Coagulation durability testing device

Abstract

The utility model provides a concrete durability testing device which comprises a working table, a placing table is fixedly installed on the upper surface of the working table, a protection device is arranged on the outer wall of the placing table, collecting grooves are formed in the positions, located on the two sides of the placing table, of the upper surface of the working table, a groove is formed in the placing table, and a placing plate is connected into the groove in an up-down sliding mode. A positioning block is fixedly installed on the upper surface of the placing plate, sliding grooves are formed in the front side wall and the rear side wall of the placing table, limiting grooves are formed in the two sides of the sliding grooves, supporting columns are fixedly installed on the portions, located on the two sides of the collecting groove, of the upper surface of the workbench, and a transverse plate is fixedly installed between the two supporting columns; pressing heads are fixedly installed at the output ends of the hydraulic push rods. By designing the protective device, the phenomenon that concrete splashes to hurt people due to pressure in the testing process can be reduced, meanwhile, crushed concrete can be collected in the collecting box through the matched use of the collecting groove and the cleaning brush, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a concrete durability testing device. Background Art

[0002] Concrete is a general term for engineering composite materials that are bonded together by cementitious materials. The term concrete usually refers to cement as the cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion and mixed to obtain cement concrete, also known as ordinary concrete. It is widely used in civil engineering. During the construction process of civil engineering, it is very necessary to test the durability of concrete.

[0003] Concrete is one of the commonly used materials in construction projects, but its durability is an important factor affecting the life of buildings. Therefore, it is very necessary to test the durability of concrete. At present, the testing methods for concrete durability include commonly used physical property testing, chemical property testing and non-destructive testing. Among them, physical property testing includes: compression strength testing and tensile strength testing, etc. Compression strength is one of the important physical performance indicators of concrete. The commonly used testing method is to use a press to test, but because concrete will splash when squeezed, it is easy to hurt people, and the heat dissipated by the crushed concrete is not easy to collect on the press.

[0004] Therefore, in response to the above problems, we propose a concrete durability testing device. Summary of the invention

[0005] The purpose of the utility model is to provide a concrete durability testing device to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete durability testing device, comprising a workbench, a placing table is fixedly installed on the upper surface of the workbench, a protective device is provided on the outer wall of the placing table, a collecting trough is provided on the upper surface of the workbench on both sides of the placing table, a groove is provided inside the placing table, a placing plate is connected to the inside of the groove for sliding up and down, a positioning block is fixedly installed on the upper surface of the placing plate, a slide groove is provided on the front and rear side walls of the placing table, and limiting grooves are provided on both sides of the slide groove, support columns are fixedly installed on the upper surface of the workbench on both sides of the collecting trough, a cross plate is fixedly installed between two groups of the support columns, a hydraulic push rod is fixedly installed on the bottom of the cross plate, and a pressure head is fixedly installed on the output end of the hydraulic push rod.

[0007] As a further description of the utility model: the protective device includes an outer protective cover that is slidably sleeved up and down on the placing table, the outer protective cover is tempered glass, two groups of top protective plates are arranged inside the outer protective cover, and a connecting shaft is rotatably connected between the top protective plate and the outer protective cover. A torsion spring is sleeved on the connecting shaft, and the two ends of the torsion spring are respectively fixedly connected to the top protective plate and the outer protective cover, and a semicircular hole is opened on the side where the two groups of top protective plates are close to each other, and the inner diameter size of the semicircular hole matches the outer diameter size of the pressure head.

[0008] As a further description of the utility model: two groups of limit blocks that can slide up and down inside the limit groove are fixedly installed on the inner wall of the outer protective cover away from the top protective plate, and a sliding block that can slide up and down inside the sliding groove is fixedly installed between the two groups of limit blocks, and a magnetic block is installed on the top of the sliding block.

[0009] As a further description of the present utility model: a pressure sensor is fixedly installed inside the groove, and the pressure sensor is located directly below the placement plate, and the positioning block and the pressure head are distributed up and down.

[0010] As a further description of the present utility model: the outer walls on both sides of the workbench are slidably connected with a collection box, the collection box is communicated with the collection trough, and the side wall of the collection box is fixedly installed with a first handle.

[0011] As a further description of the utility model: a placement groove is opened on the upper surface of the workbench at the front and rear sides of the collecting groove, a cleaning brush is placed inside the placement groove, the cleaning brush is composed of a brush handle and bristles, and a second handle is installed on the brush handle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model designs a protective device on a concrete durability testing device. When in use, the concrete to be tested is placed on a positioning block, and then the hydraulic push rod is started to drive the pressure head to move in the direction of the positioning block. After the pressure head is initially in contact with the concrete, the hydraulic push rod is stopped, and at this time, the outer protective cover can be pushed upward along the outer wall of the placing table. When the outer protective cover rises to a certain height, the top protective plate is not limited by the placing table, and is horizontally closed under the elastic force of the torsion spring to wrap the pressure head through the semicircular hole, thereby sealing the concrete on the positioning block, reducing the splashing and injuring phenomenon of concrete caused by pressure during the test, and at the same time, the crushed concrete can be collected in the collection box through the cooperation of the collection trough and the cleaning brush, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2This is a schematic diagram of the distribution structure of the protective device and the placement platform of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the protective device of the utility model;

[0017] Figure 4 This is a schematic diagram of the placement table and its component structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the top protection plate and its component structure of the utility model.

[0019] In the figure: 1. workbench; 2. placement table; 3. protective device; 301. outer protective cover; 302. top protective plate; 303. connecting shaft; 304. torsion spring; 305. semicircular hole; 306. limit block; 307. slider; 4. collecting trough; 5. groove; 6. placement plate; 7. positioning block; 8. slide groove; 9. limit groove; 10. support column; 11. cross plate; 12. hydraulic push rod; 13. pressure head; 14. collection box; 15. first handle; 16. placement trough; 17. cleaning brush. DETAILED DESCRIPTION

[0020] 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 without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a concrete durability testing device, comprising a workbench 1, a placing table 2 is fixedly installed on the upper surface of the workbench 1, a protective device 3 is arranged on the outer wall of the placing table 2, collecting grooves 4 are provided on the upper surface of the workbench 1 on both sides of the placing table 2, a groove 5 is provided inside the placing table 2, a placing plate 6 is connected to the placing plate 6 for sliding up and down inside the groove 5, a positioning block 7 is fixedly installed on the upper surface of the placing plate 6, a slide groove 8 is provided on the front and rear side walls of the placing table 2, and limiting grooves 9 are provided on both sides of the slide groove 8, support columns 10 are fixedly installed on the upper surface of the workbench 1 on both sides of the collecting groove 4, a cross plate 11 is fixedly installed between the two groups of support columns 10, a hydraulic push rod 12 is fixedly installed on the bottom of the cross plate 11, and a pressure head 13 is fixedly installed on the output end of the hydraulic push rod 12.

[0022] In this embodiment: the protective device 3 includes an outer protective cover 301 that is slidably mounted on the placement table 2, and the outer protective cover 301 is made of tempered glass. Two groups of top protective plates 302 are arranged inside the outer protective cover 301. A connecting shaft 303 is rotatably connected between the top protective plate 302 and the outer protective cover 301. A torsion spring 304 is sleeved on the connecting shaft 303, and the two ends of the torsion spring 304 are fixedly connected to the top protective plate 302 and the outer protective cover 301 respectively. A semicircular hole 305 is opened on the side where the two groups of top protective plates 302 are close to each other, and the inner diameter of the semicircular hole 305 matches the outer diameter of the pressure head 13.

[0023] During specific use: the outer protective cover 301 is pushed upward along the outer wall of the placement table 2. When the outer protective cover 301 rises to a certain height, the top protective plate 302 is not limited by the placement table 2. Under the elastic force of the torsion spring 304, it is horizontally closed to wrap the pressure head 13 through the semicircular hole 305, thereby sealing the concrete on the positioning block 7, reducing the splashing and injury caused by the pressure of the concrete during the test.

[0024] In this embodiment: two groups of limit blocks 306 that can slide up and down inside the limit groove 9 are fixedly installed on the inner wall of the outer protective cover 301 away from the top protective plate 302, and a sliding block 307 that can slide up and down inside the slide groove 8 is fixedly installed between the two groups of limit blocks 306, and a magnetic block is installed on the top of the sliding block 307.

[0025] During specific use, the limit block 306 can slide up and down inside the limit slot 9 to prevent the outer protective cover 301 from tilting when sliding up and down, and the magnetic block can fix the height of the outer protective cover 301 after sliding up.

[0026] In this embodiment, a pressure sensor is fixedly installed inside the groove 5 , and the pressure sensor is located directly below the placement plate 6 , and the positioning block 7 and the pressure head 13 are distributed up and down.

[0027] Specific use: The pressure sensor can detect the pressure during the concrete testing process and use the calculation formula to calculate the compression strength of the concrete.

[0028] In this embodiment, the outer walls on both sides of the workbench 1 are slidably connected with a collecting box 14 , the collecting box 14 is communicated with the collecting tank 4 , and a first handle 15 is fixedly installed on the side wall of the collecting box 14 .

[0029] When used specifically, the collecting box 14 can collect the crushed concrete falling into the collecting tank 4 .

[0030] In this embodiment, a placement groove 16 is provided on the upper surface of the workbench 1 at the front and rear sides of the collecting groove 4, and a cleaning brush 17 is placed inside the placement groove 16. The cleaning brush 17 consists of a brush handle and bristles, and a second handle is installed on the brush handle.

[0031] When used specifically, the cleaning brush 17 can clean the crushed concrete on the positioning block 7 and make it fall into the collecting tank 4 .

[0032] Working principle: When in use, the concrete to be tested is placed on the positioning block 7, and then the hydraulic push rod 12 is started to drive the pressure head 13 to move in the direction of the positioning block 7. After the pressure head 13 is initially in contact with the concrete, the hydraulic push rod 12 is stopped. At this time, the outer protective cover 301 can be pushed upward along the outer wall of the placement table 2. When the outer protective cover 301 rises to a certain height, the top protective plate 302 is not limited by the placement table 2. Under the elastic force of the torsion spring 304, it is horizontally closed to wrap the pressure head 13 through the semicircular hole 305, thereby sealing the concrete on the positioning block 7, reducing the splashing and injuring phenomenon of concrete caused by pressure during the test. At the same time, the crushed concrete can be collected in the collection box 14 through the collection trough 4 and the cleaning brush 17, which is convenient and quick.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete durability testing device, comprising a workbench (1), characterized in that: A placing platform (2) is fixedly mounted on the upper surface of the workbench (1), a protective device (3) is arranged on the outer wall of the placing platform (2), a collecting groove (4) is provided on the upper surface of the workbench (1) on both sides of the placing platform (2), a groove (5) is provided inside the placing platform (2), a placing plate (6) is slidably connected up and down inside the groove (5), a positioning block (7) is fixedly mounted on the upper surface of the placing plate (6), and sliding grooves (8) are provided on the front and rear side walls of the placing platform (2). Limiting grooves (9) are provided on both sides of the slide groove (8); support columns (10) are fixedly installed on the upper surface of the workbench (1) on both sides of the collecting groove (4); a transverse plate (11) is fixedly installed between two groups of the support columns (10); a hydraulic push rod (12) is fixedly installed at the bottom of the transverse plate (11); and a pressure head (13) is fixedly installed at the output end of the hydraulic push rod (12); the protective device (3) comprises an outer protective cover (301) which is slidably sleeved on the placing platform (2) up and down. ), the outer protective cover (301) is tempered glass, two groups of top protective plates (302) are arranged inside the outer protective cover (301), a connecting shaft (303) is rotatably connected between the top protective plate (302) and the outer protective cover (301), a torsion spring (304) is sleeved on the connecting shaft (303), and the two ends of the torsion spring (304) are respectively fixedly connected to the top protective plate (302) and the outer protective cover (301), and the two groups of top protective plates (302) are mutually A semicircular hole (305) is provided on the side close to the outer surface of the pressure head (13); the inner diameter of the semicircular hole (305) matches the outer diameter of the pressure head (13); two groups of limit blocks (306) that can slide up and down in the limit groove (9) are fixedly installed on the inner wall of the outer protective cover (301) away from the top protective plate (302); a sliding block (307) that can slide up and down in the slide groove (8) is fixedly installed between the two groups of limit blocks (306); a magnetic block is installed on the top of the sliding block (307).

2. A concrete durability testing device according to claim 1, characterized in that: A pressure sensor is fixedly installed inside the groove (5), and the pressure sensor is located directly below the placement plate (6), and the positioning block (7) and the pressure head (13) are distributed up and down.

3. A concrete durability testing device according to claim 1, characterized in that: The outer walls on both sides of the workbench (1) are slidably connected with a collection box (14), the collection box (14) is communicated with the collection tank (4), and a first handle (15) is fixedly installed on the side wall of the collection box (14).

4. A concrete durability testing device according to claim 1, characterized in that: The upper surface of the workbench (1) is provided with a placement groove (16) at the front and rear sides of the collecting groove (4), and a cleaning brush (17) is placed inside the placement groove (16). The cleaning brush (17) is composed of a brush handle and bristles, and a second handle is installed on the brush handle.

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