CN210513394U - Cover is weighed to convenient negative pressure of changing primary filter - Google Patents
Cover is weighed to convenient negative pressure of changing primary filter Download PDFInfo
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- CN210513394U CN210513394U CN201921885409.0U CN201921885409U CN210513394U CN 210513394 U CN210513394 U CN 210513394U CN 201921885409 U CN201921885409 U CN 201921885409U CN 210513394 U CN210513394 U CN 210513394U
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- negative pressure
- primary filter
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- block
- positioning
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Abstract
The utility model discloses a cover is weighed to convenient negative pressure of changing primary filter, weigh cover body, work spring, locating plate, primary filter body and gasket including the negative pressure, the negative pressure is weighed and is installed the fixed plate on the cover body, and installs the block lug on the fixed plate to the block lug is laminated with the location nail each other, work spring and pulling piece interconnect, and work spring installs on the regulating block to the regulating block is laminated with the pulling piece each other, the regulating block is laminated with the location nail each other, and the regulating block is laminated with the fixed plate each other to install the function spring on the regulating block, the locating plate is laminated with the regulating block each other, and the locating plate is laminated with the drive board each other. This cover is weighed to convenient negative pressure of changing primary filter adopts the fixed mode of block, need not reuse other instruments when changing primary filter, and is simple and convenient, adopts adjustable device, is convenient for adapt to and installs the primary filter of difference to the width.
Description
Technical Field
The utility model relates to a cover technical field is weighed to the negative pressure, specifically is a cover is weighed to convenient negative pressure of changing primary filter.
Background
The cover is weighed to negative pressure is often used in fields such as scientific research, pharmacy and microbiological research, and the cover is weighed to negative pressure can filter the air to prevent that dust and reagent from being inhaled by the human body, avoid dust and reagent to cause the harm to the human body, the cover is weighed to negative pressure usually need carry on just can discharge clean air after filtration, middle-efficient filtration and the high-efficient filtration and supply the human body to inhale.
However, there are many problems in the process of using the negative pressure weighing cover, for example, the primary filter device is usually used for filtering larger dust, and therefore needs to be replaced frequently, and the conventional fixing mode adopts screw fixation, which is inconvenient to replace, needs to be assembled and disassembled by using tools, and cannot be adapted to the installation of primary filters with different specifications.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cover is weighed to convenient negative pressure of changing primary filter to it wastes time and energy to need the use of tools when changing to provide in solving above-mentioned background art, can't adapt to the problem of installing to the different primary filter of specification.
In order to achieve the above object, the utility model provides a following technical scheme: a negative pressure weighing cover convenient for replacing a primary filter comprises a negative pressure weighing cover body, a working spring, a positioning plate, a primary filter body and a gasket, wherein a fixed plate is installed on the negative pressure weighing cover body, a clamping lug is installed on the fixed plate, the clamping lug and a positioning nail are mutually attached, the positioning nail is installed on a pulling block, the working spring is mutually connected with the pulling block, the working spring is installed on an adjusting block, the adjusting block and the pulling block are mutually attached, the adjusting block and the positioning nail are mutually attached, the adjusting block and the fixed plate are mutually attached, a functional spring is installed on the adjusting block, the positioning plate and the adjusting block are mutually attached, a touch plate is installed on the driving plate, the driving plate and the touch plate are mutually attached with the adjusting block, the primary filter body and the touch plate are mutually attached, and touch panel and positioning spring interconnect to positioning spring installs on the cover body is weighed to the negative pressure, the gasket is installed on the regulating block, and gasket and primary filter body laminate each other.
Preferably, the fixed plate is equidistantly provided with clamping convex blocks, and the clamping convex blocks are right-angled triangles.
Preferably, the positioning nail and the pulling block are in welded connection, and the outer surface of the positioning nail is smooth.
Preferably, the regulating block is provided with 2 totally, and the regulating block upper end has seted up and has run through the recess.
Preferably, the locating plate sets up to "worker" style of calligraphy, and the locating plate passes through the function spring and is connected with the regulating block.
Preferably, the driving plate is made of a long-strip-shaped iron material, and the touch plate is connected with the driving plate in a welding mode.
Compared with the prior art, the beneficial effects of the utility model are that: the negative pressure weighing cover convenient for replacing the primary filter adopts a clamping and fixing mode, does not need to use other tools when the primary filter is replaced, is simple and convenient, adopts an adjustable device, and is convenient to adapt to the installation of the primary filters with different widths;
1. the mechanical structure consisting of the adjusting block, the functional spring, the positioning plate, the driving plate, the touch plate, the gasket and the positioning spring drives the touch plate to realize the movement of the driving plate, so that the primary filter body is fixed through the positioning plate;
2. thereby the mechanical structure that fixed plate, block lug, location nail, pulling piece and working spring constitute adjusts the position of adjusting the piece through the position difference of block lug and location nail block, can adapt to and install the primary filter body of different width.
Drawings
FIG. 1 is a schematic view of a cross-sectional structure of a negative pressure weighing cover body of the present invention;
FIG. 2 is a schematic view of the sectional structure of the adjusting block of the present invention;
FIG. 3 is a schematic top view of the cross-sectional structure of the primary filter body of the present invention;
FIG. 4 is a schematic side view of the cross-sectional structure of the primary filter body of the present invention;
fig. 5 is a schematic view of the sectional structure of the driving plate of the present invention.
In the figure: 1. a negative pressure weighing cover body; 2. a fixing plate; 3. clamping the convex block; 4. positioning nails; 5. pulling the block; 6. a working spring; 7. an adjusting block; 8. a functional spring; 9. positioning a plate; 10. driving the plate; 11. a touch pad; 12. a primary filter body; 13. a gasket; 14. and positioning the spring.
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. 1-5, the present invention provides a technical solution: a negative pressure weighing cover convenient for replacing a primary filter comprises a negative pressure weighing cover body 1, a fixing plate 2, a clamping lug 3, a positioning nail 4, a pulling block 5, a working spring 6, an adjusting block 7, a functional spring 8, a positioning plate 9, a driving plate 10, a touch plate 11, a primary filter body 12, a gasket 13 and a positioning spring 14, wherein the fixing plate 2 is installed on the negative pressure weighing cover body 1, the clamping lug 3 is installed on the fixing plate 2, the clamping lug 3 is attached to the positioning nail 4, the positioning nail 4 is installed on the pulling block 5, the working spring 6 is connected with the pulling block 5, the working spring 6 is installed on the adjusting block 7, the adjusting block 7 is attached to the pulling block 5, the adjusting block 7 is attached to the positioning nail 4, the adjusting block 7 is attached to the fixing plate 2, the functional spring 8 is installed on the adjusting block 7, the positioning plate 9 is attached to the adjusting block 7, and locating plate 9 and drive board 10 and laminate each other to install touch panel 11 on driving board 10, drive board 10 simultaneously and touch panel 11 all laminate each other with regulating block 7, and just imitate filter body 12 and touch panel 11 and laminate each other, and touch panel 11 and positioning spring 14 interconnect, and positioning spring 14 installs on the cover body 1 is weighed to the negative pressure, and gasket 13 installs on regulating block 7, and gasket 13 and just imitate filter body 12 laminate each other.
In this example, the fixing plate 2 is equidistantly provided with the clamping convex blocks 3, the clamping convex blocks 3 are right-angled triangles, the clamping convex blocks 3 are equidistantly arranged on the fixing plate 2, so that the positions of the adjusting blocks 7 can be changed conveniently according to the clamping positions of the clamping convex blocks 3 and the positioning nails 4, and the filter body 12 with different widths can be mounted conveniently, and the clamping convex blocks 3 are right-angled triangles, so that the clamping convex blocks 3 can be clamped and fixed by the positioning nails 4 conveniently;
the positioning nail 4 is connected with the pulling block 5 in a welding mode, the outer surface of the positioning nail 4 is smooth, the positioning nail 4 is connected with the pulling block 5 in a welding mode, the structure is more stable, and the outer surface of the positioning nail 4 is smooth and is convenient to clamp with the clamping convex block 3;
the number of the adjusting blocks 7 is 2, the upper ends of the adjusting blocks 7 are provided with penetrating grooves, the number of the adjusting blocks 7 is 2, the primary filter body 12 can be conveniently fixed at the same time, the upper ends of the adjusting blocks 7 are provided with penetrating grooves, and the adjusting blocks 7 are conveniently attached to and connected with the fixing plate 2;
the positioning plate 9 is arranged in an I shape, the positioning plate 9 is connected with the adjusting block 7 through the functional spring 8, the positioning plate 9 is arranged in an I shape, the positioning plate 9 is convenient to move from the outside, the positioning plate 9 is connected with the adjusting block 7 through the functional spring 8, and the position of the positioning plate 9 is changed through the functional spring 8;
The working principle is as follows: when the primary filter body 12 needs to be replaced, the positioning plate 9 in fig. 3 is pulled in the direction away from the primary filter body 12, the functional spring 8 is compressed and deformed, at the moment, the positioning plate 9 does not clamp and fix the primary filter body 12 any more, the positioning spring 14 in a compressed state recovers deformation, the positioning spring 14 is connected with the touch plate 11, the primary filter body 12 moves forwards, namely, the primary filter body 12 is pushed out, the touch plate 11 is connected with the driving plate 10, the driving plate 10 moves forwards along with the touch plate 11, the driving plate 10 is attached to the positioning plate 9 along with the forward movement of the driving plate 10, at the moment, the position in fig. 5 is reached, and at the moment, the primary filter body 12 can be directly taken down to continue to be replaced;
when the primary filter body 12 needs to be installed, the primary filter body 12 is pushed inwards by being attached to the driving plate 10, the primary filter body 12 is contacted with the touch plate 11 and pushes the touch plate 11 inwards as the primary filter body 12 in fig. 3 is pushed inwards, because the touch plate 11 is provided with the positioning spring 14, the positioning spring 14 is compressed and deformed, the driving plate 10 installed on the touch plate 11 also moves inwards as the touch plate 11 moves inwards, at this time, the driving plate 10 is not contacted with the positioning plate 9 any more, the compressed functional spring 8 recovers deformation, the positioning plate 9 is pushed to move towards the direction close to the primary filter body 12, so that the position of the primary filter body 12 is fixed, and the installation of the primary filter body 12 is completed;
when the primary filter body 12 width that needs the installation is less, upwards pull pulling block 5 in the fig. 5, because install work spring 6 on pulling block 5, so work spring 6 is pulled deformation this moment and is pulled positioning nail 4 of installation on block 5 and just no longer laminate with block lug 3, weigh the direction motion of cover body 1 with regulating block 7 to keeping away from the negative pressure, loose pulling block 5 after reaching suitable distance, work spring 6 resumes deformation, pulling block 5 downstream, the positioning nail 4 of installation is convenient for block lug 3 block fixed on pulling block 5 this moment, just realized adjusting block 7 this moment and adjusted, can install the less primary filter body 12 of width.
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 cover is weighed to convenient negative pressure of changing primary filter, includes that the negative pressure weighs cover body (1), working spring (6), locating plate (9), primary filter body (12) and gasket (13), its characterized in that: the negative pressure weighing cover comprises a negative pressure weighing cover body (1), a fixing plate (2) is installed on the negative pressure weighing cover body, a clamping lug (3) is installed on the fixing plate (2), the clamping lug (3) and a positioning nail (4) are attached to each other, the positioning nail (4) is installed on a pulling block (5) at the same time, a working spring (6) and the pulling block (5) are connected to each other, the working spring (6) is installed on an adjusting block (7), the adjusting block (7) and the pulling block (5) are attached to each other, the adjusting block (7) and the positioning nail (4) are attached to each other, the adjusting block (7) and the fixing plate (2) are attached to each other, a functional spring (8) is installed on the adjusting block (7), the positioning plate (9) and the adjusting block (7) are attached to each other, the positioning plate (9) and a driving plate (10) are attached to each other, and a touch plate (11), simultaneously drive board (10) and touch panel (11) and all laminate each other with regulating block (7), primary filter body (12) and touch panel (11) laminate each other, and touch panel (11) and positioning spring (14) interconnect to positioning spring (14) are installed on negative pressure weighs cover body (1), gasket (13) are installed on regulating block (7), and gasket (13) and primary filter body (12) laminate each other.
2. The negative pressure weighing cover convenient for replacing a primary filter as claimed in claim 1, which is characterized in that: the fixing plate (2) is equidistantly provided with clamping convex blocks (3), and the clamping convex blocks (3) are right-angled triangles.
3. The negative pressure weighing cover convenient for replacing a primary filter as claimed in claim 1, which is characterized in that: the positioning nail (4) is connected with the pulling block (5) in a welding mode, and the outer surface of the positioning nail (4) is smooth.
4. The negative pressure weighing cover convenient for replacing a primary filter as claimed in claim 1, which is characterized in that: the adjusting blocks (7) are provided with 2 adjusting blocks, and the upper ends of the adjusting blocks (7) are provided with penetrating grooves.
5. The negative pressure weighing cover convenient for replacing a primary filter as claimed in claim 1, which is characterized in that: the positioning plate (9) is arranged in an I shape, and the positioning plate (9) is connected with the adjusting block (7) through a functional spring (8).
6. The negative pressure weighing cover convenient for replacing a primary filter as claimed in claim 1, which is characterized in that: the driving plate (10) is made of strip-shaped iron materials, and the touch plate (11) is connected with the driving plate (10) in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921885409.0U CN210513394U (en) | 2019-11-05 | 2019-11-05 | Cover is weighed to convenient negative pressure of changing primary filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921885409.0U CN210513394U (en) | 2019-11-05 | 2019-11-05 | Cover is weighed to convenient negative pressure of changing primary filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210513394U true CN210513394U (en) | 2020-05-12 |
Family
ID=70574304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921885409.0U Active CN210513394U (en) | 2019-11-05 | 2019-11-05 | Cover is weighed to convenient negative pressure of changing primary filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210513394U (en) |
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2019
- 2019-11-05 CN CN201921885409.0U patent/CN210513394U/en active Active
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