Self-locking bedside lock and self-locking method thereof

Abstract

The invention discloses a self-locking type bedside lock which is matched with a lock catch and comprises a lock seat, a lock hook arranged on the lock seat and a torsion spring arranged on the lock seat and the lock hook at the same time. And the lock hook is fixed on the lock seat through the lock hook rotating shaft and can rotate along the lock hook rotating shaft. The invention further discloses a self-locking method of the self-locking type bedside lock, the torsion spring always applies tension to the lock hook, and a tension line is obtained by drawing a line in the direction of the tension; when the tension wire is positioned above the axis of the lock hook rotating shaft, the self-locking bed head lock is in an unlocked state; and when the tension wire is positioned below the axis of the lock hook rotating shaft, the self-locking bed head lock is in a self-locking state. According to the self-locking type bedside lock and the self-locking method thereof, unlocking can be rapidly completed, the self-locking state can be automatically recovered after function operation is completed, the number of times of manual operation is reduced, the use effect of the product is greatly improved, and the use difficulty and use risk of the product are reduced.

Description

Technical Field

[0001] The present application relates to the field of locks, and in particular to a self-locking bedside lock and a self-locking method thereof. Background Art

[0002] Medical beds are a common type of medical equipment and have been widely used in many medical institutions. With the development of society, people's requirements for medical equipment are gradually increasing, especially when performing emergency treatment on patients, the medical equipment used will have more stringent requirements.

[0003] Among the beds in use, most of them are equipped with locking devices at the headboard, but when these headboards are removed or installed, medical staff are required to unlock or lock the devices first. The operation is cumbersome and time-consuming, which will delay the emergency time, thus making the beds very inconvenient to use.

[0004] When a bed with wheels is used to transport a patient, medical staff will use the headrest to push the bed to transport the patient. At this time, it is required that the headrest will not loosen or even fall off when subjected to force. If the medical staff forgets to lock the headrest, the headrest may fall off when the bed is pushed, causing an accident. Summary of the invention

[0005] In response to the deficiencies in the prior art, the present application provides a self-locking bedside lock and a self-locking method thereof, which can quickly complete the unlocking and can automatically restore the self-locking state after the function is completed, thereby reducing the number of manual operations required, greatly improving the use effect of the product, and reducing the difficulty and risk of using the product.

[0006] A self-locking bedside lock cooperates with a lock buckle, comprising a lock seat, a lock hook arranged on the seat, and a torsion spring arranged on both the lock seat and the lock hook; the lock hook is fixed on the lock seat through a lock hook rotating shaft and can rotate along the lock hook rotating shaft.

[0007] Furthermore, the lock seat is composed of a mounting plate and a vertical plate vertically arranged on the mounting plate; a swing groove is also arranged at a position adjacent to the vertical plate on the mounting plate.

[0008] Preferably, the vertical plate is provided with a limiting groove which passes through the vertical plate from the middle upward, and a seat shaft hole for setting the lock hook shaft is also provided on the vertical plate at a position below the limiting groove, and a seat spring hole matching the torsion spring is provided at the side edge of the vertical plate.

[0009] Preferably, the opening of the limiting groove is a V-shaped guide opening.

[0010] Furthermore, the lock hook is composed of a handle, a lock hook seat arranged on the handle, and a disengagement lock hook head and a limit lock hook head respectively arranged on the left and right sides of the upper end of the lock hook seat.

[0011] Preferably, a hook rotating shaft hole for setting the lock hook rotating shaft is provided at the middle position of the lock hook seat, and a hook spring hole matching with the torsion spring is provided on the side of the lock hook seat.

[0012] Preferably, the lower end of the lock hook seat passes through the swing groove from top to bottom and is fixed on the handle.

[0013] Preferably, the inner side edge of the escape lock hook head is an escape stop edge, the upper end of the escape stop edge is connected with a lower inclined guide surface, the upper end of the lower inclined guide surface is connected with an upper inclined guide surface, and the lower inclined guide surface and the upper inclined guide surface are between the vertex.

[0014] Preferably, the inner side edge of the limit lock hook is a limit stop edge, the upper end of the limit stop edge is connected to a locking surface for limiting the lock buckle, and the end of the locking surface is connected to an arc guide surface.

[0015] Preferably, one end of the torsion spring is fixed on the seat spring hole and the torsion spring can rotate in the seat spring hole, and the other end of the torsion spring passes through the hook spring hole.

[0016] A self-locking method for a self-locking bedside lock, wherein the torsion spring is installed after being compressed, so the torsion spring always applies a tension to the lock hook, and a tension line is obtained by drawing a line along the direction of the tension;

[0017] Taking the lock hook rotating shaft as the judgment basis, when the tension line is located above the axis of the lock hook rotating shaft, the lock hook is subjected to the force applied by the torsion spring to rotate it counterclockwise, and the self-locking bedside lock is in an unlocked state; when the tension line is located below the axis of the lock hook rotating shaft, the lock hook is subjected to the force applied by the torsion spring to rotate it clockwise, and the self-locking bedside lock is in a self-locking state.

[0018] The implementation process of the self-locking bedside lock specifically includes the implementation process of the lock buckle changing from a locked state to an unlocked state and the implementation process of the lock buckle changing from an unlocked state to a locked state.

[0019] The implementation process of the self-locking bedside lock specifically includes the following steps:

[0020] (1) Locked state;

[0021] The lock buckle is locked in the self-locking bedside lock, and the tension line is located below the axis of the lock hook shaft. Under the tension of the torsion spring, the lock hook tends to rotate clockwise around the lock hook shaft, and the limit stop edge on the lock hook is adjacent to the edge of the limit groove on the lock seat; at this time, the lock buckle is jointly restricted by the upper limit groove on the lock seat and the locking surface on the lock hook, and the lock buckle cannot fall out; the self-locking bedside lock is in a steady state, and the lock hook remains in a locked state;

[0022] (2) Open the lock hook;

[0023] Move the handle of the lock hook counterclockwise, so that the lock hook rotates counterclockwise around the lock hook shaft, the escape stop edge on the lock hook is adjacent to the edge of the limit groove on the lock seat, the tension line is located above the axis of the lock hook shaft, and under the tension of the torsion spring, the lock hook tends to rotate counterclockwise around the lock hook shaft, and the escape stop edge on the lock hook will be tightly attached to the edge of the limit groove on the lock seat, so that the lock hook remains in the open state, and the self-locking bedside lock remains in a stable state;

[0024] (3) Remove the lock;

[0025] Move the lock buckle upwards, and when the lock buckle contacts the lower inclined guide surface of the lock hook, the lock hook rotates clockwise around the lock hook shaft;

[0026] (iv) Reset the lock hook;

[0027] Continue to move the lock buckle upwards. When the lock buckle reaches the top of the lock hook along the lower inclined guide surface, the tension line is located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft, but the lock buckle will prevent the lock hook from rotating; continue to move the lock buckle upwards and when it is completely disengaged, the tension of the torsion spring will cause the lock hook to rotate clockwise around the lock hook shaft, thereby making the limit stop edge on the lock hook adjacent to the edge of the limit groove on the lock seat; the lock hook returns to the locked state and the lock hook is reset;

[0028] (5) Locking buckle disengaged;

[0029] At this time, the lock buckle is completely disengaged, the self-locking bedside lock is in a disengaged state, and the self-locking bedside lock maintains a steady state; the steady state includes two forms, the first one is that the limit stop edge is adjacent to the edge of the limit groove, and the tension line is located below the axis of the lock hook shaft, so that the lock hook has a tendency to rotate clockwise around the lock hook shaft; the second one is that the disengagement stop edge is adjacent to the edge of the limit groove, and the tension line is located above the axis of the lock hook shaft, so that the lock hook has a tendency to rotate counterclockwise around the lock hook shaft;

[0030] (vi) the first half of the locking process;

[0031] There are two situations in this process. The first is to move the lock buckle downwards and the lock buckle contacts the arc guide surface of the lock hook. The second is to move the lock buckle downwards and the lock buckle contacts the upper inclined surface of the lock hook. The V-guide opening on the lock seat enables the lock buckle to correctly enter the limit groove of the lock seat.

[0032] (VII) The second half of the locking process;

[0033] Continue to move the lock buckle downward, so that the lock buckle moves along the V-shaped guide opening and finally enters the limit groove. There are two situations in this process. The first is that the lock buckle moves along the arc guide surface, so that the lock hook rotates counterclockwise against the lock buckle under the pressure of the lock buckle. The second is that the lock buckle moves along the upper inclined surface, so that the lock hook rotates clockwise against the lock buckle under the pressure of the lock buckle. When the lock buckle passes the apex, the tension line will be located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft. Under the action of the torsion spring tension, the lock hook rotates clockwise until the arc guide surface contacts the lock buckle, and then the lock buckle continues to move along the arc guide surface, so that the lock hook rotates counterclockwise against the lock buckle under the pressure of the lock buckle.

[0034] (8) Locked state;

[0035] When the lock buckle moves along the arc to the surface and finally enters the limit groove completely, the tension line is located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft. The lock hook will rotate clockwise under the tension of the torsion spring and complete automatic locking;

[0036] Among them, steps (1) to (4) are the process of changing the lock buckle from a locked state to an unlocked state; steps (5) to (8) are the process of changing the lock buckle from an unlocked state to a locked state.

[0037] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0038] The present invention can not only quickly complete the unlocking, but also automatically restore the self-locking state after the function operation is completed, thereby reducing the number of manual operations required, greatly improving the use effect of the product, and reducing the difficulty and risk of using the product.

[0039] Some additional features of the present application may be explained in the following description. Some additional features of the present application will be apparent to those skilled in the art by inspection of the following description and corresponding drawings or understanding of the production or operation of the embodiments. The features disclosed in the present application may be realized and achieved by practice or use of various methods, means and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation of the present application. In each figure, the same reference numeral represents the same component.

[0041] Figure 1 The three-dimensional Figure 1 .

[0042] Figure 2 The three-dimensional Figure 2.

[0043] Figure 3 It is a three-dimensional diagram of the lock seat of the present invention.

[0044] Figure 4 It is a structural schematic diagram of the lock hook of the present invention.

[0045] Figure 5 It is a three-dimensional diagram of the lock hook of the present invention.

[0046] Figure 6 This is a state diagram of the implementation process (I) of the present invention.

[0047] Figure 7 This is a state diagram of the implementation process (II) of the present invention.

[0048] Figure 8 This is the state diagram of the implementation process (III) of the present invention.

[0049] Fig. 9 This is a state diagram of the implementation process (IV) of the present invention.

[0050] Fig.10 This is a state diagram of the implementation process (V) of the present invention.

[0051] Fig.11 This is a state diagram of the implementation process (six) of the present invention.

[0052] Fig.12 This is the state diagram of the implementation process (VII) of the present invention.

[0053] Fig.13 This is a state diagram of the implementation process (eight) of the present invention.

[0054] Description of reference numerals:

[0055] 100, lock seat; 101, mounting plate; 102, vertical plate; 103, limit groove; 104, V-shaped guide opening; 105, seat spring hole; 106, arc groove; 107, seat shaft hole; 108, limit plate; 109, swing groove;

[0056] 200, lock hook shaft;

[0057] 300, lock;

[0058] 400, lock hook;

[0059] 410, handle;

[0060] 420, lock hook seat; 421, hook shaft hole; 422, hook spring hole;

[0061] 430, escape lock hook; 431, escape stop edge; 432, lower inclined guide surface; 433, upper inclined guide surface; 434, vertex;

[0062] 440, limit lock hook; 441, limit stop edge; 442, locking surface; 443, arc guide surface;

[0063] 500. Torsion spring. DETAILED DESCRIPTION

[0064] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0065] It should be noted that if the description and claims of the present application and the above-mentioned drawings relate to the terms "first", "second", etc., they are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, if the terms "including" and "having" and any of their variations are involved, it is intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0066] In this application, if the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0067] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0068] In addition, in this application, the terms "installed", "set", "provided with", "connected", "connected", "socketed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0069] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0070] Example 1

[0071] like Figure 1 , 2 As shown, a self-locking bedside lock, which cooperates with a lock buckle 300, includes a lock base 100, a lock hook 400 arranged on the base 100, and a torsion spring 500 arranged on both the lock base 100 and the lock hook 400; the lock hook 400 is fixed to the lock base 100 through a lock hook rotating shaft 200 and can rotate along the lock hook rotating shaft.

[0072] The torsion spring is a prior art, and after being set, it is in a compressed state, so it can provide a continuous pulling force for the lock hook.

[0073] The lock is a prior art, which is a buckling component arranged on the headboard, and can achieve the effect of locking the headboard by cooperating with the headboard of the present application.

[0074] like Figure 3 As shown, the lock seat 100 is composed of a mounting plate 101 and a vertical plate 102 vertically arranged on the mounting plate 101 ; a swing groove 109 is also arranged at a position adjacent to the vertical plate 102 on the mounting plate 101 .

[0075] The vertical plate 102 is provided with a limiting groove 103 which penetrates the vertical plate 102 from the middle upward, and a seat shaft hole 107 for setting the lock hook shaft 200 is also provided on the vertical plate 102 at a position below the limiting groove 103, and a seat spring hole 105 which cooperates with the torsion spring 500 is provided at the side edge of the vertical plate 102.

[0076] The preferred solution is to set a limit plate 108 on the vertical plate 102. The limit plate has a simple structure and is easy to implement. In addition, the limit plate can also be replaced by adjusting the length of the swing groove or adjusting the distance between the handle and the lower side of the mounting plate. However, compared with directly setting the limit plate, the above two solutions require higher precision and the processing cost will also increase accordingly.

[0077] Another preferred solution is to set an arc groove 106 on the vertical plate 102, and achieve limiting by the cooperation of the arc groove and the torsion spring. The arc groove can replace the limiting plate to achieve limiting, and can also be set together with the limiting plate to better ensure the limiting effect. The difficulty of opening the arc groove is relatively small, and the implementation cost is relatively low.

[0078] The opening of the limit groove 103 is a V-shaped guide opening 104; the setting height of the seat spring hole 105 is located between the bottom of the limit groove 103 and the seat shaft hole 107; the arc groove 106 is arc-shaped and is located between the seat shaft hole 107 and the seat spring hole 105; the limit plate 108 and the swing groove 109 are located on the same side of the vertical plate 101, and the limit plate 108 is adjacent to the bottom of the limit groove 103.

[0079] like Figure 4 , 5 As shown, the lock hook 400 is composed of a handle 410, a lock hook seat 420 arranged on the handle 410, and a disengagement lock hook head 430 and a limit lock hook head 440 respectively arranged on the left and right sides of the upper end of the lock hook seat 420.

[0080] A hook shaft hole 421 for setting the lock hook shaft 200 is provided at the middle position of the lock hook seat 420, and a hook spring hole 422 matched with the torsion spring 500 is provided on the side of the lock hook seat 420.

[0081] The setting positions of the seat spring hole and the hook spring hole can be adjusted according to actual needs, but a principle must be followed during the adjustment process, that is, to prove that the tension line formed by the tension of the torsion spring between the two can be displaced above or below the axis of the lock hook rotating shaft during the left and right swing of the lock hook.

[0082] In this embodiment, the hook spring hole is arranged on a protruding structure facing outward on the side of the lock hook seat, and its purpose is to meet the displacement requirements of the above-mentioned tension line.

[0083] The lower end of the lock hook seat 420 passes through the swing slot 109 from top to bottom and is fixed on the handle 410.

[0084] The inner side edge of the escape lock hook head 430 is an escape stop edge 431 , the upper end of the escape stop edge 431 is connected to a lower inclined guide surface 432 , the upper end of the lower inclined guide surface 432 is connected to an upper inclined guide surface 433 , and a vertex 434 is between the lower inclined guide surface 432 and the upper inclined guide surface 433 .

[0085] The inner side edge of the limit lock hook 440 is a limit stop edge 441 , the upper end of the limit stop edge 441 is connected to a locking surface 442 for limiting the lock buckle 300 , and the end of the locking surface 442 is connected to an arc guide surface 443 .

[0086] The limiting plate 108 is located between the lock hook seat 420, the escape lock hook head 430 and the limiting lock hook head 440; one end of the torsion spring 500 is fixed on the seat spring hole 105 and the torsion spring 500 can rotate in the seat spring hole 105, and the other end of the torsion spring 500 passes through the hook spring hole 422 and the arc groove 106 in sequence.

[0087] The limiting plate, the stop edge of the lock hook head and the limit stop edge of the limit lock hook head effectively limit the rotatable range of the lock hook seat, thereby ensuring the effectiveness of the rotation of the lock hook seat.

[0088] When the lock buckle is inserted, the lock buckle contacts the upper inclined guide surface or the arc guide surface, and the downward force can make the lock buckle slide into the limiting groove along the guidance of the upper inclined guide surface or the arc guide surface and finally be locked.

[0089] When the lock buckle needs to be pulled out, the lock buckle is brought into contact with the lower inclined guide surface or the vertex, and the upward force can cause the lock buckle to be pulled out along the limiting groove.

[0090] Example 2

[0091] A self-locking method for a self-locking bedside lock, wherein the torsion spring is installed after being compressed, so the torsion spring always applies a tension to the lock hook, and a tension line is obtained by drawing a line along the direction of the tension;

[0092] Taking the lock hook rotating shaft as the judgment basis, when the tension line is located above the axis of the lock hook rotating shaft, the lock hook is subjected to the force applied by the torsion spring to rotate it counterclockwise, and the self-locking bedside lock is in an unlocked state; when the tension line is located below the axis of the lock hook rotating shaft, the lock hook is subjected to the force applied by the torsion spring to rotate it clockwise, and the self-locking bedside lock is in a self-locking state.

[0093] The implementation process of the self-locking bedside lock specifically includes the implementation process of the lock buckle changing from a locked state to an unlocked state and the implementation process of the lock buckle changing from an unlocked state to a locked state.

[0094] The implementation process of the self-locking bedside lock specifically includes the following steps:

[0095] (A) Locked state, such as Figure 6 As shown;

[0096] The lock buckle is locked in the self-locking bedside lock, and the tension line is located below the axis of the lock hook shaft. Under the tension of the torsion spring, the lock hook tends to rotate clockwise around the lock hook shaft, and the limit stop edge on the lock hook contacts the limit plate on the lock seat; at this time, the lock buckle is jointly restricted by the upper limit groove on the lock seat and the locking surface on the lock hook, and the lock buckle cannot fall out; the self-locking bedside lock is in a steady state, and the lock hook remains in a locked state;

[0097] (ii) Open the lock hook, such as Figure 7 As shown;

[0098] Move the handle of the lock hook counterclockwise, so that the lock hook rotates counterclockwise around the lock hook shaft, the escape stop edge on the lock hook contacts the limit plate on the lock seat, the tension line is located above the axis of the lock hook shaft, and under the tension of the torsion spring, the lock hook tends to rotate counterclockwise around the lock hook shaft, and the escape stop edge on the lock hook will be tightly attached to the limit plate on the lock seat, so that the lock hook remains in the open state, and the self-locking bedside lock remains in a stable state;

[0099] (III) Remove the lock, such as Figure 8 As shown;

[0100] Move the lock buckle upwards, and when the lock buckle contacts the lower inclined guide surface of the lock hook, the lock hook rotates clockwise around the lock hook shaft;

[0101] (IV) Lock hook reset, such as Fig. 9 As shown;

[0102] Continue to move the lock buckle upwards. When the lock buckle reaches the top of the lock hook along the lower inclined guide surface, the tension line is located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft, but the lock buckle will prevent the lock hook from rotating; continue to move the lock buckle upwards and when it is completely disengaged, the tension of the torsion spring will cause the lock hook to rotate clockwise around the lock hook shaft, thereby causing the limit stop edge on the lock hook to contact the limit plate on the lock seat; the lock hook returns to the locked state and the lock hook is reset;

[0103] (V) Locking buckle disengaged state, such as Fig.10 As shown;

[0104] At this time, the lock buckle is completely disengaged, the self-locking bedside lock is in the unlocked state, and the self-locking bedside lock maintains a steady state; the steady state includes two forms, the first is that the limit stop edge contacts the limit plate, the tension line is located below the axis of the lock hook shaft, so that the lock hook has a tendency to rotate clockwise around the lock hook shaft; the second is that the disengagement stop edge contacts the limit plate, the tension line is located above the axis of the lock hook shaft, so that the lock hook has a tendency to rotate counterclockwise around the lock hook shaft;

[0105] (VI) The first half of the locking process, such as Fig.11 As shown;

[0106] There are two situations in this process. The first is to move the lock buckle downwards and the lock buckle contacts the arc guide surface of the lock hook. The second is to move the lock buckle downwards and the lock buckle contacts the upper inclined surface of the lock hook. The V-guide opening on the lock seat enables the lock buckle to correctly enter the limit groove of the lock seat.

[0107] (VII) The second half of the locking process, such as Fig.12 As shown;

[0108] Continue to move the lock buckle downward, so that the lock buckle moves along the V-shaped guide opening and finally enters the limit groove. There are two situations in this process. The first is that the lock buckle moves along the arc guide surface, so that the lock hook rotates counterclockwise against the lock buckle under the pressure of the lock buckle. The second is that the lock buckle moves along the upper inclined surface, so that the lock hook rotates clockwise against the lock buckle under the pressure of the lock buckle. When the lock buckle passes the apex, the tension line will be located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft. Under the action of the torsion spring tension, the lock hook rotates clockwise until the arc guide surface contacts the lock buckle, and then the lock buckle continues to move along the arc guide surface, so that the lock hook rotates counterclockwise against the lock buckle under the pressure of the lock buckle.

[0109] (VIII) Locked state, such as Fig.13 As shown;

[0110] When the lock buckle moves along the arc to the surface and finally enters the limit groove completely, the tension line is located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft. The lock hook will rotate clockwise under the tension of the torsion spring and complete automatic locking;

[0111] Among them, steps (1) to (4) are the process of changing the lock buckle from a locked state to an unlocked state; steps (5) to (8) are the process of changing the lock buckle from an unlocked state to a locked state.

[0112] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0113] In addition, the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the present invention description and its drawings are illustrative and do not constitute a limitation of the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. A self-locking bedside lock, matched with a lock buckle (300), characterized in that: The invention comprises a lock seat (100), a lock hook (400) arranged on the seat (100), and a torsion spring (500) arranged on both the lock seat (100) and the lock hook (400); the lock hook (400) is fixed on the lock seat (100) via a lock hook rotating shaft (200) and can rotate along the lock hook rotating shaft.

2. A self-locking bedside lock according to claim 1, characterized in that: The lock seat (100) is composed of a mounting plate (101) and a vertical plate (102) vertically arranged on the mounting plate (101); a swing groove (109) is also arranged at a position adjacent to the vertical plate (102) on the mounting plate (101); The vertical plate (102) is provided with a limiting groove (103) which penetrates the vertical plate (102) from the middle upward, and a seat shaft hole (107) for setting a lock hook shaft (200) is also provided on the vertical plate (102) at a position below the limiting groove (103), and a seat spring hole (105) which matches with the torsion spring (500) is provided at the side edge of the vertical plate (102); The opening of the limiting groove (103) is a V-shaped guide opening (104).

3. A self-locking bedside lock according to claim 2, characterized in that: The lock hook (400) is composed of a handle (410), a lock hook seat (420) arranged on the handle (410), and a release lock hook head (430) and a limit lock hook head (440) respectively arranged on the left and right sides of the upper end of the lock hook seat (420).

4. A self-locking bedside lock according to claim 3, characterized in that: A hook rotating shaft hole (421) for setting a lock hook rotating shaft (200) is provided at the middle position of the lock hook seat (420), and a hook spring hole (422) matching with the torsion spring (500) is provided on the side of the lock hook seat (420); the lower end of the lock hook seat (420) passes through the swing groove (109) from top to bottom and is fixed on the handle (410).

5. A self-locking bedside lock according to claim 4, characterized in that: The inner side edge of the escape lock hook head (430) is an escape stop edge (431), the upper end of the escape stop edge (431) is connected to a lower inclined guide surface (432), the upper end of the lower inclined guide surface (432) is connected to an upper inclined guide surface (433), and a vertex (434) is between the lower inclined guide surface (432) and the upper inclined guide surface (433).

6. A self-locking bedside lock according to claim 5, characterized in that: The inner side edge of the limit lock hook head (440) is a limit stop edge (441), the upper end of the limit stop edge (441) is connected to a locking surface (442) for limiting the lock buckle (300), and the end of the locking surface (442) is connected to an arc guide surface (443).

7. A self-locking bedside lock according to claim 6, characterized in that: One end of the torsion spring (500) is fixed on the seat spring hole (105) and the torsion spring (500) can rotate in the seat spring hole (105), and the other end of the torsion spring (500) passes through the hook spring hole (422).

8. A self-locking method for a self-locking bedside lock according to claims 1-7, characterized in that: The torsion spring (500) is installed after being compressed, so the torsion spring (500) always applies a tension to the lock hook (400), and a tension line is obtained by drawing a line along the direction of the tension; Taking the lock hook rotating shaft (200) as a basis for determination, when the tension line is located above the axis of the lock hook rotating shaft (200), the lock hook (400) is subjected to a force exerted by the torsion spring (500) to rotate it counterclockwise, and the self-locking bedside lock is in an unlocked state; when the tension line is located below the axis of the lock hook rotating shaft (200), the lock hook (400) is subjected to a force exerted by the torsion spring (500) to rotate it clockwise, and the self-locking bedside lock is in a self-locking state.

9. A self-locking method for a self-locking bedside lock according to claim 8, characterized in that: The implementation process of the self-locking bedside lock specifically includes the implementation process of the lock buckle changing from a locked state to an unlocked state and the implementation process of the lock buckle changing from an unlocked state to a locked state.

10. A self-locking method for a self-locking bedside lock according to claim 9, characterized in that: The implementation process of the self-locking bedside lock specifically includes the following steps: (1) Locked state; The lock buckle is locked in the self-locking bedside lock, and the tension line is located below the axis of the lock hook shaft. Under the tension of the torsion spring, the lock hook tends to rotate clockwise around the lock hook shaft, and the limit stop edge on the lock hook is adjacent to the edge of the limit groove on the lock seat; at this time, the lock buckle is jointly restricted by the upper limit groove on the lock seat and the locking surface on the lock hook, and the lock buckle cannot fall out; the self-locking bedside lock is in a steady state, and the lock hook remains in a locked state; (2) Open the lock hook; Move the handle of the lock hook counterclockwise, so that the lock hook rotates counterclockwise around the lock hook shaft, the escape stop edge on the lock hook is adjacent to the edge of the limit groove on the lock seat, the tension line is located above the axis of the lock hook shaft, and under the tension of the torsion spring, the lock hook tends to rotate counterclockwise around the lock hook shaft, and the escape stop edge on the lock hook will be tightly attached to the edge of the limit groove on the lock seat, so that the lock hook remains in the open state, and the self-locking bedside lock remains in a stable state; (3) Remove the lock; Move the lock buckle upwards, and when the lock buckle contacts the lower inclined guide surface of the lock hook, the lock hook rotates clockwise around the lock hook shaft; (iv) Reset the lock hook; Continue to move the lock buckle upwards. When the lock buckle reaches the top of the lock hook along the lower inclined guide surface, the tension line is located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft, but the lock buckle will prevent the lock hook from rotating; continue to move the lock buckle upwards and when it is completely disengaged, the tension of the torsion spring will cause the lock hook to rotate clockwise around the lock hook shaft, thereby making the limit stop edge on the lock hook adjacent to the edge of the limit groove on the lock seat; the lock hook returns to the locked state and the lock hook is reset; (5) Locking buckle disengaged; At this time, the lock buckle is completely disengaged, the self-locking bedside lock is in a disengaged state, and the self-locking bedside lock maintains a steady state; the steady state includes two forms, the first one is that the limit stop edge is adjacent to the edge of the limit groove, and the tension line is located below the axis of the lock hook shaft, so that the lock hook has a tendency to rotate clockwise around the lock hook shaft; the second one is that the disengagement stop edge is adjacent to the edge of the limit groove, and the tension line is located above the axis of the lock hook shaft, so that the lock hook has a tendency to rotate counterclockwise around the lock hook shaft; (vi) the first half of the locking process; There are two situations in this process. The first is to move the lock buckle downwards and the lock buckle contacts the arc guide surface of the lock hook. The second is to move the lock buckle downwards and the lock buckle contacts the upper inclined surface of the lock hook. The V-guide opening on the lock seat enables the lock buckle to correctly enter the limit groove of the lock seat. (VII) The second half of the locking process; Continue to move the lock buckle downward, so that the lock buckle moves along the V-shaped guide opening and finally enters the limit groove. There are two situations in this process. The first is that the lock buckle moves along the arc guide surface, so that the lock hook rotates counterclockwise against the lock buckle under the pressure of the lock buckle. The second is that the lock buckle moves along the upper inclined surface, so that the lock hook rotates clockwise against the lock buckle under the pressure of the lock buckle. When the lock buckle passes the apex, the tension line will be located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft. Under the action of the torsion spring tension, the lock hook rotates clockwise until the arc guide surface contacts the lock buckle, and then the lock buckle continues to move along the arc guide surface, so that the lock hook rotates counterclockwise against the lock buckle under the pressure of the lock buckle. (8) Locked state; When the lock buckle moves along the arc to the surface and finally enters the limit groove completely, the tension line is located below the axis of the lock hook shaft, so that the lock hook tends to rotate clockwise around the lock hook shaft. The lock hook will rotate clockwise under the tension of the torsion spring and complete automatic locking; Among them, steps (1) to (4) are the process of changing the lock buckle from a locked state to an unlocked state; steps (5) to (8) are the process of changing the lock buckle from an unlocked state to a locked state.

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