Filtering device for sewage suction port of closed sewage transfer truck

Abstract

The utility model discloses a filtering device for a sewage suction port of a closed sewage transfer truck, which comprises a sewage suction port quick connector, a sewage suction port filtering baffle and a sewage suction port quick connector blanking cap sleeved at one end of the sewage suction port quick connector. The other end of the sewage suction opening quick connector is connected to a sewage suction pipeline of the closed sewage transfer truck in a screwed mode, the sewage suction opening filtering baffle is clamped in the sewage suction opening quick connector, and the outer diameter of the sewage suction opening filtering baffle is larger than the inner diameter of the sewage suction pipeline. The closed sewage transfer truck has the advantages that the phenomenon that a large amount of impurities are deposited at the bottom of the water conveying tank due to the fact that the closed sewage transfer truck sucks the impurities during sewage suction can be avoided with low cost, and sewage cleaning operation during maintenance is greatly facilitated; meanwhile, the impeller can be effectively protected from being damaged by large-particle impurities when the sewage suction pump sucks sewage, and the service life of the sewage suction pump is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of closed sewage transfer vehicles, in particular to a filtering device for a sewage suction port of a closed sewage transfer vehicle. Background Art

[0002] Due to special working conditions, the mouth of the tank for transporting sewage in a closed sewage transfer vehicle can only be opened to clean the sediment at the bottom of the tank when the vehicle is being repaired. When discharging sewage, the sewage can only be discharged by gravity. Therefore, when the closed sewage transfer vehicle is sucking sewage, large particles of impurities that are generally sucked into the tank along with the sewage will be deposited at the bottom of the tank. After a long period of accumulation, these large particles of impurities will become very difficult to clean when the vehicle is repaired; at the same time, these large particles of impurities will pass through the sewage suction pump during the process of being sucked into the tank, causing damage to the impeller of the sewage suction pump. Utility Model Content

[0003] The purpose of the utility model is to provide a filtering device for a sewage suction port of a closed sewage transfer vehicle, so as to solve the technical problems existing in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A filtering device for a sewage suction port of a closed sewage transfer vehicle comprises a sewage suction port quick connector, a sewage suction port filter baffle and a sewage suction port quick connector plugging cover, wherein the sewage suction port quick connector plugging cover is sleeved on one end of the sewage suction port quick connector, and the other end of the sewage suction port quick connector is screwed onto a sewage suction pipe of the closed sewage transfer vehicle, the sewage suction port filter baffle is clamped inside the sewage suction port quick connector, and the outer diameter of the sewage suction port filter baffle is larger than the inner diameter of the sewage suction pipe.

[0006] Furthermore, the sewage suction port filter baffle includes a circular mesh plate and a handle formed by bending a flat iron. The circular mesh plate can be movably clamped inside the sewage suction port quick connector and is located at the step formed by the inner wall of the sewage suction port quick connector and the sewage suction port of the sewage suction pipe. The handle formed by bending a flat iron is fixed on one side of the circular mesh plate close to the sewage suction port quick connector plug cover.

[0007] Furthermore, the sewage suction port quick connector plugging cover comprises a cover body and at least two rotatable clamping handles, the cover body is detachably mounted on one end of the sewage suction port quick connector away from the sewage suction pipe, and the at least two rotatable clamping handles are symmetrically arranged on the outer peripheral side of the cover body.

[0008] Furthermore, an inner wall of the sewage suction port quick connector close to one end of the sewage suction pipe is provided with an internal thread, and an outer wall of the sewage suction pipe close to one end of the sewage suction port quick connector is provided with an external thread, and the external thread matches the internal thread.

[0009] Furthermore, an annular clamping groove is provided on the outer wall of the sewage suction port quick connector close to one end of the sewage suction port quick connector plugging cover, and the annular clamping groove is clamped and matched with the rotatable clamping handle.

[0010] Compared with the prior art, the advantages of the utility model are as follows:

[0011] (1) It can avoid the closed sewage transfer vehicle from sucking in a large amount of impurities when sucking sewage, causing a large amount of sediment at the bottom of the water tank, which greatly facilitates the cleaning operation during maintenance;

[0012] (2) When sucking sewage, the impeller of the sewage suction pump can be effectively protected from being damaged by large particles of impurities, thereby increasing the service life of the sewage suction pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution in this embodiment, the following is a brief introduction to the drawings required for use in the description of the embodiment. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a front view of the filter device used for the sewage suction port of a closed sewage transfer vehicle of the utility model;

[0015] Figure 2 It is a cross-sectional view of the filter device used for the sewage suction port of a closed sewage transfer vehicle of the utility model;

[0016] Figure 3 is based on Figure 2 Exploded diagram of

[0017] Figure 4 It is an exploded view of the filter device of the utility model used for the sewage suction port of the closed sewage transfer vehicle;

[0018] Explanation of the reference numerals: 1. quick connector for sewage suction port; 11. internal thread; 12. annular groove; 2. filter baffle for sewage suction port; 21. circular mesh plate; 22. handle; 3. quick connector plugging cover for sewage suction port; 31. cover body; 32. rotatable handle; 4. sewage suction pipe; 41. external thread. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following further describes how the present invention is implemented in conjunction with the accompanying drawings and specific implementation methods.

[0020] See also Figures 1 to 4The utility model provides a filtering device for a sewage suction port of a closed sewage transfer vehicle, comprising a sewage suction port quick connector 1, a sewage suction port filter baffle 2 and a sewage suction port quick connector plugging cover 3, wherein the sewage suction port quick connector plugging cover 3 is sleeved on one end of the sewage suction port quick connector 1, and the other end of the sewage suction port quick connector 1 is screwed on the sewage suction pipe 4 of the closed sewage transfer vehicle, the sewage suction port filter baffle 2 is clamped inside the sewage suction port quick connector 1, and the outer diameter of the sewage suction port filter baffle 2 is larger than the inner diameter of the sewage suction pipe 4, which can prevent the sewage suction port filter baffle from being sucked into the sewage suction pump when the closed sewage transfer vehicle is sucking sewage.

[0021] Specifically, as a preferred example of the present invention: Figure 2 and Figure 3 The sewage suction port filter baffle 2 includes a circular mesh plate 21 and a handle 22 formed by bending a flat iron. When assembled and used, the circular mesh plate 21 can be movably clamped inside the sewage suction port quick connector 1 and is located at the step formed by the inner wall of the sewage suction port quick connector 1 and the sewage suction port of the sewage suction pipe 4. The handle 22 formed by bending a flat iron is fixedly arranged on one side of the circular mesh plate 21 close to the sewage suction port quick connector plug cover 3. Among them, the function of the circular mesh plate 21 is to block the large particles of impurities in the sewage from being sucked into the tank of the closed sewage transfer vehicle when the closed sewage transfer vehicle is performing sewage suction operations, and to prevent the large particles of impurities sucked into the tank from being deposited at the bottom of the tank. After a long period of accumulation, it is difficult to clean when the vehicle is inspected and repaired; the handle 22 formed by bending flat iron is used to facilitate the installation and removal of the sewage suction port filter baffle 2, that is, to facilitate the removal of the sewage suction port filter baffle 2 from the sewage suction port quick connector 1 for cleaning, and to facilitate the replacement of the cleaned sewage suction port filter baffle 2 into the sewage suction port quick connector 1 for subsequent sewage filtration and recycling.

[0022] Specifically, as a preferred example of the present invention: Figure 2 and Figure 3 The sewage suction port quick connector plug cover 3 includes a cover body 31 and two rotatable clamping handles 32, wherein the cover body 31 is detachably sleeved on the end of the sewage suction port quick connector 1 away from the sewage suction pipe 4, and the two rotatable clamping handles 32 are symmetrically arranged on the outer peripheral side of the cover body 31; the function of the rotatable clamping handle 32 is to clamp the cover body 31 and the sewage suction port quick connector 1 together. The number of the rotatable clamping handles 32 can be two or more according to actual needs; the legend only shows an embodiment with two.

[0023] Specifically, as a preferred example of the present invention: Figure 3The inner wall of the sewage suction port quick connector 1 near the sewage suction pipe 4 is provided with an internal thread 11, and the outer wall of the sewage suction pipe 4 near the sewage suction port quick connector 1 is provided with an external thread 41, and the external thread 41 matches the internal thread 11. During assembly, the end of the sewage suction pipe 4 near the sewage suction port quick connector 1 is threadedly connected with the internal thread 11 on the end of the sewage suction port quick connector 1 near the sewage suction pipe 4 through the external thread 41 thereon.

[0024] Specifically, as a preferred example of the present invention: Figure 3 An annular groove 12 is provided on the outer wall of the sewage suction port quick connector 1 near one end of the sewage suction port quick connector plugging cover 3, and the annular groove 12 corresponds to the rotatable clamping handle 32 for clamping cooperation.

[0025] The working principle of the filtering device for the sewage suction port of a closed sewage transfer vehicle provided by the utility model is as follows:

[0026] When in use, first remove the sewage suction port quick connector plugging cover 3 from the sewage suction port quick connector 1, then connect the external docking pipe to the sewage suction port quick connector 1, and then start the sewage suction pump. The sewage to be transferred from the outside is sucked into the tank body of the closed sewage transfer vehicle through the external docking pipe, the sewage suction port quick connector 1 and the sewage suction pipe 4 in sequence. In the sewage suction process, large particles of impurities mixed in the sewage are filtered through the sewage suction port filter baffle 2 installed in the sewage suction port quick connector 1, so that the large particles of impurities mixed in the sewage are blocked at the sewage suction port by the sewage suction port filter baffle 2. This can effectively protect the sewage suction pump on the one hand, and prevent large particles of impurities from being deposited on the bottom of the tank of the closed sewage transfer vehicle on the other hand, avoiding the problem of difficulty in cleaning during maintenance. After the sewage is sucked, first disconnect the external docking pipe connected to the sewage suction port quick connector 1, and then take out the sewage suction port filter baffle 2 from the sewage suction port quick connector 1. When taking out the sewage suction port filter baffle 2, the large particles of impurities blocked at the sewage suction port will also be brought out together. This can reduce the sediment in the tank body of the closed sewage transfer vehicle, which is convenient for the later inspection and maintenance of the vehicle. After the sewage suction port filter baffle 2 is taken out, first rinse the sewage suction port filter baffle 2 with clean water. After rinsing, put the cleaned sewage suction port filter baffle 2 into the sewage suction port quick connector 1, and finally put the sewage suction port quick connector plugging cover 3 back on the sewage suction port quick connector 1 to close the sewage suction port quick connector 1. At this time, the sewage transfer and transportation can be started.

[0027] Finally, it should be noted that the above description is only an embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the present utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A filtering device for a closed sewage transfer vehicle suction port, characterized in that: The utility model comprises a sewage suction port quick connector (1), a sewage suction port filter baffle (2) and a sewage suction port quick connector plugging cover (3), wherein the sewage suction port quick connector plugging cover (3) is sleeved on one end of the sewage suction port quick connector (1), and the other end of the sewage suction port quick connector (1) is screwed onto a sewage suction pipe (4) of a closed sewage transfer vehicle, and the sewage suction port filter baffle (2) is clamped inside the sewage suction port quick connector (1), and the outer diameter of the sewage suction port filter baffle (2) is greater than the inner diameter of the sewage suction pipe (4).

2. The filtering device for the sewage suction port of a closed sewage transfer vehicle according to claim 1 is characterized in that: The sewage suction port filter baffle (2) comprises a circular mesh plate (21) and a handle (22) formed by bending a flat iron. The circular mesh plate (21) is movably clamped inside the sewage suction port quick connector (1) and is located at a step formed by the inner wall of the sewage suction port quick connector (1) and the sewage suction port of the sewage suction pipe (4). The handle (22) formed by bending a flat iron is fixedly arranged on one side of the circular mesh plate (21) close to the sewage suction port quick connector plug cover (3).

3. The filtering device for the sewage suction port of a closed sewage transfer vehicle according to claim 1 is characterized in that: The sewage suction port quick connector plug cover (3) comprises a cover body (31) and at least two rotatable clamping handles (32); the cover body (31) is detachably sleeved on an end of the sewage suction port quick connector (1) away from the sewage suction pipe (4); and the at least two rotatable clamping handles (32) are symmetrically arranged on the outer peripheral side of the cover body (31).

4. The filtering device for the sewage suction port of a closed sewage transfer vehicle according to claim 1 is characterized in that: An internal thread (11) is provided on the inner wall of the sewage suction port quick connector (1) close to one end of the sewage suction pipe (4), and an external thread (41) is provided on the outer wall of the sewage suction pipe (4) close to one end of the sewage suction port quick connector (1), and the external thread (41) matches the internal thread (11).

5. The filtering device for the sewage suction port of a closed sewage transfer vehicle according to claim 3 is characterized in that: An annular clamping groove (12) is provided on the outer wall of the sewage suction port quick connector (1) close to one end of the sewage suction port quick connector plugging cover (3), and the annular clamping groove (12) is clamped and matched with the rotatable clamping handle (32).

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