Polytetrafluoroethylene filter element mounting structure

Abstract

The utility model relates to filter core installation technical field especially relates to a kind of polytetrafluoroethylene filter core mounting structure, including support plate and fixed plate, the fixed plate is provided with two and is distributed in support plate both sides;Tighten mechanism, it is installed on support plate;Dismounting mechanism, it is fixedly installed on fixed plate and is distributed in support plate both sides, dismounting mechanism power input end rotation setting is in support plate, power output end can be inserted into the clamping groove of use equipment inside.The utility model realizes the quick fixing of polytetrafluoroethylene filter core and equipment dismounting by the synergic effect of tighten mechanism and dismounting mechanism.Tighten mechanism is driven synchronous movement by gear and rack transmission to ensure that filter core inner wall is uniformly stressed, and fixed stability is high.Dismounting mechanism realizes the quick engagement and release of inclined clamping block by the cooperation of cam and compression spring, and equipment installation can be completed without tool, and maintenance efficiency is significantly improved.The overall structure is compact, adapts different size filter core, and prolongs filter core service life.

Description

Technical Field

[0001] This utility model relates to the field of filter element installation technology, specifically to a polytetrafluoroethylene filter element installation structure. Background Technology

[0002] Polytetrafluoroethylene (PTFE) filter elements are filter components made primarily of PTFE. They possess characteristics such as resistance to high and low temperatures, strong chemical stability, good surface non-stickiness, and high filtration accuracy, making them widely used in liquid or gas filtration applications in chemical, pharmaceutical, food, and electronics industries. Their porous structure effectively traps impurity particles while maintaining low filtration resistance, making them a key component in high-precision filtration systems.

[0003] In existing technologies, the installation and fixing methods for PTFE filter elements typically suffer from insufficient stability, inconvenient assembly and disassembly, and a lack of buffering and adjustment functions. For example, some devices use bolts to directly tighten the filter element ends or simple snap-fit ​​connections, which are prone to loosening due to vibration after long-term use, affecting the filtration seal. Other devices use adhesives to fix the filter element, requiring the destruction of the original structure for replacement, which is cumbersome and easily causes filter element material loss. Furthermore, traditional fixing structures are difficult to adapt to filter elements of different lengths or diameters, resulting in poor versatility, increased equipment maintenance costs and operational complexity, and the lack of buffering function means they cannot absorb the impact and stress generated by thermal expansion and contraction during operation, further reducing the filter element's lifespan and filtration efficiency. Therefore, a new PTFE filter element installation structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a polytetrafluoroethylene filter element installation structure to solve the problems of insufficient filter element fixation stability, inconvenient disassembly and assembly, and lack of buffer adjustment function in the prior art.

[0005] A polytetrafluoroethylene (PTFE) filter element installation structure includes a support plate and a fixing plate, wherein two fixing plates are provided and distributed on both sides of the support plate; a clamping mechanism is installed on the support plate, wherein the power output ends of the clamping mechanism can be spaced apart to clamp the inner wall of the PTFE filter element for fixing the PTFE filter element; and a disassembly and assembly mechanism is fixedly installed on the fixing plate and distributed on both sides of the support plate, wherein the power input end of the disassembly and assembly mechanism is rotatably disposed on the support plate, and the power output end can be snapped into the slot of the equipment being used for installing the structure and the equipment being used.

[0006] Preferably, the fastening mechanism includes: a handle, which is rotatably mounted in the middle of the support plate, a linkage gear is fixedly mounted on the handle, linkage racks are meshed on both sides of the linkage gear, and synchronization plates are fixedly mounted on the far ends of the two linkage racks; a guide assembly, which is mounted on the support plate and there are two of them, the two guide assemblies are fixedly connected to the two synchronization plates, and the guide assemblies can push the two synchronization plates away from each other to maintain the stability of the two synchronization plates approaching or moving away from each other; and a fastening plate, which is fixedly connected to the synchronization plate and is used to fasten to the inner wall of the polytetrafluoroethylene filter element to fix the inner wall of the polytetrafluoroethylene filter element.

[0007] Preferably, the guide assembly includes: two side plates fixed to the support plate, a guide post fixedly connected between the two side plates, a guide sleeve sleeved on the guide post, a synchronization plate and the guide sleeve fixedly connected, and a push spring sleeved on the guide post fixedly between the guide sleeve and one of the side plates, the push spring being used to push the guide sleeve, the synchronization plate and the contact plate to slide along the guide post; and a guide groove fixed to the support plate and disposed between the two side plates, a guide wheel mounted on the guide sleeve being slidably disposed in the guide groove.

[0008] Preferably, the disassembly and assembly mechanism includes: a connecting rod rotatably mounted on a support plate, one end of which is fixedly connected to a throttle, and the other end of which is fixedly connected to a cam; an outward push assembly fixedly mounted on a fixed plate, the cam and the outward push assembly slidingly contacting each other, and an inclined locking block fixedly mounted on the outward push assembly. The outward push assembly is used to push the inclined locking block into the slot of the device to install the structure and the device, and the cam is used to pull the inclined locking block out of the slot of the device through the outward push assembly to disassemble the structure from the device.

[0009] Preferably, the push-out assembly includes: a guide post, which is fixedly mounted on a fixed plate, a guide sleeve is sleeved on the guide post, an inclined block is fixedly connected to the guide sleeve, and a compression spring sleeved on the guide post is fixed between the guide sleeve and the fixed plate. The compression spring is used to push the inclined block into the slot of the device; a pressure plate, whose two ends are fixedly connected to the two guide sleeves, and a cam is in sliding contact with the pressure plate.

[0010] Beneficial Effects: This invention achieves rapid fixing and disassembly / removal of PTFE filter elements through the coordinated action of the fastening and disassembly mechanisms. The fastening mechanism drives the fastening plate to move synchronously via gear and rack transmission, ensuring uniform force on the inner wall of the filter element and high fixing stability. The guide post and guide sleeve in the guide assembly ensure movement accuracy, while the push spring provides continuous fastening force and buffers vibration and impact, preventing damage to the filter element due to rigid contact. The disassembly / removal mechanism achieves rapid engagement and release of the inclined locking block through the cooperation of the cam and compression spring, allowing for tool-free installation and significantly improving maintenance efficiency. The overall structure is compact, adaptable to filter elements of different sizes, reducing operational complexity and maintenance costs, and extending the service life of the filter element. Attached Figure Description

[0011] Figure 1 A schematic diagram of the overall structure of the polytetrafluoroethylene filter element installation structure; Figure 2 A schematic diagram of the guide component; Figure 3 This is a schematic diagram of the disassembly and assembly mechanism; In the attached diagram: 1-Support plate, 2-Fixing plate, 3-Fitting mechanism, 4-Disassembly and assembly mechanism, 31-Handle, 32-Linkage gear, 33-Linkage rack, 34-Synchronization plate, 35-Guide assembly, 36-Fitting plate, 351-Side plate, 352-Guide post, 353-Guide sleeve, 354-Push spring, 355-Guide groove, 356-Guide wheel, 41-Connecting rod, 42-Throttle, 43-Cam, 44-Push-out assembly, 45-Angled block, 441-Guide post, 442-Guide sleeve, 443-Compression spring, 444-Pressure plate. Detailed Implementation

[0012] To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following description is provided in conjunction with the appendix. Figure 1-3 The present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0013] A polytetrafluoroethylene (PTFE) filter element installation structure includes: a support plate 1 and a fixing plate 2, with two fixing plates 2 distributed on both sides of the support plate 1; a fastening mechanism 3 is installed on the support plate 1, and its power output ends can be separated from each other to fasten to the inner wall of the PTFE filter element; a disassembly and assembly mechanism 4 is fixedly installed on the fixing plate 2 and distributed on both sides of the support plate 1, with its power input end rotatably set on the support plate 1, and its power output end can be snapped into the slot of the device in use.

[0014] When installing a PTFE filter element, rotating the handle 31 drives the linkage gear 32 to rotate. The linkage gear 32 meshes with the linkage racks 33 on both sides, causing the two linkage racks 33 to move the synchronization plates 34 closer together. At this time, the synchronization plates 34 drive the guide sleeves 353 to slide along the guide posts 352, and the push springs 354 are compressed and stored. After placing the filter element between the clamping plates 36, releasing the handle 31 releases the elastic potential energy of the push springs 354, pushing the guide sleeves 353, synchronization plates 34, and clamping plates 36 away from each other along the guide posts 352. The clamping plates 36 then tightly contact the inner wall of the filter element for fixation. The guide wheels 356 slide within the guide grooves 355, working in conjunction with the guiding action of the guide posts 352 and guide sleeves 353 to ensure that the synchronization plates 34 move smoothly without deviation. The support plate 1 provides the mounting base for the clamping mechanism 3, while the fixing plate 2 supports the disassembly and assembly mechanisms 4 on both sides. The overall structure achieves the centered fixation of the filter element through the synchronous movement of the clamping mechanism 3.

[0015] like Figure 1As shown, the fastening mechanism 3 includes a handle 31, a linkage gear 32, a linkage rack 33, a synchronization plate 34, a guide assembly 35, and a fastening plate 36. The handle 31 is rotatably mounted in the middle of the support plate 1. The linkage gear 32 is fixed to the handle 31, and its two sides mesh with the linkage rack 33. The two linkage racks 33 are fixed to the synchronization plate 34 at their far ends. The guide assembly 35 is mounted on the support plate 1 and fixed to the synchronization plate 34. The fastening plate 36 is connected to the synchronization plate 34.

[0016] During the filter element fixing stage, rotating the handle 31 causes the linkage gear 32 to rotate, which, through meshing with the linkage rack 33, drives the two synchronous plates 34 to move in opposite directions at equal distances along the guide assembly 35. In the guide assembly 35, the guide sleeve 353 slides along the guide post 352, and the guide wheel 356 rolls within the guide groove 355, with double guidance eliminating movement gaps. The push spring 354 applies a continuous thrust to the guide sleeve 353, ensuring a tight fit between the clamping plate 36 and the inner wall of the filter element, adapting to the fixing requirements of filter elements with different inner diameters. When the filter element is subjected to axial force, the push spring 354 absorbs the impact through elastic deformation, avoiding filter element damage caused by rigid contact. The synchronous plate 34 ensures the consistency of movement of the two clamping plates 36, preventing eccentric installation of the filter element and improving structural stability during the filtration process.

[0017] like Figure 2 As shown, the guide assembly 35 includes a side plate 351, a guide post 352, a guide sleeve 353, a push spring 354, a guide groove 355, and a guide wheel 356. Two side plates 351 are fixed to the support plate 1. The guide post 352 connects the two side plates 351. The guide sleeve 353 is fitted onto the guide post 352 and fixed to the synchronization plate 34. The push spring 354 is fitted onto the guide post 352, with both ends abutting against the guide sleeve 353 and the side plate 351. The guide groove 355 is fixed to the support plate 1, and the guide wheel 356 is mounted on the guide sleeve 353 and slidably disposed within the guide groove 355.

[0018] When the synchronization plate 34 drives the guide sleeve 353 to move along the guide post 352, the guide sleeve 353 compresses or stretches the push spring 354. The reaction force of the push spring 354 is transmitted to the synchronization plate 34 through the guide sleeve 353, providing continuous adhesion force for the clamping plate 36. The guide wheel 356 is installed on the side of the guide sleeve 353 and embedded in the guide groove 355 to form a rolling guide, converting sliding friction into rolling friction, reducing motion resistance and improving response speed. The side plate 351 fixes both ends of the guide post 352 to ensure the parallelism between the axis of the guide post 352 and the guide groove 355, ensuring the straightness of the movement trajectory of the guide sleeve 353. When the filter element experiences dimensional fluctuations due to temperature changes, the push spring 354 automatically compensates for the gap through elastic expansion and contraction, maintaining stable adhesion force, suitable for long-term use in high-precision filtration scenarios.

[0019] like Figure 3As shown, the disassembly and assembly mechanism 4 includes a connecting rod 41, a handle 42, a cam 43, an outward push assembly 44, and a slanted locking block 45. The connecting rod 41 is rotatably mounted on the support plate 1, and the handle 42 and the cam 43 are respectively fixed to both ends of the connecting rod 41; the outward push assembly 44 is mounted on the fixed plate 2, the slanted locking block 45 is fixed to the outward push assembly 44, and the cam 43 slides in contact with the outward push assembly 44.

[0020] During installation, the structure is inserted into the equipment interface. The compression spring 443 pushes the guide sleeve 442 to slide along the guide post 441, causing the inclined locking block 45 to engage in the equipment slot, achieving rapid pre-fixation. The pressure plate 444 connects the guide sleeves 442 on both sides, ensuring synchronized movement of the inclined locking blocks 45. During disassembly, rotating the handle 42 drives the cam 43 to rotate via the connecting rod 41. The eccentric contour of the cam 43 presses against the pressure plate 444, causing the guide sleeve 442 to compress the compression spring 443 and disengage the inclined locking block 45 from the slot, completing the disassembly. The connecting rod 41 acts as a force transmission medium, converting the rotational motion of the handle 42 into the pushing force of the cam 43, a labor-saving design that reduces operational intensity. The sliding contact between the cam 43 and the pressure plate 444 is made of wear-resistant material, ensuring continued motion accuracy even after long-term use.

[0021] like Figure 3 As shown, the push-out assembly 44 includes a guide post 441, a guide sleeve 442, a compression spring 443, and a pressure plate 444. The guide post 441 is fixed on the fixing plate 2, and the guide sleeve 442 is sleeved on the guide post 441 and fixed to the inclined block 45; the compression spring 443 is sleeved on the guide post 441, and its two ends abut against the guide sleeve 442 and the fixing plate 2; the two ends of the pressure plate 444 are fixed to the two guide sleeves 442, and the cam 43 slides in contact with the pressure plate 444.

[0022] During equipment installation, the compression spring 443 naturally extends, pushing the guide sleeve 442 to slide along the guide post 441. The guide sleeve 442 drives the inclined locking block 45 to extend and engage with the equipment slot, achieving rapid fixation of the structure to the equipment. The pressure plate 444 connects the guide sleeves 442 on both sides, ensuring that the inclined locking block 45 moves synchronously and guarantees symmetrical engagement. During disassembly, rotating the handle 42 causes the cam 43 to rotate via the connecting rod 41. The protruding part of the cam 43 presses against the pressure plate 444, causing the guide sleeve 442 to compress the compression spring 443 and slide in the opposite direction along the guide post 441. The inclined locking block 45 retracts with the guide sleeve 442 and disengages from the slot. The cooperation between the guide post 441 and the guide sleeve 442 ensures the precise movement trajectory of the inclined locking block 45, and the compression spring 443 provides continuous clamping force to prevent the inclined locking block 45 from loosening due to vibration during equipment operation. The fixing plate 2 provides rigid support for the guide post 441. The entire system achieves rapid assembly and disassembly through a mechanical self-locking principle, allowing operation to be completed without additional tools.

[0023] Working principle: When the filter element is fixed, rotating the handle 31 drives the linkage gear 32 to rotate. The linkage gear 32 meshes with the linkage rack 33, causing the synchronous plates 34 on both sides to approach each other along the guide assembly 35. At this time, the PTFE filter element can be placed on the sticking plate 36. Release the handle 31, and the sticking plate 36 contacts the inner wall of the filter element and remains in close contact under the action of the push spring 354. The guide wheel 356 slides along the guide groove 355 to ensure smooth movement. During equipment installation, insert the structure into the equipment interface. The compression spring 443 pushes the guide sleeve 442 to drive the inclined locking block 45 into the equipment slot. During disassembly, rotating the handle 42 drives the cam 43 to rotate through the connecting rod 41. The cam presses the pressure plate 444, causing the guide sleeve 442 to compress the compression spring 443. The inclined locking block 45 disengages from the slot, and the device can be removed. When the filter element is subjected to vibration, the push spring 354 buffers the impact force through the guide sleeve 353 to avoid damage to the rigid contact; the compression spring 443 ensures that the inclined locking block 45 is always in close contact with the slot, preventing loosening during equipment operation.

[0024] This structure achieves equidistant movement of the clamping plate 36 through synchronous gear and rack transmission, adapting to filter elements with different inner diameters. Guide posts and sleeves enhance movement accuracy and prevent filter element eccentricity. A double push spring design provides bidirectional buffering to accommodate filter element size fluctuations caused by temperature changes. The disassembly and assembly mechanism uses a cam and compression spring for quick locking, allowing for single-person operation of installation and disassembly. The clamping plate 36 features an arc-shaped contact surface design, increasing the contact area with the filter element's inner wall and reducing localized pressure. The guide groove 355 and guide wheel 356 work together to eliminate lateral clearance, ensuring consistent positioning accuracy even after long-term use, making it suitable for high-frequency vibration chemical filtration applications.

[0025] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are similarly included within the protection scope of the present utility model.

Claims

1. A polytetrafluoroethylene filter element installation structure, comprising a support plate and a fixing plate, characterized in that, Two fixing plates are provided and distributed on both sides of the support plate; An adhesive mechanism is mounted on a support plate. The power output ends of the adhesive mechanism can be spaced apart to adhere to the inner wall of the polytetrafluoroethylene filter element, which is used to fix the polytetrafluoroethylene filter element. The disassembly and assembly mechanism is fixedly mounted on the fixed plate and distributed on both sides of the support plate. The power input end of the disassembly and assembly mechanism is rotatably set on the support plate, and the power output end can be snapped into the slot of the equipment being used for the installation of the structure and the equipment being used.

2. The polytetrafluoroethylene filter element installation structure according to claim 1, characterized in that, The bonding mechanism includes: A handle is rotatably mounted in the middle of the support plate. A linkage gear is fixedly installed on the handle. A linkage rack is meshed on both sides of the linkage gear. A synchronization plate is fixedly installed at the far ends of the two linkage racks. A guide assembly is mounted on the support plate and there are two of them. The two guide assemblies are fixedly connected to the two synchronization plates. The guide assemblies can push the two synchronization plates away from each other to maintain the stability of the two synchronization plates approaching or moving away from each other. The fastening plate, which is fixedly connected to the synchronization plate, is used to fasten tightly to the inner wall of the PTFE filter element to fix the inner wall of the PTFE filter element.

3. The polytetrafluoroethylene filter element installation structure according to claim 2, characterized in that, The guiding component includes: Side plates are fixed to the support plate and there are two of them. A guide post is fixedly connected between the two side plates. A guide sleeve is sleeved on the guide post. A synchronization plate is fixedly connected to the guide sleeve. A push spring sleeved on the guide post is fixed between the guide sleeve and one of the side plates. The push spring is used to push the guide sleeve, the synchronization plate and the pressing plate to slide along the guide post. A guide groove is fixed to the support plate and positioned between two side plates, and a guide wheel mounted on a guide sleeve is slidably disposed within the guide groove.

4. The polytetrafluoroethylene filter element installation structure according to claim 1, characterized in that, The disassembly / assembly mechanism includes: A connecting rod is rotatably mounted on a support plate. One end of the connecting rod is fixedly connected to a throttle, and the other end of the connecting rod is fixedly connected to a cam. The push assembly is fixedly mounted on the fixed plate. The cam and the push assembly slide in contact. An inclined block is fixedly provided on the push assembly. The push assembly is used to push the inclined block into the slot of the device to install the structure and the device. The cam is used to pull the inclined block out of the slot of the device through the push assembly to disassemble the structure from the device.

5. The polytetrafluoroethylene filter element installation structure according to claim 4, characterized in that, The extrapolation component includes: A guide post is fixedly mounted on a fixed plate. A guide sleeve is fitted on the guide post. An inclined block is fixedly connected to the guide sleeve. A compression spring fitted on the guide post is fixed between the guide sleeve and the fixed plate. The compression spring is used to push the inclined block into the slot of the device. The pressure plate is fixedly connected to the two guide sleeves at both ends, and the cam and the pressure plate are in sliding contact.

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