An electrical connection device for a relay base and its matching point detector.

Abstract

This utility model discloses an electrical connection device for a relay base and its matching point detector, relating to the field of fire protection electrical connection technology. It includes a base and a detector mounted on the base. The detector has a plug with contacts, and the base has a guide plate. A connecting component is provided between the plug and the base to enhance the connection stability between them. The connecting component includes a connecting block located in the base. This utility model, by setting the connecting component, allows the connecting block to automatically engage with the plug's slot when it is inserted into the base, thus completing the limiting connection of the detector on the base. Compared to traditional plug-in methods, this method offers higher connection stability. Even if the metal contact deformation capacity decreases, the detector can still be firmly connected in the base, preventing loosening and detachment.

Description

Technical Field

[0001] This utility model relates to the field of fire protection electrical connection technology, and in particular to an electrical connection device for a relay base and its matching point detector. Background Technology

[0002] The relay base is a key component in electrical control and automation systems used to connect and fix relays (such as intermediate relays) and provide electrical interfaces. Its core functions are to realize signal transmission, power distribution and mechanical support. Point detectors are key components in automatic fire alarm systems. By sensing fire characteristic parameters such as smoke, temperature and flame, they convert physical quantities into electrical signals to trigger alarms. The connection between the relay base and the point detector is usually achieved through plugs and sockets.

[0003] When point detectors are installed in dusty production workshops, the harsh surrounding environment makes them prone to dust accumulation or even the entry of small amounts of dust. To ensure their normal operation, point detectors often need to be periodically removed from the relay base for maintenance. However, repeated plugging and unplugging of the point detector from the relay base can easily cause metal fatigue and elasticity decay. That is, after long-term plugging and unplugging, the metal contacts (such as spring sheets) inside the plug and socket lose their elastic deformation capacity, resulting in insufficient contact pressure and loosening. Consequently, the point detector is prone to falling off, affecting normal use.

[0004] To address this, an electrical connection device for a relay base and its matching point detector is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electrical connection device for a relay base and its matching point detector, comprising a base and a detector mounted on the base, the detector having a plug, the plug having a contact piece, and the base having a guide piece; a connection component for enhancing the connection stability between the plug and the base is provided between the plug and the base, the connection component including a connection block in the base, the plug having a bayonet adapted to the connection block, and a spring fixedly connected between the connection block and the base.

[0007] Preferably, a pull rod is slidably connected to the base, the pull rod is fixedly connected to the connecting block, and the pull rod is located inside the spring.

[0008] Preferably, a pull block is fixedly connected to the end of the pull rod, and the pull block is provided with an anti-slip rubber pad.

[0009] Preferably, both the plug and the connecting block are provided with bevels of the same angle.

[0010] Preferably, a movable piece is slidably connected to the guide piece, and a connecting plate is fixedly connected to the movable piece.

[0011] Preferably, the base has a limiting groove, and the connecting plate is slidably connected in the limiting groove.

[0012] Preferably, a threaded rod is rotatably connected to the base, the threaded rod is a bidirectional threaded rod, the threaded rod is threadedly connected to the connecting plate, and a rotating block is fixedly connected to the end of the threaded rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model, by setting a connecting component, enables the connecting block to automatically engage with the slot on the plug when the plug is inserted into the base, thereby completing the limiting connection of the detector on the base through the connecting block. Compared with the traditional plug-in method, this method has higher connection stability. Even if the deformation capability of the metal contact decreases, the detector can still be stably connected in the base to form an electrical connection, and there will be no loosening that could cause the detector to fall off.

[0015] 2. By setting a movable piece, and when rotating the threaded rod, the connecting plate can drive the movable piece to approach and fit against the guide piece or disengage from the guide piece, so that neither the guide piece nor the movable piece will deform, thus avoiding the situation of reduced deformation capacity and loosening caused by traditional plug-in methods. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an electrical connection device between a relay base and its matching point detector according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the plug structure of an electrical connection device between a relay base and its matching point detector according to an embodiment of the present invention.

[0018] Figure 3 This is a cross-sectional view of the base of an electrical connection device for a relay base and its matching point detector, according to an embodiment of the present invention.

[0019] Figure 4 This invention relates to an electrical connection device for a relay base and its matching point detector. Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the movable plate structure of an electrical connection device between a relay base and its matching point detector, according to an embodiment of this utility model.

[0021] The following are marked in the diagram: 1. Base; 2. Detector; 3. Plug; 4. Contact piece; 401. Guide piece; 5. Connecting block; 6. Bayonet; 7. Spring; 8. Pull rod; 9. Pull block; 10. Inclined surface; 11. Moving piece; 12. Connecting plate; 13. Threaded rod; 14. Rotating block. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to embodiments:

[0023] This utility model discloses an electrical connection device between a relay base and its matching point detector, referring to... Figure 1-5 The device includes a base 1 and a detector 2 mounted on the base 1. The detector 2 has a plug 3 and a contact piece 4. The base 1 has a guide piece 401. The plug 3, the contact piece 4 on the plug 3, and the guide piece 401 in the base 1 are all existing technologies. The guide piece 401 is connected to the circuit board in the base 1. A connecting component is provided between the plug 3 and the base 1 to enhance the connection stability between the plug 3 and the base 1. By setting the connecting component, the connection stability between the plug 3 and the base 1 can be enhanced, so that even if the detector 2 is easily loosened after being repeatedly plugged and unplugged from the base 1, the detector 2 will not fall off the base 1. Furthermore, the detector 2 and the base 1 can still maintain good connection stability when subjected to vibration. The connecting component includes a connecting block 5 in the base 1. The plug 3 has a bayonet 6 that matches the connecting block 5. A spring 7 is fixedly connected between the connecting block 5 and the base 1.

[0024] Reference Figure 1-5 Specifically, both the plug 3 and the connecting block 5 are provided with inclined surfaces 10 at the same angle. When the detector 2 is plugged in, the plug 3 on the detector 2 is inserted into the base 1. As the plug 3 enters the base 1, the inclined surface 10 on the plug 3 gradually contacts and adheres to the inclined surface 10 on the connecting block 5 and applies pressure to the connecting block 5. Under the combined action of pressure and the inclined surface 10, the plug 3 pushes the connecting block 5 into the base 1. When the connecting block 5 enters the base 1, the spring 7 is compressed and generates a reaction force until the plug 3 moves the bayonet 6 to the corresponding position of the connecting block 5 during its descent. Then, the connecting block 5 moves into the bayonet 6 under the reaction force of the spring 7 to engage, thereby completing the limiting and fixing of the plug 3 through the connecting block 5. This ensures that the detector 2 is fixedly connected in the base 1. Compared with the traditional plugging method mentioned in the background art, this method of limiting the connection through the connecting block 5 has higher connection stability, and the detector 2 can still be stably connected in the base 1 even when the deformation capability of the metal contact decreases.

[0025] Reference Figure 1-5A movable piece 11 is slidably connected to the guide piece 401, and a connecting plate 12 is fixedly connected to the movable piece 11. A limiting groove is formed in the base 1, and the connecting plate 12 is slidably connected in the limiting groove. A threaded rod 13 is rotatably connected to the base 1. The threaded rod 13 is a bidirectional threaded rod and is threadedly connected to the connecting plate 12. A rotating block 14 is fixedly connected to the end of the threaded rod 13. During the process of the plug 3 entering the base 1, the contact piece 4 on the plug 3 gradually moves downward into the base 1. After the plug 3 completes the limiting connection, rotating the rotating block 14 drives the threaded rod 13 to rotate, thereby causing the connecting plate 12 to move in the limiting groove, thus connecting the connecting plate 12. The connecting plate 12 drives the movable piece 11 to move and bring it closer to the contact piece 4. The movement of the movable piece 11 is always on the guide piece 401, and the two are in a connected state. Thus, the detector 2 is electrically connected through the path formed between the guide piece 401, the movable piece 11 and the contact piece 4, so that the detector 2 can be used normally. In the process of forming the path, the path between the movable piece 11 and the guide piece 401 is formed by the movable piece 11 gradually moving closer to the guide piece 401. Thus, neither the guide piece 401 nor the movable piece 11 will be deformed, and there will be no loosening due to the reduced deformation capacity caused by the traditional plug-in method.

[0026] Reference Figure 1-5 A pull rod 8 is slidably connected to the base 1. The pull rod 8 is fixedly connected to the connecting block 5. The pull rod 8 is located inside the spring 7. A pull block 9 is fixedly connected to the end of the pull rod 8. The pull block 9 is provided with an anti-slip rubber pad. When the detector 2 is removed, the rotating block 14 is rotated in the opposite direction to make the threaded rod 13 rotate in the opposite direction, so that the moving piece 11 can be separated from the guide piece 401. Then, the pull block 9 is pulled to drive the pull rod 8 to move the connecting block 5, so that the connecting block 5 is separated from the bayonet 6, so that the connecting block 5 no longer limits the connection of the plug 3. Thus, the detector 2 can be pulled out upwards, so that the plug 3 is pulled out of the base 1. The pull block 9 is released so that the connecting block 5 moves back to its original position under the reaction force of the spring 7. At this time, the detector 2 can be removed.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An electrical connection device for a relay base and its matching point-type probe, comprising a base (1) and a probe (2) arranged on the base (1), characterized in that: The detector (2) is provided with a plug (3), the plug (3) is provided with a contact piece (4), and the base (1) is provided with a guide piece (401). A connecting component is provided between the plug (3) and the base (1) to enhance the connection stability between the plug (3) and the base (1). The connecting component includes a connecting block (5) provided in the base (1). The plug (3) is provided with a bayonet (6) that is adapted to the connecting block (5). A spring (7) is fixedly connected between the connecting block (5) and the base (1).

2. The electrical connection device for a relay base and its matching point detector according to claim 1, characterized in that: A pull rod (8) is slidably connected in the base (1), and the pull rod (8) is fixedly connected to the connecting block (5). The pull rod (8) is located inside the spring (7).

3. The electrical connection device for a relay base and its matching point detector according to claim 2, characterized in that: The end of the pull rod (8) is fixedly connected to a pull block (9), and the pull block (9) is provided with an anti-slip rubber pad.

4. The electrical connection device for a relay base and its matching point detector according to claim 1, characterized in that: Both the plug (3) and the connecting block (5) are provided with bevels (10) at the same angle.

5. The electrical connection device for a relay base and its matching point detector according to claim 1, characterized in that: A movable piece (11) is slidably connected to the guide piece (401), and a connecting plate (12) is fixedly connected to the movable piece (11).

6. The electrical connection device for a relay base and its matching point detector according to claim 5, characterized in that: The base (1) has a limiting groove, and the connecting plate (12) is slidably connected in the limiting groove.

7. The electrical connection device for a relay base and its matching point detector according to claim 5, characterized in that: A threaded rod (13) is rotatably connected in the base (1). The threaded rod (13) is a bidirectional threaded rod. The threaded rod (13) is threadedly connected to the connecting plate (12). A rotating block (14) is fixedly connected to the end of the threaded rod (13).

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