CN211700135U - Micro-transmission assembly and wind pressure switch - Google Patents

Abstract

The utility model discloses a micro-transmission assembly and wind pressure switch, the wind pressure switch includes casing subassembly and micro-transmission assembly, micro-transmission assembly includes first sheetmetal, second sheetmetal, connection sheetmetal, action sheetmetal and stable shell fragment, the both ends of connection sheetmetal respectively with second sheetmetal and action sheetmetal activity joint, the both ends of stable shell fragment respectively with action sheetmetal and second sheetmetal fixed joint, connection sheetmetal can rotate relatively, the action sheetmetal can contact with first sheetmetal; the shell assembly comprises a first shell, a second shell and a diaphragm, the diaphragm is respectively in sealing connection with the first shell and the second shell to form a first cavity and a second cavity, the first cavity is communicated with a first detection port, the second cavity is communicated with a second detection port, the micro-transmission assembly is located in the second cavity, a push rod is connected to the diaphragm, and the push rod is connected with the action metal sheet. The utility model discloses simple structure can reduce processing and cost of labor.

Description

Micro-transmission assembly and wind pressure switch

Technical Field

The utility model relates to the technical field of switches, in particular to little transmission assembly and wind pressure switch.

Background

The wind pressure switch is a detection switch element, generally used on machinery requiring wind pressure, such as gas water heaters, gas furnaces and other electrical products using gas, and has two detection ports, namely a positive pressure detection port and a negative pressure detection port, a cavity body of the wind pressure switch is also divided into a positive pressure cavity and a negative pressure cavity, and an elastic diaphragm is arranged between the two cavities; at present, two mainstream design forms of a wind pressure switch are provided, namely an external micro-transmission set (micro-switch) and an internal micro-transmission set, wherein transmission members of the two micro-transmission sets are connected with a diaphragm, and when a fan is started to enable pressure difference to exist between two cavities of the wind pressure switch, the diaphragm moves and triggers the micro-transmission set, so that the micro-transmission set is connected in a closed loop mode, and the purpose of controlling on or off through wind pressure is achieved. The wind pressure switch of the external micro-transmission set of the prior art has the advantages that a transmission part or a whole micro-switch is easy to damage in the using process, the stability and the reliability of the wind pressure switch are influenced, the wind pressure switch of the internal micro-transmission set is complex in structural design and production process, manual and mechanical riveting parts are required to be used for multiple times, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a micro-transmission assembly, its simple structure can make things convenient for the manufacturing, has reduced processing and cost of labor.

The utility model discloses still provide an above-mentioned micro-transmission assembly's of internal integration wind pressure switch.

According to the utility model discloses a first aspect embodiment micro-transmission assembly, it includes first sheetmetal, second sheetmetal, connection sheetmetal, action sheetmetal and stable shell fragment, the both ends of connecting the sheetmetal respectively with the second sheetmetal with action sheetmetal activity joint, the both ends of stabilizing the shell fragment respectively with the action sheetmetal with the fixed joint of second sheetmetal, it can be relative to connect the sheetmetal the second sheetmetal rotates, the action sheetmetal can be relative connect the sheetmetal to rotate, the action sheetmetal can with first sheetmetal contact.

According to the utility model discloses micro-transmission assembly, it has following beneficial effect at least: by arranging the connecting metal sheets, two ends of each connecting metal sheet are movably clamped with the action metal sheet and the second metal sheet respectively, on one hand, the clamping structure between the metal sheets can facilitate the installation of the micro-transmission assembly, facilitate the production and the manufacture, and reduce the processing and labor cost; on the other hand, connect the sheetmetal and can rotate and move the sheetmetal and can rotate relatively connecting the sheetmetal relatively the second sheetmetal for when moving sheetmetal and first sheetmetal contact, can reduce the bending deformation of sheetmetal through the rotation between the sheetmetal, improve micro-transmission assembly's durability and reliability.

According to a second aspect of the present invention, a wind pressure switch comprises a housing assembly and a micro-transmission assembly according to the first aspect of the present invention, the shell assembly comprises a first shell and a second shell, a diaphragm is arranged between the first shell and the second shell, the diaphragm is hermetically connected with the first shell to form a first cavity, the diaphragm is hermetically connected with the second shell to form a second cavity, the first shell is provided with a first detection port communicated with the first cavity, the second shell is provided with a second detection port communicated with the second cavity, the micro-transmission assembly is located in the second cavity, the first metal sheet and the second metal sheet are fixedly arranged on the inner wall of the second shell, a push rod is connected to the diaphragm, and the push rod is connected with the action metal sheet.

According to the utility model discloses wind pressure switch, it has following beneficial effect at least: form first cavity and second cavity through setting up the diaphragm separation between first casing and second casing, its sealed effect is better, sets up micro-transmission assembly in the second cavity, and the manufacturing of being convenient for reduces processing and cost of labor, improves the durability and the reliability of wind pressure switch simultaneously.

According to the utility model discloses a some embodiments, be equipped with first contact on the first metal sheet, be equipped with on the action metal sheet can with the second contact of first contact, first contact with the second contact all is located just right on the position of second detection mouth. Just right the second through setting up first contact and second contact position and detecting the mouth, can directly detect the mouth through the second and clean first contact and second contact, conveniently clean the maintenance to two contacts, can avoid causing contact failure between two contacts.

According to some embodiments of the present invention, the second housing is provided with a first adjusting member, and the first adjusting member can adjust a distance between the first contact and the second contact. Adjust first contact through setting up first regulating part with distance between the second contact for the adjustable change of activity stroke of action sheetmetal to first sheetmetal, and then make the action pressure of wind pressure switch adjustable, can improve the utility model discloses an applicability and reliability.

According to the utility model discloses a some embodiments, there is the second regulating part through threaded connection on the second casing, the upper end of second regulating part is connected with the elastic component, the upper end butt of elastic component is in connect the sheetmetal. Through setting up the elastic component butt on connecting the sheetmetal, can improve the installation stability of connecting the sheetmetal, simultaneously, set up the second regulating part for the elastic component is adjustable to connecting the elasticity of sheetmetal, can avoid the elastic component to become invalid to connecting sheetmetal elasticity, improves the utility model discloses a durability and reliability.

According to some embodiments of the utility model, the both sides of action sheetmetal all are equipped with the locating part, the locating part is fixed to be set up on the second casing. Through setting up the mobile position that the locating part restricted action sheetmetal, take place the skew when can avoiding action sheetmetal and first sheetmetal contact to avoid causing contact failure, improve the utility model discloses a reliability.

According to the utility model discloses a some embodiments, be equipped with location portion on the second metal sheet, it supplies to correspond to be equipped with on the second casing location draw-in groove that location portion pegged graft. Through setting up location portion and positioning channel section cooperation, can make things convenient for the erection joint of second sheetmetal, can improve the installation stability of second sheetmetal simultaneously.

According to some embodiments of the utility model, fixedly connected with stabilizer on the diaphragm, stabilizer with the terminal surface laminating of diaphragm. Through setting up the terminal surface at the diaphragm with the laminating of steady voltage piece, can avoid the diaphragm to take place the shake under the effect of wind pressure to avoid the push rod to produce the swing and cause the contact failure between action sheetmetal and first sheetmetal, improve the utility model discloses a stability and reliability.

According to some embodiments of the utility model, be equipped with the locating rack on the second casing, be equipped with the confession on the locating rack the spacing hole that the push rod wore to establish. Through setting up the shift position of locating rack and spacing hole restriction push rod, can improve the stability of push rod motion, avoid the push rod to produce the swing and cause the contact failure between action sheetmetal and first sheetmetal, improve the reliability.

According to the utility model discloses a some embodiments, be equipped with the spacing boss of downward protruding formation on the locating rack, spacing boss is located the top of action sheetmetal, the action sheetmetal can the butt be in on the spacing boss. Through setting up spacing boss, make the action sheetmetal can the butt above that, on the one hand, can improve the connection stability of action sheetmetal, on the other hand can restrict the stroke position that the action sheetmetal rebound, avoids its excessive rebound, improves its reliability.

According to the utility model discloses a some embodiments, first casing with be equipped with the annular groove on one of them of second casing, correspond on the other and be equipped with annular extrusion portion, be equipped with on the diaphragm can insert to annular bulge in the annular groove, annular extrusion portion can the butt be in on the annular bulge. Through setting up annular bulge and annular groove cooperation to set up annular extrusion portion extrusion annular bulge, realize better sealing connection through the diaphragm between messenger's first casing and the second casing, improve the leakproofness of first cavity and second cavity, thereby improve the utility model discloses a reliability.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a micro-transmission assembly according to an embodiment of the present invention

FIG. 2 is an exploded view of the micro-actuator assembly of FIG. 1;

FIG. 3 is a schematic view of a half-section of the micro-drive assembly of FIG. 1;

fig. 4 is a schematic structural diagram of a wind pressure switch according to a second embodiment of the present invention;

FIG. 5 is an exploded view of the wind pressure switch of FIG. 4;

FIG. 6 is a schematic view of a half-section of the wind pressure switch of FIG. 4;

FIG. 7 is a second schematic view of a half-section of the wind pressure switch of FIG. 4;

fig. 8 is a schematic top view of the second housing in fig. 4.

Reference numerals:

the detection device comprises a shell assembly 100, a first shell 110, a first detection port 111, an annular extrusion part 112, a mounting hole 113, a second shell 120, a second detection port 121, an elastic part 122, a first slot 123, a second slot 124, a first adjusting part 125, a limiting part 126, a positioning slot 127, an annular groove 128, a second adjusting part 129, a diaphragm 130, a pressure stabilizing part 131, a clamping hole 132, an annular bulge 133, a first cavity 140, a second cavity 150, a push rod 160, a clamping boss 161, a first abutting part 162, a second abutting part 163, a positioning frame 170, a limiting hole 171 and a limiting boss 172;

the micro-transmission assembly 200, a first metal sheet 210, a first contact 211, a second metal sheet 220, a positioning portion 221, a first connecting clamping groove 222, a first elastic sheet clamping groove 223, a connecting metal sheet 230, an avoiding concave position 231, a second through hole 232, an action metal sheet 240, a second contact 241, an avoiding notch 242, a first through hole 243, a second connecting clamping groove 244, a second elastic sheet clamping groove 245 and a stabilizing elastic sheet 250.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.

If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

According to the utility model discloses a first aspect embodiment, refer to fig. 1, fig. 2 and fig. 3, a micro transmission assembly 200, it includes first sheetmetal 210, second sheetmetal 220, connect sheetmetal 230, action sheetmetal 240 and stable shell fragment 250, connect sheetmetal 230's both ends respectively with second sheetmetal 220 and action sheetmetal 240 activity joint, the both ends of stable shell fragment 250 respectively with action sheetmetal 240 and the fixed joint of second sheetmetal 220, connect sheetmetal 230 can rotate second sheetmetal 220 relatively, action sheetmetal 240 can connect sheetmetal 230 relatively and rotate, action sheetmetal 240 can contact with first sheetmetal 210.

By arranging the connecting metal sheet 230, two ends of the connecting metal sheet 230 are movably clamped with the action metal sheet 240 and the second metal sheet 220 respectively, on one hand, the clamping structure between the metal sheets can facilitate the installation of the micro-transmission assembly 200, the production and the manufacture, and the processing and labor cost can be reduced; on the other hand, the connecting metal plate 230 can rotate relative to the second metal plate 220 and the actuating metal plate 240 can rotate relative to the connecting metal plate 230, so that when the actuating metal plate 240 contacts the first metal plate 210, the bending deformation of the metal plates can be reduced through the rotation between the metal plates, and the durability and reliability of the micro-transmission assembly 200 are improved.

In this embodiment, as shown in fig. 1, 2 and 3, the second metal sheet 220 is provided with a first connecting slot 222 and a first spring plate slot 223, and correspondingly, the action metal sheet 240 is provided with a second connecting slot 244 and a second spring plate slot 245, one end of the connecting metal sheet 230 is inserted into the first connecting slot 222 and bent to realize movable clamping with the second metal sheet 220 and enable the connecting metal sheet 230 to rotate relative to the second metal sheet 220, and the other end of the connecting metal sheet 230 is inserted into the second connecting slot 244 and bent to realize movable clamping with the action metal sheet 240 and enable the action metal sheet 240 to rotate relative to the connecting metal sheet 230; the action metal sheet 240 is provided with an avoiding notch 242 for the stable elastic sheet 250 to penetrate through, the connecting metal sheet 230 is provided with an avoiding concave position 231 for the stable elastic sheet 250 to connect, the stable elastic sheet 250 penetrates through the avoiding notch 242 to form the action metal sheet 240, and two ends of the stable elastic sheet 250 are respectively clamped and fixed in the first elastic sheet clamping groove 223 and the second elastic sheet clamping groove 245, so that the fixed connection with the second metal sheet 220 and the action metal sheet 240 is realized.

When the device is used, the first metal sheet 210 and the second metal sheet 220 are respectively and fixedly arranged at corresponding positions, the stable elastic sheet 250 supports the action metal sheet 240 to be in a stable state, and at the moment, the action metal sheet 240 is not in contact with the first metal sheet 210; when an external force is applied to the actuating metal piece 240, the connecting metal piece 230 rotates relative to the second metal piece 220, and the actuating metal piece 240 rotates relative to the connecting metal piece 230, and simultaneously the stable resilient piece 250 is compressed, so that the actuating metal piece 240 contacts with the first metal piece 210.

In practical application, the movable clamping manner of the connecting metal sheet 230 and the second metal sheet 220 and the action metal sheet 240 is not limited to this, for example, a strip-shaped notch may be further provided at the joint of the connecting metal sheet 230, and correspondingly, a strip-shaped notch is also provided at the joint of the second metal sheet 220 and the action metal sheet 240, the connecting metal sheet 230 is movably clamped with the second metal sheet 220 and the action metal sheet 240 by mutual butt-joint and splicing between the strip-shaped notches, and the connecting metal sheet 230 and the action metal sheet 240 can relatively rotate, and specifically, the movable clamping manner can be set according to the actual use requirement; meanwhile, the connection mode of the stable elastic sheet 250 can be set according to actual correspondence, such as setting a buckle for clamping and the like, without limitation.

According to a wind pressure switch of a second aspect of the present invention, as shown in fig. 4, 5 and 6, which comprises a housing assembly 100 and a micro-transmission assembly 200 according to the above-mentioned first aspect of the present invention, the housing assembly 100 comprises a first housing 110 and a second housing 120, a diaphragm 130 is disposed between the first housing 110 and the second housing 120, the diaphragm 130 is hermetically connected with the first housing 110 to form a first cavity 140, the diaphragm 130 is hermetically connected with the second housing 120 to form a second cavity 150, the first housing 110 is provided with a first detecting port 111 communicated with the first cavity 140, the second housing 120 is provided with a second detecting port 121 communicated with the second cavity 150, the micro-transmission assembly 200 is located in the second cavity 150, the first metal sheet 210 and the second metal sheet 220 are both fixedly disposed on the inner wall of the second housing 120, the push rod 160 is connected to the diaphragm 130, and the push rod 160 is connected to the actuating metal sheet 240.

The first cavity 140 and the second cavity 150 are formed by arranging the diaphragm 130 between the first shell 110 and the second shell 120 in a separated manner, the sealing effect is good, the micro-transmission assembly 200 is arranged in the second cavity 150, the production and the manufacture are convenient, the processing and labor cost are reduced, and meanwhile, the durability and the reliability of the wind pressure switch are improved.

In the present embodiment, as shown in fig. 5, 6 and 7, the diaphragm 130 has an integrated disc-shaped structure, and the first cavity 140 and the second cavity 150 are separated by the integrated diaphragm 130, so that the sealing performance therebetween can be improved; the upper end of the push rod 160 is provided with a truncated cone-shaped clamping boss 161, correspondingly, the lower end of the membrane 130 is provided with a clamping hole 132 with a T-shaped cross section outline, and the membrane 130 has elasticity, so that the clamping boss 161 at the upper end of the push rod 160 can be clamped into the clamping hole 132, the detachable connection between the push rod 160 and the membrane 130 is realized, the push rod 160 can be conveniently installed and replaced, and the repair is convenient. Of course, in practical applications, the connection form between the push rod 160 and the diaphragm 130 can be set according to practical needs, such as by a threaded connection, and the like, and is not limited herein.

As shown in fig. 5, 6 and 7, the push rod 160 is provided with a first abutting portion 162 formed to protrude in the radial direction, the actuating metal piece 240 is provided with a first through hole 243, the connecting metal piece 230 is provided with a second through hole 232, the lower end of the push rod 160 is correspondingly penetrated with the actuating metal piece 240 and the connecting metal piece 230 through the first through hole 243 and the second through hole 232, the first abutting portion 162 abuts against the upper end surface of the actuating metal piece 240, the push rod 160 is further detachably provided with a second abutting portion 163, and the second abutting portion 163 is located between the actuating metal piece 240 and the connecting metal piece 230. The micro-transmission assembly 200 is disposed in the second cavity 150, as shown in fig. 8, a first slot 123 and a second slot 124 are disposed on the second housing 120, an external connection end of the first metal sheet 210 extends out of the second housing 120 through the first slot 123, and an external connection end of the second metal sheet 220 extends out of the second housing 120 through the second slot 124.

In this embodiment, the first cavity 140 is a positive pressure cavity, the second cavity 150 is a negative pressure cavity, when in use, the first detection port 111 and the second detection port 121 are respectively connected to the air pressure ends detected by the first detection port and the second detection port, when air enters the first cavity 140 or the second cavity 150 is sucked outwards, the pressure difference between the first cavity 140 and the second cavity 150 pushes the diaphragm 130 to extend downwards, so as to push the push rod 160 to move downwards, the push rod 160 pushes the action metal sheet 240 through the first abutting portion 162, the connection metal sheet 230 rotates relative to the second metal sheet 220, the action metal sheet 240 rotates relative to the connection metal sheet 230, and the stable elastic sheet 250 is compressed to contact the first metal sheet 210, connect the circuits respectively connected with the first metal sheet 210 and the second metal sheet 220, directly push the action metal sheet 240 through the push rod 160 and make it contact the first metal sheet 210, so that the reliability is high; when the pressure difference between the first cavity 140 and the second cavity 150 disappears, the diaphragm 130 deforms and recovers and drives the push rod 160 to move upward, the second abutting portion 163 abuts against the lower end surface of the action metal sheet 240 to drive the action metal sheet 240, and the second abutting portion resets under the action of the stable elastic sheet 250, so as to break the contact with the first metal sheet 210.

In practical applications, the connection mode between the push rod 160 and the actuating metal sheet 240 has a variety of modes, besides the above structures, the push rod 160 and the actuating metal sheet 240 can be screwed or bonded and fixed, and there is no limitation here, and the specific structures of the first casing 110 and the second casing 120 can be set according to practical needs, for example, the first casing 110 is provided with a mounting hole 113 for connecting with the outside, and other specific structures of the present invention are not described in detail here, and are described in detail below.

In some embodiments, the first metal sheet 210 is provided with a first contact 211, the actuating metal sheet 240 is provided with a second contact 241 capable of contacting with the first contact 211, and both the first contact 211 and the second contact 241 are located opposite to the second detection port 121. Just right the second through setting up first contact 211 and second contact 241 position detects mouth 121, can directly detect mouth 121 through the second and clean first contact 211 and second contact 241, conveniently clean the maintenance to two contacts, can avoid causing contact failure between two contacts.

In this embodiment, as shown in fig. 6 and 8, the first slot 123 and the second slot 124 are located on one side of the second housing 120 close to the second detection port 121, the first contact 211 on the first metal sheet 210 and the second contact 241 on the action metal sheet 240 are both close to the second detection port 121 and located at substantially the same horizontal height of the second detection port 121, and when the first contact 211 and the second contact 241 are oxidized to cause poor contact or contact adhesion caused by moisture, a cleaning tool can be directly inserted from the second detection port 121 to clean the first contact 211 and the second contact 241, which is convenient for cleaning, avoiding the trouble of disassembling and cleaning, and improving durability. In practical applications, the positions of the first contact 211 and the second contact 241 can be set according to the arrangement of the second detection port 121, and are not limited herein.

In some embodiments, the second housing 120 is provided with a first adjusting member 125, and the first adjusting member 125 can adjust a distance between the first contact 211 and the second contact 241. Adjust the distance between first contact 211 and the second contact 241 through setting up first regulating part 125 for the adjustable change of activity stroke of action sheetmetal 240 to first sheetmetal 210, and then make the action pressure of wind pressure switch adjustable, can improve the utility model discloses an applicability and reliability.

In this embodiment, as shown in fig. 6, the first adjusting member 125 is a bolt, the first adjusting member 125 is connected to the second housing 120 by a screw, the first adjusting member 125 is located at the lower end of the first contact 211 and abuts against the first contact 211, and when the first adjusting member 125 is rotated upward, the first contact 211 is abutted to move upward, so as to change the moving distance between the first contact 211 and the second contact 241. In practical application, the first adjusting member 125 pushes the first metal sheet 210 to move in an abutting manner, and the first metal sheet 210 can be moved by a screw rod structure, and can be set according to practical use requirements, which is not limited herein.

In some embodiments, the second housing 120 is screwed with a second adjusting member 129, the upper end of the second adjusting member 129 is connected with an elastic member 122, and the upper end of the elastic member 122 abuts against the connecting metal sheet 230. Through setting up the elastic component 122 butt on connecting the sheetmetal 230, can improve the installation stability of connecting the sheetmetal 230, simultaneously, set up second regulating part 129 for elastic component 122 is adjustable to the elasticity of connecting the sheetmetal 230, can avoid elastic component 122 to become invalid to connecting sheetmetal 230 elasticity, improves the utility model discloses a durability and reliability.

In this embodiment, as shown in fig. 6 and 7, the elastic member 122 is a spring, but the elastic member 122 may also be a spring plate or other elastic material in actual use. The second adjusting member 129 is screw-coupled to the second housing 120, and the second adjusting member 129 is rotated to move up and down with respect to the elastic member 122, thereby compressing or stretching the elastic member 122 and changing the elastic force of the elastic member 122 with respect to the connection metal piece 230. In practical applications, the specific structure of the second adjusting member 129 can be set according to practical needs, and is not limited herein.

In some embodiments, the limiting members 126 are disposed on both sides of the moving metal sheet 240, and the limiting members 126 are fixedly disposed on the second housing 120. Through setting up the mobile position that locating part 126 restricted action sheetmetal 240, take place the skew when can avoiding action sheetmetal 240 and first sheetmetal 210 contact to avoid causing contact failure, improve the utility model discloses a reliability.

In the present embodiment, as shown in fig. 7 and 8, four limiting members 126 are disposed on the second housing 120, the four limiting members 126 are respectively disposed on two sides of the action metal sheet 240 in a pairwise manner, and when the action metal sheet 240 moves up and down, the limiting members 126 can limit the action metal sheet 240 to prevent the action metal sheet from laterally shifting. In practical applications, the number of the limiting members 126 can be set according to practical application requirements, and those skilled in the art can understand that the number is not limited herein.

In some embodiments, the second metal sheet 220 is provided with a positioning portion 221, and the second housing 120 is correspondingly provided with a positioning slot 127 for the insertion of the positioning portion 221. Through setting up location portion 221 and positioning groove 127 cooperation, can make things convenient for the erection joint of second sheetmetal 220, can improve the installation stability of second sheetmetal 220 simultaneously.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 8, the two sides of the second metal sheet 220 are both provided with the positioning portions 221, the positioning portions 221 are sheet-shaped structures, and when the second metal sheet 220 is connected to the second housing 120, the positioning portions 221 are inserted into the positioning slots 127, so that the positioning and the installation of the second metal sheet 220 can be facilitated, and the installation stability can be improved. In practical applications, the positioning portion 221 and the positioning card slot 127 can be set according to practical needs, and are not limited herein.

In some embodiments, a pressure stabilizer 131 is fixedly connected to the membrane 130, and the pressure stabilizer 131 is attached to an end surface of the membrane 130. Through the terminal surface with the laminating setting of surge arrester 131 at diaphragm 130, can avoid diaphragm 130 to take place the shake under the effect of wind pressure to avoid push rod 160 to produce the swing and cause the contact failure between action sheetmetal 240 and first sheetmetal 210, improve the utility model discloses a stability and reliability.

In this embodiment, as shown in fig. 5 and fig. 6, the pressure stabilizer 131 is a disc-shaped structure, the lower end of the diaphragm 130 is provided with an annular clamping groove, the pressure stabilizer 131 is clamped and attached to the lower end surface of the diaphragm 130 through the annular clamping groove, and a rotation stopping structure is further disposed between the diaphragm 130 and the pressure stabilizer 131, so that the pressure stabilizer 131 can be prevented from rotating relative to the diaphragm 130, and the connection stability of the pressure stabilizer is improved. In practical applications, the connection between the diaphragm 130 and the pressure stabilizer 131 may be in various manners, such as a direct bonding manner, and the shape of the pressure stabilizer 131 may also be changed according to the practical situation of the diaphragm 130 in use, which is not limited herein.

In some embodiments, the second housing 120 is provided with a positioning frame 170, and the positioning frame 170 is provided with a limiting hole 171 for the push rod 160 to pass through. The positioning frame 170 and the limiting hole 171 are arranged to limit the moving position of the push rod 160, so that the stability of the motion of the push rod 160 can be improved, the poor contact between the action metal sheet 240 and the first metal sheet 210 caused by the swing of the push rod 160 can be avoided, and the reliability can be improved.

In this embodiment, as shown in fig. 5, 6 and 7, the positioning frame 170 is a shell structure, the push rod 160 penetrates through the limiting hole 171 to form the positioning frame 170, when the push rod 160 moves up and down, the limiting hole 171 can limit the push rod 160 to avoid the swing of the push rod 160, and the first abutting portion 162 can abut against the lower end of the positioning frame 170, so as to limit the stroke position of the push rod 160 when moving up and resetting, thereby improving the reliability of the present invention. In practical applications, the specific structures of the positioning frame 170 and the limiting hole 171 can be changed according to practical application requirements, and those skilled in the art can understand that the present invention is not limited thereto.

In some embodiments, the positioning frame 170 is provided with a limiting boss 172 protruding downward, the limiting boss 172 is located above the actuating metal sheet 240, and the actuating metal sheet 240 can abut against the limiting boss 172. By providing the limit boss 172, the action metal piece 240 can be abutted thereon, so that on one hand, the connection stability of the action metal piece 240 can be improved, and on the other hand, the stroke position of the upward movement of the action metal piece 240 can be limited, thereby avoiding the excessive upward movement thereof and improving the reliability thereof.

In this embodiment, as shown in fig. 6, the limiting boss 172 is located above the second contact 241, and when there is no wind pressure difference between the first cavity 140 and the second cavity 150, the second contact 241 of the actuating metal piece 240 abuts against the limiting boss 172, so as to improve the connection stability of the actuating metal piece 240. Of course, in practical applications, the setting position and the structural form of the limiting boss 172 may be changed according to the use requirement, for example, the limiting boss is set at another position abutting against the action metal sheet 240, and the height dimension of the downward protrusion may also be increased or decreased according to the use requirement, for example, the height dimension of the protrusion may be increased or decreased to make the action metal sheet 240 in an inclined state when abutting against the action metal sheet, so as to increase or decrease the distance between the two contacts, which is understood by those skilled in the art, and is not limited herein.

In some embodiments, one of the first housing 110 and the second housing 120 is provided with an annular groove 128, the other is correspondingly provided with an annular pressing portion 112, the diaphragm 130 is provided with an annular protruding portion 133 capable of being inserted into the annular groove 128, and the annular pressing portion 112 can abut against the annular protruding portion 133. Through setting up annular raised portion 133 and the cooperation of annular groove 128 to set up annular extrusion portion 112 extrusion annular raised portion 133, make and realize better sealing connection through diaphragm 130 between first casing 110 and the second casing 120, improve the leakproofness of first cavity 140 and second cavity 150, thereby improve the utility model discloses a reliability.

In this embodiment, as shown in fig. 5, 6 and 7, the annular groove 128 is disposed on the second housing 120, correspondingly, the peripheral edge of the diaphragm 130 protrudes downward to form an annular protrusion 133, the annular pressing portion 112 is disposed on the first housing 110, when the first housing 110, the diaphragm 130 and the second housing 120 are connected, the annular protrusion 133 is inserted into the annular groove 128, and the annular pressing portion 112 presses against the upper end of the annular protrusion 133, so that the annular protrusion 133 deforms, thereby improving the sealing performance of the connection among the first housing 110, the diaphragm 130 and the second housing 120. Of course, in practical applications, the annular groove 128 may also be disposed on the first housing 110, and the peripheral edge of the diaphragm 130 protrudes upwards to form the annular protrusion 133, and correspondingly, the annular pressing portion 112 is disposed on the second housing 120, and the connection structure among the first housing 110, the diaphragm 130, and the second housing 120 may be set according to practical needs, and is not limited herein.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A micro-drive assembly, comprising: first sheetmetal (210), second sheetmetal (220), connection sheetmetal (230), action sheetmetal (240) and stable shell fragment (250), the both ends of connecting sheetmetal (230) respectively with second sheetmetal (220) with action sheetmetal (240) activity joint, the both ends of stabilizing shell fragment (250) respectively with action sheetmetal (240) with the fixed joint of second sheetmetal (220), it can be relative to connect sheetmetal (230) second sheetmetal (220) rotate, action sheetmetal (240) can be relative connect sheetmetal (230) to rotate, action sheetmetal (240) can with first sheetmetal (210) contact.

2. A wind pressure switch, comprising a housing assembly (100) and a micro-actuator assembly (200) according to claim 1;

the shell assembly (100) comprises a first shell (110) and a second shell (120), a diaphragm (130) is arranged between the first shell (110) and the second shell (120), the diaphragm (130) and the first shell (110) are connected in a sealing mode to form a first cavity (140), the diaphragm (130) and the second shell (120) are connected in a sealing mode to form a second cavity (150), a first detection port (111) communicated with the first cavity (140) is formed in the first shell (110), a second detection port (121) communicated with the second cavity (150) is formed in the second shell (120), the micro-transmission assembly (200) is located in the second cavity (150), the first metal sheet (210) and the second metal sheet (220) are fixedly arranged on the inner wall of the second shell (120), and a push rod (160) is connected to the diaphragm (130), the push rod (160) is connected with the action metal sheet (240).

3. The wind pressure switch according to claim 2,

be equipped with first contact (211) on first sheetmetal (210), be equipped with on action sheetmetal (240) can with second contact (241) of first contact (211) contact, first contact (211) with second contact (241) all are located just on the position of second detection mouth (121).

4. The wind pressure switch according to claim 3,

the second shell (120) is provided with a first adjusting piece (125), and the first adjusting piece (125) can adjust the distance between the first contact (211) and the second contact (241).

5. The wind pressure switch according to claim 2,

a second adjusting piece (129) is connected to the second shell (120) through threads, an elastic piece (122) is connected to the upper end of the second adjusting piece (129), and the upper end of the elastic piece (122) abuts against the connecting metal sheet (230).

6. The wind pressure switch according to claim 2,

both sides of the action metal sheet (240) are provided with limiting pieces (126), and the limiting pieces (126) are fixedly arranged on the second shell (120).

7. The wind pressure switch according to claim 2,

the second metal sheet (220) is provided with a positioning part (221), and the second shell (120) is correspondingly provided with a positioning clamping groove (127) for the insertion of the positioning part (221).

8. The wind pressure switch according to claim 2,

the diaphragm (130) is fixedly connected with a pressure stabilizing piece (131), and the pressure stabilizing piece (131) is attached to the end face of the diaphragm (130).

9. The wind pressure switch according to claim 2,

and a positioning frame (170) is arranged on the second shell (120), and a limiting hole (171) for the push rod (160) to penetrate is formed in the positioning frame (170).

10. The wind pressure switch according to claim 9,

the positioning frame (170) is provided with a limiting boss (172) protruding downwards, the limiting boss (172) is located above the action metal sheet (240), and the action metal sheet (240) can abut against the limiting boss (172).

Images