Telescopic device and child bed

Abstract

The utility model discloses a telescopic device and a child bed. The telescopic device comprises a mounting base, a pipe assembly and a sleeve. The pipe assembly comprises a first pipe and a second pipe, one end of the second pipe is connected to the mounting base, the other end of the second pipe is connected into the first pipe through an adjusting structure, and the sleeve comprises a sleeving pipe section and a limiting pipe section which are distributed in the axial direction of the first pipe; the end, away from the limiting pipe section, of the socketed pipe section is connected to the mounting base, and the socketed pipe section and the first pipe are arranged in the radial direction of the first pipe; the inner wall of the limiting pipe section is attached to the outer wall of the first pipe so as to limit the relative position of the first pipe and the sleeve in the radial direction of the first pipe. The first pipe and the sleeve do not shake, the second pipe and the sleeve do not shake, and correspondingly, the first pipe and the second pipe can be kept relatively stable in the radial direction of the first pipe; the overall stability is effectively improved, the use safety of the telescopic device is guaranteed, and the service life is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of children's beds, in particular to a telescopic device and a children's bed. BACKGROUND

[0002] The telescopic device can adjust the length to meet the use of various situations, for example, the height of the children's bed can be adjusted through the telescopic device. In the prior art, the telescopic device is often realized by moving the inner tube in the outer tube to adjust the total length of the two tube segments. However, the inner tube and the outer tube will sway during adjustment or use, the connection stability of the inner tube and the outer tube is low, and the service life is reduced.

[0003] Therefore, it is necessary to improve the prior art. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems in the prior art, and provide a telescopic device and a children's bed.

[0005] According to an aspect of the present application, the present application provides a telescopic device, comprising a mounting seat, a tube assembly and a sleeve; the tube assembly comprises a first tube and a second tube, one end of the second tube is connected to the mounting seat, the other end is connected to the inside of the first tube through an adjusting structure, and the adjusting structure is used to adjust the relative position of the first tube and the second tube in the axial direction of the first tube; the sleeve comprises a sleeve pipe segment and a limiting pipe segment distributed in the axial direction of the first tube; wherein one end of the sleeve pipe segment away from the limiting pipe segment is connected to the mounting seat, and in the radial direction of the first tube, the sleeve pipe segment is arranged separately from the first tube; the inner wall of the limiting pipe segment is in close contact with the outer wall of the first tube to limit the relative position of the first tube and the sleeve in the radial direction of the first tube.

[0006] In one embodiment, the adjusting structure comprises a clamping through slot, a connecting block and a clamping block; the clamping through slot is arrayed on the first tube in the axial direction of the first tube; the connecting block is arranged at the end of the second tube inside the first tube, and the surface of the connecting block facing the inner wall of the first tube is provided with a mounting hole; the clamping block is connected to the mounting hole through an elastic element, and the elastic element is used to resist the clamping block to make the one end of the clamping block away from the second tube selectively enter or exit the clamping through slot.

[0007] In one embodiment, a limiting structure is arranged between the clamping block and the connecting block to limit the moving distance of the clamping block in the mounting hole; the limiting structure comprises a limiting rod, a limiting hole and a limiting through slot; the limiting hole is arranged on the connecting block, and the limiting through slot is arranged on the clamping block; when the clamping block is inserted into the mounting hole, the limiting hole and the limiting through slot are in communication, the limiting rod is fixed in the limiting hole, and the limiting rod passes through the limiting through slot, and the limiting through slot is used to limit the displacement of the clamping block.

[0008] In one embodiment, the connecting block is arranged inside the sleeve, and the opposite part of the sleeve relative to the clamping block is provided with a pressing structure; the pressing structure comprises a mounting through slot, an elastic cantilever and a pressing block, one end of the elastic cantilever is connected with the slot wall of the mounting through slot, the other end is connected with the pressing block, and the pressing block is arranged opposite to the clamping block.

[0009] In one embodiment, a fixing member is further included, the fixing member is provided with a connecting hole, the connecting hole is divided into a first hole section and a second hole section along the axial direction of the connecting hole, the cross-sectional area of the first hole section is larger than that of the second hole section; the end of the first pipe located inside the sleeve is connected to the first hole section through a fixing structure to limit the relative position of the first pipe and the first hole section in the radial direction of the first pipe; the second pipe is inserted into the second hole section to limit the relative position of the second pipe and the second hole section in the radial direction of the second pipe.

[0010] In one embodiment, the side wall of the sleeve is provided with a sliding through slot extending in the axial direction of the sleeve; the fixing member comprises a fixing part, a connecting part and a mounting part; the connecting hole is arranged on the fixing part, and the surface of the fixing part facing the inner wall of the sleeve abuts against the inner wall of the sleeve; the connecting part is connected between the fixing part and the mounting part, the connecting part slides in the sliding through slot, and the slot wall of the sliding through slot in the circumferential direction of the sleeve abuts against the connecting part to limit the relative position of the fixing member and the sleeve in the circumferential direction of the sleeve.

[0011] In one embodiment, the hole wall of the second hole section is provided with a stop protrusion, the side wall of the second pipe is provided with a stop groove extending in the axial direction of the second pipe, and the stop protrusion is inserted into the stop groove to limit the relative position of the second pipe and the fixing member in the circumferential direction of the second pipe.

[0012] In one embodiment, the fixing structure comprises a fixing rod, a fixing hole and a fixing groove, the fixing hole is arranged on the fixing part, the fixing groove is arranged on the first pipe; when the first pipe is inserted into the first hole section, the fixing hole and the fixing groove are in communication, the fixing rod is fixedly arranged in the fixing hole, and the fixing rod is arranged in the fixing groove, the groove wall of the fixing groove abuts against the fixing rod, so as to limit the relative position of the first pipe and the fixing part in the radial direction and the axial direction of the first pipe.

[0013] In one embodiment, the part of the first pipe located in the first hole section is provided with an elastic sheet, when the first pipe is inserted into the first hole section, the elastic sheet is pressed against the hole wall of the first hole section.

[0014] According to another aspect of the present application, a child bed is provided, comprising the telescopic device as described in any one of the preceding embodiments.

[0015] The present application has the following beneficial effects: the sleeve pipe and the second pipe are connected with the mounting seat, the mounting seat limits the relative position between the sleeve pipe and the second pipe, the sleeve pipe and the second pipe are relatively static, the limiting pipe section in the sleeve pipe is attached to the outer wall of the first pipe, the relative position of the first pipe and the sleeve pipe in the radial direction of the first pipe is limited, the first pipe and the sleeve pipe cannot shake, the second pipe and the sleeve pipe cannot shake, and the first pipe and the second pipe can also be relatively stable in the radial direction of the first pipe; the overall stability is effectively improved, the safety of the telescopic device during use is ensured, and the service life is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The technical solutions and other beneficial effects of the present application will be apparent from the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

[0017] Figure 1 is a schematic view of a telescopic device provided by an embodiment of the present application.

[0018] Figure 2 is Figure 1 a sectional view of

[0019] Figure 3 is Figure 2 an enlarged view of A in

[0020] Figure 4 is Figure 2 an enlarged view of B in

[0021] Figure 5 is Figure 2 an enlarged view of C in

[0022] Figure 6 is Figure 2 an enlarged view of D in

[0023] Figure 7 is Figure 1 an exploded view.

[0024] Figure 8 is a schematic view of a sleeve provided by an embodiment of the present application.

[0025] Figure 9 is a sectional view of a fixing member provided by an embodiment of the present application.

[0026] in the figure:

[0027] 10, mounting seat;

[0028] 20, pipe assembly; 21, first pipe; 211, elastic sheet; 22, second pipe; 221, stop groove;

[0029] 30, adjusting structure; 31, clamping through groove; 32, connecting block; 321, mounting hole; 33, clamping block; 34, elastic element;

[0030] 40, sleeve; 41, sleeving pipe segment; 42, limiting pipe segment; 43, sliding through groove;

[0031] 50, limiting structure; 51, limiting rod; 52, limiting hole; 53, limiting through groove;

[0032] 60, pressing structure; 61, mounting through groove; 62, elastic cantilever; 63, pressing block;

[0033] 70, fixing member; 71, fixing part; 711, connecting hole; 7111, first hole segment; 7112, second hole segment; 71121, stop protrusion; 72, connecting part; 73, mounting part;

[0034] 80, fixing structure; 81, fixing rod; 82, fixing hole; 83, fixing groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person skilled in the art without any creative work, fall within the protection scope of the present application.

[0036] In the description of the present application, it should be noted that unless specifically defined and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium, or the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The telescopic device and the child bed in the present application will be described in detail below in combination with the drawings and specific embodiments.

[0038] In the prior art, the inner tube and the outer tube will sway, the connection stability of the inner tube and the outer tube is low, and the service life is reduced.

[0039] In order to solve the above technical problems, the present application provides a telescopic device, which comprises a mounting seat, a pipe assembly and a sleeve pipe; the pipe assembly comprises a first pipe and a second pipe, one end of the second pipe is connected to the mounting seat, the other end is connected to the inside of the first pipe through an adjusting structure, and the adjusting structure is used to adjust the relative position of the first pipe and the second pipe in the axial direction of the first pipe; the sleeve pipe comprises a sleeve pipe segment and a limiting pipe segment which are distributed in the axial direction of the first pipe; wherein, one end of the sleeve pipe segment away from the limiting pipe segment is connected to the mounting seat, and in the radial direction of the first pipe, the sleeve pipe segment is arranged separately from the first pipe; the inner wall of the limiting pipe segment is in close contact with the outer wall of the first pipe to limit the relative position of the first pipe and the sleeve pipe in the radial direction of the first pipe.

[0040] The sleeve pipe and the second pipe are both connected with the mounting seat, the mounting seat limits the relative position between the sleeve pipe and the second pipe, the sleeve pipe and the second pipe are relatively static, and the limiting pipe segment in the sleeve pipe is in close contact with the outer wall of the first pipe, which can limit the relative position of the first pipe and the sleeve pipe in the radial direction of the first pipe, the first pipe and the sleeve pipe will not sway, the second pipe and the sleeve pipe will not sway, and correspondingly, the first pipe and the second pipe can also maintain relative stability in the radial direction of the first pipe; the overall stability is effectively improved, the safety of the telescopic device during use is ensured, and the service life is effectively improved. The following will be described in detail.

[0041] Referring to Figures 1-3 , Figure 6 and Figure 7In an embodiment, the telescopic device comprises a mounting base 10, a pipe assembly 20, and a sleeve pipe 40; the pipe assembly 20 comprises a first pipe 21 and a second pipe 22, one end of the second pipe 22 is connected to the mounting base 10, and the other end is connected to the inside of the first pipe 21 through an adjusting structure 30, the adjusting structure 30 is used to adjust the relative position of the first pipe 21 and the second pipe 22 in the axial direction of the first pipe 21; the sleeve pipe 40 comprises a sleeve pipe segment 41 and a limiting pipe segment 42 which are distributed in the axial direction of the first pipe 21; wherein, one end of the sleeve pipe segment 41 away from the limiting pipe segment 42 is connected to the mounting base 10, and in the radial direction of the first pipe 21, the sleeve pipe segment 41 is arranged separately from the first pipe 21; the inner wall of the limiting pipe segment 42 is in contact with the outer wall of the first pipe 21 to limit the relative position of the first pipe 21 and the sleeve pipe 40 in the radial direction of the first pipe 21.

[0042] The sleeve pipe 40 and the second pipe 22 are both connected to the mounting base 10, that is, the relative position between the sleeve pipe 40 and the second pipe 22 is limited by the mounting base 10, the sleeve pipe 40 and the second pipe 22 are relatively static, and the limiting pipe segment 42 in the sleeve pipe 40 is in contact with the outer wall of the first pipe 21, which can limit the relative position of the first pipe 21 and the sleeve pipe 40 in the radial direction of the first pipe 21, that is, when the pipe assembly 20 is length-adjusted (the first pipe 21 moves along the axial direction of the first pipe 21 relative to the second pipe 22), the first pipe 21 and the sleeve pipe 40 will not shake, and the second pipe 22 and the sleeve pipe 40 will not shake either, and correspondingly, the first pipe 21 and the second pipe 22 can also remain relatively stable in the radial direction of the first pipe 21; this effectively improves the overall stability and ensures the safety of the telescopic device during use; when the first pipe 21 shakes relative to the second pipe 22, the first pipe 21 is easily bent after being subjected to an external force in the radial direction of the first pipe 21, which is not conducive to improving the service life.

[0043] It should be noted that the first pipe 21 is stabilized in the limiting position between the sleeve pipe 40 through the limiting pipe segment 42, and in the radial direction of the first pipe 21, the sleeve pipe segment 41 is arranged separately from the first pipe 21, that is, the part of the first pipe 21 located in the sleeve pipe segment 41 is not in contact with the sleeve pipe segment 41; in this way, when the relative position of the first pipe 21 and the second pipe 22 in the axial direction of the first pipe 21 is adjusted, the first pipe 21 will also move relative to the sleeve pipe 40, and the non-contact can reduce the friction between the first pipe 21 and the sleeve pipe 40, which can both ensure the stability (without shaking) between the two through the limiting pipe segment 42 and facilitate the adjustment operation of the first pipe 21.

[0044] In addition, the adjusting structure 30 is used to adjust the relative position of the first pipe 21 and the second pipe 22 in the axial direction of the first pipe 21, that is, to adjust the length of the pipe assembly 20 as a whole to adapt to different use requirements.

[0045] In some embodiments, the second pipe 22 and the mounting base 10, the sleeve 40 and the mounting base 10 can be fixed by screws, and the relative positions of the two pipes in the axial and radial directions of the first pipe 21 can be defined, which is convenient to operate and simple and reliable in connection.

[0046] Referring to Figure 3 In an embodiment, the adjusting structure 30 includes clamping grooves 31, a connecting block 32 and a clamping block 33. The clamping grooves 31 are arranged on the first pipe 21 in the axial direction of the first pipe 21. The connecting block 32 is arranged at the end of the second pipe 22 inside the first pipe 21, and the surface of the connecting block 32 facing the inner wall of the first pipe 21 is provided with a mounting hole 321. The clamping block 33 is connected to the mounting hole 321 by an elastic element 34, and the elastic element 34 is used to abut against the clamping block 33, so that the end of the clamping block 33 away from the second pipe 22 can selectively enter and exit the clamping groove 31.

[0047] Under the action of external pressure, the clamping block 33 moves in the direction towards the second pipe 22 and presses the elastic element 34, and the elastic element 34 is compressed under the force until the clamping block 33 moves out of the clamping groove 31. At this time, the relative positions of the first pipe 21 and the second pipe 22 in the axial direction of the first pipe 21 are adjusted (the remaining clamping grooves 31 are moved to be opposite to the clamping block 33, that is, the overall length of the pipe assembly 20 is changed according to the use requirement). Under the action of the reaction force of the elastic element 34, the clamping block 33 moves in the direction away from the second pipe 22 until the clamping block 33 is clamped in another clamping groove 31 (the clamping groove 31 opposite to the clamping block 33 after adjustment). While the length of the pipe assembly 20 is adjusted, the relative positions of the first pipe 21 and the second pipe 22 in the axial direction of the first pipe 21 are also defined, that is, the first pipe 21 and the second pipe 22 can be kept relatively stationary, the stability of the structure is improved, the structure is simple, and the adjustment is convenient.

[0048] At the same time, the clamping block 33 is arranged at the end of the second pipe 22 inside the first pipe 21. Under the same adjustment range (the range in which the overall length of the pipe assembly 20 can be adjusted), the clamping block 33 arranged at the end of the second pipe 22 can effectively reduce the use length of the second pipe 22 and reduce the production cost.

[0049] It should be noted that in some embodiments, the elastic element 34 can be a compression spring, and the clamping block 33 presses the compression spring under the action of external pressure. After the relative positions of the first pipe 21 and the second pipe 22 in the axial direction of the first pipe 21 are adjusted, the clamping block 33 is reset under the action of the compression spring until it is clamped in the adjusted clamping groove 31. The compression spring has low cost and is reliable in use. One end of the compression spring is connected to the bottom of the mounting hole 321, and the other end is connected to the surface of the clamping block 33 facing the bottom of the mounting hole 321.

[0050] In some embodiments, the bottom of the mounting hole 321 is provided with a snap-fit ​​protrusion, and the compression spring can be sleeved on the snap-fit ​​protrusion to ensure the stability of the compression spring; correspondingly, the surface of the snap-fit ​​block 33 facing the bottom of the mounting hole 321 is provided with a receiving groove, and the compression spring is inserted into the receiving groove to further improve the stability of the compression spring, thereby ensuring the smooth movement of the snap-fit ​​block 33 in and out of the snap-fit ​​through groove 31 and its stability when snapped in the snap-fit ​​through groove 31.

[0051] See Figure 3 In one embodiment, a limiting structure 50 is provided between the snap-fit ​​block 33 and the connecting block 32 to limit the movement distance of the snap-fit ​​block 33 in the mounting hole 321. The limiting structure 50 includes a limiting rod 51, a limiting hole 52, and a limiting through groove 53. The limiting hole 52 is disposed in the connecting block 32, and the limiting through groove 53 is disposed in the snap-fit ​​block 33. When the snap-fit ​​block 33 is inserted into the mounting hole 321, the limiting hole 52 and the limiting through groove 53 are connected, the limiting rod 51 is fixed in the limiting hole 52, and the limiting rod 51 passes through the limiting through groove 53. The limiting through groove 53 is used to limit the displacement of the snap-fit ​​block 33.

[0052] The limiting rod 51 is fixed in the limiting hole 52 and passes through the limiting groove 53. During the movement of the locking block 33 (the movement process is the length adjustment process of the pipe assembly 20, see the above embodiment for details), the limiting rod 51 will abut against the groove wall of the limiting groove 53, thereby limiting the displacement of the locking block 33; the lateral dimension of the limiting groove 53 can be controlled ( Figure 3 (Viewpoint, the same below) to control the displacement of the snap-fit ​​block 33, that is, to control the length of the snap-fit ​​block 33 snapping into the snap-fit ​​slot 31.

[0053] It should be noted that if the length of the snap-fit ​​block 33 in the snap-fit ​​groove 31 is too long, the force required to press the snap-fit ​​block 33 to move it away from the snap-fit ​​groove 31 will increase, which is not conducive to the convenience of adjusting the length of the pipe assembly 20. If the length of the snap-fit ​​block 33 in the snap-fit ​​groove 31 is too short, the connection between the first pipe 21 and the second pipe 22 will be unstable, and the snap-fit ​​block 33 will easily retract into the mounting hole 321 under the action of external force, that is, the snap-fit ​​block 33 will leave the snap-fit ​​groove 31. Therefore, the appropriate lateral dimension of the limiting groove 53 should be determined according to the usage scenario of the pipe assembly 20, which will not be elaborated here.

[0054] See Figure 1 and Figure 3 In one embodiment, the connecting block 32 is disposed inside the sleeve 40, and the portion of the sleeve 40 opposite to the snap-fit ​​block 33 is provided with a pressing structure 60; the pressing structure 60 includes a mounting groove 61, an elastic cantilever 62 and a pressing block 63, one end of the elastic cantilever 62 is connected to the groove wall of the mounting groove 61, and the other end is connected to the pressing block 63, and the pressing block 63 is disposed opposite to the snap-fit ​​block 33.

[0055] The connecting block 32 is arranged inside the sleeve 40, i.e. the clamping block 33 is arranged inside the sleeve 40, the sleeve 40 has a protective effect on the connecting block 32, avoiding the clamping block 33 from retracting into the mounting hole 321 due to external influences, effectively improving the stability of the connection between the first pipe 21 and the second pipe 22, and ensuring the safety of the telescopic device in use.

[0056] The pressing block 63 is arranged opposite to the clamping block 33, and when adjusting the length of the pipe assembly 20, only the length adjustment operation can be realized by pressing the pressing block 63, which is simple to operate.

[0057] In actual use, the pressing block 63 is pressed, and the pressing block 63 in turn applies a force to the clamping block 33, the clamping block 33 retracts into the mounting hole 321, i.e. the clamping block 33 leaves the clamping through slot 31, the first pipe 21 is adjusted to the required length (the length of the pipe assembly 20), and the clamping block 33 is inserted into another clamping through slot 31 under the action of the elastic element 34, completing the length adjustment operation.

[0058] It should be noted that after the pressing block 63 is pressed, the force applied to the pressing block 63 is removed, and the pressing block 63 is reset under the action of the elastic cantilever 62, which will not affect the subsequent clamping of the clamping block 33 and the clamping through slot 31, and the structure is simple.

[0059] Referring to Figure 2 , Figure 5 and Figure 9 , in an embodiment, the telescopic device further comprises a fixing member 70, the fixing member 70 is provided with a connecting hole 711, the connecting hole 711 is divided into a first hole section 7111 and a second hole section 7112 along the axial direction of the connecting hole 711, the cross-sectional area of the first hole section 7111 is greater than that of the second hole section 7112; the end of the first pipe 21 located inside the sleeve 40 is connected to the first hole section 7111 through the fixing structure 80, so as to limit the relative position of the first pipe 21 and the first hole section 7111 in the radial direction of the first pipe 21; the second pipe 22 is inserted into the second hole section 7112, so as to limit the relative position of the second pipe 22 and the second hole section 7112 in the radial direction of the second pipe 22.

[0060] Through the arrangement of the connecting hole 711, the relative position of the end of the first pipe 21 located inside the sleeve 40 and the second pipe 22 in the radial direction of the first pipe 21 can be limited, further ensuring the stability between the first pipe 21 and the second pipe 22, and improving the use strength of the telescopic device.

[0061] Figure 2 , Figure 7 and Figure 8In an embodiment, the side wall of the sleeve 40 is provided with a sliding passage 43 extending in the axial direction of the sleeve 40; the fixing member 70 comprises a fixing portion 71, a connecting portion 72 and a mounting portion 73; the connecting hole 711 is arranged on the fixing portion 71, and the surface of the fixing portion 71 facing the inner wall of the sleeve 40 abuts against the inner wall of the sleeve 40; the connecting portion 72 is connected between the fixing portion 71 and the mounting portion 73, and the connecting portion 72 is slidably connected to the sliding passage 43, and the groove wall of the sliding passage 43 in the circumferential direction of the sleeve 40 abuts against the connecting portion 72 to limit the relative position of the fixing member 70 and the sleeve 40 in the circumferential direction of the sleeve 40.

[0062] The fixing portion 71 is arranged between the sleeve 40 and the first pipe 21, that is, the end portion of the first pipe 21 located in the sleeve 40 is limited in position in the radial direction of the first pipe 21 by the fixing portion 71, so that the end portion of the first pipe 21 is stable and cannot shake relative to the sleeve 40; similarly, the second pipe 22 cannot shake relative to the sleeve 40, and the overall stability is effectively improved.

[0063] In addition, the connecting portion 72 is slidably connected in the sliding passage 43, so that the displacement amount of the first pipe 21 in the axial direction of the first pipe 21 (that is, the length of the sliding passage 43 in the axial direction of the sleeve 40) is limited, and the first pipe 21 and the second pipe 22 are prevented from being separated and affecting use; at the same time, the connecting portion 72 abuts against the groove wall of the sliding passage 43, so that the connecting portion 72 (the fixing member 70) is prevented from rotating relative to the sleeve 40, and the first pipe 21 is further prevented from rotating, and the stability of the structure is further improved.

[0064] In some embodiments, the mounting portion 73 can be connected with other components, for example, in a children's bed, the telescopic device can be used as a bed leg of the children's bed, and the mounting portion 73 can be used for connecting a fence of the children's bed, and the like, but is not limited thereto.

[0065] Figure 2 、 Figure 7 and Figure 9 In an embodiment, the hole wall of the second hole segment 7112 is provided with a limiting protrusion 71121, the side wall of the second pipe 22 is provided with a limiting groove 221 extending in the axial direction of the second pipe 22, and the limiting protrusion 71121 is inserted into the limiting groove 221 to limit the relative position of the second pipe 22 and the fixing member 70 in the circumferential direction of the second pipe 22.

[0066] The limiting protrusion 71121 can move in the limiting groove 221 in the axial direction of the second pipe 22, and does not affect the movement of the fixing member 70 (the first pipe 21) in the axial direction of the second pipe 22, and can also prevent the second pipe 22 from rotating relative to the fixing member 70, and the stability of the structure is improved.

[0067] In some embodiments, the first pipe 21 is connected with the sliding slot 43 through the connection part 72, so that the fixing part 70 cannot rotate relative to the sleeve pipe 40, and the second pipe 22 cannot rotate relative to the fixing part 70, thereby realizing that the second pipe 22 cannot rotate relative to the sleeve pipe 40, and the relative position between the clamping block 33 arranged on the second pipe 22 and the pressing block 63 arranged on the sleeve pipe 40 can be ensured, which is beneficial to the length adjustment operation of the pipe assembly 20. In addition, the first pipe 21 is connected with the fixing part 70 through the fixing structure 80, that is, the first pipe 21 cannot rotate relative to the fixing part 70, and correspondingly, the first pipe 21 cannot rotate relative to the second pipe 22, so that the clamping block 33 and the clamping slot 31 are arranged relative to each other, and when the length of the pipe assembly 20 is adjusted, the clamping block 33 can smoothly enter and exit the clamping slot 31, and the efficiency of length adjustment is improved.

[0068] Referring to Figure 5 and Figure 9 In an embodiment, the fixing structure 80 includes a fixing rod 81, a fixing hole 82 and a fixing slot 83, the fixing hole 82 is arranged on the fixing part 71, and the fixing slot 83 is arranged on the first pipe 21; when the first pipe 21 is inserted into the first hole section 7111, the fixing hole 82 and the fixing slot 83 are communicated, the fixing rod 81 is fixedly arranged in the fixing hole 82, and the fixing rod 81 is arranged in the fixing slot 83, and the slot wall of the fixing slot 83 abuts against the fixing rod 81, so as to limit the relative position of the first pipe 21 and the fixing part 70 in the radial direction and the axial direction of the first pipe 21.

[0069] The fixing rod 81 is arranged in the fixing slot 83, the slot wall of the fixing slot 83 abuts against the fixing rod 81, and the fixing rod 81 is arranged in the fixing hole 82, so that the relative static state of the first pipe 21 and the fixing part 70 can be ensured, and the shaking between the two is avoided, and the stability of the structure is effectively improved. In this way, the structure is simple, and the assembly efficiency is high.

[0070] Referring to Figure 4 and Figure 7 In an embodiment, the first pipe 21 is arranged with an elastic sheet 211 at the part located in the first hole section 7111, and when the first pipe 21 is inserted into the first hole section 7111, the elastic sheet 211 is pressed against the hole wall of the first hole section 7111.

[0071] The elasticity sheet 211 is pressed on the hole wall of the first hole section 7111, which can ensure the tightness of the first pipe 21 and the first hole section 7111, and further improve the stability of the first pipe 21. During installation, the first pipe 21 is inserted towards the first hole section 7111 until the elasticity sheet 211 abuts against the end portion in the axial direction (the axial direction of the first hole section 7111) of the first hole section 7111, at this time, the elasticity sheet 211 is pressed, and the first pipe 21 is continuously inserted towards the first hole section 7111, the elasticity sheet 211 enters the first hole section 7111, and the elasticity sheet 211 has a restoring tendency, so that the elasticity sheet 211 abuts against the hole wall of the first hole section 7111 under the action of its elasticity, which effectively improves the tightness of the connection between the first pipe 21 and the fixing member 70.

[0072] In another aspect, the application also relates to a child bed comprising any of the foregoing telescopic devices.

[0073] By limiting the relative position between the sleeve 40 and the second pipe 22 through the mounting seat 10, the sleeve 40 and the second pipe 22 are relatively static, and the limiting pipe section 42 in the sleeve 40 is attached to the outer wall of the first pipe 21, which can limit the relative position of the first pipe 21 and the sleeve 40 in the radial direction of the first pipe 21, so that the first pipe 21 and the sleeve 40 cannot shake, the second pipe 22 and the sleeve 40 cannot shake, and correspondingly, the first pipe 21 and the second pipe 22 can also be relatively stable in the radial direction of the first pipe 21, which effectively improves the stability of the whole, ensures the safety during use of the telescopic device, and effectively improves the service life.

[0074] In various embodiments of the application, the terms or descriptions of different embodiments are consistent and can be mutually referenced if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship. In the application, "at least one" means one or more, and "multiple" means two or more.

[0075] It can be understood that various numbers involved in the embodiments of the application are only used for differentiation for convenience of description, and do not limit the scope of the embodiments of the application. The size of the serial number of the above processes does not mean the execution order, and the execution order of the processes should be determined according to its function and inherent logic.

[0076] The telescopic device and the child bed provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples in this paper; the above embodiment descriptions are only used to help understand the present application and its core ideas; meanwhile, for those skilled in the art, according to the ideas of the present application, the specific implementation manners and application ranges will be changed, and the above descriptions should not be understood as the limitation of the present application.

Claims

1. A telescoping device, characterized by, The device comprises: a mounting base; a pipe assembly comprising a first pipe and a second pipe, one end of the second pipe being connected to the mounting base, the other end being connected to the inside of the first pipe through an adjusting structure, the adjusting structure being used to adjust the relative position of the first pipe and the second pipe in the axial direction of the first pipe; and a sleeve pipe comprising a sleeve pipe segment and a limiting pipe segment distributed in the axial direction of the first pipe; wherein one end of the sleeve pipe segment away from the limiting pipe segment is connected to the mounting base, and in the radial direction of the first pipe, the sleeve pipe segment is arranged separately from the first pipe; the inner wall of the limiting pipe segment is in contact with the outer wall of the first pipe to limit the relative position of the first pipe and the sleeve pipe in the radial direction of the first pipe.

2. The telescopic device according to claim 1, wherein the adjusting structure comprises a clamping through slot, a connecting block and a clamping block; the clamping through slot is arranged in the axial direction of the first pipe; the connecting block is arranged at the end of the second pipe inside the first pipe, and the surface of the connecting block facing the inner wall of the first pipe is provided with a mounting hole; the clamping block is connected to the mounting hole through an elastic element, and the elastic element is used to resist the clamping block to make the one end of the clamping block away from the second pipe selectively enter and exit the clamping through slot.

3. The telescopic device according to claim 2, wherein a limiting structure is arranged between the clamping block and the connecting block to limit the moving distance of the clamping block in the mounting hole; the limiting structure comprises a limiting rod, a limiting hole and a limiting through slot; the limiting hole is arranged in the connecting block, and the limiting through slot is arranged in the clamping block; when the clamping block is inserted into the mounting hole, the limiting hole and the limiting through slot are in communication, the limiting rod is fixed in the limiting hole, and the limiting rod passes through the limiting through slot, and the limiting through slot is used to limit the displacement of the clamping block.

4. The telescopic device according to claim 2, wherein the connecting block is arranged inside the sleeve pipe, and the part of the sleeve pipe opposite to the clamping block is provided with a pressing structure; the pressing structure comprises a mounting through slot, an elastic cantilever and a pressing block, one end of the elastic cantilever is connected to the slot wall of the mounting through slot, the other end is connected to the pressing block, and the pressing block is arranged opposite to the clamping block.

5. The telescopic device according to claim 1, wherein it further comprises a fixing member provided with a connecting hole, the connecting hole is divided into a first hole segment and a second hole segment in the axial direction of the connecting hole, the cross-sectional area of the first hole segment is larger than that of the second hole segment; the end of the first pipe inside the sleeve pipe is connected to the first hole segment through a fixing structure to limit the relative position of the first pipe and the first hole segment in the radial direction of the first pipe; the second pipe is inserted into the second hole segment to limit the relative position of the second pipe and the second hole segment in the radial direction of the second pipe.

6. The telescopic device according to claim 5, wherein The side wall of the sleeve is provided with a sliding passage extending axially along the sleeve; the fixing member comprises a fixing portion, a connecting portion and a mounting portion; The connecting hole is arranged on the fixing portion, and a surface of the fixing portion facing the inner wall of the sleeve abuts against the inner wall of the sleeve; The connecting portion is connected between the fixing portion and the mounting portion, and the connecting portion is slidably connected to the sliding passage, and a groove wall of the sliding passage in the circumferential direction of the sleeve abuts against the connecting portion to limit the relative position of the fixing member and the sleeve in the circumferential direction of the sleeve.

7. The telescopic device according to claim 5, wherein The hole wall of the second hole section is provided with a stopper protrusion, and the side wall of the second tube is provided with a stopper groove extending axially along the second tube, and the stopper protrusion is inserted into the stopper groove to limit the relative position of the second tube and the fixing member in the circumferential direction of the second tube.

8. The telescopic device according to claim 6, wherein The fixing structure comprises a fixing rod, a fixing hole and a fixing groove, the fixing hole is arranged on the fixing portion, and the fixing groove is arranged on the first tube; When the first tube is inserted into the first hole section, the fixing hole and the fixing groove are in communication, the fixing rod is fixedly arranged in the fixing hole, and the fixing rod is arranged in the fixing groove, and a groove wall of the fixing groove abuts against the fixing rod to limit the relative position of the first tube and the fixing member in the radial direction and the axial direction of the first tube.

9. The telescopic device according to claim 8, wherein The part of the first tube located in the first hole section is provided with an elastic sheet, and when the first tube is inserted into the first hole section, the elastic sheet is pressed against the hole wall of the first hole section.

10. A child's bed characterised in that, The telescopic device comprises the telescopic device according to any one of claims 1 to 9.

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