Filter element service life identification device

Abstract

The utility model relates to the technical field of filter element detection equipment, in particular to a filter element service life identification device. According to the technical scheme, the pressure difference switch comprises a pressure difference switch, a mounting screw and a pair of adjusting screws, the mounting screw and the adjusting screws are arranged on the pressure difference switch, the T-shaped cover and the I-shaped cover are movably connected to the pressure difference switch and cover the adjusting screws and the mounting screw, and the T-shaped cover and the I-shaped cover are fixedly connected; and the reinforcing mechanism is arranged on the pressure difference switch and the T-shaped cover. According to the utility model, the T-shaped cover, the I-shaped cover, the reinforcing mechanism, the cover plate, the switch mechanism and other structures are matched, so that a pair of adjusting screws can effectively prevent an operator from adjusting the setting of the pressure difference switch carelessly, thereby ensuring the stability of the threshold setting of a system. And meanwhile, unauthorized persons can be prevented from detaching the fixing screws. Therefore, potential safety hazards or system faults caused by the fact that other personnel change system settings can be avoided, and it is ensured that equipment operates according to design standards.

Description

Technical Field

[0001] This utility model relates to the technical field of filter cartridge testing equipment, and in particular to a filter cartridge life identification device. Background Technology

[0002] Filter cartridge life identification devices are typically used to monitor the usage status of filter cartridges to determine whether they need replacement. Differential pressure switches are typically used to monitor the working status of filter cartridges. When the pressure difference of the filter exceeds a set threshold, the differential pressure switch will trigger a switching signal, indicating that the filter cartridge needs to be replaced or cleaned. In existing technology, differential pressure switches usually have an adjustment screw on the outside to set the threshold for triggering the differential pressure. Furthermore, the housing of the differential pressure switch also has fixing screws for disassembly and maintenance. With this design, operators can easily misadjust the differential pressure threshold during routine equipment maintenance, inspection, and cleaning, causing abnormal equipment response and interfering with system operation. At the same time, the fixing screws are easily disassembled and modified by unauthorized personnel. An inappropriate threshold—too low, leading to frequent system start-ups and shutdowns and increased wear; too high, failing to trigger in time, failing to effectively monitor and protect the filter cartridge, and adversely affecting the system. Utility Model Content

[0003] The purpose of this invention is to address the problems of existing differential pressure switches where adjusting and fixing screws are easily misadjusted by operators, and settings can be altered by unauthorized individuals, and improper thresholds can have adverse effects on the system. This invention proposes a filter cartridge life identification device.

[0004] The technical solution of this utility model is as follows: A filter cartridge life identification device includes a differential pressure switch, a mounting screw and a pair of adjusting screws disposed on the differential pressure switch, and further includes: a T-shaped cover and an I-shaped cover movably connected to the differential pressure switch and covering the adjusting screws and the mounting screws, the T-shaped cover and the I-shaped cover being fixedly connected; a reinforcing mechanism disposed on the differential pressure switch and the T-shaped cover; and a cover plate slidably connected to the differential pressure switch, the cover plate being provided with a switching mechanism for fixing the T-shaped cover and the I-shaped cover to the differential pressure switch and the cover plate.

[0005] Optionally, the switching mechanism includes a positioning block fixedly connected to the cover plate, the positioning block having an insertion hole, the I-shaped cover having an I-shaped positioning hole in the middle for the positioning block to pass through, a tube being inserted into the insertion hole, one end of the tube being fixedly connected to a bonding plate, and a padlock being hung inside the bonding plate and the tube.

[0006] Optionally, the reinforcement mechanism includes an M-shaped locking block fixedly connected to the differential pressure switch, a pair of insert rods fixedly connected to the M-shaped locking block, and an M-shaped slot for the M-shaped locking block to be engaged at the end of the T-shaped cover away from the I-shaped cover. A pair of positioning slots for the insert rods to be inserted are provided inside the M-shaped slot.

[0007] Optionally, both the T-shaped cover and the I-shaped cover have grooves corresponding to the adjusting screw and the mounting screw.

[0008] Optionally, the T-shaped cover is provided with a pair of first observation windows corresponding to the grooves.

[0009] Optionally, the end of the I-shaped cover away from the T-shaped cover is provided with a second observation window corresponding to the groove.

[0010] Optionally, the first observation window, positioning groove, insertion rod, and adjusting screw are all symmetrically arranged with the I-shaped positioning hole as the center.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] This invention utilizes the combined structure of a T-shaped cover, an I-shaped cover, a reinforcing mechanism, a cover plate, and a switching mechanism to effectively prevent operators from accidentally adjusting the pressure differential switch setting with a pair of adjusting screws, thereby ensuring the stability of the system's threshold setting. It also prevents unauthorized personnel from disassembling the fixing screws. This avoids unauthorized personnel altering system settings, preventing potential safety hazards or system malfunctions, and ensuring the equipment operates according to design standards. Attached Figure Description

[0013] Figure 1 A schematic diagram of the filter life identification device of this utility model is provided;

[0014] Figure 2 for Figure 1 A schematic diagram of the split structure;

[0015] Figure 3 for Figure 2 Partial structural diagram;

[0016] Figure 4 for Figure 2 A schematic diagram of the connection structure between the T-shaped cover and the I-shaped cover.

[0017] Reference numerals: 1. Differential pressure switch; 11. Adjusting screw; 12. M-shaped locking block; 13. Insert rod; 2. Cover plate; 21. Positioning insert block; 22. Insertion hole; 23. Adhesive plate; 24. Insert cylinder; 25. Padlock; 26. Mounting screw; 3. T-shaped cover; 31. First observation window; 32. M-shaped slot; 33. Positioning groove; 4. I-shaped cover; 41. Second observation window; 42. I-shaped positioning hole; 341. Groove. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example

[0025] like Figures 1 to 4As shown, the present invention proposes a filter cartridge life identification device, including a differential pressure switch 1, a mounting screw 26 and a pair of adjusting screws 11 disposed on the differential pressure switch 1, and a T-shaped cover 3 and an I-shaped cover 4 movably connected to the differential pressure switch 1 to cover the adjusting screws 11 and the mounting screws 26. Both the T-shaped cover 3 and the I-shaped cover 4 are made of sturdy and durable stainless steel. The T-shaped cover 3 and the I-shaped cover 4 are fixedly connected.

[0026] Among them, such as Figures 1 to 3 As shown, the cover plate 2 is equipped with a switching mechanism. The switching mechanism is used to fix the T-shaped cover 3 and the I-shaped cover 4 to the pressure differential switch 1 and the cover plate 2. The switching mechanism includes a positioning block 21 fixedly connected to the cover plate 2. The positioning block 21 cooperates with the I-shaped positioning hole 42 to install the I-shaped cover 4 and the T-shaped cover 3 in the specified positions. In this way, the relative positions between the parts are kept consistent during the assembly process, avoiding deviations. The positioning block 21 has an insertion hole 22. The I-shaped cover 4 has an I-shaped positioning hole 42 in the middle for the positioning block 21 to pass through. An insertion cylinder 24 is inserted into the insertion hole 22. After the insertion cylinder 24 is inserted into the insertion hole 22, it drives the bonding plate 23 to press tightly against the I-shaped cover 4, so that the I-shaped cover 4 cannot move away from the outer wall of the cover plate 2. One end of the insert 24 is fixedly connected to a bonding plate 23. A padlock 25 is hung inside the bonding plate 23 and the insert 24. The padlock 25 provides physical security by locking the target item or area to prevent unauthorized persons from obtaining access.

[0027] In addition, such as Figures 2 to 4 As shown, the differential pressure switch 1 and the T-shaped cover 3 are equipped with a reinforcing mechanism to prevent one end of the T-shaped cover 3 from being easily pried up by a tool. The cover plate 2 is slidably connected to the differential pressure switch 1. The reinforcing mechanism includes an M-shaped locking block 12 fixedly connected to the differential pressure switch 1. A pair of insert rods 13 are fixedly connected to the M-shaped locking block 12. The end of the T-shaped cover 3 away from the I-shaped cover 4 has an M-shaped slot 32 for the M-shaped locking block 12 to be inserted into. The inside of the M-shaped slot 32 has a pair of positioning grooves 33 for the insert rods 13 to be inserted into. After the insert rods 13 are inserted into the positioning grooves 33, they are firmly installed on the differential pressure switch 1 by the M-shaped locking block 12, so that one end of the T-shaped cover 3 is firmly connected to the differential pressure switch 1.

[0028] It is worth noting that, such as Figure 4 As shown, both the T-shaped cover 3 and the I-shaped cover 4 have grooves 341 corresponding to the adjusting screw 11 and the mounting screw 26. The grooves 341 allow the first observation window 31 and the second observation window 41 to easily view the status of the adjusting screw 11 and the mounting screw 26.

[0029] Furthermore, such as Figure 1 , Figure 2 and Figure 4As shown, the T-shaped cover 3 has a pair of first observation windows 31 corresponding to the groove 341, and the I-shaped cover 4 has a second observation window 41 corresponding to the groove 341 at the end away from the T-shaped cover 3. Both the first observation windows 31 and the second observation window 41 are made of tempered glass, and their function is to check the status of the adjusting screw 11 and the mounting screw 26. The pair of first observation windows 31, the positioning groove 33, the insert rod 13 and the adjusting screw 11 are all symmetrically arranged with the I-shaped positioning hole 42 as the center.

[0030] In this embodiment, when a filter life identification device is required, such as Figure 2 As shown, the threshold for triggering the differential pressure can be set by a pair of adjusting screws 11 on the differential pressure switch 1, while the internal components of the differential pressure switch 1 can be disassembled and maintained by the mounting screws 26 on the cover plate 2. Afterwards, simply use a key to open the padlock 25, then remove it from the bonding plate 23 and the insert 24, allowing the insert 24 to be removed from the insertion hole 22 on the positioning block 21. Next, place the T-shaped cover 3 flat on top of the differential pressure switch 1, aligning the pair of insert rods 13 with the pair of positioning slots 33, and then push the T-shaped cover 3 towards the M-shaped locking block 12. The T-shaped cover 3 moves the positioning slots 33 for the insert rods 13 to insert, and the M-shaped locking block 12 also engages in the M-shaped locking slots 32. Simultaneously, the T-shaped cover 3 moves the I-shaped cover 4 towards the differential pressure switch 1, causing the positioning block 21 to insert into the I-shaped positioning hole 42, thus installing the T-shaped cover 3 and the I-shaped cover 4 onto the differential pressure switch 1. Figure 1 The state of the adjusting screw 11 and the mounting screw 26 is thus prevented from being altered or disassembled by unauthorized personnel. Finally, the bonding plate 23 is moved to insert the insert 24 into the socket 22, and the padlock 25 is used to lock the bonding plate 23 and the insert 24, preventing the T-shaped cover 3 and the I-shaped cover 4 from moving away from the pressure differential switch 1. Furthermore, the first observation window 31 on the T-shaped cover 3 and the second observation window 41 on the I-shaped cover 4 allow direct viewing of the state of the adjusting screw 11 and the mounting screw 26.

[0031] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filter cartridge life identification device, comprising a differential pressure switch (1) and mounting screws (26) and a pair of adjusting screws (11) disposed on the differential pressure switch (1), characterized in that, Also includes: The T-shaped cover (3) and I-shaped cover (4) are movably connected to the differential pressure switch (1) and cover the adjusting screw (11) and the mounting screw (26), respectively, and the T-shaped cover (3) and I-shaped cover (4) are fixedly connected. A reinforcement mechanism is provided on the differential pressure switch (1) and the T-shaped cover (3); A cover plate (2) is slidably connected to the differential pressure switch (1). The cover plate (2) is provided with a switching mechanism that fixes a T-shaped cover (3) and an I-shaped cover (4) on the differential pressure switch (1) and the cover plate (2).

2. The filter cartridge life identification device according to claim 1, characterized in that, The switching mechanism includes a positioning block (21) fixedly connected to the cover plate (2), the positioning block (21) having an insertion hole (22), the I-shaped cover (4) having an I-shaped positioning hole (42) in the middle for the positioning block (21) to pass through, a tube (24) being inserted into the insertion hole (22), a bonding plate (23) being fixedly connected to one end of the tube (24), and a padlock (25) being hung inside the bonding plate (23) and the tube (24).

3. The filter cartridge life identification device according to claim 1, characterized in that, The reinforcement mechanism includes an M-shaped locking block (12) fixedly connected to the differential pressure switch (1), a pair of insert rods (13) fixedly connected to the M-shaped locking block (12), and an M-shaped slot (32) for the M-shaped locking block (12) to be inserted into the end of the T-shaped cover (3) away from the I-shaped cover (4). A pair of positioning slots (33) for the insert rods (13) to be inserted are provided inside the M-shaped slot (32).

4. The filter cartridge life identification device according to claim 1, characterized in that, Both the T-shaped cover (3) and the I-shaped cover (4) have grooves (341) corresponding to the adjusting screw (11) and the mounting screw (26).

5. A filter cartridge life identification device according to claim 4, characterized in that, The T-shaped cover (3) is provided with a pair of first observation windows (31) corresponding to the groove (341).

6. A filter cartridge life identification device according to claim 4, characterized in that, The I-shaped cover (4) has a second observation window (41) at the end away from the T-shaped cover (3) that corresponds to the groove (341).

7. A filter cartridge life identification device according to claim 5, characterized in that, The first observation window (31), positioning groove (33), insertion rod (13) and adjusting screw (11) are all symmetrically arranged with the I-shaped positioning hole (42) as the center.

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