CN112460446A - Urban water supply underground pipeline pressure measuring device - Google Patents
Urban water supply underground pipeline pressure measuring device Download PDFInfo
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- CN112460446A CN112460446A CN202011155866.1A CN202011155866A CN112460446A CN 112460446 A CN112460446 A CN 112460446A CN 202011155866 A CN202011155866 A CN 202011155866A CN 112460446 A CN112460446 A CN 112460446A
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- expanding
- rod
- main transmission
- shaft sleeve
- transmission rod
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
Abstract
The invention discloses a pressure measuring device for an underground pipeline for urban water supply, which comprises a main transmission rod, wherein the main transmission rod is connected with a first expanding component and a second expanding component, the first expanding component and the second expanding component are arranged oppositely, and an air inlet nozzle and a pressure sensor are arranged between the first expanding component and the second expanding component; the air inlet nozzle is fixedly connected to the main transmission rod, an air passing channel is arranged inside the main transmission rod, one end of the air passing channel is communicated with the air inlet nozzle, the other end of the air passing channel is communicated with an installation end fixedly connected to the outer side of the main transmission rod, and the installation end is located on the outer side of the first expanding component and the outer side of the second expanding component. The pipeline pressure measuring device can improve the convenience of the pipeline pressure measuring operation, does not need to consider the specification of a water supply pipeline, and effectively improves the application universality of the pipeline pressure measurement.
Description
Technical Field
The invention relates to the field of municipal engineering, in particular to a pressure measuring device for an underground pipeline for urban water supply.
Background
The water supply system is used for ensuring normal supply of domestic water, industrial water and other water in cities, and is the life of modern cities. For a long time, the urban underground water supply pipe network in China has high leakage rate, and a large amount of water leaks through the underground pipe network, so that huge waste of water resources is caused; the daily life of common people is influenced by unstable and sudden change of water supply pressure, poor water quality, secondary pollution of a pipe network and the like caused by leakage of the pipe network; the leakage of the underground water supply pipeline can take away a large amount of silt, so that a large amount of subsidence is formed, and a large amount of engineering hidden troubles are formed. Therefore, the leakage of the underground water supply pipeline causes a great amount of economic loss, and great potential safety hazards are brought to life and safety production of cities.
The underground pipeline for urban water supply generally has the phenomena of breakage, breakage and the like in the use process, so the pressure resistance of the pipeline is an important standard for measuring the production quality of the pipeline. Whether qualified in order to guarantee the use specification of water supply pipe, need measure the pressure resistance of water supply pipe, and current pipeline pressure measurement device all need remove water supply pipe, because water supply pipe is bulky, it is very inconvenient to remove, the operation degree of difficulty of pipeline pressure measurement work has been increased, on the other hand, water supply pipe is different because the water supply capacity in each region, its inner diameter specification is also inequality, and current pressure measurement device can only detect one kind or two kinds of commonly used water supply pipe specifications, its use universality is relatively poor, the user demand of pipeline pressure measurement work has been difficult to satisfy.
Disclosure of Invention
The invention aims to solve the problems and provides a pressure measuring device for underground pipelines for urban water supply, which has a simple structure and is convenient to operate.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a pressure measuring device for an underground pipeline for urban water supply comprises a main transmission rod, wherein a first expanding component and a second expanding component are connected to the main transmission rod, the first expanding component and the second expanding component are arranged oppositely, and an air inlet nozzle and a pressure sensor are arranged between the first expanding component and the second expanding component; the air inlet nozzle is fixedly connected to the main transmission rod, an air passing channel is arranged inside the main transmission rod, one end of the air passing channel is communicated with the air inlet nozzle, the other end of the air passing channel is communicated with an installation end fixedly connected to the outer side of the main transmission rod, and the installation end is located on the outer side of the first expanding component and the outer side of the second expanding component.
Furthermore, the first expanding component comprises a first shaft sleeve, a first movable nut and a first windproof cloth, the first shaft sleeve is connected with a bearing on the outer side face of the main transmission rod, a plurality of first connecting lugs are arranged on the outer side of the first shaft sleeve along the circumferential direction of the first shaft sleeve and are connected with first expanding support rods through first connecting lug pin shafts, and the first expanding support rods are connected with the first windproof cloth; the first movable nut is sleeved on the outer side of the main transmission rod, a first internal thread is arranged on the inner side face of the first movable nut and is in threaded connection with the main transmission rod through the first internal thread, a plurality of first mounting lugs are arranged on the outer side face of the first movable nut along the circumferential direction of the first movable nut, the first supporting rod is connected with the first supporting rod through the first mounting lug pin shaft, the first supporting rod is arranged corresponding to the first expanding rod, and one end, far away from the first mounting lug, of the first supporting rod is connected with a first fixed lug pin shaft arranged on the first expanding rod.
Furthermore, the second expanding component comprises a second shaft sleeve, a second movable nut and a second windproof cloth, the second shaft sleeve is connected with a bearing on the outer side face of the main transmission rod, a plurality of second connecting lugs are arranged on the outer side of the second shaft sleeve along the circumferential direction of the second shaft sleeve and are connected with the second expanding support rod through second connecting lug pins, and the second expanding support rods are connected with the second windproof cloth; the second movable nut is sleeved on the outer side of the main transmission rod, a second internal thread is arranged on the inner side face of the second movable nut and is in threaded connection with the main transmission rod through the second internal thread, a plurality of second mounting lugs are arranged on the outer side face of the second movable nut along the circumferential direction of the second movable nut and are connected with a second supporting rod through second mounting lug pin shafts, the second supporting rod and the second expanding rod are arranged correspondingly, and one end, far away from the second mounting lug, of the second supporting rod is connected with a second fixed lug pin shaft arranged on the second expanding rod.
Furthermore, a first shaft sleeve in the first expanding assembly and a second shaft sleeve in the second expanding assembly are arranged oppositely, the first movable nut is positioned on one side of the first shaft sleeve, which is far away from the second shaft sleeve, and the second movable nut is positioned on one side of the second shaft sleeve, which is far away from the first shaft sleeve; the first internal thread on the inner side of the first movable nut and the second internal thread on the inner side of the second movable nut are opposite in turning direction.
Further, the length of the first expanding support rod is greater than that of the first support rod, and the length of the second expanding support rod is greater than that of the second support rod; the first fixing lug is arranged in the middle of the first expanding support rod, and the second fixing lug is arranged in the middle of the second expanding support rod.
Furthermore, one end of the main transmission rod is in transmission connection with the motor, the other end of the main transmission rod is fixedly connected with the limiting block, and the motor is connected with the motor fixing seat.
Further, the equal fixedly connected with electric putter in motor fixing base, the stopper outside, electric putter has a plurality of and a plurality of electric putter to set up around motor fixing base, stopper.
Furthermore, the first windproof cloth and the second windproof cloth are sleeved outside the main transmission rod in an annular shape, the first windproof cloth is bonded on one side, close to the second expanding component, of the first expanding rod, and the second windproof cloth is bonded on one side, close to the first expanding component, of the second expanding rod; the outer edges of the first windproof cloth and the second windproof cloth are both connected with rubber sealing rings.
Furthermore, the first shaft sleeve and the second shaft sleeve are fixedly connected through a connecting rod, and the pressure sensor is fixedly connected to the connecting rod.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention adopts the design that the main transmission rod is provided with the first expanding component and the second expanding component, when the pressure measurement operation of the water supply pipeline is carried out, the main transmission rod is only needed to be placed in the water supply pipeline, then the first expanding component and the second expanding component are subjected to the expanding operation by controlling the rotation of the main transmission rod, the edges of the first expanding component and the second expanding component are tightly contacted with the inner side wall of the water supply pipeline after the first expanding component and the second expanding component are expanded, so that the space between the first expanding component and the second expanding component forms a closed space, then the air supply equipment is connected with the installation end head, the airflow blown out by the air supply equipment can enter the closed space through the air passage, the air pressure value in the closed space is continuously increased along with the continuous entering of the airflow, the specific air pressure value in the closed space can be obtained through the pressure sensor, when the air pressure value exceeds the preset pipeline detection threshold value, the water supply pipeline meets the pressure-resistant requirement of water supply; the whole pressure measuring operation only needs to be carried out on the main transmission rod, so that the convenience of the pressure measuring operation of the pipeline is improved, and meanwhile, the water supply pipeline does not need to be moved, so that the control difficulty of the pressure measuring operation is reduced; on the other hand, the pressure measuring device can be applied to water supply pipelines of various specifications, the application range is wider, and the application effect of the pipeline pressure measuring device is effectively improved.
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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a first state structure of the present invention;
FIG. 2 is a structural diagram illustrating a second state of the present invention;
FIG. 3 is an enlarged view of the first bracing assembly;
FIG. 4 is an enlarged view of the second support member;
FIG. 5 is a left side view of the connection structure of the first bushing with the first spreader bar and the first windbreak cloth;
fig. 6 is a connection structure view of the motor fixing seat and the electric push rod.
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 from the embodiments of the present invention by a person skilled in the art without any creative effort, should be included in the protection scope of the present invention.
As shown in fig. 1 to 6, the pressure measuring device for an underground pipeline for urban water supply in the embodiment includes a main transmission rod 1, the main transmission rod 1 is connected with a first expanding component 2 and a second expanding component 3, the first expanding component 2 and the second expanding component 3 are arranged oppositely, and an air inlet nozzle 5 and a pressure sensor 13 are arranged between the first expanding component 2 and the second expanding component 3; the air inlet nozzle 5 is fixedly connected to the main transmission rod 1, an air passing channel 101 is arranged inside the main transmission rod 1, one end of the air passing channel 101 is communicated with the air inlet nozzle 5, the other end of the air passing channel 101 is communicated with an installation end 4 fixedly connected to the outer side of the main transmission rod 1, and the installation end 4 is communicated with air supply equipment; the mounting end heads 4 are positioned outside the first expanding component 2 and the second expanding component 3.
The invention adopts the design that the main transmission rod is provided with the first expanding component and the second expanding component, when the pressure measurement operation of the water supply pipeline is carried out, the main transmission rod is only needed to be placed in the water supply pipeline, then the first expanding component and the second expanding component are subjected to the expanding operation by controlling the rotation of the main transmission rod, the edges of the first expanding component and the second expanding component are tightly contacted with the inner side wall of the water supply pipeline after the first expanding component and the second expanding component are expanded, so that the space between the first expanding component and the second expanding component forms a closed space, then the air supply equipment is connected with the installation end head, the airflow blown out by the air supply equipment can enter the closed space through the air passage, the air pressure value in the closed space is continuously increased along with the continuous entering of the airflow, the specific air pressure value in the closed space can be obtained through the pressure sensor, when the air pressure value exceeds the preset pipeline detection threshold value, the water supply pipeline meets the pressure-resistant requirement of water supply; the whole pressure measuring operation only needs to be carried out on the main transmission rod, so that the convenience of the pressure measuring operation of the pipeline is improved, meanwhile, the water supply pipeline does not need to be moved, and the control difficulty of the pressure measuring operation is reduced;
on the other hand, the pressure measuring device can be applied to water supply pipelines of various specifications, the application range is wider, and the application effect of the pipeline pressure measuring device is effectively improved.
The first expanding component 2 comprises a first shaft sleeve 201, a first movable nut 202 and a first windproof cloth 205, the first shaft sleeve 201 is in bearing connection with the outer side face of the main transmission rod 1, a plurality of first connecting lugs 203 are arranged on the outer side of the first shaft sleeve 201 along the circumferential direction of the first shaft sleeve 201 and are in pin connection with first expanding support rods 204 through the first connecting lugs 203, and the first expanding support rods 204 are all connected with the first windproof cloth 205; the first movable nut 202 is sleeved outside the main transmission rod 1, a first internal thread is arranged on the inner side of the first movable nut 202 and is in threaded connection with the main transmission rod 1 through the first internal thread, a plurality of first mounting lugs 207 are arranged on the outer side of the first movable nut 202 along the circumferential direction of the first movable nut 202 and are connected with a first supporting rod 208 through first mounting lug 207 pin shafts, the first supporting rod 208 is arranged corresponding to the first expanding rod 204, and one end, far away from the first mounting lug 207, of the first supporting rod 208 is connected with a first fixing lug 206 arranged on the first expanding rod 204 through pin shafts; in the expanded state, the edge of the first windbreak 205 contacts the inner side wall of the water supply pipe 6.
The second expanding component 3 comprises a second shaft sleeve 301, a second movable nut 302 and a second windproof cloth 305, the second shaft sleeve 301 is in bearing connection with the outer side face of the main transmission rod 1, a plurality of second connecting lugs 303 are arranged on the outer side of the second shaft sleeve 301 along the circumferential direction of the second shaft sleeve 301 and are connected with a second expanding support rod 304 through second connecting lugs 303 by pin shafts, and the plurality of second expanding support rods 304 are connected with the second windproof cloth 305; the second movable nut 302 is sleeved outside the main transmission rod 1, a second internal thread is arranged on the inner side of the second movable nut 302 and is in threaded connection with the main transmission rod 1 through the second internal thread, a plurality of second mounting lugs 307 are arranged on the outer side of the second movable nut 302 along the circumferential direction of the second movable nut 302 and are in pin connection with a second support rod 308 through the second mounting lugs 307, the second support rod 308 and a second expanding rod 304 are correspondingly arranged, and one end, far away from the second mounting lug 307, of the second support rod 308 is in pin connection with a second fixed lug 306 arranged on the second expanding rod 308; in the expanded state, the edge of the second windguard 305 contacts the inner side wall of the water supply pipe 6.
The first shaft sleeve 201 in the first expanding assembly 2 is arranged opposite to the second shaft sleeve 301 in the second expanding assembly 3, the first movable nut 202 is positioned on one side of the first shaft sleeve 201 away from the second shaft sleeve 301, and the second movable nut 302 is positioned on one side of the second shaft sleeve 301 away from the first shaft sleeve 201; the first internal threads on the inside of the first movable nut 202 are opposite to the second internal threads on the inside of the second movable nut 302.
The length of the first expansion brace 204 is greater than that of the first support brace 208, and the length of the second expansion brace 304 is greater than that of the second support brace 308; the first fixing ear 206 is disposed in the middle of the first expanding rod 204, and the second fixing ear 306 is disposed in the middle of the second expanding rod 304.
When the main transmission rod rotates, the first movable nut and the second movable nut can relatively approach or relatively leave, when the first movable nut and the second movable nut relatively approach, the first support rod and the second support rod which are connected with the first movable nut and the second movable nut support the first expanding rod and the second expanding rod, so that the first windproof cloth which is bonded on the outer side of the first expanding rod and the second windproof cloth which is bonded on the outer side of the second expanding rod can be supported like an umbrella cover, when the edges of the first windproof cloth and the second windproof cloth are in contact with the inner side wall of the water supply pipeline, a closed space is formed between the first windproof cloth and the second windproof cloth, and the closed space can be used for carrying out pipeline pressure measurement (as shown in fig. 2); when the first movable nut and the second movable nut are relatively far away, the first expanding rod and the second expanding rod realize reverse contraction operation (as shown in fig. 1), so that the first windproof cloth and the second windproof cloth are stored; the windproof cloth should be made of a pressure-resistant material.
The first windproof cloth 205 and the second windproof cloth 305 are sleeved outside the main transmission rod 1 in a ring shape, the first windproof cloth 205 is bonded on one side of the first expanding rod 204 close to the second expanding component 3, and the second windproof cloth 305 is bonded on one side of the second expanding rod 304 close to the first expanding component 2; rubber packing 11 is connected to the outer edges of the first and second windbreak cloths 205, 305.
When the closed space formed by the first windproof cloth and the second windproof cloth is pressurized, the first windproof cloth and the second windproof cloth can cling to the first expanding rod and the second expanding rod, so that the situations that the first windproof cloth and the second windproof cloth fall off and the like are avoided, and the using effect of the invention is improved.
The first shaft sleeve 201 and the second shaft sleeve 301 are fixedly connected through a connecting rod 12, and the pressure sensor 13 is fixedly connected to the connecting rod 12.
The design of connecting rod has avoided first expand to prop the subassembly, the second expands and prop the condition that the subassembly appears asynchronous rotation to make first prevent wind cloth, second prevent wind the cloth edge and can contact with the water supply pipe inside wall simultaneously, thereby constituted airtight space.
One end of the main transmission rod 1 is in transmission connection with the motor 7, the other end of the main transmission rod 1 is fixedly connected with the limiting block 10, and the motor 7 is connected with the motor fixing seat 8.
Equal fixedly connected with electric putter 9 in motor fixing base 8, the stopper 10 outside, electric putter 9 has a plurality of and a plurality of electric putter 9 to set up around motor fixing base 8, stopper 10.
The motor is convenient to rotate the main transmission rod, and the main transmission shaft can be positioned at the axis position of the water supply pipeline by arranging the plurality of electric push rods, so that the whole device is supported, and the using effect of the water supply device is further improved.
Claims (9)
1. The utility model provides a pressure measuring device for urban water supply underground pipeline which characterized in that: the pressure measuring device for the underground pipeline comprises a main transmission rod, wherein a first expanding component and a second expanding component are connected to the main transmission rod, the first expanding component and the second expanding component are arranged oppositely, and an air inlet nozzle and a pressure sensor are arranged between the first expanding component and the second expanding component; the air inlet nozzle is fixedly connected to the main transmission rod, an air passing channel is arranged inside the main transmission rod, one end of the air passing channel is communicated with the air inlet nozzle, the other end of the air passing channel is communicated with an installation end fixedly connected to the outer side of the main transmission rod, and the installation end is located on the outer side of the first expanding component and the outer side of the second expanding component.
2. The apparatus for measuring pressure of underground piping for urban water supply according to claim 1, wherein: the first expanding component comprises a first shaft sleeve, a first movable nut and a first windproof cloth, the first shaft sleeve is connected with a bearing on the outer side face of the main transmission rod, a plurality of first connecting lugs are arranged on the outer side of the first shaft sleeve along the circumferential direction of the first shaft sleeve and are connected with first expanding support rods through first connecting lug pin shafts, and the first expanding support rods are all connected with the first windproof cloth; the first movable nut is sleeved on the outer side of the main transmission rod, a first internal thread is arranged on the inner side face of the first movable nut and is in threaded connection with the main transmission rod through the first internal thread, a plurality of first mounting lugs are arranged on the outer side face of the first movable nut along the circumferential direction of the first movable nut, the first supporting rod is connected with the first supporting rod through the first mounting lug pin shaft, the first supporting rod is arranged corresponding to the first expanding rod, and one end, far away from the first mounting lug, of the first supporting rod is connected with a first fixed lug pin shaft arranged on the first expanding rod.
3. The apparatus for measuring pressure of underground piping for urban water supply according to claim 2, wherein: the second expanding component comprises a second shaft sleeve, a second movable nut and a second windproof cloth, the second shaft sleeve is connected with a bearing on the outer side surface of the main transmission rod, a plurality of second connecting lugs are arranged on the outer side of the second shaft sleeve along the circumferential direction of the second shaft sleeve and are connected with the second expanding support rod through second connecting lug pins, and the second expanding support rods are connected with the second windproof cloth; the second movable nut is sleeved on the outer side of the main transmission rod, a second internal thread is arranged on the inner side face of the second movable nut and is in threaded connection with the main transmission rod through the second internal thread, a plurality of second mounting lugs are arranged on the outer side face of the second movable nut along the circumferential direction of the second movable nut and are connected with a second supporting rod through second mounting lug pin shafts, the second supporting rod and the second expanding rod are arranged correspondingly, and one end, far away from the second mounting lug, of the second supporting rod is connected with a second fixed lug pin shaft arranged on the second expanding rod.
4. The apparatus for measuring pressure of underground piping for urban water supply according to claim 3, wherein: a first shaft sleeve in the first expanding assembly and a second shaft sleeve in the second expanding assembly are arranged oppositely, a first movable nut is positioned on one side of the first shaft sleeve, which is far away from the second shaft sleeve, and a second movable nut is positioned on one side of the second shaft sleeve, which is far away from the first shaft sleeve; the first internal thread on the inner side of the first movable nut and the second internal thread on the inner side of the second movable nut are opposite in turning direction.
5. The apparatus for measuring pressure of underground piping for urban water supply according to claim 4, wherein: the length of the first expanding support rod is greater than that of the first support rod, and the length of the second expanding support rod is greater than that of the second support rod; the first fixing lug is arranged in the middle of the first expanding support rod, and the second fixing lug is arranged in the middle of the second expanding support rod.
6. The apparatus for measuring pressure of underground piping for urban water supply according to claim 5, wherein: one end of the main transmission rod is in transmission connection with the motor, the other end of the main transmission rod is fixedly connected with the limiting block, and the motor is connected with the motor fixing seat.
7. The apparatus for measuring pressure of underground piping for urban water supply according to claim 6, wherein: the motor fixing seat and the limiting block are fixedly connected with electric push rods, and the electric push rods are provided with a plurality of electric push rods and arranged around the motor fixing seat and the limiting block.
8. The apparatus for measuring pressure of underground piping for urban water supply according to claim 7, wherein: the first windproof cloth and the second windproof cloth are sleeved outside the main transmission rod in an annular shape, the first windproof cloth is bonded on one side, close to the second expanding component, of the first expanding support rod, and the second windproof cloth is bonded on one side, close to the first expanding component, of the second expanding support rod; the outer edges of the first windproof cloth and the second windproof cloth are both connected with rubber sealing rings.
9. The apparatus for measuring pressure of underground piping for urban water supply of claim 8, wherein: the first shaft sleeve and the second shaft sleeve are fixedly connected through a connecting rod, and the pressure sensor is fixedly connected to the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011155866.1A CN112460446A (en) | 2020-10-26 | 2020-10-26 | Urban water supply underground pipeline pressure measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011155866.1A CN112460446A (en) | 2020-10-26 | 2020-10-26 | Urban water supply underground pipeline pressure measuring device |
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| CN112460446A true CN112460446A (en) | 2021-03-09 |
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| CN202011155866.1A Pending CN112460446A (en) | 2020-10-26 | 2020-10-26 | Urban water supply underground pipeline pressure measuring device |
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| CN208060096U (en) * | 2018-03-28 | 2018-11-06 | 广东省工业设备安装有限公司 | A kind of assembled air conditioner water device for testing steel pipe pressure |
| CN208074397U (en) * | 2018-04-03 | 2018-11-09 | 华北理工大学 | A kind of caliber regulating mechanism |
| CN108561668A (en) * | 2018-07-09 | 2018-09-21 | 合肥奇腾农业科技有限公司 | A kind of new material air pipeline with interior expansion structure |
| CN208859330U (en) * | 2018-10-19 | 2019-05-14 | 丁世猛 | A kind of hydraulic engineering pipeline leakage testing device |
| CN210344703U (en) * | 2019-07-10 | 2020-04-17 | 中国电建市政建设集团有限公司 | Quick plugging expansion capsule for drainage pipeline |
| CN110425376A (en) * | 2019-08-07 | 2019-11-08 | 武汉理工大学 | A kind of line leakage and emergency leakage blocking device |
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Application publication date: 20210309 |
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