Baffle-type flow switch and mounting structure of sensing device of baffle-type flow switch

Abstract

The utility model provides a baffle type flow switch and a mounting structure of a sensing device thereof, belonging to the technical field of liquid flow control, comprising a pipe body, a support member and a sensing device, a flow channel is arranged in the pipe body, the flow channel is used for fluid flow, the support member is arranged on the outer wall of the pipe body, and the sensing device is arranged in the pipe body. The sensing device is arranged on the supporting piece; wherein the supporting piece is provided with a moving structure, the sensing device can move under the guide of the moving structure, and the moving structure is used for limiting the sensing device to move in the flowing direction of fluid. By means of the moving structure on the supporting piece, in the using process of the baffle type flow switch, the sensing device can move under limiting of the moving structure, so that the flow limiting value of the baffle type flow switch is adjusted, the sensing device is fixed to the outer portion of the pipe body through the supporting piece, and the position of the sensing device can be conveniently adjusted; and the adaptability and the practicability of the baffle type flow switch to an application site are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid flow control, and particularly relates to a baffle type flow switch and an installation structure of an induction device thereof. Background Art

[0002] As a control instrument, the baffle type flow switch can monitor the flow rate of the fluid flowing in the device. When the flow rate exceeds the flow limit value, the flow switch outputs a signal for control or alarm externally to achieve automatic control. When the fluid passes through the throttle hole of the installation structure of the induction device of the baffle type flow switch, a torque will be applied to the baffle to make the baffle rotate around the rotating shaft. A magnetic steel is arranged on the baffle, and the magnetic steel moves with the baffle. When the baffle rotates to the corresponding position, the induction device is triggered to output a signal, and after the control system receives the signal, the control of the size and the cut-off of the pipeline fluid can be realized.

[0003] Currently, for the installation structure of the induction device of the applied baffle type flow switch, the flow limit value has been set at the time of leaving the factory. If adjustment is required, protective components such as the housing of the induction device need to be opened, which will affect the original protection level of the induction device and bring inconvenience to the use of the baffle type flowmeter. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a baffle type flow switch and an installation structure of an induction device thereof, which are used to solve the problems such as the inconvenience of adjusting the flow limit value after the installation structure of the induction device of the baffle type flow switch leaves the factory.

[0005] To achieve the above purpose and other related purposes, the present utility model provides an installation structure of an induction device of a baffle type flow switch, including a pipe body, a support member, and an induction device. A flow channel is provided inside the pipe body for the fluid to flow. The support member is arranged on the outer wall of the pipe body, and the induction device is arranged on the support member. Wherein, the support member has a moving structure, and the induction device can move under the guidance of the moving structure. The moving structure is used to limit the movement of the induction device along the flow direction of the fluid.

[0006] Optionally, the moving structure of the support member is a sliding groove arranged along the flow direction of the fluid. The induction device has a sliding part accommodated in the sliding groove, and the support member limits the moving direction of the induction device through the sliding groove.

[0007] Optionally, the sliding groove has a groove bottom surface, and the sliding part has a close surface facing the groove bottom surface, and the close surface is in contact with the groove bottom surface.

[0008] Optionally, both sides of the opening of the sliding groove are provided with connecting parts, and the sensing device is detachably connected to the support member through the connecting parts.

[0009] Optionally, connecting holes are formed in the connecting parts of the sensing device, fixing holes corresponding to the connecting holes are provided on the sensing device, the sensing device is connected to the support member through fixing pieces, and the fixing pieces are arranged in the fixing holes and the corresponding connecting holes.

[0010] Optionally, each connecting part extends in a strip shape along the extending direction of the sliding groove, the connecting hole is a U-shaped hole arranged along the extending direction of the sliding groove, one connecting hole is arranged on each connecting part, and the two connecting holes are respectively arranged at the two ends of each connecting part along the extending direction of the sliding groove.

[0011] Optionally, an avoidance groove is arranged on the side of the connecting part facing the pipe body, the avoidance groove extends along the extending direction of the sliding groove, and the avoidance groove is used to increase the distance between the connecting part and the pipe body.

[0012] Optionally, the sensing device includes a sealing cover and a sealing housing, the sealing housing has a loading and unloading opening, the sealing cover is used to shield the loading and unloading opening and form an accommodating cavity with the sealing housing, the sealing housing is closer to the pipe body than the sealing cover, and the sealing housing is connected to the support member.

[0013] The present utility model provides a baffle type flow switch, which includes an in-pipe measurement component and an installation structure of the baffle type flow switch sensing device as described above. The in-pipe measurement component is arranged in a flow channel. The in-pipe measurement component includes a baffle, a magnetic steel arranged on the baffle, and a fixing plate. The fixing plate is fixed on the inner wall of the pipe body. The central axis of the fixing plate is arranged along the flowing direction of the fluid. A throttling hole is formed in the fixing plate. The baffle is rotatably arranged on the fixing plate corresponding to the throttling hole. At least part of the baffle shields the throttling hole, and the support member is arranged corresponding to the movement track of the magnetic steel.

[0014] Optionally, the baffle has a blocking surface for blocking the fluid from passing through and a back surface facing away from the blocking surface. A columnar limiting member is arranged on the back surface of the baffle, and the axial direction of the columnar limiting member is perpendicular to the plane where the fixing plate is located.

[0015] As described above, a baffle type flow switch of the present utility model and an installation structure of its sensing device have the following beneficial effects:

[0016] During the use of the baffle - type flow switch through the moving structure on the support, the sensing device can move under the limit of the moving structure, thereby adjusting the flow limit value of the baffle - type flow switch. The sensing device is fixed to the outside of the pipe body through the support, which facilitates the adjustment of the position of the sensing device and improves the adaptability and practicability of the baffle - type flow switch to the application site. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the baffle - type flow switch according to an embodiment of the present utility model.

[0018] Figure 2 It is a schematic cross - sectional view of the baffle of the baffle - type flow switch according to an embodiment of the present utility model when the baffle is in the initial position.

[0019] Figure 3 It is a schematic cross - sectional view of the baffle - type flow switch according to an embodiment of the present utility model when the baffle rotates.

[0020] Figure 4 It is a top view of the baffle of the baffle - type flow switch according to an embodiment of the present utility model.

[0021] Figure 5 It is a schematic structural diagram of the pipe body and the support according to an embodiment of the present utility model.

[0022] Reference numeral description: 1. Support; 11. Fixed hole; 12. Screw; 2. Sensing device; 21. Sealing cover; 22. Sealing housing; 3. Pipe body; 4. Columnar limiting member; 5. Rotating shaft; 6. Fixed plate; 7. Baffle; 8. Throttle hole; 9. Magnet; 10. Rotating shaft sleeve. Detailed Embodiment

[0023] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0024] Please refer to Figures 1 to 5It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the efficacy that the present utility model can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0025] In order to be able to describe the present utility model in detail, a specific description will be made next on the installation structure of a baffle - type flow switch and its sensing device of the present utility model:

[0026] Please refer to Figures 1 to 4 As shown, the present utility model provides an installation structure for a sensing device 2 of a baffle - type flow switch, which includes a pipe body 3, a support member 1, and a sensing device 2. There is a flow channel inside the pipe body 3 for fluid flow. The support member 1 is arranged on the outer wall of the pipe body 3, and the sensing device 2 is connected to the pipe body 3 through the support member 1. Among them, the support member 1 has a moving structure, and the moving structure is used to limit the movement of the sensing device 2 along the fluid flow direction. Through the moving structure on the support member 1, during the use of the baffle - type flow switch, the sensing device 2 can move under the limitation of the moving structure, thereby adjusting the flow limit value of the baffle - type flow switch. The sensing device 2 is fixed outside the pipe body 3 through the support member 1, which is convenient for adjusting the position of the sensing device 2 and improving the adaptability and practicability of the baffle - type flow switch to the application site.

[0027] Among them, the moving structure of the support member 1 is a sliding groove arranged along the fluid flow direction. The sensing device 2 has a sliding part accommodated in the sliding groove, and the support member 1 limits the moving direction of the sensing device 2 through the sliding groove. The sensing device 2 moves in the sliding groove through the sliding part, guiding the movement of the sensing device 2, and the above - mentioned structure is simple and easy to produce and manufacture.

[0028] Among them, the sliding groove has a groove bottom surface, and the sliding part has a close - fitting surface facing the groove bottom surface, and the close - fitting surface is in contact with the groove bottom surface. The close - fitting surface of the sliding part is in contact with the groove bottom surface, which can, under existing conditions, increase the space occupied by the sensing device 2 as much as possible, thereby increasing the internal space of the sensing device 2 and facilitating the reasonable configuration of the internal space of the sensing device 2. When there is a support member 1 between the sensing device 2 and the pipe body 3, the sensitivity of the sensing device 2 for sensing is improved.

[0029] Specifically, both sides of the sliding groove opening are provided with connecting parts, and the sensing device 2 is detachably connected to the support member 1 through the connecting parts. By detachably connecting the sensing device 2 and the support member 1, it is convenient to adjust the relative position between the sensing device 2 and the support member 1, thereby adjusting the flow limit value of the baffle type flow switch, and improving the adaptability and practicality of the baffle type flow switch to different application sites.

[0030] As Figure 5 shown, among them, connection holes are formed in the connecting parts of the sensing device 2, and fixing holes 11 corresponding to the connection holes are provided on the sensing device 2. The sensing device 2 is connected to the support member 1 through fixing parts, and the fixing parts are arranged in the fixing holes 11 and the corresponding connection holes. By inserting the fixing parts into the connection holes and the corresponding fixing holes 11, the sensing device 2 is connected to the support member 1. This connection structure is simple and easy to disassemble. In this embodiment, the fixing part is a screw 12. In some embodiments, the fixing part is a bolt. The type of the fixing part can be adjusted according to actual needs.

[0031] Specifically, each connecting part extends in a long strip shape along the extension direction of the sliding groove, the connection hole is a U-shaped hole arranged along the extension direction of the sliding groove, and one connection hole is provided on each connecting part. The two connection holes are respectively arranged at the different ends of each connecting part along the extension direction of the sliding groove. By providing the U-shaped holes, it is convenient for the operator to adjust the position of the sensing device 2 relative to the pipe body 3. By arranging the two U-shaped holes at the different ends of each connecting part, one installation point can be selected on the sensing device 2 respectively corresponding to each U-shaped hole, and the sensing device 2 is fixed to the support member 1. This operation is simple, convenient, and has a good fixing effect.

[0032] Specifically, an avoidance groove is provided on one side of the connecting part facing the pipe body 3, and the avoidance groove extends along the extension direction of the sliding groove. The avoidance groove is used to increase the distance between the connecting part and the pipe body 3. By providing the avoidance groove to increase the distance between the connecting part and the pipe body 3, it is convenient for the operator to operate when adjusting the position of the sensing device 2, and it can avoid the situation of difficult installation caused by the too close distance between the connecting part and the pipe body 3. In this embodiment, the support member 1 is formed by bending a flat plate. The structure of the support member 1 is simple, easy to manufacture, low in cost, and has good economic benefits.

[0033] Among them, the sensing device 2 includes a sealing cover 21 and a sealing housing 22. The sealing housing 22 has a loading and unloading opening. The sealing cover 21 is used to cover the loading and unloading opening and form a receiving cavity with the sealing housing 22. The sealing housing 22 is closer to the pipe body 3 than the sealing cover 21, and the sealing housing is connected to the support member 1. By arranging the sealing cover 21 at a position farther from the pipe body 3 than the sealing housing 22, when the sensing device 2 is connected to the support member 1, if it is necessary to repair the internal parts of the sensing device 2, the sealing cover 21 of the sensing device 2 can be directly disassembled, so as to repair its internal parts, without having to disassemble the outer shell of the sensing device 2 after disassembling the sensing device 2 from the support member 1, which improves the practicability of the sensing device 2.

[0034] As Figures 1 to 4 shown, the present utility model provides a baffle type flow switch, which includes an in-pipe measurement assembly and an installation structure of the baffle type flow switch sensing device 2 as described above. The in-pipe measurement assembly is arranged in the flow channel. The in-pipe measurement assembly includes a baffle 7, a magnetic steel 9 arranged on the baffle 7, and a fixing plate 6. The fixing plate 6 is fixed on the inner wall of the pipe body 3. The central axis of the fixing plate 6 is arranged along the flow direction of the fluid. A throttling hole 8 is formed on the fixing plate 6. The baffle 7 is rotatably arranged on the fixing plate 6 corresponding to the throttling hole 8. The baffle 7 at least partially shields the throttling hole 8. The support member 1 is arranged corresponding to the movement track of the magnetic steel 9. When the baffle 7 rotates under the push of the fluid, it will drive the magnetic steel 9 to move. When the magnetic steel 9 moves to a certain position, it will trigger the sensing device 2 to realize the control and cut-off of the fluid in the pipe body 3. In this embodiment, a rotating shaft sleeve 10 is arranged on the fixing plate 6, and a rotating shaft 5 is arranged in the rotating shaft sleeve 10. The baffle 7 is rotatably arranged on the fixing plate 6 through the rotating shaft 5.

[0035] Among them, the baffle 7 has a blocking surface for blocking the fluid from passing through and a back surface opposite to the blocking surface. A columnar limiting member 4 is arranged on the back surface of the baffle 7. The axial direction of the columnar limiting member 4 is perpendicular to the plane where the fixing plate 6 is located. One end of the columnar limiting member 4 is connected to the baffle 7, and the other end of the columnar limiting member 4 limits the movement track of the baffle 7 by abutting against the inner wall of the pipe body 3 during the movement of the baffle 7, so that the baffle 7 can return to the initial position after rotation. It can be understood that the initial position of the baffle 7 is the position where the throttling hole 8 is shielded.

[0036] To sum up, through the moving structure on the support member 1, during the use of the baffle type flow switch, the sensing device 2 can move under the limitation of the moving structure, so as to adjust the flow limit value of the baffle type flow switch. The sensing device 2 is fixed outside the pipe body 3 through the support member 1, which is convenient for adjusting the position of the sensing device 2 and improves the adaptability and practicability of the baffle type flow switch to the application site.

[0037] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can make modifications or changes to the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. An installation structure of a baffle type flow switch induction device, characterized in that, It includes a pipe body, a support member, and an induction device. A flow channel is provided inside the pipe body for fluid flow. The support member is disposed on the outer wall of the pipe body, and the induction device is arranged on the support member. Among them, the support member has a moving structure, and the induction device can move under the guidance of the moving structure. The moving structure is used to limit the movement of the induction device along the fluid flow direction.

2. The installation structure of the baffle type flow switch induction device according to claim 1, characterized in that: The moving structure of the support member is a sliding groove arranged along the fluid flow direction. The induction device has a sliding part accommodated in the sliding groove, and the support member limits the moving direction of the induction device through the sliding groove.

3. The installation structure of the baffle type flow switch induction device according to claim 2, characterized in that: The sliding groove has a groove bottom surface, and the sliding part has a close surface facing the groove bottom surface, and the close surface is in contact with the groove bottom surface.

4. The installation structure of the baffle type flow switch induction device according to claim 2, characterized in that: Both sides of the opening of the sliding groove have connecting parts, and the induction device is detachably connected to the support member through the connecting parts.

5. The installation structure of the baffle type flow switch induction device according to claim 3, characterized in that: Connecting holes are formed in the connecting parts of the induction device, and fixing holes corresponding to the connecting holes are provided on the induction device. The induction device is connected to the support member through fixing pieces, and the fixing pieces are arranged in the fixing holes and the corresponding connecting holes.

6. The installation structure of the baffle type flow switch induction device according to claim 5, characterized in that: Each of the connecting parts extends in a long strip shape along the extension direction of the sliding groove. The connecting hole is a U-shaped hole arranged along the extension direction of the sliding groove. One connecting hole is provided on each of the connecting parts, and the two connecting holes are respectively arranged at the two ends of each connecting part along the extension direction of the sliding groove.

7. The installation structure of the baffle type flow switch induction device according to claim 6, characterized in that: An avoidance groove is arranged on the side of the connecting part facing the pipe body. The avoidance groove extends along the extension direction of the sliding groove, and the avoidance groove is used to increase the distance between the connecting part and the pipe body.

8. The installation structure of the baffle type flow switch induction device according to any one of claims 1-5, characterized in that: The induction device includes a sealing cover and a sealing housing. The sealing housing has a loading and unloading opening, and the sealing cover is used to cover the loading and unloading opening and form a containing cavity with the sealing housing. The sealing housing is closer to the pipe body than the sealing cover, and the sealing housing is connected to the support member.

9. A baffle type flow switch, characterized in that, It includes an in-pipe measuring component and an installation structure of the baffle type flow switch induction device according to any one of claims 1-8. The in-pipe measuring component is arranged in the flow channel. The in-pipe measuring component includes a baffle, a magnetic steel arranged on the baffle, and a fixing plate. The fixing plate is fixed on the inner wall of the pipe body. The central axis of the fixing plate is arranged along the fluid flow direction. A throttle hole is formed in the fixing plate. The baffle is rotatably arranged on the fixing plate corresponding to the throttle hole. The baffle at least partially shields the throttle hole, and the support member is arranged corresponding to the movement track of the magnetic steel.

10. The baffle type flow switch according to claim 9, wherein: The baffle has a blocking surface for blocking fluid passage and a back surface facing away from the blocking surface. A columnar limiting member is arranged on the back surface of the baffle, and the axial direction of the columnar limiting member is perpendicular to the plane where the fixing plate is located.

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