Hose on-off device and operating machinery

Abstract

The present invention relates to the field of operating machinery, and provides a hose on-off device and an operating machinery. The hose on-off device comprises: an upper pressure assembly, which is arranged on one side of the hose; a lower pressure assembly, which is arranged on the other side of the hose; and the lower pressure assembly and the upper pressure assembly cut off the hose as the box is lifted, and connect the hose as the box is lowered. The hose on-off device and the operating machinery provided by the present invention are provided with an upper pressure assembly and a lower pressure assembly, and are respectively arranged on both sides of the hose. The lower pressure assembly and the upper pressure assembly cut off the hose as the box is lifted, and connect the hose as the box is lowered. The upper pressure assembly and the lower pressure assembly are reliable and durable, with high strength, and can meet the life cycle of the product, avoiding the use of the telescopic tube after repeated use, resulting in sewage leakage due to poor elasticity.

Description

Technical Field

[0001] The present invention relates to the technical field of operating machinery, and in particular to a hose on-off device and an operating machinery. Background Art

[0002] Because the roads are covered with dust, sanitation road sweepers generally adopt a water sprinkling and dust reduction operation mode during work. In order to increase the operating time of sanitation road sweepers, road sweepers usually include garbage bins and sewage circulation systems. The sewage collected at the bottom of the garbage bin is filtered through a filter net and returned to the ground through the sewage circulation system for recycling, thereby increasing the operating time.

[0003] After the sanitation road sweeper completes its operation, the garbage bin needs to be lifted to a high position for unloading. In the existing technology, a retractable sewage pipe is usually used to connect the bottom of the garbage bin and the sewage pipe of the frame to enable the sewage pipe to automatically extend during the lifting process of the garbage bin, ensuring that the sewage pipe is completely sealed and there will be no sewage leakage.

[0004] However, since the distance between the bottom of the trash bin and the frame is large after lifting, the retractable sewage pipe is required to be flexible and retractable, and there is a large amount of mud and sand in the sewage, a large amount of silt will remain on the wall of the retractable sewage pipe. After a period of use, the retractable sewage pipe cannot be accurately retracted, and the trash bin will inevitably break the sewage pipe during the falling process, causing sewage to flow out and pollute the environment. Summary of the Invention

[0005] The present invention provides a hose on-off device and an operating machine, which are used to solve the defect in the prior art that the telescopic sewage pipe of a garbage bin cannot be accurately retracted, resulting in sewage leakage.

[0006] The present invention provides a hose on-off device, comprising:

[0007] An upper pressure assembly is provided on one side of the hose;

[0008] The down-pressing assembly is arranged on the other side of the hose; and the down-pressing assembly and the up-pressing assembly cut off the hose as the box is lifted, and connect the hose as the box is lowered.

[0009] According to a hose on-off device provided by the present invention, the pressing assembly includes:

[0010] a first elastic member, one end of which is disposed on the box body;

[0011] A first rotating shaft is provided on the box body;

[0012] The first pressing member is connected to the other end of the first elastic member; and the first pressing member rotates around the first rotating shaft as the box body is lifted or lowered, so as to cooperate with the upper pressing assembly to cut off or connect the hose.

[0013] According to a hose on-off device provided by the present invention, the first pressing member includes:

[0014] a clamping portion connected to the other end of the first elastic member;

[0015] A connecting portion, one end of which is connected to the clamping portion;

[0016] A pair of rotating parts is provided, wherein the bottom of the rotating part is connected to the connecting part, and the pair of rotating parts are hinged to the two ends of the first rotating shaft respectively;

[0017] The supporting portion is connected to the other end of the connecting portion; and the supporting portion moves along the length direction of the hose on the horizontal plane of the frame as the box body is lifted or lowered.

[0018] According to a hose on-off device provided by the present invention, the upper pressure assembly includes:

[0019] a pair of mounting plates, arranged oppositely on the box body;

[0020] a second rotating shaft, both ends of which are hinged to the mounting plate, and an extending direction of the second rotating shaft is the same as an extending direction of the hose;

[0021] The second pressing member is arranged between the pair of mounting plates, and the second pressing member is hinged to the second rotating shaft.

[0022] According to the present invention, a hose on-off device further includes a downpipe assembly, which is arranged at the water outlet end of the hose. The downpipe assembly is separated from the hose as the box is lifted, and is fitted with the hose as the box is lowered.

[0023] According to a hose on-off device provided by the present invention, the downpipe assembly comprises:

[0024] Downpipe, vertical and horizontal setting;

[0025] A combined sealing structure is provided on the top of the sewer pipe; the combined sealing structure is separated from the hose as the box body is lifted, and is attached to the hose as the box body is lowered;

[0026] An automatic leveling structure is connected to the sewer pipe, and the automatic leveling structure is used to provide assistance for the combined sealing structure to fit tightly with the hose.

[0027] According to a hose on-off device provided by the present invention, the automatic leveling structure includes:

[0028] A pair of support plates are disposed opposite to each other on the same side of the vehicle frame; and the extension direction of the support plates is the same as the extension direction of the hose;

[0029] A third rotating shaft is provided on the outside of the downpipe; and both ends of the third rotating shaft are hinged to the support plates respectively;

[0030] The second elastic member has one end connected to one end of the support plate close to the vehicle frame, and the other end connected to one side of the downpipe close to the vehicle frame.

[0031] According to a hose on-off device provided by the present invention, the automatic leveling structure further includes a rotating shaft pressure plate, the rotating shaft pressure plate is arranged on the support plate, and the rotating shaft pressure plate is provided with a slide groove, and the third rotating shaft is clamped in the slide groove.

[0032] According to the hose on-off device provided by the present invention, the first elastic members are a pair arranged in parallel.

[0033] The present invention also provides a working machine, comprising the hose on-off device as described above.

[0034] The hose on-off device provided by the present invention is equipped with an upper pressure component and a lower pressure component, and is respectively arranged on both sides of the hose. The lower pressure component and the upper pressure component cut off the hose as the box is lifted, and connect the hose as the box is lowered. The upper pressure component and the lower pressure component are reliable and durable, with high strength, and can meet the life cycle of the product, avoiding the use of the telescopic tube due to deterioration of elasticity after repeated use, resulting in sewage leakage.

[0035] The working machine provided by the present invention has the various advantages as described above because it includes the hose on-off device as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 This is a schematic diagram of the installation structure of the hose on-off device provided by the present invention. Figure 1 ;

[0038] Figure 2 This is a schematic diagram of the installation structure of the hose on-off device provided by the present invention. Figure 2 ;

[0039] Figure 3 The upper pressure component provided by the present invention is Figure 2 Schematic diagram of the structure in the A direction;

[0040] Figure 4This is an axonometric diagram of the hose on-off device provided by the present invention in an installed state;

[0041] Figure 5 The present invention provides Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0042] Figure 6 The present invention provides Figure 4 Schematic diagram of the enlarged structure at C in the middle;

[0043] Reference numerals:

[0044] 1. Box; 2. Upper pressure assembly; 3. Hose; 4. Lower pressure assembly; 5. Frame; 6. Sewer pipe assembly; 7. Rotating support; 8. Sewage pipe filter; 9. Sewage pipe bracket;

[0045] 21. Mounting plate; 22. Second rotating shaft; 23. Second pressing member;

[0046] 41. First elastic member; 42. First rotating shaft; 43. First pressing member; 431. Clamping portion; 432. Connecting portion; 433. Rotating portion; 434. Supporting portion;

[0047] 61. Drain pipe; 62. Combined sealing structure; 63. Automatic leveling structure; 631. Support plate; 632. Third rotating shaft; 633. Rotating shaft pressure plate. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0049] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0050] The following combination Figures 1 to 6 The hose on-off device of the present invention is described.

[0051] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a hose on-off device for realizing the shutoff or connection of a hose 3. The hose 3 refers to a pipe with a certain flexibility, which can be a latex tube, a silicone tube, or a hose 3 made of other materials, as long as it can be deformed under the action of pressure, thereby realizing the shutoff or connection of the hose 3. The hose on-off device is arranged on the box body 1, and a water outlet is arranged at the bottom of the box body 1, and the water outlet is connected to the hose 3. The hose on-off device includes an upper pressure component 2 and a lower pressure component 4. The upper pressure component 2 is arranged on one side of the hose 3 and can be set to the top side; the lower pressure component 4 is arranged on the other side of the hose 3, that is, the side opposite to the upper pressure component 2; and the lower pressure component 4 and the upper pressure component 2 shut off the hose 3 as the box body 1 is lifted, and connect the hose 3 as the box body 1 is lowered.

[0052] The hose on-off device provided by the present invention is provided with an upper pressure component 2 and a lower pressure component 4, which are respectively arranged on both sides of the hose 3. The lower pressure component 4 and the upper pressure component 2 cut off the hose 3 as the box body 1 is lifted, and connect the hose 3 as the box body 1 is lowered. The upper pressure component 2 and the lower pressure component 4 are reliable and durable, with high strength, and can meet the life cycle of the product, avoiding the use of the telescopic tube due to deterioration of elasticity after repeated use, resulting in sewage leakage.

[0053] In one embodiment of the present invention, Figure 2 As shown, the lower pressure component 4 includes a first elastic member 41, a first rotating shaft 42 and a first pressing member 43. One end of the first elastic member 41 is arranged on the box body 1, which is a fixed end; the first elastic member 41 can be set as a reset spring, and can also be set as other structures with elastic characteristics; the first rotating shaft 42 is set on the box body 1; the first pressing member 43 is connected to the other end of the first elastic member 41, that is, the first pressing member 43 is connected to the movable end of the first elastic member 41; and the first pressing member 43 rotates around the first rotating shaft 42 as the box body 1 is lifted or lowered, so that the first pressing member 43 and the upper pressure component 2 jointly cut off or connect the hose.

[0054] In one embodiment of the present invention, Figure 4 and Figure 5 As shown, the first pressing member 43 is configured as an integrally formed structure, including a clamping portion 431, a connecting portion 432, a rotating portion 433, and a supporting portion 434. The clamping portion 431 is connected to the other end of the first elastic member 41. The clamping portion 431 can be configured as a triangular structure, with a first side plate connected to the movable end of the first elastic member 41, a second side plate connected to the connecting portion 432, and two ends of the bottom plate respectively connected to the first and second side plates. The intersection of the first and second side plates is used to clamp the hose 3. The clamping portion 431 can be configured as a frame structure or a plate-like structure.

[0055] like Figure 5 As shown, the connecting portion 432 is configured as a plate-like structure, one end of which is connected to the junction of the bottom plate and the second side plate of the clamping portion 431. A pair of rotating portions 433 are provided, with the bottoms of the rotating portions 433 connected to both sides of the connecting portion 432. The pair of rotating portions 433 are respectively hinged to the ends of the first rotating shaft 42, so that when the box body 1 is lifted or lowered, the rotating portions 433 can rotate about the first rotating shaft 42 under the action of the rebound force of the first elastic member 41. The support portion 434 is connected to the other end of the connecting portion 432 and moves along the length direction of the hose 3 on the horizontal plane of the frame 5 as the box body 1 is lifted or lowered.

[0056] During the lifting process of the box body 1, the box body 1 rotates counterclockwise around the rotating support 7 and is lifted upward, and the upper pressure assembly 2 and the lower pressure assembly 4 separate from the frame 5 upward together, and the first pressure piece 43 separates from the frame 5. Under the action of the rebound force of the first elastic piece 41, the rotating part 433 rotates clockwise around the first rotating shaft 42. Since the clamping part 431 is integrally connected with the rotating part 433 through the connecting part 432, the clamping part 431 moves upward with the rotation of the rotating part 433, so that the clamping part 431 and the upper pressure assembly 2 begin to squeeze the hose 3 until the clamping part 431 contacts the upper pressure assembly 2, thereby realizing the cutting off of the hose 3.

[0057] In one embodiment of the present invention, Figure 3 As shown, the upper pressure assembly 2 includes a pair of mounting plates 21, a second rotating shaft 22, and a second pressing member 23. The pair of mounting plates 21 are relatively mounted on the housing 1, with the plane of the mounting plates 21 parallel to the radial direction of the hose 3. The second rotating shaft 22 is hingedly connected to the mounting plates 21 at both ends, and the extension direction of the second rotating shaft 22 is the same as the extension direction of the hose 3. The second pressing member 23 is disposed between the pair of mounting plates 21 and hingedly connected to the second rotating shaft 22. The second pressing member 23 can be square, providing a wider contact area with the clamping portion 431, making it easier to achieve compression of the hose 3 by the clamping portion 431 and the second pressing member 23. The second pressing member 23 can also be solid or hollow.

[0058] like Figure 4 As shown, during the lifting process of the box body 1, the clamping portion 431 moves upward and gradually approaches the second pressure piece 23. When one end of the clamping portion 431 contacts the second pressure piece 23 and the other end does not contact the second pressure piece 23, under the action of the first elastic member 41, the second pressure piece 23 can be deflected around the second rotating shaft 22, thereby achieving automatic leveling of the second pressure piece 23 and the clamping portion 431, thereby achieving uniform squeezing of the hose 3, and preventing sewage at the bottom of the box body 1 from overflowing during the lifting process of the box body 1.

[0059] In one embodiment of the present invention, Figure 1and Figure 6 As shown, it also includes a sewer pipe assembly 6, which is arranged at the water outlet end of the hose 3, and a sewage pipe filter 8 is provided at the water inlet end of the hose 3. The sewer pipe assembly 6 is separated from the hose 3 as the box body 1 is lifted, and the sewer pipe assembly 6 is fitted with the hose 3 as the box body 1 descends. When the box body 1 descends, the sewer pipe assembly 6 and the hose 3 are connected, so that the sewage in the box body 1 is introduced into the sewer pipe assembly 6, and the filtered sewage is sprayed to the ground for dust removal, thereby realizing the recycling of sewage.

[0060] In one embodiment of the present invention, specifically, the downpipe assembly 6 includes a downpipe 61, a combined sealing structure 62 and an automatic leveling structure 63. The downpipe 61 is usually arranged vertically to a horizontal plane; the combined sealing structure 62 is arranged at the top of the downpipe 61; and the combined sealing structure 62 is separated from the hose 3 as the box body 1 is lifted, and fits with the hose 3 as the box body 1 is lowered; the automatic leveling structure 63 is connected to the downpipe 61, and the automatic leveling structure 63 is used to provide assistance for the close fit between the combined sealing structure 62 and the hose 3.

[0061] In one embodiment of the present invention, the automatic leveling structure 63 includes a pair of support plates 631, a third rotating shaft 632 and a second elastic member, and the pair of support plates 631 are relatively arranged on the same side of the frame 5; and the extension direction of the support plates 631 is the same as the extension direction of the hose 3. The shape of the support plates 631 can be rectangular or square, which is not specifically limited here; the thickness of the support plates 631 can be set according to actual conditions; the third rotating shaft 632 is arranged on the outside of the sewer pipe 61; and the two ends of the third rotating shaft 632 are respectively hinged to the support plates 631. The specific form of the hinge can be that a U-shaped groove is opened on the support plate 631, and the third rotating shaft 632 is arranged in the U-shaped groove. On the one hand, the U-shaped groove provides support for the third rotating shaft 632, and on the other hand, it can provide space for the rotation of the sewer pipe 61. One end of the second elastic member is connected to the end of the support plate 631 close to the frame 5, and the other end is connected to the side of the downcomer 61 close to the frame 5. The second elastic member and the third rotating shaft 632 are set to push the downcomer 61 when the box body 1 descends, thereby realizing automatic leveling of the gap between the sealing structure 62 and the water outlet end of the hose 3, thereby improving the sealing performance.

[0062] In one embodiment of the present invention, the automatic leveling structure 63 also includes a rotating shaft pressure plate 633, which is arranged on the support plate 631, and the rotating shaft pressure plate 633 is provided with a sliding groove, and the third rotating shaft 632 is clamped in the sliding groove. The opening direction of the sliding groove is opposite to that of the U-shaped groove. The setting of the rotating shaft pressure plate 633 can prevent the third rotating shaft 632 from falling off.

[0063] In one embodiment of the present invention, Figure 2 and Figure 5As shown, the first elastic members 41 are a pair arranged in parallel, and the pair of first elastic members 41 are respectively connected to the two sides of the clamping portion 431 at one end close to the frame 5, which can provide greater elastic force, making the clamping portion 431 more sensitive to movement and avoiding failure of movement.

[0064] In addition, if Figure 2 As shown, in order to facilitate the connection and sealing between the water outlet end of the hose 3 and the combined sealing structure 62, a sewage pipe bracket 9 is also provided at the water outlet end of the hose 3. During use, the water outlet end of the hose 3 can be pre-fixed inside the sewage pipe bracket 9, and the sewage pipe bracket 9 can be a rigid pipe fitting.

[0065] In summary, the hose on-off device provided by the present invention, during the lifting process of the box body 1, when the box body 1 rotates counterclockwise around the rotating support 7 and is lifted upward, the upper pressure assembly 2 and the lower pressure assembly 4 are separated from the frame 5 upward together with the box body 1, and the sealing structure 62 and the sewage pipe bracket 9 are separated. Under the action of the first elastic member 41, the rotating part 433 of the first pressure member 43 rotates clockwise around the first rotating shaft 42, and the clamping part 431 of the first pressure member 43 and the second pressure member 23 begin to squeeze the hose 3. Under the action of the first elastic member 41, the second pressure member 23 is hinged to the second pressure member 23 through the second rotating shaft 22, and the second pressure member 23 automatically realizes extrusion sealing with the clamping part 431 to prevent sewage at the bottom of the box body 1 from overflowing during the lifting process of the box body 1.

[0066] During the process of the box body 1 descending and returning to its original position, the box body 1 rotates clockwise around the rotating support 7 and falls, and the upper pressure assembly 2 and the lower pressure assembly 4 fall together with the box body 1 and contact the frame 5, and start to contact the sealing structure 62 and the sewage pipe bracket 9. The rotation function of the sewer pipe 61 can be realized through the third rotating shaft 632, and the automatic leveling and sealing and automatic connection of the pipeline are realized in combination with the sealing structure 62 and the sewage pipe bracket 9; at the same time, the support part 434 of the first pressing piece 43 contacts the support plate of the frame 5, and after the contact force overcomes the spring force of the first elastic piece 41, the first pressing piece 43 rotates counterclockwise around the first rotating shaft 42, and the clamping part 431 of the first pressing piece 43 begins to disengage from the hose 3 and separates from the second pressing piece 23, so that the hose 3 is automatically connected, so that the sewage at the bottom of the box body 1 can flow smoothly to the ground for dust reduction.

[0067] It should be noted that the contact surface between the frame 5 and the pressing assembly 4 is a frame support surface of about several meters in length. Only part of the structure is shown in the figure, so there is no need to consider that the box body 1 will be stuck on the side of the frame 5 when it descends.

[0068] The working machine provided by the present invention is described below. The working machine described below and the hose on-off device described above can be referred to in correspondence with each other.

[0069] Another aspect of the present invention is to provide a working machine including the hose on-off device as described above.

[0070] In the embodiment provided by the present invention, the operating machine may be a sanitation road sweeper.

[0071] In the embodiment provided by the present invention, the working machine may also be other equipment, as long as it can use the hose on-off device as described above.

[0072] The operating machinery provided by the present invention takes a sanitation road sweeper as an example. The box 1 is used to store garbage and sewage, and a sewage outlet is provided at the bottom. Since it includes the hose on-off device as described above, during the process of lifting and unloading the box 1, the hose 3 serving as the sewage pipe is automatically disconnected, and is automatically connected after the box 1 is lowered, thereby meeting the use requirements; the mechanical rigid structure is reliable and durable, with high strength, which can meet the use requirements throughout the product life cycle, save downtime costs, and improve production efficiency.

[0073] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or modes and features of different embodiments or modes described in this specification without contradiction.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A hose on-off device, arranged on a box (1), characterized in that: include: An upper pressure assembly (2) is arranged on one side of the hose (3); A down-pressing assembly (4) is provided on the other side of the hose (3); and the down-pressing assembly (4) and the up-pressing assembly (2) cut off the hose (3) as the box (1) is lifted, and connect the hose (3) as the box (1) is lowered; It also includes a downpipe assembly (6) arranged at the water outlet end of the hose (3), wherein the downpipe assembly (6) is separated from the hose (3) as the box (1) is lifted, and the downpipe assembly (6) is attached to the hose (3) as the box (1) is lowered; wherein the downpipe assembly (6) includes: Downpipe (61), vertically arranged on a horizontal plane; A combined sealing structure (62) is provided on the top of the sewer pipe (61); and the combined sealing structure (62) is separated from the hose (3) as the box body (1) is lifted, and is attached to the hose (3) as the box body (1) is lowered; An automatic leveling structure (63) is connected to the sewer pipe (61), and the automatic leveling structure (63) is used to provide assistance for the close fit between the combined sealing structure (62) and the hose (3); the automatic leveling structure (63) includes: A pair of support plates (631) are arranged on the same side of the vehicle frame (5); the extension direction of the support plates (631) is the same as the extension direction of the hose (3); and a U-shaped groove is provided on the support plates (631); The third rotating shaft (632) is arranged outside the downpipe (61); and both ends of the third rotating shaft (632) are respectively hinged to the support plate (631); the third rotating shaft (632) is arranged in the U-shaped groove; A second elastic member, one end of which is connected to an end of the support plate (631) close to the vehicle frame (5), and the other end of which is connected to a side of the downpipe (61) close to the vehicle frame (5); Wherein, the pressing component (4) comprises: A first elastic member (41), one end of which is disposed on the box body (1); A first rotating shaft (42) is provided on the box body (1); The first pressing member (43) is connected to the other end of the first elastic member (41); and the first pressing member (43) rotates around the first rotating shaft (42) as the box body (1) is lifted or lowered, so that the first pressing member (43) and the upper pressing assembly (2) can cooperate to cut off or connect the hose.

2. The hose on-off device according to claim 1, characterized in that: The first pressing member (43) comprises: A clamping portion (431) connected to the other end of the first elastic member (41); A connecting portion (432), one end of which is connected to the clamping portion (431); A pair of rotating parts (433) are provided, the bottoms of the rotating parts (433) are connected to the connecting part (432), and the pair of rotating parts (433) are hinged to the two ends of the first rotating shaft (42) respectively; The support portion (434) is connected to the other end of the connection portion (432); and the support portion (434) moves along the length direction of the hose (3) on the horizontal plane of the vehicle frame (5) as the box body (1) is lifted or lowered.

3. The hose on-off device according to claim 1, characterized in that: The upper pressure component (2) comprises: A pair of mounting plates (21) are arranged opposite to each other on the box body (1); A second rotating shaft (22), both ends of which are hinged to the mounting plate (21), and the extending direction of the second rotating shaft (22) is the same as the extending direction of the hose (3); The second pressing member (23) is arranged between the pair of mounting plates (21), and the second pressing member (23) is hinged to the second rotating shaft (22).

4. The hose on-off device according to claim 1, characterized in that: The automatic leveling structure (63) further comprises a rotating shaft pressing plate (633), wherein the rotating shaft pressing plate (633) is arranged on the supporting plate (631), and the rotating shaft pressing plate (633) is provided with a sliding groove, and the third rotating shaft (632) is clamped in the sliding groove.

5. The hose on-off device according to claim 1, characterized in that: The first elastic members (41) are a pair arranged in parallel.

6. A working machine, characterized in that: The invention comprises the hose on-off device according to any one of claims 1 to 5.

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