CN103612242A - Adjustable EHV (extra high voltage) converter valve water-cooling branch water pipe connector mounting and demounting tool - Google Patents
Adjustable EHV (extra high voltage) converter valve water-cooling branch water pipe connector mounting and demounting tool Download PDFInfo
- Publication number
- CN103612242A CN103612242A CN201310574645.1A CN201310574645A CN103612242A CN 103612242 A CN103612242 A CN 103612242A CN 201310574645 A CN201310574645 A CN 201310574645A CN 103612242 A CN103612242 A CN 103612242A
- Authority
- CN
- China
- Prior art keywords
- water pipe
- adjustable
- ehv
- converter valve
- screw
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Classifications
-
- 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
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/143—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses an adjustable EHV (extra high voltage) converter valve water-cooling branch water pipe connector mounting and demounting tool. The tool comprises a handle and plates in connection, the plates include a fixed plate and a movable plate capable of moving, and the movable plate is driven, by an adjusting device arranged on the fixed plate, to reciprocate along a movable plate guide hole formed in the fixed plate and be positioned so as to change relative distance between a movable plate clamping portion and a fixed plate clamping portion. By the arrangement of the distance-adjustable plates and the length-adjustable handle, singleness in use of existing tools is solved, universality of the converter valve water-cooling branch water pipe connector mounting and demounting tool is realized, and hexagonal water pipe connectors in different sizes can be seamlessly jointed by the connector design of the tool, so that the tool can clamp the water pipe connectors firmly, number of carried tools is decreased greatly, tool replacing time is reduced, and time consumed for maintaining is shortened.
Description
Technical field
The present invention relates to extra-high voltage or super high voltage direct current electricity transmission field, be specifically related to a kind of adjustable converter valve water-cooled branch water pipe head mounting or dismounting tools.
Background technology
Along with extra-high voltage, super high voltage direct current electricity transmission engineering construction and development, converter valve with cooling by water mode is promoted and application popularization at DC transmission engineering, in converter valve equipment operation maintenance, the water-cooled branch water pipe head quantity of a current conversion station is not less than 12,000, and joint dimension specification presents diversity, for ultra-high voltage converter station ,Yi“± 800kV Chu Sui DC engineering " be example, water-cooled branch water pipe head quantity is more up to 21120, and variety classes has 6 kinds.Due to the restricted gender in minute space, branching pipe place, realize the water-cooled branch water pipe head mounting or dismounting tools of converter valve is mainly to Custom Prosthesis instrument at present, one branch's water pipe head of the corresponding ad-hoc location of instrument, specific standard, and its inconvenience of bringing has:
1. for each plant maintenance, must carry the instrument of various types of customizations, carry heaviness, be unfavorable for work high above the ground;
2. when dividing branching pipe to work continuously to diverse location or different types of water-cooled, need the more replacing instrument time of cost, and at least need two people to coordinate, repeatedly in tool for transmitting, increasing operating risk, be unfavorable for rushing to repair operation, directly reduce DC energy availability.
The invention reside in and solve the unicity that existing instrument uses, realize the versatility of converter valve water-cooled branch water pipe head mounting or dismounting tools.Use this instrument to compare with existing instrument, within 1 year, can directly reduce direct current stop transport 12 hours every utmost points or every valve group (comprising annual plant maintenance), with one pole or single valve group, carry electric weight 1030MW to calculate, can new output value approximately 6,303 ten thousand yuan.
Summary of the invention
For above-mentioned technical problem, the present invention is intended to solve the problems of the technologies described above at least to a certain extent.
The object of this invention is to provide a kind of simple in structure, easy to use, versatility is good, easy to carry, adaptable adjustable EHV converter valve water-cooled branch water pipe head mounting or dismounting tools.
The present invention is achieved by the following technical solution:
A kind of adjustable EHV converter valve water-cooled branch water pipe head mounting or dismounting tools, comprise the handle being connected and pull body, the described body of pulling comprises and fixedly pulls body and moveable plate body, and described movable plate body drives and can move back and forth and locate to change Flexible spanner body clamping part and fixedly pull the relative distance between body clamping part along fixedly pulling the Flexible spanner body pilot hole arranging on body by being arranged on the adjusting device of fixedly pulling on body, described adjusting device comprises the hollow double-screw bolt being embedded in fixed plate body, through hollow double-screw bolt, be anchored on the screw rod in the screw rod fixing hole of fixedly pulling on body, described hollow double-screw bolt can be around bolt rotary, on described movable plate body, be provided with the Flexible spanner body threaded portion being meshed with hollow stud, the cylinder of described hollow double-screw bolt is provided with increases carefully colored impression of the bar shaped of friction, described Flexible spanner body clamping part with fixedly pull body clamping part (62) on be provided with the v-shaped structure that opening is relative, , the opening angle of described v-shaped structure is 90~120 degree, the bottom of described v-shaped structure is provided with rectangular channel, the width of described rectangular channel is 3.95-4.05mm.
Further, the described end face of fixedly pulling body is provided with for the fixing limited screw of Flexible spanner body position.
Further, the described end face of fixedly pulling body is provided with for regulating the graduation mark of Flexible spanner body position.
Further, described handle comprises the connecting rod 8 that one end is connected with fixed plate body, the other end is connected with slide block.
Further, described connecting rod is inserted in the connecting hole of fixedly pulling body, by pin, is connected.
Further, described slide block is penetratingly provided with along its length for holding the slide block through hole of connecting rod, described connecting rod outer wall is provided with stopper slot along its length, in described stopper slot, be evenly provided with 1 above locking screw holes, one side of described slide block relative limit groove is provided with slider locking hole, and place, described slider locking hole is provided with the lock-screw matching with locking screw holes.
Further, in described slide block, also embed the fast-positioning device that is provided with through slide block through hole, described fast-positioning device comprises spring catch, spring and steel ball from outside to inside, and the one side of the relative steel ball of described connecting rod is provided with 1 above hemispherical spacing hole matching with steel ball along its length uniformly.
Further, described slide block is provided with for connecting the auxiliary connecting hole of boosting-rod and the locking hole of through this auxiliary connecting hole away from the one end of fixedly pulling body.
Further, described slide block, screw rod, hollow double-screw bolt, Flexible spanner body, fixedly pull body, connecting rod, lock-screw surface all plating have chromium layer.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is by arranging the body of pulling of adjustable distance, and the handle of adjustable length, solve the unicity that existing instrument uses, realize the versatility of converter valve water-cooled branch water pipe head mounting or dismounting tools, the design of the joint of instrument can realize carries out slitless connection to the hexagonal water pipe head of different sizes, thereby can firm clamping water pipe head, use this instrument to compare with existing instrument, greatly the instrument of simplifying carries quantity, reduce the tool changing time, shorten maintenance consuming time, within 1 year, can directly reduce direct current stop transport 12 hours every utmost points or every valve group (comprising annual plant maintenance), with one pole or single valve group, carry electric weight 1030MW to calculate, can new output value approximately 6,303 ten thousand yuan.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the embodiment of the present invention.
Fig. 2 is the perspective view of embodiment of the present invention slide block.
Fig. 3 is that the master of embodiment of the present invention slide block looks schematic diagram.
Fig. 4 is the schematic top plan view of embodiment of the present invention slide block.
Fig. 5 is A place enlarged diagram in Fig. 4.
Fig. 6 is the perspective view of embodiment of the present invention connecting rod.
Fig. 7 is that the master of embodiment of the present invention connecting rod looks schematic diagram.
Fig. 8 is that schematic diagram is looked on the right side of embodiment of the present invention connecting rod.
Fig. 9 is that schematic diagram is looked on a left side for embodiment of the present invention connecting rod.
Figure 10 is that the master that the embodiment of the present invention is fixedly pulled body looks schematic diagram.
Figure 11 is that schematic diagram is looked on the left side that the embodiment of the present invention is fixedly pulled body.
Figure 12 is the perspective view that the embodiment of the present invention is fixedly pulled body.
Figure 13 is the cross-sectional schematic that the embodiment of the present invention is fixedly pulled body.
Figure 14 is that the master of embodiment of the present invention Flexible spanner body looks schematic diagram.
Figure 15 is the perspective view of embodiment of the present invention Flexible spanner body.
The stressed schematic diagram of pipe joint when Figure 16 is embodiment of the present invention use.
Shown in figure, be: 1-slide block; 11-slide block through hole; 12-assists connecting hole; 13-locking hole; 14-slider locking hole; 15-steel ball; 16-spring; 17-spring catch; 2-screw rod; 3-hollow double-screw bolt; 4-Flexible spanner body; 41--Flexible spanner body threaded portion; 42-Flexible spanner body clamping part; 5-limited screw; 6-fixedly pulls body; 61-connecting hole; 62-fixedly pulls body clamping part; 63-Flexible spanner body pilot hole; 64-screw rod fixing hole; 7-pin; 8-connecting rod; 81-pin hole; 82-locking screw holes; 83-stopper slot; 84-spacing hole; 9-lock-screw.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
As shown in Fig. 1, Figure 10 to Figure 15, a kind of adjustable EHV converter valve water-cooled branch water pipe head mounting or dismounting tools, comprise the handle being connected and pull body, the described body of pulling comprises and fixedly pulls body 6 and moveable plate body 4, and described movable plate body 4 drives and can move back and forth and locate to change Flexible spanner body clamping part 42 and fixedly pull the relative distance between body clamping part 62 along the Flexible spanner body pilot hole 63 of fixedly pulling setting on body 6 by being arranged on the adjusting device of fixedly pulling on body 6.
As Fig. 1 and Figure 14, shown in Figure 15, described adjusting device comprises the hollow double-screw bolt 3 being embedded in fixed plate body 6, through hollow double-screw bolt 3, be anchored on the screw rod 2 in the screw rod fixing hole 64 of fixedly pulling on body 6, described hollow double-screw bolt 3 can rotate around screw rod 2, on described movable plate body 4, be provided with the Flexible spanner body threaded portion 41 being meshed with hollow stud 3, the cylinder of described hollow double-screw bolt 3 is provided with increases carefully colored impression of the bar shaped of friction, described Flexible spanner body clamping part 42 with fixedly pull body clamping part 62 on be provided with the v-shaped structure that opening is relative, , the opening angle of described v-shaped structure is 90~120 degree, the bottom of described v-shaped structure is provided with rectangular channel, the width L of described rectangular channel is 3.95-4.05mm.
As shown in figure 16, when the width L of rectangular channel < 4.05, can make water pipe head stressed less, be conducive to protect water pipe head.The width of rectangular channel is less simultaneously, and water pipe head is stressed less, can avoid joint because of stressed excessive wearing and tearing.
But, if the width L of rectangular channel is too small, while being less than 3.95mm, be unfavorable for fastening to branch's water pipe head, easily the corner angle of joint are led to circle, cause that branch's water pipe head and spanner are stressed to skid.
Experiment shows:
1), when L=2mm, sunykatuib analysis result shows that the application point stress of hex union and spanner is respectively
σA=6.132MPa;σB=9.458MPa;σC=9.785MPa;σD=6.172MPa。
2), when L=4mm, sunykatuib analysis result shows that the application point stress of hex union and spanner is respectively
σA=8.35MPa;σB=9.79MPa;σC=9.36MPa;σD=8.43MPa。
3), when L=6mm, sunykatuib analysis result shows that the application point stress of hex union and spanner is respectively
σA=12.825MPa;σB=12.81MPa;σC=12.529MPa;σD=13.911MPa。
By above-mentioned data, can be drawn, be best recess width when L=4mm.
The described end face of fixedly pulling body 6 is provided with for the fixing limited screw 5 of Flexible spanner body 4 positions.
The described end face of fixedly pulling body 6 is provided with for regulating the graduation mark of Flexible spanner body 4 positions.
See Fig. 1, described handle comprises the connecting rod 8 that one end is connected with fixed plate body 6, the other end is connected with slide block 1.
As shown in Fig. 1 and Figure 10, described connecting rod 8 is inserted in the connecting hole 61 of fixedly pulling body 6, by pin 7, is connected.
As shown in Fig. 6 to 9, described slide block 1 is penetratingly provided with along its length for holding the slide block through hole 11 of connecting rod 8, described connecting rod 8 outer walls are provided with stopper slot 83 along its length, described stopper slot 83 is interior is evenly provided with 1 above locking screw holes 82, one side of described slide block 1 relative limit groove 83 is provided with slider locking hole 14, and 14 places, described slider locking hole are provided with the lock-screw 9 matching with locking screw holes 82.
As shown in Figures 4 and 5, in described slide block 1, also embed the fast-positioning device that is provided with through slide block through hole 11, described fast-positioning device comprises spring catch 17 from outside to inside, spring 16 and steel ball 15, the one side of the relative steel ball 15 of described connecting rod is provided with 1 above hemispherical spacing hole 84 matching with steel ball 15 along its length uniformly, when slide block 1 moves to certain position, at spring 16, promoting steel ball 15 is embedded in spacing hole 84, realize the location of slide block 1, now, user can screw in slider locking hole 14 and locking screw holes 82 by lock-screw 9, the fixing relative position of slide block 1 and connecting rod 8.
As shown in Figure 2, described slide block 1 is provided with for connecting the auxiliary connecting hole 12 of boosting-rod and the locking hole 13 of through this auxiliary connecting hole 12 away from the one end of fixedly pulling body 6, convenient inadequate in decreased food, in the time of cannot producing moment of torsion, user can connect boosting-rod in auxiliary connecting hole 12, to obtain larger moment of torsion.
For improving the case hardness of each parts, increase the service life, described slide block 1, screw rod 2, hollow double-screw bolt 3, Flexible spanner body 4, fixedly pull body 6, connecting rod 8, lock-screw 9 surfaces all plating have chromium layer.
Before use, can be according to hand propelled double-screw bolt 3 rotations for on-the-spot actual needs, regulate Flexible spanner body 4 and fixedly pull the distance between body 6, can by Flexible spanner body 4 with fixedly pull body 6 on the situation of aliging of the groove that arranges judge, after adjusting puts in place, user is regulating handle length according to circumstances, if desired regulate, unscrew lock-screw 9, pull slide block 1 to appropriate location, after steel ball 15 is located automatically, tighten again lock-screw 9, realizing decreased food regulates, when occurring that the length adjustment of handle still cannot be pulled water pipe head to maximum, can in auxiliary connecting hole 12 connecting holes, insert boosting-rod, and in locking hole, screw in sharp screw and be fixed, can further extend the length of handle, reach the object that turns water pipe head, the maximum appearance and size 140X35X29 (MM) of adjustable EHV converter valve water-cooled branch's water pipe head mounting or dismounting tools that the present embodiment provides, specification 12----19 (MM), length adjustment 100---140 (MM), minimum actionradius 22MM, can bear torsion≤4.5N.M, tool work position is carried out stiffened and is processed HRC45, tool surfaces chromium plating.
The above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection domain of the claims in the present invention.
Claims (9)
1. an adjustable EHV converter valve water-cooled branch water pipe head mounting or dismounting tools, comprise the handle being connected and pull body, it is characterized in that: described in pull body and comprise and fixedly pull body (6) and moveable plate body (4), described movable plate body (4) drives and can move back and forth and locate to change Flexible spanner body clamping part (42) and fixedly pull the relative distance between body clamping part (62) along the Flexible spanner body pilot hole (63) of fixedly pulling the upper setting of body (6) by being arranged on the adjusting device of fixedly pulling on body (6);
Described adjusting device comprises the hollow double-screw bolt (3) being embedded in fixed plate body (6), through hollow double-screw bolt (3), be anchored on the screw rod (2) in the screw rod fixing hole (64) of fixedly pulling on body (6), described hollow double-screw bolt (3) can rotate around screw rod (2), on described movable plate body (4), be provided with the Flexible spanner body threaded portion (41) being meshed with hollow stud (3), the cylinder of described hollow double-screw bolt (3) is provided with increases carefully colored impression of the bar shaped of friction, described Flexible spanner body clamping part (42) with fixedly pull body clamping part (62) on be provided with the v-shaped structure that opening is relative, the opening angle of described v-shaped structure is 120 degree, the bottom of described v-shaped structure is provided with rectangular channel, the width of described rectangular channel is 3.95-4.05mm.
2. adjustable EHV converter valve water-cooled according to claim 1 branch water pipe head mounting or dismounting tools, is characterized in that: the described end face of fixedly pulling body (6) is provided with for the fixing limited screw (5) of Flexible spanner body (4) position.
3. adjustable EHV converter valve water-cooled according to claim 2 branch water pipe head mounting or dismounting tools, is characterized in that: the described end face of fixedly pulling body (6) is provided with for regulating the graduation mark of Flexible spanner body (4) position.
4. according to the adjustable EHV converter valve water-cooled branch water pipe head mounting or dismounting tools described in claims 1 to 3 any one, it is characterized in that: described handle comprises the connecting rod (8) that one end is connected with fixed plate body (6), the other end is connected with slide block (1).
5. adjustable EHV converter valve water-cooled according to claim 4 branch water pipe head mounting or dismounting tools, is characterized in that: described connecting rod (8) is inserted in the connecting hole (61) of fixedly pulling body (6), by pin (7), is connected.
6. adjustable EHV converter valve water-cooled according to claim 5 branch water pipe head mounting or dismounting tools, it is characterized in that: described slide block (1) is penetratingly provided with along its length for holding the slide block through hole (11) of connecting rod (8), described connecting rod (8) outer wall is provided with stopper slot (83) along its length, in described stopper slot (83), be evenly provided with 1 above locking screw holes (82), one side of described slide block (1) relative limit groove (83) is provided with slider locking hole (14), the lock-screw (9 matching with locking screw holes (82) is located to be provided with in described slider locking hole (14).
7. adjustable EHV converter valve water-cooled according to claim 6 branch water pipe head mounting or dismounting tools, it is characterized in that: in described slide block (1), also embed the fast-positioning device that is provided with through slide block through hole (11), described fast-positioning device comprises spring catch (17), spring (16) and steel ball (15) from outside to inside, and the one side of the relative steel ball of described connecting rod (15) is provided with 1 above hemispherical spacing hole (84) matching with steel ball (15) along its length uniformly.
8. adjustable EHV converter valve water-cooled according to claim 7 branch water pipe head mounting or dismounting tools, is characterized in that: described slide block (1) is provided with for connecting the auxiliary connecting hole (12) of boosting-rod and the locking hole (13) of through this auxiliary connecting hole (12) away from the one end of fixedly pulling body (6).
9. adjustable EHV converter valve water-cooled according to claim 8 branch water pipe head mounting or dismounting tools, is characterized in that: described slide block (1), screw rod (2), hollow double-screw bolt (3), Flexible spanner body (4), fixedly pull body (6), connecting rod (8), lock-screw (9) surface all plating have chromium layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310574645.1A CN103612242B (en) | 2013-11-15 | 2013-11-15 | Adjustable EHV (extra high voltage) converter valve water-cooling branch water pipe connector mounting and demounting tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310574645.1A CN103612242B (en) | 2013-11-15 | 2013-11-15 | Adjustable EHV (extra high voltage) converter valve water-cooling branch water pipe connector mounting and demounting tool |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103612242A true CN103612242A (en) | 2014-03-05 |
CN103612242B CN103612242B (en) | 2014-12-03 |
Family
ID=50162975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310574645.1A Active CN103612242B (en) | 2013-11-15 | 2013-11-15 | Adjustable EHV (extra high voltage) converter valve water-cooling branch water pipe connector mounting and demounting tool |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103612242B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107275748A (en) * | 2017-07-31 | 2017-10-20 | 成都希塔科技有限公司 | Portable telescopic discone antenna support |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2035689U (en) * | 1988-09-17 | 1989-04-12 | 吴胜国 | Multi-function adjustable wrench |
CN2069336U (en) * | 1989-12-13 | 1991-01-16 | 乔成印 | Adjustable wrench with quick opening and closing jaw |
KR20020060401A (en) * | 2001-01-10 | 2002-07-18 | 안원기 | Multiple Ranch Tool |
US7188553B1 (en) * | 2005-08-26 | 2007-03-13 | Pryor Troy D | Extendable extension and method of use |
-
2013
- 2013-11-15 CN CN201310574645.1A patent/CN103612242B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2035689U (en) * | 1988-09-17 | 1989-04-12 | 吴胜国 | Multi-function adjustable wrench |
CN2069336U (en) * | 1989-12-13 | 1991-01-16 | 乔成印 | Adjustable wrench with quick opening and closing jaw |
KR20020060401A (en) * | 2001-01-10 | 2002-07-18 | 안원기 | Multiple Ranch Tool |
US7188553B1 (en) * | 2005-08-26 | 2007-03-13 | Pryor Troy D | Extendable extension and method of use |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107275748A (en) * | 2017-07-31 | 2017-10-20 | 成都希塔科技有限公司 | Portable telescopic discone antenna support |
Also Published As
Publication number | Publication date |
---|---|
CN103612242B (en) | 2014-12-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204658288U (en) | A kind of bolt clamp device | |
CN103612242B (en) | Adjustable EHV (extra high voltage) converter valve water-cooling branch water pipe connector mounting and demounting tool | |
CN103727313A (en) | Plastic bracket of water dividing and collecting device | |
CN203650428U (en) | Adjustable assembling and disassembling tool for water-cooling branch water pipe connector of EHV (Extra High Voltage) converter valve | |
CN202878182U (en) | Multifunctional socket spanner | |
CN204793845U (en) | Bolt fastening tool | |
CN203380823U (en) | Telescopic rod of socket wrench | |
CN201304621Y (en) | Ratchet spanner used for pipeline connector | |
CN207508754U (en) | Clamping and positioning device | |
CN202622744U (en) | Electric tool convenient to adjust | |
CN203485097U (en) | Stretchable socket spanner connecting rod | |
CN201970229U (en) | Fisheye connector positioning die | |
CN202849881U (en) | Eccentric sleeve compressor | |
CN202219643U (en) | Hand-held type printer bracket width adjustment spanner | |
CN202732607U (en) | Locking screw | |
CN100548500C (en) | A kind of spray gun of adjustable jet angle | |
CN203926296U (en) | Hinged bolt | |
CN209039605U (en) | A kind of directly driven wind-powered stator support Brush Plating device | |
CN209647619U (en) | Machine ram pitch angle adjusts device | |
CN203109898U (en) | Universal air valve clearance adjustment tool | |
CN202646295U (en) | A lathe hand wheel locking screw | |
CN201470907U (en) | Modular lathe tool | |
CN203600202U (en) | Elastic locking handle | |
CN203322299U (en) | Detachable butterfly plate combination | |
CN204413871U (en) | Adjustable Almen test piece stationary fixture |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |