A clamping claw mechanism for a fire hose butt joint

Abstract

The present invention provides a clamping claw mechanism for a fire hose docking joint, comprising a base, an actuator, a clamping device, a sliding device, a positioning and resetting device, and a driving device; the actuator is connected to the base; the sliding device is connected to the actuator; the clamping device is connected to the sliding device; the positioning and resetting device is arranged on the base and connected to the actuator; the driving device is arranged on the base and connected to the positioning and resetting device. The present invention firmly and reliably clamps the fire hose and can ensure the smooth docking of the fire robot.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting, in particular to a clamping claw mechanism for a fire hose butt joint. Background Art

[0002] With the rapid development of the robot industry, firefighting robots have been widely used. However, most firefighting robots need to manually dock the hoses. In emergency situations, manual docking of hoses undoubtedly consumes a lot of time. If the robot arm is used for automatic docking, a lot of time can be saved. However, the docking of the robot arm requires an effective clamping mechanism for the fire hose joint to achieve reliable hose clamping, docking, and loosening. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a fire hose butt joint clamping claw mechanism, which manually clamps the hose joint on the mechanism. When the robotic arm completes the hose docking work, the claw is automatically released so that the robot can go to the fire scene to perform firefighting work.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a clamping claw mechanism for a fire hose butt joint, comprising a base, an actuator, a clamping device, a sliding device, a positioning and resetting device and a driving device; the actuator is connected to the base; the sliding device is connected to the actuator; the clamping device is connected to the sliding device; the positioning and resetting device is arranged on the base and connected to the actuator; the driving device is arranged on the base and connected to the positioning and resetting device.

[0006] Preferably, the actuator includes: a turntable, a rotating shaft, a handle and a tension spring; the turntable is connected to the base via the rotating shaft fixedly arranged on the base; the handle is fixedly arranged on the turntable; one end of the tension spring is connected to the base, and the other end of the tension spring is connected to the sliding device.

[0007] Preferably, the turntable has a circular hole for cooperating with the positioning device.

[0008] Preferably, the clamping device comprises: two clamping claws, which are arranged opposite to each other and connected to the base through the sliding device.

[0009] Preferably, the clamping device further comprises a rubber claw, and the rubber claw is connected to the clamping claw via a bolt.

[0010] Preferably, the sliding device includes: a slide rail, a slider and a connecting rod; there are two slide rails, which are symmetrically arranged on the base; there are two sliders, which are respectively installed on the claws and are adaptively connected to the slide rails; the slider is connected to the actuator through the connecting rod.

[0011] Preferably, the positioning and resetting device comprises: a positioning rod and a resetting spring, the positioning rod is connected to the resetting spring, the resetting spring is arranged in the base, the positioning rod passes through the resetting spring and is adapted to the circular hole.

[0012] Preferably, the driving device is an electromagnet, which is arranged on the base and connected to the positioning and resetting device.

[0013] Preferably, a proximity switch is further included, and the proximity switch is arranged on the base.

[0014] Compared with the prior art, the invention has the following beneficial effects: the hose clamping process is manually operated and clamped by a clamping device, which is more reliable. The driving device can trigger the positioning and resetting device to automatically release, and the process is faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is the front clamping state of the present invention;

[0017] Figure 2 The front side of the present invention is in a released state;

[0018] Figure 3 This is the back side clamping state of the present invention;

[0019] Figure 4 It is a partial cross-sectional view of the electromagnet and the limit rod of the present invention;

[0020] Figure 5 It is a partial exploded view of the turntable of the present invention;

[0021] Figure 6 This is a partial exploded view of the claw of the present invention.

[0022] Description of reference numerals:

[0023] 1: base; 2: handle; 3: turntable; 4: electromagnet; 5: connecting rod; 6: claw; 7: rubber claw; 8: hose joint; 9: tension spring; 10: proximity switch; 11: slider; 12: slide rail; 13: rotating shaft; 14: positioning rod; 15: reset spring. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figures 1 to 6As shown, the present invention provides a clamping claw mechanism for a fire hose butt joint, comprising a base 1, an actuator, a clamping device, a sliding device, a positioning and resetting device, and a driving device; the actuator is connected to the base 1; the sliding device is connected to the actuator; the clamping device is connected to the sliding device; the positioning and resetting device is arranged on the base 1 and connected to the actuator; the driving device is arranged on the base 1 and connected to the positioning and resetting device. The base 1 is connected to the mechanical arm through bolts and cylindrical pins.

[0028] like Figure 1 and Figure 5 As shown, in a more preferred embodiment, the execution device includes: a rotating disk 3, a rotating shaft 13, a handle 2 and a tension spring 9; the rotating disk 3 is connected to the base 1 through the rotating shaft 13 fixedly arranged on the base 1; the handle 2 is fixedly arranged on the rotating disk 3; one end of the tension spring 9 is connected to the base 1, and the other end of the tension spring 9 is connected to the sliding device. The rotating shaft 13 is fixed on the base 1, and the rotating disk 3 can rotate on the rotating shaft 13. The rotating disk 3 is connected to the claw 6 through the sliding device, and the rotating disk 3 pulls the clamping device to slide while rotating.

[0029] like Figure 1 and Figure 2 As shown, in a more preferred embodiment, the rotating disk 3 has a circular hole for use with the positioning device. The rotating disk 3 has a circular hole, and when it is rotated to a certain angle, the circular hole can be stuck on the positioning reset device.

[0030] like Figure 1 and Figure 6 As shown, in a more preferred embodiment, the clamping device includes: two clamping claws 6 which are arranged opposite to each other and connected to the base 1 through the sliding device.

[0031] like Figure 1 and Figure 6 As shown, in a more preferred embodiment, the clamping device further comprises a rubber claw 7, and the rubber claw 7 is connected to the clamping claw 6 by a bolt. Since the hose joint has an irregular cylindrical appearance, the rubber claw 7 is used for flexible clamping, so that the clamping is more firm, and a certain degree of deflection can be offset during docking, ensuring smooth docking.

[0032] like Figure 1 and Figure 3As shown, in a more preferred embodiment, the sliding device includes: a slide rail 12, a slider 11 and a connecting rod 5; there are two slide rails 12, which are symmetrically arranged on the base 1; there are two sliders 11, which are respectively installed on the claws 6 and are adapted to be connected with the slide rails 12; the slider 11 is connected to the actuator through the connecting rod 5. The slider 11 is installed on the claw 6, and then the whole is installed on the slide rail 12 of the base 1, and the left and right claws 6 can slide left and right along the base 1.

[0033] like Figure 4 As shown, in a more preferred embodiment, the positioning and resetting device includes: a positioning rod 14 and a resetting spring 15, the positioning rod 14 is connected to the resetting spring 15, the resetting spring 15 is arranged in the base 1, the positioning rod 14 is passed through the resetting spring 15, and is adapted to the circular hole.

[0034] like Figures 1 to 5 As shown, in a more preferred embodiment, the driving device is an electromagnet 4, which is arranged on the base 1 and connected to the positioning and resetting device. The positioning rod 14 can be pulled back when powered on.

[0035] The working principle of the present invention is as follows:

[0036] In the initial state, under the action of the tension spring 9, the claw 6 is in the open state, the hose joint is manually placed in the middle of the claw 6, and then the handle 2 is manually pulled to rotate the turntable 3 counterclockwise. When the round hole on the turntable 3 is aligned with the positioning rod 14, the positioning rod 14 extends under the action of the reset spring 15 and enters the round hole of the turntable 3, so that the claw 6 is in the closed state to clamp the hose joint. At this time, the whole mechanism is in a waiting state. When the fire-fighting robot needs to dock the hose, the mechanical arm drives this mechanism to move together, and the docking is completed by identifying the robot's water inlet joint through another suspended camera. In addition, the proximity switch 10 detects the position of the claw 6 to ensure that the claw 6 moves into place. After the docking work is completed, the electromagnet 4 receives a signal and is energized to generate magnetic force. After the positioning rod 14 is subjected to tension, it overcomes the elastic force of the reset spring 15 and is pulled out of the round hole of the turntable 3. The turntable 3 loses its positioning, and the left and right claws 6 slide to both sides due to the force of the tension spring 9, thereby loosening the hose joint 8, and the proximity switch 10 monitors the position of the claws 6 to ensure that the claws 6 are loosened. At this time, the robotic arm can be retracted, and the robot goes to the destination to perform firefighting work.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fire hose butt joint clamping claw mechanism, characterized in that: The invention comprises a base (1), an execution device, a clamping device, a sliding device, a positioning and resetting device, a driving device and a camera; the execution device is connected to the base (1); the sliding device is connected to the execution device; the clamping device is connected to the sliding device; the positioning and resetting device is arranged on the base (1) and connected to the execution device; the driving device is arranged on the base (1) and connected to the positioning and resetting device. Wherein, the driving device is an electromagnet (4), which is arranged on the base (1) and connected to the positioning and resetting device; It also includes a proximity switch (10), wherein the proximity switch (10) is arranged on the base (1); The camera is used to identify whether the fire hose water inlet joint is connected; The actuator comprises: a rotating disk (3), a rotating shaft (13), a handle (2) and a tension spring (9); the rotating disk (3) is connected to the base (1) via the rotating shaft (13) fixedly arranged on the base (1); the handle (2) is fixedly arranged on the rotating disk (3); one end of the tension spring (9) is connected to the base (1), and the other end of the tension spring (9) is connected to the sliding device; The rotating disk (3) has a circular hole for use with the positioning and resetting device; The clamping device comprises a clamping claw (6); The positioning and resetting device comprises: a positioning rod (14) and a resetting spring (15), the positioning rod (14) being connected to the resetting spring (15), the resetting spring (15) being arranged in the base (1), the positioning rod (14) being inserted into the resetting spring (15) and being adapted to the circular hole; In the initial state, under the action of the tension spring (9), the claw (6) is in an open state, the hose connector is manually placed in the middle of the claw (6), and then the handle (2) is manually pulled to rotate the turntable (3) counterclockwise. When the circular hole on the turntable (3) is aligned with the positioning rod (14), the positioning rod (14) extends out under the action of the return spring (15) and enters the circular hole of the turntable (3), so that the claw (6) is in a closed state to clamp the hose connector; and After the docking work is completed, the electromagnet (4) receives a signal and is energized to generate magnetic force. After the positioning rod (14) is subjected to tension, it overcomes the elastic force of the return spring (15) and is pulled out of the round hole of the turntable (3). The turntable (3) loses its positioning, and the claw (6) slides to both sides due to the force of the tension spring (9), thereby loosening the water hose joint.

2. A fire hose butt joint clamping claw mechanism according to claim 1, characterized in that: There are two clamping claws (6) which are arranged opposite to each other and are connected to the base (1) via the sliding device.

3. A fire hose butt joint clamping claw mechanism according to claim 2, characterized in that: The clamping device further comprises a rubber claw (7), wherein the rubber claw (7) is connected to the clamping claw (6) via a bolt.

4. A fire hose butt joint clamping claw mechanism according to claim 2 or 3, characterized in that: The sliding device comprises: a slide rail (12), a slider (11) and a connecting rod (5); the slide rails (12) are provided in two pieces and are symmetrically arranged on the base (1); the sliders (11) are provided in two pieces and are respectively mounted on the claws (6) and are adaptively connected to the slide rails (12); the sliders (11) are connected to the actuator via the connecting rod (5).

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