CN217114225U - Flow switch - Google Patents
Flow switch Download PDFInfo
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- CN217114225U CN217114225U CN202123280904.9U CN202123280904U CN217114225U CN 217114225 U CN217114225 U CN 217114225U CN 202123280904 U CN202123280904 U CN 202123280904U CN 217114225 U CN217114225 U CN 217114225U
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- sleeve
- swing rod
- main cylinder
- seat
- wall
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Abstract
A flow switch, comprising: the upper part of the main cylinder is radially provided with a mounting channel; the fixed sleeve is sleeved at the upper part of the main cylinder, and the lower part of the outer wall of the fixed sleeve is provided with a first magnet; the magnetic reed pipe sheath penetrates through the installation channel at the upper part of the main cylinder, and a magnetic reed switch, a connecting terminal and a lead are arranged in the magnetic reed pipe sheath; the swing rod seat is arranged in the main cylinder; the swing rod is arranged in the swing rod seat. The upper end part of the first magnet is provided with a first magnet; the antifouling sleeve is in a round table shape with a large upper part and a small lower part, the upper part of the antifouling sleeve is arranged at the lower part of the main cylinder, and the lower part of the antifouling sleeve is locked on the swing rod through a nut and a gasket; the fixed seat is of a sleeve structure, is sleeved outside the antifouling sleeve, and the lower end part of the fixed seat is inserted into the water pipe; and the screw cap is sleeved on the lower part of the main cylinder and the upper part of the fixing seat. Flow switch passes through institutional advancement, makes inner structure waterproof, antifouling, applicable in the relatively poor or extreme environment such as the temperature is extremely low of medium environment, has improved flow switch's reliability greatly.
Description
Technical Field
The utility model relates to a flow switch.
Background
The flow switch is a flow control switch of the water source multi-split air conditioner, and when the water flow is large enough, the flow switch is switched on, and a compressor of the unit can be started; when the water flow is reduced to be below the allowable value, the water flow is disconnected, and the compressor of the unit is forcibly stopped so as to protect the safety of the unit.
The lower part of a main body cylinder of the existing flow switch is not closed as disclosed in Chinese patent No. 201621036566.0, and in the working process, water and particles in the water possibly enter the main body cylinder and are adsorbed to the top of a swing rod and outside a magnet matched with a magnetic reed switch, so that the working sensitivity of the flow switch is influenced.
In addition, the northern weather is cold, and when the outdoor temperature is lower than the temperature (or a set value) below the extremely low temperature- ° C, the unit can automatically start the internal circulation, and the machine fault alarm occurs because: the flow switch is internally filled with water and freezes, and the normal action cannot be realized. Or the working environment of the product is poor, floating dust, metal scraps and the like enter the flow switch through media such as water and the like, the original performance of the flow switch is affected, and the flow switch does not work or is abnormal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flow switch through institutional advancement, makes inner structure waterproof, antifouling, applicable in the relatively poor or extreme environment such as the temperature is extremely low of medium environment, has improved flow switch's reliability greatly.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a flow switch, comprising a flow switch having a housing,
the main cylinder is a cylinder, the upper part of the main cylinder is radially provided with a left-right through mounting channel, and the top surface of the main cylinder is provided with a mounting hole communicated with the mounting channel; a cavity with an opening at the lower end is arranged in the middle of the main cylinder, a fixing sleeve with the outer diameter larger than that of the main cylinder is arranged at the lower part of the main cylinder, a fixing groove is arranged at the lower part of the outer wall of the fixing sleeve along the circumferential direction, and an accommodating groove is arranged at the inner wall of the fixing sleeve along the circumferential direction;
the fixed sleeve is sleeved at the upper part of the main cylinder; the upper part of the fixed sleeve is radially provided with a fixed groove which is communicated left and right, the lower part of the outer wall at one side of the fixed sleeve is convexly provided with at least one first containing seat, and a first magnet is arranged in the first containing seat;
one side of the magnetic reed pipe sheath penetrates through the mounting channel at the upper part of the main cylinder and the fixing groove at the upper part of the fixing sleeve and is locked by a screw from the mounting hole at the top surface of the main cylinder; the magnetic reed switch and a lead wire connected with the magnetic reed switch are arranged in the magnetic reed pipe sheath, resin is filled in the magnetic reed pipe sheath, and the lead wire leads out a connecting terminal or a connector outside the magnetic reed pipe sheath;
the swing rod seat is arranged in the accommodating groove in the inner wall of the main cylinder fixing sleeve, the swing rod seat is a ring body, and an arc-shaped groove is formed in the inner wall of the ring body along the circumferential direction;
the swing rod penetrates through a swing rod seat on the inner side of the opening end of the main barrel, an arc-shaped guide strip matched with the arc-shaped groove of the swing rod seat is arranged on the outer wall of the middle part of the swing rod in a protruding mode along the circumferential direction, and the swing rod swings with the arc-shaped guide strip as the center; the upper end part of the swing rod in the main cylinder is provided with a second containing seat with an opening at the upper end, and a second magnet is arranged in the second containing seat; an annular boss is arranged on the swing rod body below the arc-shaped guide strip along the circumferential direction, an annular groove is arranged on the inner side of the bottom surface of the boss, and an external thread is arranged on the swing rod body below the boss; preferably, the lower end part of the swing rod is cylindrical;
the antifouling sleeve is in a round table shape with a large upper part and a small lower part, the opening side of the upper end of the antifouling sleeve is outwards bent and extended to form a platform and then upwards bent and extended to form a fixing part, a fixing strip is convexly arranged on the upper part of the inner wall of the fixing part along the circumferential direction, the fixing strip is embedded in a fixing groove on the fixing sleeve on the lower part of the main cylinder, and a first sealing strip is convexly arranged in the middle of the bottom surface of the platform along the circumferential direction; the center of the bottom of the anti-fouling sleeve is provided with a through hole for the swing rod to pass through, the inner edge of the port of the through hole extends upwards to form a second sealing strip, the second sealing strip is embedded in an annular groove on the bottom surface of the boss of the swing rod, and the nut and a gasket are matched with the external thread on the rod body of the swing rod to lock the anti-fouling sleeve on the swing rod;
the fixed seat is of a sleeve structure and is sleeved outside the antifouling sleeve, a sealing groove is formed in the center of the upper end face of the fixed seat along the circumferential direction, and a first sealing strip on the antifouling sleeve is embedded in the sealing groove; the outer wall of the upper part of the fixed seat is provided with threads, the lower part of the fixed seat is in a round table shape, and the lower end part of the fixed seat is inserted into the water pipe;
the nut is sleeved on the lower part of the main cylinder and the upper part of the fixed seat, and the lower part of the inner wall of the nut is provided with an internal thread matched with the thread on the upper part of the outer wall of the fixed seat.
Preferably, a plurality of guide strips are arranged on the inner wall of the fixed sleeve on the lower portion of the main cylinder at intervals along the circumferential direction, the guide strips are axially designed, correspondingly, a plurality of guide grooves matched with the guide strips are arranged on the outer wall of the swing rod seat at intervals along the circumferential direction.
Preferably, the swing rod seat is formed by combining two semi-circular ring bodies, and arc-shaped grooves are formed in the inner walls of the two semi-circular ring bodies along the circumferential direction.
Preferably, the cross section of the arc-shaped groove on the inner wall of the ring body of the swing rod seat is hemispherical, and correspondingly, the cross section of the arc-shaped guide strip on the outer wall of the middle part of the swing rod is hemispherical.
Preferably, the two sides of the lower part of the outer wall of the fixed sleeve are symmetrically provided with first containing seats.
Preferably, a sealing cover is arranged on the first accommodating seat.
Preferably, the fixed sleeve and the first accommodating seat are of an integral structure.
Preferably, the magnetic reed pipe sheath is internally provided with a salient point capable of preventing the lead from falling off.
Preferably, the dirt-proof sleeve is integrated with the first and second seal strips.
Preferably, the antifouling sleeve is a silica gel sleeve; the nut and the gasket are made of rustproof and corrosion-resistant materials.
Compared with the prior art, the beneficial effects of the utility model are that:
pendulum rod and pendulum rod seat contact surface all adopt arc or spherical design, through arc or spherical structure parcel cooperation, the action is more nimble, and accurate matched stack is convenient.
The guide groove and the guide strip are designed and matched between the swing rod seat and the main cylinder, and the swing rod seat can be assembled at will without direction division and fool-proofing.
The rubber anti-fouling sleeve is provided with the first sealing ring strip and the second sealing ring strip, and the anti-fouling sleeve has a sealing function due to the integrated structure.
The antifouling sleeve is locked with the swing rod through nut threaded connection, the nut is fastened and a gasket is arranged in the middle, the sealing area is further increased, and the antifouling sleeve can be prevented from being damaged by assembly.
The tail end of the swing rod is not of a sheet structure adopted in the prior art, and the swing rod can be a cylinder, does not have direction division, and is more flexible and sensitive.
The first containing seat is provided with a sealing cover, so that the antifouling effect is further improved.
The inner wall of the magnetic reed pipe sheath is provided with a salient point for preventing forced separation, so that the pulling-out force of the lead and the filling resin is increased, and the anti-separation is realized.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a perspective exploded view of an embodiment of the present invention;
fig. 3 is a top view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
fig. 5 is an exploded perspective view of an embodiment of the present invention;
fig. 6 is an exploded perspective view of an embodiment of the present invention.
Detailed Description
Referring to fig. 1 to 6, the flow switch of the present invention comprises,
the main cylinder 1 is a cylinder, the upper part of the main cylinder is radially provided with a mounting channel 101 which is communicated with the left and the right, and the top surface of the main cylinder is provided with a mounting hole 102 communicated with the mounting channel 101; a cavity 103 with an opening at the lower end is arranged in the middle of the main cylinder 1, a fixing sleeve 104 with the outer diameter larger than that of the main cylinder 1 is arranged at the lower part of the main cylinder 1, a fixing groove 1041 is arranged at the lower part of the outer wall of the fixing sleeve 104 along the circumferential direction, and an accommodating groove 1042 is arranged at the inner wall of the fixing sleeve 104 along the circumferential direction;
the fixed sleeve 2 is sleeved on the upper part of the main cylinder 1; the upper part of the fixed sleeve 2 is radially provided with a left-right through fixed groove 21, the lower part of the outer wall at one side of the fixed sleeve 2 is convexly provided with at least one first containing seat 22, and a first magnet 23 is arranged in the first containing seat 22;
one side of the magnetic reed pipe sheath 3 penetrates through the mounting channel 101 at the upper part of the main cylinder 1 and the fixing groove 21 at the upper part of the fixing sleeve 2, and is locked by a screw 4 from a mounting hole 102 at the top surface of the main cylinder 1; the magnetic reed pipe sheath 3 is internally provided with a magnetic reed switch 6 and a lead 61 connected with the magnetic reed switch 6, resin is filled in the magnetic reed pipe sheath 3, and the lead 61 leads out an external connecting terminal or a connector of the magnetic reed pipe sheath 3;
the swing rod seat 7 is arranged in the accommodating groove 1042 of the inner wall of the fixed sleeve 104 of the main cylinder 1, the swing rod seat 7 is a circular ring body, and the inner wall of the circular ring body is circumferentially provided with an arc-shaped groove 71;
the swing rod 8 is arranged in the swing rod seat 7 on the inner side of the opening end of the main cylinder 1 in a penetrating manner, an arc-shaped guide strip 81 matched with the arc-shaped groove 71 of the swing rod seat 7 is arranged on the outer wall of the middle part of the swing rod 8 in a protruding manner along the circumferential direction, and the swing rod 8 swings with the arc-shaped guide strip as the center; the upper end part of the swing rod 8 positioned in the main cylinder 1 is provided with a second containing seat 82 with an opening at the upper end, and a second magnet 9 is arranged in the second containing seat 82; an annular boss 82 is arranged on the rod body of the swing rod 8 below the arc-shaped guide strip 81 along the circumferential direction, an annular groove 821 is arranged on the inner side of the bottom surface of the boss 82, and an external thread 83 is arranged on the rod body of the swing rod 8 below the boss 82; preferably, the lower end part of the swing rod 8 is cylindrical;
the antifouling sleeve 10 is in a circular truncated cone shape with a large upper part and a small lower part, the opening side of the upper end of the antifouling sleeve is bent outwards to form a platform 1001, then the upper end of the platform is bent upwards to form a fixing part 1002, a fixing strip 1003 is arranged on the upper part of the inner wall of the fixing part 1002 in a protruding mode along the circumferential direction, the fixing strip 1003 is embedded in a fixing groove 1041 in a fixing sleeve 104 on the lower part of the main cylinder 1, and a first sealing strip 1004 is arranged in the middle of the bottom surface of the platform 101 in a protruding mode along the circumferential direction; a through hole 1005 for the swing rod 8 to pass through is formed in the center of the bottom of the anti-fouling sleeve 10, the inner edge of the port of the through hole 1005 extends upwards to form a second sealing strip 1006, the second sealing strip 1006 is embedded in an annular groove 821 on the bottom surface of the boss 82 of the swing rod 8, and the anti-fouling sleeve 10 is locked on the swing rod 8 through the matching of a nut 11 and a gasket 12 with an external thread 83 on the rod body of the swing rod 8;
the fixing seat 13 is of a sleeve structure and is sleeved outside the antifouling sleeve 10, a sealing groove 131 is formed in the center of the upper end face of the fixing seat 13 along the circumferential direction, and the first sealing strip 1004 on the antifouling sleeve 10 is embedded in the sealing groove 131; the outer wall of the upper part of the fixed seat 13 is provided with a thread 132, the lower part of the fixed seat 13 is in a round table shape, and the lower end part is inserted into the water pipe 100;
and the nut 14 is sleeved on the lower part of the main cylinder 1 and the upper part of the fixed seat 13, and the lower part of the inner wall of the nut is provided with an internal thread matched with the thread 132 on the upper part of the outer wall of the fixed seat 13.
Further, a plurality of guide bars 105 are arranged on the inner wall of the fixed sleeve 104 at the lower part of the main cylinder 1 at intervals along the circumferential direction, the guide bars 105 are designed in the axial direction, and correspondingly, a plurality of guide grooves 72 matched with the guide bars 105 are arranged on the outer wall of the swing rod seat 7 at intervals along the circumferential direction.
Preferably, the swing rod seat 7 is formed by combining two semi-circular ring bodies, and arc-shaped grooves are formed in the inner walls of the two semi-circular ring bodies along the circumferential direction.
Preferably, the cross section of the arc-shaped groove 71 on the inner wall of the circular ring body of the swing rod seat 7 is hemispherical, and correspondingly, the cross section of the arc-shaped guide strip 81 on the outer wall of the middle part of the swing rod 8 is hemispherical.
Preferably, the first containing seats 22 are symmetrically arranged on both sides of the lower part of the outer wall of the fixing sleeve 2.
Preferably, the first containing seat 22 is provided with a sealing cover 15.
Preferably, the fixing sleeve 2 and the first containing seat 22 are of an integral structure.
Preferably, the magnetic reed pipe sheath is internally provided with a salient point capable of preventing the lead from falling off.
Preferably, the dirt-proof sleeve is integrated with the first and second seal strips.
Preferably, the antifouling sleeve is a silica gel sleeve; the nut and the gasket are made of rustproof and corrosion-resistant materials.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and equivalent arrangements can be made without departing from the scope of the present invention, which is intended to be covered by the appended claims.
Claims (12)
1. A flow switch, comprising,
the main cylinder is a cylinder, the upper part of the main cylinder is radially provided with a left-right through mounting channel, and the top surface of the main cylinder is provided with a mounting hole communicated with the mounting channel; a cavity with an opening at the lower end is arranged in the middle of the main cylinder, a fixing sleeve with the outer diameter larger than that of the main cylinder is arranged at the lower part of the main cylinder, a fixing groove is arranged at the lower part of the outer wall of the fixing sleeve along the circumferential direction, and an accommodating groove is arranged at the inner wall of the fixing sleeve along the circumferential direction;
the fixed sleeve is sleeved at the upper part of the main cylinder; the upper part of the fixed sleeve is radially provided with a fixed groove which is communicated left and right, the lower part of the outer wall at one side of the fixed sleeve is convexly provided with at least one first containing seat, and a first magnet is arranged in the first containing seat;
one side of the magnetic reed pipe sheath penetrates through the mounting channel at the upper part of the main cylinder and the fixing groove at the upper part of the fixing sleeve and is locked by a screw from the mounting hole at the top surface of the main cylinder; the magnetic reed switch and a lead wire connected with the magnetic reed switch are arranged in the magnetic reed pipe sheath, resin is filled in the magnetic reed pipe sheath, and the lead wire leads out a connecting terminal or a connector outside the magnetic reed pipe sheath;
the swing rod seat is arranged in the accommodating groove in the inner wall of the main cylinder fixing sleeve, the swing rod seat is a ring body, and an arc-shaped groove is formed in the inner wall of the ring body along the circumferential direction;
the swing rod penetrates through a swing rod seat on the inner side of the opening end of the main barrel, an arc-shaped guide strip matched with the arc-shaped groove of the swing rod seat is arranged on the outer wall of the middle part of the swing rod in a protruding mode along the circumferential direction, and the swing rod swings with the arc-shaped guide strip as the center; the upper end part of the swing rod in the main cylinder is provided with a second containing seat with an opening at the upper end, and a second magnet is arranged in the second containing seat; an annular boss is arranged on the swing rod body below the arc-shaped guide strip along the circumferential direction, an annular groove is arranged on the inner side of the bottom surface of the boss, and an external thread is arranged on the swing rod body below the boss;
the antifouling sleeve is in a round table shape with a large upper part and a small lower part, the opening side of the upper end of the antifouling sleeve is outwards bent and extended to form a platform and then upwards bent and extended to form a fixing part, a fixing strip is convexly arranged on the upper part of the inner wall of the fixing part along the circumferential direction, the fixing strip is embedded in a fixing groove on the fixing sleeve on the lower part of the main cylinder, and a first sealing strip is convexly arranged in the middle of the bottom surface of the platform along the circumferential direction; the center of the bottom of the anti-fouling sleeve is provided with a through hole for the swing rod to pass through, the inner edge of the port of the through hole extends upwards to form a second sealing strip, the second sealing strip is embedded in an annular groove on the bottom surface of the boss of the swing rod, and the nut and a gasket are matched with the external thread on the rod body of the swing rod to lock the anti-fouling sleeve on the swing rod;
the fixed seat is of a sleeve structure and is sleeved outside the antifouling sleeve, a sealing groove is formed in the center of the upper end face of the fixed seat along the circumferential direction, and a first sealing strip on the antifouling sleeve is embedded in the sealing groove; the outer wall of the upper part of the fixed seat is provided with threads, the lower part of the fixed seat is in a round table shape, and the lower end part of the fixed seat is inserted into the water pipe;
the nut is sleeved on the lower part of the main cylinder and the upper part of the fixed seat, and the lower part of the inner wall of the nut is provided with an internal thread matched with the thread on the upper part of the outer wall of the fixed seat.
2. The flow switch as claimed in claim 1, wherein said main cylinder lower fixing sleeve has a plurality of guide strips circumferentially spaced on its inner wall, said guide strips being axially configured, and correspondingly, said rocker seat has a plurality of guide slots circumferentially spaced on its outer wall for mating with said guide strips.
3. The flow switch of claim 1, wherein the rocker base is formed by combining two semi-circular rings, and the inner walls of the two semi-circular rings are provided with arc-shaped grooves along the circumferential direction.
4. A flow switch according to claim 1 or 3, wherein the arc-shaped groove on the inner wall of the ring body of the rocker seat has a hemispherical cross-section, and correspondingly, the arc-shaped guide strip on the outer wall of the middle part of the rocker has a hemispherical cross-section.
5. The flow switch as claimed in claim 1, wherein the first receiving seats are symmetrically disposed on both sides of the lower portion of the outer wall of the fixed sleeve.
6. A flow switch as claimed in claim 1 or 5 wherein said first housing seat is provided with a sealing cover.
7. A flow switch as claimed in claim 1 or 5 wherein said retaining sleeve is of integral construction with said first receptacle.
8. A flow switch as claimed in claim 6 wherein said retaining sleeve is of unitary construction with said first receptacle.
9. The flow switch of claim 1 wherein the reed switch sheath has a bump that prevents the wire from falling off.
10. A flow switch as claimed in claim 1 wherein said dirt protector is integrally formed with said first and second sealing strips.
11. A flow switch as in claim 1 wherein said anti-fouling sleeve is a silicone sleeve; the nut and the gasket are made of rustproof and corrosion-resistant materials.
12. A flow switch as claimed in claim 1 wherein said rocker lower end is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123280904.9U CN217114225U (en) | 2021-12-24 | 2021-12-24 | Flow switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123280904.9U CN217114225U (en) | 2021-12-24 | 2021-12-24 | Flow switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217114225U true CN217114225U (en) | 2022-08-02 |
Family
ID=82590784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123280904.9U Active CN217114225U (en) | 2021-12-24 | 2021-12-24 | Flow switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217114225U (en) |
-
2021
- 2021-12-24 CN CN202123280904.9U patent/CN217114225U/en active Active
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