CN213422842U - Internal and external pressure load test device for T-shaped groove of precast concrete - Google Patents
Internal and external pressure load test device for T-shaped groove of precast concrete Download PDFInfo
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- CN213422842U CN213422842U CN202022618149.XU CN202022618149U CN213422842U CN 213422842 U CN213422842 U CN 213422842U CN 202022618149 U CN202022618149 U CN 202022618149U CN 213422842 U CN213422842 U CN 213422842U
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Abstract
The utility model relates to an irritate row's channel and detect technical field, provide an interior, external pressure load test device in precast concrete T type groove, aim at solving the most violent destructive test for using the jack of current test means, the positioning means of jack is backward numerous and diverse during the experiment, and the problem that also has great error often to the test result includes a plurality of supporting legss of base case and base case lower extreme installation, and the upper end rear side of base case is installed and is erected the frame, and erects the upper end front side of frame and install quick-witted case, the equal fixed mounting in both sides between machine case and the base case has the side board, it is used for precast concrete T type inslot, external pressure load test's test mechanism to be equipped with between machine case and the base case to go up. The utility model discloses be particularly useful for the pressure test of precast concrete irrigation and drainage groove, the test process is simple, and the test result is accurate, has higher social use value and application prospect.
Description
Technical Field
The utility model relates to a irritate row's channel and detect technical field, concretely relates to inside and outside pressure load test device in precast concrete T type groove.
Background
Irrigation and water conservancy is a comprehensive scientific technology for developing irrigation and drainage, adjusting regional water conditions, improving the water condition of a farmland, preventing and treating drought, waterlogging, salt and alkali disasters and promoting stable yield and high yield of agriculture. The method generally comprises irrigation and drainage, and aims to perform storage, regulation, control, distribution and use on agricultural water resources through engineering technical measures, improve soil and cultivate fertilizer by combining the agricultural technical measures, and enlarge land utilization so as to achieve the aim of high and stable yield of agriculture.
Irrigation and water conservancy project measures aiming at agricultural yield increase are adopted in farmland water conservancy, namely, various water conservancy project measures are built and applied to adjust and improve farmland moisture conditions and regional water conservancy conditions, the capability of resisting natural disasters is improved, virtuous circle of ecological environment is promoted, and crop production is facilitated.
Irrigation and drainage channels are an important component of irrigation and water conservancy, and are water channels for connecting irrigation water sources and irrigation land to convey and distribute water taken from the water sources to various parts of irrigation areas. The irrigation and drainage channel mainly uses a precast concrete irrigation and drainage groove, the section of the precast concrete irrigation and drainage groove is approximately of an inverted trapezoidal structure, one side of the precast concrete irrigation and drainage groove is lower, and the other side of the precast concrete irrigation and drainage groove is higher.
After the existing T-shaped precast concrete irrigation and drainage groove is produced, the load capacity of the existing precast concrete irrigation and drainage groove needs to be detected so as to ensure that the quality specification of the existing precast concrete T-shaped irrigation and drainage groove meets GB/T1.1-2009 Standard work guide, however, most of the existing test means are violent destructive tests using jacks, the positioning means of the jacks are backward and complicated during the tests, and the test results often have large errors. Therefore, an internal and external pressure load test device for a T-shaped groove of precast concrete is provided.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides an inside and outside pressure load test device in precast concrete T type groove has overcome prior art not enough, reasonable in design, and compact structure aims at solving the most violent destructive test for using the jack of current test means, and the means of location of jack is backward numerous and complicated during the experiment, and the test result also often has the problem of great error.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
an internal and external pressure load test device of a precast concrete T-shaped groove comprises a base box and a plurality of supporting legs arranged at the lower end of the base box, wherein a vertical rack is arranged at the rear side of the upper end of the base box, an upper machine box is arranged at the front side of the upper end of the vertical rack, side plates are fixedly arranged at two sides between the upper machine box and the base box,
a testing mechanism for testing the internal and external pressure loads of the T-shaped groove of the precast concrete is arranged between the upper case and the base case, the testing mechanism comprises an upper lifting oil cylinder vertically and fixedly mounted on the bottom wall of the upper case, an upper load module horizontally arranged is mounted at the telescopic end of the upper lifting oil cylinder, a lower positioning module is arranged below the upper load module in parallel, the lower positioning module is fixedly mounted on the telescopic end of the lower lifting oil cylinder, and the cylinder body of the lower lifting oil cylinder extends to the inner cavity of the base case and is fixedly mounted on the inner bottom wall of the base case;
the lifting device is characterized by also comprising a lifting block which is slidably arranged in the inner cavity of the vertical rack, the lower end of the lifting block is arranged on the telescopic end of a spring telescopic rod, the spring telescopic rod is fixedly arranged on the inner wall of the vertical rack, a plurality of propelling cylinders are horizontally arranged on the front side of the lifting block, the telescopic ends of the propelling cylinders penetrate through a strip-shaped groove formed in the front side of the vertical rack and are provided with a same mounting plate, a vertically arranged bidirectional cylinder is arranged on the front side of the mounting plate through a cylinder seat, and inner load modules are arranged on two telescopic ends of the bidirectional cylinder;
the pressure gauge is arranged in the inner cavity of the upper case;
go up both sides between quick-witted case and the base case and be equipped with the cell body positioning mechanism that is used for precast concrete T type groove location, cell body positioning mechanism sets up the locating plate in two side boards inboards including the symmetry, the actuating lever that sets up around all installing to one side that two locating plates were carried on the back mutually, the rear end of actuating lever extends to erecting frame inner chamber and installs the sliding block, sliding block and erecting frame inner chamber sliding connection, and the middle part screw thread of sliding block is inserted and is equipped with the lead screw, two lead screw one sides that carry on the back mutually all rotate and install on the inner wall of erecting the frame, and driven bevel gear is all installed to two opposite one sides of lead screw, two driven bevel gear meshes there is same drive bevel gear, drive bevel gear fixed mounting is on servo motor's output, and servo motor passes.
Preferably, two upper positioning slide bars are inserted in parallel at the upper parts of the side walls of the two positioning plates, and two ends of each upper positioning slide bar are fixedly arranged on the inner walls of the two side plates.
Preferably, the rear side of the lower part of the side wall of the positioning plate is inserted with a lower positioning slide rod in parallel, and two ends of the lower positioning slide rod are fixedly arranged on the inner walls of the two side plates.
Preferably, a lifting notch matched with the lower positioning module is formed in the top wall of the base box.
Preferably, two horizontal through holes used for driving the driving rod to slide are symmetrically formed in the front wall of the vertical frame corresponding to the positions of the two screw rods.
Preferably, go up the flexible end of lift cylinder and two-way cylinder all install with pressure sensor, and the pressure gauge is connected with three pressure sensor through the data line.
Preferably, the bidirectional cylinder is arranged at a middle position between the two side plates.
Preferably, the control box is embedded in the front side of the upper case, the control panel is arranged on the front side of the control box, and the control panel is provided with a control button and a display screen.
(III) advantageous effects
The embodiment of the utility model provides an inside and outside pressure load test device in precast concrete T type groove possesses following beneficial effect:
1. through the combined structure of the base box, the lower positioning module and the lower lifting oil cylinder, when the T-shaped precast concrete groove is turned over and is opened backwards and is placed into the upper end of the base box of the testing device, the lower lifting oil cylinder is started to drive the lower positioning module to move upwards to contact the lower end of the turned T-shaped precast concrete groove and support the T-shaped precast concrete groove in a matched manner, and the test is ensured.
2. Through the combined structure of the upper lifting oil cylinder, the upper load module, the lower positioning module and the lower lifting oil cylinder, when the external pressure load test of the T-shaped groove of the precast concrete is carried out, the upper lifting oil cylinder is started to push the upper load module to move downwards to apply pressure to the T-shaped groove of the precast concrete until the T-shaped groove of the precast concrete is cracked, the pressure of each cracked period of the T-shaped groove of the precast concrete is recorded in real time through the pressure gauge, and the maximum external pressure load value of the T-shaped groove of the precast concrete is obtained.
3. Through the combined structure of the bidirectional air cylinder and the internal load module, when the internal pressure load test of the T-shaped groove of the precast concrete is carried out, the propelling air cylinder is started, the mounting plate and the bidirectional air cylinder at the front end of the mounting plate are propelled to enter the groove of the T-shaped groove of the precast concrete, then the bidirectional air cylinder is started, the internal load modules at two telescopic ends of the bidirectional air cylinder are contacted and give pressure from the groove to the T-shaped groove of the precast concrete, the pressure of each cracked period of the T-shaped groove of the precast concrete is recorded in real time through the pressure gauge, and the maximum internal pressure load value of the T-shaped groove.
4. Through the setting of cell body positioning mechanism, before experimental, servo motor starts, drives drive bevel gear and rotates, drives two driven bevel gear of bevel gear meshing, and then drives two sliding blocks that the screw thread cover was established through the rotation of two lead screws and be close to each other or keep away from each other, through the connection of actuating lever, drives two locating plates and is close to each other and realize the location centre gripping to precast concrete T type groove, guarantees that inside and outside pressure load test's stability goes on.
5. The utility model discloses an effectual integrated precast concrete T type groove of test device internal pressure load test and internal pressure load test, the test process is simple convenient, and the test result clearly shows and guarantees accurately, has effectually compensatied the precast concrete T type groove in the processing completion back, the vacancy in the aspect of the external pressure load test, provides data support for improving the processingquality in precast concrete T type groove.
Drawings
The above features, technical features, advantages and means of realisation of the apparatus for testing internal and external pressure loads of a T-shaped channel of precast concrete will be further described in the following detailed description of preferred embodiments thereof with reference to the accompanying drawings.
Fig. 1 is a front view of the structure of the present invention;
FIG. 2 is a side sectional view of the present invention;
FIG. 3 is a cross-sectional view of the structure A-A of FIG. 1 according to the present invention;
fig. 4 is the utility model discloses well precast concrete T type groove's schematic structure.
In the figure: the device comprises a base box 1, supporting legs 2, a vertical frame 3, side plates 4, an upper case 5, a control box 6, a control panel 61, a testing mechanism 7, an ascending and descending oil cylinder 71, an upper load module 72, a lower positioning module 73, a lower ascending and descending oil cylinder 74, a bidirectional air cylinder 75, an inner load module 76, an air cylinder seat 77, a mounting plate 78, a propelling air cylinder 79, a lifting block 710, a spring telescopic rod 711, a pressure gauge 712, a precast concrete T-shaped groove 8, a groove body positioning mechanism 9, a positioning plate 91, a driving rod 92, an upper positioning slide rod 93, a lower positioning slide rod 94, a slide block 95, a lead screw 96, a driven bevel gear 97, a driving bevel gear 98 and a servo motor 99.
Detailed Description
The invention will be further described with reference to the following figures 1-4 and examples:
example 1
An internal and external pressure load test device of a precast concrete T-shaped groove comprises a base box 1 and a plurality of supporting legs 2 arranged at the lower end of the base box 1, a vertical frame 3 is arranged at the rear side of the upper end of the base box 1, an upper machine box 5 is arranged at the front side of the upper end of the vertical frame 3, side plates 4 are fixedly arranged at two sides between the upper machine box 5 and the base box 1,
in this embodiment, as shown in fig. 4, the section of the precast concrete T-shaped groove 8 is an inverted trapezoidal structure with an opening at the upper end, and one side edge is slightly higher than the other side edge, and with reference to fig. 2, during the test, the precast concrete T-shaped groove 8 is turned over, and the opening faces backwards, and is placed at the upper end of the base box 1 of the test device;
in this embodiment, as shown in fig. 1-3, a testing mechanism 7 for internal and external pressure load tests of a precast concrete T-shaped groove 8 is arranged between the upper case 5 and the base case 1, the testing mechanism 7 includes an ascending and descending cylinder 71 vertically and fixedly mounted on the bottom wall of the upper case 5, an upper load module 72 horizontally arranged is mounted at the telescopic end of the ascending and descending cylinder 71, a lower positioning module 73 is arranged below the upper load module 72 in parallel, the lower positioning module 73 is fixedly mounted on the telescopic end of the lower ascending and descending cylinder 74, and the cylinder body of the lower ascending and descending cylinder 74 extends to the inner cavity of the base case 1 and is fixedly mounted on the inner bottom wall of the base case 1;
the lifting device is characterized by further comprising a lifting block 710 which is slidably mounted in an inner cavity of the vertical rack 3, the lower end of the lifting block 710 is mounted at the telescopic end of a spring telescopic rod 711, the spring telescopic rod 711 is fixedly mounted on the inner wall of the vertical rack 3, a plurality of propelling cylinders 79 are horizontally mounted at the front side of the lifting block 710, the telescopic ends of the propelling cylinders 79 penetrate through a strip-shaped groove formed in the front side of the vertical rack 3 and are provided with a same mounting plate 78, a vertically-arranged bidirectional cylinder 75 is mounted at the front side of the mounting plate 78 through a cylinder seat 77, and inner load modules 76 are mounted at two telescopic ends of the bidirectional cylinder 75;
a pressure gauge 712 arranged in the inner cavity of the upper case 5;
in the embodiment, the precast concrete T-shaped groove 8 is turned over, the opening faces backwards, the precast concrete T-shaped groove is placed at the upper end of a base box 1 of the testing device, a lower lifting oil cylinder 74 is started to drive a lower positioning module 73 to move upwards to contact the lower end of the turned precast concrete T-shaped groove 8 and support the precast concrete T-shaped groove 8 in a matched manner, when an external pressure load test of the precast concrete T-shaped groove 8 is carried out, an upper lifting oil cylinder 71 is started to push an upper load module 72 to move downwards to press the precast concrete T-shaped groove 8 until the precast concrete T-shaped groove 8 is cracked, and the pressure of each cracked period of the precast concrete T-shaped groove 8 is recorded in real time through a pressure gauge 712, so that the maximum external pressure load value of the precast;
when a pressure load test is carried out in the precast concrete T-shaped groove 8, the propulsion cylinder 79 is started to propel the mounting plate 78 and the bidirectional cylinder 75 at the front end of the mounting plate 78 to enter the groove of the precast concrete T-shaped groove 8, then the bidirectional cylinder 75 is started, the internal load modules 76 at the two telescopic ends of the bidirectional cylinder 75 are contacted and give pressure from the groove to the precast concrete T-shaped groove 8, the pressure of each cracked period of the precast concrete T-shaped groove 8 is recorded in real time through the pressure gauge 712, and the maximum internal pressure load value of the precast concrete T-shaped groove 8 is obtained;
it can be understood that when the bidirectional cylinder 75 is started and bidirectional pressure is applied to the upper side and the lower side, the spring expansion link 711 is matched with the lifting block 710 to realize height floating of the bidirectional cylinder 75, and accurate pressure measurement and calculation of the bidirectional cylinder 75 are ensured.
In the embodiment, as shown in fig. 1-3, two sides between the upper case 5 and the base case 1 are provided with groove body positioning mechanisms 9 for positioning the T-shaped precast concrete groove 8, each groove body positioning mechanism 9 includes positioning plates 91 symmetrically arranged on inner sides of the two side plates 4, driving rods 92 arranged in the front-back direction are mounted on opposite sides of the two positioning plates 91, the rear ends of the driving rods 92 extend into an inner cavity of the vertical frame 3 and are provided with sliding blocks 95, the sliding blocks 95 are slidably connected with the inner cavity of the vertical frame 3, screw rods 96 are inserted into middle threads of the sliding blocks 95, opposite sides of the two screw rods 96 are rotatably mounted on the inner wall of the vertical frame 3, opposite sides of the two screw rods 96 are respectively provided with driven bevel gears 97, the two driven bevel gears 97 are engaged with the same driving bevel gear 98, the driving bevel gear 98 is fixedly mounted on an output end of a, the servo motor 99 is fixedly arranged on the inner wall of the vertical rack 3 through a motor rack;
in the embodiment, the servo motor 99 is started to drive the driving bevel gear 98 to rotate, the driving bevel gear 98 is meshed with the two driven bevel gears 97, the two sliding blocks 95 sleeved with the threads are driven to mutually approach or separate from each other through the rotation of the two screw rods 96, and the two positioning plates 91 are driven to mutually approach through the connection of the driving rod 92 so as to realize the positioning and clamping of the precast concrete T-shaped groove 8; or the two positioning plates 91 are driven to be away from each other so as to be convenient for putting in and taking out the precast concrete T-shaped groove 8 for the test.
In this embodiment, as shown in fig. 3, a lifting notch matched with the lower positioning module 73 is formed in the top wall of the base box 1, so that the lower positioning module 73 can enter the base box 1 downwards, and the prefabricated concrete T-shaped groove 8 can be conveniently pushed into the test device for testing after being turned.
In this embodiment, as shown in fig. 1, two horizontal through holes for sliding the driving rods 92 are symmetrically formed in the front wall of the vertical frame 3 corresponding to the two lead screws 96, so that the two driving rods 92 can drive the two positioning plates 91 to position or release the precast concrete T-shaped groove 8, and the stability of the test is maintained.
In this embodiment, the telescopic ends of the upper lift cylinder 71 and the bidirectional cylinder 75 are both installed with pressure sensors, and the pressure gauge 712 is connected with the three pressure sensors through data lines, so as to ensure that the test result of the pressure gauge 712 is collected by the pressure gauge 712.
In this embodiment, as shown in fig. 1 and 3, the bidirectional cylinder 75 is disposed in the middle between the two side plates 4, so as to ensure the stable internal pressure load test of the T-shaped precast concrete groove 8, and also ensure that the bidirectional cylinder is located in the middle of the T-shaped precast concrete groove 8 during the test, thereby ensuring the accuracy of the test result.
In this embodiment, as shown in fig. 1 and 2, a control box 6 is embedded in the front side of the upper case 5, an integrated control circuit is built in the control box 6, a control panel 61 is arranged on the front side of the control box 6, and a control button and a display screen are installed on the control panel 61, in this embodiment, the model of the PLC controller is siemens S7-300, and the control panel 61 is connected with a pressure gauge 712, an ascending and descending cylinder 71, a descending and ascending cylinder 74, a bidirectional cylinder 75, a propulsion cylinder 79 and a servo motor 99 through electrical control lines;
the tester combines the real-time display of the display screen through controlling the control buttons on the control panel 61, coordinates and controls all parts of the test device to run coordinately, effectively tests the test data of the internal and external pressure loads of the tested precast concrete T-shaped groove 8 and displays and records the test data, and ensures the convenient display and accuracy of the test.
Example 2
The difference between the present embodiment and embodiment 1 is that, as shown in fig. 1-3, two upper positioning sliding rods 93 are inserted in parallel at the upper portions of the side walls of the two positioning plates 91, and both ends of each upper positioning sliding rod 93 are fixedly mounted on the inner walls of the two side plates 4; lower positioning slide bars 94 are inserted in parallel at the rear sides of the lower portions of the side walls of the positioning plates 91, and two ends of each lower positioning slide bar 94 are fixedly mounted on the inner walls of the two side edge plates 4, so that the two positioning plates 91 are effectively guaranteed to be parallel and close to or far away from each other, and accurate positioning and releasing of the T-shaped precast concrete groove 8 are achieved.
Other undescribed structures refer to example 1.
The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.
Claims (8)
1. An internal and external pressure load test device of a precast concrete T-shaped groove comprises a base box and a plurality of supporting legs arranged at the lower end of the base box, wherein a vertical frame is arranged at the rear side of the upper end of the base box, and an upper machine box is arranged at the front side of the upper end of the vertical frame, and is characterized in that side plates are fixedly arranged at two sides between the upper machine box and the base box,
a testing mechanism for testing the internal and external pressure loads of the T-shaped groove of the precast concrete is arranged between the upper case and the base case, the testing mechanism comprises an upper lifting oil cylinder vertically and fixedly mounted on the bottom wall of the upper case, an upper load module horizontally arranged is mounted at the telescopic end of the upper lifting oil cylinder, a lower positioning module is arranged below the upper load module in parallel, the lower positioning module is fixedly mounted on the telescopic end of the lower lifting oil cylinder, and the cylinder body of the lower lifting oil cylinder extends to the inner cavity of the base case and is fixedly mounted on the inner bottom wall of the base case;
the lifting device is characterized by also comprising a lifting block which is slidably arranged in the inner cavity of the vertical rack, the lower end of the lifting block is arranged on the telescopic end of a spring telescopic rod, the spring telescopic rod is fixedly arranged on the inner wall of the vertical rack, a plurality of propelling cylinders are horizontally arranged on the front side of the lifting block, the telescopic ends of the propelling cylinders penetrate through a strip-shaped groove formed in the front side of the vertical rack and are provided with a same mounting plate, a vertically arranged bidirectional cylinder is arranged on the front side of the mounting plate through a cylinder seat, and inner load modules are arranged on two telescopic ends of the bidirectional cylinder;
the pressure gauge is arranged in the inner cavity of the upper case;
go up both sides between quick-witted case and the base case and be equipped with the cell body positioning mechanism that is used for precast concrete T type groove location, cell body positioning mechanism sets up the locating plate in two side boards inboards including the symmetry, the actuating lever that sets up around all installing to one side that two locating plates were carried on the back mutually, the rear end of actuating lever extends to erecting frame inner chamber and installs the sliding block, sliding block and erecting frame inner chamber sliding connection, and the middle part screw thread of sliding block is inserted and is equipped with the lead screw, two lead screw one sides that carry on the back mutually all rotate and install on the inner wall of erecting the frame, and driven bevel gear is all installed to two opposite one sides of lead screw, two driven bevel gear meshes there is same drive bevel gear, drive bevel gear fixed mounting is on servo motor's output, and servo motor passes.
2. The internal and external pressure load test device of precast concrete T-shaped groove of claim 1, characterized in that: two upper positioning slide bars are inserted in parallel at the upper parts of the side walls of the two positioning plates, and two ends of each upper positioning slide bar are fixedly arranged on the inner walls of the two side plates.
3. The internal and external pressure load test device of precast concrete T-shaped groove of claim 1, characterized in that: and lower positioning slide rods are inserted in parallel at the rear side of the lower part of the side wall of the positioning plate, and two ends of each lower positioning slide rod are fixedly arranged on the inner walls of the two side plates.
4. The internal and external pressure load test device of precast concrete T-shaped groove of claim 1, characterized in that: and the top wall of the base box is provided with a lifting notch matched with the lower positioning module.
5. The internal and external pressure load test device of precast concrete T-shaped groove of claim 1, characterized in that: two horizontal through holes used for driving the driving rod to slide are symmetrically formed in the front wall of the vertical rack corresponding to the positions of the two screw rods.
6. The internal and external pressure load test device of precast concrete T-shaped groove of claim 1, characterized in that: go up the flexible end of lift cylinder and two-way cylinder all install with pressure sensor, and the pressure gauge is connected with three pressure sensor through the data line.
7. The internal and external pressure load test device of precast concrete T-shaped groove of claim 1, characterized in that: the bidirectional cylinder is arranged in the middle between the two side plates.
8. The internal and external pressure load test device of precast concrete T-shaped groove of claim 1, characterized in that: the front side of going up the quick-witted case inlays and is equipped with the control box, and the front side of control box is equipped with control panel, installs control button and display screen on the control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022618149.XU CN213422842U (en) | 2020-11-12 | 2020-11-12 | Internal and external pressure load test device for T-shaped groove of precast concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022618149.XU CN213422842U (en) | 2020-11-12 | 2020-11-12 | Internal and external pressure load test device for T-shaped groove of precast concrete |
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| CN213422842U true CN213422842U (en) | 2021-06-11 |
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| CN202022618149.XU Active CN213422842U (en) | 2020-11-12 | 2020-11-12 | Internal and external pressure load test device for T-shaped groove of precast concrete |
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| CN (1) | CN213422842U (en) |
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