A high efficiency filter installation structure with pressure replenishment

Abstract

The present invention discloses a high-efficiency filter installation structure with pressure replenishment, which is characterized by comprising a plurality of fixing screws fixed on a box body, a plurality of pressure replenishment mechanisms for positioning the high-efficiency filter, and a pressure positioning member for fixing the pressure replenishment mechanism, wherein the pressure replenishment mechanism comprises a main body member sleeved on the fixing screws and a presser foot protruding from one side of the main body, the bottom of the presser foot is pressed against the top surface of the outer frame of the high-efficiency filter, a sealing strip is provided between the bottom surface of the outer frame of the high-efficiency filter and the box body, and the pressure positioning member limits the axial displacement freedom of the pressure replenishment mechanism through an elastic member. The present invention realizes long-term constant pressure replenishment by using an elastic member to provide a continuous pressing force for the presser foot, avoids leakage caused by elastic failure of the sealing strip, and improves safety in use.

Description

Technical Field

[0001] The invention relates to an air purification equipment technology, in particular to a high efficiency filter installation structure with pressure replenishment. Background Art

[0002] High-efficiency air supply outlets are ideal terminal filtration devices for 1,000-, 10,000-level purification air conditioning systems, and can be widely used in purification air conditioning systems in the pharmaceutical, health, electronics, chemical and other industries. High-efficiency air supply outlets are used as terminal filtration devices for the renovation and construction of clean rooms at levels of 1,000-300,000, and are key equipment to meet purification requirements. High-efficiency air supply outlets include static pressure boxes, diffusers, and high-efficiency filters, and the interface with the air duct can be top-connected or side-connected.

[0003] The sealing installation structure used for the high-efficiency air outlet and high-efficiency filter in the existing purification air conditioning system is: a pressure beam or a pressure block passes through the screw rod, and then the nuts are tightened to fix the seal. However, due to the uneven force of the pressure beam or the pressure block at each nut fixing point, it is easy to cause the filter to have a poor seal during installation. In addition, the sealing gasket (or rubber ring, etc.) used for sealing has a limited sealing timeliness. Once it fails but is not replaced and maintained in time, it will lead to a decrease in the purification level, affecting the entire clean environment and causing irreparable losses. Summary of the invention

[0004] The purpose of the present invention is to provide a high-efficiency filter installation structure with pressure replenishment, which provides a constant and continuous pressing force for the high-efficiency filter through structural improvement, avoids the loss caused by sealing failure, and improves the overall performance of the high-efficiency filter.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a high-efficiency filter installation structure with pressure replenishment, including a plurality of fixed screws fixed on a housing, a plurality of pressure replenishing mechanisms for positioning the high-efficiency filter, and a pressure positioning member for fixing the pressure replenishing mechanism, the pressure replenishing mechanism including a main body member sleeved on the fixed screws and a pressure foot protruding from one side of the main body, the bottom of the pressure foot is pressed against the top surface of the outer frame of the high-efficiency filter, a sealing strip is provided between the bottom surface of the outer frame of the high-efficiency filter and the housing, and the pressure positioning member limits the axial displacement freedom of the pressure replenishing mechanism through an elastic member.

[0006] In the above technical solution, the fixed screw is arranged around the high-efficiency filter, one end of which is a screw with a thread, and the other end is provided with a step protruding from the screw near the bottom. A hollow chamber is provided in the body with openings at both ends. The fixed screw passes through the hollow chamber, and a supply elastic part is provided in the hollow chamber. The pressure positioning part is screwed on the fixed screw, and its bottom abuts against the supply elastic part to form a limit for the pressure replenishment mechanism.

[0007] A preferred solution is that an annular partition is provided in the hollow chamber of the main body, dividing the hollow chamber into two upper and lower chambers of a buffer chamber and a supply chamber, and the fixing screw passes through the two chambers; a buffer elastic member is provided in the buffer chamber, and a supply elastic member is provided in the supply chamber.

[0008] In the above technical solution, the openings at both ends of the body are larger than the diameters of the step and the pressure positioning member, and pressing plates are respectively provided at both ends of the hollow chamber, and the elastic member is encapsulated in the hollow chamber through the pressing plates.

[0009] A further technical solution is that the bottom of the buffer elastic part in the buffer chamber is pressed against the step of the fixed screw through a buffer pressing plate, and its top is against the annular separator. The top of the supply elastic part in the supply chamber is against the pressure positioning part through a supply pressing plate, and its bottom is against the annular separator.

[0010] In the above technical solution, the pressure positioning part is a nut part with a brim, whose internal thread matches the external thread on the fixing screw, and the pressure positioning part is a columnar structure smaller than the opening of the main body near the end of the main body, and the outer edge surface of the columnar structure is provided with scale marks; the other end of the pressure positioning part is a brim protruding from the columnar structure, and the brim is provided with a screw rolling embossing, and the pressure positioning part has axial displacement freedom along the fixing screw.

[0011] The above technical solution comprises four or six fixed screws, and the corresponding pressure supplementing mechanisms and pressure positioning members, which are respectively arranged at the four corners of the high efficiency filter, and the length of the pressure foot is adapted to the width of the outer frame of the high efficiency filter.

[0012] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0013] 1. The present invention comprises a fixing screw, a pressure supplement mechanism and a pressure positioning member, wherein the pressure supplement mechanism comprises a presser foot and an elastic member, the presser foot presses the high-efficiency filter, and the elastic member provides a constant and lasting pressure for the presser foot, that is, if the sealing strip is deformed and the thickness decreases, the elastic member may serve as a supplementary force, continue to apply the pressure of the presser foot to press the sealing strip, thereby extending the high-efficiency and lasting filtering and sealing performance of the high-efficiency filter, improving the use safety and reducing the cost;

[0014] 2. The present invention adopts a two-stage elastic member, which divides the hollow chamber of the body into a buffer chamber and a replenishment chamber, and fills the buffer elastic member and the replenishment elastic member respectively. The buffer elastic member near the bottom can provide shock absorption during transportation, and the filter sealing strip can still maintain sufficient pressing force even when transported on a bumpy road; the replenishment elastic member near the top continuously provides the replenishment pressure transmitted by the pressure positioning member during long-term use, ensuring long-term stable pressing force; the two-stage elastic member is preferred here, and the elastic force of the elastic member can be set separately according to design requirements, which has higher controllability and ensures the stability of pressure;

[0015] 3. Marks are set on the outer edge of the pressure positioning piece to clearly see the size of the pressure, thereby judging the thickness and sealing of the sealing strip, and timely maintenance and replacement to ensure sealing performance, effectively improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0017] Figure 2 yes Figure 1 Schematic diagram of the decomposition of

[0018] Figure 3 yes Figure 1 Structural schematic diagram of the medium pressure supplement mechanism;

[0019] Figure 4 yes Figure 1 A schematic diagram of the structure of the medium pressure positioning member;

[0020] Figure 5 It is a schematic diagram of the first embodiment of the present invention after installation.

[0021] Wherein: 1. Box body; 2. Fixed screw; 3. High-efficiency filter; 4. Pressure replenishment mechanism; 5. Pressure positioning piece; 6. Main body; 7. Presser foot; 8. Outer frame; 9. Sealing strip; 10. Screw; 11. Step; 12. Annular separator; 13. Buffer chamber; 14. Supply chamber; 15. Buffer elastic part; 16. Supply elastic part; 17. Buffer pressure piece; 18. Supply pressure piece; 19. Scale mark; 20. Twist and roll embossing. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0023] Example 1: See Figures 1 to 5As shown, a high-efficiency filter installation structure with pressure replenishment includes a plurality of fixed screws 2 fixed on a housing 1, a plurality of pressure replenishment mechanisms 4 for positioning a high-efficiency filter 3, and a pressure positioning member 5 for fixing the pressure replenishment mechanism 4, the pressure replenishment mechanism 4 includes a main body 6 sleeved on the fixed screws 2 and a presser foot 7 protruding from one side of the main body 6, the bottom of the presser foot 7 is pressed tightly against the top surface of an outer frame 8 of the high-efficiency filter 3, a sealing strip 9 is provided between the bottom surface of the outer frame 8 of the high-efficiency filter 3 and the housing 1, and the pressure positioning member 5 limits the axial displacement freedom of the pressure replenishment mechanism 4 through an elastic member.

[0024] In this embodiment, six fixing screws 2, and corresponding pressure supplementing mechanisms 4 and pressure positioning members 5 are included. Figure 5 As shown, the presser feet 7 are respectively arranged at the four corners of the high efficiency filter 3 and the center points of the upper and lower outer frames 8. The length of the presser feet 7 is adapted to the width of the outer frame of the high efficiency filter 3 to provide sufficient pressing force.

[0025] like Figure 1 , 2 As shown, the fixed screw 2 is arranged around the high efficiency filter 3, one end of which is a screw 10 with a thread, and the other end is provided with a step 11 protruding from the screw 10 near the bottom. The body 6 is provided with a hollow chamber with openings at both ends, and the screw 10 passes through the hollow chamber. In this embodiment, an annular separator 12 is provided in the hollow chamber, which divides the hollow chamber into two upper and lower chambers, namely, a buffer chamber 13 and a replenishing chamber 14, and the screw 10 passes through the two chambers through the annular separator 12; a buffer elastic member 15 is provided in the buffer chamber 13, and a replenishing elastic member 16 is provided in the replenishing chamber 14. The pressure positioning member 5 is screwed on the screw 10, and its bottom abuts against the replenishing elastic member 16, forming a limit to the pressure replenishing mechanism 4.

[0026] like Figure 1 As shown, the openings at both ends of the body 6 are larger than the diameters of the step 11 and the pressure positioning member 5, and the two ends of the hollow chamber are provided with pressing plates, through which the elastic member is encapsulated in the hollow chamber. Specifically, the bottom of the buffer elastic member 15 in the buffer chamber 13 is pressed against the step 11 of the fixing screw 2 through the buffer pressing plate 17, and its top is against the annular separator 12. The top of the replenishment elastic member 16 in the replenishment chamber 14 is against the pressure positioning member 5 through a replenishment pressing plate 18, and its bottom is against the annular separator 12.

[0027] like Figure 4As shown, the pressure positioning member 5 is a nut member with a brim, whose internal thread matches the external thread on the fixing screw 2, and the pressure positioning member 5 is a columnar structure smaller than the opening of the body 6 near the end of the body 6, and a scale mark 19 is provided on the outer edge surface of the columnar structure; the other end of the pressure positioning member 5 is a brim protruding from the columnar structure, and the brim is provided with a screw rolling embossing 20, and the pressure positioning member 5 has axial displacement freedom along the fixing screw 2.

[0028] When using, Figure 5 As shown, a suitable number of fixing screws 2 are arranged around the high efficiency filter 3, which can be determined according to the size of the high efficiency filter 3, so as to provide sufficient pressing force. The longer the side length, the more fixing mechanisms are needed. The fixing screw is fixed on the box body 1, and one of the top ends is a screw 10 with threads, and near the bottom is a step 11 protruding from the screw part, which is used to fix the pressure replenishment mechanism 4. The pressure replenishment mechanism 4 is actually slid on the fixing screw 2, and its presser foot 7 is limited, and the upper and lower openings of the chamber are closed by cooperating with the pressing plate in the chamber, and the buffer elastic member 15 and the supply elastic member 16 are installed in the corresponding chamber, and finally tightened by the pressure positioning member 5 to resist the supply pressing plate 18. At this time, the locking force is transmitted to the presser foot 7, and the outer frame 8 of the high efficiency filter 3 is pressed, and the outer frame 8 presses the sealing strip to form a pressing seal on the high efficiency filter 3. When the sealing strip becomes thinner, the elastic force of the elastic member can be used to sustain the locking force of the presser foot. The applied pressure value can also be determined by the mark on the pressure positioning member 5, and the axial position of the pressure positioning member 5 can be adjusted to adjust the pressing force, so that the pressure value can be visualized to ensure the sealing performance.

[0029] In this embodiment, a two-stage elastic member is used. Of course, a single elastic member can also be used, but it is difficult to select the elastic force value of the elastic member. Both buffering force and tightening force are required, and the force stability is not as good as the two-stage type in this embodiment. Therefore, this embodiment is the preferred option.

Claims

1. A high efficiency filter installation structure with pressure replenishment, characterized in that: It comprises a plurality of fixing screws fixed on the box body, a plurality of pressure supplementing mechanisms for positioning the high-efficiency filter and a pressure positioning member for fixing the pressure supplementing mechanism, the pressure supplementing mechanism comprises a main body member sleeved on the fixing screws and a pressure foot protruding from one side of the main body, the bottom of the pressure foot is pressed tightly against the top surface of the outer frame of the high-efficiency filter, a sealing strip is provided between the bottom surface of the outer frame of the high-efficiency filter and the box body, and the pressure positioning member limits the axial displacement freedom of the pressure supplementing mechanism through an elastic member; The fixing screw is arranged at the periphery of the high-efficiency filter, one end of which is a screw with a thread, and the other end is provided with a step protruding from the screw near the bottom, a hollow chamber is provided in the body, and both ends are open, the fixing screw passes through the hollow chamber, and a replenishment elastic member is provided in the hollow chamber, the pressure positioning member is screwed on the fixing screw, and its bottom abuts against the replenishment elastic member, forming a limit for the pressure replenishment mechanism; An annular partition is provided in the hollow chamber of the body, dividing the hollow chamber into two upper and lower chambers, namely, a buffer chamber and a replenishing chamber, and the fixing screw runs through the two chambers; a buffer elastic member is provided in the buffer chamber, and a replenishing elastic member is provided in the replenishing chamber; The openings at both ends of the body are larger than the diameters of the step and the pressure positioning member, and pressing sheets are respectively provided at both ends of the hollow chamber, and the elastic member is encapsulated in the hollow chamber through the pressing sheets; The bottom of the buffer elastic member in the buffer cavity is pressed against the step of the fixed screw through a buffer pressing sheet, and its top is pressed against the annular separator. The top of the replenishment elastic member in the replenishment cavity is pressed against the pressure positioning member through a replenishment pressing sheet, and its bottom is pressed against the annular separator. The pressure positioning part is a columnar structure smaller than the opening of the body near the end of the body, and scale marks are provided on the outer edge surface of the columnar structure; the other end of the pressure positioning part is a brim protruding from the columnar structure, and the brim is provided with screw embossing. The pressure positioning part has axial displacement freedom along the fixing screw.

2. The high efficiency filter installation structure with pressure supply according to claim 1 is characterized in that: The pressure positioning piece is a nut piece with a brim, and the internal thread of the nut piece matches the external thread on the fixing screw rod.

3. The high efficiency filter installation structure with pressure supply according to claim 1 is characterized in that: It comprises four or six fixing screws, and the corresponding pressure supplementing mechanisms and pressure positioning members, which are respectively arranged at the four corners of the high efficiency filter, and the length of the pressure foot is adapted to the width of the outer frame of the high efficiency filter.

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