A locking mechanism for a rotating base and a locking method thereof

Abstract

The present invention relates to a locking mechanism, and in particular to a locking mechanism for a rotating base and a locking method thereof, comprising a locking pin and a locking pin sleeve which is sleeved on the locking pin, the locking pin sleeve being connected to a fixed part, the locking pin being matched with a locking pin hole provided on a moving part, and a guide sleeve, the locking pin being inserted in the locking pin sleeve, the guide sleeve being sleeved on an end of the locking pin away from the moving part and being fixedly connected thereto, one end of the guide sleeve being in contact with the locking pin sleeve, and the connecting surfaces of the guide sleeve and the locking pin sleeve being inclined surfaces which match each other, so that the rotation of the guide sleeve drives the movement of the locking pin in the locking pin sleeve. The locking mechanism has the excellent characteristics of simple structure, low cost, safety and reliability, and convenient operation, and does not have the problem of unstable locking performance due to the use of a pull line for a long time, and has stable locking performance, and can be widely used in the rotating chassis of light weapons.

Description

Technical Field

[0001] The invention relates to a locking mechanism, and in particular to a locking mechanism for a rotating base and a locking method thereof. Background Art

[0002] The rotating mechanism (moving parts) in the rotating base sometimes needs to stop rotating during use. At this time, external force needs to be applied to ensure the locking of the rotating mechanism to stop the rotation of the rotating mechanism. In the prior art, belt damping brakes or gear brakes are usually used. After the former is braked, the rotating mechanism may cause shaking under the action of impact force, while the latter has an overly complex structure, high cost, and is not easy to operate.

[0003] Alternatively, as disclosed in a Chinese patent with publication number CN 213575033 U, a locking mechanism comprises a locking pin, a locking pin sleeve, and a locking pin cap and a locking pin sleeve that are interlocked with each other, wherein the locking pin sleeve is connected to a fixing member, the locking pin fits in a locking pin hole provided on a moving member, the locking pin is inserted in the locking pin sleeve, a spring is provided in the locking pin sleeve, a flange is provided in the circumferential direction of the locking pin, the right end of the spring abuts against the flange, a wire fixing column is provided in the locking pin, one end of the wire fixing column is connected to a wire, the wire passes through the spring and the locking pin cap, and is connected to a locking control mechanism. However, the locking mechanism must control the insertion or extraction of the locking pin into the moving part through a pull wire running through the spring, thereby controlling the locking of the rocking vehicle. However, the use of a traditional locking wrench in conjunction with a pull wire for locking requires a larger assembly space, which is not convenient for application on a rotating base in a more precise device with a smaller assembly space, such as a rotating base of a light weapon. Moreover, when using the pull wire, the pull wire needs to be kept under stress at all times when unlocked, which is not convenient for operators to use. Moreover, as the use time increases, the pull wire becomes longer under stress, resulting in unstable unlocking or locking of the locking mechanism.

[0004] Therefore, it is urgent to propose a new locking mechanism for a rotating base to achieve stable locking of the rotating mechanism in the rotating base, thereby ensuring the stability of the rotating base. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a locking mechanism for a rotating base and a locking method thereof, so as to solve the technical problems raised in the background technology and achieve stable locking of the rotating base.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A locking mechanism for a rotating base, comprising a locking pin and a locking pin sleeve sleeved on the locking pin, the locking pin sleeve being connected to a fixing member, the locking pin being matched with a locking pin hole provided on a moving member, and further comprising a guide sleeve and a spring, the locking pin being inserted in the locking pin sleeve, the guide sleeve sleeve being sleeved on an end of the locking pin away from the moving member and being fixedly connected to the locking pin, one end of the guide sleeve being in contact with the locking pin sleeve, and the connecting surfaces of the guide sleeve and the locking pin sleeve being inclined surfaces matched with each other so that the rotation of the guide sleeve drives the movement of the locking pin in the locking pin sleeve, so that the locking pin has an unlocking position received in the locking pin sleeve and a locking position inserted into the locking pin hole;

[0008] The spring is arranged in the lock pin sleeve and is sleeved on the lock pin. The lock pin is provided with a flange along the circumferential direction. One end of the spring abuts against the flange, and the other end abuts against the lock pin sleeve.

[0009] Furthermore, a brake handle for rotating the guide sleeve is provided on the circumference of the guide sleeve.

[0010] Furthermore, it also includes a sleeve buckled on the guide sleeve, and the sleeve is provided with a through hole for passing the brake handle.

[0011] Furthermore, a fixed connecting plate which is externally mounted on the locking pin sleeve is provided between the locking pin sleeve and the fixing member.

[0012] A locking method for a locking mechanism of a rotating base, using the above-mentioned locking mechanism, comprises the following steps:

[0013] Step 1: Install the locking mechanism on the fixed part of the rotating base to be controlled, and reserve a locking pin hole on the moving part of the rotating base to match the locking pin;

[0014] Step 2: When the moving part needs to be braked, the brake handle is slowly rotated to the locking position, and under the action of the connecting surface between the guide sleeve and the lock pin sleeve, the guide sleeve and the lock pin are driven to move toward the direction where the moving part is located, and under the action of the spring, the lock pin falls into the lock pin hole to achieve the braking of the moving part;

[0015] Step 3: When the moving part needs to be unlocked, the brake handle is slowly rotated to the unlocking position, and the locking pin is received in the locking pin sleeve to unlock the moving part.

[0016] The beneficial effects of the present invention are:

[0017] The present invention provides a locking mechanism for a rotating base and a locking method thereof. The connecting surface between a rotating guide sleeve and a locking pin sleeve is set to an inclined structural form, and the locking pin is fixedly connected to the guide sleeve, so that the locking pin can have an unlocking position in which the locking pin is received in the locking pin sleeve and a locking position in which the locking pin is inserted into the locking pin hole by rotating the guide sleeve. The locking and unlocking of the locking mechanism can be achieved by rotating the guide sleeve. The locking mechanism has the excellent characteristics of simple structure, low cost, safety and reliability, and easy operation, and requires a small assembly space, and can be widely used in rotating chassis of light weapons.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 is a schematic diagram of the structure of the locking mechanism for the rotating base in the embodiment (unlocked position);

[0021] Figure 2 is a structural schematic diagram of a locking mechanism for a rotating base in an embodiment (locking position);

[0022] Figure 3 for Figure 1 Schematic diagram of the local structure;

[0023] Figure 4 for Figure 2 Schematic diagram of the local structure;

[0024] Figure 5 Schematic diagram of the three-dimensional structure of the locking mechanism for the rotating base in the embodiment.

[0025] Figure numerals: guide sleeve 1, straight pin 2, outer sleeve 3, brake handle 4, lock pin sleeve 5, spring 6, fixed connecting plate 7, lock pin 8, fixing part 9, moving part 10. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] See also Figure 1 to Figure 5 , is a locking mechanism for a rotating base, comprising a locking pin 8 and a locking pin sleeve 5 sleeved on the locking pin 8, the locking pin sleeve 5 is connected to a fixing member 9, the locking pin 8 is matched with a locking pin 8 hole set on a moving member 10, and also comprises a guide sleeve 1 and a spring 6, the locking pin 8 is inserted in the locking pin sleeve 5, the guide sleeve 1 is sleeved on one end of the locking pin 8 away from the moving member 10 and is fixedly connected to the locking pin, one end of the guide sleeve 1 is in contact with the locking pin sleeve 5, and the connecting surfaces of the guide sleeve 1 and the locking pin sleeve 5 are inclined surfaces that cooperate with each other so that rotating the guide sleeve 1 drives the locking pin 8 to move in the locking pin sleeve 5, so that the locking pin 8 has an unlocking position received in the locking pin sleeve 5 and a locking position inserted into the locking pin 8 hole; the spring 6 is arranged in the locking pin sleeve 5 and sleeved on the locking pin 8, the locking pin 8 is provided with a flange along the circumferential direction, one end of the spring 6 abuts against the flange, and the other end abuts against the locking pin sleeve 5.

[0030] Preferably, a fixed connecting plate 7 which is externally mounted on the locking pin sleeve 5 is further provided between the locking pin sleeve 5 and the fixing member 9 .

[0031] Preferably, a brake handle 4 for rotating the guide sleeve 1 is provided on the circumference of the guide sleeve 1 , and the locking mechanism further comprises a sleeve 3 buckled on the guide sleeve 1 , and the sleeve 3 is provided with a through hole for passing the brake handle 4 .

[0032] Specifically, the guide sleeve 1 is fixedly connected to the locking pin 8 through the straight pin 2, so that the locking pin 8 follows the guide sleeve 1 for axial displacement; the connecting surfaces of the guide sleeve 1 and the locking pin sleeve 5 are inclined surfaces that match each other, and when the contact area between the two inclined surfaces is the largest, the distance between the center of the guide sleeve 1 and the center of the locking pin sleeve 5 is the shortest. At this time, the locking pin 8 passes through the locking pin sleeve 5 and is inserted into the locking pin 8 hole, which is the locked position; by rotating the guide sleeve 1, when the contact area between the two inclined surfaces is the smallest, the distance between the center of the guide sleeve 1 and the center of the locking pin sleeve 5 is the longest. At this time, the locking pin 8 is retracted into the locking pin sleeve 5, which is the unlocked position.

[0033] In this embodiment, a semicircular groove is provided on the connecting surface between the locking pin sleeve 5 and the guide sleeve 1, close to one end of the guide sleeve 1, and a semicircular protrusion matching the groove is provided at a position corresponding to the connecting surface between the guide sleeve 1 and the locking pin sleeve 5, so that when the locking pin 8 is in the unlocked position, there is a stable positioning structure between the guide sleeve 1 and the locking pin sleeve 5, and good stability can be ensured. The depth of the semicircular groove does not exceed 5 mm, so that under the external force of the operator, the locking pin 8 can be easily rotated from the unlocked position to the locked position by a brake wrench.

[0034] A locking method for a locking mechanism of a rotating base, using the above-mentioned locking mechanism, comprises the following steps:

[0035] Step 1: Install the locking mechanism on the fixed part 9 in the rotating base to be controlled, and reserve a locking pin 8 hole on the moving part 10 in the rotating base to match the locking pin 8;

[0036] Step 2: When the moving part 10 needs to be braked, the brake handle 4 is slowly rotated to the locking position, and under the action of the connecting surface of the guide sleeve 1 and the lock pin sleeve 5, the guide sleeve 1 and the lock pin 8 are driven to move toward the direction of the moving part 10, and under the action of the spring 6, the lock pin 8 falls into the lock pin 8 hole to achieve the braking of the moving part 10;

[0037] Step 3: When the moving part 10 needs to be unlocked, the brake handle 4 is slowly rotated to the unlocking position, and the locking pin 8 is received in the locking pin sleeve 5, thereby unlocking the moving part 10.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A locking mechanism for a rotating base, comprising a locking pin (8) and a locking pin sleeve (5) sleeved around the locking pin (8), the locking pin sleeve (5) being connected to a fixing member (9), the locking pin (8) being matched with a locking pin (8) hole provided on a moving member (10), characterized in that: It also comprises a guide sleeve (1) and a spring (6), the lock pin (8) being inserted into the lock pin sleeve (5), the guide sleeve (1) being arranged outside an end of the lock pin (8) away from the moving part (10) and being fixedly connected to the lock pin (8), one end of the guide sleeve (1) being in contact with the lock pin sleeve (5), and the connecting surfaces of the guide sleeve (1) and the lock pin sleeve (5) being inclined surfaces that match each other so that the rotation of the guide sleeve (1) drives the lock pin (8) to move in the lock pin sleeve (5), so that the lock pin (8) has an unlocking position in which it is received in the lock pin sleeve (5) and a locking position in which it is inserted into the lock pin (8) hole; The spring (6) is arranged inside the lock pin sleeve (5) and is externally mounted on the lock pin (8); the lock pin (8) is provided with a flange along the circumferential direction; one end of the spring (6) abuts against the flange, and the other end abuts against the lock pin sleeve (5).

2. A locking mechanism for a rotating base according to claim 1, characterized in that: A brake handle (4) for rotating the guide sleeve (1) is provided on the circumference of the guide sleeve (1).

3. A locking mechanism for a rotating base according to claim 2, characterized in that: It also comprises an outer sleeve (3) buckled on the guide sleeve (1), and the outer sleeve (3) is provided with a through hole for passing the brake handle (4).

4. The locking mechanism for a rotating base according to claim 1, characterized in that: A fixed connecting plate (7) which is sleeved around the lock pin sleeve (5) is also provided between the lock pin sleeve (5) and the fixing member (9).

5. A locking method for a locking mechanism of a rotating base, characterized in that: The locking mechanism according to any one of claims 1 to 4 is used, comprising the following steps: Step 1: Install the locking mechanism on a fixed part (9) in a rotating base to be controlled, and reserve a locking pin (8) hole on a moving part (10) in the rotating base to match the locking pin (8); Step 2: When the moving part (10) needs to be braked, the brake handle (4) is slowly rotated to the locking position, and under the action of the connecting surface between the guide sleeve (1) and the lock pin sleeve (5), the guide sleeve (1) and the lock pin (8) are driven to move in the direction of the moving part (10), and under the action of the spring (6), the lock pin (8) falls into the lock pin (8) hole, thereby achieving the braking of the moving part (10); Step 3: When the moving part (10) needs to be unlocked, the brake handle (4) is slowly rotated to the unlocking position, and the lock pin (8) is received in the lock pin sleeve (5), thereby unlocking the moving part (10).

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