CN210128901U

CN210128901U - Pressure testing machine with protection device

Info

Publication number: CN210128901U
Application number: CN201920818312.1U
Authority: CN
Inventors: 洪海禄; 梁金成
Original assignee: Guangzhou Construction Group Concrete Co ltd
Current assignee: Guangzhou Construction Group Concrete Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-03-06
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a compression testing machine with protector relates to a concrete quality detection device, aims at solving the compression testing in-process, and the inconvenient staff's of piece sputtering problem of clearance, and its technical scheme main points are: the pressure testing machine comprises a frame, the frame includes the mount table that the longitudinal symmetry set up, two vertical being fixed with a plurality of stands between the mount table, two vertical sliding between the mount table is connected with down the platen, and is a plurality of the stand encircles the platen and distributes the setting down, install the drive motor that the platen vertically slided under the drive on the mount table, platen below fixedly connected with objective table down, the lid closes on the side of frame and is connected with a plurality of guard gates, and is a plurality of the guard gate encloses and establishes the objective table. The utility model discloses in the use, it can block piece sputtering, concentrates the piece that experimental production to clearance after experimental.

Description

Pressure testing machine with protection device

Technical Field

The utility model relates to a concrete detection device especially relates to a compression testing machine with protector.

Background

The pressure tester is a detection device for detecting the compressive strength of a material.

The use method of the existing pressure tester comprises the following steps: the material to be measured is placed on an object stage of the machine body, and then the pressure is exerted on the material by a pressure exerting device on the machine body. In the course of the test according to the above method, there was a problem that: the test material spatters after the overpressure fractures, causing a situation where the user is injured.

In order to solve the above problems, in the prior art, an electro-hydraulic servo pressure tester for testing compressive strength is disclosed. The electro-hydraulic servo pressure testing machine adopts a microcomputer to control a high-precision electro-hydraulic servo valve, drives a precision hydraulic cylinder, automatically controls the testing force and displacement and completes the compression test of a sample. The main frame of the tester adopts a four-upright frame structure, the oil cylinder is arranged below the oil cylinder, the hydraulic servo and the microcomputer control display system are adopted, the microcomputer control display system controls the test platform through the data transmission line, and testers can complete the setting, control, data acquisition, processing analysis, storage and display of test parameters in the test process by operating the microcomputer control display system, so that the testers are far away from the objective table, and the damage of sputtering and flying out of broken materials to the testers is reduced.

Although the pressure test device enables a tester to be far away from the test platform, broken materials are sputtered after the test is completed, and therefore the cleaning of the scraps is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compression testing machine with protector, it can be to the piece restriction and the concentration that the test produced to make things convenient for the follow-up clearance of doing of staff.

The utility model aims at realizing through the following technical scheme:

the utility model provides a compression testing machine with protector, including the frame, the frame includes the mount table that the longitudinal symmetry set up, two vertical being fixed with a plurality of stands between the mount table, two vertical sliding between the mount table is connected with down the platen, and is a plurality of the stand encircles platen distribution setting down, install the vertical driving motor who slides of drive platen under the drive on the mount table, platen below fixedly connected with objective table down, the lid closes on the side of frame and is connected with a plurality of guard gates, and is a plurality of the guard gate encloses and establishes the objective table.

Through the technical scheme, the test materials sputtered and flying out can be blocked by the protective door and limited on the mounting table, so that the test personnel can be prevented from being damaged by the sputtered and flying out test materials, and the subsequent users can conveniently clean the waste materials on the object stage.

The utility model discloses further set up to: one side of the protective door is hinged to the upright post, and the protective door comprises a door frame and a protective net connected to the door frame.

Through the technical scheme, in the process of testing, a tester can monitor the testing material to be tested through the protective net, so that the carrying state of the testing experiment can be conveniently known.

The utility model discloses further set up to: the door frame is fixedly connected with an explosion-proof glass plate matched with the inner frame, and the explosion-proof glass plate is positioned on the outer side of the protective net.

Through above-mentioned technical scheme for at the in-process of carrying out the test experiment, it is tiny, the piece of the mesh of accessible fire prevention net can be blocked by explosion-proof glass board, with the result of use of guaranteeing the guard gate, simultaneously because it is glass, so do not cause the interference to staff observation test process.

The utility model discloses further set up to: the object table is connected with a plurality of object blocking plates, the object blocking plates surround the object table, the upper ends of the object blocking plates are higher than the upper table surface of the object table, and the object blocking plates are made of transparent materials.

Through above-mentioned technical scheme for cracked test material can be blocked by the fender thing board in the test experiment process, reduces the piece that falls into the frame lower part, the clearance after the experiment of being convenient for, and the user can also observe the state of test material through transparent fender thing board simultaneously.

The utility model discloses further set up to: the side wall of the objective table is fixedly connected with a clamping plate, the clamping plate transversely extends towards the outside of the objective table and upwards extends, a slot is formed between the part of the clamping plate, which upwards extends, and the objective table, and the object blocking plate is inserted into the slot.

Through the technical scheme, the object blocking plate is installed and fixed in a mode of inserting the inserting slot, so that the object blocking plate is convenient to install and disassemble, and subsequent workers can clean the object blocking plate conveniently.

The utility model discloses further set up to: the object blocking plate is horizontally connected with a positioning assembly, the positioning assembly comprises a push block and a push rod, the push rod faces towards the object to be detected, and the push block is fixedly connected to the end portion of the push rod and is abutted against the object to be detected.

Through above-mentioned technical scheme, can utilize ejector pad butt determinand, a plurality of ejector pads cooperate each other to limit determinand to prevent among the test procedure, determinand removes and influence the result of use.

The utility model discloses further set up to: the device comprises a blocking plate, a positioning assembly, a push block and a telescopic spring, wherein the blocking plate is provided with a through hole, the through hole and the positioning assembly are coaxial, the positioning assembly comprises the push block and a push rod, the push block is fixedly connected onto the push rod, the push rod penetrates through the through hole to extend out of the blocking plate, the push rod is sleeved with the telescopic spring, one end of the telescopic spring is fixed onto the push block, and the other end of the telescopic spring is fixed onto the blocking plate.

Through the technical scheme, the push rod can slide relative to the object blocking plate, so that the positioning assembly can be suitable for abutting objects to be detected with various sizes; meanwhile, under the action of the telescopic spring, the limiting capacity of the positioning assembly is ensured.

The utility model discloses further set up to: and an anti-skid bulge is arranged on the end surface of the push block, which is far away from the push rod.

Through the technical scheme, when the push block is abutted against the test material, the probability of slippage of the test material relative to the push block is reduced, and the experimental effect is optimized.

The utility model discloses further set up to: the telescopic spring is sleeved with a rubber corrugated sleeve, one end of the rubber corrugated sleeve is fixed on the push block, and the other end of the rubber corrugated sleeve is fixed on the object blocking plate.

Through above-mentioned technical scheme, can avoid cracked test material and expanding spring contact, avoid influencing locating component's centre gripping effect, protect expanding spring.

To sum up, the utility model discloses following beneficial effect has:

1. in the experimental process, through the protective door which can be opened, the cracked test material can be prevented from sputtering and flying out to hurt the tester;

2. the sputtering flying-out test materials are concentrated in the pressure testing machine through the arranged protective door, the protective door can be opened during cleaning, cleaning is convenient, meanwhile, the materials which are crushed into the sputtering flying-out materials can be concentrated on the objective table through the object blocking plate, and subsequent scrap cleaning is further convenient;

3. the object blocking plate is provided with a positioning assembly which limits the test materials with different sizes in the middle of the object stage, so that the test materials are prevented from moving on the object stage to influence the test effect.

Drawings

Fig. 1 is a partial exploded view of the present invention, mainly used to show the overall structure;

fig. 2 is a schematic view of a partial structure of the present invention, which is mainly used for showing the structures of the object stage and the object blocking plate;

FIG. 3 is a schematic view of a partial structure of the present invention, which is mainly used for showing the screw nut pair structure;

in the figure: 1. a frame; 11. A protective door; 111. a door frame; 112. a protective net; 113. an explosion-proof glass plate; 12. an installation table; 13. a column; 2. a drive motor; 3. a screw and nut pair; 31. a screw; 311. pressing down the platform; 3111. a guide restricting lever; 32. a nut; 4. an object stage; 40. a slot; 401. a groove; 41. an object blocking plate; 410. a protrusion; 421. a push block; 4211. anti-skid stripes; 422. a push rod; 423. a through hole; 424. a tension spring; 425. a rubber corrugated sleeve.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The utility model provides a compression testing machine with protector, refers to fig. 1, including frame 1, frame 1 adopts four stand frame construction, and frame 1 is vertical and evenly is equipped with four stands 13 including two mount tables 12 that are the symmetry setting from top to bottom between two mount tables 12, and the vertical projection line of four stands 13 is the rectangle. The mounting table 12 at the upper part is fixedly provided with a driving motor 2, and an output shaft of the driving motor 2 is fixedly provided with a gear with a central shaft. The upper mounting table 12 is connected with a screw and nut pair 3, the screw and nut pair 3 comprises a screw 31 and a nut 32 in threaded connection with the screw 31, and the screw 31 vertically penetrates through the mounting table 12 downwards; straight teeth are formed on the outer ring of the nut 32 and meshed with a gear on an output shaft of the driving motor 2; the nut 32 is restrained and fixed by upper and lower thrust bearings in the axial direction and is not axially movable. The driving motor 2 can drive the nut 32 to rotate so as to drive the screw 31 to ascend and descend. A pressing base 311 is fixed to an end of the screw 31 remote from the nut 32, and the pressing base 311 has a rectangular parallelepiped shape. A rectangular parallelepiped stage 4 is fixed to a lower mount 12 directly below the lower platen 311, and a plan view of the lower platen 311 is located within a plan view of the stage 4, and the screw 31, the lower platen 311, and the stage 4 are concentric.

In order to prevent the screw 31 from rotating relative to the frame 1, a plurality of guide bars 3111 are fixed to the lower press table 311, and the guide bars 3111 extend horizontally away from the axis of the screw 31, and are respectively tangent to adjacent columns to prevent the screw 31 from rotating. In order to prevent the guide restricting lever 3111 from affecting the pressure test, the guide restricting lever 3111 is fixedly mounted on the upper stage surface of the lower pressing stage 311.

In order to prevent the test personnel and equipment from being damaged by sputtered and flying test materials when the test personnel performs a compressive strength test, four protective doors 11 are covered and connected on each side surface of the rack 1, each protective door 11 comprises a door frame 111, and a protective net 112 matched with an inner frame cavity of the door frame 111 is installed on the door frame 111; the protective door 11 is matched with the side surface of the machine body between two adjacent upright columns 13 so as to be used for blocking the test materials sputtered and flying out and protecting test personnel and equipment.

In order to facilitate the cleaning of the material chips scattered in the machine frame after the compression test is completed, the protective door 11 is connected to the upright post of the machine frame 1 in a transverse hinged manner, so that the protective door 11 can be opened outwards around the axis of the upright post, and the user can insert the hand into the machine frame 1 to clean the material chips.

In order to prevent fine material fragments from flying through the meshes of the protection net 112, an explosion-proof glass plate 113 fitted into the inner cavity of the door frame 111 is installed outside the protection net 112 to block the sputtered fine test material, and the user can observe the state of the test experiment through the explosion-proof glass plate 113. When a test experiment is carried out, part of the test material is cracked, sputtered and splashed out due to the extrusion of the pressing table 311, and the sputtered and splashed test material is blocked by the explosion-proof glass plate 113, so that the test material is convenient to clean after the test.

Referring to fig. 2, after the test process is performed, a portion of the material under test may be chipped off on the stage 4 to facilitate cleaning of the chipped test material. The side wall of the objective table 4 is fixedly connected with a clamping plate, and the clamping plate transversely extends towards the outside of the objective table and upwards extends; a slot 40 is formed between the upwardly extending part of the clamping plate and the object stage. Transparent object blocking plates 41 are inserted into the slots 40, grooves 401 are formed in the inner walls of the slots 40 in the vertical direction, and protrusions 410 matched with the grooves 401 are formed in the object blocking plates 41; when the object blocking plate 41 is inserted into the slot 40, the protrusion 410 is engaged with the groove 401, so that the object blocking plate 41 cannot slide horizontally along the slot 40 in the slot 40. The test material broken after the test is completed is caught by the catch plate 41 so that the broken test material can be concentrated on the stage 4 to facilitate cleaning of the test material after the test is completed. The upper edge of the object baffle plate 41 is higher than the upper table surface of the object stage 4 so as to ensure the use effect.

In order to prevent the test material from moving on the stage 4 and affecting the experimental effect, a positioning component is horizontally installed on the object baffle plate 41 and can abut against the test material. The positioning assembly includes a push block 421 abutting against the test material and a push rod 422 pushing the push block 421, one end of the push rod 422 is fixed on the object blocking plate 41, and the other end is fixedly connected with the push block 421.

In order to stabilize the stress when the test material is fixed on the object stage 4, the positioning component is vertically arranged with the object baffle plate 41, and the positioning component passes through the geometric center of the object baffle plate 41; while the locating components on non-adjacent baffle plates 41 are coaxial. In the test, a test material is placed on the stage 4 and pushed by the pusher 421 so that the test material cannot move freely. The thickness of the push block 421 is smaller than the thickness of the test material to avoid interference with the test effect, and the abutting area between the push block and the test material should be relatively small, such as 1 × 1cm, to avoid interference with the pressure test.

In order to enable the object blocking plate 41 to clamp test materials with different sizes, a through hole 423 is formed in the geometric center of the object blocking plate 41, wherein the through hole 423 is coaxial with the push rod 422, the push rod 422 penetrates through the through hole 423, so that the positioning assembly can slide relative to the object blocking plate 41, and a part of the push rod 422, which is far away from the push block 421, extends out of the object blocking plate 41 through the through hole 423. The end face of the push block 421 away from the push rod 422 is formed with a strip-shaped anti-slip stripe 4211, the anti-slip stripe 4211 is formed along the vertical direction, the friction force between the push block 421 and the test material is increased through the anti-slip stripe 4211, and the clamping effect of the positioning assembly is enhanced.

In order to enable the positioning assembly to clamp the test material, the push rod 422 is sleeved with a telescopic spring 424, one end of the telescopic spring 424 is fixed on the push block 421, and the other end of the telescopic spring 424 abuts against one side of the object baffle plate 41 facing the center of the object stage 4, so that the push rod 422 can slide. When the test material is clamped, the push block 421 is pushed out under the action of the elastic force of the extension spring 424, the push block 421 abuts against the test material, and the test material cannot slide on the object stage 4 at will because the test material is abutted by the push block 421 in multiple directions.

In order to protect the extension spring 424 and the push rod 422 and prevent debris from entering the positioning assembly to affect the clamping effect, a rubber corrugated sleeve 425 is sleeved outside the extension spring 424, one end of the rubber corrugated sleeve 425 is fixed on the push block 421, and the other end of the rubber corrugated sleeve 425 is fixed on the object blocking plate 41. During use, the cracked test material is blocked by the rubber bellows 425, preventing the cracked material from entering the gaps of the extension springs 424, affecting the clamping effect. To account for the interference of the extension springs 424 with the test, springs with relatively low stiffness coefficients may be selected, for example: 10N can compress it by 3 cm.

In carrying out the pressure test experiment, the procedure was as follows:

1. the protective door 11 is opened, the test material is placed in the middle of the objective table 4, the object blocking plates 41 are inserted, the push block 421 abuts against the test material under the action of the telescopic springs 424, the test material is surrounded by the object blocking plates 41, sputtering of the broken test material is reduced, and meanwhile the test material is convenient to clean;

2. closing the protective door 11, starting the driving motor 2 to drive the nut 32 to rotate, driving the screw 31 to slide downwards by the nut 32, enabling the lower pressing table 311 which is fixedly arranged on the screw 31 to move downwards, pressing the test material for testing, and observing the test state through the protective door 11;

3. after the test is completed, the lower pressing table 311 is reset, the four protective doors 11 are opened, the object blocking plate 41 is taken down, and the chips scattered in the object stage 4 and the protective doors 11 are cleaned up.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a compression testing machine with protector, includes frame (1), frame (1) is including mount table (12) that are symmetry setting from top to bottom, two vertically between mount table (12) be fixed with a plurality of stands (13), two vertical sliding connection has down platen (311) between mount table (12), and is a plurality of stand (13) encircle platen (311) and distribute the setting down, install on mount table (12) drive motor (2) that platen (311) vertically slided under the drive, platen (311) below fixedly connected with objective table (4) down, its characterized in that: the side of frame (1) is gone up to cover and is closed and be connected with a plurality of guard gate (11), and is a plurality of guard gate (11) enclose and establish objective table (4).

2. The compression testing machine with the protection device according to claim 1, wherein: one side of the protective door (11) is hinged to the upright post (13), and the protective door (11) comprises a door frame (111) and a protective net (112) connected to the door frame (111).

3. The compression testing machine with the protection device according to claim 2, wherein: the anti-explosion door is characterized in that the door frame (111) is fixedly connected with an anti-explosion glass plate (113) matched with the inner frame, and the anti-explosion glass plate (113) is positioned on the outer side of the protective net (112).

4. The compression testing machine with the protection device according to claim 1, wherein: the object stage (4) is connected with a plurality of object blocking plates (41), the object blocking plates (41) surround the object stage (4), the upper ends of the object blocking plates (41) are higher than the upper table surface of the object stage (4), and the object blocking plates (41) are made of transparent materials.

5. The compression testing machine with the protection device according to claim 4, wherein: the lateral wall fixedly connected with splint of objective table (4), splint transversely extend outward towards objective table (4) to upwards extend, splint upwards extend the position and be formed with slot (40) between the objective table, keep off thing board (41) and peg graft in slot (40).

6. The compression testing machine with the protection device according to claim 5, wherein: keep off thing board (41) horizontally connect with locating component, locating component is including ejector pad (421) and push rod (422), push rod (422) are towards the determinand, ejector pad (421) fixed connection in push rod (422) tip and butt in the determinand.

7. The compression testing machine with the protection device according to claim 6, wherein: the utility model discloses a stopper, including stopper board (41), locating component, push rod (422), telescopic spring (424), push rod (422), through-hole (423) has been seted up on stopper board (41), through-hole (423) and locating component are coaxial, push rod (422) pass through-hole (423) and stretch out stopper board (41), telescopic spring (424) have been cup jointed on push rod (422), telescopic spring (424)'s one end is fixed on ejector pad (421), and the other end butt is in the one side of stopper board (41) towards the center of objective table (4).

8. The compression testing machine with the protection device according to claim 7, wherein: the end surface of the push block (421), which is far away from the push rod (422), is provided with anti-skid stripes (4211).

9. The compression testing machine with the protection device according to claim 8, wherein: the telescopic spring (424) is sleeved with a rubber corrugated sleeve (425), one end of the rubber corrugated sleeve (425) is fixed on the push block (421), and the other end of the rubber corrugated sleeve (425) is fixed on the object blocking plate (41).