Limiting support, excrement collecting system and motor train unit

Abstract

The utility model provides a limiting support, an excrement collecting system and a motor train unit, and relates to the technical field of sensors, the limiting support comprises a support body, and the support body is used for being connected with a sliding valve position sensor on a sliding valve body; the support body is provided with a limiting part and a fixing part, the limiting part is provided with a limiting groove, and the limiting groove is used for being matched with a boss on a slide valve body so as to limit and fix a slide valve position sensor connected with the support body; and the fixing part is used for fixing a plug inserted on the slide valve position sensor. The bracket body can be limited through mutual matching of the limiting part and the boss on the slide valve body, so that the slide valve position sensor connected with the bracket body is limited and fixed in the direction in which displacement is easy to occur, and the problem that the slide valve position sensor is easy to displace in a high-frequency vibration environment of the motor train unit is solved; meanwhile, the fixing part solves the problem that the plug is easy to loosen.

Description

Technical Field

[0001] This application relates to the field of sensor technology, and in particular to a limiting bracket, a toilet collection system, and a high-speed train. Background Technology

[0002] A spool valve includes a spool valve body, a spool valve core, a spool valve position sensor, and a plug that connects to the spool valve position sensor. The spool valve core is housed within the spool valve body, while the spool valve position sensor is mounted on the spool valve body and is used to detect the position of the spool valve core. Spool valves are commonly used in the toilet systems of high-speed trains.

[0003] In the prior art, the position sensor of the spool valve is connected to the spool valve body by screws.

[0004] However, during operation, the high-frequency vibration of the EMU can easily cause the slide valve position sensor to shift and the plug to become loose. Utility Model Content

[0005] This application provides a limiting bracket, a toilet collection system, and a high-speed train to solve the problems that high-frequency vibration during high-speed train operation can easily cause displacement of the slide valve position sensor and loosening of the plug.

[0006] On the one hand, this application provides a limiting bracket, including:

[0007] A bracket body, which is used to connect to a slide valve position sensor on a slide valve body;

[0008] The bracket body is provided with a limiting part and a fixing part. The limiting part is provided with a limiting groove, which is used to cooperate with the boss on the slide valve body to limit and fix the slide valve position sensor connected to the bracket body. The fixing part is used to fix the plug inserted on the slide valve position sensor.

[0009] In some embodiments, the limiting bracket according to this application has the limiting portion located on one side of the bracket body, and the limiting groove is a slot for matching the boss.

[0010] In some embodiments, according to the limiting bracket of this application, the fixing part is disposed on the limiting part, the fixing part is a flange facing the bracket body, and the fixing part is used to abut against the top of the plug to fix the plug to the slide valve position sensor.

[0011] In some embodiments, the limiting bracket according to this application further includes a buffer pad disposed on the side of the fixing portion facing the bracket body, the buffer pad being used to abut against the top of the plug.

[0012] In some embodiments, the limiting bracket according to this application has a connecting portion on its body for connecting to the slide valve position sensor.

[0013] In some embodiments, the limiting bracket according to this application further includes a connector, wherein the connecting portion is a through hole formed on the bracket body, and the connector is used to connect to the slide valve position sensor through the through hole.

[0014] In some embodiments, the limiting bracket according to this application has a positioning part on the bracket body, the positioning part and the limiting part being located on opposite sides of the bracket body, and the positioning part being used to abut against the slide valve position sensor to position the bracket body.

[0015] In some embodiments, the positioning part of the limiting bracket according to this application is a flange on the bracket body.

[0016] In another aspect, this application also provides a waste collection system, including a slide valve and the limiting bracket described in the above embodiments, wherein the slide valve includes a slide valve body and the limiting bracket is connected to the slide valve body.

[0017] In another aspect, this application also provides a high-speed train, including a vehicle body and a limiting bracket as described in the above embodiments, or a toilet collection system as described in the above embodiments, which is installed on the vehicle body.

[0018] This application provides a limiting bracket, a toilet collection system, and a high-speed train. The limiting bracket includes a bracket body for connecting to a valve position sensor on a valve body. The valve position sensor is connected to the bracket body to prevent displacement of the valve position sensor relative to the bracket body in directions prone to displacement. The bracket body has a limiting part and a fixing part. The limiting part has a limiting groove for engaging with a boss on the valve body. The engagement of the limiting part with the boss limits the bracket body, thereby limiting and fixing the valve position sensor connected to the bracket body in directions prone to displacement, solving the problem of valve position sensor displacement in the high-frequency vibration environment of a high-speed train. The fixing part is used to fix the plug connected to the valve position sensor. While limiting and fixing the valve position sensor on the valve body, the limiting bracket, through the fixing part, also fixes the plug connected to the valve position sensor, solving the problem of the plug easily loosening in the high-frequency vibration environment of a high-speed train. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] Figure 1 This is a schematic diagram of the structure of the limiting bracket provided in this application;

[0021] Figure 2 Example diagram of the connection of the limiting bracket provided in this application on the slide valve;

[0022] Figure 3 An example diagram showing the connection of the limit bracket to the slide valve position sensor provided in this application;

[0023] Figure 4 for Figure 3 AA section view;

[0024] Figure 5 for Figure 3 BB section view;

[0025] Figure 6 This is an example diagram showing the fit between the limiting groove and the boss.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100-Slide valve body;

[0028] 110 - convex surface;

[0029] 120 - Spool valve position sensor;

[0030] 130-plug;

[0031] 140 - Screw parts;

[0032] 200-Limit Bracket;

[0033] 210 - Support body;

[0034] 211-Connecting part;

[0035] 220 - Limiting part;

[0036] 221-Limiting groove;

[0037] 230 - Fixing part;

[0038] 240 - Positioning section;

[0039] 250 - Connector.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0045] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0046] A spool valve includes a spool valve body, a spool valve core, a spool valve position sensor, and a plug that connects to the spool valve position sensor. The spool valve core is housed within the spool valve body, while the spool valve position sensor is mounted on the spool valve body and is used to detect the position of the spool valve core. Spool valves are commonly used in the toilet systems of high-speed trains.

[0047] In the prior art, the position sensor of the spool valve is connected to the spool valve body by screws.

[0048] However, during operation, the high-frequency vibration of the EMU can easily cause the slide valve position sensor to shift and the plug to become loose.

[0049] For example, the slide valve body is provided with a slide groove (e.g., a dovetail groove, or a T-shaped groove), and the slide valve position sensor is provided with a slider part for cooperating with the slide groove. The slider part cooperates with the slide groove, and the screw connects the slider part in the slide groove. During the operation of the EMU, high-frequency vibration can easily cause the slide valve position sensor to displace along the slide groove direction, and can also easily cause the plug to loosen.

[0050] For example, in high-speed trains, the sliding valve position sensor experiences a forward and backward offset of ±2.5mm under vibration, resulting in a detection error rate as high as 15% and significant deviations in the data transmitted to the back-end control system. Once this detection deviation occurs, technicians must perform maintenance and calibration of the sliding valve position sensor during high-speed train maintenance. Each calibration takes an average of 1.5 hours, leading to low maintenance efficiency. Furthermore, each calibration of the sliding valve position sensor 120 requires specialized equipment, with long-term spare parts costs accounting for 30% of the overall high-speed train maintenance cost. Therefore, those skilled in the art urgently need to address the problems in the existing technology. The plug loosens on average twice a month.

[0051] To address the aforementioned problems, this application provides a limiting bracket, a waste collection system, and a high-speed train. The limiting bracket includes a bracket body for connecting to a valve position sensor on a valve body. Connecting the valve position sensor to the bracket body prevents displacement of the valve position sensor relative to the bracket body in directions prone to displacement. The bracket body has a limiting part and a fixing part. The limiting part has a limiting groove that engages with a boss on the valve body to limit and fix the valve position sensor connected to the bracket body. The engagement of the limiting part with the boss on the valve body limits the bracket body, thereby limiting and fixing the valve position sensor connected to the bracket body in directions prone to displacement, solving the problem of valve position sensor displacement in the high-frequency vibration environment of a high-speed train. The fixing part is used to fix the plug inserted into the valve position sensor. The limiting bracket not only limits and fixes the valve position sensor on the valve body, but also fixes the plug connected to the valve position sensor through the fixing part; thus solving the problem that the plug connected to the valve position sensor is easy to loosen in the high-frequency vibration environment of the EMU.

[0052] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0053] On the one hand, this application provides a limiting bracket, referring to Figures 1 to 5 The limit bracket includes a bracket body 210, which is used to connect to the slide valve position sensor 120 on the slide valve body 100.

[0054] The bracket body 210 is provided with a limiting part 220 and a fixing part 230; the limiting part 220 is provided with a limiting groove 221, which is used to cooperate with the boss 110 on the slide valve body 100 to limit and fix the slide valve position sensor 120 connected to the bracket body 210; the fixing part 230 is used to fix the plug 130 inserted into the slide valve position sensor 120.

[0055] When in use, the limiting bracket 200 is connected to the valve body 100 by the interaction between the limiting groove 221 and the boss 110 on the valve body 100; the valve position sensor 120 on the valve body 100 is connected through the bracket body 210. This limits and fixes the valve position sensor 120 on the valve body 100 in the direction where displacement is likely to occur; at the same time, the fixing part 230 also fixes the plug 130 inserted into the valve position sensor.

[0056] In a specific implementation of this application, the connection between the bracket body 210 and the slide valve position sensor 120 on the slide valve body 100 can be a fixed connection (e.g., fixed by adhesive) or a detachable connection; it is sufficient to fix the bracket body 210 and the slide valve position sensor 120 relatively in the direction in which the slide valve position sensor 120 is prone to displacement. Detachable connections include, for example, plug-in, abutment, and bolt connections.

[0057] Reference Figures 2 to 5 To facilitate subsequent maintenance and calibration of the valve position sensor 120 by technicians, the bracket body 210 and the valve position sensor 120 on the valve body 100 are detachably connected. Maintenance and calibration of the valve position sensor 120 by technicians includes, for example, disassembling and replacing the valve position sensor 120, readjusting the connection position of the valve position sensor 120 on the valve body 100, or calibrating the sensitivity of the valve position sensor 120. For the disassembly and replacement of the valve position sensor 120, the detachable connection between the bracket body 210 and the valve position sensor 120 on the valve body 100, compared to a fixed connection, firstly reduces the difficulty of disassembling the old valve position sensor, increases the disassembly speed, and thus improves work efficiency; secondly, it avoids damage to the bracket body 210 and / or the old valve position sensor during disassembly, allowing the bracket body 210 and / or the old valve position sensor to be reused, thereby reducing the maintenance cost of the EMU. For readjusting the position of the valve position sensor 120, the bracket body 210 and the valve position sensor 120 on the valve body 100 are detachably connected. Compared to a fixed connection, this facilitates: 1) quickly releasing the displacement restriction of the limit bracket 200 on the valve position sensor 120, improving the efficiency of position adjustment; and 2) preventing damage to the valve position sensor 120 during adjustment, avoiding rework maintenance issues and ensuring operational efficiency. For calibrating the sensitivity of the valve position sensor 120, the bracket body 210 and the valve position sensor 120 on the valve body 100 are detachably connected. Compared to a fixed connection, this facilitates quickly releasing the limit bracket's restriction on the valve position sensor 120, improving maintenance efficiency, removing potential obstructions to the calibration operation position, and preventing damage to the limit bracket and / or the valve position sensor 120, while also facilitating reconnection and fixation.

[0058] In this application, the boss 110 on the slide valve body 100 is a raised structure; the structure of the limiting groove 221 is designed according to the structure of the available boss 110 on the slide body 1. The design of the limiting groove 221 is sufficient to achieve the function of limiting the displacement of the slide valve position sensor in the easy displacement direction after the limiting groove 221 and the boss 110 are engaged.

[0059] For example, refer to Figure 6 In this configuration, the valve body 100 has a dovetail groove, and the valve position sensor 120 has a slider part for engaging with the dovetail groove. The slider part engages with the dovetail groove, and the left side of the valve position sensor 120 abuts against the left end of the dovetail groove. A screw connects the slider part to the dovetail groove, thereby connecting the valve position sensor 120. In this configuration, the valve position sensor 120 is prone to sliding to the right in a high-frequency vibration environment. In this case, the left side of the limiting groove 221 on the limiting part 220 engages with the boss 110 to restrict the valve position sensor 120 connected to the bracket body 210 from moving to the right.

[0060] For example, refer to Figure 1 The bracket body 210 can be made of metal, fiberglass, plastic, or ceramic.

[0061] In this embodiment, the support body 210 is made of 304 stainless steel. 304 stainless steel is a general-purpose stainless steel widely used in the manufacture of equipment and components requiring good overall performance (corrosion resistance and formability). To maintain the inherent corrosion resistance of stainless steel, the main components of 304 stainless steel contain more than 18% chromium and more than 8% nickel (by mass fraction). 304 stainless steel can withstand high temperatures up to 800℃ and has good processing performance and high toughness.

[0062] In some implementations, refer to Figure 1 and Figure 2 The limiting part 220 is located on one side of the bracket body 210, and the limiting groove 221 is a slot for matching the boss 110.

[0063] Reference Figures 3 to 5 The side of the bracket body 210 facing the slide valve position sensor is defined as the bottom surface of the bracket body 210, and the side of the bracket body 210 away from its bottom surface is defined as the top surface of the bracket body 210. The limiting part 220 is located on one side of the bracket body 210, which helps to expose the bottom and top surfaces of the bracket body 210 as completely as possible, leaving a connection area for the connection between the bracket body 210 and the slide valve position sensor; or reserving working space for the connection between the bracket body 210 and the slide valve position sensor.

[0064] Reference Figure 1 and Figure 2 The limiting groove 221 is a slot for matching the boss 110, which facilitates the quick and efficient connection of the limiting part 220 to the boss 110, thereby improving the efficiency of EMU operation and maintenance. After the limiting groove 221 in the form of a slot is attached to the boss 110, the bracket body 210 can be restricted in the easy displacement direction of the slide valve position sensor.

[0065] In some implementations, refer to Figures 1 to 5 The fixing part 230 is provided on the limiting part 220. The fixing part 230 is a flange facing the bracket body 210, which makes it easy for the limiting bracket 200 to be manufactured by sheet metal processing. The fixing part 230 is used to abut against the top of the plug 130 to fix the plug 130 to the slide valve position sensor. This facilitates quick fixation of the plug and improves the efficiency of operation and maintenance. After the bracket body 210 is connected to the slide valve position sensor, the fixing part 230 abuts and presses against the plug 130, and maintains this action, thereby fixing the plug and preventing the plug from falling off due to vibration.

[0066] In some implementations, refer to Figure 1 and Figure 2 The limit bracket 200 also includes a buffer pad, which is disposed on the side of the fixing part facing the bracket body 210. The buffer pad is used to abut against the top of the plug. When the buffer pad abuts against the plug, it helps to prevent the fixing part from applying excessive pressure to the plug, thus protecting both the plug and the slide valve position sensor.

[0067] For example, the cushioning pad can be a rubber pad, a silicone pad, or a flexible plastic pad.

[0068] In some implementations, refer to Figure 1 and Figure 5 The bracket body 210 is provided with a connecting part 211, which is used to connect with the slide valve position sensor.

[0069] For example, the connecting part 211 may be a plug-in feature for quick-release connection with the spool valve position sensor 120, or it may be some features for abutting connection with the spool valve position sensor, or it may be some related features for mounting the connector.

[0070] In some implementations, refer to Figure 1 and Figure 2 The limiting bracket 200 also includes a connector 250, and the connecting part 211 is a through hole formed on the bracket body. The connector 250 is used to connect to the slide valve position sensor through the through hole.

[0071] For example, refer to Figures 3 to 5As shown, the connecting part 250 is a bolt. The bolt passes through a bolt washer and then through a through hole, and the bolt is threaded onto the spool valve position sensor 120. The bolt then presses the bracket body 210 onto the spool valve position sensor 120, achieving a detachable connection. For some existing spool valve position sensors, the sensor has a hole for connecting the screw 140, which has an internal thread. For this type of spool valve position sensor, a bolt that matches the internal thread of the hole can be selected as the connecting part 250. When using the limiting bracket of this embodiment for limiting and fixing this type of spool valve position sensor, no structural design adjustments to the spool valve position sensor are required. For the production of high-speed trains, this solves the problem of spool valve position sensors easily displacing due to vibration without modifying the relevant production line. For the operation and maintenance of the actuators, no corresponding modifications to the spool valve position sensor are required during maintenance to achieve limiting and fixing work, improving maintenance efficiency.

[0072] For example, the connector 250 can also be a connector block with a stop. After passing through the through hole, the connector block is fixed to the slide valve position sensor by adhesive. The stop presses the bracket body against the slide valve position sensor.

[0073] For example, the connector can also be a connector block with a stop. The slide valve position sensor has a hole. The connector block passes through the through hole and is inserted into the hole on the slide valve position sensor. The connector block is fixed to the hole of the slide valve position sensor by adhesive. The stop presses the bracket body against the slide valve position sensor.

[0074] In some implementations, refer to Figure 1 and Figure 2 The bracket body 210 is provided with a positioning part 240, and the positioning part 240 and the limiting part 220 are respectively located on opposite sides of the bracket body 210. The positioning part 240 is used to abut against the slide valve position sensor to position the bracket body. By abutting against the slide valve position sensor with the positioning part 240, the bracket body 210 can be positioned on the slide valve position sensor, which facilitates the installation and operation of the bracket body 210 on the slide valve position sensor.

[0075] In some implementations, refer to Figure 1 and Figure 2 The positioning part 240 is a flange on the bracket body 210. It is easy to process using sheet metal processing equipment, and the processing cost is low.

[0076] Reference Figure 1 and Figure 2The limiting bracket 2 provided in this application can be applied to the operation and maintenance of existing EMU trains, which helps to improve the efficiency of operation and maintenance work and save operation and maintenance costs; it can also be used in the production of improved toilet systems or EMU trains. Compared with the production of existing slide valve position sensors, the material cost of a single piece of the limiting bracket provided in this application only increases by 0.5%-1%, and there is no need to change the existing production line equipment.

[0077] Furthermore, the waste collection system provided in this application includes a slide valve and the aforementioned limiting bracket. The slide valve includes a slide valve body, and the limiting bracket is connected to the slide valve body. The waste collection system provided in this application has a slide valve position sensor that is less prone to displacement, and the plug on the slide valve sensor is less likely to loosen. The waste collection system provided in this application also features low maintenance costs and high efficiency for the slide valve position sensor.

[0078] On the other hand, the system provides a high-speed train, including the vehicle body and the aforementioned limiting bracket installed on the vehicle body, or the aforementioned toilet system installed on the vehicle body. The advantage of the high-speed train is that the valve position sensor fixed by its limiting bracket is not easily displaced, resulting in low cost and high efficiency in maintaining the position of the valve position sensor.

[0079] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0080] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A position-limiting support, characterized in that, The application relates to a limiting support for a slide valve position sensor. The support body is provided with a limiting part and a fixing part, the limiting part is provided with a limiting groove for matching with a boss on the slide valve body to limit and fix the slide valve position sensor connected with the support body, and the fixing part is used for fixing a plug inserted in the slide valve position sensor. The limiting part is located on one side of the support body, and the limiting groove is a clamping groove for matching with the boss.

2. The position-limiting support according to claim 1, characterized in that The fixing part is arranged on the limiting part, the fixing part is a flange towards the support body, and the fixing part is used for abutting against the top of the plug to fix the plug on the slide valve position sensor.

3. The position-limiting support according to claim 1, characterized in that A buffer pad is further arranged on the side of the fixing part towards the support body, and the buffer pad is used for abutting against the top of the plug.

4. The position limiter bracket of claim 1, wherein The support body is provided with a connecting part for connecting with the slide valve position sensor.

5. The limit bracket according to any one of claims 1-4, characterized in that A connecting piece is further arranged, the connecting part is a through hole arranged on the support body, and the connecting piece is used for connecting with the slide valve position sensor through the through hole.

6. The limit bracket of claim 5, wherein The support body is provided with a positioning part, the positioning part and the limiting part are respectively located on opposite sides of the support body, and the positioning part is used for abutting against the slide valve position sensor to position the support body.

7. The limit bracket according to any one of claims 1-4, wherein The positioning part is a flange on the support body.

8. The limit bracket of claim 7, wherein, The application further relates to a slide valve comprising the slide valve body and the limiting support according to any one of claims 1-8.

9. A system for collecting waste, characterized by The application further relates to a vehicle body and the limiting support according to any one of claims 1-8 arranged on the vehicle body, or the excrement collecting system according to claim 9 arranged on the vehicle body.

10. A train set, characterized in that ​

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