Safe and reliable valve handle

Abstract

The utility model provides a safe and reliable valve handle which comprises a handle body, the handle body comprises a clamping head and a rod portion located on the lower side of the clamping head, a clamping through groove is formed in the middle of the clamping head, a limiting groove communicated with the clamping through groove is formed in the upper side wall of the clamping head, and a limiting block is arranged in the limiting groove. The lower portion of the limiting block can be exposed out of the limiting groove along the tail end of the limiting groove, the outer side of the rod part is sleeved with a sleeve, and the upper side of the sleeve can be in threaded connection with the upper side or the lower side of the rod part. The valve handle has the advantages that the handle can be disassembled and assembled on a valve conveniently and rapidly without assistance of additional tools, meanwhile, the rod portion of the handle can be lengthened by adjusting the connecting position of the sleeve, more labor is saved when an operator rotates the valve handle, and the operation can be completed without assistance of the additional tools.

Description

Technical Field

[0001] The utility model belongs to the field of valve accessories, in particular to a safe and reliable valve handle. Background Art

[0002] In the field of fine chemical production, various daily production operations involve the opening and closing of valves. Usually, multiple valves are set up in the production line. Although the degree of automation has been continuously improved in recent years, manual operation cannot be fundamentally avoided, so manual opening and closing of valves cannot be replaced. The handle of the common ball valve on the market usually has one end sleeved and stuck on the corresponding protrusion on the valve. However, the following two problems are often found during operation: due to the shaking of the equipment or pipeline, the handle on the valve will fall off and be missing. When opening or closing, it is necessary to find the valve handle for operation, which will waste a certain amount of time. If the handle cannot be found in a short time, certain quality or even safety accidents may occur; some valves have certain difficulties in opening and closing, which is often caused by unclean media in the pipeline or device sticking or blocking the valve core. Therefore, a booster rod is needed to assist in opening or closing the operation, and the booster rod is not always available around. Therefore, if a suitable booster rod cannot be found in a short time, it will also cause quality or safety problems. Utility Model Content

[0003] In view of this, the utility model aims to overcome the deficiencies of the above-mentioned problems in the prior art and provides a safe and reliable valve handle.

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

[0005] A safe and reliable valve handle comprises a handle body, the handle body comprises a clamping joint and a rod portion located at the lower side of the clamping joint, a clamping groove is provided in the middle of the clamping joint, a limiting groove connected to the clamping groove is provided on the upper side wall of the clamping joint, a limiting block is provided in the limiting groove, and the lower part of the limiting block can expose the limiting groove along the end of the limiting groove, a sleeve is sleeved on the outer side of the rod portion, and the upper side of the sleeve can be screwed on the upper side or the lower side of the rod portion.

[0006] Furthermore, the end of the limiting groove is arranged as an arc surface structure with a bottom opening, the limiting block is a spherical structure, and the diameter of the limiting block is larger than the opening width of the bottom of the arc surface.

[0007] Furthermore, a spring abutting against the limit block is provided in the limit groove at the upper side of the limit block, and a bolt is screwed at the upper opening of the limit groove, and the upper end of the spring abuts against the bottom of the bolt.

[0008] Furthermore, the spring is in a compressed state, and when one side of the limiting block is exposed from the end of the limiting groove, the elastic force of the spring is greater than the sum of the gravity of the limiting block and the gravity of the spring.

[0009] Furthermore, the upper and lower sides of the rod are both provided with external threads, the upper side of the sleeve is provided with internal threads, the sleeve is sleeved on the outside of the rod, and is screwed to the upper or lower side of the rod through the internal threads cooperating with the external threads on the upper or lower side of the rod.

[0010] Furthermore, the length of the sleeve matches the length of the rod.

[0011] Furthermore, an inclined portion is provided between the clamping joint and the rod portion.

[0012] Furthermore, the clamping joint, the inclined portion and the rod portion are an integrally formed structure.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The safe and reliable valve handle described in the utility model clamps the handle body to the corresponding protrusion on the valve through the clamping groove, and at this time the lower part of the limit block is exposed from the end of the limit groove and clamped into the corresponding groove on the protrusion; a sleeve is sleeved on the outer side of the rod of the handle body, and the upper side of the sleeve can be fixed on the upper and lower sides of the rod, and the position of the sleeve can be adjusted according to actual use. When it is necessary to increase the force to rotate the rod, the sleeve is unscrewed from the upper side of the rod and moved to the lower side of the rod, and then the sleeve is screwed on the lower side of the rod for fixation; the handle is easy to disassemble and assemble on the valve, and no additional tools are required for assistance. At the same time, the rod of the handle can be extended by adjusting the connection position of the sleeve, so that the operator can save more effort when rotating, and no additional tools are required to assist in the completion; the handle can effectively avoid quality or safety problems caused by loss and inconvenient disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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:

[0016] Figure 1 This is a schematic diagram of the structure of a safe and reliable valve handle according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the handle body according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the casing structure according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure in which the sleeve according to the embodiment of the utility model is connected to the lower side of the rod;

[0020] Figure 5 This is a cross-sectional view of the card joint structure described in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Handle body; 101. Card joint; 1011. Card connection groove; 1012. Limiting groove; 1013. Arc surface; 102. Rod; 103. Inclined portion; 2. Sleeve; 3. Valve; 301. Protrusion; 3011. Groove; 4. Limiting block; 5. Spring; 6. Bolt. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] As shown in the figure, a safe and reliable valve handle includes a handle body 1, the handle body 1 includes a clamping joint 101 and a rod 102 located at the lower side of the clamping joint 101, a clamping groove 1011 is provided in the middle of the clamping joint 101, a limiting groove 1012 connected to the clamping groove 1011 is provided on the upper side wall of the clamping joint, a limiting block 4 is provided in the limiting groove 1012, and the lower part of the limiting block 4 can expose the limiting groove 1012 along the end of the limiting groove 1012, a sleeve 2 is sleeved on the outer side of the rod 102, and the upper side of the sleeve 2 can be screwed on the upper side or lower side of the rod 102. In this embodiment, in order to cooperate with the use of the handle, a groove 3011 is opened on the protrusion 301 on the valve 3 corresponding to the limit block 4, and the handle body 1 is clamped on the corresponding protrusion 301 on the valve 3 by the clamping groove 1011. At this time, the lower part of the limit block 4 is exposed from the end of the limit groove 1012 and is clamped into the corresponding groove 3011 on the protrusion 301. The handle is easy to disassemble and assemble on the valve 3 without the assistance of additional tools; a sleeve 2 is sleeved on the outer side of the rod 102 of the handle body 1, and the upper side of the sleeve 2 can be fixed on the upper and lower sides of the rod 102. The position of the sleeve 2 can be adjusted according to actual usage. When it is necessary to apply force to rotate the rod 102, the sleeve 2 is unscrewed from the upper side of the rod 102 and moved to the lower side of the rod 102, and then the sleeve 2 is screwed on the lower side of the rod 102 and fixed.

[0028] The end of the limiting groove 1012 is set as an arc surface 1013 structure with a bottom opening. The limiting block 4 is a spherical structure, and the diameter of the limiting block 4 is larger than the opening width at the bottom of the arc surface 1013 to prevent the limiting block 4 from being completely exposed from the opening at the bottom of the arc surface 1013.

[0029] A spring 5 is provided in the limiting groove 1012 at the upper side of the limiting block 4 and abuts against the limiting block 4, and a bolt 6 is screwed at the upper opening of the limiting groove 1012, and the upper end of the spring 5 abuts against the bottom of the bolt 6. In this embodiment, the spring 5 and the limiting block 4 are limited by the bolt 6 to prevent them from being separated from the limiting groove 1012. When the clamping joint 101 is clamped on the protrusion 301 through the clamping groove 1011, the lower part of the limiting block 4 will be pushed out of the limiting groove 1012 and enter the groove 3011 on the protrusion 301 under the action of the spring 5, so that the handle body 1 is more firmly clamped on the protrusion 301 of the valve 3.

[0030] The spring 5 is in a compressed state, and when one side of the limit block 4 exposes the end of the limit groove 1012, the elastic force of the spring 5 is greater than the sum of the gravity of the limit block 4 and the gravity of the spring 5. In this way, no matter at which angle the valve 3 is installed, even if the handle body 1 is installed at the bottom of the valve 3, the handle body 1 will not separate from the valve 3.

[0031] The upper and lower sides of the rod 102 are both provided with external threads, and the upper side of the sleeve 2 is provided with internal threads. The sleeve 2 is sleeved on the outer side of the rod 102, and is screwed on the upper or lower side of the rod 102 through the internal threads and the external threads on the upper or lower side of the rod 102. In this embodiment, the sleeve 2 that can be screwed on the upper or lower side of the rod 102 is sleeved on the outer side of the rod 102, and the length of the rod 102 can be extended through the sleeve 2, so that the force effect of the handle is realized, and the time for opening or closing the valve 3 when needed is reduced.

[0032] The length of the sleeve 2 matches the length of the rod 102 , ensuring that when the upper side of the sleeve 2 is fixed to the upper side of the rod 102 , the entirety still maintains the original length of the rod 102 and matches the valve 3 .

[0033] An inclined portion 103 is provided between the clamping joint 101 and the rod portion 102 , so that the rod portion 102 is arranged backward away from the valve body, providing an operating space for an operator when holding the rod portion 102 .

[0034] The clamping joint 101 , the inclined portion 103 and the rod portion 102 are an integrally formed structure.

[0035] The working process of this embodiment is as follows:

[0036] The handle body 1 is clamped on the corresponding protrusion 301 on the valve 3 through the clamping groove 1011. At this time, under the elastic force of the spring 5, the lower part of the limit block 4 is exposed from the end of the limit groove 1012 and is clamped into the corresponding groove 3011 on the protrusion 301. When the handle needs to be removed, the operator only needs to pull it outward with force to make the limit block 4 disengage from the groove 3011; when the valve 3 needs a lot of force to turn the handle after long-term use, the sleeve 2 can be adjusted to the lower side of the rod 102 and fixed, and the overall structure composed of the rod 102 and the sleeve 2 can be lengthened, which is more labor-saving when turning.

[0037] 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 safe and reliable valve handle, characterized by: The utility model comprises a handle body, which comprises a clamping joint and a rod part located at the lower side of the clamping joint. A clamping groove is arranged in the middle of the clamping joint. A limiting groove connected with the clamping groove is arranged on the upper side wall of the clamping joint. A limiting block is arranged in the limiting groove, and the lower part of the limiting block can expose the limiting groove along the end of the limiting groove. A sleeve is sleeved on the outer side of the rod part, and the upper side of the sleeve can be screwed on the upper side or the lower side of the rod part.

2. A safe and reliable valve handle according to claim 1, characterized in that: The end of the limiting groove is arranged as an arc surface structure with a bottom opening, the limiting block is a spherical structure, and the diameter of the limiting block is larger than the opening width of the bottom of the arc surface.

3. A safe and reliable valve handle according to claim 1, characterized in that: A spring abutting against the limiting block is arranged in the limiting groove at the upper side of the limiting block, and a bolt is screwed at the upper opening of the limiting groove, and the upper end of the spring abuts against the bottom of the bolt.

4. A safe and reliable valve handle according to claim 3, characterized in that: The spring is in a compressed state, and when one side of the limit block is exposed from the end of the limit groove, the elastic force of the spring is greater than the sum of the gravity of the limit block and the gravity of the spring.

5. A safe and reliable valve handle according to claim 1, characterized in that: The upper and lower sides of the rod are both provided with external threads, the upper side of the sleeve is provided with internal threads, the sleeve is sleeved on the outer side of the rod, and is screwed to the upper or lower side of the rod through the internal threads cooperating with the external threads on the upper or lower side of the rod.

6. A safe and reliable valve handle according to claim 1, characterized in that: The sleeve length matches the rod length.

7. A safe and reliable valve handle according to claim 1, characterized in that: An inclined portion is provided between the clamping joint and the rod portion.

8. A safe and reliable valve handle according to claim 7, characterized in that: The clamping joint, the inclined portion and the rod portion are an integrally formed structure.

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