CN105929206A - Clamping device for power equipment maintenance and installation - Google Patents

Clamping device for power equipment maintenance and installation Download PDF

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Publication number
CN105929206A
CN105929206A CN201610415273.1A CN201610415273A CN105929206A CN 105929206 A CN105929206 A CN 105929206A CN 201610415273 A CN201610415273 A CN 201610415273A CN 105929206 A CN105929206 A CN 105929206A
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CN
China
Prior art keywords
bar
fixing
spring
connecting rod
rod
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Pending
Application number
CN201610415273.1A
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Chinese (zh)
Inventor
周末
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610415273.1A priority Critical patent/CN105929206A/en
Publication of CN105929206A publication Critical patent/CN105929206A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention relates to a clamping device for power equipment maintenance and installation. The clamping device comprises clamping structures, a connecting device, a bending device, a holding device, a pushing device and an elastic device; each clamping structure comprises a first bending rod, a clamping block, a first support and an abutting rod; the connecting device is provided with a first spring, first connecting rods, second bending rods and second connecting rods; the bending device comprises an elastic rod and a third connecting rod; the holding device comprises a fourth connecting rod, a first fixing rod, a holding frame, second fixing rods and limiting blocks; the pushing device comprises a pushing frame, pushing wheels, triangular blocks and second springs; and the elastic device comprises third springs at left and right sides of the fourth connecting rod respectively, fourth springs between the third springs and movable rods on the third springs. The clamping device can stably clamp electrical components and prevent the electrical components from falling off.

Description

A kind of clamping device installed for electric power apparatus examination
Technical field
The present invention relates to electric power apparatus examination field of mechanical technique, particularly relate to a kind of for The clamping device that electric power apparatus examination is installed.
Background technology
Maintainer is needed to go maintenance and inspection, to one before in time when power equipment is damaged Some electric elements of clamping are generally required, in order to replace existing damage during a little electric device maintenance Bad device.But need to use clamping device when clamping some electric elements, existing Clamping device structure is complicated, clamping inconvenience, and clamp the most firm, easily make Electric elements drop, and then cause electric elements to be broken.
Accordingly, it is desirable to provide a kind of new technical scheme solves above-mentioned technical problem.
Summary of the invention
It is an object of the invention to provide a kind of can effectively solve above-mentioned technical problem for electric power The clamping device that overhaul of the equipments is installed.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of clamping device installed for electric power apparatus examination, described for electric power apparatus examination The clamping device installed includes clamp structure, is positioned at the connection dress below described clamp structure Put, be positioned at the bending apparatus below described attachment means, be positioned at below described bending apparatus Grip device, the pushing means being arranged on described grip device and be positioned at described pushing means The elastic device of lower section, described clamp structure is provided with two and staggered relatively, described clamping knot Structure includes the first bent stick, the grip block being arranged in described first bent stick, is arranged at institute State the first support on grip block and the bar that leans being arranged in described first bent stick, described Attachment means is provided with the first spring, is positioned at the first connection of the described first spring left and right sides Bar, the second bent stick being arranged on described head rod, it is positioned at described second bent stick Second connecting rod of lower section, described bending apparatus includes elastic rod, is arranged at described elastic rod On the 3rd connecting rod, described grip device includes the 4th connecting rod, is positioned at the described 4th even Below extension bar first fixes bar, is positioned at and described first fixes gripping frame below bar, be positioned at Described first fixes the second of the bar left and right sides fixes bar, is arranged at described second and fixes on bar Stop block, described pushing means includes pushing frame, is arranged at pushing away of described pushing frame two ends Driving wheel, the corner block being arranged in described pushing frame and be positioned at second above described pushing frame Spring, described elastic device includes the 3rd bullet being positioned at the described 4th connecting rod left and right sides Spring, the 4th spring between described 3rd spring and be positioned at above described 3rd spring Mobile bar.
Described first bent stick is bending, the upper end of described first bent stick and described grip block Side fixing connect, described grip block is cuboid, and described first support is L-shaped, institute State that one end of the first support is fixing with described first bent stick to be connected, described first support another The side of one end and described grip block is fixing to be connected, described in lean bar be bending, described top The two ends of rod are fixing with described first bent stick to be connected.
Described first spring is provided with two and lays respectively between described head rod, and described The end of one spring is fixing with the side of described head rod to be connected, described head rod Being provided with two and be respectively arranged in the first bent stick being positioned at the left and right sides, described first even The upper end of extension bar is fixing with described first bent stick to be connected, and described second bent stick is semicircular ring Shape, the two ends of described second bent stick are fixing with the side of described head rod to be connected, institute Stating the second connecting rod and be provided with two, described second connecting rod is respectively arranged at described second bending On bar, the upper end of described second connecting rod is fixing with described second bent stick to be connected.
Described elastic rod is bending, and the lower end of described head rod is fixed with described elastic rod Connecting, described 3rd connecting rod is provided with two and the left and right two laying respectively in described elastic rod Side, one end of described 3rd connecting rod is fixing with the inner surface of described elastic rod to be connected, described The other end of the 3rd connecting rod is fixing with the side of described head rod to be connected, and described second The lower end of connecting rod is fixing with the upper surface of described 3rd connecting rod to be connected.
The upper end of described 4th connecting rod is fixing with described elastic rod to be connected, described 4th connecting rod Lower end fix with described first that the upper surface of bar is fixing to be connected, described first to fix bar be length Cube, described gripping frame is concave shape, and bar is fixed at the two ends of described gripping frame and described first Lower surface fixing connect, described second fixes bar is provided with two and lays respectively at described first The left and right sides of fixing bar, described second to fix bar be cuboid, and described first fixes bar Lower surface and described second lower surface fixing bar are in same plane, and described stop block sets Having two and be respectively arranged at described second and fix on bar, described stop block is cuboid, institute State the side of stop block and fix with described second that the side of bar is fixing to be connected, described stop block Upper surface and described second upper surface fixing bar are in same plane.
Described pushing frame is concave shape, and the two ends of described pushing frame are provided with groove, and the described 4th even Extension bar runs through the upper and lower surface of described pushing frame and is slidably connected with it, and described promotion wheel is provided with Two and be contained in respectively in described groove, described wheel and described pushing frame axle is promoted to turn even Connecing, described promotion wheel acts against on the surface of described elastic rod.
Described corner block is provided with two and lays respectively at the left and right sides in described pushing frame, described The rectangular triangle of cross section of corner block, the side of described corner block and described pushing frame Inner surface is fixing to be connected, and described second spring is provided with two and lays respectively at described 4th connection The left and right sides of bar, described second spring is vertical shape, the lower end of described second spring and institute Stating the fixing connection of pushing frame, the upper end of described second spring is fixing with described elastic rod to be connected.
Described 3rd spring is provided with two, and one end of described 3rd spring is fixed with described mobile bar Connecting, the other end of described 3rd spring is fixed bar and is fixed and be connected with described first, and described the Four springs are provided with two, and one end of described 4th spring is fixing with described pushing frame to be connected, institute State the other end of the 4th spring and fix with described first that bar is fixing to be connected.
Described mobile bar is provided with two and lays respectively at the left and right sides of described pushing frame, described Mobile bar is cuboid, and one end of described mobile bar is fixing with the side of described pushing frame even Connecing, the other end of described mobile bar acts against described second and fixes on the side of bar and slide with it It is dynamically connected.
After using technique scheme, present invention have the advantage that
The clamping device simple in construction that the present invention installs for electric power apparatus examination, user Just, it is possible to by firm the clamping of electric elements, prevent electric elements from dropping, and use Simplicity, can effectively improve the efficiency of maintenance.
Accompanying drawing explanation
Tool to the clamping device that the present invention installs for electric power apparatus examination below in conjunction with the accompanying drawings Body embodiment is described further:
Fig. 1 is the structural representation of the clamping device that the present invention installs for electric power apparatus examination Figure;
Detailed description of the invention
As it is shown in figure 1, the present invention includes folder for the clamping device that electric power apparatus examination is installed Hold structure 1, be positioned at the attachment means 2 below described clamp structure 1, be positioned at described connect dress Put the bending apparatus 3 below 2, be positioned at the grip device 4 below described bending apparatus 3, set It is placed in the pushing means 5 on described grip device 4 and is positioned at below described pushing means 5 Elastic device 6.
As it is shown in figure 1, described clamp structure 1 is provided with two and staggered relatively, thus when folder Hold structure 1 close to each other time can easily electric elements be clamped.Described clamp structure 1 include the first bent stick 11, the grip block 12 being arranged in described first bent stick 11, The first support 13 of being arranged on described grip block 12 and be arranged at described first bent stick 11 On lean bar 14.Described first bent stick 11 in bending, described first bent stick 11 The side of upper end and described grip block 12 fixing be connected.Described grip block 12 is in rectangular Body, the material that described grip block 12 uses coefficient of friction bigger is made, thus is worked as grip block 12 can clamp electric elements time close to each other.Described first support 13 is L-shaped, institute State that one end of the first support 13 is fixing with described first bent stick 11 to be connected, described first The other end of frame 13 is fixing with the side of described grip block 12 to be connected, thus to described clamping Block 12 is played a supporting role.The described bar 14 that leans in bending, described in lean the two of bar 14 End is fixed with described first bent stick 11 and is connected, be positioned at the left and right sides to lean bar 14 mutual Electric elements further can be clamped time close.
As it is shown in figure 1, described attachment means 2 is provided with the first spring 23, is positioned at described first The head rod 21 of spring 23 left and right sides, it is arranged on described head rod 21 Second bent stick 22, it is positioned at the second connecting rod 24 below described second bent stick 22.Institute State the first spring 23 be provided with two and lay respectively between described head rod 21, described The end of the first spring 23 is fixing with the side of described head rod 21 to be connected, thus right Described head rod 21 is played a supporting role.Described head rod 21 be provided with two and It is respectively arranged in the first bent stick 11 being positioned at the left and right sides, described head rod 21 Upper end fixing with described first bent stick 11 be connected.Described second bent stick 22 is in semicircle Ring-type, the two ends of described second bent stick 22 are fixed with the side of described head rod 21 Connect, facilitate user to hold.Described second connecting rod 24 is provided with two, and described second even Extension bar 24 is respectively arranged in described second bent stick 22, described second connecting rod 24 upper Hold be connected fixing with described second bent stick 22.
As it is shown in figure 1, described bending apparatus 3 includes elastic rod 31, is arranged at described elasticity The 3rd connecting rod 32 on bar 31.Described elastic rod 31 in bending, described elastic rod 31 Employing elastomeric material is made, and described elastic rod 31 can occur elastic deformation.Described first even The lower end of extension bar 21 is fixing with described elastic rod 31 to be connected.Described 3rd connecting rod 32 is provided with Two and lay respectively at the left and right sides in described elastic rod 31, described 3rd connecting rod 32 The inner surface of one end and described elastic rod 31 fixing be connected, described 3rd connecting rod 32 The other end is fixing with the side of described head rod 21 to be connected, thus connects described first Bar 21 is played a supporting role, the lower end of described second connecting rod 24 and described 3rd connecting rod The upper surface of 32 is fixing to be connected.
As it is shown in figure 1, described grip device 4 includes the 4th connecting rod 41, is positioned at described Below four connecting rods 41 first fixes bar 42, is positioned at described first and fixes below bar 42 Grip frame 43, be positioned at described first and fix the second of bar 42 left and right sides and fix bar 44, set It is placed in the described second stop block 45 fixing on bar 44.The upper end of described 4th connecting rod 42 Fix with described elastic rod 31 and be connected, the lower end and described first of described 4th connecting rod 42 The upper surface of fixing bar 42 is fixing to be connected.Described first fixes bar 42 in cuboid.Described Gripping frame 43 is in concave shape, and bar 42 is fixed at the two ends of described gripping frame 43 and described first Lower surface is fixing to be connected, and facilitates user to hold.Described second fix bar 44 be provided with two and Laying respectively at described first left and right sides fixing bar 42, described second fixes bar 44 in length Cube, described first fixes lower surface and described second lower surface fixing bar 44 of bar 42 It is in same plane.Described stop block 45 is provided with two and is respectively arranged at described second admittedly In fixed pole 44, described stop block 45 is in cuboid, and the side of described stop block 45 is with described Second fixes that the side of bar 44 is fixing to be connected, the upper surface of described stop block 45 and described the Two upper surfaces fixing bar 44 are in same plane.
As it is shown in figure 1, described pushing means 5 includes pushing frame 51, is arranged at described promotion The promotion wheel 52 at frame 51 two ends, the corner block 53 being arranged in described pushing frame 51 and position The second spring 54 above described pushing frame 51.Described pushing frame 51 in concave shape, institute The two ends stating pushing frame 51 are provided with groove 511, and described groove 511 is in rectangular-shaped, described 4th connecting rod 41 runs through the upper and lower surface of described pushing frame 51 and is slidably connected with it, makes Obtain described pushing frame 51 can move up and down.Described promotion wheel 52 is provided with two and receives respectively It is dissolved in described groove 511, described promotes wheel 52 to turn with described pushing frame 51 axle to be connected, Described promotion wheel 52 acts against on the surface of described elastic rod 31.Described corner block 53 is provided with Two and lay respectively at the left and right sides in described pushing frame 51, the horizontal stroke of described corner block 53 The interior table of the rectangular triangle in cross section, the side of described corner block 53 and described pushing frame 51 Face is fixing to be connected, thus described pushing frame 51 is played fixing effect.Described second spring 54 are provided with two and lay respectively at the left and right sides of described 4th connecting rod 41, and described second Spring 54 is in vertical shape, and the lower end of described second spring 54 is fixing even with described pushing frame 51 Connecing, the upper end of described second spring 54 is fixing with described elastic rod 31 to be connected, thus to institute State pushing frame 51 to play a supporting role.
As it is shown in figure 1, described elastic device 6 includes being positioned at described 4th connecting rod about 41 3rd spring 61 of both sides, the 4th spring 62 and position between described 3rd spring 61 Mobile bar 63 above described 3rd spring 61.Described 3rd spring 61 is provided with two, One end of described 3rd spring 61 is fixing with described mobile bar 63 to be connected, described 3rd spring The other end of 61 fixes with described first that bar 42 is fixing to be connected, thus to described mobile bar 63 Play a supporting role.Described 4th spring 62 is provided with two, the one of described 4th spring 62 End is fixing with described pushing frame 51 to be connected, the other end of described 4th spring 62 and described the One fixes the fixing connection of bar 42, thus plays a supporting role described pushing frame 51.Described Mobile bar 63 is provided with two and lays respectively at the left and right sides of described pushing frame 51, described shifting Lever 63 is in cuboid, and one end of described mobile bar 63 is solid with the side of described pushing frame 51 Fixed connection, the other end of described mobile bar 63 acts against the described second side fixing bar 44 Upper and be slidably connected with it so that described mobile bar 63 and described pushing frame 51 can together with Move up and down.
As it is shown in figure 1, the clamping device that the described present invention installs for electric power apparatus examination makes Used time, first hold gripping frame 43, and at pushing frame 43, pull pushing frame 51, make Described pushing frame 51 near described gripping frame 43, owing to pushing frame 51 is away from elastic rod 31 so that the two ends of described elastic rod 31 are to two lateral bends, and then make described first to connect Bar 21 and the first bent stick 11, grip block 12 are located remotely from each other, and then make described grip block There is certain space between 12, facilitate electric elements to be placed between grip block 12.So After grip block 12 moved to the both sides of electric elements, and be in and lean between bar 14, Make grip block 12 can clamp electric elements.Then hand unclamps pushing frame 51 so that Described pushing frame 51 is in the 3rd spring the 61, the 4th spring 62 and the effect of the second spring 54 Lower close at elastic rod 31 so that described pushing frame 51 is away from gripping frame 43, and then makes Wheel 52 must be promoted to act against on described elastic rod 31 so that the two ends phase of described elastic rod 31 The most close, and then make head rod 21, lean bar 14 and grip block 12 mutually leans on Closely, until electric elements are clamped by described grip block 12, lean bar 14 can also simultaneously Electric elements are clamped, prevent clamping cause electric elements to drop on the ground built on the sand causing It damages.So far, the clamping device that the present invention installs for electric power apparatus examination uses process Describe.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also Being not limited to this, any those skilled in the art are at the technical scope that the invention discloses In, change can be readily occurred in or replace, all should contain within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims (9)

1. the clamping device installed for electric power apparatus examination, it is characterised in that: described it is used for The clamping device that electric power apparatus examination is installed includes clamp structure, is positioned under described clamp structure The attachment means of side, it is positioned at the bending apparatus below described attachment means, is positioned at described bending Grip device, the pushing means being arranged on described grip device below device and be positioned at institute Stating the elastic device below pushing means, described clamp structure is provided with two and staggered relatively, Described clamp structure includes the first bent stick, the clamping being arranged in described first bent stick Block, the first support being arranged on described grip block and be arranged in described first bent stick Leaning bar, described attachment means is provided with the first spring, is positioned at the described first spring left and right sides Head rod, the second bent stick being arranged on described head rod, be positioned at described The second connecting rod below second bent stick, described bending apparatus includes elastic rod, is arranged at The 3rd connecting rod on described elastic rod, described grip device includes the 4th connecting rod, is positioned at Below described 4th connecting rod first fixes bar, is positioned at described first and fixes holding below bar Hold frame, be positioned at described first and fix the second of the bar left and right sides and fix bar, be arranged at described Two fix the stop block on bar, and described pushing means includes pushing frame, is arranged at described promotion The promoting wheel, the corner block that is arranged in described pushing frame and be positioned at described pushing frame of frame two ends Second spring of top, described elastic device includes being positioned at the described 4th connecting rod left and right sides The 3rd spring, the 4th spring between described 3rd spring and be positioned at described 3rd bullet Mobile bar above spring.
The clamping device installed for electric power apparatus examination the most according to claim 1, it is special Levying and be: described first bent stick is bending, the upper end of described first bent stick is with described The side of grip block is fixing to be connected, and described grip block is cuboid, and described first support is L Type, one end of described first support is fixing with described first bent stick to be connected, described first The side of the other end of frame and described grip block is fixing to be connected, described in lean bar be bending, The described two ends leaning bar are fixed with described first bent stick and are connected.
The clamping device installed for electric power apparatus examination the most according to claim 2, it is special Levy and be: described first spring is provided with two and lays respectively between described head rod, The end of described first spring is fixing with the side of described head rod to be connected, and described first Connecting rod is provided with two and is respectively arranged in the first bent stick being positioned at the left and right sides, described The upper end of head rod and described first bent stick are fixing to be connected, described second bent stick in Semi-annular shape, the two ends of described second bent stick are fixing with the side of described head rod even Connecing, described second connecting rod is provided with two, and described second connecting rod is respectively arranged at described In two bent stick, the upper end of described second connecting rod is fixing with described second bent stick to be connected.
The clamping device installed for electric power apparatus examination the most according to claim 3, it is special Levy and be: described elastic rod is bending, the lower end of described head rod and described elasticity Bar is fixing to be connected, and described 3rd connecting rod is provided with two and lays respectively in described elastic rod The left and right sides, one end of described 3rd connecting rod is fixing with the inner surface of described elastic rod even Connecing, the other end of described 3rd connecting rod is fixing with the side of described head rod to be connected, The lower end of described second connecting rod is fixing with the upper surface of described 3rd connecting rod to be connected.
The clamping device installed for electric power apparatus examination the most according to claim 4, it is special Levy and be: the upper end of described 4th connecting rod is fixing with described elastic rod to be connected, the described 4th The lower end of connecting rod fixes with described first that the upper surface of bar is fixing to be connected, and described first is fixing Bar is cuboid, and described gripping frame is concave shape, the two ends of described gripping frame and described first The lower surface of fixing bar is fixing to be connected, and described second fixes bar is provided with two and lays respectively at institute Stating first left and right sides fixing bar, described second to fix bar be cuboid, and described first is solid The lower surface of fixed pole and described second lower surface fixing bar are in same plane, described limit Determining block be provided with two and be respectively arranged at described second and fix on bar, described stop block is rectangular Body, the side of described stop block fixes with described second that the side of bar is fixing to be connected, described limit The upper surface determining block is in same plane with described second upper surface fixing bar.
The clamping device installed for electric power apparatus examination the most according to claim 5, it is special Levying and be: described pushing frame is concave shape, the two ends of described pushing frame are provided with groove, described 4th connecting rod runs through the upper and lower surface of described pushing frame and is slidably connected with it, described promotion Wheel is provided with two and is contained in respectively in described groove, and described promotion is taken turns and described pushing frame axle Turning and connect, described promotion wheel acts against on the surface of described elastic rod.
The clamping device installed for electric power apparatus examination the most according to claim 6, it is special Levy and be: described corner block is provided with two and the left and right two laying respectively in described pushing frame Side, the rectangular triangle of cross section of described corner block, the side of described corner block is with described The inner surface of pushing frame is fixing to be connected, and described second spring is provided with two and lays respectively at described The left and right sides of the 4th connecting rod, described second spring is vertical shape, described second spring Lower end is fixing with described pushing frame to be connected, and the upper end of described second spring is solid with described elastic rod Fixed connection.
The clamping device installed for electric power apparatus examination the most according to claim 7, it is special Levy and be: described 3rd spring is provided with two, one end of described 3rd spring and described movement Bar is fixing to be connected, and the other end of described 3rd spring is fixed bar and fixed and be connected with described first, Described 4th spring is provided with two, and one end of described 4th spring is fixing with described pushing frame even Connecing, the other end of described 4th spring fixes with described first that bar is fixing to be connected.
The clamping device installed for electric power apparatus examination the most according to claim 8, it is special Levy and be: described mobile bar is provided with two and lays respectively at the left and right sides of described pushing frame, Described mobile bar is cuboid, and one end of described mobile bar is fixed with the side of described pushing frame Connect, the other end of described mobile bar act against described second fix on the side of bar and and its It is slidably connected.
CN201610415273.1A 2016-06-14 2016-06-14 Clamping device for power equipment maintenance and installation Pending CN105929206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610415273.1A CN105929206A (en) 2016-06-14 2016-06-14 Clamping device for power equipment maintenance and installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610415273.1A CN105929206A (en) 2016-06-14 2016-06-14 Clamping device for power equipment maintenance and installation

Publications (1)

Publication Number Publication Date
CN105929206A true CN105929206A (en) 2016-09-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610415273.1A Pending CN105929206A (en) 2016-06-14 2016-06-14 Clamping device for power equipment maintenance and installation

Country Status (1)

Country Link
CN (1) CN105929206A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103369853A (en) * 2012-04-11 2013-10-23 鸿富锦精密工业(深圳)有限公司 Clamping tool
CN104985098A (en) * 2015-07-25 2015-10-21 周盈裕 Mechanical arm for metal forging
CN105186356A (en) * 2015-10-21 2015-12-23 杨忠桃 Cable fixing device for petroleum wellhead fishing operation
CN105615945A (en) * 2016-03-10 2016-06-01 张佳训 Novel operative tumor extracting clamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103369853A (en) * 2012-04-11 2013-10-23 鸿富锦精密工业(深圳)有限公司 Clamping tool
CN104985098A (en) * 2015-07-25 2015-10-21 周盈裕 Mechanical arm for metal forging
CN105186356A (en) * 2015-10-21 2015-12-23 杨忠桃 Cable fixing device for petroleum wellhead fishing operation
CN105615945A (en) * 2016-03-10 2016-06-01 张佳训 Novel operative tumor extracting clamp

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Application publication date: 20160907