Air tightness detection positioning tool for oil inlet pipe

Abstract

The utility model belongs to the technical field of oil pipe airtightness detection, and discloses an oil inlet pipe airtightness detection positioning tool which comprises a support, a testing pool fixedly installed at the lower end of the support, a sliding frame slidably connected to the inner side of the support, and a first air cylinder fixedly installed at the upper end of the support and driving the sliding frame to slide. A first positioning sealing group and a second positioning sealing group are arranged on the sliding frame, and the first positioning sealing group and the second positioning sealing group are perpendicular to each other; the oil inlet pipe sealing and positioning device is simple in overall structure, can quickly seal and position the oil inlet pipe to be detected, can be suitable for sealing and positioning detection of oil inlet pipes of various models, and improves the use effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil pipe air tightness detection, and specifically relates to an oil inlet pipe air tightness detection and positioning tool. Background Art

[0002] In modern industrial production, the sealing test of oil pipes is an important part of ensuring product quality and safety. In particular, the airtightness of the oil inlet pipe, as a key component of fluid transmission, directly affects the normal operation and safety of the equipment. Figure 2 Shown is an oil inlet pipe.

[0003] After the oil inlet pipe is produced and prepared, it is necessary to test its sealing to prevent oil leakage during use. In the prior art, the oil inlet pipe is generally tested for airtightness by a special airtightness testing machine. Due to the various types of oil inlet pipes, multiple sets of clamping tables for airtightness testing need to be equipped. The testing cost for mass-produced oil inlet pipes is relatively low, but for some small-batch produced oil inlet pipes (such as ships), if a special airtightness testing machine is purchased, the testing cost of a single oil inlet pipe is relatively high.

[0004] A Chinese patent with application number CN202220825486.2 discloses an oil inlet pipe air tightness detection assembly, including a mounting bottom beam; a first plugging assembly, the first plugging assembly is fixed on the mounting bottom beam, including a positioning cylinder fixed on the mounting bottom beam, a first blocking plate is movably connected in the positioning cylinder, a connecting rod is fixed at the bottom of the first blocking plate, a first sealing gasket is pasted on the first blocking plate, a plurality of first fastening screws are also fixed on the first blocking plate, and the first fastening screws correspond to the connecting holes on the ring flange of the oil inlet pipe; a supporting assembly, the supporting assembly includes a connecting vertical rod, and the connecting vertical rod has a supporting portion; a second plugging assembly, the second plugging assembly includes a second blocking plate, a second sealing gasket is pasted on the second blocking plate, a plurality of second fastening screws are fixed on the second blocking plate, the second fastening screws correspond to the connecting holes on the method flange of the oil inlet pipe, and an air pipe joint is connected to the second blocking plate through an air injection hole; the utility model can block both ends of the oil inlet pipe, so as to facilitate the detection of the air tightness of the oil inlet pipe.

[0005] However, in the utility model, the first fastening screw and the second fastening screw are used for fixing and sealing at both ends when sealing, which requires manual operation, is cumbersome, and increases labor intensity. Moreover, although the utility model can be used with oil inlet pipes of different lengths, when the models of the ring flanges at both ends of the oil inlet pipe are changed, the first fastening screw and the second fastening screw on the first blocking plate and the second blocking plate in the component are not matched, and the application range is small. Utility Model Content

[0006] The main technical problem to be solved by the utility model is to provide an oil inlet pipe airtight detection and positioning tooling which has a simple overall structure, can quickly perform sealing and positioning on the oil inlet pipe to be tested, and can also be applied to perform sealing and positioning detection on various types of oil inlet pipes, thereby improving the use effect.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] An oil inlet pipe air tightness detection and positioning tool comprises a bracket, a test pool is fixedly installed at the lower end of the bracket, a sliding frame is slidably connected to the inner side of the bracket, a first cylinder driving the sliding frame to slide is fixedly installed at the upper end of the bracket, a first positioning seal group and a second positioning seal group are arranged on the sliding frame, and the first positioning seal group and the second positioning seal group are perpendicular to each other;

[0009] The first positioning sealing group includes a second cylinder, a first positioning shaft is fixedly installed on the power output end of the second cylinder, a positioning plate is fixedly installed on the outer surface of the first positioning shaft end, a first sealing gasket is top-connected to the surface of the positioning plate, and the first sealing gasket is simultaneously sleeved on the first positioning shaft.

[0010] The following is a further optimization of the above technical solution by the utility model:

[0011] The end surface of the first positioning shaft is provided with a second air hole, the surface of the first positioning shaft is provided with a first air hole, and the first air hole is communicated with the second air hole.

[0012] Further optimization: an air pipe joint is connected to the first air hole on the first positioning axis.

[0013] Further optimization: two first connecting bars are vertically arranged on the end surface of the second cylinder close to the power output end, and the same first vertical plate is vertically arranged at the ends of the two first connecting bars.

[0014] Further optimization: the second positioning sealing group includes a third cylinder, and a contact plate is fixedly installed on the power output end of the third cylinder.

[0015] Further optimization: the surface of the contact plate is top-connected with a second sealing gasket, and the second sealing gasket is simultaneously sleeved on the power output end of the third cylinder.

[0016] Further optimization: two locating pins are inserted at positions near the edge of the contact plate, the two locating pins are symmetrically arranged, and the two locating pins penetrate the second sealing gasket.

[0017] Further optimization: two second connecting bars are vertically arranged on the end surface of the third cylinder close to the power output end, and the same second vertical plate is vertically arranged at the ends of the two second connecting bars.

[0018] The utility model adopts the above technical scheme, has ingenious conception and reasonable structure, can quickly position, seal and install the oil inlet pipe, reduces the labor intensity of workers, is simple to operate, increases the scope of use, is convenient to use, can improve production efficiency, is safe and reliable, is easy to operate, and has a simple overall structure, is easy to manufacture and produce, can reduce production and use costs, and improve economic benefits.

[0019] And the tooling can be applied to various oil inlet pipe models for testing. During positioning and installation, workers only need to connect one end of the oil inlet pipe flange with the second sealing gasket, insert the mounting hole of the flange into the corresponding positioning pin, and connect the outer surface of the oil inlet pipe into the second U-shaped groove. Then, the other end of the oil inlet pipe is inserted into the first positioning shaft, and the other end face of the oil inlet pipe is connected with the first sealing gasket. The outer surface of the oil inlet pipe is connected into the first U-shaped groove. Then, the second cylinder and the third cylinder are controlled to start to complete the positioning and sealing installation of the oil inlet pipe. The whole operation process is simple, the operating intensity of workers is reduced, the application range is wide, and it is easy to use.

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the installation of the oil inlet pipe test in Example 1 of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the oil inlet pipe in Example 1 of the utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of Example 1 of the utility model;

[0024] Figure 4 It is a partial schematic diagram of the overall structure in Example 1 of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the positioning device in Example 1 of the utility model.

[0026] In the figure: 1-bracket; 2-test pool; 3-pulley block; 4-sliding frame; 41-support plate; 42-rotating shaft; 43-roller; 5-first positioning sealing group; 51-second cylinder; 52-first positioning shaft; 530-first air hole; 531-second air hole; 54-trachea joint; 55-positioning plate; 56-first sealing pad; 57-first support frame; 570-first connecting strip; 571-first vertical plate; 572-first U-shaped groove; 6-second positioning sealing group; 61-third cylinder; 62-contact plate; 63-second sealing pad; 64-positioning pin; 65-second support frame; 650-second connecting strip; 651-second vertical plate; 652-second U-shaped groove; 7-first cylinder. DETAILED DESCRIPTION

[0027] like Figure 3-5 As shown: an oil inlet pipe air tightness detection and positioning tooling, including a bracket 1, a test pool 2 is fixedly installed at the lower end of the bracket 1, a sliding frame 4 is slidably connected to the inner side of the bracket 1, a first cylinder 7 for driving the sliding frame 4 to slide is fixedly installed at the upper end of the bracket 1, and a first positioning seal group 5 and a second positioning seal group 6 are arranged on the sliding frame 4, and the first positioning seal group 5 and the second positioning seal group 6 are perpendicular to each other.

[0028] In this embodiment 1, the bracket 1 is made by welding a plurality of U-shaped channel steels of different lengths.

[0029] The test pool 2 is made of a plurality of stainless steel plates of different types. The test liquid is placed in the test pool 2. In this embodiment 1, the test liquid used is water.

[0030] The two inner sides of the bracket 1 are fixedly mounted with symmetrically arranged pulley blocks 3 .

[0031] The pulley block 3 includes two support plates 41 fixedly mounted on both end surfaces of the bracket 1 . The two support plates 41 are disposed above the test pool 2 , and the two support plates 41 are symmetrically arranged.

[0032] The same rotating shaft 42 is fixedly mounted at the ends of the two supporting plates 41 .

[0033] A roller 43 is rotatably connected to the rotating shaft 42 , and the sliding frame 4 slides up and down along the roller 43 .

[0034] The sliding frame 4 includes an upper frame and a lower frame, and the upper frame and the lower frame are arranged vertically.

[0035] The upper frame and the lower frame are respectively made of U-shaped channel steels of different lengths welded together.

[0036] The U-shaped surface of the U-shaped channel steel on the upper frame is arranged outward.

[0037] The U-shaped surface of the U-shaped channel steel corresponding to the pulley block 3 of the upper frame is in contact with the roller 43 to achieve sliding.

[0038] The power output end of the first cylinder 7 is fixedly connected to the upper end surface of the upper frame.

[0039] With this design, when the first cylinder 7 is started, the power output end of the first cylinder 7 drives the sliding frame 4 to slide up and down along the roller 43 .

[0040] like Figure 4-5 As shown, the first positioning and sealing group 5 includes a second cylinder 51 fixedly mounted on the surface of the lower frame.

[0041] A first positioning shaft 52 is fixedly mounted on the power output end of the second cylinder 51 .

[0042] A second air hole 531 is formed on the end surface of the first positioning shaft 52 , and a first air hole 530 is formed on the surface of the first positioning shaft 52 .

[0043] The first air hole 530 and the second air hole 531 are both configured as blind holes, and the first air hole 530 is communicated with the second air hole 531 .

[0044] The first air hole 530 is connected to an air pipe joint 54 .

[0045] The other end of the air pipe joint 54 is connected to the external main air source through the air pipe.

[0046] A positioning plate 55 is fixedly mounted on the outer surface of the end of the first positioning shaft 52 .

[0047] A first sealing gasket 56 is connected to the top of the surface of the positioning plate 55 , and the first sealing gasket 56 is sleeved on the first positioning shaft 52 at the same time.

[0048] The first support frame 57 includes two first connecting bars 570 vertically arranged on the end surface of the second cylinder 51 close to the power output end, and the two first connecting bars 570 are arranged at intervals and in parallel.

[0049] The same first vertical plate 571 is vertically arranged at the ends of the two first connecting bars 570 .

[0050] The first vertical plate 571 is also vertically arranged at a corresponding position on the lower frame surface.

[0051] A first U-shaped groove 572 is formed on the first vertical plate 571 at a position corresponding to the first positioning shaft 52 .

[0052] like Figure 1 As shown, when the oil inlet pipe is installed, one end of the oil inlet pipe is connected to the first sealing gasket 56, and the outer surface of the oil inlet pipe is connected to the first U-shaped groove 572, that is, the first U-shaped groove 572 supports the oil inlet pipe.

[0053] The second positioning sealing group 6 includes a third cylinder 61 fixedly installed at a corresponding position on the lower frame surface. The third cylinder 61 and the second cylinder 51 are arranged vertically and the power output ends of the third cylinder 61 and the second cylinder 51 are close to each other.

[0054] A contact plate 62 is fixedly mounted on the power output end of the third cylinder 61 , and a second sealing gasket 63 is abutted on the surface of the contact plate 62 .

[0055] The second sealing gasket 63 is also sleeved on the power output end of the third cylinder 61, which is not indicated in the figure.

[0056] Two positioning pins 64 are inserted into the contact plate 62 near the edge thereof, and the two positioning pins 64 are symmetrically arranged.

[0057] Two positioning pins 64 penetrate the second sealing gasket 63 .

[0058] The second support frame 65 includes two second connecting bars 650 vertically arranged on the end surface of the third cylinder 61 close to the power output end, and the two second connecting bars 650 are arranged at intervals and in parallel.

[0059] The same second vertical plate 651 is vertically arranged at the ends of the two second connecting bars 650 .

[0060] The second vertical plate 651 is also vertically arranged at a corresponding position on the lower frame surface.

[0061] A second U-shaped groove 652 is formed on the second vertical plate 651 at a position corresponding to the power output end of the third cylinder 61 .

[0062] In this embodiment 1, a control cabinet for controlling the tooling is also fixedly installed on one side of the bracket 1, which is not shown in the figure. A control system is arranged in the control cabinet, and the control system can control the operation of the first cylinder 7, the second cylinder 51 and the third cylinder 61. The specific control principle is well known in the prior art and will not be repeated here.

[0063] The control ends of the first cylinder 7, the second cylinder 51 and the third cylinder 61 are all connected to corresponding solenoid valves, and the control ends of all solenoid valves are electrically connected to the control system through wires. With this design, the control system can control and drive the operation of the first cylinder 7, the second cylinder 51 and the third cylinder 61.

[0064] like Figure 1 As shown, one end of the oil inlet pipe flange is connected to the second sealing gasket 63. At the same time, the mounting hole on the oil inlet pipe flange is inserted into the corresponding positioning pin 64, and the outer surface of the oil inlet pipe is connected to the second U-shaped groove 652, that is, the second U-shaped groove 652 supports the oil inlet pipe.

[0065] With this design, the oil inlet pipe is positioned on the tooling, and then the second cylinder 51 and the third cylinder 61 are started. The power output ends of the second cylinder 51 and the third cylinder 61 are extended and respectively pressed against the two ends of the oil inlet pipe to ensure that the two ends of the oil inlet pipe are tightly connected to the corresponding first sealing gasket 56 and the second sealing gasket 63, thereby completing the rapid positioning and sealing installation of the oil inlet pipe, which is easy to install.

[0066] During the test, the main gas source is turned on, and the gas output by the main gas source passes through the air pipe, and enters the oil inlet pipe through the air pipe joint 54, the first air hole 530, and the second air hole 531. Then the first cylinder 7 is started, and the power output end of the first cylinder 7 extends to drive the sliding frame 4 to move downward along the roller 43, and then the oil inlet pipe with the positioning seal completed on the sliding frame 4 moves downward and enters the test pool 2.

[0067] At this time, the inside of the test pool 2 is filled with liquid. When the oil inlet pipe filled with gas enters the liquid inside the test pool 2 under the drive of the power output end of the first cylinder 7, if the oil inlet pipe is not sealed well, bubbles will appear in the liquid. If the oil inlet pipe is sealed well, there will be no change in the liquid, and the test is completed.

[0068] Embodiment 2, an oil inlet pipe air tightness detection and positioning tool, based on Embodiment 1, a manual valve and a pressure gauge are connected between the total air source and the air pipe joint 54, which is not indicated in the figure. The function of the manual valve is to open the manual valve to realize the inflation into the oil inlet pipe. When the pressure gauge displays the preset test pressure, the manual valve is then closed. At this time, the change in the value on the pressure gauge is observed. If the oil inlet pipe is well sealed, the pressure gauge will not change. If the oil inlet pipe is not well sealed, the value of the pressure gauge will decrease, and the observation will be more intuitive.

[0069] In this embodiment 2, the working principles of the manual valve and the pressure gauge are well known in the prior art and will not be described in detail here.

[0070] For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and deformations made to the implementation methods are still within the protection scope of the present invention.

Claims

1. An oil inlet pipe air tightness detection and positioning tool, comprising a bracket (1), characterized in that: A test pool (2) is fixedly mounted on the lower end of the bracket (1), a sliding frame (4) is slidably connected to the inner side of the bracket (1), a first cylinder (7) for driving the sliding frame (4) to slide is fixedly mounted on the upper end of the bracket (1), a first positioning seal group (5) and a second positioning seal group (6) are arranged on the sliding frame (4), and the first positioning seal group (5) and the second positioning seal group (6) are perpendicular to each other; The first positioning seal group (5) comprises a second cylinder (51), a first positioning shaft (52) being fixedly mounted on the power output end of the second cylinder (51), a positioning plate (55) being fixedly mounted on the outer surface of the end of the first positioning shaft (52), a first sealing gasket (56) being connected to the top of the surface of the positioning plate (55), and the first sealing gasket (56) being sleeved on the first positioning shaft (52).

2. The oil inlet pipe airtightness detection and positioning tool according to claim 1, characterized in that: The end surface of the first positioning shaft (52) is provided with a second air hole (531), the surface of the first positioning shaft (52) is provided with a first air hole (530), and the first air hole (530) is communicated with the second air hole (531).

3. The oil inlet pipe airtightness detection and positioning tool according to claim 2, characterized in that: The first air hole (530) on the first positioning shaft (52) is connected to an air pipe joint (54).

4. The oil inlet pipe airtightness detection and positioning tool according to claim 3 is characterized by: Two first connecting bars (570) are vertically arranged on the end surface of the second cylinder (51) close to the power output end, and the same first vertical plate (571) is vertically arranged at the ends of the two first connecting bars (570).

5. The oil inlet pipe airtightness detection and positioning tool according to claim 4, characterized in that: The second positioning seal assembly (6) comprises a third cylinder (61), and a contact plate (62) is fixedly mounted on the power output end of the third cylinder (61).

6. The oil inlet pipe airtightness detection and positioning tool according to claim 5, characterized in that: A second sealing gasket (63) is connected to the top of the surface of the contact plate (62), and the second sealing gasket (63) is also sleeved on the power output end of the third cylinder (61).

7. The oil inlet pipe airtightness detection and positioning tool according to claim 6, characterized in that: Two positioning pins (64) are inserted into the contact plate (62) at positions close to the edge, the two positioning pins (64) are symmetrically arranged, and the two positioning pins (64) penetrate the second sealing pad (63).

8. The oil inlet pipe airtightness detection and positioning tool according to claim 7, characterized in that: Two second connecting bars (650) are vertically arranged on the end surface of the third cylinder (61) close to the power output end, and the same second vertical plate (651) is vertically arranged at the ends of the two second connecting bars (650).

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