Measuring manual bucket scale

Abstract

The present invention relates to a metering manual bucket-turning scale, which is used to measure the weight parameters of fluid poured from a barrel-shaped container. The metering manual bucket-turning scale includes: a frame device provided with a lifting mechanism; a cantilever frame, the lifting mechanism is drivingly connected to the cantilever frame, and the cantilever frame includes a first arm and a second arm. The metering component includes a weighing meter, a first sensor and a second sensor. The bucket-turning device includes a first connecting arm, a second connecting arm, a flipping drive component and a barrel body fixing component, the first connecting arm is fixedly connected to the first sensor, and the second connecting arm is fixedly connected to the second sensor; wherein the flipping drive component is used to drive the barrel body fixing component to flip relative to the cantilever frame. The first sensor and the second sensor are respectively installed at the ends of the cantilever frame, and are close to the center line position of the barrel-shaped container fixed by the barrel body fixing component, which can reduce the difference in torque force and improve the stability of measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of weighing, in particular to a metering manual bucket-turning scale. Background Art

[0002] Cylindrical oil drums can hold fuel, lubricants, dyes, and other liquids. They have a hole at the top through which the liquid can flow. To facilitate emptying, specialized equipment is designed for this purpose. However, these devices cannot measure the amount of liquid poured or remaining in the drum, forcing users to perform a secondary metering operation. This not only requires additional metering equipment, but also prevents the poured liquid from mixing with the original drum, resulting in significant waste.

[0003] Chinese patent CN204702465U discloses a bucket inverted scale, which includes a frame, an electric control box on one side of the frame, a clamping and flipping structure on the other side, a lifting plate installed on the frame, and the lifting plate is driven by the electric control box to drive the clamping and flipping structure to move up and down. A weighing sensor is installed on the lifting plate, and the weighing sensor includes a shell and mounting holes arranged on both sides of the shell. The left mounting hole is connected to the lifting plate, and the right mounting hole is connected to the clamping and flipping structure. U-shaped grooves are symmetrically arranged above the shell, and a groove is arranged between the U-shaped grooves. Inverted U-shaped holes are symmetrically arranged below the shell, and a boss is arranged between the inverted U-shaped holes. Weight sensing chips are respectively installed in the groove and the boss, and the sensing chip is connected to the signal line. The signal line extends out of the sensor shell and is connected to the weighing display instrument at the upper end of the frame.

[0004] However, the sensor in the above-mentioned barrel inverting scale is far away from the center of the oil barrel, resulting in the torque acting on the sensor being in a constantly changing state when the oil barrel is pouring liquid. The barrel inverting scale has technical problems such as low measurement accuracy, great difficulty in debugging, and inability to accurately output accurate data on the real-time flow changes of the oil barrel. Accurate measurement data is one of the most core indicators of the oil barrel scale, so it needs to be improved. Summary of the Invention

[0005] In order to overcome the problems existing in the related art, an embodiment of the present invention provides a metering manual bucket-turning scale.

[0006] According to an embodiment of the present invention, a metering manual bucket-turning scale is provided for measuring weight parameters of fluid poured from a barrel-shaped container. The metering manual bucket-turning scale includes:

[0007] A frame device is provided with a lifting mechanism;

[0008] A cantilever frame slidably connected to the frame device, the lifting mechanism is drivingly connected to the cantilever frame, and the cantilever frame includes a first support arm and a second support arm;

[0009] a metering assembly, comprising a weighing instrument, a first sensor mounted on the first arm, and a second sensor mounted on the second arm, wherein the first sensor and the second sensor are electrically connected to the weighing instrument respectively;

[0010] The barrel inverting device includes a first connecting arm, a second connecting arm, a flip drive assembly installed on the first connecting arm, and a barrel body fixing assembly connected to the flip drive assembly and the second connecting arm, wherein the first connecting arm is fixedly connected to the first sensor, and the second connecting arm is fixedly connected to the second sensor; wherein the flip drive assembly is used to drive the barrel body fixing assembly to flip relative to the cantilever frame.

[0011] In one embodiment, the barrel body fixing assembly includes a curved clamp frame, a first rotating shaft and a second rotating shaft respectively fixed to the two ends of the clamp frame, a mounting tube fixed to the clamp frame, a bottom support hook frame and a top buckle hook frame respectively movably connected to the two ends of the mounting tube, the first rotating shaft and the second rotating shaft are coaxially arranged, the first rotating shaft is connected to the flip drive assembly, the second rotating shaft is rotatably connected to the second connecting arm, and the bottom support hook frame and the top buckle hook frame respectively hook and lock the two ends of the barrel-shaped container.

[0012] In one embodiment, the clamp frame is bent toward one side of the cantilever frame, and on a symmetric midplane of the cantilever frame, a projection of the mounting tube intersects with a projection of the first sensor.

[0013] In one embodiment, a rotation angle of the mounting tube relative to the first arm is between 75 degrees and 270 degrees.

[0014] In one embodiment, the flip drive assembly includes a reduction mechanism, a first transmission shaft, a second transmission shaft and a clutch mechanism, wherein the first transmission shaft is connected to the reduction mechanism, and the clutch mechanism includes a transmission posture in which the first transmission shaft and the second transmission shaft are driven and connected; and the clutch mechanism includes a clutch posture in which the first transmission shaft and the second transmission shaft are separated, and the second transmission shaft is rotatably connected to the first arm.

[0015] In one embodiment, the clutch mechanism includes a transmission member and a movable member that are engaged with each other, the transmission member is connected to the first transmission shaft, and the movable member is connected to the second transmission shaft.

[0016] In one embodiment, the movable member and the transmission member are plug-fitted, and at least one mating plane is provided at the mutual plug-fitting position; or,

[0017] The movable member and the transmission member are configured to be complementary in toothed fit.

[0018] In one embodiment, the transmission member is configured as a first spline shaft provided at the end of the first transmission shaft, the movable member is slidably connected to the second transmission shaft, the movable member is provided with a transmission hole facing the first spline shaft, and the transmission hole is provided with a spline groove adapted to the first spline shaft.

[0019] In one embodiment, the end of the first support arm is fixedly connected to a first load-bearing block, the end of the first connecting arm is fixedly connected to a second load-bearing block, and the two ends of the first sensor are respectively connected to the first load-bearing block and the second load-bearing block.

[0020] In one embodiment, a height of the first sensor in the direction of gravity is smaller than a height of the first arm.

[0021] In the technical solution provided by the embodiments of the present invention, the first and second sensors are respectively mounted at the ends of the cantilever frame, close to the centerline of the barrel container secured by the barrel body fixing assembly. This can reduce variations in torque force and improve metering stability. The first and second sensors jointly support the barrel tipping device, enabling rapid correction of the metering parameters of the barrel tipping device while maintaining good structural strength. The lifting mechanism drives the cantilever frame up and down to accommodate the pouring of fluid from barrel containers of varying heights. The flip drive assembly stabilizes the barrel body fixing assembly at a suitable pouring angle.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0024] Figure 1 The figure is a schematic structural diagram of a manual bucket-dumping scale according to an exemplary embodiment.

[0025] Figure 2 The figure is a schematic top view of the structure of a manual bucket-dumping scale according to an exemplary embodiment.

[0026] Figure 3 It is a schematic diagram of a three-dimensional structure showing a metering assembly installed on a cantilever frame according to an exemplary embodiment.

[0027] Figure 4 It is a structural schematic diagram showing that a first sensor is installed on a cantilever frame according to an exemplary embodiment.

[0028] Figure 5 It is a partially enlarged structural schematic diagram of a bottom support hook frame positioning an oil drum according to an exemplary embodiment.

[0029] Figure 6 It is a partially enlarged structural schematic diagram of a top hook frame positioning oil drum according to an exemplary embodiment.

[0030] Figure 7 It is a partially enlarged structural schematic diagram of a plug-in clutch mechanism according to an exemplary embodiment.

[0031] Figure 8 It is a partially enlarged structural schematic diagram of another plug-in clutch mechanism according to an exemplary embodiment.

[0032] Figure 9 It is a partially enlarged structural schematic diagram of a sliding tooth-shaped engagement and clutch mechanism according to an exemplary embodiment.

[0033] Figure 10 It is a schematic diagram of the enlarged structure of the tooth matching cross section of a sliding tooth meshing clutch mechanism according to an exemplary embodiment.

[0034] Figure 11 It is a partially enlarged structural schematic diagram of a fixed tooth-shaped meshing clutch mechanism according to an exemplary embodiment.

[0035] Figure 12 It is a schematic diagram of the enlarged structure of the tooth-shaped matching cross section of a fixed tooth-shaped meshing clutch mechanism according to an exemplary embodiment.

[0036] In the figure, the frame device 10; the cantilever frame 20; the first support arm 21; the second support arm 22; the sliding crossbeam 23; the metering assembly 30; the first sensor 31; the second sensor 32; the weighing instrument 33; the bucket-turning device 40; the first connecting arm 41; the second connecting arm 42; the tilting drive assembly 43; the speed reduction mechanism 431; the clutch mechanism 432; the sliding sleeve 4321; the air-avoiding hole 43211; the first spline groove 43212; the connecting groove 43213; the third spline shaft 43214; the movable collar 4322; the connecting rod mechanism 4323; the fixed sleeve 4324; the second spline groove 43241; the clutch seat 4325; and the first clutch tooth 4325 1; sliding seat 4326; second clutch tooth 43261; second connecting seat 4327; driving tooth 43271; first connecting seat 4328; transmission tooth 43281; first transmission shaft 433; first spline shaft 4331; second transmission shaft 434; second spline shaft 4341; second load-bearing block 435; first load-bearing block 436; barrel body fixing assembly 44; clamping hoop 441; mounting tube 442; first rotating shaft 443; second rotating shaft 444; top buckle hook frame 445; positioning block 4451; top hook 4452; locking stud 4453; bottom support hook frame 446; sliding tube 4461; tension spring 4462; bottom hook 4463; oil barrel 50. Implementation Method

[0037] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0038] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0039] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0040] like Figures 1 to 3 As shown, the present invention provides a metering manual bucket-dumping scale for measuring weight parameters of fluid poured from a barrel-shaped container. Optionally, the barrel-shaped container is configured as a standard oil barrel 50.

[0041] The metering manual bucket-turning scale includes a frame device 10, a cantilever frame 20 slidably connected to the frame device 10, a metering assembly 30 connected to the cantilever frame 20, and a bucket-turning device 40 connected to the metering assembly 30. The frame device 10 is provided with a lifting mechanism, which is drivably connected to the cantilever frame 20. The lifting mechanism is configured to be hydraulically lifted, hingedly lifted, or electrically driven. Preferably, the lifting mechanism is configured as a hydraulic cylinder assembly. The cantilever frame 20 is manually driven to move up and down along the frame device 10, thereby enabling the barrel-turning device 40 to drive the fixed oil barrel 50 to move up and down.

[0042] The cantilever frame 20 includes a first arm 21 and a second arm 22, which are parallel to each other and extend beyond the frame assembly 10. The cantilever frame 20 is equipped with a sliding beam 23, which is slidably connected to the frame assembly 10. The sliding beam 23, the first arm 21, and the second arm 22 form a substantially U-shaped structure, allowing the oil drum 50 to rotate within its range of motion.

[0043] The metering assembly 30 includes a weighing meter 33, a first sensor 31 mounted on the first arm 21, and a second sensor 32 mounted on the second arm 22. The first sensor 31 and the second sensor 32 are each electrically connected to the weighing meter 33. Optionally, the weighing meter 33 is mounted on the boom 20 and moves with the boom 20, achieving synchronous movement and minimizing wiring. Alternatively, the weighing meter 33 can be mounted on the vehicle frame 10 to display the weighed quantity in a fixed position, allowing the operator to easily monitor changes in the data.

[0044] It is worth mentioning that in this application, the first sensor 31 and the second sensor 32 use end-connected weighing sensors. When explosive gases exist or may exist in the environment where the bucket scale is used, the first sensor 31 and the second sensor 32 use explosion-proof weighing sensors, and the weighing instrument 33 uses an explosion-proof electronic weighing instrument to meet explosion-proof requirements, improve safety of use and expand the scope of application.

[0045] The first sensor 31 extends from the first arm 21 toward the bucket tipping device 40. The second sensor 32 extends from the second arm 22 toward the bucket tipping device 40. The first and second sensors 31 and 32 are arranged in parallel. Preferably, the projections of the first and second sensors 31 and 32 on the midplane of symmetry of the bucket tipping device 40 overlap, and the projections of the first and second arms 21 and 22 on the midplane of symmetry of the bucket tipping device 40 overlap. For ease of description, the following description will refer to the first sensor 31; the second sensor 32 has the same function as the first sensor 31.

[0046] The barrel inverting device 40 includes a first connecting arm 41, a second connecting arm 42, a flip drive assembly 43 mounted on the first connecting arm 41, and a barrel body fixing assembly 44 connected to the flip drive assembly 43 and the second connecting arm 42. The first connecting arm 41 is fixedly connected to the first sensor 31, and the second connecting arm 42 is fixedly connected to the second sensor 32. The first connecting arm 41 and the first sensor 31 are connected to form an extended arm structure, and the second connecting arm 42 and the second sensor 32 are connected to form an extended arm structure. The first sensor 31 and the second sensor 32 are respectively mounted at the ends of the cantilever frame 20 and close to the centerline position of the barrel-shaped container fixed by the barrel body fixing assembly 44, which can reduce the difference in torque force and improve the stability of measurement.

[0047] The flip drive assembly 43 is mounted at the end of the first connecting arm 41. One end of the barrel fixing assembly 44 is fixed to the power output portion of the flip drive assembly 43, and the other end is rotatably connected to the second connecting arm 42. The flip drive assembly 43 is used to drive the barrel fixing assembly 44 to flip relative to the cantilever frame 20. The barrel fixing assembly 44 protrudes toward the sliding beam 23. Optionally, the protrusion of the barrel fixing assembly 44 from the flip drive assembly 43 toward the sliding beam 23 is greater than the size of the first connecting arm 41. Furthermore, the protrusion of the barrel fixing assembly 44 from the flip drive assembly 43 toward the sliding beam 23 is greater than or equal to the sum of the sizes of the first connecting arm 41 and the first sensor 31.

[0048] The barrel fixing assembly 44 protrudes toward the cantilever frame 20, shifting the center of gravity of the oil barrel 50 toward the first sensor 31. This reduces the torque applied to the first sensor 31 when supporting the oil barrel 50, improving metering accuracy and stability. The first and second sensors 31, 32 jointly support the barrel tipping device 40, enabling rapid calibration of metering parameters while maintaining structural strength. The lifting mechanism drives the cantilever frame 20 up and down to accommodate fluids from barrel-shaped containers of varying heights. The tilting drive assembly 43 stabilizes the barrel fixing assembly 44 at a suitable angle for tipping.

[0049] The first sensor 31 and the second sensor 32 are sensors of the same type, and the fixing of the first sensor 31 is taken as an example for description.

[0050] A first load-bearing block 436 is fixedly connected to the end of the first arm 21, and a second load-bearing block 435 is fixedly connected to the end of the first connecting arm 41. The first and second load-bearing blocks 436, 435 are respectively connected at both ends of the first sensor 31. The first and second load-bearing blocks 436, 435 are arranged parallel to each other, with the cross-section of the first load-bearing block 436 being larger than that of the first arm 21. A through-hole is provided in the portion of the first load-bearing block 436 that extends beyond the first arm 21. A fastener passes through the through-hole and locks onto the first sensor 31, securing the first sensor 31 to the first arm 21. Based on the same principle, the first sensor 31 is fixedly connected to the second load-bearing block 435, facilitating assembly.

[0051] Preferably, the height of the first sensor 31 in the direction of gravity is less than the height of the first arm 21, and the first sensor 31 is located below the first arm 21. The gravity of the barrel fixing assembly 44 and the oil barrel 50 is transmitted to the first sensor 31 through the first connecting arm 41. The first sensor 31 is located below the first arm 21 and closer to the center of gravity of the oil barrel 50, so that it is less affected by torque.

[0052] The barrel fixing assembly 44 is used to fix the upper and lower edges of the oil barrel 50 by hooking, thereby being able to drive the oil barrel 50 to flip and tip over. In one embodiment, the barrel fixing assembly 44 includes a curved clamping frame 441, which is a concave curved member. The concave area of ​​the clamping frame 441 can accommodate the barrel wall of the oil barrel 50. Preferably, the concave size of the clamping frame 441 exceeds the connection position of the first sensor 31 and the first support arm 21, so as to shift the center of gravity to one side of the frame device 10, thereby maintaining a stable center of gravity deflection. Optionally, the clamping frame 441 is configured as a "C"-shaped curved pipe or curved plate structure.

[0053] like Figure 1 and Figure 5 As shown, the barrel fixing assembly 44 includes a mounting tube 442 fixed to a clamping frame 441. The mounting tube 442 is located on the outer wall of the clamping frame 441, and the axis of the mounting tube 442 is parallel to or slightly inclined to the centerline of the clamping frame 441. The mounting tube 442 is a tubular structure, and a top hook frame 445 is mounted on one end of the mounting tube 442, and a bottom support hook frame 446 is mounted on the other end of the mounting tube 442. The bottom support hook frame 446 and the top hook frame 445 are respectively used to hook and lock the two ends of the barrel-shaped container.

[0054] Optionally, the bottom hook frame 446 includes a sliding tube 4461 that is slidably connected to the mounting tube 442, a bottom hook 4463 that is fixed to the sliding tube 4461 and extends beyond the mounting tube 442, and a tension spring 4462 mounted within the mounting tube 442. The tension spring 4462 is connected to the sliding tube 4461 to force the bottom hook 4463 into contact with the end surface of the mounting tube 442. The bottom hook 4463 slides with the sliding tube 4461 to accommodate oil drums 50 of varying heights. The bottom hook 4463 hooks onto the bottom edge of the oil drum 50, which then abuts the mounting tube 442. Optionally, the end of the bottom hook 4463 has an enlarged cross-sectional area and is provided with an anti-slip surface having a plurality of anti-slip ribs spaced apart on the surface.

[0055] like Figure 1 and Figure 6 As shown, the top hook frame 445 optionally includes a positioning block 4451 fixed to the mounting tube 442, a locking stud 4453 screwed to the positioning block 4451, and a top hook 4452 rotatably mounted to the locking stud 4453. The top hook 4452 and the positioning block 4451 are combined to clamp and secure the ribs on the top of the oil drum 50. The ribs on the top and bottom of the oil drum 50 are both clamped and secured, allowing the oil drum 50 to be flipped and the fluid to be poured. The end of the positioning block 4451 is provided with an anti-slip surface with multiple anti-slip ribs spaced apart on the surface.

[0056] Optionally, the top hook frame 445 includes a positioning seat fixed to the mounting tube 442 and a hook connecting rod hingedly connected to the positioning seat, the positioning seat abuts against the outer wall of the oil barrel 50, and the hook connecting rod hooks and locks the barrel edge rib on the top of the oil barrel 50 to cooperate with the positioning seat to clamp the oil tank.

[0057] Preferably, the mounting tube 442 is positioned parallel to gravity as the initial position for the oil drum 50 to flip. The height of the mounting tube 442 and the clamping frame 441 in the direction of gravity is substantially the same as the height of the first sensor 31 in the direction of gravity, thereby maintaining consistency in metering data. Of course, the clamping frame 441 can also flexibly adjust the flipping position based on the height of the oil drum 50. Optionally, the clamping frame 441 is bent toward the cantilever frame 20, so that the projection of the mounting tube 442 intersects the projection of the first sensor 31 on the symmetrical midplane of the cantilever frame 20.

[0058] like Figure 1 and Figure 2 As shown, a first rotating shaft 443 and a second rotating shaft 444 are respectively fixed at both ends of the clamp frame 441. The first rotating shaft 443 and the second rotating shaft 444 are coaxially arranged. The first rotating shaft 443 is connected to the flip drive assembly 43, and the second rotating shaft 444 is rotatably connected to the second connecting arm 42. The flip drive assembly 43 drives the first rotating shaft 443 and the second rotating shaft 444 coaxially, causing the clamp frame 441 to flip around the centerline of the first rotating shaft 443. Preferably, the centerline of the first rotating shaft 443 intersects with the centerline of the oil drum 50 or the deviation value is small, so that the center of gravity position of the oil drum 50 is basically stable relative to the detection position of the first sensor 31, and the test performance is good. Furthermore, the clamp frame 441 is located in the middle of the mounting tube 442.

[0059] In an alternative embodiment, the mounting tube 442 can rotate at an angle of 75 to 270 degrees relative to the first arm 21. The tilting angle of the mounting tube 442 determines the tilting angle of the oil drum 50. When the mounting tube 442 is between 75 and 120 degrees, the tilting device 40 can flexibly lift and transport the oil drum 50. When the mounting tube 442 is between 120 and 270 degrees, the tilting device 40 controls the tilting angle of the oil drum 50 to facilitate fluid outflow.

[0060] The flip drive assembly 43 is a power mechanism for driving the barrel fixing assembly 44 to flip. Optionally, the flip drive assembly 43 is configured as a drive motor to drive the barrel fixing assembly 44 to flip. Optionally, the flip drive assembly 43 is a manual drive mechanism to manually flip the barrel fixing assembly 44.

[0061] The tilt drive assembly 43 includes a speed reduction mechanism 431, a first transmission shaft 433, a second transmission shaft 434, and a clutch mechanism 432. The first transmission shaft 433 is connected to the speed reduction mechanism 431. The clutch mechanism 432 includes a driving position in which the first and second transmission shafts 433 and 434 are drivingly connected; and a clutch mechanism 432 includes a clutch position in which the first and second transmission shafts 433 and 434 are separated. The second transmission shaft 434 is rotatably connected to the first arm 21. When the speed reduction mechanism 431 is in the clutch position, the metering assembly 30 can accurately measure the remaining fluid volume in the oil barrel 50 and the mass of the poured fluid. The calculations are accurate and unaffected by the weight transmitted by the second transmission shaft 434 and the second transmission shaft 434. It is worth noting that in the metering state, if the clutch mechanism 432 is not fully disengaged, a deflecting force will inevitably act on the first transmission shaft 433. This deflecting force acts on the first sensor 31, causing deviations in the measurement value of the first sensor 31, thereby affecting the accuracy of the measurement. Preferably, the second transmission shaft 434 is equipped with a handwheel for rotating the second transmission shaft 434 .

[0062] like Figure 2 、 Figures 7 to 12 As shown, in one embodiment, the clutch mechanism 432 includes a transmission member and a movable member that engage with each other. The transmission member is connected to a first transmission shaft 433, and the movable member is connected to a second transmission shaft 434. The rotating member and the movable member move toward each other, thereby forming a mating engagement structure, and the engaging portions of the two members can cooperate with each other to transmit power. The rotating member and the movable member move away from each other, thereby forming a separate and independent structure.

[0063] In an optional embodiment, the movable member and the transmission member are plug-fitted, and at least one mating plane is provided at the mutually plug-fitting portion. The movable member and the transmission member are complementary plug-fitting structures, achieving power transmission between the two and also enabling clutching and separation. Optionally, the transmission member is a columnar structure, the outer peripheral wall of the transmission member is provided with a planar mating plane, and the movable member is provided with a hole structure, the hole structure having a transmission surface provided on the hole wall, and the transmission surface is matched and fitted with the mating plane to form a plane for power transmission. Optionally, the transmission member is configured as a prism, a first spline shaft 4331, and other evenly distributed positioning surface structures.

[0064] Specifically, the transmission member is configured as a first spline shaft 4331 fixedly mounted on the end of the first transmission shaft 433. Optionally, the first spline shaft 4331 is fixedly connected to the first transmission shaft 433, such as by welding, bolting, plug-in fitting, etc. Preferably, the first spline shaft 4331 is a key structure directly processed from the first transmission shaft 433, and the two are an integrated structure with high structural strength. The movable member is a sliding transmission structure slidably connected to the second transmission shaft 434. In an optional embodiment, the movable member includes a sliding sleeve 4321 sleeved on the second transmission shaft 434, and the sliding sleeve 4321 is provided with a first spline groove 43212 and an air avoidance hole 43211. The second transmission shaft 434 is provided with a second spline shaft 4341, and the sliding sleeve 4321 is slidably connected to the second spline shaft 4341. In the transmission position, the sliding sleeve 4321 moves toward the first spline shaft 4331, allowing the first spline groove 43212 to simultaneously engage the first spline shaft 4331 and the second spline shaft 4341, forming a synchronous sliding fit. In the clutch position, the sliding sleeve 4321 slides toward the second spline shaft 4341, and the first spline shaft 4331 is located within the clearance hole 43211. This prevents the first spline shaft 4331 from disengaging from the sliding sleeve 4321 while maintaining the first spline shaft 4331 within the sliding sleeve 4321, achieving effective alignment. The inner diameter of the clearance hole 43211 is larger than the maximum rotational outer diameter of the first spline shaft 4331. In the clutch position, the first spline shaft 4331 is completely separated from the sliding sleeve 4321, preventing the second transmission shaft 434 from transmitting interfering forces to the second transmission shaft 434.

[0065] Optionally, the sliding sleeve 4321 is provided with a first spline groove 43212 and an escape hole 43211. A third spline shaft 43214 is disposed on the outer circumference of the sliding sleeve 4321. A fixed sleeve 4324 is secured to the end of the second transmission shaft 434. The fixed sleeve 4324 is provided with a second spline groove 43241. The third spline shaft 43214 cooperates with the second spline groove 43241. In the clutched position, the sliding sleeve 4321 slides toward the second spline groove 43241, and the first spline shaft 4331 is positioned within the escape hole 43211. This prevents the first spline shaft 4331 from disengaging from the sliding sleeve 4321 while maintaining its position within the sliding sleeve 4321, resulting in effective alignment. The inner diameter of the clearance hole 43211 is larger than the maximum rotational outer diameter of the first spline shaft 4331. In the clutched position, the first spline shaft 4331 is completely separated from the sliding sleeve 4321, preventing the second transmission shaft 434 from transmitting interference forces to the second transmission shaft 434. In the transmission position, the sliding sleeve 4321 moves toward the first spline shaft 4331, so that the first spline groove 43212 engages with the first spline shaft 4331, and the second spline shaft 4341 engages with the second spline groove 43241, thereby forming a synchronous sliding fit.

[0066] In another alternative embodiment, Figure 9 and Figure 10 As shown, the movable member and the transmission member are configured to have complementary tooth shapes. The transmission member is a clutch seat 4325 fixed to the first transmission shaft 433. The surface of the clutch seat 4325 is provided with a plurality of first clutch teeth 43251 protruding at intervals. The movable member is a sliding seat 4326 slidably connected to the second transmission shaft 434. The end of the sliding seat 4326 is provided with a plurality of second clutch teeth 43261 spaced apart. The first clutch teeth 43251 and the second clutch teeth 43261 are meshed and connected with each other. In the transmission posture, the sliding seat 4326 moves toward the clutch seat 4325, so that the first clutch teeth 43251 and the second clutch teeth 43261 are meshed and connected. In the transmission posture, the sliding seat 4326 moves toward the clutch seat 4325, so that the first clutch teeth 43251 and the second clutch teeth 43261 are meshed and connected.

[0067] To achieve linear sliding of movable parts such as the sliding seat 4326 and the sliding sleeve 4321, the user can directly drive the movable parts to slide, or the movable parts can be driven by a driving mechanism. Optionally, the outer periphery of the movable part is provided with an annular movable collar 4322 and a connecting rod mechanism 4323 connected to the movable collar 4322. The connecting rod mechanism 4323 is connected to the first support arm 21, and the movable collar 4322 is sleeved on the movable part. The outer peripheral wall of the movable part is provided with a connecting groove 43213, so that the movable part can rotate relative to the movable collar 4322 and can also move linearly back and forth under the drive of the movable collar 4322. Optionally, the connecting rod mechanism 4323 includes a driving rod hingedly connected to the first support arm 21 and an extension rod hingedly connected to the middle portion of the driving rod. The extension rod is hingedly connected to the movable collar 4322. The extension rod is driven by the rotation of the driving rod to push the movable collar 4322 to slide back and forth, thereby achieving the switching between the clutch posture and the transmission posture.

[0068] Preferably, first arm 21 is provided with a first stop and a second stop. The drive rod rotates and engages with the first stop, maintaining the extension rod pushing movable collar 4322 in a transmission position. The drive rod rotates in the opposite direction and engages with the second stop, maintaining the extension rod pushing movable collar 4322 in a clutched position. The fixed positions of the first and second stop ensure accurate positioning of movable collar 4322.

[0069] In another embodiment, if Figure 11 and Figure 12As shown, the clutch mechanism 432 includes a transmission member and a movable member that engage with each other. The transmission member is a first connecting seat 4728 fixedly connected to the first transmission shaft 433. The first connecting seat 4728 is provided with at least two protruding transmission teeth 43281. The central angle of the space between two adjacent transmission teeth 43281 is set to K. The movable member is a second connecting seat 4327 fixedly connected to the second transmission shaft 434. The second connecting seat 4327 is provided with at least two protruding driving teeth 43271. The central angle of the tooth width of the driving teeth 43271 is set to k, where 1.5≤K / k≤3. Specifically, the ratio K / k is set to 1.5, 1.8, 2, 2.5, 3, etc. The driving teeth 43271 are inserted into the space between the two transmission teeth 43281. When the second transmission shaft 434 rotates, the driving teeth 43271 rotate and push the transmission teeth 43281, thereby forming a transmission posture of the drive connection. After the oil drum 50 is rotated to the dumping position, the second transmission shaft 434 is rotated in the opposite direction to disengage the drive teeth 43271 from the transmission teeth 43281 and position the drive teeth 43281 between two adjacent transmission teeth 43281, thereby maintaining a clutched position and maintaining metering accuracy. Preferably, a positioning gear is mounted on the second transmission shaft 434, and a spring is mounted on the first support arm 21. The spring elastically abuts the positioning gear, thereby maintaining the accurate positioning of the second transmission shaft 434 and providing a user with an indication of the rotation angle of the second transmission shaft 434. A handwheel is mounted on the end of the second transmission shaft 434.

[0070] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0071] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A metering manual bucket-dumping scale, used to measure the weight parameters of fluid poured from a barrel-shaped container, characterized in that: The metering manual bucket scale includes: A frame device is provided with a lifting mechanism; A cantilever frame slidably connected to the frame device, the lifting mechanism is drivingly connected to the cantilever frame, and the cantilever frame includes a first support arm and a second support arm; A metering assembly, comprising a weighing meter, a first sensor mounted on the first arm, and a second sensor mounted on the second arm, wherein the first sensor and the second sensor are electrically connected to the weighing meter respectively; The barrel inverting device comprises a first connecting arm, a second connecting arm, a flip driving assembly installed on the first connecting arm, and a barrel body fixing assembly connected to the flip driving assembly and the second connecting arm, wherein the first connecting arm is fixedly connected to the first sensor, and the second connecting arm is fixedly connected to the second sensor; wherein the flip driving assembly is used to drive the barrel body fixing assembly to flip relative to the cantilever frame; The flip drive assembly includes a speed reduction mechanism, a first transmission shaft, a second transmission shaft and a clutch mechanism, wherein the first transmission shaft is connected to the speed reduction mechanism, and the clutch mechanism includes a transmission posture in which the first transmission shaft and the second transmission shaft are driven and connected; and the clutch mechanism includes a clutch posture in which the first transmission shaft and the second transmission shaft are separated, and the second transmission shaft is rotatably connected to the first support arm; The clutch mechanism comprises a transmission member and a movable member which are engaged with each other, the transmission member is connected to the first transmission shaft, and the movable member is connected to the second transmission shaft.

2. The metering manual bucket-turning scale according to claim 1 is characterized in that: The barrel body fixing assembly includes a curved clamp frame, a first rotating shaft and a second rotating shaft respectively fixed at two ends of the clamp frame, a mounting tube fixed to the clamp frame, a bottom support hook frame and a top buckle hook frame respectively movably connected to two ends of the mounting tube, the first rotating shaft and the second rotating shaft are coaxially arranged, the first rotating shaft is connected to the flip driving assembly, the second rotating shaft is rotatably connected to the second connecting arm, and the bottom support hook frame and the top buckle hook frame respectively hook and lock the two ends of the barrel-shaped container.

3. The metering manual bucket-turning scale according to claim 2 is characterized in that: The clamp frame is bent toward one side of the cantilever frame, and on the symmetric mid-plane of the cantilever frame, the projection of the mounting tube intersects with the projection of the first sensor.

4. The metering manual bucket-turning scale according to claim 2 is characterized in that: The rotation angle of the mounting tube relative to the first support arm is between 75 degrees and 270 degrees.

5. The metering manual bucket-turning scale according to claim 1 is characterized in that: The movable member is plug-fitted with the transmission member, and at least one mating plane is provided at the mutually plug-fitting position; or The movable member and the transmission member are configured to be complementary in tooth shape.

6. The metering manual bucket-turning scale according to claim 5 is characterized in that: The transmission member is configured as a first spline shaft arranged at the end of the first transmission shaft, the movable member is slidably connected to the second transmission shaft, the movable member is provided with a transmission hole facing the first spline shaft, and the transmission hole is provided with a spline groove adapted to the first spline shaft.

7. The metering manual bucket-turning scale according to claim 1 is characterized in that: The end of the first supporting arm is fixedly connected with a first load-bearing block, the end of the first connecting arm is fixedly connected with a second load-bearing block, and the two ends of the first sensor are respectively connected with the first load-bearing block and the second load-bearing block.

8. The metering manual bucket-turning scale according to claim 7 is characterized in that: The height of the first sensor in the gravity direction is smaller than the height of the first supporting arm.

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