Wire harness suitable for elevator shaft power supply and signal control

Abstract

The utility model relates to the technical field of signal control wire harnesses, and discloses a wire harness suitable for elevator shaft power supply and signal control, each of a main wire body and a branch wire body comprises a power supply wire core, a control wire core and a sheath assembly, and the power supply and signal control wire cores are packaged in the same wire harness, so that the wire harness is prevented from splitting, the assembly and the maintenance are convenient, and the cost is reduced. According to the wire harness, the wire cores are arranged, the heat insulation wrapping layer and the protection wrapping layer are arranged outside the wire cores, the high and low temperature resistance and the abrasion resistance of the wire harness can be effectively improved, and the shielding interlayer in the protection wrapping layer is matched, so that the long service life and the signal transmission and power supply stability of the wire harness can be effectively improved; after installation, connection and limiting of the communication plug can be achieved through embedded clamping of the spherical protruding block on the upper portion of the limiting sheet plate and the groove in the socket, the plugging installation stability of the communication plug can be guaranteed, the transmission work stability of the wire harness is greatly improved, and movable unlocking of the limiting sheet plate can be completed only by pushing the unlocking push block during plugging and unplugging operation.

Description

Technical Field

[0001] The utility model relates to the technical field of signal control wire harnesses, in particular to a wire harness suitable for power supply and signal control in an elevator shaft. Background Art

[0002] Elevators are essential transportation devices in high-rise buildings. When working, elevators often move up and down, and move people through the elevator compartment. They are essential working equipment in high-rise buildings. Elevator working control communication relies on signal control harnesses. In order to carry out communication connection and signal transmission, a signal control harness needs to be installed in the elevator shaft. The signal control harness is installed in the elevator shaft and is used for signal communication between upper and lower floors. It is an important communication connection structure in the elevator system.

[0003] The control wiring harness mainly includes power supply and signal control wiring. The operation of the wiring harness in the elevator shaft will be affected by the environment in the shaft. Since the elevator shaft is connected longitudinally, the temperature and humidity in the shaft will be affected by the environment, and certain requirements are placed on the external protection of the wiring harness. In addition, for the communication wiring harness between floors, the wiring harness must maintain a connected state for a long time after plugging in, and high requirements are placed on the installation stability of the plug. The plug structure of the existing wiring harness is a simple interlocking plug-in structure, and the connection lacks an effective limiting structure, resulting in poor connection stability. During use, it is easy to cause the plug connection to loosen due to the vibration of the elevator operation, resulting in poor contact of the plug connection, thereby causing the elevator button operation to fail, affecting the normal use of the elevator and posing a greater safety risk. For this reason, a wiring harness suitable for elevator shaft power supply and signal control is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a wiring harness suitable for elevator shaft power supply and signal control, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a wiring harness suitable for elevator shaft power supply and signal control, comprising a main line body, both ends of which are provided with communication plugs, and two branch lines respectively extending from the rear of the communication plug on one side, the ends of the two branch lines respectively provided with a panel plug and a loop plug;

[0006] The main line body and the branch line body each include a power supply core, a control core and a sheath assembly, wherein the sheath assembly is arranged outside the power supply core and the control core, and the sheath assembly includes an insulating sheath, a heat insulation sheath, a protective sheath and a shielding interlayer;

[0007] A limiting plate is provided on the plugging side of the communication plug, and a spherical bump is provided on the upper part of the limiting plate. After plugging and installation, the spherical bump is engaged with the groove in the socket, and an unlocking mechanism for unlocking the limiting plate is provided on the upper part of the communication plug.

[0008] Preferably, the communication plug is fixedly mounted on the end of the main line, and the panel plug and loop plug are fixedly mounted on the ends of the two branch lines respectively. The ends of the communication plug, panel plug and loop plug are all provided with communication pinholes.

[0009] Preferably, the power supply core and control core are fixedly wrapped and installed inside the insulating wrapping layer, the thermal insulation wrapping is fixedly wrapped and installed outside the insulating wrapping layer, the protective wrapping is fixedly wrapped and installed outside the insulating wrapping layer, and the shielding interlayer is fixedly installed between the middle interlayers of the protective wrapping.

[0010] Preferably, a plug connector seat is fixed at the front end of the above-mentioned communication plug, and a plug block mounting groove is provided in the middle of the rear side of the plug connector seat. The front end of the limiting plate is fixedly connected to the front side of the plug block mounting groove, the rear part of the limiting plate is movably arranged, and the spherical protrusion is fixed to the upper part of the limiting plate.

[0011] Preferably, the unlocking mechanism includes a limit mounting seat, a limit plug, a spring and an unlocking push block. The upper portion of the communication plug is provided with a mounting groove, and the limit mounting seat is mounted on the inner side of the mounting groove.

[0012] Preferably, the above-mentioned limit plug is slidably engaged and installed on the inner side of the slide groove provided at the lower part of the limit mounting seat, and the front plug end of the limit plug is slidably engaged and installed on the inner side of the plug mounting groove, and the front plug end of the limit plug abuts against the lower part of the limit plate.

[0013] Preferably, the spring is installed in abutment with the rear of the limiting plug, a boss is fixed on the upper part of the limiting plug, the boss movably passes through the limiting mounting seat, and the unlocking push block is fixed to the upper part of the boss by bolts.

[0014] Compared with the prior art, the above technical solution adopted by the present invention has the following technical effects:

[0015] This control harness integrates the power supply and signal control harnesses, and the power supply and signal control wire cores are encapsulated in the same harness, avoiding harness splitting and facilitating assembly and maintenance. In addition, a heat-insulating layer and a protective layer are provided on the outside of the wire core, which can effectively improve the high and low temperature resistance and wear resistance of the harness. Combined with the shielding interlayer in the protective layer, the service life of the harness can be effectively extended and the signal transmission and power supply stability can be ensured. In addition, a limiting plate is provided at the installation location of the communication plug. After installation, the connection limit of the communication plug can be achieved by engaging the spherical protrusion on the upper part of the limiting plate with the groove in the socket. After installation, the limiting plate can be self-locked by the contact limit of the limiting plug block. The structure is simple and the operation is reliable, which can ensure the stability of the plug-in installation of the communication plug and greatly improve the transmission stability of the harness. During the plug-in and unplug operation, the movable unlocking of the limiting plate can be completed by pushing the unlocking push block, and the unlocking operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a schematic diagram of the overall lower plane structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the middle part of the main line body of the present invention;

[0019] Figure 3 This is a schematic diagram of the plug hole distribution structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the communication plug of the present utility model;

[0021] Figure 5 This is a schematic diagram of a partial cross-sectional structure of a communication plug of the present utility model;

[0022] Figure 6 This is a schematic diagram of the installation structure of the unlocking component of the utility model;

[0023] Figure 7 This is a schematic diagram of the disassembled structure of the unlocking component of the present invention.

[0024] Explanation of the accompanying reference numerals: 1. Main line body; 2. Branch line body; 3. Communication plug; 4. Panel plug; 5. Loop plug; 6. Power supply core; 7. Control core; 8. Insulation wrapping layer; 9. Thermal insulation wrapping layer; 10. Protective wrapping layer; 11. Shielding interlayer; 12. Limiting plate; 13. Mounting groove; 14. Limiting mounting seat; 15. Limiting plug block; 16. Spring; 17. Unlocking push block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0027] Example

[0028] See also Figure 1-7 The utility model provides a technical solution: a wiring harness suitable for elevator shaft power supply and signal control, including a main line body 1, in order to facilitate the installation of the interface plug, such as the attached Figure 1 As shown, communication plugs 3 are provided at both ends of the main line body 1. In order to connect and install with the side branch equipment, two branch lines 2 are respectively led out from the rear of the communication plug 3 on one side. The ends of the two branch lines 2 are respectively provided with a panel plug 4 and a loop plug 5. The communication plug 3 is fixedly installed at the end of the main line body 1. The panel plug 4 and the loop plug 5 are respectively fixedly installed at the ends of the two branch lines 2. In order to facilitate signal plugging and connection, as shown in the attached figure, Figure 3 As shown, communication pinholes are provided at the ends of the communication plug 3, the panel plug 4 and the loop plug 5, integrating the power supply and signal control harnesses. The power supply and signal control wire cores are encapsulated in the same harness, avoiding harness splitting and facilitating assembly and maintenance.

[0029] The main line body 1 and the branch line body 2 include a power supply core 6, a control core 7 and a sheath assembly. The power supply core 6 and the control core 7 are used for the connection and transmission of power supply and control signals respectively. The sheath assembly is arranged outside the power supply core 6 and the control core 7. The sheath assembly includes an insulating sheath 8, a heat insulation sheath 9, a protective sheath 10 and a shielding interlayer 11. Figure 2 As shown, the insulating wrapping layer 8 is made of soft insulating rubber material, and the power supply core 6 and the control core 7 are fixedly wrapped and installed inside the insulating wrapping layer 8. The insulating wrapping layer 8 can insulate and separate the cores for protection. The thermal insulation wrapping layer 9 can be made of glass fiber material with good thermal insulation and fireproof properties. The thermal insulation wrapping layer 9 is fixedly wrapped and installed on the outside of the insulating wrapping layer 8, which can improve the thermal insulation and fireproof properties of the wiring harness. The protective wrapping layer 10 can be made of hard rubber material. The protective wrapping layer 10 is fixedly wrapped and installed on the outside of the insulating wrapping layer 8, which can improve the wear resistance of the wiring harness. The shielding interlayer 11 can be a metal mesh sleeve. The shielding interlayer 11 is fixedly installed in the middle interlayer of the protective wrapping layer 10, which can provide anti-interference protection for the internal cores and improve the tensile strength of the wiring harness, which can effectively improve the high and low temperature resistance and wear resistance of the wiring harness. Combined with the shielding interlayer 11 in the protective wrapping layer 10, the service life of the wiring harness can be effectively long and the signal transmission and power supply stability can be ensured.

[0030] In order to limit the installation of the communication plug 3 after installation, as shown in the attached Figure 4 As shown, a limiting plate 12 is provided on the plug-in side of the communication plug 3. The limiting plate 12 is an elastic plastic plate. A plug connector seat is fixed to the front end of the communication plug 3. A plug block mounting groove is provided in the middle of the rear side of the plug connector seat. The front end of the limiting plate 12 is fixedly connected to the front side of the plug block mounting groove. The rear part of the limiting plate 12 is movable and can be elastically deformed. In order to achieve the card-connection limit, a spherical protrusion is provided on the upper part of the limiting plate 12.

[0031] In order to facilitate the unlocking control of the limit plate 12, an unlocking mechanism for unlocking the limit plate 12 is provided on the upper part of the communication plug 3. The unlocking mechanism includes a limit mounting seat 14, a limit plug 15, a spring 16 and an unlocking push block 17. Figure 6 As shown, in order to facilitate the connection and installation of the limit mounting seat 14, a mounting groove 13 is provided on the upper part of the communication plug 3, and the limit mounting seat 14 is mounted on the inner side of the mounting groove 13. Figure 7As shown, the limit plug 15 is slidably engaged and installed on the inner side of the slide groove provided at the lower part of the limit mounting seat 14, and the front plug end of the limit plug 15 is slidably engaged and installed on the inner side of the plug mounting groove. The front plug end of the limit plug 15 abuts against the lower part of the limit plate 12. After plugging and installing, the spherical protrusion is engaged and engaged with the groove in the socket. The contact and limit of the front plug end of the limit plug 15 can realize the limit locking of the spherical protrusion, which can realize self-locking installation. The structure is simple and the operation is reliable, which can ensure the stability of the plug-in installation of the communication plug 3 and greatly improve the transmission stability of the wiring harness.

[0032] In order to facilitate the return and reset of the limit plug 15, as shown in the attached Figure 7 As shown, the spring 16 is installed in abutment with the rear part of the limit plug 15. In order to facilitate the connection and installation of the unlocking push block 17, a boss is fixed on the upper part of the limit plug 15. The boss movably passes through the limit mounting seat 14. The unlocking push block 17 is fixed to the upper part of the boss by bolts, which can facilitate the sliding drive of the limit plug 15. During the plug-in and unplug operation, the limit plate 12 can be unlocked by pushing the unlocking push block 17, and the unlocking operation is convenient.

[0033] The working principle or structural principle is that during installation, the communication plug 3 is first connected and installed. During the plugging operation, the unlocking push block 17 on the upper part of the panel plug 4 is pulled back with the finger, so that the limit plug 15 moves backward and disengages from the lower part of the limit plate 12. Then, the panel plug 4 is plugged and installed through alignment. During the plugging process, the spherical protrusion on the upper part of the limit plate 12 is pressed down by resistance, causing the limit plate 12 to bend downward and deform. After being plugged into place, the spherical protrusion is engaged with the groove in the socket, and then the unlocking push block 17 is released. Under the push of the spring 16, the limit plug 15 moves back and resets and is re-plugged and supported on the lower part of the limit plate 12. The spherical protrusion is prevented from disengaging from the groove through resistance limit, completing the limit locking of the communication plug 3. , and complete the plug-in installation of the communication plug 3 on the other side in the same way, then plug and install the panel plug 4 and the loop plug 5 with the corresponding jacks in sequence to complete the installation operation of the wiring harness. During the working process, the lower wire core is stably wrapped by the insulating wrapping layer 8 inside, and the outer protection of the heat-insulating wrapping layer 9, the protective wrapping layer 10 and the shielding interlayer 11 outside can protect the wiring harness from wear, extreme temperature and interference. At the same time, the installation limit of the spherical bump can ensure the stability of the plug-in installation of the communication plug 3, and ensure the stable transmission of control signals and power supply. When plugging and unplugging the communication plug 3, you only need to pull back the unlocking push block 17 to unlock the limiting plate 12, and then complete the disassembly operation of the communication plug 3 by pulling it out.

[0034] In summary, this control harness integrates the power supply and signal control harnesses, and the power supply and signal control wire cores are encapsulated in the same harness, avoiding harness splitting and facilitating assembly and maintenance. A heat-insulating sheath 9 and a protective sheath 10 are provided on the outside of the wire core, which can effectively improve the high and low temperature resistance and wear resistance of the harness. Combined with the shielding interlayer 11 in the protective sheath 10, the service life of the harness and the stability of signal transmission and power supply can be effectively improved. A limiting plate 12 is provided at the installation position of the communication plug 3. After installation, the connection limit of the communication plug 3 can be achieved by engaging the spherical protrusion on the upper part of the limiting plate 12 with the groove in the socket. After installation, the limiting plate 12 can be self-locked by the limiting plug block 15. The structure is simple and the operation is reliable. It can ensure the stability of the plug-in installation of the communication plug 3, and greatly improve the transmission working stability of the harness. During the plug-in and unplug operation, the movable unlocking of the limiting plate 12 can be completed by pushing the unlocking push block 17, and the unlocking operation is convenient.

[0035] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A wiring harness suitable for elevator shaft power supply and signal control, comprising a main wire body (1), characterized in that: Both ends of the main line body (1) are provided with communication plugs (3), and two branch line bodies (2) are respectively led out and installed at the rear of the communication plug (3) on one side, and the ends of the two branch line bodies (2) are respectively provided with a panel plug (4) and a loop plug (5); The main line body (1) and the branch line body (2) both comprise a power supply core (6), a control core (7) and a sheath assembly, wherein the sheath assembly is arranged outside the power supply core (6) and the control core (7), and the sheath assembly comprises an insulating sheath (8), a heat-insulating sheath (9), a protective sheath (10) and a shielding interlayer (11); A limit plate (12) is provided on the plug-in side of the communication plug (3), and a spherical bump is provided on the upper portion of the limit plate (12). After plugging and installation, the spherical bump is engaged with the groove in the socket, and an unlocking mechanism for unlocking the limit plate (12) is provided on the upper portion of the communication plug (3).

2. A wiring harness suitable for elevator shaft power supply and signal control according to claim 1, characterized in that: The communication plug (3) is fixedly mounted on the end of the main line body (1), and the panel plug (4) and the loop plug (5) are respectively fixedly mounted on the ends of the two branch line bodies (2). The ends of the communication plug (3), the panel plug (4) and the loop plug (5) are all provided with communication pinholes.

3. A wiring harness suitable for elevator shaft power supply and signal control according to claim 2, characterized in that: The power supply core (6) and the control core (7) are both fixedly wrapped and installed inside the insulating wrapping layer (8); the heat-insulating wrapping layer (9) is fixedly wrapped and installed outside the insulating wrapping layer (8); the protective wrapping layer (10) is fixedly wrapped and installed outside the insulating wrapping layer (8); and the shielding interlayer (11) is fixedly installed between the middle interlayers of the protective wrapping layer (10).

4. The wiring harness for elevator shaft power supply and signal control according to claim 1, characterized in that: The front end of the communication plug (3) is fixed with a plug connector seat, and the middle part of the rear side of the plug connector seat is provided with an insert block installation groove. The front end of the limiting plate (12) is fixedly connected to the front side of the insert block installation groove, the rear part of the limiting plate (12) is movably provided, and the spherical protrusion is fixed to the upper part of the limiting plate (12).

5. The wiring harness for elevator shaft power supply and signal control according to claim 4, characterized in that: The unlocking mechanism comprises a limit mounting seat (14), a limit plug (15), a spring (16) and an unlocking push block (17); a mounting groove (13) is provided on the upper portion of the communication plug (3); and the limit mounting seat (14) is mounted on the inner side of the mounting groove (13).

6. The wiring harness for elevator shaft power supply and signal control according to claim 5, characterized in that: The limiting plug (15) is slidably engaged with the inner side of the slide groove provided at the lower part of the limiting mounting seat (14), and the front plug end of the limiting plug (15) is slidably engaged with the inner side of the plug mounting groove, and the front plug end of the limiting plug (15) contacts the lower part of the limiting plate (12).

7. A wiring harness suitable for elevator shaft power supply and signal control according to claim 6, characterized in that: The spring (16) is mounted in abutment with the rear portion of the limiting plug (15); a boss is fixed on the upper portion of the limiting plug (15); the boss movably passes through the limiting mounting seat (14); and the unlocking push block (17) is fixed to the upper portion of the boss by means of bolts.

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