Concrete protection paste canning machine

Abstract

The utility model relates to a kind of concrete protective paste body canning machine, including support platform, first connecting piece is equipped on the support platform, the first connecting piece side near top position is equipped with the second connecting piece perpendicular to the first connecting piece;Expansion mechanism, the expansion mechanism is installed in the end portion of the second connecting piece away from the first connecting piece, output end of the expansion mechanism is installed with discharge pipe, the top of the discharge pipe is communicated with feed pipe, and one end of the feed pipe away from the discharge pipe is connected with external pump body;Protective assembly, the protective assembly includes the fixed ring on the outer surface of the discharge pipe;In the utility model, by setting fixed ring and control rod, cooperate with protection plate, so that every time before barrel is needed to be replaced, control rod can be first grabbed and rotated, effectively reduce the waste of paste and the pollution to site.

Description

Technical Field

[0001] This utility model relates to the field of filling machine technology, specifically a concrete protective paste filling machine. Background Technology

[0002] Silane paste is a paste-like silane impregnation material suitable for protecting new and existing concrete bridges, harbor terminals, and cross-sea bridges against chloride and freeze-thaw environments. It inhibits steel reinforcement corrosion and concrete corrosion. It has a milky white paste appearance, with an active ingredient content of ≥40% and a viscosity of ≥4000 mPa·s. By penetrating concrete to a depth of 3-4 mm, it forms a network of organosilicon resin layers, reducing water absorption by over 90%, blocking chloride ion corrosion, and treating micro-cracks as small as 0.2 mm.

[0003] After the existing concrete protective paste is produced, it needs to be filled into barrels by a filling machine for storage in order to facilitate subsequent transportation and sales. However, in actual operation, it has been found that when switching to the next barrel after each barrel is filled, residual paste easily sticks to the discharge pipe of the filling machine. This causes the paste to drip from the discharge pipe onto the transport mechanism or the ground when changing barrels, resulting in waste of paste and pollution of the work site. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a concrete protective paste filling machine, which solves the technical problem that existing concrete protective paste filling machines lack a protective structure at the discharge pipe opening during drum changing, making it easy for residual paste to drip, resulting in paste waste and pollution of the work site.

[0005] This utility model discloses a concrete protective paste filling machine, comprising: a support platform, on which a first connector is provided, and a second connector perpendicular to the first connector is provided on one side of the first connector near its top; a telescopic mechanism, which is installed at the end of the second connector away from the first connector, and a discharge pipe is installed at the output end of the telescopic mechanism, with a feed pipe connected to the top of the discharge pipe, and the end of the feed pipe away from the discharge pipe is connected to an external pump body.

[0006] The protective assembly includes a fixing ring disposed on the outer surface of the discharge pipe, a control rod rotatably connected to the fixing ring, and a protective plate disposed at the bottom end of the control rod. The protective plate is located at the discharge pipe opening and is used to control the opening and closing of the discharge pipe opening.

[0007] As a further improvement of this utility model, the fixing ring is sleeved on the outer surface of the discharge pipe near the bottom opening, and one side of the fixing ring is connected and fixed to the outer peripheral wall of the discharge pipe by a screw.

[0008] As a further improvement of this utility model, the fixing ring has a through hole in the vertical direction on the side facing away from the screw, and the control rod has an L-shaped structure with one end passing through the through hole.

[0009] As a further improvement of this utility model, the control lever includes an open position and a closed position. When the control lever is in the open position, the protective plate moves away from the discharge port. When the control lever is in the closed position, the protective plate blocks the discharge port.

[0010] As a further improvement of this utility model, the protective plate is designed with an elliptical structure and its area is larger than that of the discharge port. When the protective plate is closed, its upper surface is in contact with the bottom surface of the discharge port.

[0011] As a further improvement of this utility model, the output end of the telescopic mechanism is fixedly connected to an installation plate, a limit cylinder is fixedly connected to the installation plate, the inner cavity of the limit cylinder penetrates the installation plate, and the discharge pipe is movably inserted into the limit cylinder.

[0012] As a further improvement of this utility model, a limiting ring is fixedly connected to the outer surface of the discharge pipe near the top end. The discharge pipe is limited by the limiting ring and the limiting cylinder. A limiting insert is movably inserted into one side of the mounting plate. The limiting insert passes through the mounting plate and abuts against one side of the discharge pipe.

[0013] As a further improvement of this utility model, the first connecting member includes a support base fixed to the support platform and a support column fixed to the support base.

[0014] As a further improvement of this utility model, the second connecting member includes a first connecting plate and a second connecting plate, one side of the first connecting plate is hinged to one side of the support column, and the second connecting plate is hinged to the other side of the first connecting plate.

[0015] As a further improvement of this utility model, a transport seat is placed in front of the support platform, and multiple rollers are rotatably connected to the transport seat in a horizontal direction. Storage buckets for loading paste are placed on the multiple rollers, and a control panel for controlling the filling machine switch is installed on the support platform.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In this invention, a fixed ring and control rod, along with a protective plate, allow the control rod to be rotated before each bucket change to adjust the protective plate to the closed position. This seals the opening at the bottom of the discharge pipe, preventing residual paste from dripping during bucket changes. After the bucket change is complete, the protective plate is adjusted to the open position, allowing the paste to continue flowing from the discharge pipe into the collection bucket, effectively reducing paste waste and site contamination. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional front view of the present invention;

[0020] Figure 2 This is a top view of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall front view of the present invention;

[0022] Figure 4 This is a schematic diagram of the overall side view structure of this utility model;

[0023] Figure 5 This utility model Figure 1 A magnified structural diagram at point A;

[0024] Figure 6 This utility model Figure 1 A magnified structural diagram at point B.

[0025] In the diagram: 1. Support platform; 11. First connecting piece; 12. Second connecting piece; 13. Control panel; 111. Support base; 112. Support column; 121. First connecting plate; 122. Second connecting plate; 2. Telescopic mechanism; 21. Mounting plate; 22. Limiting cylinder; 23. Discharge pipe; 24. Feed pipe; 211. Limiting insert plate; 231. Limiting ring; 3. Protective assembly; 31. Fixing ring; 32. Control rod; 33. Protective plate; 4. Transport seat; 41. Roller; 42. Storage bucket. Detailed Implementation

[0026] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0029] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Please see Figure 1-6 The present invention relates to a concrete protective paste filling machine, comprising: a support platform 1, on which a first connector 11 is provided, and a second connector 12 perpendicular to the first connector 11 is provided on one side near the top of the first connector 11; a telescopic mechanism 2, which is installed at the end of the second connector 12 away from the first connector 11, and a discharge pipe 23 is installed at the output end of the telescopic mechanism 2. The top end of the discharge pipe 23 is connected to a feed pipe 24, and the end of the feed pipe 24 away from the discharge pipe 23 is connected to an external pump body.

[0031] The protective component 3 includes a fixing ring 31 disposed on the outer surface of the discharge pipe 23, a control rod 32 rotatably connected to the fixing ring 31, and a protective plate 33 disposed at the bottom end of the control rod 32. The protective plate 33 is located at the outlet of the discharge pipe 23 and is used to control the opening and closing of the outlet of the discharge pipe 23.

[0032] The support platform 1 refers to the base structure used to support the entire filling machine, usually made of welded steel or cast iron, and needs to have sufficient rigidity and stability; the first connecting member 11 is a column structure vertically fixed on the support platform 1, which can be square steel, round pipe or I-beam, etc.; the second connecting member 12 is a crossbeam structure perpendicular to the first connecting member 11, which realizes multi-directional positioning of the discharge pipe 23; the telescopic mechanism 2 refers to a mechanical device that can realize linear reciprocating motion, which in this embodiment can be implemented by hydraulic cylinder, pneumatic cylinder or electric push rod, etc.; The material pipe 23 is a pipe used to transport concrete protective paste, usually made of wear-resistant steel pipe or polyurethane-lined composite pipe; the inlet pipe 24 is a conveying pipe connecting the outlet pipe 23 to the external pump body, and its diameter must match the pump body outlet; the fixing ring 31 in the protective assembly 3 is a fastener that fits onto the outside of the outlet pipe 23, and can adopt a split clamp structure; the control rod 32 is an operating lever connecting the fixing ring 31 and the protective plate 33, usually a metal rod; the protective plate 33 is a baffle used to open and close the outlet, and can be made of stainless steel or wear-resistant engineering plastics;

[0033] The support platform 1 is connected to the first connecting piece 11 by flange bolts or direct welding, and the connection part needs to be reinforced. The first connecting piece 11 and the second connecting piece 12 are vertically fixed by L-shaped connecting plates or cross joints, and the connection angle must be strictly maintained at 90 degrees to ensure accurate positioning of the discharge pipe 23. The telescopic mechanism 2 is installed at the end of the second connecting piece 12 by U-shaped clamps or flanges, and its output end is connected to the discharge pipe 23 by a quick connector for disassembly and maintenance. The feed pipe 24 is connected to the discharge pipe 23 by flange connection or clamp connection, and a sealing ring is required at the interface. The fixing ring 31 is fixed to the outer surface of the discharge pipe 23 by bolt fastening or welding, and it is rotatably connected to the control rod 32 by a pin. The protective plate 33 is fixed to the bottom of the control rod 32 by hinge or thread connection, and its edge must match the shape of the discharge pipe 23 opening to ensure sealing.

[0034] The first connector 11 has a second connector 12 located near the top on one side, perpendicular to the first connector 11, which clarifies the spatial relationship between the two connectors. This near-top arrangement provides a larger working radius. The output end of the telescopic mechanism 2 is equipped with a discharge pipe 23, indicating that the movement of the discharge pipe 23 is directly driven by the telescopic mechanism 2. This design simplifies the transmission structure. The protective plate 33 is located at the outlet of the discharge pipe 23 and is used to control the switch at the outlet of the discharge pipe 23. This defines the core function of the protective component 3, which is to control the material flow mechanically rather than through a valve. This design can prevent the paste from solidifying and clogging at the valve.

[0035] Through the design of the connector and the adjustable telescopic mechanism 2, the discharge pipe 23 is precisely positioned to meet the filling requirements of different heights and angles; the mechanical switch structure of the protective component 3 avoids the problem of residual paste dripping from the discharge pipe 23; the entire device has a simple and reliable structure, and the standardized connection method of each component facilitates maintenance and replacement. Compared with integrated filling equipment, it has lower manufacturing and maintenance costs and is suitable for frequent mobile operations on construction sites.

[0036] Please see Figure 1 and Figure 6 In this embodiment, the fixing ring 31 is sleeved on the outer surface of the discharge pipe 23 near the bottom opening, and one side of the fixing ring 31 is connected and fixed to the outer peripheral wall of the discharge pipe 23 by a screw.

[0037] The fixing ring 31 has a through hole in the vertical direction on the side facing away from the screw, and the control rod 32 has an L-shaped structure with one end passing through the through hole;

[0038] The control lever 32 has an open position and a closed position. When the control lever 32 is in the open position, the protective plate 33 moves away from the outlet of the discharge pipe 23. When the control lever 32 is in the closed position, the protective plate 33 blocks the outlet of the discharge pipe 23.

[0039] The protective plate 33 has an elliptical structure and its area is larger than that of the outlet of the discharge pipe 23. When the protective plate 33 is closed, its upper surface is in contact with the bottom surface of the outlet of the discharge pipe 23.

[0040] The retaining ring 31 is a ring-shaped fastener fitted onto the outer surface of the discharge pipe 23 near the bottom opening. It is usually a split clamp structure or an integral cast ring, and the material can be carbon steel, stainless steel, or high-strength engineering plastic. The screw is a fastener used to connect the retaining ring 31 to the outer peripheral wall of the discharge pipe 23. It can be a standard threaded rod or a special screw with a lock nut. The through hole is a circular channel that penetrates the retaining ring 31 vertically on the side facing away from the screw. Its diameter must match the diameter of the control rod 32. The control rod 32 is an L-shaped operating lever, which can be formed by bending a metal rod or by welding sections. The protective plate 33 is an elliptical baffle used to block the opening of the discharge pipe 23. Its material must be wear-resistant and impact-resistant (such as manganese steel plate or ultra-high molecular weight polyethylene plate), and its area must be larger than the opening of the discharge pipe 23 to ensure a complete seal.

[0041] The connection between the retaining ring 31 and the outer wall of the discharge pipe 23 via a screw can be implemented in two ways: First, a nut seat can be welded directly to the outer wall of the discharge pipe 23, and the screw is screwed in to tighten against the inner wall of the retaining ring 31. Second, a threaded hole can be machined on the retaining ring 31, and the screw passes through the threaded hole to tighten against the outer wall of the discharge pipe 23 for radial fixation. The control rod 32 can pass through the through hole in several ways: a sliding bearing can be installed in the through hole to reduce friction, or a clearance fit can be used to ensure smooth rotation. The L-shaped short end of the control rod 32 can be threaded or have a pin hole for connecting the protective plate 33. A rubber sealing strip or a precision-machined mating surface can be installed on the contact surface between the protective plate 33 and the discharge pipe 23 opening; sealing is achieved by the downward pressure of the control rod 32 when closed.

[0042] The control lever 32 has an open position and a closed position. Understanding its specific movement trajectory requires referring to the attached diagram: In the open position, the control lever 32 rotates outward by approximately 90 degrees, causing the protective plate 33 to move horizontally out of the pipe opening projection area; in the closed position, the control lever 32 swings back to a vertical position, and the protective plate 33, under the influence of gravity, adheres tightly to the bottom surface of the pipe opening. The elliptical structure of the protective plate 33 is an optimized solution for the circular discharge pipe 23. Its major axis direction increases the sealing contact area, while its minor axis direction reduces the space for movement interference. This asymmetrical design balances sealing performance and operational convenience.

[0043] The mechanical linkage design between the fixed ring 31 and the control rod 32 enables precise opening and closing control of the discharge pipe 23 by the protective plate 33. Compared with electronic control methods such as solenoid valves, it is more suitable for the dusty and vibrating environment of the construction site. The lever principle of the L-shaped control rod 32 makes operation labor-saving, and it can be opened by increasing the torque even if the paste solidifies. The design of the protective plate 33 with an area larger than the pipe opening ensures the reliability of the seal and avoids paste leakage. The overall structure does not require electric drive, and the maintenance is simple and low-cost, making it particularly suitable for intermittent filling operations of high-viscosity materials such as concrete protection.

[0044] Please see Figure 1 and Figure 5 It should be noted that the output end of the telescopic mechanism 2 is fixedly connected to the mounting plate 21, and the mounting plate 21 is fixedly connected to the limiting cylinder 22. The inner cavity of the limiting cylinder 22 passes through the mounting plate 21, and the discharge pipe 23 is movably inserted into the limiting cylinder 22.

[0045] A limiting ring 231 is fixedly connected to the outer surface of the discharge pipe 23 near the top. The discharge pipe 23 is limited by the limiting ring 231 and the limiting cylinder 22. A limiting plate 211 is movably inserted into one side of the mounting plate 21. The limiting plate 211 passes through the mounting plate 21 and abuts against one side of the discharge pipe 23.

[0046] The telescopic mechanism 2 refers to a mechanical device capable of linear reciprocating motion. In this embodiment, it can be implemented using a hydraulic cylinder, pneumatic cylinder, electric push rod, or screw and nut mechanism. The mounting plate 21 is a transition structure connecting the output end of the telescopic mechanism 2 with other components. It is usually made of steel plate or aluminum alloy plate, and its thickness needs to be determined according to the load. The limiting cylinder 22 is a tubular guide structure fixed on the mounting plate 21. It can be made of seamless steel pipe or cast copper sleeve. The inner cavity needs to be precision machined to ensure the fitting accuracy with the discharge pipe 23. The discharge pipe 23 is a pipe for conveying concrete protective paste. It is usually made of wear-resistant alloy steel pipe or ceramic-lined composite pipe. The limiting ring 231 is an annular protrusion structure fixed on the outer surface of the discharge pipe 23. It can be fixed by welding, heat fitting, or threaded connection. The limiting insert plate 211 is a movable baffle inserted into the side of the mounting plate 21. It can be made of spring steel or tool steel, and its thickness needs to ensure rigidity.

[0047] The fixed connection between the output end of the telescopic mechanism 2 and the mounting plate 21 can be achieved by flange bolt connection or direct welding. The connection surface needs to be machined flat to ensure uniform force transmission. The connection between the mounting plate 21 and the limiting cylinder 22 can be implemented in two ways: one is to fix the limiting cylinder 22 to the surface of the mounting plate 21 by welding, and the other is to press the limiting cylinder 22 with an interference fit after machining a through hole in the mounting plate 21. The design of the inner cavity of the limiting cylinder 22 penetrating the mounting plate 21 allows the discharge pipe 23 to pass through the limiting cylinder 22 and the mounting plate 21 at the same time. This through structure reduces assembly errors. The way to realize the movable insertion of the discharge pipe 23 into the limiting cylinder 22 includes: setting a linear bearing in the limiting cylinder 22 to reduce friction, or using a clearance fit to ensure smooth sliding. The limiting fit between the limiting ring 231 and the limiting cylinder 22 can be achieved by step surface contact or conical surface contact. The limiting insert plate 211 is inserted through the guide groove on the side of the mounting plate 21. After penetrating the mounting plate 21, the contact surface of the limiting insert plate 21 that abuts against the discharge pipe 23 can be provided with a wear-resistant gasket.

[0048] The fact that the inner cavity of the limiting cylinder 22 penetrates the mounting plate 21 indicates that the limiting cylinder 22 is not just a simple surface fixing component, but forms a complete guide channel through the mounting plate 21. This design can simultaneously position the discharge pipe 23 radially and axially. The limiting principle of the discharge pipe 23 being limited by the limiting ring 231 and the limiting cylinder 22 needs to be understood in conjunction with the attached drawings: when the discharge pipe 23 moves outward, the limiting ring 231 will contact the end face of the limiting cylinder 22 to prevent further displacement. The limiting insert 211 penetrating the mounting plate 21 and abutting against one side of the discharge pipe 23 indicates that the limiting insert 211 not only plays an axial limiting role, but also prevents the discharge pipe 23 from rotating inside the limiting cylinder 22 through lateral pressure, thus achieving circumferential positioning.

[0049] The design of the limiting cylinder 22 and the limiting ring 231 enables precise control of the movement stroke of the discharge pipe 23, avoiding structural damage caused by excessive extension. The dual limiting function of the limiting plate 211 ensures the stability of the discharge pipe 23 during operation and facilitates quick release during disassembly and maintenance. The entire limiting system adopts a purely mechanical structure, which is more suitable for the humid and dusty environment of concrete work sites compared with electronic limiting devices. The transition connection design of the mounting plate 21 enables the telescopic mechanism 2 and the discharge pipe 23 to form a modular assembly, which facilitates the replacement of discharge pipes 23 of different lengths according to different filling height requirements, improving the versatility and maintainability of the equipment.

[0050] Please see Figure 1 and Figure 2 Furthermore, the first connector 11 includes a support base 111 fixed to the support platform 1 and a support column 112 fixed to the support base 111.

[0051] The second connector 12 includes a first connecting plate 121 and a second connecting plate 122. One side of the first connecting plate 121 is hinged to one side of the support column 112, and the second connecting plate 122 is hinged to the other side of the first connecting plate 121. This design allows for better adjustment of the position of the discharge pipe 23 when it is necessary to align the discharge pipe 23 with the inlet of the storage bucket 42, making filling more convenient.

[0052] Please see Figure 1 and Figure 2 Specifically, a transport seat 4 is placed in front of the support platform 1. Multiple rollers 41 are connected to the transport seat 4 in a horizontal rotation. Storage buckets 42 for loading paste are placed on the multiple rollers 41. A control panel 13 for controlling the filling machine switch is installed on the support platform 1.

[0053] When filling is required, first place the collection bucket 42 on the roller 41 of the transport seat 4, then adjust the position of the discharge pipe 23 by rotating the hinge on the second connector 12 so that the outlet of the discharge pipe 23 is aligned with the inlet of the collection bucket 42. Then, start and stop the pump body by using the button on the control panel 13 to draw the paste from the inlet pipe 24 and finally inject it into the collection bucket 42 from the discharge pipe 23. When a collection bucket 42 is filled and a bucket needs to be changed, first grasp the control lever 32 and rotate it to rotate the protective plate 33 to the closed position so that the protective plate 33 seals the outlet of the discharge pipe 23 to prevent the paste from continuing to drip. After the next collection bucket 42 is placed, grasp the control lever 32 and rotate it to adjust the protective plate 33 to the open position so that filling can continue.

[0054] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A concrete protective paste filling machine, characterized in that, include: A support platform (1) is provided on the support platform (1), and a second connector (12) is provided on one side of the first connector (11) near the top, perpendicular to the first connector (11). Telescopic mechanism (2), the telescopic mechanism (2) is installed at the end of the second connector (12) away from the first connector (11), the output end of the telescopic mechanism (2) is equipped with a discharge pipe (23), the top end of the discharge pipe (23) is connected to a feed pipe (24), and the end of the feed pipe (24) away from the discharge pipe (23) is connected to an external pump body; The protective component (3) includes a fixing ring (31) disposed on the outer surface of the discharge pipe (23), a control rod (32) rotatably connected to the fixing ring (31), and a protective plate (33) disposed at the bottom end of the control rod (32). The protective plate (33) is located at the outlet of the discharge pipe (23) and is used to control the opening and closing of the outlet of the discharge pipe (23).

2. The concrete protective paste filling machine according to claim 1, characterized in that: The fixing ring (31) is sleeved on the outer surface of the discharge pipe (23) near the bottom opening. One side of the fixing ring (31) is connected and fixed to the outer peripheral wall of the discharge pipe (23) by a screw.

3. The concrete protective paste filling machine according to claim 1, characterized in that: The fixing ring (31) has a through hole in the vertical direction on the side opposite to the screw, and the control rod (32) has an L-shaped structure and one end passes through the through hole.

4. A concrete protective paste filling machine according to claim 1, characterized in that: The control lever (32) has an open position and a closed position. When the control lever (32) is in the open position, the protective plate (33) moves away from the outlet of the discharge pipe (23). When the control lever (32) is in the closed position, the protective plate (33) blocks the outlet of the discharge pipe (23).

5. A concrete protective paste filling machine according to claim 1, characterized in that: The protective plate (33) has an elliptical structure and its area is larger than that of the outlet pipe (23). When the protective plate (33) is closed, its upper surface is in contact with the bottom surface of the outlet pipe (23).

6. A concrete protective paste filling machine according to claim 1, characterized in that: The output end of the telescopic mechanism (2) is fixedly connected to an installation plate (21), and a limiting cylinder (22) is fixedly connected to the installation plate (21). The inner cavity of the limiting cylinder (22) penetrates the installation plate (21), and the discharge pipe (23) is movably inserted into the limiting cylinder (22).

7. A concrete protective paste filling machine according to claim 6, characterized in that: A limiting ring (231) is fixedly connected to the outer surface of the discharge pipe (23) near the top. The discharge pipe (23) is limited by the limiting ring (231) and the limiting cylinder (22). A limiting plate (211) is movably inserted into one side of the mounting plate (21). The limiting plate (211) passes through the mounting plate (21) and abuts against one side of the discharge pipe (23).

8. A concrete protective paste filling machine according to claim 1, characterized in that: The first connector (11) includes a support base (111) fixed on the support platform (1) and a support column (112) fixed on the support base (111).

9. A concrete protective paste filling machine according to claim 1, characterized in that: The second connector (12) includes a first connecting plate (121) and a second connecting plate (122). One side of the first connecting plate (121) is hinged to one side of the support column (112), and the second connecting plate (122) is hinged to the other side of the first connecting plate (121).

10. A concrete protective paste filling machine according to claim 1, characterized in that: A transport seat (4) is placed in front of the support platform (1). Multiple rollers (41) are connected to the transport seat (4) in a horizontal rotation. Storage buckets (42) for loading paste are placed on the multiple rollers (41). A control panel (13) for controlling the switch of the filling machine is installed on the support platform (1).

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