CN214894736U

CN214894736U - Mortar permeameter

Info

Publication number: CN214894736U
Application number: CN202120233810.7U
Authority: CN
Inventors: 唐伟康; 徐�明; 施勇刚; 李迎; 沈超初
Original assignee: Shanghai Huipu Engineering Inspection Co ltd
Current assignee: Shanghai Huipu Engineering Inspection Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-11-26
Anticipated expiration: 2031-01-27

Abstract

The utility model belongs to the technical field of mortar quality detects and specifically relates to a mortar permeameter is related to, and it includes the permeameter body and sets up the examination mould on the permeameter body, examination mould and permeameter body can be dismantled and be connected, there is the test piece in the examination mould, be provided with seal structure in the examination mould, seal structure is including the seal cover that can produce elastic deformation, the seal cover sets up between examination mould and test piece, be provided with the cavity in the seal cover, seal structure is still including being used for to the subassembly of aerifing in the cavity and being used for showing the protection subassembly of cavity internal gas pressure, the subassembly of aerifing passes through a intercommunication of communicating pipe with the cavity, the subassembly of aerifing passes through two intercommunications of communicating pipe with the protection subassembly. The present application has the effect of reducing the cost of the test.

Description

Mortar permeameter

Technical Field

The application relates to the field of mortar quality detection, in particular to a mortar permeameter.

Background

The mortar permeameter is used for measuring the anti-permeability performance of waterproof sand, and can perform a comparison test of the mortar doped with the waterproof agent and reference mortar. The mortar permeameter is provided with a test mold, and before a test piece is pressed into the test mold of the mortar permeameter, the important thing is to coat a sealing layer on the outer side surface of the test piece, and the purpose of coating the sealing layer is to completely seal the outer side surface of the test piece and the inner wall of the test mold, so that the marginal leakage phenomenon cannot occur in the process of detecting the applied water pressure.

The paraffin sealing method and the cement and grease sealing method are commonly used in the test, wherein the paraffin sealing method is characterized in that a layer of molten paraffin with a small amount of rosin added therein is coated on the outer side surface of a test piece, then the test piece is pressed into a test mold preheated by an electric furnace or an oven by using a pressurizer, the test piece is flush with the bottom of the test mold, the test mold is in contact with pressure after being cooled, and the preheating temperature of the test mold is determined by that the paraffin is slowly molten when contacting the test mold, but does not flow. The cement and grease sealing means that a triangular knife is used for uniformly scraping and coating a sealing material on the outer side surface of a test piece, the thickness of a coating is 1-2 mm, then a test die is sleeved on the coating, and the test piece is pressed in, so that the test piece is parallel and level to the bottom of the test die.

In view of the above-mentioned related technologies, the inventor believes that the paraffin and the butter are both consumables, which causes a large consumption of additional materials in the test and increases the test cost.

SUMMERY OF THE UTILITY MODEL

In order to reduce the cost of the test, the application provides a mortar permeameter.

The application provides a mortar permeameter adopts following technical scheme:

a mortar permeameter comprises a permeameter body and a test mold arranged on the permeameter body, wherein the test mold is detachably connected with the permeameter body, a test piece is arranged in the test mold, a sealing structure is arranged in the test mold and comprises a sealing sleeve capable of generating elastic deformation, the sealing sleeve is arranged between the test mold and the test piece, a cavity is arranged in the sealing sleeve, the sealing structure further comprises an inflation assembly and a protection assembly, the inflation assembly is used for inflating the cavity, the protection assembly is used for displaying the air pressure in the cavity, the inflation assembly is communicated with the cavity through a first communicating pipe, and the inflation assembly is communicated with the protection assembly through a second communicating pipe.

Through adopting above-mentioned technical scheme, aerify to the cavity through the gas charging component, make the seal cover inflation fill the gap between test piece and the examination mould, the seal cover can be used repeatedly to reach the phenomenon that reduces additional material consumption in the experiment, the protection subassembly is used for testing the pressure in the cavity simultaneously, and then confirm the pressure in the cavity, too big phenomenon in the cavity in order to reduce to appear, in order to reach the purpose of protection test piece and seal cover, reduce the phenomenon that the seal cover damaged the change, further reduce experimental cost.

Preferably, the inflatable structure includes aerifys sleeve and intercommunication piston, it aerifys the chamber to be provided with in the sleeve, the both ends of intercommunication pipeline one communicate with aerifing chamber, cavity respectively, it has seted up the inflation inlet to aerify sleeve one end, inflation inlet department is provided with the limiting plate that is used for blockking the intercommunication piston, the hole of aerifing has been seted up on the limiting plate, and the sleeve other end of aerifing is provided with the bottom plate, the intercommunication piston sets up in aerifing the intracavity, intercommunication piston and aerify sleeve sliding connection.

Through adopting above-mentioned technical scheme, the intercommunication piston removes, can make the gas that fills enter into the cavity from intercommunication pipeline one to reach the sealed purpose of messenger's seal cover inflation, put the pressure reduction messenger of gas port department, the intercommunication piston can reset, seals intercommunication pipeline one.

Preferably, a first resetting piece for communicating the piston to move towards the inflating opening is arranged in the inflating sleeve, and the first resetting piece is arranged between the communicating piston and the bottom plate.

Through adopting above-mentioned technical scheme, the setting of piece one that resets accelerates the reduction that communicates the piston, reduces the phenomenon that gas leaks.

Preferably, the first resetting piece is a spring.

Through adopting above-mentioned technical scheme, the setting of spring to reach the mesh that the reseing of intercommunication piston is accelerated.

Preferably, the first resetting piece is of a conical spiral structure, and the diameter of the end, connected with the communicating piston, of the first resetting piece is smaller than the diameter of the end, connected with the bottom plate, of the first resetting piece.

Through adopting above-mentioned technical scheme, the piece that resets sets up to conical helical structure's spring, and the compression capacity that makes the piece that resets one is big more, and the elastic coefficient is big more, makes the effect of intercommunication piston automatic re-setting better.

Preferably, the protection assembly comprises a testing sleeve, a testing piston and a testing rod, a first sealing plate and a second sealing plate are arranged at two ends of the testing sleeve respectively, an object placing cavity is formed in the testing sleeve, two ends of a communicating pipeline II are communicated with the object placing cavity and an air inflation cavity respectively, the testing piston is arranged in the object placing cavity, the testing piston is connected with the testing sleeve in a sliding mode, the testing rod is fixed with the testing piston, the testing rod penetrates through the first sealing plate, and the testing rod is connected with the first sealing plate in a sliding mode.

Through adopting above-mentioned technical scheme, when gas filled structure internal pressure increase, the pressure increase between test piston and the closing plate two, the test piston can remove in the test sleeve to the size of the removal of movement display cavity internal gas pressure through the test pole.

Preferably, the test rod is provided with scale marks.

Through adopting above-mentioned technical scheme, the user of being convenient for observes the displacement volume of test bar.

Preferably, the protection assembly comprises a first resetting piece for resetting the test piston, and the first resetting piece is arranged between the test piston and the first sealing plate

Through adopting above-mentioned technical scheme for accelerate the reset of test piston.

Drawings

Fig. 1 is a schematic view of the overall structure of the present application.

Fig. 2 is a partial structural view at a in fig. 1.

Fig. 3 is a sectional structure diagram showing a seal structure.

Reference numerals: 1. a permeameter body; 10. a test seat; 100. a convex edge; 101. a water outlet hole; 102. a seal ring; 2. testing a mold; 20. testing the sleeve; 21. a connecting plate; 22. a fixing member; 220. a bolt; 221. a nut; 23. a test piece; 3. sealing sleeves; 30. a cavity; 4. an inflation assembly; 40. an inflatable sleeve; 400. a base plate; 401. an inflation inlet; 402. a sealing cover; 403. an inflation cavity; 404. a limiting plate; 405. an inflation hole; 41. a communicating piston; 42. a first resetting part; 5. a protection component; 50. testing the sleeve; 500. a first sealing plate; 502. a second sealing plate; 51. testing the piston; 510. a test rod; 511. scale lines; 52. a second resetting piece; 53. a storage cavity; 6. a first communicating pipe; 7. and a second communicating pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a mortar permeameter.

Example 1: referring to fig. 1 and 2, the mortar permeameter includes permeameter body 1 and the examination mould 2 of setting on permeameter body 1, be provided with a plurality of test seats 10 on the permeameter body 1, be provided with protruding edge 100 and apopore 101 on the test seat 10, protruding edge 100 is the annular setting, protruding edge 100 sets up the upper surface of doing in the experiment, protruding edge 100 outer lane cover is established sealing washer 102, apopore 101 is seted up between protruding edge 100, apopore 101 intercommunication has the water sending equipment, the water sending equipment can discharge water through apopore 101. The test die 2 comprises a test sleeve 20 and a connecting plate 21, the cross section of the test sleeve 20 is in a circular shape, the inner diameter of the test sleeve 20 is the same as the outer diameter of the convex edge 100, the connecting plate 21 is a circular annular plate, and the connecting plate 21 is fixed at one end of the test sleeve 20. The test bed is provided with a plurality of fixing pieces 22, each fixing piece 22 comprises a bolt 220 and a nut 221, through holes are formed in the test bed and the connecting plate 21, the bolts 220 penetrate through the through holes, the nuts 221 are in threaded connection with the bolts 220, and the test mold 2 is fixed on the test bed 10 through the fixing pieces 22. A test piece 23 is arranged in the test die 2, and the test piece 23 is a cement column with a circular section. Be provided with seal structure between examination mould 2 and the test piece 23, seal structure is used for carrying out seal structure to the clearance between test piece 23 and the examination mould 2, through apopore 101 to the drainage in the test sleeve 20, water oozes from test piece 23, with the setting of sealed structure, has reduced the consumption of additional material in the experiment, the experimental cost of reduction.

Referring to fig. 2 and 3, the sealing structure includes a sealing sleeve 3, an inflation assembly 4 and a protection assembly 5, the sealing sleeve 3 is made of rubber and other materials capable of generating elastic deformation, a cavity 30 is formed in the sealing sleeve 3, the sealing sleeve 3 is pasted on the inner wall of the test sleeve 20, a communication pipe I6 is arranged between the inflation assembly 4 and the sealing sleeve 3, the inflation assembly 4 is communicated with the cavity 30 through the communication pipe I6, a communication pipe II 7 is arranged between the inflation assembly 4 and the protection assembly 5, the inflation assembly 4 is communicated with the protection assembly 5 through the communication pipe II 7, and the sealing sleeve 3 is used for sealing a gap between the test piece 23 and the test sleeve 20. The inflation assembly 4 is used for inflating the sealing sleeve 3 with gas, and the protection assembly 5 is used for displaying the pressure in the sealing sleeve 3 and reducing the phenomenon that the overshoot sealing sleeve 3 is damaged.

Referring to fig. 3, the inflation assembly 4 includes an inflation sleeve 40, a communication piston 41 and a first resetting member 42, the cross section of the inflation sleeve 40 is circular, the inflation sleeve 40 is vertical, a bottom plate 400 is arranged at the bottom of the inflation sleeve 40, an inflation opening 401 is arranged at the top of the inflation sleeve 40, a sealing cover 402 is arranged at the inflation opening 401, and the sealing cover 402 is in threaded connection with the inflation sleeve 40. The inflatable sleeve 40 is internally provided with an inflatable cavity 403, a limiting plate 404 is arranged in the inflatable cavity 403, an inflatable hole 405 is formed in the limiting plate 404, the communicating piston 41 is arranged between the first limiting plate 404 and the bottom plate 400, the communicating piston 41 is in sliding connection with the inner wall of the inflatable sleeve 40, the first resetting piece 42 is arranged as a spring, two ends of the first resetting piece 42 are respectively fixed with the communicating piston 41 and the bottom plate 400, the first resetting piece 42 is provided with a conical spiral structure, and the diameter of the connecting end part of the first resetting piece 42 and the communicating piston 41 is smaller than that of the connecting end part of the resetting piece and the bottom plate 400. Two ends of the first communication pipe 6 are respectively communicated with the cavity 30 and the inflation cavity 403. And (3) removing the sealing cover 402, filling gas into the gas filling cavity 403 from the gas filling port 401, and moving the communicating piston 41 downwards to enable the gas to be introduced into the cavity 30 from the communicating pipe I6, so that the sealing sleeve 3 is expanded to seal the space between the test sleeve 20 and the test piece 23.

Referring to fig. 3, protection component 5 includes test sleeve 50, test piston 51 and two 52 that reset, the vertical setting of test sleeve 50, the top of test sleeve 50 is provided with sealing plate one 500, the bottom of test sleeve 50 is provided with sealing plate two 502, set up in the test sleeve 50 and put thing chamber 53, test piston 51 sets up and just with test sleeve 50 sliding fit in putting thing chamber 53, be provided with test rod 510 on the test piston 51, test rod 510 one end is fixed with test piston 51, the other end runs through test sealing plate one 500, test rod 510 and sealing plate sliding connection, be provided with scale mark 511 on the test rod 510. The second resetting piece 52 is a spring, the second resetting piece 52 is sleeved on the testing rod 510, and two ends of the second resetting piece 52 are respectively fixed with the testing piston 51 and the first sealing plate 500. When the communication piston 41 moves towards the direction of the bottom plate 400, the air pressure between the test piston 51 and the second sealing plate 502 rises, so that the test piston 51 and the test rod 510 move towards the first sealing plate 500, and a user can determine whether the pressure in the cavity 30 is excessive by reading the reading on the test rod 510.

The implementation principle of the mortar permeameter in the embodiment of the application is as follows: the test mould 2 is arranged on the test seat 10, the test piece 23 is placed in the test mould 2, and gas is filled into the cavity 30 through the gas-filled sleeve 40, so that the sealing sleeve 3 is expanded to fill a gap between the test piece 23 and the test mould 2, the sealing purpose is achieved, the sealing sleeve 3 can be repeatedly used, and the cost is saved; by checking the test rod 510, the air pressure in the cavity 30 is judged, the phenomenon that the sealing sleeve 3 is damaged due to overhigh pressure in the cavity 30 is reduced, and the cost is further saved.

Example 2: the structure of this embodiment is substantially the same as that of embodiment 1, except that the test sleeve 50 and the test rod 510 are disposed, in this embodiment, the test rod 510 is not disposed, the test sleeve 50 is made of transparent material such as plastic and glass, the outer wall of the test sleeve 50 is disposed with a measuring line, the test piston 51 moves in the test sleeve 50, and the measuring line on the test sleeve 50 can be directly read to determine whether the pressure in the cavity 30 is too large

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a mortar permeameter, includes permeameter body (1) and examination mould (2) of setting on permeameter body (1), examination mould (2) can be dismantled with permeameter body (1) and be connected, be provided with test piece (23), its characterized in that in examination mould (2): the test structure is characterized in that a sealing structure is arranged in the test mold (2), the sealing structure comprises a sealing sleeve (3) capable of generating elastic deformation, the sealing sleeve (3) is arranged between the test mold (2) and a test piece (23), a cavity (30) is arranged in the sealing sleeve (3), the sealing structure further comprises an inflation component (4) used for inflating the cavity (30) and a protection component (5) used for displaying air pressure in the cavity (30), the inflation component (4) is communicated with the cavity (30) through a first communicating pipe (6), and the inflation component (4) is communicated with the protection component (5) through a second communicating pipe (7).

2. The mortar permeameter of claim 1, wherein: aerify subassembly (4) including inflating sleeve (40) and intercommunication piston (41), it aerifys chamber (403) to be provided with in inflating sleeve (40), the both ends of communicating pipe (6) communicate with inflating chamber (403), cavity (30) respectively, inflation inlet (401) have been seted up to inflating sleeve (40) one end, inflation inlet (401) department is provided with limiting plate (404) that are used for blockking intercommunication piston (41), gas charging hole (405) have been seted up on limiting plate (404), and the inflation sleeve (40) other end is provided with bottom plate (400), intercommunication piston (41) set up in inflating chamber (403), intercommunication piston (41) and inflation sleeve (40) sliding connection.

3. The mortar permeameter of claim 2, wherein: a first resetting piece (42) used for communicating the piston (41) to move towards the inflating opening (401) is arranged in the inflating sleeve (40), and the first resetting piece (42) is arranged between the communicating piston (41) and the bottom plate (400).

4. The mortar permeameter of claim 3, wherein: the first resetting piece (42) is arranged as a spring.

5. The mortar permeameter of claim 4, wherein: the first resetting piece (42) is of a conical spiral structure, and the diameter of one end, connected with the communicating piston (41), of the first resetting piece (42) is smaller than that of one end, connected with the bottom plate (400), of the first resetting piece (42).

6. The mortar permeameter of claim 1, wherein: protection component (5) are including test sleeve (50), test piston (51) and test rod (510), the both ends of test sleeve (50) are provided with closing plate one (500) and closing plate two (502) respectively, be provided with in test sleeve (50) and put thing chamber (53), the both ends of communicating pipe two (7) respectively with put thing chamber (53), aerify chamber (403) intercommunication, test piston (51) set up put in thing chamber (53), test piston (51) and test sleeve (50) sliding connection, test rod (510) are fixed with test piston (51), test rod (510) run through closing plate one (500), test rod (510) and closing plate one (500) sliding connection.

7. The mortar permeameter of claim 6, wherein: the test rod (510) is provided with scale marks (511).

8. The mortar permeameter of claim 6, wherein: the protection assembly (5) comprises a first resetting piece (42) for resetting the test piston (51), and the first resetting piece (42) is arranged between the test piston (51) and the first sealing plate (500).