Vacuum toilet bowl sealing device

Abstract

The utility model discloses a vacuum excrement collecting device sealing technical field a vacuum excrement collecting device sealing device includes: valve seat and valve body, the both ends fixed connection of valve seat have first connecting flange, the first connecting flange is assembled with second connecting flange, the second connecting flange is assembled with blow-off pipe, be provided with sealing washer between first connecting flange and second connecting flange, the fixed ring is fixedly connected with second connecting flange inner wall, the sealing ring is provided with in blow-off pipe and fixed ring junction, the sealing ring is connected with fixed ring through dynamic compensation subassembly, the fixed ring fixed connection is in blow-off pipe outer wall. The utility model realizes this vacuum excrement collecting device sealing device at the junction use dynamic compensation sealing and skeleton anti -wear to carry out protection to sealing place, avoid the gap of sealing unit wear and tear after appearing influence sealing effect, also can improve the service life of sealing unit, improved the practicality and the sealing property of device.

Description

Technical Field

[0001] This utility model relates to the field of vacuum toilet sealing technology, and in particular to a vacuum toilet sealing device. Background Technology

[0002] Vacuum toilets are sanitary devices that utilize the principle of negative pressure (vacuum) to efficiently collect and treat waste. They are widely used in mobile transportation vehicles such as rail transit (high-speed rail, bullet trains, subways), airplanes, cruise ships, and long-distance buses, as well as fixed places with high requirements for hygiene and environmental protection, such as hospitals, hotels, and office buildings.

[0003] However, in existing vacuum toilets, the connection between the drain pipe and the drain valve is usually sealed directly using a sealing ring. However, the drain valve needs to be opened and closed frequently (high-frequency operation) with each flush. This causes relative friction and compression deformation between the sealing ring and the drain pipe and valve body. The sealing ring is prone to wear, permanent deformation due to compression, or fatigue fracture, which leads to an increase in the gap between the sealing surfaces and causes vacuum leakage. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a vacuum toilet sealing device.

[0005] The purpose of this utility model is achieved as follows: A vacuum toilet sealing device includes a valve seat and a valve body. A first connecting flange is fixedly connected to both ends of the valve seat. A second connecting flange is mounted on the first connecting flange. A drain pipe is mounted on the second connecting flange. A sealing ring is provided between the first connecting flange and the second connecting flange. A fixing ring is fixedly connected to the inner wall of the second connecting flange. A sealing ring is provided at the connection between the drain pipe and the fixing ring. The sealing ring is connected to the fixing ring through a dynamic compensation component. The fixing ring is fixedly connected to the outer wall of the drain pipe.

[0006] Preferably, the first connecting flange and the second connecting flange have mounting holes inside, and bolts are installed inside the mounting holes.

[0007] Preferably, a skeleton ring is fixedly connected to the outside of the sealing ring, and the skeleton ring has an installation hole inside.

[0008] Preferably, the dynamic compensation component includes a fixed column, which is fixedly connected to the outer wall of the fixed ring. An adjusting compensation column is slidably disposed inside the fixed column. A fixing rod is inserted inside the adjusting compensation column and is fixedly disposed inside the fixed column. A spring is wound around the surface of the fixing rod.

[0009] Preferably, one end of the spring is connected to the outer wall of the adjusting compensation column, and the other end of the spring is connected to the damper, which is installed inside the fixed column.

[0010] Preferably, a slider is fixedly connected to the side wall of the adjusting compensation column, and the slider is slidably disposed inside the slide groove, which is opened inside the fixed column.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model connects the drain pipe to the valve seat via a first connecting flange, a second connecting flange, a drain pipe, a sealing ring, a fixing ring, a dynamic compensation component, and a fixing ring. Multi-stage sealing is used at the connection point for protection. A sealing ring seals the first and second connecting flanges, and a sealing ring seals the drain pipe to the second connecting flange. The sealing ring is dynamically compensated by a dynamic compensation component, ensuring the sealing lip remains in close contact with the contact surface, compensating for wear, improving sealing performance, and extending the service life of the sealing ring. This vacuum toilet sealing device utilizes multi-stage sealing to achieve protection, improving the sealing performance at the toilet pipe connection, preventing wear of the sealing unit from reducing sealing performance, and enhancing the practicality and sealing effect of the device.

[0013] 2. This utility model utilizes a combination of a fixed column, an adjusting compensation column, a fixed rod, a spring, a damper, a slider, and a sliding groove. The connection between the sewage pipe and the second connecting flange is dynamically compensated using a dynamic compensation assembly. When the sealing ring wears and gaps appear at the seal, the spring can push the adjusting compensation column to move, causing it to compress the sealing ring. This ensures the sealing ring remains in close contact with the seal, preventing gaps and improving the sealing effect. This vacuum toilet sealing device uses dynamic compensation sealing and a wear-resistant skeleton to protect the seal at the connection point, preventing gaps from appearing after the sealing unit wears down and affecting the sealing effect. It also extends the service life of the sealing unit, improving the practicality and sealing performance of the device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a frontal three-dimensional schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a frontal three-dimensional exploded view of the overall structure of this utility model.

[0017] Figure 3This is a frontal perspective three-dimensional schematic diagram of the overall structure of the automatic compensation component of this utility model.

[0018] Figure 4 This is a frontal perspective three-dimensional schematic diagram of the fixed column, adjusting compensation column, fixed rod, spring and damper of this utility model.

[0019] In the diagram: 111, valve seat; 112, valve body; 211, first connecting flange; 212, second connecting flange; 213, drain pipe; 214, sealing ring; 215, fixing ring; 216, sealing ring; 217, dynamic compensation component; 218, fixing ring; 219, mounting hole; 220, skeleton ring; 221, fixing column; 222, adjusting compensation column; 223, fixing rod; 224, spring; 225, damper; 226, slider; 227, slide groove. Detailed Implementation

[0020] 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.

[0021] like Figure 1-4 The present invention provides one embodiment as shown:

[0022] A vacuum toilet sealing device, wherein the valve seat 111 and valve body 112 used in this application are products that can be directly purchased on the market, and their principles and connection methods are existing technologies well known to those skilled in the art.

[0023] Includes: valve seat 111 and valve body 112. The valve seat 111 is fixedly connected to both ends with a first connecting flange 211. A second connecting flange 212 is mounted on the first connecting flange 211. A drain pipe 213 is mounted on the second connecting flange 212. A sealing ring 214 is provided between the first connecting flange 211 and the second connecting flange 212. A fixing ring 215 is fixedly connected to the inner wall of the second connecting flange 212. A sealing ring 216 is provided at the connection between the drain pipe 213 and the fixing ring 215. The sealing ring 216 is connected to the fixing ring 218 through a dynamic compensation component 217. The fixing ring 218 is fixedly connected to the outer wall of the drain pipe 213.

[0024] When using this vacuum toilet sealing device, the drain pipe 213 is connected to the valve seat 111 through the first connecting flange 211 and the second connecting flange 212. Multi-stage sealing is used to protect the connection. The first connecting flange 211 and the second connecting flange 212 are sealed with a sealing ring 214, and the drain pipe 213 and the second connecting flange 212 are sealed with a sealing ring 216. The sealing ring 216 can be dynamically compensated by a dynamic compensation component 217, so that the sealing lip is always in close contact with the contact surface, compensating for wear, improving the sealing effect and the service life of the sealing ring 216.

[0025] The first connecting flange 211 and the second connecting flange 212 have mounting holes 219 inside, and bolts are installed inside the mounting holes 219.

[0026] The first connecting flange 211 and the second connecting flange 212 are assembled through mounting holes 219 and bolts, which is simple to operate and provides a tight connection.

[0027] The sealing ring 214 is externally fixedly connected to a skeleton ring 220, and the skeleton ring 220 has an installation hole 219 inside.

[0028] The skeleton ring 220 is used to assemble the sealing ring 214 on the outside. The skeleton ring 220 can serve as the skeleton of the sealing ring 214, forming a sealing unit that combines rigidity and flexibility. The skeleton ring 220 can distribute pressure and reduce the direct wear of the sealing ring 214. The sealing ring 214 can maintain high elasticity and adapt to the dynamic deformation of frequent opening and closing.

[0029] The dynamic compensation component 217 includes a fixed column 221, which is fixedly connected to the outer wall of the fixed ring 218. An adjustable compensation column 222 is slidably arranged inside the fixed column 221. A fixed rod 223 is inserted inside the adjustable compensation column 222. The fixed rod 223 is fixedly arranged inside the fixed column 221. A spring 224 is wound around the surface of the fixed rod 223.

[0030] The connection between the sewage pipe 213 and the second connecting flange 212 is dynamically compensated by the dynamic compensation component 217. When the sealing ring 216 wears and a gap appears at the seal, the spring 224 can push the adjusting compensation column 222 to move, so that it squeezes the sealing ring 216, so that the sealing ring 216 always fits with the seal and no gap is generated, thus improving the sealing effect.

[0031] One end of the spring 224 is connected to the outer wall of the adjusting compensation column 222, and the other end of the spring 224 is connected to the damper 225, which is installed inside the fixed column 221.

[0032] The damper 225 can prevent the spring 224 from vibrating repeatedly, so that it can push the adjusting compensation column 222 with the force.

[0033] A slider 226 is fixedly connected to the side wall of the adjusting compensation column 222. The slider 226 is slidably disposed inside the slide groove 227, which is opened inside the fixed column 221.

[0034] When the adjusting compensation column 222 moves, the slider 226 slides synchronously inside the slide groove 227, thereby limiting the adjustment compensation column 222 and making its sliding more stable.

[0035] Working principle:

[0036] When using this vacuum toilet sealing device, the drain pipe 213 is connected to the valve seat 111 through the first connecting flange 211 and the second connecting flange 212. Multi-stage sealing is used to protect the connection. The first connecting flange 211 and the second connecting flange 212 are sealed with a sealing ring 214, and the drain pipe 213 and the second connecting flange 212 are sealed with a sealing ring 216. The sealing ring 216 can be dynamically compensated by a dynamic compensation component 217, so that the sealing lip is always in close contact with the contact surface, compensating for wear, improving the sealing effect and the service life of the sealing ring 216.

[0037] Using this vacuum toilet sealing device, the connection between the drain pipe 213 and the second connecting flange 212 is dynamically compensated by the dynamic compensation component 217. When the sealing ring 216 wears and a gap appears at the seal, the spring 224 can push the adjusting compensation column 222 to move, so that it squeezes the sealing ring 216, so that the sealing ring 216 always fits with the seal and no gap is generated, thus improving the sealing effect. The operation ends here.

[0038] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A vacuum toilet sealing device, comprising: The valve seat (111) and valve body (112) are characterized in that: a first connecting flange (211) is fixedly connected to both ends of the valve seat (111), a second connecting flange (212) is mounted on the first connecting flange (211), a drain pipe (213) is mounted on the second connecting flange (212), a sealing ring (214) is provided between the first connecting flange (211) and the second connecting flange (212), a fixing ring (215) is fixedly connected to the inner wall of the second connecting flange (212), a sealing ring (216) is provided at the connection between the drain pipe (213) and the fixing ring (215), the sealing ring (216) is connected to the fixing ring (218) through a dynamic compensation component (217), and the fixing ring (218) is fixedly connected to the outer wall of the drain pipe (213).

2. The vacuum toilet sealing device according to claim 1, characterized in that: The first connecting flange (211) and the second connecting flange (212) have mounting holes (219) inside, and bolts are installed inside the mounting holes (219).

3. The vacuum toilet sealing device according to claim 1, characterized in that: The sealing ring (214) is fixedly connected to the outside of the skeleton ring (220), and the skeleton ring (220) has an installation hole (219) inside.

4. The vacuum toilet sealing device according to claim 1, characterized in that: The dynamic compensation component (217) includes a fixed column (221), which is fixedly connected to the outer wall of the fixed ring (218). An adjusting compensation column (222) is slidably arranged inside the fixed column (221). A fixing rod (223) is inserted inside the adjusting compensation column (222). The fixing rod (223) is fixedly arranged inside the fixed column (221). A spring (224) is wound around the surface of the fixing rod (223).

5. A vacuum toilet sealing device according to claim 4, characterized in that: One end of the spring (224) is connected to the outer wall of the adjusting compensation column (222), and the other end of the spring (224) is connected to the damper (225), which is installed inside the fixed column (221).

6. A vacuum toilet sealing device according to claim 4, characterized in that: The adjusting compensation column (222) has a slider (226) fixedly connected to its side wall. The slider (226) is slidably disposed inside the slide groove (227), which is located inside the fixed column (221).

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