Backrest frame and backrest

Abstract

The utility model relates to a backrest frame and a backrest and relates to the technical field of furniture, the backrest frame comprises a frame body and a connecting assembly installed on the frame body, and the connecting assembly comprises two connecting pieces fixedly installed on the frame body and distributed in the height direction of the frame body; the back plate is installed between the two connecting pieces, the connecting assembly is arranged on the frame body, the back plate in the connecting assembly can abut against the face sleeve, collapse and cavities generated when the face sleeve is pressed are avoided, and attractiveness and user experience are improved.

Description

Technical Field

[0001] The present application relates to the field of furniture, and in particular to a backrest frame and a backrest. Background Art

[0002] With the development of the furniture industry, people have higher and higher requirements for the installation and use of furniture. In existing soft furniture such as sofas and chairs, in order to improve the user's comfort, a cover is often used to cover the backrest frame.

[0003] With respect to the above-mentioned related technologies, the inventors found that after the backrest frame is covered with the face cover, some positions will form hollow shapes. Pressing these positions by hand will easily cause the face cover to collapse and produce holes, affecting the appearance and user experience. Utility Model Content

[0004] In order to solve the above problems, the present application provides a backrest frame and a backrest, and a connecting component is installed on the backrest frame. The face cover is supported by the back plate in the connecting component to reduce the degree of collapse and cavity when the face cover is under pressure, thereby improving the aesthetics and user experience.

[0005] The backrest frame provided in this application adopts the following technical solution:

[0006] A backrest frame comprises a frame body and a connecting assembly mounted on the frame body, wherein the connecting assembly comprises: two connecting members fixedly mounted on the frame body and distributed along the height direction of the frame body; and a back plate mounted between the two connecting members.

[0007] By adopting the above technical solution, the connecting assembly is installed on the frame body and includes two connecting parts and a back plate installed between the connecting parts. The connecting parts are distributed along the height direction of the frame body. When the user leans on it to use it, the connecting part located at the top can provide support for the user's head, and the connecting part located at the bottom can provide support for the user's waist. The setting of the back plate can avoid the formation of hollows in the part between the upper and lower connecting parts after the sofa cover is covered, that is, the back plate supports the cover to reduce the collapse of the cover, thereby improving the aesthetics and user experience.

[0008] Optionally, the frame body includes two mounting members, and two connecting members are fixedly mounted between the two mounting members and abut against the two mounting members to limit movement of the connecting members relative to the mounting members along the first direction.

[0009] By adopting the above technical solution, the connecting member is fixedly installed between the two mounting members and abuts against the mounting members to limit the movement of the connecting component along the first direction, wherein the connecting member abuts against the mounting member, and the first direction is the vertical direction of the abutting surface between the connecting member and the mounting member, thereby increasing the restriction on the degree of freedom of the connecting member, thereby improving the stability and reliability of the connection, and reducing the shaking of the connecting member during use.

[0010] Optionally, the mounting member has a connector and the connecting member has a socket for plugging the connector, or the connecting member has a connector and the mounting member has a socket for plugging the connector; wherein: the mounting member and the connecting member are plugged into each other to limit the movement of the connecting member relative to the mounting member along a first direction perpendicular to the mounting member, and to limit the rotation of the connecting member relative to the mounting member around a first direction.

[0011] By adopting the above technical solution, the mounting member and the connecting member are connected by the plug-in fit between the connector and the socket, and the plug-in fit limits the movement of the connecting member relative to the mounting member along a first direction perpendicular to the first direction and the rotation around the first direction, thereby further improving the restriction on the degree of freedom of the connecting component and enhancing the connection stability and reliability.

[0012] Optionally, the mounting member and the connecting member are fixedly connected by a fastener, wherein: the connection direction of the fastener is consistent with the first direction, so as to limit the movement of the connecting member relative to the mounting member along a direction perpendicular to the first direction, and to limit the rotation of the connecting member relative to the mounting member around the first direction.

[0013] By adopting the above technical solution, the mounting member and the connecting member are connected by a fastener, and the connection direction of the fastener is consistent with the first direction, so that the fastener can limit the movement of the connecting member relative to the mounting member along the vertical first direction and the rotation around the first direction, thereby further improving the freedom restriction of the connecting component and improving the connection stability and reliability.

[0014] Optionally, the mounting member further has an abutment portion abutting against the connecting member to limit the movement of the connecting member relative to the mounting member along a first direction perpendicular to the mounting member, and to limit the rotation of the connecting member relative to the mounting member around the first direction.

[0015] By adopting the above technical solution, an abutment portion is provided to limit the movement of the connecting member in a first direction perpendicular to the first direction and the rotation around the first direction through an abutment action, thereby further improving the restriction on the degree of freedom of the connecting component and enhancing the connection stability and reliability.

[0016] Optionally, a first slot for plugging the backplane is provided on the mounting member to limit movement of the backplane along a first direction.

[0017] By adopting the above technical solution, a first slot is provided on the mounting member to plug into the backplane, so as to limit the movement of the backplane along the first direction, thereby further cooperating with the mounting member to abut against the connecting member to further improve the connection stability of the connecting assembly.

[0018] Optionally, a second slot for plugging the backplane is provided on the connecting member to limit the movement of the backplane along a first direction perpendicular to the first direction.

[0019] By adopting the above technical solution, a second slot is provided on the connecting member for plugging in the back panel, so that the back panel and the connecting member are detachable, which is convenient for packaging and transportation. The second slot on the connecting member can limit the movement of the back panel along the vertical first direction, and cooperate with the second slot on the mounting member to limit the back panel, thereby reducing the shaking of the back panel during use and improving the connection stability.

[0020] Optionally, the back plate is integrally formed with or fixedly connected to the two connecting members.

[0021] By adopting the above technical solution, the back plate and the connecting piece are integrated, which is convenient for production and installation.

[0022] The present application also discloses a backrest adopting the following technical solution:

[0023] A backrest comprises the backrest frame as described above.

[0024] By adopting the above technical solution, a backrest with the above backrest frame is applied, and when the user presses on the backboard during use of the backrest, the cover will be restricted by the backboard and will not collapse or become hollow, thereby improving the aesthetics and user experience.

[0025] Optionally, the backrest further comprises a face cover and an elastic member mounted on the frame body, the elastic member abuts against the front side of the face cover, and the back plate abuts against the back side of the face cover.

[0026] By adopting the above technical solution, the face cover is covered on the outside of the backrest frame, the elastic member abuts against the front of the face cover to support the face cover, and the back of the face cover is abutted by the back plate to reduce the collapse of the face cover.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. In this application, a connection component is provided on the frame body, and the back plate in the connection component can be used to support the face cover, thereby preventing the face cover from collapsing when under pressure, thereby improving the aesthetics and user experience;

[0029] 2. In a further configuration of the present application, the connector is connected to the mounting member, and the degree of freedom of the connector is limited by plugging, fastener connection, abutment, etc. The mounting member is provided with a first slot for plugging the backplane, which limits the degree of freedom of the backplane and improves the connection stability and reliability;

[0030] 3. In the further configuration of the present application, the back panel and the connecting piece can be integrally formed or fixedly installed, so that the installation connection between the connecting component and the frame body is convenient and quick; the back panel and the connecting piece can also adopt a detachable connection by plug-in fitting, which is convenient for packaging and transportation, and the second slot on the connecting piece cooperates with the first slot to limit the freedom of the back panel, thereby improving the structural stability of the back panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of a backrest frame;

[0032] Figure 2 It is an exploded schematic diagram of a mounting part, connecting components, and fasteners;

[0033] Figure 3 It is a side view of the mounting part and a partial enlarged schematic diagram;

[0034] Figure 4 It is a side view and a partial enlarged schematic diagram after the connection component is installed on the mounting part;

[0035] Figure 5 is an exploded schematic diagram of a detachable connection assembly;

[0036] Figure 6 is a side view and a partial enlarged schematic diagram of a detachable connection component;

[0037] Figure 7 It is a three-dimensional structural schematic diagram of an integrated connection component;

[0038] Figure 8 It is a schematic diagram of the three-dimensional structure of the backrest without the cover and the soft bag;

[0039] Fig. 9 yes Figure 8 A side view schematic diagram of

[0040] Fig.10 It is a schematic diagram showing the three-dimensional structure of the front of the backrest after the cover and the soft bag are set;

[0041] Fig.11 It is a schematic diagram showing the three-dimensional structure of the back of the backrest after the surface cover and the soft bag are set.

[0042] Explanation of the accompanying drawings: 1. Frame body; 11. Mounting piece; 111. Abutment portion; 112. First slot; 2. Connecting assembly; 21. Connecting piece; 211. First connecting piece; 212. Second connecting piece; 213. Second slot; 22. Back panel; 3. Face cover; 4. Soft bag; 5. Connector; 6. Socket; 7. Fastener; 8. Connecting hole; 9. Elastic piece; 10. Countersunk hole. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various configurations. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0047] The following is combined with Figure 1-11 This application is described in further detail.

[0048] The present application embodiment discloses a backrest frame, as shown in the attached Figure 1 , Attachment Figure 2 As shown, it includes a frame body 1 and a connection assembly 2. The frame body 1 includes two mounting members 11, which are arranged in a left-right distribution, and the spacing between the two mounting members 11 is the width of the backrest frame; the connection assembly 2 includes two connecting members 21, which are fixedly installed on the frame body 1 and distributed along the height direction of the frame body 1, and a back plate 22 is installed between the two connecting members 21. Specifically, the two connecting members 21 are fixedly installed between the two mounting members 11 to form the backrest frame, and the two connecting members 21 are in contact with the mounting members 11 to limit the movement of the connecting members 21 relative to the mounting members 11 along the first direction.

[0049] In this embodiment, one of the connecting members 21 is installed at the top of the frame body 1 to support the user's head, and the other connecting member 21 is installed at the bottom of the frame body 1 to support the user's waist.

[0050] In this embodiment, combined with the attached Figure 3 , Attachment Figure 4The left and right ends of the connecting member 21 are respectively fixedly connected to the two connecting members 21 , and the left and right ends of the connecting member 21 are both against the connecting member 21 to limit the movement of the connecting member 21 in the left and right directions.

[0051] Further explanation: the left and right direction of the backrest frame is the X direction, the up and down direction is the Z direction, and the front and back direction is the Y direction, wherein the X direction is the first direction, and the abutment between the connecting member 21 and the mounting member 11 can limit the freedom of movement of the connecting member 21 along the X direction and the freedom of rotation around the Y direction and the Z direction, so as to ensure the stability and reliability of the connection between the connecting member 21 and the mounting member 11.

[0052] In addition, the following three implementation modes are specifically provided for further setting of the movement freedom of the connecting member 21 along the Y direction and the Z direction and the rotation freedom around the X direction, which can further improve the stability and reliability of the connecting structure.

[0053] Implementation method 1:

[0054] The mounting member 11 has a plug-in member 5 and the connecting member 21 has a socket 6 for plugging in the plug-in member 5, or the connecting member 21 has a plug-in member 5 and the mounting member 11 has a socket 6 for plugging in the plug-in member 5, wherein: the plug-in fit between the mounting member 11 and the connecting member 21 is used to limit the movement of the connecting member 21 relative to the mounting member 11 along a first direction perpendicular to the mounting member 11, and to limit the rotation of the connecting member 21 relative to the mounting member 11 around a first direction, that is, through the plug-in fit to limit the movement of the connecting member 21 relative to the mounting member 11 along the Y direction and the Z direction, and at the same time limit the rotation of the connecting member 21 around the X direction, thereby cooperating with the abutment between the connecting member 21 and the mounting member 11 to limit the six degrees of freedom of the connecting member 21.

[0055] It should be noted that the plug-in component 5 and the plug-in hole 6 are generally not cylindrical, so as to prevent the connecting component 21 from easily rotating relative to the mounting component 11 after plugging.

[0056] Implementation method 2:

[0057] The mounting member 11 and the connecting member 21 are fixedly connected by a fastener 7, wherein the connection direction of the fastener 7 is consistent with the first direction, so as to limit the movement of the connecting member 21 relative to the mounting member 11 along the first direction perpendicular to the first direction, and limit the rotation of the connecting member 21 relative to the mounting member 11 around the first direction, and also cooperate with the abutment effect of the connecting member 21 and the mounting member 11 to limit the six degrees of freedom of the connecting member 21.

[0058] It should be noted that: the latch, as a kind of fastener 7, adopts an interference fit to fasten the connecting member 21 and the mounting member 11. In the implementation method, the latch is generally not cylindrical to avoid the connecting member 21 from rotating relative to the mounting member 11 after the latch is inserted and fastened.

[0059] Implementation method three:

[0060] The mounting member 11 further has an abutting portion 111 abutting against the connecting member 21 , thereby limiting the movement of the connecting member 21 relative to the mounting member 11 along a first direction perpendicular to the connecting member 21 and limiting the rotation of the connecting member 21 relative to the mounting member 11 around the first direction.

[0061] It should be noted that the abutment portion 111 needs to abut and restrict the connector 21 in four directions, namely, the positive and negative directions in the Y direction and the positive and negative directions in the Z direction, and cooperate with the abutment between the connector 21 and the mounting member 11 to restrict the six degrees of freedom of the connector 21.

[0062] In other embodiments, any two or three of the above three embodiments may be combined for application. When more than two embodiments are combined for application, the connector 5 and the socket 6 may adopt cylindrical plug-in according to actual conditions, and the fastener 7 may also adopt cylindrical pin. The combination of two or more of the three embodiments may over-restrict the degree of freedom of the connector 21, thereby ensuring the stability of the connector 21 and the connection reliability.

[0063] In order to facilitate the distinction, Figure 5 , Attachment Figure 6 The upper connecting member 21 is referred to as the first connecting member 211 , and the lower connecting member 21 is referred to as the second connecting member 212 .

[0064] In this embodiment, the first connecting member 211 adopts a combination of the above three implementation methods to limit the degree of freedom. Specifically, the left and right ends of the first connecting member 211 are respectively abutted against the two mounting members 11, a plug hole 6 is provided on the first connecting member 211, and a plug connector 5 plugged into the plug hole 6 is provided on the mounting member 11. The plug connector 5 is in contact with the positive and negative side walls of the plug hole 6 along the Y direction and the positive and negative side walls along the Z direction, so as to achieve the purpose of limiting the movement of the first connecting member 211 in the Y direction and the Z direction and the rotation around the X direction; the fastener 7 is a bolt, a connecting hole 8 is provided on the first connecting member 211, and a plug connector 5 is provided on the mounting member 11 to connect the plug hole 6. A countersunk hole 10 is opened, and the connecting hole 8 is opposite to the countersunk hole 10 along the X direction, and a bolt is installed in the connecting hole 8 from the X direction to fasten and install the first connecting member 211 and the mounting member 11. The countersunk hole 10 is convenient for hiding the bolt and restricting the movement of the first connecting member 211 along the Y direction and the Z direction; the abutment portion 111 is adapted to the outer contour of the first connecting member 211, and can abut the positive and negative sides of the first connecting member 211 along the Y direction and the reverse side of the Z direction, thereby further restricting the degree of freedom of the first connecting member 211.

[0065] The second connecting member 212 is limited in freedom by combining the second embodiment and the third embodiment. Specifically, the fastener 7 is a bolt, and a connecting hole 8 is opened on the second connecting member 212. The bolt is installed in the connecting hole 8 from the X direction, and the second connecting member 212 and the mounting member 11 are fastened and installed, and the movement of the second connecting member 212 in the Y direction and the Z direction is limited; the abutment portion 111 is adapted to the outer contour of the second connecting member 212, and can abut the reverse side of the second connecting member 212 in the Y direction and the positive side of the Z direction, so as to further limit the freedom of the second connecting member 212.

[0066] In addition, the connector 21 is produced by an extrusion molding process, and its socket 6 can be formed by the extrusion process. In this embodiment, the socket 6 passes through the connector 21 along the X direction; the mounting member 11 is produced by a blow molding process, and its plug-in member 5 imitates the inner wall contour of the socket 6 in the connector 21, and the abutment portion 111 imitates the outer contour of the connector 21 to improve the degree of plug-in adaptation and abutment adaptation between the mounting member 11 and the connector 21. It should be noted that: the plug-in member 5 imitating the inner wall contour of the socket 6 does not mean that the plug-in member 5 needs to completely abut against the inner wall of the socket 6 when it is inserted into the socket 6, but it only needs to satisfy the limitation of the movement of the connector 21 along the Y direction and the Z direction.

[0067] In a further configuration, the mounting member 11 is provided with a first slot 112 for inserting the back panel 22, so as to limit the movement of the back panel 22 relative to the mounting member 11 along the first direction (i.e., the X direction). Specifically, after the back panel 22 is inserted into the first slot 112 along the first direction, it abuts against the mounting member 11 and is limited by the movement of the mounting member 11.

[0068] For the connection assembly 2, a second slot 213 for plugging the backplane 22 is provided on the connection member 21 to limit the movement of the backplane 22 relative to the connection member 21 in the first direction perpendicular to the connection member 21. Specifically, the connection member 21 and the backplane 22 are connected by plug-in matching, that is, the connection member 21 and the backplane 22 are detachably connected, which is convenient for packaging and transportation; the restriction of the backplane 22 by the mounting member 11 can achieve complete restriction of the six degrees of freedom of the backplane 22, thereby improving the stability and reliability of the installation of the backplane 22.

[0069] In other embodiments, in combination with Figure 7 The back plate 22 and the two connecting members 21 are integrally extruded or fixedly connected by welding or the like, so that the connecting members 21 and the back plate 22 can be simultaneously installed on the mounting member 11, thereby improving the installation efficiency.

[0070] The present application also discloses a backrest, as shown in the attached Figure 8 To Attachment Fig.11, including a backrest frame, a cover 3, a soft bag 4 and an elastic member 9. The frame body 1 of the backrest frame covers the cover 3, the elastic member 9 is installed on the front of the frame body 1 and abuts against the front of the cover 3. To prevent the elastic member 9 from being exposed, the elastic member 9 abuts against the inner side of the front of the cover 3, and the back of the frame body 1 partially covers the cover 3, wherein the elastic member 9 adopts a serpentine spring.

[0071] In this embodiment, the upper half of the back side of the frame body 1 only needs to cover the face cover 3, so the first connecting member 211 is installed at the top edge of the frame body 1, and the second connecting member 212 is installed at the middle position in the height direction of the frame body 1. The back plate 22 is connected between the first connecting member 211 and the second connecting member 212 to support the face cover 3 on the back side of the frame body 1.

[0072] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A backrest frame, characterized in that: The invention comprises a frame body (1) and a connection assembly (2) mounted on the frame body (1), wherein the connection assembly (2) comprises: two connection members (21) fixedly mounted on the frame body (1) and distributed along the height direction of the frame body (1); and a back plate (22) mounted between the two connection members (21).

2. The backrest frame according to claim 1, characterized in that: The frame body (1) comprises two mounting members (11), and the two connecting members (21) are fixedly mounted between the two mounting members (11) and abut against the two mounting members (11) to limit movement of the connecting members (21) relative to the mounting members (11) along a first direction.

3. The backrest frame according to claim 2, characterized in that: The mounting member (11) has a plug-in member (5) and the connecting member (21) has a socket (6) for plugging the plug-in member (5), or the connecting member (21) has a plug-in member (5) and the mounting member (11) has a socket (6) for plugging the plug-in member (5); wherein: the plug-in fit between the mounting member (11) and the connecting member (21) is used to restrict the movement of the connecting member (21) relative to the mounting member (11) in a first direction perpendicular to the mounting member (11), and to restrict the rotation of the connecting member (21) relative to the mounting member (11) around a first direction.

4. The backrest frame according to claim 2, characterized in that: The mounting member (11) and the connecting member (21) are fixedly connected via a fastener (7), wherein the connection direction of the fastener (7) is consistent with a first direction, so as to limit the movement of the connecting member (21) relative to the mounting member (11) in a direction perpendicular to the first direction, and to limit the rotation of the connecting member (21) relative to the mounting member (11) around the first direction.

5. The backrest frame according to claim 2, characterized in that: The mounting member (11) also has an abutment portion (111) abutting against the connecting member (21) so as to limit the movement of the connecting member (21) relative to the mounting member (11) along a first direction perpendicular to the connecting member (21), and to limit the rotation of the connecting member (21) relative to the mounting member (11) around the first direction.

6. The backrest frame according to claim 2, characterized in that: The mounting member (11) is provided with a first slot (112) for inserting the back plate (22) so as to limit the movement of the back plate (22) relative to the mounting member (11) along a first direction.

7. The backrest frame according to any one of claims 2 to 6, characterized in that: The connecting member (21) is provided with a second slot (213) for plugging into the back plate (22) so as to limit the movement of the back plate (22) relative to the connecting member (21) along a first direction perpendicular to the back plate (22).

8. The backrest frame according to any one of claims 2 to 6, characterized in that The back plate (22) and the two connecting members (21) are integrally formed or fixedly connected.

9. A backrest, characterized in that: It comprises the backrest frame as claimed in claim 1.

10. The backrest according to claim 9, characterized in that The backrest further comprises a face cover (3) and an elastic member (9) mounted on the frame body (1), wherein the elastic member (9) abuts against the front side of the face cover (3), and the back plate (22) abuts against the back side of the face cover (3).

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