CN107199533B - 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
- CN107199533B CN107199533B CN201710604747.1A CN201710604747A CN107199533B CN 107199533 B CN107199533 B CN 107199533B CN 201710604747 A CN201710604747 A CN 201710604747A CN 107199533 B CN107199533 B CN 107199533B
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- China
- Prior art keywords
- wrench
- lining
- working tip
- channel
- shell
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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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
-
- 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
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (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 wrench shell is provided with a through channel; the resistance elastic piece is a spring, and the spring is sleeved on the inner liner and is used for providing elastic force to force the inner liner 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 liner, a sleeve hole for penetrating the sleeve working tip is formed in the sleeve plate, and the center line of the sleeve hole is coincident with the axis of the passage of the wrench shell. The beneficial effects of the invention are as follows: the clamping component can be tightly matched with the step part of the working tip, the working tip can be taken and placed by using a wrench, and the whole process does not need hands to be in direct contact with the working tip, so that the cleaning and sanitation in the medical process are ensured, and the cross contamination is avoided; the working tip is screwed in place, so that the occurrence of overtightening and overtightening conditions is 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.
The invention discloses 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 wrench shell is provided with a through channel;
the resistance elastic piece is a spring sleeved on the lining and 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 for penetrating the sleeve working tip is formed in the sleeve plate, and the center line of the sleeve hole coincides with the axis of the passage of the wrench shell.
According to the specific embodiment of the invention, the torque wrench for loading and unloading the ultrasonic tooth cleaning equipment working tip is characterized in that a circle of convex edges are arranged on the inner surface of the wrench shell, the convex edges are arranged along the circumferential direction of the wrench shell, a circle of grooves are formed in the outer surface of the lining, the grooves are arranged along the circumferential direction of the lining, and the grooves are matched with the convex edges.
According to the specific embodiment of the invention, the limit wrench for loading and unloading the ultrasonic tooth cleaning equipment working tip is characterized in that the convex edge is provided with at least one positioning hole.
According to the limiting spanner for loading and unloading the ultrasonic tooth cleaning equipment working tip, the number of the positioning holes is four, and the four positioning holes are distributed on the convex edge.
According to the limiting spanner for loading and unloading the ultrasonic tooth cleaning equipment working tip, one end of the spring is bent upwards to form an inserting part, the inserting part is parallel to the axis of the spring, and the inserting part penetrates through one positioning hole.
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 working tip and made of metal, and the fastening piece 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 equipment 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 torque wrench for assembling and disassembling the working tip of the ultrasonic tooth cleaning device is characterized in that the wrench shell is made of plastic.
According to the specific embodiment of the invention, the limiting spanner for loading and unloading the ultrasonic tooth cleaning equipment working tip is made of plastic.
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 a compression spring, the lining drives the working tip to rotate and screw on the handle, the insertion part of the spring is driven by the wrench shell to rotate clockwise, the spring body is sleeved on the lining to be relatively static, then the spring body connected with the insertion part deforms against the coiling direction of the spring, when the reaction force generated by deformation is enough to offset the friction force between the convex edge and the groove, the wrench shell rotates relative to the lining, the lining and the wrench shell lose interaction force to form idle running, and the purpose of screwing the working tip according to a preset value is achieved. The spring has the advantages of simple structure, portability, convenient control of preset force, suitability for the working tip of the tooth cleaning equipment, convenient operation and capability of greatly saving 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 a schematic diagram of the structure of the present invention;
fig. 2 is a cross-sectional view of the present invention.
Reference numerals
1-a wrench housing; 2-lining; 3-flicking to yellow; 4-a fastener; 5-sleeve plate; 11-convex edges; 12-positioning holes; 21-a through hole; 51-trepanning; 6-clamping; 31-insert.
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.
As shown in fig. 1 and 2, the torque wrench for assembling and disassembling the working tip of the ultrasonic tooth cleaning device comprises a wrench shell 1, a lining 2, 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, a through hole is formed in the top of the lining, and the working tip can be sleeved on the through hole.
The resistance elastic piece is used for providing elastic force to force the lining to rotate around the axis of the channel relative to the wrench shell so as to enable the lining 2 to slip relative to the wrench shell 1 to form idle rotation; the resistance elastic piece is taken as a spring distance to describe, and the spring 3 is sleeved on the lining 2. One end of the spring 3 is bent upwards to form an insertion part 31, the insertion part 31 is parallel to the axis of the spring 3, and the insertion part 31 can be fixed with the wrench housing 3.
The fixing mode of the spring 3 and the spanner shell 1 is as follows: the inner surface of the wrench housing 1 is provided with a circle of protruding edges 11, and the protruding edges 11 are arranged along the circumferential direction of the wrench housing 1, namely, the inner ring of the wrench housing 1 protrudes inwards to form a narrow edge. The convex edge is provided with at least one positioning hole 12, and the axis of the positioning hole 12 is parallel to the axis of the passage of the wrench shell 1. The insertion portion 31 of the spring 3 passes through one of said positioning holes 12, i.e. the end of the spring is fixed with the wrench housing. The number of the positioning holes is preferably four, and the four positioning holes are distributed on the convex edge.
In order to match with the spanner shell, a circle of groove is arranged on the outer surface of the lining, the groove is arranged along the circumferential direction of the lining, and the groove is matched with the convex edge. The friction force and the elastic force of the spring form a pair of acting force and reacting force, when the friction force is larger than the elastic force of the spring, the wrench shell and the inner liner are synchronous, and the working tip can be screwed tightly; when the friction force is smaller than the spring force, the wrench shell rotates relative to the lining, the working tip is not stressed any more, and the wrench is screwed in place.
In the torque wrench structure of the present invention, the clamping assembly includes a socket plate 5 and a fastener 4. The sleeve plate 5 is arranged in the liner 2, a sleeve hole 51 for penetrating the working tip is formed in the sleeve plate 5, and the center line of the sleeve hole 51 coincides with the axis of the passage of the wrench shell 1. The shape of the sleeve hole 51 is matched with the shape of the tip base, and can be a slotted hole or a polygonal hole, and the size of the sleeve hole is slightly larger than that of the tip base, so that the tip can conveniently pass through.
The fastener 4 in the clamping assembly is used for clamping the working tip and is made of metal with certain elasticity. The fastener is stacked above the sleeve plate, and the working tip can be clamped by the fastener after passing through the sleeve hole.
The fastener is specifically shaped as a clip-shaped outer seat, and is internally connected with a circular ring to form an inner ring. The inner ring is tangent to the tail end of the outer seat. The inner ring is an external circle of the base part of the working tip. The inner ring and the outer seat are made of metal, the base of the working tip is extruded into the inner ring, and the elastic clamping of the material is received, and the elastic deformation restoring force coming from the outer seat is received, and the restoring force points to the circle center of the inner ring.
In order to facilitate the installation of the fastener, a through clamping channel 6 is arranged on the side wall of the lining along the horizontal direction, and the fastener 4 is arranged in the clamping channel 6 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 wrench is made of plastic, and the lining can be made of plastic.
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. The torque wrench for assembling and disassembling the ultrasonic tooth cleaning equipment working tip 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, and a through hole is formed in the top of the lining;
the resistance elastic piece is a spring sleeved on the lining and 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 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; the inner ring is an circumscribed circle of the 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 wrench comprises a wrench body, wherein the inner surface of the wrench body is provided with a circle of convex edges, the convex edges are arranged along the circumferential direction of the wrench body, the outer surface of the lining is provided with a circle of grooves, the grooves are arranged along the circumferential direction of the lining, and the grooves are matched with the convex edges;
at least one positioning hole is formed in the convex edge;
the number of the positioning holes is four, and the four positioning holes are distributed on the convex edge;
one end of the spring is bent upwards to form an insertion part, the insertion part is parallel to the axis of the spring, and the insertion part penetrates through one positioning hole;
the wrench shell is made of plastic;
the lining is made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604747.1A CN107199533B (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 |
|---|---|---|---|
| CN201710604747.1A CN107199533B (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 |
|---|---|
| CN107199533A CN107199533A (en) | 2017-09-26 |
| CN107199533B true CN107199533B (en) | 2023-05-16 |
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ID=59911367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710604747.1A Active CN107199533B (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 |
|---|---|
| CN (1) | CN107199533B (en) |
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 |
| CN207104786U (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 |
-
2017
- 2017-07-21 CN CN201710604747.1A patent/CN107199533B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107199533A (en) | 2017-09-26 |
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| PB01 | Publication | ||
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| 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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