. The connectable luggage case of claim 2, wherein: The outer wall of the cylinder (304) is slidably connected to the baffle (306) and the rubber pad (307), and a plurality of iron blocks (6) are fixedly connected below the baffle (306).

4. The connectable luggage case of claim 3, wherein: The outer walls of the iron blocks (6) are all magnetically connected to the magnets (7), and the outer walls of the magnets (7) are all fixedly connected to the card blocks (301).

5. The connectable luggage case of claim 1, wherein: Handles (8) are fixedly connected to the lower outer side of the first box (1) and the second box (4), and pull rods (5) are slidably connected to the upper outer side of the first box (1) and the second box (4).

6. The connectable luggage case of claim 1, wherein: The bottom of the first box (1) and the second box (4) are each equipped with multiple casters (2).

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