Handle with lock for valve

Abstract

The utility model provides a handle with a lock for a valve, which comprises a handle, the handle is clamped to a rotating shaft of the valve, a clamping part is mounted on the valve, the clamping part is used for fixing the relative position of one end of a clamping handle, the middle of the clamping handle is hinged to the middle of the handle, a first through hole is formed in the clamping handle, and a second through hole is formed in the handle. The periphery of the locking assembly is located in the first through hole and the second through hole and used for fixing the relative position of the handle and the clamping handle. According to the handle with the lock for the valve, the end of the clamping handle is detachably connected to the clamping part, the clamping part is fixedly connected to the valve, the opening degree of the valve can be adjusted through the handle, then the opening degree is locked through the clamping handle, and the opening degree is prevented from being changed when the valve is used for a long time; the stability and reliability of the opening degree of water flow on and off of the valve are improved, the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model belongs to the field of valves, and in particular relates to a lockable handle for a valve. Background Art

[0002] Valves are control components in fluid delivery systems. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest stop valves to various valves used in extremely complex automatic control systems. In the prior art, valves can be used to control the flow of various types of fluids, such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media. In valve applications, the gap between the valve disc or valve plate and the valve seat determines the flow rate of the medium fluid in the pipeline. The gap can be regarded as the opening of the valve. During use, the gap will become larger or smaller as the medium fluid affects the valve disc or valve plate, thereby affecting the opening of the valve. Summary of the invention

[0003] In view of this, the utility model aims to provide a lockable handle for a valve to solve the problem that the opening of the prior art valve changes with the medium pressure in the pipeline during use, resulting in inaccurate opening.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A lockable handle for a valve comprises a handle, which is clamped to a rotating shaft of the valve and a clamping portion is installed on the valve. The clamping portion is used to fix the relative position of one end of the handle, and the middle portion of the handle is hinged to the middle portion of the handle. A first through hole is provided on the handle, and a second through hole is provided on the handle. The periphery of the locking assembly is respectively located in the first through hole and the second through hole for fixing the relative position of the handle and the clamping handle.

[0006] Furthermore, the lockable handle for a valve also includes a first spring, and two ends of the first spring are respectively fixedly connected to one side of the handle and one side of the clamping handle.

[0007] Furthermore, a first slot is provided at one end of the handle, and the first slot is a polygonal structure, and the periphery of the rotating shaft of the valve is snap-connected to the first slot.

[0008] Furthermore, the clamping portion includes a chuck, which is fixedly mounted on the valve, and the periphery of the chuck is evenly distributed with serrations, and one end of the clamping handle can be clamped into the serrations.

[0009] Furthermore, the upper end of the chuck is evenly distributed with opening marks along the circumferential direction, and an indicating portion is provided at one end of the handle, and the indicating portion is used to indicate the opening mark.

[0010] Furthermore, a first through hole is provided on the upper side of one end of the clamping handle, and a clamping portion is provided on the lower side of one end of the clamping handle, and the clamping portion can be clamped into the saw teeth.

[0011] Furthermore, the locking assembly is an axle pin.

[0012] Further, the locking assembly is a padlock

[0013] Compared with the prior art, the lockable handle for a valve described in the utility model has the following beneficial effects:

[0014] (1) The utility model discloses a locking handle for a valve, wherein the end of the locking handle is detachably connected to the clamping portion, and the clamping portion is fixedly connected to the valve. The opening of the valve can be adjusted by the handle, and then the opening is locked by the locking handle to prevent the opening of the valve from changing when used for a long time, thereby improving the stability and reliability of the valve's opening for on-off water flow, and realizing a simple structure and low manufacturing cost.

[0015] (2) The utility model discloses a locking handle for a valve. The handle is rotated according to the use opening, and then the relative positions of the clamping handle, the handle and the valve are locked by means of serrations, thereby locking the valve opening. In order to facilitate the reading and recording of the opening, opening marks are evenly distributed along the circumference of the upper end of the chuck, and an indicator portion is provided at one end of the handle, which is used to indicate the opening mark. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0017] Figure 1 This is a structural schematic diagram of a lockable handle for a valve according to an embodiment of the utility model;

[0018] Figure 2 This is a side structural schematic diagram of a lockable handle for a valve according to an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the handle according to an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the clamping handle according to an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of a valve handle with a lock according to an embodiment of the utility model from above;

[0022] Figure 6 It is a cross-sectional schematic diagram of a lockable handle for a valve according to an embodiment of the utility model;

[0023] Figure 7A schematic diagram of the locking assembly structure of the third embodiment of the utility model;

[0024] Figure 8 A cross-sectional schematic diagram of a locking assembly according to a third embodiment of the present utility model;

[0025] Fig. 9 This is a schematic structural diagram of the upper shell and the lower shell in the open state according to an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1-handle; 11-first slot; 12-second through hole; 13-indicator; 2-claw handle; 21-first through hole; 22-clamping part; 3-first spring; 4-chuck; 41-sawtooth; 42-opening mark; 5-pin shaft; 6-locking assembly; 61-locking pin; 62-upper shell; 63-lower shell; 64-first central axis; 65-ring groove; 66-locking plate; 67-thrust pin; 68-baffle; 69-second spring; 610-sleeve; 611-cover; 612-incision. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] like Figure 1-Figure 9 As shown, a lockable handle for a valve comprises a handle 1, which is clamped to the rotating shaft of the valve, and a clamping portion 22 is installed on the valve, the clamping portion 22 is used to fix the relative position of one end of the clamping handle 2, and the middle part of the clamping handle 2 is hinged to the middle part of the handle 1, a first through hole 21 is provided on the clamping handle 2, and a second through hole 12 is provided on the handle 1, the periphery of the locking component 6 is respectively located in the first through hole 21 and the second through hole 12 for fixing the relative position of the handle 1 and the clamping handle 2, the clamping handle 2 and the handle 1 are fixed in relative position by the locking component 6, the end of the clamping handle 2 is detachably connected to the clamping portion 22, and the clamping portion 22 is fixedly connected to the valve, the opening of the valve can be adjusted by the handle 1, and then the opening is locked by the clamping handle 2 to prevent the opening of the valve from changing when used for a long time, thereby improving the stability and reliability of the opening of the valve for cutting off water flow, and the structure is simple and the manufacturing cost is low.

[0033] A lockable handle 1 for a valve also includes a first spring 3, and the two ends of the first spring 3 are respectively fixedly connected to one side of the handle 1 and one side of the clamping handle 2. The first spring 3 always has an elastic force that makes one end of the clamping handle 2 move away from one end of the handle 1, so that the clamping handle 2 can be reset, which facilitates the relative position locking of the clamping handle 2 and the clamping portion 22.

[0034] A first slot 11 is provided at one end of the handle 1, and the first slot 11 is a polygonal structure. The outer periphery of the valve's rotating axis is snapped into the first slot 11. As shown in the figure, the first slot 11 is a rectangular structure, and can also be set to a variety of shapes such as a triangle during implementation, which can be adjusted according to the valve's rotating axis.

[0035] like Figure 1 and Figure 5As shown, the clamping portion 22 includes a chuck 4, which is fixedly mounted on the valve, and serrations 41 are evenly distributed on the periphery of the chuck 4. One end of the clamping handle 2 can be clamped into the serrations 41. The handle 1 is rotated according to the opening, and then the relative positions of the clamping handle 2, the handle 1 and the valve are locked by the serrations 41, so that the valve opening is locked. In order to facilitate the reading and recording of the opening, opening marks 42 are evenly distributed circumferentially on the upper end of the chuck 4, and an indicating portion 13 is provided at one end of the handle 1. The indicating portion 13 is used to indicate the opening mark 42. A first through hole 21 is provided on the upper side of one end of the clamping handle 2, and a clamping portion 22 is provided on the lower side of one end of the clamping handle 2. The clamping portion 22 can be clamped into the serrations 41. The indicating portion 13 of this embodiment is an indicating needle, which can also be achieved by setting a protrusion or a groove or the like during implementation. The specific selection is based on the working conditions and will not be repeated here.

[0036] In implementation, the locking assembly 6 has multiple implementations:

[0037] In the first embodiment of the locking assembly 6, the locking assembly 6 is an axle pin. The staff only needs to pass the axle pin through the first through hole 21 and the second through hole 12 to lock the relative position of the handle 2 and the handle 1. The handle 2 and the chuck 4 can be locked and opened by plugging or unplugging. It can also be replaced by other cylindrical structural parts during implementation, which will not be repeated here.

[0038] In the second embodiment of the locking assembly 6, the locking assembly 6 is a padlock of the prior art, through which the handle 2 and the chuck 4 can be locked and unlocked, and the padlock key is required to perform the operation to prevent staff from operating the padlock incorrectly.

[0039] In the third embodiment of the locking assembly 6, the locking assembly 6 includes a locking pin 61, the periphery of the locking pin 61 is located in the first through hole 21 and the second through hole 12 for fixing the relative position of the handle 1 and the card handle 2, and a locking head is provided at one end of the locking pin 61, and the locking head is used to fix the relative position of the locking pin 61. The locking pin 61 can pass through the first through hole and the second through hole 12 to fix the relative position of the card handle 2 and the handle 1, and then the relative position of the locking pin 61 is locked by the locking head, so that the staff can conditionally operate the card handle 2, and if Figure 8 As shown, the locking pin 61 is a T-shaped structure, one end of the locking pin 61 can abut against the outside of the handle 1, and the other end of the locking pin 61 passes through the first through hole 21 and the second through hole 12 in sequence and then the locking head is installed. The relative position of one end of the locking pin 61 and the handle 1 or the clamping handle 2 is locked by the T-shaped structure, and the relative position of the other end of the locking pin 61 and the handle 1 or the clamping handle 2 is locked by the locking head. The locking head and the T-shaped end are in the same axial direction, which is convenient for personnel to operate.

[0040] The lock head includes an upper shell 62 and a lower shell 63, and one end of the upper shell 62 is rotatably connected to one end of the lower shell 63 through a first central axis 64, and a second slot is provided on the lower side of the upper shell 62, and a third slot is provided on the upper side of the lower shell 63. The second slot and the third slot are used to fix the relative position of the locking pin 61 and the upper shell 62 and the lower shell 63. The upper shell 62 and the lower shell 63 of the opening and closing structure are convenient for locking and opening the periphery of the locking pin 61, and in order to prevent the locking pin 61 from axially sliding in the locked state, an annular groove 65 is provided on the periphery of the locking pin 61, and the annular groove 65 can be snapped into the third slot and the second slot.

[0041] The upper shell 62 is fixedly provided with a locking piece 66, and a push pin 67 is provided in the lower shell 63. A third through hole is provided in the middle of the locking piece 66, and one end of the push pin 67 can abut against the third through hole. The locking piece 66 and the push pin 67 are an opening and closing structure for the relative positions of the upper shell 62 and the lower shell 63. The connection between the push pin 67, the lower shell 63 and the locking piece 66 and the upper shell 62 is realized through the third through hole around the end of the push pin 67, and the end of the push pin 67 can slide in the axial direction. In order to limit the relative position of the push pin 67, a baffle 68 is fixedly installed on the periphery of the push pin 67, and a second spring 69 is fixedly provided at one end of the baffle 68, and one end of the second spring 69 is fixedly connected to the inner wall of the lower shell 63. The second spring 69 is used for elastic reset of the relative position of the push pin 67. In implementation, the push pin 67 realizes axial sliding by magnetic attraction of a magnetic key, so at least one of the push pin 67 and the baffle 68 is made of a metal material such as iron that can be magnetically attracted.

[0042] One end of the lower shell 63 is provided with a mounting groove, in which a sleeve 610 is arranged, and a second spring 69 is arranged in the sleeve 610, a cover 611 is installed at one end of the sleeve 610, and a fourth through hole is arranged in the middle of the cover 611, the periphery of the ejector pin 67 is located in the fourth through hole, and one end of the baffle 68 can abut against the lower end of the cover 611, and the other end of the baffle 68 is fixedly connected to one end of the second spring 69, and the other end of the second spring 69 is fixedly connected to the bottom of the sleeve 610, and the periphery of the baffle 68 can slide axially in the sleeve 610. The second spring 69, the baffle 68 and the ejector pin 67 are integrated in the sleeve 610 to facilitate the disassembly and assembly of the ejector assembly to realize the maintenance of this part of parts, and to facilitate the end of the ejector pin to slide into the third through hole, such as Fig. 9 As shown, a cutout 612 is provided at the lower end of the locking piece 66 .

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lockable handle for a valve, characterized in that: The invention comprises a handle (1), the handle (1) is clamped to the rotating shaft of the valve, and a clamping portion (22) is installed on the valve, the clamping portion (22) is used to fix the relative position of one end of the clamping handle (2), and the middle part of the clamping handle (2) is hinged to the middle part of the handle (1), the clamping handle (2) is provided with a first through hole (21), and the handle (1) is provided with a second through hole (12), and the periphery of the locking assembly (6) is respectively located in the first through hole (21) and the second through hole (12) for fixing the relative position of the handle (1) and the clamping handle (2).

2. A lockable handle for a valve according to claim 1, characterized in that: It also comprises a first spring (3), and two ends of the first spring (3) are respectively fixedly connected to one side of the handle (1) and one side of the clamping handle (2).

3. A lockable handle for a valve according to claim 1, characterized in that: A first clamping groove (11) is provided at one end of the handle (1), and the first clamping groove (11) is a polygonal structure, and the periphery of the rotating shaft of the valve is clamped into the first clamping groove (11).

4. A lockable handle for a valve according to claim 1, characterized in that: The clamping portion (22) comprises a clamping disc (4), which is fixedly mounted on the valve. The outer periphery of the clamping disc (4) is evenly distributed with saw teeth (41), and one end of the clamping handle (2) can be clamped into the saw teeth (41).

5. A lockable handle for a valve according to claim 4, characterized in that: The upper end of the chuck (4) is evenly distributed with opening marks (42) along the circumferential direction, and an indicating portion (13) is provided at one end of the handle (1), and the indicating portion (13) is used to indicate the opening mark (42).

6. A lockable handle for a valve according to claim 4, characterized in that: A first through hole (21) is provided on the upper side of one end of the clamping handle (2), and a clamping portion (22) is provided on the lower side of one end of the clamping handle (2), and the clamping portion (22) can be clamped into the saw teeth (41).

7. The lockable handle for a valve according to claim 1, characterized in that: The locking component (6) is a shaft pin.

8. The lockable handle for a valve according to claim 1, characterized in that: The locking assembly (6) is a padlock.

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