Testing machine for pressure detection

Abstract

The invention discloses a testing machine for pressure detection, and relates to the technical field of pressure detection, and the testing machine comprises a pressure testing box body, the lower side of the interior of the pressure testing box body is provided with a material collecting groove, the middle parts of the left and right ends of the pressure testing box body are provided with adjusting rods, and the outer sides of the upper ends of the adjusting rods are provided with punching mechanisms. The problems that when pressure detection is carried out on concrete, the concrete is likely to be broken due to too large pressure, concrete blocks splash out in the breaking process, personal injuries are caused to workers, under the action of the pressure, the concrete blocks are difficult to lift and take after detection, meanwhile, the concrete needs to be poured and formed before concrete detection, and the working efficiency is high are solved. The problems that due to different molds, the shapes of concrete blocks are different, an existing testing machine is difficult to position and clamp according to the actual size, after the concrete blocks are broken, centralized guiding and collecting are difficult, and parts are prone to being blocked and damaged are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure detection, and particularly relates to a testing machine for pressure detection. Background Art

[0002] With the improvement of construction technology level, the country has accelerated the promotion of infrastructure project construction. As concrete is increasingly used in the construction market, and at the same time, the requirements for project quality and protection are becoming more and more strict. In construction projects, before concrete is put into use, it is necessary to conduct pressure tests on it to detect the compressive strength and firmness of the concrete. Therefore, a pressure detection testing machine is required.

[0003] Compared with the existing testing machines, there are still the following defects: when conducting pressure detection on concrete, it may break due to excessive pressure. When it breaks, the concrete blocks will fly out, which may cause personal injury to the staff. Moreover, under the action of pressure, it is difficult to lift and take out the concrete blocks after detection. At the same time, before conducting concrete detection, it is necessary to pour and form the concrete. Due to different molds, the shapes of the concrete blocks will be different. It is difficult for the existing testing machines to position and clamp according to the actual size. And after the concrete blocks break, it is difficult to centrally guide and collect them, which is likely to cause blockage and damage of components. Summary of the Invention

[0004] The purpose of the present invention is to provide a testing machine for pressure detection, and solve the following technical problems: when conducting pressure detection on concrete, it may break due to excessive pressure. When it breaks, the concrete blocks will fly out, which may cause personal injury to the staff. Moreover, under the action of pressure, it is difficult to lift and take out the concrete blocks after detection. At the same time, before conducting concrete detection, it is necessary to pour and form the concrete. Due to different molds, the shapes of the concrete blocks will be different. It is difficult for the existing testing machines to position and clamp according to the actual size. And after the concrete blocks break, it is difficult to centrally guide and collect them, which is likely to cause blockage and damage of components.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A testing machine for pressure detection, comprising: a pressure testing box body, an aggregate trough is provided on the lower side inside the pressure testing box body, adjusting rods are provided in the middle of the left and right ends of the pressure testing box body, a stamping mechanism is provided on the outer side of the upper end of the adjusting rod, a rubber seal member that is snap-fitted and docked with the pressure testing box body is provided at the edge of the lower end of the stamping mechanism, and an extrusion plate for applying a force is provided at the lower end of the stamping mechanism;

[0007] A clamping mechanism for positioning the concrete blocks is provided on the outer side of the middle of the adjusting rod, and auxiliary hydraulic rods are provided on the left and right sides at the lower end of the clamping mechanism.

[0008] As a further solution of the present invention: sealing blocks that are engaged and docked with the aggregate chute are provided at both the front and rear ends of the pressure test box body, and the aggregate chute is arranged in an inclined manner at the lower side inside the pressure test box body for guiding the broken materials to be discharged.

[0009] As a further solution of the present invention: the lower end and the middle end of the adjusting rod are both circular convex smooth surfaces, and the adjusting rod is connected to the clamping mechanism and the stamping mechanism respectively in a threaded manner;

[0010] Fixed limit rods connected to the clamping mechanism and the stamping mechanism are provided on both the front and rear sides of the adjusting rod for stable lifting movement of the clamping mechanism and the stamping mechanism.

[0011] As a further solution of the present invention: an adjusting disk is provided at the lower side of the middle part inside the clamping mechanism, four groups of adjusting roller wheels are equidistantly distributed on the outer side of the upper surface of the adjusting disk, and a reciprocating lead screw rotatably connected to the clamping mechanism is provided at the outer end of the adjusting roller wheel;

[0012] An activity support frame is provided on the outer side of the reciprocating lead screw, a convex structure is provided on the outer side of the lower end of the activity support frame, and a limiting groove body located inside the clamping mechanism is provided on the outer side of the convex structure;

[0013] A first discharge chute located inside the clamping mechanism is provided on the outer side of the reciprocating lead screw, and second discharge chutes are provided at the four inner corners of the clamping mechanism.

[0014] As a further solution of the present invention: the adjusting disk and the adjusting roller wheels are connected in a meshing manner, the adjusting roller wheels are fixedly connected to the reciprocating lead screw and are rotatably structured on the clamping mechanism through built-in bearings;

[0015] The reciprocating lead screw and the activity support frame are connected in a threaded manner, and the activity support frame forms a lateral sliding structure inside the clamping mechanism through the limiting groove body.

[0016] As a further solution of the present invention: a return spring is provided inside the upper end of the activity support frame, a support activity rod connected to the activity support frame is provided at the outer end of the return spring, and a clamping panel is provided at the outer end of the support activity rod;

[0017] Rubber anti-slip blocks are provided on the inner surface of the clamping panel, and reinforcing angle members connected to the support activity rod are provided at the outer end of the clamping panel.

[0018] As a further solution of the present invention: a brush for cleaning debris is provided on the lower surface of the clamping panel, the clamping panel and the brush are connected in an adhesive manner, and the lower surface of the brush is in a fitting arrangement with the upper surface of the clamping mechanism.

[0019] As a further solution of the present invention: the clamping panel and the rubber anti-slip block are adhesively connected, the reinforcing corner pieces are arranged in four equal parts with respect to the center point of the clamping panel and are fixedly connected to the supporting movable rod, and the reinforcing corner pieces are integrally arranged in an inclined manner;

[0020] The supporting movable rod forms an elastic telescopic structure in the movable support frame through a return spring, and four sets of relief grooves for facilitating the sliding of the reinforcing corner pieces are arranged on the inner side of the upper end of the movable support frame.

[0021] As a further solution of the present invention: a hydraulic telescopic rod is installed in the middle of the lower end of the stamping mechanism, a resisting vertical rod with a certain gap from the movable support frame is arranged on the outer side of the lower surface of the stamping mechanism, and a dust removal component is arranged inside the stamping mechanism;

[0022] A blower is installed in the middle of the inner side of the dust removal component, a first filter plate is arranged on the inner side of the lower end of the dust removal component, and a second filter plate is arranged above the first filter plate.

[0023] As a further solution of the present invention: the upper end of the extrusion plate is connected to the connecting bottom rod through a detachable structure, pressure sensors are installed on the upper sides of the left and right ends of the extrusion plate, and the stamping mechanism is connected to the pressure test box body in a clamping manner through an adhesively connected rubber seal;

[0024] A limiting hole groove is arranged on the outer side of the upper end of the dust removal component, the inner side of the dust removal component is arranged to be recessed and inclined towards the middle for guiding the air flow, and both the first filter plate and the second filter plate are adhesively connected to the dust removal component.

[0025] Advantages of the present invention:

[0026] 1. By the threaded lifting movement of both the clamping mechanism and the stamping mechanism on the adjusting rod, after the stamping mechanism is clamped and docked with the pressure test box body, the protection effect can be enhanced, avoiding the rupture of the concrete block during the pressure test and preventing the flying debris from causing harm to the staff;

[0027] In addition, circular convex smooth surfaces are arranged at the lower end and the middle of the adjusting rod, which can keep the clamping mechanism in a horizontal state in place after reaching a certain position, enabling the stamping mechanism to be adjusted up and down again. When the gap between the clamping mechanism and the stamping mechanism is large, it is convenient for the taking, placing and cleaning of the concrete block.

[0028] 2. By arranging the movable support frame in four equal parts around the center point of the clamping mechanism, it is possible to use the clamping panel to firmly position and clamp the concrete block, and the anti-slip and wear-resistant effect is increased under the action of the rubber anti-slip block. With the elastic telescopic movement of the support movable rod in the movable support frame through the return spring, concrete blocks of different sizes can be positioned and clamped;

[0029] In addition, a brush is adhesively connected to the lower surface of the rubber anti-slip block, which can synchronously clean a small amount of accumulated debris and guide it into the aggregate tank through the first discharge chute for unified collection, avoiding damage to the reciprocating lead screw caused by the debris;

[0030] Furthermore, a dust removal component is arranged inside the stamping mechanism, which can adsorb and filter the generated dust, so that the filtered gas can be directly discharged outward, leaving the dust for subsequent unified treatment, avoiding direct discharge of dust and polluting the surrounding working environment, and even causing personal injury to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] Figure 1 is the overall structural schematic diagram of the connection between the pressure test box body and the aggregate tank of the present invention;

[0033] Figure 2 is the front view sectional structural schematic diagram of the connection between the adjusting rod and the stamping mechanism of the present invention;

[0034] Figure 3 is the Figure 2 enlarged structural schematic diagram at A in the present invention;

[0035] Figure 4 is the front view sectional structural schematic diagram of the connection between the adjusting rod and the clamping mechanism of the present invention;

[0036] Figure 5 is the side view sectional structural schematic diagram of the connection between the pressure test box body and the stamping mechanism of the present invention;

[0037] Figure 6 is the overall structural schematic diagram of the connection between the movable support frame and the support movable rod of the present invention;

[0038] Figure 7 is the top view sectional structural schematic diagram of the connection between the adjusting disc and the adjusting roller of the present invention;

[0039] Figure 8 is the overall structural schematic diagram of the connection between the adjusting rod and the clamping mechanism of the present invention;

[0040] Figure 9 is the overall structural schematic diagram of the connection between the clamping mechanism and the fixed limit rod of the present invention;

[0041] Figure 10 It is a front cross-sectional structural schematic diagram of the dust removal assembly of the present invention connected to the second filter plate;

[0042] Figure 11 It is a schematic diagram of the overall structure of the dust removal component connected to the second filter plate of the present invention.

[0043] In the figure: 1. Pressure test box; 2. Aggregate trough; 3. Blocking block; 4. Synchronous motor; 5. Adjustment rod; 6. Clamping mechanism; 601. Servo motor; 602. Adjustment plate; 603. Adjustment roller; 604. Reciprocating screw rod; 605. Movable support frame; 6051. Return spring; 6052. Support movable rod; 6053. Clamping panel; 6054. Rubber anti-sliding block; 6055. Reinforcement corner piece; 6056. Make way slot; 6057. Brush ; 606, limit slot body; 607, first discharge slot; 608, second discharge slot; 7, stamping mechanism; 701, hydraulic telescopic rod; 702, connecting bottom rod; 703, extrusion plate; 704, pressure sensor; 705, rubber seal; 706, vertical rod; 707, dust removal assembly; 7071, blower; 7072, exhaust pipe; 7073, first filter plate; 7074, second filter plate; 8, fixed limit rod; 9, auxiliary hydraulic rod. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figures 1-11 As shown, the present invention is a testing machine for pressure detection.

[0046] Embodiment 1

[0047] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 , Figures 7-9 The present invention provides a technical solution: a pressure test box 1, a collection tank 2 is provided on the lower side of the inner part of the pressure test box 1, an adjusting rod 5 is provided in the middle of the left and right ends of the pressure test box 1, a clamping mechanism 6 for positioning the concrete block is provided on the outer side of the middle part of the adjusting rod 5, and auxiliary hydraulic rods 9 are provided on the left and right sides of the lower end of the clamping mechanism 6;

[0048] The lower end and the middle end of the adjusting rod 5 are both circular convex smooth surfaces. The adjusting rod 5 is connected to the clamping mechanism 6 and the stamping mechanism 7 by means of threads respectively. Fixed limiting rods 8 connected to the clamping mechanism 6 and the stamping mechanism 7 are arranged on both the front and rear sides of the adjusting rod 5 to perform stable lifting movements on the clamping mechanism 6 and the stamping mechanism 7.

[0049] Specifically, since both the clamping mechanism 6 and the stamping mechanism 7 are connected to the adjusting rod 5 by means of threads, when the synchronous motor 4 is turned on to rotate the adjusting rod 5, the clamping mechanism 6 and the stamping mechanism 7 can be driven to perform synchronous lifting movements. When the clamping mechanism 6 and the stamping mechanism 7 synchronously descend to a state flush with the upper end of the pressure test box body 1, the rubber seal 705 adhesively connected to the lower edge of the stamping mechanism 7 will be engaged and butted with the pressure test box body 1 to improve the sealing effect, avoid subsequent splashing of dust and other impurities, and also achieve a protective effect to prevent the situation where debris splashes and causes injury to the staff. With the lower end and the middle part of the adjusting rod 5 being provided with circular convex smooth surfaces, when the clamping mechanism 6 rises to the middle smooth surface of the adjusting rod 5, the whole clamping mechanism 6 is in a state of horizontal sliding and cannot rise. At the same time, when the synchronous motor 4 is turned on again to rotate the adjusting rod 5, the stamping mechanism 7 can be driven to rise synchronously again, which is convenient for subsequent taking or placing of the concrete block in the clamping mechanism 6. On the contrary, when the clamping mechanism 6 is at the circular convex smooth surface at the lower end of the adjusting rod 5, the stamping mechanism 7 can continue to descend, and the rubber seal 705 is engaged and butted with the test box body 1.

[0050] Embodiment 2

[0051] Please refer to Figures 1-8In this invention, a technical solution is provided: there is an adjustment disk 602 provided on the lower side of the middle end inside the clamping mechanism 6. Four groups of adjustment rollers 603 are equidistantly distributed on the outer side of the upper surface of the adjustment disk 602. A reciprocating lead screw 604 rotatably connected to the clamping mechanism 6 is provided at the outer end of the adjustment roller 603; an active support frame 605 is provided on the outer side of the reciprocating lead screw 604. A convex structure is provided on the outer side of the lower end of the active support frame 605, and a limiting groove body 606 located inside the clamping mechanism 6 is provided on the outer side of the convex structure; a first discharge groove 607 located inside the clamping mechanism 6 is provided on the outer side of the reciprocating lead screw 604, and second discharge grooves 608 are provided at the four inner corners of the clamping mechanism 6; the adjustment disk 602 and the adjustment roller 603 are connected in a meshing manner, the adjustment roller 603 and the reciprocating lead screw 604 are fixedly connected and are rotatably structured on the clamping mechanism 6 through an internal bearing; the reciprocating lead screw 604 and the active support frame 605 are connected in a threaded manner, and the active support frame 605 forms a lateral sliding structure inside the clamping mechanism 6 through the limiting groove body 606; a return spring 6051 is provided on the inner side of the upper end of the active support frame 605. A support active rod 6052 connected to the active support frame 605 is provided at the outer end of the return spring 6051, and a clamping panel 6053 is provided at the outer end of the support active rod 6052; a rubber anti-slip block 6054 is provided on the inner surface of the clamping panel 6053, and a reinforcing angle member 6055 connected to the support active rod 6052 is provided at the outer end of the clamping panel 6053.

[0052] A brush 6057 for cleaning debris is provided on the lower surface of the clamping panel 6053. The clamping panel 6053 and the brush 6057 are connected in an adhesive manner, and the lower surface of the brush 6057 is in a fitting setting with the upper surface of the clamping mechanism 6; the clamping panel 6053 and the rubber anti-slip block 6054 are adhesively connected. The reinforcing angle members 6055 are equally divided about the center point of the clamping panel 6053 and are fixedly connected to the support active rod 6052, and the reinforcing angle members 6055 are integrally arranged in an inclined manner; the support active rod 6052 forms an elastic telescopic structure inside the active support frame 605 through the return spring 6051, and four groups of relief grooves 6056 facilitating the sliding of the reinforcing angle members 6055 are provided on the inner side of the upper end of the active support frame 605.

[0053] Specifically, in the above-mentioned first embodiment, when the entire clamping mechanism 6 rises to the upper opening of the pressure test box body 1, the servo motor 601 is turned on to rotate the adjustment disk 602, which can cause the adjustment rollers 603 meshingly connected to the adjustment disk 602 to rotate synchronously. At this time, the rotation directions of the adjustment rollers 603 equally divided about the adjustment disk 602 are opposite to each other, so as to drive the active support frame 605 threadedly connected to the reciprocating lead screw 604 to move horizontally left and right inside the clamping mechanism 6 through the limiting groove body 606, so that the entire equally divided active support frame 605 can move synchronously in an opposing manner;

[0054] At this time, the supporting movable rod 6052 forms an elastic telescopic structure in the movable support frame 605 through the reset spring 6051, which can enable the rubber anti-sliding block 6054 bonded to the inner surface of the clamping panel 6053 to position and clamp the concrete block, and can clamp concrete blocks of different sizes under the elastic action of the reset spring 6051 to avoid shaking and displacement. Since the reinforced corner piece 6055 is divided into four parts about the center point of the supporting movable rod 6052 and is fixedly connected to the clamping panel 6053, the supporting movable rod 6052 can be more stable when moving laterally, and can be tightly compressed under the action of the give way groove 6056 to achieve a positioning effect.

[0055] Embodiment 3

[0056] See also Figures 1-5 , Figure 10 and Figure 11 The present invention provides a technical solution: a stamping mechanism 7 is arranged on the outer side of the upper end of the adjusting rod 5, a rubber seal 705 which is engaged with the pressure test box 1 is arranged at the lower edge of the stamping mechanism 7, and an extrusion plate 703 for applying a force is arranged at the lower end of the stamping mechanism 7;

[0057] A hydraulic telescopic rod 701 is installed in the middle of the lower end of the stamping mechanism 7, and a vertical rod 706 with a certain gap between the lower surface of the stamping mechanism 7 and the movable support frame 605 is arranged on the outer side, and a dust removal component 707 is arranged on the inner side of the stamping mechanism 7; a blower 7071 is installed in the middle of the inner side of the dust removal component 707, and a first filter plate 7073 is arranged on the inner side of the lower end of the dust removal component 707, and a second filter plate 7074 is arranged above the first filter plate 7073; the upper end of the extrusion plate 703 is connected to the connecting bottom rod 702 through a detachable structure, and pressure sensors 704 are installed on the upper sides of the left and right ends of the extrusion plate 703. The stamping mechanism 7 is connected to the pressure test box 1 by a rubber seal 705 connected by bonding in a snap-fit ​​manner;

[0058] A limiting hole groove is provided on the outer side of the upper end of the dust removal component 707, and the inner side of the dust removal component 707 is inclined and recessed toward the middle to guide the airflow. The first filter plate 7073 and the second filter plate 7074 are both connected to the dust removal component 707 by bonding.

[0059] Specifically, in combination with the first embodiment and the second embodiment, after the synchronous lifting process, the clamping mechanism 6 and the punching mechanism 7 are in a sealed state in the pressure test box 1 as a whole. At this time, the hydraulic telescopic rod 701 is opened to drive the extrusion plate 703 to descend, so that the concrete block can be pressure tested, and the data can be recorded through the pressure sensor 704 for later viewing. As the pressure is continuously applied, the concrete block may be broken, and when the concrete block is broken, debris and dust will be generated. By opening the blower 7071 installed on the inner side of the dust removal component 707, the dust can be filtered through the first filter plate 7073 and then sucked in. Then, after being filtered again by the second filter plate 7074, it is discharged from the exhaust pipe 7072, so that dust and other impurities are concentrated on the lower surfaces of the first filter plate 7073 and the second filter plate 7074, which is convenient for centralized processing in the later stage to achieve the dust removal effect.

[0060] Since the left and right sides of the lower end of the stamping mechanism 7 are fixedly installed with abutment vertical rods 706, during the descending process, when the clamping mechanism 6 is on the smooth surface of the circular protrusion at the lower end of the adjusting rod 5, the auxiliary hydraulic rod 9 is opened to lift the edge of the clamping mechanism 6, so that the clamping mechanism 6 is connected to the threaded part of the adjusting rod 5, and the synchronous motor 4 can be turned on to drive the adjusting rod 5 to drive the clamping mechanism 6 to move up and down. When the clamping mechanism 6 rises, a certain gap is left between the stamping mechanism 7 as a whole and the clamping mechanism 6 through the pressure of the abutment vertical rod 706, so that they rise and fall synchronously.

[0061] Embodiment 4

[0062] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 The present invention provides a technical solution: both the front and rear ends of the pressure test box 1 are provided with blocking blocks 3 which are engaged with the aggregate trough 2; the aggregate trough 2 is located at the lower inner side of the pressure test box 1 and is inclined for guiding the discharge of crushed materials.

[0063] Specifically, in combination with Example 2 and Example 3, when the concrete block is ruptured due to the pressure test, the generated debris and other impurities will fall directly into the aggregate trough 2 through the second discharge trough 608, and a small amount of residual debris will accumulate in the first discharge trough 607. However, since the lower surface of the clamping panel 6053 is bonded with a brush 6057, and the lower surface of the brush 6057 is fitted with the upper surface of the clamping mechanism 6, the lateral size of the brush 6057 corresponds to the upper and lower sides of the first discharge trough 607. When the movable support frame 605 moves laterally as a whole, the small amount of residual debris can be cleaned and fall into the aggregate trough 2 through the first discharge trough 607. Finally, the blocking block 3 is opened to collect and process the debris and other impurities in a unified manner with the help of a long-pole tool such as a broom.

[0064] The above has described in detail an embodiment of the present invention, but the above content is only a preferred embodiment of the present invention and cannot be considered as defining the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A pressure testing machine, characterized in that: The pressure test box (1) comprises a pressure test box (1), wherein a collecting trough (2) is provided on the lower side of the interior of the pressure test box (1), an adjusting rod (5) is provided in the middle of both left and right ends of the pressure test box (1), a clamping mechanism (6) for positioning a concrete block is provided on the outer side of the middle of the adjusting rod (5), and auxiliary hydraulic rods (9) are provided on both left and right sides of the lower end of the clamping mechanism (6); A punching mechanism (7) is arranged on the outer side of the upper end of the adjusting rod (5); a rubber sealing member (705) is arranged at the lower edge of the punching mechanism (7) for engaging with the pressure test box (1); and a pressing plate (703) for applying a force is arranged at the lower end of the punching mechanism (7).

2. A pressure testing machine according to claim 1, characterized in that: Both the front and rear ends of the pressure test box (1) are provided with blocking blocks (3) that engage with the aggregate trough (2); the aggregate trough (2) is located at the lower inner side of the pressure test box (1) and is arranged in an inclined manner for guiding the discharge of crushed materials.

3. A pressure testing machine according to claim 1, characterized in that: The lower end and the middle end of the adjusting rod (5) are both circular raised smooth surfaces, and the adjusting rod (5) is respectively connected to the clamping mechanism (6) and the punching mechanism (7) in a threaded manner; Fixed limit rods (8) connected to the clamping mechanism (6) and the punching mechanism (7) are provided on both the front and rear sides of the adjusting rod (5) for performing stable lifting and lowering movements on the clamping mechanism (6) and the punching mechanism (7).

4. A pressure testing machine according to claim 3, characterized in that: An adjusting disk (602) is arranged at the lower side of the inner middle end of the clamping mechanism (6), four groups of adjusting rollers (603) are evenly distributed on the outer side of the upper surface of the adjusting disk (602), and a reciprocating screw rod (604) rotatably connected to the clamping mechanism (6) is arranged at the outer end of the adjusting roller (603); A movable support frame (605) is arranged on the outer side of the reciprocating screw rod (604), a convex structure is arranged on the outer side of the lower end of the movable support frame (605), and a limiting groove body (606) located on the inner side of the clamping mechanism (6) is arranged on the outer side of the convex structure; A first discharge groove (607) located inside the clamping mechanism (6) is provided on the outer side of the reciprocating screw rod (604), and second discharge grooves (608) are provided at the four inner corners of the clamping mechanism (6).

5. A pressure testing machine according to claim 4, characterized in that: The adjusting disk (602) and the adjusting roller (603) are connected in a meshing manner, and the adjusting roller (603) and the reciprocating screw rod (604) are fixedly connected and are in a rotating structure on the clamping mechanism (6) via a built-in bearing; The reciprocating screw rod (604) and the movable support frame (605) are connected in a threaded manner, and the movable support frame (605) forms a transverse sliding structure in the clamping mechanism (6) through a limiting groove body (606).

6. A pressure testing machine according to claim 4, characterized in that: A return spring (6051) is arranged on the inner side of the upper end of the movable support frame (605), a support movable rod (6052) connected to the movable support frame (605) is arranged on the outer end of the return spring (6051), and a clamping panel (6053) is arranged on the outer end of the support movable rod (6052); The inner surface of the clamping panel (6053) is provided with a rubber anti-sliding block (6054), and the outer end of the clamping panel (6053) is provided with a reinforcing angle piece (6055) connected to the supporting movable rod (6052).

7. A pressure testing machine according to claim 6, characterized in that: A brush (6057) for cleaning debris is disposed on the lower surface of the clamping panel (6053); the clamping panel (6053) and the brush (6057) are connected by bonding; and the lower surface of the brush (6057) is fitted to the upper surface of the clamping mechanism (6).

8. A pressure testing machine according to claim 6, characterized in that: The clamping panel (6053) and the rubber anti-sliding block (6054) are bonded and connected, the reinforcing corner piece (6055) is arranged in four equal parts about the center point of the clamping panel (6053) and is fixedly connected to the supporting movable rod (6052), and the reinforcing corner piece (6055) is arranged in an inclined manner as a whole; The supporting movable rod (6052) forms an elastic telescopic structure in the movable supporting frame (605) through a return spring (6051), and the inner side of the upper end of the movable supporting frame (6055) is provided with four groups of clearance grooves (6056) for facilitating the sliding of the reinforcement angle piece (6055).

9. A pressure testing machine according to claim 1, characterized in that: A hydraulic telescopic rod (701) is installed in the middle of the lower end of the punching mechanism (7), a vertical abutment rod (706) with a certain gap between the punching mechanism (7) and the movable support frame (605) is arranged on the outer side of the lower surface of the punching mechanism (7), and a dust removal component (707) is arranged on the inner side of the punching mechanism (7); A blower (7071) is installed in the middle of the inner side of the dust removal component (707), a first filter plate (7073) is arranged on the inner side of the lower end of the dust removal component (707), and a second filter plate (7074) is arranged above the first filter plate (7073).

10. A pressure testing machine according to claim 9, characterized in that: The upper end of the extrusion plate (703) is connected to a connecting bottom rod (702) via a detachable structure, pressure sensors (704) are installed on the upper sides of both left and right ends of the extrusion plate (703), and the stamping mechanism (7) is connected to the pressure test box (1) by a snap-fitting manner via a rubber seal (705) connected by bonding; A limiting hole groove is provided on the outer side of the upper end of the dust removal component (707), and the inner side of the dust removal component (707) is inclined and recessed toward the middle to guide the airflow. The first filter plate (7073) and the second filter plate (7074) are both connected to the dust removal component (707) by bonding.

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