Cylinder shell barrel

Abstract

The utility model provides an air cylinder outer shell barrel which comprises a hollow shell barrel body, the cross section of the hollow shell barrel body is rectangular, a countersunk head groove used for storing a sealing gasket is formed in the middle of one face of the hollow shell barrel body, four rectangular grooves are evenly formed in the face, provided with the countersunk head groove, of the hollow shell barrel body, and rectangular blocks are inserted in the rectangular grooves. A screw hole used for being matched with a screw limiting the position of the end cover is formed in the face, located on the outer side of the rectangular groove, of the rectangular block, a pressing plate used for pressing the rectangular block is arranged on the face, provided with the countersunk groove, of the hollow shell barrel, a round opening concentric with the countersunk groove is formed in one face of the pressing plate, and three sets of connecting pieces are installed between the pressing plate and the hollow shell barrel. Four small holes aligned with the screw holes are formed in the face, facing the hollow shell barrel, of the pressing plate. The pressing plate has the advantages that the threaded connection portion matched with the screw and the hollow shell barrel are assembled, and the screw holes matched with the screw do not need to be directly machined in the hollow shell barrel.

Description

Technical Field

[0001] The utility model relates to a cylinder outer shell tube, belonging to the field of cylinder accessories. Background Art

[0002] The cylinder outer shell tube is one of the main accessories of the cylinder. A notch for inserting a piston rod is provided on one side of the cylinder outer shell tube. At the same time, an end cover needs to be installed on the side of the cylinder outer shell tube where the notch is opened. Connecting the end cover to the cylinder outer shell tube with screws is the most common connection method. Multiple screw holes matching the screws are provided on the cylinder outer shell tube. During the assembly of the screws, there is a situation where the screw holes machined on the cylinder outer shell tube are damaged due to reasons such as excessive torque. After the above situation occurs, the cylinder outer shell tube needs to be discarded, resulting in waste of resources. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a cylinder outer shell tube to solve the problems put forward in the above background art. The utility model realizes an assembly relationship between the threaded connection part matching the screw and the hollow shell tube, and there is no need to directly machine screw holes matching the screws on the hollow shell tube.

[0004] To achieve the above purpose, the utility model is realized through the following technical solutions: A cylinder outer shell tube includes a hollow shell tube. The cross-section of the hollow shell tube is rectangular. A counterbore for storing a sealing washer is provided at the middle position on one side of the hollow shell tube. Four rectangular grooves are evenly opened on the side of the hollow shell tube where the counterbore is opened. A rectangular block is inserted into the rectangular groove. A screw hole for cooperating with a screw for restricting the position of the end cover is provided on the side of the rectangular block outside the rectangular groove. A pressing plate for pressing the rectangular block is provided on the side of the hollow shell tube where the counterbore is opened. A round hole concentric with the counterbore is provided on one side of the pressing plate. Three groups of connecting pieces are installed between the pressing plate and the hollow shell tube. Four small holes aligned with the screw holes are provided on the side of the pressing plate facing the hollow shell tube.

[0005] Further, the connecting piece includes a connecting plate. The connecting plate is installed on three side surfaces of the pressing plate. The connecting plate is attached to the surface of the hollow shell tube. A plurality of blind holes are evenly opened in the area of the hollow shell tube covered by the pressing plate. A plurality of positioning screws matching the blind holes are threadedly connected to the side of the connecting plate facing away from the hollow shell tube. One end of the positioning screw extends into the blind hole.

[0006] Further, a plurality of through holes aligned with the blind holes are evenly opened on the side of the connecting plate facing away from the hollow shell tube. A threaded sleeve concentric with the through hole is provided on the side of the through hole facing away from the blind hole. The threaded sleeve is fixedly connected to the connecting plate. The positioning screw is threadedly connected in the threaded sleeve. One end of the positioning screw penetrates through the through hole.

[0007] Further, a weight-reducing hole is provided in the middle of the side of the connecting plate facing away from the hollow shell cylinder, and fillets are processed at both corners of the end of the connecting plate away from the pressing plate.

[0008] Further, the pressing plate and the connecting plate are of an integrally formed structure, and the pressing plate and the connecting plate are arranged perpendicular to each other.

[0009] Further, through holes are processed at all four corners of one side of the pressing plate, and round holes for inserting pull rod ribs are processed at all four corners of the side of the hollow shell cylinder facing the pressing plate, and the round holes and the through holes are concentrically arranged.

[0010] Advantages of the utility model:

[0011] 1. Insert the rectangular block with threaded holes into the rectangular groove to realize the assembly of the rectangular block and the hollow shell cylinder. Then, use the pressing plate to limit the rectangular block in the rectangular groove. When the threaded hole is damaged due to excessive torque or other reasons during the process of screwing the screw through the hole on the end cover and into the threaded hole, after separating the pressing plate, take out the corresponding rectangular block from the rectangular groove and replace it, without directly processing the threaded hole matching the screw on the hollow shell cylinder.

[0012] 2. After the pressing plate is attached to the hollow shell cylinder, the three connecting plates are respectively attached to the three sides of the hollow shell cylinder. When the positioning screw is screwed into the threaded sleeve and extends into the blind hole, the assembly of the pressing plate and the hollow shell cylinder is realized. The threaded sleeve realizes a local increase in the thickness of the part of the connecting plate where the positioning screw is installed, which is beneficial to reducing the thickness of the connecting plate as much as possible. The multiple positioning screws cooperate with the three connecting plates, so that the fixing points restricting the position of the pressing plate are dispersed at multiple places on the surface of the hollow shell cylinder, which is beneficial to stress dispersion. Description of the drawings

[0013] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the utility model will become more obvious:

[0014] Figure 1 It is a schematic structural diagram of a cylinder outer shell cylinder of the utility model;

[0015] Figure 2 It is an assembly diagram of a rectangular block and a hollow shell cylinder in a cylinder outer shell cylinder of the utility model;

[0016] Figure 3 It is a three-dimensional view of a hollow shell cylinder in a cylinder outer shell cylinder of the utility model;

[0017] Figure 4 It is an assembly diagram of a connecting plate and a pressing plate in a cylinder outer shell cylinder of the utility model;

[0018] In the figure: 1 - hollow shell cylinder, 2 - connecting plate, 3 - positioning screw, 4 - weight reduction hole, 5 - threaded sleeve, 6 - through hole, 7 - small hole, 8 - counterbore, 9 - pressing plate, 10 - round hole, 11 - screw hole, 12 - rectangular block, 13 - blind hole, 14 - rectangular groove, 15 - round opening. Specific implementation manner

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0020] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a cylinder outer shell cylinder, including a hollow shell cylinder 1 with a rectangular cross-section. A counterbore 8 for storing a sealing washer is provided in the middle position of one side of the hollow shell cylinder 1. Four rectangular grooves 14 are evenly opened on the side of the hollow shell cylinder 1 where the counterbore 8 is opened. A rectangular block 12 is inserted into the rectangular groove 14. A screw hole 11 for cooperating with a screw to limit the position of the end cover is opened on the side of the rectangular block 12 outside the rectangular groove 14. A pressing plate 9 for pressing the rectangular block 12 is provided on the side of the hollow shell cylinder 1 where the counterbore 8 is opened. A round opening 15 concentric with the counterbore 8 is opened on one side of the pressing plate 9. Four small holes 7 aligned with the screw holes 11 are opened on the side of the pressing plate 9 facing the hollow shell cylinder 1. The rectangular block 12 processed with the screw hole 11 is inserted into the rectangular groove 14 to realize the assembly of the rectangular block 12 and the hollow shell cylinder 1. Then, the rectangular block 12 is restricted in the rectangular groove 14 by using the pressing plate 9. When the screw hole 11 is damaged due to excessive torque or other reasons during the process of the screw passing through the hole on the end cover and being screwed into the screw hole 11, after separating the pressing plate 9, the corresponding rectangular block 12 can be taken out of the rectangular groove 14 and replaced, without directly processing the screw hole 11 cooperating with the screw on the hollow shell cylinder 1.

[0021] Refer to Figures 1 - 4, connecting plates 2 are installed on three sides of the pressing plate 9. The pressing plate 9 and the connecting plates 2 are of an integrally formed structure and are arranged perpendicular to each other. The connecting plates 2 are attached to the surface of the hollow shell cylinder 1. A weight-reducing hole 4 is provided in the middle position of the side of the connecting plate 2 facing away from the hollow shell cylinder 1. Fillets are processed at both corners of the end of the connecting plate 2 away from the pressing plate 9. A plurality of blind holes 13 are evenly provided in the area of the hollow shell cylinder 1 covered by the pressing plate 9. A plurality of positioning screws 3 that cooperate with the blind holes 13 are threadedly connected to the side of the connecting plate 2 facing away from the hollow shell cylinder 1. Among them, a plurality of through holes that are aligned with the blind holes 13 are evenly provided on the side of the connecting plate 2 facing away from the hollow shell cylinder 1. A threaded sleeve 5 that is concentrically arranged with the through hole is provided on the side of the through hole facing away from the blind hole 13. The threaded sleeve 5 is fixedly connected to the connecting plate 2. The positioning screw 3 is threadedly connected in the threaded sleeve 5. One end of the positioning screw 3 passes through the through hole and extends into the blind hole 13. After the pressing plate 9 is attached to the hollow shell cylinder 1, the three connecting plates 2 are respectively attached to the three sides of the hollow shell cylinder 1, so that after the positioning screw 3 is screwed into the threaded sleeve 5, it extends into the blind hole 13, realizing the assembly of the pressing plate 9 and the hollow shell cylinder 1. The threaded sleeve 5 realizes locally increasing the thickness of the part of the connecting plate 2 where the positioning screw 3 is installed, which is beneficial to reducing the thickness of the connecting plate 2 as much as possible. The cooperation of the plurality of positioning screws 3 and the three connecting plates 2 disperses the fixed points restricting the position of the pressing plate 9 at multiple places on the surface of the hollow shell cylinder 1, which is beneficial to stress dispersion.

[0022] Refer to Figures 1 - 4 , through holes 6 are processed at the four corners of one side of the pressing plate 9. Round holes 10 for inserting tie bars are processed at the four corners of the side of the hollow shell cylinder 1 facing the pressing plate 9. The round holes 10 and the through holes 6 are concentrically arranged. The design of the round holes 10 and the through holes 6 provides a channel for the installation of the tie bars.

[0023] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for 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 embodiments that can be understood by those skilled in the art.

Claims

1. A cylinder housing tube, comprising a hollow housing tube (1), characterized in that: The cross-section of the hollow shell cylinder (1) is rectangular. A counterbore (8) for storing a sealing washer is provided in the middle of one side of the hollow shell cylinder (1). Four rectangular grooves (14) are evenly provided on the side of the hollow shell cylinder (1) where the counterbore (8) is opened. A rectangular block (12) is inserted in the rectangular groove (14). A screw hole (11) for cooperating with a screw for restricting the position of the end cover is provided on the side of the rectangular block (12) outside the rectangular groove (14). A pressing plate (9) for pressing the rectangular block (12) is provided on the side of the hollow shell cylinder (1) where the counterbore (8) is opened. A round opening (15) concentric with the counterbore (8) is provided on one side of the pressing plate (9). Three groups of connecting members are installed between the pressing plate (9) and the hollow shell cylinder (1). Four small holes (7) aligned with the screw holes (11) are provided on the side of the pressing plate (9) facing the hollow shell cylinder (1).

2. The cylinder housing tube according to claim 1, wherein: The connecting member includes a connecting plate (2). The connecting plate (2) is installed on three side surfaces of the pressing plate (9). The connecting plate (2) is in contact with the surface of the hollow shell cylinder (1). A plurality of blind holes (13) are evenly provided in the area of the hollow shell cylinder (1) covered by the pressing plate (9). A plurality of positioning screws (3) cooperating with the blind holes (13) are threadedly connected to the side of the connecting plate (2) facing away from the hollow shell cylinder (1). One end of the positioning screw (3) extends into the blind hole (13).

3. The cylinder housing tube according to claim 2, characterized in that: A plurality of through holes aligned with the blind holes (13) are evenly provided on the side of the connecting plate (2) facing away from the hollow shell cylinder (1). A threaded sleeve (5) concentric with the through hole is provided on the side of the through hole facing away from the blind hole (13). The threaded sleeve (5) is fixedly connected to the connecting plate (2). The positioning screw (3) is threadedly connected in the threaded sleeve (5). One end of the positioning screw (3) penetrates through the through hole.

4. A cylinder housing tube according to claim 2, characterized in that: A weight-reducing hole (4) is provided in the middle of the side of the connecting plate (2) facing away from the hollow shell cylinder (1). Fillets are processed at both corners at the end of the connecting plate (2) away from the pressing plate (9).

5. The cylinder housing tube according to claim 2, characterized in that: The pressing plate (9) and the connecting plate (2) are of an integrally formed structure. The pressing plate (9) and the connecting plate (2) are arranged perpendicular to each other.

6. A cylinder housing tube according to claim 1, characterized in that: Through holes (6) are processed at all four corners on one side of the pressing plate (9). Round holes (10) for inserting tie bars are processed at all four corners on the side of the hollow shell cylinder (1) facing the pressing plate (9). The round holes (10) and the through holes (6) are concentrically arranged.

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