Picture frame facilitating replacement of paintings

Abstract

The utility model relates to the technical field of picture frames, in particular to a picture frame convenient for replacing paintings, which comprises an upper cover plate and a lower base plate which are matched with each other, vertical clamping plates, horizontal clamping plates and fixed magnetic blocks are arranged on the upper cover plate and the lower base plate, the two vertical clamping plates are respectively arranged on the left side and the right side of a placing groove, and the two horizontal clamping plates are respectively arranged on the left side and the right side of the placing groove. The two groups of fixed magnetic blocks are fixedly connected to the lower end of the upper cover plate and the upper end of the lower base plate respectively; the driving mechanism is arranged on the upper cover plate and the lower base plate and used for driving the two vertical clamping plates and the two horizontal clamping plates. The upper cover plate is pulled upwards, connection between the upper cover plate and the lower base plate is relieved, a first rack and a second rack are in meshing transmission with a first gear and a second gear respectively, the upper end of a vertical clamping plate and the upper end of a horizontal clamping plate deflect away from the bottom end of a containing groove, and then clamping of the four edges of a painting is relieved at the same time; therefore, the painting extraction step is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of picture frames, in particular to a picture frame which is convenient for replacing paintings. Background Art

[0002] A picture frame is used to protect and display a painting, and is a mounting device designed to enhance its expressiveness.

[0003] The existing technology mostly adopts an angle-adjustable picture frame as disclosed in the announcement number CN218869925U, which includes a base, a mounting frame and a picture frame body, wherein the mounting frame is movably mounted above the base, a fixing frame is rotatably mounted on the other end of the second connecting rod, a card slot is provided on one side of the picture frame body, and a mounting plate is movably mounted in the card slot. This technology uses a motor to synchronously drive the transmission rod and the first connecting rod and the second connecting rod to operate, thereby improving the adjustment accuracy and preventing the picture frame from tilting. However, the above technology still has problems during use due to structural limitations:

[0004] The above-mentioned and existing picture frames are composed of a base plate and a frame plate. When placing a painting, the frame plate is first separated from the base plate, and then the painting is limited above the base plate. Finally, the frame plate is connected to the base plate to complete the placement of the painting. However, since the components for limiting the painting are set separately, when the base plate and the frame plate are separated, the limit on the painting cannot be released synchronously, resulting in a cumbersome step for taking out the painting. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that when a base plate and a frame plate are separated, the limit of the painting cannot be released synchronously, and proposes a picture frame which is convenient for replacing the painting.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A picture frame for facilitating replacement of paintings, comprising a matching upper cover plate and a lower base plate, wherein the upper cover plate and the lower base plate are provided with:

[0008] A placement slot, an installation chamber, a long through slot and a short through slot, wherein the placement slot is opened at the middle end of the lower substrate and is used to place paintings, the installation chamber is opened in the lower substrate, two long through slots and two short through slots are respectively opened on the placement slot, and the two long through slots and two short through slots are both connected to the installation chamber;

[0009] A vertical clamping plate, a horizontal clamping plate and a fixed magnetic block, wherein the two vertical clamping plates are respectively arranged at the left and right sides of the placement slot, and the two horizontal clamping plates are respectively arranged at the upper and lower ends of the placement slot, and the two vertical clamping plates and the two horizontal clamping plates are both L-shaped plate bodies, and the lower ends of the two vertical clamping plates and the lower ends of the two horizontal clamping plates extend into the installation chamber through two long through slots and two short through slots respectively, and the two vertical clamping plates and the two horizontal clamping plates clamp the four sides of the painting through rotational movement, and the two groups of fixed magnetic blocks are respectively fixedly connected to the lower end of the upper cover plate and the upper end of the lower base plate, and the two groups of fixed magnetic blocks attract each other with opposite poles;

[0010] The driving mechanism is arranged on the upper cover plate and the lower base plate, and is used to drive two vertical clamping plates and two horizontal clamping plates.

[0011] Preferably, two vertical rotating shafts and two horizontal rotating shafts are rotatably installed in the installation chamber through a bracket, the lower ends of the two vertical clamping plates are respectively fixedly connected to the two vertical rotating shafts, and the lower ends of the two horizontal clamping plates are respectively fixedly connected to the two horizontal rotating shafts.

[0012] Preferably, the driving mechanism comprises:

[0013] A first opening, a second opening, a first gear and a second gear, wherein the four first openings and the four second openings are all provided on the lower base plate, the two first gears are respectively keyed to two ends of a vertical rotating shaft, and the two second gears are respectively keyed to two ends of a horizontal rotating shaft;

[0014] The first rack and the second rack, four of the first racks and four of the second racks are fixedly connected to the lower end of the upper cover plate, and one first rack and one second rack form a group.

[0015] Preferably, the four first openings and the four second openings are all connected to the installation chamber, and one first opening and one second opening form a group, and the four groups of the first openings and the second openings are respectively located at four right angles of the lower substrate.

[0016] Preferably, four groups of the first racks and the second racks are respectively located at four right angles of the upper cover plate, and one group of the first racks and the second racks are respectively moved into the installation chamber through a group of the first opening and the second opening.

[0017] Preferably, a group of the first rack and the second rack are respectively meshed and connected with a first gear and a second gear that are adjacently arranged vertically.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] Firstly, compared with the prior art, the utility model has a significant advantage in terms of ease of operation. By pulling the upper cover plate upward, the connection between the upper cover plate and the lower base plate can be easily released, simplifying the steps of taking out the painting. At the same time, the first rack and the second rack are respectively meshed with the first gear and the second gear for transmission, so that the upper end of the vertical clamping plate and the upper end of the horizontal clamping plate are deflected away from the bottom end of the placement groove, further reducing the difficulty of taking out the painting.

[0020] Secondly, the utility model has obvious advantages in protecting paintings. Due to the gear and rack meshing transmission mode, the four sides of the painting can be released at the same time during the removal process, effectively avoiding damage to the painting caused by uneven force on one side, and improving the integrity of the painting;

[0021] In addition, the utility model is innovative in structural design. By matching the first rack and the second rack with the first gear and the second gear respectively, automatic deflection of the painting clamping plate is achieved, which saves labor costs and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a picture frame for facilitating replacement of paintings proposed by the utility model Figure 1 ;

[0023] Figure 2 A schematic top view of a picture frame for facilitating replacement of paintings proposed by the utility model Figure 1 ;

[0024] Figure 3 A schematic top view of a picture frame for facilitating replacement of paintings proposed by the utility model Figure 2 ;

[0025] Figure 4 A front section diagram of a picture frame for facilitating replacement of paintings proposed by the utility model Figure 1 .

[0026] In the figure: 1. upper cover plate; 2. lower base plate; 3. placement groove; 4. installation chamber; 5. vertical clamping plate; 6. horizontal clamping plate; 7. fixed magnetic block; 8. vertical rotating shaft; 9. horizontal rotating shaft; 10. first opening; 11. second opening; 12. first gear; 13. second gear; 14. first rack; 15. second rack. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-Figure 4A picture frame for convenient replacement of paintings, comprising an upper cover plate 1 and a lower base plate 2 matched with each other, wherein a placement slot 3, an installation chamber 4, a long through slot and a short through slot are arranged on the upper cover plate 1 and the lower base plate 2, wherein the placement slot 3 is arranged at the middle end of the lower base plate 2, and after the upper cover plate 1 is separated from the lower base plate 2, the painting is first placed in the placement slot 3 to perform preliminary positioning of the painting, and the installation chamber 4 is arranged in the lower base plate 2, wherein two long through slots and two short through slots are respectively arranged on the placement slot 3, and the two long through slots and the two short through slots are communicated with the installation chamber 4;

[0029] The vertical clamping plate 5, the horizontal clamping plate 6 and the fixed magnetic block 7, the two vertical clamping plates 5 are respectively arranged on the left and right sides of the placement slot 3, the two horizontal clamping plates 6 are respectively arranged on the upper and lower ends of the placement slot 3, and the two vertical clamping plates 5 and the two horizontal clamping plates 6 are both L-shaped plates, as shown in the attached Figure 4 As shown, when the vertical clamping plate 5 and the horizontal clamping plate 6 are in the initial state, the upper end of the vertical clamping plate 5 and the upper end of the horizontal clamping plate 6 are flush with the upper end of the lower base plate 2, and the lower end of the vertical clamping plate 5 and the lower end of the horizontal clamping plate 6 extend into the installation chamber 4 through the long through slot and the short through slot respectively, and the two vertical clamping plates 5 and the two horizontal clamping plates 6 clamp the four sides of the painting through rotational movement to avoid damage to the painting caused by uneven force on one side, thereby improving the integrity of the painting, and the two groups of fixed magnetic blocks 7 are fixedly connected to the lower end of the upper cover plate 1 and the upper end of the lower base plate 2 respectively. When the lower end of the upper cover plate 1 and the upper end of the lower base plate 2 are abutted against each other, the upper cover plate 1 and the lower base plate 2 are fixedly connected through the attraction between the two groups of fixed magnetic blocks 7; a driving mechanism, the driving mechanism is arranged on the upper cover plate 1 and the lower base plate 2, and it is used to drive the two vertical clamping plates 5 and the two horizontal clamping plates 6.

[0030] Two vertical rotating shafts 8 and two horizontal rotating shafts 9 are rotatably installed in the installation chamber 4 through a bracket, the lower ends of the two vertical clamping plates 5 are fixedly connected to the two vertical rotating shafts 8 respectively, and the lower ends of the two horizontal clamping plates 6 are fixedly connected to the two horizontal rotating shafts 9 respectively.

[0031] The driving mechanism includes a first opening 10, a second opening 11, a first gear 12 and a second gear 13. The four first openings 10 and the four second openings 11 are all opened on the lower substrate 2. Figure 3 As shown, two first gears 12 are respectively keyed to two ends of a vertical rotating shaft 8, and two second gears 13 are respectively keyed to two ends of a horizontal rotating shaft 9;

[0032] The first rack 14 and the second rack 15 are as shown in the attached Figure 4 As shown, four first racks 14 and four second racks 15 are all fixedly connected to the lower end of the upper cover plate 1, and one first rack 14 and one second rack 15 form a group.

[0033] The four first openings 10 and the four second openings 11 are all connected to the installation chamber 4, and one first opening 10 and one second opening 11 form a group. Figure 2 As shown, four groups of first openings 10 and second openings 11 are respectively located at four right angles of the lower substrate 2 .

[0034] Four groups of first racks 14 and second racks 15 are respectively located at four right angles of the upper cover plate 1, and one group of first racks 14 and second racks 15 are respectively moved into the installation chamber 4 through a group of first openings 10 and second openings 11. Since one group of first racks 14 and second racks 15 are respectively meshed and connected with a first gear 12 and a second gear 13 adjacently arranged vertically, when the first racks 14 and second racks 15 move downward, the upper ends of the vertical clamping plate 5 and the upper ends of the horizontal clamping plate 6 are deflected toward the bottom end of the placement groove 3, thereby clamping the four sides of the painting, and when the first racks 14 and second racks 15 move upward, the upper ends of the vertical clamping plate 5 and the upper ends of the horizontal clamping plate 6 are deflected away from the bottom end of the placement groove 3, thereby releasing the clamping of the four sides of the painting.

[0035] The functional principle of the utility model can be explained through the following operation modes:

[0036] First, separate the upper cover plate 1 from the lower base plate 2, and then put the painting into the placement groove 3, and then put the four sets of first racks 14 and second racks 15 into the four sets of first openings 10 and second openings 11 respectively, and push the upper cover plate 1 downward, so that the upper cover plate 1 drives the four sets of first racks 14 and second racks 15 to move downward;

[0037] When the four groups of first racks 14 and second racks 15 move downward, the first racks 14 and second racks 15 are respectively meshed with the first gear 12 and second gear 13 for transmission, and drive the first gear 12 and second gear 13 to rotate. At the same time, the first gear 12 and second gear 13 respectively drive the vertical shaft 8 and the horizontal shaft 9 to rotate, so that the upper end of the vertical clamping plate 5 and the upper end of the horizontal clamping plate 6 are deflected toward the bottom end of the placement groove 3, thereby clamping the four sides of the painting. At this time, the two groups of fixed magnetic blocks 7 attract each other with opposite poles, so that the upper cover plate 1 is fixedly connected with the lower base plate 2.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A picture frame for facilitating replacement of paintings, comprising a matching upper cover plate (1) and a lower base plate (2), characterized in that: The upper cover plate (1) and the lower base plate (2) are provided with: A placement groove (3), an installation chamber (4), a long through groove and a short through groove, wherein the placement groove (3) is provided at the middle end of the lower base plate (2), and the placement groove (3) is used for placing paintings, and the installation chamber (4) is provided in the lower base plate (2), and the two long through grooves and the two short through grooves are respectively provided on the placement groove (3), and the two long through grooves and the two short through grooves are both connected to the installation chamber (4); A vertical clamping plate (5), a horizontal clamping plate (6) and a fixed magnetic block (7), wherein the two vertical clamping plates (5) are respectively arranged on the left and right sides of the placement slot (3), and the two horizontal clamping plates (6) are respectively arranged on the upper and lower ends of the placement slot (3), and the two vertical clamping plates (5) and the two horizontal clamping plates (6) are both L-shaped plates, and the lower ends of the two vertical clamping plates (5) and the lower ends of the two horizontal clamping plates (6) extend into the installation chamber (4) through two long through slots and two short through slots respectively, and the two vertical clamping plates (5) and the two horizontal clamping plates (6) clamp the four sides of the painting through rotational movement, and the two groups of fixed magnetic blocks (7) are respectively fixedly connected to the lower end of the upper cover plate (1) and the upper end of the lower base plate (2), and the two groups of fixed magnetic blocks (7) attract each other with opposite poles; A driving mechanism is provided on the upper cover plate (1) and the lower base plate (2), and is used to drive two vertical clamping plates (5) and two horizontal clamping plates (6).

2. A picture frame for facilitating replacement of paintings according to claim 1, characterized in that: Two vertical rotating shafts (8) and two horizontal rotating shafts (9) are rotatably installed in the installation chamber (4) through a bracket, the lower ends of the two vertical clamping plates (5) are respectively fixedly connected to the two vertical rotating shafts (8), and the lower ends of the two horizontal clamping plates (6) are respectively fixedly connected to the two horizontal rotating shafts (9).

3. A picture frame for facilitating replacement of paintings according to claim 2, characterized in that: The driving mechanism comprises: A first opening (10), a second opening (11), a first gear (12) and a second gear (13), wherein the four first openings (10) and the four second openings (11) are all provided on the lower base plate (2), the two first gears (12) are respectively key-connected to two ends of a vertical rotating shaft (8), and the two second gears (13) are respectively key-connected to two ends of a horizontal rotating shaft (9); A first rack (14) and a second rack (15), four of the first racks (14) and four of the second racks (15) are fixedly connected to the lower end of the upper cover plate (1), and one first rack (14) and one second rack (15) form a group.

4. A picture frame for facilitating replacement of paintings according to claim 3, characterized in that: The four first openings (10) and the four second openings (11) are all connected to the installation chamber (4), and one first opening (10) and one second opening (11) form a group. The four groups of the first openings (10) and the second openings (11) are respectively located at four right angles of the lower substrate (2).

5. A picture frame for facilitating replacement of paintings according to claim 4, characterized in that: Four groups of the first racks (14) and the second racks (15) are respectively located at four right angles of the upper cover plate (1), and one group of the first racks (14) and the second racks (15) are respectively moved into the installation chamber (4) through a group of the first openings (10) and the second openings (11).

6. A picture frame for facilitating replacement of paintings according to claim 3, characterized in that: A set of the first rack (14) and the second rack (15) are respectively meshed and connected with a first gear (12) and a second gear (13) which are adjacently arranged vertically.

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