A hose reel head clamping mechanism

Abstract

The utility model discloses a hose reel head clamping mechanism, it includes frame, push belt mechanism, embrace belt mechanism and locking mechanism, the frame with the translation mechanism is connected, push belt mechanism with the frame is connected, embrace belt mechanism includes telescopic part, embrace belt part and transmission part, telescopic part with the frame is connected, and can along the length direction telescopic of machine head frame, transmission part connects telescopic part with embrace belt part, to with the telescopic of telescopic part conversion is the movement of embrace belt part far away or close to push belt mechanism. The utility model has the beneficial effects of: the action of clamping or loosening the water belt is realized by its own mechanical structure, compared with relying on electric power or hydraulic system, the mechanical mechanism has fewer failure points, and the reliability is higher in the harsh environment, and it is more suitable for the fire scene, and the mechanical component wear can be solved through simple replacement or maintenance, and the maintenance cost is lower, and the mechanical linkage is strong in instantaneity, and the response speed is fast.

Description

Technical Field

[0001] This utility model relates to the technical field of fire hose laying vehicles, and in particular to a hose reel head clamping mechanism. Background Technology

[0002] With the continuous development of the domestic economy, large and super-large fires are increasing, especially those in petrochemical enterprises and ports, which have greater destructive power. At the scene of a large fire, a hose laying vehicle is used to quickly lay large-diameter hoses between the water source and the fire site for long-distance water supply, enabling continuous firefighting operations. After the operation is completed, the hoses are stored in the vehicle compartment.

[0003] Existing hose laying vehicles (such as the hose laying vehicle disclosed in application number 202011639179.7) use a hose winding head to achieve hose winding and stacking operations. The winding head includes a head frame, a translation mechanism, and a hose clamping mechanism. The translation mechanism is mounted on the head frame and is used for reciprocating linear motion along the length of the head frame. The hose clamping mechanism is mounted on the translation mechanism and is used for clamping or releasing the hose. The hose clamping mechanism and the translation mechanism cooperate to evenly stack the hose in the box at the tail end of the head frame. However, the hose clamping mechanism of the above structure requires the drive of a driver to clamp or release the hose, rather than relying on its own mechanical structure to achieve the clamping or releasing action. Relying on an electric or hydraulic system, if the power source fails or there are problems with the circuit or oil circuit, the driver is prone to failure, resulting in high maintenance costs. Furthermore, the power transmission requires a response from the driver, which introduces a certain delay. Therefore, there is an urgent need to design a hose reel head clamping mechanism that can clamp or release the hose using its own mechanical structure. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a water hose reel head clamping mechanism to solve the technical problem that the water hose clamping mechanism in the prior art needs to rely on the drive of the driver to clamp or release the water hose, rather than relying on its own mechanical structure to achieve the clamping or releasing of the water hose.

[0005] To achieve the above technical objectives, the present invention provides a hose reel head clamping mechanism, wherein the hose reel head includes a head frame and a translation mechanism, comprising: The frame is connected to the translation mechanism; A push-belt mechanism, which is connected to the frame; The belt-clamping mechanism includes a telescopic part, a belt-clamping part, and a transmission part. The telescopic part is connected to the frame and can extend and retract along the length of the head frame. The transmission part connects the telescopic part and the belt-clamping part to convert the extension and retraction of the telescopic part into the movement of the belt-clamping part away from or towards the push-belt mechanism. When the frame reaches the head end of the head frame, the telescopic part impacts the head frame and retracts, so that the belt-clamping part and the push-belt mechanism together clamp the water hose. A locking mechanism is connected to the frame and is used to lock the telescopic part in the retracted state. When the frame reaches the tail end of the head frame, the locking mechanism strikes the head frame and releases the telescopic part.

[0006] Furthermore, the pusher mechanism includes a telescopic body and a pusher body. The telescopic body is connected to the frame and can extend and retract along the length of the head frame. The pusher body is connected to the telescopic body. When the frame reaches the front end of the head frame, the telescopic body impacts the head frame and retracts, so that the pusher body moves toward the rear end of the head frame.

[0007] Furthermore, the telescopic body includes a first mounting frame and a first elastic element. The first mounting frame is slidably connected to the frame and can reciprocate along the length direction of the head frame. The first elastic element connects the frame and the first mounting frame to apply a force to the first mounting frame to move it toward the head end of the head frame. The pusher body is connected to the first mounting frame. When the frame reaches the head end of the head frame, the first mounting frame impacts the head frame and moves toward the tail end of the head frame.

[0008] Furthermore, the pusher body includes at least one pusher roller, each of which is arranged along the length direction perpendicular to the head frame and is fixedly connected to the first mounting frame.

[0009] Furthermore, the telescopic part includes a second mounting bracket and a second elastic element. The second mounting bracket is slidably connected to the frame and can reciprocate along the length direction of the head frame. The second elastic element connects the frame and the second mounting bracket to apply a force to the second mounting bracket to move it toward the head end of the head frame. The transmission part connects the second mounting bracket and the gripping part to convert the reciprocating movement of the second mounting bracket into the movement of the gripping part away from or toward the pushing mechanism. When the frame reaches the head end of the head frame, the second mounting bracket impacts the head frame and moves toward the tail end of the head frame.

[0010] Furthermore, the strap-holding part is an L-shaped strap-holding rod. The short rod of the strap-holding rod is inclined along the length direction of the head frame and is located on the side of the head frame, with its upstream end higher than its downstream end. The short rod of the strap-holding rod is rotatably connected to the frame and can rotate around its own axis. The long rod of the strap-holding rod is located below the water hose. During the rotation of the short rod of the strap-holding rod, the long rod of the strap-holding rod lifts or lowers the water hose.

[0011] Furthermore, the transmission unit is disposed on the side of the machine head frame, and includes a rack, a spur gear, a first axle, a first bevel gear, a second axle, and a second bevel gear. The rack is disposed along the length direction of the machine head frame and is fixedly connected to the second mounting bracket. The spur gear meshes with the rack. The first axle is coaxially fixedly connected to the spur gear and is also rotatably connected to the frame and can rotate around its own axis. The first bevel gear is coaxially fixedly connected to the first axle. The second axle is coaxially fixedly connected to the short rod of the strap rod. The second bevel gear is coaxially fixedly connected to the second axle and also meshes with the first bevel gear.

[0012] Furthermore, the locking mechanism includes a locking part, an elastic part, a pushing part, and a connecting part. The locking part is movably connected to the frame. The elastic part connects the frame and the locking part to apply an upward force to the locking part and to make the locking part abut against the bottom of the second mounting frame. During the process of the second mounting frame impacting the head frame and moving towards the tail end of the head frame, the locking part can slide from the bottom of the second mounting frame to the upstream side of the second mounting frame under the force of the elastic part. The pushing part is movably connected to the frame. The connecting part has a deformable structure and connects the locking part and the pushing part. When the frame reaches the tail end of the head frame, the pushing part impacts the head frame and pulls the locking part back to the bottom of the second mounting frame via the connecting part.

[0013] Furthermore, the locking part includes a locking rod and a locking wheel. The locking rod is arranged along the length direction of the head frame. The downstream end of the locking rod is hinged to the frame and can rotate in a vertical plane about its axis of rotation. The locking wheel is arranged at the upstream end of the locking rod. During the process of the second mounting bracket impacting the head frame and moving towards the tail end of the head frame, the locking wheel can slide from the bottom of the second mounting bracket to the upstream side of the second mounting bracket under the force of the elastic part.

[0014] Furthermore, the pushing part is a pushing rod, one end of which is hinged to the frame and can rotate in the horizontal plane around its axis of rotation. When the frame reaches the tail end of the machine head frame, the other end of the pushing rod strikes the machine head frame.

[0015] Compared with the prior art, the beneficial effects of this utility model include: During use, when the frame reaches the first end of the head frame, the telescopic part impacts the head frame, causing it to retract. Since the transmission unit can convert the retraction of the telescopic part into the movement of the belt-holding part approaching the belt-pushing mechanism, the belt-holding part and the belt-pushing mechanism together clamp the water hose. The locking mechanism locks the telescopic part in its retracted state. Then, the frame moves towards the tail end of the head frame, driving the water hose towards the tail end of the head frame. When the frame reaches the tail end of the head frame, the locking mechanism impacts the head frame and releases the telescopic part. The telescopic section extends, and because the transmission section can convert the extension of the telescopic section into the movement of the gripping section away from the pushing mechanism, the gripping section can release the water hose. The water hose is evenly stacked in the box at the tail end of the head frame. The water hose reel head clamping mechanism relies on its own mechanical structure to achieve the action of clamping or releasing the water hose. Compared with relying on electric or hydraulic systems, the mechanical mechanism has fewer failure points, higher reliability in harsh environments, and is more suitable for fire scenes. After the mechanical components wear out, they can be solved by simple replacement or repair, resulting in low maintenance costs. In addition, the mechanical linkage is highly instantaneous and has a fast response speed. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a water hose reel head clamping mechanism provided by this utility model; Figure 2 This is a three-dimensional structural diagram of a water hose reel head clamping mechanism provided by this utility model from another perspective; Figure 3 This is a three-dimensional structural diagram of a water hose reel head clamping mechanism provided by this utility model, omitting the push mechanism and the gripping mechanism; Figure 4 This is a three-dimensional structural schematic diagram of the push-belt mechanism provided by this utility model; Figure 5 This is a three-dimensional structural diagram of the carrying mechanism provided by this utility model; In the diagram: 100 - frame, 110 - first slide groove, 120 - second slide groove, 200 - push belt mechanism, 210 - telescopic body, 211 - first mounting frame, 212 - first elastic element, 220 - push belt body, 221 - push belt roller, 300 - belt clamping mechanism, 310 - telescopic part, 311 - second mounting frame, 312 - second elastic element, 320 - belt clamping part, 321 - belt clamping rod, 330 - transmission part, 331 - rack, 332 - flat gear, 333 - first wheel axle, 334 - first bevel gear, 335 - second wheel axle, 336 - second bevel gear, 400 - locking mechanism, 410 - locking part, 411 - locking rod, 412 - locking wheel, 420 - pushing part, 421 - pushing rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0018] This utility model provides a hose reel head clamping mechanism, wherein the hose reel head includes a head frame and a translation mechanism, and its structure is as follows: Figure 1 - Figure 5 As shown, the device includes a frame 100, a pushing mechanism 200, a holding mechanism 300, and a locking mechanism 400. The frame 100 is connected to the translation mechanism; the pushing mechanism 200 is connected to the frame 100; the holding mechanism 300 includes a telescopic part 310, a holding part 320, and a transmission part 330. The telescopic part 310 is connected to the frame 100 and can extend and retract along the length of the head frame. The transmission part 330 connects the telescopic part 310 and the holding part 320 to convert the extension and retraction of the telescopic part 310 into the locking mechanism 400. The movement of the strap 320 away from or towards the pusher mechanism 200 is described. When the frame 100 reaches the first end of the head frame, the telescopic part 310 impacts the head frame and retracts, so that the strap 320 and the pusher mechanism 200 together clamp the water hose. The locking mechanism 400 is connected to the frame 100 and is used to lock the telescopic part 310 in the retracted state. When the frame 100 reaches the last end of the head frame, the locking mechanism 400 impacts the head frame and releases the telescopic part 310.

[0019] In use, the frame 100 is connected to the translation mechanism. The translation mechanism can drive the frame 100 to reciprocate linearly along the length of the head frame. When the frame 100 reaches the head frame, the telescopic part 310 will impact the head frame and retract. Since the transmission part 330 can convert the retraction of the telescopic part 310 into the movement of the belt-holding part 320 approaching the pusher mechanism 200, when the telescopic part 310 retracts due to impacting the head frame, the belt-holding part 320 will approach the pusher mechanism 200 and clamp the water hose together with the pusher mechanism 200. The locking mechanism 400 locks the telescopic part 310 in the retracted state. Then, the frame 100 moves towards the tail end of the head frame, thereby driving the water hose towards the tail end of the head frame. When the frame 100 reaches the tail end of the head frame, the locking mechanism 400 impacts the head frame and releases the telescopic part 310. The telescopic part 310 extends. Since the transmission part 330 can convert the extension of the telescopic part 310 into the movement of the gripping part 320 away from the pushing mechanism 200, when the telescopic part 310 extends, the gripping part 320 will move away from the pushing mechanism 200, thereby releasing the hose. The hose is evenly stacked in the box at the tail end of the head frame. This hose reel clamping mechanism relies on its own mechanical structure to achieve the action of clamping or releasing the hose. Compared with relying on electric or hydraulic systems, the mechanical mechanism has fewer failure points, higher reliability in harsh environments, and is more suitable for fire scenes. After the mechanical components are worn, they can be solved by simple replacement or repair, resulting in low maintenance costs. Furthermore, the mechanical linkage is instantaneous and the response speed is fast.

[0020] As a preferred embodiment, please refer to Figure 2 and Figure 4The pusher mechanism 200 includes a telescopic body 210 and a pusher body 220. The telescopic body 210 is connected to the frame 100 and can extend and retract along the length of the head frame. The pusher body 220 is connected to the telescopic body 210. When the frame 100 reaches the first end of the head frame, the telescopic body 210 impacts the head frame and retracts, causing the pusher body 220 to move towards the tail end of the head frame. When the frame 100 reaches the first end of the head frame, the telescopic body 210 first impacts the head frame. At this time, the telescopic body 210 retracts, allowing the pusher body 220 to move towards the tail end of the head frame. The gap between the belt-holding part 320 and the pusher body 220 increases, facilitating the entry of the water belt into the belt-holding part 320 and the pusher body 220. Within the gap between the bodies 220, the telescopic part 310 then impacts the head frame. At this time, the telescopic part 310 retracts, allowing the strap-holding part 320 to approach the push-belt body 220. When the frame 100 moves toward the tail end of the head frame, both the telescopic body 210 and the telescopic part 310 separate from the head frame. Since the locking mechanism 400 clamps the telescopic part 310 in a retracted state, the telescopic part 310 can remain in a retracted state, while the telescopic body 210 releases compressive elastic potential energy. At this time, the telescopic body 210 extends, allowing the push-belt body 220 to move toward the head end of the head frame, that is, the push-belt body 220 approaches the strap-holding part 320, and the strap-holding part 320 and the push-belt body 220 together clamp the water hose.

[0021] As a preferred embodiment, please refer to Figure 4The telescopic body 210 includes a first mounting bracket 211 and a first elastic element 212. The first mounting bracket 211 is slidably connected to the frame 100 and can reciprocate along the length of the head frame. The first elastic element 212 connects the frame 100 and the first mounting bracket 211 to apply a force to the first mounting bracket 211, causing it to move toward the front end of the head frame. The pusher body 220 is connected to the first mounting bracket 211. When the frame 100 reaches the front end of the head frame, the first mounting bracket 211 impacts the head frame and moves toward the rear end of the head frame. The first mounting bracket 211 is slidably connected to the frame 100 and can reciprocate along the length of the head frame, serving as a guide and limiter. When the frame 100 reaches the head end of the head frame, the first mounting bracket 211 impacts the head frame and moves toward the tail end of the head frame. The first elastic element 212 is compressed and accumulates compressive elastic potential energy. When the first mounting bracket 211 separates from the head frame, the first mounting bracket 211 can move toward the head end of the head frame under the force of the first elastic element 212, thus resetting the first mounting bracket 211.

[0022] As a preferred embodiment, please refer to Figure 1 and Figure 4 The frame 100 is provided with a first slide groove 110 extending along the length direction of the head frame. The longitudinal support of the first mounting bracket 211 is slidably connected to the first slide groove 110, thereby guiding the movement of the first mounting bracket 211.

[0023] In a preferred embodiment, when the frame 100 reaches the first end of the head frame, the cross brace of the first mounting bracket 211 impacts the crossbeam at the first end of the head frame, and the first mounting bracket 211 moves toward the tail end of the head frame. The crossbeam at the first end of the head frame can push the first mounting bracket 211 in the opposite direction, so that the first mounting bracket 211 moves toward the tail end of the head frame.

[0024] In a preferred embodiment, the first elastic element 212 is a first gas spring, and the first gas spring is a Lipu YQ compression type.

[0025] As a preferred embodiment, please refer to Figure 2 and Figure 4 The pusher body 220 includes at least one pusher roller 221. Each pusher roller 221 is arranged along the length direction perpendicular to the head frame and is fixedly connected to the first mounting frame 211. The pusher roller 221 can be adapted to the water hose to improve the clamping effect of the water hose.

[0026] As a preferred embodiment, please refer to Figure 1 and Figure 5 The telescopic part 310 includes a second mounting bracket 311 and a second elastic member 312. The second mounting bracket 311 is slidably connected to the frame 100 and can reciprocate along the length of the head frame. The second elastic member 312 connects the frame 100 and the second mounting bracket 311 to apply a force to the second mounting bracket 311 to move it toward the head end of the head frame. The transmission part 330 connects the second mounting bracket 311 and the strap part 320 to convert the reciprocating movement of the second mounting bracket 311 into the movement of the strap part 320 away from or toward the pusher mechanism 200. When the frame 100 reaches the head end of the head frame, the second mounting bracket 311... The second mounting bracket 311 impacts the head frame and moves toward the tail end of the head frame. The second mounting bracket 311 is slidably connected to the frame 100 and can reciprocate along the length of the head frame, which can play a guiding and limiting role. When the frame 100 reaches the head end of the head frame, the second mounting bracket 311 impacts the head frame and moves toward the tail end of the head frame. The second elastic element 312 will be compressed and accumulate compressive elastic potential energy. When the second mounting bracket 311 separates from the head frame, the second mounting bracket 311 can move toward the head end of the head frame under the action of the second elastic element 312, realizing the reset of the second mounting bracket 311.

[0027] As a preferred embodiment, please refer to Figure 1 and Figure 5 The frame 100 is provided with a second slide groove 120 extending along the length direction of the head frame. The longitudinal support of the second mounting bracket 311 is slidably connected to the second slide groove 120, thereby guiding the movement of the second mounting bracket 311.

[0028] In a preferred embodiment, when the frame 100 reaches the first end of the head frame, both punches of the second mounting bracket 311 strike the impact plate at the first end of the head frame, and the second mounting bracket 311 moves toward the tail end of the head frame. The impact plate at the first end of the head frame can push the second mounting bracket 311 in the opposite direction, so that the second mounting bracket 311 moves toward the tail end of the head frame.

[0029] In a preferred embodiment, the second elastic element 312 is a second gas spring, and the first gas spring is a Lipu YQ compression type.

[0030] As a preferred embodiment, please refer to Figure 5The strap-holding part 320 is an L-shaped strap-holding rod 321. The short rod of the strap-holding rod 321 is inclined along the length direction of the machine head frame and is located on the side of the machine head frame, with its upstream end higher than its downstream end. The short rod of the strap-holding rod 321 is rotatably connected to the frame 100 and can rotate around its own axis. The long rod of the strap-holding rod 321 is located below the water hose. During the rotation of the short rod of the strap-holding rod 321, the long rod of the strap-holding rod 321 lifts or lowers the water hose. Because the short rod of the strap-holding rod 321 is inclined and its upstream end is higher than its downstream end, the strap-holding rod 321 can lift or lower the water hose. At the downstream end of its short rod, when it is necessary to clamp the water hose, the short rod of the belt clamping rod 321 rotates in the reverse direction, and the long rod of the belt clamping rod 321 can rotate obliquely upward from the side of the machine head frame to directly above the machine head frame, thereby lifting the water hose and cooperating with the pusher roller 221 to clamp the water hose. When it is necessary to release the water hose, the short rod of the belt clamping rod 321 rotates in the forward direction, and the long rod of the belt clamping rod 321 can rotate obliquely downward from directly above the machine head frame to the side of the machine head frame, thereby lowering the water hose and cooperating with the pusher roller 221 to release the water hose.

[0031] As a preferred embodiment, please refer to Figure 1 The clamping part 320 includes two parts, which are disposed opposite to each other on both sides of the head frame. The transmission part 330 includes two parts, one end of which is connected to the telescopic part 310, and the other end of which is connected to the clamping part 320 in a one-to-one correspondence. The two clamping parts 320 can improve the clamping effect on the water hose and prevent the water hose from falling off after shifting to one side.

[0032] As a preferred embodiment, please refer to Figure 1 and Figure 5The transmission unit 330 is disposed on the side of the machine head frame and includes a rack 331, a spur gear 332, a first axle 333, a first bevel gear 334, a second axle 335, and a second bevel gear 336. The rack 331 is arranged along the length direction of the machine head frame and is fixedly connected to the second mounting bracket 311. The spur gear 332 meshes with the rack 331. The first axle 333 is coaxially fixedly connected to the spur gear 332 and is also rotatably connected to the frame 100 and can rotate around its own axis. The first bevel gear 334 is connected to the first axle. The rack 331 is coaxially fixedly connected to the first bevel gear 334. The second axle 335 is coaxially fixedly connected to the short rod of the gripping rod 321. The second bevel gear 336 is coaxially fixedly connected to the second axle 335. The second bevel gear 336 also meshes with the first bevel gear 334. When the rack 331 reciprocates along the length of the machine head frame, the flat gear 332 will rotate and drive the first bevel gear 334 to rotate via the first axle 333, which in turn drives the second bevel gear 336 to rotate. Thus, the short rod of the gripping rod 321 can be driven to rotate forward or backward via the second axle 335.

[0033] As a preferred embodiment, please refer to Figure 1 and Figure 3The locking mechanism 400 includes a locking part 410, an elastic part, a pushing part 420, and a connecting part. The locking part 410 is movably connected to the frame 100. The elastic part connects the frame 100 and the locking part 410, applying an upward force to the locking part 410 and causing it to abut against the bottom of the second mounting bracket 311. During the process of the second mounting bracket 311 impacting the head frame and moving towards the tail end of the head frame, the locking part 410 can slide from the bottom of the second mounting bracket 311 to the upstream side of the second mounting bracket 311 under the force of the elastic part. The pushing part 420 is movably connected to the frame 100. The part has a deformable structure and connects the locking part 410 and the pushing part 420. When the frame 100 reaches the tail end of the machine head frame, the pushing part 420 impacts the machine head frame and pulls the locking part 410 back to below the second mounting bracket 311 via the connecting part. When the frame 100 reaches the head end of the machine head frame, the first mounting bracket 211 first impacts the machine head frame. At this time, the first elastic element 212 contracts, the pusher roller 221 moves towards the tail end of the machine head frame, and the gap between the belt holding rod 321 and the pusher roller 221 increases, making it easier for the water belt to enter the gap between the belt holding rod 321 and the pusher roller 221. Then, the second mounting bracket 31... 1. Upon impact with the head frame, the second elastic element 312 contracts, the rack 331 moves toward the tail end of the head frame, the spur gear 332 rotates forward, and drives the first bevel gear 334 to rotate forward via the first axle 333, which in turn drives the second bevel gear 336 to rotate in the opposite direction. This allows the short rod of the belt-holding rod 321 to rotate in the opposite direction via the second axle 335, and the long rod of the belt-holding rod 321 to rotate obliquely upward from the side of the head frame to directly above the head frame, thereby lifting the water hose. During the impact of the second mounting bracket 311 on the head frame and its movement toward the tail end of the head frame, the locking part 410 exerts force on the elastic part. The first mounting bracket 211 can slide from the bottom of the second mounting bracket 311 to the upstream side of the second mounting bracket 311, thereby limiting and locking the second mounting bracket 311. The second elastic member 312 remains in a contracted state. Then, the frame 100 moves towards the tail end of the machine head frame, and the first mounting bracket 211 separates from the machine head frame. Under the force of the first elastic member 212, the first mounting bracket 211 can move towards the head end of the machine head frame, realizing the reset of the first mounting bracket 211. That is, the pusher roller 221 approaches the long rod of the belt clamping rod 321, and the long rod of the belt clamping rod 321 and the pusher roller 221 together clamp the water belt. When the frame 100 reaches the tail end of the machine head frame,The pushing part 420 impacts the head frame and pulls the locking part 410 back to below the second mounting bracket 311 via the connecting part, thereby releasing the limiting lock on the second mounting bracket 311. Under the force of the second elastic member 312, the second mounting bracket 311 can move towards the front end of the head frame, realizing the reset of the second mounting bracket 311. The flat gear 332 will rotate in the reverse direction and drive the first bevel gear 334 to rotate in the reverse direction via the first wheel axle 333, which in turn drives the second bevel gear 336 to rotate in the forward direction. This allows the short rod of the belt-holding rod 321 to rotate in the forward direction via the second wheel axle 335. The long rod of the belt-holding rod 321 can rotate diagonally downward from directly above the head frame to the side of the head frame, thereby lowering the water hose and cooperating with the pusher roller 221 to release the water hose. The water hose is evenly stacked in the box at the rear end of the head frame.

[0034] As a preferred embodiment, please refer to Figure 3 The locking part 410 includes a locking rod 411 and a locking wheel 412. The locking rod 411 is arranged along the length direction of the head frame. The downstream end of the locking rod 411 is hinged to the frame 100 and can rotate in a vertical plane around its axis of rotation. The locking wheel 412 is arranged at the upstream end of the locking rod 411. During the process of the second mounting bracket 311 impacting the head frame and moving towards the tail end of the head frame, the locking wheel 412 can slide from the bottom of the second mounting bracket 311 to the upstream side of the second mounting bracket 311 under the action of the elastic part. When the locking wheel 412 slides from the bottom of the second mounting bracket 311 to the upstream side of the second mounting bracket 311 under the action of the elastic part, the locking wheel 412 blocks and locks the second mounting bracket 311.

[0035] In a preferred embodiment, during the process of the second mounting bracket 311 impacting the head frame and moving towards the tail end of the head frame, the locking wheel 412 can slide from the bottom of the cross brace of the second mounting bracket 311 to the upstream side of the cross brace of the second mounting bracket 311 under the force of the elastic part, and the locking wheel 412 blocks and locks the cross brace of the second mounting bracket 311.

[0036] In a preferred embodiment, the elastic part is a torsion spring.

[0037] As a preferred embodiment, please refer to Figure 3The pushing part 420 is a pushing rod 421. One end of the pushing rod 421 is hinged to the frame 100 and can rotate around its axis of rotation in the horizontal plane. When the frame 100 reaches the tail end of the machine head frame, the other end of the pushing rod 421 strikes the machine head frame.

[0038] In a preferred embodiment, the connecting part is a connecting rope. One end of the connecting rope is connected to the locking rod 411, and the other end of the connecting rope is connected to one end of the push rod 421. When the frame 100 reaches the tail end of the machine head frame, the other end of the push rod 421 strikes the machine head frame, which pulls the locking rod 411 downward through the connecting rope, thereby pulling the locking wheel 412 back to below the second mounting bracket 311 and releasing the locking of the locking wheel 412.

[0039] As a preferred embodiment, please refer to Figure 1 and Figure 3 The locking mechanism 400 includes two parts, which are disposed opposite to each other on both sides of the head frame, thereby improving the locking effect on the second mounting bracket 311.

[0040] In a preferred embodiment, when the frame 100 reaches the tail end of the head frame, the other ends of the two push rods 421 respectively strike the unlocking rods on both sides of the tail end of the head frame.

[0041] To better understand this utility model, the following is combined with... Figure 1 - Figure 5 The working principle of the technical solution of this utility model will be described in detail below: In use, the frame 100 is connected to the translation mechanism. The translation mechanism can drive the frame 100 to reciprocate linearly along the length of the head frame. When the frame 100 reaches the head frame, the first mounting bracket 211 first impacts the head frame. At this time, the first elastic element 212 retracts, and the pusher roller 221 moves towards the tail end of the head frame. The gap between the belt holding rod 321 and the pusher roller 221 increases, making it easier for the water belt to enter the gap between the belt holding rod 321 and the pusher roller 221. Then, the second mounting bracket 311 impacts the head frame again. At this time, the second elastic element 312 retracts, and the rack 331 moves towards the tail end of the head frame. As the tail end of the head frame moves, the spur gear 332 rotates forward, driving the first bevel gear 334 to rotate forward via the first axle 333, which in turn drives the second bevel gear 336 to rotate in the opposite direction. This allows the short rod of the belt-holding rod 321 to rotate in the opposite direction via the second axle 335. The long rod of the belt-holding rod 321 can rotate diagonally upwards from the side of the head frame to directly above it, thus lifting the water hose. During the process of the second mounting bracket 311 impacting the head frame and moving towards its tail end, the locking wheel 412, under the force of the elastic part, can slide from the bottom of the second mounting bracket 311 to its upstream side, thereby... The second mounting bracket 311 can be locked in a limiting position, and the second elastic element 312 remains in a contracted state. Then, the frame 100 moves towards the tail end of the machine head frame, and the first mounting bracket 211 separates from the machine head frame. Under the force of the first elastic element 212, the first mounting bracket 211 can move towards the head end of the machine head frame, realizing the reset of the first mounting bracket 211. That is, the push roller 221 approaches the long rod of the belt clamping rod 321, and the long rod of the belt clamping rod 321 and the push roller 221 together clamp the water belt. When the frame 100 reaches the tail end of the machine head frame, the other end of the push rod 421 strikes the machine head frame and locks the belt via the connecting rope. The fixed wheel 412 is pulled back to below the second mounting bracket 311, thereby releasing the limiting lock on the second mounting bracket 311. Under the force of the second elastic element 312, the second mounting bracket 311 can move towards the front end of the machine head frame, realizing the reset of the second mounting bracket 311. The spur gear 332 will rotate in the reverse direction, and drive the first bevel gear 334 to rotate in the reverse direction via the first wheel axle 333, which in turn drives the second bevel gear 336 to rotate in the forward direction. This allows the short rod of the belt-holding rod 321 to rotate in the forward direction via the second wheel axle 335. The long rod of the belt-holding rod 321 can rotate diagonally downwards from directly above the machine head frame to the side of the machine head frame, thereby lowering the water hose.The hose reel, in conjunction with the push roller 221, releases the hose, which is then evenly stacked within the housing at the tail end of the head frame. This hose reel clamping mechanism, relying on its own mechanical structure, clamps or releases the hose. Compared to systems relying on electricity or hydraulics, this mechanical mechanism has fewer potential failure points, higher reliability in harsh environments, and is more suitable for fire scenes. Wear and tear on mechanical components can be easily addressed through replacement or repair, resulting in lower maintenance costs. Furthermore, it offers strong instantaneous mechanical linkage and a fast response time.

[0042] The hose reel head clamping mechanism provided by this utility model has the following beneficial effects: (1) When the frame 100 reaches the first end of the machine head frame, the first mounting bracket 211 first impacts the machine head frame. At this time, the first elastic element 212 contracts, the pusher roller 221 moves toward the tail end of the machine head frame, and the gap between the belt holding rod 321 and the pusher roller 221 increases, making it easier for the water belt to enter the gap between the belt holding rod 321 and the pusher roller 221. (2) During the process of the second mounting bracket 311 impacting the head frame and moving towards the tail end of the head frame, the locking wheel 412 can slide from the bottom of the second mounting bracket 311 to the upstream side of the second mounting bracket 311 under the force of the elastic part, thereby blocking and locking the second mounting bracket 311. When the frame 100 reaches the tail end of the head frame, the other end of the push rod 421 impacts the head frame and pulls the locking part 410 back to the bottom of the second mounting bracket 311 via the connecting rope, thereby releasing the blocking and locking of the second mounting bracket 311. (3) The water hose reel head clamping mechanism relies on its own mechanical structure to clamp or release the water hose. Compared with relying on electric or hydraulic systems, the mechanical mechanism has fewer failure points, higher reliability in harsh environments, and is more suitable for fire scenes. After the mechanical components are worn, they can be solved by simple replacement or repair, resulting in low maintenance costs. Furthermore, the mechanical linkage is highly instantaneous and has a fast response speed.

[0043] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A hose reel head clamp mechanism, the hose reel head comprising a head frame and a translation mechanism, characterised in that, include: The frame is connected to the translation mechanism; A push-belt mechanism, which is connected to the frame; The belt-clamping mechanism includes a telescopic part, a belt-clamping part, and a transmission part. The telescopic part is connected to the frame and can extend and retract along the length of the head frame. The transmission part connects the telescopic part and the belt-clamping part to convert the extension and retraction of the telescopic part into the movement of the belt-clamping part away from or towards the push-belt mechanism. When the frame reaches the head end of the head frame, the telescopic part impacts the head frame and retracts, so that the belt-clamping part and the push-belt mechanism together clamp the water hose. A locking mechanism is connected to the frame and is used to lock the telescopic part in the retracted state. When the frame reaches the tail end of the head frame, the locking mechanism strikes the head frame and releases the telescopic part.

2. The hose reel head clamp mechanism of claim 1, wherein, The pusher mechanism includes a telescopic body and a pusher body. The telescopic body is connected to the frame and can extend and retract along the length of the head frame. The pusher body is connected to the telescopic body. When the frame reaches the front end of the head frame, the telescopic body impacts the head frame and retracts, so that the pusher body moves toward the rear end of the head frame.

3. The hose reel head clamping mechanism according to claim 2, characterized in that, The telescopic body includes a first mounting frame and a first elastic element. The first mounting frame is slidably connected to the frame and can reciprocate along the length of the head frame. The first elastic element connects the frame and the first mounting frame to apply a force to the first mounting frame to move it toward the head end of the head frame. The pusher body is connected to the first mounting frame. When the frame reaches the head end of the head frame, the first mounting frame impacts the head frame and moves toward the tail end of the head frame.

4. The hose reel head clamping mechanism according to claim 3, characterized in that, The pusher body includes at least one pusher roller, each of which is arranged along the length direction perpendicular to the head frame and is fixedly connected to the first mounting frame.

5. The hose reel head clamping mechanism according to claim 1, characterized in that, The telescopic part includes a second mounting bracket and a second elastic element. The second mounting bracket is slidably connected to the frame and can reciprocate along the length direction of the head frame. The second elastic element connects the frame and the second mounting bracket to apply a force to the second mounting bracket to move it toward the head end of the head frame. The transmission part connects the second mounting bracket and the gripping part to convert the reciprocating movement of the second mounting bracket into the movement of the gripping part away from or toward the pushing mechanism. When the frame reaches the head end of the head frame, the second mounting bracket impacts the head frame and moves toward the tail end of the head frame.

6. The hose reel head clamp mechanism of claim 5, wherein, The strap-holding part is an L-shaped strap-holding rod. The short rod of the strap-holding rod is inclined along the length direction of the machine head frame and is located on the side of the machine head frame. The upstream end of the short rod is higher than the downstream end of the short rod. The short rod of the strap-holding rod is rotatably connected to the frame and can rotate around its own axis. The long rod of the strap-holding rod is located below the water hose. During the rotation of the short rod of the strap-holding rod, the long rod of the strap-holding rod lifts or lowers the water hose.

7. The hose reel head clamp mechanism of claim 6, wherein, The transmission unit is disposed on the side of the machine head frame and includes a rack, a spur gear, a first axle, a first bevel gear, a second axle, and a second bevel gear. The rack is arranged along the length of the machine head frame and is fixedly connected to the second mounting bracket. The spur gear meshes with the rack. The first axle is coaxially fixedly connected to the spur gear and is also rotatably connected to the frame and can rotate around its own axis. The first bevel gear is coaxially fixedly connected to the first axle. The second axle is coaxially fixedly connected to the short rod of the strap rod. The second bevel gear is coaxially fixedly connected to the second axle and also meshes with the first bevel gear.

8. The hose reel head clamping mechanism according to claim 5, characterized in that, The locking mechanism includes a locking part, an elastic part, a pushing part, and a connecting part. The locking part is movably connected to the frame. The elastic part connects the frame and the locking part to apply an upward force to the locking part and to make the locking part abut against the bottom of the second mounting frame. During the process of the second mounting frame impacting the head frame and moving towards the tail end of the head frame, the locking part can slide from the bottom of the second mounting frame to the upstream side of the second mounting frame under the force of the elastic part. The pushing part is movably connected to the frame. The connecting part has a deformable structure and connects the locking part and the pushing part. When the frame reaches the tail end of the head frame, the pushing part impacts the head frame and pulls the locking part back to the bottom of the second mounting frame via the connecting part.

9. The hose reel head clamp mechanism of claim 8, wherein, The locking part includes a locking rod and a locking wheel. The locking rod is arranged along the length direction of the head frame. The downstream end of the locking rod is hinged to the frame and can rotate in a vertical plane about its axis of rotation. The locking wheel is arranged at the upstream end of the locking rod. During the process of the second mounting bracket impacting the head frame and moving towards the tail end of the head frame, the locking wheel can slide from the bottom of the second mounting bracket to the upstream side of the second mounting bracket under the force of the elastic part.

10. The hose reel head clamp mechanism of claim 8, wherein, The pushing part is a pushing rod. One end of the pushing rod is hinged to the frame and can rotate in the horizontal plane around its axis of rotation. When the frame reaches the tail end of the machine head frame, the other end of the pushing rod strikes the machine head frame.

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