Shell structure of wind pressure switch

Abstract

The utility model relates to the technical field of wind pressure switch shells, and discloses a wind pressure switch shell structure, which comprises a middle shell, a bottom shell and a top end cover, an inserting shaft is assembled on the side edge of the bottom shell, and a wear-resistant coating is coated on the outer side wall of the top end cover. The inserting shaft is assembled at the front and back positions of the side edge of the bottom shell, and the reserved groove is formed in the middle of the mounting ring, so that when the mounting ring is assembled, after the inserting shaft penetrates through the reserved groove, the side edge of the mounting ring is in contact with the side edge of the bottom shell; then the connecting pieces are fixed by bolts through the mounting holes, so that the mounting ring is firstly fixed, external threads are fixed on the outer wall of the mounting ring, internal threads are fixed on the side edge of the inner wall of the protective cover, and the internal threads and the external threads are matched with each other to complete threaded connection; the protective cover can protect the position of the inserting shaft, and therefore the overall protective capacity is well improved in the working process.

Description

Technical Field

[0001] This utility model relates to the field of wind pressure switch housing technology, specifically a wind pressure switch housing structure. Background Technology

[0002] A wind pressure switch is a detection element mainly used to detect changes in airflow or wind pressure and convert them into electrical signals to achieve automatic control and monitoring. It is widely used in various equipment and systems that require wind pressure detection, such as HVAC, ventilation systems, gas supply and industrial automation.

[0003] A wind pressure switch is a switch used to monitor wind speed. When the wind speed exceeds a set value, the wind pressure switch will automatically shut off to control airflow and protect equipment. A wind pressure switch requires a corresponding housing, and the side of the housing is equipped with a necessary connector shaft. Since this connector shaft is mostly located externally, damage to the connector shaft during transportation or storage can easily damage the housing. Utility Model Content

[0004] The purpose of this utility model is to provide a wind pressure switch housing structure to solve the problem mentioned in the background art that the side of the housing is also equipped with necessary plug shafts. Since these plug shafts are mostly located in the external direction, if the plug shafts are damaged during transportation, storage, etc., the housing is easily damaged directly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wind pressure switch housing structure, comprising a middle housing, a bottom housing, and a top cover. A plug-in shaft is mounted on the side of the bottom housing, and a mounting ring is mounted on the side of the bottom housing outside the plug-in shaft. A reserved groove is formed in the mounting ring. Connecting pieces are fixed at the upper and lower positions of the side of the mounting ring. An external thread is fixed on the outside of the mounting ring, and a protective cover is connected to the external thread. An internal thread is fixed on the inner wall of the side of the protective cover, and the external thread and the internal thread are threadedly connected. The outer wall of the top cover is coated with a wear-resistant coating.

[0006] As a further technical solution of this utility model, the connecting pieces are symmetrically distributed about the central axis of the mounting ring, and the inner diameter of the reserved groove is larger than the outer diameter of the plug shaft.

[0007] As a further technical solution of this utility model, the connecting piece is provided with a mounting hole, and the bottom shell and the mounting ring are fixed together by bolts through the mounting hole.

[0008] As a further technical solution of this utility model, the front end face of the middle shell is equipped with an assembly bolt, and two sets of the plug shaft are arranged at the front and rear positions on the side of the bottom shell.

[0009] As a further technical solution of this utility model, a cavity is formed in the top cover, a first support rod for support is fixed inside the cavity, and a diagonal brace is fixed at the corner position in the cavity.

[0010] As a further technical solution of this utility model, the first support rod is evenly distributed at the four side length positions in the cavity, and the diagonal support rod is symmetrically distributed about the central axis of the top cover.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the wind pressure switch housing structure not only improves the protection capability, but also improves the deformation resistance and service life of the wind pressure switch housing structure.

[0012] (1) The plug-in shaft is assembled at the front and rear positions on the side of the bottom housing. A reserved groove is opened in the middle position of the mounting ring. Therefore, when assembling the mounting ring, the plug-in shaft can be passed through the reserved groove, and the side of the mounting ring can be contacted with the side of the bottom housing. Then, the connecting piece is fixed with bolts through the mounting hole. In this way, the mounting ring is fixed first. The outer wall of the mounting ring is fixed with an external thread, and the inner wall of the protective cover is fixed with an internal thread. The threaded connection is completed by the mutual adaptation between the internal thread and the external thread. Therefore, the protective cover covers the outside of the plug-in shaft. In this way, the protective cover can protect the position of the plug-in shaft. Therefore, the overall protection capability is improved in the working process.

[0013] (2) By forming a cavity in the top cover, the first support rods are evenly distributed in the four sides of the cavity. The first support rods serve the purpose of support and protection. At the same time, diagonal braces are fixed at the corners of the cavity, which also serve the purpose of strengthening the support at the corners, thereby improving the deformation resistance of the top cover during operation.

[0014] (3) By coating the outer side wall of the middle shell, bottom shell, top cover and other parts with a wear-resistant coating, the wear-resistant protection capability is improved by adding the wear-resistant coating. Furthermore, the addition of the first support rod and the diagonal brace improves the deformation resistance of the top cover. Similarly, the same reinforcing rod can be equipped inside the shell of the middle shell and bottom shell to improve the overall deformation resistance and increase the overall service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the top cover of this utility model.

[0018] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0019] In the figure: 1. Middle shell; 2. Bottom shell; 3. Assembly bolt; 4. Top cover; 5. Insert shaft; 6. First support rod; 7. Wear-resistant coating; 8. Diagonal brace; 9. Cavity; 10. Protective cover; 11. Connecting piece; 12. Mounting ring; 13. Reserved groove. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 An embodiment of this utility model provides a wind pressure switch housing structure, including a middle housing 1, a bottom housing 2, and a top cover 4. A plug-in shaft 5 is assembled on the side of the bottom housing 2. An mounting ring 12 is assembled on the side of the bottom housing 2 outside the plug-in shaft 5. A reserved groove 13 is formed in the mounting ring 12. Connecting pieces 11 are fixed at the upper and lower positions of the side of the mounting ring 12. An external thread is fixed on the outside of the mounting ring 12. A protective cover 10 is connected to the external thread. An internal thread is fixed on the inner wall of the side of the protective cover 10. The external thread and the internal thread are threadedly connected. The outer wall of the top cover 4 is coated with a wear-resistant coating 7.

[0022] The connecting pieces 11 are symmetrically distributed about the central axis of the mounting ring 12, and the inner diameter of the reserved groove 13 is larger than the outer diameter of the plug shaft 5.

[0023] The connecting piece 11 has a mounting hole, and the bottom housing 2 and the mounting ring 12 are fixed together by bolts through the mounting hole.

[0024] The front end face of the middle housing 1 is fitted with mounting bolts 3, and two sets of insertion shafts 5 are arranged at the front and rear positions on the side of the bottom housing 2.

[0025] A cavity 9 is formed in the top cover 4, and a first support rod 6 for support is fixed inside the cavity 9. A diagonal brace 8 is fixed at the corner position of the cavity 9.

[0026] The first support rod 6 is evenly distributed at the four side length positions in the cavity 9, and the diagonal support rod 8 is symmetrically distributed about the central axis of the top cover 4;

[0027] Furthermore, a wear-resistant coating 7 can be applied to the outer side walls of the entire structure, including the middle shell 1, bottom shell 2, and top cover 4, thereby improving the wear-resistant protection effect.

[0028] The additional diagonal brace 8 is located at the corner, serving to support the corner.

[0029] Working principle: First, a wear-resistant coating 7 is pre-coated on the outer walls of the middle shell 1, bottom shell 2, and top cover 4. A cavity 9 is formed in the top cover 4. First support rods 6 are evenly distributed along the four sides of the cavity 9. At the same time, diagonal braces 8 are fixed at the corners of the cavity 9. With the addition of the first support rods 6 and diagonal braces 8, the deformation resistance of the top cover 4 is improved. When it is necessary to protect the position of the plug shaft 5, the plug shaft 5 can be passed through the reserved groove 13, and the side of the mounting ring 12 can be in contact with the side of the bottom shell 2. Then, the mounting ring 12 is fixed first by bolts through the mounting hole at the position of the connecting piece 11. The mounting ring 12 is fixed first. The outer wall of the mounting ring 12 is fixed with external threads, and the side of the inner wall of the protective cover 10 is fixed with internal threads. The threaded connection is completed by the mutual adaptation between the internal and external threads. The protective cover 10 is placed over the outside of the plug shaft 5, thus protecting the position of the plug shaft 5.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A wind pressure switch housing structure, comprising a middle housing (1), a bottom housing (2), and a top cover (4), characterized in that: A plug shaft (5) is fitted on the side of the bottom housing (2). A mounting ring (12) is fitted on the side of the bottom housing (2) outside the plug shaft (5). A reserved groove (13) is formed in the mounting ring (12). A connecting piece (11) is fixed at the upper and lower positions of the side of the mounting ring (12). An external thread is fixed on the outside of the mounting ring (12). A protective cover (10) is connected at the external thread. An internal thread is fixed on the inner wall of the side of the protective cover (10). The external thread and the internal thread are connected by a thread. The outer wall of the top cover (4) is coated with a wear-resistant coating (7).

2. The wind pressure switch housing structure according to claim 1, characterized by: The connecting piece (11) is symmetrically distributed about the central axis of the mounting ring (12), and the inner diameter of the reserved groove (13) is larger than the outer diameter of the plug shaft (5).

3. The wind pressure switch housing structure according to claim 1, characterized by: The connecting piece (11) has an installation hole, and the bottom shell (2) and the mounting ring (12) are fixed together by bolts through the installation hole.

4. The wind pressure switch housing structure according to claim 1, characterized by: The front end face of the middle shell (1) is fitted with a mounting bolt (3), and two sets of the insertion shaft (5) are arranged at the front and rear positions on the side of the bottom shell (2).

5. The wind pressure switch housing structure according to claim 1, characterized by: A cavity (9) is formed in the top cover (4), and a first support rod (6) for support is fixed inside the cavity (9). A diagonal brace (8) is fixed at the corner position in the cavity (9).

6. The wind pressure switch housing structure according to claim 5, wherein: The first support rod (6) is evenly distributed at the four side length positions in the cavity (9), and the diagonal support rod (8) is symmetrically distributed about the central axis of the top cover (4).

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