Pressure testing machine

Abstract

The utility model discloses a compression testing machine and belongs to the technical field of concrete testing equipment. Comprising a machine frame and a machine cabinet arranged on one side of the machine frame, the machine frame comprises four stand columns, a top base and a bottom base, the top base and the bottom base are arranged at the upper ends and the lower ends of the stand columns respectively, an upper pressing piece is arranged on the top base, a lower pressing piece is arranged on the bottom base, the upper pressing piece comprises an upper pressing plate, and the lower pressing piece comprises a lower supporting plate; during testing, a concrete sample is placed on the lower supporting plate, the upper pressing plate and the lower supporting plate are controlled to be close to each other to extrude the concrete sample for pressure testing, and the device further comprises a storage frame which is arranged on the lower supporting plate and can slide front and back along the lower supporting plate and be locked. The device has a broken stone splash-proof effect, when concrete is extruded, workers are prevented from being hurt, the protection effect is improved, after a test is finished, the difficulty of cleaning broken stones is greatly reduced, the cleaning efficiency is improved, and the labor burden is reduced.

Description

Technical Field

[0001] The utility model relates to a pressure testing machine, belonging to the technical field of concrete testing equipment. Background Technique

[0002] Concrete refers to the general term of engineering composite materials in which aggregate is cemented into a whole by cementitious materials; generally, the term concrete refers to cement concrete obtained by mixing cement as the cementitious material, sand and stone as the aggregate, and water in a certain proportion; after the concrete solidifies, its quality needs to be detected, so it is necessary to sample and conduct pressure testing on the concrete, and thus a pressure testing machine is required for the test. The pressure testing machine is one of the essential devices in the work of testing the relevant properties of concrete. Generally, the material sample is placed on the top of the test bench, and then the sample is extruded at a certain speed to measure the stress change on the sample until the sample is damaged, so as to assist the staff in measuring the relevant properties of the concrete.

[0003] Among them, the DYE-2000 electro-hydraulic pressure testing machine is driven by a hydraulic power source and uses an intelligent measurement and control instrument to collect and process test data. It consists of four parts: a test host, an oil source (hydraulic power source), a measurement and control system, and test instruments. The maximum test force is 2000 kN, and the accuracy level of the testing machine is better than grade 1. The DYE-2000 electro-hydraulic pressure testing machine can meet the national standard test requirements for materials such as bricks, concrete, and cement, with manual loading and digital display of the loading force value and the loading speed value. This testing machine has an integrated structure of the host and the oil source, is applicable to the compressive test of cement and concrete as well as the flexural test of concrete, and can meet the splitting tensile test of concrete with appropriate fixtures and measuring devices.

[0004] When the concrete sample is subjected to a pressure test, it will burst open when the concrete sample reaches its pressure limit value. In order to protect against the crushed stones splashing during extrusion, the existing DYE-2000 pressure testing machine generally sets a partition on its column at the position directly facing the extrusion of the concrete sample by the pressure testing machine, and the partition set on the front side can be opened and closed to place and take out the concrete sample. However, due to the large gap between the partition and the extrusion mechanism of the pressure testing machine, and there are relatively large openings communicating with the outside above and below the partition, the protective effect of the partition is not ideal; in addition, the existing DYE-2000 pressure testing machine also has the problems of inconvenient placement and removal of the concrete sample, time-consuming and laborious cleaning of the concrete sample scattered during extrusion, and it is difficult to clean it thoroughly. Summary of the Invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a pressure testing machine.

[0006] The technical solution adopted by the present utility model is as follows: A pressure testing machine is designed, which includes a frame and a cabinet disposed on one side of the frame. The frame includes four columns and a top seat and a bottom seat respectively disposed at the upper and lower ends of the columns. An upper pressing member is disposed on the top seat, and a lower pressing member is disposed on the bottom seat. The upper pressing member includes an upper pressing plate, and the lower pressing member includes a lower supporting plate. During the test, a concrete specimen is placed on the lower supporting plate, and the upper pressing plate and the lower supporting plate are controlled to approach each other to squeeze the concrete specimen for a pressure test. It further includes a storage frame, which is disposed on the lower supporting plate and can slide back and forth along the lower supporting plate and be locked. During the test, the concrete specimen is placed in the storage frame, the upper pressing plate and the lower supporting plate are controlled to approach each other, and the upper pressing plate extends into the storage frame and gradually squeezes the concrete specimen for a pressure test.

[0007] Further, the lower supporting plate is a rectangular plate. A bottom plate is disposed at the bottom of the storage frame. L-shaped plates are respectively disposed on the left and right sides of the lower surface of the bottom plate. A C-shaped slideway is formed between the L-shaped plates and the bottom plate of the storage frame. The left and right sides of the lower supporting plate are respectively clamped into the corresponding C-shaped slideways.

[0008] Further, a locking hole is disposed on the L-shaped plate on the left side of the storage frame. A nut tube is further disposed on the outer side of the L-shaped plate at the locking hole. A locking bolt is disposed at the nut tube and is threadedly connected thereto. By screwing in the locking bolt to abut against the lower supporting plate, the storage frame is locked; the length of the locking bolt is at least longer than the inner side of the left column of the frame.

[0009] Further, a limiting plate is disposed on the front side of the lower surface of the bottom plate of the storage frame.

[0010] Further, baffles are respectively disposed on the left and right sides and the rear side of the upper surface of the bottom plate. A door panel is hingedly disposed on the front side of the bottom plate. One side of the door panel is hinged, and the opposite side of the hinged side is locked through a quick locking structure.

[0011] Further, the quick locking structure includes a striker disposed on the door panel and an automatic locking device disposed on the baffle. The automatic locking device includes a lock body and a lock tongue that can slide up and down in the lock body. A slideway and a striker bayonet are disposed on the lock tongue. A positioning pin is disposed on the lock body and is inserted into the slideway. A lock port is disposed on the lock body, and the striker bayonet is disposed at the lock port. The striker bayonet includes an L-shaped lock track, and the upper side of the opening of the L-shaped lock track on the lock tongue is set as an arc structure.

[0012] Further, a guiding plate extends upward from the upper end of the baffle, and the guiding plate bends outward relative to the baffle.

[0013] Further, a plurality of rib plates are arranged in an array on the lower surface of the bottom plate.

[0014] Further, a handle is provided on the door panel or the limit plate, and the door panel is made of a transparent plastic door panel or a plurality of observation holes are opened on the door panel.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the setting of the placement frame, the concrete specimen is placed in the placement frame for a pressure test. During the test, the concrete specimen is placed in the placement frame, and the upper pressure plate and the lower support plate are controlled to approach each other. The upper pressure plate extends into the placement frame and gradually squeezes the concrete specimen for a pressure test, so that the concrete is in a relatively closed space. When the concrete sample reaches its pressure limit value and explodes, the placement frame can provide relatively comprehensive and effective protection for the crushed stones splashed by extrusion; in addition, the placement frame can also slide back and forth, which is convenient for pulling out the frame to take and place the concrete specimen, and is also convenient for cleaning the scattered concrete, improving the cleaning efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is an isometric view schematic diagram of the placement frame of the present utility model placed under the upper pressure plate.

[0019] Figure 2 For Figure 1 The partial enlarged schematic diagram of A in

[0020] Figure 3 It is an isometric view schematic diagram of the placement frame of the present utility model pulled out of the frame.

[0021] Figure 4 It is a front view schematic diagram of the upper pressure plate of the present utility model extending into the placement frame.

[0022] Figure 5 It is a schematic diagram of the lock tongue of the present utility model.

[0023] Figure 6 It is a schematic diagram of the placement frame of the present utility model.

[0024] In the figure: 1, frame; 2, cabinet; 3, column; 4, top seat; 5, base; 6, upper pressing plate; 7, lower supporting plate; 8, storage frame; 9, bottom plate; 10, L-shaped plate; 11, nut tube; 12, locking bolt; 13, limiting plate; 14, baffle; 15, door panel; 16, impact rod; 17, lock body; 18, lock tongue; 19, slideway; 20, impact bayonet; 21, positioning pin; 22, guide plate; 23, rib plate; 24, handle. Detailed implementation mode

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, if the terms "installation", "connection" and "connection" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Embodiment 1

[0028] As Figures 1-4 shown: A compression testing machine includes a frame 1 and a cabinet 2 arranged on one side of the frame 1. The frame 1 is controlled by the cabinet 2 to perform a compression test. The frame 1 includes four columns 3 arranged in a rectangular pattern and a top seat 4 and a base 5 respectively arranged at the upper and lower ends of the columns 3. An upper pressing member is arranged on the top seat 4, and a lower pressing member is arranged on the base 5. The upper pressing member includes an upper pressing plate 6, and the lower pressing member includes a lower supporting plate 7. During the test, a concrete specimen is placed on the lower supporting plate 7, and the upper pressing plate 6 and the lower supporting plate 7 are controlled to approach each other to squeeze the concrete specimen for a compression test. It should be known that the above are all prior art means and will not be elaborated in detail here.

[0029] The compression testing machine provided in this embodiment further includes a storage frame 8, which has an upward opening structure. The storage frame 8 is arranged on the lower platen 7 and can slide back and forth along the lower platen 7 and be locked. During the test, slide the storage frame 8 forward to slide it out of the frame 1, place the concrete specimen in the storage frame 8, then slide the storage frame 8 backward so that it is directly below the upper platen 6, lock the storage frame 8, control the upper platen 6 and the lower platen 7 to approach each other, the upper platen 6 extends into the storage frame 8 and then gradually squeezes the concrete specimen to conduct a compression test. After the test is completed, withdraw the upper platen 6 from the storage frame 8, release the locked state of the storage frame 8, pull out the storage frame 8 forward, clean the concrete specimen out of the storage frame 8, and then return the storage frame 8 to its original position and lock it for the next test.

[0030] Embodiment 2

[0031] As Figures 1-6 shown, on the basis of Embodiment 1, this embodiment provides a specific sliding connection structure between the storage frame 8 and the lower platen 7:

[0032] The lower platen 7 is a rectangular plate, and the bottom of the lower platen 7 is supported by support columns so that the lower platen 7 is suspended around. The bottom of the storage frame 8 is provided with a bottom plate 9. On the left and right sides of the lower surface of the bottom plate 9, L-shaped plates 10 are respectively provided. A C-shaped slideway 19 is formed between the L-shaped plates 10 and the bottom plate 9 of the storage frame 8. The left and right sides of the lower platen 7 are respectively clamped into the corresponding C-shaped slideways 19, so as to realize the sliding connection between the storage frame 8 and the lower platen 7.

[0033] Embodiment 3

[0034] On the basis of Embodiment 2, this embodiment provides a specific structure for locking the lower platen 7 and the storage frame 8:

[0035] A locking hole is provided on the L-shaped plate 10 on the left side of the storage frame 8. On the outer side of the L-shaped plate 10 at the locking hole, a nut tube 11 (with internal threads, the threads are not shown in the drawings) is also provided. A locking bolt 12 is provided at the nut tube 11 and is threadedly connected thereto. The locking bolt 12 passes through the nut tube 11 and into the locking hole, and by screwing in the locking bolt 12 to abut against the side of the lower platen 7, the storage frame 8 is locked so that it can no longer slide. The structure is simple and easy to operate. The length of the locking bolt 12 at least exceeds the inner side of the left column 3 of the frame 1. When the storage frame 8 is pulled out a certain distance, the locking bolt 12 is blocked by the column 3, so that the storage frame 8 cannot be pulled out further, thus preventing the storage frame 8 from accidentally disengaging from the lower platen 7. Secondly, when the locking bolt 12 abuts against the front column 3 of the frame 1, the C-shaped slideway 19 and the lower platen 7 still have a certain length of overlapping surface, such as 3 cm or more, so as to ensure that the connection between the C-shaped slideway 19 and the lower platen 7 also has a larger force-bearing area to ensure a stronger load-bearing capacity.

[0036] Example 4

[0037] This example is a further optimization and refinement of the structure of the storage frame 8 on the basis of Example 3. Specifically:

[0038] A limiting plate 13 is provided on the front side of the lower surface of the bottom plate 9 of the storage frame 8. When the storage frame 8 is pushed into the rack 1, by pushing the limiting plate 13 to abut against the small supporting plate, the storage frame 8 can be quickly and accurately pushed into place without over-pushing the storage frame 8.

[0039] Example 5

[0040] This example is a further optimization and refinement of the structure of the storage frame 8 on the basis of Example 4. Specifically:

[0041] Baffle plates 14 are respectively provided on the left and right sides and the rear side of the upper surface of the bottom plate 9. A door panel 15 is hingedly provided on the front side of the bottom plate 9. One side of the door panel 15 is hinged, and the opposite side of the hinged side is locked through a quick-lock structure. Therefore, the front side of the storage frame 8 can be opened and closed, which is convenient for taking and placing concrete specimens and also for cleaning the inside of the storage frame 8.

[0042] Example 6

[0043] This example provides a specific quick-lock structure on the basis of Example 5, as Figure 2 and Figure 5 shown. Specifically:

[0044] The quick-lock structure includes a striker 16 provided on the right side of the door panel 15 and an automatic locking mechanism provided on the right baffle plate 14. The automatic locking mechanism includes a lock body 17 and a lock tongue 18 that can slide up and down in the lock body 17. A slideway 19 and a collision bayonet 20 are provided on the lock tongue 18. A positioning pin 21 is provided on the lock body 17, and the positioning pin 21 is inserted into the slideway 19 to limit the stroke of the lock tongue 18. A lock opening is provided on the lock body 17, and the collision bayonet 20 is provided at the lock opening. The collision bayonet 20 includes an L-shaped lock track, and the upper side of the opening of the L-shaped lock track on the lock tongue 18 is provided with an arc-shaped structure. When locking the door panel 15, close the door panel 15 forcefully. The striker 16 on the door panel 15 hits the arc-shaped structure at the opening of the L-shaped lock track on the lock tongue 18, causing the lock tongue 18 to slide upward. The striker 16 is inserted into the L-shaped lock track, and then the lock tongue 18 slides downward under the action of gravity, and the striker 16 is locked. When unlocking, gently lift the lock tongue 18 by hand to release the striker 16, and the door panel 15 can be opened.

[0045] Example 7

[0046] This example is a further optimization and refinement of the structure of the storage frame 8 on the basis of Example 6. Specifically:

[0047] The upper end of the baffle 14 extends upward to form a guide plate 22. The guide plate 22 bends outward relative to the baffle 14 to form a flared opening structure, which facilitates the upper pressing plate 6 to accurately extend into the storage frame 8.

[0048] In this embodiment, a plurality of rib plates 23 are arranged in an array on the lower surface of the bottom plate 9 to improve the structural strength of the bottom plate 9.

[0049] In this embodiment, a handle 24 is provided on the door panel 15 or the limit plate 13 to facilitate pushing and pulling the storage frame 8. The door panel 15 is made of a transparent plastic door panel 15 or a plurality of observation holes are formed in the door panel 15 to facilitate observing the test condition of the internal concrete specimen.

[0050] This application can utilize the existing DYE-2000 type pressure testing machine, and then design and install the structure of the storage frame 8 according to the content disclosed in this application, so as to make full use of and save resources.

[0051] It can be understood that although this application is designed for the structure of the existing DYE-2000 type pressure testing machine, it can also be used on other pressure testing machine structures by simply changing the sliding connection structure of the storage frame 8 / and the structure of the storage frame 8.

[0052] In addition, in the description of the present invention, unless otherwise specified, if the terms "a plurality of", "a plurality of roots", "a plurality of groups" are used, their meanings are two or more, and the meanings of "several", "several roots", "several groups" are one or more. In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, if the terms "first", "second", "third" are used only for descriptive purposes, they cannot be understood as indicating or implying relative importance.

[0053] The specific embodiments of the present invention have been described in detail above with reference to the drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A compression testing machine, comprising a frame and a cabinet disposed on one side of the frame. The frame includes four columns and top seats and bottom seats respectively disposed at the upper and lower ends of the columns. An upper pressing member is provided on the top seat, and a lower pressing member is provided on the bottom seat. The upper pressing member includes an upper pressing plate, and the lower pressing member includes a lower supporting plate. During the test, a concrete specimen is placed on the lower supporting plate, and the upper pressing plate and the lower supporting plate are controlled to approach each other to compress the concrete specimen for a compression test. It is characterized in that: It further includes a storage frame, which is disposed on the lower supporting plate and can slide back and forth along the lower supporting plate and be locked. During the test, a concrete specimen is placed in the storage frame, and the upper pressing plate and the lower supporting plate are controlled to approach each other. The upper pressing plate extends into the storage frame and gradually compresses the concrete specimen for a compression test.

2. The pressure testing machine according to claim 1, characterized in that: The lower supporting plate is a rectangular plate. A bottom plate is provided at the bottom of the storage frame. L-shaped plates are respectively provided on the left and right sides of the lower surface of the bottom plate. A C-shaped slideway is formed between the L-shaped plates and the bottom plate of the storage frame. The left and right sides of the lower supporting plate are respectively clamped into the corresponding C-shaped slideways.

3. The compression testing machine according to claim 2, characterized in that: A locking hole is provided on the L-shaped plate on the left side of the storage frame. A nut tube is further provided on the outer side of the L-shaped plate at the locking hole. A locking bolt is provided at the nut tube and is threadedly connected thereto. By screwing in the locking bolt to abut against the lower supporting plate, the storage frame is locked. The length of the locking bolt is at least longer than the inner side of the left column of the frame.

4. The compression testing machine according to claim 3, characterized in that: A limiting plate is provided on the front side of the lower surface of the bottom plate of the storage frame.

5. The compression testing machine according to claim 4, characterized in that: Baffles are respectively provided on the left and right sides and the rear side of the upper surface of the bottom plate. A door panel is hingedly provided on the front side of the bottom plate. One side of the door panel is hinged, and the opposite side of the hinged side is locked by a quick-locking structure.

6. The compression testing machine according to claim 5, wherein: The quick-locking structure includes a striker provided on the door panel and an automatic locking device provided on the baffle. The automatic locking device includes a lock body and a lock tongue that can slide up and down in the lock body. A slideway and a striker bayonet are provided on the lock tongue. A positioning pin is provided on the lock body and is inserted into the slideway. A lock port is provided on the lock body, and the striker bayonet is provided at the lock port. The striker bayonet includes an L-shaped lock track, and the upper side of the opening of the L-shaped lock track on the lock tongue is provided with an arc-shaped structure.

7. The compression testing machine according to claim 5 or 6, characterized in that: The upper end of the baffle extends upward to form a guide plate, and the guide plate bends outward relative to the baffle.

8. The compression testing machine according to claim 7, wherein: A plurality of rib plates are arranged in an array on the lower surface of the bottom plate.

9. The compression testing machine according to claim 8, wherein: A handle is provided on the door panel or the limiting plate. The door panel is made of a transparent plastic door panel or a plurality of observation holes are opened on the door panel.

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