Valve with locking function

Abstract

The utility model relates to the technical field of valves, in particular to a valve with a locking function. Comprising a valve body, a fixed sleeve is fixedly mounted at the top of the valve body, a threaded rotating shaft in threaded connection with the fixed sleeve penetrates through the fixed sleeve, a cock is fixedly connected to the bottom of the threaded rotating shaft, a hand wheel is fixedly connected to the top of the threaded rotating shaft, a limiting ring is fixedly connected to the hand wheel, and a fixed block is fixedly connected to one side of the fixed sleeve; the top end of the connecting rod is fixedly connected with a connecting block, the fixing block and the connecting block are connected through a spring arranged on the outer side of the connecting rod in a sleeving mode, the top of the connecting block is fixedly connected with a locking clamping block matched with the limiting ring, and the bottom end of the connecting rod is rotationally connected with a limiting pull block. The hand wheel is locked through the locking hole in the locking clamping block and the locking hole in the limiting ring, the valve can be prevented from being opened by mistake or being touched by mistake, and safety accidents are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve with a locking function. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. Valves are indispensable devices both in life and in industrial production.

[0003] Generally speaking, valves are prohibited from being opened and stopped at will, and existing valves do not have a locking function. In some industrial production, the valves may be opened, closed or touched by mistake, resulting in huge economic losses, and even safety accidents in serious cases. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing valves do not have a locking function, and the valves may be opened, closed or touched by mistake.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a valve with a locking function, including a valve body, a fixed sleeve is fixedly installed on the top of the valve body, a threaded shaft threadedly connected to the fixed sleeve is passed through the fixed sleeve, a plug is fixedly connected to the bottom of the threaded shaft, a handwheel is fixedly connected to the top of the threaded shaft, a limiting ring is fixedly connected to the handwheel, a fixed block is fixedly connected to one side of the fixed sleeve, a connecting rod is passed through the fixed block, a connecting block is fixedly connected to the top of the connecting rod, the fixed block and the connecting block are connected by a spring sleeved on the outside of the connecting rod, a locking block matched with the limiting ring is fixedly connected to the top of the connecting block, and the bottom end of the connecting rod is rotatably connected to the limiting pull block.

[0006] As a further improvement of the utility model, the top of the valve body is located outside the fixed sleeve, and the fixed sleeve is provided with a sealing ring, and the sealing ring is located at the top of the connection between the fixed sleeve and the valve body.

[0007] As a further improvement of the utility model, the outer side of the threaded shaft is provided with an external thread, and the inner wall of the fixed sleeve is provided with an internal thread matching the external thread.

[0008] As a further improvement of the present invention, the limiting ring is provided with a plurality of locking holes matched with the locking blocks, the plurality of locking holes are evenly distributed on the limiting ring and the plurality of locking holes are distributed in a ring array about the threaded shaft.

[0009] As a further improvement of the utility model, the fixing block is provided with a guide hole for the connecting rod to pass through.

[0010] As a further improvement of the utility model, the bottom end of the connecting rod is rotatably connected to the limiting pull block through a bearing, and a groove matching the limiting pull block is provided on one side of the fixed sleeve.

[0011] Beneficial effects of the utility model: the utility model locks the hand wheel through the locking block and the locking hole on the limit ring, which can prevent the valve from being opened, opened or touched by mistake, and reduce the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of a valve with a locking function of the utility model;

[0013] Figure 2 It is a partial cross-sectional view of a valve with a locking function of the utility model;

[0014] Figure 3 It is a cross-sectional view of a valve with a locking function in the utility model in a locked state;

[0015] Figure 4 It is a sectional view of a limit state of a valve with a locking function of the utility model.

[0016] As shown in the figure: 1. Valve body; 2. Fixed sleeve; 3. Threaded shaft; 4. Plug; 5. Handwheel; 6. Limit ring; 7. Fixed block; 8. Connecting rod; 9. Connecting block; 10. Spring; 11. Locking block; 12. Limit pull block; 13. Sealing ring; 14. Locking hole; 15. Bearing; 16. Slot. DETAILED DESCRIPTION

[0017] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may change accordingly according to their different locations and different usage states; therefore, these or other directional terms should not be interpreted as restrictive terms.

[0018] The singular forms "a", "said" and "the" used in this specification are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and implementation methods. It should be understood that the implementation methods described herein are only used to explain this application and are not used to limit this application.

[0020] The utility model provides the following Figure 1 , Figure 2 , Figure 3 , Figure 4 A valve with a locking function is shown, comprising a valve body 1, a fixed sleeve 2 is fixedly installed on the top of the valve body 1, a threaded shaft 3 is passed through the fixed sleeve 2 and is threadedly connected to the fixed sleeve 2, a plug 4 is fixedly connected to the bottom of the threaded shaft 3, a hand wheel 5 is fixedly connected to the top of the threaded shaft 3, a limit ring 6 is fixedly connected to the hand wheel 5, a fixed block 7 is fixedly connected to one side of the fixed sleeve 2, a connecting rod 8 is passed through the fixed block 7, a connecting block 9 is fixedly connected to the top of the connecting rod 8, the fixed block 7 and the connecting block 9 are connected by a spring 10 sleeved on the outside of the connecting rod 8, a locking block 11 matched with the limit ring 6 is fixedly connected to the top of the connecting block 9, and the bottom end of the connecting rod 8 is rotatably connected to a limit pull block 12.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in the utility model, the top of the valve body 1 is located outside the fixed sleeve 2, and a sealing ring 13 is provided on the fixed sleeve. The sealing ring 13 is located at the top of the connection between the fixed sleeve 2 and the valve body 1, thereby improving the sealing performance of the valve as a whole.

[0022] like Figure 2 , Figure 3 , Figure 4 As shown, in the utility model, an outer side of the threaded shaft 3 is provided with an external thread, and an inner wall of the fixed sleeve 2 is provided with an internal thread matching the external thread, so that the threaded shaft 3 will slide when it rotates.

[0023] like Figure 1 and Figure 2 As shown, in the utility model, a plurality of locking holes 14 cooperating with the locking block 11 are provided on the limit ring 6, and the plurality of locking holes 14 are evenly distributed on the limit ring 6 and the plurality of locking holes 14 are distributed in a ring array about the threaded shaft 3. The hand wheel 5 is locked by the locking holes 14 on the locking block 11 and the limit ring 6 to prevent the valve from being opened, opened or touched accidentally.

[0024] like Figure 3 and Figure 4 As shown, in the utility model, a guide hole is provided on the fixing block 7 for the connecting rod 8 to pass through, so as to facilitate the sliding of the connecting rod 8 and guide the sliding of the connecting rod 8 .

[0025] like Figure 3 and Figure 4As shown, in the utility model, the bottom end of the connecting rod 8 is rotatably connected to the limit pull block 12 through a bearing 15, and a groove 16 matching the limit pull block 12 is provided on one side of the fixed sleeve 2. The limit pull block 12 is controlled to rotate so that one end of it rotates into the groove 16. At this time, the limit pull block 12 is limited by the groove 16, thereby facilitating the rotation of the hand wheel 5 and facilitating the opening of the valve.

[0026] Working principle: When the valve is opened, Figure 3 As shown in the figure, first pull the limit pull block 12 downwards, and drive the locking block 11 to move downwards through the connecting rod 8 and the connecting block 9. At this time, the locking block 11 is disengaged from the locking hole 14, and the spring 10 is in a compressed state. Then rotate the limit pull block 12 so that one end of it rotates into the slot 16. At this time, the limit pull block 12 is limited and fixed by the slot 16. Then turn the handwheel 5 to drive the threaded shaft 3 to rotate and slide upward, thereby driving the plug 4 to move upward to open the valve.

[0027] When the utility model closes the valve, the hand wheel 5 is rotated in the opposite direction to drive the threaded shaft 3 to rotate in the opposite direction and slide downward, thereby driving the plug 4 to move downward to close the valve (such as Figure 4 As shown), the limiting pull block 12 is controlled to rotate so that one end of it is out of the card slot 16. At this time, the elastic potential energy of the spring 10 restores it to its original state, so that the connecting block 9 drives the locking card block 11 to move upward into the locking hole 14. At this time, the hand wheel 5 is locked by the locking card block 11 and the locking hole 14 on the limiting ring 6, thereby preventing the valve from being opened, opened or touched by mistake, thereby reducing the occurrence of safety accidents.

[0028] The above implementation modes are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned implementation modes, a person skilled in the art should understand that the technical solutions described in the aforementioned implementation modes can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the implementation modes of the present invention.

Claims

1. A valve with a locking function, comprising a valve body (1), characterized in that: A fixed sleeve (2) is fixedly mounted on the top of the valve body (1), a threaded shaft (3) threadedly connected to the fixed sleeve (2) is passed through the fixed sleeve (2), a plug (4) is fixedly connected to the bottom of the threaded shaft (3), a hand wheel (5) is fixedly connected to the top of the threaded shaft (3), a limit ring (6) is fixedly connected to the hand wheel (5), a fixed block (7) is fixedly connected to one side of the fixed sleeve (2), a connecting rod (8) is passed through the fixed block (7), a connecting block (9) is fixedly connected to the top of the connecting rod (8), the fixed block (7) and the connecting block (9) are connected via a spring (10) sleeved on the outside of the connecting rod (8), a locking block (11) matched with the limit ring (6) is fixedly connected to the top of the connecting block (9), and the bottom of the connecting rod (8) is rotatably connected to a limit pull block (12).

2. A valve with a locking function according to claim 1, characterized in that: The top of the valve body (1) is located outside the fixed sleeve (2), and a sealing ring (13) is provided on the fixed sleeve. The sealing ring (13) is located at the top of the connection between the fixed sleeve (2) and the valve body (1).

3. A valve with a locking function according to claim 1, characterized in that: The outer side of the threaded rotating shaft (3) is provided with an external thread, and the inner wall of the fixed sleeve (2) is provided with an internal thread matching the external thread.

4. A valve with a locking function according to claim 1, characterized in that: The limiting ring (6) is provided with a plurality of locking holes (14) matched with the locking block (11); the plurality of locking holes (14) are evenly distributed on the limiting ring (6) and the plurality of locking holes (14) are distributed in a ring array about the threaded shaft (3).

5. The valve with locking function according to claim 1, characterized in that: The fixing block (7) is provided with a guide hole for the connecting rod (8) to pass through.

6. The valve with locking function according to claim 1, characterized in that: The bottom end of the connecting rod (8) is rotatably connected to the limiting pull block (12) via a bearing (15), and a clamping groove (16) matching the limiting pull block (12) is provided on one side of the fixing sleeve (2).

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