CN107199529B - A torque wrench for loading and unload ultrasonic tooth cleaning device work point - Google Patents
A torque wrench for loading and unload ultrasonic tooth cleaning device work point Download PDFInfo
- Publication number
- CN107199529B CN107199529B CN201710604746.7A CN201710604746A CN107199529B CN 107199529 B CN107199529 B CN 107199529B CN 201710604746 A CN201710604746 A CN 201710604746A CN 107199529 B CN107199529 B CN 107199529B
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- lining
- wrench
- channel
- working tip
- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a torque wrench for assembling and disassembling a working tip of ultrasonic tooth cleaning equipment, which comprises a wrench shell, a lining, a resistance elastic piece and a clamping assembly, wherein the resistance elastic piece is used for providing elastic force to force the lining to rotate around the axis of a channel relative to the wrench shell; the clamping assembly comprises a sleeve plate, the sleeve plate is arranged in the lining, a sleeve hole is formed in the sleeve plate and used for clamping the working tip, and the axis of the sleeve hole coincides with the axis of the channel. The beneficial effects of the invention are as follows: the tool tip can be tightly matched with the step part of the tool tip, the tool tip can be taken and placed by using a wrench, and the whole process does not need to be in direct contact with the tool tip by hands, so that the medical process is clean and sanitary, and cross contamination is avoided; when the wrench rotates the working tip to a certain extent, the resistance elastic piece reaches the maximum, so that the lining slides relative to the wrench to idle, and the conditions of overtightening and overtightening of the working tip are avoided.
Description
Technical Field
The invention belongs to the field of medical appliances, and particularly relates to a torque wrench for assembling and disassembling a working tip of ultrasonic tooth cleaning equipment.
Background
The oral cavity is the first passage of food into human body, and the quality of teeth is closely related to the whole body health on the surface of various foreign researches. The data show that the current situation of oral health problems in China is worry, about eight adults face the invasion of odontopathy, and attention is needed. The third data of "national oral health epidemiological investigation" shows that 80% -97% of adults in our country have periodontal problems of different degrees, and the proportion of gingival bleeding is as high as 77.3% in the population between 35 and 44 years old.
Some advanced hospitals use ultrasonic prophy sets when cleaning teeth for patients. The structure of the ultrasonic tooth cleaner is divided into three parts: a scaler, scaler handle, scaler tip (needle); the tooth cleaner working tip is arranged on the handle of the tooth cleaner, and when the working tip is assembled and disassembled, the bottom of the working tip can be clamped by pliers for assembly and disassembly, and a special spanner can be used.
When the tooth cleaning needle head is assembled and disassembled, if common pliers are used, the needle head step is easily scratched and abraded. The common spanner can also cause the needle to be screwed too tightly or too loose because of poor control, the too tight can influence the disassembly and assembly of the needle, and the too loose can influence the work or hurt the tooth surface.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a torque wrench for assembling and disassembling a working tip of ultrasonic tooth cleaning equipment, which has the characteristics of simple structure, convenience in use and the like.
The invention aims to provide a torque wrench for assembling and disassembling a working tip of ultrasonic tooth cleaning equipment.
According to an embodiment of the invention, a torque wrench for loading and unloading a tip of an ultrasonic dental unit comprises a wrench housing having a through passage and a liner mounted in the passage, the liner having a through hole therein, a resistance elastic member and a clamping assembly, wherein
The resistance elastic piece is arranged on the outer surface of the lining and is used for providing elastic force to force the lining to rotate around the axis of the channel relative to the wrench shell;
the clamping assembly comprises a sleeve plate, the sleeve plate is arranged in the lining, a sleeve hole is formed in the sleeve plate and used for clamping the working tip, and the axis of the sleeve hole coincides with the axis of the channel.
According to the limiting spanner for loading and unloading the ultrasonic tooth cleaning equipment working tip, the clamping assembly further comprises a fastening piece which is used for clamping the metal material of the working tip, is arranged inside the lining and is stacked above the sleeve plate.
According to the specific embodiment of the invention, the limiting spanner for loading and unloading the working tip of the ultrasonic tooth cleaning equipment comprises a clip-shaped outer seat and an inner ring, wherein the inner ring is arranged in the outer seat and is tangent with the tail end of the outer seat, and the inner ring is a circumcircle of the base part of the working tip.
According to the specific embodiment of the invention, the limiting spanner for loading and unloading the working tip of the ultrasonic tooth cleaning device is characterized in that a through clamping channel is formed in the side wall of the lining along the horizontal direction, and the fastening piece is arranged in the clamping channel and is in clearance fit with the clamping channel.
According to the specific embodiment of the invention, the limiting spanner for loading and unloading the ultrasonic tooth cleaning equipment working tip is characterized in that a plurality of stop edges are convexly arranged on the inner wall of the spanner shell, the axial directions of the channels of the stop edges are uniformly distributed, and each stop edge is axially arranged in the channel.
According to the specific embodiment of the invention, the vertical section of each stop edge of the torque wrench for loading and unloading the working tip of the ultrasonic tooth cleaning device is right trapezoid.
According to the specific embodiment of the invention, the resistance elastic piece is an elastic piece, the elastic piece is arranged on the outer wall of the lining, one end part of the elastic piece is connected with the lining, and the end part extends along the circumferential direction of the lining to form an elastic piece body with a free end.
According to the limiting spanner for loading and unloading the ultrasonic tooth cleaning equipment working tip, the free end head is provided with an inclined plane, and the high point of the inclined plane protrudes out of the elastic sheet body.
According to the specific embodiment of the invention, the limiting spanner for loading and unloading the working tip of the ultrasonic tooth cleaning device is characterized in that the lining is provided with the elastic sheet groove, the elastic sheet is arranged in the elastic sheet groove, the end part of the elastic sheet is connected with the elastic sheet groove, and the other three surfaces of the elastic sheet are suspended in the air.
According to the limiting spanner for loading and unloading the ultrasonic tooth cleaning equipment working tip, the height of the inclined plane is larger than the depth of the elastic sheet groove.
The beneficial effects of the invention are as follows:
1. the clamping assembly is adopted, can be tightly matched with the step part of the working tip, and the working tip can be taken and placed by using a wrench, so that hands are not required to be in direct contact with the working tip in the whole process, the clean and sanitary process in the medical process is ensured, and the cross contamination is avoided; when the elasticity of the resistance elastic piece reaches the maximum, the torque wrench screws the working tip to a preset position, and when the wrench shell is screwed continuously, the resistance elastic piece enables the lining to slide relative to the wrench shell and idle, so that the working tip cannot be forced any more, the working tip is screwed in place, and the conditions of overtightening and over loosening of the working tip are avoided.
2. The fastener is adopted to further clamp the working tip, so that the falling-off of the working tip is prevented; the fastener is in the shape of an annular inner ring, a clip-shaped base is arranged outside the fastener, the size of a platform of the working tip is slightly larger than that of the inner ring, the platform is pressed into the inner ring by radial pressure of the inner ring, and the inner ring generates certain elastic deformation to allow the working piece to be pressed into the inner ring, so that the working tip is clamped. After the working tip is detached, the base gives a certain retractive force to the inner ring, so that the inner ring is restored, and the inner ring is prevented from being fatigued.
3. The resistance elastic piece is of an elastic piece structure, when the working tip is screwed, the lining drives the circumferential rotation of the working tip ring spanner shell, the elastic piece is propped against the inner wall of the spanner to generate radial elastic force, the acting force reaches a preset value, the elastic piece is sprung up, the lining and the spanner shell lose interaction force to form idle running, and therefore the purpose of screwing the working tip according to the preset value is achieved. The elastic sheet has a simple structure, is light and convenient, is suitable for the working tip of the tooth cleaning equipment, is convenient to operate, and can greatly save the operation time of doctors.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a torque wrench of the present invention;
FIG. 2 is a cross-sectional view of a torque wrench of the present invention;
FIG. 3 is a top view of the torque wrench of the present invention;
fig. 4 is a schematic view of the internal structure of the present invention.
Reference numeral 1-wrench housing; 2-lining; 3-shrapnel; 4-a fastener; 5-sleeve plate; 11-stop edges; 21-a through hole; 41-inner ring; 42-an outer seat; 51-trepanning; 6-clamping the channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The invention relates to a torque wrench for assembling and disassembling a working tip of ultrasonic tooth cleaning equipment, which is shown in figures 1-3 and comprises a wrench shell 1 and a lining 2, wherein the wrench shell 1 is provided with a through channel, the lining 2 is arranged in the channel, a through hole 21 is formed in the lining, and the working tip can be sleeved on the through hole.
The torque wrench of the present invention further comprises a resistance spring and a clamping assembly, wherein the resistance spring is configured to provide a spring force to urge the liner 2 to rotate about the axis of the passage relative to the wrench housing 1, thereby causing the liner 2 to slip relative to the wrench housing 1 to form a free-wheeling motion. The elastic resistance piece is exemplified by a spring piece 3, the spring piece 3 is arranged on the outer wall of the inner liner 2, one end of the spring piece 3 is connected with the inner liner 2, one end of the spring piece 3 extends along the circumferential direction of the inner liner 2 to form a spring piece body, and the spring piece body is provided with a free end.
The lining 2 is provided with a spring slot, the spring 3 is arranged in the spring slot, the spring and the lining are integrally formed, namely the lining is slotted, a spring is formed by extending one end face of the slot along the circumferential direction of the lining 2, one end of the spring is connected with the spring slot, and the other three faces are suspended, so that the spring 3 is ensured to have enough radial deformation space in the spring slot.
The free end head is provided with an inclined plane, the high point of the inclined plane protrudes out of the elastic sheet body, and the height of the inclined plane is larger than the depth of the elastic sheet groove.
In order to match with the spring plate 3, a plurality of stop ribs 11 are convexly arranged on the inner wall of the wrench shell 1, the stop ribs 11 are uniformly distributed around the axial direction of the channel, and each stop rib 11 is arranged along the axial direction of the channel.
The vertical section of each stop rib 11 is right trapezoid, namely, each stop rib is provided with a sloping surface, the included angle between the sloping surface and the wrench shell 1 is an acute angle, and the axis of the channel is parallel to the sloping surface.
In the actual use process, the inclined plane of the free end of the elastic sheet 3 is abutted against the inclined plane of the stop rib, when the working tip is screwed, the elastic sheet is pressed, the free end of the elastic sheet climbs along the inclined plane until the pressure is maximum when the apex of the inclined plane is reached, the working tip is continuously screwed, the elastic sheet passes over the stop rib, and no resistance is born any more.
As shown in fig. 4, the torque wrench of the present invention further includes a clamping assembly. The clamping assembly comprises a sleeve plate 5, the sleeve plate is arranged in the liner 2, a sleeve hole 51 is formed in the sleeve plate 5 and used for clamping a working tip, and the center line of the sleeve hole 51 coincides with the axis of the channel.
For further fastening and anti-slip purposes, the clamping assembly further comprises a fastener 4 for clamping the tip, wherein the fastener 4 is arranged inside the lining 2 and is stacked above the sleeve plate 5.
The fastener 4 comprises a clip-shaped outer seat 42 and an annular inner ring 41, the inner ring 41 is arranged inside the outer seat 42, the free end of the outer seat 42 is tangent to the inner ring, and the diameter of the inner ring 41 is smaller than the width of the trepanning.
The fastener is made of metal, so that the inner ring and the outer seat have elastic deformation force.
The outer surface of the side wall of the liner 2 is provided with a through clamping channel 6 along the horizontal direction, and the fastener is arranged in the clamping channel and is in clearance fit with the clamping channel, so that a certain space is provided for elastic deformation of the inner ring and the outer seat.
The invention adopts the clamping component, can be tightly matched with the step part of the working tip, can take and place the working tip by utilizing the wrench, does not need hands to be in direct contact with the working tip in the whole process, ensures clean and sanitary in the medical process, avoids cross contamination and realizes aseptic operation.
When the elasticity of the resistance elastic piece reaches the maximum, the torque wrench screws the working tip to a preset position, and then the wrench shell is screwed continuously to enable the lining to slide relative to the wrench shell, idle running occurs, so that the working tip cannot be forced any more, the working tip is screwed in place, and the conditions of overtightening and over loosening of the working tip are avoided.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. A torque wrench for assembling and disassembling a working tip of ultrasonic tooth cleaning equipment is characterized by comprising a wrench shell, a lining, a resistance elastic piece and a clamping assembly, wherein the wrench shell is provided with a through channel, the lining is arranged in the channel, the top of the lining is provided with a through hole,
the resistance elastic piece is arranged on the outer surface of the inner lining and used for providing elastic force to force the inner lining to rotate around the axis of the channel relative to the wrench shell;
the clamping assembly comprises a sleeve plate, the sleeve plate is arranged in the lining, a sleeve hole for penetrating the working tip is formed in the sleeve plate, and the center line of the sleeve hole is overlapped with the axis of the channel of the wrench shell;
the clamping assembly further comprises a fastener used for clamping the metal material of the working tip, and the fastener is stacked above the sleeve plate;
the fastener comprises a clip-shaped outer seat and an inner ring, wherein the inner ring is arranged in the outer seat and tangent to the tail end of the outer seat, and the inner ring is a circumscribed circle of a base part of the working tip;
a through clamping channel is formed in the side wall of the lining along the horizontal direction, and the fastener is arranged in the clamping channel and is in clearance fit with the clamping channel;
the inner wall of the wrench shell is provided with a plurality of stop ribs protruding longitudinally, and the stop ribs are uniformly distributed around the axis of the channel;
the vertical section of each stop rib is right trapezoid;
the resistance elastic piece is a spring piece, and one end of the spring piece is connected with the lining;
the lining is provided with an elastic sheet groove, the elastic sheet is arranged in the elastic sheet groove, and one end of the elastic sheet is connected with the elastic sheet groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604746.7A CN107199529B (en) | 2017-07-21 | 2017-07-21 | A torque wrench for loading and unload ultrasonic tooth cleaning device work point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604746.7A CN107199529B (en) | 2017-07-21 | 2017-07-21 | A torque wrench for loading and unload ultrasonic tooth cleaning device work point |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107199529A CN107199529A (en) | 2017-09-26 |
| CN107199529B true CN107199529B (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710604746.7A Active CN107199529B (en) | 2017-07-21 | 2017-07-21 | A torque wrench for loading and unload ultrasonic tooth cleaning device work point |
Country Status (1)
| Country | Link |
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| CN (1) | CN107199529B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486805A (en) * | 2017-09-30 | 2017-12-19 | 嘉善瑞森汽配有限公司 | A kind of detectable formula torque spanner |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003033373A (en) * | 2001-07-19 | 2003-02-04 | Micron:Kk | Wrench with torque limiter which is capable of adjusting setting torque |
| US7159494B2 (en) * | 2004-12-14 | 2007-01-09 | Hu-Friedy Mfg. Co., Inc. | Torque limiting wrench for ultrasonic scaler tip insertion |
| CN201573148U (en) * | 2009-12-28 | 2010-09-08 | 徐步光 | Torque wrench |
| CN202313794U (en) * | 2011-11-05 | 2012-07-11 | 魏少华 | Torque wrench for work tip of handle of scaler |
| CN103522235B (en) * | 2013-10-11 | 2015-04-08 | 桂林市啄木鸟医疗器械有限公司 | Torque wrench used for assembling and disassembling working tips of ultrasonic medical equipment |
| CN207104783U (en) * | 2017-07-21 | 2018-03-16 | 南宁市微牙机电科技有限公司 | For loading and unloading the torque wrench of ultrasonic scaling equipment operation tip |
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2017
- 2017-07-21 CN CN201710604746.7A patent/CN107199529B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107199529A (en) | 2017-09-26 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Floor 11, Building 3, No. 70 Keyuan Avenue, Nanning City, Guangxi Zhuang Autonomous Region, 530012 Applicant after: NANNING WEIYA TECHNOLOGY Co.,Ltd. Address before: 530007, 4th Floor, North Building, Building 1, Zhengxin Science and Technology Park, No. 2 Gaoxin 7th Road, Nanning City, Guangxi Zhuang Autonomous Region Applicant before: NANNING WEIYA ELECTRICAL AND MECHANICAL TECHNOLOGY CO.,LTD. |
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