阅读说明：本技术 一种金属阀杆安装前处理装置 (Processing apparatus before metal valve rod installation ) 是由 方坤棉 朱乐乐 于 2019-11-06 设计创作，主要内容包括：本发明涉及一种金属阀杆安装前处理装置,包括支撑板、按压架、侧立板、联动机构和刮除机构,所述的支撑板的中部上设置有圆槽,支撑板的上方分布有按压架,按压架为U型结构,按压架的外端穿过支撑板,支撑板的底部左右两端均分布有一个侧立板,侧立板的中部设置有方槽,侧立板上的方槽的侧壁开设有滑槽,每个侧立板上均连接有一个联动机构,每个联动机构的内侧面均安装有一个刮除机构。本发明可以解决现有金属阀杆涂抹油脂时存在的：金属阀杆涂抹油脂的位置无法限位,使得金属阀杆无需涂抹油脂的位置处也会粘上油脂、金属阀杆上多余的油脂一般采用刮板进行刮除,刮板无法对金属阀杆上油脂进行均匀刮除。(The invention relates to a metal valve rod installation pretreatment device which comprises a supporting plate, a pressing frame, side vertical plates, a linkage mechanism and a scraping mechanism, wherein a circular groove is formed in the middle of the supporting plate, the pressing frame is distributed above the supporting plate and is of a U-shaped structure, the outer end of the pressing frame penetrates through the supporting plate, the side vertical plates are uniformly distributed at the left end and the right end of the bottom of the supporting plate, a square groove is formed in the middle of each side vertical plate, a sliding groove is formed in the side wall of each square groove in each side vertical plate, the linkage mechanism is connected to each side vertical plate, and the scraping mechanism is installed on the inner side face of each linkage mechanism. The invention can solve the problems existing when the prior metal valve rod is smeared with grease: the position that the metal valve rod paintd the grease can't be spacing for the position department that the metal valve rod need not to paint the grease also can glue grease, metal valve rod and go up unnecessary grease and generally adopt the scraper blade to strike off, and the scraper blade can't evenly strike off the grease on the metal valve rod.)

1. The utility model provides a processing apparatus before metal valve rod installation, includes backup pad (1), presses frame (2), side riser (4), link gear (5) and strikes off mechanism (6), its characterized in that: a circular groove is formed in the middle of the supporting plate (1), a pressing frame (2) is distributed above the supporting plate (1), the pressing frame (2) is of a U-shaped structure, the outer end of the pressing frame (2) penetrates through the supporting plate (1), a side vertical plate (4) is distributed at each of the left end and the right end of the bottom of the supporting plate (1), a square groove is formed in the middle of the side vertical plate (4), a sliding groove is formed in the side wall of the square groove in the side vertical plate (4), each side vertical plate (4) is connected with a linkage mechanism (5), and a scraping mechanism (6) is mounted on the inner side surface of each linkage mechanism (5); wherein:

the linkage mechanism (5) comprises a linkage telescopic column (51), a blocking frame (52), a blocking spring (53), a sliding support (54), a sliding plate (55) and a reset spring (56), the left end of the linkage telescopic column (51) is of a telescopic structure, the middle of the linkage telescopic column (51) is located in a square groove of the side vertical plate (4), the linkage telescopic column (51) is in sliding fit with a sliding groove of the square groove on the side vertical plate (4), the upper side surface of the middle of the linkage telescopic column (51) is installed on the inner wall of the upper side of the square groove on the side vertical plate (4) through the blocking spring (53), the blocking frame (52) is of an L-shaped structure, and the right end of the blocking frame (52) is installed on the left side surface of the upper end of the side vertical plate (4);

the sliding support (54) is located on the right side of the side vertical plate (4), the sliding support (54) is of an L-shaped structure, the sliding support (54) is installed on the bottom of the supporting plate (1), a sliding groove is formed in the lower side face of the left end of the sliding support (54), the top of the sliding plate (55) is connected with the sliding groove in the sliding support (54) in a sliding fit mode, the right side face of the upper end of the sliding plate (55) is installed on the sliding support (54) through a return spring (56), and the left side face of the sliding plate (55) is of a stepped structure;

the middle part of the pressing frame (2) is provided with a circular groove, the position of the circular groove on the pressing frame (2) corresponds to the position of the circular groove on the supporting plate (1), the left side wall and the right side wall of the circular groove on the pressing frame (2) are respectively provided with a T-shaped hole, the inner end of each T-shaped hole on the pressing frame (2) is provided with a locking frame (21), the inner end of each locking frame (21) is of an arc-shaped structure, the inner side surface of each locking frame (21) is provided with a flexible jacket, the middle part of each locking frame (21) is provided with a pulling body (22), each pulling body (22) penetrates through the pressing frame (2), and the outer side surface of each locking frame (21) is installed on the inner wall of the outer end of the T-shaped groove on the pressing frame (2) through a pressing spring (23).

2. The pretreatment device for installation of a metal valve rod according to claim 1, wherein: strike off mechanism (6) including striking off telescopic link (61), expanding spring (62), flexible even board (63), strike off cover (64) and firm spring (65), the left end of striking off telescopic link (61) is installed on the right flank of sliding plate (55), strike off and install flexible even board (63) on the right-hand member of telescopic link (61), the cover is equipped with expanding spring (62) on the outer end of striking off telescopic link (61), strike off cover (64) and pass through the hinge mount on the right flank of flexible even board (63), strike off and be connected with firm spring (65) between cover (64) and flexible even board (63).

3. The pretreatment device for installation of a metal valve rod according to claim 1, wherein: the lower extreme right flank of pressing down frame (2) on be provided with linkage ejector pad (24), linkage ejector pad (24) are trapezium structure, the left end of linkage flexible post (51) is provided with the triangular groove, the last guide block (57) that is provided with trapezium structure of the flexible structure of linkage flexible post (51) left end, the lower extreme right side that blocks frame (52) is provided with the inclined groove.

4. The pretreatment device for installation of a metal valve rod according to claim 1, wherein: and a roller groove is formed in the right end of the linkage telescopic column (51), and a roller is installed in the roller groove of the linkage telescopic column (51).

5. The pretreatment device for installation of a metal valve rod according to claim 1, wherein: the inner side face of the outer end of the pressing frame (2) is symmetrically provided with positioning grooves, a positioning lock column (26) is installed in each positioning groove of the pressing frame (2) through a positioning spring (25), the upper side face and the lower side face of the inner end of the positioning lock column (26) are inclined faces, and the positioning lock column (26) is attached to the upper side face of the supporting plate (1).

6. The pretreatment device for installation of the metal valve rod according to claim 2, wherein: the inner side surface of the scraping sleeve (64) is provided with three groups of scraping teeth, the scraping teeth in the middle of the scraping sleeve (64) are horizontally arranged, and the scraping teeth at the outer end of the scraping sleeve (64) are all arranged in an inward inclined manner.

Technical Field

The invention relates to the technical field of valve part processing, in particular to a metal valve rod installation pretreatment device.

Background

The metal valve rod is an important part of the valve, the upper end of the metal valve rod is connected with the executing mechanism or the handle, the lower end of the metal valve rod is connected with the valve core, and the valve core can be driven to rotate or move correspondingly through the rotation or the movement of the executing mechanism and the handle at the upper end of the metal valve rod so as to play a role in opening and closing or adjusting the valve.

The lower extreme of metal valve rod generally is provided with the external screw thread to increase its inseparable degree of being connected with the case, need scribble the one deck grease on the helicitic texture of metal valve rod lower extreme when metal valve rod is connected with the case, make the connection that the metal valve rod can be smooth and easy on the case, the metal valve rod is paintd the grease and is generally adopted artificial mode to paint it and scrape evenly, because the grease is thick more does not have mobility basically, thereby the valve rod is paintd the even degree of grease relatively poorly, the problem that exists when the grease is paintd to the metal valve rod to the current is as follows:

1. the lower end of the metal valve rod is stuck with grease by adopting a manual insertion mode, and the position of the metal valve rod, which is smeared with the grease, cannot be limited, so that the position of the metal valve rod, which is not smeared with the grease, can be stuck with the grease;

2. unnecessary grease generally adopts the scraper blade to strike off on the metal valve rod, and the scraper blade can't evenly strike off grease on to the metal valve rod, and can pile up a large amount of greases in the metal valve rod lower extreme threaded hole to influence the grafting of metal valve rod and valve body.

Disclosure of Invention

In order to solve the problems, the invention provides a metal valve rod installation pretreatment device which comprises a supporting plate, a pressing frame, side vertical plates, a linkage mechanism and a scraping mechanism, wherein a circular groove is formed in the middle of the supporting plate, the pressing frame is distributed above the supporting plate and is of a U-shaped structure, the outer end of the pressing frame penetrates through the supporting plate, the left end and the right end of the bottom of the supporting plate are uniformly distributed with the side vertical plates, a square groove is formed in the middle of each side vertical plate, a sliding groove is formed in the side wall of the square groove in each side vertical plate, each side vertical plate is connected with the linkage mechanism, the inner side surface of each linkage mechanism is provided with the scraping mechanism, the supporting plate is firstly locked above a grease barrel, then a valve rod is placed in the middle of the pressing frame, the middle of the valve rod is positioned in the circular groove of the supporting plate, and the lower end of the valve rod, and then the pressing frame is pulled upwards, and the scraping mechanism can scrape redundant grease on the outer side surface of the valve rod completely when the valve rod moves upwards.

The linkage mechanism comprises a linkage telescopic column, a blocking frame, a blocking spring, a sliding support, a sliding plate and a reset spring, wherein the left end of the linkage telescopic column is of a telescopic structure, the middle part of the linkage telescopic column is positioned in a square groove of a side vertical plate, the linkage telescopic column is in sliding fit with a sliding groove of the square groove on the side vertical plate, the upper side surface of the middle part of the linkage telescopic column is installed on the inner wall of the upper side of the square groove on the side vertical plate through the blocking spring, the blocking frame is of an L-shaped structure, and the right end of the blocking frame is installed on the left side surface of the upper end of;

the sliding support is located on the right side of the side vertical plate, the sliding support is of an L-shaped structure, the sliding support is mounted on the bottom of the support plate, a sliding groove is formed in the lower side face of the left end of the sliding support, the top of the sliding plate is connected with the sliding groove in the sliding support in a sliding fit mode, the right side face of the upper end of the sliding plate is mounted on the sliding support through a return spring, the left side face of the sliding plate is of a stepped structure, and in specific work, the linkage mechanism can drive the scraping mechanism to move inwards when the pressing frame moves upwards, so that the scraping mechanism can perform scraping action on excess grease on.

The middle part of the pressing frame is provided with a circular groove, the position of the circular groove on the pressing frame corresponds to the position of the circular groove on the supporting plate, the left side wall and the right side wall of the circular groove on the pressing frame are respectively provided with a T-shaped hole, the inner end of each T-shaped hole on the pressing frame is provided with a locking frame, the inner end of each locking frame is of an arc structure, the inner side surface of each locking frame is provided with a flexible jacket, the middle part of each locking frame is provided with a pulling body, the pulling body penetrates through the pressing frame, the outer side surface of each locking frame is arranged on the inner wall of the outer end of the T-shaped groove on the pressing frame through a pressing spring, the locking frame can be clamped on the outer side surface of the upper end of the valve rod under the action of the pressing spring, so that the valve rod can be locked, and the valve rod can be positioned in the middle of the pressing frame, and the outward pulling of the pulling body can release the locking action of the locking frame on the valve rod, so that the valve rod can be taken down from the invention.

As a preferred technical scheme of the invention, the scraping mechanism comprises a scraping telescopic rod, an expansion spring, an expansion connecting plate, a scraping sleeve and a stabilizing spring, the left end of the scraping telescopic rod is arranged on the right side surface of the sliding plate, the right end of the scraping telescopic rod is provided with the expansion connecting plate, the outer end of the scraping telescopic rod is sleeved with the expansion spring, the scraping sleeve is arranged on the right side surface of the expansion connecting plate through a hinge, the stabilizing spring is connected between the scraping sleeve and the expansion connecting plate, the scraping mechanism can scrape the valve rod, when the valve rod moves upwards along with the pressing frame, the scraping sleeve can be pressed against the side surface of the valve rod with a certain force, so that the scraping sleeve can automatically expand and contract when in contact with the thread on the valve rod, and the thread on the valve rod can be driven to rotate by a certain angle when in contact with the scraping sleeve, so that the grease can be scraped on the valve, the scraping effect of the invention on grease on the valve rod is increased.

As a preferred technical scheme of the invention, a linkage push block is arranged on the right side surface of the lower end of a pressing frame, the linkage push block is in a trapezoidal structure, a triangular groove is arranged at the left end of a linkage telescopic column, a guide block in the trapezoidal structure is arranged on the telescopic structure at the left end of the linkage telescopic column, an inclined groove is arranged at the right side of the lower end of a blocking frame, when the pressing frame moves downwards and the linkage push block is in contact with the left end of the linkage telescopic column, the linkage push block can press the linkage telescopic column to contract inwards, so that the linkage push block can move to the lower end of the linkage telescopic column, the lower end of a valve rod can extend into a grease barrel at the moment, the pressing frame is manually pulled upwards after the valve rod is adhered with grease, the linkage push block can push the linkage telescopic column upwards, when the linkage telescopic column moves upwards and is in contact with the stepped structure of a sliding plate, a scraping mechanism can be pushed inwards, and can complete the, according to the linkage telescopic column, the valve rod can be scraped at the position where the valve rod is adhered to grease, and the scraping mechanism cannot be in contact with the valve rod when the valve rod moves downwards, so that the grease on the scraping mechanism cannot be coated at the position where the valve rod is not required to be coated with the grease, when the guide block on the linkage telescopic column is in contact with the blocking frame, the left end of the linkage telescopic column is controlled to contract inwards, the linkage telescopic column is separated from the linkage push block, the linkage telescopic column can return to the initial position under the action of the blocking spring, and the sliding plate can move outwards to the initial position under the action of the reset spring.

As a preferred technical scheme of the invention, the right end of the linkage telescopic column is provided with a roller groove, a roller is arranged in the roller groove of the linkage telescopic column, and the roller on the linkage telescopic column can increase the smoothness of the linkage telescopic column.

As a preferred technical scheme of the invention, the inner side surface of the outer end of the pressing frame is symmetrically provided with positioning grooves, a positioning lock column is arranged in each positioning groove of the pressing frame through a positioning spring, the upper side surface and the lower side surface of the inner end of each positioning lock column are inclined surfaces, the positioning lock columns are attached to the upper side surface of the supporting plate and can abut against the supporting plate, so that the initial position of the pressing frame is positioned.

As a preferred technical scheme of the invention, three groups of scraping teeth are arranged on the inner side surface of the scraping sleeve, the scraping teeth in the middle of the scraping sleeve are horizontally arranged, the scraping teeth at the outer end of the scraping sleeve are all arranged in an inward inclined manner, the three groups of scraping teeth on the scraping sleeve can increase the scraping effect of the scraping sleeve on the valve rod, and the three groups of scraping teeth can stably abut against the outer side surface of the valve rod, so that the stability of the scraping sleeve on scraping grease on the valve rod is increased.

The invention has the beneficial effects that:

the valve rod can move downwards to be adhered with grease and scrape redundant grease on the outer side face of the valve rod, and uniformity of the grease on the outer side face of the valve rod is improved;

the locking frame can be clamped on the outer side face of the upper end of the valve rod under the action of the pressing spring, so that the valve rod can be locked, and the flexible jacket on the inner side face of the locking frame can increase the clamping tightness of the valve rod;

thirdly, under the matching action of the linkage push block and the linkage telescopic column, the scraping mechanism cannot be contacted with the valve rod when the valve rod moves downwards, so that grease on the scraping mechanism cannot be coated on the position of the valve rod where the grease is not required to be coated;

the three groups of scraping teeth on the scraping sleeve can increase the scraping effect of the scraping sleeve on the valve rod, and the three groups of scraping teeth can stably abut against the outer side surface of the valve rod, so that the stability of the scraping sleeve on scraping the valve rod grease is increased.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view between the support plate and the pressing frame of the present invention;

fig. 3 is a cross-sectional view of the support plate, the pressing frame, the side vertical plate, the link mechanism and the scraping mechanism of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1 to 3, a metal valve rod installation pretreatment device comprises a support plate 1, a pressing frame 2, side vertical plates 4, a linkage mechanism 5 and a scraping mechanism 6, wherein a circular groove is arranged in the middle of the support plate 1, the pressing frame 2 is distributed above the support plate 1, the pressing frame 2 is of a U-shaped structure, the outer end of the pressing frame 2 penetrates through the support plate 1, the side vertical plates 4 are uniformly distributed at the left end and the right end of the bottom of the support plate 1, a square groove is arranged in the middle of each side vertical plate 4, a sliding groove is formed in the side wall of the square groove in each side vertical plate 4, the linkage mechanism 5 is connected to each side vertical plate 4, the scraping mechanism 6 is arranged on the inner side surface of each linkage mechanism 5, the support plate 1 is firstly locked above a grease barrel, then a valve rod is placed in the middle of the pressing frame 2, the middle of the valve rod is positioned in the circular groove of the support plate 1, the lower end of the valve rod, then the pressing frame 2 is pulled upwards, and the scraping mechanism 6 can scrape excess grease on the outer side surface of the valve rod completely when the valve rod moves upwards.

Press 2 outer end medial surfaces on the symmetry be provided with the constant head tank, all install a location lock post 26 through positioning spring 25 in every constant head tank of pressing frame 2, the side is the inclined plane about the inner of location lock post 26, and location lock post 26 pastes on the last side of backup pad 1, location lock post 26 can support on backup pad 1 for the initial position of pressing frame 2 obtains the location.

The middle part of the pressing frame 2 is provided with a circular groove, the position of the circular groove on the pressing frame 2 corresponds to the position of the circular groove on the support plate 1, the left and right side walls of the circular groove on the pressing frame 2 are respectively provided with a T-shaped hole, the inner end of each T-shaped hole on the pressing frame 2 is provided with a locking frame 21, the inner end of each locking frame 21 is of an arc structure, the inner side surface of each locking frame 21 is provided with a flexible jacket, the middle part of each locking frame 21 is provided with a pulling body 22, the pulling body 22 penetrates through the pressing frame 2, the outer side surface of each locking frame 21 is arranged on the inner wall of the outer end of the T-shaped groove on the pressing frame 2 through a pressing spring 23, during specific work, the locking frame 21 can be clamped on the outer side surface of the upper end of the valve rod under the action of the pressing spring 23, so that the valve rod can be locked, the valve rod can be positioned in the middle part of the pressing frame 2, and the pulling body 22 outwards can, so that the valve stem can be removed from the present invention.

The linkage mechanism 5 comprises a linkage telescopic column 51, a blocking frame 52, a blocking spring 53, a sliding support 54, a sliding plate 55 and a return spring 56, the left end of the linkage telescopic column 51 is of a telescopic structure, the middle part of the linkage telescopic column 51 is positioned in a square groove of the side vertical plate 4, the linkage telescopic column 51 is in sliding fit with a sliding groove of the square groove on the side vertical plate 4, the upper side surface of the middle part of the linkage telescopic column 51 is installed on the upper inner wall of the square groove on the side vertical plate 4 through the blocking spring 53, the blocking frame 52 is of an L-shaped structure, and the right end of the blocking frame 52 is installed on the left side surface of the upper end of the side vertical plate 4;

the sliding support 54 is located on the right side of the side standing plate 4, the sliding support 54 is of an L-shaped structure, the sliding support 54 is mounted on the bottom of the supporting plate 1, a sliding groove is formed in the lower side surface of the left end of the sliding support 54, the top of the sliding plate 55 is connected with the sliding groove in the sliding support 54 in a sliding fit manner, the right side surface of the upper end of the sliding plate 55 is mounted on the sliding support 54 through a return spring 56, the left side surface of the sliding plate 55 is of a stepped structure, and in particular during operation, the linkage mechanism 5 can drive the scraping mechanism 6 to move inwards when the pressing frame 2 moves upwards, so that the scraping mechanism 6 can perform a scraping action on excess grease.

The right end of the linkage telescopic column 51 is provided with a roller groove, a roller is arranged in the roller groove of the linkage telescopic column 51, and the roller on the linkage telescopic column 51 can increase the smoothness of the linkage telescopic column.

The right side surface of the lower end of the pressing frame 2 is provided with a linkage push block 24, the linkage push block 24 is of a trapezoidal structure, the left end of the linkage telescopic column 51 is provided with a triangular groove, the telescopic structure at the left end of the linkage telescopic column 51 is provided with a guide block 57 of the trapezoidal structure, the right side of the lower end of the blocking frame 52 is provided with an inclined groove, when the pressing frame 2 moves downwards and the linkage push block 24 is contacted with the left end of the linkage telescopic column 51, the linkage push block 24 can press the linkage telescopic column 51 to contract inwards, so that the linkage push block 24 can move to the lower end of the linkage telescopic column 51, the lower end of the valve rod can extend into a grease barrel at the moment, the pressing frame 2 is manually pulled upwards after the valve rod is adhered with grease, the linkage push block 24 can push the linkage telescopic column 51 upwards, the linkage telescopic column 51 moves upwards and can push the scraping mechanism 6 inwards when being contacted with the stepped scraping structure of the sliding plate 55, and the valve rod scraping action can be, according to the arrangement of the invention, the valve rod can be scraped at the position where grease is adhered, and the scraping mechanism 6 cannot be contacted with the valve rod when the valve rod moves downwards, so that the grease on the scraping mechanism 6 cannot be coated at the position where the grease is not required to be coated on the valve rod, when the guide block 57 on the linkage telescopic column 51 is contacted with the blocking frame 52, the left end of the linkage telescopic column 51 is controlled to contract inwards, so that the linkage telescopic column 51 is separated from the linkage push block 24, the linkage telescopic column 51 can return to the initial position under the action of the blocking spring 53, and the sliding plate 55 moves outwards to the initial position under the action of the return spring 56.

The scraping mechanism 6 comprises a scraping telescopic rod 61, an expansion spring 62, an expansion connecting plate 63, a scraping sleeve 64 and a stabilizing spring 65, the left end of the scraping telescopic rod 61 is arranged on the right side surface of the sliding plate 55, the right end of the scraping telescopic rod 61 is provided with the expansion connecting plate 63, the outer end of the scraping telescopic rod 61 is sleeved with the expansion spring 62, the scraping sleeve 64 is arranged on the right side surface of the expansion connecting plate 63 through a hinge, the stabilizing spring 65 is connected between the scraping sleeve 64 and the expansion connecting plate 63, the scraping mechanism 6 can scrape the valve rod, when the valve rod moves upwards along with the pressing frame 2, the scraping sleeve 64 can be pressed against the side surface of the valve rod with a certain force, so that the scraping sleeve 64 can automatically expand when in contact with the thread on the valve rod, and the thread on the valve rod can be driven to rotate by a certain angle when in contact with the scraping sleeve 64, so that the grease can be scraped from the valve rod at, the scraping effect of the invention on grease on the valve rod is increased.

Strike off the medial surface of cover 64 on be provided with three groups and scrape the tooth, strike off the tooth level of scraping at cover 64 middle part and arrange, strike off the equal leanin arrangement of tooth of scraping of cover 64 outer end, strike off three groups on the cover 64 and scrape the tooth and can increase the effect of scraping off cover 64 to the valve rod, and three groups scrape off can be stable support on the lateral surface of valve rod, increase and strike off the stability that cover 64 scraped off valve rod grease.

When the linkage pushing block 24 moves downwards to be in contact with the left end of the linkage telescopic column 51, the linkage pushing block 24 can press the linkage telescopic column 51 to contract inwards, and the linkage pushing block 24 can move to the lower end of the linkage telescopic column 51;

after the valve rod is adhered with grease, the pressing frame 2 is pulled upwards, the linkage pushing block 24 can push the linkage telescopic column 51 upwards, the linkage telescopic column 51 moves upwards and can push the scraping mechanism 6 inwards when contacting with the step-shaped structure of the sliding plate 55, the scraping mechanism 6 can complete the scraping action on the valve rod, the scraping sleeve 64 can be pressed against the side surface of the valve rod with a certain force, so that the scraping sleeve 64 can automatically stretch when contacting with the thread on the valve rod, and the thread on the valve rod can drive the scraping sleeve 64 to rotate at a certain angle when contacting with the thread, so that the grease can be scraped on the valve rod at different scraping angles, three groups of scraping teeth on the scraping sleeve 64 can increase the scraping effect of the scraping sleeve 64 on the valve rod, and the three groups of scraping teeth can stably press against the outer side surface of the valve rod, thereby increasing the grease scraping stability of the scraping sleeve 64 on the valve rod, when the stem process is complete, it can be removed by pulling toggle 22 outward.

The valve rod can move downwards to stick grease and scrape redundant grease on the outer side face of the valve rod, and uniformity of the grease on the outer side face of the valve rod is improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.