Vacuumizing matching part

Abstract

The utility model relates to the technical field of vacuumizing, in particular to a vacuumizing matching piece which comprises a base portion and a movable portion, a binding face is arranged on the bottom face of the base portion, and the base portion and the movable portion are communicated through a flexible pipe to form an air duct. The vacuumizing matching part can be fully and tightly attached to the air distribution guide rail through the attaching face, the base part and the movable part can relatively move through the flexible pipe, the connectivity of an air channel is guaranteed, the requirement for length change of the air channel can be flexibly met, it is guaranteed that vacuumizing operation can be reliably conducted, air gaps are effectively avoided, and the working efficiency is improved. And the vacuumizing efficiency and effect are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of vacuum technology, and in particular to a vacuum fitting component. Background Technology

[0002] Vacuuming is often required in the packaging of food and other materials. One vacuuming method is mobile vacuuming, where the vacuuming actuator is movable. A gas distribution guide rail is installed along the actuator's movement path, with several air holes spaced along its length for vacuuming. The actuator has a mating component that moves along the guide rail. When the actuator moves to a position where the mating component connects with an air hole, it performs vacuuming for a period of time. Then it continues moving, performing vacuuming for another period when the mating component connects with the next air hole. This multi-station mobile vacuuming improves overall processing efficiency. However, current technology often suffers from poor fit between the mating component and the guide rail, leading to air gaps that can appear during movement, affecting vacuuming efficiency and effectiveness. Utility Model Content

[0003] The technical problem to be solved and the technical task proposed by this utility model is to improve the existing technology and provide a vacuuming fitting component, which solves the problem that air gaps easily appear between the fitting component and the gas distribution guide rail during the movement process, affecting the vacuuming efficiency and effect.

[0004] To solve the above technical problems, the technical solution of this utility model is as follows:

[0005] A vacuuming fitting includes a base and a movable part. The bottom surface of the base has a contact surface. A flexible tube connects the base and the movable part. Cavities are provided on both the base and the movable part to communicate with the flexible tube, forming a vent. An inlet for the vent is provided on the contact surface, and an outlet for the vent is provided on the movable part. This vacuuming fitting allows for a tight fit with a gas distribution guide rail via the contact surface. The flexible tube connects the base and the movable part, allowing relative movement between them while ensuring airflow connectivity. This allows for flexible adaptation to changes in the distance between the vacuuming actuator and the gas distribution guide rail, ensuring reliable vacuuming operations, effectively preventing air gaps, and guaranteeing vacuuming efficiency and effectiveness.

[0006] Furthermore, an elastic element is provided between the base and the movable part, so that the base and the movable part can float elastically, can be elastically reset, and flexibly adapt to the changes in the distance between the vacuum actuator and the gas distribution guide rail.

[0007] Furthermore, several elastic elements are spaced apart on the circumference of the flexible tube to provide uniform elastic support, prevent the flexible tube from being damaged by excessive force, ensure the long-term stable operation of the flexible tube, and extend its service life.

[0008] Furthermore, the base is provided with guide wheels, and there is a preset height difference between the traveling surface formed by the guide wheels and the contact surface. The guide wheels enable the vacuum fitting to smoothly enter and exit the gas distribution guide rail, effectively avoiding collisions and impacts, protecting components, extending service life, and ensuring long-term stable operation of the equipment.

[0009] Furthermore, the preset height difference is 0.3 to 1 mm, which allows the vacuum fitting component to fit more precisely and smoothly with the gas distribution guide rail.

[0010] Furthermore, the contact surface is made of a smooth and wear-resistant material to ensure that the contact surface can fully and tightly contact the surface of the air distribution guide rail, maintain good sealing performance, thereby ensuring the reliability of vacuuming, low frictional resistance, which helps to reduce drive power consumption, good wear resistance, and long service life.

[0011] Furthermore, the bonding surface is detachably connected to the base, making it easy to maintain and replace.

[0012] Furthermore, the movable part slides with the base, and a guide mechanism is provided between the movable part and the base to make the relative movement between the movable part and the base more stable, avoid unnecessary impact forces on the flexible tube, and ensure that the vacuum fitting can stably and reliably form a channel for vacuuming.

[0013] Furthermore, the movable part is provided with multiple ventilation outlets of the ventilation channels, which helps to extract air more fully and efficiently, and improve the efficiency of vacuuming.

[0014] Furthermore, the flexible tube is a corrugated tube, which has high structural strength, good stability, and long service life.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] The vacuum fitting component described in this utility model can fully and tightly fit with the gas distribution guide rail through the mating surface, and the base and the movable part can move relative to each other through a flexible tube while ensuring the continuity of the gas path. It can flexibly adapt to the needs of changes in gas path length, ensure reliable vacuuming operations, effectively avoid air gaps, and ensure the efficiency and effect of vacuuming. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the bottom side structure of the vacuum fitting component of this utility model;

[0018] Figure 2 This is a schematic diagram of the top side structure of the vacuum fitting component of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the vacuum fitting component of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the concealed movable part of the vacuum fitting component of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of a vacuum pumping mechanism according to the present invention;

[0022] Figure 6 This is a schematic diagram of the vacuum assembly of the present invention positioned on the gas distribution guide rail.

[0023] Figure 7 This is a partial structural diagram of the vacuum fitting component of this utility model positioned on the transition rail.

[0024] In the picture:

[0025] Fitting part 1, base 11, moving part 12, flexible tube 13, mating surface 14, air inlet 15, air outlet 16, guide wheel 17, elastic element 18, air distribution guide rail 2, air hole 21, transition rail 22. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0027] The present invention discloses a vacuum fitting component that can fit tightly and fully with the gas distribution guide rail during movement, ensuring airtightness and guaranteeing vacuuming efficiency and effect.

[0028] like Figures 1 to 4As shown, a vacuuming fitting includes a base 11 and a movable part 12. The bottom surface of the base 11 has a contact surface 14. A flexible tube 13 connects the base 11 and the movable part 12. Cavities are provided on the base 11 and the movable part 12 to communicate with the flexible tube 13, forming a ventilation channel. An air inlet 15 of the ventilation channel is provided on the contact surface 14, and an air outlet 16 of the ventilation channel is provided on the movable part 12. The vacuuming fitting is used to connect a gas distribution track to a movable vacuuming actuator. The movement path of the vacuuming actuator is difficult to maintain a high degree of parallelism with the path of the gas distribution track. Therefore, during the movement of the vacuuming actuator, the distance between the vacuuming actuator and the gas distribution track fluctuates. To ensure the reliability of vacuuming and avoid vacuum breakage due to distance changes, the vacuuming fitting adopts a movable and adaptable structure to flexibly accommodate the distance changes between the vacuuming actuator and the gas distribution track. The base 11 and the movable part 12 can move relative to each other through the flexible tube 13 to form an air passage of variable length, while always ensuring the connectivity and external sealing of the air passage. This ensures that the vacuuming actuator can reliably connect with the gas distribution guide rail through the vacuuming fitting during movement, forming a stable air passage and thus ensuring the reliability of vacuuming. Multiple air outlets 16 of the aforementioned air passages can be provided on the movable part 12 to increase the flow area and allow for multi-point air extraction, which is beneficial for more efficient vacuuming.

[0029] Furthermore, an elastic element 18 is provided between the base 11 and the movable part 12. Specifically, several elastic elements 18 are provided, which can be springs, and are evenly distributed around the circumference of the flexible tube 13. This allows the base and the movable part to float elastically, enabling them to return to their original position and flexibly adapt to changes in the distance between the vacuum actuator and the gas distribution guide rail. It also protects the flexible tube 13, preventing excessive force from being applied to it when the base 11 and the movable part 12 move relative to each other, thus ensuring the long-term stability of the flexible tube 13 and its function as a gas path. To ensure sealing and connection stability, flanges are provided at both ends of the flexible tube 13, and the ends of the flexible tube 13 are connected to the base 11 and the movable part 12 through the flanges. Preferably, the flexible tube 13 is a corrugated pipe, which has a stable structure, high strength, and can undergo elastic expansion and contraction deformation, making it less prone to breakage. Furthermore, the movable part 12 is slidably engaged with the base 11, and a guide mechanism is provided between the movable part 12 and the base 11. Specifically, a protrusion is provided on the edge of the base 11, and guide strips are provided on both sides of the protrusion on the movable part 12. A guide groove is formed between the two guide strips. The protrusion slides along the guide groove to limit and guide the relative movement of the movable part 12 and the base 11. The structure is simple and easy to implement, making the relative movement between the movable part 12 and the base 11 more stable. In this embodiment, the flexible tube 13 is a relatively short pipe. The relative sliding direction of the movable part 12 and the base 11 defined by the guide mechanism is along the axial direction of the flexible tube 13, thereby avoiding unnecessary lateral impact force on the flexible tube 13 and ensuring that the vacuum fitting can stably and reliably form a gas passage for vacuuming.

[0030] Furthermore, the contact surface 14 is made of a smooth and wear-resistant material, such as polytetrafluoroethylene or polyurethane, to ensure that the contact surface can fully and tightly contact the surface of the air distribution guide rail, maintaining good sealing performance, thereby ensuring the reliability of vacuuming. It also features low frictional resistance, which helps reduce drive power consumption, good wear resistance, and a long service life. In addition, the contact surface 14 is detachably connected to the base 11. As the contact surface 14 is a consumable part, it will wear after prolonged sliding contact with the air distribution guide rail 2. The detachable connection structure facilitates maintenance and replacement. Specifically, the contact surface 14 is provided with several connection holes, and screws are used to connect the contact surface 14 to the base 11, ensuring a tight and stable connection while facilitating replacement.

[0031] like Figures 5 to 7As shown, a vacuuming mechanism mainly includes the aforementioned vacuuming fitting 1 and a gas distribution guide rail 2. The gas distribution guide rail 2 has a plurality of air holes 21 spaced apart along its path direction on its surface. The gas distribution guide rail 2 is connected to a vacuum generating device (not shown in the figure), meaning that the vacuum generating device is connected to the air holes 21 on the gas distribution guide rail 2 to draw air through the air holes 21 to generate a negative pressure vacuum. The vacuuming fitting 1 is provided with a vent for communicating with the air holes 21, and the vacuuming fitting 1 is provided with a feature for fitting against the surface of the gas distribution guide rail 2 to move along the gas distribution guide rail 2. The traveling contact surface 14 is provided with the air inlet 15 of the air passage. The vacuuming fitting 1 is used to connect with the vacuuming actuator. Specifically, the air outlet 16 of the air passage on the vacuuming fitting 1 is connected to the vacuuming actuator. Thus, when the vacuuming fitting 1 moves along the gas distribution guide 2 to the air inlet 15 of the vacuuming fitting 1 and connects with the air hole 21 of the gas distribution guide 2, the vacuuming actuator is connected to the vacuum generating device through the air passage, and the vacuuming actuator can perform the vacuuming operation.

[0032] To ensure a smoother transition between the vacuum assembly 1 and the gas distribution guide rail 2, and to prevent collisions and impacts that could affect equipment operation or damage components, transition rails 22 are connected to the inlet and outlet ends of the gas distribution guide rail 2. Specifically, there is a preset height difference I between the surface of the transition rail 22 and the surface of the gas distribution guide rail 2. A guide wheel 17 is provided on the base 11, which is used to travel along the transition rail 22. There is a preset height difference II between the travel surface formed by the guide wheel 17 (which is the plane where the lowest point of the rim of all the guide wheels is located) and the contact surface 14. The preset height difference I is equal to the preset height difference II. The guide wheel 17 rolls forward, allowing the vacuum assembly 1 to smoothly enter and exit the transition rail 22. This effectively reduces or avoids impacts, improves smoothness, and when the vacuum assembly 1 moves onto the transition rail 22, the guide wheel 17 contacts the rail surface of the transition rail 22. That is, the traveling surface formed by the guide wheel 17 and the rail surface of the transition rail 22 are on the same plane. At this time, the contact surface 14 is exactly at the same height as the rail surface of the gas distribution guide rail 2. Thus, when the vacuum assembly 1 moves along the transition rail 22 to the gas distribution guide rail 2, the contact surface 14 can accurately contact the rail surface of the gas distribution guide rail 2 without impact. This allows the vacuum assembly 1 to smoothly and accurately move onto the gas distribution guide rail 2, effectively avoiding impacts, preventing component damage, ensuring long-term stable operation of the equipment, and ensuring reliable vacuuming operations. Furthermore, from a height perspective, specifically, the transition rail 22 can be positioned at a height lower than the gas distribution guide rail 2, with the corresponding travel surface formed by the guide wheels 17 being lower than the contact surface 14; or the transition rail 22 can be positioned at a height higher than the gas distribution guide rail 2, with the corresponding travel surface formed by the guide wheels 17 being higher than the contact surface 14. The preset height difference one and preset height difference two are within the range of 0.3–1 mm, which helps to ensure that the vacuum fitting component 1 can more precisely and smoothly fit tightly with the gas distribution guide rail 2.

[0033] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A vacuum-sealing fitting, characterized in that, It includes a base (11) and a movable part (12). The bottom surface of the base (11) is provided with a fitting surface (14). A flexible tube (13) is connected between the base (11) and the movable part (12). The base (11) and the movable part (12) are provided with cavities to communicate with the flexible tube (13) to form a ventilation channel. The fitting surface (14) is provided with a ventilation inlet (15) of the ventilation channel. The movable part (12) is provided with a ventilation outlet (16) of the ventilation channel.

2. The vacuum-drawing fitting according to claim 1, characterized in that, An elastic element (18) is provided between the base (11) and the movable part (12).

3. The vacuum fitting according to claim 2, characterized in that, The elastic element (18) is provided in a plurality of spaced-apart arrangements on the circumference of the flexible tube (13).

4. The vacuum fitting according to claim 1, characterized in that, The base (11) is provided with guide wheels (17), and there is a preset height difference between the traveling surface formed by the guide wheels (17) and the contact surface (14).

5. The vacuum fitting according to claim 4, characterized in that, The preset height difference is 0.3 to 1 mm.

6. The vacuum fitting according to claim 1, characterized in that, The bonding surface (14) is made of a smooth and wear-resistant material.

7. The vacuum fitting according to claim 1, characterized in that, The bonding surface (14) is detachably connected to the base (11).

8. The vacuum fitting according to claim 1, characterized in that, The movable part (12) is slidably engaged with the base (11), and a guide mechanism is provided between the movable part (12) and the base (11).

9. The vacuum fitting according to claim 1, characterized in that, The movable part (12) is provided with a plurality of ventilation outlets (16) of the ventilation channels.

10. The vacuum fitting according to claim 1, characterized in that, The flexible tube (13) is a corrugated tube.

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