CN211223238U

CN211223238U - Telescopic trunk

Info

Publication number: CN211223238U
Application number: CN201921616396.7U
Authority: CN
Inventors: 张悦恒
Original assignee: Beijing Children Chuangke Education Technology Co ltd
Current assignee: Beijing Children Chuangke Education Technology Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-08-11
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a flexible trunk, include: the fixed frame is fixedly arranged at an opening of the trunk body, an annular hollow cavity is formed inside the fixed frame, and an annular through hole distributed along the outline of the fixed frame is formed in the end surface of the outer side of the fixed frame; the first end of the movable frame is inserted into the annular through hole, the second end of the movable frame is hinged with a trunk cover, a plurality of sleeves are fixed on the end face of the first end, and threads are arranged on the inner walls of the sleeves; the plurality of screw rods are rotatably arranged at the bottom of the annular hollow cavity; bead and spout, bead setting are at the movable frame surface, and the position that fixed frame corresponds is provided with the spout, and the interval is provided with a plurality of blind holes on the bead, and a plurality of blind hole bottoms are fixed with the flexible pole, and the free end of flexible pole articulates there is the spin, and spout bottom interval is provided with a plurality of recesses, and the spin is contradicted with the recess under the spring action of flexible pole. The utility model discloses can be when needs, increase the volume of trunk.

Description

Telescopic trunk

Technical Field

The utility model relates to the technical field of automobiles. More specifically, the utility model relates to a flexible trunk.

Background

The shape and volume of the trunk of the automobile are determined when the automobile leaves the factory. When a user uses the automobile, the situation that the trunk lid cannot be closed due to too many articles or strange shapes of the articles often occurs. In order to deal with the situations, some users choose not to close the trunk cover, and some users choose to simply connect the trunk cover with the vehicle body through a rope, and the handling methods are easy to cause the falling of articles to cause traffic accidents. Therefore, it is desirable to design a trunk that overcomes the above-mentioned drawbacks to some extent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible trunk, it can be when needs, increases the volume of trunk.

In order to achieve these objects and other advantages in accordance with the purpose of the invention, a retractable trunk is provided, which includes a trunk body, and further includes:

the shape of the fixed frame is matched with that of the opening of the trunk body, the fixed frame is fixedly arranged at the opening of the trunk body, an annular hollow cavity is formed inside the fixed frame, an annular through hole distributed along the outline of the fixed frame is formed in the end face of the outer side of the fixed frame, and the annular through hole is communicated with the annular hollow cavity;

a first end of the movable frame is inserted into the annular through hole and is arranged in a manner of sliding along the hollow cavity, a second end of the movable frame is hinged with a trunk cover, a plurality of sleeves are fixed on the end surface of the first end, and threads are arranged on the inner walls of the plurality of sleeves;

the screw rods are rotatably arranged at the bottom of the annular hollow cavity, correspond to the sleeves in position and are respectively matched with the sleeves;

bead and spout, the bead along movable frame's length direction sets up the movable frame surface, the position that fixed frame corresponds is provided with the spout, the bead with the shape of spout matches, the interval is provided with a plurality of blind holes on the bead, a plurality of blind holes bottoms are fixed with the flexible pole, the free end of flexible pole is articulated to have the spin, spout bottom interval is provided with a plurality of recesses, and with the position of a plurality of blind holes corresponds, the spin be in under the spring action of flexible pole with the recess is contradicted.

Preferably, the telescopic trunk is characterized in that a mounting hole is formed in the end face of the inner side of the fixed frame, the mounting hole is communicated with the annular hollow cavity, a motor is arranged at the position of the mounting hole, and a driving shaft of the motor extends into the mounting hole and is connected with the screw rod.

Preferably, the telescopic trunk, the fixed frame and the movable frame all have four frames, the number of the screw rods is four, and the four frames respectively correspond to the four frames of the fixed frame, the number of the sliding grooves is eight, each frame of the fixed frame is provided with two sliding grooves, and the two sliding grooves are respectively arranged on two sides of the corresponding screw rod.

Preferably, in the telescopic trunk, the second end surface of the movable frame extends towards two sides to form a shielding part for shielding the annular through hole.

Preferably, the groove of the telescopic trunk is spherical, and the radius of the ball where the groove is located is equal to that of the rolling ball.

Preferably, in the telescopic trunk, the groove and the surrounding non-groove region form a streamline transition section.

The utility model discloses at least, include following beneficial effect:

the utility model discloses a realize the volumetric change of trunk through simple structure, it is less to the transformation range of current trunk, probably obtain through the current trunk of direct transformation. The utility model discloses install fixed frame in the opening part of trunk body to make movable frame and fixed frame sliding connection, the trunk lid then sets up and movable frame department, when needs enlarge the trunk volume, makes movable frame stretch out, then the trunk lid also can normally close. The utility model limits the circumferential movement of the movable frame through the bead-chute structure, and limits the axial movement of the movable frame through the elastic rod-rolling ball-groove structure, thereby reducing the stress of the lead screw, reducing the abrasion of the lead screw and further playing the role of stabilizing the movable frame.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the ball, the groove and the elastic rod of the present invention;

FIG. 3 is a cross-sectional view of the movable frame of the present invention;

fig. 4 is a schematic structural view of the sliding groove and the rib of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1-4, the utility model provides a flexible trunk, it includes trunk body 1, still includes:

the shape of the fixed frame 3 is matched with that of the opening of the trunk body 1, the fixed frame is fixedly arranged at the opening of the trunk body 1, an annular hollow chamber is formed inside the fixed frame 3, an annular through hole distributed along the outline of the fixed frame 3 is formed in the end face of the outer side of the fixed frame 3, and the annular through hole is communicated with the annular hollow chamber;

a first end of the movable frame 4 is inserted into the annular through hole and is arranged in a manner of sliding along the hollow cavity, a second end of the movable frame 4 is hinged with the trunk lid 2, a plurality of sleeves 42 are fixed on the end surface of the first end, and threads are arranged on the inner walls of the plurality of sleeves 42;

the plurality of screw rods 32 are rotatably arranged at the bottom of the annular hollow chamber, the positions of the plurality of screw rods 32 correspond to the positions of the plurality of sleeves 42, and the screw rods 32 are respectively matched with the plurality of sleeves 42;

bead 41 and spout 31, bead 41 along the length direction of movable frame 4 sets up movable frame 4 surface, the position that fixed frame 3 corresponds is provided with spout 31, bead 41 with spout 31's shape matches, the interval is provided with a plurality of blind holes on bead 41, a plurality of blind hole bottoms are fixed with flexible pole 43, the free end of flexible pole 43 articulates there is spin 44, spout 31 bottom interval is provided with a plurality of recesses 33, and with the position of a plurality of blind holes corresponds, spin 44 be in under the spring action of flexible pole 43 with recess 33 contradicts.

In the above technical solution, the trunk body 1 refers to a trunk body 1 of an existing common automobile, and is located at the rear of an automobile body and has a rearward opening. The fixed frame 3 is matched with the shape of the opening, and is a cylinder body with a rectangular section, and the movable frame 4 is similar to the fixed frame 3 in shape. Fixed frame 3 sets up along the inboard laminating of this open-ended, and fixed frame 3's inside cavity forms annular cavity chamber promptly, and fixed frame 3 terminal surface outwards is provided with the annular through-hole that communicates with annular cavity chamber. The movable frame 4 is inserted into the annular hollow cavity through the annular through hole and is in sliding connection with the fixed frame 3, and the second end of the movable frame 4 is provided with the trunk cover 2. The first end of the movable frame 4 is provided with a sleeve 42 with threads, the bottom of the annular hollow cavity is provided with a screw rod 32, the screw rod 32 and the sleeve 42 form a screw rod nut mechanism, and when the screw rod 32 rotates, the movable frame 4 can be driven to move back and forth, so that the movable frame 4 can extend out and retract. The outer surface of the movable frame 4 is provided with a rib 41, the rib 41 is matched with the sliding slot 31 on the fixed frame 3, so that the rib 41 can slide in the sliding slot 31, and the cross sections of the rib 41 and the sliding slot 31 are preferably arc-shaped. A plurality of blind holes are further arranged in the rib 41 at intervals, an elastic rod 43 and a rolling ball 44 are arranged in the blind holes, the rolling ball 44 can be retracted into the blind holes, a plurality of grooves 33 are arranged in the chute 31 corresponding to the blind holes, the rolling ball 44 is tightly propped in the grooves 33 by the elastic rod 43, and when the movable frame 4 moves, the rolling ball 44 can move among the grooves 33. Here, the structure of the convex rib 41-the sliding groove 31 limits the circumferential movement of the movable frame 4, and the structure of the elastic rod 43-the rolling ball 44-the groove 33 limits the axial movement of the movable frame 4, thereby reducing the stress of the screw rod 32, reducing the abrasion of the screw rod 32 and also playing a role of fixing the movable frame 4. In the initial state, the distance between the movable frame 4 and the bottom of the annular hollow chamber is the minimum, at this time, the movable frame 4 only slightly extends out of the opening of the trunk body 1, and each rolling ball 44 is tightly propped against the corresponding groove 33 by an elastic rod; when the volume of the trunk needs to be increased, the screw rod 32 rotates to push the movable frame 4 out of the annular hollow chamber, each rolling ball 44 rolls from the groove 33 at the initial position into the groove 33 at the final position and is tightly propped by the elastic rod, and the trunk cover 2 can still be closed after articles are placed. Preferably, the screw 32-sleeve 42 structure can push the movable frame 4 out 30-40 cm, i.e. the initial position and the final position of the rolling ball 44 are spaced 30-40 cm apart. The lead screw can be driven by the motor to rotate, the motor can be powered by the vehicle-mounted power supply, and the installation and power supply mode of the motor are the prior art and are not described again. It can be seen that this technical scheme has realized the change to the trunk volume through simple structure, and is less to the transformation range of current trunk, probably obtains through the current trunk of direct transformation to the trunk after flexible still can keep better stability.

In another technical scheme, the telescopic trunk is characterized in that a mounting hole is formed in the end face of the inner side of the fixed frame 3, the mounting hole is communicated with the annular hollow cavity, a motor is arranged at the position of the mounting hole, and a driving shaft of the motor extends into the mounting hole and is connected with the screw rod 32. Here, a motor is provided which extends into the mounting hole to drive the screw 32 to rotate, and the power supply of the motor can be taken from the vehicle power supply.

In another technical scheme, the telescopic trunk, the fixed frame 3 and the movable frame 4 all have four frames, the number of the screw rods 32 is four, and the four frames correspond to the four frames of the fixed frame 3 respectively, the number of the sliding grooves 31 is eight, each frame of the fixed frame 3 is provided with two sliding grooves 31, and the two sliding grooves 31 are respectively arranged on two sides of the corresponding screw rod 32. Here, a preferable arrangement manner of the screw rod 32 and the sliding groove 31 is provided, two sliding grooves 31 are provided for each frame of the fixed frame 3, and the screw rod 32 is located between the two sliding grooves 31, so that the offset of the screw rod 32 can be well reduced, the abrasion of the screw rod 32 can be reduced, and the stability of the movable frame 4 can be enhanced.

In another technical scheme, in the telescopic trunk, the second end face of the movable frame 4 extends towards two sides to form a shielding part for shielding the annular through hole. Here, the shielding portion can prevent foreign materials from entering into the gap between the fixed frame 3 and the movable frame 4.

In another technical scheme, in the telescopic trunk, the groove 33 is spherical, and the radius of the ball where the groove 33 is located is equal to the radius of the rolling ball 44. Here, the groove 33 and the rolling ball 44 can be well fitted, the screw rod 32 is better protected, and a stabilizing effect is better achieved.

In another technical scheme, in the telescopic trunk, the groove 33 and the surrounding non-groove 33 area form a streamline transition section. Here, the streamlined transition facilitates rolling of the ball 44 from within the recess 33 to the region other than the recess 33 as the lead screw 32 drives the movable frame 4 to move.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the telescopic trunk of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. Flexible trunk, it includes the trunk body, its characterized in that still includes:

2. The telescopic trunk of claim 1, wherein the inner end surface of the fixed frame is provided with a mounting hole, the mounting hole is communicated with the annular hollow chamber, a motor is arranged at the mounting hole, and a driving shaft of the motor extends into the mounting hole to be connected with the screw rod.

3. The telescopic trunk according to claim 1, wherein the fixed frame and the movable frame each have four rims, the number of the lead screws is four, and the lead screws correspond to the positions of the four rims of the fixed frame, respectively, and the number of the sliding grooves is eight, and each rim of the fixed frame is provided with two sliding grooves which are respectively disposed at both sides of the corresponding lead screw.

4. The retractable trunk according to claim 1, wherein the second end surface of the movable frame extends to both sides to form a shielding portion that shields the annular through hole.

5. A telescopic trunk according to claim 1, wherein the recess is spherical in shape, the radius of the ball in which the recess is located being equal to the radius of the rolling ball.

6. A telescopic trunk according to claim 5, wherein the recess is formed with a streamlined transition to the surrounding non-recessed region.