Pipeline flushing machine water pump and accelerator control structure and pipeline flushing machine

Abstract

The utility model belongs to the technical field of pipeline flushing equipment, and particularly provides a water pump and accelerator control structure of a pipeline flushing machine and the pipeline flushing machine. The pipeline flushing machine comprises a water outlet pipe and a pressure accelerator switch, the pressure accelerator switch comprises a shell, a piston rod and a spring, a pressure sensing hole is formed in the end, communicated with the water outlet pipe, of the shell, and when a water way is switched to a high-pressure state, water pressure can act on the piston rod through the pressure sensing hole; and the piston rod is pushed to extend outwards to drive an engine accelerator cable to perform automatic accelerator. When the water way is switched to the water return state, the water pressure is small, the piston rod moves towards the interior of the sliding cavity under the pretightening force effect of the spring, the accelerator cable is released, and the operation of automatically loosening the accelerator is achieved. By means of the arrangement, linkage control over the high-pressure / water return state of the water pump and the engine throttle can be achieved, the steps of manual throttle adding and throttle releasing are omitted, and use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline flushing equipment technical field, concretely relates to a pipeline flushing machine water pump and throttle control structure and pipeline flushing machine. BACKGROUND

[0002] Pipeline flushing machine is a kind of pipeline cleaning equipment, mainly by engine, water pump, water tank, water pipe and flushing spray head, engine uses gasoline or fuel as energy, after engine starts, water pump is rotated by transmission device, the centrifugal force of impeller inside water pump is generated when high speed rotates, water is sucked from inlet, and high pressure water is discharged from outlet after pressurization. High pressure water is transported to flushing spray head through high pressure water pipe, and the high pressure water is sprayed into sewer pipeline according to the set injection mode, and the dirt, sundries etc. in pipeline are washed away by the impact force of high pressure water, so as to achieve the purpose of cleaning pipeline. Pipeline flushing machine can be used for city sewer pipeline cleaning, industrial pipeline cleaning, municipal engineering pipeline cleaning, building construction pipeline cleaning etc., can clean various blockages and sediments in pipeline, and keep pipeline unobstructed.

[0003] Pipeline flushing machine has high pressure water outlet and backwater two states when working, when the equipment is just started, the temperature of engine has not reached the most suitable working temperature, at this time, the equipment needs to be in backwater state to preheat, when engine preheating is completed, the equipment is switched to high pressure water outlet state, and high pressure water is sprayed through water pipe to flush pipeline. The switching of high pressure water and backwater two states of pipeline flushing machine is realized by electric three-way reversing valve, when high pressure water is output, the impeller of water pump rotates at high speed, at this time, the engine needs to be switched from low speed (or idle speed) working condition to high speed working condition, i.e. the engine is throttled. The throttle control of prior art engine is realized by manual pull wire, when high pressure water is switched, the operator needs to control electric three-way valve to realize pipeline reversing first, and then pull the throttle pull wire of engine to throttle, and the operation is relatively inconvenient. UTILITY MODEL CONTENTS

[0004] The utility model provides a pipeline flushing machine water pump and throttle control structure and pipeline flushing machine, and aims at solving the problem that engine needs manual throttle in prior art when high pressure and backwater are switched.

[0005] To achieve the above object, the utility model adopts the technical scheme of providing a pipeline flushing machine water pump and throttle control structure, comprising outlet pipe and pressure throttle switch, the outlet pipe is used to be connected with the water outlet end of water pump, the pressure throttle switch is arranged in the outlet pipe, and the pressure throttle switch comprises:

[0006] A shell has a sliding cavity inside, one end of the shell is provided with a pressure sensing hole, the other end of the shell is provided with a guide hole, the pressure sensing hole is communicated with the sliding cavity, and the end of the shell provided with the pressure sensing hole is connected with the water outlet pipe;

[0007] A piston rod is arranged in the sliding cavity and slidably connected with the sliding cavity, and the other end of the piston rod is connected with the throttle cable of the engine after penetrating through the guide hole.

[0008] A spring is arranged between the piston rod and the inner wall of the sliding cavity and is configured to have a pre-tightening force for moving the piston rod to the pressure sensing hole.

[0009] In a possible implementation, the shell comprises:

[0010] A first shell is provided with the pressure sensing hole at one end and a first accommodating cavity at the other end.

[0011] A second shell is provided with the guide hole at one end and a second accommodating cavity at the other end, the end of the second shell provided with the second accommodating cavity is threadedly connected with the end of the first shell provided with the first accommodating cavity, the first accommodating cavity and the second accommodating cavity are opposite to form the sliding cavity, and the spring is arranged in the second accommodating cavity.

[0012] In a possible implementation, the piston rod comprises:

[0013] A piston head is slidably connected with the sliding cavity, the end of the piston head adjacent to the guide hole is provided with a connecting hole having an internal thread, the outer wall of the piston head is provided with a sealing groove around the circumference thereof, and a sealing ring is arranged in the sealing groove.

[0014] A connecting rod is threadedly connected with the connecting hole at one end and connected with the throttle cable after penetrating through the guide hole at the other end.

[0015] In a possible implementation, the end of the piston rod extending out of the sliding cavity is provided with a first connecting piece, and the first connecting piece is connected with the throttle cable.

[0016] In a possible implementation, the end of the shell provided with the pressure sensing hole has an external thread.

[0017] In a possible implementation, the pipeline flushing machine water pump and throttle control structure further comprises a guide sleeve arranged on one side of the shell, and the throttle cable penetrates through the guide sleeve.

[0018] In a possible implementation, the outer side of the shell is threadedly matched with two locking nuts, and a second connecting plate is clamped between the two locking nuts, and a clamping groove is formed in the second connecting plate, and the guide sleeve is accommodated in the clamping groove.

[0019] In a possible implementation, the guide sleeve is threadedly matched with two clamping nuts, and the two clamping nuts are respectively located on the two sides of the second connecting plate.

[0020] In a possible implementation, the guide sleeve is a bent hollow tube.

[0021] Compared with the prior art, the pipe flushing machine water pump and throttle control structure has the following beneficial effects:

[0022] Compared with the prior art, the pipe flushing machine water pump and throttle control structure includes a water outlet pipe and a pressure throttle switch, the pressure throttle switch includes a shell, a piston rod and a spring, the shell is communicated with one end of the water outlet pipe, and a pressure sensing hole is formed in the shell, when the water circuit is switched to a high-pressure state, water pressure can act on the piston rod through the pressure sensing hole, the piston rod is pushed to extend outward, and the engine throttle pull wire is driven to automatically increase the throttle. When the water circuit is switched to a backwater state, the water pressure is small, and under the action of the pre-tightening force of the spring, the piston rod moves into the sliding cavity, and the throttle pull wire is released to realize automatic throttle release. In this way, the linkage control of the water pump in the high-pressure / backwater state and the engine throttle can be realized, the manual operation steps are saved, and the use is more convenient.

[0023] In a second aspect, the utility model provides a pipe flushing machine, which comprises:

[0024] The pipe flushing machine water pump and throttle control structure according to any one of the above implementation manners;

[0025] An equipment support;

[0026] A power assembly comprising an engine, the engine being arranged on the equipment support, the engine having a throttle pull wire, and the piston rod being connected with the throttle pull wire.

[0027] A water tank arranged on the equipment support; and

[0028] A water supply assembly comprising a water pump, the water pump being arranged on the equipment support, the water pump being drivingly connected with a crankshaft of the engine, an inlet end of the water pump being communicated with the water tank, an outlet end of the water pump being connected with the water outlet pipe, and the shell being arranged on the water outlet pipe.

[0029] The pipeline flushing machine provided by the utility model comprises the pipeline flushing machine water pump and the throttle control structure provided by any one of the implementation manners, has the same technical effect, and will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0030] The drawings incorporated into the specification and forming a part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of not paying creative labor.

[0032] One or more embodiments are exemplarily illustrated by the pictures in the drawings corresponding thereto, and the exemplarily illustrations do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings represent similar elements, and the drawings in the drawings do not constitute a proportional limitation unless specially stated.

[0033] Figure 1 A perspective view of the pipeline flushing machine water pump and the throttle control structure provided by the embodiments of the present application;

[0034] Figure 2 An internal sectional view of the pipeline flushing machine water pump and the throttle control structure provided by the embodiments of the present application.

[0035] Explanation of reference numerals:

[0036] 10, shell; 11, first shell; 111, pressure sensing hole; 12, second shell; 121, guide hole; 13, locking nut; 14, second connecting plate; 20, piston rod; 21, piston head; 211, sealing ring; 22, connecting rod; 23, first connecting plate; 30, spring; 40, guide sleeve; 41, clamping nut; 50, throttle pull wire. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application, and obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0038] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For purposes of simplicity of the present disclosure, the following description will refer to specific examples. It is important to note, however, that the present application can be practiced in a variety of arrangements beyond the specific examples described. Specifically, although the present application is described in terms of a number of embodiments, it should be apparent that the application can be embodied in many other forms and that the application as described should not be construed as limited to the embodiments set forth herein. Rather, the embodiments described herein are provided by way of example only and should not be used to limit or restrict the overall scope of the application. Also, the present application can be used in a variety of different applications beyond the specific examples described herein. Furthermore, the application can be used in combination with other applications and components not expressly described herein. Moreover, the disclosure of the application is not limited to the specific examples described herein, but the overall scope of the application can include any modifications and / or improvements within the spirit and scope of the appended claims.

[0039] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", and derivatives thereof shall relate to the application as oriented in the drawing figures. However, it is to be understood that the application can assume various alternative orientations and, accordingly, such terms are not to be taken as limitations of the present application or any specific embodiment described herein.

[0040] Reference is made to Figure 1 and Figure 2 , the first aspect, the utility model discloses a pipeline flusher water pump and throttle control structure, including outlet pipe and pressure throttle switch, outlet pipe is used for with the water outlet end of water pump is connected, and pressure throttle switch is located in outlet pipe.

[0041] Pressure throttle switch includes shell 10, piston rod 20 and spring 30. The inside of shell 10 has sliding cavity, and the one end of shell 10 is provided with pressure sensing hole 111, and the other end is provided with guide hole 121, and pressure sensing hole 111 is communicated with sliding cavity, and the one end of shell 10 provided with pressure sensing hole 111 is connected with outlet pipe;Piston rod 20 one end is located in sliding cavity, and is slidably connected with sliding cavity, and the other end is connected with the throttle pull wire 50 of engine after penetrating the guide hole 121;Spring 30 is located between piston rod 20 and the inner wall of sliding cavity, and is configured with the pre-tightening force that makes piston rod 20 move to pressure sensing hole 111, when pressure is small or is in the backwater state, spring 30 pushes piston rod 20 and retracts, and releases throttle pull wire 50.

[0042] Compared with the prior art, the beneficial effects of the pipeline flushing machine water pump and throttle control structure provided by the embodiments of the utility model are that

[0043] Compared with the prior art, the pipeline flushing machine water pump and throttle control structure provided by the embodiments of the utility model comprise a water outlet pipe and a pressure throttle switch, the pressure throttle switch comprises a shell 10, a piston rod 20 and a spring 30, the shell 10 is provided with a pressure sensing hole 111 at one end in communication with the water outlet pipe, when the water circuit is switched to a high pressure state, water pressure can act on the piston rod 20 through the pressure sensing hole 111, the piston rod 20 is pushed to extend outward, and the engine throttle pull wire 50 is driven to automatically increase the throttle, when the water circuit is switched to a backwater state, the water pressure is small, under the action of the pre-tightening force of the spring 30, the piston rod 20 moves into the sliding cavity, and the throttle pull wire 50 is released to realize the operation of automatically releasing the throttle. In this way, the linkage control of the high pressure / backwater state of the water pump and the engine throttle can be realized, the step of manual operation is saved, and use is more convenient.

[0044] The shell 10 can be cylindrical in shape, small in volume and compact in structure, the shell 10 can be fixed through the thread structure of the shell 10 or with the aid of a mounting bracket, the shell 10 is arranged on the water outlet pipe of the pipeline flushing machine, and the switching of water pressure can be sensed.

[0045] Please refer to Figure 1 and Figure 2 In some possible embodiments, the shell 10 comprises a first shell body 11 and a second shell body 12, the first shell body 11 is provided with a pressure sensing hole 111 at one end and a first accommodating cavity at the other end, the second shell body 12 is provided with a guide hole 121 at one end and a second accommodating cavity at the other end, one end of the second shell body 12 provided with the second accommodating cavity is threadedly connected to one end of the first shell body 11 provided with the first accommodating cavity, the first accommodating cavity and the second accommodating cavity are opposite to form a sliding cavity, and the spring 30 is arranged in the second accommodating cavity.

[0046] When assembling, first, the piston rod 20 is installed in place, then the first shell body 11 and the second shell body 12 are closed and tightened to a proper torque, and finally the assembled pressure throttle switch is installed on the water outlet circuit of the pipeline flushing machine.

[0047] Please refer to Figure 2In some possible embodiments, the piston rod 20 comprises a piston head 21 and a connecting rod 22, the piston head 21 is slidingly fitted in the sliding cavity, the piston head 21 is provided with a connecting hole having an internal thread at one end adjacent to the guide hole 121, a sealing groove is formed around the outer wall of the piston head 21 in the circumferential direction thereof, and a sealing ring 211, specifically an O-shaped sealing ring, is sleeved in the sealing groove, which functions to prevent water from leaking from the guide hole 121; one end of the connecting rod 22 extends into the sliding cavity and is threadedly connected with the connecting hole, and the other end penetrates through the guide hole 121 and is connected with the throttle pull wire 50.

[0048] Referring to Figure 1 and Figure 2 In some possible embodiments, the piston rod 20 is provided with a first connecting piece 23 at one end extending out of the sliding cavity, the first connecting piece 23 is connected with the throttle pull wire 50, one end of the throttle pull wire 50 is connected with the first connecting piece 23, and the other end is connected with the engine.

[0049] Referring to Figure 1 In some possible embodiments, one end of the outer shell 10 provided with the pressure sensing hole 111 has an external thread for threadedly connecting with a corresponding mounting position on the water outlet pipe, facilitating installation and fixation.

[0050] Referring to Figure 1 and Figure 2 In some possible embodiments, the pipeline flushing machine water pump and throttle control structure further comprises a guide sleeve 40 arranged on one side of the outer shell 10, the throttle pull wire 50 penetrates through the guide sleeve 40, the guide sleeve 40 functions to guide and reverse, preventing the throttle pull wire 50 from interfering with and rubbing against other components.

[0051] Referring to Figure 1 and Figure 2 In some possible embodiments, the outer side of the outer shell 10 is threadedly fitted with two locking nuts 13, the second connecting piece 14 is clamped between the two locking nuts 13, the guide sleeve 40 is accommodated in the clamping groove formed in the second connecting piece 14, and the second connecting piece 14 is used to assist in fixing the guide sleeve 40.

[0052] Referring to Figure 1 and Figure 2 In some possible embodiments, the guide sleeve 40 is threadedly fitted with two clamping nuts 41, the two clamping nuts 41 are respectively located on the two sides of the second connecting piece 14, and tightening the two clamping nuts 41 can stably clamp the second connecting piece 14.

[0053] Referring to Figure 1 and Figure 2 In some possible embodiments, the guide sleeve 40 is a bent hollow pipe through which the throttle pull wire 50 can penetrate.

[0054] In a second aspect, the utility model discloses a pipeline flusher, including pipeline flusher water pump and throttle control structure, equipment support, power component, water tank and water supply component. Power component includes engine, and engine is located at equipment support, and engine has throttle pull wire 50, and piston rod 20 is connected with throttle pull wire 50;Water tank is located at equipment support;Water supply component includes water pump, and water pump is located at equipment support, and water pump is connected with the crankshaft of engine, and the water inlet end of water pump is communicated with water tank, and the water outlet end of water pump is connected with water outlet pipe, and shell 10 is located at water outlet pipe.

[0055] The pipeline flusher provided by the utility model adopts a fuel engine as a power source, which can be a gasoline or diesel engine available on the market, the engine has a throttle pull wire 50, pulling the throttle pull wire 50 can increase the throttle, improve the output power of the engine, releasing the throttle pull wire 50 can loosen the throttle, reduce the output power of the engine. The output shaft of the engine and the input shaft of the water pump are connected through a speed reducer, and the engine can drive the water pump to operate. The water pump works to pump water from the water tank and generate high-pressure water to be sprayed from the water outlet pipe, for flushing and cleaning the sewer pipeline. A three-way reversing valve is arranged on the water outlet waterway, and the water outlet and water return states can be switched by changing the valve position of the reversing valve.

[0056] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0057] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0058] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0059] In the present application, unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", "linking", and the like should be construed broadly and can include various forms of connections, such as connection and detachable connection, or integral connection; mechanical connection, or electrical connection; direct connection, or indirect connection via an intermediate medium; internal communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

[0060] In the present application, unless specifically defined otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0061] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0062] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, any modifications and variations of the present application within the scope of the claims of the present application and their equivalents are intended to be included in the present application.

[0063] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A plumbing machine water pump and throttle control structure, characterized by, The pressure throttle switch comprises a water outlet pipe and a pressure throttle switch, the water outlet pipe is used for being connected with a water outlet end of a water pump, the pressure throttle switch is arranged on the water outlet pipe, and the pressure throttle switch comprises: A shell (10) internally has a sliding cavity, one end of the shell (10) is provided with a pressure sensing hole (111), the other end of the shell (10) is provided with a guide hole (121), the pressure sensing hole (111) is communicated with the sliding cavity, and one end of the shell (10) provided with the pressure sensing hole (111) is connected with the water outlet pipe; A piston rod (20) is arranged in the sliding cavity and is in sliding fit with the sliding cavity, the other end of the piston rod (20) penetrates through the guide hole (121) and is connected with a throttle pull wire (50) of an engine; and A spring (30) is arranged between the piston rod (20) and the inner wall of the sliding cavity and is configured with a pre-tightening force for moving the piston rod (20) to the pressure sensing hole (111).

2. A plumbing machine water pump and throttle control structure according to claim 1, wherein, The shell (10) comprises: A first shell (11) is provided with the pressure sensing hole (111) at one end and is provided with a first accommodating cavity at the other end; and A second shell (12) is provided with the guide hole (121) at one end and is provided with a second accommodating cavity at the other end, one end of the second shell (12) provided with the second accommodating cavity is threadedly connected with one end of the first shell (11) provided with the first accommodating cavity, the first accommodating cavity and the second accommodating cavity are opposite to form the sliding cavity, and the spring (30) is arranged in the second accommodating cavity.

3. A plumbing machine water pump and throttle control structure according to claim 1, wherein, The piston rod (20) comprises: A piston head (21) is in sliding fit with the sliding cavity, one end of the piston head (21) adjacent to the guide hole (121) is provided with a connecting hole, the connecting hole is internally threadedly connected with the throttle pull wire (50), the outer wall of the piston head (21) is provided with a sealing groove around the circumference thereof, and a sealing ring (211) is arranged in the sealing groove; and A connecting rod (22) is threadedly connected with the connecting hole and is connected with the throttle pull wire (50).

4. A plumbing machine water pump and throttle control structure according to claim 1, wherein One end of the piston rod (20) extending out of the sliding cavity is provided with a first connecting plate (23), and the first connecting plate (23) is connected with the throttle pull wire (50).

5. A plumbing machine water pump and throttle control structure according to claim 1, wherein, One end of the shell (10) provided with the pressure sensing hole (111) is externally threadedly connected.

6. A plumbing machine water pump and throttle control structure according to claim 1, wherein, The pressure throttle switch further comprises a guide sleeve (40), the guide sleeve (40) is arranged on one side of the shell (10), and the throttle pull wire (50) penetrates through the guide sleeve (40).

7. A plumbing machine water pump and throttle control structure according to claim 6, wherein Two locking nuts (13) are threadedly connected on the outer side of the shell (10), a second connecting plate (14) is clamped between the two locking nuts (13), a clamping groove is formed in the second connecting plate (14), and the guide sleeve (40) is arranged in the clamping groove.

8. A plumbing machine water pump and throttle control structure according to claim 7, wherein, Two clamping nuts (41) are threadedly connected on the guide sleeve (40), and the two clamping nuts (41) are respectively arranged on the two sides of the second connecting plate (14).

9. A plumbing machine water pump and throttle control structure according to claim 6, wherein, The guide sleeve (40) is a bent hollow pipe.

10. A pipe flushing machine characterized by, The pressure throttle switch comprises: A pipeline flushing machine water pump and throttle control structure according to any one of claims 1-9; An equipment support; A power assembly comprising an engine, the engine being arranged on the equipment support, the engine having a throttle cable (50), the piston rod (20) being connected with the throttle cable (50); A water tank arranged on the equipment support; and A water supply assembly comprising a water pump, the water pump being arranged on the equipment support, the water pump being drivingly connected with a crankshaft of the engine, a water inlet end of the water pump being in communication with the water tank, a water outlet end of the water pump being connected with the water outlet pipe, the outer shell (10) being arranged on the water outlet pipe.

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