Projector support convenient to store

Abstract

The utility model discloses a projector support convenient to store, which relates to the technical field of projector supports, and comprises a placing box, the bottom surface of the placing box is connected with a support body, a fixing block is arranged outside the support body, a sucker is arranged at the bottom in the fixing block, a vacuum pump is arranged in the fixing block, and the vacuum pump is connected with the support body. The outer wall of the vacuum pump is connected with a sliding plate, the sliding plate divides the interior of the fixing block into an upper part and a lower part, the outer wall of the sliding plate is connected with a sealing ring, the sealing ring abuts against the inner wall of the fixing block, the top face of the suction cup is connected with an exhaust hole of the vacuum pump, and the outer wall of the fixing block is connected with a one-way exhaust valve. One end of the one-way exhaust valve penetrates through the outer wall of the fixed block and extends into the fixed block, and the one-way exhaust valve is arranged above the sliding plate; the fixing stability of the support body is improved by increasing the attaching degree of the suction cup and the contact face.

Description

Technical Field

[0001] This utility model relates to the field of projector stand technology, specifically a projector stand that is easy to store. Background Technology

[0002] With the rapid advancement of technology, projectors have become increasingly functional and compact, greatly improving their portability. This has led to their widespread use in mobile work and learning scenarios. For example, business people often need to use projectors to present plans when conducting business negotiations; teachers may also bring projectors to different classrooms for teaching. The dissemination of digital content is becoming more and more common, and people's need to share visual information anytime, anywhere has made projectors an important tool.

[0003] For example, an existing patent (publication number: CN219606617U) discloses a projector bracket, including a support frame and a fixed shell. The bottom of the inner cavity of the fixed shell is provided with a fixing groove. The inner cavity of the fixing groove is provided with a bidirectional threaded rod. Sleeves are threaded to both sides of the bidirectional threaded rod. A clamping plate is fixed to the top of the sleeve. A bottom shell is fixed to the bottom of the support frame. A gear is rotatably connected to the inner cavity of the bottom shell. A first rack plate is meshed on one side of the gear, and a second rack plate is meshed on the other side of the gear. A suction cup is fixed to the bottom of the first rack plate, a first mounting plate is fixed to the top of the first rack plate, and a second mounting plate is fixed to the top of the second rack plate.

[0004] However, the above-mentioned projector bracket design still has some drawbacks in actual use: the above device uses a rack to press down on the suction cup and uses the suction cup to attach and fix it. However, due to the simple shape of the rack, the contact surface with the suction cup is limited during the downward movement. Air is easily left in the suction cup, the degree of adhesion with the fixing surface is low, the fixing effect is poor, and it is easy to cause the projector to be unstable, resulting in economic losses.

[0005] To address this issue, we designed an easy-to-store projector stand. Utility Model Content

[0006] The purpose of this invention is to provide a projector stand that is easy to store, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a projector stand that is easy to store, including a placement box. The bottom surface of the placement box is connected to the stand body. A fixing block is provided outside the stand body. A suction cup is provided at the bottom inside the fixing block. A vacuum pump is located inside the fixing block. A sliding plate is connected to the outer wall of the vacuum pump. The sliding plate divides the interior of the fixing block into upper and lower parts. A sealing ring is connected to the outer wall of the sliding plate. The sealing ring abuts against the inner wall of the fixing block. The top surface of the suction cup is connected to the air extraction port of the vacuum pump. A one-way exhaust valve is connected to the outer wall of the fixing block. One end of the one-way exhaust valve extends through the outer wall of the fixing block into the interior of the fixing block. The one-way exhaust valve is located above the sliding plate.

[0008] Furthermore, a bidirectional lead screw is provided inside the placement box. One end of the bidirectional lead screw is connected to a rotating shaft, and the other end of the rotating shaft is connected to a rotating handle. The other end is rotatably connected inside the placement box. Both ends of the bidirectional lead screw are threadedly connected to threaded blocks. A clamping plate is connected to the top surface of the threaded block. A guide component is provided at one end of the threaded block. The clamping plate is located inside the placement box.

[0009] Furthermore, a groove is provided in the fixed block, and a slider is slidably connected in the groove. The other end of the slider is connected to the outer wall of the sliding plate, and part of the sealing ring extends into the groove and abuts against the inner wall of the groove.

[0010] Furthermore, the inner bottom wall of the placement box is provided with a slot, and the bidirectional lead screw is disposed in the slot.

[0011] Furthermore, a connecting ring is connected to the outer wall of the bracket body, and a universal ball is rotatably connected inside the connecting ring. A first support frame is connected to the outer wall of the universal ball, and the other end of the first support frame is connected to the outer wall of the fixed block.

[0012] Furthermore, a bottom pad is connected to the bottom surface of the bracket body, and a second support frame is threaded onto the bottom pad. The other end of the second support frame is inserted into the outer wall of the first support frame.

[0013] Furthermore, the guide assembly includes a sliding block, the inner wall of the hollow groove is provided with a sliding groove, the sliding block is slidably connected in the sliding groove, and the other end of the sliding block is connected to the outer wall of the threaded block.

[0014] Furthermore, the sealing ring is made of rubber.

[0015] The beneficial effects of this utility model are as follows: When the vacuum pump is started, the air between the suction cup and the contact surface is drawn to the top of the sliding plate. Since the top of the fixed block is equipped with a one-way exhaust valve, when the gas is discharged from the vacuum pump to the top of the fixed block, due to the abnormal air pressure inside the fixed block, the one-way exhaust valve will automatically discharge the excess air outside the fixed block to maintain the air pressure balance inside the fixed block. As the air between the suction cup and the contact surface is gradually discharged, the suction cup and the contact surface gradually come into contact. Since the outer wall of the vacuum pump is connected to the sliding plate, and the outer wall of the sliding plate is connected to the slider, after the vacuum pump is started, the vacuum pump drives the slider to gradually slide down until the suction cup and the contact surface come into contact. At this time, the suction cup is firmly fixed to the contact surface, avoiding the presence of too much air in the suction cup, increasing the degree of contact between the suction cup and the contact surface, and improving the stability of the bracket body when it is fixed.

[0016] The beneficial effects of this utility model are: the projector is placed between two clamping plates, and then the handle outside the placement box is rotated to bring the two clamping plates closer together, fixing the projector between the two clamping plates. A protective pad is provided on the opposite side of the two clamping plates to avoid damage to the projector. The operation is simple and improves the convenience of using the projector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the fixing block in this utility model;

[0019] Figure 3 This is a schematic diagram of the bidirectional lead screw in this utility model;

[0020] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0022] In the diagram: 1. Placement box; 2. Empty slot; 3. Clamping plate; 301. Threaded block; 302. Sliding block; 303. Sliding groove; 4. Support body; 401. First support frame; 402. Second support frame; 5. Fixing block; 501. Sliding groove; 502. Sliding block; 6. Suction cup; 7. Sliding plate; 701. Sealing ring; 8. Vacuum pump; 9. One-way exhaust valve; 10. Two-way lead screw; 11. Rotary handle; 12. Rotating shaft. Detailed Implementation

[0023] 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.

[0024] Please see Figure 2 as well as Figure 4 This utility model provides a technical solution: a projector stand that is easy to store, including a placement box 1, a stand body 4 connected to the bottom surface of the placement box 1, a fixing block 5 set outside the stand body 4, a suction cup 6 set at the bottom inside the fixing block 5, a vacuum pump 8 inside the fixing block 5, a sliding plate 7 connected to the outer wall of the vacuum pump 8, the sliding plate 7 dividing the fixing block 5 into upper and lower chambers, a sealing ring 701 connected to the outer wall of the sliding plate 7, the sealing ring 701 abutting against the inner wall of the fixing block 5, the top surface of the suction cup 6 connected to the air extraction hole of the vacuum pump 8, the exhaust end of the vacuum pump 8 set in the upper chamber inside the fixing block 5, a one-way exhaust valve 9 connected to the outer wall of the fixing block 5, one end of the one-way exhaust valve 9 extending through the outer wall of the fixing block 5 into the upper chamber inside the fixing block 5, the one-way exhaust valve 9 set above the sliding plate 7, and the sealing ring 701 being made of rubber.

[0025] In practice, the vacuum pump 8 is started to draw the air between the suction cup 6 and the contact surface to the top of the sliding plate 7. Since the top of the fixed block 5 is equipped with a one-way exhaust valve 9, when the gas is discharged from the vacuum pump 8 to the top of the fixed block 5, the one-way exhaust valve 9 will automatically discharge the excess air from the fixed block 5 due to the abnormal air pressure inside the fixed block 5, thus maintaining the air pressure balance inside the fixed block 5. As the air between the suction cup 6 and the contact surface is gradually discharged, the suction cup 6 gradually adheres to the contact surface. Since the outer wall of the vacuum pump 8 is connected to the sliding plate 7, and the outer wall of the sliding plate 7 is connected to the slider 502, after the vacuum pump 8 is started, the vacuum pump 8 drives the slider 502 to gradually slide downward until the suction cup 6 adheres to the contact surface. At this time, the suction cup 6 is firmly fixed to the contact surface, avoiding the presence of too much air in the suction cup 6, increasing the degree of adhesion between the suction cup 6 and the contact surface, and improving the stability of the bracket body 4 when it is fixed.

[0026] See Figure 3 as well as Figure 5As shown, a bidirectional lead screw 10 is provided inside the placement box 1. One end of the bidirectional lead screw 10 is connected to a rotating shaft 12, and the other end of the rotating shaft 12 is connected to a rotating handle 11. The other end is rotatably connected inside the placement box 1. Both ends of the bidirectional lead screw 10 are threadedly connected to threaded blocks 301. A clamping plate 3 is connected to the top surface of the threaded block 301. A guide component is provided at one end of the threaded block 301. The clamping plate 3 is located inside the placement box 1. A slot 2 is opened in the inner bottom wall of the placement box 1. The bidirectional lead screw 10 is located in the slot 2. The guide component includes a sliding block 302. A sliding groove 303 is opened in the inner wall of the slot 2. The sliding block 302 is slidably connected in the sliding groove 303. The other end of the sliding block 302 is connected to the outer wall of the threaded block 301.

[0027] In practice, the projector is placed between the two clamping plates 3, and then the handle 11 outside the placement box 1 is rotated to bring the two clamping plates 3 closer together, fixing the projector between the two clamping plates 3. A protective pad made of rubber is provided on the opposite side of the two clamping plates 3 to prevent damage to the projector. The operation is simple and improves the convenience of using the projector. At the same time, the sliding block 302 slides in the sliding groove 303, which can guide the threaded block 301 and prevent the threaded block 301 from rotating with the rotation of the bidirectional lead screw 10.

[0028] See Figure 2 The fixed block 5 has a groove 501, and a slider 502 is slidably connected in the groove 501. The other end of the slider 502 is connected to the outer wall of the sliding plate 7. A portion of the sealing ring 701 extends into the groove 501 and abuts against the inner wall of the groove 501.

[0029] In practice, the sliding plate 7 divides the fixed block 5 into two chambers. When the vacuum pump 8 is started, the air between the suction cup 6 and the contact surface will be drawn into the upper chamber of the fixed block 5 by the vacuum pump 8. Since the outer wall of the sliding plate 7 is provided with a sealing ring 701, the upper chamber is kept in a sealed state, and excess air can be discharged from the fixed block 5 through the one-way exhaust valve 9, so as to maintain the contact state between the suction cup 6 and the contact surface.

[0030] See Figure 1 A connecting ring is connected to the outer wall of the bracket body 4, and a universal ball is rotatably connected inside the connecting ring. A first support frame 401 is connected to the outer wall of the universal ball. The other end of the first support frame 401 is connected to the outer wall of the fixing block 5. A bottom pad is connected to the bottom surface of the bracket body 4, and a second support frame 402 is threadedly connected to the bottom pad. The other end of the second support frame 402 is inserted into the outer wall of the first support frame 401, providing a certain support for the first support frame 401. At the same time, a snap-fit ​​block is connected to the end of the second support frame 402 near the first support frame 401. Snap-fit ​​grooves are evenly spaced on the first support frame 401, and the snap-fit ​​block is adapted to the snap-fit ​​groove.

[0031] In practice, since the first support frame 401 is connected to the universal ball, it is easy to adjust the direction and angle of the first support frame 401, which can more stably support the projector placed in the box 1. When it is necessary to store the bracket body 4, the first support frame 401 can also use the universal ball to rotate at a certain angle, which is convenient for storing the bracket body 4.

[0032] Working principle: When the bracket body 4 is placed and needs to be fixed, the suction cup 6 contacts the fixing surface. Since the air extraction end of the fixing block 5 is connected to the suction cup 6, the vacuum pump 8 is activated to draw the air between the suction cup 6 and the contact surface to the top of the sliding plate 7. Because the top of the fixing block 5 is equipped with a one-way exhaust valve 9, when gas is discharged from the vacuum pump 8 to the top of the fixing block 5, due to the abnormal air pressure inside the fixing block 5, the one-way exhaust valve 9 will automatically discharge the excess air outside the fixing block 5, maintaining the air pressure balance inside the fixing block 5. As the air between the suction cup 6 and the contact surface is gradually discharged, the suction cup 6 gradually adheres to the contact surface. Since the outer wall of the vacuum pump 8 is connected to the sliding plate 7, the sliding plate 7... A slider 502 is connected to the outer wall. When the vacuum pump 8 is started, the vacuum pump 8 drives the slider 502 to slide down gradually until the suction cup 6 is in contact with the contact surface. At this time, the suction cup 6 is firmly fixed to the contact surface, avoiding the presence of too much air in the suction cup 6, increasing the degree of contact between the suction cup 6 and the contact surface, and improving the stability of the bracket body 4 when it is fixed. Then, the projector is placed between the two clamping plates 3. Then, the handle 11 outside the placement box 1 is rotated to bring the two clamping plates 3 closer together and fix the projector between the two clamping plates 3. The opposite side of the two clamping plates 3 is provided with a protective pad to avoid damage to the projector. The operation is simple and improves the convenience of using the projector.

Claims

1. A projector stand that is easy to store, comprising a placement box (1), characterized in that, The bottom surface of the placement box (1) is connected to the support body (4). A fixing block (5) is provided outside the support body (4). A suction cup (6) is provided at the bottom inside the fixing block (5). A vacuum pump (8) is inside the fixing block (5). A sliding plate (7) is connected to the outer wall of the vacuum pump (8). The sliding plate (7) divides the inside of the fixing block (5) into upper and lower parts. A sealing ring (701) is connected to the outer wall of the sliding plate (7). The sealing ring (701) abuts against the inner wall of the fixing block (5). The top surface of the suction cup (6) is connected to the air extraction hole of the vacuum pump (8). A one-way exhaust valve (9) is connected to the outer wall of the fixing block (5). One end of the one-way exhaust valve (9) extends through the outer wall of the fixing block (5) into the fixing block (5). The one-way exhaust valve (9) is located above the sliding plate (7).

2. The projector stand that is easy to store as described in claim 1, characterized in that: The placement box (1) is provided with a bidirectional lead screw (10). One end of the bidirectional lead screw (10) is connected to a rotating shaft (12). The other end of the rotating shaft (12) is connected to a rotating handle (11). The other end is rotatably connected to the placement box (1). Both ends of the bidirectional lead screw (10) are threadedly connected to threaded blocks (301). The top surface of the threaded block (301) is connected to a clamping plate (3). One end of the threaded block (301) is provided with a guide component. The clamping plate (3) is located inside the placement box (1).

3. The projector stand that is easy to store as described in claim 2, characterized in that: The fixed block (5) has a groove (501) inside, and a slider (502) is slidably connected in the groove (501). The other end of the slider (502) is connected to the outer wall of the sliding plate (7). Part of the sealing ring (701) extends into the groove (501) and abuts against the inner wall of the groove (501).

4. The projector stand that is easy to store as described in claim 3, characterized in that: The inner bottom wall of the placement box (1) is provided with a slot (2), and the bidirectional lead screw (10) is set in the slot (2).

5. A projector stand that is easy to store as described in claim 4, characterized in that: A connecting ring is connected to the outer wall of the bracket body (4), and a universal ball is rotatably connected inside the connecting ring. A first support frame (401) is connected to the outer wall of the universal ball, and the other end of the first support frame (401) is connected to the outer wall of the fixing block (5).

6. A projector stand that is easy to store as described in claim 5, characterized in that: The bottom surface of the support body (4) is connected to a bottom pad, and a second support frame (402) is threaded onto the bottom pad. The other end of the second support frame (402) is inserted into the outer wall of the first support frame (401).

7. A projector stand that is easy to store as described in claim 6, characterized in that: The guide assembly includes a sliding block (302), and the inner wall of the empty groove (2) is provided with a sliding groove (303). The sliding block (302) is slidably connected in the sliding groove (303), and the other end of the sliding block (302) is connected to the outer wall of the threaded block (301).

8. A projector stand that is easy to store as described in claim 7, characterized in that: The sealing ring (701) is made of rubber.

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