A dam body concrete test piece strength detection device for a water conservancy flood storage filling engineering

Abstract

The application relates to the technical field of concrete test piece strength detection, in particular to a dam body concrete test piece strength detection device for water storage and flood storage filling engineering, which comprises a base, a plurality of measuring cylinders, sealing gaskets, a first piston slidingly and sealingly arranged in the measuring cylinder, a plurality of supporting plates, a sealing element, a connecting plate, the sealing element being capable of driving the supporting plates to approach the sealing gaskets, a pressurizing element, a connecting frame and the like. The sealing connection of the first piston and the measuring cylinder and the sealing connection of the dam body concrete test piece and the sealing gaskets can effectively control the flow direction of the detection liquid (i.e. the liquid flow direction is always perpendicular to the test piece surface), i.e. can avoid liquid leakage and can reduce the lateral penetration range of the detection liquid, so as to improve the detection precision. The pressurizing element can improve the extrusion degree (penetration degree) of the detection liquid on the test piece, so as to effectively shorten the detection time and improve the timeliness of the detection (avoid the influence of the detection on the actual construction progress).

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of concrete test piece strength detection, and particularly relates to a dam body concrete test piece strength detection device for water storage and flood storage filling engineering. BACKGROUND

[0002] The dam body concrete test piece strength detection for water storage and flood storage filling engineering includes compression strength detection (evaluating the pressure bearing capacity of concrete to ensure the safety of the structure), flexural strength detection (evaluating the bearing capacity of concrete under bending load, which is suitable for thin-walled structures and members bearing bending moments), durability detection (evaluating the performance of concrete in the long-term use process, such as impermeability, freeze-thaw resistance, chemical corrosion resistance and the like), and the like. The impermeability of the dam body concrete in the water storage and flood storage filling engineering is very important and directly affects the overall quality and service life of the dam body.

[0003] Common impermeability detection methods include the permeability coefficient method and the step-by-step pressurization method. The step-by-step pressurization method is used for common concrete impermeability detection and is not suitable for the detection of the dam body concrete test piece with high impermeability requirement in the water storage and flood storage filling engineering. The permeability coefficient method is used for obtaining relatively accurate impermeability results by measuring the water quantity passing through the test piece per unit time under a certain water pressure and is suitable for the concrete performance detection of the dam body in the water storage and flood storage filling engineering. The water seepage instrument is commonly used for experimental testing.

[0004] The common water seepage instrument includes a sealing base and a measuring cylinder. During detection, the concrete test piece is sealingly connected with the measuring cylinder through the sealing base. The measuring cylinder is loaded with a certain water head height of detection liquid. After standing for a period of time, the water head height change in the measuring cylinder is observed, and the impermeability of the test piece can be clearly obtained through formula calculation.

[0005] The water seepage instrument is tested by using the natural seepage method. Generally, the period of one impermeability detection is relatively long, especially for the detection of the dam body concrete test piece (high impermeability) in the water storage and flood storage filling engineering. When the natural seepage method is used for testing, the detection liquid is difficult to seep into the test piece in a short time, so the water head height change in the measuring cylinder is not obvious, and the detection period needs to be further expanded (the volume of the measuring cylinder is relatively fixed, that is, the water pressure of the natural seepage is relatively small). The dam body of the water storage and flood storage filling engineering is generally not integrally poured (the segmented pouring method is usually used). The concrete strength detection of each segment of the dam body needs to be up to standard before the pouring of the next segment of the dam body. Therefore, the impermeability detection of the dam body concrete test piece in the water storage and flood storage filling engineering by using the common water seepage instrument will greatly affect the construction progress. SUMMARY

[0006] The dam body concrete test piece strength detection device of the water conservancy flood storage filling engineering aims to solve the problems in the background art.

[0007] To achieve the above object, the present application provides the following technical solutions.

[0008] A dam body concrete test piece strength detection device of a water conservancy flood storage filling engineering, comprising a base; a support frame and a plurality of stand columns are fixedly installed on the base;

[0009] It also comprises a plurality of measuring cylinders, which are fixedly connected between the support frame and the fixing seat through the fixing seat; and a sealing gasket is fixedly installed on the fixing seat; a first piston is slidingly and sealingly installed in the measuring cylinder;

[0010] A plurality of receiving plates are slidingly and embeddably connected with the stand columns;

[0011] A sealing member comprises a connecting plate connected with the receiving plate, and the sealing member can drive the receiving plate to approach the sealing gasket through the connecting plate;

[0012] It also comprises a pressure member arranged on the support frame, comprising an adapter frame slidingly connected with the stand column, which can approach the measuring cylinder to increase the water pressure in the measuring cylinder by extruding the first piston.

[0013] As a further scheme of the present application, the sealing member further comprises a sealing motor fixedly installed on the support frame; a sealing lead screw column is fixedly installed on the output end of the sealing motor; a second threaded sleeve is threadedly connected with the sealing lead screw column; and the second threaded sleeve is fixedly connected with the connecting plate.

[0014] As a further scheme of the present application, the sealing member further comprises a buffer column fixedly installed on the receiving plate; a buffer sleeve slidingly and embeddably connected with the buffer column is fixedly installed on the connecting plate; a buffer spring is arranged in the buffer sleeve, and the two ends of the buffer spring are respectively in contact with the buffer column and the buffer sleeve.

[0015] As a further scheme of the present application, the pressure member further comprises a pressure motor fixedly installed on the support frame, a pressure lead screw column is fixedly installed on the output end of the pressure motor, and a first threaded sleeve is threadedly connected with the pressure lead screw column; and the first threaded sleeve is fixedly connected with the adapter frame.

[0016] As a further further scheme of the present application: the pressing member further comprises a telescopic sleeve fixedly installed on the first piston; a telescopic column slidably embedded in the telescopic sleeve is fixedly installed on the connecting frame; a partition plate is slidably installed in the telescopic sleeve; a detection spring and a pressing spring are arranged in the telescopic sleeve; the detection spring and the pressing spring are arranged on two sides of the partition plate respectively; two ends of the detection spring are in abutment with the partition plate and the telescopic column respectively; and two ends of the pressing spring are in abutment with the partition plate and the telescopic sleeve respectively.

[0017] As a further further scheme of the present application: the elastic force of the detection spring is always smaller than the elastic force of the pressing spring.

[0018] As a further further scheme of the present application: a fixed sleeve is fixedly installed on the fixed seat and is sleeved with the measuring cylinder; a plurality of groups of notches are equidistantly formed in the circumferential direction of the fixed sleeve; a baffle is fixedly installed in the fixed sleeve; a second piston is slidably and sealingly installed in the fixed sleeve; a sealing spring is arranged in the fixed sleeve; two ends of the sealing spring are in abutment with the second piston and the fixed sleeve respectively; and a top rod is fixedly installed on the second piston.

[0019] As a further further scheme of the present application: the distance between the sealing gasket and the receiving plate is smaller than the distance between the top rod and the receiving plate.

[0020] As a further further scheme of the present application: a positioning wedge is fixedly installed on each side edge of the receiving plate.

[0021] As a further further scheme of the present application: a scale line is formed on the measuring cylinder.

[0022] Compared with the prior art, the beneficial effects of the present application are: through the sealed connection of the first piston and the measuring cylinder and the sealed connection of the dam concrete test piece and the sealing gasket, the flow direction of the detection liquid can be effectively controlled (i.e. the liquid flow direction is always perpendicular to the test piece surface), that is, liquid leakage is avoided, and the lateral penetration range of the detection liquid is also reduced, thereby improving the detection accuracy; through the pressure increasing piece to increase the extrusion degree (penetration degree) of the detection liquid on the test piece, the detection time can be effectively shortened to improve the timeliness of the detection (avoiding the influence of the detection on the actual construction progress); through the elastic force of the detection spring and the pressure spring, the penetration degree of the detection liquid on the test piece can be effectively increased, and the deformation of the device under pressure can be effectively avoided; and through the setting of the detection spring and the pressure spring, the two stages of "sealing detection" and "formal pressure test" which have different requirements for pressure can be intelligently separated, thereby achieving the three goals of safety verification, equipment protection and accurate pressure control; since the system pressure is smoothly transitioned from "low pressure" to "high pressure" instead of instantaneously jumping, rigid impact is effectively avoided, the instantaneous stress borne by the first piston, the measuring cylinder and the like is significantly reduced, thereby effectively avoiding the permanent deformation or damage of the device and improving the service life and reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Structure diagram of an embodiment of the dam concrete test piece strength detection device for water conservancy flood storage filling projects.

[0024] Figure 2 Structure diagram of another view of an embodiment of the dam concrete test piece strength detection device for water conservancy flood storage filling projects.

[0025] Figure 3 Structure diagram of the pressure increasing piece in an embodiment of the dam concrete test piece strength detection device for water conservancy flood storage filling projects.

[0026] Figure 4 Structure diagram of the first piston in an embodiment of the dam concrete test piece strength detection device for water conservancy flood storage filling projects.

[0027] Figure 5 Structure diagram of the receiving plate in an embodiment of the dam concrete test piece strength detection device for water conservancy flood storage filling projects.

[0028] Figure 6 Structure diagram of the connecting plate in an embodiment of the dam concrete test piece strength detection device for water conservancy flood storage filling projects.

[0029] Figure 7 Structure diagram of the positioning wedge in an embodiment of the dam concrete test piece strength detection device for water conservancy flood storage filling projects.

[0030] Figure 8The structural schematic view of the fixed seat in one embodiment of the dam body concrete test piece strength detection device for water conservancy flood storage filling engineering.

[0031] Figure 9 For Figure 8 The structural schematic view of the section view angle.

[0032] Figure 10 For Figure 9 The structural schematic view of A in the above.

[0033] In the figure: 1, base; 101, support frame; 102, stand column;

[0034] 2, fixed seat; 201, sealing gasket;

[0035] 3, measuring cylinder; 301, scale line;

[0036] 4, pressurizing motor;

[0037] 5, pressurizing screw column;

[0038] 6, first threaded sleeve; 601, adapter frame;

[0039] 7, telescopic column;

[0040] 8, telescopic sleeve;

[0041] 9, first piston;

[0042] 10, partition plate;

[0043] 11, detection spring;

[0044] 12, pressurizing spring;

[0045] 13, receiving plate; 1301, positioning wedge;

[0046] 14, sealing motor;

[0047] 15, sealing screw column;

[0048] 16, second threaded sleeve; 1601, connecting plate;

[0049] 17, buffer sleeve;

[0050] 18, buffer column;

[0051] 19, buffer spring;

[0052] 20, jacking rod;

[0053] 21, fixed sleeve; 2101, notch; 2102, baffle;

[0054] 22, sealing spring;

[0055] 23. The second piston. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0057] In addition, the elements in the present application are referred to as "fixed to" or "disposed on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes, and do not represent the only implementation.

[0058] Please refer to Figures 1-10 In the embodiments of the present application, a dam body concrete test piece strength detection device for water conservancy flood storage filling engineering, comprising a base 1; the base 1 is fixedly installed with a support frame 101 and a plurality of groups of stand columns 102;

[0059] It also includes a plurality of groups of measuring cylinders 3, which are fixedly connected between the support frame 101 and the fixing seat 2; and the fixing seat 2 is fixedly installed with a sealing gasket 201; the first piston 9 is slidingly and sealingly installed in the measuring cylinder 3;

[0060] A plurality of groups of receiving plates 13 are slidingly and fittingly connected with the stand columns 102;

[0061] A sealing member, comprising a connecting plate 1601 connected with the receiving plate 13, the sealing member can drive the receiving plate 13 to approach the sealing gasket 201 through the connecting plate 1601;

[0062] It also includes a pressurizing member; which is arranged on the support frame 101, comprising a link frame 601 slidingly connected with the stand column 102, the link frame 601 can approach the measuring cylinder 3 to increase the water pressure in the measuring cylinder 3 by extruding the first piston 9.

[0063] In use, the dam body concrete test piece is placed on the receiving plate 13 in the example of the embodiment combined with all the features described in the present application.

[0064] The measuring cylinder 3 is loaded with a certain amount of detection liquid; before detection, the water outlet end of the measuring cylinder 3 is in a blocked state, the pressurizing part is first controlled to act, so as to drive the adapter frame 601 to slide on the stand 102 to approach the end of the measuring cylinder 3 by a distance, thereby improving the extrusion force of the first piston 9 on the detection liquid, so as to detect the sealing performance between the first piston 9 and the measuring cylinder 3, and avoid large test result errors caused by liquid leakage.

[0065] After ensuring the sealing performance between the first piston 9 and the measuring cylinder 3, the sealing part is controlled to act, the connecting plate 1601 is driven to approach the sealing gasket 201, so that the dam body concrete test piece is synchronously driven to approach and extrude the sealing gasket 201 by the bearing plate 13, so as to realize the sealing between the dam body concrete test piece and the water outlet end of the measuring cylinder 3 (the water outlet end of the measuring cylinder 3 is communicated during the extrusion of the dam body concrete test piece on the sealing gasket 201), thereby avoiding liquid leakage during the detection of the impermeability of the dam body concrete test piece, and improving the accuracy of the test result.

[0066] After ensuring the sealing performance between the dam body concrete test piece and the measuring cylinder 3, the pressurizing part is controlled to act, the adapter frame 601 is continuously driven to approach the measuring cylinder 3, so as to further increase the extrusion force of the first piston 9 on the detection liquid; when the adapter frame 601 moves to the designed position (the extrusion force of the first piston 9 on the detection liquid reaches the designed value), the position of the adapter frame 601 is maintained unchanged; after a period of time, the impermeability of the test piece is calculated by observing the change value of the water head height of the measuring cylinder 3.

[0067] Through the sealing connection between the first piston 9 and the measuring cylinder 3 and the sealing connection between the dam body concrete test piece and the sealing gasket 201, the flow direction of the detection liquid can be effectively controlled (that is, the liquid flow direction is always perpendicular to the surface of the test piece), that is, liquid leakage is avoided, and the lateral penetration range of the detection liquid is also reduced, thereby improving the detection precision; and the extrusion force of the detection liquid on the test piece is increased by the pressurizing part (penetration force), so that the detection time is effectively shortened, and the timeliness of the detection is improved (avoiding the influence of the detection on the actual construction progress).

[0068] In another embodiment of the application, the sealing part further comprises a sealing motor 14 fixedly installed on the support frame 101; a sealing lead screw column 15 is fixedly installed on the output end of the sealing motor 14; a second threaded sleeve 16 is threadedly connected to the sealing lead screw column 15; and the second threaded sleeve 16 is fixedly connected with the connecting plate 1601.

[0069] In use, the sealed motor 14 drives the sealed lead screw column 15 to rotate, and drives the second threaded sleeve 16 to move along the axial direction of the sealed lead screw column 15 through threaded cooperation, thereby driving the multiple sets of receiving plates 13 to move synchronously towards the sealing gasket 201 through the connecting plate 1601; in this process, the dam concrete test piece extrudes the sealing gasket 201 to deform, thereby enhancing the sealing performance between the dam concrete test piece and the sealing gasket 201, effectively controlling the flow direction of the detection liquid (i.e., the liquid flow direction is always perpendicular to the surface of the test piece), avoiding liquid leakage, and reducing the lateral penetration of the detection liquid.

[0070] When the sealing connection between the dam concrete test piece and the sealing gasket 201 is completed, the sealed motor 14 is controlled to be stationary, and at this time, the position of the dam concrete test piece can be locked through the threaded cooperation between the sealed lead screw column 15 and the second threaded sleeve 16, thereby ensuring that the dam concrete test piece does not appear reverse displacement due to the increase of water pressure during the detection process, so as to ensure the sealing performance.

[0071] In another embodiment of the present application, the sealing member further comprises a buffer column 18 fixedly installed on the receiving plate 13; the connecting plate 1601 is fixedly installed with a buffer sleeve 17 slidingly fitted with the buffer column 18; the buffer sleeve 17 is provided with a buffer spring 19, and the two ends of the buffer spring 19 are respectively in contact with the buffer column 18 and the buffer sleeve 17.

[0072] In use, the connecting plate 1601 moves to drive the buffer column 18 to move synchronously through the elastic force of the buffer spring 19, thereby driving the receiving plate 13 to move, and when the test piece extrudes the sealing gasket 201 (the sealing gasket 201 is completely deformed), the connecting plate 1601 continues to move to drive the buffer sleeve 17 to continue to move, thereby driving the buffer column 18 to slide inward in the buffer sleeve 17 to compress the buffer spring 19; at this time, the deformed state of the sealing gasket 201 is maintained through the elastic force of the buffer spring 19, and damage to the sealing gasket 201 caused by excessive pressure can be avoided.

[0073] When the designed water pressure (penetration degree) is too large (design value is too large, operation error), the water pressure drives the test piece to move, thereby driving the buffer column 18 to continue to move inward in the buffer sleeve 17 to further compress the buffer spring 19, thereby completing the yielding to avoid damaging the sealing gasket 201, thereby improving the service life of the device.

[0074] In another embodiment of the present application, the pressing member further comprises a pressing motor 4 fixedly installed on the support frame 101, a pressing screw rod column 5 fixedly installed on an output end of the pressing motor 4, and a first threaded sleeve 6 threadedly connected to the pressing screw rod column 5; the first threaded sleeve 6 is fixedly connected with the connecting frame 601.

[0075] In use, in the embodiment in which all the features described in the present application are combined, when detection or pressing is performed, the pressing motor 4 is actuated to drive the pressing screw rod column 5 to rotate and drive the first threaded sleeve 6 to move along the axial direction of the pressing screw rod column 5 to drive the connecting frame 601 to approach the measuring cylinder 3; as the distance between the connecting frame 601 and the measuring cylinder 3 is shortened, the extrusion force of the first piston 9 on the detection liquid is increased, so that the extrusion force of the detection liquid on the test piece is increased, i.e., the penetration degree is increased, so as to shorten the detection time and improve the detection efficiency.

[0076] When the penetration degree reaches the design value, the pressing motor 4 is stopped, and at this time, the position of the connecting frame 601 is locked through the threaded connection between the pressing screw rod column 5 and the first threaded sleeve 6, so as to effectively control the loss of the penetration degree during the detection process, thereby improving the detection accuracy.

[0077] In another embodiment of the present application, the pressing member further comprises a telescopic sleeve 8 fixedly installed on the first piston 9; a telescopic column 7 slidingly fitted with the telescopic sleeve 8 is fixedly installed on the connecting frame 601; a partition plate 10 is slidingly installed in the telescopic sleeve 8; a detection spring 11 and a pressing spring 12 are arranged in the telescopic sleeve 8; the detection spring 11 and the pressing spring 12 are arranged on two sides of the partition plate 10, respectively; the two ends of the detection spring 11 abut against the partition plate 10 and the telescopic column 7, respectively; and the two ends of the pressing spring 12 abut against the partition plate 10 and the telescopic sleeve 8, respectively.

[0078] In another embodiment of the present application, the elastic force of the detection spring 11 is always smaller than the elastic force of the pressing spring 12.

[0079] In use, in the embodiment in which all the features described in the present application are combined, when detection is performed, the connecting frame 601 approaches the measuring cylinder 3 to drive the telescopic column 7 to slide inwardly in the telescopic sleeve 8; during this process, only the detection spring 11 is compressed because the elastic force of the detection spring 11 is relatively small; when the detection spring 11 is completely compressed, the elastic force of the detection spring 11 acts on the first piston 9 through the partition plate 10 and the pressing spring 12, so as to increase the extrusion force of the first piston 9 on the detection liquid and increase the penetration degree; at this time, the change of the liquid level of the detection liquid in the measuring cylinder 3 is observed to determine the sealing performance of the device.

[0080] Pressurization: the adapter frame 601 continues to approach the measuring cylinder 3, thereby driving the telescopic column 7 to continue to slide inward in the telescopic sleeve 8, in this process, only the pressurization spring 12 is compressed, and as the compression amount of the pressurization spring 12 increases, the penetration degree will gradually increase.

[0081] By detecting the spring force increase of the spring 11 and the pressurization spring 12, the penetration degree of the liquid to the test piece can be detected, which can effectively avoid the deformation of the device under pressure; and by arranging the spring 11 and the pressurization spring 12, the two stages of "sealing detection" and "formal pressurization test" which have different requirements for pressure can be intelligently separated, thereby achieving the three goals of safety verification, equipment protection and accurate pressure control; since the system pressure is smoothly transitioned from "low pressure" to "high pressure", instead of instantaneously jumping, the rigid impact is effectively avoided, the instantaneous stress borne by the first piston 9, the measuring cylinder 3 and the like is significantly reduced, thereby effectively avoiding the permanent deformation or damage of the device, and improving the service life and reliability of the equipment.

[0082] In another embodiment of the application, the fixed seat 2 is fixedly provided with a fixed sleeve 21 sleeved with the measuring cylinder 3; a plurality of groups of notches 2101 are equidistantly arranged on the circumference of the fixed sleeve 21; a baffle 2102 is fixedly arranged in the fixed sleeve 21; a second piston 23 is slidingly and sealingly arranged in the fixed sleeve 21; a sealing spring 22 is arranged in the fixed sleeve 21; the two ends of the sealing spring 22 are in abutment with the second piston 23 and the fixed sleeve 21 respectively; and a top rod 20 is fixedly arranged on the second piston 23.

[0083] In another embodiment of the application, the distance between the sealing gasket 201 and the receiving plate 13 is less than the distance between the top rod 20 and the receiving plate 13.

[0084] In use, in the initial state, the second piston 23 is completely coincided with the notches 2101, and one end of the second piston 23 is in abutment with the baffle 2102; at this time, the outlet end of the measuring cylinder 3 is blocked by the second piston 23, so as to facilitate the orderly progress of the detection process. Since the notches 2101 are distributed on the circumference of the fixed sleeve 21, the extrusion force of the detection liquid on the second piston 23 is perpendicular to the side wall of the second piston 23 during the detection process, so that the displacement of the second piston 23 is difficult during the detection process, thereby the sealing performance between the first piston 9 and the measuring cylinder 3 can be effectively detected.

[0085] During the sealing action, the test piece extrudes the sealing gasket 201, so that the test piece will be in contact with the ejector rod 20 after a certain deformation, and then the test piece continues to move to further compress the sealing gasket 201, thereby enhancing the sealing performance between them; and in this process, the test piece will extrude the ejector rod 20, thereby driving the second piston 23 to move towards the measuring cylinder 3 to compress the sealing spring 22; during the movement of the second piston 23, the through channel of the notch 2101 gradually increases, so that the detection liquid can smoothly contact the test piece, thereby detecting the anti-permeability performance.

[0086] In another embodiment of the present application, the side edges of the receiving plate 13 are fixedly provided with positioning wedges 1301.

[0087] In use, the positioning wedges 1301 are inclined on one side, and when the test piece is placed, the test piece can be guided to be coaxial with the measuring cylinder 3 by the inclined surface of the positioning wedges 1301, so that the test piece and the sealing gasket 201 are not misaligned, and the sealing gasket 201 is not unevenly stressed to cause liquid leakage.

[0088] In another embodiment of the present application, the measuring cylinder 3 is provided with a scale line 301.

[0089] In use, the scale line 301 can clearly observe the change of the water head of the detection liquid before and after detection, thereby facilitating the judgment of the anti-permeability performance of the test piece.

[0090] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0091] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A dam body concrete test piece strength detection device for water conservancy flood storage filling engineering, comprising a base (1); a support frame (101) and a plurality of groups of stand columns (102) are fixedly installed on the base (1); characterized in that It also includes a plurality of groups of measuring cylinders (3), which are fixedly connected between the support frame (101) and the fixed seat (2); and a sealing gasket (201) is fixedly installed on the fixed seat (2); a first piston (9) is slidably and sealingly installed in the measuring cylinder (3); A plurality of groups of receiving plates (13) are slidably embedded with the stand columns (102); A sealing member, comprising a connecting plate (1601) connected with the receiving plate (13), the sealing member can drive the receiving plate (13) to approach the sealing gasket (201) through the connecting plate (1601); It also includes a pressure member; provided on the support frame (101), comprising a link frame (601) slidably connected with the stand column (102), the link frame (601) can approach the measuring cylinder (3) to increase the water pressure in the measuring cylinder (3) by extruding the first piston (9); The pressure member further comprises a pressure motor (4) fixedly installed on the support frame (101), a pressure lead screw column (5) is fixedly installed on the output end of the pressure motor (4), and a first threaded sleeve (6) is threadedly connected on the pressure lead screw column (5); the first threaded sleeve (6) is fixedly connected with the link frame (601); The pressure member further comprises a telescopic sleeve (8) fixedly installed on the first piston (9); a telescopic column (7) slidably embedded with the telescopic sleeve (8) is fixedly installed on the link frame (601), and a partition plate (10) is slidably installed in the telescopic sleeve (8); a detection spring (11) and a pressure spring (12) are arranged in the telescopic sleeve (8); and the detection spring (11) and the pressure spring (12) are respectively arranged on both sides of the partition plate (10); wherein the two ends of the detection spring (11) respectively abut against the partition plate (10) and the telescopic column (7); the two ends of the pressure spring (12) respectively abut against the partition plate (10) and the telescopic sleeve (8); The elastic force of the detection spring (11) is always less than the elastic force of the pressure spring (12).

2. The dam concrete test piece strength detection device for a water conservancy flood storage filling project according to claim 1, characterized in that, The sealing member further comprises a sealing motor (14) fixedly installed on the support frame (101); a sealing lead screw column (15) is fixedly installed on the output end of the sealing motor (14); a second threaded sleeve (16) is threadedly connected on the sealing lead screw column (15); and the second threaded sleeve (16) is fixedly connected with the connecting plate (1601).

3. The device for detecting the strength of a dam concrete test piece of a water conservancy flood storage filling project according to claim 2, characterized in that, The sealing piece further comprises a buffer column (18) fixedly installed on the receiving plate (13); a buffer sleeve (17) slidably fitted with the buffer column (18) is fixedly installed on the connecting plate (1601); a buffer spring (19) is arranged in the buffer sleeve (17), and two ends of the buffer spring (19) respectively abut against the buffer column (18) and the buffer sleeve (17).

4. The dam concrete test piece strength detection device for a water conservancy flood storage filling project according to claim 1, characterized in that, The fixed seat (2) is fixedly installed with a fixed sleeve (21) sleeved with the measuring cylinder (3); a plurality of groups of notches (2101) are equidistantly formed in the circumferential direction of the fixed sleeve (21); a baffle (2102) is fixedly installed in the fixed sleeve (21); a second piston (23) is slidably and sealingly installed in the fixed sleeve (21); a sealing spring (22) is arranged in the fixed sleeve (21); two ends of the sealing spring (22) respectively abut against the second piston (23) and the fixed sleeve (21); and a top rod (20) is fixedly installed on the second piston (23).

5. The device for detecting the strength of a dam concrete test piece of a water conservancy flood storage filling project according to claim 4, characterized in that, The distance between the sealing gasket (201) and the receiving plate (13) is less than the distance between the top rod (20) and the receiving plate (13).

6. The dam concrete test strength detection device for water conservancy flood storage filling engineering according to claim 3, characterized in that, The side edges of the receiving plate (13) are each fixedly installed with a positioning wedge block (1301).

7. The device for detecting the strength of a dam concrete test piece of a water conservancy flood storage filling project according to claim 1, characterized in that, The measuring cylinder (3) is provided with scale lines (301).

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