Luggage wheel with damping function

Abstract

The utility model discloses a luggage wheel with a damping function, which relates to the technical field of luggage wheels and comprises a roller, the roller is rotatably arranged in a support, a lower mounting tube is arranged at the top of the support, a spring is mounted in an inner cavity of the lower mounting tube, an upper mounting tube is fittingly arranged in the lower mounting tube, and the upper mounting tube is rotatably mounted on a mounting frame through a connecting plate. Moving grooves are formed in the peripheral side of the upper mounting pipe in an array mode, moving pipes are arranged on the peripheral side of the top of the lower mounting pipe in an array mode, screw rods are spirally connected into the moving pipes, the two ends of each screw rod are connected with a rotary knob and a limiting rod respectively, and the diameter of each limiting rod is the same as the width of the corresponding moving groove. When the spring needs to be maintained or replaced, the limiting rod is separated from the moving groove by rotating the knob, and the upper mounting pipe can be taken out from the lower mounting pipe, so that the spring can be conveniently maintained or replaced, the whole luggage wheel does not need to be replaced or maintained, and the maintenance cost and difficulty are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of luggage wheel, specifically to a luggage wheel with shock -absorbing function. BACKGROUND

[0002] Luggage is also called trolley case, and is a common article for people to travel or go on a business trip, in order to save physical strength in a long journey, people will generally choose trolley case to hold luggage, because the trolley case has a large volume to hold articles, and the bottom of the case has wheels and the upper part of the case has a handle, so that the user can freely drag the case through the handle, which is convenient to carry and saves time and effort, in the prior art, the pulley of the luggage is rigidly connected to the outside of the case, and the exposed pulley is easily damaged due to external impact during the dragging process of the trolley case on different road surfaces.

[0003] The Chinese utility model patent with patent application number 202123269285.3 provides a luggage pulley with shock-absorbing function, which can change the previous rigid connection into movable connection by setting the internal connecting rod, and the bottom of the internal connecting rod is provided with an extension rod and a return spring, so that the pulley can unload force through the extension and return of the extension rod and the return spring during sliding, reducing the influence of vibration caused by uneven road surface on the pulley, and the internal protection assembly can reduce the impact of the internal connecting rod on the sliding groove when the luggage is jolted, increasing the service life of the pulley structure.

[0004] However, it is found that when the spring is weakened, deformed or even damaged due to long-term use, frequent vibration unloading and the like, the spring in the device is inside the sliding groove, which means that the spring cannot be repaired or replaced alone, and the entire luggage wheel has to be replaced or repaired, increasing the maintenance cost and difficulty. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a luggage wheel with shock-absorbing function, which solves the problem that the spring is inside and difficult to repair or replace alone, and the entire luggage wheel has to be replaced or repaired, increasing the maintenance cost and difficulty.

[0006] To achieve the above object, the utility model discloses a luggage wheel with damping function through the following technical schemes: a luggage wheel with damping function, including the gyro wheel, the gyro wheel rotation is arranged in the support, the top of support is provided with lower installation pipe, the spring is installed in the lower installation pipe inner chamber, the inside of lower installation pipe is adapted with upper installation pipe, the upper installation pipe is rotatably installed with mounting frame through the connecting plate, the lateral array of upper installation pipe is provided with mobile groove, the lateral array of the top of lower installation pipe is provided with mobile pipe, the spiral rod is spirally connected in mobile pipe, and the both ends of spiral rod are connected with knob and limit rod respectively, and the diameter of limit rod is same with the width of mobile groove.

[0007] Preferably, the first mounting column is fixedly installed in the lower installation pipe, and the second mounting column is fixedly arranged on the connecting plate.

[0008] Preferably, the first mounting column is fixedly installed in the lower installation pipe, and the second mounting column is fixedly arranged on the connecting plate.

[0009] Preferably, the first mounting column is fixedly installed in the lower installation pipe, and the second mounting column is fixedly arranged on the connecting plate.

[0010] Preferably, the both ends of spring are connected with connecting rings, and the connecting rings of the both ends of spring are correspondingly adapted with the installation groove and the inner cavity of upper installation pipe.

[0011] Preferably, the connecting plate is bonded with the buffer washer, and the buffer washer is sleeved outside the upper installation pipe.

[0012] The utility model discloses a luggage wheel with damping function. The following beneficial effects are possessed:

[0013] (1), the utility model discloses when needing to maintain or replace spring, makes limit rod from mobile groove and comes out through rotating knob, can take out upper installation pipe from lower installation pipe, thereby conveniently maintaining or replacing spring, need not replacing or maintaining entire luggage wheel, greatly reduce maintenance cost and difficulty.

[0014] (2), the first mounting column and the second mounting column of the utility model provide stable mounting position for the connecting seat, so that the connecting seat can be firmly fixed on the corresponding component. The connecting seat is connected through the elastic pad, and when the luggage wheel is vibrated, the elastic pad can further absorb and buffer the vibration energy, thereby enhancing the stability and reliability of the whole damping structure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure display drawing of the utility model;

[0016] Figure 2 It is the utility modelFigure 1 Structure display drawing of lower installation pipe;

[0017] Figure 3 For the utility model Figure 1 Structure display drawing of upper installation pipe;

[0018] Figure 4 For the utility model Figure 1 Connection section view of upper installation pipe and lower installation pipe;

[0019] Figure 5 For the utility model Figure 4 Enlarged schematic view of middle A part.

[0020] In the figure, 1, roller; 2, support;

[0021] 3, lower installation pipe; 31, installation groove; 32, first installation column; 33, knob; 34, moving pipe; 35, limiting rod; 36, screw rod;

[0022] 4, mounting bracket;

[0023] 5, connecting plate; 51, upper installation pipe; 52, moving groove; 53, buffer washer; 54, second installation column;

[0024] 6, spring; 61, connecting ring;

[0025] 7, elastic pad; 71, connecting seat. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Embodiment 1: please refer to Figures 1-5 The utility model provides a kind of luggage wheel with shock-absorbing function, including roller 1, roller 1 is rotationally arranged in support 2, the top of support 2 is provided with lower installation pipe 3, spring 6 is installed in the inner cavity of lower installation pipe 3, the inside of lower installation pipe 3 is adapted with upper installation pipe 51, upper installation pipe 51 is rotationally installed with mounting bracket 4 by connecting plate 5, and the periphery of upper installation pipe 51 is arrayed with moving groove 52, the top periphery of lower installation pipe 3 is arrayed with moving pipe 34, screw rod 36 is spirally connected in moving pipe 34, the both ends of screw rod 36 are connected with knob 33 and limiting rod 35 respectively, and the diameter of limiting rod 35 is same with the width of moving groove 52;

[0028] The first mounting column 32 is fixedly installed inside the lower mounting pipe 3, and the second mounting column 54 is fixedly arranged on the connecting plate 5;

[0029] The connecting seat 71 is sleeved on the first mounting column 32, and another connecting seat 71 is sleeved on the second mounting column 54; the connecting seat 71 in the upper mounting pipe 51 is connected with the connecting seat 71 in the lower mounting pipe 3 through the elastic pad 7;

[0030] The installation groove 31 is arranged inside the lower mounting pipe 3;

[0031] The connecting ring 61 is connected to both ends of the spring 6, and the connecting ring 61 at both ends of the spring 6 is respectively matched with the installation groove 31 and the inner cavity of the upper mounting pipe 51;

[0032] The buffer washer 53 is adhered on the connecting plate 5, and the buffer washer 53 is sleeved outside the upper mounting pipe 51.

[0033] Specifically, when the rotary knob 33 is rotated, the screw rod 36 is rotated, and the screw rod 36 drives the limiting rod 35 to move in the moving pipe 34 due to the screw connection. With the rotation of the rotary knob 33, the limiting rod 35 gradually comes out of the moving groove 52 and enters the moving pipe 34. When the limiting rod 35 completely comes out of the moving groove 52, the upper mounting pipe 51 is no longer limited and can be taken out of the lower mounting pipe 3, so that the spring 6 or the elastic pad 7 installed in the inner cavity of the lower mounting pipe 3 can be replaced;

[0034] After replacement, the upper mounting pipe 51 is inserted into the lower mounting pipe 3, the moving groove 52 on the upper mounting pipe 51 is aligned with the moving pipe 34 on the top periphery of the lower mounting pipe 3, the limiting rod 35 is aligned with the moving groove 52, and then the rotary knob 33 is rotated, so that the screw rod 36 drives the limiting rod 35 to gradually enter the moving groove 52. The rotary knob 33 is continuously rotated until the limiting rod 35 completely enters the moving groove 52, at which time the upper mounting pipe 51 is fixedly limited on the lower mounting pipe 3, the installation is completed, the diameter of the limiting rod 35 is the same as the width of the moving groove 52, and the relative rotation of the upper mounting pipe 51 and the lower mounting pipe 3 can be avoided;

[0035] The spring 6 is installed in the inner cavity of the lower mounting pipe 3, and the two ends thereof are respectively matched with the mounting groove 31 of the lower mounting pipe 3 and the inner cavity of the upper mounting pipe 51 through the connecting rings 61. When the luggage wheel is subjected to vibration, the spring 6 will be elastically deformed, and a part of the vibration energy is absorbed and buffered through the expansion and contraction of the spring 6, so as to play a preliminary damping effect. The elastic pad 7 is made of rubber material, and can further absorb and buffer the vibration energy on the basis of the damping of the spring 6. When the spring 6 is expanded and contracted due to vibration, the elastic pad 7 will also be deformed correspondingly. According to different vibration frequencies and amplitudes, more energy is adapted and consumed through the elastic deformation of the elastic pad 7, so as to enhance the damping effect. Meanwhile, when the luggage wheel is subjected to large vibration, the buffer washer 53 can reduce the collision between the connecting plate 5 and the lower mounting pipe 3, and can also absorb a part of the vibration energy.

[0036] Through the ingenious cooperation of the knob 33, the screw rod 36, the limiting rod 35, the moving pipe 34 and the moving groove 52, when the spring 6 or the elastic pad 7 needs to be replaced, the limiting of the upper mounting pipe 51 can be released by simply rotating the knob 33, and the upper mounting pipe 51 can be taken out without a complicated disassembly process. After replacement, the fixing of the upper mounting pipe 51 can be quickly completed through the operation of the knob 33, so that the efficiency of maintenance and replacement is greatly improved, the operation difficulty is reduced, and the time and labor cost are saved.

[0037] Working principle: when the luggage is pushed to move on different road surfaces, the roller 1 rolls on the ground, and when encountering uneven road surfaces or being subjected to vibration, the spring 6 will be elastically deformed, and a part of the vibration energy is absorbed and buffered through the expansion and contraction of the spring 6, so as to play a preliminary damping effect. At the same time of the expansion and contraction of the spring 6, the elastic pad 7 will also be deformed correspondingly. According to different vibration frequencies and amplitudes, more energy is adapted and consumed through the elastic deformation of the elastic pad 7, so as to further enhance the damping effect.

[0038] When encountering large vibration, the buffer washer 53 can reduce the collision between the connecting plate 5 and the lower mounting pipe 3, and can also absorb a part of the vibration energy, so as to assist the spring 6 and the elastic pad 7 to dampen, so that the luggage wheel can better cope with vibration and ensure the stable movement of the luggage.

[0039] When the spring 6 or the elastic pad 7 needs to be repaired or replaced due to long-term use or other reasons, the knob 33 is rotated, and the screw rod 36 is rotated due to the screw connection. The limiting rod 35 will move in the moving pipe 34. With the rotation of the knob 33, the limiting rod 35 is gradually taken out of the moving groove 52 and enters the moving pipe 34. When the limiting rod 35 is completely taken out of the moving groove 52, the upper mounting pipe 51 is no longer limited, and can be taken out of the lower mounting pipe 3.

[0040] After the upper mounting pipe 51 is taken out, the spring 6 or the elastic pad 7 mounted in the inner cavity of the lower mounting pipe 3 is replaced, after the replacement, the installation step is repeated, the upper mounting pipe 51 is inserted into the lower mounting pipe 3, the movement groove 52 and the movement pipe 34 are aligned, the limiting rod 35 is aligned with the movement groove 52, the knob 33 is rotated to make the limiting rod 35 enter the movement groove 52 and fix the upper mounting pipe 51, and the luggage wheel is continuously used.

[0041] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A luggage wheel with shock-absorbing function, comprising a roller (1) which is rotatably arranged in a bracket (2), characterized in that: The top of the support (2) is provided with a lower mounting pipe (3), a spring (6) is mounted in the inner cavity of the lower mounting pipe (3), the inside of the lower mounting pipe (3) is adapted with an upper mounting pipe (51), the mounting rack (4) is rotatably mounted on the upper mounting pipe (51) through a connecting plate (5), a plurality of moving grooves (52) are arranged on the periphery of the upper mounting pipe (51), a plurality of moving pipes (34) are arranged on the periphery of the top of the lower mounting pipe (3), a helical rod (36) is spirally connected in the moving pipe (34), a knob (33) and a limiting rod (35) are respectively connected to the two ends of the helical rod (36), and the diameter of the limiting rod (35) is the same as the width of the moving groove (52).

2. The luggage wheel with shock-absorbing function according to claim 1, characterized in that: The first mounting column (32) is fixedly mounted in the inner cavity of the lower mounting pipe (3), and the second mounting column (54) is fixedly arranged on the connecting plate (5).

3. The luggage wheel with shock-absorbing function according to claim 2, characterized in that: The first mounting column (32) is sleeved with a connecting seat (71), the second mounting column (54) is sleeved with another connecting seat (71), and the connecting seat (71) in the upper mounting pipe (51) and the connecting seat (71) in the lower mounting pipe (3) are connected through an elastic pad (7).

4. The luggage wheel with shock-absorbing function according to claim 1, characterized in that: The inner cavity of the lower mounting pipe (3) is provided with an installation groove (31).

5. The luggage wheel with shock-absorbing function according to claim 4, characterized in that: The two ends of the spring (6) are connected with connecting rings (61), and the connecting rings (61) at the two ends of the spring (6) are respectively adapted with the installation groove (31) and the inner cavity of the upper mounting pipe (51).

6. The luggage wheel with shock-absorbing function according to claim 1, characterized in that: The connecting plate (5) is attached with a buffer washer (53), and the buffer washer (53) is sleeved outside the upper mounting pipe (51).

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