Air cylinder convenient to use and use method thereof

Abstract

The invention belongs to the technical field of air cylinders, and discloses an air cylinder convenient to use and a using method thereof.The air cylinder comprises an installation base and a cylinder body which are oppositely combined, a movable rod vertically penetrates through the center of the installation base and is slidably arranged in the center of the installation base, a center hole is formed in the center of the top of the cylinder body, and the top end of the movable rod penetrates through the center hole and is slidably connected with the center hole; the edge of an involution port of the cylinder body is folded outwards to form a first butt-joint plate, the edge of an involution port of the installation base is folded outwards to form a second butt-joint plate, the first butt-joint plate and the second butt-joint plate are connected in a bolted mode and located on the middle section of the whole air cylinder, and a fixing plate used for fixing the air cylinder is arranged at the end, away from the cylinder body, of the installation base. When the air cylinder is overhauled, the whole air cylinder does not need to be detached from the support, operation is easy, and overhauling is convenient and fast; whether the sealing plug at the bottom end is reset or not can be indirectly known by observing the top end position of the movable rod, use is convenient, and time and labor are saved.

Description

Technical Field

[0001] The invention belongs to the technical field of cylinders, and in particular relates to a convenient-to-use cylinder and a using method thereof. Background Art

[0002] The oil nozzle cylinder of the paver is a cylinder installed at the oil nozzle of the paver to control the opening and closing of the oil nozzle. When inflated, the piston drives the movable rod to drive the sealing plug to leave the oil nozzle, so that asphalt can be sprayed out of the oil nozzle. After the air is cut off, the oil nozzle is reset and sealed again under the action of the internal spring.

[0003] The nozzle cylinder currently in use is generally fixed to the bracket by multiple screws that penetrate the entire cylinder, which makes it inconvenient to disassemble and repair. If the cylinder needs to be disassembled for maintenance, the cylinder must be removed from the bracket. In addition, the position status of the sealing plug of the nozzle cylinder currently in use is not easy to observe and judge. After the spraying is completed, workers are often required to observe closely to check whether the sealing plug has been reset, which is inconvenient. Summary of the invention

[0004] In order to overcome the above technical problems, the present invention provides a convenient-to-use cylinder and a method for using the same.

[0005] The present invention adopts the following technical solutions:

[0006] A cylinder that is easy to use comprises a mounting seat and a cylinder body that are matched with each other, a movable rod is vertically passed through and slidably arranged in the center of the mounting seat, the bottom end of the movable rod is connected to a sealing plug, the part of the movable rod located in the cylinder body is connected to a piston, a center hole is opened in the top center of the cylinder body, the top end of the movable rod passes through the center hole and is slidably connected to the center hole, the top end of the movable rod has a hollow section, the side wall of the hollow section has an exhaust hole, the exhaust hole is always located in the cylinder body, the hollow section is an exhaust channel, the exhaust channel connects the cavity formed by the cylinder body and the piston with the outside world, the end of the mounting seat away from the cylinder body has a fixing plate for fixing the cylinder itself, and the fixing plate has a bolt hole.

[0007] Preferably, the mating port of the cylinder body is folded outward to form a docking plate 1, and the mating port of the mounting seat is folded outward to form a docking plate 2. The docking plate 1 and the docking plate 2 are bolted together, and the docking plate 1 and the docking plate 2 are located in the middle section of the entire cylinder.

[0008] Preferably, an air inlet is arranged on the side of the mounting seat, and the mounting seat has an air inlet channel, and the air inlet channel connects cavity 1 between the piston and the mounting seat with the air inlet, and cavity 2 formed by the piston and the cylinder body has corresponding exhaust holes and exhaust channels, and a return spring is arranged between the top of the piston and the cylinder body.

[0009] Preferably, the movable rod is divided into a sleeve rod in an upper section and a solid rod in a lower section, the bottom end of the sleeve rod is threadedly connected to the top end of the solid rod, and the piston is clamped and fixed by the sleeve rod and the solid rod.

[0010] Preferably, the interior of the mounting seat has cavity three, and the cavity three is connected to cavity one. A protrusion corresponding to cavity three is provided on one side of the piston close to the mounting seat, and the other side of the piston is concave. The bottom end of the sleeve rod is located in the concave area and is thickened. The top end of the thickened section is higher than the upper end surface of the piston. The thickened section and the inner wall at the center hole position of the cylinder body constitute a limit of the upper dead point when the movable rod moves upward.

[0011] A method for using a cylinder comprises the following steps:

[0012] S1. The cylinder is installed on the bracket through a fixing plate, and the sealing plug seals the oil nozzle. After the air is filled from the air inlet, the air pressure in the cavity drives the piston to drive the movable rod to drive the sealing plug to leave the oil nozzle, thereby spraying asphalt. After the air is cut off, the sealing plug is reset under the elastic force of the spring to re-seal the oil nozzle;

[0013] S2. When the inside of the cylinder needs to be inspected, the bolts between the docking plate 1 and the docking plate 2 are removed, and the cylinder body can be removed, and then the inside of the cylinder can be inspected without removing the mounting seat or removing the entire cylinder;

[0014] S3. By observing the top position of the sleeve rod, it is indirectly judged whether the sealing plug has successfully re-sealed the oil nozzle. If the sleeve rod is at the bottom dead center, it means that the sealing plug has been reset. If the sleeve rod is not reset, it means that the sealing plug has not been reset.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention extends the top of the movable rod to penetrate the cylinder body, and exhausts through the hollow section at the top. The top is connected to the exhaust pipe. By observing the top position of the movable rod, it can be indirectly known whether the sealing plug at the bottom has been reset. It is no longer necessary to observe the sealing plug at a close distance. It is easy to use and saves time and manpower.

[0017] 2. The cylinder of the present invention is installed on the bracket through the fixing plate at the bottom of the mounting seat. When the cylinder is inspected, it does not need to be completely removed from the bracket. It only needs to remove the bolts between the docking plate 1 and the docking plate 2 located at the waist to remove the cylinder body separately for inspection. The operation is simple and the inspection is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the present invention;

[0019] Figure 2 It is an exploded view of the present invention;

[0020] Figure 3 It is a longitudinal section of the air inlet of the present invention (with a sealing plug);

[0021] Figure 4 It is a longitudinal section of the air outlet of the present invention (with a sealing plug).

[0022] Description of reference numerals:

[0023] 1 movable rod; 11 solid rod; 12 sleeve rod; 121 exhaust hole; 122 exhaust channel;

[0024] 2 cylinder body; 3 docking plate 1; 4 docking plate 2;

[0025] 5 mounting seat; 51 air inlet; 52 air inlet passage;

[0026] 6 fixed plate; 7 piston. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Unless otherwise specified, the raw materials and equipment used can be purchased from the market or are commonly used in the art. The methods in the embodiments are conventional methods in the art unless otherwise specified. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] A convenient cylinder comprises a mounting seat 5 and a cylinder body 2 which are matched with each other, a movable rod 1 is vertically passed through the center of the mounting seat 5 and slidably arranged, the bottom end of the movable rod 1 is connected to a sealing plug, the part of the movable rod 1 located in the cylinder body 2 is connected to a piston 7, a center hole is opened in the top center of the cylinder body 2, the top end of the movable rod 1 passes through the center hole and is slidably connected to the center hole, the position state of the sealing plug can be judged by observing the position state of the tail end of the movable rod 1, the top end of the movable rod 1 has a hollow section, the side wall of the hollow section has an exhaust hole 121, the exhaust hole 121 is always located in the cylinder body 2, the hollow section is an exhaust channel 122, the exhaust channel 122 connects the cavity 2 formed by the cylinder body 2 and the piston 7 with the outside world, The mating port of the cylinder body 2 is folded outward to form a docking plate 3, and the mating port of the mounting seat 5 is folded outward to form a docking plate 2 4. The docking plate 1 3 and the docking plate 2 4 are bolted together, and the docking plate 1 3 and the docking plate 2 4 are located in the middle section of the cylinder as a whole. The end of the mounting seat 5 away from the cylinder body 2 has a fixing plate 6 for fixing the cylinder itself, and the fixing plate 6 has bolt holes. An air inlet 51 is arranged on the side of the mounting seat 5, and the mounting seat 5 has an air inlet channel 52. The air inlet channel 52 connects the cavity 1 between the piston 7 and the mounting seat 5 with the air inlet 51. The cavity 2 formed by the piston 7 and the cylinder body 2 has corresponding exhaust holes 121 and exhaust channels 122, and a return spring is arranged between the top of the piston 7 and the cylinder body 2.

[0029] The movable rod 1 is divided into a sleeve rod 12 in the upper half and a solid rod 11 in the lower half. The bottom end of the sleeve rod 12 is threadedly connected to the top end of the solid rod 11. The piston 7 is clamped and fixed by the sleeve rod 12 and the solid rod 11. The interior of the mounting seat 5 has a cavity three, and the cavity three is connected to the cavity one. A protrusion corresponding to the cavity three is arranged on one side of the piston 7 close to the mounting seat 5, and the other side of the piston 7 is concave. The bottom end of the sleeve rod 12 is located in the concave area and is thickened. The top end of the thickened section is higher than the upper end surface of the piston 7. The thickened section and the inner wall at the center hole position of the cylinder body 2 constitute a limit of the upper dead point when the movable rod 1 moves upward.

[0030] A method for using a cylinder comprises the following steps:

[0031] S1. The cylinder is mounted on the bracket through the fixing plate 6, and the sealing plug blocks the oil nozzle. After the air is inflated from the air inlet 51, the air pressure in the cavity drives the piston 7 to drive the movable rod 1 to drive the sealing plug to leave the oil nozzle, thereby spraying asphalt. After the air is cut off, the sealing plug is reset under the elastic force of the spring to re-seal the oil nozzle;

[0032] S2. When the internal part of the cylinder needs to be repaired, the bolts between the docking plate 3 and the docking plate 4 are removed, the cylinder body 2 can be removed, and then the internal part of the cylinder can be repaired without removing the mounting seat 5, without removing the entire cylinder;

[0033] S3. By observing the top position of the sleeve rod 12, it is indirectly judged whether the sealing plug has successfully re-sealed the oil nozzle. If the sleeve rod 12 is at the bottom dead center, it means that the sealing plug has been reset. If the sleeve rod 12 is not reset, it means that the sealing plug has not been reset.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the above embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A convenient cylinder, comprising a mounting seat and a cylinder body that are matched with each other, a movable rod is vertically passed through the center of the mounting seat and slidably arranged, the bottom end of the movable rod is connected to a sealing plug, and the part of the movable rod located in the cylinder body is connected to a piston, characterized in that: A center hole is opened at the top center of the cylinder body, and the top end of the movable rod passes through the center hole and is slidably connected with the center hole. The top end of the movable rod has a hollow section, and the side wall of the hollow section has an exhaust hole. The exhaust hole is always located in the cylinder body. The hollow section is an exhaust channel, and the exhaust channel connects the cavity formed by the cylinder body and the piston with the outside world. The end of the mounting seat away from the cylinder body has a fixing plate for fixing the cylinder itself, and the fixing plate has a bolt hole.

2. A convenient-to-use cylinder according to claim 1, characterized in that: The mating port of the cylinder body is folded outward to form a docking plate 1, and the mating port of the mounting seat is folded outward to form a docking plate 2. The docking plate 1 and the docking plate 2 are bolted together, and the docking plate 1 and the docking plate 2 are located in the middle section of the entire cylinder.

3. A convenient-to-use cylinder according to claim 2, characterized in that: An air inlet is arranged on the side of the mounting seat, and the mounting seat has an air inlet channel, which connects cavity 1 between the piston and the mounting seat with the air inlet, and cavity 2 formed by the piston and the cylinder body has corresponding exhaust holes and exhaust channels, and a return spring is arranged between the top of the piston and the cylinder body.

4. A convenient-to-use cylinder according to claim 3, characterized in that: The movable rod is divided into a sleeve rod in the upper section and a solid rod in the lower section. The bottom end of the sleeve rod is threadedly connected to the top end of the solid rod, and the piston is clamped and fixed by the sleeve rod and the solid rod.

5. The easy-to-use cylinder according to claim 4, characterized in that: The interior of the mounting seat has cavity three, and the cavity three is connected to cavity one. A protrusion corresponding to cavity three is provided on one side of the piston close to the mounting seat, and the other side of the piston is concave. The bottom end of the sleeve rod is located in the concave area and is thickened. The top end of the thickened section is higher than the upper end surface of the piston. The thickened section and the inner wall at the center hole position of the cylinder body constitute a limit of the upper dead point when the movable rod moves upward.

6. A method for using a cylinder, characterized in that: The method of using the convenient cylinder according to claim 5 comprises the following steps: S1. The cylinder is installed on the bracket through a fixing plate, and the sealing plug seals the oil nozzle. After the air is filled from the air inlet, the air pressure in the cavity drives the piston to drive the movable rod to drive the sealing plug to leave the oil nozzle, thereby spraying asphalt. After the air is cut off, the sealing plug is reset under the elastic force of the spring to re-seal the oil nozzle; S2. When the inside of the cylinder needs to be inspected, the bolts between the docking plate 1 and the docking plate 2 are removed, and the cylinder body can be removed, and then the inside of the cylinder can be inspected without removing the mounting seat or removing the entire cylinder; S3. By observing the top position of the sleeve rod, it is indirectly judged whether the sealing plug has successfully re-sealed the oil nozzle. If the sleeve rod is at the bottom dead center, it means that the sealing plug has been reset. If the sleeve rod is not reset, it means that the sealing plug has not been reset.

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