阅读说明：本技术 固定式爪片油脂枪连接器 (Fixed claw grease gun connector ) 是由 王叶飞 于 2020-05-28 设计创作，主要内容包括：本发明公开了一种具有固定式爪片油脂枪连接器,其属于一种新型的能够实现与油嘴紧密咬合和脱离的连接器,其包括油脂枪出油管连接部、本体、爪片附着部、多个爪片、套筒,所述套筒的套筒端口内壁设置有环形凸缘,在套筒逆着输油方向而轴向运动过程中,所述环形凸缘挤压所述多个爪片,使所述多个爪片发生所述形变,以利于在加油状态时连接器咬紧油嘴。本发明解决黄油枪连接器领域里普遍的脱离、咬合问题,不需要设置锥形套管,爪片不再是活动设置,提供该领域的一种新的技术路线。(The invention discloses a grease gun connector with fixed claws, which belongs to a novel connector capable of realizing tight occlusion and separation with a grease nipple and comprises a grease gun oil outlet pipe connecting part, a body, claw piece attaching parts, a plurality of claws and a sleeve, wherein an annular flange is arranged on the inner wall of a sleeve port of the sleeve, and the annular flange extrudes the claws in the axial movement process of the sleeve against the oil conveying direction to deform the claws so as to be beneficial to the tight occlusion and separation of the connector with the grease nipple in the oil filling state. The invention solves the common problems of separation and occlusion in the field of grease gun connectors, does not need to arrange a tapered sleeve, and the claw sheet is not movably arranged any more, thereby providing a new technical route in the field.)

1. The utility model provides a grease gun connector, its includes grease gun oil outlet pipe connecting portion (11), body (12), claw piece adhesion portion (13), a plurality of claw pieces (14), sleeve (32), its characterized in that:

the inlet end of the oil outlet pipe connecting part (11) of the grease gun is used for being connected with an oil outlet pipe of the grease gun, the outlet end of the oil outlet pipe connecting part (11) of the grease gun is connected with the body (12), the claw piece attaching part (13) is arranged in the outlet direction of the body (12), and the plurality of claw pieces (14) are arranged at the outlet direction end of the claw piece attaching part (13);

claw piece gaps (16) are arranged among the plurality of claw pieces (14), the outlet direction ends of the plurality of claw pieces (14) can deform towards the axial lead of the plurality of claw pieces (14) after being extruded, and the opening pore diameter of the outlet ends of the plurality of claw pieces (14) is set to be a size which is beneficial to the insertion of an oil nozzle when the deformation does not occur;

the sleeve (32) is sleeved outside the plurality of claw sheets (14) and moves along the axial direction of the sleeve (32) by manual operation of a user;

the inner wall of the sleeve port (33) of the sleeve (32) is provided with an annular flange which presses the plurality of claws (14) during axial movement of the sleeve (32) against the direction of fuel delivery to cause said deformation of the plurality of claws (14) to facilitate the connector to grip the nipple in the fuel filling state;

when the sleeve (32) moves axially along the oil delivery direction, the plurality of claw sheets (14) recover to be deformed after the extrusion disappears, and the connector is further favorably separated from the oil nozzle.

2. The grease gun connector according to claim 1, wherein: the outer shape of the outlet direction end of each claw piece (14) is a curved surface shape.

3. The grease gun connector according to any one of claims 1 or 2, wherein: the outlet end of the claw piece attaching part (13) is integrally connected with the plurality of claw pieces (14).

4. The grease gun connector according to claim 3, wherein: the inner wall of the sleeve (32) is cylindrical.

5. The grease gun connector according to any one of claims 1-2, 4, wherein: the manual operation by the user is realized by means of a handle (21) or/and an axial fixing connecting piece (22) or/and a screw/bolt (23, 51) or/and a screw hole (15, 31).

6. The grease gun connector according to claim 5, wherein: a first screw hole (15) provided on said body (12) cooperates with a first screw/bolt (23) to axially fix said handle (21); one through hole of the axial fixing connection piece (22) is used for connecting the handle (21) and the axial fixing connection piece (22) in a rotating and axial fixing manner through the axial fixing portion (24), and the other through hole of the axial fixing connection piece (22) is used for connecting the sleeve (32) through a second screw/bolt (51) and a second screw hole (31) on the sleeve (32).

7. The grease gun connector according to claim 6, wherein: the diameter of the sleeve (32) at the position of the second screw hole (31) is larger than the diameter of the sleeve at other positions of the sleeve (32).

8. A grease gun connector according to any one of claims 1, 2, 4, 6 or 7, wherein: the oil outlet pipe connecting part (11) of the grease gun is fixedly connected with the body (12) through threads.

9. A grease gun connector according to any one of claims 6 or 7, characterized in that: in the pre-occlusion/post-occlusion state, the axial fixing part (24), the first screw/bolt (23) and the second screw/bolt (51) are in a triangular state relation; in the oiling/meshing state, the axial fixing part (24), the first screw/bolt (23) and the second screw/bolt (51) are in a linear state relation.

10. A grease gun connector according to any one of claims 1, 2, 4, 6 or 7, wherein: a sealing member (61) with a hole at the center is arranged inside the plurality of claw sheets (14).

[ technical field ] A method for producing a semiconductor device

The present invention relates to a connector, and more particularly to a novel connector for connecting a grease gun and a grease nipple.

[ background of the invention ]

A Grease Gun connector (also called a Grease Gun, Grease Gun) is a type of connector (also called a flat nipple, simply called a connector in the present invention) that engages with a Grease nipple (nipple) for injecting Grease from the Grease Gun to the Grease nipple to provide a need such as lubricant to various mechanical devices. The connection between the grease gun and the connector is typically through a flowline. To meet the needs of market advancement and user requirements, new-generation connectors are generally required to satisfy the following technical effects (solving the technical problems that generally need to be solved):

1. after the oil is added, the connector is easy to separate from the oil nozzle;

2. when the oil is filled, the connector can be tightly meshed with the oil nozzle.

For this reason, there are various technical routes in the prior art to achieve the above technical effects, for example, at least the following prior arts can be referred to:

[ summary of the invention ]

A novel technical route is provided for the field of grease gun connectors so as to achieve the technical effects mentioned in the background technology. As an important feature of the invention, the invention abandons the important features of the conventional technical routes of taper sleeve/tube, movable taper distributed claw sheets (clamping pieces) with front and rear clamping edges, and the like. Therefore, the invention is realized by the following technical scheme:

the utility model provides a grease gun connector, its includes grease gun oil outlet pipe connecting portion (11), body (12), claw piece adhesion portion (13), a plurality of claw pieces (14), sleeve (32), its characterized in that:

the inlet end of the oil outlet pipe connecting part (11) of the grease gun is used for being connected with an oil outlet pipe of the grease gun, the outlet end of the oil outlet pipe connecting part (11) of the grease gun is connected with the body (12), the claw piece attaching part (13) is arranged in the outlet direction of the body (12), and the plurality of claw pieces (14) are arranged at the outlet direction end of the claw piece attaching part (13) (the arrangement of the claw pieces means that the claw pieces comprise fastening connection and integral connection);

claw piece gaps (16) are arranged among the plurality of claw pieces (14), the outlet direction ends of the plurality of claw pieces (14) can deform towards the axial lead of the plurality of claw pieces (14) after being extruded, and the opening pore diameter of the outlet ends of the plurality of claw pieces (14) is set to be a size which is beneficial to the insertion of an oil nozzle when the deformation does not occur;

the sleeve (32) is sleeved outside the plurality of claw sheets (14) and moves along the axial direction of the sleeve (32) by manual operation of a user;

the inner wall of the sleeve port (33) of the sleeve (32) is provided with an annular flange which presses the plurality of claws (14) during axial movement of the sleeve (32) against the direction of fuel delivery to cause said deformation of the plurality of claws (14) to facilitate the connector to grip the nipple in the fuel filling state;

when the sleeve (32) moves axially along the oil delivery direction, the plurality of claw sheets (14) recover to be deformed after the extrusion disappears, and the connector is further favorably separated from the oil nozzle.

In a certain class of embodiments: the outer shape of the outlet direction end of each claw piece (14) is a curved surface shape.

In a certain class of embodiments: the outlet end of the claw piece attaching part (13) is integrally connected with the plurality of claw pieces (14).

In a certain class of embodiments: the inner wall of the sleeve (32) is cylindrical.

In a certain class of embodiments: the manual operation by the user is realized by means of a handle (21) or/and an axial fixing connecting piece (22) or/and a screw/bolt (23, 51) or/and a screw hole (15, 31).

In a certain class of embodiments: a first screw hole (15) provided on said body (12) cooperates with a first screw/bolt (23) to axially fix said handle (21); one through hole of the axial fixing connection piece (22) is used for connecting the handle (21) and the axial fixing connection piece (22) in a rotating and axial fixing manner through the axial fixing portion (24), and the other through hole of the axial fixing connection piece (22) is used for connecting the sleeve (32) through a second screw/bolt (51) and a second screw hole (31) on the sleeve (32).

In a certain class of embodiments: the diameter of the sleeve (32) at the position of the second screw hole (31) is larger than the diameter of the sleeve at other positions of the sleeve (32).

In a certain class of embodiments: the oil outlet pipe connecting part (11) of the grease gun is fixedly connected with the body (12) through threads.

In a certain class of embodiments: in the pre-occlusion/post-occlusion state, the axial fixing part (24), the first screw/bolt (23) and the second screw/bolt (51) are in a triangular state relation; in the oiling/meshing state, the axial fixing part (24), the first screw/bolt (23) and the second screw/bolt (51) are in a linear state relation.

In a certain class of embodiments: a sealing member (61) with a hole at the center is arranged inside the plurality of claw sheets (14).

The foregoing may be found in one aspect in a direct and/or generalized description of the embodiments and may be a useful addition to the embodiments, which are also included in certain embodiments of the present disclosure.

The benefits achieved by the present invention are at least as follows:

1. provides a novel technical scheme for solving the common technical problem in the field of grease gun connectors.

2. The sleeve/tube of the invention does not need to be tapered inside, thus simplifying the processing difficulty.

3. The claw piece is an integrated claw piece, and the assembly process in charge is not needed.

4. The claw sheet does not need to be attached to the circular truncated cone-shaped front discharge end of the body, a retaining groove of the clamping edge does not need to be arranged, and the clamping sheet is not an independent movable part any more.

The invention is not limited to characters, and other technical effects which can be directly obtained according to the structure of the invention are all beneficial effects which can be obtained after the application date.

[ description of the drawings ]

FIG. 1 is a body construction of a connector;

FIG. 2 shows the main structure after the handle is installed;

FIG. 3 is a schematic view of the pawl and sleeve;

FIG. 4 is the connector before the nipple is snapped in;

FIG. 5 is the connector after engagement of the nozzle tip;

fig. 6 is a comparison of the change of state of the claw sheet before and after occlusion.

[ detailed description ] embodiments

The description mode declares: the embodiments described below are not intended to be merely descriptions of one particular embodiment, but rather are intended to be selective descriptions of potential embodiments having certain features, some of which are not necessarily present. Specific to a particular embodiment, it is a combination of certain features that follows, provided that such combination is not logically contradictory, or meaningless. The appearance of "may/may" anywhere in the invention (may, may be, meaning selected, implying that there may be other alternatives; except if the context dictates "capability") is a description of a preferred embodiment and may be a potential alternative. When the terms of approximate description (if any) such as "approximately", "near", and the like appear at any position of the invention, the intended meaning is not to require that the data obtained after the strict actual parameter measurement strictly conforms to the general mathematical definition, because there is no physical entity completely conforming to the mathematical definition, and the words do not obscure the words and ambiguity, thereby causing ambiguity. In infringement determination procedures, the specific meanings of technical terms/words appearing in the claims are to be interpreted as "broadest reasonable interpretation" of the scope of the claims in a comprehensive examination of the context of the invention, taking the specification as a technical dictionary; in the process of ineffectiveness and the like, the claims should be interpreted reasonably best by the applicant/patentee under the "presumption of patentability principle" to thereby encourage and protect the spirit of the invention in practice of patent laws.

In addition, although the present invention has been described with some modules (devices) separated from each other, such as the grease gun outlet pipe connecting portion 11, the body 12, and the claw piece attaching portion 13, those skilled in the art will appreciate that the above description is merely a functional division for convenience of description, and in the specific implementation, a plurality of functional modules may be implemented as one device entity (for example, the connecting portion 11 and the body 12 are implemented as one device, and the body 12 and the claw piece attaching portion 13 are implemented as one device), but this mode cannot be used as a means for circumventing the concept of the present invention. In the infringement certification process, even if it is difficult to spontaneously divide one entity apparatus into a plurality of modules/apparatuses, since the present invention does not promise that the division of different names necessarily corresponds to different entity apparatuses, it is still possible to divide the same entity apparatus into a plurality of modules/apparatuses having different names in the present invention as needed. In the present invention, for convenience of description, a distinction is made between the text descriptions of the modules herein, but this is not necessarily to be construed as: different functional modules/devices correspond to different devices. In the present invention, there is a possibility that a plurality of functional modules are integrated into one (one entity).

The invention provides the following convention for direction description: referring to fig. 1, the direction from the grease gun/grease gun connection 11 to the claw 14, i.e. the normal direction of delivery, i.e. the left side of fig. 1 is the inlet direction and the right side is the outlet direction. Any position in the present invention, when the above direction is described with respect to some components, can be interpreted from the above specification of the direction. For example, the inlet direction side (inlet end) of the body 12 is a side/end near the connecting portion 11, and the outlet direction side (outlet end) of the body 12 is a side/end near the claw piece attaching portion 13.

With continued reference to fig. 1, the connector is used to connect a grease gun to a grease nipple, and the grease gun is connected to the inlet end of a grease gun/grease gun outlet line connection 11 through an outlet line (not shown), said connection 11 may be in the form of a polygonal cylinder which may be screwed into secure (removable) connection with the body 12, the polygonal cylinder may facilitate the need for rotational fastening.

In a preferred embodiment, the outlet end of the grease gun outlet line connection 11 is integrally (non-destructively) connected to the body 12.

The body 12 of the present invention is a cylinder or the like having a through hole therein, and grease can pass through the body 12. The body 12 is provided with a first threaded hole 15 (i.e., a hole having a thread on the inner wall) on the outer wall. A claw piece attachment portion 13 is provided in the outlet direction of the body 12, and the attachment portion 13 may be fastened to the body 12 by means of a screw, a packing, or the like, or may be integrally connected to the body. A plurality of claw pieces 14 (grippers) are provided in the outlet direction of the attachment portion 13 in such a manner that they can be detachably fastened (not movably placed with holding grooves as in the prior art), but are preferably integrally connected (i.e., integrally molded, and non-destructively detachable). The claws 14 are provided with claw piece gaps 16 therebetween, and the advantage of providing the claw piece gaps 16 will be further explained in the following description. The number of claws 14 can be 3, 4, 5, 6, 7, 8, 9, 10, preferably 6.

The main body 12 and the claw piece attachment portion 13 may be provided with a conventional oil delivery passage or may be provided with other creative designs, for example, functions of preventing backflow and the like may be realized by a spring, a valve ball and the like. As an example of a certain type, the installation method may be any one of the installation methods in the prior art 1 to 6.

Referring to fig. 2, a handle/trigger 21 is rotatably connected to the body 12. In particular, the handle 21 may be connected to the body 12 by a first screw/bolt 23 and a first threaded hole 15, wherein the first screw/bolt 23 is threaded through a hole in the handle 21 and into the first threaded hole 15.

The handle 21 also comprises a further bore, through which, together with the axial fixing 24, a connecting piece 22 is arranged on the handle 21. Wherein the function of the axial fixing portion 24 is to allow a central rotational movement (even if sometimes only within a certain angular range) of the connecting piece 22 relative to the handle 21, but not an axial separating movement. The axial fixing lug 22 is a part which comprises two through holes at both ends and is used for pulling the device connected to the two through holes. One through hole of the connecting piece 22 is used for rotationally and axially fixing the connecting handle 21 and the connecting piece 22 by means of the axial fixing portion 24.

Referring to fig. 3, the outlet direction end of the claw piece attaching portion 13 is provided with a plurality of claw pieces 14. Preferably, the claw piece 14 has a certain length and flexibility so that its outlet direction end can have a certain deformation capability. The provision of the claw piece clearance 16, in turn, provides a space/structure possibility for deformation of the plurality of claw pieces 14 toward the axial center lines of the plurality of claw pieces.

The sleeve 32 is provided with second screw holes 31 (a pair of screw holes are oppositely arranged, one of the other side is not shown, and the number of the first screw holes 15, the first screws 23 and the second screws 51 is also 2). Wherein, preferably, the second screw hole/screw hole 31 is provided at a position on one side in the inlet direction of the sleeve 31; preferably, the diameter of the sleeve at the location of the second threaded hole 31 is larger than the diameter of the sleeve at other locations of the sleeve.

The inner wall of the sleeve 32 may be cylindrical, but an annular flange (not shown, refer to the embodiment of the sleeve protrusion 40 of the prior art 3; the present invention is not limited to a specific shape, and may be a plurality of discrete particle points) is provided on the inner wall of the outlet end (the sleeve port 33) of the sleeve 32, and the annular flange is provided to press the claws 14 inward (all of which can be regarded as an annular flange in the present invention).

In certain embodiments, the sleeve 32 is disposed outside the claw piece attachment portion 13 and the claw piece 14, and can be manually moved along the axial direction of the sleeve 32 by a user.

In certain embodiments, the sleeve 32 may merely fit over the plurality of fingers 14, which may be manually moved along the axial direction of the sleeve 32 by a user.

To facilitate the deformation, the outlet-direction end of the claw 14 is contoured in a curved shape (see fig. 3, the claw 14 has a curvature in side view), which during the movement of the above-mentioned annular flange (including its attached sleeve 32 itself) against the oil-conveying direction will press against the curved claw 14. This makes it easier for the outlet-direction ends of the claw pieces 14 to be deformed toward the axial center lines of the plurality of claw pieces 14.

Referring to fig. 4, another through hole of the axial fixing lug (22) is used for connection with the sleeve (32) by means of a second screw/bolt (51) and a second threaded hole (31). In the state of fig. 4, the sleeve 32 and the claw 14 are in a non-pressed state. The aperture size of the opening formed between the claw pieces 14 is set so as to be suitable for the state in which the oil nipple can be put into the claw pieces 14 corresponding to the state of the connector at the time of the pre-engagement/post-disengagement state. The positions of the fixing portion 24, the first screw/bolt 23 and the second screw/bolt 51 are in a triangular relation.

Referring to fig. 5, after the nozzle tip is inserted into the claw piece of the connector in the state of fig. 4, when the user presses the handle 21, the handle 21 is rotated with respect to the first screw/bolt 23, the axial fixing portion 24 connected to the handle 21 is also moved, and finally the positions of the fixing portion 24, the first screw/bolt 23, and the second screw/bolt 51 are in a linear state relationship and maintained. In doing so, the axially securing tabs 22 pull the sleeve 32 against the flow of oil (i.e., in a direction opposite the flow direction) and then maintain engagement with the nozzle tip.

The annular flange on the inner wall of the sleeve port 33 of the sleeve 32 thus presses the finger 14, which facilitates the movement/deformation of the finger 14 towards its axis, due to the curved shape of the finger 14. The locking lugs 14 will greatly facilitate the connector's gripping of the nipple since the nipple is already placed inside the lugs.

Referring to fig. 6, the left side shows a state where the user does not press the handle, the claw 14 is in a natural state, an opening hole formed at the outlet end thereof facilitates the insertion of the oil nipple into the claw, and the claw gap 16 is in a maximum state.

When the handle is pressed down, the annular flange on the inner wall of the sleeve port 33 presses the claw piece 14, the claw piece gap 16 becomes smaller, and the oil nozzle is not easy to break loose under the oil filling state.

After the oil has been applied, the user pushes back on the handle, the sleeve 32 moves in the direction of the oil delivery, the deformation of the claws 14 is restored after the squeezing thereof has disappeared, and the connector can be easily detached from the nozzle by the user. Thereby completing a normal refueling process.

It is not difficult to find the aperture of the opening before and after occlusion, the aperture of the opening before occlusion (left figure) is larger than the aperture of the opening after occlusion (right figure), the former is favorable for placing the oil nozzle, and the latter is favorable for clenching the oil nozzle.

With continued reference to FIG. 6, a seal 61 is preferably provided inside the sleeve 32 to prevent oil leakage. In the center of the seal 61, an oil outlet through hole is provided.

The foregoing is a preferred description of some embodiments of the invention and the foregoing description is only a description of some embodiments including certain features/techniques in a reasonable combination (unless it is not a logical decision) to achieve a specific reasonable embodiment. Moreover, since certain features may be avoided or replaced, and certain features may not be implemented, the foregoing fair combinations include embodiments lacking certain features. Finally, since the drawings in the specification are necessarily to scale, showing only selected embodiments, rather than all embodiments, some features may not be implemented, and some features may be implemented in other forms of substitute features/means, the drawings in the specification are not intended to be construed as a basis for the claims.

The present invention is not intended to be an exhaustive description of any details of the grease gun connector to which the present disclosure relates, and some details not described may be devised by those skilled in the art based on the knowledge of those skilled in the art. However, even if the design of the part is inventive and/or advanced, the technical features covered by the claims of the present invention can be utilized, and the technical solution also falls into the protection scope of the present invention.

The above examples are illustrative of the preferred design of the invention, and the actual scope of protection is determined by the claims that follow the patent laws and their associated rules, and the contents of this specification can be used to interpret the specific/further meaning of the claims. Any such modifications or changes that come within the spirit of the invention are desired to be protected by the following claims without departing from the spirit of the invention, and the applicant hereby fully claims and hereby disclaims the doctrine of equivalents in the light of the patent statutes to incorporate such doctrine of equivalents into the scope of the claims and to achieve the same spirit of legal interest to the inventors/patentees in keeping with the spirit of the patent statutes.

Table 1: list of reference numerals