Telescopic support, baby crib and storage rack

Abstract

The utility model discloses a telescopic support, a baby crib and a storage rack, and belongs to the field of telescopic structures, the telescopic support comprises a vertical rod, and a first through hole is formed in the vertical rod; the second pipe sleeve is provided with a through groove, and the second pipe sleeve is provided with a first limiting hole; the placement block is fixed in the vertical rod, a pin shaft is mounted in the placement block, and a second through hole is formed in the placement block; and the supporting rod is used for fixedly supporting the second pipe sleeve. The baby crib comprises a crib body and at least two sets of telescopic supports, and the telescopic supports are arranged on the side edges of the crib body. The storage rack comprises a storage box and at least two sets of telescopic supports, and the telescopic supports are arranged on the side edge of the storage box. According to the telescopic support, the baby crib and the storage rack, the telescopic support is mechanically adjusted, and noise is reduced; the height of the bed body is adjusted through the telescopic support, and the telescopic support is connected with the bed body through the connecting body and supported through the supporting rods, so that the bed body is more stable in the height adjusting process.

Description

Technical Field

[0001] The utility model relates to the field of telescopic structures, in particular to a telescopic bracket, a baby crib and a storage rack. Background Art

[0002] For existing telescopic structures, hydraulic, pneumatic or electric means are generally adopted, such as cylinders and hydraulics. For babies, most of the day is spent sleeping, especially for younger babies. In order to facilitate care and give the baby a better sense of security, the baby crib is usually placed beside the big bed. Currently, since the height of the baby crib cannot be adjusted, when there is a height difference between the big bed and the baby crib, it is inconvenient to pick up or put the baby into the baby crib. Therefore, a baby crib with adjustable height is needed.

[0003] In the prior art, for example, a nursing device for clinical mother and baby care disclosed in Chinese Patent Publication No. CN221180905U adjusts the height of the baby crib by driving the up and down movement of the bed board through the telescopic movement of a hydraulic push rod. However, noise will occur during the lifting and lowering process of the hydraulic push rod, which will bring a sense of uneasiness to the baby; the movement process of the hydraulic push rod requires external force drive, so additional drive structures or drive devices need to be added during the use of the baby crib, occupying the space of the baby room itself. Content of the Utility Model

[0004] The utility model provides a telescopic bracket, a baby crib and a storage rack, aiming to solve the problems of noise and space occupation existing in the prior art when the height is adjusted by a hydraulic push rod.

[0005] To achieve the above purpose, the utility model adopts the following scheme:

[0006] A telescopic bracket provided by the utility model, the telescopic bracket includes a vertical rod, which is a hollow tube, and a first through hole is provided on the vertical rod; it also includes a second sleeve, which is provided with a through groove through which the vertical rod can pass up and down, the vertical rod passes through the through groove and can move up and down along the through groove, and a plurality of first limiting holes are vertically arranged on the side wall of the second sleeve; it further includes a placement block, which is fixed inside the vertical rod, and a telescopic pin shaft is installed inside the placement block; a second through hole is provided on the placement block; when the pin shaft retracts inside the placement block, the vertical rod can move up and down along the second sleeve, and the pin shaft passes through the second through hole and the first through hole in sequence and extends outside the first limiting hole, so that the vertical rod is fixed on the second sleeve; it also includes a plurality of support rods, which fixedly support the second sleeve.

[0007] Further, the telescopic support further includes a first pipe sleeve, a lifting member, a slider, a sliding member and a connecting body: the bottom of the first pipe sleeve is fixedly connected to the vertical rod; the first pipe sleeve is a hollow structure with an open bottom; an installation groove is provided above the first pipe sleeve; the lifting member is arranged in the installation groove and can move up and down along the installation groove; two partition plates are arranged in the placement block, a first placement groove is formed between the two partition plates, the slider is arranged in the first placement groove, and the second through hole is located on one side of the first placement groove; the pin shaft is fixed to the end of the slider and can extend out of the second through hole, and one side surface of the slider is set as a first inclined surface; the sliding member is arranged in the placement block, and the sliding member includes a connecting block and a guide rail fixed below the connecting block; one side surface of the guide rail is set as a second inclined surface; one end of the connecting body is connected to the lifting member, and the other end is connected to the connecting block; when the lifting member moves up and down, the first inclined surface fits and moves along the second inclined surface, so that the slider moves horizontally in the first placement groove, so that the pin shaft is received in the second through hole or extends out of the second through hole.

[0008] Further, a second limiting plate is arranged at the bottom end of the guide rail of the sliding member, and the sliding member moves upward until the second limiting plate contacts the partition plate.

[0009] Further, spherical protrusions are arranged at both ends of the connecting body; a first receiving groove is arranged on one side of the connecting block, and a second receiving groove is arranged on one side of the lifting member, and the spherical protrusions at both ends of the connecting body are respectively clamped in the first receiving groove and the second receiving groove.

[0010] Further, the placement block protrudes outwardly with a first limiting plate; a first baffle is fixedly arranged on one side of the placement block, the bottom of the first baffle contacts the first limiting plate, and the first limiting plate limits the movement of the slider and the sliding member within the placement block.

[0011] Further, a scale plate is fixedly attached to the surface of the vertical rod, and a plurality of scales are arranged vertically on the scale plate; a scale notch for displaying the scale is arranged on the surface of the second pipe sleeve.

[0012] Further, it further includes an upper connecting body, the number of the upper connecting bodies is two, and they are symmetrically arranged on the first pipe sleeve; the shape of the upper connecting body is arc-shaped, and the arc opening faces upward of the first pipe sleeve; the number of the support rods is two, and they are symmetrically arranged at the bottom of the second pipe sleeve, and the two support rods form a triangle with the ground; second placement grooves for inserting and fixing the support rods are arranged on both sides of the bottom of the second pipe sleeve, and the connection ends of the second placement grooves and the second pipe sleeve are closed.

[0013] Furthermore, a first connecting member is disposed between the two support rods; the first connecting member includes a connecting sleeve sleeved on the support rod and a reinforcing rod integrally connected to the two side connecting sleeves; the connecting sleeve is fixedly connected to the support rod; the reinforcing rod is an arc-shaped rod, and the center of curvature of the arc-shaped rod faces the ground; a universal wheel is disposed at the bottom of the support rod, and the universal wheel is detachably connected to the support rod; the universal wheel can be locked to the ground.

[0014] A baby crib includes a crib body and at least two sets of telescopic brackets, and the telescopic brackets are disposed on the side of the crib body; the top of the first pipe sleeve is fixedly connected to the crib body.

[0015] Furthermore, a first support frame is disposed below the bottom surface of the crib body, and the first support frame includes a plurality of first support pipes arranged side by side on the same horizontal plane, a second support pipe located at the end and connecting the plurality of first support pipes, and a third support pipe vertically disposed and connected to the second support pipe; the bottom of the third support pipe is fixedly connected to the placement block.

[0016] Furthermore, the crib body includes an enclosing baffle, and an "L" - shaped edge is disposed at the top of the baffle; a second connecting member is disposed between the upper connecting body and the edge, and the upper connecting body is fixedly connected to the second connecting member; the shape of the second connecting member is U - shaped; the second connecting member is fixedly connected to the edge.

[0017] Furthermore, a first extension block is extended at the bottom of the second connecting member, and a first connecting hole is horizontally penetrated in the first extension block; a second connecting hole is horizontally penetrated at the top of the upper connecting body, the first extension block is inserted into the upper connecting body, and the second connecting hole is coaxial with the first connecting hole; the second connecting member and the upper connecting body are connected by a connecting shaft, and the connecting shaft sequentially passes through the first connecting hole and the second connecting hole.

[0018] Optionally, the baffle on one side of the crib body is detachably connected to the two adjacent baffles on its two sides, so that the baffle can be folded.

[0019] Optionally, a top cover is disposed above the crib body; the top cover is connected to the crib body by a buckle.

[0020] Optionally, the number of the top covers is multiple, and the multiple top covers can be folded.

[0021] Optionally, the top cover is a protruding shell, and the surface of the shell is a curved surface.

[0022] Further, a storage basket is provided below the bed body, and a second support frame is fixedly arranged around the outer side of the storage basket; the second support frame is fixedly connected to the support rod.

[0023] A storage rack includes a storage box and at least two groups of the telescopic brackets, and the telescopic brackets are arranged on the side of the storage box; the top of the first pipe sleeve is fixedly connected to the storage box.

[0024] Compared with the existing technology, the utility model has the following advantages:

[0025] 1. The process of adjusting the height of the telescopic bracket is a mechanical adjustment, without the assistance of components such as hydraulic pressure and motors, reducing the noise during the adjustment process.

[0026] 2. The height of the bed body is adjusted through the telescopic bracket. The telescopic bracket is connected to the bed body through the connecting body and supported by the support rod, making the bed body more stable during the height adjustment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following further describes the present application in detail with reference to the drawings and specific embodiments.

[0028] Figure 1 It is the first perspective view of the telescopic bracket structure diagram provided by Embodiment 1 of the utility model.

[0029] Figure 2 It is the second perspective view of the telescopic bracket structure diagram.

[0030] Figure 3 It is the exploded view of the telescopic bracket.

[0031] Figure 4 It is the first perspective view of the connection diagram between the vertical rod and the first pipe sleeve.

[0032] Figure 5 It is the second perspective view of the connection diagram between the vertical rod and the first pipe sleeve.

[0033] Figure 6 It is the first perspective view of the connection diagram between the placement block and the connection body.

[0034] Figure 7 It is the second perspective view of the connection diagram between the placement block and the connection body.

[0035] Figure 8 It is the structure diagram of the placement block.

[0036] Figure 9 It is the connection diagram between the slider and the sliding part.

[0037] Figure 10 It is the structure diagram of the slider.

[0038] Figure 11 This is the first perspective of the schematic diagram of the sliding part structure.

[0039] Figure 12 This is the second perspective of the schematic diagram of the sliding part structure.

[0040] Figure 13 This is the schematic diagram of the structure of the first receiving groove in the first sleeve.

[0041] Figure 14 This is the schematic diagram of the structure of the lifting part in the first sleeve.

[0042] Figure 15 This is the schematic diagram of the connection structure between the placement block and the first baffle.

[0043] Figure 16 This is the front view of the second sleeve.

[0044] Figure 17 This is the rear view of the second sleeve.

[0045] Figure 18 This is the schematic diagram of the internal structure of the second sleeve.

[0046] Figure 19 This is the schematic diagram of the change of the telescopic support component when receiving upward force.

[0047] Figure 20 This is the schematic diagram of the change of the telescopic support component under the influence of gravity.

[0048] Figure 21 This is the first perspective of the overall structure schematic diagram of the baby crib in Embodiment 1.

[0049] Figure 22 This is the second perspective of the overall structure schematic diagram of the baby crib.

[0050] Figure 23 This is the third perspective of the overall structure schematic diagram of the baby crib.

[0051] Figure 24 This is the half-sectional view of the baby crib.

[0052] Figure 25 This is the overall structure schematic diagram of the baby crib after the height change.

[0053] Figure 26 This is Figure 25 the half-sectional view of the baby crib in

[0054] Figure 27 This is the schematic diagram of the baby crib structure in Embodiment 2.

[0055] Figure 28 This is the schematic diagram of the baby crib structure in Embodiment 3.

[0056] Figure 29It is a schematic diagram of the structure of a crib in Embodiment 4.

[0057] Description of main component symbols:

[0058] 1. Bed body; 11. Baffle; 12. Edge; 13. Top cover;

[0059] 2. Telescopic support;

[0060] 3. First pipe sleeve; 31. Second receiving groove; 32. Installation groove; 33. Lifting piece; 34. Upper connecting body; 341. Second connecting hole; 35. Second connecting piece; 351. First extension block; 352. First connecting hole; 36. Connecting shaft;

[0061] 4. Vertical rod; 41. Placement block; 411. Pin shaft; 412. First placement groove; 414. Partition; 415. First limiting plate; 42. Connecting body; 421. Spherical protrusion; 43. Slide block; 431. Slide rail; 44. Sliding piece; 441. Connecting block; 442. Guide rail; 443. Second limiting plate; 444. First receiving groove; 45. First baffle; 46. Scale plate; 47. First through hole; 48. Second through hole;

[0062] 5. Second pipe sleeve; 51. Through groove; 52. First limiting hole; 53. Scale notch; 54. Second placement groove;

[0063] 6. Support rod; 61. First connecting piece; 611. Connecting sleeve; 612. Reinforcing rod;

[0064] 7. First support frame; 71. First support pipe; 72. Second support pipe; 73. Third support pipe;

[0065] 8. Placing basket; 81. Third support frame;

[0066] 9. Universal wheel. Detailed implementation manners

[0067] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0068] Embodiment 1

[0069] Referring to the accompanying drawings of the specification, as Figures 1 - 20As shown in the figure, a telescopic bracket 2 includes a vertical rod 4 which is a hollow tube and is provided with a first through hole 47. It further includes a second sleeve 5 which is vertically provided with a through slot 51 through which the vertical rod 4 can pass. The vertical rod 4 passes through the through slot 51 and can move up and down along the through slot 51. A plurality of first limiting holes 52 are vertically arranged on the side wall of the second sleeve 5. It also includes a mounting block 41 which is fixed inside the vertical rod 4, and a telescopic pin 411 is installed inside the mounting block 41. A second through hole 48 is provided on the mounting block 41. When the pin 411 retracts inside the mounting block 41, the vertical rod 4 can move up and down along the second sleeve 5, and the pin 411 extends out of the first limiting hole 52 through the second through hole 48 and the first through hole 47 in sequence, so that the vertical rod 4 is fixed on the second sleeve 5. It further includes a plurality of support rods 6 which fixedly support the second sleeve 5.

[0070] Specifically, it further includes a first sleeve 3, a lifting member 33, a slider 43, a sliding member 44 and a connecting body 42. The connecting body 42 can be a connecting rope or a connecting rod. Among them, the bottom of the first sleeve 3 is fixedly connected to the vertical rod 4. The first sleeve 3 is a hollow structure with an open bottom, and an installation groove 32 is provided above the first sleeve 3. The lifting member 33 is arranged in the installation groove 32 and can move up and down along the installation groove 32. Two partition plates 414 are arranged inside the mounting block 41, and a first installation groove 412 is formed between the two partition plates 414. The slider 43 is arranged in the first installation groove 414, and the second through hole 48 is located on one side of the first installation groove 414. The pin 411 is fixed to the end of the slider 43 and can extend out of the second through hole 48, and one side surface of the slider 43 is set as a first inclined surface. The sliding member 44 is arranged inside the mounting block 41, and the sliding member 44 includes a connecting block 441 and a guide rail 442 fixed below the connecting block 441. One side surface of the guide rail 442 is set as a second inclined surface. One end of the connecting body 42 is connected to the lifting member 33, and the other end is connected to the connecting block 441. When the lifting member 33 moves up and down, the first inclined surface moves in contact with the second inclined surface, so that the slider 43 moves horizontally in the first installation groove 412, thereby making the pin 411 received in the second through hole 48 or extending out of the second through hole 48.

[0071] Further, a second limiting plate 443 is arranged at the bottom end of the guide rail 442 of the sliding member 44, and the sliding member 44 moves upward until the second limiting plate 443 contacts the partition plate 414.

[0072] Further, the mounting block 41 protrudes outward to be provided with a first limiting plate 415. A first baffle 45 is fixedly arranged on one side of the mounting block 41, the bottom of the first baffle 45 contacts the first limiting plate 415, and the first limiting plate 415 limits the movement of the slider 43 and the sliding member 44 inside the mounting block 41.

[0073] Further, spherical protrusions 421 are provided at both ends of the connecting body 42. A first receiving groove 444 is provided on one side of the connecting block 441, and a second receiving groove 31 is provided on one side of the lifting member 33. The spherical protrusions 421 at both ends of the connecting body 42 are respectively clamped in the first receiving groove 444 and the second receiving groove 31.

[0074] Further, a scale plate 46 is fixedly attached to the surface of the vertical rod 4, and a plurality of scales are vertically arranged on the scale plate 46; a scale notch 53 for displaying the scale is provided on the surface of the second sleeve 5.

[0075] Further, the number of the upper connecting bodies 34 is two, and they are symmetrically arranged on the first sleeve 3. The upper connecting body 34 is in an arc shape, and the arc opening faces upward above the first sleeve 3. The number of the support rods 6 is two, and they are symmetrically arranged at the bottom of the second sleeve 5. The two support rods 6 form a triangle with the ground. Second placement grooves 54 for inserting and fixing the support rods 6 are provided on both sides at the bottom of the second sleeve 5, and one end of the second placement groove 54 is closed. A first connecting member 61 is provided between the two support rods 6. The first connecting member 61 includes a connecting sleeve 611 sleeved on the support rod 6 and a reinforcing rod 612 integrally connected to the connecting sleeves 611 on both sides. The connecting sleeve 611 is fixedly connected to the support rod 6. The reinforcing rod 612 is an arc-shaped rod, and the center of curvature of the arc-shaped rod faces the ground.

[0076] Further, an installation groove 32 is provided at the top of the first sleeve 3, and a lifting member 33 protrudes from the upper surface of the installation groove 32.

[0077] The specific height adjustment process of the telescopic bracket 2 is as follows. Figure 19 As shown in the figure, when the height of the telescopic bracket 2 is adjusted, the connecting body 42 is subjected to an upward acting force and moves upward. The connecting body 42 drives the sliding member 44 to move upward along the first placement groove 412 through the first receiving groove 444. During the movement, the slider 43 slides downward relative to the guide rail 442 on the sliding member 44, so that the pin shaft 411 gradually retracts inward through the second through hole 48; until the second limiting plate 443 contacts the partition plate 414, at this time the pin shaft 411 is completely retracted, and then the height of the telescopic bracket 2 is adjusted.

[0078] As Figure 20 shown in the figure, when the height adjustment of the telescopic bracket 2 is completed, the sliding member 44 moves downward along the first placement groove 412 under the influence of gravity. During the movement, the slider 43 slides upward relative to the guide rail 442 on the sliding member 44, and the pin shaft 411 gradually extends outward through the first limiting block 52; until the bottom of the connecting block 441 contacts the partition plate 414, at this time the pin shaft 411 completely extends out of the second through hole 48, and then passes through the first through hole 47 on the vertical rod 4 and the first limiting hole 52 on the second sleeve 5, so that the height of the telescopic bracket 2 remains unchanged after the adjustment.

[0079] In addition, in order to facilitate the movement of the telescopic support 2, a universal wheel 9 is provided at the bottom of the support rod 6, and the universal wheel 9 is detachably connected to the support rod 62. The universal wheel 62 is a common component in existing office chairs, and the universal wheel 62 is selected as a wheel that can be locked to the ground.

[0080] Referring to the accompanying drawings of the specification, as Figures 21 - 26 shown, a crib includes a crib body 1 and at least two sets of telescopic supports 2, and the telescopic supports 2 are arranged on the side of the crib body 1. The upper connecting body 34 and the top of the first pipe sleeve 3 are fixedly connected to the crib body 1.

[0081] The crib body 1 includes an enclosing baffle 11, and an "L"-shaped edge 12 is provided at the top of the baffle 11. A second connecting member 35 is provided between the upper connecting body 34 and the edge 12, and the upper connecting body 34 is fixedly connected to the second connecting member 35. The shape of the second connecting member 35 is U-shaped. The second connecting member 35 is fixedly connected to the edge 12.

[0082] The bottom of the second connecting member 35 extends to form a first extension block 351, and a first connecting hole 352 is horizontally penetrated in the first extension block 351. A second connecting hole 341 is horizontally penetrated at the top of the upper connecting body 34. The first extension block 351 is inserted into the upper connecting body 34, and the second connecting hole 341 and the first connecting hole 352 are coaxial. The second connecting member 35 and the upper connecting body 34 are connected by a connecting shaft 36, and the connecting shaft 36 sequentially passes through the first connecting hole 352 and the second connecting hole 341.

[0083] To further support the crib body, a first support frame 7 is provided below the bottom surface of the crib body 1. The first support frame 7 includes a plurality of first support pipes 71 arranged side by side on the same horizontal plane, a second support pipe 72 located at the end and connecting the plurality of first support pipes, and a third support pipe 73 vertically arranged and connected to the second support pipe 72. The bottom of the third support pipe 73 is fixedly connected to the placement block 41.

[0084] A storage basket 8 is provided below the crib body 1, and a second support frame 81 is fixedly arranged around the outside of the storage basket 8. The second support frame 81 is fixedly connected to the support rod 62. The second support frame 81 can be composed of a plurality of metal pipes.

[0085] In addition, the telescopic support in this embodiment can also be used for a storage rack. The storage rack includes a storage box and at least two sets of telescopic supports 2, and the telescopic supports 2 are arranged on the side of the storage box. The upper connecting body 34 and the top of the first pipe sleeve 3 are fixedly connected to the storage box. The structure of the storage box is not described in the drawings, and its structure can be analogous to that of the crib body 1.

[0086] Embodiment Two

[0087] As Figure 27As shown, compared with the first embodiment, in a baby crib in this embodiment, a top cover 13 is provided above the crib body 1. The top cover 13 is detachably connected to the crib body 1. The materials of the crib body 1 and the top cover 13 can be relatively stiff fabrics.

[0088] In addition, the number of the top covers 13 can be multiple, and the multiple top covers 13 can be folded.

[0089] Embodiment Three

[0090] As Figure 28 described, compared with the first embodiment, in a baby crib in this embodiment, the baffle 11 on one side of the crib body 1 is detachably connected to the adjacent baffles 11 on both sides thereof, so that the baffle 11 can be folded.

[0091] Embodiment Four

[0092] As Figure 29 shown, compared with the second embodiment, in a baby crib in this embodiment, the top cover 13 is a protruding shell, and the surface of the shell is a curved surface.

[0093] The above is only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A telescopic bracket, characterized in that: include: A vertical rod, which is a hollow tube, and a first through hole is provided on the vertical rod; A second pipe sleeve is provided with a through slot for the vertical rod to pass through, and the vertical rod passes through the through slot and can move up and down along the through slot. A plurality of first limiting holes are vertically provided on the side wall of the second pipe sleeve; A placement block is fixed in the vertical rod, and a retractable pin is installed in the placement block; a second through hole is provided on the placement block; when the pin is retracted inside the placement block, the vertical rod can move up and down along the second sleeve, and the pin passes through the second through hole and the first through hole in sequence and extends out of the first limiting hole, so that the vertical rod is fixed on the second sleeve; A plurality of support rods are used to fixedly support the second pipe sleeve.

2. A telescopic bracket according to claim 1, characterized in that: It also includes a first sleeve, a lifting member, a slider, a sliding member and a connector: The bottom of the first sleeve is fixedly connected to the vertical rod; the first sleeve is a hollow structure with an open bottom; a mounting groove is provided above the first sleeve; The lifting member is disposed in the mounting groove, and the lifting member can move up and down along the mounting groove; Two partitions are arranged in the placement block, a first placement groove is formed between the two partitions, the slider is arranged in the first placement groove, and the second through hole is located at one side of the first placement groove; the pin is fixed to the end of the slider and can extend out of the second through hole, and one side surface of the slider is arranged as a first inclined surface; The sliding member is arranged in the placement block, and the sliding member comprises a connecting block and a guide rail fixed below the connecting block; one side surface of the guide rail is arranged as a second inclined surface; One end of the connector is connected to the lifting member, and the other end is connected to the connecting block; When the lifting member moves up and down, the first inclined surface moves in contact with the second inclined surface, so that the slider moves horizontally in the first placement groove, so that the pin shaft is accommodated in the second through hole or extends from the second through hole.

3. A telescopic bracket according to claim 2, characterized in that: A second limiting plate is provided at the bottom end of the guide rail of the sliding member, and the sliding member moves upward until the limiting plate contacts the partition plate.

4. The telescopic bracket according to claim 2, characterized in that: Both ends of the connector are provided with spherical protrusions; A first receiving groove is provided on one side of the connecting block, a second receiving groove is provided on one side of the pulling member, and the spherical protrusions at both ends of the connecting body are respectively clamped in the first receiving groove and the second receiving groove.

5. The telescopic bracket according to claim 2, characterized in that: The placement block is provided with a first limit plate protruding outwardly; a first baffle is fixedly provided on one side of the placement block, the bottom of the first baffle contacts the first limit plate, and the first limit plate limits the movement of the slider and the sliding member within the placement block.

6. The telescopic bracket according to claim 1, characterized in that: A scale plate is fixedly attached to the surface of the vertical rod, and a plurality of scales are vertically arranged on the scale plate; The surface of the second sleeve is provided with a scale notch for scale display.

7. The telescopic bracket according to claim 1, characterized in that: It also includes two upper connectors, which are symmetrically arranged on the first sleeve; the upper connector is arc-shaped, and the arc-shaped opening faces upward from the first sleeve; There are two support rods, which are symmetrically arranged at the bottom of the second pipe sleeve, and the two support rods form a triangle with the ground; second mounting grooves for the support rods to be plugged and fixed are arranged on both sides of the bottom of the second pipe sleeve, and the second mounting grooves are closed to the connecting end of the second pipe sleeve.

8. The telescopic bracket according to claim 7, characterized in that: A first connecting member is provided between the two support rods; the first connecting member includes a connecting sleeve mounted on the support rod and a reinforcing rod integrally connected to the connecting sleeves on both sides; the connecting sleeve is fixedly connected to the support rod; the reinforcing rod is an arc-shaped rod, and the center of curvature of the arc-shaped rod faces the ground; a universal wheel is provided at the bottom of the support rod, and the universal wheel is detachably connected to the support rod; the universal wheel can be locked to the ground.

9. A baby crib, characterized in that: include: Bed; At least two sets of telescopic brackets according to any one of claims 2 to 8, wherein the telescopic brackets are arranged on the sides of the bed; The top of the first pipe sleeve is fixedly connected to the bed body.

10. A baby crib according to claim 9, characterized in that: A first support frame is arranged below the bottom surface of the bed, and the first support frame includes a plurality of first support tubes arranged side by side on the same horizontal plane, a second support tube located at the end and connecting the plurality of first support tubes, and a third support tube arranged vertically and connected to the second support tube; the bottom of the third support tube is fixedly connected to the placement block.

11. The baby crib according to claim 9, characterized in that: The bed body includes a surrounding baffle, and an "L"-shaped edge is arranged on the top of the baffle; a second connecting member is arranged between the upper connecting body and the edge, and the upper connecting body is fixedly connected to the second connecting member; the second connecting member is U-shaped; and the second connecting member is fixedly connected to the edge.

12. A baby crib according to claim 11, characterized in that: A first extension block is extended from the bottom of the second connecting member, and a first connecting hole is transversely penetrated in the first extension block; a second connecting hole is transversely penetrated at the top of the upper connecting body, the first extension block is inserted into the upper connecting body, and the second connecting hole is coaxial with the first connecting hole; the second connecting member and the upper connecting body are connected by a connecting shaft, and the connecting shaft passes through the first connecting hole and the second connecting hole in sequence.

13. The baby crib according to claim 11, characterized in that: The baffle plate located at one side of the bed body is detachably connected to the baffle plates adjacent to the two sides thereof, so that the baffle plates can be folded.

14. The baby crib according to claim 11, characterized in that: A top cover is arranged above the bed body; the top cover is detachably connected to the bed body.

15. A baby crib according to claim 14, characterized in that: There are multiple top covers, and the multiple top covers are foldable.

16. The baby crib according to claim 14, characterized in that: The top cover is a protruding shell, and the surface of the shell is a curved surface.

17. The baby crib according to claim 9, characterized in that: A placing basket is arranged under the bed body, and a second supporting frame is fixedly arranged around the outer side of the placing basket; the second supporting frame is fixedly connected to the supporting rod.

18. A storage rack, characterized in that: include: A storage box; and at least two sets of telescopic brackets according to any one of claims 2 to 8, wherein the telescopic brackets are arranged on the side of the storage box; The top of the first pipe sleeve is fixedly connected to the storage box.

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