CN213985500U - High static pressure differential pressure gauge with overload protection function - Google Patents
High static pressure differential pressure gauge with overload protection function Download PDFInfo
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- CN213985500U CN213985500U CN202022565636.4U CN202022565636U CN213985500U CN 213985500 U CN213985500 U CN 213985500U CN 202022565636 U CN202022565636 U CN 202022565636U CN 213985500 U CN213985500 U CN 213985500U
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Abstract
The utility model relates to a differential pressure gauge technical field, in particular to a high static pressure differential pressure gauge with overload protection function, which comprises a differential pressure gauge main body, wherein the air inlet end of the differential pressure gauge main body is communicated with a protection device, the protection device comprises a pressure relief pipe, a first flow guide pipe, a second flow guide pipe, a pressure relief shell, a third flow guide pipe, a scale mark, a handle, an adjusting screw, a threaded cylinder, a movable plate, a first spring, a pressure relief block, a sealing ring, a flow guide hole and a bearing, in the utility model, through the arranged pressure relief pipe, the pressure relief shell, the third flow guide pipe, the scale mark, the handle, the adjusting screw, the threaded cylinder, the movable plate, the spring, the sealing ring and the flow guide hole, a worker can adjust the compression amount of the first spring through the effect of the adjusting screw, thereby realizing the adjustment of the first spring to the thrust of the pressure relief block, when the differential pressure gauge main body is overloaded, the flow guide hole at the inner side of the pressure relief block can be aligned with the second flow guide pipe, the medium is discharged from the pressure relief pipe, and the amount of the medium entering the differential pressure gauge main body is reduced.
Description
Technical Field
The utility model relates to a differential pressure gauge technical field specifically is a high static pressure differential pressure gauge with overload protection function.
Background
At present, the high static pressure differential pressure gauge is widely applied to measuring parameters such as differential pressure, flow and the like of various liquid (gas) media in the process flow of industrial departments such as chemical industry, chemical fiber, metallurgy, electric power, water conservancy, power plant generating set, nuclear power and the like, and comprises a part for measuring positive and negative differential pressure of a clean room of a cleaning room of an air blower, a pharmaceutical factory, an electronic factory, a heating ventilation air conditioner, a purification workbench, a special gauge for a purification air shower, wind speed, furnace pressure, orifice plate differential pressure, steam drum water level, a liquid amplifier, a hydraulic system, detection of differential pressure of a filter screen of the purification air conditioner, environment-friendly dust removal equipment, detection of differential pressure of an air compressor and the like, and differential pressure measurement of equipment for detecting air-gas ratio control, automatic valve control, blood pressure, respiratory pressure, pipelines, various experiments and the like in the process of boiler ventilation, gas, liquid and combustion.
Most of high static pressure differential pressure gauges on the market at present have simple structures and single functions, general high static pressure differential pressure pressing edges do not have the function of overload protection, and when the high static pressure differential pressure pressing edges are used for measuring liquid (gas) media, if sudden large differential pressure is met, the high static pressure differential pressure gauges are easy to damage, so that the high static pressure differential pressure gauges with the function of overload protection are provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high static pressure differential pressure gauge with overload protection function to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-static-pressure differential pressure gauge with an overload protection function comprises a differential pressure gauge main body, wherein an air inlet end of the differential pressure gauge main body is communicated with a protection device, a left end of the protection device is fixedly connected with a limiting device, the protection device comprises a pressure relief pipe, a first flow guide pipe, a second flow guide pipe, a pressure relief shell, a third flow guide pipe, scale marks, a handle, an adjusting screw rod, a threaded cylinder, a movable plate, a first spring, a pressure relief block, a sealing ring, a flow guide hole and a bearing, an inlet end of the differential pressure gauge main body is communicated with the third flow guide pipe, the outer side of the left end of the third flow guide pipe is communicated with the pressure relief shell, the inner side of the top end of the pressure relief shell is communicated with the second flow guide pipe, the pressure relief pipe is communicated with the top end of the second flow guide pipe and fixedly connected with the differential pressure gauge main body, the other end of the pressure relief pipe is communicated with a first flow guide pipe, and the outlet end of the differential pressure gauge main body is communicated with the first flow guide pipe, the inboard fixedly connected with bearing of right-hand member of pressure release shell, the inboard fixedly connected with adjusting screw of bearing, adjusting screw's outside spiral connection has a screw thread section of thick bamboo, the right-hand member fixedly connected with movable plate of screw thread section of thick bamboo, and movable plate and pressure release shell sliding connection, the first spring of right-hand member fixedly connected with of movable plate, the right-hand member fixedly connected with of first spring lets out the briquetting, let out the inboard of briquetting and seted up the water conservancy diversion hole, let out the outside fixedly connected with sealing ring of briquetting, the front end of pressure release shell is provided with the scale mark.
Preferably, the sealing ring is made of a rubber ring and is communicated with the pressure relief block through a flow guide hole.
Preferably, the pressure relief block is slidably connected with the pressure relief shell through a sealing ring.
Preferably, the left end of the adjusting screw is fixedly connected with a handle, and the left end of the adjusting screw is fixedly connected with the bearing without a threaded part.
Preferably, stop device includes gear, stopper, operation panel, second spring, connecting rod and tooth, adjusting screw's left end outside fixedly connected with gear, the left end fixedly connected with stopper of pressure release shell, the inboard sliding connection of stopper has the connecting rod, the bottom fixedly connected with tooth of connecting rod, and tooth and gear block.
Preferably, the top end of the connecting rod is fixedly connected with an operating panel, a second spring is arranged on the outer side of the connecting rod, and the top end and the bottom end of the second spring are fixedly connected with the operating panel and the limiting block respectively.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through the pressure release pipe that sets up, the pressure release shell, the third honeycomb duct, the scale mark, a handle, adjusting screw, a thread section of thick bamboo, the movable plate, a spring, sealing ring and water conservancy diversion hole, the compression capacity of first spring can be adjusted through adjusting screw's effect to the staff, thereby realize the regulation of first spring to pressure release piece thrust, when making the differential pressure meter main part transship appear, the inboard water conservancy diversion hole of pressure release piece can align with the second honeycomb duct, make the medium follow pressure release pipe and discharge, reduce the volume that the medium got into the differential pressure meter main part.
2. The utility model discloses in, through gear, stopper, operation panel, second spring, connecting rod and the tooth that sets up, take tooth and gear card through the second spring and be in the same place, can realize spacing to adjusting screw, guarantee this device at normal during operation, the phenomenon that the rotation squinted can not appear in adjusting screw, improves the stability of this device during operation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the protection device of the present invention;
fig. 3 is a schematic structural diagram of a portion a of fig. 2 according to the present invention.
In the figure: 1-differential pressure gauge main body, 2-protection device, 201-pressure relief pipe, 202-first guide pipe, 203-second guide pipe, 204-pressure relief shell, 205-third guide pipe, 206-scale mark, 207-handle, 208-adjusting screw, 209-thread cylinder, 210-moving plate, 211-first spring, 212-pressure relief block, 213-sealing ring, 214-flow guide hole, 215-bearing, 3-limiting device, 301-gear, 302-limiting block, 303-operating plate, 304-second spring, 305-connecting rod and 306-tooth.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a high-static-pressure differential pressure gauge with an overload protection function comprises a differential pressure gauge main body 1, wherein the air inlet end of the differential pressure gauge main body 1 is communicated with a protection device 2, the left end of the protection device 2 is fixedly connected with a limiting device 3, the protection device 2 comprises a pressure relief pipe 201, a first guide pipe 202, a second guide pipe 203, a pressure relief shell 204, a third guide pipe 205, a scale mark 206, a handle 207, an adjusting screw 208, a threaded barrel 209, a moving plate 210, a first spring 211, a pressure relief block 212, a sealing ring 213, a flow guide hole 214 and a bearing 215, the inlet end of the differential pressure gauge main body 1 is communicated with the third guide pipe 205, the outer side of the left end of the third guide pipe 205 is communicated with the pressure relief shell 204, the inner side of the top end of the pressure relief shell 204 is communicated with the second guide pipe 203, the top end of the second guide pipe 203 is communicated with the pressure relief pipe 201, and the pressure relief pipe 201 is fixedly connected with the differential pressure gauge main body 1, the other end of the pressure relief pipe 201 is communicated with a first flow guide pipe 202, the first flow guide pipe 202 is communicated with an outlet end of the differential pressure gauge main body 1, and a gas medium can flow out from an outlet port of the differential pressure gauge main body 1 through a second flow guide pipe 203, the pressure relief pipe 201 and the first flow guide pipe 202, so that the liquid (gas) medium can be shunted, the pressure of the liquid (gas) medium on the differential pressure gauge main body 1 is reduced, and the protection effect is achieved, the inner side of the right end of the pressure relief shell 204 is fixedly connected with a bearing 215, the inner side of the bearing 215 is fixedly connected with an adjusting screw 208, the outer side of the adjusting screw 208 is spirally connected with a threaded cylinder 209, the rotation of the adjusting screw 208 is facilitated through the bearing 215, the right end of the threaded cylinder 209 is fixedly connected with a movable plate 210, the movable plate 210 is slidably connected with the pressure relief shell 204, the right end of the movable plate 210 is fixedly connected with a first spring 211, the right-hand member fixedly connected with of first spring 211 lets out briquetting 212, can realize spacing the support of letting out briquetting 212 through first spring 211, the water conservancy diversion hole 214 has been seted up to the inboard of letting out briquetting 212, let out the outside fixedly connected with sealing ring 213 of briquetting 212, the front end of pressure release shell 204 is provided with scale mark 206, can confirm the decrement of first spring 211 in real time through scale mark 206.
The sealing ring 213 is made of a rubber ring, the sealing ring 213 is communicated with the pressure relief block 212 through the flow guide hole 214, so that the sealing performance between the pressure relief block 212 and the pressure relief shell 204 can be ensured, the pressure relief block 212 is slidably connected with the pressure relief shell 204 through the sealing ring 213, so that the pressure relief block 212 can freely slide on the inner side of the pressure relief shell 204, the left end of the adjusting screw 208 is fixedly connected with the handle 207, the left end of the adjusting screw 208 is not provided with a threaded part and is fixedly connected with the bearing 215, the adjusting screw 208 is convenient to rotate through the handle 207, the limiting device 3 comprises a gear 301, a limiting block 302, an operating plate 303, a second spring 304, a connecting rod 305 and teeth 306, the outer side of the left end of the adjusting screw 208 is fixedly connected with the gear 301, the left end of the pressure relief shell 204 is fixedly connected with the limiting block 302, the inner side of the limiting block 302 is slidably connected with the connecting rod, and the bottom end of the connecting rod 305 is fixedly connected with the teeth 306, and tooth 306 and gear 301 block, can realize spacing to gear 301 through tooth 306, the top fixedly connected with operation panel 303 of connecting rod 305, the outside of connecting rod 305 is provided with second spring 304, and the top and the bottom of second spring 304 respectively with operation panel 303 and stopper 302 fixed connection, can realize spacing to connecting rod 305 and tooth 306 through second spring 304.
The working process is as follows: the worker firstly adjusts the compression amount of the first spring 211 according to the actual use condition, the worker firstly pulls the connecting rod 305 upwards through the operating plate 303 to separate the connecting rod 305 with the teeth 306 from the gear 301, then the worker spirally rotates the inner side of the thread cylinder 209 through the handle 207 with the adjusting screw 208, the thread cylinder 209 is moved in the horizontal direction under the action of the adjusting screw 208, meanwhile, the thread cylinder 209 also adjusts the compression amount of the first spring 211 through the moving plate 210 to change the elastic force of the first spring 211 on the pressure relief block 212, meanwhile, the compression amount of the first spring 211 can be determined through the scale line 206, when the compression amount of the first spring 211 is adjusted to a proper position, the worker loosens the operating plate 303, the connecting rod 305 with the teeth 306 is clamped with the gear 301 under the action of the second spring 304, and therefore, the limit of the gear 301 and the adjusting screw 208 is realized, the adjusting screw 208 is ensured not to rotate, when the pressure of the liquid (gas) medium flowing through the inside of the differential pressure gauge main body 1 from the inlet end of the differential pressure gauge main body 1 is too high, the pressure generated by the liquid (gas) medium can extrude the pressure relief block 212 through the third guide pipe 205, so that the pressure relief block 212 drives the sealing ring 213 to gradually slide towards the left side, meanwhile, the pressure relief block 212 can compress the first spring 211, and when the guide hole 214 on the inner side of the pressure relief block 212 is communicated with the second guide pipe 203, the liquid (gas) medium can flow out from the outlet port of the differential pressure gauge main body 1 through the second guide pipe 203, the pressure relief pipe 201 and the first guide pipe 202, thereby realizing the diversion of the liquid (gas) medium, reducing the pressure of the liquid (gas) medium on the differential pressure gauge main body 1, and playing a role in protection.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A high static pressure differential pressure gauge with an overload protection function comprises a differential pressure gauge main body (1), and is characterized in that: the air inlet end of the differential pressure gauge main body (1) is communicated with a protection device (2), the left end of the protection device (2) is fixedly connected with a limiting device (3), the protection device (2) comprises a pressure relief pipe (201), a first guide pipe (202), a second guide pipe (203), a pressure relief shell (204), a third guide pipe (205), scale marks (206), a handle (207), an adjusting screw (208), a threaded cylinder (209), a moving plate (210), a first spring (211), a pressure relief block (212), a sealing ring (213), a flow guide hole (214) and a bearing (215), the inlet end of the differential pressure gauge main body (1) is communicated with the third guide pipe (205), the outer side of the left end of the third guide pipe (205) is communicated with the pressure relief shell (204), the inner side of the top end of the pressure relief shell (204) is communicated with the second guide pipe (203), the top end of the second guide pipe (203) is communicated with the pressure relief pipe (201), the pressure relief tube (201) is fixedly connected with the differential pressure gauge main body (1), the other end of the pressure relief tube (201) is communicated with a first guide tube (202), the first guide tube (202) is communicated with the outlet end of the differential pressure gauge main body (1), the inner side of the right end of the pressure relief shell (204) is fixedly connected with a bearing (215), the inner side of the bearing (215) is fixedly connected with an adjusting screw (208), the outer side of the adjusting screw (208) is spirally connected with a threaded cylinder (209), the right end of the threaded cylinder (209) is fixedly connected with a movable plate (210), the movable plate (210) is slidably connected with the pressure relief shell (204), the right end of the movable plate (210) is fixedly connected with a first spring (211), the right end of the first spring (211) is fixedly connected with a pressure relief block (212), the inner side of the pressure relief block (212) is provided with a guide hole (214), and the outer side of the pressure relief block (212, the front end of the pressure relief shell (204) is provided with scale marks (206).
2. A high static pressure differential pressure gauge with overload protection function according to claim 1, characterized in that: the sealing ring (213) is made of a rubber ring, and the sealing ring (213) is communicated with the pressure relief block (212) through the flow guide hole (214).
3. A high static pressure differential pressure gauge with overload protection function according to claim 1, characterized in that: the pressure relief block (212) is connected with the pressure relief shell (204) in a sliding mode through a sealing ring (213).
4. A high static pressure differential pressure gauge with overload protection function according to claim 1, characterized in that: the left end of the adjusting screw rod (208) is fixedly connected with a handle (207), and the left end of the adjusting screw rod (208) is fixedly connected with a bearing (215) without a threaded part.
5. A high static pressure differential pressure gauge with overload protection function according to claim 2, characterized in that: stop device (3) include gear (301), stopper (302), operation panel (303), second spring (304), connecting rod (305) and tooth (306), the left end outside fixedly connected with gear (301) of adjusting screw (208), the left end fixedly connected with stopper (302) of pressure release shell (204), the inboard sliding connection of stopper (302) has connecting rod (305), the bottom fixedly connected with tooth (306) of connecting rod (305), and tooth (306) and gear (301) block.
6. A high static pressure differential pressure gauge with overload protection function according to claim 5, characterized in that: the top end fixedly connected with operation panel (303) of connecting rod (305), the outside of connecting rod (305) is provided with second spring (304), and the top and the bottom of second spring (304) respectively with operation panel (303) and stopper (302) fixed connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022565636.4U CN213985500U (en) | 2020-11-09 | 2020-11-09 | High static pressure differential pressure gauge with overload protection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022565636.4U CN213985500U (en) | 2020-11-09 | 2020-11-09 | High static pressure differential pressure gauge with overload protection function |
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| CN213985500U true CN213985500U (en) | 2021-08-17 |
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| CN202022565636.4U Active CN213985500U (en) | 2020-11-09 | 2020-11-09 | High static pressure differential pressure gauge with overload protection function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593866A (en) * | 2022-03-08 | 2022-06-07 | 贾秀梅 | Oil field is with preventing pressure overload's dynamic adjustment formula oil pressure seat |
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2020
- 2020-11-09 CN CN202022565636.4U patent/CN213985500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593866A (en) * | 2022-03-08 | 2022-06-07 | 贾秀梅 | Oil field is with preventing pressure overload's dynamic adjustment formula oil pressure seat |
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