Sealing detection device for fuel filter

Abstract

A clamping unit comprises a vertical guide rail which is connected with an oil cylinder through a cross rod, the vertical guide rail is provided with a cross beam which slides along the vertical direction, the bottom of the vertical guide rail is fixedly connected with a supporting plate below the cross beam, the supporting plate is provided with a limiting seat, the limiting seat is provided with a limiting groove, and a clamping unit is arranged on the limiting groove. An arc-shaped fixing clamping plate is arranged on the side, facing the vertical guide rail, of the limiting groove, the inner side face of the arc-shaped fixing clamping plate is flush with the inner wall of the limiting groove, a rectangular hole is formed in the middle of the cross beam, and a vertical plate sliding in the horizontal direction is arranged in the rectangular hole; the side face, facing the vertical guide rail, of the vertical plate is provided with a blocking clamping block matched with the arc-shaped fixing clamping plate to clamp a workpiece, and a water tank is formed in the base. According to the fuel filter sealing detection device, the fuel filter can be stably clamped, the filter outlet of the side outlet is blocked through the blocking clamping block, good airtightness is achieved in the detection process, and then airtightness detection is conducted.

Description

Technical Field

[0001] The utility model relates to the field of air tightness inspection, in particular to a fuel filter sealing detection device. Background Art

[0002] After the fuel filter is manufactured, it needs to be tested for air tightness. During the test, the filter outlet needs to be blocked, and then the filter inlet needs to be inflated. After inflation, the filter is placed in water to observe whether bubbles are generated.

[0003] Chinese patent CN202021879381.2 discloses a water-detection air tightness test device, including a bracket, on which a lifting mounting frame is slidably connected, and a lifting cylinder for driving the lifting mounting frame to move longitudinally is connected between the bracket and the lifting mounting frame; a mounting cross bar is fixedly connected to the lower part of the lifting mounting frame, and a plurality of groups of sealing blocks distributed laterally in parallel are fixedly connected to the mounting cross bar; an inflation unit for inflating the gasoline filter is arranged above each group of sealing blocks; and the distances between the corresponding inflation units and the sealing blocks can be adjusted individually.

[0004] The water-detection air tightness test equipment can only perform air tightness tests on filters with top air intake and bottom air outlet or top air outlet and bottom air intake, but is not applicable to air tightness tests on filters with side air outlet. Therefore, there is an urgent need for a fuel filter sealing detection device that can perform air tightness tests on filters with side air outlet. Utility Model Content

[0005] The utility model aims to provide a fuel filter sealing detection device, which can stably clamp the fuel filter and can block the filter outlet on the side by adjusting the height of the sealing clamp, so that the inspection process has good air tightness and then conducts air tightness inspection.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a fuel filter sealing detection device, comprising a base and a clamping unit installed on the base through an oil cylinder, the clamping unit comprising a vertical guide rail connected to the oil cylinder through a cross bar, the vertical guide rail is provided with a cross beam that slides vertically, the bottom of the vertical guide rail is located below the cross beam and is fixedly connected with a support plate, a limited seat is provided on the support plate, a limited groove is provided on the limit seat, an arc-shaped fixed clamping plate is provided on the side of the limit groove facing the vertical guide rail, the inner side surface of the arc-shaped fixed clamping plate is flush with the inner wall of the limit groove, a rectangular hole is provided in the middle of the cross beam, a vertical plate that slides in the horizontal direction is provided in the rectangular hole, and a sealing clamping block that cooperates with the arc-shaped fixed clamping plate to clamp a workpiece is provided on the side of the vertical plate facing the vertical guide rail, and a water tank is provided on the base.

[0007] Preferably, first guide grooves are provided on both sides of the rectangular hole, first sliders capable of sliding in the first guide grooves are provided on both sides of the vertical plate, a cylinder is installed at the end of the crossbeam facing away from the vertical guide rail, and the shaft of the cylinder extends into the rectangular hole and is connected to the vertical plate.

[0008] Preferably, a first plate member and a second plate member are respectively provided at both ends of the rectangular hole on the upper surface of the cross beam, and a plurality of light rods penetrating the vertical plate are provided between the first plate member and the second plate member.

[0009] Preferably, an oblique support is fixedly connected to the side of the vertical plate facing away from the vertical guide rail; a second guide slot is provided on the bottom surface of the crossbeam, a second slide block is provided in the second guide slot, and the upper end of the oblique support is fixedly connected to the second slide block.

[0010] Preferably, a screw rod penetrating the vertical plate is arranged on the back of the blocking clamp block, and a nut is sleeved on one end of the screw rod facing away from the vertical guide rail.

[0011] Preferably, a stud is fixedly connected to the bottom of the limiting seat; and a screw hole for screwing with the stud is provided on the supporting plate.

[0012] Preferably, a plurality of hollow holes are provided on the support plate.

[0013] Preferably, a third slide groove is provided on the side of the vertical guide rail facing the crossbeam; a third slider sliding in the third slide groove is provided at the end of the crossbeam, and a screw rod is spirally penetrated in the third slider; a motor connected to the screw rod is installed at the upper end of the vertical guide rail.

[0014] According to the above technical scheme, the utility model provides a fuel filter sealing detection device, including a base and a clamping unit installed on the base through an oil cylinder, the clamping unit including a vertical guide rail connected to the oil cylinder through a cross bar, the vertical guide rail is provided with a cross beam sliding along the vertical direction, the bottom of the vertical guide rail is located below the cross beam and is fixedly connected with a support plate, a limited seat is provided on the support plate, a limited groove is provided on the limit seat, an arc-shaped fixed clamping plate is provided on the side of the limit groove facing the vertical guide rail, the inner side surface of the arc-shaped fixed clamping plate is flush with the inner wall of the limit groove, a rectangular hole is provided in the middle of the cross beam, a vertical plate sliding along the horizontal direction is provided in the rectangular hole, and a sealing clamping block cooperating with the arc-shaped fixed clamping plate to clamp a workpiece is provided on the side of the vertical plate facing the vertical guide rail, and a water tank is provided on the base.

[0015] The fuel filter sealing detection device is used as follows: first insert the fuel filter to be inspected into the limit groove, then adjust the height of the blocking clamp to the same position as the filter outlet height by adjusting the height of the crossbeam, then drive the vertical plate to move in the rectangular hole so that the blocking clamp and the arc-shaped fixed clamp cooperate to clamp the fuel filter, and at the same time, the filter outlet can be blocked by the blocking clamp to prevent leakage. After the fuel filter is clamped, an inlet sealing plate is provided at the inlet of the fuel filter, and then the fuel filter is inflated through the one-way quick-connect plug provided on the inlet sealing plate. After the inflation is completed, the fuel filter is completely submerged below the liquid level in the water tank for a certain period of time through the contraction of the oil cylinder. When bubbles are generated in the liquid surface, it means that the fuel filter is unqualified, and when no bubbles are generated in the liquid surface, it means that the fuel filter is qualified.

[0016] The beneficial effects of the fuel filter sealing detection device are as follows: the fuel filter can be stably clamped, and the side filter outlet can be blocked by the blocking clamp by adjusting the height of the blocking clamp. The blocking clamp can not only clamp the fuel filter but also block the filter outlet, so that the inspection process has good air tightness. Then, the air tightness inspection is performed. By adjusting the height of the blocking clamp, the filter outlets set at different heights can be clamped and blocked, and the versatility is stronger.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural diagram of a preferred implementation of a fuel filter sealing detection device;

[0020] Figure 2 yes Figure 1 The structural diagram of the second perspective;

[0021] Figure 3 yes Figure 1 The structural diagram of the third perspective;

[0022] Figure 4 yes Figure 1 The side view of the structure;

[0023] Figure 5 yes Figure 4 AA cross-sectional structural diagram;

[0024] Figure 6It is a structural schematic diagram of a preferred implementation of the inlet sealing plate.

[0025] Description of Reference Numerals

[0026] 1-base; 2-water tank; 3-support plate; 4-screw hole; 5-limit seat; 6-screw rod; 7-nut; 8-oblique support; 9-cylinder; 10-first plate; 11-vertical plate; 12-light rod; 13-third slide groove; 14-cross beam; 15-second plate; 16-motor; 17-vertical guide rail; 18-screw rod; 19-cross rod; 20-oil cylinder; 21-hollow hole; 22-first guide slide groove; 23-first slider; 24-blocking clamp; 25-limit groove; 26-third slider; 27-second guide slide groove; 28-second slider; 29-stud; 30-arc fixing splint; 31-import sealing plate; 32-one-way quick-connect plug; 33-screw pipe. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0028] In the present utility model, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0029] See also Figure 1-6 The fuel filter sealing detection device shown comprises a base 1 and a clamping unit installed on the base 1 through an oil cylinder 20, the clamping unit comprises a vertical guide rail 17 connected to the oil cylinder 20 through a cross bar 19, a cross beam 14 for vertical sliding is arranged on the vertical guide rail 17, a bottom of the vertical guide rail 17 is located below the cross beam 14 and is fixedly connected with a support plate 3, a limiting seat 5 is arranged on the support plate 3, a limiting groove 25 is arranged on the limiting seat 5, an arc-shaped fixed clamping plate 30 is arranged on the side of the limiting groove 25 facing the vertical guide rail 17, the inner side surface of the arc-shaped fixed clamping plate 30 is flush with the inner wall of the limiting groove 25, a rectangular hole is arranged in the middle of the cross beam 14, a vertical plate 11 for horizontal sliding is arranged in the rectangular hole, a sealing clamping block 24 for clamping a workpiece in cooperation with the arc-shaped fixed clamping plate 30 is arranged on the side of the vertical plate 11 facing the vertical guide rail 17, and a water tank 2 is arranged on the base 1.

[0030] Through the implementation of the above technical solution, during the inspection, the fuel filter to be inspected is first inserted and placed in the limit groove 25, and then the height of the blocking clamp 24 is adjusted to the same position as the filter outlet height by adjusting the height of the cross beam 14, and then the vertical plate 11 is driven to move in the rectangular hole so that the blocking clamp 24 and the arc-shaped fixed clamp 30 cooperate to clamp the fuel filter, and the filter outlet can also be blocked by the blocking clamp 24 to prevent leakage. After the fuel filter is clamped, the inlet of the fuel filter is covered with an inlet sealing plate 31, and then the fuel filter is inflated through the one-way quick-connect plug 32 provided on the inlet sealing plate 31. After the inflation is completed, the fuel filter is completely immersed below the liquid level in the water tank 2 for a certain period of time through the contraction of the oil cylinder 20. When bubbles are generated in the liquid surface, it means that the fuel filter is unqualified, and when no bubbles are generated in the liquid surface, it means that the fuel filter is qualified.

[0031] Due to the use of the airtight inspection device, the fuel filter can be stably clamped, and the plugging block 24 can be adjusted to block the filter outlet by adjusting the height of the plugging block 24. The plugging block 24 can not only clamp the fuel filter but also block the filter outlet, so that the inspection process has good airtightness. When the airtightness inspection is performed again, the height of the plugging block 24 can also be adjusted to clamp and block the filter outlet set at different heights, which has stronger versatility.

[0032] See also Figure 6 As shown, for the filter with a screw inlet, one end of the inlet sealing plate 31 is provided with a screw pipe 33 which can be installed at the inlet of the filter to be screwed to the inlet of the filter, and the other end of the inlet sealing plate 31 is provided with a one-way quick-connect pipe 32 which can be quickly connected to the inflation pipe of an external inflation device to inflate the filter, and a one-way valve is provided in the one-way quick-connect pipe 32, so that gas can only enter the one-way quick-connect pipe 32 but not be discharged, thereby avoiding air leakage at the position of the one-way quick-connect pipe 32.

[0033] For the flange connection structure with the inlet as a bare tube, one end of the inlet sealing plate 31 is provided with a sealing plug that can be sealably inserted into the filter inlet, and the other end of the inlet sealing plate 31 is provided with a one-way quick-connect plug 32 that can be quickly connected to the inflation pipe of an external inflation device to inflate the filter. A one-way valve is provided in the one-way quick-connect plug 32, and gas can only enter the one-way quick-connect plug 32 but not be discharged. In this way, air leakage at the position of the one-way quick-connect plug 32 can be avoided.

[0034] In this embodiment, in order to further provide a lateral movement adjustment structure of the vertical plate 11, first guide slots 22 are provided on both sides of the rectangular hole, first sliders 23 that can slide in the first guide slots 22 are provided on both sides of the vertical plate 11, and a cylinder 9 is installed at the end of the crossbeam 14 facing away from the vertical guide rail 17, and the shaft of the cylinder 9 extends into the rectangular hole and connects the vertical plate 11. The vertical plate 11 can be pushed closer to or away from the vertical guide rail 17 by the extension and contraction of the shaft of the cylinder 9, thereby adjusting the position of the blocking clamp 24, and the first slider 23 can slide in the first guide slot 22 to play a role of guiding.

[0035] In this embodiment, in order to make the blocking clamp 24 have a better blocking effect, the front end of the blocking clamp 24 is set to be made of rubber material.

[0036] In this embodiment, the upper surface of the cross beam 14 is provided with a first plate 10 and a second plate 15 at both ends of the rectangular hole, and a plurality of light rods 12 penetrating the vertical plate 11 are provided between the first plate 10 and the second plate 15. Through such a configuration, when the light rods 12 move laterally, the plurality of light rods 12 can play a better guiding role, thereby improving the movement stability of the vertical plate 11.

[0037] In this embodiment, the side of the vertical plate 11 facing away from the vertical guide rail 17 is fixedly connected with an oblique support 8; the bottom surface of the cross beam 14 is provided with a second guide slot 27, a second slider 28 is provided in the second guide slot 27, and the upper end of the oblique support 8 is fixedly connected to the second slider 28. Through such an arrangement, when the blocking clamp 24 is in a clamped state, the bottom of the vertical plate 11 is subjected to an outward torsion force, and the oblique support 8 can improve the strength of the vertical plate 11. In addition, through the arrangement of the second guide slot 27 and the second slider 28, the oblique support 8 can move with the movement of the vertical plate 11.

[0038] In this embodiment, a screw rod 6 penetrating the vertical plate 11 is disposed on the back of the blocking clamp 24, and a nut 7 is sleeved on one end of the screw rod 6 facing away from the vertical guide rail 17. With such a configuration, the blocking clamp 24 can be easily replaced, and an appropriate blocking clamp 24 can be replaced according to different filter outlet sizes.

[0039] In this embodiment, a stud 29 is fixed to the bottom of the limit seat 5; and a screw hole 4 for screwing with the stud 29 is provided on the support plate 3. Through such a configuration, the limit seats 5 of different specifications can be replaced for filters of different diameters. The stud 29 and the screw hole 4 should cooperate so that after the limit seat 5 is tightened, the arc-shaped fixing clamp 30 can be located on the side close to the vertical guide rail 17, so that the filter can be clamped by the blocking clamp 24 opposite thereto.

[0040] In this embodiment, a plurality of hollow holes 21 are provided on the support plate 3. Through such a configuration, the resistance when the support plate 3 sinks below the liquid surface is reduced.

[0041] In this embodiment, in order to further provide a vertical guide structure of the vertical guide rail 17, a third slide groove 13 is provided on the side of the vertical guide rail 17 facing the cross beam 14; a third slider 26 sliding in the third slide groove 13 is provided at the end of the cross beam 14, and a screw rod 18 is spirally penetrated in the third slider 26; and a motor 16 connected to the screw rod 18 is installed at the upper end of the vertical guide rail 17.

[0042] Specifically, the screw rod 18 rotates by the rotation of the motor 16, and the screw rod 18 rotates to cooperate with the screw connection with the third slider 26 so that the third slider 26 can move vertically, thereby driving the crossbeam 14 to move vertically. The structure of the third slide groove 13 can be a T-slot, and the corresponding third slider 26 can be a T-block.

[0043] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0044] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0045] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A fuel filter sealing detection device, characterized in that: The fuel filter sealing detection device comprises a base (1) and a clamping unit mounted on the base (1) via an oil cylinder (20), the clamping unit comprising a vertical guide rail (17) connected to the oil cylinder (20) via a cross bar (19), and a cross beam (14) which slides vertically is arranged on the vertical guide rail (17); The bottom of the vertical guide rail (17) is located below the cross beam (14) and is fixedly connected to a support plate (3), a limit seat (5) is arranged on the support plate (3), a limit groove (25) is arranged on the limit seat (5), an arc-shaped fixed clamping plate (30) is arranged on the side of the limit groove (25) facing the vertical guide rail (17), and the inner side surface of the arc-shaped fixed clamping plate (30) is flush with the inner wall of the limit groove (25); A rectangular hole is provided in the middle of the crossbeam (14), a vertical plate (11) sliding in the horizontal direction is provided in the rectangular hole, a blocking clamp (24) cooperating with the arc-shaped fixed clamp (30) to clamp a workpiece is provided on the side of the vertical plate (11) facing the vertical guide rail (17), and a water tank (2) is provided on the base (1).

2. The fuel filter sealing detection device according to claim 1, characterized in that: First guide grooves (22) are arranged on both sides of the rectangular hole, first sliders (23) capable of sliding in the first guide grooves (22) are arranged on both sides of the vertical plate (11), and a cylinder (9) is installed at the end of the crossbeam (14) facing away from the vertical guide rail (17), and the shaft of the cylinder (9) extends into the rectangular hole and is connected to the vertical plate (11).

3. The fuel filter sealing detection device according to claim 2, characterized in that: A first plate member (10) and a second plate member (15) are respectively arranged on the upper surface of the cross beam (14) at both ends of the rectangular hole, and a plurality of light rods (12) penetrating the vertical plate (11) are arranged between the first plate member (10) and the second plate member (15).

4. The fuel filter sealing detection device according to claim 3, characterized in that: The side of the vertical plate (11) facing away from the vertical guide rail (17) is fixedly connected with an oblique support (8); The bottom surface of the cross beam (14) is provided with a second guide groove (27), a second slide block (28) is provided in the second guide groove (27), and the upper end of the oblique support (8) is fixedly connected to the second slide block (28).

5. The fuel filter sealing detection device according to claim 1, characterized in that: A screw rod (6) penetrating the vertical plate (11) is arranged on the back of the blocking clamp (24), and a nut (7) is sleeved on one end of the screw rod (6) facing away from the vertical guide rail (17).

6. The fuel filter sealing detection device according to claim 1, characterized in that: A stud (29) is fixedly connected to the bottom of the limiting seat (5); The support plate (3) is provided with a screw hole (4) for screwing with the screw bolt (29).

7. The fuel filter sealing detection device according to claim 1, characterized in that: The support plate (3) is provided with a plurality of hollow holes (21).

8. The fuel filter sealing detection device according to claim 1, characterized in that: A third sliding groove (13) is provided on the side of the vertical guide rail (17) facing the crossbeam (14); A third sliding block (26) is provided at the end of the cross beam (14) and slides in the third sliding groove (13), and a screw rod (18) is spirally penetrated in the third sliding block (26); A motor (16) connected to the screw rod (18) is installed at the upper end of the vertical guide rail (17).

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