CN108209092B

CN108209092B - Trolley case with dumping protection function

Info

Publication number: CN108209092B
Application number: CN201810070215.9A
Authority: CN
Inventors: 黄德懿
Original assignee: Jiaxing Hongguan Intelligent Technology Co Ltd
Current assignee: Jiaxing Hongguan Intelligent Technology Co., Ltd
Priority date: 2016-05-25
Filing date: 2016-05-25
Publication date: 2020-03-17
Anticipated expiration: 2036-05-25
Also published as: CN105901874A; CN108209092A; CN105901874B

Abstract

The invention discloses a draw-bar box with a dumping protection function, which comprises a box body with casters, a telescopic draw-bar arranged on the box body and provided with a handle, and a positioning ring fixedly sleeved on the handle, wherein at least two clamping positions are arranged on the positioning ring; the rotating ring is rotatably sleeved on the positioning ring; the bracket can be fixedly connected to the rotating ring in a rotating way along with the rotating ring; the clamping rod is connected to the bracket in a sliding manner in a manner of moving up and down, and the front end of the clamping rod can extend into the clamping position; the spring is arranged in the bracket and used for pushing the front end of the clamping rod to extend into the clamping position; the button is connected to the support in a sliding mode and connected with the rear end of the clamping rod, and when the button is pressed to move towards the inside of the support, the button can push the front end of the clamping rod to exit to the outside of the clamping position. The bracket can be fixed on different rotating angles, can meet the requirements of different occasions, has a dumping protection function, and has a better using effect.

Description

Trolley case with dumping protection function

This application is a divisional application of the patent application with application number 201610355388.6. To remedy the defect of the narrow protection scope of the claims caused by improper modification of the parent project.

Technical Field

The invention relates to a draw-bar box, in particular to a draw-bar box with a dumping protection function.

Background

Patent application No. CN201120300034.4 discloses a multifunctional suitcase with a handle frame, wherein the handle frame is limited at different angles by a button on the handle, and the button is also used for controlling the extension and retraction of the draw bar, so that when the angle of the handle or the extension and retraction length of the draw bar needs to be adjusted independently, the other one is easily adjusted by mistake. Moreover, since the button is directly pressed by fingers, a larger width is required, and the width limits the number and the angle of the positioning holes for matching the tube sleeve with the button, so that the handle holder can only be limited to a special angle such as 90 degrees or 180 degrees, and the application range of the functions of the handle holder is limited. In addition, the handle holder is very vulnerable to damage when the case is opened, especially when the case is heavily loaded, if the case is dropped backwards.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the draw-bar box which is provided with a support, has a draw-bar box controlled by a single button and has a dumping protection function.

The technical scheme adopted by the invention for solving the problems is as follows:

a draw-bar box with a dumping protection function comprises a box body with casters, a telescopic draw bar which is arranged on the box body and is provided with a handle, and is characterized in that the handle comprises a handle main body and a mounting seat, mandrel sections extend from two sides of the handle main body, the mandrel sections are inserted into the mounting seat, the draw-bar box also comprises a positioning ring which is fixedly sleeved on the mandrel sections and clamped between the handle main body and the mounting seat, at least two clamping positions are arranged on the positioning ring, at least one clamping position is arranged on the position between 90 degrees and 180 degrees of the positioning ring, chamfers are arranged on the upper edges of the clamping positions on the positioning ring, and metal sheets which are attached to the inner surface of the clamping position are fixedly connected on the clamping positions; the rotating ring is rotatably sleeved on the positioning ring; the bracket can be fixedly connected to the rotating ring in a rotating way along with the rotating ring; the clamping rod is connected to the bracket in a sliding manner in a manner of moving up and down, and the front end of the clamping rod can extend into the clamping position; the spring is arranged in the bracket and used for pushing the front end of the clamping rod to extend into the clamping position; the button is connected to the support in a sliding mode and connected with the rear end of the clamping rod, and when the button is pressed to move towards the inside of the support, the button can push the front end of the clamping rod to exit to the outside of the clamping position.

Furthermore, one of the blocking positions is arranged on the position between 130 degrees and 160 degrees of the positioning ring.

Furthermore, the rear end of the clamping rod is fixedly connected to the button, and one end of the spring abuts against the rear end of the clamping rod or the bottom surface of the button.

Further, the rear end of kelly and button are located the upper portion and the lower part of support respectively, still be equipped with the connecting rod between kelly and the button, the upper and lower end of this connecting rod is connected with the rear end and the button of kelly respectively, and when this button pressurized moved towards the inside of support, the front end of connecting rod pulling kelly withdrawed from to the outside of screens.

Furthermore, one end of the spring props against the rear end of the clamping rod, strip-shaped grooves arranged in the vertical direction are formed in the button, the upper end of the connecting rod is fixedly connected with the rear end of the clamping rod, the lower end of the connecting rod is inserted into the grooves in a matched mode, and when the front end of the clamping rod extends into the clamping position, the lower end of the connecting rod is close to or contacts the tops of the grooves.

Further, still including telescopic link, latch device and the connecting rod that has the second handle, the telescopic link can reciprocate ground sliding connection on the support, latch device fixed connection is on the support, button and this latch device are located the upper portion and the lower part of support respectively, the connecting rod is located between button and the latch device and the upper and lower end of this connecting rod is close or contact with the bottom surface of button and latch device's top surface respectively, be provided with two at least hole sites on the telescopic link, latch device's front end can stretch into in this hole site.

Further, still including telescopic link and the latch device that has the second handle, the telescopic link can reciprocate ground sliding connection on the support, latch device fixed connection is on the support and this latch device's top surface is close or the contact with the bottom surface of button, be provided with two at least hole sites on the telescopic link, latch device's front end can stretch into in this hole site.

The invention has the beneficial effects that: according to the invention, the positioning ring is fixed on the handle, the rotating ring is sleeved on the positioning ring, and the clamping rod enters and exits from the clamping position, so that the support can be fixed on different rotating angles, and the clamping rod is controlled by adopting the button independently arranged on the support, so that the problem that the error adjustment is easy to occur because the support and the pull rod share one button in the prior art is solved; in addition, the design of the clamping rod and the clamping position is adopted in the scheme, and compared with the prior art of positioning by adopting a button on a handle, the hand feeling of pressing by fingers does not need to be considered, so that the clamping rod and the clamping position can be designed to be smaller, more clamping positions can be arranged conveniently, the support can be positioned at angles except for special angles of 90 degrees or 180 degrees, and the application is further expanded on the function; in addition, if the box is accidentally knocked down backwards, the bracket can be forced to rotate upwards to a position of about 180 degrees due to the fact that the chamfer is arranged on the upper edge of the clamping position, the bracket is prevented from being damaged, and the protection effect is achieved.

Drawings

FIG. 1 is a schematic front view of the internal structure of one embodiment of the handle and bracket of the present invention;

FIG. 2 is a perspective view of the internal structure of another embodiment of the handle and bracket of the present invention;

FIG. 3 is an enlarged schematic view at A of FIG. 2;

FIG. 4 is a partially exploded perspective view of the handle of the present invention;

FIG. 5 is a schematic front view of the detent lever, the rotary ring and the detent ring of the present invention, and a schematic front view of an embodiment of the detent ring;

FIG. 6 is a schematic perspective view of another embodiment of a cage of the present invention;

FIG. 7 is a perspective view of the latch of the present invention;

FIG. 8 is a schematic view of one use of the present invention;

fig. 9 is a schematic view of another state of use of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1 to 9, a trolley case with a dumping protection function includes a case body 1 with casters, a telescopic trolley 3 disposed on the case body 1 and having a handle 2, wherein the handle 2 includes a handle main body 21 and a mounting seat 22, two sides of the handle main body 21 extend to form a mandrel section 211, the mandrel section 211 is inserted into the mounting seat, the trolley case further includes a positioning ring 4 fixedly sleeved on the mandrel section 211 and clamped between the handle main body 21 and the mounting seat 22, at least two detents 41 are disposed on the positioning ring 4, at least one detent 41 is disposed at a position between 90 ° and 180 ° of the positioning ring 4, and chamfers are disposed on upper edges of the detents 41 at the position, and a metal sheet 43 attached to an inner surface of the detent 41 is fixedly connected to the detent 41; the rotating ring 5 is rotatably sleeved on the positioning ring 4; the bracket 6 can be fixedly connected to the rotating ring 5 in a rotating way along with the rotating ring 5; the clamping rod 7 is connected to the bracket 5 in a sliding manner in a way of moving up and down, and the front end of the clamping rod can extend into the clamping position 41; the spring 8 is arranged in the bracket 6 and used for pushing the front end of the clamping rod 7 to extend into the clamping position 41; and the button 9 is slidably connected on the bracket 5 and is connected with the rear end of the clamping rod 7, and when the button 9 is pressed to move towards the inner part of the bracket 6, the button can push the front end of the clamping rod 7 to withdraw out of the clamping position 41. The bracket 6 in the invention takes one end close to the handle 2 as the upper part and takes one end far away from the handle 2 as the lower part; 3 or 4 castors are arranged on the box body 1, so that the box body 1 can move in an upright mode; in addition, the mandrel section 211 is adopted to fix the locating ring 4, the locating ring 4 is convenient to mount in production due to the structure, and the metal sheet 43 arranged on the clamping position 41 is beneficial to improving the wear-resistant degree of the clamping position 41 and cannot be easily crushed by the clamping rod 7.

The connection form of the button 9 and the rear end of the clamping rod 7 has multiple forms, and the first specific embodiment is as follows: the rear end of the clamping rod 7 is fixedly connected to the button 9, and one end of the spring 8 props against the rear end of the clamping rod 7 or the bottom surface of the button 9. The fixed connection between the clamping rod 7 and the button 9 mainly fixes the clamping rod 7 and the button 9 in the up-and-down direction, and ensures that the clamping rod 7 and the button 9 can synchronously move up and down. Since the rear end of the latch lever 7 or the button 9 is fixedly connected, the spring 8 pushes the latch lever 7 into the detent 41. The second embodiment is as follows: referring to fig. 1, the rear end of the latch 7 is close to or in contact with the bottom surface of the button 9, and one end of the spring 8 abuts against the rear end of the latch 7. Here, close refers to a small gap between the two, while contact refers to where the surfaces of the two have been touched. The same is true of the proximity or contact mentioned below. The catch lever 7 and the push button 9 are not fixed together, so that the spring 8 can only push the catch lever 7 into the detent 41 against the rear end thereof, and the rear end of the catch lever 7 also pushes the push button 9 to move upward.

For better manual operation of the button 9, the button 9 may be disposed at a lower portion of the bracket 6, in the first embodiment: referring to fig. 2, the rear end of the jamming rod 7 and the button 9 are respectively located at the upper part and the lower part of the bracket 6, a connecting rod 12 is further arranged between the jamming rod 7 and the button 9, the upper end and the lower end of the connecting rod 12 are respectively connected with the rear end of the jamming rod 7 and the button 9, and when the button 9 is pressed to move towards the inside of the bracket 6, the connecting rod 12 pulls the front end of the jamming rod 7 to exit to the outside of the jamming 41. The button 9 is arranged at the lower part of the bracket 6, and when the button 9 is pressed by hands, the bracket 6 can be conveniently and directly pulled to rotate, so that the use habit of people is met; in addition, the upper end and the lower end of the connecting rod 12 can be fixedly connected with the rear end of the clamping rod 7 and the button 9 respectively, for example, the connecting rod 12 can be connected with the clamping rod 7 or the button 9 in a threaded manner or an adhesive manner, and even the connecting rod 12 and the clamping rod 7 or the button 9 can be of an integrated structure. Furthermore, one end of the spring 8 props against the rear end of the clamping rod 7, strip-shaped grooves arranged in the vertical direction are formed in the button 9, the upper end of the connecting rod 12 is fixedly connected with the rear end of the clamping rod 7, the lower end of the connecting rod 12 is inserted into the grooves in a matched mode, and when the front end of the clamping rod 7 extends into the clamping position 41, the lower end of the connecting rod 12 is close to or contacts the tops of the grooves. The improvement is mainly designed aiming at adding the clamping device 11 on the bracket 6. In addition, the support 6 can also be made into a telescopic structure to meet the requirements of different occasions, and specifically comprises the following steps: referring to fig. 2, an expansion link 10 and a latch 11 with a second handle are added to the bracket 6, the latch 11 on the left side in fig. 2 is not shown, the expansion link 10 is slidably connected to the bracket 6 in a vertically movable manner, the latch 11 is fixedly connected to the bracket 6, the top surface of the latch 11 is close to or in contact with the bottom surface of the button 9, at least two hole sites are arranged on the expansion link 10, and the front end of the latch 11 can extend into the hole sites. Clamping device 11 in this scheme is prior art, refer to fig. 7, and when pressing its top surface, that is, the top surface of clamp plate 111, this clamp plate 111 will move towards the main part is inside, pushes its shaft-like front end and retracts towards the main part is inside, loosens back clamp plate 111 and the front end will reset. The number of the holes on the telescopic rod 10 is generally 2, 3 or 4, and the more the holes, the more the number of the stages of the telescopic rod 10 which can adjust the extension length. In combination with the design that the lower end of the connecting rod 12 is matched and inserted in the groove of the button 9, when in use: after pressing button 9, the front end of kelly 7 and latch 11 exit from the outside to screens 41 and hole site respectively, pulling support 6 rotates this moment, can stimulate the second handle simultaneously and make telescopic link 10 extend, after the finger loosens button 9, when telescopic link 10 extends next hole site and latch 11's front end and aligns, this latch 11's front end can stretch into automatically and block telescopic link 10 in this hole site fixedly, button 9 is by clamp plate 111 jack-up simultaneously, because the existence of recess, can not cause the influence to connecting rod 12 during button 9 rebound this moment, the lower extreme of connecting rod 12 is close or contacts the bottom surface of recess, when support 6 rotated next screens 41, under the effect of spring 8, the front end of kelly 7 gets into this screens 41 and blocks tightly, the lower extreme of connecting rod 12 this moment is close or contacts the top surface of recess. Of course, the bracket 6 can be rotated to make the front end of the rod 7 enter the position fastener 41, and then the rod 10 is pulled to extend to a suitable length, similar to the previous opening method.

The button 9 may be disposed on the upper portion of the bracket 6, in addition to the lower portion of the bracket 6, and the second embodiment: referring to fig. 1, the button 9 is located at the upper portion of the bracket 6, and further includes an expansion link 10 with a second handle, a latch 11 and a connecting rod 12, the expansion link 10 is slidably connected to the bracket 6 in a vertically movable manner, the latch 11 is fixedly connected to the lower portion of the bracket 6, the connecting rod 12 is located between the button 9 and the latch 11, the upper end and the lower end of the connecting rod 12 are respectively close to or in contact with the bottom surface of the button 9 and the top surface of the latch 11, the expansion link 10 is provided with at least two hole sites, and the front end of the latch 11 can extend into the hole sites. Here, the latch 11 and the hole site are the same as the first embodiment, and the rear end of the latch 7 is close to or in contact with the bottom surface of the button 9; in the design, the rear end of the clamping rod 7 and the upper end of the connecting rod 12 are respectively close to or contact with the bottom surface of the button 9, but the rear end of the clamping rod 7 is not contacted with the connecting rod 12, and the further improvement can be that one end of the spring 8 is pressed against the rear end of the clamping rod 7, so that the actions of the clamping rod 7 and the clamping device 11 cannot be influenced mutually, and the using process is also the same as that of the first embodiment.

In the above-described embodiment, referring to fig. 5, the lock ring 4 has at least one of the detents 41 at a position between 90 ° and 180 °. The division of the angles is such that the bezel 4 is installed on the handle 2 to set 0 ° in a direction toward and perpendicular to the bottom surface of the case 1, to set 90 ° in a direction toward and perpendicular to the back surface of the inside of the case 1, and the other angles are sequentially provided. 1, 2 or 3 blocking positions 41 can be generally arranged between 90 degrees and 180 degrees, when the blocking rod 7 rotates to be blocked with the blocking positions 41 within the angle, the bracket 6 is in a state of inclining upwards towards the back of the box body 1, and referring to fig. 7 and 8, the state is convenient for a user to hold the bracket 6 with a hand and push the box to walk; one of the detents 41 is positioned at 130-160 degrees, and the detent 41 within the angle is more convenient for a user to push the case to move, and is ergonomic. The upper edges of the clamping positions 41 within the angle of 90-180 degrees are all provided with chamfers, and in the angle, under the condition that the button 9 is not pressed, namely the front end of the clamping rod 7 is still inside the clamping position 41, when the bracket 6 is pulled to rotate upwards by force, the component force of the chamfers can gradually push the front end of the clamping rod 7 to exit to the outside of the clamping position 41; in the practical use, if the case is fallen down backward by accident, support 6 can be up rotated to the position about 180 on, avoids support 6 to damage, plays the effect of protection. In addition, if the position-limiting stop 41 is provided within 0 ° to 90 °, the bracket 6 is not used much when opened, and therefore the position-limiting stop 41 is not provided within this angle.

The invention can be dragged to move like a common draw-bar box and can also be vertically pushed to move. If the box is pushed to move and the box contains a small amount of articles, the pull rod 3 can be lengthened for a certain length, the bracket 6 is rotated to a proper angle in an inclined direction, and the second handle can be held by hand to push and move at the moment with reference to fig. 7; if the box is filled with heavy objects, the pull rod 3 is retracted in the box body 1, the bracket 6 is kept at a proper angle in an inclined direction, the telescopic rod 10 is extended to a proper length according to personal needs, and the push rod can move at the moment with reference to fig. 8; compared with the former pushing mode, the bracket 6 of the latter mode has lower action point on the box and is not easy to tilt forwards when pushed, so the box is suitable for being used under the condition of heavy load. In both modes of use, the weight of the second handle will press on the second handle when the second handle is held by hand, so that the bracket 6 will not rotate upwards.

It should be noted that the above embodiments refer to examples of certain mechanisms or components, and since some of the mechanisms or components have relative independence and completeness in structure or function, the various embodiments of the mechanisms or components can be interchanged to form new embodiments without contradiction, and all such simple modifications are intended to achieve the purpose of the invention by substantially the same means and fall within the scope of the invention.

Claims

1. The utility model provides a possesses draw-bar box of empting protect function, is including the box that has the truckle, set up on the box and have the retractable pull rod of handle, its characterized in that the handle includes handle main part and mount pad, the both sides of handle main part are extended there is the dabber section, and this dabber section is inserted into the mount pad, still includes:

the positioning ring is fixedly sleeved on the mandrel section and clamped between the handle main body and the mounting seat, at least two clamping positions are arranged on the positioning ring, at least one clamping position is arranged at a position between 90 degrees and 180 degrees of the positioning ring, chamfers are arranged on the upper edges of the clamping positions at the position, and metal sheets attached to the inner surface of the clamping positions are fixedly connected to the clamping positions;

the rotating ring is rotatably sleeved on the positioning ring;

the bracket can be fixedly connected to the rotating ring in a rotating way along with the rotating ring;

the clamping rod is connected to the bracket in a sliding manner in a manner of moving up and down, and the front end of the clamping rod can extend into the clamping position;

the spring is arranged in the bracket and used for pushing the front end of the clamping rod to extend into the clamping position;

the button is connected to the bracket in a sliding mode and is connected with the rear end of the clamping rod, and when the button is pressed to move towards the inside of the bracket, the button can push the front end of the clamping rod to exit to the outside of the clamping position;

one of the screens is arranged at the position between 130 degrees and 160 degrees of the positioning ring;

the rear end of the clamping rod is fixedly connected to the button, and one end of the spring props against the rear end of the clamping rod or the bottom surface of the button;

still including telescopic link, latch device and the connecting rod that has the second handle, the telescopic link is sliding connection on the support with reciprocating, latch device fixed connection is on the support, button and this latch device are located the upper portion and the lower part of support respectively, the connecting rod is located between button and the latch device and the upper and lower end of this connecting rod is close or the contact with the bottom surface of button and latch device's top surface respectively, be provided with two at least hole sites on the telescopic link, latch device's front end can stretch into in this hole site.