Automatic locking mechanism

Abstract

The utility model provides an automatic locking mechanism which is characterized by comprising a supporting rod (1), a limiting rod (2) and a rotating shaft assembly (3) are hinged to the two ends of the supporting rod (1) respectively, a balancing weight (5) is fixed to the bottom of the limiting rod (2), one end of a sliding rod (4) is hinged to the rotating shaft assembly (3), and the other end of the sliding rod (4) is hinged to the rotating shaft assembly (3). The other end of the sliding rod (4) is arranged on the periphery of the limiting rod (2) in a sleeving mode and can slide in a lifting mode relative to the limiting rod (2), and when the sliding rod (4) is arranged on the top of the limiting rod (2) in a sleeving mode, position locking relative to the limiting rod (2) is achieved. The structure is simple and operation is convenient; the device can be effectively applied to underwater environments and the like and is wide in application range; and the movement limiting of the sliding rod during locking and unlocking can be ensured, and the locking and unlocking sensitivity is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of locking structures, in particular to an automatic locking mechanism. Background Art

[0002] The prior art includes a variety of locking structures, such as mechanical, electric, gas-liquid, etc. Among them, most mechanical locking structures are simple in structure and easy to operate, but have poor sensitivity and cannot effectively guarantee the accuracy and effectiveness of the locking and unlocking process; while the electric type, while ensuring the sensitivity of locking and unlocking, is often complex in structure and expensive, and cannot be effectively applied to water environments due to live operation; the gas-liquid type also has the defects of complex structure and high cost.

[0003] Therefore, there is an urgent need to provide an automatic locking mechanism to solve the defects and shortcomings in the above-mentioned prior art. Utility Model Content

[0004] In order to solve the defects and shortcomings in the prior art, the utility model provides an automatic locking mechanism.

[0005] The specific solution provided by the utility model is:

[0006] An automatic locking mechanism, characterized in that it includes a support rod, both ends of which are hinged to a limit rod and a rotating shaft assembly respectively, a counterweight block is fixed to the bottom of the limit rod, one end of a sliding rod is hinged to the rotating shaft assembly, the other end of the sliding rod is sleeved on the outer periphery of the limit rod and can be lifted and slid relative to the limit rod, and when the sliding rod is sleeved on the top of the limit rod, the position relative to the limit rod is locked.

[0007] As a further preferred embodiment of the present invention, the support rod is fixedly connected to an external fixing member.

[0008] As a further preferred embodiment of the utility model, the support rod is configured to be L-shaped, one bent end of the support rod is hinged to the limit rod, and the other end is hinged to the rotating shaft assembly.

[0009] As a further preferred embodiment of the present utility model, the limiting rod comprises a limiting rod body, and a limiting hinged portion hinged to one end of the support rod is arranged on the top of the limiting rod body.

[0010] As a further preferred embodiment of the present utility model, a limiting portion is provided in a concave manner at a connection position between the limiting hinge portion and the limiting rod body and at a side away from the rotating shaft assembly.

[0011] As a further preferred embodiment of the present utility model, the rotating shaft assembly is configured to be an ellipse that is smaller at the top and larger at the bottom.

[0012] As a further preferred embodiment of the present invention, the slide bar is configured as a hollow structure.

[0013] As a further preferred embodiment of the present invention, reinforcing ribs are arranged inside the slide bar.

[0014] As a further preferred embodiment of the present invention, the counterweight block is eccentrically arranged at the bottom of the limit rod toward one side of the rotating shaft assembly, and can lock the position of the sliding rod relative to the limit rod when no external force is applied.

[0015] As a further preferred embodiment of the present invention, the counterweight block is arranged to extend outward toward the front and rear sides at the bottom of the limiting rod.

[0016] Compared with the prior art, the technical effects that can be achieved by the utility model include:

[0017] 1) The utility model discloses an automatic locking mechanism, which only comprises a support rod, a limit rod, a rotating shaft assembly, a sliding rod and a counterweight block, etc., and has a simple structure and is easy to operate.

[0018] 2) The utility model provides an automatic locking mechanism, which does not require electrical operation and can be effectively used in underwater environments and has a wide range of applications.

[0019] 3) The utility model provides an automatic locking mechanism, in which a limiting portion is provided on the limiting rod, and a counterweight block is provided at the bottom of the limiting rod extending toward the front and rear sides, thereby ensuring the movement limit of the slide bar during locking and unlocking, and further ensuring the sensitivity of locking and unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of the automatic locking mechanism provided by the utility model.

[0021] Figure 2 This is a structural plan view of the automatic locking mechanism provided by the utility model when locked.

[0022] Figure 3 This is a structural stereogram of the automatic locking mechanism provided by the utility model when locked.

[0023] Figure 4 This is a structural plan view of the automatic locking mechanism provided by the utility model when unlocked.

[0024] Figure 5 This is a structural stereogram of the automatic locking mechanism provided by the utility model when unlocked. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] [First embodiment]

[0029] like Figure 1-5 The figure shows an automatic locking mechanism provided by the first embodiment of the utility model, including a support rod 1, which is the main load-bearing component in the automatic locking mechanism, and is fixedly connected to an external fixing member, undertakes the task of hanging weight, and is connected to other components at the same time, so that the entire mechanism can work stably; in this embodiment, as Figure 1 As shown, the support rod 1 is configured to be L-shaped, one bent end of the support rod 1 is hinged to the limit rod 2 , and the other end is hinged to the shaft assembly 3 .

[0030] The two ends of the support rod 1 are hinged with a limit rod 2 and a rotating shaft assembly 3 respectively. The limit rod 2 in this embodiment includes a limit rod body 20. The top of the limit rod body 20 is provided with a limit hinge part 21 hinged to one end of the support rod 1, and the hinge connection with one end of the support rod 1 is achieved through the limit hinge part 21; a limit part 22 is concavely provided at the connection position between the limit hinge part 21 and the limit rod body 20 and on one side away from the rotating shaft assembly 3, and the limit part 22 can be used to achieve the limitation of the sliding rod 4 when it is locked relative to the limit rod 2.

[0031] like Figure 1 As shown, the shaft assembly 3 in this embodiment is set to an ellipse that is small at the top and large at the bottom. The shaft assembly 3 increases the activity space of the slide rod 4, so that the slide rod 4 can slide smoothly within a certain range, which helps to realize the automatic locking and unlocking functions and improves the use efficiency of the mechanism.

[0032] A counterweight 5 is fixed at the bottom of the limit rod 2. The counterweight 5 is the key to the automatic locking and unlocking of the automatic locking mechanism in this embodiment. The design and selection of the counterweight needs to consider the balance and stability of the automatic locking mechanism to ensure the smooth operation of the mechanism during the unlocking and locking process. The counterweight 5 in this embodiment is eccentrically arranged at the bottom of the limit rod 2 toward one side of the rotating shaft assembly 3. This arrangement enables the slide bar 4 to be located at the top of the limit rod 2 and locked relative to the position of the limit rod 2 when no external force is applied. As a further preference, the counterweight 5 is extended toward the front and rear sides at the bottom of the limit rod 2, so that when the slide bar 4 slides downward relative to the limit rod 2 after unlocking, it can be limited due to the obstruction of the axially extended counterweight 5, thereby ensuring the movement limit of the slide bar during locking and unlocking, and further ensuring the sensitivity of locking and unlocking.

[0033] like Figure 1 As shown, one end of the slide rod 4 is hinged to the rotating shaft assembly 3, and the other end of the slide rod 4 is sleeved on the outer periphery of the limit rod 2 and can be lifted and slid relative to the limit rod 2. When the slide rod 4 is sleeved on the top of the limit rod 2, the position relative to the limit rod 2 is locked.

[0034] The slide rod 4 in this embodiment is configured as a hollow structure. This design enables the slide rod 4 to slide upward relative to the limit rod 2 when subjected to a relatively small force. Preferably, a reinforcing rib 41 is provided inside the slide rod 4 to further improve the stability and strength of the slide rod 4 with a hollow structure when sliding.

[0035] The specific working process of the automatic locking mechanism provided in this embodiment is as follows:

[0036] When no external force is applied, the slide bar 4 is locked relative to the limit rod 2 and is located at the upper limit portion 22 of the limit rod 2. At this time, the counterweight 5 causes the limit rod 2 to be located at the upper limit portion 22 due to its own gravity. Figure 2-3 In the position shown, the sliding rod 4 is stably located in the limiting portion 22 by the gravity of the counterweight 5, and is in a locked state at this time;

[0037] When subjected to a lateral external force (for example, when driven by an external force from left to right in the figure), the counterweight 5 drives the limit rod 2 to rotate clockwise around the top hinge position. At this time, the limiting effect of the limit portion 22 on the slide rod 4 disappears, and the slide rod 4 slides downward relative to the limit rod 2 on the outside of the limit rod 2 until it is blocked by the axially extended counterweight 5. At this time, it is in the unlocked state. Figure 4-5As shown;

[0038] When subjected to an upward external force (such as buoyancy), the slide bar 4 slides upward relative to the limit bar 2 due to the buoyancy and eventually returns to the locked position.

[0039] The device can be used to open and close valve devices such as floating switches.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An automatic locking mechanism, characterized in that: The invention comprises a support rod (1), wherein two ends of the support rod (1) are respectively hinged to a limit rod (2) and a rotating shaft assembly (3), a counterweight block (5) is fixed to the bottom of the limit rod (2), one end of a slide rod (4) is hinged to the rotating shaft assembly (3), the other end of the slide rod (4) is sleeved on the outer periphery of the limit rod (2) and can be lifted and slid relative to the limit rod (2), and the position of the slide rod (4) relative to the limit rod (2) is locked when the slide rod (4) is sleeved on the top of the limit rod (2).

2. An automatic locking mechanism according to claim 1, characterized in that: The support rod (1) is fixedly connected to an external fixing member.

3. The automatic locking mechanism according to claim 1, characterized in that: The support rod (1) is arranged in an L shape, one bent end of the support rod (1) is hinged to the limit rod (2), and the other end is hinged to the rotating shaft assembly (3).

4. The automatic locking mechanism according to claim 1, characterized in that: The limiting rod (2) comprises a limiting rod body (20), and a limiting hinge portion (21) hinged to one end of the support rod (1) is provided at the top of the limiting rod body (20).

5. An automatic locking mechanism according to claim 4, characterized in that: A limiting portion (22) is provided in a concave manner at a connection position between the limiting hinge portion (21) and the limiting rod body (20) and on a side away from the rotating shaft assembly (3).

6. The automatic locking mechanism according to claim 1, characterized in that: The rotating shaft assembly (3) is configured to be an ellipse that is smaller at the top and larger at the bottom.

7. The automatic locking mechanism according to claim 1, characterized in that: The sliding rod (4) is configured as a hollow structure.

8. An automatic locking mechanism according to claim 7, characterized in that: A reinforcing rib (41) is provided inside the sliding rod (4).

9. The automatic locking mechanism according to claim 1, characterized in that: The counterweight block (5) is eccentrically arranged at the bottom of the limiting rod (2) toward one side of the rotating shaft assembly (3), and can lock the position of the sliding rod (4) relative to the limiting rod (2) when no external force is applied.

10. The automatic locking mechanism according to claim 1, characterized in that: The counterweight block (5) is arranged at the bottom of the limiting rod (2) to extend toward the front and rear sides.

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