Disposable multi-layer sealing design water and air supply valve for endoscopy

Abstract

The utility model discloses a disposable multi-layer sealing design water and gas supply valve for endoscopy. The disposable multi-layer sealing design water and gas supply valve comprises a rod, a sleeve shell and a cover cap, a sleeve shell through hole is formed in the center of the sleeve shell; the rod penetrates through the through hole of the sleeve shell, is sleeved with the spring and then is fixed with the cover cap; a silica gel sleeve ring is arranged outside the sleeve shell in a sleeving manner; a first annular groove, a second annular groove, a third annular groove and a fourth annular groove are sequentially formed in the length direction of the outer circumference of the rod from bottom to top; a T-shaped sealing ring is arranged in the first annular groove; a small O-shaped sealing ring is arranged in the second annular groove; a bowl-shaped sealing ring is arranged in the third annular groove; a large O-shaped sealing ring is arranged in the fourth annular groove; the disposable syringe is disposable, can avoid cross infection, and is better in sealing performance at the same time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the improvement related technical field of endoscope examination water supply and gas supply valve, concretely relates to a disposable use multilayer sealing design endoscope examination water supply and gas supply valve capable of preventing cross infection and having good sealing performance. BACKGROUND

[0002] The existing endoscope examination water supply and gas supply valve is a reusable product, and the product needs to be disinfected for reuse after examination, which may cause infection of medical staff and patients and has high risk if the disinfection process is not complete; the existing endoscope examination water supply and gas supply valve is made of metal and is reusable, which has high product cost and is inconvenient to use and maintain, thereby increasing the medical cost of patients; the O-shaped sealing ring in the existing endoscope examination water supply and gas supply valve has an integral O-shaped structure, and the outer side is thick, which causes large pressing resistance of medical staff during an endoscope examination operation, thereby causing hand operation fatigue and affecting the operation process; in addition, the sealing performance is poor, and it is urgent to solve the problem.

[0003] Therefore, the utility model develops a disposable use multilayer sealing design endoscope examination water supply and gas supply valve capable of preventing cross infection and having good sealing performance. SUMMARY

[0004] The utility model discloses a disposable use multilayer sealing design endoscope examination water supply and gas supply valve capable of preventing cross infection and having good sealing performance.

[0005] To achieve the above object, the utility model provides the following technical scheme: a disposable use multilayer sealing design endoscope examination water supply and gas supply valve, including rod, casing and cap, the central part of casing is provided with casing through -hole, the rod passes through casing through -hole, and is fixed with cap after being sleeved with spring, the outside of casing is sleeved with silica gel ring, the length direction of the outer circumference of rod is sequentially provided with first annular groove, second annular groove, third annular groove and fourth annular groove from below to above, T type sealing ring is provided in first annular groove, small O type sealing ring is provided in second annular groove, bowl type sealing ring is provided in third annular groove, and large O type sealing ring is provided in fourth annular groove.

[0006] Preferably, annular protrusions are arranged on the outer circumferential surfaces of the T-shaped sealing ring, the small O-shaped sealing ring and the large O-shaped sealing ring; and the thickness of the annular protrusions is smaller than the thickness of each of the T-shaped sealing ring, the small O-shaped sealing ring and the large O-shaped sealing ring.

[0007] Preferably, a threaded hole is arranged in the cap; and an external threaded column is arranged on the upper end of the rod to realize the fixed connection of the rod and the cap by cooperating with the threaded hole.

[0008] Preferably, the bowl type sealing ring is designed with a thin edge, which can effectively allow gas to pass through the thin edge, and the bowl type sealing ring can also play a role in isolating gas when the product is pressed to supply water.

[0009] Preferably, the rod, the shell and the cap are plastic; the silica gel ring, the T-shaped sealing ring, the small O-shaped sealing ring, the bowl-shaped sealing ring and the large O-shaped sealing ring are silica gel.

[0010] Compared with the prior art, the utility model provides a disposable multi-layer sealing design endoscope examination water and gas feeding valve has the following beneficial effects:

[0011] 1. Four seals are arranged, the sealing performance is good, and the infection risk of medical staff and patients can be effectively eliminated;

[0012] In the use process, in the gas feeding state, the T-shaped sealing ring at the bottom is the first seal, the small O-shaped sealing ring is the second seal, the bowl-shaped sealing ring is the third seal, and the large O-shaped sealing ring is the fourth seal, if the first seal fails, the small O-shaped sealing ring in the second seal can still play a sealing role, and in turn, water flow can be effectively prevented, and water and gas can be effectively prevented from flowing out at the same time;

[0013] 2. The bowl-shaped sealing ring adopts a thin edge design, can effectively allow gas to pass through the thin edge, and when the product is pressed to feed water, the bowl-shaped sealing ring can also play a role in isolating gas;

[0014] 3. The cost is low, and there is certain advantage in market popularization and product application popularization, and the medical cost of patients is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model, and in the drawings:

[0016] Figure 1 It is a kind of disposable multi-layer sealing design endoscope examination water and gas feeding valve's exploded perspective structural schematic diagram for the utility model;

[0017] Figure 2 It is a kind of disposable multi-layer sealing design endoscope examination water and gas feeding valve's rod's section view enlarged schematic diagram for the utility model;

[0018] Figure 3 It is a kind of disposable multi-layer sealing design endoscope examination water and gas feeding valve's shell's three-dimensional structure enlarged schematic diagram for the utility model;

[0019] Figure 4 It is a kind of disposable multi-layer sealing design endoscope examination water and gas feeding valve's cap's three-dimensional structure enlarged schematic diagram for the utility model;

[0020] Figure 5A kind of three-dimensional structure amplification schematic view of disposable use multilayer sealing design endoscope examination water feeding and air feeding valve's silica gel cover ring is proposed in the utility model;

[0021] Figure 6 A kind of three-dimensional structure amplification schematic view of disposable use multilayer sealing design endoscope examination water feeding and air feeding valve's T-shaped sealing ring is proposed in the utility model;

[0022] Figure 7 A kind of sectional view amplification schematic view of disposable use multilayer sealing design endoscope examination water feeding and air feeding valve's small O-shaped sealing ring is proposed in the utility model;

[0023] Figure 8 A kind of three-dimensional structure amplification schematic view of disposable use multilayer sealing design endoscope examination water feeding and air feeding valve's bowl-shaped sealing ring is proposed in the utility model;

[0024] Figure 9 A kind of three-dimensional structure amplification schematic view of disposable use multilayer sealing design endoscope examination water feeding and air feeding valve's large O-shaped sealing ring is proposed in the utility model;

[0025] In the drawing: 1, stick;2, cover shell;3, cap;4, silica gel cover ring;5, T-shaped sealing ring;6, small O-shaped sealing ring;7, bowl-shaped sealing ring;8, large O-shaped sealing ring;9, spring;11, first annular groove;12, second annular groove;13, third annular groove;14, fourth annular groove;31, threaded hole. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described below in conjunction with the drawings in the embodiments of the utility model clearly and completely, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0027] Please refer to Figures 1-9The utility model provides a technical scheme: a disposable use multilayer sealed design endoscope examination water feeding and air feeding valve, including stick 1, casing 2 and cap 3, the central part of casing 2 is provided with casing through -hole (not marked), stick 1 passes through casing through -hole, and then is fixed with cap 3 after setting spring 9, the outside of casing 2 is provided with silica gel collar 4, the length direction of the outer circumference of stick 1 is sequentially provided with first annular groove 11, second annular groove 12, third annular groove 13, fourth annular groove 14 from below to above, T type sealing ring 5 is provided in first annular groove 11, small O type sealing ring 6 is provided in second annular groove 12, bowl type sealing ring 7 is provided in third annular groove 13, large O type sealing ring 8 is provided in fourth annular groove 14, annular convex (not marked) is all provided on the outer circumferential surface of T type sealing ring 5, small O type sealing ring 6, large O type sealing ring 8, the thickness of annular convex is less than the respective thickness.

[0028] In the embodiment, in the air feeding state during use, the T type sealing ring 5 at the bottom is the first seal, the small O type sealing ring 6 is the second seal, the bowl type sealing ring 7 is the third seal, and the large O type sealing ring 8 is the fourth seal.

[0029] In the embodiment, the cap 3 is provided with a threaded hole 31, and the upper end of the stick 1 is provided with an external threaded column (not shown) matched with the threaded hole 31 to realize the fixed connection of the stick 1 and the cap 3.

[0030] In the embodiment, the bowl type sealing ring is designed with a thin edge, which can effectively allow the gas to pass through the thin edge, and at the same time, when the product is pressed to feed water, the bowl type sealing ring can also play a role in isolating the gas.

[0031] In the embodiment, the stick 1, the casing 2 and the cap 3 are plastic, and the silica gel collar 4, the T type sealing ring 5, the small O type sealing ring 6, the bowl type sealing ring 7 and the large O type sealing ring 8 are silica gel materials, which have lower cost and certain advantages in market promotion and product application popularization, greatly reducing the medical cost of patients.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] 1. Four seals are arranged, the sealing performance is good, and the infection risk of medical staff and patients can be effectively eliminated.

[0034] In the air sending state during use, the T-shaped sealing ring 5 at the bottom is the first sealing, the small O-shaped sealing ring 6 is the second sealing, the bowl-shaped sealing ring 7 is the third sealing, and the large O-shaped sealing ring 8 is the fourth sealing; if the first sealing fails, the small O-shaped sealing ring 6 in the second sealing can still play a sealing role, and the same applies to the subsequent sealing, which can effectively prevent water flow and effectively prevent water and air from flowing out at the same time;

[0035] 2. The bowl-shaped sealing ring is designed with a thin edge, which can effectively allow gas to pass through the thin edge, and at the same time, when the product is pressed to send water, the bowl-shaped sealing ring can also play a role in isolating gas;

[0036] 3. The cost is relatively low, which has certain advantages in market promotion and product application popularization, and greatly reduces the medical cost of patients.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A disposable multi-layer sealed design endoscopy water and air feeding valve, comprising a rod, a sleeve and a cap; a central part of the sleeve is provided with a sleeve through hole; the rod passes through the sleeve through hole, is fixed with the cap after being sleeved with a spring; the outside of the sleeve is sleeved with a silica gel ring; characterized in that: The outer circumference of the rod is sequentially provided with a first annular groove, a second annular groove, a third annular groove and a fourth annular groove from bottom to top in the length direction; the first annular groove is provided with a T-shaped sealing ring; the second annular groove is provided with a small O-shaped sealing ring; the third annular groove is provided with a bowl-shaped sealing ring; and the fourth annular groove is provided with a large O-shaped sealing ring. ​ 2. The single use, multi-layer sealed design endoscopy water and air feeding valve according to claim 1, characterized in that: The outer circumferential surface of the T-shaped sealing ring, the small O-shaped sealing ring and the large O-shaped sealing ring is provided with an annular protrusion; and the thickness of the annular protrusion is smaller than the thickness of each of the T-shaped sealing ring, the small O-shaped sealing ring and the large O-shaped sealing ring.

3. The single use, multi-layer sealed design endoscopy water and air feeding valve of claim 1, wherein: The cap is provided with a threaded hole; and the upper end of the rod is provided with an external threaded column which is matched with the threaded hole to realize the fixed connection of the rod and the cap.

4. The single use, multi-layer sealed design endoscopy water and air feeding valve of claim 1, wherein: The bowl-shaped sealing ring is designed with a thin edge, which can effectively allow gas to pass through the thin edge, and at the same time, the bowl-shaped sealing ring can also play a role in isolating gas when the product is pressed to send water.

5. The single use, multi-layer sealed design endoscopy water and air feeding valve of claim 1, wherein: The rod, the shell and the cap are made of plastic; and the silica gel ring, the T-shaped sealing ring, the small O-shaped sealing ring, the bowl-shaped sealing ring and the large O-shaped sealing ring are made of silica gel.

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