Thangka canvas tension adjusting frame

Abstract

This utility model relates to the technical field of canvas adjustment frames and discloses a Thangka canvas tension adjustment frame, including a canvas frame with a fixing mechanism. Several connecting frames are slidably installed side by side on the four sides of the canvas frame, with the connecting frames on opposite sides of the canvas frame facing each other. A universal traction line passes through the connecting holes and the canvas to fix the canvas. Each connecting frame independently controls the tension of a portion of the canvas edge, allowing the adjustment frame to adjust the tension according to the specific conditions of the paint thickness and humidity on the canvas. Benefiting from the fact that both the horizontal and vertical threaded axes can simultaneously control the threaded seats on opposite sides of the canvas frame, by rotating the horizontal or vertical threaded axis, the connecting frames on opposite sides of the canvas frame move in the opposite direction under the support of the threaded seats, thereby pulling the two sides of the canvas to adjust the canvas tension. This adjustment method is more efficient and convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of canvas adjustment frames, specifically a Thangka canvas tension adjustment frame. Background Technology

[0002] Thangka canvas is a basic material for painting Thangkas. As the basic carrier of Thangka art, it plays an artistic supporting role. Thangka canvas needs to be constrained when used, so a Thangka canvas tension adjustment frame is required.

[0003] Chinese Patent Publication No. CN203468140U discloses a tension adjustment frame for Thangka canvas, comprising a rectangular rigid first frame located on the inner side and an elastic second frame located on the outer side. The second frame includes a frame portion surrounding the first frame. The first frame and the frame portions of the second frame are connected by matching grooves and protrusions. The tension adjustment mechanism has a rotating shaft perpendicular to the frame surface and is disposed on the rear side of the frame. When the tension adjustment mechanism rotates around the rotating shaft, the distance between the frame portions of the first and second frames changes. One objective of this invention is to provide a canvas frame with a quick and simple method for adjusting the canvas tension.

[0004] The aforementioned adjustment frame has the effect of quickly adjusting the canvas tension, but the thickness and moisture of the paint on the canvas are usually unevenly distributed. The traditional adjustment frame usually uses only one traction line on all four sides, which means that it can only adjust the overall tension of the canvas, resulting in wrinkles or tears on the canvas. At the same time, because it is impossible to adjust the tension on both sides of the canvas simultaneously, the canvas may bend during adjustment, causing the paint to mix. Therefore, a Thangka canvas tension adjustment frame is needed. Utility Model Content

[0005] The purpose of this utility model is to provide a tension adjustment frame for Thangka canvas, so as to solve the problems that existing adjustment frames cannot make targeted adjustments to the canvas according to the thickness and humidity of the paint, and that the tension adjustment on both sides of the canvas is not synchronized.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a Thangka canvas tension adjustment frame, comprising a canvas frame, wherein a fixing mechanism is provided on the canvas frame; the fixing mechanism includes a plurality of limiting plates, which are fixedly installed side by side at the four sides of the canvas frame, and a plurality of connecting brackets are slidably installed side by side through the four sides of the canvas frame, wherein a plurality of connecting holes are provided at the front end of the connecting brackets, and a buffer spring is fixedly installed between the connecting brackets and the canvas frame, and a canvas guard plate is fixedly installed at the rear of the canvas frame.

[0007] Preferably, the limiting plates on opposite sides of the canvas frame are opposite to each other, and the connecting frame is in close contact with the limiting plates.

[0008] Preferably, the connecting frame is composed of a U-shaped frame welded to a vertical plate with a plurality of connecting holes, and the plurality of connecting holes are equally spaced at the front end of the connecting frame.

[0009] Preferably, the two ends of the buffer spring are fixedly connected to the canvas frame and the connecting frame, respectively, and the canvas guard is composed of a breathable mesh panel.

[0010] Preferably, an adjustment mechanism is provided between the limiting plate and the connecting frame. The adjustment mechanism includes several rotating seats and several threaded seats. The rotating seats are fixedly installed on one side of the connecting frame, and the threaded seats are fixedly installed on one side of the limiting plate. A threaded horizontal shaft is rotatably installed through two of the rotating seats, and a threaded vertical shaft is rotatably installed through the upper and lower rotating seats. Both ends of the threaded vertical shaft and the threaded horizontal shaft are provided with external threads.

[0011] Preferably, the limiting plate has a strip-shaped groove, and the threaded seat is embedded and slidably installed in the strip-shaped groove.

[0012] Preferably, the two external threads have opposite thread directions, and both the thread transverse axis and the thread longitudinal axis are threadedly connected to the two thread seats through the two external threads.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1) The Thangka canvas tension adjustment frame controls several connecting frames to slide side by side at the four sides of the canvas frame, and the connecting frames on opposite sides of the canvas frame are opposite to each other. The universal traction line passes through the connecting holes and the canvas to fix the canvas. Each connecting frame independently controls the tension of a part of the canvas edge, so that the adjustment frame can adjust the tension according to the specific conditions of the paint thickness and humidity on the canvas.

[0014] 2) The tension adjustment frame for Thangka canvas benefits from the fact that both the horizontal and vertical threads can simultaneously control the threaded seats on the opposite sides of the canvas frame. By rotating the horizontal or vertical threads, the connecting frame on the opposite side of the canvas frame moves in the opposite direction under the support of the threaded seats, thereby pulling the two sides of the canvas to adjust the tension of the canvas. This adjustment method is more efficient and convenient. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a Thangka canvas tension adjustment frame according to an embodiment of the present utility model; Figure 2 This is a three-dimensional structural exploded view of the fixing mechanism in an embodiment of this utility model; Figure 3This is a three-dimensional structural diagram of the connecting frame in an embodiment of the present utility model; Figure 4 This is a three-dimensional structural exploded view of the adjustment mechanism in the embodiment of this utility model; Figure 5 This is a three-dimensional structural diagram of the external thread in an embodiment of this utility model.

[0016] In the diagram: 1. Canvas frame; 2. Fixing mechanism; 201. Limiting plate; 202. Connecting frame; 203. Connecting hole; 204. Buffer spring; 205. Canvas guard plate; 3. Adjustment mechanism; 301. Rotary seat; 302. Threaded seat; 303. Threaded horizontal axis; 304. Threaded vertical axis; 305. External thread. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0018] Combination Figures 1-3 A Thangka canvas tension adjustment frame includes a canvas frame 1, on which a fixing mechanism 2 is provided; the fixing mechanism 2 includes several limiting plates 201, which are fixedly installed side by side at the four sides of the canvas frame 1, and several connecting brackets 202 are slidably installed side by side through the four sides of the canvas frame 1, with several connecting holes 203 opened side by side at the front end of the connecting brackets 202, and a buffer spring 204 is fixedly installed between the connecting brackets 202 and the canvas frame 1, and a canvas guard plate 205 is fixedly installed at the rear of the canvas frame 1.

[0019] The limiting plates 201 on opposite sides of the canvas frame 1 are opposite to each other, and the connecting frame 202 is close to the limiting plates 201, so that the force direction on the opposite sides of the canvas is opposite after connection. The connecting frame 202 is composed of a U-shaped frame and a vertical plate with several connecting holes 203 welded together. Several connecting holes 203 are equally spaced at the front end of the connecting frame 202. In use, the canvas is fixed by passing a traction line through the connecting holes 203 and the canvas. The two ends of the buffer spring 204 are fixedly connected to the canvas frame 1 and the connecting frame 202 respectively. The buffer spring 204 is used to allow the connecting frame 202 to return to its original position naturally without external force, so as to prevent the connecting frame 202 from shaking randomly in the canvas frame 1. The canvas guard plate 205 is composed of a breathable mesh plate to ensure the breathability of the canvas during use. Example 2

[0020] See Figure 4 and Figure 5 An adjustment mechanism 3 is provided between the limiting plate 201 and the connecting frame 202. The adjustment mechanism 3 includes several rotating seats 301 and several threaded seats 302. The rotating seats 301 are fixedly installed on one side of the connecting frame 202, and the threaded seats 302 are fixedly installed on one side of the limiting plate 201. A threaded horizontal shaft 303 is rotatably installed through the two rotating seats 301, and a threaded vertical shaft 304 is rotatably installed through the upper and lower rotating seats 301. Both ends of the threaded vertical shaft 304 and the threaded horizontal shaft 303 are provided with external threads 305.

[0021] The limiting plate 201 has a strip-shaped groove, and the threaded seat 302 is embedded and slidably installed in the strip-shaped groove. The two external threads 305 have opposite thread directions, and the threaded horizontal axis 303 and the threaded vertical axis 304 are both threadedly connected to the two threaded seats 302 through the two external threads 305. Benefiting from the fact that the threaded horizontal axis 303 and the threaded vertical axis 304 can simultaneously control the threaded seats 302 on the opposite sides of the canvas frame 1, in use, by rotating the threaded horizontal axis 303 or the threaded vertical axis 304, the connecting frame 202 on the opposite sides of the canvas frame 1 moves in the opposite direction under the support of the threaded seat 302, thereby pulling the two sides of the canvas to adjust the tension of the canvas.

[0022] In actual operation, several connecting frames 202 are controlled to slide side by side at the four sides of the canvas frame 1, and the connecting frames 202 on opposite sides of the canvas frame 1 are opposite to each other. When in use, the universal traction line passes through the connecting hole 203 and the canvas to fix the canvas. Each connecting frame 202 independently controls the tension of the edge of the canvas part, so that the adjustment frame can adjust the tension according to the specific situation of the paint thickness and humidity on the canvas. Benefiting from the fact that both the threaded horizontal axis 303 and the threaded vertical axis 304 can simultaneously control the threaded seats 302 on the opposite sides of the canvas frame 1, during use, by rotating the threaded horizontal axis 303 or the threaded vertical axis 304, the connecting frame 202 on the opposite sides of the canvas frame 1 moves in the opposite direction under the support of the threaded seats 302, thereby pulling the two sides of the canvas to adjust the canvas tension. Moreover, this adjustment method is more efficient and convenient.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Thangka canvas tension adjustment frame, comprising a canvas frame (1), characterized in that: The canvas frame (1) is provided with a fixing mechanism (2); The fixing mechanism (2) includes several limiting plates (201), which are fixedly installed side by side at the four sides of the canvas frame (1). Several connecting frames (202) are slidably installed side by side through the four sides of the canvas frame (1). Several connecting holes (203) are opened side by side at the front end of the connecting frames (202). A buffer spring (204) is fixedly installed between the connecting frame (202) and the canvas frame (1). A canvas guard plate (205) is fixedly installed at the rear of the canvas frame (1).

2. The tension adjustment frame for Thangka canvas according to claim 1, characterized in that: The limiting plates (201) on opposite sides of the canvas frame (1) are opposite to each other, and the connecting frame (202) is in close contact with the limiting plates (201).

3. The tension adjustment frame for Thangka canvas according to claim 2, characterized in that: The connecting frame (202) is composed of a U-shaped frame and a vertical plate with several connecting holes (203) welded together. The several connecting holes (203) are equally spaced at the front end of the connecting frame (202).

4. The tension adjustment frame for Thangka canvas according to claim 3, characterized in that: The two ends of the buffer spring (204) are fixedly connected to the canvas frame (1) and the connecting frame (202) respectively, and the canvas guard plate (205) is composed of a breathable mesh plate.

5. A Thangka canvas tension adjustment frame according to claim 4, characterized in that: An adjustment mechanism (3) is provided between the limiting plate (201) and the connecting frame (202). The adjustment mechanism (3) includes several rotating seats (301) and several threaded seats (302). The rotating seats (301) are fixedly installed on one side of the connecting frame (202), and the threaded seats (302) are fixedly installed on one side of the limiting plate (201). A threaded horizontal shaft (303) is rotatably installed through two of the rotating seats (301), and a threaded vertical shaft (304) is rotatably installed through the rotating seats (301) on both the upper and lower sides. Both ends of the threaded vertical shaft (304) and the threaded horizontal shaft (303) are provided with external threads (305).

6. The tension adjustment frame for Thangka canvas according to claim 5, characterized in that: The limiting plate (201) has a strip-shaped groove, and the threaded seat (302) is embedded and slidably installed in the strip-shaped groove.

7. A Thangka canvas tension adjustment frame according to claim 6, characterized in that: The two external threads (305) have opposite thread directions, and the thread horizontal axis (303) and the thread vertical axis (304) are both threadedly connected to the two thread seats (302) through the two external threads (305).

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