CN101555981B

CN101555981B - Lubricating gun

Info

Publication number: CN101555981B
Application number: CN2009100115748A
Authority: CN
Inventors: 高德财
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-18
Filing date: 2009-05-18
Publication date: 2012-05-30
Anticipated expiration: 2029-05-18
Also published as: CN101555981A

Abstract

The invention discloses a lubricating gun, which uses the compressed air for pushing the piston motion of a lubricating cylinder to supply oil for a plunger pump of a spearhead and supplement the pressure of supplying the oil to the plunger pump at any time; the oil supply pressure is not effected by the lubrication amount in the lubricating cylinder so that the lubricant in the lubricating cylinder is completely used; the adopted technical proposal is that the lubricating gun comprises a spearhead, a gun breech, a plunger pump hand handle and a connecting device used for connecting the spearhead and the gun breech; the spearhead is provided with the plunger pump, a nozzle tip, a nozzle tip retaining valve, and an oil-taking port spliced with a lubricating cylinder output port; the gun breech is provided with a compressed air cell which is provided with an air inlet; the connection of the compressed air cell and the lubricating cell is provided with a sealing glue ring; the casing of the bottom of the lubricating cylinder is connected with the wall of the compressed air cell by the sealing glue ring in a sealing way; the oil-taking port is provided with the sealing glue ring; and the air inlet is communicated with an air supply device by an air-supply pipe.

Description

A kind of grease gun

Technical field

The present invention relates to a kind of grease compressor, especially a kind of grease gun for machine or equipment lubrication.

Background technique

A kind of common tool of maintaining machinery of grease gun, at present, mostly the grease gun of selling on the market is manual filling when in grease gun, loading butter; Time-consuming, effort and unhygienic, CN2577091 discloses the novel grease gun of a kind of quick charge of oil, and this grease gun can use the good Grease tube of can in advance; Adopt the mode of changing Grease tube to realize in grease gun, loading butter, still, this grease gun relies on the elastic force of spring to promote the plunger pump fuel feeding of the interior piston motion of Grease tube to the rifle head; The elastic force of spring can reduce along with the minimizing of butter in the Grease tube gradually, exists Grease tube to use the later stage, to the underpressure of plunger pump fuel feeding; Butter in the Grease tube is prone to residual, uses halfway shortcoming, and; This oil gun need be provided with a pull bar for pressure spring, and when being full of butter in the Grease tube, pull bar will stretch out very long distance to the oil gun rear; Increase the length of grease gun, be unfavorable for the small space operation.

Summary of the invention

The technical problem that invention will solve:

A kind of grease gun is provided, and it is the plunger pump fuel feeding of rifle head that this grease gun adopts pressurized air to promote the Grease tube piston motion, replenishes the pressure to the plunger pump fuel feeding at any time, and charge oil pressure is not influenced by the butter amount in the Grease tube, and the butter in the Grease tube is used thoroughly.

The technological scheme that the technical solution problem is taked:

A kind of grease gun; Comprise rifle head, gun breech, plunger pump handle and be used to connect the connection set of rifle head and gun breech; On said rifle head, be provided with plunger pump, oil nozzle, oil nozzle one-way valve, with the oil-feed interface that the Grease tube oil outlet is pegged graft, be provided with compressed air cell at gun breech, said compressed air cell is provided with suction port; Be provided with sealed rubber ring at compressed air cell and Grease tube joint; The Grease tube bottom enclosure is tightly connected through sealed rubber ring and compressed air cell wall, is provided with sealed rubber ring at the oil-feed interface, and said suction port links through air supply pipe and air feeder.

As improvement of the present invention:

Establish the outlet valve of discharges compressed air chamber compressed air on the compressed air cell.

As further improvement of the present invention:

Said air feeder is the pump that is integrated on the plunger pump handle.

Said pump comprises the piston rod that the plunger pump handle constitutes, the pump piston that is contained in piston-rod end; The sleeve of the end sealing that cooperates with the pump piston seal; Closed end at sleeve is provided with inlet hole and one-way valve; On the pump piston, be provided with exhaust port and one-way valve, exhaust port is through one-way valve and air supply pipe UNICOM.

Be provided with pin in pump piston end face and sleeve air inlet nose end, said pin is made up of ⊥ type head and the ⊥ shape groove that matches with ⊥ shape head.

As preferred version of the present invention:

The connection set of said connection rifle head and gun breech comprises connecting rod, the sliding sleeve that matches with connecting rod and is used for fixing sliding sleeve and the locking device of connecting rod relative position, and said sliding on the connecting rod slided, and the rifle head is fixedly connected with connecting rod, and gun breech is fixedly connected with sliding sleeve.

Said locking device is the cam of a band spanner, and cam is connected with pitman shaft, and the outer rim that cam contacts with sliding sleeve is the helical line type.

Pocketed springs on the connecting rod between rifle head and sliding sleeve.

The filler opening of said plunger pump is arranged on the end face of plunger pump pumping cylinder, at filler opening one-way valve and one-way valve position-limited needle is set.

On the plunger of plunger pump, be provided with closure gasket groove, setting-in sealed rubber ring in closure gasket groove.

Beneficial effect:

In the present invention, compressed air cell is set, promotes the Grease tube piston motion with pressurized air owing to adopted at gun breech; Adjust the pressure to the plunger pump fuel feeding through replenishing air pressure, make the influence that does not receive butter amount in the Grease tube to the pressure of plunger pump fuel feeding, the butter amount more also can keep enough pressure to the plunger pump fuel feeding in Grease tube; Make in the Grease tube butter use thoroughly, not residual; And overcome because the butter of different qualities or in the influence of the difference of different seasonal butter stickiness to the oil gun using effect, simultaneously, owing to replace spring to promote the Grease tube piston motion with air pressure; Cancelled the pull bar in the common grease gun; Length does not increase after making grease gun of the present invention load butter, and use, easy to carry more helps in the small space operation; Owing on compressed air cell, be provided with the outlet valve of discharges compressed air chamber compressed air; When changing Grease tube, discharge the compressed air cell compressed air through outlet valve earlier, avoided when changing Grease tube that instantaneous loss of pressure causes gas and greasy dirt splash in the compressed air cell; Because to have adopted air feeder is this technological means of pump that is integrated on the plunger pump handle, make grease gun air feeder of the present invention not need to take up space in addition, volume is identical with common grease gun, and more convenient when being the compressed air cell supplementary pressure; Owing to be provided with pin, prevent that sleeve skids off from the plunger pump handle when not needing supplementary pressure, use, easy to carry in pump piston end face and sleeve air inlet nose end; Owing to adopted connecting rod, the sliding sleeve that matches with connecting rod and locking device to constitute the connection set of rifle head and gun breech; The cam that adopts a band spanner is as locking device; And pocketed springs on the connecting rod between rifle head sliding sleeve makes grease gun of the present invention more convenient than the disclosed grease gun of CN2577091 when changing Grease tube; Because the filler opening of plunger pump is arranged on the end face of plunger pump pumping cylinder; At filler opening one-way valve and one-way valve position-limited needle are set, compare with the common grease gun that oil inlet hole is arranged on the pumping cylinder wall, grease gun of the present invention butter when plunger is pulled back can be full of the plunger pump pumping cylinder rapidly; Shortened the oil suction stroke of plunger in the plunger pump; The plunger pump handle moves by a small margin and also can pump butter, more helps the small space operation, in pressing oily process because without plunger sealing oil inlet hole; With the situation of the equidistant stroke of common grease gun plunger under increased by 1/3rd effective travel, single pump oil mass increases by 1/3rd; Owing on the plunger of plunger pump, be provided with closure gasket groove, setting-in sealed rubber ring in closure gasket groove makes that plunger and pumping cylinder sealing effect are better, and when avoiding the oiling resistance big, butter overflows along plunger and pumping cylinder gap.

Description of drawings

Fig. 1 is the structural representation of grease gun working state of the present invention;

Fig. 2 is the structural representation of grease gun of the present invention pump lock state when being unkitted Grease tube;

Fig. 3 is a grease gun plunger pump filler opening partial enlarged drawing of the present invention;

Fig. 4 is a grease gun plungers pump plunger partial enlarged drawing of the present invention;

Fig. 5 is a grease gun pump pin ⊥ shape schematic representation of the present invention;

Fig. 6 is a grease gun pump pin ⊥ groove schematic representation of the present invention.

Embodiment

Fig. 1, Fig. 2 show agent structure of the present invention, and a kind of grease gun comprises that rifle head 3, gun breech 27, said rifle head 3 and gun breech 27 are through connecting rod 7, be connected with sliding sleeve 9 that connecting rod 7 matches; Sliding sleeve 9 slides on connecting rod 7, and rifle head 3 is fixedly connected with connecting rod 7, and gun breech 27 is fixedly connected with sliding sleeve 9; Near the gun breech end locking device is set at connecting rod 7, make Grease tube oil outlet and bottom can be respectively with the rifle head on oil-feed interface 4 closely contact with gun breech, said locking device is the cam 10 of a band spanner 8; Cam 10 is connected by 7 on axle 11 and connecting rod, and the outer rim that cam 10 contacts with sliding sleeve 9 is the helical line type, when depressing spanner 8, drives cam 10 and rotates around axle 11; Cam 10 is pushed sliding sleeve 9 to rifle head direction, and sliding sleeve 9 drives gun breeches and moves to rifle head direction, makes to be installed in that Grease tube is locked between rifle head and gun breech; Gun breech moves after can be automatically when spanner 8 is opened, and will be installed in that Grease tube separates fast between rifle head and gun breech, and pocketed springs 6 on the connecting rod between rifle head and sliding sleeve; Elastic force through spring is pushed gun breech to have made things convenient for the taking-up of Grease tube away from rifle head direction to, the oil-feed interface 4 that on said rifle head 3, is provided with plunger pump, oil nozzle 1, pegs graft with Grease tube 5 oil outlets; Oil nozzle 1 is through oil nozzle one-way valve 2 and plunger pump oil outlet UNICOM, and oil-feed interface 4 is provided with sealed rubber ring 16, and plunger pump provides power by plunger pump handle 15; Be provided with compressed air cell 29 at gun breech 27; Promote Grease tube pistons 17 with the pressurized air in the compressed air cell 29 and move, the butter in the Grease tube is expressed to the filler opening of plunger pump, on compressed air cell 29, be provided with suction port 12; Be provided with sealed rubber ring 26 at gun breech and Grease tube 5 joints; The Grease tube bottom enclosure is tightly connected through sealed rubber ring 26 and compressed air cell wall, and said suction port 12 links through air supply pipe 13 and air feeder, establishes the outlet valve 28 of discharges compressed air chamber compressed air on the compressed air cell 29; When changing Grease tube, discharge the compressed air cell compressed air through outlet valve 28 earlier; Avoided when changing Grease tube that instantaneous loss of pressure causes gas and greasy dirt splash in the compressed air cell, said air feeder is the pump that is integrated on the plunger pump handle 15, said pump comprise plunger pump handle 15 formations piston rod, be contained in the pump piston 18 of piston-rod end; The sleeve 22 of the end sealing that cooperates with the pump piston seal; Closed end at sleeve is provided with inlet hole 25 and one-way valve 24, on pump piston 18, is provided with exhaust port 20 and one-way valve 19, and exhaust port 20 is through one-way valve 19 and air supply pipe 13 UNICOMs; Be embodied as compressed air cell pressurization through 22 to-and-fro motion of the sleeve on the pump, be provided with pin at the end face and the sleeve 22 air inlet nose ends of pump piston 18.

Like Fig. 5, shown in Figure 6; Said pin is made up of ⊥ type head 21 and the ⊥ shape groove 23 that matches with ⊥ shape 21; In the time need not pressurizeing, push sleeve 22 to pump piston 18; Make ⊥ type head 21 get into angle of ⊥ shape groove 23 back rotations, ⊥ type head 21 is stuck in the ⊥ shape groove 23, realize the fixing of sleeve 22.

As shown in Figure 1, the filler opening of plunger pump is arranged on the end face of plunger pump pumping cylinder.

As shown in Figure 3, at filler opening one-way valve 30 and one-way valve position-limited needle 31 are set.

As shown in Figure 4, on the plunger 14 of plunger pump, be provided with closure gasket groove 33, setting-in seal ring 32 in closure gasket groove 33; Because the filler opening of plunger pump is arranged on the end face of plunger pump pumping cylinder, at filler opening one-way valve and one-way valve position-limited needle are set, butter can be full of the plunger pump pumping cylinder rapidly when plunger is pulled back; Shortened the oil suction stroke of plunger in the plunger pump; The plunger pump handle moves by a small margin and also can pump butter, more helps the small space operation, in pressing oily process because without plunger sealing oil inlet hole; With the situation of the equidistant stroke of common grease gun plunger under increased by 1/3rd effective travel, single pump oil mass increases by 1/3rd; Owing on the plunger of plunger pump, be provided with closure gasket groove, setting-in seal ring in closure gasket groove makes that plunger and pumping cylinder sealing effect are better, and when avoiding the oiling resistance big, butter overflows along plunger and pumping cylinder gap.

Claims

1. grease gun; Comprise rifle head (3), gun breech (27), plunger pump handle (15) and be used to connect the connection set of rifle head (3) and gun breech (27); The oil-feed interface (4) that on said rifle head (3), is provided with plunger pump, oil nozzle (1), oil nozzle one-way valve (2), pegs graft with Grease tube (5) oil outlet; It is characterized in that: be provided with compressed air cell (29) at gun breech (27); Said compressed air cell (29) is provided with suction port (12), is provided with sealed rubber ring (26) in compressed air cell (29) and Grease tube (5) joint, and the Grease tube bottom enclosure is tightly connected through sealed rubber ring (26) and compressed air cell wall; Be provided with sealed rubber ring (16) at oil-feed interface (4), said suction port (12) links through air supply pipe (13) and air feeder.

2. a kind of grease gun according to claim 1 is characterized in that: the outlet valve (28) of establishing discharges compressed air chamber compressed air on the compressed air cell (29).

3. a kind of grease gun according to claim 2 is characterized in that: said air feeder is for being integrated in the pump on the plunger pump handle (15).

4. a kind of grease gun according to claim 3; It is characterized in that: said pump comprises the piston rod that plunger pump handle (15) constitutes, the pump piston (18) that is contained in piston-rod end; The sleeve (22) of the end sealing that cooperates with the pump piston seal; Closed end at sleeve is provided with inlet hole (25) and one-way valve (24), on pump piston (18), is provided with exhaust port (20) and one-way valve (19), and exhaust port (20) is through one-way valve (19) and air supply pipe (13) UNICOM.

5. a kind of grease gun according to claim 4 is characterized in that: end face and sleeve (22) air inlet nose end at pump piston (18) are provided with pin, and said pin is made up of ⊥ type head (21) and the ⊥ shape groove (23) that matches with ⊥ shape head (21).

6. according to each described a kind of grease gun of claim 1 to 5; It is characterized in that: the connection set of said connection rifle head (3) and gun breech (27) comprises connecting rod (7), the sliding sleeve (9) that matches with connecting rod (7) and is used for fixing sliding sleeve and the locking device of connecting rod relative position; Said sliding sleeve (9) is gone up at connecting rod (7) and is slided; Rifle head (3) is fixedly connected with connecting rod (7), and gun breech (27) is fixedly connected with sliding sleeve (9).

7. a kind of grease gun according to claim 6 is characterized in that: said locking device is the cam (10) of a band spanner (8), and cam (10) is connected with connecting rod (7) axle, and the outer rim that cam (10) contacts with sliding sleeve (9) is the helical line type.

8. a kind of grease gun according to claim 7 is characterized in that: the connecting rod (7) between rifle head (3) and sliding sleeve (9) is gone up pocketed springs (6).

9. a kind of grease gun according to claim 1 is characterized in that: the filler opening of said plunger pump is arranged on the end face of plunger pump pumping cylinder, at filler opening one-way valve (30) and one-way valve (30) position-limited needle (31) is set.

10. a kind of grease gun according to claim 9 is characterized in that: on the plunger (14) of plunger pump, be provided with closure gasket groove (33), setting-in sealed rubber ring (32) in closure gasket groove (33).