CN219013045U

CN219013045U - Novel cylinder structure

Info

Publication number: CN219013045U
Application number: CN202223010893.7U
Authority: CN
Inventors: 胡豪
Original assignee: Guangzhou Smart Industrial Automation Equipment Co ltd
Current assignee: Guangzhou Smart Industrial Automation Equipment Co ltd
Priority date: 2022-11-13
Filing date: 2022-11-13
Publication date: 2023-05-12
Anticipated expiration: 2032-11-13

Abstract

The utility model discloses a novel cylinder structure, which comprises a cylinder barrel, wherein a front end cover and a rear end cover are hermetically arranged at two ends of the cylinder barrel, a piston rod is hermetically sleeved on the front end cover in a sliding manner, a piston assembly is arranged on the piston rod, and the piston assembly is slidably arranged in the cylinder barrel and is in sealing abutting joint with the inner wall of the cylinder barrel; the front end cover is in threaded connection with an ice scraping cylinder, the ice scraping cylinder comprises an ice scraping section, a screwing section and a threaded section which are distributed in sequence, an ice scraping sharp edge is formed at the end part of the ice scraping section, and the ice scraping sharp edge is axially arranged; the screw thread section is equipped with the external screw thread, the screw thread section with front end housing threaded connection, the piston rod activity cup joints in the ice-scraping tube. Compared with the prior art, the contact area of the ice scraping sharp edge and ice is smaller, the pressure of the ice scraping sharp edge on the ice is larger under the same driving force of the piston rod, the crushing effect on the ice is better, and the situation that the piston rod is blocked when retracted can be effectively avoided.

Description

Novel cylinder structure

Technical Field

The utility model relates to the technical field of air cylinders, in particular to a novel air cylinder structure.

Background

The cylinder is a cylindrical metal part for guiding the piston to perform linear reciprocating motion in the cylinder and is widely used for various mechanical devices; when the piston rod of the cylinder is exposed to the external environment and frosted and frozen in the application of the low-temperature cold area, when the piston rod is retracted into the cylinder, ice on one hand can cause clamping, and on the other hand, partial ice enters the cylinder, so that the phenomena of hardening and embrittlement of a sealing ring, freezing of lubricating oil and the like can be caused; as disclosed in chinese patent publication No. CN206346985U, a waterproof and dustproof ice-scraping cylinder special for sanitation vehicles is disclosed, which scrapes ice by using a protective cover arranged on a front end cover to avoid a piston rod from bringing ice into the cylinder; however, the existing cylinder has some defects that 1, the protective cover collides with ice on the piston rod through the end surface of the protective cover to realize ice scraping, but when more ice exists, the ice scraping effect of the protective cover is poor, and the phenomenon of jamming is easy to occur; 2. when the protective cover needs to be replaced due to serious abrasion, the actuating element connected with the end part of the piston rod needs to be removed, the protective cover can be removed, and the actuating element needs to be installed to the piston rod again after the protective cover is replaced, so that the protective cover is inconvenient to maintain.

Disclosure of Invention

In view of the above, the present utility model proposes a novel cylinder structure that can solve at least one of the above problems to some extent.

The technical scheme of the utility model is realized as follows:

the novel cylinder structure comprises a cylinder barrel, wherein a front end cover and a rear end cover are arranged at two ends of the cylinder barrel in a sealing manner, a piston rod is sleeved on the front end cover in a sliding manner in a sealing manner, a piston assembly is arranged on the piston rod, and the piston assembly is slidably arranged in the cylinder barrel and is in sealing abutting connection with the inner wall of the cylinder barrel; the front end cover is in threaded connection with an ice scraping cylinder, the ice scraping cylinder comprises an ice scraping section, a screwing section and a threaded section which are distributed in sequence, an ice scraping sharp edge is formed at the end part of the ice scraping section, and the ice scraping sharp edge is axially arranged; the screw thread section is equipped with the external screw thread, the screw thread section with front end housing threaded connection, the piston rod activity cup joints in the ice-scraping tube.

Further, the screwing section is in a hexagonal cylinder shape.

Further, the clearance between the piston rod and the ice scraping cylinder is 0.15-0.75mm.

Further, reinforcing ribs which are equidistantly arranged along the circumferential direction are arranged on the peripheral wall of the ice scraping section.

Further, a Y-shaped sealing ring is arranged between the front end cover and the piston rod.

Further, a first annular baffle and a second annular baffle are arranged in the cylinder barrel, a first sealing gasket is clamped between the front end cover and the first annular baffle, and a second sealing gasket is clamped between the rear end cover and the second annular baffle; the cylinder periphery side is provided with a plurality of pull rods, the both ends of pull rod respectively with front end housing and rear end housing are connected, in order to realize making front end housing and rear end housing draw close each other.

Further, air tap mounting holes are respectively formed in the front end cover and the rear end cover.

Further, the ice scraping cylinder is composed of two half cylinder bodies, and the two half cylinder bodies are clamped and fixed through a clamping component.

Further, an annular clamping groove concavely arranged along the circumferential direction is formed in the ice scraping cylinder, the tightening member is a clamping spring, and the clamping spring is clamped in the annular clamping groove.

Further, the annular clamping grooves are formed in a plurality, the annular clamping grooves are axially distributed in the screwing section, and the number of the clamping springs corresponds to that of the annular clamping grooves.

The utility model has the beneficial effects that: the ice on the piston rod is scraped by the ice scraping cylinder, and when the piston rod is retracted, the ice scraping sharp edge on the ice scraping cylinder can scrape the ice on the outer surface of the piston rod, so that the ice falls off; compared with the prior art, the contact area of the ice scraping sharp edge and ice is smaller, the pressure of the ice scraping sharp edge on the ice is larger under the same driving force of the piston rod, the crushing effect on the ice is better, the ice is scraped off from the piston rod more easily, and the situation that the piston rod is blocked when retracted can be effectively avoided.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the internal structure of a novel cylinder structure according to the present utility model;

fig. 2 is a schematic structural view of the ice-shaving cartridge of embodiment 1;

FIG. 3 is a schematic view of a cross section of the ice-scraping blade of example 1;

FIG. 4 is an enlarged view of A in FIG. 1;

fig. 5 is a schematic structural view of an ice-scraping tube of embodiment 2;

fig. 6 is an exploded view of the ice-shaving cartridge of example 2.

Wherein: 1. a cylinder; 11. a first annular baffle; 12. a second annular baffle; 2. a front end cover; 21. a Y-shaped sealing ring; 3. a piston rod; 31. a piston assembly; 4. an ice scraping cylinder; 4a, a semi-cylinder body; 41. an ice scraping section; 411. an ice scraping sharp edge; 412. reinforcing ribs; 42. a screwing section; 43. a threaded section; 44. an annular clamping groove; 45. clamping springs; 5. a first sealing gasket; 6. a second sealing gasket; 7. a pull rod; 8. an air tap mounting hole; 9. and a rear end cover.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements 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 utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the mechanical connection can be realized, and the electric welding connection can be realized; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

Referring to fig. 1-4, a novel cylinder structure is shown, which comprises a cylinder barrel 1, wherein a front end cover 2 and a rear end cover 9 are arranged at two ends of the cylinder barrel 1 in a sealing manner, a piston rod 3 is sleeved on the front end cover 2 in a sliding manner in a sealing manner, a piston assembly 31 is arranged on the piston rod 3, and the piston assembly 31 is slidably arranged in the cylinder barrel 1 and is in sealing abutting connection with the inner wall of the cylinder barrel 1; the front end cover 2 is in threaded connection with an ice scraping cylinder 4, the ice scraping cylinder 4 comprises an ice scraping section 41, a screwing section 42 and a threaded section 43 which are distributed in sequence, an ice scraping sharp edge 411 is formed at the end part of the ice scraping section 41, and the ice scraping sharp edge 411 is axially arranged; the threaded section 43 is provided with external threads, the threaded section 43 is in threaded connection with the front end cover 2, and the piston rod 3 is movably sleeved in the ice scraping cylinder 4. When the piston rod 3 is retracted, the ice scraping sharp edge 411 on the ice scraping cylinder 4 can scrape the ice on the outer surface of the piston rod 3, so that the ice falls off; compared with the prior art, the contact area of the ice scraping sharp edge 411 and ice is smaller, the pressure of the ice scraping sharp edge 411 on the ice is larger under the same driving force of the piston rod 3, the crushing effect on the ice is better, the ice is scraped off from the piston rod 3 more easily, and the situation that the piston rod 3 is blocked when retracted can be effectively avoided.

In the above scheme, referring specifically to fig. 1, when the piston rod 3 performs a piston motion, in order to ensure a sealing connection between the piston rod 3 and the front end cover 2, a Y-shaped sealing ring 21 is disposed between the front end cover 2 and the piston rod 3. The cross section of the Y-shaped sealing ring 21 is Y-shaped, and in the working environment of reciprocating motion, the service life of the Y-shaped sealing ring is longer than that of the O-shaped sealing ring, so that the stability of the piston rod 3 during sliding can be improved. In order to ensure the sealing connection between the cylinder tube 1 and the front end cover 2 and the rear end cover 9, referring to fig. 1 and 4, a first annular baffle 11 and a second annular baffle 12 are provided in the cylinder tube 1, a first sealing gasket 5 is sandwiched between the front end cover 2 and the first annular baffle 11, and a second sealing gasket 6 is sandwiched between the rear end cover 9 and the second annular baffle 12; the cylinder barrel 1 is provided with a plurality of pull rods 7 on the periphery, and two ends of each pull rod 7 are respectively connected with the front end cover 2 and the rear end cover 9 so as to enable the front end cover 2 and the rear end cover 9 to be close to each other. The pull rod 7 is screwed with a nut (not shown), and pushes the front end cover 2/the rear end cover 9 with the nut, so that the front end cover 2 and the rear end cover 9 are pulled together, and are stably fixed at two ends of the cylinder 1. Conventionally, in order to facilitate ventilation into the cylinder barrel 1, referring to fig. 1, air tap mounting holes 8 are respectively provided on the front end cover 2 and the rear end cover 9, and the piston assembly 31 moves between the two air tap mounting holes 8.

In the above scheme, referring to fig. 2 and 3, in this embodiment, the screwing section 42 is in a hexagonal cylinder shape, so that the screwing section 42 is convenient to screw, so that the whole ice-scraping cylinder 4 is rotated, and the ice-scraping cylinder 4 is convenient to mount and dismount on the front end cover 2.

Further preferably, in this embodiment, the gap between the piston rod 3 and the ice-scraping cylinder 4 is 0.15-0.75mm. This allows the ice on the piston rod 3 to be scraped off substantially without the ice-scraping drum 4 affecting the smoothness of the piston movement of the piston rod 3.

In detail, referring to fig. 2 and 3, the outer peripheral wall of the ice scraping section 41 is provided with reinforcing ribs 412 which are equidistantly arranged along the circumferential direction. The structural stability of the ice scraping section 41 is reinforced by the reinforcing ribs 412, and the ice scraping section 41 is prevented from being easily deformed during impact with ice.

Example two

In the second embodiment, the structure of the ice-scraping cylinder 4 is optimized based on the first embodiment, and referring to fig. 1, 5 and 6, the ice-scraping cylinder 4 is formed by two half cylinders 4a, and the two half cylinders 4a are fastened and fixed by a fastening member; in short, the two half-cylinder bodies 4a are combined and shaped into the finished ice scraping cylinder 4 through the tightening members, and in actual application, even if an actuating element (not shown) is connected to the end part of the piston rod 3, the actuating element cannot pass through a hole in the ice scraping cylinder 4, and the ice scraping cylinder 4 can be assembled and disassembled without disassembling the actuating element; when the ice scraping cylinder 4 needs to be installed, the two half cylinder bodies 4a can be folded and sleeved on the piston rod 3, then the two half cylinder bodies are fixed by the tightening member, and then the ice scraping cylinder 4 is screwed, so that the ice scraping cylinder 4 is in threaded connection with the front end cover 2; when the ice scraping cylinder 4 needs to be disassembled, the principle is the same, the ice scraping cylinder 4 is screwed out from the front end cover 2, the hooping member is disassembled, and finally the two half cylinder bodies 4a are separated, so that the disassembly from the piston rod 3 can be completed.

Specifically, referring to fig. 5 and 6, the ice-scraping cylinder 4 is provided with an annular clamping groove 44 concavely arranged along the circumferential direction, the tightening member is a clamping spring 45, and the clamping spring 45 is clamped in the annular clamping groove 44. The clamp spring 45 is convenient to assemble and disassemble, and the clamp spring 45 is utilized to preliminarily fix the two half cylinder bodies 4a, so that the two half cylinder bodies 4a are kept relatively fixed in the axial direction and the radial direction, and the ice scraping cylinder 4 is kept stable in structure in the screwing process; and after the ice scraping cylinder 4 is screwed into the front end cover 2, the front end cover 2 and the clamp spring 45 jointly maintain the structural stability of the ice scraping cylinder 4, so that the ice scraping cylinder 4 cannot be dispersed under the impact of ice.

Preferably, a plurality of annular clamping grooves 44 may be provided on the screwing section 42, and a plurality of clamping springs 45 are used to fix the two half-cylinders 4a, so that the two half-cylinders 4a are more stable after being combined.

In this embodiment, the assembly and disassembly of the ice-scraping cylinder 4 can be completed without disassembling the executing element on the piston rod 3, so that the maintenance is more convenient.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The novel cylinder structure comprises a cylinder barrel, wherein a front end cover and a rear end cover are arranged at two ends of the cylinder barrel in a sealing manner, a piston rod is sleeved on the front end cover in a sliding manner in a sealing manner, a piston assembly is arranged on the piston rod, and the piston assembly is slidably arranged in the cylinder barrel and is in sealing abutting connection with the inner wall of the cylinder barrel; the ice scraping device is characterized in that an ice scraping barrel is connected to the front end cover in a threaded manner, the ice scraping barrel comprises an ice scraping section, a screwing section and a threaded section which are sequentially distributed, an ice scraping sharp edge is formed at the end part of the ice scraping section, and the ice scraping sharp edge is axially arranged; the screw thread section is equipped with the external screw thread, the screw thread section with front end housing threaded connection, the piston rod activity cup joints in the ice-scraping tube.

2. The novel cylinder structure of claim 1, wherein the screwing section is in a hexagonal cylinder shape.

3. The novel cylinder structure of claim 1, wherein a gap between the piston rod and the ice-scraping cylinder is 0.15-0.75mm.

4. The novel cylinder structure according to claim 1, wherein the outer peripheral wall of the ice scraping section is provided with reinforcing ribs which are equidistantly arranged along the circumferential direction.

5. The novel cylinder structure of claim 1, wherein a Y-shaped sealing ring is provided between the front end cover and the piston rod.

6. The novel cylinder structure according to claim 1, wherein a first annular baffle plate and a second annular baffle plate are arranged in the cylinder barrel, a first sealing gasket is clamped between the front end cover and the first annular baffle plate, and a second sealing gasket is clamped between the rear end cover and the second annular baffle plate; the cylinder periphery side is provided with a plurality of pull rods, the both ends of pull rod respectively with front end housing and rear end housing are connected, in order to realize making front end housing and rear end housing draw close each other.

7. The novel cylinder structure of claim 6, wherein the front end cover and the rear end cover are respectively provided with an air tap mounting hole.

8. The novel cylinder structure according to any one of claims 1 to 7, wherein the ice-scraping cylinder is composed of two half cylinders, and the two half cylinders are fastened and fixed by a fastening member.

9. The novel cylinder structure according to claim 8, wherein the ice scraping cylinder is provided with an annular clamping groove concavely arranged along the circumferential direction, the tightening member is a clamping spring, and the clamping spring is clamped in the annular clamping groove.

10. The novel cylinder structure according to claim 9, wherein a plurality of annular clamping grooves are formed, the plurality of annular clamping grooves are axially distributed in the screwing section, and the number of the clamping springs corresponds to the number of the annular clamping grooves.