Filling device

Abstract

The utility model relates to packing machinery technical field provides a kind of filling device, filling device includes seat, support rod, filling hopper and two clamping assemblies, one end of the support rod is connected with the seat;The filling hopper is located at the end of the support rod away from the seat;Two the clamping assemblies are spaced apart on the seat, and the clamping assembly is suitable for clamping the two sides of the bag to be filled.The utility model realizes the stable clamping and flexible positioning of the bag to be filled by the cooperation of seat, support rod, filling hopper and adjustable clamping assembly, solves the problems of low efficiency, easy leakage and inconvenient equipment adjustment in traditional manual filling, has simple structure, convenient operation, can stably clamp the bag to be filled, effectively prevents the leakage problem caused by bag opening dumping during filling process, significantly improves filling efficiency and reduces labor cost.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a filling device. Background Technology

[0002] Plastic film composite bags and paper bags are widely used in the daily chemical, food, and building waterproofing industries as the main packaging materials for liquid and powder products. In the building waterproofing industry, plastic film composite bags and valve bags are mainly used to package products such as leak-stopping agents, reinforcing agents, tile adhesives, and putty powder. When conducting product packaging verification in the laboratory, it is necessary to prepare samples to simulate actual packaging methods for testing. However, the existing manual filling methods have many problems: for valve bag filling, due to the small valve diameter, only small-mouth filling tools can be used, requiring repeated filling and unloading, which is extremely inefficient; for three-side seal and back-seal plastic film bags, due to the high fluidity of the material, the center of gravity is easily unbalanced during the filling process, causing the bag mouth to tip over and resulting in leakage. To avoid this, two people are often required to operate, one to hold the bag mouth open and the other to fill, which greatly increases labor and time costs. In addition, existing filling equipment generally suffers from unstable clamping and inconvenient adjustment, and cannot meet the filling needs of different packaging bag sizes, which seriously restricts the efficiency of laboratory sample preparation. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the related art. To this end, this utility model proposes a filling device that has a simple structure, is easy to operate, can stably clamp the bag to be filled, effectively prevents leakage caused by the bag opening tipping over during the filling process, significantly improves filling efficiency, and reduces labor costs.

[0004] The filling apparatus according to a first aspect of the present invention includes: seat body; A support rod, one end of which is connected to the base body; A filling funnel, wherein the filling funnel is located at the end of the support rod away from the base; Two clamping components are spaced apart on the base body, and the clamping components are adapted to clamp both sides of the bag to be filled.

[0005] The filling device according to the present invention, through the cooperation of the base, support rod, filling funnel and adjustable clamping components, achieves stable clamping and flexible positioning of the bag to be filled, solving the problems of low efficiency, easy leakage and inconvenient equipment adjustment in traditional manual filling. It has the advantages of simple structure, convenient operation, stable clamping of the bag to be filled, effective prevention of leakage caused by the bag opening tipping over during filling, significantly improving filling efficiency and reducing labor costs.

[0006] According to one embodiment of the present invention, the base is provided with a sliding groove, and the clamping assembly is adapted to slide along the sliding groove so that the two clamping assemblies are close to or far apart.

[0007] According to one embodiment of the present invention, the side wall of the base is provided with two fastening screws, each of the fastening screws corresponding to one of the clamping components, and the fastening screws are used to abut and limit the clamping components.

[0008] According to one embodiment of the present invention, the clamping assembly includes: A bracket is disposed on the base body; An extension rod, one end of which is connected to the bracket; A clip is located at the end of the extension rod away from the bracket.

[0009] According to one embodiment of the present invention, the extension rod is rotatably connected to the bracket.

[0010] According to one embodiment of the present invention, the support includes: Two vertical rods are spaced apart from each other on the base body; Two horizontal bars, each end of which is connected to one of the two vertical bars, and the two horizontal bars are spaced apart along the vertical bars; A fixed rod is provided, with its two ends connected to the two crossbars respectively, and the fixed rod is adapted to slide along the crossbars. One end of the extension rod is connected to the fixed rod.

[0011] According to one embodiment of the present invention, the extension rod is adapted to move along the fixed rod.

[0012] According to one embodiment of the present invention, the bracket includes at least two fixing rods, and each fixing rod is connected to an extension rod and a clamp.

[0013] According to one embodiment of the present invention, the support rod is adjustable in height; And / or, the support rod is provided with a placement platform.

[0014] According to one embodiment of the present invention, the bottom of the seat is provided with a caster assembly.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. 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 filling device provided in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the base and clamping assembly provided in this embodiment of the utility model.

[0019] Figure 3 This is a partial cross-sectional view of the clamping assembly provided in this embodiment of the utility model.

[0020] Figure label: 1. Base; 11. Slide groove; 12. Fastening screw; 13. Caster assembly; 131. Support frame; 132. Caster; 2. Support rod; 21. Placement platform; 3. Filling funnel; 4. Clamping assembly; 41. Bracket; 411. Vertical rod; 412. Horizontal rod; 413. Fixing rod; 42. Extension rod; 43. Clamp; 44. Fixing screw. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0024] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] In existing technologies, plastic film composite bags and paper bags are widely used as the main packaging materials for liquid and powder products in industries such as daily chemicals, food, and building waterproofing. During manual filling in the laboratory, material often spills out due to the bag opening tipping, or multiple people are needed to complete the filling operation. For example, valve bags have a small opening diameter, requiring repeated filling, which is inefficient; when filling three-side seal and back-seal plastic film bags, the fluidity of the material can easily cause imbalance, requiring additional personnel to help open the bag opening, limiting the sample preparation process.

[0027] Therefore, as Figure 1 As shown, this application proposes a filling device including a base 1, a support rod 2, a filling funnel 3, and two clamping assemblies 4. One end of the support rod 2 is connected to the base 1, and the other end is provided with the filling funnel 3; the two clamping assemblies 4 are spaced apart on the base 1 and are used to clamp the two sides of the bag to be filled.

[0028] The base 1 refers to the foundation structure that supports the support rod 2 and the clamping assembly 4. It can be implemented using a metal frame or an injection-molded platform, providing rigid support for the entire device. The support rod 2 is the vertical extension connecting the base 1 and the filling funnel 3. It can be implemented using an adjustable-height telescopic rod, used to position the filling funnel 3 directly above the bag opening. The filling funnel 3 is a conical container used to guide material into the packaging bag. It can be made of stainless steel or plastic, with its bottom opening aligned with the bag opening to form a continuous filling path. The clamping assembly 4 refers to the fixing mechanism symmetrically distributed on both sides of the base 1. It can be implemented using spring clips or adjustable clamps, maintaining the bag's vertical position by applying symmetrical clamping forces.

[0029] Specifically, the base 1 serves as the foundation platform, with the support rod 2 extending vertically to form the positioning structure for the filling channel. The filling funnel 3 is fixed to the top of the support rod 2, and its outlet position is on the same vertical axis as the bag opening fixed by the clamping assembly 4. The two clamping assemblies 4 clamp the two sides of the packaging bag respectively, forming symmetrical force points. When material is injected through the filling funnel 3, the clamping assembly 4 counteracts the lateral force generated by the material flow in the bag, preventing the bag opening from tilting. The vertical layout of the support rod 2 ensures that the filling path coincides with the center line of the bag, further reducing the risk of center of gravity shift.

[0030] Through the above technical solutions, this application ensures that the packaging bag remains vertically stable during the filling process, preventing material leakage due to imbalance of the center of gravity. The symmetrical clamping structure replaces manual bag-holding, allowing a single person to independently complete the filling operation, reducing manpower requirements. The spatial coordination between the filling funnel 3 and the clamping component 4 ensures precise material injection into the bag opening, reducing the frequency of repeated adjustments and improving sample preparation efficiency.

[0031] Please refer to the reference. Figure 1 and Figure 2 This application further proposes that the base 1 is provided with a slide groove 11, and the clamping component 4 is adapted to slide along the slide groove 11 so that the two clamping components 4 are close to or far apart.

[0032] The groove 11 refers to a linear guide structure formed on the surface of the base 1, which can be implemented in the form of a groove or a convex rail, and is used to constrain the movement trajectory of the clamping component 4. The sliding of the clamping component 4 along the groove 11 means that the slider or roller set at the bottom of the clamping component 4 is embedded in the groove 11, and translational movement is achieved by external force.

[0033] Specifically, the linear extension direction of the slide 11 is consistent with the moving direction of the clamping assembly 4. When it is necessary to adjust the clamping distance, the operator can push the clamping assembly 4 to slide along the slide 11. For example, when the width of the bag to be filled is large, the two clamping assemblies 4 can move back to back along the slide 11 to widen the distance; when the bag is narrow, the clamping assemblies 4 can move towards each other to narrow the distance. The guiding function of the slide 11 ensures that the clamping assemblies 4 remain parallel and aligned during movement, avoiding uneven distribution of clamping force due to offset. After the clamping assembly 4 moves to the target position, it is kept fixed by friction or a locking mechanism.

[0034] This application further proposes that the side wall of the base 1 is provided with two fastening screws 12, each fastening screw 12 corresponding to a clamping component 4, and the fastening screw 12 is used to abut against the limiting clamping component 4.

[0035] The fastening screw 12 refers to a threaded metal rod, which can be a standard hexagonal head bolt with a nut, generating axial pressure through tightening. This feature utilizes the self-locking property of the threaded pair to create a continuous clamping force, achieving rigid fixation after the clamping assembly 4 has completed its position adjustment. The clamping assembly 4 is a combination structure comprising a bracket 41, an extension rod 42, and a clamp 43, which can be made of aluminum alloy profiles and hinged components, achieving linear displacement through the sliding groove 11. This feature, with its sliding design, meets the clamping requirements of packaging bags of different sizes, forming an adjustable clamping system in conjunction with the fastening screw 12.

[0036] Specifically, when the clamping assembly 4 moves along the slide 11 to the target position, the operator tightens the corresponding fastening screw 12. The end of the screw makes surface contact with the bracket 41 of the clamping assembly 4, and the axial thrust generated by the rotation of the thread presses the bracket 41 against the side wall of the slide 11. Due to the self-locking angle characteristic of the threaded pair, the applied pressure will not be attenuated by vibration or external force, thereby eliminating the risk of displacement caused by material impact during clamping. The arrangement of each clamping assembly 4 having an independent fastening screw 12 allows the two clamping assemblies 4 to be adjusted and fixed separately, avoiding positioning errors caused by linkage adjustment.

[0037] Through the above technical solution, this application effectively prevents the bag from shifting or loosening due to external forces during the filling process, ensuring that the packaging bag maintains a stable posture throughout the filling process. The independent adjustment function of the clamping component 4 allows the device to adapt to packaging bags of different widths, while the threaded fastening structure is easy to operate and has low maintenance costs, significantly improving sample preparation efficiency and the accuracy of experimental data.

[0038] like Figure 2As shown, this application further proposes a clamping assembly 4 including a bracket 41, an extension rod 42, and a clamp 43. The bracket 41 is disposed on the base 1, one end of the extension rod 42 is connected to the bracket 41, and the clamp 43 is disposed on the end of the extension rod 42 away from the bracket 41.

[0039] The bracket 41 is a support structure fixed to the base 1. It can be made of metal or plastic and is fixed to the base 1 by bolts or welding, providing a stable support base for the extension rod 42. The extension rod 42 is a rod-shaped component connecting the bracket 41 and the clip 43. It can be an adjustable-length telescopic rod or a corrugated rod structure, allowing for flexible adjustment of the clip 43's position through rod extension. The clip 43 is the end-acting component used to clamp the bag opening. It can be a spring clip, pneumatic clip, or manual clamping mechanism, fixing the two edges of the bag opening through clamping force.

[0040] Specifically, the bracket 41 is fixed to the base 1 to form a rigid support. One end of the extension rod 42 is connected to the bracket 41, and the other end extends to the opening area of ​​the bag to be filled. The clamp 43 is installed at the end of the extension rod 42. During the filling process, the extension rod 42 is adjusted in length to position the clamp 43 on both sides of the bag opening. The clamp 43 clamps the edge of the bag opening to form a fixed support. Through the combined structure of the bracket 41, extension rod 42, and clamp 43, the bag opening is mechanically held upright during filling without the need for manual support. The length adjustment capability of the extension rod 42 allows the clamping position to adapt to packaging bags of different sizes, and the clamping force of the clamp 43 ensures that the bag opening does not shift or tip over during the filling process.

[0041] Through the above technical solution, this application achieves automatic fixing of the bag opening during the filling process, effectively preventing bag tipping or material leakage caused by imbalance of the center of gravity. The clamping component 4 replaces manual support with a mechanical structure, allowing operators to focus on the filling operation and significantly improving filling efficiency. The length adjustment function of the extension rod 42 allows the device to adapt to packaging bags of different sizes, expanding its application range.

[0042] This application further proposes a rotatable connection between the extension rod 42 and the bracket 41.

[0043] The rotating connection refers to the rotatable mechanical structure between the extension rod 42 and the bracket 41, which can be implemented using a hinge or pivot structure, allowing the extension rod 42 to be adjusted in angle around the connection point. This structure expands the adjustment range of the clamping assembly 4 through rotational freedom, thereby adapting to the adjustment needs of different bag postures.

[0044] Specifically, during the filling process, when the bag tilts due to material flow, the extension rod 42 can rotate around the bracket 41 to adjust the angle of the clamp 43, keeping the bag opening stable. For example, the clamp 43 is connected to the bracket 41 via a pivot, allowing the operator to manually rotate the extension rod 42 to the target angle and then fix it, or to allow the extension rod 42 to adaptively fine-tune with changes in the bag's posture during filling. Thus, multi-angle positioning can be achieved without disassembling or reinstalling the clamping assembly 4.

[0045] Please refer to the reference. Figure 2 and Figure 3 This application further proposes that the bracket 41 includes two vertical rods 411 spaced apart on the base 1, two horizontal rods 412 with their ends connected to the two vertical rods 411 and spaced apart along the vertical rods 411, a fixed rod 413 with its ends connected to the two horizontal rods 412 and adapted to slide along the horizontal rods 412, and one end of the extension rod 42 connected to the fixed rod 413.

[0046] The vertical rod 411 refers to the column structure installed perpendicular to the base 1, which can be made by welding metal profiles and is used to construct the vertical support frame of the bracket 41. The horizontal rod 412 refers to the rod that horizontally connects the two vertical rods 411 and is used to form a sliding track for adjusting the clamping position. The fixed rod 413 refers to the transverse component that is slidably connected to the horizontal rod 412 at both ends, which can be made by opening sliding holes, and is used to adjust the horizontal position of the clamping point within the length of the horizontal rod 412.

[0047] Specifically, two vertical rods 411 form a stable vertical support structure on both sides of the base 1, and two horizontal rods 412 form a double-layer horizontal frame at different heights of the vertical rods 411. A fixed rod 413 is slidably connected to the upper and lower horizontal rods 412 via sliding holes; during operation, its horizontal coordinates on the support 41 can be changed by moving it axially along the horizontal rod 412. An extension rod 42 is hinged to the movable fixed rod 413; when the position of the fixed rod 413 is adjusted, the extension rod 42 causes the clamp 43 to move synchronously. This structure allows for continuous adjustment of the lateral spacing of the clamping points within the effective length of the horizontal rods 412, and the clamping assembly 4 can be adapted to packaging bags of different widths by moving the fixed rod 413.

[0048] This application further proposes a structure in which the extension rod 42 can move along the fixed rod 413.

[0049] Specifically, one end of the extension rod 42 is fitted onto the fixed rod 413 in a sliding fit. During operation, the extension rod 42 is manually pushed to move along the extension direction of the fixed rod 413. Specifically, the extension rod 42 includes a slip ring and a rod body. The slip ring is slidably fitted onto the fixed rod 413, and the rod body is threadedly connected to the slip ring. When the slip ring moves along the fixed rod 413 to a designated position, the rod body can be screwed to make one end of the rod body abut against the outer wall of the fixed rod 413, thereby fixing the extension rod 42 and preventing it from moving further. In other words, when the height of the bag to be filled changes, the sliding of the extension rod 42 can drive the clamp 43 to adjust to the corresponding position, ensuring that the clamping points are symmetrically distributed on both sides of the bag opening.

[0050] Through the above technical solution, this application solves the problem of the inflexible adjustment of the clamping position, ensures that the bag remains upright during the filling process, avoids material leakage or manual operation, and improves the compatibility of the device with packaging bags of different sizes.

[0051] This application further proposes that the bracket 41 includes at least two fixing rods 413, and each fixing rod 413 is connected to an extension rod 42 and a clip 43.

[0052] Specifically, the two fixing rods 413 slide independently along the crossbar 412, forming two detachable clamping units. When multiple positions of the bag need to be secured simultaneously, the operator can move the two fixing rods 413 to different positions, so that the corresponding clamps 43 clamp the edges of the bag. For a single bag, the two fixing rods 413 can be symmetrically distributed on both sides of the bag, and the vertical height of the clamps 43 can be adjusted by extending the rod 42 to form a two-point clamp on one side to prevent the bag from tipping over. The sliding engagement between the fixing rods 413 and the crossbar 412 allows the clamping distance to be adjusted according to the width of the bag. For example, when dealing with wide bags, the two fixing rods 413 can be moved outward to expand the clamping range.

[0053] like Figure 1 As shown, this application further proposes that the support rod 2 can be raised and lowered, and optionally, the support rod 2 is provided with a placement platform 21.

[0054] The support rod 2 is height-adjustable, meaning its height can be adjusted vertically. This can be achieved using a threaded sleeve structure or a hydraulic lifting mechanism, where the support rod 2 is vertically displaced by rotating the sleeve or controlling the hydraulic rod. The placement platform 21 is a load-bearing structure fixed to the top of the support rod 2, which can be a flat plate or mesh tray structure, used for temporarily placing filling tools or materials.

[0055] Specifically, the height-adjustable support rod 2 allows the height of the filling funnel 3 to be adaptively adjusted according to the bag opening position. When filling packaging bags of different sizes, adjusting the height of the support rod 2 aligns the funnel outlet with the bag opening, preventing filling offset or material spillage due to height mismatch. The placement platform 21 provides a stable bearing surface and can temporarily place auxiliary tools or materials to be replenished during the filling process, reducing bag shaking caused by frequent tool handling by the operator.

[0056] In some specific embodiments, the support rod 2 may be equipped with a lifting rod with scale markings to facilitate quick positioning of the required height; the placement platform 21 may be designed as a detachable structure and fixed to the support rod 2 by buckles or bolts.

[0057] This application further proposes to provide a movable wheel assembly 13 at the bottom of the seat 1.

[0058] The movable wheel assembly 13 refers to a rolling mechanism installed at the bottom of the base 1 to achieve overall displacement of the device. Specifically, it can be implemented using universal wheels with locking function, whose rolling direction is adjustable and which have the ability to be fixed in a static state. The movable wheel assembly 13 enables the filling device to be movable, and by replacing the static friction of the traditional fixed structure with rolling friction, it reduces the force required to adjust the position of the device.

[0059] For example, the caster assembly 13 includes a support frame 131 and multiple casters 132. The support frame includes multiple radially arranged support legs, each with a caster 132 at its bottom. Thus, the seat 1 can be placed on the multiple support legs, while one end of the support rod 2 can be supported on the support frame 131. The entire support frame 131 can be moved via the casters 132, facilitating the transfer of the device. The connection method between the seat 1 and the support legs can be adhesive, welding, or bolting, etc., and is not limited here.

[0060] Specifically, the moving wheel assembly 13 is rigidly connected to the bottom of the base 1. During filling operations, the locking function keeps the base 1 stable, preventing displacement during the process. When it is necessary to move the workstation, the locking is released and the base 1 is pushed to move the entire device. This structure is suitable for multi-workstation collaborative operation scenarios in laboratory environments. Operators can move the device directly to the target location according to the material storage location or filling area requirements, without repeatedly moving the bags to be filled or adjusting the layout of material containers. The device maintains its complete structural form during the movement, avoiding operational interruptions caused by disassembly and reassembly.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A filling device, characterized in that, include: seat body; A support rod, one end of which is connected to the base body; A filling funnel, wherein the filling funnel is located at the end of the support rod away from the base; Two clamping components are spaced apart on the base body, and the clamping components are adapted to clamp both sides of the bag to be filled.

2. The filling apparatus according to claim 1, characterized in that, The base is provided with a sliding groove, and the clamping assembly is adapted to slide along the sliding groove so that the two clamping assemblies are close to or far apart.

3. The filling apparatus according to claim 2, characterized in that, The side wall of the base is provided with two fastening screws, each of which corresponds to one of the clamping components. The fastening screws are used to abut and limit the clamping components.

4. The filling apparatus according to claim 1, characterized in that, The clamping assembly includes: A bracket is disposed on the base body; An extension rod, one end of which is connected to the bracket; A clip is located at the end of the extension rod away from the bracket.

5. The filling apparatus according to claim 4, characterized in that, The extension rod is rotatably connected to the bracket.

6. The filling apparatus according to claim 4, characterized in that, The support includes: Two vertical rods are spaced apart from each other on the base body; Two horizontal bars, each end of which is connected to one of the two vertical bars, and the two horizontal bars are spaced apart along the vertical bars; A fixed rod is provided, with its two ends connected to the two crossbars respectively, and the fixed rod is adapted to slide along the crossbars. One end of the extension rod is connected to the fixed rod.

7. The filling apparatus according to claim 6, characterized in that, The extension rod is adapted to move along the fixed rod.

8. The filling apparatus according to claim 6, characterized in that, The bracket includes at least two of the fixed rods, and each of the fixed rods is connected to an extension rod and a clamp.

9. The filling apparatus according to any one of claims 1 to 7, characterized in that, The support rod can be raised and lowered; And / or, the support rod is provided with a placement platform.

10. The filling apparatus according to any one of claims 1 to 7, characterized in that, The bottom of the seat is equipped with a caster assembly.

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