Steel valve chain lock

Abstract

The utility model provides a kind of steel valve chain lock, including locking assembly, first locking mechanism and chain, wherein, locking assembly is equipped in the top of ball valve, locking cavity is equipped on locking assembly, and the valve core switch of ball valve is equipped in locking cavity;First locking mechanism is equipped in the bottom of locking assembly, and first locking mechanism is used to fix locking assembly and ball valve in axial direction;Chain is equipped on locking assembly at one end, and chain is locked with locking assembly after passing through the valve body of ball valve, to fix locking assembly and ball valve in radial direction.The utility model forms protective barrier by locking cavity full package valve core switch, cooperates with the first locking mechanism of axial fixation and the chain of radial fixation to form three-dimensional constraint, so that the valve core switch of ball valve is completely separated from contactable range, double locking mechanism breaks through the passive protection mode of traditional warning sign, fundamentally eliminates the physical possibility of valve stem rotation, and then prevents ball valve from opening when stopping gas maintenance, improves the safety of pipe network maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of safety protection devices, and more specifically, it relates to a steel valve chain lock. Background Technology

[0002] Gas pipelines are the "lifeline" of urban energy supply, but because the gas they transport has flammable, explosive, and toxic properties, they must be maintained regularly to ensure safe operation.

[0003] During maintenance or construction work that requires shutting down ball valves to stop gas supply, although warning signs are set up, accidents can still occur due to malicious damage or misoperation that cause the ball valves to open, resulting in serious personal and property losses, if no one is specifically assigned to supervise. Utility Model Content

[0004] The purpose of this invention is to provide a steel valve chain lock to improve the safety of gas pipeline maintenance during gas outages.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a steel valve chain lock includes a locking assembly, a first locking mechanism, and a chain. The locking assembly is located at the top of the ball valve and has a locking cavity, in which the valve core of the ball valve is located. The first locking mechanism is located at the bottom of the locking assembly and is used to fix the locking assembly and the ball valve axially. One end of the chain is located on the locking assembly and, after passing around the valve body of the ball valve, locks with the locking assembly to fix the locking assembly and the ball valve radially.

[0006] In one possible implementation, the locking assembly includes a locking plate and a locking cylinder, the locking cylinder being disposed on top of the locking plate, the internal space of the locking cylinder being the locking cavity, and a through hole being formed on the locking plate, through which the valve core of the ball valve can pass.

[0007] In one possible implementation, the locking cylinder is provided with a tightening bolt, which can be tightened against the valve core switch of the ball valve due to rotation.

[0008] In one possible implementation, the first locking mechanism includes a first limiting plate and a second limiting plate, which are respectively disposed on both sides of the locking assembly, and the distance between the first limiting plate and the second limiting plate is not less than the width of the valve body.

[0009] In one possible implementation, the first limiting plate has a clearance hole, and the ball valve limiter is inserted into the clearance hole.

[0010] In one possible implementation, a first hanging ring is provided on one side of the locking plate, and one end of the chain is hung on the first hanging ring; a locking ring is provided on the other side of the locking plate, and a locking member is provided between the other end of the chain and the locking ring. When the locking member is locked, the other end of the chain is fixed relative to the locking ring.

[0011] In one possible implementation, the locking element can be any of a padlock, a U-lock, or a chain lock.

[0012] In one possible implementation, the locking plate is provided with a locking rod that extends along the thickness direction of the locking plate, and the locking ring is located at the top of the locking rod.

[0013] The beneficial effects of the steel valve chain lock provided by this utility model are as follows: Compared with the prior art, this utility model forms a protective barrier by fully enclosing the valve core switch in the locking cavity. Combined with the axially fixed first locking mechanism and the radially fixed chain, it forms a three-dimensional constraint, which completely removes the valve core switch of the ball valve from the accessible range. The dual locking mechanism breaks through the passive protection mode of traditional warning signs, fundamentally eliminating the physical possibility of valve stem rotation, thereby preventing the ball valve from opening during gas outage maintenance and improving the safety of pipeline maintenance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the steel valve chain lock at one angle provided in an embodiment of this utility model;

[0016] Figure 2 A structural schematic diagram of the steel valve chain lock provided in an embodiment of this utility model from another angle;

[0017] Figure 3 This is a schematic diagram of the structure of the ball valve provided in an embodiment of the present utility model.

[0018] The labels for the attached figures are as follows:

[0019] 1. Ball valve; 2. Locking element; 3. First locking mechanism; 4. Chain;

[0020] 101. Valve core switch;

[0021] 201. Locking plate; 202. Locking cylinder; 203. Locking cavity; 204. Tightening bolt; 205. First hanging ring; 206. Locking ring; 207. Locking component; 208. Locking rod;

[0022] 301. First limiting plate; 302. Second limiting plate. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] It should be further noted that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.

[0025] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] The terms “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0028] The steel valve chain lock provided by this utility model will now be described.

[0029] Please refer to the following: Figures 1 to 3The steel valve chain lock includes a locking assembly 2, a first locking mechanism 3, and a chain 4. The locking assembly 2 is located at the top of the ball valve 1 and has a locking cavity 203. The valve core switch 101 of the ball valve 1 is located in the locking cavity 203. The first locking mechanism 3 is located at the bottom of the locking assembly 2 and is used to fix the locking assembly 2 and the ball valve 1 axially. One end of the chain 4 is located on the locking assembly 2. The chain 4 passes around the valve body of the ball valve 1 and locks with the locking assembly 2 to fix the locking assembly 2 and the ball valve 1 radially.

[0030] The beneficial effects of the steel valve chain lock provided in this embodiment are as follows: Compared with the prior art, the steel valve chain lock provided in this embodiment forms a protective barrier by fully enclosing the valve core switch 101 through the locking cavity 203. It forms a three-dimensional constraint with the axially fixed first locking mechanism 3 and the radially fixed chain 4, so that the valve core switch 101 of the ball valve 1 is completely removed from the accessible range. The dual locking mechanism breaks through the passive protection mode of traditional warning signs, fundamentally eliminating the physical possibility of valve stem rotation, thereby preventing the ball valve 1 from opening during gas outage maintenance and improving the safety of pipeline maintenance.

[0031] In this embodiment, the locking assembly 2 includes a locking plate 201 and a locking cylinder 202. The locking cylinder 202 is located on top of the locking plate 201, and its internal space is a locking cavity 203. A through hole is provided on the locking plate 201, through which the valve core switch 101 of the ball valve 1 can pass. The locking cylinder 202 provides installation space for the locking cavity 203. At the same time, precise positioning and installation are achieved through the through hole, ensuring both physical isolation of the operating components and facilitating rapid production of the locking assembly 2.

[0032] In addition, the locking cylinder 202 is equipped with a tightening bolt 204, which can be tightened onto the valve core switch 101 of the ball valve 1 by rotation. Dynamic locking is achieved by mechanical tightening, and irreversible locking is formed by the self-locking characteristics of the threaded structure, which effectively resists violent damage and ensures the absolute locked state of the valve during maintenance.

[0033] like Figure 2 As shown, the first locking mechanism 3 includes a first limiting plate 301 and a second limiting plate 302. The first limiting plate 301 and the second limiting plate 302 are respectively disposed on both sides of the locking assembly 2, and the distance between the first limiting plate 301 and the second limiting plate 302 is not less than the width of the valve body. The double limiting plates form a rigid clamping structure, using the width of the valve body itself as a constraint reference to eliminate the risk of axial displacement, while providing intuitive visual alignment markings and reducing the probability of installation errors.

[0034] As a preferred technical solution, the first limiting plate 301 has an clearance hole, and the limiter of the ball valve 1 is inserted into the clearance hole. By nesting the clearance hole with the original limiter, structural compatibility with the original equipment is achieved, which not only retains the original safety device function of the valve, but also adds a new layer of physical protection.

[0035] A first hanging ring 205 is provided on one side of the locking plate 201, and one end of the chain 4 is hung on the first hanging ring; a locking ring 206 is provided on the other side of the locking plate 201, and a locking element 207 is provided between the other end of the chain 4 and the locking ring 206. When the locking element 207 is locked, the other end of the chain 4 is relatively fixed to the locking ring 206. The closed-loop chain 4 structure forms a multi-directional constraint, which, together with the detachable lock, realizes hierarchical access control, ensuring both rapid unlocking in emergency situations and ensuring that daily operations must be completed with special tools.

[0036] In this embodiment, the locking element 207 can be any of a padlock, a U-lock, or a chain lock. This multi-type lock compatibility design meets different security level requirements, allows for flexible selection of protection strength based on the site risk level, and is compatible with existing security equipment systems, reducing equipment upgrade costs.

[0037] Finally, a locking rod 208 is provided on the locking plate 201, extending along the thickness direction of the locking plate 201, and a locking ring 206 is located at the top of the locking rod 208. The three-dimensional locking rod 208 structure enhances the overall shear resistance, and the geometric reinforcement design keeps the stress point of the chain 4 away from the weak area, significantly improving the structural integrity of the device under extreme external impact.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel valve chain lock, characterized in that, include: A locking assembly (2) is provided on the top of the ball valve (1). The locking assembly (2) is provided with a locking cavity (203). The valve core switch (101) of the ball valve (1) is located in the locking cavity (203). The first locking mechanism (3) is located at the bottom of the locking assembly (2). The first locking mechanism (3) is used to fix the locking assembly (2) and the ball valve (1) in the axial direction. A chain (4) is provided at one end on the locking assembly (2). The chain (4) passes around the valve body of the ball valve (1) and locks with the locking assembly (2) to fix the locking assembly (2) and the ball valve (1) radially.

2. The steel valve chain lock as described in claim 1, characterized in that: The locking assembly (2) includes a locking plate (201) and a locking cylinder (202). The locking cylinder (202) is located on the top of the locking plate (201). The internal space of the locking cylinder (202) is the locking cavity (203). A through hole is provided on the locking plate (201) so that the valve core switch (101) of the ball valve (1) can pass through the through hole.

3. The steel valve chain lock as described in claim 2, characterized in that: The locking cylinder (202) is provided with a tightening bolt (204), which can be tightened on the valve core switch (101) of the ball valve (1) by rotation.

4. The steel valve chain lock as described in claim 3, characterized in that: The first locking mechanism (3) includes a first limiting plate (301) and a second limiting plate (302). The first limiting plate (301) and the second limiting plate (302) are respectively disposed on both sides of the locking assembly (2), and the distance between the first limiting plate (301) and the second limiting plate (302) is not less than the width of the valve body.

5. The steel valve chain lock as described in claim 4, characterized in that: The first limiting plate (301) has a clearance hole, and the limiter of the ball valve (1) is inserted into the clearance hole.

6. The steel valve chain lock as described in claim 5, characterized in that: The locking plate (201) has a first hanging ring (205) on one side, and one end of the chain (4) is hung on the first hanging ring; the locking plate (201) has a locking ring (206) on the other side, and a locking member (207) is provided between the other end of the chain (4) and the locking ring (206). When the locking member (207) is locked, the other end of the chain (4) is fixed relative to the locking ring (206).

7. The steel valve chain lock as described in claim 6, characterized in that: The locking element (207) can be any of a padlock, a U-lock, or a chain lock.

8. The steel valve chain lock as described in claim 7, characterized in that: The locking plate (201) is provided with a locking rod (208), which extends along the thickness direction of the locking plate (201), and the locking ring (206) is located at the top of the locking rod (208).

Images