Base frame structure and high-pressure airtight test bench
By improving the base frame structure and table design, the problems of cluttered tabletops and large hand movement distances for testers in high-pressure airtightness testing have been solved, resulting in a clean tabletop, convenient operation, and reduced mental fatigue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG GREAT ELECTRIC CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-28
AI Technical Summary
When using existing high-pressure airtightness testing benches, the fixing of the test frame and the connection of the test fixtures result in a messy table surface, and the test personnel have to move their hands a long distance, which can easily cause nerve fatigue.
A base frame structure was designed, including a base plate, support columns, support frames, load-bearing frames, and universal self-locking wheels. The maintenance door is installed via hinges, and positioning plates and leveling supports are provided. The tabletop uses spliced snap-on plates and panels, and the wires are positioned in the receiving cavity through wire holes, which simplifies the fixing and movement of the test fixture.
This resulted in a clean work surface, reduced the distance the testers had to move their hands, decreased mental fatigue, and improved the convenience and safety of operation.
Smart Images

Figure CN224176022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airtightness testing platform technology, specifically to a base frame structure and a high-pressure airtightness testing platform. Background Technology
[0002] An airtightness test bench is a device used to test the sealing performance of products or components. It determines the presence of leaks by measuring parameters such as pressure changes and gas flow. A high-pressure airtightness test bench is specifically designed to test the sealing performance of products or components under high-pressure environments. Its test pressure is usually much higher than that of conventional airtightness tests. It is widely used in fields with extremely high requirements for pressure resistance and sealing performance, such as energy equipment, petrochemicals, aerospace, and high-pressure vessels. The base frame structure is one of the important components of a high-pressure airtightness test bench, mainly serving to bear and support the load. When using existing high-pressure airtightness test benches, the test frame needs to be fixed on the test bench first, and multiple test fixtures need to be fixed on the test frame. Each test fixture has an external wire, which not only makes the table surface of the high-pressure airtightness test bench messy, but also requires the tester to move their hands a long distance and lift them frequently, which can easily cause nervous fatigue. Therefore, a base frame structure and a high-pressure airtightness test bench are proposed. Utility Model Content
[0003] The purpose of this utility model is to solve the technical problem that requires fixing the test frame on the high-pressure airtightness test bench, fixing multiple test fixtures on the test frame, and connecting external wires to each test fixture. This not only makes the surface of the high-pressure airtightness test bench messy, but also causes the test personnel to move their hands a large distance and lift their hands frequently, which can easily cause nerve fatigue. This utility model provides a base frame structure and a high-pressure airtightness test bench.
[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0005] A frame structure, comprising:
[0006] The base plate has support columns at its four corners, and an I-shaped support frame is provided between two adjacent support columns. The base plate, the four support columns, and the four support frames enclose a receiving cavity, and a grid-shaped load-bearing frame is provided inside the receiving cavity. Universal self-locking wheels are provided at the four corners of the base plate.
[0007] Furthermore, both the support column and the support frame are equipped with access doors via hinges.
[0008] Furthermore, a reinforcing block with a triangular structure is provided between the support frame and the support column.
[0009] Furthermore, the cavity is provided with a positioning plate with an annular structure, and the support frame is fastened to the positioning plate and the two are fixed by bolts.
[0010] Furthermore, the base plate is provided with leveling support components of the same number as the universal self-locking wheels.
[0011] Furthermore, the leveling support includes a fixed frame mounted on the base plate, a leveling screw threaded through the fixed frame, and a support block in contact with the ground at the free end of the leveling screw.
[0012] The high-pressure airtightness test bench includes the aforementioned base frame structure and a table surface fastened to the support frame. The table surface includes multiple snap-on plates and multiple panels spliced into a rectangular structure. The panels are provided with wire holes and multiple positioning holes. The snap-on plates and panels are fixed to the support frame by bolts.
[0013] Furthermore, the support frame is constructed with multiple marking areas.
[0014] The beneficial effects of this utility model are as follows: This utility model is an improvement on the existing high-pressure airtightness test bench. When in use, the test fixture is fixed on the panel, and the wires connected to the test fixture pass through the wire hole and are located in the receiving cavity. This not only keeps the table surface clean, but also reduces the distance the tester's hands need to move, reduces lifting work, and reduces nerve fatigue. Therefore, it is more practical. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural view of the present invention;
[0016] Figure 2 This is a three-dimensional sectional view of the present invention;
[0017] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;
[0018] Figure 4 This is a three-dimensional sectional view of the present invention from another perspective;
[0019] Figure 5 This is a utility model Figure 4 Enlarged view of point B in the middle;
[0020] Figure 6 This is another perspective sectional view of this utility model;
[0021] Figure 7 This is a utility model Figure 6 A magnified view of point C in the middle.
[0022] Reference numerals: 1. Base plate; 2. Support column; 3. Support frame; 4. Receiving cavity; 5. Bearing frame; 6. Universal self-locking wheel; 7. Inspection door; 8. Reinforcing block; 9. Positioning plate; 10. Fixing frame; 11. Leveling screw; 12. Support block; 13. Buckle plate; 14. Panel; 15. Threading hole; 16. Positioning hole; 17. Labeling area. Detailed Implementation
[0023] 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.
[0024] like Figures 1-7 As shown, one embodiment of this utility model provides a base frame structure, comprising:
[0025] The base plate 1 is horizontal, and rectangular notches are constructed at each of the four corners of the base plate 1. Support columns 2 are set at each of the four corners of the base plate 1. The four support columns 2 are vertical and distributed in a rectangular array. The support columns 2 correspond to the rectangular notches. I-shaped support frames 3 are set between two adjacent support columns 2. The four support frames 3 are vertical and distributed in a rectangular array. The length of the support frames 3 distributed along the X-axis is greater than the length of the support frames 3 distributed along the Y-axis. The base plate 1, the four support columns 2, and the four support frames 3 enclose a receiving cavity 4. The base plate 1, the four support columns 2, and the four support frames 3 are fixedly connected. A grid-shaped bearing frame 5 is set in the receiving cavity 4. The bearing frame 5 is horizontal and is distributed vertically and alternately with the base plate 1. Universal self-locking wheels 6 are set at each of the four corners of the base plate 1. The universal self-locking wheels 6 are fixed to the bottom surface of the base plate 1 by bolts.
[0026] In use, four universal self-locking wheels 6 are fixed to the bottom surface of the base plate 1 with bolts. The base plate 1, four support columns 2 and four support frames 3 are fixedly connected. The base plate 1, four support columns 2 and four support frames 3 enclose a cavity 4. The base plate 1 is horizontal, and the support columns 2 and support frames 3 are vertical, so that the bearing frame 5 is horizontal and fixed in the cavity 4 to form a base frame structure. The base frame structure plays a role in bearing and supporting the high-pressure airtightness test bench. The cooperation of the four universal self-locking wheels 6 makes the base frame structure easy to move.
[0027] like Figures 1-4 As shown, a further technical solution of this utility model is disclosed. Both the support column 2 and the support frame 3 are equipped with inspection doors 7 by hinges. The inspection doors 7 are vertical. By opening or closing the inspection doors 7, the receiving cavity 4 can be in an unobstructed or closed state.
[0028] Referring to the above, during use, multiple inspection doors 7 are installed on the support column 2 and support frame 3 via hinges. When no operation is required in the receiving cavity 4, all multiple inspection doors 7 are closed, making the high-pressure airtightness test bench neater. Conversely, when operation is required in the receiving cavity 4, the inspection doors 7 can be opened.
[0029] like Figure 4 As shown, a further technical solution of this utility model is disclosed, wherein a reinforcing block 8 with a triangular structure is provided between the support frame 3 and the support column 2, and the reinforcing block 8 is vertical and fixed between the support frame 3 and the support column 2.
[0030] Referring to the above, during use, the reinforcing block 8 is fixed between the support frame 3 and the support column 2. The triangular structure of the reinforcing block 8 can improve the connection stability between the support frame 3 and the support column 2, thereby improving the load-bearing and support strength of the high-pressure airtightness test bench.
[0031] like Figure 5 As shown, a further technical solution of this utility model is disclosed. A positioning plate 9 with an annular structure is provided in the receiving cavity 4. The positioning plate 9 is horizontal and fixed in the receiving cavity 4. The positioning plate 9 and four support frames 3 are fixedly connected. The bearing frame 5 is fastened to the positioning plate 9 and the two are fixed by bolts. The bearing frame 5 has a through hole and the positioning plate 9 has a threaded hole. The free end of the bolt passes through the through hole and is threadedly engaged with the threaded hole to fix the bearing frame 5 and the positioning plate 9.
[0032] Referring to the above, when using it, the positioning plate 9 is horizontal and fixed in the receiving cavity 4. The positioning plate 9 and the four support frames 3 are fixedly connected. Then, the bearing frame 5 is fastened to the positioning plate 9. The bearing frame 5 and the positioning plate 9 are fixed with bolts. The positioning plate 9 can not only realize the quick positioning of the bearing frame 5, but also bear and support the bearing frame 5.
[0033] like Figure 7 As shown, a further technical solution of this utility model is disclosed, wherein the base plate 1 is provided with leveling support components of the same quantity as the universal self-locking wheels 6;
[0034] Referring to the above, when in use, if the ground is flat, the leveling support can provide support and further improve the stability of the high-pressure airtightness test bench. Conversely, if the ground is uneven, the leveling support can level the ground and keep the high-pressure airtightness test bench in a stable state.
[0035] like Figure 7As shown, the specific structure of the leveling support of this utility model is disclosed. The leveling support includes a fixing frame 10 set on the base plate 1. The fixing frame 10 is fixed on the base plate 1. A leveling screw 11 is threaded through the fixing frame 10. The axis of the leveling screw 11 is vertical. A support block 12 is provided at the free end of the leveling screw 11 and contacts the ground. The support block 12 is fixed at the bottom end of the leveling screw 11.
[0036] Referring to the above, in the initial state, the leveling screw 11 is in the initial position, and the support block 12 is close to the fixed frame 10 and far from the ground, which does not affect the rotation of the universal self-locking wheel 6. In use, if the ground is flat, rotate the leveling screw 11 downward to the extreme position, driving the support block 12 away from the fixed frame 10 until the support block 12 contacts the ground. Repeat the operation until all four support blocks 12 are in contact with the ground, thus providing support. Conversely, if the ground is uneven, rotate the leveling screw 11 downward to the extreme position, driving the support block 12 away from the fixed frame 10 until the support block 12 contacts the ground, and the high-pressure airtightness test bench remains stable.
[0037] like Figures 1-5 As shown, in some embodiments, the high-pressure airtightness test bench includes the aforementioned base frame structure and a table surface fastened to the support frame 5. The table surface is horizontal and includes multiple snap-on plates 13 and multiple panel 14 spliced into a rectangular structure. The panel 14 has through holes 15 and multiple positioning holes 16. Both the through holes 15 and the positioning holes 16 are vertical. The multiple positioning holes 16 are evenly distributed. The snap-on plates 13 and the panel 14 are fixed to the support frame 5 by bolts. Both the snap-on plates 13 and the panel 14 have through holes. The support frame 5 has threaded holes. The free end of the bolt passes through the through hole and engages with the threaded hole to achieve fixation.
[0038] Referring to the above, during use, multiple buckle plates 13 and multiple panels 14 are fixed to the support frame 5 with bolts, so that the multiple buckle plates 13 and multiple panels 14 are spliced into a rectangular structure to form a table. During testing, the testing fixture is placed on the panel 14, and the positioning hole 16 facilitates the fixing of the testing fixture. Then, the wires connected to the testing fixture are passed through the wire hole 15 and located in the receiving cavity 4. This not only keeps the table clean, but also reduces the distance of hand movement for the tester by eliminating the testing frame, reducing the need for lifting, and reducing mental fatigue.
[0039] In summary, this utility model is an improvement on the existing high-pressure airtightness testing bench. When in use, the testing fixture is fixed on the panel 14, and the wires connected to the testing fixture pass through the wire hole 15 and are located in the receiving cavity 4. This not only keeps the table surface clean, but also reduces the distance the tester's hands need to move, reduces lifting work, and reduces mental fatigue. Therefore, it is more practical.
[0040] like Figure 1 As shown, in some embodiments, the support frame 3 is provided with multiple marking areas 17, which are used to mark uppercase letters or Arabic numerals.
[0041] Referring to the above, in actual use, Arabic numerals should be sequentially marked in the multiple marking areas 17 on the support frame 3 distributed along the X-axis, and uppercase letters should be sequentially marked in the multiple marking areas 17 on the support frame 3 distributed along the Y-axis, so that the table surface forms a coordinate system, which can reduce positioning, adjustment and position uncertainty, and make it more convenient to use.
[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A base frame structure, characterized in that, include: The base plate (1) has support columns (2) at each of its four corners. A support frame (3) with an I-shaped structure is provided between two adjacent support columns (2). The base plate (1), the four support columns (2) and the four support frames (3) enclose a cavity (4). A load-bearing frame (5) with a grid-like structure is provided inside the cavity (4). Universal self-locking wheels (6) are provided at each of the four corners of the base plate (1).
2. The base frame structure according to claim 1, characterized in that, Inspection doors (7) are installed on both the support column (2) and the support frame (3) via hinges.
3. The base frame structure according to claim 1, characterized in that, A reinforcing block (8) with a triangular structure is provided between the support frame (3) and the support column (2).
4. The base frame structure according to claim 1, characterized in that, The cavity (4) is provided with a positioning plate (9) with an annular structure, and the support frame (5) is fastened to the positioning plate (9) and the two are fixed by bolts.
5. The base frame structure according to claim 1, characterized in that, The base plate (1) is provided with leveling support components of the same number as the universal self-locking wheels (6).
6. The base frame structure according to claim 4, characterized in that, The leveling support includes a fixed frame (10) set on the base plate (1), a leveling screw (11) threaded through the fixed frame (10), and a support block (12) in contact with the ground at the free end of the leveling screw (11).
7. A high-pressure airtightness testing bench, comprising the base frame structure as described in any one of claims 1-6, characterized in that, It also includes a tabletop fastened to the support frame (5), the tabletop including multiple snap-on plates (13) and multiple panels (14) spliced into a rectangular structure, the panels (14) having wire holes (15) and multiple positioning holes (16), the snap-on plates (13) and the panels (14) being fixed to the support frame (5) by bolts.
8. The high-pressure airtightness testing bench according to claim 7, characterized in that, The support frame (3) has multiple marking areas (17).