Protective cover anti-falling structure and plastic valve

Abstract

The utility model discloses a protective cover anti-drop structure and a plastic valve, the anti-drop structure comprises a protective cover and a cylinder cover, the cover body part of the protective cover is provided with at least two clamping jaw parts; a groove part is arranged in a cavity part of the cylinder cover; the clamping jaw part is matched with the groove part; the clamping jaw part surrounds the tail end of the cover body part; the groove part is arranged around the edge of the cavity part; the cross section of the clamping jaw part is L-shaped; the protective cover is installed on the cylinder cover through the clamping jaw part. According to the anti-falling structure, the protective cover can generate elastic deformation (the clamping jaw part is clamped into the groove part) when being assembled, the protective cover is not influenced by other external force after being assembled, the protective cover cannot generate plastic deformation even if being influenced by factors such as vibration and aging in the using process, the L-shaped structure of the clamping jaw part can be tightly clamped, and the protective cover is prevented from falling off. Therefore, falling is avoided, falling of the protective cover is avoided, and influence on attractiveness and reliability of the valve is avoided.

Description

Technical Field

[0001] The utility model relates to an anti-falling structure of a protection cover, in particular to an anti-falling structure of a protection cover and a plastic valve, belonging to the technical field of plastic valve structural parts. Background Art

[0002] Plastic valves are valves whose main components or parts are made of plastic materials. Valves are devices used to control the flow of fluids (liquids, gases or powders), while plastic valves use plastic materials in the manufacturing process. Plastic valves are usually used to control fluids in corrosive media, chemicals or other special working conditions.

[0003] At present, the protective cover of the plastic valve indicator rod generally adopts interference fit, and the protective cover is directly pressed into the cylinder head by external force. Since all components are made of plastic, the deformation of the parts is also large. During long-term use, due to the influence of factors such as vibration and aging, plastic products are prone to plastic deformation, which will cause the connection between the protective cover and the cylinder head to loosen, resulting in the fall of the protective cover, affecting the appearance and reliability of the valve. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a protective cover anti-falling structure and a plastic valve, which solves the problems that the protective cover is easy to fall off and the reliability is reduced.

[0005] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0006] The utility model provides a protective cover anti-falling structure, comprising a protective cover and a cylinder head, wherein:

[0007] The protective cover has at least two claws disposed on its cover body;

[0008] The cylinder head has a groove portion disposed in its chamber portion;

[0009] The claw portion matches the groove portion.

[0010] As a preferred technical solution of the present utility model, the claw portion surrounds the end of the cover body portion.

[0011] As a preferred technical solution of the present invention, the groove portion is arranged around the edge of the chamber portion.

[0012] As a preferred technical solution of the present utility model, the cross-section of the claw portion includes an L-shape.

[0013] As a preferred technical solution of the present utility model, the protective cover is installed on the cover body through the claw part.

[0014] As a preferred technical solution of the present utility model, the number of the claw parts corresponds to the number of the groove parts.

[0015] Preferably, the protection cover further includes a protrusion arranged at the top end of the cover body.

[0016] The utility model also provides a plastic valve having the aforementioned protective cover anti-falling structure.

[0017] The beneficial effects of the utility model are: the anti-falling structure of the utility model, the protective cover will undergo elastic deformation during assembly (the claw part is clamped into the groove part), and the protective cover will not be affected by other external forces after the assembly is completed. Even if it is affected by factors such as vibration and aging during use, the protective cover will not undergo plastic deformation, and the L-shaped structure of the claw part will be tightly clamped so that it will not fall off, thereby avoiding the protective cover from falling off and avoiding affecting the aesthetics and reliability of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the protective cover of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the cylinder head of the utility model;

[0021] In the figure: 100, protective cover; 110, raised portion; 120, cover body portion; 130, claw portion; 200, cylinder head; 210, chamber portion; 220, groove portion; 300, indicator rod. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example

[0024] like Figure 1-3 As shown, this embodiment provides a protective cover anti-falling structure, including a protective cover 100 and a cylinder head 200, wherein in this embodiment, at least two claw portions 130 are provided on the protective cover 100 and its cover body 120, and in other embodiments, multiple claw portions 130 can be provided as needed; the protective cover 100 is installed on the cylinder head 200 through the claw portions 130.

[0025] The cylinder head 200 has a groove portion 220 disposed in its chamber portion 210, and the claw portion 130 matches the groove portion 220. During assembly, the claw portion 120 can be inserted into the groove portion 220, thereby preventing the protective cover from falling off and affecting the aesthetics and reliability of the valve.

[0026] As a preferred embodiment, the claw portion 130 surrounds the end of the cover portion 120 , and the groove portion 220 is disposed around the edge of the chamber portion 210 , so that the claw portion 130 can be easily inserted into the groove portion 220 .

[0027] In this embodiment, the cross-section of the claw portion 130 includes an L-shape, and the claw portion 120 can be inserted into the groove portion 220 to prevent the protective cover from falling off. Even if it is affected by vibration, aging and other factors during use, the protective cover will not undergo plastic deformation. In other embodiments of the utility model, the claw portion 130 can select other L-shaped structures as needed, and the end can be inserted into the groove portion 220.

[0028] In this embodiment, the number of the claw portions 130 corresponds to the number of the groove portions 220, so that the claw portions 130 can be clamped into the corresponding groove portions 220 for fastening. In other embodiments, the claw portions 130 and the groove portions 220 can also be set to unequal numbers, such as multiple claw portions 130 (at least 2) are matched with multiple groove portions 220 (at least 2), so that at least 2 claw portions 130 can be clamped with the lowest 2 groove portions 220, thereby preventing the protective cover 100 from falling off.

[0029] The protective cover 100 also includes a raised portion 110 disposed at the top of the cover body 120, which is preferably integrally formed with the cover body 120 of the protective cover 100. When installing the protective cover 100, it is convenient to pinch the claw portion 130 to reduce the width or diameter, so that it is convenient to insert it into the groove portion 220. The same is true when taking out the protective cover 100, which is convenient for removal.

[0030] This embodiment further provides a plastic valve, which is characterized by having the aforementioned protective cover anti-falling structure, which can effectively prevent or avoid the protective cover 100 from falling off.

[0031] Specifically, with the anti-falling structure of the utility model, the protective cover will undergo elastic deformation during assembly (the claw portion is inserted into the groove portion). After the assembly is completed, the protective cover will not be affected by other external forces. Even if it is affected by vibration, aging and other factors during use, the protective cover will not undergo plastic deformation, and the L-shaped structure of the claw portion will be tightly locked and will not fall off, thereby avoiding the protective cover from falling off and affecting the aesthetics and reliability of the valve.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A protective cover anti-falling structure, characterized in that: It comprises a protective cover (100) and a cylinder head (200), wherein: The protective cover (100) has a cover body (120) provided with at least two claw portions (130); The cylinder head (200) has a groove portion (220) disposed in the chamber portion (210); The claw portion (130) matches the groove portion (220).

2. The protective cover anti-falling structure according to claim 1, characterized in that: The claw portion (130) surrounds the end of the cover portion (120).

3. The protective cover anti-falling structure according to claim 1, characterized in that: The groove portion (220) is arranged around the edge of the chamber portion (210).

4. The protective cover anti-falling structure according to claim 1, characterized in that: The cross section of the claw portion (130) includes an L-shape.

5. The protective cover anti-falling structure according to claim 1, characterized in that: The protection cover (100) is mounted on the cylinder head (200) via the claw portion (130).

6. The protective cover anti-falling structure according to claim 1, characterized in that: The number of the claw portions (130) corresponds to the number of the groove portions (220).

7. The protective cover anti-falling structure according to claim 1, characterized in that: The protective cover (100) further comprises a protruding portion (110) arranged at the top end of the cover body (120).

8. A plastic valve, characterized in that: The invention has a protective cover anti-falling structure as claimed in any one of claims 1 to 7.

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