Connecting and sealing assembly of fire hose

Abstract

The utility model relates to the technical field of connecting and sealing assemblies, in particular to a connecting and sealing assembly of a fire hose, which comprises a first assembly, the first assembly comprises an outer pipe, an inner pipe is arranged in the outer pipe, a sealing gasket is arranged at the top of the inner pipe, and a protective sleeve is in threaded connection with the inner wall of the outer pipe. A clamping groove ring is arranged at the top of the outer pipe, a buckle and a baffle are fixedly connected to the inner wall of the clamping groove ring, balls are rotationally arranged in the outer pipe, and the inner pipe is sleeved with a bottom ring. According to the utility model, the rotating contact between the inner pipe and the outer pipe can be realized through the ball contact, the stability is better, the assembly is convenient, and meanwhile, the hoop can be covered through the threaded connection of the protective sleeve, so that the hoop is prevented from scratching the hand and the like, and the butt-joint installation of the assembly is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of connection sealing components, in particular to a connection sealing component for a fire hose. Background Art

[0002] A fire hose is a hose used to transport flame-retardant liquids such as high-pressure water or foam. 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. The metal joint is the connection and sealing component of the fire hose.

[0003] Existing fire hose metal joints are usually connected by a rotating snap-fit ​​method to facilitate quick docking. However, when connecting the fire hose, the clamp is exposed to the outside, which affects the holding of the joint. When the movement is large, there is also a risk of scratching the hands. At the same time, the rotational connection between the inner tube and the outer tube has poor stability and is prone to deformation during use, which affects the connection sealing effect. Utility Model Content

[0004] The purpose of the utility model is to provide a fire hose connection and sealing assembly to solve the problem proposed in the above-mentioned background technology that the clamp is exposed to the outside, thereby affecting the holding of the joint, and when the movement is large, it will also cause the risk of scratching the hands. At the same time, the rotational connection between the inner tube and the outer tube has poor stability and is prone to deformation during use, affecting the connection and sealing effect.

[0005] To achieve the above object, the utility model provides the following technical solution: a fire hose connection sealing assembly, comprising:

[0006] The first component comprises an outer tube, an inner tube is arranged inside the outer tube, a sealing gasket is arranged on the top of the inner tube, a protective sleeve is threadedly connected to the inner wall of the outer tube, a groove ring is arranged on the top of the outer tube, a buckle and a baffle are fixedly connected to the inner wall of the groove ring, a ball is rotatably arranged inside the outer tube, and a bottom ring is arranged on the outer sleeve of the inner tube.

[0007] Preferably, the inner diameter of the outer tube is larger than the minimum outer diameter of the inner tube, and the outer portion of the minimum outer diameter of the inner tube is provided with a hose body and a clamp, and the clamp is used for locking and positioning the hose body.

[0008] Preferably, the bottom of the outer tube is provided with an internal thread, the top of the protective sleeve is provided with an external thread, and the height of the external thread is one third of the height of the protective sleeve, and the protective sleeve is sleeved on the outside of the clamp.

[0009] Preferably, a rotating ring is provided at the bottom of the protective sleeve, and an outer wall of the rotating ring is provided with anti-slip grooves, and the diameter of the rotating ring is larger than the minimum outer diameter of the inner tube.

[0010] Preferably, the outside of the inner tube is provided with a step, and the bottom of the step is connected to a bottom ring by screws, a limiting slot is opened inside the top end of the inner tube, and a sealing gasket is provided inside the limiting slot, and the thickness of the sealing gasket is greater than the depth of the limiting slot.

[0011] Preferably, the outer wall of the inner tube step-shaped and the bottom ring close to each other is provided with an arc groove, and the inside of the arc groove is rotatably abutted with a ball, and the outer tube and the inner tube are rotatably connected via the ball.

[0012] Preferably, the first component and the second component have the same structure, a U-shaped groove is opened inside the upper surface of the groove ring, and the inner diameter of the buckle is equal to the minimum diameter inside the U-shaped groove of the groove ring, and the outer diameter of the buckle is equal to the maximum diameter inside the U-shaped groove of the groove ring, the buckle and the baffle are both provided in two groups, the inner diameter of the baffle is smaller than the maximum diameter inside the U-shaped groove of the groove ring, and the height of the buckle is equal to the depth of the U-shaped groove of the groove ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model realizes the rotational contact between the inner tube and the outer tube through ball contact, has better stability and is easy to assemble, and at the same time, through the threaded connection of the protective sleeve, the clamp can be covered to avoid scratches on the hands caused by the clamp, etc., which facilitates the docking and installation of the component.

[0014] (1) The utility model provides a protective sleeve and can adjust its position through its threaded connection, so that after the inner tube and the hose body are connected and positioned by a clamp, the position of the protective sleeve can be adjusted to cover the clamp, thereby avoiding contact between the clamp and the hand, improving the appearance while ensuring safety of use.

[0015] (2) The utility model makes the connection between the inner tube and the outer tube more stable and smoother through the contact rotation of the ball, and makes the rotation of the outer tube more stable, effectively avoiding deformation in the later stage, thereby ensuring the sealing of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 3 This is a schematic diagram of the connection state structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the outer tube of the utility model;

[0020] Figure 5 It is a schematic diagram of the overall structure of the inner tube of the utility model.

[0021] In the figure: 1. first component; 11. outer tube; 12. inner tube; 13. sealing gasket; 14. protective sleeve; 15. groove ring; 16. buckle; 17. baffle; 18. ball; 19. bottom ring; 2. second component; 3. hose body; 4. clamp. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 The utility model provides an embodiment: a fire hose connection sealing assembly, comprising:

[0024] The first component 1 includes an outer tube 11, an inner tube 12 is arranged inside the outer tube 11, a sealing gasket 13 is arranged on the top of the inner tube 12, a protective sleeve 14 is threadedly connected to the inner wall of the outer tube 11, a groove ring 15 is arranged on the top of the outer tube 11, a buckle 16 and a baffle 17 are fixedly connected to the inner wall of the groove ring 15, a ball 18 is rotatably arranged inside the outer tube 11, and a bottom ring 19 is arranged on the outer sleeve of the inner tube 12. The rotation connection between the outer tube 11 and the inner tube 12 is realized by the arrangement of the ball 18, and at the same time, the auxiliary limiting of the ball 18 is completed in conjunction with the connection of the bottom ring 19, thereby greatly improving the stability and smoothness of the rotation of the outer tube 11.

[0025] Furthermore, the inner diameter of the outer tube 11 is larger than the minimum outer diameter of the inner tube 12 , and the outer portion of the minimum outer diameter of the inner tube 12 is provided with a hose body 3 and a clamp 4 , and the clamp 4 is used for locking and positioning the hose body 3 .

[0026] Furthermore, an internal thread is provided at the bottom of the outer tube 11, and an external thread is provided at the top of the protective sleeve 14, and the height of the external thread is one-third of the height of the protective sleeve 14. The protective sleeve 14 is sleeved on the outside of the clamp 4, and a rotating ring is provided at the bottom of the protective sleeve 14, and the outer wall of the rotating ring is provided with anti-slip grooves, and the diameter of the rotating ring is larger than the minimum outer diameter of the inner tube 12. Through the setting of the protective sleeve 14, the clamp 4 can be covered by its displacement, thereby avoiding the exposure of the clamp 4 and then avoiding its contact with the hand, thereby improving the aesthetics while ensuring safety of use.

[0027] Furthermore, the outer part of the inner tube 12 is provided with a step, and the bottom of the step is connected to the bottom ring 19 by screws, a limiting groove is provided inside the top end of the inner tube 12, and a sealing gasket 13 is provided inside the limiting groove, the thickness of the sealing gasket 13 is greater than the depth of the limiting groove, and the outer wall on the side where the step of the inner tube 12 and the bottom ring 19 are close to each other is provided with an arc groove, and the inner part of the arc groove is rotatably abutted with a ball 18, the outer tube 11 and the inner tube 12 are rotatably connected by the ball 18, and the mutual contact between the inner tube 12 and the bottom ring 19 can complete the auxiliary limiting of the ball 18, so that the ball 18 rolls around the inner tube 12 and the bottom ring 19. The annular structure greatly facilitates the rotation of the outer tube 11.

[0028] Furthermore, the first component 1 and the second component 2 have the same structure, a U-shaped groove is opened inside the upper surface of the groove ring 15, and the inner diameter of the buckle 16 is equal to the minimum diameter inside the U-shaped groove of the groove ring 15, and the outer diameter of the buckle 16 is equal to the maximum diameter inside the U-shaped groove of the groove ring 15, and the buckle 16 and the baffle 17 are both provided with two groups, the inner diameter of the baffle 17 is smaller than the maximum diameter inside the U-shaped groove of the groove ring 15, and the height of the buckle 16 is equal to the depth of the U-shaped groove of the groove ring 15. Through the symmetrical insertion of the first component 1 and the second component 2, the groove ring 15, the buckle 16 and the baffle 17 can be symmetrically snap-connected.

[0029] Working principle: The hose body 3 and the clamp 4 used in this application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here. When the utility model is in use, the groove ring 15, the buckle 16 and the baffle 17 in the first component 1 and the second component 2 are arranged so that the three are connected and engaged with each other, and the sealing gasket 13 is squeezed and connected, so that the sealing connection can be completed through the first component 1 and the second component 2.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fire hose connection sealing assembly, characterized in that: include: A first component (1), the first component (1) comprises an outer tube (11), an inner tube (12) is arranged inside the outer tube (11), a sealing gasket (13) is arranged on the top of the inner tube (12), a protective sleeve (14) is threadedly connected to the inner wall of the outer tube (11), a groove ring (15) is arranged on the top of the outer tube (11), a buckle (16) and a baffle (17) are fixedly connected to the inner wall of the groove ring (15), a ball (18) is rotatably arranged inside the outer tube (11), and a bottom ring (19) is sleeved on the outside of the inner tube (12).

2. A fire hose connection sealing assembly according to claim 1, characterized in that: The inner diameter of the outer tube (11) is greater than the minimum outer diameter of the inner tube (12), and the outer portion of the minimum outer diameter of the inner tube (12) is provided with a hose body (3) and a clamp (4), and the clamp (4) is used for locking and positioning the hose body (3).

3. A fire hose connection sealing assembly according to claim 1, characterized in that: The bottom of the outer tube (11) is provided with an internal thread, the top of the protective sleeve (14) is provided with an external thread, and the height of the external thread is one third of the height of the protective sleeve (14), and the protective sleeve (14) is sleeved on the outside of the clamp (4).

4. A fire hose connection sealing assembly according to claim 1, characterized in that: A rotating ring is arranged at the bottom of the protective sleeve (14), and an anti-slip pattern is arranged on the outer wall of the rotating ring, and the diameter of the rotating ring is greater than the minimum outer diameter of the inner tube (12).

5. A fire hose connection sealing assembly according to claim 1, characterized in that: The outer portion of the inner tube (12) is provided with a step shape, and the bottom of the step shape is connected to a bottom ring (19) via screws. A limit slot is provided inside the top end of the inner tube (12), and a sealing gasket (13) is provided inside the limit slot. The thickness of the sealing gasket (13) is greater than the depth of the limit slot.

6. A fire hose connection sealing assembly according to claim 5, characterized in that: The outer wall of the inner tube (12) on the side where the step shape and the bottom ring (19) are close to each other is provided with an arc groove, and a ball (18) is rotatably abutted inside the arc groove, and the outer tube (11) and the inner tube (12) are rotatably connected via the ball (18).

7. A fire hose connection sealing assembly according to claim 5, characterized in that: The first component (1) and the second component (2) have the same structure. A U-shaped groove is provided inside the upper surface of the groove ring (15). The inner diameter of the buckle (16) is equal to the minimum diameter inside the U-shaped groove of the groove ring (15). The outer diameter of the buckle (16) is equal to the maximum diameter inside the U-shaped groove of the groove ring (15). The buckle (16) and the baffle (17) are both provided in two groups. The inner diameter of the baffle (17) is smaller than the maximum diameter inside the U-shaped groove of the groove ring (15). The height of the buckle (16) is equal to the depth of the U-shaped groove of the groove ring (15).

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