A testing device for bridge pore grouting material pressure bleeding rate experiment

Abstract

The utility model relates to the technical field of pressure grout detection, and disclose a kind of for bridge hole pressure grout pressure bleeding rate experiment's testing device, including bottom plate, and the top plate located above bottom plate, and fixedly installed between bottom plate and top plate support column, the end of top plate away from bottom plate is equipped with the mounting hole of through type, the inner surface of top plate is embedded and is installed with bleeding cylinder.This for bridge hole pressure grout pressure bleeding rate experiment's testing device, through the cooperation component of lock hook and lock catch, the quick fixed connection of connecting sleeve and bleeding cylinder is realized, and through four groups of annular distribution's lock hook and lock catch, the connecting strength between connecting sleeve and bleeding cylinder is improved, leakage can be effectively avoided in connecting place in the process of pressure experiment, and through four groups of equidistant distribution's sealing ring, the sealing between bleeding cylinder and connecting sleeve is further enhanced, effectively prevent pressure grout from connecting place under the action of pressure and seep, avoid the waste of experimental material and the pollution of experimental environment.

Description

Technical Field

[0001] This utility model relates to the field of grout testing technology, specifically a testing device for testing the pressure bleeding rate of grout in bridge ducts. Background Technology

[0002] In bridge construction, the performance of grouting materials plays a crucial role in the durability and stability of the bridge structure. Pressure bleeding rate, as one of the important indicators for evaluating the quality of grouting materials, directly reflects the amount of water released under pressure. Its value directly affects the density and strength of the grouting material, and thus the protective effect on the prestressing tendons and the service life of the bridge. Therefore, accurately measuring the pressure bleeding rate of grouting materials is a vital step in ensuring the quality of bridge engineering.

[0003] In existing testing devices used for pressure bleeding rate tests of grouting materials in bridge ducts, most of the bleeding cylinders and connecting sleeves are connected by threads. During the pressure bleeding rate test, continuous pressure may cause the threads to loosen, thereby damaging the sealing structure and causing pressure leakage and water seepage, resulting in the loss of experimental data. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a testing device for the pressure bleeding rate test of grouting material in bridge ducts, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted in this utility model is: a testing device for the pressure bleeding rate test of grouting material in bridge ducts, comprising a base plate and a top plate above the base plate, a support column fixedly installed between the base plate and the top plate, a through-hole being provided at the end of the top plate away from the base plate, a bleeding cylinder being embedded in the inner surface of the top plate, a bleeding cover being flanged at the end of the bleeding cylinder near the top plate, a pressure gauge being provided on the top of the bleeding cover, a connecting sleeve being provided on the side of the bleeding cylinder away from the bleeding cover, and a connecting sleeve being provided on the side of the top plate near the bleeding cover. A clamping device is provided on the side. A locking hook is fixedly installed on the outer surface of the end of the draining cylinder near the connecting sleeve. A locking buckle is fixedly installed on the outer surface of the end of the connecting sleeve near the draining cylinder. A discharge valve is provided on the end of the connecting sleeve away from the draining cylinder. A fixing plate is fixedly installed in the center of the end of the bottom plate near the top plate. A support rod is fixedly installed on the top of the fixing plate. A connecting block is fixedly installed on the end of the support rod away from the fixing plate. A clamp is rotatably installed on the inner surface of the end of the connecting block away from the support rod. A feeding pipe is provided on the inner surface of the clamp.

[0006] Preferably, the inner diameter of the mounting hole is the same as the outer diameter of the drainage tube, and the outer diameter of the drainage cap is larger than the outer diameter of the drainage tube.

[0007] By using the above technical solution, the inner diameter of the mounting hole is the same as the outer diameter of the water-draining tube, and the outer diameter of the water-draining cover is larger than the outer diameter of the water-draining tube, ensuring that the water-draining tube is stably inserted into the top plate, thus achieving the initial positioning and installation of the water-draining tube.

[0008] Preferably, the clamping device includes a handwheel, with a screw threadedly connected to the top plate fixedly installed at one end of the handwheel near the top plate, and a pressure plate rotatably installed at the other end of the screw away from the handwheel.

[0009] The above technical solution includes a clamping device. After the water-bleeding component is inserted into the installation hole, the operator can manually turn the handwheel. Through the threaded connection between the screw and the top plate, the height of the pressure plate can be adjusted until the pressure plate is in close contact with the water-bleeding cover, ensuring the stability of the water-bleeding cylinder during the testing process.

[0010] Preferably, the locking hook and the locking buckle are mating components, and the locking hook and the locking buckle are provided in four identical sets, and the locking hook and the locking buckle are arranged in a ring around the center line of the water-draining cylinder.

[0011] The above technical solution, using hooks and buckles as cooperating components, enables a quick and secure connection between the connecting sleeve and the water-draining cylinder. Furthermore, by setting four sets of ring-shaped hooks and buckles, the connection strength between the connecting sleeve and the water-draining cylinder is improved, effectively preventing leakage at the connection point during pressure testing.

[0012] Preferably, a sealing ring is embedded in the outer surface of the end of the water-draining tube that is close to the connecting sleeve and far from the locking hook. The sealing rings are provided in four identical sets and are located at the bottom of the water-draining tube and are distributed at equal intervals.

[0013] The above technical solution, through four sets of equally spaced sealing rings, further enhances the sealing between the water-permeable tube and the connecting sleeve, effectively preventing the grout from seeping out from the connection under pressure, thus avoiding waste of experimental materials and pollution of the experimental environment.

[0014] Preferably, the fixed plate has a positioning groove at the end away from the base plate, and the positioning groove is adapted to the bottom of the loading tube.

[0015] The above technical solution, by matching the positioning groove with the bottom of the loading pipe, facilitates the positioning and installation of the loading pipe, ensuring that it remains in the same vertical line as the discharge valve during the material receiving process, thus preventing the leakage of grout.

[0016] Preferably, a rubber pad is bonded to the inner surface of the clamp, and the inner diameter of the clamp is the same as the outer diameter of the loading pipe.

[0017] The above technical solution involves bonding a rubber pad to the inner surface of the clamp, with the inner diameter of the clamp being the same as the outer diameter of the loading tube. This tightly fixes the loading tube to the connecting block. The rubber pad also increases the friction between the clamp and the loading tube, further preventing the loading tube from loosening. In addition, the rubber pad has a certain degree of elasticity, which can buffer the vibrations that may occur during the experiment, preventing the loading tube from being damaged by vibration. The design of the clamp also facilitates the quick assembly and disassembly of the loading tube.

[0018] Compared with the prior art, this utility model provides a testing device for the pressure bleeding rate test of grouting material in bridge ducts, which has the following beneficial effects:

[0019] 1. This testing device for the pressure bleeding rate test of grouting material in bridge ducts uses hooks and buckles as cooperating components to achieve a quick and fixed connection between the connecting sleeve and the bleeding cylinder. By setting four sets of ring-shaped hooks and buckles, the connection strength between the connecting sleeve and the bleeding cylinder is improved, which can effectively prevent leakage at the connection during the pressure test. Furthermore, the sealing performance between the bleeding cylinder and the connecting sleeve is further enhanced by four sets of equally spaced sealing rings, which effectively prevents the grouting material from seeping out from the connection under pressure, thus avoiding waste of experimental materials and pollution of the experimental environment.

[0020] 2. The testing device used for the pressure bleeding rate test of grouting material in bridge ducts is equipped with a clamping device. After the bleeding component is inserted into the installation hole, the operator can turn the handwheel and adjust the height of the pressure plate through the threaded connection between the screw and the top plate until the pressure plate is in close contact with the bleeding cover, ensuring the stability of the bleeding cylinder during the testing process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a three-dimensional structural diagram of the top plate of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the water-draining cylinder of this utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the clamping device and the top plate of this utility model;

[0026] Figure 6 This is a schematic diagram of the installation structure of the loading pipe and clamp of this utility model.

[0027] The components are as follows: 1. Base plate; 2. Top plate; 3. Support column; 4. Mounting hole; 5. Drainage cylinder; 6. Drainage cover; 7. Pressure gauge; 8. Connecting sleeve; 9. Clamping device; 901. Handwheel; 902. Screw; 903. Pressure plate; 10. Locking hook; 11. Sealing ring; 12. Locking buckle; 13. Discharge valve; 14. Fixing plate; 15. Positioning groove; 16. Support rod; 17. Connecting block; 18. Clamp; 19. Loading pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1: As Figure 1-6 As shown, this utility model provides a testing device for the pressure bleeding rate test of grouting material in bridge ducts, including a base plate 1 and a top plate 2 located above the base plate 1. A support column 3 is fixedly installed between the base plate 1 and the top plate 2. A through-hole 4 is opened at the end of the top plate 2 away from the base plate 1. A bleeding cylinder 5 is embedded in the inner surface of the top plate 2. A bleeding cover 6 is flanged to the end of the bleeding cylinder 5 near the top plate 2. A pressure gauge 7 is installed on the top of the bleeding cover 6. A connecting sleeve 8 is provided on the side of the bleeding cylinder 5 away from the bleeding cover 6. A clamping device is provided on the side of the top plate 2 near the bleeding cover 6. 9. A locking hook 10 is fixedly installed on the outer surface of the end of the water-draining cylinder 5 near the connecting sleeve 8. A locking buckle 12 is fixedly installed on the outer surface of the end of the connecting sleeve 8 near the water-draining cylinder 5. A discharge valve 13 is provided at the end of the connecting sleeve 8 away from the water-draining cylinder 5. A fixing plate 14 is fixedly installed in the center of the end of the bottom plate 1 near the top plate 2. A support rod 16 is fixedly installed on the top of the fixing plate 14. A connecting block 17 is fixedly installed at the end of the support rod 16 away from the fixing plate 14. A clamp 18 is rotatably installed on the inner surface of the end of the connecting block 17 away from the support rod 16. A feeding pipe 19 is provided on the inner surface of the clamp 18.

[0030] Specifically, the inner diameter of the mounting hole 4 is the same as the outer diameter of the drain tube 5, and the outer diameter of the drain cover 6 is larger than the outer diameter of the drain tube 5. The advantage is that by setting the inner diameter of the mounting hole 4 to be the same as the outer diameter of the drain tube 5, and the outer diameter of the drain cover 6 to be larger than the outer diameter of the drain tube 5, it is ensured that the drain tube 5 is stably inserted into the top plate 2, thus achieving the initial positioning and installation of the drain tube 5.

[0031] Specifically, the clamping device 9 includes a handwheel 901. A screw 902, threadedly connected to the top plate 2, is fixedly installed at the end of the handwheel 901 closest to the top plate 2. A pressure plate 903 is rotatably installed at the end of the screw 902 furthest from the handwheel 901. The advantage is that, with the clamping device 9, after the water-draining component is inserted into the mounting hole 4, the operator can manually rotate the handwheel 901. Through the threaded connection between the screw 902 and the top plate 2, the height of the pressure plate 903 can be adjusted until it is in tight contact with the water-draining cover 6, ensuring the stability of the water-draining cylinder 5 during the testing process.

[0032] Specifically, the locking hook 10 and the locking buckle 12 are mating components, and four identical sets of locking hooks 10 and locking buckles 12 are provided, arranged in a ring around the center line of the water-draining cylinder 5. The advantage is that by using the locking hooks 10 and locking buckles 12 as mating components, a quick and secure connection can be achieved between the connecting sleeve 8 and the water-draining cylinder 5. Furthermore, the four ring-shaped sets of locking hooks 10 and locking buckles 12 improve the connection strength between the connecting sleeve 8 and the water-draining cylinder 5, effectively preventing leakage at the connection point during pressure testing.

[0033] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0034] Specifically, a sealing ring 11 is embedded in the outer surface of the end of the drainage tube 5 closest to the connecting sleeve 8 and furthest from the locking hook 10. Four identical sets of sealing rings 11 are arranged at equal intervals at the bottom of the drainage tube 5. The advantage is that the four equally spaced sealing rings 11 further enhance the sealing between the drainage tube 5 and the connecting sleeve 8, effectively preventing the grout from leaking out from the connection under pressure, thus avoiding waste of experimental materials and pollution of the experimental environment.

[0035] Specifically, a positioning groove 15 is provided at the end of the fixing plate 14 away from the base plate 1, and the positioning groove 15 is adapted to the bottom of the loading pipe 19. The advantage is that by adapting the positioning groove 15 to the bottom of the loading pipe 19, the positioning and installation of the loading pipe 19 can be facilitated, ensuring that it is always in the same vertical line as the discharge valve 13 during the material receiving process, thus avoiding leakage of the grout.

[0036] Specifically, a rubber pad is bonded to the inner surface of the clamp 18, and the inner diameter of the clamp 18 is the same as the outer diameter of the loading tube 19. The advantages are that by bonding the rubber pad to the inner surface of the clamp 18, and ensuring that the inner diameter of the clamp 18 is the same as the outer diameter of the loading tube 19, the loading tube 19 can be tightly fixed to the connecting block 17. Furthermore, the rubber pad increases the friction between the clamp 18 and the loading tube 19, further preventing the loading tube 19 from loosening. Simultaneously, the rubber pad has a certain degree of elasticity, which can buffer vibrations that may occur during the experiment, preventing damage to the loading tube 19 due to vibration. The design of the clamp 18 also facilitates the quick assembly and disassembly of the loading tube 19.

[0037] Working Principle: In use, first, by setting the inner diameter of the mounting hole 4 to be the same as the outer diameter of the drainage cylinder 5, and the outer diameter of the drainage cover 6 to be larger than the outer diameter of the drainage cylinder 5, the drainage cylinder 5 is stably secured onto the top plate 2, achieving initial positioning and installation. Then, the operator rotates the handwheel 901, and through the threaded connection between the screw 902 and the top plate 2, the height of the pressure plate 903 can be adjusted until the pressure plate 903 is in tight contact with the drainage cover 6, ensuring the stability of the drainage cylinder 5 during testing. Subsequently, using the locking hooks 10 and latches 12 as cooperating components, the connecting sleeve 8 and the drainage cylinder 5 can be quickly and securely connected. The four sets of annularly distributed locking hooks 10 and latches 12 improve the connection strength between the connecting sleeve 8 and the drainage cylinder 5, effectively preventing leakage at the connection point during pressure testing. Furthermore, the four sets of equally spaced sealing rings 11 further enhance the sealing between the drainage cylinder 5 and the connecting sleeve 8, effectively preventing the grout from seeping out from the connection point under pressure, avoiding waste of experimental materials. To prevent contamination of the experimental environment, the loading tube 19 is finally inserted into the positioning groove 15 through the clamp 18, and then the clamp 18 is tightened to quickly fix the loading tube 19. The positioning groove 15 fits the bottom of the loading tube 19, facilitating its positioning and installation. This ensures that the loading tube 19 remains vertically aligned with the discharge valve 13 during material receiving, preventing leakage of the slurry. A rubber pad is adhered to the inner surface of the clamp 18, and the inner diameter of the clamp 18 is the same as the outer diameter of the loading tube 19. The clamp 18 securely fixes the loading tube 19 to the connecting block 17, and the rubber pad increases the friction between the clamp 18 and the loading tube 19, further preventing the loading tube 19 from loosening. The rubber pad also has elasticity, which can buffer vibrations that may occur during the experiment, preventing damage to the loading tube 19 due to vibration. The design of the clamp 18 also facilitates quick assembly and disassembly of the loading tube 19. During the experiment, the pressure gauge 7 monitors the pressure inside the drainage cylinder 5 in real time, and maintains a stable pressure once the set experimental pressure is reached. Under pressure, water in the grout will pass through the drainage cylinder 5, and be discharged from the discharge valve 13 via the connecting sleeve 8. After the experiment, the amount of water discharged is collected and measured, and combined with the total amount of injected grout, the pressure drainage rate is calculated.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for testing the pressure bleeding rate of grout in bridge ducts, comprising a base plate (1) and a top plate (2) located above the base plate (1), characterized in that: A support column (3) is fixedly installed between the bottom plate (1) and the top plate (2). A through-hole (4) is opened at the end of the top plate (2) away from the bottom plate (1). A water-draining cylinder (5) is embedded in the inner surface of the top plate (2). A water-draining cover (6) is connected to the flange at the end of the water-draining cylinder (5) near the top plate (2). A pressure gauge (7) is installed on the top of the water-draining cover (6). A connecting sleeve (8) is provided on the side of the water-draining cylinder (5) away from the water-draining cover (6). A clamping device (9) is provided on the side of the top plate (2) near the water-draining cover (6). A locking hook (1) is fixedly installed on the outer surface of the end of the water-draining cylinder (5) near the connecting sleeve (8). 0), a buckle (12) is fixedly installed on the outer surface of the connecting sleeve (8) near the end of the water-draining cylinder (5), and a discharge valve (13) is provided at the end of the connecting sleeve (8) away from the water-draining cylinder (5). A fixing plate (14) is fixedly installed at the center of the end of the bottom plate (1) near the top plate (2). A support rod (16) is fixedly installed on the top of the fixing plate (14). A connecting block (17) is fixedly installed at the end of the support rod (16) away from the fixing plate (14). A clamp (18) is rotatably installed on the inner surface of the end of the connecting block (17) away from the support rod (16). A loading pipe (19) is provided on the inner surface of the clamp (18).

2. The testing device for the pressure bleeding rate test of grouting material in bridge ducts according to claim 1, characterized in that: The inner diameter of the mounting hole (4) is the same as the outer diameter of the water-draining tube (5), and the outer diameter of the water-draining cover (6) is larger than the outer diameter of the water-draining tube (5).

3. The testing device for the pressure bleeding rate test of grouting material in bridge ducts according to claim 1, characterized in that: The clamping device (9) includes a handwheel (901), and a screw (902) threadedly connected to the top plate (2) is fixedly installed at one end of the handwheel (901) near the top plate (2), and a pressure plate (903) is rotatably installed at the other end of the screw (902) away from the handwheel (901).

4. The testing device for the pressure bleeding rate test of grouting material in bridge ducts according to claim 1, characterized in that: The locking hook (10) and the locking buckle (12) are mating components. The locking hook (10) and the locking buckle (12) are provided with four identical sets. The locking hook (10) and the locking buckle (12) are arranged in a ring around the center line of the water-draining cylinder (5).

5. The testing device for the pressure bleeding rate test of grouting material in bridge ducts according to claim 1, characterized in that: A sealing ring (11) is embedded in the outer surface of the end of the water-draining tube (5) that is close to the connecting sleeve (8) and far from the locking hook (10). The sealing ring (11) has four identical sets and is located at the bottom of the water-draining tube (5) and is distributed at equal intervals.

6. The testing device for the pressure bleeding rate test of grouting material in bridge ducts according to claim 1, characterized in that: The fixing plate (14) has a positioning groove (15) at one end away from the bottom plate (1), and the positioning groove (15) is adapted to the bottom of the loading tube (19).

7. The testing device for the pressure bleeding rate test of grouting material in bridge ducts according to claim 1, characterized in that: A rubber pad is bonded to the inner surface of the clamp (18), and the inner diameter of the clamp (18) is the same as the outer diameter of the loading pipe (19).

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