High-strength valve rod

Abstract

The utility model relates to the technical field of valve rods, in particular to a high-strength valve rod which comprises a first valve rod body and a mounting assembly. The mounting assembly comprises a second valve rod, a connecting sleeve, an inserting rod, an arc plate, a sliding block, a barrel and a limiting barrel, the connecting sleeve is fixedly mounted on one side of the first valve rod, the second valve rod is slidably mounted on the side, away from the first valve rod, of the connecting sleeve, the inserting rod is slidably connected with the connecting sleeve and slidably connected with the second valve rod, and the barrel is in threaded connection with the connecting sleeve; and the limiting barrel is fixedly installed on the side, away from the first valve rod, of the barrel body, the arc plate is in sliding connection with the limiting barrel and fixedly connected with the inserting rod, the sliding block is in sliding connection with the inserting rod and fixedly connected with the connecting sleeve, a worker can conveniently adjust the length of the valve rod, and therefore the using effect of the valve rod is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve stems, and particularly relates to a high-strength valve stem. Background Art

[0002] A butterfly valve, also called a flap valve, is a simple-structured regulating valve mainly composed of a valve body, a valve stem, a butterfly plate and a sealing ring. It achieves the functions of opening and closing by rotating the butterfly plate around the valve stem. Usually, the valve stem is fixed, and the staff cannot adjust the length of the valve stem, which brings much inconvenience to the staff when using the valve stem, thus affecting the use effect of the valve stem.

[0003] The prior art CN218818512U discloses a high-strength butterfly valve stem, including a second valve stem, a through hole two, a connecting sleeve, a through hole one, a connecting sleeve and a first valve stem. One end of the second valve stem with the through hole two is inserted into the connecting sleeve, and one of the through hole twos is located inside the through hole one. The front end of a bolt sequentially passes through the through hole one and the through hole two and is threadedly connected with a nut to fix the second valve stem on the connecting sleeve. By connecting different through hole twos and through hole ones, the length between the first valve stem and the second valve stem is adjusted, so that the staff can adjust the length of the valve stem, thereby improving the use effect of the valve stem.

[0004] During normal use, the adjustment method of the prior art is time-consuming and laborious for the staff to adjust the length of the valve stem, making it inconvenient for the staff to adjust the length of the valve stem, thus affecting the use effect of the valve stem. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem that the adjustment method of the prior art is time-consuming and laborious for the staff to adjust the length of the valve stem, making it inconvenient for the staff to adjust the length of the valve stem, thus affecting the use effect of the valve stem.

[0006] To achieve the above technical purpose, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a high-strength valve stem, including a first valve stem and an installation component; the installation component includes a second valve stem, a connecting sleeve, a plug rod, an arc plate, a slider, a cylinder body and a limiting cylinder. The connecting sleeve is fixedly installed on one side of the first valve stem. The second valve stem is slidably installed on the side of the connecting sleeve away from the first valve stem. The plug rod is slidably connected with the connecting sleeve and is also slidably connected with the second valve stem. The cylinder body is threadedly connected with the connecting sleeve and is located on the side of the connecting sleeve away from the second valve stem. The limiting cylinder is fixedly installed on the side of the cylinder body away from the first valve stem. The arc plate is slidably connected with the limiting cylinder and is fixedly connected with the plug rod. The slider is slidably connected with the plug rod and is fixedly connected with the connecting sleeve.

[0008] Among them, the insertion rod has a moving groove, which is located on the side of the insertion rod close to the slider and cooperates with the slider.

[0009] Among them, the second valve rod has a positioning hole, which is located on the side of the second valve rod close to the insertion rod and cooperates with the insertion rod.

[0010] Among them, the connecting sleeve has an external thread, which is located on the side of the connecting sleeve close to the cylinder body and cooperates with the cylinder body; the cylinder body has an internal thread, which is located on the side of the cylinder body close to the connecting sleeve and cooperates with the external thread.

[0011] Among them, the installation assembly further includes a stabilizing block and a stabilizing frame. The stabilizing frame is fixedly connected to the second valve rod and is located on the side of the second valve rod close to the connecting sleeve; the stabilizing block is slidably connected to the stabilizing frame and is fixedly connected to the connecting sleeve.

[0012] For a high-strength valve rod of the present utility model, when pulling the second valve rod to move on the connecting sleeve, pushing the insertion rod to move on the connecting sleeve and the slider, and at the same time inserting the insertion rod into the positioning hole, rotating the cylinder body, the external thread cooperates with the internal thread, the cylinder body drives the limiting cylinder to move, and the limiting cylinder restricts the position of the arc plate when moving, fixing the second valve rod on the connecting sleeve, so that the staff can easily adjust the length of the valve rod, thereby improving the use effect of the valve rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings.

[0014] Figure 1 FIG. is a schematic diagram of the overall structure of the high-strength valve rod according to the first embodiment of the present utility model.

[0015] Figure 2 FIG. is a schematic diagram of the structure of the second valve rod and the connecting sleeve of the present utility model.

[0016] Figure 3 FIG. is a schematic diagram of the structure of the insertion rod and the arc plate of the present utility model.

[0017] Figure 4 FIG. is a schematic diagram of the structure of the stabilizing block and the stabilizing frame of the present utility model.

[0018] Figure 5 FIG. is a schematic diagram of the structure of the second valve rod and the stabilizing frame of the present utility model.

[0019] In the figure: 101 - First valve stem, 102 - Second valve stem, 103 - Connecting sleeve, 104 - Insertion rod, 105 - Arc plate, 106 - Slide block, 107 - Cylinder body, 108 - Limiting cylinder, 109 - Moving groove, 110 - Positioning hole, 111 - External thread, 112 - Internal thread, 201 - Stabilizing block, 202 - Stabilizing frame. Detailed implementation mode

[0020] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0021] Embodiment 1:

[0022] As Figures 1-3 shown, Figure 1 is a schematic diagram of the overall structure of the high-strength valve stem according to the first embodiment of the present utility model, Figure 2 is a schematic diagram of the structure of the second valve stem and the connecting sleeve of the present utility model, Figure 3 is a schematic diagram of the structure of the insertion rod and the arc plate of the present utility model. The present utility model provides a high-strength valve stem, including a first valve stem 101 and an installation assembly; the installation assembly includes a second valve stem 102, a connecting sleeve 103, an insertion rod 104, an arc plate 105, a slide block 106, a cylinder body 107 and a limiting cylinder 108. The insertion rod 104 has a moving groove 109, the second valve stem 102 has a positioning hole 110, the connecting sleeve 103 has an external thread 111, and the cylinder body 107 has an internal thread 112. Through the foregoing solution, the problem that the existing adjustment method is time-consuming and laborious for the staff to adjust the length of the valve stem is solved, making it inconvenient for the staff to adjust the length of the valve stem, thereby affecting the use effect of the valve stem. It can be understood that the foregoing solution can be used in the case where the existing adjustment method is time-consuming and laborious for the staff to adjust the length of the valve stem.

[0023] For this specific implementation mode, by pulling the second valve stem 102 to move on the connecting sleeve 103, pushing the insertion rod 104 to move on the connecting sleeve 103 and the slide block 106, and at the same time inserting the insertion rod 104 into the second valve stem 102, rotating the cylinder body 107, the cylinder body 107 drives the limiting cylinder 108 to move. When the limiting cylinder 108 moves, it restricts the position of the arc plate 105, and fixes the second valve stem 102 on the connecting sleeve 103, so that the staff can easily adjust the length of the valve stem, thereby improving the use effect of the valve stem.

[0024] Among them, the connecting sleeve 103 is fixedly installed on one side of the first valve rod 101, the second valve rod 102 is slidably installed on the side of the connecting sleeve 103 away from the first valve rod 101, the inserting rod 104 is slidably connected with the connecting sleeve 103 and is also slidably connected with the second valve rod 102, the cylinder body 107 is threadedly connected with the connecting sleeve 103 and is located on the side of the connecting sleeve 103 away from the second valve rod 102, the limiting cylinder 108 is fixedly installed on the side of the cylinder body 107 away from the first valve rod 101, the arc plate 105 is slidably connected with the limiting cylinder 108 and is fixedly connected with the inserting rod 104, the slider 106 is slidably connected with the inserting rod 104 and is fixedly connected with the connecting sleeve 103. The connecting sleeve 103 is cylindrical, the top of the connecting sleeve 103 is hollow, the lower part of the outer side of the connecting sleeve 103 is provided with external threads, the outer side of the open end of the connecting sleeve 103 is provided with through holes, the outer side of the second valve rod 102 is provided with a plurality of positioning holes, the cylinder body 107 is a cylinder with through holes designed at both ends, the inner side of the cylinder body 107 is provided with internal threads, and the internal threads of the cylinder body 107 are connected with the external threads of the connecting sleeve 103. The limiting cylinder 108 is a cylinder with through holes designed at both ends, the bottom end of the limiting cylinder 108 is fixedly connected with the top end of the cylinder body 107. There are a plurality of inserting rods 104, the outer side of the top of the inserting rod 104 is provided with a moving groove 109. There are two inserting rods 104, and the outer side of the inserting rod 104 is slidably connected with the positioning holes 110 of the second valve rod 102. The arc plate 105 is arc-shaped, there are two arc plates 105, and the inner side of the arc plate 105 is fixedly connected with the end of the inserting rod 104. There are a plurality of sliders 106, the sliders 106 are located at the inner top of the through holes of the connecting sleeve 103, and the outer side of the slider 106 is slidably connected with the moving groove 109 of the inserting rod 104. By pulling the second valve rod 102 to move on the connecting sleeve 103, the inserting rod 104 is pushed to move on the connecting sleeve 103 and the slider 106. At the same time, the inserting rod 104 is inserted into the second valve rod 102. Rotate the cylinder body 107, and the cylinder body 107 drives the limiting cylinder 108 to move. When the limiting cylinder 108 moves, it restricts the position of the arc plate 105, and fixes the second valve rod 102 on the connecting sleeve 103, so that the staff can easily adjust the length of the valve rod, thereby improving the use effect of the valve rod.

[0025] Secondly, the plug rod 104 has a moving groove 109 which is located on the side of the plug rod 104 close to the slider 106 and cooperates with the slider 106. There are two moving grooves 109 which are respectively located at the outer tops of the two plug rods 104. The moving groove 109 is slidably connected to the outer side of the slider 106. By moving the slider 106 on the moving groove 109, the moving angle of the plug rod 104 is restricted.

[0026] Then, the second valve rod 102 has positioning holes 110 which are located on the side of the second valve rod 102 close to the plug rod 104 and cooperate with the plug rod 104. There are multiple positioning holes 110 which are located on the outer side of the second valve rod 102. The inner side of the positioning hole 110 is slidably connected to the outer side of the plug rod 104. By slidably connecting the plug rod 104 with the positioning holes 110, the connection between the plug rod 104 and the second valve rod 102 is realized.

[0027] Finally, the connecting sleeve 103 has an external thread 111 which is located on the side of the connecting sleeve 103 close to the cylinder body 107 and cooperates with the cylinder body 107; the cylinder body 107 has an internal thread 112 which is located on the side of the cylinder body 107 close to the connecting sleeve 103 and cooperates with the external thread 111. The external thread 111 is located at the lower outer part of the connecting sleeve 103, and the internal thread 112 is located inside the cylinder body 107. By rotating the cylinder body 107, the external thread 111 is brought into cooperation with the internal thread 112, so as to realize the connection between the cylinder body 107 and the connecting sleeve 103.

[0028] When using a high-strength valve rod of this embodiment, pull the second valve rod 102 to move on the connecting sleeve 103, push the plug rod 104 to move on the connecting sleeve 103 and the slider 106. At the same time, the plug rod 104 is inserted into the positioning holes 110, rotate the cylinder body 107, the external thread 111 cooperates with the internal thread 112, the cylinder body 107 drives the limiting cylinder 108 to move, and the limiting cylinder 108 restricts the position of the arc plate 105 when moving, so as to fix the second valve rod 102 on the connecting sleeve 103, making it convenient for the staff to adjust the length of the valve rod, thereby improving the use effect of the valve rod.

[0029] Embodiment 2:

[0030] As Figure 4 and Figure 5 shown, Figure 4 is a schematic structural view of the stabilizing block and the stabilizing frame of the present utility model. Figure 5It is a schematic structural diagram of the second valve stem and the stabilizing frame of the present utility model. On the basis of the first embodiment, the installation component of this embodiment further includes a stabilizing block 201 and a stabilizing frame 202.

[0031] For this specific embodiment, when the second valve stem 102 moves, it drives the stabilizing frame 202 to move on the stabilizing block 201, thereby restricting the moving angle of the second valve stem 102.

[0032] Among them, the stabilizing frame 202 is fixedly connected to the second valve stem 102 and is located on the side of the second valve stem 102 close to the connecting sleeve 103; the stabilizing block 201 is slidably connected to the stabilizing frame 202 and is fixedly connected to the connecting sleeve 103. Installation grooves are designed on the left and right sides of the outer side of the second valve stem 102. The stabilizing frame 202 has a rectangular parallelepiped side surface, and a sliding groove is designed on the side surface of the stabilizing frame 202. There are two stabilizing frames 202. The outer side of the closed end of the stabilizing frame 202 is fixedly connected to the installation groove of the second valve stem 102. There are two stabilizing blocks 201. The two stabilizing blocks 201 are respectively located on the left and right sides of the open end of the connecting sleeve 103. The stabilizing block 201 is slidably connected to the inner side of the stabilizing frame 202. When the second valve stem 102 moves, it drives the stabilizing frame 202 to move on the stabilizing block 201, thereby restricting the moving angle of the second valve stem 102.

[0033] When using a high-strength valve stem of this embodiment, when the second valve stem 102 moves, it drives the stabilizing frame 202 to move on the stabilizing block 201, thereby restricting the moving angle of the second valve stem 102.

[0034] The above embodiments only exemplarily illustrate the principles and effects of the present utility model, rather than limiting the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A high-strength valve stem, comprising a first valve stem, characterized in that, it further comprises an installation assembly; The installation assembly includes a second valve stem, a connecting sleeve, a plug rod, an arc plate, a slider, a cylinder body and a limiting cylinder. The connecting sleeve is fixedly installed on one side of the first valve stem. The second valve stem is slidably installed on the side of the connecting sleeve away from the first valve stem. The plug rod is slidably connected to the connecting sleeve and is also slidably connected to the second valve stem. The cylinder body is threadedly connected to the connecting sleeve and is located on the side of the connecting sleeve away from the second valve stem. The limiting cylinder is fixedly installed on the side of the cylinder body away from the first valve stem. The arc plate is slidably connected to the limiting cylinder and is fixedly connected to the plug rod. The slider is slidably connected to the plug rod and is fixedly connected to the connecting sleeve.

2. The high-strength valve stem according to claim 1, characterized in that, the plug rod has a moving groove, which is located on the side of the plug rod close to the slider and cooperates with the slider.

3. The high-strength valve stem according to claim 1, characterized in that, the second valve stem has a positioning hole, which is located on the side of the second valve stem close to the plug rod and cooperates with the plug rod.

4. The high-strength valve stem according to claim 1, characterized in that, the connecting sleeve has an external thread, which is located on the side of the connecting sleeve close to the cylinder body and cooperates with the cylinder body; the cylinder body has an internal thread, which is located on the side of the cylinder body close to the connecting sleeve and cooperates with the external thread.

5. The high-strength valve stem according to claim 1, characterized in that, the installation assembly further includes a stabilizing block and a stabilizing frame. The stabilizing frame is fixedly connected to the second valve stem and is located on the side of the second valve stem close to the connecting sleeve; the stabilizing block is slidably connected to the stabilizing frame and is fixedly connected to the connecting sleeve.

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