CN211262712U

CN211262712U - Engine test pencil

Info

Publication number: CN211262712U
Application number: CN201921840861.5U
Authority: CN
Inventors: 荣庆丰; 鲁家军; 王海成; 韩景川; 周琴; 曾大全; 李亮; 王社新
Original assignee: Jice Suzhou Test System Co ltd
Current assignee: Jice Suzhou Test System Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-08-14
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses an engine test pencil, including the pencil body, the pencil body includes a set of branch pencil that is located the sleeve pipe, each the first end of branch pencil extends to the sheathed tube one end and just is connected with the female head of plug connector, each the second end of branch pencil extends to the sheathed tube outside and be connected with and be used for fixed joint, every the colour that connects is different. The beneficial effects of the utility model are mainly embodied in that: the structure is simple and exquisite, the connector has different shapes according to the different positions and shapes of various sensors of the engine, the cable outlet position of the connector is determined according to the actual condition of the engine, and the latch hook is arranged to facilitate the assembly and disassembly of the connector by an operator; different connectors are distinguished through different colors, so that the connector is convenient for operators to recognize and is quick to install.

Description

Engine test pencil

Technical Field

The utility model relates to an engine test technical field specifically relates to an engine test pencil.

Background

After the engine emission is upgraded, the electronic sensor is applied in a large area, but no simple scheme is provided at the early stage of sensor performance judgment, and the electronic sensor can only be detached to be tested on a special rack. When the pressure alarm is failed, whether the pressure alarm is caused by the self failure of the electronic engine oil pressure sensor or not can not be quickly eliminated, so that the conventional general method is to replace the engine oil pressure sensor firstly and then determine a further maintenance scheme according to whether the engine oil pressure alarm failure is eliminated or not. The performance detection method of the electronic oil pressure sensor can only be used for testing by detaching the sensor to a special rack.

The existing detection method can connect the sensor and the test bench together through the test wire harness, the end part of the general test wire harness is provided with a clip for fixing, the fixing clip of the common engine wire harness for the vehicle is difficult to disassemble, so that the common engine wire harness for the vehicle is short in service life when being repeatedly used, generally has only one color, is difficult to distinguish a plurality of wire harnesses, is difficult to quickly and accurately distinguish different wire ends, and is inconvenient to apply when the engine is used for online testing. Therefore, how to develop a test harness which is easy to disassemble and distinguish is a problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art existence, provide an engine test pencil.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides an engine test pencil, includes the pencil body, the pencil body includes a set of branch pencil that is located the sleeve pipe, each branch pencil first end extend outside the sheathed tube one end and be connected with the female head of plug connector, each branch pencil second end extend to the sheathed tube outside and be connected with and be used for fixed joint, every the colour that connects is different.

Preferably, the joint comprises a housing, the housing is provided with an insertion groove, a probe assembly is arranged in the insertion groove, the probe assembly comprises a probe and a probe seat for fixing the probe, and the probe is connected with the second end of the branch wiring harness.

Preferably, the lower part of the side surface of the shell is provided with a wire inlet, a lead in the branch wire harness penetrates through the wire inlet and is connected to the probe, and the wire inlet and the shell are integrally molded through injection.

Preferably, the wire inlet is a rubber sleeve.

Preferably, the wires in the branch wire harness do not leak to the outer shell.

Preferably, the housing is provided with a screw for fixing the wire inside the housing.

Preferably, a clamping groove extending from the bottom of the shell to the insertion groove is formed in the side face of the shell, an L-shaped latch hook capable of rotating around a shaft is arranged in the clamping groove, a bending portion of the latch hook is connected with the inner side wall of the clamping groove in a pivot mode, a clamping hook at the upper end of the latch hook extends into the insertion groove, the lower end of the latch hook protrudes out of the side face of the shell, the inner side of the lower end of the latch hook is connected with one end of a spring, and the other end of the spring is fixed to the bottom of the clamping groove.

Preferably, the lower end of the latch hook is formed with a circular arc protrusion protruding from a side surface of the housing.

The beneficial effects of the utility model are mainly embodied in that:

1. simple structure is exquisite, according to the position of each sensor of engine and the difference of shape, connects and has different shapes, distinguishes different joints through different colours, makes things convenient for operating personnel to discern, installs fast. The cable outlet position of the connector is determined according to the actual condition of the engine, and the latch hook is arranged to facilitate the assembly and disassembly of the connector by an operator.

2. The quick release structure of the latch hook enables the test harness to be recycled.

3. But the breach of latch hook makes joint quick connection to sensor on, press the latch hook and can dismantle fast, improved the efficiency of installation.

4. The wire inlet protects the branch wire harness, and the wire harness at the joint of the branch wire harness and the shell is prevented from being broken.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1: schematic diagram of an embodiment of the present invention;

FIG. 2: the embodiment of the utility model provides a schematic diagram of a joint;

FIG. 3: the embodiment of the utility model provides a schematic diagram of a joint;

FIG. 4: the embodiment of the utility model provides an in the cross-sectional view of joint.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

As shown in fig. 1 to 4, the present invention discloses an engine test harness, which includes a harness body 1, wherein the harness body 1 includes a set of branch harnesses 101 located in a sleeve 102, a first end 1011 of each branch harness 101 extends out of one end of the sleeve 102 and is connected to a plug connector female head 2, the plug connector female head 2 can be a connector 3 for various known test harnesses, which is a known technology and is not repeated herein; the second end of each of the branch harnesses 101 extends to the outside of the bushing 102 and is connected with a joint 3 for fixing and connection, and each of the joints 3 is different in color. The connectors 3 with different colors can be convenient for technicians to distinguish the branch wire harnesses 101, and the installation efficiency can be improved.

As shown in fig. 2, the connector 3 includes a housing 301, the housing 301 has a socket 303, a probe assembly is disposed in the socket 303, the probe assembly includes a probe 302 and a probe holder 309 for fixing the probe 302, the probe holder 309 is fixed in the socket 303, the probe 302 is connected to the second end of the branch wiring harness 101, and the probe 302 may be directly connected to the branch wiring harness 101 or indirectly connected to the branch wiring harness 101 through the probe holder 309.

Specifically, the outside of branch pencil 101 has the protection glue film, the inside parcel of protection glue film has the wire (not shown in the figure), the lower part of shell 301 side is provided with inlet 304, wire in the branch pencil 101 passes inlet 304 is connected to on the probe 302, in the utility model discloses in, the wire with probe 302 or probe seat 309 welding together, also can adopt other suitable connected modes in other embodiments. Moreover, when the probe 302 is connected with the branch wiring harness 101, the protective adhesive layer at the connecting end of the branch wiring harness 101 needs to be torn off to enable the internal conducting wire to leak locally, so that the probe 302 can be conveniently connected; however, the wires in the branch wiring harness 101 do not leak out of the casing 301, that is, the leads outside the casing 301 are all covered in the protective adhesive layer. The housing 301 of the present invention may have different shapes to accommodate different engine types.

The wire inlet 304 may be made of various known feasible materials, such as soft, hard plastic, metal, and the like, preferably, the wire inlet 304 is a rubber sleeve or a silicone sleeve, and the wire inlet 304 and the housing 301 are integrated by injection molding, so that the wire inlet 304 and the housing 301 are tightly combined. The wire inlet 304 protects the branch wire harness 101, and avoids the wire harness at the joint of the branch wire harness 101 and the shell 301 from being broken.

In order to further fix the wires inside the casing 301, a screw 308 for fixing the wires inside the casing 301 is provided on the casing 301.

As shown in fig. 3, a side 3011 of the housing 301 is formed with a slot 305 extending from the bottom to the insertion slot 303, an L-shaped latch 306 rotatable around an axis is disposed in the slot 305, a bent portion 3061 of the latch 306 is pivotally connected to an inner side wall of the slot 305, a latch 3063 at the upper end of the latch extends into the insertion slot 303, the front end of the latch 3063 faces outward, a lower end 3062 of the latch 306 protrudes outward from the side 3011 of the housing 301, an end of a spring 307 is connected to the inner side of the lower end 3062 of the latch 306, and the other end of the spring 307 is fixed to the bottom of the slot 305.

In order to connect the connector 3 to a sensor (not shown), a notch 3064 is provided in the latch 306 near the catch 3063, and a connecting block (not shown) matching the catch 3063 is provided on the sensor and is engaged in the notch 3064. In order to quickly connect the connector 3 with the sensor, the hook 3063 has an inclined surface 3065, so that the connecting block can smoothly enter the notch 3064, and the connecting efficiency can be improved.

To facilitate pressing the latch hook 306, a lower end 3062 of the latch hook 306 is formed with a rounded protrusion protruding from the side 3011 of the housing 301.

The latch hook 306 works according to the following principle: in the initial state, the spring 307 keeps the lower end of the latch hook 306 protruding out of the catch slot 305. When the sensor needs to be connected, the insertion groove 303 is inserted into a corresponding socket on the sensor, and along with the insertion of the insertion groove 303, the connecting block on the sensor slides to the position of the notch 3064 along the inclined surface of the hook 3063, so that the hook 3063 hooks the connecting block, and the stable connection between the connector 3 and the sensor is realized.

When the connector 3 needs to be separated from the sensor, firstly, the arc protrusion of the lower end 3062 is pressed into the clamping groove 305, the latch 306 rotates clockwise around the connecting shaft, at the moment, the latch 3063 on the latch is unhooked from the connecting block on the sensor, and at the moment, the connector 3 can be separated from the sensor by pulling the shell 301 outwards. After separation, the pressing of the lower end of the latch 306 is stopped, and at this time, the latch 306 is rotated in the reverse direction to be returned by the reaction force of the spring 307, and the next insertion can be performed.

The utility model has simple and exquisite structure, the joint 3 has different shapes according to the different positions and shapes of each sensor of the engine so as to adapt to the actual condition of the engine, and the latch hook 306 can facilitate the assembly and disassembly of the joint 3 by an operator; the connector 3 is distinguished differently through different colors, so that the connector is convenient for operators to recognize and can be installed quickly.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. An engine test harness, characterized in that: the wiring harness comprises a wiring harness body (1), wherein the wiring harness body (1) comprises a group of branch wiring harnesses (101) located in a sleeve (102), a first end (1011) of each branch wiring harness (101) extends out of one end of the sleeve (102) and is connected with a plug connector female head (2), a second end of each branch wiring harness (101) extends out of the sleeve (102) and is connected with a connector (3) for fixing, and the color of each connector (3) is different.

2. An engine test harness as set forth in claim 1 wherein: the connector (3) comprises a shell (301), the shell (301) is provided with an insertion groove (303), a probe assembly is arranged in the insertion groove (303), the probe assembly comprises a probe (302) and a probe seat (309) used for fixing the probe (302), and the probe (302) is connected with the second end of the branch wiring harness (101).

3. An engine test harness as set forth in claim 2 wherein: the lower part of the side face of the shell (301) is provided with a wire inlet (304), a conducting wire in the branch wiring harness (101) penetrates through the wire inlet (304) and is connected to the probe (302), and the wire inlet (304) and the shell (301) are integrally formed in an injection molding mode.

4. An engine test harness as set forth in claim 3 wherein: the wire inlet (304) is a rubber sleeve.

5. An engine test harness as set forth in claim 3 wherein: the wires in the branch wire harness (101) do not leak to the outer shell (301).

6. An engine test harness as set forth in claim 5 wherein: the shell (301) is provided with a screw (308) for fixing a lead in the shell (301).

7. An engine test harness as set forth in claim 2 wherein: a clamping groove (305) extending from the bottom of the side face (3011) of the outer shell (301) to the insertion groove (303) is formed, an L-shaped latch hook (306) capable of rotating around a shaft is arranged in the clamping groove (305), a bending portion (3061) of the latch hook (306) is connected with the inner side wall of the clamping groove (305) in a pivot mode, a clamping hook (3063) at the upper end of the latch hook extends into the insertion groove (303), the lower end (3062) of the latch hook (306) protrudes out of the side face (3011) of the outer shell (301), the inner side of the lower end (3062) of the latch hook (306) is connected with one end of a spring (307), and the other end of the spring (307) is fixed to the bottom of the clamping groove (305).

8. An engine test harness as set forth in claim 7 wherein: the lower end (3062) of the latch hook (306) is provided with a circular arc bulge protruding out of the side surface (3011) of the shell (301).