Non-contact flow regulating device and flow regulating equipment

Abstract

The utility model discloses a non-contact flow regulating device, which relates to the technical field of flow regulation and comprises a base. The rotary driving part is arranged on the base, the output end of the rotary driving part is connected with the cam, a gap between the cam and the base is used for allowing the hose to penetrate through, and the rotary driving part is used for driving the cam to rotate so that one side of the cam can extrude the hose and change the flow of fluid in the hose; the shaping groove is formed in the other side of the cam, the inner wall of the shaping groove is connected with the cam through a guide cambered surface, and the guide cambered surface is used for extruding the hose so that the hose can stretch into the shaping groove, and the hose can be attached to the inner wall of the shaping groove and restore to the original shape. The shaping groove in the cam in the non-contact flow adjusting device can make the hose restore to the original shape, the problem that the hose cannot restore to the original shape due to the fact that the elasticity and the deformation capacity are reduced is solved, and the flow adjusting accuracy of the non-contact flow adjusting device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow regulation, in particular to a non-contact flow regulation device and flow regulation equipment. Background Art

[0002] A flow regulating device is a device used to control the flow of a fluid. The flow regulating device is used to adjust the flow of the fluid according to demand to ensure the normal operation of the system under different working conditions or to achieve specific flow control goals. A non-contact flow regulating device is a flow regulating device that does not require direct contact with the fluid, such as a cam flow regulating device. The adjustment principle of the cam flow regulating device is to adjust the degree of extrusion of the hose based on the movement of the cam, causing the hose to deform, thereby adjusting the flow of the fluid in the hose. The hose will suffer fatigue damage under long-term and frequent use and extrusion, which reduces the elasticity and deformation ability of the hose, resulting in the hose being unable to return to its original shape. When the hose cannot return to its original shape, its shape change becomes unpredictable, making the flow regulation uncontrollable or difficult to accurately control, which is not conducive to improving the adjustment accuracy of the flow regulating device. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a non-contact flow regulating device, which is conducive to improving the regulating accuracy of the flow regulating device.

[0004] The utility model also provides a flow regulating device including a non-contact flow regulating device.

[0005] According to the first embodiment of the present invention, the non-contact flow regulating device includes:

[0006] base;

[0007] a rotary drive member and a cam, wherein the rotary drive member is disposed on the base, an output end of the rotary drive member is connected to the cam, a gap between the cam and the base is used for passing a hose, such that the rotation axis of the cam is perpendicular to the hose, and the rotary drive member is used to drive the cam to rotate so that one side of the cam can squeeze the hose and change the flow rate of the fluid in the hose;

[0008] A shaping groove is provided on the other side of the cam, wherein the inner wall of the shaping groove is connected to the cam via a guide arc surface, and the guide arc surface is used to squeeze the hose so that the hose extends into the shaping groove and fits the inner wall of the shaping groove and returns to its original shape.

[0009] It has at least the following beneficial effects:

[0010] The hose is threaded between the cam and the base. When the fluid flow within the hose needs to be adjusted, the rotary drive element rotates the protrusion, causing one side of the protrusion to squeeze the hose. This squeezing deforms the hose and changes its effective cross-sectional area, thereby regulating the fluid flow within the hose. A shaping groove is defined on the other side of the cam, with the inner wall of the shaping groove connected to the cam via a guide arc. As the cam rotates, the guide arc contacts the hose and gradually squeezes it. Because the guide arc serves as a guide for the hose, the hose deforms and gradually extends into the shaping groove. As the cam continues to rotate, the hose adheres to the inner wall of the shaping groove, which shapes the hose, limiting its deformation and allowing it to return to its original shape. The shaping groove on the cam in this non-contact flow control device allows the hose to return to its original shape, avoiding the problem of the hose being unable to return to its original shape due to reduced elasticity and deformability. This makes flow control more precise and controllable, and helps improve the flow control accuracy of the non-contact flow control device.

[0011] According to the non-contact flow regulating device of the first aspect embodiment of the present utility model, it also includes a support plate and an elastic member, the support plate is used to abut against the hose, the gap between the support plate and the cam is used for the hose to pass through, and the support plate is movably connected to the base through the elastic member so that the support plate can approach or move away from the cam.

[0012] According to the non-contact flow regulating device of the first embodiment of the present invention, the elastic member is a spring, one end of the spring abuts against the support plate, and the other end of the spring is connected to the base.

[0013] According to the non-contact flow regulating device of the first aspect of the present invention, it also includes a plurality of guide columns, one end of each of the plurality of guide columns is connected to the base, a plurality of guide holes are opened on the support plate, and the plurality of guide columns are respectively inserted into the plurality of guide holes.

[0014] According to the non-contact flow regulating device of the first embodiment of the present invention, the non-contact flow regulating device further includes a positioning assembly, which is used to abut against the hose so that the hose is perpendicular to the rotation axis of the cam.

[0015] According to the non-contact flow regulating device of the first aspect embodiment of the utility model, the number of the guide columns is four, and the positioning assembly includes two first positioning blocks and two second positioning blocks, the two first positioning blocks and the two second positioning blocks are all arranged above the support plate, the two first positioning blocks are respectively connected to the other end of two of the guide columns so that the two first positioning blocks can abut against the support plate, the two second positioning blocks are respectively connected to the other end of the other two guide columns so that the two second positioning blocks can abut against the support plate, the gap between the two first positioning blocks is used for the hose to pass through, and the gap between the two second positioning blocks is used for the hose to pass through, so that the hose is perpendicular to the rotation axis of the cam.

[0016] According to the non-contact flow regulating device of the first aspect of the present invention, it also includes a shell, which is detachably connected to the base, and a accommodating cavity is formed between the shell and the base, and the accommodating cavity is used to accommodate the rotating drive member and the cam. Two through-holes on the same side or opposite sides are opened on the shell, and the two through-holes are used for the hose to pass through.

[0017] According to the non-contact flow regulating device of the first embodiment of the present invention, a buckle groove is provided on the base, a buckle block is provided on the shell, and the shell is buckled to the base through the cooperation between the buckle block and the buckle groove.

[0018] According to the non-contact flow regulating device of the first embodiment of the present invention, the rotary driving member is a motor, and the output shaft of the motor is connected to the cam.

[0019] According to the flow regulating device of the second embodiment of the present invention, the flow regulating device further includes a mounting plate, and a plurality of the non-contact flow regulating devices are linearly arrayed on the mounting plate along the left-right direction.

[0020] It has at least the following beneficial effects:

[0021] The flow regulating device has all the beneficial effects brought by the above-mentioned non-contact flow regulating device, which will not be repeated here.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1This is a schematic cross-sectional view of the non-contact flow regulating device and the hose according to an embodiment of the present utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the non-contact flow control device according to an embodiment of the utility model with the outer shell removed;

[0026] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0027] Figure 4 This is a schematic structural diagram of the process of the shaping groove and the guide arc surface in the non-contact flow regulating device of the embodiment of the utility model restoring the hose to its original shape;

[0028] Figure 5 This is a schematic diagram of the top view of the non-contact flow regulating device of the utility model embodiment with the outer shell removed;

[0029] Figure 6 This is a schematic top view of the flow regulating device and multiple hoses according to an embodiment of the present utility model;

[0030] Reference numerals:

[0031] Base 100; support plate 110; guide column 120; first positioning block 130; second positioning block 140; buckle groove 150;

[0032] Rotating driving member 200;

[0033] Cam 300; shaping groove 310; guide arc surface 320;

[0034] Housing 400; Pipe hole 410;

[0035] Mounting plate 500. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] refer to Figures 1 to 4 According to an embodiment of the present invention, the non-contact flow regulating device includes:

[0041] base 100;

[0042] The rotary drive member 200 and the cam 300 are provided on the base 100. The output end of the rotary drive member 200 is connected to the cam 300. The gap between the cam 300 and the base 100 is used to allow the hose to pass through, so that the rotation axis of the cam 300 is perpendicular to the hose. The rotary drive member 200 is used to drive the cam 300 to rotate so that one side of the cam 300 can squeeze the hose and change the fluid flow in the hose.

[0043] The shaping groove 310 is provided on the other side of the cam 300. The inner wall of the shaping groove 310 is connected to the cam 300 via a guide arc surface 320. The guide arc surface 320 is used to squeeze the hose so that the hose extends into the shaping groove 310 and fits the hose to the inner wall of the shaping groove 310 and returns to its original shape.

[0044] As will be understood, the hose is threaded between the cam 300 and the base 100. To adjust the fluid flow within the hose, the rotary drive 200 rotates the protrusion, causing one side of the protrusion to squeeze the hose. This squeezing of the hose deforms the hose and changes its effective cross-sectional area, thereby regulating the fluid flow within the hose. A shaping groove 310 is defined on the other side of the cam 300. The inner wall of the shaping groove 310 connects with the cam 300 via a guide arc 320. As the cam 300 rotates, the guide arc 320 abuts against the hose and gradually squeezes it. Because the guide arc 320 guides the hose, the hose deforms and gradually extends into the shaping groove 310. As the cam 300 continues to rotate, the hose adheres to the inner wall of the shaping groove 310, which shapes the hose, limiting deformation and allowing it to return to its original shape. The shaping groove 310 on the cam 300 in the non-contact flow regulating device can restore the hose to its original shape, avoiding the problem of the hose being unable to restore to its original shape due to reduced elasticity and deformation ability, making the flow regulation precise and controllable, which is conducive to improving the flow regulation accuracy of the non-contact flow regulating device.

[0045] It should be explained that the reference Figure 4 , the length direction of the hose is defined as the front-to-back direction, and the direction perpendicular to the hose is the left-to-right direction. In the present invention, the guide arc surface 320 squeezes the left and right sides of the hose. The cam 300 rotates continuously, and the guide arc surface 320 will continue to squeeze the left and right sides of the hose. During this process, the hose will gradually recover its deformation and extend into the shaping groove 310. Finally, the inner wall of the shaping groove 310 will fit on the outer wall of the hose, thereby restoring the hose to its original shape. In the present invention, one side of the cam 300 is used to squeeze the hose, and the shaping groove 310 on the other side of the cam 300 is used to restore the hose to its original shape. In actual use, the rotary drive member 200 can rotate the cam 300 to shape the hose by rotating the shaping groove 310 each time before driving the cam 300 to rotate and squeeze the hose to adjust the fluid flow. It can also periodically drive the cam 300 to rotate to shape the hose by the shaping groove 310.

[0046] refer to Figure 1 and Figure 2The non-contact flow regulating device also includes a support plate 110 and an elastic member. The support plate 110 is used to abut against the hose. The gap between the support plate 110 and the cam 300 is used for the hose to pass through. The support plate 110 is movably connected to the base 100 through the elastic member so that the support plate 110 can move closer to or away from the cam 300. It is understandable that when the cam 300 squeezes the hose, the hose is deformed. The deformed hose will press against the support plate 110, causing the support plate 110 to drop away from the cam 300 and compress the elastic member. Under the upward elastic force of the elastic member, the support plate 110 can keep the hose pressed against the cam 300 at all times to prevent the cam 300 from failing. The elastic member and the support plate 110 can adjust the squeezing force applied to the hose, thereby adapting to changes in the fluid pressure inside the hose. When the cam 300 increases its squeezing force on the hose, or when the pressure inside the hose increases, the hose will generate a certain reaction force against the squeezing of the cam 300 and the support plate 110. At this time, the support plate 110 descends, and the elastic member compresses, offsetting part of the reaction force of the hose, thereby reducing the squeezing force on the hose and the pressure inside the hose, thereby ensuring that the hose can still function normally under different pressure conditions. In one embodiment of the present invention, the elastic member is a spring, one end of which abuts the support plate 110, and the other end of which is connected to the base 100.

[0047] refer to Figure 1 and Figure 2 The non-contact flow regulating device also includes a plurality of guide posts 120, one end of each of the plurality of guide posts 120 is connected to the base 100, a plurality of guide holes are provided on the support plate 110, and the plurality of guide posts 120 are respectively inserted into the plurality of guide holes. It can be understood that the plurality of guide posts 120 are respectively inserted into the plurality of guide holes on the support plate 110, and with the cooperation of the guide posts 120 and the inner wall of the guide holes, a guiding effect is played on the support plate 110, so that the support plate 110 can rise or fall smoothly, which is beneficial to improving the stability of the operation of the non-contact flow regulating device. As another embodiment of the present invention, the elastic member can be a spring, the number of the springs is consistent with the number of the guide posts 120, and the plurality of springs are respectively sleeved on the plurality of guide posts 120, one end of the spring is connected to the support plate 110, and the other end of the spring is connected to the base 100.

[0048] refer to Figure 2 and Figure 5A positioning assembly is provided on the support plate 110. The positioning assembly is used to abut against the hose so that the hose is perpendicular to the rotation axis of the cam 300. It can be understood that the positioning assembly abuts against the hose and positions the hose so that the hose is perpendicular to the rotation axis of the cam 300, even if the hose is parallel to the front-to-back direction, so that the cam 300 can smoothly squeeze the hose. As an embodiment of the present invention, the number of guide columns 120 is four, and the positioning assembly includes two first positioning blocks 130 and two second positioning blocks 140. The two first positioning blocks 130 and the two second positioning blocks 140 are all arranged above the support plate 110. The two first positioning blocks 130 are respectively connected to the other ends of two of the guide columns 120 so that the two first positioning blocks 130 can abut against the support plate 110. The two second positioning blocks 140 are respectively connected to the other ends of the other two guide columns 120 so that the two second positioning blocks 140 can abut against the support plate 110. The gap between the two first positioning blocks 130 is used for the hose to pass through, and the gap between the two second positioning blocks 140 is used for the hose to pass through so that the hose is perpendicular to the rotation axis of the cam 300.

[0049] It is understood that the two first positioning blocks 130 are respectively connected to the other ends of two of the guide posts 120, and the two second positioning blocks 140 are respectively connected to the other ends of the other two guide posts 120. The two first positioning blocks 130 and the two second positioning blocks 140 can abut against the support plate 110 and limit the upward travel of the support plate 110, preventing the support plate 110 from detaching from the four guide posts 120, thereby improving the smooth movement of the support plate 110. Furthermore, the gap between the two first positioning blocks 130 and the gap between the two second positioning blocks 140 are used to allow the hose to pass through. The two first positioning blocks 130 and the two second positioning blocks 140 can both abut against the hose. The two first positioning blocks 130 and the two second positioning blocks 140 both position the hose, ensuring that the hose is perpendicular to the rotation axis of the cam 300, even if the hose is parallel to the front-to-back direction, so that the cam 300 can smoothly squeeze the hose.

[0050] refer to Figure 1The non-contact flow control device also includes a housing 400, which is detachably connected to the base 100. A housing cavity is formed between the housing 400 and the base 100, which is used to accommodate the rotary drive member 200 and the cam 300. The housing 400 has two tube holes 410, one on the same side or the other side, each for passing a hose. It is understood that the housing 400 protects the rotary drive member 200 and the cam 300 from interference and contamination from the external environment, thereby ensuring that the rotary drive member 200 and the cam 300 can operate normally. More specifically, the support plate 110, the elastic member, the first positioning block 130, the second positioning block 140, and the guide post 120 are all disposed within the housing cavity. As one embodiment of the present invention, a buckle groove 150 is defined on the base 100, and a buckle block is provided on the housing 400. The housing 400 is buckled to the base 100 through the engagement between the buckle block and the buckle groove 150. It can be understood that the shell 400 is fastened to the buckle groove 150 on the base 100 through a buckle block, so that the shell 400 can be detachably connected to the base 100, so that the operator can remove the shell 400 to maintain the rotating drive member 200 and the cam 300, and it is also convenient for the operator to install the non-contact flow regulating device on the hose.

[0051] As an embodiment of the present invention, the rotating drive member 200 is a motor, and the output shaft of the motor is connected to the cam 300. Specifically, in the present invention, the motor is a PWM (Pulse Width Modulation) intelligent motor, and the PWM intelligent motor is an intelligent motor system controlled by pulse width modulation technology. Pulse width modulation is a technology for regulating voltage or current, and controls the speed, direction and power output of the motor by adjusting the duty cycle of the signal (the time ratio between the high level and the low level). The use of a PWM intelligent motor to drive the cam 300 to rotate can more accurately control the rotation angle of the cam 300, further improving the flow regulation accuracy of the non-contact flow regulation device.

[0052] The present invention also provides a flow regulating device, comprising a mounting plate and a plurality of non-contact flow regulating devices arranged in a linear array along the left-right direction on the mounting plate 500. The flow regulating device also includes a cover detachably connected to the mounting plate 500 and configured to cover the plurality of non-contact flow regulating devices. It will be appreciated that the flow regulating device is capable of simultaneously regulating the flow of fluid in multiple hoses.

[0053] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A non-contact flow regulating device, characterized in that: include: base; a rotary drive member and a cam, wherein the rotary drive member is disposed on the base, an output end of the rotary drive member is connected to the cam, a gap between the cam and the base is used for passing a hose, such that the rotation axis of the cam is perpendicular to the hose, and the rotary drive member is used to drive the cam to rotate so that one side of the cam can squeeze the hose and change the flow rate of the fluid in the hose; A shaping groove is provided on the other side of the cam, and the inner wall of the shaping groove is connected to the cam through a guide arc surface. The guide arc surface is used to squeeze the left and right sides of the hose so that the hose gradually recovers its deformation and extends into the shaping groove, and the hose fits against the inner wall of the shaping groove and recovers its original shape.

2. The non-contact flow regulating device according to claim 1, characterized in that: It also includes a support plate and an elastic member, the support plate is used to abut against the hose, the gap between the support plate and the cam is used for the hose to pass through, and the support plate is movably connected to the base through the elastic member so that the support plate can approach or move away from the cam.

3. The non-contact flow regulating device according to claim 2, characterized in that: The elastic member is a spring sheet, one end of which abuts against the support plate, and the other end of which is connected to the base.

4. The non-contact flow regulating device according to claim 2, characterized in that: It also includes a plurality of guide columns, one end of each of the plurality of guide columns is connected to the base, a plurality of guide holes are opened on the support plate, and the plurality of guide columns are respectively inserted into the plurality of guide holes.

5. The non-contact flow regulating device according to claim 4, characterized in that: The utility model further comprises a positioning assembly, wherein the positioning assembly is used for abutting against the hose so that the hose is perpendicular to the rotation axis of the cam.

6. The non-contact flow regulating device according to claim 5, characterized in that: There are four guide columns, and the positioning assembly includes two first positioning blocks and two second positioning blocks. The two first positioning blocks and the two second positioning blocks are both arranged above the support plate. The two first positioning blocks are respectively connected to the other ends of two of the guide columns so that the two first positioning blocks can abut against the support plate. The two second positioning blocks are respectively connected to the other ends of the other two guide columns so that the two second positioning blocks can abut against the support plate. The gap between the two first positioning blocks is used for the hose to pass through, and the gap between the two second positioning blocks is used for the hose to pass through so that the hose is perpendicular to the rotation axis of the cam.

7. The non-contact flow regulating device according to claim 1, characterized in that: It also includes a shell, which is detachably connected to the base. A accommodating cavity is formed between the shell and the base, and the accommodating cavity is used to accommodate the rotating drive member and the cam. Two through-holes on the same side or on opposite sides are opened on the shell, and the two through-holes are used for the hose to pass through.

8. The non-contact flow regulating device according to claim 7, characterized in that: A buckle groove is provided on the base, a buckle block is provided on the shell, and the shell is buckled to the base through the cooperation between the buckle block and the buckle groove.

9. The non-contact flow regulating device according to claim 1, characterized in that: The rotary driving member is a motor, and the output shaft of the motor is connected to the cam.

10. A flow regulating device comprising a plurality of non-contact flow regulating devices according to any one of claims 1 to 9, characterized in that: It also includes a mounting plate, and a plurality of the non-contact flow regulating devices are directly arrayed on the mounting plate along the left-right direction.

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