An embedded silencer connection structure

Abstract

The application discloses an embedded silencer connecting structure, and aims at solving the problem of poor sealing performance of a gas outlet of a silencer and a valve plate, and easy leakage. The application comprises the silencer and the valve plate, a gasket is arranged between the valve plate and the silencer, a boss is arranged on an outlet end surface of the silencer, a sunken hole is arranged on the valve plate, the boss is embedded in the sunken hole, a through hole is arranged on the gasket, the through hole edge of the gasket is sealingly arranged between the outer wall of the boss and the inner wall of the sunken hole, and the outlet end surface of the silencer is sealingly abutted with the gasket. The connecting structure has good sealing performance at the connecting position of the gas outlet of the silencer and the valve plate, and is not prone to leakage.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to an embedded muffler connection structure. Background Technology

[0002] The refrigerator compressor, as the heart of the refrigerator's refrigeration system, provides power for the refrigeration cycle. During startup, refrigerant is drawn into the compressor cylinder through the valve assembly, compressed into a high-temperature, high-pressure gas, and then discharged through the valve assembly via the piston movement, entering the condenser. Therefore, the sealing performance of the valve assembly significantly impacts the compressor's efficiency. Poor valve sealing can lead to gas leakage during intake, compression, and discharge, severely affecting cooling capacity. Currently, the most common leakage points in the valve assembly components are the connection between the muffler outlet and the valve plate intake port. Since the various components of the valve assembly are tightened to the crankcase cylinder end face with screws, a decrease in screw torque will weaken the tightening effect, creating gaps and causing gas leakage. Summary of the Invention

[0003] To overcome the above shortcomings, the present invention provides an embedded muffler connection structure, which has good sealing performance at the connection between the muffler outlet and the valve plate and is not prone to leakage.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an embedded muffler connection structure, including a muffler and a valve plate, a gasket is installed between the valve plate and the muffler, a boss is provided on the outlet end face of the muffler, a recessed hole is provided on the valve plate, the boss is embedded in the recessed hole, a through hole is provided on the gasket, the edge of the through hole of the gasket is sealed and installed between the outer wall of the boss and the inner wall of the recessed hole, and the outlet end face of the muffler is sealed and abutted against the gasket.

[0005] The muffler head features a boss, and correspondingly, the valve plate inlet has a recessed hole. After assembly, the boss is embedded inside the recessed hole, changing the traditional surface-to-surface connection between the muffler head and valve plate to an embedded connection. This effectively prevents gas leakage caused by reduced fit between the muffler head and valve plate due to decreased screw torque. After installation, the gasket at the edge of the through hole will be squeezed into the gap between the outer wall of the muffler boss and the side wall of the valve plate recessed hole, further enhancing the sealing effect. Therefore, the embedding method between the boss and the recessed hole includes end face embedding and side embedding, resulting in good sealing and reducing the likelihood of leakage.

[0006] Preferably, a sealing rib is provided around the boss on the outlet end face of the muffler, and the sealing rib abuts against the gasket.

[0007] After the muffler is installed, the sealing ribs abut against the gasket, forming an end face seal and improving the sealing effect.

[0008] Preferably, a sealing ring is fitted onto the outer wall of the boss, with the sealing ring positioned at the root of the boss.

[0009] To enhance the sealing effect, a sealing ring is fitted onto the outer edge of the muffler head boss. After assembly, the sealing ring and the sealing rib on the end face of the muffler head form two seals. The sealing ring can also be fitted onto the middle section or end face of the muffler head boss to further enhance the lateral and end face sealing.

[0010] Preferably, the diameter of the through hole on the gasket is smaller than the outer diameter of the boss.

[0011] The diameter of the through hole on the gasket is smaller than the outer diameter of the boss, ensuring that the gasket at the edge of the through hole can be fitted onto the boss. After the boss is installed in place, a gasket is left between the outer wall of the boss and the inner wall of the recessed hole for sealing.

[0012] Preferably, the valve plate is fastened to the cylinder head, and the outlet of the muffler is located between the cylinder head and the valve plate.

[0013] The muffler is mounted on the cylinder head and valve plate bracket, making assembly convenient and installation reliable.

[0014] Preferably, the muffler is provided with an exhaust head, the muffler outlet is located on the exhaust head, and the cylinder head is provided with a groove, with the exhaust head and the groove being adapted and connected.

[0015] The grooves on the cylinder head ensure reliable positioning of the exhaust nozzle on the muffler.

[0016] Preferably, an intake valve plate is connected to the outer end of the valve plate, and a spring is provided on the intake valve plate corresponding to the sinkhole, with the spring covering the outer end opening of the sinkhole.

[0017] The intake valve plate is connected to the valve plate, making the connection convenient and reliable.

[0018] Preferably, a sealing gasket is installed between the bottom surface of the recessed hole and the end face of the boss.

[0019] After the boss is installed into the recessed hole, the sealing gasket is tightly connected between the bottom surface of the recessed hole and the end face of the boss, adding an extra layer of seal and improving the sealing effect.

[0020] The second option involves installing a compression pad between the bottom surface of the recessed hole and the end face of the boss. A receiving cavity is provided on the outer wall of the compression pad, and the receiving cavity is filled with silicone sealant. During the process of the boss being installed into the recessed hole, the end face of the boss is pressed against the compression pad, which ruptures the receiving cavity and causes the silicone sealant to be squeezed out. After the silicone sealant cures, it accumulates between the end of the boss and the bottom of the recessed hole to achieve a seal.

[0021] During the process of inserting the boss into the countersunk hole, the receiving cavity is ruptured, causing the silicone sealant to be extruded. After curing, the silicone sealant accumulates between the end of the boss and the bottom of the countersunk hole, achieving a seal. Not only does the extrusion pad itself add a seal, but the cured silicone sealant also adds another seal, greatly improving the sealing performance between the end of the boss and the bottom of the countersunk hole.

[0022] The third option involves installing a compression pad between the bottom surface of the recessed hole and the end face of the boss. The outer wall of the compression pad has a first annular cavity and a second annular cavity. The first annular cavity contains adhesive, and the second annular cavity contains hardener. During the process of the boss being fitted into the recessed hole, the end face of the boss is pressed against the compression pad, which breaks the first and second annular cavities, causing the adhesive and hardener to be squeezed out. After the adhesive and hardener mix and harden, they accumulate between the end of the boss and the bottom of the recessed hole to achieve connection and sealing.

[0023] During the process of the boss being fitted into the countersunk hole, the first and second annular cavities are ruptured, causing the adhesive and hardener to be squeezed out. After the adhesive and hardener mix and harden, they accumulate between the end of the boss and the bottom of the countersunk hole, achieving connection and sealing. Not only does the extrusion pad itself add a layer of sealing, but the mixing and hardening of the adhesive and hardener also adds another layer of sealing. At the same time, the mixing and hardening of the adhesive and hardener improves the connection strength between the end of the boss and the bottom of the countersunk hole.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the connection between the muffler outlet and the valve plate has good sealing performance and is not prone to leakage. Attached Figure Description

[0025] Figure 1 This is an exploded view of the present invention; Figure 2 This is a partial exploded view of the present invention; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a cross-sectional view of the connection between the muffler and the valve plate in Embodiment 1 of the present invention; Figure 5 This is a cross-sectional view of the connection between the silencer and the valve plate in Embodiment 2 of the present invention; Figure 6 This is a cross-sectional view of the connection between the muffler and the valve plate in Embodiment 3 of the present invention; In the diagram: 1. Muffler, 2. Valve plate, 3. Muffler chamber, 4. Inlet, 5. Outlet, 6. Gasket, 7. Boss, 8. Recessed hole, 9. Through hole, 10. Sealing rib, 11. Sealing ring, 12. Cylinder head, 13. Exhaust head, 14. Groove, 15. Intake valve plate, 16. Spring, 17. Sealing washer, 18. Fastening screw, 19. Cylinder chamber, 20. Window, 21. Valve plate through hole, 22. Valve plate through hole, 23. Recessed groove, 24. Raised ring, 25. Positioning groove, 26. Positioning protrusion, 27. Extrusion pad, 28. Receiving cavity, 29. First annular cavity, 30. Second annular cavity. Detailed Implementation

[0026] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: An embedded muffler connection structure (see attached diagram) Figure 1 To be continued Figure 4 The system includes a muffler 1 and a valve plate 2. The muffler 1 has a silencing cavity 3, an inlet 4, and an outlet 5. The axes of the inlet 4 and outlet 5 are perpendicular, with the inlet 4 facing rearward and the outlet 5 facing rightward. Both the inlet 4 and outlet 5 are smaller than the silencing cavity 3. A gasket 6 is installed between the valve plate 2 and the muffler 1. A boss 7 is provided on the end face of the outlet 5 of the muffler 1. The valve plate 2 has a recessed hole 8 with a T-shaped structure. The boss 7 is embedded in the recessed hole 8. A through hole 9 is provided on the gasket 6. The edge of the through hole 9 of the gasket 6 is sealed between the outer wall of the boss 7 and the inner wall of the recessed hole 8. The end face of the outlet 5 of the muffler 1 is in sealing contact with the gasket 6. The outer wall of the boss 7 is parallel to the axis, or the outer wall of the boss 7 is radially inclined inward towards the end. The inclined outer wall of the boss 7 facilitates insertion into the recessed hole 8. The outer edge shape of the boss 7 can be circular, rectangular, or polygonal, depending on the assembly requirements.

[0027] A sealing rib 10 is provided around the boss 7 on the outlet 5 end face of the muffler 1, and the sealing rib 10 abuts against the gasket 6. The diameter of the through hole 9 on the gasket 6 is smaller than the outer diameter of the boss 7. The diameter of the sealing rib 10 is larger than the diameter of the through hole 9. The sealing rib 10 is integrally formed with the muffler 1. A sealing ring 11 is fitted on the outer wall of the boss 7, and the sealing ring 11 is located at the root of the boss 7. During installation, the sealing ring 11 is first fitted onto the outer wall of the boss 7. During the process of the boss 7 being inserted into the countersunk hole, the sealing ring 11 reaches the root position of the boss 7 and abuts against the gasket 6.

[0028] Valve plate 2 is fastened to cylinder head 12, and outlet 5 of muffler 1 is located between cylinder head 12 and valve plate 2. Muffler 1 has an outlet head 13, and outlet 5 is located on outlet head 13. Cylinder head 12 has a groove 14, and outlet head 13 is fitted into groove 14. Intake valve plate 15 is connected to the outer end of valve plate 2. Spring tongue 16 is provided on intake valve plate 15 corresponding to the recessed hole 8, and spring tongue 16 covers the outer opening of recessed hole 8. Sealing gasket 17 is installed between the bottom surface of recessed hole 8 and the end face of boss 7. After boss 7 is fitted into recessed hole 8, sealing gasket 17 is tightly connected between the bottom surface of recessed hole 8 and the end face of boss 7, adding an extra layer of seal and improving the sealing effect.

[0029] Several fastening screws 18 are connected to the cylinder head 12. The gasket 6, valve plate 2, and intake valve 15 are all connected to the fastening screws 18, forming a single unit. The cylinder head 12 contains a cylinder cavity 19. The gasket 6 has a corresponding window 20 communicating with the cylinder cavity 19. The valve plate 2 has a valve plate through hole 21 communicating with the cylinder cavity 19. The spring 16 of the intake valve 15 has a valve plate through hole 22 communicating with the cylinder cavity 19. A recessed groove 23 is provided on the surface of the valve plate 2 at the position corresponding to the valve plate through hole 21. The valve plate through hole 21 is located on the bottom surface of the recessed groove 23. A raised ring 24 is provided at one edge of the valve plate through hole 21, with the inner wall of the raised ring 24 inclined radially outwards towards the end face of the raised ring 24. The inner wall of the other end of the valve plate through hole 21 is arc-shaped and gradually widens towards the end face. A positioning slot 25 is provided on the right side of the muffler 1 near the air outlet 13, and a positioning protrusion 26 is provided at the lower end of the muffler 1.

[0030] The silencer 1 has a boss 7 at its head, and correspondingly, the valve plate 2 has a recessed hole 8 at its air inlet. After assembly, the boss 7 is embedded inside the recessed hole 8, changing the traditional surface-to-surface connection between the silencer 1 head and the valve plate 2 to an embedded connection. This effectively avoids gas leakage caused by reduced fit between the silencer 1 head and the valve plate 2 due to decreased screw torque. After installation, the gasket 6 at the edge of the through hole 9 will be squeezed into the gap between the outer wall of the boss 7 of the silencer 1 and the side wall of the recessed hole 8 of the valve plate 2, further increasing the sealing effect. Therefore, the embedding methods between the boss 7 and the recessed hole 8 include end face embedding and side embedding, resulting in good sealing and reducing the likelihood of leakage.

[0031] After the muffler 1 is installed, the sealing rib 10 abuts against the gasket 6, forming an end-face seal and improving the sealing effect. To further enhance the sealing effect, a sealing ring 11 is fitted onto the outer edge of the head boss 7 of the muffler 1. After assembly, the sealing ring 11 and the sealing rib 10 on the end face of the head of the muffler 1 form two seals. The sealing ring 11 can also be fitted onto the middle section or end face of the head boss 7 of the muffler 1, thereby assisting in strengthening the lateral and end-face seals. The diameter of the through hole 9 on the gasket 6 is smaller than the outer diameter of the boss 7, ensuring that the gasket 6 at the edge of the through hole 9 can be fitted onto the boss 7. After the boss 7 is installed in place, a gasket 6 is left between the outer wall of the boss 7 and the inner wall of the recessed hole 8 for sealing. After the boss 7 is installed into the recessed hole 8, the sealing gasket 17 is tightly connected between the bottom surface of the recessed hole 8 and the end face of the boss 7, adding another seal and improving the sealing effect.

[0032] With multiple seals, the embedded valve assembly forms a triple seal at the intake port. The first is the end face seal where the muffler 1 head protrusion 7 is embedded in the recessed hole 8; the second is the side-mounted seal where the gasket 6 is embedded in the gap between the muffler 1 head protrusion 7 and the recessed hole 8; and the third is the end face seal composed of the sealing ring 11 fitted around the outer edge of the muffler 1 head protrusion 7 and the sealing rib 10 on the end face of the muffler 1 head. This triple-seal structure effectively prevents gas leakage caused by a decrease in the fit between the muffler 1 outlet head 13 and the valve plate 2 due to the reduction in screw torque. This avoids gas leakage during intake, compression, and discharge processes, which could severely affect the cooling capacity and ensure reliable compressor operation.

[0033] Example 2: An embedded muffler connection structure includes a muffler 1 and a valve plate 2. A silencing cavity 3 is provided inside the muffler 1. An inlet 4 and an outlet 5 are provided on the muffler 1. The axis of the inlet 4 is perpendicular to the axis of the outlet 5. The inlet 4 faces rearward, and the outlet 5 faces rightward. The size of both the inlet 4 and the outlet 5 is smaller than the silencing cavity 3. A gasket 6 is installed between the valve plate 2 and the muffler 1. A boss 7 is provided on the end face of the outlet 5 of the muffler 1. A countersunk hole 8 is provided on the valve plate 2. The countersunk hole has a T-shaped structure. The boss 7 is embedded in the countersunk hole 8. A through hole 9 is provided on the gasket 6. The edge of the through hole 9 of the gasket 6 is sealed between the outer wall of the boss 7 and the inner wall of the countersunk hole 8. The end face of the outlet 5 of the muffler 1 is in sealing contact with the gasket 6. The outer wall of the boss 7 is parallel to the axis, or the outer wall of the boss 7 is radially inclined inward towards the end. The inclined outer wall of the boss 7 facilitates insertion into the countersunk hole 8. The outer edge shape of boss 7 can be circular, rectangular, or polygonal, depending on the assembly requirements.

[0034] A sealing rib 10 is provided around the boss 7 on the outlet 5 end face of the muffler 1, and the sealing rib 10 abuts against the gasket 6. The diameter of the through hole 9 on the gasket 6 is smaller than the outer diameter of the boss 7. The diameter of the sealing rib 10 is larger than the diameter of the through hole 9. The sealing rib 10 is integrally formed with the muffler 1. A sealing ring 11 is fitted on the outer wall of the boss 7, and the sealing ring 11 is located at the root of the boss 7. During installation, the sealing ring 11 is first fitted onto the outer wall of the boss 7. During the process of the boss 7 being inserted into the countersunk hole, the sealing ring 11 reaches the root position of the boss 7 and abuts against the gasket 6.

[0035] Valve plate 2 is fastened to cylinder head 12, and outlet 5 of muffler 1 is located between cylinder head 12 and valve plate 2. Muffler 1 has an outlet head 13, and outlet 5 is located on outlet head 13. Cylinder head 12 has a groove 14, and outlet head 13 is fitted into groove 14. Intake valve plate 15 is connected to the outer end of valve plate 2. Spring tongue 16 is provided on intake valve plate 15 corresponding to the recessed hole 8, and spring tongue 16 covers the outer opening of recessed hole 8. Figure 5 As shown, a compression pad 27 is installed between the bottom surface of the recessed hole 8 and the end face of the boss 7. A receiving cavity 28 is provided on the outer wall of the compression pad 27, and the receiving cavity 28 is filled with silicone sealant. Several easily broken indentations are spaced circumferentially on the side wall of the receiving cavity 28 to facilitate compression and breaking of these indentations. During the process of the boss 7 being inserted into the recessed hole 8, the end face of the boss 7 is pressed against the compression pad 27, rupturing the receiving cavity 28 and causing the silicone sealant to be extruded. After curing, the silicone sealant accumulates between the end of the boss 7 and the bottom of the recessed hole 8, achieving a seal. This not only adds a seal to the compression pad 27 itself, but also to the cured silicone sealant, greatly improving the sealing performance between the end of the boss 7 and the bottom of the recessed hole 8.

[0036] Several fastening screws 18 are connected to the cylinder head 12. The gasket 6, valve plate 2, and intake valve 15 are all connected to the fastening screws 18, forming a single unit. The cylinder head 12 contains a cylinder cavity 19. The gasket 6 has a corresponding window 20 communicating with the cylinder cavity 19. The valve plate 2 has a valve plate through hole 21 communicating with the cylinder cavity 19. The spring 16 of the intake valve 15 has a valve plate through hole 22 communicating with the cylinder cavity 19. A recessed groove 23 is provided on the surface of the valve plate 2 at the position corresponding to the valve plate through hole 21. The valve plate through hole 21 is located on the bottom surface of the recessed groove 23. A protruding ring 24 is provided at one edge of the valve plate through hole 21, with the inner wall of the protruding ring 24 inclined radially outwards towards the end face of the protruding ring 24. The inner wall of the other end of the valve plate through hole 21 is arc-shaped and gradually widens towards the end face. A positioning slot 25 is provided on the right side of the muffler 1 near the air outlet 13, and a positioning protrusion 26 is provided at the lower end of the muffler 1.

[0037] The silencer 1 has a boss 7 at its head, and correspondingly, the valve plate 2 has a recessed hole 8 at its air inlet. After assembly, the boss 7 is embedded inside the recessed hole 8, changing the traditional surface-to-surface connection between the silencer 1 head and the valve plate 2 to an embedded connection. This effectively avoids gas leakage caused by reduced fit between the silencer 1 head and the valve plate 2 due to decreased screw torque. After installation, the gasket 6 at the edge of the through hole 9 will be squeezed into the gap between the outer wall of the boss 7 of the silencer 1 and the side wall of the recessed hole 8 of the valve plate 2, further increasing the sealing effect. Therefore, the embedding methods between the boss 7 and the recessed hole 8 include end face embedding and side embedding, resulting in good sealing and reducing the likelihood of leakage.

[0038] After the muffler 1 is installed, the sealing rib 10 abuts against the gasket 6, forming an end-face seal and improving the sealing effect. To further enhance the sealing effect, a sealing ring 11 is fitted onto the outer edge of the head boss 7 of the muffler 1. After assembly, the sealing ring 11 and the sealing rib 10 on the end face of the head of the muffler 1 form two seals. The sealing ring 11 can also be fitted onto the middle section or end face of the head boss 7 of the muffler 1, thereby assisting in strengthening the lateral and end-face seals. The diameter of the through hole 9 on the gasket 6 is smaller than the outer diameter of the boss 7, ensuring that the gasket 6 at the edge of the through hole 9 can be fitted onto the boss 7. After the boss 7 is installed in place, a gasket 6 is left between the outer wall of the boss 7 and the inner wall of the recessed hole 8 for sealing. After the boss 7 is installed into the recessed hole 8, the sealing gasket 17 is tightly connected between the bottom surface of the recessed hole 8 and the end face of the boss 7, adding another seal and improving the sealing effect.

[0039] With multiple seals, the embedded valve assembly forms a triple seal at the intake port. The first is the end face seal where the muffler 1 head protrusion 7 is embedded in the recessed hole 8; the second is the side-mounted seal where the gasket 6 is embedded in the gap between the muffler 1 head protrusion 7 and the recessed hole 8; and the third is the end face seal composed of the sealing ring 11 fitted around the outer edge of the muffler 1 head protrusion 7 and the sealing rib 10 on the end face of the muffler 1 head. This triple-seal structure effectively prevents gas leakage caused by a decrease in the fit between the muffler 1 outlet head 13 and the valve plate 2 due to the reduction in screw torque. This avoids gas leakage during intake, compression, and discharge processes, which could severely affect the cooling capacity and ensure reliable compressor operation.

[0040] Example 3: An embedded muffler connection structure includes a muffler 1 and a valve plate 2. A silencing cavity 3 is provided inside the muffler 1. An inlet 4 and an outlet 5 are provided on the muffler 1. The axis of the inlet 4 is perpendicular to the axis of the outlet 5. The inlet 4 faces rearward, and the outlet 5 faces rightward. The size of both the inlet 4 and the outlet 5 is smaller than the silencing cavity 3. A gasket 6 is installed between the valve plate 2 and the muffler 1. A boss 7 is provided on the end face of the outlet 5 of the muffler 1. A countersunk hole 8 is provided on the valve plate 2. The countersunk hole has a T-shaped structure. The boss 7 is embedded in the countersunk hole 8. A through hole 9 is provided on the gasket 6. The edge of the through hole 9 of the gasket 6 is sealed between the outer wall of the boss 7 and the inner wall of the countersunk hole 8. The end face of the outlet 5 of the muffler 1 is in sealing contact with the gasket 6. The outer wall of the boss 7 is parallel to the axis, or the outer wall of the boss 7 is radially inclined inward towards the end. The inclined outer wall of the boss 7 facilitates insertion into the countersunk hole 8. The outer edge shape of boss 7 can be circular, rectangular, or polygonal, depending on the assembly requirements.

[0041] A sealing rib 10 is provided around the boss 7 on the outlet 5 end face of the muffler 1, and the sealing rib 10 abuts against the gasket 6. The diameter of the through hole 9 on the gasket 6 is smaller than the outer diameter of the boss 7. The diameter of the sealing rib 10 is larger than the diameter of the through hole 9. The sealing rib 10 is integrally formed with the muffler 1. A sealing ring 11 is fitted on the outer wall of the boss 7, and the sealing ring 11 is located at the root of the boss 7. During installation, the sealing ring 11 is first fitted onto the outer wall of the boss 7. During the process of the boss 7 being inserted into the countersunk hole, the sealing ring 11 reaches the root position of the boss 7 and abuts against the gasket 6.

[0042] Valve plate 2 is fastened to cylinder head 12, and outlet 5 of muffler 1 is located between cylinder head 12 and valve plate 2. Muffler 1 has an outlet head 13, and outlet 5 is located on outlet head 13. Cylinder head 12 has a groove 14, and outlet head 13 is fitted into groove 14. Intake valve plate 15 is connected to the outer end of valve plate 2. Spring tongue 16 is provided on intake valve plate 15 corresponding to the recessed hole 8, and spring tongue 16 covers the outer opening of recessed hole 8. Figure 6 As shown, a compression pad 27 is installed between the bottom surface of the recessed hole 8 and the end face of the boss 7. A first annular cavity 29 and a second annular cavity 30 are provided on the outer wall of the compression pad 27. The first annular cavity 29 contains adhesive, and the second annular cavity 30 contains hardener. Several easily broken marks are circumferentially spaced on the side walls of both the first annular cavity 29 and the second annular cavity 30 to facilitate compression and breakage, thereby extruding and mixing the adhesive and hardener. During the process of the boss 7 being inserted into the recessed hole 8, the end face of the boss 7 is pressed against the compression pad 27, breaking the first annular cavity 29 and the second annular cavity 30, causing the adhesive and hardener to be extruded. After the adhesive and hardener mix and harden, they accumulate between the end of the boss 7 and the bottom of the recessed hole 8, achieving connection and sealing. The extruded and mixed adhesive and hardener form AB glue, which has high bonding strength, high hardness, and high chemical resistance.

[0043] During the process of fitting the boss 7 into the recessed hole 8, the first annular cavity 29 and the second annular cavity 30 are ruptured, causing the adhesive and hardener to be squeezed out. After the adhesive and hardener mix and harden, they accumulate between the end of the boss 7 and the bottom of the recessed hole 8, achieving connection and sealing. Not only does the extrusion pad 27 itself add a seal, but the mixture and hardening of the adhesive and hardener also add a seal. At the same time, the mixture and hardening of the adhesive and hardener improve the connection strength between the end of the boss 7 and the bottom of the recessed hole 8.

[0044] Several fastening screws 18 are connected to the cylinder head 12. The gasket 6, valve plate 2, and intake valve 15 are all connected to the fastening screws 18, forming a single unit. The cylinder head 12 contains a cylinder cavity 19. The gasket 6 has a corresponding window 20 communicating with the cylinder cavity 19. The valve plate 2 has a valve plate through hole 21 communicating with the cylinder cavity 19. The spring 16 of the intake valve 15 has a valve plate through hole 22 communicating with the cylinder cavity 19. A recessed groove 23 is provided on the surface of the valve plate 2 at the position corresponding to the valve plate through hole 21. The valve plate through hole 21 is located on the bottom surface of the recessed groove 23. A protruding ring 24 is provided at one edge of the valve plate through hole 21, with the inner wall of the protruding ring 24 inclined radially outwards towards the end face of the protruding ring 24. The inner wall of the other end of the valve plate through hole 21 is arc-shaped and gradually widens towards the end face. A positioning slot 25 is provided on the right side of the muffler 1 near the air outlet 13, and a positioning protrusion 26 is provided at the lower end of the muffler 1.

[0045] The silencer 1 has a boss 7 at its head, and correspondingly, the valve plate 2 has a recessed hole 8 at its air inlet. After assembly, the boss 7 is embedded inside the recessed hole 8, changing the traditional surface-to-surface connection between the silencer 1 head and the valve plate 2 to an embedded connection. This effectively avoids gas leakage caused by reduced fit between the silencer 1 head and the valve plate 2 due to decreased screw torque. After installation, the gasket 6 at the edge of the through hole 9 will be squeezed into the gap between the outer wall of the boss 7 of the silencer 1 and the side wall of the recessed hole 8 of the valve plate 2, further increasing the sealing effect. Therefore, the embedding methods between the boss 7 and the recessed hole 8 include end face embedding and side embedding, resulting in good sealing and reducing the likelihood of leakage.

[0046] After the muffler 1 is installed, the sealing rib 10 abuts against the gasket 6, forming an end-face seal and improving the sealing effect. To further enhance the sealing effect, a sealing ring 11 is fitted onto the outer edge of the head boss 7 of the muffler 1. After assembly, the sealing ring 11 and the sealing rib 10 on the end face of the head of the muffler 1 form two seals. The sealing ring 11 can also be fitted onto the middle section or end face of the head boss 7 of the muffler 1, thereby assisting in strengthening the lateral and end-face seals. The diameter of the through hole 9 on the gasket 6 is smaller than the outer diameter of the boss 7, ensuring that the gasket 6 at the edge of the through hole 9 can be fitted onto the boss 7. After the boss 7 is installed in place, a gasket 6 is left between the outer wall of the boss 7 and the inner wall of the recessed hole 8 for sealing. After the boss 7 is installed into the recessed hole 8, the sealing gasket 17 is tightly connected between the bottom surface of the recessed hole 8 and the end face of the boss 7, adding another seal and improving the sealing effect.

[0047] With multiple seals, the embedded valve assembly forms a triple seal at the intake port. The first is the end face seal where the muffler 1 head protrusion 7 is embedded in the recessed hole 8; the second is the side-mounted seal where the gasket 6 is embedded in the gap between the muffler 1 head protrusion 7 and the recessed hole 8; and the third is the end face seal composed of the sealing ring 11 fitted around the outer edge of the muffler 1 head protrusion 7 and the sealing rib 10 on the end face of the muffler 1 head. This triple-seal structure effectively prevents gas leakage caused by a decrease in the fit between the muffler 1 outlet head 13 and the valve plate 2 due to the reduction in screw torque. This avoids gas leakage during intake, compression, and discharge processes, which could severely affect the cooling capacity and ensure reliable compressor operation.

[0048] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. An embedded muffler connection structure, characterized in that, The device includes a muffler and a valve plate. A gasket is installed between the valve plate and the muffler. A boss is provided on the outlet end face of the muffler. A recessed hole is provided on the valve plate. The boss is embedded in the recessed hole. A through hole is provided on the gasket. The edge of the through hole of the gasket is sealed between the outer wall of the boss and the inner wall of the recessed hole. The outlet end face of the muffler is in sealing contact with the gasket. A compression pad is installed between the bottom surface of the recessed hole and the end face of the boss. A receiving cavity is provided on the outer wall of the compression pad. The receiving cavity is filled with silicone sealant. During the process of the boss being embedded into the recessed hole, the end face of the boss is pressed against the compression pad, which ruptures the receiving cavity and causes the silicone sealant to be squeezed out. After the silicone sealant cures, it accumulates between the end of the boss and the bottom of the recessed hole to achieve a seal.

2. The embedded muffler connection structure according to claim 1, characterized in that, A sealing rib is provided around the boss on the outlet end face of the muffler, and the sealing rib abuts against the gasket.

3. The embedded muffler connection structure according to claim 1, characterized in that, A sealing ring is fitted onto the outer wall of the boss, and the sealing ring is placed at the root of the boss.

4. The embedded muffler connection structure according to claim 1, characterized in that, The diameter of the through hole on the gasket is smaller than the outer diameter of the boss.

5. The embedded muffler connection structure according to claim 1, characterized in that, The valve plate is fastened to the cylinder head, and the outlet of the muffler is located between the cylinder head and the valve plate.

6. The embedded muffler connection structure according to claim 5, characterized in that, An exhaust head is provided on the muffler, and the outlet of the muffler is located on the exhaust head. A groove is provided on the cylinder head, and the exhaust head is adapted to connect with the groove.

7. The embedded muffler connection structure according to claim 1, characterized in that, The outer end of the valve plate is connected to the intake valve plate. The intake valve plate is equipped with a spring tongue corresponding to the sink hole, and the spring tongue covers the outer end opening of the sink hole.

8. An embedded muffler connection structure according to any one of claims 1 to 7, characterized in that, A sealing gasket is installed between the bottom surface of the recessed hole and the end face of the boss.

9. An embedded muffler connection structure, characterized in that, The device includes a muffler and a valve plate. A gasket is installed between the valve plate and the muffler. A boss is provided on the outlet end face of the muffler. A recessed hole is provided on the valve plate. The boss is embedded in the recessed hole. A through hole is provided on the gasket. The edge of the through hole of the gasket is sealed between the outer wall of the boss and the inner wall of the recessed hole. The outlet end face of the muffler is in sealing contact with the gasket. A compression pad is installed between the bottom surface of the recessed hole and the end face of the boss. A first annular cavity and a second annular cavity are provided on the outer wall of the compression pad. The first annular cavity contains adhesive, and the second annular cavity contains hardener. During the process of the boss being embedded into the recessed hole, the end face of the boss is pressed against the compression pad, which breaks the first and second annular cavities, causing the adhesive and hardener to be squeezed out. After the adhesive and hardener mix and harden, they accumulate between the end of the boss and the bottom of the recessed hole to achieve connection and sealing.

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