A filling gun

Abstract

The present invention relates to a perfusion gun, comprising a gun barrel, a quick connector and a rotating connection assembly provided with a central channel, wherein the front section and the rear section of the gun barrel are arranged at an obtuse angle, and the rotating connection assembly comprises at least two components which are arranged at two ends and are relatively fixed in the axial direction and relatively rotatable in the circumferential direction. The perfusion gun of the present invention sets the front section and the rear section of the gun barrel at an obtuse angle, and connects the gun barrel and the quick connector of the perfusion gun to the two relatively rotatable components respectively, so that the gun barrel and the quick connector form a relatively rotatable connection, and then connects to a delivery pipe through the quick connector. When in use, the gun barrel can be rotated relative to the delivery pipe as needed, which is suitable for perfusion in different directions or positions. The obtuse angle setting of the front section and the rear section of the gun barrel is more ergonomic, reduces the labor intensity of workers, is convenient to use, and greatly improves labor efficiency.

Description

Technical Field

[0001] The invention relates to equipment in the field of construction, in particular to a special pouring gun for a light steel house enclosure structure. Background Art

[0002] Light steel housing enclosure structure is one of the main structural forms of civil engineering. Compared with other materials, it has the advantages of high strength, light weight, high degree of industrialization, short construction period, good material properties, and good seismic resistance. Therefore, it is the fastest-growing and most widely used structural form, and is increasingly widely used in industrial and civil buildings. In the light steel housing enclosure structure, light steel keel is used as the supporting structure, steel plate mesh or other partition materials are used as the enclosure bottom plate, and concrete, mortar and lightweight materials are used as filling to make a solid wall. At present, when preparing the light steel housing enclosure structure, the filling materials such as concrete, mortar and lightweight materials are transported along the delivery pipe and the front nozzle through a mortar pump, and the front nozzle is inserted into the mold net from the opening to inject the filling material into it. In this process, in order to add materials more evenly, on the one hand, it is preferred to insert the nozzle deeper into the mold net, and on the other hand, it is necessary to insert the injection into multiple different openings. However, the existing nozzle is usually in the shape of a straight tube, and is fixedly connected to the delivery pipe and cannot rotate relative to each other, which makes it very inconvenient to use, affecting production efficiency and engineering quality. Summary of the invention

[0003] The purpose of the present invention is to provide a perfusion gun which is easy to use and has high efficiency in order to overcome the shortcomings of the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a perfusion gun, characterized in that it includes a gun barrel, a quick connector and a rotating connection assembly provided with a central channel, the front section and the rear section of the gun barrel are arranged at an obtuse angle, the rotating connection assembly includes at least two parts which are arranged at two ends and are relatively fixed in the axial direction and can rotate relatively in the circumferential direction, the gun barrel and the quick connector of the perfusion gun are respectively connected to the two relatively rotatable parts, so that the gun barrel and the quick connector form a relatively rotatable connection.

[0005] As a further configuration of the present invention, the rotating connection assembly includes a connecting nut, an intermediate nut and a connecting sleeve; the rear end of the gun barrel is provided with a threaded pipe joint matching one end of the connecting nut, a raised limiting ring is provided in the middle of the outer wall of the connecting sleeve, and an outer wall on one side of the limiting ring of the connecting sleeve is provided with an external thread matching the other end of the connecting nut; the inner diameter of the intermediate nut is gap matched with the diameter of the limiting ring, and one end is provided with a retaining ring protruding toward the center, and the aperture of the retaining ring is gap matched with the outer diameter of the connecting sleeve; the outer diameter of the other end of the quick connector connected to the conveying pipe is matched with the inner diameter of the intermediate nut, and a connecting thread is provided therebetween, the inner diameter of the other end of the quick connector connected to the conveying pipe is gap matched with the outer diameter of the other side of the limiting ring of the connecting sleeve, and a sealing layer is provided on the inner wall, and a sealing ring is also provided on the inner wall near the port, and the connecting nut and the intermediate nut constitute two components that are relatively fixed in the axial direction and can rotate relatively in the circumferential direction.

[0006] As a further configuration of the present invention, the front section and the rear section of the gun barrel are arranged at an obtuse angle of 100-130°.

[0007] The perfusion gun of the present invention sets the front section and the rear section of the gun barrel at an obtuse angle, and respectively connects the gun barrel and the quick connector of the perfusion gun with the two relatively rotatable parts, so that the gun barrel and the quick connector form a relatively rotatable connection, and then connects with the delivery pipe through the quick connector. When in use, the gun barrel can be rotated relative to the delivery pipe as needed, which is suitable for perfusion in different directions or positions. The setting of the front section and the rear section of the gun barrel at an obtuse angle is more ergonomic, reduces the labor intensity of workers, is convenient to use, and greatly improves labor efficiency.

[0008] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attached Figure 1 It is a schematic cross-sectional view of a local structure of a specific embodiment of the present invention;

[0010] Attached Figure 2 It is a structural cross-sectional view of a specific embodiment of a rotary connection assembly of the present invention;

[0011] Attached Figure 3 It is a schematic cross-sectional view of the local structure of a specific embodiment of a gun barrel of the present invention;

[0012] Attached Figure 4 It is a schematic cross-sectional view of a specific embodiment of a connecting nut of the present invention;

[0013] Attached Figure 5 It is a front view of a specific embodiment of a connecting nut of the present invention;

[0014] Attached Figure 6 This is a front view of a specific embodiment of the intermediate nut of the present invention;

[0015] Attached Figure 7 It is a schematic cross-sectional view of a specific embodiment of the intermediate nut of the present invention;

[0016] Attached Figure 8 It is a schematic cross-sectional view of a specific embodiment of the connecting sleeve of the present invention;

[0017] Attached Fig. 9 It is a schematic cross-sectional view of a specific embodiment of the sealing layer of the present invention;

[0018] Attached Fig.10 It is a schematic cross-sectional view of the structure of a specific embodiment of a quick connector of the present invention. DETAILED DESCRIPTION

[0019] like Figure 1 As shown, the injection gun of the present invention comprises a gun barrel 1, a quick connector 5 and a rotating connection assembly provided with a central channel. The front section and the rear section of the gun barrel 1 are arranged at an obtuse angle, and the rotating connection assembly comprises at least two components which are arranged at two ends and are relatively fixed in the axial direction and relatively rotatable in the circumferential direction. The gun barrel 1 and the quick connector of the injection gun are respectively connected to the two relatively rotatable components, so that the gun barrel 1 and the quick connector form a relatively rotatable connection.

[0020] like Figure 1-10As shown, in this specific implementation, the body of the gun barrel 1 is preferably made of engineering plastic (such as ABS), the front section and the rear section of the gun barrel 1 are preferably set at an obtuse angle of 100-130°, preferably 120°, and the rear end of the gun barrel 1 is provided with an external thread matching one end of the connecting nut 2, specifically, a metal threaded pipe joint 8 is provided at the rear end of the gun barrel 1 (the threaded pipe joint 8 and the body of the gun barrel 1 can also be integrally arranged). The rotary connection assembly includes a connecting nut 2, an intermediate nut 3 and a connecting sleeve 6, and the connecting nut 2, the intermediate nut 3 and the connecting sleeve 6 are preferably made of metal materials to improve their service life; a raised limiting ring 601 is provided in the middle of the outer wall of the connecting sleeve 6, and an outer wall of one side of the limiting ring 601 of the connecting sleeve 6 (the end connected to the connecting nut 2) is provided with an external thread matching the other end of the connecting nut 2; the inner diameter of the intermediate nut 3 matches the diameter gap of the limiting ring 601 so that the connecting sleeve 6 can be placed in the inner cavity of the intermediate nut 3, and a retaining ring 301 protruding toward the center is provided at one end, and the aperture of the retaining ring 301 matches the outer diameter gap of the connecting sleeve 6, and the inner wall of the intermediate nut 3 is provided with a connecting thread; the quick connector 5 can be selected from the existing technology , such as a jamb joint, the outer diameter of the other end of the quick connector 5 connected to the delivery pipe (the end connected to the intermediate nut 3) matches the inner diameter of the intermediate nut 3, and the outer wall is provided with a connecting thread matching the inner thread of the intermediate nut 3, that is, a connecting thread is provided between the two, and the inner diameter of the other end of the quick connector 5 connected to the delivery pipe is gap-matched with the outer diameter of the other side of the limiting ring 601 of the connecting sleeve 6, and the inner wall is provided with a sealing layer 4, the sealing layer 4 is preferably made of polyurethane or fluoroplastic, and a sealing ring 7 is also provided on the inner wall near the port, the inner diameter of the sealing layer 4 is zero-fit or interference-fit with the outer diameter of the connecting sleeve 6 to form a seal, and the connecting nut 2 and the intermediate nut 3 constitute the two components that are relatively fixed in the axial direction and can rotate relatively in the circumferential direction.

[0021] The assembling method of the injection gun of the present invention is as follows: insert the connecting sleeve 6 into the intermediate nut 3, and one end of the connecting sleeve 6 with an external thread extends out from the hole of the retaining ring 301 of the intermediate nut 3 to be threadedly connected with one end of the connecting nut 2, and the other end of the connecting nut 2 is threadedly connected with the threaded pipe joint 8 at the rear end of the gun barrel 1; one end of the quick connector 5 with a connecting thread is inserted into the space between the inner wall of the intermediate nut 3 and the outer wall of the other end of the connecting sleeve 6, and forms a threaded connection with the intermediate nut 3, the retaining ring 301 and the limiting ring 601 in the middle of the outer wall of the connecting sleeve 6 are matched to form a limit, and the sealing ring 7 and the sealing layer 4 on the inner wall of the quick connector 5 form a seal with the outer wall of the connecting sleeve 6.

[0022] The present invention is not limited to the above-mentioned specific implementation modes. A person skilled in the art may adopt other various specific implementation modes to implement the present invention based on the contents disclosed in the present invention, or any simple changes or modifications made to the design structure and concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A perfusion gun, characterized in that: The invention comprises a gun barrel, a quick connector and a rotary connection assembly provided with a central channel, wherein the front section and the rear section of the gun barrel are arranged at an obtuse angle, and the rotary connection assembly comprises at least two parts which are arranged at two ends and are relatively fixed in the axial direction and can rotate relatively in the circumferential direction, and the gun barrel and the quick connector of the perfusion gun are respectively connected with the two relatively rotatable parts, so that the gun barrel and the quick connector form a relatively rotatable connection; the rotary connection assembly comprises a connecting nut, an intermediate nut and a connecting sleeve; a threaded pipe joint matching with one end of the connecting nut is provided at the rear end of the gun barrel, a raised limiting ring is provided in the middle of the outer wall of the connecting sleeve, and an outer wall on one side of the limiting ring of the connecting sleeve is provided with a threaded pipe joint matching with one end of the connecting nut An external thread matching the other end of the connecting nut; the inner diameter of the intermediate nut matches the diameter gap of the limiting ring, and one end is provided with a retaining ring protruding toward the center, and the aperture of the retaining ring matches the outer diameter gap of the connecting sleeve; the outer diameter of the other end of the quick connector connected to the conveying pipe matches the inner diameter of the intermediate nut, and a connecting thread is provided between the two, the inner diameter of the other end of the quick connector connected to the conveying pipe matches the outer diameter gap of the other side of the limiting ring of the connecting sleeve, and a sealing layer is provided on the inner wall, and a sealing ring is also provided on the inner wall near the port, and the connecting nut and the intermediate nut constitute the two components that are relatively fixed in the axial direction and can rotate relatively in the circumferential direction.

2. The injection gun according to claim 1, characterized in that: The front section and the rear section of the gun barrel are arranged at an obtuse angle of 100-130 degrees.

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