Welding tool for dirt box of vacuum excrement collector

The automated positioning achieved by the slots and positioning components of the vacuum toilet sludge bin welding fixture solves the problem of weld misalignment, improves welding accuracy and efficiency, and ensures the welding quality and consistency of the sludge bin.

CN224128991UActive Publication Date: 2026-04-17QINGDAO CHUANGXIANG RAIL TRANSIT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO CHUANGXIANG RAIL TRANSIT EQUIP CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In the welding process of high-speed rail waste bins, reliance on manual operation leads to weld misalignment, affecting welding quality and efficiency, and making it difficult to guarantee welding consistency in large-scale production.

Method used

A welding fixture for vacuum toilet sludge tanks is adopted, including a base frame, a positioning frame, and a positioning component. The bottom plate and side plate of the sludge tank are fixed by the slots and the positioning component, realizing automated positioning and welding and reducing reliance on manual operation.

Benefits of technology

It improves welding precision and efficiency, reduces weld misalignment, simplifies operation procedures, ensures welding consistency, and enhances the overall performance of the waste bin.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding tools for vacuum toilet waste tanks, in particular to a welding tool for a vacuum toilet waste tank, which comprises a bottom frame, a baffle, a positioning frame, a positioning component and the like. A clamping groove is formed in the bottom frame through a baffle and the side edge, the positioning frame is connected to the bottom frame in a sliding mode and fixes the side plate through the positioning assembly, and the positioning assembly achieves accurate positioning through a screw. In addition, the tool further comprises a sliding groove, an inclined face, a feeding pipe positioning groove, a locking assembly of a top plate mounting plate and the like, and the stability and convenience of assembly and welding of all parts of the sewage box are effectively improved. The technical effects that a traditional manual splicing mode is replaced, the welding efficiency and the positioning precision are remarkably improved, and meanwhile the operation process is simplified are achieved.
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Description

Technical Field

[0001] This application relates to the field of welding fixtures for vacuum toilet waste tanks, and in particular to a welding fixture for a vacuum toilet waste tank. Background Technology

[0002] In high-speed rail sanitation systems, waste bins are a core component, and their welding quality directly affects their sealing performance, strength, and service life. With the rapid development of high-speed rail technology and the continuous increase in operating mileage, the demand for waste bins is showing a trend of large-scale growth. To meet the safety and reliability requirements of high-speed rail operation, the manufacturing process of waste bins needs continuous improvement, especially in the welding stage, where high-quality welding is crucial to ensuring the performance of the waste bins. Currently, commonly used methods in the welding process of waste bins include, but are not limited to, argon arc welding and laser welding. These welding methods typically rely on the operator's experience to manually adjust the position of the bin and weld it in sections. Specifically, the operator first folds the two sides of the base plate upwards to form side plates, then assembles the side plates with the base plate manually, and finally welds them in place. In addition, some simple clamps or support tools may be used to assist in positioning, but these methods are still mainly manual operations. However, the above-mentioned traditional methods rely heavily on manual experience in the welding process, which easily leads to weld misalignment, thus affecting the quality and efficiency of the welding. Especially in large-scale production, this reliance on manual methods makes it difficult to guarantee the welding consistency of each product, thus adversely affecting the overall performance of the waste bin. Therefore, there is an urgent need for a technical means to effectively solve the problem of weld misalignment and improve welding accuracy. Utility Model Content

[0003] The purpose of this application is to overcome the above-mentioned technical problems and provide a welding fixture for a vacuum toilet waste tank.

[0004] A welding fixture for a vacuum toilet waste tank includes a square base frame. A baffle plate is fixedly connected inside the base frame, and the baffle plate and three sides of the base frame form slots for placing the waste tank. A positioning frame is slidably connected to the base frame, and positioning components for positioning the side panels are provided at both ends of the positioning frame. By adopting this technical solution, when using the waste tank, the user first folds the two sides of the bottom plate upwards to form side panels, with the side panels perpendicular to the bottom plate, so that the bottom plate and side panels are engaged in the slots. The positioning frame slides to abut against one of the side panels, and the remaining two side panels are inserted into the slots. The positioning components at both ends of the positioning frame fix the side panels, thus assembling the bottom plate and four side panels of the waste tank. This facilitates welding and fixing of the bottom plate and four side panels, replacing traditional manual welding. It not only facilitates welding for workers but also makes positioning of the waste tank easier.

[0005] Preferably, the positioning component includes a fixing frame, which is fixedly connected to the positioning frame. A screw is threaded onto the fixing frame, and the screw is horizontally oriented axially. The screw abuts against the outer wall of the side plate. Using this technical solution, when the user uses the device, the side plate is inserted into the slot, so that both sides of the side plate abut against the other two side plates. The screw is then rotated until its end abuts against the side plate, thus securing the side plate against the base plate and the other two side plates. Preferably, a support rod is fixedly connected to the fixing frame, and two screws are threaded onto the fixing frame. One screw is threaded onto the support rod. Using this technical solution, when the user positions the side plate, all three screws abut against the side wall of the side plate, increasing the support points and making the side plate more stable. Preferably, a sliding groove is provided on the base frame, and sliders are fixedly connected to both sides of the bottom of the positioning frame. The sliders are slidably connected to the sliding groove, and bolts are threaded onto the sliders. By adopting the above technical solution, when using the device, after assembling the base plate and side plates, the user pushes the positioning frame to slide to the outside of the side plates to limit the side plates, facilitating the fixing of the four side walls of the waste bin and making welding easier. Preferably, the inner wall of the base frame corresponding to the slot has an inclined surface. By adopting the above technical solution, when using the device, the inclined surface facilitates the installation of the base plate and side plates into the slot, and the inclined surface serves as a guide and limiter. Preferably, a connecting rod is fixedly connected to the fixing frame. The connecting rod is L-shaped, and a positioning groove for engaging the feed pipe is formed between the connecting rod and the fixing frame. By adopting the above technical solution, when using the device, after the side plates are installed, the user installs the feed pipe onto the side plates, so that the feed pipe engages in the positioning groove, facilitating welding of the feed pipe and the side plates. Preferably, a locking plate is fixedly connected to the positioning frame. The locking plate is L-shaped and is used to limit the mounting plate on the top of the top plate. The top of the locking plate is provided with a locking assembly for locking multiple mounting plates. By adopting the above technical solution, when the user uses the device, after the top plate is welded, the mounting plate is placed on the clamping plate, with the bottom of the mounting plate abutting against the bottom of the top plate. The mounting plate is then fixed to the clamping plate using a locking assembly, facilitating welding between the mounting plate and the top plate. Preferably, the locking assembly includes a locking plate fixedly connected to the top of the clamping plate. The locking plate is L-shaped, and a limiting groove is formed between the locking plate and the clamping plate for the mounting plate to pass through. A bolt is threaded onto the top of the locking plate. By adopting the above technical solution, when the user uses the device, the mounting plate is clamped into the limiting groove. By tightening the bolt on the top of the locking plate, the bolt clamps the clamping plate and the locking plate together, thus fixing the mounting plate and the top plate, facilitating welding between the mounting plate and the top plate. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of the waste bin in Embodiment 1 of this application;

[0007] Figure 2 This is a schematic diagram of Embodiment 2 of this application and the waste bin;

[0008] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this application;

[0009] Figure 4 This is a structural diagram designed to highlight the slider and the groove.

[0010] Reference numerals: 1. Base frame; 11. Slide groove; 2. Baffle; 21. Slot; 22. Inclined surface; 3. Positioning frame; 31. Slider; 32. Plate; 33. Locking assembly; 331. Locking plate; 332. Limiting groove; 4. Positioning assembly; 41. Fixing frame; 42. Screw; 43. Support rod; 44. Connecting rod; 45. Positioning groove; 5. Waste bin; 51. Base plate; 52. Side plate; 53. Top plate; 54. Feed pipe; 55. Mounting plate. Detailed Implementation

[0011] The following will be combined with the appendix Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. The described embodiments are only possible technical implementations of this utility model and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of this utility model without creative effort, and these embodiments are also within the protection scope of this utility model.

[0012] Example 1

[0013] The vacuum toilet waste tank 5 provided in Embodiment 1 of the application refers to... Figure 1 The container includes a box body, which includes a bottom plate 51. The bottom plate 51 has side plates 52 integrally formed at both ends. The bottom plate 51 is assembled with side plates 52 on both sides perpendicular to the integrally formed side plates 52. One of the side plates 52 is equipped with a feed pipe 54, which is used to guide feces and other waste into the waste container 5. The top of the side plate 52 is assembled with a top plate 53. The top plate 53 is assembled with two mounting plates 55. The mounting plates 55 are L-shaped and are used to connect the waste container 5 to a high-speed train.

[0014] Example 2

[0015] This application provides a welding fixture for a vacuum toilet waste tank 5 according to embodiment 2, referring to... Figure 2 and Figure 3 The system includes a base frame 1, which is square in shape. A baffle 2 is fixedly connected inside the base frame 1, forming slots 21 with the three sides of the base frame 1 for placing the waste bin 5. A positioning frame 3 is slidably connected to the base frame 1, and positioning components 4 for positioning the side plates 52 are provided at both ends of the positioning frame 3. This structure effectively solves the problem of weld misalignment and improves welding accuracy and efficiency.

[0016] Specifically, the base frame 1 is made of steel plate, and a baffle 2 is fixedly connected inside it to serve as a separator. The baffle 2 can be connected to the base frame 1 by bolts or welding. The baffle 2 and the three sides of the base frame 1 form a slot 21. The inner wall of the slot 21 has an inclined surface 22. The inclined surface 22 facilitates the installation of the base plate 51 and the side plate 52 into the slot 21, and also serves as a guide and limiter. For example, the angle of the inclined surface 22 can be set between 30 degrees and 45 degrees to ensure that the base plate 51 and the side plate 52 can slide smoothly into the slot 21 and remain stable.

[0017] The positioning frame 3 achieves a sliding connection through the cooperation of the slider 31 and the slide groove 11. The slider 31 is fixedly connected to the bottom of the positioning frame 3, and the slide groove 11 is formed on the base frame 1. The cooperation between the slider 31 and the slide groove 11 can be in the form of a dovetail groove. This structure has good guiding and stability, and can effectively prevent the positioning frame 3 from shifting during sliding. The slider 31 is also threaded with bolts. The user can fix the slider 31 and the slide groove 11 by tightening the bolts, thereby locking the positioning frame 3 in the desired position.

[0018] The positioning assembly 4 includes a fixing frame 41, screws 42, and a support rod 43. The fixing frame 41 is fixedly connected to the positioning frame 3, and two screws 42 are threaded onto the fixing frame 41. One screw 42 is threaded onto the support rod 43. The fixing frame 41 can be a rectangular frame structure made of cast iron or aluminum alloy, possessing high strength and rigidity. The screws 42 are axially horizontally positioned. The user rotates the screws 42 until their ends abut against the outer wall of the side plate 52, thereby securing the side plate 52 against the base plate 51 and the other two side plates 52. The support rod 43 serves to increase the support points for the side plate 52, making the side plate 52 more stable. For example, the support rod 43 can be a cylindrical structure made of stainless steel, and its diameter can be adjusted according to actual needs, typically between 10mm and 20mm.

[0019] In addition, refer to Figure 4 A connecting rod 44 is also fixedly connected to the fixing frame 41. The connecting rod 44 is L-shaped, and a positioning groove 45 for engaging the feed tube 54 is formed between the connecting rod 44 and the fixing frame 41. The shape and size of the positioning groove 45 can be designed according to the specifications of the feed tube 54 to ensure that the feed tube 54 can be firmly engaged in the positioning groove 45. For example, the depth of the positioning groove 45 can be set to 1.2 times the diameter of the feed tube 54, and the width can be slightly larger than the outer diameter of the feed tube 54 to facilitate the installation and removal of the feed tube 54.

[0020] A clamping plate 32 is fixedly connected to the positioning frame 3. The clamping plate 32 is L-shaped and is used to limit the mounting plate 55 on the top of the top plate 53. A locking assembly 33 is provided on the top of the clamping plate 32. The locking assembly 33 includes a locking plate 331 fixedly connected to the top of the clamping plate 32. The locking plate 331 is L-shaped, and a limiting groove 332 is formed between the locking plate 331 and the clamping plate 32 for the mounting plate 55 to pass through. A bolt is threaded to the top of the locking plate 331. By tightening the bolt, the mounting plate 55 can be fixed to the clamping plate 32, which facilitates welding of the mounting plate 55 and the top plate 53. The locking plate 331 in the locking assembly 33 is also made of high-strength steel, and its thickness is the same as that of the clamping plate 32. The width of the limiting groove 332 between the locking plate 331 and the clamping plate 32 is slightly larger than the thickness of the mounting plate 55, usually between 1mm and 2mm, to ensure that the mounting plate 55 can be smoothly inserted into the limiting groove 332. The bolts on the top of the locking plate 331 can be either hex head bolts or wing bolts. The former is suitable for tool operation, while the latter is easy to tighten manually.

[0021] The implementation principle of this embodiment is as follows: by folding the two sides of the base plate 51 upwards to form side plates 52, and inserting them into the slots 21, the side plates 52 are fixed by the positioning frame 3 and the positioning assembly 4, thereby achieving rapid assembly of the waste bin 5. Compared with the traditional manual assembly method, this solution can significantly improve welding accuracy and efficiency, reduce the probability of weld misalignment, simplify the operation process, and reduce the dependence on operator experience.

[0022] By adding the clamping plate 32 and the locking assembly 33, precise positioning of the top plate 53 and the mounting plate 55 is achieved, further improving the functionality and practicality of the welding fixture. This design not only meets the welding requirements of the overall structure of the waste bin 5, but also effectively avoids welding quality problems caused by positional deviations of the top plate 53 and the mounting plate 55, thereby comprehensively improving the performance of the welding fixture.

[0023] 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 vacuum toilet bowl waste tank welding fixture, characterized by: Includes a base frame (1), which is square in shape. A baffle (2) is fixedly connected inside the base frame (1). The baffle (2) and the three sides of the base frame (1) form a slot (21) for placing the waste bin (5). A positioning frame (3) is slidably connected on the base frame (1). Positioning components (4) for positioning the side plate (52) are provided at both ends of the positioning frame (3).

2. The vacuum closet bowl welding tooling of claim 1, wherein: The positioning component (4) includes a fixing frame (41), which is fixedly connected to the positioning frame (3). A screw (42) is threadedly connected to the fixing frame (41). The screw (42) is axially horizontal and is used to abut against the outer side wall of the side plate (52).

3. The vacuum toilet bowl waste tank welding fixture of claim 2, wherein: A support rod (43) is fixedly connected to the fixed frame (41), and two screws (42) are threadedly connected to the fixed frame (41), while one screw (42) is threadedly connected to the support rod (43).

4. The vacuum toilet bowl waste tank welding fixture of claim 1, wherein: The base frame (1) is provided with a sliding groove (11), and the bottom sides of the positioning frame (3) are fixedly connected with sliders (31). The sliders (31) are slidably connected in the sliding groove (11), and bolts are threaded on the sliders (31).

5. The vacuum toilet bowl waste tank welding fixture of claim 1, wherein: The base frame (1) has an inclined surface (22) on the inner wall corresponding to the slot (21).

6. The vacuum toilet bowl waste tank welding fixture of claim 3, wherein: A connecting rod (44) is fixedly connected to the fixed frame (41). The connecting rod (44) is L-shaped and a positioning groove (45) for engaging the feed pipe (54) is formed between the connecting rod (44) and the fixed frame (41).

7. The vacuum toilet bowl waste tank welding fixture of claim 1, wherein: The positioning frame (3) is fixedly connected to a clamping plate (32), which is L-shaped. The clamping plate (32) is used to limit the mounting plate (55) on the top of the top plate (53). The top of the clamping plate (32) is provided with a locking assembly (33) for locking multiple mounting plates (55).

8. The vacuum toilet bowl waste tank welding fixture of claim 7, wherein: The locking assembly (33) includes a locking plate (331) fixedly connected to the top of the clamping plate (32). The locking plate (331) is L-shaped. A limiting groove (332) is formed between the locking plate (331) and the clamping plate (32) for the mounting plate (55) to pass through. The top of the locking plate (331) is threaded with a bolt.