Locking device of valve

Abstract

The utility model belongs to the technical field of valves, and particularly provides a locking device of a valve. The utility model aims to solve the problems that the production flow is blocked and even production equipment is damaged due to valve state switching caused by mistaken touch of an operator in the conventional manual valve. The valve comprises a valve body, the locking device comprises a limiting structure and a handle assembly, and the limiting structure is fixedly connected with the valve body; the handle assembly is connected with the valve body; and the handle assembly can be clamped with the limiting structure, so that the valve is in a locked state. The device is simple in structure, low in manufacturing cost and easy to implement.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves and specifically provides a locking device for a valve. Background Art

[0002] Manual ball valve is a valve that is driven by the valve stem to rotate around the ball valve axis. Manual ball valve is generally installed on the pipeline, used to close a certain equipment pipeline during debugging, repair and maintenance of equipment, so as to achieve the function of separate debugging, repair and maintenance of other pipelines of the equipment.

[0003] However, the existing manual ball valve is very easy for the operator to accidentally touch the valve stem, causing the state of the ball valve to switch (i.e., from the normally open state to the closed state or from the closed state to the normally open state), which leads to a sudden increase or decrease in the flow of water, oil or other fluids in the pipeline, causing some functions of the equipment (such as cooling and lubrication functions) to suddenly fail, causing the running equipment to stop running due to a fault, and even causing irreversible damage to the equipment in severe cases. Therefore, there is an urgent need for a manual valve that can avoid the above problems. Utility Model Content

[0004] One object of the utility model is to provide a manual valve locking device which can lock the valve as a whole.

[0005] In order to achieve the above object, the utility model provides a valve locking device, comprising:

[0006] Valve body;

[0007] A limiting structure, which is fixedly connected to the valve body;

[0008] A handle assembly is connected to the valve body; the handle assembly can be locked with the limiting structure so that the valve is in a locked state.

[0009] Furthermore, the handle assembly includes a handle and a sliding member, the handle includes a connecting rod segment and a grip; the sliding member is slidably connected to the connecting rod segment, and the sliding member can slide to a position engaged with the limiting structure; or, the sliding member can slide to a position away from the limiting structure.

[0010] Further, the connecting rod section includes a first slide groove and a second slide groove, the first slide groove and the second slide groove are connected, and the groove width of the first slide groove is greater than the groove width of the second slide groove; the sliding member can be embedded in the first slide groove and the second slide groove, and the sliding member can slide in the first slide groove; or, the sliding member is clamped in the second slide groove.

[0011] Further, the connecting rod section includes a first slide groove and a second slide groove, the first slide groove and the second slide groove are connected, and the groove width of the first slide groove is greater than the groove width of the second slide groove; the handle assembly also includes a slider, the slider is fixedly connected to the sliding member, and the slider is configured to be able to slide in the second slide groove; or, the slider can be engaged with the first slide groove.

[0012] Furthermore, the first sliding groove and the second sliding groove penetrate the connecting rod section; or, the first sliding groove and the second sliding groove are opened on the inner side of the connecting rod section.

[0013] Furthermore, the sliding member is configured as a sliding sleeve, and the sliding sleeve is arranged on the outside of the connecting rod section.

[0014] Furthermore, one side of the sliding member has a clamping portion, and the clamping portion is used to be clamped with two edges of the limiting structure.

[0015] Furthermore, one end of the limiting structure is fixedly connected to the valve body, and the other end thereof is arranged perpendicular to the guide direction of the pipeline connected to the valve body; the limiting structure is clamped with the clamping part, so that the valve is in a locked state.

[0016] Furthermore, the valve also includes a bolt, and the bolt passes through the handle and the limiting structure in sequence to be connected to the valve body.

[0017] Furthermore, the valve further comprises an anti-slip sleeve, which is arranged on the outside of the handle; and / or the sliding member is configured to be made of rubber material.

[0018] Based on the above description, those skilled in the art can understand that in the above technical solution of the utility model, by adding a limit structure, the handle assembly is locked with the limit structure, so that the manual valve is in a locked state. The utility model effectively solves the problem that the existing manual valve is accidentally touched by the operator to switch the valve state, which leads to obstruction of the production process and even damage to the production equipment. It has a simple structure, low cost and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the utility model, some embodiments of the utility model will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same figure number indicates the same or similar parts or components in different drawings; the drawings of the utility model are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 is a first structural schematic diagram of a valve and a locking device in some embodiments of the utility model;

[0021] Figure 2 yes Figure 1 A second structural schematic diagram of the valve and the locking device;

[0022] Figure 3 yes Figure 1 Side view of the valve and locking device;

[0023] Figure 4 yes Figure 1 A third structural schematic diagram of the valve and the locking device;

[0024] Figure 5 yes Figure 1 Schematic diagram of part of the structure of the middle handle.

[0025] Description of reference numerals:

[0026] 100. Valve;

[0027] 1. Valve body; 2. Handle; 3. Limiting structure; 4. Sliding part; 5. Clamping part; 6. Second slide groove; 7. Sliding block; 8. First slide groove; 9. Bolt. DETAILED DESCRIPTION

[0028] It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention, and the embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0029] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In addition, it should be noted that in the description of the present invention, 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] Refer to the following Figures 1 to 5 The locking device of the valve in some embodiments of the present invention is described in detail. Figure 1 is a first structural schematic diagram of a valve and a locking device in some embodiments of the utility model; Figure 2 yes Figure 1 A second structural schematic diagram of the valve and the locking device; Figure 3 yes Figure 1 Side view of the valve and locking device; Figure 4 yes Figure 1 A third structural schematic diagram of the valve and the locking device; Figure 5 yes Figure 1 Schematic diagram of the partial structure of the middle handle.

[0032] It should be noted that, for the convenience of description and to enable those skilled in the art to quickly understand the technical solution of the present invention, the following text only describes the technical features that are strongly related (directly or indirectly related) to the technical problem and / or technical concept to be solved by the present invention, and does not describe the technical features that are weakly related to the technical problem and / or technical concept to be solved by the present invention. Since the technical features with a weaker degree of correlation belong to the common knowledge in the field, even if the present invention does not describe the features with a weaker degree of correlation, it will not lead to insufficient disclosure of the present invention.

[0033] like Figures 1 to 4 As shown, in some embodiments of the present utility model, a locking device of a valve 100 is provided, the valve 100 includes a valve body 1, the locking device includes a limiting structure 3 and a handle assembly, and the limiting structure 3 is fixedly connected to the valve body 1. The handle assembly is connected to the valve body 1, and the handle assembly can be locked with the limiting structure 3, so that the valve is in a locked state.

[0034] The handle assembly includes a handle 2 and a sliding member 4 . The sliding member 4 is slidably connected to the handle 2 , and the sliding block can be engaged with the limiting structure 3 .

[0035] The handle 2 includes a connecting rod section and a grip, and the handle assembly also includes a sliding member 4, which is slidably connected to the connecting rod section and can slide to a position where it is engaged with the limiting structure 3. Alternatively, the sliding member can slide to a position away from the limiting structure 3.

[0036] like Figure 5 As shown, the connecting rod section includes a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are connected, and the groove width of the first sliding groove is greater than the groove width of the second sliding groove.

[0037] In some examples of this embodiment, the sliding member 4 can be embedded in the first sliding groove and the second sliding groove, and the sliding member 4 can slide in the first sliding groove; or the sliding member 4 is clamped in the second sliding groove 6. In this example, the first sliding groove 8 and the second sliding groove 6 are opened on the inner side of the connecting rod segment.

[0038] In some other examples of this embodiment, the handle assembly further includes a slider 7, the slider 7 is fixedly connected to the slider 4, and the slider 7 is configured to be able to slide in the second slide groove; or the slider 7 can be clamped with the first slide groove. In this example, the first slide groove 8 and the second slide groove 6 pass through the connecting rod section. Or, the first slide groove 8 and the second slide groove 6 are opened on the inner side of the connecting rod section. In this example, the slider 4 is configured as a sliding sleeve, and the sliding sleeve is arranged on the outer side of the connecting rod section.

[0039] The slider 7 can be configured to be integrally formed with the slider 4. Alternatively, the slider 7 is fixedly connected to the slider 4. Specifically, the fixed connection method can be set to be threaded or adhesive. Alternatively, the slider 4 is provided with a mounting hole, and the slider 7 can be fixedly installed with the slider 4 through the mounting hole. Further specifically, a first clamping structure is provided in the mounting hole, and a second clamping structure is provided on the slider 7, and the first clamping structure is clamped with the second clamping structure to fix the slider 7 with the slider 4.

[0040] In some other embodiments of the present invention, a clamping portion 5 is provided on one side of the sliding member 4 , and the clamping portion 5 is used to be clamped with two edges of the limiting structure 3 .

[0041] The sliding member 4 is made of rubber material.

[0042] In some other embodiments of the utility model, a third clamping structure is provided on the edge of the clamping portion 5, and a fourth clamping structure is provided on the limiting structure 3. The third clamping structure and the fourth clamping structure are clamped together to clamp the clamping portion 5 and the limiting structure 3 together.

[0043] In this embodiment, one end of the limiting structure 3 is fixedly connected to the valve body 1, and the other end thereof is arranged perpendicular to the guide direction of the pipeline connected to the valve body 1. The limiting structure 3 is clamped with the handle assembly so that the valve 100 is in a locked state. Specifically, the limiting structure 3 is clamped with the clamping portion 5 so that the valve 100 is in a locked state. Among them, the fixed connection method of the limiting structure 3 and the valve body 1 can be set to be integrally formed by an injection molding process.

[0044] In other embodiments of the present invention, the limiting structures 3 are configured as two, and the two limiting structures 3 are relatively vertically arranged. The first limiting structure is clamped with the clamping portion 5, and the valve 100 is in an open and locked state; the second limiting structure is clamped with the clamping portion 5, and the valve 100 is in a closed and locked state. One end of each limiting structure is fixedly connected to the valve body 1, and the other end thereof extends toward the handle assembly.

[0045] The valve 100 further includes a bolt 9 , which passes through the handle 2 and the limiting structure 3 in sequence and is connected to the valve body 1 .

[0046] In other embodiments of the present invention, the valve 100 further includes an anti-slip sleeve, which is disposed on the outside of the handle to facilitate the user to open and close the valve 100 .

[0047] Those skilled in the art can understand that the present invention adds a limiting structure 3 so that the handle assembly is locked with the limiting structure 3, so that the manual valve 100 is in a locked state. The present invention effectively solves the problem that the existing manual valve 100 is accidentally touched by the operator, causing the state of the valve 100 to be switched, resulting in obstruction of the production process and even damage to the production equipment. The structure is simple, the cost is low, and it is easy to implement.

[0048] So far, the technical solution of the utility model has been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope of the utility model is not limited to these specific embodiments. Without departing from the technical principle of the utility model, those skilled in the art can split and combine the technical solutions in the above embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principle of the utility model will fall within the protection scope of the utility model.

Claims

1. A valve locking device, characterized in that: The valve comprises a valve body, and the locking device comprises: A limiting structure, which is fixedly connected to the valve body; A handle assembly is connected to the valve body; the handle assembly can be locked with the limiting structure so that the valve is in a locked state.

2. The valve locking device according to claim 1, characterized in that: The handle assembly comprises a handle and a sliding member, and the handle comprises a connecting rod section and a grip; The sliding member is slidably connected to the connecting rod segment, and the sliding member can slide to a position where it is engaged with the limiting structure; or the sliding member can slide to a position away from the limiting structure.

3. The valve locking device according to claim 2, characterized in that: One side of the sliding member has a clamping portion, and the clamping portion is used to clamp with two edges of the limiting structure.

4. The valve locking device according to claim 3, characterized in that: One end of the limiting structure is fixedly connected to the valve body, and the other end thereof is arranged perpendicular to the guide direction of the pipeline connected to the valve body; The limiting structure is engaged with the engaging portion, so that the valve is in a locked state.

5. The valve locking device according to claim 2, characterized in that: The connecting rod section includes a first sliding groove and a second sliding groove, the first sliding groove is connected to the second sliding groove, and the groove width of the first sliding groove is greater than the groove width of the second sliding groove; The sliding member can be embedded in the first sliding groove and the second sliding groove, and the sliding member can slide in the first sliding groove; or the sliding member is clamped in the second sliding groove.

6. The valve locking device according to claim 2, characterized in that: The connecting rod section includes a first sliding groove and a second sliding groove, the first sliding groove is connected to the second sliding groove, and the groove width of the first sliding groove is greater than the groove width of the second sliding groove; The handle assembly further comprises a sliding block, the sliding block is fixedly connected to the sliding member, and the sliding block is configured to be able to slide in the second sliding groove; or the sliding block can be engaged with the first sliding groove.

7. The locking device of a valve according to any one of claims 5 and 6, characterized in that: The first sliding groove and the second sliding groove pass through the connecting rod section; or, The first sliding groove and the second sliding groove are arranged on the inner side of the connecting rod segment.

8. The valve locking device according to claim 6, characterized in that: The sliding member is configured as a sliding sleeve, and the sliding sleeve is sleeved on the outer side of the connecting rod section.

9. The valve locking device according to claim 8, characterized in that: The valve further comprises a bolt, which passes through the handle and the limiting structure in sequence and is connected to the valve body.

10. The valve locking device according to claim 2, characterized in that: The valve further comprises an anti-slip sleeve, which is disposed on the outside of the handle; and / or, The sliding member is made of rubber material.

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