CN2191347Y

CN2191347Y - High-efficient grease gun with pull rod without sliding-off

Info

Publication number: CN2191347Y
Application number: CN 94206165
Authority: CN
Inventors: 李万和
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-25
Filing date: 1994-03-25
Publication date: 1995-03-08
Anticipated expiration: 2004-03-25

Abstract

The utility model discloses a high-efficient grease gun with a pull rod without sliding-off, which is an improvement for the existing greaser. The draw rod adopts four prism shape, and a pair of mutually symmetrical clamping grooves are arranged on both upper side faces of the draw rod. When the clamping grooves aim at cap to cause the draw rod to rotate about 90DEG, the two clamping grooves can be respectively clamped into the front and the rear rims of a through holes of the cap; thus, the draw rod and a piston are fixed, the draw rod can not slip, and the phenomenon that the piston pulls out the grease which is just filled into a grease gun because of the draw rod slipping can be avoided in the grease filling process. The utility model has the advantages of convenient operation, trustiness, sanitation, cleanness, time saving and high efficiency.

Description

High-efficient grease gun with pull rod without sliding-off

The utility model belongs to the grease gun field, is the grease gun that a kind of pull bar can slippage.

Grease gun is by cylindrical cylinder component, inserts in the cylindrical cylinder component and piston assembly that can slide and compressed-oil system three parts composition within it.Piston in one end of pull bar and the cylinder body is connected, the cap that the other end passes cylinder body one end links to each other with handle, on this cap that cylinder body one end passes by pull bar, an opening is arranged, accompanying drawing 5 has provided the above-mentioned end cap of prior art and the schematic representation of opening, this opening is to be formed by the manhole that two crossing diameters do not wait, the pull bar of prior art is a cylindrical body, on the side of pull bar, the circular draw-in groove of a circle is arranged along the side.When piston slides in cylinder body, pull bar places in the large through-hole of opening, passes above-mentioned cap, when needing the dress butter, lay down the end cap and the compressed-oil system of the cylinder body the other end, firmly to the oblique handle of the small through hole direction of opening, pull bar is walked outside cap, when above-mentioned draw-in groove is parallel with cap then, draw-in groove enters small through hole, pull bar is stuck on the cap, and piston is fixed, so that adorn butter from the other end of cylinder body in grease gun.Such structure exists a shortcoming, and promptly pull bar is tiltedly to be stuck on the cap.The operator is in the process of dress butter, have one careful slightly, pull bar will slide into from the small through hole on the cap on the large through-hole, a spring is arranged between cylinder body inner carrier and cap, this moment, piston can be pushed to the other end of cylinder body fast by spring, and the butter in the grease gun of just packing into is extruded grease gun under the effect of spring, cause waste and pollution, unhygienic.The operator is in order to prevent that in the process of dress butter, the pull bar slippage must careful operation, influences operating rate, and working efficiency is poor.Even but the operator is careful again, the phenomenon of pull bar slippage still often occurs.Therefore, operator compare worried.

In addition, the cylinder body of existing grease gun has a step cutting pattern at the end inwall that is connected an end with compressed-oil system.The effect of this step cutting pattern is when dress butter in grease gun, is smearing butter with hand and is scraping on step cutting pattern, butter is scraped compressed into cylinder body.Owing to be provided with this step cutting pattern, increased the manufacturing process of cylinder body, correspondingly increased the cost of grease gun.

The purpose of this utility model provides a kind of at the dress efficient grease gun that pull bar can slippage during butter.

To achieve these goals, the utility model improves existing grease gun, it is still by cylindrical cylinder component, insert in the cylindrical cylinder component and piston assembly that can slide and compressed-oil system three parts composition within it, compressed-oil system is fixed on the screwed end cap, this end cap is by on the end that is threaded in pipe, piston is positioned at pipe and can slides within it, the other end of pipe is by the cap that is being threaded, the core of cap has a through hole can allow pull bar pass, one end of pull bar is connecting piston, and the other end is connected with handle, between inherent piston of pipe and the cap spring is arranged.Pull bar of the present utility model be shaped as quadrangular, former and later two faces of pull bar are two substantially parallel planes, the side of pull bar is two arc surfaces, on each side, have a draw-in groove, these two draw-in grooves are symmetry substantially, the shape of the through hole on the above-mentioned cap is similar to the cross section of pull bar, form by four edges, two limits, front and back are two substantially parallel straight lines, article two, side is a camber line, the distance on two limits, front and back of its through hole will guarantee that when the above-mentioned handle of pulling, piston slides to cap one side, when two draw-in grooves on the pull bar side are concordant with cap, the angle of rotating tension bar 90 degree, two draw-in grooves can be stuck on two limits, front and back of through hole, so that pull bar and piston are fixed, rotating tension bar or revolution pull bar 90 are spent again, two draw-in grooves can be deviate from two limits, front and back of through hole, at this moment unclamp handle, and piston slides to end cap one side under the effect of above-mentioned spring.

Because the shape of pull bar of the present utility model is selected quadrangular for use, on its side, have the draw-in groove of a pair of symmetry, the shape of the through hole on the cap that pull bar passes is similar to the cross section of pull bar, two above-mentioned draw-in grooves can be stuck on two of the front and back of through hole, if the draw-in groove on the pull bar is deviate from, must make pull bar rotate 90 degree, otherwise pull bar can slippage, and in the process to grease gun dress butter, if not the rotating tension bar of having a mind to, pull bar is to rotate 90 degree.Just say that also the operator is when operation, as long as pull bar is stuck on the cap, just can courageously adorn butter relievedly, can butter not released the phenomenon of grease gun because of the pull bar slippage causes piston, the waste and the pollution of butter have been reduced, what cylinder body adopted in addition is a pipe, has saved the step cutting pattern of cylinder ends.But operator's hand takes the butter bag directly butter to be clamp-oned in the grease gun during dress butter, and finger no longer directly contacts butter, has accelerated charge of oil speed, both be convenient to operation, sanitation and hygiene, time-saving and efficiency again, the manufacture cost that has subtracted grease gun falls in the manufacturing process that has also reduced cylinder body.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is an embodiment's of the present utility model structural representation;

Fig. 2 is the structural representation of embodiment's pull bar and handle;

Fig. 3 is the sectional drawing of embodiment's pull bar;

Fig. 4 is the schematic representation of embodiment's cap;

Fig. 5 is the schematic representation of grease gun cap in the prior art.

Fig. 1 has provided an embodiment of the present utility model.It is by cylindrical cylinder component, insert in the cylindrical cylinder component and piston assembly that can slide and compressed-oil system composition within it, compressed-oil system (1) is fixed on the screwed end cap (2), end cap (2) is by on the end that is threaded in pipe (3), piston (4) is positioned at pipe (3) and can slides within it, the other end of pipe (3) is by the cap (5) that is being threaded, the core of cap (5) has a through hole (6), this through hole (6) can allow pull bar (7) pass, one end of pull bar (7) is connecting piston (4), the other end of pull bar (7) is connected with handle (8), between inherent piston of pipe (3) (4) and the cap (5) spring (9) is arranged.Fig. 2 and Fig. 3 have provided the structural representation of above-mentioned pull bar (7), pull bar (7) be shaped as quadrangular, its former and later two faces (71) are two substantially parallel planes, two sides (72,73) be two arc surfaces, on side (72) and side (73), have the draw-in groove (75 of two basic symmetries, 76), Fig. 4 is the shape schematic representation of above-mentioned cap (5), the shape of the through hole (6) on the cap (5) is similar to the cross section of pull bar (7), this through hole (6) is by two parallel limits (61 of front and back, 62) and two camber lines (63,64) form, the front and back two edges (61 of its through hole (6), 62) distance between will guarantee, when pulling above-mentioned handle (8), piston (4) slides to cap (5) one sides, two draw-in grooves (75 on pull bar (7) side, when 76) concordant with cap (5), the angle of rotating tension bar (7) 90 degree, draw-in groove (75) and draw-in groove (76) can be stuck in two limits (61, front and back of through hole (6), 62) on, so that pull bar (7) and piston (4) are fixing, rotating tension bar (7) or revolution pull bar (7) 90 are spent again, draw-in groove (75,76) can deviate from two limits (61, front and back of through hole (6), 62), at this moment unclamp handle (8), piston (4) can slide to end cap (2) one sides by the effect of spring (9).

Claims

A kind of pull bar can slippage efficient grease gun by cylindrical cylinder component, insert in the cylindrical cylinder component and piston assembly that can slide and compressed-oil system composition within it, compressed-oil system (1) is fixed on the screwed end cap (2), end cap (2) is by on the end that is threaded in pipe (3), piston (4) is positioned at pipe (3) and can slides within it, the other end of pipe (3) is by the cap (5) that is being threaded, the core of cap (5) has a through hole (6) can allow pull bar (7) pass, one end of pull bar (7) is connecting piston (4), the other end of pull bar (7) is connected with handle (8), between inherent piston of pipe (3) (4) and the cap (5) spring (9) is arranged, the quadrangular that is shaped as that it is characterized in that pull bar (7), former and later two faces (71) of pull bar (7) are two substantially parallel planes, two sides (72 of pull bar (7), 73) be two arc surfaces, on side (72) and side (73), have the draw-in groove (75 of two basic symmetries, 76), the shape of the through hole (6) on the cap (5) is similar to the cross section of pull bar (7), this through hole (6) is by two parallel limits (61 of front and back, 62) and two sides (63 forming of two camber lines, 64) form, the front and back two edges (61 of its through hole (6), 62) distance will guarantee between, when pulling above-mentioned handle (8), piston (4) slides to cap (5) one sides, two draw-in grooves (75 on pull bar (7) side, when 76) concordant with cap (5), the angle of rotating tension bar (7) 90 degree, draw-in groove (75) and draw-in groove (76) can be stuck in two limits (61, front and back of through hole (6), 62) on, so that pull bar (7) and piston (4) are fixing, rotating tension bar (7) or revolution pull bar (7) 90 are spent again, two draw-in grooves (75,76) can deviate from two limits (61, front and back of through hole (6), 62), at this moment unclamp handle (8), piston (4) can slide to end cap (2) one sides by the effect of spring (9).