A telescopic stand pipe assembly and a baby bassinet

Abstract

The application discloses a telescopic stand pipe assembly and a baby bassinet, wherein the telescopic stand pipe assembly comprises a first pipe, a cover and a second pipe, the cover comprises an upper cover part, a plug-in part and a limiting arm, the plug-in part is plugged into the first pipe from the plug-in end of the first pipe, the upper cover part is in abutment with the plug-in end of the first pipe, the plug-in part is used for plugging into the plug-in end of the first pipe, and the limiting arm is used for being in abutment with the outer wall of the first pipe; the combination of the first pipe and the cover is accommodated in the second pipe and can slide relative to the second pipe, the upper cover part and the limiting part are both in contact with the inner wall of the second pipe, the contact length of the cover and the inner wall of the second pipe in the axial direction of the first pipe can be increased, thereby more effectively preventing the deflection or deformation of the first pipe located in the second pipe, and the possibility that the direct contact of the first pipe and the second pipe causes the friction between the first pipe and the second pipe, the sliding is hindered and noise is generated is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of baby bassinets, and particularly relates to a telescopic stand pipe assembly and a baby bassinet. BACKGROUND

[0002] A baby bassinet is a convenient baby care tool, and some baby bassinets are provided with a telescopic stand pipe assembly, so that the basket body of the baby bassinet can be adjusted to different heights, thereby enabling the baby bassinet to be applied to various use scenarios such as a playpen or bedside.

[0003] The telescopic stand pipe assembly includes a first pipe and a second pipe capable of relative sliding. Since the first pipe and the second pipe are usually made of metal, in the related art, a cover body can be installed at one end of the first pipe, and the cover body can be inserted into the first pipe. When the first pipe and the second pipe slide relative to each other, the cover body can improve the stability of relative sliding. However, the connection part or the vicinity of the first pipe and the second pipe may be skewed or deformed, so there is still a high possibility that the first pipe will directly contact the second pipe, resulting in friction between the first pipe and the second pipe, hindering sliding and generating noise. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a telescopic stand pipe assembly, which is provided with a limiting part extending in the axial direction of the first pipe on the cover body. The limiting part contacts the inner wall of the second pipe, which can increase the contact length of the cover body and the inner wall of the second pipe in the axial direction of the first pipe, thereby more effectively preventing the skewing of the first pipe located inside the second pipe and further reducing the possibility that the direct contact between the first pipe and the second pipe will result in friction between the first pipe and the second pipe, hindering sliding and generating noise.

[0005] The present application also provides a baby bassinet comprising the telescopic stand pipe assembly.

[0006] The telescopic stand pipe assembly provided by the first aspect of the present application comprises a first pipe, a cover body, a second pipe, and the cover body is installed at the insertion end of the first pipe. The cover body comprises an upper cover part, an insertion part and a limiting arm. The upper cover part abuts against the insertion end of the first pipe. The insertion part is connected to the upper cover part and extends in the height direction of the cover body. The insertion part is used for inserting into the insertion end of the first pipe. The limiting arm is connected to the edge of the upper cover part and also extends in the height direction of the cover body. The limiting arm is used for abutting against the outer wall of the first pipe. The second pipe is used for sleeving the combination of the first pipe and the cover body and can slide relative to the combination. When the combination is sleeved in the second pipe, the upper cover part and the limiting arm abut against the inner wall of the second pipe.

[0007] The telescopic stand pipe assembly provided by the first aspect of the present application has at least the following beneficial effects:

[0008] In the telescopic stand pipe assembly provided by the first aspect of the present application, the cover body is provided with a limiting portion extending in the axial direction of the first pipe, and the limiting portion contacts the inner wall of the second pipe, which can increase the contact length of the cover body and the inner wall of the second pipe in the axial direction of the first pipe, and can better guide the relative sliding of the first pipe and the second pipe, thereby more effectively reducing the possibility that the direct contact of the first pipe and the second pipe causes friction between the first pipe and the second pipe to hinder the sliding and generate noise.

[0009] In some embodiments of the present application, the limiting arm is integrally formed with the upper cover portion, or the limiting arm is detachably connected to the upper cover portion.

[0010] In some embodiments of the present application, the limiting arm is provided with a protrusion, and the upper cover portion is provided with a blind hole, and the cooperation of the protrusion and the blind hole enables the limiting arm to be detachably connected to the upper cover portion.

[0011] In some embodiments of the present application, the cover body further comprises a first clamping portion, the first clamping portion is arranged on the side of the limiting arm facing the insertion portion, and the first pipe has a first clamping hole, when the cover body is installed on the first pipe, the first clamping portion is clamped into the first clamping hole from the outside of the first pipe.

[0012] In some embodiments of the present application, the thickness W1 of the first clamping portion is 1 / 4 to 3 / 4 of the thickness W2 of the limiting arm.

[0013] In some embodiments of the present application, the cover body further comprises a second clamping portion, the second clamping portion is connected to the insertion portion and protrudes outward, and the first pipe has a second clamping hole, when the cover body is installed on the first pipe, the second clamping portion is clamped into the second clamping hole from the inside of the first pipe.

[0014] In some embodiments of the present application, the cover body further comprises a resilient arm, the resilient arm extends along the height direction of the cover body, one end of the resilient arm is connected to the insertion portion and the other end is connected to the second clamping portion, and the end of the resilient arm connected to the second clamping portion has a spacing with the insertion portion, and the resilient arm can be elastically deformed to make the second clamping portion close to or away from the insertion portion.

[0015] In some embodiments of the present application, the cover body further comprises a reinforcing rib, the reinforcing rib is connected between the resilient arm and the insertion portion, and the reinforcing rib is located at the end of the resilient arm connected to the insertion portion.

[0016] In some embodiments of the present application, the height H1 of the reinforcing rib is 1 / 3 to 1 / 2 of the height H2 of the elastic arm.

[0017] In some embodiments of the present application, the second clamping portion has a gap with the limiting arm.

[0018] In some embodiments of the present application, the limiting arm has a position-avoiding groove on one side facing the insertion portion, and the second clamping portion has a gap with the inner wall of the position-avoiding groove.

[0019] In some embodiments of the present application, the first pipe is provided with an anti-extrusion portion, which is located on one side of the second clamping hole close to the insertion end and extends to the inside of the first pipe, and the anti-extrusion portion is used to abut against the second clamping portion.

[0020] The second aspect of the present application provides an infant bassinet, comprising: a basket body; the telescopic column pipe assembly provided by any one of the first aspect of the present application connected to the basket body; a latch mechanism provided on the first pipe or the second pipe, the latch mechanism having a locked state in which the first pipe and the second pipe are relatively fixed, and an unlocked state in which the first pipe and the second pipe can relatively slide.

[0021] The second aspect of the present application provides an infant bassinet, which has at least the following beneficial effects:

[0022] The infant bassinet provided by the second aspect of the present application adopts the telescopic column pipe assembly provided by the first aspect of the present application, the cover body of the telescopic column pipe assembly is provided with a limiting portion extending in the axial direction of the first pipe, the limiting portion contacts the inner wall of the second pipe, which can increase the contact length of the cover body and the inner wall of the second pipe in the axial direction of the first pipe, and can better guide the relative sliding of the first pipe and the second pipe, thereby more effectively reducing the possibility that the direct contact of the first pipe and the second pipe causes friction between the first pipe and the second pipe to hinder sliding and generate noise. The telescopic column pipe assembly provided by the first aspect of the present application is connected to the basket body, which can more stably adjust the height of the basket body and reduce the possibility of moving unsmoothly or generating noise when adjusting the height of the basket body.

[0023] In some embodiments of the present application, the first pipe has a plurality of first positioning holes, the second pipe has second positioning holes, the latching mechanism is fixed to the second pipe, the latching mechanism comprises a seat, a latch, an operating member, an elastic member and a mounting portion, the seat is mounted to the lower end of the second pipe, the latch is arranged through the second positioning holes and can be engaged with one of the plurality of first positioning holes, the operating member is at least partially accommodated in the seat and can be moved relative to the seat and drive the latch to move so as to make the latch disengage from the first positioning hole, the mounting portion is connected to the operating member, one end of the elastic member is sleeved on the mounting portion and abuts against the operating member, and the other end abuts against the seat, and in the unlocked state, the elastic member is compressed or stretched.

[0024] In some embodiments of the present application, the mounting portion comprises a plurality of wing portions arranged along the circumference, and at least two of the wing portions have clamping grooves on the sides close to the operating member.

[0025] In some embodiments of the present application, the baby basket further comprises a handle mechanism, the handle mechanism comprises a first handle tube, a second handle tube and a clamping member, the first handle tube comprises a first insertion section and a first support section connected to each other, the first insertion section has a first limiting hole, the second handle tube comprises a second insertion section and a second support section connected to each other, the second insertion section has a second limiting hole, the clamping member has a protruding portion, the first insertion section is inserted into the second insertion section, the first handle tube and the second handle tube are connected to the basket body, and the clamping member is accommodated in the interior of the first insertion section and the protruding portion is arranged through the first limiting hole and the second limiting hole.

[0026] In some embodiments of the present application, in the projection of the first handle tube in the vertical direction, the distance D1 from the center of the first limiting hole to the end of the first insertion section away from the first support section is 2 to 3 times the diameter D of the first limiting hole, and the distance D2 from the center of the first limiting hole to the center of the end of the first support section away from the first insertion section is 1 / 2 to 1 / 3 times the diameter D of the first limiting hole.

[0027] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0028] The present application will be further described below in conjunction with the drawings and embodiments, in which:

[0029] Figure 1A cross-sectional view of a telescopic column tube assembly provided for some embodiments of the first aspect of the present application;

[0030] Figure 2 for Figure 1 A cross-sectional view of the telescopic column tube assembly shown in another state;

[0031] Figure 3 for Figure 1 A perspective schematic diagram of the cover of the telescopic column tube assembly shown;

[0032] Figure 4 for Figure 3 A front view of the cover shown;

[0033] Figure 5 An exploded schematic diagram of a cover of a telescopic column tube assembly provided in some other embodiments of the first aspect of the present application;

[0034] Figure 6 A schematic perspective view of a baby bassinet provided in some embodiments of the second aspect of the present application;

[0035] Figure 7 for Figure 6 Cross-sectional view of section AA;

[0036] Figure 8 for Figure 6 Cross-sectional view of the middle BB section;

[0037] Figure 9 for Figure 6 A side view of a first tube member in the telescoping column tube assembly of the infant carrying basket is shown;

[0038] Figure 10 for Figure 6 A perspective schematic diagram of an operating member in a latch mechanism of an infant carrying basket is shown;

[0039] Figure 11 for Figure 6 Cross-sectional view of the CC section;

[0040] Figure 12 for Figure 6 A bottom view of a first handle tube in the handle mechanism of the infant carrycot is shown.

[0041] Reference numerals:

[0042] Telescopic stand pipe assembly 100, first pipe 110, plug end 111, first clamping hole 112, second clamping hole 113, anti-drop part 114, first positioning hole 115, cover 120, upper cover 121, blind hole 1211, plug part 122, limiting arm 123, first clamping part 124, second clamping part 125, elastic arm 126, limiting part 1261, reinforcing rib 127, avoidance groove 128, connecting part 129, protrusion 1291, second pipe 130, second positioning hole 131, limiting sleeve 140, limiting surface 141, basket 200, handrail frame 210, bottom plate 220, latch mechanism 300, seat 310, latch 320, guide 321, operating part 330, guide groove 331, elastic part 340, mounting part 350, clamping groove 351, wing 352, handle mechanism 400, first handle tube 410, first plug section 411, first support section 412, first limiting hole 413, second handle tube 420, second plug section 421, second support section 422, second limiting hole 423, clamping hole 424, clamping part 430, protrusion 431, bushing 440, first clamping protrusion 441, second clamping protrusion 442, guide slope 443. DETAILED DESCRIPTION

[0043] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0044] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the purpose of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0046] In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples.

[0047] Baby bassinet is a convenient baby care tool, some baby bassinets are provided with telescopic column pipe assembly 100, so that the basket body 200 of the baby bassinet can be adjusted to different heights, so that the baby bassinet can be applied to various use scenarios such as playpen or bedside.

[0048] The telescopic column pipe assembly includes a first pipe 110 and a second pipe 130 that can slide relative to each other. In the related art, a cover 120 can be installed at one end of the first pipe 110, which can be inserted into the first pipe 110. When the first pipe 110 and the second pipe 130 slide relative to each other, the flange of the cover 120 can improve the stability of relative sliding. However, the connection between the first pipe 110 and the second pipe 130 or the vicinity thereof can be skewed or deformed, so there is still a high probability that the first pipe 110 will directly contact the second pipe 130, resulting in friction between the first pipe 110 and the second pipe 130, which hinders sliding and generates noise.

[0049] Based on this, referring to Figure 1 and Figure 2 , the first aspect embodiment of the present application provides a telescopic column pipe assembly 100 including a first pipe 110, a cover 120 and a second pipe 130. The cover 120 is used to install the insertion end 111 of the first pipe 110. Referring to Figures 3 to 5 , the cover 120 includes an upper cover portion 121, an insertion portion 122 and a limiting arm 123. The insertion portion 122 is used to be inserted into the insertion end 111 of the first pipe 110. The upper cover portion 121 abuts against the insertion end 111 of the first pipe 110. The insertion portion 122 is connected to the upper cover portion 121 and extends along the height direction of the cover 120. The limiting arm 123 is connected to the edge of the upper cover portion 121 and also extends along the height direction of the cover 120. The height direction of the cover 120 is Figure 1 and Figure 2In the up and down directions shown, the limit arm 123 is used to abut against the outer wall of the first tube fitting 110; the second tube fitting 130 is used to sleeve the combination of the first tube fitting 110 and the cover body 120 and can slide relative to the combination of the first tube fitting 110 and the cover body 120. When the combination of the first tube fitting 110 and the cover body 120 is sleeved on the second tube fitting 130, the upper cover portion 121 and the limit arm 123 abut against the inner wall of the second tube fitting 130.

[0050] In the telescopic column tube assembly 100 provided by the embodiment of the first aspect of the present application, a limiting arm 123 extending axially along the first tube 110 is provided on the cover 120, and the limiting arm 123 contacts the inner wall of the second tube 130, which can increase the contact between the cover 120 and the inner wall of the second tube 130 in the axial direction of the first tube 110 (i.e. Figure 1 and Figure 2 The contact length in the up-down direction (as shown) can be increased, thereby more effectively guiding the relative sliding of the first pipe 110 and the second pipe 130, thereby more effectively reducing the possibility that the first pipe 110 and the second pipe 130 directly contact each other, causing friction between the first pipe 110 and the second pipe 130 to hinder sliding and generate noise.

[0051] It is understandable that the first tube 110 and the second tube 130 can be made of metal to ensure the supporting strength of the telescopic column tube assembly 100; the cover 120 can be made of plastic to ensure stable relative movement between the first tube 110 and the second tube 130 while reducing the friction between the cover 120 and the inner wall of the second tube 130, thereby making the relative movement of the first tube 110 and the second tube 130 smoother, reducing noise, extending the service life of the telescopic column tube assembly 100, and improving the user experience.

[0052] The connection mode between the limiting arm 123 and the upper cover 121 can be set according to actual needs. For example, in some embodiments, referring to Figure 3 and Figure 4 The limiting arm 123 and the upper cover portion 121 are integrally formed, and the connection strength between the limiting arm 123 and the upper cover portion 121 is high, which is beneficial to improving the service life of the cover body 120.

[0053] In other embodiments, referring to Figure 5 The limiting arm 123 is detachably connected to the upper cover portion 121. The thin limiting arm 123 and the upper cover portion 121 are injection molded separately and then assembled, which is beneficial to improving the yield rate of injection molding.

[0054] There are many specific detachable connection modes between the limiting arm 123 and the upper cover 121. For example, in some embodiments, referring to Figure 6The limiting arm 123 can be connected with the upper cover portion 121 through a connecting portion 129. A protrusion 1291 can be arranged on the connecting portion 129, and a blind hole 1211 can be arranged at a corresponding position of the upper cover portion 121, so that the protrusion 1291 is embedded in the blind hole 1211 to achieve detachable connection of the limiting arm 123 and the upper cover portion 121. The connecting structure of the limiting arm 123 and the upper cover portion 121 is not limited to the structure shown in the figure, and can be achieved by interference fit, buckle connection or the like. The actual requirements can be designed. Figure 6 The connecting structure of the limiting arm 123 and the upper cover portion 121 is not limited to the structure shown in the figure, and can be achieved by interference fit, buckle connection or the like. The actual requirements can be designed.

[0055] Further, referring to Figures 3 to 5 The cover 120 further comprises a first clamping portion 124 arranged on one side of the limiting arm 123 facing the plug-in portion 122. Referring to Figure 1 and Figure 2 The first pipe 110 has a first clamping hole 112. When the cover 120 is installed on the first pipe 110, the first clamping portion 124 is clamped into the first clamping hole 112 from the outside of the first pipe 110. During the process of installing the cover 120 to the plug-in end 111 of the first pipe 110, the limiting arm 123 is elastically deformed under the abutting action between the first clamping portion 124 and the outer wall of the first pipe 110, until the first clamping portion 124 reaches the first clamping hole 112. Under the elastic force of the limiting arm 123, the first clamping portion 124 is embedded in the first clamping hole 112. By arranging the first clamping portion 124 connected to the limiting arm 123 to be embedded in the first clamping hole 112 of the first pipe 110, during the movement of the first pipe 110 relative to the second pipe 130 to realize the extension and contraction of the telescopic column pipe assembly 100, the first clamping portion 124 is limited by the inner wall of the first clamping hole 112, which can reduce the possibility of the cover 120 falling off the first pipe 110 during the extension and contraction process, and improve the stability of the extension and contraction action.

[0056] It should be noted that during the process of installing the cover 120 to the plug-in end 111 of the first pipe 110, the limiting arm 123 is elastically deformed outward under the abutting action between the first clamping portion 124 and the outer wall of the first pipe 110. The thickness W1 of the first clamping portion 124 is related to the deformation amount of the limiting arm 123 during installation. The greater the thickness W1 of the first clamping portion 124, the greater the deformation amount of the limiting arm 123 during installation. The greater the deformation amount, the greater the difficulty of installation, and the higher the risk of breakage of the limiting arm 123. After the cover 120 is installed to the plug-in end 111 of the first pipe 110, the thickness W1 of the first clamping portion 124 is related to the stability of the connection between the cover 120 and the first pipe 110. The smaller the thickness W1 of the first clamping portion 124, the shorter the stroke of the first clamping portion 124 exiting the first clamping hole 112, and the easier it is to fall off the first pipe 110.

[0057] Therefore, in order to reduce the difficulty of installation, reduce the risk of breaking the limiting arm 123 during installation, and ensure the stability of the connection between the cover 120 and the first pipe 110, referring to Figure 4 , the thickness W1 of the first clamping part 124 is set to be 1 / 4 to 3 / 4 of the thickness W2 of the limiting arm 123, which can effectively control the deformation amount of the limiting arm 123 during installation, thereby reducing the difficulty of installation and the risk of breaking the limiting arm 123 during installation, and can ensure that the first clamping part 124 needs to pass through a long enough stroke to exit the first clamping hole 112, thereby ensuring the stability of the connection between the cover 120 and the first pipe 110.

[0058] Further, referring to Figures 3 to 5 , the cover 120 further comprises a second clamping part 125, which is connected to the plug-in part 122 and protrudes outward, it should be noted that the second clamping part 125 protrudes outward from the plug-in part 122, which means that when the cover 120 is installed on the first pipe 110, the second clamping part 125 extends from the plug-in part 122 to the direction of the inner wall of the first pipe 110, referring to Figure 1 and Figure 2 , the first pipe 110 has a second clamping hole 113, and when the cover 120 is installed on the first pipe 110, the second clamping part 125 is clamped into the second clamping hole 113 from the inside of the first pipe 110. The second clamping part 125 connected to the plug-in part 122 is embedded in the second clamping hole 113 of the first pipe 110, and during the movement of the first pipe 110 relative to the second pipe 130 to realize the extension and contraction of the telescopic column pipe assembly 100, the second clamping part 125 is limited by the inner wall of the second clamping hole 113, which can further reduce the possibility of the cover 120 falling off the first pipe 110 during the extension and contraction process, and further improve the stability of the extension and contraction action.

[0059] Further, referring to Figures 3 to 5 , the cover 120 further comprises an elastic arm 126, which is substantially along the height direction of the cover 120 (i.e. Figures 3 to 5The elastic arm 126 is connected to the insertion part 122 at one end and to the second clamping part 125 at the other end, and has a space between the end connected to the second clamping part 125 and the insertion part 122. The elastic arm 126 can be elastically deformed to move the second clamping part 125 closer to or farther from the insertion part 122. When the cover 120 is installed on the first pipe 110, the cover 120 is pushed to insert the insertion part 122, the elastic arm 126, and the second clamping part 125 into the first pipe 110. Under the abutting action of the second clamping part 125 and the inner wall of the first pipe 110, the elastic arm 126 is elastically deformed, the second clamping part 125 is moved closer to the insertion part 122, until the second clamping part 125 reaches the second clamping hole 113 of the first pipe 110. The elastic arm 126 pushes the second clamping part 125 into the second clamping hole 113 under the elastic force. The arrangement of the elastic arm 126 can reduce the difficulty of installing the cover 120 on the first pipe 110, thereby reducing the difficulty of installing the telescopic stand pipe assembly 100 and improving the installation efficiency.

[0060] Further, referring to Figures 3 to 5 , the cover 120 further comprises a reinforcing rib 127 connected between the elastic arm 126 and the insertion part 122. The reinforcing rib 127 is located at the end of the elastic arm 126 connected to the insertion part 122, which helps to improve the connection strength of the elastic arm 126 and the insertion part 122, reduce the possibility of breaking at the connection between the elastic arm 126 and the insertion part 122 when the elastic arm 126 is elastically deformed, and prolong the service life of the cover 120, thereby prolonging the service life of the telescopic stand pipe assembly 100.

[0061] It should be noted that the height H1 of the reinforcing rib 127 is related to the reinforcing effect. If the height H1 of the reinforcing rib 127 is too high, the deformation ability of the elastic arm 126 may be too small or even unable to elastically deform, which increases the difficulty of installing the cover 120 or even fails to complete the installation. If the height H1 of the reinforcing rib 127 is too low, the reinforcing effect may be poor, which cannot reduce the possibility of breaking at the connection between the elastic arm 126 and the insertion part 122 during installation.

[0062] Therefore, referring to Figure 4 , the height H1 of the reinforcing rib 127 is set to 1 / 3 to 1 / 2 of the height H2 of the elastic arm 126. This can ensure that the elastic arm 126 has sufficient deformation ability to reduce the difficulty of installing the cover 120, effectively reinforce the connection between the elastic arm 126 and the insertion part 122, reduce the possibility of breaking at the connection between the elastic arm 126 and the insertion part 122 during installation, and prolong the service life of the telescopic stand pipe assembly 100.

[0063] Further, referring to Figures 3 to 5The end of the elastic arm 126 connected with the second clamping part 125 is also connected with a limiting part 1261 extending along the height direction of the cover body 120 (i.e. the up-down direction shown in the figure) Figures 3 to 5 Figure 1 Figure 2 When the cover body 120 is installed on the first pipe 110, the limiting part 1261 is located inside the first pipe 110, and the limiting part 1261 can abut against the inner wall of the first pipe 110. When the combination of the first pipe 110 and the cover body 120 slides downward relative to the second pipe 130, the second clamping part 125 can abut against the upper edge of the second clamping hole 113 and has a tendency to slide out of the first pipe 110. The limiting part 1261 can prevent the second clamping part 125 from sliding out of the first pipe 110, thereby reducing the possibility of noise caused by the collision between the second clamping part 125 and the structure outside the first pipe 110, and improving the structural stability of the telescopic column pipe assembly 100.

[0064] Further, referring to Figure 4 , the second clamping part 125 and the limiting arm 123 have a gap in the transverse direction (i.e. the front-back direction shown in the figure) Figure 4 Figure 1 Figure 2 After the cover body 120 is installed on the first pipe 110 and the first pipe 110 is inserted into the second pipe 130, the limiting arm 123 will not press the second clamping part 125, thereby reducing the possibility of the second clamping part 125 being pulled out of the second clamping hole 113 due to the pressing of the limiting arm 123 on the second clamping part 125 during use, ensuring the reliability of the connection between the cover body 120 and the first pipe 110, and thereby ensuring the structural stability of the telescopic column pipe assembly 100.

[0065] Further, referring to Figures 3 to 5 , the side of the limiting arm 123 facing the insertion part 122 has an avoiding recess 128, and the second clamping part 125 and the inner wall of the avoiding recess 128 have a gap. In the case that the pipe wall of the first pipe 110 is thin, the avoiding recess 128 is provided on the limiting arm 123, which, on the premise that the length of the second clamping part 125 in the direction perpendicular to the axial direction of the first pipe 110 is sufficient to enable the second clamping part 125 to be stably clamped in the second clamping hole 113, can also provide sufficient accommodation space for the second clamping part 125, ensure that the second clamping part 125 and the limiting arm 123 have sufficient gap, thereby further reducing the possibility of the second clamping part 125 being pulled out of the second clamping hole 113 due to the pressing of the limiting arm 123 on the second clamping part 125 during use, ensuring the reliability of the connection between the cover body 120 and the first pipe 110, and thereby ensuring the structural stability of the telescopic column pipe assembly 100.

[0066] ​​​​Further, referring to Figure 1 and Figure 2 , the first pipe 110 is provided with an anti-extrusion portion 114 located at the side of the second clamping hole 113 close to the insertion end 111 and extending to the interior of the first pipe 110, which is used to abut against the second clamping portion 125. In the embodiment, the anti-extrusion portion 114 extends obliquely to the interior of the first pipe 110. If the cover 120 is to be removed from the first pipe 110, the second clamping portion 125 needs to be moved to the interior of the first pipe 110 (for example, by pressing the limiting arm 123 by the user), until the outer edge of the second clamping portion 125 reaches the inner edge of the anti-extrusion portion 114, so that the second clamping portion 125 is completely extruded from the second clamping hole 113. By providing the anti-extrusion portion 114 protruding to the interior of the first pipe 110 on the first pipe 110, the second clamping portion 125 needs to move a longer distance to be disengaged from the limiting of the second clamping hole 113, so that in actual use, the second clamping portion 125 is less likely to be completely extruded from the second clamping hole 113 when the telescopic column pipe assembly 100 is telescoped, which is beneficial to further improve the reliability of the connection between the cover 120 and the first pipe 110, thereby further improving the structural stability of the telescopic column pipe assembly 100.

[0067] Further, referring to Figure 1 and Figure 2 , the telescopic column pipe assembly 100 further comprises a limiting sleeve 140 connected to the second pipe 130 and slidable relative to the first pipe 110, the interior of the limiting sleeve 140 has a limiting surface 141 perpendicular to the axial direction of the first pipe 110 (i.e. the up-down direction shown in Figure 1 and Figure 2 ), the limiting surface 141 is located at the side of the limiting arm 123 away from the upper cover portion 121 and can abut against the limiting arm 123, the limiting sleeve 140 can prevent the first pipe 110 from being extruded from the interior of the second pipe 130, thereby improving the structural stability of the telescopic column pipe assembly 100.

[0068] Referring to Figure 6 , the second aspect embodiment of the present application provides a baby bassinet, which comprises a basket body 200, a latch mechanism 300 and the telescopic column pipe assembly 100 provided by any one of the first aspect embodiments of the present application. Specifically, the basket body 200 can comprise a handrail frame 210 and a bottom plate 220. In actual use, a cloth cover, a tent and / or other accessories can be sleeved on the handrail frame 210 and the bottom plate 220. The telescopic column pipe assembly 100 is connected to the basket body 200; the latch mechanism 300 is arranged on the first pipe 110 or the second pipe 130, and the latch mechanism 300 has a locked state in which the first pipe 110 and the second pipe 130 are relatively fixed, and an unlocked state in which the first pipe 110 and the second pipe 130 can slide relative to each other.

[0069] The second aspect embodiment of the present application provides the baby bassinet, which adopts the telescopic stand pipe assembly 100 provided by the first aspect embodiment of the present application. The cover 120 of the telescopic stand pipe assembly 100 is provided with a limiting arm 123 extending along the axial direction of the first pipe 110. The limiting arm 123 contacts the inner wall of the second pipe 130, which can increase the contact length of the cover 120 and the inner wall of the second pipe 130 in the axial direction of the first pipe 110, and can better guide the relative sliding of the first pipe and the second pipe, thereby more effectively reducing the possibility that the direct contact of the first pipe and the second pipe causes friction between the first pipe and the second pipe to hinder the sliding and generate noise. Connecting the telescopic stand pipe assembly 100 provided by the first aspect embodiment of the present application to the basket 200 can more stably adjust the height of the basket 200 and reduce the possibility of moving unsmoothly or generating noise when adjusting the height of the basket 200.

[0070] Further, referring to Figure 9 , the baby bassinet further comprises a latch mechanism 300. The first pipe 110 has a plurality of first positioning holes 115, and the second pipe 130 has a second positioning hole 131. Referring to Figure 7 and Figure 8 , the latch mechanism 300 comprises a seat body 310, a latch 320, an operating member 330, an elastic member 340, and a mounting portion 350. The seat body 310 is mounted to the lower end of the second pipe 130. The latch 320 is arranged to pass through the second positioning hole 131 and can be engaged with one of the plurality of first positioning holes 115. The operating member 330 is at least partially accommodated in the seat body 310 and can move relative to the seat body 310 and drive the latch 320 to move, so that the latch 320 is disengaged from the first positioning hole 115. Specifically, referring to Figure 7 , the latch 320 is arranged in a direction perpendicular to the axial direction of the first pipe 110. The part of the operating member 330 accommodated in the seat body 310 is provided with a guide groove 331. In the upward direction, the guide groove 331 is inclined away from the first pipe 110. The latch 320 is provided with a guide portion 321 accommodated in the guide groove 331. The mounting portion 350 is connected to the operating member 330. The side of the mounting portion 350 close to the operating member 330 is provided with a clamping groove 351. One end of the elastic member 340 is clamped in the clamping groove 351, and the other end abuts against the seat body 310. In the unlocked state, the elastic member 340 is compressed or stretched.

[0071] Referring to Figure 7 , in the locked state, the latch 320 passes through the second positioning hole 131 and one of the first positioning holes 115 at the same time. In the process of switching to the unlocked state, when the operating member 330 moves upward under the action of external force, the guide portion 321 moves along the guide groove 331, so that the latch 320 is driven by the operating member 330 to move away from the first pipe 110 (i.e. in the direction of the arrow A in the figure). When the latch 320 is disengaged from the first positioning hole 115, the operating member 330 is no longer driven by the latch 320, and the elastic member 340 is released to drive the operating member 330 to move downward under the action of the elastic force of the elastic member 340, so that the latch 320 is engaged with another first positioning hole 115. Figure 7The right side) moves, exits the first positioning hole 115, at which time the first tube 110 can slide up and down relative to the second tube 130, thereby achieving the effect of height adjustment of the baby bassinet. When the latch 320 is in the unlocked state, the elastic member 340 is compressed. When the external force disappears, the operating member 330 is reset under the action of the elastic member 340, and the latch 320 moves towards the first tube 110 (i.e. Figure 7 The left side) moves until it is reset to the position in the locked state. The mounting portion 350 is provided on the operating member 330, and the clamping groove 351 is provided on the mounting portion 350, and one end of the elastic member 340 is clamped in the clamping groove 351, which can reduce the possibility of the elastic member 340 falling off the mounting portion 350 during elastic deformation of the elastic member 340, thereby improving the structural stability of the baby bassinet. It should be noted that the elastic member 340 can also be stretched in the unlocked state. In the present embodiment, the mounting portion 350 has a structure with a substantially cross-sectional cross shape and includes four wing portions 352, and the clamping groove 351 is provided on the lower side of two opposite wing portions 352. In other embodiments, the mounting portion 350 can have other structures and include fewer than four or more than four wing portions 352, and the clamping groove 351 can be provided on all wing portions 352 or several of them, and the present application is not limited thereto.

[0072] Further, referring to Figure 6 and Figure 11 , the baby bassinet further comprises a handle structure 400, which comprises a first handle tube 410, a second handle tube 420 and a clamping member 430. The first handle tube 410 comprises a first insertion section 411 and a first support section 412 connected to each other, and the first insertion section 411 has a first limiting hole 413. The second handle tube 420 comprises a second insertion section 421 and a second support section 422 connected to each other, and the second insertion section 421 has a second limiting hole 423. The clamping member 430 has a protruding portion 431, the first insertion section 411 is inserted into the second insertion section 421, and the first handle tube 410 and the second handle tube 420 are both connected to the basket body 200. Specifically, the handle structure 400 is located above the basket body 200, the telescopic column tube assembly 100 is located below the basket body 200, the clamping member 430 is accommodated inside the first insertion section 411, and the protruding portion 431 is provided in the first limiting hole 413 and the second limiting hole 423, so as to achieve the installation and fixation of the first handle tube 410 and the second handle tube 420, which is simple in structure and convenient for manufacturing and installation.

[0073] Referring to Figure 12The distance D1 from the center of the first limiting hole 413 to the end of the first support section 412 away from the first plug-in section 411 is 2 to 3 times the diameter D of the first limiting hole 413 in the projection of the first handle tube 410 in the vertical direction, and the distance D2 from the center of the first limiting hole 413 to the center of the end of the first support section 412 away from the first plug-in section 411 is 1 / 2 to 1 / 3 times the diameter D of the first limiting hole 413, which is beneficial to optimize the stress at the connection between the first handle tube 410 and the second handle tube 420, improve the reliability of the connection between the first handle tube 410 and the second handle tube 420, and thus improve the structural stability of the baby bassinet.

[0074] Further, referring to Figure 6 and Figure 11 The handle structure 400 further includes a sleeve 440, which is sleeved on the outside of the second plug-in section 421 and covers the joint between the first plug-in section 411 and the second plug-in section 421 and the protruding portion 431. When a user holds the sleeve 440 to lift the baby bassinet, the user will not touch the joint between the first plug-in section 411 and the second plug-in section 421 and the protruding portion 431, a better holding feeling is obtained, and the sleeve 440 can strengthen the connection between the first plug-in section 411 and the second plug-in section 421, further improving the stability of the connection between the first plug-in section 411 and the second plug-in section 421.

[0075] During installation, the sleeve 440 can be first sleeved on the second handle tube 420 so that the second plug-in section 421 is located inside the sleeve 440, and then the first plug-in section 411 is plugged into the second plug-in section 421. In order to realize the relative fixation between the sleeve 440 and the second handle tube 420, the inner wall of the sleeve 440 is provided with a clamping protrusion protruding into the inside of the sleeve 440, which is used for clamping with the second handle tube 420.

[0076] Specifically, in some embodiments, referring to Figure 11 , the inner wall of the sleeve 440 is provided with a first clamping protrusion 441 and a second clamping protrusion 442, the second handle tube 420 has a clamping hole 424, the first clamping protrusion 441 is clamped on the inner wall of the clamping hole 424, and the second clamping protrusion 442 abuts against the end of the second plug-in section 421 away from the second support section 422, so as to realize the relative fixation between the sleeve 440 and the second handle tube 420. The first clamping protrusion 441 and the second clamping protrusion 442 are arranged on opposite sides of the sleeve 440, which can make the stress of the second handle tube 420 more balanced, thereby ensuring the stability of the connection between the sleeve 440 and the second handle tube 420.

[0077] Further, referring to Figure 11 , the first clamping protrusion 441 has a guide inclined surface 443, which is inclined along the plug-in direction of the second handle tube 420 (i.e. Figure 11(from left to right as shown), the guide slope 443 is inclined toward the interior of the bushing 440. During the process of inserting the second handle tube 420 into the bushing 440, the outer wall of the second handle tube 420 contacts the first engaging protrusion 441 and moves relative to the first engaging protrusion 441. The portion of the wall of the second handle tube 420 in contact with the first engaging protrusion 441 and the bushing 440 deform in a direction away from each other until the entire first engaging protrusion 441 reaches the interior of the engaging hole 424. The second handle tube 420 and the bushing 440 return to their original state. The guide slope 443 can make the relative movement of the second handle tube 420 and the bushing 440 smoother, reducing the difficulty of installation.

[0078] Further, refer to Figure 11 , in the opposite direction of the plugging direction of the second handle tube 420 (ie Figure 11 (as shown from right to left), the second engaging protrusion 442 is inclined toward the interior of the bushing 440, and the end of the second engaging protrusion 442 away from the inner wall of the bushing 440 abuts against the end of the second insertion section 421 away from the second support section 422. Compared to setting the extension direction of the second engaging protrusion 442 perpendicular to the insertion direction of the second handle tube 420, setting the second engaging protrusion 442 inclined toward the interior of the bushing 440 can effectively improve the connection strength between the second engaging protrusion 442 and the inner wall of the bushing 440, optimize the force applied to the second engaging protrusion 442, thereby reducing the possibility of the second engaging protrusion 442 being broken by the abutting force of the second handle tube 420, improving the structural stability of the handle mechanism 400, and extending the service life of the handle mechanism 400.

[0079] It is understandable that the clamping protrusions provided on the inner wall of the bushing 440 are not limited to Figure 11 In the embodiment shown, only one clamping protrusion may be provided, and a corresponding clamping hole may be provided on the second handle tube 420, so that the second handle tube 420 and the bushing 440 can be limited in the left and right directions only by the cooperation of one clamping protrusion and one clamping hole. Alternatively, more than two clamping protrusions may be provided to further improve the stability of the connection between the second handle tube 420 and the bushing 440. The shape of the clamping protrusion is also not limited to Figure 11 The solutions shown can be designed according to actual needs.

[0080] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A telescopic column tube assembly, characterized in that: include: a first pipe fitting; The cover body is used to be installed on the plug-in end of the first pipe fitting, and the cover body includes an upper cover part, a plug-in part and a limiting arm. The upper cover part abuts against the plug-in end of the first pipe fitting, the plug-in part is connected to the upper cover part and extends along the height direction of the cover body, the plug-in part is used to be plugged into the plug-in end of the first pipe fitting, the limiting arm is connected to the edge of the upper cover part and also extends along the height direction of the cover body, and the limiting arm is used to abut against the outer wall of the first pipe fitting; the cover body also includes a second clamping part and an elastic arm, and the second clamping part is connected The first pipe has a second clamping hole on the plug-in portion and protrudes outward. When the cover is installed on the first pipe, the second clamping portion is clamped into the second clamping hole from the inside of the first pipe; the elastic arm extends along the height direction of the cover, one end of the elastic arm is connected to the plug-in portion and the other end is connected to the second clamping portion. There is a gap between the end of the elastic arm connected to the second clamping portion and the plug-in portion, and the elastic arm can be elastically deformed to make the second clamping portion move closer to or away from the plug-in portion. The second pipe is used to sleeve the combination of the first pipe and the cover and can slide relative to the combination. When the combination is sleeved on the second pipe, the upper cover and the limiting arm abut against the inner wall of the second pipe.

2. The telescopic column tube assembly according to claim 1, characterized in that: The limiting arm is integrally formed with the upper cover, or the limiting arm is detachably connected to the upper cover.

3. The telescopic column tube assembly according to claim 2, characterized in that: The limiting arm is provided with a protrusion, and the upper cover is provided with a blind hole. The cooperation between the protrusion and the blind hole enables the limiting arm to be detachably connected to the upper cover.

4. The telescopic column tube assembly according to claim 1, characterized in that: The cover body also includes a first clamping portion, which is arranged on the side of the limiting arm facing the plug-in portion. The first pipe has a first clamping hole. When the cover body is installed on the first pipe, the first clamping portion is clamped into the first clamping hole from the outside of the first pipe.

5. The telescopic column tube assembly according to claim 4, characterized in that: The thickness W1 of the first clamping portion is 1 / 4 to 3 / 4 of the thickness W2 of the limiting arm.

6. The telescopic column tube assembly according to claim 1, characterized in that: The cover body further includes a reinforcing rib connected between the elastic arm and the plug-in portion, and the reinforcing rib is located at the end portion of the elastic arm connected to the plug-in portion.

7. The telescopic column tube assembly according to claim 6, characterized in that: The height H1 of the reinforcing rib is 1 / 3 to 1 / 2 of the height H2 of the elastic arm.

8. The telescopic column tube assembly according to claim 1, characterized in that: There is a gap between the second clamping portion and the limiting arm.

9. The telescopic column tube assembly according to claim 8, characterized in that: The limiting arm has a avoiding groove on one side facing the plug-in portion, and a gap is formed between the second clamping portion and the inner wall of the avoiding groove.

10. The telescopic column tube assembly according to claim 1, characterized in that: The first pipe is provided with an anti-slip portion, which is located on a side of the second clamping hole close to the plug end and extends toward the interior of the first pipe, and is used to abut against the second clamping portion.

11. A baby sleeping basket, characterized in that: include: basket body; The telescopic column tube assembly according to any one of claims 1 to 10, connected to the basket; The latch mechanism is provided on the first pipe or the second pipe, and the latch mechanism has a locking state in which the first pipe and the second pipe are relatively fixed, and an unlocking state in which the first pipe and the second pipe can slide relative to each other.

12. The baby sleeping basket according to claim 11, characterized in that: The first tube has a plurality of first positioning holes, the second tube has a second positioning hole, the latch mechanism is fixed to the second tube, the latch mechanism includes a base, a latch, an operating member, an elastic member and a mounting portion, the base is mounted on the lower end of the second tube, the latch is passed through the second positioning hole and can be engaged with one of the plurality of first positioning holes, the operating member is at least partially accommodated in the base, and can move relative to the base and drive the latch to move so that the latch is disengaged from the first positioning hole, the mounting portion is connected to the operating member, one end of the elastic member is sleeved on the mounting portion and abuts the operating member, and the other end abuts the base. In the unlocked state, the elastic member is compressed or stretched.

13. The baby sleeping basket according to claim 12, characterized in that: The mounting portion includes a plurality of wings arranged along the circumferential direction, and at least two opposing wings among the wings have a snap-fitting groove on one side close to the operating member, and one end of the elastic member is snap-fitted to the snap-fitting groove.

14. The baby sleeping basket according to claim 11, characterized in that: The baby sleeping basket also includes a handle mechanism, which includes a first handle tube, a second handle tube and a clamping piece. The first handle tube includes a first plug-in section and a first support section connected to each other, and the first plug-in section has a first limiting hole. The second handle tube includes a second plug-in section and a second support section connected to each other, and the second plug-in section has a second limiting hole. The clamping piece has a protrusion. The first plug-in section is plugged into the second plug-in section. The first handle tube and the second handle tube are both connected to the basket body. The clamping piece is accommodated inside the first plug-in section and the protrusion is passed through the first limiting hole and the second limiting hole.

15. The baby sleeping basket according to claim 14, characterized in that: In the vertical projection of the first handle tube, the distance D1 from the center of the first limiting hole to the end of the first plug-in section away from the first support section is 2 to 3 times the diameter D of the first limiting hole, and the distance D2 from the center of the first limiting hole to the center of the end of the first support section away from the first plug-in section is 12 to 13 times the diameter D of the first limiting hole.

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