Luggage trundle assembly structure and luggage trundle

Abstract

The luggage trundle assembling structure is characterized in that a positioning groove is concavely formed in the surface of a luggage body, a mounting tray of the trundle is positioned and mounted in the positioning groove, and a side opening transversely penetrating through the edge of the luggage body is formed in at least one side edge, close to the edge of the luggage body, of the positioning groove; an elastic clamping piece capable of elastically moving in the height direction of the trundle is arranged at the top end of a sliding inserting part at the top of the installation tray, an inserting seat is arranged in the positioning groove, the inserting end, allowing the sliding inserting part to be inserted, of the inserting seat corresponds to a side opening of the positioning groove, and a clamping hole penetrating to the inner side of the box body is formed in the bottom, in the depth direction of the positioning groove, of the inserting seat. At least two clamping holes are formed in the inserting base, the elastic clamping pieces are matched with the clamping holes in a one-to-one correspondence mode, the sliding inserting portion of the installation tray is configured to be inserted into and retreat from the inserting base in a sliding mode through the inserting end in the transverse direction, and after the depth position, inserted into the inserting base, of the sliding inserting portion is limited, the elastic clamping pieces correspond to the clamping hole positions and are connected in a clamped mode. The utility model has the advantages of simple and fast dismounting and firm and reliable fixation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a luggage, exactly is luggage caster and the assembly structure of box body installation fixation. BACKGROUND

[0002] The luggage is the article storage tool of the box body installation having the caster, is convenient for moving, and its has become the daily necessities of people's extensive use. The existing luggage caster installation adopts the positioning recess on the box body (usually at the corner position of the bottom), a plurality of screw holes are arranged in the positioning recess, a plurality of screw hole columns are arranged on the installation tray of the caster, the installation tray is positioned in the positioning recess, the screw passes through the screw hole and is connected to the screw hole column to realize the fixation of the caster, the assembly is realized by using a plurality of screws, and the caster is inconvenient to disassemble and assemble.

[0003] In order to solve the above problems, the installation tray of the existing luggage caster is formed with a sliding insertion part, an insertion seat is designed on the box body, assembly is realized through the insertion and assembly of the sliding insertion part and the insertion seat, and the limitation in the insertion direction is still realized by using a screw, but the position and the number of the screw are optimized, but the screw is still needed to be fixed, and the disassembly and assembly operation convenience of the caster still needs to be improved. SUMMARY

[0004] The utility model discloses the purpose: in order to overcome the defects of prior art, the utility model provides a kind of luggage caster assembly structure, which is simple and quick to disassemble and assemble, and is fixed firmly and reliably.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of luggage caster assembly structure, including box body and caster, box body surface is recessed with positioning recess, the caster includes installation tray and the caster body installed on installation tray, installation tray is positioned in positioning recess, positioning recess has lateral opening that is transverse through box body edge at least one side near box body edge, the top of installation tray is equipped with sliding insertion part, the insertion seat for the insertion of sliding insertion part is equipped in positioning recess, the insertion end for the insertion of sliding insertion part on the insertion seat corresponds in the lateral opening of positioning recess, sliding insertion part of installation tray is configured as being inserted into insertion seat along transverse direction by insertion end, its characterized in that: the top of sliding insertion part is equipped with the elastic carding of the elastic activity along the height direction of caster, the bottom of insertion seat along the depth direction of positioning recess is equipped with the card hole that is penetrated to the inside of box body, elastic carding and card hole correspond to cooperate, after the depth position of sliding insertion part being inserted into insertion seat is limited, the elastic carding corresponds to the position of card hole and is connected.

[0007] By adopting the technical scheme, the mounting tray of the caster is inserted and mounted on the box body along the lateral side of the box body through the sliding insertion part, and the mounting tray is limited on the box body through the insertion and mounting of the sliding insertion part and the insertion seat; when the sliding insertion part is inserted and mounted on the insertion seat and positioned at the predetermined insertion depth position, the elastic clamping piece is clamped into the clamping hole to achieve the caster retreat prevention; the elastic clamping piece and the clamping hole are arranged at the position, the direction of clamping and unclamping of the elastic clamping piece into and out of the clamping hole is perpendicular to the direction of inserting the sliding insertion part into the insertion seat, the direction of clamping and unclamping of the elastic clamping piece into and out of the clamping hole is consistent with the height direction of the caster, the stable and reliable fixation of the caster is achieved, and the caster is prevented from falling off; when disassembling, the elastic clamping piece is clamped out of the clamping hole through the inside of the box body, and then the mounting tray is slid out of the insertion seat, so that the disassembly of the caster is completed, and the disassembly is convenient.

[0008] Preferably, the insertion seat is provided with a T-shaped insertion slot, the T-shaped insertion slot includes a central main slot cavity and limiting insertion slots on the lateral sides of the central main slot cavity, the clamping hole is formed on the bottom wall of the central main slot cavity, and the sliding insertion part is T-shaped and matched with the T-shaped insertion slot. The sliding insertion part includes a central main body, and insertion side wings matched with the limiting insertion slots are formed on the lateral sides of the central main body. In this structure, the T-shaped insertion slot is designed on the box body, and the T-shaped sliding insertion part is formed on the tray, so that the machining is facilitated, and the structure is compact.

[0009] Preferably, one end of the elastic clamping piece is a connecting part fixed on the sliding insertion part and capable of elastic deformation, the connecting part is provided with a clamping block at one end, the sliding insertion part is provided with a avoiding cavity for the elastic deformation of the elastic clamping piece, and the clamping block is provided with a guide slope inclined along the insertion and mounting direction of the sliding insertion part and the insertion seat. With the insertion of the sliding insertion part into the T-shaped insertion slot, the clamping block is elastically deformed by pressing the guide slope through the insertion starting end of the T-shaped insertion slot. In this structure, the elastic clamping piece has a simple structure, and the elastic clamping piece is elastically deformed and avoided after the sliding insertion part is inserted into the T-shaped insertion slot, so that the assembly is simple and convenient.

[0010] Preferably, one end of the elastic clamping piece is a connecting part fixed on the sliding insertion part and capable of elastic deformation, the connecting part is provided with a clamping block at one end, the sliding insertion part is provided with a avoiding cavity for the elastic deformation of the elastic clamping piece, and the clamping block is provided with a guide slope inclined along the insertion and mounting direction of the sliding insertion part and the insertion seat. With the insertion of the sliding insertion part into the T-shaped insertion slot, the clamping block is elastically deformed by pressing the guide slope through the insertion starting end of the T-shaped insertion slot. In this structure, the elastic clamping piece has a simple structure, and the elastic clamping piece is elastically deformed and avoided after the sliding insertion part is inserted into the T-shaped insertion slot, so that the assembly is simple and convenient.

[0011] Preferably, the T-shaped slot further extends a terminal slot at the end of the insertion depth direction, the terminal slot is connected with the limiting slot transversely to the T-shaped slot, thereby forming a U-shaped positioning edge slot around the central main slot cavity, correspondingly, the insertion beginning end of the sliding insertion part protrudes a front end wing plate connected with the two lateral insertion side wings, the front end wing plate is inserted and matched with the terminal slot; the elastic clamping piece extends along the insertion direction of the sliding insertion part inserted on the insertion seat, and the connecting part of the elastic clamping piece is integrally connected with the front end wing plate. Under the structure design, the terminal slot is designed to realize the U-shaped positioning edge slot around the central main slot cavity of the T-shaped slot, and after the front end wing plate and the insertion side wing are connected, the caster is firmly and reliably installed, so that the strength of the circumferential insertion part of the sliding insertion part is increased, and the front end of the caster is also increased after being inserted with the front end wing plate and the terminal slot, thereby increasing the limiting position of the caster on the box body; on the other hand, the front end wing plate can integrally connect the elastic clamping piece, the elastic clamping piece extends along the direction of the caster sliding insertion, so that the clamping and fixing of the elastic clamping piece are reliable.

[0012] Preferably, a tool positioning recess is arranged on the top end surface of the clamping block protruding into the clamping hole. Under the structure design, when the caster is disassembled, a tool is inserted into the tool positioning recess to press the clamping block out of the clamping hole, thereby facilitating the disassembly operation of the caster.

[0013] Preferably, at least two clamping holes are arranged on the insertion seat, and a plurality of elastic clamping pieces are arranged on the sliding insertion part and matched with the clamping holes one by one. At least two clamping holes and elastic clamping pieces are adopted for clamping and matching, that is, there are at least two clamping points for preventing retreat, so that the caster is fixed stably and reliably, and the caster is prevented from falling off.

[0014] Another object of the present application is to provide a luggage caster which is simple, convenient, firm and reliable in assembly, comprising a mounting tray and a caster body mounted on the mounting tray, characterized in that: the mounting tray is provided with a sliding insertion part on the top, the sliding insertion part comprises a central main body, and the two lateral sides of the central main body are formed with insertion side wings; and the top end of the sliding insertion part is provided with an elastic clamping piece which can elastically move along the height direction of the caster.

[0015] Further, the insertion beginning end of the central main body protrudes a front end wing plate connected with the two lateral insertion side wings, the elastic clamping piece extends along the insertion direction of the sliding insertion part inserted on the insertion seat, one end of the elastic clamping piece is a connecting part fixed on the front end wing plate and capable of elastically deforming, one end of the connecting part is provided with a clamping block, the sliding insertion part is provided with an avoiding cavity for the deformation of the elastic clamping piece, and the clamping block is provided with a guide slope inclined along the insertion direction of the sliding insertion part and the insertion seat.

[0016] The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model discloses a luggage trolley assembly structure overhead view angle diagram;

[0018] Figure 2 For Figure 1 The section view along A-A line in middle;

[0019] Figure 3 For Figure 1 The section view along B-B line in middle;

[0020] Figure 4 The utility model discloses a luggage trolley assembly structure dismantling state diagram;

[0021] Figure 5 The utility model discloses the structure schematic diagram of mounting tray;

[0022] Figure 6 The utility model discloses the positioning recess structure schematic diagram of box;

[0023] Figure 7 For Figure 6 The section view along C-C line in middle;

[0024] Figure 8 The utility model discloses another embodiment's mounting tray structure schematic diagram. Specific implementation

[0025] See attached Figures 1-7The utility model discloses a kind of luggage caster assembly structure, including box 1 (part of box is shown in drawing) and caster 2, box 1 surface recessed has locating recess 11, the caster 2 includes mounting tray 21 and caster body 22 mounted on mounting tray 21, caster body 22 is conventional technology, usually including wheel carrier 221 and gyro wheel 222, in most cases, caster 2 is installed in the corner position of box 1, thus neatly and reliably after the assembly of caster 2 and box 1, mounting tray 21 usually has L-shaped arrangement of surrounding edge plate 211, so that locating recess 11 has lateral opening 110 that is transverse through the rim of box 1 on the side close to the edge of box 1, the mounting tray 21 is positioned and installed in locating recess 11, and surrounding edge plate 211 covers on lateral opening 110, and mounting tray is implemented to box with corner shape, more neat and beautiful, but it does not exclude that mounting tray 21 does not use surrounding edge plate 211 design or uses the design of single-side surrounding edge plate on some luggage box;The top of mounting tray 21 is equipped with slide-inserting part 212, and the top of slide-inserting part 212 is equipped with elastic clamping piece 213 that can be elastically active along the height direction of caster 2, the locating recess 11 is equipped with the plug-in seat 111 for the plug-in of slide-inserting part 212, and the insertion end of the plug-in seat 111 for the plug-in of slide-inserting part 212 corresponds one lateral opening 110 in locating recess 11, so that mounting tray 21 is inserted into plug-in seat 111 via insertion end along lateral opening 110 of locating recess 11, while mounting tray 21 is synchronously inserted into locating recess 11, and the bottom 1110 of plug-in seat 111 along the depth direction of locating recess 11 is equipped with clamping hole 112 that is penetrated to the inside of box 1, to ensure that caster is installed stably, preferably at least two clamping holes 112 are provided on the plug-in seat, and elastic clamping piece 213 is matched one by one with clamping hole 112, and the slide-inserting part 212 of mounting tray 21 is configured to be inserted and withdrawn from plug-in seat 111 along the horizontal direction via insertion end, and after the depth position of slide-inserting part 212 is limited in plug-in seat 111, the elastic clamping piece 213 is correspondingly clamped to the position of clamping hole 112 and is clamped. Figure 3The elastic clamping piece 213 is provided with a larger design space in the direction of the X axis shown in the figure, so as to ensure the strength of the elastic clamping piece 213 and the reliability of the matching, and realize the perpendicularity with the direction in which the sliding insertion part 212 is inserted into the insertion seat 111, so that the caster is fixed stably and reliably, and the caster is prevented from falling off. In addition, the at least two clamping holes 112 and the elastic clamping piece are clamped and matched, that is, there are at least two independent stop clamping points, so as to further ensure that the caster is fixed stably and reliably, and the caster is prevented from falling off. The stop effect of the double stop points is increased, and in addition, the two elastic clamping pieces need to be pushed out of the clamping hole at the same time, and when a single elastic clamping piece is accidentally withdrawn, the other elastic clamping piece still maintains the clamping state, and when the external force disappears, the two elastic clamping pieces can be reset. According to the description of the specific embodiment, those skilled in the art can think of a single elastic clamping piece scheme, and the size of the elastic clamping piece can be set according to the space and needs.

[0026] In order to facilitate processing and forming, a T-shaped insertion slot 113 is arranged on the insertion seat 111, the T-shaped insertion slot 113 includes a center main slot cavity 1131 and limiting insertion slots 1132 on the two lateral sides of the center main slot cavity 1131, the clamping hole 112 is formed on the bottom wall of the center main slot cavity 1131, and the sliding insertion part 212 is a T-shaped structure matched with the T-shaped insertion slot 113. The sliding insertion part 212 includes a center main body 2121, and the installation tray is an injection molded part. In order to facilitate processing, the center main body is designed to be surrounded by a plate-shaped sliding insertion protruding plate located at the edge and connected by a grid-shaped rib plate. The center main body 2121 is formed with insertion side wings 2122 matched with the limiting insertion slots 1132 on the two lateral sides. A T-shaped insertion slot is designed on the box body 1, and a T-shaped sliding insertion part is formed on the installation tray 21, so as to facilitate processing and forming, and the structure is compact. Therefore, under the guidance of the utility model, those skilled in the art can also think of designing a protruding T-shaped insertion seat 111 on the positioning groove of the box body, and designing a sliding insertion part with a slot on the installation tray 21. However, this design has the defect of inconvenient processing.

[0027] Further, the elastic clamping piece 213 has a connecting portion 2131 at one end, which is fixed to the sliding insertion portion 212 and can be elastically deformed. The fixed connection between the connecting portion 2131 and the sliding insertion portion 212 is preferably integrally formed to facilitate processing and molding, and therefore the connecting portion can also be a metal elastic sheet. The connecting portion 2131 has a clamping block 2132 at one end, and the sliding insertion portion 212 has a clearance cavity 2120 for the elastic clamping piece 213 to deform. The clamping block 2132 has a guide slope 21321 inclined along the insertion direction of the sliding insertion portion 212 and the plug-in seat 111. When the sliding insertion portion 212 is inserted into the T-shaped insertion slot 113, the clamping block 2132 is elastically deformed by pressing the guide slope 21321 along the insertion starting end of the T-shaped insertion slot 113. The elastic clamping piece 213 has a simple structure, and after the sliding insertion portion is inserted into the T-shaped insertion slot 113, the elastic clamping piece 213 is pressed and deformed to avoid the clearance. It has the advantages of simple and convenient assembly. The structure of the elastic clamping piece 213 can also be a spring-cooperating movable component, such as a pin shaft cooperating with a spring. However, this design has the problems of too many components and the need for additional assembly operations, and the structure is complicated. Therefore, the elastic connecting portion is preferably used. In order to facilitate the tool to press on the clamping block 2132, the top surface of the clamping block 2132 protruding into the clamping hole 112 is provided with a tool positioning recess 21322. During the caster disassembly operation, the tool is inserted into the tool positioning recess to press the clamping block out of the clamping hole 112, facilitating the disassembly operation of the caster. This design is more advantageous in the design of double elastic clamping pieces. In addition, the top end of the clamping block is not protruding towards the port inside the box, so that the clamping block is lower than the mouth of the clamping hole, reducing the risk of accidental touch pressure. At this time, the tool positioning recess 21322 is more advantageous in assisting disassembly.

[0028] The connecting portion 2131 of the elastic clamping piece 213 can be connected to the plug-in side wing 2122 (as shown), or the central body 2121 of the sliding insertion portion 212; the elastic clamping piece 213 can extend vertically to the sliding insertion direction of the sliding insertion portion 212 (as shown) Figure 8 The connecting portion 2131 of the elastic clamping piece 213 can be connected to the plug-in side wing 2122 (as shown), or the central body 2121 of the sliding insertion portion 212; the elastic clamping piece 213 can extend vertically to the sliding insertion direction of the sliding insertion portion 212 (as shown) Figure 8But preferably, the elastic clamping piece 213 is extended in the direction of sliding and inserting the sliding inserting part 212 into the inserting seat 111, so that the elastic clamping piece 213 provides more reliable limiting. In the embodiment, an end slot 1133 is further extended at the end of the inserting depth direction of the T-shaped slot 113, the end slot 1133 is connected with the limiting slot 1132 transverse to the T-shaped slot 113, so that a U-shaped positioning edge slot I is formed around the central main slot cavity 1131, and correspondingly, the sliding inserting part 212 is provided with a front end wing plate 2123 connected with the two lateral inserting side wings 2122 at the inserting starting end, the front end wing plate 2123 is inserted and matched with the end slot 1133; the elastic clamping piece 213 is extended in the direction of inserting the sliding inserting part 212 into the inserting seat 111, and the connecting part 2131 of the elastic clamping piece 213 is integrally formed on the front end wing plate 2123. The design of the front end wing plate not only provides the forming space of the elastic clamping piece, but also is beneficial to the forming design of the elastic clamping piece and the avoiding cavity, and makes the elastic clamping piece 213 extend in the sliding and inserting direction of the mounting tray 21, the stress direction of the elastic clamping piece 213 and the clamping hole 112 and the extending direction of the elastic clamping piece are consistent, so that the structure is reliable, in addition, the front end wing plate 2123 connects the two inserting side wings 2122 into a whole, the structural strength of the limiting and inserting part on the mounting tray 21 is better, and the sliding and inserting cooperation of the U-shaped positioning edge slot ensures the stable and reliable mounting of the caster; to some extent, the front end wing plate 2323 also plays a guiding role when being inserted into the T-shaped slot, which is convenient for assembly operation.

[0029] As an embodiment of the utility model, one end of the clamping block 2132 abutting against the clamping hole 112 is in L-shaped stepped shape, and the edge of the clamping hole 112 is correspondingly positioned in the stepped slot of the L-shaped stepped end 21323. The positioning and clamping of the clamping block 2132 and the edge of the clamping hole 112 are more stable and reliable, and the clamping block does not break when the caster is accidentally pulled out.

[0030] The embodiment caster is installed at the corner position of the box body, to ensure that the caster 2 is installed on the box body 1 as a whole, neat and beneficial to the preset insertion depth of the sliding insertion part 212 inserted into the insertion seat 111. The edge of the installation tray 21 is provided with a surrounding edge plate 211, the sliding insertion part 212 is integrally connected to the surrounding edge plate 211, the surrounding edge plate 211 covers the side opening 110 of the positioning groove 11, and the surrounding edge plate 211 is limited by the end of the insertion seat 111, so as to limit the depth position of the sliding insertion part 212 inserted into the insertion seat 111. The positioning groove 11 is arranged at the corner of the box body, and one side opening edge of the positioning groove 11 corresponding to the insertion end of the insertion seat 111 further extends another side opening, and the surrounding edge plate 211 covering the two side openings and arranged in L shape is arranged on the installation tray 21. The surrounding edge plate forms a shielding protection, so that the appearance is more neat and beautiful, and the insertion of the caster is limited. Of course, the limitation of the installation tray inserted into the positioning groove can also be achieved by the design of the abutting limitation between the sliding insertion part and the insertion seat.

Claims

1. A luggage caster assembly structure, comprising a luggage body and a caster, the luggage body surface is concavely provided with a positioning groove, the caster comprises a mounting tray and a caster body mounted on the mounting tray, the mounting tray is positioned and mounted in the positioning groove, the positioning groove has a side opening transversely penetrating the edge of the luggage body at at least one side edge close to the edge of the luggage body, the mounting tray is provided with a sliding insertion portion at the top, the positioning groove is provided with an insertion seat for insertion of the sliding insertion portion, the insertion end of the sliding insertion portion for insertion in the insertion seat corresponds to the side opening of the positioning groove, the sliding insertion portion of the mounting tray is configured to be inserted and withdrawn from the insertion seat along the transverse direction via the insertion end, characterized in that: The top end of the sliding insertion part is provided with an elastic clamping piece which can elastically move along the height direction of the caster, the bottom of the insertion seat along the depth direction of the positioning groove is provided with a clamping hole which penetrates to the inside of the box body, the elastic clamping piece is correspondingly matched with the clamping hole, after the depth position of the sliding insertion part inserted into the insertion seat is limited, the elastic clamping piece is correspondingly matched with the clamping hole position and clamped.

2. The luggage caster assembly structure according to claim 1, wherein: The insertion seat is provided with a T-shaped slot, the T-shaped slot includes a central main slot cavity and limiting slots on the lateral sides of the central main slot cavity, the clamping hole is formed on the bottom wall of the central main slot cavity, the sliding insertion part is T-shaped which is matched with the T-shaped slot, the sliding insertion part includes a central main body, and the lateral sides of the central main body are formed with insertion side wings which are matched with the limiting slots.

3. The luggage caster assembly structure according to claim 2, wherein: One end of the elastic clamping piece is a connecting part which is fixed on the sliding insertion part and can elastically deform, one end of the connecting part is provided with a clamping block, the sliding insertion part is provided with an avoiding cavity for the deformation of the elastic clamping piece, the clamping block is provided with a guide slope which is inclined along the insertion direction of the sliding insertion part and the insertion seat, and the clamping block elastically deforms along the guide slope when the sliding insertion part is inserted into the T-shaped slot.

4. The luggage caster assembly structure according to claim 3, wherein: The end of the clamping block which is in abutment with the clamping hole is in L-shaped stepped form, and the edge of the clamping hole is correspondingly matched in the stepped slot of the L-shaped stepped end.

5. The luggage caster assembly structure according to claim 3, wherein: The T-shaped slot further extends an end slot at the end in the insertion depth direction, the end slot is connected with the limiting slots of the T-shaped slot in the transverse direction, thereby forming a U-shaped positioning edge slot around the central main slot cavity, correspondingly, the insertion starting end of the sliding insertion part is provided with a front end wing plate which is connected with the insertion side wings on the lateral sides, and the front end wing plate is inserted and matched with the end slot; the elastic clamping piece extends along the insertion direction of the sliding insertion part inserted into the insertion seat, and the connecting part of the elastic clamping piece is integrally connected on the front end wing plate.

6. The luggage caster assembly structure according to claim 3, wherein: The top end of the clamping block inserted into the clamping hole is provided with a tool positioning recess.

7. The luggage caster assembly structure according to claim 3, wherein: The elastic clamping piece extends along the direction of the sliding insertion part inserted into the insertion seat.

8. The luggage caster assembly structure according to claim 1, wherein: The insertion seat is provided with at least two clamping holes, and the sliding insertion part is provided with a plurality of elastic clamping pieces which are one-to-one correspondingly matched with the clamping holes.

9. A luggage caster comprising a mounting tray and a caster body mounted on the mounting tray, characterized in that: The top of the mounting tray is provided with a sliding insertion part, the sliding insertion part includes a central main body, and the lateral sides of the central main body are formed with insertion side wings, and the top end of the sliding insertion part is provided with an elastic clamping piece which can elastically move along the height direction of the caster.

10. The luggage caster wheel of claim 9, wherein: The insertion starting end of the central main body is provided with a front end wing plate which is connected with the insertion side wings on the lateral sides, the elastic clamping piece extends along the insertion direction of the sliding insertion part inserted into the insertion seat, one end of the elastic clamping piece is a connecting part which is fixed on the front end wing plate of the sliding insertion part and can elastically deform, one end of the connecting part is provided with a clamping block, and the sliding insertion part is provided with an avoiding cavity for the deformation of the elastic clamping piece, and the clamping block is provided with a guide slope which is inclined along the insertion direction of the sliding insertion part and the insertion seat.

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