A compression bar type escape lock emergency opening tool

Abstract

The utility model discloses a kind of pressure bar type escape lock emergency opening tools, the pressure bar type escape lock emergency opening tool includes spanner main body and replaceable adapter head, the adapter head is detachably arranged at one end of the spanner main body, the adapter head is equipped with the docking portion for cooperating with lockset operation interface. Through the modularization design of replaceable adapter head, a single spanner main body can be replaced by different specifications of adapter head, and various models and interface shapes of pressure bar type escape lock are adapted, the universalization of tool is realized, the design effectively overcomes the defect that special key management is inconvenient, universal tool is easily damaged lockset and is low in efficiency, significantly improves rescue efficiency, and reduces the maintenance and management cost of tool.

Description

Technical Field

[0001] This utility model relates to the field of escape lock technology, and in particular to an emergency opening tool for a lever-type escape lock. Background Technology

[0002] In public places such as airports, shopping malls, hospitals, and office buildings, push-bar escape locks (also known as push-bar locks or escape push bars) are key equipment for ensuring unobstructed emergency evacuation routes. Their core function is that, under any circumstances (including when the door is deadbolted), pressing down on the door handle allows for instant unlocking and escape via a mechanical linkage mechanism, complying with fire safety regulations.

[0003] Currently, emergency opening tools for lever-type escape locks from the outside mostly rely on general-purpose tools or special keys. General-purpose tools (such as screwdrivers and pry bars) lack specificity and can easily cause permanent damage to the lock, or even jam it and make it unusable. On the other hand, special keys may pose risks of chaotic management, inconvenience in access, or incompatibility with the lock cylinder.

[0004] Furthermore, in emergency situations, external rescuers often struggle to quickly identify the lock model and compatible tools, delaying rescue efforts. Existing technology lacks a dedicated emergency wrench that can quickly and accurately interface with the external operating interface of a lever-type escape lock emergency opening tool, and provide effective operating torque in emergency situations. This utility model's aluminum wrench is designed to solve these problems. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the above-mentioned background technology design and to provide a product with good adaptability.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] An emergency opening tool for a lever-type escape lock includes a wrench body and a replaceable adapter head. The adapter head is detachably disposed at one end of the wrench body and has a mating part for engaging with the lock's operating interface.

[0008] Preferably, the wrench body is provided with a mounting groove for mounting the adapter head, and the sidewall of the mounting groove is provided with a plurality of guide grooves evenly distributed along its circumference.

[0009] Preferably, the adapter head is provided with radially elastically retractable connecting parts distributed along its circumference and closely abutting against the mounting groove, and the adapter head is also provided with a plug inserted into the guide groove.

[0010] Preferably, the inlet of the mounting groove is provided with a guide ramp to guide the connecting part into it.

[0011] Preferably, the outer surface of the adapter head is knurled.

[0012] Preferably, one end face of the wrench body is provided with a receiving cavity, and the receiving cavity is provided with a fixing groove for accommodating the insert block. The internal structure of the fixing groove is set to be tapered, which is used to fix multiple adapter heads.

[0013] Beneficial effects:

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model, through its modular design with interchangeable adapter heads, allows a single wrench body to be adapted to various models and interface shapes of lever-type escape locks by replacing different sizes of adapter heads, thus achieving tool universality. This design effectively overcomes the shortcomings of inconvenient management of dedicated keys, easy damage to locks by universal tools, and low efficiency, significantly improving rescue efficiency and reducing tool maintenance and management costs. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a lever-type escape lock emergency opening tool according to the present invention;

[0017] Figure 2 This is a side cross-sectional view of the emergency opening tool for a lever-type escape lock according to this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of an emergency opening tool for a lever-type escape lock according to this utility model;

[0019] Figure 4 This is an exploded structural diagram of an emergency opening tool for a lever-type escape lock according to the present invention;

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] Reference numerals: 1. Wrench body; 2. Adapter head; 11. Mounting groove; 12. Guide groove; 13. Guide bevel; 14. Receiving cavity; 15. Fixing groove; 21. Connecting part; 22. Connecting part; 23. Insert block; 24. Knurling. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., 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.

[0024] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Reference example Figures 1 to 4 An emergency opening tool for a lever-type escape lock includes a wrench body 1 and a replaceable adapter head 2. The adapter head 2 is detachably disposed at one end of the wrench body 1 and has a mating part 21 for engaging with the lock's operating interface.

[0026] The modular design with interchangeable adapter heads 2 allows a single wrench body 1 to be adapted to various models and interface shapes of lever-type escape locks by replacing the adapter heads 2 with different specifications, thus achieving tool universality. This design effectively overcomes the shortcomings of inconvenient management of dedicated keys, easy damage to locks and low efficiency of universal tools, significantly improving rescue efficiency and reducing tool maintenance and management costs.

[0027] It is worth mentioning that the wrench body 1 is provided with a mounting groove 11 for installing the adapter head 2. The side wall of the mounting groove 11 is provided with a plurality of guide grooves 12 evenly distributed along its circumference. By setting the guide grooves 12 evenly distributed in the circumference within the mounting groove 11, a precise circumferential positioning and error prevention mechanism is provided for the adapter head 2, ensuring that the adapter head 2 and the wrench body 1 can be quickly aligned during installation, avoiding docking failure or structural damage caused by installation angle deviation, and improving the reliability of the connection and operating efficiency.

[0028] It is worth mentioning that the adapter head 2 is provided with a radially elastic telescopic connecting part 22 distributed along its circumference and closely abutting against the mounting groove 11. The adapter head 2 is also provided with a plug 23 inserted into the guide groove 12. This design achieves the quick locking and releasing of the adapter head 2 through the synergistic effect of the radially elastic telescopic connecting part 22 and the plug 23. The connecting part 22 provides a continuous radial preload to ensure a stable connection without shaking, while the plug 23 and the guide groove 12 cooperate to undertake the main torque transmission function.

[0029] It is worth mentioning that the entrance of the mounting groove 11 is provided with a guide ramp 13 to guide the connecting part 22 into it. The guide ramp 13 at the entrance of the mounting groove 11 forms a self-aligning guide structure. This design provides axial guiding force when the connecting part 22 enters the mounting groove 11, so that it can be smoothly compressed and slid into the predetermined position, which greatly reduces the installation difficulty and is especially suitable for emergency environments with insufficient light or limited operating space.

[0030] It is worth mentioning that the outer surface of the adapter head 2 is provided with knurling 24. The knurling 24 on the outer surface of the adapter head 2 increases the friction force for the operator to pull out the adapter head 2.

[0031] It is worth mentioning that one end face of the wrench body 1 is provided with a receiving cavity 14, and the receiving cavity 14 is provided with a fixing groove 15 for accommodating the insert 23. The internal structure of the fixing groove 15 is set as a tapered type to fix multiple adapter heads 2. By integrating the receiving cavity 14 with the tapered fixing groove 15 on the wrench body 1, the multiple spare adapter heads 2 can be compactly and orderly stored. The tapered structure uses the cone surface self-locking principle to firmly fix adapter heads 2 of different sizes and prevent them from shaking or falling off during carrying.

[0032] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A lever-type escape lock emergency opening tool, comprising a wrench body (1) and a replaceable adapter head (2), characterized in that: The adapter (2) is detachably disposed at one end of the wrench body (1), and the adapter (2) is provided with a mating part (21) for engaging with the lock operation interface.

2. The emergency opening tool for the lever-type escape lock according to claim 1, characterized in that: The wrench body (1) is provided with a mounting groove (11) for mounting the adapter head (2), and the sidewall of the mounting groove (11) is provided with a plurality of guide grooves (12) evenly distributed along its circumference.

3. The emergency opening tool for the lever-type escape lock according to claim 2, characterized in that: The adapter (2) is provided with radially elastically extendable connecting parts (22) distributed along its circumference and closely abuts against the mounting groove (11). The adapter (2) is also provided with a plug (23) inserted into the guide groove (12).

4. The emergency opening tool for the lever-type escape lock according to claim 3, characterized in that: The inlet of the mounting groove (11) is provided with a guide ramp (13) for the guide connection part (22) to enter into it.

5. The emergency opening tool for the lever-type escape lock according to claim 1, characterized in that: The outer surface of the adapter (2) is provided with knurling (24).

6. The emergency opening tool for the lever-type escape lock according to claim 3, characterized in that: The wrench body (1) has a receiving cavity (14) on one end face. The receiving cavity (14) has a fixing groove (15) for accommodating the insert (23). The internal structure of the fixing groove (15) is set to be tapered, which is used to fix multiple adapter heads (2).

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