Cylinder structure with high sealing performance

Abstract

The utility model discloses a cylinder structure with high sealing performance, which particularly relates to the technical field of cylinders and comprises a clutch plate, a cylinder and a fixing ring, a connecting cylinder is arranged on one side of the clutch plate, the cylinder is mounted at one end, far away from the clutch plate, in the connecting cylinder, and the fixing ring is arranged at one end, close to the clutch plate, of the cylinder. An extension rod is arranged in the fixing ring in a penetrating manner; one end of an extension rod for pushing is rotationally connected with the clutch disc; one end, far away from the clutch disc, of the extension rod penetrates through the interior of the cylinder and is connected with a driving gear; a fixing ring used for sleeving is tightly attached to the outer wall of the extension rod in a sleeving mode, sealing rings are arranged at the positions, close to the extension rod, of the two ends of the fixing ring, and an extrusion plate is arranged at the end, away from the air cylinder, of the fixing ring; and a connecting pipe penetrates through one end, far away from the extension rod, of the cylinder for pushing. The utility model has the advantages that the cylinder is effectively sealed, and the extension rod is prevented from moving to drive looseness.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinders, in particular to a high-sealing cylinder structure. Background Art

[0002] The pneumatic clutch plays a key role in a vehicle's starting system. Its primary function is to transmit power during engine startup, effectively connecting the engine to the transmission system. A cylinder is located at one end of the pneumatic clutch, enabling it to push the corresponding clutch plate to move.

[0003] However, in actual use, due to the friction of the cylinder, the sealing on one side of the extended end of the cylinder body often occurs, resulting in gas leakage. Therefore, a cylinder structure with high sealing performance is required. The sealing structure is subject to frequent reciprocating movement and works in a high temperature and high pressure environment, which easily leads to the loss of the sealing ring, thereby affecting the performance of the starting seal. Therefore, a sealing structure that can be self-sealed is required. Utility Model Content

[0004] The purpose of the utility model is to provide a high-sealing cylinder structure, which solves the existing problem of needing a high-sealing cylinder structure.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a highly sealed cylinder structure, comprising a clutch plate, a cylinder, and a fixed ring; a connecting tube is provided on one side of the clutch plate, a cylinder is mounted on the end of the connecting tube away from the clutch plate, a fixed ring is provided on the end of the cylinder close to the clutch plate, and a protruding rod is provided inside the fixed ring;

[0006] One end of the extension rod for pushing is rotatably connected to the clutch plate, and the end of the extension rod away from the clutch plate passes through the interior of the cylinder and is connected to the driving gear;

[0007] The fixing ring used for sleeve connection is tightly fitted with the outer wall of the extension rod, and closed rings are provided at both ends of the fixing ring near the extension rod, and an extrusion plate is provided at the end of the fixing ring away from the cylinder;

[0008] A connecting pipe is provided inside the end of the cylinder used for pushing away from the extending rod, and the driving gear and the inner wall of the cylinder are fitted and slid with each other.

[0009] Preferably, one side of the outer wall of the clutch plate is fixedly connected to the connecting cylinder, and a driving gear is fixedly connected around the outer wall of one end of the connecting cylinder away from the clutch plate, and the driving gear is meshed with the driving gear of the external driving device.

[0010] Preferably, the cylinder is sleeved with a sleeve ring around the outer wall near the fixed ring, and the two ends of the fixed ring are inclined toward the center near the side of the extension rod, and the outer wall of the closed ring is inclined and fitted with the inclined surface of the fixed ring corresponding to each other.

[0011] Preferably, the extrusion plate and the closed ring are pressed against each other, and one end of the cylinder and one side of the closed ring are pressed against each other.

[0012] Preferably, a plurality of fixing bolts are arranged around the outer wall of the fixing ring, and the fixing bolts are fixed to one end of the cylinder, and one end of the fixing bolts passes through the interior of the extrusion plate and is threadedly connected to a fixing nut.

[0013] Preferably, a connecting spring is provided inside the cylinder at one end away from the extending rod and around the outer wall of the extending rod, one end of the connecting spring is fixed to the side wall of the closing plate, and the end of the connecting spring away from the closing plate is fixed inside the cylinder at one end close to the extending rod.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] The sealing piece fits with the inner wall of the cylinder to achieve sealing, which can effectively prevent gas leakage, so that the sealing ring is driven to be squeezed toward one side of the cylinder, so that it is squeezed and kept sealed. At the same time, since an inclined surface is provided at the center of both ends of the fixed ring, the sealing ring of the fixed ring close to one end of the cylinder is squeezed toward the inside of the fixed ring, and then the sealing ring is squeezed toward the center along the inclined surface of one end of the fixed ring to achieve a close fit with the extension rod and maintain a seal. At the same time, when the extension rod contracts, it can drive the sealing ring away from one end of the cylinder to move toward the inside of the fixed ring, so that it can maintain the squeezing of the fixed ring and avoid the squeezing and loosening of the fixed ring. At the same time, the sealing ring is squeezed toward the center by the inclined surface of one end of the fixed ring to further maintain the sealing fit with the extension rod and avoid gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of the connecting tube of the present invention;

[0019] Figure 3 This is a cross-sectional view of the internal structure of the cylinder of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the connection between the cylinder and the extension rod of the utility model;

[0021] Figure 5 It is a schematic cross-sectional view of the outer wall structure of the extension rod of the present invention.

[0022] Description of reference numerals:

[0023] 1. Clutch plate; 101. Connecting cylinder; 102. Driving gear; 2. Cylinder; 201. Socket ring; 202. Connecting pipe; 3. Fixing ring; 301. Extrusion plate; 302. Closing ring; 4. Extending rod; 401. Closing plate; 402. Connecting spring; 5. Fixing bolt; 501. Fixing nut. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides Figure 1-5 The shown structure comprises a high-sealing cylinder, including a clutch plate 1, a cylinder 2 and a fixing ring 3. A connecting tube 101 is provided on one side of the clutch plate 1, and the cylinder 2 is installed at the end of the connecting tube 101 away from the clutch plate 1. A fixing ring 3 is provided at the end of the cylinder 2 close to the clutch plate 1, and an extension rod 4 is provided inside the fixing ring 3; one end of the extension rod 4 for pushing is rotatably connected with the clutch plate 1, and the end of the extension rod 4 away from the clutch plate 1 passes through the interior of the cylinder 2 and is connected to a driving gear 102; the fixing ring 3 for sleeve connection is tightly fitted with the outer wall of the extension rod 4, and closed rings 302 are provided at both ends of the fixing ring 3 near the extension rod 4, and an extrusion plate 301 is provided at the end of the fixing ring 3 away from the cylinder 2; a connecting tube 202 is provided inside the end of the cylinder 2 for pushing away from the extension rod 4, and the driving gear 102 slides in contact with the inner wall of the cylinder 2.

[0026] like Figure 1 、 Figure 2 As shown, one side of the outer wall of the clutch plate 1 is fixedly connected to the connecting cylinder 101, and the outer wall of the connecting cylinder 101 away from the clutch plate 1 is fixedly connected with a driving gear 102, which is engaged with the driving gear of the external driving device.

[0027] like Figure 3 、 Figure 5As shown, the outer wall of the cylinder 2 near the fixed ring 3 is surrounded by a sleeve ring 201, and the two ends of the fixed ring 3 are inclined toward the center near the side of the protruding rod 4, and the outer wall side of the closed ring 302 is inclined and fitted with the inclined surface of the fixed ring 3. The extrusion plate 301 and the closed ring 302 are fitted and squeezed together, and the closed ring 302 of the fixed ring 3 near one end of the cylinder 2 is squeezed toward the inside of the fixed ring 3, and then the closed ring 302 is squeezed toward the center along the inclined surface of one end of the fixed ring 3, so that the closed ring 302 and the protruding rod 4 are tightly fitted and sealed. At the same time, when the protruding rod 4 contracts, it can drive the closed ring 302 away from one end of the cylinder 2 to move toward the inside of the fixed ring 3, so that it can maintain the extrusion of the fixed ring 3 and avoid the extrusion and relaxation of the fixed ring 3.

[0028] like Figure 2 、 Figure 4 As shown, one end of the cylinder 2 and one side of the closed ring 302 are pressed against each other, and a plurality of fixing bolts 5 are arranged around the outer wall of the fixing ring 3, and the fixing bolts 5 and one end of the cylinder 2 are fixed to each other, and one end of the fixing bolts 5 passing through the inside of the extrusion plate 301 is threadedly connected with a fixing nut 501. By rotating the fixing nut 501, the extrusion plate 301 is squeezed against the closed ring 302, so that the closed ring 302 is driven to be squeezed toward the side of the cylinder 2, so that it is squeezed and kept sealed.

[0029] like Figure 3 、 Figure 4 As shown, a connecting spring 402 is provided inside the end of the cylinder 2 away from the extending rod 4 and around the outer wall of the extending rod 4. One end of the connecting spring 402 is fixed to the side wall of the closing piece 401. The end of the connecting spring 402 away from the closing piece 401 is fixed inside the end of the cylinder 2 close to the extending rod 4. The gas can push the closing piece 401 to move, thereby driving the extending rod 4 to move. At the same time, the movement of the extending rod 4 can drive the clutch plate 1 to move, so that the clutch plate 1 is fitted. At the same time, when it stops being used, the extending rod 4 can be pulled by the connecting spring 402 to move in the opposite direction, thereby causing the clutch plate 1 to move in the opposite direction to achieve disengagement.

[0030] When in use, the cylinder 2 can be conveniently connected to the external fixed structure, and the external air pump can be conveniently started when in use, and the gas can be transported to the inside of the cylinder 2 through the connecting pipe 202, and the gas can push the closing piece 401 to move, thereby driving the extension rod 4 to move, and at the same time, the movement of the extension rod 4 can drive the clutch piece 1 to move, so that the clutch piece 1 is completed. At the same time, when it is stopped, the extension rod 4 can be pulled in the opposite direction by the pulling of the connecting spring 402, thereby causing the clutch piece 1 to move in the opposite direction to disengage. When the device is in use, the closing piece 401 can be fitted with the inner wall of the cylinder 2 to achieve sealing. At the same time, since the inside of the sleeve ring 201 and the fixed ring 3 are sleeved together, gas leakage can be effectively prevented. At the same time, since the closing rings 302 are provided at both ends of the fixed ring 3, the fixed ring 3 can be rotated to The fixed nut 501 causes the extrusion plate 301 to squeeze the closed ring 302, so that the closed ring 302 is driven to squeeze toward one side of the cylinder 2, so that it is squeezed and sealed. At the same time, since the centers of both ends of the fixing ring 3 are provided with inclined surfaces, when the extension rod 4 is pushed, the closed ring 302 of the fixing ring 3 close to one end of the cylinder 2 can be squeezed toward the inside of the fixing ring 3, and then the closed ring 302 is squeezed along the inclined surface of one end of the fixing ring 3 to the center, so that the closed ring 302 and the extension rod 4 are closely fitted and sealed. At the same time, when the extension rod 4 contracts, it can drive the closed ring 302 away from one end of the cylinder 2 to move toward the inside of the fixing ring 3, so that it can maintain the squeezing of the fixing ring 3 and avoid the squeezing and loosening of the fixing ring 3. At the same time, the closed ring 302 is squeezed toward the center by the inclined surface of one end of the fixing ring 3, further maintaining the sealing fit with the extension rod 4 to avoid gas leakage.

[0031] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-sealing cylinder structure, comprising a clutch plate (1), a cylinder (2) and a fixing ring (3), characterized in that: A connecting tube (101) is provided on one side of the clutch plate (1), a cylinder (2) is installed at the end of the connecting tube (101) away from the clutch plate (1), a fixing ring (3) is provided at the end of the cylinder (2) close to the clutch plate (1), and a protruding rod (4) is provided inside the fixing ring (3); One end of the extension rod (4) for pushing is rotatably connected to the clutch plate (1), and one end of the extension rod (4) away from the clutch plate (1) passes through the interior of the cylinder (2) and is connected to a driving gear (102); The fixed ring (3) used for sleeve connection is tightly fitted with the outer wall of the extension rod (4), and closed rings (302) are provided at both ends of the fixed ring (3) near the extension rod (4), and an extrusion plate (301) is provided at the end of the fixed ring (3) away from the cylinder (2); A connecting pipe (202) is provided inside the end of the cylinder (2) used for pushing away from the extension rod (4), and the driving gear (102) and the inner wall of the cylinder (2) are fitted and slidable with each other.

2. A high-sealing cylinder structure according to claim 1, characterized in that: One side of the outer wall of the clutch plate (1) is fixedly connected to the connecting cylinder (101), and a driving gear (102) is fixedly connected around the outer wall of one end of the connecting cylinder (101) away from the clutch plate (1), and the driving gear (102) is meshed with the driving gear of the external driving device.

3. The high-sealing cylinder structure according to claim 1, characterized in that: The outer wall of the cylinder (2) near the fixed ring (3) is sleeved with a sleeve ring (201), and the two ends of the fixed ring (3) are inclined toward the center near the side of the extension rod (4), and the outer wall of the closed ring (302) is inclined and fits with the inclined surface of the fixed ring (3) in a corresponding manner.

4. The high-sealing cylinder structure according to claim 1, characterized in that: The extrusion plate (301) and the closed ring (302) are pressed against each other, and one end of the cylinder (2) and one side of the closed ring (302) are pressed against each other.

5. The high-sealing cylinder structure according to claim 1, characterized in that: A plurality of fixing bolts (5) are arranged around the outer wall of the fixing ring (3), and the fixing bolts (5) are fixed to one end of the cylinder (2), and one end of the fixing bolts (5) passes through the interior of the extrusion plate (301) and is threadedly connected to a fixing nut (501).

6. The high-sealing cylinder structure according to claim 1, characterized in that: A connecting spring (402) is provided inside the cylinder (2) at one end away from the extending rod (4) and surrounding the outer wall of the extending rod (4); one end of the connecting spring (402) is fixed to the side wall of the closing plate (401); and the end of the connecting spring (402) away from the closing plate (401) is fixed to the end of the cylinder (2) close to the extending rod (4).

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