Filter with filter element convenient to replace

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a filter with a filter element convenient to replace, which comprises a filter bottom shell and a filter top cover, a locking block is fixed on the bottom surface of the filter top cover, a locking groove is arranged on the locking block, the filter further comprises a locking mechanism, and the locking mechanism comprises an L-shaped limiting block and a locking groove arranged on the L-shaped limiting block. A mounting groove is formed in the top end of the filter bottom shell, the L-shaped limiting block is rotatably arranged in the mounting groove, and the bottom surface of the L-shaped limiting block and the inner bottom surface of the locking groove are matched inclined surfaces; the control mechanism is connected to the L-shaped limiting block in a driving manner; according to the filter top cover, the L-shaped limiting block is controlled by the control mechanism to turn over, so that the free end of the L-shaped limiting block is embedded into the locking groove for locking, the assembly is convenient and fast, the filter top cover is also easy to disassemble so as to clean or replace the filter element, the effect of pulling down the locking block is generated through the matching of the inclined surface, and the assembly stability of the filter top cover is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and in particular relates to a filter with a filter element that is easy to replace. Background Art

[0002] The filter is an indispensable device on the pipeline conveying the medium. It is usually installed on the inlet end of the pressure reducing valve, pressure relief valve, water level valve and other equipment of Fanggong filter. The filter element is an important part of the filter and plays the function of filtering the medium. The filter element is fixed in the metal frame.

[0003] The filter element usually needs to be cleaned or replaced regularly, and most existing filters are fixed by welding, which means that the entire filter needs to be replaced during replacement, which is costly and inconvenient to clean or replace the filter element individually.

[0004] Based on the above technical problems, it was retrieved that some filters with easy filter element replacement exist in the relevant public patents. For example, in the prior art, the Chinese utility model patent with authorization announcement number CN220328106U discloses a "quick-change filter element filter", which includes a bottom shell and an upper cover installed on the bottom shell; its characteristic is that it also includes a connecting structure for installing and connecting the bottom shell and the upper cover, and the connecting structure includes a plurality of arc-shaped locking strips movably installed on the upper cover, corresponding clamping holes arranged on the upper cover and the bottom shell, and a clamping head arranged on the arc-shaped locking strip and adapted to the clamping holes; the clamping head includes a supporting strip arranged on the arc-shaped locking strip and a clamping block arranged on the supporting strip, which is convenient for assembly.

[0005] The filters in the prior art including those mentioned above are easy to assemble and disassemble the filter element quickly, but the installation stability is insufficient because the dynamic force of the medium flow will cause the bottom shell to shake, which will not only easily cause the bottom shell to fall off, but also reduce the sealing of the connection.

[0006] In order to solve the above problems, the present application proposes a filter that is easy to replace the filter element. Utility Model Content

[0007] In order to solve the above problems existing in the prior art, the utility model provides a filter with an easy-to-replace filter element, which has the characteristics of convenient disassembly and assembly, high stability and high sealing performance.

[0008] To achieve the above object, the utility model provides the following technical solution: a filter that is easy to replace a filter element, comprising a filter bottom shell and a filter top cover arranged at the top of the filter bottom shell, a plurality of groups of locking blocks distributed at equal intervals along the circumferential direction are fixed on the bottom surface of the filter top cover, and the same group of locking blocks has two symmetrically distributed locking grooves, and also includes a locking mechanism, and the locking mechanism includes:

[0009] An L-shaped limit block, having a mounting groove at the top end of the filter bottom shell, the L-shaped limit block being rotatably disposed in the mounting groove, and the free end of the L-shaped limit block being embedded in the locking groove, the bottom surface of the L-shaped limit block and the inner bottom surface of the locking groove being matching inclined surfaces;

[0010] A control mechanism is drivably connected to the L-shaped limit block and is used to control the rotation of the L-shaped limit block.

[0011] As a preferred technical solution of the utility model, the locking mechanism also includes:

[0012] Positioning plates, two groups of positioning plates are symmetrically fixed in the installation groove, and there are two positioning plates symmetrically distributed in the same group, and the L-shaped limit block is rotatably installed between the two positioning plates in the same group using the installation shaft.

[0013] As a preferred technical solution of the utility model, the control mechanism includes:

[0014] A movable plate, the movable plate is located in the mounting groove and has a threaded hole in the movable plate;

[0015] A threaded rod, the threaded rod is rotatably mounted on the filter bottom shell, and the threaded rod is screwed into the threaded hole by thread engagement;

[0016] A mounting ear, wherein the mounting ear is fixed on the L-shaped limit block, and a fixing rod is fixed on the mounting ear;

[0017] A control block is fixed on the moving plate and has an oblique waist hole for the fixing rod to pass through.

[0018] As a preferred technical solution of the utility model, two symmetrically distributed mounting ears are fixed on the L-shaped limit block, and the fixing rod is fixed between the two mounting ears.

[0019] As a preferred technical solution of the present utility model, the distance between the two positioning plates in the same group is equal to the vertical height of the L-shaped limit block.

[0020] As a preferred technical solution of the utility model, it also includes:

[0021] A knob, one end of the threaded rod penetrates and extends to the outside of the filter bottom shell, and the knob is fixed on the protruding end of the threaded rod.

[0022] As a preferred technical solution of the utility model, it also includes:

[0023] A rubber sealing ring is fixed on the contact surface between the filter bottom shell and the filter top cover.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] In the utility model, the L-shaped limit block is flipped by controlling the control mechanism so that the free end of the L-shaped limit block is embedded in the locking groove for locking. The assembly is convenient and the filter top cover is also easy to disassemble to clean or replace the filter element. The cooperation of the inclined surface produces the effect of pulling down the locking block, thereby further improving the stability of the filter top cover assembly.

[0026] Other additional advantages and beneficial effects of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a structural schematic diagram of the utility model;

[0029] Figure 2 This is a schematic diagram of the axonometric structure of the locking mechanism in the utility model;

[0030] Figure 3 For this utility model Figure 2 A in the figure is an enlarged structural diagram.

[0031] In the figure: 1. filter bottom shell; 11. mounting groove; 2. filter top cover; 3. locking block; 31. locking groove; 4. locking mechanism; 41. L-shaped limit block; 42. control mechanism; 421. moving plate; 4211. threaded hole; 422. threaded rod; 4221. knob; 423. mounting ear; 424. fixing rod; 425. control block; 4251. oblique waist hole; 43. positioning plate; 44. mounting shaft; 5. rubber sealing ring. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figure 1-Figure 3The utility model provides the following technical solutions: a filter that is easy to replace a filter element, comprising a filter bottom shell 1 and a filter top cover 2 arranged at the top of the filter bottom shell 1, a plurality of groups of locking blocks 3 distributed at equal intervals along the circumferential direction are fixed to the bottom surface of the filter top cover 2, and there are two locking blocks 3 in the same group that are symmetrically distributed, a locking groove 31 is provided on the locking block 3, and a locking mechanism 4 is also included, and the locking mechanism 4 includes: an L-shaped limit block 41 and a control mechanism 42.

[0034] Further, by Figure 1 and Figure 2 As shown, in this embodiment, a mounting groove 11 is provided at the top of the filter bottom shell 1, an L-shaped stopper 41 is rotatably arranged in the mounting groove 11, and a free end of the L-shaped stopper 41 is embedded in the locking groove 31, and the bottom surface of the L-shaped stopper 41 and the inner bottom surface of the locking groove 31 are matching inclined surfaces, and a control mechanism 42 is drivably connected to the L-shaped stopper 41 for controlling the rotation of the L-shaped stopper 41. After adopting the above scheme, when in use, the filter element is first assembled on the filter bottom shell by conventional means. The filter top cover 2 is assembled on the top of the filter bottom shell 1, and the locking block 3 is embedded in the installation groove 11. The L-shaped limit block 41 is flipped by the control mechanism 42, so that the free end of the L-shaped limit block 41 is embedded in the locking groove 31 for locking. The assembly is convenient, and it is also easy to disassemble the filter top cover 2 to clean or replace the filter element. Through the cooperation of the inclined surface, the effect of pulling down the locking block 3 is generated, thereby further improving the stability of the assembly of the filter top cover 2.

[0035] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, the locking mechanism 4 also includes: positioning plates 43, two groups of positioning plates 43 are symmetrically fixed in the installation groove 11, and there are two symmetrically distributed positioning plates 43 in the same group, and the L-shaped limit block 41 is rotatably installed between the two positioning plates 43 in the same group using the installation shaft 44. The positioning plate 43 is used to install the L-shaped limit block 41, and the L-shaped limit block 41 is also used to position the plug-in position of the locking block 3.

[0036] Optionally, by Figure 1-Figure 3As shown, in the present embodiment, the control mechanism 42 comprises: a movable plate 421, a threaded rod 422, a mounting ear 423 and a control block 425. The movable plate 421 is located in the mounting groove 11 and has a threaded hole 4211 in the movable plate 421. The threaded rod 422 is rotatably mounted on the filter bottom shell 1, and the threaded rod 422 is screwed into the threaded hole 4211 by threaded screwing. The mounting ear 423 is fixed on the L-shaped limit block 41, and a fixing rod 424 is fixed on the mounting ear 423. The control block 425 is fixed on the movable plate 421, and has an oblique waist hole 4251 on the control block 425 for the fixing rod 424 to pass through. After adopting the above scheme, when in use, the threaded rod 422 is rotated, the movable plate 421 moves under the action of the threaded screwing, and at the same time drives the control block 425 to move. Under the cooperation of the oblique waist hole 4251 and the fixing rod 424, the control block 425 can drive the L-shaped limit block 41 to flip when it moves.

[0037] It should be noted that, in the present invention, the threaded rod 422 includes but is not limited to being rotatably mounted on the filter bottom shell 1 using a bearing.

[0038] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, two symmetrically distributed mounting ears 423 are fixed on the L-shaped limit block 41, and the fixing rod 424 is fixed between the two mounting ears 423 to ensure the stability of the fixing rod 424 and prevent the fixing rod 424 from tilting, thereby ensuring that the control block 425 can reliably drive the L-shaped limit block 41 to flip when it moves.

[0039] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, the distance between two positioning plates 43 in the same group is equal to the vertical height of the L-shaped limit block 41, which ensures the stability of the L-shaped limit block 41 and prevents the L-shaped limit block 41 from shaking.

[0040] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, it also includes: a knob 4221, one end of the threaded rod 422 passes through and extends to the outside of the filter bottom shell 1, and the knob 4221 is fixed to the protruding end of the threaded rod 422. The threaded rod 422 is easy to rotate by the set knob 4221.

[0041] Preferably, by Figure 1 As shown, in this embodiment, it also includes: a rubber sealing ring 5, which is fixed on the contact surface between the filter bottom shell 1 and the filter top cover 2. After the L-shaped limit block 41 is locked with the locking block 3, the rubber sealing ring 5 shrinks to improve the sealing of the assembly between the filter top cover 2 and the filter bottom shell 1 to avoid liquid leakage.

[0042] Components not described in detail herein are prior art.

[0043] Working principle and use process of the utility model: When using the filter of the utility model, firstly, the filter element is assembled in the filter bottom shell 1 by conventional means, such as by clamping or bolting, and then the filter top cover 2 is assembled on the top of the filter bottom shell 1, so that the locking block 3 is embedded in the installation groove 11;

[0044] By rotating the threaded rod 422, the movable plate 421 moves under the action of the thread rotation, and at the same time drives the control block 425 to move. Under the cooperation of the inclined waist hole 4251 and the fixed rod 424, the control block 425 can drive the L-shaped limit block 41 to flip when it moves, so that the free end of the L-shaped limit block 41 is embedded in the locking groove 31 for locking. The assembly is convenient, and it is also easy to disassemble the filter top cover 2 to clean or replace the filter element. Through the cooperation of the inclined surface, the effect of pulling down the locking block 3 is produced, which further improves the stability of the assembly of the filter top cover 2.

[0045] 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 for facilitating replacement of a filter element, comprising a filter bottom shell (1) and a filter top cover (2) arranged at the top of the filter bottom shell (1), a plurality of groups of locking blocks (3) arranged at equal intervals along the circumferential direction are fixed on the bottom surface of the filter top cover (2), and two locking blocks (3) in the same group are symmetrically arranged, and a locking groove (31) is provided on the locking block (3), characterized in that: The invention also comprises a locking mechanism (4), wherein the locking mechanism (4) comprises: An L-shaped limit block (41) is provided with a mounting groove (11) at the top end of the filter bottom shell (1), the L-shaped limit block (41) is rotatably arranged in the mounting groove (11), and the free end of the L-shaped limit block (41) is embedded in the locking groove (31), and the bottom surface of the L-shaped limit block (41) and the inner bottom surface of the locking groove (31) are matching inclined surfaces; A control mechanism (42), wherein the control mechanism (42) is drivably connected to the L-shaped limit block (41) and is used to control the rotation of the L-shaped limit block (41).

2. A filter for easy replacement of filter element according to claim 1, characterized in that: The locking mechanism (4) further comprises: Positioning plates (43), two groups of the positioning plates (43) are symmetrically fixed in the installation groove (11), and there are two symmetrically distributed positioning plates (43) in the same group, and the L-shaped limit block (41) is rotatably installed between the two positioning plates (43) in the same group using the installation shaft (44).

3. The filter for easy replacement of filter element according to claim 1, characterized in that: The control mechanism (42) comprises: A movable plate (421), the movable plate (421) being located in the mounting groove (11), and having a threaded hole (4211) in the movable plate (421); a threaded rod (422), the threaded rod (422) being rotatably mounted on the filter bottom shell (1), and the threaded rod (422) being screwed into the threaded hole (4211) by means of a threaded screwing method; A mounting ear (423), wherein the mounting ear (423) is fixed on the L-shaped limiting block (41), and a fixing rod (424) is fixed on the mounting ear (423); A control block (425) is fixed on the movable plate (421), and has an oblique waist hole (4251) for the fixing rod (424) to pass through.

4. A filter for easy replacement of filter element according to claim 3, characterized in that: Two symmetrically distributed mounting ears (423) are fixed on the L-shaped limiting block (41), and the fixing rod (424) is fixed between the two mounting ears (423).

5. The filter for easy replacement of filter element according to claim 2, characterized in that: The distance between the two positioning plates (43) in the same group is equal to the vertical height of the L-shaped limiting block (41).

6. The filter for easily replacing a filter element according to claim 3, characterized in that: Also includes: A knob (4221), one end of the threaded rod (422) penetrates and extends to the outside of the filter bottom shell (1), and the knob (4221) is fixed on the protruding end of the threaded rod (422).

7. The filter for easy replacement of filter element according to claim 1, characterized in that: Also includes: A rubber sealing ring (5) is fixed on the contact surface between the filter bottom shell (1) and the filter top cover (2).

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