Pump pressure test device for cylinder sleeve

Abstract

The invention discloses a pump pressure test device for a cylinder sleeve, belongs to the technical field of pump pressure tests, is used for a water pressure sealing test of a cylinder sleeve unit, and further comprises a first loop, a second loop, a third loop and a fourth loop, a second stop valve, a pressure reducing valve, a first pressure regulating pipeline and a second pressure regulating pipeline are arranged on the second loop; the common rail pipe is communicated with a plurality of branches; according to the scheme, the hydraulic sealing test can be performed on a plurality of cylinder sleeve units simultaneously, the labor intensity is effectively reduced, and the test efficiency is remarkably improved; by setting a relatively high and stable constant pressure of the main loop on the second loop and then setting the water pressure of each branch on the common rail pipe, units with different water pressures can be tested, the water pressure of each branch on the common rail pipe and the water pressure fluctuation in each cylinder sleeve unit can be reduced, and the test efficiency is improved. And the test effect of each cylinder sleeve unit can be greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pump pressure testing, and more specifically, relates to a pump pressure testing device for a cylinder sleeve. Background Art

[0002] The cylinder liner, also known as the cylinder sleeve, is an important component in the internal combustion engine. It is installed in the cylinder body of the engine. Its main function is to provide a precise guide surface for the piston to ensure the accuracy and sealing of the piston movement, thereby improving the working efficiency of the engine. During the engine assembly process, when the cylinder liner unit is pre-installed, in order to detect the correctness of the machining and assembly of the various parts of the cylinder liner unit, the unit must be subjected to a water pressure sealing performance test.

[0003] Currently, when conducting a water pressure sealing test on a cylinder liner unit, water at a certain water pressure is pumped into the cylinder liner unit. When the water pressure in the cylinder liner unit reaches the test pressure, the pipeline is closed and observed for a certain period of time. If the water pressure inside the unit remains constant, it means there is no leakage and the test is passed; otherwise, it fails.

[0004] However, currently, water pressure sealing tests are carried out on multiple cylinder liner units in batches. The whole process takes a long time, the test efficiency is low, which affects the working cycle, and it is time-consuming, labor-intensive and labor-intensive. If simultaneous tests are required, multiple test equipment are required, which not only occupies a large space, but also has high costs such as procurement and maintenance, and will also cause waste of resources. At the same time, the water pressure of the current water pressure sealing test equipment when testing the cylinder liner is not stable enough, which is prone to fluctuations and affects the test effect and accuracy of the cylinder liner unit.

[0005] Therefore, it is necessary to provide a cylinder liner pump pressure test device to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a pump pressure test device for a cylinder liner to solve the above technical problems.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] A cylinder liner pump pressure test device is used for a water pressure sealing test of a cylinder liner unit, wherein the cylinder liner unit is connected to a water inlet pipe, and further comprises:

[0009] A first circuit, wherein a water tank and a water inlet filter are provided on the first circuit, a third circuit and a switching circuit are connected to the first circuit, a first power member and a relief valve are provided on the switching circuit, and a second power member and a fourth stop valve are provided on the third circuit;

[0010] A second circuit is connected to the third circuit and the switching circuit respectively, and the second circuit is provided with a second stop valve, a pressure reducing valve, a first pressure regulating pipeline and a second pressure regulating pipeline;

[0011] A common rail pipe is in communication with the second circuit. The common rail pipe is connected to a plurality of branches, and each of the branches is provided with a third stop valve.

[0012] As a further solution of the present invention: the pressure reducing valve is arranged between the first pressure regulating pipeline and the second pressure regulating pipeline, and the first pressure regulating pipeline and the second pressure regulating pipeline are both provided with a first stop valve and a pressure gauge.

[0013] As a further solution of the present invention: also include:

[0014] A female connector is installed at the end of each branch of the common rail pipe, and a push sleeve is slidably provided on the female connector;

[0015] A male connector, installed at the end of the water inlet pipe and adapted to the female connector;

[0016] The mounting mechanism is arranged on the common rail pipe and is used to drive the plurality of male connectors to be synchronously connected with the female connector.

[0017] As a further solution of the present invention: a disc is provided on the male connector, and the mounting mechanism comprises:

[0018] A support plate, arranged on the common rail pipe, wherein the support plate is slidably provided with a first sliding sleeve and a second sliding sleeve;

[0019] A clamping component, provided on the first sliding sleeve, for clamping the male connector;

[0020] The pushing component is arranged on the second sliding sleeve and is used for driving the pushing sleeve to move.

[0021] As a further solution of the present invention: the clamping component comprises:

[0022] A long plate, the upper end of which is connected to the first sliding sleeve, and the lower end of which is provided with a plurality of stop groups, each of which includes two stop plates, and the stop plates are provided with through holes adapted to the male joint;

[0023] A stopper is elastically arranged in the through hole, and the lower end of the stopper is an inclined surface.

[0024] As a further solution of the present invention: an inner groove is provided in the baffle, the stopper is slidably connected to the inner groove, and a first elastic member is provided between the inner wall of the inner groove and the stopper.

[0025] As a further solution of the present invention: the pushing component includes:

[0026] A transfer rod, disposed at the bottom of the second sliding sleeve, and a plurality of push rods are disposed on the transfer rod;

[0027] A support plate is arranged on the support plate, and a second elastic member is arranged between the support plate and the second sliding sleeve.

[0028] As a further solution of the present invention: a push block is provided on the long plate, a transmission cavity is opened in the second sliding sleeve, a shift rod and a trigger rod are slidably provided in the transmission cavity, and a first wedge block and a second wedge block that are slidably adapted are respectively provided on the shift rod and the trigger rod.

[0029] As a further solution of the present invention: a shift groove is provided in the transmission cavity, a slider connected to the shift rod is slidably provided in the shift groove, and a third elastic member is provided between the slider and the inner wall of the shift groove.

[0030] As a further solution of the present invention: a plurality of lifting racks are also provided on the long board, each lifting rack has a through hole, one side of the through hole is provided with an arc plate, a screw is threadedly connected to the lifting rack, one end of the screw extends into the through hole and is rotatably connected to a clamping plate.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. This solution can simultaneously connect multiple cylinder liner units to the branches of the common rail pipe of this application, so that multiple cylinder liner units can be subjected to water pressure sealing tests, avoiding the current situation where the cylinder liner units need to be subjected to water pressure tests in multiple batches, greatly shortening the test time, speeding up the work process, effectively reducing labor intensity and significantly improving the test efficiency. It also avoids the need to use multiple test equipment for testing, which not only reduces the space occupied by multiple equipment, but also reduces the costs of procurement and maintenance.

[0033] 2. This solution sets a relatively high and stable constant pressure of the main circuit on the second circuit by adjusting the set pressure of the overflow valve, and then sets the pressure of the pressure reducing valve to set the water pressure of each branch on the common rail pipe. The pressure of the pressure reducing valve can be adjusted accordingly according to the different pressures required by different types of test units. The pressure adjustment operation is more convenient and fast, with strong flexibility, and thus units with different water pressures can be tested. It has a wide range of applications, can meet a variety of needs, and can be widely promoted and used. In addition, the pressure of the main circuit on the second circuit remains constant, thereby reducing the water pressure fluctuations of each branch on the common rail pipe and the water pressure in each cylinder liner unit, thereby greatly improving the test effect and accuracy of each cylinder liner unit.

[0034] 3. This solution can connect and install the male connector and the female connector together through a mobile installation mechanism, avoiding the current method of manually operating the mobile push sleeve with one hand and driving the male connector to insert into the female connector with the other hand. The same is true for disassembly, which can greatly reduce the labor intensity of the staff and save a lot of time. The operation is simple and convenient; and it can simultaneously drive the connection and disassembly of the water inlet pipes of multiple cylinder liner units and the corresponding branches on the common rail pipe, which can further facilitate the connection and installation of the water inlet pipes of the cylinder liner units, save a lot of steps and time, and significantly improve the efficiency of connecting the water inlet pipes of each cylinder liner unit.

[0035] 4. In this scheme, when the first sliding sleeve is moved to drive the male connector to be inserted into the female connector, the long plate on the first sliding sleeve will push the shift rod and the second sliding sleeve backward through the push block, that is, at this time, the push rod will be driven to move the push sleeve backward. When the male connector is inserted into the corresponding position, the second sliding sleeve, the push rod and the push sleeve will move forward and return to the initial position, thereby realizing the installation of the female connector and the male connector. The operation is simple and convenient, reducing the operation steps and complexity, saving time and effort, and greatly improving the connection and installation efficiency of each branch on the water inlet pipe and the common rail pipe.

[0036] 5. In this solution, the water inlet pipe facing forward at the male joint connection is clamped by an arc plate and a clamping plate, so that the water inlet pipe can be protected during use, and leakage or separation caused by bending and pulling of the water inlet pipe at the male joint connection can be avoided, thereby improving the sealing effect of the male joint connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of a water pressure seal test circuit of a cylinder liner unit of the present invention;

[0038] Figure 2 It is a structural schematic diagram of the connection state between each branch on the common rail pipe and the water inlet pipe of the present invention;

[0039] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0040] Figure 4 for Figure 2 Schematic diagram of other perspective structures;

[0041] Figure 5 for Figure 2 Schematic diagram of the local structure from the bottom perspective;

[0042] Figure 6 for Figure 2 A side view structural schematic diagram of;

[0043] Figure 7 It is a schematic diagram of the structure of the state before each branch on the common rail pipe of the present invention is connected to the water inlet pipe;

[0044] Figure 8 for Figure 7 The enlarged structural diagram at B in the middle;

[0045] Fig. 9 It is a partial cross-sectional structural schematic diagram of the baffle in the present invention;

[0046] Fig.10 is a schematic cross-sectional structural diagram of the second sliding sleeve in the present invention;

[0047] Fig.11 for Fig.10 The enlarged structural diagram at C in the middle;

[0048] Fig.12 It is a schematic diagram of the structure before the male connector and the female connector are connected in the present invention.

[0049] Description of the numbers in the figure:

[0050] 1. Water inlet pipe; 2. First circuit; 3. Water tank; 4. Water inlet filter; 5. Third circuit; 6. Switching circuit; 7. First power part; 8. Overflow valve; 9. Second power part; 10. Fourth stop valve; 11. Second circuit; 12. Second stop valve; 13. Pressure reducing valve; 14. First pressure regulating pipeline; 15. Second pressure regulating pipeline; 16. First stop valve; 17. Pressure gauge; 18. Common rail pipe; 19. Third stop valve; 20. Female connector; 21. Push sleeve; 22. Male connector; 23. Installation mechanism; 231. Support plate; 232. First sleeve; 233. Second sleeve; 234. 4. Clamping component; 2341. Long plate; 2342. Baffle; 2343. Perforation; 2344. Block; 235. Pushing component; 2351. Transfer rod; 2352. Pushing rod; 2353. Support plate; 2354. Second elastic member; 24. Disc; 25. Inner groove; 26. First elastic member; 27. Pushing block; 28. Transmission chamber; 29. ​​Shifting rod; 30. Triggering rod; 31. First wedge block; 32. Second wedge block; 33. Shifting groove; 34. Sliding block; 35. Third elastic member; 36. Lifting frame; 37. Arc plate; 38. Screw; 39. Clamping plate; 40. Fifth stop valve. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Embodiment 1:

[0053] See also Figure 1-12A cylinder liner pump pressure test device is used for a water pressure sealing test of a cylinder liner unit. The cylinder liner unit is connected with a water inlet pipe 1, and further comprises:

[0054] The first circuit 2 is provided with a water tank 3 and a water inlet filter 4, the first circuit 2 is connected with a third circuit 5 and a switching road 6, the switching road 6 is provided with a first power piece 7 and an overflow valve 8, and the third circuit 5 is provided with a second power piece 9 and a fourth stop valve 10; in this application, the first power piece 7 is used as the power element of the test device, and a water inlet pump and a motor group are used. According to the requirements of the test, a suitable pump and motor are selected to output the required pressure and flow. In this application, a multi-stage pump group is selected. The second power piece 9 is the second power element of the device, and a return pump and a motor group are used. A pump with a certain self-priming ability can be selected. In this application, a gear pump or a centrifugal pump is selected; the function is to pump the water in the test unit back to the water tank after the test is completed. The water tank 3 is used to store water for the water pressure sealing test and the reflux collection and storage of water after the test is completed; the function of the water inlet filter 4 is to remove impurities from the water entering the first power piece 7; the overflow valve 8 is mainly to protect the first power piece 7, play the role of a safety valve, and stabilize the main circuit pressure. The pressure setting value should be slightly lower than the maximum output pressure value of the first power piece 7.

[0055] The second circuit 11 is connected to the third circuit 5 and the switching circuit 6 respectively. The second circuit 11 is provided with a second stop valve 12, a pressure reducing valve 13, a first pressure regulating pipeline 14 and a second pressure regulating pipeline 15; the pressure reducing valve 13 is arranged between the first pressure regulating pipeline 14 and the second pressure regulating pipeline 15, and the first pressure regulating pipeline 14 and the second pressure regulating pipeline 15 are both provided with a first stop valve 16 and a pressure gauge 17. The first stop valve 16 and the pressure gauge 17 on the first pressure regulating pipeline 14 are used to set the overflow pressure value of the overflow valve 8; the function of the pressure reducing valve 13 is to reduce the pressure of the main circuit to any pressure value required for the water sealing test; the first stop valve 16 and the pressure gauge 17 on the second pressure regulating pipeline 15 are used to set the output pressure value of the pressure reducing valve 13; the second stop valve 12 is used to cut off the second circuit 11, and when it is closed after the water sealing test is completed, the water in the tested unit is pumped back to the water tank 3 through the second power member 9.

[0056] The common rail pipe 18 is connected to the second circuit 11, and multiple branches are connected to the common rail pipe 18, each of which is provided with a third stop valve 19. The common rail pipe 18 plays the role of pressure storage and pressure stabilization, and several branches can provide water pressure to multiple cylinder liner units to be tested at the same time; the third stop valve 19 can cut off the branches on the common rail pipe 18 during the water pressure sealing test to maintain the pressure.

[0057] The function of the fourth stop valve 10 is to close it before the water pressure sealing test. The second circuit 11 performs a water pressure sealing test. After the test, the second stop valve 12 is closed and the fourth stop valve 10 is opened to pump the water in the tested cylinder liner unit back to the water tank 3 through the second power part 9.

[0058] The first circuit 2, the second circuit 11 and the third circuit 5 in the present application all refer to pipelines through which fluid can flow.

[0059] 1. The steps for the cylinder liner unit pump pressure test are as follows: (taking the cylinder liner pump pressure test pressure requirement value of 10.5 bar as an example)

[0060] 1. First, connect the water inlet pipe 1 of each cylinder liner unit to the water outlet interface on each branch of the common rail pipe 18;

[0061] 2. Then close the first stop valve 16 on the second pressure regulating pipeline 15, close the second stop valve 12, the third stop valve 19 and the fourth stop valve 10;

[0062] 3. Start the first power member 7 and open the first stop valve on the first pressure regulating pipeline 14. The water in the water tank 3 will be pumped into the first circuit 2, the transfer circuit 6 and the second circuit 11 through the first power member 7. The set pressure of the overflow valve 8 is adjusted by the pressure value displayed by the pressure gauge 17 on the first pressure regulating pipeline 14. In this example, it is adjusted to 18 bar, that is, at this time, the main circuit water pressure pumped from the first power member 7 to the second circuit 11 is set to 18 bar;

[0063] 4. Open the second stop valve 12 and the first stop valve 16 on the second pressure regulating pipeline 15. At this time, the water in the second circuit 11 will flow into the second pressure regulating pipeline 15. The set pressure of the pressure reducing valve 13 is adjusted by the pressure value displayed by the pressure gauge 17 in the second pressure regulating pipeline 15. At this time, it is adjusted to 10.5 bar, that is, the water pressure entering each branch of the common rail pipe 18 is 10.5 bar, that is, the water pressure of each branch of the common rail pipe 18 is adjusted to the pressure value required for the cylinder liner pump pressure test;

[0064] 5. Open the third stop valve 19 on each branch of the common rail pipe 18 connected to each cylinder liner unit. At this time, the water source with a pressure of 10.5 bar enters each cylinder liner unit, and then close the third stop valve 19 and the first power member 7. At the beginning of the test, observe the pressure gauge pre-installed on each cylinder liner unit to see if the pressure gauge still maintains a pressure value of 10.5 bar after 10 minutes. If the water pressure inside the unit remains constant, it means there is no leakage and the test is qualified; otherwise, it is unqualified.

[0065] In summary, the present application can simultaneously connect multiple cylinder liner units to the branches of the common rail pipe 18 of the present application, so that the hydraulic sealing test can be performed on multiple cylinder liner units, avoiding the current situation where the cylinder liner units need to be tested in batches, greatly shortening the test time, speeding up the work process, saving time and effort, effectively reducing labor intensity and significantly improving the test efficiency. It also avoids the need to use multiple test equipment for testing, which not only reduces the space occupied by multiple equipment, but also reduces the cost of procurement and maintenance, and reduces resource waste.

[0066] At the same time, the set pressure of the overflow valve 8 is adjusted by the pressure gauge 17 on the first pressure regulating pipeline 14 on the second circuit 11, that is, a higher and stable constant pressure of the main circuit on the second circuit 11 is set at this time, and then the pressure of the pressure reducing valve 13 is set by the pressure gauge 17 on the second pressure regulating pipeline 15, so that the water pressure of each branch on the common rail pipe 18 is set by the pressure reducing valve 13, that is, it is set to the required pressure of the unit to be tested, so that the pressure of the pressure reducing valve 13 can be adjusted accordingly according to the different pressures required by the test units of different models, and the pressure regulating operation is more convenient and fast, with strong flexibility, so that units with different water pressures can be tested, with a wide range of applications, can meet various needs, and can be widely promoted and used. Moreover, the pressure of the main circuit on the second circuit 11 is kept constant, so that the stability of the water pressure of each branch on the common rail pipe 18 can be improved, thereby reducing the water pressure fluctuation of each branch on the common rail pipe 18 and the water pressure in each cylinder liner unit, and thus greatly improving the test effect and accuracy of each cylinder liner unit.

[0067] 2. Backwater steps after the pump pressure test is completed:

[0068] 1. Close the second stop valve 12, open the fourth stop valve 10, and then open the third stop valve 19 on each branch of the common rail pipe 18;

[0069] 2. Start the second power member 9, and the water in each cylinder liner unit on each branch of the common rail pipe 18 will be pumped into the third circuit 5, and finally return to the water tank 3. After the water return is completed, the second power member 9 will be closed;

[0070] 3. Close the fourth stop valve 10, open the second stop valve 12, and then close the third stop valve 19 to restore the test device to the initial state and wait for the start of the next test;

[0071] 4. Remove the water inlet pipes 1 of each cylinder liner connected to each branch on the common rail pipe 18, and the test is completed.

[0072] The first circuit 2 is also equipped with a fifth stop valve 40 , which is used to drain the water in the water tank 3 when the water in the water tank 3 is removed or replaced.

[0073] Embodiment 2:

[0074] At present, the water inlet pipe 1 of the cylinder liner unit and the water outlet pipe of the pump pressure test device are generally connected by a quick connector, which has the advantages of good sealing, convenient installation, time-saving and labor-saving, and improved disassembly and assembly efficiency. A male connector is installed on the water inlet pipe 1 of the cylinder liner unit, and a female connector is installed on the water outlet pipe of the pump pressure test device. When connecting, it is generally necessary to manually push the push sleeve on the female connector backward, then insert the male connector into the female connector, and then release the push sleeve, the push sleeve will return to its position, and the connection between the male connector and the female connector can be achieved. However, this series of processes are generally operated manually, especially when there are more cylinder liner units to be connected, which consumes a lot of labor intensity, takes a long time, and has low work efficiency.

[0075] Therefore, please refer to Figure 1-12 On the basis of the first embodiment, it further includes: a female connector 20, which is installed at the end of each branch of the common rail pipe 18, and a push sleeve 21 is slidably provided on the female connector 20; a male connector 22, which is installed at the end of the water inlet pipe 1 and is adapted to the female connector 20; and a mounting mechanism 23, which is provided on the common rail pipe 18 and is used to drive multiple male connectors 22 to be synchronously connected to the female connector 20.

[0076] When connecting the water inlet pipe 1 of each cylinder liner unit with the end of each branch of the common rail pipe 18, first connect the male connector 22 on each water inlet pipe 1 with the installation mechanism 23, and then move the male connector 22 and the water inlet pipe 1 by moving the installation mechanism 23. At this time, the male connector 22 moves toward the female connector 20 of each branch of the common rail pipe 18, and the installation mechanism 23 will first drive the push sleeve 21 on the female connector 20 to move backward. During this process, the male connector 22 will gradually be inserted into the female connector 20. When the male connector 22 is inserted into the specified position in the female connector 20, the installation mechanism 23 will release the movement of the push sleeve 21, and the push sleeve 21 will move to restore to the initial position, and the male connector 22 and the female connector will be connected. The heads 20 are connected and installed together, which completes the connection between the water inlet pipe 1 of the cylinder liner unit and the various branches of the common rail pipe 18, avoiding the current method of manually operating the moving push sleeve 21 with one hand and driving the male connector 22 to insert into the female connector 20 with the other hand. The same is true when disassembling, which can greatly reduce the labor intensity of the staff and save a lot of time. The operation is simple and convenient; and it can simultaneously drive the connection and disassembly of the water inlet pipes 1 of multiple cylinder liner units and the corresponding branches on the common rail pipe 18, which can further facilitate the connection and installation of the water inlet pipe 1 of the cylinder liner unit, save a lot of steps and time, and significantly improve the efficiency of connecting the water inlet pipes 1 of each cylinder liner unit. It has good use effect and strong practicality, and can be widely promoted and used.

[0077] In this embodiment, preferably, please refer to Figure 2-12A disc 24 is provided on the male connector 22, and the mounting mechanism 23 includes: a support plate 231, which is provided on the common rail tube 18, and the support plate 231 is slidably provided with a first sliding sleeve 232 and a second sliding sleeve 233; a clamping component 234, which is provided on the first sliding sleeve 232 and is used to clamp the male connector 22; a pushing component 235, which is provided on the second sliding sleeve 233 and is used to drive the pushing sleeve 21 to move. When the water inlet pipe 1 of each cylinder sleeve unit is connected to the end of each branch of the common rail pipe 18, the male connector 22 of the water inlet pipe 1 is first clamped by the clamping component 234, and then the first sliding sleeve 232 is moved, which will drive the clamping component 234 and the male connector 22 of the water inlet pipe 1 to move, and at this time, the pushing component 235 will drive the push sleeve 21 on the female connector 20 to move, and when the male connector 22 is moved and inserted into the specified position in the female connector 20, the pushing component 235 will release the push on the push sleeve 21, and the push sleeve 21 will return to its initial state, and the connection between the male connector 22 and the female connector 20 can be achieved; in the same way, when disassembling, the pushing component 235 and the push sleeve 21 on the female connector 20 are first driven to move backward by moving the second sliding sleeve 233, and then the first sliding sleeve 232 can be moved, so that the male connector 22 and the water inlet pipe 1 can be driven to move away, and the disassembly process can be completed, which is simple and convenient to operate, fast to connect, high in disassembly efficiency, and good in use effect.

[0078] In this embodiment, preferably, please refer to Figure 2-9 and Fig.12 The clamping component 234 includes: a long plate 2341, the upper end of which is connected to the first sliding sleeve 232, and the lower end of which is provided with a plurality of stop groups, each of which includes two stop plates 2342, and the stop plates 2342 are provided with through holes 2343 that are compatible with the male connector 22; a stop block 2344, which is elastically arranged in the through hole 2343, and the lower end of the stop block 2344 is an inclined surface. Move the male connector 22 toward the through hole 2343 of the baffle 2342 and make the disc 24 between the two baffles 2342. The male connector 22 will squeeze the block 2344 to make it move toward the baffle 2342. When the male connector 22 enters the specified position in the through hole 2343, the block 2344 will no longer be squeezed. The block 2344 will return to its initial state and block under the male connector 22, thereby limiting the vertical movement of the male connector 22. The disc 24 on the male connector 22 will be restricted by the baffles 2342 on both sides, thereby limiting the horizontal movement of the male connector 22. That is, when the first sliding sleeve 232 is moved, the long plate 2341 and the baffle 2342 can be moved, that is, the male connector 22 and the water inlet pipe 1 can be moved.

[0079] In this embodiment, preferably, please refer to Fig. 9The baffle 2342 has an inner groove 25, and the stopper 2344 is slidably connected to the inner groove 25. A first elastic member 26 is provided between the inner wall of the inner groove 25 and the stopper 2344. The first elastic member 26 in the present application is a spring. When the stopper 2344 is squeezed, it moves toward the inner groove 25 and compresses the first elastic member 26. When the stopper 2344 is no longer compressed, the rebound force of the first elastic member 26 drives the stopper 2344 to move, that is, the stopper 2344 eventually moves to the initial state, thereby realizing the restriction of the vertical movement of the male connector 22.

[0080] In this embodiment, preferably, please refer to Figure 2-6 and Figure 10-12 The pushing component 235 includes: a transfer rod 2351, which is arranged at the bottom of the second sliding sleeve 233, and a plurality of pushing rods 2352 are arranged on the transfer rod 2351; a support plate 2353, which is arranged on the support plate 231, and a second elastic member 2354 is arranged between the support plate 2353 and the second sliding sleeve 233. The second elastic member 2354 in the present application is a spring. When the second sliding sleeve 233 is pushed backward, the second sliding sleeve 233 will slide along the support plate 231, and the second elastic member 2354 will be gradually compressed, and the second sliding sleeve 233 will drive the transfer rod 2351 and the pushing rod 2352 to move, and the pushing rod 2352 will drive the pushing sleeve 21 on the female connector 20 to move. When the second sliding sleeve 233 is no longer pressed to move, the second sliding sleeve 233 will be driven to move back to the initial position through the second elastic member 2354, and the pushing rod 2352 and the pushing sleeve 21 will also return to the initial state.

[0081] In this embodiment, preferably, please refer to Figure 6 and Figure 10-11, a push block 27 is provided on the long plate 2341, a transmission cavity 28 is provided in the second sliding sleeve 233, a shift rod 29 and a trigger rod 30 are slidably provided in the transmission cavity 28, and a first wedge block 31 and a second wedge block 32 are respectively provided on the shift rod 29 and the trigger rod 30 for sliding adaptation. When the first sliding sleeve 232 is moved to drive the long plate 2341 and the baffle plate 2342 to move, the male connector 22 is inserted into the female connector 20. During this process, the long plate 2341 will drive the push block 27 to move, and the push block 27 will push the shift rod 29 and the second sliding sleeve 233 to move backwards, that is, at this time, the push rod 2352 will be driven to move the push sleeve 21 backwards. During this process, the trigger rod 30 will be squeezed by the push rod 2353 and move, and the trigger rod 30 will drive the second wedge block 32 to move, and the second wedge block 32 will drive the shift rod 29 to move upwards through the cooperation with the first wedge block 31. When the male connector 22 is inserted into the female connector 20, the long plate 2341 will drive the push block 27 to move, and the push block 27 will push the shift rod 29 and the second sliding sleeve 233 to move backwards, that is, at this time, the push rod 2352 will be driven to move the push sleeve 21 backwards. During this process, the trigger rod 30 will be squeezed by the push rod 2353 and move, and the trigger rod 30 will drive the second wedge block 32 to move, and the second wedge block 32 will drive the shift rod 29 to move upwards through the cooperation with the first wedge block 31. After the head 22 is inserted into the corresponding position, the shift rod 29 moves up and after being disengaged from the push of the push block 27, the second elastic member 2354 will drive the second sliding sleeve 233 and the push rod 2352 to move forward and return to the initial position. At this time, the push sleeve 21 will also move forward to the initial position, thereby realizing the installation of the female connector 20 and the male connector 22. The operation is simple and convenient, and the need to control the movement of the clamping component 234 and the pushing component 235 separately can be avoided, thereby reducing the operating steps and complexity, saving time and effort, and greatly improving the connection and installation efficiency of the branches on the water inlet pipe 1 and the common rail pipe 18, and having strong practicality.

[0082] In this embodiment, preferably, please refer to Figure 10-11 A shift groove 33 is provided in the transmission cavity 28, a slider 34 connected to the shift rod 29 is slidably provided in the shift groove 33, a third elastic member 35 is provided between the slider 34 and the inner wall of the shift groove 33, and the third elastic member 35 in the present application is a spring. When the shift rod 29 moves upward, the slider 34 is driven to move along the shift groove 33 and compress the third elastic member 35. When the shift rod 29 stops moving upward, the third elastic member 35 drives the shift rod 29 to move downward to the initial state.

[0083] In this embodiment, preferably, please refer to Figure 2-8The long plate 2341 is also provided with a plurality of lifting brackets 36, the lifting brackets 36 are provided with through holes, one side of the through holes is provided with an arc plate 37, the lifting brackets 36 are threadedly connected with screw rods 38, one end of the screw rods 38 extends into the through holes and is rotatably connected with clamping plates 39. After the male connector 22 on the water inlet pipe 1 is installed on the baffle plate 2342, the water inlet pipe 1 at the rear side of the male connector 22 is placed in the lifting brackets 36, so that one side of the water inlet pipe 1 is placed at the position of the arc plate 37, and then the screw rods 38 are rotated to drive the clamping plates 39 to move, and the clamping plates 39 gradually approach the other side of the water inlet pipe 1, so that the water inlet pipe 1 at this place is clamped by the arc plate 37 and the clamping plates 39, so that the water inlet pipe 1 can be protected during use, and the water inlet pipe 1 at the connection with the male connector 22 can be prevented from being bent and pulled to cause leakage or separation, and the sealing effect of the connection of the male connector 22 can be improved, which is highly practical.

[0084] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0085] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0086] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A cylinder liner pump pressure test device, used for a water pressure sealing test of a cylinder liner unit, wherein a water inlet pipe (1) is connected to the cylinder liner unit, and characterized in that: Also includes: A first circuit (2), wherein the first circuit (2) is provided with a water tank (3) and a water inlet filter (4), the first circuit (2) is connected with a third circuit (5) and a switching circuit (6), the switching circuit (6) is provided with a first power member (7) and a relief valve (8), and the third circuit (5) is provided with a second power member (9) and a fourth stop valve (10); A second circuit (11) is connected to the third circuit (5) and the switching circuit (6) respectively, and the second circuit (11) is provided with a second stop valve (12), a pressure reducing valve (13), a first pressure regulating pipeline (14) and a second pressure regulating pipeline (15); A common rail pipe (18) is in communication with the second circuit (11), and a plurality of branches are connected to the common rail pipe (18), each of which is provided with a third stop valve (19).

2. A cylinder liner pump pressure test device according to claim 1, characterized in that: The pressure reducing valve (13) is arranged between the first pressure regulating pipeline (14) and the second pressure regulating pipeline (15), and the first pressure regulating pipeline (14) and the second pressure regulating pipeline (15) are both provided with a first stop valve (16) and a pressure gauge (17).

3. A cylinder liner pump pressure test device according to claim 1, characterized in that: Also includes: A female connector (20) is mounted on the end of each branch of the common rail pipe (18), and a push sleeve (21) is slidably provided on the female connector (20); A male connector (22) is installed at the end of the water inlet pipe (1) and is compatible with the female connector (20); The mounting mechanism (23) is arranged on the common rail tube (18) and is used to drive the plurality of male connectors (22) to be synchronously connected to the female connector (20).

4. A cylinder liner pump pressure test device according to claim 3, characterized in that: The male connector (22) is provided with a disc (24), and the mounting mechanism (23) comprises: A support plate (231) is arranged on the common rail pipe (18), and the support plate (231) is slidably provided with a first sliding sleeve (232) and a second sliding sleeve (233); A clamping component (234), provided on the first sliding sleeve (232), and used for clamping the male connector (22); The pushing component (235) is arranged on the second sliding sleeve (233) and is used to drive the pushing sleeve (21) to move.

5. A cylinder liner pump pressure test device according to claim 4, characterized in that: The clamping member (234) comprises: A long plate (2341), the upper end of which is connected to the first sliding sleeve (232), and the lower end of which is provided with a plurality of baffle groups, each of which includes two baffle plates (2342), and the baffle plates (2342) are provided with through holes (2343) adapted to the male connector (22); The stopper (2344) is elastically disposed in the through hole (2343), and the lower end of the stopper (2344) is an inclined surface.

6. A cylinder liner pump pressure test device according to claim 5, characterized in that: An inner groove (25) is provided in the baffle plate (2342), the baffle block (2344) is slidably connected to the inner groove (25), and a first elastic member (26) is provided between the inner wall of the inner groove (25) and the baffle block (2344).

7. A cylinder liner pump pressure test device according to claim 4, characterized in that: The pushing component (235) comprises: A transfer rod (2351) is arranged at the bottom of the second sliding sleeve (233), and a plurality of push rods (2352) are arranged on the transfer rod (2351); The support plate (2353) is arranged on the support plate (231), and a second elastic member (2354) is arranged between the support plate (2353) and the second sliding sleeve (233).

8. A cylinder liner pump pressure test device according to claim 5, characterized in that: A push block (27) is provided on the long plate (2341), a transmission cavity (28) is provided in the second sliding sleeve (233), a shift rod (29) and a trigger rod (30) are slidably provided in the transmission cavity (28), and a first wedge block (31) and a second wedge block (32) which are slidably adapted are respectively provided on the shift rod (29) and the trigger rod (30).

9. A cylinder liner pump pressure test device according to claim 8, characterized in that: A shift groove (33) is provided in the transmission cavity (28), a slider (34) connected to the shift rod (29) is slidably provided in the shift groove (33), and a third elastic member (35) is provided between the slider (34) and the inner wall of the shift groove (33).

10. A cylinder liner pump pressure test device according to claim 5, characterized in that: The long plate (2341) is also provided with a plurality of lifting racks (36), each of which is provided with a through hole, and a curved plate (37) is provided on one side of the through hole. A screw rod (38) is threadedly connected to the lifting rack (36), and one end of the screw rod (38) extends into the through hole and is rotatably connected to a clamping plate (39).

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