Support arm mounting assembly and bed

Abstract

The utility model relates to the field of beds, and discloses a corbel mounting component and a bed, which can be used for conveniently mounting a corbel on a stand column and adjusting the height according to self requirements. The hanging device comprises a stand column, the stand column is provided with hanging holes and a limiting part, the limiting part extends in the extending direction of the stand column, and a plurality of hanging holes are formed in the extending direction of the limiting part; and the supporting arm comprises a limiting piece and a hook, the hook can be hung and buckled into the hanging hole, the limiting piece can slide on the limiting part, and when the supporting arm moves in the direction away from the hanging hole, the limiting piece can abut against the inner wall of the limiting part.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bed, especially a supporting arm mounting assembly and bed. BACKGROUND

[0002] In recent years, as a new type of furniture, dormitory bed is specially designed for school dormitories, factory staff dormitories and temporary residences of construction sites, etc. Its biggest feature is high flexibility and adaptability. With the continuous progress of science and technology and the continuous pursuit of people for living quality, the dormitory bed with the bed on the top and the desk below is gradually becoming a popular trend because of its unique advantages of saving space and providing independent learning space. This design ingeniously integrates the learning and resting areas, greatly improving the space utilization efficiency.

[0003] With the increasing trend of the proportion of contemporary young people whose height exceeds 1.8 meters, the traditional desk height cannot meet their needs. Therefore, it is particularly important to provide a more friendly experience for people of different heights. The personalized storage design should consider the actual needs of each student, allowing unlimited increase of storage partitions (shelves or cabinets) between two adjacent columns. At the same time, the adjustability of the table top should also meet the needs of students whose height exceeds 1.8 meters. The height of the traditional desk is usually between 750-760 mm, but this is no longer suitable for everyone.

[0004] However, the existing dormitory bed design has fixed positions for bookshelves and other hanging components, lacking the possibility of personalized adjustment, and cannot meet the needs of different users. In addition, the installation and disassembly process of these components is also relatively cumbersome, bringing many inconveniences to users. SUMMARY

[0005] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a supporting arm mounting assembly, which can conveniently install the supporting arm on the column and adjust the height according to the needs.

[0006] The utility model also provides a bed with the above-mentioned supporting arm mounting assembly.

[0007] On the one hand, according to the supporting arm mounting assembly of the utility model embodiment, it comprises:

[0008] The column is provided with a hanging hole and a limiting part, the limiting part is arranged along the extension direction of the column, and the hanging hole is provided with a plurality of holes along the extension direction of the limiting part.

[0009] The supporting arm comprises a limiting part and a hook, the hook can be hung into the hanging hole, the limiting part can slide on the limiting part, and when the supporting arm moves away from the hanging hole, the limiting part can abut against the inner wall of the limiting part.

[0010] According to some embodiments of the present application, the limiting part is a socket provided on the stand, the supporting arm comprises a body, the hook and the limiting part are provided on the end of the body close to the stand, the limiting part comprises an extension and a first abutting part which are sequentially extended from the body, after the hook is hung into the hook hole, the extension and the first abutting part are inserted into the limiting part, when the supporting arm moves away from the hook hole, the first abutting part can abut against the wall inside the stand.

[0011] According to some embodiments of the present application, the limiting part further comprises a second abutting part, the second abutting part is provided on the end of the body and connected with the extension, after the hook is hung into the hook hole, the second abutting part abuts against the wall on which the hook hole is provided on the outside of the stand;

[0012] The first abutting part and the second abutting part are perpendicular to the extension.

[0013] According to some embodiments of the present application, the width of the limiting part is suitable for the width of the limiting part.

[0014] According to some embodiments of the present application, the cross section of the stand is L-shaped, T-shaped or cross-shaped, the hook hole and the limiting part are provided on the wall of the recessed part of the stand.

[0015] According to some embodiments of the present application, the stand is provided with an inner groove, the inner groove is provided with a first side wall and a second side wall, the hook hole is provided on the first side wall, the limiting part is a first sliding groove provided on the second side wall, the supporting arm comprises a body, the hook and the limiting part are provided on the end of the body close to the stand, the limiting part comprises a third abutting part which extends along the direction intersecting the extension direction of the supporting arm, when the hook is hung into the hook hole, the limiting part is provided in the limiting part, when the supporting arm moves away from the hook hole, the limiting part can abut against the inner wall of the limiting part.

[0016] According to some embodiments of the present application, the outside of the stand is provided with a third side wall and a fourth side wall, the hook hole is provided on the third side wall, the limiting part is a second sliding groove provided on the fourth side wall, the supporting arm comprises a body, the hook and the limiting part are provided on the end of the body close to the stand, the limiting part comprises an extension and a fourth abutting part which are sequentially extended from the body, after the hook is hung into the hook hole, the fourth abutting part is provided in the limiting part, when the supporting arm moves away from the hook hole, the fourth abutting part can abut against the inner wall of the limiting part.

[0017] According to some embodiments of the utility model, the limiting piece further includes a fifth abutting part, the fifth abutting part is arranged at the end of the body and is connected with the elongated part, after the hook is hung and buckled into the hanging hole, the fifth abutting part abuts the wall surface on which the hanging hole is arranged on the outside of the stand column,

[0018] The fourth abutting part and the fifth abutting part are both perpendicular to the elongated part.

[0019] According to some embodiments of the utility model, the supporting arm further includes:

[0020] The supporting plate, the limiting piece and the hook are arranged at the end of the supporting plate.

[0021] The baffle is connected with the supporting plate and is in L shape as a whole.

[0022] On the other hand, the bed according to the embodiments of the utility model includes the supporting arm mounting assembly according to the above embodiments of the utility model.

[0023] The embodiments of the utility model have at least the following beneficial effects:

[0024] First, the limiting piece is inserted into the limiting part, part of the structure of the limiting piece is arranged inside the stand column, after the hook is hung and buckled into the hanging hole, the supporting arm is hung on the stand column, and the limiting piece is deeply arranged inside the stand column; the hanging piece is arranged on the supporting arms on both sides, so that the supporting arm and the hanging piece form a whole, and the hanging piece can be arranged on the stand column; when the position of the hanging piece needs to be adjusted, the hook is detached from the hanging hole, the supporting arm or the hanging piece is pulled away from the stand column, the limiting piece abuts the wall surface inside the stand column, preventing the supporting arm or the hanging piece from moving away from the stand column, the limiting piece limits the supporting arm, preventing the hanging piece from completely separating from the stand column, so that the hanging piece needs to be repositioned before being installed again; the limiting piece slides along the extension direction of the limiting part, so that the hanging piece can be connected to the hanging holes at different positions, different hanging pieces are arranged at different heights, so that the height of the hanging piece can be adjusted to adapt to the living habits of the user, improve the quality of life, and avoid interference between different hanging pieces

[0025] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0027] Figure 1 It is a structure schematic view before installation of the supporting arm mounting assembly of the first embodiment of the utility model embodiment;

[0028] Figure 2 It is the structure schematic diagram of the first embodiment of the utility model embodiment arm mounting assembly after installation;

[0029] Figure 3 It is the structure schematic diagram of the first embodiment of the utility model embodiment arm mounting assembly after installation of the hanging piece;

[0030] Figure 4 It is the structure schematic diagram of the first embodiment of the utility model embodiment arm;

[0031] Figure 5 It is the structure schematic diagram of the second embodiment of the utility model embodiment arm mounting assembly before installation;

[0032] Figure 6 It is the structure schematic diagram of the second embodiment of the utility model embodiment arm mounting assembly after installation;

[0033] Figure 7 It is the structure schematic diagram of the second embodiment of the utility model embodiment arm mounting assembly in sliding state;

[0034] Figure 8 It is the structure schematic diagram of the second embodiment of the utility model embodiment arm mounting assembly after installation of the hanging piece;

[0035] Figure 9 It is the structure schematic diagram of the third embodiment of the utility model embodiment arm mounting assembly before installation;

[0036] Figure 10 It is the structure schematic diagram of the third embodiment of the utility model embodiment arm mounting assembly after installation;

[0037] Figure 11 It is the structure schematic diagram of the third embodiment of the utility model embodiment arm mounting assembly in sliding state;

[0038] Figure 12 It is the structure schematic diagram of the third embodiment of the utility model embodiment arm mounting assembly after installation of the hanging piece;

[0039] Reference signs:

[0040] Stand 100, hanging hole 110, limiting portion 120, camber surface 130;

[0041] Arm 200, limiting piece 210, extension 211, first abutment 212, second abutment 213, hook 220, support plate 230, baffle 240, third abutment 250, extension 260, fourth abutment 270, fifth abutment 280;

[0042] Hanging piece 300. DETAILED DESCRIPTION

[0043] The following will describe several embodiments of the present application, including the corresponding embodiments of the drawings. It should be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present application, and should not be understood as limiting the scope of protection of the present application.

[0044] The following will describe the concept, specific structure and technical effects of the present application in conjunction with the embodiments and drawings, in order to fully understand the purpose, scheme and effect of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0045] It should be noted that, unless otherwise explicitly limited, when a certain feature is referred to as "fixed", "connected", "installed" on another feature, it can be directly fixed, connected on another feature, or indirectly fixed, connected on another feature. The words "fixed", "connected", "installed" and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0046] It should be noted that the description of the orientation or position relationship of "up", "down", "left", "right", "top", "bottom", "front", "back", "inside", "outside" and the like used in the present application is based on the orientation or position relationship of the drawings or embodiments, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0047] It should be noted that the term "and / or" used in the present application includes any combination of one or more related listed items, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. is not included in the number, above, below, within, etc. is understood to include the number.

[0048] It should be noted that in the present application, if the first, second is described only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0049] It should be noted that, unless otherwise explicitly limited, all technical and scientific terms used in the present application have the same meaning as understood by those skilled in the art. The terms used in the specification of the present application are only used to describe the specific embodiments, and are not intended to limit the present application.

[0050] Reference Figures 1-12The utility model discloses a first aspect basic embodiment provides a kind of supporting arm mounting assembly, comprising:

[0051] Stand 100 is equipped with hanging hole 110 and limiting portion 120, limiting portion 120 is extended along the extension direction of stand 100 and is arranged, and hanging hole 110 is equipped with multiple along the extension direction of limiting portion 120;

[0052] Supporting arm 200 includes limiting piece 210 and hook 220, hook 220 can be hung and buckled into hanging hole 110, limiting piece 210 can slide in limiting portion 120, when supporting arm 200 moves towards the direction away from hanging hole 110, limiting piece 210 can abut the inner wall of limiting portion 120---

[0053] According to the embodiment of the utility model, by thus setting, can achieve at least as follows some effects, first limiting piece 210 is inserted into limiting portion 120, make part of structure of limiting piece 210 be placed in the inside of stand 100, after hook 220 is hung and buckled into hanging hole 110, supporting arm 200 is hung on stand 100, and limiting piece 210 is arranged in limiting portion 120 inside;Install hanging piece 300 on the supporting arm 200 of both sides, make supporting arm 200 and hanging piece 300 cooperate to form a whole, so that hanging piece 300 can be installed on stand 100;When the position of hanging piece 300 needs to be adjusted, hook 220 is detached on hanging hole 110, supporting arm 200 or hanging piece 300 is extracted towards the direction away from stand 100, limiting piece 210 can abut the inner wall of limiting portion 120, prevent supporting arm 200 or hanging piece 300 from continuing to move towards the direction away from stand 100, limiting piece 210 plays a limiting role to supporting arm 200, prevent hanging piece 300 from completely separating from stand 100, and hanging piece 300 can be installed again without needing to reposition;By the sliding of limiting piece 210 along the extension direction of limiting portion 120, make hanging piece 300 can dock the hanging hole 110 of different position, and different hanging piece 300 is installed at different height, so that the height of hanging piece 300 can be adjusted correspondingly, to adapt to the living habit of user, improve the quality of life, avoid the interference between different hanging piece 300.

[0054] It needs to be explained that hanging piece 300 can be shelf, desktop, blackboard, baffle 240, storage box and other commonly used household appliances.

[0055] It should be noted that the hook 220 is provided with a hanging groove which can be hung and buckled into the limiting portion 120 to complete positioning. The hanging groove is located at the bottom of the hook 220, and the hook 220 can be moved in the direction of approaching the column 100 to be inserted into the limiting portion 120, and the hanging groove can be hung and buckled into the limiting portion 120 to complete positioning. In the assembly process, after the limiting piece 210 is moved to the required height in the sliding groove, the hook 220 is driven to move in the direction of the limiting portion 120, so that the hook 220 enters the limiting portion 120, and then the hook 220 is moved downward to make the hanging groove buckle into the limiting portion 120 to complete the positioning connection. At this time, the supporting arm 200 is buckled on the column 100. When it is necessary to replace the supporting arm 200 and the height of the layer plate, the supporting arm 200 is first lifted upward, so that the hanging groove is separated from the hanging hole 110, and then the supporting arm 200 is moved in the opposite direction until the hook 220 is separated from the hanging hole 110. The supporting arm 200 is driven to move to the required position along the extension direction of the sliding groove, and the hook 220 is installed into the hanging hole 110 by the above method again.

[0056] It can be understood that the above-mentioned way of inserting the hook 220 into the limiting portion 120 does not limit the linear movement of the supporting arm 200 in the up-down direction. This way of hanging the groove into the limiting portion 120 facilitates the disassembly and assembly of the supporting arm 200.

[0057] Reference Figures 1-4 According to the first embodiment of the limiting portion 120, the limiting portion 120 is a hanging hole provided on the column 100, and the supporting arm 200 includes a body. The hook 220 and the limiting piece 210 are both provided on the end of the body close to the column 100. The limiting piece 210 includes an extension portion 211 and a first abutting portion 212 which are sequentially extended from the body. After the hook 220 is hung and buckled into the hanging hole 110, the extension portion 211 and the first abutting portion 212 are both inserted into the limiting portion 120. When the supporting arm 200 moves in the direction away from the hanging hole 110, the first abutting portion 212 can abut against the wall surface inside the column 100. The extension portion 211 is an extended part of the end. During the process of hanging and buckling the hook 220 into the hook 220, the extension portion 211 can penetrate into the limiting portion 120 in the direction of the limiting portion 120. The extension portion 211 abuts against the inner wall of the limiting portion 120, which limits the rotation of the supporting arm 200 in the left-right direction. When it is necessary to replace the position of the hanging piece 300, the extension portion 211 moves in the direction away from the limiting portion 120, and the first abutting portion 212 abuts against the inner wall inside the column 100. The first abutting portion 212 plays a limiting role and can prevent the supporting arm 200 from completely separating.

[0058] It should be noted that the column 100 is a profile structure as a whole, which is a strip-shaped structure with an inner cavity. The position of the inner cavity of the column 100 is the inside of the column 100, and the position of the outer edge of the profile of the column 100 is the outside of the column 100.

[0059] Based on the first embodiment of the limiting part 120, the limiting part 210 further comprises a second abutting part 213, which is arranged at the end of the body and connected with the extending part 211. After the hook 220 is hung into the hanging hole 110, the second abutting part 213 abuts against the wall surface of the standing column 100 outside the hanging hole 110.

[0060] The first abutting part 212 and the second abutting part 213 are both perpendicular to the extending part 211.

[0061] In this arrangement, the second abutting part 213 can abut against the wall surface outside the standing column 100, and the second abutting part 213 and the standing column 100 are in surface contact, which can increase the contact area between the supporting arm 200 and the standing column 100, improve the stress capacity of the supporting arm 200, and further improve the stability of the structure of the supporting arm 200.

[0062] Based on the first embodiment of the limiting part 120, the width of the limiting part 210 is suitable for the width of the limiting part 120. The side wall of the limiting part 210 can abut against the inner wall of the limiting part 120, which limits the supporting arm 200, and in combination with the hook 220 hung into the hanging hole 110, limits the rotation of the supporting arm 200 in the left and right directions, and improves the stability of the installation structure of the supporting arm 200.

[0063] The width of the limiting part 210 and the width of the limiting part 120 can be understood as the length perpendicular to the extending direction of the standing column 100, which can be referred to the drawings.

[0064] Based on the first embodiment of the limiting part 120, the hanging hole 110 and the limiting part 120 are both arranged on the same wall surface outside the standing column 100. This facilitates the insertion of the hook 220 into the hanging hole 110 and the insertion of the limiting part 210 into the limiting part 120.

[0065] Based on the first embodiment of the limiting part 120, the cross section of the standing column 100 is L-shaped, and the hanging hole 110 and the limiting part 120 are both arranged on the wall surface inside the L-shaped standing column 100.

[0066] Based on the first embodiment of the limiting part 120, the side of the standing column 100 away from the limiting part 120 is provided with an arc surface 130. The L-shaped standing column 100 is generally used as a corner standing column 100 of a bed and is arranged at a corner position, which can prevent scratching of personnel when the standing column 100 is collided.

[0067] Further, the cross section of the standing column 100 can be L-shaped, T-shaped, or cross-shaped as a whole, and the limiting part 120 and the hanging hole 110 are arranged on the wall surface of the recessed part as shown in the L-shaped standing column 100. Two groups of limiting parts 120 and hanging holes 110 can be arranged on the T-shaped standing column 100, and four groups of limiting parts 120 and hanging holes 110 can be arranged on the cross-shaped standing column 100.

[0068] Reference Figures 5-8According to the second embodiment of the limiting piece 210, the stand 100 is provided with an inner groove, the inner groove is provided with a first side wall and a second side wall, the hanging hole 110 is arranged on the first side wall, the limiting part 120 is a first sliding groove arranged on the second side wall, the bracket arm 200 comprises a body, the hook 220 and the limiting piece 210 are arranged on the end of the body close to the stand 100, the limiting piece 210 comprises a third abutting part 250 extending along the direction intersecting the extension direction of the bracket arm 200, when the hook 220 is hung into the hanging hole 110, the limiting piece 210 is arranged in the limiting part 120, when the bracket arm 200 moves towards the direction away from the hanging hole 110, the limiting piece 210 can abut against the inner wall of the limiting part 120. The cross section of the stand 100 can be L-shaped, T-shaped or cross-shaped, the inner groove is part of the recessed part in the above shape, the recessed part forms the first side wall and the second side wall; the hanging hole 110 and the limiting part 120 are arranged on different side walls, the bracket arm 200 hangs the hook 220 on the hanging hole 110 on the first side wall towards the direction close to the stand 100; when it is needed to adjust the height of the hanging piece 300, the hook 220 is separated from the hanging hole 110, the bracket arm 200 moves towards the direction away from the stand 100, the limiting piece 210 abuts against the inner wall of the first sliding groove, so that the hanging piece 300 cannot completely separate from the stand 100.

[0069] Reference Figures 9-12 According to the third embodiment of the limiting piece 210, the outer side of the stand 100 is provided with a third side wall and a fourth side wall, the hanging hole 110 is arranged on the third side wall, the limiting part 120 is a second sliding groove arranged on the fourth side wall, the bracket arm 200 comprises a body, the hook 220 and the limiting piece 210 are arranged on the end of the body close to the stand 100, the limiting piece 210 comprises an elongated part 260 and a fourth abutting part 270 extending from the body in sequence, after the hook 220 is hung into the hanging hole 110, the fourth abutting part 270 is arranged in the limiting part 120, when the bracket arm 200 moves towards the direction away from the hanging hole 110, the fourth abutting part 270 can abut against the inner wall of the limiting part 120. The third side wall and the fourth side wall are two adjacent side wall surfaces on the stand 100, the hanging hole 110 is arranged on one wall surface, the second sliding groove is arranged on the other wall surface, the hanging hole 110 and the limiting part 120 are arranged on different side walls, the bracket arm 200 hangs the hook 220 on the hanging hole 110 on the first side wall towards the direction close to the stand 100; when it is needed to adjust the height of the hanging piece 300, the hook 220 is separated from the hanging hole 110, the bracket arm 200 moves towards the direction away from the stand 100, the limiting piece 210 abuts against the inner wall of the second sliding groove, so that the hanging piece 300 cannot completely separate from the stand 100.

[0070] Based on the third embodiment of the limiting piece 210, the limiting piece 210 further comprises a fifth abutting part 280, which is arranged at the end of the body and connected with the elongated part 260. After the hook 220 is hung into the hanging hole 110, the fifth abutting part 280 abuts against the wall surface of the column 100 outside the hanging hole 110. The fourth abutting part 270 and the fifth abutting part 280 are both perpendicular to the elongated part. The fifth abutting part 280 can abut against the wall surface of the column 100 outside, and the fifth abutting part 280 and the column 100 are in surface contact, which can increase the contact area between the supporting arm 200 and the column 100, improve the stress capacity of the supporting arm 200, and further improve the stability of the structure of the supporting arm 200.

[0071] In some embodiments, a plurality of hooks 220 are arranged along the extension direction of the column 100. By arranging a plurality of hooks 220, i.e. arranging a plurality of mounting and connecting structures of the supporting arm 200, the stability of the mounting of the supporting arm 200 is increased.

[0072] Correspondingly, the column 100 is provided with a plurality of mounting wall surfaces, each of which is provided with a limiting part 120 and a hanging hole 110.

[0073] In some embodiments, the supporting arm 200 further comprises:

[0074] A supporting plate 230, the limiting piece 210 and the hook 220 are arranged at the end of the supporting plate 230.

[0075] A baffle plate 240, which is connected with the supporting plate 230 and has an overall L shape.

[0076] In this arrangement, the supporting plate 230 is used to place articles, and the baffle plate 240 is used to limit the articles to be placed between two supporting arms 200, thereby playing a supporting role.

[0077] In some embodiments, the supporting plate 230 is provided with a mounting hole. The mounting hole is used to threadedly connect a fixed layer plate or other components with the supporting plate 230, so as to fix the supporting plate 230 on the supporting arm 200.

[0078] It should be noted that the terms such as “one embodiment”, “some embodiments”, “basic embodiment”, “extended embodiment” and the like can be used in the present specification to describe several embodiments of the present application. The specific features, structures, materials or characteristics in several embodiments can be combined in accordance with the principles and purposes of the present application.

[0079] The utility model discloses should not be limited to the above embodiment, as long as it reaches the technical effect of the utility model with the same or equivalent means, the change, modification, equivalent replacement and equivalent modification etc. of these embodiments within the spirit and principles disclosed in the utility model without departing from the principles and purposes of the utility model, all should be included in the range of the utility model disclosed protection, should be considered to belong to the protection scope of the utility model.

Claims

1. A boom mounting assembly characterized by, The utility model relates to a kind of supporting arm and column, including: Column (100) is equipped with hanging hole (110) and limiting part (120), the limiting part (120) is extended along the extension direction of the column (100) and is equipped with multiple along the extension direction of the limiting part (120); Supporting arm (200) includes limiting piece (210) and hook (220), the hook (220) can be hung into the hanging hole (110), the limiting piece (210) can slide in the limiting part (120), when the supporting arm (200) moves away from the direction of the hanging hole (110), the limiting piece (210) can abut the inner wall of the limiting part (120).

2. The arm mount assembly of claim 1, wherein: The limiting part (120) is a jack on the column (100), the supporting arm (200) includes body, the hook (220) and the limiting piece (210) are all set on the end of the body close to the column (100), the limiting piece (210) includes by body sequentially extending out extension (211) and first abutment (212), after the hook (220) is hung into the hanging hole (110), the extension (211) and first abutment (212) are all inserted into the limiting part (120), when the supporting arm (200) moves away from the direction of the hanging hole (110), the first abutment (212) can abut the wall surface inside the column (100).

3. The arm mount assembly of claim 2, wherein: The limiting piece (210) further includes second abutment (213), and the second abutment (213) is arranged on the end of the body and is connected with the extension (211), after the hook (220) is hung into the hanging hole (110), the second abutment (213) abuts the wall surface of the column (100) outside which the hanging hole (110) is opened; The first abutment (212) and the second abutment (213) are all perpendicular to the extension (211).

4. The arm mount assembly of claim 2, wherein: The width of the limiting piece (210) is suitable for the width of the limiting part (120).

5. The arm mount assembly of claim 2, wherein: The cross section of the column (100) is L type, T type or cross type, and the hanging hole (110) and the limiting part (120) are both arranged on the wall surface of the recessed part of the column (100).

6. The arm mount assembly of claim 1, wherein: The stand (100) is provided with an inner groove provided with a first side wall and a second side wall, the hanging hole (110) is arranged on the first side wall, and the limiting part (120) is a first sliding groove arranged on the second side wall; the supporting arm (200) comprises a body, the hook (220) and the limiting part (210) are arranged on the end of the body close to the stand (100), the limiting part (210) comprises a third abutting part (250) extending along the direction intersecting the extending direction of the supporting arm (200), when the hook (220) is hung into the hanging hole (110), the limiting part (210) is arranged in the limiting part (120), and when the supporting arm (200) moves away from the hanging hole (110), the limiting part (210) can abut against the inner wall of the limiting part (120).

7. The arm mount assembly of claim 1, wherein: The outer side of the stand (100) is provided with a third side wall and a fourth side wall, the hanging hole (110) is arranged on the third side wall, and the limiting part (120) is a second sliding groove arranged on the fourth side wall; the supporting arm (200) comprises a body, the hook (220) and the limiting part (210) are arranged on the end of the body close to the stand (100), the limiting part (210) comprises an elongated part (260) and a fourth abutting part (270) extending from the body in sequence, after the hook (220) is hung into the hanging hole (110), the fourth abutting part (270) is arranged in the limiting part (120), and when the supporting arm (200) moves away from the hanging hole (110), the fourth abutting part (270) can abut against the inner wall of the limiting part (120).

8. The arm mount assembly of claim 7, wherein: The limiting part (210) further comprises a fifth abutting part (280), the fifth abutting part (280) is arranged on the end of the body and connected with the elongated part (260), after the hook (220) is hung into the hanging hole (110), the fifth abutting part (280) abuts against the wall surface of the stand (100) on which the hanging hole (110) is arranged; The fourth abutting part (270) and the fifth abutting part (280) are perpendicular to the elongated part.

9. The arm mount assembly of claim 1, wherein: The supporting arm (200) further comprises: a supporting plate (230), the limiting part (210) and the hook (220) are arranged on the end of the supporting plate (230); a baffle (240), the baffle (240) is connected with the supporting plate (230) and integrally arranged in an L shape.

10. A bed characterised by: The supporting arm installation assembly comprises the supporting arm installation assembly according to any one of claims 1 to 9.

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