A door magnet body structure

Abstract

The utility model discloses a door magnet main body structure, including shell body, circuit board and external signal line, and external signal line and circuit board communication connection and stretch the outside of shell body's outside, the shell body includes upper shell and bottom cover, the bottom of two sides side wall of inside of upper shell is equipped with the slide groove of extending along the length direction of upper shell respectively, and the both ends of slide groove all communicate with the outside of upper shell, and the both sides of bottom cover are equipped with the convex stripe opposite with the slide groove of corresponding side respectively, and the convex stripe extends along the length direction of bottom cover, and bottom cover is assembled in the bottom of upper shell, and the convex stripe of bottom cover both sides is inserted in the slide groove of upper shell both sides respectively, and the tight fit between convex stripe and slide groove. The utility model discloses through the combination mode between each part on the shell body of optimization door magnet main body, can make the sealing of door magnet main body get greater improvement, can satisfy the requirement of waterproof performance.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically to a door magnetic main body structure suitable for fire doors. Background Technology

[0002] A door magnetic switch consists of two parts: the magnetic switch body and the magnet. Typically, the magnetic switch body is installed on the door frame, and the magnet is installed on the door leaf. When the door leaf is closed, the magnet approaches the magnetic switch body. The magnetic induction element on the circuit board inside the magnetic switch body generates an electrical signal under the influence of the magnet's magnetic field. This electrical signal is sent to the monitoring host via the communication module on the circuit board, allowing the monitoring host to monitor the opening and closing status of the fire door. Existing door magnetic switch bodies generally have two outer shells: an upper shell and a bottom cover. The bottom cover is fastened to the upper shell with clips. This simple assembly method results in a relatively large gap between the upper shell and the bottom cover, leading to poor overall sealing of the magnetic switch body and failing to meet waterproofing requirements. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the present invention aims to provide a door magnetic body structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A door magnetic main body structure includes an outer shell, a circuit board, and an external signal line. The external signal line is communicatively connected to the circuit board and extends outside the outer shell. The outer shell includes an upper shell and a bottom cover. The upper shell has grooves extending along its length along the bottom edge of its two inner sidewalls, with both ends of the grooves communicating with the outside of the upper shell. The bottom cover has protrusions on both sides corresponding to the grooves on the corresponding sides, extending along the length of the bottom cover. The bottom cover is fitted to the bottom of the upper shell, and the protrusions on both sides of the bottom cover are inserted into the grooves on both sides of the upper shell, with the protrusions and grooves engaging in a tension fit.

[0006] Furthermore, the upper shell is made of aluminum alloy, and the bottom cover is made of plastic.

[0007] Furthermore, the external signal cable extends from the cable outlet hole of the bottom cover to the outside of the outer casing, and the cable outlet hole is sealed with a rubber sealing ring.

[0008] Furthermore, the upper shell has an open structure at both ends, and each end of the upper shell is covered with a matching end cap; the end cap and the corresponding end of the upper shell are respectively provided with a matching tenon structure two and a tenon structure one, and the end of the upper shell and the end cap are connected by the tenon structure one and the tenon structure two, and the tenon structure one and the tenon structure two are tightened together; the end faces of the upper shell and the end cap are sealed by a sealing ring.

[0009] Furthermore, the second mortise and tenon structure has a vertical slot, through which a stud passes from top to bottom through the upper shell and is inserted into the vertical slot.

[0010] The beneficial effects of this utility model are as follows: by optimizing the connection method between the various parts of the outer shell of the door magnet body, the sealing performance of the door magnet body can be greatly improved, thus meeting the requirements of waterproof performance. Attached Figure Description

[0011] Figure 1 This is an overall schematic diagram of the main structure of the door magnet in this embodiment of the present invention;

[0012] Figure 2 This is a cross-sectional view of the fit between the upper shell and the bottom cover in an embodiment of this utility model;

[0013] Figure 3 This is a cross-sectional view of the upper shell in an embodiment of the present utility model;

[0014] Figure 4 This is a cross-sectional view of the bottom cover in an embodiment of the present utility model;

[0015] Figure 5 This is a cross-sectional view of the upper shell, bottom cover, and end cover in an embodiment of the present utility model.

[0016] Figure 6 This is a schematic diagram of the end cap structure in an embodiment of the present invention. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings. It should be noted that this embodiment is based on the present technical solution and provides detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to this embodiment.

[0018] This embodiment provides a door magnet body structure, such as Figure 1 As shown in Figure 6, the device includes an outer casing, a circuit board (not shown), and an external signal line 6. The external signal line 6 is communicatively connected to the circuit board and extends outside the outer casing. The outer casing includes an upper shell 1 and a bottom cover 2. The bottom edges of the inner side walls of the upper shell 1 are respectively provided with sliding grooves 3 extending along the length direction of the upper shell 1, and both ends of the sliding grooves 3 are connected to the outside of the upper shell 1. The bottom cover 2 is provided with protrusions 4 on both sides, which are opposite to the sliding grooves 3 on the corresponding side. The protrusions 4 extend along the length direction of the bottom cover 2. The bottom cover 2 is assembled to the bottom of the upper shell 1, and the protrusions 4 on both sides of the bottom cover 2 are respectively inserted into the sliding grooves 3 on both sides of the upper shell 1, and the protrusions 4 and the sliding grooves 3 are tightened together.

[0019] In the door magnet main body structure of this embodiment, matching grooves and protrusions are provided on the upper shell and the bottom cover. During assembly, after the circuit board is installed on the bottom cover, the protrusions on both sides of the bottom cover slide into the ends of the grooves on both sides of the upper shell, and the protrusions and grooves are tightened together to form a sealing structure. Compared with the existing snap-fit ​​method, this can effectively reduce the installation gap between the bottom cover and the upper shell and enhance the sealing performance of the door magnet main body structure.

[0020] In this embodiment, the upper shell 1 is made of aluminum alloy, and the bottom cover 2 is made of plastic.

[0021] In this embodiment, the external signal cable 6 extends from the cable outlet 11 of the bottom cover 2 to the outside of the outer casing, and the cable outlet 11 is sealed with a rubber sealing ring. By sealing the cable outlet with a rubber sealing ring, the sealing performance of the outer casing can be further improved.

[0022] In this embodiment, the upper shell 1 has open ends, and each end of the upper shell 1 is covered with a matching end cap 5. The end cap 5 and the corresponding end of the upper shell 1 are respectively provided with matching tenon and mortise structures 8 and 7. The end of the upper shell 1 and the end cap 5 are connected by tenon and mortise structures 7 and 8, and the tenon and mortise structures 7 and 8 are in a tension fit. The end faces of the upper shell 1 and the end cap 5 are sealed by a sealing ring (not shown in the figure). The tension tenon and mortise fit and the sealing ring create a sealing structure between the upper shell and the end cap, further improving the sealing performance of the outer shell. During assembly, the bottom cover is first assembled onto the bottom of the upper shell, and then the end caps at both ends are assembled onto the two ends of the upper shell.

[0023] In this embodiment, the end cap 5 is also made of plastic.

[0024] With the sealing structures between the upper and lower shells, between the upper shell and the end caps, and the sealing structure of the cable outlet, the entire outer shell can meet the IP65 waterproof requirement.

[0025] Furthermore, the second mortise and tenon structure 8 has a vertical slot 9, through which a stud 10 passes from top to bottom through the upper shell 1 and is inserted into the vertical slot 9, and the stud 10 exerts pressure on both sides of the vertical slot 9. The pressure of the stud 10 on both sides of the vertical slot 9 can enhance the connection between the upper shell 1 and the end cap 5.

[0026] For those skilled in the art, various corresponding changes and modifications can be made based on the above technical solutions and concepts, and all such changes and modifications should be included within the protection scope of the claims of this utility model.

Claims

1. A door magnetic main body structure, comprising an outer shell, a circuit board, and an external signal line (6), wherein the external signal line (6) is communicatively connected to the circuit board and extends outside the outer shell; the outer shell comprises an upper shell (1) and a bottom cover (2); characterized in that, The bottom edge of the inner sidewalls of the upper shell (1) is provided with a sliding groove (3) extending along the length direction of the upper shell (1), and both ends of the sliding groove (3) are connected to the outside of the upper shell (1); the bottom cover (2) is provided with a protrusion (4) on both sides, which is opposite to the sliding groove (3) on the corresponding side, and the protrusion (4) extends along the length direction of the bottom cover (2); the bottom cover (2) is assembled to the bottom of the upper shell (1), and the protrusions (4) on both sides of the bottom cover (2) are respectively inserted into the sliding grooves (3) on both sides of the upper shell (1), and the protrusions (4) and the sliding grooves (3) are tightened together.

2. The door magnet main body structure according to claim 1, characterized in that, The upper shell (1) is made of aluminum alloy, and the bottom cover (2) is made of plastic.

3. The door magnet main body structure according to claim 1, characterized in that, The external signal line (6) extends from the outlet hole (11) of the bottom cover (2) to the outside of the outer casing, and the outlet hole (11) is sealed with a rubber sealing ring.

4. The door magnet main body structure according to claim 1, characterized in that, The upper shell (1) has an open structure at both ends, and both ends of the upper shell (1) are covered with matching end caps (5); the end caps (5) and the corresponding ends of the upper shell (1) are respectively provided with matching mortise and tenon structure two (8) and mortise and tenon structure one (7), the ends of the upper shell (1) and the end caps (5) are connected by mortise and tenon structure one (7) and mortise and tenon structure two (8), and the mortise and tenon structure one (7) and mortise and tenon structure two (8) are in a tension fit; the end faces of the upper shell (1) and the end caps (5) are sealed by a sealing ring.

5. The door magnet body structure according to claim 1, characterized in that, The second tenon structure (8) has a vertical slot (9), and a stud (10) passes through the upper shell (1) from top to bottom and is inserted into the vertical slot (9).

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