A rocking handle assembly for a compact shelving

Abstract

The present invention relates to a crank assembly of a compact shelving, comprising a crank and a handle, one end of the handle is rotatably connected to the crank, a power source, a control member and an electrically driven handle transmission mechanism are provided on the crank, the handle transmission mechanism and the control member are electrically connected to the power source, the control member is used to control the movement of the handle transmission mechanism, the handle transmission mechanism is connected to one end of the handle and is used to control the rotation of the handle, the handle transmission mechanism comprises a motor, a driving gear and a transmission gear, one end of the handle is connected to a rotating shaft, the rotating shaft is rotatably connected to the crank, the motor is connected to the crank, the driving gear is connected to the motor shaft of the motor, the transmission gear is connected to one end of the rotating shaft, and the transmission gear is meshed with the driving gear. The advantages of the present invention are: the automatic unfolding / folding of the handle is realized by electric drive, it is very convenient to use, the handle transmission structure is simple and compact, the working noise is small, and the comfort of use is high.

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. 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 operation 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 existing handwheel crank handle is usually fixed or plug-in retractable handle. The handwheel of the fixed handle is always unfolded, occupies a certain space, and people are easily injured when walking; although the plug-in handle can be retracted to reduce the use space, its retraction and expansion must be achieved by pulling, which is not only time-consuming and labor-intensive, but also inconvenient to operate. In order to solve the above technical problems, the invention patent applied for and authorized by the applicant (Announcement No.: CN104257117B) discloses a hand-cranked compact cabinet crank handle, which drives the stop pin column to move down into the rotating core shaft through a compression spring and a pushing shaft, thereby realizing the rotatable and foldable function of the handle. It is easy to operate and has a simple structure. However, since the folding / unfolding of the handle still needs to be done manually by the user, there are still inconveniences in use. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a handle assembly of a compact shelving system capable of realizing automatic unfolding / folding of the handle.

[0004] In order to solve the above-mentioned technical problems, the present invention provides a crank assembly of a compact shelving with the following structure: it includes a crank and a handle, one end of the handle is rotatably connected to the crank, wherein the crank is provided with a power supply, a control member and an electrically driven handle transmission mechanism, the handle transmission mechanism and the control member are both electrically connected to the power supply, the control member is used to control the movement of the handle transmission mechanism, and the handle transmission mechanism is connected to one end of the handle and is used to control the rotation of the handle.

[0005] After adopting the above structure, compared with the prior art, the present invention has the following advantages: the handle assembly of the compact shelving of the present invention realizes automatic unfolding / folding of the handle by electric drive, which is very convenient to use.

[0006] The crank assembly of the compact shelving described in the present invention, wherein the handle transmission mechanism includes a motor, a driving gear and a transmission gear, a rotating shaft is connected to one end of the handle, the rotating shaft is rotatably connected to the crank, the motor is connected to the crank, the driving gear is connected to the motor shaft of the motor, the transmission gear is connected to one end of the rotating shaft, and the transmission gear is meshed with the driving gear.

[0007] The handle transmission structure is not only simple and compact in structure, but also has low working noise and high comfort in use.

[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 handle transmission mechanism, but also the handle assembly of the compact shelving of the present invention can set an unlocking password for the handle transmission mechanism 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 crank assembly of the compact shelving described in the present invention is characterized in that a handle groove for accommodating the handle is provided on the crank handle.

[0013] The above structure can not only make the handle assembly of the compact shelving of the present invention more compact, but also effectively prevent the handle from being hit by foreign objects when the handle is not in use, thereby effectively protecting the handle.

[0014] The hand crank assembly of the compact shelving described in the present invention also includes a hand crank transmission mechanism, which 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, and 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 a crank handle, and an internal gear is provided on the crank handle. The planetary gears are meshed with the sun gear and the internal gear at the same time. 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°.

[0015] Since the crank transmission mechanism of the existing compact shelving crank assembly generally adopts a pair of clutch automatic hooks and a matching structure of a latching tooth set on the crank handle to realize the clutch function between the crank handle and the shaft sleeve, and the latching tooth, clutch automatic hook and crank handle are usually made of metal materials, they will produce a large noise due to mutual collision during use, which greatly affects the user's comfort. The crank transmission mechanism of the crank assembly of the compact shelving of the present invention adopts an internal gear, a sun gear, a planetary gear and a circumferential limit mechanism 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 the various parts, thereby greatly reducing the working noise of the crank assembly of the compact shelving of the present invention, and effectively improving the user's comfort.

[0016] The crank assembly of the compact shelving described in the present invention has an electromagnetic lock on the crank handle, which is electrically connected to the operating member. When the telescopic rod of the electromagnetic lock is extended outwardly by controlling the operating member, one end of the telescopic rod of the electromagnetic lock is located on the moving path of the planetary gear.

[0017] The above structure not only realizes the rotation locking / unlocking of the crank handle, thereby making the crank handle assembly of the compact shelving of the present invention more safe to use, but also has simple operation and low working noise, thereby effectively ensuring the user's comfort.

[0018] 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.

[0019] 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.

[0020] The handle assembly of the compact shelving described in the present invention comprises two planetary gears, which are evenly distributed in the circumferential direction.

[0021] 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 improve the service life of the crank assembly of the compact shelving of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front side perspective structural diagram of a handle assembly of a compact shelving system according to the present invention;

[0023] Figure 2 It is a rear side perspective structural diagram of a handle assembly of a compact shelving system according to the present invention;

[0024] Figure 3 It is an exploded view of a crank handle in a crank handle assembly of a compact shelving system of the present invention;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of a control member in a handle assembly of a compact shelving system of the present invention;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the main body of a crank handle in a crank handle assembly of a compact shelving system of the present invention;

[0027] Figure 6 is along Figure 1 Sectional view along line AA;

[0028] Figure 7 is along Figure 1 Sectional view along the midline BB;

[0029] Figure 8 is along Figure 1 Sectional view of the mid-CC line;

[0030] Fig. 9 is along Figure 8 Sectional view along the mid-DD line;

[0031] Fig.10 It is a three-dimensional structural schematic diagram of a crank transmission mechanism in a crank assembly of a compact shelving system of the present invention;

[0032] Fig.11 It is an exploded view of a crank transmission mechanism in a crank assembly of a compact shelving system according to the present invention.

[0033] 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

[0034] The following is a further detailed description of a handle assembly of a compact shelving system of the present invention in conjunction with the accompanying drawings and specific implementations.

[0035] like Figures 1 to 11 As shown, a crank assembly of a 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.

[0036] 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.

[0037] 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, and the transmission gear 12 is meshed with the driving gear 11.

[0038] 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.

[0039] 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.

[0040] 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 .

[0041] 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 through the power control board 17; the control panel 18 can be a mechanical key panel assembly with multiple buttons, or a touch screen panel assembly, or a combined panel assembly with both buttons and touch screens. The control panel 18 in this embodiment adopts a combined panel assembly with both buttons and touch screens; the control circuit board 19 is integrated with 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 member 4 can realize functions such as password lock, fingerprint lock, unlock error alarm, key lighting, and control motor forward / reverse rotation, so that the use of the hand crank assembly of the compact rack is 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 crank assembly of the compact rack of the present invention is only a simple application of them to facilitate the user to operate the hand crank assembly of the compact rack of the present invention, so it is not repeated here.

[0042] 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 body 5 and along the length direction of the 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.

[0043] 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°.

[0044] 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.

[0045] Preferably, an electromagnetic lock 46 is provided on the crank 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 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 .

[0046] 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.

[0047] 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 .

[0048] 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 .

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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 (1) and a handle (2), wherein one end of the handle (2) is rotatably connected to the crank (1), and characterized in that: The crank (1) is provided with a power source (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 source (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 handle transmission mechanism comprises a motor (10), a driving gear (11) and a transmission gear (12), one end of the handle (2) is connected to a rotating shaft (13), the 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), and the transmission gear (12) is meshed with the driving gear (11); the crank (1) is provided with a handle groove (20) for accommodating the handle (2); and also includes a crank transmission mechanism, which includes 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 planetary carrier (26), the planetary gear (25) is rotatably connected to the planetary 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 (1), the crank (1) is provided with an internal gear (28), and the planetary gear (25) is also The sun gear (24) is meshed with the internal gear (28), and a circumferential limit 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°; the circumferential limit mechanism includes an inner stop block (49) and an outer stop block (50), the inner stop block (49) is arranged on the sun gear (24), and the outer stop block (50) is arranged on the outer peripheral wall of the fixed shaft (22) and is located on the moving path of the inner stop block (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: 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 controlled to extend outward by 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).

5. 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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