Sight glass with cleaning function
By designing a structure with built-in cleaning tubes and support bosses on the sight glass, the problem of difficult cleaning of sight glass is solved, achieving convenient cleaning and good sealing, and is suitable for centrifuges and other applications.
Patent Information
- Application Number
- CN202422722969.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The existing sight glass is difficult to clean in a centrifuge, requiring additional holes to install cleaning pipelines, resulting in complex structure, inconvenient installation and disassembly, and inconvenience in use, especially in space-constrained environments.
Design a sight glass with a cleaning function, which uses a built-in cleaning tube that can be detachably connected through a mounting hole. The cleaning tube is filled with cleaning fluid and then dried. Combined with a support boss, a sealing groove, and threaded components, it achieves simple installation and a sealing effect.
It enables convenient cleaning and drying of the sight glass, avoids additional openings, has a simple and compact structure, is suitable for space-constrained occasions, and has good sealing performance to prevent material and liquid leakage.
Smart Images

Figure CN223616410U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sight glass technology, specifically to a sight glass with a cleaning function. Background Technology
[0002] Sight glasses are used in many applications to facilitate observation of internal conditions. For example, in centrifuges, the sight glass allows for observation of material separation and the presence of blockages or stagnant material. Centrifuges are generally used for solid-liquid separation, and liquid splashing can easily obscure the view through the sight glass. Current technology cleans the sight glass using a bypass system, but this requires additional holes in the casing, which is difficult to manufacture, cumbersome to install and disassemble, structurally complex, inconvenient to use, and unsuitable for applications with limited space. Therefore, a new technical solution is urgently needed to address at least one of these problems. Summary of the Invention
[0003] The purpose of this invention is to provide a sight glass with a cleaning function, which eliminates the need for a separate cleaning pipeline and allows for cleaning of the sight glass through its built-in cleaning pipeline. The structure is simple and easy to install and disassemble.
[0004] To achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by this utility model is: a sight glass with a cleaning function, characterized in that it includes a glass body and a cleaning tube, the glass body is provided with an axially penetrating mounting hole, the cleaning tube is detachably inserted into the mounting hole, the cleaning tube is provided with an axially extending inlet hole at its center, the cleaning tube wall is provided with a plurality of inclined outlet holes penetrating through it, the outlet holes are connected to the inlet holes, and the outlet holes face the glass body.
[0005] As a preferred technical solution, a support boss is provided on the outer periphery of the cleaning tube, and the support boss abuts against the lower side of the glass body.
[0006] As a preferred technical solution, the cleaning tube is provided with a threaded part, and a fastening nut is fitted on the threaded part, with the fastening nut abutting against the upper side of the glass body.
[0007] As a preferred technical solution, an annular sealing groove is provided on the upper side of the support boss, and a sealing element is embedded in the sealing groove.
[0008] As a preferred technical solution, the angle between the central axis of the outlet hole and the glass body is 14°-35°.
[0009] As a preferred technical solution, the sealing element is an O-ring.
[0010] As a preferred technical solution, the outer periphery of the cleaning tube has a stepped structure.
[0011] As a preferred technical solution, the lower side of the support boss is provided with an inclined surface.
[0012] The beneficial effects of this utility model are:
[0013] 1) A certain pressure of cleaning fluid is introduced into the cleaning tube. The cleaning fluid is sprayed from the outlet to the lower side of the glass body, thereby cleaning the residual liquid on the lower side of the glass body. The cleaning tube is detachably connected to the glass body, and there is no need to open the hole in the housing to install a separate cleaning pipeline. After cleaning, a certain pressure of gas is introduced into the cleaning tube to dry the lower side of the glass body. The structure is simple and compact, easy to install and disassemble, and has good applicability.
[0014] 2) The support boss supports the glass body, and the fastening nut and threaded part have a good fastening effect, making installation and disassembly more convenient. The support boss and fastening nut work together to better fix the glass body.
[0015] 3) An O-ring is embedded in the sealing groove to improve the sealing performance, so that fine particles and liquids are less likely to enter the mounting hole and less likely to leak out from the mounting hole;
[0016] 4) Depending on the size of the glass body, a cleaning effect is better when the angle between the outlet and the glass body is within 14°-35°.
[0017] 5) The inclined surface can play a reinforcing role, making the supporting boss less prone to deformation, and the droplets slide off the inclined surface, making it less likely to stick to the wall. Attached Figure Description
[0018] Figure 1 This is a structural diagram of a fixed support block provided in one embodiment of the present invention;
[0019] exist Figure 1 In the middle, 1. Glass body; 2. Cleaning tube; 201. Inlet hole; 202. Outlet hole; 203. Support boss; 204. Threaded part; 205. Clearance area; 3. Nut; 4. Seal. Detailed Implementation
[0020] The present invention will now be further described with reference to the accompanying drawings.
[0021] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "head," "tail," "top," "bottom," "left," "right," "front," "rear," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0022] Please see Figure 1 This utility model provides a sight glass with a cleaning function, including a glass body 1 and a cleaning tube 2. The glass body 1 is provided with an axially penetrating mounting hole (not shown). The cleaning tube 2 is detachably inserted into the mounting hole. The cleaning tube 2 has an axially extending inlet hole 201 at its center. The tube wall of the cleaning tube 2 is provided with multiple outlet holes 202 penetrating it. The outlet holes 202 communicate with the inlet hole 201. The outlet of the outlet hole 202 faces the glass body 1. A certain pressure of cleaning fluid is introduced into the cleaning tube 2. The cleaning fluid is sprayed from the outlet holes 202 onto the lower side of the glass body 1, thereby cleaning the residual fluid on the lower side of the glass body 1. The cleaning tube 2 is detachably connected to the glass body 1, eliminating the need to install a separate cleaning tube 2 through an opening in the housing. After cleaning, a certain pressure of gas is introduced into the cleaning tube 2 to dry the lower side of the glass body 1. The structure is simple and compact, easy to install and disassemble, and has good applicability.
[0023] like Figure 1 As shown, a support boss 203 is provided on the outer periphery of the cleaning pipe 2. The support boss 203 abuts against the lower side of the glass body 1 and supports the glass body 1.
[0024] like Figure 1 As shown, the cleaning tube 2 is provided with a threaded part 204, and a fastening nut 3 is fitted on the threaded part 204. The fastening nut 3 abuts against the upper side of the glass body 1. The fastening nut 3 and the threaded part 204 cooperate to achieve a good fastening effect, making installation and disassembly more convenient. The support boss 203 and the fastening nut 3 cooperate to better fix the glass body 1.
[0025] like Figure 1As shown, an annular sealing groove is provided on the upper side of the support boss 203, and a sealing element 4 is embedded in the sealing groove. Specifically, the sealing element 4 is an O-ring. The O-ring embedded in the sealing groove can improve the sealing performance, so that fine particles and liquids are not easy to enter the mounting hole, and fine particles and liquids are not easy to leak out from the mounting hole. At the same time, since the O-ring is soft and elastic, it plays a buffering role, and the support boss 203 is not easy to damage the surface of the glass body 1.
[0026] like Figure 1 As shown, the angle between the central axis of the outlet 202 and the glass body 1 is 14°-35°. According to the size of the glass body 1, the effective cleaning range of the glass body 1 is larger and the cleaning effect is better when the angle between the outlet 202 and the glass body 1 is within 14°-35°.
[0027] like Figure 1 As shown, the outer periphery of the cleaning pipe 2 has a stepped structure, that is, the upper outer periphery of the cleaning pipe 2 is provided with an avoidance area 205 to facilitate the installation of the connector.
[0028] like Figure 1 As shown, the lower side of the support boss 203 is provided with an inclined surface, which can play a reinforcing role, making the support boss 203 less prone to deformation, and the droplets slide off the inclined surface, making it less likely to stick to the wall.
[0029] The above embodiments are merely descriptions for clearly illustrating the present utility model, and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all implementations here, and the obvious variations or modifications derived therefrom are still within the protection scope of the present utility model.
Claims
1. A sight glass with a cleaning function, characterized in that, The device includes a glass body and a cleaning tube. The glass body has an axially extending mounting hole. The cleaning tube is detachably inserted into the mounting hole. The cleaning tube has an axially extending inlet hole at its center. The cleaning tube wall is provided with multiple outlet holes that penetrate it at an angle. The outlet holes communicate with the inlet holes, and the outlet holes face the glass body.
2. The sight glass with cleaning function according to claim 1, characterized in that, A support boss is provided on the outer periphery of the cleaning tube, and the support boss abuts against the lower side of the glass body.
3. A sight glass with a cleaning function according to claim 1, characterized in that, The cleaning tube is provided with a threaded part, and a fastening nut is fitted on the threaded part, which abuts against the upper side of the glass body.
4. A sight glass with a cleaning function according to claim 2, characterized in that, An annular sealing groove is provided on the upper side of the support boss, and a sealing element is embedded in the sealing groove.
5. A sight glass with a cleaning function according to claim 1, characterized in that, The angle between the central axis of the outlet and the glass body is 14°-35°.
6. A sight glass with a cleaning function according to claim 4, characterized in that, The sealing element is an O-ring.
7. A sight glass with a cleaning function according to claim 1, characterized in that, The outer periphery of the cleaning tube has a stepped structure.
8. A sight glass with a cleaning function according to claim 2, characterized in that, The support boss has a sloping surface on its lower side.