Quick connector for inflating hose

Abstract

The utility model discloses a hose inflation quick connector which comprises a tubular inflation nozzle, one end of the inflation nozzle is a pipe connection end, and the other end of the inflation nozzle is an air source end. A plurality of pipe connecting parts which are sequentially arranged in the axial direction are arranged on the peripheral face of the air charging connector, the outer diameters of the pipe connecting parts are gradually increased in the direction from the pipe connecting end to the air source end, and a hooping strip used for hooping a hose to one of the pipe connecting parts is connected outside the air charging connector in a winding mode. One end of the hooping strip is a pipe sticking end, the other end of the hooping strip is a hooping operation end, and the hooping operation end bypasses the pipe sticking end and is located on the outer side of the pipe sticking end; a plurality of hooping ratchets are arranged on the outer side face of the hooping strip, and a pawl assembly used for clamping the hooping ratchets is arranged at the position, located on the outer side of the hooping operation end, of the pipe attaching end. The connecting structure is good in connecting sealing performance and rapid to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of inflatable devices, in particular to a quick hose inflation connector. Background Art

[0002] The processing of plastic hoses mainly involves melting raw material particles first and then extruding them through a mold into a tubular shape, and then obtaining the finished hose after cooling and shaping. Currently, the melting, extrusion, cooling, etc. of hoses have been automated using hose processing equipment, but there has never been a suitable automatic winding or packaging device for the formed and output hoses for supporting production. Therefore, subsequent operations such as hose winding mainly rely on manual labor. The above work specifically includes: the hoses continuously output by the hose processing equipment are pre-coiled manually, the hoses reaching a fixed length are cut manually, the two ends of the cut hoses are heat-sealed, and the hose stacks are manually transferred to other equipment for winding and packaging.

[0003] Among them, during the pre-coiling process of the hoses continuously output by the hose processing equipment, air pressure needs to be maintained in this part of the output hoses to avoid tube body bending during the pre-coiling process and achieve a better pre-coiling state. The conventional method is to sleeve the starting end of the output hose on a certain nozzle, and supply high-pressure gas into the tube through the nozzle, so that the air pressure can be continuously maintained in the subsequent output hoses.

[0004] However, this method still has some problems in actual production. First, the connection between the starting end of the hose and the nozzle is a conventional socket connection, which is not firm and has air leakage itself, so that the air pressure in the hose will not be too high. And the length of the hoses forming the hose stack is relatively long, generally ranging from dozens of meters to one hundred and ten meters. When pre-coiling into a hose stack, the upper part of the hoses will form a stacking pressure on the bottom hoses, and this stacking pressure will flatten the bottom hoses; since the bottom hoses are the parts closer to the starting end, the air pressure in the upper and middle parts of the hose stack will be more insufficient, so the hoses are still prone to tube body bending and other situations during the pre-coiling process. Second, currently, to reduce labor costs, most workshop productions adopt a one-person multi-machine operation mode, that is, a single person shuttles between multiple hose processing equipment to perform various operations such as connecting the starting ends of hoses, assisting in pre-coiling hoses, cutting to a fixed length, heat-sealing the tube ends, and inspecting the equipment. This makes the time for connecting the starting end of the hose to the nozzle very limited each time, and the connection quality cannot be guaranteed, and problems such as insufficient air pressure during the pre-coiling process and tube body bending are more prominent. In summary, a high-pressure gas supply structure with good connection sealing and quick disassembly and assembly needs to be considered to improve the above situation. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a quick hose inflation connector with good connection sealing and quick disassembly and assembly.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a hose inflation quick connector, comprising an inflation nozzle arranged in a tubular shape, one end of the inflation nozzle being a pipe connecting end and the other end being an air source end; a plurality of pipe connecting portions arranged in sequence along the axial direction are provided on the outer circumferential surface of the inflation nozzle, the outer diameter of the pipe connecting portion is gradually increased along the pipe connecting end toward the air source end, a tightening strip for tightening the hose at one of the pipe connecting portions is connected around the outside of the inflation nozzle, one end of the tightening strip is a tube-contacting end and the other end is a tightening operating end, the tightening operating end bypasses the tube-contacting end and is located on the outside of the tube-contacting end; a plurality of tightening ratchets are arranged on the outer surface of the tightening strip, and a ratchet assembly for clamping the tightening ratchets is provided on the tube-contacting end at the outside of the tightening operating end.

[0007] As a preferred technical solution, the pawl assembly includes a tightening pawl swingably mounted on the tube end and located outside the tightening operating end, a clamping force spring is provided between the tightening pawl and the tube end, and the tightening pawl is connected to a clamping release operating part.

[0008] As a preferred technical solution, the tube-sticking end is integrally provided with a wedge-shaped tube-sticking section extending between the clamping operation end and the hose.

[0009] As a preferred technical solution, the connecting pipe portion includes a connecting pipe section, and an end of the connecting pipe section close to the connecting pipe end is provided with a connecting pipe guiding cone surface.

[0010] As a preferred technical solution, a release groove is provided between the connecting pipe section and the adjacent connecting pipe guide cone surface.

[0011] As a preferred technical solution, two sealing protrusions are provided on the inner side surface of the tightening strip, and the distance between the two sealing protrusions is not less than the length of the connecting pipe section.

[0012] As a preferred technical solution, a spherical protrusion is provided on the inflation nozzle between the gas source end and the connecting pipe portion, the spherical protrusion is connected to a ball joint, and the ball joint is provided with a fixed-angle bolt for abutting against the spherical protrusion.

[0013] Due to the adoption of the above technical solution, the hose inflation quick connector includes an inflation nozzle arranged in a tubular shape. One end of the inflation nozzle is a connection end and the other end is a gas source end. A plurality of connection parts are arranged on the outer peripheral surface of the inflation nozzle in sequence along the axial direction. The outer diameter of the connection part gradually increases from the connection end to the gas source end. A tightening strip is wound around the inflation nozzle for tightening the hose at one of the connection parts. One end of the tightening strip is a pipe-attaching end and the other end is a tightening operation end. The tightening operation end bypasses the pipe-attaching end and is located outside the pipe-attaching end. A plurality of tightening ratchet teeth are arranged in a row on the outer side surface of the tightening strip. An arrester pawl assembly for clamping the tightening ratchet teeth is arranged on the pipe-attaching end at the outside of the tightening operation end. When the present utility model is in use, the gas source end pipeline is connected to a high-pressure gas source. The starting end of the hose is sleeved on the inflation nozzle from the connection end and is located at a suitable position of the connection part. The tightening operation end is pulled, so that the tightening strip tightens the hose at this connection part. The action of the arrester pawl and the ratchet teeth can ensure the reliability after tightening. Through circumferential tightening, a good connection sealing property is formed between the hose and the connection part, better air pressure can be realized inside the hose, which is beneficial to reducing the bending of the pipe body. And the connection only needs to pull the tightening operation end. When disassembling, by releasing the clamping of the arrester pawl assembly, the tightening strip is released from tightening, and then the hose can be taken off. The disassembly and assembly are both convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following drawings are only intended to illustrate and explain the present utility model schematically and do not limit the scope of the present utility model. Among them:

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0016] Figure 2 is Figure 1 an enlarged A-A structural diagram of

[0017] Figure 3 is Figure 2 a schematic diagram of the state of releasing the clamping;

[0018] Figure 4 is a cross-sectional structural diagram of the tightening strip of an embodiment of the present utility model;

[0019] Figure 5 is Figure 1 an enlarged B-B structural diagram of

[0020] Figure 6 is a state diagram of the tightening strip of an embodiment of the present utility model hanging on the inflation nozzle.

[0021] In the figure: 1 - inflation nozzle; 11 - connection end; 12 - gas source end; 2 - connection part; 21 - connection section; 22 - connection guiding conical surface; 23 - release groove; 3 - tightening strip; 31 - pipe - sticking end; 32 - wedge - shaped pipe - sticking section; 33 - tightening operation end; 34 - tightening ratchet teeth; 35 - tightening ratchet pawl; 36 - clamping force - applying spring; 37 - unlocking operation part; 38 - sealing protrusion; 4 - spherical protrusion; 41 - spherical joint seat; 42 - fixed - angle bolt; 9 - hose. Detailed implementation manners

[0022] The following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. In the following detailed description, only some exemplary embodiments of the present utility model are described by way of illustration. It is undoubtedly that those of ordinary skill in the art can recognize that, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the drawings and the description are illustrative in nature and are not used to limit the protection scope of the claims.

[0023] As Figures 1 to 6 As commonly shown, the quick - coupling for inflating a hose includes an inflation nozzle 1 arranged in a tubular shape. One end of the inflation nozzle 1 is a connection end 11 and the other end is a gas source end 12. The connection end 11 is used for the hose 9 to be sleeved, and the gas source end 12 is used for connecting to a high - pressure gas source in a pipeline.

[0024] A plurality of connection parts 2 are arranged in sequence along the axial direction on the outer peripheral surface of the inflation nozzle 1. The outer diameter of the connection part 2 gradually increases from the connection end 11 to the gas source end 12. The plurality of connection parts 2 are provided to adapt to hoses 9 with different inner diameters for connection use, and gradually thickening from the connection end 11 to the gas source end 12 is conducive to the hose 9 being smoothly sleeved to the appropriate connection part 2.

[0025] Preferably, the connection part 2 includes a connection section 21. The connection section 21 is a cylindrical surface, which is also the main part for sealing and fitting with the hose 9. A connection guiding conical surface 22 is provided at one end of the connection section 21 close to the connection end 11. Through this sectional setting, while facilitating good sealing, it is conducive to the hose 9 being smoothly sleeved. Preferably, a release groove 23 is provided between the connection section 21 and the adjacent connection guiding conical surface 22. The release groove 23 makes it less likely for the hose 9 to be blocked by the connection part 2 with a smaller outer diameter during the process of the hose 9 being sleeved onto the inflation nozzle 1, and when the hose 9 reaches the appropriate connection part 2, its end face can cross the corresponding connection section 21, thereby facilitating better connection.

[0026] A tightening strip 3 for tightening the hose 9 at one of the connecting pipe parts 2 is wrapped around the outside of the inflation nozzle 1, one end of the tightening strip 3 is a tube-contacting end 31 and the other end is a tightening operating end 33, the tightening operating end 33 bypasses the tube-contacting end 31 and is located outside the tube-contacting end 31; a plurality of tightening ratchets 34 are arranged on the outer surface of the tightening strip 3, and a ratchet assembly for clamping the tightening ratchet 34 is provided on the tube-contacting end 31 at the outside of the tightening operating end 33.

[0027] After the hose 9 is sleeved, by pulling the tightening operation end 33, the space inside the ring formed by the tightening strip 3 is reduced, thereby achieving the purpose of tightening the hose 9. After tightening, the anti-retraction effect of the ratchet assembly and the tightening ratchet 34 enables the tightening strip 3 to maintain the tightening effect. Preferably, the tube-sticking end 31 is integrally provided with a wedge-shaped tube-sticking section 32 extending between the tightening operation end 33 and the hose 9, and the wedge-shaped tube-sticking section 32 allows the tightening strip 3 to finally form a complete circumferential surface on the inner side surface, further promoting the realization of good connection sealing.

[0028] The pawl assembly of this embodiment includes a clamping pawl 35 swingably mounted on the tube-applying end 31 and located outside the clamping operation end 33. A clamping force spring 36 is provided between the clamping pawl 35 and the tube-applying end 31. The clamping pawl 35 is connected to a clamping release operation portion 37. When the clamping operation end 33 is pulled to clamp the hose 9, the clamping pawl 35 does not affect the pulling. When the clamping operation end 33 is pulled to the end, as shown in FIG. Figure 2 As shown, the clamping pawl 35 is clamped on one of the clamping ratchet teeth 34 to prevent retreat. The clamping force spring 36 provides elastic force from the clamping pawl 35 to the clamping ratchet teeth 34, which can be implemented by a torsion spring or the like. Figure 3 As shown, by pressing the unlocking operation portion 37, the tightening pawl 35 withdraws from the tightening ratchet 34, the clamping effect disappears, and the tightening operation end 33 can move freely, thereby facilitating relaxation, and the hose 9 is easily removed from the inflation nozzle 1.

[0029] Preferably, if Figure 4As shown, two sealing protrusions 38 are provided on the inner side of the tightening strip 3, and the spacing between the two sealing protrusions 38 is not less than the length of the pipe section 21. In the case where the two sealing protrusions 38 are provided, when the hose 9 is tightened on the corresponding pipe section 21 by the tightening strip 3, the two sealing protrusions 38 are located at the two ends of the pipe section 21, so that at least the hose 9 is tightly fitted with the two ends of the pipe section 21 to achieve a good connection and sealing effect. This is more suitable for the case where the inner diameter of the hose 9 is slightly larger than the outer diameter of the appropriate pipe section 21. At this time, the release groove 23 is a space where one of the sealing protrusions 38 releases the hose 9 from being squeezed inward when tightening. At the same time, the setting of the release groove 23 and the setting of the sealing protrusion 38 enable the tightening strip 3 to temporarily hook the sealing protrusion 38 at the position of the release groove 23 when there is no hose 9 on the inflation nozzle 1, so as to facilitate the subsequent rapid tightening.

[0030] In addition, if Figure 1 , Figure 5 and Figure 6 As shown, the inflatable nozzle 1 of this embodiment is provided with a spherical protrusion 4 between the gas source end 12 and the connecting pipe portion 2, and the spherical protrusion 4 is connected to a ball joint seat 41, and the ball joint seat 41 is provided with a fixed angle bolt 42 for abutting against the spherical protrusion 4. Through the provision of the ball joint seat 41, this embodiment is conveniently installed on equipment such as hose 9 processing equipment, and the ball joint between the inflatable nozzle 1 and the ball joint seat 41 allows the angle to be flexibly adjusted, which is convenient for adapting to the angle of manual socketing for adaptive use.

[0031] In use of this embodiment, the ball joint seat 41 is used to mount on a certain device, and the angle of the inflation nozzle 1 is adjusted by the ball joint. After adjustment, it is fastened with the fixed-angle bolt 42. On the inflation nozzle 1, the gas source end 12 is connected to a high-pressure gas source. The tightening strip 3 is pre-released to a state where the inner ring diameter is larger. Manually sleeve the starting end of the hose 9 from the connection end 11 towards the inflation nozzle 1. Of course, the sleeving process passes through the inner space of the tightening strip 3 until the hose 9 reaches the connection part 2 where it cannot be sleeved any further and stops. The starting end of this hose 9 is at the connection part 2 of the connection part 2 near the connection end 11 where it cannot be sleeved any further, and this connection part 2 is the appropriate connection part 2 described in this embodiment. Move the tightening strip 3 outside this appropriate connection part 2 and pull the tightening operation end 33 to tighten. If the inner diameter of the hose 9 is equal to or slightly smaller than the outer diameter of this appropriate connection part 2, the tightening strip 3 can achieve reliable sealing by using the increased tightening effect. If the inner diameter of the hose 9 is larger than the outer diameter of this appropriate connection part 2, then two sealing protrusions 38 on the tightening strip 3 are used to tighten the hose 9 at both ends of the corresponding connection section 21, so that reliable sealing is achieved at least at the positions of these two sealing protrusions 38. Thus, high-pressure gas can be supplied into the well-connected and sealed hose 9, and a good air pressure can always be maintained inside the hose 9, which is beneficial to reducing the bending of the pipe body during the pre-coiling process. When the hose 9 is cut to a fixed length and the starting end of the hose 9 needs to be removed, by pressing the unlocking operation part 37, the engagement between the tightening pawl 35 and the tightening ratchet 34 is released, and the tightening strip 3 can be easily and quickly relaxed, and the hose 9 can be directly removed. The disassembly and assembly of the hose 9 are very convenient and fast.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Hose inflation quick connector, characterized by: The air-inflating nozzle comprises an air-inflating nozzle which is arranged in a tubular shape, one end of the air-inflating nozzle is a connecting pipe end and the other end is an air source end; a plurality of connecting pipe parts which are arranged in sequence along the axial direction are provided on the outer circumferential surface of the air-inflating nozzle, the outer diameter of the connecting pipe part is gradually increased along the connecting pipe end toward the air source end, a tightening strip which is used to tighten the hose at one of the connecting pipe parts is connected around the outside of the air-inflating nozzle, one end of the tightening strip is a tube-contacting end and the other end is a tightening operation end, the tightening operation end bypasses the tube-contacting end and is located outside the tube-contacting end; a plurality of tightening ratchets are arranged on the outer surface of the tightening strip, and a ratchet assembly which is used to clamp the tightening ratchets is provided on the tube-contacting end and located outside the tightening operation end.

2. The hose inflation quick connector according to claim 1, characterized in that: The pawl assembly includes a clamping pawl that is swingably mounted on the tube-attaching end and located outside the clamping operation end, a clamping force spring is provided between the clamping pawl and the tube-attaching end, and the clamping pawl is connected to a clamping release operation part.

3. The hose inflation quick connector according to claim 1, characterized in that: The pipe-sticking end is integrally provided with a wedge-shaped pipe-sticking section extending between the clamping operation end and the hose.

4. The hose inflation quick connector according to claim 1, characterized in that: The connecting pipe portion comprises a connecting pipe section, and one end of the connecting pipe section close to the connecting pipe end is provided with a connecting pipe guiding cone surface.

5. The hose inflation quick connector according to claim 4, characterized in that: A release groove is provided between the connecting pipe section and the adjacent connecting pipe guide cone surface.

6. The hose inflation quick connector according to claim 5, characterized in that: Two sealing protrusions are arranged on the inner side surface of the tightening strip, and the distance between the two sealing protrusions is not less than the length of the connecting pipe section.

7. The hose inflation quick connector according to claim 1, characterized in that: A spherical protrusion is provided on the inflation nozzle between the gas source end and the connecting pipe portion, the spherical protrusion is connected to a ball joint seat, and a fixed-angle bolt for abutting against the spherical protrusion is provided on the ball joint seat.

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