A manual quick-change device for hollow vent tubes

Abstract

This utility model provides a manual quick-change device for hollow vent pipes, including a lower disassembly piece, an upper disassembly piece, a rotating plate, and a self-locking mechanism. The rotating plate is rotatably disposed between the lower and upper disassembly pieces, which are detachably connected via the rotating plate and the self-locking mechanism. The rotating plate is mounted on the upper disassembly piece, and a first slot is provided on the side of the rotating plate. A second slot is provided on the lower disassembly piece corresponding to the first slot, and the self-locking mechanism is installed in the second slot. In the self-locking state, the self-locking mechanism extends from the second slot to the first slot. A guide groove is provided on the end face of the rotating plate, and a fixing pin is provided on the lower disassembly piece. The lower and upper disassembly pieces are positioned by the fixing pin and the guide groove. The beneficial effects of this utility model are: 1. Developing a tool-free operation structure: using radial engagement with spring steel sheets; 2. Adopting a wear-resistant compensation design: maintaining high-precision fit during frequent assembly and disassembly; 3. Integrating a self-locking mechanism to improve connection reliability.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and in particular to a manual quick-change device for a hollow vent pipe. Background Technology

[0002] In modern industrial production, the demand for rapid assembly and disassembly of equipment is increasing. For example, automated production lines require frequent changes of tooling and fixtures. Traditional assembly and disassembly methods (such as threaded fastening and pin fixing) suffer from low efficiency, rapid wear, and easy loosening, making it difficult to meet the modern industrial demands for efficient, reliable, and safe assembly and disassembly. Currently, mainstream rapid assembly and disassembly technologies include:

[0003] 1. Threaded fastener + spring washer: The connection is achieved through threaded engagement, and the spring washer provides an anti-loosening function (refer to patent CN106402103B).

[0004] Disadvantages: Requires special tools to operate, and repeated assembly and disassembly can cause thread wear and reduce accuracy.

[0005] 2. Snap-on connection: Quick locking is achieved using elastic snap-on mechanisms (see patent: CN205521181U).

[0006] Disadvantages: The buckle is prone to fatigue and breakage, lacks a self-locking mechanism, and is easy to loosen under vibration conditions.

[0007] 3. Hydraulic / pneumatic quick-connect coupling: Enables quick connection through hydraulic or pneumatic drive (refer to patent CN218593032U).

[0008] Disadvantages: Complex structure, high cost, dependence on external power source, and difficult maintenance.

[0009] None of the above technologies have fully solved the problem of balancing operational efficiency, accuracy maintenance, and safety. Summary of the Invention

[0010] To address the problems in the prior art, this utility model provides a manual quick-change device for a hollow vent pipe, comprising a lower detachable component, an upper detachable component, a rotating plate, and a self-locking mechanism. The rotating plate is rotatably disposed between the lower detachable component and the upper detachable component, and the lower detachable component and the upper detachable component are detachably connected via the rotating plate and the self-locking mechanism. The rotating plate is mounted on the upper detachable component, and a first slot is provided on the side of the rotating plate. A second slot is provided on the lower detachable component corresponding to the first slot, and the self-locking mechanism is installed in the second slot. In the self-locking state, the self-locking mechanism extends from the second slot to the first slot. A guide groove is provided on the end face of the rotating plate, and a fixing pin is provided on the lower detachable component. The fixing pin is installed in the guide groove, and the lower detachable component and the upper detachable component are positioned by the fixing pin and the guide groove.

[0011] As a further improvement of this utility model, the self-locking mechanism is a self-locking spring clip, which is fastened in the second slot by its fixing base. In the self-locking state, the elastic arm of the self-locking spring clip extends outward from the opening end of the second slot and is embedded in the first slot.

[0012] As a further improvement of this utility model, the end face of the lower disassembly component is provided with a first notch, a cover plate is installed on the top of the first notch, and a second notch is provided on the side of the cover plate. The position of the second notch corresponds to the first slot and the second slot. In the self-locking state, the elastic arm of the self-locking spring clip passes through the second notch on the cover plate and is embedded in the first slot.

[0013] As a further improvement of this utility model, both the upper and lower disassembly parts are axially through hollow annular structures. The hollow edge of the upper disassembly part is provided with an annular boss along the circumferential direction. A hollow rotating plate that can rotate around the annular boss is fitted on the annular boss. The rotating plate is fixed to the upper disassembly part by a fixing pressure member.

[0014] As a further improvement of this utility model, the end face of the lower disassembly piece is provided with a plurality of fixing pins, one end of the fixing pin is vertically fixed to the lower disassembly piece, and the other end of the fixing pin extends to engage with the guide groove of the upper disassembly piece.

[0015] As a further improvement of this utility model, the guide groove includes an elongated slot and a circular hole communicating with the elongated slot, wherein the diameter of the circular hole is greater than the width of the elongated slot.

[0016] As a further improvement of this utility model, the rotating plate is also provided with a limiting groove, and the upper disassembly piece corresponding to the position of the limiting groove is provided with a limiting pin. The free end of the limiting pin is inserted into the limiting groove, and the limiting pin is used to limit the rotation angle of the rotating plate.

[0017] As a further improvement of this utility model, a rotating handle is provided on the side of the rotating plate, and the rotating handle is used to drive the rotating plate to rotate.

[0018] As a further improvement of this utility model, the lower detachment is provided with a plurality of circular holes, each of which is equipped with a rotatable positioning bead.

[0019] The beneficial effects of this utility model are: 1. Development of a tool-free operating structure: using radial locking with spring steel sheets; 2. Adoption of wear-resistant compensation design: maintaining high-precision fit during frequent assembly and disassembly; 3. Integration of a self-locking mechanism to improve connection reliability; 4. Quick locking mechanism: a unique quick locking mechanism that can complete assembly and disassembly operations in seconds, significantly shortening operation time; 5. Modular design: achieving personalized customization through standardized module combinations to adapt to different equipment needs and enhance flexibility. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the manual quick-change device for the hollow vent pipe of this utility model;

[0021] Figure 2 This is a structural diagram of the disassembly parts of the manual quick-change device for the hollow vent pipe of this utility model;

[0022] Figure 3 This is a structural diagram of the lower disassembly component of the manual quick-change device for the hollow vent pipe of this utility model;

[0023] Figure 4 This is a structural diagram of the hollow vent pipe rotating plate of this utility model;

[0024] Figure 5 This is an exploded view of the manual quick-change device for the hollow vent pipe of this utility model;

[0025] Figure 6 This is an installation effect diagram of the manual quick-change device for hollow vent pipe of this utility model;

[0026] Figure 7 This is a disassembly effect diagram of the manual quick-change device for the hollow vent pipe of this utility model;

[0027] Attached diagram descriptions: 1-Lower detachment, 2-Positioning bead, 3-Fixing pressure piece, 4-Self-locking spring clip, 5-Cover plate, 6-Rotating plate, 7-Limiting pin, 8-Fixing pin, 9-Upper detachment, 10-Annular boss 10, 11-First slot, 12-Second slot, 13-Long slot, 14-Round hole, 15-Limiting slot, 16-Rotating handle, 17-Hollow rotating platform, 18-Nose mounting plate; Detailed Implementation

[0028] This utility model discloses a manual quick-change device for a hollow vent pipe, including a lower disassembly piece 1, an upper disassembly piece 9, a rotating plate 6, and a self-locking mechanism. The rotating plate 6 is rotatably disposed between the lower disassembly piece 1 and the upper disassembly piece 9, and the lower disassembly piece 1 and the upper disassembly piece 9 are detachably connected by the rotating plate 6 and the self-locking mechanism. The rotating plate 6 is installed on the upper disassembly piece 9, and a first slot 11 is provided on the side of the rotating plate 6. A second slot 12 is provided on the lower disassembly piece 1 corresponding to the position of the first slot 11. The self-locking mechanism is installed in the second slot 12. In the self-locking state, the self-locking mechanism extends from the second slot 12 to the first slot 11. A guide groove is provided on the end face of the rotating plate 6, and a fixing pin 8 is provided on the lower disassembly piece 1. The lower fixing pin 8 is installed in the guide groove, and the lower disassembly piece 1 and the upper disassembly piece 9 are positioned by the fixing pin 8 and the guide groove.

[0029] like Figure 1-4 As shown, this utility model discloses a manual quick-change device for a hollow vent tube, including an upper disassembly piece 9 and a lower disassembly piece 1 installed integrally with the upper disassembly piece 9. Both the upper disassembly piece 9 and the lower disassembly piece 1 are axially penetrating hollow annular structures. The hollow edge of the upper disassembly piece 9 is provided with an annular boss 10 along the circumferential direction, and the protrusion direction of the boss 10 is axial. A hollow rotating plate 6 is fitted onto the annular boss 10 and fixed to the upper disassembly piece 9 by a fixing clamp 3. The rotating plate 6 rotates along the central axis of the upper disassembly piece 9. Three guide grooves are evenly provided on the end face of the rotating plate 6, and a first slot 11 is provided on the outer side of the end face of the rotating plate 6. The end face of the lower disassembly piece 1 is provided with three fixing pins 8, one end of each fixing pin 8 being vertically fixed to the lower disassembly piece 1. On the lower disassembly piece 1, the other end extends to engage with the guide groove of the upper disassembly piece 9. When the upper disassembly piece 9 and the lower disassembly piece 1 are aligned and installed, the extended end of the fixing pin 8 is inserted into the guide groove. The end face of the lower disassembly piece 1 is provided with a first notch. A cover plate 5 is installed on the top of the first notch. A second slot 12 is provided at the first notch. The second slot 12 is arranged axially. A second notch is provided on the side of the cover plate 5. The position of the second notch corresponds to the second slot 12. The self-locking spring clip 4 is fastened in the second slot 12 through its fixing base. Its elastic clip arm extends outward from the opening end of the second slot 12 and passes through the second notch of the cover plate 5. Finally, the locking structure at the end of the elastic clip arm 4 is embedded in the first slot 11 to complete the self-locking.

[0030] The guide groove consists of an elongated slot 13 and a circular hole 14 communicating with the elongated slot 13. The diameter of the circular hole 14 is larger than the width of the elongated slot 13 and slightly larger than the diameter of the fixing pin 8. One end of the fixing pin 8 is installed on the lower disassembly part 1, and the other end of the fixing pin 8 extends into the circular hole 14. Pushing the rotating plate 6 can rotate the elongated slot 13 to the position of the circular hole 14, at which time the fixing pin 8 can be locked.

[0031] The rotating plate 6 is also provided with an arc-shaped limiting groove 15, the center of which is coaxial with the rotation center of the rotating plate 6. The upper disassembly piece 9 is provided with a cylindrical limiting pin 7, which extends perpendicularly to the plane of the rotating plate 6 and its free end is inserted into the limiting groove 15. When the rotating plate 6 rotates around its axis, the limiting pin 7 slides along the arc in the limiting groove 15 until it contacts the end walls of the limiting groove 15. The central angle of the limiting groove 15 determines the maximum allowable rotation angle of the rotating plate 6. The contact between the limiting pin 7 and the end walls forms a mechanical hard limit, preventing further rotation. The limiting groove 15 and the limiting pin 7 work together to limit the rotation angle of the rotating plate 6.

[0032] A rotating handle 16 is provided on the side of the rotating plate 6, which is used to push the rotating plate 6 to rotate.

[0033] The lower disassembly piece 1 has three circular holes, each containing a rotatable positioning bead 2. After the upper disassembly piece 9 is locked to the lower disassembly piece 1, the positioning bead 2 and the upper disassembly piece 9 form a three-point contact support. The degree of locking can be adjusted by twisting the positioning bead 2 with a special tool to ensure the stability of the manual quick-change device for the hollow vent pipe of this utility model.

[0034] This utility model's manual quick-change device for hollow vent pipes has a simple structure, low production cost, and is easy to install without tools. It employs a rotating plate 6 combined with spring clips for fixing, effectively preventing loosening. The addition of top beads (positioning beads 2) to the upper and lower components (upper disassembly piece 9 and lower disassembly piece 1) provides structural compensation while ensuring installation accuracy, significantly reducing installation losses.

[0035] The installation and disassembly method of the manual quick-change device for hollow vent tubes of this utility model:

[0036] Installation: Insert the component (align the fixing pin 8 on the lower part 1 with the round hole 14 on the rotating plate 6) → push the rotating handle 16 on the rotating plate 6 until the self-locking spring clip 4 enters the first slot 11 on the rotating plate 6, the spring is released from the compressed state to release kinetic energy, and automatically enters the steady state to lock.

[0037] Disassembly: Press the self-locking spring clip 4 → push the rotating handle 16 on the rotating plate 6 → remove the part (when the fixing pin 8 on the lower disassembly part 1 is aligned with the round hole 14 on the rotating plate 6, remove the lower disassembly part 1).

[0038] like Figure 5As shown, in the upper part (upper disassembly part 9) of the manual quick-change device for hollow vent pipe of this utility model, a limiting groove 14 and a limiting pin 15 are provided to limit the rotation angle of the rotating plate 6. The fixing pressure part 3 can block the rotating plate 6 to prevent it from loosening. In the lower part of the manual quick-change device for hollow vent pipe of this utility model, the fixing pin 8 and the cover plate 5 are tightened onto the upper disassembly part 9 by screws. The cover plate 5 serves to lock the self-locking spring clip 4, while the positioning bead 2 is used to adjust the tightness of the tightening assembly.

[0039] During installation, the manual quick-change device for hollow vent pipes of this utility model involves inserting three fixing pins 8 from the lower part (lower detachable part 1) into three round holes 14 in the upper part (upper detachable part 9) to restrict the relative rotation of the upper and lower parts. By pushing the rotating handle 16 on the rotating plate 6, the elongated slot 13 on the rotating plate 6 rotates to the position of the round hole 14, locking the fixing pins 8 and bringing the upper and lower parts into contact. Simultaneously, the self-locking spring clip 4 enters the first slot 11 on the rotating plate 6, and then the spring releases its kinetic energy to press against the self-locking spring clip 4, locking the upper and lower parts. During this process, the limiting pin 15 can limit the rotation angle of the rotating plate 6. After the upper and lower parts are locked, the degree of locking can be adjusted by twisting the positioning bead 2 to ensure the stability of the manual quick-change device for hollow vent pipes.

[0040] There is a patent for a manual quick-change device with an air circuit switch. It is similar to the quick-change device in that it is quick-change in form. However, the difference is that the manual quick-change device for hollow air tubes of this utility model does not have an air circuit switch. The manual quick-change device for hollow air tubes of this utility model can connect to a rotary joint through a hollow air tube.

[0041] The main application scenarios of the manual quick-change device for hollow vent tubes disclosed in this utility model are as follows:

[0042] 1. Rotary platform / turntable:

[0043] For example, in an automated production line, a rotary table with hollow air ducts connected by a quick-release device provides vacuum adsorption or pneumatic power to the fixtures, while allowing the platform to rotate 360°.

[0044] 2. Robot joints:

[0045] The hollow air tube inside the robotic arm delivers gas to drive the end effector (such as a gripper), and the quick-release device facilitates rapid tool replacement.

[0046] 3. Medical / Semiconductor Equipment:

[0047] Clean gas or cooling medium is transported through the rotating parts, and the quick-release design facilitates maintenance.

[0048] The key features of the manual quick-change device for hollow vent tubes disclosed in this utility model are as follows:

[0049] 1. Tool-free operation structure: Quick assembly and disassembly are achieved through elastic deformation, reducing reliance on special tools and improving assembly and disassembly efficiency;

[0050] 2. Wear-resistant compensation design: A compensation mechanism is used during frequent assembly and disassembly to maintain high-precision fit, reduce the impact of wear, and improve connection stability;

[0051] 3. Self-locking and anti-loosening mechanism: The integrated self-locking mechanism enhances connection reliability and avoids safety hazards caused by equipment vibration;

[0052] 4. Connect the hollow air pipe to the rotating platform. The air pipe is connected to the central pipe for easy connection to the rotary joint and to prevent the air pipe from getting tangled during rotation.

[0053] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A manual quick-change device for a hollow vent tube, characterized in that: The assembly includes a lower detachable part (1), an upper detachable part (9), a rotating plate (6), and a self-locking mechanism. The rotating plate (6) is rotatably disposed between the lower detachable part (1) and the upper detachable part (9). The lower detachable part (1) and the upper detachable part (9) are detachably connected through the rotating plate (6) and the self-locking mechanism. The rotating plate (6) is mounted on the upper detachable part (9). A first slot (11) is provided on the side of the rotating plate (6). A second slot (12) is provided on the lower detachable part (1) corresponding to the position of the first slot (11). The self-locking mechanism is installed in the second slot (12). In the self-locking state, the self-locking mechanism extends from the second slot (12) to the first slot (11). A guide groove is provided on the end face of the rotating plate (6). A fixing pin (8) is provided on the lower detachable part (1). The fixing pin (8) is installed in the guide groove. The lower detachable part (1) and the upper detachable part (9) are positioned through the fixing pin (8) and the guide groove.

2. The manual quick-change device for hollow vent tubes according to claim 1, characterized in that: The self-locking mechanism is a self-locking spring clip (4). The self-locking spring clip (4) is fastened in the second slot (12) by its fixed base. In the self-locking state, the elastic arm of the self-locking spring clip (4) extends outward from the opening end of the second slot (12) and is embedded in the first slot (11).

3. The manual quick-change device for hollow vent tubes according to claim 2, characterized in that: The end face of the lower disassembly piece (1) is provided with a first notch, and a cover plate (5) is installed on the top of the first notch. A second notch is provided on the side of the cover plate (5). The position of the second notch corresponds to the first slot (11) and the second slot (12). In the self-locking state, the elastic arm of the self-locking spring clip (4) passes through the second notch on the cover plate (5) and is embedded in the first slot (11).

4. The manual quick-change device for hollow vent tubes according to claim 1, characterized in that: Both the upper disassembly piece (9) and the lower disassembly piece (1) are axially through hollow annular structures. The hollow edge of the upper disassembly piece (9) is provided with an annular boss (10) along the circumferential direction. A hollow rotating plate (6) that can rotate around the annular boss (10) is fitted on the annular boss (10). The rotating plate (6) is fixed on the upper disassembly piece (9) by a fixing pressure piece (3).

5. The manual quick-change device for hollow vent tubes according to claim 1, characterized in that: The end face of the lower disassembly piece (1) is provided with a plurality of fixing pins (8). One end of the fixing pin (8) is vertically fixed to the lower disassembly piece (1), and the other end of the fixing pin (8) extends to engage with the guide groove of the upper disassembly piece (9).

6. The manual quick-change device for hollow vent tubes according to claim 5, characterized in that: The guide groove includes an elongated slot (13) and a circular hole (14) communicating with the elongated slot (13), wherein the diameter of the circular hole (14) is greater than the width of the elongated slot (13).

7. The manual quick-change device for hollow vent tubes according to claim 1, characterized in that: The rotating plate (6) is also provided with a limiting groove (15), and the upper detachment (9) corresponding to the position of the limiting groove (15) is provided with a limiting pin (7). The free end of the limiting pin (7) is inserted into the limiting groove (15), and the limiting pin (7) is used to limit the rotation angle of the rotating plate (6).

8. The manual quick-change device for hollow vent tubes according to claim 1, characterized in that: The rotating plate (6) is provided with a rotating handle (16) on its side, and the rotating handle (16) is used to push the rotating plate (6) to rotate.

9. The manual quick-change device for hollow vent tubes according to claim 1, characterized in that: The lower detachment (1) is provided with multiple circular holes, and each circular hole is equipped with a rotatable positioning bead (2).

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