Plastic chair

By designing environmental adaptation mechanisms and reinforcement mechanisms in plastic chairs, the problems of low strength, monotony of functions and low comfort in existing plastic chairs are solved, and higher strength and comfort are achieved, and functions are adjusted according to seasonal changes.

CN119405153APending Publication Date: 2025-02-11FOSHAN YEHUANG FURNITURE CO LTD
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Patent Information

Application Number
CN202411557372.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-02-11

AI Technical Summary

Technical Problem

The existing plastic chairs have low strength, monotonous functions and low comfort, which cannot meet the diverse needs of users.

Method used

A plastic chair is designed to increase the strength and comfort of the chair by fixing the seat plate on the inside of the chair body and installing an environmental adaptation mechanism and reinforcement mechanism on the seat plate. The environmental adaptation mechanism includes a hot water box, a cold water box and a herbal storage box, which can adjust functions according to seasonal changes; the reinforcement mechanism includes a metal chair foot reinforcement rod, a metal backrest reinforcement plate and an anti-loose thread fixing mechanism to enhance the overall strength of the chair.

Benefits of technology

The overall strength of the chair is improved through the reinforcement mechanism, preventing bending and extending its service life; the comfort of the chair is improved through the environmental adaptation mechanism, and the functions can be adjusted according to seasonal changes to meet the needs of different seasons.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of chairs, in particular to a plastic chair which comprises a plastic chair body, a seat plate is fixedly arranged on the inner side of the plastic chair body, a plurality of rows of through holes B are formed in the upper end face of the seat plate, and an environment adaptation mechanism is installed in the seat plate. The environment adaptation mechanism comprises a mounting groove, a hot water box, a cold water box, a herbal medicine storage box and a spring fixing mechanism, the mounting groove is located in the seat plate, and the hot water box is fixed in the mounting groove through the elastic fixing mechanism; the problems that a plastic chair is low in overall strength and low in comfort degree are solved. The metal chair leg reinforcing rods can be fixed in the chair legs through the reinforcing mechanisms, the metal backrest reinforcing plate can be fixed in the backrest through the reinforcing mechanisms, the overall temperature of the chair can be increased when winter comes, and the overall temperature of the chair can be reduced when summer comes, so that the strength and comfort of the plastic chair body are improved.
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Description

Technical Field

[0001] The invention relates to the technical field of chairs, in particular to a plastic chair. Background Art

[0002] Plastic chairs are seats made of plastic material and are widely used in homes, offices, restaurants and other places;

[0003] The existing plastic chairs have the following characteristics: light material: plastic chairs are lighter than traditional wooden chairs and are easy to move and carry; rich colors: plastic chairs can be made in a variety of colors to meet the decoration needs of different places and styles; diverse shapes: the easy shaping properties of plastic enable plastic chairs to have a variety of shapes and designs; and waterproof and anti-corrosion: plastic chairs have waterproof and anti-corrosion properties, suitable for use in humid or water-rich environments, etc.

[0004] However, since the plastic chair is made of plastic as a whole, its own strength is low, and its function is relatively monotonous and its comfort is low; therefore, it does not meet the existing needs. In this regard, we propose a plastic chair. Summary of the invention

[0005] The object of the present invention is to provide a plastic chair to solve the problems raised in the above background technology that the plastic chair is made entirely of plastic and therefore has low strength, monotonous functions, and low comfort.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a plastic chair, comprising a plastic chair body, a seat plate fixedly provided on the inner side of the plastic chair body, a plurality of rows of through holes B provided on the upper end surface of the seat plate, an environment adaptation mechanism installed inside the seat plate, the environment adaptation mechanism comprising a mounting groove, a hot water box, a cold water box, a herb storage box and a spring fixing mechanism, the mounting groove is located inside the seat plate, the hot water box is fixed inside the mounting groove by an elastic fixing mechanism, and the outer surface shapes of the hot water box, the cold water box and the herb storage box all match the inner wall shape of the mounting groove;

[0007] A reinforcement mechanism is provided below the plastic chair body, and the reinforcement mechanism includes four chair legs, four chair leg reinforcement grooves, four metal chair leg reinforcement rods, a backrest, a backrest reinforcement groove, a metal backrest reinforcement plate, a T-shaped connecting plate, and an anti-loosening threaded fixing mechanism, the four chair legs are respectively located above the four metal chair leg reinforcement rods, the upper end surfaces of the chair legs are fixed to the plastic chair body, and the four chair leg reinforcement grooves are respectively located on the lower end surfaces of the four chair legs;

[0008] The backrest is located above the metal backrest reinforcement plate, the surface of the backrest facing the plastic chair body is fixed to the plastic chair body and the backrest reinforcement groove is located at the lower end surface of the backrest, the T-shaped connecting plate is fixed to the four metal chair leg reinforcement rods and one metal backrest reinforcement plate at the same time, and the T-shaped connecting plate can be fixed to the lower end surface of the seat plate by an anti-loosening threaded fixing mechanism.

[0009] Preferably, the environmental adaptation mechanism further comprises a drawer plate, which is slidably mounted on the upper end surface of the herbal medicine storage box, and the upper end surface of the drawer plate is provided with a plurality of rows of through holes A.

[0010] Preferably, one side of the pumping plate is provided with a water source cooling pipe kit fixedly installed inside the cold water box, and one side of the water source cooling pipe kit is provided with a water source heating pipe kit fixedly installed inside the hot water box.

[0011] Preferably, a power connection line is connected to one side of the water source heating tube kit and the rear end surface of the fixed rotating shaft, and an electric control switch is provided on one side of the two power connection lines. The two electric control switches are respectively fixed to the outer surfaces of the hot water box and the cold water box, and the two electric control switches are respectively electrically connected to the water source heating tube kit and the water source cooling tube kit.

[0012] Preferably, a rotating fixed head is provided in the middle position behind the hot water box, the cold water box and the herb storage box, and a fixed rotating shaft is fixed in the middle position of the front end surface of the rotating fixed head. The three fixed rotating shafts are respectively located inside the hot water box, the cold water box and the herb storage box, and the three fixed rotating shafts are connected to the hot water box, the cold water box and the herb storage box through roller bearings.

[0013] An elliptical fixing plate is fixedly sleeved on one side of the outer surface of the fixed rotating shaft, and a circular fixing groove located on the inner wall of the mounting groove is provided on the outer side of the elliptical fixing plate sleeved on the outer surface of the fixed rotating shaft inside the hot water cartridge, wherein the top end and the bottom end of the elliptical fixing plate are both located inside the circular fixing groove, and the elliptical fixing plate is elliptical as a whole.

[0014] Preferably, the front end surface of the hot water cartridge is connected with a push plate, both ends of the push plate are slidably connected with the inner wall of the mounting groove, and both sides of the front end surface of the push plate are connected with a fixing spring.

[0015] Preferably, the anti-loosening threaded fixing mechanism includes an internal thread groove, a connecting plate mounting groove located on the lower end surface of the seat plate is provided above the internal thread groove, an internal thread connecting port is provided on one side of the inner wall of the upper end of the connecting plate mounting groove, and the position of the internal thread connecting port corresponds to the position of the internal thread groove.

[0016] Preferably, a circular plate located inside the T-shaped connecting plate is provided below the internal thread groove, and a manual rotating handle is fixedly provided at the middle position of the lower end surface of the circular plate;

[0017] The outer side of the lower end surface of the circular plate is connected to a roller bearing ring through a roller bearing, and a metal tube A is fixedly provided on both sides of the lower end surface of the roller bearing ring, and a metal tube B is provided inside the metal tube A to fit the inner wall thereof, and the lower end surface of the metal tube B is fixed to the inside of the T-shaped connecting plate, and a spring is provided inside the metal tube B and the metal tube A, and the upper and lower ends of the spring are respectively connected to the inside of the roller bearing ring and the T-shaped connecting plate;

[0018] A circle of locking heads is fixedly provided on the outer side of the upper end surface of the circular plate, and a locking groove located inside the T-shaped connecting plate is provided on the outer side of the locking head, and the locking head is stuck in the locking groove.

[0019] Preferably, a square rotating shaft is fixedly provided in the middle position of the upper end surface of the circular plate, a transmission circular plate connected to the T-shaped connecting plate through a roller bearing is provided on the outer side of the square rotating shaft, a square slot is provided in the middle position of the upper end surface of the transmission circular plate, the square rotating shaft vertically penetrates the square slot, the inner wall cross-section of the square rotating shaft is square, the outer surface of the square rotating shaft is in contact with the inner wall of the square slot, and the square rotating shaft and the square slot are slidingly connected.

[0020] Preferably, a threaded fixing head located inside the internal thread groove is provided above the transmission circular plate, and a limit anti-slip ring is movably provided on both sides of the threaded fixing head. The axis of the limit anti-slip ring is connected to a transmission rod slidably connected to the threaded fixing head, and the lower end faces of the two transmission rods are respectively fixed on both sides of the upper end face of the transmission circular plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can fix the metal chair leg reinforcement rod to the inside of the chair leg, fix the metal backrest reinforcement plate to the inside of the backrest and fix the T-shaped connecting plate to the inside of the connecting plate installation groove located on the lower end surface of the seat plate through the reinforcement mechanism, so as to increase the overall strength of the plastic chair body and prevent it from bending due to external forces. The above technical solution enhances the overall strength of the plastic chair body and increases its service life;

[0023] 2. The present invention can install the hot water box inside the installation groove when winter comes, and can install the cold water box inside the installation groove when summer comes. The water source heating pipe kit and the water source cooling pipe kit installed inside the hot water box and the cold water box can be used to heat the water sources inside the hot water box and the cold water box respectively. The hot air and cold air generated during the heating and cooling process will be transmitted to the person sitting on the seat plate through the through hole B located on the upper end surface of the seat plate. When spring or autumn comes, calming herbs can be added to the herbal storage box, and the herbal storage box can be installed inside the installation groove. When someone sits on the plastic chair body in spring or autumn to bask in the sun, the smell of the herbs can make the person feel more peaceful. The above technical solution improves the overall comfort of the plastic chair body, and its function can be adjusted according to seasonal changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the bottom structure of the present invention as a whole;

[0026] Figure 3 This is a partial internal view of the overall structure of the present invention;

[0027] Figure 4 For the present invention Figure 3 A magnified view of the structure at B in the middle;

[0028] Figure 5 A top view of the internal structure of the present invention as a whole;

[0029] Figure 6 For the present invention Figure 5 A magnified view of the structure at center.

[0030] In the figure: 1. Plastic chair body; 2. Environmental adaptation mechanism; 201. Installation slot; 202. Hot water box; 203. Cold water box; 204. Power connection line; 205. Herb storage box; 206. Drawing plate; 207. Through hole A; 208. Fixed spring; 209. Push plate; 210. Rotating fixed head; 211. Oval fixed plate; 212. Circular fixed slot; 213. Water source heating pipe kit; 214. Electric control switch; 215. Water source cooling pipe kit; 216. Fixed shaft; 3. Seat plate; 4. Through hole B; 5. Chair foot; 6. Backrest; 7. Chair foot reinforcement groove; 8. Metal chair foot reinforcement rod; 9. Backrest reinforcement groove; 10. Metal backrest reinforcement plate; 11. Connecting plate installation groove; 12. T-shaped connecting plate; 13. Internal thread connection port; 14. Internal thread groove; 15. Threaded fixing head; 16. Round plate; 17. Locking head; 18. Locking groove; 19. Square shaft; 20. Transmission round plate; 21. Square slot; 22. Transmission rod; 23. Roller bearing ring; 24. Metal tube A; 25. Metal tube B; 26. Spring; 27. Limit anti-slip ring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] See also Figures 1 to 6 An embodiment of the present invention is as follows: a plastic chair comprises a plastic chair body 1, a seat plate 3 is fixedly provided on the inner side of the plastic chair body 1, a plurality of rows of through holes B4 are provided on the upper end surface of the seat plate 3, the interior of the seat plate 3 is installed on an environmental adaptation mechanism 2, the environmental adaptation mechanism 2 comprises an installation groove 201, a hot water cartridge 202, a cold water cartridge 203, a herbal medicine storage cartridge 205 and a spring fixing mechanism, the installation groove 201 is located inside the seat plate 3, the hot water cartridge 202 is fixed to the interior of the installation groove 201 by an elastic fixing mechanism, and the outer surface shapes of the hot water cartridge 202, the cold water cartridge 203 and the herbal medicine storage cartridge 205 all match the inner wall shape of the installation groove 201.

[0033] The environmental adaptation mechanism 2 provided by the present invention also includes a drawer 206, which is slidably installed on the upper end surface of the herbal storage box 205, and the upper end surface of the drawer 206 is provided with multiple rows of through holes A207; when spring or autumn comes, the drawer 206 is opened, and calming herbs are added to the inside of the herbal storage box 205, and then the drawer 206 is closed, and the gas of the herbs can be transmitted to the outside through the through holes A207.

[0034] A water source cooling pipe set 215 fixedly installed inside the cold water box 203 is provided on one side of the drawer 206, and a water source heating pipe set 213 fixedly installed inside the hot water box 202 is provided on one side of the water source cooling pipe set 215; one side of the rear end surface of the water source heating pipe set 213 and the fixed rotating shaft 216 is connected to a power connection line 204, and one side of the two power connection lines 204 is provided with an electric control switch 214, the two electric control switches 214 are respectively fixed to the outer surface of the hot water box 202 and the cold water box 203, and the two electric control switches 214 are respectively electrically connected to the water source heating pipe set 213 and the water source cooling pipe set 215; the water source heating pipe set 213 and the water source cooling pipe set 215 can be respectively controlled by the two electric control switches 214, and the water sources located inside the hot water box 202 and the cold water box 203 can be heated by the water source heating pipe set 213 and the water source cooling pipe set 215.

[0035] A rotating fixed head 210 is provided in the middle position behind the hot water box 202, the cold water box 203 and the herb storage box 205, and a fixed shaft 216 is fixed in the middle position of the front end surface of the rotating fixed head 210. The three fixed shafts 216 are respectively located inside the hot water box 202, the cold water box 203 and the herb storage box 205, and the three fixed shafts 216 are connected to the hot water box 202, the cold water box 203 and the herb storage box 205 through roller bearings.

[0036] An elliptical fixing plate 211 is fixedly sleeved on one side of the outer surface of the fixed rotating shaft 216. A circular fixing groove 212 located on the inner wall of the mounting groove 201 is provided on the outer side of the elliptical fixing plate 211 sleeved on the outer surface of the fixed rotating shaft 216 inside the hot water cartridge 202. The top end and the bottom end of the elliptical fixing plate 211 are both located inside the circular fixing groove 212, and the elliptical fixing plate 211 is elliptical as a whole. A push plate 209 is connected to the front end surface of the hot water cartridge 202, and both ends of the push plate 209 are slidably connected to the inner wall of the mounting groove 201. And both sides of the front end surface of the push plate 209 are connected with a fixing spring 208; when the hot water cartridge 202 needs to be used, the rotating fixed head 210 located behind the hot water cartridge 202 is manually rotated first, and when the rotating fixed head 210 rotates, the fixed shaft 216 fixed to the middle position of the front end surface of the rotating fixed head 210 will rotate together with it, and when the fixed shaft 216 rotates, the elliptical fixing plate 211 sleeved on the outer surface of the fixed shaft 216 will also rotate accordingly, and the elliptical fixing plate 211 is adjusted to a parallel state, and then the hot water cartridge 202 is inserted into the hot water cartridge 202. The hot water cartridge 202 is inserted into the installation groove 201. As the hot water cartridge 202 goes deeper, the front end surface of the hot water cartridge 202 will contact the push plate 209 and push the push plate 209 forward. As the push plate 209 moves, the push plate 209 will squeeze the fixing spring 208. When the hot water cartridge 202 is completely inserted into the installation groove 201, the rotating fixing head 210 is manually rotated to adjust the elliptical fixing plate 211 to an upright state, so that the top end and the bottom end of the elliptical fixing plate 211 are both stuck in the inner wall of the installation groove 201. The hot water cartridge 202 is fixed inside the circular fixing groove 212 by the reaction force of the squeezed fixing spring 208, and then the power source is connected through the power connection line 204 located outside the hot water cartridge 202, and the water source heating pipe kit 213 is started through the corresponding electric control switch 214, so as to heat the water source located inside the hot water cartridge 202. The hot air generated when heating the water source will be transmitted to the person sitting on the seat plate 3 through the through hole B4 located on the upper end surface of the seat plate 3, so as to increase the temperature of the environment around the seat plate 3.

[0037] When autumn comes, the rotating fixing head 210 is rotated to adjust the oval fixing plate 211 to a parallel state. When the top end and the bottom end of the oval fixing plate 211 are both removed from the inside of the circular fixing groove 212, the hot water cartridge 202 can be ejected from the inside of the installation groove 201 by the reaction force of the squeezed fixing spring 208. Then, the herbal storage box 205 containing the soothing herbs is fixed to the inside of the installation groove 201 in the same manner as the hot water cartridge 202. The herbal odor inside the herbal storage box 205 can be smelled by the hot water cartridge 202. Through hole A207 and through hole B4 transmit air to the surroundings of a person sitting on the seat plate 3, so that the person can feel more peaceful when basking in the sun. When winter comes, the herbal storage box 205 is removed and the cold water box 203 is installed. The water source inside the cold water box 203 is cooled by the water source cooling pipe kit 215 inside the cold water box 203. The cold air generated during the cooling process will be transmitted to the human body through the through hole B4. The above technical solution improves the overall comfort of the plastic chair body 1 and can adjust its functions according to seasonal changes.

[0038] A reinforcement mechanism is provided at the bottom of the plastic chair body 1, and the reinforcement mechanism includes four chair feet 5, four chair foot reinforcement grooves 7, four metal chair foot reinforcement rods 8, a backrest 6, a backrest reinforcement groove 9, a metal backrest reinforcement plate 10, a T-shaped connecting plate 12 and an anti-loosening threaded fixing mechanism. The four chair feet 5 are respectively located above the four metal chair foot reinforcement rods 8, the upper end surfaces of the chair feet 5 are fixed to the plastic chair body 1, and the four chair foot reinforcement grooves 7 are respectively located on the lower end surfaces of the four chair feet 5.

[0039] The backrest 6 is located above the metal backrest reinforcement plate 10, the surface of the backrest 6 facing the plastic chair body 1 is fixed to the plastic chair body 1 and the backrest reinforcement groove 9 is located at the lower end surface of the backrest 6, and the T-shaped connecting plate 12 is fixed to four metal chair leg reinforcement rods 8 and a metal backrest reinforcement plate 10 at the same time, and the T-shaped connecting plate 12 can be fixed to the lower end surface of the seat plate 3 through an anti-loosening threaded fixing mechanism.

[0040] Furthermore, the anti-loosening threaded fixing mechanism includes an internal thread groove 14, and a connecting plate mounting groove 11 located on the lower end surface of the seat plate 3 is provided above the internal thread groove 14, and an internal thread connecting port 13 is provided on one side of the inner wall of the upper end of the connecting plate mounting groove 11, and the position of the internal thread connecting port 13 corresponds to the position of the internal thread groove 14; in the process of producing the plastic chair body 1, it is necessary to insert the metal chair leg reinforcement rod 8, the metal backrest reinforcement plate 10 and the T-shaped connecting plate 12 into the chair leg reinforcement groove 7 located on the lower end surface of the chair leg 5, the backrest reinforcement groove 9 on the lower end surface of the backrest 6 and the connecting plate mounting groove 11 located on the lower end surface of the seat plate 3 respectively.

[0041] A circular plate 16 is provided below the internal thread groove 14 and is located inside the T-shaped connecting plate 12 . A manual rotating handle is fixedly provided at the middle position of the lower end surface of the circular plate 16 .

[0042] Specifically, the outer side of the lower end surface of the circular plate 16 is connected to a roller bearing ring 23 through a roller bearing, and a metal tube A24 is fixedly provided on both sides of the lower end surface of the roller bearing ring 23. The interior of the metal tube A24 is provided with a metal tube B25 that fits with the inner wall thereof, and the lower end surface of the metal tube B25 is fixed to the interior of the T-shaped connecting plate 12. A spring 26 is provided inside the metal tube B25 and the metal tube A24, and the upper and lower ends of the spring 26 are respectively connected to the interior of the roller bearing ring 23 and the T-shaped connecting plate 12.

[0043] A circle of locking head 17 is fixedly provided on the outer side of the upper end surface of the circular plate 16, and a locking groove 18 located inside the T-shaped connecting plate 12 is provided on the outer side of the locking head 17, and the locking head 17 is stuck in the locking groove 18; then the circular plate 16 is pulled downward by manually rotating the handle, and when the circular plate 16 moves downward, the roller bearing ring 23 connected to the outer side of the lower end surface of the circular plate 16 will move downward together and squeeze the spring 26.

[0044] When the circular plate 16 moves downward, the locking head 17 fixed on its upper end surface will leave from the inside of the locking groove 18. Only when the locking head 17 completely leaves from the inside of the locking groove 18 can the circular plate 16 be rotated.

[0045] A square shaft 19 is fixedly provided in the middle position of the upper end surface of the circular plate 16, and a transmission circular plate 20 connected to the T-shaped connecting plate 12 through a roller bearing is provided on the outer side of the square shaft 19, and a square slot 21 is provided in the middle position of the upper end surface of the transmission circular plate 20, and the square shaft 19 vertically penetrates the square slot 21, and the inner wall cross-sectional shape of the square shaft 19 is square, and the outer surface of the square shaft 19 fits with the inner wall of the square slot 21, and the square shaft 19 and the square slot 21 are slidingly connected; when the locking head 17 completely leaves the inside of the locking groove 18, the circular plate 16 is rotated by manually rotating the handle, and the square shaft 19 fixed to the upper end surface of the circular plate 16 during the rotation process will rotate therewith, and because the outer surface of the square shaft 19 fits with the inner wall of the square slot 21 located in the middle position of the upper end surface of the transmission circular plate 20, when the square shaft 19 rotates, the transmission circular plate 20 will rotate therewith.

[0046] A threaded fixing head 15 located inside the internal thread groove 14 is provided above the transmission circular plate 20, and a limit anti-slip ring 27 is movably provided on both sides of the inside of the threaded fixing head 15. The axis of the limit anti-slip ring 27 is connected with a transmission rod 22 slidably connected to the threaded fixing head 15, and the lower end faces of the two transmission rods 22 are respectively fixed to the two sides of the upper end face of the transmission circular plate 20; when the transmission circular plate 20 rotates, the transmission rod 22 fixed to the upper end face of the transmission circular plate 20 will revolve around the square slot 21 as the center, and the threaded fixing head 15 can be driven to rotate by the two revolving transmission rods 22. With the rotation of the threaded fixing head 15 and the internal thread transmission of the internal thread groove 14, the threaded fixing head 15 can move up and down. At this time, the threaded fixing head 15 is moved upward. With the rise of the threaded fixing head 15, the threaded fixing head 15 will enter the inner wall of the internal thread connection port 13 on the inner wall of the connecting plate mounting groove 11, so as to connect the T-shaped The connecting plate 12 is fixed inside the connecting plate mounting groove 11. When the threaded fixing head 15 can no longer move upward, the T-shaped connecting plate 12 is fixed. When the T-shaped connecting plate 12 is fixed, the direction of the circular plate 16 is adjusted, and the multiple locking heads 17 located on the outer side of the upper end surface of the circular plate 16 are aligned with the locking groove 18. Then, the manual rotating handle is released, and the locking head 17 can be clamped into the locking groove 18 again through the reaction force of the squeezed spring 26, so as to fix the circular plate 16. When the circular plate 16 is fixed and cannot rotate, the threaded fixing head 15 indirectly connected to it will also be fixed and cannot rotate. By fixing the threaded fixing head 15, it can be prevented from rotating without authorization, thereby causing the T-shaped connecting plate 12 to loosen. The above technical solution can prevent the metal chair leg reinforcement rod 8, the metal backrest reinforcement plate 10 and the T-shaped connecting plate 12 from loosening as the use time increases.

[0047] The position-limiting anti-slip ring 27 fixedly sleeved on the outer surface of the transmission rod 22 can prevent the threaded fixing head 15 from completely escaping from the inner thread groove 14 .

[0048] When the T-shaped connecting plate 12 is fixed, the metal leg reinforcement rod 8 located inside the leg reinforcement groove 7 and the metal back reinforcement plate 10 located inside the back reinforcement groove 9 will be fixed together. By fixing the metal leg reinforcement rod 8 inside the leg 5 and the metal back reinforcement plate 10 fixed inside the backrest 6, the overall strength of the plastic chair body 1 can be increased, preventing the leg 5 and the backrest 6 from being bent and damaged due to external forces. The above technical solution increases the service life of the plastic chair body 1.

[0049] Since the metal tube A24 fixed to the lower end face of the roller bearing ring 23 is provided with a metal tube B25 fixed between its lower end face and the inside of the T-shaped connecting plate 12, the roller bearing ring 23 itself cannot rotate. This structure can prevent the twisting force during the rotation of the circular plate 16 from being transmitted to the spring 26 located inside the metal tube A24 and the metal tube B25 through the circular plate 16, thereby causing them to be misaligned.

[0050] When the plastic chair body 1 is to be scrapped, the circular plate 16 is pulled downward and rotated in the opposite direction to release the fixation of the T-shaped connecting plate 12, and then the metal chair leg reinforcement rod 8, the metal backrest reinforcement plate 10 and the T-shaped connecting plate 12 can be directly pulled out and recycled.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A plastic chair, comprising a plastic chair body (1), characterized in that: A seat plate (3) is fixedly provided on the inner side of the plastic chair body (1), and a plurality of rows of through holes B (4) are provided on the upper end surface of the seat plate (3). The interior of the seat plate (3) is mounted on an environmental adaptation mechanism (2), and the environmental adaptation mechanism (2) comprises a mounting groove (201), a hot water box (202), a cold water box (203), a herbal medicine storage box (205), and a spring fixing mechanism. The mounting groove (201) is located inside the seat plate (3), and the hot water box (202) is fixed to the interior of the mounting groove (201) by means of an elastic fixing mechanism, and the outer surface shapes of the hot water box (202), the cold water box (203), and the herbal medicine storage box (205) all match the inner wall shape of the mounting groove (201); A reinforcement mechanism is provided below the plastic chair body (1), the reinforcement mechanism comprising four chair feet (5), four chair foot reinforcement grooves (7), four metal chair foot reinforcement rods (8), a backrest (6), a backrest reinforcement groove (9), a metal backrest reinforcement plate (10), a T-shaped connecting plate (12) and an anti-loosening threaded fixing mechanism, the four chair feet (5) are respectively located above the four metal chair foot reinforcement rods (8), the upper end surfaces of the chair feet (5) are fixed to the plastic chair body (1), and the four chair foot reinforcement grooves (7) are respectively located on the lower end surfaces of the four chair feet (5); The backrest (6) is located above the metal backrest reinforcement plate (10), the surface of the backrest (6) facing the plastic chair body (1) is fixed to the plastic chair body (1), and the backrest reinforcement groove (9) is located at the lower end surface of the backrest (6), and the T-shaped connecting plate (12) is fixed to the four metal chair leg reinforcement rods (8) and a metal backrest reinforcement plate (10) at the same time, and the T-shaped connecting plate (12) can be fixed to the lower end surface of the seat plate (3) through a loosening-proof threaded fixing mechanism.

2. A plastic chair according to claim 1, characterized in that: The environmental adaptation mechanism (2) further comprises a drawer plate (206), the drawer plate (206) being slidably mounted on the upper end surface of the herbal medicine storage box (205), and the upper end surface of the drawer plate (206) is provided with a plurality of rows of through holes A (207).

3. A plastic chair according to claim 2, characterized in that: One side of the pumping plate (206) is provided with a water source cooling pipe set (215) fixedly installed inside the cold water box (203), and one side of the water source cooling pipe set (215) is provided with a water source heating pipe set (213) fixedly installed inside the hot water box (202).

4. A plastic chair according to claim 3, characterized in that: One side of the rear end surface of the water source heating pipe set (213) and the fixed rotating shaft (216) is connected to a power connection line (204), and one side of the two power connection lines (204) is provided with an electric control switch (214). The two electric control switches (214) are respectively fixed to the outer surface of the hot water box (202) and the cold water box (203), and the two electric control switches (214) are respectively electrically connected to the water source heating pipe set (213) and the water source cooling pipe set (215).

5. A plastic chair according to claim 4, characterized in that: A rotating fixed head (210) is provided at the middle position behind each of the hot water box (202), the cold water box (203) and the herbal medicine storage box (205); a fixed rotating shaft (216) is fixedly provided at the middle position of the front end surface of the rotating fixed head (210); the three fixed rotating shafts (216) are respectively located inside the hot water box (202), the cold water box (203) and the herbal medicine storage box (205); and the three fixed rotating shafts (216) are connected to the hot water box (202), the cold water box (203) and the herbal medicine storage box (205) via roller bearings; An elliptical fixing plate (211) is fixedly sleeved on one side of the outer surface of the fixed rotating shaft (216); a circular fixing groove (212) located on the inner wall of the mounting groove (201) is provided on the outer side of the elliptical fixing plate (211) sleeved on the outer surface of the fixed rotating shaft (216) inside the hot water cartridge (202); the top end and the bottom end of the elliptical fixing plate (211) are both located inside the circular fixing groove (212); and the elliptical fixing plate (211) is elliptical as a whole.

6. A plastic chair according to claim 5, characterized in that: The front end surface of the hot water cartridge (202) is connected to a push plate (209), both ends of the push plate (209) are slidably connected to the inner wall of the mounting groove (201), and both sides of the front end surface of the push plate (209) are connected to a fixing spring (208).

7. A plastic chair according to claim 1, characterized in that: The anti-loosening threaded fixing mechanism comprises an internal thread groove (14), a connecting plate mounting groove (11) located on the lower end surface of the seat plate (3) is provided above the internal thread groove (14), an internal thread connection port (13) is provided on one side of the inner wall of the upper end of the connecting plate mounting groove (11), and the position of the internal thread connection port (13) corresponds to the position of the internal thread groove (14).

8. A plastic chair according to claim 7, characterized in that: A circular plate (16) located inside the T-shaped connecting plate (12) is provided below the internal thread groove (14), and a manual rotating handle is fixedly provided at the middle position of the lower end surface of the circular plate (16); The outer side of the lower end surface of the circular plate (16) is connected to a roller bearing ring (23) via a roller bearing, a metal tube A (24) is fixedly provided on both sides of the lower end surface of the roller bearing ring (23), a metal tube B (25) is provided inside the metal tube A (24) and is fitted with the inner wall thereof, the lower end surface of the metal tube B (25) is fixed to the inside of the T-shaped connecting plate (12), a spring (26) is provided inside the metal tube B (25) and the metal tube A (24), and the upper and lower ends of the spring (26) are respectively connected to the inside of the roller bearing ring (23) and the inside of the T-shaped connecting plate (12); A circle of locking heads (17) is fixedly provided on the outer side of the upper end surface of the circular plate (16), and a locking groove (18) located inside the T-shaped connecting plate (12) is provided on the outer side of the locking head (17), and the locking head (17) is inserted into the inside of the locking groove (18).

9. A plastic chair according to claim 8, characterized in that: A square rotating shaft (19) is fixedly provided at the middle position of the upper end surface of the circular plate (16); a transmission circular plate (20) connected to the T-shaped connecting plate (12) via a roller bearing is provided on the outer side of the square rotating shaft (19); a square slot (21) is provided at the middle position of the upper end surface of the transmission circular plate (20); the square rotating shaft (19) vertically penetrates the square slot (21); the inner wall cross-section of the square rotating shaft (19) is square; the outer surface of the square rotating shaft (19) is in contact with the inner wall of the square slot (21); and the square rotating shaft (19) and the square slot (21) are slidably connected.

10. A plastic chair according to claim 9, characterized in that: A threaded fixing head (15) located inside the internal thread groove (14) is provided above the transmission circular plate (20), and a position-limiting anti-slipping ring (27) is movably provided on both sides of the interior of the threaded fixing head (15), and a transmission rod (22) slidably connected to the threaded fixing head (15) is connected to the axis of the position-limiting anti-slipping ring (27), and the lower end surfaces of the two transmission rods (22) are respectively fixed to the two sides of the upper end surface of the transmission circular plate (20).