Rotary spray gun assembly for dry ice cleaning machine

Abstract

The utility model discloses a rotary spray gun assembly for a dry ice cleaning machine, which comprises a handheld spray gun, a hose and an adjusting mechanism capable of bending the end part of the hose, the adjusting mechanism comprises a first adjusting set and a second adjusting set which are movably arranged on the periphery of the hose in a sleeving mode and can rotate independently, each of the first adjusting set and the second adjusting set comprises an adjusting knob and a sleeve piece which are linked with each other, and a bending sleeve frame movably arranged on the periphery of the hose in a sleeving mode is hinged to one sleeve piece. And the other sleeve piece is in meshing transmission with the bending sleeve frame through a bevel gear set. According to the rotary spray gun assembly for the dry ice cleaning machine, the hose is additionally arranged at the output end of the handheld spray gun, so that the situation that the hand of an operator needs to enter a dangerous area for operation is avoided, meanwhile, the hose is controlled to be bent through the rotary spray gun assembly, and the bending direction of the hose is adjusted so that the rotary spray gun assembly can adapt to different working environments.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment cleaning, in particular to a rotary spray gun assembly for a dry ice cleaning machine. Background Art

[0002] Dry ice cleaning machine is a kind of equipment that can use dry ice to clean and treat the surface of castings, molds, etc. After being sprayed by the dry ice cleaning machine, the dry ice will quickly evaporate into gas, without any chemical residue and pollution.

[0003] In the prior art, dry ice cleaning machines usually use a direct connection with the spray gun to control the direction and angle of dry ice spraying, which is suitable for spacious working environments. However, in some narrow working environments, the spray angle of the spray gun will be greatly limited. For example, when cleaning the mold on an injection molding machine, the space between the modules is relatively small, making it difficult to freely adjust the spray angle of dry ice. At the same time, the operator directly holds the spray gun and extends it between the modules to operate, which poses a great safety hazard. Utility Model Content

[0004] The utility model aims to provide a rotary spray gun assembly for a dry ice cleaning machine. A hose is added to the output end of a handheld spray gun to avoid the operator's hands from entering a dangerous area to perform operations. At the same time, the hose can be bent and the bending direction of the hose can be adjusted by the rotary spray gun assembly to adapt to different working environments.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a rotary spray gun assembly for a dry ice cleaning machine, comprising a handheld spray gun, the rotary spray gun assembly comprising a hose and an adjustment mechanism capable of bending the end of the hose;

[0006] The adjustment mechanism includes a first adjustment group and a second adjustment group which are movably mounted on the outer circumference of the hose and can rotate independently. The first adjustment group and the second adjustment group both include an adjustment knob and a kit which are linked to each other. A bending sleeve frame which is movably mounted on the outer circumference of the hose is hinged on one of the kits, and the other kit and the bending sleeve frame are meshed and transmitted through a bevel gear set.

[0007] In a preferred embodiment of the utility model, the adjusting knob in the first adjusting group is movably mounted on the outer periphery of the adjusting knob in the second adjusting group, and the sleeve on the first adjusting group is movably mounted on the outer periphery of the sleeve on the second adjusting group.

[0008] In a preferred embodiment of the utility model, connecting pipes are connected between the adjusting knob and the kit in the first adjusting group and between the adjusting knob and the kit in the second adjusting group, and the connecting pipe on the first adjusting group is sleeved on the outer periphery of the connecting pipe on the second adjusting group.

[0009] In a preferred embodiment of the present invention, a plurality of connecting rods are connected between the adjusting knob in the first adjusting group and the sleeve, and between the adjusting knob in the second adjusting group and the sleeve.

[0010] In a preferred embodiment of the utility model, a plurality of connecting rods between the same set of the kit and the adjusting knob are embedded in the inner walls of a plurality of supporting tubes, and each of the supporting tubes is sleeved on the outer circumference of the hose.

[0011] In a preferred embodiment of the utility model, the two groups of support tubes correspond to each other, and one group of support tubes is sleeved on the outer circumference of the other group of support tubes, and the two corresponding support tubes are rotatably connected;

[0012] An annular groove is arranged on the outer wall of the support tube disposed on the inner side, and a limiting bolt having one end capable of being embedded in the annular groove is threadedly connected to the support tube disposed on the outer side.

[0013] In a preferred embodiment of the utility model, a warning strip is arranged on the outer side of the support tube disposed on the outer side.

[0014] In a preferred embodiment of the utility model, the bending sleeve frame is sleeved on one end of the outer circumference of the hose and is in a circular ring shape.

[0015] The beneficial effects of the utility model are:

[0016] (1) By adding a hose to the output end of the handheld spray gun, the operator's hands are prevented from entering the dangerous area to perform operations. At the same time, the hose can be bent and the bending direction of the hose can be adjusted by rotating the spray gun assembly to adapt to different working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of a handheld spray gun and a rotating spray gun assembly in a preferred embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a handheld spray gun and a rotating spray gun assembly in a preferred embodiment of the utility model;

[0020] Figure 3 In the preferred embodiment of the utility model Figure 2A schematic diagram of the local enlarged structure at B in the middle;

[0021] Figure 4 In the preferred embodiment of the utility model Figure 2 A schematic diagram of the local enlarged structure at C in the middle;

[0022] Figure 5 It is a schematic cross-sectional view of the structure when the support tubes are combined and sleeved together in the preferred embodiment of the utility model;

[0023] Among them, 1. Handheld spray gun; 2. Hose; 3. Adjustment knob; 4. Kit; 5. Bending sleeve; 6. Bevel gear set; 7. Connecting pipe fittings; 8. Connecting rod; 9. Support pipe; 901. Annular groove; 902. Limit bolt; 10. Warning strip. DETAILED DESCRIPTION

[0024] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used 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. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances. Embodiment 1

[0026] like Figure 1-Figure 5 As shown, a rotary spray gun assembly for a dry ice cleaning machine includes a handheld spray gun 1, characterized in that: the rotary spray gun assembly includes a hose 2 and an adjustment mechanism capable of bending the end of the hose 2;

[0027] The adjustment mechanism includes a first adjustment group and a second adjustment group which are movably mounted on the outer periphery of the hose 2 and can rotate independently. The first adjustment group and the second adjustment group both include an adjustment knob 3 and a set 4 which are linked to each other. A bending set 5 which is movably mounted on the outer periphery of the hose 2 is hinged on one of the sets 4, and the other set 4 is meshed with the bending set 5 through a bevel gear set 6 for transmission.

[0028] Specifically, the hose 2 is connected to the output port of the handheld spray gun 1. When the adjusting knob 3 in the first adjusting group or the second adjusting group is twisted, the kit 4 linked thereto will also rotate accordingly, and the bevel gear set 6 includes two mutually meshing bevel gears, one of which is fixedly connected to a bending frame 5 hinged on one of the kits 4, and its rotation axis coincides with the rotation axis of the bending frame 5, and the other bevel gear is arranged on another kit 4 and is coaxially arranged with the kit 4. By twisting one of the adjusting knobs 3 that is provided with a bevel gear and linked with the corresponding kit 4, the bevel gear can be driven to rotate, that is, the bending frame 5 can be driven to rotate along its rotation axis. In the present technical solution, preferably, the adjusting knob 3, the kit 4 and the main body of the hose 2 are coaxially arranged, and the rotation axis of the bending frame 5 is perpendicular to the rotation axis of the adjusting knob 3 and the kit 4. Therefore, when the bending frame 5 rotates along its rotation axis, a section of the bending tube can be bent to achieve the effect of adjusting the spray angle. Meanwhile, in the present technical solution, another set 4 hinged with the bending sleeve 5 can drive the bending sleeve 5 to rotate 360° by twisting the adjusting knob 3 linked thereto. Therefore, by operating the rotating spray gun assembly in the present technical solution, when the position of the handheld spray gun 1 is kept fixed, multi-angle dry ice spraying can be achieved within a certain range. At the same time, by adding a hose 2 to the spray end of the handheld spray gun 1, the operator's limbs can be effectively prevented from extending into the dangerous area of ​​the equipment operation, further ensuring the operator's personal safety.

[0029] Further, in order to facilitate the use of the first adjustment group and the second adjustment group, as Figure 1 As shown, the adjusting knob 3 in the first adjusting group is movably mounted on the outer periphery of the adjusting knob 3 in the second adjusting group, and the sleeve 4 on the first adjusting group is movably mounted on the outer periphery of the sleeve 4 on the second adjusting group. There is an appropriate damping sense between the adjusting knobs 3 and the sleeves 4. When the adjusting knobs 3 and the sleeves 4 in the second adjusting group are twisted, the adjusting knobs 3 and the sleeves 4 in the first adjusting group will also rotate, so that the approximate bending direction of the bending sleeve 5 can be controlled conveniently through the second adjusting group.

[0030] In the present technical solution, preferably, the bending sleeve 5 is hinged on the sleeve 4 in the second adjustment group. When the hose 2 is bent by twisting the adjustment knob 3 in the first adjustment group, the operator needs to control the adjustment knob 3 in the second adjustment group with his fingers to prevent it from rotating.

[0031] Further, such as Figure 1 As shown, a connecting pipe 7 is connected between the adjusting knob 3 and the sleeve 4 in the first adjusting group and between the adjusting knob 3 and the sleeve 4 in the second adjusting group, and the connecting pipe 7 on the first adjusting group is sleeved on the outer periphery of the connecting pipe 7 on the second adjusting group. The connecting pipe 7 is made of a light material, such as a hard plastic pipe, an aluminum pipe, etc., to reduce the burden on operators. Embodiment 2

[0032] like Figure 2-Figure 5 As shown, compared with Example 1, as another embodiment of the present invention, a plurality of connecting rods 8 are connected between the adjusting knob 3 in the first adjusting group and the set 4, and between the adjusting knob 3 in the second adjusting group and the set 4. Using the connecting rod 8 instead of the connecting pipe 7 can further reduce the weight of the rotary spray gun assembly, making it more convenient for operators to use.

[0033] Furthermore, in order to prevent the connecting rod 8 from bending or twisting when following the rotation of the adjusting knob 3, Figure 2 , Figure 5 As shown, a plurality of connecting rods 8 between the same set of components 4 and the adjusting knob 3 are embedded in the inner walls of a plurality of supporting tubes 9 , and each supporting tube 9 is sleeved on the outer circumference of the hose 2 .

[0034] Further, such as Figure 5 As shown, in order to make the support tubes 9 further increase the overall strength of the connecting rod 8, the groups of support tubes 9 correspond to each other, and one group of support tubes 9 is sleeved on the outer periphery of another group of support tubes 9, and the two correspondingly arranged support tubes 9 are rotatably connected;

[0035] An annular groove 901 is provided on the outer wall of the support tube 9 placed on the inner side, and a limiting bolt 902 with one end which can be embedded in the annular groove 901 is threadedly connected to the support tube 9 placed on the outer side. One end of the limiting bolt 902 extends into the annular groove 901. When the support tube 9 placed on the outer side rotates alone, it can be restricted from rotating along a fixed trajectory, thereby prompting the support tubes 9 placed on the inner and outer sides to form a whole.

[0036] Furthermore, in order to facilitate the operator to understand the bending direction of the hose 2, as shown in FIG. Figure 2 As shown, a warning strip 10 is provided on the outside of the outer support tube 9, and the position of the warning strip 10 is on the same horizontal plane as the rotation axis of the bending sleeve 5. By observing the position of the warning strip 10, the position of the bending sleeve 5 can be clearly understood, so that the operator can bend the bending sleeve 5.

[0037] In the first and second embodiments, in order to reduce the influence of the bending frame 5 on the bending of the hose 2, as shown in FIG. Figure 3As shown, the bending sleeve 5 is annularly sleeved at one end of the outer circumference of the hose 2. During the bending process of the hose 2, the annular portion of the bending sleeve 5 sleeved on the hose 2 is only in linear contact with the hose 2, and the hose 2 can slide relative to the bending sleeve 5. Due to the small contact surface, the friction between the bending sleeve 5 and the hose 2 can also be greatly reduced.

[0038] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A rotary spray gun assembly for a dry ice cleaning machine, comprising a handheld spray gun (1), characterized in that: The rotary spray gun assembly comprises a hose (2) and an adjustment mechanism capable of bending the end of the hose (2); The adjustment mechanism comprises a first adjustment group and a second adjustment group which are movably sleeved on the outer circumference of the hose (2) and can rotate independently. The first adjustment group and the second adjustment group both comprise an adjustment knob (3) and a sleeve (4) which are linked to each other. A bending sleeve (5) which is movably sleeved on the outer circumference of the hose (2) is hingedly connected to one of the sleeves (4), and the other sleeve (4) and the bending sleeve (5) are meshed and transmitted via a bevel gear set (6).

2. The rotary spray gun assembly for dry ice cleaning machine according to claim 1, characterized in that: The adjusting knob (3) in the first adjusting group is movably mounted on the outer periphery of the adjusting knob (3) in the second adjusting group, and the sleeve (4) on the first adjusting group is movably mounted on the outer periphery of the sleeve (4) on the second adjusting group.

3. The rotary spray gun assembly for dry ice cleaning machine according to claim 2, characterized in that: A connecting pipe (7) is connected between the adjusting knob (3) and the sleeve (4) in the first adjusting group, and between the adjusting knob (3) and the sleeve (4) in the second adjusting group, and the connecting pipe (7) on the first adjusting group is sleeved on the outer circumference of the connecting pipe (7) on the second adjusting group.

4. The rotary spray gun assembly for dry ice cleaning machine according to claim 2, characterized in that: A plurality of connecting rods (8) are connected between the adjusting knob (3) and the sleeve (4) in the first adjusting group, and between the adjusting knob (3) and the sleeve (4) in the second adjusting group.

5. The rotary spray gun assembly for dry ice cleaning machine according to claim 4, characterized in that: The plurality of connecting rods (8) between the same set of the kit (4) and the adjusting knob (3) are all embedded in the inner walls of the plurality of support tubes (9), and each of the support tubes (9) is sleeved on the outer circumference of the hose (2).

6. The rotary spray gun assembly for dry ice cleaning machine according to claim 5, characterized in that: The two groups of support tubes (9) correspond to each other one by one, and one group of support tubes (9) is sleeved on the outer circumference of the other group of support tubes (9), and the two correspondingly arranged support tubes (9) are rotatably connected to each other; An annular groove (901) is provided on the outer wall of the support tube (9) disposed on the inner side, and a limiting bolt (902) having one end capable of being embedded in the annular groove (901) is threadedly connected to the support tube (9) disposed on the outer side.

7. The rotary spray gun assembly for a dry ice cleaning machine according to claim 6, characterized in that: A warning strip (10) is provided on the outer side of the support tube (9) disposed on the outer side.

8. The rotary spray gun assembly for a dry ice cleaning machine according to claim 1, characterized in that: The bending sleeve (5) is sleeved on one end of the outer circumference of the hose (2) and is in the shape of a circular ring.

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