Preheating wire harness applied to diesel engine

Abstract

The utility model discloses a pre-heating wire harness applied to a diesel engine, and relates to the technical field of diesel engine pre-heating assistance. The utility model comprises a first line pipe, one end of which is connected with a communication joint, and the side wall of the first line pipe is communicated with a plurality of second line pipes; a communication line of the communication connector is arranged in the first line pipe, the communication line is communicated with a plurality of branch lines, and each branch line extends into the second line pipe and extends into a port of the second line pipe to be connected with a preheating terminal; the second wire pipe is sleeved with a terminal protection sleeve, and the terminal protection sleeve wraps the preheating terminal and is provided with an opening used for exposing the preheating terminal. The purposes of convenient wire harness installation, simple structure and high assembly efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine preheating assistance, in particular to a preheating wire harness applied to a diesel engine. Background Art

[0002] Engine preheating is a device used to preheat the engine. It heats the cylinder and fuel before the engine starts, improves the engine's starting performance and operating stability, reduces fuel consumption, lowers emissions, and is environmentally friendly and energy-saving.

[0003] At present, in the electronic preheating system of diesel engines, traditional single preheating plugs are mostly connected by a single preheating wire harness. Different preheating terminals are connected and interacted with the preheating plug interface through different wire harnesses. Multiple preheating wire harnesses are required. The installation of workshop workers is time-consuming and laborious, affecting production. In addition, the installation space is limited and the cost is high. Utility Model Content

[0004] The utility model aims to provide a preheating harness for a diesel engine, so as to achieve the purpose of convenient harness installation, simple structure and high assembly efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical means:

[0006] A preheating harness for a diesel engine, comprising:

[0007] A first wire tube, one end of which is connected to the communication connector, and a side wall of the first wire tube is connected to a plurality of second wire tubes;

[0008] The communication line of the communication connector is arranged in the first wire tube, and a plurality of branch lines are connected to the communication line, and each branch line extends into the second wire tube and extends from the port of the second wire tube to the connection preheating terminal;

[0009] A terminal protection sleeve is sleeved on the second wire tube, and the terminal protection sleeve covers the preheating terminal and is configured with an opening for exposing the preheating terminal.

[0010] Preferably, the terminal protection cover comprises a rubber tube sleeved on the second wire tube, the end of the rubber tube away from the first wire tube is connected to a spherical cover, the opening is arranged on the spherical cover, and the preheating terminal is arranged in the spherical cover.

[0011] Furthermore, the first wire tube is an elastic tube, and the length of the communication line is greater than the length of the first wire tube in a contracted state.

[0012] Furthermore, the first wire pipe includes a hard tube connected to the outer wall of the communication connector, a spiral elastic tube is coaxially installed at the bottom end of the hard tube, adjacent spiral coils of the spiral elastic tube along its axis are connected by soft cloth strips, and the communication line is arranged in the hard tube and the spiral elastic tube.

[0013] Furthermore, the soft cloth strip is filled in the spiral gap formed by the spiral elastic tube.

[0014] Furthermore, the second conduit is a rubber hose, and the length of the branch line is greater than the length of the second conduit.

[0015] During use, the utility model has the following beneficial effects:

[0016] Using one engine preheating harness can realize the connection of the preheating plugs between multiple cylinders with different branch lines, and realize the connection between the preheating plugs of each cylinder and the communication connector. The structure is simple, effectively reducing the types of engine preheating harnesses, avoiding a large number of line staggering, thereby improving the neatness of the space, and also reducing the use of lines, reducing costs, and improving utilization efficiency and workshop assembly efficiency. After the preheating terminal and the preheating plug are installed, the terminal protection cover is used to protect the connection between the preheating terminal and the preheating plug to prevent the occurrence of short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0020] Among them, 1-first wire tube, 11-hard tube, 12-spiral elastic tube, 13-soft cloth strip, 2-communication connector, 3-second wire tube, 4-communication line, 5-branch line, 6-preheating terminal, 7-terminal protection cover, 71-rubber tube, 72-spherical cover, 8-opening. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Please refer to Figures 1 to 3 As shown, a preheating harness for a diesel engine comprises:

[0028] A first wire tube 1, one end of which is connected to a communication connector 2, and a side wall of the first wire tube 1 is connected to a plurality of second wire tubes 3;

[0029] The communication line 4 of the communication connector 2 is arranged in the first wire tube 1, and a plurality of branch lines 5 are connected to the communication line 4, and each branch line 5 extends into the second wire tube 3 and extends from the port of the second wire tube 3 to the connection preheating terminal 6;

[0030] The second wire tube 3 is sleeved with a terminal protection sleeve 7 , which covers the preheating terminal 6 and is configured with an opening 8 for exposing the preheating terminal 6 .

[0031] In this way, one engine preheating harness can be used to connect the preheating plugs between multiple cylinders using different branch lines 5, and to connect the preheating plugs of each cylinder to the communication connector 2. The structure is simple, and the types of engine preheating harnesses are effectively reduced, and a large number of lines are avoided from being intertwined, thereby improving the neatness of the space, and also reducing the use of lines, reducing costs, and improving utilization efficiency and workshop assembly efficiency. After the preheating terminal 6 and the preheating plug are installed, the terminal protection cover 7 is used to protect the connection between the preheating terminal 6 and the preheating plug to prevent the occurrence of a short circuit.

[0032] When the preheating terminal 6 needs to be connected to the preheating plug, the terminal protection cover 7 is slid on the second wire tube 3, and the preheating terminal 6 is extended from the opening 8 of the terminal protection cover 7, so that the preheating terminal 6 can be connected to the preheating plug. After the connection is completed, the connection part between the preheating terminal 6 and the preheating plug is retracted into the terminal protection cover 7 for protection.

[0033] Furthermore, for the terminal protection cover 7, the terminal protection cover 7 includes a rubber tube 71 sleeved on the second wire tube 3, the end of the rubber tube 71 away from the first wire tube 1 is connected to a spherical cover 72, the open port 8 is arranged on the spherical cover 72, and the preheating terminal 6 is arranged in the spherical cover 72.

[0034] In this way, the rubber tube 71 slides on the second wire tube 3 to achieve movement of the terminal protection cover 7 .

[0035] Furthermore, the first wire tube 1 is an elastic tube, and the length of the communication line 4 is greater than the length of the first wire tube 1 in a contracted state.

[0036] In this way, the elastic extension of the first wire tube 1 can improve the adaptability of the entire preheating wire harness.

[0037] Furthermore, for the first wire pipe 1, the first wire pipe 1 includes a hard tube 11 connected to the outer wall of the communication connector 2, and a spiral elastic tube 12 is coaxially installed at the bottom end of the hard tube 11. The adjacent spiral coils of the spiral elastic tube 12 along its axis are connected by a soft cloth strip 13, and the communication line 4 is arranged in the hard tube 11 and the spiral elastic tube 12.

[0038] Therefore, the soft cloth strip 13 can be used to prevent the first wire tube 1 from excessively stretching, and at the same time, the dustproof capability of the first wire tube 1 can be improved.

[0039] Furthermore, specifically, the soft cloth strip 13 is filled in the spiral gap formed by the spiral elastic tube 12 .

[0040] Meanwhile, the second conduit 3 is a rubber hose, and the length of the branch line 5 is greater than the length of the second conduit 3 .

[0041] Therefore, by adjusting the length of the second wire tube 3 , the corresponding preheating terminal 6 can be connected to the preheating plug far away from the first wire tube 1 by stretching the second wire tube 3 .

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A preheating harness for a diesel engine, characterized in that: include: A first wire tube (1), one end of which is connected to a communication connector (2), and a side wall of the first wire tube (1) is connected to a plurality of second wire tubes (3); The communication line (4) of the communication connector (2) is arranged in the first wire tube (1), and the communication line (4) is connected to a plurality of branch lines (5), and each branch line (5) extends into the second wire tube (3) and extends from a port of the second wire tube (3) to a connection preheating terminal (6); The second wire tube (3) is sleeved with a terminal protection sleeve (7), the terminal protection sleeve (7) covers the preheating terminal (6) and is configured with an open opening (8) for exposing the preheating terminal (6).

2. A preheating harness for a diesel engine according to claim 1, characterized in that: The terminal protection sleeve (7) comprises a rubber tube (71) sleeved on the second wire tube (3), one end of the rubber tube (71) away from the first wire tube (1) is connected to a spherical cover (72), the opening (8) is arranged on the spherical cover (72), and the preheating terminal (6) is arranged in the spherical cover (72).

3. A preheating harness for a diesel engine according to claim 1, characterized in that: The first wire tube (1) is an elastic tube, and the length of the communication line (4) is greater than the length of the first wire tube (1) in a contracted state.

4. A preheating harness for a diesel engine according to claim 1 or 3, characterized in that: The first wire tube (1) comprises a hard tube (11) connected to the outer wall of the communication connector (2); a spiral elastic tube (12) is coaxially mounted on the bottom end of the hard tube (11); adjacent spiral turns of the spiral elastic tube (12) along its axis are connected by soft cloth strips (13); and the communication line (4) is arranged inside the hard tube (11) and the spiral elastic tube (12).

5. A preheating harness for a diesel engine according to claim 4, characterized in that: The soft cloth strip (13) is filled in the spiral gap formed by the spiral elastic tube (12).

6. A preheating harness for a diesel engine according to claim 4, characterized in that: The second conduit (3) is a rubber hose, and the length of the branch line (5) is greater than the length of the second conduit (3).

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