GI gas valve guide sleeve pressure test tool

Abstract

The invention provides a GI gas valve guide sleeve pressure testing tool which is suitable for the technical field of the diesel engine manufacturing industry, and aims to provide the GI gas valve guide sleeve pressure testing tool which adopts the scheme that the GI gas valve guide sleeve pressure testing tool comprises a pressure testing flange, a pressure testing shaft body, a limiting mechanism, a fixing hole, a bolt and a nut, a pressure testing shaft body is connected in the pressure testing flange in a penetrating mode, limiting mechanisms are fixedly installed on the surface of the pressure testing flange and the upper surface of the pressure testing shaft body, and by installing the pressure testing flange, the pressure testing shaft body, the limiting mechanisms, fixing holes, bolts and nuts, the GI gas valve guide sleeve pressure testing tool is designed into a split type. The tool can be independently purchased according to the loss condition in the using process, the maintenance cost is reduced, meanwhile, the tool is simple in structure and convenient to install and operate, and the production efficiency can be improved; the invention is also suitable for the field of diesel engine manufacturing industry.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engine manufacturing industry, and in particular to a GI gas valve guide sleeve pressure testing tool. Background Art

[0002] The cylinder head of a dual-fuel diesel engine is equipped with a gas valve, which sprays natural gas, which is flammable and explosive. Therefore, there are strict requirements for the sealing of the gas valve guide sleeve installed on the cylinder head. At present, the GI gas valve guide sleeve pressure test only performs a pressurized test on the gas valve guide sleeve area, which can only determine whether the test area is leaking, but cannot quickly confirm the leakage area. The leakage location needs to be determined by using the foam method to detect the upper and lower planes respectively. Due to the high test pressure, there are safety hazards.

[0003] With the increase of dual-fuel diesel engine market, the current pressure testing method is inefficient and cannot meet production requirements. Therefore, it is necessary to design a new GI gas valve guide sleeve pressure testing tool, which is mainly suitable for more safely and quickly determining the leakage location during the gas valve guide sleeve pressure testing process to improve work efficiency.

[0004] Therefore, it is necessary to provide a new GI gas valve guide sleeve pressure test tool to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a GI gas valve guide sleeve pressure testing tool.

[0006] The GI gas valve guide sleeve pressure test tool provided by the present invention comprises: a pressure test flange, a pressure test shaft body, a limiting mechanism, a fixing hole, bolts and nuts. The pressure test flange is internally connected with the pressure test shaft body, and the surface of the pressure test flange is fixedly installed with the limiting mechanism on the upper surface of the pressure test shaft body. The surface of the pressure test flange is symmetrically provided with fixing holes, and bolts are internally connected with the fixing holes. The surface of the bolts is meshed with nuts, and the pressure test shaft body is installed in the guide sleeve hole of the cylinder head gas valve. The interior of the pressure test flange is connected with the bottom of the pressure test shaft body, and the pressure test flange and the pressure test shaft body are firmly connected through the limiting mechanism. The bolts pass through the fixing holes, and the nuts are rotatably connected to the surface of the bolts, and the pressure test flange and the pressure test shaft body are installed in the guide sleeve hole of the cylinder head gas valve.

[0007] Preferably, the limiting mechanism includes a first limiting seat, a second limiting seat, a limiting groove, a guide groove, a connecting rod and a connecting block. The first limiting seat is symmetrically fixedly connected to the surface of the pressure test shaft body, and the second limiting seat is symmetrically fixedly connected to the upper surface of the pressure test flange. The first limiting seat is symmetrically provided with limiting grooves, and the second limiting seat is provided with a guide groove. The guide groove is slidably connected with a connecting rod, and the limiting groove is slidably connected with a connecting block. The pressure test shaft body is connected with the pressure test flange, and the first limiting seat is close to the second limiting seat. The connecting rod slides in the guide groove, and the connecting rod enters the limiting groove to firmly connect the first limiting seat and the second limiting seat, and the pressure test flange and the pressure test shaft body are firmly connected. The pressure test flange and the pressure test shaft body are installed in the guide sleeve hole of the cylinder head gas valve with the help of bolts, nuts and the first test pipe.

[0008] Preferably, the limiting mechanism also includes a screw rod and a through-connection groove, the inner wall of the limiting groove is rotatably connected to a screw rod, and the surface of the screw rod is meshed and connected with the inside of the through-connection block, the surface of the connecting rod is provided with a through-connection groove, and the through-connection block is connected with the through-connection groove, the screw rod is rotated, the surface of the screw rod contacts the inside of the through-connection block, the through-connection block moves downward along the inside of the limiting groove, the through-connection block enters the through-connection groove, firmly connects the connecting rod with the first limiting seat, quickly connects the pressure test flange and the pressure test shaft body, rotates the screw rod in the opposite direction, and the through-connection block moves out of the through-connection groove, which facilitates the separation of the first limiting seat and the second limiting seat, and quickly disassembles the pressure test flange and the pressure test shaft body.

[0009] Preferably, a first test pipe and a second test pipe are opened inside the pressure test shaft body, and the first test pipe and the second test pipe are designed on both sides of the pressure test flange test area, which can effectively improve the efficiency of the pressure test. The leakage location can be safely and quickly determined through the internal pressure drop of the first test pipe and the second test pipe.

[0010] Preferably, the surface of the pressure test shaft body is provided with a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring, and the second sealing ring is located above the first sealing ring, the third sealing ring is located above the second sealing ring, and the fourth sealing ring is located above the third sealing ring, and the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are installed on the surface of the pressure test flange to ensure the sealing of the pressure test flange itself.

[0011] Preferably, a circular limit block is fixedly connected to the surface of the bolt, and the diameter of the circular limit block is larger than the diameter of the fixing hole. When the bolt passes through the fixing hole, the circular limit block of the bolt will limit the bolt to ensure that the bolt will not pass through the fixing hole, thereby increasing the practicality of the bolt.

[0012] Preferably, the nut is designed in an equilateral hexagon. The nut is manually grasped to drive the inner wall of the nut to contact the surface of the bolt, the nut is pressed against the surface of the pressure test flange, the pressure test flange is installed in the guide sleeve hole of the cylinder head gas valve, and the nut is rotated in the opposite direction to facilitate the separation of the pressure test flange from the guide sleeve hole of the cylinder head gas valve.

[0013] Preferably, the pressure test flange is made of a steel alloy material having high physical strength and high corrosion resistance. When the pressure test flange is squeezed and collided, the surface will not be easily damaged, thereby extending the service life of the pressure test flange.

[0014] Compared with the related art, the GI gas valve guide sleeve pressure test tool provided by the present invention has the following features:

[0015] Beneficial effects:

[0016] The present invention provides a GI gas valve guide sleeve pressure test tool:

[0017] 1. By installing the pressure test flange, pressure test shaft body, limit mechanism, fixing holes, bolts and nuts, the GI gas valve guide sleeve pressure test tooling is designed to be split. It can be purchased separately according to the wear and tear during use, which reduces maintenance costs. At the same time, the tooling has a simple structure, easy installation and operation, and can improve production efficiency.

[0018] 2. The pressure test flange is made of steel alloy material, which has high physical strength and high corrosion resistance. When the pressure test flange is squeezed and collided, the surface will not be easily damaged, which extends the service life of the pressure test flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0020] Figure 2 A schematic diagram of the split structure provided by the present invention;

[0021] Figure 3 A schematic cross-sectional view of a pressure test shaft body provided by the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the limiting mechanism provided by the present invention.

[0023] Numbers in the figure: 1. Pressure test flange; 2. Pressure test shaft body; 3. Limiting mechanism; 31. First limiting seat; 32. Second limiting seat; 33. Limiting groove; 34. Guide groove; 35. Connecting rod; 36. Through-connecting block; 37. Screw rod; 38. Through-connecting groove; 4. Fixing hole; 5. Bolt; 6. Nut; 7. First test pipe; 8. Second test pipe; 9. First sealing ring; 10. Second sealing ring; 11. Third sealing ring; 12. Fourth sealing ring. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The GI gas valve guide sleeve pressure test tooling includes: a pressure test flange 1, a pressure test shaft body 2, a limiting mechanism 3, a fixing hole 4, a bolt 5 and a nut 6. The pressure test flange 1 is internally connected with the pressure test shaft body 2, and the surface of the pressure test flange 1 is fixedly installed with the limiting mechanism 3 on the upper surface of the pressure test shaft body 2. The surface of the pressure test flange 1 is symmetrically provided with fixing holes 4, and the fixing holes 4 are internally connected with bolts 5, and the surface of the bolts 5 is meshed with nuts 6. The pressure test shaft body 2 is installed in the guide sleeve hole of the cylinder head gas valve, and the interior of the pressure test flange 1 is connected with the bottom of the pressure test shaft body 2. The pressure test flange 1 and the pressure test shaft body 2 are firmly connected through the limiting mechanism 3. The bolts 5 pass through the fixing holes 4, and the nuts 6 are rotatably connected to the surfaces of the bolts 5, and the pressure test flange 1 and the pressure test shaft body 2 are installed in the guide sleeve hole of the cylinder head gas valve.

[0026] Embodiment 1:

[0027] In the specific implementation process, Figure 1 and Figure 4As shown, the limiting mechanism 3 includes a first limiting seat 31, a second limiting seat 32, a limiting groove 33, a guide groove 34, a connecting rod 35 and a connecting block 36. The surface of the pressure test shaft body 2 is symmetrically fixedly connected with the first limiting seat 31, and the upper surface of the pressure test flange 1 is symmetrically fixedly connected with the second limiting seat 32. The first limiting seat 31 has a limiting groove 33 symmetrically arranged inside, and the second limiting seat 32 has a guide groove 34 arranged inside. The guide groove 34 is slidably connected with a connecting rod 35. 33 is internally slidably connected with a connecting block 36, the pressure test shaft body 2 is connected with the pressure test flange 1, the first limit seat 31 is close to the second limit seat 32, the connecting rod 35 slides inside the guide groove 34, and the connecting rod 35 enters the limit groove 33, firmly connecting the first limit seat 31 and the second limit seat 32, and firmly connecting the pressure test flange 1 and the pressure test shaft body 2, and with the bolts 5, nuts 6 and the first test pipe 7, the pressure test flange 1 and the pressure test shaft body 2 are installed in the guide sleeve hole of the cylinder head gas valve.

[0028] refer to Figure 4 As shown, the limiting mechanism 3 also includes a screw rod 37 and a connecting groove 38. The inner wall of the limiting groove 33 is rotatably connected with the screw rod 37, and the surface of the screw rod 37 is meshed with the inside of the connecting block 36. The surface of the connecting rod 35 is provided with a connecting groove 38, and the connecting block 36 is connected with the connecting groove 38. The screw rod 37 is rotated, and the surface of the screw rod 37 contacts the inside of the connecting block 36. The connecting block 36 moves downward along the inside of the limiting groove 33, and the connecting block 36 enters the inside of the connecting groove 38, firmly connecting the connecting rod 35 with the first limiting seat 31, and quickly connecting the pressure test flange 1 and the pressure test shaft body 2. The screw rod 37 is rotated in the opposite direction, and the connecting block 36 moves out of the inside of the connecting groove 38, which facilitates the separation of the first limiting seat 31 and the second limiting seat 32, and quickly disassembles the pressure test flange 1 and the pressure test shaft body 2.

[0029] refer to Figure 3 As shown, the pressure test shaft body 2 is provided with a first test pipe 7 and a second test pipe 8, and the first test pipe 7 and the second test pipe 8 are designed on both sides of the test area of ​​the pressure test flange 1, which can effectively improve the efficiency of the pressure test. The leakage location can be safely and quickly determined through the internal pressure drop of the first test pipe 7 and the second test pipe 8.

[0030] refer to Figure 3As shown, the surface of the pressure test shaft body 2 is sleeved with a first sealing ring 9, a second sealing ring 10, a third sealing ring 11 and a fourth sealing ring 12, and the second sealing ring 10 is located above the first sealing ring 9, the third sealing ring 11 is located above the second sealing ring 10, and the fourth sealing ring 12 is located above the third sealing ring 11, and the first sealing ring 9, the second sealing ring 10, the third sealing ring 11 and the fourth sealing ring 12 are installed on the surface of the pressure test flange 1 to ensure the sealing of the pressure test flange 1 itself.

[0031] refer to Figure 2 As shown, a circular limit block is fixedly connected to the surface of the bolt 5, and the diameter of the circular limit block is larger than the diameter of the fixing hole 4. When the bolt 5 passes through the fixing hole 4, the circular limit block of the bolt 5 will limit the bolt 5 to ensure that the bolt 5 will not pass through the fixing hole 4, thereby increasing the practicality of the bolt 5.

[0032] refer to Figure 2 As shown, the nut 6 is designed in an equilateral hexagon. The nut 6 is manually grasped to drive the inner wall of the nut 6 to contact the surface of the bolt 5, and the nut 6 is pressed against the surface of the pressure test flange 1. The pressure test flange 1 is installed in the guide sleeve hole of the cylinder head gas valve. The nut 6 is rotated in the opposite direction to facilitate the separation of the pressure test flange 1 from the guide sleeve hole of the cylinder head gas valve.

[0033] Embodiment 2:

[0034] refer to Figure 1 As shown, the pressure test flange 1 is made of steel alloy material, which has high physical strength and high corrosion resistance. When the pressure test flange 1 is squeezed and collided, the surface will not be easily damaged, thereby extending the service life of the pressure test flange 1.

[0035] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A GI gas valve guide sleeve pressure test tool, characterized in that: include: A pressure test flange (1), a pressure test shaft body (2), a limiting mechanism (3), a fixing hole (4), a bolt (5) and a nut (6); the pressure test flange (1) is internally connected with the pressure test shaft body (2); the surface of the pressure test flange (1) and the upper surface of the pressure test shaft body (2) are fixedly installed with the limiting mechanism (3); the surface of the pressure test flange (1) is symmetrically provided with fixing holes (4); the fixing holes (4) are internally connected with bolts (5); and the surface of the bolts (5) is meshed with nuts (6).

2. The GI gas valve guide sleeve pressure test tool according to claim 1, characterized in that: The limiting mechanism (3) comprises a first limiting seat (31), a second limiting seat (32), a limiting groove (33), a guide groove (34), a connecting rod (35) and a through-connection block (36); the surface of the pressure test shaft body (2) is symmetrically fixedly connected with the first limiting seat (31); the upper surface of the pressure test flange (1) is symmetrically fixedly connected with the second limiting seat (32); the first limiting seat (31) has symmetrical limiting grooves (33) arranged inside; the second limiting seat (32) has a guide groove (34) arranged inside; the guide groove (34) is slidably connected with a connecting rod (35); the limiting groove (33) is slidably connected with a through-connection block (36).

3. The GI gas valve guide sleeve pressure test tool according to claim 2 is characterized in that: The limiting mechanism (3) further comprises a screw rod (37) and a through-connection groove (38); the inner wall of the limiting groove (33) is rotatably connected with the screw rod (37), and the surface of the screw rod (37) is meshingly connected with the inside of the through-connection block (36); the surface of the connecting rod (35) is provided with a through-connection groove (38), and the through-connection block (36) is through-connected with the through-connection groove (38).

4. The GI gas valve guide sleeve pressure test tool according to claim 1, characterized in that: A first test pipe (7) and a second test pipe (8) are provided inside the pressure test shaft body (2).

5. The GI gas valve guide sleeve pressure test tool according to claim 1, characterized in that: The surface of the pressure test shaft body (2) is sleeved with a first sealing ring (9), a second sealing ring (10), a third sealing ring (11) and a fourth sealing ring (12), wherein the second sealing ring (10) is located above the first sealing ring (9), the third sealing ring (11) is located above the second sealing ring (10), and the fourth sealing ring (12) is located above the third sealing ring (11).

6. The GI gas valve guide sleeve pressure test tool according to claim 1, characterized in that: A circular stop block is fixedly connected to the surface of the bolt (5), and the diameter of the circular stop block is greater than the diameter of the fixing hole (4).

7. The GI gas valve guide sleeve pressure test tool according to claim 1, characterized in that: The nut (6) is designed in an equilateral hexagonal shape.

8. The GI gas valve guide sleeve pressure test tool according to claim 1, characterized in that: The pressure test flange (1) is made of steel alloy material.

Images