Instrument tray of dental treatment chair

Abstract

The utility model relates to the technical field of medical instruments, in particular to an instrument tray of a dental treatment chair, which comprises a rotary hanger and two connecting arms, and at least one end of the rotary hanger is rotatably connected with the connecting arms through a rotary limiting mechanism; the rotary limiting mechanism comprises a mounting shaft, a limiting piece and a telescopic limiting piece, the mounting shaft is fixed to the connecting arm, the limiting piece is fixed to the end of the rotary hanging frame, and the mounting shaft is rotationally matched with the rotary hanging frame; the telescopic limiting piece is installed on the installation shaft, the limiting piece is provided with a plurality of limiting parts, and the end of the telescopic limiting piece can abut against one limiting part. A doctor can directly hold the rotary hanging frame to rotate the rotary hanging frame, angle adjustment of the rotary hanging frame can be achieved only by implementing one action, and operation is easy and fast. Due to the arrangement of the rotating gears of the rotating hanging frame, the rotating hanging frame is positioned reliably and accurately, and a doctor can rotate the rotating hanging frame to a proper angle more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an instrument tray of a dental treatment chair. Background Art

[0002] The dental treatment chair is equipped with an instrument tray for preventing dental surgical materials. The instrument tray is usually provided with a hanger for placing dental mobile phones and other instruments. In order to facilitate doctors to take and place surgical instruments, the hanger is rotatable. CN219230122U discloses a rotatable hanger box. Pull the hanger box 2 to make the connecting part 4 slide in the mounting part 3 in the direction away from the hanger rod 1. The second limiter 11 is separated from the first limiter 10. At this time, the hanger box 2 is adjusted to rotate so that the hanging wire hole 12 is tilted to a suitable position, and then the tension on the hanger box 2 is released. At this time, the elastic member 9 rebounds, so that the connecting part 4 shrinks into the mounting part 3, and the second limiter 11 contacts the first limiter 10 to ensure the stability of the hanger box 2 installed on the hanger rod 1. When the doctor rotates the hanger, three actions are required: pulling the hanger box, rotating the hanger box, and releasing the hanger box. The operation is not convenient enough, and there is no gear setting, so it is difficult to reliably and accurately position the hanger box angle. Utility Model Content

[0003] The utility model aims to provide an instrument tray for a dental treatment chair, which has the characteristics of convenient operation and reliable and accurate positioning of a rotating hanger.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] An instrument tray of a dental treatment chair comprises a rotating bracket and two connecting arms, wherein at least one end of the rotating bracket is rotatably connected to the connecting arm via a rotating limiting mechanism;

[0006] The rotation limiting mechanism comprises a mounting shaft, a limiting piece and a telescopic limiting piece, wherein the mounting shaft is fixed to the connecting arm, the limiting piece is fixed to the end of the rotating bracket, and the mounting shaft is rotationally matched with the rotating bracket;

[0007] The telescopic limiting member is installed on the installation shaft, the limiting piece is provided with a plurality of limiting parts, and the end of the telescopic limiting member can abut against one of the limiting parts.

[0008] In some embodiments, the telescopic limiter includes a limit bead and a spring, and the limit bead is located at one end of the spring;

[0009] The mounting shaft is provided with a mounting hole for accommodating the telescopic limiting member, the spring is located in the mounting hole, the limiting sheet abuts against the limiting bead and presses the limiting bead part into the mounting hole.

[0010] In some embodiments, a plurality of the telescopic limit members are arranged on the mounting shaft in a centrally symmetrical manner;

[0011] A plurality of the limiting portions are arranged in an arc shape on the limiting piece.

[0012] In some embodiments, the limiting portion is a circular hole or a circular groove, and the diameter of the circular hole or the circular groove is smaller than the diameter of the limiting bead.

[0013] In some embodiments, a plurality of locking grooves are formed on the edge of the limiting plate, and the connecting arm is provided with locking screws that can be inserted into the locking grooves.

[0014] In some embodiments, the mounting shaft includes a fixed block and a connecting shaft connected to each other, the connecting shaft passes through the limiting plate and the rotating bracket, and the fixed block is limited to the connecting arm.

[0015] In some embodiments, the fixing block is cylindrical, a peripheral surface of the fixing block is provided with an annular groove, and a side portion of the fixing block is provided with a notch;

[0016] The connecting arm is provided with a limiting ring and a limiting protrusion, the limiting ring is located in the ring groove, and the limiting protrusion corresponds to the position of the notch.

[0017] In some embodiments, the instrument tray of the dental treatment chair includes a front cover, an upper cover and a lower cover, wherein the front cover is buckled on the edge of the lower cover, the upper cover is buckled on the top of the lower cover, and the front cover, the upper cover and the lower cover constitute the instrument tray body, and the instrument tray body includes the two connecting arms.

[0018] The technical solution provided by the utility model may have the following beneficial effects:

[0019] The utility model is based on the setting of the rotation limit mechanism. The doctor can rotate the rotating bracket by directly holding the rotating bracket. The angle of the rotating bracket can be adjusted by only one action. The operation is simple and fast. When the rotating bracket is rotated, the end of the telescopic limit part moves from one limit part to another limit part, that is, the gear position of the rotating bracket changes. The positioning of the rotating bracket is reliable and accurate, and the doctor can more easily rotate the rotating bracket to a suitable angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an instrument tray of a dental treatment chair according to one embodiment of the utility model;

[0021] Figure 2 yes Figure 1 An exploded schematic diagram of a rotating bracket and a rotating limit mechanism of an instrument tray of a dental treatment chair is shown;

[0022] Figure 3is a schematic diagram of a rotation limiting mechanism;

[0023] Figure 4 is a schematic diagram of an axial cross section of a rotation limiting mechanism;

[0024] Figure 5 It is a schematic diagram of the cooperation between the mounting shaft and the connecting arm;

[0025] Among them, there are a rotating bracket 1, a connecting arm 2, a limiting ring 21, a locking screw 22, a rotating limiting mechanism 3, a mounting shaft 31, a mounting hole 311, a fixing block 312, a ring groove 313, a notch 314, a connecting shaft 315, a limiting piece 32, a limiting part 321, a locking groove 322, a telescopic limiting piece 33, a limiting bead 331, a spring 332, a front cover 4, an upper cover 5, and a lower cover 6. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] Combine the following Figures 1 to 5 , describing an instrument tray of a dental treatment chair according to an embodiment of the utility model.

[0028] An instrument tray of a dental treatment chair comprises a rotating bracket 1 and two connecting arms 2, wherein at least one end of the rotating bracket 1 is rotatably connected to the connecting arms 2 via a rotating limiting mechanism 3;

[0029] The rotation limiting mechanism 3 includes a mounting shaft 31, a limiting piece 32 and a telescopic limiting member 33, wherein the mounting shaft 31 is fixed to the connecting arm 2, the limiting piece 32 is fixed to the end of the rotating bracket 1, and the mounting shaft 31 is rotationally matched with the rotating bracket 1;

[0030] The telescopic limiting member 33 is installed on the installation shaft 31 . The limiting piece 32 is provided with a plurality of limiting portions 321 . An end of the telescopic limiting member 33 can abut against one of the limiting portions 321 .

[0031] Based on the setting of the rotation limit mechanism 3, the doctor can rotate the rotating rack 1 by directly holding the rotating rack 1, and the angle adjustment of the rotating rack 1 can be realized by only one action, which is simple and quick to operate. When the rotating rack 1 is rotated, the end of the telescopic limit part 321 moves from one limit part 321 to another limit part 321, that is, the gear position of the rotating rack 1 changes, the rotating rack 1 is reliably and accurately positioned, and the doctor can more easily rotate the rotating rack 1 to a suitable angle.

[0032] Specifically, by setting a plurality of limit parts 321, the telescopic limit part 33 cooperates with different limit parts 321, so that the rotating rack 1 has a plurality of positioning gears, and the doctor can operate the rotating rack 1 conveniently, which can greatly improve the doctor's work efficiency and use experience. At least one end of the rotating rack 1 is rotatably connected to the connecting arm 2 through the rotating limit mechanism 3, so that the rotation of the rotating rack 1 has gears, and the rotating limit mechanism 3 has a single point structure, so that the instrument tray can be assembled quickly. In one embodiment, one end of the rotating rack 1 is rotatably connected to the connecting arm 2 through the rotating limit mechanism 3, and the other end is directly rotatably connected to the connecting arm 2. The doctor operates the rotating rack 1 close to the end of the rotating limit mechanism 3 to rotate the rotating rack 1. In another embodiment, the two ends of the rotating rack 1 are rotatably connected to the connecting arm 2 through the rotating limit mechanism 3, and the doctor operates the middle part of the rotating rack 1 to rotate it.

[0033] In one embodiment of the present utility model, the telescopic limiter 33 includes a limit bead 331 and a spring 332, and the limit bead 331 is located at one end of the spring 332;

[0034] The mounting shaft 31 is provided with a mounting hole 311 for accommodating the telescopic limiting member 33 . The spring 332 is located in the mounting hole 311 . The limiting sheet 32 ​​abuts against the limiting bead and partially presses the limiting bead 331 into the mounting hole 311 .

[0035] The telescopic limiter 33 composed of the spring 332 and the limiter bead 331 has a simple structure, and the limiter bead 331 is a ball, which makes the gear change process of the rotating hanger 1 smoother. The mounting hole 311 of the mounting shaft 31 is used to accommodate the spring 332 and the limiter bead 331, simplifying the mounting structure of the telescopic limiter 33. When the rotation limit mechanism 3 is assembled with the instrument tray, the limiter sheet 32 ​​abuts against the limiter bead and partially presses the limiter bead 331 into the mounting hole 311, thereby realizing the positioning of the spring 332 and the limiter bead 331.

[0036] Preferably, the plurality of telescopic limit members 33 are centrally symmetrically arranged on the mounting shaft 31; the plurality of limit portions 321 are arranged in an arc shape on the limit plate 32. Thus, the centrally symmetrical plurality of telescopic limit members 33 stabilize the rotation of the rotating rack 1 and prevent the rotating rack 1 from shaking during the rotation process. Each telescopic limit member 33 corresponds to a plurality of limit portions 321, which can further improve the rotation stability and positioning stability of the rotating rack 1. Exemplarily, the two telescopic limit members 33 are located on the same diameter line of the mounting shaft 31, and the limit plate 32 has two groups of limit portions 321.

[0037] Further preferably, the limiting portion 321 is a circular hole or a circular groove, and the diameter of the circular hole or the circular groove is smaller than the diameter of the limiting bead 331, so as to ensure reliable positioning of the limiting bead 331. The limiting portion 321 is more preferably a circular hole, and a limiting sheet 32 ​​with a smaller thickness can realize positioning of the limiting bead 331, making the structure of the instrument tray compact.

[0038] In one embodiment of the utility model, the edge of the limit plate 32 is provided with a plurality of locking grooves 322, and the connecting arm 2 is provided with a locking screw that can be inserted into the locking groove 322. In a specific application scenario, the locking screw extends into the locking groove 322 to position the limit plate 32, thereby locking the rotating bracket 1. The number of locking grooves 322 is preferably the same as the number of corresponding limit portions 321 of each telescopic limit member 33, so that the rotating bracket 1 can be locked when it is in each gear state. Specifically, the connecting arm 2 is provided with a threaded through hole for the locking screw to be screwed in.

[0039] In one embodiment of the utility model, the installation shaft 31 includes a fixed block 312 and a connecting shaft 315 connected to each other, the connecting shaft 315 passes through the limiting piece 32 and the rotating hanger 1, and the fixed block 312 is limited to the connecting arm 2. The installation shaft 31 is used to position the telescopic limiting member 33 and the end support positioning of the rotating hanger 1 to realize the rotation of the rotating hanger 1. The installation shaft 31 has a simple structure, simplifies the structure of the instrument tray and makes the rotation limiting mechanism 3 compact.

[0040] Preferably, the fixing block 312 is cylindrical, the circumference of the fixing block 312 is provided with an annular groove 313, and the side of the fixing block 312 is provided with a notch 314; the connecting arm 2 is provided with a limiting ring 21 and a limiting protrusion 22, the limiting ring 21 is located in the annular groove 313, and the limiting protrusion 22 corresponds to the position of the notch 314. The annular groove 313 of the fixing block 312 cooperates with the limiting ring 21 of the connecting arm 2 to axially position the installation shaft 31, and the notch 314 of the fixing block 312 cooperates with the limiting protrusion 22 of the connecting arm 2 to radially position the installation shaft 31, so that the installation shaft 31 is firmly positioned on the connecting arm 2 and the positioning structure is simple.

[0041] In one embodiment of the utility model, the instrument tray of the dental treatment chair comprises a front cover 4, an upper cover 5 and a lower cover 6, wherein the front cover 4 is buckled on the edge of the lower cover 6, the upper cover 5 is buckled on the top of the lower cover 6, and the front cover 4, the upper cover 5 and the lower cover 6 constitute the main body of the instrument tray, and the main body of the instrument tray comprises two connecting arms 2. The instrument tray has a simple structure and is easy to assemble, and the surface gaps of the instrument tray are few, and it is easy to clean and disinfect.

[0042] Other structures and operations of the instrument tray of a dental treatment chair according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0043] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0044] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An instrument tray for a dental treatment chair, characterized in that: It comprises a rotating bracket and two connecting arms, wherein at least one end of the rotating bracket is rotatably connected to the connecting arm through a rotating limiting mechanism; The rotation limiting mechanism comprises a mounting shaft, a limiting piece and a telescopic limiting piece, wherein the mounting shaft is fixed to the connecting arm, the limiting piece is fixed to the end of the rotating bracket, and the mounting shaft is rotationally matched with the rotating bracket; The telescopic limiting member is installed on the installation shaft, the limiting piece is provided with a plurality of limiting parts, and the end of the telescopic limiting member can abut against one of the limiting parts.

2. The instrument tray of the dental chair according to claim 1, characterized in that: The telescopic limiter comprises a limit bead and a spring, wherein the limit bead is located at one end of the spring; The mounting shaft is provided with a mounting hole for accommodating the telescopic limiting member, the spring is located in the mounting hole, the limiting sheet abuts against the limiting bead and presses the limiting bead part into the mounting hole.

3. The instrument tray of the dental treatment chair according to claim 2, characterized in that: The plurality of telescopic limiters are arranged on the installation shaft in a centrally symmetrical manner; A plurality of the limiting portions are arranged in an arc shape on the limiting piece.

4. The instrument tray of a dental treatment chair according to claim 2 or 3, characterized in that: The limiting portion is a circular hole or a circular groove, and the diameter of the circular hole or the circular groove is smaller than the diameter of the limiting bead.

5. The instrument tray of the dental chair according to claim 4, characterized in that: A plurality of locking grooves are formed on the edge of the limiting piece, and a locking screw which can be inserted into the locking groove is provided on the connecting arm.

6. The instrument tray of the dental treatment chair according to claim 4, characterized in that: The installation shaft comprises a fixed block and a connecting shaft connected to each other. The connecting shaft passes through the limiting piece and the rotating bracket. The fixed block is limited to the connecting arm.

7. The instrument tray of the dental chair according to claim 6, characterized in that: The fixing block is cylindrical, a ring groove is arranged on the circumference of the fixing block, and a notch is arranged on the side of the fixing block; The connecting arm is provided with a limiting ring and a limiting protrusion, the limiting ring is located in the ring groove, and the limiting protrusion corresponds to the position of the notch.

8. The instrument tray of a dental treatment chair according to claim 4, characterized in that: It comprises a front cover, an upper cover and a lower cover, wherein the front cover is buckled on the edge of the lower cover, the upper cover is buckled on the top of the lower cover, the front cover, the upper cover and the lower cover constitute the instrument tray body, and the instrument tray body comprises the two connecting arms.

Images