Opening degree measuring scale

Abstract

The utility model belongs to the technical field of oral cavities, and particularly relates to an opening degree measuring scale, which solves the problems of poor practicability and low comfort in the prior art, and comprises a flaring mechanism, a measurement observation mechanism, a measuring handle and two connecting blocks, the two limiting rotating shafts are rotationally installed in the two connecting blocks correspondingly, one end of each limiting rotating shaft is fixedly connected with a rotating gear, the peripheral face of each limiting rotating shaft is fixedly sleeved with an inner groove rotating shaft, and the two limiting rotating shafts are rotationally installed in the two connecting blocks correspondingly; through the arrangement of structures such as a circular clamping rotating wheel and an interface block, when the device needs to be used, the circular clamping rotating wheel is rotated corresponding to patients with different mouth sizes, so that the interface block extends out to conform to the sizes of the mouths of the patients; and the use practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cavity, in particular to a mouth opening degree measuring ruler. Background Art

[0002] At present, the mouth opening measuring ruler is a tool specially used to evaluate the degree of mouth opening of patients. It is usually composed of a scale, a handle and other parts, and is used to accurately measure the distance between the upper and lower incisors to determine the size of the mouth opening.

[0003] The prior art has a multifunctional mouth opening measuring ruler with an authorization announcement number of CN217611063U. This patent provides a multifunctional mouth opening measuring ruler, which is mainly composed of a support rod and a measuring device. The measuring device is cleverly fixed on one side of the support rod and close to one end of the support rod to ensure the compactness and stability of the overall structure. It includes a main ruler, a sliding rod and a secondary ruler in sequence along the direction away from the support rod. The main ruler is firmly fixed on the support rod along the length direction of the support rod, and a sliding connection is achieved between the sliding rod and the main ruler. This design allows the sliding rod to slide freely on the main ruler, thereby adapting to the measurement requirements of different mouth openings. The secondary ruler is fixedly connected to the sliding rod and moves with the movement of the sliding rod to ensure the accuracy of the measurement results.

[0004] However, when the patent is used, it can only hold part of the teeth in the patient's mouth for measurement, which easily leads to angle deviation during measurement, resulting in poor practicality. When the patent is used, it is necessary to use external lighting equipment to illuminate the patient's mouth, and it belongs to unilateral extended measurement, which is not comfortable to use when measuring the patient's mouth. Utility Model Content

[0005] The utility model aims to provide a mouth opening measuring ruler, which solves the problems of poor practicability and low comfort.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mouth opening measuring ruler, comprising a flaring mechanism, a measuring observation mechanism, a measuring handle and two connecting blocks, the flaring mechanism comprising two limit rotating shafts, the two limit rotating shafts are rotatably installed in the inside of the two connecting blocks respectively, one end of the limit rotating shaft is fixedly connected to a rotating gear, an inner groove rotating shaft is fixedly sleeved on the outer circumference of the limit rotating shaft, one end of the inner groove rotating shaft is fixedly connected to a circular clamp rotating wheel, the interior of the connecting block is slidingly equipped with two circumferentially evenly distributed long racks, the two long racks are meshed with the rotating gear, and one end of the long rack is fixedly connected to an interface block.

[0007] Preferably, the measuring and observation mechanism includes a measuring handle, a rotating motor is installed inside the measuring handle, the output end of the rotating motor is connected to a coaxially arranged double-threaded screw via a coupling, two symmetrically arranged limit rods are fixedly connected inside the measuring handle, two symmetrically arranged connecting rods are threadedly sleeved on the outer circumference of the double-threaded screw, the connecting block is fixedly connected to the bottom of the connecting rod by screws, one end of the measuring handle is fixedly connected to a hand handle by screws, one end of the measuring handle is installed with a lighting lamp, and two control buttons are installed on one side of the hand handle.

[0008] Preferably, a limiting groove is provided inside the inner groove rotating shaft, and the limiting rotating shaft is slidably connected inside the limiting groove, and the limiting groove is used for limiting the inner groove rotating shaft.

[0009] Preferably, a clamping groove is provided inside the connection block, and the circular clamping wheel is slidably connected inside the clamping groove, and the clamping groove is used for limiting the position of the circular clamping wheel.

[0010] Preferably, two sliding grooves evenly distributed around the circumference are provided inside the connection block, and the two long racks are respectively slidably connected inside the two sliding grooves, and the sliding grooves are used for the sliding of the long racks.

[0011] Preferably, the measuring handle has two symmetrically arranged through grooves, the two connecting rods are slidably connected inside the two through grooves, the two connecting rods have two symmetrically arranged circular grooves, the two limiting rods pass through the four circular grooves respectively, and the through grooves are used for the sliding of the connecting rods.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model is provided with structures such as a circular card rotating wheel and an interface block. When it is needed, the circular card rotating wheel is rotated to extend the interface block to conform to the size of the patient's mouth, thereby increasing the practicality of the utility model.

[0014] 2. The utility model sets up structures such as a rotating motor and a lighting lamp. When measuring the mouth opening degree, the rotating motor is turned on, and the rotation of the rotating motor causes the connecting blocks to be synchronously expanded to both sides. At this time, the lighting lamp can be turned on to observe the situation inside the patient's mouth, thereby improving the comfort of using the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal transmission structure of the measuring handle of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the connection block of the utility model;

[0019] Figure 5 It is a schematic diagram of the overall structure of the connecting block of the utility model.

[0020] In the figure: 1, expansion mechanism; 11, connection block; 12, limit shaft; 121, rotating gear; 13, inner groove shaft; 131, round card rotating wheel; 14, long rack; 141, interface block;

[0021] 2. Measuring and observing mechanism; 21. Measuring handle; 22. Rotating motor; 221. Double-threaded screw; 222. Limiting rod; 223. Connecting rod; 23. Hand grip; 231. Illuminating lamp; 232. Control button. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , a mouth opening measuring ruler comprises a flaring mechanism 1, a measuring observation mechanism 2, a measuring handle 21 and two connecting blocks 11. The flaring mechanism 1 comprises two limiting rotating shafts 12, and the two limiting rotating shafts 12 are rotatably installed in the two connecting blocks 11 respectively, and one end of the limiting rotating shaft 12 is fixedly connected with a rotating gear 121. An inner groove rotating shaft 13 is fixedly sleeved on the outer circumference of the limiting rotating shaft 12, and one end of the inner groove rotating shaft 13 is fixedly connected with a circular card rotating wheel 131. The interior of the connecting block 11 is slidably equipped with two circumferentially evenly distributed long racks 14, and the two long racks 14 are meshed with the rotating gear 121. One end of the long rack 14 is fixedly connected with an interface block 141. Through the arrangement of the circular card rotating wheel 131, the interface block 141 and other structures, when it is needed to be used, the circular card rotating wheel 131 is rotated corresponding to patients with different mouth sizes to make the interface block 141 extend to meet the size of the patient's mouth, thereby increasing its practicality of use.

[0024] See also Figure 1-3The measuring and observing mechanism 2 comprises a measuring handle 21, a rotating motor 22 is installed inside the measuring handle 21, and the output end of the rotating motor 22 is connected to a coaxially arranged double-threaded screw 221 through a coupling, and two symmetrically arranged limit rods 222 are fixedly connected inside the measuring handle 21, and two symmetrically arranged connecting rods 223 are threadedly sleeved on the outer circumference of the double-threaded screw 221, and the connecting block 11 is fixedly connected to the bottom of the connecting rod 223 by screws, and one end of the measuring handle 21 is fixedly connected to a hand grip 23 by screws, and an illuminating lamp 231 is installed at one end of the measuring handle 21, and two control buttons 232 are installed on one side of the hand grip 23. Through the setting of the rotating motor 22, the illuminating lamp 231 and other structures, when measuring the degree of mouth opening, the rotating motor 22 is turned on, and the rotating motor 22 rotates to make the connecting block 11 synchronously expand to both sides, and at this time, the illuminating lamp 231 can be turned on to observe the situation inside the patient's oral cavity, thereby improving the comfort of using the equipment.

[0025] See also Figure 1-5 A limiting groove is provided inside the inner groove rotating shaft 13, the limiting rotating shaft 12 is slidably connected inside the limiting groove, a clamping groove is provided inside the connecting block 11, the circular clamping rotating wheel 131 is slidably connected inside the clamping groove, two circumferentially evenly distributed sliding grooves are provided inside the connecting block 11, and the two long racks 14 are respectively slidably connected inside the two sliding grooves, and the measuring handle 21 is provided with two symmetrically arranged through grooves, and the two connecting rods 223 are respectively slidably connected inside the two through grooves, and the two connecting rods 223 are each provided with two symmetrically arranged circular grooves, and the two limiting rods 222 pass through the insides of the four circular grooves respectively.

[0026] The specific implementation process of the utility model is as follows: before measuring the mouth opening, according to the size of the patient's mouth, the circular card rotating wheel 131 is rotated first, the circular card rotating wheel 131 rotates to drive the inner groove rotating shaft 13 to rotate, the inner groove rotating shaft 13 rotates to drive the limit rotating shaft 12 to rotate, the limit rotating shaft 12 rotates to drive the rotating gear 121 to rotate, the rotating gear 121 rotates to drive the two long racks 14 to extend outward, so that the interface block 141 extends outward to meet the size of the patient's mouth, when the interface block 141 reaches the size suitable for the patient's oral cavity, the circular card rotating wheel 131 is pressed to the inside of the clamping groove to limit the interface block 141, thereby increasing its practicality in use;

[0027] Furthermore, when measurement is required, the interface block 141 and the connecting block 11 are placed in the patient's mouth, and then the control button 232 is pressed to control the rotation of the rotating motor 22. The control button 232 is electrically connected to the electrical equipment inside the device. The rotation of the rotating motor 22 drives the double-threaded screw 221 to rotate. The rotation of the double-threaded screw 221 drives the two connecting rods 223 to slide to both sides. When the connecting rod 223 slides, the limit rod 222 limits it. When the interface block 141 and the connecting block 11 are unfolded, the connecting rod 223 cooperates with the measuring handle 21 to obtain the measurement data. During the measurement, the lighting 231 can be turned on by the control button 232 to observe the inside of the patient's mouth, thereby improving the comfort of using the equipment.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A mouth opening measuring ruler, comprising an expanding mechanism (1), a measuring observation mechanism (2), a measuring handle (21) and two connecting blocks (11), characterized in that: The flaring mechanism (1) comprises two limiting rotating shafts (12), the two limiting rotating shafts (12) are rotatably mounted inside the two connecting blocks (11) respectively, one end of the limiting rotating shaft (12) is fixedly connected with a rotating gear (121), an inner groove rotating shaft (13) is fixedly sleeved on the outer circumference of the limiting rotating shaft (12), one end of the inner groove rotating shaft (13) is fixedly connected with a circular card rotating wheel (131), the interior of the connecting block (11) is slidably equipped with two circumferentially evenly distributed long racks (14), the two long racks (14) are both meshed with the rotating gear (121), and one end of the long racks (14) is fixedly connected with an interface block (141).

2. A mouth opening measuring ruler according to claim 1, characterized in that: The measuring observation mechanism (2) comprises a measuring handle (21), a rotating motor (22) is installed inside the measuring handle (21), the output end of the rotating motor (22) is connected to a coaxially arranged double-threaded screw (221) through a coupling, two symmetrically arranged limit rods (222) are fixedly connected inside the measuring handle (21), two symmetrically arranged connecting rods (223) are threadedly sleeved on the outer circumference of the double-threaded screw (221), the connecting block (11) is fixedly connected to the bottom of the connecting rod (223) by screws, one end of the measuring handle (21) is fixedly connected to a hand grip (23) by screws, one end of the measuring handle (21) is installed with a lighting lamp (231), and one side of the hand grip (23) is installed with two control buttons (232).

3. The mouth opening measuring ruler according to claim 1, characterized in that: A limiting groove is provided inside the inner groove rotating shaft (13), and the limiting rotating shaft (12) is slidably connected inside the limiting groove.

4. The mouth opening measuring ruler according to claim 1, characterized in that: A clamping groove is provided inside the connection block (11), and the circular clamping rotating wheel (131) is slidably connected inside the clamping groove.

5. The mouth opening measuring ruler according to claim 1, characterized in that: The connection block (11) has two sliding grooves evenly distributed around the circumference, and the two long racks (14) are respectively slidably connected inside the two sliding grooves.

6. The mouth opening measuring ruler according to claim 2, characterized in that: The measuring handle (21) has two symmetrically arranged through slots formed therein, the two connecting rods (223) are respectively slidably connected inside the two through slots, the two connecting rods (223) have two symmetrically arranged circular slots formed therein, and the two limiting rods (222) pass through the insides of the four circular slots respectively.

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