Locking device for upper cover of filter

Abstract

The utility model relates to a locking device for an upper cover of a filter, which comprises a filter barrel and an upper cover covering the top end of the filter barrel, a plurality of oscillating rods are uniformly distributed and hinged on the outer wall of the filter barrel along the circumference, a cam pressing piece is rotatably mounted at the other end of each oscillating rod, and the cam pressing piece can swing above the upper cover along with the oscillating rods. The upper cover is pressed through the rotation action of the cam pressing piece; in the use process, when the upper cover covers the filter barrel, the swing rod swings upwards to enable the cam pressing piece to be arranged above the upper cover, then the cam pressing piece is rotated to enable the cam pressing piece to be pressed on the upper end face of the upper cover, and therefore the upper cover is locked and fixed, and a screw fixing mode is replaced with the cam pressing piece. The operation is simple, convenient and fast, so that the filter element in the electroplating filter can be conveniently taken out for cleaning or replacing.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a locking device for a filter upper cover. Background Art

[0002] When electroplating the surface of a product, an electroplating filter is often required to circulate and filter the electroplating solution during the electroplating treatment on the surface of the product. However, when the electroplating filter is actually used, the upper cover of the electroplating filter is generally fixed to the top surface of the filter barrel by a number of fixing screws. For example, Chinese patent No. CN218516266U discloses an in-tank filter. During use, when it is necessary to open the barrel cover 5, the handle 406 is turned. The handle 406 and the eye screw 405 are screwed together by a thread. Therefore, under the action of the thread, the handle 406 is separated from the barrel cover 5, and the eye screw 405 is moved out from the inner side of the groove 501, thereby releasing the restriction between the filter barrel 2 and the barrel cover 5, making it convenient for the user to open the barrel cover 5. Therefore, although the structure is simple, it is not convenient to quickly remove the upper cover from the top surface of the filter barrel. At the same time, the subsequent installation of the upper cover is also troublesome, which brings inconvenience to the cleaning or replacement of the filter element in the electroplating filter. Utility Model Content

[0003] The present invention aims to solve one of the problems existing in the existing related technologies to at least a certain extent. To this end, the present invention provides a locking device for the upper cover of a filter, which can facilitate the disassembly and assembly of the upper cover.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A locking device for a filter cover comprises a filter barrel and an upper cover which is fitted on the top of the filter barrel. A plurality of swinging rods are hingedly connected to the outer wall of the filter barrel along the circumference. A cam pressing member is rotatably mounted on the other end of the swinging rod. The cam pressing member can swing above the upper cover following the swinging rod and press the upper cover tightly through the rotation of the cam pressing member.

[0006] In some embodiments, the cam pressing member includes a protrusion and an avoidance portion. When the cam pressing member rotates, it can press the upper cover through the protrusion or create a gap between it and the upper cover through the avoidance portion.

[0007] In some embodiments, a positioning plane for pressing the upper cover is further provided on the outer wall of the raised portion.

[0008] In some embodiments, a handle portion is further extended outwardly from the cam pressing member.

[0009] In some embodiments, a plurality of gaskets are slidably sleeved on the swing rod.

[0010] In some embodiments, a limiting flange is further provided outside the swing lever, and the gasket is provided between the limiting flange and the cam pressing member.

[0011] In some embodiments, a notch for the swing rod to swing into is provided on the edge of the upper cover.

[0012] In some embodiments, an ear seat is provided on the outer wall of the filter barrel, and the swing arm is hinged to the ear seat through a pin.

[0013] In some embodiments, an annular groove is provided on the outer wall of the filter barrel, a fixing ring is fixedly sleeved in the annular groove, and the ear seat is fixed on the fixing ring.

[0014] In some embodiments, three groups of swing rods are evenly distributed along the circumference of the outer wall of the filter barrel.

[0015] Compared with the prior art, the beneficial effect of the utility model is that when in use, when the upper cover is closed on the filter barrel, the swing rod swings upward to place the cam pressing part above the upper cover, and then the cam pressing part is rotated to press the cam pressing part against the upper end surface of the upper cover, thereby locking and fixing the upper cover, and then the cam pressing part replaces the screw fixing method, the operation is simple, convenient and fast, and it is convenient to remove the filter element in the electroplating filter for cleaning or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of the cam pressing member of the utility model pressing the upper cover;

[0017] Figure 2 For this utility model Figure 1 A magnified schematic diagram of point A;

[0018] Figure 3 This is a three-dimensional schematic diagram of the cam pressing member of the utility model when the upper cover is loosened;

[0019] Figure 4 For this utility model Figure 3 A magnified schematic diagram of point B;

[0020] Figure 5 This is a schematic structural diagram of the locking device of the present utility model. DETAILED DESCRIPTION

[0021] The following detailed description provides various embodiments or examples for implementing the present invention. These are, of course, merely examples and are not intended to be limiting. Furthermore, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. This repetition is for simplicity and clarity in describing the present invention and does not imply a specific relationship between the various embodiments and / or configurations discussed.

[0022] like Figure 1-Figure 5 The locking device for the upper cover of a filter shown in the figure includes a filter barrel 1 and an upper cover 2 covering the top of the filter barrel 1. Several swing rods 3 are hinged evenly distributed along the circumference of the outer wall of the filter barrel 1. Preferably, three swing rods 3 are provided. Of course, the number of swing rods 3 can be set according to actual conditions.

[0023] A cam pressing member 4 is rotatably mounted on the other end of the swing rod 3 . The cam pressing member 4 can swing above the upper cover 2 following the swing rod 3 and press the upper cover 2 by the rotation of the cam pressing member 4 .

[0024] When the upper cover 2 is closed on the filter barrel 1, the swing rod 3 is swung upward to place the cam pressing member 4 above the upper cover 2, and then the cam pressing member 4 is rotated to press the cam pressing member 4 against the upper end surface of the upper cover 2, thereby locking and fixing the upper cover 2. The cam pressing member 4 replaces the screw fixing method, which is simple, convenient and fast to operate, and makes it convenient to remove the filter element in the electroplating filter for cleaning or replacement.

[0025] See also Figure 2 、 Figure 4 As shown, the cam pressing member 4 includes a protrusion 21 and an avoidance portion 22. When the cam pressing member 4 rotates, it can press the upper cover 2 through the protrusion 21, or create a gap with the upper cover 2 through the avoidance portion 22. When there is a gap between the avoidance portion 22 and the upper cover 2, the swing rod 3 can swing downward to separate the cam pressing member 4 from the upper cover 2, and the upper cover 2 can be opened.

[0026] In order to improve the stability when the raised portion 21 presses the upper cover 2, a positioning plane 31 for pressing the upper cover 2 is further provided on the outer wall of the raised portion 21, so that the upper cover is pressed by the positioning plane 31 to avoid accidental movement of the cam pressing member 4, thereby improving the stability during pressing.

[0027] In order to facilitate driving the cam pressing member 4 to rotate, a handle portion 41 is further extended outwardly from the cam pressing member 4 . The handle portion 41 and the cam pressing member 4 are integrally formed of iron material.

[0028] Furthermore, a plurality of gaskets 51 are slidably sleeved on the swing rod 3. When the swing rod 3 drives the cam pressing member 4 to swing up and down, the gasket 51 is located between the upper cover 2 and the cam pressing member 4. The cam pressing member 4 then applies pressure to the gasket 51, and finally the gasket 51 is pressed on the end face of the upper cover 2, thereby increasing the area pressed with the upper cover 2. At the same time, the number of gaskets 51 can be adjusted according to the situation after pressing to ensure that the upper cover 2 can be firmly pressed.

[0029] See also Figure 5 As shown, a limiting flange 61 is further provided outside the swing lever 3, and the gasket 51 is provided between the limiting flange 61 and the cam pressing member 4, thereby preventing the gasket 51 from sliding over a large range, thereby improving convenience during operation.

[0030] See also Figures 1-4 As shown, a slot 71 for the swing rod 3 to swing into is provided on the edge of the upper cover 2, so that the swing rod 3 can be designed as a straight rod, which is more convenient to produce. When it swings upward, it swings directly into the slot 71. At this time, the swing rod 3 is in a vertical state, and the cam pressing member 4 is also located above the upper cover 2.

[0031] See also Figure 1-Figure 3 As shown, an ear seat 81 is provided on the outer wall of the filter barrel 1 , and the swing rod 3 is hinged to the ear seat 81 through a pin 82 .

[0032] Furthermore, an annular groove is provided on the outer wall of the filter barrel 1 , a fixing ring 92 is fixedly sleeved in the annular groove, and the ear seat 81 is fixed on the fixing ring 92 .

[0033] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above in conjunction with the accompanying drawings. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking device for a filter cover, comprising a filter barrel (1) and a cover (2) covering the top of the filter barrel (1), characterized in that: A plurality of swinging rods (3) are hingedly connected to the outer wall of the filter barrel (1) along the circumference, and a cam pressing member (4) is rotatably mounted on the other end of the swinging rod (3). The cam pressing member (4) can swing above the upper cover (2) following the swinging rod (3) and press the upper cover (2) by the rotation of the cam pressing member (4).

2. A locking device for a filter cover according to claim 1, characterized in that: The cam pressing member (4) includes a protruding portion (21) and an avoiding portion (22). When the cam pressing member (4) rotates, it can press the upper cover (2) through the protruding portion (21) or generate a gap with the upper cover (2) through the avoiding portion (22).

3. The locking device for the filter cover according to claim 2, characterized in that: A positioning plane (31) for pressing the upper cover (2) is also provided on the outer wall of the raised portion (21).

4. The locking device for the filter cover according to claim 2, characterized in that: A handle portion (41) is also provided on the cam pressing member (4) extending outward.

5. The locking device for the filter cover according to claim 1, characterized in that: A plurality of gaskets (51) are slidably sleeved on the swing rod (3).

6. The locking device for the filter cover according to claim 5, characterized in that: A limiting flange (61) is also provided outside the swing rod (3), and the gasket (51) is provided between the limiting flange (61) and the cam pressing member (4).

7. The locking device for a filter cover according to claim 1, characterized in that: A notch (71) for the swing rod (3) to swing into is provided on the edge of the upper cover (2).

8. The locking device for a filter cover according to claim 1, characterized in that: An ear seat (81) is provided on the outer wall of the filter barrel (1), and the swing rod (3) is hinged to the ear seat (81) via a latch (82).

9. The locking device for the filter cover according to claim 8, characterized in that: An annular groove is provided on the outer wall of the filter barrel (1), a fixing ring (92) is fixedly sleeved in the annular groove, and the ear seat (81) is fixedly provided on the fixing ring (92).

10. The locking device for a filter cover according to claim 1, characterized in that: The outer wall of the filter barrel (1) is evenly distributed along the circumference with three groups of swing rods (3).

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