Detachable self-plugging connecting assembly and actuator testing device applying same

Abstract

The invention relates to the field of actuator testing, in particular to a detachable self-plugging connecting assembly and an actuator testing device applying the detachable self-plugging connecting assembly. The connecting assembly comprises a shell, a connecting disc, a connecting bolt, a liquid inlet plugging mechanism and a liquid outlet plugging mechanism, the shell is provided with a liquid inlet end and a liquid outlet end, a separator is arranged between the liquid inlet end and the liquid outlet end and divides the interior of the shell into a connecting cavity and a fluid cavity which are isolated from each other, and a liquid inlet is formed in the position, over the fluid cavity, of the liquid inlet end; a liquid outlet is formed in the position, directly facing the liquid cavity, of the liquid outlet end; the connecting disc is used for being connected with an actuator and is provided with a through hole for communicating the liquid outlet with the actuator; the connecting bolt penetrates through the connecting cavity and is in threaded connection with the shell and the connecting disc. The liquid inlet plugging mechanism is used for plugging the liquid inlet, and the liquid outlet plugging mechanism is used for plugging the liquid outlet. When the actuator is disassembled, the pipeline can be blocked, liquid is prevented from flowing out of the pipeline, the trouble of cleaning is avoided, and the testing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of actuator testing, and in particular to a disassembly self-sealing connection component and an actuator testing device using the same. Background Art

[0002] In industrial automation and related fields, the performance of the actuator plays a vital role in the operation of the entire system. It directly affects the control accuracy, response speed, energy efficiency and other aspects of the system. Testing the performance of the actuator is very important. However, the existing actuator testing devices have many limitations.

[0003] First, the actuator is tested on a test device. After completing the test of one actuator, it needs to be disassembled and replaced with another one. When disassembling the actuator, a large amount of liquid remaining in the pipeline may flow out along the pipeline. At this time, the operator needs to clean it, which increases the workload, is not conducive to improving the detection efficiency, and affects the test environment.

[0004] Secondly, the existing testing equipment cannot meet the testing requirements of the actuator under different working conditions, so it is necessary to constantly disassemble and install the actuator to be tested, which makes the overall operation more complicated and affects the testing efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a disassembly self-sealing connection assembly, which can seal the pipeline when the actuator is disassembled, prevent liquid from flowing out of the pipeline, avoid the trouble of cleaning, and improve testing efficiency.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a disassembly self-sealing connection assembly, comprising:

[0007] A shell having a liquid inlet end and a liquid outlet end opposite to each other, a partition is arranged between the liquid inlet end and the liquid outlet end, the partition divides the shell into a connecting cavity and a fluid cavity isolated from each other, the liquid inlet end is used to be connected to a pipeline, and a liquid inlet is arranged at a position facing the fluid cavity, and a liquid outlet is arranged at a position facing the fluid cavity;

[0008] A connecting plate, used for connecting with the actuator, and having a through hole for connecting the liquid outlet and the actuator;

[0009] A connecting bolt passes through the connecting cavity and is threadedly connected to the housing and the connecting plate respectively;

[0010] The liquid inlet blocking mechanism comprises a blocking block and a connecting rod, one end of the connecting rod is rotatably sleeved on the connecting bolt, and the other end is sealed through the partition and fixedly connected to the blocking block, and the partition is configured not to interfere with the movement of the blocking block with the connecting bolt;

[0011] The liquid outlet blocking mechanism comprises a blocking plate and an elastic member, wherein the blocking plate is movably mounted on the liquid outlet end, and the elastic member is arranged between the liquid outlet end and the blocking plate; wherein,

[0012] When the connecting bolt is screwed out, the connecting rod drives the blocking block to move to block the liquid inlet, and the blocking plate moves to block the liquid outlet under the rebound of the elastic member;

[0013] During the screwing process of the connecting bolt, the connecting rod drives the blocking block to move to open the liquid inlet, and pushes the blocking plate to overcome the elastic force of the elastic member to move to open the liquid outlet.

[0014] In order to further enable the fluid to flow more smoothly in the shell, the partitions are configured with two, the connecting cavity has two symmetrical ones about the fluid cavity, the liquid inlet, the liquid outlet, the connecting bolt, the liquid inlet sealing mechanism and the liquid outlet sealing mechanism have two respectively, and the sealing blocks of the two liquid inlet sealing mechanisms are arranged at intervals.

[0015] In order to further prevent the shell from detaching from the connecting plate during the rotation of the connecting bolt, the liquid outlet end has a protrusion protruding toward the connecting plate, the liquid outlet is arranged on the protrusion, the connecting plate has an embedding groove that cooperates with the protrusion and is used for the protrusion to be embedded, and the opening of the through hole is located at the bottom of the embedding groove.

[0016] In order to further constrain the moving path of the blocking block, the blocking block is slidably mounted on the inner wall of the raised portion.

[0017] A specific structure of a partition is further provided, the partition comprising a sealing plate, the liquid inlet end and the liquid outlet end are respectively provided with a sealing cavity, each end of the sealing plate is sealed and slidably fitted in a sealing cavity, and when the sealing plate moves with the connecting bolt, its two ends never separate from the sealing cavity in which they are located.

[0018] In order to enable the blocking block to better block the liquid inlet, the blocking block is provided with a sealing plug, and the sealing block is used to block the liquid inlet through the sealing plug;

[0019] In order to enable the sealing plate to better seal the liquid outlet, the sealing plate is provided with a sealing pad, and the sealing plate is used to seal the liquid outlet through the sealing pad.

[0020] A moving installation method of a blocking plate is further provided, wherein the blocking plate is rotatably installed on the liquid outlet end, the blocking plate is provided with a rocker arm, and the elastic member and the blocking block are respectively used to act on the rocker arm.

[0021] In order to implement the testing of the actuator under various working conditions, the present invention also relates to an actuator testing device, including a water tank, a test pipe, a return pipe, a stop valve, a water pump, a filter, an upstream electric throttling ball valve, an electromagnetic flowmeter, two disassembly self-sealing connection components, a downstream electric throttling ball valve, a bypass pipe and a bypass electric ball valve; wherein,

[0022] The water tank, the stop valve, the water pump, the filter, the upstream electric throttling ball valve, and the electromagnetic flowmeter are sequentially connected in series on the test tube along the liquid flow direction;

[0023] The liquid inlet end of the shell of a disassembled self-sealing connection assembly is connected to the outlet of the test tube, and the connection plate is used to be connected to one end of the actuator; the liquid outlet end of the shell of another disassembled self-sealing connection assembly is connected to the inlet of the reflux pipe, and the connection plate is used to be connected to the other end of the actuator.

[0024] The downstream electric throttling ball valve is connected in series to the return pipe, and the outlet of the return pipe is connected to the water tank;

[0025] The bypass pipe is connected between a position of the test pipe between the water pump and the upstream electric throttling ball valve and a position of the return pipe downstream of the downstream electric throttling ball valve, and the bypass electric ball valve is arranged on the bypass pipe.

[0026] Furthermore, the actuator testing device also includes a voltage stabilizer, which is connected in series to the test pipe at a position between the water pump and the upstream electric throttling ball valve, and the connection position between the bypass pipe and the test pipe is located upstream of the voltage stabilizer.

[0027] After adopting the above technical solution, the present invention has the following beneficial effects:

[0028] 1. The present invention can seal the liquid outlet and liquid inlet of the shell of the connection assembly during the process of disassembling the actuator, with high reliability, ensuring that when the actuator is disassembled, the water inside the pipeline will not flow out, and the operator does not need to clean it separately, which will not affect the test speed;

[0029] 2. The present invention divides the housing into a fluid chamber and a connection chamber by a separator, thereby preventing the liquid entering and flowing through the housing from leaking out. After the actuator is removed, the constant pressure of the fluid chamber can be ensured, which can protect the separator and facilitate the long-term use of the entire disassembled self-sealing connection assembly.

[0030] 3. The actuator testing device of the present invention provides a variety of experimental environments to meet the testing requirements of the actuator under different working conditions and has a wide testing range. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a disassembly self-sealing connection assembly of the present invention;

[0032] Figure 2 for Figure 1 A magnified view of part A;

[0033] Figure 3 It is a structural schematic diagram of the actuator testing device of the present invention;

[0034] Figure 4 for Figure 3 A magnified view of part B;

[0035] In the figure:

[0036] 1. Shell; 11. Liquid inlet end; 111. Liquid inlet port; 12. Liquid outlet end; 121. Liquid outlet port; 13. Protrusion; 2. Separator; 21. Sealing plate; 22. Sealing cavity; 3. Connecting cavity; 4. Fluid cavity; 5. Connecting plate; 51. Through hole; 52. Embedding groove; 6. Connecting bolt; 7. Liquid inlet blocking mechanism; 71. Blocking block; 711. Sealing plug; 72. Connecting rod; 8. Liquid outlet blocking mechanism; 81. Blocking plate; 811. Blocking pad; 812. Rocker arm; 82. Elastic member;

[0037] 10. Actuator; 20. Water tank; 30. Test pipe; 40. Return pipe; 50. Stop valve; 60. Water pump; 70. Filter; 80. Upstream electric throttling ball valve; 90. Electromagnetic flowmeter; 100. Downstream electric throttling ball valve; 110. Bypass pipe; 120. Bypass electric ball valve; 130. Voltage stabilizer. DETAILED DESCRIPTION

[0038] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0039] Embodiment 1

[0040] like Figure 1 and Figure 2 As shown, a disassembly self-sealing connection assembly comprises:

[0041] The housing 1 has a liquid inlet end 11 and a liquid outlet end 12 which are arranged opposite to each other, a partition 2 is arranged between the liquid inlet end 11 and the liquid outlet end 12, and the partition 2 divides the housing 1 into a connecting chamber 3 and a fluid chamber 4 which are isolated from each other, the liquid inlet end 11 is used to be connected to a pipeline, and a liquid inlet 111 is arranged at a position facing the fluid chamber 4, and a liquid outlet 121 is arranged at a position facing the fluid chamber 4;

[0042] The connecting plate 5 is used to connect with the actuator 10 and has a through hole 51 for connecting the liquid outlet 121 and the actuator 10;

[0043] The connecting bolt 6 passes through the connecting cavity 3 and is threadedly connected to the housing 1 and the connecting plate 5 respectively;

[0044] The liquid inlet blocking mechanism 7 comprises a blocking block 71 and a connecting rod 72. One end of the connecting rod 72 is rotatably mounted on the connecting bolt 6, and the other end is sealed through the partition 2 and fixedly connected to the blocking block 71. The partition 2 is configured not to interfere with the blocking block 71 moving with the connecting bolt 6.

[0045] The liquid outlet blocking mechanism 8 comprises a blocking plate 81 and an elastic member 82. The blocking plate 81 is movably mounted on the liquid outlet end 12, and the elastic member 82 is disposed between the liquid outlet end 12 and the blocking plate 81; wherein,

[0046] When the connecting bolt 6 is screwed out, the connecting rod 72 drives the blocking block 71 to move to block the liquid inlet 111, and the blocking plate 81 moves to block the liquid outlet 121 under the rebound of the elastic member 82;

[0047] During the screwing process of the connecting bolt 6 , the connecting rod 72 drives the blocking block 71 to move to open the liquid inlet 111 , and pushes the blocking plate 81 to overcome the elastic force of the elastic member 82 to move to open the liquid outlet 121 .

[0048] Specifically, in this embodiment, the fluid chamber 4 and the connection chamber 3 are separated by the partition 2, so that the fluid can be prevented from leaking out from the connection bolt 6. When the actuator 10 needs to be removed, the connection bolt 6 is screwed out, and the connection bolt 6 gradually separates from the blocking plate 81 during the screwing out process. The blocking plate 81 moves to the position of blocking the liquid outlet 121 under the rebound action of the elastic member 82, thereby achieving the blocking of the liquid outlet 121 of the housing 1, ensuring that when the actuator 10 is disassembled, the water inside the pipeline will not flow out, and the operator does not need to clean it separately, which will not affect the test speed.

[0049] Considering that the partition 2 plays a role of separation and does not interfere with the movement of the connecting rod 72 and the blocking block 71, the partition 2 is not very hard and is easy to deform. When the liquid outlet 121 is blocked, if a large amount of water in the pipeline flows into the fluid chamber 4, it will inevitably squeeze the partition 2 from the inside, causing the partition 2 to be greatly deformed or even damaged and ineffective. In this embodiment, the connecting bolt 6 also drives the blocking block 71 toward the liquid outlet 11 through the connecting rod 72 during the unscrewing process, so that the blocking block 71 blocks the liquid inlet 111, thereby achieving the blocking of the liquid inlet 111 of the shell 1, ensuring that the entire fluid chamber 4 is a closed space and will not be affected by external pressure. No matter how large the impact force of the water in the pipeline is, the fluid chamber 4 is at a constant pressure at this time, and will not squeeze the partition 2, thereby protecting the partition 2. In addition, this embodiment seals the liquid inlet 111 and the liquid outlet 121 at the same time, which is more reliable.

[0050] When reconnecting the actuator 10, screw in the connecting bolt 6, and the connecting bolt 6 drives the blocking block 71 to move to the position of opening the liquid inlet 111 through the connecting rod 72. During the movement, the blocking block 71 acts on the blocking plate 8, so that the blocking plate 81 can overcome the elastic force of the elastic member 82 and move to the position of opening the liquid outlet 121. That is to say, this embodiment can also automatically open the liquid inlet 111 and the liquid outlet 121 during the installation of the actuator 10, which is convenient and will not affect the flow of the fluid through the fluid cavity 4.

[0051] In this embodiment, preferably, Figure 1 As shown, two partitions 2 are configured, the connecting chamber 3 has two symmetrical ones about the fluid chamber 4, the liquid inlet 111, the liquid outlet 121, the connecting bolt 6, the liquid inlet sealing mechanism 7 and the liquid outlet sealing mechanism 8 have two respectively, and the sealing blocks 71 of the two liquid inlet sealing mechanisms 7 are arranged at intervals.

[0052] Specifically, the liquid inlet 111, the liquid outlet 121, the connecting bolt 6, the liquid inlet sealing mechanism 7 and the liquid outlet sealing mechanism 8 are respectively provided with two. On the one hand, the balance of the structure can be ensured. On the other hand, the liquid flowing into the fluid cavity 4 from the two liquid inlets 111 can use the interval between the two sealing blocks 71 as a flow channel to flow into the liquid outlet 121. That is, when the liquid inlet 111 and the liquid outlet 121 are both opened, the flow resistance of the liquid in the fluid cavity 4 can be reduced as much as possible.

[0053] In this embodiment, if Figure 1 As shown, the partition 2 includes a sealing plate 21, and the liquid inlet end 11 and the liquid outlet end 12 are respectively provided with a sealing cavity 22, and each end of the sealing plate 21 is sealed and slidably fitted in a sealing cavity 22. When the sealing plate 21 moves with the connecting bolt 6, its two ends never separate from the sealing cavity 22 in which they are located.

[0054] It should be noted that the structure of the separator 2 is not limited to this, and can also be a bellows. The space surrounded by the bellows is the fluid chamber 4. The bellows itself has a telescopic space, and the connecting rod 72 is connected to the middle position of the bellows. Figure 1 In the structure shown, the sealing plate 21 is not too flexible and will not be greatly deformed when liquid flows through the fluid cavity 4. The surface is relatively smooth and will not impose a large flow resistance on the liquid.

[0055] In this embodiment, if Figure 1 As shown, the sealing block 71 is provided with a sealing plug 711, and the sealing block is used to seal the liquid inlet 111 through the sealing plug 711. In this way, the liquid inlet 111 can be better and more reliably sealed.

[0056] like Figure 1 and Figure 2 As shown, the blocking plate 81 is provided with a blocking pad 811, and the blocking plate 81 is used to block the liquid outlet 121 through the blocking pad 811. In this way, the liquid outlet can be blocked better and more reliably.

[0057] In this embodiment, if Figure 1 and Figure 2 As shown, the blocking plate 81 is rotatably mounted on the liquid outlet 12, and the blocking plate 81 is provided with a rocker 812, and the elastic member 82 and the blocking block 71 are respectively used to act on the rocker 812. A roller can also be configured at the part of the rocker 812 used to contact the blocking block 71, and the roller and the blocking block 71 are in rolling contact.

[0058] Specifically, in the process of the blocking block 71 moving toward the liquid outlet 12 and pushing the rocker arm 812, the blocking block 71 rotates away from the liquid outlet 121, thereby opening the liquid outlet 121. In the process of the blocking block 71 moving toward the liquid inlet end 11, the pressing force of the blocking block 71 on the rocker arm 812 gradually decreases until it disappears. Under the rebound action of the elastic member 82, the rocker arm 812 causes the blocking plate 81 to rotate toward the liquid outlet 121, thereby blocking the liquid outlet 121.

[0059] It should be noted that the elastic member 82 may be a torsion spring, a tension spring, etc. The installation method of the blocking plate 81 is not limited thereto, and the blocking plate 81 may also be installed in a sliding manner, and the surface for contacting the blocking block 71 may be an inclined surface, and the blocking block 71 moves toward the liquid outlet 12, and the blocking block 71 is pushed to slide and block the liquid outlet 121 by cooperating with the inclined surface.

[0060] Embodiment 2

[0061] Based on the first embodiment, Figure 1As shown, the liquid outlet 12 has a protrusion 13 protruding toward the connecting disk 5, the liquid outlet 121 is arranged on the protrusion 13, the connecting disk 5 has an embedding groove 52 that cooperates with the protrusion 13 and is used for the protrusion 13 to be embedded, and the opening of the through hole 51 is located at the bottom of the embedding groove 52.

[0062] With such a configuration, the housing 1 and the connecting plate 5 can be pre-positioned and pre-connected through the cooperation of the embedded groove 52 and the protrusion 13. During the process of disassembling the actuator 10, the actuator 10 can be prevented from being misplaced or skewed, and the actuator 10 can be prevented from falling directly after the connecting bolt 6 is removed.

[0063] In this embodiment, preferably, Figure 1 As shown, the blocking block 71 is slidably mounted on the inner wall of the raised portion 13. In this way, the moving path of the blocking block 71 can be constrained to ensure that the blocking block 71 slides back and forth on a predetermined path.

[0064] Embodiment 3

[0065] like Figures 1 to 4 As shown, an actuator testing device includes a water tank 20, a test pipe 30, a return pipe 40, a stop valve 50, a water pump 60, a filter 70, an upstream electric throttling ball valve 80, an electromagnetic flowmeter 90, two disassembly self-sealing connection assemblies as in the first or second embodiment, a downstream electric throttling ball valve 100, a bypass pipe 110 and a bypass electric ball valve 120; wherein,

[0066] The water tank 20, the stop valve 50, the water pump 60, the filter 70, the upstream electric throttling ball valve 80, and the electromagnetic flowmeter 90 are sequentially connected in series on the test tube 30 along the liquid flow direction;

[0067] The liquid inlet end 11 of the housing 1 of a disassembled self-sealing connection assembly is connected to the outlet of the test tube 30, and the connection plate 5 is used to be connected to one end of the actuator 10; the liquid outlet end 12 of the housing 1 of another disassembled self-sealing connection assembly is connected to the inlet of the return pipe 40, and the connection plate 5 is used to be connected to the other end of the actuator 10; the actuator 10 can be a valve body, etc.

[0068] The downstream electric throttling ball valve 100 is connected in series to the return pipe 40, and the outlet of the return pipe 40 is connected to the water tank 20;

[0069] The bypass pipe 110 is connected between a position of the test pipe 30 between the water pump 60 and the upstream electric throttle ball valve 80 and a position of the return pipe 40 downstream of the downstream electric throttle ball valve 100 , and a bypass electric ball valve 120 is disposed on the bypass pipe 110 .

[0070] The testing process of the actuator 10 is as follows:

[0071] The connection plates 5 at both ends of the actuator 10 to be tested are connected to the connecting housing 1 on the test pipe 30 and the return pipe 40 respectively. During the connection process, the liquid inlet 111 and the liquid outlet 121 of the housing 1 are opened.

[0072] After the connection is completed, when the bypass electric ball valve 120 is closed and the tested actuator 10 is opened, the closed-loop automatic control loop of a certain process parameter of the tested actuator 10 can be formed, and the upstream electric throttling ball valve 80 and the downstream electric throttling ball valve 100 can be adjusted to provide a test environment for manually and / or automatically establishing adjustable process parameters such as front pressure, rear pressure, and flow for the tested actuator 10. And when the bypass electric ball valve 120 is opened and the tested actuator 10 is closed, the water supply of the water pump 60 mainly returns to the water tank 20 from the test pipe 30, but there will still be static pressure on one side of the tested actuator 10 in the closed state. By adjusting the output of the water pump 60 by frequency conversion, the static pressure acting on one side of the tested actuator 10 will also change accordingly, so that the internal leakage of the tested actuator 10 under different static pressures can be simulated, and the detection range is wider.

[0073] When the inspection is completed, the operator needs to disassemble the tested actuator 10 as a whole. First, the operator needs to rotate the connecting bolt 6. At this time, the connecting bolt 6 can be moved out from the inside of the connecting plate 5 during the rotation, and during the rotation of the connecting bolt 6, the connecting bolt 6 drives the connecting rod 72 to slide horizontally, and the connecting rod 72 drives the partition 2 to move, ensuring that the fluid cavity 4 where the sealing block 71 is located and the connecting cavity 3 penetrated by the connecting bolt 6 are not connected, thereby ensuring the sealing.

[0074] When the connecting rod 72 slides, it will drive the sealing block 71 to slide together to achieve the sealing of the liquid inlet 111. During this process, the other end of the sealing block 71 is separated from the sealing plate 81. At this time, the sealing plate 81 is reset by the elastic member 82 to achieve the sealing of the liquid outlet 121, so that the liquid inside the test tube 30 and the reflux tube 40 is completely sealed, so that when the actuator 10 is disassembled, the leakage of liquid inside the pipeline can be avoided.

[0075] Embodiment 4

[0076] Based on the third embodiment, Figure 1 As shown, the actuator testing device further includes a voltage regulator 130 , which is connected in series to the test pipe 30 between the water pump 60 and the upstream electric throttling ball valve 80 , and the connection position between the bypass pipe 110 and the test pipe 30 is located upstream of the voltage regulator 130 .

[0077] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A disassembly self-sealing connection assembly, characterized in that: include: A housing (1) having a liquid inlet end (11) and a liquid outlet end (12) arranged opposite to each other, a partition (2) being arranged between the liquid inlet end (11) and the liquid outlet end (12), the partition (2) dividing the interior of the housing (1) into a connecting chamber (3) and a fluid chamber (4) which are isolated from each other, the liquid inlet end (11) being used for connecting to a pipeline, and having a liquid inlet (111) arranged at a position facing the fluid chamber (4), and the liquid outlet end (12) being arranged at a position facing the fluid chamber (4) with a liquid outlet (121); A connecting plate (5) for connecting to an actuator (10), and having a through hole (51) for connecting the liquid outlet (121) and the actuator (10); A connecting bolt (6) passes through the connecting cavity (3) and is threadedly connected to the housing (1) and the connecting plate (5) respectively; A liquid inlet blocking mechanism (7) comprises a blocking block (71) and a connecting rod (72), one end of the connecting rod (72) being rotatably sleeved on the connecting bolt (6), and the other end of the connecting rod being sealed through the partition (2) and then fixedly connected to the blocking block (71), the partition (2) being configured not to interfere with the blocking block (71) moving with the connecting bolt (6); The liquid outlet blocking mechanism (8) comprises a blocking plate (81) and an elastic member (82), wherein the blocking plate (81) is movably mounted on the liquid outlet end (12), and the elastic member (82) is arranged between the liquid outlet end (12) and the blocking plate (81); wherein: When the connecting bolt (6) is screwed out, the connecting rod (72) drives the blocking block (71) to move to block the liquid inlet (111), and the blocking plate (81) moves to block the liquid outlet (121) under the rebound of the elastic member (82); During the screwing process of the connecting bolt (6), the connecting rod (72) drives the blocking block (71) to move to open the liquid inlet (111), and pushes the blocking plate (81) to overcome the elastic force of the elastic member (82) and move to open the liquid outlet (121).

2. The disassembly self-sealing connection assembly according to claim 1, characterized in that: The partition (2) is configured with two, the connecting chamber (3) has two symmetrical ones with respect to the fluid chamber (4), the liquid inlet (111), the liquid outlet (121), the connecting bolt (6), the liquid inlet blocking mechanism (7) and the liquid outlet blocking mechanism (8) each have two, and the blocking blocks (71) of the two liquid inlet blocking mechanisms (7) are arranged at intervals.

3. The disassembly self-sealing connection assembly according to claim 1, characterized in that: The liquid outlet end (12) has a protruding portion (13) protruding toward the connecting disk (5), the liquid outlet (121) is arranged on the protruding portion (13), the connecting disk (5) has an embedding groove (52) matching with the protruding portion (13) and used for the protruding portion (13) to be embedded, and the opening of the through hole (51) is located at the bottom of the embedding groove (52).

4. The disassembly self-sealing connection assembly according to claim 3, characterized in that: The blocking block (71) is slidably mounted on the inner wall of the raised portion (13).

5. The disassembly self-sealing connection assembly according to claim 1, characterized in that: The partition (2) comprises a sealing plate (21), the liquid inlet end (11) and the liquid outlet end (12) are respectively provided with a sealing cavity (22), each end of the sealing plate (21) is sealingly slidably fitted in a sealing cavity (22), and when the sealing plate (21) moves with the connecting bolt (6), the two ends thereof never separate from the sealing cavity (22) in which they are located.

6. The disassembly self-sealing connection assembly according to claim 1, characterized in that: The sealing block (71) is provided with a sealing plug (711), and the sealing block is used to seal the liquid inlet (111) through the sealing plug (711); And / or the blocking plate (81) is provided with a blocking pad (811), and the blocking plate (81) is used to block the liquid outlet (121) through the blocking pad (811).

7. The disassembly self-sealing connection assembly according to claim 1, characterized in that: The blocking plate (81) is rotatably mounted on the liquid outlet end (12); the blocking plate (81) is provided with a rocker arm (812); and the elastic member (82) and the blocking block (71) are respectively used to act on the rocker arm (812).

8. An actuator testing device, characterized in that: It comprises a water tank (20), a test pipe (30), a return pipe (40), a stop valve (50), a water pump (60), a filter (70), an upstream electric throttling ball valve (80), an electromagnetic flowmeter (90), two disassembly self-sealing connection assemblies according to any one of claims 1 to 7, a downstream electric throttling ball valve (100), a bypass pipe (110) and a bypass electric ball valve (120); wherein, The water tank (20), the stop valve (50), the water pump (60), the filter (70), the upstream electric throttling ball valve (80), and the electromagnetic flowmeter (90) are sequentially connected in series on the test tube (30) along the liquid flow direction; The liquid inlet end (11) of the housing (1) of a disassembled self-sealing connection assembly is connected to the outlet of the test tube (30), and the connection plate (5) is used to be connected to one end of the actuator (10); the liquid outlet end (12) of the housing (1) of another disassembled self-sealing connection assembly is connected to the inlet of the return pipe (40), and the connection plate (5) is used to be connected to the other end of the actuator (10). The downstream electric throttling ball valve (100) is connected in series to the return pipe (40), and the outlet of the return pipe (40) is connected to the water tank (20); The bypass pipe (110) is connected between a position of the test pipe (30) between the water pump (60) and the upstream electric throttling ball valve (80) and a position of the return pipe (40) downstream of the downstream electric throttling ball valve (100), and the bypass electric ball valve (120) is arranged on the bypass pipe (110).

9. The actuator testing device according to claim 8, characterized in that: It also includes a pressure stabilizer (130), which is connected in series to a position of the test pipe (30) between the water pump (60) and the upstream electric throttling ball valve (80), and the connection position between the bypass pipe (110) and the test pipe (30) is located upstream of the pressure stabilizer (130).

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