CN209004922U - Drop blood back prevents valve - Google Patents
Drop blood back prevents valve Download PDFInfo
- Publication number
- CN209004922U CN209004922U CN201821062417.0U CN201821062417U CN209004922U CN 209004922 U CN209004922 U CN 209004922U CN 201821062417 U CN201821062417 U CN 201821062417U CN 209004922 U CN209004922 U CN 209004922U
- Authority
- CN
- China
- Prior art keywords
- block
- spring
- fixed
- cavity
- fixing sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of drop blood backs to prevent valve, including dropping funnel and lightweight rectangular block, the lightweight rectangular block is located at the inside of dropping funnel, the inside of the lightweight rectangular block is equipped with adjusting cavity and spring cavity, and spring cavity is located at the side of adjusting cavity, the inside of the adjusting cavity is set there are two telescopic mast and circular cone, one end of two telescopic masts extends respectively to the outside of lightweight rectangular block, and one end that two telescopic masts are located at outside lightweight rectangular block is respectively and fixedly provided with arc block, the inside of the spring cavity is equipped with link block, the side of link block is fixedly connected with the first fixed column, and first one end of fixed column extend to the inside of adjusting cavity and be fixedly connected with one end of circular cone, the other side of link block is fixedly connected with the second fixed column.The utility model is structurally reasonable, ingenious in design, does not only reach the purpose for preventing blood back, and easy to operate, convenient for adjusting, consequently facilitating reusing after replacement drop.
Description
Technical field
The utility model relates to medical technology technical fields more particularly to a kind of drop blood back to prevent valve.
Background technique
Patient makes having an intravenous drip, and due to carelessness, drop, which is flow to end, will cause blood vessel blood back, this when nurse usual processing
Means are replacement syringe needles, and such way has both sides defect: 1, causing to defend the waste of material, passive shadow is brought to environmental protection
It rings；2, blood back itself may cause superinfection to patient, it is also possible to bring unexpected side effect to patient.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of drop blood back proposed is anti-
Only valve.
To achieve the goals above, the utility model adopts the technical scheme that
Drop blood back prevents valve, including dropping funnel and lightweight rectangular block, and the lightweight rectangular block is located at the inside of dropping funnel, described
The inside of lightweight rectangular block is equipped with adjusting cavity and spring cavity, and spring cavity is located at the side of adjusting cavity, the inside of the adjusting cavity
If there are two telescopic mast and circular cones, one end of two telescopic masts extends respectively to the outside of lightweight rectangular block, and two
One end that telescopic mast is located at outside lightweight rectangular block is respectively and fixedly provided with arc block, and the inside of the spring cavity is equipped with link block, connection
The side of block is fixedly connected with the first fixed column, and one end of the first fixed column extend to adjusting cavity inside and circular cone one
End is fixedly connected, and the other side of link block is fixedly connected with the second fixed column, and the outside of the second fixed column is fixed with fixed block,
The side of the lightweight rectangular block offers mounting hole, and mounting hole is connected with spring cavity, and the inside of mounting hole is fixed with solid
Fixed set, one end of fixing sleeve slidably connect adjustable column, and the bottom of the lightweight rectangular block is fixed with connecting rod, and the one of connecting rod
End is fixed with sealing block.
Preferably, the other end of the fixing sleeve can offer several tooth sockets and sliding slot, and the one of second fixed column
End extends to the inside of fixing sleeve, and the fixed block is triangular structure of right angle close to one end of fixing sleeve, and fixed block and tooth
Slot and sliding slot match.
Preferably, the two sides of two telescopic masts are respectively and fixedly provided with the first spring fixture block, and the outside of two telescopic masts covers
Equipped with the first spring, and the first spring is between the first spring fixture block and the side inner wall of adjusting cavity, the first fixed column it is outer
Portion is arranged with second spring, and second spring is located between link block and the side inner wall of spring cavity.
Preferably, one end of the adjustable column extends to the inside of fixing sleeve, and the other end of adjustable column is fixed with the second bullet
The outer cover of spring fixture block, the second adjustable column is equipped with third spring, and third spring is between second spring fixture block and fixing sleeve.
Preferably, one end of the arc block offers mounting groove, and the inner rotation of mounting groove is connected with limited block, described
The two sides inner wall of dropping funnel offers limiting slot, and limiting slot is matched with limited block.
Preferably, the bottom of the dropping funnel is equipped with bellmouth, and the sealing block is pyramidal structure, and sealing block and bellmouth
It matches.
The beneficial effects of the utility model are:
1, by between adjustable column, fixing sleeve, the second fixed column, fixed block, the first fixed column, circular cone and telescopic mast
Cooperation achievees the purpose that adjusting arc block stretches, consequently facilitating adjusting the position of lightweight rectangular block；
2, by arc block, the cooperation between limited block, limit hole, connecting rod and sealing block blocks taper in sealing block
The movement that sealing block is limited while hole, to achieve the purpose that anti-return blood.
The utility model is structurally reasonable, ingenious in design, does not only reach the purpose for preventing blood back, and easy to operate, is convenient for
It adjusts, consequently facilitating reusing after replacement drop.
Detailed description of the invention
Fig. 1 be the utility model proposes drop blood back prevent the structural schematic diagram of valve；
Fig. 2 be the utility model proposes drop blood back prevent valve lightweight rectangular block structural schematic diagram；
Fig. 3 be the utility model proposes drop blood back prevent enlarged drawing at the A of valve.
In figure: 1 dropping funnel, 2 lightweight rectangular blocks, 3 arc blocks, 4 telescopic masts, 5 sealing blocks, 6 limited blocks, 7 connecting rods, 8 inflations
Bag, 9 first fixed columns, 10 circular cones, 11 adjusting cavities, 12 adjustable columns, 13 fixing sleeves, 14 spring cavitys, 15 second fixed columns, 16 are consolidated
Determine block.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, drop blood back prevents valve, including dropping funnel 1 and lightweight rectangular block 2, and lightweight rectangular block 2 is located at dropping funnel 1
Inside, the inside of lightweight rectangular block 2 is equipped with adjusting cavity 11 and spring cavity 14, and spring cavity 14 is located at the side of adjusting cavity 11,
The inside of adjusting cavity 11 is set there are two telescopic mast 4 and circular cone 10, and one end of two telescopic masts 4 extends respectively to lightweight rectangular block
2 outside, and two telescopic masts 4 are located at one end outside lightweight rectangular block 2 and are respectively and fixedly provided with arc block 3, the inside of spring cavity 14
Equipped with link block, the side of link block is fixedly connected with the first fixed column 9, and one end of the first fixed column 9 extends to adjusting cavity
11 inside is fixedly connected with one end of circular cone 10, and the other side of link block is fixedly connected with the second fixed column 15, and second
The outside of fixed column 15 is fixed with fixed block, and the side of lightweight rectangular block 2 offers mounting hole, and mounting hole and 14 phase of spring cavity
Connection, the inside of mounting hole are fixed with fixing sleeve 13, and one end of fixing sleeve 13 slidably connects adjustable column 12, lightweight rectangular block 2
Bottom be fixed with connecting rod 7, one end of connecting rod 7 is fixed with sealing block 5.
In the present embodiment, the other end of fixing sleeve 13 can offer several tooth sockets and sliding slot, and the one of the second fixed column 15
End extends to the inside of fixing sleeve 13, and fixed block 16 is triangular structure of right angle close to one end of fixing sleeve 13, and fixed block 16
It is matched with tooth socket and sliding slot, the two sides of two telescopic masts 4 are respectively and fixedly provided with the first spring fixture block, and the outside of two telescopic masts 4 is equal
It is arranged with the first spring, and the first spring is between the first spring fixture block and the side inner wall of adjusting cavity 11, the first fixed column 9
Outer cover be equipped with second spring, and second spring is located between link block and the side inner wall of spring cavity 14, adjustable column 12
One end extends to the inside of fixing sleeve 13, and the other end of adjustable column 12 is fixed with second spring fixture block, the second adjustable column 12 it is outer
Portion is arranged with third spring, and third spring, between second spring fixture block and fixing sleeve 13, one end of arc block 3 offers
Mounting groove, the inner rotation of mounting groove are connected with limited block 6, and the two sides inner wall of dropping funnel 1 offers limiting slot, and limiting slot with
Limited block 6 matches, and the bottom of dropping funnel 1 is equipped with bellmouth, and sealing block 5 is pyramidal structure, and sealing block 5 and bellmouth match
It closes.
In the present embodiment, under initial situation, circular cone 10 is disengaged with two telescopic masts 4, limited block 6 and dropping funnel 1
Inner wall is not in contact with each other, and when patient starts to have an intravenous drip, presses dropping funnel 1, so that dropping funnel 1 be made to deform, and then can be pressed into adjusting
Column 12, adjustable column 12 starts to oppress the second fixed column 15, so that the second fixed column 15 is gradually backed out the inside of fixing sleeve 13,
Fixed block 16 is set to be gradually backed out the inside of sliding slot simultaneously, when the beveled end of fixed block 16 is in contact with tooth socket, in second spring
Under the cooperation of tooth socket, rotation by a small margin occurs for the second fixed column 15, so that fixed block 16 sticks into tooth along the inclined-plane of tooth socket
In slot, so that the second fixed column 15 be fixed, the second fixed column 15 oppresses the first fixed column 9, the first fixed column 9 and then drive
Circular cone 10, which oppresses two telescopic masts 4, finally makes limited block 6 to keep two arc blocks 3 close to the two sides inner wall of dropping funnel 1
It is in contact with the inner wall of dropping funnel 1, with flowing to end for 1 internal liquid of dropping funnel, lightweight rectangular block 2 drives sealing block 5 to be gradually reduced, most
Whole sealing block 5 sticks into bellmouth, and at the same time, limited block 6 sticks into limit hole, and limited block 6 can only one-directionally rotate, and then will
Sealing block 5 is fixed, and achievees the purpose that anti-return blood, after the drop more renewed, presses adjustable column 12 again, adjustable column 12 is pressed
Compel the second fixed column 15, equally under the cooperation of second spring and tooth socket, the generation of the second connecting column 15 rotates by a small margin, to make
Fixed block 16 enters in sliding slot, so that circular cone 10 is disengaged with telescopic rod 14, but also arc block 3 sets back,
Limited block 6 exits limiting slot, and as drop is assembled in dropping funnel 1, lightweight rectangular block 2 drives sealing block 5 to leave bellmouth, then
Repeat incipient operation.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. drop blood back prevents valve, including dropping funnel (1) and lightweight rectangular block (2), which is characterized in that the lightweight rectangular block (2)
Positioned at the inside of dropping funnel (1), the inside of the lightweight rectangular block (2) is equipped with adjusting cavity (11) and spring cavity (14), and spring cavity
(14) it is located at the side of adjusting cavity (11), the inside of the adjusting cavity (11) is set there are two telescopic mast (4) and circular cone (10), and two
One end of a telescopic mast (4) extends respectively to the outside of lightweight rectangular block (2), and two telescopic masts (4) are located at light rectangular
The external one end of shape block (2) is respectively and fixedly provided with arc block (3), and the inside of the spring cavity (14) is equipped with link block, and the one of link block
Side is fixedly connected with the first fixed column (9), and one end of the first fixed column (9) extends to inside and the circular cone of adjusting cavity (11)
(10) one end is fixedly connected, and the other side of link block is fixedly connected with the second fixed column (15), and the second fixed column (15)
Outside is fixed with fixed block, and the side of the lightweight rectangular block (2) offers mounting hole, and mounting hole is connected with spring cavity (14)
Logical, the inside of mounting hole is fixed with fixing sleeve (13), and one end of fixing sleeve (13) slidably connects adjustable column (12), the lightweight
The bottom of rectangular block (2) is fixed with connecting rod (7), and one end of connecting rod (7) is fixed with sealing block (5).
2. drop blood back according to claim 1 prevents valve, which is characterized in that the other end of the fixing sleeve (13) can be opened
Equipped with several tooth sockets and sliding slot, one end of second fixed column (15) extends to the inside of fixing sleeve (13), the fixation
Block (16) is triangular structure of right angle close to the one end of fixing sleeve (13), and fixed block (16) is matched with tooth socket and sliding slot.
3. drop blood back according to claim 1 prevents valve, which is characterized in that the two sides of two telescopic masts (4) are equal
It is fixed with the first spring fixture block, the outside of two telescopic masts (4) is arranged with the first spring, and the first spring is located at the first spring
Between fixture block and the side inner wall of adjusting cavity (11), the outer cover of the first fixed column (9) is equipped with second spring, and second spring position
Between link block and the side inner wall of spring cavity (14).
4. drop blood back according to claim 1 prevents valve, which is characterized in that one end of the adjustable column (12) extends to
The inside of fixing sleeve (13), the other end of adjustable column (12) are fixed with second spring fixture block, the outer cover of the second adjustable column (12)
Equipped with third spring, and third spring is located between second spring fixture block and fixing sleeve (13).
5. drop blood back according to claim 1 prevents valve, which is characterized in that one end of the arc block (3) offers
Mounting groove, the inner rotation of mounting groove are connected with limited block (6), and the two sides inner wall of the dropping funnel (1) offers limiting slot, and
Limiting slot is matched with limited block (6).
6. drop blood back according to claim 1 prevents valve, which is characterized in that the bottom of the dropping funnel (1) is equipped with taper
Hole, the sealing block (5) is pyramidal structure, and sealing block (5) is matched with bellmouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821062417.0U CN209004922U (en) | 2018-07-05 | 2018-07-05 | Drop blood back prevents valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821062417.0U CN209004922U (en) | 2018-07-05 | 2018-07-05 | Drop blood back prevents valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209004922U true CN209004922U (en) | 2019-06-21 |
Family
ID=66829299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821062417.0U Expired - Fee Related CN209004922U (en) | 2018-07-05 | 2018-07-05 | Drop blood back prevents valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209004922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879669A (en) * | 2021-08-31 | 2022-01-04 | 王戊申 | Protection structure for circuit board |
-
2018
- 2018-07-05 CN CN201821062417.0U patent/CN209004922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879669A (en) * | 2021-08-31 | 2022-01-04 | 王戊申 | Protection structure for circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 Termination date: 20200705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |