CN217271627U - Nitrogen spring with overload protection function - Google Patents

Abstract

The utility model discloses a nitrogen spring with overload protection function, which comprises a cylinder body, wherein the bottom end in the cylinder body is fixedly connected with a bottom plate, the upper surface of the bottom plate is fixedly connected with a compression spring, the upper end of the compression spring is fixedly connected with a top plate, the edge between the top plate and the bottom plate is fixedly connected with a telescopic rod, the number of the telescopic rods is four, the bottom end of the outer surface of the telescopic rod is fixedly connected with a fixed seat, the nitrogen spring with overload protection function is characterized in that through the arrangement of the cylinder body, the bottom plate, the compression spring, the top plate, the telescopic rod and the fixed seat, when an accidental overload condition occurs, a piston block can firstly contact with the top plate, the piston block downwards applies pressure to compress the compression spring, the compression spring can offset the pressure brought by the piston block when compressed, thereby protecting the internal components of the nitrogen spring, the conditions such as component damage and the like are prevented when the pressure is overloaded, and the use safety is greatly improved.

Description

Nitrogen spring with overload protection function

Technical Field

The utility model relates to a nitrogen gas spring technical field, in particular to nitrogen gas spring with overload protection function.

Background

In the mold industry, elastic elements are used in large quantities all the time, over the years, the mold technology and the mold manufacturing level are greatly developed and improved, the demand of industrial products on molds is getting larger and larger, the molds are rapidly developed towards the directions of precision, complexity, high efficiency and long service life, but the original conventional elastic elements have certain defects and cannot meet the requirements of the situation, the requirement of a stamping process cannot be ideally solved, therefore, people strive to develop a novel elastic functional part to replace the conventional elastic element, the novel elastic element has more perfect performance, can replace the conventional elastic element, the performance which is difficult to complete by the conventional elastic element is completed, and a nitrogen spring is produced as a novel weak functional part.

However, when the nitrogen spring works, if the pressure applied to the nitrogen spring by the mold exceeds the bearing pressure of the nitrogen spring, the piston rod is likely to slide down instantly to damage the internal structure of the nitrogen spring, and the use safety is low.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a nitrogen gas spring with overload protection function can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a nitrogen spring with overload protection function, includes the cylinder body, the inside bottom fixedly connected with bottom plate of cylinder body, the last fixed surface of bottom plate is connected with compression spring, compression spring's upper end fixedly connected with roof, edge fixedly connected with telescopic link between roof and the bottom plate, the quantity of telescopic link is four, the bottom fixedly connected with fixing base of telescopic link surface.

In order to reach sealed and the purpose of location, conduct the utility model relates to a nitrogen gas spring with overload protection function, the upper end fixedly connected with holding ring of cylinder body inner wall, the inside fixedly connected with sealing washer of holding ring.

In order to reach the purpose of protection piston post, conduct the utility model relates to a nitrogen gas spring with overload protection function, the last fixed surface of sealing washer is connected with the guide ring, the last fixed surface of guide ring is connected with the dust ring.

In order to reach the purpose that the piston piece can be the motion in the cylinder body, conduct the utility model relates to a nitrogen gas spring with overload protection function, the inside of holding ring is provided with the piston post, the bottom fixedly connected with piston piece of piston post.

In order to protect the purpose of piston block, as the utility model relates to a nitrogen spring with overload protection function, the fixed surface of piston block is connected with the abrasionproof ring.

In order to reach the purpose of aerifing and gassing, as the utility model relates to a nitrogen spring with overload protection function, the hole of aerifing has been seted up to the bottom of cylinder body, the inside fixedly connected with pneumatic valve of inflating the hole.

In order to reach sealed purpose, as the utility model relates to a nitrogen gas spring with overload protection function, the inside one side threaded connection who is close to the pneumatic valve in the hole of aerifing has the bolt, the surface of bolt is provided with sealed the pad.

In order to reach the purpose of how safe operation the device of suggestion, conduct the utility model relates to a nitrogen gas spring with overload protection function, the fixed surface of cylinder body is connected with the suggestion card.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. this nitrogen gas spring with overload protection function, through the cylinder body, the bottom plate, compression spring, the roof, the setting of telescopic link and fixing base, when the emergence accident overload condition, the piston piece can at first contact with the roof, the piston piece is to exerting pressure downwards, make compression spring compress, compression spring can offset the pressure that the piston piece brought when compressing, protect nitrogen gas spring's internals with this, the condition such as component damage takes place when preventing pressure overload, the security of use improves greatly.

2. This nitrogen gas spring with overload protection function, through the holding ring, the sealing washer, the guide ring, the dust ring, the piston post, the setting of piston piece and abrasionproof ring, the sealing washer can be so that the cylinder body is inside to keep sealed, prevent gas leakage, the guide ring can prevent that the piston post from taking place direct contact and friction with the cylinder body in the motion process, play protection cylinder body and piston post not impaired effect, the dust ring prevents that dust etc. from getting into inside the cylinder body, through aerifing the hole, the pneumatic valve, the setting of bolt and sealed pad, the device aerifys or deflates through the pneumatic valve, the bolt can protect the pneumatic valve, prevent pneumatic valve gas leakage etc..

Drawings

Fig. 1 is a schematic axial view of a nitrogen spring with overload protection function according to embodiment 1 of the present invention;

fig. 2 is a schematic cross-sectional structural view of a nitrogen gas spring with an overload protection function according to embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a compression spring of a nitrogen gas spring with an overload protection function according to embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of a piston column of a nitrogen gas spring with an overload protection function according to embodiment 1 of the present invention;

fig. 5 is a schematic view of the prompt card according to embodiment 2 of the present invention.

In the figure: 1. a cylinder body; 2. a base plate; 3. a compression spring; 4. a top plate; 5. a telescopic rod; 6. a fixed seat; 7. a positioning ring; 8. a seal ring; 9. a guide ring; 10. a dust ring; 11. a piston post; 12. a piston block; 13. an anti-abrasion ring; 14. an inflation hole; 15. an air valve; 16. a bolt; 17. a gasket; 18. and (5) prompting the card.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-4, a nitrogen spring with overload protection function, including cylinder body 1, the inside bottom fixedly connected with bottom plate 2 of cylinder body 1, the last fixed surface of bottom plate 2 is connected with compression spring 3, compression spring 3's upper end fixedly connected with roof 4, the edge fixedly connected with telescopic link 5 between roof 4 and the bottom plate 2, the quantity of telescopic link 5 is four, the bottom fixedly connected with fixing base 6 of telescopic link 5 surface.

During the concrete use, through cylinder body 1, bottom plate 2, compression spring 3, roof 4, the setting of telescopic link 5 and fixing base 6, when the accident overload condition takes place, piston block 12 can at first contact with roof 4, piston block 12 applys pressure downwards, make compression spring 3 compress, compression spring 3 can offset the pressure that piston block 12 brought when the compression, with this inner member who protects nitrogen spring, the condition such as component damage takes place when preventing pressure overload, the security of use improves greatly.

In this embodiment, a positioning ring 7 is fixedly connected to the upper end of the inner wall of the cylinder body 1, and a sealing ring 8 is fixedly connected to the inside of the positioning ring 7.

During the specific use, through the setting of sealing washer 8, the condition of gas leakage can prevent to appear in the device motion process in sealing washer 8.

In this embodiment, a guide ring 9 is fixedly connected to the upper surface of the seal ring 8, and a dust seal ring 10 is fixedly connected to the upper surface of the guide ring 9.

During the specific use, through the setting of guide ring 9 and dust ring 10, guide ring 9 can prevent that piston post 11 from taking place direct contact and friction with cylinder body 1 in the motion process, plays the effect that protects cylinder body 1 and piston post 11 not impaired.

In this embodiment, a piston post 11 is disposed inside the positioning ring 7, and a piston block 12 is fixedly connected to a bottom end of the piston post 11.

When the piston type cylinder is used specifically, the piston column 11 and the piston block 12 are arranged, and when the piston type cylinder works, the piston column 11 drives the piston block 12 to move in the cylinder body 1.

In this embodiment, an anti-wear ring 13 is fixedly connected to the outer surface of the piston block 12.

When the piston block is used specifically, the anti-abrasion ring 13 can prevent the piston block 12 from being damaged by friction inside the cylinder body 1 due to the arrangement of the anti-abrasion ring 13.

In this embodiment, the bottom of the cylinder body 1 is provided with an inflation hole 14, and an air valve 15 is fixedly connected inside the inflation hole 14.

When the device is used specifically, through the arrangement of the inflation hole 14 and the air valve 15, the device is inflated or deflated through the air valve 15.

In this embodiment, a bolt 16 is threadedly coupled to a side of the inside of the air charging hole 14 adjacent to the air valve 15, and a packing 17 is provided on an outer surface of the bolt 16.

When the air valve is used specifically, the bolt 16 can protect the air valve 15 through the arrangement of the bolt 16 and the sealing gasket 17, and the sealing gasket 17 prevents air leakage of the air valve 15.

The working principle is as follows: through the arrangement of the cylinder body 1, the bottom plate 2, the compression spring 3, the top plate 4, the telescopic rod 5 and the fixed seat 6, when an accidental overload condition occurs, the piston block 12 can be firstly contacted with the top plate 4, the piston block 12 applies downward pressure to compress the compression spring 3, the compression spring 3 can counteract the pressure brought by the piston block 12 when being compressed, so as to protect internal components of the nitrogen spring, prevent the components from being damaged and the like when the pressure is overloaded, the use safety is greatly improved, through the arrangement of the positioning ring 7, the sealing ring 8, the guide ring 9, the dust ring 10, the piston column 11, the piston block 12 and the anti-abrasion ring 13, the sealing ring 8 can keep the inside of the cylinder body 1 sealed and prevent air leakage, the guide ring 9 can prevent the piston column 11 from being in direct contact and friction with the cylinder body 1 in the movement process, and plays a role of protecting the cylinder body 1 and the piston column 11 from being damaged, the dust ring 10 prevents dust and the like from entering the inside of the cylinder body 1, and the device is inflated or deflated through the air valve 15 through the arrangement of the inflation hole 14, the air valve 15, the bolt 16 and the sealing gasket 17, and the bolt 16 can protect the air valve 15 and prevent the air leakage and the like of the air valve 15.

Example 2

As shown in fig. 5, the distinguishing features of this embodiment that distinguish embodiment 1 are: the outer surface of the cylinder body 1 is fixedly connected with a prompt card 18.

When the pressure-sensitive alarm device is used specifically, the prompt card 18 can prompt information such as pressure intensity which can be borne by the device through the arrangement of the prompt card 18.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a nitrogen gas spring with overload protection function, includes cylinder body (1), its characterized in that: the bottom fixedly connected with bottom plate (2) of cylinder body (1) inside, the last fixed surface of bottom plate (2) is connected with compression spring (3), the upper end fixedly connected with roof (4) of compression spring (3), edge fixedly connected with telescopic link (5) between roof (4) and bottom plate (2), the quantity of telescopic link (5) is four, the bottom fixedly connected with fixing base (6) of telescopic link (5) surface.

2. A nitrogen gas spring with overload protection function according to claim 1, characterized in that: the upper end fixedly connected with holding ring (7) of cylinder body (1) inner wall, the inside fixedly connected with sealing washer (8) of holding ring (7).

3. A nitrogen gas spring with overload protection function according to claim 2, characterized in that: the upper surface fixed connection of sealing washer (8) has guide ring (9), the upper surface fixed connection of guide ring (9) has dust ring (10).

4. A nitrogen gas spring with overload protection function according to claim 2, characterized in that: the inside of holding ring (7) is provided with piston post (11), the bottom fixedly connected with piston block (12) of piston post (11).

5. The nitrogen gas spring with overload protection function as claimed in claim 4, wherein: the outer surface of the piston block (12) is fixedly connected with an anti-abrasion ring (13).

6. The nitrogen gas spring with overload protection function as claimed in claim 1, wherein: an inflation hole (14) is formed in the bottom of the cylinder body (1), and an air valve (15) is fixedly connected inside the inflation hole (14).

7. The nitrogen gas spring with overload protection function as claimed in claim 6, wherein: and a bolt (16) is connected to one side, close to the air valve (15), of the interior of the inflation hole (14) in a threaded manner, and a sealing gasket (17) is arranged on the outer surface of the bolt (16).

8. A nitrogen gas spring with overload protection function according to claim 1, characterized in that: the outer surface of the cylinder body (1) is fixedly connected with a prompt card (18).

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