Circuit connecting device for electrical installation of constructional engineering

Abstract

A circuit connecting device for electrical installation of constructional engineering relates to the technical field of electrical installation tools. The circuit connecting device aims to solve the problems that an existing circuit connecting device cannot reliably connect circuits of different specifications, clamping and fixing measures for the circuits are lacked, and virtual connection of the circuits is caused. The hexagonal wrench is rotated to drive the gear on the T-shaped rotating shaft to rotate, and then the gear drives the two racks to move relatively and transversely, so that the two telescopic pipes are relatively close to each other in the connecting sleeve until the closed end faces of the two telescopic pipes are in close contact with the two sides of the conducting strip, and communication of two cables of different specifications is achieved. At the moment, the bottoms of the pins penetrate through the through holes in the racks and then are inserted into the limiting blind holes in the outer surfaces of the corresponding connecting sleeves, and the two racks are locked and positioned; according to the utility model, two cables with different specifications are communicated and fixed, and the connecting device avoids virtual connection of the two cables, thereby greatly improving the stability of use. The utility model is suitable for the connection of electrical cables.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical installation tools, in particular to a line connection device for electrical installation in construction engineering. Background Art

[0002] A line can refer to a narrow road like a wire, an electric wire that conducts electric current, or a railway track. A large number of electrical line layouts are required in construction projects. During the laying of the lines, the lines need to be branched due to different functional needs. Therefore, electrical installation in construction projects is often accompanied by line connections, and it is not just a single connection of lines of the same specifications. That is, there are often connections between lines of different specifications and branch access to third-party lines.

[0003] When connecting existing electrical installation lines, workers need to connect them manually, and the steps are numerous, which greatly affects work efficiency. The existing line connection devices cannot reliably connect lines of different specifications, and lack clamping and fixing measures for the lines, resulting in the problem of circuit virtual connection. Utility Model Content

[0004] The utility model provides a line connection device for electrical installation in construction engineering to solve the problem that the existing line connection device cannot reliably connect lines of different specifications and lacks clamping and fixing measures for the lines, resulting in circuit virtual connection.

[0005] The utility model is a line connection device for electrical installation in construction engineering, which comprises a connection sleeve 1, a rack 4, a guide bar 5, a gear 6, a T-shaped rotating shaft 8, a conductive sheet 9, a locking bolt 10, a lower pressing clamping plate 11, a limit rod 12, an upper pressing clamping plate 13, a telescopic tube 14, a connecting rod 15 and a connecting block 16;

[0006] A conductive sheet 9 is embedded in the center of the interior of the connecting sleeve 1, a countersunk through hole is processed in the middle of the inner wall of the connecting sleeve 1, and the small-diameter end of the T-shaped rotating shaft 8 passes through the countersunk through hole on the inner wall of the connecting sleeve 1 and is inserted into the center hole of the gear 6, and the T-shaped rotating shaft 8 is fixedly connected to the gear 6 through a keyway. A guide strip 5 is respectively provided on the inner wall at both ends of the connecting sleeve 1 along the length direction, and a telescopic tube 14 is respectively inserted inside the two ends of the connecting sleeve 1, and the outer surface of each telescopic tube 14 is processed with a strip groove along the length direction. The strip groove on the telescopic tube 14 cooperates with the corresponding guide strip 5 inside the connecting sleeve 1 for sliding connection, and each telescopic tube 14 is provided with a strip groove. A connecting rod 15 is provided at the upper part of the outer end surface of the contraction tube 14, and a rack 4 is provided at the top of the connecting rod 15, and the two racks 4 are meshed with the gear 6 at the same time. An upper pressing plate 13 and a lower pressing plate 11 are provided in sequence from top to bottom inside each telescopic tube 14. The middle part of the upper surface of the upper pressing plate 13 is fixedly connected to the middle part of the inner wall of the telescopic tube 14 through a connecting block 16. The four corners of the upper pressing plate 13 and the four corners of the lower pressing plate 11 are respectively connected for relative sliding by a limiting rod 12. A threaded hole is processed at the center of the bottom of the telescopic tube 14, and a locking bolt 10 is provided inside the threaded hole. The top end of the locking bolt 10 contacts the outer surface of the lower pressing plate 11.

[0007] Furthermore, the inner end of the telescopic tube 14 is a closed end surface;

[0008] Furthermore, the conductive sheet 9, the telescopic tube 14, the connecting block 16, the lower pressing plate 11 and the upper pressing plate 13 are all made of brass;

[0009] Furthermore, the connecting sleeve 1, the conductive sheet 9 and the telescopic tube 14 are coaxially arranged;

[0010] Furthermore, a U-shaped through hole 18 is processed on the outer surface of both ends of the connecting sleeve 1, and the two U-shaped through holes 18 are symmetrically arranged;

[0011] Furthermore, a row of limiting blind holes 3 are respectively processed on the outer surfaces of both ends of the connecting sleeve 1, and the two rows of limiting blind holes 3 are relatively staggered;

[0012] Furthermore, a plurality of through holes 17 are evenly arranged in the middle of the upper surface of each rack 4 along the length direction;

[0013] Furthermore, a pin 2 is provided inside one of the through holes 17 on the rack 4;

[0014] Furthermore, the bottom of the pin 2 is inserted into the inner portion of the limiting blind hole 3 on the outer surface of the corresponding connecting sleeve 1;

[0015] Furthermore, the axial cross-sections of the lower pressing plate 11 and the upper pressing plate 13 are both arc-shaped; a hexagonal wrench 7 is fixed to the small-diameter end face of the T-shaped rotating shaft 8;

[0016] Furthermore, when in use, when connecting two cables of different diameters, first insert the end of the No. 1 connected cable into between the lower pressing clamp 11 and the upper pressing clamp 13 inside one of the telescopic tubes 14 of the device, and then rotate the locking bolt 10, and use the four corners of the upper pressing clamp 13 to slide relatively with the four corners of the lower pressing clamp 11 respectively through a limit rod 12 to achieve the goal of continuously applying an upward force to the lower pressing clamp 11 through the top of the locking bolt 10 until the end of the No. 1 connected cable is clamped by the lower pressing clamp 11 and the upper pressing clamp 13, and then insert the end of the No. 2 connected cable into between the lower pressing clamp 11 and the upper pressing clamp 13 inside the other telescopic tube 14 of the device, and repeat the above method, so that the end of the No. 2 connected cable can be clamped by the lower pressing clamp 11 and the upper pressing clamp 13 inside the other telescopic tube 14; thereby overcoming the problem of reliable clamping of cables of different specifications;

[0017] Finally, the operator rotates the hexagonal wrench 7 to drive the gear 6 on the T-shaped shaft 8 to rotate, and then uses a connecting rod 15 provided on the upper part of the outer end surface of each telescopic tube 14, and a rack 4 is provided on the top of the connecting rod 15, and the two racks 4 are meshed with the gear 6 at the same time, and a U-shaped limit bracket is provided on the outer surface of both ends of the telescopic tube 14, and the rack 4 is meshed with the gear 6 after passing through the U-shaped limit bracket; thereby, the two racks 4 are driven by the gear 6 to move relative to each other laterally, so that the two telescopic tubes 14 are relatively close to each other inside the connecting sleeve 1, until the closed end surfaces of the two telescopic tubes 14 are in close contact with both sides of the conductive sheet 9, so that the two cables of different specifications can be connected, and at this time, the bottom of the pin 2 is passed through the through hole 17 on the rack 4, and then inserted into the inside of the limit blind hole 3 on the outer surface of the corresponding connecting sleeve 1, so as to lock and position the two racks 4; thereby, the two cables of different specifications are connected and fixed, and this connection device avoids the phenomenon of virtual connection between the two cables, greatly improving the stability of use.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The utility model overcomes the shortcomings of the prior art. When connecting two cables with different diameters, the end of the No. 1 connected cable is first inserted between the lower pressure clamp and the upper pressure clamp inside one of the telescopic tubes of the device, and then the locking bolt is rotated, and the four corners of the upper pressure clamp are connected to the four corners of the lower pressure clamp by a limit rod respectively, so that an upward force is continuously applied to the lower pressure clamp by the top of the locking bolt until the end of the No. 1 connected cable is clamped by the lower pressure clamp and the upper pressure clamp, and then the end of the No. 2 connected cable is inserted between the lower pressure clamp and the upper pressure clamp inside the other telescopic tube of the device, and the above method is repeated, so that the end of the No. 2 connected cable can be clamped by the lower pressure clamp and the upper pressure clamp inside the other telescopic tube; thereby overcoming the problem of reliable clamping of cables of different specifications.

[0020] 2. The utility model overcomes the shortcomings of the prior art. When in use, the operator rotates the hexagonal wrench to drive the gear on the T-shaped rotating shaft to rotate, and then a connecting rod is provided on the upper part of the outer end surface of each telescopic tube, and a rack is provided on the top of the connecting rod, and the two racks are meshed with the gear at the same time, and a U-shaped limiting bracket is provided on the outer surface of both ends of the telescopic tube, and the rack meshes with the gear after passing through the U-shaped limiting bracket; thereby, the two racks are driven by the gear to move relative to each other laterally, and then the two telescopic tubes are relatively close to each other inside the connecting sleeve until the closed end surfaces of the two telescopic tubes are in close contact with the two sides of the conductive sheet, so that the two cables of different specifications can be connected, and at this time, the bottom of the pin is passed through the through hole on the rack and inserted into the inside of the limiting blind hole on the outer surface of the corresponding connecting sleeve to realize the locking and positioning of the two racks; thereby, the connection and fixation of the two cables of different specifications are realized, and this connecting device avoids the phenomenon of virtual connection between the two cables, thereby greatly improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a main cross-sectional view of a line connection device for electrical installation in construction engineering described in the utility model;

[0022] Figure 2 It is a top view of a gear rack transmission structure in a line connection device for electrical installation in a construction project described in the utility model;

[0023] Figure 3 The utility model is a top view of a connecting sleeve in a line connecting device for electrical installation in a construction project. DETAILED DESCRIPTION

[0024] Specific implementation method 1: Combination Figures 1 to 3The present embodiment is described. The line connection device for electrical installation in construction engineering described in the present embodiment comprises a connection sleeve 1, a rack 4, a guide bar 5, a gear 6, a T-shaped rotating shaft 8, a conductive sheet 9, a locking bolt 10, a lower pressing clamping plate 11, a limit rod 12, an upper pressing clamping plate 13, a telescopic tube 14, a connecting rod 15 and a connecting block 16;

[0025] A conductive sheet 9 is embedded in the center of the interior of the connecting sleeve 1, a countersunk through hole is processed in the middle of the inner wall of the connecting sleeve 1, and the small-diameter end of the T-shaped rotating shaft 8 passes through the countersunk through hole on the inner wall of the connecting sleeve 1 and is inserted into the center hole of the gear 6, and the T-shaped rotating shaft 8 is fixedly connected to the gear 6 through a keyway. A guide strip 5 is respectively provided on the inner wall at both ends of the connecting sleeve 1 along the length direction, and a telescopic tube 14 is respectively inserted inside the two ends of the connecting sleeve 1, and the outer surface of each telescopic tube 14 is processed with a strip groove along the length direction. The strip groove on the telescopic tube 14 cooperates with the corresponding guide strip 5 inside the connecting sleeve 1 for sliding connection, and each telescopic tube 14 is provided with a strip groove. A connecting rod 15 is provided at the upper part of the outer end surface of the contraction tube 14, and a rack 4 is provided at the top of the connecting rod 15, and the two racks 4 are meshed with the gear 6 at the same time. An upper pressing plate 13 and a lower pressing plate 11 are provided in sequence from top to bottom inside each telescopic tube 14. The middle part of the upper surface of the upper pressing plate 13 is fixedly connected to the middle part of the inner wall of the telescopic tube 14 through a connecting block 16. The four corners of the upper pressing plate 13 and the four corners of the lower pressing plate 11 are respectively connected for relative sliding by a limiting rod 12. A threaded hole is processed at the center of the bottom of the telescopic tube 14, and a locking bolt 10 is provided inside the threaded hole. The top end of the locking bolt 10 contacts the outer surface of the lower pressing plate 11.

[0026] The end of the second cable is then inserted into the other end of the second cable and the other end is clamped by the lower clamp 11 and the upper clamp 13. The clamp 13 is then retracted to allow the two ends of the cable to be retracted.

[0027] Finally, the operator rotates the hexagonal wrench 7 to drive the gear 6 on the T-shaped shaft 8 to rotate, and then uses a connecting rod 15 provided on the upper part of the outer end surface of each telescopic tube 14, and a rack 4 is provided on the top of the connecting rod 15, and the two racks 4 are meshed with the gear 6 at the same time, and a U-shaped limit bracket is provided on the outer surface of both ends of the telescopic tube 14, and the rack 4 is meshed with the gear 6 after passing through the U-shaped limit bracket; thereby, the two racks 4 are driven by the gear 6 to move relative to each other laterally, so that the two telescopic tubes 14 are relatively close to each other inside the connecting sleeve 1, until the closed end surfaces of the two telescopic tubes 14 are in close contact with both sides of the conductive sheet 9, so that the two cables of different specifications can be connected, and at this time, the bottom of the pin 2 is passed through the through hole 17 on the rack 4, and then inserted into the inside of the limit blind hole 3 on the outer surface of the corresponding connecting sleeve 1, so as to lock and position the two racks 4; thereby, the two cables of different specifications are connected and fixed, and this connection device avoids the phenomenon of virtual connection between the two cables, greatly improving the stability of use.

[0028] Specific implementation method 2: Combination Figures 1 to 3 This embodiment is described as a further limitation of the line connection device described in the first embodiment. In this embodiment, a line connection device for electrical installation in a construction project is described, and the inner end of the telescopic tube 14 is a closed end surface.

[0029] Specific implementation method three: Combination Figures 1 to 3 To explain this embodiment, this embodiment is a further limitation of the line connection device described in the specific embodiment 1. This embodiment describes a line connection device for electrical installation in a construction project, wherein the conductive sheet 9, telescopic tube 14, connecting block 16, lower pressure clamp 11 and upper pressure clamp 13 are all made of brass.

[0030] Specific implementation method four: Combination Figures 1 to 3 This embodiment is described as a further limitation of the line connection device described in the third embodiment. This embodiment describes a line connection device for electrical installation in a construction project, wherein the connecting sleeve 1, the conductive sheet 9 and the telescopic tube 14 are coaxially arranged.

[0031] Specific implementation method five: Combination Figures 1 to 3 This embodiment is described. This embodiment is a further limitation of the line connection device described in the fourth embodiment. In this embodiment, a line connection device for electrical installation in a construction project is described. The outer surfaces of both ends of the connecting sleeve 1 are respectively processed with a U-shaped through hole 18, and the two U-shaped through holes 18 are symmetrically arranged.

[0032] In this specific embodiment, the arrangement is such that when the telescopic tube 14 slides inside the connecting sleeve 1 , the locking bolt 10 on the telescopic tube 14 moves laterally in the U-shaped through hole 18 on the connecting sleeve 1 .

[0033] Specific implementation method six: Combination Figures 1 to 3 To explain this embodiment, this embodiment is a further limitation of the line connection device described in the specific embodiment 1. In this embodiment, a line connection device for electrical installation in a construction project is described, and a row of limiting blind holes 3 are respectively processed on the outer surfaces of both ends of the connecting sleeve 1, and the two rows of limiting blind holes 3 are relatively staggered.

[0034] Specific implementation method seven: Combination Figures 1 to 3 To explain this embodiment, this embodiment is a further limitation of the line connection device described in specific embodiment six. This embodiment describes a line connection device for electrical installation in a construction project, in which a plurality of through holes 17 are evenly arranged in the middle of the upper surface of each rack 4 along the length direction.

[0035] Specific implementation method eight: Combination Figures 1 to 3 This embodiment is described as a further limitation of the line connection device described in the seventh embodiment. In this embodiment, a line connection device for electrical installation in a construction project is described, and a pin 2 is provided inside one of the through holes 17 on the rack 4.

[0036] Specific implementation method nine: Combination Figures 1 to 3 To explain this embodiment, this embodiment is a further limitation of the line connection device described in the eighth specific embodiment. In this embodiment, a line connection device for electrical installation in a construction project is described, and the bottom of the pin 2 is inserted into the inside of the limiting blind hole 3 on the outer surface of the corresponding connecting sleeve 1.

[0037] Specific implementation method ten: Combination Figures 1 to 3 To explain this embodiment, this embodiment is a further limitation of the line connection device described in the specific embodiment 1. This embodiment describes a line connection device for electrical installation in a construction project, wherein the axial cross-sections of the lower pressure plate 11 and the upper pressure plate 13 are both arc-shaped; and a hexagonal wrench 7 is fixed to the small-diameter end face of the T-shaped rotating shaft 8.

[0038] How it works

[0039] When in use, when two cables with different diameters are connected, first the end of the No. 1 connected cable is inserted between the lower pressing clamp 11 and the upper pressing clamp 13 inside one of the telescopic tubes 14 of the device, and then the locking bolt 10 is rotated, and the four corners of the upper pressing clamp 13 are connected to the four corners of the lower pressing clamp 11 by a limit rod 12 for relative sliding connection, so that an upward force is continuously applied to the lower pressing clamp 11 by the top of the locking bolt 10 until the end of the No. 1 connected cable is clamped by the lower pressing clamp 11 and the upper pressing clamp 13, and then the end of the No. 2 connected cable is inserted between the lower pressing clamp 11 and the upper pressing clamp 13 inside the other telescopic tube 14 of the device, and the above method is repeated, so that the end of the No. 2 connected cable can be clamped by the lower pressing clamp 11 and the upper pressing clamp 13 inside the other telescopic tube 14; thereby overcoming the problem of reliable clamping of cables of different specifications;

[0040] Finally, the operator rotates the hexagonal wrench 7 to drive the gear 6 on the T-shaped shaft 8 to rotate, and then uses a connecting rod 15 provided on the upper part of the outer end surface of each telescopic tube 14, and a rack 4 is provided on the top of the connecting rod 15, and the two racks 4 are meshed with the gear 6 at the same time, and a U-shaped limit bracket is provided on the outer surface of both ends of the telescopic tube 14, and the rack 4 is meshed with the gear 6 after passing through the U-shaped limit bracket; thereby, the two racks 4 are driven by the gear 6 to move relative to each other laterally, so that the two telescopic tubes 14 are relatively close to each other inside the connecting sleeve 1, until the closed end surfaces of the two telescopic tubes 14 are in close contact with both sides of the conductive sheet 9, so that the two cables of different specifications can be connected, and at this time, the bottom of the pin 2 is passed through the through hole 17 on the rack 4, and then inserted into the inside of the limit blind hole 3 on the outer surface of the corresponding connecting sleeve 1, so as to lock and position the two racks 4; thereby, the two cables of different specifications are connected and fixed, and this connection device avoids the phenomenon of virtual connection between the two cables, greatly improving the stability of use.

Claims

1. A line connection device for electrical installation in construction engineering, characterized in that: It comprises a connecting sleeve (1), a rack (4), a guide bar (5), a gear (6), a T-shaped rotating shaft (8), a conductive sheet (9), a locking bolt (10), a lower pressing clamping plate (11), a limiting rod (12), an upper pressing clamping plate (13), a telescopic tube (14), a connecting rod (15) and a connecting block (16); A conductive sheet (9) is embedded in the center of the interior of the connecting sleeve (1), a countersunk through hole is processed in the middle of the inner wall of the connecting sleeve (1), and the small-diameter end of the T-shaped rotating shaft (8) passes through the countersunk through hole on the inner wall of the connecting sleeve (1) and is inserted into the center hole of the gear (6), and the T-shaped rotating shaft (8) is fixedly connected to the gear (6) through a keyway. A guide strip (5) is respectively provided on the inner wall at both ends of the connecting sleeve (1) along the length direction, and a telescopic tube (14) is respectively inserted inside the two ends of the connecting sleeve (1), and the outer surface of each telescopic tube (14) is processed with a strip groove along the length direction, and the strip groove on the telescopic tube (14) is slidably connected with the corresponding guide strip (5) inside the connecting sleeve (1), and each telescopic tube ( A connecting rod (15) is provided on the upper part of the outer end surface of the telescopic tube (14), a rack (4) is provided on the top end of the connecting rod (15), and the two racks (4) are meshed with the gear (6) at the same time. An upper pressing plate (13) and a lower pressing plate (11) are provided in sequence from top to bottom inside each telescopic tube (14), the middle part of the upper surface of the upper pressing plate (13) is fixedly connected to the middle part of the inner wall of the telescopic tube (14) through a connecting block (16), the four corners of the upper pressing plate (13) and the four corners of the lower pressing plate (11) are respectively connected to each other in a relatively sliding manner through a limiting rod (12), a threaded hole is processed at the center of the bottom of the telescopic tube (14), a locking bolt (10) is provided inside the threaded hole, and the top end of the locking bolt (10) contacts the outer surface of the lower pressing plate (11).

2. A line connection device for electrical installation in construction engineering according to claim 1, characterized in that: The inner end of the telescopic tube (14) is a closed end surface.

3. A line connection device for electrical installation in construction engineering according to claim 1, characterized in that: The conductive sheet (9), telescopic tube (14), connecting block (16), lower pressing clamping plate (11) and upper pressing clamping plate (13) are all made of brass.

4. A line connection device for electrical installation in construction engineering according to claim 3, characterized in that: The connecting sleeve (1), the conductive sheet (9) and the telescopic tube (14) are coaxially arranged.

5. A line connection device for electrical installation in construction engineering according to claim 4, characterized in that: A U-shaped through hole (18) is processed on the outer surface of both ends of the connecting sleeve (1), and the two U-shaped through holes (18) are symmetrically arranged.

6. A line connection device for electrical installation in construction engineering according to claim 1, characterized in that: A row of limiting blind holes (3) is processed on the outer surfaces of both ends of the connecting sleeve (1), and the two rows of limiting blind holes (3) are arranged in a relatively staggered manner.

7. A line connection device for electrical installation in construction engineering according to claim 6, characterized in that: A plurality of through holes (17) are evenly arranged in the middle of the upper surface of each rack (4) along the length direction.

8. A line connection device for electrical installation in construction engineering according to claim 7, characterized in that: A pin (2) is arranged inside one of the through holes (17) on the rack (4).

9. A line connection device for electrical installation in construction engineering according to claim 8, characterized in that: The bottom of the pin (2) is inserted into the interior of the limiting blind hole (3) on the outer surface of the corresponding connecting sleeve (1).

10. A line connection device for electrical installation in construction engineering according to claim 1, characterized in that: The axial cross-sections of the lower pressing clamp (11) and the upper pressing clamp (13) are both arc-shaped; and a hexagonal wrench (7) is fixed to the small-diameter end face of the T-shaped rotating shaft (8).

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