Leakage-proof pipeline structure for feeding and discharging of filling machine

Abstract

The utility model provides a liquid leakage prevention pipeline structure for feeding and discharging of a filling machine, which comprises a feeding and discharging pipe, one end of the feeding and discharging pipe is sequentially connected with a butt joint pipe and a conveying pipe, a twisting disc is arranged around the outer side of the pipe wall of the butt joint pipe, a connecting ring A is arranged at the end, connected with the butt joint pipe, of the feeding and discharging pipe, and a connecting inner ring A is arranged at the end, connected with the feeding and discharging pipe, of the butt joint pipe. A connecting ring B is arranged at the end, connected with the conveying pipe, of the butt-joint pipe, a connecting inner ring B is arranged at the end, connected with the butt-joint pipe, of the conveying pipe, and the connecting ring B is connected with the connecting inner ring B in a screwed mode. The bottom of the pipe wall of the butt-joint pipe and the bottom of the pipe wall of the conveying pipe are each internally provided with an inner groove, a flow guide opening is formed in the inner groove of the butt-joint pipe, and a flow guide pipe communicated with the flow guide opening is arranged at the bottom of the butt-joint pipe. The connecting ring and the connecting inner ring are arranged at the pipeline connecting position, the depth of the connector in the pipeline structure can be increased, the connecting area can be increased, the sealing performance of the connector is further improved, and the resistance of seepage flowing out of the pipeline structure is increased.

Description

Technical Field

[0001] This utility model relates to the technical field of filling machine pipeline structure, and in particular to a leak-proof pipeline structure for material inlet and outlet of a filling machine. Background Technology

[0002] Filling equipment is a type of packaging machine that is widely used for filling liquids. It mainly consists of inlet and outlet pipes, water storage tanks, lifting filling valves, positioning assemblies, etc. When filling liquids, the filling equipment needs to be connected to the external liquid delivery pipe and outlet pipe through the inlet and outlet pipes on the equipment.

[0003] Because the inlet and outlet pipes have interfaces, the filling liquid is prone to slow leakage at these interfaces during long-term use. This leakage not only corrodes the pipe structure itself but also drips onto the filling machine, causing corrosion to other structural components. Therefore, to solve the leakage problem in the filling machine's inlet and outlet pipes, existing technology proposes a leak-proof structure for filling machines (patent number: CN202220805757.8), which includes a base plate, a filling unit, and an anti-drip unit. The base plate is rectangular. The filling unit includes a screw, a fixed plate, a bearing, a sliding column, a sliding plate, an inlet pipe, a rectangular support plate, and an outlet pipe. The two ends of the upper surface of one end of the base plate are fixedly connected to the lower ends of two corresponding sliding columns. The upper ends of the two sliding columns are fixedly connected to the two ends of the lower surface of the fixed plate. The middle sides of the two sliding columns are vertically slidably connected to the two ends of the upper surface of the sliding plate. The middle part of the upper surface of the fixed plate is threadedly connected to the middle side of the screw. After filling, the residual liquid in the outlet pipe can be collected, preventing liquid from dripping onto the equipment and causing dirt and corrosion. This eliminates the need for regular cleaning and improves production efficiency.

[0004] Existing filling machine leak-proof structures rely more on external structures to catch the slowly leaking filling liquid from the pipe interface to solve the leakage problem. However, relying on external structures not only increases the complexity of the entire filling machine structure but also makes it inconvenient to operate; at the same time, it does not play any role in preventing leakage from the pipe structure itself. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing anti-leakage structure of filling machines mainly relies on external structures to catch the filling liquid that slowly leaks from the pipe interface to solve the leakage problem. Relying on external structures not only increases the complexity of the entire filling machine structure, but also makes it inconvenient to operate; at the same time, it does not play any role in preventing leakage of the pipe structure itself.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a leak-proof pipe structure for the inlet and outlet of a filling machine, including an inlet and outlet pipe, one end of which is connected to the filling machine, characterized in that: a pair of connecting pipes and a conveying pipe are sequentially connected to the other end of the inlet and outlet pipes; a torsion disc is arranged around the outer side of the wall of the connecting pipe; a connecting ring A is provided at the end of the inlet and outlet pipe connected to the connecting pipe; a connecting inner ring A is opened at the end of the connecting pipe connected to the inlet and outlet pipe; the connecting ring A is screwed to the connecting inner ring A; a connecting ring B is provided at the end of the connecting pipe connected to the conveying pipe; a connecting inner ring B is opened at the end of the conveying pipe connected to the connecting pipe; the connecting ring B is screwed to the connecting inner ring B; an inner groove is opened at the bottom of the wall of the connecting pipe and the bottom of the wall of the conveying pipe; a guide port is opened in the inner groove of the connecting pipe; and a guide pipe communicating with the guide port is provided at the bottom of the connecting pipe.

[0007] Preferably, the outer walls of connecting ring A and connecting ring B are provided with external threads, and the inner walls of connecting inner ring A and connecting inner ring B are provided with internal threads. The internal and external threads support the screwing of the connecting rings and connecting inner rings, enabling the pipe structure to be disassembled.

[0008] Preferably, a retaining ring is provided at the end of the connecting ring B, the ring width of which is greater than the ring width of the connecting ring B, and the retaining ring and the connecting ring B are on the same center line.

[0009] Preferably, a ring-shaped groove is formed inside the delivery pipe at the end of the inner connecting ring B, and the width of the groove is the same as the width of the retaining ring. The retaining ring and the groove ensure that the connecting ring B and the inner connecting ring B do not separate during rotation, maintaining an integrated pipe connection structure.

[0010] Preferably, the bottom of the inner connecting ring A is provided with a sealing ring A having the same ring diameter and width as the connecting ring A, and the bottom of the retaining groove is provided with a sealing ring B having the same ring diameter and width as the retaining ring. The sealing rings provide a certain degree of sealing and leak-proof function for the pipe connection point.

[0011] Preferably, a rubber pad is provided around the wall of the slot. The rubber pad serves both to seal and prevent leakage, and to reduce the friction between the retaining rings when they rotate within the slot.

[0012] Preferably, a manifold is formed inside the bottom wall of the connecting pipe, and the inner groove communicates with the manifold. The manifold can serve to buffer leaked liquid.

[0013] Preferably, the inner groove slopes downwards towards the confluence channel. This downward slope ensures that leaked liquid flows into the confluence channel under gravity.

[0014] Preferably, the length of the inner groove located within the delivery pipe is the same as the sum of the lengths of the connecting inner ring B and the slot. The inner groove ensures that liquid leaking from the connecting inner ring B or the slot is received.

[0015] Preferably, a pair of alignment grooves are formed on the upper outer wall of the connection between the inlet / outlet pipe and the connecting pipe. The number of turns of the external thread on the outer wall of the connecting ring A and the internal thread on the inner wall of the connecting inner ring A are set to an integer multiple, that is, starting from when the two pairs of alignment grooves are aligned, the two pairs of alignment grooves must remain aligned when tightened. This facilitates the alignment and screwing operation and ensures that the inner groove remains at the bottom of the pipe structure after the pipe structure is connected.

[0016] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0017] (1) By using a connecting ring and an inner connecting ring at the pipe connection, the depth of the interface in the pipe structure can be extended and the connection area can be increased, thereby improving the sealing of the connection interface and increasing the resistance of the liquid flowing out of the pipe structure after leakage.

[0018] (2) By setting an inner groove and a manifold inside the pipe wall, the filling liquid that slowly leaks out from the pipe interface can be collected. Then, by setting a guide pipe to connect with the manifold and connecting it with a special guide structure, the leaked filling liquid can be prevented from dripping onto the filling machine and causing corrosion. This also simplifies the structure of the filling machine. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external overall disassembled structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the bottom split structure inside the connecting pipe of this utility model;

[0021] Figure 3 This is a schematic diagram of the semi-split structure of the conveying pipe of this utility model;

[0022] Figure 4 This is a schematic diagram of the longitudinal cross-sectional structure of the butt joint pipe of this utility model;

[0023] Figure 5 This is a schematic diagram of the longitudinal cross-sectional structure of the conveying pipe of this utility model;

[0024] Figure 6 This is a schematic diagram of the connection structure of the inlet / outlet pipe, connecting pipe, and conveying pipe of this utility model.

[0025] Reference numerals in the attached diagram: 1. Inlet / outlet pipe; 2. Connecting ring A; 3. Sealing ring A; 4. Connecting inner ring A; 5. Alignment groove; 6. Torque disc; 7. Connecting ring B; 8. Snap ring; 9. Sealing ring B; 10. Connecting inner ring B; 11. Conveying pipe; 12. Guide pipe; 13. Connecting pipe; 14. Inner groove; 15. Manifold; 16. Guide port; 17. Snap groove; 18. Rubber pad; 19. External thread; 20. Internal thread. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1:

[0029] refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6One end of the inlet / outlet pipe 1 is connected to the filling machine. The other end of the inlet / outlet pipe 1 is sequentially connected to a pair of connecting pipes 13 and a conveying pipe 11. A twist disc 6 is arranged around the outer wall of the connecting pipe 13 to facilitate the rotation of the connecting pipe 13. A connecting ring A2 is provided at the end of the inlet / outlet pipe 1 that connects to the connecting pipe 13. A connecting inner ring A4 is opened at the end of the connecting pipe 13 that connects to the inlet / outlet pipe 1. The connecting ring A2 and the connecting inner ring A4 are screwed together. A connecting ring B7 is provided at the end of the connecting pipe 13 that connects to the conveying pipe 11. The conveying pipe 11... A connecting inner ring B10 is provided at one end of the connecting pipe 13. Connecting ring B7 is screwed onto connecting inner ring B10. Connecting ring A2 and connecting ring B7 have external threads 19 on their outer outer walls. Connecting inner ring A4 and connecting inner ring B10 have internal threads 20 on their inner inner walls. The internal threads 20 and external threads 19 are provided to support the screwing of the connecting rings and connecting inner rings, enabling the pipe structure to be disassembled. A retaining ring 8 is provided at the end of connecting ring B7. The ring width of retaining ring 8 is greater than the ring width of connecting ring B7, and retaining ring 8 is connected to the connecting inner ring. With the connecting ring B7 aligned with the centerline, a ring-shaped groove 17 is formed inside the conveying pipe 11 at the end of the connecting inner ring B10. The groove width of the groove 17 is the same as the ring width of the retaining ring 8. The arrangement of the retaining ring 8 and the groove 17 ensures that the connecting ring B7 and the connecting inner ring B10 do not separate during rotation, maintaining an integrated pipe connection structure. The bottom of the connecting inner ring A4 is provided with a sealing ring A3 with the same ring diameter and ring width as the connecting ring A2. The bottom of the groove 17 is provided with a sealing ring with the same ring diameter and ring width as the retaining ring 8. The sealing ring B9 can provide a certain degree of sealing and leak prevention for the pipe connection point. A rubber pad 18 is provided around the groove wall of the groove 17, which can not only provide sealing and leak prevention, but also reduce the friction between the retaining rings 8 when they rotate in the groove 17. An inner groove 14 is opened at the bottom of the pipe wall of the connecting pipe 13 and the bottom of the pipe wall of the conveying pipe 11. A guide port 16 is opened in the inner groove 14 of the connecting pipe 13. A guide pipe 12 connected to the guide port 16 is provided at the bottom of the connecting pipe 13.

[0030] Example 2:

[0031] refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 A manifold 15 is formed in the bottom wall of the connector 13. The inner groove 14 is connected to the manifold 15. The manifold 15 can buffer the leaked liquid. The inner groove 14 is inclined downward towards the manifold 15, which can ensure that the leaked liquid flows into the manifold 15 under the action of gravity. The length of the inner groove 14 located in the delivery pipe 11 is the same as the sum of the lengths of the connecting inner ring B10 and the slot 17, which can ensure that the liquid leaking from the connecting inner ring B10 or the slot 17 is received.

[0032] Example 3:

[0033] refer to Figure 1A pair of alignment grooves 5 are opened on the upper outer wall of the connection between the inlet / outlet pipe 1 and the connecting pipe 13. The number of turns of the external thread 19 on the outer wall of the connecting ring A2 and the internal thread 20 on the inner wall of the connecting inner ring A4 are set to an integer multiple. That is, the two pairs of alignment grooves 5 are tightened from the point of being directly opposite each other. When tightened, the two pairs of alignment grooves 5 must remain directly opposite each other. This can facilitate the alignment and screwing operation and ensure that the inner groove 14 always remains at the bottom of the pipe structure after the pipe structure is connected.

[0034] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0035] Secondly, the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0036] Finally, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leak-proof pipe structure for feeding and discharging materials into a filling machine, comprising an inlet / outlet pipe (1), one end of which is connected to the filling machine, characterized in that: The other end of the inlet / outlet pipe (1) is sequentially connected to a pair of connecting pipes (13) and a conveying pipe (11). A twist disc (6) is arranged around the outer side of the connecting pipe (13). A connecting ring A (2) is provided at the end of the inlet / outlet pipe (1) connected to the connecting pipe (13). A connecting inner ring A (4) is opened at the end of the connecting pipe (13) connected to the inlet / outlet pipe (1). The connecting ring A (2) is screwed to the connecting inner ring A (4). The end of the connecting pipe (13) connected to the conveying pipe (11) is provided with... There is a connecting ring B (7), and a connecting inner ring B (10) is opened at the end of the connecting pipe (13) of the conveying pipe (11). The connecting ring B (7) is screwed to the connecting inner ring B (10). An inner groove (14) is opened at the bottom of the pipe wall of the connecting pipe (13) and the bottom of the pipe wall of the conveying pipe (11). A guide port (16) is opened in the inner groove (14) of the connecting pipe (13). A guide pipe (12) communicating with the guide port (16) is provided at the bottom of the connecting pipe (13).

2. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 1, characterized in that: The outer walls of the connecting ring A (2) and the connecting ring B (7) are provided with external threads (19), and the inner walls of the connecting inner ring A (4) and the connecting inner ring B (10) are provided with internal threads (20).

3. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 1, characterized in that: The end of the connecting ring B (7) is provided with a retaining ring (8), the ring width of the retaining ring (8) is greater than the ring width of the connecting ring B (7), and the retaining ring (8) and the connecting ring B (7) are on the same center line.

4. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 1, characterized in that: A ring-shaped groove (17) is formed inside the delivery pipe (11) at the end of the connecting inner ring B (10), and the width of the groove (17) is the same as the width of the retaining ring (8).

5. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 4, characterized in that: The bottom of the inner ring A (4) is provided with a sealing ring A (3) with the same ring diameter and ring width as the inner ring A (2), and the bottom of the groove (17) is provided with a sealing ring B (9) with the same ring diameter and ring width as the groove ring (8).

6. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 4, characterized in that: A rubber pad (18) is provided around the groove wall of the card slot (17).

7. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 1, characterized in that: A manifold (15) is opened in the bottom wall of the connecting pipe (13), and the inner groove (14) is connected to the manifold (15).

8. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 1, characterized in that: The inner trough (14) slopes downward toward the confluence channel (15).

9. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 1, characterized in that: The length of the inner groove (14) located in the delivery pipe (11) is the same as the sum of the lengths of the connecting inner ring B (10) and the slot (17).

10. The anti-leakage pipeline structure for the inlet and outlet of a filling machine according to claim 1, characterized in that: A pair of matching grooves (5) are opened on the upper outer wall of the connection between the inlet / outlet pipe (1) and the connecting pipe (13).

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