CN111188943A - Mechanical pneumatic pressure alarm device - Google Patents
Mechanical pneumatic pressure alarm device Download PDFInfo
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- CN111188943A CN111188943A CN202010139687.2A CN202010139687A CN111188943A CN 111188943 A CN111188943 A CN 111188943A CN 202010139687 A CN202010139687 A CN 202010139687A CN 111188943 A CN111188943 A CN 111188943A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0066—Hydraulic or pneumatic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/06—Audible signalling systems; Audible personal calling systems using hydraulic transmission; using pneumatic transmission
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a mechanical pneumatic pressure alarm device, which is connected and communicated with an air source outlet and comprises: the gas inlet end is connected and communicated with the gas source outlet; the buzzer assembly is detachably connected with the open end, a resonance cavity is arranged in the buzzer assembly, and the resonance cavity is communicated with the gas cavity; the sealing seat is arranged at the bottom of the gas cavity, the outer wall of the sealing seat is in sealing contact connection with the inner wall surface of the gas cavity, the sealing seat is provided with a gas inlet channel penetrating through the upper end and the lower end of the sealing seat, and the gas inlet channel is communicated with the gas cavity; and the valve core is arranged in the air inlet channel and used for closing and opening the air inlet channel. The device utilizes the sympathetic response of gas and resonance chamber, sends the alarm sound like whistle, has reduced the size of alarm structure by a wide margin, and does not need the external power supply, is convenient for integrate the device in pneumatic element.
Description
Technical Field
The invention relates to the technical field of alarm devices in pneumatic systems, in particular to a mechanical pneumatic pressure alarm device which is used for mechanical alarm of a pneumatic element/pipeline within a section of pressure range.
Background
The pneumatic system is widely applied due to the advantages of no environmental pollution, low pipeline flow energy loss, quick transmission reaction and the like, but also has the defects of high sealing requirement and easy leakage. The pressure alarm device for the existing pneumatic system converts pressure into an electric signal through a pressure relay or a pressure transmitter, and then a microcontroller judges whether a buzzer is required to give an alarm sound. Therefore, the general pressure alarm device has a large volume and needs external power supply, which is not favorable for integrated design, especially in the environment without external power supply.
Therefore, how to provide a mechanical pneumatic pressure alarm device which has a small volume, does not need external power supply and is beneficial to be integrated in a pneumatic element is a problem which needs to be solved by the technical personnel in the field.
Disclosure of Invention
In view of the above, the present invention provides a mechanical pneumatic pressure alarm device which is small in size, does not need external power supply, and is easy to integrate in a pneumatic element.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mechanical pneumatic pressure warning device, the device being connected and in communication with an air source outlet, comprising:
the gas source comprises a shell, a gas inlet and a gas outlet, wherein a gas cavity is arranged in the shell, the upper end of the gas cavity is an open end, and the bottom end of the gas cavity is a gas inlet end which is connected and communicated with the gas source outlet;
the buzzer assembly is detachably connected with the open end, a resonance cavity is arranged in the buzzer assembly, and the resonance cavity is communicated with the gas cavity;
the sealing seat is arranged at the bottom of the gas cavity, the outer wall of the sealing seat is in sealing contact with the inner wall surface of the gas cavity, the sealing seat is provided with a gas inlet channel penetrating through the upper end and the lower end of the sealing seat, and the gas inlet channel is communicated with the gas cavity;
and the valve core is arranged in the air inlet channel and used for closing and opening the air inlet channel.
According to the technical scheme, compared with the prior art, the mechanical pneumatic pressure alarm device has the advantages that when gas passes through the gas inlet end, the gas pushes the valve core to move upwards, the gas channel is opened, the gas enters the gas inlet channel and the gas chamber and finally enters the resonance cavity in the buzzer assembly to resonate, whistle-like alarm sound can be given, the size of the alarm structure is greatly reduced, external power supply is not needed, and the alarm device is convenient to integrate into a pneumatic element.
Further, the buzzer assembly comprises:
a buzzer housing;
the horizontal reed is arranged in the middle of the buzzer shell and divides the inner part of the buzzer shell into a lower cavity and the resonance cavity, the end part of the lower cavity, far away from the resonance cavity, is an open end, the open end is detachably connected and communicated with the open end, a gap is reserved between the horizontal reed and the inner cavity wall of the lower cavity, openings communicated with the outside are symmetrically formed in two sides of the cavity wall of the resonance cavity, and the openings are close to the horizontal reed;
the vertical reed is arranged in the resonance cavity, one end of the vertical reed extends out of the upper cavity wall of the resonance cavity and is fixed with the upper cavity wall in a sealing mode, and the other end of the vertical reed penetrates through the horizontal reed and is fixed to the lower cavity in a welding mode.
The beneficial effects who adopts above-mentioned technical scheme to produce are that, the opening can communicate with each other resonance chamber and external atmosphere, plays for resonance chamber pressure release effect, and on the other hand is gaseous to enter into the resonance chamber through the gap after, the gaseous and external gaseous circulation in the resonance chamber of being convenient for to under the effect of horizontal reed and vertical reed, make resonance chamber can send the alarm sound like whistle, thereby realized mechanical type warning, need not external power supply. Two openings are formed in the shell of the buzzer, the pressure relief effect is achieved, and the shell is communicated with the outside atmosphere, so that the buzzer buzzes.
Further, the method also comprises the following steps:
the top of the closing pressure adjusting assembly is detachably mounted in the gas chamber, the bottom end of the closing pressure adjusting assembly is abutted against the top end of the sealing seat, and a mounting through hole penetrating through the upper end and the lower end of the closing pressure adjusting assembly is formed in the closing pressure adjusting assembly;
the top of the opening pressure adjusting assembly is detachably mounted in the mounting through hole, the opening pressure adjusting assembly is abutted to the top of the valve element, the top end of the opening pressure adjusting assembly is provided with a blind hole, the mounting through hole is communicated with the blind hole, and the outer wall of the bottom of the opening pressure adjusting assembly is provided with a communicating hole for communicating the gas chamber with the blind hole.
Adopt the beneficial effect that above-mentioned technical scheme produced to be, the distance that the seal receptacle rises can be adjusted to closing pressure regulating assembly, and then the steerable gas pressure when closing, and the distance that the case rises can be adjusted to opening pressure regulating assembly, and then the steerable gas pressure when opening. The pressure regulating device can be adjusted according to the actual pressure range requirement, so that different use pressure ranges are met, and the applicability is wide.
Further, the closing pressure adjusting assembly includes:
the outer surface of the upper end of the closing spring seat is in threaded connection with the inner wall of the gas chamber, and the middle part of the closing spring seat is provided with the mounting through hole penetrating through the upper end and the lower end of the closing spring seat;
and one end of the closing spring is sleeved at the lower end of the closing spring seat, and the other end of the closing spring is abutted to the top end of the sealing seat.
Further, the closing spring seat includes:
the outer surface of the upper end of the installation cylinder is in threaded connection with the inner wall of the gas chamber;
the upper end of the guide cylinder body is integrally connected and communicated with the lower end of the installation cylinder body, and one end of the closing spring is sleeved on the outer wall of the guide cylinder body and is abutted against the lower end edge of the installation cylinder body;
wherein, the opening pressure adjusting component is in threaded connection with the inner wall of the installation cylinder body.
Furthermore, the hole at the upper end of the mounting cylinder body is of an inner hexagon shape.
Adopt above-mentioned technical scheme to produce beneficial effect is, be convenient for use hexagon socket spanner downthehole rotation regulation closing spring's of hexagon in the compression, and then realize the regulation of seal receptacle rising distance to realize closing pressure size's control.
Further, the opening pressure adjusting assembly includes:
the outer wall of the upper end of the opening spring seat is in threaded connection with the inner wall of the mounting cylinder, the lower end of the opening spring seat extends out of the mounting cylinder, the top end of the opening spring seat is provided with the blind hole, and the outer wall of the opening spring seat close to the lower end of the opening spring seat is provided with the communicating hole;
the opening spring is sleeved at the lower end of the opening spring seat, and the other end of the opening spring is sleeved on the valve core and is abutted against the valve core.
The beneficial effect that adopts above-mentioned technical scheme to produce is that, gaseous through the inlet channel after entering into gas chamber, rethread intercommunicating pore gets into the blind hole, enters into the sympathetic response intracavity at last.
Further, the opener spring seat comprises:
the outer wall of the upper end of the mounting cylinder is in threaded connection with the inner wall of the mounting cylinder, the lower end of the mounting cylinder extends out of the mounting cylinder, the blind hole is formed in the top end of the mounting cylinder, and the communicating hole is formed in the outer wall of the mounting cylinder, which is close to the lower end of the mounting cylinder;
the guide cylinder, guide cylinder one end with installation cylinder lower extreme an organic whole is connected, and the other end downwardly extending, open spring pot head locate on the guide cylinder outer wall and with installation cylinder lower extreme border butt.
Adopt the beneficial effect that above-mentioned technical scheme produced to be, the installation of the guide cylinder easily opening the spring to can lead to opening the spring.
Further, the hole at the upper end of the mounting column is hexagonal.
The beneficial effect that adopts above-mentioned technical scheme to produce is, the downthehole rotation regulation of hexagon socket spanner including is opened the compression of spring in being convenient for use, and then realizes the regulation of case rising distance to realize opening pressure size's control.
Further, the intake passage includes: the large-diameter air inlet and the small-diameter air inlet are arranged up and down and coaxially;
the valve core includes: the other end of the opening spring is sleeved on the outer wall of the guide section and is abutted against the upper end edge of the middle section; the outer wall of the conical section is a sealing surface which is abutted against the edge of the small-diameter air inlet hole;
wherein, the inner wall of the upper section of the large-diameter air inlet hole is provided with internal threads; an annular groove is formed in the outer wall of the sealing seat, and a sealing ring is arranged in the annular groove.
The technical scheme has the beneficial effects that the small-diameter air inlet hole and the conical section form conical seal, and the sealing effect is good; the sealing seat can be connected with the internal thread through a screw, so that the sealing seat can be conveniently taken out of the shell; the sealing ring improves the sealing effect between the sealing seat and the shell.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mechanical pneumatic pressure alarm device provided by the invention.
Fig. 2 is a perspective view of the drawing of fig. 1.
Fig. 3 is an enlarged schematic view of the structure of part a in fig. 1.
Fig. 4 is a schematic structural diagram of a buzzer shell.
FIG. 5 is a schematic view of the structure of the horizontal spring.
Figure 6 is a schematic structural diagram of the vertical reed.
Wherein: 1-shell, 101-gas chamber, 11-open end, 12-gas inlet end, 2-buzzer component, 21-buzzer shell, 211-lower cavity, 212-resonance cavity, 22-horizontal reed, 23-vertical reed, 231-convex plug part, 201-gap, 202-gap, 203-through hole, 3-sealing seat, 301-gas inlet channel, 3011-large diameter gas inlet hole, 3012-small diameter gas inlet hole, 4-valve core, 41-guide section, 42-middle section, 43-conical section, 5-closing pressure regulating component, 501-installation through hole, 51-closing spring seat, 511-installation cylinder, 512-guide cylinder, 52-closing spring and 6-opening pressure regulating component, 601-blind hole, 602-communicating hole, 61-opening spring seat, 611-mounting column, 612-guide column, 62-opening spring and 7-sealing ring.
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.
The embodiment of the invention discloses a mechanical pneumatic pressure alarm device, which is connected and communicated with an air source outlet and comprises:
the gas source device comprises a shell 1, wherein the shell can be cylindrical, a gas chamber 101 is arranged in the shell 1, the upper end of the gas chamber 101 is an open end 11, the bottom end of the gas chamber 101 is a gas inlet end 12, and the gas inlet end 12 is connected and communicated with a gas source outlet;
the buzzer assembly 2 is detachably connected with the open end 11, a resonance cavity 212 is arranged in the buzzer assembly 2, and the resonance cavity 212 is communicated with the gas chamber 101;
the sealing seat 3 can be cylindrical, the sealing seat 3 is arranged at the bottom of the gas chamber 101, the outer wall of the sealing seat 3 is in sealing contact connection with the inner wall surface of the gas chamber 101, the sealing seat 3 is provided with a gas inlet channel 301 penetrating through the upper end and the lower end of the sealing seat, and the gas inlet channel 301 is communicated with the gas chamber 101;
a valve core 4, the valve core 4 being provided in the intake passage 301 for closing and opening the intake passage 301.
The buzzer unit 2 includes:
a buzzer case 21;
the horizontal reed 22 is arranged in the middle of the buzzer shell 21 and divides the interior of the buzzer shell 21 into a lower cavity 211 and a resonance cavity 212, the end part of the lower cavity 211, far away from the resonance cavity 212, is an open end, the open end is in threaded connection and communicated with the open end 11, a gap 201 is reserved between the horizontal reed 22 and the inner cavity wall of the lower cavity 211, two sides of the cavity wall of the resonance cavity 212 are symmetrically provided with notches 202 communicated with the outside, and the notches 202 are arranged close to the horizontal reed 22;
and the vertical spring piece 23 is arranged in the resonance cavity 212, one end of the vertical spring piece 23 extends out of the upper cavity wall of the resonance cavity 212 and is fixed with the upper cavity wall in a sealing manner, and the other end of the vertical spring piece 23 penetrates through and is welded and fixed on the horizontal spring piece 22 and extends towards the lower cavity 211. Specifically, protruding inserting parts 231 are respectively arranged at the upper end and the lower end of the vertical reed 23, through holes 203 are respectively formed in the upper cavity wall of the resonance cavity 212 and the horizontal reed 22, and the two protruding inserting parts 231 are respectively inserted and fixed in the two through holes 203.
The mechanical pneumatic pressure alarm device further comprises:
the top of the closing pressure adjusting assembly 5 is detachably mounted in the gas chamber 101, the bottom end of the closing pressure adjusting assembly 5 is abutted against the top end of the sealing seat 3, and a mounting through hole 501 penetrating through the upper end and the lower end of the closing pressure adjusting assembly 5 is formed in the closing pressure adjusting assembly 5;
the opening pressure adjusting assembly 6 is detachably mounted in the mounting through hole 501, the opening pressure adjusting assembly 6 is abutted to the top of the valve element 4, the blind hole 601 is formed in the top end of the opening pressure adjusting assembly 6, the mounting through hole 501 is communicated with the blind hole 601, and the communicating hole 602 used for communicating the gas chamber 101 and the blind hole 601 is formed in the outer wall of the bottom of the opening pressure adjusting assembly 6.
The closing pressure regulating assembly 5 includes:
the spring seat 51 is closed, the outer surface of the upper end of the spring seat 51 is in threaded connection with the inner wall of the gas chamber 101, and the middle of the spring seat 51 is provided with an installation through hole 501 penetrating through the upper end and the lower end of the spring seat;
and a closing spring 52, one end of the closing spring 52 is sleeved at the lower end of the closing spring seat 51, and the other end of the closing spring 52 is abutted against the top end of the sealing seat 3.
The closing spring seat 51 includes:
the mounting cylinder 511, the outer surface of the upper end of the mounting cylinder 511 is screwed with the inner wall of the gas chamber 101;
the upper end of the guide cylinder 512 is integrally connected and communicated with the lower end of the installation cylinder 511, and one end of the closing spring 52 is sleeved on the outer wall of the guide cylinder 512 and is abutted against the lower end edge of the installation cylinder 511;
wherein, the opening pressure adjusting assembly 6 is screwed with the inner wall of the installation cylinder 511.
The upper end opening of the mounting cylinder 511 is of an internal hexagon shape.
The opening pressure adjusting assembly 6 includes:
the outer wall of the upper end of the opening spring seat 61 is in threaded connection with the inner wall of the mounting cylinder 511, the lower end of the opening spring seat 61 extends out of the mounting cylinder 511, the top end of the opening spring seat 61 is provided with a blind hole 601, and the outer wall of the opening spring seat 61 close to the lower end of the opening spring seat is provided with a communicating hole 602;
and the opening spring 62 is sleeved at the lower end of the opening spring seat 61, and the other end of the opening spring 62 is sleeved on the valve core 4 and is abutted against the valve core 4.
The opening spring seat 61 includes:
the installation column body 611, the outer wall of the upper end of the installation column body 611 is in threaded connection with the inner wall of the installation column body 511, the lower end of the installation column body 611 extends out of the installation column body 511, the top end of the installation column body 611 is provided with a blind hole 601, the outer wall of the installation column body 611 close to the lower end of the installation column body is provided with communicating holes 602, the number of the communicating holes can be 4, and the communicating holes are uniformly distributed on;
one end of the guiding column 612 is integrally connected with the lower end of the mounting column 611, the other end of the guiding column 612 extends downwards, and one end of the opening spring 62 is sleeved on the outer wall of the guiding column 612 and abuts against the lower end edge of the mounting column 611.
The upper end opening of the mounting column 611 is of an internal hexagon shape.
The intake passage 301 includes: a large-diameter air inlet hole 3011 and a small-diameter air inlet hole 3012 which are arranged up and down and coaxially;
the spool 4 includes: the other end of the opening spring 62 is sleeved on the outer wall of the guide section 41 and is abutted against the upper end edge of the middle section 42; the outer wall of the conical section 43 is a sealing surface which is abutted against the hole edge of the small-diameter air inlet 3012;
wherein, the inner wall of the upper section of the large-diameter air inlet hole 3011 is provided with internal threads; an annular groove is formed in the outer wall of the sealing seat 3, and a sealing ring 7 is arranged in the annular groove.
Gas enters from the gas inlet end at the lower end of the shell, when the upward acting force of the gas on the valve core overcomes the acting force of the opening spring, the valve core moves upwards, the sealing surface is separated from the hole edge of the small-diameter gas inlet hole, the gas enters the gas chamber through the gap between the middle section and the large-diameter gas inlet hole and enters the lower cavity of the buzzer shell through the communicating hole, and enters the resonance cavity through the gap between the horizontal reed and the lower cavity to generate resonance, so that the whistle-like alarm sound is given. Because there is the gap throttle effect between the interlude on seal receptacle and the case for seal receptacle upper end and lower extreme produce pressure differential, when gas pressure continues to increase to the power that acts on the seal receptacle can overcome the spring force of closing the spring and the frictional force between sealing washer and the casing, the seal receptacle upward movement forms the awl with the case again and seals, prevents that gas outwards flows out, reports to the police this moment and closes.
This device utilizes the sympathetic response of gas and resonance chamber through awl sealed, gap throttle and spring control to open and close alarming pressure, sends the whistle like the chimes of doom, has reduced alarm structure's size by a wide margin, and does not need the outside power supply, is convenient for integrate the device to pneumatic element in to solved current pneumatic system and used pressure alarm device volume big partially, need the outside power supply, be unfavorable for the problem of integrated pneumatic pressure alarm device in pneumatic element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a pneumatic pressure alarm device of mechanical type, the device just communicates with air supply exit linkage, its characterized in that includes:
the gas source device comprises a shell (1), wherein a gas chamber (101) is arranged in the shell (1), the upper end of the gas chamber (101) is an open end (11), the bottom end of the gas chamber is a gas inlet end (12), and the gas inlet end (12) is connected and communicated with a gas source outlet;
the buzzer assembly (2) is detachably connected with the open end (11), a resonance cavity (212) is arranged in the buzzer assembly (2), and the resonance cavity (212) is communicated with the gas chamber (101);
the sealing seat (3) is arranged at the bottom of the gas chamber (101), the outer wall of the sealing seat (3) is in sealing contact with the inner wall surface of the gas chamber (101) and is connected with the inner wall surface of the gas chamber (101), the sealing seat (3) is provided with a gas inlet channel (301) penetrating through the upper end and the lower end of the sealing seat, and the gas inlet channel (301) is communicated with the gas chamber (101);
a valve element (4), the valve element (4) being disposed within the intake passage (301) for closing and opening the intake passage (301).
2. A mechano-pneumatic pressure warning device according to claim 1, characterized in that said buzzer unit (2) comprises:
a buzzer case (21);
the horizontal reed (22) is arranged in the middle of the buzzer shell (21) and divides the inside of the buzzer shell (21) into a lower cavity (211) and a resonance cavity (212), the end part, far away from the resonance cavity (212), of the lower cavity (211) is an open end, the open end is detachably connected and communicated with the open end (11), a gap (201) is reserved between the horizontal reed (22) and the inner cavity wall of the lower cavity (211), notches (202) communicated with the outside are symmetrically formed in two sides of the cavity wall of the resonance cavity (212), and the notches (202) are arranged close to the horizontal reed (22);
the vertical reed (23) is arranged in the resonance cavity (212), one end of the vertical reed (23) extends out of the upper cavity wall of the resonance cavity (212) and is fixed with the upper cavity wall in a sealing mode, and the other end of the vertical reed (23) penetrates through and is fixed to the horizontal reed (22) in a welding mode and extends towards the lower cavity (211).
3. The mechanical pneumatic pressure warning device of any one of claims 1-2, further comprising:
the top of the closing pressure adjusting assembly (5) is detachably mounted in the gas chamber (101), the bottom end of the closing pressure adjusting assembly (5) is abutted against the top end of the sealing seat (3), and a mounting through hole (501) penetrating through the upper end and the lower end of the closing pressure adjusting assembly (5) is formed in the closing pressure adjusting assembly (5);
the opening pressure adjusting assembly (6), the top of the opening pressure adjusting assembly (6) is detachably mounted in the mounting through hole (501), the opening pressure adjusting assembly (6) is abutted to the top of the valve core (4), the top end of the opening pressure adjusting assembly (6) is provided with a blind hole (601), the mounting through hole (501) is communicated with the blind hole (601), and the outer wall of the bottom of the opening pressure adjusting assembly (6) is provided with a communicating hole (602) for communicating the gas chamber (101) and the blind hole (601).
4. A mechano-pneumatic pressure warning device according to claim 3, characterized in that said closing pressure regulating assembly (5) comprises:
the outer surface of the upper end of the closing spring seat (51) is in threaded connection with the inner wall of the gas chamber (101), and the middle of the closing spring seat (51) is provided with the mounting through hole (501) penetrating through the upper end and the lower end of the closing spring seat;
and one end of the closing spring (52) is sleeved at the lower end of the closing spring seat (51), and the other end of the closing spring (52) is abutted against the top end of the sealing seat (3).
5. The mechano-pneumatic pressure warning device of claim 4, wherein said closing spring seat (51) comprises:
the outer surface of the upper end of the installation cylinder body (511) is in threaded connection with the inner wall of the gas chamber (101);
the upper end of the guide cylinder body (512) is integrally connected and communicated with the lower end of the installation cylinder body (511), and one end of the closing spring (52) is sleeved on the outer wall of the guide cylinder body (512) and is abutted against the lower end edge of the installation cylinder body (511);
wherein, the opening pressure adjusting component (6) is in threaded connection with the inner wall of the installation cylinder body (511).
6. A mechano-pneumatic pressure warning device according to claim 5, characterized in that the upper end opening of the mounting cylinder (511) is of internal hexagonal shape.
7. A mechano-pneumatic pressure warning device according to claim 5, characterized in that said opening pressure regulating assembly (6) comprises:
the outer wall of the upper end of the opening spring seat (61) is in threaded connection with the inner wall of the mounting cylinder body (511), the lower end of the opening spring seat (61) extends out of the mounting cylinder body (511), the top end of the opening spring seat (61) is provided with the blind hole (601), and the outer wall of the opening spring seat (61) close to the lower end of the opening spring seat is provided with the communicating hole (602);
the opening spring (62) is sleeved at the lower end of the opening spring seat (61), and the other end of the opening spring (62) is sleeved on the valve core (4) and is abutted against the valve core (4).
8. A mechano-pneumatic pressure warning device according to claim 7, characterized in that said opener spring seat (61) comprises:
the outer wall of the upper end of the installation column (611) is in threaded connection with the inner wall of the installation cylinder body (511), the lower end of the installation column (611) extends out of the installation cylinder body (511), the top end of the installation column (611) is provided with the blind hole (601), and the outer wall of the installation column (611) close to the lower end of the installation column (611) is provided with the communicating hole (602);
one end of the guide column body (612) is integrally connected with the lower end of the installation column body (611), the other end of the guide column body (612) extends downwards, and one end of the opening spring (62) is sleeved on the outer wall of the guide column body (612) and is abutted against the lower end edge of the installation column body (611).
9. The mechano-pneumatic pressure warning device of claim 8, wherein the mounting cylinder (611) upper end aperture is internal hexagonal.
10. A mechano-pneumatic pressure warning device according to any one of claims 7-9, characterized in that the inlet channel (301) comprises: a large-diameter air inlet hole (3011) and a small-diameter air inlet hole (3012) which are arranged up and down and coaxially;
the spool (4) includes: the opening spring comprises a guide section (41), a middle section (42) and a conical section (43) which are integrally connected in sequence, wherein the other end of the opening spring (62) is sleeved on the outer wall of the guide section (41) and is abutted against the upper end edge of the middle section (42); the outer wall of the conical section (43) is a sealing surface, and the sealing surface is abutted with the hole edge of the small-diameter air inlet hole (3012);
wherein, the inner wall of the upper section of the large-diameter air inlet hole (3011) is provided with internal threads; an annular groove is formed in the outer wall of the sealing seat (3), and a sealing ring (7) is arranged in the annular groove.
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| CN202010139687.2A CN111188943B (en) | 2020-03-03 | 2020-03-03 | Mechanical pneumatic pressure alarm device |
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| CN202010139687.2A CN111188943B (en) | 2020-03-03 | 2020-03-03 | Mechanical pneumatic pressure alarm device |
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| CN111188943B CN111188943B (en) | 2021-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114495405A (en) * | 2021-12-28 | 2022-05-13 | 广州华安消防有限公司 | Fire control detects alarm |
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| WO2006069667A1 (en) * | 2004-12-22 | 2006-07-06 | Brueninghaus Hydromatik Gmbh | Pressure limiting valve comprising a reduced differential surface |
| CN101507852A (en) * | 2009-03-23 | 2009-08-19 | 王中 | Pneumatic pressure low-pressure alarming device |
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| CN202223712U (en) * | 2011-09-28 | 2012-05-23 | 于邦仲 | Low pressure alarm valve |
| CN206572031U (en) * | 2017-02-18 | 2017-10-20 | 江西康琪实业有限公司 | A kind of alarm air valve of rubber vulcanizing tank |
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| US5040477A (en) * | 1990-03-23 | 1991-08-20 | Schiffmacher John A | Warning device for compressed air tanks |
| WO2006069667A1 (en) * | 2004-12-22 | 2006-07-06 | Brueninghaus Hydromatik Gmbh | Pressure limiting valve comprising a reduced differential surface |
| CN201322121Y (en) * | 2008-11-28 | 2009-10-07 | 蒋浩亮 | Pressure adjustable safety valve |
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| CN114495405A (en) * | 2021-12-28 | 2022-05-13 | 广州华安消防有限公司 | Fire control detects alarm |
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| CN111188943B (en) | 2021-08-20 |
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