CN201516824U - Overload limiting apparatus - Google Patents

Overload limiting apparatus Download PDF

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Publication number
CN201516824U
CN201516824U CN2009200309147U CN200920030914U CN201516824U CN 201516824 U CN201516824 U CN 201516824U CN 2009200309147 U CN2009200309147 U CN 2009200309147U CN 200920030914 U CN200920030914 U CN 200920030914U CN 201516824 U CN201516824 U CN 201516824U
Authority
CN
China
Prior art keywords
weighing spring
assembly
pneumatic valve
valve control
control valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009200309147U
Other languages
Chinese (zh)
Inventor
刘福云
吕兴润
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Heavy Duty Truck Group Jinan Power Co Ltd
China National Heavy Duty Truck Group Taian Wuyue Special Vehicle Co Ltd
Original Assignee
China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China National Heavy Duty Truck Group Jinan Power Co Ltd filed Critical China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority to CN2009200309147U priority Critical patent/CN201516824U/en
Application granted granted Critical
Publication of CN201516824U publication Critical patent/CN201516824U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an overload limiting apparatus, including a weighing spring assembly, a pressure indicating instrument, a pneumatic control valve control assembly, and a buzzing alarm, wherein a weighing spring adjusting bolt is mounted on the upper portion of the weighing spring assembly, a contact reed is fixed at the lower part; an adjusting bolt is mounted on the pneumatic control valve control assembly; the pneumatic control valve control assembly controls a two-position three way control valve; the buzzing alarm is controlled to open by a contact type pressure relay. The utility model has beneficial effects of using the pressure indicating instrument to display the weight of the upload part, restraining the hoisting by cutting the air channel, namely not lifting if the upload part is overloaded and simultaneously alarming, to basically control the overload; directly using physical deformation and the mechanical movement to automatically meet the movement requirement without additional control devices. The overload limiting apparatus can be installed on motorcar chassis or as a single use, which has simple structure, low cost , convenient and practical use, and wide popularization and application.

Description

A kind of limit overload device
Technical field
The utility model relates to a kind of overload device, specifically a kind of limit overload device that is applied on all kinds of engineering automobiles.
Background technology
Along with the quickening of urban construction, increasing engineering is shuttled back and forth among the city with car, and for pursuing actual effects, overload becomes the bigger dumping car of inevitable choice, especially load carrying ability.For the identification of this class overload automobile, just adopt the method for range estimation as a rule, can not fundamentally solve overload problems like this, buried great hidden danger for traffic accident again.
The utility model content
Technical problem to be solved in the utility model provides a kind of limit overload device at the existing in prior technology defective, be a kind of simple in structure, limit overload device easy to use can be applicable to all kinds of engineering automobiles, especially on the dumping car by air pressure control lifting.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of limit overload device, comprise weighing spring assembly, pressure indicating instrument, Pneumatic valve control assembly, buzzer siren, the weighing spring adjustable bolt is equipped with on described weighing spring assembly top, bottom fixed contact reed; On the described Pneumatic valve control assembly adjustable bolt is housed; Described Pneumatic valve control assembly connects a two-position three way Pneumatic valve; Described buzzer siren connects one and is used for controlling the contact pressure relay of opening buzzer siren.
Described weighing spring assembly can be formed with many springs, have sufficient intensity to bear and can restore to the original state after top weight and weight are eliminated.
Described weighing spring adjustable bolt is used to adjust the initial tension of spring of weighing spring assembly, to set the tonnage of limit overload.
Make pressure indicating instrument and the work of buzzer siren switch on after the reed weight distortion of described contact, and after weight is eliminated, can restore to the original state fully.
Described two-position three way Pneumatic valve is installed in the control gas circuit lifting passage, suppresses the lifting action by blocking gas channels.
A kind of limit overload device of the present utility model compared with prior art has following beneficial effect:
The beneficial effects of the utility model: show upward dress part weight with the pressure indicating instrument, go up dress with the buzzer siren prompting and partly exceed nominal payload; Be installed in the lifting gas channels, suppress lifting by blocking gas channels, the last dress part that promptly overloaded is just lifted not, reports to the police fundamentally control overload simultaneously; Directly utilize the automatic execution requirement of physical deformation and mechanical movement, need not other operating control; Can be installed on the car chassis or separately and use, simple in structure, with low cost, convenient and practical, suitable applying.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation under the utility model effect under pressure.
1. weighing spring adjustable bolts among the figure, 2. weighing spring assembly, 3. contact reed, 4. pressure indicating instrument, 5. adjustable bolt, 6. Pneumatic valve control assembly, 7. two-position three way Pneumatic valve, 8. buzzer siren, 9. contact pressure relay.
The specific embodiment
Shown in figure, a kind of limit overload device comprises weighing spring assembly 2, pressure indicating instrument 4, Pneumatic valve control assembly 6, buzzer siren 8, and weighing spring adjustable bolt 1 is equipped with on described weighing spring assembly 2 tops, bottom fixed contact reed 3; On the above-mentioned Pneumatic valve control assembly 6 adjustable bolt 5 is housed; Two-position three way Pneumatic valve 7 of above-mentioned Pneumatic valve control assembly 6 controls; Above-mentioned buzzer siren 8 is opened by 9 controls of a contact pressure relay.
Described as pressure-loaded behind weighing spring assembly 2 upper surfaces, contact reed 3 deformation in compressions that link to each other with weighing spring assembly 2 bottoms, make pressure indicating instrument 4 and buzzer siren 8 switch on work, simultaneously Pneumatic valve control assembly 6 moves downward and blocks the lifting gas channels and suppress the lifting action.So just can fundamentally limit overload, eliminate the overload hidden peril of accident.
At first weighing spring assembly 2 and contact reed 3 are linked together during manufacturing, adjust the initial tension of spring of weighing spring assembly 2, to set the tonnage of limit overload with weighing spring adjustable bolt 1; Pressure indicating instrument 4, Pneumatic valve control assembly 6 and buzzer siren 8 are fixed on the bottom of contact reed 3, it reserves spacing will guarantee that contact reed 3 is after (N reaches the tonnage of setting the limit overload) distortion under the effect of pressure N, can make pressure indicating instrument 4 and buzzer siren 8 switch on work, Pneumatic valve control assembly 6 moves downward control two-position three way Pneumatic valve 7, blocks the lifting gas channels; Adjustable bolt 5 is used for adjusting the stroke of Pneumatic valve control assembly 6, so that effectively control two-position three way Pneumatic valve 7.

Claims (3)

1. limit overload device for one kind, comprise weighing spring assembly (2), pressure indicating instrument (4), Pneumatic valve control assembly (6), buzzer siren (8), it is characterized in that: weighing spring adjustable bolt (1) is equipped with on described weighing spring assembly (2) top, bottom fixed contact reed (3); Adjustable bolt (5) is housed on the described Pneumatic valve control assembly (6); Described Pneumatic valve control assembly (6) connects a two-position three way Pneumatic valve (7); Described buzzer siren (8) connects one and is used for controlling the contact pressure relay (9) of opening buzzer siren (8).
2. a kind of limit overload device according to claim 1 is characterized in that: the available many springs of described weighing spring assembly (2) are formed.
3. a kind of limit overload device according to claim 1 and 2 is characterized in that: described two-position three way Pneumatic valve (7) is installed in the control gas circuit lifting passage.
CN2009200309147U 2009-07-31 2009-07-31 Overload limiting apparatus Expired - Fee Related CN201516824U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200309147U CN201516824U (en) 2009-07-31 2009-07-31 Overload limiting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200309147U CN201516824U (en) 2009-07-31 2009-07-31 Overload limiting apparatus

Publications (1)

Publication Number Publication Date
CN201516824U true CN201516824U (en) 2010-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200309147U Expired - Fee Related CN201516824U (en) 2009-07-31 2009-07-31 Overload limiting apparatus

Country Status (1)

Country Link
CN (1) CN201516824U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642753A (en) * 2012-04-16 2012-08-22 如东宏信机械制造有限公司 Pneumatic elevator
CN104139733A (en) * 2013-05-07 2014-11-12 诸城福田汽车科技开发有限公司 Overload protection system and automobile with same
CN106932063A (en) * 2015-12-31 2017-07-07 天津市华衡伟业称重系统股份有限公司 A kind of truck scale with overload warning function
CN107727225A (en) * 2017-10-30 2018-02-23 四川都照照明科技有限公司 A kind of weight-limiting apparatus with overweight prompt facility

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642753A (en) * 2012-04-16 2012-08-22 如东宏信机械制造有限公司 Pneumatic elevator
CN102642753B (en) * 2012-04-16 2015-06-10 如东宏信机械制造有限公司 Pneumatic elevator
CN104139733A (en) * 2013-05-07 2014-11-12 诸城福田汽车科技开发有限公司 Overload protection system and automobile with same
CN104139733B (en) * 2013-05-07 2016-02-10 诸城福田汽车科技开发有限公司 Overload protective device and the automobile with this protection system
CN106932063A (en) * 2015-12-31 2017-07-07 天津市华衡伟业称重系统股份有限公司 A kind of truck scale with overload warning function
CN107727225A (en) * 2017-10-30 2018-02-23 四川都照照明科技有限公司 A kind of weight-limiting apparatus with overweight prompt facility

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100630

Termination date: 20140731

EXPY Termination of patent right or utility model