AT140871B - Piston pump for liquid spraying, operated by a hand lever, especially for plant protection. - Google Patents

Piston pump for liquid spraying, operated by a hand lever, especially for plant protection.

Info

Publication number
AT140871B
AT140871B AT140871DA AT140871B AT 140871 B AT140871 B AT 140871B AT 140871D A AT140871D A AT 140871DA AT 140871 B AT140871 B AT 140871B
Authority
AT
Austria
Prior art keywords
piston
tilting
hand lever
plant protection
operated
Prior art date
Application number
Other languages
German (de)
Inventor
Franz Nechvile
Original Assignee
Franz Nechvile
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 Franz Nechvile filed Critical Franz Nechvile
Application granted granted Critical
Publication of AT140871B publication Critical patent/AT140871B/en

Links

Landscapes

  • Reciprocating Pumps (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Durch einen Handhebel betätigbare Sehubkolbenpumpe für   Fliissigkeitsspritzen,   besonders zum
Pflanzenschutz. 



   Die Erfindung bezieht sich auf Flüssigkeitsspritzen, insbesondere zum Pflanzenschutz, bei welchen der Schubkolben durch einen Handhebel betätigt wird, der ungefähr bei Kolbenmittellage quer zur 
 EMI1.1 
 ist und wobei sich der Kolben beim Saughubende nächst der vom Zylinderkopf gebildeten Kolbenstangengeradführung befindet. 



   Bei solchen Pumpen ist der Kolben in der Nähe seines   Saughubendes schlecht gefuhrt,   weil er und die lose Kolbenstangenführung nahe beieinanderliegen. Bei Beginn des   Druckhubes   des Kolbens entsteht namentlich bei grossem Druck die Tendenz, Kolbenstange und Kolben auf der Griffseite zu kippen, was vom Kipplenker nicht verhindert wird. Die Folge davon ist ein   Undiehtwerden   auch eines sonst dicht haltenden Kolbens. 



   Der Erfindung gemäss werden diese Nachteile dadurch beseitigt, dass der Kipplenker beim Saughubende durch einen in erheblicher Entfernung von seiner Kippachse befindlichen Anschlag des Zylinders gegen Einwärtsschwingen begrenzt ist. 



   Wie die Zeichnung in einem Ausführungsbeispiel zeigt, besteht die Pumpe aus dem Zylinder 7, der Kolbenstange 4 und dem Kolben   1,   der z. B. zwischen zwei Muttern. 5, 6 der Kolbenstange festgeklemmt ist. 
 EMI1.2 
 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Hand lever operated reciprocating piston pump for liquid syringes, especially for
Plant protection.



   The invention relates to liquid syringes, in particular for plant protection, in which the thrust piston is actuated by a hand lever which is approximately transverse to the piston center position
 EMI1.1
 and wherein the piston is next to the piston rod linear guide formed by the cylinder head at the end of the suction stroke.



   In such pumps, the piston is poorly guided near its end of the suction stroke because it and the loose piston rod guide are close to one another. At the beginning of the pressure stroke of the piston, especially with high pressure, there is a tendency to tilt the piston rod and piston on the handle side, which is not prevented by the tilt link. The consequence of this is that even an otherwise tightly holding piston will leak.



   According to the invention, these disadvantages are eliminated in that at the end of the suction stroke the tilting arm is limited against inward swinging by a cylinder stop at a considerable distance from its tilting axis.



   As the drawing shows in one embodiment, the pump consists of the cylinder 7, the piston rod 4 and the piston 1, the z. B. between two nuts. 5, 6 the piston rod is clamped.
 EMI1.2
 

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

<Desc/Clms Page number 2> Saughubende nächst der vom Zylinderkopf gebildeten Kolbenstangen-Geradführung gelegen ist, dadurch gekennzeichnet, dass der Kipplenker (11) beim Saughubende durch einen in erheblicher Entfernung von seiner Kippaehse (12) befindlichen Ansehlag (14) des Zylinders (7) gegen Einwärtssehwingen begrenzt ist, so dass hiedurch bei Beginn des Druckhubes ein griffseitiges Kippen der Kolbenstange (4) bzw. des Kolbens (1) verhindert ist. <Desc / Clms Page number 2> The suction stroke end is located next to the straight piston rod guide formed by the cylinder head, characterized in that the tilting link (11) at the end of the suction stroke is limited against inward swinging by a stop (14) of the cylinder (7) at a considerable distance from its tilting axis (12) This prevents the piston rod (4) or piston (1) from tilting on the handle side at the start of the pressure stroke. 2. Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass am Zylinder ein mit dem Anschlag (14) örtlich vereinigter Führungsansatz (13) für den Kipplenker (11) vorgesehen ist, wobei der Kipplenker EMI2.1 EMI2.2 2. Pump according to claim 1, characterized in that a with the stop (14) locally united guide extension (13) for the tilting arm (11) is provided on the cylinder, wherein the tilting arm EMI2.1 EMI2.2
AT140871D 1932-05-02 1932-05-02 Piston pump for liquid spraying, operated by a hand lever, especially for plant protection. AT140871B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT140871T 1932-05-02

Publications (1)

Publication Number Publication Date
AT140871B true AT140871B (en) 1935-03-11

Family

ID=3641363

Family Applications (1)

Application Number Title Priority Date Filing Date
AT140871D AT140871B (en) 1932-05-02 1932-05-02 Piston pump for liquid spraying, operated by a hand lever, especially for plant protection.

Country Status (1)

Country Link
AT (1) AT140871B (en)

Similar Documents

Publication Publication Date Title
AT140871B (en) Piston pump for liquid spraying, operated by a hand lever, especially for plant protection.
DE736771C (en) Pressurized fluid drive especially for valves and fuel pumps on internal combustion engines
DE818594C (en) Injection pump for internal combustion engines
DE896758C (en) Air chambers on deep pumps
DE539213C (en) Lubricating device, in particular for motor vehicles, consisting of a container with a pump and a line with a dispensing device
DE325143C (en) Automatic pressure switch for pumps with pressure air tanks and a spring-loaded pressure gauge and control piston
DE737211C (en) Feed device on a machine tool with a differential feed piston
DE818503C (en) Fridge
AT139724B (en) Pump without crankshaft for dripping liquids.
AT86540B (en) Pump.
AT87735B (en) Liquid pump for chillers with superheating operation.
DE607144C (en) Hydraulic drive device, especially for brakes and. like
DE647173C (en) Elastic suspension, especially for motor vehicles
DE835996C (en) Agricultural tractor equipped with a compressed air system
AT130451B (en) Plant sprayer, especially for pest control.
DE491206C (en) Steam drive device, in particular for lubricating pumps
DE742785C (en) Device for limiting the speed of motor vehicles
DE423173C (en) Acting according to the indirect control method for keeping steam pressures equal, e.g. B. for heat storage
DE449151C (en) Valveless piston pump, especially for measuring purposes
DE628415C (en) Control device for a hydraulic press pump to turn off the conveyor
CH158032A (en) Fuel pump for internal combustion engines that work together with an accumulator piston.
AT141174B (en) Hand lever pump with plunger-shaped hollow piston for crop protection sprayers.
AT61713B (en) Splash can for oil and the like.
AT111040B (en) Plant sprayer.
DE698759C (en) n, especially tough lubricants