Top cover for filter

Abstract

The utility model discloses a top cover for a filter, which comprises a filter top cover, an oil outlet is arranged in the middle of the filter top cover, a sealing ring is arranged at the edge of the filter top cover, oil inlets are arranged around the oil outlet on the filter top cover, a trigger mechanism is mounted in one of the oil inlets, and the trigger mechanism is connected with the oil inlet. The trigger mechanism comprises a trigger sleeve fixed in the oil inlet, a positioning plate is installed in the trigger sleeve in a threaded mode, an in-out through hole is formed in the middle of the positioning plate, a trigger piston is movably installed in the trigger sleeve, a trigger pressing rod is fixedly installed on the trigger piston, and an alarm mechanism is arranged at the upper end of the trigger sleeve. According to the top cover for the filter, when the filter screen is blocked, the pressing rod is triggered to press the tail end of the metal strip on the negative electrode of the button battery, so that a power supply of a remote alarm is switched on, and after the power supply of the remote alarm is switched on, the top cover can give an alarm to remind a user to replace the filter in time.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a top cover for filters. Background Art

[0002] The oil filter, also known as the oil filter, is a vital component in the automobile engine system. Its main function is to remove impurities such as dust, metal particles, carbon sediments and soot particles in the oil to protect the engine. After long-term use, a large amount of impurities will accumulate on the filter screen inside the oil filter. When a large amount of impurities accumulate on the filter screen, the filtering performance will be greatly reduced, affecting the normal use of the equipment. Therefore, a filter cover is proposed to remind users to replace the filter when the filter performance is reduced. Utility Model Content

[0003] The main purpose of the utility model is to provide a top cover for a filter, which can effectively solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A top cover for a filter comprises a top cover for the filter, an oil outlet is provided in the middle position of the top cover for the filter, a sealing ring is provided at the edge of the top cover for the filter, an oil inlet is provided on the top cover for the filter around the oil outlet, and a trigger mechanism is installed in one of the oil inlets, the trigger mechanism comprises a trigger sleeve fixed in the oil inlet, a positioning plate is threadedly installed in the trigger sleeve, an inlet and outlet through hole is provided in the middle position of the positioning plate, a trigger piston is movably installed in the trigger sleeve, a trigger pressure rod is fixedly installed on the trigger piston, an alarm mechanism is provided at the upper end of the trigger sleeve, the alarm mechanism comprises a protective shell threadedly installed on the trigger sleeve, a button battery is fixedly installed in the protective shell, inlet and outlet holes are provided at the bottom of the protective shell, a remote alarm is fixedly installed on the upper end of the protective shell, and a metal strip is provided between the remote alarm and the button battery.

[0006] Furthermore, the trigger sleeve is provided with threads inside, and the positioning plate is installed inside the trigger sleeve through the threads.

[0007] Furthermore, one end of the limit spring is connected to the trigger piston, and the other end of the limit spring is connected to the positioning plate. The trigger pressure rod is movably installed in the trigger sleeve through the trigger piston, and the trigger pressure rod passes through the positioning plate through the entry and exit through hole.

[0008] Furthermore, the protective shell is provided with an installation opening, and the metal strip passes through the protective shell through the installation opening.

[0009] Furthermore, one end of the metal strip is connected to the positive pole at the upper end of the button battery, and the other end of the metal strip is arranged below the negative pole of the button battery. The button battery and the remote alarm are connected in series through the metal strip, and the trigger pressure rod enters the protective shell through the entry and exit hole.

[0010] Furthermore, the trigger mechanism and the alarm mechanism are installed on the filter top cover through the oil inlet.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] During use, the filter top cover is installed on the filter tank body. Once the filter screen inside the filter is clogged, the pressure inside the filter tank body will increase. After the pressure inside the filter tank body increases, the trigger piston will move toward the inside of the trigger sleeve. After the trigger piston moves toward the inside of the trigger sleeve, it will drive the trigger pressure rod to enter the protective shell. After the trigger pressure rod enters the protective shell, it will press the end of the metal bar against the negative pole of the button battery, thereby turning on the power of the remote alarm. After the remote alarm is powered on, it will sound an alarm to remind the user to replace the filter in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the trigger mechanism of the utility model;

[0016] Figure 4 It is a schematic diagram of the alarm mechanism of the utility model.

[0017] In the figure: 1. filter top cover; 2. sealing ring; 3. oil inlet; 4. oil outlet; 5. trigger mechanism; 501. trigger sleeve; 502. limit spring; 503. trigger piston; 504. positioning plate; 505. inlet and outlet holes; 506. trigger pressure rod; 6. alarm mechanism; 601. protective shell; 602. inlet and outlet holes; 603. metal strip; 604. button battery; 605. installation port; 606. remote alarm. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1As shown, a top cover for a filter comprises a filter top cover 1, an oil outlet 4 is provided in the middle of the filter top cover 1, a sealing ring 2 is provided at the edge of the filter top cover 1, an oil inlet 3 is provided on the filter top cover 1 around the oil outlet 4, and a trigger mechanism 5 is installed in one of the oil inlets 3, an alarm mechanism 6 is provided at the upper end of a trigger sleeve 501, the trigger mechanism 5 and the alarm mechanism 6 are installed on the filter top cover 1 through the oil inlet 3, and the coordinated use of the trigger mechanism 5 and the alarm mechanism 6 can remind the user to replace the filter when the filter performance is reduced.

[0020] like Figure 2 Figure 3 As shown, the trigger mechanism 5 includes a trigger sleeve 501 fixed in the oil inlet 3, a positioning plate 504 is installed with a thread inside the trigger sleeve 501, an inlet and outlet through hole 505 is opened in the middle of the positioning plate 504, a trigger piston 503 is movably installed in the trigger sleeve 501, a trigger pressure rod 506 is fixedly installed on the trigger piston 503, a thread is provided inside the trigger sleeve 501, the positioning plate 504 is installed inside the trigger sleeve 501 through the thread, one end of the limit spring 502 is connected to the trigger piston 503, and the other end of the limit spring 502 is connected to the positioning plate 504, the trigger pressure rod 506 is movably installed in the trigger sleeve 501 through the trigger piston 503, and the trigger pressure rod 506 passes through the positioning plate 504 through the inlet and outlet through hole 505.

[0021] Specifically, under normal circumstances, the limit spring 502 will provide elastic force for the trigger piston 503, so that the trigger piston 503 is located at the lower edge of the trigger sleeve 501. When the filter screen in the filter is blocked, the pressure inside the filter tank will increase. After the pressure inside the filter tank increases, the trigger piston 503 will move toward the inside of the trigger sleeve 501. After the trigger piston 503 moves toward the inside of the trigger sleeve 501, it will drive the trigger pressure rod 506 to approach the alarm mechanism 6.

[0022] like Figure 2 Figure 4 As shown, the alarm mechanism 6 includes a protective shell 601 threadedly mounted on the trigger sleeve 501, a button battery 604 is fixedly mounted in the protective shell 601, an entry and exit hole 602 is provided at the bottom of the protective shell 601, a remote alarm 606 is fixedly mounted on the upper end of the protective shell 601, a metal strip 603 is provided between the remote alarm 606 and the button battery 604, a mounting opening 605 is provided on the protective shell 601, the metal strip 603 passes through the protective shell 601 through the mounting opening 605, one end of the metal strip 603 is connected to the positive pole at the upper end of the button battery 604, the other end of the metal strip 603 is arranged below the negative pole of the button battery 604, and the button battery 604 and the remote alarm 606 are connected in series through the metal strip 603, and the trigger pressure rod 506 enters the protective shell 601 through the entry and exit hole 602.

[0023] Specifically, after the trigger piston 503 moves toward the inside of the trigger sleeve 501, the trigger pressure rod 506 will enter the protective shell 601. The trigger pressure rod 506 entering the protective shell 601 will press the end of the metal strip 603 against the negative pole of the button battery 604, thereby turning on the power of the remote alarm 606. After the power of the remote alarm 606 is turned on, it will sound an alarm to remind the user to replace the filter in time.

[0024] It should be noted that the utility model is a filter cover. In actual use, the entire device is first installed on the engine. In normal use, the limit spring 502 provides elastic force for the trigger piston 503, so that the trigger piston 503 is located at the lower edge of the trigger sleeve 501. Once the filter screen inside the filter is blocked, the pressure inside the filter tank will increase. Since one end of the limit spring 502 is connected to the trigger piston 503 and the other end of the limit spring 502 is connected to the positioning plate 504, the trigger pressure rod 506 is movably installed in the trigger piston 503. The trigger rod 506 passes through the sleeve 501 and the positioning plate 504 through the inlet and outlet hole 505. Therefore, after the pressure inside the filter tank increases, the trigger piston 503 will move toward the inside of the trigger sleeve 501. After the trigger piston 503 moves toward the inside of the trigger sleeve 501, the trigger rod 506 will enter the protective shell 601. The trigger rod 506 entering the protective shell 601 will press the end of the metal strip 603 against the negative electrode of the button battery 604, thereby turning on the power of the remote alarm 606 and sounding an alarm to remind the user to replace the filter in time.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A filter top cover, comprising a filter top cover (1), characterized in that: An oil outlet (4) is provided in the middle of the filter top cover (1), a sealing ring (2) is provided at the edge of the filter top cover (1), an oil inlet (3) is provided on the filter top cover (1) around the oil outlet (4), and a trigger mechanism (5) is installed in one of the oil inlets (3), the trigger mechanism (5) comprises a trigger sleeve (501) fixed in the oil inlet (3), a positioning plate (504) is installed in the trigger sleeve (501) through an internal thread, an inlet and outlet through hole (505) is provided in the middle of the positioning plate (504), and a trigger piston (505) is movably installed in the trigger sleeve (501). 03), a trigger pressure rod (506) is fixedly mounted on the trigger piston (503), an alarm mechanism (6) is provided at the upper end of the trigger sleeve (501), the alarm mechanism (6) comprises a protective shell (601) threadedly mounted on the trigger sleeve (501), a button battery (604) is fixedly mounted in the protective shell (601), an inlet and outlet hole (602) is provided at the bottom of the protective shell (601), a remote alarm (606) is fixedly mounted on the upper end of the protective shell (601), and a metal strip (603) is provided between the remote alarm (606) and the button battery (604).

2. A filter top cover according to claim 1, characterized in that: The trigger sleeve (501) is provided with threads inside, and the positioning plate (504) is installed inside the trigger sleeve (501) through the threads.

3. A filter top cover according to claim 2, characterized in that: The piston (503) is connected to a limit spring (502), the other end of which is connected to a positioning plate (504). The trigger pressure rod (506) is movably installed in the trigger sleeve (501) through the trigger piston (503), and the trigger pressure rod (506) passes through the positioning plate (504) through the entry and exit through hole (505).

4. A filter top cover according to claim 3, characterized in that: The protective shell (601) is provided with an installation opening (605), and the metal strip (603) passes through the protective shell (601) through the installation opening (605).

5. A filter top cover according to claim 4, characterized in that: One end of the metal strip (603) is connected to the positive electrode at the upper end of the button battery (604), and the other end of the metal strip (603) is arranged below the negative electrode of the button battery (604). The button battery (604) and the remote alarm (606) are connected in series through the metal strip (603), and the trigger pressure rod (506) enters the protective shell (601) through the entry and exit hole (602).

6. A filter top cover according to claim 5, characterized in that: The trigger mechanism (5) and the alarm mechanism (6) are installed on the filter top cover (1) through the oil inlet (3).

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