Press machine for concrete testing
By introducing sliding components and sliding door structures into the concrete press, the problem of concrete precast block cracking endangering safety has been solved, and safety detection and automatic shutdown protection have been realized.
Patent Information
- Application Number
- CN202411538321.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the testing process, existing concrete pressure testing machines are prone to causing precast concrete blocks to break into fragments and scatter, endangering the safety of workers, and lack effective protective structures.
A concrete testing press was designed, which adopts a sliding component and a sliding door structure. During testing, the sliding component moves the sliding door closer to the inner side of the guard plate to form a closed space. The press can only operate after the sliding component touches the limit switch, ensuring safety.
It effectively prevents concrete fragments from scattering, improves safety during the testing process, ensures that staff are not injured, and provides automatic shutdown protection.
Smart Images
Figure CN119290583A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of concrete testing, and in particular to a press for concrete testing. Background Art
[0002] The concrete testing press, also known as the concrete pressure testing machine or concrete pressure testing machine, is an important device for testing the compressive strength of concrete. The concrete pressure testing machine is an important testing equipment that can accurately measure the compressive strength of concrete and provide an important basis for concrete quality control and engineering design. When using the pressure testing machine, you must strictly follow the operating steps, pay attention to safety matters, and ensure the accuracy and reliability of the test results.
[0003] Chinese patent publication number CN 207379815 U discloses a concrete pressure testing machine, which belongs to the technical field of testing devices and solves the problem that when the temperature in the box is higher than 40°C, the staff is unaware and does not take any cooling measures, thereby affecting the service life of the concrete pressure testing machine; the key points of the technical solution are: a protective door is pivotally connected to the box, and the inner wall of the protective door is provided with a temperature detection device for detecting the box temperature and converting it into a temperature detection signal, and also includes a comparison device, a trigger device, and an indication device coupled to the trigger device to receive the trigger signal and respond to the trigger signal to implement an indication;
[0004] The above-mentioned concrete pressure testing machine places the precast concrete blocks on the lower platform, and then the hydraulic cylinder lifts the lower platform, and cooperates with the fixed upper platform to squeeze the precast concrete blocks, thereby performing a pressure test on the precast concrete blocks; however, during the squeezing process, as the squeezing force on the precast concrete blocks increases, the potential energy accumulated inside them will become larger and larger, until the precast concrete blocks are subjected to the pressure limit, at which time the precast concrete blocks will crack, and at the same time, the accumulated potential energy will explode, causing the precast concrete blocks to split into a large number of fragments, and the fragments will collapse everywhere; there is no corresponding blocking structure at the upper and lower platforms of the above-mentioned concrete pressure testing machine, and the collapsed precast concrete blocks will scatter around the concrete pressure testing machine, which will harm the staff around the concrete pressure testing machine; in addition, since the above-mentioned concrete pressure testing machine has no isolation structure, when the staff accidentally come into close contact with the concrete pressure testing machine during operation, it will also cause harm to the staff. Summary of the invention
[0005] Technical issues to be solved
[0006] The purpose of the present invention is to overcome the shortcomings of the prior art, meet the actual needs, and provide a concrete testing press. In the idle state, the sliding assembly for carrying the concrete prefabricated blocks is located on the outside of the guard plate. During the inspection, the sliding assembly moves into the guard plate. When the sliding assembly moves to the inside of the guard plate, it simultaneously drives two sliding doors to close and fit together. The sliding doors can prevent concrete fragments from collapsing to the outside. The press can only operate after the sliding assembly moves to the travel switch and starts the travel switch connection circuit, thereby ensuring the safety of the staff around the press to solve the above technical problems.
[0007] Technical Solution
[0008] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:
[0009] A concrete testing press comprises a sliding assembly for placing concrete prefabricated blocks, the sliding assembly is in transmission connection with a platform assembly, one end of the platform assembly is located inside a guard plate, one side of the guard plate is movably connected with two sliding doors, and both sliding doors are in transmission connection with the sliding assembly; a travel switch is arranged inside the guard plate, and the travel switch is mounted on the platform assembly; a pressing assembly is arranged in the middle of the top of the guard plate, and a control console is arranged on one side of the guard plate;
[0010] The sliding assembly includes a slide, the bottom of which is slidably connected to two slide rails, and a placement platform is provided in the middle above the slide; the placement platform includes a platform body, the bottom of which is fixedly connected to a bottom rod, and the bottom of the bottom rod is fixedly connected to an arc-shaped member; four auxiliary frames are provided on the top of the platform body, and the four auxiliary frames are all L-shaped and distributed in a rectangular shape; sleeves are provided at the four corners of the bottom of the platform body;
[0011] The slide table includes a base plate, the four corners of the top of the base plate are fixedly connected with springs, the upper ends of the four springs are respectively located on the inner sides of four sleeves, and the tops of the four springs are fixedly connected to the bottom of the table body; a plurality of sliders are symmetrically fixedly connected to the bottom of the base plate, and the plurality of sliders are respectively slidably connected to two slide rails; both ends of the lower end of the base plate are rotatably connected with rotating rods; a through hole for the bottom rod to pass through is provided on the base plate, and the arc-shaped member is located below the base plate.
[0012] The guard plate includes two side guard plates, and the two side guard plates are respectively located on both sides of the platform body; a convex plate is integrally provided on the top of the two side guard plates close to the platform body, and the two convex plates are provided with through sliding grooves; the two sliding doors have the same structure, and the sliding door includes a door panel, and a connecting piece is provided at the bottom of the door panel away from the platform body, and the two connecting pieces are respectively rotatably connected to the ends of the two rotating rods away from the bottom plate; convex blocks are integrally provided on both sides of the top of the two door panels, and the two door panels are slidably connected to the sliding grooves of the two convex plates through their respective convex blocks.
[0013] As a further technical solution of the present invention, both ends of the top of the bottom plate are fixedly connected with side plates, and the tops of the two side plates are respectively fixedly connected to the two ends of the bottom of the top frame; a rectangular through groove for the platform body to pass through is provided in the middle of the top frame; a support plate is provided between the bottom plate and the top frame, the size of the support plate is larger than the size of the platform body, and the support plate is provided with a through groove for the bottom rod to pass through; a plurality of support columns are evenly fixedly connected to the bottom of the support plate, and the bottoms of the plurality of support columns are fixedly connected to the top of the bottom plate; arc-shaped grooves for the springs to pass through are provided at the four corners of the support plate; an L-shaped plate is fixedly connected to the middle of the bottom of the bottom plate, and the side of the L-shaped plate away from the bottom plate is fixedly connected to the clamping member.
[0014] As a further technical solution of the present invention, the platform assembly includes a belt, which is fixedly connected to the clamping member; the inner sides of the two ends of the belt are respectively connected to the driven pulley and the driving pulley, and the middle of the driven pulley and the driving pulley are fixedly connected with a transmission shaft; a cross plate is provided under the belt, the cross plate is located between the two side guard plates, and the travel switch is installed on the top of the cross plate, the travel switch is located on one side of the belt and the travel switch corresponds to the position of the arc-shaped member; the ends of the two transmission shafts are rotatably connected to the cross plate, and one of the transmission shafts extends to the bottom of the cross plate and is fixedly connected to the output shaft of the motor; two support rails are symmetrically fixedly connected to the top of the cross plate, and the tops of the two support rails are respectively fixedly connected to the bottoms of the two slide rails; a plurality of connecting sleeves are fixedly connected to both sides of the cross plate.
[0015] As a further technical solution of the present invention, the two side guard plates are fixedly connected to the sealing plate on one side away from the platform body, and the tops of the two side guard plates are fixedly connected to the bottom of the top plate; the pressing assembly includes a cylinder, which is fixedly connected to the middle of the top of the top plate, and a round hole is provided in the middle of the top plate for the cylinder telescopic rod to pass through; the cylinder telescopic rod is fixedly connected to the middle of the top of the positioning sleeve, and the positioning sleeve is fixedly connected to the middle of the bottom of the top plate; the bottom of the positioning sleeve is fixedly connected to the middle of the top of the pressure block, and the position of the pressure block corresponds to the position of the platform body.
[0016] As a further technical solution of the present invention, the horizontal plate is fixedly connected to the vertical rod assembly, and the lower end of the vertical rod assembly is fixedly connected to the base; the base includes a seat body, which is rectangular and the length of the seat body is the same as the length of the horizontal plate; a vertical plate is fixedly connected to the top of one end of the seat body close to the motor, and the motor is fixedly connected to the vertical plate by bolts; a support frame is provided on the side of the vertical plate away from the motor, one end of the support frame is fixedly connected to the vertical plate, and the other end is fixedly connected to the top of the seat body.
[0017] As a further technical solution of the present invention, the vertical rod assembly includes a front end vertical rod group, a rear end vertical rod group and a middle end vertical rod group, and the front end vertical rod group includes two front end vertical rods, the rear end vertical rod group includes two rear end vertical rods, and the middle end vertical rod group includes two middle end vertical rods; the two front end vertical rods are respectively fixedly connected to the connecting sleeves on both sides of the end of the horizontal plate close to the placing table, the two rear end vertical rods are respectively fixedly connected to the connecting sleeves on both sides of the end of the horizontal plate away from the placing table, and the two middle end vertical rods are respectively fixedly connected to the connecting sleeves on both sides of the middle end of the horizontal plate; the middle end vertical rod has the same length as the rear end vertical rod, and the length of the front end vertical rod is smaller than that of the rear end vertical rod.
[0018] As a further technical solution of the present invention, the lower ends of the two front end vertical rods, the rear end vertical rod and the middle end vertical rod are fixedly connected to the seat body; the two middle end vertical rods are fixedly connected with rings, and the two rings are fixedly connected with positioning parts on one side close to the door panel; the lower ends of the two door panels are provided with through grooves, and the two positioning parts are respectively located in the two through grooves, and the door panels are slidably connected to the positioning parts through the through grooves.
[0019] Beneficial effects:
[0020] A. In the present invention, in an idle state, the sliding assembly is located at one end of the platform assembly away from the guard plate, that is, located on the outside of the guard plate; when it is necessary to perform pressure testing on the precast concrete block, the precast concrete block is placed on the platform body, and the platform body descends under the action of the weight of the precast concrete block, and simultaneously drives the bottom rod and the arc-shaped member to descend; the four auxiliary frames on the top of the platform body play a role in positioning the precast concrete block, and the four auxiliary frames are respectively located at the four corners of the precast concrete block, which can prevent the precast concrete block from shaking or shifting, ensure that the precast concrete block is always located in the middle of the platform body, and prevent the situation that the concrete precast block is unevenly stressed at various positions when the downward pressure assembly squeezes the precast concrete block; the platform body moves downward until it fits with the support plate and no longer moves, and the support plate plays a role in supporting the platform body and the precast concrete block.
[0021] B. In the present invention, after the concrete precast blocks are placed, the motor drives the belt to rotate by controlling the rotation of the active pulley. During the rotation of the belt, the clamping member drives the bottom plate to move in the direction of the guard plate, and the bottom plate simultaneously drives the platform, the bottom rod and the arc-shaped member to move; the slider cooperates with the slide rail to make the bottom plate move more easily and smoothly, reduce the wear of the belt, and at the same time ensure the stability of the bottom plate to prevent the bottom plate from shaking or shifting during movement.
[0022] C. In the present invention, during the movement of the bottom plate, the two door panels are driven to move by the two rotating rods. When the bottom plate approaches the door panel, the rotating rod will push the door panel to move away from the bottom plate. The two door panels move away from each other, which can provide sufficient space for the bottom plate to ensure that the bottom plate can move smoothly to the inside of the guard plate. After the bottom plate enters the guard plate, it continues to move and move away from the door panel. At this time, the rotating rod will pull the door panel to bring the two door panels closer to each other until the two door panels fit each other and the bottom plate moves to the bottom of the pressing assembly; the convex plate cooperates with the side guard plate to support the door panel to prevent the door panel from falling off or tilting. At the same time, the sliding groove of the convex plate can also allow the door panel to move normally. In addition, the positioning member also supports the door panel, and when the door panel moves, the through groove of the door panel moves along the positioning member. The positioning member can also limit the range of movement of the door panel to prevent the door panel from moving too far and separating from the convex plate.
[0023] D. In the present invention, after the bottom plate moves to the bottom of the pressing assembly, the platform and the precast concrete blocks on the platform also move synchronously to the bottom of the pressing assembly, and the arc-shaped member gradually approaches the travel switch as it moves synchronously with the platform, until the precast concrete block moves to the bottom of the pressing assembly, and the arc-shaped member also moves to the travel switch and presses down the travel switch, so that the travel switch forms a normal electrical circuit; the travel switch is electrically connected to the solenoid valve, and the solenoid valve is electrically connected to the hydraulic pump. After the control descending circuit of the arc-shaped member of the travel switch is turned on, the solenoid valve controls the hydraulic pump to work, and the hydraulic pump drives the hydraulic cylinder to operate. The staff controls the operation of the hydraulic cylinder through the control console, and the hydraulic cylinder controls the pressing block to move down close to the concrete precast block, and cooperates with the platform and the support plate to extrude the concrete precast block, and a pressure sensor is embedded in the pressing block. The pressure sensor uploads the pressure data to the display of the console in real time, thereby realizing the pressure detection of the precast concrete block; when the pressure on the precast concrete block reaches the limit, cracks will appear in the precast concrete block, and then it will break into a large number of concrete fragments. The two door panels can prevent the concrete fragments from flying to the outside of the guard plate and prevent the concrete fragments from hurting the staff; in addition, the hydraulic cylinder can only operate normally after the arc-shaped part moves with the bottom plate to the travel switch. During the concrete pressure detection process, if the door panel is controlled to move by external force, the bottom plate will move synchronously, and the arc-shaped part will also move. The travel switch without the arc-shaped part will automatically disconnect the circuit, making the hydraulic cylinder unable to continue working, achieving the purpose of forced shutdown and increasing the safety of the press during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;
[0025] Figure 2 For the present invention Figure 1 The main view of
[0026] Figure 3 For the present invention Figure 1A partial structural diagram of
[0027] Figure 4 For the present invention Figure 3 A top view of
[0028] Figure 5 For the present invention Figure 4 AA section view;
[0029] Figure 6 For the present invention Figure 3 A partial structural diagram of
[0030] Figure 7 For the present invention Figure 6 A partial structural diagram of
[0031] Figure 8 For the present invention Figure 7 A partial structural diagram of
[0032] Fig. 9 For the present invention Figure 8 Side view of
[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the pressing component in the present invention;
[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the sliding door in the present invention;
[0035] Fig.12 For the present invention Figure 2 A partial structural diagram of
[0036] Fig.13 For the present invention Fig.12 A partial enlarged view of
[0037] Fig.14 For the present invention Fig.12 The main view;
[0038] Fig.15 It is a position relationship diagram of the platform assembly and the travel switch of the present invention;
[0039] Fig.16 It is a three-dimensional structural schematic diagram of the sliding assembly of the present invention;
[0040] Fig.17 For the present invention Fig.16 A partial structural diagram of
[0041] Fig.18 For the present invention Fig.17 A partial structural diagram of
[0042] Fig.19 For the present invention Fig.18 Another perspective of the picture;
[0043] Fig. 20 For the present invention Fig.18 The main view of
[0044] Fig.21 It is a schematic diagram of the three-dimensional structure of the placement table of the present invention;
[0045] Fig. 22 For the present invention Fig.21 Another perspective of the picture.
[0046] In the figure: 1-sliding assembly, 2-platform assembly, 3-guard plate, 4-sliding door, 5-pressing assembly, 6-console, 7-base, 8-vertical rod assembly, 9-travel switch;
[0047] 11-placing table, 12-sliding table, 13-slide rail, 21-cross plate, 22-support rail, 23-driven pulley, 24-driving pulley, 25-belt, 26-motor, 27-connecting sleeve, 31-side guard plate, 32-top plate, 33-convex plate, 34-slide groove, 41-door plate, 42-connecting piece, 43-through groove, 44-convex block, 51-hydraulic cylinder, 52-positioning sleeve, 53-pressing block, 71-seat body, 72-vertical plate, 73-support frame, 81-front end vertical rod, 82-rear end vertical rod, 83-middle end vertical rod, 84-ring, 85-positioning piece;
[0048] 111- platform, 112- auxiliary frame, 113- bottom rod, 114- arc-shaped member, 115- sleeve, 121- top frame, 122- bottom plate, 123- side plate, 124- support plate, 125- spring, 126- support column, 127- rotating rod, 128- slider, 129- clamping member, 120- L-shaped plate. DETAILED DESCRIPTION
[0049] See also Figure 1-6 , Figure 17-22 A concrete testing press comprises a sliding assembly 1 for placing a concrete prefabricated block, the sliding assembly 1 is transmission-connected to a platform assembly 2, one end of the platform assembly 2 is located inside a guard plate 3, one side of the guard plate 3 is movably connected to two sliding doors 4, and both sliding doors 4 are transmission-connected to the sliding assembly 1; a travel switch 9 is provided inside the guard plate 3, and the travel switch 9 is installed on the platform assembly 2; a pressing assembly 5 is provided in the middle of the top of the guard plate 3, and a control console 6 is provided on one side of the guard plate 3;
[0050] The sliding assembly 1 includes a slide 12, the bottom of which is slidably connected to two slide rails 13, and a placement table 11 is provided in the middle above the slide 12; the placement table 11 includes a table body 111, the bottom of which is fixedly connected to a bottom rod 113, and the bottom of the bottom rod 113 is fixedly connected to an arc-shaped member 114; four auxiliary frames 112 are provided on the top of the table body 111, and the four auxiliary frames 112 are all L-shaped and distributed in a rectangular shape; sleeves 115 are provided at the four corners of the bottom of the table body 111;
[0051] By adopting the above technical solution, in the idle state, the sliding component 1 is located at the end of the platform component 2 away from the guard plate 3, that is, located on the outside of the guard plate 3; when the concrete precast block needs to be pressure tested, the concrete precast block is placed on the platform 111, and the platform 111 descends under the action of the weight of the concrete precast block, and simultaneously drives the bottom rod 113 and the arc-shaped member 114 to descend; the four auxiliary frames 112 on the top of the platform 111 play a role in positioning the concrete precast block, and the four auxiliary frames 112 are respectively located at the four corners of the concrete precast block, which can prevent the concrete precast block from shaking or shifting, and ensure that the concrete precast block is always located in the middle of the platform 111, and prevent the concrete precast block from being unevenly stressed at various positions when the downward pressure component 5 squeezes the concrete precast block; the platform 111 moves downward until it is in contact with the support plate 124 and no longer moves, and the support plate 124 plays a role in supporting the platform 111 and the concrete precast block.
[0052] See also Figure 1-20 In this embodiment, the slide 12 includes a bottom plate 122, and springs 125 are fixedly connected to the four corners of the top of the bottom plate 122. The upper ends of the four springs 125 are respectively located inside the four sleeves 115, and the tops of the four springs 125 are fixedly connected to the bottom of the platform 111; a plurality of sliders 128 are symmetrically fixedly connected to the bottom of the bottom plate 122, and the plurality of sliders 128 are respectively slidably connected to the two slide rails 13; both ends of the lower end of the bottom plate 122 are rotatably connected to rotating rods 127; a through hole for the bottom rod 113 to pass through is provided on the bottom plate 122, and the arc-shaped member 114 is located below the bottom plate 122;
[0053] The guard plate 3 includes two side guard plates 31, and the two side guard plates 31 are respectively located on both sides of the platform 111; the top of the two side guard plates 31 is integrally provided with a convex plate 33 on one side close to the platform 111, and the two convex plates 33 are provided with a through slide groove 34; the two sliding doors 4 have the same structure, the sliding door 4 includes a door panel 41, and the bottom of the door panel 41 away from the platform 111 is provided with a connecting piece 42, and the two connecting pieces 42 are respectively rotatably connected to the ends of the two rotating rods 127 away from the bottom plate 122; the tops of the two door panels 41 are integrally provided with convex blocks 44 on both sides, and the two door panels 41 are slidably connected to the slide grooves 34 of the two convex plates 33 through their respective convex blocks 44;
[0054] The horizontal plate 21 is fixedly connected to the vertical rod assembly 8, and the lower end of the vertical rod assembly 8 is fixedly connected to the base 7; the base 7 includes a seat body 71, which is rectangular and has the same length as the horizontal plate 21; a vertical plate 72 is fixedly connected to the top of the end of the seat body 71 close to the motor 26, and the motor 26 is fixedly connected to the vertical plate 72 by bolts; a support frame 73 is provided on the side of the vertical plate 72 away from the motor 26, and one end of the support frame 73 is fixedly connected to the vertical plate 72, and the other end is fixedly connected to the top of the seat body 71;
[0055] The vertical rod assembly 8 includes a front vertical rod group, a rear vertical rod group and a middle vertical rod group, and the front vertical rod group includes two front vertical rods 81, the rear vertical rod group includes two rear vertical rods 82, and the middle vertical rod group includes two middle vertical rods 83; the two front vertical rods 81 are respectively fixedly connected to the connecting sleeves 27 on both sides of the end of the horizontal plate 21 close to the placement table 11, the two rear vertical rods 82 are respectively fixedly connected to the connecting sleeves 27 on both sides of the end of the horizontal plate 21 away from the placement table 11, and the two middle vertical rods 83 are respectively fixedly connected to the connecting sleeves 27 on both sides of the middle end of the horizontal plate 21; the length of the middle vertical rod 83 is the same as that of the rear vertical rod 82, and the length of the front vertical rod 81 is less than that of the rear vertical rod 82;
[0056] By adopting the above technical solution, after the concrete precast blocks are placed, the motor 26 drives the belt 25 to rotate by controlling the rotation of the active pulley 24. During the rotation, the belt 25 drives the base plate 122 to move in the direction of the guard plate 3 by driving the clamping member 129, and the base plate 122 simultaneously drives the platform 111, the bottom rod 113 and the arc-shaped member 114 to move; the slider 128 cooperates with the slide rail 13 to make the base plate 122 move more easily and smoothly, reduce the wear of the belt 25, and at the same time ensure the stability of the base plate 122, and prevent the base plate 122 from shaking or offsetting during movement.
[0057] See also Figure 1-22 In this embodiment, both ends of the top of the bottom plate 122 are fixedly connected with side plates 123, and the tops of the two side plates 123 are fixedly connected to the two ends of the bottom of the top frame 121 respectively; a rectangular through groove is provided in the middle of the top frame 121 for the platform body 111 to pass through; a support plate 124 is provided between the bottom plate 122 and the top frame 121, the size of the support plate 124 is larger than the size of the platform body 111, and the support plate 124 is provided with a through groove for the bottom rod 113 to pass through; a plurality of support columns 126 are evenly fixedly connected to the bottom of the support plate 124, and the bottoms of the plurality of support columns 126 are fixedly connected to the top of the bottom plate 122; arc-shaped grooves are provided at the four corners of the support plate 124 for the spring 125 to pass through; an L-shaped plate 120 is fixedly connected to the middle of the bottom of the bottom plate 122, and the side of the L-shaped plate 120 away from the bottom plate 122 is fixedly connected to the clamping member 129;
[0058] The platform assembly 2 includes a belt 25, which is fixedly connected to the clamping member 129; the inner sides of the two ends of the belt 25 are respectively connected to the driven pulley 23 and the driving pulley 24, and the middle of the driven pulley 23 and the driving pulley 24 are fixedly connected to the transmission shaft; a cross plate 21 is provided below the belt 25, and the cross plate 21 is located between the two side guard plates 31. The travel switch 9 is installed on the top of the cross plate 21, and the travel switch 9 is located on one side of the belt 25 and the travel switch 9 corresponds to the position of the arc-shaped member 114; the ends of the two transmission shafts are both rotatably connected to the cross plate 21, and one of the transmission shafts extends to the bottom of the cross plate 21 and is fixedly connected to the output shaft of the motor 26; the top of the cross plate 21 is symmetrically fixedly connected to two support rails 22, and the tops of the two support rails 22 are respectively fixedly connected to the bottoms of the two slide rails 13; a plurality of connecting sleeves 27 are fixedly connected to both sides of the cross plate 21;
[0059] The two side guard plates 31 are fixedly connected to the sealing plate at one side away from the platform 111, and the tops of the two side guard plates 31 are fixedly connected to the bottom of the top plate 32; the pressing assembly 5 includes a cylinder 51, which is fixedly connected to the middle of the top of the top plate 32, and a round hole is provided in the middle of the top plate 32 for the telescopic rod of the cylinder 51 to pass through; the telescopic rod of the cylinder 51 is fixedly connected to the middle of the top of the positioning sleeve 52, and the positioning sleeve 52 is fixedly connected to the middle of the bottom of the top plate 32; the bottom of the positioning sleeve 52 is fixedly connected to the middle of the top of the pressure block 53, and the position of the pressure block 53 corresponds to the position of the platform 111;
[0060] By adopting the above technical solution, after the bottom plate 122 moves to the bottom of the pressing component 5, the platform 111 and the concrete prefabricated block prevented on the platform 111 also move synchronously to the bottom of the pressing component 5, and the arc-shaped member 114 gradually approaches the travel switch 9 while following the synchronous movement of the platform 111, until the concrete prefabricated block moves to the bottom of the pressing component 5, the arc-shaped member 114 also moves to the travel switch 9 and presses down the travel switch 9, so that the travel switch 9 forms a normal electrical circuit; the travel switch 9 is electrically connected to the solenoid valve, and the solenoid valve is electrically connected to the hydraulic pump. After the control descending circuit of the arc-shaped member 114 of the travel switch 9 is turned on, the solenoid valve controls the hydraulic pump to work, and the hydraulic pump drives the hydraulic cylinder 51 to operate. The staff controls the operation of the hydraulic cylinder 51 through the control console 6, and the hydraulic cylinder 51 controls the pressing block 53 to move down close to the concrete prefabricated block, and cooperates with the platform 111 and the support plate 124 to extrude the concrete prefabricated block. A pressure sensor is embedded in the pressing block 53, and the pressure sensor uploads the pressure data to the display of the control console 6 in real time, thereby realizing the pressure detection of the precast concrete block; when the pressure on the precast concrete block reaches the limit, the precast concrete block will crack and then break into a large number of concrete fragments. The two door panels 41 can prevent the concrete fragments from flying to the outside of the guard plate 3, thereby preventing the concrete fragments from injuring the staff; in addition, the hydraulic cylinder 51 can only operate normally after the arc-shaped member 114 follows the bottom plate 122 to move to the travel switch 9. During the concrete pressure detection process, if the door panel 41 is controlled to move by external force, the bottom plate 122 will move synchronously, and the arc-shaped member 114 will also move. Without the arc-shaped member 114, the pressing travel switch 9 automatically disconnects the circuit, making it impossible for the hydraulic cylinder 51 to continue working, thereby achieving the purpose of forced shutdown and increasing the safety of the press during operation.
[0061] See also Figure 1-20 In this embodiment, the lower ends of the two front vertical rods 81, the rear vertical rod 82 and the middle vertical rod 83 are fixedly connected to the seat body 71; the two middle vertical rods 83 are fixedly connected with a collar 84, and the two collars 84 are fixedly connected with a positioning piece 85 on one side close to the door panel 41; the lower ends of the two door panels 41 are provided with a through groove 43, and the two positioning pieces 85 are respectively located in the two through grooves 43, and the door panel 41 is slidably connected with the positioning piece 85 through the through groove 43;
[0062] By adopting the above technical solution, during the movement of the bottom plate 122, the two door panels 41 are driven to move by the two rotating rods 127. When the bottom plate 122 is close to the door panel 41, the rotating rod 127 will push the door panel 41 to move away from the bottom plate 122. The two door panels 41 are away from each other, which can provide sufficient space for the bottom plate 122 to ensure that the bottom plate 122 can move smoothly to the inside of the guard plate 3. After the bottom plate 122 enters the guard plate 3, it continues to move and move away from the door panel 41. At this time, the rotating rod 127 will pull the door panel 41, so that the two door panels 41 are close to each other. , until the two door panels 41 fit together and the bottom plate 122 moves to the bottom of the pressing assembly 5; the convex plate 33 cooperates with the side guard plate 31 to support the door panel 41 to prevent the door panel 41 from falling off or tilting. At the same time, the slide groove 34 of the convex plate 33 can also allow the door panel 41 to move normally. In addition, the positioning member 85 also supports the door panel 41, and when the door panel 41 moves, the through groove 43 of the door panel 41 moves along the positioning member 85. The positioning member 85 can also limit the range of movement of the door panel 41 to prevent the door panel 41 from moving too far and separating from the convex plate 33.
[0063] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A concrete testing press, characterized in that: The invention comprises a sliding assembly (1) for placing a concrete prefabricated block, the sliding assembly (1) being transmission-connected to a platform assembly (2), one end of the platform assembly (2) being located on the inner side of a guard plate (3), two sliding doors (4) being movably connected to one side of the guard plate (3), and both sliding doors (4) being transmission-connected to the sliding assembly (1); a travel switch (9) being provided on the inner side of the guard plate (3), and the travel switch (9) being mounted on the platform assembly (2); a pressing assembly (5) being provided in the middle of the top of the guard plate (3), and a control console (6) being provided on one side of the guard plate (3); The sliding assembly (1) comprises a sliding platform (12), the bottom of which is slidably connected to two sliding rails (13), and a placement platform (11) is provided in the middle above the sliding platform (12); the placement platform (11) comprises a platform body (111), the bottom of which is fixedly connected to a bottom rod (113), and the bottom of which is fixedly connected to an arc-shaped member (114); four auxiliary frames (112) are provided on the top of the platform body (111), and the four auxiliary frames (112) are all L-shaped and distributed in a rectangular shape; sleeves (115) are provided at the four corners of the bottom of the platform body (111); The slide (12) comprises a bottom plate (122), the four corners of the top of the bottom plate (122) are fixedly connected with springs (125), the upper ends of the four springs (125) are respectively located inside the four sleeves (115), and the tops of the four springs (125) are fixedly connected to the bottom of the platform (111); the bottom of the bottom plate (122) is symmetrically fixedly connected with a plurality of sliders (128), and the plurality of sliders (128) are respectively slidably connected to the two slide rails (13); the two ends of the lower end of the bottom plate (122) are rotatably connected with a rotating rod (127); the bottom plate (122) is provided with a through hole for the bottom rod (113) to pass through, and the arc-shaped member (114) is located below the bottom plate (122); The guard plate (3) comprises two side guard plates (31), and the two side guard plates (31) are respectively located on both sides of the platform (111); a convex plate (33) is integrally provided on the top of the two side guard plates (31) close to the platform (111), and a through slide groove (34) is provided on the two convex plates (33); the two sliding doors (4) have the same structure, and the sliding door (4) comprises a door panel (41), and a connecting piece (42) is provided at the bottom of the door panel (41) away from the platform (111), and the two connecting pieces (42) are respectively rotatably connected to one end of the two rotating rods (127) away from the bottom plate (122); convex blocks (44) are integrally provided on both sides of the top of the two door panels (41), and the two door panels (41) are slidably connected to the slide grooves (34) of the two convex plates (33) through their respective convex blocks (44).
2. The concrete testing press as claimed in claim 1, characterized in that: The top ends of the bottom plate (122) are fixedly connected to side plates (123), and the tops of the two side plates (123) are respectively fixedly connected to the bottom ends of the top frame (121); a rectangular through slot is provided in the middle of the top frame (121) for the platform (111) to pass through; a support plate (124) is provided between the bottom plate (122) and the top frame (121), the size of the support plate (124) is larger than the size of the platform (111), and a bottom rod (111) is provided on the support plate (124). The bottom of the support plate (124) is evenly and fixedly connected with a plurality of support columns (126), and the bottoms of the plurality of support columns (126) are all fixedly connected with the top of the bottom plate (122); the four corners of the support plate (124) are all provided with arc-shaped grooves for the spring (125) to pass through; an L-shaped plate (120) is fixedly connected to the middle of the bottom of the bottom plate (122), and the side of the L-shaped plate (120) away from the bottom plate (122) is fixedly connected to a clamping member (129).
3. The concrete testing press as claimed in claim 2, characterized in that: The platform assembly (2) comprises a belt (25), which is fixedly connected to a clamping member (129); the inner sides of both ends of the belt (25) are respectively connected to a driven pulley (23) and a driving pulley (24), and a transmission shaft is fixedly connected between the driven pulley (23) and the driving pulley (24); a transverse plate (21) is provided below the belt (25), and the transverse plate (21) is located between two side guard plates (31); a travel switch (9) is installed on the top of the transverse plate (21), and the travel switch (9) The travel switch (9) is located on one side of the belt (25) and corresponds to the position of the arc-shaped member (114); the ends of the two transmission shafts are rotatably connected to the transverse plate (21), and one of the transmission shafts extends to the bottom of the transverse plate (21) and is fixedly connected to the output shaft of the motor (26); the top of the transverse plate (21) is symmetrically fixedly connected to two support rails (22), and the tops of the two support rails (22) are respectively fixedly connected to the bottoms of the two slide rails (13); and a plurality of connecting sleeves (27) are fixedly connected to both sides of the transverse plate (21).
4. The concrete testing press as claimed in claim 3, characterized in that: The two side guard plates (31) are fixedly connected to the sealing plate at one side away from the platform (111), and the tops of the two side guard plates (31) are fixedly connected to the bottom of the top plate (32); the pressing assembly (5) comprises a hydraulic cylinder (51), which is fixedly connected to the middle of the top of the top plate (32), and a round hole is provided in the middle of the top plate (32) for the telescopic rod of the hydraulic cylinder (51) to pass through; the telescopic rod of the hydraulic cylinder (51) is fixedly connected to the middle of the top of the positioning sleeve (52), and the positioning sleeve (52) is fixedly connected to the middle of the bottom of the top plate (32); the bottom of the positioning sleeve (52) is fixedly connected to the middle of the top of the pressure block (53), and the position of the pressure block (53) corresponds to the position of the platform (111).
5. The concrete testing press as claimed in claim 4, characterized in that: The horizontal plate (21) is fixedly connected to the vertical rod assembly (8), and the lower end of the vertical rod assembly (8) is fixedly connected to the base (7); the base (7) includes a base body (71), the base body (71) is rectangular, and the length of the base body (71) is the same as the length of the horizontal plate (21); the top of the end of the base body (71) close to the motor (26) is fixedly connected to the vertical plate (72), and the motor (26) is fixedly connected to the vertical plate (72) by bolts; a support frame (73) is provided on the side of the vertical plate (72) away from the motor (26), one end of the support frame (73) is fixedly connected to the vertical plate (72), and the other end is fixedly connected to the top of the base body (71).
6. The concrete testing press as claimed in claim 5, characterized in that: The vertical rod assembly (8) comprises a front vertical rod group, a rear vertical rod group and a middle vertical rod group, wherein the front vertical rod group comprises two front vertical rods (81), the rear vertical rod group comprises two rear vertical rods (82), and the middle vertical rod group comprises two middle vertical rods (83); the two front vertical rods (81) are respectively fixedly connected to the connecting sleeves (27) on both sides of one end of the horizontal plate (21) close to the placing platform (11), the two rear vertical rods (82) are respectively fixedly connected to the connecting sleeves (27) on both sides of one end of the horizontal plate (21) away from the placing platform (11), and the two middle vertical rods (83) are respectively fixedly connected to the connecting sleeves (27) on both sides of the middle end of the horizontal plate (21); the middle vertical rod (83) and the rear vertical rod (82) have the same length, and the length of the front vertical rod (81) is less than the length of the rear vertical rod (82).
7. The concrete testing press as claimed in claim 6, characterized in that: The lower ends of the two front end vertical rods (81), the rear end vertical rod (82) and the middle end vertical rod (83) are fixedly connected to the seat body (71); the two middle end vertical rods (83) are fixedly connected with a collar (84), and the two collars (84) are fixedly connected with a positioning piece (85) on one side close to the door panel (41); the lower ends of the two door panels (41) are provided with a through groove (43), and the two positioning pieces (85) are respectively located in the two through grooves (43), and the door panel (41) is slidably connected to the positioning piece (85) via the through groove (43).
Citation Information
Patent Citations
Concrete pressure testing machine
CN207379815U