CN212947560U - Rotary drawing tool - Google Patents

Abstract

The utility model discloses a rotation type drawing tool, include: the sleeve is internally provided with a plurality of limiting strips arranged along the axial direction of the sleeve, and each limiting strip is provided with a limiting lug and a guide wheel; the drawing assembly comprises a drawing head and a screw rod arranged on the drawing head, an axially arranged limiting groove is formed in the drawing head, the limiting lug and the guide wheel are both arranged in the limiting groove, the guide wheel is abutted against the inner side wall of the limiting groove, and the drawing head is arranged in the sleeve and can move along the sleeve; the rotating head is arranged at the top of the sleeve, a handle is arranged on the rotating head, and the screw rod is arranged on the rotating head in a penetrating mode and is in threaded connection with the rotating head. The utility model discloses change the rotary motion into the operation of drawing of part, it is big to draw the dynamics, has good dismouting function.

Description

Rotary drawing tool

Technical Field

The utility model relates to a dismouting technical field, in particular to rotation type drawing tool.

Background

In the field of machine manufacturing, interference fit pin-like components or other components insertedly connected to equipment or large equipment are commonly used, such as valve cores located in hot runners of injection molding machines, pins in injection molding machines, and the like. The existing method is that workers usually remove the parts through pliers or wrenches, so that labor is wasted, the labor strength of the workers is tested, time and labor are consumed, and the parts are inconvenient to remove.

Some link structures such as threaded connection holes are arranged in the middle of the part so as to facilitate the dismounting process, and the existing manual work is troublesome in dismounting through directly pulling out the part forcibly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a rotation type drawing tool changes the rotary motion into the operation of drawing of part, and it is big to draw the dynamics, has good dismouting function.

According to the utility model discloses a rotation type pulling tool of first aspect embodiment includes: the sleeve is internally provided with a plurality of limiting strips arranged along the axial direction of the sleeve, and each limiting strip is provided with a limiting lug and a guide wheel; the drawing assembly comprises a drawing head and a screw rod arranged on the drawing head, an axially arranged limiting groove is formed in the drawing head, the limiting lug and the guide wheel are both arranged in the limiting groove, the guide wheel is abutted against the inner side wall of the limiting groove, the drawing head is arranged in the sleeve and can move along the sleeve, and a connecting structure is arranged at the bottom of the drawing head; the rotating head is arranged at the top of the sleeve, a handle is arranged on the rotating head, and the screw rod is arranged on the rotating head in a penetrating mode and is in threaded connection with the rotating head.

According to the utility model discloses instrument is drawn to rotation type has following beneficial effect at least: the rotary motion of the rotating head is converted into the ascending motion of the drawing assembly, the drawing force is greatly improved by utilizing the lever principle, and the drawing mechanism is suitable for tight interference fit; utilize the structure of spacing lug, leading wheel and spacing groove, the rotating head is rotating the in-process, keeps the drawing head can not rotatory when drawing, ingenious realization with rotary motion conversion for rectilinear drawing motion, the leading wheel structure still possesses the effect that reduces spacing friction when possessing limit function, spacing lug has then improved limit structure's spacing ability.

According to the utility model discloses a some embodiments, the sleeve with be equipped with the locating part between the rotating head, be equipped with on the locating part to the spacing notch of one side open-ended, the inboard of spacing notch be equipped with the semi-circular curved surface of screw rod looks adaptation, the screw rod is worn to establish in the spacing notch.

According to the utility model discloses a some embodiments, the nozzle department at sleeve top is equipped with the ladder face, be equipped with the limiting flange with ladder face looks adaptation on the locating part.

According to the utility model discloses a some embodiments, telescopic inboard is equipped with a plurality of mounting grooves, spacing passes through the mounting screw and installs in the mounting groove.

According to some embodiments of the utility model, spacing is equipped with two and winds around the sleeve axis symmetry sets up on the telescopic inside wall.

According to some embodiments of the utility model, spacing lug sets up the both ends of spacing, the top of spacing groove forms the bayonet socket with the upper end of drawing the head.

According to the utility model discloses a some embodiments, the bottom of rotating head is equipped with can overlap the cover portion of establishing at the sleeve upper end.

According to some embodiments of the invention, the connection structure is a threaded connection.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic diagram of the internal structure of the embodiment of the present invention;

FIG. 3 is a schematic structural view of the stopper bar shown in FIG. 2;

FIG. 4 is a top structural view of the sleeve shown in FIG. 2;

FIG. 5 is a schematic structural view of the drawing assembly shown in FIG. 2;

fig. 6 is a schematic structural diagram of the limiting member shown in fig. 2.

Reference numerals:

the sleeve 100, the limiting strip 110, the guide wheel 120, the limiting lug 130 and the stepped surface 140;

a drawing head 210, a limit groove 211, a bayonet 212 and a screw 220;

a rotary head 300, a handle 310;

a connecting structure 400;

the limiting piece 500, the limiting notch 510 and the semicircular curved surface 511.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The rotary drawing tool according to an embodiment of the present invention will be described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, a rotary drawing tool comprises a sleeve 100, a drawing assembly and a rotating head 300, through holes are formed in the upper end and the lower end of the sleeve 100, a plurality of limiting strips 110 linearly arranged along the axial direction of the sleeve 100 are arranged in the sleeve 100, each limiting strip 110 is provided with a limiting lug 130 and a guide wheel 120, the limiting lugs 130 and the guide wheels 120 are linearly arranged inside the sleeve 100, the linear direction is arranged along the axial direction of the sleeve 100, the drawing assembly comprises a drawing head 210 and a screw 220 arranged on the drawing head 210, the drawing head is provided with a limiting groove 211 axially arranged, the axial direction is along the axial direction of the sleeve 100, the limiting lugs 130 and the guide wheels 120 are both arranged in the limiting grooves 211, the guide wheels 120 are abutted against the inner side walls of the limiting grooves 211, the drawing head 210 is arranged in the sleeve 100 and can move along the sleeve 100, and the limiting blocks and the guide wheels 120 on the limiting strips 110 limit the drawing head 210 to enable the drawing head 210 to be only capable of being capable The wires are oriented such that the drawing head 210 cannot rotate within the sleeve 100 relative to the sleeve 100. The bottom of the drawing head 210 is provided with a connecting structure, the connecting structure is used for connecting a workpiece to be drawn, and the drawing head 210 draws the workpiece through the connecting structure. The rotating head 300 is arranged at the top of the sleeve 100, the rotating head 300 can be arranged at the top of the sleeve 100 in a sleeved or rotating connection or direct abutting mode, a handle 310 is arranged on the rotating head 300, the screw rod 220 is arranged on the rotating head 300 in a penetrating mode and is in threaded connection with the rotating head 300, the handle 310 is used for rotating the rotating head 300, the pulling head 210 cannot move transversely in the sleeve 100 through the limit lug 130 and the guide wheel 120, and the rotating head 300 pulls the pulling head 210 to move upwards along the direction of the sleeve 100 through the screw rod 220 when rotating, so that a workpiece is pulled out.

The utility model discloses an in some embodiments, for pull-out head 210 better, avoid screw rod 220 scurrying in disorder drawing the in-process, be equipped with locating part 500 between sleeve 100 and rotating head 300, locating part 500 is used for restricting screw rod 220 and removes, be equipped with on the locating part 500 to an open-ended spacing notch 510, the inboard of spacing notch 510 is equipped with the semi-circular curved surface 511 with screw rod 220 looks adaptation, screw rod 220 gets into spacing notch 510 from the opening part, spacing notch 510 blocks the both sides of screw rod 220, certain spacing effect has, accomplish and stably draw the process.

In some embodiments of the present invention, the step surface 140 is disposed at the opening of the top of the sleeve 100, the step surface 140 is disposed at the top of the inner sidewall of the sleeve 100, the limiting flange adapted to the step surface 140 is disposed on the limiting member 500, the limiting member 500 is disposed at the top of the sleeve 100 and disposed in the sleeve 100 through the limiting flange, and is disposed between the rotating head 300 and the sleeve 100.

In some embodiments of the present invention, the inner side of the sleeve 100 is provided with a plurality of mounting grooves, the mounting grooves are adapted to the spacing strips 110, the spacing strips 110 are mounted in the mounting grooves by means of screws, the screw direction can fix the spacing strips 110 from the outer side of the sleeve 100 to the inner side, so as to set the spacing protrusions 130 and the guide wheel 120 in the sleeve 100.

Specifically, the two limiting strips 110 are symmetrically arranged on the inner side wall of the sleeve 100 around the axis of the sleeve 100, and the relative rotation movement of the drawing head 210 in the sleeve 100 is fixedly limited by the two sides.

In some embodiments of the utility model, spacing lug 130 sets up at the both ends of spacing strip 110, and the top of spacing groove 211 and the upper end of drawing head 210 form bayonet 212, and this bayonet 212 can block the spacing lug 130 that is located spacing strip 110 top, and when rotating head 300 loosened screw rod 220, drawing head 210 blocked through spacing lug 130 and bayonet 212, avoided wearing out downwards along sleeve 100.

The utility model discloses an in some embodiments, the bottom of rotating head 300 is equipped with can the cover and establish the cover portion in sleeve 100 upper end, and this cover portion is through being used for restricting rotating head 300 and rotating the relative sleeve 100 axle center removal of in-process, influences the application of force process. In addition, the rotary head 300 may be rotatably coupled to the sleeve 100 through a bearing to achieve a stable rotation process.

In some embodiments of the utility model, the connection structure is the threaded connection head, and this threaded connection is used for connecting the work piece, and the top of work piece is equipped with the internal thread hole, thereby the threaded connection head connects the internal thread hole and connects and draw subassembly and work piece. In addition, the connecting structure can also be a clamping structure or other connecting structures, and the workpiece can be connected within the implementation range of the utility model.

During specific implementation, the connecting structure is connected with the workpiece from the through opening at the bottom of the sleeve 100, the rotating head 300 is rotated to pull the drawing assembly, the workpiece is gradually drawn out, and the drawing process is completed.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (8)

1. A rotary drawing tool, comprising:

the sleeve comprises a sleeve (100), wherein a plurality of limiting strips (110) arranged along the axial direction of the sleeve (100) are arranged in the sleeve (100), and each limiting strip (110) is provided with a limiting convex block (130) and a guide wheel (120);

the drawing assembly comprises a drawing head (210) and a screw (220) arranged on the drawing head (210), wherein the drawing head (210) is provided with a limit groove (211) which is axially arranged, the limit lug (130) and the guide wheel (120) are both arranged in the limit groove (211), the guide wheel (120) is abutted against the inner side wall of the limit groove (211), the drawing head (210) is arranged in the sleeve (100) and can move along the sleeve (100), and the bottom of the drawing head (210) is provided with a connecting structure (400);

the rotary head (300) is arranged at the top of the sleeve (100), a handle (310) is arranged on the rotary head (300), and the screw (220) is arranged on the rotary head (300) in a penetrating mode and is in threaded connection with the rotary head (300).

2. The rotary drawing tool according to claim 1, wherein a limiting member (500) is disposed between the sleeve (100) and the rotating head (300), a limiting recess (510) opened to one side is disposed on the limiting member (500), a semicircular curved surface (511) adapted to the screw (220) is disposed on an inner side of the limiting recess (510), and the screw (220) is inserted into the limiting recess (510).

3. The rotary drawing tool according to claim 2, wherein a stepped surface (140) is provided at a throat of the top of the sleeve (100), and a stop flange adapted to the stepped surface (140) is provided on the stopper (500).

4. The rotary drawing tool according to claim 1, wherein the sleeve (100) is provided at an inner side thereof with mounting grooves, and the stopper bar (110) is mounted in the mounting grooves by screws.

5. The rotary drawing tool according to claim 1, wherein the stopper bar (110) is provided in two and symmetrically arranged on the inner side wall of the sleeve (100) around the axis of the sleeve (100).

6. The rotary drawing tool according to claim 1, wherein the limiting protrusions (130) are provided at both ends of the limiting strip (110), and the top ends of the limiting grooves (211) and the upper end of the drawing head (210) form bayonets (212).

7. The rotary drawing tool according to claim 1, wherein the bottom of the rotating head (300) is provided with a sleeve portion capable of being fitted over the upper end of the sleeve (100).

8. The rotary pulling tool according to claim 1, wherein the connection structure (400) is a threaded connection head.

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