A pull rod type cylinder piston rod

Abstract

The present invention discloses a pull rod type cylinder piston rod, comprising a rod body, a boss is provided at the center of the outer wall of the bottom of the rod body, and a flange is sleeved on the outer wall of the boss, through holes distributed at equal distances are opened along the outer edge of the top of the flange, and mounting bolts are inserted in the through holes, a fixing plate is clamped at the bottom of the flange, and a polygonal column is provided at the bottom of the fixing plate, a slot is provided at the center of the outer wall of the top of the rod body, and a clamping block is clamped on the inner wall of the slot, a hexagonal block is provided at the top of the clamping block, and a threaded column is provided at the top of the hexagonal block, a spiral ring is screwed on the outer wall of the threaded column, and a first threaded hole is opened at the midpoint perpendicular of the polygonal column and the bottom of the midpoint perpendicular of the rod body. The present invention avoids a large amount of milling work directly on the piston rod through the split arrangement method of the flange, the hexagonal block and the threaded column with the rod body, reduces material waste, reduces milling cost, and thus saves the production cost of the piston rod and increases enterprise efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of piston rods, and in particular to a pull rod type cylinder piston rod. Background Art

[0002] The cylinder is a cylindrical metal part that guides the piston to perform linear reciprocating motion in the cylinder. The air in the engine cylinder converts heat energy into mechanical energy through expansion; the gas in the compressor cylinder is compressed by the piston to increase the pressure.

[0003] The piston rod is one of the core components of the cylinder. The piston rod is usually an integrally formed long cylindrical structure. A flange is usually provided at the bottom to facilitate fixation to the piston. Common connectors such as hexagonal prisms and threaded columns are generally provided at the top to facilitate fixation to external machinery. These top and bottom parts are usually formed by turning and milling on the piston rod. The turning and milling cost is relatively high, and the material waste is also relatively serious, resulting in an increase in the cost of the piston rod and high production costs. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a pull rod type cylinder piston rod.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A pull rod type cylinder piston rod comprises a rod body, a boss is provided at the center of the outer wall at the bottom of the rod body, and a flange is sleeved on the outer wall of the boss, through holes distributed at equal distances are opened along the outer edge of the top of the flange, and mounting bolts are inserted in the through holes, a fixing plate is clamped at the bottom of the flange, and a polygonal column is provided at the bottom of the fixing plate, a groove is opened at the center of the outer wall at the top of the rod body, and a block is clamped on the inner wall of the groove, a hexagonal block is provided on the top of the block, and a threaded column is provided on the top of the hexagonal block, and a threaded ring is screwed on the outer wall of the threaded column.

[0007] Preferably, a first threaded hole is formed at the bottom of the perpendicular midline of the polygonal column and the perpendicular midline of the rod body, and a bottom bolt is screwed onto the inner wall of the first threaded hole.

[0008] Preferably, a second threaded hole is formed at the perpendicular midline of the threaded column and at the top of the perpendicular midline of the rod body, and a top bolt is threadedly connected to the inner wall of the second threaded hole.

[0009] Preferably, a stepped circular through groove is opened at the center of the top of the flange, and the specifications of the top of the circular through groove are adapted to the specifications of the boss, and the specifications of the bottom of the circular through groove are adapted to the specifications of the fixing plate.

[0010] Preferably, annular grooves are formed at the top and bottom of the outer wall of the rod.

[0011] Preferably, the rod body and the protruding column are integrally formed of metal materials, the fixing plate and the polygonal column are integrally formed of metal materials, and the clamping block, the hexagonal block and the threaded column are integrally formed of metal materials.

[0012] The beneficial effects of the present invention are:

[0013] 1. The split setting method of flange, hexagonal block, threaded column and rod body can avoid a large amount of turning and milling work directly on the piston rod, reduce material waste, reduce turning and milling costs, thereby saving piston rod production costs and increasing enterprise efficiency.

[0014] 2. Through the setting of the boss and the fixing plate, the flange can be firmly fixed at the bottom end of the rod body to ensure the overall rigidity of the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a pull rod type cylinder piston rod proposed by the present invention;

[0016] Figure 2 This is a schematic diagram of the bottom half-section structure of a pull rod type cylinder piston rod proposed by the present invention.

[0017] In the figure: 1 rod body, 2 boss, 3 flange, 4 through hole, 5 mounting bolt, 6 fixing plate, 7 polygonal column, 8 first threaded hole, 9 bottom bolt, 10 clamping block, 11 hexagonal block, 12 threaded column, 13 spiral ring, 14 top bolt, 15 annular groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-2A pull rod type cylinder piston rod comprises a rod body 1, a boss 2 is arranged at the center of the outer wall at the bottom of the rod body 1, a flange 3 is sleeved on the outer wall of the boss 2, through holes 4 with equal distances are opened at the top of the flange 3 along the outer edge, mounting bolts 5 are inserted in the through holes 4, a fixing plate 6 is clamped at the bottom of the flange 3, a polygonal column 7 is arranged at the bottom of the fixing plate 6, a slot is opened at the center of the outer wall at the top of the rod body 1, a clamping block 10 is clamped on the inner wall of the slot, a hexagonal block 11 is arranged at the top of the clamping block 10, a threaded column 12 is arranged at the top of the hexagonal block 11, a screw ring 13 is screwed on the outer wall of the threaded column 12, and a first threaded hole 8 is opened at the midpoint perpendicular line of the polygonal column 7 and the bottom of the midpoint perpendicular line of the rod body 1 A bottom bolt 9 is screwed on the inner wall of the first threaded hole 8, a second threaded hole is opened at the mid-vertical line of the threaded column 12 and the top of the mid-vertical line of the rod body 1, a top bolt 14 is screwed on the inner wall of the second threaded hole, a stepped circular through groove is opened at the center of the top of the flange 3, the top specification of the circular through groove is adapted to the specification of the boss 2, the bottom specification of the circular through groove is adapted to the specification of the fixed plate 6, annular grooves 15 are opened at the top and bottom of the outer wall of the rod body 1, the rod body 1 and the boss 2 are an integrally formed structure of metal material, the fixed plate 6 and the polygonal column 7 are an integrally formed structure of metal material, and the block 10, the hexagonal block 11 and the threaded column 12 are an integrally formed structure of metal material.

[0020] Working principle: Assemble the piston rod as shown in the figure. After the assembly is completed, insert the polygonal column 7 into the top of the piston and fix it with the flange 3 and the mounting bolts 5. Annular grooves 15 are reserved at the top and bottom of the rod body 1 to facilitate the installation of the sealing ring. The split setting method of the flange 3, the hexagonal block 11 and the threaded column 12 and the rod body 1 can avoid a lot of turning and milling work directly on the piston rod, reduce material waste, reduce turning and milling costs, and thus save the production cost of the piston rod and increase enterprise efficiency. Through the setting of the boss 2 and the fixed plate 6, the flange can be firmly fixed to the bottom end of the rod body 1 to ensure the overall rigidity of the piston rod.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pull rod type cylinder piston rod, comprising a rod body (1), characterized in that: A boss (2) is provided at the center of the outer wall at the bottom of the rod body (1), and a flange (3) is sleeved on the outer wall of the boss (2); through holes (4) are opened at equal distances along the outer edge of the top of the flange (3), and mounting bolts (5) are inserted into the through holes (4); a fixing plate (6) is clamped at the bottom of the flange (3), and a multi-prism (7) is provided at the bottom of the fixing plate (6); a slot is opened at the center of the outer wall at the top of the rod body (1), and a clamping block (10) is clamped on the inner wall of the slot; a hexagonal block (11) is provided at the top of the clamping block (10), and a threaded column (12) is provided at the top of the hexagonal block (11); a screw ring (13) is screwed on the outer wall of the threaded column (12); A first threaded hole (8) is formed at the midpoint perpendicular line of the polygonal column (7) and at the bottom of the midpoint perpendicular line of the rod body (1), and a bottom bolt (9) is screwed onto the inner wall of the first threaded hole (8); A second threaded hole is formed at the midpoint of the threaded column (12) and at the top of the midpoint of the rod body (1), and a top bolt (14) is screwed onto the inner wall of the second threaded hole; A stepped circular through groove is formed at the center of the top of the flange (3), and the top specification of the circular through groove matches the specification of the boss (2), and the bottom specification of the circular through groove matches the specification of the fixing plate (6); The top and bottom of the outer wall of the rod body (1) are both provided with annular grooves (15); The rod body (1) and the convex column (2) are integrally formed structures made of metal material, the fixing plate (6) and the multi-prism column (7) are integrally formed structures made of metal material, and the clamping block (10), the hexagonal block (11) and the threaded column (12) are integrally formed structures made of metal material.

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