Novel hydraulic cylinder piston structure device

Abstract

The utility model discloses a novel hydraulic cylinder piston structure device, which belongs to the technical field of hydraulic cylinders and comprises a cylinder body, a piston body is arranged in the cylinder body, a mounting ring is arranged on the side edge of the piston body, a piston rod is arranged on the other side of the mounting ring, and a piston telescopic limiting mechanism is arranged on the inner wall of the cylinder body. According to the utility model, the piston rod mounting and fixing mechanism is arranged, so that the piston rod and the piston can be conveniently connected and fixed, the connection firmness of the piston rod and the piston is better, and the better stability of the piston body during use can be ensured; the mechanism is simple in structure and relatively low in manufacturing cost, by arranging the piston stretching and retracting limiting mechanism, when the piston body stretches and retracts in the cylinder body, the stability of the piston body in the movement process can be guaranteed, and the piston body cannot rotate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydraulic cylinder technical field, concretely relates to a novel hydraulic cylinder piston structure device. BACKGROUND

[0002] Hydraulic cylinder is the hydraulic energy conversion mechanical energy, do linear reciprocating motion (or swing motion) hydraulic actuator. It is simple in structure, reliable in operation. When it is used to realize reciprocating motion, the speed reducer can be dispensed with, and there is no transmission gap, and the movement is stable, so it is widely used in various mechanical hydraulic systems.

[0003] The existing hydraulic cylinder piston structure is inconvenient to install and fix the piston in actual use, and the fixing firmness of the piston is relatively poor, and the use stability is poor. The sliding stability between the piston and the cylinder body is relatively poor, and the piston itself is prone to rotation. UTILITY MODEL CONTENT

[0004] To solve the problems in the background art, the utility model provides a novel hydraulic cylinder piston structure device, which has the characteristics of convenient installation and fixation of the piston rod and the piston, and better stability of the piston extension process.

[0005] To achieve the above object, the utility model provides the following technical scheme: a novel hydraulic cylinder piston structure device, comprising a cylinder body, the inside of the cylinder body is provided with a piston body, the side of the piston body is provided with a mounting ring, the other side of the mounting ring is provided with a piston rod, the inner wall of the cylinder body is provided with a piston extension limiting mechanism, and the piston rod and the mounting ring are connected and fixed through a piston rod mounting and fixing mechanism.

[0006] Preferably, the piston rod mounting and fixing mechanism comprises a mounting column, a screw hole one, a mounting sleeve, a bolt one and a mounting groove, the side of the mounting ring is provided with the mounting column, one end of the piston rod is provided with the mounting sleeve, the side of the mounting sleeve is provided with the mounting groove, the mounting sleeve and the mounting column are fixedly connected through the bolt one, and the side of the mounting column is provided with the screw hole one corresponding to the bolt one.

[0007] Preferably, the piston rod mounting and fixing mechanism further comprises a plug hole and a plug column, the inside of the mounting sleeve is provided with the plug column, and the side of the mounting column is provided with the plug hole corresponding to the plug column.

[0008] Preferably, the piston rod mounting and fixing mechanism further comprises a positioning rod and a positioning hole, the inside of the plug hole is provided with the positioning rod, and the side of the plug column is provided with the positioning hole corresponding to the positioning rod.

[0009] Preferably, the piston telescopic limiting mechanism comprises a limiting groove, a bolt two, a screw hole two and a limiting convex strip, the inner wall of the cylinder body is provided with the limiting convex strip, the side edge of the piston body and the mounting ring is provided with the limiting groove corresponding to the limiting convex strip, the mounting ring and the piston body are fixedly connected through the bolt two, and the side edge of the piston body is provided with the screw hole two corresponding to the bolt two.

[0010] Preferably, the side edge of the mounting ring is provided with the embedding groove corresponding to the bolt two.

[0011] Compared with the prior art, the piston telescopic limiting mechanism comprises a limiting groove, a bolt two, a screw hole two and a limiting convex strip, the inner wall of the cylinder body is provided with the limiting convex strip, the side edge of the piston body and the mounting ring is provided with the limiting groove corresponding to the limiting convex strip, the mounting ring and the piston body are fixedly connected through the bolt two, and the side edge of the piston body is provided with the screw hole two corresponding to the bolt two.

[0012] 1、The piston rod mounting and fixing mechanism is simple in structure and relatively low in manufacturing cost.

[0013] 2、The piston telescopic limiting mechanism can guarantee the stability of the piston body during movement and prevent the piston body from rotating. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a sectional view of the utility model;

[0015] Fig. 2 It is a sectional view of the utility model;

[0016] Fig. 3 It is a sectional view of the utility model;

[0017] In the drawing: 1, cylinder; 2, piston telescopic limiting mechanism; 21, limiting groove; 22, bolt two; 23, embedding groove; 24, screw hole two; 25, limiting convex strip; 3, piston rod; 4, piston rod mounting and fixing mechanism; 41, positioning rod; 42, insertion hole; 43, mounting column; 44, screw hole one; 45, positioning hole; 46, insertion column; 47, mounting sleeve; 48, bolt one; 49, mounting groove; 5, mounting ring; 6, piston body. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. Embodiment 1

[0019] Referring to Figs. 1-3 The utility model provides the following technical scheme: A novel hydraulic cylinder piston structure device, including cylinder body 1, the inside of cylinder body 1 is provided with piston body 6, the side of piston body 6 is provided with mounting ring 5, the other side of mounting ring 5 is provided with piston rod 3, the inner wall of cylinder body 1 is provided with piston telescopic limiting mechanism 2, and piston rod 3 is connected and fixed with mounting ring 5 through piston rod installation fixed mechanism 4.

[0020] Specifically, piston rod installation fixed mechanism 4 includes installation column 43, screw hole one 44, mounting sleeve 47, bolt one 48 and installation groove 49, the side of mounting ring 5 is provided with installation column 43, one end of piston rod 3 is provided with mounting sleeve 47, the side of mounting sleeve 47 is provided with installation groove 49, mounting sleeve 47 is fixedly connected with installation column 43 through bolt one 48, the side of installation column 43 is provided with screw hole one 44 corresponding to bolt one 48,

[0021] By adopting the above technical scheme, when fixing piston rod 3 and piston body 6, mounting sleeve 47 is clamped in the inside of installation column 43, installation column 43 is correspondingly inserted with installation groove 49, and then the connection and fixation of piston rod 3 and piston body 6 can be realized through bolt one 48 and screw hole one 44.

[0022] Specifically, piston rod installation fixed mechanism 4 further includes insertion hole 42 and insertion column 46, the inside of mounting sleeve 47 is provided with insertion column 46, the side of installation column 43 is provided with insertion hole 42 corresponding to insertion column 46,

[0023] By adopting the above technical scheme, when piston rod 3 and piston body 6 are connected and fixed, insertion column 46 in the inside of mounting sleeve 47 is inserted into insertion hole 42 in the inside of installation column 43, so that the fixed firmness of piston rod 3 and piston body 6 is improved.

[0024] Specifically, piston rod installation fixed mechanism 4 further includes positioning rod 41 and positioning hole 45, the inside of insertion hole 42 is provided with positioning rod 41, the side of insertion column 46 is provided with positioning hole 45 corresponding to positioning rod 41,

[0025] By adopting the above technical scheme, when insertion column 46 is inserted into insertion hole 42, positioning rod 41 is inserted into the inside of positioning hole 45, so that the fixed firmness of piston rod 3 and piston body 6 is further improved.

[0026] In use, when the piston rod 3 and the piston body 6 are fixed, the mounting sleeve 47 is clamped in the inside of the mounting column 43, the mounting column 43 is inserted into the mounting groove 49 in correspondence, and then the bolt one 48 is matched with the screw hole one 44, so that the connection and fixation of the piston rod 3 and the piston body 6 are realized. When the piston rod 3 and the piston body 6 are connected and fixed, the insertion column 46 in the inside of the mounting sleeve 47 is inserted into the insertion hole 42 in the inside of the mounting column 43, so that the fixation firmness of the piston rod 3 and the piston body 6 is improved. When the insertion column 46 is inserted into the insertion hole 42, the positioning rod 41 is inserted into the inside of the positioning hole 45, so that the fixation firmness of the piston rod 3 and the piston body 6 is further improved. Embodiment 2

[0027] The difference between the embodiment and the embodiment 1 is that the piston telescopic limiting mechanism 2 comprises a limiting groove 21, a bolt two 22, a screw hole two 24 and a limiting convex strip 25, the inner wall of the cylinder body 1 is provided with the limiting convex strip 25, the side edge of the piston body 6 and the mounting ring 5 is provided with the limiting groove 21 corresponding to the limiting convex strip 25, the mounting ring 5 and the piston body 6 are fixedly connected through the bolt two 22, the side edge of the piston body 6 is provided with the screw hole two 24 corresponding to the bolt two 22,

[0028] Through the above technical scheme, when the piston body 6 slides, the limiting convex strip 25 of the inner wall of the cylinder body 1 slides in the inside of the limiting groove 21, so that the stability of the sliding process of the piston body 6 is improved, and the connection and fixation of the mounting ring 5 and the piston body 6 are realized through the bolt two 22 and the screw hole two 24.

[0029] Specifically, the side edge of the mounting ring 5 is provided with the embedding groove 23 corresponding to the bolt two 22,

[0030] Through the above technical scheme, through the setting of the embedding groove 23 of the side edge of the mounting ring 5, the problem of the exposure of the bolt two 22 can be avoided.

[0031] In use, when the piston body 6 slides, the limiting convex strip 25 of the inner wall of the cylinder body 1 slides in the inside of the limiting groove 21, so that the stability of the sliding process of the piston body 6 is improved, and the connection and fixation of the mounting ring 5 and the piston body 6 are realized through the bolt two 22 and the screw hole two 24. Through the setting of the embedding groove 23 of the side edge of the mounting ring 5, the problem of the exposure of the bolt two 22 can be avoided.

[0032] The utility model discloses a working principle and use flow: the utility model discloses when using, when fixing piston rod 3 with piston body 6, the installation sleeve 47 is clamped in the inside of installation column 43, makes installation column 43 and installation groove 49 corresponding insertion, passes through bolt one 48 cooperation screw hole one 44 again, can realize piston rod 3 with the connecting fixed of piston body 6, when piston rod 3 with piston body 6 are connected fixed, when this installation sleeve 47 inside insertion post 46 will insert into the insertion hole 42 of installation column 43 inside, thereby promote the fixed firmness of piston rod 3 with piston body 6, when insertion post 46 inserts insertion hole 42, when this positioning rod 41 will insert the inside of positioning hole 45, thereby further promote the fixed firmness of piston rod 3 with piston body 6, when piston body 6 slides, will make the limiting boss 25 of cylinder body 1 inner wall in the inside sliding of limiting groove 21, thereby promote the stability of piston body 6 sliding process, through bolt two 22 and screw hole two 24 can realize the connecting fixed of installation ring 5 with piston body 6, through the setting of the embedded slot 23 of installation ring 5 side, can avoid the problem of bolt two 22 exposure.

[0033] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A novel hydraulic cylinder piston structure device, comprising a cylinder body (1), a piston body (6) disposed inside the cylinder body (1), a mounting ring (5) disposed on the side of the piston body (6), and a piston rod (3) disposed on the other side of the mounting ring (5), characterized in that: The inner wall of the cylinder body (1) is provided with a piston telescopic limiting mechanism (2), and the piston rod (3) and the mounting ring (5) are connected and fixed via a piston rod mounting fixing mechanism (4); The piston rod mounting and fixing mechanism (4) includes a mounting column (43), a screw hole (44), a mounting sleeve (47), a bolt (48) and a mounting groove (49). The side of the mounting ring (5) is provided with a mounting column (43), one end of the piston rod (3) is provided with a mounting sleeve (47), the side of the mounting sleeve (47) is provided with a mounting groove (49), the mounting sleeve (47) and the mounting column (43) are fixedly connected by a bolt (48), and the side of the mounting column (43) is provided with a screw hole (44) corresponding to the bolt (48); The piston rod mounting and fixing mechanism (4) further comprises a socket (42) and an insertion column (46); the insertion column (46) is provided inside the mounting sleeve (47); and a socket (42) corresponding to the insertion column (46) is provided on the side of the mounting column (43); The piston rod mounting and fixing mechanism (4) further comprises a positioning rod (41) and a positioning hole (45), wherein the positioning rod (41) is provided inside the insertion hole (42), and a positioning hole (45) corresponding to the positioning rod (41) is provided on the side of the insertion column (46).

2. A novel hydraulic cylinder piston structure device according to claim 1, characterized in that: The piston telescopic limiting mechanism (2) comprises a limiting groove (21), two bolts (22), two screw holes (24) and a limiting convex strip (25). The inner wall of the cylinder body (1) is provided with a limiting convex strip (25). The side edges of the piston body (6) and the mounting ring (5) are provided with a limiting groove (21) corresponding to the limiting convex strip (25). The mounting ring (5) and the piston body (6) are fixedly connected by two bolts (22). The side edge of the piston body (6) is provided with two screw holes (24) corresponding to the two bolts (22).

3. A novel hydraulic cylinder piston structure device according to claim 2, characterized in that: An embedding groove (23) corresponding to the second bolt (22) is provided on the side of the mounting ring (5).

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