Double-rod air cylinder structure

Abstract

The utility model provides a double-rod air cylinder structure which comprises an air cylinder body, the bottom of the air cylinder body is in an opening shape, a bottom cover is installed at the bottom of the air cylinder body through a plurality of connecting screws, a first connecting plate and a second connecting plate are installed on the two parallel side faces of the bottom cover respectively, and the first connecting plate and the second connecting plate are attached to the air cylinder body. A plurality of blind holes are formed in the area, covered by the first connecting plate and the second connecting plate, of the air cylinder body, the face, deviating from the air cylinder body, of the first connecting plate and the face, deviating from the air cylinder body, of the second connecting plate are both in threaded connection with a plurality of limiting screws matched with the blind holes, and one ends of the limiting screws extend into the blind holes; the connecting screw has the advantages that acting force acting on the connecting screw is dispersed to the air cylinder body, the requirement for the strength of the connecting screw is lowered, and the stability of the structure is improved.

Description

Technical Field

[0001] The utility model relates to a double-rod cylinder structure, belonging to the field of cylinders. Background Art

[0002] The double-rod cylinder is an actuator commonly used in pneumatic systems. The cylinder body is one of the main components of the double-rod cylinder, and a bottom cover is installed at the bottom of the cylinder body through multiple connecting screws. During the extension process of the double-rod cylinder, the piston will squeeze the gas in the cylinder body, and the extrusion force of the gas will be transferred to the connecting screws that limit the bottom cover and the cylinder body. As the pushing load on the piston rod increases, the reaction force on the connecting screws becomes greater. At this time, the load on the connecting screws is relatively large under the high-load working condition of the double-rod cylinder, and the installation stability and strength requirements of the connecting screws are relatively high. Therefore, it is necessary to design a double-rod cylinder structure that reduces the strength requirements of the connecting screws. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a double-rod cylinder structure to solve the problems raised in the above-mentioned background technology. The present invention disperses the force acting on the connecting screws to the cylinder body, reduces the requirements for the strength of the connecting screws, and improves the stability of the structure.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a double-rod cylinder structure, including a cylinder body, the bottom of the cylinder body is open, and a bottom cover is installed on the bottom of the cylinder body through multiple connecting screws, and a first connecting plate and a second connecting plate are respectively installed on two parallel sides of the bottom cover, the first connecting plate and the second connecting plate are fitted with the cylinder body, and a plurality of blind holes are opened in the area of ​​the cylinder body covered by the first connecting plate and the second connecting plate, and a plurality of limit screws matching the blind holes are threadedly connected on the side of the first connecting plate facing away from the cylinder body and the side of the second connecting plate facing away from the cylinder body, and one end of the limit screw extends into the blind hole.

[0005] Furthermore, a plurality of circular holes aligned with the blind holes are evenly formed on one side of the first connecting plate facing the cylinder body and a side of the second connecting plate facing the cylinder body, and a plurality of evenly arranged internal threaded sleeves are installed on one side of the first connecting plate facing away from the cylinder body and a side of the second connecting plate facing away from the cylinder body, the internal threaded sleeves are aligned with the circular holes, the limit screw is threadedly connected in the internal threaded sleeve, and one end of the limit screw passes through the circular hole and extends into the blind hole.

[0006] Furthermore, a plurality of first weight-reducing openings are evenly provided on a side of the first connecting plate facing the second connecting plate, and a plurality of second weight-reducing openings are evenly provided on a side of the second connecting plate facing the first connecting plate.

[0007] Furthermore, the first connecting plate and the bottom cover are an integrally formed structure, the second connecting plate and the bottom cover are an integrally formed structure, and the first connecting plate, the second connecting plate and the bottom cover are arranged perpendicular to each other.

[0008] Furthermore, a sealing gasket is provided between the bottom cover and the cylinder body, a first through hole is provided at each of the four western corners of the bottom cover, a second through hole is provided at each of the four corners of the sealing gasket that is aligned with the first through hole, and a screw hole aligned with the second through hole is provided at each of the four corners of the bottom of the cylinder body, and a connecting screw threadedly connected to the screw hole is inserted into the channel formed by the first through hole and the second through hole.

[0009] Furthermore, a bump is connected and fixed to one side of the sealing gasket facing the cylinder body, and a side of the cylinder body facing the sealing gasket is recessed to form an oblong opening matching the bump, the cross section of the bump is the same as that of the oblong opening, and the bump is inserted into the oblong opening.

[0010] Furthermore, two guide holes for inserting the piston rod are provided on a side of the cylinder body facing away from the bottom cover, and sealing sleeves are installed in the guide holes.

[0011] Beneficial effects of the utility model:

[0012] 1. When the bottom cover is installed on the cylinder body using connecting screws, the first connecting plate and the second connecting plate are respectively attached to the two sides of the cylinder body, and then the limit screws on the first connecting plate and the second connecting plate are respectively extended into the corresponding blind holes. At this time, the force generated by the double-rod cylinder on the connecting screws during the working process will be dispersed to the cylinder body through the first connecting plate and the second connecting plate, reducing the strength requirements of the connecting screws and improving the stability of the structure.

[0013] 2. Internal threaded sleeves are installed on the first connecting plate and the second connecting plate, and the limit screws are threadedly connected in the internal threaded sleeves to partially increase the thickness of the first connecting plate and the second connecting plate. At the same time, multiple first weight-reducing openings are processed on the first connecting plate and multiple second weight-reducing openings are processed on the second connecting plate, which is conducive to reducing the material consumption of the first connecting plate and the second connecting plate as much as possible and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a structural diagram of a double-rod cylinder structure of the utility model;

[0016] Figure 2 This is a three-dimensional diagram from another perspective of a double-rod cylinder structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly of the first connecting plate, the second connecting plate and the bottom cover in a double-rod cylinder structure of the utility model;

[0018] Figure 4 This is a three-dimensional diagram of a cylinder body in a double-rod cylinder structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the assembly of a protrusion and a sealing gasket in a double-rod cylinder structure of the utility model;

[0020] In the figure: 1-cylinder body, 2-sealing gasket, 3-bottom cover, 4-first weight-reducing port, 5-first connecting plate, 6-limiting screw, 7-inner threaded sleeve, 8-sealing sleeve, 9-connecting screw, 10-second connecting plate, 11-second weight-reducing port, 12-first through hole, 13-round hole, 14-screw hole, 15-blind hole, 16-long round port, 17-bump, 18-second through hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a double-rod cylinder structure, including a cylinder body 1, a side of the cylinder body 1 facing away from the bottom cover 3 is provided with two guide holes for inserting the piston rod, a sealing sleeve 8 is installed in the guide hole, the bottom of the cylinder body 1 is open, the bottom of the cylinder body 1 is installed with a bottom cover 3 by a plurality of connecting screws 9, a sealing gasket 2 is provided between the bottom cover 3 and the cylinder body 1, the four corners of the west side of the bottom cover 3 are provided with a first through hole 12, the four corners of the sealing gasket 2 are provided with a second through hole 18 aligned with the first through hole 12, and the four corners of the bottom of the cylinder body 1 are provided with a screw hole 14 aligned with the second through hole 18, so that The connecting screw 9 inserted in the channel formed by the first through hole 12 and the second through hole 18 is threadedly connected to the screw hole 14 to complete the assembly of the bottom cover 3 and the cylinder block 1. At this time, the sealing gasket 2 improves the sealing between the bottom cover 3 and the cylinder block 1, wherein the side of the sealing gasket 2 facing the cylinder block 1 is connected and fixed with a protrusion 17, and the side of the cylinder block 1 facing the sealing gasket 2 is recessed to form an oblong opening 16 that matches the protrusion 17. The cross-section of the protrusion 17 is the same as the cross-section of the oblong opening 16, so that the protrusion 17 is inserted in the oblong opening 16, thereby realizing rapid positioning of the sealing gasket 2 and preventing the sealing gasket 2 from moving around at will during the assembly of the bottom cover 3 and the cylinder block 1.

[0023] See Figure 1-Figure 3, the first connecting plate 5 and the second connecting plate 10 are respectively installed on the two parallel sides of the bottom cover 3, the first connecting plate 5 and the bottom cover 3 are an integrally formed structure, the second connecting plate 10 and the bottom cover 3 are an integrally formed structure, the first connecting plate 5, the second connecting plate 10 and the bottom cover 3 are arranged perpendicular to each other, the first connecting plate 5 facing the second connecting plate 10 is evenly provided with a plurality of first weight-reducing openings 4, the second connecting plate 10 facing the first connecting plate 5 is evenly provided with a plurality of second weight-reducing openings 11, the first connecting plate 5 facing the cylinder block 1 and the second connecting plate 10 facing the cylinder block 1 are evenly provided with a plurality of round holes 13 aligned with the blind holes 15, the first connecting plate 5 facing away from the cylinder block 1 and the second connecting plate A plurality of evenly arranged internal threaded sleeves 7 are installed on the side of 10 facing away from the cylinder body 1, and the internal threaded sleeves 7 are aligned with the circular hole 13. The limit screw 6 is threadedly connected in the internal threaded sleeve 7. One end of the limit screw 6 passes through the circular hole 13 and extends into the blind hole 15. The internal threaded sleeves 7 are installed on the first connecting plate 5 and the second connecting plate 10, and the limit screw 6 is threadedly connected in the internal threaded sleeve 7, so as to locally increase the thickness of the first connecting plate 5 and the second connecting plate 10. At the same time, a plurality of first weight-reducing ports 4 are processed on the first connecting plate 5 and a plurality of second weight-reducing ports 11 are processed on the second connecting plate 10, which is conducive to reducing the material consumption of the first connecting plate 5 and the second connecting plate 10 as much as possible and reducing production costs.

[0024] See Figures 1-4 , a plurality of blind holes 15 are provided in the area of ​​the cylinder body 1 covered by the first connecting plate 5 and the second connecting plate 10. The side of the first connecting plate 5 facing away from the cylinder body 1 and the side of the second connecting plate 10 facing away from the cylinder body 1 are both threadedly connected with a plurality of limit screws 6 that match the blind holes 15. One end of the limit screw 6 extends into the blind hole 15. When the bottom cover 3 is installed on the cylinder body 1 using the connecting screws 9, the first connecting plate 5 and the second connecting plate 10 are respectively attached to the two side surfaces of the cylinder body 1, and then the limit screws 6 on the first connecting plate 5 and the second connecting plate 10 are respectively extended into the corresponding blind holes 15. At this time, the force generated by the double-rod cylinder on the connecting screws 9 during the working process will be dispersed to the cylinder body 1 through the first connecting plate 5 and the second connecting plate 10, thereby reducing the strength requirement of the connecting screws 9 and improving the stability of the structure.

[0025] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A double-rod cylinder structure, comprising a cylinder body (1), characterized in that: The bottom of the cylinder body (1) is open, and a bottom cover (3) is installed on the bottom of the cylinder body (1) through a plurality of connecting screws (9). A first connecting plate (5) and a second connecting plate (10) are respectively installed on two parallel sides of the bottom cover (3). The first connecting plate (5) and the second connecting plate (10) are fitted with the cylinder body (1). A plurality of blind holes (15) are opened in the area of ​​the cylinder body (1) covered by the first connecting plate (5) and the second connecting plate (10). A plurality of limit screws (6) matching the blind holes (15) are both threadedly connected on one side of the first connecting plate (5) facing away from the cylinder body (1) and on the other side of the second connecting plate (10) facing away from the cylinder body (1). One end of the limit screw (6) extends into the blind hole (15).

2. A double-rod cylinder structure according to claim 1, characterized in that: A plurality of circular holes (13) aligned with the blind hole (15) are evenly provided on one side of the first connecting plate (5) facing the cylinder body (1) and a plurality of evenly arranged internal threaded sleeves (7) are installed on one side of the first connecting plate (5) facing away from the cylinder body (1) and a plurality of evenly arranged internal threaded sleeves (7) are installed on one side of the second connecting plate (10) facing away from the cylinder body (1), the internal threaded sleeves (7) are aligned with the circular holes (13), the limiting screw (6) is threadedly connected in the internal threaded sleeve (7), and one end of the limiting screw (6) passes through the circular hole (13) and extends into the blind hole (15).

3. The double-rod cylinder structure according to claim 1, characterized in that: A plurality of first weight-reducing openings (4) are evenly provided on a side of the first connecting plate (5) facing the second connecting plate (10), and a plurality of second weight-reducing openings (11) are evenly provided on a side of the second connecting plate (10) facing the first connecting plate (5).

4. The double-rod cylinder structure according to claim 1, characterized in that: The first connecting plate (5) and the bottom cover (3) are an integrally formed structure, the second connecting plate (10) and the bottom cover (3) are an integrally formed structure, and the first connecting plate (5), the second connecting plate (10) and the bottom cover (3) are arranged perpendicular to each other.

5. The double-rod cylinder structure according to claim 1, characterized in that: A sealing gasket (2) is provided between the bottom cover (3) and the cylinder body (1); a first through hole (12) is provided at each of the four western corners of the bottom cover (3); a second through hole (18) aligned with the first through hole (12) is provided at each of the four corners of the sealing gasket (2); a screw hole (14) aligned with the second through hole (18) is provided at each of the four corners of the bottom of the cylinder body (1); and a connecting screw (9) threadedly connected to the screw hole (14) is inserted into the channel formed by the first through hole (12) and the second through hole (18).

6. The double-rod cylinder structure according to claim 5, characterized in that: A protrusion (17) is connected and fixed to one side of the sealing gasket (2) facing the cylinder body (1); a side of the cylinder body (1) facing the sealing gasket (2) is recessed to form an oblong opening (16) matching the protrusion (17); the cross section of the protrusion (17) is the same as that of the oblong opening (16); and the protrusion (17) is inserted into the oblong opening (16).

7. The double-rod cylinder structure according to claim 1, characterized in that: Two guide holes for inserting piston rods are provided on a side of the cylinder body (1) facing away from the bottom cover (3), and sealing sleeves (8) are installed in the guide holes.

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