Quick-cutting positioning suction nozzle head

Abstract

The utility model belongs to the technical field of quick-switching positioning suction nozzle heads, and particularly relates to a quick-switching positioning suction nozzle head which comprises a sealed cabin, a first air groove and a second air groove are formed in the sealed cabin, the second air groove is located at the top of the first air groove, and a rubber ring is fixedly installed at the bottom of the second air groove. The peripheral side of the sealed cabin is sequentially sleeved with a telescopic sleeve, a spring, a baffle ring and a check ring from top to bottom, a connecting seat is arranged at the top of the sealed cabin, three limiting holes are formed in the bottom of the connecting seat, first ball pins are fixedly installed at the positions, located in the three limiting holes, of the top of the sealed cabin, and a connecting plug is fixedly installed at the position, located in the second air groove, of the bottom of the connecting seat; the limiting assembly is located in the sealed cabin and used for limiting the connecting plug; according to the utility model, personnel can conveniently mount and dismount the sealed cabin, the mounting and dismounting mode is simple and convenient, and the personnel do not need to use any tool when mounting and dismounting the sealed cabin, so that the mounting and dismounting efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of quick-cut positioning suction nozzles, and particularly relates to quick-cut positioning suction nozzles. Background Technology

[0002] In the field of industrial automation production, the nozzle head, as a key component for material picking and positioning, is widely used in equipment such as pick-and-place machines, semiconductor packaging equipment, and logistics sorting robots. The function of the nozzle head depends on its reliable connection with the main body of the equipment. However, in the actual production process, due to changes in material type, equipment maintenance, or nozzle head wear, it is necessary to frequently install and disassemble the nozzle head. For example, in the electronic component mounting process, different specifications of chips require different models of nozzle heads, and the nozzle head needs to be replaced every time production changes.

[0003] However, existing nozzle installation and disassembly methods have significant drawbacks. Traditional structures typically employ tool-assisted connection methods such as screw fastening and snap-fit ​​joints. Operators must use screwdrivers, tweezers, and other tools to screw in and out the threads, or use special clamps to press and rotate the snap-fit ​​structure. These methods are not only cumbersome and time-consuming (usually 3-5 minutes) per change, but also carry risks such as tool slippage leading to scratches on the nozzle surface and stripped threads, affecting equipment positioning accuracy and production yield. Especially in automated production lines operating continuously 24 hours a day, frequent tool-dependent changes lead to extended equipment downtime, severely hindering production efficiency improvements. Therefore, we propose a quick-cut positioning nozzle head. Utility Model Content

[0004] The purpose of this invention is to provide a quick-cut positioning suction nozzle to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a quick-cut positioning suction nozzle, comprising:

[0006] The sealed chamber has an air groove 1 and an air groove 2 inside, with the air groove 2 located at the top of the air groove 1. A rubber ring is fixedly installed at the bottom of the air groove 2. A telescopic sleeve, a spring, a retaining ring, and a retaining ring are sequentially fitted around the periphery of the sealed chamber from top to bottom. A connecting seat is provided at the top of the sealed chamber. Three limiting holes are provided at the bottom of the connecting seat. A ball head pin is fixedly installed at the top of the sealed chamber and in each of the three limiting holes. A plug is fixedly installed at the bottom of the connecting seat and in the air groove 2.

[0007] A limiting assembly, located within the sealed chamber, is used to limit the position of the connector;

[0008] The mounting base is fixedly installed on the top of the connecting base. A suction head is fixedly installed on the top of the mounting base. Threaded holes are opened on the connecting base at its four corners. Three positioning holes are opened at the bottom of the sealing chamber. Two ball-head pins are fixedly installed at the bottom of the sealing chamber.

[0009] In this technical solution, when it is necessary to remove the sealing chamber from the connecting seat, the operator can move the telescopic sleeve downwards. The downward movement of the telescopic sleeve will compress the spring and retract it until the lower end of the telescopic sleeve moves out of the periphery of the limiting component. At this time, the limiting component can be released, and the operator can move the sealing chamber downwards. At this time, the limiting component can release the limiting of the connector, and the operator can remove the sealing chamber from the connector. Subsequently, under the action of the spring's rebound force, the spring will compress the telescopic sleeve upwards, thereby causing the telescopic sleeve to return to its original position. This ensures that the operator can easily remove the sealing chamber from the connecting seat, and the disassembly method is simple and convenient, ensuring that the operator does not need to use any tools when disassembling the sealing chamber, thereby improving the efficiency of disassembly.

[0010] During installation, personnel can move the telescopic sleeve downwards. This downward movement compresses the spring, causing it to contract until the lower end of the telescopic sleeve moves out of the three positioning rods. At this point, the limiting component can be released, and personnel can move the sealing chamber upwards until the connector is inserted into air groove two, with the bottom end of the connector resting against the rubber ring. Then, the telescopic sleeve is released. Under the spring's rebound force, the spring compresses the telescopic sleeve upwards, which, through the limiting component, limits the connector, thus fixing the sealing chamber onto the connecting seat. Simultaneously, the inner wall of the lower end of the telescopic sleeve always rests against the other end of the three positioning rods, thus limiting their movement. Furthermore, the rubber ring seal prevents air leakage from air groove one and air groove two, ensuring easy installation of the sealing chamber onto the connecting seat. The installation method is simple and quick, requiring no installation tools, thus accelerating installation efficiency and post-production assembly.

[0011] In the above technical solution, the limiting component further includes:

[0012] The limiting groove is formed on the periphery of the connector. Three sliding grooves are formed inside the sealed chamber and on the periphery of the connector. Positioning rods are slidably installed in each of the three sliding grooves, and one end of each of the three positioning rods extends into the limiting groove.

[0013] In this technical solution, when the sealing chamber needs to be removed from the connecting seat, the operator can move the telescopic sleeve downwards. The downward movement of the telescopic sleeve compresses the spring, causing it to contract until the lower end of the telescopic sleeve moves out of the periphery of the three positioning rods. At this point, the three positioning rods are released from their limiting positions, and the operator can move the sealing chamber downwards. The inner wall of the limiting groove then compresses the three positioning rods, causing them to move away from the center of the sealing chamber until one end of each positioning rod moves out of the limiting groove. At this point, the three positioning rods release their limiting positions on the connector, allowing the operator to remove the sealing chamber from the connector. Subsequently, under the spring's rebound force, the spring compresses the telescopic sleeve upwards, causing it to return to its original position. This ensures that the operator can easily remove the sealing chamber from the connecting seat, and the disassembly method is simple and convenient, ensuring that no tools are needed when disassembling the sealing chamber, thus improving disassembly efficiency.

[0014] In the above technical solution, furthermore, the other ends of the three positioning rods abut against the inner wall of the telescopic sleeve, the three positioning rods are distributed in a ring with equal spacing, and one end of the positioning rod is inserted into the limiting groove.

[0015] In this technical solution, the telescopic sleeve is ensured to limit the three positioning rods, ensuring that the force on the three positioning rods is uniform, and ensuring that one end of the positioning rod can be inserted into the limiting groove.

[0016] In the above technical solution, the telescopic sleeve is slidably connected to the sealed chamber, and the two ends of the spring abut against the retaining ring and the telescopic sleeve respectively, with the retaining ring slidably connected to the sealed chamber.

[0017] In this technical solution, it is ensured that the telescopic sleeve can slide normally on the sealed chamber, the spring structure is stable, and the retaining ring can slide normally on the sealed chamber.

[0018] In the above technical solution, the ball head pin one is further engaged with the limiting hole, the plug is engaged with the air groove two, and the bottom end of the plug rests against the rubber ring.

[0019] In this technical solution, it is ensured that the ball head pin can be inserted into the limiting hole and the connector can be inserted into the air groove. Under the sealing effect of the rubber ring, air leakage between the air groove and the air groove can be avoided.

[0020] Furthermore, in the above technical solution, the mounting base, connecting base, plug and nozzle are integrally formed.

[0021] In this technical solution, the structural stability of the mounting base, connector, plug, and nozzle head is ensured.

[0022] In the above technical solution, the top diameter of the telescopic sleeve is larger than the bottom diameter of the telescopic sleeve.

[0023] In this technical solution, the structural stability of the telescopic sleeve is ensured.

[0024] The beneficial effects of this utility model are:

[0025] This quick-cut positioning nozzle, through the setting of limiting components, ensures that personnel can easily install and disassemble the sealing chamber through the cooperation of the limiting components, sealing chamber, connecting seat, telescopic sleeve, spring and plug. The installation and disassembly method is simple and convenient, ensuring that personnel do not need to use any tools when installing and disassembling the sealing chamber, thereby improving the efficiency of installation and disassembly. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the exploded structure of the connecting seat in this utility model;

[0028] Figure 3 This is a schematic diagram of the regional structure of the connecting seat in this utility model;

[0029] Figure 4 This is a detailed structural diagram of the internal structure of the sealed chamber in this utility model;

[0030] Figure 5 This is a cross-sectional structural diagram of the sealed chamber in this utility model;

[0031] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0032] Figure 7 This is a schematic diagram of the regional structure of the positioning hole in this utility model;

[0033] Figure 8 This is a schematic diagram of the regional structure of the air tank two in this utility model;

[0034] Figure 9 This is a schematic diagram of the regional structure of the sliding groove in this utility model.

[0035] The markings in the diagram are as follows:

[0036] 1. Sealed chamber; 2. Air groove one; 3. Air groove two; 4. Rubber ring; 5. Retaining ring; 6. Retaining ring; 7. Telescopic sleeve; 8. Spring; 9. Ball head pin one; 10. Connecting seat; 11. Limiting hole; 12. Plug; 13. Limiting groove; 14. Sliding groove; 15. Positioning rod; 16. Mounting seat; 17. Threaded hole; 18. Suction nozzle head; 19. Ball head pin two; 20. Positioning hole. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0038] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0039] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, without limiting the number of objects; for example, the first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0040] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0041] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0042] Example 1:

[0043] Please see Figure 1 - Figure 9 As shown, this embodiment provides a quick-cut positioning suction nozzle, including:

[0044] The sealed chamber 1 has an air groove 2 and an air groove 3 inside, with the air groove 3 located at the top of the air groove 2. A rubber ring 4 is fixedly installed at the bottom of the air groove 3. The periphery of the sealed chamber 1 is fitted with a telescopic sleeve 7, a spring 8, a retaining ring 6 and a retaining ring 5 from top to bottom. The top of the sealed chamber 1 is provided with a connecting seat 10. The bottom of the connecting seat 10 has three limiting holes 11. A ball head pin 9 is fixedly installed at the top of the sealed chamber 1 and in each of the three limiting holes 11. A plug connector 12 is fixedly installed at the bottom of the connecting seat 10 and in the air groove 3.

[0045] A limiting component is located inside the sealed chamber 1 and is used to limit the insertion connector 12;

[0046] Mounting base 16 is fixedly mounted on the top of connecting base 10. A suction head 18 is fixedly mounted on the top of mounting base 16. Threaded holes 17 are opened on the connecting base 10 at its four corners. Three positioning holes 20 are opened at the bottom of sealing chamber 1. Ball head pins 19 are fixedly mounted at the bottom of sealing chamber 1.

[0047] In use, when it is necessary to remove the sealing chamber 1 from the connecting seat 10, the operator can move the telescopic sleeve 7 downwards. The downward movement of the telescopic sleeve 7 will compress the spring 8 and retract it until the lower end of the telescopic sleeve 7 moves out of the periphery of the limiting component. At this time, the limiting component can be released, and the operator can move the sealing chamber 1 downwards. At this time, the limiting component can release the limiting of the plug 12, and the operator can remove the sealing chamber 1 from the plug 12. Subsequently, under the action of the spring 8's rebound force, the spring 8 will compress the telescopic sleeve 7 and move it upwards, thereby causing the telescopic sleeve 7 to return to its original position. This ensures that the operator can easily remove the sealing chamber 1 from the connecting seat 10, and the disassembly method is simple and convenient. It ensures that the operator does not need to use any tools when disassembling the sealing chamber 1, thereby improving the efficiency of disassembly.

[0048] During installation, personnel can move the telescopic sleeve 7 downwards. This downward movement compresses the spring 8, causing it to contract until the lower end of the telescopic sleeve 7 moves out from the periphery of the three positioning rods 15. At this point, the limiting component can be released, and personnel can move the sealing chamber 1 upwards until the connector 12 is inserted into the second air groove 3, with the bottom end of the connector 12 resting against the rubber ring 4. Then, the telescopic sleeve 7 is released. Under the rebound force of the spring 8, the spring 8 compresses the telescopic sleeve 7 upwards. This upward movement of the telescopic sleeve 7 limits the connector 12 via the limiting component, thus fixing the sealing chamber 1 onto the connecting seat 10. Simultaneously, the inner wall of the lower end of the telescopic sleeve 7 always rests against the other end of the three positioning rods 15, thus limiting the three positioning rods 15. Furthermore, the sealing effect of the rubber ring 4 prevents air leakage from the first air groove 2 and the second air groove 3, ensuring easy installation of the sealing chamber 1 onto the connecting seat 10. The installation method is simple and quick, requiring no installation tools, thus accelerating the installation efficiency and consequently speeding up post-production assembly.

[0049] Example 2:

[0050] This embodiment provides a quick-cut positioning suction nozzle, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including a limiting component:

[0051] The limiting groove 13 is formed on the periphery of the plug 12. Three sliding grooves 14 are formed inside the sealed chamber 1 and on the periphery of the plug 12. Positioning rods 15 are slidably installed in each of the three sliding grooves 14, and one end of each of the three positioning rods 15 extends into the limiting groove 13.

[0052] When the sealing chamber 1 needs to be removed from the connecting seat 10, the operator can move the telescopic sleeve 7 downwards. The downward movement of the telescopic sleeve 7 will compress the spring 8 and retract it until the lower end of the telescopic sleeve 7 moves out of the periphery of the three positioning rods 15. At this time, the three positioning rods 15 can be released from their limits, and the operator can move the sealing chamber 1 downwards. At this time, the inner wall of the limiting groove 13 will compress the three positioning rods 15 and move them away from the center of the sealing chamber 1 until one end of the three positioning rods 15 moves out of the limiting groove 13. At this time, the three positioning rods 15 can release the limit on the connector 12, and the operator can remove the sealing chamber 1 from the connector 12. Subsequently, under the action of the spring 8's rebound force, the spring 8 will compress the telescopic sleeve 7 and move it upwards, thereby resetting the telescopic sleeve 7. This ensures that the operator can easily remove the sealing chamber 1 from the connecting seat 10, and the disassembly method is simple and convenient, ensuring that the operator does not need to use any tools when disassembling the sealing chamber 1, thereby improving the efficiency of disassembly.

[0053] Example 3:

[0054] This embodiment provides a quick-cut positioning nozzle head, which, in addition to the technical solution of the above embodiment, also has the following technical features: the other ends of the three positioning rods 15 are all abutted against the inner wall of the telescopic sleeve 7, the three positioning rods 15 are distributed in a ring with equal spacing, and one end of the positioning rod 15 is inserted into the limiting groove 13.

[0055] Specifically, the telescopic sleeve 7 is designed to limit the movement of the three positioning rods 15, ensure that the force on the three positioning rods 15 is uniform, and ensure that one end of the positioning rod 15 can be inserted into the limiting groove 13.

[0056] Example 4:

[0057] This embodiment provides a quick-cut positioning suction head, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the telescopic sleeve 7 is slidably connected to the sealing chamber 1, and the two ends of the spring 8 abut against the retaining ring 6 and the telescopic sleeve 7 respectively, with the retaining ring 6 slidably connected to the sealing chamber 1.

[0058] Among these measures, it is ensured that the telescopic sleeve 7 can slide normally on the sealed chamber 1, the structure of the spring 8 is stable, and the retaining ring 6 can slide normally on the sealed chamber 1.

[0059] Example 5:

[0060] This embodiment provides a quick-cut positioning suction head, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the ball head pin 9 is inserted into the limiting hole 11, the plug 12 is inserted into the air groove 3, and the bottom end of the plug 12 abuts against the rubber ring 4.

[0061] Specifically, this ensures that the ball head pin 9 can be inserted into the limiting hole 11 and that the connector 12 can be inserted into the air groove 3. Under the sealing effect of the rubber ring 4, air leakage in the air groove 2 and the air groove 3 can be avoided.

[0062] Example 6:

[0063] This embodiment provides a quick-cut positioning nozzle head, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the mounting base 16, the connecting base 10, the plug connector 12, and the nozzle head 18 are integrally formed.

[0064] This ensures the structural stability of the mounting base 16, the connecting base 10, the plug 12, and the nozzle head 18.

[0065] Example 7:

[0066] This embodiment provides a quick-cut positioning suction head, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the top diameter of the telescopic sleeve 7 is larger than the bottom diameter of the telescopic sleeve 7.

[0067] Among these measures, ensuring the structural stability of the telescopic sleeve 7 is crucial.

[0068] Working principle: When it is necessary to remove the sealing chamber 1 from the connecting seat 10, the operator can move the telescopic sleeve 7 downwards. The telescopic sleeve 7 will compress the spring 8 and retract until the lower end of the telescopic sleeve 7 moves out of the periphery of the three positioning rods 15. At this time, the three positioning rods 15 can be released from their limit, and the operator can move the sealing chamber 1 downwards. At this time, the inner wall of the limiting groove 13 will compress the three positioning rods 15 and move them away from the center of the sealing chamber 1 until one end of the three positioning rods 15 moves out of the limiting groove 13. At this time, the three positioning rods 15 can release the limit on the plug 12, and the operator can remove the sealing chamber 1 from the plug 12. Then, under the action of the spring 8's rebound force, the spring 8 will compress the telescopic sleeve 7 and move it upwards, thereby making the telescopic sleeve 7 return to its original position. This ensures that the operator can easily remove the sealing chamber 1 from the connecting seat 10. The disassembly method is simple and convenient, ensuring that the operator does not need to use any tools when disassembling the sealing chamber 1, thereby improving the efficiency of disassembly.

[0069] During installation, personnel can move the telescopic sleeve 7 downwards. This downward movement compresses the spring 8, causing it to contract until the lower end of the telescopic sleeve 7 moves out from the periphery of the three positioning rods 15. At this point, the three positioning rods 15 can be released from their restraints. Personnel can then move the sealing chamber 1 upwards until the connector 12 is inserted into the air groove 3, with its bottom end resting against the rubber ring 4. Afterwards, the telescopic sleeve 7 is released. Under the rebound force of the spring 8, the spring 8 will compress the telescopic sleeve 7 upwards. This upward movement of the telescopic sleeve 7 will compress the three positioning rods 15, causing them to move closer to the center of the sealing chamber 1 until... One end of each of the three positioning rods 15 is inserted into the limiting groove 13. At this time, the three positioning rods 15 can limit the insertion joint 12, thereby fixing the sealing chamber 1 on the connecting seat 10. Meanwhile, the inner wall of the lower end of the telescopic sleeve 7 will always abut against the other end of the three positioning rods 15, thereby limiting the three positioning rods 15. Under the sealing effect of the rubber ring 4, air leakage in the air groove 1 2 and air groove 2 3 can be avoided, ensuring that it is easy for personnel to install the sealing chamber 1 on the connecting seat 10. The installation method is simple and quick, and no installation tools are required, which can speed up the installation efficiency of personnel, thereby speeding up the efficiency of post-production assembly.

[0070] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A quick-cut positioning mouthpiece, characterized in that, include: A sealed chamber (1) is provided with an air groove 1 (2) and an air groove 2 (3) inside the sealed chamber (1), and the air groove 2 (3) is located at the top of the air groove 1 (2). A rubber ring (4) is fixedly installed at the bottom of the air groove 2 (3). A telescopic sleeve (7), a spring (8), a retaining ring (6) and a retaining ring (5) are sequentially fitted on the periphery of the sealed chamber (1) from top to bottom. A connecting seat (10) is provided at the top of the sealed chamber (1). Three limiting holes (11) are provided at the bottom of the connecting seat (10). A ball head pin 1 (9) is fixedly installed at the top of the sealed chamber (1) and in the three limiting holes (11). A plug connector (12) is fixedly installed at the bottom of the connecting seat (10) and in the air groove 2 (3). A limiting component, located within the sealed chamber (1), is used to limit the insertion connector (12); Mounting base (16), the mounting base (16) is fixedly installed on the top of the connecting base (10), the top of the mounting base (16) is fixedly installed with a suction head (18), the connecting base (10) is provided with threaded holes (17) at its four corners, the bottom of the sealing chamber (1) is provided with three positioning holes (20), and the bottom of the sealing chamber (1) is fixedly installed with two ball head pins (19).

2. The quick-change positioning mouthpiece head of claim 1, wherein, The limiting component includes: The limiting groove (13) is opened on the periphery of the plug (12). Three sliding grooves (14) are opened in the sealed chamber (1) and on the periphery of the plug (12). Positioning rods (15) are slidably installed in the three sliding grooves (14). One end of the three positioning rods (15) extends into the limiting groove (13).

3. The quick-change positioning mouthpiece head of claim 2, wherein, The other ends of the three positioning rods (15) are all abutted against the inner wall of the telescopic sleeve (7). The three positioning rods (15) are distributed in a ring with equal spacing. One end of the positioning rod (15) is inserted into the limiting groove (13).

4. The quick-change positioning mouthpiece head of claim 1, wherein, The telescopic sleeve (7) is slidably connected to the sealed chamber (1), and the two ends of the spring (8) abut against the retaining ring (6) and the telescopic sleeve (7) respectively. The retaining ring (6) is slidably connected to the sealed chamber (1).

5. The quick-change positioning mouthpiece head of claim 1, wherein, The ball head pin (9) is inserted into the limiting hole (11), the plug (12) is inserted into the air groove (3), and the bottom end of the plug (12) rests on the rubber ring (4).

6. The quick-change positioning mouthpiece head of claim 1, wherein, The mounting base (16), the connecting base (10), the plug (12), and the suction head (18) are integrally formed.

7. The quick-change positioning mouthpiece head of claim 1, wherein, The top diameter of the telescopic sleeve (7) is greater than the bottom diameter of the telescopic sleeve (7).

Images