CN2608961Y

CN2608961Y - Multifunctional high precision electronic scale

Info

Publication number: CN2608961Y
Application number: CN 03220577
Authority: CN
Inventors: 时一新; 蒋延庆
Original assignee: Mettler Toledo Changzhou Weighing Equipment Co Ltd
Current assignee: Ohaus Instruments Shanghai Co Ltd
Priority date: 2003-03-21
Filing date: 2003-03-21
Publication date: 2004-03-31
Anticipated expiration: 2013-03-21

Abstract

The utility model relates to a multi function high precision electronic scale, which is composed of a stand, a sensor, a bracket, a sensor signal processor, an upper lid, a connecting board and a limit mechanism; wherein the sensor is fixed on the connecting board and connected to the bracket together with the limit mechanism; the limit mechanism is arranged on the connecting board and the bracket so as to poof over loading; the bracket also has a bolt hole with an axial guiding groove; center of the bracket has a locking bolt with a position boss and is embedded in the bolt hole along the axial guiding groove; the locking bolt and corresponding position of the connecting board has a groove mouth; the locking bolt in a working position moves in an axis hole of the connecting board; once be locked, the locking bolt and the groove mouth are clamped on the connecting board axis hole, and the boss is clamped and connected to an inner end surface of the bracket bolt hole; bottom of the locking bolt has a hook. When the scale is pulled or cut, the locking bolt restricts the bracket and the connecting board, thus realizing a protection toward the sensor. The utility model is simple in structure, convenient in operation; as integrating a platform scale and a hook scale, the utility model expend utilization range.

Description

The multifunction high-precision electronic scales

Technical field

The utility model has related to a kind of electricity scale especially relates to a kind of electronic scales of multifunction high-precision.

Background technology

The scale body is accurate measurement instrument, and is overweight for preventing to be claimed thing at work, generally is provided with on carriage and the web joint that is connected sensor and fixes or adjustable caging bolt, when preventing that the scale body from transshipping and damaging sensor.But the scale body is in transportation and move in the process and also can be subjected to external force, and what often produce between carriage and web joint is tensile force or/and shearing force, in case tensile force is or/and shearing force when big, can be that sensor is damaged equally.At present, a part of scale body is that the dual-side at carriage and web joint is connected with the L shaped plate that can be interlocked respectively, is provided with certain clearance between two plates, when tensile force or/and shearing force surpasses when setting guarantor's scope the fastening part of two plates contact, and playing a protective role.But the limiting and protecting device of this structure; owing to also have a certain clearance, therefore in transportation or move that carriage and web joint also have certain activity in the process, can not be spacing fully to sensor; reduce the precision and the serviceable life of scale body, especially be not suitable for high-precision electronic scales.Secondly, adopt limiting plate, not only increased parts, and complex process, and the corresponding manufacturing cost that increased.

Summary of the invention

The purpose of this utility model provides a kind of scale body and is being subjected to tensile force or/and during shearing force; by lock pin spacing to carriage and web joint, realize that it is simple in structure to sensor protection; using easy to operately, and is the multifunction high-precision electronic scales of one with platform balance and hang hook steelyard collection.

The utility model is that the technical scheme that achieves the above object is: a kind of multifunction high-precision electronic scales, comprise support, be fixed on sensor on the web joint, be connected carriage, sensor signal treating apparatus, loam cake with sensor and be located at web joint and carriage on antioverloading position-limit mechanism, it is characterized in that: also be provided with the pin-and-hole of tape spool on the carriage to guide groove, the lock pin that the middle part has locating convex block guide groove vertically is inserted in the pin-and-hole, lock pin and web joint axis hole opposite position are provided with notch, and the lock pin of working position moves axially in the web joint axis hole; Its notch of lock pin during locked position is connected on the web joint axis hole, and its projection is connected on the inner face of carriage pin-and-hole, and the bottom of lock pin has suspension hook.

The advantage that the utility model is implemented after the technique scheme is: the first, because a lock pin is housed, rotate different positions by lock pin on carriage, the position limitation protection function when realizing scale body inoperative and the function of scale body operate as normal.When electronic scales is transporting and moving in the process; rotate lock pin; projection on the lock pin and notch are stuck on the axis hole of the inner face of carriage axis hole and web joint; therefore no matter the scale body is subjected to tensile force or/and during shearing force; can fixedly connected carriage with web joint by lock pin; realization so can guarantee the precision of scale body, prolongs the working life of scale body to the protection of sensor.When the notch of lock pin was thrown off the axis hole of web joint, then lock pin can move axially along the pin-and-hole of web joint, makes scale body operate as normal, and operation is very easy in use.The second, the utility model is owing to only adopt a lock pin that sensor is carried out position limitation protection, and its position limiting structure is simple, with also being convenient to processing and fabricating, can reduce production costs.Three, be provided with suspension hook bottom the lock pin of the present utility model, can be by this suspension hook to being claimed that thing measure, collection platform balance and hang hook steelyard are one, good combination property can enlarge usable range.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of the utility model lock pin when being placed on unlocking condition.

Fig. 2 is the Z-Z cut-open view of Fig. 1.

Fig. 3 is the structural representation of the utility model lock pin when being placed on blocking.

Fig. 4 is the Z1-Z1 cut-open view of Fig. 3.

Embodiment

Multifunction high-precision electronic scales shown in Fig. 1～4, comprise support 8, the loam cake 1 at the leg 9 of support 8 bottoms and support 8 tops, the web joint 5 and signal processing apparatus that sensor output signal is handled is contained in

support

8,4 of sensors are fixed on the web joint 5, one side of carriage 2 is connected with sensor 4, on web joint 5 and carriage 2, antioverloading position-limit mechanism is housed, this position-limit mechanism constitutes by being arranged on caging bolt 7 on the web joint 5 and the projection 6 on the carriage 2, perhaps constitute by being installed in caging bolt on the carriage 2 and the projection on the web joint 5, this position-limit mechanism can also be that carriage 2 and web joint 5 upper limit bolts constitute, and regulates spacing gap by caging bolt 6.Also be provided with the pin-and-hole of tape spool on the carriage 2 to guide groove, the top of pin-and-hole has counterbore or limited block etc., to lock pin 3 axial limitings, the lock pin 3 that the middle part has a locating convex block 3-4 is inserted in the pin-and-hole along the axial channel of pin-and-hole, rotate lock shaft 3, be connected to the inner face of pin-and-hole and can not come off by this locating convex block 3-4, connect simple and convenient.Lock pin 3 passes the axis hole on the web joint 5; lock pin 3 is provided with notch 3-2 with web joint 5 axis hole opposite positions; see Fig. 1,2; when electronic scales is in the working position; lock pin 3 can move axially along the axis hole of web joint 5; if overload, the projection on then logical caging bolt 6 and the web joint 5 carries out position limitation protection.See Fig. 3,4, when electronic scales was in the lock state, the notch 3-2 of lock pin 3 just was connected in web joint 5 axis holes, and its projection 3-4 is connected on the pin-and-hole inner face of carriage 2 simultaneously, and carriage 2 is fixedlyed connected with web joint 5, with the protection sensor.The bottom of lock pin 3 of the present utility model has suspension hook 3-3, therefore the function of electronic scales is expanded as hang hook steelyard, and usable range is wide.

For ease of rotating lock pin 3, see Fig. 1,3, the top of lock pin 3 is provided with the projection or the groove 3-1 that can indicate and operate, and other mark 2-1, the 2-2 that also is provided with corresponding pinning and work of carriage 2 pin-and-holes, by the diverse location that lock pin 3 rotates, realize the function of locking and work.

For lock pin 3 can be put in the pin-and-hole that just is installed in carriage 2, can in the rotation and the course of work, can not produce excessive gap again and rock with pin-and-hole, also have locating ring on the top of projection 3-4.Join by this locating ring and pin-and-hole, make lock pin 3 keep stable and connect.

Claims

1, a kind of multifunction high-precision electronic scales, comprise support (8), be fixed on the sensor (4) on the web joint (5), be connected carriage (2) with sensor (4), the sensor signal treating apparatus, loam cake (1) and be located at web joint (5) and carriage (2) is gone up antioverloading position-limit mechanism, it is characterized in that: also be provided with the pin-and-hole of tape spool on the carriage (2) to guide groove, the lock pin (3) that the middle part has locating convex block (3-4) guide groove vertically is inserted in the pin-and-hole, lock pin (3) is provided with notch (3-2) with web joint (5) axis hole opposite position, and the lock pin of working position (3-2) moves axially in web joint (5) axis hole; Its notch of lock pin during locked position (3) (3-2) is connected on web joint (5) axis hole, and its projection (3-4) is connected on the inner face of carriage (2) pin-and-hole, and the bottom of lock pin (3) has suspension hook (3-3).

2, multifunction high-precision electronic scales according to claim 1 is characterized in that: the top of described lock pin (3) is provided with projection or the groove (3-1) that can indicate and operate.

3, multifunction high-precision electronic scales according to claim 1 and 2 is characterized in that: the top of lock pin (3) projection (3-4) also has locating ring.

4, multifunction high-precision electronic scales according to claim 1 and 2 is characterized in that: described carriage (2) pin-and-hole side is provided with mark (2-1), (2-2) with lock pin (3) projection or corresponding pinning of groove (3-1) and work.