A bag capable of expanding space

Abstract

The utility model belongs to the field of luggage technology, especially relate to a luggage with extensible space, include: box, telescopic pull rod and trundle, telescopic pull rod fixed mounting below the box, the trundle fixed mounting at one side of the box, the inner wall of box is connected with the extension box of sliding, the inner top wall of extension box is connected with the support ring fixedly, the lower surface of support ring is connected with the same number of slide rod of slip sleeve, the outer surface of slide rod is connected with the inner wall of slip sleeve of sliding, the inner wall of baffle groove is contacted with one end of the baffle, through the cooperation between extension box, slip sleeve, support ring and slide rod, through the function that baffle groove and baffle provide support and limit to slide rod, keep the stability after the moving position of extension box, through the support of support ring in the inside of extension box, make extension box have the function of resisting compression, thereby improve the security of fragile or easily deformed goods in the luggage.

Description

Technical Field

[0001] This utility model belongs to the field of luggage technology, and in particular relates to a luggage with expandable space. Background Technology

[0002] As an important tool for daily travel, work, and life, bags and suitcases use their internal storage space to hold the items you need to carry. Sometimes, when you carry a lot of items, most bags and suitcases now have an expandable function to flexibly adjust the internal storage space, meeting the needs of carrying different items and improving ease of use.

[0003] Currently, most bags with expandable internal storage space have an expansion loop at the top. This loop is unfolded for use to increase storage capacity and retracted when not in use, then zipped up. While this design expands storage space, the expansion loop lacks support. During travel, bags often stack, and if fragile or easily damaged items are inside, the weight can cause damage. Therefore, we propose a bag with expandable storage space. Utility Model Content

[0004] The purpose of this invention is to provide a bag with expandable space to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a bag with expandable space, comprising: a bag body, a telescopic pull rod and casters, wherein the telescopic pull rod is fixedly installed at the bottom of the bag body, the casters are fixedly installed on one side of the bag body, an expansion box is slidably connected to the inner wall of the bag body, and a lid is provided on the top of the expansion box; Two support plates are fixedly connected to the inner bottom wall of the box, and the two support plates are symmetrical. Two sliding sleeves are fixedly connected to the upper surface of each of the two support plates. A support ring is fixedly connected to the inner top wall of the expansion box. The lower surface of the support ring is fixedly connected to a sliding rod with the same number of sliding sleeves. The outer surface of the sliding rod is slidably connected to the inner wall of the sliding sleeve. Used to guide and support the movement of the expansion box.

[0006] A connecting rod is provided between the two sliding sleeves, and the two ends of the connecting rod are fixedly connected to the two sliding sleeves respectively. A slide rail is provided on the inner side of the connecting rod. Two stops are slidably connected to the inner wall of the slide rail, and the two stops are symmetrical. Multiple grooves are provided on the inner side of the sliding rod, and the multiple grooves are arranged at equal intervals. The inner wall of the groove contacts one end of the stop. A control mechanism is provided inside the slide rail.

[0007] In this technical solution, the movement position of the expansion box is located.

[0008] In the above technical solution, the control mechanism further includes an ear seat, one side of which is fixedly connected to the inner top wall of the slide, a guide rod is slidably connected to the inner wall of the ear seat, one end of the guide rod is fixedly connected to the end of the stop block located inside the slide, and the other end of the guide rod is fixedly connected to a toothed plate.

[0009] In this technical solution, it is used to transmit power.

[0010] In the above technical solution, the inner wall of the slide is rotatably connected to a rotating shaft, and a gear is fixedly connected to the outer surface of the rotating shaft, the gear meshing with the ruler plate.

[0011] In this technical solution, power is provided for the retraction and movement of the stop.

[0012] In the above technical solution, further, a knob is slidably connected to the outer surface of the rotating shaft, a limit block is fixedly connected to one end of the rotating shaft outside the connecting rod, a first spring is sleeved on the outside of the rotating shaft, one end of the first spring is connected to the inner bottom wall of the knob, and the other end of the first spring is connected to one side of the limit block.

[0013] In this technical solution, an elastic pushing force is provided for the knob.

[0014] In the above technical solution, further, a positioning rod is fixedly connected to the inner wall of the knob, a positioning groove is opened on the inner side of the rotating shaft, the inner wall of the positioning groove is slidably connected to the outer surface of the positioning rod, and a card seat is fixedly connected to the outer surface of the connecting rod, the inner wall of the card seat is in contact with the outer surface of the knob.

[0015] In this technical solution, the stability of the knob is maintained.

[0016] In the above technical solution, further, a support block is fixedly connected to the inner wall of the slide, the outer surface of the guide rod is slidably connected to the inner wall of the support block, a second spring is sleeved on the outside of the guide rod, one end of the second spring is fixedly connected to the end of the stop block located inside the slide, and the other end of the second spring is fixedly connected to one side of the support block.

[0017] In this technical solution, an elastic pushing force is provided for the stop block.

[0018] In the above technical solution, the number of casters is four, and the four casters are located at the four corners of the box.

[0019] This technical solution facilitates the movement of the entire bag / case.

[0020] The beneficial effects of this utility model are: 1. This expandable case, through the cooperation of the expansion case, sliding sleeve, support ring, and sliding rod, uses the sliding sleeve to support and guide the sliding rod, maintaining the expansion case's smooth upward movement. The stop groove and stop block provide support and limit the sliding rod, maintaining the stability of the expansion case after it moves. The support ring provides support inside the expansion case, giving it pressure resistance and improving the safety of fragile or easily deformable items inside the case.

[0021] 2. This expandable case uses a combination of blocks, grooves, toothed plates, gears, and knobs. The movement of the blocks is controlled by the knob. Using the expandable case requires minimal operation; simply turning the knob releases or restricts the expansion case's movement, improving its ease of use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the housing and expansion box in this utility model; Figure 3 This is a bottom view of the expansion box structure in this utility model; Figure 4 This is a schematic diagram of the connecting rod structure in this utility model; Figure 5 This is a cross-sectional schematic diagram of the internal structure of the connecting rod in this utility model; Figure 6 This is a cross-sectional schematic diagram of the internal structure of the knob in this utility model.

[0023] The markings in the diagram are as follows: 1. Box body; 2. Telescopic rod; 3. Casters; 4. Extension box; 5. Support plate; 6. Sliding sleeve; 7. Support ring; 8. Sliding rod; 9. Slide rail; 10. Stop block; 11. Stop groove; 12. Control mechanism; 1201. Ear seat; 1202. Guide rod; 1203. Gear plate; 1204. Rotating shaft; 1205. Gear; 1206. Knob; 1207. Limit block; 1208. First spring; 1209. Positioning rod; 1210. Positioning groove; 1211. Second spring; 1212. Card seat; 1213. Support block; 13. Box cover; 14. Connecting rod. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Example 1: This example provides a bag with expandable space, including: a bag body 1, a telescopic rod 2 and casters 3. The telescopic rod 2 is fixedly installed at the bottom of the bag body 1, and the casters 3 are fixedly installed on one side of the bag body 1. An expansion box 4 is slidably connected to the inner wall of the bag body 1, and a lid 13 is provided on the top of the expansion box 4. The telescopic rod 2 has the function of telescopic adjustment of length to meet the needs of users. The interior of the expansion box 4 and the box body 1 is also sewn together with an expansion cloth to fill the gap between the expansion box 4 and the box body 1. One side of the box cover 13 is directly sewn to the box body 1, and the other part is connected by a zipper so that the box cover 13 can be opened and closed.

[0027] Two support plates 5 are fixedly connected to the inner bottom wall of the box 1, and the two support plates 5 are symmetrical. Two sliding sleeves 6 are fixedly connected to the upper surface of each of the two support plates 5. A support ring 7 is fixedly connected to the inner top wall of the expansion box 4. The lower surface of the support ring 7 is fixedly connected to the same number of sliding rods 8 as the sliding sleeves 6. The outer surface of the sliding rods 8 is slidably connected to the inner wall of the sliding sleeves 6. The support plate 5 provides support for the sliding sleeve 6, and the support ring 7 provides support at the top of the expansion box 4. The support ring 7 extends and retracts with the sliding sleeve 6 through the sliding rod 8, so that the expansion box 4 can move up and down.

[0028] A connecting rod 14 is provided between the two sliding sleeves 6, and the two ends of the connecting rod 14 are fixedly connected to the two sliding sleeves 6 respectively. A slide 9 is provided on the inner side of the connecting rod 14. Two stops 10 are slidably connected to the inner wall of the slide 9, and the two stops 10 are symmetrical. Multiple grooves 11 are provided on the inner side of the sliding rod 8, and the multiple grooves 11 are arranged at equal intervals. The inner wall of the groove 11 is in contact with one end of the stop 10. A control mechanism 12 is provided inside the slide 9.

[0029] The stability of the sliding sleeve 6 is increased by the connecting rod 14, and the blocking block 10 blocks the blocking groove 11 to restrict the movement of the sliding rod 8, thereby maintaining the stability of the sliding rod 8 and the expansion box 4. The required expansion height of the expansion box 4 is adjusted by multiple blocking grooves 11, and the movement position of the blocking block 10 is controlled by the control mechanism 12.

[0030] Example 2: This example provides a bag with expandable space. In addition to the technical solutions of the above examples, it also has the following technical features: the control mechanism 12 includes an ear seat 1201. One side of the ear seat 1201 is fixedly connected to the inner top wall of the slide 9. A guide rod 1202 is slidably connected to the inner wall of the ear seat 1201. One end of the guide rod 1202 is fixedly connected to one end of the stop block 10 located inside the slide 9. The other end of the guide rod 1202 is fixedly connected to a toothed plate 1203.

[0031] The guide rod 1202 is supported by the ear seat 1201 to maintain its stability. The guide rod 1202 transmits the power of the toothed plate 1203 to the stop block 10, thereby controlling the movement position of the stop block 10.

[0032] Example 3: This example provides a bag with expandable space. In addition to the technical solutions of the above examples, it also has the following technical features: the inner wall of the slide 9 is rotatably connected to a rotating shaft 1204, and the outer surface of the rotating shaft 1204 is fixedly connected to a gear 1205, which meshes with the ruler plate.

[0033] The number of toothed plates 1203 is the same as the number of stop blocks 10. One toothed plate 1203 is located above the gear 1205, and the other toothed plate 1203 is located above the gear 1205. When the gear 1205 rotates, it drives the two stop blocks 10 to retract into the slide rail 9 at the same time, disengaging from the contact with the stop groove 11 and releasing the positioning restriction on the slide rod 8.

[0034] Example 4: This example provides a bag with expandable space. In addition to the technical solutions of the above examples, it also has the following technical features: a knob 1206 is slidably connected to the outer surface of the rotating shaft 1204; a limiting block 1207 is fixedly connected to one end of the rotating shaft 1204 outside the connecting rod 14; a first spring 1208 is sleeved on the outside of the rotating shaft 1204; one end of the first spring 1208 is connected to the inner bottom wall of the knob 1206; and the other end of the first spring 1208 is connected to one side of the limiting block 1207.

[0035] The limiting block 1207 provides support for the first spring 1208, and the first spring 1208 provides elastic push for the knob 1206.

[0036] Example 5: This example provides a bag with expandable space. In addition to the technical solutions of the above examples, it also has the following technical features: a positioning rod 1209 is fixedly connected to the inner wall of the knob 1206; a positioning groove 1210 is opened on the inner side of the rotating shaft 1204; the inner wall of the positioning groove 1210 is slidably connected to the outer surface of the positioning rod 1209; a card seat 1212 is fixedly connected to the outer surface of the connecting rod 14; and the inner wall of the card seat 1212 is in contact with the outer surface of the knob 1206.

[0037] The knob 1206 outputs power through the positioning rod 1209, and the rotating shaft 1204 receives the power from the knob 1206 through the positioning groove 1210. The knob 1206 facilitates the rotation of the rotating shaft 1204 and the gear 1205. The knob 1206 is encased in the holder 1212 to maintain its stability and limit its rotation. When the knob 1206 is not in use, the first spring 1208 pushes the knob 1206 into contact with the holder 1212. When the knob 1206 is in use, it is pulled toward the limit block 1207. As the knob 1206 moves, the first spring 1208 is compressed. After the knob 1206 disengages from the holder 1212, the positioning restriction on the knob 1206 is released, and the knob 1206 can be rotated to drive the rotating shaft 1204 and the gear 1205 to rotate.

[0038] Example 6: This example provides a bag with expandable space. In addition to the technical solutions of the above examples, it also has the following technical features: a support block 1213 is fixedly connected to the inner wall of the slide 9; the outer surface of the guide rod 1202 is slidably connected to the inner wall of the support block 1213; a second spring 1211 is sleeved on the outside of the guide rod 1202; one end of the second spring 1211 is fixedly connected to one end of the stop block 10 located inside the slide 9; and the other end of the second spring 1211 is fixedly connected to one side of the support block 1213.

[0039] The support block 1213 provides support for the second spring 1211, and the second spring 1211 provides elastic pushing force for the stop block 10, pushing the second stop block 10 to contact the stop groove 11.

[0040] Example 7: This example provides a bag with expandable space. In addition to the technical solutions of the above examples, it also has the following technical features: the number of casters 3 is four, and the four casters 3 are located at the four corners of the bag body 1.

[0041] Among them, casters 3 provide support for the entire bag, making it easy to move the bag to a different position.

[0042] Working principle: When it is necessary to expand the capacity of the bag, first pull the knob 1206 to pull the knob 1206 out of the card holder 1212. As the knob 1206 moves, the first spring 1208 is compressed. After the knob 1206 is pulled out of the card holder 1212, it is rotated. As the knob 1206 rotates, it drives the rotating shaft 1204 and the gear 1205 to rotate simultaneously. The gear 1205 drives the stop block 10 to move through the guide rod 1202. The stop block 10 disengages from the card slot, thus releasing the positioning restriction on the slide rod 8. Then, the knob 1206 is put back into the card holder 1212, which can pull the expansion box 4 to move upward. After the expansion box 4 moves, the internal volume of the bag increases. When the expansion box 4 is not in use, the operation is reversed.

[0043] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A bag with expandable space, comprising: The box body (1), telescopic rod (2) and casters (3) are characterized in that the telescopic rod (2) is fixedly installed below the box body (1), the casters (3) are fixedly installed on one side of the box body (1), an extension box (4) is slidably connected to the inner wall of the box body (1), and a box cover (13) is provided on the top of the extension box (4). The inner bottom wall of the box (1) is fixedly connected to two support plates (5), and the two support plates (5) are symmetrical. The upper surfaces of the two support plates (5) are fixedly connected to two sliding sleeves (6). The inner top wall of the expansion box (4) is fixedly connected to a support ring (7). The lower surface of the support ring (7) is fixedly connected to a sliding rod (8) with the same number as the sliding sleeves (6). The outer surface of the sliding rod (8) is slidably connected to the inner wall of the sliding sleeve (6). A connecting rod (14) is provided between the two sliding sleeves (6), and the two ends of the connecting rod (14) are fixedly connected to the two sliding sleeves (6) respectively. A slide rail (9) is provided on the inner side of the connecting rod (14). Two stops (10) are slidably connected to the inner wall of the slide rail (9), and the two stops (10) are symmetrical. A plurality of grooves (11) are provided on the inner side of the sliding rod (8), and the plurality of grooves (11) are arranged in an equidistant array. The inner wall of the groove (11) is in contact with one end of the stop (10). A control mechanism (12) is provided inside the slide rail (9).

2. The expandable bag according to claim 1, characterized in that, The control mechanism (12) includes an ear seat (1201), one side of which is fixedly connected to the inner top wall of the slide (9), and a guide rod (1202) is slidably connected to the inner wall of the ear seat (1201). One end of the guide rod (1202) is fixedly connected to the end of the stop block (10) located inside the slide (9), and the other end of the guide rod (1202) is fixedly connected to a toothed plate (1203).

3. A bag with expandable space according to claim 2, characterized in that, The inner wall of the slide (9) is rotatably connected to a rotating shaft (1204), and a gear (1205) is fixedly connected to the outer surface of the rotating shaft (1204). The gear (1205) meshes with the ruler plate.

4. A bag with expandable space according to claim 3, characterized in that, A knob (1206) is slidably connected to the outer surface of the rotating shaft (1204). A limit block (1207) is fixedly connected to one end of the rotating shaft (1204) outside the connecting rod (14). A first spring (1208) is sleeved on the outside of the rotating shaft (1204). One end of the first spring (1208) is connected to the inner bottom wall of the knob (1206), and the other end of the first spring (1208) is connected to one side of the limit block (1207).

5. A bag with expandable space according to claim 4, characterized in that, The inner wall of the knob (1206) is fixedly connected to a positioning rod (1209), and the inner side of the rotating shaft (1204) is provided with a positioning groove (1210). The inner wall of the positioning groove (1210) is slidably connected to the outer surface of the positioning rod (1209). The outer surface of the connecting rod (14) is fixedly connected to a card seat (1212), and the inner wall of the card seat (1212) is in contact with the outer surface of the knob (1206).

6. A bag with expandable space according to claim 2, characterized in that, The inner wall of the slide (9) is fixedly connected to a support block (1213). The outer surface of the guide rod (1202) is slidably connected to the inner wall of the support block (1213). A second spring (1211) is sleeved on the outside of the guide rod (1202). One end of the second spring (1211) is fixedly connected to one end of the stop block (10) located inside the slide (9). The other end of the second spring (1211) is fixedly connected to one side of the support block (1213).

7. A bag with expandable space according to claim 1, characterized in that, The number of casters (3) is four, and the four casters (3) are located at the four corners of the box (1).

Images