Reel water pipe valve linked switching mechanism and fire-fighting reel

Abstract

The invention relates to a reel water pipe valve linkage switch mechanism and a fire-fighting reel, the reel water pipe valve linkage switch mechanism comprises a reel joint, the reel joint comprises a shaft pipe which can be rotatably connected with a reel body around a first shaft, and a water inlet connecting pipe which is formed by bending and extending from one end part of the shaft pipe to one side and can be connected with a water inlet pipe; a valve body is rotationally connected in the water inlet connecting pipe through a second shaft, the driving fluted disc is used for being fixed to the reel body and takes the first shaft as the center of a circle where the driving fluted disc is located, the follow-up fluted disc is arranged on the outer side of the water inlet connecting pipe and fixed to the outer end of the second shaft, and the follow-up fluted disc can be matched with the driving fluted disc in a meshed mode and takes the second shaft as the center of the circle where the follow-up fluted disc is located. When the reel body rotates relative to the reel connector, the driving fluted disc drives the follow-up fluted disc to rotate, so that the valve body is controlled to rotate to achieve opening or closing of the valve, the structure is simple, maintenance is convenient, a user can operate the valve easily, and the user can conduct self-rescue type fire extinguishing in the first time before a firefighter arrives in a fire disaster.

Description

Technical Field

[0001] The invention belongs to the field of fire fighting equipment, and in particular relates to a reel water pipe valve linkage switch mechanism and a fire fighting reel. Background Art

[0002] Fire hose reels are usually installed on buildings and are used by users to extinguish fires by themselves before firefighters arrive. They usually include a reel joint connected to a water inlet pipe and a reel winding. The reel winding includes a reel body that is rotatably sleeved on the reel joint shaft tube and rotates around a first axis, and a water outlet joint that is sealed and sleeved on the reel joint shaft tube and can also rotate around the first axis. One end of the water outlet pipe is sealed and fixed on the water outlet joint. When not in use, the water outlet pipe is wound around the reel body of the reel winding and stored in the wall of the building.

[0003] In the prior art, some valves are set on the water inlet pipe, which require the user to manually open and close the water. Since fire hoses are rarely used in real life, when a fire occurs in an emergency, the operator will immediately pull the water outlet pipe off the reel winding, but will not think of or know to open the valve on the water inlet pipe at the same time, but will directly pull the water outlet pipe to the fire source, which will inevitably fail to spray water, thereby delaying rescue time.

[0004] Some also have a water shut-off and control mechanism between the reel joint and the water outlet joint. For example, patent authorization announcement number CN210044746 U discloses a fire reel that can automatically shut off and control water. Its water shut-off and control mechanism includes a positioning sleeve fixed in the cavity of the rocker arm joint (reel joint), a guide shaft group inserted in the positioning sleeve and threadedly matched with it, a winding box joint (water outlet joint) radially extending inward to form a retaining ring, and a rubber plug fixed on the guide shaft group and matched with the retaining ring. The guide shaft group can only be slid along the axis of the horizontal axis and set in the cavity of the winding box joint. The guide shaft group rotates forward or backward synchronously with the winding box joint (water outlet joint), so as to rotate with the positioning sleeve thread, and move axially relative to the winding box joint, control the rubber plug and the retaining ring to move away from or conflict, that is, control the water path to open or close. However, in actual use, the control of this guide shaft group and the positioning sleeve through threaded matching is slow, and it is usually necessary to pull the water outlet pipe until the reel winding rotates 3 circles relative to the reel joint to allow the guide shaft group to move a sufficient distance to control the water path to open or close.

[0005] Therefore, it is necessary to design a reel water pipe valve linkage switch mechanism and a fire reel that can respond sensitively and control the opening or closing of the water pipe valve during the operation of the water outlet pipe. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a reel water pipe valve linkage switch mechanism.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a reel water pipe valve linkage switch mechanism, including a reel joint, the reel joint including an axis tube that can be rotatably connected to the reel body around a first axis, a water inlet pipe connected to a water inlet pipe formed by extending and bending one end of the axis tube to one side, a valve body is rotatably connected to the water inlet pipe via a second axis, and also includes a driving gear disc fixed on the reel body and taking the first axis as the center of a circle, a follower gear disc arranged on the outside of the water inlet pipe and fixed on the outer end of the second axis, the follower gear disc can mesh with the driving gear disc and take the second axis as the center of a circle, when the reel body rotates relative to the reel joint, the driving gear disc drives the follower gear disc to rotate, thereby controlling the rotation of the valve body to realize valve opening or closing.

[0008] In certain embodiments, the follower gear disk is a circular sector-shaped gear disk with teeth evenly distributed on the outer edge.

[0009] In certain embodiments, the first and last teeth of the follower gear plate are respectively movable spring teeth that can be elastically retracted.

[0010] In certain embodiments, of the two tooth surfaces of each movable spring tooth, the tooth surface away from the adjacent tooth is a resistance slope surface for facilitating resistance against the tooth moved from the driving toothed disc, thereby causing the movable spring tooth to overcome the elastic force and retract.

[0011] In certain embodiments, each of the movable spring teeth is respectively slidably disposed on the follower toothed disc along the radial direction of a circle with the second axis as the center, and a movable spring tooth spring is disposed between the bottom of the movable spring tooth and the follower toothed disc.

[0012] In certain embodiments, with the second axis as an endpoint, the angle between the first and last two movable spring teeth is 90°.

[0013] In certain embodiments, the valve body located in the water inlet connecting pipe and fixed to the inner end of the second shaft is a ball valve.

[0014] In certain embodiments, a limiting mechanism for limiting the rotation angle of the follower gear disc is provided on the water inlet pipe.

[0015] In some embodiments, the driving toothed disc is a circular toothed disc with teeth evenly distributed on the outer edge, and is fixed to the outer surface of the reel body.

[0016] Another technical problem to be solved by the present invention is to provide a fire hose reel.

[0017] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fire reel, comprising the reel water pipe valve linkage switch mechanism in any one of the above embodiments, and also including a reel winding rotatably arranged on the shaft tube around the first axis, the reel winding including the reel body rotatably sleeved on the shaft tube, the drive gear disc is fixed on the reel body, and the first axis is parallel to the second axis.

[0018] The scope of the present invention is not limited to the technical solutions formed by a specific combination of the above technical features, but also includes other technical solutions formed by any combination of the above technical features or their equivalent features. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in this application.

[0019] Due to the application of the above-mentioned technical scheme, the present invention has the following advantages compared with the prior art: the reel water pipe valve linkage switch mechanism of the present embodiment utilizes the reel body driven by the process of pulling out or retracting the water outlet pipe as the driving force source, and fixes the driving gear plate on the reel body. Through the meshing cooperation of the driving gear plate and the follower gear plate, the second shaft and the valve body fixed on the second shaft are directly controlled to rotate, and the valve is quickly opened or closed. The structure is simple, maintenance is convenient, and the user operation is simple, which helps the user to realize the first-time self-rescue fire extinguishing before the firefighters arrive in the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 It is the side view of the fire hose reel; Attached Figure 2 For attachment Figure 1 Schematic diagram of the K direction (partial cutaway of the reel joint); Attached Figure 3 For attachment Figure 2 A magnified schematic diagram of the linkage switch mechanism of the reel water pipe valve at center A (valve closed state); Attached Figure 4 This is a schematic diagram of the linkage switch mechanism of the reel water pipe valve (valve open state); Among them: 1. reel joint; 1a. shaft tube; 1b. water inlet pipe; 11. limit platform; 2. driving gear plate; 3. follower gear plate; 31. movable spring tooth; 31a. resistance slope; 32. movable spring tooth spring; 4. reel winding; 41. reel body; 5. rocker arm; 6. water inlet pipe; 7. water outlet pipe; X1. first axis; X2. second axis. DETAILED DESCRIPTION

[0021] As shown in the accompanying drawings, a fire hose reel includes a rocker arm 5 rotatably mounted on a wall, a reel joint 1 fixed to the end of the rocker arm 5 and having one end connected to a water inlet pipe 6, a reel winding 4 rotatably connected to the reel joint 1 around a first axis X1, a water outlet pipe 7, a spray gun fixed to the water outlet pipe 7, and also includes a reel water pipe valve linkage switch mechanism installed between the reel joint 1 and the reel body 41 of the reel winding 4.

[0022] In this embodiment, the detailed structure of the reel water pipe valve linkage switch mechanism is as follows: As attached Figure 1 As shown, the reel joint 1 includes an axle tube 1a and a water inlet pipe 1b formed by bending one end of the axle tube 1a downward and extending vertically. Figure 1 , 2 As shown, the reel body 41 is sleeved on the shaft tube 1a and can rotate around the axis of the first axis X1. The water inlet pipe 1b is connected to the water inlet pipe 6, and a ball valve is rotatably connected inside the water inlet pipe 1b through the second axis X2. The ball valve is located inside the water inlet pipe 1b, and the second axis X2 extends toward the reel body 41.

[0023] As shown in the accompanying drawings, the reel water pipe valve linkage switch mechanism includes a circular driving gear disc 2 fixed on the outer surface of the reel body 41 and taking the axis center of the first axis X1 as the center of the circle, and a circular sector-shaped follower gear disc 3 arranged on the outside of the water inlet pipe 1b and fixed on the outer end of the second axis X2. The follower gear disc 3 can be engaged with the driving gear disc 2 and takes the axis center of the second axis X2 as the center of the circle. The first axis X1 is parallel to the second axis X2.

[0024] As attached Figure 2-4 As shown, the circular driving toothed disc 2 has driving teeth evenly distributed on the outer edge. The circular sector-shaped follower toothed disc 3 has follower teeth evenly distributed on the outer edge that can mesh with the driving teeth. Figure 3 , 4 As shown in the cross-sectional diagram, the first and last teeth of the follower gear plate 3 are respectively movable spring teeth 31 that can be elastically retracted, and the second axis X2 is used as an endpoint, and the angle between the first and last two movable spring teeth 31 is 90°.

[0025] Each movable spring tooth 31 is respectively slidably arranged on the follower sprocket 3 along the radial direction of a circle with the second axis X2 as the center. A movable spring tooth spring 32 is arranged between the bottom of the movable spring tooth 31 and the follower sprocket 3, so that the movable spring tooth 31 can stably pop outward without being subjected to pressure.

[0026] Among the tooth surfaces on both sides of each movable spring tooth 31, the tooth surface away from the adjacent follower tooth is a contact slope surface 31a used to contact with the tooth moved from the driving sprocket 2, thereby causing the movable spring tooth 31 to overcome the elastic force and retract, while the other tooth surface on both sides is a tooth surface with the same shape as other follower teeth. The tooth surfaces on both sides of the movable spring tooth 31 correspond to the forward and reverse rotation of the reel body 41 respectively.

[0027] How to do it: As attached Figure 2 , 3 As shown, at this time, the ball valve of the reel water pipe valve linkage switch mechanism is already in the valve closed state. If the reel body 41 and the driving gear plate 2 continue to be rotated clockwise to reel in the water outlet pipe 7, the driving teeth on the driving gear plate 2 will move clockwise one by one, and press against the contact slope of the vertical movable spring tooth 31 in turn, causing the vertical movable spring tooth 31 to repeatedly retract and pop out until the water outlet pipe 7 is completely wound on the reel body 41.

[0028] As attached Figure 3 In the state shown, if the outlet pipe 7 is pulled outward, the reel body 41 and the driving toothed disc 2 are driven to rotate counterclockwise, and the first driving tooth moving counterclockwise is engaged with the vertical movable spring tooth 31, driving the follower toothed disc 3 to rotate clockwise until the follower toothed disc 3 rotates 90° clockwise. Figure 4 In the state shown, at this time, the ball valve of the reel water pipe valve linkage switch mechanism is already in the valve open state.

[0029] As attached Figure 4 In the state shown, at this time, if the water outlet pipe 7 continues to be pulled out, thereby driving the reel body 41 and the driving gear plate 2 counterclockwise, the driving teeth on the driving gear plate 2 will move counterclockwise one by one, and press against the contact slope of the vertical movable spring tooth 31 in turn, causing the vertical movable spring tooth 31 to repeatedly retract and pop out until the water outlet pipe 7 is completely pulled out.

[0030] As attached Figure 4 In the state shown, if the reel body 41 and the driving toothed disc 2 are rotated clockwise to reel in the water outlet pipe 7, the first driving tooth moving clockwise will mesh with the vertical movable spring tooth 31, driving the follower toothed disc 3 to rotate counterclockwise until the follower toothed disc 3 rotates 90° counterclockwise. Figure 3 In the state shown, at this time, the ball valve of the reel water pipe valve linkage switch mechanism is in the valve closing state again.

[0031] The reel water pipe valve linkage switch mechanism of the present embodiment utilizes the process of pulling out or retracting the water outlet pipe 7 to drive the rotation of the reel body 41, and uses the driving gear plate 2 fixed on the reel body 41 as a driving member. Through the tooth meshing cooperation, the follower gear plate 3 is driven to rotate 90°, and the ball valve can be controlled to rotate 90° through the second axis X2 to complete the valve opening or closing. The characteristic is that during the process of pulling out or retracting the water outlet pipe 7, the reel body 41 only needs to rotate about 90° to complete the opening or closing of the ball valve, that is, the reel water pipe valve linkage switch mechanism controls the opening and closing of the ball valve very quickly and sensitively as the water outlet pipe 7 is pulled out and retracted, and the operation is simple, so as to help the user to achieve the first-time self-rescue fire extinguishing before the firefighters arrive in the fire.

[0032] The reel water pipe valve linkage switch mechanism of the implementation scheme is located between the water inlet pipe 1b and the outer side wall of the reel body 41. It has an exposed design, a simple structure, and a clear matching status, which is easy to check and maintain.

[0033] The water inlet pipe 1b is provided with a limit mechanism for limiting the rotation angle of the follower gear plate 3. Figure 3 , 4 As shown, the limiting mechanism is a horizontal limiting platform 11 fixed on the water inlet pipe 1b and located below the circular sector-shaped follower gear plate 3, thereby limiting the circular sector-shaped follower gear plate 3 to rotate only within a range of 90°.

[0034] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A reel water pipe valve linkage switch mechanism, comprising a reel connector (1), characterized in that: The reel joint (1) comprises an axial tube (1a) rotatably connected to a reel body (41) around a first axis (X1), and a water inlet pipe (1b) formed by extending from one end of the axial tube (1a) to one side and connected to a water inlet pipe (6), wherein a valve body is rotatably connected to the water inlet pipe (1b) via a second axis (X2). It also includes a driving toothed disc (2) fixed on the reel body (41) and having the first axis (X1) as the center of the circle, and a follower toothed disc (3) arranged on the outside of the water inlet pipe (1b) and fixed on the outer end of the second axis (X2), wherein the follower toothed disc (3) can mesh with the driving toothed disc (2) and has the second axis (X2) as the center of the circle. When the reel body (41) rotates relative to the reel joint (1), the driving gear disc (2) drives the follower gear disc (3) to rotate, thereby controlling the rotation of the valve body to open or close the valve.

2. The reel water pipe valve linkage switch mechanism according to claim 1, characterized in that: The follower gear disc (3) is a circular sector-shaped gear disc with teeth evenly distributed on the outer edge.

3. The reel water pipe valve linkage switch mechanism according to claim 1, characterized in that: The first and last two teeth of the follower gear plate (3) are respectively movable spring teeth (31) that can be elastically retracted.

4. The reel water pipe valve linkage switch mechanism according to claim 3, characterized in that: Of the two tooth surfaces of each movable spring tooth (31), the tooth surface away from the adjacent tooth is a contact slope surface (31a) that is convenient for contacting with the tooth moved up from the driving toothed disc (2), thereby causing the movable spring tooth (31) to overcome the elastic force and retract.

5. The reel water pipe valve linkage switch mechanism according to claim 3, characterized in that: Each movable spring tooth (31) is respectively arranged on the follower toothed disc (3) in a radially sliding manner along a circle with the second axis (X2) as the center, and a movable spring tooth spring (32) is arranged between the bottom of the movable spring tooth (31) and the follower toothed disc (3).

6. The reel water pipe valve linkage switch mechanism according to claim 3, characterized in that: With the second axis (X2) as an endpoint, the angle between the first and last two movable spring teeth (31) is 90°.

7. The reel water pipe valve linkage switch mechanism according to claim 6, characterized in that: The valve body located in the water inlet connecting pipe (1b) and fixed to the inner end of the second shaft (X2) is a ball valve.

8. The reel water pipe valve linkage switch mechanism according to claim 1, characterized in that: The water inlet pipe (1b) is provided with a limiting mechanism for limiting the rotation angle of the follower gear plate (3).

9. The reel water pipe valve linkage switch mechanism according to claim 1, characterized in that: The driving toothed disc (2) is a circular toothed disc with teeth evenly distributed on the outer edge, and is fixed on the outer surface of the reel body (41).

10. A fire hose reel comprising the reel water pipe valve linkage switch mechanism according to any one of claims 1 to 9, characterized in that: It also comprises a reel winding (4) rotatably arranged on the shaft tube (1a) around the first axis (X1), the reel winding (4) comprising the reel body (41) rotatably sleeved on the shaft tube (1a), the driving gear disc (2) being fixed on the reel body (41), and the first axis (X1) being parallel to the second axis (X2).

Images