Luggage trolley case mechanism

Abstract

The utility model discloses a luggage draw-bar box mechanism, which relates to the technical field of luggage draw bars and comprises a rod sleeve, a sliding cavity is arranged in the rod sleeve, auxiliary springs are mounted on two sides of the bottom end in the rod sleeve, a draw bar is arranged in the sliding cavity, and a separation press block is arranged in the middle of the top end of the draw bar. Supporting blocks are fixed to the two sides of the bottom end of the pull rod, spring limiting rods are fixed to the bottom ends of the supporting blocks, abutting rods penetrate through the two sides of the supporting blocks, limiting abutting blocks are fixed to the outer walls of the abutting rods, rod grooves are formed in the supporting blocks, and first pulleys and limiting rods are installed in the rod grooves; and the limiting rod is externally sleeved with a pressing spring. According to the pull rod, elastic friction clamping is adopted as a locking mechanism, in the lifting process of the pull rod, sliding of the pull rod is not interfered by the locking mechanism, the smoothness of the pull rod in the lifting adjustment process is greatly improved, and the comfort during adjustment and use is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage drawbars, in particular to a luggage drawbar box mechanism. Background Art

[0002] At present, a trolley case refers to a suitcase with a trolley and wheels. With the improvement of people's quality of life, people often use suitcases when they are relaxing or traveling on business. Therefore, the various performances of the suitcase are very important to users. At the same time, a trolley case is also divided into a single-tube trolley case and a double-tube trolley case because the case has a trolley. The tube of the trolley case is also divided into a square tube and a round tube, so as to facilitate dragging when walking, thereby reducing the burden on users.

[0003] The luggage trolley adopts a traditional locking mechanism to lock the position of the trolley. When controlling the length of the trolley during use, it is easy to get stuck. For example, China's authorized patent number 202321722399.5 is a luggage trolley controlled by a traditional mechanism, and it cannot solve the above-mentioned trolley jamming phenomenon. In order to solve the above-mentioned problems, we propose a luggage trolley mechanism. Utility Model Content

[0004] In view of the above-mentioned problems existing in the existing luggage pull rods with a silky pulling mechanism, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a luggage trolley case mechanism, by which the pull rod adopts elastic friction clamping as a locking mechanism. During the lifting and lowering process of the pull rod, there will be no locking mechanism to interfere with the sliding of the pull rod, which will greatly improve the smoothness of the pull rod during the lifting and lowering adjustment process, ensure the comfort during adjustment and use, and solve the problem of luggage trolleys with a smooth pulling mechanism.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A luggage trolley case mechanism comprises a rod sleeve, a sliding cavity is provided inside the rod sleeve, auxiliary springs are installed on both sides of the bottom end of the rod sleeve, a pull rod is installed in the sliding cavity, a separation button is provided in the middle of the top end of the pull rod, support blocks are fixed on both sides of the bottom end of the pull rod, a spring limiting rod is fixed on the bottom end of the support block, a push rod passes through both sides of the support block, a limiting push block is fixed on the outer wall of the push rod, a rod groove is provided inside the support block, a first pulley and a limiting rod are installed inside the rod groove, and a pressure spring is sleeved on the outside of the limiting rod, a cavity is provided inside the pull rod, and a second pulley and a control rope are installed in the cavity.

[0008] Preferably, one end of the limit rod is fixedly connected to the inner wall of the rod groove, and the other end of the limit rod passes through the interior of the support rod, one end of the pressure spring is fixed to the inner wall of the rod groove, and the other end of the pressure spring is fixed to the inner wall of the support rod, and the elasticity of the spring will ensure the stability of the support rod when it is pressed.

[0009] Preferably, the wheel rod of the first pulley passes through the two ends of the inner wall of the rod groove respectively, the first pulley is located directly above the limiting rod, and the wheel rod of the second pulley passes through the two ends of the cavity respectively, in order to change the pulling direction of the control rope.

[0010] Preferably, the two ends of the control rope are fixedly connected to the inner walls of the two groups of support rods, the control rope is looped over the wheel walls of the first pulley and the second pulley, the bottom end of the separation block passes through the interior of the cavity, and the bottom end of the separation block is located directly above the control rope, the first pulley and the second pulley will change the direction of the control rope, thereby quickly driving the pull rod to adjust the position.

[0011] Preferably, the outer wall of the limit stop block is in contact with the inner wall of the sliding cavity, the limit stop block is made of rubber, the bottom end of the limit rod is inserted into the top end of the auxiliary spring, and the auxiliary spring assists the lifting and lowering of the pull rod, facilitating the rapid adjustment of the pull rod position.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] 1. The utility model adopts elastic friction clamping as a locking mechanism through the pull rod. During the lifting process of the pull rod, there will be no locking mechanism to interfere with the sliding of the pull rod, which will greatly improve the silkiness of the pull rod during the lifting and adjusting process and ensure the comfort during adjustment.

[0014] 2. The utility model has an auxiliary spring installed inside the rod sleeve. During the sliding process of the pull rod, the auxiliary spring will give the pull rod elasticity for lifting and lowering, which will facilitate the rapid sliding effect of the pull rod and facilitate the rapid reaching of the use position of the pull rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the pull rod structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the pull rod of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the support block of the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the rod sleeve of the utility model.

[0021] Description of reference numerals:

[0022] 1. Rod sleeve; 2. Pull rod; 3. Separation button block; 4. Cavity; 5. Control rope; 6. Support block; 7. Retaining rod; 8. Limiting retaining block; 9. Spring limiting rod; 10. First pulley; 11. Limiting rod; 12. Compression spring; 13. Second pulley; 14. Rod groove; 15. Auxiliary spring; 16. Sliding cavity. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model embodiment discloses a luggage trolley case mechanism.

[0025] The utility model provides Figure 1-5 The luggage trolley case mechanism shown in the figure comprises a rod sleeve 1, a sliding cavity 16 is provided inside the rod sleeve 1, auxiliary springs 15 are installed on both sides of the bottom end of the rod sleeve 1, a pull rod 2 is built in the sliding cavity 16, a separation block 3 is provided in the middle of the top of the pull rod 2, support blocks 6 are fixed on both sides of the bottom end of the pull rod 2, a spring limiting rod 9 is fixed on the bottom end of the support block 6, a stop rod 7 is passed through both sides of the support block 6, a limit stop block 8 is fixed on the outer wall of the stop rod 7, and the support block 6 A rod groove 14 is opened inside, and a first pulley 10 and a limit rod 11 are installed inside the rod groove 14, and a pressure spring 12 is sleeved on the outside of the limit rod 11. A cavity 4 is opened inside the pull rod 2, and a second pulley 13 and a control rope 5 are built in the cavity 4. The pull rod 2 adopts elastic friction clamping as a locking mechanism. During the lifting and lowering process of the pull rod 2, there will be no locking mechanism to interfere with the sliding of the pull rod 2, which will greatly improve the smoothness of the pull rod 2 during the lifting and lowering adjustment process, and ensure the comfort during adjustment.

[0026] In order to ensure the stability of the pull rod when in use: Figure 4As shown, one end of the limit rod 11 is fixedly connected to the inner wall of the rod groove 14, and the other end of the limit rod 11 passes through the inside of the push rod 7, one end of the pressure spring 12 is fixed to the inner wall of the rod groove 14, and the other end of the pressure spring 12 is fixed to the inner wall of the push rod 7, and the limit rod 11 is fixed to the inside of the rod groove 14. During the sliding process of the push rod 7, it will slide on the limit rod 11 to ensure the stability of the push rod 7 during the sliding process, thereby ensuring the stability of the pull rod 7 when positioning.

[0027] To control the rapid opening and closing of the pull rod locking mechanism: Figure 3 and Figure 4 As shown, both sides of the wheel rod of the first pulley 10 respectively penetrate the two ends of the inner wall of the rod groove 14, the first pulley 10 is located directly above the limit rod 11, and the wheel rods of the second pulley 13 respectively penetrate the two ends inside the cavity 4, and the two ends of the control rope 5 are fixedly connected to the inner walls of the two groups of abutment rods 7 respectively, and the control rope 5 is sleeved on the wheel walls of the first pulley 10 and the second pulley 13, and the bottom end of the separation block 3 penetrates the interior of the cavity 4, and the bottom end of the separation block 3 is located directly above the control rope 5. The adaptive connection between the first pulley 10, the second pulley 13 and the control rope 5 will change the direction of the control rope 5, thereby facilitating the separation block 3 to directly control the opening and closing of the locking mechanism of the pull rod 2.

[0028] In order to ensure the tightness of the pull rod when locked: Figure 1 , Figure 2 and Figure 5 As shown, the outer wall of the limit stop block 8 is fitted to the inner wall of the sliding cavity 16, and the limit stop block 8 is made of rubber. The bottom end of the limit rod 11 is inserted into the top end of the auxiliary spring 15. The limit stop block 8 will have a friction clamping effect to ensure the tightness of the pull rod 2 when it is locked. At the same time, the auxiliary spring 15 will facilitate the convenience of pulling the pull rod 2.

[0029] During operation; when the pull rod 2 needs to be adjusted, the separation button 3 is pressed down based on the pull rod 2, and the separation button 3 will be pressed down onto the control rope 5, so that the control rope 5 is pressed. At this time, the two ends of the pull rope will shrink at the same time, and the control rope 5 will change direction through the second pulley 13, and then the push rod 7 is pulled through the first pulley 10, so that the end of the push rod 7 drives the limit push block 8 to separate from the sliding cavity 16 in the rod sleeve 1. At this time, the pull rod 2 will be free to slide up and down smoothly in the sliding cavity 16. At the same time, the auxiliary spring 15 will play an auxiliary elastic effect, which is convenient for the rise of the pull rod 2 to change the height that the pull rod 2 needs to be used. After reaching the required height, the separation button is released. At this time, the pressure spring 12 outside the limit rod 11 will restore its elasticity, and the limit push block 8 at the end of the control push rod 7 will be pressed back to the inner wall of the sliding cavity 16 to form a locking effect, which greatly improves the convenience of use, has a simple design, and is more practical.

[0030] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection;

[0032] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A luggage trolley case mechanism, comprising a rod sleeve (1), characterized in that: The rod sleeve (1) is provided with a sliding cavity (16) inside, auxiliary springs (15) are installed on both sides of the bottom end inside the rod sleeve (1), a pull rod (2) is installed in the sliding cavity (16), a separation block (3) is provided in the middle of the top end of the pull rod (2), support blocks (6) are fixed on both sides of the bottom end of the pull rod (2), a spring limiting rod (9) is fixed at the bottom end of the support block (6), a push rod (7) is passed through both sides of the support block (6), a limiting push block (8) is fixed on the outer wall of the push rod (7), a rod groove (14) is provided inside the support block (6), a first pulley (10) and a limiting rod (11) are installed inside the rod groove (14), and a pressure spring (12) is sleeved on the outside of the limiting rod (11), a cavity (4) is provided inside the pull rod (2), a second pulley (13) and a control rope (5) are installed in the cavity (4).

2. A luggage trolley case mechanism according to claim 1, characterized in that: One end of the limiting rod (11) is fixedly connected to the inner wall of the rod groove (14), and the other end of the limiting rod (11) passes through the interior of the push rod (7); one end of the push spring (12) is fixed to the inner wall of the rod groove (14), and the other end of the push spring (12) is fixed to the inner wall of the push rod (7).

3. The luggage trolley case mechanism according to claim 1, characterized in that: The two sides of the wheel rod of the first pulley (10) respectively penetrate the two ends of the inner wall of the rod groove (14); the first pulley (10) is located directly above the limiting rod (11); and the wheel rod of the second pulley (13) respectively penetrates the two ends inside the cavity (4).

4. The luggage trolley case mechanism according to claim 1, characterized in that: The two ends of the control rope (5) are fixedly connected to the inner walls of the two groups of push rods (7), the control rope (5) is sleeved on the wheel walls of the first pulley (10) and the second pulley (13), the bottom end of the separation block (3) passes through the interior of the cavity (4), and the bottom end of the separation block (3) is located directly above the control rope (5).

5. The luggage trolley case mechanism according to claim 1, characterized in that: The limit stop The outer wall of the block (8) is fitted to the inner wall of the sliding cavity (16), and the limit stop block (8) is made of rubber. The bottom end of the limiting rod (11) is inserted into the top end of the auxiliary spring (15).

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