CN221857168U - A protective device for nitrogen cylinder - Google Patents

Abstract

The utility model discloses a protective device for a nitrogen cylinder, comprising a sleeve sleeved outside the nitrogen cylinder, the inner cylinder wall of the sleeve being connected with the outer cylinder wall of the nitrogen cylinder by a clearance fit; a cover plate is provided at the end of the sleeve, the edge of the cover plate is connected with the end of the sleeve, and the plate surface of the cover plate is connected with the end of the plunger rod of the nitrogen cylinder; a dustproof cavity is formed between the inner wall of the sleeve, the plate surface of the cover plate, the outer wall of the plunger rod of the nitrogen cylinder and the end of the cylinder body close to the cover plate. The utility model can prevent the nitrogen cylinder from being subjected to unnecessary wear and pitting, prevent dust from entering the nitrogen cylinder, and increase the service life of the nitrogen cylinder.

Description

A protective device for nitrogen cylinder

Technical Field

The utility model belongs to the technical field of molds and relates to a protective device for a nitrogen cylinder.

Background Art

The nitrogen cylinder is also called the nitrogen spring. The nitrogen cylinder is a component with elastic function. The cylinder body of the nitrogen cylinder is sealed with high-pressure nitrogen. The external force compresses the nitrogen through the plunger rod. When the external force disappears, the high-pressure nitrogen expands in the cylinder body, thereby obtaining a certain elastic force.

With the development of automobile molds, the ejector device is very important after stamping is completed. The ejector device can ensure the smooth removal of parts and prevent damage during the removal of parts. However, the ejector device is mostly a nitrogen cylinder. Due to the lack of dust protection device, the nitrogen cylinder will have certain wear and pitting, which greatly reduces the service life of the nitrogen cylinder.

Utility Model Content

The utility model aims to overcome the deficiencies in the prior art and provide a protective device for a nitrogen cylinder, which can prevent the nitrogen cylinder from being subjected to unnecessary wear and pitting, prevent dust from entering the nitrogen cylinder, and increase the service life of the nitrogen cylinder.

In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

A protective device for a nitrogen cylinder comprises a sleeve sleeved outside the nitrogen cylinder, wherein the inner cylinder wall of the sleeve is connected with the outer cylinder wall of the nitrogen cylinder by gap fit; a cover plate is provided at the end of the sleeve, the edge of the cover plate is connected with the end of the sleeve, and the plate surface of the cover plate is connected with the end of the plunger rod of the nitrogen cylinder; a dustproof cavity is formed between the inner wall of the sleeve, the plate surface of the cover plate, the outer wall of the plunger rod of the nitrogen cylinder and the end of the cylinder body close to the cover plate.

Optionally, the cover plate is connected to the end of the plunger rod of the nitrogen cylinder via screws.

Optionally, a screw hole is provided at the end of the plunger rod of the nitrogen cylinder, and the screw passes through the cover plate and is threadedly connected to the screw hole.

Optionally, the cover plate is provided with a through hole for screws to pass through.

Optionally, the screw is a countersunk screw.

Optionally, the cover plate is provided with countersunk holes for accommodating countersunk screws.

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

The utility model provides a protective device for a nitrogen cylinder. A sleeve and a cover plate are sleeved on a plunger rod of the nitrogen cylinder, so that a dustproof cavity is formed between the inner wall of the sleeve, the plate surface of the cover plate, the outer wall of the plunger rod of the nitrogen cylinder and the end of a cylinder body close to the cover plate, thereby preventing the nitrogen cylinder from being subjected to unnecessary wear and pitting, preventing dust from entering the nitrogen cylinder, and improving the service life of the nitrogen cylinder.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a protective device for a nitrogen cylinder according to an embodiment of the utility model.

In the figure: 1. cylinder body; 2. plunger rod; 3. sleeve; 4. cover plate; 5. dustproof cavity; 6. countersunk screw; 7. screw hole; 8. countersunk hole; 9. through hole.

Implementation

The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Example

As shown in FIG1 , a protective device for a nitrogen cylinder comprises a sleeve 3 sleeved outside the nitrogen cylinder, wherein the inner wall of the sleeve 3 is connected with the outer wall of the cylinder body 1 of the nitrogen cylinder by clearance fit along the axial direction of the plunger rod 2 of the nitrogen cylinder, and the clearance value between the inner wall of the sleeve 3 and the outer wall of the cylinder body 1 is 2 mm; a cover plate 4 is provided at the end of the sleeve 3, the edge of the cover plate 4 is connected with the end of the sleeve 3, and the plate surface of the cover plate 4 is connected with the end of the plunger rod 2 of the nitrogen cylinder; a dustproof cavity 5 is formed between the inner wall of the sleeve 3, the plate surface of the cover plate 4, the outer wall of the plunger rod 2 of the nitrogen cylinder and the end of the cylinder body 1 close to the cover plate 4.

Example

As shown in Figure 1, on the basis of the first embodiment, the cover plate 4 of this embodiment is connected to the end of the plunger rod 2 of the nitrogen cylinder through a countersunk screw 6; the end of the plunger rod 2 of the nitrogen cylinder is provided with a screw hole 7, the cover plate 4 is provided with a through hole 9 for the countersunk screw 6 to pass through, the cover plate 4 is provided with a countersunk hole 8 for placing the countersunk screw 6, and the countersunk screw 6 passes through the through hole 9 of the cover plate 4 and is threadedly connected with the screw hole 7.

The working principle of this embodiment is as follows: during the installation process, firstly, the countersunk screw 6 is passed through the through hole 9 and threadedly connected with the screw hole 7; during the operation process, the plunger rod 2 of the nitrogen cylinder performs reciprocating telescopic motion in the cylinder body 1, and the inner wall of the sleeve 3 and the outer wall of the cylinder body 1 of the nitrogen cylinder are connected with clearance fit along the axial direction of the plunger rod 2 of the nitrogen cylinder; a dustproof cavity 5 is formed between the inner wall of the sleeve 3, the plate surface of the cover plate 4, the outer wall of the plunger rod 2 of the nitrogen cylinder and the end of the cylinder body 1 close to the cover plate 4.

The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (6)

1. A protection device of nitrogen gas jar, its characterized in that: the device comprises a sleeve sleeved outside the nitrogen cylinder, wherein the inner cylinder wall of the sleeve is in clearance fit connection with the outer wall of the cylinder body of the nitrogen cylinder; the end part of the sleeve is provided with a cover plate, the edge of the cover plate is connected with the end part of the sleeve, and the plate surface of the cover plate is connected with the end part of a plunger rod of the nitrogen cylinder; and a dustproof cavity is formed among the inner wall of the sleeve, the plate surface of the cover plate, the outer wall of the plunger rod of the nitrogen cylinder and the end part of the cylinder body, which is close to the cover plate.

2. The nitrogen cylinder protection device according to claim 1, wherein: the cover plate is connected with the end head of the plunger rod of the nitrogen cylinder through screws.

3. The nitrogen cylinder protection device according to claim 2, wherein: the end head of the plunger rod of the nitrogen cylinder is provided with a screw hole, and the screw penetrates through the cover plate and is in threaded connection with the screw hole.

4. The nitrogen cylinder protection device according to claim 2, wherein: and the cover plate is provided with a through hole for the screw to penetrate.

5. The nitrogen cylinder protection device according to claim 2, wherein: the screw is a countersunk screw.

6. The nitrogen cylinder protection device according to claim 1, wherein: the cover plate is provided with a countersunk hole for placing the countersunk screw.