CN220308598U

CN220308598U - Telescopic luggage handle

Info

Publication number: CN220308598U
Application number: CN202321308118.1U
Authority: CN
Inventors: 郑阳辉; 黄敏; 罗显盛; 陈少华
Original assignee: Zero One Innovative New Materials Shenzhen Co ltd
Current assignee: Zero One Innovative New Materials Shenzhen Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2024-01-09
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses a telescopic luggage handle, which comprises a handle part and a connecting part; the connecting parts are embedded at two ends of the handle part; the connecting part comprises a fixed shell, a pull rod arranged in the fixed shell, a spring group and a base assembly; one end of the pull rod is connected with the handle part; the other end is connected with the base component; the upper end of the spring group is fixed on the inner wall of the fixed shell, and the lower end of the spring group is detachably arranged on the base component; the handle part is pulled upwards to drive the pull rod to move upwards, so that the spring group is compressed from bottom to top to realize elastic stretching. Compared with the traditional telescopic handle made of rubber materials, the telescopic handle is made of materials which are difficult to wear, such as rigid plastics, stainless steel and the like, so that the probability of ageing damage of the handle is greatly reduced, meanwhile, the strength requirement in the stretching process is ensured, and the hand feeling is also considered. And all parts inside are of detachable structures, so that the detachable structure is convenient to detach and assemble, and the replacement of parts is also convenient.

Description

Telescopic luggage handle

Technical Field

The utility model relates to the technical field of luggage parts, in particular to a telescopic luggage handle.

Background

The handle of the case usually bears a relatively large tensile strength, so that the handle of the case is made of rigid materials in design, and the structure is similar to that of a weighing handle and the case of a patent CN201810829218.6, and the rigid connecting pieces are connected in a hinged manner. There are also some luggage handles made of materials such as rubber and resin for the purpose of pursuing hand feeling, but the materials are soft and hand-protecting, and can be made into a "telescopic handle", such as patent CN 201920642683.9-a telescopic luggage handle, although the tensile strength is poor. The telescopic handle finger in the prior art is provided with a connecting part between the handle main body and the fixing parts at two ends, when the handle main body is lifted, the connecting part allows the handle main body to be properly prolonged, and when the handle main body is put down, the connecting part is reset, so that the handle main body returns to the original length or position. The most common practice is to arrange two elongated grooves at two ends of the rubber handle body, wherein the two grooves are respectively fixed with the fixing pieces at two ends, so that the rubber handle body has a certain movable stroke. The disadvantages of this structure are: the retraction effect is poor and even the retraction cannot be performed due to the elasticity of the fully retracted rubber although the rubber is aged in the use process.

Therefore, the rigid luggage handle in the prior art has strong bearing capacity, but has poor hand feeling, is easy to hurt hands, and has long-term abrasion between rigid structural members, thus also affecting the service life; the handle made of rubber, resin and other materials is soft and handguard, but the materials are easy to age and deform, have poor bearing capacity, are not reasonable in structural design and are easy to damage.

And the box handle in the prior art is inconvenient to detach due to unreasonable structural design, and the use of the whole case is affected after individual parts are damaged.

Disclosure of Invention

The present utility model is directed to overcoming at least one of the above-mentioned drawbacks of the prior art and providing a retractable luggage handle to achieve elastic retraction of the handle to increase the useful life of the handle.

Specifically, the utility model provides a telescopic luggage handle, which comprises a handle part and a connecting part; the connecting parts are embedded at two ends of the handle part; the connecting part comprises a fixed shell, and a pull rod, a spring group and a base assembly which are arranged in the fixed shell; one end of the pull rod is connected with the handle part; the other end is connected with the base component; the upper end of the spring group is fixed on the inner wall of the fixed shell, and the lower end of the spring group is detachably arranged on the base component; the handle part is pulled upwards to drive the pull rod to move upwards, so that the spring group is compressed from bottom to top to realize elastic stretching.

In order to improve the service life, the pull rod is a stainless steel pull rod. When the handle part is pulled up, the stainless steel pull rod rises upwards along with the handle part, the base component upwards compresses the spring set, and the design of the spring set can keep pressure balance, and the inner limit structure of the fixed shell provides stable and reliable strength support for the suitcase. When the handle part is put down, the stainless steel pull rod stably sinks under the action of the resilience force of the spring group, and drives the handle part to reset until the handle part contacts the upper limit position of the fixed shell.

Further, the suitcase handle of the utility model also comprises a bearing, and the pull rod is sleeved in the bearing.

The bearing is cylindrical, the center shaft is provided with a through hole which penetrates through, the outer layer of the pull rod is integrally sleeved with the bearing, the bearing keeps the pull rod to be directly upwards and downwards in the stretching process, and the stretching stability is improved.

Further, the spring group is four groups of pressure springs, and the four groups of pressure springs are respectively vertically arranged at four corners of the base assembly.

The utility model is designed to be evenly distributed at four corners of the base assembly, so that the stress in the pulling or rebound process is more even.

Further, the base component comprises a baffle plate and a nut, the pull rod penetrates through the middle shaft of the baffle plate, and the bottom of the pull rod is fixed with the nut; the four corners of the baffle are provided with a group of pressure springs. Preferably, the baffle is a round plate, a through hole for the pull rod to pass through is formed in the middle of the baffle, four bosses are uniformly distributed on the periphery of the baffle, a convex column is arranged on the boss, and the lower end of the pressure spring is sleeved on the convex column.

The nut plays a role in fixing the baffle plate and the pull rod, and is also convenient to detach and maintain and replace parts. The utility model adopts the structural design of the boss, is convenient for the vertical design of the pressure spring, plays the role of fixing the bottom of the pressure spring, and can realize the function of quick assembly and disassembly.

When the handle part is in a retraction state, under the gravity state, the 4 springs are in a normal state or a slightly compressed state, the stainless steel pull rod sinks, and the baffle is positioned at the bottom of the inner side of the fixed shell. When the handle part is pulled up, the stainless steel pull rod is lifted up along with the handle part, the nut pulls the baffle upwards, so that 4 springs are compressed, the bearing keeps the straight upper and lower sides in the pulling process of the pull rod, the 4 springs keep pressure balance, and at the moment, the baffle contacts with the inner limiting structure of the cavity in the fixed shell to provide stable and reliable strength support for the suitcase.

Further, the handle portion includes a support layer and a filler layer; the inside of the supporting layer is hollow, the filling layer is arranged in the supporting layer, and two ends of the supporting layer are respectively and movably connected with the fixed shell; the side edges of the two ends of the supporting layer are respectively connected with the pull rod.

The outer support layer has higher plastic strength and is used for providing strength support; the filling layer of the inner layer is mainly used for filling in the shape and maintaining the whole shape and plays a role in connection.

Further, the two ends of the filling layer are respectively provided with an arc-shaped groove, the upper end of the pull rod is expanded to form a circular pull cap, and one side of the circular pull cap is embedded into the arc-shaped grooves.

The upper end of the pull rod is expanded and is a limiting structure in the process of pulling up the handle part; the top of the stainless steel pull rod is expanded to form a round pull cap, so that the effect of balancing pressure is achieved in the pulling process. In order to improve the compactness of the structure, one side of the round pulling cap is embedded into the arc-shaped groove of the filling layer, so that the embedded connection of the round pulling cap and the filling layer is realized.

Further, the upper end of the fixed shell is provided with a sliding rail part; the two ends of the supporting layer incline downwards to form a trapezoid clamping cap, and the trapezoid clamping cap is connected with the sliding rail part in a vertical sliding mode. Preferably, the inside of the fixed shell is hollow, and four groups of vertical sliding grooves for installing the spring groups are formed in the side wall.

The two ends of the supporting layer are matched with sliding grooves matched with the sliding rails, so that sliding connection of the two sliding grooves can be realized. The vertical chute is used for installing the spring group.

Furthermore, the outside limit of fixed casing still is equipped with the protection paster, the protection paster can dismantle with fixed casing and be connected.

Compared with the prior art, the utility model has the beneficial effects that:

(1) Compared with the traditional telescopic handle made of rubber materials, the elastic telescopic box handle provided by the utility model adopts materials which are difficult to wear, such as rigid plastics, stainless steel and the like, so that the ageing damage probability of the handle is greatly reduced, and meanwhile, the strength requirement in the stretching process is also ensured.

(2) According to the utility model, the bearing and four groups of springs which are uniformly distributed are designed, so that the stability of movement in the stretching and retracting process is ensured, and the phenomenon of paint knocking off of the handle main body caused by oblique movement is avoided; the slow reset is realized through the spring, and the whole fashion and science and technology sense is strong; fully ensures comfortable hand feeling in the lifting process.

(3) The elastic telescopic box handle has the advantages that the elastic telescopic box handle is of a detachable structure between all parts in the box handle, the box handle is convenient to detach and assemble, and parts are convenient to replace.

Drawings

Fig. 1 is a schematic perspective view of a handle of the case of embodiment 1.

Fig. 2 is an exploded view of the handle of the case of embodiment 1.

Fig. 3 is a schematic structural view of the case handle connecting portion hidden fixing case.

Fig. 4 is a schematic diagram showing the connection of the handle portion of the case body and the connection portion.

Fig. 5 is a bottom schematic view of the connection portion of the case handle.

Detailed Description

The drawings in the embodiments are used for describing the technical scheme in the embodiments of the utility model in more detail. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the utility model. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

It should be noted that, in the embodiment of the present application, directional indications (such as up, down, left, right, front, and rear … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

Examples

A telescopic luggage handle, as shown in figure 1, comprises a handle part 1 and a connecting part 2; the connecting parts 2 are embedded at two ends of the handle part 1; as shown in fig. 2, the connecting part 2 includes a fixed housing 21, and a pull rod 22, a spring group 23 and a base assembly 24 provided in the fixed housing 21; one end of the pull rod 22 is connected with the handle part 1; the other end is connected with the base assembly 24; the upper end of the spring group 23 is fixed on the inner wall of the fixed shell 21, and the lower end is detachably arranged on the base assembly 24; by pulling the handle portion 1 upwards, the pull rod 22 is driven to move upwards, so that the spring set 23 is compressed from bottom to top to realize elastic stretching.

As shown in fig. 2, the luggage handle of the present utility model further comprises a bearing 3, and the pull rod 22 is sleeved in the bearing 3. The bearing 3 is cylindrical, the center shaft is provided with a through hole which penetrates through, the whole sleeve is arranged on the outer layer of the pull rod 22, the bearing 3 keeps the pull rod 22 to be directly upwards and downwards in the stretching process, and the stretching stability is improved.

As shown in fig. 2 to 3, the spring set 23 is four sets of compression springs, and is vertically disposed at four corners of the base assembly 24.

Referring to fig. 2 to 3, the base assembly 24 includes a blocking piece 241 and a nut 242, the pull rod 22 passes through a central axis of the blocking piece 241, and the bottom is fixed with the nut 242; the four corners of the baffle 241 are provided with a set of compression springs.

Compared with the compression springs with less than 2 compression springs, the 4 groups of compression springs have the beneficial effects that the compression springs are stressed by the surface when stressed, so that the compression springs are more stable; compared with 3 compression springs, the method has the advantages that in case that the individual compression springs are damaged, at least three points of surface formation can be ensured, and the use experience is not reduced; the bearing which is vertically and directly arranged is matched, so that the stability of the utility model in the lifting and retracting process is greatly improved; because the vertical upper and lower parts are fully maintained, the pull rod, the fixed shell, the handle part and the like are not abraded in an inclined way, and the rigid material has firm and abrasion-resistant characteristics while the telescopic elastic sense is fully brought.

As shown in fig. 2, the handle part 1 comprises a support layer 11 and a filling layer 12; the support layer 11 is hollow, the filling layer 12 is disposed in the support layer 11, and two ends of the support layer 11 are respectively movably connected with the fixed housing 21 as shown in fig. 1; the two end sides of the supporting layer 11 are respectively connected with the pull rod 22.

As shown in fig. 4, two ends of the filling layer 12 are respectively provided with an arc-shaped groove 10, and the upper end of the pull rod 22 is expanded to form a circular pull cap 20, which is a limiting structure in the process of pulling up the handle portion 1. One side of the circular pulling cap 20 and the arc-shaped groove 10 are mutually avoided; in one embodiment, one side of the circular cap 20 is inserted into the arc-shaped groove 10, thereby making the structure more compact.

In the manufacturing process, the filling layer 12 and the pull rod 22 are respectively put into a mould, and the relative relation (avoiding or embedding) between the arc-shaped groove 10 of the filling layer 12 and the round pull cap 20 is noted and fixed; the corresponding material of the supporting layer 11 is injected into the mold, and the whole handle portion 1 and the pull rod 22 are injection molded. The structure has good integrity and simplifies the assembly procedure. The enlarged round pulling cap can reduce the pressure intensity to the handle part and reduce the damage probability of the handle part.

As shown in fig. 4, the upper end of the fixed housing 21 is provided with a slide rail portion 30; the two ends of the supporting layer 11 incline downwards to form a trapezoid clamping cap, and the trapezoid clamping cap is connected with the sliding rail part 30 in a vertically sliding mode. As shown in fig. 5, the fixed housing 21 is hollow, and the side wall is provided with four sets of vertical sliding grooves 40 for installing the spring set 23.

Referring to fig. 3, the blocking piece 241 is a special-shaped piece, a through hole for the pull rod 22 to pass through is formed in the middle of the blocking piece, four bosses 50 are uniformly distributed on the periphery of the blocking piece, a boss 60 is arranged on the boss 50, and the lower end of the compression spring is sleeved on the boss 60. As shown in fig. 2, a protective patch 70 is further disposed on the outer side of the fixed housing 21.

When the handle 1 is in the retracted state, the 4 springs are in a normal state or slightly compressed state under gravity, the stainless steel tie rod 22 is submerged, and the blocking piece 241 is located at the bottom of the inner side of the fixed housing 21. When the handle part 1 is pulled up, the stainless steel pull rod 22 is lifted up along with the handle part 1, the nut 242 pulls the baffle 241 up, so that 4 springs are compressed, the bearing 3 keeps the straight up and down in the stretching process of the pull rod 22, and the 4 springs keep pressure balance, and at the moment, the baffle 241 is contacted with the inner limiting structure of the inner cavity of the fixed shell 21 to provide stable and reliable strength support for the suitcase.

According to the vibration impact test method of the QBT 2922-2018 luggage according to the light industry standard of the people's republic of China, the qualification requirements are further improved according to the internal standard of the applicant enterprises; the handle of the case is subjected to 3500 times of shock impact tests. After the experiment is finished, the inspection finds that the luggage handle is free from falling or damage, and the experiment result shows that the quality of the luggage handle is higher than the standard requirement of 2000 times of shock impact of the middle-end draw-bar box and 3000 times of shock impact of the high-end draw-bar box in the industry.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model. Those skilled in the art can make other changes and modifications within the spirit of the utility model, which are intended to be within the scope of the utility model, without departing from the technical spirit of the utility model. Such variations, which are in accordance with the spirit of the utility model, are intended to be included within the scope of the utility model as claimed.

Claims

1. A telescopic luggage handle, which is characterized by comprising a handle part (1) and a connecting part (2); the connecting parts (2) are embedded at two ends of the handle part (1); the connecting part (2) comprises a fixed shell (21), and a pull rod (22), a spring group (23) and a base assembly (24) which are arranged in the fixed shell (21);

one end of the pull rod (22) is connected with the handle part (1); the other end is connected with the base component (24);

the upper end of the spring group (23) is fixed on the inner wall of the fixed shell (21), and the lower end of the spring group is detachably arranged on the base component (24);

the handle part (1) is pulled upwards to drive the pull rod (22) to move upwards, so that the spring group (23) is compressed from bottom to top to realize elastic stretching.

2. A telescopic luggage handle according to claim 1, further comprising a bearing (3), said pull rod (22) telescoping into said bearing (3).

3. A telescopic luggage handle according to claim 1, wherein the spring sets (23) are four sets of compression springs, each vertically disposed at four corners of the base assembly (24).

4. A telescopic luggage handle according to claim 3, wherein the base assembly (24) comprises a flap (241) and a nut, the pull rod (22) passing through the central axis of the flap (241), the bottom being fixed to the nut; the four corners of the baffle (241) are provided with a group of pressure springs.

5. The telescopic luggage handle according to claim 4, wherein the baffle (241) is a special-shaped piece, a through hole for the pull rod (22) to pass through is formed in the middle, four bosses (50) are uniformly distributed on the periphery of the baffle, a boss (60) is arranged on the boss (50), and the lower end of the pressure spring is sleeved on the boss (60).

6. A telescopic luggage handle according to claim 5, characterized in that the handle portion (1) comprises a support layer (11) and a filling layer (12); the inside of the supporting layer (11) is hollow, the filling layer (12) is arranged in the supporting layer (11), and two ends of the supporting layer (11) are respectively and movably connected with the fixed shell (21); the two end sides of the supporting layer (11) are respectively connected with the pull rod (22).

7. The telescopic luggage handle according to claim 6, wherein the two ends of the filling layer (12) are respectively provided with an arc-shaped groove (10), the upper end of the pull rod (22) is expanded to form a circular pull cap (20), and one side of the circular pull cap (20) is embedded into the arc-shaped groove (10).

8. A telescopic luggage handle according to claim 6, characterized in that the upper end of the stationary housing (21) is provided with a slide rail portion (30); the two ends of the supporting layer (11) incline downwards to form a trapezoid clamping cap, and the trapezoid clamping cap is connected with the sliding rail part (30) in an up-down sliding mode.

9. A telescopic luggage handle according to claim 7, characterized in that the inside of the fixed housing (21) is hollow, and the side walls are evenly distributed with four sets of vertical sliding grooves (40) for mounting the spring sets (23).

10. A telescopic luggage handle according to claim 1, characterized in that the outer side of the stationary housing (21) is further provided with a protective patch (70).