CN209841626U - Concrete permeability measuring and clamping device based on I-shaped sealing rubber sleeve - Google Patents
Concrete permeability measuring and clamping device based on I-shaped sealing rubber sleeve Download PDFInfo
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- CN209841626U CN209841626U CN201920012311.8U CN201920012311U CN209841626U CN 209841626 U CN209841626 U CN 209841626U CN 201920012311 U CN201920012311 U CN 201920012311U CN 209841626 U CN209841626 U CN 209841626U
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Abstract
The utility model discloses a concrete permeability measures clamping device based on I shape sealing rubber sleeve, set up I shape sealing rubber sleeve on the shell inner wall, set up the end in the shell, screw through using threaded sleeve between upper end and the shell, set up the rock core room in the I shape sealing rubber sleeve, I shape sealing rubber sleeve lower extreme sets up sealing steel sleeve, sealing steel sleeve upper end sets up embedded rubber clamping ring, embedded rubber clamping ring and the inseparable laminating of I shape sealing rubber sleeve lower extreme, sealing steel sleeve and I shape sealing rubber sleeve screw through using threaded sleeve, end under the installation of sealing steel sleeve internal thread, the top of end and the indoor concrete test block of rock core are laminated mutually down, the first air inlet of upper end top fixed mounting, the right side fixed mounting gas outlet of end down. The utility model discloses avoid the destruction to low strength concrete sample, also can carry out the permeability measurement to the test piece that differs 5mm with standard concrete sample length simultaneously.
Description
Technical Field
The utility model relates to a concrete material and the relatively great sample test block's of size gas permeability measurement field specifically is based on telescopic concrete permeability measurement clamping device of I shape sealing rubber.
Background
The materials such as concrete and rock have microstructure cracks, and when the cracks pass through acidic harmful substances in the air for a long time, the structure of the concrete material can be deformed to influence the performance of the concrete material, so that the influence of the concrete microstructure cracks on the durability of the concrete material is more and more concerned. Gas permeability of concrete has also been the subject of major research as one of the parameters for evaluating the durability of concrete. The existing concrete material gas permeability measuring method comprises a direct measuring method and an indirect measuring method, wherein the direct measuring method adopts experimental equipment and utilizes different mathematical models to measure the material; the indirect measurement method mainly utilizes an empirical formula to obtain a permeability parameter through the relationship between an indirect variable and the permeability. This patent is through studying concrete permeability measurement principle, has made experimental apparatus, builds test system, carries out the direct measurement. The holder is used as a main device for measuring permeability, the difficulty of design work is to maintain the sealing performance inside the holder, and the I-shaped sealing rubber sleeve is designed as a sealing part, so that a good application effect is achieved.
In this field, a representative result was that Yangtze et al, university of eight agricultural reclamation, Heilongjiang, invented "a concrete permeability test holder" (patent application No. 201120085642). The sealing cover is adopted, the rubber sleeve is arranged in the sleeve cavity, the upper end and the lower end of the sleeve are provided with two filling rings with sealing rings, the operation links are more, the multiple matching of sealing parts is increased, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a clamping device is measured to concrete permeability based on I shape sealing rubber sleeve to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a concrete permeability measuring and clamping device based on an I-shaped sealing rubber sleeve comprises an upper end, a shell, the I-shaped sealing rubber sleeve, a lower end and a core chamber, wherein the I-shaped sealing rubber sleeve is arranged on the inner wall of the shell, the I-shaped sealing rubber sleeve is positioned in the middle of the inner wall of the shell, the upper end is arranged in the shell and is tightly attached to the upper end of the I-shaped sealing rubber sleeve, a pressing ring is embedded at the attachment position of the upper end and the upper end of the I-shaped sealing rubber sleeve, the upper end and the shell are screwed through a threaded sleeve, the core chamber is arranged in the I-shaped sealing rubber sleeve, a concrete test block is placed in the core chamber, the sealing steel sleeve is arranged at the lower end of the I-shaped sealing rubber sleeve, an embedded rubber pressing ring is arranged at the upper end of the sealing steel sleeve, and the embedded rubber pressing ring, sealing steel sleeve and I shape sealing rubber sleeve are screwed through using the screw thread section of thick bamboo, and sealing steel sleeve internal thread installs down the end, and the top of end and the bottom of core room are laminated down, and the top of end and the indoor concrete test block of core are laminated mutually down, vertically run through in the upper end and seted up the through-hole, upper end top fixed mounting has first air inlet, and the inside through-hole intercommunication of first air inlet and upper end, vertically run through in the lower end and seted up the through-hole, the right side fixed mounting of lower end has the gas outlet, the inside through-hole intercommunication of gas outlet and lower end.
As a further aspect of the present invention: a certain gap is formed between the shell and the I-shaped sealing rubber sleeve to form a cavity, a second air inlet is formed in the side surface of the shell, and the second air inlet and the gap between the shell and the I-shaped sealing rubber sleeve are communicated.
As a further aspect of the present invention: the air outlet is arranged at the position from the center of the lower end head to 10mm of the head.
As a further aspect of the present invention: the I-shaped sealing rubber sleeve adopts a wide lip edge and a reducing design, is formed in one step and is matched with the shell for use.
As a further aspect of the present invention: the core chamber is cylindrical, and the diameter is 501mm, and length is 10030 mm.
As a further aspect of the present invention: and flowmeters are arranged on the first air inlet and the air outlet.
Compared with the prior art, the beneficial effects of the utility model are that: the I-shaped sealing rubber sleeve adopts a wide lip edge and a reducing design, so that the sealing performance of the sleeve and a plug as well as the sealing performance of the sleeve and a concrete test piece are improved, and the leakage rate of a permeability measurement system is smaller than 10-6; the air around the concrete test piece is pumped by a vacuum pump, and pressure difference is generated between the air and the air pressure to form a micro negative pressure environment, so that the concrete test piece is convenient to disassemble and assemble; installing flowmeters at an air inlet and an air outlet of the permeability measurement clamping device, compensating a permeability measurement value by adopting a double-flow balance design, and testing the device and the sealing performance by combining a standard test piece; the design of screw plug sealing is adopted, the size of clamping force is controlled, the damage to a low-strength concrete test piece is avoided, and meanwhile, the permeability of the test piece with the length difference of 5mm with the length of a standard concrete test piece can be measured.
Drawings
Fig. 1 is a schematic structural diagram of an I-shaped sealing rubber sleeve in a concrete permeability measurement clamping device based on the I-shaped sealing rubber sleeve.
Fig. 2 is a structural schematic diagram of a concrete permeability measuring and clamping device based on an I-shaped sealing rubber sleeve.
In the figure: the device comprises an upper end head 1, a threaded sleeve 2, a shell 3, an I-shaped sealing rubber sleeve 4, a sealing steel sleeve 5, a threaded sleeve 6, a lower end head 7, a first air inlet 8, a second air inlet 9, an air outlet 10 and a core chamber 11.
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. 1-2, in the embodiment of the present invention, a clamping device for measuring concrete permeability based on an i-shaped sealing rubber sleeve comprises an upper end 1, a threaded sleeve 2, a housing 3, an i-shaped sealing rubber sleeve 4, a sealing steel sleeve 5, a threaded sleeve 6, a lower end 7, a first air inlet 8, a second air inlet 9, an air outlet 10, and a core chamber 11, wherein the i-shaped sealing rubber sleeve 4 is disposed on an inner wall of the housing 3, the i-shaped sealing rubber sleeve 4 is located in a middle portion of an inner wall of the housing 3, the housing 3 is provided with the upper end 1, the upper end 1 is tightly attached to an upper end of the i-shaped sealing rubber sleeve 4, a compression ring is embedded in an attachment portion of the upper end 1 and the upper end of the i-shaped sealing rubber sleeve 4, the upper end 1 and the housing 3 are screwed by using the threaded sleeve 2, the core chamber 11 is disposed in the i-, a concrete test block is placed in the core chamber 11, a sealing steel sleeve 5 is arranged at the lower end of the I-shaped sealing rubber sleeve 4, an embedded rubber press ring is arranged at the upper end of the sealing steel sleeve 5, the embedded rubber press ring is tightly attached to the lower end of the I-shaped sealing rubber sleeve 4, the sealing steel sleeve 5 and the I-shaped sealing rubber sleeve 4 are screwed through a threaded cylinder 6, a lower end 7 is installed in the sealing steel sleeve 5 through threads, the top of the lower end 7 is attached to the bottom of the core chamber 11, the top of the lower end 7 is attached to the concrete test block in the core chamber 11, a through hole is longitudinally arranged in the upper end 1 in a penetrating manner, a first air inlet 8 is fixedly installed at the top of the upper end 1 and communicated with a through hole in the upper end 1, a through hole is longitudinally arranged in the lower end 7, an air outlet 10 is fixedly installed at the right side of the lower end 7, and communicated with the through hole in, a certain gap is formed between the shell 3 and the I-shaped sealing rubber sleeve 4 to form a cavity body, a second air inlet 9 is arranged on the lateral surface of the shell, the second air inlet 9 and the gap between the shell 3 and the I-shaped sealing rubber sleeve 4 are communicated, the air outlet 10 is arranged at the position from the center of the lower end head 7 to the position of 10mm of the head, the I-shaped sealing rubber sleeve 4 adopts a wide lip edge and a reducing design, is formed in one step and is matched with the shell 3 for use, the core chamber 11 is cylindrical, the diameter is 501mm, the length is 10030mm, flowmeters are arranged on the first air inlet 8 and the air outlet 10, when the clamping device for measuring the concrete permeability based on the I-shaped sealing rubber sleeve is used, the upper end head 1 is pressed on the lip edge of the upper end of the I-shaped sealing rubber sleeve 4, the upper end head 1 is in contact with the lip edge embedded pressure ring for secondary sealing, the upper end head is screwed with the upper end of, the upper end sealing of the clamp holder is ensured, the part of the sealing steel sleeve 5 with the embedded rubber press ring is tightly pressed on the lip edge of the I-shaped sealing rubber sleeve 4, the lower locking thread cylinder 6 is screwed, finally the lower end head 7 is screwed into the concrete test block, the lower end sealing of the clamp holder is ensured, so that the sealing performance of the whole device can be ensured, a cavity body is arranged between the shell 3 and the I-shaped sealing rubber sleeve 4, the confining pressure with certain sealing pressure is added through the second air inlet 9, when the cavity body is filled with high-pressure gas, the I-shaped sealing rubber sleeve is tightly attached to the concrete test block, so that the sealing is kept, the surrounding sealing mode is adopted to further apply the confining pressure on the surface of the concrete test block to be tested, the purpose of sealing a rock core sample can be achieved, the test gas enters the concrete test block in the rock core chamber 11 through the first air inlet 8, and passes through the concrete test block, the gas is discharged from the gas outlet 10, the I-shaped sealing rubber sleeve 4 is directly arranged in the holder shell, the operation is simple and convenient, the sealing effect is good, the flow meters are arranged on the gas inlet and the gas outlet, the permeability measurement value can be compensated by adopting a double-flow balance design, and the device test and the sealing performance can be tested by combining a standard test piece.
The utility model discloses a theory of operation is: when the clamping device for measuring the concrete permeability based on the I-shaped sealing rubber sleeve is used, the upper end head 1 is tightly pressed on the lip edge of the upper end of the I-shaped sealing rubber sleeve 4, secondary sealing is carried out through the embedded pressing ring at the contact part of the upper end head 1 and the lip edge, the upper end head and the upper end of the shell 3 are screwed by the upper locking threaded sleeve 2, the upper end sealing of the clamp is ensured, the part of the sealing steel sleeve 5 with the embedded rubber pressing ring is tightly pressed on the lip edge of the I-shaped sealing rubber sleeve 4, the lower locking threaded sleeve 6 is screwed, finally the lower end head 7 is screwed into a concrete test block, the lower end sealing of the clamp is ensured, so that the sealing performance of the whole device can be ensured, a cavity body is arranged between the shell 3 and the I-shaped sealing rubber sleeve 4, confining pressure with certain sealing pressure is applied through the second air inlet 9, and when high-pressure air is filled in, and then keep sealed, adopt this kind to embrace sealing method and then exert confining pressure to the concrete test block surface that awaits measuring, can reach the purpose of sealed rock core sample, test gas gets into the concrete test block in the rock core room 11 by first air inlet 8, under certain pressure, test gas passes through the concrete test block, discharge from gas outlet 10, I shape sealing rubber sleeve 4 directly packs into the holder shell, and is easy and simple to handle, and is sealed effectual, install the flowmeter on air inlet and gas outlet, can adopt the balanced design of double flow to compensate the permeability measured value, and can combine standard test piece to test device test and sealing performance.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a clamping device is measured to concrete permeability based on I shape sealing rubber sleeve, includes upper end (1), shell (3), I shape sealing rubber sleeve (4), lower end (7) and core room (11), its characterized in that: the concrete test block is characterized in that an I-shaped sealing rubber sleeve (4) is arranged on the inner wall of the shell (3), the I-shaped sealing rubber sleeve (4) is located in the middle of the inner wall of the shell (3), an upper end (1) is arranged in the shell (3), the upper end (1) is tightly attached to the upper end of the I-shaped sealing rubber sleeve (4), a pressing ring is embedded in the attaching position of the upper end (1) and the upper end of the I-shaped sealing rubber sleeve (4), the upper end (1) and the shell (3) are screwed through a threaded sleeve (2), a core chamber (11) is arranged in the I-shaped sealing rubber sleeve (4), a concrete test block is embedded in the core chamber (11), a sealing steel sleeve (5) is arranged at the lower end of the I-shaped sealing rubber sleeve (4), an embedded rubber pressing ring is arranged at the upper end of the sealing steel sleeve (5), the embedded rubber pressing ring is tightly attached to the, sealing steel sleeve (5) and I shape sealing rubber sleeve (4) are screwed through using threaded sleeve (6), and end (7) under sealing steel sleeve (5) internal thread is installed, and the top of end (7) and the bottom of core room (11) are laminated mutually, and the top of end (7) and the concrete test block in core room (11) are laminated mutually down, vertically run through in going up end (1) and seted up the through-hole, go up end (1) top fixed mounting and have first air inlet (8), first air inlet (8) and the inside through-hole intercommunication of last end (1), vertically run through in end (7) down and seted up the through-hole, the right side fixed mounting of end (7) has gas outlet (10) down, gas outlet (10) and the inside through-hole intercommunication of lower end (7).
2. The clamping device for measuring the concrete permeability based on the I-shaped sealing rubber sleeve is characterized in that: a certain gap is formed between the shell (3) and the I-shaped sealing rubber sleeve (4) to form a cavity, a second air inlet (9) is formed in the side surface of the shell, and the second air inlet (9) is communicated with the gap between the shell (3) and the I-shaped sealing rubber sleeve (4).
3. The clamping device for measuring the concrete permeability based on the I-shaped sealing rubber sleeve is characterized in that: the air outlet (10) is arranged at the position from the center of the lower end head (7) to 10mm of the head.
4. The clamping device for measuring the concrete permeability based on the I-shaped sealing rubber sleeve is characterized in that: the I-shaped sealing rubber sleeve (4) is formed in one step by adopting a wide lip edge and reducing design and is matched with the shell (3) for use.
5. The clamping device for measuring the concrete permeability based on the I-shaped sealing rubber sleeve is characterized in that: the core chamber (11) is cylindrical, the diameter of the core chamber is 501mm, and the length of the core chamber is 10030 mm.
6. The clamping device for measuring the concrete permeability based on the I-shaped sealing rubber sleeve is characterized in that: and flowmeters are arranged on the first air inlet (8) and the air outlet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012311.8U CN209841626U (en) | 2019-01-01 | 2019-01-01 | Concrete permeability measuring and clamping device based on I-shaped sealing rubber sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012311.8U CN209841626U (en) | 2019-01-01 | 2019-01-01 | Concrete permeability measuring and clamping device based on I-shaped sealing rubber sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN209841626U true CN209841626U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920012311.8U Expired - Fee Related CN209841626U (en) | 2019-01-01 | 2019-01-01 | Concrete permeability measuring and clamping device based on I-shaped sealing rubber sleeve |
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| CN (1) | CN209841626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235593A (en) * | 2021-12-16 | 2022-03-25 | 河海大学 | Hydraulic building high-molecular waterproof coating hydraulic pressure bonding failure test device and test method |
| CN114264701A (en) * | 2021-12-28 | 2022-04-01 | 重庆科技学院 | Device and method for testing electrical property of material under multiple physical fields |
-
2019
- 2019-01-01 CN CN201920012311.8U patent/CN209841626U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235593A (en) * | 2021-12-16 | 2022-03-25 | 河海大学 | Hydraulic building high-molecular waterproof coating hydraulic pressure bonding failure test device and test method |
| CN114235593B (en) * | 2021-12-16 | 2024-04-19 | 河海大学 | Hydraulic bond damage test device and test method for high molecular waterproof coating of hydraulic building |
| CN114264701A (en) * | 2021-12-28 | 2022-04-01 | 重庆科技学院 | Device and method for testing electrical property of material under multiple physical fields |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 Termination date: 20210101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |