KR101975887B1 - Gas pressure switch with manual reset structure - Google Patents

Abstract

The present invention relates to a gas pressure switch having a manual resetting structure, in which a diaphragm and a moving plate which are lifted by a pneumatic pressure are provided inside a case and are moved upward by pressurization of a moving plate, And a rotary pushing member which is pivoted by a manual reset switch and a manual reset switch to press the movable terminal upward and downward so that the movement of the movable terminal moved downwardly by the manual reset switch and the manual reset switch can be manually operated.
Therefore, it is possible to manually reset the power supply signal without disassembling the gas pressure switch by manually operating the contacts of the movable terminal and the fixed terminal.

Description

[0001] Gas pressure switch with manual reset structure [0002]

The present invention relates to a gas pressure switch having a manual reset structure, and more particularly, to a gas pressure switch having a manual reset structure, and more particularly to a gas pressure switch having a manual reset structure, And the gas pressure switch which contacts the movable terminal by the movement of the movable terminal and the gas pressure switch which transmits or cuts the power supply signal is not restored to its original state after the pressure is released when the movable terminal having self- A gas pressure switch having a manual reset structure capable of manually moving the movable terminal downward by moving the movable terminal downward by moving the movable terminal upward by using a magnetic force so as to manually reset the signal, will be.

Generally, the gas pressure switch is configured to have a movable terminal moved by a pneumatic pressure of a gas flowing into a case and a fixed terminal contacting the movable terminal to apply a power supply signal.

For example, a diaphragm receiving pressure inside the case is fixed and moved upward and downward by a pneumatic pressure. Point contact of the terminal is performed by pressurization of the diaphragm. At this time, the terminal is connected to a movable terminal The movable terminal is restored to its original state by the self-elastic force or the pressure of another elastic member when the pressure is released.

Such a gas pressure switch is applied or short-circuited depending on whether or not the contact between the fixed terminal and the movable terminal, which is installed inside, is in contact with the pressure switch, as in the conventional pressure switch of Korean Registered Utility Model No. 20-0418615 The pressure switch comprising: a body mounted on the inside of the upper and lower casings, the body including a pair of fixed terminals and movable terminals each having a contact on an end side and each contact being resiliently contacted; A pressure button coupled to the central portion of the body so as to be able to move up and down and to be supported on the bottom surface of the movable terminal by extending a terminal lifting lever on both sides thereof; An elastic supporter which is coupled to the pressure button at right angles and to which an elastic spring inserted and supported in the center of the body is mounted and both sides of the elastic contact spring are resiliently supported on the upper surface of the movable terminal; An operation member supported at the lowermost portion of the pressure button and being vertically moved upward and downward with respect to an external pressure; And a connection hole having a screw hole which is tightly coupled to the bottom surface of the lower casing with a diaphragm interposed therebetween and has one end connected to an external pressure tank.

Accordingly, the pressure of the pressure tank is transmitted to the diaphragm through the connecting port, and the diaphragm moves upward by the convex surface flow caused by the pressure introduced from the outside through the connecting port to the upper portion of the lower casing, So that one side of the pressure lever coupled to the upper side is transported upward. At this time, the spring engaged between the operating piece and the pressure lever maintains a resiliently tensioned state.

When the operating lever is contacted with the pressure lever by upward movement of the pressure lever according to the pressure actuation of the operating piece, the flow pressure of the diaphragm is transmitted to the pressure button mounted inside the body, The terminal lifting levers protruding from both sides of the pressure button elastically upward move the movable terminal so that the contact between the movable terminal and the fault terminal is separated so that the power supply is cut off.

On the other hand, when the pressure falls within a certain range, the pressure applied by the terminal lifting lever of the pressure button is removed from the movable terminal, so that the movable terminal elastically flows and the power by the contact contact between the movable terminal and the fixed terminal is applied .

The conventional pressure switch having such a structure is advantageous in that contact between the contact points can be maintained even if the elasticity of the movable terminal is lost, thereby improving contact efficiency between the terminals.

However, there is a problem in that the structure for transmitting pressure to the movable terminal is very complicated, and when a failure occurs due to various reasons such as a disconnection of each component due to impact or a failure of a component, have.

That is, there has been a problem in disassembling the pressure switch and operating the contacts of the movable terminal and the manual terminal.

In order to solve the problems of the prior art as described above, according to the present invention, when the lower end of the switch presses one side of the pivoting pushing member by pressing a switch protruding to the outside of the case, the other side of the pivoting pushing- The switch is upwardly moved by the magnet formed on the lower end of the switch and the bolt formed on one side of the corresponding one of the pivoting pushing pieces so that one side of the pivoting pushing piece is moved upward by the magnetic force And the other side simultaneously presses the movable terminal downward to move the movable terminal downward so that the contact can be manually operated.

In addition, not only the case where the movable terminal is pressed with the positive pressure by the operation of pushing the switch downward and the upward movement, but also the case where the movable terminal is moved downward by the negative pressure so that the contact is made, It has its purpose.

In order to solve such a technical problem,

A diaphragm fixed to the inside of the case and movable in the diaphragm and the diaphragm moving upward and downward by a pneumatic pressure of the gas to be introduced into the diaphragm and a moving plate fixed to the diaphragm by a pressing projection protruding from a central portion of the moving plate, And a manual reset switch for manually moving the movable terminal to an upper portion or a lower portion is provided at one side of the case, wherein the case has a fixed terminal and a movable terminal fixed And a lower case having a diaphragm and a moving plate seated thereon and coupled to a lower portion of the main body, wherein the main body portion is provided with a resilient And the movable terminal is connected to the diaphragm and the diaphragm, A movable plate contacting the pressing projection of the moving plate by upward and downward movement of the copper plate, and an elastic plate having both ends integrally connected to the movable plate at an upper portion of the movable plate, wherein a through hole is formed between the movable plate and the elastic plate And one end of the manual reset switch comes into contact with an end of the manual reset switch so as to be pivoted about a center pin fixed to the main body, and the other end forms a pivoting pushing member for moving the movable terminal upward and downward .

At this time, the movable terminal is fixed to the movable terminal groove formed on the lower side of the main body part, the contact protrusion is protruded upward and downward from one side of the movable plate, and the cut-away hole is formed by being separated from the contact protrusion, And the end portion is formed in a curved shape curved downward of the cut-off hole, and is integrally formed on one side of the cut-off hole.

The pressure regulating member elastically pressurizes the pressing protrusion of the moving plate through the through holes of the movable plate and the elastic plate and moves along the guide hole formed in the middle of the body portion, A rotatable member rotatably provided on the upper portion of the fixture and spaced apart from the moveable member and fixed to one side of the main body, a spiral protrusion formed around the spiral groove to raise and lower the moveable member, And an elastic spring inserted into the spring groove formed on the lower side of the sphere and having a lower portion elastically pressing the pressing projection of the moving plate.

The manual reset switch has an upper end exposed to the outside through a through hole formed in the upper case and a lower portion passing through a switch guide hole formed in the main body to correspond to one side of the pivoting pushing member, A body provided with a cylindrical body larger than the diameter and having a stepped jaw on the upper side; An elastic spring fixed between the stepped protrusion of the body and the upper surface of the projection formed with the switch guide hole to support the body; And a switch fixing bracket that penetrates the body and is fixed to the body to support the body.

In addition, a packing member having a lower end portion fixed to the through hole and an open lower portion is provided at an upper portion of the body, a magnet is inserted into a lower portion of the body, a bolt is fixed to one side of the rotary pushing- do.

Further, the diaphragm is provided at its center with an insertion protrusion corresponding to a fixing groove formed in the moving plate, a seating portion extending downward from the periphery, a circular plate having fixing protrusions protruded from one side of the outer circumference, A plurality of wing portions protruding from the upper side of the movable plate so as to press the movable plate upward; a circular diaphragm fixing groove is formed in the lower case so that the seating portion can be inserted; And a protrusion groove is formed so that the protrusion is seated.

The gas pressure switch having the manual reset structure according to the present invention presses a switch protruding to the outside of the case, and when the lower end portion of the switch presses one side of the pivoting pushing port, the other side of the pivoting pushing- The switch is upwardly moved by the magnet formed on the lower end portion of the switch and the bolt formed on one side of the corresponding one of the pivoting pushing openings so that one side of the pivoting pushing port is moved upward by the magnetic force and the other side It is possible to manually reset the power supply signal without disassembling the gas pressure switch by manually moving the contact point by moving the movable terminal downward by pressing the movable terminal downward.

In addition, not only the case where the movable terminal is pressed with the positive pressure by the operation of pushing the switch downward and the upward movement, but also the case where the movable terminal is moved downward by the negative pressure so that the contact is made, There is an effect.

1 is a perspective view of a gas pressure switch with a manual reset structure according to the present invention;
Figures 2 and 3 are exploded views of a gas pressure switch with a manual reset structure in accordance with the present invention;
4 is an exploded view of a manual reset switch of a gas pressure switch with a manual reset structure according to the present invention;
5 is a partial cross-sectional view of a gas pressure switch with a manual reset structure in accordance with the present invention;
6 is a use state view of a pressure regulating member of a gas pressure switch having a manual reset structure according to the present invention.
7 is an exploded view of another embodiment of a gas pressure switch with a manual reset structure in accordance with the present invention.
Figure 8 is a partial cross-sectional view of another embodiment of Figure 7;
Figure 9 is an operational view of a manual reset switch of a gas pressure switch with a manual reset structure according to the present invention;
10 is an operational view of a manual reset switch in another embodiment of a gas pressure switch with a manual reset structure according to the present invention in accordance with the present invention.

Hereinafter, a gas pressure switch having a manual reset structure according to the present invention will be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

1 to 3, the gas pressure switch 1 having the manual reset structure according to the present invention is fixed to the case 10 and the case 10 and is moved upward and downward by the air pressure of the introduced gas A movable plate 30 which is moved in association with the diaphragm 20 and the diaphragm 20 and a pressing protrusion 31 protruding from the center of the movable plate 30, And a manual reset switch 100 for manually moving one side of the movable terminal 40 to the upper side or the lower side is provided on one side of the case 10.

The case 10 includes an upper case 11 covering an upper portion of the main body 70 to which the fixed terminal 50 and the movable terminal 40 are fixed and a gas inflow hole 12a at the center, And a lower case 12 on which the diaphragm 20 and the moving plate 30 are mounted and which is coupled to the lower portion of the main body 70. The main body 70 includes the moving plate 30 A pressure regulating member 60 elastically pressing is provided,

The movable terminal 40 includes a movable plate 41 which is brought into contact with the pressing projection 31 of the moving plate 30 by upward and downward movement of the diaphragm 20 and the moving plate 30, 41a and 42a are formed in the middle of the movable plate 41 and the elastic plate 42. The through holes 41a and 42a are formed in the middle of the movable plate 41 and the elastic plate 42,

One end of the manual reset switch 100 contacts the end of the manual reset switch 100 and is pivoted about a center pin 81 fixed to the main body 70, A rotary pushing-out port 80 for moving the upper and lower portions thereof upward and downward is formed.

Hereinafter, the constitution of each part of the present invention will be described in detail.

The upper case 11 and the main body 70 are respectively formed of a bolt and the like, and the upper case 11 and the lower case 12, A bolt insertion hole 11a is formed at one side of the upper case 11 so that the bolt insertion hole 11a can be coupled with the bolt insertion hole 11a, And the lower case 12 may be formed with a bolt insertion hole 12b which can be coupled to the body 70 by bolts or the like.

5, the rivet may be inserted into the bolt insertion hole 12b to engage the main body 70 with the lower case 12, and the coupling of the case 10 described above may be combined with other well- Can be combined by a joining method.

At this time, the upper part of the manual reset switch 100 is exposed to the outside through the through hole 11b formed at one side of the upper case 11, so that the operation of the manual reset switch 100 The movable terminal 40 fixed within the case 10 can be moved. That is, the pressure switch can be reset to the initial state.

2 and 3, the main body portion 70 is formed so as to protrude upward and downward so that the perimeter thereof can be engaged with the upper case 11 and the lower case 12, Member 60, and the lower portion of the manual reset switch 100 is penetrated to one side.

A movable terminal groove 72 in which the movable terminal 40 is seated and fixed is formed on the lower surface of the main body portion 70 and the upper surface of the movable terminal groove 72 and the lower surface of the main body portion 70 A fixed terminal groove 74 is formed at one side of the surface to which the fixed terminal 50, which is in contact with the movable terminal 40, is seated and fixed.

That is, the fixed terminal 50 is positioned on the upper and lower sides of the movable terminal 40, and the contact protrusions 45 protruding upward and downward at the ends by the upward and downward movement of the movable terminal 40 are fixed Contact with the contact protrusion 51 of the terminal 50 to apply the ON / OFF signal.

On the other hand, on the opposite side of the fixed terminal 50, there is formed a pressing groove 73 for fixing the rotating pressing member 80 which is rotated by the lifting and lowering of the manual reset switch 100, The center pin 81 passing through the sphere 80 is fixed.

Of course, the pressing groove 73 is formed in the oblique direction in the fixed terminal groove 74 so that one side of the rotating pressing part 80 is located on the upper surface or the lower surface of the movable plate 41 of the movable terminal 40 .

A gas inlet hole 12a is formed in a central portion of the lower case 12 and a gas moving groove is formed in the lower case 12 so that gas can be uniformly spread to the upper portion of the lower case 12 about the gas inlet hole 12a 12c are formed in a cross shape.

A circular and radially protruding partition wall 12d is formed on the upper surface of the lower case 12 and a seating portion 23 formed around the diaphragm 20 can be inserted outside the partition wall 12d A circular diaphragm fixing groove 12e is formed so that the gas introduced from the central portion spreads evenly so that the lower surface of the diaphragm 20 can be pressed with a uniform pressure.

The movable terminal 40 is fixed to the movable terminal groove 72 formed on the lower side of the main body 70. The contact protrusion 45 protrudes upward and downward from one side of the movable plate 41, A cutout hole 46 is formed to be spaced apart from the protrusion 45. The elastic plate 42 extends upwardly from one side of the movable plate 41 and extends to the lower side of the cutoff hole 46 And is integrally formed on one side of the cut-off hole 46. The cut-

Therefore, when the movable plate 41 has a self-elastic force due to the elastic force of the curved connecting portion of the elastic plate 42, when the positive pressure is applied to the diaphragm 20, The movable plate 31 presses the movable plate 41 upward and is pressed downward by the tensile force of the resilient spring 64 of the pressure regulating member 60 which contacts the pressing protrusion 31 when negative pressure is applied .

That is, the contact protrusions 45 are brought into contact with the contact protrusions 51 of the fixed terminal 50 by the upward and downward movement of the movable plate 41.

The pressure regulating member 60 elastically presses the pressing protrusion 31 of the moving plate 30 through the through holes 41a and 42a of the movable plate 41 and the elastic plate 42 A moving part 63 having a spiral groove 63a formed at an upper portion thereof and moving along a guide hole 75 formed in the middle of the body part 70 and a moving part 63 separated from the moving part 63, And a spiral protrusion 62a corresponding to the spiral groove 63a is formed around the fixing hole 61 so as to be rotatable on the upper portion of the fixing hole 61, And an elastic spring inserted into a spring groove (63b) formed below the moving tool (63) and having a lower portion elastically pressing the pressing projection (31) of the moving plate (30) (64).

At this time, the fixture 61 is formed in a hexagonal column shape having a disc-shaped head portion 61a at an upper portion thereof and is fixed to the fixation groove 76 formed in the main body portion 70 in a pin fixing manner And the hollow circular rotation hole 62 is rotatably coupled to the head portion 61a by engagement of a projection and a groove.

The spiral projections 62a of the rotary tool 62 and the spiral grooves 63a of the moving tool 63 are engaged with each other so that the rotary tool 62 is rotated to move the moving tool 63 The lower portion of the elastic spring 64 provided at the lower portion of the moving tool 63 presses the pressing protrusion 31 of the moving plate 30 to adjust the intensity of the pressure that the diaphragm 20 moves .

That is, the sensitivity of the pressure applied to the diaphragm 20 is controlled by the pressure regulating member 60 elastically pressing the moving plate 30 from above.

The pressing protrusion 31 of the moving plate 30 extends upward in a cylindrical shape and has a plurality of wing portions 31a which are in close contact with the lower circumferential periphery of the through hole 41a of the movable plate 41 in the movable terminal 40, Is protruded outward.

The upper end of the pressing protrusion 31 protrudes longer than the upper and lower lengths of the wing portion 31a so that the upper end passes through the through hole 41a of the movable plate 41, Respectively. That is, the wing portion 31a protrudes from the lower surface of the movable plate 41 with the upper end of the pressing protrusion 31 passing through the through hole 41a.

When the positive pressure is applied, the wing portion 31a of the pressing protrusion 31 is hooked on the lower surface of the movable plate 41 to move the movable plate 41 upward. When the pressure is released, the elastic spring 64 The diaphragm 20 and the moving plate 30 are restored to the original state (lower) by the elastic force of the movable terminal 40 and the movable plate 41 is also restored to its original state by the self-elastic force of the movable terminal 40.

In this operation, when the movable plate 41 is not restored to its original state due to deformation of the elastic spring 64 or deformation of the movable terminal 40, the manual reset switch 100 can be manually operated and restored.

2 to 5, the manual reset switch 100 of the gas pressure switch 1 having the manual reset structure according to the present invention as described above has an upper end connected to the upper case 11 through the through- And the lower part is connected to one side of the pivotal pressing part 80 through a switch guide hole 77a formed in the main body part 70 so that the diameter of the lower part is larger than the diameter of the upper part A body 110 formed as a large cylindrical body and having a stepped protrusion 112 formed on an upper side thereof and a protrusion 77 formed between the stepped protrusion 112 of the body 110 and the protrusion 77 formed with the switch guide hole 77a And a switch fixing bracket 120 fixed to the body portion 70 and supporting the body 110. The switch fixing bracket 120 is fixed to the main body portion 70, .

" 형태로 절곡되어 하부 수평부(121)가 상기 본체부(70)에 볼트 결합 등의 방법으로 고정되고, 상부 수평부(122)의 하부면이 상기 돌출부(77)의 상부면에 밀착되도록 형성되고, 상부 수평부(122)에는 상기 몸체(110)가 관통될 수 있도록 홈부(122a)가 형성된다.The switch fixing bracket 120 is formed at one side of the main body 70 with a lower portion of the body 110 inserted therein to form a switch guide hole 77a serving as a movement guide. So that the upper portion can be positioned on the upper surface of the projection 77. [

And the lower horizontal portion 121 is fixed to the body portion 70 by a method such as bolt connection and the lower surface of the upper horizontal portion 122 is formed to be in close contact with the upper surface of the protruding portion 77 And the upper horizontal part 122 is formed with a groove part 122a through which the body 110 can pass.

A spring groove 122b is formed on an upper surface of the horizontal portion 122 so that the lower portion of the elastic spring 130 can be seated.

A packing member 150 having a lower end portion fixed to the through hole 11b and an open lower portion is provided at an upper portion of the body 110. A magnet 113 is inserted into a lower portion of the body 110, A bolt 82 is fixed to one side of the pivotal pushing member 80 so as to correspond to the magnet 113.

At this time, the lower part of the packing member 150 is fixed to the through hole 11b, and the lower part of the packing member 150 is opened to insert the upper part of the body 110.

When the body 110 is pushed upward and one side of the pivoting press 80 provided with the bolt 82 is attached to the magnet 110 of the body 110 by the magnetic force, The body 110 is restored to the upper position by the restoring force of the elastic spring 130 and at the same time the one side of the pivotal pushing-out port 80 rises and the pivotal pushing- The other side of the pivoting pressurizing member 80 is lowered about the center pin 81 fixed to the pressing groove 73 and the movable plate 41 of the movable terminal 40 raised by the positive pressure is manually moved downward do.

Of course, the other side of the pivotal pushing member 80 is positioned between the movable plate 41 and the elastic plate 42 of the movable terminal 40.

In the gas pressure switch 1 having the manual reset structure according to the present invention, the diaphragm 20 has an insertion protrusion 22 corresponding to the fixing groove 32 formed in the moving plate 30 at the center thereof And a mounting portion 23 extending from the periphery to the lower portion of the movable plate 41. The movable plate 41 is provided with a plurality of blades 32 on the outer circumferential surface thereof so as to press the movable plate 41 from above, A circular diaphragm fixing groove 12e is formed in the lower case 12 so that the seat portion 23 can be inserted.

The diaphragm 20 is preferably made of a soft rubber material or a silicone material. The diaphragm 30 is made of a synthetic resin material. The diaphragm 20 is fixed to the fixing groove 32 of the diaphragm 30, The diaphragm 20 and the moving plate 30 are moved up and down together with the pneumatic pressure applied to the diaphragm 20 in a state where the insertion protrusion 22 of the diaphragm 20 is inserted and fixed.

In addition, as shown in Figs. 7 and 8, another embodiment of the gas pressure switch 1 having the manual reset structure according to the present invention is a structure in the case where negative pressure is applied to the case 10.

That is, the coupling relationship with the structure of the case 10, the movable terminal 40, the fixed terminal 50, and the diaphragm 20 is the same as that in the case where the positive pressure is applied, The pressing projection 31 of the moving plate 30 is inserted into the lower portion of the main body portion 70 while the upper portion of the movable plate 41 is elastically pressed through the through hole 42a of the plate 42, A moving hole 63 which moves along the guide hole 75 formed in the middle of the main body 70 and has a spiral groove 63a formed at an upper portion thereof, And a spiral protrusion 62a corresponding to the spiral groove 63a is formed on the upper portion of the fixing hole 61 and the rotary shaft 62 An elastic spring 64 inserted into a spring groove 63b formed on the lower side of the moving tool 63 and a spring 63 provided below the elastic spring 64, And a spring cap 65 inserted into the upper portion of the base 31 to press the movable plate 41 from the upper portion to the lower portion.

At this time, the shape of the moving tool 63, the fixing tool 61, and the rotating tool 62 can be adjusted in the pressing force of the moving plate 30 as in the case where positive pressure is applied.

7, the spring cap 65 includes a head portion 65a whose upper portion is inserted into the elastic spring 64 and a pressing portion 66a formed integrally with the lower portion of the head portion 65a, And the lower portion is opened so that the pressing projection 31 of the moving plate 30 is inserted.

The pressing protrusion 31 of the moving plate 30 penetrates through the through holes 41a and 42a of the movable plate 41 and the elastic plate 42 of the movable terminal 40 so that the spring cap 65, The diaphragm 20 and the moving plate 30 are moved downward and the pressing portion 65b of the spring cap 65 is moved by the tensile force of the elastic spring 64 to the movable So that the upper surface of the plate 41 is pressed.

Of course, the diameter of the pressing portion 65b of the spring cap 65 is formed to be larger than the diameter of the through hole 41a of the movable plate 41.

When the negative pressure is applied, the movable terminal 40 is moved downward. When the manual reset switch 100 is pressed on one side of the pivoting push button 80, the manual reset switch 100 pivots about the center pin 81, The movable plate 41 is pressed upward and the movable terminal 40 is restored to its original shape and is manually reset.

With the structure of the gas pressure switch 1 provided with the manual reset switch described above, even when positive pressure as well as positive pressure is applied, the manual reset switch 100 can be manually reset by a manual operation of the manual reset switch 100 when a failure occurs.

That is, an ON signal due to a malfunction in a failure can be manually converted to an OFF signal, and an initial operation can be performed after the repair.

9 and 10 are diagrams showing an operation state of a gas pressure switch provided with a manual reset switch according to the present invention. FIG. 9 shows an operation state when a positive pressure is applied, FIG. 10 shows an operation FIG.

The operation process will be described with reference to FIGS. 9 and 10. FIG.

8, when the positive pressure is applied, the diaphragm 20 and the moving plate 30 coupled to the diaphragm 20 by the pressure applied to the lower portion of the diaphragm 20, which is seated in the lower case 12, The pressing projection 31 protruding from the center of the moving plate 30 presses the movable terminal 40 to make contact between the movable terminal 40 and the fixed terminal 50 so that the ON / .

For example, when the movable plate 41 of the movable terminal 40 is raised, two of the fixed terminals 50 are formed on the upper and lower portions of the movable terminal 40 to contact the upper fixed terminal 50a, When the pressure is released, the signal is restored to the original state, and is brought into contact with the lower fixed terminal 50b to apply the OFF signal.

However, if a malfunction occurs, such as an ON signal, even if the elastic force of the movable terminal 40 is reduced due to various reasons or when the pressure is released for various reasons, the body 110 of the manual reset switch 100 protruded from one side of the case 10 So that the lower portion of the body 110 is in contact with one side of the rotary pushing tool 80. [

At this time, the upper part of the body 110 is pressed so that the magnets 113 inserted in the lower part of the body 110 and the bolts 82 fixed to one side of the corresponding pivoting press 80 are attached by the magnetic force, When the pressing force applied to the body 110 is released, the body 110 is moved upward by the restoring force of the resilient spring 130 fixed through the body 110, and the pivotal pushing- And the other side of the pivoting pushing member 80 pushes the movable plate 41 downward of the movable terminal 40 to the lower fixed terminal 50b, So that it can be manually reset by the OFF signal.

10, the pressing protrusion 31 of the moving plate 30 is inserted into the spring cap 65 formed at the lower portion of the pressure regulating member 60, so that the spring cap 65 and the moving port 63 When the movable plate 30 is elastically supported on the elastic spring 64 between the movable terminal 40 and the upper fixed terminal 50a and the OFF signal is applied to the movable terminal 40 and the negative pressure is applied to the diaphragm 20, The movable plate 30 coupled to the diaphragm 20 is lowered and the spring cap 65 moved downward by the elastic force of the elastic spring 64 passes through the through hole 42a of the elastic plate 42 The movable plate 41 of the movable terminal 40 is pressed down so that the movable terminal 40 contacts the lower fixed terminal 50b to apply the ON signal.

At this time, the body 110 of the manual reset switch 100 is pressed downward to move the one side of the rotary pushing-out port 80 downward to return the movable terminal 40 to its original state, The pushing tool 80 rotates about the center pin 81 and the other side pushes the movable plate 41 of the movable terminal 40 upward to manually perform resetting.

That is, when sound pressure is applied, a separate magnet and bolt are not provided on one side of the lower portion of the body 110 and the pivoting pushing member 80, and the other side of the pivoting pushing member 80 is provided on the lower side of the movable plate 41 And the other side of the pivotal motion pushing tool 80 moves the movable plate 41 upward by the principle of the leverage, so that it can be restored to the original state.

When an erroneous signal is applied due to a malfunction of the gas pressure switch 1 in such an operation, the gas pressure switch 1 is restored to its original state by operating the manual reset switch 100 without disassembling the gas pressure switch 1 .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary,

1: gas pressure switch 10: case
11: upper case 12: lower case
20: diaphragm 30: moving plate
40: movable terminal 50: fixed terminal
60: pressure regulating member 61: fastener
62: rotating shaft 63: moving shaft
64: elastic spring 65: spring cap
70: main body 80:
81: center pin 82: bolt
100: manual reset switch 110: body
120: switch fixing bracket 130: elastic spring
150: packing member

Claims (9)

A diaphragm 20 fixed to the inside of the case 10 and movable upward and downward by a pneumatic pressure of the introduced gas and a moving plate 30 moved in combination with the diaphragm 20, And a movable terminal 40 whose one end is in contact with the fixed terminal 50 by the pressing of the pressing protrusion 31 protruding from the central portion of the plate 30. The movable terminal 40 And a manual reset switch (100) for manually moving the gas pressure switch
The case 10 includes an upper case 11 covering an upper portion of a main body 70 to which the fixed terminal 50 and the movable terminal 40 are fixed, a gas inlet hole 12a passing through the central portion, And a lower case 12 on which the diaphragm 20 and the moving plate 30 are seated and which is coupled to the lower portion of the main body 70. The main body 70 is provided with a moving plate 30, A pressure regulating member 60 for pressurizing the pressure regulating member 60,
The movable terminal 40 includes a movable plate 41 which is brought into contact with the pressing projection 31 of the moving plate 30 by upward and downward movement of the diaphragm 20 and the moving plate 30, 41a and 42a are formed in the middle of the movable plate 41 and the elastic plate 42. The through holes 41a and 42a are formed in the middle of the movable plate 41 and the elastic plate 42,
One end of the manual reset switch 100 contacts the end of the manual reset switch 100 and is pivoted about a center pin 81 fixed to the main body 70, And a rotary pushing member 80 for moving the movable pushing member 80 upward and downward,
The upper portion of the manual reset switch 100 is exposed to the outside through a through hole 11b formed in the upper case 11 and the lower portion of the manual reset switch 100 passes through a switch guide hole 77a formed in the main body 70, A body 110 provided with a cylindrical body corresponding to one side of the rotary pushing tool 80, the lower diameter of which is larger than the upper diameter, and a stepped step 112 formed on the upper side;
An elastic spring 130 fixed between the stepped protrusion 112 of the body 110 and the upper surface of the protrusion 77 formed with the switch guide hole 77a to support the body 110;
And a switch fixing bracket 120 penetrating the body 110 and fixed to the body portion 70 to support the body 110. A lower end portion of the body 110 is connected to the through- A magnet 113 is attached to a lower portion of the body 110 and the magnet 113 is attached to one side of the pivotal pushing member 80. [ And the bolt (82) is fixed so as to correspond to the gas pressure switch. The method according to claim 1,
The movable terminal 40 is fixed to the movable terminal groove 72 formed on the lower side of the main body 70. The contact protrusion 45 protrudes up and down from one side of the movable plate 41, And the elastic plate 42 is bent and extended upward from one side of the movable plate 41 and has an end bent to the lower side of the cutoff hole 46 And is integrally formed on one side of the incision hole (46). The method according to claim 1,
The pressure regulating member 60 elastically pressurizes the pressing protrusion 31 of the moving plate 30 through the through holes 41a and 42a of the movable plate 41 and the elastic plate 42, A moving part 63 having a spiral groove 63a formed at an upper portion thereof and moving along a guide hole 75 formed at a middle portion of the main body 70 so as to be spaced apart from the moving tool 63, And a spiral protrusion 62a corresponding to the spiral groove 63a is formed on the upper portion of the fixing hole 61 so that the moving tool 63 is moved up and down And the elastic spring 64 is inserted into the spring groove 63b formed at the lower side of the moving tool 63 and the lower portion elastically presses the pressing projection 31 of the moving plate Wherein the gas pressure switch is formed to include a gas pressure switch. delete delete The method according to claim 1,
The diaphragm 20 is formed in a circular plate shape with an insertion protrusion 22 corresponding to the fixing groove 32 formed in the moving plate 30 and a seating portion 23 extending downward from the periphery. And,
A plurality of wing portions 31a protrude outward so as to press the movable plate 41 from above on the outer peripheral surface of the pressing projection 31 of the moving plate 30,
Wherein the lower case (12) is formed with a circular diaphragm fixing groove (12e) so that the seat (23) can be inserted. The method according to claim 1,
The pressure regulating member 60 elastically presses the upper portion of the movable plate 41 through the through hole 42a of the elastic plate 42 and presses the pressing projection 31 of the moving plate 30 A moving part 63 inserted into the main body 70 and having a spiral groove 63a formed on the upper part thereof and moving along the guide hole 75 formed in the middle of the main body part 70, And a spiral protrusion 62a corresponding to the spiral groove 63a is formed around the fixture 61 so as to be rotatable on the upper portion of the fixture 61, And a resilient spring (64) inserted into a spring groove (63b) formed below the moving tool (63), wherein the rotating spring (62) Pressure switch. The method according to claim 1,
The pressure regulating member 60 elastically presses the upper portion of the movable plate 41 through the through hole 42a of the elastic plate 42 and presses the pressing projection 31 of the moving plate 30 A moving part 63 inserted into the main body 70 and having a spiral groove 63a formed on the upper part thereof and moving along the guide hole 75 formed in the middle of the main body part 70, And a spiral protrusion 62a corresponding to the spiral groove 63a is formed around the fixture 61 so as to be rotatable on the upper portion of the fixture 61, An elastic spring 64 inserted into a spring groove 63b formed at a lower side of the moving tool 63 and a spring 62 provided below the elastic spring 64, And a spring cap (65) inserted into the upper portion of the pressing projection (31) to press the movable plate (41) from the upper side to the lower side. Gas pressure switch with manual reset structure. 9. The method of claim 8,
The spring cap 65 is composed of a head portion 65a whose upper portion is inserted into the elastic spring 64 and a pressing portion 65b formed integrally in a disk shape below the head portion 65a, Is opened and the pressing projection (31) of the moving plate (30) is inserted.

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