CN209991188U

CN209991188U - Novel lock clamp type grease gun nozzle

Info

Publication number: CN209991188U
Application number: CN201920738735.2U
Authority: CN
Inventors: 韩华丙
Original assignee: Hangzhou Tai Hong Hardware & Tools Co Ltd
Current assignee: Hangzhou Tai Hong Hardware & Tools Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-01-24
Anticipated expiration: 2029-05-22

Abstract

The utility model relates to a grease gun technical field especially relates to a novel lock pincers formula grease gun nozzle. Including fixed core bar structure, but sliding mounting's push rod structure around the relatively fixed core bar structure, press the handle with fixed core bar structure pin junction, movable push rod structure cup joints at fixed core bar structure outsidely, set up the return spring that is used for movable push rod structure return between fixed core bar structure and the movable push rod structure, the anterior angle of pressing the handle withstands fixed core bar structure, the front end detachable of movable push rod structure installs the front end fore-set, detachable installation chuck on the front end fore-set, the chuck outside sets up several fixture blocks, jack catch movable mounting is on the fixture block. And a compact connecting mechanism is adopted, so that the equipment is small in size and convenient to operate by one hand. Adopt multi-level screw thread detachable connection mode, be convenient for dismouting and maintenance. The clamping jaws are installed through the clamping chuck, so that the clamping jaws are convenient to install.

Description

Novel lock clamp type grease gun nozzle

Technical Field

The utility model relates to a grease gun technical field especially relates to a novel lock pincers formula grease gun nozzle.

Background

The grease nipples in the market are not easy to disassemble and maintain, are basically equivalent to disposable grease gun heads, are inconvenient to clean when problems occur and can only be replaced when the grease gun heads are polluted by deteriorated grease. In particular, some grease gun nozzles are not well assembled and installed after being disassembled.

Disclosure of Invention

In order to solve the problem, the utility model provides a novel lock pincers formula grease gun mouth.

The utility model provides a novel lock pincers formula grease gun mouth, a serial communication port, including fixed core bar structure, slidable mounting's push rod structure around the relatively fixed core bar structure, with the handle of pressing of fixed core bar structure pin junction, movable push rod structure cup joints outside fixed core bar structure, set up the return spring who is used for movable push rod structure return between fixed core bar structure and the movable push rod structure, the anterior angle of pressing the handle withstands fixed core bar structure, movable push rod structure's front end detachable installation front end fore-set, detachable installation chuck on the fore-set, the movable installation of jack catch is on the chuck, the front end of fore-set is conical. A plurality of clamping blocks are arranged outside the chuck, clamping jaws movably penetrate through the clamping holes and are movably arranged on the clamping blocks, and the clamping jaws are compact in structure through a fixed core bar structure, a push rod structure and a pressing handle which are connected with one another. Through pressing the handle, but one-hand operation comes joint jack catch through the fixture block on the chuck for the installation of jack catch is very convenient. The front end of the front end support pillar is designed to be a cone with a small front end and a large rear end, so that a turning space is provided for the opening of the clamping jaws.

Preferably, a plurality of clamping blocks are arranged outside the chuck, clamping holes are formed in the middle of the clamping jaws, and the clamping jaws movably penetrate through the clamping holes and the clamping blocks. The clamping jaws are convenient to install and are not easy to fall off in the moving process.

Preferably, a plurality of clamping blocks are arranged outside the chuck, clamping grooves with outward notches are formed in two sides of each clamping jaw, and the clamping jaws are movably arranged between the two clamping blocks through the clamping grooves in the two sides. Through the action of every two clamping blocks, the clamping jaw is stably and firmly installed.

Preferably, the fixed core rod structure comprises a one-way valve and an inner core rod, and the inner core rod is in threaded connection with the one-way valve through a third external thread arranged on the rear end cylindrical surface. Through the threaded connection of the inner core rod and the one-way valve, the one-way valve is easy to disassemble and assemble, and when the one-way valve is blocked, the one-way valve is convenient to disassemble and clean.

Preferably, the rear part of the conical front end of the front end support pillar is provided with a cylinder, the outer wall of the cylinder is provided with a second external thread, the front end support pillar is in threaded connection with the front end hole of the inner core rod through the second external thread, and the chuck is fixed between the front end support pillar and the inner core rod through a middle round hole.

Preferably, the number of the clamping jaws is three or four, and the three or four clamping jaws are cylindrical when being folded.

Preferably, the push rod structure comprises an outer sleeve and a push disc, the middle section of the outer wall of the outer sleeve is provided with a polyhedron, the right section of the outer wall of the outer sleeve is provided with a first external thread, the outer sleeve is detachably connected with the push disc through the first external thread, and the center of a disc at the bottom end of the push disc is provided with a disc center hole for the inner core rod main body to pass through; the front end of the inner core rod is provided with a circular convex edge, and the inner diameter of the central hole of the circular disk is smaller than that of the circular convex edge; the return spring penetrates through the inner core rod main body, one end of the return spring props against the circular convex edge, and the other end of the return spring props against the bottom end disc of the push disc. The outer sleeve is provided with knurls on the outer surface of the front end of the outer sleeve, so that the outer sleeve is convenient to manually disassemble and assemble, the middle section of the outer sleeve is provided with a plurality of facets, the outer sleeve is convenient to screw or disassemble by using a wrench, and the two sides of the bottom end disc of the push disc are provided with cutting planes, so that the outer sleeve is convenient to hold.

Preferably, the check valve is provided with an upper shaft hole, the middle part of the pressing handle is provided with an upper shaft pin which is used for penetrating through the upper shaft hole, the front end of the pressing handle is provided with a lower shaft pin, and the lower shaft pin is provided with a roller. The rolling roller is arranged on the lower shaft pin, so that the abrasion caused by friction is reduced, and the pressing handle can be prevented from being stuck.

Preferably, the inner cavity of the outer sleeve is a conical oral cavity with a small front part and a large back part. Through the outer sleeve of the design toper inner chamber for when the outer sleeve antedisplacement, the jack catch obtains big activity volume, thereby can enlarge the flare angle, is favorable to embracing the nozzle of spherical head.

The utility model has the advantages that: the utility model relates to a novel lock pincers formula grease gun mouth adopts compact coupling mechanism for equipment is small, the one-hand operation of being convenient for. Adopt multi-level screw thread detachable connection mode, be convenient for dismouting and maintenance. The clamping jaws are installed through the clamping chuck, so that the clamping jaws are convenient to install.

Drawings

Fig. 1 is an oblique view of the nozzle structure of the grease gun of the present invention.

Fig. 2 is a front view of the grease gun nozzle structure of the present invention.

Fig. 3 is a view a-a of fig. 2.

Fig. 4 is an exploded view of the grease gun nozzle of the present invention.

Fig. 5 is an exploded view of the second embodiment of the grease gun nozzle of the present invention.

Wherein: 1-outer sleeve; 2-pushing the disc; 3-pressing the handle; 4-a one-way valve; 5-inner core bar; 6-front end top pillar; 7-clamping jaws; 8-a chuck; 11-a first external thread; 21-center hole of disc; 31-lower axle pin; 32-upper axle pin; 41-upper shaft hole; 51-a return spring; 52-valve body spring; 53-a third external thread; 61-a second external thread; 71-a clamping hole; 72-card slot; 81-fixture block.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, 2, 3, and 4. Including fixed core bar structure, but sliding mounting's push rod structure around the relatively fixed core bar structure, press handle 3 with fixed core bar structure pin junction, movable push rod structure cup joints at fixed core bar structure outsidely, set up return spring 51 that is used for movable push rod structure return between fixed core bar structure and the movable push rod structure, the anterior angle of pressing handle 3 withstands fixed core bar structure, movable push rod structure's front end detachable installation front end fore-set 6, detachable installation chuck 8 on front end fore-set 6, installing on chuck 8 of jack catch 7 activity, the front end of front end fore-set 6 is conical. The center of the fixed core rod structure is provided with an oil passage for lubricating oil to pass through, and the front end and the rear end of the fixed core rod structure are respectively butted with equipment to be oiled and an oil supply pipeline during oil injection. The movable push rod structure is sleeved outside the fixed core rod structure and can slide back and forth relative to the fixed core rod structure. The middle section of the pressing handle 3 is connected with the fixed core bar structure through a pin, the upper end of the pressing handle 3 is used for pressing with fingers, and the lower end of the pressing handle 3 abuts against the movable push rod structure. When the upper end of the pressing handle 3 is pressed by fingers, the lower end part of the pressing handle 3 can prop against the movable push rod structure to slide forwards, the movable push rod structure overcomes the pressure of the return spring 51 to slide forwards, the clamping jaw 7 is separated from the contact with the movable push rod structure, so that the movable push rod structure is in contact with the pressure of the clamping jaw 7, the clamping jaw 7 is in a movable and openable state, and then the oil filler is plugged into the oil filler. When the handle 3 is pressed to remove the acting force, the movable push rod structure rebounds backwards under the action of the return spring 51 and returns to the initial position, and the jaw 7 is pressed by the small opening at the front end of the movable push rod structure, so that the jaw 7 is closed towards the middle. The latch hole 71 of the latch 7 is slightly larger than the latch 81 so that the latch 7 can be freely released and pressed under the contact pressure. The lower center of the front end of the claw 7 is bent, so that the spherical head of the oil filling nozzle can be folded.

In this embodiment, as shown in fig. 4, a plurality of blocks 81 are disposed outside the chuck 8, a clamping hole 71 is disposed in the middle of the clamping jaw 7, and the clamping jaw 7 movably penetrates through the clamping hole 71 and the blocks 81. The clamping block 81 on the clamping chuck 8 is inserted into the clamping hole 71 of the clamping jaw 7, so that the clamping jaw 7 is stably installed on the clamping chuck 8 and is not easy to fall off when the clamping jaw 7 is installed.

In this embodiment, as shown in fig. 5, a plurality of blocks 81 are disposed outside the chuck 8, two sides of the latch 7 are provided with slots 72 with outward notches, and the latch 7 is movably mounted between the two blocks 81 through the slots 72 on the two sides. A clamping jaw 7 is movably arranged between every two clamping blocks 81 on the chuck 8, and the height of the clamping groove 72 is slightly larger than the thickness of the clamping blocks 81, so that the clamping jaw 7 is not easy to fall off when being opened and closed.

In this embodiment, as shown in fig. 4. The fixed core rod structure comprises a one-way valve 4 and an inner core rod 5, and the inner core rod 5 is in threaded connection with the one-way valve 4 through a third external thread 53 arranged on the rear end cylindrical surface. The check valve 4 and the inner core rod 5 are centrally provided with an oil delivery passage for the passage of lubricating oil. A valve body spring 52 is arranged in an inner cavity at the rear end of the inner core rod 5 and used for providing elasticity for small balls in an inner cavity at the front end of the one-way valve 4, so that lubricating oil can be conveyed to the front end from the rear end of the one-way valve 4 only in a one-way mode, and internal threads used for being externally connected with an oil conveying pipe are arranged in a cavity at the rear end of the one-way valve 4.

In this embodiment, as shown in fig. 4. The rear portion of the conical front end of the front end support pillar 6 is provided with a cylinder, a second external thread 61 is arranged on the outer wall of the cylinder, the front end support pillar 6 is in threaded connection with the front end hole of the inner core rod 5 through the second external thread 61, the cylinder of the front end support pillar 6 is inserted into the front end inner cavity of the inner core rod 5, a sealing gasket is arranged between the front end face of the inner core rod 5 and the rear end face of the front end support pillar 6, the sealing performance of the central oil duct of the inner core rod 5 and the front end support pillar 6 is guaranteed, and oil leakage is avoided. The chuck 8 is fixed between the front end top pillar 6 and the core rod 5 through a central circular hole. The center of the front end top post 6 is provided with a central oil duct communicated with the central lubricating oil channel of the inner core rod 5. The oil filler nozzle is butted through the front end interface of the front end top column 6, so that oil is supplied to the oil filler nozzle. In addition, the front end top column 6 is detachably connected with the thread of the inner core rod, so that the chuck 8 can be conveniently and detachably mounted. When the claws 7 are closed, the large-head cylinder of the front-end ejection column 6 is wrapped by a plurality of claws 7.

In this embodiment, as shown in fig. 4. The number of the claws 7 is three or four, and the three or four claws 7 are cylindrical when being folded. When three or four claws 7 are folded, a gap is reserved between every two claws 7. In the case of sample preparation, a complete cylinder can be cut into three pieces. For batch processing, it can be made by means of a mold.

In this embodiment, as shown in fig. 4. The push rod structure comprises an outer sleeve 1 and a push disc 2, wherein the middle section of the outer wall of the outer sleeve 1 is provided with a polyhedron, the right section of the outer wall of the outer sleeve 1 is provided with a first external thread 11, the outer sleeve 1 is detachably connected with the push disc 2 through the first external thread 11, and the center of a disk at the bottom end of the push disc 2 is provided with a disk center hole 21 for a main body of the inner core rod 5 to pass through; the front end of the inner core rod 5 is provided with a circular convex edge, and the inner diameter of the central hole 21 of the circular disk is smaller than that of the circular convex edge; the return spring 51 penetrates through the main body of the inner core rod 5, one end of the return spring 51 props against the circular convex edge, and the other end of the return spring props against the bottom end disk of the push disc 2. When the valve is installed, the return spring 5 is firstly penetrated on the main body rod of the inner core rod 5, then the push disc 2 is penetrated on the main body rod of the inner core rod 5, and then the check valve 4 is installed on the inner core rod 5. The jaws 7 are then placed on the front end post 6 and the outer sleeve 1 is then fitted over the front end post 6.

In this embodiment, as shown in fig. 4. The check valve 4 is provided with an upper shaft hole 41, the middle part of the pressing handle 3 is provided with an upper shaft pin 32 which is used for penetrating through the upper shaft hole 41, the front end of the pressing handle 3 is provided with a lower shaft pin 31, and the lower shaft pin 31 is provided with a roller. The push handle 3 is mounted in a pin-connected manner on the non-return valve 4. When the pressing handle 3 is pulled, the lower shaft pin 31 at the front end pushes against the pushing disc 2. When the pushing disc 2 is pushed, the lower shaft pin 31 slides relative to the pushing disc 2, and the roller is arranged on the lower shaft pin 31 and can rotate relative to the lower shaft pin 31, so that the abrasion can be reduced. The inner cavity of the outer sleeve 1 is a tapered oral cavity with a small front part and a big back part. Through the outer sleeve 1 of the design toper inner chamber for when outer sleeve 1 antemoved, jack catch 7 obtained big activity, thereby can enlarge the opening angle, be favorable to embracing the nozzle of spherical head.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. The utility model provides a novel lock pincers formula grease gun mouth which characterized in that: including fixed core bar structure, but sliding mounting's push rod structure around the relatively fixed core bar structure, press handle (3) with fixed core bar structure pin junction, movable push rod structure cup joints at fixed core bar structure outsidely, set up return spring (51) that are used for movable push rod structure return between fixed core bar structure and the movable push rod structure, the anterior angle of pressing handle (3) withstands fixed core bar structure, front end detachable installation front end fore-set (6) of movable push rod structure, detachable installation chuck (8) on front end fore-set (6), what jack catch (7) were movable installs on chuck (8), the front end of front end fore-set (6) is conical.

2. The novel lock-jaw grease gun nozzle according to claim 1, characterized in that: a plurality of clamping blocks (81) are arranged outside the chuck (8), clamping holes (71) are formed in the middle of the clamping jaws (7), and the clamping jaws (7) movably penetrate through the clamping holes (71) and on the clamping blocks (81).

3. The novel lock-jaw grease gun nozzle according to claim 1, characterized in that: a plurality of clamping blocks (81) are arranged outside the chuck (8), clamping grooves (72) with outward notches are formed in two sides of the clamping jaw (7), and the clamping jaw (7) is movably arranged between the two clamping blocks (81) through the clamping grooves (72) in the two sides.

4. The novel lock-jaw grease gun nozzle according to claim 1, characterized in that: the fixed core rod structure comprises a one-way valve (4) and an inner core rod (5), and the inner core rod (5) is in threaded connection with the one-way valve (4) through a third external thread (53) arranged on the rear end cylindrical surface.

5. The novel lock-jaw grease gun nozzle according to claim 4, characterized in that: the rear portion of the conical front end of the front end support pillar (6) is provided with a cylinder, a second external thread (61) is arranged on the outer wall of the cylinder, the front end support pillar (6) is in threaded connection with a front end hole of the inner core rod (5) through the second external thread (61), and the chuck (8) is fixed between the front end support pillar (6) and the inner core rod (5) through a middle round hole.

6. The novel lock-jaw grease gun nozzle according to claim 4, characterized in that: the number of the clamping jaws (7) is three or four, and the three or four clamping jaws (7) are cylindrical when being folded.

7. The lock-jaw grease gun nozzle according to claim 4 or 5, characterized in that: the push rod structure comprises an outer sleeve (1) and a push disc (2), wherein the middle section of the outer wall of the outer sleeve (1) is provided with a polyhedron, the right section of the outer wall of the outer sleeve (1) is provided with a first external thread (11), the outer sleeve (1) is detachably connected with the push disc (2) through the first external thread (11), and the center of a disc at the bottom end of the push disc (2) is provided with a disc center hole (21) through which a main body of the inner core rod (5) passes; the front end of the inner core rod (5) is provided with a circular convex edge, and the inner diameter of the circular central hole (21) is smaller than that of the circular convex edge; the return spring (51) penetrates through the inner core rod (5) main body, one end of the return spring (51) abuts against the circular convex edge, and the other end of the return spring abuts against the bottom end disc of the push disc (2).

8. The new lock-jaw grease gun nozzle according to claim 7, characterized in that: the check valve (4) on set up shaft hole (41), press handle (3) intermediate part and set up last pivot (32) that are used for passing shaft hole (41), press the front end installation of handle (3) down pivot (31), install the gyro wheel on the lower pivot (31).