CN210903276U - Puncture needle stop valve - Google Patents
Puncture needle stop valve Download PDFInfo
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- CN210903276U CN210903276U CN201921582352.7U CN201921582352U CN210903276U CN 210903276 U CN210903276 U CN 210903276U CN 201921582352 U CN201921582352 U CN 201921582352U CN 210903276 U CN210903276 U CN 210903276U
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Abstract
The utility model relates to a puncture needle stop valve, which comprises a valve seat, a valve core arranged in the valve seat, a valve cover arranged on an opening at the upper part of the valve seat and an operation component for driving the valve core to open and close; the two sides of the valve seat are respectively communicated with an inlet pipe and an outlet pipe; the valve core comprises a cylinder core, an elastic water closing plate and a pressure lifting cylinder; openings are formed in the two ends of the cylinder core and are vertically fixed on the bottom wall of the inner side of the valve seat, and the side face of the cylinder core is communicated with the inlet pipe; the elastic water closing plate is circular, the outer edge of the elastic water closing plate is fixed on the inner wall of the valve seat, a through hole is formed in the middle of the elastic water closing plate, the elastic water closing plate is located above the cylinder core, and the through hole of the elastic water closing plate corresponds to the top opening of the cylinder core; the pressure lifting cylinder is arranged in the through hole of the elastic water closing plate; the operation assembly is connected to the valve cover and can apply pressure on the pressure lifting barrel, so that the middle part of the elastic water closing plate is sunken downwards and is abutted to the top opening of the barrel core. The utility model discloses be convenient for medical personnel control gas and the switch of liquid.
Description
Technical Field
The utility model relates to a stop valve, in particular to pjncture needle stop valve.
Background
A needle shut-off valve is typically provided between the medical needle and the syringe for controlling the flow of gas or liquid therethrough.
Among the prior art, the pjncture needle that uses when doing the thorax puncture operation is large-size ordinary syringe needle, connect flexible rubber hose behind the needle cap during the operation, connect the syringe behind the flexible rubber hose, when treating patient, a medical personnel takes up the pjncture needle and pierces patient's thorax, another medical personnel cliies flexible rubber hose through vascular pincers, prevent that the air from carrying out patient's thorax, need change the syringe many times and bleed or draw liquid because during the treatment, when changing the needle tubing every time, all need clip flexible rubber hose in carrying out patient's thorax for preventing the air, consequently whole treatment process needs two medical personnel cooperations to go on, comparatively extravagant manpower.
For example, chinese patent No. CN201227314Y discloses a thoracic cavity puncture needle, which comprises a needle head, a needle tube and a connecting tube connected between the needle head and the needle tube, wherein a valve for controlling the flow of gas and liquid is arranged inside the connecting tube, and when the needle tube is replaced, the valve can be controlled to open and close the gas and liquid, so that one medical staff can complete the operation, and the labor is saved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a puncture needle stop valve, its advantage is convenient for medical personnel to control the switch of gas and liquid.
The above object of the present invention can be achieved by the following technical solutions: a puncture needle stop valve comprises a valve seat, a valve core arranged in the valve seat, a valve cover arranged on an opening at the upper part of the valve seat and an operation assembly for driving the valve core to open and close; the two sides of the valve seat are respectively communicated with an inlet pipe and an outlet pipe; the valve core comprises a cylinder core, an elastic water closing plate and a pressure lifting cylinder; openings are formed in the two ends of the cylinder core and are vertically fixed on the bottom wall of the inner side of the valve seat, and the side face of the cylinder core is communicated with the inlet pipe; the elastic water closing plate is circular, the outer edge of the elastic water closing plate is fixed on the inner wall of the valve seat, a through hole is formed in the middle of the elastic water closing plate, the elastic water closing plate is located above the cylinder core, and the through hole of the elastic water closing plate corresponds to the top opening of the cylinder core; the pressure lifting cylinder is arranged in the through hole of the elastic water closing plate; the operation assembly is connected to the valve cover and can apply pressure on the pressure lifting barrel, so that the middle part of the elastic water closing plate is sunken downwards and is abutted to the top opening of the barrel core.
By adopting the technical scheme, when in use, medical personnel can adjust the gap between the elastic water closing plate and the cylinder core through the operation assembly so as to adjust the size of liquid or gas; the adjustment is labor-saving and convenient.
The utility model discloses further set up to: the pressure lifting cylinder comprises a bottom plate, a connecting cylinder and a blocking edge; the bottom plate is horizontally arranged; the connecting cylinder is vertically arranged, the upper end and the lower end of the connecting cylinder are provided with openings, and the lower end of the connecting cylinder is fixed on the bottom plate; the blocking edge is of a funnel-shaped structure, and the lower edge of the blocking edge is fixedly connected with the upper edge of the connecting cylinder; the connecting cylinder is inserted into the through hole of the elastic water closing plate, and the outer wall of the connecting cylinder is attached to the inner wall of the through hole.
By adopting the technical scheme, the pressure lifting cylinder can apply downward pressure to the middle part of the elastic water closing plate more conveniently, and sealing is facilitated; and when the elastic water closing plate is pressed downwards, the blocking edge is attached to the upper surface of the elastic water closing plate, so that the sealing effect is better.
The utility model discloses further set up to: the operation assembly comprises an ejector rod, the ejector rod is vertically arranged, and the lower end of the ejector rod is located in the connecting cylinder and supported on the bottom plate.
Through adopting above-mentioned technical scheme, can push down and relax elasticity water board through the upper and lower of ejector pin, it is comparatively convenient to operate.
The utility model discloses further set up to: the operating assembly also comprises a threaded cylinder, a threaded rod and an operating handle; the threaded cylinder is vertically and fixedly connected to the valve cover, and the lower end of the threaded cylinder is positioned in the valve cover; the threaded rod is in threaded connection with the threaded cylinder, and the lower end of the threaded rod is vertically provided with an insertion hole for inserting the upper end of the ejector rod; the operating handle is fixed in the upper end of threaded rod, and the axis of operating handle is perpendicular with the threaded rod axis.
Through adopting above-mentioned technical scheme, during the use, twist the threaded rod through the operating handle, and then make the threaded rod push down or loosen the ejector pin, it is comparatively convenient to operate.
The utility model discloses further set up to: the upper surface of the valve cover is provided with a boss which is surrounded outside the threaded cylinder and is fixedly connected with the threaded cylinder.
Through adopting above-mentioned technical scheme, the boss can play supplementary fixed action to a screw thread section of thick bamboo, makes the fixed of a screw thread section of thick bamboo more firm.
The utility model discloses further set up to: the valve seat and the valve cover are fixed through bolts.
Through adopting above-mentioned technical scheme, the fixed of disk seat and valve gap is comparatively convenient.
The utility model discloses further set up to: and a sealing ring is arranged between the valve seat and the valve cover.
Through adopting above-mentioned technical scheme, the leakproofness between disk seat and the valve gap is better.
To sum up, the utility model discloses following beneficial effect has:
1. when in use, the medical staff can adjust the size of the liquid or the gas through the operation assembly; the adjustment is more convenient.
Drawings
FIG. 1 is a schematic structural view of a puncture needle shut-off valve in embodiment 1;
FIG. 2 is a sectional view of the puncture needle shut-off valve in embodiment 1;
FIG. 3 is a schematic structural view of a puncture needle shut-off valve in embodiment 2;
fig. 4 is an enlarged view of a portion a in fig. 3.
In the figure, 1, valve seat; 10. an inlet pipe; 11. an outlet pipe; 2. a valve core; 20. a barrel core; 21. an elastic water-closing plate; 22. lifting and pressing the cylinder; 220. a base plate; 221. a connecting cylinder; 222. blocking edges; 3. a valve cover; 30. a boss; 4. an operating component; 40. a threaded barrel; 41. a threaded rod; 42. a top rod; 43. an operating handle; 5. an opening degree reference assembly; 50. a scale plate; 51. a vertical limiting member; 510. a vertical rod; 511. a blocking piece is arranged; 512. a lower baffle plate; 513. a spring; 52. a limiting sleeve; 53. a reference bar; 6. and (5) sealing rings.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and 2, a puncture needle stop valve comprises a valve seat 1, a valve core 2 arranged in the valve seat 1, a valve cover 3 arranged on an opening at the upper part of the valve seat 1, and an operation assembly 4 for driving the valve core 2 to open and close; an inlet pipe 10 and an outlet pipe 11 are respectively communicated with two sides of the valve seat 1; the valve core 2 comprises a cylinder core 20, an elastic water closing plate 21 and a pressure lifting cylinder 22; two ends of the cylinder core 20 are provided with openings and are vertically fixed on the bottom wall of the inner side of the valve seat 1, and the side surface of the cylinder core 20 is communicated with the inlet pipe 10; the elastic water closing plate 21 is circular, the outer edge of the elastic water closing plate is fixed on the inner wall of the valve seat 1, a through hole is formed in the middle of the elastic water closing plate 21, the elastic water closing plate 21 is located above the cylinder core 20, and the through hole corresponds to the top opening of the cylinder core 20; the pressure lifting cylinder 22 is arranged in the through hole of the elastic water closing plate 21; the operating component 4 is connected to the valve cover 3 and can apply pressure on the pressure lifting cylinder 22, so that the middle part of the elastic water closing plate 21 is downwards sunken and is abutted on the top opening of the cylinder core 20.
When in use, medical staff can adjust the gap between the elastic water-closing plate 21 and the cylinder core 20 through the operation assembly 4, and further adjust the size of liquid or gas; the adjustment is labor-saving and convenient.
The elastic water-closing plate 21 can be made of plastic and has the advantages of good elasticity and corrosion resistance.
The pressure raising cylinder 22 comprises a bottom plate 220, a connecting cylinder 221 and a blocking edge 222; the bottom plate 220 is horizontally arranged; the connecting cylinder 221 is vertically arranged, openings are formed in the upper end and the lower end of the connecting cylinder 221, and the lower end of the connecting cylinder 221 is fixed on the bottom plate 220; the blocking edge 222 is of a funnel-shaped structure, and the lower edge of the blocking edge is fixedly connected with the upper edge of the connecting cylinder 221; the connecting cylinder 221 is inserted into the through hole of the elastic water-closing plate 21, and the outer wall of the connecting cylinder 221 is attached to the inner wall of the through hole.
After the arrangement, the pressure lifting cylinder 22 can apply downward pressure to the middle part of the elastic water closing plate 21 more conveniently, which is beneficial to sealing; and when the water blocking edge 222 is pressed downwards, the water blocking edge is attached to the upper surface of the elastic water closing plate 21, so that the sealing effect is better.
The operating assembly 4 includes a top rod 42, the top rod 42 is vertically disposed, and the lower end thereof is located in the connecting cylinder 211 and supported on the bottom plate 220.
The elastic water closing plate 21 can be pressed and released up and down through the top rod 42, and the operation is convenient.
The operating assembly 4 further comprises a threaded cylinder 40, a threaded rod 41 and an operating handle 43; the threaded cylinder 40 is vertically and fixedly connected to the valve cover 3, and the lower end of the threaded cylinder is positioned in the valve cover 3; the threaded rod 41 is in threaded connection with the threaded barrel 40, and the lower end of the threaded rod 41 is vertically provided with an insertion hole for inserting the upper end of the ejector rod 42; an operating handle 43 is fixed to the upper end of the threaded rod 41, and the axis of the operating handle 43 is perpendicular to the axis of the threaded rod 41.
When the device is used, the threaded rod 41 is screwed through the operating handle 43, so that the threaded rod 41 presses down or loosens the ejector rod 42, and the operation is convenient.
The upper surface of the valve cover 3 is provided with a boss 30, and the boss 30 is surrounded outside the thread cylinder 40 and is fixedly connected with the thread cylinder 40. The boss 30 can assist in fixing the threaded cylinder 40, so that the threaded cylinder 40 can be more firmly fixed.
The valve seat 1 and the valve cover 3 are fixed through bolts; a sealing ring 6 is arranged between the valve seat 1 and the valve cover 3 for improving the sealing performance between the valve seat 1 and the valve cover 3.
Example 2
Referring to fig. 3 and 4, in the actual operation process, the control of the valve switch size mainly depends on the proficiency of medical staff, and certain inaccuracy exists in the operation, which affects the treatment effect; to improve the lancet valve, a reference assembly 5 is provided.
The opening degree reference assembly 5 comprises a scale plate 50, a vertical limiting piece 51, a limiting sleeve 52 and a reference rod 53; the scale plate 50 is horizontally arranged, a round hole is arranged in the middle of the scale plate, and the scale plate 50 is sleeved outside the threaded rod 41 and fixedly connected with the boss 30; two vertical limiting pieces 51 are oppositely fixed on the scale plate 50, the two vertical limiting rods 51 are symmetrically arranged by taking the axis of the threaded rod 41 as the center, and the upper ends of the vertical limiting rods 51 are higher than the upper surface of the scale plate 50; the limiting sleeve 52 is sleeved and fixed on the threaded rod 41; the reference rod 53 is horizontally arranged, one end of the reference rod 53 is fixed on the limiting sleeve 52, when the valve is at a preset opening or preset closing limit position, the reference rod 53 is respectively contacted with one of the vertical limiting rods 52, and scales are drawn on the scale plate 50 in a rotating interval corresponding to the reference rod 53.
During the use, the staff can adjust the aperture size of valve according to the scale that benchmark pole 53 corresponds, and it is more accurate to adjust.
The vertical limiting part 51 comprises a vertical rod 510, an upper baffle 511, a lower baffle 512 and a spring 513; the vertical rod 510 vertically penetrates the scale plate 50; the upper baffle 511 is fixed on the vertical rod 510 and is positioned below the scale plate 50; the lower baffle 512 is fixed on the boss 30, and a hole for the vertical rod 510 to penetrate downwards is formed on the lower baffle 512; the spring 513 is sleeved on the vertical rod 510 and located between the upper baffle 511 and the lower baffle 512.
When the device is used, the upper end of the vertical rod 510 extends out under the thrust action of the spring 513 to limit the reference rod 53; when the threaded rod 41 needs to be rotated beyond a preset limit position, the reference rod 53 at the corresponding position can be pressed down, the blocking effect on the reference rod 53 is staggered, and the use is convenient.
The embodiment of this embodiment is the utility model discloses preferred embodiment is not according to this restriction the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. A puncture needle stop valve is characterized in that: the valve comprises a valve seat (1), a valve core (2) arranged in the valve seat (1), a valve cover (3) arranged on an opening at the upper part of the valve seat (1) and an operation component (4) for driving the valve core (2) to open and close; the two sides of the valve seat (1) are respectively communicated with an inlet pipe (10) and an outlet pipe (11); the valve core (2) comprises a cylinder core (20), an elastic water closing plate (21) and a pressure lifting cylinder (22); openings are formed in two ends of the cylinder core (20) and are vertically fixed on the bottom wall of the inner side of the valve seat (1), and the side face of the cylinder core (20) is communicated with the inlet pipe (10); the elastic water closing plate (21) is circular, the outer edge of the elastic water closing plate is fixed on the inner wall of the valve seat (1), a through hole is formed in the middle of the elastic water closing plate (21), the elastic water closing plate (21) is positioned above the cylinder core (20), and the through hole corresponds to the top opening of the cylinder core (20); the pressure lifting cylinder (22) is arranged in a through hole of the elastic water closing plate (21); the operation component (4) is connected to the valve cover (3) and can apply pressure on the pressure lifting cylinder (22) to enable the middle part of the elastic water closing plate (21) to be sunken downwards and abut against the top opening of the cylinder core (20).
2. The needle shut-off valve of claim 1, wherein: the pressure lifting cylinder (22) comprises a bottom plate (220), a connecting cylinder (221) and a blocking edge (222); the bottom plate (220) is horizontally arranged; the connecting cylinder (221) is vertically arranged, openings are formed in the upper end and the lower end of the connecting cylinder (221), and the lower end of the connecting cylinder (221) is fixed on the bottom plate (220); the blocking edge (222) is of a funnel-shaped structure, and the lower edge of the blocking edge is fixedly connected with the upper edge of the connecting cylinder (221); the connecting cylinder (221) is inserted into the through hole of the elastic water-closing plate (21), and the outer wall of the connecting cylinder (221) is attached to the inner wall of the through hole.
3. The needle shut-off valve of claim 2, wherein: the operating assembly (4) comprises a push rod (42), the push rod (42) is vertically arranged, and the lower end of the push rod is positioned in the connecting cylinder (221) and supported on the bottom plate (220).
4. The needle shut-off valve of claim 3, wherein: the operating assembly (4) further comprises a threaded cylinder (40), a threaded rod (41) and an operating handle (43); the threaded cylinder (40) is vertically and fixedly connected to the valve cover (3), and the lower end of the threaded cylinder is positioned in the valve cover (3); the threaded rod (41) is in threaded connection with the threaded barrel (40), and the lower end of the threaded rod (41) is vertically provided with an insertion hole for inserting the upper end of the ejector rod (42); the operating handle (43) is fixed at the upper end of the threaded rod (41), and the axis of the operating handle (43) is vertical to the axis of the threaded rod (41).
5. The needle shut-off valve of claim 4, wherein: the upper surface of the valve cover (3) is provided with a boss (30), and the boss (30) is surrounded outside the thread cylinder (40) and is fixedly connected with the thread cylinder (40).
6. The needle shut-off valve of claim 1, wherein: the valve seat (1) and the valve cover (3) are fixed through bolts.
7. The needle shut-off valve of claim 6, wherein: a sealing ring (6) is arranged between the valve seat (1) and the valve cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921582352.7U CN210903276U (en) | 2019-09-20 | 2019-09-20 | Puncture needle stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921582352.7U CN210903276U (en) | 2019-09-20 | 2019-09-20 | Puncture needle stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210903276U true CN210903276U (en) | 2020-07-03 |
Family
ID=71358493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921582352.7U Active CN210903276U (en) | 2019-09-20 | 2019-09-20 | Puncture needle stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210903276U (en) |
-
2019
- 2019-09-20 CN CN201921582352.7U patent/CN210903276U/en active Active
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