CN114577704A - Waterproof detection device and detection method for building material production - Google Patents
Waterproof detection device and detection method for building material production Download PDFInfo
- Publication number
- CN114577704A CN114577704A CN202210495617.XA CN202210495617A CN114577704A CN 114577704 A CN114577704 A CN 114577704A CN 202210495617 A CN202210495617 A CN 202210495617A CN 114577704 A CN114577704 A CN 114577704A
- Authority
- CN
- China
- Prior art keywords
- installation
- mounting
- pressure
- cylinder
- detection
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Abstract
The invention discloses a waterproof detection device and a detection method for building material production, and relates to the technical field of material detection, wherein the device comprises a support installation cylinder, support installation frames are symmetrically arranged on one side of the support installation cylinder, fixed installation holes are formed in the support installation frames, a reset piston is arranged in the support installation cylinder, and the device also comprises: the pressure-equalizing installation cylinder is arranged on the other side of the support installation cylinder, a plurality of through holes are formed between the pressure-equalizing installation cylinder and the support installation cylinder, and the pressure-amplifying and pressurizing mechanism is arranged on the support installation cylinder and is used for being matched with the reset piston to perform pressure adjustment; the waterproof detection modules are arranged on the outer side of the pressure-equalizing installation cylinder at equal angles; waterproof detection module is provided with material fixture including detecting the installation section of thick bamboo, the inside of detecting the installation section of thick bamboo for waterproof material's quick fixed, one side of detecting the installation section of thick bamboo is provided with installation detection mechanism, is used for fixed material fixture and carries out waterproof detection.
Description
Technical Field
The invention relates to the technical field of material detection, in particular to a waterproof detection device and a waterproof detection method for building material production.
Background
Building materials are various materials used in construction works, and the building materials are various in types, and are roughly classified into: inorganic materials, including metallic materials and non-metallic materials; organic materials, including synthetic polymer materials and bituminous materials; composite materials, including asphalt concrete, polymer concrete, etc., are generally made by compounding inorganic non-metallic materials with organic materials.
The building waterproof material is a material foundation of waterproof engineering, is a main barrier for ensuring that buildings and constructions prevent rainwater invasion, groundwater and other moisture permeation, and the quality of the waterproof material has great influence on the waterproof engineering, so the waterproof detection of the building waterproof material is very important.
However, the pressurizing structure of the existing equipment for waterproof detection of building materials is often too complex and large, so that the equipment is large in size and poor in moving performance; the detection quality and efficiency are not ideal because a small number of samples can be obtained at a time when the structural design defect is detected, and the detection of sequential voltage transformation cannot be realized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a waterproof detection device and a detection method for building material production.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a waterproof detection device is used in building material production, includes and supports the installation jar, and a lateral symmetry that supports the installation jar is provided with the support mounting bracket, all is provided with the fixed mounting hole on the support mounting bracket, and the inside that supports the installation jar is provided with the piston that resets, still includes: a pressure-equalizing installation cylinder is arranged on the other side of the support installation cylinder, and a plurality of through holes are formed between the pressure-equalizing installation cylinder and the support installation cylinder; the amplifying and pressurizing mechanism is arranged on the support mounting cylinder and is used for matching with the reset piston to adjust the pressure; the waterproof detection modules are arranged on the outer side of the pressure-equalizing installation cylinder at equal angles;
preferably, the waterproof detection module comprises a detection mounting cylinder, a material clamping mechanism is arranged inside the detection mounting cylinder and used for quickly fixing the waterproof material, an installation detection mechanism is arranged on one side of the detection mounting cylinder and used for fixing the material clamping mechanism and performing waterproof detection, a water tank is arranged on the pressure-equalizing mounting cylinder, a water inlet pipe is arranged on one side of the water tank, a cover is arranged on the water inlet pipe, the other side of the water tank is communicated with the pressure-equalizing mounting cylinder through a liquid inlet hole, and a one-way valve is arranged in the liquid inlet hole;
preferably, the amplifying and pressurizing mechanism comprises a rotating mounting hole arranged on one side of the supporting and mounting cylinder, the inner side of the supporting and mounting cylinder is matched with the rotating mounting hole to be provided with a mounting frame, the mounting frame is provided with a driving turntable through a rotating shaft, the outer side of the driving turntable is provided with a cambered surface bulge, a plurality of supporting guide wheels are arranged on the cambered surface bulge at equal angles through the rotating shaft, one side of the reset piston, which is opposite to the through hole, is connected with the inner wall of the supporting and mounting cylinder through a plurality of reset springs, one side of the detection mounting cylinder is provided with a guide hole, the matched guide hole is provided with an internal thread mounting cylinder, the outer side of the pressure-equalizing mounting cylinder is matched with the guide hole to be provided with a communicating pipe, the outer side of the communicating pipe is matched with the internal thread mounting cylinder to be provided with an external mounting thread, and the communicating pipe is internally provided with a solenoid valve;
preferably, the material clamping mechanism comprises symmetrically arranged frame-shaped clamping plates, an extrusion fixing ring and an extrusion fixing groove are respectively arranged on one sides, which are opposite to the frame-shaped clamping plates, a limiting mounting ring is arranged inside the detection mounting cylinder, and an extrusion sealing ring is arranged on one side of the limiting mounting ring;
preferably, installation detection mechanism includes the fixed mounting cover, and the fixed mounting cover sets up at the opposite side that detects the installation section of thick bamboo, and the fixed mounting cover is just being provided with location guide post and location guide way with detecting the installation section of thick bamboo, and cooperation location guide post and location guide way all are provided with fixing stud, and the one end of fixed mounting cover is provided with a collection liquid section of thick bamboo, is provided with the scale on the collection liquid section of thick bamboo, the spacing collar of fixed mounting cover cooperation is provided with a plurality of spacing installation posts, all is provided with the limiting plate through spacing spring on the spacing installation post.
Compared with the prior art, the invention has the following beneficial effects:
high pressure is realized through short-distance cam transmission, the size of the detection equipment is obviously reduced, and the movement performance is good; through the combination of combination installation formula for a plurality of detection items can be carried out to the device once, also can carry out pressure adjustment's sequence and detect, show the detection efficiency and the quality that promote the device, and easy operation, repeatability is strong.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of a portion a of FIG. 1;
FIG. 3 is a perspective view of the frame-shaped clamp plate according to the present invention;
1. a pressure-equalizing mounting cylinder; 2. a through hole; 3. detecting the installation cylinder; 4. a communicating pipe; 5. resetting the piston; 6. supporting guide wheels; 7. the cambered surface is convex; 8. rotating the mounting hole; 9. driving the turntable; 10. supporting the mounting cylinder; 11. a return spring; 12. supporting the mounting frame; 13. a water tank; 14. a water inlet pipe; 15. a liquid inlet hole; 16. a one-way valve; 17. an internal thread mounting cylinder; 18. a flow guide hole; 19. a limiting mounting ring; 20. extruding the sealing ring; 21. a frame-shaped clamp plate; 22. fixing the mounting cover; 23. limiting the mounting column; 24. a limiting spring; 25. a liquid collection cylinder; 26. a positioning guide groove; 27. fixing the stud; 28. positioning a guide post; 29. a limiting plate; 30. installing screw thread; 31. an electromagnetic valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Example 1
Referring to fig. 1 and 2, in an embodiment of the present invention, a waterproof detection apparatus for building material production includes a support mounting cylinder 10, support mounting frames 12 are symmetrically disposed on one side of the support mounting cylinder 10, each support mounting frame 12 is provided with a fixed mounting hole, and a reset piston 5 is disposed inside the support mounting cylinder 10, and further includes: a pressure-equalizing installation cylinder 1 is arranged on the other side of the supporting installation cylinder 10, a plurality of through holes 2 are formed between the pressure-equalizing installation cylinder 1 and the supporting installation cylinder 10, a water tank 13 is arranged on the pressure-equalizing installation cylinder 1, a water inlet pipe 14 is arranged on one side of the water tank 13, a cover is arranged on the water inlet pipe 14, the other side of the water tank 13 is communicated with the pressure-equalizing installation cylinder 1 through a liquid inlet hole 15, and a one-way valve 16 is arranged in the liquid inlet hole 15; the amplifying and pressurizing mechanism is arranged on the support mounting cylinder 10 and is used for adjusting the pressure in cooperation with the reset piston 5; the waterproof detection modules are arranged on the outer side of the pressure-equalizing installation cylinder 1 at equal angles;
waterproof detection module is provided with material fixture including detecting installation section of thick bamboo 3, the inside that detects installation section of thick bamboo 3 for waterproof material's quick fixed, one side that detects installation section of thick bamboo 3 is provided with installation detection mechanism, is used for fixed material fixture and carries out waterproof detection.
Example 2
Referring to fig. 1 and 3, in the embodiment of the present invention, the magnifying and pressurizing mechanism includes a rotary mounting hole 8 disposed at one side of a support mounting cylinder 10, a mounting frame is disposed at the inner side of the support mounting cylinder 10 in cooperation with the rotary mounting hole 8, the mounting frame is provided with a driving turntable 9 through a rotating shaft, an arc protrusion 7 is disposed at the outer side of the driving turntable 9, a plurality of supporting guide wheels 6 are arranged on the cambered surface bulge 7 at equal angles through a rotating shaft, one side of the reset piston 5 back to the through hole 2 is connected with the inner wall of a supporting installation cylinder 10 through a plurality of reset springs 11, one side of the detection mounting cylinder 3 is provided with a flow guide hole 18, an internal thread mounting cylinder 17 is arranged in cooperation with the flow guide hole 18, the outer side of the pressure-equalizing mounting cylinder 1 is provided with a communicating pipe 4 in cooperation with the flow guide hole 18, the outer side of the communicating pipe 4 is provided with an outer mounting thread 30 in cooperation with the internal thread mounting cylinder 17, and the communicating pipe 4 is internally provided with an electromagnetic valve 31;
the material fixture includes the frame type splint 21 that the symmetry set up, and frame type splint 21 is just being provided with the solid fixed ring of extrusion and extrusion fixed slot on one side respectively, the inside that detects installation cylinder 3 is provided with spacing collar 19, and one side of spacing collar 19 is provided with extrusion seal 20.
Fixing the device at a target position through the supporting and mounting frame 12, cutting a waterproof material to be detected according to the fixed shape of the frame-shaped clamping plate 21, performing preliminary extrusion and fixation by matching an extrusion fixing ring and an extrusion fixing groove, putting the fixed frame-shaped clamping plate 21 into the detection mounting cylinder 3, covering a fixed mounting cover 22, tightly pressing the frame-shaped clamping plate 21 on the waterproof material under the action of a limiting spring 24 and a limiting plate 29, and enabling the extrusion sealing ring 20 to deform due to the limitation of the limiting mounting ring 19 to realize closed mounting;
Example 3
Referring to fig. 1 and 2, in the embodiment of the present invention, the installation detection mechanism includes a fixed installation cover 22, the fixed installation cover 22 is disposed on the other side of the detection installation cylinder 3, the fixed installation cover 22 is provided with a positioning guide post 28 and a positioning guide groove 26 opposite to the detection installation cylinder 3, the positioning guide post 28 and the positioning guide groove 26 are both provided with fixing studs 27, one end of the fixed installation cover 22 is provided with a liquid collection cylinder 25, the liquid collection cylinder 25 is provided with scales, the fixed installation cover 22 is provided with a plurality of limiting installation posts 23 in cooperation with a limiting installation ring 19, and the limiting installation posts 23 are both provided with limiting plates 29 through limiting springs 24.
The waterproof detection module loaded with waterproof materials is installed on the communicating pipe 4 through the matching of the internal thread installation barrel 17 and the external installation thread 30, the driving turntable 9 is started to rotate for a certain angle, so that the pressure in the pressure-equalizing installation barrel 1 reaches a preset value, the electromagnetic valve 31 of the communicating pipe 4 to be detected is opened for detection, the pressure is recorded through the liquid collection barrel 25 after a period of time, the pressure is adjusted, and the corresponding electromagnetic valve 31 to be detected is opened, so that continuous multiple detection is completed.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (10)
1. The utility model provides a waterproof detection device is used in building material production, includes support installation jar (10), and one side symmetry of support installation jar (10) is provided with support mounting bracket (12), all is provided with the fixed mounting hole on support mounting bracket (12), and the inside of supporting installation jar (10) is provided with piston (5) that resets, its characterized in that still includes:
the pressure-equalizing mounting cylinder (1), the pressure-equalizing mounting cylinder (1) is arranged on the other side of the supporting mounting cylinder (10), and a plurality of through holes (2) are formed between the pressure-equalizing mounting cylinder (1) and the supporting mounting cylinder (10);
the amplification pressurization mechanism is arranged on the support mounting cylinder (10) and is used for adjusting the pressure in cooperation with the reset piston (5);
the waterproof detection modules are arranged on the outer side of the pressure-equalizing installation cylinder (1) at equal angles;
waterproof detection module is provided with material fixture including detecting installation section of thick bamboo (3) in the inside that detects installation section of thick bamboo (3) for waterproof material's quick fixed, one side that detects installation section of thick bamboo (3) is provided with installation detection mechanism, is used for fixed material fixture and carries out waterproof detection.
2. The waterproof detection device for building material production according to claim 1, characterized in that: the pressure-equalizing mounting cylinder is characterized in that a water tank (13) is arranged on the pressure-equalizing mounting cylinder (1), a water inlet pipe (14) is arranged on one side of the water tank (13), a cover is arranged on the water inlet pipe (14), the other side of the water tank (13) is communicated with the pressure-equalizing mounting cylinder (1) through a liquid inlet hole (15), and a one-way valve (16) is arranged in the liquid inlet hole (15).
3. The waterproof detection device for building material production of claim 2, characterized in that: enlarge booster mechanism and rotate mounting hole (8) including supporting installation jar (10) one side setting, the inboard cooperation of supporting installation jar (10) is rotated mounting hole (8) and is provided with the mounting bracket, and the mounting bracket is provided with drive carousel (9) through the pivot, and the outside of drive carousel (9) is provided with cambered surface arch (7), angle such as angle are provided with a plurality of support guide wheels (6) through the pivot on the cambered surface arch (7).
4. The waterproof detection device for building material production according to claim 1, characterized in that: one side of the reset piston (5) back to the through hole (2) is connected with the inner wall of the supporting and mounting cylinder (10) through a plurality of reset springs (11).
5. The waterproof detection device for building material production according to claim 1, characterized in that: one side of the detection mounting cylinder (3) is provided with a flow guide hole (18), the matching flow guide hole (18) is provided with an internal thread mounting cylinder (17), the outer side of the pressure-equalizing mounting cylinder (1) is provided with a communicating pipe (4) in matching with the flow guide hole (18), the outer side of the communicating pipe (4) is provided with an outer mounting thread (30) in matching with the internal thread mounting cylinder (17), and an electromagnetic valve (31) is arranged in the communicating pipe (4).
6. The waterproof detection device for building material production according to claim 1, characterized in that: the material clamping mechanism comprises frame-shaped clamping plates (21) which are symmetrically arranged, and the frame-shaped clamping plates (21) are respectively provided with an extrusion fixing ring and an extrusion fixing groove on one side.
7. The waterproof detection device for building material production of claim 5, characterized in that: the inside of detecting installation section of thick bamboo (3) is provided with spacing collar (19), and one side of spacing collar (19) is provided with extrusion sealing washer (20).
8. The waterproof detection device for building material production according to claim 1, characterized in that: the installation detection mechanism comprises a fixed installation cover (22), the fixed installation cover (22) is arranged on the other side of the detection installation cylinder (3), the fixed installation cover (22) and the detection installation cylinder (3) are just provided with a positioning guide post (28) and a positioning guide groove (26), the positioning guide post (28) and the positioning guide groove (26) are matched to be provided with a fixing stud (27), one end of the fixed installation cover (22) is provided with a liquid collection cylinder (25), and scales are arranged on the liquid collection cylinder (25).
9. The waterproof detection device for building material production according to claim 8, characterized in that: the fixed mounting cover (22) is matched with the limiting mounting ring (19) and is provided with a plurality of limiting mounting columns (23), and limiting plates (29) are arranged on the limiting mounting columns (23) through limiting springs (24).
10. A method for detecting a waterproofing detection device for building material production according to any one of claims 1 to 9, comprising the steps of:
a. the device is fixed at a target position through a supporting and mounting frame (12), a waterproof material to be detected is cut according to the fixed shape of a frame-shaped clamping plate (21), preliminary extrusion and fixation are carried out through the cooperation of an extrusion fixing ring and an extrusion fixing groove, the fixed frame-shaped clamping plate (21) is placed into a detection mounting cylinder (3), a fixed mounting cover (22) is covered, the frame-shaped clamping plate (21) is tightly pressed with the waterproof material under the action of a limiting spring (24) and a limiting plate (29), and at the moment, the limiting mounting ring (19) is limited to enable an extrusion sealing ring (20) to deform, so that airtight mounting is realized;
b. the waterproof detection module loaded with the waterproof material is arranged on the communicating pipe (4) through the matching of the internal thread installation cylinder (17) and the external installation thread (30);
c. closing the electromagnetic valve (31), starting the driving turntable (9) to rotate for a certain angle to generate high pressure in the pressure-equalizing mounting cylinder (1), then opening the electromagnetic valve (31), introducing high-pressure liquid into the detection mounting cylinder (3) at a high speed, generating a gap between the extrusion sealing ring (20) and the limiting mounting ring (19), completely guiding air in the detection mounting cylinder (3) out of the gap along with high-speed flowing liquid, reducing the pressure, recovering the lamination of the extrusion sealing ring (20) and the limiting mounting ring (19), driving the turntable (9) to rotate and reset, and introducing the liquid in the water tank (13) into the pressure-equalizing mounting cylinder (1) through the one-way valve (16) in the resetting process;
d. during detection, the driving turntable (9) is started to rotate by a certain angle, so that the pressure in the pressure-equalizing installation barrel (1) reaches a preset value, the electromagnetic valve (31) needing to be detected of the communicating pipe (4) is opened for detection, recording is carried out through the liquid collecting barrel (25) after a period of time, the pressure is regulated again, and the electromagnetic valve (31) corresponding to the pressure needing to be detected is opened, so that continuous multiple detection is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210495617.XA CN114577704B (en) | 2022-05-09 | 2022-05-09 | Waterproof detection device and detection method for building material production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210495617.XA CN114577704B (en) | 2022-05-09 | 2022-05-09 | Waterproof detection device and detection method for building material production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114577704A true CN114577704A (en) | 2022-06-03 |
| CN114577704B CN114577704B (en) | 2022-08-12 |
Family
ID=81769242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210495617.XA Active CN114577704B (en) | 2022-05-09 | 2022-05-09 | Waterproof detection device and detection method for building material production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114577704B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002174588A (en) * | 2000-12-07 | 2002-06-21 | Fukuda Road Construction | Method and apparatus for test of water-permeable pavement |
| CN209327170U (en) * | 2018-11-21 | 2019-08-30 | 姚卫超 | A kind of buildings waterproof management examination device |
| CN111024589A (en) * | 2020-01-06 | 2020-04-17 | 李小强 | Building waterproof material detection device based on high-pressure magnetization principle |
| CN112304846A (en) * | 2020-10-30 | 2021-02-02 | 孙欢 | Engineering building material waterproof detection device and monitoring method thereof |
| CN213779832U (en) * | 2020-12-16 | 2021-07-23 | 牛学亮 | Waterproof fixing device that detects of engineering building material |
| CN213903246U (en) * | 2020-11-18 | 2021-08-06 | 青岛美联能源有限公司 | Waterproof board imperviousness detection device |
| CN215339416U (en) * | 2021-01-06 | 2021-12-28 | 北京世纪蓝箭防水材料有限公司 | Water storage test device for waterproof construction |
| CN215493018U (en) * | 2021-05-12 | 2022-01-11 | 广西御龙新型材料有限公司 | Concrete compaction impermeability quick test device |
-
2022
- 2022-05-09 CN CN202210495617.XA patent/CN114577704B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002174588A (en) * | 2000-12-07 | 2002-06-21 | Fukuda Road Construction | Method and apparatus for test of water-permeable pavement |
| CN209327170U (en) * | 2018-11-21 | 2019-08-30 | 姚卫超 | A kind of buildings waterproof management examination device |
| CN111024589A (en) * | 2020-01-06 | 2020-04-17 | 李小强 | Building waterproof material detection device based on high-pressure magnetization principle |
| CN112304846A (en) * | 2020-10-30 | 2021-02-02 | 孙欢 | Engineering building material waterproof detection device and monitoring method thereof |
| CN213903246U (en) * | 2020-11-18 | 2021-08-06 | 青岛美联能源有限公司 | Waterproof board imperviousness detection device |
| CN213779832U (en) * | 2020-12-16 | 2021-07-23 | 牛学亮 | Waterproof fixing device that detects of engineering building material |
| CN215339416U (en) * | 2021-01-06 | 2021-12-28 | 北京世纪蓝箭防水材料有限公司 | Water storage test device for waterproof construction |
| CN215493018U (en) * | 2021-05-12 | 2022-01-11 | 广西御龙新型材料有限公司 | Concrete compaction impermeability quick test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114577704B (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104044096B (en) | Glow discharge spectrometry automatic clamp model machine structure and method | |
| CN102175402B (en) | Tee pressure-testing device and method for pipeline punching and pipeline plugging | |
| CN114577704B (en) | Waterproof detection device and detection method for building material production | |
| CN209040435U (en) | A kind of assembling concrete frame column longitudinal reinforcement positioning device | |
| CN104842155A (en) | Assembling method of multi-cylinder compressor | |
| CN105790683A (en) | Fixing pressing piece for solar cell module | |
| CN202329945U (en) | Fixture platform for detecting air tightness | |
| CN209495806U (en) | A kind of sealing device for engineering site closed guard gate's air-leakage test | |
| CN204202858U (en) | Portable general valve pressure testing device | |
| CN111173271A (en) | Assembly type formwork structure and construction process thereof | |
| CN109839249A (en) | A kind of aluminium alloy pipe pressure-resistant seal system safety testing device | |
| CN209504043U (en) | A kind of furniture processing and positioning device | |
| CN204672750U (en) | Pipeline antitheft thorn augomatic syphon device | |
| CN215862350U (en) | Water pipe indent section bar board with protection machanism | |
| CN216580077U (en) | Lifting top sealing structure | |
| CN204417617U (en) | Electrolyzer anode rod tightness system | |
| CN213658471U (en) | Polyurethane composite material tower bearing capacity detection device | |
| CN208109169U (en) | A kind of geological surroundings analysis monitoring device | |
| CN215057016U (en) | Door and window section bar of adjustable window screening elasticity | |
| CN216900349U (en) | Ionization device for mass spectrometry | |
| CN216240280U (en) | Low-wind-load outer facade structure | |
| CN219888019U (en) | Plugging structure for oil field oil testing | |
| CN216955521U (en) | Spiral pipe water pressure testing arrangement that length can be adjusted | |
| CN210293580U (en) | Clamp for air tightness test | |
| CN218643356U (en) | Concrete pipe pile convenient to connect fixedly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |