Fastening device for power lock

Abstract

The utility model relates to a fastening device for a power lock, the fastening device comprises a shell, a cover body, a driving shaft and at least two output shafts, the shell comprises at least two assembly holes, the cover body is detachably connected to the shell, the cover body and the shell jointly define a containing cavity, a mounting hole is formed in the cover body, a first operation part is formed at one end of the driving shaft, and a second operation part is formed at the other end of the driving shaft. A first operation part is formed at one end of each output shaft, a first transmission part is formed at the other end of each output shaft, penetrates through the corresponding mounting hole and extends in the direction away from the shell, the first transmission parts are located in the containing cavities, a second operation part is formed at one end of each output shaft, and a second transmission part is formed at the other end of each output shaft and penetrates through the corresponding assembling hole and extends in the direction away from the cover body; the second transmission part is located in the containing cavity and is in transmission connection with the first transmission part. According to the technical scheme provided by the invention, the second operation part can be driven to rotate by rotating the first operation part, so that multiple bolts of the power lock can be screwed at the same time, and the multiple bolts can be stressed at the same time and are uniformly stressed.

Description

Technical Field

[0001] The present disclosure relates to the field of power lock technology and equipment, and in particular, to a fastening device for a power lock. Background Art

[0002] The power lock is a device that connects the motor output shaft and the load shaft hole to achieve power transmission. The power lock is driven by a locking bolt to drive an expansion mechanism to fill the gap between the motor output shaft and the shaft hole to form a tight connection.

[0003] The tightening sequence and tightening force of the locking bolts directly affect the uniformity of the expansion force of the power lock. If the force is uneven, it will affect the smoothness of the force transmission between the motor output shaft and the load. Utility Model Content

[0004] The purpose of the present disclosure is to provide a fastening device for a power lock, which can force the locking bolts of the power lock to be locked at the same time, so as to at least partially solve the above technical problems.

[0005] In order to achieve the above object, the present disclosure provides a fastening device for a power lock, comprising:

[0006] A housing including at least two assembly holes;

[0007] A cover body, detachably connected to the shell and forming a receiving cavity together with the shell, and a mounting hole is formed on the cover body;

[0008] a driving shaft, wherein a first operating portion is formed at one end of the driving shaft and a first transmission portion is formed at the other end, the first operating portion passes through the mounting hole and extends in a direction away from the housing, and the first transmission portion is located in the accommodating cavity; and

[0009] At least two output shafts, each of which has a second operating part formed at one end and a second transmission part formed at the other end, the second operating part passes through the assembly hole and extends in a direction away from the cover body, the second transmission part is located in the accommodating cavity and is connected to the first transmission part in transmission, so that when the first operating part is rotated, the second operating part can rotate synchronously.

[0010] Optionally, the first transmission part is configured as a driving gear, and the second transmission part is configured as a driven gear meshing with the driving gear.

[0011] Optionally, the number of the assembly holes is six, and the six assembly holes are arranged at intervals along the circumference of the shell; the number of the output shafts is six, and the six output shafts correspond to the six assembly holes one by one.

[0012] Optionally, the mounting hole is coaxially arranged with the cover body, and the six assembly holes are spaced apart around the mounting hole.

[0013] Optionally, the second operating portion is configured as a hexagonal prism.

[0014] Optionally, the first operating portion is configured as a triangular prism.

[0015] Optionally, the cover body includes a first mounting portion, and the first mounting portion cooperates with the assembly hole so that the output shaft can be rotatably engaged with the housing and the cover body.

[0016] Optionally, the shell includes a second mounting portion, and the second mounting portion cooperates with the mounting hole, so that the drive shaft can be rotatably engaged with the shell and the cover body.

[0017] Optionally, a mating portion is formed on the inner side wall of the shell, and the cover body includes a third mounting portion for mating with the mating portion, and the mating portion cooperates with the third mounting portion to connect the shell and the cover body.

[0018] Optionally, the matching portion includes a threaded hole, the third mounting portion includes a through hole, and the through hole and the threaded hole are fixedly connected by bolts.

[0019] Through the above technical solution, the first operating part of the drive shaft is provided to facilitate manual or mechanical rotation of the drive shaft, so that the first transmission part located in the accommodating cavity can drive the second transmission part to rotate, and the number of output shafts can be adjusted accordingly according to the number of mounting holes of the shell, so that a single drive shaft can drive at least two output shafts to rotate synchronously; when working, at least two output shafts are matched in the bolt holes of multiple locking bolts of the power lock, and the drive shaft is rotated, and multiple output shafts synchronously drive the locking bolts to lock. Therefore, the fastening device provided by the present disclosure can tighten at least two locking bolts at the same time, so that the force of at least two locking bolts is uniform, and the expansion force balance of the power lock is achieved, which is safer and more reliable.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 is a schematic diagram of the overall structure of a fastening device provided in an exemplary embodiment of the present disclosure;

[0023] Figure 2is a schematic diagram of the overall structure of a fastening device provided in an exemplary embodiment of the present disclosure;

[0024] Figure 3 is a schematic structural diagram of a cover body provided in an exemplary embodiment of the present disclosure;

[0025] Figure 4 is a schematic structural diagram of a housing provided in an exemplary embodiment of the present disclosure;

[0026] Figure 5 is a front view of a drive shaft provided in an exemplary embodiment of the present disclosure;

[0027] Figure 6 is a side view of a drive shaft provided in an exemplary embodiment of the present disclosure;

[0028] Figure 7 is a front view of an output shaft provided in an exemplary embodiment of the present disclosure;

[0029] Figure 8 is a side view of an output shaft provided in an exemplary embodiment of the present disclosure.

[0030] Description of Reference Numerals

[0031] 1. housing; 110. assembly hole; 120. matching portion; 121. threaded hole; 130. second mounting portion;

[0032] 2. Cover body; 210. Mounting hole; 220. Third mounting portion; 221. Through hole; 230. First mounting portion;

[0033] 3. driving shaft; 310. first operating part; 320. first transmission part;

[0034] 4. Output shaft; 410. Second operating part; 420. Second transmission part. DETAILED DESCRIPTION

[0035] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0036] In the present disclosure, unless otherwise specified, "inside" and "outside" refer to the inside and outside of the contour of the corresponding component. Furthermore, the terms "first" and "second" used in the present disclosure are to distinguish one element from another and have no order or importance. In addition, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0037] according to Figures 1 to 8As shown, an embodiment of the present disclosure provides a fastening device for a power lock, which fastening device may include a shell 1, a cover 2, a drive shaft 3 and at least two output shafts 4. The shell 1 may include at least two assembly holes 110. The cover 2 is detachably connected to the shell 1 and together with the shell 1, forms a receiving cavity. A mounting hole 210 is formed on the cover 2. A first operating portion 310 is formed at one end of the drive shaft 3, and a first transmission portion 320 is formed at the other end. The first operating portion 310 passes through the mounting hole 210 and extends in a direction away from the shell 1. The first transmission portion 320 is located in the receiving cavity. A second operating portion 410 is formed at one end of each output shaft 4, and a second operating portion 410 is formed at the other end. There is a second transmission part 420, the second operating part 410 passes through the assembly hole 110 and extends in the direction away from the cover body 2, the second transmission part 420 is located in the accommodating cavity, and is connected to the first transmission part 320 in transmission, so that when the first operating part 310 is rotated, the second operating part 410 can rotate synchronously. In this way, when the power lock needs to be locked, the second operating part 410 is matched with the bolt of the power lock, and the first operating part 310 is rotated by a rotating tool or manpower. The first transmission part 320 located in the accommodating cavity is subjected to the torque force from the first operating part 310, driving the second transmission part 420 to rotate, so that the second operating part 410 drives the bolt of the power lock to tighten.

[0038] Through the above technical solution, the housing 1 includes at least two assembly holes 110, and the number of output shafts 4 is at least two. In this way, during assembly, the number of output shafts 4 and assembly holes 110 can be adjusted according to actual needs to adapt to the number of bolts of the power lock, so as to facilitate the one-to-one correspondence between the output shaft 4 and the bolts of the power lock, so as to achieve simultaneous and balanced force on multiple bolts, which is more reliable and stable.

[0039] The cover 2 and the housing 1 may be constructed in a circular structure, or in other adaptive structures, such as a rectangular structure, but the present disclosure is not limited thereto.

[0040] Of course, the first operating part 310 may also include a rotating handle to facilitate the operator to rotate the first operating part 310. The present disclosure is not limited thereto, and those skilled in the art may make adaptive adjustments according to actual needs.

[0041] In some possible implementations, for example, referring to Figure 2 As shown, the first transmission part 320 can be configured as a driving gear, and the second transmission part 420 can be configured as a driven gear meshing with the driving gear. Through the gear transmission method, the transmission efficiency is higher and the reliability is better. It should be noted that in other embodiments, one of the first transmission part 320 and the second transmission part 420 can be configured as a worm gear, and the other can be configured as a worm, which can also achieve power transmission.

[0042] In order to simultaneously lock the bolts of multiple power locks, in some practicable ways, for example, referring to Figure 2 and Figure 4 As shown, the number of the assembly holes 110 may be six, and the six assembly holes 110 are arranged at intervals along the circumference of the housing 1 ; the number of the output shafts 4 may be six, and the six output shafts 4 correspond to the six assembly holes 110 one by one.

[0043] The number of the assembly holes 110 and the output shaft 4 is limited in this disclosure only for this disclosure, and the number of the assembly holes 110 and the output shaft 4 should correspond to the number of the bolts of the power lock. For example, if the number of the bolts of the power lock is four, the number of the assembly holes 110 and the output shaft 4 is also four. This disclosure does not make specific limitations on this, and those skilled in the art can make adaptive adjustments according to the actual needs.

[0044] In some possible implementations, for example, referring to Figures 2 to 4 As shown, the mounting hole 210 and the cover body 2 can be coaxially arranged, and the six assembly holes 110 can be arranged at intervals around the mounting hole 210. In this way, the drive shaft 3 matched with the mounting hole 210 is located at the center of the shell 1, and the output shaft 4 matched with the assembly hole 110 is arranged at intervals around the drive shaft 3, so that a single drive shaft 3 drives multiple output shafts 4, which is more convenient.

[0045] In some possible implementations, for example, referring to Figure 7 and Figure 8 As shown, the second operating portion 410 can be constructed as a hexagonal prism so that it can be inserted into the nut hole of the bolt of the power lock, so that the torque can be transmitted and act on the bolt to achieve locking.

[0046] It is understandable that the second operating portion 410 can also be configured as a matching hole so that the matching hole can accommodate the nut of the bolt of the power lock, and the shape of the matching hole can be consistent with the shape of the nut, for example, it can also be configured as a hexagonal prism. The present disclosure does not make specific restrictions on this, as long as the function of tightening the bolt can be achieved.

[0047] In some possible implementations, for example, referring to Figure 5 and Figure 6 As shown, the first operating portion 310 may be configured as a triangular prism.

[0048] The structural limitation of the first operating part 310 in the present disclosure is only for the present disclosure, and the structure of the first operating part 310 can correspond to the structure of the rotating tool. For example, when the rotating tool is a manual wrench, the first operating part 310 can also be configured as a hexagonal prism. The present disclosure does not make any specific limitation on this, as long as it can realize the function of facilitating the operator to screw by rotating the tool or directly by manpower.

[0049] In some possible implementations, for example, referring to Figure 2 and Figure 3 As shown, the cover body 2 may include a first mounting portion 230, and the first mounting portion 230 cooperates with the assembly hole 110 so that the output shaft 4 can rotate with the housing 1 and the cover body 2. It can be understood that the second transmission portion 420 of the output shaft 4 is located between the first mounting portion 230 and the assembly hole 110, and the side of the second transmission portion 420 away from the assembly hole 110 can cooperate with the first mounting portion 230 to achieve a limiting function for the second transmission portion 420, preventing the second transmission portion 420 from being offset during the rotation process. For example, the second transmission portion 420 may include a matching portion that cooperates with the first mounting portion 230.

[0050] In some possible implementations, for example, referring to Figure 2 and Figure 4 As shown, the housing 1 may include a second mounting portion 130, and the second mounting portion 130 cooperates with the mounting hole 210, so that the drive shaft 3 can rotate with the housing 1 and the cover 2. It can be understood that the first transmission portion 320 of the drive shaft 3 is located between the second mounting portion 130 and the mounting hole 210, and the side of the first transmission portion 320 away from the mounting hole 210 can cooperate with the second mounting portion 130 to achieve a limiting function for the first transmission portion 320, and prevent the first transmission portion 320 from being offset during the rotation process. For example, the first transmission portion 320 may also include a matching portion that cooperates with the second mounting portion 130.

[0051] The first mounting portion 230 and the second mounting portion 130 can be configured as mounting grooves so that the matching portions of the first transmission portion 320 and the second transmission portion 420 can be plugged into the mounting grooves to achieve the above functions. This disclosure does not specifically limit this, and those skilled in the art can make adaptive adjustments according to actual needs.

[0052] In some possible implementations, for example, referring to Figure 1 , Figure 3 and Figure 4 As shown, the inner wall of the shell 1 may be formed with a mating portion 120, and the cover body 2 may include a third mounting portion 220 for mating with the mating portion 120, and the mating portion 120 cooperates with the third mounting portion 220 to connect the shell 1 with the cover body 2, so as to protect the first transmission portion 320 of the drive shaft 3 and the second transmission portion 420 of the output shaft 4 in the accommodating cavity of the shell 1.

[0053] Optionally, the mating portion 120 may include a threaded hole 121, and the third mounting portion 220 may include a through hole 221. The through hole 221 and the threaded hole 121 may be fixedly connected by bolts. In this way, the shell 1 and the cover body 2 can be detachably mounted, thereby facilitating maintenance of the first transmission portion 320 and the second transmission portion 420 in the shell 1.

[0054] In some other practicable embodiments, the matching portion 120 may also include a through hole 221 and a limiting portion disposed in the through hole, the limiting portion being connected to the inner side wall of the through hole 221 via an elastic member, a pressing portion being disposed on the side of the elastic member away from the limiting portion, the pressing portion being located on the outer side wall of the housing 1, the third mounting portion 220 may include a clamping portion, the clamping portion being able to lock with the limiting portion, during assembly, first insert the third mounting portion 220 into the through hole 221 of the matching portion 120, press the pressing portion, so that the limiting portion contacts with the clamping portion and locks with the clamping portion; during disassembly, press the pressing portion again, the limiting portion is moved away from the clamping portion to be unlocked. The limiting portion and the clamping portion may be constructed as mutually matching hook-shaped structures.

[0055] It should be noted that the structural limitations of the mating portion 120 and the third mounting portion 220 disclosed in the present disclosure are only for the present disclosure, and those skilled in the art can make adaptive adjustments according to actual needs as long as the function of fixing the shell 1 and the cover 2 can be achieved.

[0056] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0057] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0058] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A fastening device for a power lock, characterized in that: include: A housing including at least two assembly holes; A cover body, detachably connected to the shell and forming a receiving cavity together with the shell, and a mounting hole is formed on the cover body; a driving shaft, wherein a first operating portion is formed at one end of the driving shaft and a first transmission portion is formed at the other end, the first operating portion passes through the mounting hole and extends in a direction away from the housing, and the first transmission portion is located in the accommodating cavity; and At least two output shafts, each of which has a second operating part formed at one end and a second transmission part formed at the other end, the second operating part passes through the assembly hole and extends in a direction away from the cover body, the second transmission part is located in the accommodating cavity and is connected to the first transmission part in transmission, so that when the first operating part is rotated, the second operating part can rotate synchronously.

2. The fastening device for a power lock according to claim 1, characterized in that: The first transmission part is configured as a driving gear, and the second transmission part is configured as a driven gear meshing with the driving gear.

3. The fastening device for a power lock according to claim 1, characterized in that: The number of the assembly holes is six, and the six assembly holes are arranged at intervals along the circumference of the shell; The number of the output shafts is six, and the six output shafts correspond to the six assembly holes one by one.

4. The fastening device for a power lock according to claim 2, characterized in that: The mounting hole is coaxially arranged with the cover body, and the six assembly holes are arranged around the mounting hole at intervals.

5. The fastening device for a power lock according to claim 1, characterized in that: The second operating portion is configured as a hexagonal prism.

6. The fastening device for a power lock according to claim 1, characterized in that: The first operating portion is configured as a triangular prism.

7. The fastening device for a power lock according to any one of claims 1 to 6, characterized in that: The cover body includes a first mounting portion, and the first mounting portion cooperates with the assembly hole so that the output shaft can be rotatably matched with the housing and the cover body.

8. The fastening device for a power lock according to claim 7, characterized in that: The shell includes a second mounting portion, and the second mounting portion cooperates with the mounting hole so that the drive shaft can be rotatably matched with the shell and the cover.

9. The fastening device for a power lock according to claim 1, characterized in that: The inner side wall of the shell is formed with a matching portion, and the cover body includes a third mounting portion for matching with the matching portion, and the matching portion matches with the third mounting portion to connect the shell and the cover body.

10. The fastening device for a power lock according to claim 9, characterized in that: The matching portion includes a threaded hole, and the third mounting portion includes a through hole, and the through hole is fixedly connected to the threaded hole by a bolt.

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