CN111425657A

CN111425657A - Laborsaving valve rod convenient to installation

Info

Publication number: CN111425657A
Application number: CN202010232781.2A
Authority: CN
Inventors: 杨选中; 杨聪
Original assignee: Wenzhou Zhonghai Valve Forging Co ltd
Current assignee: Wenzhou Zhonghai Valve Forging Co ltd
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2020-07-17

Abstract

The invention discloses a labor-saving valve rod convenient to install, which comprises a top disc, an upper rod and a lower rod, wherein the upper rod is integrally formed and connected with the bottom end of the top disc, the lower rod is rotatably and movably arranged at the bottom end of the upper rod, a first gear is fixedly connected to the central shaft of the bottom end of the upper rod, the bottom end of the upper rod is rotatably connected with a rotating sleeve, a second gear is rotatably connected to the inside of the rotating sleeve through a rotating shaft, and an inner tooth socket is formed in the inner wall of the top end of the lower rod. According to the invention, the labor-saving transmission mechanism is adopted, so that the rotation force required by the top disc is reduced, the radius of the top disc is reduced, and the detachable expansion rod structure is adopted, so that the expansion rod and the central disc are installed and used after the lower rod is installed and sealed.

Description

Laborsaving valve rod convenient to installation

Technical Field

The invention belongs to the technical field of valve rods, and particularly relates to a labor-saving valve rod convenient to mount.

Background

The valve rod is an important part of the valve and is used for transmission, an actuating mechanism or a handle is connected, the valve core is directly driven to move or rotate under the actuating mechanism or the handle so as to realize the opening and closing or adjusting function of the valve, and the valve rod is not only a moving part and a stress part but also a sealing part in the opening and closing process of the valve.

Firstly, the existing valve rod is a transmission part between a valve body handle and a valve core, but the valve rod is difficult to rotate conveniently and laborsavingly when the valve body is used, so that the handle is large, and the handle is easy to be overlarge and inconvenient to use and transport; secondly, the valve rod bottom expansion end often can be great, and the valve rod is as the sealing member simultaneously, leads to the valve rod often inconvenient to insert installation use in the valve body.

Disclosure of Invention

The invention aims to: in order to solve the technical problem that the reality exists, provide the laborsaving valve rod of a convenient to installation.

The technical scheme adopted by the invention is as follows:

the utility model provides a laborsaving valve rod convenient to installation, includes the upper boom that takes turns and takes turns bottom end integrated into one piece to connect, still includes the lower beam, but the rotatable activity of lower beam adorn in the upper boom bottom, the first gear of upper boom bottom center pin department fixedly connected with, the upper boom bottom is rotated and is connected with the commentaries on classics cover, and rotates in the commentaries on classics cover and be connected with the second gear through the pivot, the interior tooth's socket has been seted up to lower boom top inner wall.

Wherein, include in the lower beam: the expansion rod can be horizontally and movably arranged in the at least one circular groove, and the central disc is integrally connected with the center of the lower rod.

The side surface of the central disc is provided with a clamping block, the at least one expansion rod is provided with a clamping groove, and the clamping groove is clamped with the clamping block.

The expansion rod is provided with a countersunk hole, a fixing bolt is sleeved in the countersunk hole, and the fixing bolt is integrally connected with the central disc.

The rotary groove is formed in the outer side of the upper rod, the rotary disc is formed in the top end of the lower rod, and the rotary disc is rotatably connected with the rotary groove.

The inner tooth groove is in meshed connection with a second gear, and the first gear is in meshed connection with the second gear.

And the nut and the screw structure on the fixing bolt are both accommodated in the counter bore.

Wherein the radius of the first gear is larger than the radius of the second gear.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. in the invention, a labor-saving transmission mechanism is adopted, because the two sides of the second gear are respectively connected with the first gear and the inner tooth socket in a meshed manner, and the rotating sleeve is rotatably connected with the rotating shaft of the first gear, and because the second gear is rotatably connected with the side surface of the rotating sleeve, the top disc drives the lower rod to rotate when rotating, the angular speed of the top disc is greater than that of the lower rod, and meanwhile, the rotation force application required by the top disc is reduced, and the radius setting of the top disc is reduced.

2. In the invention, a detachable expansion rod structure is adopted, the clamping between the clamping groove and the clamping block and the clearance fit between the expansion rod and the circular groove are adopted, and the limit of the expansion rod by the fixing bolt is adopted, so that the expansion rod can be detachably installed by the fixing bolt, and the installation and sealing of the lower rod are completed, and the expansion rod and the central disc are installed and used.

Drawings

FIG. 1 is a schematic diagram of the front view structure of the present invention;

FIG. 2 is a schematic front view center sectional view of the present invention;

FIG. 3 is a schematic structural view of the section A-A in the present invention;

FIG. 4 is a schematic structural view of a section B-B in the present invention.

The labels in the figure are: 1. a top tray; 2. a turntable; 3. an inner tooth socket; 4. a first gear; 5. an expansion rod; 6. a rod is arranged; 7. rotating the groove; 8. a second gear; 9. rotating the sleeve; 10. a lower rod; 11. fixing the bolt; 12. a circular groove; 13. a countersunk hole; 14. a central disk; 15. a card slot; 16. and (7) clamping blocks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Embodiment one, refer to fig. 1-4, a laborsaving valve rod convenient to installation, including the upper boom 6 that

top dish

1 and 1 bottom integrated into one piece of top dish are connected, still include lower beam 10, the rotatable movable of lower beam 10 adorns in the 6 bottoms of upper boom, the first gear 4 of 6 bottom center pin departments fixedly connected with of upper boom, 6 bottoms of upper boom rotate and are connected with and change cover 9, and rotate and be connected with second gear 8 through the pivot in the cover 9, tooth's socket 3 in having seted up of 10 top inner walls of lower beam for drive first gear 4 when upper boom 6 rotates and rotate.

In a second embodiment, referring to fig. 2, the lower rod 10 includes: the expansion rod assembly comprises a central disc 14, at least one expansion rod 5 and at least one circular groove 12, wherein the at least one expansion rod 5 can be horizontally and movably arranged in the at least one circular groove 12, the central disc 14 is integrally connected with the center of the lower rod 10, a clamping block 16 is arranged on the side surface of the central disc 14, a clamping groove 15 is formed in the at least one expansion rod 5, the clamping groove 15 is clamped with the clamping block 16, a countersunk hole 13 is formed in the at least one expansion rod 5, a fixing bolt 11 is sleeved in the countersunk hole 13, and the fixing bolt 11 is integrally connected with the central disc 14, so that the at least one expansion rod 5 is fixedly connected with the lower rod 10, the lower rod 10 can be conveniently inserted into a valve casing, then the expansion rod 5 and the lower rod 10 are fixedly installed, and the possibility that the expansion rod 5 is not convenient to install and seal is reduced.

In the third embodiment, referring to fig. 4, the rotary groove 7 is formed in the outer side of the upper rod 6, the rotary table 2 is formed at the top end of the lower rod 10, the rotary table 2 is rotatably connected with the rotary groove 7, and the nut and the screw structure on the fixing bolt 11 are all accommodated in the counter bore 13, so that the installation and use of the valve core on the expansion rod 5 are not affected by the installation of the fixing bolt 11.

In the fourth embodiment, referring to fig. 3, the internal tooth space 3 is in meshed connection with the second gear 8, the first gear 4 is in meshed connection with the second gear 8, and the radius of the first gear 4 is larger than that of the second gear 8, so that the first gear 4, the second gear 8 and the internal tooth space 3 form a planetary gear mechanism, and therefore the first gear 4 drives the second gear 8 and the internal tooth space 3 to rotate when rotating, and the force application requirement when the upper rod 6 rotates is reduced.

The working principle is as follows: firstly, two sides of a second gear 8 are respectively connected with the first gear 4 and the inner tooth socket 3 in a meshing manner, a rotating sleeve 9 is rotatably connected with a rotating shaft of the first gear 4, and then the second gear 8 is rotatably connected with the side surface of the rotating sleeve 9, so that the top disc 1 drives a lower rod 10 to rotate when rotating, the angular speed of the top disc 1 is greater than that of the lower rod 10, and the rotating force required by the top disc 1 is reduced, so that the radius of the top disc 1 is reduced; secondly, through the joint between draw-in groove 15 and fixture block 16 to and the clearance fit between expansion link 5 and the circular slot 12, rethread fixing bolt 11 is spacing to expansion link 5, makes fixing bolt 11 carry out detachable installation to expansion link 5, thereby be convenient for the installation of lower beam 10 with sealed the completion after, install expansion link 5 again and central disc 14 and use.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a laborsaving valve rod convenient to installation, includes top dish (1) and top dish (1) bottom integrated into one piece upper boom (6) of connecting, its characterized in that still includes lower beam (10), rotatable activity of lower beam (10) adorn in upper boom (6) bottom, upper boom (6) bottom center pin department fixedly connected with first gear (4), upper boom (6) bottom is rotated and is connected with and changes cover (9), and changes and rotate through the pivot in cover (9) and be connected with second gear (8), interior tooth's socket (3) have been seted up to lower beam (10) top inner wall.

2. A labor saving valve stem for easy installation as defined in claim 1, wherein: the lower rod (10) comprises: the expansion rod comprises a central disc (14), at least one expansion rod (5) and at least one circular groove (12), wherein the at least one expansion rod (5) can be horizontally and movably arranged in the at least one circular groove (12), and the central disc (14) is integrally connected with the center of the lower rod (10).

3. A labor saving valve stem for easy installation as defined in claim 2 wherein: a clamping block (16) is arranged on the side surface of the central disc (14), a clamping groove (15) is formed in the at least one expansion rod (5), and the clamping groove (15) is clamped with the clamping block (16).

4. A labor saving valve stem for easy installation as defined in claim 2 wherein: a counter bore (13) is formed in the at least one expansion rod (5), a fixing bolt (11) is sleeved in the counter bore (13), and the fixing bolt (11) is connected with the central disc (14) in an integrated forming mode.

5. A labor saving valve stem for easy installation as defined in claim 1, wherein: a rotary groove (7) is formed in the outer side of the upper rod (6), the rotary table (2) is formed in the top end of the lower rod (10), and the rotary table (2) is rotatably connected with the rotary groove (7).

6. A labor saving valve stem for easy installation as defined in claim 1, wherein: the inner tooth groove (3) is meshed with the second gear (8), and the first gear (4) is meshed with the second gear (8).

7. A labor saving valve stem for easy installation as defined in claim 1, wherein: and the nut and the screw structure on the fixing bolt (11) are accommodated in the counter bore (13).

8. A labor saving valve stem for easy installation as defined in claim 1, wherein: the radius of the first gear (4) is larger than that of the second gear (8).