Center distance detection device for high-pressure oil rail

Abstract

The utility model discloses a high pressure oil rail center distance detection device, which comprises a main ruler body and a caliper digital display meter body, the end part of the main ruler body is fixedly provided with a static clamp, the caliper digital display meter body is provided with a movable clamp, an adjusting mechanism is arranged between the static clamp and the main ruler body, the adjusting mechanism comprises a calibration plate, and the calibration plate is fixedly connected to one end of the main ruler body; the first clamp seat is fixedly connected to the side, right facing the main ruler body, of the static clamp, and a mounting through hole movably connected with the outer wall of the calibration plate in a sleeving mode is formed in the top of the first clamp seat; and the locking piece is mounted on one side of the first clamp seat. According to the utility model, the position of the static clamp positioned at the end part of the main ruler body can be adjusted along the extension direction of the main ruler body, so that the position of the static clamp can be adjusted after the static clamp on the main ruler body is replaced, the zero calibration of the caliper digital display meter body can be achieved after the movable clamp and the static clamp are attached, the use is flexible and convenient, and the work efficiency is improved. And meanwhile, the high-pressure oil rail center distance detection quality of the caliper is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of center distance detection devices, in particular to a center distance detection device for a high-pressure oil rail. Background Art

[0002] The high-pressure fuel rail is a key component of the fuel supply system for diesel engines. It is usually composed of a metal pipe with sealing properties, which is installed on the engine and connected to the fuel nozzle or injector. Its main function is to transport the fuel from the fuel pump to the fuel nozzle and spray it into the combustion chamber of the engine at high pressure. The center distance of the high-pressure fuel rail has a direct impact on the injection accuracy. If the center distance of the high-pressure fuel rail deviates from the specified value, it is easy to cause uneven or inaccurate fuel injection from the injector, affecting the combustion efficiency and performance of the engine.

[0003] In the prior art, the detection of the center distance of the high-pressure oil rail is generally measured directly by a caliper. When the caliper currently used is used for the detection of the center distance of the high-pressure oil rail, in order to adapt to the detection of various center distances of the high-pressure oil rail, the clamp on the caliper needs to be adaptively replaced. However, the clamp on the current caliper cannot be calibrated after replacement, which easily leads to errors in the measurement results and affects the work quality of the center distance detection operation of the high-pressure oil rail. Therefore, a high-pressure oil rail center distance detection device is proposed. Utility Model Content

[0004] The utility model aims to provide a center distance detection device for a high-pressure oil rail to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a center distance detection device for a high-pressure oil rail, comprising a main scale body and a caliper digital display meter body that can move along the extension direction of the main scale body, a static clamp is fixedly provided at the end of the main scale body, a dynamic clamp that can move with the caliper digital display meter body is provided on the caliper digital display meter body, an adjustment mechanism for calibrating the position of the static clamp is provided between the static clamp and the main scale body, and the adjustment mechanism comprises:

[0006] A calibration plate, the calibration plate being fixedly connected to one end of the main ruler body;

[0007] A first clamp seat, the first clamp seat is fixedly connected to a side of the static clamp facing the main ruler body, and a mounting through hole movably sleeved with an outer wall of the calibration plate is provided on the top of the first clamp seat;

[0008] A locking member is installed on a side of the first clamp seat away from the static clamp, and is used to lock the position of the first clamp seat on the calibration plate.

[0009] Preferably, the locking member is a clamping screw, an inner screw hole connected to the mounting through hole is formed on a side of the first clamp seat away from the static clamp, and an outer wall of the clamping screw is threadedly connected to the inner screw hole.

[0010] Preferably, a second clamp seat is fixedly provided on the side wall of the caliper digital display body, and both the static clamp and the dynamic clamp are provided with mounting structures for positioning between the static clamp and the first clamp seat and between the dynamic clamp and the second clamp seat.

[0011] Preferably, the mounting structure comprises a connecting seat fixedly connected to the static clamp and the dynamic clamp on the side facing the main ruler body, the first clamp seat and the second clamp seat are provided with a positioning groove on the same side, and the outer wall of the connecting seat is movably connected to the positioning groove.

[0012] Preferably, the first clamp seat and the second clamp seat are both provided with mounting grooves connected with the positioning groove, a translationally movable locking rod is movably provided in the mounting groove at a position connected with the positioning groove, and a positioning hole matching the locking rod is provided on the side of the connecting seat facing the locking rod.

[0013] Preferably, a driving rod is movably provided on one side of the installation groove, the driving rod is L-shaped and one end of which extends to the outside, the other end of the driving rod is fixedly connected to the outer wall of the locking rod, and a reset spring is fixedly connected between the driving rod and the inner wall of the installation groove.

[0014] Technical effects and advantages of the utility model:

[0015] The utility model can realize the position adjustment of the static clamp located at the end of the main scale body along the extension direction of the main scale body, so that after the static clamp on the main scale body is replaced, its position can be adjusted, so that the caliper digital display meter body can be zeroed after the dynamic clamp and the static clamp are fitted together, which is not only flexible and convenient to use, but also improves the quality of the caliper in detecting the center distance of the high-pressure oil rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the clamp of the utility model.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the first clamp seat of the utility model.

[0019] Figure 4 It is a schematic diagram of the top cross-sectional structure of the second clamp seat of the utility model.

[0020] In the figure: 100, main scale body; 200, caliper digital display meter body; 300, static clamp; 301, first clamp seat; 302, calibration plate; 303, mounting through hole; 304, clamping screw; 400, dynamic clamp; 401, second clamp seat; 500, positioning groove; 501, mounting groove; 502, driving rod; 503, reset spring; 504, connecting seat; 505, positioning hole; 506, locking rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4The center distance detection device of a high-pressure oil rail shown in the figure comprises a main scale body 100 and a caliper digital display meter body 200 which can move along the extension direction of the main scale body 100. When the caliper digital display meter body 200 moves on the outer wall of the main scale body 100, the moving distance can be numerically displayed on its own display screen, which can facilitate the user to intuitively understand the value of the measured object. A static clamp 300 is fixedly arranged at the end of the main scale body 100, and a dynamic clamp 400 which can move with the caliper digital display meter body 200 is arranged on the caliper digital display meter body 200. After the dynamic clamp 400 moves on the main scale body 100 with the caliper digital display meter body 200, the outer wall of the detected object is clamped on the opposite sides of the dynamic clamp 400 and the static clamp 300 respectively, and the detected object is observed by observing the static clamp 400. The value displayed on the display screen of the caliper digital display meter body 200 can intuitively know the detection value of the detected object. In this embodiment, by clamping the dynamic clamp 400 and the static clamp 300 on the two end points of the high-pressure oil rail, and then calculating and analyzing the center distance of the high-pressure oil rail according to the measurement results, an adjustment mechanism for position calibration of the static clamp 300 is provided between the static clamp 300 and the main scale body 100, and the adjustment mechanism includes: a calibration plate 302, the calibration plate 302 is fixedly connected to one end of the main scale body 100; a first clamp seat 301, the first clamp seat 301 is fixedly connected to the side of the static clamp 300 facing the main scale body 100, and a mounting through hole 303 movably sleeved with the outer wall of the calibration plate 302 is opened on the top of the first clamp seat 301; a locking member, locking The component is installed on the side of the first clamp seat 301 away from the static clamp 300, and is used to lock the position of the first clamp seat 301 on the calibration plate 302. Since the mounting through hole 303 on the first clamp seat 301 is movably connected with the outer wall of the calibration plate 302, the first clamp seat 301 can move along the axial direction of the outer wall of the calibration plate 302 to adjust the initial position of the static clamp 300. In this way, after the dynamic clamp 400 and the static clamp 300 are fitted together, the initial value on the display screen of the caliper digital display meter body 200 is zero. After the initial value on the display screen of the caliper digital display meter body 200 is adjusted to zero, the calibration operation can be completed by simply locking the position between the first clamp seat 301 and the calibration plate 302 through the locking component. The operation is simple and convenient. To avoid measurement errors caused by replacing different static clamps 300 and dynamic clamps 400 on the caliper, in the preferred embodiment, the locking member is a clamping screw 304, and an inner screw hole connected to the mounting through hole 303 is provided on the side of the first clamp seat 301 away from the static clamp 300, and the outer wall of the clamping screw 304 is threadedly connected to the inner screw hole. In this embodiment, the clamping screw 304 is threadedly connected to the side wall of the first clamp seat 301, so that the clamping screw 304 can be moved into the mounting through hole 303 by rotation to squeeze the outer wall of the calibration plate 302, and the position between the first clamp seat 301 and the calibration plate 302 is fixed by the extrusion force. At the same time, to unlock, you only need to reversely rotate the clamping screw 304, which is flexible and convenient to operate and easy to use.

[0023] Furthermore, a second clamp seat 401 is fixedly provided on the side wall of the caliper digital display meter body 200, and a mounting structure is provided on both the static clamp 300 and the dynamic clamp 400 for positioning between the static clamp 300 and the first clamp seat 301 and between the dynamic clamp 400 and the second clamp seat 401. The static clamp 300 is installed on the first clamp seat 301 and the dynamic clamp 400 is installed on the second clamp seat 401 through the mounting structure, so as to realize the detachable function of the dynamic clamp 400 and the static clamp 300. In this embodiment, the mounting structure includes a fixed connection to the static clamp 300 and the dynamic clamp 400 facing the main ruler body 100. A connecting seat 504 on one side, a positioning groove 500 is provided on the same side of the first clamp seat 301 and the second clamp seat 401, the outer wall of the connecting seat 504 is movably plugged with the positioning groove 500, the first clamp seat 301 and the second clamp seat 401 are provided with a mounting groove 501 connected to the positioning groove 500, a translationally movable locking rod 506 is movably provided at a position connected to the positioning groove 500 in the mounting groove 501, a positioning hole 505 matching the locking rod 506 is provided on the side of the connecting seat 504 facing the locking rod 506, a driving rod 502 is movably provided on one side of the mounting groove 501, and the driving rod 502 is L-shaped and its One end extends to the outside, and the other end of the driving rod 502 is fixedly connected to the outer wall of the locking rod 506. A return spring 503 is fixedly connected between the driving rod 502 and the inner wall of the installation groove 501. By inserting the connecting seat 504 on the side wall of the static clamp 300 and the dynamic clamp 400 into the positioning groove 500 of the first clamp seat 301 and the second clamp seat 401, and pressing the driving rod 502 at the same time, the driving rod 502 drives the locking rod 506 to retract into the installation groove 501. At this time, the return spring 503 is compressed and deformed to produce an elastic reaction force. After the connecting seat 504 is fully inserted into the positioning groove 500, the driving rod 502 is released. The pressing pressure drives the locking rod 506 and the driving rod 502 to move in opposite directions through the elastic reaction force of the reset spring 503, so that the locking rod 506 can be inserted into the positioning hole 505 of the connecting seat 504, completing the locking of the position between the connecting seat 504 and the positioning groove 500, thereby realizing the locking of the position of the static clamp 300 and the dynamic clamp 400. For disassembly, you only need to continue pressing the driving rod 502 to drive the locking rod 506 to separate from the positioning hole 505, and then the static clamp 300 and the dynamic clamp 400 as well as the connecting seat 504 thereon can be pulled out together, making the disassembly and replacement of the dynamic clamp 400 and the static clamp 300 simple and convenient.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 center distance detection device for a high-pressure oil rail, comprising a main scale body (100) and a caliper digital display meter body (200) movable along the extension direction of the main scale body (100), a static clamp (300) fixedly provided at the end of the main scale body (100), and a dynamic clamp (400) movable with the caliper digital display meter body (200), characterized in that: An adjustment mechanism for calibrating the position of the static clamp (300) is provided between the static clamp (300) and the main ruler body (100), and the adjustment mechanism comprises: A calibration plate (302), wherein the calibration plate (302) is fixedly connected to one end of the main ruler body (100); A first clamp seat (301), the first clamp seat (301) being fixedly connected to a side of the static clamp (300) facing the main ruler body (100), and a mounting through hole (303) movably sleeved with an outer wall of the calibration plate (302) is provided on the top of the first clamp seat (301); A locking member is installed on a side of the first clamp seat (301) away from the static clamp (300) and is used to lock the position of the first clamp seat (301) on the calibration plate (302).

2. A center distance detection device for a high-pressure fuel rail according to claim 1, characterized in that: The locking member is a clamping screw (304); an inner screw hole connected to the mounting through hole (303) is provided on the side of the first clamp seat (301) away from the static clamp (300); and the outer wall of the clamping screw (304) is threadedly connected to the inner screw hole.

3. A center distance detection device for a high-pressure fuel rail according to claim 2, characterized in that: A second clamp seat (401) is fixedly provided on the side wall of the caliper digital display body (200), and mounting structures are provided on the static clamp (300) and the dynamic clamp (400) for positioning between the static clamp (300) and the first clamp seat (301) and between the dynamic clamp (400) and the second clamp seat (401).

4. A center distance detection device for a high-pressure fuel rail according to claim 3, characterized in that: The mounting structure comprises a connecting seat (504) fixedly connected to a side of the static clamp (300) and the dynamic clamp (400) facing the main ruler (100); a positioning groove (500) is provided on the same side of the first clamp seat (301) and the second clamp seat (401); and an outer wall of the connecting seat (504) is movably plugged into the positioning groove (500).

5. A center distance detection device for a high-pressure fuel rail according to claim 4, characterized in that: The first clamp seat (301) and the second clamp seat (401) are both provided with an installation groove (501) connected to the positioning groove (500), and a translationally movable locking rod (506) is movably provided in the installation groove (501) at a position connected to the positioning groove (500), and a positioning hole (505) matching the locking rod (506) is provided on one side of the connecting seat (504) facing the locking rod (506).

6. A center distance detection device for a high-pressure fuel rail according to claim 5, characterized in that: A driving rod (502) is movably provided on one side of the installation groove (501); the driving rod (502) is L-shaped and one end of the driving rod (502) extends to the outside; the other end of the driving rod (502) is fixedly connected to the outer wall of the locking rod (506); and a return spring (503) is fixedly connected between the driving rod (502) and the inner wall of the installation groove (501).

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