Pressing type bottle cap, liquid pumping device and medical solution bottle

Abstract

The utility model discloses a push type bottle cap, a liquid extraction device and a medical solution bottle, and relates to the technical field of packaging bottle, the push type bottle cap comprises a bottle cap body and a push pump assembly, the bottle cap body is provided with a water passing cavity, the push pump assembly is assembled in the water passing cavity, and the push pump assembly comprises a first pipe fitting; wherein the first pipe fitting is arranged on the bottle cap body in a penetrating mode and can move up and down, the upper end of the first pipe fitting extends out of the bottle cap body and is provided with a connector, and the connector is used for being connected with a connector of a needle cylinder injector in an inserted mode. According to the utility model, liquid in the solution bottle can be taken out, and sterile liquid extraction can be realized at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bottles, in particular to a press-type bottle cap, a liquid pumping device and a medical solution bottle. Background Art

[0002] In hospitals, most liquid solutions such as medicines or disinfectants are stored in larger bottles, ranging from 250mL to 500mL. The bottles are wide-mouthed, with sealed aluminum foil on the outside of the bottle mouth and a plastic cover. At present, most of the syringes use a connector to extract liquids such as medicine or disinfectant from the solution bottle by pulling the piston rod. However, due to the limited length of the connector and the empty barrel, it is impossible to penetrate into the solution bottle to take out all the liquid in the solution bottle, and it is easy to contaminate the liquid in the solution bottle or the syringe. In response to the above problems, there is currently a method of inserting a connector or a needle into a sealed aluminum foil, and then tilting the solution bottle to take out the liquid, but this method has the problem of dripping and leakage; a small number of empty barrels are used to extract liquids such as medicine or disinfectant from the solution bottle by pouring from the back of the empty barrel, but due to the limited amount of empty barrels added, and a certain space needs to be reserved for placing the piston, the syringe still needs to be vented after adding liquid, and the solution contaminates the liquid in the solution or the syringe; a small number of solutions are tilted, and the connector or needle is inserted into the sealed aluminum foil to extract liquid, but it has the problem of leakage. Therefore, in response to the above problems, we propose a push-type bottle cap, a liquid extraction device and a medical solution bottle, which can extract the liquid in the solution bottle while achieving aseptic extraction. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a push-type bottle cap, a liquid extraction device and a medical solution bottle, which can take out the liquid in the solution bottle and achieve aseptic liquid extraction at the same time, and can effectively solve the technical problems in the background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a push-type bottle cap, a liquid pumping device and a medical solution bottle, wherein the push-type bottle cap includes a bottle cap body and a push pump assembly, the bottle cap body is provided with a water flow cavity, and the water flow cavity is equipped with a push pump assembly; wherein the push pump assembly includes a first pipe fitting, the upper end of the first pipe fitting extends to the outside of the bottle cap body, and is provided with a connector, which is used to plug the connector of the syringe.

[0005] Furthermore, a step surface is provided at the connection between the connector and the first pipe fitting for abutting against the end surface of the connector; a sealing ring 1 is fixedly provided on the outer wall of the connector for abutting against the inner wall of the connector.

[0006] Furthermore, the pressing pump assembly also includes a second valve ball, the second valve ball is assembled inside the connecting head, and a plug is fixedly provided for placing the second valve ball and preventing the second valve ball from falling out, and the plug is provided with a water outlet.

[0007] Furthermore, the plug is detachably fixed inside the connector by means of interference fit or threaded connection.

[0008] Furthermore, the plug is made of rubber.

[0009] Furthermore, the pressing pump assembly also includes a second pipe fitting, a spring, a piston, a first valve ball and a conduit. The upper end of the second pipe fitting is fixedly sleeved with a piston for opening and closing the second pipe fitting, and the first pipe fitting is provided with a top holding portion for moving the piston downward; a spring for moving the first pipe fitting upward is arranged between the lower end of the first pipe fitting and the inner wall of the water passage chamber, the first valve ball can be movably assembled at the water inlet end of the water passage chamber, and the water inlet end of the water passage chamber is also connected to the conduit.

[0010] Furthermore, a leak-proof groove is provided on the outer side of the connector.

[0011] The present invention further provides a liquid extraction device, comprising a syringe and a push-type bottle cap, wherein the connector of the syringe can be detachably plugged into the connector.

[0012] The present invention further provides a container, comprising a bottle body and a push-type bottle cap, wherein the bottle cap body is detachably fixedly connected to the bottle mouth of the bottle body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] First, in the utility model, a push-type bottle cap includes a bottle cap body and a push pump assembly, the bottle cap body is provided with a water passage cavity, and the inside of the water passage cavity is equipped with a push pump assembly; wherein the push pump assembly includes a first pipe fitting, the first pipe fitting is movably arranged in the bottle cap body up and down, the upper end of the first pipe fitting extends to the outside of the bottle cap body, and is provided with a connector, the connector is used to plug the connector of the syringe, and the setting of the connector is conducive to the connection of the connector of the syringe, thereby facilitating the addition of liquid into the syringe.

[0015] Secondly, in the utility model, a step surface is provided at the connection between the connector and the first pipe fitting for abutting the end face of the syringe connector, and a sealing ring 1 is fixedly provided on the outer wall of the connector for abutting the inner wall of the connector; the setting of the step surface is conducive to better clamping the syringe, and the setting of the sealing ring 1 is conducive to sealing the connection between the syringe and the push-type bottle cap to prevent liquid from leaking from the connection.

[0016] Third, in the utility model, the pressing pump assembly also includes a second valve ball, the second valve ball is assembled inside the connecting head, and a plug is provided for preventing the second valve ball from falling out, the plug is provided with a water outlet; and the plug is detachably fixed to the inside of the connecting head by interference fit or threaded connection, the plug is a rubber product, and the setting of the plug facilitates the placement of the second valve ball into the connecting head and prevents the second valve ball from falling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art description.

[0018] Figure 1 It is a schematic diagram of the bottle body and the push-type bottle cap after being assembled in the utility model.

[0019] Figure 2 It is a cross-sectional view of the bottle body and the push-type bottle cap after being assembled in the utility model; wherein the dotted line represents the syringe.

[0020] Figure 3 yes Figure 2 A partial enlarged view of the .

[0021] Reference numerals:

[0022] 1. Bottle body; 2. Push-type bottle cap; 21. Catheter; 22. First valve ball; 23. Bottle cap body; 230. Water passage chamber; 24. Spring; 25. Second pipe fitting; 251. Abutment portion; 26. Piston; 261. Holding portion; 27. First pipe fitting; 28. Connector; 281. Sealing ring 1; 282. Step surface; 283. Plug; 284. Second valve ball; 285. Water outlet; 286. Groove; a. Syringe syringe; a1. Empty barrel; a2. Piston; a3. Piston rod; a11. Connector; DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but only represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the present utility model, unless otherwise clearly stipulated and limited, terms such as "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the mutual interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0025] In the present invention, unless otherwise expressly provided and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is at a smaller horizontal height than the second feature.

[0026] like Figure 1-Figure 3As shown, a medical solution bottle includes a bottle body 1 and a push-type bottle cap 2, wherein the push-type bottle cap 2 includes a bottle cap body 23 and a push pump assembly, the bottle cap body 23 is provided with a water passage cavity 230, and the push pump assembly is assembled and arranged in the water passage cavity 230, wherein the push pump assembly includes a first valve ball 22, a spring 24, a first pipe fitting 27, a piston 26, a second pipe fitting 25, a second valve ball 284 and a connector 28, the upper end of the first pipe fitting 27 extends to the outside of the bottle cap body 23, and is provided with a connector 28, wherein a second valve ball 284 which can move up and down is arranged in the connector 28, and a groove 286 for preventing liquid leakage is arranged outside the connector 28. The upper end of the second pipe 25 is fixedly plugged into the lower end of the first pipe 27. The outer portion of the second pipe 25 is movably sleeved with a piston 26 for opening and closing the second pipe 25. The first pipe 27 is provided with a supporting portion 261 for moving the piston 26 downward. A spring 24 for moving the first pipe 27 upward is provided between the lower end of the first pipe 27 and the inner wall of the water passage chamber 230. The first valve ball 22 is movably assembled at the lower end of the water passage chamber 230, and the lower end of the water passage chamber 230 is also connected to a conduit 21. The push-type bottle cap 2 is provided with a bottle cap (not shown in the figure).

[0027] Preferably, the piston is made of polyethylene resin, or polypropylene, polystyrene or other plastic materials, which can be selected by those skilled in the art according to actual needs. The materials of the first pipe and the second pipe are polypropylene, or polystyrene, polyester or other materials, which can be selected by those skilled in the art according to actual needs.

[0028] Preferably, the volume of the water passage chamber 230 is 5 mL. Since the commonly used liquid extraction volumes are 5 mL, 10 mL, etc., setting it to 5 mL is convenient for whole-pressing and whole-extraction, and convenient for controlling the amount of liquid extracted. The volume of the water passage chamber 230 can be adjusted by technical personnel in this field according to actual needs.

[0029] Preferably, the groove 286 is made of a soft material and is disposed 0.05-0.2 cm below the step surface 282 to prevent the groove from affecting the push-type bottle cap 2 during pressing. The specific position of the groove 286 can be adjusted by those skilled in the art according to actual needs.

[0030] like Figure 2 , Figure 3As shown, the syringe a includes an empty barrel a1, a piston a2, a piston rod a3 and a joint a11, the inner wall of the joint a11 is provided with a thread (not shown in the figure), the connection between the connector 28 and the first pipe 27 is provided with a step surface 282 for abutting against the end face of the joint a11 of the syringe a, and the outer wall of the connector 28 is fixedly provided with a sealing ring 1 281 for abutting against the inner wall of the syringe joint a11, and the setting of the sealing ring 1 281 is conducive to maintaining the sealing of the connection between the joint a11 of the syringe a and the connector 28, thereby preventing leakage. A plug 283 for preventing the second valve ball 284 from falling out is provided at the outlet of the connector 28, and the plug 283 is provided with a water outlet 285.

[0031] Preferably, the water outlet hole 285 is a hole with a larger upper end and a lower lower end, and the diameter of the second valve ball 284 is larger than the lower end diameter of the water outlet hole 285, which is helpful to prevent the second valve ball 284 from falling out. The shape of the water outlet hole 285 includes but is not limited to a hole with a larger upper end and a lower lower end, and those skilled in the art can adjust the shape of the water outlet hole according to actual needs. The setting of the second valve ball 284 is helpful to stop adding liquid to the syringe a immediately when the pressing stops.

[0032] Preferably, the plug 283 is detachably fixed inside the connector 28 by means of interference fit. The detachable method may also be threaded connection, snap-on connection, etc., and those skilled in the art may choose according to actual needs.

[0033] Preferably, the plug 283 is made of a soft rubber material, and the soft material may also be silica gel, silicone rubber and other materials. Those skilled in the art may select different materials according to actual needs.

[0034] Preferably, the first valve ball and the second valve ball are made of glass, or may be made of steel ball, stainless steel or plastic, which can be adjusted by those skilled in the art according to usage requirements.

[0035] like Figure 1-Figure 3 As shown, the method of using the utility model is as follows: plug the connector a11 of the syringe a into the connector 28 of the push-type bottle cap 2; hold the empty barrel a1 and press it repeatedly for multiple times, and rely on the pressing pump assembly to intermittently draw the liquid from the bottle body 1 upward into the syringe a; after the syringe a is filled with liquid, remove the syringe a from the connector 28.

[0036] The specific working principle of the pressing pump assembly is as follows: when pressure is applied to move the empty cylinder a1 downward, initially only the first pipe fitting 27 and the second pipe fitting 25 are driven to move downward, and the piston 26 remains stationary under the internal pressure of the water passage chamber and the friction force, so that the water inlet on the side wall of the first pipe fitting 27 and the piston 26 are staggered, and the first pipe fitting 27 is switched to the conducting state; after the second pipe fitting 25 abuts against the piston 26, the piston 26 moves downward together with the first pipe fitting 27 and the second pipe fitting 25, and the downward movement of the piston 26 compresses the space of the water passage chamber 230, and the water inlet end is blocked by the first valve ball 21, so that the liquid inside the water passage chamber 230 enters the water inlet on the side wall of the second pipe fitting 25, passes through the first pipe fitting 27 and the second pipe fitting 25, and pushes the second valve ball 284 upward, and finally enters the syringe a;

[0037] After the pressure is released, under the action of the spring 24, initially only the second tube 25, the first tube 27 and the syringe a are driven to move upward, and the second valve ball 284 falls back; after the second tube 25 abuts against the piston 26, the water inlet on the side wall of the second tube 25 is aligned with the piston 26, the first tube 27 is switched to the blocking state, and the piston 26 moves upward with the first tube 27, the second tube 25 and the syringe a, the space of the water chamber 230 increases, negative pressure is generated, the first valve ball 21 moves upward, the water inlet end is connected, and the liquid inside the bottle body 1 is drawn into the water chamber 230.

[0038] The utility model further discloses and protects a push-type bottle cap, the structure of which is the push-type bottle cap 2 as described above, which will not be described in detail here.

[0039] The utility model also discloses and protects a liquid extraction device, including a push-type bottle cap 2 and a syringe a as described above, and its specific structure is not repeated here.

[0040] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A push-type bottle cap, comprising a bottle cap body (23) and a push pump assembly, wherein the bottle cap body (23) is provided with a water passage cavity (230), and the push pump assembly is assembled inside the water passage cavity (230); characterized in that: The pressing pump assembly includes a first tube (27), which is movably arranged in the bottle cap body (23) up and down, and the upper end of the first tube (27) extends to the outside of the bottle cap body (23) and is provided with a connector (28) for plugging into the connector (a11) of the syringe (a).

2. A push-type bottle cap according to claim 1, characterized in that: A step surface (282) is provided at the connection point between the connecting head (28) and the first pipe member (27) for abutting against the end surface of the connecting head (a11); a sealing ring (281) is fixedly provided on the outer wall of the connecting head (28) for abutting against the inner wall of the connecting head (a11).

3. The push-type bottle cap according to claim 1, characterized in that: The pressing pump assembly also includes a second valve ball (284). The second valve ball (284) is assembled inside the connecting head (28), and a plug (283) is fixedly provided to prevent the second valve ball (284) from falling out. The plug (283) is provided with a water outlet hole (285).

4. A push-type bottle cap according to claim 3, characterized in that: The plug (283) is detachably fixed inside the connector (28) by means of interference fit or threaded connection.

5. The push-type bottle cap according to claim 4, characterized in that: The plug (283) is made of rubber.

6. A push-type bottle cap according to any one of claims 1 to 5, characterized in that: The pressing pump assembly also includes a second pipe (25), a spring (24), a piston (26), a first valve ball (22) and a conduit (21); the upper end of the second pipe (25) is fixedly plugged into the lower end of the first pipe (27); the outer portion of the second pipe (25) is movably sleeved with the piston (26) for opening and closing the second pipe (25); the first pipe (27) is provided with a supporting portion (261) for moving the piston (26) downward; the spring (24) for moving the first pipe (27) upward is provided between the lower end of the first pipe (27) and the inner wall of the water passage chamber (230); the first valve ball (22) is movably assembled on the water inlet end of the water passage chamber (230), and the water inlet end of the water passage chamber (230) is also connected to the conduit (21).

7. The push-type bottle cap according to claim 1, characterized in that: The outer side surface of the connecting head (28) is provided with a groove (286) for preventing leakage.

8. A liquid extraction device, characterized in that: It comprises a syringe (a) and a push-type bottle cap as described in any one of claims 1 to 7, wherein the connector (a11) of the syringe (a) can be detachably plugged into the connector (28).

9. A medical solution bottle, comprising a bottle body (1), characterized in that: It also comprises a push-type bottle cap as described in any one of claims 1 to 7, wherein the bottle cap body (23) is detachably fixedly connected to the bottle mouth of the bottle body (1).

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