CN217333869U - Waterproof foot switch of multichannel - Google Patents

Abstract

The utility model discloses a multi-path waterproof foot switch, which comprises a base and a pedal, wherein the base comprises a bottom plate and a side wall surrounding the periphery of the bottom plate, and the side wall surrounds the bottom plate and extends upwards to form an inner cavity of the base; the side wall has a first continuous portion with a height H1, the first continuous portion and the bottom plate isolate the inner cavity of the base in the range of the height H1 from the outside fluid; the inner cavity of the base is provided with a reed switch fixing chamber and a plurality of switch fixing chambers, and the fixing chambers are divided by walls arranged on a base plate foundation; wherein the wall surrounding the reed switch holding chamber has a second continuous portion of height H2 such that the interior of the reed switch holding chamber is fluidly isolated from the exterior over a height H2. The multi-path waterproof foot switch is reasonable in structural design, easy to assemble, capable of triggering multiple paths, reliable in waterproof performance and capable of feeding back on-off states to operators.

Description

Waterproof foot switch of multichannel

Technical Field

The utility model relates to the technical field of switches, concretely relates to waterproof foot switch of multichannel.

Background

The foot switch is a switch for controlling the on-off of a circuit by stepping on or stepping on the foot, and is used in a control circuit which can not be reached by two hands to replace the two hands to achieve the purpose of operation. The method is widely applied to medical instruments, stamping equipment, welding equipment, textile equipment and printing machinery. At present, foot switches with different appearances on the market are various in types, but most of the foot switches have single functions, and the requirement that a plurality of devices which are electrically isolated from each other need to be triggered simultaneously cannot be met. For example, CN212084859U discloses a two-way control foot switch, which can only satisfy the requirement of synchronous triggering of two devices at the same time through the arrangement of a sliding chute, a sliding shaft, a movable contact piece and the like.

Because the foot switch is usually placed on the ground for use, when the foot switch is used in a severe environment such as water on the ground, equipment damage and personnel injury are easily caused by wrong triggering. CN206179698U discloses a waterproof foot switch, which uses a waterproof microswitch to replace the exposed contact structure, and uses waterproof sealant to seal the joint of the waterproof microswitch and the lead. It does not provide any waterproofing measures in the housing structure of the switch, nor does it provide a specific way of sealing with a waterproof glue. If waterproof glue is applied only at the connecting position of the lead, the danger of electric leakage and false triggering still exists after the waterproof glue is aged or abnormally stripped.

The pedal switch is generally composed of a pedal and a base, wherein one side of the pedal is hinged with the base, and the other side of the pedal can be stepped down or rebounded to control the on-off of the switch. The existing foot switch is fixed at the hinged position of a pedal and a base in a manner of jackscrew, penetrating rod and the like, so that the trouble of assembly is caused.

In addition, the existing foot switch does not contain any feedback component, and an operator does not know whether the switch is turned on or not and when the switch is turned on when the foot switch is pressed, and at the moment, if no other external action (for example, the machine is not normally triggered or no reaction occurs after the trigger) exists, the operator cannot judge whether the machine is in fault or the foot switch per se is in fault.

Similar problems are widely present in the prior art, for example, see further patent documents CN210039958U, CN209675143U, etc.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art exists, the utility model aims to provide a structural design is reasonable, the assembly is easy, have multichannel trigger ability, waterproof performance reliably and can feed back the waterproof foot switch of multichannel of break-make state.

In order to achieve the above object, the present invention provides a multi-way waterproof foot switch, which comprises a base and a pedal, wherein the base comprises a bottom plate 1 and a side wall 2 surrounding the periphery of the bottom plate, and the side wall 2 surrounds the bottom plate 1 and extends upwards to form an inner cavity of the base; the bottom plate, independently or in a state in which it is equipped with other components, fluidly isolates its upper side from its lower side; the side wall 2 has a first continuity of height H1 fluidly isolated from the base plate the internal cavity of the seat over a height H1 from the outside; the inner cavity of the base is provided with a reed pipe fixing chamber 3 and a plurality of switch fixing chambers 8-11, and the fixing chambers are divided by walls arranged on the basis of the bottom plate 1; wherein the wall surrounding the reed switch fixing chamber 3 has a second continuous portion with a height H2 such that the interior of the reed switch fixing chamber 3 is fluidly isolated from the exterior over a height H2.

Preferably, the H1 is not less than 5mm, and the H2 is not less than 3 mm.

The fluid isolation means that, in the case where a fluid (e.g., water) is present on one side, the fluid cannot enter the state of the other side due to the presence of the bottom or the wall, but does not mean that the bottom and the wall must coexist with the fluid.

The number of the plurality of switch holding chambers may be 3, 4, 5, 6,7, 8, preferably 4. The actual number may be selected as desired. When the number of the switch fixing chambers is 4, 0, 1, 2, 3 and 4 switches can be optionally accommodated in the switch fixing chambers. The switch may be of the click type, preferably a microswitch. In order to further improve the waterproof performance, a waterproof microswitch can be selected.

Preferably, a buzzer fixing chamber 14 is also arranged in the inner cavity of the base, and a buzzer 26 is arranged in the buzzer fixing chamber. It will be appreciated that the so-called buzzer may be virtually any sound producing device known in the art, such as a moving coil loudspeaker, a piezoelectric ceramic plate, etc.

Preferably, the walls of the chamber and the chamber are provided with ribs.

Preferably, a reed switch is arranged in the reed switch fixing chamber 3, the reed switch is electrically connected with a lead, and the reed switch and the joint of the reed switch and the lead are sealed in the reed switch fixing chamber 3 by waterproof pouring sealant; the magnet 28 is arranged on the inner side of the pedal, and the position of the magnet 28 corresponds to the position of the reed pipe.

Preferably, a threaded hole column is arranged on the bottom plate 1 and is adjacent to the switch fixing chamber, and threaded holes in the threaded hole column are blind holes with closed bottoms.

Further preferably, the number of the switch fixing chambers (8-11) is more than 3, and switches (20-23) are optionally fixed in the switch fixing chambers (8-11); switch pressing pieces 27 are arranged on the outer sides of the switch fixing chambers (8-11), the switch pressing pieces 27 are provided with through holes which are respectively corresponding to the screw hole columns (4, 6, 7) and allow screws to penetrate through, and the switch pressing pieces 27 are detachably fixed on the base 1 by screws, so that the switch pressing pieces 27 and the corresponding fixing chambers clamp and fix each switch at respective positions; the inner side of the pedal is provided with a switch pressing block 29, and the position of the switch pressing block 29 corresponds to the position of the switch.

Preferably, the bottom of the base is provided with a plurality of fixing screw holes 15, and the fixing screw holes 15 are all blind holes.

Preferably, a wiring hole 17 is formed in the front of the side wall of the base, and a waterproof wire connector 19 is fixed at the wiring hole 17.

Preferably, the side wall of the base, which is close to the wiring hole, is provided with an opening hole oppositely for being connected with the pedal, and the inner side of the side wall above the opening hole connected with the pedal is provided with a chamfer angle which inclines upwards; both sides of the pedal are oppositely provided with pedal switch fixing shafts, and the lower edges of the ends of the pedal switch fixing shafts are provided with downward-inclined chamfers; in the assembled state, the chamfer on the inner side of the side wall and the chamfer on the end part of the foot switch fixing shaft form a buckle structure, and the foot switch fixing shaft is coaxially matched with the opening on the base, so that the pedal is rotatably fixed on the base. The setting of above-mentioned chamfer for form buckle cooperation structure between foot switch fixed axle and the trompil, only need press the footboard lock on the base hard a little when the assembly, can make within the foot switch fixed axle gets into the trompil, be difficult for droing. The structure omits a common jackscrew and rod penetrating structure in the field, greatly reduces the assembly difficulty and saves time.

Preferably, the bottom plate is provided with a spring fixing column, and a spring is fixed on the spring fixing column, so that resilience force is provided for the pedal.

The utility model discloses novel unique structural design has gained following beneficial effect: in actual production, the setting of the reed switch and the switch can be flexibly selected according to the requirements of waterproof grade, the number of control passages and the like on the premise of not changing the overall structure of the foot switch; for example, when the waterproof requirement is high, only a plurality of reed pipes can be arranged, the reed pipe fixing chamber is sealed by waterproof pouring sealant, and multiple waterproof protection is provided through the waterproof design of the base and the sealing of the pouring sealant; when the waterproof requirement is not high, only a plurality of switches can be arranged, so that the reed switch is omitted, and the protection is provided through the waterproof design of the base; when the number of the control paths is more, the reed switches and the first to fourth switches can be integrated into a set of structure, and the number of the control paths is increased. It can be seen that the structure of the utility model provides a great flexibility for the foot switch production that satisfies different demands. The arrangement of the buckling structure between the pedal switch fixing shaft and the opening obviously reduces the assembly difficulty and saves the assembly time. The buzzer can feed back the on or off of the switch, so that an operator can more easily master the line state.

Drawings

FIG. 1 is a schematic perspective view of the multi-way waterproof foot switch base of the present invention;

FIG. 2 is a top view of the multi-way waterproof foot switch base of the present invention;

FIG. 3 is a cross-sectional view of FIG. 2 in the direction A-A;

FIG. 4 is a bottom view of the multi-way waterproof foot switch base of the present invention;

FIG. 5 is a right side view of the multi-way waterproof foot switch base of the present invention;

FIG. 6 is a front view of the multi-way waterproof foot switch base of the present invention;

FIG. 7 is an assembly view of the internal components of the multi-way waterproof foot switch of the present invention;

FIG. 8 is a schematic perspective view of the multi-way waterproof foot switch of the present invention;

fig. 9 is a bottom view of the multi-way waterproof foot switch of the present invention;

FIG. 10 is a schematic view of the assembly of the pedal and the base of the multi-way waterproof foot switch of the present invention;

FIG. 11 is a cross-sectional view of FIG. 10 in the direction B-B;

fig. 12 is a schematic perspective view of the multi-way waterproof foot switch of the present invention.

Wherein the reference numerals refer to the following: 1. the waterproof switch comprises a bottom plate, 2, a side wall, 3, a reed switch fixing chamber, 4, a first threaded hole column, 5, a waterproof pad fixing hole, 6, a second threaded hole column, 7, a third threaded hole column, 8, a first switch fixing chamber, 9, a second switch fixing chamber, 10, a third switch fixing chamber, 11, a fourth switch fixing chamber, 12, a first spring fixing column, 13, a second spring fixing column, 14, a buzzer fixing chamber, 15, a fixing screw hole, 16, a shallow groove, 17, a wiring hole, 18, an opening, 19, a waterproof wire connector, 20, a first switch, 21, a second switch, 22, a third switch, 23, a fourth switch, 24, a first spring, 25, a second spring, 26, a buzzer, 27, a switch pressing sheet, 28, a magnet, 29, a switch pressing block and 30, a pedal switch fixing shaft.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments.

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-6, as a specific form of the multi-way waterproof foot switch base provided by the present invention, the multi-way waterproof foot switch base comprises a bottom plate 1 and a side wall 2 surrounding the bottom plate 1, wherein the side wall 2 surrounds the bottom plate 1 and extends upwards to form an inner cavity of the base. The base plate 1 is isolated fluidically from the underside on its upper side, independently or in its state fitted with other components.

In this embodiment, waterproof pad fixed orifices 5 have been seted up to bottom plate 1 four corners department, and when assembling into foot switch, this downthehole waterproof pad that is fixed with to make foot switch and ground separate the certain distance, the side of waterproof pad closely cooperates with the side of waterproof pad fixed orifices 5, thereby prevents fluid such as water from waterproof pad fixed orifices 5 entering base inner chamber. For this purpose, the waterproof pad should have certain elasticity and friction characteristics, and may be made of rubber, silicone, resin, etc. Of course, the bottom plate 1 can also be provided without the waterproof gasket fixing hole 5, thereby fluidly isolating the upper side thereof from the lower side to a greater extent.

Referring to fig. 6, the side wall 2 has a first continuous portion with a height H1, i.e. there is no opening or through hole in the range from the bottom plate 1 to the height H1 of the side wall 2, and the first continuous portion and the bottom plate 1 isolate the inner cavity of the base in the range of the height H1 from the external fluid, so that the external fluid cannot enter the interior of the base when the liquid level is not higher than H1, thereby achieving the purpose of primary waterproofing. In this embodiment, H1 is 5mm, so that water cannot flow into the base cavity when the ground water depth is below 5 mm. Theoretically, the larger the height of H1, the better the water resistance, but this parameter is set taking into account the overall volume of the foot switch.

Referring to fig. 2 and 3, a reed switch fixing chamber 3, a first switch fixing chamber 8, a second switch fixing chamber 9, a third switch fixing chamber 10, a fourth switch fixing chamber 11, and a buzzer fixing chamber 14 are divided in an inner cavity of the base. The fixed chamber is divided by a wall provided on the base plate 1. In particular, the wall surrounding the reed switch holding chamber 3 has a second continuation of height H2, so that the interior of the reed switch holding chamber 3 is fluidly isolated from the exterior over a height H2. The second continuous part enables the reed pipe and the lead joint of the reed pipe to be completely encapsulated and encapsulated by waterproof pouring sealant when the reed pipe is arranged in the reed pipe fixing chamber 3. In the embodiment, H2 is 3mm, and H2 is mainly selected according to whether the reed switch and the joint of the reed switch and the lead are completely immersed in the waterproof pouring sealant; even water gets into the base inner chamber like this, can not influence the work of tongue tube yet to reach stronger water-proof effects on the whole. The walls of the chambers are also provided with necessary reinforcing ribs and openings for facilitating wiring.

The bottom plate 1 is provided with a first threaded hole column 4, a second threaded hole column 6 and a third threaded hole column 7 for fixing a switch pressing sheet, and the first threaded hole column 4, the second threaded hole column 6 and the third threaded hole column 7 are arranged adjacent to the first switch fixing chamber 8, the second switch fixing chamber 9, the third switch fixing chamber 10 and the fourth switch fixing chamber 11. In order to maintain the waterproof property of the bottom plate 1, the screw holes in the screw hole columns are blind holes with closed lower parts. The blind hole can be set as a blind hole during injection molding, and can also be processed into a through hole firstly, and then one side or the middle part of the blind hole is sealed by dispensing, welding and other modes, so that the blind hole is formed substantially.

The bottom plate 1 is provided with a first spring fixing column 12 and a second spring fixing column 13 for fixing a spring.

Referring to fig. 4, the bottom of the base is provided with a plurality of fixing screw holes 15 for fixedly connecting the base with other components, for example, a plurality of foot switches are connected with a fixing plate to form a foot switch assembly. For waterproof, the fixing screw holes 15 are all blind holes, and the processing and forming manner thereof is as described above. Shallow grooves 16 can also be arranged at the bottom of the base for fixing labels, nameplates and the like.

Referring to fig. 5, a wiring hole 17 for fixing a waterproof wire connector 19 is formed in the front of the side wall of the base.

Referring to fig. 6, the side wall of the base near the wiring hole 17 is provided with openings 18 for connecting the pedal.

The lower edges of the wiring holes 17 and the openings 18 have a distance of at least H1 from the bottom plate 1, thereby ensuring that the side wall 2 forms the first continuous portion with the height H1.

Referring to fig. 7-12, as a specific form of the multi-way waterproof foot switch provided by the present invention, it comprises the above-mentioned base and other necessary or optional mechanical components (pedal, spring, etc.) and electrical components (switch, reed switch, etc.).

Referring to fig. 7, the assembly of the internal components of the multi-way waterproof foot switch is shown. Two reed pipes are fixed in the reed pipe fixing chamber 3. The number of the reed switches is not limited, and more than two reed switches can be arranged for realizing multi-path control; under the condition that only one path of control is needed, only one reed switch can be arranged; in the case where strict waterproofing is not required, the reed switch may not be provided, and the trigger control may be realized only by the first to fourth switches described above. After the reed pipe is connected with a lead, the reed pipe and the lead joint are completely encapsulated in the reed pipe fixing chamber 3 through waterproof encapsulating glue, so that higher-level waterproof is realized. Compared with the method of only using waterproof glue to be smeared at the joint of the lead, the waterproof failure problem caused by aging and falling of the glue does not exist when the pouring sealant is used for packaging. A first switch 20, a second switch 21, a third switch 22 and a fourth switch 23 are fixed in the first switch fixing chamber 8, the second switch fixing chamber 9, the third switch fixing chamber 10 and the fourth switch fixing chamber 11, respectively. Generally, the switch is a microswitch; in order to improve the waterproof performance, a microswitch with waterproof performance can also be selected. The switch pressing piece 27 is arranged outside the switch fixing chamber, and clamps and fixes each switch at a respective position with the corresponding fixing chamber. The first switch, the second switch, the third switch and the fourth switch are optional, namely whether each switch is arranged or not can be selected according to actual needs, and therefore greater flexibility of product forms is provided. The switch presser 27 is provided with through holes allowing penetration of screws corresponding to the first, second and third screw posts 4,6 and 7, respectively, so that the switch presser 27 can be detachably fixed with screws. A waterproof wire connector 19 is arranged at the wiring hole 17. The waterproof wire connector 19 can be a wire harness fixer with waterproof capability, and leads are connected with each switch, the reed pipe and the buzzer and then directly led out through the fixer; the waterproof connector 19 may be a connector base having waterproof capability, in which case a wire connects each switch, reed switch and buzzer to the connector base, which in turn electrically connects each switch, reed switch and external connection cable by means of waterproof mechanical engagement (e.g., male-female engagement, threaded engagement, etc.).

The first spring 24 and the second spring 25 are arranged on the first spring fixing post 12 and the second spring fixing post 13, so that resilience force is provided for the pedal. When the pedal is depressed, the spring compresses; when the pedal is released, the pedal is lifted relative to the base under the action of the resilience force of the spring.

A buzzer 26 is provided in the buzzer-holding chamber 14 to provide an audible indication to the operator when the pedal is depressed.

Referring to fig. 8-11, the pedal structure of the multi-way waterproof foot switch is shown. The pedal is provided with anti-skid lines for increasing friction force. A plurality of magnets 28 and a plurality of switch pressing blocks 29 are arranged on the inner side of the pedal, the positions of the magnets 28 correspond to the positions of the reed pipes, and the positions of the switch pressing blocks 29 correspond to the positions of the first to fourth switches. By "positional correspondence" is meant: under the condition that the pedal is pressed, the magnet 28 can provide a magnetic field with enough strength for the reed switch to be conducted, and the switch pressing block 29 can interfere with the movable parts of the first switch, the second switch and the fourth switch to cause the switch state to be changed (for example, the common contact is disconnected from the normally closed contact and communicated with the normally open contact); in the case of pedal lift, the magnetic field of magnet 28 is insufficient to turn the reed switch on and off, and switch crimp block 29 does not interfere with the moving parts of the first through fourth switches, thereby resetting the switches (e.g., common contact is open to normally open contact and closed contact is open).

Referring to fig. 6, 10 and 11, the base is provided with an opening 18 opposite to the side wall close to the wiring hole 17 for connecting with the pedal, and the inner side of the side wall above the opening 18 connected with the pedal is provided with an upward-inclined chamfer; the two sides of the pedal are oppositely provided with a pedal switch fixing shaft 30, and the lower edge of the end part of the pedal switch fixing shaft 30 is provided with a downward-inclined chamfer; in the assembled state, the chamfers on the inner sides of the side walls and the chamfers on the ends of the foot switch fixing shaft 30 form a snap-fit structure, and the foot switch fixing shaft 30 is coaxially matched with the opening 18 on the base, so that the pedal is rotatably fixed on the base.

Fig. 12 shows a specific complete structure (assembled state) of the multi-way waterproof foot switch.

The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical personnel in the field are right according to the above contents of the present invention.

Claims (9)

1. A waterproof foot switch of multichannel which characterized in that includes: the base comprises a bottom plate (1) and a side wall (2) surrounding the periphery of the bottom plate (1), wherein the side wall (2) surrounds the bottom plate (1) and extends upwards to form an inner cavity of the base; the bottom plate (1) is isolated from the underside by fluid, independently or in a state in which it is equipped with other components; the side wall (2) has a first continuity of height H1 fluidly isolated from the base plate (1) the internal cavity of the seat over a height H1 from the outside; the inner cavity of the base is respectively provided with a reed pipe fixing chamber (3) and a plurality of switch fixing chambers (8-11), and the fixing chambers are divided by walls arranged on the basis of the bottom plate (1); wherein the wall surrounding the reed switch fixation chamber (3) has a second continuation of height H2 such that the interior of the reed switch fixation chamber (3) is fluidly isolated from the exterior over a height H2; the H1 is not less than 5mm, the H2 is not less than 3 mm.

2. The multi-way waterproof foot switch of claim 1, wherein: a buzzer fixing chamber (14) is also arranged in the inner cavity of the base, and a buzzer (26) is arranged in the buzzer fixing chamber.

3. The multi-way waterproof foot switch of claim 1, wherein: a reed switch is arranged in the reed switch fixing chamber (3), the reed switch is electrically connected with a lead, and the reed switch and the joint of the reed switch and the lead are sealed in the reed switch fixing chamber (3) by waterproof pouring sealant; and a magnet (28) is arranged on the inner side of the pedal, and the position of the magnet (28) corresponds to the position of the reed pipe.

4. The multi-way waterproof foot switch of claim 1, wherein: and the bottom plate (1) is provided with screw hole columns (4, 6 and 7) adjacent to the switch fixing chambers (8-11), and screw holes in the screw hole columns are blind holes with closed bottoms.

5. The multi-way waterproof foot switch of claim 4, wherein: the number of the switch fixing chambers (8-11) is more than 3, and switches (20-23) are optionally fixed in the switch fixing chambers (8-11); a switch pressing piece (27) is arranged on the outer side of the switch fixing chamber (8-11), the switch pressing piece (27) is provided with through holes which are respectively corresponding to the screw hole columns (4, 6, 7) and allow screws to penetrate, the switch pressing piece (27) is detachably fixed on the screw hole columns (4, 6, 7) by screws, and therefore the switch pressing piece (27) and the corresponding fixing chamber clamp and fix the switch at respective positions; a switch pressing block (29) is arranged on the inner side of the pedal, and the position of the switch pressing block (29) corresponds to the position of the switch.

6. The multi-way waterproof foot switch of claim 1, wherein: the bottom of base is equipped with a plurality of fixed screw holes (15), fixed screw hole (15) are the blind hole.

7. The multi-way waterproof foot switch of claim 1, wherein: the wiring device is characterized in that a wiring hole (17) is formed in the front of the side wall of the base, and a waterproof wire connector (19) is fixed at the wiring hole (17).

8. The multi-way waterproof foot switch of claim 7, wherein: the side wall of the base, which is close to the wiring hole (17), is oppositely provided with an opening (18) used for being connected with the pedal, and the inner side of the side wall above the opening (18) connected with the pedal is provided with a chamfer angle which inclines upwards; both sides of the pedal are oppositely provided with pedal switch fixing shafts (30), and the lower edge of the end part of each pedal switch fixing shaft (30) is provided with a downward-inclined chamfer; in the assembled state, the chamfer on the inner side of the side wall and the chamfer on the end part of the foot switch fixing shaft (30) form a buckling structure, and the foot switch fixing shaft (30) is coaxially matched with the opening (18) on the base, so that the pedal is rotatably fixed on the base.

9. The multi-way waterproof foot switch of claim 1, wherein: the pedal is characterized in that spring fixing columns (12, 13) are arranged on the bottom plate (1), and springs (24, 25) are fixed on the spring fixing columns (12, 13) and provide resilience force for the pedal.

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