Height-adjustable auditorium chair

Abstract

The utility model relates to the technical field of auditorium chairs, in particular to a height-adjustable auditorium chair which comprises a support and a connecting block, the support is connected with the outer wall of the connecting block in a sliding mode, a lifting mechanism is arranged in the support, a seat plate is fixedly connected to the upper surface of the connecting block, two armrests are fixedly connected to the upper surface of the seat plate, and the upper surface of the seat plate is fixedly connected with a lifting mechanism. An inclination mechanism is arranged on the outer wall of the armrest on the right side, two bearing seats are fixedly connected to the upper surface of the seat plate, and the two bearing seats are rotationally connected with the outer walls of the two ends of a rotating rod through bearings. Through cooperation of a worm, a handle, worm wheels, a cylinder and screw rods, the handle drives the worm to rotate, the worm drives the two worm wheels to rotate, the worm wheels drive the cylinder to rotate, the cylinder drives the screw rods to move, the two screw rods drive a connecting block to slide, the connecting block drives a seat plate to move, the height of the seat plate is adjusted, and then height adjustment of the auditorium chair is achieved. The height can be conveniently adjusted according to the height of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of auditorium chairs, in particular to an auditorium chair with adjustable seat height. Background Art

[0002] Auditorium chairs are mostly used in auditoriums, theaters, meeting halls, lecture halls and other places. They should have a good sightline during meetings and performances, be easy to maintain and clean, and be comfortable to use so that people are not easily fatigued.

[0003] For example, an auditorium chair with patent number CN218008911U includes a baffle, a support rod, a base, a backrest, a rotating shaft, a cushion and a snap-in seat; the baffles are connected to the base through the support rods, the inside of the baffles are provided with a hollow chamber, and the end faces of the baffles are provided with a sound receiving groove; the bottom surface of the sound receiving groove is provided with a plurality of sound inlet holes; the backrest is located between the two baffles and connects the two baffles. The above-mentioned document still has shortcomings. When in use, a sound receiving groove is opened on the outside of the baffle, and the sound inlet holes are evenly distributed inside the sound receiving groove; when the rotating shaft drives the cushion to rotate, the noise generated will enter the inside of the baffle through the sound inlet holes. At this time, a sound absorbing plate is snapped in the hollow chamber inside the baffle, which will quickly absorb the noise to prevent it from affecting the people around. However, the height of the auditorium chairs in the above-mentioned documents is fixed, which is not convenient for height adjustment according to the height of the user. At the same time, the angle of the backrest of the auditorium chair in the above-mentioned document is fixed. When the user leans on it, the backrest can only be at a fixed angle. When in use, it is not convenient to adjust the inclination angle of the backrest according to actual use needs. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to adjust the height according to the height of the user, and proposes an auditorium chair with adjustable seat height.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An auditorium chair with adjustable seat height is designed, comprising a bracket and a connecting block, the bracket is slidably connected to the outer wall of the connecting block, a lifting mechanism is arranged inside the bracket, a seat plate is fixedly connected to the upper surface of the connecting block, two armrests are fixedly connected to the upper surface of the seat plate, a tilting mechanism is arranged on the outer wall of the right armrest, two bearing seats are fixedly connected to the upper surface of the seat plate, and the two bearing seats are rotatably connected to the outer walls at both ends of a rotating rod through bearings.

[0007] Preferably, the lifting mechanism includes a worm, the outer walls at both ends of the worm are rotatably connected to the bracket through bearings, a handle is fixedly connected to the end of the worm, the worm is meshingly connected to two worm wheels, the worm wheels are fixed to the outer wall of the cylinder, the outer walls of the two cylinders are rotatably connected to the bracket through bearings, the internal thread of the cylinder is connected to a screw, and the upper ends of the two screws are fixedly connected to the connecting block.

[0008] Preferably, the tilting mechanism includes a frame, the frame is fixedly connected to the outer wall of the armrest on the right side, the frame is internally slidably connected with a sliding rod and a slider, the slider is fixedly connected to the outer wall of the sliding rod, the outer wall of the sliding rod is sleeved with a spring, the two ends of the spring are respectively fixedly connected to the frame and the slider, the end of the sliding rod is clamped with a groove set in a disc, and the disc is fixedly connected to the end of the rotating rod.

[0009] Preferably, a backrest is fixedly connected to the outer wall of the rotating rod, and a headrest is fixedly connected to the surface of the backrest.

[0010] Preferably, a cushion is fixedly connected to the upper surface of the seat plate, and a base is fixedly connected to the lower side of the bracket.

[0011] The utility model provides an auditorium chair with adjustable seat height, which has the beneficial effect that the handle drives the worm to rotate, the worm drives two worm wheels to rotate, the worm wheel drives the cylinder to rotate, the cylinder drives the screw to move, the two screws drive the connecting block to slide, the connecting block drives the seat plate to move, the height of the seat plate is adjusted, and the height adjustment of the auditorium chair is realized. When in use, the height can be adjusted conveniently according to the height of the user.

[0012] Through the cooperation among the frame, sliding rod, slider, spring and disc, the sliding rod is pulled, the sliding rod drives the slider to slide, the slider compresses the spring, the end of the sliding rod is separated from the groove set in the disc, the backrest is rotated, the backrest drives the rotating rod to rotate, the rotating rod drives the disc to rotate, after the backrest is rotated to the required inclination angle, the sliding rod is released, the spring drives the slider to slide in the opposite direction under the elastic action, the slider drives the sliding rod to slide, the end of the sliding rod is inserted into the groove set in the disc to fix the position of the disc, and then the inclination angle of the backrest is fixed. When in use, the inclination angle of the backrest is convenient to adjust according to actual usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural sectional view of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the connection between the connection block, the seat plate and the backrest in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the connection between the bracket, the base and the connecting block in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the connection between the frame, the slide rod and the slide block in the utility model;

[0018] Figure 6 It is a structural schematic diagram of the connection between the bracket, the worm and the worm wheel in the utility model.

[0019] In the figure: 1, bracket, 2, connecting block, 3, lifting mechanism, 301, worm, 302, handle, 303, worm wheel, 304, cylinder, 305, screw, 3a1, block, 4, tilting mechanism, 401, frame, 402, sliding rod, 403, slider, 404, spring, 405, disc, 5, seat plate, 6, armrest, 7, bearing seat, 8, rotating rod, 9, backrest, 10, headrest, 11, cushion, 12, base. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Embodiment 1:

[0022] Refer to the attached Figure 1-6 : In this embodiment, an auditorium chair with adjustable seat height includes a bracket 1 and a connecting block 2. The bracket 1 is slidably connected to the outer wall of the connecting block 2. The connecting block 2 slides inside the bracket 1. A lifting mechanism 3 is provided inside the bracket 1. The lifting mechanism 3 adjusts the height of the auditorium chair. A seat plate 5 is fixedly connected to the upper surface of the connecting block 2. The seat plate 5 is convenient for users to sit down. Two armrests 6 are fixedly connected to the upper surface of the seat plate 5. A tilting mechanism 4 is provided on the outer wall of the right armrest 6. The cleaning mechanism 4 adjusts the tilt angle of the backrest 9.

[0023] Two bearing seats 7 are fixedly connected to the upper surface of the seat plate 5. The two bearing seats 7 are rotatably connected to the outer walls of the two ends of the rotating rod 8 through bearings. The two bearing seats 7 support the rotating rod 8. A backrest 9 is fixedly connected to the outer wall of the rotating rod 8. The rotating rod 8 rotates with the backrest 9. A headrest 10 is fixedly connected to the surface of the backrest 9. The headrest 10 increases the comfort of the head when leaning. A cushion 11 is fixedly connected to the upper surface of the seat plate 5. The cushion 11 increases the softness of the surface of the seat plate 5. The headrest 10 and the cushion 11 are both made of a mixture of cotton material and non-woven fabric. A base 12 is fixedly connected to the bottom of the bracket 1.

[0024] The lifting mechanism 3 includes a worm 301, a handle 302, a worm wheel 303, a cylinder 304 and a screw 305. The outer walls of both ends of the worm 301 are rotatably connected to the bracket 1 through bearings. The end of the worm 301 is fixedly connected with a handle 302, and the handle 302 drives the worm 301 to rotate. The worm 301 is meshed and connected with two worm wheels 303. The worm 301 drives the two worm wheels 303 to rotate. The worm wheel 303 is fixedly connected to the outer wall of the cylinder 304. The worm wheel 303 drives the cylinder 304 to rotate. The outer walls of the two cylinders 304 are rotatably connected to the bracket 1 through bearings. The internal thread of the cylinder 304 is connected with the screw 305. The cylinder 304 drives the screw 305 to move. The upper ends of the two screws 305 are fixedly connected to the connecting block 2, and the two screws 305 drive the connecting block 2 to slide.

[0025] The handle 302 drives the worm 301 to rotate, the worm 301 drives the two worm wheels 303 to rotate, the worm wheel 303 drives the cylinder 304 to rotate, the cylinder 304 drives the screw 305 to move, the two screws 305 drive the connecting block 2 to slide, the connecting block 2 drives the seat plate 5 to move, the height of the seat plate 5 is adjusted, and then the height of the auditorium chair is adjusted. When in use, it is convenient to adjust the height according to the height of the user.

[0026] The tilt mechanism 4 includes a frame 401, a slide bar 402, a slider 403, a spring 404 and a disc 405. The frame 401 is fixedly connected to the outer wall of the right handrail 6. The inside of the frame 401 is slidably connected to the slide bar 402 and the slider 403. The slide bar 402 and the slider 403 slide inside the frame 401. The slider 403 is fixedly connected to the outer wall of the slide bar 402. The outer wall of the slide bar 402 is sleeved with a spring 404. The model of the spring 404 is selected according to actual use requirements to meet the work needs.

[0027] The two ends of the spring 404 are respectively fixedly connected to the frame 401 and the slider 403. The spring 404 can drive the slider 403 to slide under the elastic action. The end of the slide rod 402 is clamped with the groove set in the disk 405. The slide rod 402 is clamped with the groove set in the disk 405 to fix the position of the disk 405. The disk 405 is fixedly connected to the end of the rotating rod 8, and the disk 405 rotates together with the rotating rod 8.

[0028] Pull the slide bar 402, the slide bar 402 drives the slider 403 to slide, the slider 403 compresses the spring 404, the end of the slide bar 402 is separated from the groove set in the disk 405, the backrest 9 is rotated, the backrest 9 drives the rotating rod 8 to rotate, the rotating rod 8 drives the disk 405 to rotate, after the backrest 9 is rotated to the required inclination angle, release the slide bar 402, the spring 404 drives the slider 403 to slide in the opposite direction under the elastic action, the slider 403 drives the slide bar 402 to slide, the end of the slide bar 402 is inserted into the groove set in the disk 405 to fix the position of the disk 405, and then the inclination angle of the backrest 9 is fixed. When in use, it is convenient to adjust the inclination angle of the backrest 9 according to actual usage requirements.

[0029] Working principle:

[0030] When users use auditorium chairs with adjustable seat height;

[0031] Auditorium chair height adjustment stage:

[0032] When the height of the auditorium chair needs to be adjusted, the handle 302 is turned, the handle 302 drives the worm 301 to rotate, the worm 301 drives the two worm wheels 303 to rotate, the worm wheels 303 drive the cylinder 304 to rotate, the cylinder 304 drives the screw 305 to move, the two screws 305 drive the connecting block 2 to slide, the connecting block 2 drives the seat plate 5 to move, and the height of the seat plate 5 is adjusted, thereby realizing the height adjustment of the auditorium chair. When in use, it is convenient to adjust the height according to the height of the user;

[0033] Stages for adjusting the backrest's inclination angle:

[0034] When the inclination angle of the backrest 9 needs to be adjusted according to actual usage requirements, the sliding rod 402 is pulled, and the sliding rod 402 drives the slider 403 to slide. The slider 403 compresses the spring 404, and the end of the sliding rod 402 is separated from the groove set in the disk 405, and the backrest 9 is rotated. The backrest 9 drives the rotating rod 8 to rotate, and the rotating rod 8 drives the disk 405 to rotate. After the backrest 9 is rotated to the required inclination angle, the sliding rod 402 is released, and the spring 404 drives the slider 403 to slide in the opposite direction under the elastic action, and the slider 403 drives the sliding rod 402 to slide, and the end of the sliding rod 402 is inserted into the groove set in the disk 405 to fix the position of the disk 405, thereby fixing the inclination angle of the backrest 9. When in use, it is convenient to adjust the inclination angle of the backrest 9 according to actual usage requirements. The user sits on the cushion 11 set on the seat plate 5 with his back against the backrest 9.

[0035] Embodiment 2:

[0036] Refer to the attached Figure 1-6: In this embodiment, an auditorium chair with adjustable seat height, the lifting mechanism 3 further includes a block 3a1, the block 3a1 is fixedly connected to the lower end of the screw 305, and the block 3a1 prevents the screw 305 from being separated from the cylinder 304;

[0037] Through the action of block 3a1, block 3a1 is fixed to the lower end of screw 305, and block 3a1 prevents screw 305 from separating from cylinder 304.

[0038] Working principle:

[0039] Block 3a1 is fixedly connected to the lower end of screw 305 , and block 3a1 prevents screw 305 from being separated from cylinder 304 .

[0040] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An auditorium chair with adjustable seat height, comprising a bracket (1) and a connecting block (2), wherein the bracket (1) is slidably connected to the outer wall of the connecting block (2), characterized in that: A lifting mechanism (3) is provided inside the bracket (1); a seat plate (5) is fixedly connected to the upper surface of the connecting block (2); two handrails (6) are fixedly connected to the upper surface of the seat plate (5); a tilting mechanism (4) is provided on the outer wall of the right handrail (6); two bearing seats (7) are fixedly connected to the upper surface of the seat plate (5); the two bearing seats (7) are rotatably connected to the outer walls of both ends of the rotating rod (8) through bearings.

2. The auditorium chair with adjustable seat height according to claim 1, characterized in that: The lifting mechanism (3) comprises a worm (301), the outer walls at both ends of the worm (301) are rotatably connected to the bracket (1) via bearings, a handle (302) is fixedly connected to the end of the worm (301), the worm (301) is meshedly connected to two worm wheels (303), the worm wheels (303) are fixedly connected to the outer wall of a cylinder (304), the outer walls of the two cylinders (304) are rotatably connected to the bracket (1) via bearings, the inner thread of the cylinder (304) is connected to a screw (305), and the upper ends of the two screws (305) are fixedly connected to the connecting block (2).

3. The auditorium chair with adjustable seat height according to claim 1, characterized in that: The tilting mechanism (4) comprises a frame (401), wherein the frame (401) is fixedly connected to the outer wall of the right handrail (6), and a sliding rod (402) and a slider (403) are slidably connected inside the frame (401), and the slider (403) is fixedly connected to the outer wall of the sliding rod (402), and a spring (404) is sleeved on the outer wall of the sliding rod (402), and the two ends of the spring (404) are respectively fixedly connected to the frame (401) and the slider (403), and the end of the sliding rod (402) is clamped with a groove arranged in a disc (405), and the disc (405) is fixedly connected to the end of the rotating rod (8).

4. The auditorium chair with adjustable seat height according to claim 1, characterized in that: A backrest (9) is fixedly connected to the outer wall of the rotating rod (8), and a headrest (10) is fixedly connected to the surface of the backrest (9).

5. The auditorium chair with adjustable seat height according to claim 1, characterized in that: A cushion (11) is fixedly connected to the upper surface of the seat plate (5), and a base (12) is fixedly connected to the lower side of the bracket (1).

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