Rotary locking mechanism for sewerage system of motor home

Abstract

The utility model relates to the technical field of sealing and locking devices of fluid conveying systems, and discloses a rotary locking mechanism of a sewerage system of a motor home. The rotary locking mechanism comprises a first annular plate, a first clamping assembly, a second annular plate, a second clamping assembly, a first sealing assembly and a second sealing assembly. Wherein the first annular plate is arranged at one end of the first blow-off pipe; the first clamping assembly is arranged between the first annular plate and one end of the first blow-off pipe and is used for clamping and matching the first blow-off pipe and the first annular plate; the second annular plate sleeves the outer side of the first annular plate; the second clamping assembly is arranged between the second annular plate and the second blow-off pipe and used for being matched with the second blow-off pipe and the second annular plate in a clamping mode; the first sealing assembly is arranged at the clamping part of the first annular plate and the first blow-off pipe; the second sealing assembly is arranged at the clamping position of the first annular plate and the second blow-off pipe. The rotary locking mechanism has the functions of being high in sealing performance, stable in connection and easy to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing and locking devices for fluid transport systems, and specifically to a rotary locking mechanism for a RV sewage system. Background Technology

[0002] Existing RV sewage systems generally suffer from poor sealing, insufficient connection stability, and cumbersome operation due to their snap-fit ​​structures. Traditional snap-fit ​​quick-connect couplings rely on the engagement of elastic claws and annular grooves, but lack an angle compensation mechanism, making the pipes prone to misalignment and resulting in high leakage rates. Furthermore, long-term vibration can cause plastic deformation of the claws. While threaded connections can achieve a seal, uneven bolt torque can easily lead to localized stress concentration, resulting in a high seal failure rate and making them unsuitable for extreme environments. Therefore, there is an urgent need for a snap-fit ​​structure that combines high sealing performance, resistance to vibration and misalignment, and quick assembly / disassembly capabilities to address the reliability bottleneck of RV sewage systems under complex operating conditions. Summary of the Invention

[0003] The purpose of this invention is to overcome the problems of poor sealing, insufficient connection stability and cumbersome operation in the existing technology, and to provide a rotary locking mechanism for a RV sewage system. This rotary locking mechanism has the functions of strong sealing, stable connection and simple operation.

[0004] To achieve the above objectives, this utility model provides a rotary locking mechanism for a RV sewage system, the rotary locking mechanism comprising:

[0005] The first ring plate is installed at one end of the first sewage pipe;

[0006] The first snap-fit ​​assembly is disposed between the first ring plate and one end of the first sewage pipe, and is used to snap-fit ​​the first sewage pipe and the first ring plate.

[0007] The second ring plate is sleeved on the outside of the first ring plate;

[0008] The second snap-fit ​​assembly is disposed between the second ring plate and the second drain pipe, and is used to snap-fit ​​the second drain pipe and the second ring plate.

[0009] The first sealing component is disposed at the engagement point between the first annular plate and the first drain pipe;

[0010] The second sealing component is located at the junction of the first ring plate and the second drain pipe.

[0011] Optionally, the first card-connecting component includes:

[0012] The first groove is provided on the upper surface of the first snap-fit ​​component;

[0013] Multiple slots are formed on the inner wall of the first ring plate at the end near the first drain pipe;

[0014] Multiple locking blocks are disposed on the side wall near the end of the first sewage pipe, and the locking blocks are used to engage with the corresponding locking slots.

[0015] Optionally, the card slot includes:

[0016] The limiting slide is set on the inner wall of the bottom end of the first ring plate, and its bottom is flush with the bottom of the first ring plate 1;

[0017] A limiting slider, the bottom end of which is connected to the upper end of the limiting slide, is used to cooperate with the limiting slide.

[0018] Optionally, the number of card slots and card blocks is four.

[0019] Optionally, the second snap-fit ​​component includes:

[0020] Multiple locking claws, which engage with the ends of the second ring plate to form locking grooves;

[0021] Multiple snap-fit ​​posts are disposed at one end of the second drain pipe for rotating and snap-fitting with the corresponding snap-fit ​​grooves.

[0022] Optionally, the number of the locking claws and the locking pins is four.

[0023] Optionally, the locking claw is L-shaped.

[0024] Optionally, the first sealing assembly includes a first sealing ring disposed in the inner wall of the first ring plate for sealing the first ring plate and the first drain pipe.

[0025] Optionally, the second sealing assembly includes a second sealing ring disposed in the first groove for sealing the first annular plate and the second drain pipe.

[0026] Optionally, the rotary locking mechanism further includes:

[0027] The second groove is formed on the outer wall of the first annular plate;

[0028] An annular block is formed on the inner wall of the second annular plate and engages with the second groove.

[0029] Multiple stops are set on the outer circumference of the second ring plate.

[0030] Through the above technical solution, the first ring plate and the first sewage pipe are connected by the first snap-fit ​​component, and the second ring plate and the second sewage pipe are connected by the second snap-fit ​​component, which allows for quick assembly and disassembly, ensuring a stable connection of the sewage pipes. At the same time, mechanical compensation can eliminate pipe misalignment. A first sealing component is provided between the first ring plate and the first sewage pipe, and a second sealing component is provided between the second ring plate and the second sewage pipe. The first and second sealing components can provide a sealing effect for the sewage system during sewage discharge, reducing the leakage rate. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a rotary locking mechanism for a RV sewage system, according to one embodiment of this utility model.

[0032] Figure 2 This is a schematic diagram of the second locking component in the rotary locking mechanism of a RV sewage system according to one embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the first snap-fit ​​component in the rotary locking mechanism of a RV sewage system according to one embodiment of this utility model;

[0034] Figure 4 This is a schematic diagram of the first snap-fit ​​component in the rotary locking mechanism of a RV sewage system according to one embodiment of this utility model;

[0035] Figure 5 This is a schematic diagram of the connection between the first ring plate and the second ring plate in a rotary locking mechanism of a RV sewage system according to one embodiment of this utility model;

[0036] Figure 6 This is a schematic diagram of the second ring plate in a rotary locking mechanism of a RV sewage system according to one embodiment of this utility model;

[0037] Figure 7 This is a schematic diagram of the first ring plate in the rotary locking mechanism of a RV sewage system according to one embodiment of this utility model.

[0038] Explanation of reference numerals in the attached figures

[0039] 1. First ring plate; 2. First snap-fit ​​assembly; 3. Second ring plate; 4. Second snap-fit ​​assembly; 5. First sealing assembly; 6. Second sealing assembly; 7. First drain pipe; 8. Second drain pipe; 21. Slot; 22. Block; 211. Limiting slide; 212. Limiting slider; 41. Snap-fit ​​claw; 42. Snap-fit ​​post; 9. Second groove; 10. Ring block; 11. Stop block; 23. First groove. Detailed Implementation

[0040] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0041] In this embodiment of the utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of the components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] like Figure 1 As shown, Figure 1 This is a schematic diagram of a rotary locking mechanism for a RV sewage system according to an embodiment of the present invention. Figure 1The rotary locking mechanism includes: a first ring plate 1, a second snap-fit ​​assembly 2, a second ring plate 3, a second snap-fit ​​assembly 4, a first sealing assembly 5, a second sealing assembly 6, a first drain pipe 7, and a second drain pipe 8. The first ring plate 1 is disposed at one end of the first drain pipe 7; the first snap-fit ​​assembly 2 is disposed between the first ring plate 1 and one end of the first drain pipe 7, for snap-fitting the first drain pipe 7 and the first ring plate 1; the second ring plate 3 is sleeved on the outside of the first ring plate 1; the second snap-fit ​​assembly 4 is disposed between the second ring plate 3 and the second drain pipe 8, for snap-fitting the second drain pipe 8 onto the second ring plate 3; the first sealing assembly 5 is disposed at the snap-fit ​​point between the first ring plate 1 and the first drain pipe 7; and the second sealing assembly 6 is disposed at the snap-fit ​​point between the second ring plate 3 and the second drain pipe 8. In existing technologies, the sealing mechanism of a motorhome's sewage system generally adopts a combination of snap-fit ​​quick-connect couplings and flange bolt connections. The snap-fit ​​quick-connect coupling method uses the engagement of elastic claws and annular grooves, but this method lacks an angle compensation mechanism. When the sewage pipe is misaligned, the sealing failure rate increases significantly, and long-term vibration can cause plastic deformation of the claws, resulting in a high leakage rate. The flange bolt connection method relies on the pre-tightening force of rubber gaskets for sealing, but uneven bolt torque leads to stress concentration and accelerates gasket deformation. All of these factors contribute to low sealing performance and unstable connections in the sewage system. To address the issues of low sealing performance and unstable connections in the sewage system, in one embodiment of this invention, the first ring plate 1 is snapped into one end of the first sewage pipe 7 via a first snap-fit ​​component 2, and the second ring plate 3 is fitted onto the outside of the first ring plate 1. The second ring plate 3 is snapped into the second sewage pipe 8 via a second snap-fit ​​component 4. During the snap-fit ​​process between the first ring plate 1 and the first sewage pipe 7, the second ring plate 3 can rotate freely, which, compared to the existing disassembly and assembly methods for sewage pipes, allows for quick disassembly and assembly of the sewage pipes and ensures a stable connection between them. A first sealing component 5 is provided between the first ring plate 1 and the first sewage pipe 7, and a second sealing component 6 is provided between the second ring plate 3 and the second sewage pipe 8. The first sealing component 5 and the second sealing component 6 can provide a sealing effect for the sewage system during sewage discharge, reducing the leakage rate.

[0044] In this embodiment, the structure of the first snap-fit ​​component 2 can be any of the various structures known to those skilled in the art. In one embodiment of this utility model, such as... Figure 3 and Figure 4As shown, the first snap-fit ​​assembly 2 includes multiple snap-fit ​​slots 21 and multiple snap-fit ​​blocks 22. The multiple snap-fit ​​slots 21 are formed on the inner wall of the first annular plate 1 near the end of the first drain pipe 7, and the multiple snap-fit ​​blocks 22 are disposed on the side wall near the end of the first drain pipe 7. The multiple snap-fit ​​blocks 22 are used to snap-fit ​​with the corresponding snap-fit ​​slots 21. The structure of the snap-fit ​​slots 21 can be various types known to those skilled in the art. In one embodiment of this utility model, the snap-fit ​​slot 21 includes a limiting slide 211 and a limiting slider 212. The limiting slide 211 is disposed on the inner wall at the bottom of the first annular plate 1, and the bottom end of the limiting slider 212 is connected to the upper end of the corresponding limiting slide 211. The snap-fit ​​blocks 22 are fixedly engaged by rotating to the limiting slide 211 via the limiting slider 212. The number of snap-fit ​​slots 21 and snap-fit ​​blocks 22 can be various types known to those skilled in the art. In a specific embodiment of this utility model, the number of snap-fit ​​slots 21 and snap-fit ​​blocks 22 is four.

[0045] In this embodiment, the structure of the second snap-fit ​​component 4 can be any of the various structures known to those skilled in the art. In one embodiment of this utility model, such as... Figure 2 As shown, the second snap-fit ​​assembly 4 includes multiple snap-fit ​​claws 41 and multiple snap-fit ​​posts 42. The snap-fit ​​claws 41 engage with the ends of the second annular plate 3 to form snap-fit ​​grooves, and the snap-fit ​​posts 42 are disposed at one end of the second drain pipe 8, engaging with their corresponding snap-fit ​​grooves in a rotatable snap-fit ​​manner. The number of snap-fit ​​claws 41 and snap-fit ​​posts 42 can be varied as known to those skilled in the art; in one embodiment of this invention, the number of snap-fit ​​claws 41 and snap-fit ​​posts 42 is four. The shape of the snap-fit ​​claws 41 can be varied as known to those skilled in the art; in one embodiment of this invention, the snap-fit ​​claws 41 are L-shaped.

[0046] In this embodiment, the first sealing component 5 includes a first sealing ring disposed in the inner wall of the first ring plate 1 for sealing the first ring plate 1 and the first drain pipe 7. The second sealing component 6 includes a second sealing ring disposed in the first groove of the first ring plate 1 for sealing the first ring plate 1 and the second drain pipe 8.

[0047] In this embodiment, such as Figures 5 to 7 As shown, the rotary locking mechanism also includes a second groove 9, an annular block 10, and multiple stops 11. The second groove 9 is formed on the outer wall of the first annular plate 1, the annular block 10 is formed on the inner wall of the second annular plate 3 and engages with the second groove 9, and the multiple stops 11 are arranged around the outer wall of the second annular plate 3. The first annular plate 1 is nested into the second annular plate 3. By rotating the multiple stops 11, the first engaging component 2 engages with the first drain pipe 7, and the second engaging component 4 engages with the second drain pipe 8, making the rotary locking mechanism easier to engage and disengage.

[0048] Through the above technical solution, the first ring plate 1 and the first sewage pipe 7 are connected by the first snap-fit ​​component 2, and the second ring plate 3 and the second sewage pipe 8 are connected by the second snap-fit ​​component 4, which allows for quick assembly and disassembly, ensuring a stable connection of the sewage pipes. At the same time, mechanical compensation can eliminate pipe misalignment. A first sealing component 5 is provided between the first ring plate 1 and the first sewage pipe 7, and a second sealing component 6 is provided between the second ring plate 3 and the second sewage pipe 8. The first sealing component 5 and the second sealing component 6 can seal the sewage system during sewage discharge, reducing the leakage rate.

[0049] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention. This includes combining various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A rotary locking mechanism for a RV sewage system, characterized in that, The rotary locking mechanism includes: The first ring plate is installed at one end of the first sewage pipe; The first snap-fit ​​assembly is disposed between the first ring plate and one end of the first sewage pipe, and is used to snap-fit ​​the first sewage pipe and the first ring plate. The second ring plate is sleeved on the outside of the first ring plate; The second snap-fit ​​assembly is disposed between the second ring plate and the second drain pipe, and is used to snap-fit ​​the second drain pipe and the second ring plate. The first sealing component is disposed at the engagement point between the first annular plate and the first drain pipe; The second sealing component is located at the junction of the first ring plate and the second drain pipe.

2. The rotary locking mechanism according to claim 1, characterized in that, The first card connector includes: The first groove is provided on the upper surface of the first snap-fit ​​component; Multiple slots are formed on the inner wall of the first ring plate at the end near the first drain pipe; Multiple locking blocks are disposed on the side wall near one end of the first sewage pipe, and the locking blocks are used to engage with the corresponding locking slots.

3. The rotary locking mechanism according to claim 2, characterized in that, The card slot includes: The limiting slide is set on the inner wall of the bottom end of the first ring plate, and its bottom is flush with the bottom of the first ring plate; A limiting slider, the bottom end of which is connected to the upper end of the limiting slide, is used to cooperate with the limiting slide.

4. The rotary locking mechanism according to claim 2, characterized in that, The number of card slots and card blocks is four.

5. The rotary locking mechanism according to claim 1, characterized in that, The second card-connecting component includes: Multiple locking claws, which engage with the ends of the second ring plate to form locking grooves; Multiple snap-fit ​​posts are disposed at one end of the second drain pipe for rotating and snap-fitting with the corresponding snap-fit ​​grooves.

6. The rotary locking mechanism according to claim 5, characterized in that, The number of the locking claws and locking pins is four.

7. The rotary locking mechanism according to claim 5, characterized in that, The locking claw is L-shaped.

8. The rotary locking mechanism according to claim 1, characterized in that, The first sealing assembly includes a first sealing ring disposed in the inner wall of the first ring plate for sealing the first ring plate and the first drain pipe.

9. The rotary locking mechanism according to claim 2, characterized in that, The second sealing assembly includes a second sealing ring disposed in the first groove for sealing the first annular plate and the second drain pipe.

10. The rotary locking mechanism according to claim 1, characterized in that, The rotary locking mechanism further includes: The second groove is formed on the outer wall of the first annular plate; An annular block is formed on the inner wall of the second annular plate and engages with the second groove. Multiple stops are set on the outer circumference of the second ring plate.

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