CN109079693B - Double-end ring spanner group convenient for adjusting torque - Google Patents
Double-end ring spanner group convenient for adjusting torque Download PDFInfo
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- CN109079693B CN109079693B CN201811000614.4A CN201811000614A CN109079693B CN 109079693 B CN109079693 B CN 109079693B CN 201811000614 A CN201811000614 A CN 201811000614A CN 109079693 B CN109079693 B CN 109079693B
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Classifications
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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
- B25B13/00—Spanners; Wrenches
- B25B13/56—Spanner sets
-
- 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
-
- 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
- B25B23/16—Handles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a double-end annular wrench group convenient for adjusting torque, which comprises a first wrench head, a left wrench body, a right wrench body and a second wrench head, wherein the left wrench body is arranged on the left side of the right wrench body, the first wrench head is fixedly welded at one end of the left wrench body far away from the right wrench body, the second wrench head is fixedly welded at one end of the right wrench body far away from the left wrench body, the double-end annular wrench group in the device is composed of the left wrench body and the right wrench body and can be disassembled and assembled, when a fixing pin at the left end of the right wrench body is controlled to be installed and clamped in different pin holes in the left wrench body, the length of the whole wrench body can be changed, so that the aim of conveniently changing the torque is achieved, when a high-strength anti-falling screw is slidably connected in a limiting sliding groove at one end of an adjusting torque groove, an adjusting torque rod cannot slide out from the adjusting torque groove, and slipping or other phenomena cannot occur, the safety is high.
Description
Technical Field
The invention relates to the technical field of hardware accessories, in particular to a double-end annular wrench group convenient for torque adjustment.
Background
The double-end ring spanner set is a tool for dismounting nuts and screws, any one of two ends of the double-end ring spanner set can be used for dismounting when dismounting, if one end is damaged, the other end can be continuously used, the dismounting is very convenient, but the following defects still exist in the practical use of the double-end ring spanner set:
1. the existing double-end annular wrench group is inconvenient to adjust the torque according to actual requirements, so that the purpose of convenient use is achieved, the torque can be adjusted only by connecting screw rods at two ends of the double-end annular wrench group in a matching manner, and the double-end annular wrench group is very troublesome to use;
2. when the double-end ring spanner both ends supporting connection has the screw rod, drop easily when pulling double-end ring spanner group, sometimes because too big appearance of strength collides with hard thing and spanner, lead to human injury, perhaps appear more serious condition, the safety in utilization is lower.
Disclosure of Invention
The present invention is directed to a double-ended ring wrench set with torque adjustment, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a double-end annular wrench group convenient for adjusting torque comprises a first wrench, a left wrench body, a right wrench body and a second wrench, wherein the left wrench body is arranged on the left side of the right wrench body, the first wrench body is fixedly welded at one end of the left wrench body, which is far away from the right wrench body, the second wrench body is fixedly welded at one end of the right wrench body, which is far away from the left wrench body, the left end of the left wrench body is provided with a left end holding area, one end of the right wrench body, which is far away from the second wrench body, is fixedly welded with a middle control connecting section, and one end of the middle control connecting section, which is far away from the right wrench body, is fixedly welded with an adjusting torque rod;
a limiting sliding groove is formed in the middle of the upper surface of the torque adjusting rod, a rubber pad is fixedly welded at one end, away from the middle control connecting section, of the torque adjusting rod, a telescopic groove is further formed in the torque adjusting rod, the two ends of the telescopic groove are respectively communicated with a left through groove and a right through groove, two groups of connecting rods which are symmetrical in front and back are movably arranged in the telescopic groove, and a fixing pin and a pressing block are fixedly welded at the end parts of the left end and the right end of each connecting rod respectively;
the inside adjusting torque groove that is equipped with of right-hand member of turning body on the left side, all be equipped with the pinhole on the both ends inner wall around the adjusting torque groove, the right-hand member upper surface in adjusting torque groove is equipped with high strength anticreep bolt, high strength anticreep bolt is the vertical upper surface of turning body on the left side that runs through and establishes in the inside in adjusting torque groove, and high strength anticreep bolt establishes the distance in adjusting torque groove inner wall one end unanimously with the degree of depth of spacing sliding tray, and high strength anticreep bolt and the left side are turned and are connected through screw-thread fit between the body.
Preferably, the length in left end hand holding area is ten centimetres, and the surface in left end hand holding area is equipped with anti-skidding line, the length of pulling the body on the right is ten centimetres, and the surface of pulling the body on the right is equipped with anti-skidding line, anti-skidding line is the hexagon structure, and anti-skidding line is equipped with the multiunit, and multiunit anti-skidding line is equidistance equidimension range.
Preferably, the width and the height of the middle control connecting section are respectively smaller than those of the right spanner body, and the length of the middle control connecting section is two centimeters.
Preferably, the length of the adjusting torque rod is fifteen centimeters, and the width and the height of the adjusting torque rod are respectively smaller than those of the middle control connecting section.
Preferably, the limiting sliding groove is of a rectangular groove body-shaped structure, the trend of the limiting sliding groove is consistent with that of the adjusting torque rod, and the width of the limiting sliding groove is five centimeters at zero point.
Preferably, the left side through groove and the right side through groove are the same in height, the left side through groove and the right side through groove are higher than the telescopic groove in height, and the left side through groove and the right side through groove respectively penetrate through the front side and the rear side of the left end of the adjusting torque rod and the front end and the rear end of the middle control connecting section.
Preferably, the connecting rods are of rectangular strip plate structures, and the two groups of connecting rods which are symmetrical front and back are fixedly connected through springs.
Preferably, the width and the height of fixed pin, pressure piece are greater than the width and the height of connecting rod respectively, and fixed pin, pressure piece all are perpendicular to the connecting rod setting, and fixed pin salient in the front and back both ends zero point five millimeters setting that runs through the groove on the left side, press the surperficial parallel and level mutually of piece and middle control linkage segment.
Preferably, the length of adjusting the torque slot equals the length of adjusting the torque rod plus the length of rubber pad, adjusts the torque slot and adjusts the torque rod phase-match setting, the right-hand member of adjusting the torque slot runs through the right side surface setting of the body of turning on the left side.
Preferably, the pin holes are arranged in a rectangular groove body-shaped structure, a plurality of groups of pin holes are arranged at equal intervals of one centimeter, and the pin holes and one end of the fixing pin penetrating through the left through groove are arranged correspondingly.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:
1. the double-head ring spanner group in the device consists of a left spanner body and a right spanner body, and can be disassembled and assembled, when the fixing pin at the left end of the right spanner body is controlled to be installed and clamped in different pin holes in the left spanner body, the length of the whole spanner body can be changed, and therefore the purpose of conveniently changing the torque is achieved;
2. when the high-strength anti-slip screw is slidably connected into the limiting sliding groove at one end of the adjusting torque groove, the adjusting torque rod cannot slip out of the adjusting torque groove, and slip or other phenomena cannot occur when the adjusting torque is used, so that the safety is high;
3. the fixing pin is moved out of the pin hole by pressing the pressing blocks on the front side and the rear side, the purpose of movably adjusting the torque rod is achieved, the pressing blocks are loosened when the fixing pin is aligned with the pin hole in a proper position, the fixing pin can be automatically clamped in the corresponding pin hole through the restoring force effect of the spring, the purpose of fixing the left wrench body and the right wrench body is achieved, the use and the control are convenient, the surface of the pressing block is flush with the surface of the middle control connecting section, the phenomenon that the left wrench body and the right wrench body are easy to fall off due to the fact that the surface of the pressing block is not easily touched by hands;
4. the body is pulled on both sides removable, controls the difference of both sides spanner, and the convenience is carried out the overlap joint according to actual demand and is used, and the practicality is strong, and convenient to use is fit for promoting.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a vertical cross-sectional view of the left wrench body according to the present invention;
FIG. 3 is a transverse cross-sectional view of the left wrench body according to the present invention;
FIG. 4 is a vertical cross-sectional view of the right wrench body according to the present invention;
FIG. 5 is a cross-sectional view of the right wrench body according to the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
In the figure: first spanner 1, anti-skidding line 2, the body of the left side spanner 3, high strength anticreep bolt 4, rubber pad 5, adjusting torque groove 6, fixed pin 7, spacing sliding tray 8, adjusting torque rod 9, middle control linkage segment 10, press the piece 11, the body of the right spanner 12, pinhole 13, flexible groove 14, connecting rod 15, spring 16, the left side runs through groove 17, the right runs through groove 18, No. two spanner 19, left end hand grip area 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a double-end annular wrench group convenient for adjusting torque comprises a first wrench head 1, a left wrench body 3, a right wrench body 12 and a second wrench head 19, wherein the left wrench body 3 is arranged on the left side of the right wrench body 12, the first wrench head 1 is fixedly welded at one end, far away from the right wrench body 12, of the left wrench body 3, the second wrench head 19 is fixedly welded at one end, far away from the left wrench body 3, of the right wrench body 12, a left end gripping area 20 is arranged at the left end of the left wrench body 3, a middle control connecting section 10 is fixedly welded at one end, far away from the second wrench head 19, of the right wrench body 12, and an adjusting torque rod 9 is fixedly welded at one end, far away from the right wrench body 12, of the middle control connecting section 10;
a limiting sliding groove 8 is formed in the middle of the upper surface of the adjusting torque rod 9, a rubber pad 5 is fixedly welded at one end, far away from the middle control connecting section 10, of the adjusting torque rod 9, a telescopic groove 14 is further formed in the adjusting torque rod 9, two ends of the telescopic groove 14 are respectively communicated with a left through groove 17 and a right through groove 18, two groups of connecting rods 15 which are symmetrical in the front and back are movably arranged in the telescopic groove 14, and a fixing pin 7 and a pressing block 11 are fixedly welded at the end portions of the left end and the right end of each connecting rod 15;
the inside adjusting torque groove 6 that is equipped with of right-hand member of turning over body 3 on the left side, all be equipped with pinhole 13 on the both ends inner wall around adjusting torque groove 6, the right-hand member upper surface of adjusting torque groove 6 is equipped with high strength anticreep bolt 4, high strength anticreep bolt 4 is the vertical upper surface of turning over body 3 on the left side of running through and establishes the inside at adjusting torque groove 6, and high strength anticreep bolt 4 establishes the distance in adjusting torque groove 6 inner wall one end unanimously with the degree of depth of spacing sliding tray 8, turn over through screw-thread fit connection between body 3 on the left side high strength anticreep bolt 4 and the.
The length of left end hand holding area 20 is ten centimetres, and the surface of left end hand holding area 20 is equipped with anti-skidding line 2, and the length of pulling body 12 on the right is ten centimetres, and the surface of pulling body 12 on the right is equipped with anti-skidding line 2, and anti-skidding line 2 is the hexagon structure, and anti-skidding line 2 is equipped with the multiunit, and multiunit anti-skidding line 2 is equidistance equidimension range.
The width and the height of the middle control connecting section 10 are respectively smaller than those of the right spanner body 12, and the length of the middle control connecting section 10 is two centimeters.
The length of the adjusting torque rod 9 is fifteen centimeters, and the width and the height of the adjusting torque rod 9 are respectively smaller than those of the middle control connecting section 10.
The limiting sliding groove 8 is of a rectangular groove body-shaped structure, the trend of the limiting sliding groove 8 is consistent with that of the adjusting torque rod 9, and the width of the limiting sliding groove 8 is five centimeters at zero.
The left side through groove 17 and the right side through groove 18 are identical in height, the left side through groove 17 and the right side through groove 18 are higher than the telescopic groove 14, and the left side through groove 17 and the right side through groove 18 respectively penetrate through the front side and the rear side of the left end of the adjusting torque rod 9 and the front end and the rear end of the middle control connecting section 10.
The connecting rods 15 are in a rectangular strip plate structure, and the two groups of connecting rods 15 which are symmetrical front and back are fixedly connected through springs 16.
Fixed pin 7, press the width of piece 11, highly be greater than connecting rod 15's width and height respectively, fixed pin 7, press the equal perpendicular to connecting rod 15 setting of piece 11, connecting rod 15's width and high specification are less, the inside hollow part of adjusting torque rod 9 has been reduced, holistic intensity has been increased, make device life longer, and fixed pin 7 salient in the left side runs through the five millimeters settings at both ends zero point around groove 17, press the surperficial looks parallel and level of piece 11 and middle control linkage segment 10.
The length of adjusting torque groove 6 equals the length of adjusting torque rod 9 plus the length of rubber pad 5, adjusts torque groove 6 and adjusts torque rod 9 phase-match setting, and the right-hand member of adjusting torque groove 6 runs through the right side surface setting of body 3 on the left.
The pin holes 13 are arranged in a rectangular groove body structure, a plurality of groups of pin holes 13 are arranged at equal intervals of one centimeter, and the pin holes 13 and one end of the fixing pin 7 penetrating through the left through groove 17 are arranged correspondingly.
The working principle is as follows:
the double-head ring spanner group in the device consists of a left spanner body 3 and a right spanner body 12, and can be detached, when the fixing pin 7 at the left end of the right spanner body 12 is controlled to be installed and clamped in different pin holes 13 in the left spanner body 3, the length of the whole spanner body can be changed, and therefore the purpose of conveniently changing the torque is achieved;
when the high-strength anti-slip screw 4 is slidably connected into the limiting sliding groove 8 at one end of the adjusting torque groove 6, the adjusting torque rod 9 cannot slip out of the adjusting torque groove 6, slipping or other phenomena cannot occur when the adjusting torque is used, and the safety is high;
the fixing pin 7 is moved out of the pin hole 13 by pressing the pressing blocks 11 on the front side and the rear side, the purpose of movably adjusting the torque rod 9 is achieved, the pressing blocks 11 are loosened when the fixing pin 7 is aligned with the pin hole 13 in a proper position, the fixing pin 7 can be automatically clamped in the corresponding pin hole 13 through the restoring force action of the spring 14, the purpose of fixing the left wrench body 3 and the right wrench body 12 is achieved, the use and the control are convenient, the surface of the pressing blocks 11 is flush with the surface of the middle control connecting section 10, the phenomenon that the fixing pin is easy to fall off due to the fact that the surface of the pressing blocks 11 is not easy to touch by hands is avoided, and the;
the body is pulled on both sides removable, controls the difference of both sides spanner, and the convenience is carried out the overlap joint according to actual demand and is used, and the practicality is strong, and convenient to use is fit for promoting.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a convenient double-end ring spanner group of adjusting moment of torsion, includes a spanner (1), the spanner body (3) on the left side, the spanner body (12) on the right and No. two spanner (19), its characterized in that: the left wrench body (3) is arranged on the left side of the right wrench body (12), the first wrench head (1) is fixedly welded at one end, far away from the right wrench body (12), of the left wrench body (3), the second wrench head (19) is fixedly welded at one end, far away from the left wrench body (3), of the right wrench body (12), the left end of the left wrench body (3) is provided with a left end holding area (20), one end, far away from the second wrench head (19), of the right wrench body (12) is fixedly welded with a middle control connecting section (10), and one end, far away from the right wrench body (12), of the middle control connecting section (10) is fixedly welded with an adjusting torque rod (9);
a limiting sliding groove (8) is formed in the middle of the upper surface of the adjusting torque rod (9), a rubber pad (5) is fixedly welded at one end, far away from the middle control connecting section (10), of the adjusting torque rod (9), a telescopic groove (14) is further formed in the adjusting torque rod (9), two ends of the telescopic groove (14) are respectively communicated with a left through groove (17) and a right through groove (18), two groups of connecting rods (15) which are symmetrical in the front and back are movably arranged in the telescopic groove (14), and a fixing pin (7) and a pressing block (11) are respectively fixedly welded at the end portions of the left end and the right end of each connecting rod (15);
an adjusting torque groove (6) is formed in the right end of the left wrench body (3), pin holes (13) are formed in the inner walls of the front end and the rear end of the adjusting torque groove (6), a high-strength anti-falling bolt (4) is arranged on the upper surface of the right end of the adjusting torque groove (6), the high-strength anti-falling bolt (4) vertically penetrates through the upper surface of the left wrench body (3) and is arranged in the adjusting torque groove (6), the distance between the high-strength anti-falling bolt (4) and one end of the inner wall of the adjusting torque groove (6) is consistent with the depth of the limiting sliding groove (8), and the high-strength anti-falling bolt (4) is in threaded fit connection with the left wrench body (3);
the length of the left-end hand holding area (20) is ten centimeters, the surface of the left-end hand holding area (20) is provided with anti-skidding grains (2), the length of the right wrench body (12) is ten centimeters, the surface of the right wrench body (12) is provided with the anti-skidding grains (2), the anti-skidding grains (2) are of a hexagonal structure, the anti-skidding grains (2) are provided with multiple groups, and the multiple groups of anti-skidding grains (2) are arranged in equal size at equal intervals;
the width and the height of the middle control connecting section (10) are respectively smaller than those of the right wrench body (12), and the length of the middle control connecting section (10) is two centimeters;
the length of the adjusting torque rod (9) is fifteen centimeters, and the width and the height of the adjusting torque rod (9) are respectively smaller than those of the middle control connecting section (10);
the limiting sliding groove (8) is of a rectangular groove body-shaped structure, the trend of the limiting sliding groove (8) is consistent with that of the adjusting torque rod (9), and the width of the limiting sliding groove (8) is zero point five centimeters;
the left through groove (17) and the right through groove (18) are consistent in height, the left through groove (17) and the right through groove (18) are higher than the telescopic groove (14), and the left through groove (17) and the right through groove (18) respectively penetrate through the front side and the rear side of the left end of the adjusting torque rod (9) and the front end and the rear end of the middle control connecting section (10);
the connecting rods (15) are in a rectangular batten structure, and two groups of connecting rods (15) which are symmetrical in front and back are fixedly connected through springs (16);
the width and the height of the fixing pin (7) and the pressing block (11) are respectively greater than those of the connecting rod (15), the fixing pin (7) and the pressing block (11) are both perpendicular to the connecting rod (15), the fixing pin (7) protrudes out of the front end and the rear end of the left through groove (17) for five millimeters, and the surfaces of the pressing block (11) and the middle control connecting section (10) are flush;
the length of the adjusting torque groove (6) is equal to the length of the adjusting torque rod (9) plus the length of the rubber pad (5), the adjusting torque groove (6) and the adjusting torque rod (9) are arranged in a matched mode, and the right end of the adjusting torque groove (6) penetrates through the right side surface of the left wrench body (3) to be arranged;
the pin holes (13) are arranged in a rectangular groove body-shaped structure, a plurality of groups of pin holes (13) are arranged at equal intervals of one centimeter, and the pin holes (13) and one end of the fixing pin (7) penetrating through the left penetrating groove (17) are arranged correspondingly;
when the high-strength anti-slip bolt is used, when the high-strength anti-slip bolt (4) is connected in the limiting sliding groove (8) at one end of the adjusting torque groove (6) in a sliding manner, the adjusting torque rod (9) cannot slip out of the adjusting torque groove (6), and the anti-slip or other phenomena cannot occur when the adjusting torque is used; make fixed pin (7) shift out pinhole (13) through pressing down the piece (11) of pressing down both sides around, reach the purpose of portable regulation torque rod (9), it presses piece (11) to loosen when treating fixed pin (7) alignment suitable position pinhole (13), fixed pin (7) can be through the automatic block of restoring force effect of spring (14) in corresponding pinhole (13), reach the purpose of fixed body (3) and the right body (12) of pulling on the left side, and press the surface of piece (11) and the surperficial parallel and level of middle control linkage segment (10), be difficult to touched by the hand and the phenomenon that easily drops appears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000614.4A CN109079693B (en) | 2018-08-30 | 2018-08-30 | Double-end ring spanner group convenient for adjusting torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811000614.4A CN109079693B (en) | 2018-08-30 | 2018-08-30 | Double-end ring spanner group convenient for adjusting torque |
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| Publication Number | Publication Date |
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| CN109079693A CN109079693A (en) | 2018-12-25 |
| CN109079693B true CN109079693B (en) | 2020-11-13 |
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| CN201811000614.4A Active CN109079693B (en) | 2018-08-30 | 2018-08-30 | Double-end ring spanner group convenient for adjusting torque |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112356128B (en) * | 2020-10-19 | 2022-04-22 | 湖北香噗噗健康产业股份有限公司 | Bergamot mountain tablet section device with isometric cutting function |
| TWI780929B (en) * | 2021-09-27 | 2022-10-11 | 瞬豐實業股份有限公司 | Wrench with high and low torque |
| CN116652879A (en) * | 2023-07-20 | 2023-08-29 | 国网新疆电力有限公司克州供电公司 | A high-altitude bolt and nut tightener that can be operated with one hand |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201047376Y (en) * | 2007-04-30 | 2008-04-16 | 苏州昊乐电器有限公司 | Stretching connecting pipe |
| US20100175514A1 (en) * | 2009-01-14 | 2010-07-15 | Chih-Ching Hsieh | Retractable Wrench |
| AU2013203744B2 (en) * | 2012-09-21 | 2015-07-09 | Jason Paul Rogers | Improvements in and Relating to Telescoping Members |
| TWM488354U (en) * | 2014-05-12 | 2014-10-21 | Aurona Ind Inc | Multi-purpose drilling cover plate |
| CN104405742A (en) * | 2014-10-31 | 2015-03-11 | 重庆市南川区泰城钢化玻璃制品有限责任公司 | Sliding rod available for being positioned |
| CN204664080U (en) * | 2015-05-25 | 2015-09-23 | 樊权民 | Telescopic positioning device |
| CN205552369U (en) * | 2016-04-08 | 2016-09-07 | 湖北工程学院 | Spanner can extend |
| CN206072039U (en) * | 2016-08-31 | 2017-04-05 | 佛山市闽亚金属制品有限公司 | Expansion link with auto-lock function |
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Effective date of registration: 20201029 Address after: 317500 Jiangxia Industrial Park, Wenqiao Town, Wenling City, Taizhou City, Zhejiang Province Applicant after: Zhejiang Boying Machinery Manufacturing Co.,Ltd. Address before: 312500 Xinchang Avenue West Road 206, Xinchang County, Shaoxing City, Zhejiang Province Applicant before: Yang Jiawei |
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Denomination of invention: A Double headed Ring Wrench Set for Convenient Torque Adjustment Effective date of registration: 20231022 Granted publication date: 20201113 Pledgee: Zhejiang Wenling Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang Boying Machinery Manufacturing Co.,Ltd. Registration number: Y2023330002401 |