Concrete precast member stress testing device
By designing a concrete prefabricated stress testing device that includes a stable base, a movable connection, a gravity test structure and a temperature test component, the problem of ineffective testing in the prior art is solved, and a comprehensive and accurate test effect is achieved outdoors.
Patent Information
- Application Number
- CN202510073627.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-05-09
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing concrete prefabricated stress testing device cannot be effectively tested in extreme environments, and the device is bulky and inconvenient for outdoor movement, resulting in unsatisfactory testing results.
A concrete prefabricated stress testing device is designed, including a stable base, a movable joint stabilization frame, a gravity test structure, a temperature test assembly and an adjustable force adjustment block, which can be used for temperature and force testing in extreme environments outdoors.
It realizes effective temperature and force testing of concrete prefabricated parts in extreme environments, solves the problem of bulky and inconvenient outdoor movement, and improves the comprehensiveness and accuracy of the test.
Smart Images
Figure CN119959035A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of concrete testing, and in particular to a stress testing device for prefabricated concrete parts. Background Art
[0002] At present, during construction, concrete will be pre-processed into prefabricated parts in the factory. Concrete can be directly constructed, which speeds up the construction steps on the construction site. Concrete prefabricated parts need to be stress tested before being put into use. The stress test is used to test the pressure and tension of the concrete. Since the current stress testing device ignores a problem, that is, the problem of random testing of concrete prefabricated parts in extreme outdoor environments, concrete prefabricated parts will crack and deform in high temperature and cold environments, shortening the service life of concrete prefabricated parts, and there are also safety hazards of concrete transformation and fracture. In addition, the current stress testing device basically takes a sample indoors for testing, and the testing device is relatively bulky and inconvenient to move outdoors. Such a test effect ignores the stress test of prefabricated parts in other ranges, and the test effect is not ideal. Summary of the invention
[0003] In view of this, the present invention provides a precast concrete component stress testing device to solve the problem of testing the precast concrete components by simulating extreme environments.
[0004] The present invention provides a stress testing device for precast concrete parts, which specifically includes a stable base, wherein four rollers are installed at the bottom of the stable base, a movably connected stable frame is installed above the stable base, a cylindrical block is provided at the middle position above the stable base, a rotating hole is opened at the middle position of the bottom of the stable frame, the cylindrical block is inserted into the rotating hole, a group of gravity testing structures, a group of positioning structures and a first electric cylinder are installed on the stable frame, a scale and a mounting frame are also installed on the stable frame, the gravity testing structure is composed of an electric motor, a winding roller, a hammer block, a traction rope, a force adjustment block and a threaded rod, the positioning structure is composed of a positioning shell, a positioning plate and a first positioning rod, a counterweight is installed on the outer side of the threaded rod, a group of temperature testing components is installed on one side of the mounting frame, and the temperature testing components are composed of a second electric cylinder, a connecting plate, a second positioning rod, a first connecting shell, a refrigerator, a second connecting shell, a protective frame, a heating wire and a control switch.
[0005] Preferably, a positioning bolt is installed at the bottom of the stabilizing frame, and two positioning grooves of cylindrical structures are provided above the stabilizing base, and the bottom of the positioning bolt extends to the inside of the positioning groove.
[0006] Preferably, a rectangular mounting groove is provided on the inner side of the stabilizing frame, and the bottom of the scale is mounted inside the mounting groove.
[0007] Preferably, the electric motor and the winding roller are respectively installed above the stabilizing frame, the winding roller is connected to the driving shaft of the electric motor, the two ends of the traction rope are respectively firmly connected to the winding roller and the hammer block, an insertion hole is opened in the middle position of the force adjustment block, the traction rope is inserted into the inside of the insertion hole, a locking bolt is installed inside the force adjustment block, the end of the locking bolt is in close contact with the traction rope, two threaded rods are provided above the hammer block, an installation hole is opened in the middle position of the counterweight block, the counterweight block is installed on the outside of the threaded rod in conjunction with the installation hole, and a locking nut is installed on the outside of the threaded rod.
[0008] Preferably, a fixing bolt is installed between the positioning shell and the stabilizing frame, two sliding holes are opened on the positioning shell, the positioning plate and the first positioning rod are respectively inserted into the sliding holes, a first positioning rod is provided on the outer side of the positioning plate, a supporting spring is installed on the outer side of the first positioning rod, and an inclined surface is provided on the bottom of the positioning plate.
[0009] Preferably, the push rod of the first electric cylinder is provided with an extrusion block at the bottom, the extrusion block is provided with two inclined surfaces, and a friction block is provided at the position of the positioning plate, and the friction block is in contact with the inclined surfaces of the extrusion block.
[0010] Preferably, a U-shaped sliding groove is provided on the inner side of the scale, and an indicator bar is provided on the outer side of the force adjustment block, and the indicator bar extends to the inside of the sliding groove.
[0011] Preferably, the push rod of the second electric cylinder is provided with a connecting plate at the bottom position, two vertical second positioning rods are provided above the connecting plate, a mounting hole is opened on the mounting frame, the second electric cylinder is installed inside the mounting hole, a locking bolt is installed at the position of the mounting hole, two sliding holes are provided at the outer position of the positioning hole, and the second positioning rod is inserted into the interior of the sliding hole.
[0012] Preferably, the connecting plate is installed between the first connecting shell and the second connecting shell, two installation grooves are respectively opened above the first connecting shell and the second connecting shell, the top of the connecting plate extends to the inside of the installation groove, connecting bolts are installed between the connecting plate, the first connecting shell and the second connecting shell, a refrigerator is installed inside the first connecting shell, a protective frame is installed inside the second connecting shell, a heating wire is installed above the protective frame, a positioning sleeve is respectively provided on the outer side surfaces of the first connecting shell and the second connecting shell, a control switch is installed inside the positioning sleeve, and a buffer spring is installed at the bottom of the control switch.
[0013] The beneficial effects are: 1. The temperature tolerance test of prefabricated concrete parts is carried out by setting a refrigerator and a heating wire. The specific beneficial effects are as follows: The refrigerator and the heating wire are arranged inside the connecting shell. When the connecting shell contacts the precast concrete part, a control switch is arranged on the outside of the connecting shell, and the refrigerator and the heating wire are effectively energized. The refrigerator performs a refrigeration stress test on the precast concrete part, and the heating wire performs a high temperature stress test on the precast concrete part.
[0014] 2. A hammer block is provided to test the stress of prefabricated concrete parts. The specific beneficial effects are as follows: A traction rope is provided on the hammer block, and the traction rope cooperates with the winding roller to lift the hammer block. The lifted hammer block is positioned by the positioning plate and the force adjustment block. After the positioning plate is subjected to the extrusion force, the hammer block falls and hammers the concrete precast part. The counterweight block can be rotated on the hammer block to increase or decrease weight, and the strength adjustment block is set as an adjustable structure. The different strengths of the concrete prefabricated parts can be accurately tested with a scale, which solves the problem that the current force test device is inconvenient for outdoor random testing due to its bulkiness. The hammer block and the control mechanism have a simple structure and are easy to maintain. In addition, with the help of a stabilizing frame, the gravity test structure and temperature test components can be flexibly switched. With a simple test device, the impact resistance test of precast concrete parts and the temperature resistance test in extreme environments can be achieved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.
[0016] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.
[0017] In the attached picture: Figure 1 is a schematic diagram of the axle-side structure of the stress testing device of an embodiment of the present invention after assembly; Figure 2 The embodiment of the present invention Figure 1 A schematic diagram of the axle side structure from an upward angle; Figure 3 It is a schematic diagram of the axle side structure after the hammer block is lifted in an embodiment of the present invention; Figure 4 The embodiment of the present invention Figure 3 A schematic diagram of the axle side structure from an upward angle; Figure 5 The embodiment of the present invention Figure 4 A schematic diagram of the axle-side structure from a rear upward perspective; Figure 6 It is a schematic diagram of the structure of the stabilizing frame and the connecting housing after the cut-away axle side of an embodiment of the present invention; Figure 7It is a schematic diagram of the split shaft side structure of the stress testing device of an embodiment of the present invention; Figure 8 The embodiment of the present invention Figure 7 A schematic diagram of the right-angle structural view; Fig. 9 The embodiment of the present invention Figure 1 Schematic diagram of the left view structure; Fig.10 The embodiment of the present invention Figure 2 A schematic diagram of the enlarged structure at point A; Fig.11 The embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure at B; Fig.12 The embodiment of the present invention Figure 7 Enlarged structural diagram at C.
[0018] Reference numerals list 1. Stable base; 2. Stable frame; 201. Positioning bolt; 3. Gravity test structure; 301. Electric motor; 302. Winding roller; 303. Hammer block; 304. Traction rope; 305. Force adjustment block; 306. Threaded rod; 4. Counterweight block; 5. First electric cylinder; 501. Extrusion block; 6. Positioning structure; 601. Positioning shell; 602. Positioning plate; 603. First positioning rod; 7. Scale; 8. Mounting frame; 9. Temperature test assembly; 901. Second electric cylinder; 902. Connecting plate; 903. Second positioning rod; 904. First connecting shell; 905. Refrigerator; 906. Second connecting shell; 907. Protective frame; 908. Heating wire; 909. Control switch. DETAILED DESCRIPTION
[0019] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.
[0020] Please refer to Figures 1 to 12 As shown: Embodiment 1: The present invention provides a stress testing device for precast concrete parts, comprising a stable base 1, Four rollers are installed at the bottom of the stable base 1. Above the stable base 1, a movably connected stable frame 2 is installed. At the bottom of the stable frame 2, a positioning bolt 201 is installed. Above the stable base 1, two positioning grooves in the shape of cylinders are provided. The bottom of the positioning bolt 201 extends into the interior of the positioning groove. After the stable frame 2 rotates 180 degrees, the positioning bolt 201 cooperates with the positioning groove to achieve the effect of circumferential positioning of the stable frame 2; In the middle position above the stable base 1, a cylindrical block is provided. In the middle position at the bottom of the stable frame 2, a rotating hole is provided. The cylindrical block is inserted into the interior of the rotating hole. The cylindrical block cooperates with the rotating hole to achieve the effect of positioning the rotation position of the stable frame 2. The stable frame 2 rotates around the cylindrical block. A set of gravity testing structures 3, a set of positioning structures 6, and a first electric cylinder 5 are installed on the stable frame 2. At the bottom of the push rod of the first electric cylinder 5, an extrusion block 501 is provided. Two inclined surfaces are provided on the extrusion block 501. At the position of the positioning plate 602, a friction block is provided. The friction block contacts the inclined surface of the extrusion block 501. When the hammering block 303 falls downward, the first electric cylinder 5 cooperates with the extrusion block 501 to extrude the positioning plate 602 outward. At this time, a distance is generated between the positioning plate 602 and the force adjustment block 305. The hammering block 303 quickly falls downward. A scale 7 and a mounting bracket 8 are also installed on the stable frame 2. Inside the stable frame 2, a rectangular mounting groove is provided. The bottom of the scale 7 is installed inside the mounting groove. The mounting groove positions the scale 7. A U-shaped sliding groove is provided inside the scale 7. An indicating strip is provided on the outer side of the force adjustment block 305. The indicating strip extends into the interior of the sliding groove. The scale 7 cooperates with the indicating strip to achieve the effect of accurately adjusting the height of the force adjustment block 305; The gravity test structure 3 is composed of an electric motor 301, a winding roller 302, a hammer block 303, a traction rope 304, a force adjustment block 305 and a threaded rod 306. The electric motor 301 and the winding roller 302 are respectively installed on the top of the stabilizing frame 2. The winding roller 302 is connected to the driving shaft of the electric motor 301. The electric motor 301 drives the winding roller 302 to rotate. The two ends of the traction rope 304 are respectively firmly connected to the winding roller 302 and the hammer block 303. The winding roller 302 realizes the lifting effect of the hammer block 303 when the traction rope 304 is wound. An insertion hole is opened in the middle position of the force adjustment block 305. The traction rope 304 is inserted into the inside of the insertion hole. A locking bolt is installed inside the force adjustment block 305. The end is in close contact with the traction rope 304. After the strength adjustment block 305 is adjusted in height, the strength adjustment block 305 is locked on the outside of the traction rope 304 with the locking bolt. Two threaded rods 306 are provided above the hammer block 303. A mounting hole is opened in the middle position of the counterweight block 4. The counterweight block 4 is mounted on the outside of the threaded rod 306 with the mounting hole. A locking nut is installed on the outside of the threaded rod 306. The locking nut makes the counterweight block 4 firmly mounted on the outside of the threaded rod 306. The inspection personnel increase and decrease the counterweight block 4 as needed. After the counterweight block 4 on the outside of the threaded rod 306 is increased, the hammering force of the hammer block 303 becomes larger. After the counterweight block 4 is reduced, the hammering force of the hammer block 303 is reduced accordingly, so as to achieve the effect of convenient adjustment of different stress tests of concrete precast parts. The positioning structure 6 is composed of a positioning shell 601, a positioning plate 602 and a first positioning rod 603. A fixing bolt is installed between the positioning shell 601 and the stabilizing frame 2. Two sliding holes are provided on the positioning shell 601. The positioning plate 602 and the first positioning rod 603 are respectively inserted into the sliding holes. The sliding holes realize the effect of simultaneously positioning the positioning plate 602 and the first positioning rod 603 during the sliding process. A first positioning rod 603 is provided on the outer side of the positioning plate 602. A supporting spring is installed on the outer side of the first positioning rod 603. The supporting spring elastically supports the positioning plate 602 outward. An inclined surface is provided at the bottom of the positioning plate 602. After the force adjustment block 305 moves upward, the inclined surface can effectively squeeze the positioning plate 602 to both sides, so that the force adjustment block 305 is effectively moved to the upper position of the positioning plate 602. The supporting spring is used to support the force adjustment block 305, so as to further realize the effect of positioning the hammer block 303 after lifting. A counterweight 4 is installed on the outer side of the threaded rod 306, and a set of temperature test components 9 is installed on one side of the mounting frame 8. The temperature test component 9 is composed of a second electric cylinder 901, a connecting plate 902, a second positioning rod 903, a first connecting shell 904, a refrigerator 905, a second connecting shell 906, a protective frame 907, a heating wire 908 and a control switch 909. The push rod of the second electric cylinder 901 is provided with a connecting plate 902 at the bottom position. The second electric cylinder 901 drives the connecting plate 902 to move up and down. Two vertical second positioning rods 903 are provided above the connecting plate 902. A mounting hole is provided, and the second electric cylinder 901 is installed inside the mounting hole. A locking bolt is installed at the mounting hole. The locking bolt cooperates with the mounting hole to achieve the effect of positioning the mounting position of the second electric cylinder 901. Two sliding holes are provided at the outer position of the positioning hole. The second positioning rod 903 is inserted into the sliding hole. The second positioning rod 903 positions the circumference of the connecting plate 902. The connecting plate 902 is installed between the first connecting shell 904 and the second connecting shell 906. The connecting plate 902 is made of heat-insulating material, and the connecting plate 902 isolates the temperature of the first connecting shell 904 and the second connecting shell 906. Two installation grooves are respectively provided above the first connection shell 904 and the second connection shell 906. The top of the connection plate 902 extends to the inside of the installation groove, and cooperates with the installation groove to achieve the effect of positioning the installation position between the connection plate 902, the first connection shell 904, and the second connection shell 906. Connecting bolts are installed between the connection plate 902, the first connection shell 904, and the second connection shell 906. The connecting bolts firmly connect the connection plate 902, the first connection shell 904, and the second connection shell 906. The connection plate 902, the first connection shell 904, and the second connection shell 906 can move synchronously. A refrigerator 905 is installed inside the first connection shell 904, and a protective frame 90 is installed inside the second connection shell 906. 7. A heating wire 908 is installed above the protective frame 907. A positioning sleeve is provided on the outer side of the first connecting shell 904 and the second connecting shell 906 respectively. A control switch 909 is installed inside the positioning sleeve. A buffer spring is installed at the bottom of the control switch 909. When the test position of the concrete precast part is uneven, the uneven surface is repaired with the cooperation of the buffer spring. After the buffer spring is stressed, it can press the control switch 909 to achieve the effect of effectively energizing the refrigerator 905 and the heating wire 908 on the uneven surface. After the refrigerator 905 is energized, it cooperates with the first connecting shell 904 to perform a refrigeration stress test on the concrete precast part. After the heating wire 908 is energized, it cooperates with the second connecting shell 906 to perform a high temperature stress test on the concrete precast part.
[0021] Embodiment 2: An electromagnet is set between the electric motor 301 and the winding roller 302, and a sliding structure is set between the electric motor 301 and the stabilizing frame 2. The electromagnet cooperates to control the electric motor 301 to approach and move away from the winding roller 302. After the electric motor 301 moves away from the winding roller 302, the hammer block 303 can fall downward faster.
[0022] The specific usage and function of this embodiment are as follows: Before the stress test of the concrete prefabricated part, the test is first assembled, the stabilizing frame 2 is installed above the stabilizing base 1, the positioning bolts 201 are installed to position the stabilizing frame 2, the gravity test structure 3 is installed on the stabilizing frame 2 in conjunction with the electric motor 301 and the winding roller 302, the mounting frame 8 is installed on the outside of the stabilizing frame 2 in conjunction with the bolts, and the assembled temperature test assembly 9 is installed on the bottom of the stabilizing frame 2 in conjunction with the second electric cylinder 901; During the gravity test of the precast concrete part, firstly, the force adjustment block 305 is moved up and down, and the hammering force of the hammering block 303 is adjusted in accordance with the scale of the scale 7, and the force adjustment block 305 is locked by bolts, and the test device is moved to the position of the precast concrete part in accordance with the roller, and the winding roller 302 is controlled to wind up the traction rope 304, and the hammering block 303 is lifted upward. After the positioning plate 602 positions the force adjustment block 305, the winding of the traction rope 304 is stopped, and the first electric cylinder 5 is controlled to cooperate with the extrusion block 501 to squeeze the positioning plate 602 outward, and the hammering block 303 falls to hammer the precast concrete part, and the force adjustment block 305 is adjusted to different heights, and the counterweight block 4 is installed at the same time to perform different force tests on the precast concrete part; When testing the temperature tolerance of the precast concrete part, the staff turns the stabilizing frame 2 180 degrees to move the temperature test assembly 9 to the upper position of the precast concrete part, and controls the second electric cylinder 901 to push the temperature test assembly 9 downward to make the first connecting shell 904 and the second connecting shell 906 contact the precast concrete part. At this time, the control switch 909 is pressed, the refrigerator 905 and the heating wire 908 are energized, the refrigerator 905 performs a refrigeration stress test on the precast concrete part, and the heating wire 908 performs a high temperature stress test on the precast concrete part. The detection structure of the precast concrete part is observed and recorded.
Claims
1. A stress testing device for precast concrete parts, characterized in that: It comprises a stable base (1), the bottom of the stable base (1) is equipped with four rollers, a movably connected stable frame (2) is installed above the stable base (1), a cylindrical block is provided in the middle position above the stable base (1), a rotating hole is opened in the middle position at the bottom of the stable frame (2), the cylindrical block is inserted into the rotating hole, and a group of gravity test structures (3), a group of positioning structures (6) and a first electric cylinder (5) are installed on the stable frame (2); The stabilizing frame (2) is also equipped with a scale (7) and a mounting frame (8); the gravity test structure (3) is composed of an electric motor (301), a winding roller (302), a hammer block (303), a traction rope (304), a force adjustment block (305) and a threaded rod (306); and the positioning structure (6) is composed of a positioning shell (601), a positioning plate (602) and a first positioning rod (603); A counterweight (4) is installed on the outer side of the threaded rod (306), and a set of temperature test components (9) is installed on one side of the mounting frame (8). The temperature test component (9) is composed of a second electric cylinder (901), a connecting plate (902), a second positioning rod (903), a first connecting shell (904), a refrigerator (905), a second connecting shell (906), a protective frame (907), a heating wire (908) and a control switch (909).
2. A stress testing device for precast concrete parts according to claim 1, characterized in that: A positioning bolt (201) is installed at the bottom of the stabilizing frame (2), and two cylindrical positioning grooves are provided above the stabilizing base (1), and the bottom of the positioning bolt (201) extends into the interior of the positioning groove.
3. A stress testing device for precast concrete parts according to claim 1, characterized in that: A rectangular mounting groove is provided on the inner side of the stabilizing frame (2), and the bottom of the scale (7) is mounted inside the mounting groove.
4. A stress testing device for precast concrete parts according to claim 1, characterized in that: The electric motor (301) and the winding roller (302) are respectively mounted above the stabilizing frame (2); the winding roller (302) is connected to the driving shaft of the electric motor (301); the two ends of the traction rope (304) are respectively firmly connected to the winding roller (302) and the hammer block (303); an insertion hole is provided in the middle of the strength adjustment block (305); the traction rope (304) is inserted into the insertion hole; a locking bolt is installed inside the strength adjustment block (305); two threaded rods (306) are provided above the hammer block (303); a mounting hole is provided in the middle of the counterweight block (4); and a locking nut is installed on the outer side of the threaded rod (306).
5. A stress testing device for precast concrete parts according to claim 1, characterized in that: A fixing bolt is installed between the positioning shell (601) and the stabilizing frame (2), and two sliding holes are provided on the positioning shell (601). The positioning plate (602) and the first positioning rod (603) are respectively inserted into the interior of the sliding holes. A first positioning rod (603) is provided on the outer side of the positioning plate (602), and a supporting spring is installed on the outer side of the first positioning rod (603). An inclined surface is provided at the bottom of the positioning plate (602).
6. A stress testing device for precast concrete parts according to claim 1, characterized in that: The push rod of the first electric cylinder (5) is provided with an extrusion block (501) at the bottom, the extrusion block (501) is provided with two inclined surfaces, and a friction block is provided at the position of the positioning plate (602), and the friction block is in contact with the inclined surface of the extrusion block (501).
7. A stress testing device for precast concrete parts according to claim 1, characterized in that: A sliding groove is provided on the inner side of the scale (7), and an indicator strip is provided on the outer side of the force adjustment block (305), the indicator strip extending into the interior of the sliding groove.
8. A stress testing device for precast concrete parts according to claim 1, characterized in that: The push rod of the second electric cylinder (901) is provided with a connecting plate (902) at the bottom position, and two vertical second positioning rods (903) are provided above the connecting plate (902). A mounting hole is provided on the mounting frame (8), and the second electric cylinder (901) is installed inside the mounting hole. A locking bolt is installed at the position of the mounting hole, and two sliding holes are provided at the outer position of the positioning hole, and the second positioning rods (903) are inserted into the interior of the sliding hole.
9. A stress testing device for precast concrete parts according to claim 1, characterized in that: The connecting plate (902) is installed between the first connecting shell (904) and the second connecting shell (906), two installation grooves are respectively provided on the top of the first connecting shell (904) and the second connecting shell (906), the top of the connecting plate (902) extends to the inside of the installation groove, connecting bolts are installed between the connecting plate (902), the first connecting shell (904) and the second connecting shell (906), a refrigerator (905) is installed inside the first connecting shell (904), a protective frame (907) is installed inside the second connecting shell (906), a heating wire (908) is installed above the protective frame (907), and a positioning sleeve is respectively provided on the outer side surface of the first connecting shell (904) and the second connecting shell (906), a control switch (909) is installed inside the positioning sleeve, and a buffer spring is installed at the bottom of the control switch (909).