Picture frame tightening assembly, picture frame tightening system and picture frame
By designing the frame tensioning components, multi-stage tensioning adjustment is achieved using the central cylinder, connecting cylinder and adjustment block, solving the problems of time-consuming and wasteful resources in frameless painting, and achieving automated tensioning and multi-size adaptation.
Patent Information
- Application Number
- CN202421772942.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-25
AI Technical Summary
Existing frameless paintings require manual tension when fixing canvas, which is time-consuming and labor-intensive. At the same time, the frame and canvas are basically used at one time, resulting in waste of resources.
A picture frame tensioning assembly is designed, including a central cylinder, a movable connecting cylinder, a rotatable adjusting block and an extension sleeve. By adjusting the distance between the connecting cylinder and the central cylinder, a multi-stage tensioning adjustment is achieved, and the canvas is fixed by an elastic clamp.
The automated canvas tensioning process is realized, reducing manual operation time and labor, able to adapt to different sizes of canvas, reduce resource waste, and improve the practicality and adjustability of frameless painting.
Smart Images
Figure CN222840772U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a picture frame, more specifically, to a picture frame tensioning component. Background Art
[0002] Frameless paintings are a kind of modern decoration, usually including a wooden frame and a canvas, which is fixed to the frame by nailing. Since the size of the frame cannot be changed, the frame and canvas are basically used once, resulting in a large waste of resources. In addition, when fixing the canvas, it is necessary to tighten the canvas manually, which is time-consuming and labor-intensive. Utility Model Content
[0003] Based on this, it is necessary to provide a picture frame tensioning component to address the above technical problems.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0005] A picture frame tightening assembly, characterized in that the picture frame tightening assembly comprises a central cylinder, and a movable connecting column is provided at both ends of the central cylinder. The central cylinder comprises a hollow central profile body, and a first clamping arc groove is provided at the top of the central profile body. A positioning block and a pair of rotatable adjustment blocks are provided inside the central profile body, and the adjustment blocks are separated on both sides of the positioning block. The adjustment blocks cooperate with the connecting column and adjust the relative distance between the connecting column and the central cylinder.
[0006] As a preferred embodiment of the utility model, a first positioning circular hole is provided on the side wall of the central profile body, a second positioning circular hole is provided on both sides of the first positioning circular hole, a first axial hole is provided at the center of the positioning block, the adjustment block comprises a cylindrical adjustment body, a second axial hole is provided at the center of the adjustment body, a hexagonal notch is provided on the end surface of the second axial hole, the first axial hole cooperates with the first positioning circular hole, the second axial hole cooperates with the second positioning circular hole, a pair of eccentric protrusions are provided on the side wall of the adjustment body, a first adjustment plane, a second adjustment plane and a third adjustment plane are provided on the eccentric protrusions, and the distances from the first adjustment plane, the second adjustment plane and the third adjustment plane to the second axial hole gradually increase.
[0007] As a preferred embodiment of the utility model, the connecting column comprises a columnar connecting body, a U-shaped limiting frame is provided in the middle of the connecting body, and a frame slot is provided on the top of the limiting frame.
[0008] A picture frame tensioning system, characterized in that the picture frame tensioning system comprises the picture frame tensioning assembly as described above, and further comprises a pair of extension sleeves and a corner connector, the extension sleeves cooperate with the connecting column, and the corner connector cooperates with the extension sleeves.
[0009] As a preferred embodiment of the utility model, the corner connector includes a block-shaped corner body, a first extension plug is provided on the side wall of the corner body, a second extension plug is provided on the other side wall of the corner body, the setting direction of the second extension plug is perpendicular to the first extension plug, and an "L"-shaped corner slot is provided on the upper surface of the corner body.
[0010] As a preferred embodiment of the utility model, the extension sleeve comprises a hollow extension profile body, and the top of the extension profile body is provided with an extension profile slot.
[0011] A picture frame, characterized in that the picture frame comprises four picture frame tensioning systems as described above, and the picture frame further comprises a plurality of elastic clips.
[0012] As a preferred embodiment of the utility model, the clamping strip is made of rubber or nylon.
[0013] The picture frame is easy to assemble and can be adapted to canvases of various sizes by selecting extension sleeves of different lengths, and can produce frameless paintings of any size. In addition, the rotatable adjustment block can be used to achieve multi-level tension adjustment, which is easy to operate and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the picture frame of the utility model;
[0016] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure decomposition of the painting;
[0017] Figure 3 It is a schematic diagram of the three-dimensional structure decomposition of the picture frame tensioning system of the utility model;
[0018] Figure 4 for Figure 3A schematic diagram of the three-dimensional structure of the corner connector of the picture frame tensioning system;
[0019] Figure 5 for Figure 3 A schematic diagram of the three-dimensional structure of the extension sleeve of the picture frame tensioning system, which is a side view at this time;
[0020] Figure 6 for Figure 3 A schematic diagram of the three-dimensional structure of a picture frame tensioning component of the picture frame tensioning system;
[0021] Figure 7 for Figure 7 A cross-sectional view of the picture frame tensioning assembly along line AA;
[0022] Figure 8 for Figure 6 A schematic diagram of the three-dimensional structure of the picture frame tensioning component;
[0023] Fig. 9 for Figure 8 A schematic diagram of the three-dimensional structure of the adjustment block of the picture frame tensioning assembly;
[0024] Fig.10 for Figure 6 The working diagram of the picture frame tensioning assembly in FIG. 1 , at this time, the adjusting block does not rotate;
[0025] Fig.11 for Fig.10 A detailed enlarged schematic diagram of area B in FIG.
[0026] Fig.12 for Figure 6 The working diagram of the picture frame tightening assembly in FIG. 1 , at this time, the adjusting block rotates to the second adjusting plane;
[0027] Fig.13 for Fig.12 A detailed enlarged schematic diagram of the C region in FIG.
[0028] Fig.14 for Figure 6 The working diagram of the picture frame tensioning assembly in FIG. 1 , at this time, the adjustment block rotates to the third adjustment plane;
[0029] Fig.15 for Fig.14 A detailed enlarged schematic diagram of the D area in FIG.
[0030] Fig.16 This is a schematic diagram of the use of the picture frame of the utility model;
[0031] Among them, 10, picture frame tensioning assembly; 11, central cylinder; 111, central profile body; 112, snap-in arc groove; 113, first positioning circular hole; 114, second positioning circular hole; 12, connecting cylinder; 121, connecting body; 122, limiting square frame; 123, square frame slot; 13, positioning block; 131, first axial hole; 14, adjusting block; 141, adjusting body; 142, second axial hole; 1421, hexagonal notch; 143, eccentric protrusion; 144, first adjustment plane; 145, second adjustment plane; 146, third adjustment plane; 20, extension sleeve; 201, extension profile body; 202, extension profile slot; 30, corner connector; 301, corner body; 3011, corner slot; 302, first extension plug; 303, second extension plug; 40, card strip; S, picture frame tensioning system. DETAILED DESCRIPTION
[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0033] like Figure 1 and Figure 2 As shown, the picture frame P includes four picture frame tensioning systems S.
[0034] like Figure 3 As shown, the picture frame tightening system S comprises a picture frame tightening assembly 10, a pair of extension sleeves 20 and a corner connector 30. The corner connector 30 is matched with the extension sleeve 20.
[0035] like Figure 4 As shown, the corner connector 30 includes a block-shaped corner body 301, a first extension plug 302 is provided on the side wall of the corner body 301, a second extension plug 303 is provided on the other side wall of the corner body 301, the setting direction of the second extension plug 303 is perpendicular to the first extension plug 302, and an "L"-shaped corner slot 3011 is provided on the upper surface of the corner body 301.
[0036] like Figure 5 As shown, the extension sleeve 20 includes a hollow extension profile body 201 , and an extension profile slot 202 is provided on the top of the extension profile body 201 .
[0037] like Figures 6 to 9As shown, the picture frame tensioning assembly 10 comprises a central cylinder 11, and a movable connecting column 12 is provided at both ends of the central cylinder 11. The central cylinder 11 comprises a hollow central profile body 111, and a first clamping arc groove 112 is provided at the top of the central profile body 111. A positioning block 13 and a pair of rotatable adjustment blocks 14 are provided inside the central profile body 111. The adjustment blocks 14 are separated on both sides of the positioning block 13. The adjustment blocks 14 cooperate with the connecting column 12 and adjust the relative distance between the connecting column 12 and the central cylinder 11.
[0038] A first positioning circular hole 113 is provided on the side wall of the central profile body 111, and a second positioning circular hole 114 is provided on both sides of the first positioning circular hole 113. A first axial hole 131 is provided at the center of the positioning block 13. The adjustment block 14 includes a columnar adjustment body 141, and a second axial hole 142 is provided at the center of the adjustment body 141. A hexagonal notch 1421 is provided on the end surface of the second axial hole 142. The first axial hole 131 is matched with the first positioning circular hole 113 by screws, and the second axial hole 142 is matched with the second positioning circular hole 114 by screws.
[0039] A pair of eccentric protrusions 143 are provided on the side wall of the adjustment body 141, and a first adjustment plane 144, a second adjustment plane 145 and a third adjustment plane 146 are provided on the eccentric protrusion 143. The distances from the first adjustment plane 144, the second adjustment plane 145 and the third adjustment plane 146 to the second axial hole 142 gradually increase.
[0040] It should be noted that the number of the adjustment planes on the eccentric protrusion 143 is not limited to three, but may be more than one.
[0041] In addition, the connecting column 12 includes a columnar connecting body 121 , a U-shaped limiting frame 122 is disposed in the middle of the connecting body 121 , and a frame slot 123 is disposed at the top of the limiting frame 122 .
[0042] The working method of the picture frame tensioning assembly 10 is described below.
[0043] like Fig.10 and Fig.11 As shown, at this time, the adjustment block 14 is in an untightened position, and the third adjustment plane 146 abuts against the end surface of the corresponding connecting column 12 .
[0044] like Fig.13 and Fig.14 As shown, when the user rotates the adjustment block 14 , the relative distance between the connecting column 12 and the central cylinder 11 begins to increase until the second adjustment plane 145 abuts against the corresponding end surface of the connecting column 12 .
[0045] like Fig.15 and Fig.16 As shown, when the user continues to rotate the adjustment block 14 , the relative distance between the connecting column 12 and the central cylinder 11 increases again until the third adjustment plane 146 abuts against the end surface of the corresponding connecting column 12 .
[0046] The assembling method of the picture frame P is described below.
[0047] like Fig.16 As shown, four picture frame tensioning systems S are assembled in an end-to-end manner, and the canvas 50 to be tightened is placed at the bottom of the picture frame P.
[0048] Then, the edge of the canvas 50 is turned over along the direction R so that the edge of the canvas 50 wraps around the picture frame tightening system S.
[0049] Then, the elastic clip 40 is clipped into the corresponding first clip arc groove 112, the frame clip groove 123, the extended profile clip groove 202 and the corner clip groove 3011, so that the canvas 50 is initially fixed. It should be noted that the clip 40 is made of rubber or nylon, has a certain elasticity, and can better fix the canvas 50.
[0050] Then, the hexagonal notch 1421 on the adjusting block 14 is used to rotate the adjusting block 14 using a hexagonal rod, for example Fig.16 The adjusting block 14 at the X1 position in the drawing is moved, so that the canvas 50 in the X direction is stretched and tightened. In the same way, the canvas 50 in the Y direction is also tightened. Finally, the installation and tightening operation of the entire canvas 50 is completed.
[0051] The picture frame is easy to assemble, can adapt to canvases of various sizes by selecting extension sleeves 20 of different lengths, and can produce frameless paintings of any size. In addition, by utilizing a rotatable adjustment block, multi-stage tension adjustment can be achieved, which is easy to operate and highly practical.
[0052] Without limitation to this, any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope defined in the claims.
Claims
1. A picture frame tensioning assembly, characterized in that: The picture frame tensioning assembly (10) comprises a central cylinder (11), and a movable connecting column (12) is provided at both ends of the central cylinder (11). The central cylinder (11) comprises a hollow central profile body (111), and a first clamping arc groove (112) is provided at the top of the central profile body (111). A positioning block (13) and a pair of rotatable adjustment blocks (14) are provided inside the central profile body (111). The adjustment blocks (14) are separated on both sides of the positioning block (13). The adjustment blocks (14) cooperate with the connecting column (12) and adjust the relative distance between the connecting column (12) and the central cylinder (11).
2. The picture frame tensioning assembly according to claim 1, characterized in that: A first positioning circular hole (113) is provided on the side wall of the central profile body (111), and a second positioning circular hole (114) is provided on both sides of the first positioning circular hole (113). A first axial hole (131) is provided at the center of the positioning block (13). The adjustment block (14) comprises a columnar adjustment body (141), and a second axial hole (142) is provided at the center of the adjustment body (141). A hexagonal notch (1421) is provided on the end surface of the second axial hole (142). The first axial hole (131) is axially oriented with respect to the adjustment body (141). The first positioning circular hole (113) is matched with the second axial hole (142) and the second positioning circular hole (114). A pair of eccentric protrusions (143) are provided on the side wall of the adjustment body (141). The eccentric protrusions (143) are provided with a first adjustment plane (144), a second adjustment plane (145) and a third adjustment plane (146). The distances from the first adjustment plane (144), the second adjustment plane (145) and the third adjustment plane (146) to the second axial hole (142) gradually increase.
3. The picture frame tensioning assembly according to claim 2, characterized in that: The connecting column (12) comprises a columnar connecting body (121), a U-shaped limiting frame (122) is provided in the middle of the connecting body (121), and a frame slot (123) is provided at the top of the limiting frame (122).
4. A picture frame tensioning system, characterized in that: The picture frame tensioning system (S) comprises a picture frame tensioning assembly (10) as described in any one of claims 1 to 3, and the picture frame tensioning system (S) further comprises a pair of extension sleeves (20) and a corner connector (30), wherein the extension sleeve (20) cooperates with the connecting column (12), and the corner connector (30) cooperates with the extension sleeve (20).
5. The picture frame tensioning system according to claim 4, characterized in that: The corner connector (30) comprises a block-shaped corner body (301), a first extension plug (302) is provided on the side wall of the corner body (301), a second extension plug (303) is provided on the other side wall of the corner body (301), the second extension plug (303) is arranged in a direction perpendicular to the first extension plug (302), and an "L"-shaped corner slot (3011) is provided on the upper surface of the corner body (301).
6. The picture frame tensioning system according to claim 4, characterized in that: The extension sleeve (20) comprises a hollow extension profile body (201), and an extension profile slot (202) is provided on the top of the extension profile body (201).
7. A picture frame, characterized in that: The picture frame (P) comprises four picture frame tightening systems as claimed in any one of claims 4 to 5, and the picture frame further comprises a plurality of elastic clips (40).
8. The picture frame according to claim 7, characterized in that: The clamping strip (40) is made of rubber or nylon.