Spiral protective cover for fixing filter

Abstract

The utility model discloses a spiral protective cover for fixing a filter, relates to the technical field of filter fixing and protection, and is used for solving the problems that the filter is high in disassembly and assembly cost and relatively weak in overall stability after being installed. The lining plate is fixed in an automobile through the locking mechanism, the pressing column on the threaded column is pressed, so that the abutting column drives the side supporting block to be closed while making contact with the third spring, then the side supporting block breaks away from abutting connection with the pressing column after penetrating out of the plate, and the pressing column is pushed by the third spring, so that the lining plate is fixed. The unfolded side supporting blocks are matched with the threaded sleeves on the threaded columns to complete locking and fixing of the plate and the lining plate, when the filter is replaced in the later period, the threaded sleeves are rotated firstly, then the pressing columns are extruded, the whole locking mechanism can be taken out and reused, and compared with fixing through disposable clamps, the filter replacement cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter fixing and protection, in particular to a spiral protection cover used for filter fixing. Background Art

[0002] Filter refers to an accessory that filters impurities or gases through filter paper. It generally refers to automobile filters, which are engine accessories. According to different filtering functions, they are divided into: oil filter, fuel filter, air filter and air conditioning filter, etc. The engine has three filters: air, oil and fuel, which are generally called "three filters". Together with the air conditioning filter, they are commonly known as "four filters", which are responsible for filtering the lubrication system, the medium in the combustion system, the engine intake system, and the cabin air circulation system respectively;

[0003] The fuel filter is usually installed on the fire wall behind the engine compartment. When the filter is equipped with a bypass valve, the two ends are fixed with disposable clips. When disassembling, the clips need to be cut off with pliers and installed with new clips. At the same time, the vibration generated when the car moves can easily cause some impurities to fall off the filter paper when the filter paper is blocked, and flow through the bypass valve for fuel. If the filter is not replaced, the probability of engine wear and failure increases;

[0004] For this purpose, we propose a spiral protective cover for fixing the filter. Utility Model Content

[0005] The utility model aims to provide a spiral protective cover for fixing a filter to solve the problems of high filter disassembly and assembly cost and weak overall stability after installation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A spiral protective cover for fixing a filter, comprising a lining plate and a protective shell, wherein the protective shell is fixed to one side of the lining plate by spot welding, a spiral rubber support is fixed to the inner wall of the protective shell by adhesion, and a spring is installed and fixed to the bottom inner wall of the protective shell;

[0008] The top of the side wall of the protective shell is sleeved with a gear sleeve movably connected, the inner wall of the gear sleeve is provided with a groove, the inner wall of the gear sleeve is evenly slidably connected with a locking block, and one side of the locking block passes through the groove and is slidably connected with the groove.

[0009] Furthermore, the outer wall of the protective shell is fixed with a fixed shell by spot welding, the inner wall of the fixed shell is slidably connected to a square rod, one side of the square rod passes through the fixed shell and is slidably connected to a through groove on the fixed shell.

[0010] Furthermore, one end of the square rod is fixed to the limiting column by spot welding, and one end of the limiting column passes through the fixed shell and abuts against the tooth pattern on the gear sleeve. A second spring is installed in the fixed shell and on one side of the square rod.

[0011] Furthermore, a locking mechanism is evenly installed on the lining plate, and the locking mechanism includes a threaded column, a pressing column and a resist column. The threaded column is evenly installed on the lining plate, and a pressing column is slidably connected inside the threaded column, and one end of the pressing column passes through one end of the threaded column. A spring three is installed on the inner wall of the threaded column, and a resist column is slidably connected to one end of the spring three, and one end of the resist column is in contact with the pressing column.

[0012] Furthermore, the locking mechanism also includes a threaded sleeve and a side support block. The outer wall of the threaded column is sleeved with a threaded sleeve, and the side support block is symmetrically rotatably connected in the groove of the outer wall of the threaded column and located on the abutment column.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the lining plate is fixed inside the automobile by a locking mechanism, and the pressing column on the threaded column is pressed, so that the abutting column contacts the spring three and drives the side support block to close. Then, after the side support block passes through the plate, it is separated from the abutment against the pressing column. After being pushed by the spring three, the unfolded side support block cooperates with the threaded sleeve on the threaded column to complete the locking and fixing of the plate and the lining plate. When the filter is replaced later, the threaded sleeve is rotated first and then the pressing column is squeezed, so that the entire locking mechanism can be taken out and reused. Compared with fixing by a disposable clip, the cost of filter replacement is saved;

[0015] 2. In the utility model, the filter is stored in the protective shell, and the lock block is pushed out by rotating the movable gear sleeve on the top of the protective shell, and then the abutment of the spring in the protective shell and the side support of the spiral rubber support on the inner wall of the protective shell are combined to achieve the stability of the filter installation and prevent excessive impurities from entering the engine from the bypass valve due to vehicle vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the installation of the filter of the utility model in the protective shell;

[0017] Figure 2 This is a schematic diagram of the overall structure of the spiral protective cover used for fixing the filter in the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the protective shell of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed shell of the utility model;

[0020] Figure 5 It is a schematic diagram of the overall structure of the locking mechanism of the utility model.

[0021] In the figure: 1. lining plate; 2. protective shell; 3. gear sleeve; 4. groove; 5. locking block; 6. spiral rubber support; 7. spring one; 8. fixed shell; 9. square rod; 10. spring two; 11. limit column; 12. locking mechanism; 121. threaded column; 122. pressing column; 123. threaded sleeve; 124. resist column; 125. spring three; 126. side support block. DETAILED DESCRIPTION

[0022] 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 in 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.

[0023] See also Figure 1-5 , the utility model provides a technical solution:

[0024] For a good fuel filter, a check valve and a bypass valve are installed in its housing to prevent the backflow of fuel and the reduction of fuel circulation rate caused by the clogging of filter paper in the filter. In order to take into account the high viscosity of the engine oil during cold start or the partial or complete clogging of the paper filter element, a direct oil flow channel is designed to ensure that the oil can be smoothly circulated back to the engine. When the bypass valve is opened under the pressure of the oil pump, the oil circulating back to the engine through the bypass valve will not be filtered by the paper filter element, but will also flush the large particles of impurities that have been filtered out by the paper filter element back into the engine through the bypass valve, causing uninterrupted secondary wear to the engine. In order to reduce the detachment of impurities from the filter paper surface, it is necessary to improve the stability of the filter installation;

[0025] For this purpose, a lining plate 1 is installed on the original bracket, and a protective shell 2 is fixedly connected to the lining plate 1. Figure 1 As shown, a gear sleeve 3 is movably mounted on the top of the outer wall of the protective shell 2, and a locking block 5 is evenly installed on the inner wall of the protective shell 2. One side of the locking block 5 penetrates the inner wall of the protective shell 2 and abuts against the groove 4 on the gear sleeve 3. Figure 3As shown, the groove 4 in the entire gear sleeve 3 is connected with a cut surface, so that the locking block 5 can be pushed out after the gear sleeve 3 is rotated. If it is rotated again, the entire locking block 5 can be pushed into the groove 4 by manual pressing, thereby realizing the removal operation of the filter placed in the protective shell 2. At the same time, when the filter is stored in the protective shell 2, a spring 7 is fixed to the bottom inner wall of the protective shell 2. After the bottom of the filter abuts against the spring 7, the gear sleeve 3 is rotated at this time, so that the protruding locking block 5 abuts against the top outer wall of the filter, as shown in FIG. Figure 1 As shown, in order to prevent the gear sleeve 3 from rotating due to the vibration of the car, a fixed shell 8 is fixed on the outer wall of the protective shell 2. The internal structure of the entire fixed shell 8 is as shown in FIG. Figure 4 As shown, a square rod 9 is slidably connected to the inner wall of the fixed shell 8, and a limiting column 11 is fixed at one end of the square rod 9. The limiting column 11 protruding from the fixed shell 8 abuts against the outer wall of the gear sleeve 3 to limit the rotation of the entire gear sleeve 3. If the gear sleeve 3 needs to rotate, the square rod 9 is pressed downward, and the spring 10 installed on one side of the square rod 9 completes the reset of the limiting column 11 in the de-energized state;

[0026] In order to improve the placement stability of the filter in the entire protective shell 2, a spiral rubber support 6 is adhered to the inner wall of the protective shell 2. The filter is then inserted into the protective shell 2, and the spiral rubber support 6 is used to wrap and lock the inner wall of the filter, which plays a shock-absorbing role and prevents the vibration of the vehicle from causing serious impurities on the filter paper surface to fall off and enter the engine to cause serious damage;

[0027] For fixing the lining plate 1 on the entire protective shell 2, as shown in Figure 5 As shown, a locking mechanism 12 is installed on the lining plate 1. The main body of the locking mechanism 12 is a threaded column 121. A pressing column 122 is slidably connected inside the threaded column 121. At the same time, a threaded sleeve 123 is provided on the outer wall of the threaded column 121. The threaded sleeve 123 is threadedly connected to the threaded column 121. When the lining plate 1 is fixed, the pressing column 122 is squeezed so that one end of the pressing column 122 abuts against the abutting column 124. The abutting column 124 squeezes the spring three 125 and retracts the side support block 126 movably connected to the outer wall of the abutting column 124 into the notch. When the threaded column 121 penetrates the lining plate 1 and the vehicle placement frame, the released Under the push of spring three 125, the pressing column 122 and the side support block 126 are unfolded again, and the operator tightens the threaded column 121 to make the side support block 126 press against the inner wall of the placement rack. At this time, the threaded sleeve 123 is rotated on the threaded column 121, and the threaded sleeve 123 cooperates with the side support block 126 to complete the clamping and fixation of the liner 1 on the placement rack. Similarly, after the threaded sleeve 123 is rotated, the pressing column 122 on the threaded column 121 is squeezed to close the side support block 126 again. At this time, the entire locking mechanism 12 can be pulled out from the frame, which is convenient for removing the entire liner 1 from the frame and replacing the filter.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spiral protective cover for fixing a filter, comprising a lining plate (1) and a protective shell (2), wherein the protective shell (2) is fixed to one side of the lining plate (1) by spot welding, and characterized in that: The inner wall of the protective shell (2) is fixed with a spiral rubber support (6) by adhesion, and the bottom inner wall of the protective shell (2) is fixed with a spring 1 (7); A gear sleeve (3) is movably sleeved on the top of the side wall of the protective shell (2), a groove (4) is opened on the inner wall of the gear sleeve (3), a locking block (5) is evenly slidably connected to the inner wall of the gear sleeve (3), and one side of the locking block (5) passes through the groove (4) and is slidably connected to the groove (4).

2. A spiral protective cover for fixing a filter according to claim 1, characterized in that: The outer wall of the protective shell (2) is fixed with a fixed shell (8) by spot welding, the inner wall of the fixed shell (8) is slidably connected to a square rod (9), one side of the square rod (9) passes through the fixed shell (8) and is slidably connected to a through groove on the fixed shell (8).

3. A spiral protective cover for fixing a filter according to claim 2, characterized in that: One end of the square rod (9) is fixed to a limiting column (11) by spot welding, and one end of the limiting column (11) passes through the fixed shell (8) and abuts against the tooth pattern on the gear sleeve (3), and a second spring (10) is installed in the fixed shell (8) and on one side of the square rod (9).

4. A spiral protective cover for fixing a filter according to claim 3, characterized in that: The lining plate (1) is evenly mounted with a locking mechanism (12), the locking mechanism (12) comprising a threaded column (121), a pressing column (122) and a resisting column (124). The lining plate (1) is evenly mounted with a threaded column (121), the threaded column (121) is slidably connected with the pressing column (122), and one end of the pressing column (122) passes through one end of the threaded column (121). A spring three (125) is mounted on the inner wall of the threaded column (121), and one end of the spring three (125) is slidably connected with a resisting column (124), and one end of the resisting column (124) is in contact with the pressing column (122).

5. A spiral protective cover for fixing a filter according to claim 4, characterized in that: The locking mechanism (12) further comprises a threaded sleeve (123) and a side support block (126); the threaded sleeve (123) is sleeved and connected to the outer wall of the threaded column (121); and the side support block (126) is symmetrically rotatably connected in the outer wall notch of the threaded column (121) and located on the support column (124).

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