Door magnetic structure

Abstract

The utility model discloses a door magnetic structure which comprises a door magnetic body structure and a magnet structure. In the door magnetic body structure, sliding grooves extending in the length direction of an upper shell are formed in the bottom edges of the two side walls of the interior of the upper shell correspondingly, and the two ends of each sliding groove communicate with the exterior of the upper shell; the two sides of the bottom cover are provided with protruding strips opposite to the sliding grooves in the corresponding sides respectively, and the protruding strips extend in the length direction of the bottom cover. The bottom cover is assembled at the bottom of the upper shell, the protruding strips on the two sides of the bottom cover are inserted into the sliding grooves in the two sides of the upper shell respectively, and the protruding strips and the sliding grooves are matched in a tensioning mode. The magnet structure comprises a shell main body, an end cover body and a magnet; the magnet is arranged in the shell main body; the two ends of the shell body are both of an open structure, the two ends of the shell body are covered with matched end cover bodies respectively, and the end cover bodies are connected with the corresponding ends of the shell body in a sealed mode. The door magnetic structure can meet the waterproof performance requirement.

Description

Technical Field

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

[0002] A door magnetic switch consists of two parts: the magnetic switch body and the magnet. Typically, the magnetic switch body is mounted on the door frame, and the magnet is mounted 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 signal is sent to the monitoring host via the communication module on the circuit board, allowing the monitoring host to monitor the open / closed status of the fire door. Existing magnetic switch bodies generally have two parts: an upper shell and a bottom cover. The bottom cover is fastened to the upper shell with clips. Existing magnet-structured shells typically consist of a main body and end caps at both ends, which are also usually fastened together using a simple clip-on method. This simple combination results in poor sealing of both the magnetic switch body and the magnet structure, 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 structure.

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

[0005] A door magnetic structure includes a door magnetic body structure and a magnet structure; the door magnetic body structure includes an outer shell, a circuit board, and an external signal line, wherein 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; characterized in that:

[0006] The bottom edges of the inner side walls of the upper shell are respectively provided with sliding grooves extending along the length of the upper shell, and both ends of the sliding grooves are connected to the outside of the upper shell; the bottom cover is respectively provided with protrusions on both sides opposite to the sliding grooves on the corresponding side, and the protrusions extend along the length of the bottom cover; the bottom cover is assembled to the bottom of the upper shell, and the protrusions on both sides of the bottom cover are respectively inserted into the sliding grooves on both sides of the upper shell, and the protrusions and the sliding grooves are tightened together;

[0007] The magnet structure includes a housing body, end caps, and a magnet; the magnet is located inside the housing body; both ends of the housing body are open, and each end of the housing body is covered with a matching end cap, the end cap being sealed to the corresponding end of the housing body.

[0008] Furthermore, the upper shell is made of aluminum alloy, and the bottom cover is made of plastic.

[0009] 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.

[0010] 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 a tension fit; the end faces of the upper shell and the end cap are sealed by a sealing ring.

[0011] Furthermore, the second mortise and tenon structure has a vertical slot one, a stud passes through the upper shell from top to bottom and is inserted into the vertical slot one, and the stud exerts pressure on both sides of the vertical slot one.

[0012] Furthermore, in the magnet structure, the end cap and the corresponding outer shell body are respectively provided with matching tenon and mortise structure three and tenon and mortise structure four. The end of the outer shell body and the end cap are connected by tenon and mortise structure four and tenon and mortise structure three, and the tenon and mortise structure four and tenon and mortise structure three are tensioned together. The end faces of the outer shell body and the end cap are sealed by a sealing ring.

[0013] Furthermore, the mortise and tenon structure three has a vertical slot two, and the stud two passes through the outer shell body from top to bottom and is inserted into the vertical slot two, and the stud two exerts pressure on both sides of the vertical slot two.

[0014] The beneficial effects of this utility model are as follows: By optimizing the connection method of each part in the outer shell of the door magnetic body and the magnet, this utility model enables the door magnetic body structure and the magnet structure to have better overall sealing performance, thereby enabling the door magnetic structure to meet the waterproof performance requirements. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the door magnetic structure in Embodiment 1 of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the door magnet in Embodiment 1 of this utility model;

[0017] Figure 3 This is a cross-sectional view of the fit between the upper shell and the bottom cover in Embodiment 1 of this utility model;

[0018] Figure 4 This is a cross-sectional view of the upper shell in Embodiment 1 of this utility model;

[0019] Figure 5 This is a cross-sectional view of the bottom cover in Embodiment 1 of this utility model;

[0020] Figure 6 This is a cross-sectional view of the fit between the upper shell, bottom cover, and end cover in Embodiment 1 of this utility model;

[0021] Figure 7 This is a schematic diagram of the end cap structure in Embodiment 1 of this utility model;

[0022] Figure 8 This is a schematic diagram of the overall magnet structure in Embodiment 1 of this utility model;

[0023] Figure 9 This is a cross-sectional view of the fit between the end cover and the outer shell body in Embodiment 1 of this utility model;

[0024] Figure 10 This is a schematic diagram of the overall door magnetic structure in Embodiment 2 of this utility model. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] This embodiment provides a door magnetic structure, such as Figure 1 As shown in Figure 9, it includes a door magnetic main body structure 100 and a magnet structure 200;

[0028] The main structure 100 of the door magnetic sensor includes an outer shell, a circuit board (not shown in the figure), and an external signal line 101. The external signal line 101 is communicatively connected to the circuit board and extends out of the outer shell. The outer shell includes an upper shell 102 and a bottom cover 103. The bottom edges of the two side walls inside the upper shell 102 are respectively provided with sliding grooves 104 extending along the length direction of the upper shell 102. Both ends of the sliding grooves 104 are connected to the outside of the upper shell 102. The bottom cover 103 has protrusions 105 on both sides that are opposite to the corresponding sliding grooves 104. The protrusions 105 extend along the length direction of the bottom cover 103. The bottom cover 103 is assembled to the bottom of the upper shell 102. The protrusions 105 on both sides of the bottom cover 103 are respectively inserted into the sliding grooves 104 on both sides of the upper shell 102, and the protrusions 105 and the sliding grooves 104 are tensioned together.

[0029] The magnet structure 200 includes a housing body 201, an end cover 202, and a magnet (not shown in the figure); the magnet is located inside the housing body 201; both ends of the housing body 201 are open structures, and each end of the housing body 201 is covered with a matching end cover 202, and the end cover 202 is sealed to the corresponding end of the housing body 201.

[0030] In the main body structure of the door magnet in 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 tighten together to form a sealed 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 main body structure of the door magnet. In addition, the magnet structure in this embodiment also adopts a sealed outer shell structure. After the magnet is assembled inside the outer shell body, the end caps at both ends are sealed and combined with the two ends of the outer shell body to form a sealed magnet structure. Thus, both parts of the door magnet structure in this embodiment have good sealing performance and can meet the requirements of waterproofing.

[0031] In this embodiment, the upper shell 102 is made of aluminum alloy, and the bottom cover 103 is made of plastic.

[0032] In this embodiment, the external signal cable 101 extends from the cable outlet 106 of the bottom cover 103 to the outside of the housing, and the cable outlet 106 is sealed with a rubber sealing ring. By sealing the cable outlet with a rubber sealing ring, the airtightness of the housing can be further improved.

[0033] In this embodiment, the upper shell 102 has open ends, and each end of the upper shell 102 is covered with a matching end cap 107. The end cap 107 and the corresponding end of the upper shell 102 are respectively provided with matching tenon and mortise structures 108 and 109. The end of the upper shell 102 and the end cap 107 are connected by tenon and mortise structures 109 and 108, and the tenon and mortise structures 109 and 108 are in a tension fit. The end faces of the upper shell 102 and the end cap 107 are sealed by a sealing ring. The tension tenon and mortise fit and the sealing ring also form a sealing structure between the end cap and the upper shell, further ensuring the airtightness of the outer shell.

[0034] In this embodiment, the end cap 107 is also made of plastic.

[0035] With the sealing structures between the upper and lower shells, between the upper shell and the end caps, and the sealing structure of the wire outlet hole, the overall outer shell of the door magnet can meet the IP65 waterproof requirement.

[0036] Furthermore, the second mortise and tenon structure 108 has a vertical slot 110, through which a stud 111 passes from top to bottom through the upper shell 102 and is inserted into the vertical slot 110. The stud 111 exerts pressure on both sides of the vertical slot 110. The pressure exerted by the stud 111 on both sides of the vertical slot 110 strengthens the connection between the upper shell 102 and the end cap 107.

[0037] In this embodiment, in the magnet structure, the ends of the end cap 202 and the corresponding outer shell body 201 are respectively provided with matching tenon and mortise structures 204 and 205. The end of the outer shell body 201 and the end cap 202 are connected by tenon and mortise structures 205 and 204, and the tenon and mortise structures 205 and 204 are in a tension fit. The end faces of the outer shell body 201 and the end cap 202 are sealed by a sealing ring. Similarly, the tension tenon and mortise fit and the sealing ring also form a sealing structure between the end cap and the outer shell body of the magnet structure, further ensuring the overall sealing performance of the magnet structure.

[0038] Furthermore, in this embodiment, the mortise and tenon structure 204 has a vertical slot 2, and the stud 206 passes through the outer shell body 201 from top to bottom and is inserted into the vertical slot 2, and the stud 206 exerts pressure on both sides of the vertical slot 2. Similarly, the pressure of the stud 206 on both sides of the vertical slot 2 can strengthen the connection between the outer shell body 201 and the end cover 202.

[0039] Example 2

[0040] Figure 1 The door magnet structure shown is a single-magnet door magnet structure. This embodiment provides a double-magnet door magnet structure, such as... Figure 10 As shown, the door magnet structure of this embodiment includes a door magnet main body structure 100' and two magnet structures 200'. The structure of the door magnet main body structure 100' and the magnet structure 200' is the same as that of the door magnet main body structure and magnet structure in Embodiment 1. The usage is also basically the same as that of the door magnet structure in Embodiment 1. The main difference is the change in the number of magnet structures.

[0041] 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 structure, comprising a door magnetic main body structure (100) and a magnet structure (200); the door magnetic main body structure (100) includes an outer shell, a circuit board, and an external signal line (101), wherein the external signal line (101) is communicatively connected to the circuit board and extends outside the outer shell; the outer shell includes an upper shell (102) and a bottom cover (103); characterized in that: The bottom edges of the inner two side walls of the upper shell (102) are respectively provided with sliding grooves (104) extending along the length direction of the upper shell (102), and both ends of the sliding grooves (104) are connected to the outside of the upper shell (102); the bottom cover (103) is respectively provided with protrusions (105) on both sides, which are opposite to the sliding grooves (104) on the corresponding side, and the protrusions (105) extend along the length direction of the bottom cover (103); the bottom cover (103) is assembled to the bottom of the upper shell (102), and the protrusions (105) on both sides of the bottom cover (103) are respectively inserted into the sliding grooves (104) on both sides of the upper shell (102), and the protrusions (105) and the sliding grooves (104) are tightened together; The magnet structure (200) includes a housing body (201), end caps (202), and a magnet; the magnet is located inside the housing body (201); both ends of the housing body (201) are open, and each end of the housing body (201) is covered with a matching end cap (202), and the end cap (202) is sealed to the end of the corresponding housing body (201).

2. The door magnetic structure according to claim 1, characterized in that, The upper shell (102) is made of aluminum alloy, and the bottom cover (103) is made of plastic.

3. The door magnetic structure according to claim 1, characterized in that, The external signal line (101) extends from the outlet hole (106) of the bottom cover (103) to the outside of the outer casing, and the outlet hole (106) is sealed with a rubber sealing ring.

4. The door magnetic structure according to claim 1, characterized in that, The upper shell (102) has an open structure at both ends, and both ends of the upper shell (102) are covered with matching end caps (107); the end caps (107) and the corresponding ends of the upper shell (102) are respectively provided with matching mortise and tenon structure two (108) and mortise and tenon structure one (109), the ends of the upper shell (102) and the end caps (107) are mortised and tenoned by the mortise and tenon structure one (109) and mortise and tenon structure two (108), and the mortise and tenon structure one (109) and mortise and tenon structure two (108) are tensioned; the end faces of the upper shell (102) and the end caps (107) are sealed by a sealing ring.

5. The door magnetic structure according to claim 4, characterized in that, The second mortise and tenon structure (108) has a vertical slot one (110), a stud (111) passes through the upper shell (102) from top to bottom and is inserted into the vertical slot one (110), and the stud (111) exerts pressure on both sides of the vertical slot one (110).

6. The door magnetic structure according to claim 1, characterized in that, In the magnet structure, the end cap (202) and the corresponding outer shell body (201) are respectively provided with matching tenon structure three (204) and tenon structure four (205). The end of the outer shell body (201) and the end cap (202) are connected by tenon and tenon structure four (205) and tenon and tenon structure three (204), and the tenon and tenon structure four (205) and tenon and tenon structure three (204) are in a tension fit. The end faces of the outer shell body (201) and the end cap (202) are sealed by a sealing ring.

7. The door magnetic structure according to claim 6, characterized in that, The mortise and tenon structure three (204) has a vertical slot two, and a stud two (206) passes through the outer shell body (201) from top to bottom and is inserted into the vertical slot two, and the stud two (206) exerts pressure on both sides of the vertical slot two.

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