A pre-warning system for security and weak current engineering

Abstract

This invention provides an early warning system for security and low-voltage electrical engineering, belonging to the technical field of security and low-voltage electrical engineering. It includes a base plate with bolts installed on its sides, a housing mounted on the lower end of the base plate, and a smoke detector body installed at the lower end of the base plate, inside the housing. The base plate and housing are connected via a connecting module. This invention solves the problem that existing early warning systems for security and low-voltage electrical engineering fix the device to the wall or ceiling with bolts, requiring complete removal for maintenance, which is very inconvenient.

Description

Technical Field

[0001] This invention belongs to the field of security and low-voltage electrical engineering technology, specifically relating to an early warning system for security and low-voltage electrical engineering. Background Technology

[0002] Security systems aim to maintain public safety and utilize security products and other related products to form intrusion alarm systems, video surveillance systems, access control systems, BSV LCD video wall systems, access control and fire protection systems, explosion-proof security inspection systems, etc.; or electronic systems or networks composed of these systems as subsystems or integrated together. Smoke detectors are also an important component of security systems.

[0003] Existing technology CN220569248U discloses an early warning device for security and low-voltage electrical engineering, including a contact body. The bottom of the contact body is fixedly connected to a connecting body by fastening screws. A smoke detector is integrally fixedly connected to the bottom of the connecting body. Holes are opened on both sides of the surface of the smoke detector. A threaded post is integrally injection molded at the center of the bottom of the smoke detector. A sleeve is fitted on the surface of the threaded post. Connecting blocks are fixedly connected to both sides of the sleeve. A push plate is movably connected to the side of the connecting block away from the sleeve. A moving block is movably connected to the top of the push plate through a movable shaft. A baffle is fixedly connected to the opposite side of the moving block. The top of the moving block is slidably connected to the bottom of the connecting body. A nut is threadedly connected to the bottom of the surface of the threaded post.

[0004] This warning device can block and protect the smoke detection hole of the smoke alarm, making it less prone to clogging. However, the device is fixed to the top of the wall with bolts, and it needs to be completely removed for maintenance, which is very inconvenient. Summary of the Invention

[0005] This invention provides an early warning system for security and low-voltage electrical engineering projects. Its purpose is to solve the problem that existing early warning systems for security and low-voltage electrical engineering projects are fixed to the top of the wall with bolts, and the entire system needs to be removed for maintenance, which is very inconvenient.

[0006] This invention provides an early warning system for security and low-voltage electrical engineering, comprising a base plate, bolts installed on the side of the base plate, a housing installed at the lower end of the base plate, and a smoke alarm body installed at the lower end of the base plate and inside the housing. The base plate and the housing are connected by a connecting module.

[0007] Furthermore, the connecting module includes a connecting piece one and a connecting piece two, which are mirror images of each other;

[0008] Connecting unit one, which has two pairs, includes a fitting tube and an assembly block. One end of the fitting tube is fixedly connected to a circle one, one side of the circle one is fixedly connected to a constraint ring, the outer side of the circle one is screwed to a rotating ring, the outer side of the rotating ring is fixedly connected to a rotating tube, one side of the rotating tube is fixedly connected to several magnets one, and a magnet two is installed between each adjacent pair of magnets. One side of the assembly block is fixedly connected to several magnets three, and a magnet four is installed between each adjacent pair of magnets three. A fitting post one is fixedly connected to the center of one side of the assembly block.

[0009] Connecting unit two, the connecting unit two is provided with a pair, the connecting unit two includes a square piece and a support plate, one side of the square piece is fixedly connected to the embedding post two, one end of the embedding post two is fixedly connected to the embedding end, the inner surface of the support plate is fixedly connected to the outer tube, one end of the outer tube is fixedly connected to the circle two, the inner surface of the circle two is fixedly connected to the ring-shaped stop piece, and the outer side of the stop piece is threaded to the threaded tube;

[0010] Several guide posts are fixedly connected to the side wall of the second connecting piece, and a guide strip is fixedly connected to the side wall of the first connecting piece. Several guide openings are reserved on the guide strip, and the guide openings and corresponding guide posts are movably connected.

[0011] Furthermore, a second connector is installed on one wall of the second connecting piece, and a first connector is installed on one wall of the first connecting piece. The opposite sides of the first connector and the second connector are interlocked.

[0012] Furthermore, several of the second magnets are fixedly connected to one side of the rotating tube, several of the fourth magnets are fixedly connected to one side of the assembly block, the first and fourth magnets are attracted to each other on their opposite walls, and the third magnet and the second magnet are attracted to each other on their opposite walls.

[0013] Furthermore, two pairs of arrows are equally spaced on the outer side of the rotating tube, and two pairs of marks are equally spaced on the outer side of the insert tube. When the tube is engaged, the arrows point towards the marks.

[0014] Furthermore, the inner surface of the insert tube has several round holes, each of which is screwed with a steel ball. The steel balls are arranged in two rows. Both sides of the insert post have several assembly ports, each of which is screwed with a steel ball.

[0015] Furthermore, the other end of each of the said insert pipes is fixedly connected to the outer side of the connecting piece one, and the other side of each of the said assembly blocks is fixedly connected to the outer side of the connecting piece two.

[0016] Furthermore, each of the square pieces is fixedly connected to both sides of the connecting piece one, and a reinforcing piece is installed between each of the square pieces and both sides of the connecting piece one. Each of the bearing plates is fixedly connected to both sides of the connecting piece two, and a wedge-shaped piece is installed between each of the bearing plates and both sides of the connecting piece two.

[0017] Furthermore, several protruding rings are fixedly connected to the outer peripheral surface of the interlocking end, several constraint openings are reserved inside the stop piece, several concave openings are reserved on the outer side of the stop piece, and threaded openings are reserved on the outer peripheral surface of the stop piece.

[0018] Furthermore, one side of the threaded tube is fixedly connected to a circle three, one side of the circle three is fixedly connected to a plurality of connecting posts, and one end of the plurality of connecting posts is fixedly connected to a handle.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The present invention, through the installation of the connecting module, allows for the rapid disassembly and assembly of the base plate and the outer shell, so as to perform maintenance or replacement of the smoke alarm body inside, greatly improving its practicality.

[0021] 2. In application, connecting piece one and connecting piece two are connected to each other, and the connector one installed on connecting piece one and the connector two installed on connecting piece two are interlocked to achieve the purpose of pre-connection. After connector one and connector two are interlocked, each connecting unit is connected to each other, and then connecting piece one and connecting piece two can be fastened. When connecting piece one and connecting piece two are connected, the guide bar is inserted into the guide opening. Since only one row of guide bars is installed and fixed to one side of connecting piece two, and only one guide bar is installed and fixed to one side of connecting piece one, the installed guide bar is... Aligning with one side of the guide strip, connecting piece one and connecting piece two are quickly connected. The insert pipe fixed to connecting piece one and the insert holder fixed to connecting piece two are then inserted into each other. As the insert holder one is inserted into the insert pipe, the steel ball rotates in the assembly opening, and the steel ball rotates in the round hole. The steel ball and a pair of steel balls touch each other. The contact between the steel balls and the steel balls reduces resistance, making the insertion of the insert holder one into the insert pipe smoother and easier to use. Upon connection, each magnet one attracts its corresponding magnet four, and each magnet two attracts its corresponding magnet three, thus attracting each other. This design strengthens the connection between connecting piece one and connecting piece two, with the arrow pointing towards the mark. When disassembling, simply rotate the rotating tube, causing it to pull the rotating ring around the outside of circle one. At this point, the arrow rotates to the mark adjacent to the previously corresponding mark, aligning each magnet one with its corresponding magnet three, and each magnet two with its corresponding magnet four. Because magnets have mutual repulsion, the rotating tube and the assembly block repel each other. With both pairs of connecting units repelling each other, disassembly of connecting piece one and connecting piece two is achieved by inserting the second connector into the stop piece. Make the outer tube clamp the two fittings together. At this moment, the constraint opening is facing the protruding ring and they are compatible and interlocked. Attach the threaded tube clamp to the outside of the stop piece. Rotate the handle to pull the connecting column to rotate. The connecting column pulls the ring three to rotate, and then pulls the threaded tube to rotate. The radius of the stop piece is decreasing. The threaded tube and the stop piece are compatible. Due to the concave opening, the threaded tube can retract the stop piece when rotating. Because the constraint opening is clamped on the protruding ring, the stop piece slowly retracts. The connection between the first and second connecting pieces becomes increasingly secure. When disassembling, simply rotate the handle in the opposite direction to complete the disassembly. The operation is very convenient.

[0022] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the connection module structure according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the disassembly structure of the connecting module in an embodiment of the present invention. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the disassembly structure of the connecting module in an embodiment of the present invention. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the disassembly structure of the connecting unit in an embodiment of the present invention. Figure 1 ;

[0029] Figure 6 This is a schematic diagram of the disassembly structure of the connecting unit in an embodiment of the present invention. Figure 2 ;

[0030] Figure 7 This is a schematic cross-sectional view of the two parts of the connecting unit in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the disassembled structure of the connecting unit two according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic cross-sectional view of the outer tube portion according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the stop plate structure according to an embodiment of the present invention;

[0034] Reference numerals: 1. Base plate; 2. Bolt; 3. Outer shell; 4. Connecting module; 41. Connecting unit one; 4101. Inserting pipe; 4102. Circle one; 4103. Constraint ring; 4104. Mark; 4105. Steel ball; 4106. Round hole; 4107. Rotating ring; 4108. Rotating tube; 4109. Arrow; 4110. Magnet one; 4111. Magnet two; 4112. Inserting post one; 4113. Assembly block; 4114. Steel ball; 4115. Assembly port; 4116. Magnet three; 4117. Magnet four; 42. Connecting unit two; 4 201. Square plate; 4202. Inserting post two; 4203. Inserting end; 4204. Circle two; 4205. Stop plate; 4206. Outer tube; 4207. Threaded tube; 4208. Circle three; 4209. Connecting post; 4210. Bearing plate; 4211. Wedge plate; 4212. Handle; 4213. Protruding ring; 4214. Constraint opening; 4215. Threaded opening; 4216. Concave opening; 4217. Reinforcing plate; 43. Connecting plate one; 44. Guide strip; 45. Guide post; 46. Connecting plate two; 47. Guide opening; 48. Joint one; 49. Joint two. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] Reference Figure 1-10 This invention proposes an early warning system for security and low-voltage electrical engineering, comprising a base plate 1, bolts 2 installed on the side of the base plate 1, a housing 3 installed at the lower end of the base plate 1, and a smoke alarm body installed at the lower end of the base plate 1 and inside the housing 3. The base plate 1 and the housing 3 are connected by a connecting module 4.

[0037] With the installation of the connecting module 4, the base plate 1 and the outer shell 3 can be quickly disassembled and assembled, so as to perform maintenance or replacement on the main body of the smoke alarm inside, which greatly improves its practicality.

[0038] Reference Figure 2-10 The connecting module 4 includes a first connecting piece 43 and a second connecting piece 46, which are mirror images of each other.

[0039] Connecting unit 1 41, which has two pairs of components, includes insert tube 4101 and assembly block 4113. One end of insert tube 4101 is fixed to circle 1 4102. One side of circle 1 4102 is fixed to constraint ring 4103. The outer side of circle 1 4102 is screwed to rotating ring 4107. The outer side of rotating ring 4107 is fixed to rotating tube 4108. One side of rotating tube 4108 is fixed to several magnets 1 4110. A magnet 2 4111 is installed between each pair of adjacent magnets 1 4110. One side of assembly block 4113 is fixed to several magnets 3 4116. A magnet 4117 is installed between each pair of adjacent magnets 3 4116. Inserting post 1 4112 is fixed to the center of one side of assembly block 4113.

[0040] Connecting unit 2 42, which is equipped with a pair of square pieces 4201 and a support plate 4210. One side of the square piece 4201 is fixed to the second insert post 4202, and one end of the second insert post 4202 is fixed to the insert end 4203. The inner surface of the support plate 4210 is fixed to the outer tube 4206, and one end of the outer tube 4206 is fixed to the second circle 4204. The inner surface of the second circle 4204 is fixed to the circular stop piece 4205, and the outer side of the stop piece 4205 is threaded to the threaded tube 4207.

[0041] Reference Figure 2-4 A connector 49 is installed on one wall of connecting piece 2 46, and a connector 48 is installed on one wall of connecting piece 1 43. The opposite sides of connector 1 48 and connector 2 49 are interlocked. When connecting piece 1 43 and connecting piece 2 46 are connected, connector 1 48 installed on connecting piece 1 43 and connector 2 49 installed on connecting piece 2 46 are interlocked to achieve the purpose of pre-connection. After connector 1 48 and connector 2 49 are interlocked, each connecting unit 1 41 and each connecting unit 2 42 are connected to each other, and then connecting piece 1 43 and connecting piece 2 46 can be fastened.

[0042] Reference Figure 2-4 Several guide posts 45 are fixedly connected to the side wall of the connecting piece 2 46, and a guide strip 44 is fixedly connected to the side wall of the connecting piece 1 43. Several guide openings 47 are reserved on the guide strip 44. The guide openings 47 and the corresponding guide posts 45 are movably connected. When the connecting piece 1 43 is connected to the connecting piece 2 46, the guide posts 45 are embedded into the guide openings 47. Since only one row of guide posts 45 is installed and fixed to one side of the connecting piece 2 46, and only one guide strip 44 is installed and fixed to one side of the connecting piece 1 43, the installed guide posts 45 and one side of the guide strip 44 are aligned during connection so that the connecting piece 1 43 and the connecting piece 2 46 can be quickly connected.

[0043] Reference Figure 2-6Several magnets 4111 are fixedly connected to one side of the rotating tube 4108, and several magnets 4117 are fixedly connected to one side of the assembly block 4113. The opposite walls of magnets 4110 and 4117 attract each other, and magnets 4116 and 4111 attract each other. When connected, each magnet 4110 attracts each corresponding magnet 4117, and each magnet... Each of the two 4111 magnets is attracted to its corresponding magnet 4116. The attraction between them strengthens the connection between the first 43 and the second 46. Rotating the magnets allows each of the two 4111 magnets to face its corresponding magnet 4117. Because magnets have mutual repulsion properties, the rotating tube 4108 and the assembly block 4113 are mutually repulsive. When both pairs of connecting units 41 are mutually repulsive, it is possible to disassemble the first 43 and the second 46.

[0044] Reference Figure 2-6 Two pairs of arrows 4109 are evenly spaced on the outer side of the rotating tube 4108, and two pairs of marks 4104 are evenly spaced on the outer side of the insert tube 4101. When the tube is engaged, the arrows 4109 point at the marks 4104, which can indicate the position of the rotating tube 4108 and the insert tube 4101, making the position adjustment between magnet one 4110, magnet two 4111, magnet three 4116 and magnet four 4117 more precise.

[0045] Reference Figure 2-6 The inner surface of the insert pipe 4101 has several round holes 4106, and steel balls 4105 are screwed into each of the round holes 4106. The steel balls 4105 are evenly divided into two rows. Several assembly ports 4115 are reserved on both sides of the insert post 4112, and steel balls 4114 are screwed into each of the assembly ports 4115. When the insert post 4112 is inserted into the insert pipe 4101, the steel balls 4114 rotate in the assembly ports 4115, and the steel balls 4105 rotate in the round holes 4106. The steel balls 4114 and a pair of steel balls 4105 touch each other. The contact between the steel balls 4105 and the steel balls 4114 can reduce the obstruction effect, making the insertion post 4112 more smoothly inserted into the insert pipe 4101 and more convenient to use.

[0046] Reference Figure 2-6 The other end of each insert pipe 4101 is fixed to the outside of the connecting piece 43, and the other side of each assembly block 4113 is fixed to the outside of the connecting piece 46, so as to insert the insert pipe 4101 fixed to the connecting piece 43 and the insert post 4112 fixed to the connecting piece 46 into each other.

[0047] Reference Figure 2-4 and Figure 7-10Each square piece 4201 is fixed to both sides of the connecting piece 43. A reinforcing piece 4217 is installed between each square piece 4201 and both sides of the connecting piece 43. Each bearing plate 4210 is fixed to both sides of the connecting piece 46. A wedge-shaped piece 4211 is installed between each bearing plate 4210 and both sides of the connecting piece 46. The reinforcing piece 4217 can enhance the assembly of the square piece 4201, and the wedge-shaped piece 4211 can enhance the assembly of the bearing plate 4210.

[0048] Reference Figure 2-4 and Figure 7-10 Several protruding rings 4213 are fixedly connected to the outer peripheral surface of the interlocking end 4203. Several constraint openings 4214 are reserved inside the stop piece 4205, several concave openings 4216 are reserved on the outer side of the stop piece 4205, and a threaded opening 4215 is reserved on the outer peripheral surface of the stop piece 4205. Due to the installation of the concave openings 4216, the threaded tube 4207 can retract the stop piece 4205 when it is rotated. In addition, since the constraint openings 4214 and the protruding rings 4213 are compatible with each other and can be interlocked, the stop piece 4205 slowly retracts, and the connection between the connecting piece 1 43 and the connecting piece 2 46 becomes more and more secure.

[0049] Reference Figure 2-4 and Figure 7-10 One side of the threaded tube 4207 is fixedly connected to a circle 4208, one side of the circle 4208 is fixedly connected to several connecting posts 4209, and one end of the connecting posts 4209 is fixedly connected to a handle 4212. By rotating the handle 4212, the connecting posts 4209 are pulled to rotate, and the connecting posts 4209 pull the circle 4208 to rotate, which in turn pulls the threaded tube 4207 to rotate.

[0050] The specific implementation method is as follows: During use, connecting piece 1 43 and connecting piece 2 46 are connected to each other, and the connector 1 48 installed on connecting piece 1 43 and the connector 2 49 installed on connecting piece 2 46 are interlocked to achieve the purpose of pre-connection. After the connector 1 48 and connector 2 49 are interlocked, each connecting unit 1 41 and each connecting unit 2 42 are connected to each other, and then connecting piece 1 43 and connecting piece 2 46 can be fastened. When connecting piece 1 43 and connecting piece 2 46 are connected, the guide post 45 is embedded into the guide opening 47. Since only one row of guide posts 45 is installed and fixed to one side of connecting piece 2 46, and only one guide strip 44 is installed and fixed to one side of connecting piece 1 43, during connection, the installed guide post 45 and guide strip 47 are connected to each other. One side of the guide bar 44 faces each other to quickly connect the connecting piece 1 43 and the connecting piece 2 46. The insert tube 4101 fixed to the connecting piece 1 43 and the insert post 4112 fixed to the connecting piece 2 46 are then inserted into each other. As the insert post 4112 is inserted into the insert tube 4101, the steel ball 4114 rotates in the assembly opening 4115, and the steel ball 4105 rotates in the round hole 4106. The steel ball 4114 and a pair of steel balls 4105 touch each other. The contact between the steel balls 4105 and the steel ball 4114 reduces resistance, allowing the insert post 4112 to be inserted into the insert tube 4101 more smoothly and conveniently. During connection, each magnet 4110 is attracted to its corresponding magnet 4117. Each magnet 4111 (secondary) attracts its corresponding magnet 4116 (third) to strengthen the connection between connecting piece 43 (first) and connecting piece 46 (secondary). Arrow 4109 points towards mark 4104. During disassembly, simply rotate the rotating tube 4108, causing the rotating ring 4107 to rotate around the outside of circle 4102. Arrow 4109 rotates to the mark 4104 adjacent to the previously corresponding mark 4104, allowing each magnet 4110 (first) to face its corresponding magnet 4116 (third) and each magnet 4111 (secondary) to face its corresponding magnet 4117 (fourth). Because magnets repel each other, the rotating tube 4108 and the... The blocks 4113 are mutually exclusive. When both pairs of connecting units 41 are mutually exclusive, in order to disassemble connecting piece 43 and connecting piece 46, the inserting post 4202 is inserted into the stop piece 4205, and the outer tube 4206 clamps the inserting post 4202. At this time, the constraint opening 4214 faces the protruding ring 4213 and they are compatible and interlocked. The threaded tube 4207 is clamped to the outside of the stop piece 4205. Rotating the handle 4212 pulls the connecting post 4209 to rotate. The connecting post 4209 pulls the ring 4208 to rotate, and then pulls the threaded tube 4207 to rotate. The radius of the stop piece 4205 is in a decreasing structure. The threaded tube 4207 and the stop piece 4205 are compatible with each other. Due to the installation of the concave opening 4216,The screw thread tube 4207 allows the stop plate 4205 to retract as it is rotated. Because the restraint port 4214 is clamped onto the protruding ring 4213, the stop plate 4205 gradually retracts, and the connection between the connecting plate 1 43 and the connecting plate 2 46 becomes increasingly secure. Disassembly can be completed by rotating the handle 4212 in reverse, facilitating the inspection or replacement of the smoke alarm. The operation is very convenient.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An early warning system for security and low-voltage electrical engineering, comprising a base plate (1), bolts (2) mounted on the side of the base plate (1), and a housing (3) mounted on the lower end of the base plate (1), characterized in that, The smoke alarm body is installed at the lower end of the base plate (1) and inside the outer shell (3). The base plate (1) and the outer shell (3) are connected by a connecting module (4). The connecting module (4) includes a first connecting piece (43) and a second connecting piece (46), which are mirror images of each other; Connecting unit one (41), the connecting unit one (41) is provided with two pairs, the connecting unit one (41) includes a fitting tube (4101) and an assembly block (4113), one end of the fitting tube (4101) is fixedly connected to a circle one (4102), one side of the circle one (4102) is fixedly connected to a constraint ring (4103), the outer side of the circle one (4102) is screwed to a rotating ring (4107), the outer side of the rotating ring (4107) is fixedly connected to a rotating tube (4103). 108), a plurality of magnets 1 (4110) are fixedly connected to one side of the rotating tube (4108), and magnets 2 (4111) are installed between adjacent pairs of magnets 1 (4110). A plurality of magnets 3 (4116) are fixedly connected to one side of the assembly block (4113), and magnets 4 (4117) are installed between adjacent pairs of magnets 3 (4116). A connecting post 1 (4112) is fixedly connected to the center of one side of the assembly block (4113). Connecting unit two (42), the connecting unit two (42) is equipped with a pair, the connecting unit two (42) includes a square piece (4201) and a support plate (4210), one side of the square piece (4201) is fixedly connected to the second insert post (4202), one end of the second insert post (4202) is fixedly connected to the insert end (4203), the inner surface of the support plate (4210) is fixedly connected to the outer tube (4206), one end of the outer tube (4206) is fixedly connected to the second circle (4204), the inner surface of the second circle (4204) is fixedly connected to the ring-shaped stop piece (4205), and the outer side of the stop piece (4205) is threaded to the threaded tube (4207). Several guide posts (45) are fixedly connected to the side wall of the second connecting piece (46), and a guide strip (44) is fixedly connected to the side wall of the first connecting piece (43). Several guide openings (47) are reserved on the guide strip (44), and the guide openings (47) and the corresponding guide posts (45) are movably connected.

2. The early warning system for security and low-voltage electrical engineering according to claim 1, characterized in that: A connector 2 (49) is installed on one wall of the connecting piece 2 (46), and a connector 1 (48) is installed on one wall of the connecting piece 1 (43). The connector 1 (48) and the connector 2 (49) are interlocked on opposite sides.

3. The early warning system for security and low-voltage electrical engineering according to claim 1, characterized in that: Several of the second magnets (4111) are fixed to one side of the rotating tube (4108), several of the fourth magnets (4117) are fixed to one side of the assembly block (4113), the first magnet (4110) and the fourth magnet (4117) are attracted to each other on their opposite walls, and the third magnet (4116) and the second magnet (4111) are attracted to each other on their opposite walls.

4. The early warning system for security and low-voltage electrical engineering according to claim 1, characterized in that: Two pairs of arrows (4109) are equally spaced on the outer side of the rotating tube (4108), and two pairs of marks (4104) are equally spaced on the outer side of the insert tube (4101). When the tube is engaged, the arrows (4109) are aligned with the marks (4104).

5. The early warning system for security and low-voltage electrical engineering according to claim 1, characterized in that: The inner surface of the insert tube (4101) has several round holes (4106) pre-drilled, and steel balls (4105) are screwed into each of the round holes (4106). The steel balls (4105) are divided into two rows. Several assembly ports (4115) are pre-drilled on both sides of the insert post (4112), and steel balls (4114) are screwed into each of the assembly ports (4115).

6. The early warning system for security and low-voltage electrical engineering according to claim 1, characterized in that: The other end of each of the said insert pipes (4101) is fixed to the outside of the connecting piece one (43), and the other side of each of the said assembly blocks (4113) is fixed to the outside of the connecting piece two (46).

7. The early warning system for security and low-voltage electrical engineering according to claim 1, characterized in that: Each of the square pieces (4201) is fixed to both sides of the connecting piece one (43), and a reinforcing piece (4217) is installed between each of the square pieces (4201) and the two sides of the connecting piece one (43). Each of the bearing plates (4210) is fixed to both sides of the connecting piece two (46), and a wedge-shaped piece (4211) is installed between each of the bearing plates (4210) and the two sides of the connecting piece two (46).

8. The early warning system for security and low-voltage electrical engineering according to claim 1, characterized in that: Several protrusions (4213) are fixedly connected to the outer peripheral surface of the insert end (4203), several constraint openings (4214) are reserved inside the stop piece (4205), several concave openings (4216) are reserved on the outer side of the stop piece (4205), and threaded openings (4215) are reserved on the outer peripheral surface of the stop piece (4205).

9. The early warning system for security and low-voltage electrical engineering according to claim 1, characterized in that: One side of the threaded tube (4207) is fixedly connected to a circle three (4208), one side of the circle three (4208) is fixedly connected to a plurality of connecting posts (4209), and one end of the plurality of connecting posts (4209) is fixedly connected to a handle (4212).

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