Hydraulic filter

Abstract

The utility model relates to a hydraulic filter, which solves the problem that water in the filter flows out after a joint is opened at present, so that a field is humidified. The filter comprises a filter body, a filter cartridge is arranged below the filter body, connectors are arranged on the left side and the right side of the filter body, and an insertion pipeline is arranged on the outer side of each connector. A first through hole and a second through hole which are communicated with each other are formed in each joint; the first through hole is close to the insertion pipeline and the diameter of the first through hole is smaller than that of the second through hole; a blocking plate which slides horizontally is arranged in the connector, and the blocking plate is of a structure which blocks the first through hole and does not block the second through hole. Compared with the prior art, the filter disclosed by the utility model has the following benefits: 1) the first through hole and the second through hole can be quickly blocked by the blocking plate, so that liquid in the filter is prevented from flowing out; (2) the sleeve is in threaded connection with the insertion pipeline, so that a good locking effect is ensured; and (3) after the sleeve is in threaded fit with the outer pipeline, the plugging plate is extruded by the insertion rod, so that the sealing performance of connection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a hydraulic filter. Background Art

[0002] The function of hydraulic filter is to filter various impurities in hydraulic system. The sources of impurities are mainly mechanical impurities that remain in the hydraulic system after cleaning, such as water rust, casting sand, welding slag, iron filings, coatings, paint skin and cotton yarn scraps.

[0003] The application number is 202222338872.1, and the name is a quick-connect hydraulic filter, which includes a hydraulic filter body and an external pipe, wherein a filter cartridge is arranged at the bottom of the hydraulic filter body, and joints are arranged on both sides of the hydraulic filter body, and sliding rods are installed at the top and bottom of both sides of the hydraulic filter body, and a sleeve is sleeved on the outer side of the sliding rod, and an annular sleeve plate is installed on one side of the two groups of sleeves on the same side, and positioning rods are sleeved on the top and bottom of the annular sleeve plate, and the ends of the two groups of positioning rods away from each other are installed with inclined blocks, and the ends of the outer sides of the positioning rods close to the inclined blocks are sleeved with springs, and the pipe connection can be achieved by pulling the annular mounting plate, and the positioning rod is driven to fix the connecting end of the external pipe through the cooperation of the sleeve, the sliding rod, the connecting plate, the inclined block and the spring, and is fixed by the locking bolt on the sleeve to achieve quick connection between the joint and the external pipe.

[0004] However, it also has some disadvantages: 1) it uses a single locking bolt for locking, and its fixing effect is not reliable; 2) when the filter needs to be repaired or replaced, water will flow out after the joint is opened, causing a deterioration of the site. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a hydraulic filter, which solves the problem that when the joint is opened, the water in the filter will flow out and cause the site to be wet.

[0006] The utility model solves the technical problem by the following technical means: a hydraulic filter comprises a filter body, a filter cartridge is arranged below the filter body, joints are arranged on the left and right sides of the filter body, and an insertion pipe is arranged on the outer side of each joint;

[0007] Each of the joints is provided with a first through hole and a second through hole that are connected to each other, the first through hole being close to the inserted pipe and having a smaller diameter than the second through hole;

[0008] A horizontally sliding blocking plate is provided in the joint, and the blocking plate is a structure that blocks the first through hole but does not block the second through hole;

[0009] The inserted pipe squeezes the blocking plate and pushes the blocking plate to move to form a structure in which the first through hole and the second through hole are connected.

[0010] Preferably, a support frame is fixed in the joint, and a guide rod is fixed on the sealing plate. The inner end of the guide rod can slide through the support frame and is placed on the inner side of the support frame. A spring is mounted on the outer circumference of the guide rod, one end of the spring is fixedly connected to the support frame, and the other end of the spring is fixedly connected to the sealing plate. The spring is a structure that always pushes the sealing plate to move toward the first through hole.

[0011] Preferably, there are two guide rods.

[0012] Preferably, the insertion pipe includes an outer pipe and a hollow insertion rod, the insertion rod is a blocking structure away from the end of the outer pipe, and a plurality of outflow holes are evenly distributed on the outer circumference of the insertion rod. The insertion rod pushes the blocking plate to slide into the second through hole, and the liquid in the outflow hole flows with the second through hole.

[0013] Preferably, a hollow sleeve is rotatably connected to the outer side of the joint, and the sleeve is threadedly connected to the inserted pipe.

[0014] Preferably, a positioning plate is fixed on the joint, a positioning rod is fixed on the outer end of the inserted pipe, and the positioning rod can be slidably inserted into the positioning plate to form a structure for positioning the inserted pipe.

[0015] Preferably, the outer pipe is of a tapered structure close to the insertion rod, and the outer pipe is of a small end close to the insertion rod.

[0016] Compared with the prior art, the utility model has the following advantages: 1) the blocking plate can quickly block the first through hole and the second through hole to prevent the liquid in the filter from flowing out; 2) the sleeve and the inserted pipe are threadedly connected to ensure a good locking effect; 3) the sleeve and the external pipe thread are first matched, and then the insertion rod squeezes the blocking plate to ensure the sealing of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall axial side structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the matching structure of the connector and the inserted pipe of the utility model;

[0021] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0022] Figure 5 for Figure 3 Schematic diagram of the structure after the middle joint is cut open;

[0023] Figure 6 Insert the pipeline structure diagram for the utility model;

[0024] In the figure: 1. filter body; 2. joint; 3. insertion pipe; 4. first through hole; 5. second through hole; 6. blocking plate; 7. support frame; 8. guide rod; 9. spring; 10. outer pipe; 11. insertion rod; 12. sleeve; 13. positioning plate; 14. positioning rod. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-6 The specific implementation modes of the present utility model are further described in detail.

[0026] like Figure 1-6 As shown, a hydraulic filter comprises a filter body 1, a filter cartridge is arranged below the filter body 1, joints 2 are arranged on the left and right sides of the filter body 1, and an insertion pipe 3 is arranged on the outer side of each joint 2;

[0027] Each of the joints 2 is provided with a first through hole 4 and a second through hole 5 which are connected to each other. The first through hole 4 is close to the inserted pipe 3 and has a smaller diameter than the second through hole 5.

[0028] A horizontally sliding blocking plate 6 is provided in the joint 2, and the blocking plate 6 is a structure that blocks the first through hole 4 but does not block the second through hole 5;

[0029] The inserted pipe 3 squeezes the blocking plate 6 and pushes the blocking plate 6 to move to form a structure in which the first through hole 4 and the second through hole 5 are connected.

[0030] In the present device, the filter body 1 and the filter cartridge are not improved. The improvements are made to the joint 2 and the inserted pipe 3. The joint 2 and the inserted pipe 3 are inserted into each other. When the inserted pipe 3 is no longer in contact with the joint 2, the blocking plate 6 moves outward, thereby blocking the passage between the first through hole 4 and the second through hole 5, so that the liquid in the filter cannot flow out, which will not cause unnecessary impact on the site.

[0031] When communication is required, the pipe 3 is inserted to squeeze the blocking plate 6, so that the blocking plate 6 moves inward, thereby connecting the first through hole 4 and the second through hole 5, thereby allowing the liquid in the entire device to circulate.

[0032] A support frame 7 is fixed in the joint 2, and a guide rod 8 is fixed on the sealing plate 6. The inner end of the guide rod 8 can slide through the support frame 7 and is placed on the inner side of the support frame 7. A spring 9 is sleeved on the outer circumference of the guide rod 8. One end of the spring 9 is fixedly connected to the support frame 7, and the other end of the spring 9 is fixedly connected to the sealing plate 6. The spring 9 is a structure that always pushes the sealing plate 6 to move toward the first through hole 4.

[0033] In the present device, the support frame 7 is a planetary structure, which does not affect the normal circulation of the liquid. The guide rod 8 plays a guiding function here, ensuring a horizontal sliding direction of the blocking plate 6. At the same time, under the action of the spring 9, in the absence of external force, the blocking plate 6 is tightly attached to the first through hole 4, blocking the connection between the first through hole 4 and the second through hole 5.

[0034] There are two guide rods 8 .

[0035] The number of the guide rods 8 is not less than two, and may also be three, so as to better ensure a horizontal sliding effect of the blocking plate 6.

[0036] The insertion pipe 3 includes an outer pipe 10 and a hollow insertion rod 11. The end of the insertion rod 11 away from the outer pipe 10 is a blocking structure. A plurality of outflow holes are evenly distributed on the outer circumference of the insertion rod 11. The insertion rod 11 pushes the blocking plate 6 to slide into the second through hole 5, and the liquid in the outflow hole flows with the second through hole 5.

[0037] The outer pipe 10 is also hollow, and the rod 11 is inserted into the outer pipe 10 to be fixedly connected, such as Figure 6 As shown, when the insertion rod 11 squeezes the sealing plate 6, the outflow hole can be set to a structure with a larger diameter, so as to avoid the accumulation of impurities, so that the liquid in the inserted pipe 3 can communicate through the first through hole 4 and the second through hole 5.

[0038] A hollow sleeve 12 is rotatably connected to the outer side of the joint 2 , and the sleeve 12 is threadedly connected to the inserted pipe 3 .

[0039] In the present device, the sleeve 12 is provided with an internal thread, and the outer pipe 10 is provided with an external thread. The internal and external threads cooperate to achieve a threaded connection between the sleeve 12 and the inserted pipe 3, which has a good locking effect.

[0040] When the insertion pipe 3 is inserted into the joint 2, the outer pipe 10 is threadedly matched with the sleeve 12 first. After a few turns, the insertion rod 11 begins to contact the blocking plate 6. The sleeve 12 is continued to be turned, so that the outer pipe 10 moves toward the joint 2. The insertion rod 11 pushes the blocking plate 6 to move inward, so that the first through hole 4 and the second through hole 5 are connected, so that the liquid can flow normally. When it is necessary to release the match, the opposite is done. Before the outer pipe 10 and the sleeve 12 are separated, the blocking plate 6 has blocked the connection between the first through hole 4 and the second through hole 5, thereby preventing the liquid in the filter from flowing out.

[0041] A positioning plate 13 is fixed on the joint 2 , and a positioning rod 14 is fixed on the outer end of the inserted pipe 3 . The positioning rod 14 can be slidably inserted into the positioning plate 13 , forming a structure for positioning the inserted pipe 3 .

[0042] In the present device, a positioning hole is provided on the positioning plate 13 , and the positioning rod 14 is inserted into the positioning hole, which plays a positioning effect and also plays a guiding effect, thereby ensuring horizontal sliding property of the inserted pipe 3 .

[0043] In addition, a position plate is fixed in the middle of the positioning rod 14 . When the position plate fits with the positioning plate 13 , it indicates that the insertion rod 11 has been completely inserted into the joint 2 .

[0044] The outer pipe 10 is in a tapered structure near the insertion rod 11 , and the outer pipe 10 is in a small end near the insertion rod 11 .

[0045] The conical structure is provided mainly to facilitate the outer pipe 10 to enter the sleeve 12 .

[0046] 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 hydraulic filter, comprising a filter body (1), a filter cartridge being arranged below the filter body (1), wherein: The filter body (1) is provided with joints (2) on the left and right sides, and an insertion pipe (3) is provided on the outer side of each joint (2); Each of the joints (2) is provided with a first through hole (4) and a second through hole (5) which are connected to each other, wherein the first through hole (4) is close to the inserted pipe (3) and has a smaller diameter than the second through hole (5); A horizontally sliding blocking plate (6) is provided in the joint (2), and the blocking plate (6) is a structure that blocks the first through hole (4) but does not block the second through hole (5); The inserted pipe (3) squeezes the blocking plate (6) to push the blocking plate (6) to move, thereby forming a structure in which the first through hole (4) and the second through hole (5) are connected.

2. A hydraulic filter according to claim 1, characterized in that: A support frame (7) is fixed inside the joint (2), a guide rod (8) is fixed on the blocking plate (6), the inner end of the guide rod (8) can slidably penetrate the support frame (7) and is placed inside the support frame (7), a spring (9) is sleeved on the outer circumference of the guide rod (8), one end of the spring (9) is fixedly connected to the support frame (7), and the other end of the spring (9) is fixedly connected to the blocking plate (6), and the spring (9) is a structure that always pushes the blocking plate (6) to move toward the first through hole (4).

3. A hydraulic filter according to claim 2, characterized in that: There are two guide rods (8).

4. A hydraulic filter according to claim 1, characterized in that: The insertion pipe (3) comprises an outer pipe (10) and a hollow insertion rod (11); the end of the insertion rod (11) away from the outer pipe (10) is a blocking structure; a plurality of outflow holes are evenly distributed on the outer circumference of the insertion rod (11); the insertion rod (11) pushes the blocking plate (6) to slide into the second through hole (5), and liquid in the outflow hole communicates with the second through hole (5).

5. A hydraulic filter according to claim 1, characterized in that: A hollow sleeve (12) is rotatably connected to the outside of the joint (2), and the sleeve (12) is threadedly connected to the inserted pipe (3).

6. A hydraulic filter according to claim 1, characterized in that: A positioning plate (13) is fixed on the joint (2), and a positioning rod (14) is fixed on the outer end of the inserted pipe (3). The positioning rod (14) can be slidably inserted into the positioning plate (13), thereby forming a structure for positioning the inserted pipe (3).

7. A hydraulic filter according to claim 4, characterized in that: The outer pipe (10) is of a tapered structure on the side close to the insertion rod (11), and the side close to the insertion rod (11) is a small end.

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