A filter cartridge

Abstract

This utility model relates to the field of filter element technology and discloses a filter element, including a filter element shell. Both ends of the filter element shell are snapped with mounting plates. The outer wall of the mounting plate is provided with a mounting mechanism, and the inner wall of the mounting plate is provided with a fixing mechanism. The mounting mechanism includes a trapezoidal groove formed on the outer wall of the mounting plate. A sealing ring is snapped into the inside of the trapezoidal groove, and a fixing component for fixation is snapped into the outside of the mounting plate. In this utility model, a trapezoidal groove is formed on the mounting plate at the end of the filter element shell. The sealing ring is snapped and fixed within the trapezoidal groove, and the outer wall of the sealing ring abuts against the inner wall of the trapezoidal groove. The trapezoidal groove positions the sealing ring, reducing the possibility of the sealing ring moving and thus reducing the possibility of the sealing ring loosening. This solves the problem that the sealing ring easily rotates on the inner wall of the mounting groove, making it prone to loosening.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter element. Background Technology

[0002] The application of this filter element is not limited to injection molding machines, but is also widely used in hydraulic and lubrication systems. The cleanliness of hydraulic oil and lubricating fluid is crucial for system operation. The hydraulic system transmits pressure and power through hydraulic oil, driving the various components of the injection molding machine to achieve precise movement. However, hydraulic oil inevitably becomes contaminated during use. Contaminants may originate from wear particles and metal shavings inside the system, or from external dust and impurities. If these contaminants are not removed in time, they will cause accelerated wear and jamming of hydraulic components such as oil pumps and valves, thereby reducing the control accuracy and reliability of the system, and even causing system failure, affecting the normal production of the injection molding machine.

[0003] Existing filter elements have a mounting groove on the mounting plate at the end of the filter element. This mounting groove provides a suitable installation space for the subsequent installation of the sealing ring. The inner wall of the mounting groove is designed to be arc-shaped to facilitate the embedding of the sealing ring. When the sealing ring is snapped and fixed in the mounting groove, the sealing ring is stably installed in the mounting groove by snapping, thereby fixing the sealing ring.

[0004] In the current technical field, we have found that the sealing ring of this design often rotates on the inner wall of the mounting groove during practical application. This rotation leads to a decrease in the stability of the sealing ring and makes it prone to loosening, which needs to be improved. Therefore, a filter element is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a filter element that aims to improve the problem in the prior art where the sealing ring easily rotates on the inner wall of the mounting groove, making the sealing ring prone to loosening.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a filter element, comprising a filter element shell, both ends of which are snapped with mounting discs, an installation mechanism is provided on the outer wall of the mounting disc, a fixing mechanism is provided on the inner wall of the mounting disc, the installation mechanism includes a trapezoidal groove, the trapezoidal groove is formed on the outer wall of the mounting disc, a sealing ring is snapped into the inside of the trapezoidal groove, and a fixing component for fixing is snapped into the outside of the mounting disc;

[0007] The above technical solution involves inserting the rubber sealing ring into the trapezoidal groove on the outer wall of the mounting plate. The special shape of the trapezoidal groove facilitates the positioning and installation of the sealing ring and provides support to prevent displacement when subjected to external forces.

[0008] As a further description of the above technical solution:

[0009] The fixing mechanism includes a T-shaped groove, which is formed on the inner wall of the mounting plate, and the ends of the filter element housing are all provided with protrusions.

[0010] The above technical solution involves aligning the protrusion of the filter element housing with the T-slot of the mounting plate and inserting it into place. The T-slot limits the position of the protrusion, and its inner wall supports the protrusion during use, preventing the filter element housing from moving out and achieving a firm connection between the two.

[0011] As a further description of the above technical solution:

[0012] The fixing component includes a mounting slot, the interior of which is snapped into the exterior of the mounting plate, and a latch is rotatably connected to the exterior of the mounting slot.

[0013] The above technical solution limits the installation plate by the inner wall of the installation groove, and further strengthens the connection between the installation plate and the installation groove by the locking action of the latch.

[0014] As a further description of the above technical solution:

[0015] The latch is fixedly connected to a locking post on the side away from the mounting groove, and the mounting groove is provided with a fixing groove on the side away from the latch.

[0016] The above technical solution works as follows: when the latch rotates to the locked position, the locking pin engages in the fixing groove, and the latch is prevented from rotating in the opposite direction by the cooperation between the locking pin and the fixing groove.

[0017] As a further description of the above technical solution:

[0018] The mounting slot, on the side away from the mounting plate, is fixedly connected to a connecting pipe, and a protective shell is fixedly connected to the outside of the connecting pipe.

[0019] The above technical solution involves fixing one end of the connecting tube to the mounting groove and the other end to the protective shell, thus connecting the mounting plate and the protective shell into a whole.

[0020] As a further description of the above technical solution:

[0021] The mounting groove at the top of the filter element housing is fixedly connected to the top of the inner wall of the protective shell, and a conveying pipe is fixedly connected to the top of the protective shell;

[0022] The above technical solution involves connecting the protective shell to the mounting groove via a connecting pipe, enclosing the filter element within it for protection, and allowing the filtered material to enter the protective shell through a conveying pipe, where it is filtered by the filter element and then discharged.

[0023] As a further description of the above technical solution:

[0024] The filter element is fixedly connected inside the filter element housing. The inner wall of the T-slot is engaged with the outer wall of the convex groove. Through the convex groove and the T-slot, the end of the filter element housing is engaged with the inner wall of the mounting plate.

[0025] Through the above technical solution: the material to be filtered enters the filter element inside the protective shell, and after being filtered by the filter element, the clean filter screen is discharged from the filter element shell.

[0026] As a further description of the above technical solution:

[0027] The outer wall of the sealing ring abuts against the inner wall of the trapezoidal groove, and the sealing ring is positioned by the trapezoidal groove when it is engaged through the trapezoidal groove and the mounting plate.

[0028] Through the above technical solution: when the mounting plate is connected to the mounting groove and other components, the sealing ring relies on elastic deformation to fill the gap, enhance the seal, and prevent unfiltered materials from entering.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, a trapezoidal groove is provided on the mounting plate at the end of the filter element shell. The sealing ring is snapped and fixed in the trapezoidal groove. The outer wall of the sealing ring abuts against the inner wall of the trapezoidal groove. The trapezoidal groove positions the sealing ring, reducing the possibility of the sealing ring moving, thereby reducing the possibility of the sealing ring loosening. This solves the problem that the sealing ring is prone to rotating on the inner wall of the mounting groove, making the sealing ring easy to loosen.

[0031] 2. In this utility model, the T-shaped groove opened on the inner wall of the mounting plate allows the protrusion at the end of the filter element shell to be engaged and fixed with the inner wall of the T-shaped groove, thereby making the filter element frame more stable under the engagement and positioning of the inner wall of the T-shaped groove. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of a filter element proposed in this utility model;

[0033] Figure 2 This is a schematic diagram of the structure of a protective shell for a filter element proposed in this utility model;

[0034] Figure 3 This is a schematic diagram of the structure of the filter cartridge shell of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of a connecting tube for a filter element proposed in this utility model;

[0036] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0037] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0038] Legend:

[0039] 1. Filter element housing; 2. Mounting plate; 3. Mounting mechanism; 301. Trapezoidal groove; 302. Sealing ring; 303. Mounting groove; 304. Locking buckle; 305. Locking post; 306. Fixing groove; 307. Connecting pipe; 4. Fixing mechanism; 401. T-slot; 402. Raised groove; 403. Filter element; 5. Protective shell; 6. Delivery pipe. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Reference Figure 1 and Figure 5 The present invention provides an embodiment of a filter element, comprising a filter element housing 1, which is the main frame of the entire filter element. Mounting discs 2 are snapped onto both ends of the filter element housing 1. The mounting discs 2 are installed at both ends of the filter element housing 1 and are used to connect the filter element housing 1 to the pipeline of the injection molding machine hydraulic system. An installation mechanism 3 is provided on the outer wall of the mounting disc 2, and a fixing mechanism 4 is provided on the inner wall of the mounting disc 2. The installation mechanism 3 includes a trapezoidal groove 301, which is used to position and fix a sealing ring 302 to prevent leakage of hydraulic oil or lubricant. The trapezoidal groove 301 is formed on the outer wall of the mounting disc 2, and a sealing ring 302 is snapped onto the inside of the trapezoidal groove 301. The sealing ring 302 is used to enhance the sealing performance of the filter element and adapt to the high temperature and high pressure conditions of the hydraulic oil. A fixing component for fixing is snapped onto the outside of the mounting disc 2.

[0042] Specifically, the rubber sealing ring 302 is inserted into the trapezoidal groove 301. The unique shape of the trapezoidal groove 301 can accurately position the sealing ring 302 during insertion, ensuring that it is installed in the designated position. During use, if it is affected by external force, the side wall of the trapezoidal groove 301 will support the sealing ring 302, effectively preventing the sealing ring 302 from shifting.

[0043] Reference Figure 2 , Figure 4 and Figure 6The fixing component includes a mounting groove 303, which is internally engaged with the external part of the mounting plate 2. The mounting groove 303 is used to engage the mounting plate 2. A latch 304 is rotatably connected to the external part of the mounting groove 303 to lock the connection between the mounting plate 2 and the mounting groove 303. A locking post 305 is fixedly connected to the external part of the latch 304 on the side away from the mounting groove 303 for connection and fixation. A fixing groove 306 is formed on the external part of the mounting groove 303 on the side away from the latch 304 to cooperate with the locking post 305. A connecting pipe 307 is fixedly connected to one side of the filter element. A protective shell 5 is fixedly connected to the outside of the connecting pipe 307. The protective shell 5 is used to protect the filter element. The connecting pipe 307 is used to connect the mounting groove 303 and the protective shell 5. The mounting groove 303 at the top of the filter element shell 1 is fixedly connected to the top of the inner wall of the protective shell 5. A conveying pipe 6 is fixedly connected to the top of the protective shell 5. The conveying pipe 6 is used to guide the material to be filtered into and out of the filter element. The outer wall of the sealing ring 302 abuts against the inner wall of the trapezoidal groove 301. Through the trapezoidal groove 301 and the mounting plate 2, the sealing ring 302 is positioned by the trapezoidal groove 301 when it is snapped together.

[0044] Specifically, the inner wall of the mounting groove 303 can restrict the mounting plate 2, so that the mounting plate 2 is stably in the predetermined position. After the mounting plate 2 is inserted into the mounting groove 303, the locking buckle 304 is rotated to the locked state. At this time, the locking pin 305 on the locking buckle 304 will be embedded in the fixing groove 306 on the mounting groove 303 to prevent the mounting plate 2 from falling out of the mounting groove 303 during use. The connecting pipe 307 can combine the mounting groove 303 and the protective shell 5 into an integral structure. The connecting pipe 307 acts as a channel for the flow of filtered material, so that the material to be filtered can smoothly enter the mounting plate 2 and the interior of the filter element shell 1 from the protective shell 5.

[0045] Reference Figure 1 , Figure 3 and Figure 5 The fixing mechanism 4 includes a T-slot 401, which is formed on the inner wall of the mounting plate 2. The T-slot 401 is used to engage with the protrusion 402 at the end of the filter element housing 1. The end of the filter element housing 1 is provided with a protrusion 402, which is used to cooperate with the T-slot 401 on the inner wall of the mounting plate 2. A filter element 403 is fixedly connected inside the filter element housing 1. The filter element 403 is used for filtration. The inner wall of the T-slot 401 is engaged with the outer wall of the protrusion 402. Through the protrusion 402 and the T-slot 401, the end of the filter element housing 1 is engaged with the inner wall of the mounting plate 2.

[0046] Specifically, firstly, the protrusion 402 on the filter element housing 1 should be precisely aligned with the T-slot 401 on the mounting plate 2. Then, the filter element housing 1 should be smoothly inserted into the mounting plate 2. The protrusion 402 will smoothly fit into the T-slot 401. In actual use, the inner wall of the T-slot 401 will provide stable support for the protrusion 402, thereby ensuring that the filter element housing 1 is securely installed in the mounting plate 2. This effectively prevents the filter element housing 1 from moving or coming out of the mounting plate 2, thus achieving a tight and firm connection between the filter element housing 1 and the mounting plate 2.

[0047] Working principle: The filter element housing 1 serves as the main frame, with mounting plates 2 snapped into both ends. The trapezoidal groove 301 on the outer wall of the mounting plate 2 snaps into the sealing ring 302. The trapezoidal structure enables the positioning and support of the sealing ring 302. During installation, the rubber sealing ring 302 is embedded into the trapezoidal groove 301, with its outer wall abutting against the inner wall of the groove. When subjected to pressure from hydraulic oil or lubricating fluid, the side wall of the trapezoidal groove 301 limits the sealing ring 302, preventing displacement. The fixing components on the outside of the mounting plate 2 snap into the mounting plate 2 through the mounting groove 303. Rotating the locking buckle 304 causes the locking post 305 to embed into the fixing groove 306, locking the connection between the mounting plate 2 and the mounting groove 303. The connecting pipe 307 fixes the mounting groove 303 to the protective shell 5. The delivery pipe 6 guides the hydraulic oil or lubricating fluid to be filtered from the protective shell 5 into the mounting plate 2. At this time, the sealing ring 302 remains sealed under high pressure conditions, preventing liquid leakage.

[0048] The T-groove 401 on the inner wall of the mounting plate 2 mates with the protrusion 402 at the end of the filter element housing 1. During installation, the protrusion 402 is aligned with the T-groove 401 and inserted, so that the filter element housing 1 is snapped into the inner wall of the mounting plate 2. The inner wall of the T-groove 401 provides support for the protrusion 402 to prevent the filter element housing 1 from moving. The filter element 403 inside the filter element housing 1 filters the incoming hydraulic oil or lubricating fluid, removing impurities such as metal particles and colloids. The liquid enters the protective shell 5 through the delivery pipe 6, flows into the mounting groove 303 through the connecting pipe 307, and then enters the filter element housing 1 through the mounting plate 2. After passing through the filter element 403, it flows out from the other end of the mounting plate 2, the mounting groove 303, and the connecting pipe 307, completing the filtration cycle.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter element, comprising a filter element housing (1), characterized in that: The filter cartridge housing (1) is fitted with mounting discs (2) at both ends. The outer wall of the mounting disc (2) is provided with a mounting mechanism (3), and the inner wall of the mounting disc (2) is provided with a fixing mechanism (4). The mounting mechanism (3) includes a trapezoidal groove (301) which is formed on the outer wall of the mounting plate (2). A sealing ring (302) is snapped into the inside of the trapezoidal groove (301), and a fixing component for fixing is snapped into the outside of the mounting plate (2).

2. A filter element according to claim 1, characterized in that: The fixing mechanism (4) includes a T-shaped groove (401), which is formed on the inner wall of the mounting plate (2), and the ends of the filter element housing (1) are provided with protrusions (402).

3. A filter element according to claim 1, characterized in that: The fixing component includes a mounting slot (303), the interior of which is snapped into the exterior of the mounting plate (2), and a latch (304) is rotatably connected to the exterior of the mounting slot (303).

4. A filter element according to claim 3, characterized in that: The latch (304) is fixedly connected to a locking post (305) on the side away from the mounting groove (303), and the mounting groove (303) is provided with a fixing groove (306) on the side away from the latch (304).

5. A filter element according to claim 4, characterized in that: The mounting slot (303) is fixedly connected to a connecting pipe (307) on the side away from the mounting plate (2), and a protective shell (5) is fixedly connected to the outside of the connecting pipe (307).

6. A filter element according to claim 5, characterized in that: The mounting groove (303) at the top of the filter cartridge housing (1) is fixedly connected to the top of the inner wall of the protective shell (5), and a delivery pipe (6) is fixedly connected to the top of the protective shell (5).

7. A filter element according to claim 2, characterized in that: The filter element (403) is fixedly connected inside the filter element housing (1). The inner wall of the T-groove (401) is engaged with the outer wall of the convex groove (402). Through the convex groove (402) and the T-groove (401), the end of the filter element housing (1) is engaged with the inner wall of the mounting plate (2).

8. A filter element according to claim 1, characterized in that: The outer wall of the sealing ring (302) abuts against the inner wall of the trapezoidal groove (301). Through the trapezoidal groove (301) and the mounting plate (2), the sealing ring (302) is positioned by the trapezoidal groove (301) when it is snapped in place.

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