Waterproof treatment device for gear-free waterproof accelerator knob
By incorporating a humidity sensor, a moisture pump, and a heating wire into the throttle knob, the problem of reduced sealing performance caused by aging of the sealing ring is solved, enabling automatic dehumidification and extending the service life of the throttle knob.
Patent Information
- Application Number
- CN202520318419.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The existing throttle knob's sealing ring is prone to aging under changes in ambient temperature and humidity, resulting in reduced sealing performance, moisture seepage that cannot escape, corrosion of electronic components, and shortened service life.
A waterproof throttle knob without gears was designed. A humidity sensor monitors the humidity of the chamber, and a moisture pump and electric actuator control the dehumidification channel. Combined with an electric heating wire to heat and evaporate the condensate, automatic dehumidification is achieved, protecting the internal electronic components.
It effectively prevents moisture from seeping in, extends the service life of the throttle knob, improves sealing performance and dehumidification effect, and protects internal electronic components.
Smart Images

Figure CN223923147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterproofing technology for mechanical devices, specifically a waterproofing device for a gearless waterproof throttle knob. Background Technology
[0002] In numerous mechanical equipment, transportation vehicles, and industrial control fields, the throttle knob plays a crucial role. As a control element, it is used to adjust the power output of equipment and is widely used in power equipment in automobiles, motorcycles, ships, construction machinery, and various industrial automated production lines.
[0003] In the prior art, such as in publication number CN215067928U, a throttle knob mounting structure is disclosed. It includes a knob cover, a knob body, a bracket, and a plate. The knob body is assembled on the bracket, and the bracket is fixed to the plate. The throttle knob is installed to the bracket to prevent the built-in nut from falling off. Then, the bracket is installed to the plate, and the entire assembly is fixed in place. The installation operation is simple, it prevents the built-in nut of the throttle knob from falling off, and it is stable and highly reliable.
[0004] Based on the above-mentioned existing technology, the existing throttle knob still has the following problems: under long-term use and complex environmental conditions, the sealing ring of traditional waterproofing measures is often inevitably affected by changes in ambient temperature and humidity, which can easily lead to aging and reduced sealing performance. This causes moisture to seep into the inside of the throttle knob and cannot be discharged, gradually corroding electronic components and reducing the service life of the throttle knob. Therefore, this utility model provides a waterproofing treatment device for a gearless waterproof throttle knob. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a waterproof treatment device for a gearless waterproof throttle knob, which solves the problem that the sealing ring is often inevitably affected by changes in ambient temperature and humidity, and is prone to aging and reduced sealing performance. This causes moisture to seep into the throttle knob and cannot be discharged, gradually corroding electronic components and reducing the service life of the throttle knob.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof treatment device for a gearless waterproof throttle knob, comprising a flat plate, a first annular groove on the top surface of the flat plate, a dehumidification channel communicating with the outside on the bottom surface of the first annular groove, a moisture-absorbing pump communicating with the dehumidification channel installed on the flat plate, a throttle knob body penetrating near the center of the flat plate, a sealing assembly on the throttle knob body, the sealing assembly comprising: a sealing plate fixedly sleeved on the outer wall of the throttle knob body, the sealing plate being bolted to the top surface of the flat plate, a second annular groove on the bottom surface of the sealing plate, the second annular groove and the first annular groove forming an annular sealed chamber.
[0007] Preferably, the bottom surface of the sealing plate is provided with two first sealing gaskets, one of which surrounds the inner circumference of the second annular groove and the other surrounds the outer circumference of the second annular groove, and both first sealing gaskets are in close contact with the top surface of the plate.
[0008] Preferably, an installation sleeve is fixedly connected to the sealing plate, and a second sealing gasket is embedded at the end of the installation sleeve.
[0009] Preferably, a humidity sensor is bolted to the end of the mounting sleeve, and the input end of the humidity sensor is inserted into the second annular groove through the inner cavity of the mounting sleeve.
[0010] Preferably, the first annular groove is provided with a heating wire, which can heat the air inside the first annular groove and the second annular groove.
[0011] Preferably, an installation plate is installed between the inner walls of the first annular groove, an electric push rod is installed on the bottom surface of the installation plate, a circular blocking plate capable of being raised and lowered is installed on the telescopic end of the electric push rod, and the circular blocking plate is located above the dehumidification channel port. A third sealing gasket is embedded on the bottom surface of the circular blocking plate, and the third sealing gasket can be made to come into close contact with the bottom surface of the first annular groove by the downward movement of the circular blocking plate.
[0012] Beneficial effects
[0013] This utility model provides a waterproof treatment device for a gearless waterproof throttle knob. Compared with the prior art, it has the following advantages:
[0014] (1) The non-gear waterproof throttle knob waterproof treatment device monitors the humidity in the sealed chamber formed by the second annular groove and the first annular groove in real time through a humidity sensor. If the humidity sensor detects that the humidity exceeds the standard, it indicates that moisture has seeped into the chamber. At this time, the electric push rod retracts, driving the circular block plate to rise and opening the dehumidification channel. Then, the dehumidification pump starts and extracts the moisture in the chamber through the dehumidification channel, reducing the humidity and protecting the electronic components inside the throttle knob. This effectively solves the problems of reduced sealing performance and inability to expel moisture caused by the aging of the sealing ring in traditional waterproof measures, and extends the service life of the throttle knob.
[0015] (2) When there is condensation in the air inside the chambers of the first and second annular grooves, the heating wire will be activated to raise the air temperature inside the chamber. The hot air will cause the condensation to evaporate into water vapor, which will be easily extracted by the dehumidification pump, thus further improving the dehumidification effect. Attached Figure Description
[0016] Figure 1This is a three-dimensional appearance schematic diagram of the present utility model;
[0017] Figure 2 This is a partial cross-sectional view of the present invention;
[0018] Figure 3 This is a three-dimensional schematic diagram of the flat panel of this utility model;
[0019] Figure 4 This is a three-dimensional appearance schematic diagram of the sealing component of this utility model;
[0020] Figure 5 This is a three-dimensional schematic diagram of the circular blocking plate of this utility model.
[0021] In the diagram: 1. Flat plate; 11. First annular groove; 12. Dehumidification channel; 2. Throttle knob body; 3. Sealing assembly; 31. Sealing plate; 32. Second annular groove; 33. First sealing gasket; 34. Mounting sleeve; 35. Second sealing gasket; 4. Humidity sensor; 5. Heating wire; 6. Mounting plate; 61. Electric push rod; 62. Circular blocking plate; 63. Third sealing gasket; 7. Dehumidification pump. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides two technical solutions:
[0024] Figures 1-5 The first embodiment is shown: a waterproof treatment device for a gearless waterproof throttle knob, including a plate 1, a first annular groove 11 on the top surface of the plate 1, a dehumidification channel 12 communicating with the outside on the bottom surface of the first annular groove 11, a dehumidification pump 7 communicating with the dehumidification channel 12 installed on the plate 1, a throttle knob body 2 passing through the plate 1 near the middle, a sealing assembly 3 on the throttle knob body 2, the sealing assembly 3 including: a sealing plate 31 fixedly sleeved on the outer wall of the throttle knob body 2, and the sealing plate 31 is installed on the top surface of the plate 1 by bolts, a second annular groove 32 on the bottom surface of the sealing plate 31, and an annular sealed chamber formed between the second annular groove 32 and the first annular groove 11.
[0025] Specifically, the dehumidification channel 12 provides a path for the moisture in the sealed chamber formed by the second annular groove 32 and the first annular groove 11 to be discharged. The dehumidification pump 7, as a power source, can generate suction when needed to extract the moisture in the chamber through the dehumidification channel 12, thereby resisting the intrusion of external moisture and preventing moisture from accumulating in the chamber and damaging the throttle knob body 2 and its internal components. This lays the foundation for the waterproof and dehumidification function in terms of the overall structure.
[0026] In this embodiment, two first sealing gaskets 33 are embedded on the bottom surface of the sealing plate 31, one of the first sealing gaskets 33 surrounds the inner circumference of the second annular groove 32, and the other first sealing gasket 33 surrounds the outer circumference of the second annular groove 32, and both first sealing gaskets 33 are tightly attached to the top surface of the plate 1.
[0027] Specifically, the two first sealing gaskets 33 form multiple lines of defense, which greatly enhances the sealing performance of the entire sealing assembly 3, reduces the possibility of external moisture breaking through the defenses and entering the chamber, and thus better protects the internal space where the throttle knob body 2 is located.
[0028] In this embodiment, a mounting sleeve 34 is fixedly connected to the sealing plate 31. A second sealing gasket 35 is embedded at the end of the mounting sleeve 34. A humidity sensor 4 is mounted at the end of the mounting sleeve 34 by bolts. The input end of the humidity sensor 4 is inserted into the second annular groove 32 through the inner cavity of the mounting sleeve 34.
[0029] Specifically, the mounting sleeve 34 provides a structural foundation and stable positioning for the installation of the humidity sensor 4. The second sealing gasket 35 embedded at its end is mainly used to seal the gap when the mounting sleeve 34 is connected to the humidity sensor 4.
[0030] Figures 1-5 The second embodiment is shown. The main difference from the first embodiment is that the first annular groove 11 is provided with a heating wire 5, which can heat the air inside the first annular groove 11 and the second annular groove 32.
[0031] Specifically, when there is condensation in the air inside the chambers of the first annular groove 11 and the second annular groove 32, the heating wire 5 is activated. The heat generated by the heating wire raises the air temperature inside the chamber. The hot air can evaporate the condensation into water vapor, which is then easily extracted by the dehumidification pump 7, further improving the dehumidification effect.
[0032] In this embodiment, an installation plate 6 is installed between the inner walls of the first annular groove 11. An electric push rod 61 is installed on the bottom surface of the installation plate 6. A circular blocking plate 62 capable of being raised and lowered is installed on the telescopic end of the electric push rod 61. The circular blocking plate 62 is located above the port of the dehumidification channel 12. A third sealing gasket 63 is embedded on the bottom surface of the circular blocking plate 62. The third sealing gasket 63 can be made to come into close contact with the inner bottom surface of the first annular groove 11 by the downward movement of the circular blocking plate 62.
[0033] Specifically, the electric push rod 61 retracts, causing the circular blocking plate 62 to rise, which opens the dehumidification channel 12 to facilitate the discharge of moisture. Furthermore, the circular blocking plate 62 descends, causing the third sealing gasket 63 on its bottom surface to come into close contact with the bottom surface of the first annular groove 11, sealing the dehumidification channel 12 and preventing external impurities from entering the chamber through the dehumidification channel 12.
[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0035] In use, the power output of the device is adjusted by the knob on the throttle knob body 2. In order to prevent moisture from entering the area below the throttle knob body 2 and the plate 1, two first sealing gaskets 33 are used to seal the area, thereby isolating the airflow in both sides.
[0036] When the first sealing gasket 33 ages and its sealing performance decreases, the humidity sensor 4 monitors the humidity in the sealed chamber formed by the second annular groove 32 and the first annular groove 11 in real time. If the humidity sensor 4 detects that the humidity exceeds the standard, it indicates that moisture has seeped into the chamber. At this time, the electric push rod 61 retracts, causing the circular blocking plate 62 to rise and open the dehumidification channel 12. Then, the dehumidification pump 7 starts and extracts the moisture from the chamber through the dehumidification channel 12, reducing the humidity and protecting the internal electronic components of the throttle knob body 2. After the moisture is extracted, the electric push rod 61 pushes the circular blocking plate 62 down, so that the third sealing gasket 63 on its bottom surface makes tight contact with the inner bottom surface of the first annular groove 11, sealing the dehumidification channel 12 and preventing external impurities from entering the chamber through the dehumidification channel 12. This effectively solves the problems of reduced sealing performance and inability to expel moisture caused by the aging of the sealing ring in traditional waterproofing measures, and extends the service life of the throttle knob.
[0037] In special circumstances, such as when the ambient humidity is high and there may be condensation, the air in the sealed chamber is heated by the heating wire 5, which causes the moisture to evaporate and is then easily extracted by the dehumidification pump 7, further improving the dehumidification effect.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A waterproof treatment device for a gearless waterproof throttle knob, comprising a flat plate (1), characterized in that: The top surface of the plate (1) is provided with a first annular groove (11), and the bottom surface of the first annular groove (11) is provided with a dehumidification channel (12) communicating with the outside. A dehumidification pump (7) communicating with the dehumidification channel (12) is installed on the plate (1). A throttle knob body (2) is provided through the plate (1) near the middle. A sealing assembly (3) is provided on the throttle knob body (2). The sealing assembly (3) includes a sealing plate (31) fixedly sleeved on the outer wall of the throttle knob body (2). The sealing plate (31) is installed on the top surface of the plate (1) by bolts. A second annular groove (32) is provided on the bottom surface of the sealing plate (31). A ring-shaped sealed chamber is formed between the second annular groove (32) and the first annular groove (11).
2. The waterproof treatment device for a gearless waterproof throttle knob according to claim 1, characterized in that: The bottom surface of the sealing plate (31) is provided with two first sealing gaskets (33), one of which surrounds the inner circumference of the second annular groove (32), and the other first sealing gasket (33) surrounds the outer circumference of the second annular groove (32), and both first sealing gaskets (33) are in close contact with the top surface of the plate (1).
3. The waterproof treatment device for a gearless waterproof throttle knob according to claim 1, characterized in that: An installation sleeve (34) is fixedly connected to the sealing plate (31), and a second sealing gasket (35) is embedded at the end of the installation sleeve (34).
4. The waterproof treatment device for a gearless waterproof throttle knob according to claim 3, characterized in that: A humidity sensor (4) is bolted to the end of the mounting sleeve (34), and the input end of the humidity sensor (4) is inserted into the second annular groove (32) through the inner cavity of the mounting sleeve (34).
5. The waterproof treatment device for a gearless waterproof throttle knob according to claim 1, characterized in that: The first annular groove (11) is provided with a heating wire (5), which can heat the air inside the first annular groove (11) and the second annular groove (32).
6. The waterproof treatment device for a gearless waterproof throttle knob according to claim 1, characterized in that: An installation plate (6) is installed between the inner walls of the first annular groove (11). An electric push rod (61) is installed on the bottom surface of the installation plate (6). A circular blocking plate (62) capable of being raised and lowered is installed on the telescopic end of the electric push rod (61). The circular blocking plate (62) is located above the port of the dehumidification channel (12). A third sealing gasket (63) is embedded on the bottom surface of the circular blocking plate (62). The third sealing gasket (63) can be made to come into close contact with the bottom surface of the first annular groove (11) by the downward movement of the circular blocking plate (62).
Citation Information
Patent Citations
A throttle knob mounting structure
CN215067928U