Water driving air knife with adjustable opening

Abstract

The utility model relates to the technical field of water driving air knives, in particular to an opening-adjustable water driving air knife which comprises an air knife body, a first end cover and a second end cover, the first end cover and the second end cover are arranged at the two ends of the air knife body respectively and used for sealing, an air inlet is formed in the first end cover, and the air knife body comprises an air inlet cavity and an air outlet formed in the bottom end of the air inlet cavity. A plurality of through holes are formed in the two opposite side walls of the air outlet in the length direction in a penetrating mode, the two through holes are adjustably connected through fixing bolts and fixing nuts, the through holes are formed in the side walls of the two sides of the air outlet, and then the through holes are connected through the fixing bolts and the fixing nuts, so that opening gaps of all sections of the air outlet can be adjusted; and the air outlet uniformity is improved, later adjustment and maintenance are facilitated, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of water-repelling air knives, in particular to an opening-adjustable water-repelling air knife. Background Art

[0002] Air knives are widely used in the industrial field for water removal and dust removal, such as removing residual water on the surface of glass after cleaning in glass cleaning equipment, removing dust and moisture on steel plates, aluminum alloy profiles and other flat surfaces, removing moisture on the surface of beverage bottles, packaging cans and other bottles, removing impurities, dust, residual liquid and moisture on the outer packaging of products, and cleaning conveyor belts, etc. Under the condition of compressed air supply, the air knife body can perfectly meet these applications. After entering the air knife, it is blown out at high speed with a thin air sheet with a thickness of only 0.05 mm.

[0003] The existing water-repelling air knife is generally formed by bending a plate-like metal sheet, and its air outlet is then fixed by spot welding to fix the gap of the air outlet. The water-repelling air knife is a long strip structure. In actual use, it is impossible to accurately control the accuracy of the spot welding at each location, which can easily lead to inconsistent widths of the air outlet at different locations, affecting the uniformity of the air outlet and making it difficult to adjust later. Summary of the invention

[0004] The utility model aims to provide an opening adjustable water-repelling air knife to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an open adjustable water-repelling wind knife, comprising a wind knife body and a first end cover and a second end cover respectively arranged at both ends of the wind knife body for sealing, and an air inlet is arranged on the first end cover, the wind knife body comprises an air inlet cavity and an air outlet arranged at the bottom end of the air inlet cavity, a plurality of through holes are arranged on two opposite side walls of the air outlet along the length direction thereof, and the two through holes are adjustably connected by fixing bolts and fixing nuts.

[0006] Furthermore, connecting grooves are provided at four corners inside the air inlet cavity along its length direction, and the connecting grooves are fixedly connected to the first end cover and the second end cover by bolts.

[0007] Furthermore, the wind knife body is made of aluminum and is integrally formed.

[0008] Furthermore, the air outlet includes a first tapered section whose opening gradually decreases from top to bottom from the bottom of the air inlet cavity, a vertical section arranged at the bottom of the first tapered section, and a second tapered section arranged at the bottom of the vertical section, the second tapered section gradually decreases in size from the bottom of the vertical section downward, and the through hole is arranged on the vertical section.

[0009] Furthermore, the sizes of the first end cover and the second end cover are both larger than the cross-sectional size of the wind knife body.

[0010] Furthermore, the top ends of the first end cover and the second end cover are both integrally provided with mounting portions, and mounting holes are penetrated through the mounting portions.

[0011] Compared with the prior art, the utility model has the beneficial effects that the opening adjustable water-repelling wind knife is capable of adjusting the opening gaps of each section of the air outlet by arranging through holes on the side walls on both sides of the air outlet, and the through holes are connected by fixing bolts and fixing nuts, thereby improving the uniformity of the air outlet, facilitating later adjustment and maintenance, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the wind knife main body of the utility model.

[0015] In the figure: 1. wind knife body; 101. air inlet chamber; 102. air outlet; 1021. first necking section; 1022. vertical section; 1023. second necking section; 103. through hole; 2. first end cover; 201. air inlet; 3. second end cover; 4. connecting groove; 5. fixing bolt; 6. fixing nut; 7. mounting portion; 701. mounting hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. In the description of the utility model, it should be noted that the terms "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In order to make the terms "including" and any variations of them in the specification and claims of the utility model and the above-mentioned drawings, it is intended to cover non-exclusive inclusions.

[0017] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0018] See also Figure 1-3 The utility model provides an embodiment: an opening adjustable water-repelling wind knife, comprising a wind knife body 1 and a first end cover 2 and a second end cover 3 respectively arranged at both ends of the wind knife body 1 for sealing, and an air inlet 201 is arranged on the first end cover 2. When working, compressed air is introduced into the interior of the wind knife body 1 through the air inlet 201, and the compressed air is discharged through the air inlet 201. The wind knife body 1 comprises an air inlet cavity 101 and an air outlet 102 arranged at the bottom end of the air inlet cavity 101. The four corners inside the air inlet cavity 101 are all provided with connecting grooves 4 along the length direction thereof, and the connecting grooves 4 are connected to the first end cover 2 and the second end cover 3 through Bolt fixed connection, the air inlet chamber 101 is a rectangular parallelepiped structure, and the connecting groove 4 is arranged at the four corners inside the air inlet chamber 101 to improve the strength of the wind knife. In this embodiment, the cross section of the connecting groove 4 is a C-shaped structure, and the inner side walls at both ends thereof are processed with internal threads for threaded fixation with the first end cover 2 and the second end cover 3 by bolts. The top ends of the first end cover 2 and the second end cover 3 are integrally provided with a mounting portion 7, and the mounting portion 7 is penetrated with a mounting hole 701 for mounting and fixing the wind knife. The mounting hole 701 is a circular through hole, and there are two of them, and the mounting portion 7 is tilted downward, which is convenient for installation and fixation at the workplace;

[0019] A plurality of through holes 103 are provided on two opposite side walls of the air outlet 102 along the length direction thereof, and the two through holes 103 are adjustably connected by a fixing bolt 5 and a fixing nut 6. During assembly, after the fixing bolt 5 passes through the two through holes 103 of the wind knife body 1, the nut at one end of the fixing bolt 5 abuts against the outer wall of the wind knife body 1, and then the fixing nut 6 is screwed on the other end. By adjusting the position of the fixing nut 6 on the fixing bolt 5, the size of the opening of the air outlet 102 is adjusted;

[0020] The air outlet 102 includes a first tapered section 1021 whose opening gradually decreases from top to bottom from the bottom of the air inlet cavity 101, a vertical section 1022 arranged at the bottom of the first tapered section 1021, and a second tapered section 1023 arranged at the bottom of the vertical section 1022. The second tapered section 1023 gradually decreases in size from the bottom of the vertical section 1022 downward. The through hole 103 is arranged through the vertical section 1022. When installed, the contact area between the fixing bolt 5 and the fixing nut 6 and the air knife body 1 is increased, and the connection is more firm and reliable.

[0021] The sizes of the first end cover 2 and the second end cover 3 are both larger than the cross-sectional size of the wind knife body 1, so that the first end cover 2 and the second end cover 3 are always tightly fitted with both ends of the wind knife body 1 to ensure sealing;

[0022] The material of the wind knife body 1 is aluminum, and the wind knife body 1 is integrally formed, and the air outlet 102 is in an open state.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An opening-adjustable water-repelling air knife, comprising an air knife body (1) and a first end cover (2) and a second end cover (3) respectively arranged at two ends of the air knife body (1) for sealing, wherein the first end cover (2) is provided with an air inlet (201), characterized in that: The wind knife body (1) comprises an air inlet cavity (101) and an air outlet (102) arranged at the bottom end of the air inlet cavity (101); a plurality of through holes (103) are arranged on two opposite side walls of the air outlet (102) along the length direction thereof; two through holes (103) are adjustably connected via a fixing bolt (5) and a fixing nut (6).

2. The adjustable opening water-repelling air knife according to claim 1, characterized in that: Connecting grooves (4) are provided at the four corners inside the air inlet cavity (101) along its length direction, and the connecting grooves (4) are fixedly connected to the first end cover (2) and the second end cover (3) by bolts.

3. The adjustable opening water-repelling air knife according to claim 1, characterized in that: The material of the wind knife body (1) is aluminum, and the wind knife body (1) is integrally formed.

4. The adjustable opening water-repelling air knife according to claim 1, characterized in that: The air outlet (102) comprises a first tapered section (1021) whose opening gradually decreases from top to bottom at the bottom end of the air inlet cavity (101), a vertical section (1022) arranged at the bottom end of the first tapered section (1021), and a second tapered section (1023) arranged at the bottom end of the vertical section (1022), wherein the size of the second tapered section (1023) gradually decreases from the bottom end of the vertical section (1022) downward, and the through hole (103) is arranged through the vertical section (1022).

5. The adjustable opening water-repelling air knife according to claim 1, characterized in that: The dimensions of the first end cover (2) and the second end cover (3) are both larger than the cross-sectional dimensions of the wind knife body (1).

6. The adjustable opening water-repelling air knife according to claim 1, characterized in that: The top ends of the first end cover (2) and the second end cover (3) are both integrally provided with a mounting portion (7), and the mounting portions (7) are each provided with a mounting hole (701) extending therethrough.

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