Gearbox capable of preventing automatic downward sliding

Abstract

The utility model belongs to the technical field of gear boxes for children furniture, and particularly relates to an automatic gliding prevention gear box which comprises a gear box body, the gear box body comprises a shell, a gear shaft is arranged in the shell, a locking assembly playing a role in locking the gear shaft is arranged on the lower portion of one side in the shell, and the locking assembly is arranged on the lower portion of the other side in the shell. An unlocking assembly used for driving the locking assembly to conduct unlocking is arranged above the position, corresponding to the locking assembly, between the gear shaft and the shell. Through the cooperation of the unlocking assembly and the locking assembly, the gear shaft can be effectively unlocked and locked, the moving ball is further selected as the unlocking assembly, and the driving of the driving shaft to the moving ball can be effectively improved; the device is reasonable in design, simple in structure and convenient to machine, convenient unlocking and locking of the gear shaft are achieved, the possibility that the device automatically slides down in the using process of the device is reduced, the using functionality of the device is improved, and the using requirement is fully met.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear boxes for children's furniture, and in particular relates to an automatic sliding-down prevention gear box. Background Art

[0002] Children's furniture includes study tables, study chairs, children's beds, etc. In order to adapt to the changes in children's height, children's furniture is usually height-adjustable. This design can also greatly improve the adaptability of the product.

[0003] In the prior art, the height adjustment process of most children's furniture is achieved by using a gear box. However, the existing gear box tends to slide down automatically during use, which affects the stability of its position after height adjustment, and thus requires users to readjust the height every once in a while, which brings a lot of inconvenience to users and fails to meet usage needs. Utility Model Content

[0004] In response to the technical problems existing in the use of the above-mentioned gear box, the utility model proposes a gear box that prevents automatic sliding down, which has a reasonable design, a simple structure, and is easy to process. The gear box can be conveniently unlocked and locked with the cooperation of an unlocking component and a locking component, thereby reducing the possibility of the equipment automatically sliding down during use, improving the functionality of the device, and fully meeting the use requirements.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is an anti-automatic sliding gear box, including a gear box body, the gear box body including a shell, a gear shaft is arranged in the shell, a locking assembly for locking the gear shaft is arranged at the lower side of the shell, and an unlocking assembly for driving the locking assembly to unlock is arranged above the gear shaft corresponding to the locking assembly and the shell.

[0006] Preferably, the locking assembly includes a limit block for preventing the gear shaft from rotating.

[0007] Preferably, the housing is provided with a groove for accommodating the limit block to move up and down, and the gear shaft is provided with a through hole for use with the limit block.

[0008] Preferably, an elastic body for driving the limit block to cooperate with the through hole is arranged in the groove.

[0009] Preferably, the axis of the groove is colinear with the axis of the through hole.

[0010] Preferably, the unlocking assembly comprises an unlocking member for driving the locking assembly to unlock, and a driving shaft for driving the unlocking member to move is cooperatedly installed in the gear shaft.

[0011] Preferably, the position where the upper part of the unlocking member extends into the gear shaft is designed to be spherical or inclined.

[0012] Preferably, the unlocking member is a moving ball.

[0013] Preferably, the through hole is designed to be a tapered hole.

[0014] Preferably, the height of the unlocking member is equal to the height of the through hole.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] 1. The utility model provides an anti-automatic sliding gear box, which can realize the effective unlocking and locking actions of the gear shaft by setting the cooperation of the unlocking component and the locking component, and further selecting the moving ball as the unlocking component can effectively improve the driving of the driving shaft to the moving ball. The utility model solves the problem that the existing gear box still has the problem of automatic sliding during use, which causes the user to need to readjust it every period of time, causing many inconveniences to the user; the device is reasonably designed, simple in structure, and easy to process, and can realize convenient unlocking and locking of the gear shaft with the cooperation of the unlocking component and the locking component, thereby reducing the possibility of automatic sliding of the equipment during use, improving the functionality of the device, and fully meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model in an embodiment;

[0019] Figure 2 It is a half-section schematic diagram of a part of the structure in the embodiment of the utility model;

[0020] Figure 3 It is a partial exploded schematic diagram of the structure of the utility model in the embodiment;

[0021] In the above figures, 1, housing; 2, driving shaft; 3, gear shaft; 4, moving ball; 5, through hole; 6, limit block; 7, elastic body; 8, groove. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Examples, such as Figure 1 to Figure 3 As shown, an anti-automatic sliding gearbox includes a gearbox body, which includes a shell 1. A gear shaft 3 is arranged in the shell 1. In addition, a gear transmission shaft for cooperating with the gear shaft 3 is also arranged in the shell 1 to ensure that the gear shaft 3 can transmit power with the help of the gear transmission shaft when it rotates, thereby ensuring the effective implementation of the adjustment action; further, a locking assembly for locking the gear shaft 3 is arranged at the lower side of the shell 1 to reduce the possibility of automatic sliding, ensure stability, and improve the functionality of the device; an unlocking assembly for driving the locking assembly to unlock is arranged above the gear shaft 3 and the shell 1 corresponding to the locking assembly. On the one hand, the locking assembly is locked so that the gear shaft 3 can rotate; on the other hand, it can bear the driving force of the drive shaft 2 to realize the transmission of power and meet the use requirements.

[0025] In order to effectively ensure the implementation of the locking action, the locking assembly includes a limit block 6 for preventing the gear shaft 3 from rotating. In the present embodiment, the limit block 6 is set as a column. Of course, it can also be set in a cylindrical, triangular prism, quadrangular prism, polygonal prism or other irregular shapes that can prevent the gear shaft 3 from rotating. It can be adaptably set, which greatly improves the functionality of the device and meets the use requirements.

[0026] In order to provide convenient placement space for the installation of equipment components, a groove 8 is provided on the shell 1 for accommodating the limit block 6 to move up and down, and a through hole 5 is provided on the gear shaft 3 for use with the limit block 6. When the limit block 6 is inserted into the through hole 5 and the groove 8 at the same time, it can effectively prevent the gear shaft 3 from rotating.

[0027] In order to ensure the effective implementation of the locking action, an elastomer 7 is provided in the groove 8 for driving the limit block 6 to cooperate with the through hole 5, wherein the elastomer 7 is a spring, and can also be other components that can drive the limit block 6 to move and cooperate with the through hole 5, such as: rubber, airbag, elastic plastic, etc., so as to play a good pushing effect on the limit block 6 and ensure stability during the locking process.

[0028] In order to ensure the rationality of the equipment and improve its functionality, the axis of the groove 8 is collinear with the axis of the through hole 5. Further, the axial direction of the groove 8 is set along the moving direction of the limit block 6. The collinear setting of the axis of the groove 8 and the through hole 5 ensures the convenience of the coordination between the limit block 6 and the unlocking piece, thereby ensuring practicality.

[0029] In order to effectively unlock the locking assembly, the unlocking assembly includes an unlocking piece for driving the locking assembly to unlock, and a driving shaft 2 for driving the unlocking piece to move is installed in the gear shaft 3. That is to say, a pluggable driving shaft 2 is installed in the gear shaft 3. The rotation of the driving shaft 22 drives the gear shaft 3 to rotate, and then drives the gears in the gear box to rotate. At the same time, the unlocking process of the locking assembly can also be completed to ensure the use function.

[0030] In order to ensure the effective implementation of the locking and unlocking actions, the unlocking member is preferably a moving ball 4, but it can also be other components that can achieve this effect. For example, the part of the unlocking member extending into the gear shaft 3 is a spherical or inclined component. When it is an inclined surface, the height of the inclined surface gradually increases along the direction of insertion of the drive shaft 2. This can ensure that the moving ball 4 can be squeezed into the through hole 5 when the drive shaft 2 is inserted. The device is reasonably designed and has strong usage functions, which can fully meet the use requirements.

[0031] In order to fully ensure the rationality of the device, the through hole 5 is designed as a conical hole, and the diameter of the through hole 5 close to the inner end of the gear shaft 3 is smaller than the diameter of the moving ball 4, which can prevent the moving ball 4 from entering the inner hole of the gear shaft 3.

[0032] In order to effectively ensure the realization of the unlocking action, the height of the unlocking piece is equal to the height of the through hole 5. Under this design, when the drive shaft 2 is inserted into the gear shaft 3, the unlocking piece is squeezed into the through hole 5, and at the same time pushes the limit block 6 into the groove 8, so that the unlocking action is smoother and the use effect is better.

[0033] In the above process: when in use, the elastic body 7 is in an extended state, and the upper end of the limit block 6 is inserted into the through hole 5 to lock the drive shaft 2;

[0034] When the height of the children's home needs to be adjusted, the driving shaft 2 is inserted into the inner hole of the gear shaft 3, and the moving ball 4 is squeezed into the through hole 5. At the same time, the limit block 6 is squeezed out from the through hole 5, and the elastomer 7 is compressed at the same time, thereby unlocking the driving shaft 2, and the gear shaft 3 is driven to rotate through the driving shaft 2, thereby driving the gear box to work.

[0035] The utility model can realize the effective unlocking and locking actions of the gear shaft 3 by setting the cooperation of the unlocking component and the locking component, and further selects the moving ball 4 as the unlocking component, which can effectively improve the driving of the driving shaft 2 on the moving ball 4. The utility model solves the problem that the existing gear box still has the problem of automatic sliding down during use, which causes the user to need to readjust it every period of time, causing many inconveniences to the user; the device has a reasonable design, a simple structure, and is easy to process; and with the cooperation of the unlocking component and the locking component, it can realize convenient unlocking and locking of the gear shaft 3, reduces the possibility of automatic sliding of the equipment during use, improves the functionality of the device, and fully meets the use requirements.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An anti-automatic sliding gearbox, comprising a gearbox body, the gearbox body comprising a shell, a gear shaft is arranged in the shell, characterized in that: A locking assembly for locking the gear shaft is arranged at a lower side of one side of the housing, and an unlocking assembly for driving the locking assembly to unlock is arranged above the housing and between the gear shaft corresponding to the locking assembly.

2. The anti-automatic sliding gear box according to claim 1, characterized in that: The locking assembly includes a limit block for preventing the gear shaft from rotating.

3. The anti-automatic sliding gear box according to claim 2, characterized in that: The housing is provided with a groove for accommodating the limit block to move up and down, and the gear shaft is provided with a through hole used in conjunction with the limit block.

4. The anti-automatic sliding gear box according to claim 3, characterized in that: An elastic body is arranged in the groove and is used to drive the limiting block to cooperate with the through hole.

5. The anti-automatic sliding gear box according to claim 4, characterized in that: The axis of the groove is colinear with the axis of the through hole.

6. An anti-automatic slip gearbox according to any one of claims 3-5, characterized in that: The unlocking assembly comprises an unlocking member for driving the locking assembly to unlock, and a driving shaft for driving the unlocking member to move is mounted in the gear shaft.

7. The anti-automatic sliding gear box according to claim 6, characterized in that: The position where the upper part of the unlocking piece extends into the gear shaft is designed to be spherical or inclined.

8. The anti-automatic sliding gear box according to claim 7, characterized in that: The unlocking member is a moving ball.

9. The anti-automatic sliding gear box according to claim 7 or 8, characterized in that: The through hole is designed in a tapered hole shape.

10. The anti-automatic sliding gear box according to claim 9, characterized in that: The height of the unlocking piece is equal to the height of the through hole.

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