CN217496101U

CN217496101U - Air chamber pressurizing assembly with improved structure

Info

Publication number: CN217496101U
Application number: CN202221410535.2U
Authority: CN
Inventors: 林楚勇
Original assignee: Wenling Aoda Machinery Co ltd
Current assignee: Wenling Aoda Machinery Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-27
Anticipated expiration: 2032-06-06

Abstract

The utility model provides a construction improvement's air chamber pressure boost subassembly belongs to the auto-parts field. It has solved the current not good problem of booster structural stability. The air chamber pressurizing assembly with the improved structure comprises a servo air chamber and an output push rod vertically arranged in the servo air chamber, wherein a piston disc for dividing an inner cavity of the servo air chamber into an upper cavity and a lower cavity is horizontally arranged in the servo air chamber, a spring for enabling the piston disc to have the trend of moving downwards is also arranged in the upper cavity, an air inlet communicated with the lower cavity is arranged at the bottom of the servo air chamber, a groove is formed in the bottom of the piston disc, a cylindrical rubber piece is inserted in the groove, a threaded hole which is axially arranged along the output push rod in a penetrating manner is formed in the piston disc, a through hole is correspondingly formed in the rubber piece, the lower end of the output push rod sequentially penetrates through the threaded hole and the through hole and is fixedly provided with a pressing piece, an annular blank holder is arranged on the pressing piece, and two sides of the top wall of the rubber piece are respectively tightly pressed on the bottom wall of the groove and the annular blank holder; the output push rod is provided with an external thread. This air chamber pressure boost subassembly of institutional advancement stable in structure.

Description

Air chamber pressurizing assembly with improved structure

Technical Field

The utility model belongs to the auto-parts field relates to an air chamber pressure boost subassembly, especially a construction improvement's air chamber pressure boost subassembly.

Background

The air chamber supercharging component is an important component of an air chamber supercharger, mainly relates to a gas supercharging part, and has the structure as an air chamber supercharger (application number: 201520871152.9) previously proposed by the applicant, and comprises a servo air chamber and an output push rod positioned in the servo air chamber, wherein the end part of the output push rod is fixedly connected with a piston disc which divides the servo air chamber into an upper chamber and a lower chamber, and a return spring which enables the piston disc to return is arranged in the upper chamber; the bottom of the piston disc is vulcanized and fixedly connected with a rubber gasket.

In the supercharger, the rubber gasket is used for replacing the piston disc to be in contact with the bottom wall of the servo air chamber, so that the buffering effect is achieved, and the collision noise is reduced. However, the rubber gasket is easily detached after a long-term collision, which affects the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a structurally improved air chamber pressurizing assembly with stable structure.

The purpose of the utility model can be realized by the following technical proposal: the air chamber pressurizing assembly with improved structure comprises a servo air chamber and an output push rod vertically arranged in the servo air chamber, a piston disc for dividing an inner cavity of the servo air chamber into an upper cavity and a lower cavity is horizontally arranged in the servo air chamber, the output push rod is positioned in the upper cavity, a spring which enables the piston disc to have a downward moving trend is arranged in the upper cavity, an air inlet which is communicated with the lower cavity is arranged at the bottom of the servo air chamber, a groove is arranged at the bottom of the piston disc, a cylindrical rubber part which is matched with the groove is inserted in the groove, an annular flanging is formed on the outer wall of the lower end of the rubber part and pressed at the edge of the notch of the groove, the device is characterized in that a threaded hole which penetrates through the piston disc along the axial direction of the output push rod is formed in the piston disc, a through hole is correspondingly formed in the rubber part, the lower end of the output push rod sequentially penetrates through the threaded hole and the through hole and is fixedly provided with a pressing part, an annular pressing edge which is coaxial with the output push rod is arranged on the pressing part, and two sides of the top wall of the rubber part are respectively tightly pressed on the bottom wall of the groove and the annular pressing edge; the output push rod is provided with an external thread matched with the threaded hole, and the output push rod forms sealing with the wall of the threaded hole through the o-shaped ring.

Set up rubber spare roof both sides and press respectively on recess diapire and annular pressure edge, effectively restrict the rubber spare in the axial, avoid the rubber spare to deviate from the recess to stably replace piston disc and servo air chamber diapire contact reduction noise, have structure and job stabilization's advantage.

In the air chamber pressurizing assembly with the improved structure, the pressing piece is barrel-shaped, the upper end of the pressing piece is opened, the lower end of the pressing piece is closed, the pressing piece is screwed outside the output push rod, and the annular blank pressing is integrally formed on the outer side wall of the pressing piece. By adopting the design, the pressing piece is convenient to be connected with the output push rod, and the lower orifice of the threaded hole is sealed by matching the pressing piece, the output push rod and the rubber piece, so that a sealing path formed between the output push rod and the piston disc is prolonged, and the structural stability of the pressurizing assembly is further improved.

As another scheme, in the air chamber pressurizing assembly with the improved structure, the pressing piece is annular and is screwed outside the output push rod, and the annular pressing edge is integrally formed on the outer side wall of the pressing piece.

In foretell structure improvement's air chamber pressure boost subassembly, the air inlet just sets up to the recess, pastes on the casting die bottom surface and pastes and is fixed with the rubber block that is the disk shape, and both central axis collineations of rubber block and casting die, and the rubber block external diameter is greater than annular blank pressing external diameter, makes the gas impact who gets into from the air inlet on the rubber block to further reduce noise at work.

In the air chamber pressurizing assembly with the improved structure, the rubber block is fixedly connected with the pressing piece in a bonding mode.

In the air chamber pressurizing assembly with the improved structure, the rubber block is completely arranged in the rubber piece, so that the design is convenient.

In the air chamber pressurizing assembly with the improved structure, the servo air chamber extends downwards from the air inlet to form a tubular air inlet part in an integrated manner, and the air inlet part and the output push rod are coaxially arranged, so that the servo air chamber is conveniently connected with air supply equipment.

In the air chamber pressurizing assembly with the improved structure, the air inlet part is provided with an external thread.

In the air chamber pressurizing assembly with the improved structure, the inner wall of the upper end of the air inlet part is a conical surface with the diameter gradually reduced from top to bottom, the upper end of the conical surface extends to the inner bottom wall of the servo air chamber, and the maximum diameter of the conical surface is larger than the outer diameter of the rubber block.

In the air chamber pressurizing assembly with the improved structure, the outer side wall of the output push rod is provided with the annular groove, the o-shaped ring is arranged in the annular groove, and the outer peripheral surface of the o-shaped ring is abutted against the inner wall of the threaded hole.

Compared with the prior art, the air chamber pressurizing assembly with the improved structure has the following advantages:

1. set up rubber spare roof both sides and press respectively on recess diapire and annular pressure edge, effectively restrict the rubber spare in the axial, avoid the rubber spare to deviate from the recess to stably replace piston disc and servo air chamber diapire contact reduction noise, have structure and job stabilization's advantage.

2. The casting die is barrel-shaped, the upper end of the casting die is open, the lower end of the casting die is closed, the casting die is screwed outside the output push rod, and the annular blank pressing is integrally formed on the outer side wall of the casting die, so that the casting die is conveniently connected with the output push rod, the lower orifice of the threaded hole is sealed through matching of the casting die, the output push rod and the rubber piece, a sealing path formed between the output push rod and the piston disc is prolonged, and the structural stability of the pressurizing assembly is further improved.

Drawings

FIG. 1 is a schematic view of a plenum chamber assembly with an improved structure.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

In the figure, 1, a servo air chamber; 1a, an upper cavity; 1b, a lower cavity; 1c, an air inlet; 1d, an air inlet part; 1e, a conical surface; 2. an output push rod; 3. a piston disc; 4. a one-way valve; 5. a spring; 6. a rubber member; 6a, annular flanging; 7. an o-shaped ring; 8. pressing parts; 8a, annular blank pressing; 9. a rubber block.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the air chamber pressurizing assembly with the improved structure comprises a servo air chamber 1 and an output push rod 2 vertically arranged in the servo air chamber 1, wherein the upper end of the output push rod 2 extends out of the servo air chamber 1, and in an actual product, the upper end of the output push rod 2 forms a seal with the servo air chamber 1 through a packing (not shown).

In particular, in the case of a system,

a piston disc 3 is horizontally arranged in the servo air chamber 1, and the piston disc 3 divides the inner cavity of the servo air chamber 1 into an upper cavity 1a and a lower cavity 1 b. Wherein, the top of the upper cavity 1a is provided with a one-way valve 4 communicated with the upper cavity 1a for exhausting; the output push rod 2 is arranged in the upper cavity 1a, and a spring 5 enabling the piston disc 3 to move downwards is further arranged in the upper cavity 1 a. In this embodiment, the preferred type of spring 5 is a conical spring 5, the conical spring 5 is sleeved on the output push rod 2, and two ends of the conical spring 5 are respectively pressed on the top wall of the upper cavity 1a and the piston disc 3. The bottom of the servo air chamber 1 is provided with an air inlet 1c communicated with the lower cavity 1 b.

As shown in fig. 1, the bottom of the piston disc 3 is provided with a groove, and in this case, the air inlet 1c is arranged opposite to the groove. The interior grafting of recess has the rubber spare 6 that is the tube-shape and matches with the recess, and the outer wall of rubber spare 6 presses on the recess inner wall. In this embodiment it is preferred that the axial cross-section of the rubber element 6 and the groove is inverted u-shaped. Further, an annular flange 6a is formed on the outer wall of the lower end of the rubber member 6, and the annular flange 6a is pressed on the edge of the notch of the groove.

The piston disc 3 is provided with a threaded hole which is axially penetrated and arranged along the output push rod 2, the rubber piece 6 is correspondingly provided with a through hole, and the lower end of the output push rod 2 sequentially penetrates through the threaded hole and the through hole and is fixed with a pressing piece 8. Wherein, have the external screw thread with screw hole matching on the output push rod 2, output push rod 2 spiro union is in the screw hole promptly, and output push rod 2 forms sealedly through between o shape circle 7 and the screw hole pore wall. The casting die 8 is in rubber spare 6, has the annular blank pressing 8a coaxial with output push rod 2 on this casting die 8, and 6 roof both sides of rubber spare sticiss respectively on recess diapire and annular blank pressing 8a to effectively restrict rubber spare 6 in the axial, avoid rubber spare 6 to deviate from the recess, thereby stably replace piston disc 3 and the 1 diapire contact of servo air chamber and reduce noise, have structure and job stabilization's advantage.

In the present embodiment, it is preferred that,

as shown in fig. 1 and 2, the pressing member 8 has the following structure: the casting die 8 is barrel-shaped, the upper end of the casting die 8 is open, the lower end of the casting die is closed, the casting die 8 is screwed outside the output push rod 2, and the annular blank pressing 8a is integrally formed on the outer side wall of the casting die 8, so that the casting die 8 is conveniently connected with the output push rod 2, and the lower orifice of the threaded hole is sealed by matching the casting die 8, the output push rod 2 and the rubber piece 6, so that the sealing path formed between the output push rod 2 and the piston disc 3 is prolonged, and the structural stability of the pressurizing assembly is further improved.

Further, a rubber block 9 in a circular block shape is attached and fixed to the bottom surface of the pressing member 8, the central axes of the rubber block 9 and the pressing member 8 are collinear, and the outer diameter of the rubber block 9 is larger than that of the annular pressing edge 8a, so that air entering from the air inlet 1c impacts on the rubber block 9, and working noise is further reduced. Preferably, the rubber block 9 is completely arranged in the rubber member 6, and the rubber block 9 and the pressing member 8 are fixedly bonded.

The o-ring 7 is mounted as follows: an annular groove is formed in the outer side wall of the output push rod 2, the o-shaped ring 7 is arranged in the annular groove, and the outer peripheral surface of the o-shaped ring 7 is abutted to the inner wall of the threaded hole.

As shown in fig. 1 and 2, the servo air chamber 1 extends downward from the air inlet 1c to form a tubular air inlet portion 1d integrally, and the air inlet portion 1d and the output push rod 2 are coaxially arranged to facilitate connection of the servo air chamber 1 with an air supply device. Preferably, the air inlet part 1d is provided with an external thread; the inner wall of the upper end of the air inlet part 1d is a conical surface 1e with the diameter gradually reduced from top to bottom, the upper end of the conical surface 1e extends to the inner bottom wall of the servo air chamber 1, and the maximum diameter of the conical surface 1e is larger than the outer diameter of the rubber block 9.

Example two

The structure and principle of the second embodiment are basically the same as those of the first embodiment, and different points are as follows: the pressing piece 8 is ring-shaped and is screwed outside the output push rod 2, and the ring-shaped pressing edge 8a is integrally formed on the outer side wall of the pressing piece 8.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The air chamber pressurizing assembly with the improved structure comprises a servo air chamber (1) and an output push rod (2) vertically arranged in the servo air chamber (1), wherein a piston disc (3) for dividing an inner cavity of the servo air chamber into an upper cavity (1a) and a lower cavity (1b) is horizontally arranged in the servo air chamber (1), the output push rod (2) is positioned in the upper cavity (1a), a spring (5) enabling the piston disc (3) to move downwards is further arranged in the upper cavity (1a), an air inlet (1c) communicated with the lower cavity (1b) is arranged at the bottom of the servo air chamber (1), a groove is formed in the bottom of the piston disc (3), a cylindrical rubber piece (6) matched with the groove is inserted in the groove, an annular flanging (6a) is formed in the outer wall of the lower end of the rubber piece (6), and the annular flanging (6a) is pressed on the edge of a groove opening, and is characterized in that a threaded hole which penetrates through the output push rod (2) axially is formed in the piston disc (3), a through hole is correspondingly formed in the rubber part (6), the lower end of the output push rod (2) sequentially penetrates through the threaded hole and the through hole and is fixedly provided with a pressing part (8), an annular blank pressing part (8a) coaxial with the output push rod (2) is arranged on the pressing part (8), and two sides of the top wall of the rubber part (6) are respectively tightly pressed on the bottom wall of the groove and the annular blank pressing part (8 a); the output push rod (2) is provided with an external thread matched with the threaded hole, and the output push rod (2) forms sealing with the wall of the threaded hole through an o-shaped ring (7).

2. The plenum assembly with improved structure as claimed in claim 1, wherein the pressing member (8) is formed in a barrel shape with an open upper end and a closed lower end, the pressing member (8) is screwed to the output push rod (2), and the annular pressing edge (8a) is integrally formed on the outer side wall of the pressing member (8).

3. The improved plenum assembly as set forth in claim 1, wherein the pressing member (8) is formed in a ring shape and is screwed to the output rod (2), and the annular pressing edge (8a) is integrally formed on the outer side wall of the pressing member (8).

4. The plenum assembly with improved structure as claimed in claim 1, wherein the air inlet (1c) is disposed opposite to the groove, the pressing member (8) is attached and fixed with a block rubber (9) in a shape of a circular block on the bottom surface, the central axes of the block rubber (9) and the pressing member (8) are collinear, and the outer diameter of the block rubber (9) is larger than that of the annular pressing edge (8 a).

5. The plenum assembly with improved structure as set forth in claim 4, wherein the rubber block (9) and the pressing member (8) are bonded and fixed.

6. A structurally improved plenum module as claimed in claim 4, characterized in that the rubber block (9) is entirely in the rubber member (6).

7. The plenum assembly with improved structure as claimed in claim 1, wherein the servo plenum (1) is integrally formed with a tubular intake portion (1d) extending downward from the intake port (1c), and the intake portion (1d) and the output push rod (2) are coaxially arranged.

8. The improved plenum assembly of claim 7, wherein the air inlet portion (1d) is externally threaded.

9. The plenum assembly with improved structure as claimed in claim 7 or 8, wherein the inner wall of the upper end of the air inlet portion (1d) is a tapered surface (1e) with a diameter gradually decreasing from top to bottom, the upper end of the tapered surface (1e) extends to the inner bottom wall of the servo air chamber (1), and the maximum diameter of the tapered surface (1e) is larger than the outer diameter of the rubber block (9).

10. The air chamber supercharging assembly with the improved structure as claimed in claim 1, wherein an annular groove is formed on the outer side wall of the output push rod (2), the o-shaped ring (7) is arranged in the annular groove, and the outer peripheral surface of the o-shaped ring (7) abuts against the inner wall of the threaded hole.