CN216951095U

CN216951095U - Universal double-piston-rod cylinder

Info

Publication number: CN216951095U
Application number: CN202220755387.1U
Authority: CN
Inventors: 俞添贞; 申铁柱; 邱捷
Original assignee: Changzhou Hengli Pneumatic Technology Co ltd
Current assignee: Changzhou Hengli Pneumatic Technology Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-12
Anticipated expiration: 2032-04-02

Abstract

The utility model relates to the technical field of cylinders, in particular to a universal double-piston-rod cylinder, which comprises: the double-piston rod cylinder comprises a cylinder body and a piston rod; a cavity is arranged in the cylinder body, and air holes communicated with the cavity are formed in the two ends of the cylinder body; the piston rod slides in the cavity, two ends of the piston rod extend to the outer side of the cylinder body, and the middle section of the piston rod is provided with a fitting section which is fitted with the inner wall of the cavity; the universal device comprises a hinge seat, a connecting seat and a connecting block; the shaft pin seat is provided with a first through hole, and the outer side of the hinge seat is provided with a rotating shaft; the connecting seat is arranged in the first through hole and is provided with a second through hole of which the side wall is spherical; the connecting block is fixedly sleeved on the outer side of the cylinder body, and the outer side surface of the connecting block is spherical and is attached to the side wall of the second through hole. The utility model aims to provide a universal double-piston-rod cylinder aiming at the defects in the prior art, which can realize the adjustment of the rotation plane of the cylinder.

Description

Universal double-piston-rod cylinder

Technical Field

The utility model relates to the technical field of cylinders, in particular to a universal double-piston-rod cylinder.

Background

The double-piston-rod cylinder is a cylinder with piston rods extending out of two ends of the cylinder simultaneously, and can be connected with parts on two sides and drive the parts on two sides to move simultaneously. In traditional cylinder mounting form, there is the mounting means who forms jackshaft round pin type cylinder, and this kind of cylinder is articulated through round pin axle and fixing base, makes the cylinder can produce the rotation, makes the part of both sides can also produce synchronous rotation to some special use occasions of adaptation. However, this intermediate shaft pin type cylinder can rotate only on a fixed plane, and has a limited range of application. In addition, errors are inevitably generated in the processes of manufacturing parts and assembling equipment using the air cylinder, so that an included angle is generated between a motion plane of a component and a rotation plane of the air cylinder, and the normal work of the air cylinder is influenced; meanwhile, for equipment which needs to move in a plurality of plane ranges, the existing intermediate shaft pin type air cylinder cannot meet the requirement, the air cylinder can only be installed again after being integrally disassembled, and the operation is inconvenient.

In view of the above problems, the present designer designs a universal double-piston-rod cylinder based on practical experience and professional knowledge that is abundant over many years in engineering application of such products, and actively performs research and innovation in cooperation with the application of theory, so as to realize adjustment of the rotation plane of the cylinder.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a universal double-piston-rod cylinder aiming at the defects in the prior art, and solves the problem that the existing middle shaft pin type cylinder can only rotate on a fixed plane and cannot be adjusted, so that the existing middle shaft pin type cylinder cannot adapt to complicated use conditions.

In order to achieve the above object, the present invention adopts a technical solution comprising:

the double-piston rod cylinder comprises a cylinder body and a piston rod; a cavity is arranged in the cylinder body, and air holes communicated with the cavity are arranged at two ends of the cylinder body; the piston rod slides in the cavity, two ends of the piston rod extend to the outer side of the cylinder body, and the middle section of the piston rod is provided with a joint section which is jointed with the inner wall of the cavity;

the universal device comprises a hinge seat, a connecting seat and a connecting block; the shaft pin seat is provided with a first through hole, and the outer side of the hinge seat is provided with a rotating shaft; the connecting seat is arranged in the first through hole and is provided with a second through hole of which the side wall is spherical; the fixed cover of connecting block is established the cylinder body outside, just the outside face of connecting block is the sphere, and with the lateral wall laminating of second through-hole.

Furthermore, the side surface of the hinged seat and the side surface of the connecting seat are both provided with threaded through holes; the universal device further comprises a fixing screw, and the fixing screw is sequentially screwed into the hinged seat and the threaded through hole of the connecting seat and abuts against the side face of the connecting block.

Furthermore, a rubber pad is fixedly arranged at the bottom of the fixing screw, and the fixing screw abuts against the connecting block through the rubber pad.

Further, a first clamping groove is formed in the end face of the bottom of the fixing screw; the rubber pad is plugged into the first clamping groove and is in interference fit with the first clamping groove.

Further, the central axis of the fixing screw is perpendicular to the central axis of the rotating shaft.

Furthermore, two second clamping grooves are formed in the side wall of the first through hole; the universal device further comprises two check rings, and the two check rings respectively extend into the two second clamping grooves and respectively abut against the end faces of the two ends of the connecting seat.

Further, a threaded section is arranged on the outer side of the cylinder body; the universal device further comprises two clamping nuts which are sleeved on the thread section and respectively abut against the end faces of the two ends of the connecting block.

Furthermore, two ends of the piston rod extending to the outer side of the cylinder body are provided with connecting thread sections.

Through the technical scheme of the utility model, the following technical effects can be realized:

the existing middle shaft pin type cylinder can only rotate on one surface, but the universal device enables the cylinder to rotate on a plurality of surfaces, so that the working range is wider. When the installation direction and the installation angle are not determined, the air cylinder can rotate at multiple angles, has a probing function, can flexibly swing and rotate, and is more convenient to find an installation point. After the rotation angle of the cylinder is adjusted, the angle can be fixed at any time, and the installation form of the cylinder in work is stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a universal double-piston-rod cylinder in an embodiment of the utility model;

FIG. 2 is an enlarged view of FIG. 1 at A in accordance with an embodiment of the present invention;

FIG. 3 is a side cross-sectional view of a gimbal assembly in an embodiment of the present invention;

FIG. 4 is a front view of a gimbal assembly in an embodiment of the present invention;

reference numerals: cylinder body 1, cavity 11, screw thread section 12, piston rod 2, laminating section 21, articulated seat 3, pivot 31, connecting seat 4, connecting block 5, set screw 6, rubber pad 61, retaining ring 7, and jam nut 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

A universal double-piston-rod cylinder is shown in figures 1-4 and comprises:

the double-piston rod cylinder comprises a cylinder body 1 and a piston rod 2; a cavity 11 is arranged in the cylinder body 1, and air holes communicated with the cavity 11 are arranged at two ends of the cylinder body; the piston rod 2 slides in the cavity 11, two ends of the piston rod extend to the outer side of the cylinder body 1, and the middle section of the piston rod is provided with a joint section 21 which is jointed with the inner wall of the cavity 11; gas enters the cylinder body 1 through the gas hole to push the joint section 21 of the piston rod 2, so that the movement of the piston rod 2 is realized; two ends of the piston rod 2 extending to the outer side of the cylinder body 1 are provided with connecting thread sections for connecting with external parts;

the universal device comprises a hinge seat 3, a connecting seat 4 and a connecting block 5; the shaft pin seat is provided with a first through hole, the outer side of the hinge seat 3 is provided with a rotating shaft 31, and the rotating shaft 31 is hinged with a part of an external device to realize the rotation of the double-piston-rod cylinder; the connecting seat 4 is arranged in the first through hole and is provided with a second through hole of which the side wall is spherical; the connecting block 5 is fixedly sleeved on the outer side of the cylinder body 1, and the outer side surface of the connecting block 5 is a spherical surface and is attached to the side wall of the second through hole.

The specific working principle is as follows: be the second through-hole lateral wall of sphere through connecting seat 4, and connecting block 5 is the lateral surface of sphere, formed spherical pair, thereby make the rotation that can produce multiple angle between connecting seat 4 and the connecting block 5, again with connecting seat 4 and connecting block 5 respectively with articulated seat 3 and cylinder body 1, then just can make double piston rod cylinder can carry out the regulation of a plurality of angles in pivot 31 relatively, thereby make double piston rod cylinder can carry out work at a plurality of planes of revolution.

Preferably, the side surface of the hinge seat 3 and the side surface of the connecting seat 4 are both provided with threaded through holes; the universal device further comprises a fixing screw 6, and the fixing screw 6 is sequentially screwed into the threaded through holes of the hinged seat 3 and the connecting seat 4 and abuts against the side face of the connecting block 5. In the structure, if the fixing screw 6 is loosened, the spherical pair between the connecting seat 4 and the connecting block 5 can freely rotate, so that the double-piston-rod cylinder can be freely adjusted at any angle; if the fixing screw 6 is screwed, the spherical pair between the connecting seat 4 and the connecting block 5 can be locked, so that the double-piston-rod cylinder can be kept at a fixed angle.

The bottom of the fixing screw 6 is preferably fixedly provided with a rubber pad 61, the fixing screw 6 abuts against the connecting block 5 through the rubber pad 61, friction force is increased through the rubber pad 61, and the locking effect of the fixing screw 6 is improved. The end face of the bottom of the fixing screw 6 is preferably provided with a first clamping groove; rubber pad 61 is plugged in first draw-in groove to with first draw-in groove interference fit, prevent that rubber pad 61 is crooked or drop, guarantee set screw 6's locking effect. Since the rotating shaft 31 needs to be hinged to an external component, which may affect the screwing of the fixing screw 6, the central axis of the fixing screw 6 is preferably set to be perpendicular to the central axis of the rotating shaft 31, so that the mounting position of the fixing screw 6 is staggered from the rotating shaft 31, and it is ensured that a person can conveniently screw or loosen the fixing screw 6.

Two second clamping grooves are formed in the side wall of the first through hole; the universal device also comprises two check rings 7; after connecting seat 4 is plugged into first through-hole, stretch into two second draw-in grooves respectively with two retaining rings 7 again, and support the both ends terminal surface of connecting seat 4 respectively to fix connecting seat 4, made things convenient for the installation of connecting seat 4.

The outer side of the cylinder body 1 is provided with a threaded section 12; the universal device also comprises two clamping nuts 8 which are sleeved on the threaded section 12 and respectively abut against the end surfaces of the two ends of the connecting block 5, and the cylinder body 1 can be effectively prevented from loosening through a locking structure of the double nuts, so that the reliability of the air cylinder is ensured.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A universal double piston rod cylinder, comprising:

the double-piston rod cylinder comprises a cylinder body (1) and a piston rod (2); a cavity (11) is arranged in the cylinder body (1), and air holes communicated with the cavity (11) are formed in the two ends of the cylinder body; the piston rod (2) slides in the cavity (11), two ends of the piston rod extend to the outer side of the cylinder body (1), and the middle section of the piston rod is provided with a joint section (21) which is jointed with the inner wall of the cavity (11);

the universal device comprises a hinge seat (3), a connecting seat (4) and a connecting block (5); the shaft pin seat is provided with a first through hole, and the outer side of the hinge seat (3) is provided with a rotating shaft (31); the connecting seat (4) is arranged in the first through hole and is provided with a second through hole with a spherical side wall; the fixed cover of connecting block (5) is established the cylinder body (1) outside, just the sphere is personally submitted in the outside of connecting block (5) and with the lateral wall laminating of second through-hole.

2. The universal double-piston-rod cylinder according to claim 1, characterized in that the side of the hinge seat (3) and the side of the connecting seat (4) are provided with threaded through holes; the universal device further comprises a fixing screw (6), and the fixing screw (6) is sequentially screwed into the hinged base (3) and the threaded through hole of the connecting base (4) and abuts against the side face of the connecting block (5).

3. The universal double piston rod cylinder according to claim 2, characterized in that a rubber pad (61) is fixedly arranged at the bottom of the fixing screw (6), and the fixing screw (6) is abutted against the connecting block (5) through the rubber pad (61).

4. The universal double-piston-rod cylinder according to claim 3, characterized in that a first clamping groove is arranged on the bottom end face of the fixing screw (6); the rubber pad (61) is plugged into the first clamping groove and is in interference fit with the first clamping groove.

5. The gimbaled dual-piston-rod cylinder according to claim 2, characterized in that the central axis of the set screw (6) is mutually perpendicular to the central axis of the spindle (31).

6. The universal double-piston-rod cylinder according to claim 1, wherein two second clamping grooves are arranged on the side wall of the first through hole; the universal device further comprises two check rings (7), wherein the two check rings (7) respectively extend into the two second clamping grooves and respectively abut against the end faces of the two ends of the connecting seat (4).

7. The universal double piston rod cylinder according to claim 1, characterized in that a threaded section (12) is provided on the outside of the cylinder body (1); the universal device further comprises two clamping nuts (8) which are sleeved on the thread section (12) and respectively abut against the end faces of the two ends of the connecting block (5).

8. The universal double piston rod cylinder according to claim 1, characterized in that the two ends of the piston rod (2) extending to the outside of the cylinder body (1) are provided with connecting thread sections.