Sample forming device for shear strength test of waterproof layer of bridge floor

Abstract

The utility model discloses a sample forming device for a shear strength test of a waterproof layer of a bridge floor, and relates to the technical field of bridge floor detection. The bridge deck waterproof layer shear strength test sample forming device comprises a mold and a square tube, a round tube is inserted into the top of the square tube, and a magnetic attraction switch is fixedly installed on the surface of the round tube. A first magnetic attraction block and a second magnetic attraction block are magnetically attracted, then a telescopic rod is controlled to work, the telescopic rod drives the second magnetic attraction block on the first magnetic attraction block to move so as to drive an impact block to move upwards, and then a magnetic attraction switch is controlled to work, so that the first magnetic attraction block is separated from the second magnetic attraction block; and in the using process, repeated manual lifting of the impact block is avoided, manpower expenditure is saved, and meanwhile the using convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge deck detection, in particular to a bridge deck waterproof layer shear strength test specimen forming device. Background Art

[0002] Bridge deck: The part of the bridge used by vehicles or the ground or platform bridge on the bridge that can be walked or passed through. The existing patent, patent announcement number CN208313665U, discloses a sample forming device to alleviate the technical problems existing in the prior art that the test mold is not tightly sealed and easy to penetrate from the gap. It includes a support plate, a forming plate and a splitting device; the upper surface of the support plate forms a support surface; the forming plate is superimposed on the upper part of the support plate, detachably connected to the support plate and provided with multiple test mold grooves; when the support plate and the forming plate need to be split, the splitting device is inserted between the support plate and the forming plate, and a force is applied to the support plate and the forming plate on both sides to separate the support plate and the forming plate. The utility model effectively avoids the problem of penetration and is tightly sealed.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: in the actual application process, since the test block material needs to be stamped, if manpower is used to lift the impact block back and forth and then impact it during stamping, a large amount of manpower will be consumed in the subsequent use process, which reduces the convenience of using the device and is inconvenient for subsequent staff to operate. Therefore, we propose a bridge deck waterproof layer shear strength test specimen forming device to solve the above-mentioned problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a test specimen forming device for a bridge deck waterproof layer shear strength test, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a bridge deck waterproof layer shear strength test specimen forming device, including a mold and a square tube, a round tube is inserted at the top of the square tube, a magnetic switch is fixedly installed on the surface of the round tube, a first magnetic block is fixedly installed at one end of the round tube located inside the square tube, a second magnetic block is magnetically adsorbed on one side of the first magnetic block, an impact block is fixedly installed on one side of the second magnetic block, a telescopic rod is fixedly installed on the top of the first magnetic block, and one end of the telescopic rod is fixedly connected to the inner top wall of the square tube.

[0006] A plug plate is fixedly installed on both sides of the square tube, a plug rod is plugged into one side of the plug plate, a stop block is fixedly installed on one end of the plug rod, a return spring is arranged around the surface of the plug rod, one end of the return spring is fixedly connected to one side of the plug plate, and the other end of the return spring is fixedly connected to one side of the stop block, plate grooves are opened on both sides of the mold, and round holes are opened on the inner wall of the plate grooves.

[0007] Preferably, a circular hole for the circular tube to pass through is opened on one side of the square tube, and the inner walls of the circular holes are slidably connected to the inner walls of the circular holes.

[0008] Preferably, a limiting rod is fixedly installed on the top of the impact block, one end of which passes through one side of the square tube and extends to the outside of the square tube. A limiting hole for the limiting rod to pass through is opened on one side of the square tube, and the inner wall of the limiting hole is slidably connected to the surface of the limiting rod.

[0009] Preferably, the plug plate is provided with a plug hole for the plug rod to pass through, a handle is fixedly mounted on one side of the stopper, and an anti-slip pattern is provided on the surface of the handle.

[0010] Preferably, one side of the plate groove on the mold is set to be rounded, the surface of one end of the plug-in rod is set to be rounded, and one end of the plug-in rod is plugged into the round hole, and the plate groove is adapted to the plug-in plate.

[0011] Preferably, a battery cavity is opened inside the circular tube, a threaded tube is fixedly installed at one end of the circular tube, an internal threaded tube is threadedly connected to the surface of the threaded tube, and the internal threaded tube is threadedly connected to the threaded tube.

[0012] Preferably, a rubber block is fixedly mounted on one side of the inner wall of the internally threaded tube, and an anti-slip pattern is formed on one side of the rubber block.

[0013] The utility model provides a test specimen molding device for shear strength test of bridge deck waterproof layer. Compared with the prior art, the device has the following beneficial effects: the test specimen molding device for shear strength test of bridge deck waterproof layer, by placing the mold on the ground where operation is required, then injecting material into the mold, clamping the square tube on the top of the mold, inserting the plug plate into the inside of the plate slot, inserting the plug rod into the inside of the round hole, the first magnetic block and the second magnetic block are magnetically adsorbed, then the telescopic rod is controlled to work, the telescopic rod drives the second magnetic block on the first magnetic block to move, thereby driving the impact block to move upward, then the magnetic switch is controlled to work, so that the first magnetic block is separated from the second magnetic block, and the impact block falls to stamp the material in the mold. During use, it avoids repeated lifting of the impact block by manpower, saves manpower expenditure, and also improves the convenience of using the device.

[0014] At the same time, when the plug plate on the square tube is inserted into the plate groove, one end of the plug rod is set to a rounded corner. During the insertion process, one end of the plug rod is slidably connected with the rounded corner on one side of the inner wall of the plate groove, so that the plug rod enters the interior of the plate groove, and then the plug rod is located on the inner side of the round hole. The reset spring resets the plug rod on the block so that one end of the plug rod is plugged into the round hole. When it is necessary to separate the square tube from the mold, pull the block on the handle to separate the plug rod from the round hole. This makes it convenient to avoid the separation of the square tube from the mold during use, and also facilitates the operation of subsequent staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model.

[0017] Figure 3 It is a schematic diagram of the three-dimensional connection structure of the round tube and the internally threaded tube of the utility model.

[0018] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1. mold; 2. square tube; 3. round tube; 4. magnetic switch; 5. first magnetic block; 6. second magnetic block; 7. impact block; 8. telescopic rod; 9. plug-in plate; 10. plug-in rod; 11. block; 12. reset spring; 13. limit rod; 14. handle; 15. threaded tube; 16. internal threaded tube; 17. rubber block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a bridge deck waterproof layer shear strength test specimen molding device, comprising a mold 1 and a square tube 2, a round tube 3 is inserted on the top of the square tube 2, a magnetic switch 4 is fixedly installed on the surface of the round tube 3, a first magnetic block 5 is fixedly installed on one end of the round tube 3 located inside the square tube 2, a second magnetic block 6 is magnetically adsorbed on one side of the first magnetic block 5, an impact block 7 is fixedly installed on one side of the second magnetic block 6, a telescopic rod 8 is fixedly installed on the top of the first magnetic block 5, and one end of the telescopic rod 8 is fixedly connected to the inner top wall of the square tube 2.

[0022] A plug plate 9 is fixedly installed on both sides of the square tube 2, a plug rod 10 is plugged into one side of the plug plate 9, a stopper 11 is fixedly installed at one end of the plug rod 10, a return spring 12 is arranged around the surface of the plug rod 10, one end of the return spring 12 is fixedly connected to one side of the plug plate 9, and the other end of the return spring 12 is fixedly connected to one side of the stopper 11, plate grooves are opened on both sides of the mold 1, and round holes are opened on the inner wall of the plate grooves.

[0023] Preferably, a circular hole for the circular tube 3 to pass through is opened on one side of the square tube 2, and the inner walls of the circular holes are slidably connected to the inner walls of the circular holes.

[0024] Preferably, a limiting rod 13 is fixedly installed on the top of the impact block 7, one end of the limiting rod 13 passes through one side of the square tube 2 and extends to the outside of the square tube 2, and a limiting hole for the limiting rod 13 to pass through is opened on one side of the square tube 2, and the inner wall of the limiting hole is slidably connected to the surface of the limiting rod 13.

[0025] Preferably, a plugging hole for the plugging rod 10 to pass through is provided on the plugging plate 9, and a handle 14 is fixedly mounted on one side of the stopper 11, and a surface of the handle 14 is provided with anti-slip grooves.

[0026] Place the mold 1 on the ground where operation is required, then inject material into the mold 1, insert the square tube 2 into the top of the mold 1, insert the plug plate 9 into the inside of the plate groove, insert the plug rod 10 into the inside of the round hole, and the first magnetic block 5 and the second magnetic block 6 are magnetically attracted. Then control the telescopic rod 8 to work, and the telescopic rod 8 drives the second magnetic block 6 on the first magnetic block 5 to move, thereby driving the impact block 7 to move upward, and then control the magnetic switch 4 to work, so that the first magnetic block 5 is separated from the second magnetic block 6, and the impact block 7 falls to stamp the material in the mold 1. During use, it avoids repeated lifting of the impact block 7 by manpower, saves manpower expenditure, and also improves the convenience of using the device.

[0027] Preferably, one side of the plate groove on the mold 1 is set to be rounded, the surface of one end of the plug-in rod 10 is set to be rounded, and one end of the plug-in rod 10 is plugged into the round hole, and the plate groove is adapted to the plug-in plate 9.

[0028] At the same time, when the plug plate 9 on the square tube 2 is inserted into the plate groove, one end of the plug rod 10 is set to a rounded corner. During the insertion process, one end of the plug rod 10 is slidably connected to the rounded corner on one side of the inner wall of the plate groove, so that the plug rod 10 enters the interior of the plate groove, and then the plug rod 10 is located on the inner side of the circular hole. The reset spring 12 resets the plug rod 10 on the stopper 11, so that one end of the plug rod 10 is plugged into the circular hole. When it is necessary to separate the square tube 2 from the mold 1, pull the stopper 11 on the handle 14 to separate the plug rod 10 from the circular hole. This makes it convenient to avoid the separation of the square tube 2 and the mold 1 during use, and also facilitates the operation of subsequent staff.

[0029] Preferably, a battery cavity is opened inside the circular tube 3 , a threaded tube 15 is fixedly mounted at one end of the circular tube 3 , an internal threaded tube 16 is threadedly connected to the surface of the threaded tube 15 , and the internal threaded tube 16 is threadedly connected to the threaded tube 15 .

[0030] The battery cavity is provided to facilitate the subsequent storage operation of the battery. At the same time, the threaded tube 15 is threadedly connected with the internal threaded tube 16 to facilitate the opening and closing of the round tube 3 and the internal threaded tube 16.

[0031] Preferably, a rubber block 17 is fixedly mounted on one side of the inner wall of the internal threaded tube 16 , and an anti-slip pattern is formed on one side of the rubber block 17 .

[0032] The rubber block 17 is provided to facilitate the subsequent squeezing and positioning of the battery during use, thereby preventing the battery from being damaged during use.

[0033] Preliminary preparation for the shear strength test of the bridge deck waterproof layer: Place the lower sample steel mold on the surface of the bridge deck waterproof layer steadily, pour 1kg of engineering asphalt mixture with a temperature of 160℃ into the steel mold, and then insert the upper sample compaction device into the lower compaction device. The tester manually lifts a 5kg compaction steel hammer (impact block 7) with the same length and width as the lower sample steel mold. The magnetic switch 4 can control the bonding of the compaction handle and the steel hammer. The upper sample compaction device with a height of 500mm impacts the asphalt mixture 75 times. During the compaction process, the sample height is measured in real time and controlled at 40mm. After compaction, the upper compaction device is pulled out from the lower sample mold and the lower sample mold is removed after 4h.

[0034] During operation, the mold 1 is placed on the ground where the operation is required, and then the material is injected into the mold 1, the square tube 2 is inserted into the top of the mold 1, the plug plate 9 is inserted into the inside of the plate slot, the plug rod 10 is inserted into the inside of the round hole, the first magnetic block 5 and the second magnetic block 6 are magnetically attracted, and then the telescopic rod 8 is controlled to work, and the telescopic rod 8 drives the second magnetic block 6 on the first magnetic block 5 to move, thereby driving the impact block 7 to move upward, and then the magnetic switch 4 is controlled to work, so that the first magnetic block 5 is separated from the second magnetic block 6, and the impact block 7 falls to stamp the material in the mold 1. During use, it is avoided that manpower repeatedly lifts the impact block 7, which saves manpower expenditure and also improves the efficiency of the device. Convenience of use: when the plug plate 9 on the square tube 2 is inserted into the plate groove, one end of the plug rod 10 is set to a rounded corner. During the insertion process, one end of the plug rod 10 is slidably connected with the rounded corner on one side of the inner wall of the plate groove, so that the plug rod 10 enters the plate groove. Then the plug rod 10 is located on the inner side of the circular hole, and the reset spring 12 resets the plug rod 10 on the stopper 11 so that one end of the plug rod 10 is plugged into the circular hole. When it is necessary to separate the square tube 2 from the mold 1, pull the stopper 11 on the handle 14 to separate the plug rod 10 from the circular hole. This facilitates the use and prevents the square tube 2 from being separated from the mold 1. It is also convenient for subsequent operations of staff.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A device for forming a specimen for a bridge deck waterproof layer shear strength test, comprising a mold (1) and a square tube (2), characterized in that: A round tube (3) is inserted into the top of the square tube (2), a magnetic switch (4) is fixedly mounted on the surface of the round tube (3), a first magnetic block (5) is fixedly mounted on one end of the round tube (3) located inside the square tube (2), a second magnetic block (6) is magnetically attracted to one side of the first magnetic block (5), an impact block (7) is fixedly mounted on one side of the second magnetic block (6), a telescopic rod (8) is fixedly mounted on the top of the first magnetic block (5), and one end of the telescopic rod (8) is fixedly connected to the inner top wall of the square tube (2); Both sides of the square tube (2) are fixedly mounted with plug plates (9), one side of the plug plate (9) is plugged with a plug rod (10), one end of the plug rod (10) is fixedly mounted with a stopper (11), a return spring (12) is arranged around the surface of the plug rod (10), one end of the return spring (12) is fixedly connected to one side of the plug plate (9), and the other end of the return spring (12) is fixedly connected to one side of the stopper (11), and both sides of the mold (1) are provided with plate grooves, and the inner wall of the plate grooves is provided with round holes.

2. A bridge deck waterproof layer shear strength test specimen forming device according to claim 1, characterized in that: A circular hole for the circular tube (3) to pass through is provided on one side of the square tube (2), and the inner walls of the circular holes are slidably connected to the inner walls of the circular holes.

3. The bridge deck waterproof layer shear strength test specimen forming device according to claim 1, characterized in that: A limiting rod (13) is fixedly mounted on the top of the impact block (7), one end of the limiting rod (13) passes through one side of the square tube (2) and extends to the outside of the square tube (2), one side of the square tube (2) is provided with a limiting hole for the limiting rod (13) to pass through, and the inner wall of the limiting hole is slidably connected to the surface of the limiting rod (13).

4. The bridge deck waterproof layer shear strength test specimen forming device according to claim 1, characterized in that: The plug plate (9) is provided with a plug hole for the plug rod (10) to pass through, and a handle (14) is fixedly mounted on one side of the stopper (11), and the surface of the handle (14) is provided with anti-slip grooves.

5. The bridge deck waterproof layer shear strength test specimen forming device according to claim 1, characterized in that: One side of the plate groove on the mold (1) is configured as a rounded corner, the surface of one end of the plug-in rod (10) is configured as a rounded corner, and one end of the plug-in rod (10) is plugged into the circular hole, and the plate groove is adapted to the plug-in plate (9).

6. The bridge deck waterproof layer shear strength test specimen forming device according to claim 1, characterized in that: A battery cavity is provided inside the circular tube (3); a threaded tube (15) is fixedly mounted on one end of the circular tube (3); an internal threaded tube (16) is threadedly connected to the surface of the threaded tube (15); and the internal threaded tube (16) is threadedly connected to the threaded tube (15).

7. A bridge deck waterproof layer shear strength test specimen forming device according to claim 6, characterized in that: A rubber block (17) is fixedly mounted on one side of the inner wall of the internally threaded tube (16), and an anti-slip pattern is provided on one side of the rubber block (17).

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