A return oil pipe assembly inspection tool

Abstract

This utility model relates to the field of oil return pipe assembly testing, and relates to an oil return pipe assembly inspection tool. The utility model includes: a base and several sets of inspection blocks. The inspection blocks are fixed on the base and arranged according to the external shape of the oil return pipe assembly. Each inspection block has a through groove for accommodating the oil return pipe assembly. A sliding groove is vertically provided on the inspection block on the horizontal section of the oil return pipe assembly. A fixing component is slidably mounted within the sliding groove, and a spring is provided at the lower end of the fixing component. Magnetic blocks are provided on the lower side of the fixing component and the upper side of the sliding groove. By moving the fixing component downwards, the magnetic force between the magnetic blocks and the weight of the fixing component itself are made greater than the spring force, clamping the oil return pipe assembly into the through groove. This effectively prevents the oil return pipe from displacement or shaking due to external forces during testing, significantly improving the accuracy of the test data and operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of oil return pipe assembly testing, and relates to an oil return pipe assembly inspection tool. Background Technology

[0002] During the manufacturing process of the return pipe assembly, its dimensions, installation position accuracy, and other parameters directly affect the sealing performance and operational stability of the fuel system. Therefore, precise inspection of the return pipe assembly using a fixture is necessary. Existing return pipe assembly fixtures typically rely solely on the groove of the fixture block to limit the return pipe's position, lacking a reliable fixing structure. When the return pipe is placed in the groove of the fixture block, preliminary positioning is only achieved through the groove's outline. If external forces (such as manual measurement operations or equipment vibration) are applied during the inspection process, the return pipe is prone to displacement or shaking, leading to deviations in the inspection data.

[0003] Therefore, there is an urgent need for a return oil pipe assembly inspection tool with reliable fixing function to solve the problems of poor positioning, low detection accuracy and poor efficiency in the existing technology. Utility Model Content

[0004] This utility model provides a return oil pipe assembly inspection tool to solve the problems of the prior art.

[0005] The objective of this utility model can be achieved through the following technical solution: A return oil pipe assembly inspection tool includes: a base and several sets of inspection blocks. The several sets of inspection blocks are fixed on the base and arranged according to the outer shape of the return oil pipe assembly. The inspection blocks are provided with through grooves to accommodate the return oil pipe assembly. The inspection blocks on the horizontal section of the return oil pipe assembly are provided with vertical sliding grooves. A fixing component is slidably provided in the sliding grooves. A spring is provided at the lower end of the fixing component. Magnetic blocks are provided on the lower side of the fixing component and the upper side of the sliding groove. By moving the fixing component down, the magnetic force between the magnetic blocks and the weight of the fixing component itself are greater than the elastic force of the spring, thus clamping the return oil pipe assembly in the through groove.

[0006] In a further improvement, the fixing component includes a pressure block and a guide rod. The pressure block is slidably disposed in a groove. The upper end of the guide rod is fixedly connected to the lower end of the pressure block. The groove has a through hole inside. The lower end of the guide rod is slidably disposed in the through hole. The spring is sleeved on the guide rod and located between the pressure block and the groove. The upper magnetic block is fixed to the bottom outer side of the pressure block, and the lower magnetic block is fixed to the upper outer side of the groove. The pressure block has a circular pressure groove inside.

[0007] In a further improvement, a slot is connected to both sides of the slide, and a slotted block is provided at the bottom of the pressure block to match the slot.

[0008] In a further improvement, the through groove is a circular groove.

[0009] As a further improvement, the base is provided with an end gauge block.

[0010] Compared with the prior art, the advantages of this utility model's return oil pipe assembly inspection tool are:

[0011] By combining the gauge block with a sliding fixing component, and setting a groove with a spring and a magnetic block in the horizontal section of the gauge block, the fixing component can achieve mechanical conversion between the spring force and the magnetic force of the magnetic block during the downward movement, thereby clamping the return oil pipe assembly. Compared with traditional gauges without a fixing structure, this effectively avoids displacement or shaking of the return oil pipe due to external forces during testing, significantly improving the accuracy of test data and operational efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Figure 2 This is a structural schematic diagram of another state of the present invention.

[0014] Figure 3 for Figure 1 Schematic diagram of the enlarged part

[0015] Figure 4 for Figure 2 Schematic diagram of the enlarged part

[0016] Figure 5 for Figure 4 Another perspective on the structure

[0017] In the figure, 1-base, 2-inspection block, 21-through groove, 22-slide groove, 221-slotted groove, 23-through hole, 3-oil return pipe assembly, 4-fixed component, 41-pressure block, 411-circular pressure groove, 412-slotted block, 42-guide rod, 5-spring, 6-magnetic block, 7-end inspection block. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] The following describes the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0020] Example 1

[0021] A return pipe assembly inspection fixture includes: a base 1 and several sets of inspection blocks 2. The several sets of inspection blocks 2 are fixed on the base 1 and arranged according to the outer shape of the return pipe assembly 3. The inspection blocks 2 are provided with a through groove 21 to accommodate the return pipe assembly 3. The inspection blocks 2 on the horizontal section of the return pipe assembly 3 are provided with a vertical sliding groove 22. A fixing component 4 is slidably arranged in the sliding groove 22. A spring 5 is provided at the lower end of the fixing component 4. Magnetic blocks 6 are provided on the lower side of the fixing component 4 and the upper side of the sliding groove 22. By moving the fixing component 4 down, the magnetic force between the magnetic blocks 6 and the weight of the fixing component 4 itself are greater than the elastic force of the spring 5, thus clamping the return pipe assembly 3 in the through groove 21.

[0022] As a further preferred embodiment, the fixing component 4 includes a pressure block 41 and a guide rod 42. The pressure block 41 is slidably disposed in the slide groove 22. The upper end of the guide rod 42 is fixedly connected to the lower end of the pressure block 41. The slide groove 22 is provided with a through hole 23. The lower end of the guide rod 42 is slidably disposed in the through hole 23. The spring 5 is sleeved on the guide rod 42 and located between the pressure block 41 and the slide groove 22. The upper magnetic block 6 is fixed to the bottom outer side of the pressure block 41, and the lower magnetic block 6 is fixed to the upper outer side of the slide groove 22. The pressure block 41 is provided with a circular pressure groove 411 inside.

[0023] The guide rod engages with the through hole to guide the up-and-down sliding of the pressure block; the spring is sleeved on the guide rod, storing elastic potential energy when compressed and providing an upward thrust when released, thus realizing the reset function of the pressure block; the upper magnetic block is fixed to the bottom of the pressure block, and the lower magnetic block is fixed to the upper part of the slide groove. The two are arranged opposite each other. When the pressure block is pressed down to a specific position, the magnetic force increases sharply and locks the pressure block; the circular pressure groove inside the pressure block matches the shape of the outer surface of the return oil pipe (usually circular), so that pressure can be applied evenly when pressed down, avoiding local stress concentration that could cause pipeline deformation.

[0024] As a further preferred embodiment, the slide groove 22 has a slot 221 connected to both sides, and the bottom of the pressure block 41 is provided with a block 411 that matches the slot 221. The slot and the block form a sliding limiting structure. When the pressure block slides in the slide groove, the block is embedded in the slot, restricting the pressure block from rotating around the guide rod axis, ensuring sliding stability and that the magnetic pole direction of the magnetic block is always aligned.

[0025] As a further preferred embodiment, the through groove 21 is a circular groove. The circular through groove perfectly matches the contour of the pipe body, providing uniform support to the pipe in the circumferential direction and limiting the radial movement and swaying of the pipe within the groove.

[0026] As a further preferred embodiment, the base 1 is provided with an end gauge block 7. The end gauge block is used to fix both ends of the return oil pipe (such as the interface end and the closed end) and limit the end of the pipeline.

[0027] As shown in the figure, the working principle of this utility model is as follows: the gauge blocks on the base are arranged according to the outer shape of the oil return pipe assembly, and the through groove can accommodate the oil return pipe, so that the pipeline initially fits the outline of the gauge and completes the shape positioning.

[0028] Then, in the initial state, the fixed components (pressure block and guide rod) are above the slide groove under the action of spring force. At this time, the height difference between the pressure block and the gauge block is X1. The spring force F1 is greater than the sum of the weight of the pressure block and the initial magnetic force M1 of the magnetic block. The pressure block is supported by the spring and does not contact the return oil pipe.

[0029] Pressing down on the pressure block causes the guide rod to slide within the through hole, compressing the spring and reducing the height difference to X2. At this point, the spring force F2 decreases, and simultaneously, the distance between the pressure block and the magnetic block on the fixture block shortens, increasing the magnetic force M2. When the sum of M2 and the weight of the pressure block exceeds F2, the magnetic blocks attract each other, causing the pressure block to press down and clamp the return oil pipe within the through groove through the circular pressure groove. By designing the spring constant and the magnetic strength of the magnetic blocks, the relationship between the spring force and the magnetic force changes when the height difference changes, achieving automatic locking from "spring support to magnetic clamping," thus securing the pipeline without additional tools.

[0030] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A tooling for inspecting return oil pipe assemblies, characterized in that, include: The system includes a base and several sets of inspection blocks. The inspection blocks are fixed to the base and arranged according to the shape of the return oil pipe assembly. Each inspection block has a through groove to accommodate the return oil pipe assembly. The inspection blocks on the horizontal section of the return oil pipe assembly have vertical sliding grooves. A fixing component is slidably installed in the sliding groove, and a spring is installed at the lower end of the fixing component. Magnetic blocks are installed on the lower side of the fixing component and the upper side of the sliding groove. By moving the fixing component down, the magnetic force between the magnetic blocks and the weight of the fixing component itself are greater than the elastic force of the spring, thus clamping the return oil pipe assembly in the through groove.

2. The return oil pipe assembly inspection tool according to claim 1, characterized in that, The fixing assembly includes a pressure block and a guide rod. The pressure block is slidably disposed in a groove. The upper end of the guide rod is fixedly connected to the lower end of the pressure block. The groove has a through hole inside. The lower end of the guide rod is slidably disposed in the through hole. The spring is sleeved on the guide rod and located between the pressure block and the groove. The upper magnetic block is fixed to the bottom outer side of the pressure block, and the lower magnetic block is fixed to the upper outer side of the groove. The pressure block has a circular pressure groove inside.

3. The return oil pipe assembly inspection tool according to claim 1, characterized in that, The two sides of the slide are connected by a groove, and the bottom of the pressure block is provided with a block that matches the groove.

4. The return oil pipe assembly inspection tool according to claim 1, characterized in that, The through groove is a circular groove.

5. The return oil pipe assembly inspection tool according to claim 1, characterized in that, The base is equipped with an end gauge block.

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