Box body dismounting structure of drawbar box capable of being seated

Abstract

The utility model belongs to the technical field of box body dismounting structures of seated draw-bar boxes, in particular to a box body dismounting structure of a seated draw-bar box, which comprises a frame and a luggage box, the frame comprises a main support and an auxiliary support which are hinged with each other, and the main support and the auxiliary support are both provided with wheels; a handle rod and a seat are arranged on the main bracket; a wheel shaft is transversely arranged at the lower end of the main bracket; a hinge seat with an opening is arranged at the lower end of the luggage case, and the wheel axle is a circular tube; a bolt is arranged on the seat, and the elastic piece pushes the bolt to penetrate out of the surface of the seat; the hinge seat of the luggage case is sleeved on the wheel shaft, the luggage case is pushed to rotate around the wheel shaft until the luggage case is close to the main bracket, and the bolt is meshed with the clamping groove of the luggage case; a setting knob is rotationally arranged on the seat, and when the knob is rotated, the bolt is pulled by the knob to retract into the seat; the utility model provides the box body dismounting structure of the seated draw-bar box, which is stable in structure and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of a box body disassembly structure of a trolley case, in particular to a box body disassembly structure of a trolley case. Background Art

[0002] In order to make it easier for parents to take their kids out, suitcase trolleys have appeared on the market. A detachable suitcase is set on the frame, and clothes and other items can be placed in the suitcase. When the frame is unfolded, the child can sit on the seat of the frame, and when the frame is folded, the whole can be used as an ordinary suitcase.

[0003] For example, Chinese patent CN2016210287178, a multifunctional luggage cart disassembly and assembly mechanism. It includes a luggage box body and a cart frame, the luggage box body is installed on the cart frame through a detachable structure, the bottom of the cart frame is equipped with a base that matches the bottom of the luggage box body, the cart frame has a cart frame middle pole, the bottom of the luggage box body cooperates with the base through a positioning structure, and the middle or upper part of the luggage box body is fastened to the cart frame middle pole through a buckle structure. This method of luggage box installation has been optimized, but it is not convenient enough to install the luggage box in this way. The user needs to lift the entire luggage box to the specified position and then lock the buckle, which is not convenient and laborious. Summary of the invention

[0004] The utility model aims to provide a box body disassembly structure of a trolley case which has a stable structure and is easy to operate.

[0005] The purpose of the utility model is achieved in this way:

[0006] A detachable luggage structure for a trolley case includes a frame and a luggage case, wherein the frame includes a main support and an auxiliary support hinged to each other, and both the main support and the auxiliary support are provided with wheels; a handle bar and a seat are provided on the main support; a wheel axle is transversely provided at the lower end of the main support, and wheels are provided on both sides of the wheel axle;

[0007] The lower end of the luggage case is provided with an articulated seat with an opening, and the wheel axle is in the form of a round tube or an arc-shaped position in cooperation with the articulated seat; a latch is provided on the seat, and the elastic member pushes the latch to pass through the seat surface; the articulated seat of the luggage case is sleeved on the wheel axle, and the luggage case is pushed to rotate around the wheel axle until it is close to the main bracket, and the latch engages with the card slot of the luggage case;

[0008] A setting knob is rotatably arranged on the seat, and when the knob is turned, the knob pulls the latch to be retracted into the interior of the seat.

[0009] The knob can only drive the latch to retract into the seat; when an external force pushes the latch, the latch can also overcome the action force of the elastic member and retract into the seat.

[0010] The side of the knob is provided with an arc groove, the side of the latch is provided with a longitudinal groove, the positioning shaft passes through the arc groove and the longitudinal groove in sequence and connects the knob and the latch; when the knob is turned, the positioning shaft moves along the arc groove to pull the latch into the seat; when the knob is released, the elastic member resets the knob and the latch; an external force pushes the latch, and the latch retracts into the seat. Under the action of the longitudinal groove, the knob will not be driven during the retraction of the latch.

[0011] It includes a fixed seat, a seat is provided with a through hole, the fixed seat is fixed at the position of the through hole, a knob is rotatably arranged in the gap between the seat and the fixed seat, and the rotating part of the knob is located in the through hole; a longitudinal notch is arranged on the side of the fixed seat, and the positioning shaft is limited in the longitudinal notch of the fixed seat.

[0012] An inner concave portion is arranged inside the fixing seat, and the latch and the elastic member are located in the inner concave portion.

[0013] The cross-sections of the inner recess and the latch are both square.

[0014] The inner side of the through hole is provided with a first step portion, and the knob is provided with a second step portion matched with the first step portion; the knob, the fixing seat, the latch and the elastic member are connected to form a whole, and the fastener fixes the whole to the lower end of the seat.

[0015] The rotating portion of the knob is lower than the through hole.

[0016] The rotation axis of the knob is arranged obliquely with respect to the seat surface.

[0017] The lower end of the latch is provided with an inclined surface.

[0018] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0019] 1. The utility model simplifies the installation method of the luggage case. During installation, the user first places the hinged seat of the luggage case on the wheel axle, and then pushes the luggage case to rotate around the wheel axle until it is close to the main bracket. During the rotation of the luggage case, the luggage case first pushes the latch to be retracted into the inner side of the seat, and then the latch engages with the card slot of the luggage case; thereby, the luggage case is stably installed between the wheel axle of the main bracket and the seat. During the installation process, the user only needs to perform two actions, one to place and one to push the luggage case. When the luggage case needs to be removed, turn the knob and pull the luggage case to rotate around the wheel axle. The user operation is simple.

[0020] 2. The main load of the luggage box of the utility model acts directly on the wheel axle, which reduces the force of the luggage box weight on other parts of the frame and makes the frame more stable.

[0021] 3. The utility model adopts a rotating method to pull the latch. The knob only allows the latch to be retracted into the seat, and the extension of the latch is affected by the elastic member.

[0022] 4. The knob part of the utility model is easy to install. The worker first connects the knob, the fixing seat, the latch and the elastic member to form a whole, and then fixes the whole to the lower end of the seat with a fastener. This method greatly improves the installation efficiency and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is one of the structural schematic diagrams of the utility model;

[0024] Figure 2 This is the second structural diagram of the utility model;

[0025] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0026] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at point A;

[0027] Figure 5 This is one of the structural schematic diagrams of the luggage case of the utility model in the unfolded state;

[0028] Figure 6 This is the second structural schematic diagram of the luggage case of the utility model in the unfolded state;

[0029] Figure 7 It is one of the exploded structural schematic diagrams of the frame part of the utility model;

[0030] Figure 8 yes Figure 7 A schematic diagram of the enlarged structure at B;

[0031] Fig. 9 This is the second exploded structural diagram of the frame part of the utility model;

[0032] Fig.10 yes Fig. 9 A schematic diagram of the enlarged structure at C;

[0033] Fig.11 It is a schematic diagram of the exploded internal structure of the frame part of the utility model;

[0034] Fig.12 yes Fig.11 It is a schematic diagram of the enlarged structure at point D.

[0035] In the figure: 1-frame; 11-main bracket; 111-wheel axle; 12-auxiliary bracket; 13-handle bar; 14-seat; 141-perforation; 142-first step; 19-wheel; 2-trunk; 21-slot; 22-hinged seat; 3-latch; 31-latch longitudinal notch; 32-inclined surface; 4-fixed seat; 41-fixed seat longitudinal notch; 42-inner concave portion; 5-knob; 51-second step; 52-arc groove; 6-spring; 7-positioning shaft;

[0036] a- The angle between the upper end surface of the knob and the upper end surface of the seat. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to the accompanying drawings. Figure 1-12 As shown:

[0038] A detachable luggage structure for a trolley case includes a frame 1 and a luggage case 2. The frame 1 includes a main support 11 and an auxiliary support 12 that are hinged to each other. The hinged connection between the main support 11 and the auxiliary support 12 is not the key point of protection of the utility model, so this position is not described. The existing products of this structure are mature, and any commonly used structure on the market can be used. The main support 11 and the auxiliary support 12 are both provided with wheels 19; the main support 11 is provided with a handle bar 13 and a seat 14; the lower end of the main support 11 is provided with a wheel axle 111 in a horizontal direction, and wheels 19 are provided on both sides of the wheel axle 111;

[0039] The lower end of the luggage case 2 is provided with an articulated seat 22 with an opening, and the wheel axle 111 is a round tube or an arc-shaped position in cooperation with the articulated seat. Preferably, the wheel axle 111 is directly a metal round tube. Of course, a round tube can also be provided at the position in cooperation with the articulated seat so that the luggage case can rotate around this position. The seat 14 is provided with a latch 3, and the elastic member pushes the latch 3 to pass through the lower surface of the seat 14; the articulated seat 22 of the luggage case is sleeved on the wheel axle 111, pushing the luggage case to rotate around the wheel axle until it is against the main bracket 11, and the latch 3 is engaged with the card slot 21 of the luggage case; during the rotation of the luggage case, the latch can be pushed open and the latch can enter the card slot of the luggage case. Preferably, the luggage case has a groove that cooperates with the main bracket. When the luggage case is against the main bracket, the main bracket is limited in the groove to maintain the position and ensure the stability of the structure.

[0040] The seat 14 is provided with a knob 5, which is rotated to pull the latch 3 into the seat 14. The knob 5 can only drive the latch 3 to retract into the seat 14; when an external force pushes the latch 3, the latch 3 can also overcome the force of the elastic member and retract into the seat 14. The elastic member is preferably a common elastic member such as a spring 6 and soft rubber.

[0041] The side of the knob 5 is provided with an arc groove 52, and the side of the latch 3 is provided with a longitudinal latch groove 31, and the positioning shaft 7 passes through the arc groove 52 and the longitudinal latch groove 31 in sequence and connects the knob 5 and the latch 3; when the knob 5 is turned, the positioning shaft 7 moves along the arc groove 52 to pull the latch 3 into the seat 14; when the knob 5 is released, the elastic member resets the knob 5 and the latch 3; an external force pushes the latch 3, and the latch 3 retracts into the seat 14. Under the action of the longitudinal latch groove 31, the knob 5 will not be driven during the retraction of the latch 3.

[0042] It includes a fixed seat 4, a seat 14 is provided with a through hole 141, the fixed seat 4 is fixed at the through hole position, the knob 5 is rotatably set in the gap between the seat 14 and the fixed seat 4, and the rotating part of the knob is located in the through hole 141; the side of the fixed seat is provided with a fixed seat longitudinal slot 41, and the positioning shaft 7 is limited in the fixed seat longitudinal slot 41.

[0043] The fixing seat 4 is provided with an inner recess 42, and the latch 3 and the elastic member are located in the inner recess 42. The latch 3 is limited by the inner recess 42, which is convenient for workers to assemble. Preferably, the cross-sections of the inner recess 42 and the latch 3 are both square, so that the movement process of the latch is more stable.

[0044] A first step portion 142 is provided on the inner side of the through hole 141, and the knob 5 is provided with a second step portion 51 matching with the first step portion 141; the knob 5, the fixing seat 4, the latch 3 and the elastic member are connected to form a whole, and the fastener fixes the whole to the lower end of the seat 14, and the fastener can be a bolt, a screw or other component.

[0045] The rotating part of the knob 5 is lower than the through hole 141; the rotating axis of the knob is inclined to the seat surface. Fig.11 As shown, the angle between the upper end surface of the knob and the upper end surface of the seat is a. With this structure, when a child sits on the seat, it is very laborious to put his hand vertically into the through hole to turn the knob, thereby preventing the child from accidentally turning the knob. Moreover, when the child sits on the seat, the suitcase is tilted against the main bracket, and even if the child accidentally turns the knob to separate the latch from the slot, the suitcase will still lean against the main bracket.

[0046] The lower end of the latch 3 is provided with an inclined surface 32. Under the effect of the inclined surface 32, the luggage box can push the latch to retract into the seat.

[0047] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable luggage structure for a trolley case, comprising a frame (1) and a luggage case (2), wherein the frame (1) comprises a main support (11) and an auxiliary support (12) which are hinged to each other, and the main support (11) and the auxiliary support (12) are both provided with wheels (19); a handle bar (13) and a seat (14) are provided on the main support (11); the characteristics are: A wheel axle (111) is transversely arranged at the lower end of the main support (11), and wheels (19) are arranged on both sides of the wheel axle (111); The lower end of the luggage case (2) is provided with an articulated seat (22) having an opening, and the wheel axle (111) is in the form of a round tube or an arc-shaped position in cooperation with the articulated seat; a latch (3) is provided on the seat (14), and an elastic member pushes the latch (3) to pass through the seat surface; the articulated seat (22) of the luggage case is sleeved on the wheel axle (111), pushing the luggage case to rotate around the wheel axle until it is against the main bracket, and the latch (3) engages with the card slot (21) of the luggage case; A setting knob (5) is rotatably provided on the seat (14); when the knob (5) is rotated, the knob (5) pulls the latch (3) to retract into the interior of the seat (14).

2. The box body disassembly structure of the trolley case according to claim 1 is characterized in that: The knob (5) can only drive the latch (3) to retract into the seat (14); when an external force pushes the latch (3), the latch (3) can also overcome the action force of the elastic member and retract into the seat (14).

3. The box body disassembly structure of the trolley case according to claim 1 or 2, characterized in that: The side of the knob (5) is provided with an arc groove (52), the side of the latch (3) is provided with a longitudinal notch, the positioning shaft (7) passes through the arc groove (52) and the longitudinal notch in sequence and connects the knob (5) and the latch (3); when the knob (5) is turned, the positioning shaft (7) moves along the arc groove (52) so as to pull the latch (3) into the seat (14); when the knob (5) is released, the elastic member resets the knob (5) and the latch (3); when an external force pushes the latch (3), the latch (3) is retracted into the seat (14), and under the action of the longitudinal notch, the knob (5) is not driven during the process of the latch (3) being retracted.

4. The box body disassembly structure of the trolley case according to claim 3 is characterized in that: The invention comprises a fixing seat (4), a seat (14) provided with a through hole (141), the fixing seat (4) being fixed at the position of the through hole, a knob (5) being rotatably arranged in a gap between the seat (14) and the fixing seat (4), and a rotating part of the knob being located in the through hole; a longitudinal notch being arranged on a side of the fixing seat, and a positioning shaft (7) being limited in the longitudinal notch of the fixing seat.

5. The box body disassembly structure of the trolley case according to claim 4 is characterized in that: An inner recess (42) is provided inside the fixing seat (4), and the latch (3) and the elastic member are located inside the inner recess (42).

6. The box body disassembly structure of the trolley case according to claim 5 is characterized in that: The cross sections of the inner recess (42) and the latch (3) are both square.

7. The box body disassembly structure of the trolley case according to claim 4, 5 or 6, characterized in that: A first step portion (142) is provided inside the through hole (141), and the knob (5) is provided with a second step portion (51) matched with the first step portion (142); the knob (5), the fixing seat (4), the latch (3) and the elastic member are connected to form a whole, and the fastener fixes the whole to the lower end of the seat (14).

8. The box body disassembly structure of the trolley case according to claim 4, 5 or 6, characterized in that: The rotating portion of the knob is lower than the through hole.

9. The box body disassembly structure of the trolley case according to claim 8, characterized in that: The rotation axis of the knob is arranged obliquely with respect to the seat surface.

10. The box body disassembly structure of a trolley case according to claim 1, 2, 4, 5, 6 or 9, characterized in that: The lower end of the latch (3) is provided with an inclined surface (32).

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