Handle assembly of compact shelving

Abstract

The present invention relates to a crank assembly of a compact shelving system, comprising a crank handle and a crank handle transmission mechanism, wherein the crank handle transmission mechanism comprises a fixed shaft, a sleeve, a sun gear and at least one planetary gear, wherein the sleeve and the sun gear can be rotatably sleeved on the fixed shaft, a planetary frame is provided at one end of the sleeve, the planetary gear is rotatably connected to the planetary frame, an output gear is provided at the other end of the sleeve, one end of the fixed shaft is rotatably connected to the crank handle, an internal gear is provided on the crank handle, the planetary gear is meshed with the sun gear and the internal gear at the same time, and a circumferential limiting mechanism is provided between the sun gear and the fixed shaft, so that the rotatable angle of the sun gear relative to the fixed shaft is less than 360°. The advantages of the present invention are: the crank handle transmission mechanism adopts an internal gear, a sun gear, a planetary gear and a circumferential limiting mechanism between the sun gear and the fixed shaft to realize the clutch function between the crank handle and the sleeve, thereby avoiding mutual collision between various metal parts, reducing working noise, and effectively improving the user's comfort.

Description

Technical Field

[0001] The invention relates to the technical field of cabinets, in particular to a handle assembly of a compact rack. Background Art

[0002] With the rapid development of modern society, information and data are constantly increasing. While it brings convenience to people's use and information exchange, it also brings new problems for storage, access and management. The emergence of compact shelving (also known as compact cabinet) has solved this problem very well. The compact shelving has the advantages of large storage capacity, easy use, space saving, and convenient management. It is used by many large enterprises and government agencies. There are many types of compact shelving on the market. According to their different operating methods, they are divided into: hand-cranked compact shelving, electric compact shelving and intelligent compact shelving. Among them, hand-cranked compact shelving has the advantages of low price and stable performance and is widely used by people. The crank transmission mechanism of the existing compact shelving crank assembly generally adopts a pair of clutch automatic hooks and a matching structure of the latch set on the crank handle to realize the clutch function between the crank handle and the shaft sleeve, such as the "a mobile rack multi-handle circular crank assembly" disclosed in the utility model patent with the authorization announcement number "CN208634299 U". However, since the latching teeth, clutch automatic hook and crank handle in the above-mentioned crank transmission mechanism are usually made of metal materials, these metal parts will produce loud noises due to collision with each other during use, which greatly affects the user's comfort. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a handle assembly for a compact shelving system with low working noise, thereby greatly improving the comfort of users.

[0004] In order to solve the above technical problems, the present invention provides a crank assembly of a compact shelving with the following structure: it includes a crank handle and a crank transmission mechanism, wherein the crank transmission mechanism includes a fixed shaft, a sleeve, a sun gear and at least one planetary gear, the sleeve and the sun gear are both rotatably sleeved on the fixed shaft, a planetary carrier is provided at one end of the sleeve, the planetary gear is rotatably connected to the planetary carrier, an output gear is provided at the other end of the sleeve, one end of the fixed shaft is rotatably connected to the crank handle, the crank handle is provided with an internal gear, the planetary gear is meshed with the sun gear and the internal gear at the same time, and a circumferential limiting mechanism is provided between the sun gear and the fixed shaft, so that the rotatable angle of the sun gear relative to the fixed shaft is less than 360°.

[0005] After adopting the above structure, compared with the prior art, the present invention has the following advantages: the hand crank transmission mechanism of the hand crank assembly of the compact shelving of the present invention adopts an internal gear, a sun gear, a planetary gear, and a circumferential limiting mechanism is provided between the sun gear and the fixed shaft to realize the clutch function between the crank handle and the shaft sleeve, thereby avoiding mutual collision between various metal parts, and thus greatly reducing the working noise of the hand crank assembly of the compact shelving of the present invention, and effectively improving the user comfort.

[0006] The crank assembly of the compact shelving described in the present invention is characterized in that a power supply, a control member and an electromagnetic lock are provided on the crank handle, the control member is electrically connected to the power supply, and the electromagnetic lock is electrically connected to the control member, and when the telescopic rod of the electromagnetic lock is controlled to extend outward by the control member, one end of the telescopic rod of the electromagnetic lock is located on the moving path of the planetary gear.

[0007] The above structure can not only realize the rotation locking / unlocking of the crank handle, so that the crank handle assembly of the compact shelving of the present invention has better use safety, but also is simple to operate and has low working noise, so as to effectively ensure the user's comfort.

[0008] The crank assembly of the compact shelving described in the present invention, wherein the power source is a rechargeable battery, the crank handle is provided with a charging interface and a power control board with a charging circuit, and the power source, the charging interface and the operating element are all electrically connected to the power control board.

[0009] The above structure can effectively avoid the situation of power shortage, thereby effectively ensuring the long-term sustainable use of the handle assembly of the compact shelving of the present invention.

[0010] The handle assembly of the compact shelving described in the present invention, wherein the control component includes a control panel and a control circuit board, the control panel is connected to the handle, the control circuit board is connected to the control panel, and the power supply and the control panel are both electrically connected to the control circuit board.

[0011] The above-mentioned control member not only facilitates the control of the electromagnetic lock handle transmission mechanism, but the handle assembly of the compact shelving of the present invention can also set an unlocking password for the electromagnetic lock through the control panel and the control circuit board, thereby making the use of the handle assembly of the compact shelving of the present invention safer and more reliable.

[0012] The handle assembly of the compact shelving described in the present invention, wherein the circumferential limiting mechanism includes an inner stopper and an outer stopper, wherein the inner stopper is arranged on the sun gear, and the outer stopper is arranged on the outer peripheral wall of the fixed shaft and is located on the moving path of the inner stopper.

[0013] The above-mentioned circumferential limiting mechanism has a simple and compact structure and low noise in use, which not only facilitates the design and manufacture of the handle assembly of the compact shelving of the present invention, but also can effectively control the working noise of the handle assembly of the compact shelving of the present invention, thereby improving the user's comfort.

[0014] The handle assembly of the compact shelving described in the present invention comprises two planetary gears, which are evenly distributed in the circumferential direction.

[0015] The above structure can make the operation of the crank transmission mechanism more stable, which can not only further reduce the working noise of the crank assembly of the compact shelving of the present invention and improve the user's comfort, but also greatly increase the service life of the crank assembly of the compact shelving of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front side perspective structural diagram of the handle assembly of the compact shelving of the present invention;

[0017] Figure 2 It is a rear side perspective structural diagram of a handle assembly of a compact shelving system of the present invention;

[0018] Figure 3 It is an exploded view of the crank handle in the crank handle assembly of the compact shelving of the present invention;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the control member in the handle assembly of the compact shelving of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the main body of the crank handle in the crank handle assembly of the compact shelving of the present invention;

[0021] Figure 6 is along Figure 1 Sectional view along line AA;

[0022] Figure 7 is along Figure 1 Sectional view along the midline BB;

[0023] Figure 8 is along Figure 1 Sectional view of the mid-CC line;

[0024] Fig. 9 is along Figure 8 Sectional view along the mid-DD line;

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the crank transmission mechanism in the crank assembly of the compact shelving of the present invention;

[0026] Fig.11 It is an exploded view of the handle transmission mechanism in the handle assembly of the compact shelving of the present invention.

[0027] Description of reference numerals: 1. crank; 2. handle; 3. power supply; 4. control member; 5. body; 6. cover plate; 7. fixing seat; 8. power supply installation cavity; 9. fixing cavity; 10. motor; 11. driving gear; 12. transmission gear; 13. rotating shaft; 14. first bearing; 15. annular groove; 16. charging interface; 17. power control board; 18. control panel; 19. control circuit board; 20. handle groove; 21. perforation; 22. fixing shaft; 23. bushing; 24. sun gear; 25. planetary gear; 26 , planetary carrier; 27, output gear; 28, internal gear; 29, second bearing; 30, first step; 31, first retaining spring; 32, first slot; 33, second step; 34, second retaining spring; 35, second slot; 36, washer; 37, fixing column; 38, annular boss; 39, third retaining spring; 40, third slot; 41, shaft slot; 42, circular slot; 43, third bearing; 44, screw; 45, gasket; 46, electromagnetic lock; 47, connecting seat; 48, rod hole; 49, inner stopper; 50, outer stopper. DETAILED DESCRIPTION

[0028] The handle assembly of the compact shelving of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 11 As shown, the crank assembly of the compact shelving in this embodiment includes a crank 1, a handle 2 and a crank transmission mechanism. One end of the handle 2 is rotatably connected to one end of the crank 1, and the other end of the crank 1 is connected to the crank transmission mechanism. The crank 1 is provided with a power supply 3, a control member 4 and an electrically driven handle transmission mechanism. The handle transmission mechanism and the control member 4 are both electrically connected to the power supply 3. The control member 4 is used to control the movement of the handle transmission mechanism. The handle transmission mechanism is connected to one end of the handle 2 and is used to control the rotation of the handle 2. The above structure enables the crank assembly of the compact shelving of the present invention to realize automatic unfolding / folding of the handle by electric drive, which is very convenient to use.

[0030] The crank 1 in this embodiment includes a main body 5, a cover plate 6 and a fixing seat 7. A power supply installation cavity 8 is provided in the middle of the back side of the main body 5, and a fixing cavity 9 is provided at one end of the back side of the main body 5. The power supply 3 is arranged in the power supply installation cavity 8. The handle transmission mechanism is connected to the fixing seat 7 and arranged in the fixing cavity 9. The cover plate 6 is connected to the back side of the main body 5 and covers the power supply installation cavity 8 and the fixing cavity 9. The handle is located in front of the front side of the main body 5, and one end of the handle passes through the main body 5 and is connected to the handle transmission mechanism. The control member 4 is arranged at the front side of the crank 1 for user operation.

[0031] Preferably, the handle transmission mechanism includes a motor 10, a driving gear 11 and a transmission gear 12. A rotating shaft 13 is connected to one end of the handle 2. The rotating shaft 13 is rotatably connected to the crank 1. The motor 10 is connected to the crank 1. The driving gear 11 is connected to the motor shaft of the motor 10. The transmission gear 12 is connected to one end of the rotating shaft 13. The transmission gear 12 is meshed with the driving gear 11. The above-mentioned handle transmission structure is not only simple and compact in structure, but also has low working noise and high comfort in use.

[0032] In this embodiment, the motor 10 is connected to the fixed seat 7, and the motor shaft of the motor 10 is arranged parallel to the rotating shaft 13. Such an arrangement can effectively control the overall width of the handle transmission mechanism, and facilitate the installation and fixation of the handle transmission mechanism on the crank 1; both ends of the rotating shaft 13 pass through the main body 5 and extend into the fixed cavity 9, and both ends of the rotating shaft 13 are connected to a first bearing 14, and the outer ring of each first bearing 14 is pressed and fixed between the main body 5 and the fixed seat 7.

[0033] Preferably, the power source 3 is a rechargeable battery, the crank 1 is provided with a charging interface 16 and a power control board 17 with a charging circuit, the power source 3, the charging interface 16 and the control member 4 are all electrically connected to the power control board 17; the structures of the rechargeable battery, the charging interface 16 and the power control board 17 are all existing conventional technologies and will not be described in detail here.

[0034] The charging port 16 in this embodiment is located on the back side of the cover plate 6 , which can effectively ensure the safety of the charging port 16 and greatly reduce the possibility of accidental damage to the charging port 16 .

[0035] Preferably, the control member 4 includes a control panel 18 and a control circuit board 19, the control panel 18 is connected to the crank 1, the control circuit board 19 is connected to the control panel 18, the power supply 3 and the control panel 18 are both electrically connected to the control circuit board 19, of course, in this embodiment, the power supply 3 is electrically connected to the control circuit board 19 via the power control board 17; the above-mentioned control member 4 not only facilitates the control of the handle transmission mechanism, but the crank assembly of the compact shelving of the present invention can also set an unlocking password for the handle transmission mechanism through the control panel 18 and the control circuit board 19, thereby making the use of the crank assembly of the compact shelving of the present invention safer and more reliable.

[0036] The control panel 18 can be a mechanical key panel component with multiple buttons, or a touch screen panel component, or a combined panel component with both buttons and touch screens. The control panel 18 in this embodiment uses a combined panel component with both buttons and touch screens; the control circuit board 19 integrates conventional electronic components such as a central processing unit, a password memory, a speaker, an indicator light, and a lighting lamp, so that the entire control unit 4 can realize functions such as password lock, fingerprint lock, unlocking error alarm, key lighting, and control of motor forward / reverse rotation, thereby making the use of the hand shaking assembly of the compact shelving not only convenient, but also safer and more reliable. The structure and working principle of the control panel 18 and the control circuit board 19 are both existing conventional technologies. The hand shaking assembly of the compact shelving of the present invention is just a simple application of them to facilitate users to operate the hand shaking assembly of the compact shelving of the present invention, so it will not be repeated here.

[0037] Preferably, a handle groove 20 for accommodating the handle 2 is provided on the crank 1; the handle groove 20 in this embodiment is arranged on the front side of the main body 5 and along the length direction of the main body 5, and a pair of through holes 21 are provided on the two side walls at one end of the handle groove 20 for allowing the two ends of the rotating shaft 13 to extend into the fixed cavity 9; the above structure can not only make the crank assembly of the dense shelving of the present invention more compact, but also can effectively prevent the handle 2 from being hit by foreign objects when it is not in use, thereby effectively protecting the handle 2.

[0038] Preferably, the crank transmission mechanism includes a fixed shaft 22, a sleeve 23, a sun gear 24 and at least one planetary gear 25. The sleeve 23 and the sun gear 24 are both rotatably sleeved on the fixed shaft 22. A planet carrier 26 is provided at one end of the sleeve 23. The planetary gear 25 is rotatably connected to the planet carrier 26. An output gear 27 is provided at the other end of the sleeve 23. One end of the fixed shaft 22 is rotatably connected to the crank 1. An internal gear 28 is provided on the crank 1. The planetary gear 25 is meshed with the sun gear 24 and the internal gear 28 at the same time. A circumferential limiting mechanism is provided between the sun gear 24 and the fixed shaft 22, so that the rotatable angle of the sun gear 24 relative to the fixed shaft 22 is less than 360°.

[0039] In this embodiment, the sleeve 23 is sleeved on the fixed shaft 22, and both ends of the sleeve 23 are connected to the fixed shaft 22 through a second bearing 29. The sleeve 23 realizes axial limitation through the first step 30 provided on the fixed shaft 22 and the engaging structure between the first retaining spring 31 and the first retaining groove 32 provided on the fixed shaft 22; the sun gear 24 realizes axial limitation through the second step 33 provided on the fixed shaft 22 and the engaging structure between the second retaining spring 34 and the second retaining groove 35 provided on the fixed shaft 22; preferably, a washer 36 may be provided between one end of the sun gear 24 and the second retaining spring 34, and the washer 36 may be made of plastic, silicone or rubber material, so that the mutual collision between the sun gear 24 and the second retaining spring 34 can be effectively avoided, thereby greatly reducing the working noise of the crank transmission mechanism; at least one fixing column 37 is provided on the planetary carrier 26, and the fixing The axis of the column 37 is parallel to the axis of the fixed shaft 22. Each planetary gear 25 can be rotatably sleeved on the corresponding fixed column 37, and axial limitation is achieved through the annular boss 38 provided on the fixed column 37 and the engagement structure between the third retaining spring 39 and the third retaining groove 40 provided on the fixed column 37; the back of the body 5 is provided with an axial groove 41 and a circular groove 42, the axial groove 41 and the circular groove 42 are coaxially arranged, one end of the fixed shaft 22 is connected to the axial groove 41 through a third bearing 43, and the axial limitation of the third bearing 43 is achieved through the limiting structure of the screw 44 and the gasket 45 to prevent the third bearing 43 from detaching from one end of the fixed shaft 22; the internal gear 28 is arranged on the inner circumferential wall of the circular groove 42, the sun gear 24 and all the planetary gears 25 are located in the circular groove 42, and the cover plate 6 is provided with an avoidance hole to expose the axial groove 41 and the circular groove 42.

[0040] Preferably, an electromagnetic lock 46 is provided on the crank handle 1, and the electromagnetic lock 46 is electrically connected to the operating member 4. When the telescopic rod of the electromagnetic lock 46 is extended outward by controlling the operating member 4, one end of the telescopic rod of the electromagnetic lock 46 is located on the moving path of the planetary gear 25. The above structure enables the crank assembly of the compact shelving of the present invention to set an unlocking password for the electromagnetic lock 46 through the control panel 18 and the control circuit board 19, thereby making the use of the crank assembly of the compact shelving of the present invention safer and more reliable.

[0041] In this embodiment, the electromagnetic lock 46 is fixedly connected to the main body 5 via a connecting base 47. The connecting base 47 only serves to connect the electromagnetic lock 46 to the main body 5, so its specific structure is not described in detail here; the main body 5 is provided with a rod hole 48 that communicates with the circular groove 42, and one end of the telescopic rod of the electromagnetic lock 46 is inserted into the rod hole 48. When the telescopic rod of the electromagnetic lock 46 extends outward, one end of the telescopic rod of the electromagnetic lock 46 is inserted into the circular groove 42; the electromagnetic lock 46 is electrically connected to the control circuit board 19.

[0042] Of course, the crank assembly of the compact shelving of the present invention does not necessarily use the limiting structure between the electromagnetic lock 46 and the planetary gear 25 to achieve the rotational locking / unlocking of the crank handle 1, and it can also be achieved by currently conventional technical means.

[0043] Preferably, the circumferential limiting mechanism includes an inner stopper 49 and an outer stopper 50 . The inner stopper 49 is disposed on the sun gear 24 , and the outer stopper 50 is disposed on the outer peripheral wall of the fixed shaft 22 and is located on the moving path of the inner stopper 49 .

[0044] In this embodiment, the outer stopper 50 is disposed at the second step 33 , an annular groove 15 for accommodating the outer stopper 50 is disposed at one end of the sun gear 24 facing the second step 33 , and the inner stopper 49 is disposed on the inner circumferential wall of the annular groove 15 .

[0045] Preferably, there are two planetary gears 25, and the two planetary gears 25 are evenly distributed circumferentially. This not only makes the operation of the crank transmission mechanism more stable, further reduces the working noise of the crank assembly of the compact shelving of the present invention, and improves the user comfort, but also when the electromagnetic lock 46 is in a locked state, the two planetary gears 25 can better cooperate with the telescopic rod of the electromagnetic lock 46, thereby greatly reducing the rotatable angle of the crank assembly of the compact shelving of the present invention in the locked state; of course, the number of planetary gears 25 can also be three.

[0046] Of course, the handle transmission mechanism in the handle assembly of the compact shelving of the present invention may also adopt the existing conventional structure.

[0047] The working principle of the crank assembly of the compact shelving in this embodiment is as follows: after inputting a command or password through the control panel 18 and the control circuit board 19 is correctly proofread, the telescopic rod of the electromagnetic lock 46 is retracted, and at the same time the motor 10 works, and drives the rotating shaft 13 to rotate through the driving gear 11 and the transmission gear 12. At this time, the handle 2 is driven by the rotating shaft 13 to gradually rotate out of the handle slot 20 until it is fully unfolded; then the user rotates the crank 1 in one direction through the handle 2 to rotate the inner gear 28, and the inner gear 28 drives the planetary gear 25 to rotate, and the planetary gear 25 drives the sun gear 24 to rotate. At this time, since the output gear 27 is connected to a load, the planetary gear 25 only rotates around the fixed column 37 in its original position, and the shaft 24 is rotated. When the inner stopper 49 on the sun gear 24 rotates to the side of the outer stopper 50, the sun gear 24 no longer rotates under the mutual limiting action of the inner stopper 49 and the outer stopper 50. At this time, when the inner gear 28 continues to rotate driven by the inner gear 28, it will carry the fixed column 37 to move circumferentially in the circular groove 42. At this time, the sleeve 23 rotates and drives the load to run through the output gear 27, and the cabinet door of the compact shelving will gradually open. When the user releases the handle 2, if the handle 2 has a tendency to rotate in the same direction under the action of gravity, then under the mutual limiting action of the inner stopper 49 and the outer stopper 50 and the output gear 27 is connected with a load, the handle 2 will remain stationary. The handle 2 has a tendency to rotate in the opposite direction under the action of gravity, so the handle 2 will rotate in the opposite direction, and the internal gear 28 will drive the planetary gear 25 to rotate in the opposite direction, and the planetary gear 25 will drive the sun gear 24 to rotate in the opposite direction. At this time, since the output gear 27 is connected to a load, the planetary gear 25 only rotates around the fixed column 37 in its original position, and the shaft sleeve 23 does not rotate. However, the crank 1 will not produce a 360° rotation at this time, but will only make the end connected to the handle 2 rotate to the bottom and swing back and forth until it finally stops. Therefore, when the user releases the handle 2, no matter which of the above situations is the case, the cabinet door of the compact shelving will not move; similarly, when the cabinet door of the compact shelving needs to be closed, The user only needs to turn the crank 1 in the opposite direction through the handle 2; after closing the cabinet door of the compact shelving, the user inputs the command or password through the control panel 18. After the control circuit board 19 is correctly proofread, the telescopic rod of the electromagnetic lock 46 will extend into the circular groove 42. At this time, one end of the telescopic rod of the electromagnetic lock 46 will be located on the moving path of the planetary gear 25. At this time, under the obstruction of the telescopic rod of the electromagnetic lock 46, the planetary gear 25 cannot move circumferentially in the circular groove 42, thereby making the cabinet door of the compact shelving unable to be opened; at the same time, the motor 10 works again, and drives the rotating shaft 13 to rotate in the opposite direction through the driving gear 11 and the transmission gear 12. At this time, the handle 2 is gradually folded back into the handle groove 20 driven by the rotating shaft 13.

[0048] The above embodiments are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A crank assembly for a compact shelving system, comprising a crank handle (1) and a crank transmission mechanism, characterized in that: The crank transmission mechanism comprises a fixed shaft (22), a shaft sleeve (23), a sun gear (24) and at least one planetary gear (25); the shaft sleeve (23) and the sun gear (24) are both rotatably sleeved on the fixed shaft (22); one end of the shaft sleeve (23) is provided with a planet carrier (26); the planetary gear (25) is rotatably connected to the planet carrier (26); the other end of the shaft sleeve (23) is provided with an output gear (27); one end of the fixed shaft (22) is rotatably connected to the crank handle (1); the crank handle (1) is provided with an internal gear (28); the planetary gear (25) is meshed with the sun gear (24) and the internal gear (28) at the same time; a circumferential limiting mechanism is provided between the sun gear (24) and the fixed shaft (22) so that the The sun gear (24) can rotate at an angle of less than 360° relative to the fixed shaft (22); the crank (1) is provided with a power supply (3), a control member (4) and an electromagnetic lock (46); the control member (4) is electrically connected to the power supply (3); the electromagnetic lock (46) is electrically connected to the control member (4); when the telescopic rod of the electromagnetic lock (46) is controlled to extend outward by the control member (4), one end of the telescopic rod of the electromagnetic lock (46) is located on the moving path of the planetary gear (25); the circumferential limiting mechanism comprises an inner stopper (49) and an outer stopper (50); the inner stopper (49) is arranged on the sun gear (24); the outer stopper (50) is arranged on the outer peripheral wall of the fixed shaft (22) and is located on the moving path of the inner stopper (49).

2. The handle assembly of the compact shelving according to claim 1, characterized in that: The power source (3) is a rechargeable battery. The crank (1) is provided with a charging interface (16) and a power control board (17) having a charging circuit. The power source (3), the charging interface (16) and the control element (4) are all electrically connected to the power control board (17).

3. The handle assembly of the compact shelving according to claim 1, characterized in that: The control member (4) comprises a control panel (18) and a control circuit board (19); the control panel (18) is connected to the crank (1); the control circuit board (19) is connected to the control panel (18); and the power supply (3) and the control panel (18) are both electrically connected to the control circuit board (19).

4. The handle assembly of the compact shelving according to claim 1, characterized in that: There are two planetary gears (25), and the two planetary gears (25) are evenly distributed in the circumferential direction.

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