Filter pipe and pressure detection mechanism and detection equipment

Abstract

The utility model discloses a filter pipe, a pressure detection mechanism and detection equipment, and relates to the technical field of pressure detection. Comprising a conversion cover, a replacement disc, a filter element, an adjusting seat and a pipe orifice, and the conversion cover is provided with a cavity and at least two storage ports communicated with the cavity; the replacement disc is rotationally connected with the inner wall of the cavity of the conversion cover. The face, facing the containing opening, of the replacement disc is open and provided with a containing cavity. The filter element is detachably connected into the storage cavity from the at least one storage opening; the adjusting seat is connected to one of the storage openings; the pipe opening is connected to the side wall, right opposite to the adjusting base, of the conversion cover. The shifting block is pushed to be switched back and forth at the two ends of the adjusting groove, the replacement disc is driven to rotate relative to the conversion cover, in the rotation process of the replacement disc, the replacement disc drives the filter element arranged in the storage cavity to rotate together till the positions of the new filter element and the old filter element are switched from the two storage openings, the filter element can be replaced after the filter element is poured out, the structure is simple, operation is convenient, and practicability is high. And the replacement efficiency of the filter element is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure detection technology, specifically to a filter tube, a pressure detection mechanism, and a detection device. Background Technology

[0002] In hydraulic systems, pressure monitoring devices are typically installed at the outlet of the hydraulic pump or the inlet of the actuator to monitor the pressure of the hydraulic oil. To prevent impurities in the hydraulic oil from entering the pressure monitoring device and affecting its accuracy and normal operation, a filter element is usually installed before the pressure monitoring device for filtration.

[0003] Existing pressure testing equipment typically incorporates filters or filter elements inside the inlet pipe to intercept impurities such as dust, particles, and oil from the gas or liquid, preventing them from directly entering the testing equipment and ensuring accuracy and reliability. However, this design has revealed several problems in practical applications that urgently need to be addressed:

[0004] Firstly, replacing the filter screen or filter element is extremely inconvenient. Most filter screens or filter elements are fixed inside the device by bolts or other means. When replacement is needed, the operator must disassemble the inlet pipe layer by layer to pry the filter element or filter screen out of the inlet pipe. This process is not only tedious and time-consuming, but also places high demands on the operator's technical skills and patience. The slightest carelessness may lead to damage to the inlet pipe or filter element, requiring replacement of the parts.

[0005] Secondly, cleaning and maintaining the inlet pipe is difficult. To ensure the accuracy and performance of the testing equipment, the area where the filter element or screen is placed needs to be rinsed after replacement to remove residual impurities and contaminants. However, the inlet pipe is often tightly fixed to maintain a seal and is difficult to disassemble individually. This means that operators must remove the entire inlet pipe for effective cleaning. This design not only increases the complexity and workload of maintenance but may also lead to a decrease in the sealing performance of the inlet pipe during frequent disassembly and reassembly, thereby affecting the stability and reliability of the entire testing system.

[0006] Therefore, this application addresses the significant deficiencies in existing pressure testing equipment regarding filter replacement or filter element cleaning and maintenance of the inlet pipe, which severely impacts the ease of use and maintenance efficiency of the equipment. Utility Model Content

[0007] The purpose of this utility model is to provide a filter tube, a pressure detection mechanism, and a detection device, which aims to improve the efficiency of filter element replacement and facilitate the cleaning of the cavity where the filter element is placed without disassembly.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a filter tube, comprising:

[0009] A conversion cover having a cavity and at least two storage openings communicating with the cavity;

[0010] The replacement tray is rotatably connected to the inner wall of the cavity of the conversion cover, and the side of the replacement tray facing the storage port is open to provide a storage cavity;

[0011] A filter element is detachably connected to the storage cavity from at least one of the storage openings;

[0012] Adjustable seat, connected to one of the said storage openings; and

[0013] The nozzle is connected to the side wall of the conversion cover opposite the adjustment seat.

[0014] Furthermore, both the conversion cover and the replacement disk are cylindrical, and the replacement disk rotates coaxially on the inner wall of the conversion cover.

[0015] Furthermore, the outer peripheral wall of the conversion cover is provided with a horizontally arranged adjustment groove, and the outer wall of the replacement disc is connected to a toggle block extending from the adjustment groove. When the storage cavity and the storage opening are aligned, the outer wall of the conversion cover is provided with a locking member that cooperates with the toggle block.

[0016] Furthermore, a card holder is fixedly provided on the outer surface of the conversion cover, and an elastic element is fixedly provided inside the card holder. The other end of the elastic element is connected to the card to drive the card to extend into the actuating block.

[0017] Furthermore, a connecting frame is fixedly installed inside the storage cavity, and a lifting component is installed at the top of the connecting frame. The end of the lifting component away from the connecting frame is connected to the filter element.

[0018] Furthermore, the lifting assembly includes a lifting spring, a top block, and a spring seat. The spring seat is fixed to the connecting frame, the top block is slidably disposed on the inner wall of the spring seat, and the lifting spring is connected to the bottom wall of the top block and the spring seat.

[0019] Furthermore, the filter element has a bevel at its top and edge.

[0020] Furthermore, the end of the adjustment seat facing the replacement disc is provided with a platform to fit the inclined surface of the filter element.

[0021] This application also discloses a pressure testing mechanism, including a testing device, wherein the input end of the testing device is equipped with the aforementioned filter tube for allowing liquid to flow from the filter tube into the testing device.

[0022] This application also discloses a testing mechanism device, which has the aforementioned pressure testing mechanism built into it.

[0023] This utility model provides a filter tube, a pressure detection mechanism, and a detection device, which have the following beneficial effects:

[0024] (1) This utility model drives the toggle block to switch back and forth at both ends of the adjustment groove, causing the replacement disc to rotate relative to the conversion cover. During the rotation of the replacement disc, it drives the filter element inside the storage cavity to rotate together until the old and new filter elements switch positions from the two storage ports. After the filter element is poured out, the filter element replacement can be completed. The structure is simple and the operation is convenient, which improves the efficiency of filter element replacement. At the same time, the storage cavity of the filter element is open, and it can be directly rinsed with paper towels or water. Cleaning operation can be achieved without disassembly. It is preferable that the conversion cover and the replacement disc are made of plastic material to ensure durability.

[0025] (2) This utility model pushes the actuating block to the designated position, releases the card plate, and the elastic element restores its elastic deformation to push the card plate upward. During the movement, the card plate enters the actuating block to fix the replacement disc, making it more stable during use and less prone to misalignment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the conversion cover structure for this utility model;

[0028] Figure 3 This is an exploded view of the internal structure of the conversion cover in this utility model;

[0029] Figure 4 This is an exploded view of the internal structure of the replacement disk in this utility model.

[0030] In the diagram: 1. Detection device; 2. Conversion cover; 3. Replacement disc; 4. Storage cavity; 5. Filter element; 6. Adjustment seat; 7. Connecting screw; 8. Sealing groove; 9. Sealing gasket; 10. Adjustment groove; 11. Actuating block; 12. Card seat; 13. Card; 14. Elastic element; 15. Connecting frame; 16. Spring seat; 17. Lifting spring; 18. Top block; 19. Inclined surface; 20. Storage port; 21. Pipe port. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0032] like Figures 2-4As shown, a filter tube includes a conversion cover 2, a replacement disc 3, a filter element 5, an adjustment seat 6, and a port 21. The conversion cover 2 has a cavity and at least two storage ports 20 communicating with the cavity. The replacement disc 3 is rotatably connected to the inner wall of the cavity of the conversion cover 2, and the side of the replacement disc 3 facing the storage port 20 is open to provide a storage cavity 4. The filter element 5 is detachably connected to the storage cavity 4 from at least one storage port 20. The adjustment seat 6 is connected to one of the storage ports 20. The port 21 is connected to the side wall of the conversion cover 2 facing the adjustment seat 6. The top of the conversion cover 2 has multiple storage ports 20, preferably two, to facilitate the use and replacement of the filter element 5. The replacement disc 3 is located inside the conversion cover 2 and can rotate relative to the conversion cover 2. If the replacement disc 3 is eccentrically rotated inside the conversion cover 2, it is sufficient that the storage cavity 4 on the replacement disc 3 can be aligned with the two storage ports 20 when it rotates. However, it is preferable that the replacement disc 3 and the conversion cover 2 are on the same circumference. When one of the storage ports 20 and the storage cavity 4 are aligned, the filter element 5 can be placed from the storage port 20 into the storage cavity 4. Then, by rotating the replacement disc 3, the filter element 5 in the storage cavity 4 can be rotated between the adjusting seat 6 and the tube 21, thereby enabling the filter element 5 to work normally.

[0033] In this application, it is preferred that both the conversion cover 2 and the replacement disk 3 are cylindrical, and the replacement disk 3 rotates coaxially on the inner wall of the conversion cover 2, which helps to minimize the size of the replacement disk 3 and the conversion cover 2.

[0034] like Figures 1-4 As shown in one embodiment of this application, the outer peripheral wall of the conversion cover 2 is provided with a horizontally arranged adjustment groove 10, and the outer wall of the replacement disc 3 is connected to a toggle block 11 extending from the adjustment groove 10. When the storage cavity 4 and the storage opening 20 are aligned, the outer wall of the conversion cover 2 is provided with a locking member 13 that cooperates with the toggle block 11. The adjustment groove 10 is arc-shaped, preferably semi-arc-shaped. When the replacement disc 3 is switched back and forth, the toggle block 11 moves back and forth along the adjustment groove 10, rotating from one end of the adjustment groove 10 to the other end, which can drive the storage cavity 4 on the replacement disc 3 to switch, so that the used filter element 5 can be switched from the storage cavity 4 at the adjustment seat 6 to another storage opening 20 for easy replacement. When the storage cavity 4 and the storage opening 20 are aligned, the locking piece 13 can be inserted into the actuating block 11 to fix the rotational position between the replacement disc 3 and the conversion cover 2. It should be noted that if there are multiple storage openings 20, multiple locking pieces 13 can be evenly arranged along the outer wall of the adjustment groove 10. The specific arrangement depends on the number of storage openings 20. In this application, two storage openings 20 are preferably provided, so two locking pieces 13 are also provided, located at both ends of the adjustment groove 10 respectively.

[0035] Furthermore, a retainer 12 is fixedly provided on the outer surface of the conversion cover 2, and an elastic element 14 is fixedly provided inside the retainer 12. The other end of the elastic element 14 is connected to the retainer 13 to drive the retainer 13 into the actuating block 11. The retainer 13 is mounted on the retainer 12 through the elastic element 14. When the retainer 13 is pulled down manually, it can be separated from the actuating block 11. When the retainer 13 is released, the elastic element 14 drives the retainer 13 into the actuating block 11 through its own elastic force to restrict the rotation of the replacement disc 3 relative to the conversion cover 2.

[0036] In the above scheme, the card 13 can be a card block, a pin, etc., and the elastic element 14 is preferably a spring or an elastic sheet. The actuating block 11 has a hole for the card 13 to extend into, and its specific shape can be set according to the cross-section of the card 13.

[0037] like Figure 4 As shown, a connecting frame 15 is fixedly installed inside the storage cavity 4. A lifting component is installed at the top of the connecting frame 15, and the end of the lifting component away from the connecting frame 15 is connected to the filter element 5. In its initial state, the lifting component can lift the filter element 5 upwards. When the filter element 5 rotates to the storage opening 20 that needs to be removed, the lifting component can lift the filter element 5 upwards, reducing the need for users to use tools or other methods to remove the filter element 5 from the storage cavity 4, and further improving the convenience of disassembly.

[0038] like Figure 4 As shown, in one embodiment of this application, the lifting assembly includes a lifting spring 17, a top block 18, and a spring seat 16. The spring seat 16 is fixed to the connecting frame 15, and the top block 18 is slidably disposed on the inner wall of the spring seat 16. The lifting spring 17 is connected to the bottom wall of the top block 18 and the spring seat 16. The spring seat 16 is located in the middle of the connecting frame 15. The bottom of the spring seat 16 is lifted by the lifting spring 17, causing the top block 18 to rise. The top block 18 contacts the bottom end of the filter element 5, and under the action of the lifting spring 17, the upper end of the filter element 5 is pushed out to the storage port 20. Besides the above, the lifting assembly can also use an airbag or elastic sheet to replace the lifting spring 17; these are all prior art and will not be described here.

[0039] like Figure 4As shown, a bevel 19 is provided at the top of the filter element 5 and at the edge. The top of the filter element 5 is a bevel 19. After the filter element 5 extends into the storage cavity 4 from the storage port 20, the filter element 5 presses down on the lifting assembly. When the replacement disc 3 is rotated, the bevel 19 contacts the top of the conversion cover 2 and rotates to the other storage port 20. Preferably, the end of the adjusting seat 6 facing the replacement disc 3 is provided with a platform. When the replacement disc 3 drives the filter element 5 to rotate to the adjusting seat 6, the platform of the adjusting seat 6 fits against the bevel 19 of the filter element 5 to ensure that the filter element 5 rotates into place. The inner wall of the adjusting seat 6 is provided with an internal thread. At this time, the connecting screw 7 with an external thread can be screwed into the internal thread of the adjusting seat 6 until the connecting screw 7 presses down on the filter element 5, so that the filter element 5 is close to the pipe port 21, and the assembly of the filter element 5 is completed.

[0040] To further improve the overall sealing performance, a sealing gasket 9 is also included. The sealing gasket 9 is located at the end of the pipe opening 21 facing the replacement disc 3. When the filter element 5 is pressed down by the connecting screw tube 7, the filter element 5 is tightly pressed onto the sealing gasket 9, which further improves the sealing performance between the filter element 5 and the pipe opening 21. In addition, a sealing groove 8 is also opened at the top of the storage cavity 4. The sealing groove 8 can optionally house the sealing gasket 9. When the connecting screw tube 7 is screwed into the adjusting seat 6, the connecting screw tube 7 is pressed down on the top of the filter element 5 and the sealing groove 8 to complete the top sealing of the filter element 5.

[0041] like Figure 1 As shown, a pressure testing mechanism includes a testing device 1. The input end of the testing device 1 is equipped with the aforementioned filter tube, which is used to allow liquid to flow from the filter tube into the testing device 1. The testing device 1 can be a pressure gauge, a level gauge, or a handheld hydraulic tester. By injecting the liquid that has passed through the filter tube into the testing device 1, the pressure test of the liquid can be completed, while avoiding the influence of impurities carried by the liquid on the testing device 1.

[0042] A testing device having one or more of the aforementioned pressure testing mechanisms built-in for measuring the pressure of fluid passing through the testing device.

[0043] This utility model provides a filter tube, a pressure detection mechanism, and a detection device. The specific working principle is as follows:

[0044] When filter element 5 needs to be replaced, the staff inserts the new filter element 5 into the storage cavity 4 through the storage port 20, then unlocks the clip 13 and the toggle block 11, and rotates the toggle block 11 to slide it along the adjustment groove 10 to the other end. At this time, the positions of the two storage cavities 4 are swapped, and the positions of the old and new filter elements 5 are changed. Then, the detection device 1 is tilted, and the old filter element 5 can be poured out from the storage port 20 by combining with the lifting component. The connecting screw 7 is screwed into the interior of the adjustment seat 6 until the connecting screw 7 presses the sealing groove 8 and the filter element 5, and the replacement disc 3 is fixed by pressure, thus completing the replacement of filter element 5.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter tube, characterized in that, include: The conversion cover (2) has a cavity and at least two storage openings (20) communicating with the cavity; Replacement plate (3), rotates to connect the inner wall of the cavity of the conversion cover (2), the replacement plate (3) facing the storage port (20) has an open storage cavity (4); The filter element (5) is detachably connected to the storage cavity (4) from at least one of the storage openings (20); An adjustment seat (6) is connected to one of the storage openings (20); as well as The port (21) is connected to the side wall of the conversion cover (2) facing the adjustment seat (6).

2. The filter tube according to claim 1, characterized in that: Both the conversion cover (2) and the replacement disk (3) are cylindrical, and the replacement disk (3) rotates coaxially on the inner wall of the conversion cover (2).

3. The filter tube according to claim 1 or 2, characterized in that: The outer peripheral wall of the conversion cover (2) is provided with a horizontally arranged adjustment groove (10), and the outer wall of the replacement plate (3) is connected with a toggle block (11) extending from the adjustment groove (10). When the storage cavity (4) and the storage opening (20) are aligned, the outer wall of the conversion cover (2) is provided with a clip (13) that cooperates with the toggle block (11).

4. The filter tube according to claim 3, characterized in that: The outer surface of the conversion cover (2) is fixedly provided with a card holder (12), and an elastic element (14) is fixedly provided inside the card holder (12). The other end of the elastic element (14) is connected to the card (13) so as to drive the card (13) to extend into the actuating block (11).

5. The filter tube according to claim 1 or 2, characterized in that: A connecting frame (15) is fixedly installed inside the storage cavity (4). A lifting component is provided at the top of the connecting frame (15). The end of the lifting component away from the connecting frame (15) is connected to the filter element (5).

6. The filter tube according to claim 5, characterized in that: The lifting assembly includes a lifting spring (17), a top block (18), and a spring seat (16). The spring seat (16) is fixed to the connecting frame (15). The top block (18) is slidably disposed on the inner wall of the spring seat (16). The lifting spring (17) is connected to the bottom wall of the top block (18) and the spring seat (16).

7. The filter tube according to claim 1, characterized in that: The filter element (5) has a bevel (19) at its top and edge.

8. The filter tube according to claim 7, characterized in that: The adjusting seat (6) has a platform at one end facing the replacement disc (3) to fit the inclined surface (19) of the filter element (5).

9. A pressure detection mechanism, characterized in that: The device includes a detection device (1), the input end of which is equipped with a filter tube as described in any one of claims 1 to 8, for allowing liquid to flow from the filter tube into the detection device (1).

10. A testing mechanism device, characterized in that: The testing equipment has a built-in pressure testing mechanism as described in claim 9.

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