Stop valve with protection function

Abstract

The stop valve with the protection function comprises a valve body, a grab rail and a valve rod, a valve plate is arranged below the valve rod, the valve body comprises a transverse section and a longitudinal section which are perpendicular to each other, a protection assembly and a protection cover are arranged on the outer side of the valve body, and the protection assembly comprises a protection sleeve. The protective sleeve is composed of a horizontal section and a vertical section, the two sides of the protective sleeve are provided with curled edges which are curled inwards, folding belts penetrate through the inner sides of the curled edges, the two sides of the horizontal section and the two sides of the vertical section are provided with hook-and-loop fasteners which are mutually matched and pasted, an edge landing plate is arranged on the outer upper side of the vertical section, and the two sides of the edge landing plate are provided with limiting pieces. Clamping plates are annularly arranged at the lower end of the inner side face of the protective cover, and the length of each clamping plate is smaller than the distance between every two adjacent limiting pieces. According to the scheme, through the arrangement of the protection assembly and the protection cover, the valve rod and the sealing face can be prevented from being abraded or corroded due to the influence of the external environment, and the service life of the stop valve is further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve, concretely is a stop valve with protection function. BACKGROUND

[0002] The stop valve is also called a gate valve, belongs to a forced sealing type valve, is one of the most widely used valves, and mainly comprises a valve body, a valve cover, a valve rod and a hand wheel, and the stop valve is opened and closed by rotating the hand wheel to drive the valve rod in the valve body to drive the valve plate in the valve body.

[0003] During use of the stop valve, the valve rod part on the stop valve is in long-term contact with air, so that moisture in the air adheres to the valve rod, the valve rod part is gradually corroded with use of the stop valve, the valve rod part is difficult to move, and the stop valve is difficult to open and close. In the prior art, a protective cover is arranged to protect the valve rod and the sealing surface, so that they are prevented from being affected by the external environment and being abraded or corroded. This helps to prolong the service life of the valve and ensure normal operation. However, the protective cover in the prior art is generally installed by bolts, and has low installation efficiency and occupies a large space. In view of this, the utility model provides a stop valve with protection function. UTILITY MODEL CONTENTS

[0004] The utility model discloses a stop valve with protection function, which solves the problem of the protective cover in the prior art, which is generally installed by bolts, has low installation efficiency and occupies a large space.

[0005] To achieve the above object, the utility model provides the following technical scheme: a stop valve with protection function, comprising a valve body, a handrail rod and a valve rod, a valve plate is arranged below the valve rod, the valve body comprises a transverse section and a longitudinal section which are perpendicular to each other, the valve rod is arranged in the longitudinal section, a protection assembly and a protective cover are arranged on the outer side of the valve body, the protection assembly comprises a protection sleeve, the protection sleeve is composed of a horizontal section and a vertical section, inwardly rolled flanges are arranged on the two sides of the protection sleeve, gathering belts are inserted into the inwardly rolled flanges, magic tapes are arranged on the two sides of the horizontal section and the vertical section and are matched and pasted, a lap plate is arranged on the outer upper side of the vertical section, limit pieces are arranged on the two sides of the lap plate, a clamping plate is annularly arranged on the lower end of the inner side of the protective cover, flexible pads are glued to the lower end faces of the limit pieces, and the length of the clamping plate is less than the interval of the adjacent limit pieces.

[0006] Preferably, the protection sleeve is in the shape of a cross, and the protection sleeve is arranged on the outer side of the valve body.

[0007] Preferably, the length of the horizontal section is greater than the length of the transverse section of the valve body.

[0008] Preferably, the inner diameter of the protective cover is larger than the outer diameter of the handrail, and the centers of the protective cover and the handrail are collinear.

[0009] Preferably, the upper end of the protective cover is provided with a transparent plate, which is located directly above the valve body.

[0010] Preferably, the width of the horizontal section is greater than the outer diameter of the transverse section of the valve body.

[0011] Preferably, the vertical section is larger than the outer diameter of the longitudinal section of the valve body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This type of gate valve with protective function, through the setting of protective components and protective covers, after the gate valve is fixed, the protective sleeve is attached to the corresponding position of the valve body, and the protective cover is placed on the upper side of the valve stem. The protective cover can protect the connection between the valve stem and the valve body, preventing the valve stem from contact with air and being affected by the external environment, which would lead to corrosion and affect the adjustment operation of the valve stem. The protective sleeve can protect the connection between the valve body and the pipeline. By placing the connection between the valve body and the pipeline inside the protective sleeve, pulling the two sides of the tightening straps can cause the rolled edges to tighten inward, which can wrap the two sides of the protective sleeve inward, covering the connection between the pipeline and the valve body. This can prevent external air from entering the valve body and causing damage to the internal components of the gate valve, thus further ensuring the service life of the gate valve. Moreover, the protective cover is connected to the protective components by a snap-fit ​​method, which can easily remove the protective cover and operate the valve stem. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the protective component and valve body of this utility model in a separated state;

[0015] Figure 2 This is a schematic diagram of the protective component of this utility model in the state of being protected;

[0016] Figure 3 This is a schematic diagram of the protective components of this utility model in their protective state.

[0017] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram at point M;

[0018] Figure 5 This is a schematic diagram of the protective component structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the protective sleeve of this utility model in its unfolded state;

[0020] Figure 7 This is a schematic diagram of the protective cover structure of this utility model.

[0021] In the diagram: 1. Valve body; 2. Handrail; 3. Protective components; 31. Protective sleeve; 311. Horizontal section; 312. Vertical section; 32. Rolled edge; 33. Gathering strap; 34. Edge plate; 35. Velcro; 36. Limiting component; 37. Flexible pad; 4. Protective cover; 41. Snap-fit ​​plate; 5. Valve stem. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figures 1-7 This utility model provides a technical solution: a gate valve with a protective function, mainly addressing the problems of existing protective covers, which are generally bolted, resulting in low installation efficiency and large space occupation. The specific solution is as follows: it includes a valve body 1, a handle 2, and a valve stem 5. A valve plate is provided below the valve stem 5. The valve body 1 includes mutually perpendicular transverse and longitudinal sections, which are internally connected. The valve stem 5 is located inside the longitudinal section. A protective component 3 and a protective cover 4 are provided on the outside of the valve body 1. The cooperation of the protective component 3 and the protective cover 4 can protect the valve body 1, the valve stem, and the sealing surface, preventing them from being worn or corroded by the external environment.

[0024] Please see Figure 1 and Figure 2 The protective component 3 includes a protective sleeve 31, which is made of silicone cloth and is not afraid of oil or water. It has good water-repellent properties. The polyurethane foam inside has excellent thermal insulation and waterproof properties. Using it as a protective structure for the valve body 1 can further improve the service life of the valve body 1.

[0025] Furthermore, the protective sleeve 31 is cross-shaped and fits snugly against the outside of the valve body 1. The protective sleeve 31 consists of a horizontal section 311 and a vertical section 312, with the vertical section 312 having a larger outer diameter than the longitudinal section of the valve body 1. The length of the horizontal section 311 is greater than the length of the transverse section of the valve body 1. The width of the horizontal section 311 is greater than the outer diameter of the transverse section of the valve body 1. This design allows the protective sleeve 31 to completely enclose the valve body 1, thus providing better protection.

[0026] Please see Figure 5The protective sleeve 31 has inwardly rolled edges 32 on both sides, and a gathering strap 33 is inserted inside the rolled edges 32. The rolled edges 32 can restrict the position of the gathering strap 33. After the gathering straps 33 on both sides are gathered, the rolled edges 32 on both sides of the protective sleeve 31 can be gathered inward and fit against the valve body 1. Since the length of the horizontal section 311 of the protective sleeve 31 is greater than the length of the valve body 1, after the valve body 1 is connected to the pipeline, the connection point is located inside the protective sleeve 31. After the rolled edges 32 are gathered inward, the connection point between the pipeline and the valve body 1 can be protected.

[0027] Furthermore, the horizontal section 311 and the vertical section 312 are provided with Velcro 35 that can be attached to each other. The Velcro 35 can further increase the fit between the protective sleeve 31 and the valve body 1, thereby enhancing the protection effect on the valve body 1.

[0028] Furthermore, an overlap plate 34 is provided on the upper outer side of the vertical section 312. The overlap plate 34 is made of rigid plastic and is fixed to the inner side of the protective sleeve 31 by adhesive bonding. The overlap plate 34 serves to connect and fix the protective sleeve 31 to the protective cover 4. A snap-fit ​​plate 41 is provided in a ring shape at the lower end of the inner side of the protective cover 4. A flexible pad 37 is glued to the lower end face of the limiting member 36. The length of the snap-fit ​​plate 41 is less than the distance between adjacent limiting members 36. Limiting members 36 are provided on both sides of the overlap plate 34. The inner diameter of the protective cover 4 is larger than the outer diameter of the handrail 2, and the centers of the protective cover 4 and the handrail 2 are collinear. When the protective cover 4 is connected to the protective sleeve 31, the snap-fit ​​plate 41 on the protective cover 4 is snapped between the adjacent limiting members 36, which facilitates the insertion of the protective cover 4. After rotating the protective cover 4, the snap-fit ​​plate 41 is positioned below the limiting member 36, at which point the flexible pad 37 is compressed. The elasticity of the flexible pad 37 can further improve the connection effect between the protective cover 4 and the protective sleeve 31.

[0029] It is worth noting that, such as Figure 4 and Figure 5 As shown, inclined surfaces are provided on both sides of the flexible pad 37, which facilitates the screwing in of the snap-fit ​​plate 41.

[0030] In this example, a transparent plate 42 is provided at the upper end of the protective cover 4, which allows for easy observation of the positions of the valve stem 5 and the handle 2. The transparent plate 42 is located directly above the valve body 1.

[0031] Working principle: This type of gate valve with protective function, after being fixedly installed with the pipeline, provides protection when such protection is needed. Figure 2In the indicated state, the protective component 3 is positioned below the valve body 1. At this time, the length of both sides of the horizontal section 311 of the protective sleeve 31 is sufficient to cover the connection between the pipe and the valve body 1. The connection is located inside the protective sleeve 31. Pulling the gathering straps 33 on both sides causes the rolled edges 32 to gather inward, allowing both sides of the protective sleeve 31 to gather inward and wrap around the connection between the pipe and the valve body 1. Furthermore, the Velcro 35 further increases the fit between the protective sleeve 31 and the valve body 1, thereby enhancing the protection of the valve body 1. The vertical section 312 can wrap around the longitudinal section of the valve body 1 and is fixed by Velcro 35. At this time, the limiting member 36 set on the outside of the protective sleeve 31 can facilitate the connection of the protective cover 4. When the protective cover 4 is connected to the protective sleeve 31, the snap-fit ​​plate 41 on the protective cover 4 is snapped between the adjacent limiting members 36, which facilitates the insertion of the protective cover 4. After rotating the protective cover 4, the snap-fit ​​plate 41 is positioned below the limiting member 36, at which time the flexible pad 37 is compressed. The elasticity of the flexible pad 37 can further improve the connection effect between the protective cover 4 and the protective sleeve 31.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gate valve with protective function, comprising a valve body (1), a handle (2), and a valve stem (5), wherein a valve plate is disposed below the valve stem (5), the valve body (1) comprises mutually perpendicular transverse sections and longitudinal sections, and the valve stem (5) is disposed inside the longitudinal section, characterized in that: The valve body (1) is provided with a protective component (3) and a protective cover (4) on the outside. The protective component (3) includes a protective sleeve (31). The protective sleeve (31) is composed of a horizontal section (311) and a vertical section (312). The protective sleeve (31) has inwardly rolled edges (32) on both sides. A gathering strap (33) is inserted inside the rolled edge (32). The horizontal section (311) and the vertical section (312) are provided with Velcro (35) that cooperate with each other. The upper side of the vertical section (312) is provided with an overlap plate (34). The overlap plate (34) is provided with limiters (36) on both sides. The lower end of the inner side of the protective cover (4) is provided with a snap-fit ​​plate (41) in an annular shape. The lower end of the limiter (36) is glued with a flexible pad (37). The length of the snap-fit ​​plate (41) is less than the distance between adjacent limiters (36).

2. A gate valve with protective function according to claim 1, characterized in that: The protective sleeve (31) is in the shape of a cross and is fitted to the outside of the valve body (1).

3. A gate valve with protective function according to claim 1, characterized in that: The length of the horizontal section (311) is greater than the length of the transverse section of the valve body (1).

4. A gate valve with protective function according to claim 1, characterized in that: The inner diameter of the protective cover (4) is larger than the outer diameter of the handrail (2), and the centers of the protective cover (4) and the handrail (2) are collinear.

5. A gate valve with protective function according to claim 1, characterized in that: The upper end of the protective cover (4) is provided with a transparent plate (42), which is located directly above the valve body (1).

6. A gate valve with protective function according to claim 1, characterized in that: The width of the horizontal section (311) is greater than the outer diameter of the transverse section of the valve body (1).

7. A gate valve with protective function according to claim 1, characterized in that: The vertical section (312) is larger than the outer diameter of the longitudinal section of the valve body (1).

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