A hose reel head rear pressure mechanism, rear end structure, and hose laying vehicle

Abstract

This utility model discloses a rear pressure belt mechanism, a rear end structure, and a hose laying vehicle for a hose reel head. The rear pressure belt mechanism includes a rear pressure belt, a telescopic drive component, and a transmission assembly. One end of the rear pressure belt is hinged to the head frame. The telescopic drive component is located on the side of the head frame, with one end hinged to the head frame. The transmission assembly is located on the side of the head frame. The advantages of this utility model are: in this rear pressure belt mechanism, the telescopic drive component is not directly connected to the rear pressure belt, so the height of the rear pressure belt is not limited by the length of the telescopic drive component, effectively reducing the height of the rear pressure belt and lowering the overall height of the rear end of the reel head; moreover, the telescopic drive component is placed at the far end and only drives the rear pressure belt to lift via a connecting rod, reducing the width of the telescopic drive component at the drive wheel and thus reducing the width of the rear end of the reel head.

Description

Technical Field

[0001] This utility model relates to the field of fire truck technology, and in particular to a hose reel head rear pressure mechanism, rear end structure, and hose laying vehicle. 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 operations. The winding head includes a head frame, a rear drive pulley, and a rear pressure mechanism. Both the rear drive pulley and the rear pressure mechanism are movably mounted at the rear end of the head frame. When the rear pressure mechanism abuts against the rear drive pulley, it presses the hose located at the rear end of the head frame. When the rear pressure mechanism separates from the rear drive pulley, it releases the hose located at the rear end of the head frame. In the aforementioned rear end structure of the winding head, one end of the rear pressure mechanism is hinged to the head frame, the lower end of the rear pressure hydraulic cylinder is connected to the head frame, and the higher end of the rear pressure hydraulic cylinder... Connected to the other end of the rear pressure belt, the extension and retraction of the rear pressure belt hydraulic cylinder can drive the rear pressure belt to rotate forward or backward around the rotary shaft at one end, so that the other end of the rear pressure belt can be engaged or disengaged from the rear drive pulley. However, due to the small thickness of the head frame and the minimum length of the rear pressure belt hydraulic cylinder being greater than the thickness of the head frame, if the rear pressure belt hydraulic cylinder is directly hinged to the rear pressure belt, the rear pressure belt needs to be set higher. This results in a higher overall height of the rear end of the water hose reel head, and there are many hydraulic and mechanical components near the rear pressure belt. When the rear pressure belt hydraulic cylinder is directly hinged to the rear pressure belt, it will share the overall width with other components, resulting in a wider rear end of the water hose reel head. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a rear pressing mechanism, rear end structure and water hose laying vehicle for a water hose winding head, thereby solving the technical problem that the rear end of the water hose winding head is relatively high and wide in the prior art.

[0005] To achieve the above technical objectives, the present invention provides a rear pressure mechanism for a hose reel head, which is disposed at the rear end of the head frame of the hose reel head, and includes: The rear pressure belt has one end hinged to the head frame; A telescopic drive component is disposed on the side of the head frame, and one end of which is hinged to the head frame. A transmission assembly is disposed on the side of the head frame, with one end connected to the other end of the telescopic drive member and the other end connected to the rear pressure belt, so as to convert the horizontal extension and retraction of the telescopic drive member into the rotation of the rear pressure belt, and to cause the other end of the rear pressure belt to abut or separate from the rear drive pulley.

[0006] Furthermore, the rear pressure belt includes two rocker arms, a rear end plate, and a rear pressure roller. The two rocker arms are arranged parallel to and opposite to each other along the length of the head frame, and one end of each rocker arm is hinged to the head frame. The rear end plate is arranged horizontally along the width of the head frame, and both ends of the rear end plate are fixedly connected to the other ends of the two rocker arms. The rear pressure roller is arranged horizontally along the width of the head frame, and both ends of the rear pressure roller are rotatably connected to the two ends of the rear end plate. The other end of the transmission assembly is connected to the rocker arms, and the rear pressure roller abuts against or separates from the rear drive pulley.

[0007] Furthermore, the telescopic drive component is located at the front end of the rear pressure belt.

[0008] Furthermore, the other end of the transmission assembly is connected to the middle of the rear pressure belt.

[0009] Furthermore, the transmission assembly includes a first link and a second link. The end of the first link near the telescopic drive member is detachably and fixedly connected to the other end of the telescopic drive member. The lower end of the second link is hinged to the end of the first link away from the telescopic drive member. The upper end of the second link is fixedly connected to the rear pressure belt.

[0010] Furthermore, the second link has an arc-shaped structure.

[0011] Furthermore, the telescopic drive component includes two components, which are disposed opposite to each other on both sides of the head frame.

[0012] Furthermore, the transmission assembly includes two components, which are disposed opposite to each other on both sides of the head frame, and the other ends of the two transmission assemblies are connected to the two rocker arms one by one.

[0013] On the other hand, this utility model also provides a rear end structure of a water hose reel head, including a head frame, a rear drive pulley and the aforementioned water hose reel head rear pressure mechanism, wherein the rear drive pulley is located at the rear end of the head frame.

[0014] On the other hand, this utility model also provides a hose laying vehicle, including the aforementioned hose reel head rear end structure.

[0015] Compared with the prior art, the beneficial effects of this utility model include: when the telescopic drive member extends or retracts in the horizontal direction, the extension or retraction of the telescopic drive member in the horizontal direction can be converted into the rotation of the rear pressure belt through the transmission component, so that the other end of the rear pressure belt abuts or separates from the rear drive pulley. In this water hose reel head rear pressure belt mechanism, the telescopic drive member is not directly connected to the rear pressure belt, so that the height of the rear pressure belt is not limited by the length of the telescopic drive member, which can effectively reduce the height of the rear pressure belt and reduce the overall height of the rear end of the reel head. Moreover, the telescopic drive member is placed at the far end and only drives the rear pressure belt to lift through the connecting rod, which reduces the width of the telescopic drive member at the drive wheel and reduces the width of the rear end of the reel head. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the rear end structure of a water hose reel head provided by this utility model when the rear pressure belt abuts against the rear drive pulley; Figure 2 This is a three-dimensional structural diagram of the rear end structure of a water hose reel head provided by this utility model when the rear pressure belt is separated from the rear drive pulley; In the diagram: 100 - head frame, 110 - side plate, 111 - slot, 120 - first ear seat, 130 - second ear seat, 140 - baffle, 200 - rear pressure belt, 210 - rocker arm, 220 - rear end plate, 230 - rear pressure roller, 300 - telescopic drive component, 400 - transmission assembly, 410 - first connecting rod, 420 - second connecting 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 rear pressure mechanism for a hose reel head, which is located at the rear end of the head frame 100 of the hose reel head, and its structure is as follows: Figure 1 - Figure 2 As shown, the device includes a rear pressure belt 200, a telescopic drive component 300, and a transmission assembly 400. One end of the rear pressure belt 200 is hinged to the head frame 100. The telescopic drive component 300 is located on the side of the head frame 100, with one end hinged to the head frame 100. The transmission assembly 400 is located on the side of the head frame 100, with one end connected to the other end of the telescopic drive component 300 and the other end connected to the rear pressure belt 200. This allows the horizontal extension and retraction of the telescopic drive component 300 to be converted into rotation of the rear pressure belt 200, and the other end of the rear pressure belt 200 to abut or separate from the rear drive pulley.

[0019] When the telescopic drive 300 extends or retracts in the horizontal direction, the transmission assembly 400 can convert the horizontal extension or retraction of the telescopic drive 300 into the rotation of the rear pressure belt 200, thereby causing the other end of the rear pressure belt 200 to abut or separate from the rear drive pulley. In this hose reel head rear pressure belt mechanism, the telescopic drive 300 is far away from the rear pressure belt 200. When designing the height of the rear pressure belt 200, there is no need to consider the minimum length of the telescopic drive 300, which can effectively reduce the height of the rear pressure belt 200, thereby reducing the overall height of the rear end of the hose reel head. Furthermore, the telescopic drive 300 is far from the tail of the head frame 100, thus avoiding various hydraulic and mechanical components at the tail of the head frame 100, thereby reducing the overall width of the rear end of the hose reel head.

[0020] As a preferred embodiment, please refer to Figure 1 and Figure 2 The rear pressure belt 200 includes two rocker arms 210, a rear end plate 220, and a rear pressure roller 230. The two rocker arms 210 are parallel to and opposite each other along the length of the head frame 100, and one end of each rocker arm 210 is hinged to the head frame 100. The rear end plate 220 is horizontally arranged along the width of the head frame 100, and both ends of the rear end plate 220 are fixedly connected to the other ends of the two rocker arms 210, respectively. The rear pressure roller 230 is located along the width of the head frame 100. The rear pressure roller 230 is horizontally arranged in the horizontal direction, and its two ends are rotatably connected to the two ends of the rear end plate 220. The other end of the transmission assembly 400 is connected to the rocker arm 210. The rear pressure roller 230 abuts or separates from the rear drive pulley. When the telescopic drive member 300 extends or retracts in the horizontal direction, the extension or retraction of the telescopic drive member 300 in the horizontal direction can be converted into the rotation of the two rocker arms 210 through the transmission assembly 400, thereby causing the rear pressure roller 230 to abut or separate from the rear drive pulley.

[0021] As a preferred embodiment, please refer to Figure 1 and Figure 2 The telescopic drive 300 is disposed at the front end of the rear pressure belt 200, so that the horizontal extension and retraction of the telescopic drive 300 can be converted into the rotation of the rear pressure belt 200 through the transmission assembly 400.

[0022] In a preferred embodiment, the telescopic drive component 300 is a hydraulic cylinder.

[0023] As a preferred embodiment, please refer to Figure 1 and Figure 2The other end of the transmission component 400 is connected to the middle of the rear pressure belt 200, so that the other end of the rear pressure belt 200 can have a larger rotation range while the telescopic drive component 300 has the same telescopic amount.

[0024] As a preferred embodiment, please refer to Figure 1 and Figure 2 The transmission assembly 400 includes a first connecting rod 410 and a second connecting rod 420. The end of the first connecting rod 410 near the telescopic drive member 300 is detachably and fixedly connected to the other end of the telescopic drive member 300. The lower end of the second connecting rod 420 is hinged to the end of the first connecting rod 410 away from the telescopic drive member 300. The upper end of the second connecting rod 420 is fixedly connected to the rear pressure belt 200. When the telescopic drive member 300 extends or retracts in the horizontal direction, it will drive the first connecting rod 410 to move in the horizontal direction. Since the lower end of the second connecting rod 420 is hinged to the end of the first connecting rod 410 away from the telescopic drive member 300, the second connecting rod 420 can move in the vertical direction. This can convert the horizontal extension or retraction of the telescopic drive member 300 into the rotation of the rear pressure belt 200, thereby causing the other end of the rear pressure belt 200 to abut or separate from the rear drive pulley.

[0025] As a preferred embodiment, please refer to Figure 1 and Figure 2 The first connecting rod 410 is a straight rod structure, and the first connecting rod 410 is parallel to the extension and retraction direction of the telescopic drive member 300, thereby facilitating the conversion of the horizontal extension and retraction of the telescopic drive member 300 into the vertical movement of the second connecting rod 420.

[0026] As a preferred embodiment, please refer to Figure 1 and Figure 2 The second connecting rod 420 has an arc-shaped structure. When the telescopic drive member 300 extends or retracts in the horizontal direction, it will drive the first connecting rod 410 to move in the horizontal direction. Since the lower end of the second connecting rod 420 is hinged to the end of the first connecting rod 410 away from the telescopic drive member 300, and the second connecting rod 420 has an arc-shaped structure, the second connecting rod 420 can move in the vertical direction. This can convert the horizontal extension or retraction of the telescopic drive member 300 into the rotation of the rear pressure belt 200, so that the other end of the rear pressure belt 200 abuts or separates from the rear drive pulley.

[0027] As a preferred embodiment, please refer to Figure 1 and Figure 2The telescopic drive component 300 includes two components, which are disposed opposite to each other on both sides of the head frame 100, thereby improving the stability of the rear pressure belt 200 during rotation.

[0028] As a preferred embodiment, please refer to Figure 1 and Figure 2 The transmission assembly 400 includes two components, which are disposed opposite to each other on both sides of the head frame 100. The other end of each transmission assembly 400 is connected to one of the two rocker arms 210, which can improve the stability of the rear pressure belt 200 during rotation.

[0029] Please refer to Figure 1 and Figure 2 Based on the aforementioned hose reel head rear pressure mechanism, this utility model also provides a hose reel head rear end structure, including a head frame 100, a rear drive pulley, and the aforementioned hose reel head rear pressure mechanism. The rear drive pulley is located at the rear end of the head frame 100. When the telescopic drive member 300 extends or retracts in the horizontal direction, it drives the first connecting rod 410 to move in the horizontal direction. Since the lower end of the second connecting rod 420 is hinged to the end of the first connecting rod 410 away from the telescopic drive member 300, the second connecting rod 420 can move in the vertical direction. This allows the horizontal extension or retraction of the telescopic drive member 300 to be converted into the rotation of the rear pressure belt 200, thereby causing the other end of the rear pressure belt 200 to abut or separate from the rear drive pulley, thus achieving the pressing or releasing of the hose by the rear drive pulley.

[0030] As a preferred embodiment 1 and Figure 2 Please refer to the figure. The head frame 100 includes two side plates 110, two first ear seats 120, two second ear seats 130, and two baffles 140. The two first ear seats 120 are fixedly mounted on the top surfaces of the two side plates 110, the two second ear seats 130 are fixedly mounted on the side walls of the two side plates 110, and the two baffles 140 are fixedly mounted on the side walls of the two side plates 110. A gap exists between each baffle 140 and its corresponding side plate 110 to form a limiting area. Between them, one end of each of the two rocker arms 210 is hinged to one of the two first lugs 120, the fixed end of each of the two telescopic drive members 300 is hinged to one of the two second lugs 130, and the two first connecting rods 410 pass through the two limiting intervals, thereby allowing the two rocker arms 210 to rotate relative to the head frame 100, the two telescopic drive members 300 to swing slightly relative to the head frame 100, and the two baffles 140 to limit the two first connecting rods 410.

[0031] As a preferred embodiment, please refer to Figure 1 and Figure 2 Each of the two side plates 110 has a slot 111, and the two second connecting rods 420 pass through the two slots 111 one by one. The two slots 111 can limit the two second connecting rods 420 to a certain extent.

[0032] Please refer to Figure 1 and Figure 2 Based on the aforementioned hose reel head rear end structure, this utility model also provides a hose laying vehicle, including the aforementioned hose reel head rear end structure.

[0033] To better understand this utility model, the following is combined with... Figure 1 - Figure 2 The working principle of the technical solution of this utility model will be described in detail below: When the telescopic drive member 300 extends or retracts horizontally, it drives the first connecting rod 410 to move horizontally. Since the lower end of the second connecting rod 420 is hinged to the end of the first connecting rod 410 away from the telescopic drive member 300, and the second connecting rod 420 has an arc-shaped structure, it can move vertically. This converts the horizontal extension or retraction of the telescopic drive member 300 into the rotation of the two rocker arms 210, thereby causing the rear pressure roller 230 and the rear drive... When the pulley abuts or separates, the rear pressure belt mechanism of the hose reel head has the telescopic drive 300 located far from the rear pressure belt 200. When designing the height of the rear pressure belt 200, the minimum length of the telescopic drive 300 does not need to be considered, which can effectively reduce the height of the rear pressure belt 200 and lower the overall height of the rear end of the hose reel head. Furthermore, the telescopic drive 300 is far from the tail of the head frame 100, which can avoid various hydraulic and mechanical components at the tail of the head frame 100, thus reducing the overall width of the rear end of the hose reel head.

[0034] The hose reel head pressure mechanism, rear end structure, and hose laying vehicle provided by this utility model have the following beneficial effects: (1) The telescopic drive component 300 includes two components, and the transmission component 400 includes two components. The two telescopic drive components 300 are arranged opposite to each other on both sides of the head frame 100, and the two transmission components 400 are arranged opposite to each other on both sides of the head frame 100. The other end of the two transmission components 400 is connected to the two rocker arms 210 in a one-to-one correspondence, which can improve the stability of the rear pressure belt 200 during rotation. (2) When the telescopic drive 300 extends or retracts in the horizontal direction, it will drive the first connecting rod 410 to move in the horizontal direction. Since the lower end of the second connecting rod 420 is hinged to the end of the first connecting rod 410 away from the telescopic drive 300, and the second connecting rod 420 has an arc structure, the second connecting rod 420 can move in the vertical direction, thereby converting the extension or retraction of the telescopic drive 300 in the horizontal direction into the rotation of the two rocker rods 210. (3) In the rear pressure belt mechanism of the hose reel head, the telescopic drive 300 is far away from the rear pressure belt 200. When designing the height of the rear pressure belt 200, there is no need to consider the minimum length of the telescopic drive 300, which can effectively reduce the height of the rear pressure belt 200, thereby reducing the overall height of the rear end of the hose reel head. In addition, the telescopic drive 300 is far away from the tail of the head frame 100, which can avoid various hydraulic and mechanical components at the tail of the head frame 100, thereby reducing the overall width of the rear end of the hose reel head.

[0035] 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 rear pressing mechanism for a hose reel head, which is disposed at the rear end of the head frame of the hose reel head, characterized in that, include: The rear pressure belt has one end hinged to the head frame; A telescopic drive component is disposed on the side of the head frame, and one end of which is hinged to the head frame. A transmission assembly is disposed on the side of the head frame, with one end connected to the other end of the telescopic drive member and the other end connected to the rear pressure belt, so as to convert the horizontal extension and retraction of the telescopic drive member into the rotation of the rear pressure belt, and to cause the other end of the rear pressure belt to abut or separate from the rear drive pulley.

2. The hose reel head pressing mechanism according to claim 1, characterized in that, The rear pressure belt includes two rocker arms, a rear end plate, and a rear pressure roller. The two rocker arms are arranged parallel to each other along the length of the head frame and opposite each other, and one end of each rocker arm is hinged to the head frame. The rear end plate is arranged horizontally along the width of the head frame, and both ends of the rear end plate are fixedly connected to the other ends of the two rocker arms. The rear pressure roller is arranged horizontally along the width of the head frame, and both ends of the rear pressure roller are rotatably connected to the two ends of the rear end plate. The other end of the transmission assembly is connected to the rocker arms, and the rear pressure roller abuts against or separates from the rear drive pulley.

3. The hose reel head pressing mechanism according to claim 1, characterized in that, The telescopic drive component is located at the front end of the rear pressure belt.

4. The hose reel head pressing mechanism according to claim 1, characterized in that, The other end of the transmission assembly is connected to the middle of the rear pressure belt.

5. The hose reel head pressing mechanism according to claim 4, characterized in that, The transmission assembly includes a first link and a second link. The end of the first link near the telescopic drive member is detachably and fixedly connected to the other end of the telescopic drive member. The lower end of the second link is hinged to the end of the first link away from the telescopic drive member. The upper end of the second link is fixedly connected to the rear pressure belt.

6. The hose reel head pressing mechanism according to claim 5, characterized in that, The second connecting rod has an arc-shaped structure.

7. The hose reel head pressing mechanism according to claim 2, characterized in that, The telescopic drive component includes two components, which are disposed opposite to each other on both sides of the head frame.

8. The hose reel head pressing mechanism according to claim 7, characterized in that, The transmission assembly includes two components, which are disposed opposite to each other on both sides of the head frame, and the other end of each component is connected to one of the two rocker arms.

9. A rear end structure of a water hose reel head, characterized in that, It includes a head frame, a rear drive pulley, and a rear pressure belt mechanism for a water hose reel as described in any one of claims 1-8, wherein the rear drive pulley is located at the rear end of the head frame.

10. A hose laying vehicle, characterized in that, Includes the rear end structure of the hose reel head as described in claim 9.

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