A civil engineering concrete strength detection device

Abstract

The utility model relates to concrete detection technical field, and disclose a kind of civil engineering concrete strength detection equipment, comprising: base, the side of base is provided with mounting bracket, the top of mounting bracket is provided with first hydraulic push rod;By setting limiting mechanism, it can be realized to double limit fixed of concrete under the action of limiting mechanism, in the process of placing concrete test block can drive connecting shell to move down, to drive adjusting plate synchronous move down and increase the volume of adjusting cavity inner wall space, and under the action of through -hole can form negative pressure by connecting cavity and diaphragm is adsorbed to the inside of connecting cavity, and the top of diaphragm is blocked by test block to form negative pressure interval for the adsorption fixation of test block, it is convenient for subsequent secondary fixation by limiting component, effectively improve the positioning effect to test block, reduce the situation due to test block position excursion influence detection result.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, specifically to a concrete strength testing device for civil engineering. Background Technology

[0002] Concrete is one of the most important civil engineering materials in modern times. It is an artificial stone material made by mixing cementitious materials, granular aggregates, water, and, when necessary, admixtures and additives in a certain proportion, uniformly stirring, compacting, and curing. Concrete is characterized by abundant and inexpensive raw materials and a simple production process, leading to its increasing use. Concrete also features high compressive strength, good durability, and a wide range of strength grades. Concrete needs to be made into test blocks to test its compressive performance.

[0003] A search revealed a Chinese patent that discloses a novel concrete strength testing device for civil engineering testing (publication number: CN221350943U). This patent incorporates protective components to block flying debris when concrete samples are crushed, thus preventing injury to testing personnel from the flying debris.

[0004] However, the limiting effect on concrete test blocks during use is poor, and the test results are easily affected by the displacement of the concrete test blocks during the testing process. Therefore, those skilled in the art have proposed a concrete strength testing device for civil engineering. Utility Model Content

[0005] The purpose of this invention is to provide a concrete strength testing device for civil engineering, which solves the problem that the existing testing devices in the background art have poor limiting effect on concrete test blocks.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A civil engineering concrete strength testing device, comprising:

[0008] The base has a mounting bracket on one side, a first hydraulic push rod on the top of the mounting bracket, the output shaft of the first hydraulic push rod passing through the mounting bracket and fixedly connected to a detection block, a working cavity located below the detection block on the top of the base, a collection cavity inside the base, through grooves on both sides of the inner wall of the collection cavity communicating with the outside, four connecting channels on the top of the through grooves communicating with the working cavity, a mounting block fixedly connected to the inner wall of the connecting channel, and evenly distributed filter holes on the surface of the mounting block. A controller is provided on the surface of the base.

[0009] A limiting mechanism is provided inside the working cavity and is used to clamp and limit the concrete test block.

[0010] The limiting mechanism includes an adjustment cavity inside the base. An adjustment plate is slidably connected to the inner wall of the adjustment cavity. A connecting pipe is fixedly connected to the top of the adjustment plate. The upper end of the connecting pipe passes through the adjustment cavity and is fixedly connected to a connecting shell that is slidably connected to the inner wall of the working cavity and extends into the working cavity. Two limiting components are symmetrically distributed inside the working cavity.

[0011] Preferably, one of the channels has two symmetrically distributed filter screens fixedly connected inside, a fan is provided between the two filter screens, and a baffle for blocking the other channel is detachably provided on one side of the base.

[0012] Preferably, the top of the connecting shell has a connecting cavity, and a diaphragm for shielding the connecting cavity is fixedly connected to the top of the connecting shell. The upper end of the connecting tube is connected to the connecting cavity, and the lower end of the surface of the connecting tube has a through hole connected to the adjustment cavity.

[0013] Preferably, a first spring is fixedly connected to the bottom of the adjusting plate, and the other end of the first spring is fixedly connected to the inner bottom wall of the adjusting cavity.

[0014] Preferably, the limiting component includes a second hydraulic push rod fixedly connected to the inner wall of the base. The output shaft of the second hydraulic push rod passes through the base and is fixedly connected to a mounting plate. A limiting plate is provided on the other side of the mounting plate. Two symmetrically distributed sliding rods are fixedly connected to the side of the limiting plate near the mounting plate. The other end of the sliding rod passes through the limiting plate and is fixedly connected to an enlarged block. The diameter of the sliding rod is smaller than the diameter of the enlarged block.

[0015] Preferably, a second spring is sleeved on the surface of the slide rod, one end of the second spring is fixedly connected to the surface of the limiting plate, and the other end of the second spring is fixedly connected to the surface of the mounting plate.

[0016] Preferably, a pressure sensor is fixedly connected to the side of the mounting plate near the limiting plate, and a buffer block is provided on the surface of the pressure sensor.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0018] 1. By setting a limiting mechanism, the concrete can be double-limited and fixed under the action of the limiting mechanism. During the placement of the concrete test block, the connecting shell can be moved down, thereby moving the adjusting plate down synchronously to increase the volume of the space between the adjusting cavity and the inner wall. Under the action of the through hole, a negative pressure can be formed through the connecting cavity to adsorb the diaphragm into the interior of the connecting cavity. The upper part of the diaphragm is blocked by the test block, thus forming a negative pressure zone for adsorbing and fixing the test block. This facilitates the secondary fixing of the test block by the limiting component, effectively improving the positioning effect of the test block and reducing the impact of test block position displacement on the test results.

[0019] 2. By setting a limiting component, a first hydraulic push rod, and a limiting block, the device can prevent damage to the test block due to excessive compression under the action of the limiting component. At the same time, the first hydraulic push rod and the detection block can limit the test block from top to bottom, and the limiting component can simultaneously perform compression tests on both sides of the test block, effectively improving the testing range of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a partial cross-sectional schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram showing the connection between the limiting mechanism and the base of this utility model;

[0023] Figure 4 for Figure 3 Enlarged view of A in the middle;

[0024] Figure 5 This is a schematic diagram of the limiting component of this utility model.

[0025] The components are as follows: 1. Base; 101. Working chamber; 102. Baffle; 103. Controller; 104. Filter screen; 105. Fan; 106. Connecting channel; 107. Mounting block; 108. Through groove; 2. Mounting bracket; 201. First hydraulic push rod; 3. Limiting mechanism; 301. First spring; 302. Connecting pipe; 303. Connecting shell; 304. Diaphragm; 305. Adjusting plate; 306. Through hole; 31. Limiting assembly; 3101. Limiting plate; 3102. Slide rod; 3103. Mounting plate; 3104. Buffer block; 3105. Pressure sensor; 3106. Second hydraulic push rod; 3107. Second spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 A civil engineering concrete strength testing device, comprising:

[0028] A base 1 has a mounting bracket 2 on one side. A first hydraulic push rod 201 is mounted on the top of the mounting bracket 2. The output shaft of the first hydraulic push rod 201 passes through the mounting bracket 2 and is fixedly connected to a detection block. A working cavity 101 located below the detection block is opened on the top of the base 1. A collection cavity is opened inside the base 1. Both sides of the inner wall of the collection cavity are provided with through grooves 108 that communicate with the outside. Four connecting channels 106 are opened on the top of the through grooves 108 and communicate with the working cavity 101. A mounting block 107 is fixedly connected to the inner wall of the connecting channel 106. The surface of the mounting block 107 is provided with evenly distributed filter holes. A controller 103 is provided on the surface of the base 1.

[0029] The limiting mechanism 3 is located inside the working cavity 101 and is used to clamp and limit the concrete test block.

[0030] The limiting mechanism 3 includes an adjustment cavity opened inside the base 1. An adjustment plate 305 is slidably connected to the inner wall of the adjustment cavity. A connecting pipe 302 is fixedly connected to the top of the adjustment plate 305. The upper end of the connecting pipe 302 passes through the adjustment cavity and is fixedly connected to a connecting shell 303 that is slidably connected to the inner wall of the working cavity 101 and extends into the working cavity 101. Two limiting components 31 are provided inside the working cavity 101 and are symmetrically distributed.

[0031] The concrete test block to be tested is placed inside the working chamber 101 and clamped and limited by the limiting mechanism 3. The controller 103 starts the first hydraulic push rod 201 to move down and drive the test block to apply pressure to the concrete for testing. The concrete fragments generated during the test can fall into the working chamber 101. At the same time, the setting of the working chamber 101 can limit the range of debris splashing, which facilitates the subsequent cleaning of debris after the test is completed.

[0032] Please see Figure 1-5 One of the channels 108 has two symmetrically distributed filters 104 fixedly connected inside, and a fan 105 is provided between the two filters 104. A baffle 102 for blocking the other channel 108 is detachably provided on one side of the base 1.

[0033] The top of the connecting shell 303 has a connecting cavity, and a diaphragm 304 for blocking the connecting cavity is fixedly connected to the top of the connecting shell 303. The upper end of the connecting tube 302 is connected to the connecting cavity, and the lower end of the surface of the connecting tube 302 has a through hole 306 that is connected to the adjustment cavity.

[0034] A first spring 301 is fixedly connected to the bottom of the adjusting plate 305, and the other end of the first spring 301 is fixedly connected to the inner bottom wall of the adjusting cavity.

[0035] During the process of placing the concrete test block inside the working chamber 101, the weight of the concrete test block can compress the diaphragm 304 and push the connecting shell 303 and the connecting pipe 302 to move down synchronously. During this process, the first spring 301 can be compressed and the adjusting plate 305 can be driven to slide along the inside of the adjusting chamber. During this process, the space volume formed between the top of the adjusting plate 305 and the inner wall of the adjusting chamber increases, and under the action of the through hole 306, a negative pressure can be formed through the connecting chamber to adsorb the diaphragm 304 into the inside of the connecting chamber. The top of the diaphragm 304 is blocked by the test block, thus forming a negative pressure zone for adsorbing and fixing the test block, which is convenient for subsequent secondary fixing by the limiting component 31.

[0036] By starting the fan 105, the debris inside the working chamber 101 can be driven through the filter holes by airflow and stored inside the collection chamber. The filter screen 104 can prevent the debris from being directly discharged into the outside. The staff can clean the debris collected inside the collection chamber periodically by removing the baffle 102.

[0037] Please see Figure 1-5 The limiting component 31 includes a second hydraulic push rod 3106 fixedly connected to the inner wall of the base 1. The output shaft of the second hydraulic push rod 3106 passes through the base 1 and is fixedly connected to a mounting plate 3103. A limiting plate 3101 is provided on the other side of the mounting plate 3103. Two symmetrically distributed sliding rods 3102 are fixedly connected to the side of the limiting plate 3101 near the mounting plate 3103. The other end of the sliding rod 3102 passes through the limiting plate 3101 and is fixedly connected to an enlarged block. The diameter of the sliding rod 3102 is smaller than the diameter of the enlarged block.

[0038] A second spring 3107 is fitted onto the surface of the slide bar 3102. One end of the second spring 3107 is fixedly connected to the surface of the limiting plate 3101, and the other end of the second spring 3107 is fixedly connected to the surface of the mounting plate 3103.

[0039] A pressure sensor 3105 is fixedly connected to the side of the mounting plate 3103 near the limiting plate 3101, and a buffer block 3104 is provided on the surface of the pressure sensor 3105.

[0040] By activating the second hydraulic push rod 3106, the mounting plate 3103 connected to it can be moved towards the test block. During this process, the limiting plate 3101 can be moved synchronously until the limiting plates 3101 on both sides contact the surface of the test block. Under the obstruction of the test block, as the second hydraulic push rod 3106 continues to push, the limiting plate 3101 can be moved towards the mounting plate 3103. During this process, the sliding rod 3102 gradually passes through the mounting plate 3103, while the limiting plate 3101 squeezes the second spring 3107 until the limiting plate 3101 applies pressure to the buffer block 3104. When the pressure sensor 3105 detects that the pressure is greater than the preset value, it can transmit a signal to the controller 103, thereby the controller 103 closes the corresponding second hydraulic push rod 3106, which can prevent excessive compression from damaging the test block.

[0041] Another testing method: The first hydraulic push rod 201 and the testing block can limit the test block from top to bottom, and then the limiting component 31 can simultaneously perform a compression test on both sides of the test block, which effectively improves the testing range of the device.

[0042] Working principle: The concrete test block to be tested is placed inside the working chamber 101 and clamped and limited by the limiting mechanism 3. The controller 103 starts the first hydraulic push rod 201 to move down and drive the test block to apply pressure to the concrete for testing. During the test, the concrete fragments generated can fall into the working chamber 101. At the same time, the setting of the working chamber 101 can limit the range of debris splashing, which facilitates the subsequent cleaning of debris after the test is completed.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete strength testing device for civil engineering, characterized in that, include: A base (1) is provided with a mounting bracket (2) on one side. A first hydraulic push rod (201) is provided on the top of the mounting bracket (2). The output shaft of the first hydraulic push rod (201) passes through the mounting bracket (2) and is fixedly connected to a detection block. A working cavity (101) located below the detection block is opened on the top of the base (1). A collection cavity is opened inside the base (1). A through groove (108) communicating with the outside is opened on both sides of the inner wall of the collection cavity. A number of four connecting channels (106) communicating with the working cavity (101) are opened on the top of the through groove (108). A mounting block (107) is fixedly connected to the inner wall of the connecting channel (106). A filter hole is evenly distributed on the surface of the mounting block (107). A controller (103) is provided on the surface of the base (1). The limiting mechanism (3) is located inside the working cavity (101) and is used to clamp and limit the concrete test block. The limiting mechanism (3) includes an adjustment cavity opened inside the base (1). An adjustment plate (305) is slidably connected to the inner wall of the adjustment cavity. A connecting pipe (302) is fixedly connected to the top of the adjustment plate (305). The upper end of the connecting pipe (302) passes through the adjustment cavity and is fixedly connected to a connecting shell (303) that is slidably connected to the inner wall of the working cavity (101) and extends into the working cavity (101). Two limiting components (31) are provided inside the working cavity (101) and are symmetrically distributed.

2. The civil engineering concrete strength testing equipment according to claim 1, characterized in that: Two symmetrically distributed filter screens are fixedly connected inside one of the channels (108), and a fan (105) is provided between the two filter screens (104). A baffle (102) for blocking the other channel (108) is detachably provided on one side of the base (1).

3. The civil engineering concrete strength testing equipment according to claim 2, characterized in that: The top of the connecting shell (303) is provided with a connecting cavity, and a diaphragm (304) for shielding the connecting cavity is fixedly connected to the top of the connecting shell (303). The upper end of the connecting tube (302) is connected to the connecting cavity, and the lower end of the surface of the connecting tube (302) is provided with a through hole (306) connected to the adjustment cavity.

4. The civil engineering concrete strength testing equipment according to claim 3, characterized in that: The bottom of the adjusting plate (305) is fixedly connected to a first spring (301), and the other end of the first spring (301) is fixedly connected to the inner bottom wall of the adjusting cavity.

5. The civil engineering concrete strength testing equipment according to claim 1, characterized in that: The limiting component (31) includes a second hydraulic push rod (3106) fixedly connected to the inner wall of the base (1). The output shaft of the second hydraulic push rod (3106) passes through the base (1) and is fixedly connected to a mounting plate (3103). A limiting plate (3101) is provided on the other side of the mounting plate (3103). Two symmetrically distributed slide rods (3102) are fixedly connected to the side of the limiting plate (3101) near the mounting plate (3103). The other end of the slide rod (3102) passes through the limiting plate (3101) and is fixedly connected to an enlarged block. The diameter of the slide rod (3102) is smaller than the diameter of the enlarged block.

6. The civil engineering concrete strength testing equipment according to claim 5, characterized in that: The surface of the slide bar (3102) is fitted with a second spring (3107). One end of the second spring (3107) is fixedly connected to the surface of the limiting plate (3101), and the other end of the second spring (3107) is fixedly connected to the surface of the mounting plate (3103).

7. A civil engineering concrete strength testing device according to claim 6, characterized in that: A pressure sensor (3105) is fixedly connected to the side of the mounting plate (3103) near the limiting plate (3101), and a buffer block (3104) is provided on the surface of the pressure sensor (3105).

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