CN211824706U - Conveniently change cover of weighing of primary filter - Google Patents
Conveniently change cover of weighing of primary filter Download PDFInfo
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- CN211824706U CN211824706U CN202020593742.0U CN202020593742U CN211824706U CN 211824706 U CN211824706 U CN 211824706U CN 202020593742 U CN202020593742 U CN 202020593742U CN 211824706 U CN211824706 U CN 211824706U
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Abstract
The utility model discloses a conveniently change cover of weighing of just imitating filter, including spacing cover and constant head tank, the inside left side of spacing cover is provided with powerful air pump, and the right side lower extreme of spacing cover is provided with the dust filter screen, the constant head tank is fixed in the inside of spacing cover, and the inside of constant head tank is provided with spacing draw-in groove, the inside of spacing draw-in groove is provided with the fixed filter, and the left end of spacing draw-in groove is connected with the fixed regulation pole. The dust filter screen that sets up can filter in advance the air in the entering device, in preventing a large amount of dust entering device, the frequency that fixed filter changed when avoiding using is too high and influence the practicality of device, can make in fixed filter impresses spacing draw-in groove through the spacing draw-in groove that sets up, to its fixed inconvenient and influence the normal use of device when avoiding using, the fixed adjusting rod through setting up is mutually supported with reset spring, can carry on spacingly to fixed filter, the skew appears in fixed filter when avoiding using.
Description
Technical Field
The utility model relates to a weigh cover technical field, specifically be a conveniently change cover of weighing of primary filter.
Background
Weighing indoor air, pressing the indoor air into the static pressure box through the primary filter and the intermediate filter by the centrifugal fan, blowing the indoor air out of the air outlet surface of the air flow diffusion and air supply unit through the high-efficiency filter, and enabling clean air to flow through a working area at an even section air speed so as to form a high-cleanness working environment. The operating area of the central weighing hood is maintained at a negative pressure, discharging 10% of the circulating air. The air in the central weighing chamber is self-circulated through a three-stage filtering system (a high-efficiency filter removes all dust with 9.99% of particles larger than or equal to 0.3 mu m), and the design meets GMP requirements of pharmaceutical factories.
The primary filter who weighs its inner wall in the cover use in market dismantles and changes inconveniently, make the practicality of weighing the cover reduce, the normal use of device has greatly been influenced, and weigh the cover and purify the air through primary filter, nevertheless primary filter sets up the inside of weighing the cover mostly, and weigh the cover and can't purify in advance the air, and tiny dust can pile up in the corner of weighing the cover, influence the device to its problem of normally clearing up, for this reason, we provide one kind and conveniently change primary filter weigh the cover.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a conveniently change cover of weighing of primary filter, with the primary filter dismantlement of its inner wall is changed inconveniently in weighing the cover use in solving the market that proposes in the above-mentioned background art, make the practicality of weighing the cover reduce, the normal use of device has greatly been influenced, and weigh the cover and purify the air along with can be through primary filter, nevertheless the most settings of primary filter are weighing the inside of cover, and it can't purify in advance to the air to weigh the cover, and tiny dust can pile up in weighing the corner of cover, influence the device to its problem of normally clearing up.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a conveniently change cover of weighing of primary filter, includes spacing cover and constant head tank, the inside left side of spacing cover is provided with powerful air pump, and the right side lower extreme of spacing cover is provided with the dust filter screen, the constant head tank is fixed in the inside of spacing cover, and the inside of constant head tank is provided with spacing draw-in groove, the inside of spacing draw-in groove is provided with fixed filter, and the left end of spacing draw-in groove is connected with the fixed regulation pole, the surface of fixed regulation pole is provided with reset spring.
Preferably, the connection mode between the limiting cover and the powerful air pump is fixed connection, the dust filter screen penetrates through the lower end of the right side of the limiting cover, and a communication structure is formed between the powerful air pump and the limiting cover.
Preferably, the limiting clamping grooves are symmetrical about the vertical center line of the positioning groove, and a sliding structure is formed between the limiting clamping grooves and the fixed filter.
Preferably, the fixed adjusting rod is connected with the limiting clamping groove in a welding mode, and the adjusting rod forms an elastic structure with the limiting clamping groove through the reset spring.
Preferably, the outer surface of the fixed filter is provided with a sealing ring, and the fixed filter forms a sealing structure through the sealing ring and the positioning groove.
Preferably, the inner wall of the limiting cover is provided with an anti-sticking layer, and the anti-sticking layer is fixedly connected with the limiting cover in a connecting mode.
Compared with the prior art, the beneficial effects of the utility model are that:
the weighing cover convenient for replacing the primary filter can pre-filter air entering the device through the arranged dust filter screen, so that a large amount of dust is prevented from entering the device, and the phenomenon that the practicability of the device is influenced due to overhigh replacement frequency of the fixed filter in use is avoided;
the fixed filter can be scratched into the limiting clamping groove through the arranged limiting clamping groove, the influence on the normal use of the device caused by inconvenience in fixing the fixed filter during use is avoided, the fixed filter can be limited through the mutual matching of the arranged fixed adjusting rod and the reset spring, and the fixed filter is prevented from deviating during use;
can make the sealed inseparabler of fixed filter through the sealing washer that sets up, in the dust got into fixed filter when avoiding using, and increase staff's clearance burden, antiseized layer through setting up is the polytetrafluoroethylene material, and its frictional force is extremely low, can avoid the dust to adsorb at the inner wall of spacing cover effectively.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the limiting cover of the present invention;
fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.
In the figure: 1. a limiting cover; 2. a powerful air pump; 3. a dust filter screen; 4. positioning a groove; 5. a limiting clamping groove; 6. fixing the filter; 7. fixing an adjusting rod; 8. a return spring; 9. a seal ring; 10. and (4) an anti-sticking layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a weighing cover convenient for replacing a primary filter comprises a limiting cover 1, a strong air pump 2, a dust filter screen 3, a positioning groove 4, a limiting clamping groove 5, a fixed filter 6, a fixed adjusting rod 7, a reset spring 8, a sealing ring 9 and an anti-sticking layer 10, wherein the strong air pump 2 is arranged on the left side in the limiting cover 1, the dust filter screen 3 is arranged at the lower right end of the limiting cover 1, the limiting cover 1 is fixedly connected with the strong air pump 2 in a connecting mode, the dust filter screen 3 penetrates through the lower right end of the limiting cover 1, a communicating structure is formed between the strong air pump 2 and the limiting cover 1, air entering the device can be filtered in advance through the arranged dust filter screen 3, a large amount of dust is prevented from entering the device, and the phenomenon that the practicability of the device is affected due to overhigh frequency of replacement of the fixed filter 6 in;
the locating slot 4 is fixed in the limiting cover 1, the limiting clamping slot 5 is arranged in the locating slot 4, the limiting clamping slot 5 is symmetrical about the vertical central line of the locating slot 4, a sliding structure is formed between the limiting clamping slot 5 and the fixed filter 6, the fixed filter 6 can be drawn into the limiting clamping slot 5 through the arranged limiting clamping slot 5, the influence on the normal use of the device caused by inconvenient fixing of the fixed filter during use is avoided,
a fixed filter 6 is arranged in the limiting clamping groove 5, a fixed adjusting rod 7 is connected to the left end of the limiting clamping groove 5, a return spring 8 is arranged on the outer surface of the fixed adjusting rod, the fixed adjusting rod 7 is connected with the limiting clamping groove 5 in a welding mode, the adjusting rod 7 forms an elastic structure with the limiting clamping groove 5 through the return spring 8, the fixed filter 6 can be limited through the mutual matching of the arranged fixed adjusting rod 7 and the return spring 8, and the fixed filter 6 is prevented from being deviated when in use;
the surface of fixed filter 6 is provided with sealing washer 9, and fixed filter 6 passes through and constitutes seal structure between sealing washer 9 and the constant head tank 4, sealing washer 9 through setting up can make fixed filter 6 sealed inseparabler, the dust gets into in fixed filter 6 when avoiding using, and increase staff's clearance burden, the inner wall of spacing cover 1 is provided with antiseized layer 10, and the connected mode between antiseized layer 10 and the spacing cover 1 is fixed connection, antiseized layer 10 through setting up is the polytetrafluoroethylene material, its frictional force is extremely low, can avoid the dust to adsorb at the inner wall of spacing cover 1 effectively.
The working principle is as follows: for the weighing cover, before the weighing cover is used, firstly, the dust filter screen 3 arranged on the right side of the limiting cover 1 is required to be known to pre-filter air entering the device, and the anti-sticking layer 10 is arranged on the inner wall of the limiting cover 1, so that dust is effectively prevented from being adsorbed on the inner wall of the limiting cover 1, when the weighing cover is used, a user firstly pulls the fixing adjusting rod 7 outwards, then inserts the fixing filter 6 into the limiting clamping groove 5 inside the positioning groove 4, then loosens the fixing adjusting rod 7, the fixing filter 6 can be automatically limited through the arranged reset spring 8, the normal use of the device is prevented from being influenced by the deviation of the fixing filter 6 when the weighing cover is used, the positioning groove 4 and the fixing filter 6 can be sealed by the arranged sealing ring 9, a gap is prevented from being formed when the weighing cover is used, and finally, the, the entire use of the weighing cover is thus completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a conveniently change cover of weighing of primary filter, includes spacing cover (1) and constant head tank (4), its characterized in that: the inside left side of spacing cover (1) is provided with powerful air pump (2), and the right side lower extreme of spacing cover (1) is provided with dust filter screen (3), constant head tank (4) are fixed in the inside of spacing cover (1), and the inside of constant head tank (4) is provided with spacing draw-in groove (5), the inside of spacing draw-in groove (5) is provided with fixed filter (6), and the left end of spacing draw-in groove (5) is connected with fixed adjusting rod (7), the surface of fixed adjusting rod is provided with reset spring (8).
2. The weighing cover convenient for replacing a primary filter as claimed in claim 1, wherein: the connection mode between the limiting cover (1) and the powerful air pump (2) is fixed connection, the dust filter screen (3) penetrates through the lower end of the right side of the limiting cover (1), and a communicating structure is formed between the powerful air pump (2) and the limiting cover (1).
3. The weighing cover convenient for replacing a primary filter as claimed in claim 1, wherein: the limiting clamping grooves (5) are symmetrical about the vertical central line of the positioning groove (4), and a sliding structure is formed between the limiting clamping grooves (5) and the fixed filter (6).
4. The weighing cover convenient for replacing a primary filter as claimed in claim 1, wherein: the fixed adjusting rod (7) is connected with the limiting clamping groove (5) in a welding mode, and the adjusting rod (7) forms an elastic structure with the limiting clamping groove (5) through the reset spring (8).
5. The weighing cover convenient for replacing a primary filter as claimed in claim 1, wherein: the outer surface of the fixed filter (6) is provided with a sealing ring (9), and the fixed filter (6) forms a sealing structure with the positioning groove (4) through the sealing ring (9).
6. The weighing cover convenient for replacing a primary filter as claimed in claim 1, wherein: the inner wall of the limiting cover (1) is provided with an anti-sticking layer (10), and the anti-sticking layer (10) is fixedly connected with the limiting cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020593742.0U CN211824706U (en) | 2020-04-20 | 2020-04-20 | Conveniently change cover of weighing of primary filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020593742.0U CN211824706U (en) | 2020-04-20 | 2020-04-20 | Conveniently change cover of weighing of primary filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211824706U true CN211824706U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020593742.0U Active CN211824706U (en) | 2020-04-20 | 2020-04-20 | Conveniently change cover of weighing of primary filter |
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| CN (1) | CN211824706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880796A (en) * | 2021-01-11 | 2021-06-01 | 河南中润实验室工程有限公司 | Gas-purifying type balance weighing platform |
-
2020
- 2020-04-20 CN CN202020593742.0U patent/CN211824706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880796A (en) * | 2021-01-11 | 2021-06-01 | 河南中润实验室工程有限公司 | Gas-purifying type balance weighing platform |
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