Switch control device for fire-fighting lance

Abstract

The utility model relates to a switch control device for a fire-fighting lance, which belongs to the technical field of fire-fighting lances and comprises a lance body, a liquid channel is arranged in the lance body, a water inlet and a water outlet which are communicated with the liquid channel are arranged on the lance body, and a plug is arranged in the water outlet of the lance body. A sliding pipe used in cooperation with the plug is slidably arranged in the liquid channel, a handle is rotatably arranged on the outer side of the water gun body, an annular groove is formed in the outer side face of the sliding pipe, a rotating disc is arranged on the handle, a containing through groove for containing the rotating disc is formed in the water gun body, and a driving rod extending into the annular groove is arranged on the rotating disc. The sliding pipe can be controlled to be close to or away from the plug by pulling the handle, a limiting convex part is arranged on the outer side of the rotating disc, and a limiting concave part used in cooperation with the limiting convex part is arranged on the inner side of the containing through groove. And impurities are prevented from entering the switch control device for the fire-fighting lance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fire water gun, especially a switch control device for fire water gun. BACKGROUND

[0002] At present, the fire water gun belongs to the conventional fire tool, which is connected with the fire hydrant through the water hose, and then the water is sprayed from the fire water gun to realize the spraying fire extinguishing, the common fire water gun is mainly divided into straight flow water gun and spray water gun according to the flow state, wherein the water flow sprayed by the straight flow water gun is columnar, has the characteristics of long range, large flow and strong impact, is commonly used for extinguishing general solid material fire and auxiliary cooling during fire extinguishing, etc., the water flow sprayed by the spray water gun is fan-shaped mist, has the characteristics of large coverage, has very strong fire extinguishing ability to the fire in the building, can also extinguish the fire of live equipment, combustible dust and part of oil, etc., so the suitable fire water gun needs to be selected according to the fire situation during actual use.

[0003] The domestic database discloses the utility model with the application number 202021436633.4 and the patent name of a fire water gun with pressure detection, which comprises a water gun body, a ball core and an operating handle, the water gun body has a communicating inlet flow channel and outlet flow channel, the inlet flow channel and the outlet flow channel have an installation cavity, the ball core is rotationally arranged in the installation cavity, the operating handle is used for controlling the ball core to communicate the inlet flow channel and the outlet flow channel, the ball core has a connecting hole capable of communicating the installation cavity, the water gun body is provided with a fixed hole communicating with the installation cavity on the outside, a pressure detector is arranged in the fixed hole, and the pressure detector is used for detecting the pressure in the installation cavity, in order to avoid excessive rotation of the operating handle, the utility model is provided with a limiting hole on the outside of the valve body, a limiting block is arranged on the operating handle, the limiting block is slid in the limiting hole and is limited by the limiting block, in actual use, other sundries can be hooked, and other impurities can be easily accumulated in the limiting hole, resulting in the blockage of the limiting hole, the rotation of the operating handle is inconvenient, and the use of the firefighter is affected. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a switch control device for fire water gun, which has reasonable structure, the limiting structure between the handle and the water gun body is built-in, sundries cannot be hooked, and impurities can be avoided from entering the interior as much as possible.

[0005] The utility model is characterized in that:

[0006] The utility model relates to a switch control device for fire -fighting water gun, including water gun body, be provided with liquid passage in the water gun body, be provided with water inlet and water outlet of liquid passage intercommunication on the water gun body, be provided with the plug in the water outlet of water gun body, the sliding pipe that uses with the plug cooperation is arranged in the liquid passage, the handle is rotatably arranged outside the water gun body, the outside surface of sliding pipe is provided with ring groove, be provided with rotary disc on the handle, be provided with containing through slot of rotary disc, be equipped with the drive rod that protrudes into ring groove on the rotary disc, can control sliding pipe to be close to or away from the plug through pulling handle, and the outside of rotary disc is provided with limiting convex part, the inside of containing through slot is provided with limiting recess part with limiting convex part cooperation uses.

[0007] In the above-mentioned switch control device for fire -fighting water gun, the rotation angle of the handle is between 0-100 °.

[0008] In the above-mentioned switch control device for fire -fighting water gun, the rotary disc is evenly distributed with several gear grooves, and the water gun body is provided with at least one limiting assembly, the limiting assembly is located at one side of the containing through slot and extends into the containing through slot and cooperates with the gear groove.

[0009] In the above-mentioned switch control device for fire -fighting water gun, the limiting assembly is two.

[0010] In the above-mentioned switch control device for fire -fighting water gun, the limiting assembly includes a positioning screw, a spring and a ball, the positioning screw is detachably arranged on the water gun body, the inner end of the positioning screw is provided with a positioning groove, the spring and the ball are sequentially arranged in the positioning groove, and the ball is abutted in the gear groove along the outer side wall of the rotary disc by the elasticity of the spring.

[0011] In the above-mentioned switch control device for fire -fighting water gun, the gear groove is an arc groove.

[0012] In the above-mentioned switch control device for fire -fighting water gun, a guide slope is arranged between the gear groove and the outer side surface of the rotary disc.

[0013] In the above-mentioned switch control device for fire -fighting water gun, the rotary disc and the limiting convex part are integrally formed.

[0014] In the above-mentioned switch control device for fire -fighting water gun, the rotary disc is provided with a mounting groove for accommodating the limiting convex part.

[0015] The utility model compared with prior art highlights and beneficial technical effect is:

[0016] The handle is internally provided with a rotating disc, the water gun body is internally provided with a containing groove for containing the rotating disc, a limiting convex part is arranged on the outer side wall of the rotating disc, a limiting concave part for cooperating with the limiting convex part is arranged in the containing groove, the rotating angle of the handle is controlled by the cooperation of the limiting convex part and the limiting concave part, the inner side surface of the handle is in contact with the water gun body, the containing groove is equivalent to be closed, and the containing groove is not communicated with the outside as far as possible, so that impurities can be prevented from entering the limiting concave part and normal use of the handle is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural diagram of the embodiment one of the utility model.

[0018] Figure 2 is a sectional view of the embodiment one of the utility model.

[0019] Figure 3 is a partial sectional view of the embodiment one of the utility model.

[0020] Figure 4 is a structural schematic view of the handle and the sliding pipe of the embodiment one of the utility model.

[0021] Figure 5 is Figure 4 the enlarged view of A of

[0022] Figure 6 is a structural schematic view of the water pipe body and the rotating disc of the embodiment one of the utility model.

[0023] Figure 7 is an explosion view of the limiting assembly of the embodiment one of the utility model.

[0024] Figure 8 is a structural schematic view of the embodiment one of the utility model without handle.

[0025] Figure 9 is an explosion view of the rotating disc and the limiting convex part of the embodiment two of the utility model.

[0026] 1, water gun body;11, water inlet;12, water outlet;13, plug;14, sliding pipe;141, ring groove;15, handle;151, rotating disc;152, containing groove;153, limiting convex part;154, limiting concave part;155, mounting groove;156, driving rod;1511, gear slot;15110, guide inclined surface;1512, limiting assembly;15121, positioning screw;15122, spring;15123, ball;15124, positioning groove. DETAILED DESCRIPTION

[0027] The utility model will be further described in conjunction with the drawings by specific embodiment:

[0028] Example 1, as Figures 1-8 The following describes a switch control device for a fire hose reel, comprising a hose reel body 1, a liquid channel within the hose reel body 1, an inlet 11 and an outlet 12 connected by the liquid channel, a plug 13 within the outlet 12, a sliding tube 14 slidably disposed within the liquid channel for use with the plug 13, a handle 15 rotatably disposed on the outer side of the hose reel body 1, an annular groove 141 on the outer surface of the sliding tube 14, a rotating disk 151 on the handle 15, a receiving groove 152 on the hose reel body 1 for accommodating the rotating disk 151, and a drive rod 156 extending into the annular groove 141 on the rotating disk 151. By pulling the handle 15, the sliding tube 14 can be controlled to move closer to or away from the plug 13. A limiting protrusion 153 is provided on the outer side, and a limiting recess 154 that cooperates with the limiting protrusion 153 is provided on the inner side of the receiving groove 152. The rotation angle of the handle 15 is between 0-100°. A rotating disk is provided on the inner side of the handle of this utility model, and a receiving groove for accommodating the rotating disk is provided in the water gun body. A limiting protrusion is provided on the outer wall of the rotating disk, and a limiting recess that cooperates with the limiting protrusion is provided in the receiving groove. In this way, the rotation angle of the handle is controlled by the cooperation of the limiting protrusion and the limiting recess. The inner side of the handle is in contact with the water gun body, which is equivalent to sealing the receiving groove, so that it is not connected to the outside as much as possible. This can prevent impurities from entering the limiting recess and ensure that the handle can be used normally. The handle and the rotating disk are detachably connected, and the drive rod is eccentrically set on the rotating disk.

[0029] In the aforementioned fire hose reel switch control device, the rotating disk 151 has a plurality of position slots 1511 evenly distributed on it, and the hose reel body 1 is provided with at least one limiting component 1512. The limiting component 1512 is located on one side of the receiving through groove 152 and extends into the receiving through groove 152 to cooperate with the position slots 1511. There are two limiting components 1512, each including a positioning screw 15121, a spring 15122, and a ball bearing 15123. The positioning screw 15121 can... The disassembly is set on the water gun body 1. The inner end of the positioning screw 15121 is provided with a positioning groove 15124. The spring 15122 and the ball 15123 are arranged in the positioning groove 15124 in sequence. The ball 15123, with the help of the elasticity of the spring 15122, abuts against the gear groove 1511 along the outer wall of the rotating disk 151. When the handle is rotated, its ball will abut against the side wall of the rotating disk and slide into the gear groove from the side wall. This can prevent the water pressure from being too high, which would cause the slide tube to slide in the opposite direction and shut off the water gun.

[0030] In the switch control device for the fire water gun, the gear groove 1511 is an arc-shaped groove, and a guide inclined surface 15110 is arranged between the gear groove 1511 and the outer side surface of the rotating disc 151, so as to facilitate the rotation of the handle by the operator.

[0031] In the switch control device for the fire water gun, the rotating disc 151 and the limiting convex part 153 are in an integral molding structure, and the outer side surface of the limiting convex part is in a circular arc structure.

[0032] In the switch control device for the fire water gun, the rotating disc 151 and the limiting convex part 153 are in an integral molding structure, and the outer side surface of the limiting convex part is in a circular arc structure. Figure 9 As shown in the figure: the rotating disc 151 is provided with a mounting groove 155 for accommodating the limiting convex part 153, and the limiting convex part 153 can be replaced when it is worn, and the limiting convex part 153 is in a columnar structure.

[0033] The above embodiments are only preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model, so that: all equivalent changes made according to the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A switch control device for a fire hose nozzle, comprising a nozzle body (1), characterized in that: The water gun body (1) has a liquid channel inside, and the water gun body (1) has an inlet (11) and an outlet (12) connected by the liquid channel. A plug (13) is installed inside the outlet (12) of the water gun body (1). A slide tube (14) that works with the plug (13) is slidably installed inside the liquid channel. A handle (15) is rotatably installed on the outside of the water gun body (1). An annular groove (141) is provided on the outer side of the slide tube (14). A rotating mechanism is provided on the handle (15). The water gun body (1) is provided with a receiving groove (152) for receiving the rotating disk (151). The rotating disk (151) is provided with a drive rod (156) that extends into the annular groove (141). By pulling the handle (15), the slide tube (14) can be controlled to move closer to or away from the plug (13). The outer side of the rotating disk (151) is provided with a limiting protrusion (153), and the inner side of the receiving groove (152) is provided with a limiting recess (154) that cooperates with the limiting protrusion (153).

2. The switch control device for fire hoses according to claim 1, characterized in that: The rotation angle of the handle (15) is between 0 and 100°.

3. The switch control device for fire hoses according to claim 1 or 2, characterized in that: The rotating disk (151) has a number of gear slots (1511) evenly distributed on it. The water gun body (1) is provided with at least one limiting component (1512). The limiting component (1512) is located on one side of the receiving through groove (152) and extends into the receiving through groove (152) to cooperate with the gear slot (1511).

4. The switch control device for fire hoses according to claim 3, characterized in that: There are two limiting components (1512).

5. The switch control device for fire hose reels according to claim 4, characterized in that: The limiting component (1512) includes a positioning screw (15121), a spring (15122), and a ball bearing (15123). The positioning screw (15121) is detachably mounted on the water gun body (1). The inner end of the positioning screw (15121) is provided with a positioning groove (15124). The spring (15122) and the ball bearing (15123) are sequentially mounted in the positioning groove (15124). The ball bearing (15123) rests against the gear slot (1511) along the outer wall of the rotating disk (151) with the help of the elasticity of the spring (15122).

6. The switch control device for fire hoses according to claim 5, characterized in that: The gear slot (1511) is an arc-shaped slot.

7. The switch control device for fire hoses according to claim 6, characterized in that: A guide slope (15110) is provided between the gear slot (1511) and the outer side of the rotating disk (151).

8. The switch control device for fire hoses according to claim 3, characterized in that: The rotating disk (151) and the limiting protrusion (153) are integrally formed.

9. The switch control device for fire hoses according to claim 3, characterized in that: The rotating disk (151) is provided with a mounting groove (155) for accommodating the limiting protrusion (153).

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