CN208795257U - A kind of instrument with dustproof construction - Google Patents

Abstract

The utility model discloses a kind of instrument with dustproof construction, including meter body, concave part is formed on the meter body top surface, connecting terminal is provided in the concave part, lid is equipped in the concave part upper cover, the lid includes lid main body and dust excluder, the lid main body includes a roof, in the roof two sides, the two side walls of connection and connection two of two side walls are to wall, the dust excluder has the shape for matching the lid, it include in the press strip portion of one end setting in the dust excluder, the end face in the press strip portion and the dust excluder, the batten seat extended along above-mentioned side wall length direction is provided on a side wall of the lid main body, the dust excluder is embedded in the lid main body, its press strip portion is located in the batten seat, dust excluder end face and the lid main body end face.After the utility model is by closeing the lid, the measurement environment at connecting terminal is closed, small signal can be kept more stable to avoid the influence of external environment；And lid lid plays good dust-proof effect when closing.

Description

A kind of instrument with dustproof construction

Technical field

The present invention relates to testing equipment fields, more specifically, are related to a kind of instrument with dustproof construction.

Background technique

Existing detection instrument do not have on connecting terminal lid temperature it is unstable in the case where, small jitter；This It is easy to cause the connection of connecting terminal and external cabling unstable into dust on external wiring terminal, and then influences detection data Accuracy.

Summary of the invention

It is of the invention aiming at the shortcomings in the prior art, provide a kind of instrument with dustproof construction.

The application is achieved by the following technical solution: a kind of instrument with dustproof construction, including meter body, institute It states and is formed with concave part on meter body top surface, be provided with connecting terminal in the concave part, set in the concave part upper cover There is a lid, the lid includes lid main body and dust excluder, and the lid main body includes a roof, connects in the roof two sides Two side walls and connection two of two side walls are to wall, and the dust excluder has the shape for matching the lid, described dust-proof Item includes in the press strip portion of one end setting, the end face in the press strip portion and the dust excluder, the one of the lid main body The batten seat extended along above-mentioned side wall length direction is provided on a side wall, the dust excluder is embedded in the lid main body, Its press strip portion is located in the batten seat, dust excluder end face and the lid main body end face.

In above-mentioned technical proposal, it is provided on described two pairs of walls to the limit base to wall side protrusion, in institute It states and is provided with the first magnet in the limit base of lid main body, be provided in the meter body opposite with first magnet poles The second magnet.

In above-mentioned technical proposal, the connecting terminal includes the conducting sleeve being fixedly connected with meter body, described Conducting sleeve includes internal cavity, at least one set of first through hole is relatively set on the side wall of the conducting sleeve, described It is movably set with a pressing sleeve on conducting sleeve, is provided on the pressing sleeve and the first through hole position corresponding one The second through-hole of group is provided with the spring for pressing sleeve described in fexible bias pressure in the bottom of the conducting sleeve cavity, presses described It is inserted with a bolt in the pin hole of pressing sleeve cylinder lower end setting, waist-shaped hole, the bolt position are provided on the conducting sleeve In in the waist-shaped hole.

In above-mentioned technical proposal, it is provided with a fixed ring below the conducting sleeve, the fixed ring and described leads A socket slot is formed between electric sleeve.

After the invention has the following beneficial effects: the utility model by closeing the lid, by the measurement ring at connecting terminal Border is closed, and small signal can be kept more stable to avoid the influence of external environment；And lid lid plays well when closing Dust-proof effect.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the utility model.

Fig. 2 is the decomposition diagram one of the utility model.

Fig. 3 is the schematic perspective view of support frame.

Fig. 4 is the decomposition diagram two of utility model.

Fig. 5 is the decomposition diagram of lid.

Fig. 6 is the schematic perspective view one of module mounting base.

Fig. 7 is the schematic perspective view two of module mounting base.

Fig. 8 is the schematic perspective view of connecting terminal.

Fig. 9 is the decomposition diagram of connecting terminal.

Figure 10 is the schematic cross-sectional view of connecting terminal.

Specific embodiment

Present invention is further described in detail with specific embodiment with reference to the accompanying drawing: a kind of referring to Fig. 1 to Figure 10 Instrument with dustproof construction, including meter body 1 are formed with concave part 100 on 1 top surface of meter body, described recessed It is provided with connecting terminal 2 in groove portion 100, is equipped with lid 3 in 100 upper cover of concave part, the lid 3 includes 30 He of lid main body Dust excluder 31, the lid main body 30 include a roof 30c, the two side walls 30a in the connection of the two sides the roof 30c and connection Two of two side walls 30a are provided on described two couples of wall 30b to the limit to the side wall 30b protrusion wall 30b Seat 32, the dust excluder 31 have the shape for matching the lid 3, include the press strip in one end setting in the dust excluder 31 Portion 31a, the end face of the press strip portion 31a and the dust excluder 31 are arranged on a side wall 30a of the lid main body 30 There is the batten seat 33 extended along above-mentioned side wall length direction, the dust excluder 31 is embedded in the lid main body 30, press strip Portion 31a is located in the batten seat 33,31 end face of dust excluder and 30 end face of lid main body.

In above structure, in the case where connecting terminal wiring, 3 can be closed the lid, so that surveying after closeing the lid Amount environment is closed, and small signal can be kept more stable to avoid the influence of external environment.In addition, passing through 31 one end of dust excluder Press strip portion 31a push down with connecting terminal 2, this make between 3 end face of connecting terminal 2 and lid formed a flexible contact, keep away Exempt from also to further improve sealing performance while terminal damage.

The first magnet (attached drawing is not shown) is provided in the limit base 32 of the lid main body 30, in the meter body 1 Inside it is provided with second magnet opposite with first magnet poles.In above structure, pass through the first magnet and the second magnet phase Mutually cooperation is adsorbed on lid 3 in meter body 1, avoids lid and falls or lose.

The connecting terminal 2 is arranged by following mode: including a connection terminal module 4, the terminals submodule It is provided with several connecting terminals 2 on block 4, the bottom of connection terminal module 4 is formed with connection-peg 40, connecting terminal 2 and described inserts Connection is formed between connector 40, and the socket slot 200 with the connection-peg 40 cooperation is provided in the meter body 1, it is described (detection circuit and the detection circuit of existing tester are no different detection circuit in socket slot 200 and meter body 1, in the application In will not be repeated here) connection, when connection-peg 40 and socket slot 200 connect, the connecting terminal 2 and the inspection in meter body 1 Slowdown monitoring circuit forms connection.

It is provided on the notch slot 200 for providing the module mounting base 5 of guiding for the connection terminal module 4, The module slot 50 for connection terminal module 4, the module slot 50 and the instrument master are provided in the module mounting base 5 Concave part 100 on body 1 is connected to, and the two sides of the module slot 50 is provided with fixation hole 51, in the connection terminal module 4 Upper end is provided with flange 40.

When the connection terminal module 4 is inserted into the module slot 50 in the module mounting base 5, the terminals submodule Eye-splice slot 200 in connection-peg 40 and meter body 1 on block 4 forms connection.At this point, being passed through by fastener 300 described convex Edge 40 is simultaneously screwed into the fixation hole 51, to realize fixation of the connection terminal module 4 in the module slot 50.

In order to enable the connection terminal module 4 will not be inserted into the module slot 50 with the direction of mistake, in institute The two sides for stating connection terminal module 4 are provided with guiding rib 41, are provided on the side wall of the module slot 50 and guiding rib 41 Matched guiding rib slot 52, only when the connection terminal module 4 is inserted into the module slot 50 with being correctly oriented When, the guiding rib 41 can just enter in the guiding rib slot 52, be inserted when stating connection terminal module 4 with the direction of mistake When entering in the module slot 50, the guiding rib 41 is then directly stopped by the two side walls of the module slot 50, so that It can not be inserted into.

It is recessed inwardly to form escape groove 53 in 5 bottom of module mounting base, the eye-splice slot 200 in the meter body 1 In the escape groove 53, it is provided at the middle part of the escape groove 53 and supports 54.

A support frame 6 is rotatably connected in the meter body 1, support frame as described above 6 includes a support frame bottom plate 60, 60 two sides of support frame as described above bottom plate are provided with linking arm 61, and the end of the linking arm 61 is provided with axle bed 61a, in the instrument It is provided with axis hole in main body 1, by plugging a damping shaft 62 in axle bed 61a, the damping shaft 62 is located at the meter body 1 On axis hole in.Support frame as described above bottom plate 60 includes the connection of the narrow contracting of two enlarged end 60a of widened both ends 60a and connection An end face of portion 60b, the interconnecting piece 60b are arc-shaped.Support frame as described above 6 is integrally formed, the two of support frame as described above bottom plate 60 Notch 60c is also set up on the 60a of end.

In above structure, entire meter body 1 is placed in the plane by support frame 6, and can be by rotating instrument Main body 1 adjusts the angle of display screen in meter body 1；This makes the reading for entire instrument more convenient；In addition, needing When moving the meter body, it may be convenient to hand is held on the interconnecting piece 60b of support frame bottom plate 60, at this time interconnecting piece 60 arc-shaped end faces and the cooperation of user's hand shape, can effectively reduce the sense of discomfort in grip attachment portion.

The connecting terminal 2 includes a conducting sleeve 20 being fixedly connected with 1 upper connecting terminal module 4 of meter body, The conducting sleeve 20 includes internal cavity, is relatively set at least one set of first through hole on the side wall of the conducting sleeve 20 20a is movably set with a pressing sleeve 21 on the conducting sleeve 20, is provided with and described first on the pressing sleeve 21 The corresponding one group of second through-hole 21a in the position through-hole 20a.

The spring 22 that sleeve 21 is pressed described in fexible bias pressure is provided in the bottom of 20 cavity of conducting sleeve, described It is inserted with a bolt 25 in the pin hole 21a of pressing 21 lower end of sleeve setting, is provided with waist-shaped hole on the conducting sleeve 20 21a, the bolt 25 are located in the waist-shaped hole 21a, described when the supreme restraining position of 21 upward sliding of pressing sleeve Bolt 25 and the waist-shaped hole 21a are against so that the pressing sleeve 21 can not be deviate from out of conducting sleeve 20.

In above structure, when needing the wiring on connecting terminal 2, the pressing sleeve 21 is pressed first, so that pressing The second through-hole 21a on sleeve 21 and the first through hole 20a contraposition on conducting sleeve 20, at this time by wiring along first through hole 20a is inserted into the second direction through-hole 21a, then unclamps the pressing sleeve 21, and wiring is pressed in conducting sleeve 20 and pressing Between sleeve 21, and form solid and reliable connection.

The lower section of the conducting sleeve 20 is provided with a fixed ring 23, the fixed ring 23 and the conducting sleeve 20 it Between form a socket slot 24, external sheet connection electrode can be connected by above-mentioned socket slot 24, this to connect in the application The applicability for the component that line terminals 2 connect greatly increases.

The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments.Described in the above embodiment and specification in the application It is the principle of the present invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention.On Changes and improvements are stated to both fall in the range of claimed invention.

Claims (4)

1. a kind of instrument with dustproof construction, including meter body, it is characterised in that: be formed on the meter body top surface Concave part is provided with connecting terminal in the concave part, is equipped with lid in the concave part upper cover, the lid includes lid master Body and dust excluder, the lid main body include a roof, two side walls and connection two side walls in roof two sides connection Two the dust excluder has the shape for matching the lid to wall, include the pressure in one end setting in the dust excluder Item portion, the end face in the press strip portion and the dust excluder are provided on a side wall of the lid main body along above-mentioned The batten seat that side wall length direction extends, the dust excluder are embedded in the lid main body, and press strip portion is located at the batten seat It is interior, dust excluder end face and the lid main body end face.

2. a kind of instrument with dustproof construction as described in claim 1, it is characterised in that: be arranged on described two pairs of walls The oriented limit base to wall side protrusion, is provided with the first magnet in the limit base of the lid main body, in the instrument Second magnet opposite with first magnet poles is provided in main body.

3. a kind of instrument with dustproof construction as described in claim 1, it is characterised in that: the connecting terminal includes one The conducting sleeve being fixedly connected with meter body, the conducting sleeve include internal cavity, on the side wall of the conducting sleeve It is relatively set at least one set of first through hole, a pressing sleeve, the pressing sleeve are movably set on the conducting sleeve On be provided with one group of second through-hole corresponding with the first through hole position, the bottom of the conducting sleeve cavity is provided with bullet Property bias described in press sleeve spring, it is described pressing sleeve lower end setting pin hole in be inserted with a bolt, described Waist-shaped hole is provided on conducting sleeve, the bolt is located in the waist-shaped hole.

4. a kind of instrument with dustproof construction as claimed in claim 3, it is characterised in that: in the lower section of the conducting sleeve It is provided with a fixed ring, forms a socket slot between the fixed ring and the conducting sleeve.