Cleanness detection device for high-pressure common-rail fuel injector

Abstract

The invention relates to the technical field of high-pressure common-rail oil sprayers, in particular to a cleanliness detection device for a high-pressure common-rail oil sprayer, which comprises a detector body, an oil distributor body and a pulse signal line, a plurality of joints are equidistantly arranged at the bottom of the oil distributor body, and the oil distributor body is connected with the high-pressure common-rail oil sprayer through the joints; a connecting plate is fixedly mounted on one side of the oil separator body, and a plurality of connecting orientation mechanisms are arranged on one side of the connecting plate; after the high-pressure common-rail oil injector is sequentially connected with the connectors on the oil distributor body, and the oil distributor body is connected with the detector body, the multiple pulse signal plugs are stably inserted into the multiple electric appliance connectors at the same time through the plug supporting mechanism, and stable connection of the pulse signal plugs and the electric appliance connectors is achieved; and meanwhile, the phenomenon that the pulse signal plug is loosened due to mechanical vibration force generated in the detection process of the detector body is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure common rail injectors, in particular to a cleanliness detection device for high-pressure common rail injectors. Background Art

[0002] The high-pressure common rail injector is the core component of the diesel engine's high-pressure common rail fuel injection system. Its performance directly affects the engine's power, economy and emission levels.

[0003] And the existing high-pressure common rail cleanliness tester generally adopts ultrasonic cleaning technology and microprocessor oil pressure control cleaning and detection technology to simulate various working conditions of the engine to clean and detect the fuel injectors of the automobile. When testing the cleanliness of the high-pressure common rail injectors, multiple high-pressure common rail injectors will be tested at the same time. Before the test, the plugs of multiple pulse signal lines on the tester are respectively connected to the electrical connectors of multiple high-pressure common rail injectors, and then the tester is started. However, due to the mechanical vibration when the tester is working, the electrical connector of the pulse signal line plug and the injector is often not fixed or the plug is not tightly plugged in, resulting in the pulse signal line becoming loose, and then intermittent contact occurs, causing signal interruption or bit error, affecting the stability of the pulse signal line connection. For this reason, we propose a cleanliness detection device for high-pressure common rail injectors. Summary of the Invention

[0004] The object of the present invention is to provide a cleanliness detection device for a high-pressure common rail injector to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a cleanliness detection device for a high-pressure common rail injector, comprising a detector body, an oil separator body, and a pulse signal line. The oil separator body is provided with multiple connectors at equal intervals at the bottom, and the oil separator body is connected to the high-pressure common rail injector via the connectors. A connecting plate is fixedly mounted on one side of the oil separator body, and a plurality of connection orientation mechanisms are provided on one side of the connecting plate. The plurality of connection orientation mechanisms respectively guide and limit the orientation of the electrical connectors of the plurality of high-pressure common rail injectors, so that the plurality of pulse signal line plugs are respectively inserted into the plurality of electrical connectors.

[0006] The connecting plate is provided with a synchronous adjustment mechanism, and the synchronous adjustment mechanism is used to synchronously adjust the multiple connecting direction mechanisms;

[0007] A plug support mechanism is connected to the other side of the oil separator body. The plug support mechanism is used to simultaneously support multiple pulse signal line plugs and assist the multiple pulse signal line plugs in being inserted into multiple electrical connectors.

[0008] Furthermore, a guide rail is provided on one side of the connecting plate close to the oil separator body, and the plurality of connecting orientation mechanisms are all slidably connected to the guide rail.

[0009] Furthermore, the connecting orientation mechanism includes a guide block, an orientation plate and a connecting piece. There are two guide blocks, and both guide blocks are slidably sleeved on the outside of the guide rail. One end of the orientation plate is fixedly connected to the guide block, and the two orientation plates are arranged on both sides of the electrical connector of the high-pressure common rail injector. The connecting piece is connected between the two guide blocks, and a moving port is provided at the position of the connecting piece corresponding to the connecting piece on the connecting plate. The connecting piece is connected to the synchronous adjustment mechanism.

[0010] Furthermore, the connecting member includes a connecting rod and a connecting shell, and two connecting rods are provided. One end of the two connecting rods is rotatably connected to the guide block through a hinge support, and the ends of the two connecting rods close to each other are rotatably connected to the connecting shell through a pin shaft. A connecting block is fixedly connected to one side of the connecting shell, and the connecting block slides through the moving port, and one end of the connecting block is connected to the synchronous adjustment mechanism, and the function of synchronously connecting the two guide blocks is achieved through the provided connecting member.

[0011] Furthermore, the synchronous adjustment mechanism includes a synchronous plate and an adjusting bolt, the synchronous plate is arranged on the outside of the connecting plate, and one end of the multiple connecting blocks is fixedly connected to the synchronous plate, the adjusting bolt is rotatably connected to the top of the oil separator body, and the synchronous plate is threadedly sleeved on the outside of the oil separator body, and the synchronous adjustment mechanism is provided to achieve the function of connecting and supporting the multiple connecting blocks.

[0012] Furthermore, the plug support mechanism includes a support shell, a support side plate, a support member, an inclined plate, a pushing inclined block and a locking member. The support shell is fixedly installed on the other side of the oil separator body, and two support side plates are provided. The two support side plates are located at both ends of the support shell, and the support side plates are fixedly installed on the detector body. The support member is arranged inside the support shell, and the pushing inclined block slides through the support shell. One end of the pushing inclined block is connected to the support member, and the other end of the pushing inclined block is fixedly connected to the inclined plate. The locking member is installed on the inclined plate, and the locking member is connected to multiple pulse signal line plugs. Through the provided plug support mechanism, the function of supporting the pulse signal line plug is realized.

[0013] Furthermore, the support member includes a support rod, a contact bevel block, a synchronization rod, a locking block and a connecting spring. Two support rods are provided, and the two support rods slide through both sides of the support shell respectively. One end of the support rod located inside the support shell is fixedly connected to the contact bevel block. The connecting spring is sleeved on the outside of the support rod, and the two ends of the connecting spring are fixedly connected to the contact bevel block and the inner wall of the support shell respectively.

[0014] An opening is provided on the support shell at a position corresponding to the synchronization rod, one end of the synchronization rod is fixedly connected to the contact bevel block, and the other end of the synchronization rod is fixedly connected to the locking block, both sides of the pushing bevel block are slidably connected to the contact bevel block, a connecting hole is provided on the pushing bevel block, and a threaded hole is provided on the support shell at a position corresponding to the connecting hole, a positioning bolt is threadedly connected to the threaded hole, and the support member is provided to support multiple pulse signal plugs.

[0015] Furthermore, two toothed bars are provided on one side of the locking block, and a plurality of toothed grooves are provided on the side of the supporting side plate close to the supporting shell. The toothed bars are engaged with the toothed grooves, and the locking block and the supporting side plate are fixed to each other through the toothed bars.

[0016] Furthermore, the locking member includes a locking plate, a sliding rod, a locking bolt and a protective member. There are multiple sliding rods, and multiple sliding rods all slide through the inclined plate, and multiple sliding rods are fixedly connected to the locking plate. The locking bolt is threadedly connected to the inclined plate, and one end of the locking bolt is rotatably connected to the locking plate. Multiple pulse signal line plugs are fixedly connected to the locking plate, and connecting ports are provided on both sides of the locking plate and corresponding to the pulse signal line plugs. There are multiple protective members, and the protective member is located between the two connecting ports. Through the provided locking member, a stable connection between the pulse signal line plug and the electrical connector is achieved.

[0017] Furthermore, the protective member includes a movable plate, a movable spring and a protective plate, wherein two movable plates are provided, one end of the two movable plates slides through two connecting ports respectively, one end of the movable spring is fixedly connected to the inner wall of the movable port, and the other end of the movable spring is fixedly connected to the movable plate, the other end of the movable plate is fixedly connected to a limiting block, and a limiting port is provided at a position of the protective plate corresponding to the limiting block, and the limiting block slides through the limiting port, the inner wall of the limiting port is fixedly connected to the limiting spring, and one end of the limiting spring is fixedly connected to the movable plate;

[0018] The end of the protective plate away from the movable plate is wedge-shaped, and an arc block is provided toward the plate, and the protective plate is limited and guided by the arc block. The protective piece is provided, which can protect the pulse signal line plug when the pulse signal line is not in use, and can further stabilize the connection between the pulse signal line plug and the electrical connector when in use.

[0019] The present invention has at least the following beneficial effects:

[0020] 1. When in use, the present invention utilizes a connecting plate mounted on the fuel distributor body and provided with multiple connection orientation mechanisms. This allows the electrical connectors of the high-pressure common rail injectors to be limited and guided when multiple high-pressure common rail injectors are connected to the fuel distributor body, ensuring that the electrical connectors of the multiple high-pressure common rail injectors are oriented in the same direction, thereby facilitating stable connection between multiple pulse signal line plugs and the multiple electrical connectors.

[0021] 2. The present invention supports multiple pulse signal plugs by providing a plug support mechanism on the other side of the oil separator body. That is, when the high-pressure common rail injector and the connectors on the oil separator body are connected in sequence, and the oil separator body is connected to the detector body, the multiple pulse signal plugs are stably inserted into the multiple electrical connectors at the same time through the plug support mechanism, thereby achieving a stable connection between the pulse signal plugs and the electrical connectors and preventing the mechanical vibration force generated by the detector body during the detection process from causing the pulse signal plugs to become loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a front view of the overall structure of the present invention;

[0024] Figure 3 It is a side view of the overall structure of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the high-pressure common rail injector of the present invention;

[0026] Figure 5 This is a structural diagram of the synchronous adjustment mechanism of the present invention;

[0027] Figure 6 This is a schematic structural diagram of the guide block of the present invention;

[0028] Figure 7 This is a schematic diagram of the connector structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the supporting side plate structure of the present invention;

[0030] Figure 9 This is a schematic structural diagram of the plug support mechanism of the present invention;

[0031] Figure 10 This is a schematic diagram of the supporting shell structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the structure of the pusher block of the present invention;

[0033] Figure 12This is a schematic diagram of the protective element structure of the present invention;

[0034] Figure 13 For the present invention Figure 12 Schematic diagram of the enlarged structure of area A in the middle.

[0035] In the figure: 1-detector body; 2-distributor body; 21-connector; 3-pulse signal line; 4-high-pressure common rail injector; 41-electrical connector; 5-connecting plate; 51-guide rail; 52-moving port; 6-connecting orientation mechanism; 61-guide block; 62-orientation plate; 63-connecting piece; 631-connecting support rod; 632-connecting shell; 633-connecting block; 7-synchronizing adjustment mechanism; 71-synchronizing plate; 72-adjusting bolt; 8-plug support mechanism; 81-support shell; 811-opening; 82-support side plate ;821-toothed groove;83-support member;831-support rod;832-contact inclined block;833-synchronizing rod;834-locking block;8341-toothed bar;835-connecting spring;84-inclined plate;85-pushing inclined block;86-limiting plate;9-locking member;91-locking plate;911-connecting port;92-sliding rod;93-locking bolt;94-protective member;941-moving plate;942-moving spring;943-protective plate;944-limiting block;945-limiting spring;946-arc block. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0037] Example 1

[0038] See also Figures 1 to 3 A cleanliness detection device for a high-pressure common rail injector includes a detector body 1, an oil separator body 2, and a pulse signal line 3. A plurality of connectors 21 are provided at equal intervals at the bottom of the oil separator body 2, and the oil separator body 2 is connected to the high-pressure common rail injector 4 through the connectors 21.

[0039] The oil distributor body 2 is connected to the oil outlet pipe on the detector body 1;

[0040] A connecting plate 5 is fixedly mounted on one side of the oil separator body 2, and a plurality of connecting orientation mechanisms 6 are provided on one side of the connecting plate 5. The plurality of connecting orientation mechanisms 6 respectively guide and limit the directions of the electrical connectors 41 of the plurality of high-pressure common rail injectors 4, so that the plugs of the plurality of pulse signal lines 3 are respectively inserted into the plurality of electrical connectors 41;

[0041] A synchronous adjustment mechanism 7 is provided on the connecting plate 5, and the synchronous adjustment mechanism 7 is used to synchronously adjust the multiple connecting direction mechanisms 6;

[0042] A guide rail 51 is provided on one side of the connecting plate 5 close to the oil separator body 2, and a plurality of connecting orientation mechanisms 6 are all slidably connected to the guide rail 51;

[0043] See also Figures 4 to 7 The connecting orientation mechanism 6 includes a guide block 61, an orientation plate 62 and a connecting piece 63. Two guide blocks 61 are provided. Both guide blocks 61 are slidably sleeved on the outside of the guide rail 51. One end of the orientation plate 62 is fixedly connected to the guide block 61, and the two orientation plates 62 are arranged on both sides of the electrical connector 41 of the high-pressure common rail injector 4. The connecting piece 63 is connected between the two guide blocks 61, and a moving port 52 is provided at the position of the connecting plate 5 corresponding to the connecting piece 63. The connecting piece 63 is connected to the synchronous adjustment mechanism 7.

[0044] The connecting member 63 includes a connecting rod 631 and a connecting shell 632. There are two connecting rods 631. One end of the two connecting rods 631 is rotatably connected to the guide block 61 through a hinge support. The ends of the two connecting rods 631 close to each other are rotatably connected to the connecting shell 632 through a pin shaft. A connecting block 633 is fixedly connected to one side of the connecting shell 632. The connecting block 633 slides through the moving port 52, and one end of the connecting block 633 is connected to the synchronous adjustment mechanism 7.

[0045] The synchronous adjustment mechanism 7 includes a synchronous plate 71 and an adjusting bolt 72. The synchronous plate 71 is arranged outside the connecting plate 5, and one end of each of the multiple connecting blocks 633 is fixedly connected to the synchronous plate 71. The adjusting bolt 72 is rotatably connected to the top of the oil separator body 2, and the synchronous plate 71 is threadedly sleeved on the outside of the oil separator body 2.

[0046] Specific implementation process: When the cleanliness of multiple high-pressure common rail injectors 4 is tested, one end of the multiple high-pressure common rail injectors 4 is first passed through the connector 21 of the distributor body 2 to connect the high-pressure common rail injectors 4 to the distributor body 2. At the same time, due to the limiting effect of the two facing plates 62 on both sides of the electrical connector 41 on the high-pressure common rail injector 4, the electrical connector 41 is located between the two facing plates 62. Subsequently, by rotating the adjusting bolt 72, the synchronous plate 71 is moved upward relative to the outer side of the connecting plate 5. When the synchronous plate 71 moves upward, it drives the multiple connecting blocks 633 to move upward synchronously relative to the moving port 52.

[0047] When the moving block moves upward, it drives the connecting shell 632 to move upward relative to the inner side of the connecting plate 5. At this time, the two connecting rods 631 rotate synchronously in opposite directions. At the same time, due to the limiting action of the connecting rod 631 on the guide block 61, the two guide blocks 61 move toward each other. When the two guide blocks 61 move toward each other, the two direction plates 62 are further moved toward each other, and the high-pressure common rail injector 4 is further connected and fixed relative to the oil distributor body 2. At the same time, the direction of the electrical connector 41 of the high-pressure common rail injector 4 is adjusted to be consistent, so that multiple electrical connectors 41 are equidistant and parallel to each other, thereby facilitating the connection of multiple pulse signal lines 3 with multiple electrical connectors 41 respectively.

[0048] See also Figures 8 to 13 , the other side of the oil separator body 2 is connected to a plug support mechanism 8, the plug support mechanism 8 is used to simultaneously support multiple pulse signal line 3 plugs, and assist multiple pulse signal line 3 plugs to be inserted into multiple electrical connectors 41;

[0049] The plug supporting mechanism 8 includes a supporting shell 81, a supporting side plate 82, a supporting member 83, an inclined plate 84, a pushing inclined block 85 and a locking member 9. The supporting shell 81 is fixedly mounted on the other side of the oil separator body 2, and two supporting side plates 82 are provided. The two supporting side plates 82 are located at both ends of the supporting shell 81, and the supporting side plates 82 are fixedly mounted on the detector body 1. The supporting member 83 is arranged inside the supporting shell 81, and the pushing inclined block 85 slides through the supporting shell 81, pushing one end of the inclined block 85 to be connected to the supporting member 83, and pushing the other end of the inclined block 85 to be fixedly connected to the inclined plate 84. In this embodiment, a plurality of grooves are provided on the inclined plate 84 to facilitate the connection of the pulse signal line 3. The locking member 9 is mounted on the inclined plate 84, and the locking member 9 is connected to the plugs of the plurality of pulse signal lines 3.

[0050] The support member 83 includes a support rod 831, a contact bevel 832, a synchronization rod 833, a locking block 834 and a connecting spring 835. There are two support rods 831, which slide through both sides of the support shell 81. One end of the support rod 831 located inside the support shell 81 is fixedly connected to the contact bevel 832. The connecting spring 835 is sleeved on the outside of the support rod 831, and the two ends of the connecting spring 835 are fixedly connected to the contact bevel 832 and the inner wall of the support shell 81 respectively.

[0051] An opening 811 is provided on the support shell 81 at a position corresponding to the synchronization rod 833, one end of the synchronization rod 833 is fixedly connected to the contact bevel block 832, and the other end of the synchronization rod 833 is fixedly connected to the locking block 834, pushing the two sides of the bevel block 85 to be slidingly connected to the contact bevel block 832, and a connecting hole is provided on the pushing bevel block 85, and a threaded hole is provided on the support shell 81 at a position corresponding to the connecting hole, and a positioning bolt is threadedly connected to the threaded hole.

[0052] Two toothed bars 8341 are provided on one side of the locking block 834 , and a plurality of toothed grooves 821 are provided on one side of the supporting side plate 82 close to the supporting shell 81 , and the toothed bars 8341 are engaged with the toothed grooves 821 .

[0053] Specific implementation process: After the multiple high-pressure common rail injectors 4 are plugged into the oil separator body 2, the oil separator body 2 is connected to the detector body 1. At this time, the oil separator body 2 is placed between the two supporting side plates 82, and the nozzles of the high-pressure common rail injectors 4 are inserted downward into the measuring cups respectively. Subsequently, the inclined block 85 is inserted into the interior of the support shell 81 by pushing the inclined block 85. When the inclined block 85 is inserted, the two contact inclined blocks 832 are pushed synchronously. Due to the connection action of the contact inclined block 832 with the support rod 831, the further contact inclined block 832 drives the support rod 831 to move in the direction away from the pushing inclined block 85. At this time, the connecting spring 835 generates a reverse elastic force until one end of the pushing inclined block 85 is against one side of the oil separator body 2, and the connecting hole of the pushing inclined block 85 corresponds to the threaded hole. Subsequently, the positioning bolt is rotated so that the positioning bolt locks the pushing inclined block 85 through the connecting hole.

[0054] At the same time, as the two contact inclined blocks 832 move away from each other, the locking blocks 834 are driven by the synchronization rod 833 to contact the supporting side plates 82 respectively. At the same time, the toothed strips 8341 on the locking blocks 834 are engaged with the toothed grooves 821 on the supporting side plates 82. At this time, the two locking blocks 834 are in contact with the two supporting side plates 82, further achieving the function of supporting, locking and positioning the supporting shell 81 and the oil separator body 2.

[0055] At the same time, multiple pulse signal lines 3 are synchronously connected to the outside of the oil separator body 2.

[0056] The locking member 9 includes a locking plate 91, a sliding rod 92, a locking bolt 93 and a protective member 94. There are multiple sliding rods 92, and multiple sliding rods 92 all slide through the inclined plate 84, and multiple sliding rods 92 are fixedly connected to the locking plate 91. The locking bolt 93 is threadedly connected to the inclined plate 84, and one end of the locking bolt 93 is rotatably connected to the locking plate 91. Multiple pulse signal line 3 plugs are fixedly connected to the locking plate 91. Connection ports 911 are provided on both sides of the locking plate 91 and corresponding to the pulse signal line 3 plugs. There are multiple protective members 94, and the protective member 94 is located between the two connection ports 911.

[0057] The protective member 94 includes a movable plate 941, a movable spring 942 and a protective plate 943. There are two movable plates 941, one end of the two movable plates 941 slides through the two connecting ports 911 respectively, one end of the movable spring 942 is fixedly connected to the inner wall of the movable port 52, and the other end of the movable spring 942 is fixedly connected to the movable plate 941, the other end of the movable plate 941 is fixedly connected to the limiting block 944, and the protective plate 943 is provided with a limiting port corresponding to the position of the limiting block 944, and the limiting block 944 slides through the limiting port, the inner wall of the limiting port is fixedly connected to the limiting spring 945, and one end of the limiting spring 945 is fixedly connected to the movable plate 941;

[0058] The end of the protective plate 943 away from the movable plate 941 is wedge-shaped, and an arc block 946 is provided toward the plate 62 to limit and guide the protective plate 943.

[0059] Specific implementation process: In this embodiment, when the pulse signal line 3 plug is not connected to the electrical connector 41 of the high-pressure common rail injector 4, the movable plates 941 on both sides of the pulse signal line 3 connector 21 and the movable spring 942 are connected. The two movable plates 941 are moved to both sides of the pulse signal line 3 connector 21, and the two protective plates 943 are closest to each other. At this time, the two protective plates 943 protect the pulse signal line 3 plug, preventing the pulse signal line 3 plug from oxidizing when not in use, and further ensuring the sensitivity of the pulse signal line 3 plug in subsequent use;

[0060] At the same time, when multiple pulse signal line 3 plugs are connected to multiple electrical connectors 41 respectively, by rotating the locking bolt 93, the locking plate 91 is limited by multiple slide rods 92 and the inclined plate 84, and the multiple locking plates 91 move vertically along the inclined electrical connector 41. The two protective plates 943 on the outside of each pulse signal line 3 plug are respectively in contact with the facing plate 62, and the protective plate 943 moves in the direction away from the pulse signal line 3 plug through the moving plate 941. At the same time, the pulse signal line 3 plug is continuously and stably inserted into the electrical connector 41. At this time, the protective plate 943 is clamped and fixed again on the outside of the electrical connector 41 to further fix the electrical connector 41 and the pulse signal line 3 plug, thereby preventing the pulse signal line 3 plug from being unfixed and loosening during the cleanliness inspection.

[0061] Example 2

[0062] See also Figures 8 to 10 , Example 2 is a further supplementary explanation of Example 1, specifically: one end of the support rod 831 located outside the support shell 81 is fixedly connected to the limiting plate 86, and the limiting plate 86 is used to limit the support rod 831;

[0063] A further limiting plate 86 is located outside the supporting side plate 82 , thereby preventing one end of the supporting rod 831 from entering the interior of the supporting shell 81 .

[0064] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0065] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cleanliness detection device for a high-pressure common rail injector, comprising a detector body (1), an oil separator body (2) and a pulse signal line (3), characterized in that: The bottom of the oil separator body (2) is provided with a plurality of connectors (21) at equal distances, and the oil separator body (2) is connected to the high-pressure common rail injector (4) through the connectors (21); a connecting plate (5) is fixedly mounted on one side of the oil separator body (2), and a plurality of connecting orientation mechanisms (6) are provided on one side of the connecting plate (5); the plurality of connecting orientation mechanisms (6) respectively guide and limit the orientations of the electrical connectors (41) of the plurality of high-pressure common rail injectors (4), so that the plurality of pulse signal line (3) plugs are respectively inserted into the plurality of electrical connectors (41); The connecting plate (5) is provided with a synchronous adjustment mechanism (7), and the synchronous adjustment mechanism (7) is used to synchronously adjust the plurality of connecting orientation mechanisms (6); The other side of the oil separator body (2) is connected to a plug support mechanism (8), and the plug support mechanism (8) is used to simultaneously support multiple pulse signal line (3) plugs and assist the multiple pulse signal line (3) plugs in being inserted into multiple electrical connectors (41).

2. The cleanliness detection device for a high-pressure common rail injector according to claim 1, characterized in that: A guide rail (51) is provided on one side of the connecting plate (5) close to the oil separator body (2), and the plurality of connecting orientation mechanisms (6) are all slidably connected to the guide rail (51).

3. The cleanliness detection device for a high-pressure common rail injector according to claim 2, characterized in that: The connecting and directional mechanism (6) comprises a guide block (61), a directional plate (62) and a connecting piece (63). Two guide blocks (61) are provided. Both guide blocks (61) are slidably sleeved on the outside of the guide rail (51). One end of the directional plate (62) is fixedly connected to the guide block (61). The two directional plates (62) are arranged on both sides of the electrical connector (41) of the high-pressure common rail injector (4). The connecting piece (63) is connected between the two guide blocks (61). The connecting plate (5) is provided with a moving port (52) at a position corresponding to the connecting piece (63). The connecting piece (63) is connected to the synchronous adjustment mechanism (7).

4. The cleanliness detection device for a high-pressure common rail injector according to claim 3, characterized in that: The connecting member (63) includes a connecting rod (631) and a connecting shell (632). Two connecting rods (631) are provided. One end of the two connecting rods (631) is rotatably connected to the guide block (61) through a hinge support. The ends of the two connecting rods (631) close to each other are rotatably connected to the connecting shell (632) through a pin shaft. A connecting block (633) is fixedly connected to one side of the connecting shell (632). The connecting block (633) slides through the moving port (52), and one end of the connecting block (633) is connected to the synchronous adjustment mechanism (7).

5. The cleanliness detection device for a high-pressure common rail injector according to claim 4, characterized in that: The synchronous adjustment mechanism (7) comprises a synchronous plate (71) and an adjustment bolt (72); the synchronous plate (71) is arranged outside the connecting plate (5), and one end of each of the plurality of connecting blocks (633) is fixedly connected to the synchronous plate (71); the adjustment bolt (72) is rotatably connected to the top of the oil separator body (2), and the synchronous plate (71) is threadedly sleeved on the outside of the oil separator body (2).

6. The cleanliness detection device for a high-pressure common rail injector according to claim 1, characterized in that: The plug support mechanism (8) comprises a support shell (81), a support side plate (82), a support member (83), an inclined plate (84), a pushing inclined block (85) and a locking member (9). The support shell (81) is fixedly mounted on the other side of the oil separator body (2), and two support side plates (82) are provided. The two support side plates (82) are located at both ends of the support shell (81), and the support side plates (82) are fixedly mounted on the detector body (1). The support member (83) is arranged inside the support shell (81), and the pushing inclined block (85) slides through the support shell (81). One end of the pushing inclined block (85) is connected to the support member (83), and the other end of the pushing inclined block (85) is fixedly connected to the inclined plate (84). The locking member (9) is mounted on the inclined plate (84), and the locking member (9) is connected to the plugs of the plurality of pulse signal lines (3).

7. The cleanliness detection device for a high-pressure common rail injector according to claim 6, characterized in that: The support member (83) includes a support rod (831), a contact bevel block (832), a synchronization rod (833), a locking block (834) and a connecting spring (835). Two support rods (831) are provided. The two support rods (831) slide through the two sides of the support shell (81) respectively. One end of the support rod (831) located inside the support shell (81) is fixedly connected to the contact bevel block (832). The connecting spring (835) is sleeved on the outside of the support rod (831), and the two ends of the connecting spring (835) are fixedly connected to the contact bevel block (832) and the inner wall of the support shell (81) respectively. An opening (811) is provided on the support shell (81) at a position corresponding to the synchronization rod (833), one end of the synchronization rod (833) is fixedly connected to the contact inclined block (832), and the other end of the synchronization rod (833) is fixedly connected to the locking block (834), both sides of the pushing inclined block (85) are slidably connected to the contact inclined block (832), the pushing inclined block (85) is provided with a connecting hole, and a threaded hole is provided on the support shell (81) at a position corresponding to the connecting hole, and a positioning bolt is threadedly connected to the threaded hole.

8. The cleanliness detection device for a high-pressure common rail injector according to claim 7, characterized in that: Two toothed bars (8341) are provided on one side of the locking block (834), and a plurality of toothed grooves (821) are provided on the side of the supporting side plate (82) close to the supporting shell (81), and the toothed bars (8341) are engaged with the toothed grooves (821).

9. The cleanliness detection device for a high-pressure common rail injector according to claim 6, characterized in that: The locking member (9) includes a locking plate (91), a sliding rod (92), a locking bolt (93) and a protective member (94). There are multiple sliding rods (92), and multiple sliding rods (92) all slide through the inclined plate (84), and multiple sliding rods (92) are fixedly connected to the locking plate (91). The locking bolt (93) is threadedly connected to the inclined plate (84), and one end of the locking bolt (93) is rotatably connected to the locking plate (91). Multiple pulse signal line (3) plugs are fixedly connected to the locking plate (91). Connection ports (911) are provided on both sides of the locking plate (91) and corresponding to the pulse signal line (3) plugs. There are multiple protective members (94), and the protective member (94) is located between two connection ports (911).

10. The cleanliness detection device for a high-pressure common rail injector according to claim 9, characterized in that: The protective member (94) includes a movable plate (941), a movable spring (942) and a protective plate (943). Two movable plates (941) are provided. One end of the two movable plates (941) slides through the two connection ports (911) respectively. One end of the movable spring (942) is fixedly connected to the inner wall of the movable port (52), and the other end of the movable spring (942) is fixedly connected to the movable plate (941). The other end of the movable plate (941) is fixedly connected to a limiting block (944). The protective plate (943) is provided with a limiting port corresponding to the position of the limiting block (944), and the limiting block (944) slides through the limiting port. The inner wall of the limiting port is fixedly connected to a limiting spring (945), and one end of the limiting spring (945) is fixedly connected to the movable plate (941). One end of the protective plate (943) away from the movable plate (941) is wedge-shaped, and an arc block (946) is provided toward the plate (62), and the protective plate (943) is limited and guided by the arc block (946).

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