CN215565188U - Personnel gate locking mechanism - Google Patents
Personnel gate locking mechanism Download PDFInfo
- Publication number
- CN215565188U CN215565188U CN202023141823.6U CN202023141823U CN215565188U CN 215565188 U CN215565188 U CN 215565188U CN 202023141823 U CN202023141823 U CN 202023141823U CN 215565188 U CN215565188 U CN 215565188U
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- speed reducer
- output screw
- screw rods
- screw rod
- side wall
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Abstract
The utility model relates to a containment assembly of an ocean nuclear power generation platform, in particular to a personnel valve locking mechanism. It is characterized by comprising a speed reducer, wherein the speed reducer comprises two input rotating shafts and three output screw rods. The two input rotating shafts respectively penetrate through a group of parallel side walls of the speed reducer to extend out, and hand wheels are fixed on the extending ends of the input rotating shafts. The three output screw rods are respectively positioned on the top, the bottom and one side wall of the speed reducer, one end of each output screw rod is positioned in the shell of the speed reducer, the other end of each output screw rod is positioned outside the shell of the speed reducer, and nuts are arranged on the output screw rods positioned outside the shell of the speed reducer. And vertical locking pins are arranged on the two output screw rods positioned at the top and the bottom of the speed reducer, and one ends of the vertical locking pins are fixed on the corresponding nuts. And the output screw rod nut on the side wall of the speed reducer is provided with a driving arm, and the outer end of the driving arm is provided with a horizontal locking pin. The locking mechanism occupies less space of a personnel valve, has a large application range and is convenient to install.
Description
Technical Field
The utility model relates to a containment assembly of an ocean nuclear power generation platform, in particular to a personnel valve locking mechanism of a containment of the ocean nuclear power generation platform.
Background
The special personnel gate of the marine nuclear power generation platform is an important penetrating piece on a containment vessel, on one hand, the special personnel gate is an important part for ensuring the integrity of a pressure boundary of the containment vessel, on the other hand, the special personnel gate is an important barrier for preventing radioactive substances from leaking out, and internal equipment is protected against external events. During the closing of the personnel lock, the locking mechanism needs to provide a sufficient locking force to ensure the sealing and stability of the personnel lock. Based on the above situation, the personnel gate locking mechanism converts the rotary motion of the hand wheel into the linear motion of the locking pin through the speed reducer and the screw rod in a screw rod transmission mode, the locking pin is inserted into the locking buckle on the door frame, the locking action of the personnel gate is realized, and only the hand wheel needs to be rotated reversely when the locking is released.
Locking pins of the existing personnel gate locking mechanism are distributed in four directions, namely an up-down direction, a left-right direction and a four-direction four-point locking mode. The locking mechanism occupies more space of a personnel valve due to the locking pins arranged in four directions, cannot be used in occasions with insufficient space, and has a small application range. Moreover, the large space occupied by the personnel valve causes the inconvenient installation of the opening and closing mechanism of the door leaf in the personnel valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a personnel valve locking mechanism which occupies less space of a personnel valve, has a wider application range and is convenient to install.
In order to solve the problems, the following technical scheme is provided:
the personnel gate locking mechanism is characterized by comprising a speed reducer, wherein the speed reducer comprises two input rotating shafts and three output screw rods. The two input rotating shafts respectively penetrate through a group of parallel side walls of the speed reducer and extend out of the speed reducer, the input rotating shafts are in rotating fit with the side walls of the speed reducer, and hand wheels are fixed on the extending ends of the input rotating shafts. The three output screw rods are respectively positioned on the top, the bottom and one side wall of the speed reducer, the side wall of the speed reducer where the output screw rods are positioned is vertical to the side wall of the speed reducer where the input rotating shaft is positioned, one end of each output screw rod is positioned in the shell of the speed reducer, the other end of each output screw rod is positioned outside the shell of the speed reducer, the output screw rods are in rotating fit with the side wall of the speed reducer, and nuts are arranged on the output screw rods positioned outside the shell of the speed reducer. The two output screw rods positioned at the top and the bottom of the speed reducer are both provided with vertical locking pins, the vertical locking pins are hollow and are sleeved on the output screw rods, one ends of the vertical locking pins are fixed on nuts corresponding to the output screw rods, and the other ends of the vertical locking pins penetrate through the outer ends corresponding to the output screw rods and extend out. The top and the bottom of the output screw nut on the side wall of the speed reducer are both provided with vertical driving arms extending outwards, the outer ends of the driving arms are both provided with horizontal locking pins, and the horizontal locking pins are arranged towards one side far away from the speed reducer.
The outer sides of the horizontal locking pins are fixed with guide rods which are horizontally arranged, and the guide rods are longitudinally arranged along the horizontal locking pins.
One of the two output rotating shafts is a long rotating shaft, the other one is a short rotating shaft, and a mounting plate is arranged on the side wall of the speed reducer corresponding to the long rotating shaft.
By adopting the scheme, the method has the following advantages:
the speed reducer of the personnel valve locking mechanism comprises two input rotating shafts and three output screw rods, wherein hand wheels are fixed on the extending ends of the input rotating shafts, the three output screw rods are respectively positioned on the top, the bottom and one side wall of the speed reducer, nuts are arranged on the output screw rods, vertical locking pins are arranged on the two output screw rods positioned on the top and the bottom of the speed reducer, the vertical locking pins are hollow and are sleeved on the output screw rods, one end of each vertical locking pin is fixed on the nut corresponding to the output screw rod, the other end of each vertical locking pin penetrates through the outer end corresponding to the output screw rod to extend out, driving arms which vertically extend outwards are arranged on the top and the bottom of the output screw rod nut positioned on the side wall of the speed reducer, and horizontal locking pins are arranged on the outer ends of the driving arms. The personnel valve locking is provided with the locking pins in the upper direction, the lower direction and one side direction, and the number of the locking pins in one direction is two, so that the three-direction four-point locking function is realized. Moreover, the personnel valve locking mechanism has one direction which is free, and the free direction is reserved for the opening and closing mechanism of the door leaf in the personnel valve, so that the opening and closing mechanism is convenient to install.
Drawings
FIG. 1 is a schematic structural view of a personnel valve locking mechanism of the present invention;
fig. 2 is a perspective view of the personnel valve locking mechanism of the present invention in use.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the locking mechanism of the personnel gate of the utility model comprises a speed reducer 1, wherein the speed reducer 1 comprises two input rotating shafts and three output screw rods 2. The two input rotating shafts respectively penetrate through a group of parallel side walls of the speed reducer 1 and extend out, the input rotating shafts are in rotating fit with the side walls of the speed reducer 1, and hand wheels 9 are fixed on the extending ends of the input rotating shafts. The three output screw rods 2 are respectively positioned on the top, the bottom and one side wall of the speed reducer 1, the side wall of the speed reducer 1 where the output screw rods 2 are positioned is vertical to the side wall of the speed reducer 1 where the input rotating shaft is positioned, one end of each output screw rod 2 is positioned in the shell of the speed reducer 1, the other end of each output screw rod is positioned outside the shell of the speed reducer 1, the output screw rods 2 are in rotating fit with the side walls of the speed reducer 1, and nuts 3 are arranged on the output screw rods 2 positioned outside the shell of the speed reducer 1. All there is vertical fitting pin 4 on those two output lead screws 2 that are located 1 top and bottom of speed reducer, and vertical fitting pin 4 is the cavity form, and its cover is even on output lead screw 2, and the one end of vertical fitting pin 4 is fixed on the nut 3 that corresponds output lead screw 2, and the other end passes the outer end that corresponds output lead screw 2 and stretches out outside. The top and the bottom of the nut 3 of the output screw rod 2 positioned on the side wall of the speed reducer 1 are provided with driving arms 8 which vertically extend outwards, the outer ends of the driving arms 8 are provided with horizontal locking pins 6, and the horizontal locking pins 6 are arranged towards one side far away from the speed reducer 1.
And guide rods 5 which are horizontally arranged are fixed on the outer sides of the horizontal locking pins 6, and the guide rods 5 are longitudinally arranged along the horizontal locking pins 6.
One of the two output rotating shafts is a long rotating shaft 11, the other one is a short rotating shaft 12, and a mounting plate 10 is arranged on the side wall of the speed reducer 1 corresponding to the long rotating shaft 11.
When the personnel gate locking mechanism is used, the personnel gate locking mechanism is integrated on a door leaf of a personnel gate through the mounting plate 10, the hand wheel 9 corresponding to the long rotating shaft 11 is positioned in the door leaf and is an internal hand wheel 9, the hand wheel 9 corresponding to the short rotating shaft 12 is positioned outside the door leaf and is an external hand wheel 9, and the horizontal locking pin 6, the vertical locking pin 4 and the guide rod 5 are all inserted into the limiting seat 7 of the door leaf.
During operation, the external hand wheel 9 performs a locking action: the external hand wheel 9 is rotated manually to drive the speed reducer 1 to drive the output screw rod 2 to rotate, the nut 3 cannot rotate under the action of the limiting seat 7, then linear motion is carried out, the nut 3 drives the corresponding vertical locking pin 4 and the corresponding horizontal locking pin 6 to be inserted into a locking buckle on a door frame of the personnel gate, and locking action is completed. When unlocking and locking actions are carried out, the external hand wheel 9 only needs to be rotated anticlockwise. The inner hand wheel 9 performs a locking action: the internal hand wheel 9 of manual rotation drives the speed reducer 1 and drives the output lead screw 2 to rotate, under the effect of the limiting seat 7, the nut 3 cannot rotate, and then carries out linear motion, and the nut 3 drives the corresponding vertical locking pin 4 and the horizontal locking pin 6 to be inserted into the locking buckle on the door frame of the personnel gate, and the locking action is completed. When unlocking and locking actions are carried out, only the inner hand wheel 9 needs to be rotated reversely.
Claims (3)
1. A personnel gate locking mechanism is characterized by comprising a speed reducer (1), wherein the speed reducer (1) comprises two input rotating shafts and three output screw rods (2); the two input rotating shafts respectively penetrate through a group of parallel side walls of the speed reducer (1) and extend out, the input rotating shafts are in rotating fit with the side walls of the speed reducer (1), and hand wheels (9) are fixed on the extending ends of the input rotating shafts; the three output screw rods (2) are respectively positioned on the top, the bottom and one side wall of the speed reducer (1), the side wall of the speed reducer (1) where the output screw rods (2) are positioned is vertical to the side wall of the speed reducer (1) where the input rotating shaft is positioned, one end of each output screw rod (2) is positioned in the shell of the speed reducer (1), the other end of each output screw rod is positioned outside the shell of the speed reducer (1), the output screw rods (2) are in rotating fit with the side walls of the speed reducer (1), and nuts (3) are arranged on the output screw rods (2) positioned outside the shell of the speed reducer (1); vertical locking pins (4) are arranged on the two output screw rods (2) positioned at the top and the bottom of the speed reducer (1), the vertical locking pins (4) are hollow and are sleeved on the output screw rods (2), one end of each vertical locking pin (4) is fixed on the nut (3) corresponding to the output screw rod (2), and the other end of each vertical locking pin passes through the outer end corresponding to the output screw rod (2) and extends out; the top and the bottom of the output screw rod (2) nut (3) on the side wall of the speed reducer (1) are both provided with a vertical driving arm (8) extending outwards, the outer end of the driving arm (8) is provided with a horizontal locking pin (6), and the horizontal locking pin (6) is arranged towards one side far away from the speed reducer (1).
2. Personnel lock mechanism according to claim 1, characterized in that outside the horizontal locking pin (6) horizontally arranged guide bars (5) are fixed, which guide bars (5) are arranged in the longitudinal direction of the horizontal locking pin (6).
3. Personnel gate locking mechanism according to claim 1 or 2, characterized in that one of the two output shafts is a long shaft (11) and the other is a short shaft (12), and the side wall of the reducer (1) corresponding to the long shaft (11) is provided with a mounting plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023141823.6U CN215565188U (en) | 2020-12-24 | 2020-12-24 | Personnel gate locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023141823.6U CN215565188U (en) | 2020-12-24 | 2020-12-24 | Personnel gate locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215565188U true CN215565188U (en) | 2022-01-18 |
Family
ID=79815492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023141823.6U Active CN215565188U (en) | 2020-12-24 | 2020-12-24 | Personnel gate locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215565188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482909A (en) * | 2020-12-24 | 2021-03-12 | 无锡海核装备科技有限公司 | Personnel gate locking mechanism |
-
2020
- 2020-12-24 CN CN202023141823.6U patent/CN215565188U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482909A (en) * | 2020-12-24 | 2021-03-12 | 无锡海核装备科技有限公司 | Personnel gate locking mechanism |
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