Device for observing air inlet cleanliness of electric inflating pump

Abstract

The utility model belongs to the technical field of commercial vehicle brake systems, and provides a device for observing air inlet cleanliness of an electric inflation pump, which comprises an observation box. An inlet and an outlet are formed in the side walls of the two sides of the observation box respectively, the inlet and the outlet are both communicated with an air inlet pipeline, the observation box is filled with folded filter paper, a transparent lens is arranged on the side wall of one side of the observation box, and a movable cover capable of being opened is arranged on the side wall of one side of the observation box. In the device, a worker can directly observe the air inlet cleanliness of the inflating pump through the transparent lens, the air filter does not need to be frequently disassembled for checking, and the observation result is efficient and accurate. And moreover, the reduction of the air cleanliness and the weakening of the impurity filtering effect of the air filter can be found in time, the filter element can be replaced immediately, and the air inlet cleanliness is improved. The inflating pump is always in an optimal working state, gas in a gas circuit is always clean gas, the valve body is protected from being damaged by impurities, and the braking performance is improved. In addition, the filter paper in the observation box can be replaced in time by opening the movable cover.

Description

Technical Field

[0001] The utility model belongs to the technical field of commercial vehicle brake systems, and in particular relates to a device for observing the cleanliness of air intake of an electric air pump. Background Art

[0002] Commercial vehicles mostly use pneumatic brakes, which have high requirements for compressed air. When the compressed gas pumped out contains a lot of dust and other debris, the dryer filtering function will quickly fail, making the cleanliness of the gas flowing into the pipeline worse. The impurities in the gas will affect the use of the brake valve, affect the braking effect, and even damage the valve.

[0003] As the power source of the pneumatic brake of electric vehicles, the air intake quality of the electric air pump directly affects the air quality in the air path, and the dirty air will affect the working efficiency and service life of the electric air pump. The existing device purifies the air sucked in by the air pump through the air filter, which can filter out the impurities in the gas and provide clean air for the air pump. However, after the car has been running for a certain period of time, the filter paper in the air filter is full of impurities, and the cleaning effect is significantly reduced, causing the air pump to inhale dirty air.

[0004] The traditional air filter takes in air from the air inlet, and the air is discharged from the air outlet after being filtered by the filter element. The air filter housing is black and opaque, and the color and shape of the internal filter element cannot be observed. Therefore, it is impossible to directly judge from the outside whether the air filter has lost its purification effect, and it cannot be guaranteed that the air pump inhales clean air. In the prior art, the staff often open the air filter housing by removing the locking bolts after the vehicle has been running for a period of time to see whether the filter element has lost its purification effect. This maintenance method is cumbersome to operate and is greatly affected by the subjective will of the staff. It is impossible to replace the air filter in time to ensure that the air pump inhales clean air. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a device for observing the cleanliness of the air intake of an electric air pump. The staff can directly observe the cleanliness of the filter paper through the transparent lens, thereby determining whether the air filter needs to be replaced. There is no need to frequently disassemble the air filter. It is simple, direct and effective.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for observing the cleanliness of the air intake of an electric air pump, comprising an observation box;

[0007] An inlet and an outlet are respectively arranged on the side walls on both sides of the observation box, and the inlet and the outlet are both connected to the air intake pipeline. The observation box is filled with folded filter paper, a transparent lens is arranged on one side wall of the observation box, and an openable movable cover is arranged on one side wall of the observation box.

[0008] Preferably, at least two tees are included, and the air intake pipeline includes a first pipe section, a second pipe section, and a third pipe section. The first port of the first tee is connected to the air filter outlet through the first pipe section, the second port of the first tee is connected to the inlet, the third port of the first tee is connected to the first port of the second tee through the second pipe section, the second port of the second tee is connected to the outlet, and the third port of the second tee is connected to the air inlet of the electric air pump through the third pipe section.

[0009] Preferably, the second port of the first tee is connected to the inlet via a hose and is clamped and sealed by a hoop.

[0010] Preferably, the second port of the second tee is connected to the outlet through a hose and is clamped and sealed by a hoop.

[0011] Preferably, the first pipe section, the second pipe section, and the third pipe section are all hoses.

[0012] Preferably, the connection between the first port of the first tee and the first pipe segment is clamped and sealed by a ring hoop, the connection between the third port of the first tee and the second pipe segment is clamped and sealed by a ring hoop, the connection between the first port of the second tee and the second pipe segment is clamped and sealed by a ring hoop, and the connection between the third port of the second tee and the third pipe segment is clamped and sealed by a ring hoop.

[0013] Preferably, a window compatible with the movable cover is opened on the side wall of the observation box, a lap platform is fixed on the inner wall of the window, a mounting seat is fixed on the side wall of the movable cover, a mounting groove compatible with the mounting seat is opened on the side wall of the observation box, the movable cover is embedded in the window, the movable cover is overlapped on the lap platform, the mounting seat is embedded in the mounting groove, and the mounting seat and the mounting groove are fixed by bolts.

[0014] Preferably, a sealing gasket is provided between the movable cover and the overlapping platform.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a device for observing the cleanliness of the air intake of an electric air pump, wherein the air in the air intake pipeline can pass through an observation box normally, and the filter paper can detect the cleanliness of the air after purification by the air filter. Therefore, the staff can directly observe and judge the cleanliness of the air intake of the air pump through a transparent lens, without the need to frequently disassemble the air filter for inspection, and the observation result is efficient and accurate. Moreover, if it is discovered in time that the air cleanliness has decreased and the air filter's effect of filtering impurities has weakened, the air filter element can be replaced immediately to improve the cleanliness of the air intake. The air pump is always in the best working state, the gas in the air circuit is always clean gas, the valve body is protected from damage by impurities, and the braking performance is improved. In addition, by opening the movable cover, the filter paper in the observation box can be replaced in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of an air filter in the prior art;

[0018] Figure 2 A schematic diagram of the top view of a device for observing the cleanliness of air intake of an electric air pump provided in an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of an observation box of a device for observing the cleanliness of air intake of an electric air pump provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the top view of the structure of an observation box of a device for observing the cleanliness of the air intake of an electric air pump provided in an embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the top view of the movable cover of a device for observing the cleanliness of the air intake of an electric air pump provided in an embodiment of the utility model;

[0022] Figure 6 A schematic cross-sectional structure diagram of an observation box of a device for observing the cleanliness of an electric air pump intake provided in an embodiment of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Observation box; 2. Air intake pipe; 3. Filter paper; 4. Transparent lens; 5. Movable cover; 6. Tee; 7. Air filter; 8. Electric air pump; 9. Window; 10. Lap table; 11. Mounting seat; 12. Mounting groove; 13. Sealing gasket; 14. Filter element; 201. First pipe section; 202. Second pipe section; 203. Third pipe section. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0026] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0027] Example 1

[0028] like Figure 1 As shown, the air filter 7 shell in the prior art is black and opaque, and the color and shape of the internal filter element 14 cannot be directly observed, so it is impossible to directly judge from the outside whether the air filter has lost its purification effect.

[0029] In order to solve the above problems, Figure 2-3 As shown, this embodiment provides a device for observing the cleanliness of air intake of an electric air pump, comprising an observation box 1;

[0030] An inlet and an outlet are respectively provided on the side walls on both sides of the observation box 1, and the inlet and the outlet are both connected to the air intake pipe 2, and the air intake pipe 2 is used to connect the air outlet of the air filter 7 and the air inlet of the electric air pump 8. The observation box 1 is filled with folded filter paper 3, and the filter paper 3 is made of the same material as the filter element 14 in the air filter 7. A transparent lens 4 is provided on one side wall of the observation box 1, and an openable movable cover 5 is provided on the top plate of the observation box 1.

[0031] In this embodiment, a branch is added to the air intake pipeline 2, and the observation box 1 is arranged on the branch, so that the gas can enter the observation box 1 from the branch, and flow out of the observation box 1 after passing through the filter paper 3. If the cleaning effect of the air filter 7 is good, the gas in the observation box 1 should not contain impurities, and the filter paper 3 will not absorb impurities. In this way, the staff can directly observe from the transparent lens 4 that the color state of the filter paper 3 and the like have not changed, thereby judging that the air filter 7 can play a purification effect, there is no need to replace the filter element 14, and the air intake cleanliness of the electric air pump 8 is good.

[0032] After the car has been running for a certain period of time, the filter element 14 of the air filter 7 is full of impurities, and the gas enters the observation box 1. The impurities will be absorbed by the filter paper 3. It can be observed from the transparent lens 4 that the color of the filter paper 3 becomes black and the shape changes. It can be judged that the air filter 7 has lost its purification effect and the air intake cleanliness of the electric air pump 8 has deteriorated. The filter element 14 should be replaced immediately.

[0033] In summary, the device for observing the cleanliness of the air intake of the electric air pump provided in this embodiment allows the staff to directly observe and determine the cleanliness of the air intake of the electric air pump 8 through the transparent lens 4, without the need for the staff to frequently disassemble the air filter 7 for inspection, and the observation result is more efficient and accurate. Moreover, if it is discovered in time that the air cleanliness has decreased and the effect of filtering impurities by the air filter 7 has weakened, the filter element 14 can be replaced immediately to improve the cleanliness of the air intake. The air pump is always in the best working state, and the gas in the intake pipe 2 is always clean gas, which protects the valve body from damage by impurities and improves the braking performance. In addition, by opening the movable cover 5, the filter paper 3 in the observation box 1 can be replaced in time.

[0034] The device for observing the cleanliness of the air intake of an electric air pump provided in this embodiment also includes two tees 6, and the air intake pipeline 2 includes a first pipe section 201, a second pipe section 202, and a third pipe section 203. The first port of the first tee 6 is connected to the air outlet of the air filter 7 through the first pipe section 201, the second port of the first tee 6 is connected to the inlet, the third port of the first tee 6 is connected to the first port of the second tee 6 through the second pipe section 202, the second port of the second tee 6 is connected to the outlet, and the third port of the second tee 6 is connected to the air intake of the electric air pump 8 through the third pipe section 203.

[0035] The second port of the first tee 6 is connected to the inlet through a hose and is clamped and sealed by a hoop. When installing, the two ends of the hose are respectively put on the second port of the first tee 6 and the inlet, and then the hoop is locked to complete the installation. The structure is simple and the installation is convenient.

[0036] The second port of the second tee 6 is connected to the outlet through a hose and is clamped and sealed by a hoop. Similarly, during installation, the two ends of the hose are respectively put on the second port of the second tee 6 and the outlet, and then the hoop is locked to complete the installation. The structure is simple and the installation is convenient.

[0037] The first pipe section 201, the second pipe section 202, and the third pipe section 203 are all hoses. The first port of the first tee 6 and the first pipe section 201 are connected by a ring hoop, the third port of the first tee 6 and the second pipe section 202 are connected by a ring hoop, the first port of the second tee 6 and the second pipe section 202 are connected by a ring hoop, and the third port of the second tee 6 and the third pipe section 203 are connected by a ring hoop.

[0038] Similarly, during installation, the end of the first pipe section 201 is sleeved on the first port of the first tee 6 and the ring hoop is locked. The two ends of the second pipe section 202 are sleeved on the third port of the first tee 6 and the first port of the second tee 6 respectively and the ring hoop is locked. The end of the third pipe section 203 is sleeved on the third port of the second tee 6 and the ring hoop is locked. In this way, it is very convenient to assemble or disassemble the branch.

[0039] Example 2

[0040] like Figure 4-6 As shown, on the basis of Example 1, a window 9 compatible with the movable cover 5 is opened on the top plate of the observation box 1, and an annular lap platform 10 is fixed on the inner wall of the window 9, and mounting seats 11 are fixed on the side walls on both sides of the movable cover 5. A mounting groove 12 compatible with the mounting seat 11 is also opened on the top plate of the observation box 1, and the movable cover 5 is embedded in the window 9, and the movable cover 5 is overlapped on the lap platform 10, and the mounting seat 11 is embedded in the mounting groove 12, and a through hole is penetrated on the mounting seat 11, and a screw hole compatible with the through hole is provided on the inner bottom surface of the mounting groove 12, and the mounting seat 11 and the mounting groove 12 are fixed by bolt locking.

[0041] During installation, the movable cover 5 is embedded in the window 9 so that the bottom end of the movable cover 5 overlaps the overlapping platform 10. At this time, the mounting seat 11 is just embedded in the mounting groove 12. The bolt is passed through the through hole and screwed into the screw hole, and the mounting seat 11 can be locked and fixed in the mounting groove 12, thereby fixing the movable cover 5. Conversely, during disassembly, the bolt is removed to remove the movable cover 5.

[0042] A sealing gasket 13 is provided between the movable cover 5 and the lap joint 10. The sealing gasket 13 can enhance the sealing performance of the movable cover 5 and prevent air leakage.

[0043] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0044] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0045] The above is only a preferred embodiment of the utility model, and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for observing the cleanliness of the air intake of an electric air pump, characterized in that: It includes an observation box (1); An inlet and an outlet are respectively provided on the side walls on both sides of the observation box (1), and both the inlet and the outlet are connected to the air intake pipeline (2). The observation box (1) is filled with folded filter paper (3). A transparent lens (4) is provided on one side wall of the observation box (1), and an openable movable cover (5) is provided on one side wall of the observation box (1).

2. A device for observing the cleanliness of the air intake of an electric air pump according to claim 1, characterized in that: It also includes at least two tees (6), the air intake pipeline (2) includes a first pipe section (201), a second pipe section (202), and a third pipe section (203), the first port of the first tee (6) is connected to the air outlet of the air filter (7) through the first pipe section (201), the second port of the first tee (6) is connected to the inlet, the third port of the first tee (6) is connected to the first port of the second tee (6) through the second pipe section (202), the second port of the second tee (6) is connected to the outlet, and the third port of the second tee (6) is connected to the air inlet of the electric air pump (8) through the third pipe section (203).

3. A device for observing the cleanliness of the air intake of an electric air pump according to claim 2, characterized in that: The second port of the first tee (6) is connected to the inlet through a hose and is clamped and sealed by a hoop.

4. The device for observing the cleanliness of the air intake of an electric air pump according to claim 2, characterized in that: The second port of the second tee (6) is connected to the outlet through a hose and is clamped and sealed by a hoop.

5. The device for observing the cleanliness of the air intake of an electric air pump according to claim 2, characterized in that: The first pipe section (201), the second pipe section (202), and the third pipe section (203) are all hoses.

6. The device for observing the cleanliness of the air intake of an electric air pump according to claim 5, characterized in that: The connection between the first port of the first tee (6) and the first pipe section (201) is sealed by a ring hoop clamping, the connection between the third port of the first tee (6) and the second pipe section (202) is sealed by a ring hoop clamping, the connection between the first port of the second tee (6) and the second pipe section (202) is sealed by a ring hoop clamping, and the connection between the third port of the second tee (6) and the third pipe section (203) is sealed by a ring hoop clamping.

7. The device for observing the cleanliness of the air intake of an electric air pump according to claim 1, characterized in that: The observation box (1) has a side wall provided with a window (9) adapted to the movable cover (5), an inner wall of the window (9) has a lap platform (10) fixed thereon, a mounting seat (11) fixed thereon, a side wall of the movable cover (5) has a mounting groove (12) adapted to the mounting seat (11), the movable cover (5) is embedded in the window (9), the movable cover (5) is lapped on the lap platform (10), the mounting seat (11) is embedded in the mounting groove (12), and the mounting seat (11) and the mounting groove (12) are fixed by bolts.

8. The device for observing the cleanliness of the air intake of an electric air pump according to claim 7, characterized in that: A sealing gasket (13) is provided between the movable cover (5) and the overlapping platform (10).

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