Automatic leveling and semi-automatic timing of the flow cone flow meter

Abstract

The utility model provides a kind of automatic leveling and semi-automatic timing's flow cone fluidity tester, belong to detection equipment technical field, and it include: support, hopper, semi-automatic timing device and automatic leveling mechanism;Support includes automatic leveling mechanism shell, bracing piece and tripod, bracing piece top end is fixedly connected with automatic leveling mechanism shell, bottom end is fixed on tripod;Tribrach has leg inclined extension outward;Hopper includes conical cavity and cylindrical slurry outlet nozzle;Semi-automatic timing device is fixed below the cylindrical slurry outlet nozzle of hopper, including pull valve, trigger mechanism, power module and timer, automatic leveling mechanism includes lining and leveling ball, lining is connected above the conical cavity of hopper, leveling ball is embedded between shell and lining.The utility model is integrated with automatic leveling function, without manual adjustment level, reduce operation time, and leveling accuracy is higher.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a flow cone flowability measuring instrument with automatic leveling and semi-automatic timing. Background Technology

[0002] In the quality control of cement-based grouting materials (such as cement grout, pressure grouting material, grouting mortar, etc.), flow cone fluidity is one of the core indicators for evaluating its workability. According to the national standard GB / T 50448-2015 Technical Specification for Application of Cement-based Grouting Materials, flow cone fluidity needs to be measured by using a special funnel (flow cone apparatus) to determine the grout outflow time, thereby evaluating the fluidity and filling properties of the grout.

[0003] Traditional flow cone apparatuses, mainly composed of a support, funnel, and stopwatch, suffer from the following significant drawbacks: low leveling efficiency and poor accuracy; the funnel's axis must be strictly perpendicular to the horizontal plane, otherwise, flow velocity measurements will be distorted. Existing equipment relies on manual observation of the horizontal bubble level to adjust the tripod height, which is extremely time-consuming (often several minutes) on uneven ground or in vibrating environments, and it is difficult to achieve the accuracy requirement of ±1°, directly affecting the reliability of test results; the timing operation has large human error; the current method requires the tester to manually start and stop the stopwatch: starting the timer when the valve is opened and stopping the timer the moment the slurry flow stops. This process suffers from visual judgment delay (average error of 0.3–0.5 seconds) and asynchronous operation problems, especially for fast-setting grouting materials (flow time <20 seconds), the error rate can be as high as 5% or more; insufficient adaptability to construction sites; construction sites are often accompanied by ground tilt, equipment vibration, and other interferences, requiring traditional equipment to be repeatedly leveled. Existing "automatic leveling" solutions mostly use motor-driven leveling mechanisms, which are complex in structure and require external power, making them unsuitable for environments without electricity or in damp construction sites. Existing automatic timing devices mostly use infrared sensors, which often have problems with low recognition rate and inaccurate recognition, and are relatively expensive. Utility Model Content

[0004] This invention provides an automatic leveling and semi-automatic timing flow cone flowability measuring instrument to overcome the shortcomings of existing flow cone instruments.

[0005] This utility model provides a flow cone flowability measuring instrument with automatic leveling and semi-automatic timing, including a support, a funnel, a semi-automatic timing device, and an automatic leveling mechanism. The support includes an automatic leveling mechanism housing, support rods, and a tripod. Three support rods are attached, with their top ends fixed to the automatic leveling mechanism housing and their bottom ends fixed to the tripod. The tripod has three legs that extend outwards at an angle. The funnel includes a conical cavity and a cylindrical discharge nozzle, with the upper part of the conical cavity connected to the automatic leveling mechanism. The semi-automatic timing device is fixed to the cylindrical discharge nozzle of the funnel. Below the spout are a pull-out valve, a trigger mechanism, a power module, and a timer. The valve is pull-out, and when the valve is pulled open, it triggers the timer to start timing. The timer has a stop switch and a display screen for displaying the time. The automatic leveling mechanism includes a housing, an inner liner, and leveling balls. The housing is the automatic leveling mechanism housing of the bracket and is connected to the bracket. The inner liner is connected to the top of the conical cavity of the funnel. The leveling balls are embedded between the housing and the inner liner, and use gravity to automatically level the inner liner and the funnel connected to it relative to the horizontal plane.

[0006] According to the present invention, an automatic leveling and semi-automatic timing flow cone flowability measuring instrument is provided, wherein the top end of the support rod is welded to the outer shell of the automatic leveling mechanism.

[0007] According to the present invention, an automatic leveling and semi-automatic timing flow cone flowability measuring instrument is provided, wherein an annular space is provided between the outer shell and the inner lining of the automatic leveling mechanism to accommodate the leveling ball, and the leveling ball can roll in the space to achieve automatic leveling.

[0008] According to the present invention, a flow cone flowability measuring instrument with automatic leveling and semi-automatic timing is provided. The semi-automatic timing device includes a pull-out valve located at the cylindrical slurry outlet, which can be pulled between an open and closed position to control the opening and closing of the cylindrical slurry outlet. A triggering mechanism is connected to the pull-out valve and a timer respectively. When the pull-out valve is pulled from the closed position to the open position, the triggering mechanism is triggered and sends a start signal to the timer. When the pull-out valve is reset from the open position to the closed position, the triggering mechanism is triggered and sends a stop signal to the timer. The timer is electrically connected to the triggering mechanism, and starts timing when it receives the start signal and stops timing when it receives the stop signal. The timer is equipped with a display screen to display the time elapsed during the timing process. A power module is electrically connected to the triggering mechanism and the timer respectively, providing working power to the triggering mechanism and the timer.

[0009] According to the present invention, an automatic leveling and semi-automatic timing flow cone flowability measuring instrument is provided, wherein the three legs of the tripod are of the same length and the included angle between adjacent legs is equal.

[0010] According to the present invention, the flowability measuring instrument of the flow cone with automatic leveling and semi-automatic timing is provided, wherein the conical cavity and the cylindrical slurry outlet are integrally formed.

[0011] According to the present invention, the flow cone flowability measuring instrument with automatic leveling and semi-automatic timing is provided, wherein the number of leveling balls is 3-6, and they are evenly distributed in the annular space between the outer shell and the inner liner.

[0012] According to the present invention, a flow cone flowability measuring instrument with automatic leveling and semi-automatic timing is provided, wherein the power module is a dry cell battery, the dry cell battery is installed in the battery compartment of the semi-automatic timing device, and the battery compartment is provided with an openable and closable compartment cover.

[0013] According to the present invention, a flow cone flowability measuring instrument with automatic leveling and semi-automatic timing is provided, wherein the pull-out valve is provided with a handle for easy pulling, and the handle is covered with a non-slip rubber sleeve.

[0014] According to the present invention, a flow cone flowability measuring instrument with automatic leveling and semi-automatic timing is provided. The timer is also provided with a reset button. Pressing the reset button can clear the time displayed by the timer.

[0015] This utility model provides an automatic leveling and semi-automatic timing flow cone flowability measuring instrument. By integrating an automatic leveling function, it eliminates the need for manual leveling, reducing operation time and improving leveling accuracy. The semi-automatic timing is mechanically triggered by a valve, avoiding the visual judgment delay and infrared sensor recognition error inherent in traditional manual timing, thus improving timing accuracy to ±0.1 seconds. The overall structure is compact, with a stable support frame, making it suitable for complex environments such as construction sites. It requires no external power supply; dry cell batteries provide power for scenarios without electricity. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the automatic leveling and semi-automatic timing provided by this utility model.

[0018] Figure label: 100. Bracket; 110. Automatic leveling mechanism housing; 120. Support rod; 130. Tripod; 131. Support leg; 200. Funnel; 210. Conical cavity; 220. Cylindrical nozzle; 300. Semi-automatic timing device; 310. Pull-out valve; 320. Triggering mechanism; 330. Power supply module; 340. Timer; 400. Automatic leveling mechanism; 410. Lining; 420. Leveling ball bearings. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" indicate the direction or positional relationship, which is usually based on Figure 1 The orientation and position of the flow cone flowability measuring instrument with automatic leveling and semi-automatic timing shown are for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] This utility model provides a flow cone flowability measuring instrument with automatic leveling and semi-automatic timing. See [link to related documentation] Figure 1 It consists of four main components. The support frame 100 includes an automatic leveling mechanism 400 housing 110, three support rods 120, and a tripod 130. The top of the support rods 120 is fixedly connected to the automatic leveling mechanism 400 housing 110, and the bottom is fixed to the tripod 130; the three legs 131 of the tripod 130 extend outwards at an angle, forming a stable support structure. The funnel 200 consists of a conical cavity 210 and a cylindrical slurry outlet 220. The upper part of the conical cavity 210 is connected to the automatic leveling mechanism 400, used to contain and guide the slurry flow. The semi-automatic timing device 300 is fixed below the cylindrical slurry outlet 220 and includes a pull-out valve 310, a triggering mechanism 320, a power module 330, and a timer 340. The pull-out valve 310 controls the opening and closing of the slurry outlet; when the valve is opened, it triggers the timer 340 to start. The timer 340 is equipped with a stop switch and a display screen. The automatic leveling mechanism 400 consists of an outer shell (i.e., the outer shell 110 of the automatic leveling mechanism 400 of the bracket 100), an inner liner 410, and leveling balls 420. The inner liner 410 is connected to the conical cavity 210 of the funnel 200, and the leveling balls 420 are embedded between the outer shell and the inner liner 410, using gravity to automatically level the inner liner 410 and the funnel 200.

[0024] Frame 100 Assembly: The tops of the three support rods 120 are fixed to the outer shell 110 of the automatic leveling mechanism 400 by welding or bolts, and the bottoms are rigidly connected to the tops of the three legs 131 of the tripod 130 (e.g., tightened with bolts), ensuring that the outward tilt angle of the tripod 130 legs 131 is consistent (approximately 30°-45°), forming a stable triangular support. Funnel 200 Installation: The top of the conical cavity 210 of the funnel 200 is fixed to the inner lining 410 of the automatic leveling mechanism 400 by flanges or clips, ensuring a sealed connection (to prevent grout leakage). Automatic Leveling Mechanism 400 Adjustment: An annular gap is reserved between the outer shell and the inner lining 410, and 3-6 stainless steel leveling balls 420 are built in to ensure that the balls can roll freely; when the measuring instrument is placed on an uneven surface, the balls roll downwards under gravity, causing the inner lining 410 and the funnel 200 to automatically adjust to a horizontal state. Semi-automatic timing device 300 assembly: Insert the pull-out valve 310 (made of wear-resistant plastic or metal) into the side slot of the cylindrical slurry outlet 220, and connect the end of the valve to the trigger mechanism 320 (mechanical contact switch); the trigger mechanism 320 is connected in series with the timer 340 and the power module 330 (dry battery) through wires, and the display screen of the timer 340 is fixed on the outside of the device for easy observation.

[0025] Integrated with automatic leveling, it eliminates the need for manual adjustment of the level, reducing operation time and providing higher leveling accuracy. The semi-automatic timing is mechanically triggered by a valve, avoiding the visual judgment delays and infrared sensor recognition errors inherent in traditional manual timing, improving timing accuracy to ±0.1 seconds. The overall structure is compact, and the support frame offers 100% stability, making it suitable for complex environments such as construction sites. No external power supply is required; dry cell batteries provide power for scenarios without electricity.

[0026] In one embodiment, the top end of the support rod 120 of the bracket 100 is welded to the housing 110 of the automatic leveling mechanism 400. The welding method is arc welding or laser welding, and the welding points are evenly distributed around the top end of the support rod 120 (at least 3 welding points for each support rod 120) to ensure that the connection strength is ≥50MPa.

[0027] The support rod 120 is made of stainless steel round rod with a diameter of 10-15mm, and the outer shell 110 of the automatic leveling mechanism 400 is a metal shell with a thickness of 2-3mm. Before welding, the connecting surfaces are derusted, and after welding, they are ground and polished to avoid stress concentration. The diameter of the welding area between each support rod 120 and the outer shell is ≥20mm to ensure that it does not loosen under vibration or impact.

[0028] Compared to bolted connections, welded connections offer higher rigidity and fatigue resistance, capable of withstanding the weight (approximately 5-10 kg) of the funnel 200 when filled with slurry, as well as vibrations from the construction site environment, thus extending the equipment's service life. Welded connections also prevent equipment tilting caused by loose bolts, ensuring the operational stability of the automatic leveling mechanism 400.

[0029] In one embodiment, an annular space is provided between the outer shell and the inner liner 410 of the automatic leveling mechanism 400. The leveling ball 420 (made of high-hardness bearing steel) is placed in this space. The diameter of the ball is 1-2 mm smaller than the width of the annular space to ensure free rolling. A retaining edge is provided on the inner side of the annular space to prevent the ball from falling off.

[0030] The outer shell and inner liner 410 are coaxially mounted, with the center of the annular space coinciding with the central axis of the funnel 200. There are four balls evenly distributed along the annular space, each with a surface hardened to reduce rolling wear. During assembly, ensure the annular space is free of impurities; if necessary, apply a small amount of waterproof grease to reduce rolling resistance.

[0031] The annular space provides a directional rolling path for the balls, preventing them from shifting and ensuring a smooth leveling process (leveling response time ≤ 2 seconds). The precise dimensional fit between the balls and the annular space allows for automatic leveling within a ±3° tilt range, meeting the levelness requirements for flow cone flowability measurement.

[0032] In one embodiment, the pull-out valve 310 of the semi-automatic timing device 300 has a flat plate structure and can be pulled radially along the slurry outlet. When closed, it completely blocks the slurry outlet, and when open, it completely disengages from the slurry outlet. The triggering mechanism 320 consists of two sets of mechanical contact switches, corresponding to the open and closed positions of the valve, respectively: when the valve moves from closed to open, it triggers the first set of contacts to close, sending a start signal to the timer 340; when the valve moves from open to closed, it triggers the second set of contacts to close, sending a stop signal to the timer 340. The timer 340 is a low-power digital timer 340 (accuracy 0.01 seconds), the display screen is an LCD screen (size 30×20mm), and the power module 330 consists of two AA dry batteries (battery life ≥100 hours).

[0033] Wear-resistant metal plates are installed at the contact ends of the valve and trigger mechanism 320, and waterproof microswitches are used for the contact switches. The timer 340 circuit integrates an anti-bounce design (0.05-second response delay) to avoid false triggering caused by valve vibration. The power module 330 is connected to the timer 340 and trigger mechanism 320 via a pluggable interface for easy battery replacement.

[0034] Mechanical contact triggering solves the problem of infrared sensing being easily interfered with by slurry vapor and dust. Valve action and timing are completely synchronized, eliminating the delay of "seeing the slurry flow before pressing the switch" required for manual timing. The low-power design and dry-cell battery power supply are suitable for humid construction site environments, eliminating concerns about leakage or power interface failure.

[0035] In one embodiment, the three legs 131 of the tripod 130 are of the same length (error ≤ 1mm), made of aluminum alloy (wall thickness 1.5-2mm), and the included angle between adjacent legs 131 is 120°. Rubber anti-slip pads (diameter 30-40mm) are installed at the ends of the legs 131.

[0036] The outriggers 131 are manufactured using a one-piece molding process to ensure consistent length. During the machining of the connecting seat at the top of the tripod 130, tooling is used to ensure the accuracy of the included angle of the three outriggers 131 (error ≤ 0.5°). The anti-slip pads are made of rubber and are fixed to the ends of the outriggers 131 with screws to increase friction with the ground.

[0037] The equal-length legs 131 and the equal-angle design ensure that the tripod 130 is subjected to uniform force, improving initial stability during placement and reducing the adjustment load on the automatic leveling mechanism 400. Anti-slip pads prevent the equipment from sliding on smooth surfaces (such as concrete), ensuring the equipment remains in place during measurement and improving measurement repeatability.

[0038] In one embodiment, the conical cavity 210 of the funnel 200 and the cylindrical slurry outlet 220 (50-80mm in length) are manufactured by an integral molding process, and the material is 304 stainless steel (1-2mm thick) or polytetrafluoroethylene (corrosion resistant), with no seam at the connection (rounded corner transition, radius 5-10mm).

[0039] The stainless steel material is made using an integrated stamping and welding process (with only the weld seam located in the non-contact slurry area), while the polytetrafluoroethylene material is made using injection molding. After molding, the inner wall is polished to reduce the resistance to slurry flow.

[0040] The one-piece molding eliminates the seams between separate parts, preventing slurry residue or leakage at the joints. The smooth inner wall reduces slurry adhesion, ensuring stable slurry flow and improving the accuracy of flowability measurements.

[0041] In one embodiment, the number of leveling balls 420 is 3-6 (preferably 4), made of bearing steel (chrome-plated for rust prevention), and evenly distributed along the annular space between the outer shell and the inner liner 410. The balls are screened to ensure that the diameter deviation is ≤0.1mm and the weight deviation is ≤0.5g; during assembly, the balls are placed at equal intervals along the annular space, and the inner liner 410 is rotated to confirm that the balls do not jam, ensuring that the force is evenly distributed during the leveling process.

[0042] The design of 3-6 ball bearings strikes a balance between leveling sensitivity and stability: fewer than 3 can easily lead to leveling deviations, while more than 6 can easily cause mutual interference; 4 ball bearings can improve leveling accuracy. Even distribution ensures symmetrical force distribution on the inner liner 410, preventing the funnel 200 from shaking during leveling and shortening leveling time.

[0043] In one embodiment, the power module 330 consists of two AA dry cell batteries (1.5V × 2), installed in the battery compartment of the semi-automatic timing device 300. The battery compartment is located on the side of the device (dimensions 50 × 30 × 20 mm), and the compartment cover is connected to the compartment body by a snap-fit. A waterproof sealing ring (made of silicone) is provided on the inside of the compartment cover. Positive and negative electrode springs (made of phosphor bronze, with good conductivity) are provided inside the battery compartment. The springs are soldered to the wires and then wrapped with insulating glue. The compartment cover snap-fit ​​is designed as a "press-pop" type for easy and quick battery replacement. The compression of the sealing ring is 0.5-1 mm to ensure the waterproof rating.

[0044] The dry cell battery power supply solves the problem of no external power source on the construction site. Two AA batteries can support continuous operation for ≥100 hours, meeting the needs of multiple tests per day. The waterproof battery compartment prevents slurry leakage or rainwater ingress that could cause short circuits, improving the reliability of the equipment in humid environments.

[0045] In one embodiment, the outer end of the pull-out valve 310 is provided with a handle made of ABS plastic (with a frosted surface) and covered with a non-slip rubber sleeve (1-2mm thick, with a diamond pattern on the surface); the handle is connected to the valve by a thread and can be disassembled and replaced.

[0046] The rubber sleeve is combined with the handle using a secondary injection molding process, with a texture depth of 0.5-1mm, ensuring a stable grip even when hands are sweaty; the end of the handle has a hanging hole for attaching a tag or anti-loss rope.

[0047] The anti-slip rubber sleeve increases the friction between the hand and the handle, preventing slippage and unstable valve operation. The handle is of moderate length, ergonomically designed, reducing operator fatigue and improving the efficiency of single-test operations.

[0048] In one embodiment, the timer 340 is provided with a reset button located below the display screen and is a touch switch; when the reset button is pressed, the internal circuit of the timer 340 triggers a clear signal, the time on the display screen returns to zero, and the timing state is disconnected (the timing needs to be restarted).

[0049] The reset button is connected to the timer 340 circuit via gold-plated contacts to ensure conductivity; the button surface is marked with "Reset" and features a convex design for easy blind operation; the circuit design incorporates anti-accidental touch logic (reset is only performed if pressed for more than 0.5 seconds) to prevent accidental operation.

[0050] The reset button allows the device to quickly enter the next set of test states (reset operation time ≤ 1 second), which is more efficient than the traditional power-off reset method (which requires battery removal). The anti-accidental touch design avoids accidental touch during the test, which will cause timing interruption and improves operational reliability.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flow cone flowability measuring instrument with automatic leveling and semi-automatic timing, characterized in that, Includes a support frame, funnel, semi-automatic timing device, and automatic leveling mechanism; The support includes an automatic leveling mechanism housing, support rods, and a tripod. There are three support rods, the top of which is fixedly connected to the automatic leveling mechanism housing and the bottom of which is fixed to the tripod. The tripod has three legs that extend outward at an angle. The funnel includes a conical cavity and a cylindrical slurry outlet, with the upper part of the conical cavity connected to the automatic leveling mechanism; The semi-automatic timing device is fixed below the cylindrical slurry outlet of the funnel and includes a pull-out valve, a triggering mechanism, a power module, and a timer. The valve is pull-out type, and when the valve is pulled open, it triggers the timer to start timing. The timer is equipped with a stop timing switch and a display screen for displaying the time. The automatic leveling mechanism includes a housing, an inner liner, and leveling balls. The housing is the automatic leveling mechanism housing of the bracket and is connected to the bracket. The inner liner is connected to the top of the conical cavity of the funnel. The leveling balls are embedded between the housing and the inner liner, and the inner liner and the funnel connected to it are automatically leveled relative to the horizontal plane by gravity.

2. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, The top end of the support rod is welded to the outer shell of the automatic leveling mechanism.

3. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, An annular space is provided between the outer shell and the inner lining of the automatic leveling mechanism to accommodate the leveling balls, which can roll within the space to achieve automatic leveling.

4. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, The semi-automatic timing device includes a pull-out valve located at the cylindrical slurry outlet, which can be pulled between an open and closed position to control the opening and closing of the slurry outlet. A triggering mechanism is connected to both the pull-out valve and the timer. When the pull-out valve is pulled from the closed position to the open position, the triggering mechanism is activated and sends a start signal to the timer. When the pull-out valve returns to the closed position, the triggering mechanism is activated and sends a stop signal to the timer. The timer is electrically connected to the triggering mechanism, starting timing upon receiving the start signal and stopping timing upon receiving the stop signal. The timer is equipped with a display screen showing the elapsed time. A power module is electrically connected to both the triggering mechanism and the timer, providing them with operating power.

5. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, The tripod has three legs of the same length, and the included angle between adjacent legs is equal.

6. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, The conical cavity and the cylindrical nozzle are integrally formed.

7. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, The number of leveling balls is 3-6, and they are evenly distributed in the annular space between the outer shell and the inner liner.

8. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, The power module is a dry cell battery, which is installed in the battery compartment of the semi-automatic timing device. The battery compartment is equipped with an openable and closable cover.

9. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, The pull-out valve is equipped with a handle for easy pulling, and the handle is covered with a non-slip rubber sleeve.

10. The flow cone flowability measuring instrument with automatic leveling and semi-automatic timing according to claim 1, characterized in that, The timer is also equipped with a reset button. Pressing the reset button will clear the time displayed on the timer.

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