CN208340521U - A kind of laser gas mixing arrangement - Google Patents
A kind of laser gas mixing arrangement Download PDFInfo
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- CN208340521U CN208340521U CN201820739020.4U CN201820739020U CN208340521U CN 208340521 U CN208340521 U CN 208340521U CN 201820739020 U CN201820739020 U CN 201820739020U CN 208340521 U CN208340521 U CN 208340521U
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- multiple groups
- bottom end
- ball bearing
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Abstract
The utility model relates to the technical fields of laser auxiliary equipment, more particularly to a kind of laser gas mixing arrangement, it can be handled the foreign gas in blending tank, avoid consume of the foreign gas to laser output power on mirror and motor, guarantee the stability of Laser emission, improves use reliability；And the uniformity to mixed gas is improved, guarantees the stability of Laser emission, improves practicability；Including pedestal, four groups of pillars, support plate, the pure gas tank of multiple groups and blending tank, blending tank is internally provided with mixing chamber, the top of the pure gas tank of multiple groups is provided with appendix, and it is provided with gas valve and gas flow meter on multiple groups appendix, it further include aspiration pump, sealed tube body, the first threaded rod, the first screwed pipe, sealing rubber ring, mounting plate, drying stick, exhaust tube, check valve, sealing plate, upper ball bearing, position limiting slide block, left supported plate, right supported plate, left rotary shaft, right spindle, left ball bearing, right ball bearing and handle.
Description
Technical field
The utility model relates to the technical fields of laser auxiliary equipment, mix and fill more particularly to a kind of laser gas
It sets.
Background technique
It is well known that gas laser generates the device of laser using gas as operation material, it is by discharge tube
Three major part compositions such as resonant cavity and driving source for activating gas, a pair of of reflecting mirror to constitute, main energisation mode have electric shock
It encourages, air-operated drive, light stimulus and chemical pumping etc., wherein electric excitation mode is the most frequently used, under appropriate discharging condition, utilizes electronics
Collision excitation and energy transfer excitation etc., gas particle is selectively excited on certain high level, to be formed low with certain
Population inversion between energy level, generates stimulated emission transition, and laser gas mixing arrangement is a kind of for mentioning to gas laser
For activating the auxiliary device of gas, it is widely used in a variety of applications in the field of work piece cut processing, medicine detection etc.；It is existing
Laser gas mixing arrangement include pedestal, four groups of pillars, support plate, the pure gas tank of multiple groups and blending tank, the bottom end of four groups of pillars
Connect respectively with the front left side on pedestal top, right lateral side, forward right side and right lateral side, the top of four groups of pillars respectively with support plate bottom
Front left side, left rear side, the forward right side at end are connected with right lateral side, and blending tank is placed on the top of support plate, and in blending tank
Portion is provided with mixing chamber, and the pure gas tank of multiple groups is placed on the top of pedestal, and is provided with appendix on the top of the pure gas tank of multiple groups,
The output end of multiple groups appendix is connected to blending tank, and is provided with gas valve and gas flow meter on multiple groups appendix；
Existing laser gas mixing arrangement in use, open corresponding gas valve, the gas in pure gas tank by appendix convey into
It is mixed, is controlled by conveying capacity of the gas meter to gas with various, the mixed gas in mixing chamber in mixing chamber
Activation gas is provided for laser；It is found in existing laser gas mixing arrangement use, component gas in gaseous mixture in mixing chamber
Purity directly affect the performance of laser, it is defeated to will lead to laser for the presence of the impurity such as oxygen, water, hydrocarbon especially in gas
Consume of the power on mirror and electrode out can also cause the unstable of Laser emission, and blending tank uses more long, and internal is miscellaneous
Matter ingredient is more, and it is inconvenient to remove the foreign gas in blending tank, causes use reliability lower；And it is to gas
Mixed effect is poor, and the gas concentration in mixing chamber is uneven, equally will affect the stability of Laser emission, cause practicability compared with
It is low.
Utility model content
In order to solve the above technical problems, the utility model provide it is a kind of can be to the foreign gas in blending tank at
Reason, avoids consume of the foreign gas to laser output power on mirror and motor, guarantees the stability of Laser emission, improves and uses
Reliability；And the uniformity to mixed gas is improved, guarantees the stability of Laser emission, the laser gas for improving practicability is mixed
It attaches together and sets.
A kind of laser gas mixing arrangement of the utility model, including pedestal, four groups of pillars, support plate, the pure gas tank of multiple groups
And blending tank, the bottom end of four groups of pillars are connect with the front left side on pedestal top, forward right side, left rear side and right lateral side respectively, four groups
The top of pillar is connect with the front left side of support plate bottom end, forward right side, left rear side and right lateral side respectively, the inside setting of blending tank
There is mixing chamber, the pure gas tank of multiple groups is placed in the top of pedestal, and is provided with appendix on the top of the pure gas tank of multiple groups, and multiple groups are defeated
The output end of tracheae is connected to blending tank, and is provided with gas valve and gas flow meter on multiple groups appendix；Further include
Aspiration pump, sealed tube body, the first threaded rod, the first screwed pipe, sealing rubber ring, mounting plate and drying stick, the aspiration pump installation
On the top of support plate, the input terminal of aspiration pump is provided with exhaust tube, and the input terminal of the exhaust tube is stretched from the top of blending tank
Enter to mixing chamber, and be provided with check valve on exhaust tube, the bottom end of the sealed tube body is stretched to from the top of blending tank
In mixing chamber, and the top of sealed tube body is provided with sealing plate, installation through-hole, the peace are provided in the middle part of the sealing plate
It is fixedly installed with upper ball bearing in dress through-hole, the top of the bottom end self-sealing plate of first screwed pipe sequentially passes through ball
Bearing and sealing rubber ring stretch in sealed tube body, and the bottom that simultaneously spiral shell is filled to the first screwed pipe is inserted on the top of first threaded rod
End is internal, and the bottom end of the first threaded rod and the top middle portion of mounting plate connect, the lateral wall of the mounting plate and sealed tube body
Inner sidewall contact, the left end of sealed tube body inner sidewall and right end are provided with the limiting slot of vertical direction, the left end of mounting plate and
Right end is provided with position limiting slide block, and two groups of position limiting slide blocks are located in two groups of limiting slots, and the drying stick is mounted on
The bottom end of loading board；Further include left supported plate, right supported plate, left rotary shaft and right spindle, the bottom end of the left supported plate and right supported plate respectively with
The left and right side on support plate top connects, and placing groove is provided in the middle part of the right end of left supported plate, fixed in the placing groove
Left ball bearing is installed, is connected in the middle part of the right end of the left rotary shaft and the left end of blending tank, the left end of left rotary shaft is from left supported plate
Right end be inserted into the pearl Bearing inner that rolls left, the through-hole of left and right perforation is provided in the middle part of right supported plate, and the fixed peace in through-hole
Equipped with right ball bearing, the left end of the right spindle passes through in right ball bearing and right end with blending tank from the right end of right supported plate
Portion's connection, and the right end of right spindle is provided with handle.
A kind of laser gas mixing arrangement of the utility model, further includes retaining ring, the second threaded rod and the second screwed pipe,
The retaining ring is set in the outside of left rotary shaft, and the internal diameter of retaining ring is greater than the diameter of left rotary shaft, the top of the support plate
End left side is provided with placing groove, and lower ball bearing is fixedly installed in placing groove, and the bottom end of second screwed pipe is propped up certainly
The top of fagging is inserted into inside lower ball bearing, and the top of second threaded rod is fixedly connected with the bottom end of retaining ring, the
Simultaneously spiral shell is filled to inside the top of the second screwed pipe for the bottom end insertion of two threaded rods.
A kind of laser gas mixing arrangement of the utility model, the top of the blending tank is provided with mixed gas delivery
Pipe, and switch valve is provided on mixed gas delivery pipe.
A kind of laser gas mixing arrangement of the utility model further includes rear plate and front plate, the bottom of the rear plate
End is fixedly connected with the top of pedestal, and the front end of rear plate is provided with multiple groups rear semicircle fixing groove, a left side for the front plate
It holds and is connected by a hinge at the top of the left end with rear plate, be connected by a hinge at the top of the right end of front plate and the right end of rear plate,
And the semicircle fixing groove before the rear end of front plate is provided with multiple groups, semicircle fixing groove is solid with multiple groups rear semicircle respectively before the multiple groups
Determine slot correspondence, the pure gas tank of multiple groups is located at before multiple groups between semicircle fixing groove and multiple groups rear semicircle fixing groove.
A kind of laser gas mixing arrangement of the utility model, the bottom end of the pedestal is provided with pulley blocks.
Compared with prior art the utility model has the following beneficial effects: before blending tank use or after use, lead to
It crosses and can be manually rotated the first screwed pipe, so that mounting plate and drying stick is moved down and is stretched in mixing chamber, then pass through aspiration pump
By the gas extraction in mixing chamber, the foreign gas in mixing chamber is removed, then mixing chamber is dried by drying stick, is led to
The cooperation for crossing position limiting slide block and limiting slot guarantees that mounting plate can move up and down in seal pipe, can be to the impurity in blending tank
Gas is handled, and is avoided consume of the foreign gas to laser output power on mirror and motor, is guaranteed the stabilization of Laser emission
Property, improve use reliability；It drives right spindle to be rotated by 90 ° by rotating handles, then reversely rotates handle and drive right spindle rotation
Turn 180 °, right spindle drives reciprocating rotation before and after blending tank, is sufficiently mixed the gas in mixing chamber, improves to mixed gas
Uniformity guarantees the stability of Laser emission, improves practicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the overlooking structure diagram that the utility model front plate is connected with rear plate；
It is attached marked in the figure: 1, pedestal；2, pillar；3, support plate；4, pure gas tank；5, blending tank；6, appendix；7, gas transmission
Valve；8, gas flow meter；9, aspiration pump；10, sealed tube body；11, the first threaded rod；12, the first screwed pipe；13, sealing rubber ring；
14, mounting plate；15, stick is dried；16, exhaust tube；17, sealing plate；18, upper ball bearing；19, limiting slot；20, position limiting slide block；
21, left supported plate；22, right supported plate；23, left rotary shaft；24, right spindle；25, left ball bearing；26, right ball bearing；27, handle；
28, retaining ring；29, the second threaded rod；30, the second screwed pipe；31, lower ball bearing；32, air shooter；33, rear plate；
34, front plate；35, semicircle fixing groove；36, preceding semicircle fixing groove；37, pulley blocks.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
As shown in Figure 1 to Figure 2, a kind of laser gas mixing arrangement of the utility model, including 1, four group of pillar 2 of pedestal,
The pure gas tank 4 of support plate 3, multiple groups and blending tank 5, the bottom end of four groups of pillars respectively with the front left side on pedestal top, forward right side, left back
Side is connected with right lateral side, and the top of four groups of pillars connects with the front left side of support plate bottom end, forward right side, left rear side and right lateral side respectively
It connects, blending tank is internally provided with mixing chamber, and the pure gas tank of multiple groups is placed in the top of pedestal, and equal on the top of the pure gas tank of multiple groups
It is provided with appendix 6, the output end of multiple groups appendix is connected to blending tank, and is provided with gas valve on multiple groups appendix
7 and gas flow meter 8；Further include aspiration pump 9, sealed tube body 10, the first threaded rod 11, the first screwed pipe 12, sealing rubber ring 13,
Mounting plate 14 and drying stick 15, aspiration pump are mounted on the top of support plate, and the input terminal of aspiration pump is provided with exhaust tube 16, pumping
The input terminal of pipe stretches in mixing chamber from the top of blending tank, and check valve is provided on exhaust tube, the bottom of sealed tube body
End stretches in mixing chamber from the top of blending tank, and the top of sealed tube body is provided with sealing plate 17, the middle part of sealing plate
It is provided with installation through-hole, upper ball bearing 18, the top of the bottom end self-sealing plate of the first screwed pipe are fixedly installed in installation through-hole
End sequentially passes through upper ball bearing and sealing rubber ring stretches in sealed tube body, and the top insertion of the first threaded rod and spiral shell are filled to the
The top middle portion of the bottom inner portion of one screwed pipe, the bottom end of the first threaded rod and mounting plate connects, the lateral wall of mounting plate with it is close
The inner sidewall contact of tube sealing body, the left end of sealed tube body inner sidewall and right end are provided with the limiting slot 19 of vertical direction, installation
The left end of plate and right end are provided with position limiting slide block 20, and two groups of position limiting slide blocks are located in two groups of limiting slots, drying stick installation
In the bottom end of mounting plate；It further include left supported plate 21, right supported plate 22, left rotary shaft 23 and right spindle 24, the bottom of left supported plate and right supported plate
End is connect with the left and right side on support plate top respectively, and placing groove is provided in the middle part of the right end of left supported plate, in placing groove
It is fixedly installed with left ball bearing 25, is connected in the middle part of the right end of left rotary shaft and the left end of blending tank, the left end of left rotary shaft is from left branch
The right end of plate is inserted into the pearl Bearing inner that rolls left, and the through-hole of left and right perforation is provided in the middle part of right supported plate, and fixed in through-hole
Right ball bearing 26 is installed, the left end of right spindle passes through in right ball bearing and right end with blending tank from the right end of right supported plate
Portion's connection, and the right end of right spindle is provided with handle 27；Before blending tank use or after use, by can be manually rotated
First screwed pipe makes mounting plate and drying stick move down and stretch in mixing chamber, then will be in mixing chamber by aspiration pump
Gas extraction, remove mixing chamber in foreign gas, then by drying stick mixing chamber is dried, pass through position limiting slide block
Guarantee that mounting plate can move up and down in seal pipe with the cooperation of limiting slot, can be to the foreign gas in blending tank at
Reason, avoids consume of the foreign gas to laser output power on mirror and motor, guarantees the stability of Laser emission, improves and uses
Reliability；It drives right spindle to be rotated by 90 ° by rotating handles, then reversely rotates handle and right spindle is driven to rotate 180 °, turn right
Axis drives reciprocating rotation before and after blending tank, is sufficiently mixed the gas in mixing chamber, improves the uniformity to mixed gas, guarantees
The stability of Laser emission improves practicability.
A kind of laser gas mixing arrangement of the utility model further includes retaining ring 28, the second threaded rod 29 and the second spiral shell
Line pipe 30, retaining ring is set in the outside of left rotary shaft, and the internal diameter of retaining ring is greater than the diameter of left rotary shaft, the top of support plate
Left side is provided with placing groove, and lower ball bearing 31 is fixedly installed in placing groove, the bottom end self-supporting slab of the second screwed pipe
Top be inserted into inside lower ball bearing, the top of the second threaded rod is fixedly connected with the bottom end of retaining ring, the second threaded rod
Bottom end insertion and spiral shell be filled to inside the top of the second screwed pipe；By can be manually rotated the second screwed pipe, make retaining ring upwards or
Person moves down, and the inner sidewall of retaining ring and the lateral wall of left rotary shaft are adjacent to, so that left rotary shaft be fixed, mixes when improving work
The stability of tank.
A kind of laser gas mixing arrangement of the utility model, the top of blending tank are provided with mixed gas delivery pipe 32,
And switch valve is provided on mixed gas delivery pipe；Activation gas is provided by mixed gas delivery pipe for laser.
A kind of laser gas mixing arrangement of the utility model further includes rear plate 33 and front plate 34, the bottom of rear plate
End is fixedly connected with the top of pedestal, and the front end of rear plate is provided with multiple groups rear semicircle fixing groove 35, the left end of front plate
It is connected by a hinge at the top of the left end of rear plate, is connected by a hinge at the top of the right end of front plate and the right end of rear plate, and
The semicircle fixing groove 36 before the rear end of front plate is provided with multiple groups, before multiple groups semicircle fixing groove respectively with multiple groups rear semicircle fixing groove
Correspondence, the pure gas tank of multiple groups are located at before multiple groups between semicircle fixing groove and multiple groups rear semicircle fixing groove；By by pure gas
Tank is fixed between rear semicircle fixing groove and preceding semicircle fixing groove, improves the fixed effect to pure gas tank, and front plate is with after
Clamping plate is easy to open by hinge and buckle, convenient to replace to pure gas tank, improves use reliability.
A kind of laser gas mixing arrangement of the utility model, the bottom end of pedestal is provided with pulley blocks 37；Pass through pulley blocks
It is convenient that its entirety is moved, improve use reliability.
A kind of laser gas mixing arrangement of the utility model before completing above-mentioned movement, first will at work
Its position for being moved to user's needs before blending tank use or after use, by can be manually rotated the second screwed pipe, is adjusted
The fixation that the position of section retaining ring is released to left rotary shaft makes mounting plate and drying then by can be manually rotated the first screwed pipe
Stick, which moves down, to be stretched in mixing chamber, is then extracted out the gas in mixing chamber by aspiration pump, is removed miscellaneous in mixing chamber
Then matter gas dries mixing chamber by drying stick, guarantee that mounting plate can by the cooperation of position limiting slide block and limiting slot
To be moved up and down in seal pipe, the foreign gas in blending tank can be handled, foreign gas is avoided to export laser
Consume of the power on mirror and motor guarantees the stability of Laser emission, improves use reliability, then rotates the first screwed pipe
Drying stick is withdrawn in seal pipe, opens corresponding gas valve, the gas in pure gas tank is conveyed by appendix into mixing chamber
It being mixed, is controlled by conveying capacity of the gas meter to gas with various, by can be manually rotated the second screwed pipe, being adjusted
The position of retaining ring releases the fixation to left rotary shaft, then drives right spindle to be rotated by 90 ° by rotating handles, then reversely rotates
Handle drives right spindle to rotate 180 °, and right spindle drives reciprocating rotation before and after blending tank, is sufficiently mixed the gas in mixing chamber,
The uniformity to mixed gas is improved, guarantees the stability of Laser emission, practicability is improved, is sharp by mixed gas delivery pipe
Light device provides activation gas.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into modification.
Claims (5)
1. a kind of laser gas mixing arrangement, including pedestal (1), four groups of pillars (2), support plate (3), the pure gas tank of multiple groups (4) and
Blending tank (5), the bottom end of four groups of pillars (2) connect with the front left side on pedestal (1) top, forward right side, left rear side and right lateral side respectively
It connects, the top of four groups of pillars (2) is connect with the front left side, forward right side, left rear side and right lateral side of support plate (3) bottom end respectively, is mixed
That closes tank (5) is internally provided with mixing chamber, and the pure gas tank of multiple groups (4) is placed in the top of pedestal (1), and in the pure gas tank of multiple groups (4)
Top be provided with appendix (6), the output end of multiple groups appendix (6) is connected to blending tank (5), and in multiple groups appendix
(6) gas valve (7) and gas flow meter (8) are provided on；It is characterized in that, further including aspiration pump (9), sealed tube body
(10), the first threaded rod (11), the first screwed pipe, sealing rubber ring (13), mounting plate (14) and drying stick (15), the aspiration pump
(9) be mounted on the top of support plate (3), the input terminal of aspiration pump (9) is provided with exhaust tube (16), the exhaust tube (16) it is defeated
Enter end to stretch in mixing chamber from the top of blending tank (5), and is provided with check valve, the sealed tube body on exhaust tube (16)
(10) top of bottom end from blending tank (5) stretches in mixing chamber, and the top of sealed tube body (10) is provided with sealing plate
(17), it is provided with installation through-hole in the middle part of the sealing plate (17), is fixedly installed with upper ball bearing in the installation through-hole
(18), the top of the bottom end self-sealing plate (17) of first screwed pipe sequentially passes through upper ball bearing (18) and sealing rubber ring
(13) it stretches in sealed tube body (10), the bottom end that simultaneously spiral shell is filled to the first screwed pipe is inserted on the top of first threaded rod (11)
The bottom end of inside, the first threaded rod (11) is connect with the top middle portion of mounting plate (14), the lateral wall of the mounting plate (14) with
The inner sidewall contact of sealed tube body (10), the left end of sealed tube body (10) inner sidewall and right end are provided with the limit of vertical direction
Slot (19), the left end of mounting plate (14) and right end are provided with position limiting slide block (20), two groups of position limiting slide blocks (20) difference position
In two groups of limiting slots (19), drying stick (15) is mounted on the bottom end of mounting plate (14)；It further include left supported plate (21), right branch
The bottom end of plate (22), left rotary shaft (23) and right spindle (24), the left supported plate (21) and right supported plate (22) respectively with support plate (3)
The left and right side on top connects, and placing groove is provided in the middle part of the right end of left supported plate (21), fixed peace in the placing groove
Equipped with left ball bearing (25), it is connect in the middle part of the right end of the left rotary shaft (23) and the left end of blending tank (5), left rotary shaft (23)
The right end of left end from left supported plate (21) is inserted into left ball bearing (25) inside, and left and right perforation is provided in the middle part of right supported plate (22)
Through-hole, and right ball bearing (26) are fixedly installed in through-hole, the left end of the right spindle (24) is from right supported plate (22)
Right end passes through right ball bearing (26) and connect with the right end of blending tank (5) middle part, and is provided in the right end of right spindle (24)
Handle (27).
2. a kind of laser gas mixing arrangement as described in claim 1, which is characterized in that further include retaining ring (28), second
Threaded rod (29) and the second screwed pipe (30) (12), the retaining ring (28) is set in the outside of left rotary shaft (23), and locks
The internal diameter of ring (28) is greater than the diameter of left rotary shaft (23), and the top left hand of the support plate (3) is provided with placing groove, and is placing
It is fixedly installed in slot lower ball bearing (31), the top of the bottom end self-supporting slab (3) of second screwed pipe (30) (12) is inserted
Entering to lower ball bearing (31) inside, the top of second threaded rod (29) is fixedly connected with the bottom end of retaining ring (28), the
Simultaneously spiral shell is filled to inside the top of the second screwed pipe (30) (12) for the bottom end insertion of two threaded rods (29).
3. a kind of laser gas mixing arrangement as claimed in claim 2, which is characterized in that the top of the blending tank (5) is set
It is equipped with mixed gas delivery pipe (32), and is provided with switch valve on mixed gas delivery pipe (32).
4. a kind of laser gas mixing arrangement as claimed in claim 3, which is characterized in that further include rear plate (33) and fore-clamp
The bottom end of plate (34), the rear plate (33) is fixedly connected with the top of pedestal (1), and is provided in the front end of rear plate (33)
It is connected by a hinge at the top of multiple groups rear semicircle fixing groove (35), the left end of the front plate (34) and the left end of rear plate (33),
It is connected by a hinge at the top of the right end of front plate (34) and the right end of rear plate (33), and is provided in the rear end of front plate (34)
Semicircle fixing groove (36) before multiple groups, before the multiple groups semicircle fixing groove (36) respectively with it is right before and after multiple groups rear semicircle fixing groove (35)
It answers, the pure gas tank of multiple groups (4) is located at before multiple groups between semicircle fixing groove (36) and multiple groups rear semicircle fixing groove (35).
5. a kind of laser gas mixing arrangement as claimed in claim 4, which is characterized in that the bottom end of the pedestal (1) is arranged
There are pulley blocks (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739020.4U CN208340521U (en) | 2018-05-17 | 2018-05-17 | A kind of laser gas mixing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739020.4U CN208340521U (en) | 2018-05-17 | 2018-05-17 | A kind of laser gas mixing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208340521U true CN208340521U (en) | 2019-01-08 |
Family
ID=64889909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820739020.4U Expired - Fee Related CN208340521U (en) | 2018-05-17 | 2018-05-17 | A kind of laser gas mixing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208340521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394117A (en) * | 2019-08-29 | 2019-11-01 | 海盐盛信标准件有限公司 | A kind of annealing atmosphere mixing arrangement of high-strength bolt |
-
2018
- 2018-05-17 CN CN201820739020.4U patent/CN208340521U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394117A (en) * | 2019-08-29 | 2019-11-01 | 海盐盛信标准件有限公司 | A kind of annealing atmosphere mixing arrangement of high-strength bolt |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20200517 |