Backrest anti-collision device of dental comprehensive treatment chair
By designing a backrest anti-collision device on the dental chair, and using components such as the upper side panel, swing frame, and electric push rod to achieve the circular movement and cushioning of the backrest, the problem of doctors' knees and legs bumping into each other during the operation is solved, improving the user experience and safety.
Patent Information
- Application Number
- CN202422910050.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The backrest of existing dental chairs is designed as a rigid component, which inevitably causes the doctor's knees and legs to come into contact with the backrest during the procedure, resulting in bumps and impacts on the user experience.
Design a backrest anti-collision device for a dental chair, using components such as an upper side panel, a swing frame, a support shaft, an electric push rod, and a tension spring to achieve circular motion and cushioning of the backrest, reducing the impact force.
The circular motion and cushioning mechanism of the backrest reduce the impact force between the doctor's knees and legs and the backrest, improving the user experience and safety.
Smart Images
Figure CN223654123U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to backrest anti -collision device technical field, more specifically, relate to a backrest anti -collision device of dental comprehensive treatment chair. BACKGROUND
[0002] With the rapid development of digitalization and intelligent technology, dental comprehensive treatment chair has become the indispensable core equipment of dental clinic, and dental comprehensive treatment chair integrates the cutting -edge oral scanning and imaging technology, which provides the unprecedented accurate diagnosis and treatment ability for dentists.
[0003] The seat back of the dental comprehensive treatment chair in the prior art is designed as a hard part, that is, the seat cushion and the backrest maintain a relative position, and in the actual operation process of the doctor, when the patient lies flat, the backrest will be lowered to a parallel position, at this time, the knees and legs of the doctor will inevitably contact the backrest, resulting in knocking, which brings poor use experience to the doctor, therefore, we propose a backrest anti -collision device of dental comprehensive treatment chair. UTILITY MODEL CONTENTS
[0004] Based on the above-mentioned technical problems of the dental comprehensive treatment chair in the prior art, the seat back of the treatment chair is designed as a hard part, that is, the seat cushion and the backrest maintain a relative position, and in the actual operation process of the doctor, when the patient lies flat, the backrest will be lowered to a parallel position, at this time, the knees and legs of the doctor will inevitably contact the backrest, resulting in knocking, which brings poor use experience to the doctor, therefore, we propose a backrest anti -collision device of dental comprehensive treatment chair.
[0005] The backrest anti -collision device of dental comprehensive treatment chair provided by the utility model, including two upper side plates, two upper side plates between being equipped with swing frame, two upper side plate outer wall all are connected with two support shafts, swing frame both sides are connected with two support shafts of rotation, swing frame outer wall is connected with the connecting arm of fixed connection, two upper side plate between fixed connection has the crossbeam, the crossbeam outer wall is connected with two baffle of fixed connection, two baffle outer wall all are equipped with the sliding slot, two baffle inside sleeve set up with second pin shaft, second pin shaft both ends respectively penetrate baffle and extend to its outside, two baffle outer wall all are equipped with the sliding slot, two baffle between being equipped with first pin shaft, first pin shaft both ends respectively penetrate sliding slot and extend to its outside, first pin shaft and second pin shaft both ends all are connected with the snap spring of card, first pin shaft and second pin shaft both ends all are equipped with the card slot, two baffle leans outside one side all is equipped with the tension spring, the tension spring both ends respectively with the card slot of joint cooperation, first electric push rod of rotation is connected with the first electric push rod output of fixed connection, the output of fixed connection has the pivot, pivot both ends all are connected with the connecting plate of rotation, two connecting plate respectively with swing frame fixed connection.
[0006] Preferably, a support seat is further included, a support plate is fixedly connected to the top of the support seat, a support is rotatably connected to the outer wall of the support plate, and the outer wall of the support is fixedly connected with the two upper side plates.
[0007] Preferably, a backrest is fixedly connected to the outer wall of the connecting arm, and a headrest is fixedly installed at the top of the backrest.
[0008] Preferably, a hinge seat is fixedly connected to the top of the support seat, a second electric push rod is rotatably connected to the inner wall of the hinge seat, and the output end of the second electric push rod is rotatably connected with the support.
[0009] Preferably, an extension shaft is fixedly connected to the inner wall of each of the two upper side plates, the two extension shafts are respectively extended to the outer side of the upper side plate, an axle sleeve is fixedly connected to the outer end of each of the two extension shafts, and a handrail is fixedly connected to the outer wall of each of the two axle sleeves.
[0010] Preferably, a first protective plate is fixedly installed on the outer wall of the support, a second protective plate is fixedly installed on the outer wall of the support seat, a third protective plate is fixedly installed on the outer side of each of the two upper side plates, the third protective plate is rotatably connected with the extension shaft, and a leg rest is installed on the outer wall of each of the two upper side plates.
[0011] The beneficial effects in the utility model are as follows:
[0012] 1. In the utility model, when the backrest is subjected to the impact force in the A direction, the backrest makes a circular motion with the support shaft as the center, so that the backrest is turned upward, the first electric push rod pulls the first pin shaft to slide along the inner wall of the sliding groove, at this time, the distance between the first pin shaft and the second pin shaft is increased, in this process, the tension spring is deformed, so that the backrest can move within a certain range, the impact intensity when contacting the backrest is reduced, and the use experience is improved.
[0013] 2. In the utility model, the second electric push rod is rotatably connected with the support through the hinge seat, so that the flexibility and stability of the backrest adjustment are further improved, and the height of the seat can be adjusted. ACCURATE DRAWINGS
[0014] Figure 1 It is a whole structure schematic view of the utility model;
[0015] Figure 2 It is an internal structure schematic view of the utility model;
[0016] Figure 3 It is an installation structure schematic view of the first electric push rod of the utility model;
[0017] Figure 4 It is an enlarged view of A in the utility model; Figure 2
[0018] Figure 5 The side surface structure schematic view of the utility model.
[0019] In the drawing: 1, support seat; 2, first guard plate; 3, upper side plate; 4, leg support; 5, extension shaft; 6, handrail; 7, swing frame; 8, support shaft; 9, connecting arm; 10, backrest; 11, connecting plate; 12, rotating shaft; 13, first electric push rod; 14, shaft sleeve; 15, cross bar; 16, baffle; 17, first pin shaft; 18, second pin shaft; 19, clamping groove; 20, clamping spring; 21, tension spring; 22, sliding slot; 23, support plate; 24, hinge seat; 25, second electric push rod; 26, support; 27, second guard plate; 28, third guard plate. DETAILED DESCRIPTION
[0020] Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of the utility model protection, in the utility model, unless there is explicit provision and limitation, the term "fixedly connected" should be understood broadly, for example, "fixedly connected" can be fixedly installed, can also be detachably connected, or be integrated; can be mechanically connected, can also be electrically connected; can be directly connected. For the ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.
[0021] As Figures 1-5As shown, a backrest anti-collision device of a dental comprehensive treatment chair comprises two upper side plates 3 and a support seat 1, a swing frame 7 is arranged between the two upper side plates 3, two support shafts 8 are fixedly connected to the outer walls of the two upper side plates 3, the swing frame 7 is rotatably connected to the two support shafts 8, a connecting arm 9 is fixedly connected to the outer wall of the swing frame 7, a cross rod 15 is fixedly connected between the two upper side plates 3, two baffles 16 are fixedly connected to the outer wall of the cross rod 15, sliding grooves 22 are formed in the outer walls of the two baffles 16, second pin shafts 18 are arranged in the two baffles 16, the two ends of the second pin shafts 18 respectively penetrate through the baffles 16 and extend to the outside of the baffles 16, sliding grooves 22 are formed in the outer walls of the two baffles 16, a first pin shaft 17 is arranged between the two baffles 16, the two ends of the first pin shaft 17 respectively penetrate through the sliding grooves 22 and extend to the outside of the sliding grooves 22, snap springs 20 are arranged at the two ends of the first pin shaft 17 and the second pin shaft 18, clamping grooves 19 are formed at the two ends of the first pin shaft 17 and the second pin shaft 18, tension springs 21 are arranged on the outer sides of the two baffles 16, the two ends of the tension springs 21 are clamped and matched with the clamping grooves 19, a first electric push rod 13 is rotatably connected to the outer wall of the first pin shaft 17, a rotating shaft 12 is fixedly connected to the output end of the first electric push rod 13, connecting plates 11 are rotatably connected to the two ends of the rotating shaft 12, the connecting plates 11 are composed of a plurality of sub-pieces and are welded, belong to a structural piece, the two connecting plates 11 are fixedly connected to the swing frame 7, and the connecting plates 11 are integrally formed with the swing frame 7, through the design of the upper side plates 3, the swing frame 7, the first electric push rod 13 and the connecting structure thereof, effective anti-collision and buffering of the backrest 10 in the adjustment process is realized, when the doctor is operating, even if the knee or leg accidentally contacts the backrest 10, the buffering effect of the tension spring 21 can also reduce the knocking force and improve the use experience;
[0022] As shown in the figure, Figure 2 The support seat 1 is fixedly connected with a support plate 23 at the top, the support plate 23 is rotatably connected with a support frame 26, and the support frame 26 is fixedly connected with the two upper side plates 3.
[0023] As shown in the figure, Figure 2 The connecting arm 9 is fixedly connected with a backrest 10, and the backrest 10 is fixedly installed with a headrest at the top.
[0024] As shown in the figure, Figure 2 The support seat 1 is fixedly connected with a hinge seat 24 at the top, the hinge seat 24 is rotatably connected with a second electric push rod 25, the output end of the second electric push rod 25 is rotatably connected with the support frame 26, and the second electric push rod 25 is rotatably connected with the support frame 26 through the hinge seat 24, which further enhances the flexibility and stability of the backrest 10 adjustment and can adjust the height of the seat.
[0025] As shown in the figure, Figure 2 and Figure 3As shown, the inner wall of each of the two upper side plates 3 is fixedly connected with an extension shaft 5, the end of each of the two extension shafts 5 extends to the outer side of the upper side plate 3, the outer end of each of the two extension shafts 5 is fixedly connected with a shaft sleeve 14, and the outer wall of each of the two shaft sleeves 14 is fixedly connected with a handrail 6.
[0026] As shown in the drawings, Figure 1 The outer wall of the support 26 is fixedly installed with a first guard plate 2, the outer wall of the support seat 1 is fixedly installed with a second guard plate 27, and the outer side of each of the upper side plates 3 is fixedly installed with a third guard plate 28, the third guard plate 28 is rotationally connected with the extension shaft 5, and the outer wall of each of the two upper side plates 3 is installed with a leg rest 4.
[0027] Working principle: when the backrest 10 is subjected to the impact force in the A direction, the backrest 10 makes a circular motion with the support shaft 8 as the center, so that the backrest 10 is flipped upward, the first electric push rod 13 pulls the first pin shaft 17 to slide along the inner wall of the sliding groove 22, at this time, the distance between the first pin shaft 17 and the second pin shaft 18 becomes larger, in this process, the tension spring 21 is deformed, so that the backrest 10 can move within a certain range, reducing the knocking force when contacting the backrest 10, when the knees and legs of the doctor or the assistant are away from the backrest 10, the backrest 10 is returned to the static state under the elastic force of the tension spring 21.
[0028] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A backrest anti-collision device for a dental treatment chair, comprising two upper side panels (3), characterized in that: Two upper side plates (3) are provided with a swing frame (7), the outer walls of the two upper side plates (3) are fixedly connected with two support shafts (8), the two sides of the swing frame (7) are rotatably connected with the two support shafts (8), the outer wall of the swing frame (7) is fixedly connected with a connecting arm (9), the two upper side plates (3) are fixedly connected with a crossbar (15), the outer wall of the crossbar (15) is fixedly connected with two baffles (16), the outer walls of the two baffles (16) are both provided with a sliding groove (22), the interiors of the two baffles (16) are both provided with a second pin shaft (18), the two ends of the second pin shaft (18) respectively penetrate through the baffle (16) and extend to the outside of the baffle (16), the first pin shaft (17) is arranged between the two baffles (16), the two ends of the first pin shaft (17) respectively penetrate through the sliding groove (22) and extend to the outside of the sliding groove (22), the two ends of the first pin shaft (17) and the second pin shaft (18) are both clamped with a clamping spring (20), the two ends of the first pin shaft (17) and the second pin shaft (18) are both provided with a clamping groove (19), the outer sides of the two baffles (16) are both provided with a tension spring (21), the two ends of the tension spring (21) are respectively clamped and matched with the clamping groove (19), the outer wall of the first pin shaft (17) is rotatably connected with a first electric push rod (13), the output end of the first electric push rod (13) is fixedly connected with a rotating shaft (12), the two ends of the rotating shaft (12) are both rotatably connected with a connecting plate (11), the two connecting plates (11) are respectively fixedly connected with the swing frame (7).
2. The backrest anti-collision device of a dental treatment chair according to claim 1, characterized in that: A support base (1) is further included, the top of the support base (1) is fixedly connected with a support plate (23), the outer wall of the support plate (23) is rotatably connected with a support frame (26), and the outer wall of the support frame (26) is fixedly connected with the two upper side plates (3).
3. The backrest anti-collision device of a dental treatment chair according to claim 2, characterized in that: The outer wall of the connecting arm (9) is fixedly connected with a backrest (10), and the top of the backrest (10) is fixedly installed with a headrest.
4. The backrest anti-collision device of a dental treatment chair according to claim 3, characterized in that: The top of the support base (1) is fixedly connected with a hinge base (24), and the inner wall of the hinge base (24) is rotatably connected with a second electric push rod (25), and the output end of the second electric push rod (25) is rotatably connected with the support frame (26).
5. The backrest anti-collision device of a dental treatment chair according to claim 4, characterized in that: The inner walls of the two upper side plates (3) are both fixedly connected with an extension shaft (5), the two extension shafts (5) are respectively extended to the outside of the upper side plate (3), the outer ends of the two extension shafts (5) are both fixedly connected with a shaft sleeve (14), and the outer walls of the two shaft sleeves (14) are both fixedly connected with a handrail (6).
6. The backrest anti-collision device of a dental treatment chair according to claim 5, characterized in that: The outer wall of the support frame (26) is fixedly installed with a first protective plate (2), the outer wall of the support base (1) is fixedly installed with a second protective plate (27), the outer sides of the upper side plates (3) are both fixedly installed with a third protective plate (28), and the third protective plate (28) is rotatably connected with the extension shaft (5).
7. The backrest anti-collision device of a dental treatment chair according to claim 6, characterized in that: The outer walls of the two upper side plates (3) are installed with leg supports (4).