A liquid level display device for a temperature control apparatus

Abstract

The application relates to the technical field of temperature control equipment, and relates to a liquid level display device of a temperature control equipment, which comprises a liquid level display mechanism, the liquid level display mechanism comprises a glass tube and sealing tube joints at two ends of the glass tube, a plastic ball is arranged in the glass tube, the sealing tube joints at the two ends are communicated with the temperature control equipment through hoses respectively, a fixed support is used for mounting the liquid level display mechanism, the fixed support adopts an L-shaped structure, a threaded tube joint matched with the sealing tube joints is welded below the fixed support, and a mounting groove matched with the connecting tube joint is arranged at the top of the fixed support. The application solves the problems of inconsistent shapes and lengths caused by the differences between the bending pipe machining and the joint screwing operation of the traditional device, and greatly improves the consistency of the machine assembly.

Description

Technical Field

[0001] This application relates to the field of temperature control equipment technology, and in particular to a liquid level display device for temperature control equipment. Background Technology

[0002] Figure 3 For liquid level display devices used in conventional semiconductor industry temperature control equipment, they are typically manufactured from ferrule fittings and transparent Teflon tubing. Specifically, the housing has two welded joints; the ferrule fittings are screwed onto the welded joints, and the Teflon tubing is machined to specified dimensions. Figure 3 The liquid level display device is labeled with red, green, and yellow tags. When liquid enters the tank, the display device will show the liquid level in real time, reminding the user whether to add liquid to the tank or check for other abnormalities.

[0003] In actual production and assembly, due to operator error and pipe bending, the device may experience issues such as inconsistent pipe bending shapes, inconsistent joint screwing lengths, and difficulty in securing Teflon tubing after installation. These issues can negatively impact the consistency and aesthetics of the machine. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, this application provides a liquid level display device for temperature control equipment.

[0005] The liquid level display device for a temperature control equipment provided in this application adopts the following technical solution: A liquid level display device for a temperature control equipment includes a liquid level display mechanism, which includes a glass tube and sealing pipe joints at both ends of the glass tube. A plastic ball is placed inside the glass tube, and the sealing pipe joints at both ends are connected to the temperature control equipment through flexible hoses. A fixed bracket is used to install the liquid level display mechanism. The fixed bracket adopts an L-shaped structure, wherein a threaded pipe joint adapted to the sealing pipe joint is welded to the bottom of the fixed bracket, and an installation groove for fitting the connecting pipe joint is opened on the top of the fixed bracket.

[0006] Furthermore, the fixing bracket includes a base plate and a vertical plate. The base plate has several mounting holes, and the threaded pipe fitting welded to the lower part of the vertical plate has an L-shaped structure. The top of the threaded pipe fitting is connected to a sealing pipe fitting, and a flexible hose is connected to the outside of the threaded pipe fitting. A reinforcing plate is also installed at the connection between the base plate and the vertical plate, extending from the connection to the free ends of the base plate and the vertical plate, with the bottom of the vertical plate located at the center of the base plate.

[0007] Furthermore, the sealing connector at the top of the glass tube is connected to the hose via a connecting connector. The connecting connector has an L-shaped structure, and its horizontal outer ring has a positioning groove that fits into the mounting groove. The sealing connector at the bottom of the level display mechanism is connected to the hose via a threaded connector, and the connection between the hose and the threaded connector is also via a sealing connector on the hose. The sealing connector includes a sleeve fitted onto the free end of the glass tube or hose. An annular retaining ring is integrally formed on the inner wall of one end of the sleeve, located inside the annular limiting ring at the free end of the glass tube or hose. The side of the sleeve away from the annular retaining ring has an internal thread, which mates with the external threads at the bottom of the connecting connector and both ends of the threaded connector. Rubber sealing gaskets are provided between both ends of the glass tube and the connecting connector and the threaded connector, and between the hose and the threaded connector. The inner diameter of the annular retaining ring matches the outer diameter of the glass tube, and the outer surface of the sleeve has a regular polygonal structure.

[0008] In summary, this application includes at least one of the following beneficial technical effects: 1. This application replaces the Teflon tubes that require bending with standardized glass tubes, and uses uniformly structured sealing pipe joints, connecting pipe joints and threaded pipe joints to fundamentally solve the problems of inconsistent shapes and lengths caused by differences in bending and joint screwing operations in traditional devices, thus greatly improving the consistency of machine assembly. 2. This application utilizes the precise design of the L-shaped fixed bracket, through the matching connection of the bottom threaded pipe joint and the sealing pipe joint, and the fitting and fixing of the top mounting groove and the positioning groove of the connecting pipe joint, effectively solving the problem of Teflon tubes being difficult to fix. At the same time, the mounting holes on the bracket base plate facilitate stable assembly, while the reinforcing plate improves the overall structural strength of the bracket, ensuring the stable installation of the liquid level display mechanism and further optimizing the aesthetics of the machine. 3. In this application, the sealing pipe joint uses an annular retaining ring to limit the glass tube or hose, and the internal thread connects with the external thread of the corresponding joint. In addition, the setting of the rubber sealing gasket significantly improves the sealing performance of the device and avoids the risk of liquid leakage. 4. The regular polygonal structure of the sleeve in this application facilitates the disassembly and assembly of the sealed pipe joint. The design of the plastic ball inside the glass tube can more clearly indicate the liquid level. The overall device, while ensuring real-time accurate display of liquid level, reminder of liquid replenishment and abnormal inspection functions, also takes into account ease of assembly, structural stability and reliability of use. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of a liquid level display device for a temperature control equipment. Figure 2 An exploded view of a liquid level display device in a temperature control system; Figure 3 This is a schematic diagram of the liquid level display device in the prior art of temperature control equipment.

[0010] Explanation of reference numerals in the attached drawings: 1. Liquid level display mechanism; 11. Glass tube; 111. Annular limiting ring; 112. Rubber sealing gasket; 12. Sealing pipe joint; 121. Sleeve; 122. Annular retaining ring; 123. Internal thread; 13. Plastic ball; 14. Connecting pipe joint; 141. Positioning groove; 2. Fixed bracket; 21. Threaded pipe joint; 211. External thread; 22. Mounting groove; 23. Base plate; 231. Mounting hole; 24. Vertical plate; 25. Reinforcing plate; 3. Hoses; 4. Compression fitting; 5. Transparent Teflon tube; 6. Welded joint; 7. Temperature control equipment housing. Detailed Implementation

[0011] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0012] This application discloses a liquid level display device for a temperature control equipment.

[0013] Reference Figure 1 and Figure 2A liquid level display device for a temperature control equipment includes a liquid level display mechanism 1, which includes a glass tube 11 and sealing pipe joints 12 at both ends of the glass tube 11. A plastic ball 13 is provided inside the glass tube 11, and the sealing pipe joints 12 at both ends are respectively connected to the temperature control equipment through flexible hoses 3. A fixed bracket 2 is used to install the liquid level display mechanism 1. The fixed bracket 2 adopts an L-shaped structure, wherein a threaded pipe joint 21 adapted to the sealing pipe joint 12 is welded at the bottom of the fixed bracket 2, and an installation groove 22 for fitting into the connecting pipe joint 14 is opened at the top of the fixed bracket 2. Specifically, during the assembly stage, the fixed bracket 2 is first installed on the machine base of the temperature control equipment. The threaded pipe joint 21 pre-welded below the fixed bracket 2 is adapted and connected to the sealing pipe joint 12 at the bottom of the liquid level display mechanism 1. At the same time, the sealing pipe joint 12 at the top of the liquid level display mechanism 1 is connected to the connecting pipe joint 14, and the connecting pipe joint 14 is embedded into the mounting groove 22 opened at the top of the fixed bracket 2 to complete the stable installation of the liquid level display mechanism 1 on the fixed bracket 2. Then, the hose 3 is connected through the sealing pipe joints 12 at both ends, so that the other end of the hose 3 is connected to the corresponding interface of the temperature control equipment. During operation, when liquid is introduced into the temperature control equipment box 7, the liquid flows through the hose 3 and the sealed pipe joints 12 at both ends into the glass tube 11. As the liquid level in the temperature control equipment box 7 changes, the plastic ball 13 in the glass tube 11 will rise and fall synchronously with the liquid level. The staff can observe the position of the plastic ball 13 through the transparent glass tube 11 and, in conjunction with the red, green and yellow labels on the temperature control equipment box 7, judge in real time whether the liquid level in the temperature control equipment box 7 is normal, and then determine whether liquid needs to be added or whether the equipment is abnormal.

[0014] Reference Figure 1 and Figure 2The fixed bracket 2 includes a base plate 23 and a vertical plate 24. The base plate 23 has several mounting holes 231. A threaded pipe joint 21 welded to the lower part of the vertical plate 24 has an L-shaped structure. The top of the threaded pipe joint 21 connects to a sealing pipe joint 12, and a flexible hose 3 is connected to the outside of the threaded pipe joint 21. A reinforcing plate 25 is also installed at the connection between the base plate 23 and the vertical plate 24. The reinforcing plate 25 extends from the connection to the free ends of the base plate 23 and the vertical plate 24, with the bottom of the vertical plate 24 located at the center of the base plate 23. During the assembly of the liquid level display device, the fixed bracket 2 is installed and fixed first. Specifically, the operator uses the mounting holes 231 on the base plate 23 to securely install the entire fixed bracket 2 at the designated position on the temperature control equipment using bolts and other fasteners. Because the bottom of the vertical plate 24 is located at the center of the base plate 23, the overall force on the bracket is balanced. Meanwhile, the reinforcing plate 25 installed at the connection between the base plate 23 and the vertical plate 24 extends from the connection to the free ends of the base plate 23 and the vertical plate 24, further enhancing the stability of the support structure and preventing deformation due to stress during subsequent use. Then, the pipeline connection is performed. Specifically, the top of the L-shaped threaded pipe joint 21 pre-welded to the lower part of the vertical plate 24 is threadedly screwed into the sealing pipe joint 12 of the liquid level display mechanism 1, achieving docking between the fixed support 2 and the liquid level display mechanism 1. Then, one end of the hose 3 is connected and fixed to the outer interface of the threaded pipe joint 21, forming a passage between the hose 3 and the threaded pipe joint 21. This lays the foundation for the subsequent entry of liquid from the temperature control equipment into the glass tube 11 through the hose 3, threaded pipe joint 21, and sealing pipe joint 12, ensuring the normal operation of the liquid level display function.

[0015] Reference Figure 1 and Figure 2The sealing pipe joint 12 at the top of the glass tube 11 is connected to the hose 3 via a connecting pipe joint 14. The connecting pipe joint 14 has an L-shaped structure, and a positioning groove 141 is formed on the outer ring of the horizontal part of the connecting pipe joint 14. The positioning groove 141 fits into the mounting groove 22. The sealing pipe joint 12 at the bottom of the liquid level display mechanism 1 is connected to the hose 3 via a threaded pipe joint 21, and the connection between the hose 3 and the threaded pipe joint 21 is connected via the sealing pipe joint 12 on the hose 3. The sealing pipe joint 12 includes a sleeve 121 fitted onto the free end of the glass tube 11 or the hose 3. An annular retaining ring 122 is integrally formed on the inner wall of one end of the sleeve 121, and the annular retaining ring 122 is located inside the annular limiting ring 111 at the free end of the glass tube 11 or the hose 3. The sleeve 121 has an internal thread 123 on the side away from the annular retaining ring 122, and the internal thread 123 mates with the external threads 211 at the bottom of the connecting pipe joint 14 and both ends of the threaded pipe joint 21. Rubber sealing gaskets 112 are provided between both ends of the glass tube 11 and the connecting pipe joint 14 and the threaded pipe joint 21, respectively, and between the hose 3 and the threaded pipe joint 21. The inner diameter of the annular retaining ring 122 is adapted to the outer diameter of the glass tube 11, and the outer surface of the sleeve 121 adopts a regular polygonal structure. When assembling the liquid level display device, the top of the glass tube 11 is connected and assembled first. Specifically, the sleeve 121 of the sealing pipe joint 12 is fitted onto the free end of the top of the glass tube 11. Because the inner diameter of the annular retaining ring 122, which is integrally formed on the inner wall of the sleeve 121, is adapted to the outer diameter of the glass tube 11, and the annular retaining ring 122 is located inside the annular limiting ring 111 at the free end of the glass tube 11, the glass tube 11 and the sealing pipe joint 12 can be precisely limited. The annular retaining ring 122 on the inner wall of the sleeve 121 can be installed by first fitting the sleeve 121 onto the glass tube 11, and then fixing the annular retaining ring 122 on the sleeve 121. Then, the positioning groove 141 on the outer ring of the horizontal part of the connecting pipe joint 14 is fitted into the mounting groove 22 on the top of the fixed bracket 2 to complete the positioning installation of the top of the glass tube 11. Then, one end of the hose 3 is connected to the end of the connecting pipe joint 14 away from the glass tube 11. Next, the internal thread 123 on the side of the sleeve 121 of the sealing pipe joint 12 away from the annular retaining ring 122 is screwed into the external thread 211 at the bottom of the L-shaped structure connecting pipe joint 14. At the same time, a rubber sealing gasket 112 is set between the glass tube 11 and the connecting pipe joint 14 to ensure a seal.Finally, the bottom of the glass tube 11 is connected and assembled. Specifically, the sleeve 121 of the sealing pipe connector 12 is fitted onto the free end of the bottom of the glass tube 11. Similarly, the annular retaining ring 122 is used to limit the connection with the annular limiting ring 111 of the glass tube 11. The internal thread 123 of the sleeve 121 is screwed into the external thread 211 of one end of the threaded pipe connector 21, and a rubber sealing gasket 112 is placed between the glass tube 11 and the threaded pipe connector 21. Then, one end of the other flexible tube 3 is fitted onto the sealing pipe connector 12, so that the annular retaining ring 122 of the sleeve 121 of the sealing pipe connector 12 is positioned... Inside the annular limiting ring 111 at the free end of the hose 3, the internal thread 123 of the sleeve 121 is screwed into the external thread 211 at the other end of the threaded pipe fitting 21, and a rubber sealing gasket 112 is placed between the hose 3 and the threaded pipe fitting 21. During the assembly process, the regular polygonal structure of the sleeve 121 of the sealing pipe fitting 12 makes it easy for workers to tighten it with tools, ensuring that each connection part is stable. Finally, the liquid in the temperature control equipment can flow smoothly into the glass tube 11 through the hose 3, the connecting pipe fitting 14, the threaded pipe fitting 21 and the sealing pipe fitting 12 to realize the liquid level display function.

[0016] Working principle: First, the assembly is carried out. The fixed bracket 2 is fixed to the machine platform through the mounting hole 231 on the base plate 23. The L-shaped threaded pipe joint 21 welded to the bottom of its vertical plate 24 is connected to the sealing pipe joint 12 at the bottom of the liquid level display mechanism 1. At the same time, the sealing pipe joint 12 at the top of the glass tube 11 is mated with the L-shaped connecting pipe joint 14, and the positioning groove 141 of the horizontal part of the connecting pipe joint 14 is fitted with the mounting groove 22 at the top of the fixed bracket 2, so as to realize the stable installation of the liquid level display mechanism 1. During assembly, the sleeve 121 of the sealing pipe fitting 12 is fitted onto the free ends of the glass tube 11 and the hose 3, respectively. The annular retaining ring 122 on the inner wall of the sleeve 121 engages with the annular limiting ring 111 of the glass tube 11 or the hose 3 for positioning. The sleeve 121 is then tightened with the internal thread 123 of the sleeve, which in turn engages with the external threads 211 at the bottom of the connecting pipe fitting 14 and at both ends of the threaded pipe fitting 21. Rubber sealing gaskets 112 are placed between the glass tube 11 and the connecting pipe fitting 14, between the threaded pipe fitting 21 and the hose 3 and the threaded pipe fitting 21 to ensure a seal. The hoses 3 connected to the upper and lower ends of the glass tube 11 are screwed onto the welding joints 6 on the temperature control equipment housing 7 via compression fittings 4. When the device is working, the liquid in the temperature control equipment box 7 flows through the hose 3 through the threaded pipe joint 21 and the sealed pipe joint 12 into the glass tube 11. The plastic ball 13 in the glass tube 11 floats with the liquid level. The staff can observe the position of the plastic ball 13 through the glass tube 11 to judge the liquid level. Combined with the red, green and yellow labels next to it, they can know in time whether the temperature control equipment box 7 needs to be replenished or an abnormality needs to be checked. When the liquid level changes, the liquid in the glass tube 11 is reflected in real time to ensure the accuracy and timeliness of the liquid level display.

[0017] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A liquid level display device for a temperature control equipment, characterized in that: include The liquid level display mechanism (1) includes a glass tube (11) and sealing pipe joints (12) at both ends of the glass tube (11). A plastic ball (13) is provided inside the glass tube (11), and the sealing pipe joints (12) at both ends are connected to the temperature control device through hoses (3). Fixed bracket (2), the fixed bracket (2) is used to install liquid level display mechanism (1), the fixed bracket (2) adopts L-shaped structure, wherein a threaded pipe joint (21) adapted to the sealing pipe joint (12) is welded below the fixed bracket (2), and an installation groove (22) that fits into the connecting pipe joint (14) is opened on the top of the fixed bracket (2).

2. The liquid level display device for a temperature control equipment according to claim 1, characterized in that: The fixed bracket (2) includes a base plate (23) and a vertical plate (24). The base plate (23) has several mounting holes (231). The threaded pipe joint (21) welded to the lower part of the vertical plate (24) adopts an L-shaped structure. The top of the threaded pipe joint (21) is connected to the sealing pipe joint (12), and a flexible hose (3) is connected to the outside of the threaded pipe joint (21).

3. The liquid level display device for a temperature control equipment according to claim 2, characterized in that: A reinforcing plate (25) is also installed at the connection between the base plate (23) and the vertical plate (24), wherein the reinforcing plate (25) extends from the connection between the two to the free ends of the base plate (23) and the vertical plate (24), and the bottom of the vertical plate (24) is located at the center of the base plate (23).

4. The liquid level display device for a temperature control equipment according to claim 1, characterized in that: The sealing pipe joint (12) at the top of the glass tube (11) is connected to the hose (3) through the connecting pipe joint (14). The connecting pipe joint (14) adopts an L-shaped structure, and the horizontal part of the connecting pipe joint (14) has a positioning groove (141) on the outer ring. The positioning groove (141) fits into the mounting groove (22).

5. The liquid level display device for a temperature control equipment according to claim 4, characterized in that: The sealing pipe joint (12) at the bottom of the liquid level display mechanism (1) is connected to the hose (3) through the threaded pipe joint (21), and the connection between the hose (3) and the threaded pipe joint (21) is connected through the sealing pipe joint (12) on the hose (3).

6. The liquid level display device for a temperature control equipment according to claim 5, characterized in that: The sealing pipe joint (12) includes a sleeve (121) fitted onto the free end of the glass tube (11) or the hose (3), wherein an annular retaining ring (122) is integrally formed on the inner wall of one end of the sleeve (121), and the annular retaining ring (122) is located inside the annular limiting ring (111) at the free end of the glass tube (11) or the hose (3). The sleeve (121) is provided with an internal thread (123) on the side away from the annular retaining ring (122), and the internal thread (123) is engaged with the external threads (211) at the bottom of the connecting pipe joint (14) and at both ends of the threaded pipe joint (21).

7. The liquid level display device for a temperature control equipment according to claim 6, characterized in that: Rubber sealing gaskets (112) are provided between the two ends of the glass tube (11) and the connecting pipe joint (14) and the threaded pipe joint (21), respectively, and between the hose (3) and the threaded pipe joint (21).

8. The liquid level display device for a temperature control equipment according to claim 7, characterized in that: The inner diameter of the annular retaining ring (122) is adapted to the outer diameter of the glass tube (11), and the outer surface of the sleeve (121) adopts a regular polygonal structure.

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