Split combined valve rod

Abstract

The utility model discloses a split combined type valve rod which comprises a main valve rod and a connecting ejector rod, an inserting groove is formed in the top of the main valve rod, a clamping groove is formed in the inner wall of the inserting groove, the bottom of the connecting ejector rod is integrally connected with an inserting head connected with the inserting groove in an inserted mode, a movable groove is formed in the connecting ejector rod, and the movable groove is connected with the clamping groove in an inserted mode. A movable sleeve is slidably connected into the movable groove, a connecting frame is fixedly installed in the movable groove, a connecting rod is rotatably connected to the middle of the connecting frame, a clamping block clamped with the clamping groove is rotatably connected to the bottom of the connecting rod, and the clamping block is slidably connected with the inserting head in a penetrating mode. The whole valve rod is divided into the main valve rod and the connecting ejector rod, and the main valve rod and the connecting ejector rod are connected in an inserted mode through the hexagonal inserting groove and the inserting head, so that the main valve rod and the connecting ejector rod can be connected, normal use of the valve rod is not affected, and meanwhile the connecting ejector rod and the main valve rod can be conveniently separated to be disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of valve stems, in particular to a split combined valve stem. Background Art

[0002] The valve stem is an important part of the valve, used for transmission, connected to the actuator or handle, and directly drives the valve core to move or rotate to achieve the valve opening or closing or regulation. The valve stem is not only a moving part and a force-bearing part during the valve opening and closing process, but also a sealing part. At the same time, it is impacted and corroded by the medium, and also produces friction with the packing. Therefore, when selecting the valve stem material, it must be ensured that it has sufficient strength, good impact toughness, abrasion resistance, and corrosion resistance at the specified temperature.

[0003] The valve stem in the prior art is usually an integrated structure and cannot be disassembled. At the same time, when the valve is repaired and disassembled, the long valve stem makes it very inconvenient to disassemble the valve core.

[0004] For this reason, we propose a split combined valve stem. Utility Model Content

[0005] The purpose of the utility model is to provide a split combined valve stem to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a split combined valve stem, comprising a main valve stem and a connecting push rod, the top of the main valve stem is provided with a plug-in groove, the inner wall of the plug-in groove is provided with a clamping groove, the bottom of the connecting push rod is integrally connected with a plug connector plugged into the plug-in groove, the interior of the connecting push rod is provided with a movable groove, the interior of the movable groove is slidably connected with a movable sleeve, the interior of the movable groove is fixedly installed with a connecting frame, the middle part of the connecting frame is rotatably connected with a connecting rod, the bottom of the connecting rod is rotatably connected with a clamping block clamped with the clamping groove, and the clamping block is slidably connected with the plug connector.

[0007] Optionally, sliding through grooves penetrating into the movable groove are provided on both sides of the connecting push rod, and a dial button is integrally connected to the top of the outer circumference of the movable sleeve, and the dial button is slidably connected to the inside of the sliding through groove.

[0008] Optionally, a clamping block is integrally provided at the bottom of the movable sleeve, and the opposing surfaces of the two clamping blocks are inclined surfaces. The inclined surfaces of the clamping blocks are in tight contact with the connecting rod, and a groove is provided at the bottom of the movable sleeve. The width of the groove of the movable sleeve is greater than the width of the connecting frame.

[0009] Optionally, an opening spring is provided between the two connecting rods, and two ends of the opening spring are respectively fixedly mounted on opposite surfaces of the two connecting rods.

[0010] Optionally, a fixed plate is fixedly installed in the middle of the movable groove, and a lifting spring located inside the movable sleeve is fixedly installed on the top of the fixed plate, and the top of the lifting spring is in tight contact with the top of the back of the movable sleeve.

[0011] Optionally, the outer side of the dial button is flush with the outer circumference of the connecting push rod, and the outer circumference of the dial button is provided with anti-slip grooves.

[0012] Optionally, the plug slot and the plug connector are hexagonal, and the depth of the plug slot is greater than the length of the plug connector.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The split combined valve stem is provided with a main valve stem and a connecting push rod, by dividing an entire valve stem into the main valve stem and the connecting push rod, and plugging them together through a hexagonal plug-in groove and a plug-in joint, and at the same time, the clamping blocks arranged on both sides of the plug-in joint are clamped with the clamping grooves, so that the main valve stem and the connecting push rod can be connected without affecting the normal use of the valve stem.

[0015] The split combined valve stem is provided with a movable groove. When the valve needs to be disassembled for maintenance, the longer valve stem is difficult to disassemble. At this time, the dial button is moved downward along the sliding groove to move the movable sleeve downward, and then the connecting rod is retracted into the interior of the movable sleeve along the inclined surface of the tightening block, and then the two connecting rods drive the clamping block to shrink into the interior of the plug joint, so that the clamping block and the clamping groove are loosened, which makes it convenient to separate the connecting push rod and the main valve stem for disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a split combined valve stem of the utility model;

[0017] Figure 2 This is a structural schematic diagram of a main valve stem of a split combined valve stem of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a connecting rod of a split combined valve stem of the utility model;

[0019] Figure 4 This is a structural schematic diagram of a movable groove of a split combined valve stem of the utility model;

[0020] Figure 5 The utility model is a structural schematic diagram of a movable sleeve of a split combined valve stem.

[0021] In the figure: 1. main valve stem; 11. plug-in slot; 12. clamping slot; 2. connecting push rod; 21. plug-in joint; 22. clamping block; 23. movable slot; 24. movable sleeve; 25. fixed plate; 26. lifting spring; 27. sliding slot; 28. dial button; 29. ​​tightening block; 210. connecting frame; 211. connecting rod; 212. opening spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 The utility model provides a split combined valve stem, including a main valve stem 1 and a connecting push rod 2. The top of the main valve stem 1 is provided with a plug-in groove 11, the inner wall of the plug-in groove 11 is provided with a clamping groove 12, the bottom of the connecting push rod 2 is integrally connected with a plug connector 21 plugged with the plug-in groove 11, the interior of the connecting push rod 2 is provided with a movable groove 23, the interior of the movable groove 23 is slidably connected with a movable sleeve 24, the interior of the movable groove 23 is fixedly installed with a connecting frame 210, and the middle of the connecting frame 210 is rotatably connected with a connecting rod 21 1. The bottom of the connecting rod 211 is rotatably connected with a clamping block 22 clamped with the clamping groove 12, and the clamping block 22 is slidably connected with the plug joint 21. By setting the main valve stem 1 and the connecting push rod 2, a whole valve stem is divided into the main valve stem 1 and the connecting push rod 2, and plugged through the hexagonal plug groove 11 and the plug joint 21, and the clamping blocks 22 arranged on both sides of the plug joint 21 are clamped with the clamping groove 12, so that the main valve stem 1 and the connecting push rod 2 can be connected without affecting the normal use of the valve stem.

[0024] Sliding grooves 27 penetrating into the movable groove 23 are provided on both sides of the connecting push rod 2 . A dial button 28 is integrally connected to the top of the outer peripheral surface of the movable sleeve 24 . The dial button 28 is slidably connected to the inside of the sliding groove 27 .

[0025] A clamping block 29 is integrally provided at the bottom of the movable sleeve 24. The opposing surfaces of the two clamping blocks 29 are inclined surfaces. The inclined surfaces of the clamping blocks 29 are in tight contact with the connecting rod 211. A groove is provided at the bottom of the movable sleeve 24. The width of the groove of the movable sleeve 24 is greater than the width of the connecting frame 210.

[0026] An opening spring 212 is disposed between the two connecting rods 211 , and two ends of the opening spring 212 are fixedly mounted on opposite surfaces of the two connecting rods 211 .

[0027] A fixed plate 25 is fixedly installed in the middle of the movable groove 23, and a lifting spring 26 located inside the movable sleeve 24 is fixedly installed on the top of the fixed plate 25. The top of the lifting spring 26 is in tight contact with the top of the back of the movable sleeve 24. By setting the movable groove 23, when the valve needs to be disassembled and repaired, the longer valve stem is difficult to disassemble. At this time, the dial button 28 is moved downward along the sliding groove 27 to move the movable sleeve 24 downward, thereby allowing the connecting rod 211 to be retracted into the movable sleeve 24 along the inclined surface of the tightening block 29, and then the two connecting rods 211 drive the clamping block 22 to shrink into the inside of the plug joint 21, so that the clamping block 22 is loosened from the clamping groove 12, which is convenient for separating the connecting push rod 2 and the main valve stem 1 for disassembly.

[0028] The outer side of the dial button 28 is flush with the outer peripheral surface of the connecting push rod 2, and the outer peripheral surface of the dial button 28 is provided with anti-slip grooves.

[0029] The plug slot 11 and the plug connector 21 are hexagonal, and the depth of the plug slot 11 is greater than the length of the plug connector 21 .

[0030] Working principle:

[0031] By dividing a whole valve stem into a main valve stem 1 and a connecting push rod 2, and plugging them together through a hexagonal plug-in groove 11 and a plug joint 21, and at the same time, the clamping blocks 22 arranged on both sides of the plug joint 21 are clamped with the clamping groove 12, so that the main valve stem 1 and the connecting push rod 2 can be connected without affecting the normal use of the valve stem. When the valve needs to be disassembled and repaired, the longer valve stem is difficult to disassemble. At this time, the dial button 28 is moved downward along the sliding groove 27 to move the movable sleeve 24 downward, so that the connecting rod 211 is retracted into the interior of the movable sleeve 24 along the inclined surface of the tightening block 29, and then the two connecting rods 211 drive the clamping blocks 22 to shrink into the interior of the plug joint 21, so that the clamping blocks 22 are loosened from the clamping groove 12, which facilitates the connection push rod 2 and the main valve stem 1 to be separated and disassembled.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split combined valve stem, comprising a main valve stem (1) and a connecting push rod (2), characterized in that: The main valve stem (1) is provided with a plug-in slot (11) at the top, and a clamping slot (12) is provided on the inner wall of the plug-in slot (11). The bottom of the connecting top rod (2) is integrally connected with a plug connector (21) that is plugged into the plug-in slot (11). The inside of the connecting top rod (2) is provided with a movable slot (23), and a movable sleeve (24) is slidably connected to the inside of the movable slot (23). A connecting frame (210) is fixedly installed inside the movable slot (23), a connecting rod (211) is rotatably connected to the middle of the connecting frame (210), and a clamping block (22) that is clamped to the clamping slot (12) is rotatably connected to the bottom of the connecting rod (211), and the clamping block (22) is slidably connected to the plug connector (21).

2. A split combined valve stem according to claim 1, characterized in that: Sliding grooves (27) penetrating into the movable groove (23) are formed on both sides of the connecting push rod (2). A dial button (28) is integrally connected to the top of the outer peripheral surface of the movable sleeve (24). The dial button (28) is slidably connected to the inside of the sliding groove (27).

3. A split combined valve stem according to claim 1, characterized in that: A tightening block (29) is integrally provided at the bottom of the movable sleeve (24); the opposing surfaces of the two tightening blocks (29) are inclined surfaces; the inclined surfaces of the tightening blocks (29) are in tight contact with the connecting rod (211); a groove is provided at the bottom of the movable sleeve (24); the width of the groove provided on the movable sleeve (24) is greater than the width of the connecting frame (210).

4. A split combined valve stem according to claim 1, characterized in that: An opening spring (212) is provided between the two connecting rods (211), and two ends of the opening spring (212) are respectively fixedly mounted on opposite surfaces of the two connecting rods (211).

5. The split combined valve stem according to claim 1, characterized in that: A fixed plate (25) is fixedly mounted in the middle of the movable groove (23), a lifting spring (26) located inside the movable sleeve (24) is fixedly mounted on the top of the fixed plate (25), and the top of the lifting spring (26) is in tight contact with the top of the back of the movable sleeve (24).

6. A split combined valve stem according to claim 2, characterized in that: The outer side of the dial button (28) is flush with the outer peripheral surface of the connecting push rod (2), and the outer peripheral surface of the dial button (28) is provided with anti-slip grooves.

7. The split combined valve stem according to claim 1, characterized in that: The plug-in slot (11) and the plug-in connector (21) are hexagonal, and the depth of the plug-in slot (11) is greater than the length of the plug-in connector (21).

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