Mining explosion-proof switch safety protection lock

Abstract

The utility model discloses a mining explosion-proof switch safety protection lock which comprises a sleeve, a limiting rod and a padlock, the sleeve is sleeved outside a handle of an explosion-proof switch, a connecting assembly is fixedly arranged on the side wall of the sleeve and movably connected with one end of the limiting rod, a first lock nose is arranged at the position, close to the middle, of the outer wall of the limiting rod, and a second lock nose is arranged at the position, close to the middle, of the limiting rod. And the padlock simultaneously passes through the first lock nose and the second lock nose on the explosion-proof switch panel so as to lock the positions of the sleeve and the limiting rod. According to the utility model, the position of the explosion-proof switch handle is limited through the sleeve and the limiting rod, and the position of the limiting rod is locked through the padlock, so that the handle cannot be wrenched, a professional lockset is not needed, the cost is reduced, the management and the use are convenient, and the problems that the existing explosion-proof switch handle is not provided with a lock hole, or the position and the size of the lock hole are not standard and the like are solved; and a worker can conveniently implement a'locking 'task at any time, so that potential safety hazards are eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine lock, especially relates to a mine explosion -proof switch safety protection lock. BACKGROUND

[0002] In the coal industry, safety prevention has been the first thing of each big coal enterprise, and neglecting safety is neglecting everything, and safe production is the guarantee of the development and survival of an enterprise, and the safety of coal mine electricity is more difficult, and the industry usually adopts the explosion -proof switch to control the switch and start -stop of electrical equipment.

[0003] In the coal mine safety regulations, the following provisions are made for the stop and power transmission: when maintaining electrical equipment or connecting other equipment in series or parallel on the electrical equipment or increasing or decreasing the equipment and the number of cables, the on -site workers carry out the operation according to the principle of the power switch of the upper level, the hanging plate lock, the special person care, who stops the power and who transmits the power. The work of "locking" seems simple, but it is not implemented and not in place, and the main reasons are three points:

[0004] One, most manufacturers do not reserve the locking position on the handle of the explosion -proof switch, resulting in that the locking is not convenient in the later use;

[0005] Two, although the locking position is reserved by individual explosion -proof switch manufacturers, the position is not suitable, or the locking hole diameter is not suitable, resulting in that the locking cannot be carried out;

[0006] Three, the explosion -proof switch manufacturers usually do not provide special locks, and the locks on the market are not standardized, which is difficult to meet the explosion -proof requirements.

[0007] In summary, the locking behavior of the explosion -proof switch needs to be improved. INVENTION CONTENT

[0008] In order to solve the above technical problems, the utility model discloses a mine explosion -proof switch safety protection lock, including sleeve, limit rod and padlock, the sleeve is covered in the handle outside of explosion -proof switch, the sleeve lateral wall is fixed with connecting component, the connecting component is movably connected with one end of limit rod, the limit rod outer wall is equipped with first lock nose near the middle, the padlock passes through first lock nose and second lock nose on the explosion -proof switch panel simultaneously, so as to lock the position of sleeve and limit rod.

[0009] Further, the connecting component includes a ball seat, a ball head and a first nut, the ball seat is fixedly arranged on the outer wall of the sleeve, the ball head is rotatably arranged in the ball seat, the outer side of the ball seat is provided with a movable groove, the ball head passes through the movable groove and is fixedly connected with the first nut through a connecting rod, and one end of the limit rod is detachably connected with the first nut through external threads.

[0010] Furthermore, the first lock nose is provided with a first lock hole, the second lock nose is provided with a second lock hole and a third lock hole respectively, the padlock passes through the overlapping first lock hole and second lock hole simultaneously, and the limiting rod passes through the third lock hole.

[0011] Furthermore, a second nut is provided at the other end of the limiting rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model uses a sleeve and a limiting rod to restrict the position of the explosion-proof switch handle, and uses a padlock to lock the position of the limiting rod, making the handle unable to be moved. Moreover, the electrical equipment can be safely locked using ordinary padlocks available on the market, without the need for professional locks. This reduces costs and facilitates management and use. It solves the problems of existing explosion-proof switch handles not having pre-drilled lock holes, or lock hole positions and sizes being non-standard, making it easier for staff to always carry out the "locking" task, thereby eliminating safety hazards. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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] Fig. 1 This is a front view of the overall structure of this utility model;

[0016] Fig. 2 This is a partial structural side view of the present invention.

[0017] Figure label:

[0018] 1-Sleeve, 2-Limiting rod, 21-Second nut, 22-First lock lug, 23-First lock hole, 3-Padlock, 4-Handle, 5-Ball seat, 51-Modible groove, 6-Ball head, 61-Connecting rod, 7-First nut, 8-Explosion-proof switch panel, 9-Second lock lug, 91-Second lock hole, 92-Third lock hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0022] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. 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 a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figs. 1-2 As shown, the safety protection lock for the mine explosion-proof switch in this embodiment includes a sleeve 1, a limiting rod 2, and a padlock 3. The sleeve 1 adopts a cylindrical structure and can be sleeved on the outside of the handle 4 of the explosion-proof switch. A connecting component is fixedly provided on the side wall of the sleeve 1. The connecting component is movably connected to one end of the limiting rod 2. A second nut 21 is provided on the other end of the limiting rod 2, which facilitates the manual or tool-assisted rotation of the limiting rod 2.

[0024] The connecting assembly includes a ball seat 5, a ball head 6, and a first nut 7. The ball seat 5 is fixedly mounted on the outer wall of the sleeve 1, and the ball head 6 is rotatably mounted inside the ball seat 5. The outer side of the ball seat 5 is provided with a movable groove 51. The ball head 6 passes through the movable groove 51 via a connecting rod 61 and is fixedly connected to the first nut 7. One end of the limiting rod 2 is detachably connected to the first nut 7 via an external thread. The movable engagement between the ball head 6 and the ball seat 5 can adapt to different orientations or tilt angles of the handle 4, thereby expanding the application scenarios.

[0025] The outer wall of the limiting rod 2 is provided with a first lock lug 22 near the middle. The padlock 3 passes through the first lock lug 22 and the second lock lug 9 on the explosion-proof switch panel 8, thereby locking the position of the sleeve 1 and the limiting rod 2.

[0026] The first lock nose 22 is provided with a first lock hole 23, and the second lock nose 9 is provided with a second lock hole 91 and a third lock hole 92 respectively. The padlock 3 passes through the overlapping first lock hole 23 and second lock hole 91 at the same time, and the limiting rod 2 passes through the third lock hole 92.

[0027] When padlock 3 is locked, the lateral position of limit rod 2 is locked. When handle 4 is pulled to close the circuit, handle 4 will be restricted by sleeve 1 and limit rod 2, making it impossible to pull, thereby ensuring that the electrical equipment will not be accidentally started.

[0028] When it is necessary to start the electrical equipment, open and remove the padlock 3, rotate the limit rod 2 to unscrew it from the first nut 7, and then remove the sleeve 1 from the handle 4. At this time, the circuit can be closed normally.

[0029] This utility model uses a sleeve 1 and a limiting rod 2 to restrict the position of the explosion-proof switch handle 4, and uses a padlock 3 to lock the position of the limiting rod 2, making the handle 4 unable to be moved. Furthermore, the electrical equipment can be safely locked using a common padlock 3 available on the market, without the need for professional locks. The padlock key is guarded by a designated person to ensure that the padlock 3 cannot be opened at will. This reduces costs and facilitates management and use. It solves the problems of existing explosion-proof switch handles not having a pre-reserved lock hole, or the lock hole position and size being non-standard, making it convenient for staff to always carry out the "locking" task, thereby eliminating safety hazards.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A safety protection lock for an explosion-proof switch used in mining, characterized in that: The device includes a sleeve, a limiting rod, and a padlock. The sleeve is fitted over the handle of the explosion-proof switch. A connecting component is fixedly provided on the side wall of the sleeve. The connecting component is movably connected to one end of the limiting rod. A first lock lug is provided near the middle of the outer wall of the limiting rod. The padlock passes through both the first lock lug and the second lock lug on the explosion-proof switch panel, thereby locking the position of the sleeve and the limiting rod.

2. The safety protection lock for mine explosion-proof switches according to claim 1, characterized in that: The connecting assembly includes a ball seat, a ball head, and a first nut. The ball seat is fixedly mounted on the outer wall of the sleeve, and the ball head is rotatably mounted inside the ball seat. The outer side of the ball seat is provided with a movable groove. The ball head passes through the movable groove via a connecting rod and is fixedly connected to the first nut. One end of the limiting rod is detachably connected to the first nut via an external thread.

3. The safety protection lock for mine explosion-proof switches according to claim 1, characterized in that: The first lock nose is provided with a first lock hole, the second lock nose is provided with a second lock hole and a third lock hole respectively, the padlock passes through the overlapping first lock hole and second lock hole at the same time, and the limiting rod passes through the third lock hole.

4. The safety protection lock for mine explosion-proof switches according to claim 1, characterized in that: The other end of the limiting rod is provided with a second nut.

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