Ejector for totally-closed vacuum excrement collector of rail train

Abstract

The utility model discloses an ejector for a totally-enclosed vacuum excrement collector of a rail train, which comprises a main body assembly, an air outlet pipe and a splicing flange, the ejector body and the air outlet pipe are connected through a splicing flange. The mounting assembly comprises a hoop, a connecting block, a spring column, a fixing plate and a clamping column; the hoop sleeves the air outlet pipe close to the splicing flange through a bolt, the connecting blocks are welded to the two sides of the splicing flange, the spring columns are hinged to the ends, away from the splicing flange, of the connecting blocks, the fixing plate is connected to the movable ends of the spring columns through screws, and the clamping columns are connected to the other end of the fixing plate through screws. The utility model relates to an ejector, and aims to solve the problems that when an existing ejector is mounted, flanges are connected together through bolts, the inner space of an excrement collector is narrow, the movement range of operators is limited during mounting and maintenance, mounting inconvenience is caused, on the other hand, the bolts are easy to fall off, and the working efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ejectors, in particular to an ejector for a fully enclosed vacuum toilet of a rail train. Background Technique

[0002] The ejector for a fully enclosed vacuum toilet of a rail train is a device that works based on the Venturi principle and is used to create and maintain a vacuum state for collecting and treating sewage and waste.

[0003] Currently, querying a Chinese patent for a vacuum ejector with an annular nozzle, the publication number is CN 210686467 U, which includes an air inlet chamber, a baffle, and an exhaust chamber; the air inlet chamber is in a semi-capsule shape, with an air inlet at the circular end, connected to an air compressor, a flange I at the other end, and a J-shaped vacuum pipe is arranged on the side wall near the flange I. The bottom of the J-shaped vacuum pipe extends into the bottom of the air inlet chamber and reaches the plane of the flange I, and forms an annular narrow slit nozzle with the inner wall of the air inlet chamber; the exhaust chamber is in a cylindrical shape, with a flange II at one end and an air outlet at the other end; the air inlet chamber is connected to the flange II of the exhaust chamber through the flange I; the baffle is installed between the air inlet chamber and the exhaust chamber, and is hinged at the top and can be opened towards the exhaust chamber side. The whole structure consists of only three major parts, with lower manufacturing cost, simple and novel structure, not easy to be damaged, long service life, more water-saving, and more in line with the use of the existing rail train vacuum toilet system.

[0004] However, it still has the following drawbacks in actual use:

[0005] When the existing ejector is installed, the flanges are connected by bolts. Due to the narrow space inside the toilet, the operating range of the operator is limited during installation and maintenance, which will cause inconvenience in installation. On the other hand, it is also easy for the bolts to fall off, resulting in a reduction in work efficiency. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an ejector for a fully enclosed vacuum toilet of a rail train to solve the problem proposed in the above background technique that when the existing ejector is installed, the flanges are connected by bolts. Due to the narrow space inside the toilet, the operating range of the operator is limited during installation and maintenance, which will cause inconvenience in installation. On the other hand, it is also easy for the bolts to fall off, resulting in a reduction in work efficiency.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model provides an ejector for a fully enclosed vacuum toilet of a rail train, including:

[0009] The main body component, which includes an injector body, an air outlet pipe, and a splicing flange;

[0010] The injector body and the air outlet pipe are connected through the splicing flange, and a baffle is hinged at the splicing flange at one end of the air outlet pipe;

[0011] The installation component, which includes a hoop, a connecting block, a spring column, a fixing plate, and a clamping column;

[0012] The hoop is sleeved on the air outlet pipe near the splicing flange through bolts, the connecting block is welded on both sides of the splicing flange, the spring column is hinged at the end of the connecting block away from the splicing flange, the fixing plate is connected to the movable end of the spring column through screws, and the clamping column is connected to the other end of the fixing plate through screws.

[0013] Further, there are two groups of the clamping columns, which are clamped in the installation holes opened on the splicing flange.

[0014] Further, the main body component further includes a J-shaped vacuum tube and an air inlet pipe;

[0015] One end of the J-shaped vacuum tube is welded inside the injector body, and the other end penetrates through the injector body and leads to the outside. The air inlet pipe is opened at one end of the injector body away from the splicing flange.

[0016] Further, the main body component further includes a groove;

[0017] The groove is opened at one end of the air outlet pipe near the splicing flange and protrudes from the air outlet pipe.

[0018] Further, it further includes a limiting component;

[0019] The limiting component includes an external thread and a connecting ring;

[0020] The external thread is opened at the fixed end of the spring column and near the movable end, and the connecting ring is screwed on the external thread.

[0021] Further, the limiting component further includes an adjusting rod and an arc-shaped limiting plate;

[0022] The adjusting rod penetrates through and is screwed on the upper end of the connecting ring, and the arc-shaped limiting plate is rotatably connected to the lower end of the adjusting rod.

[0023] Compared with the prior art, the advantages of the present utility model are as follows:

[0024] 1. The utility model, through the provided installation component, connects the hoop to the outlet pipe in advance. When installing the injection gas body, align the splicing flange, pull the spring post on the connection block, so that the fixing plate drives the clamping post to move. When the clamping post moves to the other side of the splicing flange on the injector body, rotate the spring post, release the fixing plate, and snap the clamping post into the installation hole of the splicing flange. This setting can quickly disassemble and assemble the injector body, and improve the installation and maintenance efficiency.

[0025] 2. The utility model, through the provided limiting component, when the clamping post is snapped into the installation hole of the splicing flange, turn the adjusting rod on the connection ring to drive the arc-shaped limiting plate to snap onto the movable end of the spring post. This setting can prevent the spring post from shaking and affecting the sealing effect of the splicing flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is the overall structure schematic diagram of the present utility model;

[0028] Figure 2 It is the structure schematic diagram of the main body component of the present utility model;

[0029] Figure 3 It is the structure schematic diagram of the installation component of the present utility model;

[0030] Figure 4 It is the schematic diagram of the spring post of the present utility model;

[0031] Figure 5 It is the partial structure schematic diagram of the limiting component of the present utility model.

[0032] In the drawings, the list of components represented by each reference numeral is as follows:

[0033] 10. Injector body; 11. J-shaped vacuum tube; 12. Inlet pipe; 13. Outlet pipe; 14. Splicing flange; 15. Groove; 20. Hoop; 21. Connection block; 22. Spring post; 23. Fixing plate; 24. Clamping post; 30. External thread; 31. Connection ring; 32. Adjusting rod; 33. Arc-shaped limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will give a detailed description of the specific embodiments of the present utility model in conjunction with the drawings.

[0035] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Persons skilled in the art may make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0036] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0037] Please refer to Figures 1-3 As shown, this embodiment is an ejector for a fully enclosed vacuum toilet of a rail train, including:

[0038] A main body assembly, which includes an ejector body 10, an air outlet pipe 13 and a splicing flange 14;

[0039] The ejector body 10 and the air outlet pipe 13 are connected through the splicing flange 14. A baffle is hinged at the splicing flange 14 at one end of the air outlet pipe 13;

[0040] The ejector body 10 provides a gas injection channel, the air outlet pipe 13 provides a gas discharge channel, and the splicing flange 14 plays a connecting role;

[0041] An installation assembly, which includes a hoop 20, a connecting block 21, a spring column 22, a fixing plate 23 and a clamping post 24;

[0042] The hoop 20 is sleeved on the air outlet pipe 13 near the splicing flange 14 through bolts. The connecting block 21 is welded on both sides of the splicing flange 14. The spring column 22 is hinged at one end of the connecting block 21 away from the splicing flange 14. The fixing plate 23 is connected to the movable end of the spring column 22 through screws, and the clamping post 24 is connected to the other end of the fixing plate 23 through screws;

[0043] The hoop 20 plays a connecting role, the connecting block 21 plays a supporting role, the spring column 22 has a shrinking function, the fixing plate 23 plays a supporting role, and the clamping post 24 plays a connecting and limiting role;

[0044] There are two groups of clamping posts 24, which are clamped in the installation holes opened on the splicing flange 14;

[0045] The main body assembly further includes a J-shaped vacuum tube 11 and an air inlet pipe 12;

[0046] One end of the J-shaped vacuum tube 11 is welded inside the ejector body 10, and the other end penetrates through the ejector body 10 to the outside. The air inlet pipe 12 is opened at one end of the ejector body 10 away from the splicing flange 14;

[0047] The bottom of the J - type vacuum pipe 11 extends into the bottom of the ejector body 10 and reaches the plane of the splicing flange 14, and forms a narrow slit nozzle with the inner wall of the ejector body 10. Since the cross - sections of both the ejector body 10 and the J - type vacuum pipe 11 are circular rings, the formed narrow slit nozzle is also circular. The intake pipe 12 is connected to an air compressor to supply compressed air into the ejector body 10;

[0048] The main body assembly further includes a groove 15;

[0049] The groove 15 is opened at one end of the outlet pipe 13 close to the splicing flange 14 and protrudes from the outlet pipe 13;

[0050] The provided groove 15 provides space for the baffle at the splicing flange 14 to flip.

[0051] Working principle:

[0052] First, install the hoop 20 on the outlet pipe 13;

[0053] Then, hold the ejector body 10 with one hand and pull the fixed plate 23 with the other hand to drive the spring column 22 on the connecting block 21 to stretch. When the clamping column 24 moves to the rear end of the splicing flange 14 on the ejector body 10, rotate the spring column 22 to align the clamping column 24 with the mounting hole on the splicing flange 14;

[0054] Release the fixed plate 23. At this time, the spring column 22 contracts, driving the clamping column 24 to move into the mounting hole. Subsequently, install the clamping column 24 on the other side. After the installation is completed, the two splicing flanges 14 are tightly fitted together.

[0055] This step can quickly disassemble and assemble the ejector body 10, improving the installation and maintenance efficiency.

[0056] Please refer to Figures 4-5 As shown, based on the above - mentioned Embodiment 1, this embodiment further includes:

[0057] A limiting component, which includes an external thread 30 and a connecting ring 31;

[0058] The external thread 30 is opened at the fixed end of the spring column 22 and close to the movable end, and the connecting ring 31 is screwed onto the external thread 30;

[0059] The external thread 30 plays a connecting role, and the connecting ring 31 plays a supporting role;

[0060] The limiting component further includes an adjusting rod 32 and an arc - shaped limiting plate 33;

[0061] The adjusting rod 32 passes through and is screwed onto the upper end of the connecting ring 31, and the arc - shaped limiting plate 33 is rotatably connected to the lower end of the adjusting rod 32;

[0062] The adjusting rod 32 can achieve displacement, and the arc-shaped limiting plate 33 can achieve the clamping function.

[0063] Working principle:

[0064] First, rotate the connecting ring 31 onto the external thread at the fixed end of the spring post 22 at 30, and then assemble the other components in the installation assembly;

[0065] After the clamping post 24 is inserted into the installation hole of the splicing flange 14, rotate the adjusting rod 32 on the connecting ring 31 to drive the arc-shaped limiting plate 33 to move downward until the movable end of the spring post 22 is tightly pressed.

[0066] This step can prevent the movable end of the spring post 22 from shaking and make the connection of the splicing flange 14 more firm.

[0067] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0068] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ejector for a fully enclosed vacuum toilet tank on a railway train, characterized in that: include: A main body assembly, the main body assembly comprising an injector body (10), an air outlet pipe (13) and a splicing flange (14); The injector body (10) and the air outlet pipe (13) are connected via a splicing flange (14), and a baffle is hingedly connected to the splicing flange (14) at one end of the air outlet pipe (13); An installation assembly, the installation assembly comprising a clamp (20), a connection block (21), a spring column (22), a fixing plate (23) and a clamping column (24); The clamp (20) is sleeved on the outlet pipe (13) near the splicing flange (14) by means of bolts, the connecting block (21) is welded to both sides of the splicing flange (14), the spring column (22) is hinged to one end of the connecting block (21) away from the splicing flange (14), the fixing plate (23) is connected to the movable end of the spring column (22) by means of screws, and the clamping column (24) is connected to the other end of the fixing plate (23) by means of screws.

2. The ejector for a fully enclosed vacuum toilet collection tank for a railway train according to claim 1, characterized in that: There are two groups of clamping columns (24) which are clamped in mounting holes provided in the splicing flange (14).

3. The ejector for a fully enclosed vacuum toilet collection tank for a railway train according to claim 1, characterized in that: The main body assembly also includes a J-type vacuum tube (11) and an air intake pipe (12); One end of the J-shaped vacuum tube (11) is welded inside the ejector body (10), and the other end passes through the ejector body (10) and leads to the outside. The air inlet pipe (12) is opened at the end of the ejector body (10) away from the splicing flange (14).

4. The ejector for a fully enclosed vacuum toilet tank for a railway train according to claim 1, characterized in that: The main body assembly also includes a groove (15); The groove (15) is formed at one end of the air outlet pipe (13) close to the splicing flange (14) and protrudes out of the air outlet pipe (13).

5. The ejector for a fully enclosed vacuum toilet tank for a railway train according to claim 1, characterized in that: Also includes a limiter assembly; The limiting assembly comprises an external thread (30) and a connecting ring (31); The external thread (30) is formed at the fixed end of the spring column (22) and close to the movable end, and the connecting ring (31) is screwed onto the external thread (30).

6. The ejector for a fully enclosed vacuum toilet collection tank for a railway train according to claim 5, characterized in that: The limiting assembly further comprises an adjusting rod (32) and an arc-shaped limiting plate (33); The adjusting rod (32) passes through and is screwed to the upper end of the connecting ring (31), and the arc-shaped limiting plate (33) is rotatably connected to the lower end of the adjusting rod (32).

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