An assembled concrete viscosity detection device

Abstract

The present application relates to a kind of viscidity detection device, especially, a kind of prefabricated concrete viscidity detection device.The present application provides a kind of prefabricated concrete viscidity detection device that is convenient to assemble.The present application provides such a prefabricated concrete viscidity detection device, including support, fixed frame, first sliding rod, fixed plate, sliding frame and storage frame etc.;Support upper portion is slidably connected with fixed frame, and fixed frame is slidably connected with first sliding rod on the top, and the bottom of first sliding rod is connected with fixed plate, and fixed plate is slidably connected with sliding frame for detecting the viscidity of concrete, and storage frame is placed on the top of support.The storage frame and fixed frame can be clamped by moving fixed rod and limiting frame, and then the storage frame and fixed frame are conveniently assembled, and the viscidity of concrete is detected by tension detector, to improve the detection efficiency of the viscidity of concrete.

Description

Technical Field

[0001] This invention relates to a viscosity testing device, and more particularly to a prefabricated concrete viscosity testing device. Background Technology

[0002] Concrete is an essential building material, mainly used for roofing and flooring. After the concrete is mixed, its viscosity needs to be tested to ensure it reaches the required level. To facilitate the installation and disassembly of the viscosity testing device, an easy-to-assemble concrete viscosity testing device is required.

[0003] Patent CN209069944U discloses a concrete viscosity testing device, comprising a sliding rod, a push plate, a push rod, a turntable, a motor, an installation rod, a first positioning plate, a connecting rod, a positioning rod, a sleeve, a fixing rod, a first helical spring, a nut, a support rod, a roller device, a pull plate, an adsorption layer, a pull rod, a second helical spring, a tension gauge, a second positioning plate, a guide tube, a screw, a handle, a sleeve, and a third helical spring. While this patent can detect the viscosity of concrete using a tension gauge, its assembly is inconvenient, and disassembly requires disassembling the patent's parts step by step, making the process complex, time-consuming, and labor-intensive, and inconvenient for workers to assemble.

[0004] Therefore, it is necessary to design a prefabricated concrete viscosity testing device that is easy to assemble. Summary of the Invention

[0005] In order to overcome the shortcomings of existing technologies that are not easy to disassemble and install, the purpose of this invention is to provide a prefabricated concrete viscosity testing device that is easy to assemble.

[0006] The technical solution is as follows: A prefabricated concrete viscosity testing device includes a support, a fixed frame, a first sliding rod, a fixed plate, a sliding frame, a storage frame, a fixed rod, a fixed block, a screw rod, a limiting frame, a top plate, and a testing mechanism. The fixed frame is slidably connected to the upper part of the support, and the first sliding rod is slidably connected to the fixed frame. The bottom of the first sliding rod is connected to the fixed plate, and the sliding frame for testing concrete viscosity is slidably connected to the fixed plate. A storage frame is placed on the top of the support. Fixed rods are slidably connected to both the front and rear sides of the upper part of the support. The fixed rods can move and engage with the storage frame. A fixed block is connected to the top of the support, located on the right side of the storage frame. A screw rod is rotatably connected to the fixed block, and a limiting frame is threaded onto the screw rod. The limiting frame slides in contact with the support, and moving the limiting frame to the left engages with the fixed frame. A top plate for ejecting concrete is slidably connected inside the storage frame. A testing mechanism for testing concrete viscosity is provided at the bottom of the fixed plate. The device also includes a mixing mechanism, and a mixing mechanism for moving the fixed rod is provided at the top inside the support.

[0007] As an improvement to the above solution, the testing mechanism includes a tensile detector, a tensile sensor, and a display screen. The tensile detector is installed at the bottom of the fixed plate, and the tensile sensor is slidably connected to the lower part of the tensile detector. A display screen for displaying the measured tensile force value is installed on the left side of the tensile detector.

[0008] As an improvement to the above solution, the dispensing mechanism includes a slide rail, a first connecting rod, and a connecting plate. The slide rail is connected inside the bracket, and the first connecting rod is connected to the left side of the limiting frame. The first connecting rod is slidably connected to the slide rail. A connecting plate is rotatably connected between the front side of the first connecting rod and the front fixed rod, and a connecting plate is also rotatably connected between the rear side of the first connecting rod and the rear fixed rod.

[0009] As an improvement to the above solution, a vibration mechanism for vibrating the fixed plate and the sliding frame is also included. The vibration mechanism includes a first support frame, a vibrator and a connecting pipe. The first support frame is connected to the top of the fixed plate, and the vibrator is installed on the first support frame. The vibrator can drive the fixed plate and the sliding frame to vibrate. Two connecting pipes for connecting wires are connected to the upper part of the first support frame.

[0010] As an improvement to the above solution, a pulling mechanism for pulling the first sliding rod is also included. The pulling mechanism includes a connecting frame, a dual-axis motor, a second connecting rod, a pulley assembly, a winding wheel, a second support frame, rollers, a connecting rope, a contact frame, the second sliding rod, and an elastic element. The connecting frame is connected to the fixed frame, and the dual-axis motor is mounted in the middle of the connecting frame. The second connecting rod is rotatably connected to the upper part of the connecting frame. Each of the two output shafts of the dual-axis motor has a pulley assembly connected to the end of the second connecting rod closest to it. Each pulley assembly consists of two pulleys and a flat belt. The front end of the second connecting rod is connected to a pulley on the front output shaft of the dual-axis motor, and the rear end of the second connecting rod is connected to the output shaft on the rear side of the dual-axis motor. Each shaft is connected to a pulley. The two front pulleys are wound with flat belts, and the two rear pulleys are also wound with pulleys. A winding wheel is connected to the middle of the second connecting rod. A second support frame is connected to the top of the fixed frame. A roller is rotatably connected to the second support frame. A connecting rope is wound on the winding wheel and wound around the roller. The front of the connecting rope is connected to the first sliding rod. A contact frame is connected between the right sides of the two pulley sets. A second sliding rod is slidably connected to the lower part of the connecting frame. The middle part of the second sliding rod is inclined. The second sliding rod contacts the contact frame. The movement of the second sliding rod can rotate the lead screw. An elastic element is sleeved on the second sliding rod. The two ends of the elastic element are connected to the second sliding rod and the connecting frame, respectively.

[0011] As an improvement to the above solution, it also includes an extrusion mechanism for extruding concrete. The extrusion mechanism includes a fixed frame and a sliding plate. The fixed frame is connected to the bottom of the top plate. The upper part of the fixed frame has a limiting groove for locking the wooden rod. The lower part of the fixed frame is slidably connected to the sliding plate.

[0012] As an improvement to the above solution, a scraping mechanism for removing excess concrete is also included. The scraping mechanism includes a support plate, a scraper, and a handle. The support plate is connected to the middle of the fixed frame, and the scraper for scraping concrete is slidably connected to the support plate. The scraper can move to contact the sliding frame, and a handle is connected to the upper part of the scraper.

[0013] As an improvement to the above solution, the end of the lead screw is bent.

[0014] 1. By moving the fixed rod and the limiting frame, the storage box and the fixed frame can be snapped together, which facilitates the assembly of the storage box and the fixed frame. The viscosity of the concrete can be detected by the tensile tester, which can improve the detection efficiency of the concrete viscosity.

[0015] 2. By starting the vibrator, the sliding frame can be vibrated to better compact the concrete, thereby improving the tensile tester's results on the concrete viscosity.

[0016] 3. By starting the dual-axis motor, the first sliding rod can be moved up and down, thus facilitating the contact between the sliding frame and the concrete. Through the contact frame and the second sliding rod, the lead screw can be rotated automatically, thus facilitating the left and right movement of the limit frame, thereby reducing the labor intensity of the workers.

[0017] 4. By moving the scraper, the concrete adsorbed on the sliding frame can be scraped off, which facilitates the subsequent viscosity testing of the concrete by the sliding frame. Attached Figure Description

[0018] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the first perspective portion of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the second perspective portion of the present invention.

[0021] Figure 4 This is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0023] Figure 6 This is a second-view three-dimensional structural diagram of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the detection mechanism of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the dispensing mechanism of the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the vibration mechanism of the present invention.

[0027] Figure 10 This is a schematic diagram of the first partial three-dimensional structure of the pulling mechanism of the present invention.

[0028] Figure 11 This is a schematic diagram of the second part of the pulling mechanism of the present invention.

[0029] Figure 12 This is a three-dimensional structural diagram of the third part of the pulling mechanism of the present invention.

[0030] Figure 13 This is a three-dimensional structural diagram of the extrusion mechanism of the present invention.

[0031] Figure 14 This is a three-dimensional structural diagram of the scraping mechanism of the present invention.

[0032] Labels in the diagram: 1. Bracket, 2. Fixed frame, 3. First sliding rod, 4. Fixed plate, 5. Sliding frame, 6. Storage box, 7. Fixed rod, 8. Fixed block, 9. Lead screw, 10. Limiting frame, 11. Top plate, 12. Detection mechanism, 121. Tension detector, 122. Tension sensor, 123. Display screen, 13. Adjustment mechanism, 131. Slide rail, 132. First connecting rod, 133. Connecting plate, 14. Vibration mechanism, 141. First support frame, 142. Vibrator, 143. 15. Connecting pipe; 15. Pulling mechanism; 151. Connecting frame; 152. Dual-axis motor; 153. Second connecting rod; 154. Pulley assembly; 155. Winding wheel; 156. Second support frame; 157. Roller; 158. Connecting rope; 159. Contact frame; 1510. Second sliding rod; 1511. Elastic element; 16. Extrusion mechanism; 161. Fixed frame; 162. Limiting groove; 163. Sliding plate; 17. Scraping mechanism; 171. Support plate; 172. Scraper; 173. Handle. Detailed Implementation

[0033] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0034] Example 1

[0035] like Figure 1-8 As shown, a prefabricated concrete viscosity testing device includes a support 1, a fixed frame 2, a first sliding rod 3, a fixed plate 4, a sliding frame 5, a storage frame 6, a fixed rod 7, a fixed block 8, a screw 9, a limiting frame 10, a top plate 11, a testing mechanism 12, and a mixing mechanism 13. The fixed frame 2 is slidably connected between the front and rear sides of the upper right side of the support 1. The first sliding rod 3 is slidably connected to the upper part of the fixed frame 2. The bottom of the first sliding rod 3 is fixed to the fixed plate 4 by bolts. The sliding frame 5 for testing concrete viscosity is slidably connected to the fixed plate 4. A storage box 6 is placed on the top of the frame 1. Fixed rods 7 are slidably connected to the front and rear sides of the upper part of the frame 1. The fixed rods 7 can be moved to engage with the storage box 6. A fixed block 8 is connected to the top right side of the frame 1. A screw rod 9 is rotatably connected to the fixed block 8. A limit frame 10 is threadedly connected to the screw rod 9. The limit frame 10 is in slidable contact with the frame 1. The limit frame 10 can be engaged with the fixed frame 2 when it moves to the left. A top plate 11 for pushing out concrete is slidably connected inside the storage box 6. A detection mechanism 12 is provided at the bottom of the fixed plate 4. An adjustment mechanism 13 is provided at the top inside the frame 1.

[0036] like Figure 1 and Figure 7As shown, the detection mechanism 12 includes a tensile detector 121, a tensile sensor 122, and a display screen 123. The tensile detector 121 is mounted on the bottom of the fixing plate 4 by bolts. The tensile sensor 122 is slidably connected to the lower part of the tensile detector 121. The display screen 123 for displaying the detected tensile force value is mounted on the left side of the tensile detector 121 by bolts.

[0037] like Figure 6 and Figure 8 As shown, the dispensing mechanism 13 includes a slide rail 131, a first connecting rod 132, and a connecting plate 133. The slide rail 131 is fixed to the top of the bracket 1 by bolts. The first connecting rod 132 is welded to the left side of the limiting frame 10. The first connecting rod 132 is slidably connected to the slide rail 131. The connecting plate 133 is rotatably connected between the front side of the first connecting rod 132 and the front fixed rod 7. The connecting plate 133 is also rotatably connected between the rear side of the first connecting rod 132 and the rear fixed rod 7.

[0038] When workers need to test the consistency of concrete, the storage box 6 can be placed on top of the support 1, and then an appropriate amount of concrete can be poured into the storage box 6. After the concrete is poured in, the fixing frame 2 can be inserted into the support 1. After the fixing frame 2 is inserted, the screw 9 can be rotated to move the limiting frame 10 to the left and contact the fixing frame 2, thereby locking the fixing frame 2 and the limiting frame 10. At the same time as the limiting frame 10 moves to the left, it drives the first connecting rod 132 to move, causing the first connecting rod 132 to pull the connecting plate 133 to the left. At the same time as the connecting plate 133 is pulled to the left, it drives the fixing rod 7 to move inward and lock into the storage box 6. Then the fixing rod can be removed. The tool is used to prevent the fixing tool from fixing the first sliding rod 3. Then the first sliding rod 3 is moved downward, so that the sliding frame 5 contacts the concrete and compacts it. After the sliding frame 5 has compacted the concrete, the first sliding rod 3 is moved upward. Since the sliding frame 5 has already compacted the concrete, when the first sliding rod 3 moves upward, the sliding frame 5 and the tension sensor 122 will not be able to move upward due to the viscosity of the concrete. This allows the tension detector 121 to detect the viscosity of the concrete through the tension sensor 122. The value detected by the tension detector 121 will be displayed on the display screen 123. The value is used to determine the concrete viscosity. When the upward force of the first sliding rod 3 is greater than the force required to determine the concrete viscosity, the tension sensor 122 will drive the sliding frame 5 to move upward and reset. After the first sliding rod 3 moves upward and resets, a fixing tool can be used to fix the first sliding rod 3. Then, the screw 9 is rotated in the opposite direction, causing the limiting frame 10 to move to the right and disengage from the fixing frame 2. Then, the worker can disassemble the fixing frame 2. While the limiting frame 10 moves to the right, it drives the first connecting rod 132 to move, causing the first connecting rod 132 to pull the connecting plate 133 to the right. While the connecting plate 133 is pulled to the right, it can drive the fixing rod 7 to move outward and... The storage box 6 is detached and then removed. When it is necessary to remove the concrete from the storage box 6, a wooden rod can be used to push the top plate 11 upwards, so that the top plate 11 pushes the concrete out. After the concrete is pushed out, the top plate 11 can be released, so that the top plate 11 falls downwards and resets under the influence of gravity. In this way, by moving the fixing rod 7 and the limiting frame 10, the storage box 6 and the fixing frame 2 can be locked together, which facilitates the assembly of the storage box 6 and the fixing frame 2. The viscosity of the concrete is detected by the tensile tester 121, which facilitates the detection efficiency of the concrete viscosity. Since the end of the screw 9 is bent, the bent screw 9 is convenient for the workers to rotate.

[0039] Example 2

[0040] like Figure 1 and Figure 9As shown, based on Embodiment 1, a vibration mechanism 14 is also included. The vibration mechanism 14 includes a first support frame 141, a vibrator 142, and a connecting pipe 143. The first support frame 141 is fixed to the top right side of the fixed plate 4 by bolts. The vibrator 142 is installed on the first support frame 141 by bolts. The vibrator 142 can drive the fixed plate 4 and the sliding frame 5 to vibrate. Connecting pipes 143 for connecting wires are welded to both the front and rear sides of the upper part of the first support frame 141.

[0041] Before the sliding frame 5 is compacted with the concrete, the wire can be connected to the vibrator 142 through the connecting pipe 143. Then, when it is necessary to compact the concrete, the vibrator 142 can be started, so that the vibrator 142 drives the fixed plate 4 and the sliding frame 5 to vibrate. While the sliding frame 5 is vibrating, it can be fully compacted with the concrete. While the sliding frame 5 moves upward, the vibrator 142 can be turned off, so that the vibrator 142 stops driving the fixed plate 4 and the sliding frame 5 to vibrate. In this way, by starting the vibrator 142, the vibration of the sliding frame 5 can be better compacted with the concrete, thereby improving the detection results of the tensile detector 121 on the viscosity of the concrete.

[0042] like Figure 1 , Figure 10 , Figure 11 and Figure 12As shown, it also includes a pulling mechanism 15, which includes a connecting frame 151, a dual-axis motor 152, a second connecting rod 153, a pulley set 154, a winding wheel 155, a second support frame 156, a roller 157, a connecting rope 158, a contact frame 159, a second sliding rod 1510, and an elastic element 1511. The connecting frame 151 connects the front and rear sides of the upper and lower parts of the fixed frame 2. The dual-axis motor 152 is bolted to the middle of the connecting frame 151. A second connecting rod 153 is rotatably connected between the front and rear sides of the upper part of 151. Each of the two output shafts of the dual-axis motor 152 is connected to a pulley assembly 154 near the end of the second connecting rod 153. Each pulley assembly 154 consists of two pulleys and a flat belt. The front end of the second connecting rod 153 is connected to a pulley on the front output shaft of the dual-axis motor 152 via a key, and the rear end of the second connecting rod 153 is also connected to a pulley on the rear output shaft of the dual-axis motor 152 via a key. The pulleys consist of two front pulleys with flat belts wound around them and two rear pulleys with belts wound around them. A winding wheel 155 is bolted to the middle of the second connecting rod 153. A second support frame 156 connects the top of the fixed frame 2 between its front and rear sides. A roller 157 is rotatably connected to the upper part of the second support frame 156. A connecting rope 158 is wound around the winding wheel 155 and is wound around the roller 157. The front side of the connecting rope 158 is connected to the first sliding rod 3. The two pulley sets... A contact frame 159 is connected between the right and left sides of the connecting frame 151. A second sliding rod 1510 is slidably connected to the lower part of the connecting frame 151. The middle part of the second sliding rod 1510 is a slope. The second sliding rod 1510 contacts the contact frame 159. The movement of the second sliding rod 1510 can rotate the lead screw 9. An elastic element 1511 is sleeved on the second sliding rod 1510. The elastic element 1511 is a compression spring. The two ends of the elastic element 1511 are respectively connected to the second sliding rod 1510 and the connecting frame 151.

[0043] When workers need to test the viscosity of concrete, the dual-axis motor 152 can be started. The two output shafts of the dual-axis motor 152 then drive the second connecting rod 153 to rotate via the pulley assembly 154. Simultaneously, the rotation of the second connecting rod 153 drives the winding wheel 155 to rotate, causing the winding wheel 155 to unwind the connecting rope 158. Once the connecting rope 158 is unwinding, the first sliding rod 3, under the influence of gravity, pulls the connecting rope 158 downwards, causing it to slide on the roller 157. During the rotation of the pulley assembly 154, the contact frame 159 moves upwards, causing the second sliding rod 1510 to contact the contact frame 159 and move to the right, thus compressing the elastic element 1511. Simultaneously, the second sliding rod 1510 moves to the right and contacts the lead screw 9, causing the lead screw 9 to rotate, thus moving the limit frame 10 to the left. When it is necessary to move the first sliding rod 3 upwards, the output shaft of the dual-axis motor 152 can be controlled to rotate in the opposite direction, causing the dual-axis motor... The two output shafts of the machine 152 rotate the second connecting rod 153 and the winding wheel 155 in opposite directions via the pulley group 154. While the winding wheel 155 is rotating, it can wind the connecting rope 158, causing the connecting rope 158 to pull the first sliding rod 3 upward to reset. While the pulley group 154 ​​is rotating in the opposite direction, it drives the contact frame 159 to move downward, so that the inclined surface of the second sliding rod 1510 contacts the contact frame 159. This causes the elastic element 1511 to drive the second sliding rod 1510 to move to the left to reset. While the second sliding rod 1510 is moving to the left, it contacts the lead screw 9, causing the lead screw 9 to rotate in the opposite direction, thereby causing the limiting frame 10 to move to the right. In this way, by starting the dual-axis motor 152, the first sliding rod 3 can be moved up and down, thus facilitating the contact of the sliding frame 5 with the concrete. Through the contact of the contact frame 159 with the second sliding rod 1510, the lead screw 9 can rotate automatically, thus facilitating the left and right movement of the limiting frame 10, thereby reducing the labor intensity of the workers.

[0044] like Figure 5 and Figure 13 As shown, it also includes an extrusion mechanism 16, which includes a fixed frame 161 and a sliding plate 163. The fixed frame 161 is fixed to the middle position of the bottom of the top plate 11 by bolts. The upper part of the fixed frame 161 has a limit groove 162, and the lower part of the fixed frame 161 is slidably connected to the sliding plate 163.

[0045] When workers need to remove the concrete, they can use a wooden rod with a protrusion at the top to engage in the limiting groove 162, and then rotate the sliding plate 163 to seal the limiting groove 162, thereby preventing the wooden rod with the protrusion at the top from slipping out during the upward movement. After the concrete is ejected, the sliding plate 163 can be rotated in the opposite direction to remove the seal on the limiting groove 162, and then the wooden rod with the protrusion at the top can be removed. In this way, by sealing the limiting groove 162 with the sliding plate 163, the wooden rod can be prevented from shifting during the upward ejection of the top plate 11, thus allowing workers to eject the top plate 11 more easily.

[0046] like Figure 6 and Figure 14 As shown, it also includes a scraping mechanism 17, which includes a support plate 171, a scraper 172 and a handle 173. The support plate 171 is fixed between the front and rear sides of the middle of the fixed frame 2 by bolts. The scraper 172 for scraping concrete is slidably connected to the support plate 171. The scraper 172 can move to contact the sliding frame 5. The handle 173 is welded to the upper part of the scraper 172.

[0047] After the sliding frame 5 completes the concrete viscosity test, the scraper 172 can be moved backward using the handle 173 to make the scraper 172 contact the sliding frame 5, thereby scraping off the concrete adsorbed on the sliding frame 5. Then, the scraper 172 is moved forward to scrape off the concrete adsorbed on the sliding frame 5 again. Afterward, the concrete scraped off the scraper 172 can be cleaned. In this way, by moving the scraper 172, the concrete adsorbed on the sliding frame 5 can be scraped off, which facilitates the subsequent viscosity test of the concrete by the sliding frame 5.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A prefabricated concrete viscosity testing device, comprising a bracket (1), a fixed frame (2), a first sliding rod (3), a fixed plate (4), a sliding frame (5), a storage frame (6), a fixed rod (7), a fixed block (8), a screw rod (9), a limiting frame (10), a top plate (11), and a testing mechanism (12). The bracket (1) is slidably connected to the upper part of the fixed frame (2), the fixed frame (2) is slidably connected to the first sliding rod (3), the bottom of the first sliding rod (3) is connected to the fixed plate (4), the fixed plate (4) is slidably connected to the sliding frame (5) for testing concrete viscosity, the top of the bracket (1) is placed with a storage frame (6), and the bracket (12) is slidably connected to the fixed plate (4). 1) The upper front and rear sides are slidably connected with fixed rods (7), which can be moved to engage with the storage frame (6). The top of the bracket (1) is connected with a fixed block (8), which is located on the right side of the storage frame (6). A screw rod (9) is rotatably connected to the fixed block (8), and a limit frame (10) is threadedly connected to the screw rod (9). The limit frame (10) is slidably contacted with the bracket (1). The limit frame (10) can engage with the fixed frame (2) when it moves to the left. A top plate (11) for pushing concrete out is slidably connected inside the storage frame (6). The bottom of the fixed plate (4) is provided with a detection mechanism (12) for detecting the viscosity of concrete. Its characteristic is that It also includes a dispensing mechanism (13), and the top of the bracket (1) is provided with a dispensing mechanism (13) for moving the fixed rod (7). The dispensing mechanism (13) includes a slide rail (131), a first connecting rod (132) and a connecting plate (133). The slide rail (131) is connected inside the bracket (1). The first connecting rod (132) is connected to the left side of the limiting frame (10). The first connecting rod (132) is slidably connected to the slide rail (131). The connecting plate (133) is rotatably connected between the front side of the first connecting rod (132) and the front fixed rod (7). The connecting plate (133) is also rotatably connected between the rear side of the first connecting rod (132) and the rear fixed rod (7). It also includes a pulling mechanism (15) for pulling the first sliding rod (3). The pulling mechanism (15) includes a connecting frame (151), a dual-axis motor (152), a second connecting rod (153), a pulley group (154), a winding wheel (155), a second support frame (156), a roller (157), a connecting rope (158), a contact frame (159), a second sliding rod (1510), and an elastic element (1511). The connecting frame (151) is connected to the fixed frame (2). The connecting frame (151) is installed in the middle of the connecting frame (151). There is a dual-axis motor (152), and a second connecting rod (153) is rotatably connected to the upper part of the connecting frame (151). Both output shafts of the dual-axis motor (152) are connected to pulley sets (154) at the ends of the two shafts near the second connecting rod (153). Each pulley set (154) consists of two pulleys and a flat belt. The front end of the second connecting rod (153) is connected to a pulley on the front output shaft of the dual-axis motor (152), and the rear end of the second connecting rod (153) is connected to a pulley on the rear output shaft of the dual-axis motor (152). All are connected to pulleys. The two pulleys on the front are wrapped with flat belts, and the two pulleys on the rear are also wrapped with pulleys. The middle of the second connecting rod (153) is connected to a winding wheel (155). The top of the fixing frame (2) is connected to a second support frame (156). The second support frame (156) is rotatably connected to a roller (157). A connecting rope (158) is wound on the winding wheel (155). The connecting rope (158) is wound around the roller (157). The front side of the connecting rope (158) is connected to the first sliding rod (3). The two belts A contact frame (159) is connected between the right sides of the wheel assembly (154). A second sliding rod (1510) is slidably connected to the lower part of the connecting frame (151). The middle part of the second sliding rod (1510) is an inclined surface. The second sliding rod (1510) contacts the contact frame (159). The movement of the second sliding rod (1510) can rotate the lead screw (9). An elastic element (1511) is sleeved on the second sliding rod (1510). The two ends of the elastic element (1511) are connected to the second sliding rod (1510) and the connecting frame (151) respectively.

2. The prefabricated concrete viscosity testing device as described in claim 1, characterized in that, The testing mechanism (12) includes a tensile detector (121), a tensile sensor (122) and a display screen (123). The tensile detector (121) is installed at the bottom of the fixed plate (4). The tensile sensor (122) is slidably connected to the lower part of the tensile detector (121). The display screen (123) for displaying the measured tensile force value is installed on the left side of the tensile detector (121).

3. The prefabricated concrete viscosity testing device as described in claim 2, characterized in that, It also includes a vibration mechanism (14) for vibrating the fixed plate (4) and the sliding frame (5). The vibration mechanism (14) includes a first support frame (141), a vibrator (142) and a connecting pipe (143). The top of the fixed plate (4) is connected to the first support frame (141). The vibrator (142) is installed on the first support frame (141). The vibrator (142) can drive the fixed plate (4) and the sliding frame (5) to vibrate. The upper part of the first support frame (141) is connected to two connecting pipes (143) for connecting wires.

4. The prefabricated concrete viscosity testing device as described in claim 3, characterized in that, It also includes an extrusion mechanism (16) for extruding concrete. The extrusion mechanism (16) includes a fixed frame (161) and a sliding plate (163). The bottom of the top plate (11) is connected to the fixed frame (161). The upper part of the fixed frame (161) has a limiting groove (162) for clamping wooden rods. The lower part of the fixed frame (161) is slidably connected to the sliding plate (163).

5. The prefabricated concrete viscosity testing device as described in claim 4, characterized in that, It also includes a scraping mechanism (17) for scraping off excess concrete. The scraping mechanism (17) includes a support plate (171), a scraper (172) and a handle (173). The support plate (171) is connected to the middle of the fixed frame (2). The scraper (172) for scraping off concrete is slidably connected to the support plate (171). The scraper (172) can move to contact the sliding frame (5). The handle (173) is connected to the upper part of the scraper (172).

6. The prefabricated concrete viscosity testing device as described in claim 5, characterized in that, The end of the lead screw (9) is bent.

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