Impact resistance testing device for concrete pipeline

Abstract

The invention provides a concrete pipeline impact resistance testing device, and relates to the technical field of concrete pipeline testing. The concrete pipeline impact resistance testing device comprises a device box, a conveying belt is fixedly connected to the inner wall of the bottom end of the device box, a first cavity is formed in the left portion of the inner wall of the rear end of the device box, a second cavity is formed in the middle of the inner wall of the rear end of the device box, and a third cavity is formed in the right portion of the inner wall of the rear end of the device box. According to the invention, charges in the strain process are converted into voltage signals and transmitted to the control system so as to be displayed on the corresponding display screen, and impact resistance experiment data at the temperature are observed after the test at the temperature stage is completed, so that the process of multiple tests at different temperatures is realized, and the test efficiency is improved. Therefore, concrete pipelines with high impact resistance can be screened out, and the phenomenon that the concrete pipelines are expanded or cracked when applied to different temperatures is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete pipe testing, and specifically to a device for testing the impact resistance of concrete pipes. Background Art

[0002] Concrete pipes are pipes made of concrete and are used to transport fluids, gases or other substances. Such pipes are usually used in fields such as municipal engineering, construction sites, drainage systems, sewage treatment plants, irrigation systems, etc. In order to ensure their strength and durability when subjected to external impacts, after their processing is completed, corresponding impact tests need to be carried out on them.

[0003] In the prior art, mostly, an impact hammer on a corresponding impact testing machine is used to extrude it, and data is transmitted to a corresponding display screen through a corresponding piezoelectric force sensor to provide corresponding test data. However, when the pipe is applied in different fields, it will be affected by different temperatures, causing it to undergo thermal expansion or cracking, and during the impact process, there is no corresponding positioning mechanism, which may affect its impact test data. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a device for testing the impact resistance of concrete pipes, which solves the problems of expansion or cracking that occur at different temperatures and deviation that occurs during the impact process.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A device for testing the impact resistance of concrete pipes, including a device box. The inner wall of the bottom end of the device box is fixedly connected with a conveyor belt. A first chamber is opened in the left part of the inner wall of the rear end of the device box, a second chamber is opened in the middle of the inner wall of the rear end of the device box, and a third chamber is opened in the right part of the inner wall of the rear end of the device box. A temperature control element is fixedly connected to the middle of the left side of the rear ends of the first chamber, the second chamber, and the third chamber. A temperature sensor is fixedly connected to the top of the left side of the rear ends of the first chamber, the second chamber, and the third chamber. The temperature control element and the temperature sensor are in an electrically connected relationship. On both sides of the inner wall of the top end of the device box, partition plates are fixedly connected. The left ends of the partition plates are fixedly connected with side plates. The front sides of the left ends of the side plates are fixedly connected with piezoelectric elements. In the middle of the ends of the side plates away from the partition plates, third electric push rods are fixedly connected. The driving ends of the third electric push rods are fixedly connected with push plates. In the middle of the ends of the push plates opposite to the third electric push rods, impact hammers are fixedly connected. Piezoelectric force sensors are fixedly connected to the front ends of the impact hammers. The piezoelectric elements and the piezoelectric force sensors are in an electrically connected relationship.

[0006] Preferably, fixing plates are fixedly connected to the inner walls at both the front and rear ends of the device box. L-shaped plates are fixedly connected to the rear sides of the top of the device box. Servo motors are fixedly connected to the tops of the L-shaped plates. The driving ends of the servo motors penetrate through the L-shaped plates and are fixedly connected to main shafts. First sprockets are fixedly connected to the outer diameters of the main shafts. Chains are meshed with the outer diameters of the first sprockets. Second sprockets are meshed with the inner walls at the rear ends of the chains. Sub-shafts are fixedly connected to the inner diameters of the second sprockets.

[0007] Preferably, the bottoms of the main shafts and the sub-shafts penetrate through the device box and the fixing plates and are fixedly connected to screws. Sliders are threadedly connected to the outer diameters of the screws. First electric push rods are fixedly connected to the opposite ends of the sliders. The driving ends of the first electric push rods are fixedly connected to engaging disks.

[0008] Preferably, the outer diameters of the sliders are slidably connected to the inner walls of the fixing plates. The bottoms of the screws are rotatably connected to the bottom inner walls of the fixing plates.

[0009] Preferably, second electric push rods are fixedly connected to both sides of the top of the groove of the partition plate. The driving ends of the two second electric push rods are fixedly connected to baffles. The outer diameters of the baffles are slidably connected to the groove of the partition plate.

[0010] Preferably, a pipeline to be tested is arranged on the top of the conveyor belt. The inner diameter of the pipeline to be tested is adapted to the outer diameter of the engaging disk.

[0011] Preferably, display bases are fixedly connected to the tops of the device box relative to the rear sides of the L-shaped plates. A console is fixedly connected to the rear of the device box. The console is electrically connected to a temperature control element, a temperature sensor, a piezoelectric element, and a piezoelectric force sensor.

[0012] Preferably, closing plates are rotatably connected to the tops of the grooves at the bottoms of both the left and right ends of the device box. An observation window is fixedly connected to the front of the device box.

[0013] Working principle: First, pull the handle on the left side of the device box to drive the corresponding closing plate to rotate. Then, place the pipeline body to be tested on the top of the conveyor belt and operate the conveyor belt through the corresponding driving member. After the staff observes through the observation window that the pipeline body to be tested moves to the same horizontal plane as the fixed plate in the first chamber, that is, when the whole pipeline body to be tested cannot be seen in the front view, stop running the conveyor belt. Then, operate the servo motor on the left side at the top of the device box to rotate forward through the control system, and drive the main shaft and the first sprocket to rotate through the servo motor. Since the first sprocket is engaged with the second sprocket through a chain, the process of driving the second sprocket to rotate is carried out. Then, drive the auxiliary shaft to transmit power through the second sprocket, and then drive the corresponding screws to transmit power through the main shaft and the auxiliary shaft respectively, so that the slider on its outer diameter moves downward first. Then, operate the first electric push rods to move inward through the control system, and make the clamping disks respectively embed into the through holes on the front and back sides of the pipeline body to be tested, and realize the process of clamping and positioning. Then, reverse the operation of the servo motor, drive the slider and the pipeline body to be tested to move upward through the screw. After observing from the side that it is at the same horizontal plane as the impact hammer, the temperature sensor in the first chamber transmits the temperature of this chamber to the control system. After the control system transmits an electrical signal to the corresponding temperature control element, and this temperature control element is a heating element, heat this temperature control element through this element. At the same time, operate the second electric push rod in the left partition through the control system and drive the baffle to move downward, and let it stand for a period of time. The time value can be obtained according to the two formulas: heating time = heat / power of the heating element and heat = mass * specific heat capacity * temperature difference. Then, a heat source chamber is formed in the first chamber. Then, operate the third electric push rod in the first chamber through the control system to drive the push plate and the impact hammer to strike and collide with the pipeline body to be tested. After the collision, a corresponding reaction force is generated and acts on the piezoelectric force sensor on the push plate. The piezoelectric force sensor is based on the piezoelectric effect, and the piezoelectric element is placed on one side of the chamber and within its controllable range, so as to generate a strain process. When the piezoelectric force sensor receives the corresponding reaction force, this strain is converted into charge and generates a corresponding voltage signal, which is transmitted to the control system and then displayed on the display screen of the corresponding display base. After the test at this temperature stage is completed, observe the anti-impact force test data at this temperature. Then, reverse the operation of the first electric push rod, the servo motor and the second electric push rod, so as to place the pipeline body to be tested back on the conveyor belt again, operate the driving member on the conveyor belt, move it continuously, and observe through the observation window whether there is a cracking phenomenon on the side of the pipeline body to be tested that is impacted and collided. If so, directly transport it out of the inside of the device box through the conveyor belt. If not, enter the second chamber. Similarly to the first chamber, through the operation of the servo motor in the top of the device box, position and clamp the corresponding pipeline body to be tested, and then operate the control system to drive the second electric push rods on both sides to drive the baffles to move downward, and rotate the servo motor forward.After moving the pipeline body to be tested to the same horizontal plane as the impact hammer in this chamber, the temperature of this chamber is transmitted to the control system through the temperature sensor in the second chamber. The control system transmits an electrical signal to the corresponding temperature control element, which is a constant temperature element, to ensure that the temperature range in the second chamber is 20°C - 25°C. After standing for a period of time, the surface temperature of the pipeline body to be tested is within the above range. Then, the control system operates the third electric push rod in the second chamber to drive the impact hammer to collide and impact it, and a voltage change process is generated through the corresponding piezoelectric element and piezoelectric force sensor. The corresponding signal is transmitted to the display screen on the corresponding display base, and the experimental data of its impact resistance is observed. Then, the first electric push rod, servo motor, and the second electric push rods on both sides in this area are operated in reverse, and the pipeline body to be tested is placed on the surface of the conveyor belt again. The driving part of the conveyor belt is driven again to move it forward, and whether there is any phenomenon of cracking or breakage on its surface is observed again. If there is, it is directly transported out. If not, it enters the third chamber. Similarly, for the steps of the first two chambers, the corresponding servo motor is operated, and the pipeline body to be tested is positioned and clamped again. Then, the control system drives the second electric push rod on the right to drive the temperature sensor to move downward to the surface of the conveyor belt, and the servo motor on the third chamber rotates forward to keep the pipeline body to be tested at the same horizontal plane as the impact hammer in this chamber. The corresponding temperature is transmitted to the control system through the temperature sensor in the third chamber. The control system transmits an electrical signal to the corresponding temperature control element, which is a cooling element, and the chamber is refrigerated through this element. After standing for a period of time, this chamber becomes a cold source chamber. Then, the control system operates the third electric push rod in the third chamber to drive the impact hammer to collide and impact it, and a flattening process is generated through the corresponding piezoelectric element and piezoelectric force sensor. The corresponding electrical signal is transmitted to the display screen of the corresponding display base. After passing through the data of its impact resistance, the first electric push rod, servo motor, and the second electric push rod on the right in this area are operated in reverse, and the pipeline body to be tested is placed back on the surface of the conveyor belt, and the driving part of the conveyor belt is driven to transport it out. Whether there is any phenomenon of tilting or bending on its surface is observed. If there is, it is unqualified. If not, the pipeline body to be tested passes the test, thus completing the process of multiple different temperature tests.

[0014] The present invention provides a device for testing the impact resistance of concrete pipes. It has the following beneficial effects:

[0015] 1. In the present invention, the temperature sensor in the first chamber transmits the temperature of this chamber to the control system. After the control system transmits an electrical signal to the corresponding temperature control element, and this temperature control element is a heating element, and through the process of heating this element by this element, and cooperating with the corresponding device to move downward, after forming an integral chamber and standing still, then through the control system operating the third electric push rod in the first chamber to drive the push plate and the impact hammer to strike and collide with the pipeline body to be tested. After the collision, a corresponding reaction force is generated and acts on the piezoelectric force sensor on the push plate. And the piezoelectric force sensor is based on the piezoelectric effect, and the piezoelectric element is placed on one side of the chamber and within its controllable range, thus generating a strain process. When the piezoelectric force sensor receives the corresponding reaction force, this strain is converted into charge and generates a corresponding voltage signal, which is transmitted to the control system, and then displayed on the display screen of the corresponding display base. After the test at this temperature stage is completed, observe the anti-impact force experimental data at this temperature, realizing the process of multiple tests at different temperatures, so as to screen out concrete pipelines with strong anti-impact ability and prevent them from expanding or cracking when applied at different temperatures.

[0016] 2. In the present invention, the control system operates the servo motor on the left side of the top of the device box to rotate forward, and the servo motor drives the main shaft and the first sprocket to rotate. Also, because the first sprocket is engaged with the second sprocket through a chain, the process of driving the second sprocket to rotate is carried out. Then, the second sprocket drives the auxiliary shaft to transmit power, and then through the main shaft and the auxiliary shaft respectively driving the corresponding screw rods to transmit power, and making the slider on its outer diameter move downward first. Then, through the control system operating the first electric push rods to move inward, and making the clamping disks respectively embed into the through holes on the front and rear sides of the pipeline body to be tested, and realizing the process of clamping and positioning, so as to prevent it from shifting when the corresponding impact hammer impacts it, thereby affecting the measured experimental data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the present invention;

[0018] Figure 2 is a sectional view of the device box of the present invention;

[0019] Figure 3 is a structural schematic diagram of the fixing plate of the present invention;

[0020] Figure 4 is a schematic diagram of the internal structure of the device box of the present invention;

[0021] Figure 5 is a structural schematic diagram of the side plate of the present invention;

[0022] Figure 6 is a partial sectional view of the device box of the present invention;

[0023] Figure 7 Rear perspective view of the device box of the present invention;

[0024] Figure 8 Schematic diagram of the temperature control system of the present invention;

[0025] Figure 9 Schematic diagram of the impact force control system of the present invention.

[0026] Wherein, 1. Device box; 2. Conveyor belt; 3. L-shaped plate; 4. Servo motor; 5. Main shaft; 6. First sprocket; 7. Chain; 8. Second sprocket; 9. Sub-shaft; 10. Fixed plate; 11. Screw; 12. Slide block; 13. First electric push rod; 14. Engagement disc; 15. First chamber; 16. Second chamber; 17. Third chamber; 18. Partition board; 19. Second electric push rod; 20. Baffle; 21. Temperature control element; 22. Temperature sensor; 23. Side plate; 24. Third electric push rod; 25. Piezoelectric element; 26. Push plate; 27. Impact hammer; 28. Piezoelectric force sensor; 29. Observation window; 30. Display base; 31. Console; 32. Sealing plate; 33. Pipeline body to be measured. Detailed implementation manners

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment:

[0029] As Figures 1-9As shown in the figure, an impact resistance test device for concrete pipes provided by an embodiment of the present invention includes a device box 1. An inner wall at the bottom end of the device box 1 is fixedly connected with a conveyor belt 2. A first chamber 15 is opened in the left part of the inner wall at the rear end of the device box 1, a second chamber 16 is opened in the middle of the inner wall at the rear end of the device box 1, and a third chamber 17 is opened in the right part of the inner wall at the rear end of the device box 1. A temperature control element 21 is fixedly connected to the middle part on the left side at the rear end of each of the first chamber 15, the second chamber 16, and the third chamber 17. A temperature sensor 22 is fixedly connected to the top part on the left side at the rear end of each of the first chamber 15, the second chamber 16, and the third chamber 17. The temperature control element 21 and the temperature sensor 22 are in an electrically connected relationship. On both sides of the inner wall at the top end of the device box 1, partition plates 18 are fixedly connected. Side plates 23 are fixedly connected to the left ends of the partition plates 18. Piezoelectric elements 25 are fixedly connected to the front sides of the left ends of the side plates 23. Third electric push rods 24 are fixedly connected to the middle parts of the ends of the side plates 23 away from the partition plates 18. The driving ends of the third electric push rods 24 are fixedly connected with push plates 26. Impact hammers 27 are fixedly connected to the middle parts of the ends of the push plates 26 opposite to the third electric push rods 24. Piezoelectric force sensors 28 are fixedly connected to the front ends of the impact hammers 27. The piezoelectric elements 25 and the piezoelectric force sensors 28 are in an electrically connected relationship. The temperature sensor 22 in the first chamber 15 transmits the temperature of this chamber to the control system. After the control system transmits an electrical signal to the corresponding temperature control element 21, and this temperature control element 21 is a heating element, and during the process of heating this element by this element, and in cooperation with corresponding devices to move downward to form an integral chamber and then stand still, then the third electric push rod 24 in the first chamber 15 is operated by the control system to drive the push plate 26 and the impact hammer 27 to strike and collide with the pipeline body 33 to be tested. After the collision, a corresponding reaction force is generated and acts on the piezoelectric force sensor 28 on the push plate 26. And the piezoelectric force sensor 28 is based on the piezoelectric effect, and the piezoelectric element 25 is placed on one side of the chamber and within its controllable range, thus generating a strain process. When the piezoelectric force sensor 28 receives the corresponding reaction force, this strain is converted into charge and generates a corresponding voltage signal, which is transmitted to the control system, and thus displayed on the display screen of the corresponding display base 30. And after the test at this temperature stage is completed, observe the impact resistance test data at this temperature, realizing the process of multiple tests at different temperatures, so as to screen out concrete pipes with strong impact resistance and prevent them from expanding or cracking when applied at different temperatures.

[0030] Secondly, fixing plates 10 are fixedly connected to the inner walls at both the front and rear ends of the device box 1. L-shaped plates 3 are fixedly connected to the rear sides of the top of the device box 1. Servo motors 4 are fixedly connected to the tops of the L-shaped plates 3. The driving ends of the servo motors 4 penetrate through the L-shaped plates 3 and are fixedly connected to main shafts 5. First sprockets 6 are fixedly connected to the outer diameters of the main shafts 5. Chains 7 are meshed with the outer diameters of the first sprockets 6. Second sprockets 8 are meshed with the inner walls at the rear ends of the chains 7. Secondary shafts 9 are fixedly connected to the inner diameters of the second sprockets 8. The bottoms of the main shafts 5 and the secondary shafts 9 penetrate through the device box 1 and the fixing plates 10 and are fixedly connected to screws 11. Sliders 12 are threadedly connected to the outer diameters of the screws 11. First electric push rods 13 are fixedly connected to the opposite ends of the sliders 12. Clamping discs 14 are fixedly connected to the driving ends of the first electric push rods 13. By operating the servo motor 4 on the left side of the top of the device box 1 to rotate forward through the control system, and driving the main shaft 5 and the first sprocket 6 to rotate through the servo motor 4. Also, since the first sprocket 6 is meshed with the second sprocket 8 through the chain 7, during the process of driving the second sprocket 8 to rotate, the secondary shaft 9 is driven through the second sprocket 8. Then, during the process of driving the corresponding screws 11 to rotate respectively through the main shaft 5 and the secondary shaft 9, the sliders 12 on their outer diameters move downward preferentially. Then, during the process of operating the first electric push rods 13 to move inward through the control system, the clamping discs 14 are respectively embedded into the through holes on the front and rear sides of the pipeline body 33 to be measured, and the process of clamping and positioning is achieved. Thus, when the corresponding impact hammer 27 impacts it, the phenomenon of its deviation is prevented, and then the measured experimental data is affected.

[0031] Among them, the outer diameters of the sliders 12 are slidably connected to the inner walls of the fixing plates 10, and the bottoms of the screws 11 are rotatably connected to the bottom inner walls of the fixing plates 10, ensuring the stable rotation of the screws 11 and the stable sliding of the corresponding sliders 12, so as to ensure the stable movement of the corresponding clamping discs 14 after clamping the corresponding pipeline body 33 to be measured.

[0032] Further explanation, second electric push rods 19 are fixedly connected to both sides of the top of the groove of the partition plate 18. Baffles 20 are fixedly connected to the driving ends of the two second electric push rods 19. The outer diameters of the baffles 20 are slidably connected to the grooves of the partition plate 18. During the process of operating the second electric push rods 19 to drive the baffles 20 to move through the control system, during the testing process, through this downward movement, and the first chamber 15 and the third chamber 17 need the cooperation of the corresponding closing plates 32, so that the first chamber 15, the second chamber 16 and the third chamber 17 form a relatively airtight chamber, and the process of corresponding temperature measurement is carried out.

[0033] Furthermore, a pipeline body 33 to be measured is arranged on the top of the conveyor belt 2. The inner diameter size of the pipeline body 33 to be measured is adapted to the outer diameter size of the clamping disc 14, ensuring the process of the clamping disc 14 clamping and positioning the pipeline body 33 to be measured with this aperture size.

[0034] In addition, display bases 30 are fixedly connected to the top of the device box 1 relative to the rear side of the L-shaped plate 3, and a control console 31 is fixedly connected to the rear end of the device box 1. The control console 31 is electrically connected to the temperature control element 21, the temperature sensor 22, the piezoelectric element 25, and the piezoelectric force sensor 28. The temperature control element 21 includes a heating element, a constant temperature element, and a cooling element. Among them, the heating element is a device for converting electrical energy or other forms of energy into heat energy, and its types include heating tubes and electric heating films, etc. Secondly, the constant temperature element is a device for maintaining a constant temperature, which generally refers to a thermostat. It performs feedback control according to a preset set temperature and can maintain a constant temperature by turning on or off the heating or cooling device. Furthermore, the cooling element is a device for removing heat energy from a system or device, and most of its devices are radiators and cooling fans, etc., and are used to adjust the temperature of the chamber. The control system in the control console 31 drives the above elements to perform corresponding functions.

[0035] In addition, closing plates 32 are rotatably connected to the top of the bottom grooves at the left and right ends of the device box 1. During the test, the closing plates 32 can be rotated, and the corresponding pipeline body 33 to be tested can be placed in. After canceling the pulling force on the closing plates 32, a relatively sealed chamber can be formed in cooperation with the corresponding second motor push rod 19, and a stable test can be carried out. An observation window 29 is fixedly connected to the front end of the device box 1, and the experimental process inside the device box 1 can be observed through the observation window 29.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test device for the impact resistance of concrete pipes, comprising a device box (1), characterized in that: The inner bottom wall of the device box (1) is fixedly connected with a conveyor belt (2). The left part of the inner rear wall of the device box (1) is provided with a first chamber (15). The middle part of the inner rear wall of the device box (1) is provided with a second chamber (16). The right part of the inner rear wall of the device box (1) is provided with a third chamber (17). The middle of the left side of the rear ends of the first chamber (15), the second chamber (16) and the third chamber (17) are all fixedly connected with temperature control elements (21). The top of the left side of the rear ends of the first chamber (15), the second chamber (16) and the third chamber (17) are all fixedly connected with temperature sensors (22). The temperature control element (21) and the temperature sensor (22) are both in an electrically connected relationship. Both sides of the inner top wall of the device box (1) are fixedly connected with partition plates (18). The left ends of the partition plates (18) are all fixedly connected with side plates (23). The front sides of the left ends of the side plates (23) are all fixedly connected with piezoelectric elements (25). The middle of the end of the side plate (23) far from the partition plate (18) is fixedly connected with a third electric push rod (24). The driving ends of the third electric push rods (24) are all fixedly connected with push plates (26). The middle of the end of the push plate (26) opposite to the third electric push rod (24) is fixedly connected with an impact hammer (27). The front ends of the impact hammers (27) are all fixedly connected with piezoelectric force sensors (28). The piezoelectric element (25) and the piezoelectric force sensor (28) are both in an electrically connected relationship.

2. The impact resistance testing device for concrete pipes according to claim 1, characterized in that: Fixed plates (10) are fixedly connected to the inner front and rear walls of the device box (1). L-shaped plates (3) are fixedly connected to the rear sides of the top of the device box (1). Servo motors (4) are fixedly connected to the tops of the L-shaped plates (3). The driving ends of the servo motors (4) penetrate through the L-shaped plates (3) and are fixedly connected with main shafts (5). First sprockets (6) are fixedly connected to the outer diameters of the main shafts (5). Chains (7) are meshed and connected to the outer diameters of the first sprockets (6). Second sprockets (8) are meshed and connected to the inner rear walls of the chains (7). Sub-shafts (9) are fixedly connected to the inner diameters of the second sprockets (8).

3. The impact resistance testing device for concrete pipes according to claim 2, wherein: The bottoms of the main shafts (5) and the sub-shafts (9) penetrate through the device box (1) and the fixed plates (10) and are fixedly connected with screws (11). Sliders (12) are threadedly connected to the outer diameters of the screws (11). First electric push rods (13) are fixedly connected to the opposite ends of the sliders (12). The driving ends of the first electric push rods (13) are fixedly connected with clamping discs (14).

4. The impact resistance testing device for concrete pipes according to claim 3, characterized in that: The outer diameters of the sliders (12) are all slidably connected to the inner walls of the fixed plates (10). The bottoms of the screws (11) are all rotatably connected to the inner bottom walls of the fixed plates (10).

5. The impact resistance testing device for concrete pipes according to claim 1, characterized in that: Second electric push rods (19) are fixedly connected to both sides of the top of the groove of the partition plate (18). The driving ends of the two second electric push rods (19) are fixedly connected with baffles (20). The outer diameters of the baffles (20) are all slidably connected to the grooves of the partition plate (18).

6. The impact resistance testing device for concrete pipes according to claim 1, wherein: At the top of the conveyor belt (2), there is a pipeline body to be measured (33), and the inner diameter of the pipeline body to be measured (33) is adapted to the outer diameter of the clamping disc (14).

7. The impact resistance testing device for concrete pipes according to claim 1, characterized in that: At the top of the device box (1) relative to the rear side of the L-shaped plate (3), there are display bases (30) fixedly connected, and at the rear end of the device box (1), there is a console (31) fixedly connected. The console (31) is electrically connected to the temperature control element (21), the temperature sensor (22), the piezoelectric element (25), and the piezoelectric force sensor (28).

8. The concrete pipe impact resistance testing device according to claim 1, characterized in that: At the top of the bottom grooves at both left and right ends of the device box (1), there are closing plates (32) rotatably connected, and at the front end of the device box (1), there is an observation window (29) fixedly connected.

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