Preassembled guide pipe barrel

Abstract

The utility model provides a preassembled conduit barrel. The preassembled conduit barrel comprises a barrel body, an inner cover, an inner tube and an outer cover, the barrel body is provided with an accommodating space for storing liquid, and a liquid outlet hole for communicating the accommodating space with the outside is formed in the barrel body; the inner cover and the liquid outlet hole are assembled in a covering mode, the inner cover is provided with an inner connector extending into the containing space and an outer connector deviating from the containing space, and the inner connector is communicated with the outer connector. One end of the inner pipe is connected to the internal interface, and the other end extends into the accommodating space; the external interface is used for connecting a liquid extraction conduit or a liquid extraction pump; the outer cover is detachably connected to the barrel body and covers the outer side of the inner cover in a sealed mode. According to the pre-installed catheter barrel, the catheter does not need to be pulled out and then placed into a new liquid storage barrel, a user can be prevented from making direct contact with stored liquid with the hand, the risk that the stored liquid is externally exposed can be reduced, and the pre-installed catheter barrel is more environmentally friendly and beneficial to the body health of the user.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid storage, and in particular relates to a pre-installed catheter barrel. Background Art

[0002] In some biochemical laboratories, liquid storage barrels are often needed to store raw materials, and the liquid storage barrels are connected to a liquid pump or a liquid pumping device in the form of a conduit to achieve the function of extracting the stored raw materials.

[0003] In the related art, the catheter is directly extended into the liquid storage barrel. When the raw materials are used up and the liquid storage barrel needs to be replaced, the catheter needs to be pulled out from the empty liquid storage barrel and then put into the new liquid storage barrel. In this process, the catheter will be directly exposed to the outside world, and the user's hands can easily touch the catheter. This may cause defects such as raw materials being contaminated, raw materials dripping or volatilizing to pollute the environment, and affecting the user's health. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a pre-installed catheter barrel, aiming to solve at least one of the defects of the liquid storage barrel in the background technology.

[0005] In order to solve the above technical problems, the utility model is implemented as follows: providing a pre-installed catheter barrel, which includes a barrel body, an inner cover, an inner tube and an outer cover; the barrel body has a receiving space for storing liquid, and the barrel body is provided with a liquid outlet connecting the receiving space and the outside; the inner cover and the liquid outlet cover are assembled, the inner cover is provided with an internal interface extending into the receiving space and an external interface away from the receiving space, and the internal interface is connected to the external interface; one end of the inner tube is connected to the internal interface and the other end extends into the bottom of the receiving space, and the external interface is used to connect a liquid extraction catheter or a liquid extraction pump; the outer cover is detachably connected to the barrel body and seals the outer side of the inner cover.

[0006] Furthermore, the inner cover includes an annular outer wall, an annular inner wall connected to the bottom side of the annular outer wall, an annular inner wall connected to the inner circle of the annular inner wall, and a connecting plate connected to the top side of the annular inner wall, the internal interface is connected to the inner side of the connecting plate, the external interface is connected to the outer side of the connecting plate, and the annular outer wall and the inner wall of the liquid outlet are sealed and connected.

[0007] Furthermore, the top side of the barrel body protrudes or is concave to form a liquid outlet end, the liquid outlet hole is arranged in the liquid outlet end, the inner cover also includes a limiting edge connected to the top side of the annular outer wall and extending outward, and the limiting edge abuts against the top side of the liquid outlet end; the outer cover is threadedly connected to the outside of the liquid outlet end and seals the end of the liquid outlet end.

[0008] Furthermore, at least two sealing edges are arranged around the outer circumference of the annular outer wall, and the sealing edges are interference-fitted with the inner wall of the liquid outlet hole.

[0009] Furthermore, the pre-installed catheter barrel further includes a sealing film sandwiched between the annular outer wall and the inner wall of the liquid outlet; or, the pre-installed catheter barrel further includes a sealing film that seals the external interface.

[0010] Furthermore, a plurality of protrusions having bottom-side guiding slopes are provided on the circumferential side of the internal interface; and the external interface comprises an inner ring coaxial with the internal interface and an outer ring coaxially arranged outside the inner ring at intervals.

[0011] Furthermore, the bottom side of the receiving space of the barrel body has a gathering area whose height is lower than other positions, and the bottom end of the inner tube is located in the gathering area.

[0012] Furthermore, a concave handle is provided on the top side of the barrel body, and the handle is flush with the top side of the barrel body; and a plurality of evenly arranged supporting feet are provided around the bottom side of the barrel body.

[0013] Furthermore, at least two reinforcing ribs spaced apart in the vertical direction are arranged around the circumference of the barrel body.

[0014] Furthermore, the inner cover is also provided with an air pressure balance hole connecting the containing space and the outside.

[0015] Compared with the prior art, the pre-installed catheter barrel in the utility model has the following beneficial effects:

[0016] The inner cover is assembled on the liquid outlet, and the inner cover is provided with an internal interface, the inner tube is connected through the internal interface and extends into the bottom of the receiving space, the outer cover is detachably connected to the barrel body and seals the outer side of the inner cover, so the liquid stored in the receiving space can be reliably protected to prevent the liquid from overflowing or volatilizing. After opening the outer cover, the liquid extraction catheter or the liquid extraction pump is connected to the external interface to extract the liquid in the barrel body, and when the liquid storage barrel needs to be replaced, it is only necessary to disconnect the liquid extraction catheter or the liquid extraction pump from the external interface, and then reconnect the liquid extraction catheter or the liquid extraction pump to the external interface of the new pre-installed catheter barrel. Therefore, the pre-installed catheter barrel of this scheme does not need to extract the catheter and then put it into a new liquid storage barrel, which can avoid the user directly touching the stored liquid with his hands, and can reduce the risk of external exposure of the stored liquid, which is more environmentally friendly and beneficial to the health of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the pre-installed catheter barrel in the first perspective of the embodiment of the utility model;

[0018] Figure 2It is a schematic diagram of the overall structure of the pre-installed catheter barrel in the second viewing angle in the embodiment of the utility model;

[0019] Figure 3 The pre-installed catheter barrel in the embodiment of the utility model Figure 1 Cross-sectional view in the direction of AA.

[0020] In the accompanying drawings, each figure mark represents: 1. barrel body; 11. handle; 12. support foot; 13. reinforcing rib; 2. inner cover; 21. internal interface; 22. external interface; 3. outer cover. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] In this embodiment, combined with Figure 1-3 The pre-installed catheter barrel includes a barrel body 1, an inner cover 2, an inner tube and an outer cover 3; the barrel body 1 has a receiving space for storing liquid, and the barrel body 1 is provided with a liquid outlet connecting the receiving space and the outside; the inner cover 2 and the liquid outlet cover are assembled, the inner cover 2 is provided with an internal interface 21 extending into the receiving space and an external interface 22 away from the receiving space, and the internal interface 21 and the external interface 22 are connected; one end of the inner tube is connected to the internal interface 21 and the other end extends into the receiving space, and the external interface 22 is used to connect a liquid extraction catheter or a liquid extraction pump; the outer cover 3 is detachably connected to the barrel body 1 and seals the outer side of the inner cover 2.

[0023] In this solution, the inner cover 2 is assembled on the liquid outlet, and the inner cover 2 is provided with an internal interface 21, the inner tube is connected through the internal interface 21 and extends into the bottom of the receiving space, the outer cover 3 is detachably connected to the barrel body 1 and seals the outer side of the inner cover 2, so that the liquid stored in the receiving space can be reliably protected to prevent the liquid from overflowing or volatilizing. After opening the outer cover 3, the liquid extraction catheter or the liquid extraction pump is connected to the external interface 22 to extract the liquid in the barrel body 1, and when the liquid storage barrel needs to be replaced, it is only necessary to disconnect the liquid extraction catheter or the liquid extraction pump from the external interface 22, and then reconnect the liquid extraction catheter or the liquid extraction pump to the external interface 22 of the new pre-installed catheter barrel. Therefore, the pre-installed catheter barrel of this solution does not need to extract the catheter and then put it into a new liquid storage barrel, which can avoid the user directly touching the stored liquid with his hands, and can reduce the risk of external exposure of the stored liquid, which is more environmentally friendly and beneficial to the health of the user.

[0024] It should be understood that in this embodiment, the inner tube is not shown, and the inner tube can be a hard tube or a soft tube, as long as it can be connected to the internal interface 21 and extend into the bottom of the receiving space, so as to guide the stored liquid at the bottom of the receiving space to the external interface 22. When the inner tube is a hose, in some embodiments, the length of the inner tube can be greater than the height of the receiving space, and the end of the hose away from the internal interface 21 can be set with a larger weight, such as hanging heavy objects, embedding high-density components, etc., so that one end of the hose can be more easily located at the bottom of the receiving space, so as to make full use of the stored liquid.

[0025] Furthermore, the inner cover 2 includes an annular outer wall, an annular inner wall connected to the bottom side of the annular outer wall, an annular inner wall connected to the inner ring of the annular inner wall, and a connecting plate connected to the top side of the annular inner wall, the internal interface 21 is connected to the inner side of the connecting plate, the external interface 22 is connected to the outer side of the connecting plate, and the annular outer wall is sealed to the inner wall of the liquid outlet. The structural setting of the inner cover 2 can make it easier to fit tightly with the inner wall of the liquid outlet to ensure sealing, and the outside of the internal interface 21 can have a clearance space to facilitate the connection between the inner tube and the internal interface 21.

[0026] Furthermore, the top side of the barrel body 1 is protruded or concave to form a liquid outlet, and the liquid outlet hole is set in the liquid outlet, and the inner cover 2 also includes a limiting edge connected to the top side of the annular outer wall and extending outward, and the limiting edge abuts against the top side of the liquid outlet; the outer cover 3 is threadedly connected to the outer side of the liquid outlet and covers the end of the liquid outlet. The protruding liquid outlet can make the liquid outlet position more obvious, and the inner cover 2 and the liquid outlet hole of the liquid outlet are connected more conveniently and quickly, and it is also conducive to ensuring the sealing.

[0027] Furthermore, at least two sealing edges are arranged around the outer circumference of the annular outer wall, and the sealing edges and the inner wall of the liquid outlet hole are interference fit. Specifically, in this embodiment, two sealing edges are arranged, and in some embodiments, the sealing edges can be adaptively arranged according to actual conditions, for example, three, four, five, etc. can be arranged. Through the interference fit between the sealing edges and the inner wall of the liquid outlet hole, the sealing between the inner cover 2 and the inner wall of the liquid outlet hole can be further ensured.

[0028] Furthermore, the pre-installed catheter barrel also includes a sealing film sandwiched between the annular outer wall and the inner wall of the liquid outlet hole. The provision of the sealing film further ensures the sealing performance, can prevent the liquid in the barrel from volatilizing and leaking, and protect the health of the user.

[0029] Furthermore, the circumference of the internal interface 21 is provided with a plurality of protrusions having a bottom guide slope; the external interface 22 includes an inner ring coaxial with the internal interface 21 and an outer ring coaxially arranged outside the inner ring at intervals. When the inner tube is connected to the internal interface 21, the plurality of protrusions and the inner wall of the inner tube are interference fit, thereby ensuring the tightness of the connection between the inner tube and the internal interface 21. The height of the outer ring is greater than that of the inner ring, and the liquid extraction conduit or liquid extraction pump is connected to the inner ring. In this way, the outer ring can prevent the user's hand from touching the inner ring, which protects the user on the one hand and prevents the inner ring from being contaminated on the other hand. In addition, the outer ring can also limit the leakage of the inner ring liquid to other places of the inner cover 2 when leakage occurs.

[0030] Furthermore, the bottom side of the receiving space of the barrel body 1 has a gathering area whose height is lower than the rest of the position, and the bottom end of the inner tube is located in the gathering area. Preferably, the gathering area is located in the middle, that is, the height of the middle is less than the surrounding height, so that the stored liquid is more easily gathered in the middle. In this embodiment, the bottom end of the inner tube is directly opposite to the middle of the bottom side of the receiving space, which is conducive to improving the utilization rate of the stored liquid and reducing residue. In some embodiments, the gathering area can also be set in other areas, such as the edge area, the eccentric position of the middle area, etc., as long as the liquid can be gathered to facilitate the absorption of the inner tube.

[0031] Furthermore, a concave handle 11 is provided on the top side of the barrel body 1, and the handle 11 is flush with the top side of the barrel body 1; a plurality of evenly arranged legs 12 are provided around the bottom side of the barrel body 1. The provision of the handle 11 can facilitate transportation on the one hand, and on the other hand, can facilitate the stacking of pre-installed catheter barrels of the same type. The provision of the legs 12 can facilitate stacking and ensure stable performance. Preferably, the two opposite sides of the top side of the barrel body 1 are respectively provided with concave handles 11, and are symmetrically arranged, so that it is convenient to apply force. In some embodiments, the liquid outlet on the top side of the barrel body 1 may not be arranged in the middle, but on one side, and the above-mentioned handle 11 is provided on the other side of the top side of the barrel body 1.

[0032] Furthermore, at least two reinforcing ribs 13 are arranged around the circumference of the barrel body 1 and are spaced apart in the vertical direction. Specifically, in the present embodiment, a reinforcing rib 13 is respectively arranged at the bottom, the middle, and the top of the barrel body 1. In other embodiments, the number of reinforcing ribs 13 can be adaptively arranged according to actual conditions, such as two, four, five, etc. By setting the reinforcing ribs 13, the structural strength of the barrel body 1 can be made higher, and the barrel body can be prevented from being too soft. It should be understood that the shape of the barrel body 1 is not limited. For example, its cross-section can be circular, square, hexagonal, elliptical, etc. As long as it can hold liquid, it is within the protection scope of the present application.

[0033] Furthermore, the inner cover 2 is also provided with an air pressure balance hole connecting the receiving space and the outside. The provision of the air pressure balance hole can facilitate the discharge of the internal storage liquid and reduce the resistance caused by the pressure difference. Of course, in some embodiments, an air outlet hole can also be provided on the barrel body, for example, at the top.

[0034] In some embodiments, the barrel body 1 may be made of a transparent material, so that the user can easily observe the amount of liquid stored inside.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pre-installed catheter barrel, characterized in that: It includes a barrel body, an inner cover, an inner tube and an outer cover; The barrel body has a receiving space for storing liquid, and the barrel body is provided with a liquid outlet hole connecting the receiving space with the outside; The inner cover and the liquid outlet cover are assembled together, the inner cover is provided with an internal interface extending into the receiving space and an external interface away from the receiving space, and the internal interface is communicated with the external interface; One end of the inner tube is connected to the internal interface and the other end extends into the bottom of the receiving space, and the external interface is used to connect a liquid extraction catheter or a liquid extraction pump; The outer cover is detachably connected to the barrel body and seals the outer side of the inner cover.

2. The pre-installed catheter barrel according to claim 1, characterized in that: The inner cover includes an annular outer wall, an annular inner wall connected to the bottom side of the annular outer wall, an annular inner wall connected to the inner ring of the annular inner wall, and a connecting plate connected to the top side of the annular inner wall, the internal interface is connected to the inner side of the connecting plate, the external interface is connected to the outer side of the connecting plate, and the annular outer wall and the inner wall of the liquid outlet are sealed.

3. The pre-installed catheter barrel according to claim 2, characterized in that: The top side of the barrel body is protruding or concave to form a liquid outlet end, the liquid outlet hole is arranged in the liquid outlet end, and the inner cover also includes a limiting edge connected to the top side of the annular outer wall and extending outward, and the limiting edge abuts against the top side of the liquid outlet end; The outer cover is threadedly connected to the outer side of the liquid outlet and is sealed to the end of the liquid outlet.

4. The pre-installed catheter barrel according to claim 3, characterized in that: At least two sealing edges are arranged around the outer circumference of the annular outer wall, and the sealing edges and the inner wall of the liquid outlet hole are interference fit.

5. The pre-installed catheter barrel according to claim 3, characterized in that: The pre-installed catheter barrel further includes a sealing film sandwiched between the annular outer wall and the inner wall of the liquid outlet hole; or, the pre-installed catheter barrel further includes a sealing film that seals the external interface.

6. The pre-installed catheter barrel according to claim 1, characterized in that: The circumferential side of the internal interface is provided with a plurality of protrusions with bottom-side guiding inclined surfaces; the external interface comprises an inner ring coaxial with the internal interface and an outer ring coaxially arranged outside the inner ring at intervals.

7. The pre-installed catheter barrel according to claim 1, characterized in that: The bottom side of the receiving space of the barrel body has a gathering area whose height is lower than other positions, and the bottom end of the inner tube is located in the gathering area.

8. The pre-installed catheter barrel according to claim 1, characterized in that: A concave handle is provided on the top side of the barrel body, and the handle is flush with the top side of the barrel body; a plurality of evenly arranged supporting feet are provided around the bottom side of the barrel body.

9. The pre-installed catheter barrel according to claim 1, characterized in that: At least two reinforcing ribs spaced apart in the vertical direction are arranged around the circumference of the barrel body.

10. The pre-installed catheter barrel according to claim 1, characterized in that: The inner cover is also provided with an air pressure balance hole connecting the receiving space with the outside.

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