CN213331457U - Air compressor machine piston head structure convenient to replace - Google Patents

Abstract

The utility model relates to the technical field of air compressors, in particular to an air compressor piston head structure convenient to replace, which comprises a connecting rod, a mounting seat and a fixed shaft, wherein the top end of the connecting rod is hinged with the mounting seat through a pin shaft, the upper end surface of the mounting seat is fixedly connected with the fixed shaft, the periphery of the bottom of the fixed shaft is provided with threads, the bottom of the fixed shaft is in threaded connection with a nut, the fixed shaft passes through a sleeve, the inner side of the sleeve is provided with threads, the top of the fixed shaft is fixedly connected with a plurality of inner fixed blocks, the inner fixed blocks are hinged with one end of a supporting rod, the other end of the supporting rod is hinged with an outer fixed block, the outer fixed blocks are fixedly connected with the bottom of the inner side of a clamping plate, the top of the inner side of the clamping plate is, the disassembly is convenient, the bayonet lock does not need to be pulled out difficultly, the operation is convenient, the time can be saved, and the influence on the normal work is avoided.

Description

Air compressor machine piston head structure convenient to replace

Technical Field

The utility model belongs to the technical field of the air compressor machine, what especially relate to is an air compressor machine piston head structure convenient to replace.

Background

The working principle of the air compressor is that the piston head is driven by the connecting rod which reciprocates to reciprocate in the piston cavity, the pressure of the internal cavity is increased and reduced, and accordingly air suction and air compression are achieved.

The piston head is easy to wear because of reciprocating motion in the cylinder, and needs to be replaced at regular time in order to ensure the sealing property, the piston head is difficult to pull out by using a method of bayonet lock connection when needing to be replaced, and the piston head needs to be replaced in a machine disassembling mode, thereby wasting time and labor, wasting a large amount of precious time and influencing normal work.

To this end, we propose a piston head structure of an air compressor which is easy to replace, and which solves the above problems.

SUMMERY OF THE UTILITY MODEL

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

An object of the utility model is to overcome above-mentioned not enough, provide an air compressor machine piston head structure convenient to replacement.

In order to achieve the above object, the technical solution of the present invention is: a piston head structure of an air compressor convenient to replace comprises a connecting rod, a mounting seat and a fixed shaft, wherein the top end of the connecting rod is hinged with the mounting seat through a pin shaft, the upper end surface of the mounting seat is fixedly connected with a fixed shaft, the periphery of the bottom of the fixed shaft is provided with threads, the bottom of the fixed shaft is in threaded connection with a nut, the fixed shaft penetrates through the sleeve, threads are arranged on the inner side of the sleeve, the top of the fixed shaft is fixedly connected with a plurality of inner fixed blocks, the inner fixed block is hinged with one end of a supporting rod, the other end of the supporting rod is hinged with the outer fixed block, the outer fixing block is fixedly connected with the bottom of the inner side of the clamping plate, the clamping block is fixedly arranged at the top of the inner side of the clamping plate, the splint outside is equipped with the screw thread, splint outside threaded connection sleeve is inboard, the inboard clearance fit of clamp splice and draw-in groove, the draw-in groove is in tail shaft week side, tail shaft up end fixed connection piston head.

Preferably, the axis of the bottom of the sleeve is provided with a through hole, and the radial size of the through hole is smaller than that of the nut and larger than that of the fixing shaft.

Preferably, the cross section of the clamping plate is arc-shaped, threads are arranged on the outer side of the clamping plate, and the outer side of the clamping plate is in threaded connection with the inner side of the sleeve.

Preferably, the periphery of the piston head is provided with an oil ring groove and an air ring groove.

Preferably, the clamping blocks are four in number and are annularly distributed on the periphery of the fixed shaft.

Preferably, the clamping blocks and the clamping grooves are identical in cross-sectional shape.

Preferably, the tail shaft is arranged at the axial center of the piston head.

Through adopting foretell technical scheme, the beneficial effects of the utility model are that:

the piston head can be clamped by clamping the tail shaft by clamping the clamping block into the clamping groove and extruding the clamping plate to the axis of the tail shaft, so that the disassembly is convenient, the clamping pin does not need to be pulled out difficultly, the operation is convenient, the time can be saved, and the influence on the normal work is avoided;

through the inboard and splint outside threaded connection of sleeve, the sleeve of screwing pins the position of splint, prevents that the clamp splice is not hard up, can lock the sleeve through the nut of screwing, prevents that the sleeve is not hard up, can avoid taking place not hard up to its dual locking, is to connect more firmly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Clearly, such and other objects of the present invention will become more apparent from the detailed description of the preferred embodiments hereinafter set forth in the various drawings and drawings.

These and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments, taken in conjunction with the accompanying drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the description of embodiments of the invention, serve to explain the invention and not to limit the invention.

In the drawings, like parts are designated with like reference numerals, and the drawings are schematic and not necessarily drawn to scale.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 one or several embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to such drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the piston head structure of the present invention;

fig. 3 is a schematic cross-sectional view of the middle tail shaft of the present invention.

In the figure: 1. a strut; 2. an inner fixed block; 3. a sleeve; 4. a nut; 5. a mounting seat; 6. a connecting rod; 7. a clamping block; 8. a splint; 9. an outer fixed block; 10. a pin shaft; 11. a fixed shaft; 12. an oil ring groove; 13. a gas ring groove; 15. a tail shaft; 16. a piston head; 31. and a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected through a transition structure, but are connected through a connection structure to form a whole. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the utility model provides a technical scheme: a piston head structure of an air compressor convenient to replace comprises a connecting rod 6, a mounting seat 5 and a fixed shaft 11, wherein the top end of the connecting rod 6 is hinged with the mounting seat 5 through a pin shaft 10, so that the mounting seat 5 can rotate within a certain range, and the upper end surface of the mounting seat 5 is fixedly connected with the fixed shaft 11 and can play a role in fixing;

the periphery of the bottom of the fixed shaft 11 is provided with threads, the bottom of the fixed shaft 11 is in threaded connection with the nut 4, the sleeve 3 can be clamped tightly by screwing the nut 4 to prevent the sleeve from loosening, the fixed shaft 11 penetrates through the sleeve 3, and the sleeve 3 can slide up and down on the periphery of the fixed shaft 11;

threads are arranged on the inner side of the sleeve 3, the top of the fixed shaft 11 is fixedly connected with a plurality of inner fixed blocks 2, the inner fixed blocks 2 are hinged with one ends of the supporting rods 1, the supporting rods 1 can move around the inner fixed blocks 2, the other ends of the supporting rods 1 are hinged with outer fixed blocks 9, the supporting rods 2 can move around the outer fixed blocks 9, the outer fixed blocks 9 are fixedly connected with the bottom of the inner side of the clamping plate 8, and the outer fixed blocks 9 can drive the clamping plate 8 to move;

the top of the inner side of the clamping plate 8 is fixedly provided with a clamping block 7, the outer side of the clamping plate 8 is provided with threads, the outer side of the clamping plate 8 is in threaded connection with the inner side of the sleeve 3, the position of the clamping plate 8 can be locked when the sleeve 3 is screwed, the clamping block 7 is prevented from loosening, the clamping block 7 is in clearance fit with the inner side of the clamping groove 14, the clamping block 7 can be clamped into the inner side of the clamping,

the clamping groove 14 is arranged on the periphery of the tail shaft 15, and the upper end face of the tail shaft 15 is fixedly connected with the piston head 16, so that the tail shaft 15 is clamped, and the piston head 16 is fixed;

a through hole 31 is formed in the axis of the bottom of the sleeve 3, the radial size of the through hole 31 is smaller than that of the nut 4, the nut 4 can lock the sleeve 3 and is larger than that of the fixed shaft 11, and the sleeve 3 can slide on the fixed shaft 11;

the section of the clamping plate 8 is arc-shaped, so that the clamping plate can be conveniently screwed into the inner side of the sleeve 3, the outer side of the clamping plate 8 is provided with threads, and the outer side of the clamping plate 8 is in threaded connection with the inner side of the sleeve 3, so that the clamping plate 8 can be clamped and the position of the clamping plate can be locked;

the periphery of the piston head 16 is provided with an oil ring groove 12 and an air ring groove 13, an oil ring can be clamped on the oil ring groove 12, an air ring can be clamped on the air ring groove 13, the sealing performance of the piston head 16 is enhanced, the four clamping blocks 7 are arranged, and are annularly distributed on the periphery of the fixed shaft 11, so that the connection is firmer, and the deviation is prevented;

the clamping block 7 and the clamping groove 14 have the same cross section shape, and can be better inserted into the clamping groove 14 to be matched together;

the tail shaft 15 is arranged at the axial position of the piston head 16, so that the stability of the piston head 16 during movement can be enhanced.

The working principle is as follows: the utility model discloses during the use, at first nut 4 and sleeve 3 rotate downwards, loosen splint 8, extract clamp splice 7 on the old piston head 16, go into the draw-in groove 14 on new piston head 16 bottom tailshaft 15 to clamp splice 7 card, 15 axle center extrusion splint 8 of tailshaft, 7 chucking tailshaft 15 of clamp splice, just can block piston head 16, through 3 inboard and splint 8 outside threaded connection of sleeve, screw sleeve 3 and pin splint 8's position, prevent that clamp splice 7 is not hard up, through-hole 31 radial dimension is less than 4 radial dimension of nut, nut 4 can locking sleeve 3, prevent that sleeve 3 is not hard up, just accomplished piston head 16's replacement, and convenient for operation.

It is to be understood that the disclosed embodiments are not limited to the particular process steps or materials disclosed herein, but rather, are extended to equivalents thereof as would be understood by those of ordinary skill in the relevant art. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.

Claims (7)

1. The utility model provides an air compressor machine piston head structure convenient to replacement, includes connecting rod (6), mount pad (5) and fixed axle (11), its characterized in that: connecting rod (6) top is through round pin axle (10) articulated connection mount pad (5), up end fixed connection fixed axle (11) on mount pad (5), fixed axle (11) bottom week side is equipped with the screw thread, fixed axle (11) bottom threaded connection nut (4), sleeve (3) inboard is passed to fixed axle (11), sleeve (3) inboard is equipped with the screw thread, a plurality of interior fixed blocks (2) of fixed axle (11) top fixed connection, interior fixed block (2) articulated connection branch (1) one end, branch (1) other end is articulated to connect outer fixed block (9), outer fixed block (9) fixed connection splint (8) inboard bottom, splint (8) inboard top fixed mounting has clamp splice (7), splint (8) outside is equipped with the screw thread, splint (8) outside threaded connection sleeve (3) inboard, the clamping block (7) is in clearance fit with the inner side of the clamping groove (14), the clamping groove (14) is arranged on the periphery side of the tail shaft (15), and the upper end face of the tail shaft (15) is fixedly connected with the piston head (16).

2. The air compressor piston head structure convenient to replace of claim 1, characterized in that: the sleeve (3) bottom axle center is equipped with through-hole (31), through-hole (31) radial dimension is less than nut (4) radial dimension, and is greater than fixed axle (11) radial dimension.

3. The air compressor piston head structure convenient to replace of claim 1, characterized in that: the cross section of the clamping plate (8) is arc-shaped, threads are arranged on the outer side of the clamping plate (8), and the outer side of the clamping plate (8) is in threaded connection with the inner side of the sleeve (3).

4. The air compressor piston head structure convenient to replace of claim 1, characterized in that: the periphery of the piston head (16) is provided with an oil ring groove (12) and an air ring groove (13).

5. The air compressor piston head structure convenient to replace of claim 1, characterized in that: the number of the clamping blocks (7) is four, and the clamping blocks are annularly distributed on the peripheral side of the fixed shaft (11).

6. The air compressor piston head structure convenient to replace of claim 1, characterized in that: the cross sections of the clamping blocks (7) and the clamping grooves (14) are the same in shape.

7. The air compressor piston head structure convenient to replace of claim 1, characterized in that: the tail shaft (15) is arranged at the axial center of the piston head (16).

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