CN208107602U - A kind of hand grease gun - Google Patents

Abstract

The utility model belongs to the technical field of lubricating grease filling devices, in particular to a manual grease gun with simple structure, not easy to oxidize and rust, labor-saving, safe and reliable; it includes an oil storage barrel and a gun cover, and an oil push rod is movable on the gun cover. The gun cover is provided with a drive mechanism for driving the movement of the oil push rod; the drive mechanism includes a sector gear that drives the oil push rod to reciprocate laterally, a planetary gear that drives the sector gear to rotate, and a rack that drives the planet gear to rotate; The planetary carrier of the gear, the planetary pinion arranged in the planetary carrier and inscribed with the inner gear, and the sun gear circumscribed with the planetary pinion, the connecting shaft connected with the sector gear is arranged on the planetary pinion; the rack passes through the pressure rod The mechanism reciprocates horizontally, so that the rack drives the sun gear to rotate; the gun cover is provided with a cover shell, the sun gear is arranged in the cover shell, and one end of the rack passes through the cover shell and extends into the gun cover; A lubricating substance is provided.

Description

A manual grease gun

technical field

The utility model belongs to the technical field of grease filling devices, in particular to a manual grease gun.

Background technique

A grease gun is a hand tool used to grease mechanical equipment. It can be equipped with iron rod (iron gun head) or hose (flat gun head) fuel nozzle. It has the advantages of simple operation, convenient carrying and wide application range, and is an essential tool for the majority of agricultural machinery operators and maintenance centers.

There are different types of grease guns, such as pneumatic grease guns, manual grease guns, pedal grease guns, and electric grease guns. Machinery such as excavators, cranes, and large-scale construction machinery can be more comprehensively and effectively improved by using manual high-pressure grease guns. efficiency.

For manual grease guns on the market, when in use, point the gun head at the mechanical equipment, and squeeze the grease onto the mechanical equipment to be filled by opening and closing the control handle. There are some problems, such as uneven force during filling or fatigue at the end of use, resulting in uneven filling of lubricating grease, low filling efficiency, and laborious filling; and during the filling process, the handle It is easily rusted by the environment, and it is not easy to handle when it is used again.

Utility model content

In order to overcome the defects in the prior art, the purpose of this utility model is to provide a manual grease gun, which has a simple structure, saves time and effort during use, and is convenient for users to use; and the structure of the gun is not easy to oxidize Rust, safe and reliable to use.

The purpose of this utility model is achieved in that:

A manual grease gun, comprising an oil storage barrel and a gun cover, an oil push rod is movably arranged on the gun cover, and a driving mechanism for driving the movement of the oil push rod is arranged on the gun cover;

The drive mechanism includes a sector gear that drives the oil push rod to reciprocate laterally, a planetary gear that drives the sector gear to rotate, and a rack that drives the planetary gear to rotate;

The planetary gear includes a planetary carrier provided with an internal gear, a planetary pinion arranged in the planetary carrier and inscribed with the internal gear, and a sun gear circumscribed with the planetary pinion, and the planetary pinion is provided with a sector The connecting shaft of the gear connection;

The rack is reciprocated laterally through the pressing rod mechanism, so that the rack drives the sun gear to rotate;

The gun cover is provided with a cover shell, the sun gear is arranged in the cover shell, and one end of the rack passes through the cover shell and extends into the gun cover;

A lubricating substance is arranged in the cover shell;

The pressure rod mechanism includes a pressure rod and a connecting rod, the two ends of the connecting rod are respectively hinged to the gun cover and the pressure rod, and the other end of the rack is hinged to the middle part of the connecting rod.

After adopting the above structure, the reciprocating movement of the oil push rod becomes stable and efficient through the drive of the planetary gear, so that the filling becomes uniform and stable. Convenient and labor-saving; and the above-mentioned structure is interlocking, so that the grease gun will not shake during use, the transmission is stable, and the comfort of use is improved; at the same time, the rack is set in the cover shell to avoid the rack during use. The operator will be damaged again, and the external sundries will be prevented from blocking the rack and affecting the use. At the same time, the lubricating substance is used to lubricate the rack to ensure that when it needs to be used again, the filling becomes uniform and stable, and it saves effort.

The utility model is further configured as follows: the sun gear includes a driving tooth meshing with the rack and a driven tooth meshing with the planetary pinion; the transmission ratio of the driving tooth and the transmission tooth of the sector gear is 1:6-1:14.

The utility model is further configured as: the number of teeth of the driving teeth is greater than the number of teeth of the driven teeth.

After adopting the above structure, the pressure transmission of the pressing rod to the force of the oil pushing rod is more stable through the transmission of the driving gear and the driven gear.

The utility model is further configured as: three planetary pinions are provided, and the sun gear and the three planetary pinions are all circumscribed.

After adopting the above structure, the transmission can be made stable and the stress is balanced.

The utility model is further configured as follows: the outer cover of the planet carrier is provided with a fixed cover, the sun gear is movably connected with the fixed cover through a bearing, and the cover shell is arranged on the fixed cover.

After adopting the above structure, the planetary pinion is axially fixed by the fixed cover, so that the sun gear drives the planetary pinion.

The utility model is further configured as follows: the gun cover is provided with an oil pushing pipe, and the oil pushing rod is arranged in the oil pushing pipe.

After adopting the above structure, it is convenient for the oil pushing rod to move back and forth in the oil pushing pipe without shaking during the movement.

The utility model is further configured as follows: the side wall of the gun cover is fixedly connected with a fixed shell, and the sector gear is arranged in the fixed shell.

After adopting the above structure, the fixed shell plays a role of fixing and protecting the sector gear.

The utility model is further configured as follows: the oil push rod is provided with locking teeth meshing with the sector gear.

After adopting the above structure, the fixed shell plays a role of fixing and protecting the sector gear.

The utility model is further configured as follows: the lubricating substance is lubricating grease.

After adopting the above structure, the fluency of the movement of the rack is guaranteed, the rack is prevented from being oxidized when it is not used for a long time, and the service life of the product is increased.

The utility model is further configured as follows: the gun cover is provided with an accommodating chamber adapted to the rack.

After adopting the above-mentioned structure, the moving length of the rack can be guaranteed during the lateral movement process, and at the same time, the structural space of the gun cover can be fully utilized to make the product structure more compact.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the utility model after removing the pressure bar;

Fig. 3 is a schematic diagram of partial explosion of the utility model;

Fig. 4 is a schematic diagram of the local structure of the utility model;

Fig. 5 is a structural schematic diagram of the oil push rod of the present utility model;

Fig. 6 is a structural schematic diagram of the rack of the present invention.

Meanings of symbols in the figure:

1-Oil storage barrel; 2-Gun cover; 21-Push oil pipe; 22-Accommodating room; 3-Push oil rod; 31-Catch teeth;

41-sector gear; 421-planetary pinion; 422-sun gear; 4221-driving tooth;

4222-driven tooth; 44-planetary carrier; 441-internal gear; 5-rack; 51-catch two; 6-fixed cover;

7-bearing; 81-pressure rod; 82-connecting rod; 9-fixed shell; connecting shaft 91; 10-connecting shaft;

11-cover shell; 12-axle sleeve.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing with specific embodiment:

Referring to Figures 1 to 6, a manual grease gun includes an oil storage barrel 1 and a gun cover 2. An oil push rod 3 is movably arranged on the gun cover 2, and a device for driving the oil push rod 3 to move is arranged on the gun cover 2. Drive mechanism;

The drive mechanism includes a sector gear 41 that drives the oil push rod 3 to reciprocate laterally, a planetary gear that drives the sector gear 41 to rotate, and a rack 5 that drives the planetary gear to rotate;

The planetary gear includes a planetary carrier 44 provided with an internal gear 441, a planetary pinion 421 disposed in the planetary carrier 44 and inscribed with the internal gear 441, and a sun gear 422 circumscribed with the planetary pinion 421. The pinion 421 is provided with a connecting shaft 10 connected with the sector gear 41;

The rack 5 is reciprocated laterally through the mechanism of the pressing rod 81, so that the rack 5 drives the sun gear 422 to rotate;

The gun cover 2 is provided with a cover shell 11, the sun gear 422 is arranged in the cover shell 11, and one end of the rack 5 passes through the cover shell 11 and extends into the gun cover 2; in this embodiment, the gun cover 2 There is an accommodation chamber 22 adapted to the rack 5 inside, the accommodation chamber 22 is set independently, and does not come into contact with the grease in the gun cover 2, the grease in the oil storage barrel 1 will not overflow through the accommodation chamber 22, while the accommodation chamber 22 ensures the moving length of the rack 5 during the lateral movement, and can also make full use of the structural space of the gun cover 2 at the same time, so that the product structure is more compact.

A lubricating substance is provided in the cover shell 11; in the present embodiment, the lubricating substance is preferably lubricating grease, so as to ensure the fluency of the movement of the rack 5, prevent the rack 5 from being oxidized when it is not in use for a long time, and increase the product quality. service life.

Described depression bar 81 mechanism comprises depression rod 81 and connecting rod 82, and the two ends of connecting rod 82 are respectively hinged on gun cover 2 and depression rod 81, and the other end of tooth bar 5 is hinged with the middle part of connecting rod 82.

Moreover, in this embodiment, the oil push rod 3 and the rack 5 are arranged in parallel, so that when the connecting rod 82 drives the rack 5 to move, the rack 5 can smoothly drive the oil push rod 3 to inject oil, and the operation is smooth, saving time and effort.

In this embodiment, the reciprocating movement of the oil push rod 3 becomes stable and efficient through the drive of the planetary gear, so that the filling becomes uniform and stable. At the same time, the sun gear 422 is driven by the lever principle of the pressing rod 81 mechanism, so that the user can It is convenient and labor-saving when filling; and the above-mentioned structures are interlocking, so that the grease gun will not shake during use, the transmission is stable, and the comfort of use is improved; at the same time, the rack 5 is arranged in the cover shell 11 to avoid The rack 5 will damage the operator again during use, and also avoid external sundries from blocking the rack 5 and affecting its use. At the same time, lubricating substances are used to lubricate the rack 5 to ensure that when it needs to be used again, filling becomes easier. Uniform and stable, and labor-saving.

It is further set as follows: the sun gear 422 includes a driving tooth 4221 meshing with the rack 5 and a driven tooth 4222 meshing with the planetary pinion 421; the transmission ratio of the driving tooth 4221 and the transmission teeth of the sector gear 41 is 1:6- 1:14; in this embodiment, the transmission ratio of the driving teeth 4221 and the transmission teeth of the sector gear 41 is preferably 1:8; and, the number of teeth of the driving teeth 4221 is greater than the number of teeth of the driven teeth 4222, and the rack 5 A plurality of locking teeth 51 are provided in the upper axial direction, and the locking teeth 2 51 mesh with the driving teeth 4221. Through the transmission of the driving teeth 4221 and the driven teeth 4222, the pressure transmission of the pressure rod 81 to the force on the oil push rod 3 is more stable.

It is further set as follows: three planetary pinions 421 are provided, and the sun gear 422 and the three planetary pinions 421 are all circumscribed. In this embodiment, the driving teeth 4221 and the three planetary pinions 421 are all circumscribed. It can make the transmission stable and the force balanced.

It is further set as follows: the outer cover of the planet carrier 44 is provided with a fixed cover 6, the sun gear 422 is movably connected with the fixed cover 6 through the bearing 7, the cover shell 11 is set on the fixed cover 6, and the planetary pinion 421 is connected through the fixed cover 6. Axial fixation facilitates the sun gear 422 to drive the planetary pinion gear 421 .

It is further set as: the gun cover 2 is provided with an oil pushing pipe 21, and the oil pushing rod 3 is arranged in the oil pushing pipe 21, so that the oil pushing rod 3 moves back and forth in the oil pushing pipe 21 without shaking during the movement.

It is further set as follows: the side wall of the gun cover 2 is fixedly connected with a fixed shell 9, and the sector gear 41 is arranged in the fixed shell 9. In this embodiment, a connecting shaft 91 is arranged on the fixed shell 9, and the connecting shaft 91 The shaft sleeve 12 is movably connected with the sector gear 41 to facilitate the sector gear 41 to swing, and at the same time, the fixed shell 9 plays a role of fixing and protecting the sector gear 41 .

It is further set that: the oil push rod 3 is provided with a locking tooth 31 meshing with the sector gear 41 to facilitate the transmission of the sector gear 41 to the oil push rod 3 and make the transmission more stable.

The foregoing embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made according to the structures, shapes and principles of the present invention shall be covered by the protection of the present invention. within range.

Claims (10)

1. a kind of hand grease gun, including oil storage barrel (1) and rifle lid (2), it is movably set with and pushes away beam hanger (3) on rifle lid (2), it is special Sign is：The driving mechanism that driving pushes away beam hanger (3) movement is provided on the rifle lid (2)；

The driving mechanism includes the sector gear (41) that driving pushes away beam hanger (3) traverse motion, is driven sector gear (41) The planetary gear of rotation, and the rack gear (5) of driving planetary gear rotation；

The planetary gear includes being provided with the planet carriers (44) of internal gear (441), setting in planet carrier (44) and with it is interior The planet pinion (421) of gear (441) inscribe and the sun gear (422) circumscribed with planet pinion (421), the row The connecting shaft (10) connecting with sector gear (41) is provided in star pinion gear (421)；

The rack gear (5) carries out transverse reciprocating movement by pressure lever mechanism, and rack gear (5) is made to drive sun gear (422) rotation；

It is provided with lid shell (11) on the rifle lid (2), in lid shell (11), one end of rack gear (5) is worn for sun gear (422) setting It crosses lid shell (11) and extends in rifle lid (2)；

Greasing substance is provided in the lid shell (11)；

The pressure lever mechanism includes compression bar (81) and connecting rod (82), the both ends of connecting rod (82) be hingedly connected to rifle lid (2) and Compression bar (81), the other end of rack gear (5) and the middle part of connecting rod (82) are hinged.

2. a kind of hand grease gun according to claim 1, it is characterised in that：The sun gear (422) includes and tooth The driving tooth (4221) of item (5) engagement and the driven tooth (4222) engaged with planet pinion (421)；Driving tooth (4221) with The transmission ratio of the driving cog of sector gear (41) is 1:6-1:14.

3. a kind of hand grease gun according to claim 2, it is characterised in that：The number of teeth of the driving tooth (4221) is greater than The number of teeth of driven tooth (4222).

4. a kind of hand grease gun according to claim 1 or 2 or 3, it is characterised in that：The planet pinion (421) Setting 3, sun gear (422) and 3 circumscribed settings of planet pinion (421).

5. a kind of hand grease gun according to claim 4, it is characterised in that：Fixation is covered with outside the planet carrier (44) It covers (6), sun gear (422) is flexibly connected by bearing with fixed cover (6), and lid cap is located at fixed cover (on 6.

6. a kind of hand grease gun described according to claim 1 or 2 or 3 or 5, it is characterised in that：It is arranged on the rifle lid (2) It pushes away oil pipe (21), it is described to push away beam hanger (3) setting and pushing away in oil pipe (21).

7. a kind of hand grease gun according to claim 6, it is characterised in that：The side wall of the rifle lid (2) is fixedly connected Have set casing (9), sector gear (41) setting is in the set casing (9).

8. a kind of hand grease gun according to claim 1 or 2 or 7, it is characterised in that：Described push away is arranged on beam hanger (3) There is the latch (31) engaged with sector gear (41).

9. a kind of hand grease gun according to claim 1, it is characterised in that：The greasing substance is lubricant grease.

10. a kind of hand grease gun according to claim 1, it is characterised in that：It is provided in the rifle lid (2) and rack gear (5) accommodating chamber (22) being adapted to.