Damping fire lance holder

Abstract

The utility model discloses a kind of damping fire-fighting lance racks, comprising: base station;Fixed frame is fixedly installed on base station, and the upper end of fixed frame is equipped with the first cavity for fixing water pipe interface;Multi-stage motion compensation mechanism, it is installed on base station, and multi-stage motion compensation mechanism includes at least three joints with head-to-tail, and each joint includes a connecting arm driven by servo motor;Clamping frame, it is installed on the servo motor operating shaft of the terminal joint of multi-stage motion compensation mechanism, and clamping frame is equipped with the second cavity for fixing water gun;Controller, it is connected with each servo motor signal in multi-stage motion compensation mechanism;Wherein, controller is configured as: when water pipe passes through the first cavity and connects installation in second cavity water gun, motion is realized by driving servo motor in multi-stage motion compensation mechanism, to offset the reaction force generated by water flow to water gun, to realize damping. The damping fire-fighting lance rack enhances the stability of water gun jet to some extent.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to a vibration-damping fire hose holder. Background Technology

[0002] As crucial firefighting and rescue equipment, the operational stability of fire hoses directly impacts firefighting efficiency and operator safety. In large-scale fire suppression, especially when high-flow-rate, high-pressure water supply is required, the immense recoil and vibration generated by the hose can place a heavy burden on the operator and potentially lead to hose loss of control, affecting the accuracy and continuity of firefighting operations. Therefore, providing a device that effectively assists in supporting and managing the reaction force of fire hoses is a real need in this field.

[0003] Currently, the common solution in the industry is to use fixed supports or simple robotic arms to support the weight of the water gun and hose. While these devices reduce the physical burden on operators to some extent, they are mostly rigid or passive structures. For the continuous and multidirectional vibrations and instantaneous impacts caused by water pressure fluctuations and water flow, these passive frames are difficult to effectively counteract and buffer; the vibration energy will still be transmitted through the frame, potentially affecting shooting accuracy and the long-term reliability of the equipment.

[0004] It is necessary to design an active compensation system that is structurally sound, responds quickly, and is precisely controlled. Utility Model Content

[0005] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides a vibration-damping fire hose holder. The multi-stage motion compensation mechanism in this vibration-damping fire hose holder can promptly adjust for continuous and multi-directional vibrations and instantaneous impacts caused by water pressure fluctuations and water flow impacts, thereby keeping the nozzle tip stable and enhancing the stability of the water jet.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a vibration-damping fire hose holder, comprising:

[0008] abutment;

[0009] A fixing frame is fixedly installed on the base, and the upper end of the fixing frame is provided with a first cavity for fixing the water pipe interface;

[0010] A multi-stage motion compensation mechanism is mounted on the base. The multi-stage motion compensation mechanism includes at least three joints connected end to end, and each joint includes a connecting arm driven by a servo motor.

[0011] A clamping frame is mounted on the working shaft of the servo motor of the end joint of the multi-stage motion compensation mechanism, and the clamping frame is provided with a second cavity for fixing the water gun.

[0012] The controller is connected to the signals of each servo motor in the multi-stage motion compensation mechanism;

[0013] The controller is configured as follows:

[0014] When the water pipe passes through the first cavity and connects to the water gun installed in the second cavity, the servo motor in the multi-stage motion compensation mechanism is driven to move, thereby counteracting the reaction force generated by the water flow on the water gun and achieving vibration reduction.

[0015] Furthermore, the multi-level motion compensation mechanism includes a first joint, a second joint, and a third joint connected in sequence;

[0016] The first joint includes a first connecting arm and a first servo motor. The first connecting arm is fixed to the base, and the housing of the first servo motor is fixedly connected to the first connecting arm.

[0017] The second joint includes a second connecting arm and a second servo motor. The second connecting arm is fixedly connected to the output shaft of the first servo motor, and the housing of the second servo motor is fixedly connected to the second connecting arm.

[0018] The third joint includes a third connecting arm and a third servo motor. The third connecting arm is fixedly connected to the output shaft of the second servo motor. The housing of the third servo motor is fixedly connected to the third connecting arm, and its output shaft is fixedly connected to the clamping frame.

[0019] Furthermore, the first rotation plane of the output shaft of the first servo motor is perpendicular to the second rotation plane of the output shaft of the second servo motor;

[0020] The second rotation plane of the output shaft of the second servo motor is perpendicular to the third rotation plane of the output shaft of the third servo motor.

[0021] Furthermore, a set of circumferentially distributed elastic blades are provided on the side wall of the first cavity of the fixing frame;

[0022] Each of the elastic blades is radially inward from its connection with the sidewall to elastically press and fix the water pipe interface passing through the first cavity.

[0023] Furthermore, the number of elastic blades is at least three.

[0024] Furthermore, there are four elastic blades.

[0025] Furthermore, the elastic blades are evenly spaced along the circumferential direction of the first cavity.

[0026] Furthermore, the elastic blade is provided with a rubber pad on the side facing the water pipe to increase friction.

[0027] Furthermore, the lower part of the base is equipped with multiple casters.

[0028] This utility model has at least the following advantages or beneficial effects:

[0029] This invention employs a fixed frame and its first cavity structure to stabilize the water pipe interface; it also utilizes a multi-stage motion compensation mechanism and servo motor drive structures for each joint, providing multiple degrees of freedom of movement; a clamping frame and its second cavity structure to secure the water gun; and a signal connection structure between the controller and each servo motor for active motion compensation. Overall, this invention effectively counteracts the reaction force of the water flow through active motion compensation, thereby improving the operational stability of the water gun.

[0030] This invention employs a configuration where the rotation planes of the first and second servo motor output shafts are perpendicular to each other, providing two degrees of freedom for motion in different planes. It also employs a configuration where the rotation planes of the second and third servo motor output shafts are perpendicular to each other, enabling omnidirectional motion compensation in three-dimensional space. Overall, this invention can more effectively counteract vibrations and impacts from different directions.

[0031] This invention employs a circumferentially distributed elastic blade structure on the side wall of the first cavity of the fixing frame, which can accommodate water pipe interfaces of different sizes. It also utilizes a radially inwardly inclined design of the elastic blades, which provides continuous clamping force through elastic deformation. Overall, this invention can more reliably fix water pipe interfaces and reduce vibration transmission at the interface. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 Schematic diagram of the overall structure of the vibration-damping fire hose rack;

[0034] Figure 2 Front view of the overall structure of the vibration-damping fire hose rack;

[0035] Figure 3 Left view of the overall structure of the vibration-damping fire hose rack.

[0036] Figure label:

[0037] 1-Base; 11-Cast; 2-Fixed frame; 21-First cavity; 22-Elastic blade; 3-Multi-stage motion compensation mechanism; 31-First joint; 311-First connecting arm; 312-First servo motor; 32-Second joint; 321-Second connecting arm; 322-Second servo motor; 33-Third joint; 331-Third connecting arm; 332-Third servo motor; 4-Clamping frame; 41-Second cavity. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various parts or elements of this utility model and do not specifically refer to any part or element in this utility model. They should not be construed as limitations on this utility model.

[0042] In this utility model, terms such as "fixed", "connected", and "linked" should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For relevant scientific researchers or technicians in this field, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0043] The embodiments of this utility model will be described in detail below.

[0044] This utility model discloses a vibration-damping fire hose holder. This vibration-damping fire hose holder can achieve effective vibration reduction. Details are as follows:

[0045] Figure 1 Schematic diagram of the overall structure of the vibration-damping fire hose rack; Figure 2 Front view of the overall structure of the vibration-damping fire hose rack; Figure 3 Left view of the overall structure of the vibration-damping fire hose rack. As can be seen from the figure:

[0046] The vibration-damping fire hose rack includes a base 1, a fixing frame 2, a multi-stage motion compensation mechanism 3, a clamping frame 4, and a controller (not shown in the figure).

[0047] The base 1 serves to provide a stable support foundation for the entire device. It is constructed from steel plates using a welding process, with a thickness of 10-20mm, preferably 15mm, and its surface is treated for rust prevention. In this embodiment, the base 1 is a rectangular platform with dimensions of 800mm × 600mm; in other embodiments, the base 1 can also be circular or polygonal, and its dimensions can be adjusted according to actual needs. The base 1 is equipped with multiple casters 11 at its lower part. The casters 11 facilitate the movement and positioning of the entire device, and they are swivel casters with brakes.

[0048] The fixing frame 2 is fixedly installed on the base 1 by bolt connection. The fixing frame 2 is integrally cast from cast steel. The upper end of the fixing frame 2 has a first cavity 21, which is used to fix the water pipe interface. Its inner diameter is 50-100mm, preferably 65mm, and its depth is 80-150mm. A set of circumferentially distributed elastic blades 22 are provided on the side wall of the first cavity 21. The function of the elastic blades 22 is to provide continuous clamping force through elastic deformation to adapt to water pipe interfaces of different sizes. The elastic blades 22 are made of spring steel with a thickness of 2-5mm, preferably 3mm. Each elastic blade 22 is radially inclined inward from its connection with the side wall at an angle of 15-30 degrees, preferably 20 degrees, to elastically clamp and fix the water pipe interface passing through the first cavity 21. In this embodiment, there are 4 elastic blades 22; in other embodiments, there may be 3, 5, or other numbers of elastic blades 22. The elastic blades 22 are evenly spaced circumferentially along the first cavity 21, which allows for uniform distribution of clamping force. A rubber pad is provided on the side of the elastic blades 22 facing the water pipe. The function of the rubber pad is to increase friction and prevent damage to the interface surface. The thickness of the rubber pad is 3-8mm, preferably 5mm.

[0049] A multi-stage motion compensation mechanism 3 is bolted to the base 1 and includes a first joint 31, a second joint 32, and a third joint 33 connected sequentially. The first joint 31 includes a first connecting arm 311 and a first servo motor 312. The first connecting arm 311 is made of steel and is bolted to the base 1. The housing of the first servo motor 312 is connected to the first connecting arm 311 via a flange. The first servo motor 312 is an AC servo motor. The second joint 32 includes a second connecting arm 321 and a second servo motor 322. The second connecting arm 321 is keyed to the output shaft of the first servo motor 312. The housing of the second servo motor 322 is connected to the second connecting arm 321 via a flange. The third joint 33 includes a third connecting arm 331 and a third servo motor 332. The third connecting arm 331 is keyed to the output shaft of the second servo motor 322. The housing of the third servo motor 332 is connected to the third connecting arm 331 via a flange. The function of the multi-level motion compensation mechanism 3 is to provide multiple degrees of freedom of motion and achieve motion compensation through the drive of servo motors.

[0050] The first rotation plane of the output shaft of the first servo motor 312 is perpendicular to the second rotation plane of the output shaft of the second servo motor 322, and the second rotation plane of the output shaft of the second servo motor 322 is perpendicular to the third rotation plane of the output shaft of the third servo motor 332. This orthogonal arrangement enables the mechanism to move in all directions in three-dimensional space, providing a structural basis for multi-directional vibration compensation.

[0051] The clamping frame 4 is mounted on the output shaft of the third servo motor 332. The clamping frame 4 is made of aluminum alloy, making it lightweight and high-strength. The clamping frame 4 has a second cavity 41, which is used to fix the water gun. Its inner diameter is 40-80mm, preferably 50mm, and its depth is 60-120mm. The clamping frame 4 is connected to the water gun through the second cavity 41, allowing the water gun to remain stable with the movement of the multi-stage motion compensation mechanism 3.

[0052] The controller uses a PLC or embedded system and connects to each servo motor via a CAN bus or EtherCAT protocol signal. The controller's function is to drive the servo motors in real time, employing either PID or adaptive control algorithms. The controller is configured to drive the servo motors in the multi-stage motion compensation mechanism 3 to counteract the reaction force of the water flow on the water gun when the water pipe passes through the first cavity 21 and connects to the water gun installed in the second cavity 41, thereby achieving vibration reduction.

[0053] Overall, this utility model combines a base 1, a fixed frame 2, a multi-stage motion compensation mechanism 3, a clamping frame 4, and a controller. To a certain extent, it can counteract the reaction force of the water flow through active motion compensation, thereby improving the stability of the water gun operation and having a positive effect on improving the accuracy and continuity of fire extinguishing operations.

[0054] The aforementioned structural features work together to form a complete active vibration reduction system, effectively addressing continuous and multidirectional vibrations and instantaneous impacts caused by water pressure fluctuations and water flow. The use of three orthogonally arranged servo motors enables precise motion compensation in three-dimensional space; while the combined use of the elastic blades 22 and rubber pads effectively reduces the transmission of vibration from the water pipes to the frame. The synergistic effect of these structural features gives the entire device excellent vibration reduction performance and high reliability.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vibration-damping fire hose holder, characterized in that, include: abutment(1); A fixing frame (2) is fixedly installed on the base (1), and the upper end of the fixing frame (2) is provided with a first cavity (21) for fixing the water pipe interface. A multi-stage motion compensation mechanism (3) is mounted on the base (1). The multi-stage motion compensation mechanism (3) includes at least three joints connected end to end, and each joint includes a connecting arm driven by a servo motor. The clamping frame (4) is mounted on the working shaft of the servo motor of the end joint of the multi-stage motion compensation mechanism. The clamping frame (4) is provided with a second cavity (41) for fixing the water gun. The controller is connected to the signals of each servo motor in the multi-stage motion compensation mechanism; The controller is configured as follows: When the water pipe passes through the first cavity (21) and connects to the water gun installed in the second cavity (41), the servo motor in the multi-stage motion compensation mechanism is driven to move, so as to counteract the reaction force generated by the water flow on the water gun, thereby achieving vibration reduction.

2. The vibration-damping fire hose holder according to claim 1, characterized in that, The multi-level motion compensation mechanism includes a first joint, a second joint, and a third joint connected in sequence. The first joint (31) includes a first connecting arm (311) and a first servo motor (312). The first connecting arm (311) is fixed on the base (1), and the housing of the first servo motor (312) is fixedly connected to the first connecting arm (311). The second joint (32) includes a second connecting arm (321) and a second servo motor (322). The second connecting arm (321) is fixedly connected to the output shaft of the first servo motor (312), and the housing of the second servo motor (322) is fixedly connected to the second connecting arm (321). The third joint (33) includes a third connecting arm (331) and a third servo motor (332). The third connecting arm (331) is fixedly connected to the output shaft of the second servo motor (322). The housing of the third servo motor (332) is fixedly connected to the third connecting arm (331), and its output shaft is fixedly connected to the clamping frame (4).

3. The vibration-damping fire hose holder according to claim 2, characterized in that: The first rotation plane of the output shaft of the first servo motor (312) is perpendicular to the second rotation plane of the output shaft of the second servo motor (322); The second rotation plane of the output shaft of the second servo motor (322) is perpendicular to the third rotation plane of the output shaft of the third servo motor (332).

4. The vibration-damping fire hose holder according to claim 1, characterized in that: A set of circumferentially distributed elastic blades (22) are provided on the side wall of the first cavity (21) of the fixing frame (2). Each of the elastic blades (22) is radially inward from its connection with the sidewall to elastically press and fix the water pipe interface passing through the first cavity (21).

5. The vibration-damping fire hose holder according to claim 4, characterized in that, The elastic blades (22) are at least three in number.

6. The vibration-damping fire hose holder according to claim 4, characterized in that, There are four elastic blades (22).

7. The vibration-damping fire hose holder according to any one of claims 4 to 6, characterized in that, The elastic blades (22) are evenly spaced circumferentially along the first cavity (21).

8. The vibration-damping fire hose holder according to any one of claims 4 to 6, characterized in that, The elastic blade (22) has a rubber pad on the side facing the water pipe to increase friction.

9. The vibration-damping fire hose holder according to claim 1, characterized in that, The base (1) is provided with multiple casters (11) at its lower part.

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