Connecting structure of air cylinder silencer

The improved connection structure solved the problem of loose cylinder muffler connections, achieving stable connection and flexible airflow transition, thus improving the muffler's noise reduction effect.

CN224161771UActive Publication Date: 2026-04-24NINGBO FORWARD MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FORWARD MASCH CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing connection between the cylinder muffler and the cylinder structure is prone to loosening, affecting the noise reduction effect.

Method used

The structure, including a connecting seat, locking hole, plug-in seat, return spring, and locking rod, enables quick disassembly and installation of the long-head muffler. The structure, including an inner tube, sealing gasket, and composite damping ring, provides a flexible transition for airflow, reducing cylinder exhaust impact vibration.

Benefits of technology

To prevent the long-nose muffler connection from loosening, improve connection stability, reduce cylinder exhaust impact vibration, and enhance the muffler treatment effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a connecting structure of an air cylinder silencer, and relates to the technical field of air cylinder silencers. The device comprises a connecting piece, an air inlet pipe fixedly arranged in the middle of one end of the connecting piece, and a connecting seat distributed on one side of the air inlet pipe, an inner pipe is fixedly arranged in the middle of an inner cavity of the connecting base, a clamping groove is formed in the inner side wall of the inner pipe, an adaptive groove is formed in the inner cavity of the connecting base, a sealing gasket is arranged on the inner side wall of the connecting base, a lock hole is formed in the outer surface of the connecting base, a bayonet socket is distributed at one end of the connecting base, and a sealing groove is formed in the outer surface of the bayonet socket. The long-head silencer can be conveniently and quickly disassembled and assembled subsequently through the structures such as the connecting base, the lock hole, the inserting base, the reset spring and the lock rod, and compared with an existing mode of connecting through threads, the long-head silencer can be effectively prevented from loosening after being connected, and the long-head silencer can be conveniently disassembled and assembled. And meanwhile, gaps can be prevented from being generated, and subsequent silencing treatment on the air cylinder is prevented from being influenced.
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Description

Technical Field

[0001] This utility model belongs to the technical field of cylinder mufflers, and in particular relates to a connection structure for a cylinder muffler. Background Technology

[0002] Cylinder mufflers are key components used to reduce exhaust noise from pneumatic equipment, and their design and technical features directly affect the noise reduction effect and applicability.

[0003] When the cylinder is working, the exhaust gas generates a certain amount of noise due to the high speed of the gas flow. Therefore, a muffler is needed to reduce the noise generated by the cylinder. However, the existing muffler is often directly connected to the cylinder structure using threads. This connection method can cause the connection to loosen due to the impact of gas flow or external forces after long-term use, thus affecting the normal noise reduction of the cylinder exhaust. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a connection structure for a cylinder muffler, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a connection structure for a cylinder muffler, including a connector, an air inlet pipe fixed in the middle of one end of the connector, and a connecting seat distributed on one side of the air inlet pipe.

[0007] It also includes: an inner tube fixed in the middle of the inner cavity of the connector, and a slot is opened on the inner side wall of the inner tube; an adapter groove is opened in the inner cavity of the connector; a sealing gasket is provided on the inner side wall of the connector; a locking hole is opened on the outer surface of the connector; a plug-in seat is distributed at one end of the connector, and a sealing groove is opened on the outer surface of the plug-in seat; a return spring is fixedly connected to the inner cavity of the plug-in seat, and a locking rod is fixedly connected to the other end of the return spring; an auxiliary sliding plate is sleeved on the outer side of one end of the locking rod; a baffle is fixedly provided at the end of the plug-in seat away from the connector, and a long-headed muffler is fixedly provided at the other end of the baffle.

[0008] Furthermore, the inner side of the plug-in socket is provided with a retaining tube, and a retaining strip is fixed on the outer surface of the retaining tube, and a composite damping ring is provided in the inner cavity of the retaining tube.

[0009] Furthermore, the slots are equidistantly distributed along the center point of the inner tube, and the inner tube is symmetrically distributed along the vertical center line of the connector.

[0010] Furthermore, the inner diameter of the lock hole is adapted to the outer diameter of the lock rod, and the lock holes are symmetrically distributed along the vertical center line of the connecting seat.

[0011] Furthermore, the locking rod is slidably connected to the plug-in seat via a return spring, and the locking rod is symmetrically distributed on both sides of the plug-in seat.

[0012] Furthermore, the card strips are equidistantly distributed along the center point of the card connector, and the outer diameter of the card strips is adapted to the inner diameter of the card slot.

[0013] This utility model has the following beneficial effects:

[0014] This utility model, through its structure including a connecting seat, locking hole, plug-in seat, return spring, and locking rod, facilitates the quick disassembly and installation of the long-head muffler. Compared to the existing threaded connection method, it not only effectively prevents the long-head muffler from loosening after connection but also prevents gaps from forming, thus avoiding affecting the subsequent muffler treatment of the cylinder.

[0015] This invention, through its internal tube, sealing gasket, and composite damping ring, facilitates a smooth transition of the powerful airflow generated during cylinder operation, reducing the vibration of cylinder exhaust impact and enhancing overall practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is a side view of the connector of this utility model;

[0019] Figure 3 This is a side view of the connector of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-section of the plug-in socket of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Connector; 2. Intake pipe; 3. Connector seat; 4. Inner pipe; 5. Slot; 6. Adapter slot; 7. Sealing gasket; 8. Locking hole; 9. Plug-in seat; 10. Sealing groove; 11. Return spring; 12. Locking rod; 13. Auxiliary slide plate; 14. Baffle; 15. Long-head muffler; 16. Locking pipe; 17. Locking strip; 18. Composite damping ring. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-4 As shown, this utility model is a connection structure for a cylinder muffler, including a connector 1, an air inlet pipe 2 fixed in the middle of one end of the connector 1, and a connecting seat 3 distributed on one side of the air inlet pipe 2.

[0025] It also includes: an inner tube 4 fixed in the middle of the inner cavity of the connecting seat 3, and a slot 5 opened on the inner side wall of the inner tube 4, the slots 5 being equidistantly distributed along the center point of the inner tube 4, and a hole with a diameter matching the outer diameter of the retaining tube 16 opened on the inner side of the inner tube 4; an adapter groove 6 opened in the inner cavity of the connecting seat 3, the adapter groove 6 and the connecting seat 3 forming an integrated structure; a sealing gasket 7 provided on the inner side wall of the connecting seat 3, the sealing gasket 7 being equidistantly distributed along the inner side wall of the connecting seat 3; and a locking hole 8 opened on the outer surface of the connecting seat 3. One end of the seat 3 is provided with a plug-in seat 9, and the outer surface of the plug-in seat 9 is provided with a sealing groove 10. The inner cavity of the plug-in seat 9 is fixedly connected with a return spring 11, and the other end of the return spring 11 is fixedly connected with a locking rod 12. The two ends of the return spring 11 are respectively fixedly connected to the inner side of one end of the locking rod 12 and the inner side wall of the plug-in seat 9. An auxiliary sliding plate 13 is sleeved on the outer side of one end of the locking rod 12. A baffle 14 is fixedly provided at the end of the plug-in seat 9 away from the connecting seat 3, and a long-headed muffler 15 is fixedly provided at the other end of the baffle 14.

[0026] During operation, the locking rod 12 is first squeezed to retract to the inside of the connector 9, and the return spring 11 is squeezed to deform and generate a reverse force. Then, the connector 9 moves laterally via the baffle 14. Subsequently, one end of the connector 9 is inserted into the inner side of the adapter groove 6, causing the snap-fit ​​tube 16 to engage with the inner tube 4. At the same time, since multiple sealing grooves 10 are evenly distributed on the outer wall of the connector 9, and the size of the sealing grooves 10 matches the outer diameter of the sealing gasket 7, when the connector 9 engages with the connecting seat 3, the sealing gasket 7 is inserted into the inner side of the sealing groove 10, which facilitates the improvement of the stability of the connection between the connector 9 and the connecting seat 3. When the connector 9 is fully inserted... When the locking rod 12 is inserted into the inner side of the adapter slot 6, it moves to one side of the lock hole 8. At this time, the reverse force generated by the deformation of the return spring 11 will push the locking rod 12 in the opposite direction, thereby inputting one end of the locking rod 12 into the inner side of the lock hole 8, so as to realize the positioning treatment of the plug-in seat 9 and improve the stability of the connection between the plug-in seat 9 and the connecting seat 3. The setting of the auxiliary slide plate 13 can improve the stability of the locking rod 12 during the movement process and prevent it from shifting its position during lateral movement. After the long-head muffler 15 is connected to the connector 1 through the plug-in seat 9, the airflow generated when the cylinder works will enter the inner side of the connector 1 through the air intake pipe 2, and then flow into the long-head muffler 15 for noise reduction.

[0027] Furthermore, the inner side of the plug-in 9 is provided with a retaining tube 16, and the outer surface of the retaining tube 16 is fixed with a retaining strip 17. The retaining strip 17 is equidistantly distributed along the center point of the retaining tube 16, and the number of retaining strips 17 is the same as the number of retaining slots 5. The inner cavity of the retaining tube 16 is provided with a composite damping ring 18, which is equidistantly distributed on the inner side of the retaining tube 16.

[0028] During operation, one end of the clamping connector 16 is inserted into the inner side of the inner tube 4, and then the clamping connector 16 is pushed laterally again. The clamping connector 16 drives the clamping strip 17 to move laterally along the clamping groove 5. When the clamping strip 17 moves to the appropriate position, it is convenient to realize the subsequent clamping connection between the clamping connector 16 and the inner tube 4. When the cylinder works, the exhaust gas generated enters the inner side of the clamping connector 16. The multiple composite damping rings 18 can be used to facilitate the subsequent flexible transition section to absorb the impact vibration generated by the cylinder exhaust gas.

[0029] Furthermore, the slots 5 are equidistantly distributed along the center point of the inner tube 4, and the inner tube 4 is symmetrically distributed along the vertical center line of the connector 1;

[0030] During operation, when the card strip 17 is inserted into the inside of the card slot 5, it facilitates the subsequent positioning of the card connector 16, ensuring the stability of the connection between the card connector 16 and the inner tube 4.

[0031] Furthermore, the inner diameter of the lock hole 8 is adapted to the outer diameter of the lock rod 12, and the lock holes 8 are symmetrically distributed along the vertical center line of the connecting seat 3;

[0032] During operation, since the size of the lock hole 8 is compatible with the size of the lock rod 12, it is convenient to position the connector 9 after the lock rod 12 is inserted into the inside of the lock hole 8.

[0033] Furthermore, the locking rod 12 is slidably connected to the plug-in seat 9 via the return spring 11, and the locking rod 12 is symmetrically distributed on both sides of the plug-in seat 9;

[0034] During operation, the reverse force generated by the deformation of the return spring 11 will push the locking rod 12 in the opposite direction, thereby inputting one end of the locking rod 12 into the inside of the lock hole 8, which facilitates the subsequent positioning of the plug-in seat 9.

[0035] Furthermore, the card strips 17 are equidistantly distributed along the center point of the card tube 16, and the outer diameter of the card strips 17 is adapted to the inner diameter of the card groove 5;

[0036] During operation, since the size of the card strip 17 is compatible with the size of the card slot 5, when the card connector 16 drives the card strip 17 to engage with the card slot 5, the card connector 16 and the inner tube 4 can be connected.

[0037] Working principle: First, the locking rod 12 is squeezed to retract into the connector 9. Then, the baffle 14 drives the connector 9 to move, causing the locking tube 16 to engage with the inner tube 4. At the same time, the sealing gasket 7 is inserted into the inner side of the sealing groove 10 to facilitate the subsequent improvement of the stability of the connection between the connector 9 and the connecting seat 3. When the connector 9 is fully inserted into the inner side of the adapter groove 6, the reverse force generated by the deformation of the return spring 11 will push the locking rod 12 in the opposite direction, thereby inserting one end of the locking rod 12 into the inner side of the lock hole 8. This achieves the positioning of the connector 9 and improves the stability of the connection between the connector 9 and the connecting seat 3. The auxiliary slide plate 13 can improve the stability of the locking rod 12 during movement and prevent it from shifting its position during lateral movement. After the long-head muffler 15 is connected to the connector 1 through the connector 9, the airflow generated when the cylinder is working will enter the inner side of the connector 1 through the intake pipe 2, and then flow into the long-head muffler 15 for noise reduction.

[0038] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A connection structure for a cylinder muffler, comprising a connector (1), an intake pipe (2) fixed at the middle of one end of the connector (1), and a connecting seat (3) distributed on one side of the intake pipe (2); characterized in that It also includes: an inner tube (4) is fixed in the middle of the inner cavity of the connecting seat (3), and a slot (5) is opened on the inner side wall of the inner tube (4), an adapter slot (6) is opened in the inner cavity of the connecting seat (3), a sealing gasket (7) is provided on the inner side wall of the connecting seat (3), and a lock hole (8) is opened on the outer surface of the connecting seat (3). One end of the connector (3) is provided with a plug-in seat (9), and the outer surface of the plug-in seat (9) is provided with a sealing groove (10). The inner cavity of the plug-in seat (9) is fixedly connected with a reset spring (11), and the other end of the reset spring (11) is fixedly connected with a locking rod (12). An auxiliary sliding plate (13) is sleeved on the outer side of one end of the locking rod (12). A baffle (14) is fixed at one end of the plug-in socket (9) away from the connector (3), and a long-headed muffler (15) is fixed at the other end of the baffle (14).

2. The connecting structure of a cylinder silencer according to claim 1, wherein The inner side of the plug-in (9) is provided with a retaining tube (16), and a retaining strip (17) is fixed on the outer surface of the retaining tube (16). A composite damping ring (18) is provided in the inner cavity of the retaining tube (16).

3. The connecting structure of a cylinder silencer according to claim 1, wherein The slots (5) are equidistantly distributed along the center point of the inner tube (4), and the inner tube (4) is symmetrically distributed along the vertical center line of the connector (1).

4. The connecting structure of a cylinder silencer according to claim 1, wherein The inner diameter of the lock hole (8) is matched with the outer diameter of the lock rod (12), and the lock holes (8) are symmetrically distributed along the vertical center line of the connecting seat (3).

5. The connecting structure of a cylinder silencer according to claim 1, wherein The locking rod (12) is slidably connected to the plug-in seat (9) via a return spring (11), and the locking rod (12) is symmetrically distributed on both sides of the plug-in seat (9).

6. The connecting structure of a cylinder silencer according to claim 2, wherein The card strips (17) are equidistantly distributed along the center point of the card connector (16), and the outer diameter of the card strips (17) is compatible with the inner diameter of the card slots (5).