A hanging lock for a quick connector
By designing a quick-connect lock with a tag-lock mechanism, the problems of cumbersome installation and disassembly, inconvenient operation, and susceptibility to misoperation of existing security locks have been solved, achieving fast and safe lock operation and an efficient user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 百威(温州)啤酒有限公司
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-16
Smart Images

Figure CN224363764U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tag-locking security locks, and more specifically to a tag-locking lock for quick-connect connectors. Background Technology
[0002] In industrial production and equipment maintenance, safety locks with tags are often used to ensure personnel safety and prevent accidental equipment activation. Currently, the market offers limited options for pneumatic valve and hose locks, which are cumbersome to install and remove, inconvenient to operate, and time-consuming. Furthermore, these locks lack sufficient security, are easily misoperated or illegally opened, and have low reliability. Utility Model Content
[0003] To address the problems in existing technologies, this utility model provides a quick-connect plug-type tag locking tool to solve the problems of cumbersome installation and disassembly, inconvenient operation, and susceptibility to misoperation or illegal opening of existing safety locks.
[0004] The technical solution of this utility model is as follows:
[0005] A tag-locking device for quick-connect connectors, the tag-locking device comprising a plug and a lock body;
[0006] The plug component includes a grooved plug, an I-shaped column, and a tail disc. One end of the I-shaped column is connected to the tail disc, and the other end of the I-shaped column is connected to the grooved plug. A semi-circular groove is provided on the outer wall of the I-shaped column.
[0007] The lock body has a tail hole at its tail end and an inner hole at its head end. The sidewalls of the lock body are symmetrically provided with padlock holes for padlocks to pass through, offset from the radial center line.
[0008] In one possible implementation, the lock body has a hollow cavity inside.
[0009] In one possible implementation, the inner circular hole at the head and the circular hole at the tail are connected by a hollow cavity in the lock body.
[0010] In one possible implementation, the padlock hole of the lock body and the semi-circular groove of the plug are used in conjunction.
[0011] In one possible implementation, the lock beam of the padlock passes sequentially through a padlock hole on one side of the lock body, a semi-circular groove on the I-shaped post, and a padlock hole on the other side that is symmetrically arranged with respect to the padlock hole on one side of the lock body.
[0012] In one possible implementation, the grooved plug of the plug member passes sequentially through the tail hole, the hollow cavity, and the head inner hole of the lock body member.
[0013] In one possible implementation, the tail hole of the lock body fits into the outer wall of the semicircular groove of the I-shaped post and is in contact with the tail disc of the plug.
[0014] In one possible implementation, the outer periphery of the lock body head is a conical structure.
[0015] In one possible implementation, the grooved plug is cylindrical, and the front end of the grooved plug is provided with an annular groove.
[0016] In one possible implementation, the plug and lock body are made of high-strength, corrosion-resistant material.
[0017] This utility model discloses a quick-connect tag-locking device, comprising a plug and a lock body. The plug includes a grooved plug, an I-shaped post, and a tail disc. One end of the I-shaped post is connected to the tail disc, and the other end is connected to the grooved plug. A semi-circular groove is provided on the outer wall of the I-shaped post. The lock body has a tail hole at its tail end and an inner hole at its head. Padlock holes for padlocks to pass through are symmetrically arranged on the side walls of the lock body, offset from the radial center line. This invention solves the problems of cumbersome installation and disassembly, inconvenient operation, and susceptibility to misoperation or illegal opening of existing security locks, achieving quick and convenient installation and disassembly, greatly improving work efficiency. It also offers high security, effectively preventing misoperation and illegal opening, and a compact structure for easy carrying and use. Attached Figure Description
[0018] Figure 1 This diagram shows the structure of a tag-locking device for a quick-connect connector according to an embodiment of the present invention;
[0019] Figure 2 A plan view of a tag-locking device for a quick-connect connector according to an embodiment of the present invention is shown;
[0020] Figure 3 An embodiment of the present invention is shown. Figure 2 AA section view;
[0021] Figure 4 A schematic diagram of the plug structure according to an embodiment of the present invention is shown;
[0022] Figure 5 This diagram shows a rear-end view of the lock body component according to an embodiment of the present invention.
[0023] Figure 6 A schematic diagram of the front end of a lock body component according to an embodiment of the present invention is shown.
[0024] In the figure: plug 1, I-shaped post 101, semi-circular groove 102, tail disc 103, grooved plug 104, annular groove 105, lock body 2, tail hole 201, padlock hole 202, head inner hole 203, through hole 204, baffle 205. Detailed Implementation
[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] Figure 1 and Figure 2 The structural diagram and plan view of the tag-locking device of the quick-connect connector according to an embodiment of the present invention are shown respectively. Figure 3 An embodiment of the present invention is shown. Figure 2 AA sectional view.
[0027] like Figure 1-3 As shown, the tag-locking device can include a plug 1 and a lock body 2, which work together to lock and unlock quick-connect fittings. This tag-locking device can be used for quick-connect fittings of pneumatic valves, and of course, for other quick-connect fittings as well; no limitations are made here. Furthermore, different sizes of plugs and lock bodies can be designed according to different specifications of pneumatic valve quick-connect fittings to ensure good compatibility between the tag-locking device and the quick-connect fitting.
[0028] Among them, the plug part 1 and the lock body part 2 can be made of high-strength anti-corrosion materials, such as stainless steel, aluminum alloy, polytetrafluoroethylene, etc. There are no restrictions here. Using high-strength anti-corrosion materials can ensure the strength of the tag lock and increase its durability.
[0029] Figure 4 A schematic diagram of the plug structure according to an embodiment of the present invention is shown.
[0030] like Figure 4As shown, the plug 1 may include an I-shaped post 101, a grooved plug 104, and a tail disc 103. The tail disc 103 is the tail end of the entire tag-lock device and is used to disassemble the tag-lock device and remove the plug 1. One end of the I-shaped post 101 is connected to the tail disc 103, and the other end is connected to the grooved plug 104. A semi-circular groove 102 is provided on its outer wall. The I-shaped post 101 and the tail disc 103 are vertically connected, meaning the I-shaped post 101 is vertically positioned in the middle of the tail disc 103. However, the I-shaped post 101 can also be vertically positioned in other locations on the tail disc 103 as needed; this is not limited here.
[0031] In one example, the grooved plug 104 is cylindrical with an annular groove 105 at its front end. By providing the grooved plug 104, the plug 1 can be easily inserted into the quick-connect fitting of the pneumatic valve and is not easy to fall off.
[0032] Figure 5 and Figure 6 The diagrams show the rear and front views of the lock body component according to an embodiment of the present invention.
[0033] like Figure 5-6 As shown, the lock body 2 has a tail hole 201 at its tail end and an inner hole 203 at its head. A pair of padlock holes 202 are symmetrically arranged on the side wall, offset from the radial center line, for the padlock to pass through. The head of the lock body 2 has a conical outer perimeter, allowing for easy installation in smaller pneumatic valve spaces. The locking tool can be easily removed by operating the lock body 2.
[0034] The interior of the lock body 2 is a hollow cavity, through which the tail circular hole 201 and the head inner circular hole 203 can communicate. The head inner circular hole 201 can seal the air hose disassembly lever of the pneumatic valve quick-connect connector, preventing unauthorized unlocking of the air hose. In one example, a baffle 205 can also be provided between the head inner circular hole 203 and the tail circular hole 201 within the internal cavity of the lock body. The baffle 205 has a through hole 204, through which the head inner circular hole 203 and the tail circular hole 201 can communicate.
[0035] In one example, the padlock hole 202 of the lock body 2 and the semicircular groove 102 of the plug 1 are used in conjunction. For example, the lock beam of the padlock passes sequentially through the padlock hole 202 on one side of the lock body 2, the semicircular groove 102 on the I-shaped post 101, and the padlock hole 202 on the other side, which is symmetrically arranged with the padlock hole 202 on the other side of the lock body 2. By using the padlock hole 202 of the lock body 2 and the semicircular groove 102 of the plug 1 in conjunction, when the padlock is installed, the circular hole 201 at the tail of the lock body 2 can be fitted onto the outer circular wall of the semicircular groove 102 of the I-shaped post 101 of the plug 1 and fit together with the circular disc at the tail of the plug. By using the padlock hole 202 and the semicircular groove 102 in conjunction, the lock body 2 can be rotated freely, making the operating range of the tag lock large and easy to operate.
[0036] In one example, the grooved plug 104 of the plug 1 passes sequentially through the tail hole 201, the hollow cavity, and the head inner hole 201 of the lock body 2. For example, when locking, i.e., when it is necessary to lock the pneumatic valve quick-connect plug, the grooved plug 104 of the plug 1 is inserted into the lock body 2 through the tail hole 201, the hollow cavity, and the head inner hole 201. At this time, one end of the grooved plug 104 is located in the through hole 204, the other end extends to the outside of the head inner hole 203, and the rest is located in the head inner hole 203. Through reasonable layout, the structure is compact, easy to carry and use. After the grooved plug 104 is inserted into the lock body 2, it is aligned with the quick-connect connector of the gas valve and fully inserted. Then, the padlock is passed through the padlock hole and locked. In this way, the grooved plug 104 of the plug 1 is partially inserted into the hole of the quick-connect connector, so that the entire tag-locking lock is firmly fixed to the pneumatic valve quick-connect connector. To unlock, open and remove the padlock, press and push the lock body 2 towards the pneumatic valve quick-connect fitting, and pull the plug 1 out of the quick-connect fitting to complete the unlocking process.
[0037] This utility model discloses a quick-connect tag-locking device, comprising a plug and a lock body. The plug includes a grooved plug, an I-shaped post, and a tail disc. One end of the I-shaped post is connected to the tail disc, and the other end is connected to the grooved plug. A semi-circular groove is provided on the outer wall of the I-shaped post. The lock body has a tail hole at its tail end and an inner hole at its head. Padlock holes for padlocks to pass through are symmetrically arranged on the side walls of the lock body, offset from the radial center line. This invention solves the problems of cumbersome installation and disassembly, inconvenient operation, and susceptibility to accidental operation or illegal opening of existing security locks.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 quick-connect connector tag-locking device, characterized in that, The tag-locking device includes a plug and a lock body; The plug component includes a grooved plug, an I-shaped column, and a tail disc. One end of the I-shaped column is connected to the tail disc, and the other end of the I-shaped column is connected to the grooved plug. A semi-circular groove is provided on the outer wall of the I-shaped column. The lock body has a tail hole at its tail end and an inner hole at its head end. The sidewalls of the lock body are symmetrically provided with padlock holes for padlocks to pass through, offset from the radial center line.
2. The tag-locking device for the quick-connect connector according to claim 1, characterized in that, The lock body has a hollow cavity inside.
3. The tag-locking device according to claim 2, characterized in that, The inner circular hole at the head and the circular hole at the tail are connected by the hollow cavity of the lock body.
4. The tag-locking device according to claim 1, characterized in that, The padlock hole of the lock body and the semi-circular groove of the plug are used together.
5. The tag-locking device according to claim 4, characterized in that, The lock beam of the padlock passes sequentially through the padlock hole on one side of the lock body, the semi-circular groove on the I-shaped post, and the padlock hole on the other side, which is symmetrically arranged with respect to the padlock hole on one side of the lock body.
6. The tag-locking device according to claim 4, characterized in that, The grooved plug of the plug component passes sequentially through the tail hole, the hollow cavity, and the head inner hole of the lock body component.
7. The tag-locking device according to claim 4, characterized in that, The tail hole of the lock body fits into the outer wall of the semi-circular groove of the I-shaped post and is in contact with the tail disc of the plug.
8. The tag-locking device according to claim 1, characterized in that, The head of the lock body has a conical structure.
9. The tag-locking device according to claim 1, characterized in that, The grooved plug is cylindrical, and an annular groove is provided at the front end of the grooved plug.
10. The tag-locking device according to claim 1, characterized in that, The plug and lock body are made of high-strength corrosion-resistant materials.