CN213091072U - Air tightness testing mechanism - Google Patents
Air tightness testing mechanism Download PDFInfo
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- CN213091072U CN213091072U CN202021242952.1U CN202021242952U CN213091072U CN 213091072 U CN213091072 U CN 213091072U CN 202021242952 U CN202021242952 U CN 202021242952U CN 213091072 U CN213091072 U CN 213091072U
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Abstract
The utility model discloses an air tightness test mechanism, including the operation microscope carrier, install in the test subassembly of operation microscope carrier upper surface and be located the material loading seat of test subassembly one side, be located the unloading box of test subassembly opposite side and install in the fortune material subassembly of operation microscope carrier upper surface, the material loading seat further includes the base, install in the material loading cylinder of base one end and the movable block of being connected with the piston rod of material loading cylinder, the movable block upper surface is opened has a recess that supplies to place the test product that awaits measuring, and the both sides of this movable block are fixed with a baffle respectively, two the baffle is located the both ends of movable block respectively and overlaps at the movable block middle part, material loading seat one side still has a feed mechanism. The utility model discloses a still can realize automatic feeding to the automatic test of spare part gas tightness, further improve the efficiency and the degree of automation of test.
Description
Technical Field
The utility model relates to an air tightness test mechanism belongs to automobile parts test technical field.
Background
In the field of processing and manufacturing of automobile parts, valve parts are one of important components, and the sealing performance between inner cavities of the valve parts becomes an important index for detecting whether the valve parts are qualified or not. The traditional method for detecting the sealing performance of the parts is carried out by adopting a water immersion or oil immersion visual bubble method, the method has the advantages of simple required equipment, convenience in operation and visual detection result, however, the detection accuracy is poor, the detection time of a single part is long, the detection efficiency is low, the influence of human factors is large, and automatic quantitative leak detection cannot be realized; meanwhile, the parts are soaked in water or oil, so that the parts are wet and rusty, a lot of bad impurities are attached to the surfaces of the parts or in cavities, and complex later-stage cleaning of surface water or oil is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air tightness test mechanism, this air tightness test mechanism have realized still can realizing automatic feeding to the automatic test of spare part gas tightness, have further improved the efficiency and the degree of automation of test.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a gas tightness testing mechanism comprises an operation carrying platform, a testing assembly arranged on the upper surface of the operation carrying platform, a feeding base positioned on one side of the testing assembly, a discharging box positioned on the other side of the testing assembly and a material conveying assembly arranged on the upper surface of the operation carrying platform;
the feeding seat further comprises a base, a feeding cylinder arranged at one end of the base and a movable block connected with a piston rod of the feeding cylinder, wherein a groove for placing a product to be tested is formed in the upper surface of the movable block, two sides of the movable block are respectively and fixedly provided with a baffle plate, the two baffle plates are respectively positioned at two ends of the movable block and are overlapped in the middle of the movable block, a feeding mechanism is further arranged on one side of the feeding seat, when the movable block is pushed out by the feeding cylinder, the groove in the movable block is communicated with the feeding mechanism and used for receiving the product to be tested from the feeding mechanism, and when the movable block is pulled back by the feeding cylinder, the groove embedded with the product to be tested is positioned between the two baffle plates;
the testing assembly further comprises an upper substrate, a lower substrate, a left side plate, a right side plate, a pressure head and a testing seat, wherein the left side plate and the right side plate are connected between the upper substrate and the lower substrate at intervals;
a lower pressing cylinder is arranged on the upper substrate, a piston rod of the lower pressing cylinder penetrates through the upper substrate downwards and is connected with the pressing head to drive the pressing head to move up and down, a supporting plate is arranged above the lower substrate, the testing seat is positioned above the supporting plate and is movably connected with the supporting plate through at least two guide pillars, the upper end of each guide pillar is fixedly connected with the testing seat, and the lower end of each guide pillar penetrates through the supporting plate and is movably connected with the supporting plate;
the test seat further comprises a shell connected with the guide pillar and a core embedded in the shell and used for placing a product to be tested, wherein a limiting groove is formed in the upper surface of the core, the lower end of the product to be tested is embedded in the limiting groove, and the upper surface of the product to be tested extends out of the upper surface of the core;
a supporting column is arranged in the core body and is positioned right below a product to be tested, a through hole is formed in the center of the supporting column, the upper end of a top rod is embedded into the through hole of the supporting column from bottom to top, a ball body in contact with the top surface of the top rod is embedded into the upper portion of the through hole of the supporting column, and the upper portion of the ball body is embedded into the central through hole in the product to be tested;
the upper surface of the supporting plate is provided with a supporting seat, a pressure rod is connected to the supporting seat and is positioned under the test seat, a spring is sleeved at the upper end of the pressure rod, the lower surface of the shell of the test seat is provided with a through hole for embedding the lower end of the ejector rod, the upper end of the spring is embedded into the through hole in the shell and sleeved on the ejector rod, when the spring is in a non-test state, the spring is in a natural relaxation state, and when the spring is in a test state, two ends of the spring are in a contraction state under the extrusion of the ejector rod and the pressure rod;
the edge of pressure head has a bellied bulge loop portion down, is provided with a sealing washer directly over this pressure head's the lower surface and being located the core, the casing upper surface of test seat is opened has a concave part that supplies bulge loop portion embedding.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, a guide plate is fixed on the upper surface of the base, an upward protruding strip portion is arranged at the edges of two sides of the guide plate, a strip-shaped protruding portion extending outward is respectively arranged on the lower surface of each baffle, the outer side of each strip-shaped protruding portion is fixedly connected with the protruding strip portion, so that two guide grooves are formed between the guide plate and the two baffles, strip-shaped sliding block portions extending outward are respectively arranged on two sides of the lower portion of the movable block, and the two strip-shaped sliding block portions are respectively embedded into the two guide grooves.
2. In the above scheme, the support plate is installed on the lower substrate through four support columns.
3. In the scheme, the lower surface of the pressure head is provided with an annular groove for embedding the sealing ring.
4. In the scheme, the pressure head is directly connected with the piston rod of the downward pressing cylinder through an adapter plate, two ends of the adapter plate are respectively provided with a guide column, the lower end of the guide column is fixedly connected with the adapter plate, and the upper end of the guide column penetrates through the upper base plate and is movably connected with the upper base plate through a bearing seat.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the utility model discloses gas tightness accredited testing organization, it has realized the automatic test to the spare part gas tightness through the use scene of automatic simulation part, when saving manpower, improving production efficiency, has improved the measuring accuracy greatly; in addition, its material loading seat one side still has a feed mechanism, and when the movable block was released to the material loading cylinder, recess and feed mechanism intercommunication on the movable block for receive the product that awaits measuring that comes from feed mechanism, when the movable block was pulled back to the material loading cylinder, the recess that is embedded to have the product that awaits measuring was located between two baffles, the setting of material loading seat, cooperation arm can realize automatic feeding, has further improved the efficiency and the degree of automation of test.
Drawings
FIG. 1 is a schematic structural view of the air tightness testing mechanism of the present invention;
FIG. 2 is a schematic structural view of a testing tool in the air tightness testing mechanism of the present invention;
FIG. 3 is a bottom view of the testing tool in the air tightness testing mechanism of the present invention;
FIG. 4 is a schematic view of a partial structure of a test fixture in the air tightness test mechanism of the present invention;
FIG. 5 is a sectional view of a partial structure of a testing tool in the air tightness testing mechanism of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a schematic view of a partial structure of a charging seat in the air tightness testing mechanism of the present invention;
figure 8 is the utility model discloses the partial structure cross-sectional view of material loading seat in the gas tightness accredited testing organization.
7-in the above figures: 1. an upper substrate; 2. a lower substrate; 3. a left side plate; 4. a right side plate; 5. pressing down the air cylinder; 6. A pressure head; 601. a convex ring part; 602. a seal ring; 7. a support plate; 8. a test seat; 801. a housing; 802. a core body; 803. a limiting groove; 804. a groove part; 9. a guide post; 10. a product to be tested; 11. a support pillar; 12. a sphere; 13. a top rod; 14. a supporting seat; 15. a spring; 16. a pressure lever; 23. an operation carrying platform; 24. testing the component; 25. a feeding seat; 26. discharging the material box; 27. a material conveying assembly; 28. a feeding mechanism; 31. a base; 32. a feeding cylinder; 33. a movable block; 331. a groove; 332. a bar-shaped slider portion; 34. a baffle plate; 341. a bar-shaped protrusion; 35. a guide plate; 351. and a raised strip portion.
Detailed Description
Example 1: a gas tightness test mechanism comprises an operation platform 23, a test assembly 24 arranged on the upper surface of the operation platform 23, a feeding base 25 positioned on one side of the test assembly 24, a blanking box 26 positioned on the other side of the test assembly 24 and a material conveying assembly 27 arranged on the upper surface of the operation platform 23;
the feeding seat 25 further comprises a base 31, a feeding cylinder 32 installed at one end of the base 31 and a movable block 33 connected with a piston rod of the feeding cylinder 32, wherein a groove 331 for placing a product to be tested 10 is formed in the upper surface of the movable block 33, a baffle 34 is fixed on each of two sides of the movable block 33, the two baffles 34 are respectively located at two ends of the movable block 33 and overlapped in the middle of the movable block 33, a feeding mechanism 28 is further arranged on one side of the feeding seat 25, when the movable block 33 is pushed out by the feeding cylinder 32, the groove 331 in the movable block 33 is communicated with the feeding mechanism 28 and used for receiving the product to be tested 10 from the feeding mechanism 28, and when the movable block 33 is pulled back by the feeding cylinder 32, the groove 331 embedded with the product to be tested 10 is located between the two baffles 34;
the testing component 24 further comprises an upper substrate 1, a lower substrate 2, a left side plate 3, a right side plate 4, a pressure head 6 and a testing seat 8, wherein the left side plate 3 and the right side plate 4 are connected between the upper substrate 1 and the lower substrate 2 at intervals, the pressure head 6 and the testing seat 8 are both arranged between the upper substrate 1 and the lower substrate 2, the pressure head 6 is arranged below the upper substrate 1, and the testing seat 8 is arranged above the lower substrate 2;
a lower pressing cylinder 5 is mounted on the upper substrate 1, a piston rod of the lower pressing cylinder 5 penetrates through the upper substrate 1 downwards and is connected with the pressing head 6 to drive the pressing head 6 to move up and down, a supporting plate 7 is arranged above the lower substrate 2, the testing seat 8 is positioned above the supporting plate 7 and is movably connected with the supporting plate 7 through at least two guide pillars 9, the upper ends of the guide pillars 9 are fixedly connected with the testing seat 8, and the lower ends of the guide pillars 9 penetrate through the supporting plate 7 and are movably connected with the supporting plate 7;
the test seat 8 further comprises a shell 801 connected with the guide post 9 and a core 802 embedded in the shell 801 and used for placing a product to be tested 10, wherein a limit groove 803 is formed on the upper surface of the core 802, the lower end of the product to be tested 10 is embedded in the limit groove 803, and the upper surface of the product to be tested 10 extends out of the upper surface of the core 802;
a supporting column 11 is arranged in the core body 802 and is positioned right below the product to be tested 10, a through hole is formed in the center of the supporting column 11, the upper end of a top rod 13 is embedded into the through hole of the supporting column 11 from bottom to top, a ball body 12 in contact with the top surface of the top rod 13 is embedded into the upper portion of the through hole of the supporting column 11, and the upper portion of the ball body 12 is embedded into the central through hole of the product to be tested 10;
a supporting seat 14 is mounted on the upper surface of the supporting plate 7, a pressure lever 16 is connected to the supporting seat 14 and located under the test seat 8, a spring 15 is sleeved at the upper end of the pressure lever 16, a through hole for embedding the lower end of the ejector rod 13 is formed in the lower surface of the shell 801 of the test seat 8, the upper end of the spring 15 is embedded into the through hole in the shell 801 and sleeved on the ejector rod 13, when the spring 15 is in a non-test state, the spring 15 is in a natural relaxation state, and when the spring 15 is in a test state, the two ends of the spring 15 are in a contraction state under the extrusion of the ejector rod 13 and the pressure lever 16;
the edge of the pressure head 6 is provided with a convex ring part 601 protruding downwards, a sealing ring 602 is arranged on the lower surface of the pressure head 6 and right above the core body 802, and the upper surface of the shell 801 of the test socket 8 is provided with a groove part 804 for embedding the convex ring part 601.
A guide plate 35 is fixed on the upper surface of the base 31, an upward protruding strip 351 is provided at the edge of both sides of the guide plate 35, a strip-shaped protrusion 341 extending outward is provided on the lower surface of the baffle 34, the outer side of the strip-shaped protrusion 341 is fixedly connected with the protruding strip 351, so that two guide grooves are formed between the guide plate 35 and the two baffle 34, a strip-shaped sliding block portion 332 extending outward is provided on both sides of the lower portion of the movable block 33, and the two strip-shaped sliding block portions 332 are respectively inserted into the two guide grooves.
Example 2: a gas tightness test mechanism comprises an operation platform 23, a test assembly 24 arranged on the upper surface of the operation platform 23, a feeding base 25 positioned on one side of the test assembly 24, a blanking box 26 positioned on the other side of the test assembly 24 and a material conveying assembly 27 arranged on the upper surface of the operation platform 23;
the feeding seat 25 further comprises a base 31, a feeding cylinder 32 installed at one end of the base 31 and a movable block 33 connected with a piston rod of the feeding cylinder 32, wherein a groove 331 for placing a product to be tested 10 is formed in the upper surface of the movable block 33, a baffle 34 is fixed on each of two sides of the movable block 33, the two baffles 34 are respectively located at two ends of the movable block 33 and overlapped in the middle of the movable block 33, a feeding mechanism 28 is further arranged on one side of the feeding seat 25, when the movable block 33 is pushed out by the feeding cylinder 32, the groove 331 in the movable block 33 is communicated with the feeding mechanism 28 and used for receiving the product to be tested 10 from the feeding mechanism 28, and when the movable block 33 is pulled back by the feeding cylinder 32, the groove 331 embedded with the product to be tested 10 is located between the two baffles 34;
the testing component 24 further comprises an upper substrate 1, a lower substrate 2, a left side plate 3, a right side plate 4, a pressure head 6 and a testing seat 8, wherein the left side plate 3 and the right side plate 4 are connected between the upper substrate 1 and the lower substrate 2 at intervals, the pressure head 6 and the testing seat 8 are both arranged between the upper substrate 1 and the lower substrate 2, the pressure head 6 is arranged below the upper substrate 1, and the testing seat 8 is arranged above the lower substrate 2;
a lower pressing cylinder 5 is mounted on the upper substrate 1, a piston rod of the lower pressing cylinder 5 penetrates through the upper substrate 1 downwards and is connected with the pressing head 6 to drive the pressing head 6 to move up and down, a supporting plate 7 is arranged above the lower substrate 2, the testing seat 8 is positioned above the supporting plate 7 and is movably connected with the supporting plate 7 through at least two guide pillars 9, the upper ends of the guide pillars 9 are fixedly connected with the testing seat 8, and the lower ends of the guide pillars 9 penetrate through the supporting plate 7 and are movably connected with the supporting plate 7;
the test seat 8 further comprises a shell 801 connected with the guide post 9 and a core 802 embedded in the shell 801 and used for placing a product to be tested 10, wherein a limit groove 803 is formed on the upper surface of the core 802, the lower end of the product to be tested 10 is embedded in the limit groove 803, and the upper surface of the product to be tested 10 extends out of the upper surface of the core 802;
a supporting column 11 is arranged in the core body 802 and is positioned right below the product to be tested 10, a through hole is formed in the center of the supporting column 11, the upper end of a top rod 13 is embedded into the through hole of the supporting column 11 from bottom to top, a ball body 12 in contact with the top surface of the top rod 13 is embedded into the upper portion of the through hole of the supporting column 11, and the upper portion of the ball body 12 is embedded into the central through hole of the product to be tested 10;
a supporting seat 14 is mounted on the upper surface of the supporting plate 7, a pressure lever 16 is connected to the supporting seat 14 and located under the test seat 8, a spring 15 is sleeved at the upper end of the pressure lever 16, a through hole for embedding the lower end of the ejector rod 13 is formed in the lower surface of the shell 801 of the test seat 8, the upper end of the spring 15 is embedded into the through hole in the shell 801 and sleeved on the ejector rod 13, when the spring 15 is in a non-test state, the spring 15 is in a natural relaxation state, and when the spring 15 is in a test state, the two ends of the spring 15 are in a contraction state under the extrusion of the ejector rod 13 and the pressure lever 16;
the edge of the pressure head 6 is provided with a convex ring part 601 protruding downwards, a sealing ring 602 is arranged on the lower surface of the pressure head 6 and right above the core body 802, and the upper surface of the shell 801 of the test socket 8 is provided with a groove part 804 for embedding the convex ring part 601.
The supporting plate 7 is mounted on the lower substrate 2 through four supporting columns; an annular groove for embedding the sealing ring 602 is formed on the lower surface of the pressure head 6; the pressure head 6 is directly connected with a piston rod of the lower pressure cylinder 5 through an adapter plate, two ends of the adapter plate are respectively provided with a guide column, the lower end of the guide column is fixedly connected with the adapter plate, and the upper end of the guide column penetrates through the upper base plate 1 and is movably connected with the upper base plate 1 through a bearing seat.
When the air tightness testing mechanism is adopted, the use scene of the part is automatically simulated, so that the automatic test of the air tightness of the part is realized, the labor is saved, the production efficiency is improved, and the testing precision is greatly improved; in addition, the automatic feeding can be realized by the aid of the feeding seat and the mechanical arm, and the testing efficiency and the testing automation degree are further improved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides an air tightness test mechanism which characterized in that: the device comprises an operation carrier (23), a test component (24) arranged on the upper surface of the operation carrier (23), a feeding seat (25) positioned on one side of the test component (24), a discharging box (26) positioned on the other side of the test component (24) and a material conveying component (27) arranged on the upper surface of the operation carrier (23);
the feeding seat (25) further comprises a base (31), a feeding cylinder (32) arranged at one end of the base (31) and a movable block (33) connected with a piston rod of the feeding cylinder (32), wherein a groove (331) for placing a product to be tested (10) is formed in the upper surface of the movable block (33), two sides of the movable block (33) are respectively fixed with a baffle (34), the two baffles (34) are respectively positioned at two ends of the movable block (33) and overlapped in the middle of the movable block (33), a feeding mechanism (28) is further arranged on one side of the feeding seat (25), when the movable block (33) is pushed out by the feeding cylinder (32), the groove (331) in the movable block (33) is communicated with the feeding mechanism (28) and used for receiving the product to be tested (10) from the feeding mechanism (28), and when the movable block (33) is pulled back by the feeding cylinder (32), the groove (331) embedded with the product (10) to be tested is positioned between the two baffles (34);
the testing component (24) further comprises an upper substrate (1), a lower substrate (2), a left side plate (3), a right side plate (4), a pressure head (6) and a testing seat (8), wherein the left side plate (3) and the right side plate (4) are connected between the upper substrate (1) and the lower substrate (2) at intervals, the pressure head (6) and the testing seat (8) are both arranged between the upper substrate (1) and the lower substrate (2), the pressure head (6) is arranged below the upper substrate (1), and the testing seat (8) is arranged above the lower substrate (2);
a lower pressing cylinder (5) is mounted on the upper substrate (1), a piston rod of the lower pressing cylinder (5) penetrates through the upper substrate (1) downwards and is connected with the pressing head (6) for driving the pressing head (6) to move up and down, a supporting plate (7) is arranged above the lower substrate (2), the testing seat (8) is positioned above the supporting plate (7) and is movably connected with the supporting plate (7) through at least two guide pillars (9), the upper end of each guide pillar (9) is fixedly connected with the testing seat (8), and the lower end of each guide pillar (9) penetrates through the supporting plate (7) and is movably connected with the supporting plate (7);
the test seat (8) further comprises a shell (801) connected with the guide post (9) and a core body (802) embedded in the shell (801) and used for placing a product to be tested (10), wherein a limiting groove (803) is formed in the upper surface of the core body (802), the lower end of the product to be tested (10) is embedded in the limiting groove (803), and the upper surface of the product to be tested (10) extends out of the upper surface of the core body (802);
a supporting column (11) is arranged in the core body (802) and is positioned under a product (10) to be tested, a through hole is formed in the center of the supporting column (11), the upper end of a top rod (13) is embedded into the through hole of the supporting column (11) from bottom to top, a ball body (12) which is in contact with the top surface of the top rod (13) is embedded into the upper portion of the through hole of the supporting column (11), and the upper portion of the ball body (12) is embedded into the central through hole of the product (10) to be tested;
the upper surface of the supporting plate (7) is provided with a supporting seat (14), a pressure lever (16) is connected to the supporting seat (14) and located under the testing seat (8), a spring (15) is sleeved at the upper end of the pressure lever (16), a through hole for embedding the lower end of the ejector rod (13) is formed in the lower surface of the shell (801) of the testing seat (8), the upper end of the spring (15) is embedded into the through hole in the shell (801) and sleeved on the ejector rod (13), when the testing seat is in a non-testing state, the spring (15) is in a natural relaxation state, and when the testing seat is in a testing state, the two ends of the spring (15) are in a contraction state under the extrusion of the ejector rod (13) and the pressure lever (16);
the edge of the pressure head (6) is provided with a convex ring part (601) protruding downwards, a sealing ring (602) is arranged on the lower surface of the pressure head (6) and right above the core body (802), and the upper surface of the shell (801) of the test seat (8) is provided with a groove part (804) for embedding the convex ring part (601).
2. The airtightness testing mechanism according to claim 1, wherein: the upper surface of the base (31) is fixed with a guide plate (35), the edges of two sides of the guide plate (35) are respectively provided with an upward convex strip part (351), the lower surface of the baffle plate (34) is respectively provided with a strip-shaped bulge part (341) extending outwards, the outer side of the strip-shaped bulge part (341) is fixedly connected with the convex strip part (351), so that two guide grooves are formed between the guide plate (35) and the two baffle plates (34), two sides of the lower part of the movable block (33) are respectively provided with a strip-shaped sliding block part (332) extending outwards, and the two strip-shaped sliding block parts (332) are respectively embedded into the two guide grooves.
3. The airtightness testing mechanism according to claim 1, wherein: the supporting plate (7) is arranged on the lower substrate (2) through four supporting columns.
4. The airtightness testing mechanism according to claim 1, wherein: and an annular groove for embedding the sealing ring (602) is formed in the lower surface of the pressure head (6).
5. The airtightness testing mechanism according to claim 1, wherein: the pressure head (6) is directly connected with a piston rod of the lower pressure cylinder (5) through an adapter plate, two ends of the adapter plate are respectively provided with a guide column, the lower end of the guide column is fixedly connected with the adapter plate, and the upper end of the guide column penetrates through the upper base plate (1) and is movably connected with the upper base plate (1) through a bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021242952.1U CN213091072U (en) | 2020-06-30 | 2020-06-30 | Air tightness testing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021242952.1U CN213091072U (en) | 2020-06-30 | 2020-06-30 | Air tightness testing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213091072U true CN213091072U (en) | 2021-04-30 |
Family
ID=75622862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021242952.1U Expired - Fee Related CN213091072U (en) | 2020-06-30 | 2020-06-30 | Air tightness testing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213091072U (en) |
-
2020
- 2020-06-30 CN CN202021242952.1U patent/CN213091072U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210430 Termination date: 20210630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |