CN113988250A - Counter is pressed to machinery of maloperation is prevented in area - Google Patents
Counter is pressed to machinery of maloperation is prevented in area Download PDFInfo
- Publication number
- CN113988250A CN113988250A CN202111243436.XA CN202111243436A CN113988250A CN 113988250 A CN113988250 A CN 113988250A CN 202111243436 A CN202111243436 A CN 202111243436A CN 113988250 A CN113988250 A CN 113988250A
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- CN
- China
- Prior art keywords
- button
- counting
- shell
- mechanical press
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims description 14
- 230000002265 prevention Effects 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/02—Housing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/04—Design features of general application for driving the stage of lowest order
- G06M1/06—Design features of general application for driving the stage of lowest order producing continuous revolution of the stage, e.g. with gear train
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/28—Design features of general application for zeroising or setting to a particular value
- G06M1/34—Design features of general application for zeroising or setting to a particular value using reset shafts
- G06M1/36—Actuating means, e.g. magnet, spring, weight
Abstract
A mechanical press counter with anti-misoperation function comprises a shell, a panel, a transmission shaft and a digit wheel assembly, wherein the transmission shaft and the digit wheel assembly are arranged in the shell; the transmission shaft drives the digit wheel assembly to rotate for counting when rotating, and the counting device further comprises a transmission sheet, a locking block, a counting button and an unlocking button which are arranged on the panel; the transmission piece is arranged on the transmission shaft; when the counting button is pressed down, the counting button drives the transmission sheet to rotate and drives the transmission shaft to rotate; a bayonet is arranged on the transmission piece; the locking block is arranged on the unlocking button; when the unlocking button is not pressed down, the locking block is clamped on the bayonet; when the unlocking button is pressed down, the locking block moves downwards and allows the bayonet to be opened. When the mechanical press counter provided by the invention is used for counting, the counting button can be pressed down for counting operation after the unlocking button is pressed down, and the counting operation cannot be carried out if the counting button is operated alone, so that misoperation can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of counting equipment, in particular to a mechanical press counter with misoperation prevention.
Background
The mechanical counter is an incremental counter. The traditional mechanical counter is divided into a roller type mechanical counter and a pull-out type mechanical counter, has no function of preventing misoperation, and is easy to cause counting errors due to mistaken touch during counting operation.
Disclosure of Invention
The invention mainly aims to provide a mechanical press counter with misoperation prevention, and aims to solve the technical problems.
In order to achieve the purpose, the invention provides a mechanical press counter with misoperation prevention, which comprises a shell, a panel, a transmission shaft and a digit wheel assembly, wherein the transmission shaft and the digit wheel assembly are arranged in the shell; the transmission shaft drives the wheel assembly to rotate for counting when rotating, and the counting mechanism further comprises a transmission sheet, a locking block, a counting button and a unlocking button which are arranged on the panel; the transmission piece is arranged on the transmission shaft;
when the counting button is pressed down, the counting button drives the transmission sheet to rotate and drives the transmission shaft to rotate;
a bayonet is arranged on the transmission piece; the locking block is arranged on the unlocking button;
when the unlocking button is not pressed down, the locking block is clamped on the bayonet;
when the unlocking button is pressed down, the locking block moves downwards and allows the bayonet to be opened.
Preferably, the transmission sheet is provided with a molded hole; the counting button is provided with a first push rod, the first push rod is provided with a pin shaft, and the pin shaft can slide in the molded hole.
Preferably, the locking block is connected with the unlocking button through a second push rod and a fixing pin; the second push rod is arranged below the unlocking button, and the locking block is installed on the second push rod through the fixing pin.
Preferably, the number wheel assembly comprises a number wheel mounting shaft, and a helical gear number wheel and a plurality of number wheels which are sleeved on the number wheel mounting shaft; limiting clamping rings are arranged between the helical gear digit wheel and the digit wheel and between two adjacent digit wheels; the transmission shaft is provided with a driving wheel, and the driving wheel is in transmission connection with the helical gear digital wheel through a crankshaft.
Preferably, a mounting frame is arranged inside the shell, and the digit wheel mounting shaft and the transmission shaft are mounted on the mounting frame.
Preferably, the system further comprises a zero clearing mechanism, wherein the zero clearing mechanism comprises: the zero clearing knob, the first gear and the second gear are arranged in the shell and are meshed with each other; the first gear is mounted at the end of the digit wheel mounting shaft; the zero clearing knob penetrates through the side surface of the shell and is connected with the second gear; the zero clearing knob is flush with the side face of the shell; and the clearance knob and the shell are sealed by a sealing ring.
Preferably, a gasket is sleeved on the digit wheel mounting shaft and is positioned between the digit wheel and the inner wall of the mounting frame.
Preferably, a reading window is arranged on the panel, a transparent plate is arranged on the reading window, and the transparent plate and the panel are sealed through a sealing ring.
Preferably, a clamping table is arranged on the panel, the clamping table is matched with the opening of the shell, and the clamping table is sealed with the opening of the shell through a sealing ring.
Preferably, return springs are respectively arranged in the counting button and the unlocking button; and the panel and the counting button and the panel and the unlocking button are sealed by sealing rings.
The invention achieves the following beneficial effects: the mechanical press counter provided by the invention has the press counting function and the anti-misoperation function. When the lock is unlocked, the transmission piece is limited in a mode that the locking block is matched with the bayonet on the transmission piece, the transmission piece is limited from rotating, and the counting button cannot be pressed for counting at the moment; the locking block is pushed to move downwards by pressing the unlocking button, and the bayonet is opened for unlocking. When the counting device is used for counting, the counting button can be pressed down for counting operation after the unlocking button is pressed down, and the counting operation cannot be carried out if the counting button is operated alone, so that misoperation can be effectively prevented. In addition, the counter has good sealing performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a front view of a mechanical push counter with anti-misoperation according to the present invention;
FIG. 2 is a top view of a mechanical push counter with anti-misoperation according to the present invention;
FIG. 3 is a left side view of a mechanical push counter with anti-malfunction features provided by the present invention;
FIG. 4 is a right side view of a mechanical push counter with anti-malfunction according to the present invention;
description of reference numerals: 100-unlock button; 101-count button; 102-a locking block; 103-a transmission plate; 1031-bayonet; 1032-type holes; 104-a pin shaft; 105-a first push rod; 106-fixed pins; 107-second push rod; 108-a panel; 109-a transparent plate; 200-a first gear; 201-a second gear; 202-a gasket; 203-a transmission shaft; 204-driving wheel; 205-a mounting frame; 206-helical-tooth number wheel; 207-a stop collar; 208-a crankshaft; 209-number wheel; 300-digit wheel mounting shaft; 301-clear knob; 302-housing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
As shown in fig. 1 and fig. 3, the counter is an embodiment of a mechanical press counter with anti-misoperation function, the counter includes a housing 302, a faceplate 108, a transmission shaft 203 disposed inside the housing 302, and a digit wheel assembly; when the transmission shaft 203 rotates, the number wheel assembly is driven to rotate for counting, and the counting machine is characterized in that: the device also comprises a transmission piece 103, a locking block 102, a counting button 101 and an unlocking button 100 which are arranged on a panel 108; the transmission piece 103 is installed on the transmission shaft 203, specifically, the transmission piece 103 is sleeved on the left end of the transmission shaft 203 and is fastened by screws; when the counting button 101 is pressed, the counting button 101 drives the transmission piece 103 to rotate and drives the transmission shaft 103 to rotate;
a bayonet 1031 is arranged on the transmission piece 103; the locking block 102 is disposed on the unlocking button 100;
when the unlocking button 100 is not pressed, the locking block 102 is clamped on the bayonet 1031;
when the unlocking button 100 is pressed, the locking block 102 moves downwards and lets the bayonet 1031 open;
return springs (not shown in the figure) are respectively arranged in the counting button 101 and the unlocking button 100; the sealing rings (not shown) are provided between the panel 108 and the counter button 101 and between the panel 108 and the unlock button 100.
In the present embodiment, as shown in fig. 3, a molding hole 1031 is provided on the driving strap 103; a first push rod 105 is disposed on the counting button 101, a pin 104 is disposed on the first push rod 105, the pin 104 can slide in the hole 1031, and an E-shaped snap spring (not shown) is disposed on the pin 104 to prevent the pin 104 from falling out of the hole 1031. The hole 1031 is inclined from the upper left to the lower right, when the counting button 101 is pressed, the first push rod 105 is pushed to move downward together with the pin 104, and at the same time, the pin 104 exerts a force on the hole 1031 and pushes the driving plate 103 and drives the driving shaft 203 to rotate counterclockwise (direction B in the figure).
In the present embodiment, as shown in fig. 3, the locking block 102 is connected to the unlocking button 100 by a second push rod 107 and a fixing pin 106; the second push rod 107 is arranged below the unlocking button 100, and the locking block 102 is mounted on the second push rod 107 through the fixing pin 106; an E-shaped clamp spring (not shown) is disposed on the fixing pin 106 to prevent the locking block 102 from falling off.
In the present embodiment, as shown in fig. 1, the number wheel assembly includes a number wheel mounting shaft 300, and a helical gear number wheel 206 and a plurality of number wheels 209 sleeved on the number wheel mounting shaft 300; a limit clamp ring 207 is arranged between the helical gear digit wheel 206 and the digit wheel 209 and between two adjacent digit wheels 209; a driving wheel 204 is arranged on the transmission shaft 203, and the driving wheel 204 is in transmission connection with the helical digital gear 206 through a crankshaft 208.
In the present embodiment, as shown in fig. 1, a mounting bracket 205 is provided inside the housing 302, and the number wheel mounting shaft 300 and the transmission shaft 203 are mounted on the mounting bracket 205; a washer 202 is sleeved on the digit wheel mounting shaft 300, and the washer 202 is positioned between the digit wheel 209 and the inner wall of the mounting bracket 205.
In this embodiment, as shown in fig. 1 and fig. 4, the counter provided by the present invention further includes a zero clearing mechanism, where the zero clearing mechanism includes: a clear knob 301, and a first gear 200 and a second gear 201 which are arranged inside a shell 302 and are meshed with each other; the first gear 200 is mounted on the end of the number wheel mounting shaft 300; the zero clearing knob 301 penetrates through the side surface of the shell 302 and is connected with the second gear 201; the zero clearing knob 301 is flush with the side face of the shell 302, and a linear groove is formed in the zero clearing knob 301; the clearance knob 301 is sealed with the housing 302 by a sealing ring (not shown).
In the present embodiment, as shown in fig. 1, a reading window 1081 is provided on the face plate 108, a transparent plate 109 is provided on the reading window 1081, and the space between the transparent plate 109 and the face plate 108 is sealed by a sealing ring.
In the present embodiment, as shown in fig. 1, a locking piece 1082 is provided on the panel 108, the locking piece 1082 is engaged with the mouth portion of the housing 302, and a sealing ring is provided between the locking piece 1082 and the mouth portion of the housing 302.
The working principle of the invention is as follows:
the counting working principle is as follows: as shown in fig. 1 and 3, after the unlocking button 100 is pressed, the return spring inside the unlocking button 100 is compressed, and the unlocking button 100 simultaneously drives to push the second push rod 107 and drive the locking block 102 to release the bayonet 1031 on the driving strap 103, thereby implementing the unlocking function. At this moment, the counting button 101 is pressed again, the return spring inside the counting button 101 is compressed, the first push rod 105 and the pin shaft 104 are pushed to move downwards together, meanwhile, the pin shaft 104 acts on the molding hole 1031 and pushes the transmission piece 103 and drives the transmission shaft 203 to rotate anticlockwise (in the direction B in fig. 3), so that the counter knob is driven to rotate 40 degrees, the inclined teeth number wheel 206 inside the counter rotates one grid, and the counter counts for 1 time. When the pressing force of the unlock button 100 and the count button 101 is removed, the unlock button 100 and the count button 101 move upward by the resilient force of the return spring, and return to the initial state, and the lock block 102 is locked to the bayonet 1031 of the movable piece 103, thereby locking. When an operator only presses the counting button 101, the locking block 102 is still clamped on the bayonet 1031 of the driving strap 103, and the driving strap 103 cannot be driven to rotate, so that the function of preventing misoperation is realized.
And (3) clearing working principle: as shown in fig. 1 and 4, when an operator needs to zero the counter, the zero clearing knob 301 is rotated counterclockwise, at this time, the zero clearing knob 301 drives the second gear 201 to rotate, the second gear 201 drives the first gear 200 to rotate, and the first gear 200 is connected with the zero clearing rotary rod of the counter, so that the function of zero clearing is realized. The zero clearing knob 301 is flush with the side face of the shell 302, when zero clearing treatment is needed, a flat screwdriver with the width smaller than 4mm and the thickness smaller than or equal to 1 mm can be used for twisting zero clearing, and meanwhile, the function of preventing misoperation is achieved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A mechanical press counter with anti-misoperation function comprises a shell (302), a panel (108), a transmission shaft (203) and a digit wheel assembly, wherein the transmission shaft (203) and the digit wheel assembly are arranged inside the shell (302); when the transmission shaft (203) rotates, the number wheel assembly is driven to rotate for counting, and the counting machine is characterized in that: the lock also comprises a transmission piece (103), a locking block (102), a counting button (101) and an unlocking button (100) which are arranged on the panel (108);
the transmission piece (103) is arranged on the transmission shaft (203); when the counting button (101) is pressed down, the counting button (101) drives the transmission sheet (103) to rotate and drives the transmission shaft (103) to rotate;
a bayonet (1031) is arranged on the transmission piece (103); the locking block (102) is arranged on the unlocking button (100);
when the unlocking button (100) is not pressed down, the locking block (102) is clamped on the bayonet (1031);
when the unlocking button (100) is pressed, the locking block (102) moves downwards and allows the bayonet (1031) to be opened.
2. The mechanical press counter with misoperation prevention according to claim 1, wherein: a molding hole (1031) is arranged on the transmission piece (103); a first push rod (105) is arranged on the counting button (101), a pin shaft (104) is arranged on the first push rod (105), and the pin shaft (104) can slide in the molded hole (1031).
3. The mechanical press counter with misoperation prevention according to claim 1, wherein: the locking block (102) is connected with the unlocking button (100) through a second push rod (107) and a fixing pin (106); the second push rod (107) is arranged below the unlocking button (100), and the locking block (102) is installed on the second push rod (107) through the fixing pin (106).
4. The mechanical press counter with misoperation prevention according to claim 1, wherein: the number wheel assembly comprises a number wheel mounting shaft (300), and a helical gear number wheel (206) and a plurality of number wheels (209) which are sleeved on the number wheel mounting shaft (300); a limit retainer ring (207) is arranged between the helical gear digit wheel (206) and the digit wheel (209) and between two adjacent digit wheels (209);
the transmission shaft (203) is provided with a driving wheel (204), and the driving wheel (204) is in transmission connection with the helical gear number wheel (206) through a crankshaft (208).
5. The mechanical press counter with misoperation prevention according to claim 4, wherein: a mounting frame (205) is arranged inside the shell (302), and the digital wheel mounting shaft (300) and the transmission shaft (203) are mounted on the mounting frame (205).
6. The mechanical press counter with misoperation prevention according to claim 4, wherein: still include zero clearing mechanism, zero clearing structure includes: a zero clearing knob (301), a first gear (200) and a second gear (201) which are arranged in a shell (302) and are meshed with each other; the first gear (200) is mounted at the end of the digit wheel mounting shaft (300); the zero clearing knob (301) penetrates through the side surface of the shell (302) and is connected with the second gear (201); the zero clearing knob (301) is flush with the side face of the shell (302); the clearance knob (301) is sealed with the housing (302) through a sealing ring.
7. The mechanical press counter with misoperation prevention according to claim 5, wherein: a washer (202) is sleeved on the digit wheel mounting shaft (300), and the washer (202) is located between the digit wheel (209) and the inner wall of the mounting frame (205).
8. The mechanical press counter with misoperation prevention according to claim 1, wherein: a reading window (1081) is arranged on the panel (108), a transparent plate (109) is arranged on the reading window (1081), and the transparent plate (109) and the panel (108) are sealed through a sealing ring.
9. The mechanical press counter with misoperation prevention according to claim 1, wherein: the panel (108) is provided with a clamping table (1082), the clamping table (1082) is matched with the mouth of the shell (302), and the clamping table (1082) is sealed with the mouth of the shell (302) through a sealing ring.
10. The mechanical press counter with misoperation prevention according to claim 1, wherein: reset springs are respectively arranged in the counting button (101) and the unlocking button (100); the sealing rings are used for sealing between the panel (108) and the counting button (101) and between the panel (108) and the unlocking button (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111243436.XA CN113988250B (en) | 2021-10-25 | 2021-10-25 | Mechanical pressing counter with misoperation prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111243436.XA CN113988250B (en) | 2021-10-25 | 2021-10-25 | Mechanical pressing counter with misoperation prevention function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113988250A true CN113988250A (en) | 2022-01-28 |
| CN113988250B CN113988250B (en) | 2024-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111243436.XA Active CN113988250B (en) | 2021-10-25 | 2021-10-25 | Mechanical pressing counter with misoperation prevention function |
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| Country | Link |
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| CN (1) | CN113988250B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721383A (en) * | 1952-04-16 | 1955-01-05 | Veeder Root Ltd | Improvements in and relating to counting devices |
| DE2141386A1 (en) * | 1970-09-08 | 1972-07-06 | Veeder Industries Inc | Resettable counter |
| US4197452A (en) * | 1978-03-28 | 1980-04-08 | Tamura Electric Works, Ltd. | Counters reset to zero by push buttons |
| US4244515A (en) * | 1978-08-02 | 1981-01-13 | Hokuyo Automatic Co., Ltd. | Preset counter |
| GB8427445D0 (en) * | 1984-01-13 | 1984-12-05 | Meinecke Ag H | Counter mechanism |
| CN201804345U (en) * | 2010-09-21 | 2011-04-20 | 王鸿辉 | Counter |
| CN203458754U (en) * | 2013-07-19 | 2014-03-05 | 慈溪市康玛斯塑料制品厂 | Counting wrist developer |
| CN103835586A (en) * | 2012-11-22 | 2014-06-04 | 高瞩宇 | Mechanical logic device and mechanical numerical code input device and application thereof |
| DE102016106875A1 (en) * | 2016-04-13 | 2017-10-19 | Alfred Von Schuckmann | Hand-held device for dispensing a pharmaceutical substance and counter for such a hand-held device |
| CN107393357A (en) * | 2016-05-16 | 2017-11-24 | 爱德华·钱德瑞·苏庇亚多 | Learning device in finger ring |
| CN108853873A (en) * | 2018-06-29 | 2018-11-23 | 白健平 | A kind of exercise rope skipping |
| CN211906337U (en) * | 2020-06-10 | 2020-11-10 | 焦李艳 | Disinfection gel counter |
| CN112508160A (en) * | 2020-11-11 | 2021-03-16 | 中国航空工业集团公司洛阳电光设备研究所 | Anti-misoperation purely mechanical locking mechanism |
| CN113437430A (en) * | 2020-03-04 | 2021-09-24 | 广东博智林机器人有限公司 | Locking mechanical system and battery compartment |
-
2021
- 2021-10-25 CN CN202111243436.XA patent/CN113988250B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721383A (en) * | 1952-04-16 | 1955-01-05 | Veeder Root Ltd | Improvements in and relating to counting devices |
| DE2141386A1 (en) * | 1970-09-08 | 1972-07-06 | Veeder Industries Inc | Resettable counter |
| US4197452A (en) * | 1978-03-28 | 1980-04-08 | Tamura Electric Works, Ltd. | Counters reset to zero by push buttons |
| US4244515A (en) * | 1978-08-02 | 1981-01-13 | Hokuyo Automatic Co., Ltd. | Preset counter |
| GB8427445D0 (en) * | 1984-01-13 | 1984-12-05 | Meinecke Ag H | Counter mechanism |
| CN201804345U (en) * | 2010-09-21 | 2011-04-20 | 王鸿辉 | Counter |
| CN103835586A (en) * | 2012-11-22 | 2014-06-04 | 高瞩宇 | Mechanical logic device and mechanical numerical code input device and application thereof |
| CN203458754U (en) * | 2013-07-19 | 2014-03-05 | 慈溪市康玛斯塑料制品厂 | Counting wrist developer |
| DE102016106875A1 (en) * | 2016-04-13 | 2017-10-19 | Alfred Von Schuckmann | Hand-held device for dispensing a pharmaceutical substance and counter for such a hand-held device |
| CN107393357A (en) * | 2016-05-16 | 2017-11-24 | 爱德华·钱德瑞·苏庇亚多 | Learning device in finger ring |
| CN108853873A (en) * | 2018-06-29 | 2018-11-23 | 白健平 | A kind of exercise rope skipping |
| CN113437430A (en) * | 2020-03-04 | 2021-09-24 | 广东博智林机器人有限公司 | Locking mechanical system and battery compartment |
| CN211906337U (en) * | 2020-06-10 | 2020-11-10 | 焦李艳 | Disinfection gel counter |
| CN112508160A (en) * | 2020-11-11 | 2021-03-16 | 中国航空工业集团公司洛阳电光设备研究所 | Anti-misoperation purely mechanical locking mechanism |
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| Publication number | Publication date |
|---|---|
| CN113988250B (en) | 2024-01-19 |
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