CN109132150B

CN109132150B - Portable tableware bag

Info

Publication number: CN109132150B
Application number: CN201810811361.2A
Authority: CN
Inventors: 柴明
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-23
Filing date: 2018-07-23
Publication date: 2020-04-14
Anticipated expiration: 2038-07-23
Also published as: CN109132150A

Abstract

The invention provides a portable tableware bag, which comprises a protection mechanism and an expansion mechanism, wherein the expansion mechanism is arranged in the protection mechanism, the protection mechanism comprises a handle rod, a rotating shaft, an ear plate, a locking bolt, a cavity, a connecting plate, a piston strip, a protective sleeve plate, a connecting pipe, an airbag sleeve and a convex block, the expansion mechanism comprises a cleaning brush, a rear cover plate, a sealing ring, a limiting groove, a rear containing box, a front containing box, a placing groove, a magnet sheet, a partition plate, a front cover plate, a fastening bolt, a sliding groove and a sliding strip, and compared with the prior art, the portable tableware bag has the following beneficial effects: the clamping and fixing function is realized, the carrying is convenient, the expanded function is realized, the cleaning is convenient, and the using effect is improved.

Description

Portable tableware bag

Technical Field

The invention relates to a portable tableware bag, and belongs to the field of tableware accessory equipment.

Background

The current portable tableware package is not convenient for wash the tableware, also can't use on the flat board, and the result of use is poor, and current portable tableware package can't fasten the tableware fixedly, causes dropping of tableware easily, and service function nature is poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a portable tableware bag to solve the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a portable tableware package, includes protection machanism and extension mechanism, extension mechanism sets up inside protection machanism, protection machanism includes handle bar, pivot, otic placode, locking bolt, cavity, connecting plate, piston strip, protection sheathing board, connecting pipe, gasbag cover and lug, extension mechanism holds case, preceding case, standing groove, magnet piece, baffle, front shroud, fastening bolt, spout and draw runner including cleaning brush, back shroud, sealing washer, spacing groove, back.

Furthermore, in the protection mechanism, rotating shafts are fixed on the left lower part and the right lower part of the handle rod, the rotating shaft is connected with the inner upper part of the connecting plate through a bearing, the handle rod is arranged at the upper end of the connecting plate, the ear plates are fixed at the left edge and the right edge of the upper end surface of the protective sleeve plate, the locking bolt is arranged on the ear plates through threads, the inner end face of the locking bolt is contacted with the left end and the right end of the connecting plate, the cavity is arranged in the protective sleeve plate, the piston strip is fixed on the lower end surface of the connecting plate, the connecting plate and the piston strip are both arranged in the cavity, the piston bar is contacted with the inner wall of the cavity, the lower edge of the inner end surface of the cavity is connected with a connecting pipe, the inner end of the connecting pipe is connected with the air bag sleeve, the air bag sleeve is arranged inside the protective sleeve plate and is arranged on the inner side of the cavity, and the convex blocks are uniformly fixed on the inner end face of the air bag sleeve.

Further, handle bar annular side cover is equipped with the rubber sleeve, connecting plate upper end processing has the open slot, and is provided with handle bar and pivot on the open slot, and when in actual use, the user rotates locking bolt, then locking bolt rotates and along otic placode inward movement under the effect of screw thread to the realization is pushed up tightly the connecting plate, then the user holds handle bar and carries this device, also be convenient for two people simultaneously hold two handle bars respectively and carry, thereby expanded application range

Furthermore, the convex blocks are provided with at least two, the at least two convex blocks are uniformly fixed on the inner end surface of the air bag sleeve, and the at least two convex blocks are of hemispherical structures, in actual use, a user moves the connecting plate downwards, the connecting plate moves downwards to drive the piston strip to move downwards along the cavity, so that air in the cavity is pressurized, then the air in the cavity enters the air bag sleeve through the connecting pipe, then the air bag sleeve is inflated to start to expand, so as to wrap the rear containing box and the front containing box, then the lug tightly pushes the rear containing box and the front containing box to fix the rear containing box and the front containing box, then the user rotates locking bolt once more to fix once more to the connecting plate, and then keep the inside atmospheric pressure intensity of gasbag cover, improve the centre gripping effect, gasbag cover has the shock attenuation function of protection under the effect of air moreover.

Further, in the extension mechanism, the lower end of the rear containing box is connected with the front containing box through a hinge, the front containing box is arranged on the front end face of the rear containing box, the rear end of the rear cover plate is connected with the rear containing box through a hinge, the rear cover plate is arranged on the upper end of the rear containing box, the front end of the front cover plate is connected with the front containing box through a hinge, the front cover plate is arranged on the upper end of the front containing box, the cleaning brush is arranged in the upper end face of the rear cover plate, a sealing ring is arranged between the rear cover plate and the rear containing box and embedded in the lower end face of the rear cover plate, the fastening bolt is arranged at the rear position of the upper end face of the rear cover plate through a round hole, the lower end of the fastening bolt penetrates through the rear cover plate and is contacted with the upper end of the rear containing box through a thread, the fastening bolt is contacted with the front edge, the draw runner is fixed at preceding baffle left end face, the spout is seted up at baffle right-hand member face, the baffle holds the case through draw runner and spout and preceding and is connected, the front shroud sets up at the baffle upside, the standing groove is seted up inside the baffle, the magnet piece is fixed on the standing groove inner wall, the spacing groove is seted up respectively and is held before the case terminal surface and hold the case rear end face after and in the front.

Furthermore, a sliding groove is formed in the left wall of the front containing box, a sliding strip is arranged in the sliding groove, a sliding strip is fixed on the right wall of the front containing box, the sliding strip is arranged in the sliding groove, three partition plates are arranged in the front containing box at equal intervals, when the tableware is actually used, a user fixes the fastening bolt, then the fastening bolt rotates and moves upwards under the action of threads, the fastening bolt moves upwards to be separated from the front cover plate, then the user can rotate the front cover plate around the central axis of the hinge to open the upper end of the front containing box, meanwhile, the user rotates the fastening bolt reversely to compress the rear cover plate, sealing between the rear cover plate and the rear containing box is realized, then the user takes the three partition plates out of the front containing box, and then takes out the metal tableware for use, the magnet piece can be fixed to metal tableware magnetism is inhaled simultaneously, then connects three baffle each other through draw runner and spout to the realization makes up the baffle, is convenient for use the baffle, thereby has enlarged usable floor area.

Further, back shroud upper end processing recess, and be provided with the cleaning brush on the recess, use the completion back at the tableware, the user rotates fastening bolt, thereby hold the case looks separation with rear shroud and back respectively with fastening bolt, then the user takes out the cleaning brush from the recess, and use the cleaning brush to clean the baffle surface, then the user puts into the back with baffle and metal tableware and holds the incasement, thereby use the back to hold the washing liquid of incasement and wash baffle and metal tableware, realized that automatic cleaning liquid washs the tableware, high durability and convenient use, after using the completion, seal up the back shroud once more, avoid revealing of washing liquid.

Furthermore, positioning bulges are fixed on the inner wall of the limiting groove, two positioning grooves are symmetrically processed on the upper end face of the connecting plate, when the limiting groove is actually used, a user rotates the front containing box and the rear containing box so as to realize that the lower end of the front containing box and the lower end of the rear containing box are contacted with each other, then the user rotates the handle rod around the central axis of the rotating shaft, the handle rod stops rotating after the handle rod rotates for 90 degrees, then the user continues to move the connecting plate downwards, the connecting plate moves downwards so as to drive the handle rod to move downwards, when the handle rod moves downwards to be contacted with the upper end face of the protecting cover plate, the connecting plate stops moving, then the locking bolt is used again to fix the connecting plate, then the user places the front containing box and the rear containing box on the connecting plate so as to realize that the limiting groove is sleeved on the connecting plate and the handle rod, also realize simultaneously that the locating lever inserts in the constant head tank, and then realize holding behind and preceding case of holding and fix a position fixedly, then the user of service places the baffle in the front and holds the case and hold the case upper end behind, has realized the function that the extension was placed, convenient to use.

The invention has the beneficial effects that: according to the portable tableware bag, the handle rod, the rotating shaft, the ear plate, the locking bolt, the cavity, the connecting plate, the piston strip, the protective sleeve plate, the connecting pipe, the air bag sleeve and the bump are added, so that the clamping and fixing functions are realized, and the portable tableware bag is convenient to carry.

According to the invention, by adding the cleaning brush, the rear cover plate, the sealing ring, the limiting groove, the rear containing box, the front containing box, the placing groove, the magnet piece, the partition plate, the front cover plate, the fastening bolt, the sliding groove and the sliding strip, the expanded function is realized, the cleaning is convenient, and the use effect is also improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a portable cutlery bag of the present invention;

FIG. 2 is a schematic front view of a protection mechanism of a portable cutlery bag according to the present invention;

FIG. 3 is a schematic diagram of a right side view of a protection mechanism in a portable cutlery bag according to the present invention;

FIG. 4 is a schematic right-view structural diagram of an expanding mechanism in a portable cutlery bag according to the present invention;

FIG. 5 is a schematic top view of an expansion mechanism of a portable cutlery bag according to the present invention;

in the figure: 1-protection mechanism, 2-expansion mechanism, 101-handle rod, 102-rotating shaft, 103-ear plate, 104-locking bolt, 105-cavity, 106-connecting plate, 107-piston strip, 108-protective sheath plate, 109-connecting pipe, 110-air bag sleeve, 111-lug, 201-cleaning brush, 202-rear cover plate, 203-sealing ring, 204-limiting groove, 205-rear containing box, 206-front containing box, 207-placing groove, 208-magnet sheet, 209-partition plate, 210-front cover plate, 211-fastening bolt, 212-sliding groove and 213-sliding strip.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a portable tableware package, including protection machanism 1 and extension mechanism 2, extension mechanism 2 sets up inside protection machanism 1, protection machanism 1 includes handle bar 101, pivot 102, otic placode 103, locking bolt 104, cavity 105, connecting plate 106, piston strip 107, protection lagging plate 108, connecting pipe 109, gasbag cover 110 and lug 111, extension mechanism 2 includes cleaning brush 201, back shroud 202, sealing washer 203, spacing groove 204, back hold case 205, preceding hold case 206, standing groove 207, magnet piece 208, baffle 209, front shroud 210, fastening bolt 211, spout 212 and draw runner 213.

In the protection mechanism 1, the rotating shafts 102 are fixed on the left lower part and the right lower part of the handle rod 101, the rotating shafts 102 are connected with the inner upper part of the connecting plate 106 through bearings, the handle rod 101 is arranged at the upper end of the connecting plate 106, the ear plates 103 are fixed at the left edge and the right edge of the upper end surface of the protection sleeve plate 108, the locking bolts 104 are arranged on the ear plates 103 through threads, the inner end face of the locking bolt 104 is contacted with the left end and the right end of the connecting plate 106, the cavity 105 is arranged in the protective sleeve plate 108, the piston bar 107 is fixed on the lower end face of the connecting plate 106, the connecting plate 106 and the piston bar 107 are arranged in the cavity 105, and the piston bar 107 contacts with the inner wall of the cavity 105, the lower edge of the inner end surface of the cavity 105 is connected with a connecting pipe 109, the inner end of the connecting pipe 109 is connected with an air bag sleeve 110, the air bag sleeve 110 is arranged inside the protective sleeve plate 108, the airbag cover 110 is arranged inside the cavity 105, and the convex blocks 111 are uniformly fixed on the inner end surface of the airbag cover 110.

In the expanding mechanism 2, the lower end of a rear containing box 205 is connected with a front containing box 206 through a hinge, the front containing box 206 is arranged on the front end surface of the rear containing box 205, the rear end of a rear cover plate 202 is connected with the rear containing box 205 through a hinge, a rear cover plate 202 is arranged on the upper end of the rear containing box 205, the front end of the front cover plate 210 is connected with the front containing box 206 through a hinge, a front cover plate 210 is arranged on the upper end of the front containing box 206, a cleaning brush 201 is arranged inside the upper end surface of the rear cover plate 202, a sealing ring 203 is arranged between the rear cover plate 202 and the rear containing box 205, the sealing ring 203 is embedded on the lower end surface of the rear cover plate 202, a fastening bolt 211 is arranged on the rear position of the upper end surface of the rear cover plate 202 through a circular hole, the lower end of the fastening bolt 211 penetrates through the rear cover plate 202 and is in contact with the upper end of the rear, the draw runner 213 is fixed at baffle 209 left end face, and the spout 212 is seted up at baffle 209 right-hand member face, and baffle 209 is connected with preceding case 206 that holds through draw runner 213 and spout 212, and front shroud 210 sets up in baffle 209 upside, and the standing groove 207 is seted up inside baffle 209, and magnet piece 208 is fixed on the standing groove 207 inner wall, and spacing groove 204 is seted up respectively and holds preceding terminal surface of case 206 and the rear end face of case 205 that holds behind in the front.

As an embodiment of the present invention: handle bar 101 annular side cover is equipped with the rubber sleeve, there is the open slot connecting plate 106 upper end processing, and be provided with handle bar 101 and pivot 102 on the open slot, when in actual use, user rotates locking bolt 104, then locking bolt 104 rotates and inwards moves along otic placode 103 under the effect of screw thread, thereby the realization is pushed up tightly connecting plate 106, then user holds handle bar 101 and carries this device, two people of also being convenient for simultaneously hold two handle bars 101 respectively and carry, thereby application range has been enlarged.

As an embodiment of the present invention: at least two bumps 111 are arranged, the at least two bumps 111 are uniformly fixed on the inner end face of the airbag cover 110, and the at least two bumps 111 are of a hemispherical structure, when the airbag cover is actually used, a user moves the connecting plate 106 downwards, the connecting plate 106 moves downwards to drive the piston strip 107 to move downwards along the cavity 105, so that air inside the cavity 105 is pressurized, then the air inside the cavity 105 enters the airbag cover 110 through the connecting pipe 109, then the airbag cover 110 is inflated to start to expand, so that the rear containing box 205 and the front containing box 206 are wrapped, then the bumps 111 tightly push the rear containing box 205 and the front containing box 206, so that the rear containing box 205 and the front containing box 206 are fixed, then the user rotates the locking bolt 104 again, so that the connecting plate 106 is fixed again, and further the air pressure strength inside the airbag cover 110 is maintained, the clamping effect is improved, and the airbag cover 110 has the function of shock absorption and protection under the action of air.

As an embodiment of the present invention: the left wall in the front containing box 206 is provided with a sliding groove, the sliding strip 213 is arranged in the sliding groove, the sliding strip is fixed on the right wall in the front containing box 206 and is arranged in the sliding groove 212, the three partition plates 209 are arranged in the front containing box 206 at equal intervals, when the tableware washing machine is in actual use, a user fixes the fastening bolt 211, then the fastening bolt 211 rotates and moves upwards under the action of threads, the fastening bolt 211 moves upwards to be separated from the front cover plate 210, then the user can rotate the front cover plate 210 around the central axis of the hinge, so that the upper end of the front containing box 206 is opened, meanwhile, the user rotates the fastening bolt 211 reversely, so that the rear cover plate 202 is pressed, the sealing between the rear cover plate 202 and the rear containing box 205 is realized, then the user takes the three partition plates 209 out of the front containing box 206, and then takes out the metal tableware for use from the inside of the placing groove 207, magnet piece 208 can carry out magnetism to the metal tableware simultaneously and inhale fixedly, then connects each other three baffle 209 through draw runner 213 and spout 212 to the realization makes up baffle 209, is convenient for use baffle 209, thereby has enlarged usable floor area.

As an embodiment of the present invention: rear cover plate 202 upper end processing is fluted, and be provided with cleaning brush 201 on the recess, use the back at the tableware completion, the user rotates fastening bolt 211, thereby hold case 205 phase separation with rear cover plate 202 and back respectively with fastening bolt 211, then the user takes out cleaning brush 201 from the recess, and use cleaning brush 201 to clean baffle 209 surface, then the user puts into the back with baffle 209 and metal tableware and holds the case 205 in, thereby the washing liquid that holds in the case 205 after using washs baffle 209 and metal tableware, automatic washing liquid has been realized and has washd the tableware, high durability and convenient use, after using the completion, seal up rear cover plate 202 once more, avoid revealing of washing liquid.

As an embodiment of the present invention: the inner wall of the limiting groove 204 is fixed with a positioning bulge, the upper end surface of the connecting plate 106 is symmetrically processed with two positioning grooves, when in actual use, a user rotates the front containing box 206 and the rear containing box 205, so that the lower end of the front containing box 206 and the lower end of the rear containing box 205 are contacted with each other, then the user rotates the handle rod 101 around the central axis of the rotating shaft 102, after the handle rod 101 rotates 90 degrees, the rotation of the handle rod 101 is stopped, then the user continues to move the connecting plate 106 downwards, the connecting plate 106 moves downwards to drive the handle rod 101 to move downwards, when the handle rod 101 moves downwards to be contacted with the upper end surface of the protective sleeve 108, the connecting plate 106 is stopped, then the connecting plate 106 is fixed by using the locking bolt 104 again, then the user places the front containing box 206 and the rear containing box 205 on the upper end of the connecting plate 106, so that the limiting groove 204 is sleeved on the connecting plate 106 and the handle rod 101, also realize simultaneously that the locating lever inserts in the constant head tank, and then realize holding case 205 and preceding case 206 and fix a position fixedly after to, then user of service places baffle 209 and holds case 206 and hold the case 205 upper end after in the front, has realized the function that the extension was placed, convenient to use.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a portable tableware package, includes protection machanism and extension mechanism, its characterized in that: the expansion mechanism is arranged in the protection mechanism, the protection mechanism comprises a handle rod, a rotating shaft, an ear plate, a locking bolt, a cavity, a connecting plate, a piston strip, a protective sleeve plate, a connecting pipe, an airbag sleeve and a bump, and the expansion mechanism comprises a cleaning brush, a rear cover plate, a sealing ring, a limiting groove, a rear containing box, a front containing box, a placing groove, a magnet piece, a partition plate, a front cover plate, a fastening bolt, a sliding groove and a sliding strip;

in the protection mechanism, rotating shafts are fixed at the left lower part and the right lower part of the handle rod and are connected with the inner upper part of the connecting plate through bearings, the handle rod is arranged at the upper end of the connecting plate, the ear plates are fixed at the left edge and the right edge of the upper end surface of the protective sleeve plate, the locking bolt is arranged on the ear plates through threads, the inner end face of the locking bolt is contacted with the left end and the right end of the connecting plate, the cavity is arranged in the protective sleeve plate, the piston strip is fixed on the lower end surface of the connecting plate, the connecting plate and the piston strip are both arranged in the cavity, the piston bar is contacted with the inner wall of the cavity, the lower edge of the inner end surface of the cavity is connected with a connecting pipe, the inner end of the connecting pipe is connected with the air bag sleeve, the air bag sleeve is arranged inside the protective sleeve plate and is arranged inside the cavity, and the convex blocks are uniformly fixed on the inner end surface of the air bag sleeve;

in the expanding mechanism, the lower end of the rear containing box is connected with the front containing box through a hinge, the front containing box is arranged on the front end surface of the rear containing box, the rear end of the rear cover plate is connected with the rear containing box through a hinge, the rear cover plate is arranged on the upper end of the rear containing box, the front end of the front cover plate is connected with the front containing box through a hinge, the front cover plate is arranged on the upper end of the front containing box, the cleaning brush is arranged inside the upper end surface of the rear cover plate, a sealing ring is arranged between the rear cover plate and the rear containing box and embedded on the lower end surface of the rear cover plate, the fastening bolt is arranged on the rear position of the upper end surface of the rear cover plate through a round hole, the lower end of the fastening bolt penetrates through the rear cover plate and is contacted with the upper end of the rear containing box through a thread, the fastening bolt is contacted with the front edge position of the upper end surface, the baffle is seted up at the baffle right-hand member face to the spout, the baffle holds the case through draw runner and spout and is connected with preceding, the front shroud sets up at the baffle upside, the standing groove is seted up inside the baffle, the magnet piece is fixed on the standing groove inner wall, the spacing groove is seted up respectively and is held the case preceding terminal surface and hold the case rear end face after in the front.

2. The portable cutlery bag of claim 1, wherein: handle pole annular side cover is equipped with the rubber sleeve, the processing of connecting plate upper end has the open slot, and is provided with handle pole and pivot on the open slot, and when in actual use, the user rotates locking bolt, then locking bolt rotates and along otic placode inward movement under the effect of screw thread to the realization is pushed up tightly the connecting plate, then the user holds the handle pole and carries this device, and two people of also being convenient for simultaneously hold two handle poles respectively and carry, thereby has enlarged application range.

3. The portable cutlery bag of claim 1, wherein: the convex blocks are at least two, the at least two convex blocks are uniformly fixed on the inner end surface of the air bag sleeve, and the at least two convex blocks are of a hemispherical structure, in practical use, a user moves the connecting plate downwards, the connecting plate moves downwards to drive the piston strip to move downwards along the cavity, so that air in the cavity is pressurized, then the air in the cavity enters the air bag sleeve through the connecting pipe, then the air bag sleeve is inflated to start to expand, so as to wrap the rear containing box and the front containing box, then the lug tightly pushes the rear containing box and the front containing box to fix the rear containing box and the front containing box, then the user rotates locking bolt once more to fix once more to the connecting plate, and then keep the inside atmospheric pressure intensity of gasbag cover, improve the centre gripping effect, gasbag cover has the shock attenuation function of protection under the effect of air moreover.

4. The portable cutlery bag of claim 1, wherein: the front containing box is characterized in that a sliding groove is formed in the left wall of the front containing box, a sliding strip is arranged in the sliding groove, a sliding strip is fixed on the right wall of the front containing box, the sliding strips are arranged in the sliding groove, three partition plates are arranged in the front containing box at equal intervals, when the front containing box is in actual use, a user fixes a fastening bolt, then the fastening bolt rotates and moves upwards under the action of threads, the fastening bolt moves upwards to be separated from a front cover plate, then the user can rotate the front cover plate around the central axis of a hinge to open the upper end of the front containing box, and simultaneously the user rotates the fastening bolt reversely to compress a rear cover plate, so that the rear cover plate and the rear containing box are sealed, then the user takes the three partition plates out of the front containing box and takes out metal tableware for use, the magnet piece can be fixed to metal tableware magnetism is inhaled simultaneously, then connects three baffle each other through draw runner and spout to the realization makes up the baffle, is convenient for use the baffle, thereby has enlarged usable floor area.

5. The portable cutlery bag of claim 1, wherein: the utility model discloses a tableware cleaning brush, including back shroud, back shroud upper end processing recess, be provided with the cleaning brush on the recess, use the back at the tableware use completion, the user rotates fastening bolt, thereby hold the case looks separation with back shroud and back respectively with fastening bolt, then the user takes out the cleaning brush from the recess, and use the cleaning brush to clean the baffle surface, then the user holds the incasement with baffle and metal tableware after putting into, thereby use the washing liquid that holds the incasement after and wash baffle and metal tableware, realized that automatic cleaning liquid washs the tableware, high durability and convenient use, after using the completion, seal up the back shroud once more, avoid revealing of washing liquid.

6. The portable cutlery bag of claim 1, wherein: the inner wall of the limiting groove is fixed with a positioning bulge, the upper end face of the connecting plate is symmetrically processed with two positioning grooves, when in actual use, a user rotates the front containing box and the rear containing box, so that the lower end of the front containing box and the lower end of the rear containing box are contacted with each other, then the user rotates the handle rod around the central axis of the rotating shaft, stops rotating the handle rod after the handle rod rotates 90 degrees, then the user continues to move the connecting plate downwards, the connecting plate moves downwards to drive the handle rod to move downwards, when the handle rod moves downwards to be contacted with the upper end face of the protecting cover plate, the connecting plate stops moving, then the connecting plate is fixed by using the locking bolt again, then the user places the front containing box and the rear containing box on the upper end of the connecting plate, thereby realizing that the limiting groove is sleeved on the connecting plate and the handle rod, and simultaneously realizing that the positioning rod is inserted into, and then realize holding the case behind and hold the case before and fix a position fixedly, then the user places the baffle in the front and holds the case and hold the case upper end behind, has realized the function that the extension was placed, convenient to use.