A pump press tool

Abstract

The utility model relates to marine high -pressure spare pump pressure technical field discloses a kind of pump pressure tool, for carrying out pump pressure to high pressure piece product, including tool body, plug and connecting piece, wherein, the first flow channel of multiple distribution along first direction and the second flow channel of multiple distribution along second direction are set in the tool body inside, the first flow channel and the second flow channel cross distribution, the top surface of the tool body is equipped with multiple connection group holes, the connection group hole is communicated with the first flow channel and the second flow channel, pipeline interface for air inlet or water inlet is set on the side surface of the tool body, the pipeline interface is communicated with one of the first flow channel or communicated with one of the second flow channel;Standardized connection group hole is set, can be adapted to multiple high pressure pieces, and expansibility is good, multiple high pressure pieces can be tested simultaneously or multiple different types of high pressure pieces can be tested simultaneously;Production cost is low, and test efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of marine high-pressure component pump technology, and in particular to a pump tooling. Background Technology

[0002] Currently, after the various high-pressure connectors, high-pressure cabin components, and high-pressure valves used in ships are machined, they need to undergo various pump pressure tests to ensure that there are no leaks.

[0003] For example, Chinese utility model patent with publication number CN114046944A discloses a pump pressure test fixture and test method for marine cryogenic valves.

[0004] The above-mentioned technical solutions are specifically designed for flanged or welded cryogenic valves, resulting in poor versatility, high manufacturing and maintenance costs, and an inability to be flexibly applied to testing different types of high-pressure components. Furthermore, the above solutions can only perform pressure testing on valves, which is relatively limited. Moreover, the increase in parallel capability in the above solutions depends on increasing the number of pump plates and connecting rods, which makes the structure larger and reduces its scalability. Utility Model Content

[0005] To overcome at least one of the defects described in the prior art, this utility model provides a pump pressure fixture. It features standardized connection holes, allowing it to adapt to various high-pressure components, and offers good expandability, enabling simultaneous testing of multiple high-pressure components or multiple different types of high-pressure components. It also boasts low production costs and high testing efficiency.

[0006] The technical solution of this utility model is implemented as follows: A pumping fixture for pumping high-pressure components includes a fixture body, a plug, and a connector. The fixture body has multiple first flow channels distributed along a first direction and multiple second flow channels distributed along a second direction, with the first and second flow channels intersecting. The top surface of the fixture body has multiple connecting holes communicating with the first and second flow channels. One side surface of the fixture body has a pipe interface for air or water inlet, communicating with one of the first flow channels or one of the second flow channels. One end of the connector is sealed to the connecting holes, and the other end is sealed to one end of the high-pressure component. The connector has a through-hole allowing gas or liquid to enter the high-pressure component. The plug is located at the other end of the high-pressure component and is sealed to it.

[0007] Based on the above technical solutions, preferably, the connecting hole group includes a first section hole, a middle section hole, and a second section hole arranged longitudinally in sequence. The first section hole has a tubular structure, and its bottom surface communicates with the first flow channel and the second flow channel. The middle section hole has a frustum-shaped structure, with its top surface cross-sectional area larger than its bottom surface cross-sectional area, and its bottom surface communicates with the top surface of the first section hole. The second section hole has a tubular structure, with its cross-sectional area being the same as the top surface cross-sectional area of ​​the middle section hole, and its bottom surface communicates with the top surface of the middle section hole.

[0008] Based on the above technical solutions, preferably, the connector includes a first connector and a second connector, wherein the first connector is elliptical in shape and has a through hole that communicates with the first segment hole, and the outer peripheral surface of the first connector abuts against the inner peripheral surface of the middle segment hole; the bottom end of the second connector has a second through hole that is frustum-shaped, the bottom cross-sectional area of ​​the second through hole is larger than the top cross-sectional area of ​​the second through hole, the outer peripheral surface of the first connector also abuts against the inner peripheral surface of the second through hole, and the inner surface of the second segment hole is spirally connected to the outer surface of the second connector.

[0009] Based on the above technical solution, preferably, the second connector is further provided with a third through hole and a fourth through hole, the second through hole, the third through hole and the fourth through hole are sequentially connected, and the fourth through hole is formed by recessing inward from the top surface of the second connector.

[0010] Based on the above technical solutions, preferably, the high-voltage component product is a single high-voltage component product or at least two high-voltage component products connected in series.

[0011] Based on the above technical solutions, preferably, a first sealing ring is provided between the high-pressure component and the bottom surface of the fourth through hole.

[0012] Based on the above technical solutions, preferably, the bottom end of the plug has an opening, the inner surface of the opening is spirally connected to the outer surface of the high-pressure component, and a second sealing ring is provided between the high-pressure component and the top surface of the opening.

[0013] Based on the above technical solutions, preferably, one end of the first flow channel and one end of the second flow channel extend outward to form a deep hole that communicates with the outside world, and the deep hole is used for venting or draining.

[0014] Based on the above technical solutions, preferably, a fastener is detachably provided at the deep hole.

[0015] In summary, the pump pressure fixture provided by this utility model has the following advantages over the prior art: (1) By setting the first flow channel, the second flow channel, the connecting group hole and the replaceable connector, a universal interface is formed, which makes it convenient to replace high-voltage products of different specifications and types, and the compatibility is better. (2) It can not only test the pumping capacity of a single high-pressure component, but also test the pumping capacity of multiple pumps in series, and can also test the pumping capacity of multiple high-pressure components at the same time, realizing parallel pumping, with a compact structure and higher pumping efficiency. (3) By integrating the first flow channel and the second flow channel, the number of parts and assembly complexity are reduced, and the replacement cost is low and the operation is simple. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is an exploded view of an embodiment of the present utility model; Figure 3 This is a first-view cross-sectional view of the tooling body according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the first connector according to an embodiment of the present utility model; Figure 5 This is a cross-sectional view of the first connector according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the second connector according to an embodiment of the present utility model; Figure 7 This is a cross-sectional view of the second connector according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the plug according to an embodiment of the present utility model; Figure 9 This is a cross-sectional view of the plug according to an embodiment of the present utility model; Figure 10 This is an overall cross-sectional view of an embodiment of the present utility model; Figure 11 This is a schematic diagram of a high-voltage component according to an embodiment of the present utility model; Figure 12 This is a second-view cross-sectional view of the tooling body according to an embodiment of the present utility model; Figure 13 This is a schematic diagram of the pump pressure of a single high-pressure component according to an embodiment of the present invention; Figure 14 This is a schematic diagram of a series pump pressure of multiple high-pressure components according to an embodiment of the present invention; Figure 15 This is a perspective view of yet another embodiment of the present utility model; Figure 16 This is a cross-sectional view of yet another embodiment of the present utility model; Figure 17 This is a top view of yet another embodiment of the present utility model; Figure 18 This is a partial cross-sectional view of yet another embodiment of the present invention.

[0018] The meanings of the reference numerals in the attached drawings are as follows: 1. Tooling body; 11. First flow channel; 111. Deep hole; 1111. Fastener; 12. Second flow channel; 13. Connecting group hole; 131. First section hole; 132. Intermediate section hole; 133. Second section hole; 14. Pipe interface; 2. Plug; 21. Opening; 22. Second sealing ring; 3. Connector; 31. Through hole; 32. First joint; 321. First through hole; 33. Second joint; 331. Second through hole; 332. Third through hole; 333. Fourth through hole; 4. High-pressure component; 41. First sealing ring; 42. Groove; 51. First thread; 52. Second thread; 53. Third thread; 54. Fourth thread; 55. Fifth thread; 56. Sixth thread; 61. Fifth through hole; 62. Sixth through hole. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0020] See Figures 1-14 This utility model discloses a pumping fixture for pumping high-pressure components 4, including a fixture body 1, a plug 2, and a connector 3.

[0021] See Figure 1 and Figure 2As shown, in this embodiment, the tooling body 1 has a rectangular structure with sharp edges and corners, making it easy to manufacture and process. The tooling body 1 has multiple first flow channels 11 distributed along a first direction and multiple second flow channels 12 distributed along a second direction. The first flow channels 11 and the second flow channels 12 are intersected. Specifically, the first direction is the width direction of the tooling body 1, and the second direction is the length direction of the tooling body 1. The first flow channels 11 and the second flow channels 12 are interconnected. This design can ensure that the first flow channels 11 and the second flow channels 12 can be covered when subsequent processes involve ventilation or water supply.

[0022] More specifically, the first flow channel 11 has three channels spaced apart, and the second flow channel 12 has five channels spaced apart. The top surface of the tooling body 1 has multiple connecting holes 13 arranged in a matrix. The connecting holes 13 communicate with the first flow channel 11 and the second flow channel 12. Specifically, in this embodiment, there are 15 intersection points between the first flow channel 11 and the second flow channel 12. The number of connecting holes 13 is the same as the number of intersection points between the first flow channel 11 and the second flow channel 12, also 15. Furthermore, the 15 connecting holes 13 correspond one-to-one with the 15 intersection points of the first flow channel 11 and the second flow channel 12. It should also be noted that the first flow channel 11 and the second flow channel 12 can be selected according to actual conditions. The number of connecting holes 13, being the same as the number of intersection points between the first flow channel 11 and the second flow channel 12, ensures the uniformity of water and air intake within the connecting holes 13.

[0023] Specifically, see Figure 12As shown, in this embodiment, the connecting hole 13 includes a first section hole 131, a middle section hole 132, and a second section hole 133 arranged longitudinally. The first section hole 131, the middle section hole 132, and the second section hole 133 are arranged sequentially from bottom to top. The first section hole 131 has a tubular structure, and its bottom surface is connected to the first flow channel 11 and the second flow channel 12. Gas or liquid passing through the first flow channel 11 and the second flow channel 12 can enter through the first section hole 131. The middle section hole 132 has a frustum-shaped structure, and the cross-sectional area of ​​the top surface of the middle section hole 132 is larger than the cross-sectional area of ​​the bottom surface of the middle section hole 132. The bottom surface of the middle section hole 132 is connected to the top surface of the first section hole 131, and the bottom surface of the middle section hole 132 is connected to the bottom surface of the first section hole 131. The cross-sectional area is also the same, which makes the flow of gas or liquid smoother and reduces blockage; the second section hole 133 is also tubular, and the cross-sectional area of ​​the second section hole 133 is the same as the top cross-sectional area of ​​the middle section hole 132, and the bottom surface of the second section hole 133 is connected to the top surface of the middle section hole 132; the inner wall of the first section hole 131 is flat and smooth, which can ensure the stable flow of gas or liquid from the first flow channel 11 and the second flow channel 12, and avoid the gas or liquid flow being obstructed due to uneven hole walls; the middle section hole 132 facilitates assembly with the subsequent connector 3; there are no steps to obstruct the transition from the middle section hole 132 to the second section hole 133 through the second section hole 133, making the assembly process smoother.

[0024] See Figure 2 and Figure 3 As shown, in this embodiment, one end of the first flow channel 11 and one end of the second flow channel 12 extend outward to form a deep hole 111 communicating with the outside. The deep hole 111 is used for venting or draining. Specifically, in this embodiment, the position of the deep hole 111 of the first flow channel 11 is located in the width direction of the tooling body 1, and the position of the deep hole 111 of the second flow channel 12 is located in the length direction of the tooling body 1. This design allows the gas or liquid in the first flow channel 11 and the gas or liquid in the second flow channel 12 to flow naturally along their own extension direction into the deep hole 111 at the end, avoiding dead corners or residues caused by flow channel bends. Moreover, since both the first flow channel 11 and the second flow channel 12 are provided with deep holes 111, the gas or liquid in the first flow channel 11 and the second flow channel 12 can be quickly discharged after the pump pressure is completed, improving the discharge speed and thus further improving the test efficiency.

[0025] It should also be noted that in some other embodiments, the deep holes 111 can also be set at both ends of the first flow channel 11 and both ends of the second flow channel 12. This design can further increase the discharge speed and improve the test efficiency. The deep holes 111 can also be set only at one end of the first flow channel 11 or only at one end of the second flow channel 12. Although this design reduces the discharge speed, it is convenient to collect the gas or liquid discharged from the deep holes 111 since the deep holes 111 are all at one end, thus improving the collection efficiency.

[0026] In this embodiment, a fastener 1111 is detachably provided at the deep hole 111. Specifically, the fastener 1111 is an internal hexagonal flat-end set screw, and the opening of the deep hole 111 is a tapered pipe thread. It can be spirally connected to the tapered pipe thread by the internal hexagonal flat-end set screw to seal the deep hole 111 and prevent gas or liquid from flowing to the outside during the pump pressure test.

[0027] See Figure 1 , Figure 2 , Figure 3 and Figure 12 As shown, in this embodiment, a pipe interface 14 for air or water intake is opened on one side of the tooling body 1. The pipe interface 14 is connected to one of the first flow channels 11 or one of the second flow channels 12. Specifically, in order to ensure the uniformity of air or water intake, the pipe interface 14 is connected to the middle first through hole 321 or second through hole 331. In this embodiment, the position of the pipe interface 14 occupies the position of one of the deep holes 111. This design eliminates the need for a separate pipe interface 14, simplifies the structure of the tooling body 1, and reduces production and processing costs. It should also be noted that in other embodiments, the position of the pipe interface 14 may not occupy the position of the deep hole 111. The pipe interface 14 may be set on the opposite side of the deep hole 111, which can also achieve the effect of air or water intake.

[0028] In this embodiment, the pipe interface 14 can be welded to the tooling body 1, integrally machined with the tooling body 1, or formed by threaded connection with the tooling body 1, offering more options.

[0029] See Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in this embodiment, one end of the connector 3 is sealed to the connecting hole 13, and the other end is sealed to one end of the high-pressure component product 4. The connector 3 has a through hole 31 so that gas or liquid can enter the high-pressure component product 4 through the through hole 31. The through hole 31 can prevent gas or liquid from stagnating in the connector 3, ensuring that gas or liquid enters the high-pressure component product 4 stably. Moreover, the sealed connection prevents gas or liquid from leaking from the gap between the connector 3 and the connecting hole 13, ensuring the accuracy and safety of the test results.

[0030] See Figure 2 , Figure 8 , Figure 9 and Figure 10 As shown, in this embodiment, the plug 2 is disposed at the other end of the high-pressure component product 4, and the plug 2 is sealed to the high-pressure component product 4. When gas or liquid is introduced, the sealing effect of the plug 2 can prevent gas or liquid from flowing out from the other end of the high-pressure component product 4, ensuring that the gas or liquid completely fills the internal cavity of the high-pressure component product 4. Moreover, in a sealed environment, the gas or liquid inside the high-pressure component product 4 will generate uniform pressure on its weak links such as the inner wall. If there are cracks or surface damage defects, the gas or liquid will leak from the defect, and the leakage point can be accurately located.

[0031] Specifically, the bottom end of the plug 2 has an opening 21, the inner surface of the opening 21 is spirally connected to the outer surface of the high-pressure component product 4, and the opening 21 is located above the high-pressure component product 4. The spiral connection ensures the tightness of the connection between the plug 2 and the high-pressure component product 4, and avoids air or water leakage.

[0032] Among them, both ends of the high-pressure component product 4 are provided with threads, with the upper one being the first thread 51 and the lower one being the second thread 52. The inner surface of the opening 21 is provided with a third thread 53. The first thread 51 and the third thread 53 are spirally connected and tightly connected.

[0033] A second sealing ring 22 is provided between the high-pressure component product 4 and the top surface of the opening 21. The second sealing ring 22 is made of rubber. Under the axial pressure generated by the spiral connection of the plug 2, it will undergo uniform compression deformation, tightly fitting the contact surface between the end of the high-pressure component product 4 and the top surface of the opening 21, completely covering the gap and achieving a gapless sealing effect. Moreover, during the high-pressure test, the gas or liquid pressure will act on the side of the second sealing ring 22, pushing the second sealing ring 22 to be further squeezed into the gap of the contact surface. The higher the pressure, the tighter the second sealing ring 22 fits with the contact surface, and the stronger the sealing ability, which is suitable for the stringent high-pressure test requirements of marine high-pressure components.

[0034] See Figure 4 and Figure 5As shown, in this embodiment, the connector 3 includes a first connector 32 and a second connector 33. The first connector 32 is elliptical in shape and is made of brass. The first connector 32 has a through hole 321, which is connected to the first section hole 131. The outer circumferential surface of the first connector 32 abuts against the inner circumferential surface of the middle section hole 132, that is, the first connector 32 and the inner conical surface of the middle section hole 132 are tangentially fitted to achieve arc-shaped surface contact. The contact area is greatly increased, which can evenly disperse the radial pressure generated by gas or liquid, avoid damage to the sealing surface caused by excessive local pressure, and completely block the leakage channel of gas or liquid. Moreover, brass has good tensile strength and good processing performance, and can be precisely processed into an elliptical shape.

[0035] See Figure 6 and Figure 7 As shown, in this embodiment, the second connector 33 is a stepped shaft structure. The second connector 33 has a second through hole 331, a third through hole 332, and a fourth through hole 333. The second through hole 331, the third through hole 332, and the fourth through hole 333 are arranged sequentially from bottom to top. The second through hole 331 has a frustum-shaped structure, and the bottom cross-sectional area of ​​the second through hole 331 is larger than the top cross-sectional area of ​​the second through hole 331. The outer peripheral surface of the first connector 32 also abuts against the inner peripheral surface of the second through hole 331. That is, the first connector 32 and the inner conical surface of the second through hole 331 are tangentially fitted to achieve arc-shaped surface contact, which greatly increases the contact area and can evenly disperse the radial pressure generated by gas or liquid. The inner surface of the second section hole 133 is spirally connected to the outer surface of the second connector 33. The inner surface of the second section hole 133 is provided with a fourth thread 54, and the outer surface of the second connector 33 is provided with a fifth thread 55. The fourth thread 54 and the fifth thread 55 on the second connector 33 are spirally connected to achieve a good sealing effect.

[0036] The fourth through hole 333 is recessed inward from the top surface of the second connector 33. The inner surface of the fourth through hole 333 is provided with a sixth thread 56. The sixth thread 56 is spirally connected to the second thread 52 to achieve a good sealing effect and a fixing effect.

[0037] Among them, a first sealing ring 41 is provided between the bottom surface of the high-pressure component product 4 and the fourth through hole 333. The first sealing ring 41 is made of rubber. Under the axial pressure generated by the spiral connection of the high-pressure component product 4, it will undergo uniform compression deformation, tightly fit the contact surface between the end of the high-pressure component product 4 and the fourth through hole 333, completely cover the gap, and achieve a gapless sealing effect.

[0038] See Figure 11 As shown, the high-pressure component product 4 is provided with a through slot 42, and the slot 42 is provided through the longitudinal direction to facilitate the flow of gas or liquid.

[0039] See Figure 13 As shown, when the high-pressure component product 4 is a single unit, the first connector 32 is placed into the middle section hole 132 of the connecting group hole 13 and is tangent to the inner conical surface of the middle section hole 132. Then, the second connector 33 is placed in and screwed into the second section hole 133 for fixation. The first rubber ring is placed into the fourth through hole 333, and the second thread 52 of the high-pressure component product 4 is screwed into the fourth through hole 333 for fixation. Then, the second rubber ring is placed into the opening 21 of the plug 2, and the first thread 51 of the high-pressure component product 4 is screwed into the opening 21 for fixation, thus forming an assembly.

[0040] See Figure 14 As shown, when there are two or more high-voltage components 4, the first connector 32 is inserted into the middle section hole 132 of the connecting group hole 13 and is tangent to the inner conical surface of the middle section hole 132. Then, the second connector 33 is inserted and screwed into the second section hole 133 for fixation. The first rubber ring is inserted into the fourth through hole 333. Multiple high-voltage components 4 are connected in series. Specifically, the first thread 51 of the lower high-voltage component 4 is connected to the second thread 52 of the upper high-voltage component 4. The second thread 52 of the lowermost high-voltage component 4 is screwed into the fourth through hole 333 for fixation. Then, the second rubber ring is inserted into the opening 21 of the plug 2. Then, the first thread 51 of the uppermost high-voltage component 4 is screwed into the opening 21 for fixation, forming multiple assemblies.

[0041] In the various spiral connection links mentioned above, a wrench can be used to assist in the operation to ensure the firmness of the spiral connection and improve the convenience of operation.

[0042] The structure in this application is simple and has high pumping efficiency, replacing the cumbersome steps of previous single pumping. It can be used as a batch pumping equipment for products. The application can achieve a high-pressure test of 100 MPa with good airtightness and sealing performance. Moreover, in this embodiment, the high-pressure component product 4 is a high-pressure connector, a high-pressure passage component, and a high-pressure valve, and the testing of the high-pressure connector, high-pressure passage component, and high-pressure valve can be carried out simultaneously, resulting in better compatibility.

[0043] It should also be noted that in this embodiment, when there are fewer than 15 high-pressure components 4 that need to be pumped, the remaining connection holes 13 can be sealed with screws, and pumping operation can still be achieved.

[0044] See Figures 15-18As shown, in other embodiments, in order to adapt to high-voltage components 4 of other shapes, the connector 3 still includes a first connector 32 and a second connector 33. The first connector 32 has the same shape and structure as the first connector 32 in the above embodiments. The second connector 33 has a different shape and structure than the second connector 33 in the above embodiments. The bottom of the second connector 33 is provided with a fifth through hole 61, and the top of the second connector 33 is provided with a sixth through hole 62. The fifth through hole 61 and the sixth through hole 62 are connected. The outer peripheral surface of the first connector 32 also abuts against the inner peripheral surface of the fifth through hole 61. In this embodiment, the high-voltage component 4 has an L-shaped structure and is a high-voltage pipe. The outer peripheral surface of the high-voltage component 4 abuts against the inner peripheral surface of the sixth through hole 62. In addition, in order to adapt to the high-voltage component 4, the plug 2 is also provided with a relief groove to avoid the high-voltage component 4.

[0045] This utility model also discloses a pumping method for a pumping fixture, including the following steps: S1, inserting the first connector 32 into the middle section hole 132 of the connecting group hole 13, and then inserting the second connector 33, so that the second connector 33 is spirally connected to the second section hole 133; S2, placing the first sealing ring 41 in the fourth through hole 333; when there is one high-pressure component product 4, spirally connecting the bottom end of the high-pressure component product 4 to the fourth through hole 333 of the second connector 33; when there are at least two high-pressure component products 4... S1. Connect the high-pressure component product 4 in series with a spiral connection, and then connect the bottom end of the high-pressure component product 4 located below to the fourth through hole 333 of the second connector 33 with a spiral connection; S2. Place the second sealing ring 22 in the opening 21, and connect the opening 21 to the top end of the high-pressure component product 4 with a spiral connection; S3. Before the pump pressure test, seal the deep hole 111 with fastener 1111, and introduce air pressure or water pressure into the pipe interface 14 to test the pump pressure; after the pump pressure test, remove the fastener 1111 to discharge the gas or liquid.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pumping fixture for pumping high-pressure components (4), characterized in that, It includes a tooling body (1), a plug (2), and a connector (3), wherein, The tooling body (1) has multiple first flow channels (11) distributed along a first direction and multiple second flow channels (12) distributed along a second direction inside. The first flow channels (11) and the second flow channels (12) are intersected. The top surface of the tooling body (1) has multiple connecting holes (13) that communicate with the first flow channels (11) and the second flow channels (12). The tooling body (1) has a pipe interface (14) for air or water intake on one side surface. The pipe interface (14) communicates with one of the first flow channels (11) or with one of the second flow channels (12). One end of the connector (3) is sealed to the connecting hole (13), and the other end is sealed to one end of the high-pressure component (4). The connector (3) has a through hole (31) so that gas or liquid can enter the high-pressure component (4) through the through hole (31). The plug (2) is located at the other end of the high-pressure component product (4), and the plug (2) is sealed to the high-pressure component product (4).

2. The pump pressure fixture according to claim 1, characterized in that, The connecting hole (13) includes a first section hole (131), a middle section hole (132), and a second section hole (133) arranged longitudinally in sequence, wherein, The first section hole (131) has a tubular structure, and the bottom surface of the first section hole (131) is connected to the first flow channel (11) and the second flow channel (12); The intermediate section hole (132) has a frustum-shaped structure. The cross-sectional area of ​​the top surface of the intermediate section hole (132) is larger than the cross-sectional area of ​​the bottom surface of the intermediate section hole (132). The bottom surface of the intermediate section hole (132) is connected to the top surface of the first section hole (131). The second section hole (133) has a tubular structure. The cross-sectional area of ​​the second section hole (133) is the same as the top cross-sectional area of ​​the middle section hole (132). The bottom surface of the second section hole (133) is connected to the top surface of the middle section hole (132).

3. The pump pressure fixture according to claim 2, characterized in that, The connector (3) includes a first connector (32) and a second connector (33), wherein, The first connector (32) is elliptical in shape. The first connector (32) has a through hole (321) that is connected to the first section hole (131). The outer peripheral surface of the first connector (32) abuts against the inner peripheral surface of the middle section hole (132). The second connector (33) has a second through hole (331) at its bottom end. The second through hole (331) has a frustum-shaped structure. The bottom cross-sectional area of ​​the second through hole (331) is larger than the top cross-sectional area of ​​the second through hole (331). The outer peripheral surface of the first connector (32) also abuts against the inner peripheral surface of the second through hole (331). The inner surface of the second section hole (133) is spirally connected to the outer surface of the second connector (33).

4. The pump pressure fixture according to claim 3, characterized in that, The second connector (33) is also provided with a third through hole (332) and a fourth through hole (333). The second through hole (331), the third through hole (332) and the fourth through hole (333) are connected in sequence. The fourth through hole (333) is formed by recessing inward from the top surface of the second connector (33).

5. A pump pressure fixture according to claim 1, characterized in that, The high-voltage component product (4) is a single high-voltage component product (4) or at least two high-voltage component products (4) connected in series.

6. A pump pressure fixture according to claim 4, characterized in that, A first sealing ring (41) is provided between the high-pressure component product (4) and the bottom surface of the fourth through hole (333).

7. A pump pressure fixture according to claim 1, characterized in that, The bottom end of the plug (2) has an opening (21), the inner surface of the opening (21) is spirally connected to the outer surface of the high-pressure component product (4), and a second sealing ring (22) is provided between the high-pressure component product (4) and the top surface of the opening (21).

8. A pump pressure fixture according to claim 1, characterized in that, One end of the first flow channel (11) and one end of the second flow channel (12) extend outward to form a deep hole (111) communicating with the outside world. The deep hole (111) is used for venting or draining air.

9. A pump pressure fixture according to claim 8, characterized in that, A fastener (1111) is detachably provided at the deep hole (111).

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