CN216359232U

CN216359232U - Springless dust blowing gun

Info

Publication number: CN216359232U
Application number: CN202122638358.5U
Authority: CN
Inventors: 徐世方
Original assignee: Ningbo Xinbang Technology Co ltd
Current assignee: Ningbo Xinbang Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-22
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to the technical field of dust blowing devices, in particular to a springless dust blowing gun, which comprises an air guide pipe, a first pipe fitting, a second pipe fitting, a third pipe fitting, a gun head and a switch assembly, wherein the first pipe fitting is connected with the air guide pipe; the air guide pipe consists of a first pipe fitting, a second pipe fitting and a third pipe fitting which are coaxially arranged in sequence; the diameter of the second pipe fitting is larger than the diameters of the first pipe fitting and the third pipe fitting; the screw thread of the gun head is screwed at the end part of the third pipe fitting; the switch assembly activity sets up in the second pipe fitting, and the switch assembly is coaxial setting with the second pipe fitting, and this application need not the spring and backs down the air inlet and realizes opening and shutting of air inlet, and this application utilizes wind regime self pressure to open and shut the work of realizing opening and shutting of air inlet, and simple structure, effectual, long service life can not appear the spring ageing.

Description

Springless dust blowing gun

Technical Field

The utility model relates to the technical field of dust blowing devices, in particular to a spring-free dust blowing gun.

Background

The dust blowing gun is mainly used for dust removal in factories and during installation and maintenance. The pneumatic dust blowing gun effectively reduces the consumption of compressed air by utilizing the principle of air amplification, thereby generating strong and accurate airflow and driving ambient air to work together. The traditional dust blowing gun is supported against an air inlet by the return of a spring, so that air flow cannot enter an air blowing pipe to close the air gun. Through long-term compression spring, can lead to the spring to become soft or split, under these two kinds of circumstances, the air gun all is in gas leakage state, and the mill that uses the air gun will suffer the superstrong power consumptive loss of air compressor machine.

Therefore, a springless dust blowing gun which can open and close the air inlet of the air blowing pipe without using a spring is needed.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a springless dust blowing gun in view of the problems of the prior art.

In order to solve the problems of the prior art, the utility model adopts the technical scheme that:

a springless dust blowing gun comprises an air guide pipe, a first pipe fitting, a second pipe fitting, a third pipe fitting, a gun head and a switch assembly; the air guide pipe consists of a first pipe fitting, a second pipe fitting and a third pipe fitting which are coaxially arranged in sequence; the diameter of the second pipe fitting is larger than the diameters of the first pipe fitting and the third pipe fitting; the screw thread of the gun head is screwed at the end part of the third pipe fitting; the switch assembly is movably arranged in the second pipe fitting and is coaxially arranged with the second pipe fitting.

Preferably, the first pipe fitting comprises an end cover and an air inlet; the first pipe fitting is a cylindrical pipe body; the end cover is detachably arranged at the end part of the first pipe fitting; the air inlet is arranged on the side wall of the first pipe fitting, the air inlet is communicated with the inside of the first pipe fitting, and the air inlet is used for connecting an external air source.

Preferably, the third pipe fitting comprises a first connecting column, an air duct and a sealing rubber ring; the first connecting column is fixedly arranged at the end part of the third pipe fitting, and the outer wall of the first connecting column is provided with an external thread; the middle part of the third pipe fitting is also axially provided with an air duct in a penetrating way; the sealing rubber ring is embedded and installed on the surface of the joint of the second pipe fitting and the third pipe fitting.

Preferably, the switch assembly comprises a mounting block, a second connecting column, a guide pipe and an air inlet hole; the mounting block is arranged in a disc shape; the second connecting column is fixedly arranged on one side of the mounting block, the second connecting column and the mounting block are coaxially arranged, and the outer wall of the second connecting column is provided with an external thread; the guide pipe is fixedly arranged on the other side, far away from the second connecting column, of the mounting block, the guide pipe is a hollow pipe body, the guide pipe is in clearance fit with the air channel, and the guide pipe can be arranged in the air channel in a pluggable mode; the air inlet hole has still been seted up to the outer wall of stand pipe, and the air inlet hole has seted up a plurality ofly along the axis direction equidistance of stand pipe.

Preferably, the diameter of the mounting block is larger than the diameter of the air duct and smaller than the inner diameter of the second pipe fitting and the first pipe fitting.

Preferably, the switch assembly further comprises a second sealing rubber ring, the second sealing rubber ring is sleeved outside the guide pipe, and the surface of the second sealing rubber ring is attached to the connecting surface of the mounting block and the guide pipe.

Compared with the prior art, the beneficial effect of this application is:

1. the work of how to insert outside wind regime has been realized through the air intake to this application.

2. This application has realized how to connect the rifle head to the work of third pipe fitting tip through first spliced pole soon.

3. This application is through the cooperation of installation piece, second spliced pole, stand pipe and fresh air inlet, has realized how to realize freely releasing and closed work to the inside wind regime of first pipe fitting and second pipe fitting.

Drawings

FIG. 1 is a side view of the first embodiment;

FIG. 2 is a side view II of the embodiment;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is a perspective view of an air guide duct according to an embodiment;

fig. 6 is a perspective view of a switch assembly of the embodiment.

The reference numbers in the figures are:

1-an air guide pipe; 1 a-a first tubular; 1a 1-end cap; 1a 2-air intake; 1 b-a second tubular; 1 c-a third tubular; 1c 1-first connecting column; 1c 2-air duct; 1c 3-sealing rubber ring;

2-gun head;

3-a switching assembly; 3 a-a mounting block; 3 b-a second connecting column; 3 c-a guide tube; 3 d-air inlet holes; 3 e-second seal rubber ring.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 6, the present application provides:

a springless dust blowing gun comprises an air guide pipe 1, a first pipe fitting 1a, a second pipe fitting 1b, a third pipe fitting 1c, a gun head 2 and a switch assembly 3; the air guide pipe 1 consists of a first pipe fitting 1a, a second pipe fitting 1b and a third pipe fitting 1c which are coaxially arranged in sequence; the diameter of the second pipe member 1b is larger than the diameters of the first pipe member 1a and the third pipe member 1 c; the gun head 2 is screwed at the end part of the third pipe fitting 1 c; the switch component 3 is movably arranged in the second pipe fitting 1b, and the switch component 3 and the second pipe fitting 1b are coaxially arranged.

Based on the above embodiment, in the working state, the worker firstly movably connects the external driving wrench with the end of the switch component 3; then, an external air source is connected and guided into the first pipe fitting 1a, the switch component 3 can independently approach and abut against the end part of the second pipe fitting 1b towards the direction of the second pipe fitting 1b under the pressure action of the air source, the contact between the second pipe fitting 1b and the switch component 3 is tighter as the pressure of the air source is larger, when the switch component 3 is required to be far away from the third pipe fitting 1c and the air source in the first pipe fitting 1a and the second pipe fitting 1b is released towards the outside through the third pipe fitting 1c, only an external driving wrench needs to be pulled to pull the switch component 3 away from the third pipe fitting 1c, and the air source at the moment penetrates through the switch component 3 to gush into the third pipe fitting 1c, so that the compressed air source is released.

As shown in fig. 2:

the first pipe fitting 1a comprises an end cover 1a1 and an air inlet 1a 2; the first pipe fitting 1a is a cylindrical pipe body; the end cover 1a1 is detachably arranged at the end part of the first pipe fitting 1 a; the air inlet 1a2 is opened in a side wall of the first pipe 1a, the air inlet 1a2 is disposed in the first pipe 1a, and the air inlet 1a2 is configured to receive an external air source.

Based on the above embodiment, the air inlet opening 1a2 is used to interface with an external air source, so as to introduce the air source into the first pipe member 1a and the second pipe member 1 b.

As shown in fig. 3 to 5:

the third pipe fitting 1c comprises a first connecting column 1c1, an air duct 1c2 and a sealing rubber ring 1c 3; the first connecting column 1c1 is fixedly arranged at the end part of the third pipe fitting 1c, and the outer wall of the first connecting column 1c1 is provided with an external thread; the middle part of the third pipe fitting 1c is also axially provided with an air duct 1c2 in a penetrating way; the sealing rubber ring 1c3 is embedded in the surface of the joint of the second pipe fitting 1b and the third pipe fitting 1 c.

Based on the above embodiment, the first connection column 1c1 is used to be connected with the air duct 1 by screw threads, the air duct 1c2 is used to transmit the compressed air source to the outside, and the sealing rubber ring 1c3 is used to cooperate with the switch module 3 to realize the sealing between the interference surfaces of the third pipe fitting 1c and the switch module 3, so as to avoid air leakage.

As shown in fig. 6:

the switch component 3 comprises a mounting block 3a, a second connecting column 3b, a guide pipe 3c and an air inlet hole 3 d; the mounting block 3a is arranged in a disc shape; the second connecting column 3b is fixedly arranged on one side of the mounting block 3a, the second connecting column 3b and the mounting block 3a are coaxially arranged, and the outer wall of the second connecting column 3b is provided with an external thread; the guide pipe 3c is fixedly arranged on the other side, far away from the second connecting column 3b, of the mounting block 3a, the guide pipe 3c is a hollow pipe body, the guide pipe 3c is in clearance fit with the air duct 1c2, and the guide pipe 3c can be arranged in the air duct 1c2 in a pluggable mode; an air inlet hole 3d is also formed in the outer wall of the guide pipe 3c, and the air inlet holes 3d are formed in the axial direction of the guide pipe 3c at equal intervals.

Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is how to achieve free release of the compressed air in the first pipe member 1a and the second pipe member 1 b. When compressed air needs to be released towards the outside in a working state, a worker pulls the external driving wrench, the mounting block 3a, the second connecting column 3b and the guide tube 3c are driven to approach towards the direction of the first pipe fitting 1a by driving a wrench, when the guide pipe 3c in the air duct 1c2 is pulled out by the external driving wrench, the air inlet 3d formed on the outer wall of the guide pipe 3c will leak out, and at this time, the air source in the first pipe 1a and the second pipe 1b will flow into the third pipe 1c, thereby completing the release of the compressed air, the mounting block 3a can always reciprocate along the axial direction of the third pipe member 1c under the guiding action of the guide tube 3c, when the worker loosens the driving wrench, the mounting block 3a can be quickly attached to the end of the third pipe fitting 1c under the action of the internal wind pressure, so that the sealing and closing work of the port of the air duct 1c2 is realized.

As shown in fig. 4 and 6:

the diameter of the mounting block 3a is larger than that of the air duct 1c2 and smaller than the inner diameters of the second pipe fitting 1b and the first pipe fitting 1 a.

Based on the above embodiment, the diameter of the mounting block 3a is greater than the diameter of the air duct 1c2, the guide tube 3c fixedly mounted on one side of the mounting block can complete the good covering and sealing work on the port of the air duct 1c2, so that the air source in the first pipe fitting 1a and the second pipe fitting 1b cannot be ejected out of the air duct 1c2 without being driven by external force, the diameter of the mounting block 3a is smaller than the inner diameter of the second pipe fitting 1b, and when the mounting block 3a is pulled away from the third pipe fitting 1c under external drive and exposes the air inlet 3d formed in the outer wall of the guide tube 3c, the air source can enter the air inlet 3d more quickly.

As shown in fig. 6:

the switch component 3 further comprises a second sealing rubber ring 3e, the second sealing rubber ring 3e is sleeved and installed outside the guide pipe 3c, and the surface of the second sealing rubber ring 3e is attached to the connecting surface of the installation block 3a and the guide pipe 3 c.

Based on the above embodiment, the second rubber sealing ring 3e is used to cooperate with the rubber sealing ring 1c3, so that the fitting surface of the mounting block 3a and the third pipe fitting 1c has a better sealing effect.

This application need not the spring and returns the realization of top air inlet to opening and shutting of air inlet, and this application utilizes wind regime self pressure to open and shut the work of realizing opening and shutting the air inlet, and simple structure, effectual, long service life can not appear the spring ageing.

The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A springless dust blowing gun is characterized by comprising an air guide pipe (1), a first pipe fitting (1a), a second pipe fitting (1b), a third pipe fitting (1c), a gun head (2) and a switch assembly (3); the air guide pipe (1) consists of a first pipe fitting (1a), a second pipe fitting (1b) and a third pipe fitting (1c) which are coaxially arranged in sequence; the diameter of the second pipe (1b) is larger than the diameters of the first pipe (1a) and the third pipe (1 c); the gun head (2) is screwed at the end part of the third pipe fitting (1 c); the switch component (3) is movably arranged in the second pipe fitting (1b), and the switch component (3) and the second pipe fitting (1b) are coaxially arranged.

2. A springless dust blowing gun as claimed in claim 1, characterised in that the first tubular member (1a) comprises an end cap (1a1) and an air inlet (1a 2); the first pipe fitting (1a) is a cylindrical pipe body; the end cover (1a1) is detachably arranged at the end part of the first pipe fitting (1 a); the air inlet (1a2) is arranged on the side wall of the first pipe fitting (1a), the air inlet (1a2) is communicated with the inside of the first pipe fitting (1a), and the air inlet (1a2) is used for connecting an external air source.

3. A springless dust blowing gun as claimed in claim 2, characterised in that the third tube member (1c) comprises a first connecting pillar (1c1), a duct (1c2) and a sealing rubber ring (1c 3); the first connecting column (1c1) is fixedly arranged at the end part of the third pipe fitting (1c), and the outer wall of the first connecting column (1c1) is provided with an external thread; the middle part of the third pipe fitting (1c) is also axially provided with an air duct (1c2) in a penetrating way; the sealing rubber ring (1c3) is embedded and installed on the surface of the joint of the second pipe fitting (1b) and the third pipe fitting (1 c).

4. A springless dust blowing gun as claimed in claim 3, characterized in that the switch assembly (3) comprises a mounting block (3a), a second connecting column (3b), a guide duct (3c) and an air inlet opening (3 d); the mounting block (3a) is arranged in a disc shape; the second connecting column (3b) is fixedly arranged on one side of the mounting block (3a), the second connecting column (3b) and the mounting block (3a) are coaxially arranged, and the outer wall of the second connecting column (3b) is provided with an external thread; the guide pipe (3c) is fixedly arranged on the other side, far away from the second connecting column (3b), of the mounting block (3a), the guide pipe (3c) is a hollow pipe body, the guide pipe (3c) is in clearance fit with the air duct (1c2), and the guide pipe (3c) can be arranged in the air duct (1c2) in a pulling and inserting mode; an air inlet hole (3d) is further formed in the outer wall of the guide pipe (3c), and a plurality of air inlet holes (3d) are formed in the axial direction of the guide pipe (3c) at equal intervals.

5. A springless dust blowing gun as claimed in claim 4, characterised in that the diameter of the mounting block (3a) is larger than the diameter of the air duct (1c2) and smaller than the inner diameters of the second tube member (1b) and the first tube member (1 a).

6. A springless dust blowing gun as claimed in claim 5, wherein the switch assembly (3) further comprises a second sealing rubber ring (3e), the second sealing rubber ring (3e) is sleeved outside the guide tube (3c), and the surface of the second sealing rubber ring (3e) is attached to the connecting surface of the mounting block (3a) and the guide tube (3 c).