A new target flow switch

Abstract

The utility model relates to flow monitoring technical field, and disclose a novel target type flow switch, include: base, upper casing, lower casing, target piece, support and small microswitch, still include: adjusting assembly, limiting component, protection component and sealing assembly, the utility model discloses through adjusting assembly, can change the position between adjusting screw and adjusting indicating ring, and further change the elasticity of compression spring, to change the contact intensity between lever and small microswitch, and the water flow impact force of different intensity is suitable, and can directly replace compression spring, can be more flexible with other equipment integration and debugging, need not have professional technical knowledge or use complex tool, can according to the actual situation of the field fast adjustment switch's measurement intensity, through limiting component, can carry out certain protection to small microswitch, and protection component can prevent target piece to occur rigid bending, prolongs target piece life, and the sealing is stronger, reduces the rust phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of flow monitoring technology, specifically a novel target-type flow switch. Background Technology

[0002] A target-type flow switch is a flow monitoring and control device designed based on the principles of fluid dynamics. It senses the flow rate by detecting changes in the impact force of the fluid on the target plate and triggers a switching signal when the flow rate reaches a set threshold.

[0003] Traditional target-type flow switches operate based on a fixed physical relationship between the force applied to the target and the fluid velocity. They lack adjustable mechanical components to change the correspondence between the force applied to the target and the output signal. Once the fluid characteristics or installation environment change, users cannot dynamically adjust the measurement intensity of the switch and can only passively accept the predetermined measurement threshold and response characteristics, which affects the measurement accuracy and reliability.

[0004] To address this, a novel target-type flow switch is proposed. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given the lack of adjustable mechanical components in the existing technology to change the correspondence between the force on the target and the output signal,

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel target-type flow switch includes: a base, an upper housing, a lower housing, a target plate, a bracket, and a micro switch; the base is fixedly disposed at the bottom of the lower housing, the upper housing and the lower housing are fixedly connected by bolts, and the upper housing and the lower housing form a complete sealed housing; the target plate is located below the base; the bracket is fixedly installed in the cavity formed by the lower housing and the upper housing by bolts; the micro switch is fixedly installed on the bracket; and further includes:

[0009] The system includes an adjustment component, a limiting component, a protection component, and a sealing component. The adjustment component and the limiting component are both mounted on the bracket and are positioned opposite each other. The protection component is located below the base and is used for connecting and protecting the target piece. The sealing component is located between the upper housing and the lower housing.

[0010] As a further embodiment of this utility model: the adjustment assembly includes an adjustment groove, a lever, an adjustment indicator ring, a compression spring, an adjustment screw, and a limit clip. The adjustment groove is located at the top of the bracket, the lever is located in the adjustment groove, and one end of the lever is in contact with the switch of a micro switch. The adjustment indicator ring is located inside the adjustment groove, and one end of the adjustment indicator ring slides in a hole on one side of the bracket. The compression spring is sleeved between the lever and the adjustment indicator ring. The threaded end of the adjustment screw is threadedly connected to the adjustment indicator ring. The limit clip is fixed to the bracket by bolts to fix the position of the adjustment screw.

[0011] As a further embodiment of this utility model: the protective component includes a target rod and a target plate limiter. The target rod is fixedly installed between the lever and the holes that pass through the base, the lower bottom shell and the upper bottom shell in sequence. The holes are larger than the diameter of the target rod. The target plate limiter is installed on one side of the bottom of the target rod by bolts. The target plate is fixed to the target rod and the target plate limiter by the target plate.

[0012] As a further embodiment of this utility model: the sealing assembly includes a sealing groove and a sealing ring, the sealing groove is formed at the connection end face between the upper housing and the lower housing, and the sealing ring is interference-filled in the sealing groove.

[0013] As a further improvement of this utility model, a 3P terminal block is installed on the bracket by bolts.

[0014] As a further improvement of this utility model: a gland head is installed on one side of the lower housing, and a flow direction indicator is provided on the outer side of the lower housing.

[0015] As a further improvement of this utility model, the bottom of both the target rod and the target plate limiting part are made with a rounded transition.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model can change the position between the adjusting screw and the adjusting indicator ring by adjusting the component, thereby changing the elastic force of the compression spring, and thus changing the contact strength between the lever and the micro switch. It is suitable for water flow impact forces of different intensities. The compression spring can be directly replaced, and it can be more flexibly integrated and debugged with other equipment. No professional technical knowledge or complex tools are required, and the measurement intensity of the switch can be quickly adjusted according to the actual situation on site.

[0018] 2. This utility model uses a limiting component to prevent the lever from causing excessive impact on the micro switch under the push of the compression spring, which can protect the micro switch to a certain extent and extend its service life. In addition, the protection component can prevent the target from rigidly bending, extend the target's life, and increase the accuracy of the test. The device has stronger sealing performance and uses plastic material inside to reduce corrosion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a novel target-type flow switch structure;

[0020] Figure 2 This is the second schematic diagram of a novel target-type flow switch structure.

[0021] Figure 3 A partial structural diagram of a novel target-type flow switch regulating component;

[0022] Figure 4 A schematic diagram of a novel target-type flow switch regulating component;

[0023] Figure 5 This is a detailed structural diagram of a novel target-type flow switch regulating component.

[0024] In the diagram: 1. Base; 2. Upper housing; 3. Lower housing; 4. Target plate; 5. Bracket; 6. Micro switch; 7. Adjustment assembly; 8. Limit assembly; 9. Protection assembly; 10. Sealing assembly; 71. Adjustment groove; 72. Lever; 73. Adjustment indicator ring; 74. Compression spring; 75. Adjustment screw; 76. Limiting clip; 91. Target rod; 92. Target plate limit; 101. Sealing groove; 102. Sealing ring; 11. 3P terminal block; 12. Gland. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0028] Example 1:

[0029] Please see Figure 1 - Figure 5 This is the first embodiment of the present invention.

[0030] This embodiment provides a novel target-type flow switch, including: a base 1, an upper housing 2, a lower housing 3, a target plate 4, a bracket 5, and a micro switch 6; the base 1 is fixedly disposed at the bottom of the lower housing 3, the upper housing 2 and the lower housing 3 are fixedly connected by bolts, and the upper housing 2 and the lower housing 3 form a complete sealed housing, the target plate 4 is located below the base 1, the bracket 5 is fixedly installed in the cavity formed by the lower housing 3 and the upper housing 2 by bolts, and the micro switch 6 is fixedly installed on the bracket 5, and also includes:

[0031] Adjustment component 7, limiting component 8, protection component 9 and sealing component 10; adjustment component 7 and limiting component 8 are both set on bracket 5 and are set opposite to each other, protection component 9 is set below base 1 and is used for connection and protection of target plate 4, and sealing component 10 is set between upper shell 2 and lower shell 3.

[0032] For example, the adjustment component 7 allows for more flexible integration and debugging with other devices, the limit component 8 provides some protection for the micro switch 6 and extends its service life, and the protection component 9 can prevent the target plate 4 from rigidly bending, extending the life of the target plate 4 and increasing the accuracy of the test. The device has stronger sealing performance and uses plastic material inside to reduce corrosion.

[0033] Furthermore, the adjustment assembly 7 includes an adjustment groove 71, a lever 72, an adjustment indicator ring 73, a compression spring 74, an adjustment screw 75, and a limit clip 76. The adjustment groove 71 is located on the top of the bracket 5. The lever 72 is located in the adjustment groove 71, and one end of the lever 72 is in contact with the switch of the micro switch 6. The adjustment indicator ring 73 is located inside the adjustment groove 71, and one end of the adjustment indicator ring 73 slides in a hole on one side of the bracket 5. The compression spring 74 is sleeved between the lever 72 and the adjustment indicator ring 73. The threaded end of the adjustment screw 75 is threadedly connected to the adjustment indicator ring 73. The limit clip 76 is fixed to the bracket 5 by bolts to fix the position of the adjustment screw 75.

[0034] For example, in actual use, after the flow switch installation direction indicator is installed on the tee, the water flow in the water pipe impacts the target plate 4, which then drives the lever 72 to move. Since the lever 72 is initially in pressure contact with the micro switch 6, when the water flow impact force is too large, the target plate 4 will cause one end of the lever 72 to disengage from the micro switch 6, thereby monitoring the water flow rate.

[0035] When the monitoring threshold changes, simply change the position between the adjusting screw 75 and the adjusting indicator ring 73 to change the elasticity of the compression spring 74, or directly replace the compression spring 74 to change the contact strength between the lever 72 and the micro switch 6. The adjusting position can be observed on one side of the adjusting indicator ring 73. It is suitable for water flow impact forces of different intensities. No professional technical knowledge or complex tools are required to quickly adjust the measurement intensity of the switch according to the actual situation on site.

[0036] Example 2:

[0037] Please see Figure 1 - Figure 5 This is the second embodiment of the present utility model.

[0038] For example, the protection component 9 includes a target rod 91 and a target plate limiter 92. The target rod 91 is fixedly installed between the lever 72 and the holes that pass through the base 1, the lower bottom shell and the upper bottom shell in sequence. The holes are larger than the diameter of the target rod 91. The target plate limiter 92 is installed on the bottom side of the target rod 91 by bolts. The target plate 4 is fixed by the target rod 91 and the target plate limiter 92. The bottom of both the target rod 91 and the target plate limiter 92 are rounded.

[0039] Furthermore, the target piece 4 is fixed by the target rod 91 and the target piece limiter 92. The target rod 91 acts as a medium between the target piece 4 and the lever 72, transmitting the force of the target piece 4 to the lever 72. The bottom of both the target rod 91 and the target piece limiter 92 are rounded to guide the bending of the target piece 4, prevent the target piece 4 from being damaged by bending, and extend the service life of the target piece 4.

[0040] For example, the sealing assembly 10 includes a sealing groove 101 and a sealing ring 102. The sealing groove 101 is formed at the connection end face between the upper housing 2 and the lower housing 3. The sealing ring 102 is interference-filled in the sealing groove 101. The internal support 5 is made of plastic.

[0041] Furthermore, compared to metal parts, plastic has poorer thermal conductivity, making it less likely for condensation to form inside the upper housing 2 and lower housing 3. At the same time, the device has stronger sealing properties, further preventing the intrusion of moisture.

[0042] For example, a 3P terminal block 11 is bolted onto the bracket 5, a gland 12 is mounted on one side of the lower housing 3, and a flow direction indicator is provided on the outer side of the lower housing 3.

[0043] Furthermore, through the gland 12 and the 3P terminal block 11, the wire harness can be directly installed on the 3P terminal block 11 with a screwdriver after entering through the gland 12, making it convenient and quick to install the wire harness.

[0044] The device features better integration of microswitches, target rods, push rods, springs, adjusting screws, and terminals, resulting in a more compact overall structure and a smaller size compared to existing devices.

[0045] Meanwhile, the base 1 and the lower housing 3 are sealed with a gasket and a diaphragm. The sealing strip between the upper housing 2 and the lower housing 3 is inserted into the connection gap between the two, which has a higher protection level and stronger sealing performance, and can prevent moisture intrusion.

[0046] Working principle: In the initial state, lever 72 is in pressure contact with micro switch 6. The flow switch installation direction is installed on the tee, and the wiring harness enters through gland 12 and is directly installed on 3P terminal 11 with a screwdriver. The sealing ring 102 is interference-filled in the sealing groove 101. The internal bracket 5 is made of plastic to prevent moisture intrusion and to prevent condensation from forming inside the upper housing 2 and lower housing 3. The water flow in the water pipe impacts the target plate 4. The target rod 91 acts as a medium between the target plate 4 and lever 72, transmitting the force of the target plate 4 to the lever 72. When the water flow impact force is too large, it will cause one end of lever 72 to disengage from micro switch 6 through the target plate 4. When the impact force decreases, lever 72 resets and presses against micro switch 6 again, thereby monitoring the water flow rate.

[0047] When the monitoring threshold changes, simply change the position between the adjusting screw 75 and the adjusting indicator ring 73 to change the elastic force of the compression spring 74, or directly replace the compression spring 74 to change the contact strength between the lever 72 and the micro switch 6. This allows for the adjustment of the switch's measurement intensity based on the actual situation on site, without the need for professional technical knowledge or complex tools.

[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0050] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel target-type flow switch, characterized in that: include: The system comprises a base (1), an upper housing (2), a lower housing (3), a target plate (4), a bracket (5), and a micro switch (6); the base (1) is fixedly disposed at the bottom of the lower housing (3), the upper housing (2) and the lower housing (3) are fixedly connected by bolts, and the upper housing (2) and the lower housing (3) form a complete sealed housing, the target plate (4) is located below the base (1), the bracket (5) is fixedly installed in the cavity formed by the lower housing (3) and the upper housing (2) by bolts, and the micro switch (6) is fixedly installed on the bracket (5). The system also includes: Adjustment component (7), limiting component (8), protection component (9) and sealing component (10); the adjustment component (7) and the limiting component (8) are both set on the bracket (5) and are arranged opposite to each other. The protection component (9) is set below the base (1) and is used for the connection and protection of the target piece (4). The sealing component (10) is set between the upper shell (2) and the lower shell (3).

2. The novel target-type flow switch according to claim 1, characterized in that: The adjustment assembly (7) includes an adjustment groove (71), a lever (72), an adjustment indicator ring (73), a compression spring (74), an adjustment screw (75), and a limit card (76). The adjustment groove (71) is located on the top of the bracket (5). The lever (72) is located in the adjustment groove (71), and one end of the lever (72) is in contact with the switch of the micro switch (6). The adjustment indicator ring (73) is located inside the adjustment groove (71), and one end of the adjustment indicator ring (73) slides in a hole on one side of the bracket (5). The compression spring (74) is sleeved between the lever (72) and the adjustment indicator ring (73). The threaded end of the adjustment screw (75) is threadedly connected to the adjustment indicator ring (73). The limit card (76) is fixed to the bracket (5) by bolts to fix the position of the adjustment screw (75).

3. A novel target-type flow switch according to claim 2, characterized in that: The protective component (9) includes a target rod (91) and a target plate limiter (92). The target rod (91) is fixedly installed between the base (1), the lower bottom shell and the upper bottom shell through the holes and the lever (72). The holes are larger than the diameter of the target rod (91). The target plate limiter (92) is installed on the bottom side of the target rod (91) by bolts. The target plate (4) is fixed to the target plate limiter (92) by the target rod (91).

4. A novel target-type flow switch according to claim 1, characterized in that: The sealing assembly (10) includes a sealing groove (101) and a sealing ring (102). The sealing groove (101) is formed on the connection end face between the upper housing (2) and the lower housing (3). The sealing ring (102) is interference-filled in the sealing groove (101).

5. A novel target-type flow switch according to claim 1, characterized in that: A 3P terminal block (11) is bolted onto the bracket (5).

6. A novel target-type flow switch according to claim 1, characterized in that: A gland head (12) is installed on one side of the lower housing (3), and a flow direction indicator is provided on the outer side of the lower housing (3).

7. A novel target-type flow switch according to claim 3, characterized in that: The bottom of both the target rod (91) and the target plate limiter (92) are rounded.

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