CN220231292U - Pressure testing machine - Google Patents

Abstract

The application relates to a pressure testing machine belongs to the field of test device, it includes the supporting shoe, fixedly connected with accepts the piece on the supporting shoe, fixedly connected with a plurality of stands on the supporting shoe, a plurality of stands keep away from the one end fixedly connected with same roof of supporting shoe, one side that the roof is close to accepting the piece is equipped with the briquetting, briquetting fixedly connected with can drive the briquetting to the pneumatic cylinder that is close to one side that accepts the piece and remove, the protection casing has been cup jointed in the briquetting lateral wall slip, the briquetting can cover the in-process protection casing that is moved to being close to accepting the piece and establish on accepting the piece, still be equipped with on the supporting shoe and will accept the piece and enclose the sediment ring that gathers including, the protection casing is when will accept the piece cover to establish inside, the protection casing is located the inside of gathering the sediment ring, still be equipped with the scarfing cinder subassembly that is used for clearing up in the sediment ring that gathers sediment is offered on the supporting shoe and is linked together inside and external discharge gate. The test device has the advantage that the chips generated in the test process can be cleaned conveniently after the test is finished.

Description

Pressure testing machine

Technical Field

The application relates to the field of test devices, in particular to a pressure testing machine.

Background

The pressure testing machine is a testing device for testing the compressive strength of materials by pressurizing the materials until the materials are damaged, and is widely applied to various physical and mechanical property tests of materials such as rubber, plastic plates, pipes, special-shaped materials, plastic films, wires and cables, waterproof coiled materials, metal wires, rock samples and the like.

The current pressure testing machine generally places a tested sample on a testing platform, and then presses the sample above the testing platform through a pressure device, so that the detection process of the compressive strength of the sample is realized.

Some samples are cracked when subjected to high pressure during the detection process, and scraps can be splashed when the samples are cracked, so that the scraps are troublesome to clean by test personnel later.

Disclosure of Invention

In order to facilitate cleaning of debris generated during the test after the test is completed, the application provides a pressure testing machine.

The application provides a pressure testing machine adopts following technical scheme:

the utility model provides a pressure testing machine, includes the supporting shoe, fixedly connected with holds the piece on the supporting shoe, fixedly connected with is a plurality of stands on the supporting shoe, a plurality of the stand is kept away from the one end fixedly connected with of supporting shoe is same roof, the roof is close to one side of holding the piece is equipped with the briquetting, briquetting fixedly connected with can drive the briquetting is to being close to the pneumatic cylinder that one side of holding the piece removed, the briquetting lateral wall slides and cup joints the protection casing, the briquetting is being close to the in-process of holding the piece removal the protection casing can be covered and establish on the holding piece, still be equipped with on the supporting shoe with hold the piece surrounds and gathers the sediment ring including, the protection casing will when holding the piece cover and establish inside, the protection casing is located gather the inside of sediment ring, still be equipped with on the supporting shoe and be used for the clearance gather sediment ring inside broken bits's a clear sediment subassembly, set up on the supporting shoe and communicate and gather sediment ring inside and external discharge gate.

Through adopting above-mentioned technical scheme, when the test, place the sample on the supporting shoe after, start the pneumatic cylinder, the pneumatic cylinder drives the briquetting and moves down, the protection casing is down moved simultaneously and is covered in the outside of supporting shoe to be established under the effect of gravity, later exert pressure to the sample on the supporting shoe through the briquetting, after the test is accomplished, start the pneumatic cylinder and drive briquetting and protection casing and upwards move, clean the broken bits on the supporting shoe to the inside of gathering the sediment ring on the supporting shoe, later clear up the piece of gathering the sediment ring inside through the scarfing cinder subassembly, thereby make the piece of gathering the sediment ring inside can follow the discharge gate and drop, accept the piece that drops to the discharge gate department, and then realize the clearance to the piece that produces in the test process has reduced the trouble of the piece that test personnel clear up the in-process produced.

Optionally, the supporting block is further provided with a scraping component for scraping off the scraps on the bearing block.

Through adopting above-mentioned technical scheme for scrape the existence of material subassembly for the piece on the holding piece can clear up through scraping the material subassembly, has reduced the trouble that needs the experimenter to carry out manual clearance to the piece on the holding piece.

Optionally, the scarfing cinder subassembly including rotate connect in gather a plurality of scarfing cinder boards of sediment ring inside, every the scarfing cinder board is close to one side of supporting shoe is equal fixedly connected with scarfing cinder brush, every the scarfing cinder board with gather all fixedly connected with compression spring between the lateral wall of sediment ring, every the scarfing cinder board keep away from with gather sediment ring rotation junction's one end homoenergetic with the lateral wall butt of supporting shoe, gather sediment ring with the upper surface rotation of supporting shoe is connected.

Through adopting above-mentioned technical scheme, when the piece is cleared up to gathering the sediment ring inside, rotate and gather sediment ring, gather sediment ring and encircle a plurality of scarfing cinder boards and rotate, a plurality of scarfing cinder boards clear up gathering the inside piece of sediment ring at pivoted in-process to the realization is clear up to gathering sediment ring inside piece to discharge gate department exhaust process.

Optionally, the outer lateral wall of gathering the sediment ring has fixedly cup jointed the ring gear, gather one side of sediment ring be equipped with the driving gear of ring gear meshing, one side fixedly connected with driving motor of driving gear.

Through adopting above-mentioned technical scheme, gather sediment ring rotation through driving motor drive, can reduce the experimenter and gather the sediment ring when the piece of sediment ring inside needs clearance, manual rotation gathers the trouble of sediment ring.

Optionally, the scarfing cinder board keep away from with the scarfing cinder board rotates the one end of junction with gather between the inner wall of sediment ring all be equipped with be used for fixing the scarfing cinder board with gather the joint subassembly of the relative position between the lateral wall of sediment ring.

Through adopting above-mentioned technical scheme, because the existence of joint subassembly, can be so that when need not using the scarfing cinder board to clear up the interior portion of gathering the sediment ring, will clear the sediment board and be fixed in the one side that is close to gathering the sediment ring lateral wall through the joint subassembly for the lower terminal surface of protection casing can with the upper surface butt of supporting shoe, thereby reduced the protection casing overlap joint and lead to falling on the sediment board and have the emergence of piece difficult to clear up the phenomenon on the sediment board.

Optionally, the joint subassembly includes fixed connection in a plurality of fixed blocks on the sediment ring lateral wall gathers, the fixed block be close to one side slip grafting of clear sediment board has the joint piece, the joint piece be close to gather sediment ring one side can with the lateral wall butt of clear sediment board.

Through adopting above-mentioned technical scheme, when needs are fixed the scarfing cinder board, remove the scarfing cinder board to the one side that the joint piece is close to gathering the sediment ring lateral wall, carry out the joint to the one end that the rotation point was kept away from to the scarfing cinder board through the joint piece to realize the joint process to the scarfing cinder board.

Optionally, scrape the material subassembly and include a plurality of connecting rods that set up relatively, and a plurality of the connecting rod all with adjacent stand fixed connection, a plurality of slide on the connecting rod cup joint same can be right scrape the flitch of material operation is scraped to the upper surface of receiving piece, one side of scraping the flitch still is equipped with and is used for driving scrape the electric putter that the flitch removed.

Through adopting above-mentioned technical scheme, when the top piece to the piece that holds when needs clear up, start electric putter, electric putter drives scrapes the flitch and scrapes the material to holding the piece top to can scrape the piece on the piece that holds to gather the inside of sediment ring, and then realized the clearance process to holding piece top piece.

Optionally, a brush plate for cleaning the upper surface of the scraping plate is further arranged on one side of the scraping plate.

Through adopting above-mentioned technical scheme, because the existence of brush board can carry out more abundant clearance to the piece on the piece of accepting to reduced because the piece that remains on the piece of accepting leads to influencing the emergence of follow-up test process phenomenon.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the debris generated in the test process can be concentrated through the cooperation of the protective cover and the slag gathering ring, so that the process of collecting the debris generated in the test process by a worker is quickened;

2. through the cooperation of the slag removal assembly, the slag gathering ring and the discharge hole formed in one side of the supporting block, the scraps falling onto the supporting block inside the slag gathering ring can be cleaned, and the scraps can be intensively treated after being cleaned out of the discharge hole;

3. through the existence of scraping the material subassembly, can clear up the broken bits that remain on the piece of acceping to reduce the trouble that needs the staff to clear up the piece on the piece of acceping.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a cross-sectional view of the overall structure of an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a connection relationship between a slag gathering ring and a slag removal assembly according to an embodiment of the present application.

Fig. 4 is an enlarged schematic view of a portion of the structure a of fig. 2.

Fig. 5 is a partially enlarged schematic view of the B structure of fig. 3.

Reference numerals illustrate: 1. a support block; 11. a column; 12. a top plate; 13. a discharge port; 14. a material receiving box; 15. an annular groove; 2. a receiving block; 3. briquetting; 31. a pressure hydraulic cylinder; 32. a protective cover; 4. slag gathering ring; 41. a ring moving block; 5. a slag removal assembly; 51. a slag removing plate; 511. a slag removing brush; 52. a pressure spring; 53. a gear ring; 54. a drive gear; 55. a driving motor; 6. a scraping assembly; 61. a connecting rod; 62. a scraping plate; 63. a positioning plate; 64. an electric push rod; 65. a brush plate; 7. a clamping assembly; 71. a fixed block; 72. a clamping block; 73. and (5) clamping the spring.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1-5.

The embodiment of the application discloses a pressure testing machine, refer to fig. 1, including supporting shoe 1, the surface level setting of supporting shoe 1. The middle position of the upper surface of the supporting block 1 is fixedly connected with a bearing block 2, and one side of the bearing block 2 away from the upper surface of the supporting block 1 is horizontally arranged.

The upper surface fixedly connected with of supporting shoe 1 is a plurality of vertical setting stands 11, sets up stand 11 and is four in this embodiment, and is located the outside edge department evenly distributed of supporting shoe 1 upper surface. The length of the four upright posts 11 is the same, one side of the four upright posts 11 far away from the upper surface of the supporting block 1 is fixedly connected with the same top plate 12, and the top plate 12 is horizontally arranged.

Referring to fig. 2, a pressing block 3 is further provided at a position opposite to the receiving block 2 on a side of the top plate 12 near the upper surface of the supporting block 1. One side of the top plate 12 far away from the pressing block 3 is fixedly connected with a vertically arranged pressure hydraulic cylinder 31, the pressure hydraulic cylinder 31 is vertically arranged, and a piston rod is arranged towards one side close to the bearing block 2. The piston rod of the pressure cylinder 31 penetrates the top plate 12 and is fixedly connected with the pressing block 3.

The protective cover 32 has been cup jointed in the last slip of briquetting 3, and the lateral wall that the protective cover 32 is close to briquetting 3 slides the butt along vertical direction with briquetting 3, and the up end of protective cover 32 and briquetting 3's upper surface joint for briquetting 3 can drive protective cover 32 upward movement at the in-process of upward movement. The lower end surface of the shield 32 is inclined downward gradually to a side away from the center line of the shield 32.

The upper surface of supporting shoe 1 still is equipped with gathers sediment ring 4, gathers sediment ring 4 and establishes the support piece 2 cover in gathering the inside intermediate position of sediment ring 4, and gathers sediment ring 4 and the upper surface connection of supporting shoe 1. After the descent of the shield 32, the lower end face of the shield 32 likewise falls inside the slag trap 4. Still be equipped with scarfing cinder subassembly 5 on the supporting shoe 1, set up scarfing cinder subassembly 5 can clear up the broken bits between gathering sediment ring 4 inside and the adapting block 2. The supporting block 1 is further provided with a discharge hole 13, the discharge hole 13 penetrates through the side wall of the supporting block 1 from the inside of the slag gathering ring 4 to be communicated to the outside, and the bottom wall of the discharge hole 13 is gradually inclined downwards along one side close to the bearing block 2 to one side far away from the bearing block 2. One side of the side wall of the supporting block 1, which is close to the discharge hole 13, is fixedly connected with a material receiving box 14 for receiving falling scraps at the discharge hole 13.

When the sample is required to be tested, the sample is placed on the carrying block 2, then the pressure hydraulic cylinder 31 is opened, the piston rod of the pressure hydraulic cylinder 31 drives the pressing block 3 to move downwards in the downward moving process, the protecting cover 32 sleeved outside the pressing block 3 moves downwards under the action of gravity, so that the protecting cover 32 can be covered outside the pressing block 3 and the carrying block 2 in the pressing block 3 pressing process, and then the pressure hydraulic cylinder 31 is started to drive the pressing block 3 and the protecting cover 32 to lift after the test is finished.

Then, the slag on the bearing block 2 is cleaned to the inside of the slag aggregation ring 4, and the slag in the slag aggregation ring 4 is cleaned through the slag removal assembly 5, so that the slag in the slag aggregation ring 4 can slide from the discharge hole 13 on the supporting block 1 to the inside of the material receiving box 14 for centralized treatment.

Through the existence of protection casing 32, can retrain the piece that produces in the test process inside protection casing 32, later at the inside piece of protection casing 32 can drop to gather sediment ring 4 inside, later clear up the piece on the piece that will accept 2 to supporting shoe 1's upper surface and lie in gather sediment ring 4 inside after, clear up the piece through scarfing cinder subassembly 5 from the discharge gate 13 of supporting shoe 1 upper surface, made things convenient for the process of piece that produces in the test personnel clearance test process.

A scraping assembly 6 for cleaning the scraps on the upper surface of the bearing block 2 is also arranged above the bearing block 2.

Due to the scraping assembly 6, when scraps exist on the receiving block 2 after the test is finished, scraps on the receiving block 2 can be cleaned to the inside of the slag gathering ring 4 through the scraping assembly 6, so that the cleaning process of scraps generated in the test process is further facilitated.

Referring to fig. 3 and 4, the slag removing assembly 5 includes a plurality of slag removing plates 51, three slag removing plates 51 are provided in the present embodiment, and the three slag removing plates 51 are uniformly distributed inside the slag gathering ring 4. One end of each slag removing plate 51 is rotatably connected with the inside of the slag gathering ring 4 in the horizontal direction. The lower surface of each slag removing plate 51 is fixedly connected with a slag removing brush 511, and the lower end surface of each slag removing brush 511 can be abutted with the upper surface of the supporting plate.

A pressure spring 52 is fixedly connected between the side wall of one end of each slag removing plate 51, which is close to the rotation connection position of the slag gathering ring 4, and the side wall of the slag gathering ring 4, and one end of each slag removing plate 51, which is far away from the rotation point, can be abutted with the side wall of the bearing block 2 under the driving of the pressure spring 52.

The lower surface of the slag conglomeration ring 4 is fixedly connected with a ring moving block 41, and the cross section of the ring moving block 41 is T-shaped in the embodiment. The upper surface of the supporting block 1 is provided with an annular groove 15 which is used for placing the ring moving block 41 and rotating around the central line of the slag gathering ring 4.

During testing, the pressing block 3 drives the protective cover 32 to descend, so that the lower end face of the protective cover 32 is abutted against the upper surface of the supporting block 1, and the three slag removing plates 51 can be shifted by hands of a tester to the direction close to the side wall of the slag collecting ring 4, so that the lower end face of the protective cover 32 can be abutted against the upper surface of the supporting block 1. After the test is finished, one side of each slag removing plate 51 is abutted against the side wall of the bearing block 2 under the drive of the pressure spring 52, and then the slag collecting ring 4 is rotated to drive the three slag removing plates 51 to clean scraps inside the slag collecting ring 4 through the slag collecting ring 4, so that the scraps inside the slag collecting ring 4 can fall from the discharge hole 13.

The slag gathering ring 4 is fixedly connected with a gear ring 53 at one side far away from the bearing block 2, a driving gear 54 is arranged on the upper surface of the supporting block 1, and one side of the driving gear 54 is meshed with the gear ring 53. The inside of supporting shoe 1 is equipped with driving motor 55, and driving motor's 55 output shaft runs through the upper surface of supporting shoe 1 and rotates with the upper surface of supporting shoe 1 to be connected, and driving motor's 55 output shaft runs through the one end and the drive gear 54 fixed connection of supporting shoe 1 upper surface.

The driving motor 55 drives the driving gear 54 to rotate, the driving gear 54 rotates to drive the gear ring 53 to rotate, and the gear ring 53 drives the slag collecting ring 4 to rotate, so that the three slag removing plates 51 are driven to clean the scraps inside the slag collecting ring 4, and the trouble that workers clean the scraps inside the slag collecting ring 4 is more convenient.

Referring to fig. 3 and 5, the inside of the slag gathering ring 4 is further provided with a plurality of groups of clamping assemblies 7, three groups of clamping assemblies 7 are arranged in the embodiment, the three groups of clamping assemblies 7 are arranged in one-to-one correspondence with the three slag removing plates 51, each group of clamping assemblies 7 is located at one end, far away from the rotation point, of the corresponding slag removing plate 51, and each group of clamping assemblies 7 can fix the corresponding slag removing plate 51 at one side, close to the side wall of the slag gathering ring 4.

Because the clamping assembly 7 exists, when the broken slag in the slag aggregation ring 4 does not need to be cleaned, the position of the slag removal plate 51 is fixed through the clamping assembly 7, so that the follow-up test operation process of workers is facilitated.

The clamping assembly 7 comprises a fixed block 71 fixedly connected to the side wall of the slag gathering ring 4, which is close to the bearing block 2, the fixed block 71 is horizontally arranged, the fixed block 71 is close to one side of the corresponding slag removing plate 51, one end of the side wall of the slag gathering ring 4 is provided with a notch, the notch is internally and slidably inserted with a clamping block 72, one end of the clamping block 72 outside the notch is provided with an inclined surface, one side of the side wall of the slag gathering ring 4 is far away from the side of the clamping block 72, and the inclined surface is gradually inclined towards one side of the side wall of the slag gathering ring 4 along one side of the side wall of the slag gathering ring 71. The inside joint spring 73 that still is equipped with of notch, the one end of joint spring 73 is located the inside one end fixed connection of notch with joint piece 72, the one end and the inner wall fixed connection of notch that joint spring 73 kept away from joint piece 72.

When the slag removing plate 51 needs to be fixed through the clamping assembly 7, one end of the slag removing plate 51 rotates to the side close to the clamping block 72, then one end of the slag removing plate 51 is abutted against the inclined surface on the side of the clamping block 72, and then the clamping block 72 is pushed to the inside of the notch, so that the slag removing plate 51 can rotate between the clamping block 72 and the slag gathering ring 4, and then the clamping block 72 moves out of the inside of the notch under the driving of the clamping spring 73, so that the clamping of one end of the slag removing plate 51 is realized.

Referring to fig. 2 and 4, the scraping assembly 6 includes two oppositely disposed links 61, and each link 61 is located between two adjacent columns 11, and an end of each link 61 is fixedly connected to an adjacent column 11. The two links 61 are arranged in parallel on the same horizontal plane. A scraping plate 62 which is positioned on the same horizontal plane with the two connecting rods 61 is further arranged between the two connecting rods 61, the scraping plate 62 is perpendicular to the two connecting rods 61, a hole for accommodating the connecting rods 61 is formed in the end part of the scraping plate 62, and each connecting rod 61 penetrates through the hole formed in the end part of the scraping plate 62 and is in sliding butt joint with the inner wall of the hole. The scraper 62 can abut against the upper surface of the receiving block 2 while moving in the longitudinal direction of the two links 61.

The same locating plate 63 is fixedly connected between the two opposite upright posts 11, the locating plate 63 and the two connecting rods 61 are located in the same horizontal plane and are perpendicular to the two connecting rods 61, and the locating plate 63 is located at the end part of the two connecting rods 61 close to the same side. An electric push rod 64 is fixedly connected to one side middle position of the positioning plate 63, and the electric push rod 64 and the two connecting rods 61 are located in the same horizontal plane and are arranged in parallel with the two connecting rods 61. The piston rod of the electric push rod 64 penetrates through the positioning plate and is fixedly connected with the scraping plate 62.

When the chip exists on the upper surface of the bearing block 2 after the test is finished, the electric push rod 64 is started, the electric push rod 64 drives the scraping plate 62 to move, and the scraping plate 62 scrapes the chip on the upper surface of the bearing block 2 in the moving process, so that the chip on the upper surface of the bearing block 2 can fall into the slag collecting ring 4, and the cleaning process of the chip generated in the test process by workers is more convenient.

One side of the scraping plate 62 is fixedly connected with a hairbrush plate 65, the hairbrush plate 65 and the scraping plate 62 are arranged in parallel, the end parts of the hairbrush plate 65 are sleeved on the connecting rods 61 on two sides in the same way, and the hairbrush on the lower side of the hairbrush plate 65 can clean the upper surface of the bearing block 2 in the moving process along the connecting rods 61.

Due to the presence of the brush plate 65, a more adequate cleaning of the debris on the receiving block 2 can be achieved.

The implementation principle of the pressure testing machine in the embodiment of the application is as follows: when a compressive strength test is required to be carried out on a sample, the sample is placed on the receiving block 2, and then the pressure cylinder 31 is started to drive the pressing block 3 to press the sample on the receiving block 2, so that the test process of the sample is realized.

During the test, due to the presence of the shield 32, debris generated during the test is shielded inside the shield 32.

After the test is finished, the electric push rod 64 is started to clean the scraps on the carrying block 2, the scraps are cleaned to the inside of the slag gathering ring 4, and then the driving motor 55 is started to drive the three slag removing plates 51 to rotate, so that the scraps in the slag gathering ring 4 are cleaned to the discharge port 13, the scraps can fall into the material receiving box 14 along the discharge port 13, and the cleaning process of the scraps is realized.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A pressure testing machine, characterized in that: comprises a supporting block (1), supporting block (1) upper surface fixedly connected with accepts piece (2), fixedly connected with is a plurality of stand (11) on supporting block (1), a plurality of stand (11) are kept away from one end fixedly connected with same roof (12) of supporting block (1), roof (12) are close to one side of accepting piece (2) is equipped with briquetting (3), briquetting (3) fixedly connected with can drive briquetting (3) to be close to pressure cylinder (31) that one side of accepting piece (2) removed, briquetting (3) lateral wall sliding sleeve has protection casing (32), briquetting (3) are being close to in the process that accepting piece (2) removed protection casing (32) can cover and establish on accepting piece (2), still be equipped with on supporting block (1) will accept piece (2) and enclose in gathering slag ring (4), protection casing (32) are when will accept piece (2) cover and establish in inside, protection casing (32) are located gather slag ring (4) and are used for cleaning up in the inside of supporting block (4), the supporting block (1) is provided with a discharge hole (13) communicated with the inside of the slag gathering ring (4) and the outside.

2. A pressure testing machine according to claim 1, wherein: the supporting block (1) is also provided with a scraping component (6) for scraping the scraps on the bearing block (2).

3. A pressure testing machine according to any one of claims 1 or 2, wherein: the slag removal assembly (5) comprises a plurality of slag removal plates (51) which are rotationally connected to the inside of the slag accumulation ring (4), each slag removal plate (51) is close to one side of the supporting block (1) and fixedly connected with a slag removal brush (511), each slag removal plate (51) is fixedly connected with a pressure spring (52) between the side walls of the slag accumulation ring (4), one end, away from the connecting part of the slag accumulation ring (4), of each slag removal plate (51) can be abutted to the side wall of the supporting block (2), and the slag accumulation ring (4) is rotationally connected with the upper surface of the supporting block (1).

4. A pressure testing machine according to claim 3, wherein: the outer side wall of the slag gathering ring (4) is fixedly sleeved with a gear ring (53), one side of the slag gathering ring (4) is provided with a driving gear (54) meshed with the gear ring (53), and one side of the driving gear (54) is fixedly connected with a driving motor (55).

5. A pressure testing machine according to claim 4, wherein: and clamping assemblies (7) used for fixing the relative positions between the slag removing plate (51) and the side wall of the slag gathering ring (4) are arranged between one end, far away from the rotating connection position of the slag removing plate (51), of the slag removing plate (51) and the inner wall of the slag gathering ring (4).

6. A pressure testing machine according to claim 5, wherein: the clamping assembly (7) comprises a plurality of fixing blocks (71) fixedly connected to the side wall of the slag gathering ring (4), one side, close to the slag removing plate (51), of the fixing blocks (71) is slidably inserted with clamping blocks (72), and one side, close to the slag gathering ring (4), of the clamping blocks (72) can be abutted to the side wall of the slag removing plate (51).

7. A pressure testing machine according to claim 2, wherein: the scraping assembly (6) comprises a plurality of connecting rods (61) which are oppositely arranged, the connecting rods (61) are fixedly connected with adjacent upright posts (11), the connecting rods (61) are sleeved with a scraping plate (62) which can scrape the upper surface of the receiving block (2) in a sliding manner, and one side of the scraping plate (62) is further provided with an electric push rod (64) used for driving the scraping plate (62) to move.

8. A pressure testing machine according to claim 7, wherein: one side of the scraping plate (62) is also provided with a hairbrush plate (65) for cleaning the upper surface of the scraping plate (62).