Flow testing tool for left piece and right piece of oil rail

Abstract

The utility model relates to the technical field of oil rail testing tools, and discloses an oil rail left and right piece flow testing tool which comprises a testing device, a connecting cylinder fixedly connected to the bottom of the testing device, a testing cylinder fixedly connected to the bottom of the connecting cylinder, a ventilation cylinder fixedly installed at the bottom of the testing cylinder, and a first connecting cylinder fixedly installed at one end of the ventilation cylinder. A first connecting cylinder is installed at one end of the ventilation cylinder, a first oil rail is connected to the middle of the first connecting cylinder in a clamped mode through a first clamping assembly, a second connecting cylinder is installed at the other end of the ventilation cylinder, a second oil rail is connected to the middle of the second connecting cylinder in a clamped mode, and second clamping assemblies are symmetrically arranged on the first clamping assembly relative to the second oil rail. A worker directly inserts the first oil rail and the second oil rail into the first connecting cylinder and the second connecting cylinder respectively, and in the insertion process, the firmness of the first oil rail and the second oil rail during installation is greatly improved through cooperation of structures such as a contact plate, a push rod, a partition plate and an installation spring.

Description

Technical Field

[0001] The utility model relates to the technical field of oil rail testing tooling, in particular to a flow testing tooling for left and right parts of an oil rail. Background Art

[0002] The left and right parts flow test fixture of the fuel rail is a device or tool combination specially used to test the flow performance of the left and right parts of the fuel rail in the fuel injection system. In the fuel injection system, the fuel rail is responsible for distributing high-pressure fuel to each injector. Therefore, the flow performance of the fuel rail and its components has an important impact on the working efficiency and fuel economy of the engine. When using the left and right parts flow test fixture of the fuel rail for testing, you first need to install the left and right parts of the fuel rail into the fixture and positioning device, and connect the flow test system. Then, set the test parameters through the control system and start the test process. During the test, the flow test system will measure and record the flow data of the left and right parts of the fuel rail in real time, and transmit the data to the data acquisition and analysis software for processing and analysis. Finally, evaluate whether the flow performance of the left and right parts of the fuel rail meets the design requirements based on the test results.

[0003] In the prior art, when testing the oil rail, nuts are mostly used to fix it. However, due to the different materials of the oil rail, when it is fixed by nuts, the installation may not be firm enough. If the installation is not firm, it will affect the test results. Therefore, it does not meet the existing needs. We propose a flow test tool for the left and right parts of the oil rail. Utility Model Content

[0004] The utility model provides a flow test tool for the left and right parts of an oil rail, which has the beneficial effect of firmly installing the oil rails of different materials, and solves the problem that in the prior art mentioned in the above background technology, when the oil rails are tested, nuts are mostly used to fix them. However, due to the different materials of the oil rails, when they are fixed by nuts, the installation may not be firm enough, and if the installation is not firm, the test results will be affected.

[0005] The utility model provides the following technical solution: a flow test tool for left and right parts of an oil rail, comprising a test device, a connecting cylinder fixedly connected to the bottom of the test device, a test cylinder fixedly connected to the bottom of the connecting cylinder, a breather cylinder fixedly installed on the bottom of the test cylinder, a first connecting cylinder fixedly installed on one end of the breather cylinder, a first connecting cylinder clamped and connected to a first oil rail in the middle of the first connecting cylinder through a first clamping assembly, a second connecting cylinder installed on the other end of the breather cylinder, a second connecting cylinder clamped and connected to a second oil rail in the middle of the second connecting cylinder, and a second clamping assembly symmetrically arranged with the second oil rail on the first clamping assembly.

[0006] As an optional scheme for the flow test tool for the left and right parts of the oil rail described in the utility model, wherein: a fixing cylinder is fixedly installed on the side of the breather cylinder, a mounting groove is opened in the middle of the fixing cylinder, a mounting spring is installed in the middle of the mounting groove, a partition is fixedly connected to the end of the mounting spring, a push rod is fixedly connected to the side of the partition, a contact plate is fixedly installed on the side of the push rod, and the contact plate is in contact with the second oil rail.

[0007] As an optional solution for the flow test tool for the left and right parts of the oil rail described in the utility model, wherein: the first clamping assembly includes a first limit rod fixedly connected to the side of the breather cylinder, and a first limit plate is inserted in the middle of the first limit rod.

[0008] As an optional scheme for the flow test tooling of the left and right parts of the oil rail described in the utility model, wherein: the first limit plate is fixedly connected to the side with a first limit spring, the first limit spring is fixedly connected to the side with a first arc plate, and the first locking bead is installed in the middle of the first arc plate.

[0009] As an optional solution for the flow test tool for the left and right parts of the oil rail described in the utility model, the second clamping assembly includes a second limit rod fixedly connected to the side of the breather cylinder, and a second limit plate is inserted in the middle of the second limit rod.

[0010] As an optional solution for the flow test tooling of the left and right parts of the oil rail described in the utility model, wherein: the second limit plate is fixedly connected to the side with a second limit spring, the second limit spring is fixedly connected to the side with a second arc plate, and a second locking bead is installed in the middle of the second arc plate.

[0011] As an optional solution for the flow test tooling of the left and right parts of the oil rail described in the utility model, wherein: the first limit rods are set as two symmetrical ones, the first arc plate is set as a rubber material plate, the first engaging bead is set as a rubber material bead, and the first engaging bead is engaged and connected with the second oil rail.

[0012] As an optional solution of the flow test tool for the left and right parts of the oil rail described in the utility model, wherein: the first oil rail side portion and the second oil rail side portion are both installed with the first clamping assembly and the second clamping assembly.

[0013] The utility model has the following beneficial effects:

[0014] 1. The left and right parts flow test fixture of the oil rail is provided with the first clamping assembly and the second clamping assembly. When installing and fixing the first oil rail and the second oil rail, the staff can directly plug the first oil rail and the second oil rail into the first connecting cylinder and the second connecting cylinder respectively. During the plugging process, the first oil rail and the second oil rail are clamped by the cooperation of structures such as the contact plate, the push rod, the partition plate, and the installation spring. The structure is relatively installed on both sides of the first oil rail and the second oil rail. Through the mutual cooperation between a series of structures, the firmness of the first oil rail and the second oil rail during installation is greatly improved.

[0015] 2. The flow rate test fixture for the left and right parts of the oil rail is provided with the first engaging component and the second engaging component. When the first oil rail and the second oil rail are tested, the first arc plate, the second arc plate, the first engaging bead and the second engaging bead are provided. While the first oil rail and the second oil rail are clamped, a hole is opened at the connection between the first oil rail and the second oil rail. The first engaging bead and the second engaging bead engage with the hole. Through the engagement process with the hole, the phenomenon of air leakage in the hole at the connection during the test is avoided as much as possible, thereby greatly improving the accuracy of the device in the measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the second oil rail plug-in structure of the utility model.

[0018] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0019] Figure 4 This is a schematic diagram of the structure of zone A of the present utility model.

[0020] Figure 5 This is a schematic diagram of the structure of zone B of the present utility model.

[0021] In the figure: 110, first oil rail; 120, second oil rail; 130, first connecting cylinder; 140, second connecting cylinder; 150, test cylinder; 160, connecting cylinder; 170, test device; 180, vent cylinder; 190, first limiting rod; 200, first limiting plate; 210, first limiting spring; 220, first arc plate; 230, first engaging bead; 240, fixing cylinder; 250, mounting groove; 260, mounting spring; 270, partition; 280, push rod; 290, contact plate; 300, second engaging bead; 310, second arc plate; 320, second limiting spring; 330, second limiting plate; 340, second limiting rod; 350, first engaging assembly; 360, second engaging assembly. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1: This embodiment is intended to promote the solution of the problem that in the prior art, when testing the oil rail, most of the time, nuts are used to fix it. However, due to the different materials of the oil rail, when it is fixed by nuts, the installation is not firm enough. If the installation is not firm, it will affect the test results. Please refer to Figure 1-Figure 5 A flow test tool for left and right parts of an oil rail, comprising a test device 170, a connecting cylinder 160 is fixedly connected to the bottom of the test device 170, a test cylinder 150 is fixedly connected to the bottom of the connecting cylinder 160, a breather cylinder 180 is fixedly installed at the bottom of the test cylinder 150, a first connecting cylinder 130 is fixedly installed at one end of the breather cylinder 180, a first connecting cylinder 130 is snap-connected to a first oil rail 110 in the middle of the first connecting cylinder 130 through a first snap-fit ​​assembly 350, a second connecting cylinder 140 is installed at the other end of the breather cylinder 180, a second connecting cylinder 140 is snap-connected to a second oil rail 120 in the middle of the second connecting cylinder 140, and the first snap-fit ​​assembly 350 is symmetrically arranged with a second snap-fit ​​assembly 360 with the second oil rail 120.

[0024] A fixing cylinder 240 is fixedly installed on the side of the breather cylinder 180, a mounting groove 250 is opened in the middle of the fixing cylinder 240, a mounting spring 260 is installed in the middle of the mounting groove 250, a partition 270 is fixedly connected to the end of the mounting spring 260, a push rod 280 is fixedly connected to the side of the partition 270, a contact plate 290 is fixedly installed on the side of the push rod 280, the contact plate 290 is in contact with the second oil rail 120, and the first clamping assembly 350 includes a first limit rod 190 fixedly connected to the side of the breather cylinder 180, and a first limit plate 200 is inserted in the middle of the first limit rod 190.

[0025] When the device is used, the staff first plugs the first oil rail 110 and the second oil rail 120 into the first connecting tube 130 and the second connecting tube 140 respectively. During the plugging process, the first oil rail 110 and the second oil rail 120 are connected to the contact plate 290 through the cooperation of the contact plate 290, the push rod 280, the partition plate 270, the installation spring 260 and other structures. Since the distance between the contact plates 290 is small, when the first oil rail 110 and the second oil rail 120 are plugged in, the contact plate 290 will push the push rod 280. Since the first oil rail 110 and the second oil rail 120 need to be plugged in, the contact plate 290 will push the push rod 280. In order to clamp the first oil rail 120, the push rod 280 is set as an elastic rod, so that the first oil rail 110 and the second oil rail 120 can be reinforced and fixed. When the oil rails are plugged in, they will contact the oil rails during the plugging process. Due to the small distance, the contact plate 290 will be squeezed. Since the push rod 280 and the partition plate 270 are both made of elastic materials, they will deform when the contact plate 290 is pushed, and the installation spring 260 will shrink due to the force, while supporting the fixing cylinder 240, so as to reduce the risk of deformation of the fixing cylinder 240 as much as possible, so that the oil rail can be clamped more firmly.

[0026] When testing the first oil rail 110 and the second oil rail 120, since a hole is usually provided at the connection of the oil rails, if the hole is not blocked, the test result will be affected during the test. By setting the first engaging bead 230 and the second engaging bead 300, when the first oil rail 110 and the second oil rail 120 are clamped, the first engaging bead 230 and the second engaging bead 300 will respectively engage with the holes on both sides of the oil rails. Since the engaging bead is made of rubber material, it will play a sealing role.

[0027] In this embodiment, by setting the first engaging assembly 350 and the second engaging assembly 360, when installing and fixing the first oil rail 110 and the second oil rail 120, the staff can directly insert the first oil rail 110 and the second oil rail 120 into the first connecting cylinder 130 and the second connecting cylinder 140 respectively. During the plugging process, the first oil rail 110 and the second oil rail 120 are clamped by the cooperation of structures such as the contact plate 290, the push rod 280, the partition plate 270, and the installation spring 260, and the first oil rail 110 and the second oil rail 120 are relatively installed on both sides. Through the mutual cooperation between a series of structures, the firmness of the first oil rail 110 and the second oil rail 120 during installation is greatly improved.

[0028] Embodiment 2: This embodiment is intended to promote the solution of the problem of not only firm installation but also good sealing during the test process. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-Figure 5A first limiting spring 210 is fixedly connected to the side of the first limiting plate 200 , a first arc plate 220 is fixedly connected to the side of the first limiting spring 210 , and a first engaging bead 230 is installed in the middle of the first arc plate 220 .

[0029] The second locking assembly 360 includes a second limiting rod 340 fixedly connected to the side of the ventilator 180, a second limiting plate 330 is inserted in the middle of the second limiting rod 340, a second limiting spring 320 is fixedly connected to the side of the second limiting plate 330, a second arc plate 310 is fixedly connected to the side of the second limiting spring 320, and a second locking bead 300 is installed in the middle of the second arc plate 310.

[0030] The first limiting rods 190 are arranged to be two symmetrical ones, the first arc plate 220 is arranged to be a rubber plate, the first engaging bead 230 is arranged to be a rubber bead, the first engaging bead 230 is engaged and connected with the second oil rail 120, and the first engaging assembly 350 and the second engaging assembly 360 are both installed on the side of the first oil rail 110 and the side of the second oil rail 120.

[0031] In this embodiment, by setting the first engaging assembly 350 and the second engaging assembly 360, when the first oil rail 110 and the second oil rail 120 are tested, by setting the first arc plate 220, the second arc plate 310, the first engaging bead 230 and the second engaging bead 300, while clamping the first oil rail 110 and the second oil rail 120, a hole is opened at the connection between the first oil rail 110 and the second oil rail 120, and the first engaging bead 230 and the second engaging bead 300 are engaged with the hole. By engaging with them, the phenomenon of air leakage in the hole at the connection during the test is avoided as much as possible, thereby greatly improving the accuracy of the device during the measurement process.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A flow test tool for left and right parts of an oil rail, comprising a test device (170), characterized in that: The bottom of the test device (170) is fixedly connected to a connecting cylinder (160), the bottom of the connecting cylinder (160) is fixedly connected to a testing cylinder (150), the bottom of the testing cylinder (150) is fixedly installed with a venting cylinder (180), one end of the venting cylinder (180) is fixedly installed with a first connecting cylinder (130), the middle of the first connecting cylinder (130) is snap-connected to a first oil rail (110) via a first snap-fit ​​assembly (350), the other end of the venting cylinder (180) is installed with a second connecting cylinder (140), the middle of the second connecting cylinder (140) is snap-connected to a second oil rail (120), and the first snap-fit ​​assembly (350) is symmetrically provided with a second snap-fit ​​assembly (360) with the second oil rail (120).

2. The flow test tool for the left and right parts of the fuel rail according to claim 1, characterized in that: A fixing cylinder (240) is fixedly installed on the side of the ventilation cylinder (180), a mounting groove (250) is opened in the middle of the fixing cylinder (240), a mounting spring (260) is installed in the middle of the mounting groove (250), a partition (270) is fixedly connected to the end of the mounting spring (260), a push rod (280) is fixedly connected to the side of the partition (270), a contact plate (290) is fixedly installed on the side of the push rod (280), and the contact plate (290) is in contact with the second oil rail (120).

3. The flow test tool for the left and right parts of the fuel rail according to claim 1, characterized in that: The first clamping assembly (350) comprises a first limiting rod (190) fixedly connected to the side of the ventilator (180), and a first limiting plate (200) is inserted into the middle of the first limiting rod (190).

4. The flow rate test tool for the left and right parts of the oil rail according to claim 3 is characterized by: A first limiting spring (210) is fixedly connected to the side of the first limiting plate (200), a first arc-shaped plate (220) is fixedly connected to the side of the first limiting spring (210), and a first locking bead (230) is installed in the middle of the first arc-shaped plate (220).

5. The flow test tool for left and right parts of a fuel rail according to claim 1, characterized in that: The second engaging assembly (360) comprises a second limiting rod (340) fixedly connected to the side of the ventilator (180), and a second limiting plate (330) is inserted into the middle of the second limiting rod (340).

6. The flow rate test tool for the left and right parts of the fuel rail according to claim 5, characterized in that: The second limiting plate (330) is fixedly connected to a second limiting spring (320) on its side, the second limiting spring (320) is fixedly connected to a second arc plate (310) on its side, and a second locking bead (300) is installed in the middle of the second arc plate (310).

7. The flow rate test tool for left and right parts of a fuel rail according to claim 4, characterized in that: The first limiting rods (190) are arranged in two symmetrical forms, the first arc-shaped plate (220) is arranged as a rubber plate, the first engaging bead (230) is arranged as a rubber bead, and the first engaging bead (230) is engaged and connected with the second oil rail (120).

8. The flow rate test tool for left and right parts of a fuel rail according to claim 1, characterized in that: The first clamping assembly (350) and the second clamping assembly (360) are both installed on the side of the first oil rail (110) and the side of the second oil rail (120).

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