Nozzle device for sterilizer

Abstract

A nozzle device for a sterilizer is used for being connected with a probe of a temperature sensor in an inserted mode. The device comprises a sterilization cartridge, an inner hole formed in one end of the inner wall of the sterilization cartridge, an opening formed in one end of the sterilization cartridge and coaxial with the inner hole, a nozzle detachably connected with the opening, a plurality of positioning convex points uniformly and annularly arranged on the inner wall of one end of the nozzle, and a tee joint detachably connected with one end of the nozzle, wherein the nozzle is of a hollow structure, the nozzle and the inner hole are arranged in the same center line, the probe sequentially penetrates through the tee joint and the nozzle to be inserted into the sterilization cartridge, and the probe and the inner hole are kept at the same center circle point through the positioning convex points; the sensor probe is kept at the central position in the nozzle through the nozzle positioning salient point, so that the head of the temperature sensor probe is prevented from offsetting when the sterilization cartridge is pushed in, the temperature sensor can conveniently enter the guide hole of the sterilization cartridge, and the probe is prevented from being bent or broken.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a nozzle device for a sterilizer. Background Art

[0002] In the medical, biopharmaceutical, and laboratory fields, sterilizers are crucial equipment for ensuring product sterility and safety. During the sterilization process, steam is evenly sprayed into the sterilized cartridge through a nozzle assembly, ensuring that the high-temperature steam effectively penetrates and kills microorganisms within. To monitor steam temperature, a temperature sensor is typically integrated into the nozzle assembly to monitor and adjust the steam temperature in real time to ensure sterilization effectiveness. A common sterilizer nozzle assembly design currently features a tee connector at the rear end of the nozzle. A temperature sensor probe is inserted through the tee and secured to the nozzle via a ferrule. Steam enters through the other end of the tee, flows through the nozzle, and sprays onto the sterilization cartridge. While this design achieves a certain degree of integration between steam injection and temperature monitoring, the nozzle's aperture is typically larger than the temperature sensor probe's diameter, and ensuring the probe is perfectly aligned with the nozzle's center during assembly is difficult. This can lead to uneven force on the probe during insertion into the sterilization cartridge, causing it to deviate from the nozzle's axis, potentially bending or breaking.

[0003] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide a nozzle device for a sterilizer which can effectively solve the above technical problems.

[0005] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0006] A nozzle device for a sterilizer, which is used to be plugged into the probe of a temperature sensor, and is characterized by comprising: a sterilization cassette, an inner hole provided at one end of the inner wall of the sterilization cassette, an opening provided at one end of the sterilization cassette and arranged on the same center line as the inner hole, a nozzle detachably connected to the opening, a plurality of positioning protrusions uniformly provided on the inner wall of one end of the nozzle, and a tee detachably connected to one end of the nozzle; wherein the nozzle is a hollow structure and is arranged on the same center line as the inner hole, the probe sequentially passes through the tee and the nozzle and is inserted into the sterilization cassette, and the probe and the inner hole are maintained at the same center point by the positioning protrusions.

[0007] Furthermore, there are at least three positioning protrusions.

[0008] Furthermore, one end of the positioning protrusion is provided with a curved surface.

[0009] Furthermore, a positioning piece is inserted into one end of the tee.

[0010] Furthermore, a guide channel for the probe to pass through is provided in the positioning member.

[0011] Furthermore, one end of the positioning member is provided with an abutting block for abutting against one end of the tee, and the guide channel passes through the abutting block.

[0012] Furthermore, one end of the tee is provided with a protective shell for fixing the positioning piece.

[0013] Furthermore, the positioning piece and the positioning protrusion are both made of metal.

[0014] Furthermore, one end of the protective shell is provided with an opening for communicating with the interior of the guide channel.

[0015] Furthermore, the nozzle is fixedly connected to the positioning protrusion.

[0016] Compared with the existing technology, the utility model has the following beneficial effects: by positioning the convex point on the nozzle, the sensor probe is kept in the center position inside the nozzle, preventing the head of the temperature sensor probe from being offset when the sterilization cartridge is pushed in, facilitating the temperature sensor to enter the guide hole of the sterilization cartridge, and avoiding the probe from being bent or broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 It is a three-dimensional diagram of the present utility model.

[0019] Figure 2 This is an exploded view of the present invention.

[0020] Figure 3 This is a schematic diagram of the connection structure between the probe and the sterilization cassette of the utility model.

[0021] Figure 4 It is a three-dimensional diagram of the nozzle of the utility model.

[0022] Figure 5 for Figure 4 Schematic diagram of the structure of area A in the middle.

[0023] Figure 6 It is a side view of the nozzle of the utility model.

[0024] Figure 7 It is a cross-sectional view of the positioning member of the utility model.

[0025] In the figure: 1, sterilization cassette; 2, inner hole; 3, opening; 4, nozzle; 5, positioning bump; 6, probe; 7, positioning piece; 8, protective shell; 9, tee; 51, curved surface; 71, guide channel; 81, abutment block; 82, opening. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments.

[0027] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] like Figures 1 to 7 As shown, a nozzle device for a sterilizer is used to be plugged into a probe 6 of a temperature sensor, which includes a sterilization cassette 1, an inner hole 2 provided at one end of the inner wall of the sterilization cassette 1, an opening 3 provided at one end of the sterilization cassette 1 and arranged on the same center line as the inner hole 2, a nozzle 4 detachably connected to the opening 3, a plurality of positioning protrusions 5 evenly arranged on the inner wall of one end of the nozzle 4, and a tee 9 detachably connected to one end of the nozzle 4; wherein, the nozzle 4 is fixedly connected to the positioning protrusions 5, the nozzle 4 is a hollow structure and is arranged on the same center line as the inner hole 2, one end of the probe 6 sequentially passes through the tee 9 and the nozzle 4 and is inserted into the sterilization cassette 1, and the probe 6 and the inner hole 2 are maintained at the same center point by the positioning protrusions 5; in this embodiment, by providing a plurality of positioning protrusions 5 in a ring at one end of the nozzle 4 close to the sterilization cassette 1, the probe 6 is limited in its moving position in the nozzle 4 by abutting against the positioning protrusions 5, so that the probe 6 and the inner hole 2 are kept at the same center point and smoothly guided into the sterilization cassette 1, thereby avoiding bending or breaking of the probe 6.

[0029] Specifically, there are at least three positioning bumps 5, and one end of each positioning bump 5 is provided with a curved surface 51. In this embodiment, the positioning bumps 5 are made of corrosion-resistant stainless steel. There are three positioning bumps 5 in total and they are welded in an annular shape around the inner wall of the nozzle 4. The curved surface 51 allows the probe 6 to be inserted into the nozzle 4 with the circumference of the probe 6 surrounded by the three positioning bumps 5, thereby limiting its movement position.

[0030] Furthermore, a positioning piece 7 is inserted into one end of the tee 9. The positioning piece 7 is made of metal material. A guide channel 71 is provided in the positioning piece 7 for the probe 6 to pass through. An abutment block 81 is provided at one end of the positioning piece 7 for abutting against one end of the tee 9, and the guide channel 71 passes through the abutment block 81. In this embodiment, the positioning piece 7 is made of brass. The positioning piece 7 and the abutment block 81 are an integrated structure. The end of the positioning piece 7 away from the abutment block 81 penetrates into the tee 9 so that one side of the abutment block 81 abuts against the tee 9. The probe 6 passes through the positioning piece 7 through the guide channel 71, thereby Entering the tee 9, it is worth noting that the positioning member 7 is inserted into one end of the tee 9 and the outer surface of the positioning member 7 is in close contact with the inner surface of one end of the tee 9. The channel diameter of the guide channel 71 is slightly larger than the diameter of one end of the probe 6. When the probe 6 penetrates the guide channel 71, the outer surface of the probe 6 contacts the inner surface of the guide channel 71, thereby effectively preventing the probe 6 from shaking in the guide channel 71, and making it convenient for the user to fix the insertion position of the probe 6, and located on the center line of the nozzle 4, preventing the probe 6 from colliding with the inner wall of the nozzle 4, thereby reducing the assembly difficulty of this embodiment.

[0031] One end of the tee 9 is provided with a protective shell 8 for fixing the positioning member 7; in this embodiment, the protective shell 8 is provided on one end of the tee 9 and is screwed to the tee 9, one end of the abutment block 81 abuts against the inner wall of the protective shell 8, and one end of the protective shell 8 is provided with an opening 82 for communicating with the interior of the guide channel 71, and the probe 6 enters the guide channel 71 through the opening 82. By providing the protective shell 8, the positioning member 7 can be prevented from falling off, thereby enhancing the connection structure of this embodiment.

[0032] Working principle: One end of the probe 6 passes through the opening 82 and enters the guide channel 71, and then the outer surface of the probe 6 contacts the inner surface of the guide channel 71, and then the probe 6 passes through the tee 9 in a straight line and enters the nozzle 4. The probe 6 abuts against the positioning protrusion 5, which causes the probe 6 and the inner hole 2 to remain at the same center point and guide them into the sterilization cartridge 1.

[0033] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0034] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A nozzle device for a sterilizer, which is used to be plugged into a probe (6) of a temperature sensor, characterized in that: The invention comprises a sterilization cartridge (1), an inner hole (2) provided at one end of the inner wall of the sterilization cartridge (1), an opening (3) provided at one end of the sterilization cartridge (1) and arranged on the same center line as the inner hole (2), a nozzle (4) detachably connected to the opening (3), a plurality of positioning protrusions (5) uniformly provided on the inner wall of one end of the nozzle (4), and a tee (9) detachably connected to one end of the nozzle (4); wherein the nozzle (4) is a hollow structure and is arranged on the same center line as the inner hole (2), the probe (6) sequentially passes through the tee (9) and the nozzle (4) and is inserted into the sterilization cartridge (1), and the probe (6) and the inner hole (2) are maintained at the same center point by the positioning protrusions (5).

2. A nozzle device for a sterilizer according to claim 1, characterized in that: There are at least three positioning protrusions (5).

3. A nozzle device for a sterilizer according to claim 2, characterized in that: One end of the positioning protrusion (5) is provided with a curved surface (51).

4. A nozzle device for a sterilizer according to claim 3, characterized in that: One end of the tee (9) is plugged with a positioning piece (7).

5. A nozzle device for a sterilizer according to claim 4, characterized in that: A guide channel (71) for the probe (6) to pass through is provided in the positioning member (7).

6. A nozzle device for a sterilizer according to claim 5, characterized in that: One end of the positioning member (7) is provided with an abutting block (81) for abutting against one end of the tee (9), and the guide channel (71) passes through the abutting block (81).

7. A nozzle device for a sterilizer according to claim 6, characterized in that: One end of the tee (9) is sleeved with a protective shell (8) for fixing the positioning member (7).

8. The nozzle device for a sterilizer according to claim 7, characterized in that: The positioning piece (7) and the positioning protrusion (5) are made of metal.

9. A nozzle device for a sterilizer according to claim 8, characterized in that: One end of the protective shell (8) is provided with an opening (82) for communicating with the interior of the guide channel (71).

10. The nozzle device for a sterilizer according to claim 1, characterized in that: The nozzle (4) is fixedly connected to the positioning protrusion (5).

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