Blowing gun

Abstract

The utility model relates to a blowing gun. The blowing gun comprises a gun body, an adapter, a blowing pipe and an anti-falling unit, the adapter comprises a first end part and a second end part which are internally communicated with each other, and the first end part is assembled on the gun body and is communicated with the interior of the gun body; the air blowing pipe penetrates through the adapter and extends out of the second end in a protruding mode. The air blowing pipe comprises an assembling section located in the adapter. The anti-disengaging unit is arranged on the assembling section and used for preventing the air blowing pipe from disengaging from the second end. The combination stability of the air blowing pipe and the adapter can be improved, and the air blowing pipe is effectively prevented from being separated from the adapter in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blowing device, in particular to a blowing gun. BACKGROUND

[0002] The blowing gun is a tool for cleaning by high pressure airflow in cooperation with an air compressor, which is commonly used in automobile maintenance, electronic factory, mechanical processing and other fields. The high pressure airflow can quickly remove dust, machining dust and other small impurities attached to the surface of the object. The structure of the blowing gun usually includes a gun body and a blowing pipe connected in communication. The strength of the airflow can be controlled by pressing the switch or the board machine, which is quite convenient and intuitive in use.

[0003] However, the blowing pipe is easily separated from the gun body due to the impact of high pressure airflow, which leads to inconvenient use, interrupted operation and low efficiency. Therefore, it is necessary to provide a novel and advanced blowing gun to solve the above problems. SUMMARY

[0004] The main purpose of the utility model is to provide a blowing gun that can improve the combination stability of the blowing pipe and the adapter, effectively preventing the blowing pipe from separating from the adapter during use.

[0005] To achieve the above purpose, the utility model provides a blowing gun, which includes a gun body, an adapter, a blowing pipe and an anti-separation unit. The adapter includes a first end portion and a second end portion connected in communication. The first end portion is connected to the gun body and communicates with the interior of the gun body. The blowing pipe extends from the second end portion through the adapter. The blowing pipe includes a connecting section located in the interior of the adapter. The anti-separation unit is arranged on the connecting section to prevent the blowing pipe from separating from the second end portion.

[0006] Preferably, the utility model further includes a protective sleeve that is sleeved on at least part of the blowing pipe.

[0007] Preferably, the utility model further includes a spring section that is sleeved on the second end portion and partially surrounds the outer circumferential side of the blowing pipe.

[0008] Preferably, the anti-separation unit includes a stop portion and an elastic body. The stop portion is radially protruded on the connecting section. The stop portion and the inner wall of the adapter are arranged in interference in the direction of the blowing pipe. The elastic body is clamped between the stop portion and the inner wall of the adapter.

[0009] Preferably, the inner wall of the adapter comprises a first pipe wall, a cliff wall and a second pipe wall, the cliff wall transversely connecting the first pipe wall and the second pipe wall, the first pipe wall being the inner wall surface of the first end portion, the first pipe wall surrounding a first passage, the second pipe wall being the inner wall surface of the second end portion, the second pipe wall surrounding a second passage, the second passage being in communication with the first passage, the radial dimension of the second passage being smaller than the radial dimension of the first passage; wherein the set of segments extends through the second passage into the first passage, the anti-extraction unit is located in the first passage, the elastic body is clamped between the stop portion and the cliff wall.

[0010] Preferably, the set of segments is recessed with a set of engaging grooves, the stop portion is embedded in the set of engaging grooves, in the axial direction of the blowing pipe, the length of the set of engaging grooves is greater than the length of the stop portion, so that the stop portion can slide relative to the set of engaging grooves.

[0011] Preferably, further comprising an adhesive, the adhesive is arranged between the set of segments and the inner wall surface of the second end portion.

[0012] Preferably, at least one of the outer surface of the set of segments and the inner wall surface of the second end portion is recessed with a plurality of recesses, the plurality of recesses can accommodate part of the adhesive.

[0013] Preferably, the outer surface of the set of segments is recessed with a network structure, the inner wall surface of the second end portion is recessed with a threaded structure.

[0014] Preferably, it further includes a protective sleeve and a spring segment. The protective sleeve is fitted onto at least a portion of the air tube, and the spring segment is fitted and positioned at the second end and partially surrounds the outer periphery of the air tube. The inner wall of the adapter includes a first tube wall, a cliff wall, and a second tube wall. The cliff wall laterally connects the first tube wall and the second tube wall. The first tube wall is the inner wall surface of the first end, forming a first channel. The second tube wall is the inner wall surface of the second end, forming a second channel, which communicates with the first channel. The radial dimension of the second channel is smaller than that of the first channel; wherein, the connecting segment extends into the first channel through the second channel, the anti-detachment unit is located in the first channel, and the elastomer is clamped between the stop and the cliff wall; the blowgun further includes an adhesive, which is disposed between the connecting segment and the inner wall surface of the second end; at least one of the outer surface of the connecting segment and the inner wall surface of the second end is recessed with a plurality of recesses, which can accommodate a portion of the adhesive; the outer surface of the connecting segment is recessed with a mesh structure, and the inner wall surface of the second end is recessed with a threaded structure. Textured structure; the stop is a fastener, detachably assembled to the assembly section; the first end is detachably screwed to the gun body; the elastic body abuts against the first tube wall; in the radial direction of the air pipe, the elastic body protrudes from the stop; the elastic body is an O-ring, sleeved on the assembly section; in the axial direction of the air pipe, one side of the elastic body abuts against the metal stop, and the other side of the elastic body simultaneously contacts the cliff wall and the adhesive; in the axial direction of the air pipe, the size of the elastic body is larger than the size of the stop; the second end A flared portion is recessed on the side away from the first end, which is used to receive a portion of the adhesive; the blowgun also includes a cyclone unit, which includes a horn cover and a hose, the horn cover being screwed to the air tube, the hose being assembled to the air tube, and the hose being able to swing inside the horn cover; the outer wall of the second end includes a protrusion and a wall portion, the protrusion protruding laterally from the wall portion, the outer diameter of the protrusion being larger than the inner diameter of the spring segment, thereby the protrusion radially supporting the spring segment; the protective sleeve portion is located between the spring segment and the air tube.

[0015] The advantages of this utility model are:

[0016] The blowgun provided by this utility model can improve the stability of the connection between the air tube and the adapter, and effectively prevent the air tube from detaching from the adapter during use. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0018] Figure 2 This is a perspective view of the adapter and air blowing pipe according to an embodiment of the present invention.

[0019] Figure 3 for Figure 2 The exploded diagram.

[0020] Figure 4 for Figure 2 A sectional view.

[0021] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0022] Figure 6 This is a cross-sectional view of an adapter according to an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the usage state of an embodiment of the present invention. Detailed Implementation

[0024] The following examples illustrate possible implementations of this utility model, but are not intended to limit the scope of protection of this utility model. The prefixes "a" or "at least one" before the terms mentioned herein are not intended to limit the quantity. Depending on the requirements, there may also be "multiple" items. This variation in quantity is also within the scope of protection, as will be stated in advance.

[0025] Please refer to Figures 1 to 7 The present invention is shown in one embodiment. The blowgun of the present invention includes: a gun body 1, an adapter 2, an air pipe 3 and an anti-detachment unit 4.

[0026] The adapter 2 includes a first end 21 and a second end 22 that are internally connected. The first end 21 is assembled to the gun body 1 and communicates with the interior of the gun body 1. In this embodiment, the first end 21 is detachably screwed to the gun body 1 to facilitate replacement and maintenance.

[0027] The air tube 3 protrudes from the second end 22 through the adapter 2. The air tube 3 includes a connecting section 31 located inside the adapter 2. The anti-detachment unit 4 is provided in the connecting section 31 to prevent the air tube 3 from detaching from the second end 22. Specifically, the anti-detachment unit 4 includes a stop portion 41 and an elastic body 42. The stop portion 41 protrudes radially from the connecting section 31. The stop portion 41 and the inner wall of the adapter 2 are configured to interfere with each other in the direction in which the air tube 3 passes. The stop portion 41 can effectively prevent the air tube 3 from detaching from the adapter 2 under force. The elastic body 42 is sandwiched between the stop portion 41 and the inner wall of the adapter 2, which can provide buffering and shock absorption to reduce the vibration and shaking generated when the high-pressure airflow is ejected from the air tube 3, thereby avoiding the breakage of the air tube 3.

[0028] Preferably, the blowgun further includes a spring segment 72, which is sleeved and positioned on the second end 22 and partially surrounds the outer periphery of the air tube 3. This spring segment 72 effectively limits the swaying range of the air tube 3 and also provides shock absorption and cushioning when in contact with the air tube 3. In this embodiment, the outer wall of the second end 22 includes a protrusion 221 and a wall portion 222. The protrusion 221 protrudes laterally from the wall portion 222, and its outer diameter is larger than the inner diameter of the spring segment 72. Therefore, the protrusion 221 radially supports the spring segment 72 to achieve positioning and prevent it from falling out.

[0029] In another preferred embodiment, the blowgun further includes a protective sleeve 71, which is fitted onto at least a portion of the air tube 3 to protect the structure of the air tube 3 in the event of an unexpected collision; wherein a portion of the protective sleeve 71 is located between the spring segment 72 and the air tube 3.

[0030] The inner wall of the adapter 2 includes a first pipe wall 23, a cliff wall 24, and a second pipe wall 25. The cliff wall 24 connects the first pipe wall 23 and the second pipe wall 25 laterally. The first pipe wall 23 is the inner wall surface of the first end 21 and forms a first channel 26. The second pipe wall 25 is the inner wall surface of the second end 22 and forms a second channel 27. The second channel 27 is connected to the first channel 26. The radial dimension of the second channel 27 is smaller than the radial dimension of the first channel 26. The connecting section 31 extends into the first channel 26 through the second channel 27. The anti-detachment unit 4 is located in the first channel 26. The elastic body 42 is sandwiched between the stop part 41 and the cliff wall 24.

[0031] In this embodiment, the stop 41 is a fastener, detachably assembled to the connecting section 31 to allow for replacement with different sizes or shapes as needed. The connecting section 31 has a recessed groove 32 into which the stop 41 is embedded. Axially, the length of the groove 32 is greater than the length of the stop 41, allowing the stop 41 to slide relative to the groove 32. Furthermore, the elastic body 42 is an O-ring, fitted onto the connecting section 31. Radially, the elastic body 42 protrudes from the stop 41, allowing it to abut against the first pipe wall 23 and generate a larger contact area with the inner wall of the adapter 2 for uniform force transmission. Furthermore, the size of the elastomer 42 is also larger than the size of the stop portion 41 in the axial direction of the air pipe 3, so that it can have a thicker structure to provide cushioning and shock absorption.

[0032] Preferably, the blowgun further includes an adhesive 5, which is disposed between the inner wall surface of the connecting section 31 and the second end 22 to strengthen the bonding strength between the air tube 3 and the adapter 2, preventing them from easily separating. In this embodiment, along the axial direction of the air tube 3, one side of the elastomer 42 abuts against the metal stop portion 41, while the other side of the elastomer 42 simultaneously contacts the cliff wall 24 and the adhesive 5. The adhesive 5 also provides the function of positioning the elastomer 42.

[0033] In another preferred embodiment, at least one of the outer surface of the connecting segment 31 and the inner wall surface of the second end 22 is provided with a plurality of recesses 33. These recesses 33 can accommodate a portion of the adhesive 5 and increase the contact area, thereby ensuring a stable bond between the outer surface of the connecting segment 31 and the inner wall surface of the second end 22. In this embodiment, the outer surface of the connecting segment 31 is provided with a textured structure, and the inner wall surface of the second end 22 is provided with a threaded structure; the plurality of recesses 33 includes both the textured structure and the threaded structure.

[0034] In another preferred embodiment, the second end 22 is recessed with a flared portion 28 on the side away from the first end 21. The flared portion 28 is used to accommodate a portion of the adhesive 5, thereby increasing the contact area between the second end 22 and the adhesive 5.

[0035] It is worth mentioning that the blowgun preferably also includes a cyclone unit 6, which includes a horn cover 61 and a hose 62. The horn cover 61 is screwed to the air blowing pipe 3, and the hose 62 is assembled to the air blowing pipe 3. The hose 62 can swing inside the horn cover 61, thereby allowing the high-pressure airflow to form a spiral airflow and spray out, which can not only increase the cleaning coverage area, but also improve the cleaning power.

[0036] The above description is a preferred embodiment of the present utility model and the technical principles applied thereto. For those skilled in the art, any obvious changes such as equivalent transformations or simple substitutions based on the technical solution of the present utility model without departing from the spirit and scope of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A blow gun characterized by, The adapter includes: a gun body; a connector having a first end portion and a second end portion in internal communication, the first end portion being connected to the gun body and communicating the interior of the gun body; a blowing tube extending through the connector from the second end portion, including a connecting segment in the interior of the connector; and a anti-disconnection unit provided on the connecting segment to prevent the blowing tube from disconnection from the second end portion.

2. The lance of claim 1 wherein, Further comprising a protective sleeve sleeved on at least part of the blowing tube.

3. The lance of claim 1 wherein, Further comprising a spring segment sleeved on the second end portion and partially surrounding the outer circumferential side of the blowing tube.

4. The lance of claim 1 wherein, The anti-disconnection unit includes a stopper and an elastic body, the stopper radially protruding from the connecting segment, the stopper and the inner wall of the connector being in interference arrangement in the direction of the blowing tube, the elastic body being clamped between the stopper and the inner wall of the connector.

5. The lance of claim 4 wherein, The inner wall of the connector includes a first tube wall, a cliff wall and a second tube wall, the cliff wall transversely connecting the first tube wall and the second tube wall, the first tube wall being the inner wall surface of the first end portion, the first tube wall surrounding a first channel, the second tube wall being the inner wall surface of the second end portion, the second tube wall surrounding a second channel, the second channel being in communication with the first channel, the radial dimension of the second channel being smaller than the radial dimension of the first channel; wherein the connecting segment extends through the second channel into the first channel, the anti-disconnection unit is located in the first channel, and the elastic body is clamped between the stopper and the cliff wall.

6. The lance of claim 4 wherein, The connecting segment is recessed with a connecting groove, the stopper is embedded in the connecting groove, and in the axial direction of the blowing tube, the length of the connecting groove is greater than the length of the stopper, so that the stopper can slide relative to the connecting groove.

7. A lance as claimed in any one of claims 1 to 6, characterized in that Further comprising an adhesive provided between the connecting segment and the inner wall surface of the second end portion.

8. The lance of claim 7, wherein At least one of the outer surface of the connecting segment and the inner wall surface of the second end portion is recessed with a plurality of recesses, the plurality of recesses can accommodate part of the adhesive.

9. The lance of claim 8 wherein, The outer surface of the connecting segment is recessed with a network structure, and the inner wall surface of the second end portion is recessed with a threaded structure.

10. The lance of claim 6 wherein, The adapter further comprises a protective sleeve and a spring section, the protective sleeve is sleeved on at least part of the blowing pipe, the spring section is sleeved and positioned at the second end portion and partially surrounds the outer periphery of the blowing pipe; the inner wall of the adapter comprises a first pipe wall, a cliff wall and a second pipe wall, the cliff wall transversely connects the first pipe wall and the second pipe wall, the first pipe wall is the inner wall surface of the first end portion, the first pipe wall surrounds a first channel, the second pipe wall is the inner wall surface of the second end portion, the second pipe wall surrounds a second channel, the second channel is in communication with the first channel, the radial dimension of the second channel is smaller than the radial dimension of the first channel; wherein the connecting section penetrates through the second channel and extends into the first channel, the anti-extraction unit is located in the first channel, the elastic body is clamped between the stop portion and the cliff wall; the blowing gun further comprises an adhesive, the adhesive is arranged between the connecting section and the inner wall surface of the second end portion; at least one of the outer surface of the connecting section and the inner wall surface of the second end portion is recessed with a plurality of recesses, the plurality of recesses can accommodate part of the adhesive; the outer surface of the connecting section is recessed with a network structure, the inner wall surface of the second end portion is recessed with a threaded structure; the stop portion is a fastener, the stop portion is detachably assembled on the connecting section; the first end portion is detachably screwed on the gun body; the elastic body abuts against the first pipe wall; in the radial direction of the blowing pipe, the elastic body protrudes from the stop portion; the elastic body is an O-ring, the elastic body is sleeved on the connecting section; in the axial direction of the blowing pipe, one side of the elastic body abuts against the metal stop portion, the other side of the elastic body simultaneously contacts the cliff wall and the adhesive; in the axial direction of the blowing pipe, the size of the elastic body is greater than the size of the stop portion; the second end portion is recessed with a flared portion on the side away from the first end portion, the flared portion is used to accommodate part of the adhesive; the blowing gun further comprises a cyclone unit, the cyclone unit comprises a horn cover and a hose, the horn cover is screwed on the blowing pipe, the hose is connected to the blowing pipe, the hose can swing inside the horn cover; the outer side wall of the second end portion comprises a bulwark and a wall portion, the bulwark transversely protrudes from the wall portion, the outer diameter of the bulwark is greater than the inner diameter of the spring section, so that the bulwark radially supports the spring section; part of the protective sleeve is between the spring section and the blowing pipe.

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