A device for measuring water permeability coefficient of building concrete

Abstract

The present invention provides a device for measuring water permeability coefficient of building concrete, which relates to the field of test detection, and includes: a measuring body; a water volume regulating hand wheel, which is rotatably connected to the top front end surface of the measuring body; a water inlet pipe, which is provided with a plurality of pieces, and the plurality of pieces of water inlet pipes are arranged in a circular array on the inner side of the top of the measuring body, and one group / multiple groups of water inlet pipes of the plurality of groups of water inlet pipes are respectively connected to the external water inlet pipe; a water inlet speed regulating mechanism, which is arranged on the inner side of the upper part of the measuring body; a water collecting measuring cylinder, which is arranged on the lower part of the measuring body; a clamping driving member, which is fixedly connected to the inner side of the rear part of the measuring body; and a measuring clamping transmission assembly, which is arranged inside the measuring body. No special samples are required, and the sample preparation time can be greatly reduced, the detection speed is greatly improved, and the problem of a long sample preparation process time is solved.

Description

Technical Field

[0001] The invention relates to the technical field of test and detection, and in particular to a device for measuring water permeability coefficient of building concrete. Background Art

[0002] Different parts of a building have different requirements for the water permeability of concrete. The wall needs to have a lower water permeability to prevent water seepage and moisture. The hardened ground needs to have good water permeability to ensure the water seepage rate. Therefore, the water permeability coefficient of concrete is measured during the construction process to ensure the construction quality.

[0003] For example, application number: CN202223453480.6. This application relates to a water permeability detection device for a concrete test block, and relates to the technical field of detection equipment, which includes a base, and brackets are provided on both sides of the base, and a placement box is installed on the side of the bracket, and a placement groove for placing concrete blocks is provided on the upper side of the placement box, and a sealing ring that contacts the bottom side of the concrete block is provided on the bottom side of the placement groove. A fixing assembly is provided on the upper side of the placement box, and the fixing assembly includes a pressing plate and fixing bolts, and a pressing plate is provided on the upper side of the placement box, and a convex ring inserted into the placement groove is provided on the lower side of the pressing plate, and a rubber ring that contacts the upper side of the concrete block is provided on the lower side of the convex ring, and the upper side of the pressing plate is fixedly connected to the upper side of the placement box by bolts. This application improves the sealing performance during the experiment and enhances the accuracy of the experimental detection by setting the sealing ring, rubber ring and fixing assembly.

[0004] The existing measurement of the water permeability of building concrete requires the preparation of samples first and then the measurement test. The sample preparation process takes a long time, resulting in a long detection time, which affects work efficiency. At the same time, the existing detection and measurement devices can only detect concrete with a water permeability within a certain range. When the water permeability is too large or too small, the water flow rate is difficult to meet the actual detection needs. Summary of the invention

[0005] The disclosed embodiment relates to a device for measuring the water permeability coefficient of building concrete, which does not require special samples, can significantly reduce sample preparation time, greatly improves the detection speed, can meet the testing of concrete with different water permeabilities, has good versatility, and has better practicality.

[0006] In a first aspect of the present disclosure, a device for measuring water permeability coefficient of building concrete is provided, which specifically comprises: a measuring body;

[0007] A water volume regulating hand wheel, the water volume regulating hand wheel is rotatably connected to the top front end surface of the measuring body;

[0008] A water inlet pipe, wherein a plurality of water inlet pipes are provided, and the plurality of water inlet pipes are arranged in a circular array on the inner side of the top of the measuring body, and one or more groups of water inlet pipes of the plurality of groups of water inlet pipes are respectively connected to the external water inlet pipe;

[0009] A water inlet speed regulating mechanism, wherein the water inlet speed regulating mechanism is arranged on the inner side of the upper part of the measuring body;

[0010] A water collecting and measuring cylinder, wherein the water collecting and measuring cylinder is arranged at the lower part of the measuring body;

[0011] A pressing driving member, wherein the pressing driving member is fixedly connected to the inner side of the rear portion of the measuring body;

[0012] The measuring water storage cylinder is slid on the upper part of the measuring main body, and the measuring water storage cylinder is located directly below the water inlet pipe. A water level drain port obliquely downward is arranged on the side of the measuring water storage cylinder, and the lower part of the water level drain port is connected to a drainage hose;

[0013] A water collecting funnel, which slides under the measuring body, is arranged opposite to the measuring water storage cylinder, and the water collecting measuring cylinder is located directly below the water collecting funnel. The water collecting funnel body is a funnel structure;

[0014] The measuring clamping transmission component is arranged inside the measuring body.

[0015] In at least some embodiments, the water inlet speed regulating mechanism includes:

[0016] A first bevel gear, the first bevel gear is coaxially fixedly connected to the rear end surface of the water volume regulating hand wheel;

[0017] The second bevel gear is rotatably connected to the inner side of the upper part of the measuring body, and the first bevel gear is meshed with the second bevel gear to form a bevel gear transmission structure.

[0018] In at least some embodiments, the water inlet speed regulating mechanism further comprises:

[0019] A third bevel gear, the third bevel gear is coaxially fixedly connected to the bottom of the second bevel gear;

[0020] The fourth bevel gear, there are multiple fourth bevel gears, a ball valve is arranged in the middle of each water inlet pipe, the fourth bevel gear is coaxially fixedly connected to the rotating shaft of the ball valve, and all the fourth bevel gears are meshed with the third bevel gears at the same time to form a bevel gear transmission structure.

[0021] In at least some embodiments, the measuring clamping transmission assembly includes:

[0022] A fifth bevel gear, wherein two fifth bevel gears are provided, and the two fifth bevel gears are coaxially fixedly connected to the upper and lower sides of the rotating shaft of the pressing driving member;

[0023] A compression driving screw, which is provided with two pieces in total, and the two compression driving screws are rotatably connected to the upper and lower sides of the measuring body respectively;

[0024] The sixth bevel gear is coaxially fixedly connected to the end of the compression driving screw, and the fifth bevel gear is meshed with the sixth bevel gear to form a bevel gear transmission structure.

[0025] In at least some embodiments, the measuring clamping transmission assembly further comprises:

[0026] The clamping drive slider is provided with two clamping drive sliders, and the two clamping drive sliders are respectively slidably connected to the upper and lower sides of the measuring body, and the clamping drive slider on the same side is connected with the clamping drive lead screw threaded transmission to form a lead screw nut transmission mechanism.

[0027] In at least some embodiments, the measuring clamping transmission assembly further comprises:

[0028] A first pressing connecting rod is hingedly connected to the left and right sides of the pressing driving sliding block;

[0029] The clamping connecting rod assembly is provided with four parts in total. The four clamping connecting rod assemblies are designed to be symmetrical up and down and left and right. The clamping connecting rod assembly consists of a first synchronous swing rod, a clamping middle connecting piece, and a second synchronous swing rod; the first synchronous swing rod, the first synchronous swing rod is evenly hinged to connect the upper and lower sides of the measuring body, and the other end of the clamping first connecting rod is hinged to the middle part of the innermost first synchronous swing rod. The clamping driving slider, the clamping first connecting rod, the first synchronous swing rod and the measuring body together constitute a crank slider transmission mechanism.

[0030] In at least some embodiments, the first synchronous swing rods of the same clamping link assembly are installed in parallel, and the first synchronous swing rods are hingedly connected to a clamping intermediate connecting piece at the same time, and the first synchronous swing rods, the clamping intermediate connecting piece and the measuring body together form a hinge parallelogram structure;

[0031] The second synchronous swing rod of the same clamping connecting rod assembly is installed in parallel, and the second synchronous swing rod is hinged to the inner side of the clamping intermediate connecting piece. The internal common hinge of the second synchronous swing rod has a water collecting funnel / measurement water storage cylinder. The second synchronous swing rod, the clamping intermediate connecting piece and the water collecting funnel / measurement water storage cylinder together form a hinge parallelogram structure, and the length of the second synchronous swing rod is equal to that of the first synchronous swing rod.

[0032] In at least some embodiments, adjacent portions of the first synchronous swing lever and the second synchronous swing lever are fixedly connected with a synchronous gear, and the adjacent synchronous gears are meshed to form a gear transmission mechanism.

[0033] In at least some embodiments, a water storage cylinder seal is disposed at the bottom of the measuring water storage cylinder, and there are a plurality of water storage cylinder seals, which are concentrically disposed.

[0034] In at least some embodiments, the upper end surface of the water collecting funnel is provided with a plurality of funnel seals, and the plurality of funnel seals are concentrically arranged.

[0035] The present invention provides a device for measuring water permeability coefficient of building concrete, which has the following beneficial effects:

[0036] The present invention adopts a water collecting funnel and a measuring water storage cylinder to double-side clamp the tested part, thereby achieving installation of the tested part. No special samples are needed during use, sample preparation time can be greatly reduced, detection speed is greatly improved, and the invention has good versatility and better practicality.

[0037] At the same time, the present invention adopts a water collecting funnel and a measuring water storage cylinder with a telescopic structure, and the water collecting funnel and the measuring water storage cylinder have a large telescopic range, which can meet the installation needs of samples of different thicknesses, and can select samples of appropriate thickness for testing according to different water permeabilities. It has good applicability, can meet the needs of different detection scenarios and the use of concrete with different water permeabilities, has better versatility, and has better practicality.

[0038] In addition, the present invention adopts multiple water inlet pipe structures, and the water flow rate can be controlled by changing the number of connected water inlet pipes during use. At the same time, the water flow rate of the water inlet can be adjusted by adopting a water inlet speed adjustment mechanism. It has good adjustment ability and can meet the testing of concrete with different permeabilities. It has good versatility and better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0040] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0041] In the attached picture:

[0042] Figure 1 A schematic diagram showing the overall structure of the present application;

[0043] Figure 2 A schematic diagram showing the water collecting funnel installation structure of the present application is shown;

[0044] Figure 3 A schematic diagram showing the structure of the water inlet speed regulating mechanism of the present application is shown;

[0045] Figure 4 A schematic diagram of a fourth bevel gear transmission structure of the present application is shown;

[0046] Figure 5 A schematic diagram showing the structure of the measuring clamping transmission assembly of the present application is shown;

[0047] Figure 6 A schematic diagram showing the structure of the clamping connecting rod assembly of the present application is shown;

[0048] Figure 7 A schematic diagram showing the transmission structure of the water storage cylinder for measuring the present application is shown;

[0049] Figure 8 A schematic diagram showing the bottom structure of the water storage cylinder for measuring the present application is shown;

[0050] Fig. 9 A schematic diagram showing an isometric cross-sectional structure of the present application is shown;

[0051] Reference numerals list

[0052] 1. Measuring body; 2. Water volume adjustment hand wheel; 201. First bevel gear; 3. Second bevel gear; 301. Third bevel gear; 4. Water inlet pipe; 401. Fourth bevel gear; 5. Pressing drive member; 501. Fifth bevel gear; 6. Pressing drive screw; 601. Sixth bevel gear; 7. Pressing drive slider; 8. Pressing first connecting rod; 9. First synchronous swing rod; 901. Synchronous gear; 10. Second synchronous swing rod; 11. Water collecting funnel; 1101. Funnel seal; 12. Measuring water storage cylinder; 1201. Water storage cylinder seal; 1202. Water level drain port; 13. Pressing intermediate connecting member; 14. Water collecting measuring cylinder. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Example 1: Please refer to Figures 1 to 9 :

[0055] The present invention provides a device for measuring water permeability coefficient of building concrete, comprising: a measuring body 1;

[0056] A water volume regulating hand wheel 2, the water volume regulating hand wheel 2 is rotatably connected to the top front end surface of the measuring body 1;

[0057] A water inlet pipe 4, wherein a plurality of water inlet pipes 4 are provided, and the plurality of water inlet pipes 4 are arranged in a circular array on the inner side of the top of the measuring body 1, and one or more groups of water inlet pipes 4 of the plurality of groups of water inlet pipes 4 are respectively connected to an external water inlet pipe;

[0058] A water inlet speed regulating mechanism, which is arranged on the inner side of the upper part of the measuring body 1;

[0059] A water collecting and measuring tube 14, which is arranged at the lower part of the measuring body 1;

[0060] A pressing driving member 5, the pressing driving member 5 is fixedly connected to the inner side of the rear portion of the measuring body 1;

[0061] The measuring water storage cylinder 12 is slid on the upper part of the measuring body 1, and the measuring water storage cylinder 12 is located directly below the water inlet pipe 4. A water level drain port 1202 obliquely downward is provided on the side of the measuring water storage cylinder 12, and the lower part of the water level drain port 1202 is connected to a drainage hose;

[0062] A water collecting funnel 11 is slidably mounted on the lower portion of the measuring body 1. The water collecting funnel 11 and the measuring water storage cylinder 12 are arranged opposite to each other vertically. The water collecting measuring cylinder 14 is located directly below the water collecting funnel 11. The main body of the water collecting funnel 11 is a funnel structure.

[0063] The measuring clamping transmission component is arranged inside the measuring body 1.

[0064] In the present disclosure, Figure 3 As shown, the water inlet speed regulating mechanism includes:

[0065] A first bevel gear 201, the first bevel gear 201 is coaxially fixedly connected to the rear end surface of the water volume regulating hand wheel 2;

[0066] The second bevel gear 3 is rotatably connected to the inner side of the upper part of the measuring body 1, and the first bevel gear 201 is meshed with the second bevel gear 3 to form a bevel gear transmission structure. In use, when the water volume regulating hand wheel 2 is rotated, the water volume regulating hand wheel 2 drives the second bevel gear 3 to rotate through the bevel gear transmission structure formed by the first bevel gear 201 and the second bevel gear 3.

[0067] In the present disclosure, Figure 4 As shown, the water inlet speed regulating mechanism also includes:

[0068] A third bevel gear 301, the third bevel gear 301 is coaxially fixedly connected to the bottom of the second bevel gear 3;

[0069] The fourth bevel gear 401, there are a plurality of fourth bevel gears 401, and a ball valve is provided in the middle of each water inlet pipe 4. The fourth bevel gear 401 is coaxially fixedly connected to the rotating shaft of the ball valve, and all fourth bevel gears 401 are meshed with the third bevel gear 301 at the same time to form a bevel gear transmission structure. In use, when the second bevel gear 3 rotates, the second bevel gear 3 drives all fourth bevel gears 401 to rotate synchronously through the bevel gear transmission structure formed by the fourth bevel gear 401 and the third bevel gear 301, thereby realizing the regulation of the ball valve flow rate and the water inlet speed.

[0070] In the present disclosure, Figure 6 As shown, the measuring clamping transmission assembly includes:

[0071] A fifth bevel gear 501, wherein two fifth bevel gears 501 are provided, and the two fifth bevel gears 501 are coaxially fixedly connected to the upper and lower sides of the rotating shaft of the pressing driving member 5;

[0072] A compression driving screw 6, which is provided with two pieces, and the two compression driving screws 6 are rotatably connected to the upper and lower sides of the measuring body 1 respectively;

[0073] The sixth bevel gear 601 is coaxially fixedly connected to the end of the clamping drive screw 6, and the fifth bevel gear 501 is meshed with the sixth bevel gear 601 to form a bevel gear transmission structure. In use, the clamping drive member 5 drives the two clamping drive screws 6 to rotate simultaneously through the bevel gear transmission structure formed by the fifth bevel gear 501 and the sixth bevel gear 601.

[0074] In the present disclosure, Figure 6 As shown, the measuring clamping transmission assembly also includes:

[0075] The clamping drive slider 7 is provided with two clamping drive sliders 7, and the two clamping drive sliders 7 are respectively slidably connected on the upper and lower sides of the measuring body 1. The clamping drive slider 7 on the same side is threadedly connected with the clamping drive screw 6 to form a screw nut transmission mechanism. When in use, when the two clamping drive screws 6 rotate at the same time, the clamping drive screw 6 drives the two clamping drive sliders 7 to slide at the same time through the screw nut transmission mechanism formed by the clamping drive slider 7 and the clamping drive screw 6.

[0076] In the present disclosure, Figure 6 and Figure 7 As shown, the measuring clamping transmission assembly also includes:

[0077] The first pressing link 8 is hingedly connected to the left and right sides of the pressing driving slider 7;

[0078] The clamping connecting rod assembly is provided with four parts in total. The four clamping connecting rod assemblies are symmetrically designed up and down and left and right. The clamping connecting rod assembly consists of a first synchronous swing rod 9, a clamping intermediate connecting piece 13, and a second synchronous swing rod 10; the first synchronous swing rod 9, the first synchronous swing rod 9 is evenly arranged and hinged to connect the upper and lower sides of the measuring body 1, and the other end of the clamping first connecting rod 8 is hinged to the middle part of the innermost first synchronous swing rod 9. The clamping driving slider 7, the clamping first connecting rod 8, the first synchronous swing rod 9 and the measuring body 1 together constitute a crank slider transmission mechanism. In use, when the clamping driving slider 7 slides, the clamping driving slider 7 drives the innermost first synchronous swing rod 9 to swing through the crank slider transmission mechanism jointly constituted by the clamping driving slider 7, the clamping first connecting rod 8, the first synchronous swing rod 9 and the measuring body 1.

[0079] In the present disclosure, Figure 6 and Figure 7 As shown, the first synchronous swing rod 9 of the same clamping connecting rod assembly is installed in parallel, and the first synchronous swing rod 9 is hingedly connected to a clamping intermediate connecting piece 13 at the same time, and the first synchronous swing rod 9, the clamping intermediate connecting piece 13 and the measuring body 1 together form a hinge parallelogram structure;

[0080] The second synchronous swing rod 10 of the same clamping connecting rod assembly is installed in parallel, and the second synchronous swing rod 10 is hinged to the inner side of the clamping intermediate connecting piece 13. The internal common hinge of the second synchronous swing rod 10 includes a water collecting funnel 11 / measuring water storage cylinder 12. The second synchronous swing rod 10, the clamping intermediate connecting piece 13 and the water collecting funnel 11 / measuring water storage cylinder 12 together constitute a hinge parallelogram structure. The length of the second synchronous swing rod 10 is equal to that of the first synchronous swing rod 9. In use, the hinge parallelogram structure is used to ensure that the clamping intermediate connecting piece 13 and the water collecting funnel 11 / measuring water storage cylinder 12 remain in a horizontal state while extending and retracting.

[0081] In the present disclosure, Figure 6 and Figure 7 As shown, adjacent parts of the first synchronous swing rod 9 and the second synchronous swing rod 10 are fixedly connected with a synchronous gear 901, and the adjacent synchronous gears 901 are meshed to form a gear transmission mechanism. In use, when the first synchronous swing rod 9 swings, the first synchronous swing rod 9 drives the adjacent second synchronous swing rod 10 to swing synchronously through the gear transmission mechanism formed by the meshing of adjacent synchronous gears 901.

[0082] In the present disclosure, Figure 8As shown, a water storage cylinder seal 1201 is provided at the bottom of the measuring water storage cylinder 12. There are a plurality of water storage cylinder seals 1201, which are concentrically arranged. In use, when the bottom of the measuring water storage cylinder 12 is pressed against the measured object, the water storage cylinder seal 1201 is used to seal between the measuring water storage cylinder 12 and the measured object to prevent water leakage.

[0083] In the present disclosure, Figure 2 As shown, the upper end surface of the water collecting funnel 11 is provided with multiple funnel seals 1101, and the multiple funnel seals 1101 are concentrically arranged. In use, when the water collecting funnel 11 and the measured object are pressed tightly, the funnel seals 1101 are used to seal the water collecting funnel 11 and the measured object to prevent water leakage.

[0084] The working principle of this embodiment:

[0085] During the test, the tested piece is placed between the water collecting funnel 11 and the measuring water storage cylinder 12, and the clamping driving member 5 is started. The clamping driving member 5 drives the two clamping driving screws 6 to rotate simultaneously through the bevel gear transmission structure composed of the fifth bevel gear 501 and the sixth bevel gear 601. The clamping driving screw 6 drives the two clamping driving sliders 7 to slide simultaneously through the screw nut transmission mechanism composed of the clamping driving slider 7 and the clamping driving screw 6. The clamping driving slider 7 drives the innermost first synchronous swing rod 9 to swing through the crank slider transmission mechanism composed of the clamping driving slider 7, the clamping first connecting rod 8, the first synchronous swing rod 9 and the measuring body 1. The first synchronous swing rod 9 drives the adjacent second synchronous swing rod 10 to swing synchronously through a gear transmission mechanism composed of adjacent co-moving gears 901 meshing. The first synchronous swing rod 9 and the second synchronous swing rod 10 simultaneously realize the extension and retraction of the clamping intermediate connecting piece 13 and the water collecting funnel 11 / measuring water storage cylinder 12 through the hinge parallelogram structure, and at the same time make the water collecting funnel 11 / measuring water storage cylinder 12 slide vertically up and down. The water collecting funnel 11 and the measuring water storage cylinder 12 clamp the measured object, and the measuring water storage cylinder 12 and the measured object are sealed by the water storage cylinder seal 1201, and the water collecting funnel 11 and the measured object are sealed by the funnel seal 1101.

[0086] Rotate the water volume regulating hand wheel 2, the water volume regulating hand wheel 2 drives the second bevel gear 3 to rotate through the bevel gear transmission structure composed of the first bevel gear 201 and the second bevel gear 3, the second bevel gear 3 drives all the fourth bevel gears 401 to rotate synchronously through the bevel gear transmission structure composed of the fourth bevel gear 401 and the third bevel gear 301, so as to adjust the flow of the ball valve and adjust the water inlet speed. After the water enters the measuring water storage cylinder 12, the excess water will flow out from the water level drain port 1202 to ensure that the water level in the measuring water storage cylinder 12 is constant. After the water passes through the measured piece, it is collected by the water collecting funnel 11, and then enters the water collecting measuring cylinder 14, and the water permeability coefficient of the concrete is measured by the amount of water passing through within a specified time.

[0087] In this article, there are a few points to note:

[0088] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0089] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0090] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A device for measuring water permeability coefficient of building concrete, characterized in that: include: Determination subject (1); A water volume regulating hand wheel (2), the water volume regulating hand wheel (2) being rotatably connected to the top front end surface of the measuring body (1); A water inlet pipe (4), wherein a plurality of water inlet pipes (4) are provided, and the plurality of water inlet pipes (4) are arranged in a circular array on the inner side of the top of the measuring body (1), and one or more groups of water inlet pipes (4) of the plurality of groups of water inlet pipes (4) are respectively connected to an external water inlet pipe; A water inlet speed regulating mechanism, the water inlet speed regulating mechanism being arranged on the inner side of the upper part of the measuring body (1); A water collecting and measuring cylinder (14), wherein the water collecting and measuring cylinder (14) is arranged at the lower part of the measuring body (1); A pressing driving member (5), wherein the pressing driving member (5) is fixedly connected to the inner side of the rear portion of the measuring body (1); A measuring water storage cylinder (12), wherein the measuring water storage cylinder (12) slides on the upper part of the measuring body (1), the measuring water storage cylinder (12) is located directly below the water inlet pipe (4), and a water level drain port (1202) obliquely downward is provided on the side of the measuring water storage cylinder (12), and the lower part of the water level drain port (1202) is connected to a drainage hose; A water collecting funnel (11), wherein the water collecting funnel (11) slides on the lower part of the measuring body (1), the water collecting funnel (11) and the measuring water storage cylinder (12) are arranged opposite to each other in the upper and lower parts, the water collecting measuring cylinder (14) is located directly below the water collecting funnel (11), and the main body of the water collecting funnel (11) is a funnel structure; A measuring clamping transmission assembly, wherein the measuring clamping transmission assembly is arranged inside the measuring body (1); The measuring clamping transmission assembly comprises: A fifth bevel gear (501), wherein two fifth bevel gears (501) are provided, and the two fifth bevel gears (501) are coaxially fixedly connected to the upper and lower sides of the rotating shaft of the pressing driving member (5); A compression driving screw (6), wherein two compression driving screws (6) are provided, and the two compression driving screws (6) are rotatably connected to the upper and lower sides of the measuring body (1) respectively; A sixth bevel gear (601), the sixth bevel gear (601) is coaxially fixedly connected to the end of the compression drive lead screw (6), and the fifth bevel gear (501) is meshed with the sixth bevel gear (601) to form a bevel gear transmission structure; The measuring clamping transmission assembly also includes: A clamping drive slider (7), wherein two clamping drive sliders (7) are provided, and the two clamping drive sliders (7) are respectively slidably connected to the upper and lower sides of the measuring body (1), and the clamping drive slider (7) on the same side is threadedly connected to the clamping drive lead screw (6) to form a lead screw nut transmission mechanism; A first pressing connecting rod (8), wherein the first pressing connecting rod (8) is hingedly connected to the left and right sides of the pressing driving slider (7); A clamping connecting rod assembly, wherein the clamping connecting rod assembly is provided with four parts in total, and the four clamping connecting rod assemblies are designed to be symmetrical in the upper and lower directions and the left and right directions. The clamping connecting rod assembly is composed of a first synchronous swing rod (9), a clamping intermediate connecting piece (13), and a second synchronous swing rod (10); the first synchronous swing rod (9), the first synchronous swing rod (9) is evenly arranged and hingedly connected to the upper and lower sides of the measuring body (1), the other end of the clamping first connecting rod (8) is hingedly connected to the middle part of the innermost first synchronous swing rod (9), and the clamping driving slider (7), the clamping first connecting rod (8), the first synchronous swing rod (9) and the measuring body (1) together form a crank slider transmission mechanism; The first synchronous swing rod (9) of the same clamping connecting rod assembly is installed in parallel, and the first synchronous swing rod (9) is hingedly connected to a clamping intermediate connecting piece (13). The first synchronous swing rod (9), the clamping intermediate connecting piece (13) and the measuring body (1) together form a hinge parallelogram structure; The second synchronous swing rod (10) of the same clamping connecting rod assembly is installed in parallel. The second synchronous swing rod (10) is hingedly connected to the inner side of the clamping intermediate connecting piece (13). The internal common hinge of the second synchronous swing rod (10) includes a water collecting funnel (11) / a water measuring cylinder (12). The second synchronous swing rod (10), the clamping intermediate connecting piece (13) and the water collecting funnel (11) / a water measuring cylinder (12) together form a hinge parallelogram structure. The length of the second synchronous swing rod (10) is equal to the length of the first synchronous swing rod (9).

2. A device for measuring water permeability coefficient of building concrete according to claim 1, characterized in that: The water inlet speed regulating mechanism comprises: A first bevel gear (201), the first bevel gear (201) is coaxially fixedly connected to the rear end surface of the water volume regulating hand wheel (2); The second bevel gear (3) is rotatably connected to the inner side of the upper part of the measuring body (1); the first bevel gear (201) is meshed with the second bevel gear (3) to form a bevel gear transmission structure.

3. A device for measuring water permeability coefficient of building concrete according to claim 2, characterized in that: The water inlet speed regulating mechanism also includes: A third bevel gear (301), the third bevel gear (301) is coaxially fixedly connected to the bottom of the second bevel gear (3); A fourth bevel gear (401), wherein a plurality of fourth bevel gears (401) are provided, a ball valve is provided in the middle of each water inlet pipe (4), the fourth bevel gear (401) is coaxially fixedly connected to the rotating shaft of the ball valve, and all fourth bevel gears (401) are simultaneously meshed with the third bevel gear (301) to form a bevel gear transmission structure.

4. A device for measuring water permeability coefficient of building concrete according to claim 1, characterized in that: Adjacent parts of the first synchronous swing lever (9) and the second synchronous swing lever (10) are fixedly connected with a synchronous gear (901), and the adjacent synchronous gears (901) are meshed to form a gear transmission mechanism.

5. A device for measuring water permeability coefficient of building concrete according to claim 1, characterized in that: A water storage cylinder seal (1201) is provided at the bottom of the measuring water storage cylinder (12), and a plurality of water storage cylinder seals (1201) are provided, and the plurality of water storage cylinder seals (1201) are concentrically arranged.

6. A device for measuring water permeability coefficient of building concrete according to claim 1, characterized in that: The upper end surface of the water collecting funnel (11) is provided with a plurality of funnel seals (1101), and the plurality of funnel seals (1101) are concentrically arranged.

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