CN210344138U

CN210344138U - Buffer with novel structure

Info

Publication number: CN210344138U
Application number: CN201921240457.4U
Authority: CN
Inventors: 舒微熹; 杨松
Original assignee: Yunnan Shenghua Elevator Co ltd
Current assignee: Yunnan Shenghua Elevator Co ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-04-17
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a novel buffer of structure, including the pneumatic cylinder body, the inside plastics inner tube that has inserted in pneumatic cylinder body below, install the spring in the plastics inner tube, the oil extraction hole has been seted up to plastics inner tube inner wall equidistance, the quantity of oil extraction hole is the multiunit, the piston is installed at the spring top, the ejector pin is installed at the piston top, and the ejector pin runs through and arranges pneumatic cylinder body top in pneumatic cylinder body top. The utility model discloses a plastics inner tube that plastics material integration injection moulding made makes its processing technology simple, and the maintenance cost is low, and plastics inner tube inner wall is direct and the piston cooperation, plastics inner tube outer wall with the cooperation of pneumatic cylinder body can, the oil extraction function is accomplished with the all accessible oil drain holes of oil return function simultaneously, has avoided the complex construction of current inner tube, through this internal equipment work of can accomplishing of plastics inner tube disect insertion pneumatic cylinder, the maintenance work in the later stage of being convenient for, the change mode is simple convenient.

Description

Buffer with novel structure

Technical Field

The utility model relates to a buffer technical field specifically is a buffer of novel structure.

Background

At present, one end of a hydraulic buffer is arranged on a fixed base, the other end of the hydraulic buffer is a telescopic movable ejector rod, the hydraulic buffer plays a role of increasing a buffering force, and the action process is as follows: when a movable object impacts the hydraulic ejector rod, the ejector rod compresses hydraulic oil arranged in the hydraulic cylinder under the action of an acting force, the compressed hydraulic oil is slowly discharged at a constant speed through the oil discharge hole, the ejector rod slowly descends due to the gradual reduction of the volume of the hydraulic oil in the inner pipe, and finally the effect of buffering torque is achieved, but the existing buffer has some defects, such as the defects; the existing buffer inner tube has a complex structure and a complex processing technology, so that the manufacturing cost is high, the maintenance is inconvenient and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a buffer of novel structure has solved the problem that proposes among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a buffer of novel structure, includes the pneumatic cylinder body, the inside plastics inner tube that has inserted in pneumatic cylinder body below, install the spring in the plastics inner tube, the oil extraction hole has been seted up to plastics inner tube inner wall equidistance, the quantity of oil extraction hole is the multiunit, the piston is installed at the spring top, the ejector pin is installed at the piston top, and the ejector pin runs through and arranges pneumatic cylinder body top in the pneumatic cylinder body top, plastics inner tube and oil extraction hole integration injection moulding, the intraductal injection of plastics inner tube has hydraulic oil.

As an optimal implementation mode of the utility model, the oil filler point has vertically been seted up to pneumatic cylinder body bottom centre of a circle department, install the check valve in the oil filler point.

As an embodiment of the present invention, the top end inside the hydraulic cylinder body is located outside the push rod and is provided with an oil seal.

As a preferred embodiment of the utility model, the pressure storage sponge is installed below the oil seal and outside the ejector rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model relates to a novel buffer of structure, the plastics inner tube that makes through plastics material integration injection moulding makes its processing technology simple, the maintenance cost is low, and plastics inner tube inner wall direct and piston cooperation, plastics inner tube outer wall with the cooperation of pneumatic cylinder body can, the oil extraction function is accomplished with the all accessible oil drain hole of oil return function simultaneously, the complex structure of current inner tube has been avoided, this internal equipment work of can accomplishing of pneumatic cylinder through plastics inner tube disect insertion, the maintenance work in the later stage of being convenient for, it is simple convenient to change the mode.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic cross-sectional structure diagram of a buffer with a novel structure according to the present invention;

fig. 2 is a schematic view of the sectional structure of the plastic inner tube of the buffer with the novel structure of the present invention.

FIG. 3 is a top view of the plastic inner tube of the new structure of the present invention;

fig. 4 is a top view of a buffer with a novel structure according to the present invention.

In the figure: 1. a hydraulic cylinder body; 2. a plastic inner tube; 3. a spring; 4. a piston; 5. pressure-accumulating sponge; 6. oil sealing; 7. a top rod; 8. hydraulic oil; 9. a check valve; 10. an oil filler hole; 11. and an oil drain hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a buffer of novel structure, includes pneumatic cylinder body 1, the inside plastics inner tube 2 that has inserted in 1 below of pneumatic cylinder body, install spring 3 in the plastics inner tube 2, oil drain hole 11 has been seted up to 2 inner wall equidistance in plastics inner tube, the quantity of oil drain hole 11 is the multiunit, piston 4 is installed at 3 tops of spring, ejector pin 7 is installed at piston 4 top, and ejector pin 7 runs through and arranges pneumatic cylinder body 1 top in the 1 top of pneumatic cylinder body, plastics inner tube 2 and oil drain hole 11 integration injection moulding, it has hydraulic oil 8 to inject in the plastics inner tube 2.

In this embodiment (please refer to fig. 1, fig. 2 fig. 3 and fig. 4), the plastics inner tube 2 that makes through plastics material integration injection moulding makes its processing technology simple, the maintenance cost is low, and 2 inner walls of plastics inner tube are direct to cooperate with

piston

4, 2 outer walls of plastics inner tube with hydraulic cylinder body 1 cooperation can, the oil extraction function is accomplished with oil return function accessible oil drain hole 11 simultaneously, the complex structure of current inner tube has been avoided, can accomplish the equipment work in the hydraulic cylinder body 1 through 2 disect insertions of plastics inner tube, the maintenance work in the later stage of being convenient for, the change mode is simple and convenient.

An oil filling hole 10 is longitudinally formed in the center of the circle at the bottom of the hydraulic cylinder body 1, and a check valve 9 is installed in the oil filling hole 10.

In this embodiment (see fig. 1), the injection of the hydraulic oil 8 is facilitated through the oil hole 10.

Wherein, the inside top of hydraulic cylinder body 1 just is located the ejector pin 7 outside and installs oil blanket 6.

In this embodiment (see fig. 1), the oil seal 6 can prevent the hydraulic oil 8 from leaking out above the hydraulic cylinder body 1.

Wherein, pressure storage sponge 5 is arranged below the oil seal 6 and outside the mandril 7.

In this embodiment (see fig. 1), the pressure-accumulating sponge 5 can conveniently contain the hydraulic oil 8.

The utility model relates to a buffer with a novel structure, which comprises a hydraulic cylinder body 1; 2. a plastic inner tube; 3. a spring; 4. a piston; 5. pressure-accumulating sponge; 6. oil sealing; 7. a top rod; 8. hydraulic oil; 9. a check valve; 10. an oil filler hole; 11. the oil drain hole, the part is the universal standard component or the part known by the technicians in this field, its structure and principle are all known by the technical manual or by the routine experimental method, in operation, increase a plastic inner pipe 2 of plastic material integrated into one piece between the inner wall of the hydraulic cylinder body 1 and the piston 4, there are a certain number of oil drain holes 11 on the inner wall of the plastic inner pipe 2, compress the hydraulic oil 8 after the ejector pin 7 receives the pressure, the hydraulic oil 8 slowly returns at uniform speed through the oil drain hole 11 set on the inner wall pipe, the height of the ejector pin 7 slowly descends at uniform speed along with the reduction of the volume of the hydraulic oil 8 to play a role of buffering, and the device cancels the complex structure of the traditional inner pipe, the plastic inner pipe 2 made of plastic material can be directly inserted into the hydraulic cylinder body 1, and the plastic inner pipe 2 has simple processing technique and low maintenance cost, easy change, 2 inner walls of plastics inner tube are direct to cooperate with

piston

4, and 2 outer walls of plastics inner tube cooperate with pneumatic cylinder body 1, and the oil extraction function is accomplished with oil return function accessible oil drain hole 11.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a buffer of novel structure, includes pneumatic cylinder body (1), its characterized in that: pneumatic cylinder body (1) below is inside to be inserted there is plastics inner tube (2), install spring (3) in plastics inner tube (2), oil drain hole (11) have been seted up to plastics inner tube (2) inner wall equidistance, the quantity of oil drain hole (11) is the multiunit, piston (4) are installed at spring (3) top, ejector pin (7) are installed at piston (4) top, and ejector pin (7) run through and arrange pneumatic cylinder body (1) top in pneumatic cylinder body (1) top, plastics inner tube (2) and oil drain hole (11) integration injection moulding, it has hydraulic oil (8) to pour into in plastics inner tube (2).

2. The buffer of claim 1, wherein: an oil filling hole (10) is longitudinally formed in the circle center of the bottom of the hydraulic cylinder body (1), and a check valve (9) is installed in the oil filling hole (10).

3. The buffer of claim 1, wherein: the top end in the hydraulic cylinder body (1) is positioned on the outer side of the ejector rod (7) and is provided with an oil seal (6).

4. A buffer of a new structure according to claim 3, wherein: and a pressure storage sponge (5) is arranged below the oil seal (6) and on the outer side of the ejector rod (7).