CN211859152U - Spark plug butt joint probe rod for engine cold test and spark plug test bench - Google Patents
Spark plug butt joint probe rod for engine cold test and spark plug test bench Download PDFInfo
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- CN211859152U CN211859152U CN202020443537.6U CN202020443537U CN211859152U CN 211859152 U CN211859152 U CN 211859152U CN 202020443537 U CN202020443537 U CN 202020443537U CN 211859152 U CN211859152 U CN 211859152U
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Abstract
The utility model discloses a spark plug butt joint probe rod for an engine cold test and spark plug test bench, which comprises a butt joint probe with a hollow inner cavity, wherein a copper ring is embedded on the inner cavity wall of the butt joint probe, and the inner annular surface part or the whole part of the copper ring is exposed in the hollow inner cavity of the butt joint probe; one end of the hollow inner cavity is an opening end, and the other end of the hollow inner cavity forms a cavity bottom; the device comprises a cavity bottom, a positioning base, a butt joint probe, a positioning base and a positioning device, wherein the cavity bottom is provided with the butt joint probe protruding out of the cavity bottom, and the butt joint probe is telescopically connected to the positioning base arranged at the cavity bottom through threads; the copper ring is connected with the first end of a first conductive cable, and the positioning base is connected with the first end of a second conductive cable; the second end of the first conductive cable is connected with a first cable connector, the second end of the second conductive cable is connected with a second cable connector, the first cable connector is a cable male connector or a cable female connector, and the second cable connector is a cable female connector or a cable male connector.
Description
Technical Field
The utility model relates to a be used for engine cold test and spark plug test rack butt joint engine spark plug structure.
Background
At present, the ignition coil of an engine manufacturer is mainly used for butting with an engine in the common cold test and spark plug test of the engine. Such ignition coils have a number of disadvantages: firstly, the ignition coil is a product ignition coil, the service life is limited, generally, the service life is only dozens of times to hundreds of times, and the requirement of repeated use of production lines for hundreds of times every day cannot be met; secondly, the consistency of the ignition coils is not high, partial differences exist among the ignition coils of different batches, the differences can cause errors of spark plug test data, and meanwhile, the difficulty of replacing the ignition coils is increased; the third ignition coil is generally designed by matching with the spark plug of the engine of an engine manufacturer, the compatibility is poor, and different engine manufacturers must use different ignition coils for matching; fourthly, the spark plug electrode gap size can be detected by using the product ignition coil according to the structure, and the cracking of the spark plug ceramic body cannot be completely detected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a spark plug butt joint probe rod is used to engine cold test and spark plug test rack that compatibility is good, long service life is provided.
The technical problem to be solved can be implemented by the following technical scheme.
The utility model provides an engine cold test and spark plug test are spark plug butt joint probe for rack which characterized by, includes:
the butt joint probe is provided with a hollow inner cavity, a copper ring is embedded on the inner cavity wall of the butt joint probe, and part or all of the inner ring surface of the copper ring is exposed in the hollow inner cavity of the butt joint probe; one end of the hollow inner cavity is an opening end, and the other end of the hollow inner cavity forms a cavity bottom; the device comprises a cavity bottom, a positioning base, a butt joint probe, a positioning base and a positioning device, wherein the cavity bottom is provided with the butt joint probe protruding out of the cavity bottom, and the butt joint probe is telescopically connected to the positioning base arranged at the cavity bottom through threads; the copper ring is connected with the first end of a first conductive cable, and the positioning base is connected with the first end of a second conductive cable; the second end of the first conductive cable is connected with a first cable connector, the second end of the second conductive cable is connected with a second cable connector, the first cable connector is a cable male connector or a cable female connector, and the second cable connector is a cable female connector or a cable male connector.
As one of the preferred embodiments of the present invention, the copper ring is a cylindrical structure, and a hollow portion is formed on the cylindrical structure, and a part of the substrate of the docking probe protrudes into the hollow portion to keep the embedded state between the two (i.e. the part of the substrate of the docking probe is embedded into the hollow portion).
As a further improvement of the technical scheme, the butt joint probe is a one-time pouring forming piece.
As a preferred form of the invention, the docking probe is a polyurethane moulding.
As a further improvement of the present technical solution, the docking probe is positioned on a rod body by a positioning pin, and the first conductive cable and the second conductive cable are led out from the inside of the rod body.
As a further improvement of the technical scheme, the first cable connector is a cable female connector, and a male contact pin is embedded in the cable female connector; the second cable joint is a cable male joint, and a female contact pin is embedded in the cable male joint;
as a further improvement of the technical scheme, a positioning sleeve is embedded at the socket of the female contact pin.
As a further improvement of the technical scheme, the periphery of the rod body is provided with a raised annular positioning boss.
As a further improvement of the present invention, the first cable joint is a cast molding, and the second cable joint is a cast molding.
Also as a preferred form of the present invention, an overload protection device is provided on a line of the first cable and/or the second cable.
The spark plug butt joint probe rod for the engine cold test and spark plug test bench adopting the technical scheme is completed by using an injection molding process at a butt joint probe, and after a high-elasticity gold-plated probe is embedded in the butt joint probe rod and is in butt joint with a spark plug, the service life can reach more than ten thousand times; the positioning boss designed on the probe fixing rod can realize quick installation and positioning, and the replacement and maintenance in the later period are convenient; the probe in the butt joint probe is set as a high-elasticity gold-plated probe which can be adjusted according to requirements and is compatible with the butt joint of spark plugs of most engine manufacturers; the copper ring embedded in the butt joint probe can accurately realize spark plug discharge, and accurately detect the size of a spark plug gap and the cracking of a ceramic body.
Drawings
FIG. 1 is a schematic perspective view of a butt-joint probe of a spark plug according to the present invention;
FIG. 2 is a structural schematic diagram of the butt joint probe of the spark plug according to the present invention in one direction;
FIG. 3 is a schematic structural view of the other direction of the butt joint probe of the spark plug according to the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4 at block I;
FIG. 6 is an enlarged schematic view of block II of FIG. 4;
FIG. 7 is an enlarged schematic view of the structure of FIG. 4 at block III;
FIG. 8 is a schematic structural view of a copper ring according to the present invention;
in the figure, 1-a carbon rod fixing rod, 2-a butt joint probe, 3-a copper ring, 4-a butt joint probe, 5-a cable protective sleeve, 6-a fixing pin, 7-a cable female joint, 8-a cable male joint, 9-a sleeve, 10-a copper sleeve, 11-a cable, 12-a cable, 13-a female probe, 14-a male probe, 15-a positioning base, 16-a positioning boss, 17-a hollow inner cavity and 18-a hollow part.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 7, the docking probe 4 is a cylindrical structure having a hollow inner cavity 17, and referring to fig. 4 and 5, the left side of the docking probe is a docking opening, the right side of the docking probe is provided with a positioning base 15 at the bottom of the cylinder, the docking probe 2 is spirally positioned on the positioning base 15, and the projection height of the docking probe 2 in the hollow inner cavity is adjusted by adjusting the spiral feeding position. The wall of the hollow inner cavity 17 of the butt joint probe 4 is embedded with a copper ring 3, and the copper ring 3 ensures that at least part of the ring surface is exposed in the hollow inner cavity 17. The copper ring 3 is connected with a cable 11, the positioning base 15 is connected with another cable 12, the other end of the cable 12 is connected with a cable male joint 8, and the cable male joint 8 can be matched and connected with a cable female joint 7. Similarly, the other end of the cable 11 is connected to another cable female connector 7 which is adapted to connect to another cable male connector 8.
Wherein, the middle section of the cable 11 is provided with a sleeve 9, the sleeve 9 is provided with an overload protection device, and the cable 12 can also be provided with a similar protection device.
In addition, the docking probe 4 is fixed on the carbon rod fixing rod 1 through a fixing pin 6, a corresponding cable 11 and a corresponding cable 12 are led out from the interior of the docking probe, and a cable protective sleeve 5 is arranged at the leading-out end.
The butt joint probe of the mechanism is butt jointed with a spark plug by embedding a gold-plated probe, a discharge copper ring and the like in the injection molding process.
Namely, the left part in the figure is a spark plug butt joint probe and a probe rod fixing rod, the middle part is a connecting cable, and the right part is a quick plug connector.
The butt joint probe 4 is formed by one-time injection molding of the die and pouring of polyurethane, abrasion-resistant materials can be added into the poured polyurethane materials, and abrasion resistance of the butt joint probe is enhanced, so that the service life of the butt joint probe is prolonged, and the butt joint probe cannot have fragments and fall off in a butt joint process, so that the problem that mechanical parts are damaged to cause damage to an engine in a test process is avoided.
Because the copper ring 3 is embedded in the butt joint probe 4, if the spark plug ceramic body is broken during testing, the spark plug can discharge to the copper ring 3, and the breaking condition of the spark plug ceramic body can be accurately judged according to the discharging condition. In addition, the outer diameter of the butt joint probe 4 is limited by the engine cylinder body and cannot be made too thick, and the inner diameter (phi 12mm) is limited by the spark plug size and cannot be made too thin. Therefore, the copper ring 3 meets the test requirement so that the spark plug can normally discharge to the copper ring 3; and at the same time, the probe is firmly embedded in the butt joint probe 4 due to the size limitation. Therefore, the shape and size of the copper ring 3 are extremely restricted, and if the outer diameter is too large, the volume of the docking probe 4 becomes too large, and if the inner diameter is too small, the base portion of the docking probe 4 inside the copper ring (with respect to the hollow cavity) becomes too thin to be cast, and the insulation of the portion is reduced. As shown in fig. 8, one of the structural forms of the copper ring 3 is shown (slightly different from the structure of the copper ring shown in fig. 1 to 7, for convenience of description, the number of the copper ring is still set to 3), the structure of the copper ring 3 is improved to increase the hollow part 18, when the docking probe 4 is poured, the pouring material is connected with the docking probe base bodies on the two sides of the copper ring through the hollow part 18 of the copper ring 3 or is directly embedded, so as to avoid the problem that the docking probe 4 cannot be molded due to the over-small inner diameter of the copper ring 3. That is, further engagement is achieved by both of the docking probe bases that protrude into the hollow 18.
One end of a cable 11 is welded with the copper ring 3, and the other end of the cable is connected with components in the test cabinet through a cable female joint 7 and a cable male joint 8. During testing, if the ceramic body of the spark plug is cracked, the cracked part can discharge electricity to the copper ring 3, current can enter the test cabinet along the cable 11, and components in the test cabinet can be damaged due to overlarge discharge current; by cutting the cable 11 and welding the resistor (namely, arranging the resistor in the sleeve 9 in the figure), the resistor and the cable 11 are integrated, the resistance value of the cable 11 after the resistor is increased, and when the spark plug discharges the copper ring 3, the current value entering the components of the test cabinet through the cable 11 can be effectively reduced, so that the damage of electrical elements in the test cabinet when the spark plug discharges the copper ring 3 is prevented.
Because the butt joint probe of threaded connection is selected for use when butt joint probe 2 designs, consequently, can be according to the height of different spark plugs, through the height of screw adjustment butt joint probe to realize the function of compatible most engine manufacturer's spark plug.
Referring to fig. 6, in order to prevent the increase of the opening of the female probe 13 embedded in the male cable connector 8 caused by the long-term insertion and extraction and the poor contact between the male probe 14 embedded in the female cable connector 7 and the female probe 13 embedded in the male cable connector 8, the copper sleeve 10 is embedded outside the female probe 13 before the casting (i.e. equivalent to embedding/embedding a positioning collar at the opening), and the copper sleeve 10 can protect the female probe 13 after the casting so as to prevent the increase of the opening of the female probe 13. In addition, the male probe 14 is embedded in the cable female joint 7, and the female probe 13 is embedded in the cable male probe 8, so that the opening of the female probe 13 can be effectively prevented from being enlarged when the male probe 14 is inserted into the female probe 13, and the reliability of repeated plugging and unplugging contact is ensured.
In addition, the design of 1 outer fringe of carbon-point dead lever has location boss 16, can realize quick location, can quick replacement when butt joint probe damage, practices thrift maintenance duration, has increased the availability ratio of equipment.
The utility model provides a butt joint probe has following advantage:
1. the quick replacement can be realized, and the maintenance and replacement time when a client uses the device is saved;
2. the butt joint probe is made of wear-resistant materials, so that the service life is prolonged;
3. the position of the butt joint probe is adjustable, and the spark plugs of most engine manufacturers can be quickly compatible;
4. the defects of the spark plug are effectively detected;
5. through the optimized structural design, the service life of the cable male connector 8 can be ensured.
Claims (10)
1. The utility model provides an engine cold test and spark plug test for rack spark plug butt joint probe rod which characterized in that includes:
the butt joint probe is provided with a hollow inner cavity, a copper ring is embedded on the inner cavity wall of the butt joint probe, and part or all of the inner ring surface of the copper ring is exposed in the hollow inner cavity of the butt joint probe; one end of the hollow inner cavity is an opening end, and the other end of the hollow inner cavity forms a cavity bottom; the device comprises a cavity bottom, a positioning base, a butt joint probe, a positioning base and a positioning device, wherein the cavity bottom is provided with the butt joint probe protruding out of the cavity bottom, and the butt joint probe is telescopically connected to the positioning base arranged at the cavity bottom through threads; the copper ring is connected with the first end of a first conductive cable, and the positioning base is connected with the first end of a second conductive cable; the second end of the first conductive cable is connected with a first cable connector, the second end of the second conductive cable is connected with a second cable connector, the first cable connector is a cable male connector or a cable female connector, and the second cable connector is a cable female connector or a cable male connector.
2. The spark plug docking probe for an engine cold test and spark plug test bench of claim 1, wherein the copper ring is a cylindrical structure having a hollow portion, and a part of the base of the docking probe protrudes into the hollow portion to maintain the engagement therebetween.
3. The spark plug docking probe for an engine cold test and spark plug test bench according to claim 1 or 2, wherein the docking probe is a disposable cast molding.
4. The spark plug docking probe for an engine cold test and spark plug test rig of claim 3, wherein said docking probe is a polyurethane molding.
5. The spark plug docking probe for an engine cold test and spark plug testing stand of claim 1, wherein said docking probe is positioned on a rod via a positioning pin, said first conductive cable and said second conductive cable exiting from an interior of said rod.
6. The spark plug docking probe for an engine cold test and spark plug test bench of claim 1, wherein said first cable connector is a female cable connector having a male pin embedded therein; the second cable joint is a cable male joint, and a female contact pin is embedded in the cable male joint.
7. The spark plug docking probe for an engine cold test and spark plug test bench of claim 6, wherein a locating sleeve is embedded at the socket of the female pin.
8. The spark plug docking probe for an engine cold test and spark plug test stand of claim 5, wherein a protruding annular positioning boss is provided on a circumference of said rod body.
9. The spark plug docking probe for an engine cold test and spark plug test stand of claim 1, wherein said first cable connector is an overmold and said second cable connector is an overmold.
10. The spark plug docking probe for an engine cold test and spark plug test bench of claim 1, wherein an overload protection device is provided on a line of the first cable and/or the second cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020443537.6U CN211859152U (en) | 2020-03-31 | 2020-03-31 | Spark plug butt joint probe rod for engine cold test and spark plug test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020443537.6U CN211859152U (en) | 2020-03-31 | 2020-03-31 | Spark plug butt joint probe rod for engine cold test and spark plug test bench |
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| Publication Number | Publication Date |
|---|---|
| CN211859152U true CN211859152U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020443537.6U Active CN211859152U (en) | 2020-03-31 | 2020-03-31 | Spark plug butt joint probe rod for engine cold test and spark plug test bench |
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| CN (1) | CN211859152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064938A (en) * | 2022-05-19 | 2022-09-16 | 重庆长安汽车股份有限公司 | Test system and test method for performance of spark plug |
-
2020
- 2020-03-31 CN CN202020443537.6U patent/CN211859152U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064938A (en) * | 2022-05-19 | 2022-09-16 | 重庆长安汽车股份有限公司 | Test system and test method for performance of spark plug |
| CN115064938B (en) * | 2022-05-19 | 2023-05-23 | 重庆长安汽车股份有限公司 | System and method for testing performance of spark plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A spark plug butt probe for engine cold test and spark plug test bench Effective date of registration: 20220209 Granted publication date: 20201103 Pledgee: Industrial Bank Co.,Ltd. Shanghai Zhangjiang sub branch Pledgor: SHANGHAI W-IBEDA HIGH TECH. GROUP CO.,LTD. Registration number: Y2022310000019 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230321 Granted publication date: 20201103 Pledgee: Industrial Bank Co.,Ltd. Shanghai Zhangjiang sub branch Pledgor: SHANGHAI W-IBEDA HIGH TECH. GROUP CO.,LTD.|SHANGHAI H-REILHOFER AUTOMATION TEST TECHNOLOGY CO.,LTD.|TESCO (SHANGHAI) ELECTRICAL TESTING TECHNOLOGY Co.,Ltd. Registration number: Y2022310000019 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |