Closed switch device for suction tube of vacuum sweeper

Abstract

The utility model relates to a vacuum sweeper suction tube closed switch device, which belongs to the technical field of vacuum sweepers and comprises a suction tube, a tightness adjusting mechanism is arranged on the suction tube and comprises a partition plate fixedly mounted in the suction tube, a conical hole is formed in the lower surface of the partition plate, a straight through hole is formed in the upper surface of the partition plate, and a through hole is formed in the lower surface of the partition plate. A grating plate is movably installed on the inner side of the suction cylinder, a conical plunger and an adjusting threaded rod are fixedly installed on the lower surface of the grating plate, the adjusting threaded rod is rotatably installed on the lower surface of the grating plate and penetrates through the lower surface of the partition plate, and a limiting assembly is arranged between the grating plate and the suction cylinder. According to the closed opening and closing device for the suction tube of the vacuum sweeper, the sealing degree adjusting mechanism is arranged on the suction tube, the size of an opening in the suction tube can be adjusted according to the working scene of the vacuum sweeper during use, then the sealing degree of the suction tube can be adjusted, and it is guaranteed that the vacuum sweeper works on different occasions; and the dust collection vehicle can be prevented from sucking large sundries into the dust collection vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of dust suction vehicles, and particularly relates to a dust suction vehicle suction cylinder sealing switch device. Background Technique

[0002] A dust suction vehicle is a vehicle specially used for cleaning and dust suction, usually used for cleaning work in urban streets, public places, factory workshops, parking lots and other places. A dust suction vehicle is usually equipped with cleaning equipment such as a dust suction device, a dustbin, a water tank, a water spraying device, etc., which can effectively clean dust, garbage, fallen leaves and other sundries on the ground, and keep the environmental sanitation and beauty. The suction cylinder of a dust suction vehicle is an important component on the dust suction vehicle, usually used to absorb dust, garbage and sundries on the ground. The suction cylinder of a dust suction vehicle is usually a soft but strong tubular structure, one end is connected to the dust suction device of the dust suction vehicle, and the other end is used for dust suction and cleaning the ground.

[0003] Chinese Patent CN203729245U discloses a dust suction vehicle suction cylinder sealing switch device, which includes an upper suction cylinder, a sealing gasket, a lower suction cylinder, a switch switching plate with a rotating shaft, a rotating plate and a cylinder; the switch switching plate is clamped between the upper suction cylinder and the lower suction cylinder, and the upper suction cylinder, the sealing gasket and the lower suction cylinder are locked by bolts. The thickness of the sealing gasket is slightly greater than that of the switch switching plate, so that the switch switching plate can rotate flexibly in the sealed cavity; one end of the rotating plate is tightly sleeved on the rotating shaft, and the other end is connected to the cylinder joint through a pin shaft, so that the telescopic movement of the cylinder joint drives the rotating plate and drives the rotation of the switch switching plate through the rotating shaft, realizing the opening and closing of the suction cylinder; the upper suction cylinder is installed on the vehicle frame and communicated with the dust bin of the dust suction vehicle, and the lower suction cylinder is connected to the suction nozzle of the dust suction vehicle. By adopting this dust suction vehicle suction cylinder sealing switch device, the dust suction vehicle has multiple operation modes to choose from during operation, saves energy and reduces consumption, and does not reduce the suction force of the suction nozzle during the operation of the dust suction vehicle.

[0004] The above patent improves the disadvantages that the sealing performance at the opening edge of the existing suction cylinder is not good, there is an air leakage state, and the suction force of the suction cylinder during the operation of the dust suction vehicle is reduced, but this suction cylinder cannot adjust the sealing degree of the suction cylinder according to the needs of the cleaning work, which is not conducive to ensuring the cleaning effect of the dust suction vehicle in different occasions. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a dust suction vehicle suction cylinder sealing switch device, which has the advantage of being convenient to adjust the sealing degree, and solves the problem that the existing suction cylinder cannot adjust the sealing degree of the suction cylinder according to the needs of the cleaning work, which is not conducive to ensuring the cleaning effect of the dust suction vehicle in different occasions.

[0006] To achieve the above object, the utility model provides the following technical solution: a dust suction vehicle suction cylinder sealing switch device, including a suction cylinder, and a sealing degree adjusting mechanism is arranged on the suction cylinder;

[0007] The airtightness adjustment mechanism includes a partition fixedly installed inside the suction cylinder. A conical hole is provided on the lower surface of the partition, and a straight through hole is provided on the upper surface of the partition. A grille plate is movably installed inside the suction cylinder. A conical plunger is fixedly installed on the lower surface of the grille plate, and an adjustment threaded rod is rotatably installed on the lower surface of the grille plate and penetrates through to the lower surface of the partition. A limiting component is provided between the grille plate and the suction cylinder.

[0008] Further, a conical dust suction hopper is fixedly installed at the bottom of the suction cylinder, and the inner cavity of the conical dust suction hopper is communicated with the inner cavity of the suction cylinder.

[0009] Further, the inner cavity of the straight through hole is communicated with the inner cavity of the conical hole. The number of the straight through holes and the conical holes is multiple, and the multiple straight through holes and conical holes are evenly distributed on the surface of the partition.

[0010] Further, the limiting component includes a limiting groove provided on the surface of the inner cavity of the suction cylinder. A limiting block fixedly installed on the surface of the grille plate is inserted into the limiting groove, and the surface of the limiting block is in sliding contact with the inner surface of the limiting groove.

[0011] Further, a threaded hole is provided on the surface of the partition, and the adjustment threaded rod is threadedly connected to the threaded hole.

[0012] Further, two telescopic protective sleeves are fixedly installed on the surface of the partition, and the threaded hole is located inside the telescopic protective sleeve.

[0013] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0014] In this dust suction truck suction cylinder airtight switch device, by providing an airtightness adjustment mechanism on the suction cylinder, the opening size inside the suction cylinder can be adjusted according to the working vehicle scenario of the dust suction truck during use, and thus the airtightness of the suction cylinder can be adjusted, which is beneficial to ensuring the operation of the dust suction truck in different occasions and preventing the dust suction truck from sucking large-sized sundries into the interior of the dust suction truck, solving the problem that the suction cylinder in the prior art cannot adjust the airtightness of the suction cylinder according to the needs of the cleaning work, which is not conducive to ensuring the cleaning effect of the dust suction truck in different occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the inside of the suction cylinder of the structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the partition of the structure of the present utility model;

[0017] Figure 3 It is a schematic diagram of the grille plate of the structure of the present utility model.

[0018] In the figure: 1. Suction cylinder; 2. Partition board; 3. Conical hole; 4. Straight through hole; 5. Grille plate; 6. Conical plunger; 7. Adjusting screw rod; 8. Conical dust suction hopper; 9. Limit groove; 10. Limit block; 11. Threaded hole; 12. Telescopic protective sleeve. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 to 3 , a suction cylinder sealing switch device in this embodiment includes a suction cylinder 1. A conical dust suction hopper 8 is fixedly installed at the bottom of the suction cylinder 1. The inner cavity of the conical dust suction hopper 8 is communicated with the inner cavity of the suction cylinder 1. A sealing degree adjusting mechanism is provided on the suction cylinder 1. The sealing degree adjusting mechanism includes a partition board 2 fixedly installed inside the suction cylinder 1. A conical hole 3 is opened on the lower surface of the partition board 2. A straight through hole 4 is opened on the upper surface of the partition board 2. The inner cavity of the straight through hole 4 is communicated with the inner cavity of the conical hole 3. The number of the straight through holes 4 and the conical holes 3 is multiple. The multiple straight through holes 4 and the conical holes 3 are uniformly distributed on the surface of the partition board 2. A grille plate 5 is movably installed inside the suction cylinder 1. A conical plunger 6 is fixedly installed on the lower surface of the grille plate 5, and an adjusting screw rod 7 rotatably installed on the lower surface of the grille plate 5 and penetrating to the lower surface of the partition board 2. A threaded hole 11 is opened on the surface of the partition board 2. The adjusting screw rod 7 is threadedly connected into the threaded hole 11. Two telescopic protective sleeves 12 are fixedly installed on the surface of the partition board 2. The threaded hole 11 is located inside the telescopic protective sleeve 12. The telescopic protective sleeve 12 is beneficial to preventing dust from entering the threaded hole 11.

[0021] A limit component is provided between the grille plate 5 and the suction cylinder 1. The limit component includes a limit groove 9 opened on the inner cavity surface of the suction cylinder 1. A limit block 10 fixedly installed on the surface of the grille plate 5 is inserted into the limit groove 9. The surface of the limit block 10 is in sliding contact with the inner surface of the limit groove 9. Through the limit component, it is convenient to limit the grille plate 5.

[0022] It should be noted that in this embodiment, the conical plunger 6 is inserted into the straight through hole 4. The maximum diameter of the conical plunger 6 is adapted to the inner diameter of the straight through hole 4, and the minimum diameter of the conical plunger 6 is smaller than the inner diameter of the straight through hole 4.

[0023] The working principle of the above embodiment is as follows:

[0024] During use, by rotating and adjusting the threaded rod 7, the threaded rod 7 drives the grille plate 5 to move up and down inside the suction cylinder 1. Furthermore, the grille plate 5 can drive the tapered plunger 6 to move inside the straight through hole 4. When the tapered plunger 6 penetrates into the straight through hole 4, the gap between the outer surface of the tapered plunger 6 and the opening of the penetrated straight through hole 4 is small. When the tapered plunger 6 moves away from the straight through hole 4, the gap between the outer surface of the tapered plunger 6 and the opening of the penetrated straight through hole 4 is large.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust suction truck suction cylinder closed switch device, comprising a suction cylinder (1), characterized in that: A tightness adjustment mechanism is provided on the suction cylinder (1). The tightness adjustment mechanism includes a partition plate (2) fixedly installed inside the suction cylinder (1). A conical hole (3) is formed on the lower surface of the partition plate (2), and a straight through hole (4) is formed on the upper surface of the partition plate (2). A grille plate (5) is movably installed inside the suction cylinder (1). A conical plunger (6) is fixedly installed on the lower surface of the grille plate (5), and an adjustment threaded rod (7) is rotatably installed on the lower surface of the grille plate (5) and penetrates through to the lower surface of the partition plate (2). A limiting component is provided between the grille plate (5) and the suction cylinder (1).

2. The hermetic switch device for the suction cylinder of a vacuum cleaner according to claim 1, wherein: A conical suction hopper (8) is fixedly installed at the bottom of the suction cylinder (1), and the inner cavity of the conical suction hopper (8) is communicated with the inner cavity of the suction cylinder (1).

3. The hermetic switch device for the suction cylinder of a vacuum cleaner according to claim 1, wherein: The inner cavity of the straight through hole (4) is communicated with the inner cavity of the conical hole (3). The number of the straight through holes (4) and the conical holes (3) is multiple, and the multiple straight through holes (4) and the conical holes (3) are evenly distributed on the surface of the partition plate (2).

4. The airtight switch device for the suction cylinder of a vacuum cleaner according to claim 1, characterized in that: The limiting component includes a limiting groove (9) formed on the inner cavity surface of the suction cylinder (1). A limiting block (10) fixedly installed on the surface of the grille plate (5) is inserted into the limiting groove (9), and the surface of the limiting block (10) is in sliding contact with the inner surface of the limiting groove (9).

5. The airtight switch device for the suction cylinder of a vacuum cleaner according to claim 1, characterized in that: A threaded hole (11) is formed on the surface of the partition plate (2), and the adjustment threaded rod (7) is threadedly connected to the threaded hole (11).

6. The air suction cylinder closed switch device of a dust suction vehicle according to claim 5, characterized in that: Two telescopic protective sleeves (12) are fixedly installed on the surface of the partition plate (2), and the threaded hole (11) is located inside the telescopic protective sleeve (12).

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