CN210500107U - Pneumatic valve overhauls uses security auxiliary device - Google Patents
Pneumatic valve overhauls uses security auxiliary device Download PDFInfo
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- CN210500107U CN210500107U CN201921649588.8U CN201921649588U CN210500107U CN 210500107 U CN210500107 U CN 210500107U CN 201921649588 U CN201921649588 U CN 201921649588U CN 210500107 U CN210500107 U CN 210500107U
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- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 16
- 238000007689 inspection Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000011112 process operation Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
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- 208000027418 Wounds and injury Diseases 0.000 description 1
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Abstract
The utility model discloses a pneumatic valve overhauls and uses security auxiliary device, support including the slide, the slide supports and has seted up the depression bar via hole, and the guide arm via hole has been seted up to the both sides of depression bar via hole, and the depression bar is provided with compression screw through the downthehole, and the cover is equipped with the slider T shape nut of invering between compression screw's outer wall and the depression bar via hole, the upper end and the compression nut threaded connection of slider T shape nut, and the guide arm is downthehole to be provided with the direction double-end screw, and the last pot head of direction double-end screw is equipped with the lower nut. The utility model discloses a pneumatic valve overhauls auxiliary device can replace the manpower to go to overcome the elasticity of spring in the maintenance process to pneumatic valve disintegration inspection to the realization is to the smooth dismouting of pneumatic valve disintegration maintenance, and the safety of protection operating personnel and equipment has improved the security of work efficiency and maintenance operation, eliminates the defect that the maintenance operation is not convenient.
Description
Technical Field
The utility model relates to a mechanical equipment's maintenance field, concretely relates to pneumatic valve overhauls and uses security auxiliary device.
Background
The disassembly inspection of the pneumatic valve is one of important items for the overhaul of the nuclear power station, and the number and the specification models of the pneumatic valve are large. The pneumatic valve is internally provided with a spring device, the valve cover is tightly pressed by a spring, a fastening screw or a bolt for connecting the valve cover and the valve body is made of stainless steel, when the pneumatic valve is disassembled and checked by the screw or the bolt, the valve cover is disassembled under the action of the spring to overcome the elasticity of the spring by manpower, and the valve cover is easy to bounce and fly, so that the potential safety hazards of equipment damage and injury are caused; meanwhile, in the process of the pneumatic valve being installed again, the acting force of the spring also needs to be overcome, so that the installation and the fastening of a connecting screw or a bolt can be realized, the operation is inconvenient, the screw thread of the fastener is often scratched, the maintenance cost is increased, and most importantly, the risk of unsafe maintenance of operating personnel and equipment exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that pneumatic valve disintegration inspection in-process, under the effect of spring, the elasticity that needs rely on the manpower to overcome the spring just can realize dismantling and reinstallating of valve gap, maintenance operation is not convenient, and there is the potential safety hazard that the valve gap is flown by the bullet, aim at provides a pneumatic valve overhauls and uses security auxiliary device, can be at the maintenance in-process to pneumatic valve disintegration inspection, replace the manpower and go to overcome the elasticity of spring, thereby realize the smooth dismouting to pneumatic valve disintegration maintenance, protect the safety of operating personnel and equipment, the security of work efficiency and maintenance operation has been improved, eliminate the defect that maintenance operation is not convenient.
The utility model discloses a following technical scheme realizes:
the utility model relates to a pneumatic valve overhauls and uses security auxiliary device, support including the slide, the slide supports and has seted up the depression bar via hole, the guide arm via hole has been seted up to the both sides of depression bar via hole, the downthehole pressure rod that is provided with compression screw that compresses tightly, the cover is equipped with the slider T nut of invering between compression screw's outer wall and the depression bar via hole, slider T nut and compression screw threaded connection, the upper end of slider T nut is passed the depression bar via hole and is established the outside compression nut threaded connection in slider T nut upper end with the cover, the lower extreme of slider T nut is hugged closely on the bottom surface that the slide supported, the downthehole direction double-ended screw that is provided with of guide arm via hole, the pot head of direction double-ended screw is equipped with the upper nut that is located guide arm via.
The utility model discloses a pneumatic valve overhauls auxiliary device can replace the manpower to go to overcome the elasticity of spring in the maintenance process to pneumatic valve disintegration inspection to the realization is to the smooth dismouting of pneumatic valve disintegration maintenance, and the safety of protection operating personnel and equipment has improved the security of work efficiency and maintenance operation, eliminates the defect that the maintenance operation is not convenient.
The utility model discloses an operating method and theory of operation when security auxiliary device disintegrates the pneumatic valve as follows: 1. determination of the auxiliary device installation position: 1-3 fastening bolts are respectively disassembled in three directions at intervals of 120 degrees on the circumference of a valve cover of the pneumatic valve, at least more than one bolt in each direction is ensured not to be disassembled and is in an original fastening state, as the undetached fastening bolts are arranged in the three directions at intervals of 120 degrees on the circumference of the valve cover, the valve cover and the valve body are still in the fastening state, and holes exposed by the valve cover and the valve body after the bolts are disassembled are used as installation stations of an auxiliary device; 2. mounting an auxiliary device and clamping a valve cover: firstly, unscrewing an upper nut and a lower nut at the upper end of a guide double-headed screw to enable the upper end of the guide double-headed screw and a sliding plate support to be kept in a movable state, then enabling the lower end of the guide double-headed screw to pass through a through hole of a valve cover to enter a screw hole of a valve body and be in threaded connection with the screw hole of the valve body, adjusting the lower nut at the upper end of the guide double-headed screw to a height suitable for field operation, fastening the upper nut, clamping the sliding plate support, and determining the height of the sliding plate support, namely the utility model discloses utilize the screw hole of the valve; the T-shaped nut and the compression nut of the fastening nut slider are connected with the T-shaped nut of the slider in a threaded manner, so that the compression screw can move up and down by rotating the compression screw, and the compression screw is rotated by a tool under the condition that the T-shaped nut and the compression nut of the adjusting slider are fixed, so that the compression screw moves downwards to compress the valve cover; repeating the above operation, and respectively installing the three auxiliary devices in three directions; 3. disassembling the valve cover: after the three auxiliary devices press the valve covers, all the remaining bolts on the pneumatic valve are removed, and the valve covers are pressed by the pressing screw rod with downward force, so that the elastic force of the spring between the valve covers and the valve body is overcome, the valve covers cannot be bounced when the remaining bolts are removed, and all the bolts can be smoothly removed; after the bolt is dismantled and is accomplished, the three hold-down screw of while counter-rotation, hold-down screw upward movement, the valve gap is realized rising in step, regresses the valve gap internal spring effort gradually, when spring effort and hold-down screw appear the equilibrium point (the valve gap does not rise again), demolishs auxiliary device, then takes off the valve gap, realizes the disintegration work of pneumatic valve.
The utility model discloses an operation method and theory of operation when security auxiliary device assembles the pneumatic valve as follows: 1. installing an auxiliary device: the valve cover is placed on the valve body, and the auxiliary devices are respectively arranged in three directions with 120-degree intervals on the circumference, and the installation method is the same as that of the auxiliary devices; 2: compressing the valve cover: after the three auxiliary devices are installed, three persons rotate the three compression screws at the same time, the compression screws move downwards, and the valve cover synchronously descends until the valve cover is tightly attached to and compressed with the valve body; 3. assembling fastening bolts: after the auxiliary device is used for clamping the valve cover and the valve body, the connecting bolts of the valve cover and the valve body are installed and fastened in the screw holes of the vacant positions, then the auxiliary device is disassembled, the connecting bolts of all the valve covers are installed again, and the valve cover is assembled. After the operation of the steps is completed, the auxiliary device is used for carrying out complete operation on the disassembly, inspection and maintenance work of the pneumatic valve.
The utility model discloses an auxiliary device has designed and has prevented that the valve gap from being compressed tightly slow elevating system by direction protection mechanism and the valve gap that the spring bullet flies, makes the valve in disintegration inspection process, and the valve gap is in controllable state to effectively protect the safety of personnel and equipment, protected the screw thread of bolt simultaneously, avoid pulling the condition of thread screw thread, realize the convenience demand of maintenance process operation.
The guide rod via hole and the press rod via hole are waist-shaped holes, the setting direction of the guide rod via hole is parallel to a connecting line between the two guide double-headed screws, and the setting direction of the press rod via hole is perpendicular to the setting direction of the guide rod via hole. Through the guide arm via hole that is waist type hole, can adjust the transverse spacing between two direction double threaded screw to satisfy the demand of the multiple screw interval of pneumatic valve, then can satisfy the demand that the pneumatic valve different diameters were adjusted the size through adjusting the position of compression screw in the depression bar via hole.
The lower pot head of direction double-end screw is equipped with the transition swivel nut, selects the transition swivel nut of suitable external diameter and the supporting cooperation of the direction double-end screw that corresponds to use, alright realization satisfies the change regulation demand of pneumatic valve screw hole variation in aperture size.
The expansion plate is provided with an expansion guide rod through hole which is a waist-shaped hole, the expansion plate is arranged on the sliding plate support through a fixing bolt which penetrates through the guide rod through hole and the expansion guide rod through hole, the guide double-headed screws are arranged on the expansion plate through the expansion guide rod through holes, and the adjustment range of the distance between the two guide double-headed screws can be further enlarged through the installation of the expansion plate, so that the disassembly use of certain super-huge pneumatic valves is met; wherein, above-mentioned expansion board can be a plurality of, can carry out diversified expansion board combination form like this according to actual demand, satisfies multiple pitch and changes.
Between upper nut and the slide support, between lower nut and the slide support, all be equipped with the packing ring between gland nut and the slide support, play good guard action to the slide support.
The compression screw lower extreme has the projection, the cover is equipped with the bearing on the projection, still include the clamp plate, the step hole has been seted up on the clamp plate surface, projection and bearing are arranged in the step hole, compression screw is when rotating, play middle transition effect through bearing and clamp plate, can avoid the lower extreme when rotating the surperficial direct contact of terminal surface and valve gap to produce the rotational friction, the compression screw lower extreme is rotating the process, terminal surface and clamp plate surface rotate down, the projection rotates in the step hole, so both guaranteed compression screw's normal rotation unaffected, can play the guard action to the valve gap again.
The lower pot head of direction double-threaded screw is equipped with additional nut and additional packing ring, is flange joint between valve gap and the valve body, is when being the via hole on valve gap and the valve body promptly, and fixed mounting is realized through additional nut and additional packing ring to the lower extreme of direction double-threaded screw through the via hole of valve gap and valve body then.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model relates to a pneumatic valve overhauls uses security auxiliary device can replace the manpower to overcome the elasticity of spring in the maintenance process to pneumatic valve disintegration inspection to realize the smooth dismouting to pneumatic valve disintegration maintenance, protect the safety of operating personnel and equipment, improved the security of work efficiency and maintenance operation, eliminate the inconvenient defect of maintenance operation;
2. the utility model relates to a pneumatic valve overhauls uses security auxiliary device has designed the direction protection mechanism and the valve gap that prevent the valve gap from being popped off by the spring and compress tightly slow elevating system, makes the valve gap be in controllable state in the check process of disassembling, thus has effectively protected the safety of personnel and equipment, has protected the screw thread of bolt simultaneously, avoids drawing the condition of hindering the screw thread, realizes the convenience demand of maintenance process operation;
3. the utility model relates to a pneumatic valve overhauls uses security auxiliary device, has small, light in weight, and operating personnel only need to be familiar with the structure and the application of this device alright use, need not the characteristics that high skill required, possess very strong maneuverability;
4. the utility model relates to a pneumatic valve overhauls with security auxiliary device, accessible combination annex, the field adjustment satisfies the maintenance activity of the multiple pneumatic valve of different specifications.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic structural view of the present invention;
fig. 4 is a schematic diagram of the expandable pitch structure of the present invention.
Reference numbers and corresponding part names in the drawings:
1-sliding plate support, 2-pressing rod through hole, 3-guide rod through hole, 4-compression screw, 5-sliding block T-shaped nut, 6-compression nut, 7-guide double-headed screw, 8-upper nut, 9-lower nut, 10-transition barrel, 11-expansion plate, 12-expansion guide rod through hole, 13-washer, 14-bearing, 15-pressing plate and 16-fixing bolt.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
As shown in fig. 1, the utility model relates to a pneumatic valve overhauls and uses security auxiliary device, support 1 including the slide, depression bar via hole 2 has been seted up on the slide supports 1, guide arm via hole 3 has been seted up to depression bar via hole 2's both sides, be provided with housing screw 4 in the depression bar via hole 2, the cover is equipped with the slider T shape nut 5 of invering between housing screw 4's outer wall and the depression bar via hole 2, slider T shape nut 5 and housing screw 4 threaded connection, the upper end of slider T shape nut 5 is passed depression bar via hole 2 and is established at the outside housing screw 6 threaded connection in slider T shape nut 5 upper end, the lower extreme of slider T shape nut 5 is hugged closely on the bottom surface that the slide supported 1, be provided with direction double-head screw 7 in the guide arm via hole 3, the last pot head of direction double-head screw 7 is equipped with upper nut 8 that is located guide arm 3 top and is located guide arm via hole 3 below lower nut.
The utility model discloses a pneumatic valve overhauls auxiliary device can replace the manpower to go to overcome the elasticity of spring in the maintenance process to pneumatic valve disintegration inspection to the realization is to the smooth dismouting of pneumatic valve disintegration maintenance, and the safety of protection operating personnel and equipment has improved the security of work efficiency and maintenance operation, eliminates the defect that the maintenance operation is not convenient.
The utility model discloses an operating method and theory of operation when security auxiliary device disintegrates the pneumatic valve as follows: 1. determination of the auxiliary device installation position: 1-3 fastening bolts are respectively disassembled in three directions at intervals of 120 degrees on the circumference of a valve cover of the pneumatic valve, at least more than one bolt in each direction is ensured not to be disassembled and is in an original fastening state, as the undetached fastening bolts are arranged in the three directions at intervals of 120 degrees on the circumference of the valve cover, the valve cover and the valve body are still in the fastening state, and holes exposed by the valve cover and the valve body after the bolts are disassembled are used as installation stations of an auxiliary device; 2. mounting an auxiliary device and clamping a valve cover: firstly, unscrewing an upper nut and a lower nut at the upper end of a guide double-headed screw to enable the upper end of the guide double-headed screw and a sliding plate support to be kept in a movable state, then enabling the lower end of the guide double-headed screw to pass through a through hole of a valve cover to enter a screw hole of a valve body and be in threaded connection with the screw hole of the valve body, adjusting the lower nut at the upper end of the guide double-headed screw to a height suitable for field operation, fastening the upper nut, clamping the sliding plate support, and determining the height of the sliding plate support, namely the utility model discloses utilize the screw hole of the valve; the T-shaped nut and the compression nut of the fastening nut slider are connected with the T-shaped nut of the slider in a threaded manner, so that the compression screw can move up and down by rotating the compression screw, and the compression screw is rotated by a tool under the condition that the T-shaped nut and the compression nut of the adjusting slider are fixed, so that the compression screw moves downwards to compress the valve cover; repeating the above operation, and respectively installing the three auxiliary devices in three directions; 3. disassembling the valve cover: after the three auxiliary devices press the valve covers, all the remaining bolts on the pneumatic valve are removed, and the valve covers are pressed by the pressing screw rod with downward force, so that the elastic force of the spring between the valve covers and the valve body is overcome, the valve covers cannot be bounced when the remaining bolts are removed, and all the bolts can be smoothly removed; after the bolt is dismantled and is accomplished, the three hold-down screw of while counter-rotation, hold-down screw upward movement, the valve gap is realized rising in step, regresses the valve gap internal spring effort gradually, when spring effort and hold-down screw appear the equilibrium point (the valve gap does not rise again), demolishs auxiliary device, then takes off the valve gap, realizes the disintegration work of pneumatic valve.
The utility model discloses an operation method and theory of operation when security auxiliary device assembles the pneumatic valve as follows: 1. installing an auxiliary device: the valve cover is placed on the valve body, and the auxiliary devices are respectively arranged in three directions with 120-degree intervals on the circumference, and the installation method is the same as that of the auxiliary devices; 2: compressing the valve cover: after the three auxiliary devices are installed, three persons rotate the three compression screws at the same time, the compression screws move downwards, and the valve cover synchronously descends until the valve cover is tightly attached to and compressed with the valve body; 3. assembling fastening bolts: after the auxiliary device is used for clamping the valve cover and the valve body, the connecting bolts of the valve cover and the valve body are installed and fastened in the screw holes of the vacant positions, then the auxiliary device is disassembled, the connecting bolts of all the valve covers are installed again, and the valve cover is assembled. After the operation of the steps is completed, the auxiliary device is used for carrying out complete operation on the disassembly, inspection and maintenance work of the pneumatic valve.
The utility model discloses an auxiliary device has designed and has prevented that the valve gap from being compressed tightly slow elevating system by direction protection mechanism and the valve gap that the spring bullet flies, makes the valve in disintegration inspection process, and the valve gap is in controllable state to effectively protect the safety of personnel and equipment, protected the screw thread of bolt simultaneously, avoid pulling the condition of thread screw thread, realize the convenience demand of maintenance process operation.
Example 2
On the basis of embodiment 1, as shown in fig. 2, the guide rod via hole and the press rod via hole are both kidney-shaped holes, the arrangement direction of the guide rod via hole is parallel to the connecting line between the two guide double-headed screws, and the arrangement direction of the press rod via hole is perpendicular to the arrangement direction of the guide rod via hole. Through the guide arm via hole that is waist type hole, can adjust the transverse spacing between two direction double threaded screw to satisfy the demand of the multiple screw interval of pneumatic valve, then can satisfy the demand that the pneumatic valve different diameters were adjusted the size through adjusting the position of compression screw in the depression bar via hole.
Preferably, as shown in fig. 3, the lower end sleeve of the guide double-headed screw is provided with a transition threaded sleeve 10, and the transition threaded sleeve with a proper outer diameter is selected to be matched with the corresponding guide double-headed screw for use, so that the requirements of different sizes of screw holes of the pneumatic valve on changing and adjusting can be met.
Example 3
On the basis of the embodiment 2, as shown in fig. 4, the expansion plate device further comprises expansion plates 11 installed on two sides of the expansion plate sliding plate support, expansion guide rod through holes 12 in a kidney-shaped hole are formed in the expansion plates 11, the expansion plates are installed on the sliding plate support through fixing bolts 16 penetrating through the guide rod through holes and the expansion guide rod through holes, the guide double-headed screws are installed on the expansion plates 11 through the expansion guide rod through holes 12, and the installation of the expansion plates can further enlarge the adjusting range of the distance between the two guide double-headed screws, so that the use of disassembly of certain super-large pneumatic valves is met.
Preferably, washers 13 are arranged between the upper nut and the sliding plate support, between the lower nut and the sliding plate support, and between the compression nut and the sliding plate support, so that the sliding plate support is well protected.
Example 4
On embodiment 1's basis, as shown in fig. 1, the compression screw lower extreme has the projection, the cover is equipped with bearing 14 on the projection, still include clamp plate 15, the step hole has been seted up on the clamp plate surface, projection and bearing are arranged in the step hole, the compression screw is when rotating, play middle transition effect through bearing and clamp plate, can avoid the lower extreme when rotating the surface direct contact of terminal surface and valve gap to produce and rotate the friction, the compression screw lower extreme is rotating the process, lower terminal surface and clamp plate surface rotate, the projection rotates in the step hole, so both guaranteed compression screw's normal rotation unaffected, can play the guard action to the valve gap again.
Preferably, the lower end of the guide double-threaded rod is sleeved with an additional nut and an additional washer, and when the valve cover and the valve body are connected through flanges, namely the valve cover and the valve body are provided with through holes, the lower end of the guide double-threaded rod penetrates through the through holes of the valve cover and the valve body and then is fixedly installed through the additional nut and the additional washer.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a pneumatic valve overhauls uses security auxiliary device, a serial communication port, support (1) including the slide, depression bar via hole (2) have been seted up on slide support (1), guide arm via hole (3) have been seted up to the both sides of depression bar via hole (2), be provided with compression screw (4) in depression bar via hole (2), the cover is equipped with slider T shape nut (5) of invering between the outer wall of compression screw (4) and depression bar via hole (2), slider T shape nut (5) and compression screw (4) threaded connection, the upper end of slider T shape nut (5) is passed depression bar via hole (2) and is established at the outside gland nut (6) threaded connection in slider T shape nut (5) upper end with the cover, the lower extreme of slider T shape nut (5) is hugged closely on the bottom surface that slide supported (1), be provided with double-end screw (7) in guide arm via hole (3), the upper end cover of guide double-end screw (7) is equipped with upper nut ( The upper end of the guide double-thread screw (7) is fixed on the sliding plate support (1) through an upper nut (8) and a lower nut (9) by a lower nut (9) below the hole (3).
2. A safety auxiliary device for overhauling of a pneumatic valve as claimed in claim 1, wherein the guide rod via hole (3) and the press rod via hole (2) are both kidney-shaped holes, the arrangement direction of the guide rod via hole (3) is parallel to the connection line between the two guide double-headed screws (7), and the arrangement direction of the press rod via hole (2) is perpendicular to the arrangement direction of the guide rod via hole (3).
3. A safety auxiliary device for overhauling of a pneumatic valve as claimed in claim 1, wherein the lower end of the lead double-headed screw (7) is sleeved with a transition threaded sleeve (10).
4. A safety auxiliary device for overhauling of a pneumatic valve according to claim 1, further comprising an expansion plate (11) installed at two sides of the expansion plate sliding plate support (1), wherein an expansion guide rod through hole (12) in a waist-shaped hole is formed in the expansion plate (11), the expansion plate (11) is installed on the sliding plate support (1) through a fixing bolt (16) penetrating through the guide rod through hole (3) and the expansion guide rod through hole (12), and the guide stud (7) is installed on the expansion plate (11) through the expansion guide rod through hole (12).
5. A pneumatic valve overhaul security aid according to claim 1 wherein washers (13) are provided between the upper nut (8) and the sled support (1), between the lower nut (9) and the sled support (1), and between the compression nut (6) and the sled support (1).
6. The safety auxiliary device for overhauling of the pneumatic valve is characterized in that the lower end of the compression screw (4) is provided with a convex column, a bearing (14) is sleeved on the convex column, the safety auxiliary device further comprises a pressing plate (15), a step hole is formed in the surface of the pressing plate (15), and the convex column and the bearing (14) are arranged in the step hole.
7. A safety auxiliary device for overhauling of a pneumatic valve as set forth in claim 1, wherein the lower end of the lead stud (7) is sleeved with an additional nut and an additional washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921649588.8U CN210500107U (en) | 2019-09-29 | 2019-09-29 | Pneumatic valve overhauls uses security auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921649588.8U CN210500107U (en) | 2019-09-29 | 2019-09-29 | Pneumatic valve overhauls uses security auxiliary device |
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| Publication Number | Publication Date |
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| CN210500107U true CN210500107U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921649588.8U Active CN210500107U (en) | 2019-09-29 | 2019-09-29 | Pneumatic valve overhauls uses security auxiliary device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428221A (en) * | 2020-11-10 | 2021-03-02 | 广东韶钢工程技术有限公司 | Safety dismounting device for valve cover of regulating valve and using method of safety dismounting device |
| CN115235756A (en) * | 2022-03-11 | 2022-10-25 | 辽宁清河发电有限责任公司 | Multifunctional valve maintenance device and maintenance method |
-
2019
- 2019-09-29 CN CN201921649588.8U patent/CN210500107U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428221A (en) * | 2020-11-10 | 2021-03-02 | 广东韶钢工程技术有限公司 | Safety dismounting device for valve cover of regulating valve and using method of safety dismounting device |
| CN115235756A (en) * | 2022-03-11 | 2022-10-25 | 辽宁清河发电有限责任公司 | Multifunctional valve maintenance device and maintenance method |
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