Water pressure test tooling
By designing a water pressure testing fixture, the hidden defects of the guide sleeve under high pressure environment were solved, enabling reliability testing of the guide sleeve, ensuring its performance and safety, and avoiding potential accidents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN XINFENG NEW MATERIALS CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-30
AI Technical Summary
Guide sleeves may have hidden defects in high-pressure and high-precision scenarios, such as casting porosity, welding cracks, and uneven heat treatment. Failure to detect these defects in time may lead to safety accidents and property damage.
Design a water pressure testing fixture, including a base and a cover plate, connected by bolts and nuts, combined with a sealing ring and an explosion-proof cover, to achieve detachable sealing and pressure testing of the guide sleeve, and detect leakage or abnormal deformation.
Ensure the performance and safety of the guide sleeve in practical applications, avoid potential hazards, and guarantee safe use.
Smart Images

Figure CN224435995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of guide sleeves, and in particular to a water pressure testing fixture. Background Technology
[0002] As a key component in mechanical systems, guide sleeves perform guiding, sealing, and supporting functions in high-pressure, high-precision environments, demanding extremely high levels of sealing, strength, and durability. During mass production, guide sleeves inevitably develop hidden defects such as casting porosity, welding cracks, and uneven heat treatment. If these defects are not detected in time, they can cause property damage or even safety accidents in practical applications. Utility Model Content
[0003] The purpose of this utility model is to provide a water pressure testing fixture to alleviate the technical problem of safety hazards in the practical application of guide sleeves.
[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:
[0005] The water pressure testing fixture provided by this utility model includes: a base, which is used to seal with one end of the workpiece to be tested;
[0006] A cover plate is provided for sealing with the other end of the workpiece to be tested, and a through hole is provided thereon, the through hole being configured to communicate with the workpiece to be tested when the workpiece to be tested is connected between the base and the cover plate.
[0007] Furthermore, the base and the workpiece to be tested are detachably connected via a first fixing structure;
[0008] The cover plate and the workpiece to be tested are detachably connected via a second fixing structure.
[0009] Furthermore, around the axis of the base, the base is provided with a plurality of evenly spaced first through holes;
[0010] The first fixing structure includes:
[0011] The first bolt corresponds one-to-one with the first through hole and is inserted through the first through hole;
[0012] The first nut is threadedly connected to the first bolt.
[0013] Furthermore, around the axis of the cover plate, the cover plate is provided with a plurality of evenly spaced second perforations;
[0014] The second fixing structure includes:
[0015] The second bolt corresponds one-to-one with the second through hole and is inserted through the second through hole;
[0016] The second nut is threaded onto the second bolt.
[0017] Furthermore, the water pressure testing fixture also includes a first sealing ring, which is configured to abut against the surface of the base and the end face of the workpiece to be tested respectively under water pressure testing conditions.
[0018] Furthermore, a first groove is formed on the surface of the base;
[0019] The first sealing ring contacts the bottom groove surface of the first groove.
[0020] Furthermore, the water pressure testing fixture also includes a second sealing ring, which is configured to abut against the surface of the cover plate and the end face of the workpiece to be tested respectively under water pressure testing conditions.
[0021] Furthermore, a second groove is formed on the surface of the cover plate;
[0022] The second sealing ring contacts the bottom groove surface of the second groove.
[0023] Furthermore, the water pressure testing fixture also includes a bubble level, which is disposed on the cover plate.
[0024] Furthermore, the water pressure testing fixture also includes an explosion-proof cover, which is configured to be fitted onto the base and the cover plate during water pressure testing.
[0025] In summary, the technical effects achieved by the water pressure testing fixture provided by this utility model are as follows:
[0026] The hydrostatic testing fixture includes a base for sealing one end of the workpiece to be tested; and a cover plate for sealing the other end of the workpiece to be tested, and the cover plate is provided with a through hole configured to communicate with the workpiece to be tested when the workpiece to be tested is connected between the base and the cover plate.
[0027] The base and cover plate work together with the workpiece to be tested to seal both ends of the workpiece, ensuring that the medium only acts on the tested part of the workpiece during testing. By designing through holes on the cover plate, water medium can enter the cavity formed by the base, cover plate and workpiece to be tested. By applying pressure, it is possible to detect whether there is leakage or abnormal deformation in the workpiece to be tested.
[0028] It can be seen that this water pressure testing fixture can perform water pressure testing on the workpiece to be tested, such as the guide sleeve, thus ensuring the performance and safety of the guide sleeve and enabling its safe use in practical applications. Attached Figure Description
[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0030] Figure 1 A cross-sectional view of the water pressure testing fixture provided in an embodiment of this utility model;
[0031] Figure 2 for Figure 1 A schematic diagram of the central base;
[0032] Figure 3 for Figure 1 A schematic diagram of one embodiment of the middle cover plate;
[0033] Figure 4 for Figure 1 A schematic diagram of another embodiment of the middle cover plate.
[0034] Icons: 1-Base; 11-First perforation; 12-First groove;
[0035] 2-Cover plate; 21-Through hole; 22-Second perforation; 23-Second groove; 24-Receiving groove;
[0036] 3-Workpiece to be tested; 4-First sealing ring; 5-Second sealing ring. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0039] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0040] During the mass production process, guide sleeves will inevitably have hidden defects, such as casting porosity, welding cracks, and uneven heat treatment. If these hidden defects are not detected in time, they will cause property damage or even safety accidents in actual use.
[0041] In view of this, the present invention provides a water pressure testing fixture, including a base 1, which is used to seal with one end of the workpiece 3 to be tested; and a cover plate 2, which is used to seal with the other end of the workpiece 3 to be tested, and is provided with a through hole 21, which is configured to communicate with the workpiece 3 to be tested when the workpiece 3 to be tested is connected between the base 1 and the cover plate 2.
[0042] The base 1 and cover plate 2 cooperate with the workpiece 3 to seal both ends of the workpiece 3, ensuring that the medium only acts on the tested part of the workpiece 3 during the test; by designing through holes 21 on the cover plate 2, water medium can enter the cavity formed by the base 1, cover plate 2 and workpiece 3, and by applying pressure, it can detect whether the workpiece 3 has leakage or abnormal deformation.
[0043] It can be seen that this water pressure testing fixture can perform water pressure testing on the workpiece 3 to be tested, such as the guide sleeve. In this way, the performance and safety of the guide sleeve can be guaranteed, so that it can be used safely in practical applications.
[0044] The following combination Figures 1 to 4 The structure and shape of the water pressure testing fixture provided in this embodiment are described in detail below:
[0045] In one embodiment of this application, reference is made to Figure 1 The base 1 and the workpiece 3 to be tested are detachably connected via a first fixing structure, and the cover plate 2 and the workpiece 3 to be tested are detachably connected via a second fixing structure. That is, the base 1 and the cover plate 2 are detachably connected to both ends of the workpiece 3 to be tested, respectively. In other embodiments, the base 1 and the cover plate 2 can also be directly detachably connected, with the base 1 and the cover plate 2 working together to clamp the workpiece 3 to be tested between them.
[0046] Regarding the first and second fixed structures, specifically:
[0047] refer to Figure 1 and Figure 2Around the axis of the base 1, the base 1 is provided with a plurality of evenly spaced first through holes 11, and the first through holes 11 correspond one-to-one with the through holes on the left end of the guide sleeve; the first fixing structure includes: a first bolt, the first bolt corresponds one-to-one with the first through holes 11 and is inserted through the first through holes 11; and a first nut, the first nut being threadedly connected to the first bolt.
[0048] In the above design, the base 1 and guide sleeve are bolted together using the first bolt and the first nut, along with the through holes on the base 1 and guide sleeve respectively. If leakage occurs at the connection between the base 1 and guide sleeve during the water pressure test, the first nut can be tightened again.
[0049] refer to Figure 1 , Figure 3 and Figure 4 Around the axis of the cover plate 2, the cover plate 2 is provided with a plurality of evenly spaced second through holes 22, and the second through holes 22 correspond one-to-one with the through holes on the right end of the guide sleeve; the second fixing structure includes: a second bolt, the second bolt corresponds one-to-one with the second through holes 22 and is inserted through the second through holes 22; and a second nut, the second nut is threadedly connected to the second bolt.
[0050] In the above design, the cover plate 2 and the guide sleeve are bolted together using the second bolt and the second nut, along with the through holes on the cover plate 2 and the guide sleeve. If leakage occurs at the connection between the cover plate 2 and the guide sleeve during the water pressure test, the second nut can be tightened again.
[0051] In this embodiment, reference Figure 1 The water pressure testing fixture also includes a first sealing ring 4, which abuts against the surface of the base 1 and the left end face of the workpiece 3 to be tested. Through the first sealing ring 4, the base 1 and the end face of the workpiece 3 to be tested are sealed, and the base 1 seals the left end of the workpiece 3 to be tested. In addition, the first sealing ring 4 can be an O-ring or a rubber gasket.
[0052] More preferably, refer to Figure 2 The base 1 has a recessed first groove 12; the first sealing ring 4 contacts the bottom groove surface of the first groove 12. By setting the first groove 12, the installation position of the sealing ring is clearly defined, ensuring an effective seal between the base 1 and the workpiece 3 to be tested.
[0053] In this embodiment, reference Figure 1 The water pressure testing fixture also includes a second sealing ring 5, which abuts against the surface of the cover plate 2 and the right end face of the workpiece 3 to be tested. Through the second sealing ring 5, the cover plate 2 and the end face of the workpiece 3 to be tested are sealed, and the cover plate 2 seals the right end of the workpiece 3 to be tested. In addition, here, like the first sealing ring 4, the second sealing ring 5 can also be an O-ring, or the second sealing ring 5 can be replaced with a rubber gasket.
[0054] More preferably, refer to Figure 3 The cover plate 2 has a recessed second groove 23; the second sealing ring 5 contacts the bottom groove surface of the second groove 23. By setting the second groove 23, the installation position of the sealing ring is clearly defined, ensuring an effective seal between the cover plate 2 and the workpiece 3 to be tested.
[0055] Optionally, refer to Figure 4 The cover plate 2 is provided with a receiving groove 24, and a bubble level is installed in the receiving groove 24. By using bubble water evaluation, the levelness of the cover plate 2 installation can be detected to ensure the uniformity of the pressure applied by the cover plate 2 to the entire workpiece 3 under test.
[0056] Optionally, the hydrostatic testing fixture also includes an explosion-proof cover, which is configured to be fitted over the base 1 and the cover plate 2 during hydrostatic testing. This prevents splashing due to breakage of the guide sleeve during pressurization, ensuring the safety of surrounding personnel.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A water pressure test tool, characterized by, include: The base (1) is used to seal with one end of the workpiece (3) to be tested; Cover plate (2), which is used to seal with the other end of the workpiece (3) to be tested, and has a through hole (21) thereon, which is configured to communicate with the workpiece (3) to be tested when the workpiece (3) to be tested is connected between the base (1) and the cover plate (2).
2. The water pressure testing fixture according to claim 1, characterized in that, The base (1) and the workpiece (3) to be tested are detachably connected through the first fixing structure; The cover plate (2) and the workpiece (3) to be tested are detachably connected through a second fixing structure.
3. The water pressure testing fixture according to claim 2, characterized in that, Around the axis of the base (1), the base (1) is provided with a plurality of evenly spaced first through holes (11). The first fixing structure includes: The first bolt corresponds one-to-one with the first through hole (11) and is inserted through the first through hole (11). The first nut is threadedly connected to the first bolt.
4. The water pressure testing fixture according to claim 2, characterized in that, Around the axis of the cover plate (2), the cover plate (2) is provided with a plurality of evenly spaced second perforations (22). The second fixing structure includes: The second bolt corresponds one-to-one with the second through hole (22) and is inserted through the second through hole (22). The second nut is threaded onto the second bolt.
5. The water pressure testing fixture according to claim 1, characterized in that, The water pressure testing fixture also includes a first sealing ring (4), which is configured to abut against the surface of the base (1) and the end face of the workpiece (3) under water pressure testing conditions.
6. The water pressure testing fixture according to claim 5, characterized in that, The base (1) has a first groove (12) recessed on its surface; The first sealing ring (4) is in contact with the bottom groove surface of the first groove (12).
7. The water pressure testing fixture according to claim 1, characterized in that, The water pressure testing fixture also includes a second sealing ring (5), which is configured to abut against the surface of the cover plate (2) and the end face of the workpiece (3) under water pressure testing conditions.
8. The water pressure testing fixture according to claim 7, characterized in that, The cover plate (2) has a second groove (23) recessed on its surface; The second sealing ring (5) contacts the bottom groove surface of the second groove (23).
9. The water pressure testing fixture according to claim 1, characterized in that, The water pressure testing fixture also includes a bubble level, which is mounted on the cover plate (2).
10. The water pressure testing fixture according to claim 1, characterized in that, The water pressure testing fixture also includes an explosion-proof cover, which is configured to be fitted onto the base (1) and the cover plate (2) under water pressure testing conditions.