CN107478307A

CN107478307A - A kind of gravity sensor

Info

Publication number: CN107478307A
Application number: CN201710854631.3A
Authority: CN
Inventors: 王茂; 吴强; 闫川海
Original assignee: CHONGQING YUANWANG LOGISTIC Co Ltd
Current assignee: CHONGQING YUANWANG LOGISTIC Co Ltd
Priority date: 2017-09-20
Filing date: 2017-09-20
Publication date: 2017-12-15

Abstract

The present invention provides a kind of gravity sensor, including housing, symmetrical mounting groove is offered on the upper surface of housing, the mounting groove includes the cable trough, switch accepting groove and guide chute being sequentially communicated, microswitch is placed with switch accepting groove, and the shell fragment of microswitch tilts through guide chute, the binding post of microswitch is located in cable trough；The bellmouth of insertion is further opened with the middle part of housing, slidable touch pole is provided with the bellmouth, and the circumference of touch pole is provided with the contact being slidably matched with guide chute, touch pole is pressurized to move up exports electric signal after the shell fragment deformation for forcing the switch on microswitch to be subject to presses by signal wire.Overall structure is simple, compact, and cable trough, switch accepting groove and guide chute are offered on housing, and making microswitch vertically-mounted, shell fragment does not stress, remain unchanged for a long period of time shape, can guarantee that the elastic force of shell fragment, so as to effectively avoid the error brought in itself, accuracy of detection and the sensitivity of sensor are improved.

Description

A kind of gravity sensor

Technical field

The present invention relates to sensor technical field, and in particular to a kind of gravity sensor.

Background technology

With microswitch to be arranged vertically, touch pole is stressed directly in shell fragment touch pole in existing gravity sensor On, the pressure of shell fragment compression load is big, and long-term use easily causes shell fragment deformation so that under whole gravity sensor sensitivity Drop, influences to use, and touch pole is arranged vertically with microswitch so that the stroke of touch pole is short, causes gravity sensor to make With the life-span it is low, reaction it is insensitive, complicated.

The content of the invention

For the deficiency in the presence of prior art, the invention provides a kind of gravity sensor, solves existing heavy The problem of force snesor service life is low, reaction is insensitive, complicated.

To achieve the above object, present invention employs following technical scheme：A kind of gravity sensor, including housing, institute State and symmetrical mounting groove offered on the upper surface of housing, the mounting groove include be sequentially communicated cable trough, switch accepting groove and Guide chute, described switch in accepting groove is placed with microswitch, and the shell fragment of microswitch tilts through guide chute, fine motion The binding post of switch is located in cable trough；The bellmouth of insertion is further opened with the middle part of the housing, is provided with the bellmouth Slidable touch pole, and the circumference of touch pole is provided with the contact being slidably matched with guide chute, the touch pole is pressed to Upper movement forces the shell fragment deformation that the switch on microswitch is subject to by signal wire to export electric signal after pressing.

In use, the signal wire of gravity sensor is connected with alarm, and gravity is adjusted according to vehicle load and passed The suspension height of sensor, collect in the process that vehicle is reprinted, with the weight increase of goods, whole vehicle can produce downward shifting It is dynamic, moved up so that the touch pole of gravity sensor is pressurized, when weight reaches certain value, the contact compressing on touch pole The shell fragment of microswitch, and switch is pressurized, so that microswitch exports electric signal to alarm, inform that reprinting reaches default Value, so can effectively avoid the duplication of labour, the also use to vehicle plays a protective role.

Compared to prior art, the present invention has the advantages that：

1st, overall structure is simple, compact, cable trough, switch accepting groove and guide chute is offered on housing, and make micro- Dynamic switch is vertically-mounted, and touch pole is arranged vertically with shell fragment so that the stroke of touch pole lengthens, and reduces the stress of shell fragment, shape Diminish, can guarantee that the elastic force of shell fragment, so as to effectively avoid error in itself that bring, improve the accuracy of detection of sensor and sensitive Degree；

2nd, it is engaged provided with bellmouth with touch pole, contact area can be reduced so that touch pole can be cleverer when sliding It is quick, and the contact on touch pole can be oriented to touch pole and reliably press shell fragment, it is further ensured that sensitivity and can By property.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention；

Fig. 2 is the structural representation of inventive shell；

Fig. 3 is Fig. 2 upward view.

In figure, housing 1, microswitch 2, bottom 3, convex column 31, touch pole 4, mounting groove 11, cable trough 111, switch are received Tank 112, guide chute 113, bellmouth 12, fastener hole 13, annular protrusion 14, loss of weight slotted eye 15, side segmental arc 151, long segmental arc 152nd, short arc segments 153, spacing preiection 16, crawl slotted eye 17.

Embodiment

The present invention is described further below in conjunction with the accompanying drawings.

As shown in Fig. 1~Fig. 2, a kind of gravity sensor of the present invention, including housing 1 and be engaged in housing 1 Bottom 3, symmetrical mounting groove 11 is offered on the upper surface of the housing 1, the mounting groove 11 includes the cable trough being sequentially communicated 111st, accepting groove 112 and guide chute 113 are switched, and the width for switching accepting groove 112 is more than cable trough 111 and guide chute 113 width, and fillet structure is provided with transition seamed edge, the drawbacks of machined burrs being avoided to bring.In switch accepting groove Microswitch 2 is placed with 112, and the shell fragment of microswitch 2 tilts through guide chute 113, the binding post of microswitch 2 In cable trough 111；And the lower surface of bottom 3 is provided with two symmetrical convex columns 31, and the position of convex column 31 with Switch accepting groove 112 on housing 1 is corresponding, and when bottom 3 and the fastening of housing 1, convex column 31 can compress microswitch 2, Avoid causing the false touch of microswitch 2 to touch or damage in moving process.The bellmouth of insertion is further opened with the middle part of housing 1 12, the bellmouth 12 is interior to be provided with slidable touch pole 4, and the circumference of touch pole 4 is provided with and receives what chamber was slidably matched with shell fragment Contact, the touch pole 4, which is pressurized to move up after the shell fragment deformation for forcing the switch on microswitch 2 to be subject to presses, passes through signal Line exports electric signal.

In actual use, gravity sensor is used as detection part, typically can be with controller or alarm Etc. being used cooperatively.Gravity sensor is arranged in the equipment for needing to detect stress deformation, and adjusts installation site, when When carrying promotes the movement of touch pole 4 so that the shell fragment of microswitch 2 is pressurized, and touch switch is connected, and microswitch 2 exports telecommunications Number alarm or controller are arrived, so as to be effectively controlled to weight, avoid the duplication of labour.

In order that bottom 3 preferably coordinates with housing 1, as shown in Fig. 1~Fig. 2, it is provided with the upper surface of housing 1 upward Raised annular protrusion 14, the bottom 3 are provided with the ledge structure being engaged with annular protrusion 14；In the upper surface of housing 1 On offer multiple fastener holes 13 on same circumference, the endoporus circumference of fastener hole 13 is provided with helicitic texture, and Also the mounting hole to match with fastener hole 13 is provided with bottom 3, is tensed bottom 3 and housing 1 by screw.Pass through annular protrusion 14 with the cooperation of ledge structure, overall structure when mounted can fast positioning, improve installation effectiveness.

As shown in Fig. 2 two loss of weight slotted eyes 15 are offered on the upper surface of housing 1, and two loss of weight slotted eyes 15 are with peace Symmetrical centered on tankage 11, loss of weight slotted eye 15 includes the side segmental arc 151 concentric with adjacent fastener hole 13, in addition to cone Shape hole 12 concentric short arc segments 153 and long segmental arc 152, and set respectively between side segmental arc 151 and short arc segments 153 and long segmental arc 152 There is arc transition structure.Loss of weight is carried out to housing 1, can avoid producing extra deformation and increased error when using, and During manufacture, the use of raw material can be reduced, manufacturing cost is reduced, the various segmental arcs of setting, the structural strength of housing 1 can ensured On the premise of, subtract counterweight to greatest extent.

As shown in figure 3, shape identical with loss of weight slotted eye 15, position and lightening grooves are also offered on the lower surface of housing 1 The relative crawl slotted eye 17 in hole 15, and the depth for capturing slotted eye 17 is less than the depth of loss of weight slotted eye 15.On the one hand can be further Loss of weight is carried out to the counterweight of housing 1, is on the other hand to be easy to crawl, stress when mounted for convenience.

As shown in Fig. 1~Fig. 2, be provided with spacing preiection 16 on the circumference of housing 1, and the lower surface of spacing preiection 16 with The lower surface of housing 1 flushes, and is easy to carry out spacing, positioning to overall when mounted.

Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this Among the right of invention.

Claims

A kind of 1. gravity sensor, it is characterised in that：Including housing (1), offered on the upper surface of the housing (1) symmetrical Mounting groove (11), the mounting groove (11) include the cable trough (111), switch accepting groove (112) and guide chute being sequentially communicated (113) microswitch (2), is placed with the switch accepting groove (112), and the shell fragment of microswitch (2) tilts through guiding Chute (113), the binding post of microswitch (2) are located in cable trough (111)；It is further opened with passing through in the middle part of the housing (1) Logical bellmouth (12), is provided with slidable touch pole (4) in the bellmouth (12), and the circumference of touch pole (4) provided with The contact that guide chute (113) is slidably matched, the touch pole (4) be pressurized the mobile switch forced on microswitch (2) by Shell fragment deformation press after electric signal exported by signal wire.
A kind of 2. gravity sensor according to claim 1, it is characterised in that：Also include the bottom being engaged with housing (1) Cover (3), the lower surface of the bottom (3) is provided with two symmetrical convex columns (31), and the position of convex column (31) and housing (1) the switch accepting groove (112) on is corresponding.
A kind of 3. gravity sensor according to claim 2, it is characterised in that：The upper surface of the housing (1) is provided with The annular protrusion (14) to raise up, the bottom (3) are provided with the ledge structure being engaged with annular protrusion (14).
A kind of 4. gravity sensor according to Claims 2 or 3, it is characterised in that：The housing (1) is opened up positioned at same Multiple fastener holes (13) on circumference, the mounting hole to match with fastener hole (13) is also provided with the bottom (3).
A kind of 5. gravity sensor according to claim 1, it is characterised in that：Opened up on the upper surface of the housing (1) There are two loss of weight slotted eyes (15), two loss of weight slotted eyes (15) are symmetrical centered on mounting groove (11).
A kind of 6. gravity sensor according to claim 5, it is characterised in that：The loss of weight slotted eye (15) include with it is adjacent The concentric side segmental arc (151) of fastener hole (13), in addition to the short arc segments (153) concentric with bellmouth (12) and long segmental arc (152), arc transition is passed through between the side segmental arc (151) and short arc segments (153) and long segmental arc (152).
A kind of 7. gravity sensor according to claim 6, it is characterised in that：Also opened on the lower surface of the housing (1) Provided with the crawl slotted eye (17) that shape is identical with loss of weight slotted eye (15), position and loss of weight slotted eye (15) are relative, and capture slotted eye (17) depth is less than the depth of loss of weight slotted eye (15).