CN112060011B - Narrow position gas meter installation and extracting tool - Google Patents
Narrow position gas meter installation and extracting tool Download PDFInfo
- Publication number
- CN112060011B CN112060011B CN202011060466.2A CN202011060466A CN112060011B CN 112060011 B CN112060011 B CN 112060011B CN 202011060466 A CN202011060466 A CN 202011060466A CN 112060011 B CN112060011 B CN 112060011B
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- 238000009434 installation Methods 0.000 title claims description 22
- 239000007788 liquid Substances 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 210000003781 tooth socket Anatomy 0.000 claims 1
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
-
- 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
- B25B13/58—Jaw attachments
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a narrow-position gas meter mounting and dismounting tool which comprises a handle and a clamping piece, wherein the clamping piece is provided with an opening for clamping a nut head of a gas meter, the handle is clamped with the clamping piece at different angles through a clamping structure, the clamping structure comprises a plurality of first clamping grooves arranged on the clamping piece and first clamping protrusions arranged on the handle and detachably clamped with the first clamping grooves, the first clamping grooves are uniformly distributed on the clamping piece along the circumferential direction, and the tail end of the handle is provided with a C-shaped ring. The invention provides a narrow-position gas meter mounting and dismounting tool which can apply force well in an excessively narrow space.
Description
Technical Field
The invention relates to the technical field of gas meter installation and disassembly, in particular to a narrow-position gas meter installation and disassembly tool.
Background
At present, a pressure reducing valve is generally installed in an electric power system to adjust the pressure of an air outlet, and the installation and the disassembly of the pressure reducing valve become daily work of chemical workers. The gas cylinder requires to be stored in the gas cylinder cabinet, and the pipeline is all connected at the gas meter both ends of gas cylinder, need to install and remove with having the open-ended spanner, often can cause the application of force difficulty because of space narrow scheduling problem in the loading and unloading process, if the opening still can lead to the spanner to be difficult to take off towards the handle just when screwing up, brings multiple inconvenience for dismantling work, has also increased staff's labour.
Disclosure of Invention
Aiming at the prior art, the invention provides a narrow-position gas meter mounting and dismounting tool which can apply force well in an excessively narrow space and is convenient to operate.
The technical scheme of the invention is realized as follows:
narrow position gas table installation and extracting tool, including handle and chucking spare, chucking spare is equipped with and is used for the card to go into the opening that the gas table nut was first, the handle pass through the joint structure with different angles with chucking spare joint, the joint structure is including locating on the first draw-in groove of a plurality of chucking spare with locate the handle with the first card of joint can be dismantled to first draw-in groove is protruding, first draw-in groove is in along the circumferencial direction equipartition on the chucking spare, the handle end is equipped with C shape ring.
Further, the number of the first clamping bulges is at least two.
Further, the cross section of the first clamping protrusion is non-circular, and the number of the first clamping protrusions is at least one.
Further, the chucking spare has the ring of through-hole for the middle part, the outward flange of ring is equipped with first draw-in groove, C the one end of ring with handle end-to-end connection, the ring includes first annular portion and second annular portion, first annular portion is articulated with second annular portion, be equipped with first telescopic link and second telescopic link in the first annular portion, first telescopic link is fixed establishing ties into regular hexagon in proper order, first telescopic link respectively through the second telescopic link with first annular portion connects, the second telescopic link is equipped with locking structure.
Furthermore, the first telescopic rod comprises an I-shaped rod and a U-shaped rod, the U-shaped rod is inserted into grooves in two sides of the I-shaped rod, and the I-shaped rod is connected with the U-shaped rod in a sliding mode.
Furthermore, the second telescopic link is a hydraulic telescopic link, the locking structure comprises a first hydraulic pipe, a second hydraulic pipe, a valve and a liquid storage tank, the hydraulic telescopic link is connected with the first hydraulic pipe in series, the first hydraulic pipe is connected with the liquid storage tank through the second hydraulic pipe, and the second hydraulic pipe is provided with the valve.
Further, second annular portion is equipped with the connecting rod, the connecting rod is equipped with first sprocket, the liquid storage pot includes arc cylinder, piston and arc telescopic link, the arc cylinder is located first annular portion, the piston is located in the arc cylinder, the piston with the arc telescopic link is connected, the arc telescopic link is equipped with the tooth's socket with gear engagement, gear and second sprocket are connected, first sprocket passes through chain drive mechanism and drives the second sprocket rotates.
Further, the arc telescopic link includes arc pole, arc sleeve pipe and spring, arc pole and spring are located in the arc sleeve pipe, spring one end with the arc pole is connected, the other end with arc bushing, first annular portion is equipped with the U-shaped fastener that blocks second annular portion.
Furthermore, the first annular part is further provided with a limiting block, the valve is a pressing valve, the pressing valve is arranged on the limiting block, and the pressing valve is extruded when the second annular part covers the limiting block of the first annular part.
The invention has the beneficial effects that: the handle can be dismantled with chucking spare as force application part and be connected, and chucking spare is equipped with the opening that is used for the card to go into the gas meter nut head, is equipped with first card protrudingly on the handle, and chucking spare is equipped with the first draw-in groove of a plurality of, inserts the draw-in groove with the card on the handle protrudingly in, blocks protrudingly and the draw-in groove chucking for the handle chucking spare can not rotate relatively. Be equipped with the first draw-in groove of a plurality of on chucking spare, first draw-in groove is in the position of difference, and consequently when the first draw-in groove of difference is inserted to first card arch, the contained angle of handle and chucking spare is different, and the staff can adjust the joint angle of handle and chucking spare according to the environment of reality and construction space, even in constrictive space, also can move about the space and carry out the pertinence installation of instrument to carry out the application of force well.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural view of a tool for mounting and dismounting a narrow-gauge gas meter according to embodiment 1 of the present invention;
FIG. 2 is a schematic view showing a use state of a narrow gauge gas meter installation and removal tool according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of a retainer of the narrow gauge gas meter installation and removal tool according to embodiment 2 of the present invention;
FIG. 4 is a schematic structural view of a handle of a narrow gauge gas meter installation and removal tool according to embodiment 2 of the present invention;
fig. 5 is a schematic structural view of a first telescopic rod of the tool for mounting and dismounting a narrow-position gas meter according to embodiment 2 of the invention;
in the figure, 1 handle, 2 clamping piece, 3 opening, 4 first clamping groove, 5 first clamping protrusion, 6C-shaped ring, 7 first clamping groove, 8 first annular part, 9 second annular part, 10 first telescopic rod, 11 second telescopic rod, 12I-shaped rod, 13U-shaped rod, 14 first hydraulic pipe, 15 second hydraulic pipe, 16 valve, 17 liquid storage tank, 18 first chain wheel, 19 connecting rod, 20 arc cylinder, 21 piston, 22 arc telescopic rod, 23 tooth space, 24 gear, 25 second chain wheel, 26 chain transmission mechanism, 27 arc rod, 28 arc sleeve, 29 spring, 30U-shaped clamping piece and 31 limiting block.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Example 1
Referring to fig. 1 ~ 2, narrow position gas meter installation and extracting tool, including handle 1 and chucking spare 2, chucking spare 2 is equipped with the opening 3 that is used for the card to go into the gas meter nut head, handle 1 through clamping structure with different angles with chucking spare 2 joint, clamping structure is including locating on the first draw-in groove 4 of a plurality of chucking spare 2 with locate handle 1 with the first protruding 5 of card of joint can be dismantled to first draw-in groove 4, first draw-in groove 4 is in along the circumferencial direction equipartition on chucking spare 2, but insert different first draw-in groove 4 and fixed handle 1 and chucking spare 2 different angles, handle 1 end is equipped with C and encircles ring 6, and C encircles ring 6 and is convenient for first protruding 5 of card and aligns first recess.
The prefabricated one set of chucking spare 2 is applicable to a plurality of models of various model steel bottle gas ports, installs the chucking spare 2 of suitable model on handle 1 according to the on-the-spot condition, can be applicable to including 4 liters, 8 liters, the work is installed and removed to the gas table of gas cylinders such as 10 liters machine 40 liters, only need according to actual gas cylinder interface model, change in real time can, screw position in other dismantlement ranges also can be applicable. The material of handle 1 uses light metal material to make, can make things convenient for the staff to go out to carry, high durability and convenient operation, effectively improve the convenience of actual construction, it can be with handle 1 and 2 separation of chucking spare and according to the activity buckle spanner of actual conditions concatenation, can carry out the position transform installation according to actual environment and construction space, and have the commonality, be applicable to various gas meter interfaces and include 4 liters, 8 liters, the work is installed and removed to the gas meter of gas cylinders such as 10 liters machine 40 liters, even if in constrictive space, also can dismantle work fast.
When the clamping device is used, the clamping device 2 is clamped into the hexagonal end of the gas meter connector, the handle 1 is inserted, and the first clamping protrusion 5 of the handle 1 is inserted into the corresponding first clamping groove 4 of the clamping device 2. Handle 1 rotates, takes out handle 1 after the commentaries on classics spanner rotates extreme position, in the first draw-in groove 4 of 2 suitable positions of reinsertion chucking spare after adjusting handle 1's position, again after the rotatory operating handle 1, until the gas table is dismantled or the installation is accomplished, the operation is very convenient.
Specifically, the number of the first jamming protrusions 5 is at least two. Two first card are protruding 5 and are inserted in first draw-in groove 4, and handle 1 can not rotate by chucking spare 2 relatively, improves the chucking effect.
Optionally, the cross section of the first snap projection 5 is non-circular, and the number of the first snap projections 5 is at least one. In order to improve the clamping effect, the cross section of the first clamping protrusion 5 may be non-circular, and when the cross section is non-circular, only one first clamping protrusion 5 may be provided. After the first click projection 5 is inserted into the first click slot 4, the first click projection 5 cannot rotate within the first click slot 4. Such as square, etc. Preferably, the first locking groove 4 is a waist-shaped hole, and the first locking protrusion 5 is matched with the waist-shaped hole.
Example 2
Referring to fig. 3 to 5, the present embodiment is different from embodiment 1 in that the clamping member 2 is a circular ring with a through hole in the middle, the first clamping groove 4 is formed in the outer edge of the circular ring, one end of the C-shaped ring 6 is connected to the end of the handle 1, the circular ring includes a first annular portion 8 and a second annular portion 9, the first annular portion 8 is hinged to the second annular portion 9, a first telescopic rod 10 and a second telescopic rod 11 are arranged in the first annular portion 8, the first telescopic rods 10 are sequentially and fixedly connected in series to form a regular hexagon, the first telescopic rods 10 are respectively connected to the first annular portion 8 through the second telescopic rods 11, and the second telescopic rods 11 are provided with a locking structure.
The ring includes first annular portion 8 and second annular portion 9, and first annular portion 8 is equipped with opening 3 so can block into the gas meter nut head, and second annular portion 9 seals opening 3 with first annular portion 8 lid after closing. The middle part of ring has the through-hole, is equipped with first telescopic link 10 and second telescopic link 11 in the through-hole, and first telescopic link 10 establishes ties in proper order and encloses into regular hexagon, and is optional, and the quantity of first telescopic link 10 is 4 ~ 5, and the regular hexagon who encloses has the breach, and the card of being convenient for goes into the gas meter nut head. One end and the 8 fixed connection of first annular portion of second telescopic link 11, the other end and the 10 fixed connection of first telescopic link promote first telescopic link 10 when 11 extensions of second telescopic link and reduce to regular hexagon's center, stimulate first telescopic link 10 extension when 11 shortens of second telescopic link to the size of the regular hexagon that the regulation encloses. The first telescopic link 10 is stretched and clamped into the head of the gas meter nut, then the first telescopic link 10 is shrunk and clamped with the head of the gas meter nut, and then the second telescopic link 11 is locked by the locking structure, so that the effect of locking the head of the gas meter nut is achieved. C the one end of ring 6 with 1 end-to-end connection of handle makes the end of handle 1 form the hook, catches on the pipeline of gas meter nut head side with the hook after that, and in first draw-in groove 4 was gone into to first lug card, promote the ring and rotate when turning handle 1 to reach the purpose of installation and dismantlement gas meter head. After being screwed, the opening 3 of the first annular part 8 faces the direction, and the clamping part 2 can be taken down from the gas meter nut head after the handle 1 is separated from the clamping part 2, so that the situation that the clamping part cannot be taken out when being screwed at certain angle positions is avoided.
Specifically, the first telescopic rod 10 comprises an I-shaped rod 12 and a U-shaped rod 13, the U-shaped rod 13 is inserted into grooves on two sides of the I-shaped rod, and the I-shaped rod 12 is connected with the U-shaped rod 13 in a sliding mode. The surfaces of the I-shaped rod 12 and the U-shaped rod 13 are level, the contact area between the first telescopic rod 10 and the head of the gas meter nut is increased, and the head of the gas meter nut is not easily damaged in the screwing and disassembling processes.
Specifically, the second telescopic rod 11 is a hydraulic telescopic rod, the locking structure comprises a first hydraulic pipe 14, a second hydraulic pipe 15, a valve 16 and a liquid storage tank 17, the hydraulic telescopic rod is connected in series with the first hydraulic pipe 14, the first hydraulic pipe 14 is connected with the liquid storage tank 17 through the second hydraulic pipe 15, and the second hydraulic pipe 15 is provided with the valve 16. Hydraulic telescoping rod passes through first hydraulic pressure pipe 14 interconnect for pressure in the hydraulic telescoping rod equals, and at the in-process of screwing up, makes first telescopic link 10 the same with the first extrusion power of gas meter nut, and gas meter nut head atress is balanced, is difficult for impairedly at the in-process of installation and dismantlement. The first hydraulic pipe 14 is communicated with the liquid storage tank 17 through the second hydraulic pipe 15, when the second telescopic rod 11 is shortened, hydraulic oil is extruded into the liquid storage tank 17, when the second telescopic rod 11 is extended, the hydraulic oil in the liquid storage tank 17 is filled into the second telescopic rod 11, and after the valve 16 is closed, the flow of the hydraulic oil can be blocked, so that the length of the second telescopic rod 11 is fixed.
Specifically, second annular portion 9 is equipped with connecting rod 19, connecting rod 19 is equipped with first sprocket 18, liquid storage pot 17 includes arc cylinder 20, piston 21 and arc telescopic link 22, arc cylinder 20 is located first annular portion 8, piston 21 is located in the arc cylinder 20, piston 21 with arc telescopic link 22 is connected, arc telescopic link 22 is equipped with tooth's socket 23 with the meshing of gear 24, gear 24 and second sprocket 25 are connected, first sprocket 18 passes through chain drive 26 and drives second sprocket 25 rotates. Second annular portion 9 drives first sprocket 18 when rotating and rotates, first sprocket 18 drives second sprocket 25 through sprocket slewing mechanism when rotating and rotates, and is optional, first sprocket 18 drives second sprocket 25 through the chain and rotates, or first sprocket 18 drives the cone pulley through the chain and rotates, and the cone pulley drives second sprocket 25 through the chain again and rotates, improves the rotational speed and the turned angle of second sprocket 25, and is optional, can set up the idler in sprocket transmission mechanism for change the rotation direction. When the second chain wheel 25 rotates, the gear 24 is driven to rotate, the gear 24 is meshed with the tooth groove 23 of the arc-shaped telescopic rod 22, so that the arc-shaped telescopic rod 22 is driven to push the piston 21 to move, hydraulic oil in the arc-shaped cylinder 20 is extruded into the second telescopic rod 11, or hydraulic oil in the second telescopic rod 11 is pumped to the arc-shaped cylinder 20. After the second telescopic rod 11 stretches and contracts to reach the limit value, the arc-shaped telescopic rod 22 stretches and contracts, and hydraulic oil is not squeezed into the second telescopic rod 11.
Specifically, arc telescopic link 22 includes arc pole 27, arc sleeve pipe 28 and spring 29, arc pole 27 and spring 29 are located in the arc sleeve pipe 28, spring 29 one end with arc pole 27 is connected, the other end with arc sleeve pipe 28 is connected, first annular portion 8 is equipped with the U-shaped fastener 30 that blocks second annular portion 9. The spring 29 pushes the arc rod 27 out of the arc sleeve 28, and the arc rod 27 can extend into the arc sleeve 28 to adjust the length of the arc rod. The tooth grooves 23 of the arc-shaped telescopic rod 22 are arranged on the arc-shaped sleeve 28 to drive the arc-shaped telescopic rod 22 to move. After the second annular part 9 is covered on the first annular part 8, the second annular part 9 is clamped by the U-shaped clamping piece 30, and the second annular part 9 is prevented from bouncing up.
Specifically, the first annular portion 8 is further provided with a limit block 31, the valve 16 is a pressing valve, the pressing valve is arranged on the limit block 31, and the pressing valve is pressed when the second annular portion 9 covers the limit block 31 of the first annular portion 8. The pressing valve can be closed after the second annular part 9 is covered, and the operation is simple. Stopper 31 prevents second annular portion 9 from compressing inwardly upon being squeezed by handle 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. Narrow position gas meter installation and extracting tool, its characterized in that, including handle and chucking spare, the chucking spare is equipped with the opening that is used for the card to go into the nut head, the handle pass through the joint structure with different angles with chucking spare joint, the joint structure including locate the first draw-in groove of a plurality of chucking spare with locate on the handle with the first card that the joint can be dismantled to first draw-in groove is protruding, first draw-in groove along the circumferencial direction equipartition on the chucking spare, the handle end is equipped with C ring, the chucking spare has the ring of through-hole for the middle part, the outward flange of ring is equipped with first draw-in groove, the one end of C ring with handle end-to-end connection, the ring includes first annular portion and second annular portion, first annular portion is articulated with the second annular portion, be equipped with first telescopic link and second telescopic link in the first annular portion, the first telescopic links are sequentially and fixedly connected in series to form a regular hexagon, the first telescopic links are connected with the first annular part through second telescopic links respectively, and the second telescopic links are provided with locking structures.
2. The narrow air gauge installation and removal tool of claim 1, wherein the number of first tabs is at least two.
3. The narrow gas meter installation and removal tool of claim 1, wherein the first tabs are non-circular in cross-section and the number of first tabs is at least one.
4. The narrow gas meter installation and removal tool of claim 1, wherein the first telescoping rod comprises a "h" shaped rod and a "U" shaped rod, the "U" shaped rod is inserted into grooves on both sides of the "h" shaped rod, and the "h" shaped rod and the "U" shaped rod are slidably connected.
5. The narrow-level gas meter mounting and dismounting tool according to claim 1, wherein the second telescopic rod is a hydraulic telescopic rod, the locking structure comprises a first hydraulic pipe, a second hydraulic pipe, a valve and a liquid storage tank, the hydraulic telescopic rods are connected in series with each other through the first hydraulic pipe, the first hydraulic pipe is connected with the liquid storage tank through the second hydraulic pipe, and the valve is arranged on the second hydraulic pipe.
6. The narrow gas meter installation and removal tool as claimed in claim 5, wherein the second annular portion is provided with a connecting rod, the connecting rod is provided with a first chain wheel, the liquid storage tank comprises an arc-shaped cylinder, a piston and an arc-shaped telescopic rod, the arc-shaped cylinder is arranged in the first annular portion, the piston is arranged in the arc-shaped cylinder, the piston is connected with the arc-shaped telescopic rod, the arc-shaped telescopic rod is provided with a tooth socket meshed with a gear, the gear is connected with a second chain wheel, and the first chain wheel drives the second chain wheel to rotate through a chain transmission mechanism.
7. The narrow gas meter installation and removal tool of claim 6, wherein the arc-shaped telescoping rod comprises an arc-shaped rod, an arc-shaped sleeve and a spring, the arc-shaped rod and the spring are arranged in the arc-shaped sleeve, one end of the spring is connected with the arc-shaped rod, the other end of the spring is connected with the arc-shaped sleeve, and the first annular portion is provided with a U-shaped clamping piece for clamping the second annular portion.
8. The tool for installing and disassembling the narrow gas meter according to claim 5, wherein the first annular portion further comprises a stopper, the valve is a pressing valve, the pressing valve is disposed on the stopper, and the second annular portion presses the pressing valve when covering the stopper of the first annular portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011060466.2A CN112060011B (en) | 2020-09-30 | 2020-09-30 | Narrow position gas meter installation and extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011060466.2A CN112060011B (en) | 2020-09-30 | 2020-09-30 | Narrow position gas meter installation and extracting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112060011A CN112060011A (en) | 2020-12-11 |
| CN112060011B true CN112060011B (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011060466.2A Active CN112060011B (en) | 2020-09-30 | 2020-09-30 | Narrow position gas meter installation and extracting tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN112060011B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975847B (en) * | 2021-02-23 | 2022-06-21 | 沧州德安防爆特种工具制造有限公司 | Multifunctional pipe tongs |
| CN113043214B (en) * | 2021-04-06 | 2023-05-12 | 宁夏弘茂特种设备检验检测有限公司 | Respiration gas cylinder loading and unloading valve machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030529U (en) * | 1988-05-23 | 1989-01-11 | 白崇岫 | Adjustable spanner |
| CN201158016Y (en) * | 2008-02-13 | 2008-12-03 | 黎可乾 | Multifunctional universal hexagonal movable open spanner |
| CN201604104U (en) * | 2009-10-23 | 2010-10-13 | 大庆石油管理局 | Open-ended ratchet wheel wrench |
| CN203566579U (en) * | 2013-11-13 | 2014-04-30 | 唐颖捷 | Combination wrench |
| CN104626020A (en) * | 2014-12-31 | 2015-05-20 | 宁波工程学院 | Opening size adjustable spanner |
| CN206048089U (en) * | 2016-08-31 | 2017-03-29 | 中国人民解放军第五七二一工厂 | A kind of narrow space hexagonal union nut dismantling device |
| CN206084883U (en) * | 2016-07-27 | 2017-04-12 | 王佳丽 | Spanner that can be used to narrow space |
| CN107511784A (en) * | 2016-06-16 | 2017-12-26 | 中冶宝钢技术服务有限公司 | A kind of adjustable-angle special spanner for small space |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2686026C (en) * | 2009-11-18 | 2014-01-07 | Robert John Terence Wojick | Self-clamping wrench |
-
2020
- 2020-09-30 CN CN202011060466.2A patent/CN112060011B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030529U (en) * | 1988-05-23 | 1989-01-11 | 白崇岫 | Adjustable spanner |
| CN201158016Y (en) * | 2008-02-13 | 2008-12-03 | 黎可乾 | Multifunctional universal hexagonal movable open spanner |
| CN201604104U (en) * | 2009-10-23 | 2010-10-13 | 大庆石油管理局 | Open-ended ratchet wheel wrench |
| CN203566579U (en) * | 2013-11-13 | 2014-04-30 | 唐颖捷 | Combination wrench |
| CN104626020A (en) * | 2014-12-31 | 2015-05-20 | 宁波工程学院 | Opening size adjustable spanner |
| CN107511784A (en) * | 2016-06-16 | 2017-12-26 | 中冶宝钢技术服务有限公司 | A kind of adjustable-angle special spanner for small space |
| CN206084883U (en) * | 2016-07-27 | 2017-04-12 | 王佳丽 | Spanner that can be used to narrow space |
| CN206048089U (en) * | 2016-08-31 | 2017-03-29 | 中国人民解放军第五七二一工厂 | A kind of narrow space hexagonal union nut dismantling device |
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| Publication number | Publication date |
|---|---|
| CN112060011A (en) | 2020-12-11 |
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