Connecting device for butt joint of fire hose

Abstract

The utility model discloses a connecting device for butt joint of fire hoses, which comprises a first connector, and an inner cavity of the first connector is communicated with a first fire hose. A connecting inserting column is inserted into an inner cavity of a box body and an inner cavity of a limiting sleeve, the connecting inserting column moves to push a bevel edge clamping block to move outwards through a bevel edge of the bevel edge clamping block, the bevel edge clamping block moves to drive a moving plate to move, the moving plate moves to drive a guide sleeve to slide on the surface of a guide rod, and the guide sleeve moves to extrude a second abutting spring; when the bevel edge clamping block moves to the position of the bevel edge clamping groove, the guide sleeve, the movable plate, the pull rod, the pull plate, the handle and the bevel edge clamping block are reset through the elastic force of the first abutting spring and the second abutting spring, and the bevel edge clamping block is clamped in the bevel edge clamping groove. And the bevel edge clamping block resets and is clamped into an inner cavity of the bevel edge clamping groove, and stable butt joint is conducted on the first connector and the second connector.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hoses, in particular to a connecting device for fire hoses. Background Art

[0002] A fire hose is a flexible pipe used to transport flame-retardant liquids such as high-pressure water or foam. Traditional fire hoses are lined with rubber and wrapped with linen fabric on the outside. Advanced fire hoses are made of polymer materials such as polyurethane. There are metal joints at both ends of the fire hose, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure.

[0003] When the fire hose is docked, a fire hose docking connection device is needed. The existing fire hose docking connection device adopts a clamping method to dock the fire hose, which causes the fire hose to fall off easily at the docking point due to excessive water pressure inside the fire hose when the fire hose is in use, causing the fire hose to be unable to be used normally, thereby reducing the use effect of the fire hose. Utility Model Content

[0004] The utility model aims to provide a fire hose docking connection device, which has the advantage of being able to stably dock the fire hose, and solves the problem that the existing fire hose docking connection device uses a clamping method to dock the fire hose, resulting in the fire hose being easily detached at the docking point due to excessive water pressure inside the fire hose when the fire hose is in use, causing the fire hose to be unable to be used normally.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a fire hose docking connection device, comprising a first connecting head, the inner cavity of the first connecting head is connected to the first fire hose, a second connecting head is arranged on the top of the first connecting head, the inner cavity of the second connecting head is connected to the second fire hose, the inner cavity of the first fire hose is fixedly connected to a sealed connecting pipe, the top end of the sealed connecting pipe passes through the inner cavity of the second fire hose, the surface of the sealed connecting pipe is bonded and connected to a sealing ring, the surface of the sealing ring is in contact with the inner wall of the second fire hose, and stable docking components are arranged on both sides of the second connecting head.

[0006] As a preferred solution, the stable docking assembly includes a box body and a fixing plate, the inner side of the box body is fixedly connected to the outer side of the second connecting head, the inner side of the fixing plate is fixedly connected to the outer side of the first connecting head, the top of the inner wall of the box body is fixedly connected to the limiting sleeve, the top of the fixing plate is fixedly connected to a connecting column, the top of the connecting column passes through the inner cavity of the limiting sleeve, the outer side of the connecting column is provided with a beveled groove, the center of one side of the inner wall of the box body is fixedly connected to a first tightening spring, the inner end of the first tightening spring is fixedly connected to a moving plate, and the moving The top and bottom of the outer side of the plate are fixedly connected with a pull rod, the outer end of the pull rod passes through the outside of the box and is fixedly connected with a pull plate, the outer side of the pull plate is fixedly connected with a handle, the top and bottom of the movable plate are fixedly connected with a guide sleeve, the inner cavity of the guide sleeve is slidably connected with a guide rod, the inner end of the guide rod is fixedly connected to a limiting block, the outer end of the guide rod is fixedly connected to the inner wall of the box, the surface of the guide rod is sleeved with a second clamping spring, the inner side of the movable plate is fixedly connected with a bevel block, the inner end of the bevel block passes through the inner cavity of the bevel slot.

[0007] As a preferred solution, guide grooves are provided at the top and bottom of the inner wall of the box, the inner cavity of the guide groove is slidably connected with a guide block, and the inner side of the guide block is fixedly connected to the surface of the guide sleeve.

[0008] As a preferred solution, a first through groove is formed at the bottom of the box body, and the diameter of the inner cavity of the first through groove is larger than the diameter of the connecting column.

[0009] As a preferred solution, a second through groove is provided on the top and the bottom of the outer side of the box body, and the diameter of the inner cavity of the second through groove is larger than the diameter of the pull rod.

[0010] As a preferred solution, the inner end of the second abutting spring is fixedly connected to the surface of the guide sleeve, and the outer end of the second abutting spring is fixedly connected to the inner wall of the box body.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model inserts the connecting column into the inner cavity of the box body and the limit sleeve, and the connecting column moves through the bevel of the bevel block to push the bevel block to move outward, and the movement of the bevel block drives the moving plate to move, and the movement of the moving plate drives the guide sleeve to slide on the surface of the guide rod, and the guide sleeve moves to be squeezed toward the second tightening spring, and the moving plate moves to be squeezed toward the first tightening spring, and the movement of the moving plate drives the pull rod, the pull plate and the handle to move outward. When the bevel block moves to the position of the bevel slot, the elastic force of the first tightening spring and the second tightening spring resets the guide sleeve, the moving plate, the pull rod, the pull plate, the handle and the bevel block, and the bevel block resets and snaps into the inner cavity of the bevel slot, so as to stably connect the first connecting head and the second connecting head to prevent the first connecting head and the second connecting head from falling off, thereby achieving the advantage of stable connection of the fire hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a front view of the structure section of the utility model;

[0015] Figure 3 This is an enlarged cross-sectional view of the internal structure of the box body of the utility model.

[0016] In the figure: 1. first connecting head; 2. first fire hose; 3. second connecting head; 4. second fire hose; 5. sealing connecting pipe; 6. sealing ring; 7. stable docking assembly; 71. box body; 72. fixing plate; 73. limiting sleeve; 74. connecting column; 75. bevel slot; 76. first clamping spring; 77. moving plate; 78. pulling rod; 79. pulling plate; 710. handle; 711. guide sleeve; 712. guide rod; 713. limiting block; 714. second clamping spring; 715. bevel block; 716. guide slot; 717. guide block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0019] Embodiment 1:

[0020] See also Figure 1-Figure 3 As shown, the utility model provides a connection device for docking a fire hose, comprising a first connection head 1, the inner cavity of the first connection head 1 is connected to a first fire hose 2, a second connection head 3 is arranged on the top of the first connection head 1, the inner cavity of the second connection head 3 is connected to a second fire hose 4, a sealing connection pipe 5 is fixedly connected to the inner cavity of the first fire hose 2, the top end of the sealing connection pipe 5 passes through the inner cavity of the second fire hose 4, a sealing ring 6 is bonded and connected to the surface of the sealing connection pipe 5, the surface of the sealing ring 6 is in contact with the inner wall of the second fire hose 4, and stable docking components 7 are arranged on both sides of the second connection head 3.

[0021] Through the above technical solution, by providing the stable docking assembly 7, the first connector 1 and the second connector 3 are conveniently fastened and docked, thereby increasing the stability of the docking between the first connector 1 and the second connector 3.

[0022] Embodiment 2:

[0023] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 3 As shown, the stable docking assembly 7 is disclosed, which includes a box body 71 and a fixing plate 72. The inner side of the box body 71 is fixedly connected to the outer side of the second connector 3, the inner side of the fixing plate 72 is fixedly connected to the outer side of the first connector 1, the top of the inner wall of the box body 71 is fixedly connected to the limiting sleeve 73, the top of the fixing plate 72 is fixedly connected to a connecting column 74, the top of the connecting column 74 passes through the inner cavity of the limiting sleeve 73, and the outer side of the connecting column 74 is provided with a beveled groove 75, a first tightening spring 76 is fixedly connected to the center of one side of the inner wall of the box body 71, the inner end of the first tightening spring 76 is fixedly connected to a movable plate 77, the top and bottom of the outer side of the movable plate 77 The top and bottom of the movable plate 77 are fixedly connected with a guide sleeve 711, the inner cavity of the guide sleeve 711 is slidably connected with a guide rod 712, the inner end of the guide rod 712 is fixedly connected with a limiting block 713, the outer end of the guide rod 712 is fixedly connected to the inner wall of the box body 71, and the surface of the guide rod 712 is sleeved with a second clamping spring 714, and the inner side of the movable plate 77 is fixedly connected with a bevel block 715, and the inner end of the bevel block 715 passes through the inner cavity of the bevel slot 75.

[0024] Through the above technical solution, guide grooves 716 are provided at the top and bottom of the inner wall of the box body 71, and the inner cavity of the guide groove 716 is slidably connected with a guide block 717, and the inner side of the guide block 717 is fixedly connected to the surface of the guide sleeve 711. A first through groove is provided at the bottom of the box body 71, and the diameter of the inner cavity of the first through groove is larger than the diameter of the connecting column 74. A second through groove is provided at the top and bottom of the outer side of the box body 71, and the diameter of the inner cavity of the second through groove is larger than the diameter of the pull rod 78. The inner end of the second tightening spring 714 is fixedly connected to the surface of the guide sleeve 711, and the second tightening spring The outer end of the spring 714 is fixedly connected to the inner wall of the box body 71. By setting the guide groove 716 and the guide block 717, the guide sleeve 711 and the movable plate 77 are stabilized during movement, thereby increasing the stability of the guide sleeve 711 and the movable plate 77 during movement. By setting the first through groove, the connecting column 74 is facilitated to be inserted into and leave the inner cavity of the box body 71. By setting the second through groove, the pull rod 78 is facilitated to move. By setting the second tightening spring 714, the guide sleeve 711 is tightened by elastic force and is convenient for elastic resetting.

[0025] When the first connector 1 and the second connector 3 are connected, the sealing connecting pipe 5 and the sealing ring 6 are first inserted into the inner cavity of the second fire hose 4 to seal the gap between the first fire hose 2 and the second fire hose 4. At the same time, the connecting column 74 is inserted into the inner cavity of the box body 71 and the limiting sleeve 73, and the connecting column 74 moves through the hypotenuse of the hypotenuse block 715 to push the hypotenuse block 715 to move outward, and the hypotenuse block 715 moves to drive the moving plate 77 to move, and the moving plate 77 moves to drive the guide sleeve 711 to slide on the surface of the guide rod 712, and the guide sleeve 711 moves to squeeze the second tightening spring 714, and the guide sleeve 711 moves to drive the guide block 717 to slide in the inner cavity of the guide groove 716, and the moving plate 77 moves to squeeze the first tightening spring 76, and the moving plate 77 moves to drive the pull rod 78, the pull plate 79 and the handle 710 to move outward. When the hypotenuse block 715 moves to the position of the hypotenuse groove 75, through the first tightening spring 714, the pull plate 79 and the handle 710 are moved outward. When the locking cam 73 is in the state of being lifted up, the locking cam 730 of the locking cam 731 is in the state of being lifted up, and the locking cam 731 of the locking cam 732 is in the state of being lifted up.

[0026] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A fire hose docking connection device, comprising a first connector (1), characterized in that: The inner cavity of the first connecting head (1) is connected to a first fire hose (2); a second connecting head (3) is arranged on the top of the first connecting head (1); the inner cavity of the second connecting head (3) is connected to a second fire hose (4); a sealing connecting pipe (5) is fixedly connected to the inner cavity of the first fire hose (2); the top end of the sealing connecting pipe (5) penetrates the inner cavity of the second fire hose (4); a sealing ring (6) is bonded to the surface of the sealing connecting pipe (5); the surface of the sealing ring (6) contacts the inner wall of the second fire hose (4); and stable docking components (7) are arranged on both sides of the second connecting head (3).

2. A fire hose docking connection device according to claim 1, characterized in that: The stable docking assembly (7) comprises a box body (71) and a fixing plate (72), the inner side of the box body (71) is fixedly connected to the outer side of the second connector (3), the inner side of the fixing plate (72) is fixedly connected to the outer side of the first connector (1), the top of the inner wall of the box body (71) is fixedly connected to a limiting sleeve (73), the top of the fixing plate (72) is fixedly connected to a connecting pin (74), the top of the connecting pin (74) penetrates into the inner cavity of the limiting sleeve (73), the outer side of the connecting pin (74) is provided with a beveled slot (75), a first clamping spring (76) is fixedly connected to the center of one side of the inner wall of the box body (71), the inner end of the first clamping spring (76) is fixedly connected to a movable plate (77), the top and bottom of the outer side of the movable plate (77) are both A pull rod (78) is fixedly connected, the outer end of the pull rod (78) passes through the outer side of the box body (71) and is fixedly connected to a pull plate (79), the outer side of the pull plate (79) is fixedly connected to a handle (710), the top and bottom of the movable plate (77) are fixedly connected to guide sleeves (711), the inner cavity of the guide sleeve (711) is slidably connected to a guide rod (712), the inner end of the guide rod (712) is fixedly connected to a limiting block (713), the outer end of the guide rod (712) is fixedly connected to the inner wall of the box body (71), the surface of the guide rod (712) is sleeved with a second clamping spring (714), the inner side of the movable plate (77) is fixedly connected to a bevel clamping block (715), the inner end of the bevel clamping block (715) passes through the inner cavity of the bevel clamping groove (75).

3. A fire hose docking connection device according to claim 2, characterized in that: The top and bottom of the inner wall of the box body (71) are both provided with guide grooves (716), the inner cavity of the guide groove (716) is slidably connected to a guide block (717), and the inner side of the guide block (717) is fixedly connected to the surface of the guide sleeve (711).

4. A fire hose docking connection device according to claim 2, characterized in that: A first through groove is provided at the bottom of the box body (71), and the diameter of the inner cavity of the first through groove is greater than the diameter of the connecting plug post (74).

5. A fire hose docking connection device according to claim 2, characterized in that: A second through groove is provided at the top and the bottom of the outer side of the box body (71), and the diameter of the inner cavity of the second through groove is greater than the diameter of the pull rod (78).

6. A fire hose docking connection device according to claim 2, characterized in that: The inner end of the second holding spring (714) is fixedly connected to the surface of the guide sleeve (711), and the outer end of the second holding spring (714) is fixedly connected to the inner wall of the box body (71).

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