Pulse type pipe washing auxiliary propelling device

Abstract

The utility model discloses a pulse type pipe washing auxiliary propelling device, which belongs to the technical field of pulse type pipe washing auxiliary propelling devices, and comprises a shell, the left side surface of the shell is fixedly connected with an expansion shell, the inner bottom wall of the shell is fixedly connected with a limiting groove, the inner wall of the limiting groove is slidably connected with a rack, and the outer side of the shell is provided with a speed regulating motor; the power output end of the speed adjusting motor penetrates through the shell and is fixedly connected with an intermittent gear, the outer surface of the intermittent gear is fixedly connected with two bearings, the outer ring of each bearing is fixedly connected with the inner wall of the shell, an injection pipe is arranged in the shell, the inner wall of the injection pipe is slidably connected with a movable plug, and the front face of the movable plug is fixedly connected with a spring. The end, away from the movable plug, of the spring makes contact with the back face of the injection pipe. The pulse type pipe washing auxiliary propelling device achieves the purpose of simulating the pulse type pipe washing effect by setting the rotating speed according to the intermittent meshing principle, and has the advantages of being uniform in pipe washing speed and consistent in liquid washing amount and pipe washing force.

Description

Technical Field

[0001] This application belongs to the technical field of pulsed flushing tube assisted propulsion, and particularly relates to a pulsed flushing tube assisted propulsion device. Background Art

[0002] A pulsed flushing tube is a device that can generate high-intensity, high-pressure, short-time shock wave pulses. Usually, the methods of pulsed flushing tube and positive pressure tube sealing are adopted, which can effectively prevent the blockage of CVC. Pulsed flushing tube, that is, the method of "push-stop-push" is used to flush the tube. Compared with continuous injection flushing tube, pulsed flushing tube can form small vortices in the catheter, which helps to wash away the residual drug solution attached to the catheter and blood vessel wall.

[0003] In clinical nursing operations, improper pulsed flushing tube methods are likely to cause catheter blockage. Especially, mucous substances such as blood products and substances with high precipitation risk are likely to remain on the catheter wall, and it is also easy to induce early catheter-related infections. In clinical practice, operators often have poor control over the technique of pulsed flushing tube, the amount of flushing fluid, and the injection speed, thus affecting the service life of the catheter and even the treatment effect of patients.

[0004] Therefore, we propose a pulsed flushing tube assisted propulsion device to solve the above problems. Utility Model Content

[0005] The purpose of this application is to solve the problem that in the prior art, operators often have poor control over the technique of pulsed flushing tube, the amount of flushing fluid, and the injection speed, and to propose a pulsed flushing tube assisted propulsion device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A pulsed flushing tube assisted propulsion device includes a housing. The left side surface of the housing is fixedly connected with an extension housing. The inner bottom wall of the housing is fixedly connected with a limiting groove. The inner wall of the limiting groove is slidably connected with a rack. A speed regulating motor is arranged on the outer side of the housing. The output end of the power of the speed regulating motor penetrates through the housing and is fixedly connected with an intermittent gear. Two bearings are fixedly connected to the outer surface of the intermittent gear. The outer ring of each bearing is fixedly connected with the inner wall of the housing. An injection tube is arranged inside the housing. A movable plug is slidably connected to the inner wall of the injection tube. A spring is fixedly connected to the front surface of the movable plug. The end of the spring away from the movable plug is in contact with the back surface of the injection tube. A connecting tube is fixedly communicated with the outer surface of the injection tube. The connecting tube is located inside the extension housing. A one-way valve is fixedly communicated with the outer surface of the connecting tube. One end of the connecting tube away from the one-way valve is fixedly communicated with a flushing liquid bottle. The bottom surface of the flushing liquid bottle is in contact with the upper surface of the extension housing.

[0008] Preferably, a top cover is threadedly connected to the upper surface of the flushing liquid bottle, and a scale is fixedly connected to the outer surface of the flushing liquid bottle.

[0009] Preferably, a liquid injection head is clamped on the outer surface of the injection tube, and the liquid injection head is located outside the housing.

[0010] Preferably, a push plate is fixedly connected to the front surface of the rack, and the front surface of the push plate is in contact with the back surface of the movable plug.

[0011] Preferably, four feet are fixedly connected to the bottom surface of the housing, and the upper surface of one of the feet is fixedly connected to the bottom surface of the extension housing.

[0012] Preferably, a protective housing is fixedly connected to the left side surface of the housing, a heat dissipation net is fixedly connected to the inner wall of the protective housing, and the bottom surface of the speed regulation motor is fixedly connected to the inner bottom wall of the protective housing.

[0013] Preferably, a cover plate is slidably connected to the upper surface of the housing, a back plate is fixedly connected to the back surface of the cover plate, and the front surface of the back plate is in contact with the back surface of the housing.

[0014] Preferably, a handle is fixedly connected to the upper surface of the cover plate, and a protective sleeve is sleeved on the outer surface of the handle.

[0015] In summary, the technical effects and advantages of this application are as follows:

[0016] 1. By setting the mutual cooperation of the housing, the extension housing, the limiting groove, the rack, the speed regulation motor, the bearing and the intermittent gear, the rack is limited and fixed by the limiting groove, and the power provided by the speed regulation motor can drive the intermittent gear to rotate. Restricted by two bearings, the intermittent gear can rotate on the inner wall of the housing. Using the meshing connection between the intermittent gear and the rack, the intermittent gear can drive the rack and make the rack move, achieving the effect of intermittently pushing the rack to move. Furthermore, the effect of simulating pulsed tube flushing can be achieved by setting the rotation speed of the speed regulation motor;

[0017] 2. By setting the mutual cooperation of the injection tube, the movable plug, the spring, the connecting tube, the flushing liquid bottle and the one-way valve, the flushing liquid inside the flushing liquid bottle enters the inside of the injection tube through the connecting tube and the one-way valve. The power of the rack is used to drive the movable plug to flow out the flushing liquid from the outlet of the injection tube for tube flushing. The design of the one-way valve ensures that the flushing liquid will not be squeezed back into the flushing liquid bottle when squeezing the flushing liquid, and the spring can restore the position of the movable plug to prepare for the next tube flushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the housing of the present utility model;

[0019] Figure 2Schematic diagram of the rear view three-dimensional structure of the expansion shell of the present utility model;

[0020] Figure 3 Schematic diagram of the three-dimensional structure of the limiting groove of the present utility model;

[0021] Figure 4 Schematic diagram of the three-dimensional structure of the flushing liquid bottle of the present utility model.

[0022] In the figure: 1. Outer shell; 2. Expansion shell; 3. Limiting groove; 4. Rack; 5. Speed-regulating motor; 6. Bearing; 7. Intermittent gear; 8. Flushing tube; 9. Movable plug; 10. Spring; 11. Connecting tube; 12. Flushing liquid bottle; 13. Check valve; 14. Top cover; 15. Scale; 16. Liquid injection head; 17. Push plate; 18. Foot pad; 19. Protective shell; 20. Heat dissipation net; 21. Cover plate; 22. Back plate; 23. Handle; 24. Protective sleeve. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Referring to Figures 1-4 , a pulse flushing tube auxiliary propulsion device includes an outer shell 1. The left side surface of the outer shell 1 is fixedly connected with an expansion shell 2. The bottom surface of the outer shell 1 is fixedly connected with four foot pads 18. The upper surface of one of the foot pads 18 is fixedly connected with the bottom surface of the expansion shell 2. The foot pads 18 can play an anti-slip effect and make the device more stable when placed on the table.

[0025] The inner bottom wall of the outer shell 1 is fixedly connected with a limiting groove 3. The inner wall of the limiting groove 3 is slidably connected with a rack 4. The front surface of the rack 4 is fixedly connected with a push plate 17. The front surface of the push plate 17 is in contact with the back surface of the movable plug 9. The push plate 17 can transfer the thrust of the translational movement of the rack 4 to the movable plug 9 and can push the movable plug 9 to move.

[0026] A speed-regulating motor 5 is arranged on the outer side of the outer shell 1. The output end of the power of the speed-regulating motor 5 penetrates the outer shell 1 and is fixedly connected with an intermittent gear 7. The outer surface of the intermittent gear 7 is fixedly connected with two bearings 6. The outer ring of each bearing 6 is fixedly connected with the inner wall of the outer shell 1. An injection tube 8 is arranged inside the outer shell 1. The outer surface of the injection tube 8 is clamped with a liquid injection head 16. The liquid injection head 16 is located outside the outer shell 1. The liquid injection head 16 is used to penetrate into the interior of other devices of the flushing tube to ensure relatively high sealing performance.

[0027] A movable plug 9 is slidably connected to the inner wall of the injection tube 8. A spring 10 is fixedly connected to the front surface of the movable plug 9. One end of the spring 10 away from the movable plug 9 is in contact with the back surface of the injection tube 8. A protective case 19 is fixedly connected to the left side surface of the housing 1. A heat dissipation net 20 is fixedly connected to the inner wall of the protective case 19. The bottom wall of the inner side of the protective case 19 is fixedly connected to the bottom surface of the speed regulating motor 5. The protective case 19 plays a role in protecting the speed regulating motor 5, can also reduce noise and protect the safety of the user. The heat dissipation net 20 is used for dissipating heat from the speed regulating motor 5 and also plays a role in protecting the safety of the user.

[0028] A connecting pipe 11 is fixedly communicated with the outer surface of the injection tube 8. The connecting pipe 11 is located inside the extension shell 2. A one-way valve 13 is fixedly communicated with the outer surface of the connecting pipe 11. A cover plate 21 is slidably connected to the upper surface of the housing 1. A back plate 22 is fixedly connected to the back surface of the cover plate 21. The front surface of the back plate 22 is in contact with the back surface of the housing 1. The cooperation of the cover plate 21 and the back plate 22 further reduces the noise of the device.

[0029] One end of the connecting pipe 11 away from the one-way valve 13 is fixedly communicated with a liquid injection bottle 12. The bottom surface of the liquid injection bottle 12 is in contact with the upper surface of the extension shell 2. A top cover 14 is threadedly connected to the upper surface of the liquid injection bottle 12. A scale 15 is fixedly connected to the outer surface of the liquid injection bottle 12. The top cover 14 is used for sealing the liquid injection bottle 12 to ensure that the injected liquid is not contaminated. The scale 15 is used for observing and marking the dosage of the injected liquid.

[0030] A handle 23 is fixedly connected to the upper surface of the cover plate 21. A protective sleeve 24 is sleeved on the outer surface of the handle 23. The handle 23 is convenient for moving the device. The protective sleeve 24 plays a role in anti-slip.

[0031] The working principle of the present utility model is as follows: When in use, first, the speed regulating motor 5 is electrically connected through a wire. Then, the power provided by the speed regulating motor 5 can drive the intermittent gear 7 to rotate. Restricted by two bearings 6, the intermittent gear 7 can rotate stably on the inner wall of the housing 1. Utilizing the meshing connection relationship between the intermittent gear 7 and the rack 4, the intermittent gear 7 can drive the rack 4 to move back and forth, achieving the effect of intermittently pushing the rack 4 to move back and forth, and further, the effect of simulating pulsed tube flushing can be achieved by setting the rotation speed of the speed regulating motor 5.

[0032] Then, put the required flushing liquid into the interior of the flushing liquid bottle 12, and tighten the top cover 14. At this time, the flushing liquid inside the flushing liquid bottle 12 enters the interior of the injection tube 8 through the connecting tube 11 and the one-way valve 13. This is to drive the push plate 17 by the power driven by the rack 4, and the push plate 17 pushes the movable plug 9 to discharge the flushing liquid from the outlet of the injection tube 8 for tube flushing. At this time, by the design of the one-way valve 13, it is ensured that the flushing liquid will not be squeezed back into the interior of the flushing liquid bottle 12 when squeezing the flushing liquid. When the intermittent gear 7 rotates to the blank position, the spring 10 can restore the position of the movable plug 9 to prepare for the next tube flushing, achieving the purpose of this pulsed tube flushing auxiliary propulsion device, which uses the principle of intermittent meshing and simulates the pulsed tube flushing effect by setting the rotational speed, and has the advantages of uniform tube flushing speed, consistent flushing liquid volume and tube flushing force.

[0033] In the description of the present invention, 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", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes an equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. A pulse - type tube flushing auxiliary propulsion device, including a housing (1), characterized in that: A telescopic housing (2) is fixedly connected to the left side surface of the housing (1). A limiting groove (3) is fixedly connected to the inner bottom wall of the housing (1). A rack (4) is slidably connected to the inner wall of the limiting groove (3); A speed - regulating motor (5) is arranged on the outer side of the housing (1). The output end of the power of the speed - regulating motor (5) penetrates through the housing (1) and is fixedly connected to an intermittent gear (7). Two bearings (6) are fixedly connected to the outer surface of the intermittent gear (7). The outer ring of each bearing (6) is fixedly connected to the inner wall of the housing (1); A flushing tube (8) is arranged inside the housing (1). A movable plug (9) is slidably connected to the inner wall of the flushing tube (8). A spring (10) is fixedly connected to the front surface of the movable plug (9). The end of the spring (10) far from the movable plug (9) is in contact with the back surface of the flushing tube (8); A connecting tube (11) is fixedly communicated with the outer surface of the flushing tube (8). The connecting tube (11) is located inside the telescopic housing (2). A one - way valve (13) is fixedly communicated with the outer surface of the connecting tube (11); One end of the connecting tube (11) far from the one - way valve (13) is fixedly communicated with a flushing liquid bottle (12). The bottom surface of the flushing liquid bottle (12) is in contact with the upper surface of the telescopic housing (2).

2. The pulse tube flushing auxiliary propulsion device according to claim 1, wherein: A top cover (14) is threadedly connected to the upper surface of the flushing liquid bottle (12). A scale (15) is fixedly connected to the outer surface of the flushing liquid bottle (12).

3. A pulse tube flushing assisted propulsion device according to claim 2, characterized in that: A liquid injection head (16) is clamped on the outer surface of the flushing tube (8). The liquid injection head (16) is located outside the housing (1).

4. A pulse flushing tube auxiliary propulsion device according to claim 3, characterized in that: A push plate (17) is fixedly connected to the front surface of the rack (4). The front surface of the push plate (17) is in contact with the back surface of the movable plug (9).

5. The pulse tube flushing auxiliary propulsion device according to claim 4, characterized in that: Four feet (18) are fixedly connected to the bottom surface of the housing (1). The upper surface of one of the feet (18) is fixedly connected to the bottom surface of the telescopic housing (2).

6. The pulse tube flushing assisted propulsion device according to claim 5, wherein: A protective housing (19) is fixedly connected to the left side surface of the housing (1). A heat - dissipation net (20) is fixedly connected to the inner wall of the protective housing (19). The inner bottom wall of the protective housing (19) is fixedly connected to the bottom surface of the speed - regulating motor (5).

7. A pulsed tube flushing auxiliary propulsion device according to claim 6, characterized in that: A cover plate (21) is slidably connected to the upper surface of the housing (1). A back plate (22) is fixedly connected to the back surface of the cover plate (21). The front surface of the back plate (22) is in contact with the back surface of the housing (1).

8. A pulse flushing tube auxiliary propulsion device according to claim 7, characterized in that: A handle (23) is fixedly connected to the upper surface of the cover plate (21). A protective sleeve (24) is sleeved on the outer surface of the handle (23).

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