Adjustable gate valve lead screw protective sleeve

By designing an adjustable gate valve screw protector, utilizing transparent soft PVC material and a pleated structure, the problem of corrosion and jamming caused by exposed gate valve screws is solved, enabling convenient operation and observation. It is suitable for various gate valve specifications and is cost-effective.

CN224064869UActive Publication Date: 2026-03-31CHINA NAT AVIATION FUEL YANTAI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing gate valve screws are exposed and prone to rust, freezing, and jamming. Furthermore, existing protection devices are costly or not durable, affecting valve operation and inspection.

Method used

An adjustable gate valve screw protective sleeve is designed. It is made of transparent soft PVC material. The sleeve is adjustable by combining a pleated structure, a tightening band and a fixing ring to ensure close contact with the screw, prevent corrosion and facilitate operation and observation.

Benefits of technology

It effectively prevents lead screw corrosion, facilitates operation and observation, is suitable for lead screws of various specifications of gate valves, is low in cost, and does not affect the use of valves.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable gate valve lead screw protective sleeve which comprises a protective sleeve body, wrinkles are arranged on the outer surface of the protective sleeve body, a set of fixing rings are arranged on the outer surface of the protective sleeve body in a sleeved mode, the two ends of the protective sleeve body are communicated with shrinkage sleeves, one end of each shrinkage sleeve is connected with a mounting ring, and the other end of each shrinkage sleeve is connected with a screw rod. Two through openings are formed in the outer surface of each mounting ring, and fixing balls are connected to the two ends of each tightening belt. According to the device, the protective sleeve body can be conveniently stretched and lengthened through the folds, the tightening belt is matched to be in contact with the inner side wall of the mounting ring, the mounting ring can be conveniently shrunk, the protective sleeve body can be in contact with the lead screw through the fixing ring, the situation that the lead screw rusts is avoided, operation is convenient, and practicability is high. The device does not affect the use of the valve and the observation of the screw rod, is adjustable, can be applied to gate valve screw rods of various specifications to the maximum extent, and is low in cost.
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Description

Technical Field

[0001] This application relates to the field of chemical technology, and in particular to an adjustable gate valve screw protection sleeve. Background Technology

[0002] Chemical industry is an abbreviation for "chemical process", "chemical industry", "chemical engineering", etc. All technologies that use chemical methods to change the composition and structure of substances or synthesize new substances belong to chemical production technology, also known as chemical process. The products obtained are called chemical products or chemical products.

[0003] Currently, gate valve screws are quite long, and a portion of the screw is often exposed without protection. Exposed screws are prone to corrosion, freezing, and jamming due to dew, rain, and snow. There are currently no dedicated gate valve screw protective sleeves on the market, nor are there any similar products that can function to protect gate valves.

[0004] 1. Integrated valve protective cover: High cost, not conducive to valve operation and inspection;

[0005] 2. Integrated valve protection cloth: Not durable and not conducive to valve operation and inspection. Utility Model Content

[0006] The purpose of this utility model is to provide an adjustable gate valve screw protection sleeve to solve the problems mentioned in the background art.

[0007] The embodiments of this application adopt the following technical solutions:

[0008] An adjustable gate valve screw protective sleeve includes a protective sleeve body, the outer surface of which is provided with pleats, a set of fixing rings fitted on the outer surface of which is provided, and shrink sleeves connected to both ends of the protective sleeve body. Each shrink sleeve is connected to one end of an installation ring, and each installation ring has two openings on its outer surface and a tightening band inside.

[0009] Preferably, each of the tightening straps has a fixed ball attached to both ends.

[0010] Preferably, both ends of each tightening band pass through the opening and extend to the outside of the mounting ring.

[0011] Preferably, the outer surface of each tightening band is in contact with the inner wall of the mounting ring.

[0012] Preferably, the protective sleeve is made of transparent soft PVC material.

[0013] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0014] This device uses pleats to easily stretch and extend the protective sleeve, and with the tightening strap contacting the inner wall of the mounting ring, it can easily shrink the mounting ring. In addition, with the use of the fixing ring, it can make contact between the protective sleeve and the lead screw, which can prevent the lead screw from rusting. It is easy to operate, does not affect the use of valves and the observation of the lead screw, and is adjustable, so it can be used to the greatest extent for various specifications of gate valve lead screws. In addition, it is inexpensive. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 Here is a three-dimensional structural diagram of the protective sleeve body in this utility model;

[0017] Figure 2 Here is a top sectional view of the mounting ring in this utility model;

[0018] Figure 3 See: A bottom view of the mounting ring in this utility model;

[0019] Figure 4 This utility model is: Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Protective sleeve body; 2. Pleats; 3. Fixing ring; 4. Shrink sleeve; 5. Mounting ring; 6. Tightening strap; 7. Opening; 8. Fixing ball. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] Please see Figure 1-4 This utility model provides a technical solution for an adjustable gate valve screw protective sleeve:

[0024] An adjustable gate valve screw protector includes a protector body 1, with pleats 2 on the outer surface of the protector body 1, a set of fixing rings 3 fitted on the outer surface of the protector body 1, and contraction sleeves 4 connected to both ends of the protector body 1. Each contraction sleeve 4 has an installation ring 5 connected to one end, and each installation ring 5 has two openings 7 on its outer surface. Each installation ring 5 has a tightening band 6 inside. Specifically, the pleats 2 allow the protector body 1 to be easily stretched and extended, and the tightening band 6, in conjunction with the inner wall of the installation ring 5, allows for easy contraction of the installation ring 5. In addition, the fixing rings 3 allow the protector body 1 to contact the screw, preventing the screw from rusting, facilitating operation, not affecting valve use or screw observation, and being adjustable, making it suitable for various specifications of gate valve screws.

[0025] In this embodiment, each tightening band 6 has a fixing ball 8 connected to both ends; both ends of each tightening band 6 pass through the opening 7 and extend to the outside of the mounting ring 5; specifically, the fixing ball 8 can prevent the tightening band 6 from separating from the mounting ring 5.

[0026] In this embodiment, the outer surface of each tightening band 6 is in contact with the inner wall of the mounting ring 5; the protective sleeve body 1 is made of transparent soft PVC material; specifically, it can improve the service life of the protective sleeve body 1.

[0027] Working principle: When using this adjustable gate valve screw protector, the user first places the protector body 1 onto the outer surface of the screw. Depending on the length of the screw and the use of the pleats 2, the protector body 1 can be stretched. Simultaneously, pulling the tightening strap 6 allows the mounting ring 5 and the shrink sleeve 4 to contact the screw. Then, the tightening strap 6 is tightened and bundled. At the same time, the fixing ring 3 secures the protector body 1 to the screw. The protector body 1 is made of transparent soft PVC material, its length is adjustable vertically, and the top has an adjustable hole size and lock. The above is the complete usage process of this utility model.

[0028] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An adjustable gate valve screw protection sleeve comprising a sleeve body (1), characterized in that: The outer surface of the protective sleeve sleeve body (1) is provided with a wrinkle (2), the outer surface of the protective sleeve sleeve body (1) is sleeved with a group of fixing rings (3), both ends of the protective sleeve sleeve body (1) are communicated with a shrink sleeve (4), one end of each shrink sleeve (4) is connected with a mounting ring (5), the outer surface of each mounting ring (5) is provided with two through ports (7), and the inside of each mounting ring (5) is provided with a tightening belt (6).

2. An adjustable gate valve screw protector as defined in claim 1, wherein: Both ends of each tightening belt (6) are connected with a fixed ball (8).

3. An adjustable gate valve screw protector as defined in claim 1, wherein: Both ends of each tightening belt (6) penetrate through the through port (7) and extend to the outside of the mounting ring (5).

4. An adjustable gate valve screw protector as defined in claim 1, wherein: The outer surface of each tightening belt (6) is in contact with the inner side wall of the mounting ring (5).

5. An adjustable gate valve screw protector as defined in claim 1, wherein: The protective sleeve sleeve body (1) is made of transparent soft pvc material.