Quick-change connector and quick-change suction nozzle assembly

Abstract

The utility model relates to a quick-change connector and a quick-change suction nozzle assembly. The quick-change connector comprises an adapter block, a connecting block and a quick-change piece which are sequentially connected through an air channel, wherein the quick-change piece is connected to the connecting block in a pluggable mode; at least one elastic suction nozzle is arranged in the air passage; the connecting block comprises a first containing cavity and a second containing cavity which are communicated with each other, the second containing cavity is located on the side edge of the first containing cavity, and a telescopic elastic clamping piece is arranged in the second containing cavity. And when the quick-change piece is inserted into the first accommodating cavity, the clamping end of the elastic clamping piece convexly extends into the first accommodating cavity and clamps and fixes the quick-change piece. The clamping end part of the elastic clamping piece and the quick-change piece are clamped and fixed to form mechanical interlocking, and stable connection of the connecting block and the quick-change piece is kept; and the quick-change part can be separated only by applying a certain pulling force when being pulled out, additional tools or complex operations are not needed, and the replacement efficiency of the quick-change connector is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a quick-change connector and quick-change nozzle assembly. Background Technology

[0002] Quick-change connectors are widely used in scenarios involving modular components that require frequent tool changes. For example, in semiconductor manufacturing, nozzles, robotic arm end effectors, wafer transfer modules, and vacuum and gas delivery systems all rely on quick-change connectors for efficient switching.

[0003] Currently, quick-change couplings used in the production process still rely on manual tightening or auxiliary tools such as wrenches and clips, which increases replacement time and makes it difficult to meet the needs of high-frequency replacement. Utility Model Content

[0004] To address the aforementioned issues, this application provides a quick-change connector, comprising an adapter block, a connecting block, and a quick-change component that is pluggably connected to the connecting block, all connected in sequence by air passages.

[0005] At least one flexible suction nozzle is provided inside the airway;

[0006] The connecting block includes a first accommodating cavity and a second accommodating cavity that are interconnected. The second accommodating cavity is located on the side of the first accommodating cavity. A retractable elastic clamping member is provided inside the second accommodating cavity. The elastic clamping member includes a clamping end. When the quick-change member is inserted into the first accommodating cavity, the clamping end of the elastic clamping member protrudes into the first accommodating cavity and secures the quick-change member.

[0007] Furthermore, the quick-change component includes a groove located on its periphery, and when the quick-change component is inserted into the first receiving cavity, the clamping end of the elastic clamping component is confined within the groove.

[0008] Furthermore, the groove is an annular groove surrounding the periphery of the quick-change component.

[0009] Furthermore, the quick-connect fitting also includes a fixing member connected to the adapter block, the fixing member being used to fix the air tube and connect the air tube to the airway.

[0010] Furthermore, a sealing element is provided between the fixing member and the air passage of the adapter block.

[0011] Furthermore, the elastic nozzle includes a first elastic nozzle, which connects the air passage of the adapter block to the air passage of the connecting block.

[0012] This application also provides a quick-change nozzle assembly, which includes the quick-change connector described above. The quick-change component includes a nozzle assembly that is directly pluggable to the connecting block; or, the quick-change component includes a buffer head and a nozzle assembly connected to each other, and the buffer head is pluggable to the connecting block.

[0013] Furthermore, when the quick-change component includes a buffer head and a suction nozzle assembly, the quick-change suction nozzle assembly further includes a second elastic suction nozzle, the second elastic suction nozzle connecting the air passage of the buffer head and the air passage of the suction nozzle assembly.

[0014] Furthermore, a buffer assembly is also provided between the buffer head and the suction nozzle assembly.

[0015] Furthermore, one of the buffer head and the suction nozzle assembly is provided with a positioning pin protruding towards the other, and the other is provided with a positioning hole corresponding to the positioning pin. After the suction nozzle assembly and the buffer head are installed, the positioning pin is inserted into the positioning hole.

[0016] This application relates to a quick-change connector and quick-change nozzle assembly, comprising an adapter block, a connecting block, and a quick-change component pluggably connected to the connecting block, all connected in sequence by an air passage; at least one elastic nozzle is disposed within the air passage; the connecting block includes a first receiving cavity and a second receiving cavity that communicate with each other, the second receiving cavity being located on the side of the first receiving cavity, and a retractable elastic clamping member is disposed within the second receiving cavity; when the quick-change component is inserted into the first receiving cavity, the clamping end of the elastic clamping member protrudes into the first receiving cavity and secures the quick-change component. In this application, the clamping end of the elastic clamping member and the securing of the quick-change component form a mechanical interlock, maintaining a stable connection between the connecting block and the quick-change component; when the quick-change component is pulled out, only a certain pulling force is required to disengage it, without the need for additional tools or complex operations, significantly improving the replacement efficiency of the quick-change connector. Attached Figure Description

[0017] Figure 1 This is a first-view schematic diagram of the overall structure of the quick-change nozzle assembly of this application;

[0018] Figure 2 This is a first-person exploded view of the quick-change nozzle assembly of this application;

[0019] Figure 3 This is a second-view schematic diagram of the overall structure of the quick-change nozzle assembly of this application;

[0020] Figure 4 for Figure 3 Sectional view along the middle AA;

[0021] Figure 5 This is a third-person perspective schematic diagram of the overall structure of the quick-change nozzle assembly of this application;

[0022] Figure 6 for Figure 5 A sectional view along the middle edge BB;

[0023] Figure 7 This is a second-view exploded view of the quick-change nozzle assembly of this application.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Airway; 11. First elastic nozzle; 12. Second elastic nozzle; 2. Adapter block; 3. Connecting block; 31. First receiving cavity; 32. Second receiving cavity; 33. First elastic nozzle support; 34. Second elastic nozzle support; 35. Seal; 4. Quick-change component; 41. Buffer head; 42. Nozzle assembly; 43. Nozzle; 44. First through hole; 5. Fixing component; 51. Fixing component body; 52. Fixing component movable end; 6. Elastic clamping component; 61. First positioning pin; 62. Second positioning pin; 63. Third positioning pin; 64. First positioning hole; 65. Third receiving cavity; 66. Buffer assembly; 661. Screw; 662. Spring; 67. Groove; 71. First end; 72. Second end; 73. Third end; 74. Fourth end; 75. Fifth end; 76. Sixth end. Detailed Implementation

[0026] To gain a more detailed understanding of the features and technical content of the embodiments disclosed herein, the following description is provided in conjunction with the accompanying drawings. Figure 1-7 The implementation of the embodiments of this disclosure is described in detail. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, various details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other instances, well-known structures and apparatuses may be simplified in their depiction to simplify the drawings.

[0027] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0028] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0029] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0030] Unless otherwise stated, the term "multiple" means two or more.

[0031] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0033] To provide a better understanding of the purpose, structure, features, and functions of this application, detailed descriptions are provided below with reference to specific embodiments.

[0034] To address the aforementioned issues, this application provides a quick-change connector, comprising an adapter block 2, a connecting block 3, and a quick-change component 4 that is pluggably connected to the connecting block 3, all connected in sequence by an air passage 1.

[0035] At least one flexible suction nozzle is provided inside the airway 1.

[0036] The connecting block 3 includes a first accommodating cavity 31 and a second accommodating cavity 32 that are interconnected. The second accommodating cavity 32 is located on the side of the first accommodating cavity 31. A retractable elastic clamping member 6 is provided in the second accommodating cavity 32. The elastic clamping member 6 includes a clamping end. When the quick-change member 4 is inserted into the first accommodating cavity 31, the clamping end of the elastic clamping member 6 protrudes into the first accommodating cavity 31 and locks the quick-change member 4 in place.

[0037] The connecting block 3 has a first accommodating cavity 31 and a second accommodating cavity 32 that are interconnected. The axis of the first accommodating cavity 31 is arranged vertically to accommodate the insertion end of the quick-change piece 4. The axis of the second accommodating cavity 32 is arranged horizontally on the side of the first accommodating cavity 31 to place the elastic clamping piece 6, so that the extension and retraction direction of the elastic clamping piece 6 is perpendicular to the direction in which the quick-change piece 4 is inserted into or removed from the first accommodating cavity 31.

[0038] Quick-change parts 4 are replaceable modular components, such as nozzle assembly 42, tool head, etc.

[0039] The elastic clamping member 6 is a ball-head plunger, including a plunger housing, a ball head and an elastic member connected to each other. The plunger housing includes a first opening and an end cap that are disposed opposite to each other. The ball head and the elastic member are disposed inside the plunger housing. The elastic member abuts against the ball head and the end cap at both ends inside the plunger housing. The ball head protrudes from the first opening portion of the plunger housing and serves as the clamping end of the ball-head plunger.

[0040] After the quick-change part 4 is inserted into the first receiving cavity 31, the elastic extension and contraction of the ball head plunger internal elastic element is used to achieve the extension and contraction of the ball head, so that the ball head protrudes in the axial direction of the first receiving cavity 31 in its natural state.

[0041] In one embodiment, the quick-change connector includes two ball plungers arranged opposite each other. After the quick-change component 4 is inserted into the first receiving cavity 31, the ball plungers protrude towards each other, clamping and fixing the quick-change component 4 from two opposite directions.

[0042] The quick-change part 4 is inserted into the first receiving cavity 31 along the axial direction. During the insertion process, its outer wall contacts the ball head of the ball head plunger, and the ball head is forced to retract by the inclined surface or squeezing action. When the quick-change part 4 is installed in place, the ball head abuts against the outer wall of the quick-change part 4 under the action of the elastic element, and completes the locking.

[0043] The elastic element inside the ball plunger is elastic, allowing the quick-change piece 4 to be secured by the ball head after being inserted into the first receiving cavity 31; if a pulling force is applied to the quick-change piece 4 away from the connecting block 3, the quick-change piece 4 can be disengaged from the first receiving cavity 31. No manual tightening or auxiliary tools are required, greatly improving replacement efficiency.

[0044] Furthermore, the quick-change component 4 includes a groove 67 located on its periphery. When the quick-change component 4 is inserted into the first receiving cavity 31, the clamping end of the elastic clamping component 6 is confined within the groove 67.

[0045] The groove 67 is located around the periphery of the quick-change part 4 and is an annular groove or a partially recessed structure.

[0046] The cross-section of the groove 67 is usually U-shaped, V-shaped, or arc-shaped, depending on the actual situation.

[0047] The width of the groove 67 is adapted to the outer diameter of the clamping end of the elastic clamping member 6, ensuring that the clamping end of the elastic clamping member 6 can be smoothly inserted.

[0048] The edge of the groove 67 is a bevel or a rounded transition to reduce the frictional resistance of the clamping end of the elastic clamp 6 when it is locked in the groove 67.

[0049] After the quick-change part 4 is inserted into the first receiving cavity 31, the clamping end of the elastic clamping part 6 is automatically locked and limited to the groove 67. Applying an axial pulling force away from the connecting block 3 to the quick-change part 4 can overcome the elastic clamping force of the elastic clamping part 6, and the clamping end of the elastic clamping part 6 will exit the groove 67, thus achieving quick disassembly.

[0050] Furthermore, the groove 67 is an annular groove surrounding the periphery of the quick-change component 4.

[0051] The annular groove continuously surrounds the outer periphery of the quick-change part 4 in a 360° pattern.

[0052] When the elastic clamping member 6 is secured to the annular groove, there is no need to consider the orientation of the annular groove, achieving non-directional alignment and effectively reducing the difficulty of aligning the elastic clamping member 6 with the annular groove.

[0053] Furthermore, the quick-connect fitting also includes a fixing member 5 connected to the adapter block 2, the fixing member 5 being used to fix the air tube and connect the air tube to the airway 1.

[0054] The fixing member 5 is used to fix the gas pipe of the gas generator. The gas pipe is fixed in the middle of the fixing member 5 and connected to the gas passage 1 of the adapter block 2 to ensure that the gas in the gas generator can be smoothly transmitted through the gas pipe to the gas passage 1 in the adapter block 2, the gas passage 1 in the connecting block 3, and the gas passage 1 in the quick-change member 4.

[0055] The fixing component 5 includes a fixing component body 51 and a fixing component movable end 52 connected together. The fixing component body 51 is L-shaped. The lower end of the fixing component body 51 is connected to the upper surface of the adapter block 2. One part of the upper end of the fixing component body 51 is connected to the fixing component movable end 52, and the other part is separated from the fixing component movable end 52 to form a clamp structure. The clamp structure is C-shaped or U-shaped. The air tube is set in the middle of the clamp structure. By tightening the screw, the fixing component movable end 52 gradually approaches the upper end of the fixing component body 51 to clamp and fix the air tube.

[0056] A sealing element 35 is provided between the fixing member 5 and the air passage 1 of the adapter block 2 to ensure a complete seal between the air tube and the air passage 1 of the adapter block 2.

[0057] In one embodiment, the seal 35 is an annular sealing ring.

[0058] The annular sealing ring has a circular structure. The inner diameter of the annular sealing ring is closely matched with the outer diameter of the trachea and the inlet diameter of the airway 1 of the adapter block 2 to ensure a tight fit around the trachea or airway 1 and achieve an effective seal. The outer diameter of the annular sealing ring is determined according to the installation space between the fixing part 5 and the adapter block 2 to ensure that it will not interfere with other components after installation.

[0059] An annular sealing ring is placed between the fixing component 5 and the adapter block 2. After the fixing component 5 and the adapter block 2 are assembled, the pressure between them compresses the annular sealing ring. Under pressure, the annular sealing ring undergoes elastic deformation and fits tightly against the contact surfaces of the fixing component 5 and the adapter block 2, as well as around the air tube and airway 1, forming a continuous sealing barrier to prevent gas leakage.

[0060] The sealing ring can be made of materials such as nitrile rubber, fluororubber, silicone rubber, and polytetrafluoroethylene.

[0061] In other alternative embodiments, a first positioning pin 61 is provided between the connecting block 3, the adapter block 2 and the fixing member 5. The first positioning pin 61 passes through the adapter block 2, the upper end of the first positioning pin 61 is connected to the fixing member 5, and the lower end of the first positioning pin 61 is connected to the connecting block 3.

[0062] During the assembly process, the first locating pin 61 simultaneously positions the connecting block 3 and the fixing part 5, ensuring that the connecting block 3, the adapter block 2 and the fixing part 5 maintain an accurate relative positional relationship in space.

[0063] When maintenance or replacement of parts is required, simply pull out the first positioning pin 61 to separate the connecting block 3, the adapter block 2 and the fixing part 5, which facilitates the inspection, repair and replacement of each part and improves the maintainability of the equipment.

[0064] The elastic nozzle includes a first elastic nozzle 11, which connects the air passage 1 of the adapter block 2 to the air passage 1 of the connecting block 3.

[0065] Both the adapter block 2 and the connecting block 3 have air passages 1 in the middle. From top to bottom, the air passages 1 inside the adapter block 2 and the air passages 1 inside the connecting block 3 are connected vertically through the first elastic suction nozzle 11.

[0066] Specifically, the adapter block 2 includes a first end 71 near the connecting block 3, and the connecting block 3 includes a second end 72 and a third end 73 disposed opposite to each other. The second end 72 of the connecting block 3 is connected to the first end 71 of the adapter block 2, and the third end 73 of the connecting block 3 is connected to the quick-change component 4. The first elastic suction nozzle 11 includes a first compression end and a first connecting end that are connected to each other.

[0067] The adapter block 2 also includes a first elastic nozzle bracket 33 protruding toward the connecting block 3 at the air passage 1 position. After the adapter block 2 and the connecting block 3 are assembled, the first compression end of the first elastic nozzle 11 is connected to the air passage 1 of the second end 72 of the connecting block 3, and the first connecting end of the first elastic nozzle 11 is connected to the first elastic nozzle bracket 33.

[0068] The first elastic nozzle 11 connects the air passage 1 in the connecting block 3 with the air passage 1 in the adapter block 2, which can effectively prevent gas in the air passage 1 from leaking from the connection.

[0069] The first elastic suction nozzle 11 is an accordion suction nozzle 43, which is a multi-layered corrugated tube that is axially compressible.

[0070] This application also provides a quick-change nozzle assembly, which includes the quick-change connector described above. The quick-change component 4 includes a nozzle assembly 42, which is directly pluggable to the connecting block 3. Alternatively, the quick-change component 4 includes a buffer head 41 and a nozzle assembly 42 connected to each other, and the buffer head 41 is pluggable to the connecting block 3.

[0071] In one embodiment of the quick-change nozzle assembly provided in this application, the nozzle assembly 42 is directly pluggable to the connecting block 3. The nozzle assembly 42 is directly inserted into the first receiving cavity 31 of the connecting block 3. The clamping end of the elastic clamping member 6 protrudes in the axial direction of the first receiving cavity 31 and abuts against the nozzle assembly 42 to achieve a secure connection.

[0072] In another embodiment of the quick-change nozzle assembly provided in this application, the nozzle assembly 42 is fixed to the buffer head 41, the buffer head 41 is pluggably connected to the connecting block 3, the buffer head 41 is inserted into the first receiving cavity 31 of the connecting block 3, the clamping end of the elastic clamping member 6 protrudes in the axial direction of the first receiving cavity 31 and abuts against the buffer block to achieve a snap-fit ​​connection, thereby indirectly fixing the nozzle assembly 42 to the connecting block 3.

[0073] When the quick-change component 4 includes a buffer head 41 and a suction nozzle assembly 42, both the buffer head 41 and the suction nozzle assembly 42 are provided with an air passage 1 that is connected vertically in the middle; the quick-change suction nozzle assembly also includes a second elastic suction nozzle 12, which connects the air passage 1 of the buffer head 41 and the air passage 1 of the suction nozzle assembly 42.

[0074] The buffer head 41 includes a fourth end 74 and a fifth end 75 disposed opposite to each other. The suction nozzle assembly 42 includes a sixth end 76 close to the buffer head 41. The fourth end 74 of the buffer head 41 is connected to the third end 73 of the connecting block 3, and the fifth end 75 of the buffer head 41 is connected to the sixth end 76 of the suction nozzle assembly 42.

[0075] The second flexible suction nozzle 12 is an accordion suction nozzle 43, which is axially compressible.

[0076] The second flexible nozzle 12 includes a second compression end and a second connecting end that are interconnected.

[0077] In one embodiment, the second compression end of the second elastic nozzle 12 is connected to the air passage 1 of the fifth end 75 of the buffer head 41, and the second connection end of the second elastic nozzle 12 is connected to the air passage 1 of the sixth end 76 of the nozzle assembly 42.

[0078] The sixth end 76 of the suction nozzle assembly 42 has an air passage 1 with a second elastic suction nozzle support 34 protruding from the sixth end 76 toward the second elastic suction nozzle 12. The second connecting end of the second elastic suction nozzle 12 is sleeved on the outer periphery of the second elastic suction nozzle support 34.

[0079] The second connecting end of the second elastic nozzle 12 is press-fitted with the second elastic nozzle bracket 34 to stably fix the second connecting end of the second elastic nozzle 12 and the second elastic nozzle bracket 34.

[0080] The buffer head 41 includes a third accommodating cavity 65. After the buffer head 41 and the suction nozzle assembly 42 are installed, the second connecting end of the second elastic suction nozzle 12 is sleeved on the second elastic suction nozzle bracket 34 and simultaneously placed in the third accommodating cavity 65. The second compression end of the second elastic suction nozzle 12 is connected to the air passage 1 inside the buffer head 41 in the third accommodating cavity 65.

[0081] The second elastic suction nozzle 12 is disposed between the buffer head 41 and the suction nozzle assembly 42. It can connect the air passage 1 in the buffer head 41 with the air passage 1 in the suction nozzle assembly 42, and seal the air passage 1 at the connection between the buffer head 41 and the suction nozzle assembly 42 to prevent gas in the air passage 1 from leaking from the connection.

[0082] In addition, when the nozzle 43 of the nozzle assembly 42 adsorbs the product and generates sudden pressure, the second elastic nozzle 12 buffers the sudden pressure through its axial compressibility.

[0083] Furthermore, a buffer assembly 66 is also provided between the buffer head 41 and the suction nozzle assembly 42.

[0084] The buffer assembly 66 is disposed on the end face where the buffer head 41 and the nozzle assembly 42 contact each other, and surrounds the periphery of the airway 1, maintaining a certain distance from the outer edge of the airway 1. The buffer assembly 66 can effectively perform its buffering function without affecting the normal operation of the airway 1.

[0085] When the nozzle 43 of the nozzle assembly 42 contacts and adsorbs the product, sudden pressure may be generated due to factors such as the weight, shape or uneven surface of the product. The buffer assembly 66 undergoes elastic deformation with the sudden pressure to absorb the sudden pressure and reduce the impact of the sudden pressure on the nozzle assembly 42 and the buffer head 41.

[0086] The buffer assembly 66 includes a screw 661 and a spring 662. The screw 661 includes a head and a screw rod connected together. The screw rod passes through the buffer head 41 and is connected to the suction nozzle assembly 42. The spring 662 is sleeved on the screw rod and abuts against the head and the suction nozzle assembly 42.

[0087] The buffer assembly 66 includes a screw 661 and a spring 662. The spring 662 is sleeved on the outer periphery of the screw 661. The screw 661 has threads. After the screw and spring 662 pass through the buffer head 41, they are fixedly connected to the suction nozzle assembly 42 by the screw. The head of the screw 661 is located on one side of the buffer head 41, which makes it easy to adjust the depth of the screw screw into the suction nozzle assembly 42.

[0088] The buffer head 41 is provided with a first through hole 44 corresponding to the buffer assembly 66. The diameter of the first through hole 44 is larger than the outer diameter of the spring 662 and smaller than the outer diameter of the head of the screw 661.

[0089] When the buffer assembly 66 is installed, a spring 662 is sleeved on the outside of the screw 661. The screw and the spring 662 pass through the first through hole 44 of the buffer head 41 and are fixedly connected to the suction nozzle assembly 42. Since the diameter of the first through hole 44 is larger than the outer diameter of the spring 662, the screw with the spring 662 sleeved on it can freely penetrate into the first through hole 44 up to the sixth end 76 of the suction nozzle assembly 42, while the head of the screw 661 cannot enter the first through hole 44, resulting in a height difference between the head of the screw 661 and the upper surface of the first through hole 44.

[0090] After the buffer assembly 66 is installed, the spring 662 abuts against the head of the screw 661 and the sixth end 76 of the suction nozzle assembly 42, and the buffering effect is achieved by utilizing the height difference between the head of the screw 661 and the upper surface of the first through hole 44.

[0091] The screw 661 has a threaded structure. The depth to which the screw is screwed into the nozzle assembly 42 can adjust the distance between the head of the screw and the sixth end 76 of the nozzle assembly 42. In other words, the depth to which the screw is screwed into the nozzle assembly 42 limits the space in which the spring 662 can extend and retract.

[0092] When the screw is screwed into the spring 662 assembly deeply, the expandable space of the spring 662 decreases, and its buffering capacity may be weakened accordingly; when the screw is screwed into the spring 662 assembly shallowly, the expandable space of the spring 662 increases, and its buffering capacity may be enhanced accordingly.

[0093] The quick-change nozzle assembly includes two sets of buffer components 66, which are symmetrically arranged on opposite sides of the airway 1.

[0094] One of the buffer head 41 and the suction nozzle assembly 42 is provided with a second positioning pin 62 protruding towards the other, and the other is provided with a first positioning hole 64 corresponding to the positioning pin. When the suction nozzle assembly 42 and the buffer head 41 are installed, the second positioning pin 62 is inserted into the first positioning hole 64.

[0095] In one embodiment, the second positioning pin 62 is a columnar structure that protrudes from the nozzle assembly 42 toward the fifth end 75 of the buffer head 41. The first positioning hole 64 is disposed in the buffer head 41. The second positioning pin 62 is adapted to the size of the first positioning hole 64 to ensure that the second positioning pin 62 can be smoothly inserted into the first positioning hole 64.

[0096] When the nozzle assembly 42 is installed with the buffer head 41, the second positioning pin 62 is precisely inserted into the corresponding first positioning hole 64, forming an insertion connection. This not only ensures accurate alignment between the buffer head 41 and the nozzle assembly 42, but also provides additional stability, preventing relative displacement between the two during installation or use.

[0097] The end of the second positioning pin 62 that first contacts the first positioning hole 64 is also provided with a guide structure, which is a conical structure or a frustum-shaped structure with an inclined surface.

[0098] When the end of the second positioning pin 62 with the guide structure contacts the first positioning hole 64, the inclined surface of the guide structure will contact the edge of the first positioning hole 64 and gradually guide the second positioning pin 62 into the first positioning hole 64. The second positioning pin 62 and the first positioning hole 64 cooperate to install and fix the pin, which significantly improves the installation efficiency of the suction nozzle assembly 42 and the buffer head 41 and reduces the difficulty of operation.

[0099] The specific location and number of the second positioning pin 62 and the first positioning hole 64 are not specifically limited in this application.

[0100] In one embodiment, a third positioning pin 63 is provided between the connecting block 3 and the buffer head 41.

[0101] The third positioning pin 63 is a columnar structure that protrudes from the third end 73 of the connecting block 3 toward the fourth end 74 of the buffer head 41, and the first positioning hole 64 passes through the fourth end 74 to the fifth end 75 of the buffer head 41.

[0102] After the connecting block 3 and the buffer head 41 are installed, the third positioning pin 63 and the second positioning pin 62 are partially located in the first positioning hole 64.

[0103] The second positioning pin 62 and the third positioning pin 63 are inserted into the first positioning hole 64 from different directions. When fixing the nozzle assembly 42, the buffer head 41 and the connecting block 3, they share the first positioning hole 64 of the buffer head 41, which saves space and simplifies the structure.

[0104] This application relates to a quick-change connector and quick-change nozzle assembly, comprising an adapter block 2, a connecting block 3, and a quick-change component 4 detachably connected to the connecting block 3, all sequentially connected to an air passage 1. At least one elastic nozzle is disposed within the air passage 1. The connecting block 3 includes a first receiving cavity 31 and a second receiving cavity 32 that communicate with each other. The second receiving cavity 32 is located on the side of the first receiving cavity 31, and a retractable elastic clamping member 6 is disposed within the second receiving cavity 32. When the quick-change component 4 is inserted into the first receiving cavity 31, the clamping end of the elastic clamping member 6 protrudes into the first receiving cavity 31 and secures the quick-change component 4. In this application, the clamping end of the elastic clamping member 6 and the securing of the quick-change component 4 form a mechanical interlock, maintaining a stable connection between the connecting block 3 and the quick-change component 4. When the quick-change component 4 is pulled out, only a certain pulling force is required to disengage it, without the need for additional tools or complex operations, significantly improving the replacement efficiency of the quick-change connector.

[0105] This application has been described with reference to the above-mentioned embodiments; however, the above embodiments are merely examples for implementing this application. It must be noted that the disclosed embodiments do not limit the scope of this application. On the contrary, any modifications and refinements made without departing from the spirit and scope of this application are within the scope of patent protection of this application.

Claims

1. A quick-connect coupling, characterized in that, It includes an adapter block (2), a connecting block (3), and a quick-change component (4) that can be plugged into the connecting block (3) in sequence, which are connected to the air passage (1); At least one flexible suction nozzle (43) is provided inside the airway (1); The connecting block (3) includes a first accommodating cavity (31) and a second accommodating cavity (32) that are interconnected. The second accommodating cavity (32) is located on the side of the first accommodating cavity (31). A retractable elastic clamping member (6) is provided in the second accommodating cavity (32). The elastic clamping member (6) includes a clamping end. When the quick-change member (4) is inserted into the first accommodating cavity (31), the clamping end of the elastic clamping member (6) protrudes into the first accommodating cavity (31) and locks the quick-change member (4).

2. The quick-connect coupling according to claim 1, characterized in that, The quick-change component (4) includes a groove (67) on its periphery. When the quick-change component (4) is inserted into the first receiving cavity (31), the clamping end of the elastic clamping component (6) is confined within the groove (67).

3. The quick-connect coupling according to claim 2, characterized in that, The groove (67) is an annular groove that surrounds the periphery of the quick-change component (4).

4. The quick-connect coupling according to claim 1, characterized in that, The quick-connector also includes a fixing member (5) connected to the adapter block (2), the fixing member (5) being used to fix the air tube and connect the air tube to the airway (1).

5. The quick-connect coupling according to claim 4, characterized in that, A sealing element (35) is provided between the fixing member (5) and the air passage (1) of the adapter block (2).

6. The quick-connect coupling according to claim 1, characterized in that, The elastic nozzle includes a first elastic nozzle (11), which connects the air passage (1) of the adapter block (2) to the air passage (1) of the connecting block (3).

7. A quick-change nozzle assembly, characterized in that, The quick-change nozzle assembly includes the quick-change connector as described in any one of claims 1-6, wherein the quick-change component (4) includes a nozzle assembly (42), which is directly pluggable to the connecting block (3); or, the quick-change component (4) includes a buffer head (41) and a nozzle assembly (42) connected to each other, wherein the buffer head (41) is pluggable to the connecting block (3).

8. The quick-change nozzle assembly according to claim 7, characterized in that, When the quick-change component (4) includes a buffer head (41) and a suction nozzle assembly (42), the quick-change suction nozzle assembly further includes a second elastic suction nozzle (12), which connects the air passage (1) of the buffer head (41) and the air passage (1) of the suction nozzle assembly (42).

9. The quick-change nozzle assembly according to claim 8, characterized in that, A buffer assembly (66) is also provided between the buffer head (41) and the suction nozzle assembly (42).

10. The quick-change nozzle assembly according to claim 7, characterized in that, One of the buffer head (41) and the suction nozzle assembly (42) is provided with a positioning pin protruding towards the other, and the other is provided with a positioning hole corresponding to the positioning pin. After the suction nozzle assembly (42) and the buffer head (41) are installed, the positioning pin is inserted into the positioning hole.

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