Multifunctional detachable slip casting and direct shear test mold

Abstract

The utility model relates to a multifunctional detachable slip casting and direct shear test mould which comprises a model chamber which is divided into a detachable mould upper box and a mould lower box; the top plate is arranged at the top of the model chamber, seals the top of the model chamber and is provided with a grouting hole and an on-plate exhaust hole; the bottom plate is arranged at the bottom of the model chamber and seals the bottom of the model chamber; the pull rod connects the top plate and the bottom plate; the base is provided with a base groove; the size of the cross section of the loading plate is smaller than or equal to that of an inner hole of the upper die box, and the loading plate can be embedded into the upper die box; a weight; one end of the jack abuts against the side wall of the upper mold box, and the other end of the jack abuts against the inner wall of the base; the displacement sensor is arranged on the opposite side of the jack; the hydraulic sensor is arranged on the jack; and the acquisition instrument is in communication connection with the hydraulic sensor and the displacement sensor. According to the utility model, repeated test use can be realized, and the problem of rapid acquisition of shear strength parameters of a material test piece on an engineering site is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a multifunctional detachable grouting molding and direct shear test mold. Background Art

[0002] With economic development and technological progress, modern structures are gradually developing towards high-rise, large-scale, deep and special functions. The requirements for raw material types and performance are becoming more and more diversified, and more and more attention is paid to the research on material specimens.

[0003] Nowadays, most of the material specimens prepared are plastic molds and disposable plate-made concrete cube specimen molds, which have the disadvantages of difficult demoulding, non-reusability, and single functionality. Although the single-function manufacturing device can meet the specimen preparation work, it cannot achieve the acquisition of the shear strength parameters of the material specimens. It is often necessary to send the prepared material specimens to the laboratory to obtain the shear parameters using specific direct shear equipment, which will cause a lot of time waste on the construction site.

[0004] Therefore, there is an urgent need for a multifunctional detachable grouting molding and direct shear test mold to solve the problem that the existing material specimen molds cannot be reused for different material experiments and to solve the problem of quickly obtaining the shear strength parameters of material specimens on the engineering site. Utility Model Content

[0005] The utility model aims to solve the above problems existing in the prior art and provides a multifunctional detachable grouting molding and direct shear test mold.

[0006] In order to achieve the above application purpose, the utility model adopts the following technical solutions: The multifunctional detachable grouting molding and direct shear test mold includes:

[0007] The model chamber is divided into a detachable upper mold box and a lower mold box, and both the upper mold box and the lower mold box are hollow structures;

[0008] The top plate is arranged on the top of the model room, closes the top of the model room, and is provided with grouting holes and exhaust holes on the plate;

[0009] A bottom plate is arranged at the bottom of the model room to seal the bottom of the model room;

[0010] A tie rod connects the top plate and the bottom plate, and locks the top plate and the bottom plate by threaded fasteners to form a closed model chamber;

[0011] A base, provided with a base groove, for providing a test space and fixing the mold lower box;

[0012] The load plate has a cross-sectional size that is smaller than or equal to the inner hole size of the mold upper box and can be embedded in the mold upper box;

[0013] Weights, which are placed on top of the load plate to provide vertical load;

[0014] A jack, one end of which abuts against the side wall of the upper box of the mold, and the other end abuts against the inner wall of the base, for applying a horizontal load;

[0015] The displacement sensor is located on the opposite side of the jack and is used to monitor the horizontal displacement of the mold upper box;

[0016] A hydraulic sensor is provided on the jack and is used to measure the pressure of the jack;

[0017] The data collector is respectively connected to the hydraulic pressure sensor and the displacement sensor for real-time collection of horizontal load data and horizontal displacement data.

[0018] Furthermore, the grouting holes and the exhaust holes on the plate are both provided with threads so as to be closed by threaded fasteners.

[0019] With this arrangement, the threaded fastener can effectively seal the grouting hole and the vent hole on the plate to prevent fluid leakage. By providing threads on the grouting hole and the vent hole on the plate and using threaded fasteners to seal them, effective sealing, improved safety, increased controllability and detachability can be achieved.

[0020] Furthermore, a vertical buckle is provided between the mold lower box and the mold upper box, and the vertical buckle is used to buckle and connect the mold lower box and the mold upper box.

[0021] With this setup, the vertical buckle provides accurate positioning and a firm connection between the mold lower box and the mold upper box, thereby improving production efficiency and making mold maintenance and replacement more convenient. Product quality, production efficiency and production flexibility can be improved.

[0022] Furthermore, the upper mold box is provided with a plurality of locking top holes corresponding one to one with the pull rods, and the lower mold box is provided with a corresponding number of locking bottom holes.

[0023] This setting, through the use of locking top holes and locking bottom holes, can achieve accurate positioning, stable locking force, improve production efficiency, and facilitate maintenance and replacement of molds. It helps to improve product quality, production efficiency and production flexibility.

[0024] Furthermore, the jack is provided with a hydraulic pump, through which the output pressure of the jack is controlled, and a hydraulic sensor is provided on the hydraulic pump.

[0025] This setting, by providing a hydraulic pump on the jack and a hydraulic sensor on the hydraulic pump, can achieve precise control of pressure, improve safety, increase adjustment capacity, and monitor and diagnose the working status of the hydraulic system.

[0026] Furthermore, there are four tie rods, which are respectively arranged at the four corners of the model chamber. In this way, a more stable support can be achieved, the load can be evenly distributed, the transmission of balanced force can be increased, and the stability and firmness of the mold can be increased.

[0027] Furthermore, a reaction baffle is provided on the base, and a side of the reaction baffle facing the model chamber is in contact with the jack.

[0028] This arrangement allows for easy installation of the jack without the need to install additional parts as reaction baffles.

[0029] Furthermore, a plane for placing the displacement sensor is provided on the base.

[0030] This arrangement can facilitate installation of the displacement sensor and improve the detection accuracy of the displacement sensor.

[0031] Furthermore, the data collector is wirelessly connected to the hydraulic sensor and the displacement sensor respectively.

[0032] Furthermore, the collector is connected to the hydraulic sensor and the displacement sensor respectively through cables.

[0033] The beneficial effects of the utility model are as follows:

[0034] 1. Compared with the prior art, the utility model can meet the needs of making material specimens in a high-pressure sealed environment when the top plate is used to cover the model room; when the top plate is removed, it can meet the needs of making material specimens that do not require high pressure and external loads; when the lower box of the mold is embedded in the groove of the base and a load is applied to the upper box of the mold through a jack, it can meet the needs of quickly obtaining the shear strength parameters of the material specimens on site.

[0035] 2. Compared with the prior art, the mold of the utility model can realize a variety of experiments, which effectively solves the problem that the existing material specimen mold cannot be reused for different material experiments, and the problem that the existing material specimen mold cannot directly and quickly obtain the shear strength parameters of the material specimen.

[0036] 3. Compared with the prior art, the utility model can enhance practicality and versatility: the mold integrates the grouting molding and direct shear test functions in one, realizing a seamless connection from material specimen production to shear strength testing, greatly improving work efficiency, reducing the steps of transferring specimens to the laboratory in the traditional process, and saving valuable time and resources.

[0037] 4. Compared with the prior art, the utility model can optimize reuse and cost-effectiveness: the detachable design and hollow structure of the mold make it not only suitable for testing a variety of materials, but also easy to clean and reuse, significantly reducing the cost of a single test and improving economic efficiency and environmental protection. The design of the vertical buckle and locking top and bottom holes enhances the stability and durability of the mold and extends its service life.

[0038] 5. Compared with the prior art, the utility model can improve the test accuracy and safety: the threaded fasteners ensure the sealing during the grouting process, avoid fluid leakage, and improve the quality of specimen molding. The integration of the hydraulic pump and the hydraulic sensor realizes the precise control of the applied horizontal load, and improves the accuracy and reliability of the test results. At the same time, this design also enhances the safety of the operation process and reduces the risk caused by equipment failure.

[0039] 6. Compared with the prior art, the utility model can enhance the convenience and flexibility of operation: the design of the pull rods distributed at the four corners and the setting of the reaction baffle ensure the stability of the mold during loading, making the operation easier and safer. The dedicated plane of the displacement sensor and the flexible wireless / wired connection method simplify the installation and data collection process of the sensor, and improve the convenience and flexibility of on-site operation.

[0040] 7. Compared with the prior art, the utility model can promote real-time monitoring and analysis of data: efficient communication between the data collector and the sensor (whether wireless or wired) enables real-time monitoring of horizontal load and displacement data during the test, facilitating instant adjustment of test conditions or rapid analysis of test results, accelerating the process of scientific research and engineering decision-making. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a structural schematic diagram of the first application mode of the material test piece mold provided by the embodiment of the utility model;

[0042] Figure 2 This is a structural schematic diagram of a second application mode of a material test piece mold provided by an embodiment of the utility model;

[0043] Figure 3 It is a schematic diagram of the mold direct shear test structure provided by an embodiment of the utility model;

[0044] Figure 4 yes Figure 1 Schematic diagram of the top plate structure;

[0045] Figure 5 yes Figure 1 Schematic diagram of the structure of the mold lower box and the mold upper box;

[0046] Figure 6 yes Figure 1 Schematic diagram of the bottom plate structure;

[0047] Figure 7 yes Figure 3 The base section of

[0048] Figure 8 yes Figure 3 Top view of the base.

[0049] In the figure, 01, bottom plate; 02, locking bottom hole; 11, pull rod; 12, mold lower box; 13, mold upper box; 14, vertical buckle; 21, top plate; 22, nut; 23, screw; 24, locking top hole; 25, grouting hole; 26, exhaust hole on the plate; 30, base; 31, load plate; 32, weight; 33, jack; 34, hydraulic pump; 35, hydraulic sensor; 36, displacement sensor; 37, data collector; 38, data wire; 39, hydraulic pipe; 40, base groove. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0051] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0052] like Figure 1-8 As shown, the multifunctional detachable grouting molding and direct shear test mold includes:

[0053] The model chamber is divided into a detachable upper mold box 13 and a lower mold box 12, and both the upper mold box 13 and the lower mold box 12 are hollow structures;

[0054] In this embodiment, a vertical buckle 14 is provided between the mold lower box 12 and the mold upper box 13, and the vertical buckle 14 is used to buckle and connect the mold lower box 12 and the mold upper box 13, and the mold upper box 13 and the mold lower box 12 are connected up and down to form a model chamber. Of course, other detachable structures, such as latches, etc., can also be used.

[0055] Preferably, the mold upper box 13 is provided with 4 locking top holes 24 corresponding to the tie rods 11, and the mold lower box 12 is provided with a corresponding number of locking bottom holes 02. There are 4 tie rods 11, which are respectively arranged at the four corners of the model room. The 4 tie rods 11 pass through 4 groups of opposite locking top holes 24 and locking bottom holes 02, respectively, to be threadedly connected with a plurality of nuts 22, and the tightening of the plurality of nuts 22 is used to press the top plate 21 against the bottom plate 01.

[0056] A top plate 21 is provided on the top of the model chamber to seal the top of the model chamber and is provided with a grouting hole 25 and an exhaust hole 26 on the plate;

[0057] Bottom plate 01, arranged at the bottom of the model room, closing the bottom of the model room;

[0058] The pull rod 11 connects the top plate 21 and the bottom plate 01, and locks the top plate 21 and the bottom plate 01 by means of threaded fasteners to form a closed model room;

[0059] The base 30 is provided with a base groove 40 for providing a test space and fixing the mold lower box 12;

[0060] In this embodiment, a reaction baffle is provided on the base, and a side of the reaction baffle facing the model chamber is in contact with the jack 33 . A plane for placing the displacement sensor 36 is provided on the base 30 .

[0061] The load plate 31 has a cross-sectional dimension that is smaller than or equal to the inner hole dimension of the mold upper box 13 and can be embedded in the mold upper box 13;

[0062] A weight 32 is used to be placed on the top of the load plate 31 to provide a vertical load;

[0063] A jack 33, one end of which abuts against the side wall of the mold upper box 13, and the other end abuts against the inner wall of the base 30, for applying a horizontal load;

[0064] In this embodiment, a hydraulic pump 34 is provided on the jack 33 , and the output pressure of the jack 33 is controlled by the hydraulic pump 34 . A hydraulic sensor 35 is provided on the hydraulic pump 34 .

[0065] The displacement sensor 36 is provided on the side opposite to the jack 33 and is used to monitor the horizontal displacement of the mold upper box 13;

[0066] A hydraulic pressure sensor 35 is provided on the jack 33 and is used to measure the pressure of the jack 33;

[0067] The data collector 37 is respectively connected to the hydraulic pressure sensor 35 and the displacement sensor 36 for real-time collection of horizontal load data and horizontal displacement data.

[0068] In this embodiment, the data collector 37 is connected to the hydraulic pressure sensor 35 and the displacement sensor 36 via wireless connection or the data collector 37 is connected to the hydraulic pressure sensor 35 and the displacement sensor 36 via data wires 38. Different connection methods are selected for different test environments.

[0069] Preferably, if Figure 1 , Figures 4 to 6 As shown, when making material specimens for a high-pressure sealed environment, such as ordinary polymer specimens, the flat surface of the top plate 21 can be used to cover the model chamber, and then a plurality of tie rods 11 are used to pass through a plurality of relative locking top holes 24 and locking bottom holes 02, and the plurality of tie rods 11 are threadedly connected to a plurality of nuts 22, respectively. After the plurality of nuts 22 are tightened, the sealed connection between the top plate 21, the mold upper box 13, the mold lower box 12 and the bottom plate 01 can be ensured.

[0070] like Figure 1 , Figure 4 As shown, the grouting holes 25 and the exhaust holes 26 on the top plate 21 are used for grouting, exhausting and other operations during the process of making grouting material specimens; the grouting holes 25 and the exhaust holes 26 on the top plate are both provided with threads on the hole walls, and are tightened with screws 23 of corresponding sizes after grouting.

[0071] like Figure 2 , Figure 5 ,as well as Figure 6 As shown, when making a concrete or similar material specimen that does not require high pressure or external load, the top plate 21 can be removed and concrete or similar materials can be directly poured into the model room to complete the specimen making.

[0072] like Figures 1 to 6 As shown, when the material specimen is made, the vertical buckle 14, the pull rod 11, the nut 22, the top plate 21 and the bottom plate 01 can be removed, and then the mold lower box 12 is first embedded in the base groove 40 to be firmly fixed, and then the load plate 31 is embedded in the model chamber, and a weight 32 of corresponding weight is placed on the load plate 31. The load plate 31 directly contacts the specimen material in the model chamber, and the force is transmitted to the specimen material; finally, the displacement sensor 36 and the jack 33 are arranged, and the displacement sensor 36 and the hydraulic sensor 35 installed on the manual hydraulic pump 34 are connected to the data acquisition instrument 37 through the data wire 38. After the arrangement is completed, the direct shear test of the material specimen is started, and data is collected through the data acquisition instrument 37. The direct shear test of the specimen can be completed on-site using the specimen mold device, and the shear strength parameters of the specimen material can be quickly obtained on-site.

[0073] The parts not described in detail in the present invention are prior art, so the present invention does not describe them in detail.

[0074] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0075] Although this article uses more terms such as bottom plate 01, locking bottom hole 02, tie rod 11, mold lower box 12, mold upper box 13, vertical buckle 14, top plate 21, nut 22, screw 23, locking top hole 24, grouting hole 25, plate exhaust hole 26, base 30, load plate 31, weight 32, jack 33, hydraulic pump 34, hydraulic sensor 35, displacement sensor 36, collector 37, data wire 38, hydraulic pipe 39, base groove 40, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0076] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present utility model fall within the protection scope of the present utility model.

Claims

1. Multifunctional detachable grouting molding and direct shear test mold, characterized in that: include: The model chamber is divided into a detachable upper mold box and a lower mold box, and both the upper mold box and the lower mold box are hollow structures; A top plate is arranged on the top of the model chamber, closes the top of the model chamber, and is provided with grouting holes and exhaust holes on the plate; A bottom plate, disposed at the bottom of the model chamber, to seal the bottom of the model chamber; A tie rod, connecting the top plate and the bottom plate, and locking the top plate and the bottom plate by threaded fasteners to form a closed model chamber; A base, provided with a base groove, for providing a test space and fixing the mold lower box; A load plate, the cross-sectional dimension of which is smaller than or equal to the inner hole dimension of the mold upper box, and can be embedded in the mold upper box; A weight, for being placed on top of the load plate to provide a vertical load; A jack, one end of which abuts against the side wall of the mold upper box and the other end of which abuts against the inner wall of the base, for applying a horizontal load; A displacement sensor is provided on the side opposite to the jack and is used to monitor the horizontal displacement of the mold upper box; A hydraulic sensor, provided on the jack, for measuring the pressure of the jack; The collector is respectively connected to the hydraulic sensor and the displacement sensor for collecting horizontal load data and horizontal displacement data in real time.

2. The multifunctional detachable grouting molding and direct shear test mold according to claim 1 is characterized in that: The grouting hole and the exhaust hole on the plate are both provided with threads so as to be closed by threaded fasteners.

3. The multifunctional detachable grouting molding and direct shear test mold according to claim 1, characterized in that: A vertical buckle is provided between the mold lower box and the mold upper box, and the vertical buckle is used to buckle and connect the mold lower box and the mold upper box.

4. The multifunctional detachable grouting molding and direct shear test mold according to claim 1, characterized in that: The upper mold box is provided with a plurality of locking top holes corresponding to the pull rods one by one, and the lower mold box is provided with a corresponding number of locking bottom holes.

5. The multifunctional detachable grouting molding and direct shear test mold according to claim 1, characterized in that: The jack is provided with a hydraulic pump, through which the output pressure of the jack is controlled, and the hydraulic sensor is arranged on the hydraulic pump.

6. The multifunctional detachable grouting molding and direct shear test mold according to claim 1, characterized in that: There are four pull rods, which are respectively arranged at the four corners of the model room.

7. The multifunctional detachable grouting molding and direct shear test mold according to any one of claims 1 to 6, characterized in that: A reaction baffle is provided on the base, and the reaction baffle is in contact with the jack on a side facing the model chamber.

8. The multifunctional detachable grouting molding and direct shear test mold according to any one of claims 1 to 6, characterized in that: The base is provided with a plane for placing the displacement sensor.

9. The multifunctional detachable grouting molding and direct shear test mold according to any one of claims 1 to 6, characterized in that: The collector is wirelessly connected to the hydraulic sensor and the displacement sensor respectively to monitor and collect test data in real time.

10. The multifunctional detachable grouting molding and direct shear test mold according to any one of claims 1 to 6, characterized in that: The collector is connected to the hydraulic sensor and the displacement sensor respectively through cables to monitor and collect test data in real time.

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