Automatic concrete impermeability instrument

Abstract

The utility model relates to the technical field of anti-permeability instruments, and discloses an automatic concrete anti-permeability instrument which comprises a test mold, and a buffer assembly is fixedly embedded in the bottom of the test mold; the buffering assembly comprises a buffering sleeve, a piston, a spring and a buffering pipe. A water seepage assembly is arranged in the test mold; the water seepage assembly comprises a water seepage disc, a sealing ring and a filter screen. According to the automatic concrete impermeability instrument, when a test piece is placed in a test mold, a water seepage assembly can be extruded to drive a piston to move downwards, through energy absorption of a spring and cooperation of the water seepage assembly to extrude a damper, buffering and energy absorption can be effectively conducted on the test piece, and damage to the test mold is avoided; according to the test mold, the gap between the test piece and the test mold can be sealed, a water source is prevented from seeping into the test mold from the gap, the test accuracy is improved, the water source can make uniform contact with the bottom of the test piece through the arranged water seepage disc and the formed water seepage groove, and the accuracy of the test result is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of water-resistance testers, and in particular to an automatic concrete water-resistance tester. Background Art

[0002] The impermeability tester is an instrument used to test the impermeability of concrete. It is mainly composed of water tank, water pump, filter, pressure sensor, pressure gauge, electronic control system and display device.

[0003] The existing patent (publication number: CN112858137B) discloses an automatic pressure-adjusting concrete impermeability tester, which relates to the field of concrete impermeability, including an impermeability tester body; a concrete test mold, a flange is installed on the impermeability tester body, used to hold concrete blocks; and a support plate, fixed on the inner wall of the concrete test mold, used to support the concrete block; wherein, a through hole is provided on the support plate, and the support plate is coaxial with the concrete test mold; a plurality of first grooves and a plurality of second grooves are provided on the support plate, and the plurality of first grooves and the plurality of second grooves are both located on the end face of the support plate away from the impermeability tester body, the first groove is an annular groove, and the plurality of first grooves are distributed outwardly along the axis of the support plate, and the plurality of first grooves are coaxial, and the second groove is a linear groove, and the second groove is distributed along the radial direction of the support plate, and the plurality of second grooves are evenly distributed along the axis of the support plate, and the second groove is connected with the plurality of first grooves, and the second groove is connected with the through hole on the support plate. This application improves the accuracy of the concrete block impermeability test data.

[0004] However, during the use of the above-mentioned water-resistance tester, multiple compression springs are used so that when the staff puts the concrete block into the concrete test mold, the compression springs can play a buffering role on the concrete block, provide a buffering distance for the concrete block, and avoid the damage of the concrete block when it hits the supporting plate, thereby improving the accuracy of the concrete block water-resistance test data. However, it lacks a damping structure, and is prone to vibration during the placement process, and the buffering effect is poor. At the same time, during use, the surface of the concrete workpiece is relatively rough, and gaps are easily generated when it contacts the inner wall of the concrete test mold, causing water to overflow from the gaps with pressure during the test, affecting the test results. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides an automatic concrete impermeability tester, which has the advantages of accurate test results, etc., and solves the problems that it lacks a damping structure, is prone to vibration during placement, and has a poor buffering effect. At the same time, during use, the surface of the concrete workpiece is relatively rough, and gaps are easily generated when it contacts the inner wall of the concrete test mold, causing water to overflow from the gaps with pressure during the test, affecting the test results.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an automatic concrete impermeability tester, comprising a test mold, the bottom of which is fixedly inlaid with a buffer component;

[0007] The buffer assembly includes a buffer sleeve, a piston, a spring and a buffer tube;

[0008] A water seepage component is provided inside the test mold;

[0009] The water seepage component includes a water seepage plate, a sealing ring and a filter screen;

[0010] The inner bottom wall of the test mold is provided with a plurality of circumferentially arranged dampers;

[0011] An expansion airbag is installed on the inner wall of the test mold, and a flexible anti-wear sleeve is fixedly connected to the inner wall of the expansion airbag.

[0012] Through the above scheme, when the test piece is placed inside the test mold, the water seepage component can be squeezed to drive the piston to move downward. Through the energy absorption of the spring and the squeezing damper of the water seepage component, the test piece can be effectively buffered and energy absorbed to avoid damage to the test mold. At the same time, the expansion airbag can be set to seal the gap between the test piece and the test mold to avoid water from seeping out of the gap into the test mold, thereby improving the test accuracy. Through the set water seepage tray and the opened water seepage trough, the water source can be evenly in contact with the bottom of the test piece, further improving the accuracy of the test results.

[0013] Furthermore, a water inlet hole is opened on the inner bottom wall of the buffer sleeve, the spring is located inside the buffer sleeve, two ends of the spring are fixedly connected to the inner bottom wall of the buffer sleeve and the bottom of the piston, the piston is fixedly connected to the bottom end of the buffer tube, and the piston is slidably connected to the buffer sleeve.

[0014] Through the above scheme, the purpose of energy absorption can be achieved through the arrangement of the spring and the piston.

[0015] Furthermore, the bottom of the seepage tray is fixedly connected to the top of the buffer tube, the sealing ring is fixedly connected to the outer surface of the seepage tray, a plurality of seepage grooves are provided on the upper surface of the seepage tray, the filter screen is fixedly connected to the inner top wall of the seepage tray, and the sealing ring is slidably connected to the test mold.

[0016] Through the above scheme, by setting the filter net, the water seepage tank can be filtered to prevent particles dropped from the external test piece from entering the buffer sleeve.

[0017] Furthermore, the top end of each damper is fixedly connected to the bottom of the water seepage tray, and the bottom end of each damper is fixedly connected to the inner bottom wall of the test mold.

[0018] Through the above scheme, the purpose of buffering and shock absorbing the external test piece can be achieved through the damper and the spring.

[0019] Furthermore, an air intake pipe and an exhaust pipe are fixedly connected to the outer surface of the expansion airbag, and electromagnetic valves are installed inside the air intake pipe and the exhaust pipe.

[0020] Through the above solution, by setting the solenoid valve, it is possible to prevent the air inside the expansion gas from escaping.

[0021] Furthermore, a double-headed threaded rod is inserted into the top end of the trial mold, and nuts are threadedly connected to both ends of the double-headed threaded rod.

[0022] Through the above solution, by setting the double-headed threaded rod, the purpose of fixing the test piece can be achieved.

[0023] Furthermore, a connection plate is fixedly connected to the bottom end of the test mold, and a plurality of circumferentially arranged through holes are formed on the upper surface of the connection plate.

[0024] Through the above scheme, the setting of the connection plate facilitates the user to connect with the external anti-seepage instrument workbench.

[0025] Furthermore, the other end of the air intake pipe is fixedly connected to a hose.

[0026] Through the above solution, the provision of the hose facilitates the user to fix the connection with the external air pump.

[0027] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0028] The automatic concrete impermeability tester can squeeze the water seepage component to drive the piston to move downward when the test piece is placed inside the test mold. The energy absorption of the spring and the squeezing damper of the water seepage component can effectively buffer the energy of the test piece to avoid damage to the test mold. At the same time, the expansion air bag can be used to seal the gap between the test piece and the test mold to avoid water from seeping out of the test mold through the gap, thereby improving the test accuracy. The water seepage tray and the water seepage trough can be used to ensure that the water source is in uniform contact with the bottom of the test piece, further improving the accuracy of the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional schematic diagram of the overall structure of this application;

[0030] Figure 2 It is a cross-sectional view of the front view of the overall structure of this application;

[0031] Figure 3 A cross-sectional view of the front view of the buffer component structure of the present application;

[0032] Figure 4 This is the structural diagram of the water seepage component for this application.

[0033] In the figure:

[0034] 1. Test mold; 2. Buffer assembly; 201. Buffer sleeve; 202. Piston; 203. Spring; 204. Buffer tube; 3. Water seepage assembly; 301. Water seepage disc; 302. Sealing ring; 303. Filter; 4. Damper; 5. Inflatable airbag; 6. Flexible anti-wear sleeve; 7. Water inlet hole; 8. Water seepage groove; 9. Inlet pipe; 10. Exhaust pipe; 11. Solenoid valve; 12. Double-headed threaded rod; 13. Nut; 14. Connecting plate; 15. Through hole; 16. Hose. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] See also Figure 1 and Figure 2 The automatic concrete impermeability tester in this embodiment includes a test mold 1, a buffer component 2 is fixedly embedded at the bottom of the test mold 1, a double-headed threaded rod 12 is inserted at the top of the test mold 1, and nuts 13 are threadedly connected at both ends of the double-headed threaded rod 12. Through the setting of the double-headed threaded rod 12, the purpose of fixing the test piece can be achieved. A connecting disk 14 is fixedly connected to the bottom end of the test mold 1, and a plurality of circumferentially arranged through holes 15 are opened on the upper surface of the connecting disk 14. Through the setting of the connecting disk 14, it is convenient for the user to connect with the external impermeability tester workbench.

[0037] See also Figure 1 , Figure 2 and Figure 3 The buffer assembly 2 includes a buffer sleeve 201, a piston 202, a spring 203 and a buffer tube 204. The inner bottom wall of the buffer sleeve 201 is provided with a water inlet hole 7. The spring 203 is located inside the buffer sleeve 201. The two ends of the spring 203 are fixedly connected to the inner bottom wall of the buffer sleeve 201 and the bottom of the piston 202. The piston 202 is fixedly connected to the bottom end of the buffer tube 204. The piston 202 is slidably connected to the buffer sleeve 201. Through the arrangement of the spring 203 and the piston 202, the purpose of energy absorption can be achieved.

[0038] A water seepage component 3 is provided inside the test mold 1 .

[0039] See also Figure 1 , Figure 2 and Figure 4The seepage component 3 includes a seepage tray 301, a sealing ring 302 and a filter screen 303. The bottom of the seepage tray 301 is fixedly connected to the top of the buffer tube 204. The sealing ring 302 is fixedly connected to the outer surface of the seepage tray 301. A plurality of seepage grooves 8 are provided on the upper surface of the seepage tray 301. The filter screen 303 is fixedly connected to the inner top wall of the seepage tray 301. The sealing ring 302 is slidably connected to the test mold 1. By setting the filter screen 303, the seepage groove 8 can be filtered to prevent particles dropped from external test pieces from entering the buffer sleeve 201.

[0040] See also Figure 1 , Figure 2 and Figure 3 The inner bottom wall of the test mold 1 is provided with a plurality of circumferentially arranged dampers 4, the top end of each damper 4 is fixedly connected to the bottom of the seepage plate 301, and the bottom end of each damper 4 is fixedly connected to the inner bottom wall of the test mold 1. Through the damper 4 and the spring 203, the purpose of buffering and shock absorbing the external test piece can be achieved.

[0041] See also Figure 1 and Figure 2 An expansion airbag 5 is installed on the inner wall of the test mold 1, and a flexible anti-wear sleeve 6 is fixedly connected to the inner wall of the expansion airbag 5. The outer surface of the expansion airbag 5 is fixedly connected to an intake pipe 9 and an exhaust pipe 10 respectively. Solenoid valves 11 are installed inside the intake pipe 9 and the exhaust pipe 10. The setting of the solenoid valve 11 can prevent the air inside the expansion gas from escaping. The other end of the intake pipe 9 is fixedly connected to a hose 16. The setting of the hose 16 facilitates the user to fix the connection with an external air pump.

[0042] The automatic concrete impermeability tester in this embodiment can squeeze the water seepage component 3 to drive the piston 202 to move downward when the test piece is placed inside the test mold 1. The energy absorption of the spring 203 and the squeezing of the damper 4 by the water seepage component 3 can effectively buffer the energy of the test piece to avoid damage to the test mold 1. At the same time, the expansion airbag 5 is set to seal the gap between the test piece and the test mold 1 to avoid water from seeping out of the test mold 1 through the gap, thereby improving the test accuracy. The water seepage tray 301 and the water seepage groove 8 can be set to ensure that the water source is in uniform contact with the bottom of the test piece, further improving the accuracy of the test result.

[0043] It should be noted that the other end of the hose 16 is connected to the output end of the external air pump.

[0044] The working principle of the above embodiment is as follows: when in use, the test piece is placed inside the test mold 1, and the impact force of the test piece falling drives the water seepage plate 301 to move downward, and the water seepage plate 301 drives the buffer tube 204 and the piston 202 to move downward, and the piston 202 compresses the spring 203 to absorb energy. At the same time, the water seepage plate 301 squeezes the damper 4 at the same time, thereby achieving the purpose of buffering the test piece. By starting the external air pump and opening the solenoid valve 11 inside the air inlet pipe 9, the gas enters the expansion airbag 5 and is in close contact with the test piece, which is sealed to improve the air tightness. Subsequently, the top of the test piece is limited by installing the double-headed threaded rod 12, and the water flow is released by driving the external water seepage meter. The water flows into the buffer sleeve 201 through the water inlet hole 7, and then enters the water seepage plate 301 through the buffer tube 204, and overflows through multiple water seepage grooves 8, so that the water source is in uniform contact with the bottom of the test piece, thereby improving the accuracy of the test result.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic concrete impermeability tester, comprising a test mold (1), characterized in that: A buffer component (2) is fixedly embedded in the bottom of the test mold (1); The buffer assembly (2) comprises a buffer sleeve (201), a piston (202), a spring (203) and a buffer tube (204); A water seepage component (3) is provided inside the test mold (1); The water seepage component (3) comprises a water seepage plate (301), a sealing ring (302) and a filter screen (303); The inner bottom wall of the test mold (1) is provided with a plurality of circumferentially arranged dampers (4); An expansion airbag (5) is installed on the inner wall of the test mold (1), and a flexible anti-wear sleeve (6) is fixedly connected to the inner wall of the expansion airbag (5).

2. The automatic concrete impermeability tester according to claim 1, characterized in that: The inner bottom wall of the buffer sleeve (201) is provided with a water inlet hole (7), the spring (203) is located inside the buffer sleeve (201), two ends of the spring (203) are fixedly connected to the inner bottom wall of the buffer sleeve (201) and the bottom of the piston (202), the piston (202) is fixedly connected to the bottom end of the buffer tube (204), and the piston (202) is slidably plugged into the buffer sleeve (201).

3. The automatic concrete impermeability tester according to claim 1, characterized in that: The bottom of the water seepage tray (301) is fixedly connected to the top of the buffer tube (204), the sealing ring (302) is fixedly connected to the outer surface of the water seepage tray (301), a plurality of water seepage grooves (8) are provided on the upper surface of the water seepage tray (301), the filter screen (303) is fixedly connected to the inner top wall of the water seepage tray (301), and the sealing ring (302) is slidably plugged into the test mold (1).

4. The automatic concrete impermeability tester according to claim 1, characterized in that: The top end of each damper (4) is fixedly connected to the bottom of the water seepage plate (301), and the bottom end of each damper (4) is fixedly connected to the inner bottom wall of the test mold (1).

5. The automatic concrete impermeability tester according to claim 1, characterized in that: An air intake pipe (9) and an exhaust pipe (10) are fixedly connected to the outer surface of the expansion airbag (5), and a solenoid valve (11) is installed inside the air intake pipe (9) and the exhaust pipe (10).

6. The automatic concrete impermeability tester according to claim 1, characterized in that: A double-ended threaded rod (12) is inserted into the top end of the test mold (1), and nuts (13) are threadedly connected at both ends of the double-ended threaded rod (12).

7. The automatic concrete impermeability tester according to claim 1, characterized in that: A connection plate (14) is fixedly connected to the bottom end of the test mold (1), and a plurality of circumferentially arranged through holes (15) are provided on the upper surface of the connection plate (14).

8. The automatic concrete impermeability tester according to claim 5, characterized in that: The other end of the air intake pipe (9) is fixedly connected to a hose (16).

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