Concrete slump measuring hopper
By using a tension spring and a speed-limiting component in the concrete slump measurement bucket, the slump bucket is lifted at a uniform speed, which solves the problems of unstable speed and power dependence in the existing technology and improves the accuracy and reliability of the measurement. .
Patent Information
- Application Number
- CN202420716837.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-07
AI Technical Summary
In the existing concrete slump measurement technology, the portable and electric lifting methods each have problems of speed instability and power dependence, which affects the accuracy and reliability of the measurement, and is difficult to make effective measurements in a power-free environment.
A concrete slump measuring bucket is designed. By setting a tension spring as the lifting drive and equipped with a speed-limiting component, the slump bucket can be lifted at a uniform speed, avoiding dependence on external electricity.
It realizes the lifting of the slump tube at a uniform speed without electric drive, improves the accuracy and reliability of measurement, and is suitable for various complex working environments.
Smart Images
Figure CN222379696U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slump measurement, in particular to a concrete slump measuring bucket. Background Art
[0002] Concrete slump is an important engineering parameter, which mainly refers to the plasticization and pumpability of concrete. Overall, it ensures the normal progress of engineering construction. Specifically, the slump reflects the workability of concrete, that is, whether the concrete is easy to construct and has uniform and dense performance, including the water retention, fluidity and cohesion of concrete.
[0003] In traditional technology, the measurement methods of concrete slump mainly include cone slump measurement method and V-funnel measurement method. Taking cone slump measurement method as an example, the slump cone is placed on a flat horizontal ground, and concrete is filled into the mold by hand or mechanical device, and then the top of the mold is scraped flat with a flat plate or scraper to make it flush with the top of the mold, and then the mold is slowly lifted to allow the concrete to collapse freely until the concrete stops flowing. Finally, the slump height of the concrete is measured with a ruler, which is the slump of the concrete.
[0004] However, in the prior art, the slump cone is lifted by hand or by electric lifting. Although these two methods can meet the basic detection requirements in most cases, they each have obvious shortcomings: although the hand-held method is easy to operate and does not require additional equipment, due to the limited strength and stability of humans, the speed often fluctuates during the process of lifting the slump cone, and this fluctuation may cause deviations in the slump measurement results, especially in situations where high-precision measurements are required. The limitations of the hand-held method are more prominent; and although the electric lifting method can achieve stable speed control, it is limited by the power supply environment. In the absence of an external power supply, the electric lifting equipment cannot work normally, which greatly limits the selection of detection sites, especially in the wild, remote areas or temporarily built detection points, where it is often difficult to provide a stable power supply. Therefore, the application of the electric lifting method in these situations is greatly limited. Therefore, whether it is the hand-held or electric lifting method, there are respective limitations in the slump detection process, which in turn affects the accuracy and reliability of the measurement, and may also limit the selection of detection sites, bringing certain inconveniences to actual engineering applications. Utility Model Content
[0005] The utility model aims to provide a concrete slump measuring bucket to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A concrete slump measuring bucket comprises a bottom plate; a slump cone is placed on the top of the bottom plate, a support frame is fixedly connected to the top of the bottom plate, a lifting assembly is arranged on the support frame, and the lifting assembly is used to lift the slump cone at a uniform speed; a measuring assembly for measuring the height of concrete after collapse is arranged on one side of the support frame; the lifting assembly comprises a lifting cylinder, the lifting cylinder is fixedly connected to the top of the support frame, a piston column is slidably connected between the inner walls of the lifting cylinder, a tension spring is suspended between the top of the inner wall of the lifting cylinder and the top of the piston column, and the top of the inner side of the support frame is A through hole communicated with the interior of the pulling cylinder is opened, a lifting rope is hung at the bottom of the piston column, the bottom of the lifting rope extends through the through hole to the inner side of the support frame and is hung with a disc, the bottom of the disc is rotatably connected to a spring hook, and a handle is rotatably connected to the outside of the collapse cylinder, and the handle is used in conjunction with the spring hook; a speed limiting component is arranged at the top of the side wall of the pulling cylinder, and the speed limiting component is used to control the moving speed of the piston column; an operating frame is fixedly connected to the outside of the pulling cylinder, and an operating component is arranged inside the operating frame, and the operating component is used to control the piston column.
[0008] By adopting the above technical solution, a tension spring is set as the driving force for lifting, so that the collapse cylinder does not need to rely on external electric drive when lifting, and a speed limiting component is set to limit the rebound force of the tension spring. The actual collapse cylinder can be lifted upward at a uniform speed, thereby meeting the requirement of lifting the collapse cylinder at a uniform speed without electric drive.
[0009] A further improvement of the technical solution of the utility model is that the speed limiting component includes an external threaded cylinder fixedly connected to the outside of the pulling cylinder, the external threaded cylinder is communicated with the inside of the pulling cylinder, strip grooves are symmetrically opened on the external threaded cylinder, and the outer side of the external threaded cylinder is threadedly connected to an internal threaded sleeve.
[0010] By adopting the above technical solution, when the piston column is released, it can bounce upward under the rebound action of the tension spring, but during the bouncing process, positive pressure will be generated inside the lifting cylinder. Since the external threaded cylinder and the internal threaded sleeve are ventilated only through the strip grooves in the uncovered parts, the air pressure discharge will be restricted, so that there is an upper speed limit for the reset of the piston column, and the piston column always moves at the upper speed limit at the beginning, thereby driving the lifting cylinder to be lifted at a uniform speed at this speed.
[0011] A further improvement of the technical solution of the utility model is that: the operating component includes an operating rod, the operating rod is slidably connected to one side of the operating frame, one end of the operating rod extends to the interior of the operating frame and is fixedly connected to a pad, a side of the pad away from the operating rod is fixedly connected to a buckle, one side of the buckle extends to the interior of the pulling cylinder, the buckle is slidably connected to the pulling cylinder, a groove is provided on the outside of the piston column, a slope is provided on one side of the buckle, one end of the operating rod away from the pad extends to the outside of the operating frame and is fixedly connected to a pull buckle, and a return spring is sleeved on the outside of the operating rod and located inside the operating frame.
[0012] By adopting the above technical solution, during the downward movement of the piston column, the inclined surface of the buckle is squeezed to cause the buckle to automatically move to the side close to the return spring, and the return spring is compressed until the buckle is directly opposite the slot. At this time, the buckle pops out and is stuck in the slot under the elastic force of the return spring, so that the tension spring has potential energy, and the piston column has a rebound tendency but cannot rebound.
[0013] A further improvement of the technical solution of the utility model is that two fixed blocks are symmetrically fixedly connected to the outside of the collapse cone, the top of the support frame is symmetrically slidably connected to the guide column, and the bottom of the guide column extends to the inside of the support frame and is fixedly connected to the top of the fixed block.
[0014] The adoption of the technical solution makes it easy to limit the lifting path of the collapse cone, so that the collapse cone can be lifted vertically upward.
[0015] A further improvement of the technical solution of the utility model is that a shovel plate is rotatably connected to the outer side of the guide column, and the bottom of the shovel plate is flush with the top of the collapse cylinder.
[0016] By adopting the above technical solution and providing an integrated shoveling plate, the shoveling operation can be satisfied while avoiding the loss of accessories.
[0017] A further improvement of the technical solution of the utility model is that the measuring component includes a slider and a position mark frame, the slider is slidably connected to a column on one side of the support frame, the support frame is provided with a scale on one side of the column, sliding grooves are provided on both sides of the inner wall of the position mark frame, and sliding buckles are symmetrically fixedly connected on both sides of the slider, and the sliding buckles are slidably connected to the sliding grooves.
[0018] By adopting the above technical solution, the position marker frame is slid at an appropriate height so that the slide rail slides in the track groove, and when the position marker frame is partially above the highest position of the concrete, the slider is moved downward so that the bottom of the position marker frame is flush with the top of the concrete. At this time, the scale corresponding to the bottom of the position marker frame is the height after collapse.
[0019] A further improvement of the technical solution of the utility model is that a positioning buckle is fixedly connected to the top of the support frame, and the position marking frame is used in conjunction with the positioning buckle.
[0020] By adopting the above technical solution, it is convenient to place the position marker frame in the positioning buckle, so that the position marker frame can be simply fixed.
[0021] The further improvement of the technical solution of the utility model is that: the slide block is symmetrically provided with track grooves, the bottom of the position marker frame is fixedly connected with a slide rail, the slide rail is slidably connected with the track groove, and the track groove and the slide rail are arranged in a T shape.
[0022] By adopting the above technical solution, when the slide rail slides into the track groove, a limit can be provided so that the position marker frame and the slide block can only slide relative to each other in a linear direction.
[0023] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0024] 1. The utility model provides a concrete slump measuring bucket. By setting a tension spring as a lifting drive, the slump cone can be lifted without the help of external electric drive, and a speed limiting component is set to limit the rebound force of the tension spring, so that the slump cone can be lifted upward at a uniform speed, and no electric drive is required, which is convenient for operation in various complex working environments. At the same time, the slump cone can be lifted at a uniform speed without electric drive, which greatly improves the accuracy of measurement.
[0025] 2. The utility model provides a concrete slump measuring bucket. During the bouncing process of the piston column, positive pressure will be generated inside the lifting cylinder. Since ventilation is only carried out between the external threaded cylinder and the internal threaded sleeve through the strip grooves in the uncovered parts, the discharge of air pressure will be restricted, so that there is an upper speed limit for the reset of the piston column, and the piston column always moves at the upper speed limit at the beginning, thereby driving the lifting cylinder to be lifted uniformly at the speed.
[0026] 3. The utility model provides a concrete slump measuring bucket, which can perform concrete leveling operations and height measurement operations by setting an integrated measuring component and a shovel plate, and can be integrally connected to the device, thereby avoiding the problem of accessories being lost or inconvenient to keep during the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The utility model is further described below in conjunction with the accompanying drawings.
[0028] Figure 1 It is a schematic diagram of the structure of the utility model in partial section;
[0029] Figure 2 It is a structural schematic diagram of the utility model when the collapse cone is not lifted;
[0030] Figure 3 It is a structural schematic diagram of the spring hook and lifting docking state of the utility model;
[0031] Figure 4 It is a structural schematic diagram of the utility model collapse cone in a lifting state;
[0032] Figure 5 This is a schematic diagram of the structure of the position marker frame of the utility model during the measurement process;
[0033] Figure 6It is a schematic diagram of the structure of the measuring component of the utility model;
[0034] Figure 7 For the utility model Figure 7 Enlarged view of point A in the middle;
[0035] Figure 8 For the utility model Figure 6 Enlarged view of point B in the middle;
[0036] Fig. 9 For the utility model Figure 5 Enlarged view of point C in the middle;
[0037] In the figure: 1. bottom plate; 2. support frame; 3. lifting cylinder; 4. piston column; 5. tension spring; 6. through hole; 7. lifting rope; 8. spring hook; 9. collapse cylinder; 10. handle; 11. guide column; 12. fixing block; 13. operating frame; 14. pad; 15. buckle; 16. operating lever; 17. slot; 18. pull buckle; 19. slider; 20. position mark frame; 21. slide groove; 22. slide buckle; 23. track groove; 24. slide rail; 26. positioning buckle; 27. shovel plate; 28. scale; 29. external threaded cylinder; 30. strip groove; 31. internal threaded sleeve; 32. disc; 33. reset spring. DETAILED DESCRIPTION
[0038] The present invention is further described in detail below in conjunction with the embodiments:
[0039] Example 1
[0040] like Figure 1 and Figure 2As shown, the utility model provides a concrete slump measuring bucket, comprising a bottom plate 1; a slump cone 9 is placed on the top of the bottom plate 1, a support frame 2 is fixedly connected to the top of the bottom plate 1, a lifting assembly is arranged on the support frame 2, and the lifting assembly is used to lift the slump cone 9 at a uniform speed; a measuring assembly for measuring the height of concrete after collapse is arranged on one side of the support frame 2; the lifting assembly comprises a lifting cylinder 3, the lifting cylinder 3 is fixedly connected to the top of the support frame 2, a piston column 4 is slidably connected between the inner walls of the lifting cylinder 3, a tension spring 5 is suspended between the top of the inner wall of the lifting cylinder 3 and the top of the piston column 4, and the top of the inner side of the support frame 2 is A through hole 6 communicating with the interior of the lifting cylinder 3 is opened in the part, a lifting rope 7 is suspended at the bottom of the piston column 4, the bottom of the lifting rope 7 extends through the through hole 6 to the inner side of the support frame 2 and is suspended with a disc 32, the bottom of the disc 32 is rotatably connected with a spring hook 8, and a handle 10 is rotatably connected between the outer sides of the collapse cylinder 9, and the handle 10 is used in conjunction with the spring hook 8; a speed limiting component is arranged at the position of the top of the side wall of the lifting cylinder 3, and the speed limiting component is used to control the moving speed of the piston column 4, and an operating frame 13 is fixedly connected to the outer side of the lifting cylinder 3, and an operating component is arranged inside the operating frame 13, and the operating component is used to control the piston column 4.
[0041] In this embodiment, by setting the tension spring 5 as the lifting drive, the collapse cylinder 9 does not need to rely on external electric drive when lifting, and a speed limiting component is provided to limit the rebound force of the tension spring 5. The actual collapse cylinder 9 can be lifted upward at a uniform speed, thereby being able to lift the collapse cylinder 9 at a uniform speed without electric drive, which greatly facilitates the actual operation.
[0042] Example 2
[0043] like Figure 5 and Fig. 9 As shown, based on Example 1, the utility model provides a technical solution: Preferably, the speed limiting component includes an external threaded tube 29 fixedly connected to the outside of the pulling tube 3, the external threaded tube 29 is communicated with the interior of the pulling tube 3, and strip grooves 30 are symmetrically opened on the external threaded tube 29. The outer side of the external threaded tube 29 is threadedly connected to an internal threaded sleeve 31.
[0044] In this embodiment, when the piston column 4 is released, it can bounce upward under the rebound action of the tension spring 5, but during the bouncing process, positive pressure will be generated inside the lifting cylinder 3. Since ventilation is only carried out between the external threaded cylinder 29 and the internal threaded sleeve 31 through the strip groove 30 in the uncovered part, the air pressure discharge will be restricted, so that there is an upper speed limit for the reset of the piston column 4, and the piston column 4 always moves at the upper speed limit at the beginning, thereby driving the lifting cylinder 3 to be lifted at a uniform speed at this speed.
[0045] Example 3
[0046] like Figure 1 and Figure 7 As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, the operating component includes an operating rod 16, which is slidably connected to one side of the operating frame 13, one end of the operating rod 16 extends to the inside of the operating frame 13 and is fixedly connected to a pad 14, a side of the pad 14 away from the operating rod 16 is fixedly connected to a buckle 15, one side of the buckle 15 extends to the inside of the pulling cylinder 3, the buckle 15 is slidably connected to the pulling cylinder 3, a slot 17 is provided on the outside of the piston column 4, a slope is provided on one side of the buckle 15, one end of the operating rod 16 away from the pad 14 extends to the outside of the operating frame 13 and is fixedly connected to a pull buckle 18, and a reset spring 33 is sleeved on the outside of the operating rod 16 and located inside the operating frame 13.
[0047] In this embodiment, during the downward movement of the piston column 4, the inclined surface of the buckle 15 is squeezed to cause the buckle 15 to automatically move toward the side close to the return spring 33, and the return spring 33 is compressed until the buckle 15 is directly opposite the slot 17. At this time, the buckle 15 pops out and is stuck in the slot 17 under the elastic force of the return spring 33, so that the tension spring 5 has potential energy, and the piston column 4 has a rebound tendency but cannot rebound.
[0048] like Figure 2 and Figure 3 As shown, preferably, two fixed blocks 12 are symmetrically fixedly connected to the outer side of the collapse cone 9, and the top of the support frame 2 is symmetrically slidably connected to the guide column 11, and the bottom of the guide column 11 extends to the inner side of the support frame 2 and is fixedly connected to the top of the fixed block 12.
[0049] In this embodiment, it is convenient to limit the lifting path of the collapse cone 9 so that the collapse cone 9 can be lifted vertically upward, making the lifting process of the collapse cone 9 more stable, avoiding horizontal movement, and greatly improving the accuracy of the powerless measurement process.
[0050] like Figure 1 and Figure 2 As shown, preferably, the outer side of the guide column 11 is rotatably connected with a scraping plate 27, and the bottom of the scraping plate 27 is flush with the top of the collapse cone 9.
[0051] In this embodiment, by providing an integrated shoveling plate 27, the concrete top can be shoveled and leveled while avoiding the loss of accessories.
[0052] Example 4
[0053] like Figure 6 and Figure 8As shown, on the basis of Example 3, the utility model provides a technical solution: preferably, the measuring component includes a slider 19 and a position mark frame 20, the slider 19 is slidably connected to a column on one side of the support frame 2, the support frame 2 is provided with a scale 28 on one side of the column, and both sides of the inner wall of the position mark frame 20 are provided with sliding grooves 21, and the two sides of the slider 19 are symmetrically fixedly connected with sliding buckles 22, and the sliding buckles 22 are slidably connected to the sliding grooves 21.
[0054] In this embodiment, the position marker frame 20 is slid at a suitable height so that the slide rail 24 slides in the track groove 23, so that the position marker frame 20 slides relative to the slider 19, and the position marker frame 20 gradually moves to the top of the concrete, and when the position marker frame 20 is partially above the highest position of the concrete, the slider 19 is moved downward so that the bottom of the position marker frame 20 is flush with the top of the concrete. At this time, the scale corresponding to the bottom of the position marker frame 20 is the height after collapse.
[0055] like Figure 2 and Figure 3 As shown, preferably, a positioning buckle 26 is fixedly connected to the top of the support frame 2, and the position marking frame 20 is used in conjunction with the positioning buckle 26.
[0056] In this embodiment, it is convenient to place the position marker frame 20 in the positioning buckle 26 so that the position marker frame 20 can be simply fixed.
[0057] like Figure 6 and Figure 8 As shown, preferably, the slider 19 is symmetrically provided with a track groove 23 , the bottom of the position marker frame 20 is fixedly connected with a slide rail 24 , the slide rail 24 is slidably connected to the track groove 23 , and the track groove 23 and the slide rail 24 are arranged in a T shape.
[0058] In this embodiment, when the slide rail 24 slides into the track groove 23, a limit can be provided so that the position marker frame 20 and the slider 19 can only slide relative to each other in a linear direction. The slide rail 24 only exists in a partial area of the position marker frame 20. When the area where the slide rail 24 does not exist is opposite to the track groove 23, the slider 19 is disengaged from the position marker frame 20, that is, the position marker frame 20 is flipped over by the cooperation of the slide buckle 22 and the slide groove 21.
[0059] The following is a detailed description of the working principle of the concrete slump measuring bucket.
[0060] like Figure 1 - Fig. 9As shown, initially, the slump cone 9 is placed on the bottom plate 1, concrete is poured into the slump cone 9, and after it is filled and compacted, the shovel plate 27 is rotated to smooth the top of the concrete in the slump cone 9, and then the spring hook 8 is pulled downward to make the tension spring 5 in a stretched state. During the downward pulling process, the piston column 4 is driven to move downward, and the inclined surface of the buckle 15 is squeezed during the process, so that the buckle 15 automatically moves to the side close to the reset spring 33, and the reset spring 33 is compressed until the buckle 15 is facing the slot 17. At this time, the buckle 15 pops up and snaps into the slot 17 under the elastic force of the reset spring 33, so that the tension spring 5 has potential energy, and the piston column 4 has a rebound tendency but cannot rebound; at this time, the handle 10 is turned over, and the spring hook 8 is buckled with the handle 10, and the lifting preparation work is completed;
[0061] During lifting, the buckle 18 is pulled by hand, so that the operating rod 16 drives the pad 14 to move, and the reset spring 33 is squeezed while driving the buckle 15 to leave the slot 17, thereby releasing the piston column 4, so that the piston column 4 can bounce upward under the rebound action of the tension spring 5. However, during the bouncing process, positive pressure will be generated inside the lifting cylinder 3. Since the external threaded cylinder 29 and the internal threaded sleeve 31 are ventilated only through the strip groove 30 of the uncovered part, the air pressure discharge will be limited, so that there is an upper speed limit for the reset of the piston column 4, and the piston column 4 always moves at the upper speed limit at the beginning, thereby driving the lifting cylinder 3 to be lifted uniformly at the speed, and the concrete begins to collapse during the lifting process;
[0062] The internal threaded sleeve 31 can be rotated to change the coverage area of the strip groove 30, thereby adjusting the air pressure release speed, and further realizing the control of the pulling speed;
[0063] After being stationary for a period of time, the slider 19 is lifted upwards, so that the position frame 20 moves upwards and disengages from the positioning buckle 26, and then the position frame 20 can be turned over to a horizontal state. At this time, the position frame 20 is slid at a suitable height, so that the slide rail 24 slides in the track groove 23, and when the position frame 20 is partially above the highest position of the concrete, the slider 19 is moved downwards, so that the bottom of the position frame 20 is flush with the top of the concrete. At this time, the scale corresponding to the bottom of the position frame 20 is the height after collapse, and the height after collapse is subtracted from the height of the slump cone 9 to obtain the slump index of the concrete;
[0064] After the measurement is completed, the slide rail 24 is slid along the track groove 23 in the opposite direction of the previous process to reset, and after the slide rail 24 is slid out of the track groove 23, the position marker frame 20 is flipped to a vertical state (while lifting the slider 19 upwards during the process), so that the top of the position marker frame 20 is located directly above the positioning buckle 26, and the position marker frame 20 can be placed in the positioning buckle 26; then the concrete on the bottom plate 1 is cleaned;
[0065] After the cleaning is completed, the collapse cone 9 can be put down by releasing the connection between the spring hook 8 and the handle 10, so that the bottom of the collapse cone 9 contacts the top of the base plate 1, and the measuring device is reset.
[0066] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A concrete slump measuring bucket, comprising a bottom plate (1); characterized in that: A slump cone (9) is placed on the top of the base plate (1), a support frame (2) is fixedly connected to the top of the base plate (1), a lifting assembly is arranged on the support frame (2), and the lifting assembly is used to lift the slump cone (9) at a uniform speed; a measuring assembly for measuring the height of concrete after collapse is arranged on one side of the support frame (2); The lifting assembly comprises a lifting cylinder (3), the lifting cylinder (3) is fixedly connected to the top of the support frame (2), a piston column (4) is slidably connected between the inner wall of the lifting cylinder (3), a tension spring (5) is suspended between the top of the inner wall of the lifting cylinder (3) and the top of the piston column (4), a through hole (6) communicating with the inside of the lifting cylinder (3) is opened at the top of the inner side of the support frame (2), a lifting rope (7) is suspended at the bottom of the piston column (4), the bottom of the lifting rope (7) extends to the inner side of the support frame (2) through the through hole (6) and is suspended with a disc (32), the bottom of the disc (32) is rotatably connected with a spring hook (8), and a handle (10) is rotatably connected between the outer sides of the collapse cylinder (9), and the handle (10) is used in conjunction with the spring hook (8); A speed limiting component is arranged near the top of the side wall of the pulling cylinder (3), and the speed limiting component is used to control the moving speed of the piston column (4). An operating frame (13) is fixedly connected to the outer side of the pulling cylinder (3), and an operating component is arranged inside the operating frame (13), and the operating component is used to control the piston column (4).
2. A concrete slump measuring bucket according to claim 1, characterized in that: The speed limiting component comprises an external threaded cylinder (29) fixedly connected to the outside of the pulling cylinder (3), the external threaded cylinder (29) is communicated with the inside of the pulling cylinder (3), strip grooves (30) are symmetrically provided on the external threaded cylinder (29), and the outer side of the external threaded cylinder (29) is threadedly connected to an internal threaded sleeve (31).
3. A concrete slump measuring bucket according to claim 2, characterized in that: The operating assembly comprises an operating rod (16), wherein the operating rod (16) is slidably connected to one side of the operating frame (13), one end of the operating rod (16) extends to the inside of the operating frame (13) and is fixedly connected to a pad (14), a side of the pad (14) away from the operating rod (16) is fixedly connected to a buckle (15), one side of the buckle (15) extends to the inside of the pulling cylinder (3), the buckle (15) is slidably connected to the pulling cylinder (3), a slot (17) is provided on the outside of the piston column (4), one side of the buckle (15) is provided with an inclined surface, one end of the operating rod (16) away from the pad (14) extends to the outside of the operating frame (13) and is fixedly connected to a pull buckle (18), and a return spring (33) is sleeved on the outside of the operating rod (16) and located inside the operating frame (13).
4. A concrete slump measuring bucket according to claim 3, characterized in that: Two fixed blocks (12) are symmetrically fixedly connected to the outer side of the collapse cone (9), and the top of the support frame (2) is symmetrically slidably connected to a guide column (11), and the bottom of the guide column (11) extends to the inner side of the support frame (2) and is fixedly connected to the top of the fixed block (12).
5. A concrete slump measuring bucket according to claim 4, characterized in that: The outer side of the guide column (11) is rotatably connected with a scraping plate (27), and the bottom of the scraping plate (27) is flush with the top of the collapse cone (9).
6. A concrete slump measuring bucket according to claim 5, characterized in that: The measuring assembly comprises a slider (19) and a position mark frame (20), wherein the slider (19) is slidably connected to a column on one side of a support frame (2), and the support frame (2) is provided with a scale (28) on one side of the column, and both sides of the inner wall of the position mark frame (20) are provided with sliding grooves (21), and both sides of the slider (19) are symmetrically fixedly connected with sliding buckles (22), and the sliding buckles (22) are slidably connected to the sliding grooves (21).
7. A concrete slump measuring bucket according to claim 6, characterized in that: A positioning buckle (26) is fixedly connected to the top of the support frame (2), and the position marking frame (20) is used in conjunction with the positioning buckle (26).
8. A concrete slump measuring bucket according to claim 7, characterized in that: The slide block (19) is symmetrically provided with a track groove (23); the bottom of the position marker frame (20) is fixedly connected with a slide rail (24); the slide rail (24) is slidably connected to the track groove (23); and the track groove (23) and the slide rail (24) are arranged in a T shape.