CN219345139U - Pressure difference alarm device - Google Patents
Pressure difference alarm device Download PDFInfo
- Publication number
- CN219345139U CN219345139U CN202320119086.4U CN202320119086U CN219345139U CN 219345139 U CN219345139 U CN 219345139U CN 202320119086 U CN202320119086 U CN 202320119086U CN 219345139 U CN219345139 U CN 219345139U
- Authority
- CN
- China
- Prior art keywords
- pressure
- connecting seat
- piston
- membrane sleeve
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a differential pressure alarm device, comprising: the cylinder, the upper seal cover of cylinder high pressure end has the end cover seat, the upper seal cover of cylinder low pressure end has the connecting seat, be equipped with the membrane cover in the high pressure end, enclose between membrane cover and the end cover seat and have high pressure cavity, enclose between membrane cover, the connecting seat and have low pressure cavity, set up high pressure channel on the end cover seat, set up low pressure channel on the connecting seat, be equipped with the piston in the cylinder, be equipped with spring and mounting tube between piston and the connecting seat, the mounting tube is fixed mutually with the connecting seat, be equipped with magnetic switch in the mounting tube, the data line of magnetic switch tail end links to each other with the socket, spring one end is supported with the piston and is leaned on, the spring other end is supported with the connecting seat and is equipped with the magnetic ring on the piston. When the pressure difference rises to an alarm value, the pressure difference alarm device can send a signal to the hydraulic control center for alarm, and the real-time pressure difference can be read by aligning the end face of the floating indicating ring with the corresponding value on the pressure difference scale, so that the pressure difference can be checked on site conveniently when equipment is checked.
Description
Technical Field
The utility model relates to the field of hydraulic systems, in particular to a pressure difference alarm device.
Background
The filter in the hydraulic system is used for filtering the medium in the lubricating oil or the fuel oil, and impurities in the medium are filtered on the filter screen through the filter screen in the filter. After the filter has long operating time, the surface can be blocked, and pressure difference can be formed between the front and the back of the filter. The pressure difference is increased to reduce the pressure and flow of the filtered medium, which has serious influence on the following components. The existing solution is that a pressure gauge is arranged in front of and behind the filter, the pressure difference value of the filter is calculated after the pressure value of the pressure gauge is observed, and the filter is cleaned or the filter element is replaced according to the pressure difference value.
In order to realize informatization development, how to directly feed back the pressure difference on the hydraulic system to the operation table in a signal manner has become a problem to be solved. After the pressure difference on the hydraulic system is directly fed back to the operation table surface in a signal mode, frequent work of confirming the pressure difference by personnel can be reduced, and the pressure difference can be timely found after exceeding the requirement, so that measures can be timely taken, and damage to equipment is avoided.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a pressure differential warning device is provided that can signal the pressure differential across the hydraulic system directly back to the operating table.
In order to solve the problems, the utility model adopts the following technical scheme: a differential pressure alarm device comprising: barrel, its characterized in that: the cylinder body is provided with a high-pressure end at one end, a low-pressure end at the other end, an end cover seat is covered on the high-pressure end, a connecting seat is covered on the low-pressure end, a socket is arranged on the connecting seat, a membrane sleeve is arranged in the high-pressure end, the opening edge of the membrane sleeve is abutted against the end face of the high-pressure end, the end cover seat can press the opening edge of the membrane sleeve, the opening edge of the membrane sleeve can be respectively sealed with the end face of the high-pressure end and the end cover seat, a high-pressure chamber is enclosed between the membrane sleeve and the end cover seat, a low-pressure chamber is enclosed between the membrane sleeve, the cylinder body and the connecting seat, the bottom of the membrane sleeve is arched towards the end cover seat to be folded, a folding groove towards the low-pressure chamber is formed at the bottom of the membrane sleeve, a high-pressure channel is formed on the end cover seat, high-pressure oil can enter the high-pressure chamber through the high-pressure channel, the connecting seat is provided with a low-pressure channel, low-pressure oil can enter the low-pressure chamber through the low-pressure channel, a piston positioned in the low-pressure chamber is arranged in the cylinder body, the top of the piston can be inserted into the folding groove, a spring and a mounting pipe are arranged between the piston and the connecting seat, the inner end of the mounting pipe is closed, the outer end of the mounting pipe is fixed with the connecting seat, the mounting pipe is provided with a magnetic switch, the tail end of the magnetic switch penetrates into the connecting seat, a data wire at the tail end of the magnetic switch can be connected with a socket through a wiring channel in the connecting seat, one end of the spring is abutted against the piston, the other end of the spring is sleeved on the mounting pipe and abutted against the connecting seat, a magnetic ring for triggering the magnetic switch is arranged on the piston, under the action of the spring, the top of the piston can be inserted into the folding groove and abutted against the bottom of the membrane sleeve, at the moment, the magnetic ring can not trigger the magnetic switch, the bottom of the membrane sleeve can be gradually unfolded along with the increase of the pressure difference between the inner side and the outer side of the membrane sleeve, the piston can overcome the elastic force of the spring to drive the magnetic ring to move towards the connecting seat under the pushing of the membrane sleeve, and when the pressure difference reaches an alarm value, the magnetic ring can just trigger the magnetic switch.
Further, the foregoing differential pressure alarm device, wherein: a floating indicating ring is sleeved on the outer side of the cylinder body, the floating indicating ring can move along the cylinder body, a metal ring encircling the outer side of the magnetic ring is fixed on the floating indicating ring, the metal ring is attracted by the magnetic ring, the piston can move together with the floating indicating ring, differential pressure scales are arranged on the outer surface of the cylinder body, and when the floating indicating ring moves along with the change of differential pressure on the inner side and the outer side of the membrane sleeve, the real-time differential pressure can be read through the alignment of the end face of the floating indicating ring and the corresponding value on the differential pressure scales.
Further, the foregoing differential pressure alarm device, wherein: a transparent protective shell is arranged on the outer side of the cylinder body, and the floating indication ring is positioned on the inner side of the transparent protective shell and protected by the transparent protective shell.
Further, the foregoing differential pressure alarm device, wherein: the piston is provided with an avoidance hole for avoiding the installation tube, one end of the spring is inserted into the avoidance hole and then abuts against the piston, and the magnetic ring is installed in the avoidance hole.
Further, the foregoing differential pressure alarm device, wherein: a circle of annular groove is formed in the end face of the high-pressure end, a circle of clamping boss is arranged on the opening edge of the membrane sleeve, and the clamping boss is clamped into the annular groove, so that the opening edge of the membrane sleeve can be positioned, and the clamping boss and the membrane sleeve are integrally formed.
The utility model has the advantages that: the differential pressure alarm device can convert differential pressure into an electric signal for transmission, and the real-time differential pressure can be read by aligning the end face of the floating indicating ring with the corresponding value on the differential pressure scale, so that the differential pressure can be checked on site conveniently when equipment is checked, and when the equipment is blocked, the differential pressure alarm device can send a signal to a hydraulic control center for alarm to inform operators of timely treatment after the differential pressure rises to an alarm value.
Drawings
Fig. 1 is a schematic structural diagram of a differential pressure alarm device according to the present utility model.
Detailed Description
The utility model is described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1, the differential pressure alarm device includes: the cylinder 1, one end of the cylinder 1 is a high-pressure end, the other end of the cylinder 1 is a low-pressure end, an end cover seat 2 is covered on the high-pressure end, a connecting seat 3 is covered on the low-pressure end, a socket 4 is arranged on the connecting seat 3, a membrane sleeve 5 is arranged in the high-pressure end, the opening edge of the membrane sleeve 5 is propped against the end face of the high-pressure end, the end cover seat 2 can press the opening edge of the membrane sleeve 5, so that the opening edge of the membrane sleeve 5 can be respectively sealed with the end face of the high-pressure end and the end cover seat 2, a high-pressure chamber 6 is enclosed between the membrane sleeve 5 and the end cover seat 2, a low-pressure chamber 7 is enclosed among the membrane sleeve 5, the cylinder 1 and the connecting seat 3, the bottom of the membrane sleeve 5 is arched towards the end cover seat 2 to be folded, a folding groove 8 towards the low-pressure chamber 7 can be formed at the bottom of the membrane sleeve 5, a high-pressure channel 21 is formed on the end cover seat 2, high-pressure oil can enter the high-pressure chamber 6 through the high-pressure channel 21, a low-pressure channel 31 is arranged on the connecting seat 3, low-pressure oil can enter the low-pressure chamber 7 through the low-pressure channel 31, a piston 9 positioned in the low-pressure chamber 7 is arranged in the cylinder 1, the top of the piston 9 can be inserted into the folding groove 8, a spring 91 and a mounting tube 92 are arranged between the piston 9 and the connecting seat 3, the inner end of the mounting tube 92 is sealed, the outer end of the mounting tube 92 is fixed with the connecting seat 3, a magnetic switch 93 is arranged in the mounting tube 92, the tail end of the magnetic switch 93 penetrates into the connecting seat 3, a data wire at the tail end of the magnetic switch 93 can be connected with the socket 4 through a wiring channel in the connecting seat 3, one end of the spring 91 abuts against the piston 9, the other end of the spring 91 is sleeved on the mounting tube 92 and abuts against the connecting seat 3, the piston 9 is provided with a magnetic ring 94 for triggering the magnetic switch 93, under the action of the spring 91, the top of the piston 9 can be inserted into the folding groove 8 and props against the bottom of the membrane sleeve 5, at the moment, the magnetic ring 94 can not trigger the magnetic switch 93, the bottom of the membrane sleeve 5 can be gradually unfolded along with the increase of the pressure difference between the inner side and the outer side of the membrane sleeve 5, under the pushing of the membrane sleeve 5, the piston 9 can overcome the elastic force of the spring 91 to drive the magnetic ring 94 to move towards the connecting seat 3, and when the pressure difference reaches an alarm value, the magnetic ring 94 can just trigger the magnetic switch 93.
In this embodiment, a floating indicating ring 11 is sleeved on the outer side of the cylinder 1, the floating indicating ring 11 can move along the cylinder 1, a metal ring 12 surrounding the outer side of the magnetic ring 94 is fixed on the floating indicating ring 11, the metal ring 12 is attracted by the magnetic ring 94, so that the piston 9 can move together with the floating indicating ring 11, a differential pressure scale is arranged on the outer surface of the cylinder 1, and when the floating indicating ring 11 moves along with the differential pressure change of the inner side and the outer side of the membrane sleeve 5, the real-time differential pressure can be read by aligning the end surface of the floating indicating ring 11 with the corresponding value on the differential pressure scale.
A transparent protective shell 13 is arranged on the outer side of the cylinder body 1, and the floating indicating ring 11 is positioned on the inner side of the transparent protective shell 13 and is protected by the transparent protective shell 13.
The piston 9 is provided with an avoidance hole 95 for avoiding the mounting tube 92, one end of the spring 91 is inserted into the avoidance hole 95 and then abuts against the piston 9, and the magnetic ring 94 is mounted in the avoidance hole 95.
A circle of annular groove 41 is arranged on the end face of the high-pressure end, a circle of clamping boss 42 is arranged on the opening edge of the membrane sleeve 5, and the clamping boss 42 is clamped into the annular groove 41, so that the opening edge of the membrane sleeve 5 can be positioned, and the clamping boss 42 and the membrane sleeve 5 are integrally formed.
During operation, the hydraulic control center on the operation table is connected with the socket 4 on the differential pressure alarm device through the transmission line with the plug, so that the differential pressure alarm device can transmit signals to the hydraulic control center, the high-pressure channel 21 on the high-pressure end 2 of the differential pressure alarm device is communicated with an oil inlet pipeline of equipment needing to monitor differential pressure, the low-pressure channel 31 on the low-pressure end 3 of the differential pressure alarm device is communicated with an oil outlet pipeline of the equipment needing to monitor differential pressure, the real-time differential pressure can be read by aligning the end face of the floating indicating ring 11 with the corresponding value on the differential pressure scale, the site check of the differential pressure can be facilitated, and after the equipment is blocked, the differential pressure alarm device can send signals to the hydraulic control center for alarm, and an operator is informed of timely processing.
Claims (5)
1. A differential pressure alarm device comprising: barrel, its characterized in that: the cylinder body is provided with a high-pressure end at one end, a low-pressure end at the other end, an end cover seat is covered on the high-pressure end, a connecting seat is covered on the low-pressure end, a socket is arranged on the connecting seat, a membrane sleeve is arranged in the high-pressure end, the opening edge of the membrane sleeve is abutted against the end face of the high-pressure end, the end cover seat can press the opening edge of the membrane sleeve, the opening edge of the membrane sleeve can be respectively sealed with the end face of the high-pressure end and the end cover seat, a high-pressure chamber is enclosed between the membrane sleeve and the end cover seat, a low-pressure chamber is enclosed between the membrane sleeve, the cylinder body and the connecting seat, the bottom of the membrane sleeve is arched towards the end cover seat to be folded, a folding groove towards the low-pressure chamber is formed at the bottom of the membrane sleeve, a high-pressure channel is formed on the end cover seat, high-pressure oil can enter the high-pressure chamber through the high-pressure channel, the connecting seat is provided with a low-pressure channel, low-pressure oil can enter the low-pressure chamber through the low-pressure channel, a piston positioned in the low-pressure chamber is arranged in the cylinder body, the top of the piston can be inserted into the folding groove, a spring and a mounting pipe are arranged between the piston and the connecting seat, the inner end of the mounting pipe is closed, the outer end of the mounting pipe is fixed with the connecting seat, the mounting pipe is provided with a magnetic switch, the tail end of the magnetic switch penetrates into the connecting seat, a data wire at the tail end of the magnetic switch can be connected with a socket through a wiring channel in the connecting seat, one end of the spring is abutted against the piston, the other end of the spring is sleeved on the mounting pipe and abutted against the connecting seat, a magnetic ring for triggering the magnetic switch is arranged on the piston, under the action of the spring, the top of the piston can be inserted into the folding groove and abutted against the bottom of the membrane sleeve, at the moment, the magnetic ring can not trigger the magnetic switch, the bottom of the membrane sleeve can be gradually unfolded along with the increase of the pressure difference between the inner side and the outer side of the membrane sleeve, the piston can overcome the elastic force of the spring to drive the magnetic ring to move towards the connecting seat under the pushing of the membrane sleeve, and when the pressure difference reaches an alarm value, the magnetic ring can just trigger the magnetic switch.
2. The pressure differential alarm device of claim 1, wherein: a floating indicating ring is sleeved on the outer side of the cylinder body, the floating indicating ring can move along the cylinder body, a metal ring encircling the outer side of the magnetic ring is fixed on the floating indicating ring, the metal ring is attracted by the magnetic ring, the piston can move together with the floating indicating ring, differential pressure scales are arranged on the outer surface of the cylinder body, and when the floating indicating ring moves along with the change of differential pressure on the inner side and the outer side of the membrane sleeve, the real-time differential pressure can be read through the alignment of the end face of the floating indicating ring and the corresponding value on the differential pressure scales.
3. The pressure differential alarm device of claim 2, wherein: a transparent protective shell is arranged on the outer side of the cylinder body, and the floating indication ring is positioned on the inner side of the transparent protective shell and protected by the transparent protective shell.
4. A differential pressure alarm apparatus according to claim 1 or 2 or 3, wherein: the piston is provided with an avoidance hole for avoiding the installation tube, one end of the spring is inserted into the avoidance hole and then abuts against the piston, and the magnetic ring is installed in the avoidance hole.
5. A differential pressure alarm apparatus according to claim 1 or 2 or 3, wherein: a circle of annular groove is formed in the end face of the high-pressure end, a circle of clamping boss is arranged on the opening edge of the membrane sleeve, and the clamping boss is clamped into the annular groove, so that the opening edge of the membrane sleeve can be positioned, and the clamping boss and the membrane sleeve are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320119086.4U CN219345139U (en) | 2023-02-06 | 2023-02-06 | Pressure difference alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320119086.4U CN219345139U (en) | 2023-02-06 | 2023-02-06 | Pressure difference alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219345139U true CN219345139U (en) | 2023-07-14 |
Family
ID=87075609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320119086.4U Active CN219345139U (en) | 2023-02-06 | 2023-02-06 | Pressure difference alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219345139U (en) |
-
2023
- 2023-02-06 CN CN202320119086.4U patent/CN219345139U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211550123U (en) | Pilot-operated overflow valve with filtering device | |
| CN219345139U (en) | Pressure difference alarm device | |
| CN211039253U (en) | Bidirectional pipeline filter of hydraulic pipeline system | |
| CN211039243U (en) | Oil pressure detection alarm and control mechanism | |
| CN204073610U (en) | Tubular filter | |
| CN102536775B (en) | Plunger pump performance test board used for ABS (Anti Lock Brake System) pressure regulator | |
| CN204783957U (en) | Embedded pneumatic cylinder of automatic monitoring internal leakage | |
| CN102980718A (en) | On-line pressure detecting method and device thereof | |
| CN210686514U (en) | Hydraulic valve group with simple detachable filtering device | |
| CN210106691U (en) | Diaphragm type safety valve | |
| CN219284541U (en) | Pressure sensor with installation protection function | |
| CN218117999U (en) | Water hammer eliminating device for diaphragm pump of water plant | |
| CN110617056A (en) | Triggering method and device for liquid level test of high-pressure oil-gas well | |
| CN215539031U (en) | Visual alarm pilot filter element | |
| CN215276143U (en) | Static pressure transmission filter | |
| CN214145793U (en) | Triple hydraulic pump for large machinery | |
| CN102175384B (en) | Isolated pressure-limiting protective pressure acquisition device | |
| CN212775001U (en) | Balanced switching valve of binocular filter | |
| CN211008623U (en) | Percussion device for liquid level test of high-pressure oil-gas well | |
| CN204865218U (en) | Filter subassembly that can report to police and shutting down mutually | |
| CN210623282U (en) | Precision filter for excavator | |
| CN210660390U (en) | Filter seat and filter with same | |
| CN204755256U (en) | Diaphragm compressor with filtration system admits air | |
| CN214091808U (en) | Constant-pressure air release device and system | |
| CN208505520U (en) | Grouting pressure conduction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |