Mounting structure of rear projection semi-hard screen

Abstract

The utility model relates to a mounting structure of a rear projection semi-hard screen, which is arranged at the joint of the semi-hard screen and a frame and comprises a positioning plate fixed with the frame, a locking component is fixedly connected to the edge of the semi-hard screen, and displacement generated between the locking component and the positioning plate is compensated through a buffer structure. Deformation displacement, caused by the semi-hard screen, between the positioning plate and the locking structure is compensated through the buffering structure, meanwhile, impact force generated in the transportation process is buffered, and the service life of the semi-hard screen is prolonged.

Description

Technical Field

[0001] The utility model relates to a mounting structure, and more specifically, to a mounting structure for a rear projection semi-rigid screen. Background Art

[0002] The material of a semi-rigid screen will expand or contract when the temperature changes. If a rigid connection is used during installation, the screen's flatness cannot be guaranteed during the thermal expansion and contraction process. Currently, in order to improve the phenomenon of screen deformation caused by thermal expansion and contraction, adjustments are generally made when the temperature changes to ensure that the semi-rigid screen is evenly tightened. However, this adjustment method is more cumbersome.

[0003] Alternatively, specific professional equipment can be used to ensure that the semi-rigid curtain is always at a specific temperature state. This method has a more complex overall structure and high maintenance costs. Utility Model Content

[0004] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: a mounting structure for a rear projection semi-rigid screen, which is arranged at the connection between the semi-rigid screen and the frame, including: a positioning plate fixed to the frame, a locking assembly fixedly connected to the edge of the semi-rigid screen, and a buffer structure is used to compensate for the displacement generated between the locking assembly and the positioning plate.

[0005] Preferably, the locking assembly includes: a front clamping plate and a rear clamping plate, both of which are provided with a clamping portion cooperating with the semi-rigid curtain, and the two clamping portions are moved toward each other by cooperating with the front clamping plate and the rear clamping plate through a fastener to clamp the semi-rigid curtain.

[0006] Preferably, the buffer structure includes: a tension spring, the front clamping plate is provided with a buffer portion cooperating with one end of the tension spring, and the positioning plate is provided with an adjustment portion cooperating with the other end of the tension spring.

[0007] Preferably, the positioning plate is provided with a positioning portion, the frame is provided with a positioning groove cooperating with the positioning portion, the positioning groove is provided with an adjusting block, the adjusting block extends to the outside of the positioning groove and is provided with a threaded portion, the positioning plate is provided with a waist-shaped hole cooperating with the threaded portion, and the threaded portion passes through the waist-shaped hole and is cooperating with a nut.

[0008] Preferably, a rubber strip is provided at the connection between the frame and the semi-rigid curtain, and the frame is provided with a strip groove connected to the rubber strip.

[0009] Preferably, a support frame is fixedly connected to the outside of the frame, and the connection between the support frame and the frame is fixedly connected by a locking plate and bolts.

[0010] Preferably, the frame is a rectangular frame formed by four cross bars, and the connections between the cross bars are fixedly connected by L-shaped plates.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The buffer structure compensates for the deformation displacement between the positioning plate and the locking structure caused by the semi-rigid curtain, and also buffers the impact force generated during transportation, thereby increasing the service life of the semi-rigid curtain.

[0013] 2. The front clamping piece and the rear clamping piece clamp the semi-rigid curtain to reduce the contact area.

[0014] 3. Under the action of the tension spring, the semi-rigid curtain can maintain its straightness when the temperature changes, which reduces the difficulty of adjustment. At the same time, it has a simple structure and low maintenance cost.

[0015] 4. The initial positioning is achieved by cooperating between the positioning portion of the positioning plate and the positioning groove of the frame. At the same time, the threaded portion of the adjusting block cooperates with the nut to achieve locking, thereby improving the fixing effect of the positioning plate and simplifying the installation difficulty.

[0016] 5. The rubber strip is in contact with the semi-rigid curtain to reduce the rigid impact during the use and transportation of the semi-rigid curtain and extend the service life of the semi-rigid curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure diagram of the installation structure of the rear projection semi-rigid screen of the utility model is shown as follows Figure 1 ;

[0018] Figure 2 The overall structure diagram of the installation structure of the rear projection semi-rigid screen of the utility model is shown as follows Figure 2 ;

[0019] Figure 3 This is a partial structural diagram of the installation structure of the rear projection semi-rigid screen of the utility model;

[0020] Figure 4 This is an enlarged view of the structure at point A of the installation structure of the rear projection semi-rigid screen of the present invention;

[0021] Figure 5 This is a partial structural cross-sectional view of the installation structure of the rear projection semi-rigid screen of the utility model;

[0022] Figure 6 This is an enlarged view of the structure at position B of the installation structure of the rear projection semi-rigid screen of the present invention.

[0023] In the figure: 1. Semi-rigid curtain; 2. Frame; 201. Positioning slot; 3. Positioning plate; 301. Adjustment unit; 302. Positioning unit; 4. Front clamping plate; 401. Buffer unit; 5. Rear clamping plate; 6. Fastener; 7. Tension spring; 8. Rubber strip; 9. Support frame; 10. Locking plate; 11. L-shaped plate; 12. Adjustment rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Figures 1 to 6 As shown, the utility model provides a technical solution: a mounting structure for a rear projection semi-rigid screen, which is arranged at the connection between the semi-rigid screen 1 and the frame 2. The frame 2 is a rectangular frame formed by a plurality of cross bars, and the connection between the cross bars is connected by an L-shaped plate 1. The L-shaped plate 1 is arranged at the butt joint of the two cross bars and is fixed to the two cross bars through the L-shaped plate 1. The cross bars are provided with placement grooves for placing the L-shaped plates, thereby realizing that four cross bars are surrounded to form a rectangular frame.

[0026] The positioning plate 3 fixed to the frame 2 is fixedly connected to a locking assembly at the edge of the semi-rigid curtain 1. A plurality of positioning plates 3 and locking assemblies can be provided, mainly to drive the semi-rigid curtain 1 to be fixed in the frame 2.

[0027] The locking assembly includes a front clamping piece 4 and a rear clamping piece 5. Each piece has a clamping portion that mates with the semi-rigid curtain 1. Fasteners 6 (primarily bolts and nuts) engage the front and rear clamping pieces 4 and 5, allowing the two clamping portions to move toward each other, clamping the semi-rigid curtain 1. The front and rear clamping pieces 4 and 5 clamp the semi-rigid curtain 1, minimizing contact area and reducing external influences on the semi-rigid curtain 1.

[0028] The buffer structure compensates for the displacement between the locking assembly and the positioning plate 3. The buffer structure includes: a tension spring 7, a buffer portion 401 provided on the front clamping plate 4 for cooperating with one end of the tension spring 7, and an adjustment portion 301 provided on the positioning plate 3 for cooperating with the other end of the tension spring 7.

[0029] Tension springs 7 are arranged around the semi-rigid screen 1. When the semi-rigid screen 1 expands or contracts due to temperature, the tension springs 7 compensate for the displacement caused by the deformation of the semi-rigid screen 1, thereby ensuring the screen flatness of the semi-rigid screen 1.

[0030] In order to facilitate the fixation of the positioning plate 3, the positioning plate 3 is provided with a positioning portion 302, the frame 2 is provided with a positioning groove 201 that cooperates with the positioning portion 302, the positioning groove 201 (T-shaped groove) is provided with an adjusting block, the adjusting block extends to the outside of the positioning groove 201 and is provided with a threaded portion, the positioning plate 3 is provided with a waist-shaped hole that cooperates with the threaded portion, and the threaded portion passes through the waist-shaped hole and is cooperated with a nut.

[0031] The positioning portion 302 cooperates with the positioning groove 201 only to achieve better positioning. The threaded portion of the adjustment block cooperates with the nut to fix the position of the positioning plate 3 and improve the overall installation efficiency.

[0032] In order to reduce the rigid impact of the semi-rigid curtain 1 during use and transportation and improve the service life of the semi-rigid curtain 1, a rubber strip 8 is provided at the connection between the frame 2 and the semi-rigid curtain 1, and the frame 2 is provided with a strip groove connected to the rubber strip 8, and the rubber strip 8 is fixed in the strip groove by gluing.

[0033] The outer side of the frame 2 is fixedly connected with a support frame 9, and the connection between the support frame 9 and the frame 2 is fixedly connected with bolts through a locking plate 10. The support frame 9 mainly supports the frame 2, and the bottom of the support frame 9 is fixedly connected to the ground by screws.

[0034] The top of the support frame 9 is hinged with an adjustment frame, and the bottom of the adjustment frame is fixedly connected to one end of a support rod, and the other end of the support rod is adjustably connected to a telescopic frame. The telescopic frame is hinged to the adjusting rod 12, and the support rod is provided with a limit groove, and a displacement block is matched in the limit groove. The displacement block is fixedly connected to the telescopic frame by a bolt. By adjusting the length between the telescopic frame and the support rod, the angle between the adjustment frame and the support frame 9 can be adjusted. The bottom of the adjustment frame is hinged with a fixed seat, and the fixed seat is fixedly connected with a plurality of screws, and the fixed seat is fixedly connected to the ground by the screws.

[0035] like Figures 1 to 6 As shown, during operation, the support frame 9 is driven by screws to be fixedly connected to the ground, and then the adjustment frame is driven to rotate around the hinge point and fixedly connected to the ground through the fixing seat.

[0036] After the support frame 9 and the adjustment frame are fixed, the positioning portion 302 of the positioning plate 3 is driven to move along the positioning groove 201 of the frame 2 to adjust the fixed position of the semi-rigid curtain 1, and then the front clamping piece 4 and the rear clamping piece 5 are driven to cooperate with the semi-rigid curtain 1 to achieve clamping, thereby completing the assembly of the semi-rigid curtain 1.

[0037] After the frame 2 and the semi-rigid screen 1 are assembled, the frame 2 and the support frame 9 are fixedly connected through the locking plate 10, and the installation of the entire rear projection semi-rigid screen 1 is completed.

[0038] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A mounting structure for a rear projection semi-rigid screen, arranged at the connection between the semi-rigid screen and the frame, characterized in that: include: A positioning plate is fixed to the frame, and a locking component is fixedly connected to the edge of the semi-rigid curtain, and the displacement generated between the locking component and the positioning plate is compensated by the buffer structure.

2. The installation structure of the rear projection semi-rigid screen according to claim 1, characterized in that: The locking assembly includes: a front clamping plate and a rear clamping plate, each of which is provided with a clamping portion that cooperates with the semi-rigid curtain. The fastener cooperates with the front clamping plate and the rear clamping plate to achieve the two clamping portions moving toward each other to clamp the semi-rigid curtain.

3. The installation structure of the rear projection semi-rigid screen according to claim 2, characterized in that: The buffer structure includes a tension spring, the front clamping piece is provided with a buffer portion matched with one end of the tension spring, and the positioning plate is provided with an adjusting portion matched with the other end of the tension spring.

4. The installation structure of the rear projection semi-rigid screen according to claim 1, characterized in that: The positioning plate is provided with a positioning portion, the frame is provided with a positioning groove cooperating with the positioning portion, the positioning groove is provided with an adjustment block, the adjustment block extends to the outside of the positioning groove and is provided with a threaded portion, the positioning plate is provided with a waist-shaped hole cooperating with the threaded portion, and the threaded portion passes through the waist-shaped hole and is matched with a nut.

5. The installation structure of the rear projection semi-rigid screen according to claim 1, characterized in that: A rubber strip is provided at the connection between the frame and the semi-rigid curtain, and the frame is provided with a strip groove connected with the rubber strip.

6. The installation structure of the rear projection semi-rigid screen according to claim 1, characterized in that: A support frame is fixedly connected to the outside of the frame, and the connection between the support frame and the frame is fixedly connected by a locking plate and bolts.

7. The installation structure of the rear projection semi-rigid screen according to claim 1, characterized in that: The frame is a rectangular frame formed by four cross bars, and the connections between the cross bars are fixedly connected by L-shaped plates.

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