A bracket water pressure test tool

Abstract

The utility model discloses a support hydraulic test fixture, which belongs to the technical field of test fixtures, and comprises a cover body, a cover plate, and a disc support seat arranged between the cover body and the cover plate, wherein a water cavity is concavely arranged in the upper end surface of the cover body, and a mounting groove is arranged at the position where the upper end surface contacts the disc support seat, and a sealing ring is arranged in the mounting groove; a limit block is arranged at the position of the upper end surface of the cover body close to the outer surface of the disc support seat, and a fixing piece is arranged on the outer side of the cover body located at the limit block, and the fixing piece is movably connected with the cover plate; a water inlet and an exhaust port are arranged on the bottom surface of the cover body in communication with the water cavity, and a pressure gauge is arranged at the exhaust port. The utility model has a simple structure, a small volume of hydraulic equipment, and can be tested anywhere, which solves the problem that the hydraulic pressure test fixture cannot be sealed under high water pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of test tools, in particular to a support water pressure test tool. Background Art

[0002] With the rapid development of aerospace technology, fuel engines have been widely used as power propulsion systems. Therefore, the bracket body, as a key component that bears the gas pressure, prevents the gas from directly scouring the aircraft, and provides support and power propulsion, has been widely used in various aerospace launchers or launch devices. Taking the launch tube bracket body as an example, in addition to the above functions, it must also have many composite functions such as light weight, high strength, heat resistance, scour resistance, and reusability. In order to ensure the use strength of the bracket, it is necessary to conduct a water pressure test on it. However, the existing bracket water pressure test tooling cannot achieve complete sealing between the product and the tooling when the water pressure is high, and the tooling is too large to be tested anywhere. Utility Model Content

[0003] The main purpose of the utility model is to solve the above-mentioned technical problems to a certain extent, and to provide a support water pressure test fixture, which solves the problem that the water pressure test fixture cannot be sealed under high water pressure.

[0004] The above-mentioned problem to be solved by the utility model is achieved through the following technical solutions:

[0005] A support water pressure test tool is proposed, comprising a cover body, a cover plate, and a disc support seat arranged between the cover body and the cover plate, wherein a water cavity is concavely provided in the upper end surface of the cover body, and a mounting groove is provided at the position where the upper end surface contacts the disc support seat, and a sealing ring is provided in the mounting groove; a limit block is provided at the position of the upper end surface of the cover body close to the outer surface of the disc support seat, and a fixing piece is provided on the cover body at the outer side of the limit block, and the fixing piece is movably connected with the cover plate, so that the disc support seat is pulled by the cover plate to press the sealing ring so that the water cavity is in a sealed state; a water inlet and an exhaust port are provided on the bottom surface of the cover body connected with the water cavity, and a pressure gauge is provided at the exhaust port.

[0006] In some embodiments, the cover body is provided with a first reinforcing rib at the bottom of the water cavity, and a reinforcing ring is provided at a position located on the top of the first reinforcing rib.

[0007] In some embodiments, a reinforcement seat is provided at a position of the cover body above the reinforcement ring, and an upper end surface of the reinforcement seat is flush with an upper end surface of the cover body.

[0008] In some embodiments, a second reinforcing rib is provided on the top of the cover plate.

[0009] In some embodiments, the second reinforcing rib is in a cross shape, and its end is flush with the outer surface of the cover plate.

[0010] In some embodiments, the cover plate is provided with a clearance groove at the protruding position of the disc holder.

[0011] In some embodiments, the limit blocks are provided in plurality and are distributed in an array with the center line of the cover body as the axis.

[0012] In some embodiments, the fixing members are provided in plurality and are distributed in an array with the center line of the cover body as the axis.

[0013] The above technical solution provided by this application has the following advantages compared with the prior art:

[0014] The utility model provides a water cavity in the cover body, and the disc holder to be tested covers the opening of the water cavity of the cover body. By tightening the fixing piece, the cover plate presses the disc holder, and the disc holder presses the sealing ring on the cover body, so that the water cavity is in a sealed state, which is used to solve the problem that the water pressure test tool cannot be sealed under the condition of large water pressure; at the same time, water is injected into the water cavity from the water inlet on the bottom surface of the cover body to increase the pressure, and the pressure in the water cavity is observed by a pressure gauge arranged at the exhaust port, so as to ensure that the injected water pressure meets the test requirements for the disc holder. The utility model has a simple structure, and the water pressure equipment is small in size, so that the test can be carried out anywhere. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 This is a structural diagram of the support water pressure test tooling of the utility model;

[0017] Figure 2 It is a cross-sectional view of the support water pressure test fixture of the utility model;

[0018] Figure 3 It is a structural diagram of the cover body of the utility model.

[0019] Description of Figure Numbers:

[0020] 1-hood; 2-cover plate; 3-disc support; 4-water cavity; 5-installation groove; 6-sealing ring; 7-limiting block; 8-fixing piece; 9-water inlet; 10-exhaust port; 11-first reinforcing rib; 12-reinforcement ring; 13-reinforcement seat; 14-second reinforcing rib; 15-air avoidance groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, 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 limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. 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 combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] like Figure 1-3As shown, the utility model proposes a support water pressure test fixture, including a cover body 1, a cover plate 2, and a disc support seat 3 arranged between the cover body 1 and the cover plate 2. The upper end surface of the cover body 1 is concavely provided with a water cavity 4, and a mounting groove 5 is provided at a position where the upper end surface contacts the disc support seat 3, and a sealing ring 6 is provided in the mounting groove 5; a limit block 7 is provided at a position of the upper end surface of the cover body 1 close to the outer surface of the disc support seat 3, wherein the limit blocks 7 are provided in plurality and are distributed in an array with the center line of the cover body 1 as the axis. When the disc support seat 3 is squeezed and moved, the limit blocks 7 are arranged to abut against the limit blocks 7, thereby preventing the disc support seat 3 from moving too far and affecting the sealing effect; the cover body 1 is located at the limit A fixing piece 8 is provided on the outer side of the positioning block 7. The fixing piece 8 is a screw. One end of the fixing piece 8 passing through the cover body 1 is threadedly connected to the cover plate 2. As the fixing piece 8 is tightened, the cover plate 2 moves toward the cover body 1, thereby pressing the disc holder 3, and the disc holder 3 presses the sealing ring 6 and the cover body 1. A plurality of fixing pieces 8 are provided and are distributed in an array with the center line of the cover body 1 as the axis. The plurality of fixing pieces 8 are provided to ensure the pressing effect on the disc holder 3, so that the disc holder 3 presses the sealing ring 6 and the cover body 1, and the sealing effect in the water cavity 4 of the cover body 1 is ensured; the bottom surface of the cover body 1 is connected to the water cavity 4 and is provided with a water inlet 9 and an exhaust port 10, and a pressure gauge is provided at the exhaust port 10.

[0025] In this embodiment, a water cavity 4 is arranged in the cover body 1, and the disc holder 3 to be tested covers the opening of the water cavity 4 of the cover body 1. By tightening the fixing piece 8, the cover plate 2 is pressed against the disc holder 3, and the disc holder 3 is pressed against the sealing ring 6 on the cover body 1, so that the water cavity 4 is in a sealed state, which is used to solve the problem that the water pressure test tool cannot be sealed when the water pressure is relatively high; at the same time, water is injected into the water cavity 4 from the water inlet 9 on the bottom surface of the cover body 1 to increase the pressure, and the pressure in the water cavity 4 is observed by a pressure gauge arranged at the exhaust port 10, so as to ensure that the injected water pressure meets the test requirements for the disc holder 3. It has a simple structure, a small size of the water pressure equipment, and can be tested anywhere.

[0026] Further, such as Figure 3 As shown, in order to improve the use strength of the cover body 1, the cover body 1 is provided with a first reinforcing rib 11 at the bottom of the water cavity 4, and a reinforcing ring 12 is provided at a position located at the top of the first reinforcing rib 11, and a reinforcing seat 13 is provided at a position of the cover body 1 above the reinforcing ring 12, and the upper end surface of the reinforcing seat 13 is flush with the upper end surface of the cover body 1; when the disc support seat 3 is pressed against the cover body 1, the lower end surface of the disc support seat 3 will be against the upper end surface of the reinforcing seat 13, so that the reinforcing seat 13 can improve the supporting force of the disc support seat 3,

[0027] A second reinforcing rib 14 is provided on the top of the cover plate 2, wherein the second reinforcing rib 14 includes but is not limited to a cross-shaped structure, and its end is flush with the outer surface of the cover plate 2. The second reinforcing rib 14 is used to improve the overall strength of the cover plate 2 to avoid deformation caused by water pressure. At the same time, an air avoidance groove 15 is provided at the raised position of the cover plate 2 on the disc holder 3 to avoid interference with the tooling.

[0028] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A bracket water pressure test tool, characterized in that: It comprises a cover body, a cover plate, and a disc support seat arranged between the cover body and the cover plate, wherein a water cavity is concavely arranged in the upper end surface of the cover body, and a mounting groove is arranged at the position where the upper end surface contacts the disc support seat, and a sealing ring is arranged in the mounting groove; A limit block is provided on the upper end surface of the cover body near the outer surface of the disc holder, and a fixing piece is provided on the cover body outside the limit block, and the fixing piece is movably connected with the cover plate, so that the disc holder is pulled by the cover plate to press the sealing ring so that the water cavity is in a sealed state; The bottom surface of the cover body is connected with the water cavity and is provided with a water inlet and an exhaust port, and a pressure gauge is provided at the exhaust port.

2. The bracket water pressure test fixture according to claim 1, characterized in that: The cover body is provided with a first reinforcing rib at the bottom of the water cavity, and a reinforcing ring is provided at a position located on the top of the first reinforcing rib.

3. The bracket water pressure test fixture according to claim 2, characterized in that: A reinforcement seat is provided at a position of the cover body above the reinforcement ring, and an upper end surface of the reinforcement seat is flush with an upper end surface of the cover body.

4. The bracket water pressure test fixture according to claim 1, characterized in that: A second reinforcing rib is provided on the top of the cover plate.

5. The bracket water pressure test fixture according to claim 4, characterized in that: The second reinforcing rib is in a cross shape, and an end portion thereof is flush with the outer surface of the cover plate.

6. The bracket water pressure test tool according to claim 1, characterized in that: The cover plate is provided with a clearance groove at a position where the disc support seat is protruded.

7. The bracket water pressure test tool according to claim 1, characterized in that: The limit blocks are provided in plurality and are distributed in an array with the center line of the cover body as the axis.

8. The bracket water pressure test tool according to claim 1, characterized in that: The fixing members are provided in plurality and are distributed in an array with the center line of the cover body as the axis.

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