Braking device for compact shelving with self-locking function

Abstract

The present application relates to the field of drive device for compact shelf, especially to a compact shelf brake device with self-locking function, comprising a brake mechanism assembly, a connecting piece, a transmission fixed plate, a main transmission shaft assembly, a crank handle assembly, a clamping structure and a cover, the transmission fixed plate is installed on the compact shelf, the connecting piece is installed on the transmission fixed plate, the connecting piece is installed together with the transmission fixed plate through connecting bolts, a support bearing is installed on the connecting piece, the main transmission shaft assembly is sleeved on the support bearing installed on the connecting piece, the compact shelf brake device of the present application is combined with the crank handle, which greatly optimizes the brake device structure component and reduces the cost of production materials; the brake structure can be packaged in the transmission structure of the crank handle, avoiding the loss of constituent parts during packaging or transportation, and ensuring the installation of the compact shelf transmission brake mechanism in the later period.

Description

Technical Field

[0001] This invention relates to the field of transmission devices for mobile shelving units, and in particular to a braking device for mobile shelving units with a self-locking function. Background Technology

[0002] With the rapid development of modern society, information and data are constantly increasing. While this brings convenience to people's use and information exchange, it also brings new problems to storage, retrieval, and management. Mobile shelving is a common type of storage equipment used by government agencies, enterprises, and other institutions for storing books, archives, goods, financial documents, and other items. It mainly consists of rails, shelving units, transmission devices, chassis, panels, and top panels. It offers large storage capacity, ease of use, space saving, and convenient management. The braking device of mobile shelving is an important component of the overall structure. Existing mobile shelving braking devices have the following shortcomings: 1. The braking device of the existing mobile shelving is an independent structure, which makes the shelving structure complex, the production cost high, and the on-site installation operation difficult when the welding precision is insufficient; 2. The braking components of the existing mobile shelving units are separate parts, which are very easy to lose during packaging and transportation, thus affecting the subsequent installation of the mobile shelving units; 3. When installing the braking device of the existing mobile shelving, an external braking device knob is required on the front panel of each column of mobile shelving, which has a negative impact on the aesthetics. 4. The braking devices used in existing mobile shelving units have limited functionality, low usage frequency, high space consumption, and a poor user experience. Activating or deactivating the braking device requires the user to slightly squat, increasing unnecessary effort and making operation relatively cumbersome. Furthermore, because the braking device is located below the crank handle, which is relatively large, it is easy to accidentally bump the handle when activating or deactivating the device, affecting the user experience. Summary of the Invention

[0003] The purpose of this invention is to provide a mobile shelving braking device with a self-locking function. Its overall structure is relatively simple. The braking device can be combined with a crank handle. In use, the braking effect of the mobile shelving is achieved by pressing and rotating the cover of the crank handle. It is very simple and convenient to install and use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A self-locking mobile shelving braking device includes a braking mechanism assembly, a connecting member, a transmission fixing plate, a main transmission shaft assembly, a crank handle assembly, a locking structure, and a cover. The transmission fixing plate is mounted on the mobile shelving unit, and the connecting member is mounted on the transmission fixing plate. A fixing seat B in the connecting member is mounted to the transmission fixing plate via connecting bolts. A support bearing (fixed seat A) is mounted on the connecting member. The main transmission shaft assembly is fitted onto the support bearing (fixed seat A) of the connecting member. A left-side mounting hole is provided on the inner side of the crank handle assembly. A bearing is installed in the left mounting hole. The crank assembly is installed on the right side of the support shaft of the connector through the bearing. A right mounting hole is opened on the outside of the crank assembly. The locking structure is locked in the right mounting hole. A working hole for installing the cover is opened on the inner wall of the locking structure. The cover is fastened in the working hole and can be rotated and adjusted in the working hole. A mounting through hole is machined at the center of the connector, the crank assembly and the locking structure. The braking mechanism assembly passes through the mounting through holes on the connector, the crank assembly and the locking structure in sequence and contacts the inside of the cover.

[0005] The braking mechanism assembly includes a brake pin, a brake pin retaining plate, a spring, and a push rod. The brake pin is used to limit the position of the main drive shaft assembly. One end of the brake pin is installed on the lower part of the brake pin retaining plate and is fixedly connected to the brake pin retaining plate. A threaded through hole is machined on the brake pin retaining plate. One end of the push rod is screwed into the threaded through hole on the brake pin retaining plate through a threaded engagement. A spring mounting part is provided on the side of the push rod near the brake pin retaining plate. The spring is fitted on the spring mounting part on the push rod to push the push rod to move and reset.

[0006] The connecting component includes a fixed base A and a fixed base B. The fixed base B is mounted on the transmission fixed plate by fastening bolts. A first through hole for the through installation of a rotating pin is machined on the fixed base B. One end of the fixed base A is mounted on the fixed base B and is fixedly connected to the fixed base B as a whole. An installation through hole for the through installation of a push rod is machined on the fixed base A along its axial direction. The installation through hole passes through the fixed base A and the fixed base B.

[0007] The main drive shaft assembly includes a drive gear, a gear sleeve shaft, and a driving gear. The drive gear is installed on one side of the gear sleeve shaft and is fixedly connected to the gear sleeve shaft. The driving gear is installed on the other side of the gear sleeve shaft and is fixedly connected to the gear sleeve shaft. A fitting hole is machined along the axial direction of the gear sleeve shaft. The gear sleeve shaft is installed on the support bearing on the connector through the fitting hole.

[0008] Furthermore, a locking groove is provided in the mounting hole on the right side of the crank assembly, and a locking block adapted to the locking groove is installed on the outer circle of the locking structure. During installation, the locking structure is engaged in the locking groove on the crank assembly by the locking block and is tightly fitted with the locking groove.

[0009] Furthermore, a guide locking groove is provided in the working hole of the locking structure, and a locking block that is adapted to the guide locking groove is installed on the outer circle of the cover. During installation, the cover can be engaged in the guide locking groove by the locking block and can slide and rotate in the guide locking groove.

[0010] The guide locking groove is an L-shaped groove structure. When the locking block on the cover slides to the bottom of the L-shaped guide locking groove, the locking block is locked in the L-shaped guide locking groove by rotating the cover, thereby limiting the position of the locking block. When the locking block on the cover is rotated in the opposite direction, the L-shaped guide locking groove can release the position limitation of the locking block, and the cover can then slide back and forth.

[0011] Furthermore, a guide groove is provided in the working hole of the locking structure, and a wedge-shaped guide block that is adapted to the guide groove is installed on the outer circle of the cover. During installation, the guide groove on the locking structure can guide and limit the wedge-shaped guide block, thereby preventing the cover from falling out of the working hole on the locking structure.

[0012] The beneficial effects of this invention are as follows: The overall structural design of the mobile shelving braking device with self-locking function is scientific, and compared with the existing independent braking structure, it has the following technical features and advantages: 1. This invention combines the self-locking mobile shelving braking device structure with a crank handle, which greatly optimizes the braking device structure and reduces the cost of production materials. 2. The braking structure in the mobile shelving braking device of the present invention can be encapsulated in the transmission structure of the crank handle, which avoids the loss of components during packaging or transportation and ensures the subsequent installation of the mobile shelving transmission braking mechanism. 3. The braking device of the present invention is combined with the crank handle assembly, which eliminates the need for a separate braking knob on the front side panel of each column of mobile shelving, making it more aesthetically pleasing and simple. 4. The mobile shelving braking device of the present invention can be modularly produced and precisely matched, ensuring high-quality and efficient production and installation of the product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the mounting assembly structure of the mobile shelving braking device of the present invention; Figure 2 This is an exploded schematic diagram of the mobile shelving braking device of the present invention; Figure 3 This is a partial cross-sectional view of the braking device for the mobile shelving unit of the present invention; Figure 4 This is a schematic diagram of the braking mechanism assembly in the mobile shelving braking device of the present invention; Figure 5 This is a schematic diagram of the connecting member in the mobile shelving braking device of the present invention; Figure 6 This is a schematic diagram of the main drive shaft assembly in the mobile shelving braking device of the present invention; Figure 7 This is a schematic diagram of the crank assembly in the mobile shelving braking device of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the crank assembly in the mobile shelving braking device of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the locking structure in the mobile shelving braking device of the present invention; Figure 10 This is a schematic diagram of the structure of the cover in the mobile shelving braking device of the present invention; Figure 11 This is a schematic diagram of the installation of the braking mechanism assembly, the connecting parts, and the main drive shaft assembly in this invention; Figure 12 This is a schematic diagram of the installation of the crank handle assembly, the locking structure, and the cover in this invention; The numbers in the diagram are as follows: 1-Brake mechanism assembly, 2-Connecting part, 3-Transmission fixing plate, 4-Main drive shaft assembly, 5-Crank handle assembly, 6-Clocking structure, 7-Cover, 51-Left side mounting hole, 52-Right side mounting hole, 53-Hanging tongue, 521-Locking groove, 11-Brake pin, 12-Brake pin fixing piece, 13-Spring, 14-Push rod, 21-Fixed seat A, 22-Fixed seat B, 41-Transmission gear, 42-Gear sleeve shaft, 43-Drive gear, 61-Locking block, 62-Guide locking groove, 63-Guide groove, 71-Locking block, 72-Wedge guide block. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly or indirectly connected to the other element. When an element is referred to as "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this application to indicate orientation are based on the specific structure shown in the accompanying drawings and do not constitute a limitation on the structure.

[0015] Specific Implementation Example 1: As per the attached instruction manual Figure 1 and instruction manual attached Figure 2As shown, the mobile shelving braking device with self-locking function provided by the present invention mainly includes a braking mechanism assembly 1, a connecting member 2, a transmission fixing plate 3, a main transmission shaft assembly 4, a crank assembly 5, a locking structure 6, and a cover 7. The transmission fixing plate 3 is used to support the connecting member 2. The transmission fixing plate 3 is installed on the mobile shelving. The connecting member 2 is installed on the transmission fixing plate 3 and is installed together with the transmission fixing plate 3 by connecting bolts. A support bearing (fixed seat A) is installed on the upper side of the connecting member 2. The main transmission shaft assembly 4 is fitted onto the support bearing (fixed seat A) installed on the connecting member 2. A left mounting hole 51 is opened on the inner side of the crank assembly 5, and a bearing is installed in the left mounting hole 51. During installation, the crank assembly 5 is installed on the outer end of the fixed seat A of the connecting member 2 through the bearing. A right mounting hole 52 is opened on the outer side of the crank assembly 5, and a locking groove 521 is opened in the right mounting hole 52. On the outer circle of the locking structure 6... A locking stop 61 adapted to the locking groove 521 is installed. During installation, the locking structure 6 engages with the locking groove 521 on the crank handle assembly 5 via the locking stop 61, and fits tightly with the locking groove 521. A working hole for mounting the cover 7 is provided on the locking structure 6. A guide locking groove 62 and a guide groove 63 are provided in the working hole. A locking block 71 adapted to the guide locking groove 62 is installed on the outer circumference of the cover 7 to limit its own movement and prevent it from falling off. The wedge-shaped guide block 72 is adapted to the guide groove 63. During installation, the cover 7 can be installed in the locking structure 6 through the wedge-shaped guide block 72, and the locking block 71 on it is engaged in the guide locking groove 62. It can slide and rotate in the guide locking groove 62. There are installation through holes machined at the center of the connector 2, the crank assembly 5 and the locking structure 6. The braking mechanism assembly 1 passes through the installation through holes on the connector 2, the crank assembly 5 and the locking structure 6 in sequence and contacts the inner side of the cover 7.

[0016] As per the appendix to the specification of this invention Figure 4 As shown, the braking mechanism assembly 1 used to realize the braking effect of the mobile shelving transmission mechanism includes a brake pin 11, a brake pin fixing plate 12, a spring 13, and a push rod 14. The rotating pin 11 is used to limit the position of the main transmission shaft assembly 4 during operation. One end of the rotating pin 11 is fixedly installed on the lower part of the brake pin fixing plate 12. A threaded through hole is machined on the brake pin fixing plate 12. One end of the push rod 14 is screwed into the threaded through hole on the brake pin fixing plate 12 through a threaded engagement. A spring mounting part is opened on the side of the push rod 14 near the brake pin fixing plate 12. The brake pin fixing plate is placed behind the position of the push rod and the brake pin opening on the transmission fixing plate 3. The spring 13 is installed on the spring mounting part of the push rod 14. The spring mounting part passes through the transmission fixing plate 3 (the spring does not pass through, but is pressed on the transmission fixing plate) and is screwed into the threaded through hole on the brake pin fixing plate 12 through a threaded engagement. The sliding of the brake pin 11 is controlled by the extension and contraction of the spring.

[0017] As per the appendix to the specification of this invention Figure 5 As shown, the connecting member 2, which provides a guide channel for the push rod 14 and supports the main drive shaft assembly 4, includes a fixed seat A21 and a fixed seat B22. The fixed seat B22 is mounted on the transmission fixed plate 3 by fastening bolts. A first through hole for the rotating pin 11 to pass through is machined on the fixed seat B22. One end of the fixed seat A21 is mounted on the fixed seat B22 and is fixedly connected to the fixed seat B22 as a whole. An installation through hole for the push rod 14 to pass through is machined on the fixed seat A21 along its axial direction. The installation through hole passes through the fixed seat A21 and the fixed seat B22.

[0018] As per the appendix to the specification of this invention Figure 6 As shown, the main drive shaft assembly 4 used to drive the mobile shelving transmission mechanism includes a drive gear 41, a gear sleeve shaft 42, and a drive gear 43. The drive gear 41 is connected to the transmission mechanism in the mobile shelving chassis via a chain. The drive gear 41 is installed on the left side of the gear sleeve shaft 42 and is fixedly connected to the gear sleeve shaft 42. The drive gear 43 is installed on the right side of the gear sleeve shaft 42 and is fixedly connected to the gear sleeve shaft 42. A fitting hole is machined along the axial direction of the gear sleeve shaft 42. The gear sleeve shaft 42 is installed on the support bearing (fixed seat A21) on the connector 2 through the fitting hole.

[0019] The working principle and process of the mobile shelving crank device with self-locking braking function during specific installation and use are as follows: (see attached instruction manual) Figure 3As shown, firstly, the operator can place the brake pin fixing piece in the brake mechanism assembly 1 behind the push rod and brake pin opening on the transmission fixing plate 3. The spring 13 is installed in the spring mounting part of the push rod 14. The spring mounting part passes through the push rod hole on the transmission fixing plate 3 (the diameter of the push rod hole is smaller than the spring diameter and slightly larger than the outer diameter of the spring mounting part. The spring 13 does not pass through the push rod hole and is pressed on the transmission fixing plate). The knob is turned in the threaded through hole on the brake pin fixing piece 12 through the threaded engagement. Then, the through mounting hole of the connecting piece 2, which is machined along the axial direction, is fitted onto the push rod 14. At the same time, the first through hole below the fixing seat B22 is fitted onto the brake pin 11, and the fixing seat B22 is installed on the transmission fixing plate 3 using fastening bolts. Then, a support bearing is installed on the fixed seat A21 in the connector 2, and the main drive shaft assembly 4 is fitted onto the support bearing installed on the fixed seat A21. After the above installation is completed, the operator can install the crank assembly 5 on the outer end of the fixed seat A21 through the bearing. At this time, it is necessary to ensure that the hanging tongue 53 in the crank assembly 5 and the driving gear 43 in the main drive shaft assembly 4 are in the correct positions. The locking structure 6 is engaged with the locking groove 521 in the crank assembly 5 through the locking block 61 on it. The cover 7 can be installed in the working hole of the locking structure 6 through the wedge guide block 72 and contact the end of the fixed seat A21 through the push rod 14. The locking block 71 on the outer circle of the cover is engaged in the guide locking groove 62 and can slide and rotate in the guide locking groove 62.

[0020] In practical use, since the cover 7 is in contact with the end of the push rod 14, the operator can push the push rod 14 by pressing and pushing the cover 7. The push rod 14 applies pressure to the spring 13, and the spring 13 is compressed. At the same time, the push rod drives the brake pin fixing plate 12 and the brake pin 11 to move backward. When the brake pin 11 moves backward, the part of the brake pin 11 protruding from the first through hole of the fixing seat B22 becomes less, and it can no longer limit the transmission gear 41 in the main drive shaft assembly 4. At this time, the limit is released.

[0021] When the pressure on the cover 7 is released, the pressure on the spring 13 disappears, the compression is released, and it begins to extend, pushing the push rod 14 forward. The movement of the push rod 14 causes the brake pin fixing piece 12 and the brake pin 11 to move forward. At this time, the brake pin 11 protrudes from the first through hole of the fixing seat B22 and contacts and limits the transmission gear 41 in the main drive shaft assembly 4. At this time, the braking is intense. It should be noted that the guide locking groove 62 has an L-shaped groove structure. When the cover 7 is pressed and pushed, the locking block 71 on the cover 7 slides to the bottom of the L-shaped guide locking groove 62. By rotating the cover 7, the locking block 71 is locked in the L-shaped guide locking groove 62, thus limiting the position of the locking block 71. At this time, the spring 13 is compressed and cannot rebound, and the limit is released. When the locking block 71 on the cover 7 is rotated in the opposite direction, the L-shaped guide locking groove 62 can release the position restriction of the locking block 71, and the cover 7 can slide back and forth. At this time, the spring 13 rebounds and extends the brake pin 11, which protrudes and limits the transmission gear 41, thus braking the mobile shelving unit.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A self-locking mobile shelving braking device, characterized in that, The assembly includes a braking mechanism assembly (1), a connecting piece (2), a transmission fixing plate (3), a main drive shaft assembly (4), a crank handle assembly (5), a locking structure (6), and a cover (7). The transmission fixing plate (3) is installed on the mobile shelving unit. The connecting piece (2) is installed on the transmission fixing plate (3) and is connected to the transmission fixing plate (3) by connecting bolts. A support bearing is installed on the connecting piece (2). The main drive shaft assembly (4) is fitted onto the support bearing of the connecting piece (2). A left mounting hole (51) is provided on the inner side of the crank handle assembly (5), and a bearing is installed in the left mounting hole (51). The crank assembly (5) is mounted on the outer end of the connector (2) via a bearing. A right-side mounting hole (52) is provided on the outer side of the crank assembly (5). The locking structure (6) is engaged in the right-side mounting hole (52). A working hole for mounting the cover (7) is provided on the inner wall of the locking structure (6). The cover (7) is fastened in the working hole and can be rotated and adjusted in the working hole. A mounting through hole is machined at the center of the connector (2), the crank assembly (5) and the locking structure (6). The brake mechanism assembly (1) passes through the mounting through holes on the connector (2), the crank assembly (5) and the locking structure (6) in sequence and contacts the inner side of the cover (7). The braking mechanism assembly (1) includes a brake pin (11), a brake pin fixing plate (12), a spring (13), and a push rod (14). The brake pin (11) is used to limit the position of the main drive shaft assembly (4). One end of the brake pin (11) is installed on the lower part of the brake pin fixing plate (12) and is fixedly connected to the brake pin fixing plate (12). A threaded through hole is machined on the brake pin fixing plate (12). One end of the push rod (14) is screwed into the threaded through hole on the brake pin fixing plate (12) by threaded engagement. A spring mounting part is provided on the side of the push rod (14) near the brake pin fixing plate (12). The spring (13) is fitted on the spring mounting part of the push rod (14) to push the push rod (14) to move and reset.

2. A self-locking mobile shelving braking device according to claim 1, characterized in that, The connecting member (2) includes a fixed seat A (21) and a fixed seat B (22). The fixed seat B (22) is mounted on the transmission fixed plate (3) by fastening bolts. A first through hole for the brake pin (11) is machined on the fixed seat B (22). One side of the fixed seat A (21) is mounted on the fixed seat B (22) and is fixedly connected to the fixed seat B (22). An installation through hole for the push rod (14) is machined along its axial direction on the fixed seat A (21). The installation through hole passes through the fixed seat A (21) and the fixed seat B (22).

3. A mobile shelving braking device with self-locking function according to claim 1, characterized in that, The main drive shaft assembly (4) includes a drive gear (41), a gear sleeve shaft (42), and a drive gear (43). The drive gear (41) is installed on one side of the gear sleeve shaft (42) and is fixedly connected to the gear sleeve shaft (42). The drive gear (43) is installed on the other side of the gear sleeve shaft (42) and is fixedly connected to the gear sleeve shaft (42). A fitting hole is machined along the axial direction of the gear sleeve shaft (42). The gear sleeve shaft (42) is installed on the support bearing on the connector (2) through the fitting hole.

4. A mobile shelving braking device with self-locking function according to claim 1, characterized in that, Furthermore, a locking groove (521) is provided in the mounting hole (52) on the right side of the crank assembly (5), and a locking block (61) adapted to the locking groove (521) is installed on the outer circle of the locking structure (6). During installation, the locking structure (6) is engaged in the locking groove (521) on the crank assembly (5) by the locking block (61) and is tightly fitted with the locking groove (521).

5. A mobile shelving braking device with self-locking function according to claim 4, characterized in that, Furthermore, a guide locking groove (62) is provided in the working hole of the locking structure (6), and a locking block (71) adapted to the guide locking groove (62) is installed on the outer circle of the cover (7). During installation, the cover (7) can be engaged in the guide locking groove (62) by the locking block (71) and can slide and rotate in the guide locking groove (62).

6. A mobile shelving braking device with self-locking function according to claim 5, characterized in that, The guide locking groove (62) is an L-shaped groove structure. When the locking block (71) on the cover (7) slides to the bottom of the L-shaped guide locking groove (62), the locking block (71) is locked in the L-shaped guide locking groove (62) by rotating the cover (7), thereby limiting the position of the locking block (71). When the locking block (71) on the cover (7) is rotated in the opposite direction, the L-shaped guide locking groove (62) can release the position limitation of the locking block (71), and the cover (7) can slide back and forth at this time.

7. A self-locking mobile shelving braking device according to claim 6, characterized in that, Furthermore, a guide groove (63) is provided in the working hole of the locking structure (6), and a wedge-shaped guide block (72) that is adapted to the guide groove (63) is installed on the outer circle of the cover (7). During installation, the guide groove (63) on the locking structure (6) can guide and limit the wedge-shaped guide block (72), thereby preventing the cover (7) from falling out of the working hole on the locking structure (6).

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