Quick-opening door lock of access door

Abstract

The invention provides a quick-opening door lock of an access door, and relates to the technical field of cruise ship access doors. The access door quick-opening door lock comprises a door lock body and a locking assembly. The door lock body is fixedly connected to the mounting part, and a storage cavity penetrating through the door lock body is formed in the door lock body in the Z direction. The locking assembly comprises a spring bolt, a connecting piece, a buckle and a reset piece, the connecting piece is rotationally arranged at the upper end of the containing cavity, the spring bolt is movably arranged at the lower end of the containing cavity, a locking part of the spring bolt is exposed to the lower portion of the containing cavity, the spring bolt is in transmission connection with the connecting piece, the reset piece is arranged between the spring bolt and the inner wall of the containing cavity, and the buckle and the locking part are oppositely arranged. The locking part has a locking state and an opening state, and when the locking part is in the locking state, the locking part and the buckle are locked; and the connecting piece is moved in the direction close to the buckle, so that the locking part is converted from the locking state to the opening state. According to the lock, the locking effect is guaranteed, meanwhile, due to the fact that the structure is simple, quick unlocking can be achieved, and the convenience of unlocking and locking is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cruise ship inspection doors, and in particular to a quick-opening door lock for the inspection door. Background Art

[0002] The inspection doors on cruise ships generally have two ways of opening: quick opening and locking. The quick opening uses a knob-type door lock, which can be opened by rotating clockwise or counterclockwise. Since there is no fixed opening direction, the locking effect is not good. If you directly use an ordinary door lock to lock, although the locking effect can be guaranteed, it cannot be opened quickly, so the convenience of opening and closing the lock is poor. Summary of the invention

[0003] The object of the present invention is to provide a quick-opening door lock for an inspection door, which ensures a locking effect and, due to its simple structure and quick opening, improves the convenience of opening and closing the lock.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] Inspection door quick-release locks, used in cruise ships, including:

[0006] A door lock body, fixedly connected to a mounting portion on the inspection door of the cruise ship, and the door lock body is provided with a storage cavity penetrating the door lock body along the Z direction;

[0007] A locking assembly, comprising a locking tongue, a connecting piece, a buckle and a reset piece, wherein the connecting piece is rotatably arranged at the upper end of the storage cavity, the locking tongue is movably arranged at the lower end of the storage cavity, the locking portion of the locking tongue is exposed below the storage cavity, and the locking tongue is transmission-connected to the connecting piece, the reset piece is arranged between the locking tongue and the inner wall of the storage cavity, the buckle is arranged opposite to the locking portion, and is arranged on the wall of the cruise ship corresponding to the mounting portion, the locking portion has a locked state and an open state, and when the locking portion is in the locked state, the locking portion is locked with the buckle;

[0008] The connecting member is moved in a direction close to the buckle, so that the locking portion is converted from a locked state to an open state.

[0009] As a further technical solution, the locking assembly further includes an auxiliary plate, and the connecting member includes a first connecting portion and a second connecting portion;

[0010] The auxiliary plate is located in the storage cavity and is arranged between the locking tongue and the connecting member. A connecting through hole is arranged on the auxiliary plate. The first end of the first connecting part is vertically fixedly connected to the first end of the second connecting part. The second end of the second connecting part passes through the connecting through hole and is transmission-connected to the locking tongue. When the locking part is in a locked state, the abutting surface on the first connecting part abuts against the auxiliary plate.

[0011] As a further technical solution, an auxiliary abutting block is provided on the upper end surface of the auxiliary plate, and when the locking portion is in a locked state, the abutting surface abuts against the auxiliary abutting block.

[0012] As a further technical solution, a grabbing hole is provided at the second end of the first connecting portion so that the first connecting portion forms a pulling ring.

[0013] As a further technical solution, along the direction away from the abutting surface, the side wall of the grabbing hole is inclined toward the direction close to the middle of the grabbing hole.

[0014] As a further technical solution, a slide groove is provided on the locking tongue, the slide groove extends along the Z direction, and the second end of the second connecting portion can be slidably constrained in the slide groove.

[0015] As a further technical solution, the locking portion is provided with a locking surface, and in the direction from the buckle to the locking portion, the locking surface is inclined toward a direction approaching the connecting member.

[0016] As a further technical solution, a locking auxiliary piece is movably provided on the locking surface, and when the locking portion is in a locked state, the locking auxiliary piece can limit the locking portion from being disengaged from the buckle.

[0017] As a further technical solution, the reset member is configured as a compression spring, and the locking assembly further includes a guide cylinder fixedly disposed in the storage cavity, the guide cylinder extends along the expansion and contraction direction of the compression spring and is sleeved on the compression spring.

[0018] As a further technical solution, the inspection door quick-opening door lock also includes a connecting plate, which is provided with a connecting through hole. When the door lock body is fixedly connected to the mounting part, the connecting plate is fixedly connected to the door lock body through the connecting through hole.

[0019] Compared with the prior art, the quick-opening door lock for the inspection door provided by the present invention has the following technical advantages:

[0020] Since the locking part of the lock tongue is exposed at the lower end of the storage cavity, and the lock tongue is connected to the connecting piece by transmission, the reset piece is arranged between the lock tongue and the inner wall of the storage cavity, and the buckle is arranged relative to the locking part. When the locking part is in the locked state, the locking part and the buckle are locked. Therefore, when it is necessary to unlock, the connecting piece is moved in the direction close to the buckle, so that the connecting piece rotates to drive the lock tongue to move in the direction away from the buckle, thereby achieving unlocking; in the process of the lock tongue moving in the direction away from the buckle, the reset piece is deformed by force. When the connecting piece is moved until the lock tongue is disengaged from the buckle, so that the locking part is converted from the locked state to the open state, the connecting piece is no longer moved. At this time, the reset piece is no longer subjected to force and begins to rebound autonomously, thereby driving the lock tongue and the connecting piece to return to the original state, so as to facilitate the next locking. The quick-opening door lock for the inspection door consists only of a door lock body and a locking assembly, with a simple structure. During the entire process, quick opening can be achieved by moving the connecting parts, thereby improving the convenience of opening and closing the lock. At the same time, only by moving the connecting parts along a specific direction can the locked state be converted to an open state, which can prevent the door lock from being opened due to forces other than human power, thereby ensuring the locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the inspection door quick-opening lock in a locked state provided by an embodiment of the present invention;

[0023] Figure 2 is a cross-sectional view of an inspection door quick-opening lock provided by an embodiment of the present invention in an open state;

[0024] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0025] Figure 4 It is an exploded view of the quick-opening door lock for the inspection door provided by an embodiment of the present invention.

[0026] In the figure:

[0027] 10. Wall;

[0028] 100. Door lock body;

[0029] 200, locking assembly; 210, locking tongue; 211, locking portion; 2111, locking surface; 2112, locking auxiliary member; 2213, auxiliary spring; 2214, auxiliary groove; 220, connecting member; 221, first connecting portion; 2211, abutting surface; 2212, grabbing hole; 222, second connecting portion; 230, buckle; 240, reset member; 250, auxiliary plate; 251, auxiliary abutting block;

[0030] 300, connecting plate; 310, connecting through hole. DETAILED DESCRIPTION

[0031] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0032] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0033] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0034] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0035] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0036] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0037] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0038] Combination Figures 1 to 4As shown, the inspection door quick-opening door lock (hereinafter referred to as the door lock) provided in this embodiment is applied to cruise ships. The use of the door lock can ensure the locking effect. At the same time, due to its simple structure and quick opening, the convenience of opening and closing the lock can be improved. Specifically, the door lock includes a door lock body 100 and a locking assembly 200: the door lock body 100 is fixedly connected to the mounting portion, and the door lock body 100 is provided with a storage cavity penetrating the door lock body 100 along the Z direction; the locking assembly 200 includes a lock tongue 210, a connecting member 220, a buckle 230 and a reset member 240, the connecting member 220 is rotatably arranged at the upper end of the storage cavity, the lock tongue 210 is movably arranged at the bottom of the storage cavity, the locking portion 211 of the lock tongue 210 is exposed at the lower end of the storage cavity, and the lock tongue 210 is transmission connected to the connecting member 220, the reset member 240 is arranged between the locking tongue 210 and the inner wall of the storage cavity, the buckle 230 is arranged opposite to the locking portion 211, and is arranged on the wall 10 of the cruise ship corresponding to the mounting portion, and the locking portion 211 has a locked state and an open state. When the locking portion 211 is in the locked state, the locking portion 211 is locked with the buckle 230; move the connecting member 220 in the direction close to the buckle 230 to convert the locking portion 211 from the locked state to the open state.

[0039] Since the locking portion 211 of the lock tongue 210 is exposed at the lower end of the storage cavity, and the lock tongue 210 is transmission-connected to the connecting member 220, the reset member 240 is disposed between the lock tongue 210 and the inner wall of the storage cavity, and the buckle 230 is disposed opposite to the locking portion 211, when the locking portion 211 is in a locked state, the locking portion 211 is locked with the buckle 230. Therefore, when unlocking is required, the connecting member 220 is moved toward the buckle 230 to rotate the connecting member 220, so as to drive the lock tongue 210 to move away from the buckle 230, thereby unlocking; in the process of the lock tongue 210 moving away from the buckle 230, the reset member 240 is deformed by force. When the connecting member 220 is moved until the lock tongue 210 is disengaged from the buckle 230, and the locking portion 211 is converted from the locked state to the open state, the connecting member 220 is no longer moved. At this time, the reset member 240 is no longer subjected to force and begins to rebound autonomously, thereby driving the lock tongue 210 and the connecting member 220 to return to the original state for the next locking. The door lock is composed of only the door lock body 100 and the locking assembly 200, and has a simple structure. During the whole process, quick opening can be achieved by moving the connecting member 220, thereby improving the convenience of opening and closing the lock; at the same time, only by moving the connecting member 220 in a specific direction can the locked state be converted to the open state, which can prevent the door lock from being opened by other forces other than human power, thereby ensuring the locking effect.

[0040] Preferably, the locking assembly 200 also includes an auxiliary plate 250, and the connecting member 220 includes a first connecting portion 221 and a second connecting portion 222; the auxiliary plate 250 is located in the storage cavity and is arranged between the locking tongue 210 and the connecting member 220, and a connecting through hole is provided on the auxiliary plate 250, and the first end of the first connecting portion 221 is vertically fixedly connected to the first end of the second connecting portion 222, and the second end of the second connecting portion 222 is transmission-connected to the locking tongue 210 through the connecting through hole, and when the locking portion 211 is in a locked state, the abutting surface 2211 on the first connecting portion 221 abuts against the auxiliary plate 250.

[0041] Combination Figures 1 to 4 As shown, in the present embodiment, the connecting member 220 is configured as an L-shaped member, and the connection point of the first connecting portion 221 and the second connecting portion 222 is rotatably disposed in the storage cavity through a connecting shaft; when the locking portion 211 and the buckle 230 are locked, the first connecting portion 221 is located in the storage cavity. Therefore, when the lock needs to be unlocked, the operator needs to insert a finger into the storage cavity to pull the first connecting portion 221 around the connecting axis to move in a direction close to the buckle 230, thereby driving the locking tongue 210 to move in a direction away from the buckle 230, so that the locking tongue 210 is disengaged from the buckle 230. During the whole process, the situation in which the locking portion 211 and the buckle 230 are disengaged due to accidental touching of the first connecting portion 221 can be avoided, so as to further improve the locking effect. The connecting through hole corresponding to the connecting shaft is arranged above the auxiliary plate 250, thereby ensuring the rotation effect of the connecting member 220. At the same time, the auxiliary plate 250 arranged between the locking tongue 210 and the connecting member 220 can limit the rotation angle of the connecting member 220. When the locking portion 211 is locked with the buckle 230, the abutting surface 2211 on the first connecting portion 221 abuts against the auxiliary plate 250, thereby avoiding the situation where the locking tongue 210 and the buckle 230 are locked due to excessive rotation of the connecting member 220.

[0042] Preferably, an auxiliary pressing block 251 is disposed on the upper end surface of the auxiliary plate 250 , and when the locking portion 211 is in a locked state, the abutting surface 2211 abuts against the auxiliary pressing block 251 .

[0043] Specific combination Figure 1 and Figure 2 As shown, by providing the auxiliary clamping block 251, on the one hand, the rotation angle of the connecting member 220 is limited to avoid the locking of the locking tongue 210 and the buckle 230; on the other hand, an avoidance gap is ensured between the first connecting part 221 and the auxiliary plate 250 to avoid the abutting surface 2211 directly fitting against the upper end surface of the auxiliary plate 250, thereby improving the convenience when pulling the first connecting part 221.

[0044] In order to further improve the convenience of pulling the first connection part 221, in this embodiment, a gripping hole 2212 is provided at the second end of the first connection part 221, so that the first connection part 221 forms a pulling ring. When unlocking is required, the operator can pull the first connection part 221 by inserting a finger into the pulling ring, so as to improve the pulling effect and the convenience of pulling.

[0045] Furthermore, along the direction away from the abutting surface 2211, the side wall of the grabbing hole 2212 is inclined toward the middle of the grabbing hole 2212. The inclined side wall can improve the convenience of the operator's hand reaching into the pulling ring and pulling the first connecting part 221 during the unlocking process, thereby further ensuring the quick opening effect of the door lock.

[0046] Preferably, a slide groove (not shown in the figure) is provided on the locking tongue 210 , the slide groove extends along the Z direction, and the second end of the second connecting portion 222 can be slidably constrained in the slide groove.

[0047] Specifically, the width of the slide groove gradually decreases from the bottom wall of the slide groove to the direction of the slide groove opening, that is, along the Z direction, the cross-sectional shape of the slide groove is set to be a trapezoid, a dovetail shape or a "⊥" shape, and the second end of the second connecting portion 222 is set corresponding to the slide groove and is slidably limited and connected to the slide groove. In this way, when the connecting member 220 is pulled, it is ensured that the second connecting portion 222 can drive the lock tongue 210 to move, and at the same time, in the process of the second connecting portion 222 driving the lock tongue 210 to move, the second connecting portion 222 is prevented from being separated from the lock tongue 210.

[0048] In order to further enhance the locking effect between the locking portion 211 and the buckle 230 , in this embodiment, the locking portion 211 is provided with a locking surface 2111 , and in the direction from the buckle 230 to the locking portion 211 , the locking surface 2111 is inclined toward the direction close to the connecting member 220 .

[0049] Furthermore, a locking auxiliary piece 2112 is movably provided on the locking surface 2111 , and when the locking portion 211 is in a locked state, the locking auxiliary piece 2112 can restrict the locking portion 211 from being separated from the buckle 230 .

[0050] Combination Figure 2 and Figure 3As shown, in this embodiment, the locking portion 211 is provided with an auxiliary groove 2214 whose depth extends along the Z direction, the opening of the auxiliary groove 2214 is provided at the locking surface 2111, an auxiliary spring 2213 is provided on the bottom wall of the auxiliary groove 2214, and a locking auxiliary piece 2112 is connected to one end of the auxiliary spring 2213 away from the bottom wall of the auxiliary groove 2214, and the auxiliary groove 2214 is provided on the side of the locking portion 211 close to the buckle 230. Therefore, in the process of locking the lock tongue 210 and the buckle 230, the locking auxiliary piece 2112 is squeezed into the auxiliary groove 2214, and the auxiliary spring 2213 is compressed by the squeezing force; after the lock tongue 210 is locked with the buckle 230, the auxiliary spring 2213 is no longer squeezed and begins to stretch autonomously, thereby pushing the locking auxiliary piece 2112 to protrude from the locking surface 2111, thereby reducing the probability of the lock tongue 210 and the buckle 230 being separated autonomously, so as to further improve the locking effect.

[0051] In some other embodiments, the locking auxiliary component 2112 is directly set as a bent spring piece. After the spring piece is set on the locking surface 2111, the middle part of the spring piece is bent in the direction away from the locking surface 2111. During the locking process of the lock tongue 210 and the buckle 230, the spring piece is bent in the direction close to the locking surface 2111. After the lock tongue 210 is locked with the buckle 230, the spring piece rebounds autonomously.

[0052] Preferably, the reset member 240 is configured as a compression spring, and the locking assembly 200 further includes a guide cylinder (not shown in the figure) fixedly disposed in the storage cavity, the guide cylinder extends along the expansion and contraction direction of the compression spring and is sleeved on the compression spring.

[0053] Combination Figure 1 and Figure 2As shown, in this embodiment, the reset member 240 is configured as a compression spring and is arranged on the side of the lock tongue 210 away from the buckle 230. When the connecting member 220 is pulled in the direction close to the buckle 230, the lock tongue 210 is driven to move in the direction away from the buckle 230 and is separated from the buckle 230, and the compression spring is compressed by the extrusion force; when the door lock is in the open state, the connecting member 220 is no longer pulled, and the compression spring no longer bears the extrusion force and begins to stretch autonomously, and drives the lock tongue 210 to move in the direction close to the buckle 230 until the lock tongue 210 abuts against the inner wall of the storage cavity. When the inspection door needs to be closed, the connecting member 220 can be pulled to lock the lock tongue 210 to the buckle 230; or the inspection door can be directly pushed to make the lock tongue 210 collide with the buckle 230 so that the compression spring is compressed by the force, so that the lock tongue 210 is locked to the buckle 230. Since a guide tube is fixedly arranged in the storage cavity, the guide tube extends along the extension and contraction direction of the compression spring and is sleeved on the compression spring, the guide tube can guide the compression spring to be compressed or extended autonomously along a predetermined route, while preventing the compression spring from tipping over or bending during the compression or autonomous extension process, thereby further ensuring the use effect of the lock tongue 210.

[0054] In some other embodiments, the reset member 240 can also be configured as a tension spring and is disposed on a side of the lock tongue 210 close to the buckle 230. When the connecting member 220 is pulled in a direction close to the buckle 230, the tension spring is stretched; when the door lock is in an open state, the connecting member 220 is no longer pulled, and the tension spring no longer bears the tension and begins to retract autonomously, thereby driving the lock tongue 210 to move to the original position.

[0055] Preferably, the door lock further includes a connecting plate 300 , on which a connecting through hole 310 is provided. When the door lock body 100 is fixedly connected to the mounting portion, the connecting plate 300 is fixedly connected to the door lock body 100 via the connecting through hole 310 .

[0056] In this embodiment, two connecting plates 300 are provided. After the door lock body 100 is installed on the mounting portion, the two connecting plates 300 are fixedly connected to the two ends of the door lock body 100 through connecting through holes 310 respectively, so that the inspection door is located between the two connecting plates 300, thereby improving the connection strength and connection stability of the door lock body 100 installed on the mounting portion, thereby ensuring the use effect of the door lock.

[0057] In addition to being used for inspection doors, the door lock provided in this embodiment can also be used for cabinets, drawers, doors, etc. according to actual needs, which will not be described in detail here.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Inspection door quick-opening lock, used in cruise ships, characterized by: include: A door lock body (100) is fixedly connected to a mounting portion on the inspection door of the cruise ship, and the door lock body (100) is provided with a storage cavity penetrating the door lock body (100) along the Z direction; A locking assembly (200) comprises a locking tongue (210), a connecting piece (220), a buckle (230) and a reset piece (240), wherein the connecting piece (220) is rotatably arranged at the upper end of the storage cavity, the locking tongue (210) is movably arranged at the lower end of the storage cavity, a locking portion (211) of the locking tongue (210) is exposed below the storage cavity, and the locking tongue (210) is transmission-connected to the connecting piece (220), the reset piece (240) is arranged between the locking tongue (210) and the inner wall of the storage cavity, the buckle (230) is arranged opposite to the locking portion (211), and is arranged on the wall (10) of the cruise ship corresponding to the mounting portion, the locking portion (211) has a locked state and an open state, and when the locking portion (211) is in the locked state, the locking portion (211) is locked with the buckle (230); The connecting member (220) is moved in a direction close to the buckle (230) so that the locking portion (211) is converted from a locked state to an open state.

2. The quick-opening door lock for an inspection door according to claim 1, characterized in that: The locking assembly (200) further comprises an auxiliary plate (250), and the connecting member (220) comprises a first connecting portion (221) and a second connecting portion (222); The auxiliary plate (250) is located in the storage cavity and is arranged between the locking tongue (210) and the connecting member (220). A communicating through hole is arranged on the auxiliary plate (250). The first end of the first connecting portion (221) is vertically fixedly connected to the first end of the second connecting portion (222). The second end of the second connecting portion (222) passes through the communicating through hole and is transmission-connected to the locking tongue (210). When the locking portion (211) is in a locked state, the abutting surface (2211) on the first connecting portion (221) abuts against the auxiliary plate (250).

3. The quick-opening door lock for an inspection door according to claim 2, characterized in that: An auxiliary abutting block (251) is provided on the upper end surface of the auxiliary plate (250); when the locking portion (211) is in a locked state, the abutting surface (2211) abuts against the auxiliary abutting block (251).

4. The quick-opening door lock for an inspection door according to claim 2, characterized in that: The second end of the first connecting portion (221) is provided with a grabbing hole (2212) so that the first connecting portion (221) forms a pulling ring.

5. The quick-opening door lock for an inspection door according to claim 4, characterized in that: Along the direction away from the abutting surface (2211), the side wall of the grabbing hole (2212) is inclined toward the direction close to the middle of the grabbing hole (2212).

6. The quick-opening door lock for an inspection door according to claim 2, characterized in that: The locking tongue (210) is provided with a sliding groove, the sliding groove extending along the Z direction, and the second end of the second connecting portion (222) can be slidably constrained in the sliding groove.

7. The quick-opening door lock for an inspection door according to claim 2, characterized in that: The locking portion (211) is provided with a locking surface (2111), and in a direction from the buckle (230) to the locking portion (211), the locking surface (2111) is inclined in a direction approaching the connecting member (220).

8. The quick-opening door lock for an inspection door according to claim 7, characterized in that: A locking auxiliary component (2112) is movably provided on the locking surface (2111); when the locking portion (211) is in a locked state, the locking auxiliary component (2112) can restrict the locking portion (211) from being disengaged from the buckle (230).

9. The quick-opening door lock for an inspection door according to claim 2, characterized in that: The reset member (240) is configured as a compression spring, and the locking assembly (200) further comprises a guide cylinder fixedly disposed in the storage cavity, the guide cylinder extending along the expansion and contraction direction of the compression spring and sleeved on the compression spring.

10. The quick-opening door lock for an inspection door according to any one of claims 1 to 9, characterized in that: The inspection door quick-opening door lock further comprises a connecting plate (300), on which a connecting through hole (310) is provided. When the door lock body (100) is fixedly connected to the mounting portion, the connecting plate (300) is fixedly connected to the door lock body (100) via the connecting through hole (310).

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