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

Abstract

The utility model 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 utility model belongs to the field of fire-fighting equipment, and particularly relates to a reel water pipe valve linkage switch mechanism and fire-fighting reel. BACKGROUND

[0002] The fire-fighting reel is usually installed on a building and is used for self-help fire extinguishing by a user before a fire fighter arrives at the scene of a fire. The fire-fighting reel usually comprises a reel joint connected with a water inlet pipe and a reel winding. The reel winding comprises a reel body rotating around a first shaft on a reel joint shaft pipe and a water outlet joint sealingly sleeved on the reel joint shaft pipe and also rotating around the first shaft. An end of a water outlet pipe is sealingly fixed on the water outlet joint. When not in use, the water outlet pipe is wound on the reel body of the reel winding and is stored in a wall of the building.

[0003] In the prior art, some valves are provided on the water inlet pipe and need to be manually opened or closed by a user. Since the fire-fighting reel is rarely used in real life, an operator will first pull down the water outlet pipe from the reel winding at the critical moment of a fire, but will not think of or know to open the valve on the water inlet pipe at the same time, and will directly pull the water outlet pipe to the fire source, so that water cannot be sprayed, thereby delaying the rescue time.

[0004] Some other fire-fighting reels are provided with a water control mechanism between the reel joint and the water outlet joint. For example, a fire-fighting reel capable of automatically controlling water disclosed in Patent No. CN210044746 U. The water control mechanism comprises a positioning sleeve fixed in a cavity of a rocker joint (reel joint), a guide shaft group inserted into the positioning sleeve and threadedly matched with the positioning sleeve, a rubber plug fixed on the guide shaft group and matched with the blocking ring, and the guide shaft group is only slidably arranged in the cavity of the water outlet joint along the axis of the horizontal shaft. The guide shaft group rotates synchronously with the water outlet joint (water outlet joint), and rotates in the same direction or in the opposite direction, so that the guide shaft group moves axially relative to the water outlet joint while threadedly rotating with the positioning sleeve, and controls the rubber plug to move away from or contact the blocking ring, that is, controls the water path to be opened or closed. However, in actual use, the control of the guide shaft group and the positioning sleeve through thread cooperation is slow, and usually needs to pull the water outlet pipe to rotate the reel winding relative to the reel joint by 3 turns, so as to move the guide shaft group by a sufficient distance to control the water path to be opened or closed.

[0005] Therefore, it is necessary to design a reel water pipe valve linkage switch mechanism and a fire-fighting reel capable of sensitive response and controlling the water pipe valve to be opened or closed in the process of operating the water outlet pipe. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem of providing a reel water pipe valve linkage switch mechanism.

[0007] In order to solve the above technical problems, the utility model adopts the technical scheme: a reel water pipe valve linkage switch mechanism, including reel joint, the reel joint includes with the shaft pipe that reel body can be connected with around the first shaft rotation, the water inlet pipe water inlet pipe that can be connected is formed by the shaft pipe one end portion to one side bending extension, the water inlet pipe is connected with the valve body through the second shaft rotation in, still include the drive gear disc for fixing on the reel body and with the first shaft as the center of the circle, the follow-up gear disc is arranged in the water inlet pipe outside and is fixed in the second shaft outer end portion, the follow-up gear disc can be engaged with the drive gear disc cooperation, and with the second shaft as the center of the circle, when the reel body rotates relative to the reel joint, the drive gear disc drives the follow-up gear disc rotation, thereby control the valve body rotation realizes the valve opening or the valve closing.

[0008] In certain embodiments, the follow-up gear disc is a circular sector gear disc with uniformly distributed teeth on the outer edge.

[0009] In certain embodiments, the follow-up gear disc is a circular sector gear disc with uniformly distributed teeth on the outer edge.

[0010] In certain embodiments, among the two tooth surfaces of each of the movable elastic teeth, the tooth surface away from the adjacent tooth is a collision slope surface facilitating collision with the tooth moved on the drive gear disc, thereby promoting the movable elastic tooth to overcome the elastic force and retract.

[0011] In certain embodiments, each of the movable elastic teeth is slidably arranged on the follow-up gear disc along the radial direction of the circle with the second shaft as the center, and a movable elastic tooth spring is arranged between the bottom of the movable elastic tooth and the follow-up gear disc.

[0012] In certain embodiments, the angle between the two movable elastic teeth with the second shaft as the end point is 90°.

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

[0014] In certain embodiments, the water inlet pipe is provided with a limiting mechanism for limiting the rotation angle of the follow-up gear disc.

[0015] In certain embodiments, the drive gear disc is a circular gear disc with uniformly distributed teeth on the outer edge, and is fixed on the outer side surface of the reel body.

[0016] The utility model further solves another technical problem of providing a fire-fighting reel.

[0017] To solve the above technical problems, the utility model adopts the technical scheme: a fire hose reel contains the hose reel water pipe valve linkage switch mechanism in any one of the above implementation schemes, further includes the hose reel winding group that rotates around the first shaft is arranged on the shaft pipe, the hose reel winding group includes the hose reel body that rotates the sleeve of the shaft pipe, the drive gear disc is fixed on the hose reel body, the first shaft is parallel with the second shaft.

[0018] The utility model of the scope, not limited to the technical scheme of the specific combination of the above technical features, should also cover other technical solutions formed by any combination of the above technical features or its equivalent features. For example, the above features and the technical features disclosed in this application (but not limited to) with similar functions are replaced with each other to form a technical solution.

[0019] Due to the above technical scheme, the utility model has the following advantages compared with the prior art: the hose reel water pipe valve linkage switch mechanism of the embodiment, the hose reel body is driven as a driving force source during the process of pulling out or folding up the water outlet pipe, the drive gear disc is fixed on the hose reel body, the second shaft and the valve body fixed on the second shaft are directly controlled to rotate through the meshing and cooperation of the drive gear disc and the follow-up gear disc, the valve opening or closing is quickly completed, the structure is simple, the maintenance is convenient, the user operation is simple, and it is helpful for the user to realize the first time self-rescue type fire extinguishing use before the fire fighter arrives in the fire. BRIEF DESCRIPTION OF DRAWINGS

[0020] ATTACHMENT Figure 1 It is a side view of the fire hose reel;

[0021] ATTACHMENT Figure 2 It is a schematic view (partially cut open at the hose reel joint) of K towards; Figure 1

[0022] ATTACHMENT Figure 3 It is a schematic view (partially cut open at the hose reel joint) of K towards; Figure 2 It is an enlarged schematic view of the hose reel water pipe valve linkage switch mechanism (valve closed state) at A in the figure;

[0023] ATTACHMENT Figure 4 It is a schematic view of the hose reel water pipe valve linkage switch mechanism (valve open state);

[0024] 1, hose reel joint; 1a, shaft pipe; 1b, water inlet pipe; 11, limit platform; 2, drive gear disc; 3, follow-up gear disc; 31, movable spring tooth; 31a, abutting slope; 32, movable spring tooth spring; 4, hose reel winding group; 41, hose reel body; 5, rocker arm; 6, water inlet pipe; 7, water outlet pipe; X1, first shaft; X2, second shaft. DETAILED DESCRIPTION

[0025] ​As shown in the drawings, a fire-fighting reel comprises a rocker 5 rotatably mounted on a wall, a reel joint 1 fixed on the end of the rocker 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 on the water outlet pipe 7, and a reel water pipe valve linkage switch mechanism installed between the reel joint 1 and a reel body 41 of the reel winding 4.

[0026] In this embodiment, the reel water pipe valve linkage switch mechanism has the following detailed structure:

[0027] As shown in the drawings, Figure 1 The reel joint 1 comprises a shaft pipe 1a and a water inlet pipe 1b vertically extending downward from one end of the shaft pipe 1a. Figure 1 、 2 The reel body 41 is sleeved on the shaft pipe 1a and can rotate around the first axis X1, the water inlet pipe 1b is connected to the water inlet pipe 6, and a ball valve is rotatably connected in the water inlet pipe 1b around a second axis X2, the ball valve is located in the water inlet pipe 1b, and the second axis X2 extends towards the reel body 41.

[0028] As shown in the drawings, the reel water pipe valve linkage switch mechanism comprises a circular driving gear plate 2 fixed on the outer surface of the reel body 41 and having the first axis X1 as the center, and a circular sector driven gear plate 3 arranged outside the water inlet pipe 1b and fixed on the outer end of the second axis X2, the driven gear plate 3 can be engaged with the driving gear plate 2, and the second axis X2 is parallel to the first axis X1.

[0029] As shown in the drawings, Figures 2-4 The circular driving gear plate 2 has driving teeth uniformly distributed on the outer edge. The circular sector driven gear plate 3 has driven teeth uniformly distributed on the outer edge, which can be engaged with the driving teeth. As shown in the cross-sectional view, Figure 3 、 4 The two teeth at the head and tail of the driven gear plate 3 are respectively elastic retractable movable elastic teeth 31, and the second axis X2 is the end point, and the angle between the two movable elastic teeth 31 is 90°.

[0030] Each movable elastic tooth 31 is slidably arranged on the driven gear plate 3 along the radial direction of the circle with the second axis X2 as the center, and a movable elastic tooth spring 32 is arranged between the bottom of the movable elastic tooth 31 and the driven gear plate 3, so that the movable elastic tooth 31 stably pops out under the condition of no pressure.

[0031] In each movable spring tooth 31, the tooth surface on both sides that is farthest from the adjacent follower tooth is a contact slope 31a that is used to abut against the tooth that moves up from the drive tooth disk 2, thereby causing the movable spring tooth 31 to overcome the elastic force and retract. The other tooth surface on both sides is the same as the tooth surface of the other follower teeth. The two tooth surfaces of the movable spring tooth 31 correspond to the forward and reverse rotation of the reel body 41, respectively.

[0032] Operating instructions:

[0033] 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 closed state. If the reel body 41 and the drive toothed disc 2 continue to rotate clockwise to reel the water pipe 7, the drive teeth on the drive toothed disc 2 will move clockwise one by one and press against the contact slope of the vertical movable spring tooth 31 in sequence, causing the vertical movable spring tooth 31 to repeatedly retract and pop out until the water pipe 7 is completely wound on the reel body 41.

[0034] As attached Figure 3 In the state shown, if the water outlet pipe 7 is pulled outward, it will cause the reel body 41 and the drive gear 2 to rotate counterclockwise. The first drive tooth that moves counterclockwise will then mesh with the vertical movable spring tooth 31, driving the follower gear 3 to rotate clockwise until the follower gear 3 rotates 90° clockwise, as shown in the attached diagram. Figure 4 As shown in the diagram, the ball valve of the hose reel water pipe valve linkage switch mechanism is already in the open state.

[0035] As attached Figure 4 In the state shown, if the water outlet pipe 7 is pulled out, thereby driving the reel body 41 and the drive toothed disc 2 counterclockwise, the drive teeth on the drive toothed disc 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.

[0036] As attached Figure 4 In the state shown, if the reel body 41 and the drive toothed disc 2 are rotated clockwise to reel in the water outlet pipe 7, the first drive tooth that moves 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, as shown in the attached diagram. Figure 3 As shown in the diagram, the ball valve of the hose reel water pipe valve linkage switch mechanism is in the closed state.

[0037] The hose reel water pipe valve linkage switch mechanism in this implementation scheme utilizes the rotation of the hose reel body 41 during the process of pulling out or retracting the water pipe 7. The drive gear 2 fixed on the hose reel body 41 serves as the driving component. Through gear meshing, it drives the follower gear 3 to rotate 90°, which in turn controls the ball valve to rotate 90° via the second shaft X2, thus opening or closing the valve. The key feature is that during the process of pulling out or retracting the water pipe 7, the hose reel body 41 only needs to rotate about 90° to open or close the ball valve. In other words, the hose reel water pipe valve linkage switch mechanism provides very rapid and sensitive control over the opening and closing of the ball valve as the water pipe 7 is pulled out and retracted. It is also easy to operate, helping users to achieve first-time self-rescue fire extinguishing before firefighters arrive in a fire.

[0038] The implementation scheme includes a water pipe valve linkage switch mechanism for the reel, located between the water inlet pipe 1b and the outer wall of the reel body 41. It features an exposed design, simple structure, and clear visibility of the engagement status, facilitating inspection and maintenance.

[0039] The water inlet pipe 1b is equipped with a limiting mechanism to restrict the rotation angle of the follower gear disk 3. (See attached...) Figure 3 , 4 As shown, the limiting mechanism is a horizontally positioned limiting platform 11 fixed on the water inlet pipe 1b and located below the circular fan-shaped follower gear disk 3, thereby limiting the circular fan-shaped follower gear disk 3 to rotate only within a 90° range.

[0040] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A reel hose valve linkage switching mechanism comprising a reel coupling (1) characterised in that: The reel joint (1) comprises a shaft tube (1a) connected with the reel body (41) around the first shaft (X1), a water inlet pipe (1b) formed by bending one end of the shaft tube (1a) to one side and connected with the water inlet pipe (6), and a valve body connected with the water inlet pipe (1b) through the second shaft (X2), Further comprising a driving gear (2) fixed on the reel body (41) and taking the first shaft (X1) as the center of the circle, and a follow-up gear (3) arranged outside the water inlet pipe (1b) and fixed on the outer end of the second shaft (X2), the follow-up gear (3) can be engaged with the driving gear (2) and take the second shaft (X2) as the center of the circle, When the reel body (41) rotates relative to the reel joint (1), the driving gear (2) drives the follow-up gear (3) to rotate, thereby controlling the rotation of the valve body to open or close the valve.

2. The reel hose valve linkage switch mechanism of claim 1, wherein: The follow-up gear (3) is a circular sector gear with uniformly distributed teeth on the outer edge.

3. The reel hose valve linkage switch mechanism of claim 1, wherein: The first and last teeth of the follow-up gear (3) are respectively elastic retractable movable elastic teeth (31).

4. The reel hose valve linkage switch mechanism of claim 3, wherein: Among the two tooth surfaces of each movable elastic tooth (31), the tooth surface away from the adjacent tooth is a collision slope (31a) to facilitate the collision with the tooth moved from the driving gear (2) to promote the movable elastic tooth (31) to overcome the elastic force and retract.

5. The reel hose valve linkage switch mechanism of claim 3, wherein: Each movable elastic tooth (31) is respectively arranged on the follow-up gear (3) along the radial direction of the circle with the second shaft (X2) as the center, and a movable elastic tooth spring (32) is arranged between the bottom of the movable elastic tooth (31) and the follow-up gear (3).

6. The reel hose valve linkage switch mechanism of claim 3, wherein: The angle between the first and last movable elastic teeth (31) is 90° with the second shaft (X2) as the end point.

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

8. The reel hose valve gang switch mechanism of claim 1, wherein: The water inlet pipe (1b) is provided with a limiting mechanism for limiting the rotation angle of the follow-up gear (3).

9. The reel hose valve gang switch mechanism of claim 1, wherein: The driving gear (2) is a circular gear with uniformly distributed teeth on the outer edge, and is fixed on the outer surface of the reel body (41).

10. A fire hose reel comprising a reel hose valve linkage switch mechanism according to any one of claims 1 to 9. Further comprising a reel winding (4) arranged on the shaft tube (1a) around the first shaft (X1), the reel winding (4) comprises the reel body (41) rotatably sleeved on the shaft tube (1a), the driving gear (2) is fixed on the reel body (41), and the first shaft (X1) is parallel to the second shaft (X2).

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