A dental chair seat cushion disassembly and assembly structure

Abstract

This utility model relates to the field of dental chair technology, and more particularly to a dental chair seat cushion assembly / disassembly structure, including a mounting base and a seat cushion body. The rear part of the bottom surface of the seat cushion body is provided with several hooks, and the front part of the bottom surface of the seat cushion body is provided with several longitudinal latches and several transverse latches. The openings of the hooks face the front end of the seat cushion body, and the openings of the longitudinal and transverse latches face the lower part of the seat cushion body. The hooks, longitudinal latches, and transverse latches are all positioned on the mounting base. The seat cushion body is positioned on the mounting base by the hooks, longitudinal latches, and transverse latches. The hooks determine the rear end position of the seat cushion body, the longitudinal latches position the transverse position of the seat cushion body, and the transverse latches position the front end of the seat cushion body, thereby reliably fixing the seat cushion body to the mounting base and facilitating the installation and removal of the seat cushion body.

Description

Technical Field

[0001] This utility model relates to the field of dental chair technology, and in particular to a dental chair seat cushion disassembly and assembly structure. Background Technology

[0002] A dental chair, also known as a dental chair, is an essential medical device for dental surgery. It includes a backrest, seat, dental light, instrument tray, and water supply system. Dental chairs are relatively large, especially the seat, which typically includes leg support. The length of the seat makes them inconvenient for packaging, transportation, disassembly, maintenance, and cleaning. Existing technologies often design detachable seats, such as the dental chair with a rotomolded cushion disclosed in CN210301629U. In this design, the chair frame is mounted on a base, and the rotomolded cushion is detachably mounted on the frame. The rotomolded cushion includes a backrest and a seat cushion, both with integrally formed connecting mechanisms on the back of the backrest and seat cushion. These connecting mechanisms include clips and screw holes. However, during installation, the seat cushion is positioned with the frame below, making it difficult to accurately position the clips, screw holes, and frame relative to each other, resulting in assembly difficulties. Furthermore, the relative fixation of the seat cushion and frame relies on screws, which also makes disassembly inconvenient. Utility Model Content

[0003] The purpose of this utility model is to propose a disassembly and assembly structure for dental chair cushions, which features quick and easy disassembly and assembly.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A dental chair seat cushion disassembly and assembly structure includes a mounting base and a seat cushion body. The rear part of the bottom surface of the seat cushion body is provided with several hooks, and the front part of the bottom surface of the seat cushion body is provided with several longitudinal buckles and several transverse buckles.

[0006] The opening of the hook faces the front end of the seat cushion body, and the openings of the longitudinal buckle and the transverse buckle face the bottom of the seat cushion body;

[0007] The seat cushion body includes a bottom shell and a seat cover. The edge of the seat cover covers the outside of the bottom shell, and the hook, the longitudinal buckle and the transverse buckle are all fixed to the bottom shell.

[0008] Furthermore, the mounting base includes a main mounting frame, an armrest mounting frame, and a U-shaped mounting frame. The armrest mounting frame is fixed to the rear part of the top surface of the main mounting frame, and the U-shaped mounting frame is fixed to the front part of the main mounting frame.

[0009] The hook is positioned at the bottom of the handrail mounting bracket, and both the longitudinal buckle and the transverse buckle are engaged with the U-shaped mounting bracket.

[0010] Furthermore, the handrail mounting frame is L-shaped, the end of the horizontal plate of the handrail mounting frame is fixed to the main mounting frame, the horizontal plate of the handrail mounting frame is provided with a limit frame, and the rear end of the main mounting frame is provided with a limit groove corresponding to the limit frame;

[0011] The horizontal plate of the handrail mounting bracket, the limiting bracket, and the main mounting bracket together form a clearance hole, and the hook enters the clearance hole and hooks onto the horizontal plate of the handrail mounting bracket.

[0012] Furthermore, the top of the main mounting frame is provided with several horizontal support bars, the bottom of the seat body is provided with a positioning groove, the horizontal support bars are located in the positioning groove, and the length of the horizontal support bars corresponds to the width of the positioning groove.

[0013] Furthermore, a swingable backrest is connected between the two armrest mounting brackets, and an arc-shaped support plate is connected to the bottom end of the backrest;

[0014] The bottom of the arc-shaped support plate is slidably engaged with the main mounting frame.

[0015] Furthermore, the bottom of the main mounting bracket is connected to the dental chair base via a drive arm, and the two ends of the drive arm are rotatably connected to the main mounting bracket and the dental chair base, respectively.

[0016] Furthermore, the seat cover has thickened portions on its rear and front sides, the thickened portions protruding from the bottom surface of the seat cover, and the top surface of the seat cover is a smooth surface; the bottom shell has a receiving groove corresponding to the thickened portions.

[0017] Both the seat cover and the thickened portion are filled with cushioning material.

[0018] Furthermore, the bottom shell has a vertical perimeter, and the edge of the seat cover has a vertical cover edge, which surrounds the outer wall of the vertical perimeter.

[0019] The bottom wall of the seat cover fits into the top wall of the bottom shell, and the vertical rim has a groove between the bottom plate of the bottom shell.

[0020] The technical solution provided by this utility model can include the following beneficial effects:

[0021] The seat cushion body is positioned on the mounting base via hooks, longitudinal latches, and transverse latches. The hooks determine the rear position of the seat cushion body, the longitudinal latches position its lateral position, and the transverse latches position its front end, thus reliably fixing the seat cushion body to the mounting base and facilitating its installation and removal. This invention's dental chair seat cushion assembly and disassembly structure features convenient assembly and disassembly, and reliable seat cushion installation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the disassembly and assembly structure of a dental chair cushion according to an embodiment of the present invention;

[0023] Figure 2 This is a structural diagram of the seat cushion body;

[0024] Figure 3 This is a structural diagram of the mounting base;

[0025] Figure 4 This is a schematic diagram showing the connection between the hook and the mounting base;

[0026] Figure 5 This is a schematic diagram of the bottom surface of the seat cover;

[0027] Figure 6 This is a schematic diagram of the top surface of the bottom shell;

[0028] The components include: mounting base 1, main mounting bracket 11, armrest mounting bracket 12, U-shaped mounting bracket 13, limiting bracket 14, clearance hole 15, and transverse support strip 16; seat cushion body 2, bottom shell 21, vertical edging 211, groove 212, seat cushion cover 22, vertical cover edge 221, thickened part 222, positioning groove 23, hook 3, longitudinal buckle 4, transverse buckle 5, backrest 6, arc-shaped support plate 61, drive arm 7, and chair base 8. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] The following is combined Figures 1 to 6 This describes a dental chair cushion disassembly and assembly structure according to an embodiment of the present utility model.

[0031] The dental chair seat cushion disassembly and assembly structure of this embodiment includes a mounting base 1 and a seat cushion body 2. The rear part of the bottom surface of the seat cushion body 2 is provided with several hooks 3, and the front part of the bottom surface of the seat cushion body 2 is provided with several longitudinal buckles 4 and several transverse buckles 5.

[0032] The opening of the hook 3 faces the front end of the cushion body 2, and the openings of the longitudinal buckle 4 and the transverse buckle 5 face the bottom of the cushion body 2.

[0033] The hook 3, the longitudinal buckle 4, and the transverse buckle 5 are all positioned on the mounting base 1.

[0034] In this embodiment, the seat cushion body 2 is positioned on the mounting base 1 by hooks 3, longitudinal latches 4, and transverse latches 5. Hooks 3 determine the rear end position of the seat cushion body 2, longitudinal latches 4 position the transverse position of the seat cushion body 2, and transverse latches 5 position the front end of the seat cushion body 2, thus reliably fixing the seat cushion body 2 to the mounting base 1 and facilitating its installation and removal. Specifically, when assembling the seat cushion body 2, first place the seat cushion body 2 on the mounting base 1, then pull the seat cushion body 2 forward so that the hooks 3 hook onto the mounting base 1. At this time, the relative positions of the seat cushion body 2 and the mounting base 1 are positioned by the multiple hooks 3. Finally, press down on the front part of the seat cushion body 2 so that all the longitudinal latches 4 and transverse latches 5 are engaged with the mounting base 1. When removing the seat cushion body 2, first lift the front part of the seat cushion body 2 so that all the longitudinal latches 4 and transverse latches 5 are disengaged from the mounting base 1. Then push the seat cushion body 2 backward so that the hooks 3 are disengaged from the mounting base 1, allowing the seat cushion body 2 to be lifted and removed from the mounting base 1. The above-mentioned disassembly and assembly process of the seat cushion body 2 is fast and convenient.

[0035] Understandably, by setting multiple hooks 3, multiple longitudinal buckles 4, and multiple transverse buckles 5, the reliability of fixing the seat cushion body 2 to the mounting base 1 can be further improved. In a preferred embodiment, two hooks 3 are symmetrically arranged on both sides of the rear part of the seat cushion body 2, three longitudinal buckles 4 are respectively arranged on both sides of the front part, and a transverse buckle 5 is arranged in the center of the front end.

[0036] Furthermore, the seat cushion body 2 includes a base shell 21 and a seat cushion cover 22. The edge of the seat cushion cover 22 covers the outside of the base shell 21, and the hooks 3, the longitudinal buckles 4, and the transverse buckles 5 are all fixed to the base shell 21. The seat cushion cover 22 directly contacts the patient and can be made of plastic or a three-layer structure consisting of a surface layer, a sponge layer, and a support layer. Specifically, the hooks 3, the longitudinal buckles 4, and the transverse buckles 5 are all fixed to the base shell 21 with screws.

[0037] In one embodiment of the present invention, the mounting base 1 includes a main mounting frame 11, a handrail mounting frame 12 and a U-shaped mounting frame 13. The handrail mounting frame 12 is fixed to the rear part of the top surface of the main mounting frame 11, and the U-shaped mounting frame 13 is fixed to the front part of the main mounting frame 11.

[0038] The hook 3 is positioned at the bottom of the handrail mounting bracket 12, and the longitudinal buckle 4 and the transverse buckle 5 are both engaged with the U-shaped mounting bracket 13.

[0039] The mounting base 1, consisting of the main mounting bracket 11, the handrail mounting bracket 12, and the U-shaped mounting bracket 13, has a simple structure and is lightweight. Furthermore, the handrail mounting bracket 12 not only supports the handrail but also positions the hooks 3, further simplifying the structure of the mounting base 1. Preferably, the U-shaped mounting bracket 13 is a U-shaped round tube, further reducing the weight of the mounting base 1.

[0040] Furthermore, the handrail mounting bracket 12 is L-shaped, the end of the horizontal plate of the handrail mounting bracket 12 is fixed to the main mounting bracket 11, the horizontal plate of the handrail mounting bracket 12 is provided with a limit bracket 14, and the rear end of the main mounting bracket 11 is provided with a limit groove corresponding to the limit bracket 14.

[0041] The horizontal plate of the handrail mounting bracket 12, the limiting bracket 14 and the main mounting bracket 11 together form a clearance hole 15, and the hook 3 enters the clearance hole 15 and hooks onto the horizontal plate of the handrail mounting bracket 12.

[0042] By defining the shape of the armrest mounting bracket 12 and the position of the limiting bracket 14, the structure of the armrest mounting bracket 12 and the positioning structure of the hook 3 are simplified. The placement of the clearance hole 15 allows the hook 3 to be positioned during the installation and removal of the seat cushion body 2. Specifically, when installing the seat cushion body 2, the hook 3 is inserted into the clearance hole 15, and then the seat cushion body 2 is pulled forward to define the relative position between the seat cushion body 2 and the mounting base 1. Pressing down on the front of the seat cushion body 2 completes the installation. When removing the seat cushion body 2, the front of the seat cushion body 2 is pulled up, and then the seat cushion body 2 is pulled backward. The hook 3 retracts into the clearance hole 15. The clearance hole 15 prevents excessive displacement of the seat cushion body 2 when pulled backward, ensuring the safety of the removal process. Specifically, the limiting bracket 14 is L-shaped, making the clearance hole 15 square.

[0043] To further improve the ease of assembly and disassembly of the seat cushion body 2, the top of the main mounting bracket 11 is provided with several horizontal support bars 16, and the bottom of the seat cushion body 2 is provided with a positioning groove 23. The horizontal support bars 16 are located in the positioning groove 23, and the length of the horizontal support bars 16 corresponds to the width of the positioning groove 23.

[0044] During the disassembly and assembly of the seat cushion body 2, the transverse support bar 16 and the positioning groove 23 form a sliding fit, making it easy for the seat cushion body 2 to be positioned on the mounting base 1, and the backward and forward movement of the seat cushion body 2 is more stable, thus improving the speed of disassembly and assembly of the seat cushion body 2.

[0045] In one embodiment of this utility model, a swingable backrest 6 is connected between the two armrest mounting frames 12, and an arc-shaped support plate 61 is connected to the bottom end of the backrest 6; the bottom of the arc-shaped support plate 61 is slidably engaged with the main mounting frame 11. Through the swingable connection between the backrest 6 and the armrest mounting frame 12, and the slidable engagement between the bottom of the arc-shaped support plate 61 and the main mounting frame 11, the angle of the backrest 6 can be reliably adjusted. Adjusting the angle of the backrest 6 allows for adjustment of the patient's posture, facilitating surgical procedures on the teeth inside the mouth.

[0046] Furthermore, the bottom of the main mounting bracket 11 is connected to the dental chair base 8 via a drive arm 7, and both ends of the drive arm 7 are rotatably connected to the main mounting bracket and the dental chair base 8, respectively. The height of the mounting base 1 can be adjusted by adjusting the tilt angle of the drive arm 7. Specifically, there are two drive arms 7, one of which is connected to a drive motor or drive rod.

[0047] In one embodiment of this utility model, thickened portions 222 are respectively provided on the rear and front sides of the seat cushion cover. The thickened portions 222 protrude from the bottom surface of the seat cushion cover, and the top surface of the seat cushion cover is a smooth surface. The bottom shell is provided with receiving grooves corresponding to the thickened portions 222. Both the seat cushion cover and the thickened portions 222 are filled with cushioning material. The thickened portions 222 are used to increase the deformation of the seat cushion cover. The thickened portions 222 are provided at the buttock support position, thigh support position, and calf support position of the seat cushion cover to improve the patient's comfort.

[0048] Furthermore, the bottom shell has a vertical rim 211, and the edge of the seat cover has a vertical cover edge 221, which surrounds the outer wall of the vertical rim 211. The bottom wall of the seat cover fits against the top wall of the bottom shell, and the vertical rim 211 has a groove 212 between itself and the bottom plate of the bottom shell. The groove 212 allows the vertical rim 211 to have a certain degree of deformability, facilitating its tilting towards the bottom plate. This allows the seat cover to be easily assembled with the bottom shell via the vertical cover edge. The seat cover and bottom shell are fitted with an interference fit, simplifying the assembly of the seat body and making the seat cover easy to disassemble, clean, and replace. For example, the bottom shell is formed by stamping from a metal sheet.

[0049] Other components and operations of the dental chair cushion disassembly and assembly structure according to the present invention are known to those skilled in the art and will not be described in detail here.

[0050] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0051] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dental chair seat cushion disassembly and assembly structure, characterized in that, It includes a mounting base and a seat cushion body. The rear part of the bottom surface of the seat cushion body is provided with several hooks, and the front part of the bottom surface of the seat cushion body is provided with several longitudinal buckles and several transverse buckles. The opening of the hook faces the front end of the seat cushion body, and the openings of the longitudinal buckle and the transverse buckle face the bottom of the seat cushion body; The seat cushion body includes a bottom shell and a seat cover. The edge of the seat cover covers the outside of the bottom shell, and the hook, the longitudinal buckle and the transverse buckle are all fixed to the bottom shell.

2. The dental chair seat cushion disassembly and assembly structure according to claim 1, characterized in that, The mounting base includes a main mounting frame, a handrail mounting frame, and a U-shaped mounting frame. The handrail mounting frame is fixed to the rear part of the top surface of the main mounting frame, and the U-shaped mounting frame is fixed to the front part of the main mounting frame. The hook is positioned at the bottom of the handrail mounting bracket, and both the longitudinal buckle and the transverse buckle are engaged with the U-shaped mounting bracket.

3. The dental chair seat cushion disassembly and assembly structure according to claim 2, characterized in that, The handrail mounting frame is L-shaped, and the end of the horizontal plate of the handrail mounting frame is fixed to the main mounting frame. The horizontal plate of the handrail mounting frame is provided with a limit frame, and the rear end of the main mounting frame is provided with a limit groove corresponding to the limit frame. The horizontal plate of the handrail mounting bracket, the limiting bracket, and the main mounting bracket together form a clearance hole, and the hook enters the clearance hole and hooks onto the horizontal plate of the handrail mounting bracket.

4. The dental chair seat cushion disassembly and assembly structure according to claim 3, characterized in that, The top of the main mounting frame is provided with several horizontal support bars, and the bottom of the seat cushion body is provided with a positioning groove. The horizontal support bars are located in the positioning groove, and the length of the horizontal support bars corresponds to the width of the positioning groove.

5. The dental chair seat cushion disassembly and assembly structure according to claim 2, characterized in that, A swingable backrest is connected between the two armrest mounting brackets, and an arc-shaped support plate is connected to the bottom end of the backrest; The bottom of the arc-shaped support plate is slidably engaged with the main mounting frame.

6. The dental chair seat cushion disassembly and assembly structure according to claim 5, characterized in that, The bottom of the main mounting bracket is connected to the dental chair base via a drive arm, and the two ends of the drive arm are rotatably connected to the main mounting bracket and the dental chair base, respectively.

7. The dental chair seat cushion disassembly and assembly structure according to any one of claims 1-6, characterized in that, The seat cover has thickened portions on its rear and front sides, which protrude from the bottom surface of the seat cover. The top surface of the seat cover is a smooth surface. The bottom shell has a receiving groove corresponding to the thickened portions. Both the seat cover and the thickened portion are filled with cushioning material.

8. The dental chair seat cushion disassembly and assembly structure according to claim 7, characterized in that, The bottom shell has a vertical rim, and the edge of the seat cover has a vertical cover edge, which surrounds the outer wall of the vertical rim. The bottom wall of the seat cover fits into the top wall of the bottom shell, and the vertical rim has a groove between the bottom plate of the bottom shell.

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