Improved luggage case pull rod device

Abstract

The utility model relates to the technical field related to draw-bar box parts, in particular to a luggage case draw bar improved device which comprises a handle assembly, a pushing assembly, an inner rod assembly and an outer rod assembly, the pushing assembly is installed at the bottom of the handle assembly in a telescopic mode, and the pushing assembly is installed in the inner rod assembly in a telescopic mode. The pull rod assembly comprises an inner rod assembly and an outer rod assembly, the inner rod assembly is installed on the outer rod assembly in a sliding mode, a second rod body is arranged in the outer rod assembly, and a plurality of limiting grooves are fixedly formed in the two sides of the outer side of the second rod body. The height of the chair can be adjusted according to needs of a user, so that the chair is more convenient to use, and the chair is higher in applicability to users with different heights.

Description

Technical Field

[0001] The utility model relates to the technical field related to the parts of a luggage case and a luggage case tie rod improvement device. Background Art

[0002] A trolley case refers to a suitcase with a trolley and wheels. It is widely used because of its convenience. At the same time, trolley cases are also divided into single-tube trolleys and double-tube trolleys because of the trolley on the case. The tube of the trolley is also divided into square tubes and round tubes, which is convenient for dragging when walking and greatly reduces the burden. Trolley cases can be carried or dragged. The wheels of the trolley cases we usually use are basically located at the bottom of the case, but modern people have designed a new form of trolley case, which is designed into a cylindrical shape, and the wheels are completely wrapped outside the case. This roller design allows this trolley case to better adapt to different terrains, such as directly pulling the case to go up and down stairs easily. In 2012, the main materials are cloth boxes, ABS hard boxes, leather boxes, PC, etc., and the usability is divided into three categories: fixed wheels, universal wheels, and the latest detachable universal wheel trolley cases.

[0003] The application number is CN202321125879.3, which discloses a draw rod structure for a draw rod case, wherein two fixing seats are fixedly arranged on the outer wall of the draw rod case body by rivets, the fixing seats are internally provided with a placement groove, the inner wall of the placement groove is provided with a guide groove, positioning seats are fixedly arranged at both ends of the U-shaped draw rod, the positioning seat is fixed inside the placement groove, and guide blocks are provided on both sides of the positioning seat that cooperate with the guide groove, and a positioning rod that passes through the fixing seat is fixedly arranged at the bottom end of the positioning seat. The U-shaped draw rod is an existing draw rod structure, the positioning seat is fixed to the bottom of the U-shaped draw rod, and the positioning seat is located inside the placement groove. Through the mutual cooperation of the guide block and the guide groove, a guide structure can be provided for the positioning seat inside the placement groove, the positioning rod can be limited by the insertion rod, and the insertion rod can be limited by the bending rod, which can improve the stability of the positioning seat after installation, and thereby improve the stability of the U-shaped draw rod when in use.

[0004] In the practical case proposed above, although a positioning rod passing through the fixing seat is fixedly arranged through the bottom end of the positioning seat, the U-shaped pull rod is an existing pull rod structure, the positioning seat is fixed at the bottom of the U-shaped pull rod, and the positioning seat is located inside the placement slot. Through the cooperation of the guide block and the guide slot, a guide structure can be provided for the positioning seat inside the placement slot, the positioning rod can be limited by the insertion rod, and the insertion rod can be limited by the bending rod, which can improve the stability of the positioning seat after installation, and thus improve the stability of the U-shaped pull rod when in use. However, there is a disadvantage that the middle pull rod assembly cannot be flexibly adjusted when the total pull rod is used. Therefore, it is necessary to fix a number of limit slots on the outer rod body of the pull rod assembly, so that when in use, different heights can be adjusted according to one's own needs, which makes it more convenient to use and more suitable for users of different heights. Utility Model Content

[0005] The purpose of the utility model is to provide a luggage case pull rod improvement device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model relates to a technical field related to parts for a suitcase trolley, and has an improved suitcase trolley device, comprising a handle assembly, a pushing assembly, an inner rod assembly and an outer rod assembly, wherein the bottom of the handle assembly is telescopically mounted with a pushing assembly, the pushing assembly is telescopically mounted in the inner rod assembly, the inner rod assembly is slidably mounted in the outer rod assembly, the outer rod assembly contains a rod body 2, and a plurality of limit grooves are fixedly opened on both sides of the outer side of the rod body 2.

[0008] Preferably, the handle assembly contains a handle body, a push button and a push block, the push button is telescopically installed in the middle of the top of the handle body, and the push block is fixedly installed at the bottom of the push button.

[0009] Preferably, the pushing assembly contains a pushing protective shell, a push rod and a return spring, the pushing protective shell is fixedly installed on both sides of the bottom of the handle body, a push rod is provided at the bottom of the pushing block, and a return spring is fixedly installed above the push rods on both sides, and the return spring is fixedly arranged inside the handle body.

[0010] Preferably, the inner rod assembly contains a rod body 1, a slide rail, a limit block, a fixing opening, a limiting fixing elastic band and a tough metal connecting section, the slide rails are fixedly installed on both sides of the rod body 1, the limit blocks are fixedly installed on the bottom of both sides of the slide rail, a tough metal connecting section is fixedly arranged in the middle of the two limit blocks, a fixing opening is fixedly opened on the rear side of the rod body 1, two upper and lower fixing openings are fixedly arranged on the same side of the rod body, and a limiting fixing elastic band is fixedly installed in the middle of the two fixing openings.

[0011] Preferably, the outer rod assembly contains a rod body 2, a slide groove and a limit groove, the slide grooves are fixedly provided on both sides of the inner wall of the rod body 2, and the limit grooves are fixedly provided on both sides of the slide groove.

[0012] Preferably, a fixing groove is fixedly provided in the middle of the top of the push rod.

[0013] The utility model has the following beneficial effects:

[0014] The utility model is a luggage case pull rod improvement device in which a plurality of limit grooves are fixedly opened on the outer rod body of the pull rod assembly, so that when in use, different heights can be adjusted according to one's own needs, which makes it more convenient to use and more applicable to users of different heights.

[0015] The utility model is a luggage case pull rod improvement device in which an elastic band assembly is fixedly arranged on the rear side of an inner rod assembly in the pull rod assembly. When in use, the elastic band assembly can serve as a mobile phone holder, providing a convenient mobile phone support when waiting for a bus, and the fixing is more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the overall appearance of the luggage compartment pull rod improvement device;

[0018] Figure 2 A schematic diagram of the stretching and unfolding structure of the luggage case pull rod improvement device;

[0019] Figure 3 A schematic diagram of the internal structure of the inner rod of the luggage case pull rod improvement device;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the tie rod assembly of the luggage case tie rod improvement device.

[0021] In the figure: 1. handle assembly; 2. push assembly; 3. inner rod assembly; 4. outer rod assembly; 101. handle body; 102. push button; 103. push block; 201. push protection shell; 202. push rod; 203. return spring; 2021. fixing groove; 301. rod body one; 302. slide rail; 303. limit block; 304. fixing mouth; 305. limit fixing elastic band; 306. tough metal connecting section; 401. rod body two; 402. slide groove; 403. limit groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 As shown, the utility model is an improved device for a suitcase pull rod, comprising a handle assembly 1, a pushing assembly 2, an inner rod assembly 3 and an outer rod assembly 4. The bottom of the handle assembly 1 is telescopically installed with the pushing assembly 2, the pushing assembly 2 is telescopically installed in the inner rod assembly 3, the inner rod assembly 3 is slidably installed in the outer rod assembly 4, and the outer rod assembly 4 contains a rod body 401, and a plurality of limit grooves 403 are fixedly opened on both sides of the outer side of the rod body 401.

[0024] The handle assembly 1 includes a handle body 101 , a push button 102 and a push block 103 . The push button 102 is telescopically installed in the middle of the top of the handle body 101 , and the push block 103 is fixedly installed at the bottom of the push button 102 .

[0025] The pushing assembly 2 contains a pushing protective shell 201, a push rod 202 and a return spring 203. The pushing protective shell 201 is fixedly installed on both sides of the bottom of the handle body 101. A push rod 202 is set at the bottom of the pushing block 103. The return spring 203 is fixedly installed above the push rods 202 on both sides. The return spring 203 is fixedly set inside the handle body 101.

[0026] The inner rod assembly 3 contains a rod body 301, a slide rail 302, a limit block 303, a fixing port 304, a limiting fixing elastic band 305 and a ductile metal connecting section 306. The slide rails 302 are fixedly installed on both sides of the rod body 301, the limit blocks 303 are fixedly installed on the bottom of both sides of the slide rail 302, and a ductile metal connecting section 306 is fixedly arranged in the middle of the two limit blocks 303. A fixing port 304 is fixedly opened on the rear side of the rod body 301, and two upper and lower fixing ports 304 are fixedly arranged on the same side of the rod body, and a limiting fixing elastic band 305 is fixedly installed in the middle of the two fixing ports 304.

[0027] The outer rod assembly 4 includes a rod body 401 , a slide groove 402 and a limit groove 403 . The slide grooves 402 are fixedly provided on both sides of the inner wall of the rod body 401 , and the limit grooves 403 are fixedly provided on both sides of the slide groove 402 .

[0028] A fixing groove 2021 is fixedly formed in the middle of the top of the push rod 202 .

[0029] Working principle: When using this device, the plurality of limit grooves 403 provided on the rod body 2 401 can be combined with the upper limit block of the upper rod body 1 301, so that the device can have the flexibility of adjustment at different heights when in use, which is no longer like the uniform height of the trolley cases on the market. When adjusting the height, it is only necessary to press the push button 102 to operate the bottom push rod 202 downward, and then the bottom of the push rod 202 will press down the tough metal connecting section 306 connected in the middle of the limit block 303, thereby driving the limit block 303 to shrink inward, and then when the rod body 1 301 is lifted up or pressed down to a suitable height, the user can release the hand, so that the limit block 303 protrudes outward, and then fits into the nearest limit groove 403 to be fixed. At the same time, when in use, the limit fixing elastic band 305 on the back of the rod body 1 301 can act as a mobile phone holder. When waiting for the bus, the mobile phone can be placed in the limit fixing elastic bands 305 on both sides for fixing.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can well understand and use the present invention. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A luggage case pull rod improvement device, comprising a handle assembly (1), a push assembly (2), an inner rod assembly (3) and an outer rod assembly (4), characterized in that: A pushing assembly (2) is telescopically mounted at the bottom of the handle assembly (1); the pushing assembly (2) is telescopically mounted inside an inner rod assembly (3); the inner rod assembly (3) is slidably mounted on an outer rod assembly (4); the outer rod assembly (4) contains a second rod body (401); and a plurality of limit grooves (403) are fixedly provided on both sides of the outer side of the second rod body (401).

2. The luggage case pull rod improvement device according to claim 1, characterized in that: The handle assembly (1) contains a handle body (101), a push button (102) and a push block (103); the push button (102) is telescopically mounted in the middle of the top of the handle body (101), and the push block (103) is fixedly mounted at the bottom of the push button (102).

3. The luggage case pull rod improvement device according to claim 2, characterized in that: The pushing assembly (2) contains a pushing protective shell (201), a push rod (202) and a return spring (203); the pushing protective shell (201) is fixedly mounted on both sides of the bottom of the handle body (101); a push rod (202) is arranged at the bottom of the pushing block (103); return springs (203) are fixedly mounted above the push rods (202) on both sides; and the return spring (203) is fixedly arranged inside the handle body (101).

4. The luggage case pull rod improvement device according to claim 1, characterized in that: The inner rod assembly (3) comprises a rod body (301), a slide rail (302), a limit block (303), a fixing opening (304), a limiting fixing elastic band (305) and a ductile metal connecting section (306); the slide rails (302) are fixedly installed on both sides of the rod body (301); the limit blocks (303) are fixedly installed on the bottoms of both sides of the slide rail (302); a ductile metal connecting section (306) is fixedly arranged between the two limit blocks (303); a fixing opening (304) is fixedly opened on the rear side of the rod body (301); two upper and lower fixing openings (304) are fixedly arranged on the same side of the rod body; and a limiting fixing elastic band (305) is fixedly installed between the two fixing openings (304).

5. The luggage case pull rod improvement device according to claim 1, characterized in that: The outer rod assembly (4) contains a second rod body (401), a slide groove (402) and a limit groove (403); the slide grooves (402) are fixedly provided on both sides of the inner wall of the second rod body (401); and the limit grooves (403) are fixedly provided on both sides of the slide groove (402).

6. The luggage case pull rod improvement device according to claim 3, characterized in that: A fixing groove (2021) is fixedly provided in the middle of the top of the push rod (202).

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