CN222836210U - Plastic gear box with protective structure - Google Patents

Abstract

The utility model relates to the technical field of plastic gearboxes, and in particular to a plastic gearbox with a protective structure, including a gearbox housing, wherein the lower side of the gearbox housing is fixedly connected with two symmetrically distributed supporting feet. The utility model can limit the rotation of a rotating disk through the setting of a limit plate, and then guide the gear shaft to avoid the problem of centrifugal shaking when the gear shaft rotates at high speed, and protect the gear shaft. Under the deformation of the spring, the limit plate can always be in contact with the rotating disk to ensure the limiting effect of the limit plate. Through the setting of a sealing plate, the oil filling port can be blocked to avoid the problem of dust and other impurities invading the idle oil filling port, and the components inside the gearbox can be protected. The turntable can be pushed to drive the end rod to rotate to drive the sealing plate to deflect, and the oil filling port can be manually opened to facilitate the subsequent filling of lubricating grease.

Description

Plastic gear box with protective structure

Technical Field

The utility model relates to the technical field of plastic gear boxes, in particular to a plastic gear box with a protection structure.

Background

Plastic gearboxes are a type of gear transmission made of plastic material for transmitting power and controlling mechanical movements. Plastic gearboxes are typically composed of plastic gears, bearings, shafts and a housing. They may be used in a variety of applications including the fields of household appliances, automobiles, toys, medical devices, and the like.

The utility model provides a plastic gear box convenient to dismantle maintenance is published in patent grant publication number CN216519491U, includes main shell, curb plate and top cap, main shell includes casing and bottom plate, the up end at the bottom plate is installed to the casing, and casing and bottom plate integrated into one piece, the side plate is installed in the side of casing, and curb plate and casing sealed fixed connection, the top cap is installed at the head of curb plate, and top cap and curb plate perpendicular fixed connection, can be stable when guaranteeing that the user needs to use install the casing through the bottom plate and use, and simultaneously through set up the limiting plate on the casing symmetry and guarantee to cooperate the installation curb plate and use, the inside of stablizing through the clamping plate is convenient to insert the guide way, makes things convenient for the better mutual sealing connection of casing and curb plate, and after the curb plate is installed, the top cap is installed at the top of curb plate to the user just can be stable.

However, the existing plastic gear box also has certain defects, the existing plastic gear box adopts members such as bearings to assemble the gear shaft, and due to the influences of factors such as the length and the rotating speed of the gear shaft, the problem of slight shaking of the gear shaft and the problem of hard extrusion damage of the bearings can be caused, and the existing plastic gear box adopts a straight-through oil filling port to fill lubricating grease and the like, and due to the influences of impurities such as dust in the air, the problem that the idle oil filling port is easy to invade dust and the like is caused.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides a plastic gear box with a protective structure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a plastic gear case with protective structure, includes the gear case casing, the downside fixedly connected with two symmetric distribution's of gear case casing supporting legs, every the equal swing joint of horizontal part of supporting leg has the bolt, the front of gear case casing has the cap through the screw-mounting, the inside of cap is provided with the gear shaft, the upside of gear case casing is provided with the oiling mouth, be provided with protective mechanism jointly on cap, gear shaft and the oiling mouth.

In addition, the preferred structure is, protection machanism includes the rolling disc, the rolling disc has been cup jointed in the fixed outside of gear shaft, the positive fixedly connected with leading truck of cap, the horizontal part sliding sleeve of leading truck has moved the board, moving board and cap sliding connection, the vertical portion welding of leading truck has the spring, the other end and the moving board welding of spring, the inside fixedly connected with backup pad of moving board, the terminal surface fixedly connected with spacing piece that the backup pad is close to rolling disc one side, spacing piece and rolling disc contact, through the deformation effect of spring, can promote the moving board and drive the backup pad and remove, and then promote spacing piece and be in a tight state in top, rotate spacingly to the rolling disc, and then protect the processing to the gear shaft, avoid the centrifugal shake problem of gear shaft.

In addition, the preferred structure is, the inside fixedly connected with installation section of thick bamboo of oiling mouth, the inside rotation of installation section of thick bamboo is connected with the end pole, the end pole rotates with the oiling mouth and is connected, the back fixedly connected with carousel of end pole, the outside fixed sleeve of end pole has sealed dish, sealed dish rotates with the oiling mouth and is connected, the outside of end pole is provided with the torsional spring, through the setting of sealed dish, can carry out shutoff processing to idle oiling mouth, avoids the problem of impurity invasion such as dust, can push away the end pole and rotate to drive sealed dish and rotate, and then opens manually to the oiling mouth, the filling of follow-up lubricating grease of being convenient for uses.

In addition, the preferred structure is that the guide frame is provided with two, two the guide frame evenly distributed on the cap, through the setting of guide frame, can lead the movable plate to use.

In addition, the preferred structure is, the fixed surface of carousel is connected with four branches, four branch is annular array arrangement on the carousel, through the setting of branch, is convenient for promote the carousel and rotates the use.

In addition, the preferred structure is, the one end and the installation section of thick bamboo welding of torsional spring, the other end and the end pole welding of torsional spring, through the setting of torsional spring, can connect the end pole and use.

The utility model has the beneficial effects that the rotating disc can be rotated and limited through the arrangement of the limiting piece, the gear shaft is further guided, the problem of centrifugal shake generated when the gear shaft rotates at a high speed is avoided, the gear shaft is protected, the limiting piece can be always contacted with the rotating disc under the deformation action of the spring, so that the limiting effect of the limiting piece is ensured, the oil filling port can be plugged through the arrangement of the sealing disc, the problem that the idle oil filling port is invaded by impurities such as dust is avoided, the components and the like in the gear box are protected, the rotating disc can be pushed to drive the end rod to rotate, the sealing disc is driven to deflect, the oil filling port is manually opened, and the subsequent filling use of lubricating grease and the like is facilitated.

Drawings

FIG. 1 is a perspective view of the whole structure of a plastic gear case with a protective structure according to the present utility model;

FIG. 2 is a cross-sectional perspective view of the oil filling port of FIG. 1 of a plastic gear box with a protective structure according to the present utility model;

FIG. 3 is a perspective view of the protection mechanism of FIG. 1 of a plastic gear case with a protection structure according to the present utility model;

fig. 4 is a perspective view of the protection mechanism of fig. 2 with a plastic gear case with a protection structure according to the present utility model.

1, A gear box shell, 2, supporting legs, 3, bolts, 4, a shell cover, 5, a gear shaft, 6, an oil filling port, 7, a protection mechanism, 71, a rotating disc, 72, a guide frame, 73, a moving plate, 74, a spring, 75, a supporting plate, 76, a limiting plate, 77, a mounting cylinder, 78, an end rod, 79, a rotating disc, 790, a sealing disc, 791 and a torsion spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1, 2, 3 and 4, a plastic gear box with a protection structure comprises a gear box shell 1, two symmetrically distributed supporting legs 2 are fixedly connected to the lower side of the gear box shell 1, bolts 3 are movably connected to the horizontal portion of each supporting leg 2, a shell cover 4 is mounted on the front face of the gear box shell 1 through bolts, a gear shaft 5 is arranged in the shell cover 4, and an oil filling port 6 is arranged on the upper side of the gear box shell 1.

Referring to fig. 1, fig. 2, fig. 3, the protection mechanism 7 is jointly provided on the cap 4, the gear shaft 5 and the oil filling port 6, the protection mechanism 7 includes the rolling disc 71, the rolling disc 71 has been fixedly sleeved on the outside of the gear shaft 5, the guide frame 72 is fixedly connected with in the front of the cap 4, the guide frame 72 is provided with two, two guide frames 72 are evenly distributed on the cap 4, through the setting of the guide frame 72, the movable plate 73 can be guided for use, the movable plate 73 has been sleeved in the horizontal portion sliding of the guide frame 72, the movable plate 73 and the cap 4 sliding connection, the spring 74 has been welded on the vertical portion of the guide frame 72, the other end and the movable plate 73 of the spring 74 are welded, the inside fixedly connected with backup pad 75 of the movable plate 73, the end face fixedly connected with spacing piece 76 near one side of the rolling disc 71 is contacted with the rolling disc 71, through the deformation effect of the spring 74, the movable plate 73 can be pushed to drive the backup pad 75 to move, and then the spacing piece 76 is pushed to be in a tight state, the rolling limit is rotated to the rolling disc 71, and then the gear shaft 5 is protected and dithered.

Referring to fig. 1, fig. 2, fig. 4, the inside fixedly connected with installation section of thick bamboo 77 of oiling mouth 6, the inside rotation of installation section of thick bamboo 77 is connected with end pole 78, end pole 78 rotates with oiling mouth 6 to be connected, the back fixedly connected with carousel 79 of end pole 78, sealing disk 790 has been cup jointed to the outside of end pole 78, sealing disk 790 rotates with oiling mouth 6 to be connected, the outside of end pole 78 is provided with torsional spring 791, through the setting of sealing disk 790, can carry out shutoff processing to idle oiling mouth 6, avoid the problem of impurity invasion such as dust, can promote end pole 78 and rotate, in order to drive sealing disk 790 and rotate, and then open manually oiling mouth 6, the subsequent filling use of lubricating grease of being convenient for.

Referring to fig. 1, 2 and 4, four struts are fixedly connected to the surface of the turntable 79, are distributed in an annular array on the turntable 79, are convenient to push the turntable 79 to rotate for use through the arrangement of the struts, one end of the torsion spring 791 is welded with the mounting cylinder 77, the other end of the torsion spring 791 is welded with the end rod 78, and the end rod 78 can be connected for use through the arrangement of the torsion spring 791.

When the device is used, the idle oil filling port 6 can be protected through the arrangement of the sealing disc 790, the problem of invasion of impurities such as dust and the like is avoided, the turntable 79 can be pushed to rotate so as to drive the end rod 78 to rotate, the torsion spring 791 deforms, the sealing disc 790 is driven to rotate, the oil filling port 6 is further opened manually, and the device is convenient for operators to fill lubricating grease and the like;

When the gear shaft 5 rotates, the rotating disc 71 can be driven to rotate, so that the rotating disc 71 rotates along the surface of the limiting piece 76, the rotating disc 71 is limited under the action of the limiting piece 76, the gear shaft 5 is further rotated and limited, the centrifugal shaking problem of the gear shaft 5 is avoided, the gear shaft 5 is protected, the moving plate 73 can be pushed to drive the supporting plate 75 to move under the deformation action of the spring 74, and the limiting piece 76 is further pushed to be always in contact with the gear shaft 5, so that the good limiting effect of the limiting piece 76 is ensured.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a plastic gear case with protective structure, includes gear case casing (1), its characterized in that, the downside fixedly connected with of gear case casing (1) two symmetric distribution supporting legs (2), every equal swing joint of horizontal part of supporting legs (2) has bolt (3), the front of gear case casing (1) is through screw mounting cap (4), the inside of cap (4) is provided with gear shaft (5), the upside of gear case casing (1) is provided with oiling mouth (6), be provided with protection machanism (7) jointly on cap (4), gear shaft (5) and oiling mouth (6).

2. The plastic gear box with the protective structure according to claim 1, characterized in that the protective mechanism (7) comprises a rotating disc (71), the rotating disc (71) is fixedly sleeved on the outer side of the gear shaft (5), a guide frame (72) is fixedly connected to the front side of the shell cover (4), a moving plate (73) is slidably sleeved on the horizontal portion of the guide frame (72), the moving plate (73) is slidably connected with the shell cover (4), a spring (74) is welded on the vertical portion of the guide frame (72), the other end of the spring (74) is welded with the moving plate (73), a supporting plate (75) is fixedly connected to the inner side of the moving plate (73), a limiting plate (76) is fixedly connected to the end face, close to one side of the rotating disc (71), of the supporting plate (75), and the limiting plate (76) is in contact with the rotating disc (71).

3. The plastic gear box with the protection structure according to claim 1, characterized in that an installation cylinder (77) is fixedly connected to the inside of the oil filling port (6), an end rod (78) is rotatably connected to the inside of the installation cylinder (77), the end rod (78) is rotatably connected to the oil filling port (6), a rotary table (79) is fixedly connected to the back of the end rod (78), a sealing disc (790) is fixedly sleeved on the outer side of the end rod (78), the sealing disc (790) is rotatably connected to the oil filling port (6), and a torsion spring (791) is arranged on the outer side of the end rod (78).

4. A plastic gearbox with a protective structure according to claim 2, characterized in that two of the guide brackets (72) are provided, both of the guide brackets (72) being evenly distributed on the cover (4).

5. A plastic gear box with a protective structure according to claim 3, characterized in that the surface of the turntable (79) is fixedly connected with four struts, and the four struts are arranged in a ring array on the turntable (79).

6. A plastic gear box with a protective structure according to claim 3, characterized in that one end of the torsion spring (791) is welded to the mounting cylinder (77), and the other end of the torsion spring (791) is welded to the end bar (78).