Waterproof hose connector

Abstract

The utility model discloses a waterproof hose connector which comprises a connecting pipe body, a connector is formed at each of the two ends of the connecting pipe body, an annular bag cushion is fixed in the middle of the outer wall of each connector, and sealing convex rings are arranged on the outer wall of each annular bag cushion in a distributed mode. The metal hose connector has the advantages that when the metal hose connector is used, on one hand, the clamping plates can be close to the sealing soft sleeve provided with the metal hose by rotating the two T-shaped screw rods respectively, so that the metal hose is reliably limited at the connector under clamping of the clamping plates, and the butt joint installation efficiency between the metal hoses is improved; on the other hand, reliable sealing between the outer wall of the connector and the inner wall of the metal hose can be achieved under the cooperation of the one-way pressing bag, the air channel, the annular bag cushion and the sealing convex ring, it is ensured that the waterproof hose connector can be suitable for butt joint installation between metal hoses with different inner diameters, and the use flexibility of the waterproof hose connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof hose joints, in particular to a waterproof hose joint. Background Art

[0002] Pipe fittings are parts that connect pipes in hydraulic systems or install pipes on hydraulic components. They are a general term for connectors that can be installed and removed in fluid passages, mainly including: welding type, ferrule type, crimping type and flaring type. Waterproof hose fittings are required when connecting two metal hoses.

[0003] At present, the waterproof hose connector used for connecting two metal hoses is mainly composed of a connecting tube body, a threaded joint with a locking nut fixed at one end of the connecting tube body, and a connecting head with a locking bolt fixed at the other end of the connecting tube body. Although the waterproof hose connector of the above structure can realize the convenient connection between the two metal hoses, on the one hand, the waterproof hose connector of the above structure needs to realize the docking and fixation between the two metal hoses by screwing the locking nut at one end of the connecting tube body and the three locking bolts at the other end of the connecting tube body when in use. The locking process is relatively cumbersome, which makes the docking and installation efficiency between the metal hoses relatively low. On the other hand, since the outer diameters of the two connecting heads on the waterproof hose connector of the above structure are certain, the waterproof hose structure of this structure can only be used for sealing connection of metal hoses with specific inner diameters when in use. When the inner diameter of the metal hose is larger than the outer diameter of the connecting head, the waterproof hose connector of the above structure is no longer applicable, which makes the flexibility of use of the waterproof hose connector poor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a waterproof hose connector which can realize quick docking and installation between metal hoses through two screwing operations, has high docking and installation efficiency, and can be used for convenient sealing connection between metal hoses with different inner diameters in response to the current status of the prior art.

[0006] (II) Technical solution

[0007] The utility model is implemented through the following technical scheme: the utility model proposes a waterproof hose joint, including a connecting tube body, a connecting head is respectively formed at both ends of the connecting tube body, an annular bag pad is fixed in the middle of the outer wall of the connecting head, and sealing convex rings are arranged in a row on the outer wall of the annular bag pad, an airway connected to the annular bag pad is opened in the connecting tube body, a one-way pressure bag connected to the airway is installed in the middle of the upper end of the connecting tube body, a sealing soft sleeve is fixed on the connecting tube body on the outside of the connecting head, two T-screws are symmetrically installed on both sides of the connecting tube body, each of the T-screws is penetrated by a connecting plate, two guide columns are symmetrically fixed on the connecting tube body on both sides of the T-screw, and two ends of the connecting plate are respectively connected to a clamping plate facing the connecting head.

[0008] Furthermore, a pressure relief valve is installed at the air outlet of the one-way pressure bag, and a one-way air inlet valve is provided at the air inlet of the one-way pressure bag.

[0009] By adopting the above technical solution, the pressure relief valve can discharge the gas in the annular bag cushion according to actual use needs to restore the connecting head to its original state, thereby meeting the convenience of connecting the connecting head to a metal hose with an adapted inner diameter.

[0010] Furthermore, the end of the connector facing away from the connector pipe body is a conical structure, and both the connector and the connector pipe body are made of malleable cast iron.

[0011] By adopting the above technical solution, such a design can ensure the convenient insertion of the metal hose on the connecting head.

[0012] Furthermore, the sealing soft sleeve is bonded to the connecting pipe body, and the sealing soft sleeve is made of sealing rubber.

[0013] By adopting the above technical solution, the sealing soft sleeve can increase the sealing performance of the metal hose after installation.

[0014] Furthermore, the annular bladder pad is bonded to the connector, and the sealing convex ring is formed on the annular bladder pad.

[0015] By adopting the above technical solution, when the inner diameter of the metal hose to be connected is larger than the outer diameter of the connector, reliable sealing between the connector and the inner wall of the metal hose can be achieved by blowing air into the annular bag cushion.

[0016] Furthermore, the T-screw is rotatably connected to the connecting pipe body, and the T-screw is threadedly connected to the connecting plate.

[0017] By adopting the above technical solution, rotating the T-screw can move the connecting plate and the clamping plate closer to the connecting head under the action of the guide column, thereby achieving rapid clamping of the metal hose and ensuring rapid docking and installation between the metal hoses.

[0018] Furthermore, the connecting plate is bonded to the clamping plate, the clamping plate is an arc-shaped structure, and the guide column passes through the connecting plate and is slidably connected to the connecting plate.

[0019] By adopting the above technical solution, the connecting plate can be easily moved toward the connecting pipe body under the action of the guide column.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In order to solve the problem that the waterproof hose connector currently used for docking two metal hoses mainly consists of a connecting tube body, a threaded joint with a locking nut fixed at one end of the connecting tube body, and a connecting head with a locking bolt fixed at the other end of the connecting tube body, although the waterproof hose connector of the above structure can realize the convenient connection between the two metal hoses, on the one hand, the waterproof hose connector of the above structure needs to realize the docking and fixation between the two metal hoses by screwing the locking nut at one end of the connecting tube body and the three locking bolts at the other end of the connecting tube body when in use, and the locking process is relatively cumbersome, thereby making the docking and installation efficiency between the metal hoses relatively low, and on the other hand, since the outer diameters of the two connecting heads on the waterproof hose connector of the above structure are fixed, the waterproof hose structure of this structure can only be docked when in use. The metal hose with a specific inner diameter is used for sealing connection. When the inner diameter of the metal hose is larger than the outer diameter of the connector, the waterproof hose connector of the above structure is no longer applicable, which makes the waterproof hose connector less flexible to use. When in use, the utility model can, on the one hand, respectively rotate the two T-screws to realize the clamping plate approaching the sealing soft sleeve on which the metal hose is installed, so that the metal hose can be reliably limited at the connector under the clamping of the clamping plate, thereby improving the efficiency of the docking installation between the metal hoses; on the other hand, with the cooperation of the one-way pressure bag, the airway, the annular bag pad and the sealing convex ring, a reliable seal between the outer wall of the connector and the inner wall of the metal hose can be achieved, ensuring that the waterproof hose connector can be suitable for the docking installation between metal hoses with different inner diameters, thereby improving the flexibility of the waterproof hose connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a waterproof hose connector described in the utility model;

[0024] Figure 2It is a top view of a waterproof hose connector described in the utility model;

[0025] Figure 3 It is a main cross-sectional view of a connecting pipe body, a connecting head and a sealing soft sleeve in a waterproof hose connector described in the utility model;

[0026] Figure 4 The utility model is a waterproof hose connector Figure 3 Enlarged view of point A in the middle.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. One-way pressure bag; 2. Connecting tube body; 3. Sealing soft sleeve; 4. Connecting head; 5. Guide column; 6. T-screw; 7. Connecting plate; 8. Clamping plate; 9. Pressure relief valve; 10. Airway; 11. Annular bag cushion; 12. Sealing convex ring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] like Figure 1-Figure 4 As shown, a waterproof hose connector in this embodiment includes a connecting tube body 2, and a connecting head 4 is formed at each end of the connecting tube body 2. An annular bag pad 11 is fixed in the middle of the outer wall of the connecting head 4, and sealing convex rings 12 are arranged in a row on the outer wall of the annular bag pad 11. When the inner diameter of the metal hose to be connected is larger than the outer diameter of the connecting head 4, a reliable seal between the connecting head 4 and the inner wall of the metal hose can be achieved by blowing air into the annular bag pad 11. An airway 10 connected to the annular bag pad 11 is opened in the connecting tube body 2, and a one-way pressure bag 1 connected to the airway 10 is installed in the middle of the upper end of the connecting tube body 2. A sealing soft sleeve 3 is fixed on the outside of the connecting head 4, and the sealing soft sleeve 3 can increase the sealing of the metal hose after installation. Two T-screws 6 are symmetrically installed on both sides of the connecting pipe body 2, and each T-screw 6 is penetrated by a connecting plate 7. Two guide columns 5 are symmetrically fixed on both sides of the T-screw 6 on the connecting pipe body 2, and both ends of the connecting plate 7 are respectively connected to a clamping plate 8 facing the connecting head 4. By rotating the T-screw 6, the connecting plate 7 and the clamping plate 8 can be moved closer to the connecting head 4 under the action of the guide column 5, thereby realizing rapid clamping of the metal hose and ensuring rapid docking and installation between the metal hoses.

[0031] like Figure 1-Figure 4As shown, in this embodiment, a pressure relief valve 9 is installed at the air outlet of the one-way pressure bag 1, and the air inlet of the one-way pressure bag 1 is equipped with a one-way air inlet valve. The pressure relief valve 9 can discharge the gas in the annular bag cushion 11 according to actual use needs to restore the connector 4 to its original state, so as to meet the convenient connection between the connector 4 and the metal hose with an adapted inner diameter. The end of the connector 4 facing away from the connecting pipe body 2 is a conical structure, and the connector 4 and the connecting pipe body 2 are both made of malleable cast iron. This design can ensure the convenient insertion of the metal hose on the connector 4, and the sealing soft sleeve 3 is bonded to the connecting pipe body 2, and the sealing soft sleeve 3 is made of sealing rubber.

[0032] like Figure 1-Figure 4 As shown, in this embodiment, the annular bag pad 11 is bonded to the connecting head 4, the sealing convex ring 12 is formed on the annular bag pad 11, the T-screw 6 is rotatably connected to the connecting tube body 2, the T-screw 6 is threadedly connected to the connecting plate 7, the connecting plate 7 is bonded to the splint 8, the splint 8 is an arc-shaped structure, the guide column 5 passes through the connecting plate 7 and is slidably connected to the connecting plate 7, and under the action of the guide column 5, the connecting plate 7 can be ensured to move conveniently toward the connecting tube body 2.

[0033] The specific implementation process of this embodiment is as follows: when in use, first insert the metal hose to be connected to the connecting head 4, and then rotate the T-screw 6 to achieve the rapid approach of the connecting plate 7 and the clamping plate 8 to the connecting head 4, so that the metal hose can be quickly connected and installed by twisting twice. When the inner diameter of the metal hose is larger than the outer diameter of the chain connecting head 4, the one-way pressure bag 1 can be pressed to inflate the annular bag pad 11, so that the inner wall of the metal hose can be sealed after the sealing convex ring 12 is inflated, thereby realizing convenient connection between metal hoses with different inner diameters, so that the flexibility of use of the waterproof hose connector is improved.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof hose connector, Features: The invention comprises a connecting tube body (2), wherein two ends of the connecting tube body (2) are respectively formed with a connecting head (4), an annular bag cushion (11) is fixed in the middle of the outer wall of the connecting head (4), and sealing convex rings (12) are arranged in a row on the outer wall of the annular bag cushion (11), an airway (10) connected to the annular bag cushion (11) is opened in the connecting tube body (2), a one-way pressure bag (1) connected to the airway (10) is installed in the middle of the upper end of the connecting tube body (2), a sealing soft sleeve (3) is fixed on the connecting tube body (2) on the outer side of the connecting head (4), two T-shaped screws (6) are symmetrically installed on both sides of the connecting tube body (2), each of the T-shaped screws (6) is penetrated by a connecting plate (7), two guide columns (5) are symmetrically fixed on the connecting tube body (2) on both sides of the T-shaped screw (6), and two ends of the connecting plate (7) are respectively connected to a clamping plate (8) facing the connecting head (4).

2. A waterproof hose connector according to claim 1, Features: A pressure relief valve (9) is installed at the air outlet of the one-way pressure bag (1), and a one-way air inlet valve is provided at the air inlet of the one-way pressure bag (1).

3. A waterproof hose connector according to claim 1, Features: The end of the connecting head (4) facing away from the connecting pipe body (2) is a conical structure, and the connecting head (4) and the connecting pipe body (2) are both made of malleable cast iron.

4. A waterproof hose connector according to claim 1, Features: The sealing soft sleeve (3) is bonded to the connecting pipe body (2), and the sealing soft sleeve (3) is made of sealing rubber.

5. A waterproof hose connector according to claim 1, Features: The annular bag cushion (11) is bonded to the connecting head (4), and the sealing convex ring (12) is formed on the annular bag cushion (11).

6. A waterproof hose connector according to claim 1, Features: The T-shaped screw rod (6) is rotationally connected to the connecting pipe body (2), and the T-shaped screw rod (6) is threadedly connected to the connecting plate (7).

7. The waterproof hose connector according to claim 1, Features: The connecting plate (7) is bonded to the clamping plate (8), the clamping plate (8) is an arc-shaped structure, and the guide column (5) passes through the connecting plate (7) and is slidably connected to the connecting plate (7).

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