Powder metallurgy copper bush structure for furniture connection

Abstract

The utility model provides a powder metallurgy copper bush structure for furniture connection, which relates to the technical field of furniture connection parts and comprises a first rotating shaft seat and a second rotating shaft seat which are both arranged to be semi-enclosed. A first opening is formed in the first rotating shaft seat, and the width of the first opening is larger than that of the second rotating shaft seat, so that the second rotating shaft seat can be inserted into the first opening; first connecting holes are formed in the two sides of the first rotating shaft seat, second connecting holes are formed in the two sides of the second rotating shaft seat, powder metallurgy copper sleeves are connected into the second connecting holes, and hollow connecting holes are formed in the powder metallurgy copper sleeves. The utility model has the beneficial effects that the powder metallurgy copper sleeve is arranged between the connecting parts of the first rotating shaft seat and the second rotating shaft seat, and the hardness of copper is smaller than that of iron and stainless steel, so that the noise generated when the first rotating shaft seat and the second rotating shaft seat move mutually can be eliminated; and a certain silencing effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture connection components, in particular to a powder metallurgy copper sleeve structure for furniture connection. Background Art

[0002] For furniture used in a relatively small residence or temporarily, people hope that it has a folding function to reduce the area it occupies when not in use; or some smart furniture such as functional bed frames, smart bed frames, AI mattresses, smart mattresses, functional mattresses, functional sofas, smart sofas, smart leisure chairs or leisure chairs, etc., also need to have a folding function because they need to adapt to different sitting postures of people.

[0003] The hinge structure between the adjacent parts of the traditional furniture mentioned above that need to be folded is relatively simple. For example, the technical solution disclosed in the multi-section folding bed of Chinese Patent Publication No. CN218451509U is, "including a bed board, a plurality of the bed boards are hinged by hinges, and support members are provided at both ends of the bed board, and the bed board is supported by the support members; the hinge members are hinged strips, and hinge shafts are provided at both ends of the hinge strips, and the two hinge shafts are respectively inserted into the hinge holes opened on the two bed boards. "That is, in this structure, the hinge is simply achieved by inserting the hinge shaft into the hinge hole, but the defect of this structure is that noise is generated when the hinge shaft and the hinge hole move relative to each other, which can easily cause discomfort or irritation when used for a long time.

[0004] That is, there is still room for improvement in the existing technology. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a powder metallurgy copper sleeve structure for furniture connection, which has an ingenious structure and a sound-absorbing effect.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] A powder metallurgy copper sleeve structure for furniture connection includes a first rotating shaft seat and a second rotating shaft seat, both of which are arranged in a semi-enclosed shape; the first rotating shaft seat is formed with a first opening, the width of the first opening is greater than the width of the second rotating shaft seat, so that the second rotating shaft seat can be inserted and installed in the first opening; first connecting holes are formed on both sides of the first rotating shaft seat, and second connecting holes are formed on both sides of the second rotating shaft seat, and the powder metallurgy copper sleeve is connected to the second connecting hole, and the powder metallurgy copper sleeve is provided with a hollow connecting hole; the second rotating shaft seat is inserted and installed in the first opening, so that the centers of the first connecting hole and the hollow connecting hole are in the same straight line, and then a connecting rod is inserted along the straight line to form a hinge between the first rotating shaft seat and the second rotating shaft seat.

[0008] Furthermore, the first rotating shaft seat includes a first connecting plate and a first side plate A and a first side plate B respectively connected on both sides of the first connecting plate; the second rotating shaft seat includes a second connecting plate and a second side plate A and a second side plate B respectively connected on both sides of the first connecting plate; when the first rotating shaft seat and the second rotating shaft seat are hinged, the first side plate A, the first side plate B, the second side plate A and the second side plate B are parallel to each other.

[0009] Furthermore, the powder metallurgy copper sleeve includes a straight cylinder and an annular plate connected to the end of the straight cylinder, the straight cylinder is inserted into the second connecting hole, and the annular plate extends outward in a flat shape to separate the first side plate A and the first side plate B, and to separate the second side plate A and the second side plate B.

[0010] Furthermore, the connecting rod is a bolt, and the end of the bolt is threadedly connected with a nut.

[0011] Furthermore, the second rotating shaft seat is formed with a second opening, and after the straight tube is inserted into the second connecting hole, it further extends into the second opening.

[0012] Furthermore, the outer side surfaces of the first connecting plate and the second connecting plate are both flat, and the outer side surface of the first connecting plate is arranged parallel to the outer side surface of the second connecting plate.

[0013] Furthermore, the width of the first rotating shaft seat is L1, and the value of L1 is 38~43mm; the width of the second rotating shaft seat is L2, and the value of L2 is 25.5~30.5mm; the plate thickness of the first rotating shaft seat and the second rotating shaft seat is L3, and the value of L3 is 3~5mm.

[0014] Furthermore, the first rotating shaft seat and the second rotating shaft seat have the same height, which is L4, and the value of L4 is 18-22 mm.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model arranges a powder metallurgy copper sleeve between the connecting portion of the first rotating shaft seat and the second rotating shaft seat. Since the hardness of copper is lower than that of iron and stainless steel, the noise generated when the first rotating shaft seat and the second rotating shaft seat move relative to each other can be eliminated, thereby achieving a certain noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1The utility model is a three-dimensional powder metallurgy copper sleeve structure for furniture connection Figure 1 ;

[0019] Figure 2 The utility model is a three-dimensional powder metallurgy copper sleeve structure for furniture connection Figure 2 ;

[0020] Figure 3 This is an exploded view of the powder metallurgy copper sleeve structure for furniture connection according to the present invention;

[0021] Figure 4 This is a top view of the powder metallurgy copper sleeve structure for furniture connection according to the present invention;

[0022] Figure 5 It is a side view of the powder metallurgy copper sleeve structure for furniture connection according to the present invention.

[0023] In the figure: 1. First rotating shaft seat; 101. First opening; 102. First connecting plate; 103. First side plate A; 104. First side plate B; 105. First connecting hole; 2. Second rotating shaft seat; 201. Second opening; 202. Second connecting plate; 203. Second side plate A; 204. Second side plate B; 205. Second connecting hole; 3. Powder metallurgy copper sleeve; 301. Hollow connecting hole; 302. Straight cylinder; 303. Annular plate; 4. Connecting rod; 5. Nut. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0025] like Figures 1 to 5 As shown, a powder metallurgy copper sleeve structure for furniture connection, which is requested to be protected by the utility model, includes a first rotating shaft seat 1 and a second rotating shaft seat 2. The first rotating shaft seat 1 and the second rotating shaft seat 2 are respectively fixedly connected to adjacent hinged and foldable plates or components in the furniture. Therefore, the first rotating shaft seat 1 and the second rotating shaft seat 2 can rotate relative to each other. The structure is achieved by arranging a powder metallurgy copper sleeve 3 between the connecting parts of the first rotating shaft seat 1 and the second rotating shaft seat 2. The powder metallurgy copper sleeve 3 is made of copper. Because the hardness of copper is less than that of iron and stainless steel, compared with the traditional method of using iron and stainless steel as hinged components, the structure of the utility model can eliminate the noise generated when the first rotating shaft seat 1 and the second rotating shaft seat 2 move relative to each other, and can achieve a certain sound insulation effect.

[0026] Specifically, the first rotating shaft seat 1 and the second rotating shaft seat 2 are both arranged in a semi-enclosed shape; the first rotating shaft seat 1 is formed with a first opening 101, and the width of the first opening 101 is greater than the width of the second rotating shaft seat 2, so that the second rotating shaft seat 2 can be inserted and installed in the first opening 101; first connecting holes 105 are opened on both sides of the first rotating shaft seat 1, wherein the first rotating shaft seat 1 includes a first connecting plate 102 and a first side plate A103 and a first side plate B104 respectively connected to both sides of the first connecting plate 102, and the first side plate A103 and the first side plate B104 are both provided with a first connecting hole 105; the first rotating shaft seat 1 can be formed and bent as a whole, and then the first connecting hole 105 is punched to form the first connecting hole 105.

[0027] Second connecting holes 205 are provided on both sides of the second rotating shaft seat 2, wherein the second rotating shaft seat 2 includes a second connecting plate 202 and a second side plate A203 and a second side plate B204 respectively connected to both sides of the first connecting plate 102, and second connecting holes 205 are provided on the second side plate A203 and the second side plate B204; the second rotating shaft seat 2 can be integrally formed and bent, and then punched to form the second connecting hole 205.

[0028] The second connecting hole 205 is connected to a powder metallurgy copper sleeve 3, which is provided with a hollow connecting hole 301. The hollow connecting hole 301 is convenient for inserting the connecting rod 4. During assembly, the second rotating shaft seat 2 is inserted and installed into the first opening 101, so that the centers of the first connecting hole 105 and the hollow connecting hole 301 are in the same straight line, and then the connecting rod 4 is inserted along the straight line to form a hinge between the first rotating shaft seat 1 and the second rotating shaft seat 2; Figure 1 、 Figure 2 as well as Figure 4 It can be seen that the powder metallurgy copper sleeve 3 includes a straight cylinder 302 and an annular plate 303 connected to the end of the straight cylinder 302. The straight cylinder 302 is inserted into the second connecting hole 205. The annular plate 303 is flatly extended outward to separate the first side plate A103 and the first side plate B104, and to separate the second side plate A203 and the second side plate B204. The annular plate 303 not only achieves a limiting effect to limit the powder metallurgy copper sleeve 3 to be fixed in the second connecting hole 205, but also achieves the effect of separating the first rotating shaft seat 1 and the second rotating shaft seat 2.

[0029] As can be seen from the above structure, when the first rotating shaft seat 1 and the second rotating shaft seat 2 are hinged, the first rotating shaft seat 1 and the second rotating shaft seat 2 do not directly contact each other. When rotating with each other, the first rotating shaft seat 1 and the second rotating shaft seat 2 only rub against the powder metallurgy copper sleeve 3, thereby achieving the effect of noise reduction. When the first rotating shaft seat 1 and the second rotating shaft seat 2 are hinged, the first side plate A103, the first side plate B104, the second side plate A203, and the second side plate B204 are parallel to each other, so there is no interference with each other, which helps the first rotating shaft seat 1 and the second rotating shaft seat 2 rotate smoothly.

[0030] In this embodiment, the connecting rod 4 is a bolt, and the end of the bolt is threadedly connected to a nut 5. When the bolt connects the first rotating shaft seat 1 and the second rotating shaft seat 2, the first rotating shaft seat 1 and the second rotating shaft seat 2 can be fixed by screwing on the nut 5, and they are not easy to loosen.

[0031] Combine Figures 1 to 3 It can be seen that the second rotating shaft seat 2 is formed with a second opening 201 , and after the straight cylinder 302 is inserted into the second connecting hole 205 , it further extends into the second opening 201 , thereby enhancing the insertion and installation effect of the powder metallurgy copper sleeve 3 in the second connecting hole 205 .

[0032] The outer side surfaces of the first connecting plate 102 and the second connecting plate 202 are both flat, and the outer side surface of the first connecting plate 102 is arranged parallel to the outer side surface of the second connecting plate 202. Since the outer side surfaces of the first connecting plate 102 and the second connecting plate 202 are both used to be fixed to adjacent panels in the furniture, the flat shape and parallel arrangement facilitate fit and fixation with the panels.

[0033] The width of the first rotating shaft seat 1 is L1, and the value of L1 is 38~43mm. In this embodiment, the value of L1 is 41mm; the width of the second rotating shaft seat 2 is L2, and the value of L2 is 25.5~30.5mm. In this embodiment, the value of L2 is 28.5mm. The inventor found in actual production that the above-mentioned widths of the first rotating shaft seat 1 and the second rotating shaft seat 2 are appropriate. Taking the connection of two adjacent bed frames in a folding bed as an example, using two or three groups of first rotating shaft seats 1 and second rotating shaft seats 2 of this width size is just right and can meet the folding requirements.

[0034] The height of the first rotating shaft seat 1 and the second rotating shaft seat 2 is the same, which is L4. The value of L4 is 18 to 22 mm. In this embodiment, the value of L4 is 20 mm. Taking the application in a folding bed as an example, the height value is generally less than the thickness of the folding bed. Therefore, the height of the first rotating shaft seat 1 and the second rotating shaft seat 2 will not protrude from the surface and bottom of the folding bed and affect the use; in addition, the plate thickness of the first rotating shaft seat 1 and the second rotating shaft seat 2 is L3. The value of L3 is 3 to 5 mm. In this embodiment, the value of L3 is 4 mm. This plate thickness can meet the actual use strength requirements and will not cause the structure to be bulky or the cost to increase due to excessive thickness.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A powder metallurgy copper sleeve structure for furniture connection, characterized in that: The invention comprises a first rotating shaft seat (1) and a second rotating shaft seat (2), wherein the first rotating shaft seat (1) and the second rotating shaft seat (2) are both arranged in a semi-enclosed shape; the first rotating shaft seat (1) is formed with a first opening (101), the width of the first opening (101) is greater than the width of the second rotating shaft seat (2), so that the second rotating shaft seat (2) can be inserted into the first opening (101); first connecting holes (105) are formed on both sides of the first rotating shaft seat (1), and first connecting holes (105) are formed on both sides of the second rotating shaft seat (2). A second connecting hole (205) is provided, a powder metallurgy copper sleeve (3) is connected to the second connecting hole (205), and the powder metallurgy copper sleeve (3) is provided with a hollow connecting hole (301); the second rotating shaft seat (2) is inserted and installed into the first opening (101), and the centers of the first connecting hole (105) and the hollow connecting hole (301) are arranged on the same straight line, and then a connecting rod (4) is inserted along the straight line to form a hinged connection between the first rotating shaft seat (1) and the second rotating shaft seat (2).

2. The powder metallurgy copper sleeve structure for furniture connection according to claim 1, characterized in that: The first rotating shaft seat (1) comprises a first connecting plate (102) and a first side plate A (103) and a first side plate B (104) respectively connected to both sides of the first connecting plate (102); the second rotating shaft seat (2) comprises a second connecting plate (202) and a second side plate A (203) and a second side plate B (204) respectively connected to both sides of the first connecting plate (102); when the first rotating shaft seat (1) and the second rotating shaft seat (2) are hinged, the first side plate A (103), the first side plate B (104), the second side plate A (203) and the second side plate B (204) are parallel to each other.

3. The powder metallurgy copper sleeve structure for furniture connection according to claim 2, characterized in that: The powder metallurgy copper sleeve (3) comprises a straight cylinder (302) and an annular plate (303) connected to the end of the straight cylinder (302). The straight cylinder (302) is inserted into the second connecting hole (205). The annular plate (303) is flatly extended outward to separate the first side plate A (103) and the first side plate B (104), and to separate the second side plate A (203) and the second side plate B (204).

4. The powder metallurgy copper sleeve structure for furniture connection according to any one of claims 1 to 3, characterized in that: The connecting rod (4) is a bolt, and the end of the bolt is threadedly connected with a nut (5).

5. The powder metallurgy copper sleeve structure for furniture connection according to claim 3, characterized in that: The second rotating shaft seat (2) is formed with a second opening (201), and the straight tube (302) is further extended into the second opening (201) after being plugged into the second connecting hole (205).

6. The powder metallurgy copper sleeve structure for furniture connection according to claim 3, characterized in that: The outer side surfaces of the first connecting plate (102) and the second connecting plate (202) are both flat, and the outer side surface of the first connecting plate (102) is arranged parallel to the outer side surface of the second connecting plate (202).

7. The powder metallurgy copper sleeve structure for furniture connection according to claim 1, characterized in that: The width of the first rotating shaft seat (1) is L1, and the value of L1 is 38 to 43 mm; the width of the second rotating shaft seat (2) is L2, and the value of L2 is 25.5 to 30.5 mm; the plate thickness of the first rotating shaft seat (1) and the second rotating shaft seat (2) is L3, and the value of L3 is 3 to 5 mm.

8. The powder metallurgy copper sleeve structure for furniture connection according to claim 7, characterized in that: The first rotating shaft seat (1) and the second rotating shaft seat (2) have the same height, which is L4, and the value of L4 is 18 to 22 mm.

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