A self-cleaning chair

Abstract

The present invention relates to a chair, and in particular to a chair that is easy to clean by itself. The present invention provides a chair that is easy to clean by itself and can efficiently clean stains on the surface of a seat cushion. A chair that is easy to clean by itself comprises a chair, a back cushion, a foot pedal, a magnetic plate, a first sliding rod, a first spring, a first slider, etc.; a back cushion is provided on the rear side of the upper part of the chair, a foot pedal is symmetrically provided on the front side of the lower part of the chair, two first sliding rods are provided on the left and right sides of the middle part of the chair, and a first slider is slidably connected between the two first sliding rods on the same side, a first spring is wound around the first sliding rod, the top end of the first spring is connected to the first slider, the bottom end of the first spring is connected to the chair, and a magnetic plate is rotatably provided on the upper part of the first slider. When the seat cushion moves backward, the cleaning brush is squeezed to slide upward, and at the same time, the seat cushion pushes the cleaning brush and the first movable plate to slide backward, so that the cleaning effect of the cleaning brush in removing stains on the surface of the seat cushion is improved by increasing the friction between the cleaning brush and the seat cushion.

Description

Technical Field

[0001] The invention relates to a school chair, in particular to a school chair which is easy to clean itself. Background Art

[0002] Chairs are necessary teaching equipment to support students' learning in class. Since chairs are public facilities in schools, the chair cushions are often used frequently and will produce subtle stains. If they are not cleaned in time, these stains will be difficult to remove over time, causing the chair cushions to become dirty and old, thus affecting the image of the school.

[0003] The traditional classroom chair generally includes a classroom chair, a seat cushion, a back cushion, a foot pedal, a magnetic plate, a first slide bar, a first spring, a first slider, a first torsion spring, a support plate and a threaded rod. The back cushion is provided on the upper rear side of the classroom chair, and the foot pedal is symmetrically provided on the lower front side of the classroom chair. Two first slide bars are provided on the left and right sides of the middle part of the classroom chair. The first slider is slidably connected between the two first slide bars on the same side. The first spring is wound around the first slide bar. The top of the first spring is connected to the first slider, and the bottom of the first spring is connected to the classroom chair. The top of the first slider is rotatably provided with a magnetic plate. Plate, the first sliding block is wound with a first torsion spring on the inner side of the upper part, the inner end of the first torsion spring is connected to the first sliding block on the same side, the outer end of the first torsion spring is connected to the magnetic plate on the same side, and a cushion is adsorbed between the tops of the two magnetic plates. Threaded rods are rotatably provided on the left and right sides of the chair, and support plates are threaded on the threaded rods. This kind of chair has a relatively single function. In addition to ensuring basic comfortable support, it generally does not have other functions. When the cushion is stained, it is difficult to clean it over time and needs to be cleaned manually one by one over and over again, and the operation is relatively cumbersome.

[0004] In view of this, in order to solve the above-mentioned problem, it is of great significance to maintain the image of the school to discover a new self-cleaning chair that can effectively clean the stains on the surface of the seat cushion. Summary of the invention

[0005] In order to overcome the shortcoming that the existing chair seat cushions are stained and difficult to clean, the technical problem is to provide a self-cleaning chair that can effectively clean the stains on the seat cushion surface.

[0006] The technical solution of the present invention is: a self-cleaning chair, comprising a chair, a seat cushion, a back cushion, a foot pedal, a magnetic plate, a first slide bar, a first spring, a first slider, a first torsion spring, a support plate, a threaded rod, a moving mechanism, a cleaning mechanism, a water spraying mechanism and a shielding mechanism, a back cushion is provided on the upper rear side of the chair, a foot pedal is symmetrically provided on the lower front side of the chair, two first slide bars are provided on the left and right sides of the middle part of the chair, a first slider is slidably connected between the two first slide bars on the same side, a first spring is wound around the first slide bar, the top end of the first spring is connected to the first slider, and the bottom end of the first spring is connected to the chair A magnetic plate is rotatably provided on the upper part of the first slider, a first torsion spring is wound on the inner side of the upper part of the first slider, the inner end of the first torsion spring is connected to the first slider on the same side, the outer end of the first torsion spring is connected to the magnetic plate on the same side, a cushion is adsorbed between the tops of the two magnetic plates, threaded rods are rotatably provided on the left and right sides of the chair, support plates are threadedly provided on the threaded rods, a moving mechanism for moving the cushion is provided in the middle part of the chair, the moving mechanism is engaged with the cushion, a cleaning mechanism for cleaning the cushion is provided on the rear side of the middle part of the chair, a water spraying mechanism for providing clean water for cleaning is provided on the back cushion, and a shielding mechanism for controlling the outflow of clean water is provided at the rear lower part of the back cushion.

[0007] Furthermore, the second slider, the second spring and the clamping block constitute a moving mechanism. The second slider is slidably provided on the left and right sides of the middle part of the chair. The inner side of the second slider is provided with a clamping block, which can clamp the seat cushion. The second spring is connected between the second slider and the chair.

[0008] Furthermore, the first movable plate, the cleaning brush, the second sliding rod, the third spring and the fourth spring constitute a cleaning mechanism. The second sliding rod is symmetrically arranged on the left and right sides of the middle rear part of the chair. The first movable plate is slidably connected between the front sides of the second sliding rod. A cleaning brush is slidably arranged on the first movable plate. The third springs are wound around the left and right sides of the cleaning brush. The top end of the third spring is connected to the cleaning brush, and the bottom end of the third spring is connected to the first movable plate. The fourth spring is wound around the inner side of the second sliding rod, and both ends of the fourth spring are respectively connected to the first movable plate and the second sliding rod.

[0009] Furthermore, a water tank, a water pipe, a second movable plate, a spraying part, a fifth spring, a tooth plate, a sixth spring and a third sliding rod constitute a water spraying mechanism. A water tank is provided in the middle of the rear part of the back pad, water pipes are evenly spaced on the front side of the water tank, a second movable plate is connected between the water pipes, the bottoms of the water pipes are slidably connected to the spraying part, fifth springs are wound around the lower parts of the water pipes, the top ends of the fifth springs are connected to the second movable plate, the bottom ends of the fifth springs are connected to the spraying part, third sliding rods are provided on the left and right sides of the lower part of the back pad, tooth plates that contact and cooperate with the second movable plate are slidably provided on the third sliding rods, sixth springs are wound around the third sliding rods, the inner ends of the sixth springs are connected to the tooth plates, and the outer ends of the sixth springs are connected to the back pad.

[0010] Furthermore, the shielding mechanism is constituted by a rotating shaft, a shielding part, a second torsion spring, a wedge plate, a slide plate, a fourth slide bar, a seventh spring and a pull rope. A rotating shaft is rotatably provided at the rear lower part of the back pad, a shielding part is provided at the middle part of the rotating shaft, a second torsion spring is wound around the left and right sides of the rotating shaft, two ends of the second torsion spring are respectively connected to the rotating shaft and the shielding part, a wedge plate is symmetrically provided at the bottom of the shielding part, a slide plate contacting and cooperating with the first movable plate is slidably provided at the lower part of the wedge plate, a fourth slide bar is provided at the rear side of the wedge plate, the slide bar is slidably connected to the fourth slide bar, a seventh spring is wound around the upper part of the fourth slide bar, two ends of the seventh spring are respectively connected to the wedge plate and the slide plate, the lower part of the wedge plate is contacting and cooperating with the first movable plate, and a pull rope is connected between the left and right sides of the top of the wedge plate and the second movable plate.

[0011] Furthermore, it also includes a tilting mechanism that allows the seat cushion to tilt downward to pour water. The tilting mechanism is composed of a fixed rod, a fifth sliding rod and an eighth spring. A fixed rod is provided on the rear side of the lower part of the chair. Fifth sliding rods are slidably provided on both sides of the upper part of the fixed rod. The fifth sliding rod is wound with an eighth spring, and both ends of the eighth spring are respectively connected to the fixed rod and the fifth sliding rod.

[0012] Furthermore, it also includes a clamping mechanism for clamping the tilted seat cushion. The clamping mechanism is composed of a clamping plate, a sixth sliding rod and a ninth spring. Sixth sliding rods are symmetrically slidably provided on the left and right sides of the upper part of the chair. A clamping plate is connected between the inner ends of two adjacent sixth sliding rods. A ninth spring is wound around the sixth sliding rod, the inner ends of the ninth springs are connected to the clamping plates, and the outer ends of the ninth springs are connected to the chair.

[0013] Furthermore, water spray holes are evenly spaced at the bottom of the back pad, the upper diameter of the spray part is larger than the lower diameter, the lower part of the spray part can pass through the water spray holes, and the upper part of the spray part cannot pass through the water spray holes.

[0014] The present invention has the following advantages: 1. Students can sit on the cushion of the chair, with their backs against the back cushion and their feet on the foot pedal, and the first spring has a buffering effect, which ensures basic comfort when sitting;

[0015] 2. The seat cushion moves downward and disengages from the block and contacts the support plate. The support plate supports the seat cushion, which not only strengthens the supporting effect but also prevents the seat cushion from moving downward excessively.

[0016] 3. When the seat cushion moves backward, the cleaning brush is squeezed to slide upward, and at the same time, the seat cushion pushes the cleaning brush and the first movable plate to slide backward, thereby improving the cleaning effect of the cleaning brush in removing stains on the surface of the seat cushion by increasing the friction between the cleaning brush and the seat cushion;

[0017] 4. The clean water in the water tank can be sprayed more evenly on the seat cushion when it flows out through the water pipe and the spray part in turn. The clean water can wash away the stains on the surface of the seat cushion, further improving the cleaning effect;

[0018] 5. The student presses down on the seat cushion so that it contacts the top of the fifth slide bar. Under the action of the fifth slide bar, the seat cushion swings downward and the water stains slide down, accelerating the drying of the seat cushion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure from a third viewing angle of the present invention.

[0022] Figure 4 It is a partial three-dimensional structural schematic diagram of the present invention.

[0023] Figure 5 It is a schematic diagram of a first partial three-dimensional structure of the moving mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of a second partial three-dimensional structure of the moving mechanism of the present invention.

[0025] Figure 7 It is a schematic diagram of a third partial three-dimensional structure of the moving mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the first partial three-dimensional structure of the cleaning mechanism of the present invention.

[0027] Fig. 9 It is a schematic diagram of the second partial three-dimensional structure of the cleaning mechanism of the present invention.

[0028] Fig.10 It is a schematic diagram of the first partial three-dimensional structure of the water spray mechanism of the present invention.

[0029] Fig.11 It is a schematic diagram of the second partial three-dimensional structure of the water spray mechanism of the present invention.

[0030] Fig.12 It is a schematic diagram of the third partial three-dimensional structure of the water spray mechanism of the present invention.

[0031] Fig.13 It is a schematic diagram of a first partial three-dimensional structure of the shielding mechanism of the present invention.

[0032] Fig.14 It is a schematic diagram of a second partial three-dimensional structure of the shielding mechanism of the present invention.

[0033] Fig.15 It is a schematic diagram of the three-dimensional structure of the tilting mechanism of the present invention.

[0034] Fig.16It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0035] Parts names and serial numbers in the figure: 1_classroom chair, 2_seat cushion, 3_back cushion, 31_foot pedal, 32_magnetic plate, 33_first slide bar, 34_first spring, 35_first slider, 36_first torsion spring, 11_support plate, 12_threaded rod, 4_moving mechanism, 41_second slider, 42_second spring, 43_block, 5_cleaning mechanism, 51_first movable plate, 52_cleaning brush, 53_second slide bar, 54_third spring, 55_fourth spring, 6_water spraying mechanism, 61_water tank, 62_water pipe, 63_second movable plate, 64_spraying part, 65_fifth spring, 66_tooth plate, 67_sixth spring, 68_third slide bar, 7_shielding mechanism, 71_rotating shaft, 72_shielding part, 73_second torsion spring, 74_wedge plate, 75_slide plate, 76_fourth slide bar, 77_seventh spring, 78_pull rope, 8_tilting mechanism, 81_fixing rod, 82_fifth slide bar, 83_eighth spring, 9_clamping mechanism, 91_clamping plate, 92_sixth slide bar, 93_ninth spring. DETAILED DESCRIPTION

[0036] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

[0037] Example 1

[0038] A self-cleaning chair, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, it includes a classroom chair 1, a seat cushion 2, a back cushion 3, a foot pedal 31, a magnetic plate 32, a first slide bar 33, a first spring 34, a first slider 35, a first torsion spring 36, a support plate 11, a threaded rod 12, a moving mechanism 4, a cleaning mechanism 5, a water spraying mechanism 6 and a shielding mechanism 7. The back cushion 3 is provided on the upper rear side of the classroom chair 1, and the foot pedal 31 is symmetrically provided on the lower front side of the classroom chair 1. Two first slide bars 33 are welded on the left and right sides of the middle part of the classroom chair 1, and the first slider 35 is slidably connected between the two first slide bars 33 on the same side. The first spring 34 is wound around the first slide bar 33, the top end of the first spring 34 is connected to the first slider 35, and the bottom end of the first spring 34 is connected to the classroom chair 1. The upper part of the first slider 35 is rotatably provided with a magnetic plate 32, and the inner side of the upper part of the first slider 35 is A first torsion spring 36 is wound around it, and the inner ends of the first torsion springs 36 are connected to the first slider 35 on the same side, and the outer ends of the first torsion springs 36 are connected to the magnetic plates 32 on the same side. A seat cushion 2 is adsorbed between the tops of the two magnetic plates 32, and the seat cushion 2 is located in the middle position of the classroom chair 1. The magnetic plates 32 and the seat cushion 2 are both magnetic. A moving mechanism 4 is provided in the middle of the classroom chair 1, and the moving mechanism 4 is engaged with the seat cushion 2. The moving mechanism 4 is used to move the seat cushion 2. A cleaning mechanism 5 is provided on the rear side of the middle of the classroom chair 1, and the cleaning mechanism 5 is used to clean the seat cushion 2. A water spraying mechanism 6 is provided on the back cushion 3, and the water spraying mechanism 6 provides clean water for cleaning. A shielding mechanism 7 is provided on the rear lower part of the back cushion 3, and the shielding mechanism 7 controls the outflow of clean water. Threaded rods 12 are rotatably provided on the left and right sides of the classroom chair 1, and support plates 11 are threadedly provided on the threaded rods 12, and the seat cushion 2 moves down and contacts with the support plates 11.

[0039] like Figure 5 , Figure 6 and Figure 7 As shown, the moving mechanism 4 includes a second slider 41, a second spring 42 and a clamping block 43. The second sliders 41 are slidably provided on the left and right sides of the middle part of the classroom chair 1. The inner sides of the second sliders 41 are provided with clamping blocks 43. The clamping blocks 43 are engaged with the seat cushion 2. A second spring 42 is connected between the second slider 41 and the classroom chair 1.

[0040] Such as 8 and Fig. 9 As shown, the cleaning mechanism 5 includes a first movable plate 51, a cleaning brush 52, a second slide bar 53, a third spring 54 and a fourth spring 55. The second slide bar 53 is symmetrically welded on the left and right sides of the middle rear side of the classroom chair 1, and the first movable plate 51 is slidably connected between the front sides of the second slide bar 53. A cleaning brush 52 is slidably provided on the first movable plate 51. The cleaning brush 52 is used to brush away stains on the surface of the seat cushion 2. The seat cushion 2 moves backward and contacts the cleaning brush 52. The third springs 54 are wound around the left and right sides of the cleaning brush 52. The top end of the third spring 54 is connected to the cleaning brush 52, and the bottom end of the third spring 54 is connected to the first movable plate 51. The fourth spring 55 is wound around the inner side of the second slide bar 53, and the two ends of the fourth spring 55 are respectively connected to the first movable plate 51 and the second slide bar 53.

[0041] like Fig.10 , Fig.11 and Fig.12 As shown, the water spray mechanism 6 includes a water tank 61, a water pipe 62, a second movable plate 63, a spraying part 64, a fifth spring 65, a tooth plate 66, a sixth spring 67 and a third slide bar 68. Water spray holes are evenly spaced at the bottom of the back pad 3. A water tank 61 is installed in the middle of the rear of the back pad 3 by bolts. The water tank 61 is used to store clean water. Water pipes 62 are evenly spaced at the front side of the water tank 61. The elastic coefficient of the water pipes 62 is relatively large. The second movable plate 63 is connected between the water pipes 62. The bottom of the water pipes 62 are all slidably connected to the spraying part 64. The upper diameter of the spraying part 64 is larger than the lower diameter. The lower part of the spraying part 64 can pass through the water spray hole, and the upper part of the spraying part 64 cannot pass through the water spray hole. Hole, a fifth spring 65 is wound around the lower part of the water pipe 62, the top of the fifth spring 65 is connected to the second movable plate 63, the bottom of the fifth spring 65 is connected to the spraying part 64, and a third slide bar 68 is welded on the left and right sides of the lower part of the back pad 3, and a tooth plate 66 is slidably provided on the third slide bar 68, and the tooth plate 66 is in contact with the second movable plate 63. A sixth spring 67 is wound around the third slide bar 68, the inner end of the sixth spring 67 is connected to the tooth plate 66, and the outer end of the sixth spring 67 is connected to the back pad 3. The water pipe 62, the second movable plate 63, the spraying part 64, the fifth spring 65, the tooth plate 66, the sixth spring 67 and the third slide bar 68 are all embedded in the back pad 3.

[0042] like Fig.13 and Fig.14 As shown, the shielding mechanism 7 includes a rotating shaft 71, a shielding portion 72, a second torsion spring 73, a wedge plate 74, a slide plate 75, a fourth slide bar 76, a seventh spring 77 and a pull rope 78. The rear lower part of the back pad 3 is rotatably provided with a rotating shaft 71, and the shielding portion 72 is provided in the middle of the rotating shaft 71. The left and right sides of the rotating shaft 71 are wound with second torsion springs 73, and the two ends of the second torsion spring 73 are respectively connected to the rotating shaft 71 and the shielding portion 72. The bottom of the shielding portion 72 is symmetrically fixed with a wedge plate 74, and the lower part of the wedge plate 74 is slidably provided with a slide plate 75. The bottom of the slide plate 75 is in contact with the first movable plate 51. The rear side of the wedge plate 74 is provided with a fourth slide bar 76. The slide plate 75 is slidably connected to the fourth slide bar 76. The upper part of the fourth slide bar 76 is wound with a seventh spring 77. The two ends of the seventh spring 77 are respectively connected to the wedge plate 74 and the slide plate 75. The left and right sides of the top of the wedge plate 74 are connected to the second movable plate 63 with a pull rope 78.

[0043] Schools can be equipped with such self-cleaning chairs 1 to reduce the trouble of cleaning the chairs 1. Usually, the seat cushion 2 is adsorbed on the magnetic plate 32, and a sufficient amount of clean water is stored in the water tank 61. Students can sit on the seat cushion 2, with their backs against the back cushion 3 and their feet on the foot pedal 31. The student's gravity causes the seat cushion 2 to drive the magnetic plate 32 to slide downward, and the first spring 34 is compressed to achieve a cushioned seating effect. The seat cushion 2 moves downward and disengages from the block 43 and contacts the support plate 11. The support plate 11 supports the seat cushion 2, which on the one hand strengthens the supporting effect, and on the other hand prevents the seat cushion 2 from moving downward excessively. When the seat cushion 2 needs to be cleaned, the student leaves the seat cushion 2, and the first spring 34 resets to drive the magnetic plate 32 to slide upward, and the seat cushion 2 moves upward and resets accordingly. The seat cushion 2 is separated from the support plate 11 and contacts the block 4 3 is engaged, and then the student pushes the seat cushion 2 to move backward. The seat cushion 2 drives the second slider 41 to slide backward through the block 43, and the second spring 42 is compressed. During the backward movement of the seat cushion 2, the cleaning brush 52 is squeezed to slide upward, and the third spring 54 is stretched. At the same time, the seat cushion 2 pushes the cleaning brush 52 and the first movable plate 51 to slide backward, and the fourth spring 55 is compressed. In this way, the friction between the cleaning brush 52 and the seat cushion 2 is increased, and the cleaning effect of the cleaning brush 52 in removing stains on the surface of the seat cushion 2 is improved. The first movable plate 51 moves backward and drives the wedge plate 74 to flip backward, and the shielding portion 72, the slide plate 75, the fourth slide bar 76 and the seventh spring 77 flip accordingly. The second torsion spring 73 is twisted and deformed, so that the seventh spring 77 in the compressed state slowly returns to its original position. The sliding plate 75 can make up for the problem of insufficient length of the wedge plate 74 to prevent the shielding portion 72 from being fully opened, and the wedge plate 74 can drive the second movable plate 63 to move downward by pulling the pull rope 78, and the second movable plate 63 drives the spraying portion 64 and the fifth spring 65 to move downward, and the lower part of the spraying portion 64 passes through the water spraying hole, and the upper part of the second movable plate 63 is blocked by the back pad 3 and cannot pass through the water spraying hole. In this way, the spraying portion 64 stops moving downward, and the second movable plate 63 continues to move downward so that the fifth spring 65 The spring 65 is compressed, and under the cooperation of the tooth plate 66 and the second movable plate 63, the tooth plate 66 intermittently slides inward and outward along the third slide bar 68, and the sixth spring 67 is adaptively compressed and reset. Under the action of the tooth plate 66, the second movable plate 63 vibrates slightly during the downward movement, so that the clean water in the water tank 61 can be sprayed more evenly on the seat cushion 2 when it flows out through the water pipe 62 and the spraying part 64 in turn. The clean water can flush the stains brushed off the surface of the seat cushion 2 to improve the cleaning effect. After cleaning, the student releases the seat cushion 2, and the second spring 42 resets to drive the second slider 41 to slide forward. The second slider 41 drives the seat cushion 2 to move forward through the block 43. After the seat cushion 2 is separated from the cleaning brush 52, the third spring 54 resets to drive the cleaning brush 52 to slide downward.The fourth spring 55 is reset to make the cleaning brush 52 and the first movable plate 51 move forward, the second torsion spring 73 is reset to drive the shielding part 72 to flip forward, and the shielding part 72 drives the slide plate 75 to flip forward through the wedge plate 74. Under the action of the first movable plate 51, the slide plate 75 slides upward, the seventh spring 77 is compressed, and the wedge plate 74 releases the pull rope 78. Under the elastic force of the water pipe 62, the water pipe 62 pulls the second movable plate 63 upward, and the spraying part 64 and the fifth spring 65 move upward accordingly. The spraying part 64 is retracted into the back pad 3 as a whole, and the fifth spring 65 is reset.

[0044] Example 2

[0045] On the basis of Example 1, Figure 1 and Fig.15 As shown, it also includes a tilting mechanism 8, which tilts the seat cushion 2 downward to pour water. The tilting mechanism 8 includes a fixed rod 81, a fifth slide rod 82 and an eighth spring 83. The fixed rod 81 is fixedly connected to the rear side of the lower part of the classroom chair 1, and the fifth slide rod 82 is slidably provided on both sides of the upper part of the fixed rod 81. The seat cushion 2 moves downward and contacts with the fifth slide rod 82. The fifth slide rod 82 is wound with an eighth spring 83, and the two ends of the eighth spring 83 are respectively connected to the fixed rod 81 and the fifth slide rod 82.

[0046] like Figure 1 and Fig.16 As shown, it also includes a clamping mechanism 9, which clamps the tilted seat cushion 2. The clamping mechanism 9 includes a clamping plate 91, a sixth slide bar 92 and a ninth spring 93. The sixth slide bars 92 are symmetrically slidably provided on the left and right sides of the upper part of the classroom chair 1, and the inner ends of two adjacent sixth slide bars 92 are connected with a clamping plate 91. The seat cushion 2 swings downward and contacts with the clamping plate 91. The sixth slide bars 92 are wound with ninth springs 93. The inner ends of the ninth springs 93 are connected to the clamping plates 91, and the outer ends of the ninth springs 93 are connected to the classroom chair 1.

[0047] After the stains brushed off on the surface of the cushion 2 are rinsed with clean water, in order to speed up the treatment of the residual water stains on the surface of the cushion 2, the student manually rotates the threaded rod 12 so that the support plate 11 moves outward and no longer blocks the cushion 2, and then presses the cushion 2 downward, and the cushion 2 drives the magnetic plate 32, the first slider 35 and the first torsion spring 36 to move downward as a whole, and the first spring 34 is compressed, so that the cushion 2 contacts the top of the fifth slide bar 82, and the fifth slide bar 82 slides downward, and the eighth spring 83 is compressed. Under the action of the fifth slide bar 82, the cushion 2 swings downward, and the magnetic plate 32 swings accordingly. The first torsion spring 36 twists and deforms, and the water stains slide downward, accelerating the drying of the cushion 2. When the seat cushion 2 swings and contacts the clamping plate 91, the clamping plate 91 is squeezed to move outward, thereby driving the sixth slide bar 92 to slide outward, and the ninth spring 93 is compressed. When the seat cushion 2 swings to the rear of the clamping plate 91, the ninth spring 93 resets and drives the clamping plate 91 to move inward. The clamping plate 91 blocks the seat cushion 2 to prevent the first torsion spring 36 from driving the seat cushion 2 to reset. When all the water stains on the seat cushion 2 are drained, the student squeezes the clamping plate 91 outward again so that the clamping plate 91 no longer blocks the seat cushion 2. Under the reset action of the first torsion spring 36, the magnetic plate 32 drives the seat cushion 2 to swing upward and reset. When the seat cushion 2 needs to be removed, the seat cushion 2 can be removed from the magnetic plate 32.

[0048] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A self-cleaning chair, comprising a chair (1), a seat cushion (2), a back cushion (3), a footrest (31), a magnetic plate (32), a first slide bar (33), a first spring (34), a first slider (35), a first torsion spring (36), a support plate (11) and a threaded rod (12), wherein the back cushion (3) is provided on the upper rear side of the chair (1), the footrest (31) is symmetrically provided on the lower front side of the chair (1), two first slide bars (33) are provided on the left and right sides of the middle part of the chair (1), the first slider (35) is slidably connected between the two first slide bars (33) on the same side, and the first spring (34) is wound around the first slide bars (33). 4), the top of the first spring (34) is connected to the first slider (35), the bottom of the first spring (34) is connected to the chair (1), the upper part of the first slider (35) is rotatably provided with a magnetic plate (32), the inner side of the upper part of the first slider (35) is wound with a first torsion spring (36), the inner end of the first torsion spring (36) is connected to the first slider (35) on the same side, the outer end of the first torsion spring (36) is connected to the magnetic plate (32) on the same side, a cushion (2) is adsorbed between the tops of the two magnetic plates (32), the left and right sides of the chair (1) are rotatably provided with a threaded rod (12), and the threaded rod (12) is threadedly provided with a support plate (11), characterized in that: The teaching chair (1) further comprises a moving mechanism (4), a cleaning mechanism (5), a water spraying mechanism (6) and a shielding mechanism (7); a moving mechanism (4) for moving the seat cushion (2) is provided in the middle of the teaching chair (1); the moving mechanism (4) is engaged with the seat cushion (2); a cleaning mechanism (5) for cleaning the seat cushion (2) is provided at the rear side of the middle of the teaching chair (1); a water spraying mechanism (6) for providing clean water for cleaning is provided on the back cushion (3); and a shielding mechanism (7) for controlling the outflow of clean water is provided at the rear lower part of the back cushion (3); The second slider (41), the second spring (42) and the clamping block (43) constitute a moving mechanism (4); the second slider (41) is slidably provided on both left and right sides of the middle of the chair (1); a clamping block (43) is provided on the inner side of the second slider (41); the clamping block (43) can clamp the seat cushion (2); and a second spring (42) is connected between the second slider (41) and the chair (1); A first movable plate (51), a cleaning brush (52), a second slide bar (53), a third spring (54) and a fourth spring (55) constitute a cleaning mechanism (5); a second slide bar (53) is symmetrically arranged on the left and right sides of the middle rear side of the chair (1); a first movable plate (51) is slidably connected between the front sides of the second slide bar (53); a cleaning brush (52) is slidably arranged on the first movable plate (51); third springs (54) are wound around the left and right sides of the cleaning brush (52); the top ends of the third springs (54) are connected to the cleaning brush (52); the bottom ends of the third springs (54) are connected to the first movable plate (51); a fourth spring (55) is wound around the inner sides of the second slide bar (53); and the two ends of the fourth spring (55) are respectively connected to the first movable plate (51) and the second slide bar (53); A water tank (61), a water pipe (62), a second movable plate (63), a spraying portion (64), a fifth spring (65), a tooth plate (66), a sixth spring (67) and a third slide bar (68) constitute a water spraying mechanism (6). A water tank (61) is provided in the middle of the rear portion of the back cushion (3). Water pipes (62) are evenly spaced apart on the front side of the water tank (61). The second movable plate (63) is connected between the water pipes (62). The bottom of the water pipes (62) is slidably connected to the spraying portion (64). The lower portion of the water pipes (62) is wound with the fifth spring. (65), the top end of the fifth spring (65) is connected to the second movable plate (63), the bottom end of the fifth spring (65) is connected to the spraying part (64), the left and right sides of the lower part of the back pad (3) are provided with third sliding rods (68), the third sliding rods (68) are slidably provided with tooth plates (66) that contact and cooperate with the second movable plate (63), the third sliding rods (68) are wound with sixth springs (67), the inner ends of the sixth springs (67) are connected to the tooth plates (66), and the outer ends of the sixth springs (67) are connected to the back pad (3); The shielding mechanism (7) is composed of a rotating shaft (71), a shielding portion (72), a second torsion spring (73), a wedge-shaped plate (74), a slide plate (75), a fourth slide bar (76), a seventh spring (77) and a pull rope (78). A rotating shaft (71) is rotatably provided at the rear lower part of the back pad (3). The shielding portion (72) is provided at the middle of the rotating shaft (71). The second torsion spring (73) is wound around both left and right sides of the rotating shaft (71). Both ends of the second torsion spring (73) are respectively connected to the rotating shaft (71) and the shielding portion (72). A wedge-shaped plate (74) is symmetrically provided at the bottom of the shielding portion (72). The wedge-shaped plate (74) is symmetrically provided at the left and right sides of the shielding portion (72). The lower part of the wedge plate (74) is provided with a sliding plate (75) which contacts and cooperates with the first movable plate (51). The rear side of the wedge plate (74) is provided with a fourth sliding rod (76). The sliding plate (75) is slidably connected to the fourth sliding rod (76). The upper part of the fourth sliding rod (76) is wound with a seventh spring (77). The two ends of the seventh spring (77) are respectively connected to the wedge plate (74) and the sliding plate (75). The lower part of the wedge plate (74) contacts and cooperates with the first movable plate (51). The left and right sides of the top of the wedge plate (74) are connected to the second movable plate (63) with a pull rope (78).

2. A self-cleaning chair according to claim 1, characterized in that: The invention also comprises a tilting mechanism (8) for tilting the seat cushion (2) downward to pour water, wherein the tilting mechanism (8) is composed of a fixed rod (81), a fifth slide rod (82) and an eighth spring (83), wherein a fixed rod (81) is provided at the rear side of the lower part of the classroom chair (1), and fifth slide rods (82) are slidably provided at the left and right sides of the upper part of the fixed rod (81), and an eighth spring (83) is wound around the fifth slide rod (82), and the two ends of the eighth spring (83) are respectively connected to the fixed rod (81) and the fifth slide rod (82).

3. A self-cleaning chair according to claim 2, characterized in that: The invention also includes a clamping mechanism (9) for clamping the seat cushion (2) after tilting. The clamping mechanism (9) is composed of a clamping plate (91), a sixth slide bar (92) and a ninth spring (93). Sixth slide bars (92) are symmetrically slidably arranged on both sides of the upper part of the classroom chair (1). A clamping plate (91) is connected between the inner ends of two adjacent sixth slide bars (92). A ninth spring (93) is wound around the sixth slide bar (92). The inner ends of the ninth springs (93) are connected to the clamping plate (91), and the outer ends of the ninth springs (93) are connected to the classroom chair (1).

4. The self-cleaning chair according to claim 3, characterized in that: The bottom of the back pad (3) is provided with water spray holes evenly spaced apart, the upper portion of the spray part (64) has a larger diameter than the lower portion, the lower portion of the spray part (64) can pass through the water spray holes, but the upper portion of the spray part (64) cannot pass through the water spray holes.

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