Sewage suction protection mechanism

Abstract

The utility model discloses a dirt suction protection mechanism which comprises a cage body, a floating ball, a baffle box and a baffle plate, the cage body is cylindrical, the floating ball is arranged in the cage body, the floating ball can float up and down in the cage body, the floating ball is used for opening and closing an annular space at the top of the cage body, and the baffle box is arranged in the cage body. One side of the baffle box is communicated with one side of the top of the cage body, the multiple baffle plates are all located in the baffle box and form an S-shaped channel, and the baffle plates are used for blocking small dirt. A plurality of layers of baffle plates are arranged in the baffle box of the device and can also be used as a second barrier for blocking dirt, so that fine dirt is blocked in the barrier and is prevented from entering the pump body, and the service life of the pump body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a dirt suction protection mechanism. Background Art

[0002] The sewage suction truck is a new type of sanitation vehicle that collects, transfers, cleans and transports sludge and sewage to avoid secondary pollution. The sewage suction truck can self-prime and self-drain, has a fast working speed, a large capacity, and is easy to transport. It is suitable for collecting and transporting liquid substances such as feces, mud, and crude oil. The sewage suction truck generally uses a sewage suction truck vacuum pump with strong suction power and long suction range. When the storage tank of the sewage suction truck is full of sewage, the sewage is very likely to be sucked into the vacuum pump, causing damage to the pump body, so it is necessary to set a protection device between the vacuum pump and the storage tank, such as a vacuum pump protection device for a sewage suction purification vehicle disclosed in patent publication number CN215161284U. The device has a float box, and a float is arranged in the float box. At the same time, the two ends of the float box are connected to the pump body and the tank body through pipes. When the tank is full of sewage, the sewage enters the float box, lifts the float, and blocks the pipeline between the float and the pump body, thereby preventing the sewage from entering the pump body and ensuring the normal operation of the vacuum pump;

[0003] However, when the above-mentioned protection device is operated, it is necessary to fill the storage tank with dirt and overflow, and enter the float box through the overflow part, so that the float blocks the pump body pipeline. Due to the limited space of the float box, dirt will splash after entering the float box, and there is no blocking protection structure between the float box and the pump body. Relatively small dirt will still enter the pump body, thereby affecting the operation of the pump body and reducing the service life of the pump body. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies and propose a dirt suction protection mechanism to solve the technical problem in the prior art that relatively small dirt enters the pump body, thereby reducing the service life of the pump body.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a dirt suction protection mechanism, comprising a cage body, a float, a baffle box and a baffle plate, the cage body is cylindrical, the float ball is arranged in the cage body, the float ball can float up and down in the cage body, the float ball is used to open and close the annular space at the top of the cage body, one side of the baffle box is connected with one side of the top of the cage body, a plurality of baffle plates are provided, the plurality of baffle plates are all located in the baffle box and form an S-shaped channel, and the baffle plates are used to block fine dirt.

[0007] In some embodiments, the cage body includes a plurality of support rods, a top ring and a bottom ring, the plurality of support rods are arranged parallel to each other and distributed in a ring shape, the bottom of the top ring is fixedly connected to the top ends of the plurality of support rods, the top of the bottom ring is fixedly connected to the bottom ends of the plurality of support rods, and a pipe is provided at the top of the top ring, and the pipe is used to connect the cage body and the deflector box.

[0008] In some embodiments, a fastening screw is provided on the outer side of the top ring, and the fastening screw is used to connect with the storage tank.

[0009] In some embodiments, a bellows is provided on the inner side of the bottom of the top ring, and the bottom of the bellows is matched with the float.

[0010] In some embodiments, the float is spherical and is located between a plurality of the support rods. The diameter of the float is larger than the inner ring diameters of the top ring and the bottom ring.

[0011] In some embodiments, connecting rings are provided on opposite sides of the float, and the two connecting rings are respectively slidably mounted on the outside of the two opposite support rods.

[0012] In some embodiments, a switch is provided between the inner wall of the end where the pipe is connected to the top ring.

[0013] In some embodiments, a top rod is fixedly provided on the top of the float, and the top rod is adapted to the switch.

[0014] In some embodiments, the baffle box is rectangular, and a plurality of the baffles are divided into two groups, both groups of the baffles are perpendicular to the top inner wall of the baffle box, and the two groups of the baffles are distributed at intervals, the top of one group of the baffles is fixedly connected to the top inner wall of the baffle box, and the bottom of the other group of the baffles is fixedly connected to the bottom inner wall of the baffle box.

[0015] In some embodiments, a side of the deflector box away from the cage body is communicated with the pump body.

[0016] Compared with the prior art, the utility model provides a dirt suction protection mechanism, which achieves the purpose of blocking fine dirt by arranging a cage, a float, a baffle box and a baffle plate; during specific operation, the cage is placed in a storage tank, and when the medium in the storage tank gradually increases, the water level rises, causing the float to rise with the water level until the float closes the passage between the cage and the baffle box, thereby preventing the dirt medium from damaging the pump body; further, a multi-layer baffle plate is arranged in the baffle box, which can also serve as a second checkpoint for blocking dirt, blocking fine dirt here to prevent it from entering the pump body, thereby ensuring the service life of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of a dirt suction protection mechanism provided by an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the middle cage structure;

[0019] Figure 3 yes Figure 1 Schematic diagram of the side cross-sectional structure.

[0020] Explanation of the reference numerals: 100, cage; 110, support rod; 120, top ring; 121, switch; 130, bottom ring; 140, pipeline; 150, fastening screw; 160, bellows; 200, float; 210, connecting ring; 220, top rod; 300, baffle box; 400, baffle plate; 500, storage tank; 600, pump body. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] In order to solve the technical problem of high work intensity, the utility model provides a dirt suction protection mechanism, which can achieve the purpose of blocking fine dirt.

[0023] It should be noted that the sewage suction protection mechanism described in the utility model is used for but not limited to the field of sewage truck vacuum pumps, etc. For the convenience of explanation, in the utility model, only an example of a sewage suction protection mechanism applied to the field of sewage truck vacuum pumps is used for explanation, and the principle of applying a sewage suction protection mechanism to other types of equipment is essentially the same as the principle applied to the field of sewage truck vacuum pumps, which will not be repeated here.

[0024] See also Figure 1-3 ,in Figure 1 The structural schematic diagram of a dirt suction protection mechanism in an embodiment of the utility model, a dirt suction protection mechanism comprises a cage body 100, a float 200, a baffle box 300 and a baffle plate 400, the cage body 100 is cylindrical, the float 200 is slidably arranged in the cage body 100, the float 200 can float up and down in the cage body 100, the float 200 is used to open and close the annular space at the top of the cage body 100, one side of the baffle box 300 is connected to one side of the top of the cage body 100, a plurality of baffle plates 400 are provided, and the plurality of baffle plates 400 are all located in the baffle box 300 and form an S-shaped channel, and the baffle plates 400 are used to block fine dirt;

[0025] In this embodiment, the cage 100 is placed in the storage tank 500 (see Figure 1When the medium in the storage tank 500 gradually increases, the water level rises, causing the float 200 to rise with the water level until the float 200 closes the passage between the cage 100 and the baffle box 300, thereby preventing the dirty medium from damaging the pump body 600 (see Figure 1 In the middle pump body 600, the same below); further, a multi-layer baffle plate 400 is arranged in the baffle box 300, which can also serve as a second barrier to block dirt, blocking fine dirt here to prevent it from entering the pump body 600, thereby ensuring the service life of the pump body 600.

[0026] In one embodiment, see Figure 2 - Figure 3 The cage body 100 includes a plurality of support rods 110, a top ring 120 and a bottom ring 130. The plurality of support rods 110 are arranged parallel to each other and are distributed in a ring shape. The bottom of the top ring 120 is fixedly connected to the top ends of the plurality of support rods 110. The top of the bottom ring 130 is fixedly connected to the bottom ends of the plurality of support rods 110. A pipe 140 is provided at the top of the top ring 120. The pipe 140 is used to connect the cage body 100 and the baffle box 300.

[0027] In this embodiment, the dragon frame formed by a plurality of support rods 110 can not only block large-volume dirt, but also limit the moving trajectory of the floating ball 200.

[0028] In one embodiment, see Figure 1 The outer side of the top ring 120 is provided with a fastening screw 150, and the fastening screw 150 is used to connect with the storage tank 500;

[0029] In this embodiment, the detachable connection can facilitate maintenance and loading and unloading.

[0030] In one embodiment, see Figure 3 A bellows 160 is provided on the inner side of the bottom of the top ring 120 , and the bottom of the bellows 160 is matched with the float 200 .

[0031] In this embodiment, the bellows 160 can improve the tightness of the connection between the float 200 and the top ring 120 .

[0032] In one embodiment, see Figure 2 - Figure 3 The float 200 is spherical and is located between a plurality of support rods 110. The diameter of the float 200 is larger than the inner diameter of the top ring 120 and the bottom ring 130. Connecting rings 210 are provided on opposite sides of the float 200. The two connecting rings 210 are respectively slidably sleeved on the outside of the two opposite support rods 110. A switch 121 is provided between the inner wall of the end where the pipe 140 is connected to the top ring 120. A top rod 220 is fixedly provided on the top of the float 200, and the top rod 220 is adapted to the switch 121.

[0033] The pump body 600 is disposed on the side of the baffle box 300 away from the cage body 100.

[0034] In this embodiment, the switch 121 is electrically connected to the power supply device, and the float 200 can move vertically upward along the axis of the support rod 110 through the connecting ring 210, and ensure that the push rod 220 on the float 200 can accurately push open the switch 121. The switch 121 can stop the power supply device from supplying power to the power supply pump body 600, so that the storage tank stops sucking dirt;

[0035] Furthermore, the switch 121 only provides a power-off function and does not affect an external power-off function.

[0036] In one embodiment, see Figure 1 - Figure 3 The baffle box 300 is rectangular, and a plurality of baffle plates 400 are divided into two groups. The two groups of baffle plates 400 are perpendicular to the top inner wall of the baffle box 300, and the two groups of baffle plates 400 are distributed at intervals. The top of one group of baffle plates 400 is fixedly connected to the top inner wall of the baffle box 300, and the bottom of the other group of baffle plates 400 is fixedly connected to the bottom inner wall of the baffle box 300.

[0037] In this embodiment, two groups of baffles 400 are respectively connected to the top inner wall and the bottom inner wall of the baffle box 300, so that an "S"-shaped channel is formed between the baffles 400. At the same time, air holes are opened on the baffles 400, which neither affect the passage of air flow nor block the invasion of dirt.

[0038] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the utility model is described in detail: the cage body 100 is placed in the storage tank 500, and the pump body 600 is started. The pump body 600 makes the storage tank 500 vacuum through the pipeline 140 to absorb dirt. When the medium in the storage tank 500 gradually increases, the water level rises, so that the float 200 rises with the water level, and the float 200 is slidably connected to the outside of the support rod 110 through the connecting ring 210, so that the top rod 220 on the top of the float 200 is aligned with the switch 121. After the float 200 closes the passage between the cage body 100 and the baffle box 300, the top rod 220 also separates and cuts off the power to the switch 121, thereby preventing the dirt medium from continuing to enter and damaging the pump body 600; further, a multi-layer baffle plate 400 is arranged in the baffle box 300, which can also serve as a second checkpoint to block dirt, blocking fine dirt here to prevent it from entering the pump body 600, thereby ensuring the service life of the pump body 600.

[0039] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A dirt suction protection mechanism, characterized in that: include: A cage body, wherein the cage body is cylindrical; A floating ball, the floating ball is arranged in the cage body, the floating ball can float up and down in the cage body, and the floating ball is used to open and close the annular space at the top of the cage body; A baffle box, one side of which is connected to one side of the top of the cage body; Baffles, wherein a plurality of baffles are provided, and the plurality of baffles are all located in the baffle box and form an S-shaped channel, and the baffles are used to block fine dirt.

2. A dirt suction protection mechanism according to claim 1, characterized in that: The cage body includes a plurality of support rods, a top ring and a bottom ring. The plurality of support rods are arranged parallel to each other and distributed in a ring shape. The bottom of the top ring is fixedly connected to the top ends of the plurality of support rods. The top of the bottom ring is fixedly connected to the bottom ends of the plurality of support rods. A pipe is provided at the top of the top ring, and the pipe is used to connect the cage body and the deflector box.

3. A dirt suction protection mechanism according to claim 2, characterized in that: A fastening screw is arranged on the outer side of the top ring, and the fastening screw is used to install the top ring.

4. A dirt suction protection mechanism according to claim 2, characterized in that: A bellows is arranged on the inner side of the bottom of the top ring, and the bottom of the bellows is matched with the floating ball.

5. A dirt suction protection mechanism according to claim 2, characterized in that: The floating ball is spherical and is located between a plurality of the support rods. The diameter of the floating ball is greater than the inner ring diameters of the top ring and the bottom ring.

6. A dirt suction protection mechanism according to claim 2, characterized in that: The two opposite sides of the floating ball are provided with connecting rings, and the two connecting rings are respectively slidably sleeved on the outside of the two opposite supporting rods.

7. A dirt suction protection mechanism according to claim 6, characterized in that: A switch is arranged between the inner wall of the end where the pipeline is connected to the top ring.

8. A dirt suction protection mechanism according to claim 7, characterized in that: A top rod is fixedly arranged on the top of the float, and the top rod is adapted to the switch.

9. A dirt suction protection mechanism according to claim 1, characterized in that: The baffle box is rectangular, and the plurality of baffles are divided into two groups. The two groups of baffles are perpendicular to the top inner wall of the baffle box, and the two groups of baffles are distributed at intervals. The top of one group of baffles is fixedly connected to the top inner wall of the baffle box, and the bottom of the other group of baffles is fixedly connected to the bottom inner wall of the baffle box.

10. A dirt suction protection mechanism according to claim 1, characterized in that: The side of the baffle box away from the cage body is communicated with the pump body.

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