CN221258057U

CN221258057U - Fool-proof flow switch

Info

Publication number: CN221258057U
Application number: CN202322700877.9U
Authority: CN
Inventors: 兰昱旻
Original assignee: Aleph Electronics Shenzhen Co ltd
Current assignee: Aleph Electronics Shenzhen Co ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-07-02
Anticipated expiration: 2033-10-09

Abstract

The utility model discloses a foolproof flow switch, and relates to the technical field of flow switches. The fool-proof flow switch comprises a flow switch body and a fool-proof clamping ring. The fool-proof snap ring is arranged on the flow switch body, and a first connecting part which is asymmetric along the circumferential direction of the fool-proof snap ring is correspondingly arranged on the fool-proof snap ring; the fool-proof flow switch is detachably arranged on the pipeline, a connector is arranged on the pipeline, a first end of the connector is communicated with the side wall of the pipeline, and a second connecting part is arranged on the end face of a second end of the connector; the first connecting part can be matched with the second connecting part so that the flow switch body is connected with the circumference of the connector at a preset angle. The fool-proof flow switch solves the problem that the flow switch is easy to be connected with a pipeline in the prior art and cannot be used normally, and is convenient to install with the pipeline, and high in reliability.

Description

Fool-proof flow switch

Technical Field

The utility model relates to the technical field of flow switches, in particular to a foolproof flow switch.

Background

The flow switch is mainly used for monitoring the water flow in the water system in an on-line or plug-in mode in a water, gas, oil and other medium pipeline. The mechanical flow switch features that the sensing element (such as reed or valve core) is inserted into the pipeline of hydraulic system, and when the liquid in the pipeline flows, the flowing liquid impacts the sensing element to make the sensing element produce certain displacement and trigger the electric element to send out signal.

In the prior art, the phenomenon that the pipeline is connected with the flow switch in error is avoided by arranging the mark on the pipeline, but because the space where the pipeline is located is smaller, the size of the mark is usually smaller, workers need to carefully check the mark, the error connection between the flow switch and the pipeline can be avoided, and the flow switch and the pipeline are more difficult to be connected correctly, so that the reliability is lower. Meanwhile, the mode that the mark is arranged on the pipeline is unreliable, the service life of the mark is short, the use environment has larger limitation, and the mark cannot be used in the environment with high temperature and chemical corrosion.

Disclosure of utility model

The utility model aims to provide a fool-proof flow switch, which solves the problem that the flow switch is easy to be connected with a pipeline and cannot be used normally in the prior art, so that the flow switch and the pipeline are convenient to install and have high reliability.

To achieve the purpose, the utility model adopts the following technical scheme:

A foolproof flow switch comprising:

a flow switch body;

The fool-proof snap ring is arranged on the flow switch body, and a first connecting part which is asymmetric along the circumferential direction of the fool-proof snap ring is correspondingly arranged on the fool-proof snap ring;

The fool-proof flow switch is detachably arranged on a pipeline, a connector is arranged on the pipeline, a first end of the connector is communicated with the side wall of the pipeline, and a second connecting part is arranged on the end face of a second end of the connector;

The first connecting part can be matched with the second connecting part, so that the flow switch body is connected with the circumference of the connector at a preset angle.

As a preferable technical scheme of the fool-proof flow switch, one of the first connecting part and the second connecting part comprises a first bump, and the other one comprises a first connecting groove, and the first bump can be inserted into the first connecting groove.

As a preferable technical scheme of the fool-proof flow switch, the flow switch body further comprises a shell, and the fool-proof snap ring is detachably connected with the shell; be provided with on the lateral wall of preventing slow-witted snap ring along prevent slow-witted snap ring's circumference asymmetric third connecting portion, be provided with fourth connecting portion on the inside wall of the first end of shell corresponds, fourth connecting portion can with third connecting portion cooperation, so that prevent slow-witted snap ring for the circumference of shell is with predetermineeing the angle and connect.

As a preferable technical scheme of the fool-proof flow switch, one of the third connecting part and the fourth connecting part comprises a second bump, and the other one comprises a second connecting groove, and the second bump can be inserted into the second connecting groove.

As a fool-proof flow switch, one of the outer wall of the fool-proof snap ring and the inner wall of the first end of the shell is provided with a buckle, and the other is provided with a clamping groove, and the buckle can be clamped in the clamping groove.

As a foolproof flow switch's preferred technical scheme, the flow switch body still includes target pole and target pole mounting, the target pole mounting cover is located the target pole, the target pole mounting set up in the inner wall of shell, so that the first end of target pole set up in the shell, the second end of target pole set up in the pipeline, the first end of target pole is provided with first magnetic part, the both sides of shell are provided with the second magnetic part respectively, the target pole can for the target pole mounting swing, so that first magnetic part selectivity attracts with the second magnetic part.

As a preferable technical scheme of the fool-proof flow switch, a connecting column perpendicular to the axis of the target rod is arranged on the side wall of the target rod, a fixing hole is arranged on the side wall of the target rod fixing piece, and the connecting column is rotationally inserted into the fixing hole.

As a foolproof flow switch's preferred technical scheme, the flow switch body still includes the installation sleeve, the installation sleeve cover is located the shell, the installation sleeve is close to the both sides of shell are provided with two holding tanks respectively, the second magnetic part one-to-one set up respectively in the holding tank.

As a fool-proof flow switch, one of the end face of the first end of the shell and the end face of the first end of the connector is provided with an annular mounting groove, and a sealing ring is arranged in the mounting groove so as to be in sealing connection with the end face of the first end of the shell and the end face of the first end of the connector.

As a foolproof flow switch's preferred technical scheme, foolproof flow switch still includes the connecting piece, the connecting piece cover is located the outside of flow switch body, and with the second end threaded connection of connector is in order to follow the axial fixity flow switch body with the connector.

The utility model has the beneficial effects that:

The fool-proof flow switch comprises a flow switch body and the fool-proof snap ring, wherein the first connecting part on the fool-proof snap ring is asymmetrically arranged along the circumference of the fool-proof snap ring, when the first connecting part and the second connecting part are matched and installed, the flow switch body can be connected only when a preset angle is formed between the circumference of the flow switch body and the circumference of the connector, and the preset angle can ensure that the water flow in the pipeline can be monitored when the fool-proof flow switch is installed on the pipeline, so that the fool-proof flow switch solves the problem that the fool-proof flow switch is easy to be connected with the pipeline and cannot be normally used in the prior art, and when the fool-proof flow switch is connected with the pipeline, the check mark is not needed, and the fool-proof flow switch is especially suitable for installation in a small space; meanwhile, the installation is more convenient, and the reliability is high; in addition, the requirements on the installation environment are smaller, and the use scene is wider.

Drawings

FIG. 1 is a schematic diagram of the structure of the fool-proof flow switch and the pipeline connection of the utility model;

FIG. 2 is an exploded view of the flow switch of the present utility model;

FIG. 3 is a cross-sectional view of the fool-proof flow switch of the present utility model connected to a pipeline;

FIG. 4 is an exploded view of the fool-proof collar and tubing of the present utility model;

fig. 5 is a schematic structural view of the housing of the present utility model.

In the figure:

1. A flow switch body; 11. fool-proof snap ring; 111. a first bump; 112. a second bump; 113. a buckle; 12. a housing; 121. a second connecting groove; 122. a clamping groove; 13. a target rod; 131. a connecting column; 14. a target rod fixing member; 141. a fixing hole; 15. a mounting sleeve; 151. a receiving groove;

2. a pipeline; 21. a connector; 211. a first connection groove; 212. a mounting groove;

3. A connecting piece;

4. and (3) sealing rings.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present embodiment provides a fool-proof flow switch including a flow switch body 1 and a fool-proof snap ring 11. The fool-proof snap ring 11 is arranged on the flow switch body 1, and a first connecting part which is asymmetric along the circumferential direction of the fool-proof snap ring 11 is correspondingly arranged on the fool-proof snap ring 11; the fool-proof flow switch is detachably arranged on the pipeline 2, a connector 21 is arranged on the pipeline 2, a first end of the connector 21 is communicated with the side wall of the pipeline 2, and a second connecting part is arranged on the end face of a second end of the connector 21; the first connecting portion can be matched with the second connecting portion, so that the flow switch body 1 is connected at a preset angle relative to the circumferential direction of the connector 21. Because the first connecting part on the fool-proof snap ring 11 is asymmetrically arranged along the circumferential direction of the fool-proof snap ring 11, when the first connecting part and the second connecting part are matched and installed, the first connecting part and the second connecting part can be connected only by a preset angle relative to the circumferential direction of the connector 21, and the preset angle can ensure that the water flow in the pipeline 2 can be monitored when the fool-proof flow switch is installed in the pipeline 2, therefore, the fool-proof flow switch solves the problem that the fool-proof flow switch is easy to be connected with the pipeline 2 in the prior art and cannot be normally used due to connection errors, so that when the fool-proof flow switch is connected with the pipeline 2, the check mark is not needed, and the fool-proof flow switch is especially suitable for installation in a small space; meanwhile, the installation is more convenient, and the reliability is high; in addition, the requirements on the installation environment are smaller, and the use scene is wider.

As shown in fig. 4, in the present embodiment, one of the first connection portion and the second connection portion includes a first bump 111, and the other includes a first connection groove 211, and the first bump 111 can be inserted into the first connection groove 211. In this embodiment, the first connection portion includes the first bump 111, and the second connection portion includes the first connection groove 211, and when in use, the first bump 111 is inserted into the first connection groove 211, so that the flow switch body 1 can be connected at a preset angle with respect to the circumferential direction of the connector 21. Illustratively, the first connecting groove 211 is provided as an arc-shaped opening along the circumferential direction of the connecting head 21, and accordingly, the first projection 111 is provided as an arc-shaped projection that can be placed in the arc-shaped opening. Of course, in other embodiments, the second connection portion may also include the first bump 111, and the first connection portion includes the first connection groove 211.

As shown in fig. 1 and 2, it should be noted that the fool-proof snap ring 11 may be integrally disposed with the flow switch body 1, and at this time, only a certain installation angle between the fool-proof snap ring 11 and the pipeline 2 is required. In this embodiment, the flow switch body 1 further includes a housing 12, and the fool-proof snap ring 11 is detachably connected with the housing 12, and at this time, a certain installation angle between the fool-proof snap ring 11 and the housing 12 is required to be ensured. Therefore, the outer side wall of the fool-proof snap ring 11 is provided with a third connecting portion asymmetric along the circumferential direction of the fool-proof snap ring 11, the inner side wall of the first end of the housing 12 is provided with a fourth connecting portion, and the fourth connecting portion can be matched with the third connecting portion so that the fool-proof snap ring 11 is connected at a preset angle relative to the circumferential direction of the housing 12. When the anti-fool clamp ring is used, the third connecting part on the anti-fool clamp ring 11 is connected with the fourth connecting part on the shell 12, so that the anti-fool clamp ring 11 can be connected at a preset angle relative to the circumference of the shell 12.

As shown in fig. 4 and 5, further, one of the third connection part and the fourth connection part includes a second bump 112, and the other includes a second connection groove 121, and the second bump 112 can be inserted into the second connection groove 121. In this embodiment, the third connection portion includes a second bump 112, and the fourth connection portion includes a second connection groove 121. It will be appreciated that the second protruding block 112 and the second connecting groove 121 extend along the axial direction of the housing 12, so that, in use, the fool-proof snap ring 11 can be inserted into the housing 12 along the axial direction, and then the second protruding block 112 on the fool-proof snap ring 11 is inserted into the second connecting groove 121 on the housing 12, so as to realize connection of the fool-proof snap ring 11 at a preset angle with respect to the circumferential direction of the housing 12. Of course, in other embodiments, the third connection portion may include the second connection groove 121, and the fourth connection portion may include the second bump 112.

As shown in fig. 4 and 5, further, the second bump 112 and the second connection groove 121 are each provided in plurality. In this embodiment, the second protruding blocks 112 and the second connecting grooves 121 are all provided with three, so that after the fool-proof snap ring 11 is connected with the housing 12, the stress between the fool-proof snap ring 11 and the housing 12 is more uniform.

Further, one of the outer wall of the fool-proof snap ring 11 and the inner wall of the first end of the shell 12 is provided with a buckle 113, the other is provided with a clamping groove 122, and the buckle 113 can be clamped in the clamping groove 122, so that the fool-proof snap ring 11 and the shell 12 are connected in advance. Through setting up buckle 113 and draw-in groove 122 for can be at first with prevent slow-witted snap ring 11 and shell 12 with predetermineeing the angle and install in advance, will prevent slow-witted snap ring 11 and shell 12 to be connected and form an entity, then be connected this entity with pipeline 2 again, make the installation more convenient.

In this embodiment, the outer wall of the fool-proof snap ring 11 is provided with the buckle 113, the inner wall of the first end of the housing 12 is provided with the clamping groove 122, and when in use, the second protrusion 112 on the fool-proof snap ring 11 is inserted into the second connecting groove 121 on the housing 12, and meanwhile, the buckle 113 on the outer wall of the fool-proof snap ring 11 is inserted into the clamping groove 122 on the inner wall of the first end of the housing 12, so as to realize the pre-connection between the fool-proof snap ring 11 and the housing 12. Of course, in other embodiments, the outer wall of the fool-proof snap ring 11 may be provided with a clamping groove 122, and the inner wall of the first end of the housing 12 may be provided with a buckle 113.

As shown in fig. 2 and 3, in this embodiment, the flow switch body 1 further includes a target rod 13 and a target rod fixing member 14, the target rod fixing member 14 is sleeved on the target rod 13, the target rod fixing member 14 is disposed on the inner wall of the housing 12, so that a first end of the target rod 13 is disposed in the housing 12, a second end of the target rod 13 is disposed in the pipeline 2, a first magnetic member is disposed at the first end of the target rod 13, second magnetic members are disposed on two sides of the housing 12 respectively, and the target rod 13 can swing relative to the target rod fixing member 14, so that the first magnetic member is selectively attracted to the second magnetic member. In the initial state, the first magnetic part at the first end of the target rod 13 of the flow switch body 1 is attracted to one of the second magnetic parts, and when the flow switch is in use, liquid in the pipeline 2 can impact the target rod 13, and the target rod 13 swings to a position perpendicular to the movement direction of the liquid in the pipeline 2 under the impact force of the liquid in the pipeline 2. Therefore, the flow switch body 1 must be connected at a predetermined angle with respect to the circumferential direction of the connector 21, and the target 13 cannot swing, and is disabled. In this embodiment, the first magnetic member and the second magnetic member are both magnets.

Further, a connecting post 131 perpendicular to the axis of the target 13 is provided on the side wall of the target 13, a fixing hole 141 is provided on the side wall of the target fixing member 14, and the connecting post 131 is inserted into the fixing hole 141 to realize the swinging of the target 13 relative to the target fixing member 14. It will be appreciated that the axis of the connecting post 131 is not only perpendicular to the axis of the target rod 13, but also perpendicular to the axis of the conduit 2.

Further, in order to realize the installation of the second magnetic element, the flow switch body 1 further comprises a mounting sleeve 15, the mounting sleeve 15 is sleeved on the housing 12, two accommodating grooves 151 are respectively formed in one side, close to the housing 12, of the mounting sleeve 15, and the second magnetic elements are arranged in the accommodating grooves 151 in a one-to-one correspondence manner.

Further, the fool-proof flow switch further comprises a connecting piece 3, wherein the connecting piece 3 is sleeved on the outer side of the flow switch body 1 and is in threaded connection with the second end of the connector 21 so as to axially fix the flow switch body 1 and the connector 21. When in use, the connecting piece 3 is sleeved outside the shell 12, the shell 12 is abutted with the connector 21, the connecting piece 3 is in threaded connection with the connector 21, the shell 12 and the connector 21 are axially fixed, and the connection between the shell 12 and the pipeline 2 is realized. At this time, the fool-proof snap ring 11 is clamped between the casing 12 and the connector 21, and due to the arrangement of the first connecting portion and the second connecting portion, and the third connecting portion and the fourth connecting portion, the fool-proof flow switch can be installed on the pipeline 2 at a normal use angle, and the connecting piece 3 realizes the axial fixation of the flow switch body 1 and the pipeline 2, so that the connection reliability between the fool-proof flow switch and the pipeline 2 is ensured.

As shown in fig. 4, in this embodiment, one of the end face of the first end of the housing 12 and the end face of the first end of the connector 21 is provided with an annular mounting groove 212, and a sealing ring 4 is disposed in the mounting groove 212 to seal the end face of the first end of the housing 12 and the end face of the first end of the connector 21, so as to perform a sealing function, and effectively avoid overflow of the liquid in the pipeline 2 at the joint of the connector 21 and the housing 12.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A fool-proof flow switch, comprising:

a flow switch body (1);

The fool-proof snap ring (11) is arranged on the flow switch body (1), and first connecting parts which are asymmetric along the circumferential direction of the fool-proof snap ring (11) are correspondingly arranged on the fool-proof snap ring (11);

The fool-proof flow switch is detachably arranged on the pipeline (2), a connector (21) is arranged on the pipeline (2), a first end of the connector (21) is communicated with the side wall of the pipeline (2), and a second connecting part is arranged on the end face of a second end of the connector (21);

The first connecting portion can be matched with the second connecting portion, so that the flow switch body (1) is connected at a preset angle relative to the circumference of the connector (21).

2. Fool-proof flow switch according to claim 1, characterized in that one of the first and second connection parts comprises a first bump (111) and the other comprises a first connection groove (211), the first bump (111) being insertable into the first connection groove (211).

3. Fool-proof flow switch according to claim 1, characterized in that the flow switch body (1) further comprises a housing (12), the fool-proof snap ring (11) is detachably connected with the housing (12), a third connecting portion asymmetric along the circumferential direction of the fool-proof snap ring (11) is arranged on the outer side wall of the fool-proof snap ring (11), a fourth connecting portion is correspondingly arranged on the inner side wall of the first end of the housing (12), and the fourth connecting portion can be matched with the third connecting portion so that the fool-proof snap ring (11) is connected at a preset angle relative to the circumferential direction of the housing (12).

4. A fool-proof flow switch according to claim 3, wherein one of the third and fourth connection portions comprises a second bump (112) and the other comprises a second connection groove (121), the second bump (112) being insertable into the second connection groove (121).

5. Fool-proof flow switch according to claim 3, characterized in that in both the outer wall of the fool-proof snap ring (11) and the inner wall of the first end of the housing (12), one is provided with a snap (113) and the other is provided with a clamping groove (122), the snap (113) being capable of being clamped in the clamping groove (122).

6. A fool-proof flow switch according to claim 3, wherein the flow switch body (1) further comprises a target rod (13) and a target rod fixing member (14), the target rod (13) is sleeved with the target rod fixing member (14), the target rod fixing member (14) is arranged on the inner wall of the housing (12), so that the first end of the target rod (13) is arranged in the housing (12), the second end of the target rod (13) is arranged in the pipeline (2), the first end of the target rod (13) is provided with a first magnetic member, two sides of the housing (12) are respectively provided with a second magnetic member, and the target rod (13) can swing relative to the target rod fixing member (14) so that the first magnetic member is selectively attracted with the second magnetic member.

7. Fool-proof flow switch according to claim 6, characterized in that a connecting column (131) perpendicular to the axis of the target rod (13) is arranged on the side wall of the target rod (13), a fixing hole (141) is arranged on the side wall of the target rod fixing piece (14), and the connecting column (131) is rotationally inserted into the fixing hole (141).

8. The fool-proof flow switch of claim 6, wherein the flow switch body (1) further comprises a mounting sleeve (15), the mounting sleeve (15) is sleeved on the housing (12), two accommodating grooves (151) are respectively formed in one side, close to the housing (12), of the mounting sleeve (15), and the second magnetic pieces are arranged in the accommodating grooves (151) in a one-to-one correspondence manner.

9. A fool-proof flow switch according to claim 3, characterized in that one of the end face of the first end of the housing (12) and the end face of the first end of the connector (21) is provided with an annular mounting groove (212), and a sealing ring (4) is provided in the mounting groove (212) to sealingly connect the end face of the first end of the housing (12) and the end face of the first end of the connector (21).

10. Fool-proof flow switch according to any of claims 1-9, further comprising a connecting piece (3), wherein the connecting piece (3) is sleeved outside the flow switch body (1) and is in threaded connection with the second end of the connector (21) so as to axially fix the flow switch body (1) and the connector (21).