Unbalance self-expanding wire leading piece adaptive to three-way wire pipe
By designing an unbalanced self-extensioning lead wire assembly adapted to T-junction conduits, and utilizing the cooperation of support feet and connecting rings, the problems of difficult wire threading and impurity accumulation in T-junction conduits are solved, enabling smooth wire insertion and replacement, and adapting to adjustments for different conduit diameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-24
AI Technical Summary
In building electrical construction, problems such as difficulty in threading wires through T-junctions, inconvenience in replacing wires, and accumulation of impurities are common, especially when the line is long or has many branches. This makes threading and replacing wires complicated, and the limited internal space of the T-junction increases the difficulty of operation.
An unbalanced self-extensioning lead wire assembly adapted to a three-way conduit was designed, including a connecting body, a connecting ring, and a support foot. The lead wire can be smoothly inserted and replaced through the cooperation of the elastic tab of the support foot and the swing arm. The lead wire is fixed by the connecting ring and the wiring assembly. The caster wheel increases the smoothness of movement, and the convex head structure optimizes the space inside the conduit.
It enables smooth wire threading and line replacement in T-junction conduits, solving the problems of difficult threading and impurity accumulation, ensuring a simple and standardized wire lead-in process, and adapting to adjustments for different conduit diameters.
Smart Images
Figure CN224036988U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of imbalance self-expanding lead-in parts suitable for three-way line pipe, belong to building electrical field. BACKGROUND
[0002] In building electrical construction, three-way line pipe is an important accessory, mainly used for the branch connection of electric wire or cable. When the main line needs to branch out multiple branch lines, three-way line pipe can conveniently divide the main line into multiple branches, such as leading out multiple lines from the distribution box to different rooms or equipment, thereby meeting the power demand of different areas. In addition, three-way line pipe can also cooperate with fittings such as elbows to realize the turning of the line, to adapt to the change of line direction caused by building structure or other equipment layout. In the electrical shaft between floors, three-way line pipe can also be used to converge the lines of different floors to the main line, meeting the demand of multi-line convergence. Three-way line pipe not only plays an important role in the construction process, but also provides convenience for subsequent maintenance and expansion. With the continuous updating of electrical equipment, the wiring system needs to have enough flexibility and scalability. Three-way line pipe provides full possibility for future system upgrade and line expansion through reasonable space layout and reserved interface.
[0003] When threading the three-way line pipe, the following problems exist:
[0004] 1. Difficulty in threading: After using three-way line pipe in concealed wiring construction, it is difficult for the lead-in wire to pass through during threading, especially when the line is long or the branches are many, the threading difficulty will greatly increase.
[0005] 2. Inconvenient line replacement: Once the line is damaged and needs to be replaced, the presence of three-way line pipe will make the line replacement process complex. Due to the limited internal space of three-way, the new lead-in wire is difficult to pass through smoothly, and it may be necessary to remove part of the three-way or rewire.
[0006] 3. Accumulation of impurities: During construction, if impurities block the line pipe and are not discovered and cleaned in time, it will reduce the threading space and increase the operation difficulty of threading. INVENTION CONTENTS
[0007] To overcome the defects of the prior art, a kind of imbalance self-expanding lead-in parts suitable for three-way line pipe is provided to solve the above problems.
[0008] An unbalanced self-expanding lead-out device suitable for a tee pipe, comprising a connecting body, a connecting ring and three supporting feet, the connecting ring is arranged at the center of one side of the connecting body, and the three supporting feet are circumferentially and slidingly arranged on the connecting body; the connecting body comprises a top disc and a bottom disc, the connecting ring is arranged at the center of the outside of the top disc, the top disc and the bottom disc are both circular disc bodies, the longitudinal section of the top disc along the axial direction thereof is in T shape, the vertical end of the T shape is fixedly connected with one side of the bottom disc as a whole, an annular groove is formed on the side of the top disc facing the bottom disc, and a T-shaped ring groove is formed on the other side of the top disc; each supporting foot comprises an elastic tab, a sliding piece, a swing arm, a limiting plate, a spring, an arc-shaped piece and a moving wheel, the sliding piece is slidingly arranged in the annular groove, the elastic tab is arranged on one side of the sliding piece and slidingly arranged in the annular groove, one end of the sliding piece is hingedly connected with one end of the swing arm, the other end of the swing arm is hingedly connected with the moving wheel, the bottom end of the limiting plate is slidingly arranged in the T-shaped ring groove, one end of the arc-shaped piece penetrates through the limiting plate, the other end of the arc-shaped piece is connected with the swing arm, the spring is sleeved on the arc-shaped piece and located between the limiting plate and the swing arm, when the swing arm is in the most folded state, the end of the arc-shaped piece penetrating through the limiting plate abuts against the top disc, and when the swing arm is in the unfolded state, the end of the arc-shaped piece penetrating through the limiting plate is separated from the top disc.
[0009] As a preferred scheme, the connecting ring is replaced by a wiring assembly, the wiring assembly comprises a U-shaped piece, a connecting end sleeve and an extrusion screw, the U-shaped piece is arranged at the center of the top disc, the connecting end sleeve is hingedly connected to the U-shaped piece, a lead wire is arranged in the connecting end sleeve, and the lower end of the extrusion screw penetrates through the U-shaped piece and the connecting end sleeve and abuts against the lead wire.
[0010] As a preferred scheme, the moving wheel is replaced by a universal wheel, and the universal wheel is hingedly connected to one end of the swing arm.
[0011] As a preferred scheme, the swing arm comprises a connecting plate, an inner arm, a slot plate and a plurality of positioning screws, the moving wheel is hingedly connected to one end of the connecting plate, the other end of the connecting plate is fixedly connected with one end of the inner arm as a whole, a plug hole is formed in one end of the slot plate along the length direction thereof, the other end of the inner arm penetrates through the plug hole of the slot plate, the other end of the slot plate is hingedly connected to the sliding piece, and the end of the inner arm in the plug hole is detachably connected with the slot plate through the plurality of positioning screws.
[0012] As a preferred scheme, a convex head is arranged on the bottom disc, the convex head is a conical body, and the large-diameter end of the convex head is connected with the bottom disc.
[0013] The beneficial effects of the utility model lie in:
[0014] The utility model discloses a guide tool that is specially used for leading the lead wire into the main pipe of the tee pipe and shunting the lead wire when passing through the branch pipe, which can complete the blind lead wire operation process by the pre-guide of the utility model under the action of artificial lead wire force, and the lead wire can be smoothly pushed into the branch pipe from the main pipe of the tee pipe through the cooperation of the connecting body, the supporting leg and the connecting ring, so that the threading personnel can complete the threading operation process of the tee pipe blindly, and the utility model can also easily complete the threading operation of the tee pipe when the number of the line in the tee pipe is small, and solve the problem that the space in the tee pipe is reduced and the lead wire is difficult to thread in when the tee pipe is blocked by impurities, so as to ensure the simple and standard lead wire process. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the use effect stereoscopic structure schematic diagram of the utility model;
[0016] Figure 2 It is the stereoscopic structure schematic diagram of connecting body, supporting leg and connecting ring;
[0017] Figure 3 It is the cross section structure schematic diagram of connecting body;
[0018] Figure 4 It is the stereoscopic structure schematic diagram of supporting leg and connecting body half cut;
[0019] Figure 5 It is the stereoscopic structure schematic diagram of supporting leg;
[0020] Figure 6 It is the stereoscopic structure schematic diagram of wiring assembly;
[0021] Figure 7 It is the stereoscopic structure schematic diagram of universal wheel;
[0022] Figure 8 It is the stereoscopic structure schematic diagram of swing arm;
[0023] Figure 9 It is the stereoscopic structure schematic diagram of convex head.
[0024] In the figure: 1-connection main body; 1-1-top disc; 1-1-1-annular groove; 1-1-2-T-shaped annular groove; 1-2-bottom disc; 2-supporting leg; 2-1-elastic push piece; 2-2-sliding piece; 2-3-oscillating arm; 2-3-1-connection plate; 2-3-2-inner arm; 2-3-2-1-positioning screw hole; 2-3-3-groove plate; 2-3-4-positioning screw; 2-4-limiting plate; 2-5-spring; 2-6-arc-shaped piece; 2-7-moving wheel; 2-8-universal wheel; 3-connection ring; 4-three-way wire tube; 4-1-main tube; 4-2-branch tube; 5-wire lead; 6-wire connection assembly; 6-1-U-shaped piece; 6-2-connection end sleeve; 6-3-extrusion screw; 7-boss. DETAILED DESCRIPTION
[0025] Other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. The present application can also be implemented or applied in other different specific embodiments, and each detail in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.
[0026] Embodiment 1: combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9The imbalance self-expanding lead-out device for adapting to a three-way pipe in the embodiment comprises a connecting body 1, a connecting ring 3 and three supporting feet 2, the connecting ring 3 is arranged at the center of one side of the connecting body 1, and the three supporting feet 2 are circumferentially and slidingly arranged on the connecting body 1; the connecting body 1 comprises a top disc 1-1 and a bottom disc 1-2, the connecting ring 3 is arranged at the center of the outside of the top disc 1-1, the top disc 1-1 and the bottom disc 1-2 are both circular disc bodies, the longitudinal section of the top disc 1-1 along the axial direction thereof is in the shape of T, the vertical end of the T-shaped body is fixedly connected with one side of the bottom disc 1-2 as a whole, the side of the top disc 1-1 facing the bottom disc 1-2 is processed with an annular groove 1-1-1, and the other side of the top disc 1-1 is processed with a T-shaped ring groove 1-1-2; each supporting foot 2 comprises an elastic tab 2-1, a sliding piece 2-2, a swing arm 2-3, a limiting plate 2-4, a spring 2-5, an arc-shaped piece 2-6 and a moving wheel 2-7, the sliding piece 2-2 is slidingly arranged in the annular groove 1-1-1, one side of the sliding piece 2-2 is provided with the elastic tab 2-1, the elastic tab 2-1 is slidingly arranged in the annular groove 1-1-1, one end of the sliding piece 2-2 is hingedly connected with one end of the swing arm 2-3, the other end of the swing arm 2-3 is hingedly connected with the moving wheel 2-7, the bottom end of the limiting plate 2-4 is slidingly arranged in the T-shaped ring groove 1-1-2, one end of the arc-shaped piece 2-6 penetrates through the limiting plate 2-4, the other end of the arc-shaped piece 2-6 is connected with the swing arm 2-3, the spring 2-5 is sleeved on the arc-shaped piece 2-6, and the spring 2-5 is between the limiting plate 2-4 and the swing arm 2-3; when the swing arm 2-3 is in the most folded state, the end of the arc-shaped piece 2-6 penetrating through the limiting plate 2-4 abuts against the top disc 1-1; when the swing arm 2-3 is in the unfolded state, the end of the arc-shaped piece 2-6 penetrating through the limiting plate 2-4 is separated from the top disc 1-1.
[0027] After the three swing arms 2-3 are folded towards the connecting ring 3 with the connecting body 1 as the head, the utility model is put into the three-way pipe 4, the three moving wheels 2-7 are in contact with the inner wall of the three-way pipe 4, the flowability during construction is increased, the elastic tab 2-1 between the two sliding pieces 2-2 can make the three swing arms 2-3 move along the circumferential direction of the connecting body 1 through the sliding piece 2-2, so that the utility model can not be clamped at the communication position between the main pipe 4-1 and the branch pipe 4-2 of the three-way pipe 4 when re-entering the branch pipe 4-2 of the three-way pipe 4, and the spring 2-5 has a continuous force on the swing arm 2-3, so as to ensure that the swing arm 2-3 can be unfolded into the branch pipe 4-2 at the first time when entering the branch pipe 4-2 of the three-way pipe 4.
[0028] Specific implementation method two: this implementation method is a further limitation of the specific implementation method one, the connecting ring 3 is replaced by the wiring assembly 6, the wiring assembly 6 includes a U-shaped piece 6-1, a connecting end sleeve 6-2 and an extrusion screw 6-3, the U-shaped piece 6-1 is arranged at the center of the top disc 1-1, the connecting end sleeve 6-2 is hinged on the U-shaped piece 6-1, the lead wire 5 is arranged in the connecting end sleeve 6-2, and the lower end of the extrusion screw 6-3 is tightly arranged with the lead wire 5 by penetrating the U-shaped piece 6-1 and the connecting end sleeve 6-2.
[0029] The end of the lead wire 5 is inserted into the cavity of the connecting end sleeve 6-2, and the extrusion screw 6-3 is screwed down to tightly press and fix the end of the lead wire 5. During the threading operation, since the connecting end sleeve 6-2 is hinged on the U-shaped piece 6-1, when the end of the lead wire 5 enters the branch pipe 4-2 of the tee pipe 4, the direction can be adjusted by rotating the connecting end sleeve 6-2, and the smoothness of the lead wire 5 during operation is increased.
[0030] Specific implementation method three: this implementation method is a further limitation of the specific implementation method one or two, the moving wheel 2-7 is replaced by the universal wheel 2-8, the universal wheel 2-8 is hinged on one end of the swing arm 2-3, the universal wheel 2-8 can be adjusted according to the actual moving direction, better fit the inner wall of the tee pipe 4, and increase the smoothness of the movement.
[0031] Specific implementation method four: this implementation method is a further limitation of the specific implementation method one, two or three, the swing arm 2-3 includes a connecting plate 2-3-1, an inner arm 2-3-2, a slot plate 2-3-3 and a plurality of positioning screws 2-3-4, one end of the connecting plate 2-3-1 is hinged with the moving wheel 2-7, the other end of the connecting plate 2-3-1 is fixedly connected with one end of the inner arm 2-3-2 as a whole, one end of the slot plate 2-3-3 is processed with a insertion hole along the length direction, the other end of the inner arm 2-3-2 is arranged in the insertion hole of the slot plate 2-3-3, the other end of the slot plate 2-3-3 is hinged on the sliding piece 2-2, and the end of the inner arm 2-3-2 in the insertion hole is detachably connected with the slot plate 2-3-3 through the plurality of positioning screws 2-3-4.
[0032] The positioning screw 2-3-4 in the implementation method is an existing screw, a plurality of positioning screw holes 2-3-2-1 corresponding to the positions of the positioning screw 2-3-4 are processed on the inner arm 2-3-2, when the positions of the positioning screw holes 2-3-2-1 coincide with the positions of the insertion hole of the slot plate 2-3-3, the positioning screw 2-3-4 is threadedly connected with the positioning screw hole 2-3-2-1 by penetrating the insertion hole of the slot plate 2-3-3, and the stable fixing process of the relative positions between the inner arm 2-3-2 and the slot plate 2-3-3 after adjustment is realized.
[0033] The cooperation principle of the above components in the embodiment is that the positioning screws 2-3-4 are loosened to disengage the positioning screws 2-3-4 from the groove plates 2-3-3, at this time, the overall length of the swing arms 2-3 is adjusted by adjusting the extension length of the inner arms 2-3-2, and then the position of the inner arms 2-3-2 is fixed by resetting the positioning screws 2-3-4, so as to adjust the overall length of the swing arms 2-3, and then the purpose of adapting to the inner circle diameters of different tee pipes 4 is achieved.
[0034] Specific embodiment five: the embodiment is further limited to the specific embodiments one, two, three or four, the bottom plate 1-2 is provided with a convex head 7, the convex head 7 is a conical body, the large diameter end of the convex head 7 is connected with the bottom plate 1-2, and the structure of the conical body is more conducive to pushing the original wires in the tee pipe 4 to the pipe wall direction to leave space for the movement of the overall structure in the process of threading.
[0035] The utility model from the lead 5 from the main pipe 4-1 into the branch pipe 4-2 working principle:
[0036] When one swing arm 2-3 enters the branch pipe 4-2 of the tee pipe 4: one end of the lead 5 is fixed on the connecting ring 3, then the three swing arms 2-3 are bent inward at the same time, the connecting body 1 is taken as the head, and is inserted into the main pipe 4-1 of the tee pipe 4 and is pushed forward, along with the continuous pushing of the utility model, when moving to the position of the branch pipe 4-2 of the tee pipe 4, one swing arm 2-3 close to the branch pipe 4-2 of the three swing arms 2-3 is disengaged from the pipe wall of the main pipe 4-1 of the tee pipe 4 and enters the branch pipe 4-2 of the tee pipe 4, at this time, the spring 2-5 expands, the swing arm 2-3 in the branch pipe 4-2 is expanded, the outside of the swing arm 2-3 is attached to the bottom plate 1-2, at this time, the other two swing arms 2-3 in the main pipe 4-1 lose balance, the spring 2-5 on the swing arms 2-3 also expands, and the connecting body 1 is pushed into the branch pipe 4-2, so as to achieve the purpose of threading the lead 5 into the branch pipe 4-2 of the tee pipe 4, the lead 5 is continuously pushed, the connecting body 1 moves along the direction of the branch pipe 4-2, the two swing arms 2-3 at the rear end are extruded by the pipe wall of the branch pipe 4-2, at this time, the two swing arms 2-3 at the rear end extrude the elastic tab 2-1 between them, along with the continuous entering into the branch pipe 4-2, the two swing arms 2-3 are gradually closed, and finally completely enter the branch pipe 4-2, so as to realize the threading operation.
[0037] When two swing arms 2-3 enter the branch pipe 4-2 of the tee pipe 4: the principle is the same as above, when two swing arms 2-3 enter the branch pipe 4-2 of the tee pipe 4, the remaining one swing arm 2-3 loses balance and expands, the two swing arms 2-3 are pushed in, the two swing arms 2-3 synchronously extrude the elastic tab 2-1 between them, so as to realize the entering of the utility model into the branch pipe 4-2 of the tee pipe 4.
Claims
1. An unbalanced self-deploying lead device adapted for a tee wire tube, characterized by: The utility model relates to a kind of three support feet of connection, including connecting main body (1), connecting ring (3) and three support feet (2), connecting ring (3) is arranged in the center of one side of connecting main body (1), and three support feet (2) are circumferentially slidingly arranged on connecting main body (1). Connecting main body (1) includes top disc (1-1) and bottom disc (1-2), connecting ring (3) is arranged in the center of the outside of top disc (1-1), and top disc (1-1) and bottom disc (1-2) are both circular disc body, the vertical end of T-shaped type is fixedly connected with one side of bottom disc (1-2) as a whole along the longitudinal section of top disc (1-1) in its axial direction direction, and the side of top disc (1-1) towards bottom disc (1-2) is processed with annular groove (1-1-1), and the other side of top disc (1-1) is processed with T-shaped ring groove (1-1-2). Each support foot (2) includes elastic tab (2-1), slider (2-2), swing arm (2-3), limit plate (2-4), spring (2-5), arc-shaped piece (2-6) and moving wheel (2-7), slider (2-2) is slidingly arranged in annular groove (1-1-1), one side of slider (2-2) is provided with elastic tab (2-1), elastic tab (2-1) is slidingly arranged in annular groove (1-1-1), one end of slider (2-2) is hingedly connected with one end of swing arm (2-3), the other end of swing arm (2-3) is hingedly connected with moving wheel (2-7), the bottom end of limit plate (2-4) is slidingly arranged in T-shaped ring groove (1-1-2), one end of arc-shaped piece (2-6) passes through limit plate (2-4), the other end of arc-shaped piece (2-6) is connected with swing arm (2-3), spring (2-5) is sleeved on arc-shaped piece (2-6), and spring (2-5) is between limit plate (2-4) and swing arm (2-3), when swing arm (2-3) is in the state of retraction limit, one end of arc-shaped piece (2-6) passing through limit plate (2-4) is attached to top disc (1-1), when swing arm (2-3) is in the state of expansion, one end of arc-shaped piece (2-6) passing through limit plate (2-4) is separated from top disc (1-1).
2. An unbalanced self-deploying lead of an adaptor tee, according to claim 1, characterized in that: Connecting ring (3) is replaced by wiring assembly (6), wiring assembly (6) includes U-shaped piece (6-1), connecting end sleeve (6-2) and extrusion screw (6-3), U-shaped piece (6-1) is arranged in the center of top disc (1-1), connecting end sleeve (6-2) is hingedly connected on U-shaped piece (6-1), lead wire (5) is arranged in connecting end sleeve (6-2), and the lower end of extrusion screw (6-3) passes through U-shaped piece (6-1) and connecting end sleeve (6-2) and is attached to lead wire (5).
3. An unbalanced self-deploying lead of an adapter tee, according to claim 1, wherein: Moving wheel (2-7) is replaced by universal wheel (2-8), and universal wheel (2-8) is hingedly connected to one end of swing arm (2-3).
4. An unbalanced self-deploying lead of an adapter tee, according to claim 1, wherein: The swing arm (2-3) comprises a connecting plate (2-3-1), an inner arm (2-3-2), a slot plate (2-3-3) and a plurality of positioning screws (2-3-4), one end of the connecting plate (2-3-1) is hinged with a moving wheel (2-7), the other end of the connecting plate (2-3-1) is fixedly connected with one end of the inner arm (2-3-2) as a whole, one end of the slot plate (2-3-3) is provided with a socket along the length direction, the other end of the inner arm (2-3-2) is arranged in the socket of the slot plate (2-3-3), the other end of the slot plate (2-3-3) is hinged on the sliding piece (2-2), and the end of the inner arm (2-3-2) in the socket is detachably connected with the slot plate (2-3-3) through the plurality of positioning screws (2-3-4).
5. An unbalanced self-expanding lead component adapted for a tee fitting, according to claim 1, wherein: The bottom plate (1-2) is provided with a convex head (7), the convex head (7) is a conical body, and the large-diameter end of the convex head (7) is connected with the bottom plate (1-2).