CN212775879U - Misoperation preventing executing mechanism mode switching device with lead sealing structure - Google Patents
Misoperation preventing executing mechanism mode switching device with lead sealing structure Download PDFInfo
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- CN212775879U CN212775879U CN202021045706.7U CN202021045706U CN212775879U CN 212775879 U CN212775879 U CN 212775879U CN 202021045706 U CN202021045706 U CN 202021045706U CN 212775879 U CN212775879 U CN 212775879U
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- lead sealing
- protective cover
- switching device
- mode switching
- hole
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Abstract
The invention provides an executing mechanism mode switching device with misoperation prevention and a lead sealing structure, which comprises a protective cover arranged on a machine body, wherein a matching cavity is arranged in the protective cover, and the lower end of a switching wrench matched with the inner wall of the matching cavity is propped against an operating rod of an executing mechanism; the switching wrench comprises a rod section and a driving section at the lower part of the rod section, and the driving section is provided with an eccentric structure protruding out of the rod section; the switching wrench is fixed on the machine body through the rotating shaft. The switching wrench has reasonable structural design, the switching wrench is protected by the protective cover, the protective cover and the limiting piece are in stable matching relation, the switching wrench can stably keep the original state when the protective cover is not detached from the machine body, meanwhile, the protective cover and the switching wrench form a fixing effect by the limiting piece, misoperation can be effectively avoided, and the reliability is high.
Description
Technical Field
The invention belongs to the technical field of valve equipment, and particularly relates to an executing mechanism mode switching device with a lead sealing structure and capable of preventing misoperation.
Background
A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate by flowing or stopping a medium in a pipe or an apparatus. The valve can be controlled by adopting various transmission modes, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic hydraulic, electrohydraulic, pneumatic and hydraulic, and the like, valves with manual control structures are reserved on the market, the valves work in the non-manual mode in a normal state, and when sudden conditions occur or the non-manual mode fails, the manual mode needs to be opened emergently. For enterprises or units in some specific fields, a valve with manual mode switching is adopted to ensure production safety or monitor compliant production, and sometimes the valve is used as an important content in a market supervision authority or security inspection. In some valves, the common manual working mode switching is realized by pulling the switching rod, but the switching rod is mostly directly exposed, and even if a dust cover is added, the misoperation or the utilization by lawbreakers cannot be completely avoided. Since the manual operation has certain disadvantages, such as insufficient control accuracy, and the manual mode cannot be automatically switched to the normal control mode after being switched to the manual mode, the manual operation is usually switched to in a specific situation. Therefore, it is necessary to investigate how to prevent the erroneous operation of the manual switching device, and to improve the existing structure in a targeted manner.
Disclosure of Invention
In view of the above, the present invention provides an actuator mode switching device with a lead seal structure for preventing misoperation, which overcomes the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an anti-misoperation executing mechanism mode switching device with a lead sealing structure comprises a protective cover arranged on a machine body, wherein a matching cavity is arranged in the protective cover, and the lower end of a switching wrench matched with the inner wall of the matching cavity is propped against an executing mechanism operating rod;
the switching wrench comprises a rod section and a driving section at the lower part of the rod section, and the driving section is provided with an eccentric structure protruding out of the rod section; the switching wrench is fixed on the machine body through a rotating shaft;
the machine body is provided with an ear plate, and ear plate holes are formed in the ear plate; the protective cover is provided with side plates corresponding to the ear plates, and side plate holes are formed in the side plates; a lead sealing rope is arranged between the shield and the machine body.
Furthermore, a matching hole is formed in the eccentric structure, a hollow part is arranged on the shield corresponding to the matching hole, a limiting part is inserted into the matching hole of the eccentric structure, and a cap body part is arranged at one end, located at the outer side of the hollow part, of the rod body part of the limiting part; the one end that the body of rod part is close to the cap body part is equipped with the via hole, the lead sealing rope passes the via hole on otic placode hole, curb plate hole and the locating part simultaneously.
Further, the rod body part of the limiting piece protrudes 1-5mm from the upper surface of the shield.
Further, the guard shield is in threaded connection with the machine body.
Further, the hollow-out adopts a round hole or a long hole.
Further, the height of the rod body part of the limiting piece is 1.5-2 times of that of the eccentric structure part.
Furthermore, the lower end surface of the eccentric structure is of an arc structure.
Furthermore, a transverse groove matched with the switching wrench is arranged on the operating lever of the actuating mechanism.
Furthermore, a blind hole is adopted as a matching hole on the eccentric structure.
Compared with the prior art, the invention has the following advantages:
the switching wrench has reasonable structural design, the switching wrench is protected by the protective cover, the protective cover and the limiting piece are in stable matching relation, the switching wrench can stably keep the original state when the protective cover is not detached from the body, meanwhile, the protective cover and the switching wrench form a fixing effect by the limiting piece, misoperation can be effectively avoided, the protective cover cannot rotate under the condition that the limiting piece is not removed, and the reliability is high.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view illustrating a position limiting element according to an embodiment of the present invention;
FIG. 3 is a schematic view of a switching wrench according to an embodiment of the present invention;
FIG. 4 is a schematic external view of a shield according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a shield in an embodiment of the invention;
fig. 6 is a schematic diagram of a position limiter according to an embodiment of the present invention.
Description of reference numerals:
1-body; 2-a shield; 3-a matching cavity; 4-switching the wrench; 5-an actuator lever; 6-pole segment; 7-a drive section; 8-an eccentric structure; 9-a mating hole; 10-hollowing out; 11-a stop; 12-a shank portion; 13-a cap portion; 14-a via hole; 15-ear plate; 16-otic placode holes; 17-side plates; 18-side plate holes; 19-lead sealing the rope; 20-rotating shaft.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
An anti-misoperation execution mechanism mode switching device with a lead sealing structure is disclosed, as shown in fig. 1 to 6, and comprises a shield 2 arranged on a machine body 1, a matching cavity 3 is arranged in the shield, and the lower end of a switching wrench 4 matched with the inner wall of the matching cavity is propped against an execution mechanism operating rod 5; generally, the shield is screwed on the machine body, specifically, a thread can be arranged at the lower opening end of the shield, and a thread matched with the shield is arranged on the machine body (end cover) to form a threaded connection structure.
The switching wrench comprises a rod section 6 and a driving section 7 at the lower part of the rod section, wherein the driving section is provided with an eccentric structure 8 protruding out of the rod section; the switching wrench is fixed on the machine body through a rotating shaft 20;
a through hole 14 is formed in one end, close to the cap body, of the rod body part, an ear plate 15 is arranged on the machine body, and an ear plate hole 16 is formed in the ear plate; the protective cover is provided with a side plate 17 corresponding to the ear plate, and the side plate is provided with a side plate hole 18; a lead sealing rope 19 is arranged between the shield and the machine body.
In an alternative embodiment, in order to further prevent the misoperation, as shown in fig. 2, a matching hole 9 may be vertically formed on the eccentric structure, a hollow 10 is formed on the shield corresponding to the matching hole, a limiting member 11 is inserted into the matching hole of the eccentric structure, and a cap portion 13 is formed at one end of a rod portion 12 of the limiting member, which is located at the outer side of the hollow; the lead sealing rope simultaneously passes through the lug plate holes, the side plate holes and the via holes in the limiting parts, so that the state among the protective cover, the limiting parts and the machine body is effectively guaranteed, the condition of illegal damage (operation) or misoperation can be found in time, and the production safety is facilitated or the production is facilitated to be carried out orderly and smoothly.
The rod body part of the limiting piece protrudes out of the upper surface of the shield by 1-5 mm. Namely, a clearance of about 1-5mm is kept between the cap body part and the protective cover, so that the limiting piece is convenient to take out, the protective cap is disassembled, and the manual mode is switched.
The upper hollow part adopts a round hole or a long hole. Specifically, can prefer to adopt the slot hole of arcuation, allow the guard shield to have little rotation volume, simultaneously, lead seals the rope length and also has corresponding surplus, and this rotation range does not influence actual operating condition, and such structural design more accords with production actual conditions, avoids lead to seal the structure and is too sensitive, causes the error feedback, and simultaneously, utilizes the locating part to carry on spacingly to the guard shield, avoids the guard shield maloperation and unscrews and cause the loss, and the reliability is higher.
In an optional embodiment, the height of the rod section of the switching wrench is 1.5-2 times of the height of the driving section (eccentric structure part), after the limiting part is pulled out (at the moment, the lead sealing rope is disconnected and fails), the protective cover can be screwed to be separated from the machine body, at the moment, the protective cover can not be taken down, and the protective cover is used as a handle sleeved outside the switching wrench.
Generally, the lower end surface of the eccentric structure is in an arc structure. The upper end of the operating lever of the actuating mechanism is provided with a transverse groove matched with the driving section of the switching wrench. When the manual mode is not switched, the driving section can be matched with the bottom of the driving section (generally, the driving section can be designed into a flat structure and can be stably matched with the transverse groove), when the switching wrench is pulled to switch the manual mode, the lower end face of the eccentric structure in an arc shape is utilized to realize smooth rotation, so that the eccentric structure part can be matched with the transverse groove, and the switching wrench is convenient to drive the actuating lever of the actuating mechanism to act.
The switching wrench has reasonable structural design, the switching wrench is protected by the protective cover, the protective cover and the limiting piece are in stable matching relation, the switching wrench can stably keep the original state when the protective cover is not detached from the body, meanwhile, the protective cover and the switching wrench form a fixing effect by the limiting piece, misoperation can be effectively avoided, the protective cover cannot rotate under the condition that the limiting piece is not removed, and the reliability is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (9)
1. The utility model provides an prevent maloperation and have actuating mechanism mode switching device of lead sealing structure which characterized in that: the switching wrench comprises a protective cover arranged on a machine body, wherein a matching cavity is arranged in the protective cover, and the lower end of the switching wrench matched with the inner wall of the matching cavity is propped against an actuating mechanism operating lever;
the switching wrench comprises a rod section and a driving section at the lower part of the rod section, and the driving section is provided with an eccentric structure protruding out of the rod section; the switching wrench is fixed on the machine body through a rotating shaft;
the machine body is provided with an ear plate, and ear plate holes are formed in the ear plate; the protective cover is provided with side plates corresponding to the ear plates, and side plate holes are formed in the side plates; a lead sealing rope is arranged between the shield and the machine body.
2. The misoperation preventing actuator mode switching device with the lead sealing structure as claimed in claim 1, wherein: the eccentric structure is provided with a matching hole, the shield is provided with a hollow part corresponding to the matching hole, a limiting part is inserted in the matching hole of the eccentric structure, and a cap body part is arranged at one end, positioned at the outer side of the hollow part, of the rod body part of the limiting part; the one end that the body of rod part is close to the cap body part is equipped with the via hole, the lead sealing rope passes the via hole on otic placode hole, curb plate hole and the locating part simultaneously.
3. The misoperation preventing actuator mode switching device with the lead sealing structure as claimed in claim 2, wherein: the rod body part of the limiting piece protrudes out of the upper surface of the shield by 1-5 mm.
4. The misoperation preventing actuator mode switching device with the lead sealing structure as claimed in claim 2, wherein: the protective cover is in threaded connection with the machine body.
5. The misoperation preventing actuator mode switching device with the lead sealing structure as claimed in claim 2, wherein: the hollow-out adopts a round hole or a long hole.
6. The misoperation preventing actuator mode switching device with the lead sealing structure as claimed in claim 2, wherein: the height of the rod body part of the limiting piece is 1.5-2 times of that of the eccentric structure part.
7. The misoperation preventing actuator mode switching device with the lead sealing structure as claimed in claim 2, wherein: the lower end surface of the eccentric structure is of an arc structure.
8. The misoperation preventing actuator mode switching device with the lead sealing structure as claimed in claim 2, wherein: and a transverse groove matched with the switching wrench is arranged on the operating lever of the actuating mechanism.
9. The misoperation preventing actuator mode switching device with the lead sealing structure as claimed in claim 2, wherein: and the matching hole on the eccentric structure adopts a blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045706.7U CN212775879U (en) | 2020-06-09 | 2020-06-09 | Misoperation preventing executing mechanism mode switching device with lead sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045706.7U CN212775879U (en) | 2020-06-09 | 2020-06-09 | Misoperation preventing executing mechanism mode switching device with lead sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212775879U true CN212775879U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021045706.7U Active CN212775879U (en) | 2020-06-09 | 2020-06-09 | Misoperation preventing executing mechanism mode switching device with lead sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212775879U (en) |
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2020
- 2020-06-09 CN CN202021045706.7U patent/CN212775879U/en active Active
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