Mobile pump station and clutch structure of engine of mobile pump station

Abstract

The utility model discloses a mobile pump station and engine clutch structure, wherein the clutch structure comprises a mechanical clutch, an engine and a swing device, the mechanical clutch is provided with a first connecting end, a second connecting end and a disengagement shaft capable of rotating, the disengagement shaft extends to the outer side of the mechanical clutch, and the first connecting end is connected with the second connecting end. When the separating shaft rotates to a first position, the first connecting end and the second connecting end are connected, when the separating shaft rotates to a second position, the first connecting end and the second connecting end are disconnected, the output end of the engine is connected with the first connecting end of the mechanical clutch, and the output end of the engine is connected with the second connecting end of the mechanical clutch. The swing device is arranged on the support, connected with the separation shaft and used for enabling the separation shaft to rotate to the first position or the second position. The swing device is introduced, automation of clutch operation is achieved, the connection or disconnection action can be completed in a shorter time, the device adapts to the rapidly-changing working environment, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mobile pump station especially relates to a mobile pump station and clutch structure of engine thereof. BACKGROUND

[0002] In today's society, drainage equipment shoulders heavy responsibilities in agricultural and urban irrigation and drainage, flood control and drainage tasks. Many low, narrow and special areas, such as narrow streets, underground passages, underground garages and subway stations, due to space constraints, large drainage equipment cannot enter and operate smoothly. Not only that, some complex road sections also hinder the passage of drainage equipment. Based on these problems, small mobile pump stations have emerged, which can shuttle in complex terrain and play a key role in drainage and rescue at critical moments.

[0003] The patent of the inventor's previous application (application number 202311087802.6) discloses a mobile pump station with compact structure, which includes a chassis with a hydraulic walking mechanism, a power mechanism, a pump mechanism and a hydraulic system. The power mechanism, pump mechanism and hydraulic system are arranged on the chassis with the hydraulic walking mechanism. The power mechanism provides power for the hydraulic oil pump of the pump mechanism and the hydraulic system, so that the chassis and the power mechanism, pump mechanism and hydraulic system on the chassis move under the drive of the hydraulic walking mechanism. The hydraulic system includes a hydraulic control unit, which controls the direction and speed of the track of the chassis through remote control. The power mechanism and the pump mechanism are connected to drive the water pump. Among them, there is a clutch between the power mechanism and the pump mechanism, which controls the engagement or disengagement of the power mechanism and the pump mechanism through the clutch. This clutch uses a mechanical clutch, which has a separation shaft for switching clutch. By rotating the separation shaft manually by the operator, the engagement or disengagement of the clutch is realized.

[0004] With the development of technology and the increasing demand for equipment operation convenience and intelligent degree, this method of relying on manual operation to switch the clutch state gradually exposes obvious shortcomings. In some specific application scenarios, such as inconvenient location or frequent switching of clutch state, manual operation becomes inconvenient and inefficient. UTILITY MODEL CONTENTS

[0005] Therefore, it is necessary to provide a mobile pump station and clutch structure of engine thereof to solve the problems raised in the background art.

[0006] To achieve the above object, the embodiment provides a clutch structure of an engine, which comprises a mechanical clutch, an engine and a swing device, the mechanical clutch has a first connecting end, a second connecting end and a self-rotating separation shaft, the separation shaft extends to the outside of the mechanical clutch, when the separation shaft rotates to a first position, the first connecting end and the second connecting end are engaged, when the separation shaft rotates to a second position, the first connecting end and the second connecting end are disconnected, the output end of the engine is connected with the first connecting end of the mechanical clutch, and the swing device is arranged on a support and connected with the separation shaft and used for rotating the separation shaft to the first position or the second position.

[0007] Further, the swing device comprises a handle and a telescopic rod, the handle is sleeved on the separation shaft, one end of the handle away from the separation shaft is rotatably connected with the telescopic rod, and one end of the telescopic rod away from the handle is arranged on the support.

[0008] Further, the separation shaft has an outer gear ring, and the handle has an inner gear ring matched with the outer gear ring.

[0009] Further, the swing device further comprises a first locking member, the handle has a notch extending to the inner gear ring, the notch divides the handle into left and right parts, the left and right parts are locked by the first locking member to tightly sleeve the inner gear ring on the outer gear ring, and the first locking member is located outside the inner gear ring.

[0010] Further, the rotatable connection between the handle and the telescopic rod is realized by a pin shaft, and the pin shaft is externally provided with a sliding groove for sliding of the pin shaft, the sliding groove extends along the telescopic direction of the telescopic rod, and the pin shaft slides in the sliding groove along with the telescopic rod.

[0011] Further, the swing device further comprises a connecting head, the connecting head is detachably connected with the telescopic rod, the pin shaft passes through the handle and the connecting head, the connecting head is provided with the sliding groove, one end of the handle away from the separation shaft is provided with a through hole for passing of the pin shaft, and the through hole is tightly sleeved with the pin shaft.

[0012] Further, the connecting head is a U-shaped fork head, opposite two side walls of the U-shaped fork head are respectively provided with the sliding groove, and the U-shaped fork head is provided with a space for placing one end of the handle away from the separation shaft, the swing device further comprises a second locking member, and the pin shaft is locked with the U-shaped fork head by the second locking member.

[0013] Further, the head of the pin shaft has a size greater than the width of the sliding groove, the tail of the pin shaft has a threaded hole, the second locking member comprises a washer and a second screw, the head of the pin shaft and the second screw are located on both sides of the U-shaped fork head, the second screw is threadedly connected with the threaded hole, and the second screw is locked with the pin shaft and the U-shaped fork head in cooperation with the washer and the head.

[0014] Further, a controller is further included, which is connected with the telescopic rod and used for controlling extension or shortening of the telescopic rod.

[0015] The controller controls the telescopic rod to act, so that the separation shaft rotates to a first position in a first direction, and then controls the telescopic rod to reverse action, so that the separation shaft retreats in a second direction, and the retreat length is less than the length of the sliding groove.

[0016] The controller controls the telescopic rod to act, so that the separation shaft rotates to a second position in a second direction, and then controls the telescopic rod to reverse action, so that the separation shaft retreats in a first direction, and the retreat length is less than the length of the sliding groove.

[0017] Further, a position sensor for detecting the telescopic length of the telescopic rod is further included, and the position sensor is electrically connected with the controller.

[0018] Further, the position sensor is a magnetic switch and has two, the two magnetic switches are sequentially installed on the shell of the telescopic rod and correspond to the engagement position and disengagement position of the clutch, the magnetic sensitive element in the magnetic switch is a Hall element or a reed switch, and the telescopic rod is an electric push rod, and a magnet matched with the magnetic switch is arranged in the push rod.

[0019] To achieve the above object, the embodiment further provides a mobile pump station, which comprises a chassis, a water pump and a clutch structure of an engine, the clutch structure of the engine is the clutch structure of the engine according to any one of the above-mentioned embodiments, the engine is arranged on the chassis, and the water pump is arranged on the chassis and connected with the second connection end of the mechanical clutch.

[0020] Further, the bracket comprises a body and two ear plates arranged side by side on the body, the two ear plates have a space for the end of the telescopic rod away from the handle to extend into, the two ear plates are hingedly connected with the end of the telescopic rod away from the handle, the middle part of the body is fastened with the side of the engine through bolts, and the bottom of the body is fastened with the chassis through bolts.

[0021] Different from the prior art, the above technical solution has the following beneficial effects:

[0022] Compared with the traditional mode of relying on the manual rotation of the separation shaft by the operator, the swing device is introduced, the automation of the clutch operation is realized, the engaging or disengaging action can be completed in a shorter time, the quick changing working environment is adapted, and the working efficiency is improved.

[0023] The above content related to the description of the utility model is only a summary of the technical scheme of the application, in order to enable those skilled in the art to more clearly understand the technical scheme of the application, and then can be implemented according to the content recorded in the description and drawings, and in order to make the above purpose and other purposes, characteristics and advantages of the application can be more easily understood, the following is described in combination with the specific embodiment and drawings of the application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings are only used to show the principles, implementation modes, applications, characteristics and effects of the specific embodiments and other related contents of the utility model, and cannot be considered as the limitation of the application.

[0025] Figure 1 It is a perspective view of the clutch structure of the engine in the embodiment;

[0026] Figure 2 It is a schematic view of the extension rod retraction, the handle pulling, the separation shaft rotating to the first position in the embodiment;

[0027] Figure 3 It is a schematic view of the extension rod extension, the handle pushing, the separation shaft rotating to the second position in the embodiment;

[0028] Figure 4 It is a schematic view of the extension rod reverse action, the pin shaft back in the embodiment;

[0029] Figure 5 It is Figure 1 The enlarged schematic view of the A part in the embodiment;

[0030] Figure 6 It is a side view of the handle and the separation shaft in the embodiment;

[0031] Figure 7 It is a perspective view of the connecting head in the embodiment;

[0032] Figure 8 It is a perspective view of the extension rod and the magnetic switch in the embodiment;

[0033] Figure 9 It is a perspective view of the second locking member in the embodiment;

[0034] Figure 10 It is a perspective view of the mobile pump station in the embodiment.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 1. Mechanical clutch; 11. Separation shaft; 111. Outer gear ring; 12. Second connection end;

[0037] 2. Engine;

[0038] 3. Swing device;

[0039] 31. Handle; 311. Notch; 312. Inner gear ring;

[0040] 32. Telescopic rod;

[0041] 33. Connector; 331. U-shaped fork head; 3311. Side wall; 3312. Space;

[0042] 34. Pin shaft;

[0043] 35. First locking member;

[0044] 36. Slide groove;

[0045] 37. Second locking member; 371. Second screw rod;

[0046] 38. Magnetic switch;

[0047] 39. Connection screw rod;

[0048] 4. Support;

[0049] 41. Body; 42. Ear plate;

[0050] 5. Water pump. DETAILED DESCRIPTION

[0051] To explain the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following will be described in detail in combination with the specific embodiments listed and the accompanying drawings. The embodiments described in this paper are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0052] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit its independence or association with other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0053] Unless otherwise defined, the meanings of technical terms used in the present application are the same as those commonly understood by one of ordinary skill in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments of the present application and is not intended to limit the present application.

[0054] In the description of the present application, the phrase "and / or" is a description of the logical relationship between objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " herein generally represents that the associated objects before and after are a "or" logical relationship.

[0055] In the present application, the phrases such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary, or order relationship between the entities or operations.

[0056] In the present application, without more limitation, the "includes", "contains", "has" or other similar open expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include the elements inherent to such process, method or product.

[0057] As the same as the understanding in the "Guidelines for Examination", in the present application, the expressions such as "greater than", "less than", "exceed" are understood as not including the number; the expressions such as "above", "below", "within" are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly limited.

[0058] In the description of the embodiments of the present application, the spatial-related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or the drawings, and are only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and are not intended to indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0059] Unless otherwise clearly indicated or implied to the contrary by context, the terms "mount", "connected", "connecting", "fixed", "set", etc., used in the description of the embodiments herein are to be construed broadly and are not limited to the sections or means described. For example, "connected" can be fixed connection, detachable connection, or integral setting; it can be direct connection, or indirect connection through an intermediate medium; it can be the relationship of two components combined together, or the relationship of interaction between two components, or the internal communication of two structures. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present application according to the specific circumstances.

[0060] Please refer to Figures 1 to 10 The embodiment provides a clutch structure of an engine, comprising a mechanical clutch 1, an engine 2 and an oscillating device 3. The mechanical clutch 1 has a first connecting end, a second connecting end 12 and a self-rotating separation shaft 11. The separation shaft 11 extends to the outside of the mechanical clutch 1. When the separation shaft 11 rotates to a first position, the first connecting end and the second connecting end 12 are engaged. When the separation shaft 11 rotates to a second position, the first connecting end and the second connecting end 12 are disconnected. The output end of the engine 2 is connected to the first connecting end of the mechanical clutch 1. The oscillating device 3 is arranged on a bracket 4 and connected to the separation shaft 11, and is used for rotating the separation shaft 11 to the first position or the second position.

[0061] The first connecting end and the second connecting end 12 are two interfaces of the clutch. The first connecting end can be connected to the engine 2, and the second connecting end 12 can be connected to a driven load (such as a water pump 5). When the clutch is in the engaged state, the power of the engine 2 is transmitted to the inside of the clutch through this connecting end, and finally transmitted to the second connecting end 12, so as to drive the load to work.

[0062] The separation shaft 11 is a key component inside the clutch. It can rotate by itself, and one end extends to the outside of the clutch shell, so as to be operated from the outside. Specifically, some structures (such as cams, forks, etc.) connected to the separation shaft 11 can affect the position of the friction plate or the meshing gear inside the clutch at different positions, thereby controlling the power connection between the first connecting end and the second connecting end 12. When the separation shaft 11 rotates to the first position, it promotes the mutual compression of the contact surfaces inside the clutch, so that the first connecting end and the second connecting end 12 form a close mechanical connection, so that the power of the engine 2 can be smoothly transmitted to the load. Conversely, when the separation shaft 11 rotates to the second position, it will cause the contact surfaces to separate or loosen, resulting in the loss of physical connection between the first connecting end and the second connecting end 12, thereby interrupting the power transmission path from the engine 2 to the load.

[0063] The swing device 3 is fixed on a support 4 and connected with the separation shaft 11 through a mechanical connecting rod or other forms of transmission. The swing device 3 can be driven by an electric motor, pushed by a hydraulic cylinder or other power sources to realize the rotary motion.

[0064] The above technical solution has the following beneficial effects:

[0065] Compared with the traditional way of manually rotating the separation shaft 11 by the operator, the application introduces the swing device 3 to realize the automation of the clutch operation, which can complete the engagement or disengagement action in a shorter time, adapt to the rapidly changing working environment and improve the work efficiency.

[0066] Please refer to Figures 1 to 4 In this embodiment, the swing device 3 includes a handle 31 and a telescopic rod 32, the handle 31 is sleeved on the separation shaft 11, the end of the handle 31 away from the separation shaft 11 is rotatably connected with the telescopic rod 32, and the end of the telescopic rod 32 away from the handle 31 is arranged on the support 4.

[0067] When it is needed to change the state of the clutch (i.e. from engagement to disengagement, or vice versa), the controller will issue a command to the telescopic rod 32 to extend or retract. The action of the telescopic rod 32 is transmitted to the handle 31 through the rotatable connection between them, thereby driving the separation shaft 11 to rotate.

[0068] Please refer to Figure 2 As an embodiment, if the clutch is engaged, the telescopic rod 32 is retracted, pulling the handle 31, so that the separation shaft 11 is rotated to the first position, thereby making the first connecting end and the second connecting end 12 of the clutch mesh with each other to establish the power transmission path; please refer to Figure 3 If the clutch is to be disengaged, the telescopic rod 32 is extended, pushing the handle 31, so that the separation shaft 11 is rotated to the second position, at which time the two connecting ends of the clutch are separated, cutting off the power transmission path.

[0069] Please refer to Figure 5 and Figure 6 In this embodiment, the separation shaft 11 has an outer ring gear 111, and the handle 31 has an inner ring gear 312 adapted to the outer ring gear 111. Aligning the inner ring gear 312 and the outer ring gear 111, the handle 31 is sleeved on the separation shaft in the axial direction of the separation shaft 11, the inner ring gear 312 and the outer ring gear 111 are engaged, and the separation shaft 11 is rotated following the rotation of the handle.

[0070] Please refer to Figure 5In this embodiment, the clutching structure further comprises a first locking member 35, the handle 31 is provided with a gap 311 extending to the inner ring gear 312, the gap 311 divides the handle 31 into two parts, the two parts are locked by the first locking member 35 to tightly fit the inner ring gear 312 on the outer ring gear 111, and the first locking member 35 is located outside the inner ring gear 312. Figure 5 As shown, the handle 31 is provided with a gap 311 extending along the length direction of the handle 31, the gap 311 extends to the inner ring gear 312, and the two parts of the handle 31 are tightly pressed by the radial pressure of the first locking member 35, so as to make the outer ring gear 111 on the separation shaft 11 shrink and tightly connect with the outer ring gear 111 on the separation shaft 11. In this way, the tight fit between the inner ring gear 312 and the outer ring gear 111 greatly reduces the relative sliding between the contact surfaces.

[0071] Please refer to Figure 5 In this embodiment, the first locking member 35 comprises a first bolt, the two parts of the handle 31 divided by the gap 311 are provided with screw holes matched with the first bolt, and the first bolt is screwed into the screw holes of the two parts to tightly fix the two parts, so as to ensure the firm engagement between the outer ring gear 111 on the separation shaft 11 and the inner ring gear 312 in the handle 31 and ensure the accurate transmission of the rotary motion.

[0072] The inventor finds that if the connecting force between the telescopic rod 32 and the handle 31 is always maintained after the mechanical clutch 1 is switched, the continuous force may cause additional mechanical stress on the internal components of the clutch. After a long time of accumulation, these stresses may affect the performance and service life of the clutch.

[0073] Please refer to Figures 2 to 4 In this embodiment, the handle 31 and the telescopic rod 32 are rotatably connected through the pin shaft 34, and the pin shaft 34 is provided with a sliding groove 36 outside for the pin shaft 34 to slide, the sliding groove 36 extends along the extension direction of the telescopic rod 32, and the pin shaft 34 slides in the sliding groove 36 along with the extension and retraction of the telescopic rod 32.

[0074] In this way, after the switching operation of the mechanical clutch 1 is completed, the telescopic rod 32 reverses the action to drive the pin shaft 34 to retreat from one end of the sliding groove 36, but does not completely push to the other end. At this time, the pin shaft 34 is still retained in the sliding groove 36, ensuring that the connecting force between the handle 31 and the telescopic rod 32 is released, and the separation shaft 11 maintains its current position without additional rotation, so that the clutching state is stably maintained and is not affected by the retraction action of the telescopic rod 32. In this way, the connecting force is eliminated, the overload phenomenon caused by improper operation or accidental situation is prevented, and the risk of smoke or other forms of damage inside the clutch is greatly reduced.

[0075] Please refer to Figures 2 to 4 ,Figure 7 In the embodiment, the swing device 3 further comprises a connecting head 33, which is detachably connected with the telescopic rod 32, and the pin shaft 34 passes through the handle 31 and the connecting head 33. The connecting head 33 is provided with a sliding groove 36, and the handle 31 is provided with a through hole through which the pin shaft 34 passes, which is matched with the pin shaft 34 and tightly sleeved to prevent the pin shaft 34 from idling as much as possible. The introduction of the connecting head 33 forms an indirect connection between the telescopic rod 32 and the handle 31, so that telescopic rods 32 of different specifications or types can be matched with the same model of connecting head 33, and the two can be fixed by bolts.

[0076] In some embodiments, the sliding groove 36 can be arranged on the handle 31 because the sliding groove 36 and the pin shaft 34 are opposite. When the connecting head 33 is not arranged, the sliding groove 36 can be arranged on the telescopic rod 32, and the pin shaft 34 is arranged on the handle 31 and passes through the sliding groove 36. Alternatively, the sliding groove 36 can be arranged on the handle 31, and the pin shaft 34 is arranged on the telescopic rod 32 and passes through the sliding groove 36.

[0077] Please refer to Figures 2 to 4 、 Figure 7 In the embodiment, the connecting head 33 is a U-shaped fork head 331, and the opposite two side walls 3311 of the U-shaped fork head 331 are respectively provided with the sliding grooves 36. The U-shaped fork head 331 has a space 3312 between the opposite two side walls 3311 for accommodating the end of the handle 31 away from the separation shaft 11. The swing device 3 further comprises a second locking member 37, and the pin shaft 34 is locked with the U-shaped fork head 331 through the second locking member 37. The locking member can be a nut, a snap ring or other forms of locking structure to prevent the pin shaft 34 from loosening or slipping during work. During installation, the handle 31 is first placed in the space 3312 of the U-shaped fork head 331, then the pin shaft 34 passes through the through hole on the handle 31 and the sliding grooves 36 on the two side walls 3311 of the U-shaped fork head 331, and finally the pin shaft 34 is fastened by using the second locking member 37 to ensure the stability and reliability of the entire assembly.

[0078] Please refer to Figure 9 In the embodiment, the telescopic rod 32 can be connected with the connecting head 33 through a connecting screw 39. One end of the connecting screw 39 is threadedly connected with the telescopic rod 32, the other end is threadedly connected with the connecting head 33, and a nut can be used to lock them.

[0079] Please refer to Figure 9In the embodiment, the head of the pin shaft 34 is larger than the width of the sliding groove 36, the tail of the pin shaft 34 has a screw hole, the second locking member 37 includes a gasket and a second screw 371, the head of the pin shaft 34 and the second screw 371 are located on both sides of the U-shaped fork head 331, the second screw 371 is screwed with the screw hole, and the gasket and the head of the pin shaft 34 lock the pin shaft 34 and the U-shaped fork head 331. Wherein, the gasket and the second screw 371 are located on one side of the U-shaped fork head 331, and the head of the pin shaft 34 is located on the other side of the U-shaped fork head 331, which is limited from the U-shaped fork head 331 to prevent the pin shaft 34 from sliding off.

[0080] In the embodiment, the clutch structure further includes a controller connected with the telescopic rod 32 for controlling the extension or contraction of the telescopic rod 32; the controller controls the telescopic action of the telescopic rod 32 so that when the separating shaft 11 rotates to the first position along the first direction, the telescopic rod 32 is controlled to reverse action so that the separating shaft 11 retreats along the second direction, and the retreat length is less than the length of the sliding groove 36; the controller controls the telescopic action of the telescopic rod 32 so that when the separating shaft 11 rotates to the second position along the second direction, the telescopic rod 32 is controlled to reverse action so that the separating shaft 11 retreats along the first direction, and the retreat length is less than the length of the sliding groove 36.

[0081] The telescopic action corresponds to the extension or contraction, as an embodiment, the controller controls the telescopic rod 32 to contract, pulls the handle 31, and makes the separating shaft 11 rotate to the first position, so that the first connecting end and the second connecting end 12 of the clutch are engaged with each other, at this time, in order to eliminate the connecting force, the controller controls the telescopic rod 32 to extend for a distance, so that the pin shaft 34 retreats from the end of the sliding groove 36 to the middle; on the contrary, the controller controls the telescopic rod 32 to extend, pulls the handle 31, and makes the separating shaft 11 rotate to the second position, so that the first connecting end and the second connecting end 12 of the clutch are disconnected, at this time, in order to eliminate the connecting force, the controller controls the telescopic rod 32 to contract for a distance, so that the pin shaft 34 retreats from the end of the sliding groove 36 to the middle. The retreat of the pin shaft 34 to the middle position of the sliding groove 36 can be referred to the figure. Figure 4

[0082] Please refer to Figure 4 In the embodiment, the length of the sliding groove 36 is 15 mm, the retreat distance of the telescopic rod 32 is 5-10 mm, Figure 4 The figure shows that the telescopic rod controls the pin shaft to retreat to the middle position of the sliding groove 36. By controlling the retreat distance, it is ensured that the pin shaft 34 can retreat properly after completing the position switching of the separating shaft 11, but will not touch the end of the sliding groove 36, effectively preventing the misoperation caused by the too long retreat distance, and avoiding the accidental disconnection of the clutch state.

[0083] Please refer to Figure 8 ​In the embodiment, the clutch structure further comprises a position sensor for detecting the extension length of the telescopic rod 32, and the position sensor is electrically connected to the controller. Preferably, the position sensor is a magnetic switch 38, which can monitor the extension length of the telescopic rod 32 in real time and send the detected position information to the controller. This real-time feedback mechanism enables the controller to accurately grasp the current position of the telescopic rod 32, thereby improving the accuracy and reliability of the operation.

[0084] Referring to Figure 8 In the embodiment, the magnetic switch 38 is installed on the shell of the telescopic rod 32, and the magnetic sensitive element inside the magnetic switch 38 is a Hall element or a reed switch. The telescopic rod 32 is an electric push rod, and the push rod inside the electric push rod is provided with a magnet matched with the magnetic switch 38. When the push rod inside the electric push rod moves, the magnet on the push rod also moves. When the magnet approaches the magnetic switch 38, the Hall element or the reed switch detects the change of the magnetic field and triggers the corresponding switch signal.

[0085] Referring to Figure 8 In the embodiment, two magnetic switches 38 are installed on the shell of the electric push rod, and the two magnetic switches 38 are respectively located at two key positions on the extension path of the electric push rod, corresponding to the engagement position and disengagement position of the clutch.

[0086] Referring to Figure 1 The ITU4, in the embodiment, the model of the mechanical clutch 1 is P11-13AC-502.

[0087] Referring to Figures 1 to 10 The embodiment also provides a mobile pump station comprising a chassis, a water pump 5 and a clutch structure of an engine 2. The clutch structure of the engine 2 is any of the clutch structures of the engine 2 described in the above embodiments. The engine 2 is arranged on the chassis, and the water pump 5 is arranged on the chassis and connected to the second connection end 12 of the mechanical clutch 1. When it is necessary to start the water pump 5, the controller drives the telescopic rod 32 to extend or retract, switches the mechanical clutch 1 to the engaged state, and then transmits the power of the engine 2 to the water pump 5. After the task is completed, the controller again operates the telescopic rod 32 to disconnect the connection between the engine 2 and the water pump 5.

[0088] Referring to Figures 1 to 4 , Figure 10In the embodiment, the bracket 4 comprises a body 41 and two parallelly arranged ear plates 42 on the body 41, the two ear plates 42 have a space for the end of the telescopic rod 32 away from the handle 31 to extend into, the two ear plates 42 are hinged with the end of the telescopic rod 32 away from the handle 31, the middle part of the body 41 is fastened with the side of the engine 2 by bolts, and the bottom of the body 41 is fastened with the chassis by bolts. The ear plates 42 can be welded with the body 41, and the body 41 is provided with holes corresponding to the bolts, so that the bracket 4 can be manufactured. The engine 2 and the telescopic rod 32 are fixed by one bracket 4, the space is saved, the layout of the whole mobile pump station is more compact and reasonable, and the space utilization of the equipment is improved.

[0089] Finally, it should be noted that, although the above embodiments have been described in the specification and drawings of the present application, the patent protection scope of the present application should not be limited. Any technical solution obtained by replacing or modifying the equivalent structure or equivalent process based on the essential concept of the present application, using the content described in the specification and drawings of the present application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A clutch structure for an engine, characterized in that, The device includes a mechanical clutch, an engine, and a oscillating device. The mechanical clutch has a first connecting end, a second connecting end, and a rotatable release shaft. The release shaft extends to the outside of the mechanical clutch. When the release shaft rotates to a first position, the first connecting end and the second connecting end engage. When the release shaft rotates to a second position, the first connecting end and the second connecting end disengage. The output end of the engine is connected to the first connecting end of the mechanical clutch. The oscillating device is mounted on a bracket and connected to the release shaft, and is used to rotate the release shaft to the first position or the second position.

2. The clutch structure according to claim 1, characterized in that, The swinging device includes a rocker arm and a telescopic rod. The rocker arm is sleeved on the separation shaft. One end of the rocker arm away from the separation shaft is rotatably connected to the telescopic rod. One end of the telescopic rod away from the rocker arm is mounted on a bracket.

3. The clutch structure according to claim 2, characterized in that, The separating shaft has an external gear ring, and the rocker arm has an internal gear ring that mates with the external gear ring.

4. The clutch structure according to claim 3, characterized in that, The swinging device further includes a first locking member. The crank handle has a notch that extends to the inner gear ring. The notch divides the crank handle into left and right parts, which are locked together by the first locking member to secure the inner gear ring onto the outer gear ring. The first locking member is located outside the inner gear ring.

5. The clutch structure according to any one of claims 2-4, characterized in that, The crank handle and the telescopic rod are rotatably connected by a pin, and the pin is provided with a sliding groove for sliding. The sliding groove extends along the extension and retraction direction of the telescopic rod, and the pin slides in the sliding groove as the telescopic rod extends and retracts.

6. The clutch structure according to claim 5, characterized in that, The swing device further includes a connector that is detachably connected to the telescopic rod. The pin passes through the crank handle and the connector. The connector has the groove. The crank handle has a through hole at one end away from the separating shaft for the pin to pass through. The through hole is tightly fitted with the pin.

7. The clutch structure according to claim 6, characterized in that, The connector is a U-shaped fork head, and the opposite side walls of the U-shaped fork head are respectively provided with sliding grooves. There is a space between the opposite side walls of the U-shaped fork head for inserting one end of the crank arm away from the separation shaft. The swing device also includes a second locking member, and the pin is locked to the U-shaped fork head by the second locking member.

8. The clutch structure according to claim 7, characterized in that, The head of the pin is larger than the width of the groove, and the tail of the pin has a screw hole. The second locking member includes a washer and a second screw. The head of the pin and the second screw are located on both sides of the U-shaped fork. The second screw is threaded to the screw hole and, together with the washer and the head, locks the pin and the U-shaped fork.

9. The clutch structure according to any one of claims 5-8, characterized in that, It also includes a controller, which is connected to the telescopic rod and is used to control the extension or retraction of the telescopic rod; The controller controls the telescopic rod to rotate the separation shaft to a first position in the first direction, and then controls the telescopic rod to move in the opposite direction to retract the separation shaft in the second direction, wherein the retraction length is less than the length of the slide groove. The controller controls the telescopic rod to rotate the separation shaft to the second position in the second direction, and then controls the telescopic rod to move in the opposite direction, so that the separation shaft retracts in the first direction, wherein the retraction length is less than the length of the slide groove.

10. The clutch structure according to claim 9, characterized in that, It also includes a position sensor for detecting the extension length of the telescopic pole, the position sensor being electrically connected to the controller.

11. The clutch structure according to claim 10, characterized in that, The position sensor is a magnetic switch, and there are two magnetic switches. The two magnetic switches are installed sequentially on the housing of the telescopic rod, corresponding to the engagement and disengagement positions of the clutch. The magnetic sensitive element inside the magnetic switch is a Hall element or a reed switch. The telescopic rod is an electric push rod, and the push rod inside it is equipped with a magnet that cooperates with the magnetic switch.

12. A mobile pumping station, characterized in that, The clutch structure includes a chassis, a water pump, and an engine. The clutch structure of the engine is the clutch structure of any one of claims 1-11. The engine is mounted on the chassis, and the water pump is mounted on the chassis and connected to the second connection end of the mechanical clutch.

13. The mobile pumping station according to claim 12, characterized in that, The bracket includes a body and two ear plates arranged side by side on the body. There is a space between the two ear plates for the end of the telescopic rod away from the crank handle to extend into. The two ear plates are hinged to the end of the telescopic rod away from the crank handle. The middle part of the body is fastened to the side of the engine by bolts, and the bottom of the body is fastened to the chassis by bolts.

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