Wire guide for doors and windows

Abstract

This invention relates to the field of wire guide technology, and particularly to a wire guide suitable for doors and windows, comprising a housing, a fixing head, and a spring tube. One end of the spring tube is connected to the housing, and the other end is connected to the fixing head. The housing contains a first terminal, a second terminal, and a spiral spring cable. The first terminal is located at the end of the housing near the spring tube and is slidably connected to the housing. The second terminal is located at the end of the housing away from the spring tube and is fixedly connected to the housing. One end of the spiral spring cable is electrically connected to the first terminal, and the other end is electrically connected to the second terminal. The beneficial effect of this invention is that it avoids the wire from breaking due to frequent straightening and tightening.

Description

Technical Field

[0001] This invention relates to the field of wire guide technology, and more specifically to a wire guide suitable for doors and windows. Background Technology

[0002] The cable guide is suitable for scenarios requiring external power lines, such as electric doors, electric windows, and smart doors, and provides protection for the external power lines.

[0003] Patent application CN202422145101.X discloses a wire guide for doors and windows. A socket and plug are interlocked and secured to a mounting plate with screws. A wire exits from the plug end, passes through a protective spring tube, and connects to a terminal block circuit board. The protective spring tube is secured to a sash-side groove by a spring fixing head and screws. The socket and mounting plate are fixed to the frame side. In this wire guide, the wire extends from the plug end, passes through the protective spring tube, and is fixedly connected to the terminal block circuit board. When the wire is pulled during the opening and closing of the door or window sash, there is a risk of the wire breaking because both ends of the wire are rigidly connected. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a wire guide suitable for doors and windows to avoid the wires from breaking due to frequent straightening and tightening, in order to address the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wire guide suitable for doors and windows, comprising a housing, a fixing head, and a spring tube. One end of the spring tube is connected to the housing, and the other end is connected to the fixing head. The fixing head is provided with a slot for engaging with the spring tube. The inner wall of the slot is provided with several teeth that abut against the spring tube. The end of the housing is formed with an installation hole for securing the spring tube. The housing contains a first terminal, a second terminal, and a spiral spring cable. The first terminal is located at the end of the housing near the spring tube and is slidably connected to the housing. The second terminal is located at the end of the housing away from the spring tube and is fixedly connected to the housing. One end of the spiral spring cable is electrically connected to the first terminal and the other end is electrically connected to the second terminal.

[0006] The present invention, which has the above features, uses a spiral spring cable to replace the traditional wire to connect the first terminal and the second terminal, and sets a sliding first terminal to form a wire length compensation structure. When the door or window is opened or closed and the wire in the spring tube is pulled, the first terminal slides in the box, and at the same time the spiral spring cable extends and retracts, which together absorbs and buffers the tension, preventing the wire from being stretched and broken.

[0007] A further feature of the present invention is that: the box body is provided with a sliding seat that is slidably connected thereto, the sliding seat is provided with a mounting groove for accommodating the first terminal block, and the helical spring cable is located between the sliding seat and the second terminal block.

[0008] The present invention, which has the above-mentioned features, by setting a sliding seat as an integrated mounting carrier for the first terminal, limits the first terminal to the mounting groove, which facilitates assembly and maintenance and improves the sliding stability of the terminal; and limits the position of the helical spring cable so that the cable only extends and retracts between the sliding seat and the second terminal, preventing the cable from interfering with other components.

[0009] A further feature of the present invention is that: the two inner sidewalls of the box are provided with guide strips extending along the sliding direction of the first terminal block, and guide wing plates are provided on both sides of the sliding seat. The guide strips and the top of the box form a guide space to accommodate the guide wing plates.

[0010] The present invention having the above features: the guide strip cooperates with the guide wing plate to provide precise guidance for the sliding seat, effectively preventing the sliding seat from deviating or getting stuck during the reciprocating sliding process; the guide space formed by the guide strip and the top of the box limits the sliding seat and prevents the sliding seat from jumping when the door and window are opened and closed quickly.

[0011] A further feature of the present invention is that the sliding seat is provided with a wire fixing seat, the wire fixing seat includes a frame and a plate. One side of the frame is attached to the end face of the sliding seat where the mounting groove is provided, and the other side is attached to the limiting step surface provided in the box. The plate is located on the side of the frame near the spring tube, and the plate is provided with a wire fixing component that is detachably connected to it.

[0012] The present invention, which has the above-mentioned features, fixes the wire entering the box from the spring tube by setting the wire fixing component, so as to prevent the wire from being pulled loose or loosely connected to the first terminal by external force, thereby improving the stability of the electrical connection; the frame is clamped between the end face of the sliding seat and the limiting step surface of the box, preventing the wire fixing seat from shifting when it moves with the sliding seat; the wire fixing component is detachably connected to the plate, which facilitates the installation or replacement of the wire.

[0013] A further feature of the present invention is that the guide bar is L-shaped and includes a first guide portion disposed along the sliding direction of the first terminal block and a second limiting portion perpendicularly connected to the first guide portion. The second limiting portion is located at the end of the first guide portion away from the spring tube and can abut against the end of the guide wing plate.

[0014] The present invention having the above features: the guide bar is set in an L-shape so that it has both guiding and limiting functions, and the second limiting part limits the maximum stroke of the sliding seat.

[0015] A further feature of the present invention is that the wire fixing component includes two fixing feet connected to the side of the plate, and a U-shaped groove is formed between the fixing feet for the power supply wire to pass through. The fixing feet are provided with threaded holes, and the plate is provided with countersunk holes at the corresponding threaded holes. Countersunk screws are installed in the countersunk holes and threaded holes to achieve a detachable connection between the wire fixing component and the plate.

[0016] The present invention, which has the above-mentioned features, has the following characteristics: the U-shaped groove provides a wrapping and limiting effect on the wire, preventing the wire from moving; the detachable connection achieved by the countersunk screw makes the installation and subsequent maintenance of the wire very convenient and quick; the use of countersunk screws also makes the connection surface flat and optimizes the internal space layout.

[0017] A further feature of the present invention is that: two tension springs are provided between the sliding seat and the second terminal; two hook feet are symmetrically provided on the side of the sliding seat facing the second terminal; two hook blocks are symmetrically provided inside the box; the hook blocks are located between the second terminal and the first terminal; one end of the tension spring is hooked to the hook foot, and the other end is hooked to the hook block.

[0018] The present invention, which has the above-mentioned features, provides an auxiliary elastic force for the reset of the sliding seat by setting a tension spring and an auxiliary helical spring cable to ensure the reset of the sliding seat; the two tension springs are symmetrically arranged to balance the forces and prevent the sliding seat from tilting; the two ends of the tension springs are hooked together, which can be disassembled and assembled without tools, making maintenance convenient.

[0019] A further feature of the present invention is that the box body includes a bottom shell and an upper cover covering the bottom shell. The upper cover has a plurality of hooks extending toward the bottom shell. The bottom shell has a locking block adapted to the hooks. The hooks are L-shaped and include a first extension block and a first locking block. The end face of the first locking block that mates with the hook has a protrusion extending in the width direction. The locking block is L-shaped and includes a second extension block and a second locking block. The second extension block and the second locking block form a locking space with the inner wall of the bottom shell to accommodate the hooks. The end face of the second locking block that mates with the hook has a groove extending in the width direction.

[0020] The present invention, which has the above features, adopts a snap-fit ​​connection between the bottom shell and the top cover, which simplifies the box assembly process and greatly improves production assembly efficiency; the protrusions and grooves fit together, increasing the interlocking friction of the snap-fit ​​surfaces, preventing loosening, and making it less prone to disengagement and failure after long-term use.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0023] Figure 2This is a schematic diagram of the internal structure of the box in an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the sliding seat according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the wire fixing bracket according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the cover in an embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the bottom shell structure according to an embodiment of the present invention. Detailed Implementation

[0028] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0029] like Figure 1-6 The cable guide shown includes a housing 2, a fixing head 1, and a spring tube 3. One end of the spring tube 3 is connected to the housing 2, and the other end is connected to the fixing head 1. The fixing head 1 is provided with a slot 12 for engaging with the spring tube 3. The inner wall of the slot 12 is provided with several teeth 121 that abut against the spring tube 3. The end of the housing 2 has a mounting hole (not shown in the figure) for fastening the spring tube 3. The housing 2 is provided with a first terminal 4, a second terminal 5, and a spiral spring cable 6. The first terminal 4 is located at the end of the housing 2 near the spring tube 3 and is slidably connected to the housing 2. The second terminal 5 is located at the end of the housing 2 away from the spring tube 3 and is fixedly connected to the housing 2. One end of the spiral spring cable 6 is electrically connected to the first terminal 4, and the other end is electrically connected to the second terminal 5.

[0030] The box 2 is provided with a sliding seat 7 that is slidably connected to it. The sliding seat 7 is provided with a mounting groove 71 that accommodates the first terminal 4. The spiral spring cable 6 is located between the sliding seat 7 and the second terminal 5.

[0031] The inner walls of the box 2 are provided with guide strips 21 extending along the sliding direction of the first terminal 4. The sliding seat 7 is provided with guide wing plates 72 on both sides. The guide strips 21 and the top of the box 2 form a guide space to accommodate the guide wing plates 72. The guide strips 21 are L-shaped and include a first guide part 211 arranged along the sliding direction of the first terminal 4 and a second limiting part 212 perpendicularly connected to the first guide part 211. The end of the second limiting part 212 located away from the spring tube 3 of the first guide part 211 can abut against the end of the guide wing plate 72.

[0032] The sliding seat 7 is provided with a wire fixing seat 8. The wire fixing seat 8 includes a frame 81 and a plate 82. One side of the frame 81 is attached to the end face of the sliding seat 7 where the mounting groove 71 is provided, and the other side is attached to the limiting step surface 22 provided in the box 2. The plate 82 is located on the side of the frame 81 near the spring tube 3, and the plate 82 is provided with a wire fixing part 9 that can be detachably connected to it.

[0033] The wire fastener 9 includes two fixing feet 91 connected to the side of the plate 82. A U-shaped groove 92 is formed between the fixing feet 91 for the power supply wire to pass through. The fixing feet 91 are provided with threaded holes 911. The plate 82 is provided with countersunk holes 821 corresponding to the threaded holes 911. Countersunk screws 10 are installed in the countersunk holes 821 and the threaded holes 911 to achieve a detachable connection between the wire fastener 9 and the plate 82.

[0034] Two tension springs 11 are provided between the sliding seat 7 and the second terminal 5. Two hook feet 73 are symmetrically provided on the side of the sliding seat 7 facing the second terminal 5. Two hook blocks 23 are symmetrically provided inside the box 2. The hook blocks 23 are located between the second terminal 5 and the first terminal 4. One end pin of the tension spring 11 is hooked to the hook foot 73 and the other end pin is hooked to the hook block 23.

[0035] The box body 2 includes a bottom shell 24 and an upper cover 25 covering the bottom shell 24. Guide strips 21 and hook blocks 23 are both disposed inside the upper cover 25. A limiting step surface 22 is disposed inside the bottom shell 24. The upper cover 25 is provided with a plurality of hooks 251 extending toward the bottom shell 24. The bottom shell 24 is provided with locking blocks 241 adapted to the hooks 251. The hooks 251 are L-shaped and include a first extension block 2511 and a first locking block 2512. The end face of 2512 that mates with the latch 241 is provided with a protrusion 25121 extending in the width direction. The latch 241 is L-shaped and includes a second extension block 2411 and a second latching block 2412. The second extension block 2411 and the second latching block 2412 form a latching space with the inner wall of the bottom shell 24 to accommodate the latch hook 251. The end face of the second latching block 2412 that mates with the latch hook 251 is provided with a groove 24121 extending in the width direction.

[0036] In general, the fixing head 1 is installed on the door or window frame, and the box 2 is installed on the door or window sash. The wire passes through the spring tube 3 into the box, and passes through the U-shaped groove 92 of the wire fixing part 9 to connect to the first terminal 4. The first terminal 4 and the second terminal 5 are connected by the spiral spring cable 6. When the window or door sash is opened or closed, the wire pulls the first terminal 4 to slide with the sliding seat 7 in the box 2. At the same time, the spiral spring cable 6 is stretched. The first terminal 4 and the spiral spring cable 6 form a displacement compensation structure to prevent the wire from being stretched too taut and breaking.

Claims

1. A wire pass-through device for doors and windows, comprising a box body, a fixed head, a spring tube, one end of the spring tube being connected with the box body, the other end being connected with the fixed head, characterized in that: The fixing head is provided with a slot for engaging with the spring tube. The inner wall of the slot is provided with several teeth that abut against the spring tube. The end of the box body is formed with a mounting hole for fastening the spring tube. The box body is provided with a first terminal, a second terminal, and a spiral spring cable. The first terminal is located at the end of the box body closer to the spring tube and is slidably connected to the box body. The second terminal is located at the end of the box body away from the spring tube and is fixedly connected to the box body. One end of the spiral spring cable is electrically connected to the first terminal and the other end is electrically connected to the second terminal.

2. A wire passer for use with a door or window according to claim 1, characterized in that: The box body is provided with a sliding seat that is slidably connected to it. The sliding seat is provided with a mounting groove that accommodates the first terminal. The helical spring cable is located between the sliding seat and the second terminal.

3. A wire guide suitable for doors and windows according to claim 2, characterized in that: The two inner sidewalls of the box are provided with guide strips extending along the sliding direction of the first terminal block, and guide wing plates are provided on both sides of the sliding seat. The guide strips and the top of the box form a guide space to accommodate the guide wing plates.

4. A wire guide suitable for doors and windows according to claim 2, characterized in that: The sliding seat is provided with a wire fixing seat, which includes a frame and a plate. One side of the frame is attached to the end face of the sliding seat where the mounting groove is provided, and the other side is attached to the limiting step surface provided in the box. The plate is located on the side of the frame near the spring tube, and the plate is provided with a wire fixing component that can be detachably connected to it.

5. A wire guide suitable for doors and windows according to claim 3, characterized in that: The guide bar is L-shaped and includes a first guide portion disposed along the sliding direction of the first terminal block and a second limiting portion perpendicularly connected to the first guide portion. The second limiting portion is located at the end of the first guide portion away from the spring tube and can abut against the end of the guide wing plate.

6. A wire guide suitable for doors and windows according to claim 4, characterized in that: The wire fastener includes two fixing feet connected to the side of the plate, and a U-shaped groove is formed between the fixing feet for the power supply wire to pass through. The fixing feet are provided with threaded holes, and the plate is provided with countersunk holes at the corresponding threaded holes. Countersunk screws are installed in the countersunk holes and threaded holes to achieve a detachable connection between the wire fastener and the plate.

7. A wire guide suitable for doors and windows according to any one of claims 2-5, characterized in that: Two tension springs are provided between the sliding seat and the second terminal. Two hook feet are symmetrically provided on the side of the sliding seat facing the second terminal. Two hook blocks are symmetrically provided inside the box. The hook blocks are located between the second terminal and the first terminal. One end of the tension spring is hooked to the hook foot, and the other end is hooked to the hook block.

8. A wire guide suitable for doors and windows according to any one of claims 2-5, characterized in that: The box body includes a bottom shell and an upper cover covering the bottom shell. The upper cover has a plurality of hooks extending toward the bottom shell. The bottom shell has a locking block adapted to the hooks. The hook is L-shaped and includes a first extension block and a first locking block. The end face of the first locking block that mates with the hook has a protrusion extending in the width direction. The locking block is L-shaped and includes a second extension block and a second locking block. The second extension block and the second locking block form a locking space with the inner wall of the bottom shell to accommodate the hook. The end face of the second locking block that mates with the hook has a groove extending in the width direction.

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