CN2208159Y - Self-locking grease gun junction - Google Patents

Abstract

The utility model discloses a self-locking grease gun joint, which comprises a hollow outer barrel and a screwed joint. A cylinder, a washer, a hollow pipe sleeve, and a spring are respectively arranged in the hollow outer barrel; the screwed joint is in screw connection with the rear end of the hollow outer barrel, the cylinder is provided with a central through hole, the front end plane forms a concave ball groove, the diameter of the front half section of the cylinder is larger than the diameter of the back half section of the cylinder, the back half section of the cylinder passes through the hollow pipe sleeve, the spring is contacted with a part between the hollow pipe sleeve and the screwed joint, and the periphery of the front half section of the cylinder is provided with two lateral plates. After assembled, the joint overcomes the defects that the existing joint is hard to assemble and easy to leak grease out. The utility model can be used as a joint device between a grease gun and a grease tank.

Description

Self-locking grease gun junction

The utility model relates to a kind of pipe joint, is meant the improvement to a kind of self-locking grease gun joint especially.

At present industrially often use a kind of joint structure to be the connection set between grease gun and grease boxes, in order to make the auditor understand the structure of its existing self-locking grease gun joint, please consult Fig. 1 earlier, this joint includes a hollow urceolus 1, its front end is a ring eaves 11 in being shaped on, and there is internal thread the open rearward end inboard; One hexagonal screw joint 12, its front end are outside thread to be arranged and the centre is that perforation is arranged; The T body 13 of one pipe shape, it is to have middle perforation rear end periphery then to be the evagination eaves; Oil sealing 14 is the T type, and its leading portion is that a buttress shaft and back segment are to be one to hold cup, has one to run through pore again in the centre, four lateral plates 15, its front end all be little in arcuation, T type body 13 and oil sealing 14 are two discrete component.When assembling, oil sealing 14 is worn by T type body 13 rear ends with its buttress shaft section and reclines, then four lateral plates 15 being posted by all rear flank of T type body 13 front ends is filled at this assemblying body in the urceolus 1, and in oil sealing 14 hold fill out in the cup establish a spring 16 after, be bolted in urceolus 1 rear open end with hexagonal screw joint 12 and make the tight position of each parts.Though this kind joint has used for many years, yet after when assembling is manually to be crimped on T type body 13 one by one because of its four lateral plate 15, filled out again and established in the urceolus 1, this moment, four lateral plates 15 very easily came off, be difficult for finishing swimmingly installing, reduce its packaging efficiency, on the other hand, as shown in Figure 2, when this joint combines with grease nipple 2,, it is encircled the insertion of eaves 11 ends in urceolus 1 because of grease nipple 2 front ends are spherical shape, and provide an embedding tight effect by number lateral plate 15, and grease nipple 2 front ends are connected to T type oil sealing 14 and buttress shaft end pore place.Yet this kind structure is limited it when engaging with grease nipple only can straight line be connected and must not has any angle of inclination to produce, otherwise will cause oil leakage phenomenon, will guarantee in actual use to produce without any the inclination angle between grease nipple and joint, and therefore real difficulty is accomplished.

The purpose of this utility model is to overcome the shortcoming that above-mentioned joint exists, and provides a kind of easy to assembly, and joint and grease nipple join and coincide, the self-locking grease gun joint of no oil leakage phenomenon.

To achieve these goals, the utility model adopts following technological scheme: this joint is the same with existing joint, and it has a hollow urceolus, its front end is interior ring eaves, the open rearward end side then has internal thread, a screw joint, and its front end is established outside thread and the centre has perforation.Different is to be equiped with cylindrical body, packing ring, hollow bush, spring in the hollow urceolus successively, cylindrical body has central perforation, preceding half section diameter is greater than the second half section diameter, cylindrical body leading portion face is a concave-curve ball groove, ear end face then has a recessed grooving, and the cylindrical body second half section is passed pipe box, and spring is butted between pipe box and the screw joint, being with two halves circular arc and front end before cylindrical body outside half section is interior arcuation lateral plate, and the outside is respectively equipped with a pod in the middle of the lateral plate.

To have replaced original T type body and oil sealing and cylindrical body leading portion face by cylindrical body and hollow bush be matrix ball groove because the utility model has adopted, making joint and grease nipple join coincide, no oil leakage phenomenon produces, owing to replaced four original lateral plates, make this joint be easy to assembling simultaneously with two lateral plates with recessed grooving.

Below in conjunction with accompanying drawing the utility model being done one describes in detail:

Fig. 1 is existing self-locking grease gun joint structure cross-sectional schematic.

Fig. 2 is that existing self-locking grease gun joint combines schematic representation with grease nipple.

Fig. 3 is the utility model perspective exploded view.

Fig. 4 is the utility model structure cross-sectional schematic.

Fig. 5 is that the utility model combines schematic representation with grease nipple.

See also Fig. 3, the utility model includes a hollow urceolus 3, ring eaves 31 in its front end tool, and the open rearward end side then has internal thread; One screw joint 4, its front end is established outside thread and the centre has perforation; One cylindrical body 5, it is to have central perforation, and the leading portion diameter is greater than the back segment diameter, is to form a concave arc ball groove 51 in front-end face, ear end face then has recessed grooving 52 together; Ring eaves 61 in one hollow bush 6, its front end are shaped on; One spring 7 and two lateral plates 8, lateral plate 8 back ofs the body are half arc, and front end system is little interior arcuation, dissects a pod 81 to nearly rear end by front end again in the middle of lateral plate 8.

During assembling as shown in Figure 4, cylindrical body 5 is behind a sheathed packing ring 53 of its second half section, insert in and encircle in eaves 61 end openings within the pipe box 6, and two lateral plates 8 are posted by cylindrical body 5 leading portions in opposite directions, because the volume of lateral plate 8 is complete, cause mobility and reduce, the operating personnel can pinch with finger easily when artificial assembling, in the urceolus 3 of successfully packing into; Screw in screw joint 4 each parts of tight position at last again.On the other hand, see also Fig. 5, when grease nipple 2 by urceolus 3 in ring eaves 31 ends when inserting, the function of lateral plate 8 its buffering embedding systems of same performance, and grease nipple 2 is concave arc ball groove 51 places that are connected to cylindrical body 5, by this kind marriage relation, grease nipple 2 can 360 degree turns and 10 degree inclination angle nargin can be arranged and be unlikely leakage of oil, what deserves to be mentioned is, cylindrical body 5 is to adopt the moulding of powder metallurgy mode in the utility model, precision increases substantially, processes easy to be quick, and improve former joint and adopt the making of machined into to be difficult for, and the disadvantage of precision difference.

The utility model structure medi-spring 7 is butted between screw joint 4 and pipe box 6 end faces in addition, but so space size that turn screw joint 4 is adjusted in urceolus 3 front aperture, socket-connect with the grease nipple 2 that adapts to various different sizes, this kind structure more can reach the effect that keeps both fluid-tight engagement to the grease nipple 2 of existing wearing and tearing.

Claims (2)

1, a kind of self-locking grease gun joint, it comprises a hollow urceolus (3), its front end is an interior ring eaves (31), the open rearward end side then has internal thread, one screw joint (4), its front end is provided with outside thread and the centre has perforation, screw joint can be installed on hollow urceolus (3) rear end, it is characterized in that: be equiped with cylindrical body (5) in the hollow urceolus (3) successively, packing ring (53), hollow bush (6), spring (7), cylindrical body (5) has central perforation, preceding half section diameter is greater than the second half section diameter, cylindrical body (5) leading portion face is a concave-curve ball groove (51), ear end face then has a recessed grooving (52), later half end passes pipe box (6), spring (7) is butted between pipe box (6) and the screw joint (4), outside preceding half section of cylindrical body (5), be with two halves circular arc, and front end is interior arcuation side (a 8) sheet, and the outside is respectively equipped with a pod (81) in the middle of two lateral plates (8).

2, self-locking grease gun joint as claimed in claim 1 is characterized in that: said cylindrical body (5) is one-body molded for powder metallurgy.

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