Eccentric wheel locking mechanism capable of preventing parts from falling off

Abstract

The utility model discloses an eccentric wheel locking mechanism capable of preventing parts from falling, which comprises an eccentric wheel core, an eccentric wheel rod connected onto the eccentric wheel core, a gasket arranged on the eccentric wheel rod, an eccentric wheel shaft sleeve seat, a handle seat, a spring, a nut and a safety ring, a positioning pin bottom plate connected onto the eccentric wheel shaft sleeve seat, and a handle connected onto the handle seat. A spring positioning pin is arranged on the handle. The mechanism has the characteristic of preventing parts from falling off, all the parts are physically limited in a certain area by the eccentric wheel rod and the safety ring, and the parts cannot fall off. The part, in contact with the target object, of the mechanism is the elastomer rubber, so that the locking target object cannot be damaged. An operator can unlock and operate the mechanism with one hand. In conclusion, the mechanism can achieve high safety and accord with human engineering.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking mechanism technical field, especially in preventing the eccentric wheel locking mechanism of falling part. BACKGROUND

[0002] Locking mechanism is a kind of common mechanical structure, is widely used in various scenes, such as car, ship, aircraft, commonly used in the scene that needs to keep an object in a stable state or fixed to another object. Numerous application scenarios have different conditions, which makes locking mechanism to derive a large number of forms.

[0003] In some environments, due to the precision characteristics and operation safety requirements of the equipment to be installed or the target to be locked. If the parts fall or knock during locking, it will cause great economic loss. Therefore, this situation requires the locking mechanism to consider the safety of the equipment and the reliability of the installation.

[0004] The current locking mechanism is combined by multiple parts or fixed by shaft pin, which may fall parts in the working area, has the risk of increasing damage to surrounding equipment, and cannot meet the current high standard requirements. Therefore, we specially propose an eccentric wheel locking mechanism for preventing falling parts. SUMMARY

[0005] In this paper, the equipment provided with the locking mechanism is called the installation equipment, and the object to be locked by the installation equipment is called the target object. The purpose of the utility model is to find a solution to the problems in the background art. In order to achieve the purpose, an eccentric wheel locking mechanism for preventing falling parts is provided, which avoids falling parts in and around the target object, and the part in contact with the target object is an elastomer rubber, which can achieve high safety.

[0006] The utility model adopts the scheme: an eccentric wheel locking mechanism for preventing falling parts, including eccentric wheel core, the eccentric wheel core is connected eccentric wheel rod, the eccentric wheel rod is set up gasket, eccentric wheel shaft sleeve seat, handle seat, spring, nut, safety ring, the eccentric wheel shaft sleeve seat is connected with the positioning pin bottom plate, the handle seat is connected with handle, the handle is set up spring positioning pin.

[0007] Optimized, the eccentric wheel core is provided with a crank slot, and the eccentric wheel rod is provided with a crank, which are interference fit, to ensure that the eccentric wheel core and the eccentric wheel rod are connected firmly.

[0008] Optimized, brass gasket is arranged between the eccentric wheel core and the eccentric wheel shaft sleeve seat to reduce friction.

[0009] Optimized, the eccentric wheel rod is provided with a flat shaft, and the handle seat is provided with a flat hole, which are gap fit, and can provide torsional force.

[0010] Optimized, the eccentric shaft is provided with a circular hole, and the safety ring passes through the circular hole, so that the whole mechanism cannot fall parts.

[0011] Optimized, the eccentric core is provided with a high-temperature-resistant elastic rubber, so that the rubber is prevented from aging too fast.

[0012] Optimized, the spring is provided with a gasket at both ends, pre-tightening force is provided, gaps between parts are eliminated, and stable rotation of the handle is ensured.

[0013] Optimized, the handle is provided with a handle seat, and the handle is provided with a handle seat.

[0014] Optimized, the positioning pin bottom plate is provided with limiting holes at both ends, so that the handle cannot rotate out of the working area.

[0015] The above scheme has at least one of the following beneficial effects:

[0016] 1. The utility model has the characteristics of preventing parts from falling, and all parts are physically limited in a certain area by the eccentric rod and the safety ring, so that the parts cannot fall.

[0017] 2. The utility model has the characteristics of simple structure, light weight and convenient operation.

[0018] 3. The utility model has the characteristics of simple structure, light weight and convenient operation.

[0019] 4. The utility model is provided with a spring positioning pin, and the handle is automatically locked after being rotated to a set position, and if it is desired to continue to rotate, the spring positioning pin needs to be operated to be unlocked, so that the handle cannot be accidentally unlocked due to human factors.

[0020] 5. The utility model has the characteristics of simple structure, light weight and convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described in combination with the drawings and examples:

[0022] Figure 1 It is a whole mechanism schematic view of the eccentric wheel locking mechanism for preventing parts from falling of the utility model.

[0023] Figure 2 It is an exploded view of the eccentric wheel locking mechanism for preventing parts from falling of the utility model.

[0024] Figure 3 It is a schematic view of the eccentric core part of the eccentric wheel locking mechanism for preventing parts from falling of the utility model.

[0025] Figure 4 Figure 1 is a schematic diagram of the installation of the eccentric wheel locking mechanism for preventing falling parts of the utility model.

[0026] Figure 5 Figure 2 is a schematic diagram of the locking principle of the eccentric wheel locking mechanism for preventing falling parts of the utility model.

[0027] Legend:

[0028] 1 - eccentric wheel core; 2 - eccentric wheel rubber ring; 3 - eccentric wheel rod; 4 - copper gasket; 5 - eccentric wheel shaft sleeve seat; 6 - gasket; 7 - handle seat; 8 - spring; 9 - nut; 10 - handle; 11 - positioning pin bottom plate; 12 - spring positioning pin; 13 - screw; 14 - safety ring. Specific implementation

[0029] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0030] Reference Figure 1 , 2 , 3, 4, 5, the utility model embodiment provides an eccentric wheel locking mechanism for preventing falling parts, which comprises an eccentric wheel core 1, the eccentric wheel core 1 is wrapped with an eccentric wheel rubber ring 2, the eccentric wheel rod 3 is sequentially sleeved with the eccentric wheel core 1, a copper gasket 4, an eccentric wheel shaft sleeve seat 5, a gasket 6, a handle seat 7, a gasket 6, a spring 8, a gasket 6 and a nut 9, the eccentric wheel shaft sleeve seat 5 is connected with a positioning pin bottom plate 11 through a screw 13, a handle 10 is connected with the handle seat 7 through the screw 13, the spring positioning pin 12 is arranged on the handle 10, and the safety ring 14 passes through the round hole on the eccentric wheel rod 3.

[0031] In the embodiment, the safety ring 14 refers to a circular ring that keeps a closed circle.

[0032] In the embodiment, the crank slot of the eccentric wheel core 1 and the crank of the eccentric wheel rod 3 are interference fit, so as to ensure that the eccentric wheel core 1 and the eccentric wheel rod 3 are connected firmly. The other end of the eccentric wheel rod 3 is provided with the safety ring 14, so as to ensure that the parts involved between the crank and the safety ring, including the crank and the safety ring itself, cannot fall from the direction of the crank or the direction of the safety ring on the premise that they are not physically damaged, so as to avoid falling parts from the locking mechanism, including loosening of bolts or other conditions.

[0033] In the embodiment, the eccentric wheel rod 3 is provided with a flat shaft, and the handle seat 7 is provided with a flat hole, and the two are gap fit, which can provide good rotation torque.

[0034] The spring 8 provides elastic support for the nut 9, which is connected to the eccentric rod 3, so as to ensure that the eccentric core 1 is pressed on the eccentric sleeve seat 5.

[0035] The positioning pin bottom plate 11 is provided with a slot hole, which is used as an unlocking position and a locking position of the locking mechanism, and the spring positioning pin 12 is inserted into the slot hole. The screws 13 at both ends are used as a limiting position of the locking mechanism, so as to ensure that the working stroke Δ of the eccentric wheel is at the maximum position when the operator rotates the handle 10 to the working position. The spring positioning pin 12 is arranged at the lower position of the handle 10, so that the operator can rotate the handle 10 with one hand and hook the pull ring of the spring positioning pin 12 with the fingers to unlock the positioning pin.

[0036] When the operator places the installation equipment in place, the locking mechanism is in the unlocking position. After the installation equipment is placed in place, the operator removes the locking state of the unlocking position of the locking mechanism by pulling the pull ring of the spring positioning pin 12, rotates the handle 10 to drive the eccentric wheel to rotate, and when the eccentric wheel rotates to the locking position, the spring striking column of the spring positioning pin 12 is automatically popped out and falls into the slot hole on the positioning pin bottom plate 11 to complete the locking of the mechanism. At this time, the installation equipment is locked on the target object.

[0037] Working principle: the center of the eccentric core 1 is eccentric to the rotation center of the eccentric rod 3, and when the eccentric rod 3 is rotated, the distance between the center of the eccentric core 1 and the target object changes. Figure 5 In the figure, Δ is the working stroke, and the eccentric rubber ring 2 gradually contacts the surface of the target object by rotating the eccentric rod 3. When the eccentric rod 3 continues to rotate to the locking position, the value of Δ reaches the maximum, the eccentric rubber ring 2 is compressed and generates pressure on the target object. When external force is applied to the installation equipment to move the installation equipment, the pressure between the eccentric rubber ring 2 and the target object generates static friction force to prevent the installation equipment from moving, so that the installation equipment can be locked on the target object.

[0038] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A cam lock mechanism for preventing the falling of a component, characterized by: The mechanism comprises an eccentric core, an eccentric rubber ring wrapped on the eccentric core and an eccentric rod connected to the eccentric core, a gasket, an eccentric shaft sleeve seat, a handle seat, a spring, a nut and a safety ring arranged on the eccentric rod, a positioning pin bottom plate connected to the eccentric shaft sleeve seat, a handle connected to the handle seat and a spring positioning pin arranged on the handle.

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