Quickly assembled and disassembled noise reduction self-locking structure and annular air inlet low-noise vortex air pump

Abstract

The invention relates to the field of air pumps, in particular to a quick disassembly and assembly noise reduction self-locking structure and an annular air inlet low-noise vortex air pump. The vortex air pump is provided with an air inlet and an air outlet, the air inlet and the air outlet are each connected with a silencer through a self-locking structure, and each self-locking structure comprises a buckling part arranged on the vortex air pump and a clamped part arranged on the silencer and matched with the buckling part. The self-locking structure further comprises a pressure applying part matched with the buckling part and an unlocking part matched with the clamped part. According to the self-locking silencer, the buckling part and the clamped part in the self-locking structure are tightly matched, the automatic pressure adjusting function of the pressure applying part is combined, it is ensured that the silencer is always firmly connected in the running process, the loosening problem caused by vibration or airflow fluctuation is effectively avoided, the silencer is easily separated from the buckling part through the unlocking part in the disassembling process, and therefore the silencer can be disassembled easily. And the disassembly and assembly efficiency and convenience are improved.

Description

Technical Field

[0001] The invention relates to the field of air pumps, and in particular to a quick-disassembly and assembly noise-reducing self-locking structure and an annular air intake low-noise vortex air pump. Background Art

[0002] Traditional vortex air pumps often generate a lot of noise during operation due to their working principle. This high noise not only affects the surrounding working environment, but also reduces work efficiency and the working comfort of employees. Therefore, it is necessary to set a silencer for the vortex air pump.

[0003] The currently disclosed Chinese patent authorization publication number CN219711819U points out that the existing muffler installation form is through screw connection or thread connection. However, if the screw connection is adopted, it is troublesome to disassemble and assemble, and if the thread connection is adopted, it is easy to loosen. The disclosed low-noise vortex air pump comprises an air pump body, which is constructed in a cylindrical shape; an air inlet channel, which extends in a circumferential direction within the air pump body; the low-noise vortex air pump comprises: a muffler, which is mounted on the air pump body; a mounting shell, which is arranged on the air pump body and provides a mounting platform for mounting the muffler; a sealing shell, which is arranged on the mounting shell and is used to seal the mounting shell; a self-locking structure, which is used to fix the muffler on the mounting platform; wherein a surface portion of the mounting platform passes through the air pump body and is connected to the air inlet channel to form a mounting hole for inserting the muffler; the hole wall of the mounting hole forms a limit platform; the outer wall of the muffler is provided with a mounting ring corresponding to the limit platform; after the mounting ring is inserted into the mounting hole, it abuts against the limit platform, and the mounting ring is fixed in the mounting hole by the self-locking structure.

[0004] According to the above patent, the above patent matches the muffler with the mounting ring, then inserts the muffler into the mounting hole and makes the mounting ring contact with the limit platform, so that the muffler is located in the air inlet channel and the mounting ring is fixed to the mounting platform through the self-locking structure. However, when the air pump is working, vibration will be generated, and the vibration will be transmitted to the self-locking structure at the connection of the muffler, especially after long-term use, which may cause the self-locking structure to loosen, thereby affecting the muffler effect. Therefore, there is a need for a self-locking structure that enhances the sealing and stability of the muffler connection. Summary of the invention

[0005] In view of the problems existing in the prior art, a quick-disassembly and assembly silencer self-locking structure is provided. Through the close cooperation between the snapping part and the clamped part in the self-locking structure, combined with the automatic pressure adjustment function of the pressure-applying part, it is ensured that the silencer is always firmly connected during operation, and the loosening problem caused by vibration or airflow fluctuations is effectively avoided. During disassembly, the snapping part can be easily detached through the unlocking part, thereby improving the disassembly and assembly efficiency and convenience.

[0006] In order to solve the problems of the prior art, the present invention provides a quick-disassembly and assembly silencer self-locking structure, which is applied to a vortex air pump, wherein the vortex air pump has an air inlet and an air outlet, and the air inlet and the air outlet are both connected to a muffler through a self-locking structure, and the self-locking structure includes a buckle portion arranged on the vortex air pump and a clamped portion arranged on the muffler and cooperating with the buckle portion, and the air inlet and the air outlet are both provided with sealing gaskets abutting against the end of the muffler, and the self-locking structure also includes a pressure-applying portion cooperating with the buckle portion and an unlocking portion cooperating with the clamped portion, when the vortex air pump is in a working state, the pressure-applying portion can automatically apply pressure to the buckle portion to make the contact between the buckle portion and the clamped portion closer, and when the vortex air pump is in a non-working state, the unlocking portion can allow the clamped portion to be separated from the buckle portion to disassemble the muffler.

[0007] Preferably, a support is provided at the position corresponding to each air outlet on the vortex air pump, and the pressure-applying part can move on the support in the direction of the buckle part. The inner wall of the pressure-applying part and the outer wall of the buckle part are provided with mutually matching inclined surfaces. When the pressure-applying part acts on the buckle part, the buckle part is in a state of applying pressure to the clamped part.

[0008] Preferably, the inner wall of the pressure-applying portion is provided with a first flexible layer capable of contacting the outer wall of the buckle portion to effectively reduce the friction force during the movement of the pressure-applying portion relative to the buckle portion.

[0009] Preferably, the inner wall of the buckle portion is provided with a second flexible layer that can adapt to the clamped portion to effectively enhance the indirect pressure-applying capability of the buckle portion on the clamped portion.

[0010] Preferably, a sliding sleeve is slidably provided on the support and can drive the pressure-applying part to move. A return spring is provided between the sliding sleeve and the support. When the return spring is not subjected to external force, the first flexible layer is in an uncompressed state. At the same time, a gap is formed between the pressure-applying part and the buckle part so that the buckle part can adapt to the deformation of the clamped part.

[0011] Preferably, a plurality of the buckling parts are evenly distributed around the corresponding air outlet on the support, and a clamped part is provided corresponding to each buckling part on the muffler, and the gap between every two adjacent buckling parts is the unlocking part. When the muffler is rotated so that the clamped part overcomes the second flexible layer and enters the unlocking part, the clamped part is in a disengaged state relative to the buckling part.

[0012] Preferably, a guide rod extends outward from the sliding sleeve along its moving direction, and a guide groove is provided on the muffler for the guide rod to slide and engage with. When the guide rod is engaged with the guide groove, the engaged portion and the buckle portion are in a locked state to prevent the muffler from rotating.

[0013] Preferably, a push plate is provided between the two sliding sleeves located at the corresponding air outlet, and the vortex air pump is provided with a pusher which can drive the push plate to move linearly in its working state. When the pusher is started, the push plate is in a state of driving the two sliding sleeves to move simultaneously, so that the pressure-applying part follows the movement of the sliding sleeve to act on the buckle part.

[0014] Preferably, the pusher is composed of an active member and a driven member, the active member is connected to the output end of the vortex air pump, the driven member is connected to the push plate, the driven member can move relative to the active member, and the active member is provided with a driving part that can drive the driven member to move while it follows the movement of the output end of the vortex air pump.

[0015] The present invention also provides an annular air intake low-noise vortex air pump, comprising a pump body and a vortex impeller arranged therein, the pump body is provided with an impeller motor, and also comprises the above-mentioned quick disassembly and silencing self-locking structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention ensures that the muffler always maintains a firm connection during operation by closely cooperating between the buckle part and the clamped part in the self-locking structure, combined with the automatic pressure adjustment function of the pressure-applying part, effectively avoiding loosening problems caused by vibration or airflow fluctuations, and also preventing the buckle part and the clamped part from being in a high-pressure state for a long time when the air pump is not working, which affects the service life and makes it difficult to disassemble. At the same time, the pressing of the sealing gasket further improves the gas sealing, reduces the risk of leakage, and ensures the energy efficiency of the use of the muffler. When the vortex air pump is shut down, the unlocking part provides a quick disassembly mechanism, and the muffler can be quickly replaced or maintained without complex tools. It not only improves the convenience of installation and disassembly, but also significantly enhances the reliability and airtightness of the connection, providing a strong guarantee for the efficient operation of the vortex air pump; 2. The present invention improves the connection performance between the muffler and the vortex air pump through the cooperation of the inclined surfaces of the pressure-applying part and the buckle part, as well as the synergistic effect of the first flexible layer and the second flexible layer. When the pressure-applying part moves, the first flexible layer effectively reduces the friction force to ensure smooth movement. The second flexible layer in the buckle part enhances the pressure-applying capacity of the clamped part through adaptive deformation to ensure a tight and reliable connection. This not only extends the service life of the buckle part, but also improves the anti-vibration performance of the muffler; 3. The present invention ensures accurate positioning and locking of the muffler during installation through the cooperation between the guide rod and the guide groove, so that the muffler can be quickly installed and prevented from self-rotation in the working state. When disassembling the muffler, as the guide rod is separated from the guide groove and the muffler is rotated, the clamped part can overcome the second flexible layer and enter the unlocking part, thereby easily breaking away from the constraint of the buckle part, so that the muffler can be quickly disassembled. The efficiency and convenience of quick disassembly and assembly of the muffler are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a quick disassembly and assembly silencer self-locking structure and an annular air intake low-noise vortex air pump of the present invention; Figure 2 It is a partial three-dimensional structural cross-sectional view of a quick disassembly and assembly silencing self-locking structure and an annular air intake low-noise vortex air pump of the present invention; Figure 3 It is a three-dimensional structural cross-sectional view of an air inlet and an air outlet of a quick disassembly and assembly silencing self-locking structure and an annular air intake low-noise vortex air pump of the present invention; Figure 4 It is a schematic diagram of the gradual engagement state of the clamped portion and the buckle portion of a quick disassembly and assembly noise-reducing self-locking structure of the present invention; Figure 5 It is a schematic diagram of a state in which a clamped portion and a buckle portion of a quick disassembly and assembly noise-reducing self-locking structure of the present invention are gradually separated; Figure 6 It is a three-dimensional structural cross-sectional view of a quick disassembly and assembly noise-reducing self-locking structure of the present invention; Figure 7 It is a planar cross-sectional view of a quick disassembly and assembly noise-reducing self-locking structure of the present invention; Figure 8 The present invention Figure 7 A three-dimensional structural cross-sectional view at AA; Fig. 9 It is a three-dimensional structural schematic diagram of a pusher and a self-locking structure of a quick disassembly and assembly noise-reducing self-locking structure of the present invention; Fig.10 It is a partial three-dimensional structural sectional view of a pusher with a quick disassembly and assembly noise-reducing self-locking structure of the present invention.

[0018] The numbers in the figure are: 1. vortex air pump; 11. pump body; 111. air inlet; 1111. sealing gasket; 112. air outlet; 12. vortex impeller; 13. impeller motor; 131. machine shaft; 1311. clamping strip; 1312. compression spring; 2. self-locking structure; 21. buckle part; 211. second flexible layer; 22. clamped part; 23. pressure-applying part; 231. first flexible layer; 24. unlocking part; 3. muffler; 31. guide groove; 4. support; 41. sliding sleeve; 411. guide rod; 42. reset spring; 421. flexible protective cover; 5. push plate; 51. pusher; 511. active part; 5111. driving part; 512. driven part; 5121. buffer layer; 52. bearing. DETAILED DESCRIPTION

[0019] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] See also Figure 1-Figure 7 As shown, a quick disassembly and assembly silencer self-locking structure is applied to a vortex air pump 1, wherein the vortex air pump 1 has an air inlet 111 and an air outlet 112, wherein the air inlet 111 and the air outlet 112 are both connected to a muffler 3 through a self-locking structure 2, wherein the self-locking structure 2 includes a buckle portion 21 disposed on the vortex air pump 1 and a clamped portion 22 disposed on the muffler 3 and matched with the buckle portion 21, wherein the air inlet 111 and the air outlet 112 are both connected to a muffler 3 through a self-locking structure 2. A sealing gasket 1111 is provided which abuts against the end of the muffler 3. The self-locking structure 2 also includes a pressure-applying portion 23 cooperating with the snap portion 21 and an unlocking portion 24 cooperating with the clamped portion 22. When the vortex air pump 1 is in the working state, the pressure-applying portion 23 can automatically apply pressure to the snap portion 21 to make the contact between the snap portion 21 and the clamped portion 22 closer. When the vortex air pump 1 is in the non-working state, the unlocking portion 24 can allow the clamped portion 22 to be separated from the snap portion 21 to disassemble the muffler 3.

[0021] When installing the muffler 3, first make sure that the vortex air pump 1 is in a non-working state. Prevent the internal pressure and airflow from affecting the installation process. Once it is confirmed that the vortex air pump 1 is in a shutdown state, the operator holds the muffler 3 and the vortex air pump 1 tightly connected through the snap portion 21 and the clamped portion 22 in the self-locking structure 2. When the snap portion 21 and the clamped portion 22 are snapped together, the end of the muffler 3 contacts the sealing gasket 1111 to ensure that there is no gas leakage. At this point, the muffler 3 has formed a firm and safe connection with the vortex air pump 1 during use.

[0022] When the muffler 3 is properly installed and connected to the vortex air pump 1, the pressure-applying part 23 will automatically start during the working process. At this time, the pressure-applying part 23 transfers the pressure to the buckle part 21. This makes the contact between the buckle part 21 and the clamped part 22 on the muffler 3 tighter, ensuring that the locking between the two is more secure and avoiding the loose connection caused by vibration and air flow fluctuations.

[0023] Under the action of the pressure-applying part 23, the contact pressure between the buckle part 21 and the clamped part 22 will be continuously maintained. That is, in the actual operation of the vortex air pump 1, the pressure-applying part 23 can provide continuous support to ensure the stability of the muffler 3. The pressure-applying part 23 automatically applies appropriate pressure to enhance the stability between the muffler 3 and the vortex air pump 1, effectively avoiding the impact of the airflow on the muffler 3, and ensuring that the muffler 3 can still maintain a stable working state when the vortex air pump 1 is running efficiently.

[0024] In the process of applying pressure by the pressure-applying part 23, the contact between the buckle part 21 and the clamped part 22 is not only tighter, but also the sealing gasket 1111 at the air inlet 111 and the air outlet 112 is better pressed, further ensuring the sealing. Effective sealing avoids the risk of gas leakage, ensures the efficient operation of the muffler 3 throughout the working cycle, and avoids the reduction of energy efficiency due to leakage.

[0025] When the vortex air pump 1 stops working, the pressure applying part 23 will automatically stop applying pressure. At this time, the connection between the muffler 3 and the vortex air pump 1 will automatically maintain a safe and stable state.

[0026] Next, the operator releases the lock between the buckle portion 21 and the clamped portion 22 through the unlocking portion 24. An unlocking mechanism is provided to enable the buckle portion 21 and the clamped portion 22 to be separated, thereby avoiding any complicated operations during the disassembly process. The operator only needs to operate step by step to remove the muffler 3 from the vortex air pump 1, thereby completing the entire disassembly process.

[0027] See also Figure 1-Figure 7 As shown, a support 4 is provided at the position corresponding to each air outlet on the vortex air pump 1, and the pressure-applying portion 23 can move on the support 4 toward the buckle portion 21. The inner wall of the pressure-applying portion 23 and the outer wall of the buckle portion 21 are provided with mutually matching inclined surfaces. When the pressure-applying portion 23 acts on the buckle portion 21, the buckle portion 21 is in a state of applying pressure to the clamped portion 22.

[0028] When the vortex air pump 1 is running, the pressure-applying portion 23 moves on the support 4 toward the buckle portion 21 , and the inner wall thereof begins to contact with the mutually matching inclined surfaces on the outer wall of the buckle portion 21 and generates a force.

[0029] As the pressure-applying portion 23 moves further, the pressure between the inclined surfaces gradually increases, causing the buckle portion 21 to deform and apply additional pressure to the clamped portion 22, thereby making the connection between the buckle portion 21 and the clamped portion 22 tighter and more secure. This ensures that when the vortex air pump 1 is in operation, the connection between the muffler 3 and the vortex air pump 1 can effectively resist the influence of vibration and airflow fluctuations and maintain a stable locking state.

[0030] See also Figure 2-Figure 7 As shown, the inner wall of the pressure-applying portion 23 is provided with a first flexible layer 231 capable of contacting the outer wall of the buckle portion 21 to effectively reduce the friction force during the movement of the pressure-applying portion 23 relative to the buckle portion 21 .

[0031] When the pressure-applying portion 23 moves on the support 4 and contacts the buckle portion 21, the first flexible layer 231 on the inner wall of the pressure-applying portion 23 contacts the outer wall of the buckle portion 21. The first flexible layer 231, with its flexibility and elasticity, forms a buffer during the relative movement of the two, effectively reducing the friction generated by direct contact.

[0032] The indirect action of the first flexible layer 231 not only reduces the movement resistance, but also reduces the wear of the buckle portion 21 and the pressure portion 23, ensuring that the pressure portion 23 can apply pressure to the buckle portion 21 more smoothly, while extending the service life of the self-locking structure 2.

[0033] See also Figure 2-Figure 7 As shown, the inner wall of the buckle portion 21 is provided with a second flexible layer 211 which can adapt to the clamped portion 22 to effectively enhance the indirect pressure application capability of the buckle portion 21 on the clamped portion 22 .

[0034] When the clamped portion 22 is inserted into the buckle portion 21, the second flexible layer 211 on the inner wall of the buckle portion 21 will adapt to the shape of the clamped portion 22 and fit closely. Through the elastic deformation of the second flexible layer 211, the buckle portion 21 can more evenly transfer the pressure to the clamped portion 22, thereby effectively enhancing the pressure-applying capacity of the clamped portion 22.

[0035] As the pressure-applying portion 23 applies pressure to the buckle portion 21, the buckle portion 21 can indirectly apply pressure to the clamped portion 22 through the second flexible layer 211, and flexibly and evenly transmit the pressure of the buckle portion 21 to the clamped portion 22 through its own elastic deformation, thereby avoiding wear caused by hard contact. This not only improves the connection stability between the buckle portion 21 and the clamped portion 22, but also ensures that the two maintain closer contact under stress, further improving the reliability of the self-locking structure 2.

[0036] See also Figure 2-Figure 7 As shown, a sliding sleeve 41 is slidably provided on the support 4 and can drive the pressure-applying portion 23 to move. A return spring 42 is provided between the sliding sleeve 41 and the support 4. When the return spring 42 is not subjected to external force, the first flexible layer 231 is in an uncompressed state. At the same time, a gap is formed between the pressure-applying portion 23 and the buckle portion 21 so that the buckle portion 21 can adapt to the deformation of the clamped portion 22.

[0037] A flexible protective sleeve 421 for wrapping the return spring 42 is provided between the support 4 and the sliding sleeve 41 .

[0038] When the return spring 42 is not subjected to external force, the sliding sleeve 41 maintains its initial position on the support 4. At this time, the first flexible layer 231 is in an uncompressed state, and a certain gap is formed between the pressure-applying portion 23 and the buckle portion 21. The gap allows the buckle portion 21 to perform adaptive deformation adjustment according to the size of the clamped portion 22.

[0039] At the same time, the flexible protective sleeve 421 between the support 4 and the sliding sleeve 41 wraps the reset spring 42 therein, which not only protects the reset spring 42 from external interference, but also ensures the stability and flexibility of the sliding sleeve 41 when sliding along the support 4. When pressure is required, the sliding sleeve 41 is moved by the external force to overcome the elastic force of the reset spring 42, driving the pressure-applying portion 23 to approach the buckle portion 21 and compress the first flexible layer 231, thereby realizing the pressure transmission to the buckle portion 21.

[0040] See also Figure 4-Figure 8 As shown, a plurality of the buckle portions 21 are evenly distributed around the corresponding air outlets on the support 4, and a clamped portion 22 is provided on the muffler 3 corresponding to each buckle portion 21, and the gap between every two adjacent buckle portions 21 is the unlocking portion 24. When the muffler 3 is rotated so that the clamped portion 22 overcomes the second flexible layer 211 and enters the unlocking portion 24, the clamped portion 22 is in a disengaged state relative to the buckle portion 21.

[0041] When the muffler 3 needs to be disassembled, the muffler 3 is rotated to align the clamped portion 22 with the unlocking portion 24 between every two adjacent buckle portions 21 . During this process, the clamped portion 22 needs to overcome the resistance of the second flexible layer 211 and gradually break away from the constraint of the buckle portion 21 .

[0042] Since the second flexible layer 211 is elastic, it provides a certain buffering effect when the clamped portion 22 moves, reducing hard wear. Finally, when the clamped portion 22 completely enters the unlocking portion 24, the clamped portion 22 and the buckle portion 21 are in a disengaged state, thereby achieving rapid unlocking and separation of the muffler 3.

[0043] See also Figure 4-Figure 8 As shown, a guide rod 411 extends outward from the sliding sleeve 41 along its moving direction, and a guide groove 31 is provided on the muffler 3 for the guide rod 411 to slide and engage. When the guide rod 411 is engaged with the guide groove 31, the engaged portion 22 and the buckle portion 21 are in a locked state to prevent the muffler 3 from rotating.

[0044] When the sliding sleeve 41 moves to make the guide rod 411 engage with the guide groove 31 on the muffler 3, the guide rod 411 is firmly embedded in the direction of the guide groove 31. At this time, a tightly locked state is formed between the clamped portion 22 and the buckle portion 21, which effectively prevents the muffler 3 from rotating when the vortex air pump 1 is in the working state, and avoids the loosening or misalignment of the connection between the clamped portion 22 and the buckle portion 21 due to vibration, thereby improving the stability and reliability of the muffler 3.

[0045] When the clamped portion 22 on the muffler 3 is docked with the buckle portion 21 , the cooperation between the guide rod 411 and the guide groove 31 can also play a guiding role, so that the muffler 3 can be quickly installed.

[0046] See also Figure 1 , Figure 2 , Fig. 9 and Fig.10 As shown, a push plate 5 is provided between the two sliding sleeves 41 located at the corresponding air outlets, and a pusher 51 is provided on the vortex air pump 1 which can drive the push plate 5 to make a linear motion in its working state. When the pusher 51 is started, the push plate 5 is in a state of driving the two sliding sleeves 41 to move simultaneously, so that the pressure-applying portion 23 follows the movement of the sliding sleeve 41 to act on the buckle portion 21.

[0047] When the vortex air pump 1 enters the working state, the pusher 51 starts and drives the push plate 5 to make a linear motion. The push plate 5 is located between the two sliding sleeves 41 corresponding to the air outlet, and its movement makes the two sliding sleeves 41 move in the same direction at the same time.

[0048] As the sliding sleeve 41 moves, the pressure-applying portion 23 moves along with the sliding sleeve 41 and gradually approaches the buckle portion 21, and finally acts on the buckle portion 21. Through the cooperation between the inner wall of the pressure-applying portion 23 and the outer wall of the buckle portion 21, the buckle portion 21 applies pressure to the clamped portion 22, thereby realizing automatic reinforcement and stable locking of the self-locking structure 2 during the operation of the vortex air pump 1.

[0049] See also Figure 1 , Figure 2 , Fig. 9 and Fig.10 As shown, the pusher 51 is composed of an active member 511 and a driven member 512, wherein the active member 511 is connected to the output end of the vortex air pump 1, and the driven member 512 is connected to the push plate 5, and the driven member 512 can move relative to the active member 511. The active member 511 is provided with a driving part 5111 which can drive the driven member 512 to move while it follows the movement of the output end of the vortex air pump 1.

[0050] The output end of the vortex air pump 1 has a crankshaft 131, the active member 511 is specifically a disc-shaped structure coaxially connected to the crankshaft 131, the driven member 512 is specifically a ring structure sleeved on the active member 511, and the driving part 5111 is a block structure. The driving part 5111 is provided on the active member 511 to slide along its radial direction, a slide groove is provided between the active member 511 and the driven member 512 for the driving part 5111 to slide therein, and the inner wall of the driven member 512 and the driving part 5111 are provided with mutually matching inclined surfaces.

[0051] When the shaft 131 rotates and drives the active member 511 to rotate synchronously, the driving part 5111 moves outward along the slide slot due to the centrifugal force, so that the driven member 512 moves under the push of the driving part 5111, so that the push plate 5 drives the movement of the two sliding sleeves 41 at the same time, and the return spring 42 connected between the sliding sleeve 41 and the support 4 is in a stretched state. In this way, each muffler 3 is locked more strongly under the cooperation of the pressure-applying part 23 and the buckle part 21. The higher the speed of the air pump when it is working, the greater the vibration generated, and the greater the pressure applied by the pressure-applying part 23 on the buckle part 21, which can not only make the muffler 3 firmly engaged when the air pump is working, but also avoid the engagement structure being in a high pressure state for a long time when the air pump is not working, affecting the service life and being difficult to disassemble.

[0052] A bearing 52 is provided between the driven member 512 and the push plate 5. When the active member 511 rotates, since the driving part 5111 is clamped in the slide groove between the active member 511 and the driven member 512, the driven member 512 can rotate together, reducing the friction between the driven member 512 and the push plate 5.

[0053] The active member 511 is evenly distributed with a plurality of driving parts 5111 along its circumferential direction, and a buffer layer 5121 for reducing the impact force is provided at the position of each driving part 5111 on the inner wall of the driven member 512 .

[0054] The active member 511 can slide on the shaft 131 . The shaft 131 is provided with a clamping strip 1311 along its axial direction. The active member 511 is provided with a clamping slot that cooperates with the clamping strip 1311 , which can realize both the rotation and movement of the active member 511 .

[0055] When the operator presses the follower 512 when the vortex air pump 1 is not in operation, the active member 511 moves with the follower 512, and the push plate 5 moves with the follower 512 to move the guide rods 411 on the two sleeves 41 away from the guide grooves 31 on the corresponding mufflers 3. At this time, the return spring 42 connected between the sleeve 41 and the support 4 is in a compressed state. Thus, the locks of the two mufflers 3 are released at the same time, and the clamped portion 22 can enter the unlocking portion 24 when the muffler 3 is rotated to complete the disassembly.

[0056] A compression spring 1312 is provided between the active member 511 and the shaft 131. When the driven member 512 is pressed, the compression spring 1312 is in a compressed state. When the driven member 512 is released, the compression spring 1312 is in a reset state, which is beneficial to the return of the active member 511 and ensures effective cooperation between the active member 511 and the driven member 512.

[0057] A ring-shaped air intake low-noise vortex air pump comprises a pump body 11 and a vortex impeller 12 arranged therein. The pump body 11 is provided with an impeller motor 13 and also comprises the above-mentioned quick disassembly and silencing self-locking structure.

[0058] The machine shaft 131 connected to the active component 511 is specifically the machine shaft 131 of the impeller motor 13 .

[0059] The present invention ensures that the muffler 3 is always firmly connected during operation through the close cooperation between the buckle portion 21 and the clamped portion 22 in the self-locking structure 2, combined with the automatic pressure adjustment function of the pressure-applying portion 23, and effectively avoids the loosening problem caused by vibration or air flow fluctuations. At the same time, the pressing of the sealing gasket 1111 improves the gas sealing, reduces the risk of leakage, and ensures energy efficiency.

[0060] When the vortex air pump 1 is shut down, the unlocking portion 24 provides a quick disassembly mechanism, and the muffler 3 can be replaced or maintained without complicated tools. The cooperation between the guide rod 411 and the guide groove 31 ensures the accurate positioning of the muffler 3 to prevent self-rotation. When disassembling, the unlocking portion 24 can easily separate from the buckle portion 21, thereby improving the efficiency and convenience of disassembly and assembly.

[0061] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A quick-disassembly and assembly silencer self-locking structure, applied to a vortex air pump (1), the vortex air pump (1) having an air inlet (111) and an air outlet (112), the air inlet (111) and the air outlet (112) both being connected to a silencer (3) via a self-locking structure (2); characterized in that: The self-locking structure (2) comprises a buckle portion (21) arranged on the vortex air pump (1) and a clamped portion (22) arranged on the muffler (3) and cooperating with the buckle portion (21); the air inlet (111) and the air outlet (112) are both provided with sealing gaskets (1111) abutting against the end of the muffler (3); the self-locking structure (2) further comprises a pressure-applying portion (23) cooperating with the buckle portion (21) and an unlocking portion (24) cooperating with the clamped portion (22); when the vortex air pump (1) is in a working state, the pressure-applying portion (23) can automatically apply pressure to the buckle portion (21) so that the contact between the buckle portion (21) and the clamped portion (22) is tighter; when the vortex air pump (1) is in a non-working state, the unlocking portion (24) can allow the clamped portion (22) to be separated from the buckle portion (21) so as to disassemble the muffler (3).

2. A quick disassembly and silencing self-locking structure according to claim 1, characterized in that: A support (4) is provided at a position corresponding to each air outlet on the vortex air pump (1); the pressure-applying portion (23) can move on the support (4) in the direction of the buckle portion (21); the inner wall of the pressure-applying portion (23) and the outer wall of the buckle portion (21) are provided with mutually matching inclined surfaces; when the pressure-applying portion (23) acts on the buckle portion (21), the buckle portion (21) is in a state of applying pressure to the clamped portion (22).

3. A quick disassembly and assembly noise-reducing self-locking structure according to claim 2, characterized in that: The inner wall of the pressure-applying portion (23) is provided with a first flexible layer (231) capable of contacting the outer wall of the buckle portion (21).

4. The quick disassembly and silencing self-locking structure according to claim 2 is characterized in that: The inner wall of the buckle portion (21) is provided with a second flexible layer (211) capable of adapting to the clamped portion (22).

5. The quick disassembly and assembly noise-reducing self-locking structure according to claim 3 is characterized in that: A sliding sleeve (41) is slidably provided on the support (4) and is capable of driving the pressure-applying portion (23) to move. A return spring (42) is provided between the sliding sleeve (41) and the support (4). When the return spring (42) is not subjected to an external force, the first flexible layer (231) is in an uncompressed state, and a gap is formed between the pressure-applying portion (23) and the buckle portion (21) so that the buckle portion (21) can adapt to the deformation of the clamped portion (22).

6. The quick disassembly and silencing self-locking structure according to claim 4 is characterized in that: A plurality of the buckling portions (21) are evenly distributed on the support (4) around the corresponding air outlet, and a clamped portion (22) is provided on the muffler (3) corresponding to each buckling portion (21), and a gap between every two adjacent buckling portions (21) is the unlocking portion (24). When the muffler (3) is rotated so that the clamped portion (22) overcomes the second flexible layer (211) and enters the unlocking portion (24), the clamped portion (22) is in a disengaged state relative to the buckling portion (21).

7. The quick disassembly and assembly noise-reducing self-locking structure according to claim 5, characterized in that: A guide rod (411) extends outwardly from the sliding sleeve (41) along its moving direction, and a guide groove (31) capable of being slidably engaged with the guide rod (411) is provided on the muffler (3); when the guide rod (411) is engaged with the guide groove (31), the engaged portion (22) and the buckle portion (21) are in a locked state to prevent the muffler (3) from rotating.

8. The quick disassembly and assembly noise-reducing self-locking structure according to claim 7, characterized in that: A push plate (5) is provided between two sliding sleeves (41) corresponding to the air outlets, and a pusher (51) is provided on the vortex air pump (1) which is capable of driving the push plate (5) to perform linear motion in its working state. When the pusher (51) is started, the push plate (5) is in a state of driving the two sliding sleeves (41) to move simultaneously, so that the pressure-applying portion (23) moves with the sliding sleeves (41) to act on the buckle portion (21).

9. The quick disassembly and assembly noise-reducing self-locking structure according to claim 8, characterized in that: The pusher (51) is composed of an active member (511) and a driven member (512); the active member (511) is connected to the output end of the vortex air pump (1); the driven member (512) is connected to the push plate (5); the driven member (512) is movable relative to the active member (511); and the active member (511) is provided with a driving portion (5111) capable of driving the driven member (512) to move when the active member (511) follows the movement of the output end of the vortex air pump (1).

10. An annular air intake low-noise vortex air pump, comprising a pump body (11) and a vortex impeller (12) arranged therein, wherein the pump body (11) is provided with an impeller motor (13), characterized in that: It also includes a quick disassembly and assembly noise-reducing self-locking structure as described in any one of claims 1 to 9.

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