Portable oral treatment chair for individual soldier field operation

Abstract

The utility model discloses a portable oral cavity treatment chair for individual soldier field operations, which comprises a base, the base is connected with a seat assembly through a support frame assembly and an adjusting assembly, the seat assembly comprises a seat frame and a chair back frame which can be opened and closed, a cushion is arranged on the seat frame, a seat backrest is arranged on the chair back frame, and the seat frame is connected with the seat assembly. The adjusting assembly comprises a chair seat adjusting air pressure rod installed between the base and the chair seat frame, a chair back adjusting air pressure rod is arranged between the base and the chair back frame, the bottom end of the chair back adjusting air pressure rod is detachably installed on the base through a ball head locking pin, and a lighting assembly is further installed on the chair seat frame. The portable oral treatment chair is reasonable in structure, easy and convenient to operate, capable of being rapidly unfolded and folded, capable of effectively improving the treatment efficiency in a complex environment, small in size after being folded, light in self weight and convenient to transport and move, and a mobile treatment platform is provided for field operations.

Description

Technical Field

[0001] This utility model belongs to the field of oral treatment technology and relates to an oral treatment chair, specifically a portable oral treatment chair for individual soldiers in the field. Background Art

[0002] In field operations or emergency maneuvers, oral and maxillofacial military medics are responsible for treating maxillofacial combat injuries. There is a critical timeframe for treating maxillofacial combat injuries, known as the "platinum 10 minutes" and the "golden hour." From the perspective of combat injury treatment, the oral and maxillofacial region has a large exposed area and a high probability of injury. Fractures of the maxilla and mandible are common and frequent. If timely specialized treatment is not received, in addition to affecting oral and maxillofacial function, maxillary fractures and inflammation can lead to intracranial infection, while mandibular fractures and soft tissue injuries of the oral cavity can cause tongue retraction, difficulty breathing, and even suffocation, which can be life-threatening in severe cases.

[0003] However, most existing portable dental chairs are modular and complex in structure, with cumbersome setup and takedown procedures. It takes two engineers more than 20 minutes to set up and take down the chairs, which greatly affects the efficiency of portable comprehensive dental treatment in field environments. They also lose the efficiency of individual soldiers in cross-country operations. Furthermore, due to the cumbersome parts and inconvenience of movement, there are cases of lost parts and damaged chairs when mobile medical teams travel, which greatly affects the efficiency of mobile medical teams. At the same time, existing portable dental chairs are heavy, making them inconvenient for individual soldiers to move and use. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a portable oral treatment chair for individual soldiers in the field, which can solve the technical problems of existing portable oral treatment instruments being laborious to install and collect fees, inconvenient to move, and affecting the efficiency of outpatient visits.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A portable oral treatment chair for individual soldiers in the field includes a base with a rectangular frame structure, characterized in that the base is connected to a seat assembly via a support frame assembly and an adjustment assembly;

[0007] The seat assembly includes a seat frame and a backrest frame hinged at the ends. A seat cushion and a pair of armrests are mounted on the upper surface of the seat frame, with the pair of armrests located on both sides of the seat cushion. A seat back is mounted on the upper surface of the backrest frame.

[0008] The support frame assembly includes a front support frame and a rear support frame that are identical in structure and arranged in parallel. The top two lateral ends of the front support frame and the rear support frame are rotatably mounted on the lower surface of the chair frame, and the bottom two lateral ends of the front support frame and the rear support frame are rotatably mounted on the upper surface of the base.

[0009] The adjustment assembly includes a seat adjustment gas spring and a backrest adjustment gas spring. A first mounting seat is provided at the center of the upper surface of the rear frame of the base, a second mounting seat is provided at the center of the inner surface of the rear frame of the base, a third mounting seat is provided at the center of the lower surface of the backrest frame, and a fourth mounting seat is provided at the center of the lower surface of the seat frame. The fixed end of the seat adjustment gas spring is rotatably mounted on the second mounting seat, and the output end of the seat adjustment gas spring is rotatably mounted on the fourth mounting seat. The fixed end of the backrest adjustment gas spring is detachably mounted on the first mounting seat via a ball joint locking pin, and the output end of the backrest adjustment gas spring is rotatably mounted on the third mounting seat.

[0010] A lighting component is installed on one of the transverse sides of the chair frame.

[0011] This utility model also includes the following technical features:

[0012] The base is provided with a pair of first lower support columns and a pair of second lower support columns, which are symmetrically arranged on the upper surfaces of the two horizontal sides of the base. The chair frame is provided with a pair of first upper support columns and a pair of second upper support columns, which are symmetrically arranged on the lower surfaces of the two horizontal sides of the chair frame.

[0013] Both the front and rear support frames include a pair of support rods. The top ends of each pair of support rods are fixedly connected by a connecting rod. The bottom ends of the pair of support rods of the front support frame are rotatably connected to the first lower support column on the corresponding side via a connecting shaft. The lateral ends of the connecting rod of the front support frame are rotatably connected to the first upper support column on the corresponding side via a connecting shaft. The bottom ends of the pair of support rods of the rear support frame are rotatably connected to the second lower support column on the corresponding side via a connecting shaft. The lateral ends of the connecting rod of the rear support frame are rotatably connected to the second upper support column on the corresponding side via a connecting shaft. The bottoms of the pair of support rods of the front support frame are connected by a U-shaped reinforcing rod.

[0014] The first lower support column is higher than the second lower support column, the first lower support column is the same height as the second upper support column, and the second lower support column is the same height as the first upper support column.

[0015] The top ends of the first and second lower support columns are provided with rubber pads, and the bottom ends of the first and second upper support columns are also provided with rubber pads.

[0016] The lighting assembly includes a mounting plate installed on one of the transverse side edges of the chair frame. A rotary damper is installed on the outer wall of the mounting plate, a damper rocker arm is installed on the rotary damper, a connecting plate is installed on the damper rocker arm, a telescopic rod is provided on the connecting plate, the bottom end of the telescopic rod is installed on the side wall of the connecting plate by a fastener, a gooseneck tube is inserted into the top end of the telescopic rod, and a lighting lamp is installed at the top end of the gooseneck tube.

[0017] The lighting assembly also includes a battery box and a lamp switch base. The battery box is installed on the lower surface of the chair frame, and a lamp switch is installed on the lamp switch base. The side wall of the lamp switch base is fixedly connected to the inner side of the horizontal frame of the base.

[0018] The battery box, lamp switch, and lighting lamp are connected in series via a power cord.

[0019] The chair frame is provided with a leg support assembly below it. The leg support assembly includes a pair of sleeves and a pair of pull rods. The pair of sleeves are installed on the lower surface of the chair frame. The rear ends of the pair of pull rods are inserted into the sleeves on the corresponding side. The front ends of the pair of pull rods are connected by a pair of horizontal support rods. Leg pads are installed on the pair of horizontal support rods. Fixing knobs are installed on the front ends of the pair of sleeves respectively.

[0020] The output end of the seat adjustment gas spring is provided with a seat adjustment handle for adjusting the extension and retraction of the seat adjustment gas spring, and the output end of the backrest adjustment gas spring is provided with a backrest adjustment handle for adjusting the extension and retraction of the backrest adjustment gas spring.

[0021] The upper surface of the seat back is provided with a headrest.

[0022] A pair of directional wheels are installed on the outer wall of the rear frame of the base.

[0023] The included angle between the first mounting base and the second mounting base is 90° to 120°.

[0024] Compared with the prior art, this utility model has the following technical effects:

[0025] The portable dental chair of this invention has a reasonable structure and is easy to operate. The installation and removal of the bottom end of the backrest adjustment gas spring and the first mounting seat can be controlled by the ball joint locking pin to quickly complete the unfolding and folding of the dental chair. It is convenient for individual soldiers to operate quickly in the field or emergency mobility situation. It is suitable for land combat environments such as mountains, deserts, grasslands, and plateaus, and effectively improves the treatment efficiency in complex environments. The overall frame of the dental chair can achieve a small volume after folding while ensuring functionality and strength. It is also lightweight and has a large load-bearing capacity, which is convenient for transportation and movement. It meets the standards of normal diagnosis and treatment and can also meet the needs of oral disease prevention and treatment and oral and maxillofacial war trauma emergency treatment in wartime, providing a mobile treatment platform for the field. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 This is a schematic diagram of the overall framework structure of this utility model.

[0028] Figure 3 This is a bottom view of the present invention.

[0029] Figure 4 This is a side view of the present invention.

[0030] The meanings of the labels in the diagram are as follows:

[0031] 1. Base; 2. Support frame assembly; 3. Adjustment assembly; 4. Seat assembly; 5. Lighting assembly; 6. Switch base; 7. Leg support assembly; 8. Rubber pad.

[0032] 11. First mounting base; 12. Second mounting base; 13. Third mounting base; 14. Fourth mounting base; 15. First lower support column; 16. Second lower support column; 17. Directional wheel;

[0033] 21. Front support frame; 22. Rear support frame;

[0034] 211. Support rod; 212. Connecting rod; 213. U-shaped reinforcing rod;

[0035] 31. Seat adjustment gas spring; 32. Backrest adjustment gas spring; 33. Seat adjustment handle; 34. Backrest adjustment handle.

[0036] 41. Seat frame; 42. Backrest frame; 43. Seat cushion; 44. Armrest; 45. Seat back; 46. First upper support column; 47. Second upper support column; 48. Headrest.

[0037] 51. Mounting plate; 52. Rotary damper; 53. Damper rocker arm; 54. Connecting plate; 55. Telescopic rod; 56. Gooseneck tube; 57. Lighting lamp; 58. Battery box; 59. Light switch.

[0038] 71. Sleeve; 72. Pull-out rod; 73. Horizontal support rod; 74. Leg pad; 75. Fixing knob.

[0039] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0040] Following the above technical solution, the following are specific embodiments of this utility model. It should be noted that this utility model is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model.

[0041] In this utility model, unless otherwise stated, directional terms such as "upper", "lower", "left", "right", "front", and "rear" are generally defined based on the drawing in the corresponding figure, and "inner" and "outer" refer to the inner and outer contours of the corresponding components.

[0042] Example:

[0043] This embodiment provides a portable oral treatment chair for individual soldiers in the field, such as... Figures 1 to 4 As shown, the base 1 includes a rectangular frame structure, and the base 1 is connected to the seat assembly 4 via a support frame assembly 2 and an adjustment assembly 3;

[0044] The seat assembly 4 includes a seat frame 41 and a backrest frame 42 with hinged ends. The upper surface of the seat frame 41 is fitted with a seat cushion 43 and a pair of armrests 44, which are located on both sides of the seat cushion 43. The upper surface of the backrest frame 42 is fitted with a seat back 45. Specifically, the seat frame 41 is provided with a pair of vertical bars, which are fixedly installed at both ends of the rear frame of the seat frame 41. The backrest frame 42 is provided with a pair of Z-shaped connectors, one end of which is fixedly installed at both ends of the lower frame of the backrest frame 42. The other end of which is rotatably installed at the top of the vertical bar on the corresponding side via a rotating shaft. This structure allows the backrest frame 42 to be folded relative to the seat frame 41 until the seat back 45 is completely flush with the seat cushion 43, minimizing the height of the folded dental chair.

[0045] The support frame assembly 2 includes a front support frame 21 and a rear support frame 22 with the same structure and arranged in parallel. The top lateral ends of the front support frame 21 and the rear support frame 22 are rotatably mounted on the lower surface of the chair frame 41, and the bottom lateral ends of the front support frame 21 and the rear support frame 22 are rotatably mounted on the upper surface of the base 1. The opening and closing between the base 1 and the seat assembly 4 is realized by the parallel rotation and folding of the front support frame 21 and the rear support frame 22 in the same direction. The parallel folding further reduces the height of the dental treatment chair after folding.

[0046] The adjustment assembly 3 includes a seat adjustment gas spring 31 and a backrest adjustment gas spring 32 located below the central axis of the seat assembly 4. A first mounting seat 11 is located at the center of the upper surface of the rear frame of the base 1, a second mounting seat 12 is located at the center of the inner surface of the rear frame of the base 1, a third mounting seat 13 is located at the center of the lower surface of the backrest frame 42, and a fourth mounting seat 14 is located at the center of the lower surface of the seat frame 41. Specifically, the third mounting seat 13 is located on the lower surface of the upper half of the backrest frame 42, and the fourth mounting seat 14 is located on the lower surface of the front half of the seat frame 41. The fixed end of the seat adjustment gas spring 31 is rotatably mounted on the second mounting base 12 via a rotating shaft. The output end of the seat adjustment gas spring 31 is rotatably mounted on the fourth mounting base 14 via a rotating shaft. The output end of the backrest adjustment gas spring 32 is rotatably mounted on the third mounting base 13 via a rotating shaft. The fixed end of the backrest adjustment gas spring 32 is detachably mounted on the first mounting base 11 via a ball-head locking pin. Specifically, in this embodiment, the ball-head locking pin (not marked in the figure) is a push-button steel ball positioning pin. When the backrest frame 42 needs to be retracted, the top button of the ball-head locking pin is pressed. The two steel balls on the side wall of the ball head locking pin retract into the sliding pin cavity of the ball head locking pin, and the ball head locking pin is pulled out. The bottom end of the backrest adjustment gas spring 32 separates from the first mounting base 11. When installation is required, align the mounting hole at the bottom end of the backrest adjustment gas spring 32 with the mounting hole of the first mounting base 11, press the top button of the ball head locking pin, insert the ball head locking pin into the above mounting hole, and after the end of the ball head locking pin protrudes from the outer side wall of the first mounting base 11, release the top button of the ball head locking pin. The two steel balls of the ball head locking pin protrude from the side wall of the ball head locking pin, and the fixed end of the backrest adjustment gas spring 32 is then secured. The backrest adjustment gas spring 32 is rotatably mounted on the first mounting base 11. The detachable structure of the backrest adjustment gas spring 32 and the first mounting base 11 allows the backrest frame 42 to be folded onto the upper surface of the seat frame 41. The ball joint locking pin facilitates one-handed operation, and the installation and removal of the backrest adjustment gas spring 32 can be achieved without tools, saving time and effort. The distance between the seat assembly 4 and the base 1 can be adjusted by adjusting the extension and retraction of the seat adjustment gas spring 31, and the angle between the backrest frame 42 and the seat frame 41 can be adjusted by adjusting the extension and retraction of the backrest adjustment gas spring 32. A lighting assembly 5 is installed on one side of the seat frame 41.

[0047] As a preferred embodiment, the base 1 is provided with a pair of first lower support columns 15 and a pair of second lower support columns 16. The pair of first lower support columns 15 and the pair of second lower support columns 16 are symmetrically arranged on the upper surfaces of the two horizontal sidewalls of the base 1. The chair frame 41 is provided with a pair of first upper support columns 46 and a pair of second upper support columns 47. The pair of first upper support columns 46 and the pair of second upper support columns 47 are symmetrically arranged on the lower surfaces of the two horizontal sidewalls of the chair frame 41. Specifically, the pair of first lower support columns 15 and the pair of second lower support columns 16 are arranged in the front half of the base 1, and the pair of first upper support columns 46 and the pair of second upper support columns 47 are arranged in the rear half of the chair frame 41. The above arrangement minimizes the length of the dental chair when it is folded and ensures overall stability when it is unfolded for use.

[0048] Both the front support frame 21 and the rear support frame 22 include a pair of support rods 211. The top ends of each pair of support rods 211 are fixedly connected by a connecting rod 212. The "gate"-shaped structure of the front support frame 21 and the rear support frame 22 can improve the overall support strength and stability of the support assembly 2. The bottom ends of the pair of support rods 211 of the front support frame 21 are rotatably connected to the first lower support column 15 on the corresponding side through a connecting shaft. The lateral ends of the connecting rods 212 of the front support frame 21 are connected to the first upper support column 46 on the corresponding side through a connecting shaft. Rotary connection; the bottom ends of a pair of support rods 211 of the rear support frame 22 are rotatably connected to the second lower support column 16 on the corresponding side via a connecting shaft, and the two lateral ends of the connecting rod 212 of the rear support frame 22 are rotatably connected to the second upper support column 47 on the corresponding side via a connecting shaft; the bottom ends of a pair of support rods 211 of the front support frame 21 are connected by a U-shaped reinforcing rod 213, with the open end of the U-shaped reinforcing rod 213 facing upward, which plays an auxiliary support role when the dental chair is folded, avoiding damage to the dental chair by external force.

[0049] Furthermore, the first lower support column is 15 meters higher than the second lower support column 16. The first lower support column 15 is the same height as the second upper support column 47, and the second lower support column 16 is the same height as the first upper support column 46. When the dental chair is folded, the front support frame 21 is located above the rear support frame 22. The height difference between the support columns prevents collisions during folding.

[0050] Rubber pads 8 are provided at the top of the first lower support column 15 and the second lower support column 16, and rubber pads 8 are also provided at the bottom of the first upper support column 46 and the second upper support column 47. The rubber pads 8 prevent the top or bottom of the support column from colliding with the corresponding parts.

[0051] As a preferred embodiment, the lighting assembly 5 includes a mounting plate 51 installed on one side of the seat frame 41. A rotary damper 52 is installed on the outer wall of the mounting plate 51. A damper rocker arm 53 is installed on the rotary damper 52. A connecting plate 54 is installed on the damper rocker arm 53. A telescopic rod 55 is provided on the connecting plate 54. The bottom end of the telescopic rod 55 is installed on the side wall of the connecting plate 54 by a fixing member. A gooseneck tube 56 is inserted into the top end of the telescopic rod 55. A lighting lamp 57 is installed at the top end of the gooseneck tube 56. The rotary damper 52 and the damper rocker arm 53 work together to drive the telescopic rod 55 to rotate and stop stably at the position where the lighting lamp 57 needs to be illuminated. The illumination angle of the lighting lamp 57 can be adjusted by the gooseneck tube 56. When the dental chair is folded up, the lighting assembly 5 can be rotated and folded up and placed between the seat cushion 43 and the seat back 45.

[0052] Furthermore, the lighting assembly 5 also includes a battery box 58 and a lamp switch 59. The battery box 58 is installed on the lower surface of the seat frame 41, and the lamp switch 59 is installed on the switch base 6. The side wall of the switch base 6 is fixedly connected to the inner side of the horizontal frame of the base 1. The position of the switch base 6 allows the user to control the switch of the lighting lamp 57 with their foot, making it easy to operate.

[0053] The battery box 58, the light switch 59, and the lighting lamp 57 are connected in series via a power cord. In field conditions, the battery box 58 can be equipped with a high-capacity battery to provide power to the lighting lamp 57.

[0054] As a preferred embodiment, a leg support assembly 7 is provided below the seat frame 41. The leg support assembly 7 includes a pair of sleeves 71 and a pair of pull rods 72. The pair of sleeves 71 are installed on the lower surface of the seat frame 41, and the battery box 58 is installed on the lower surface of the seat frame 41 between the pair of sleeves 71. This does not affect the use of the support assembly 2 and also saves space. The rear ends of the pair of pull rods 72 are inserted into the sleeves 71 on the corresponding side. The front ends of the pair of pull rods 72 are connected by a pair of horizontal support rods 73. Leg pads 74 are installed on the pair of horizontal support rods 73. The relative position between the pair of pull rods 72 and the pair of sleeves 71 can be adjusted according to the user's leg length to improve the user's comfort. The front ends of the pair of sleeves 71 are respectively equipped with fixing knobs 75. When the pair of pull rods 72 are retracted, the pulling rods 72 are fixed by fixing knobs 75 to prevent the pulling rods 72 from sliding out of the sleeves 71.

[0055] As a preferred embodiment, the output end of the seat adjustment gas spring 31 is provided with a seat adjustment handle 33 for adjusting the extension and retraction of the seat adjustment gas spring 31. When the seat adjustment handle 33 is turned without applying external force to the seat frame 41, the seat adjustment gas spring 31 extends and lifts the seat frame 41 upward. When the seat adjustment handle 33 is turned while applying external force downward from above the seat frame 41, the seat adjustment gas spring 31 retracts until the height between the seat frame 41 and the base 1 reaches the ideal value. Then, the seat adjustment handle 33 is released, keeping the length of the seat adjustment gas spring 31 fixed. The output end of the backrest adjustment gas spring 32 is provided with a... Adjusting the backrest adjustment gas spring 32 and the telescopic backrest adjustment handle 34: When the backrest adjustment handle 34 is pulled without applying external force to the backrest frame 42, the backrest adjustment gas spring 32 pushes the backrest frame 42 upward, and the angle between the seat frame 41 and the backrest frame 42 becomes smaller and smaller. When the backrest adjustment handle 34 is pulled while applying external force from the front of the backrest frame 42, the backrest adjustment gas spring 32 retracts, and the angle between the seat frame 41 and the backrest frame 42 becomes larger and larger. After the angle between the seat frame 41 and the backrest frame 42 is appropriate, the backrest adjustment handle 34 is released, so that the length of the backrest adjustment gas spring 32 remains fixed. The above adjustment method is quick, simple, time-saving and labor-saving.

[0056] The backrest adjustment gas spring 32 is equipped with a backrest adjustment handle 34. The extension and retraction of the backrest adjustment gas spring 32 are controlled by moving the backrest adjustment handle 34 and applying external force to the backrest frame 42, thereby adjusting the tilt angle of the backrest frame 42. When the backrest frame 42 reaches the appropriate angle, the backrest adjustment handle 34 is released to keep the length of the backrest adjustment gas spring 32 fixed.

[0057] As a preferred embodiment, a headrest 48 is provided on the upper surface of the seat back 45.

[0058] As a preferred embodiment, a pair of directional wheels 17 are installed on the outer side wall of the rear frame of the base 1 to facilitate the movement of the dental treatment chair.

[0059] As a preferred embodiment, the included angle between the first mounting base 11 and the second mounting base 12 is 90° to 120°. This angle setting makes the angle between the seat frame 41 and the backrest frame 42 range from 100° to 180°.

[0060] The dental chair in this embodiment has a folded size of 800mm*600mm*300mm and an unfolded size of 1720mm*500mm*600mm. Its weight can be controlled at 25kg, and its total load-bearing capacity can reach 153kg. In field and emergency mobility conditions, its small size and light weight make it easier to fold the dental chair and put it into a backpack or box of appropriate size, making it easier for individual soldiers to transport and move.

[0061] In actual operation, this embodiment is as follows:

[0062] Take the folded dental chair out of the backpack or case and place it flat on the ground. Turn the seat adjustment handle 33; without external force, the output end of the seat adjustment gas lever 31 will lift the seat assembly 4 upwards, and the support frame assembly 2 will simultaneously unfold from its folded state. Once the seat assembly 4 has risen to the appropriate position, release the seat adjustment handle 33; the length of the seat adjustment gas lever 31 will remain fixed. Then, unfold the backrest frame 42 outwards relative to the seat frame 41. Press the button on the ball joint locking pin to mount the bottom end of the backrest adjustment gas lever 32 onto the first mounting base 11. Pull the telescopic rod 55 upwards to lift the lighting assembly. 5. Change from a horizontal to a vertical position, have the patient or injured person sit on the seat cushion 43, pull the pull rod 72 to support the leg pad 74 under the patient's or injured person's lower legs, and then use the fixing knob to fix the pull rod 72. After the patient or injured person lies on the seat back 45, pull the chair back adjustment handle 34. After the chair back frame 42 reaches the appropriate angle, release the chair back adjustment handle 34 to keep the length of the chair back adjustment gas lever 32 fixed. Adjust the angle of the telescopic rod 55 and the gooseneck tube 56 so that the lighting lamp 57 is pointed towards the patient's mouth or the injured person's wound site. Turn on the lighting lamp 57 by stepping on the light switch 59 to begin further treatment operations.

[0063] After treatment, the patient or injured person leaves the dental chair. The foot switch 59 turns off the light 57, the locking knob 75 is released, the pull rod 72 is pushed back to its initial position, and the telescopic rod 55 is rotated to return the lighting assembly 5 from a vertical to a horizontal position. The light 57 is placed on the upper surface of the seat cushion 43. While operating the backrest adjustment handle 34, the seat back 45 is pressed down, causing the backrest adjustment gas spring 32 to retract to its initial length under external force. The backrest adjustment handle 34 is released, and the button on the ball-head locking pin is pressed. Pull out the ball-head locking pin to separate the bottom end of the backrest adjustment gas lever 32 from the first mounting seat 11. Then fold the backrest frame 42 relative to the seat frame 41. While pulling the seat adjustment handle 33, press down on the backrest frame 42. The seat adjustment gas lever 31 retracts to its initial length under the action of external force. At the same time, the support frame assembly 2 returns from the unfolded state to the folded state. After the dental treatment chair is folded back to its initial state, release the seat adjustment handle 33 and put the folded dental treatment chair back into the backpack or case.

Claims

1. A portable field dental chair for individual soldiers, comprising a base (1) with a rectangular frame structure, characterized in that, The base (1) is connected to the seat assembly (4) via the support frame assembly (2) and the adjustment assembly (3); The seat assembly (4) includes a seat frame (41) and a backrest frame (42) hinged at the ends. A seat cushion (43) and a pair of armrests (44) are installed on the upper surface of the seat frame (41). The pair of armrests (44) are located on both sides of the seat cushion (43). A seat back (45) is installed on the upper surface of the backrest frame (42). The support frame assembly (2) includes a front support frame (21) and a rear support frame (22) with the same structure and arranged in parallel. The top two lateral ends of the front support frame (21) and the rear support frame (22) are rotatably mounted on the lower surface of the chair frame (41), and the bottom two lateral ends of the front support frame (21) and the rear support frame (22) are rotatably mounted on the upper surface of the base (1). The adjustment component (3) includes a seat adjustment gas spring (31) and a backrest adjustment gas spring (32). A first mounting seat (11) is provided on the upper surface of the middle part of the rear frame of the base (1). A second mounting seat (12) is provided on the middle part of the inner surface of the rear frame of the base (1). A third mounting seat (13) is provided on the middle part of the lower surface of the backrest frame (42). A fourth mounting seat (14) is provided on the middle part of the lower surface of the seat frame (41). The fixed end of the seat adjustment gas spring (31) is rotatably mounted on the second mounting seat (12). The output end of the seat adjustment gas spring (31) is rotatably mounted on the fourth mounting seat (14). The fixed end of the backrest adjustment gas spring (32) is detachably mounted on the first mounting seat (11) through a ball head locking pin. The output end of the backrest adjustment gas spring (32) is rotatably mounted on the third mounting seat (13). A lighting component (5) is installed on one side of the seat frame (41).

2. The portable field dental chair for individual soldiers as described in claim 1, characterized in that, The base (1) is provided with a pair of first lower support columns (15) and a pair of second lower support columns (16). The pair of first lower support columns (15) and the pair of second lower support columns (16) are symmetrically arranged on the upper surface of the two horizontal side frames of the base (1). The chair frame (41) is provided with a pair of first upper support columns (46) and a pair of second upper support columns (47). The pair of first upper support columns (46) and the pair of second upper support columns (47) are symmetrically arranged on the lower surface of the two horizontal side frames of the chair frame (41). The front support frame (21) and the rear support frame (22) each include a pair of support rods (211). The top ends of each pair of support rods (211) are fixedly connected by a connecting rod (212). The bottom ends of the pair of support rods (211) of the front support frame (21) are rotatably connected to the first lower support column (15) on the corresponding side of the front support frame (21) via a connecting shaft. The two lateral ends of the connecting rod (212) of the front support frame (21) are rotatably connected to the first upper support column (46) on the corresponding side of the rear support frame (22). The bottom ends of the pair of support rods (211) of the rear support frame (22) are rotatably connected to the second lower support column (16) on the corresponding side of the rear support frame (22). The two lateral ends of the connecting rod (212) of the rear support frame (22) are rotatably connected to the second upper support column (47) on the corresponding side of the rear support frame (22) via a connecting shaft. The bottom ends of the pair of support rods (211) of the front support frame (21) are connected by a U-shaped reinforcing rod (213).

3. The portable field dental chair for individual soldiers as described in claim 2, characterized in that, The first lower support column (15) is higher than the second lower support column (16). The first lower support column (15) is at the same height as the second upper support column (47), and the second lower support column (16) is at the same height as the first upper support column (46). The top ends of the first lower support column (15) and the second lower support column (16) are provided with rubber pads (8), and the bottom ends of the first upper support column (46) and the second upper support column (47) are also provided with rubber pads (8).

4. The portable field dental chair for individual soldiers as described in claim 1, characterized in that, The lighting assembly (5) includes a mounting plate (51) installed on one side of the lateral side of the chair frame (41). A rotary damper (52) is installed on the outer side wall of the mounting plate (51). A damper rocker arm (53) is installed on the rotary damper (52). A connecting plate (54) is installed on the damper rocker arm (53). A telescopic rod (55) is provided on the connecting plate (54). The bottom end of the telescopic rod (55) is installed on the side wall of the connecting plate (54) by a fastener. A gooseneck tube (56) is inserted into the top end of the telescopic rod (55). A lighting lamp (57) is installed at the top end of the gooseneck tube (56).

5. The portable field dental chair for individual soldiers as described in claim 4, characterized in that, The lighting assembly (5) also includes a battery box (58) and a lamp switch (59). The battery box (58) is installed on the lower surface of the chair frame (41), and the lamp switch (59) is installed on the switch base (6). The side wall of the switch base (6) is fixedly connected to the inner side of the transverse frame of the base (1). The battery box (58), the lamp switch (59) and the lighting lamp (57) are connected in series via a power cord.

6. The portable field dental chair for individual soldiers as described in claim 1, characterized in that, A leg support assembly (7) is provided below the seat frame (41). The leg support assembly (7) includes a pair of sleeves (71) and a pair of pull rods (72). The pair of sleeves (71) are installed on the lower surface of the seat frame (41). The rear ends of the pair of pull rods (72) are inserted into the sleeves (71) on the corresponding side. The front ends of the pair of pull rods (72) are connected by a pair of horizontal support rods (73). Leg pads (74) are installed on the pair of horizontal support rods (73). Fixing knobs (75) are respectively installed on the front ends of the pair of sleeves (71).

7. The portable field dental chair for individual soldiers as described in claim 1, characterized in that, The output end of the seat adjustment gas spring (31) is provided with a seat adjustment handle (33) for adjusting the extension and retraction of the seat adjustment gas spring (31), and the output end of the backrest adjustment gas spring (32) is provided with a backrest adjustment handle (34) for adjusting the extension and retraction of the backrest adjustment gas spring (32).

8. The portable field dental chair for individual soldiers as described in claim 1, characterized in that, The upper surface of the seat back (45) is provided with a headrest (48).

9. The portable field dental chair for individual soldiers as described in claim 1, characterized in that, A pair of directional wheels (17) are installed on the outer side wall of the rear frame of the base (1).

10. The portable field dental chair for individual soldiers as described in claim 1, characterized in that, The included angle between the first mounting base (11) and the second mounting base (12) is 90° to 120°.

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