Guard rail and bed guard rail

Abstract

The utility model discloses a guardrail frame, is equipped with upper crossbar subassembly between two root columns upper end, is equipped with lower crossbar subassembly between lower extreme, is equipped with drive arrangement in two root columns, and drive arrangement includes the screw rod respectively equipped in two root columns, still is equipped with motor of drive screw rod rotation in root column, is connected with the screw nut of being able to move along its up and down in its rotation on screw rod, is fixedly connected with connecting seat on screw nut nut, and the guiding portion that can supply connecting seat along its sliding is equipped with respectively on or in the two root columns, and upper crossbar subassembly includes upper crossbar, and the movable seat is connected with the both ends of upper crossbar, and the movable seat is detachably connected with connecting seat and can alone or with connecting seat along guiding portion up and down sliding, still is equipped with control unit and battery in at least one root column, and control unit has voice control module, and the lateral side of at least one root column is equipped with control panel. The utility model still includes the bed guardrail of using preceding guardrail frame. The utility model discloses guardrail frame and bed guardrail simple structure, and convenient operation.

Description

[Technical Field]

[0001] This utility model relates to a guardrail frame and a bed guardrail. [Background Technology]

[0002] The guardrail frame is a key component of products such as bed rails and playpens. A guardrail frame typically consists of two uprights, a lower crossbar assembly, and an upper crossbar assembly forming a frame. To facilitate entry and exit for infants and toddlers, the upper crossbar assembly is designed to be height-adjustable. However, current guardrail frames generally suffer from the following technical problems: when an adult places an infant or toddler inside the bed rail or playpens, they need to hold the infant or toddler with one hand while operating the height adjustment switch of the upper crossbar assembly with the other, making it inconvenient for the user.

[0003] Therefore, this utility model was created based on the above-mentioned shortcomings. [Utility Model Content]

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a guardrail frame that is simple in structure and easy to operate.

[0005] This utility model also provides a bed rail with a simple structure and easy operation.

[0006] This utility model is achieved through the following technical solution:

[0007] A guardrail includes two spaced-apart posts. An upper crossbar assembly, capable of rising and falling relative to the upper ends of the two posts, and a lower crossbar assembly, also capable of rising and falling relative to the lower ends of the two posts, are provided within the two posts. A drive device for raising and lowering the upper crossbar assembly is provided within each of the two posts. The drive device includes lead screws respectively disposed within the two posts. A motor for driving the lead screws to rotate is also provided within each post. A lead screw nut, capable of moving up and down along the lead screw during rotation, is connected to the lead screw. A connecting seat is fixedly connected to the lead screw nut. The two posts are respectively provided with... The upper crossbar assembly includes an upper crossbar, with movable seats connected to both ends of the upper crossbar. The movable seats and the connecting seats are detachably connected and can slide up and down along the guide portion alone or together with the connecting seats. A locking component is provided between the movable seats and the connecting seats to lock them together. At least one column also has a control unit electrically connected to the drive device and controlling the lifting and lowering of the upper crossbar assembly. The control unit has a voice control module. At least one column has a control panel on its outer side. At least one column also has a battery for power supply.

[0008] The guide part is a vertical rod located inside the column, and the connecting seat and the movable seat are sleeved on the vertical rod and can slide along the vertical rod.

[0009] The connecting seat is equipped with a magnet, and the vertical rod is equipped with multiple Hall elements that can interact with the magnet to detect the height position of the upper horizontal rod assembly. The side wall of the vertical rod is equipped with through holes corresponding to the positions of the Hall elements.

[0010] The column includes a hollow column body, a lower base body at the lower end of the column body, an upper base body at the upper end of the column body, a lower crossbar assembly disposed between the lower base bodies, a control unit disposed within the upper base body, and a control panel disposed on the upper base body.

[0011] The upper seat is plugged into the column and a locking assembly is provided between them. The column has a longitudinal groove with an opening in the longitudinal direction on its side wall, and a transverse groove communicating with the longitudinal groove in the transverse direction on its side wall. The locking assembly includes a locking body. The upper seat has a mounting hole for the locking body to pass through. The inner end of the locking body has a protruding inner locking block, and the outer end of the locking body has a toggle button. When the upper seat is fitted onto the column, the locking body is vertically inserted into the longitudinal groove and can enter the transverse groove under the action of the toggle button. The inner locking block abuts against the inner side wall of the column. In addition, the upper and lower sides of the locking body are provided with sliding posts that can slide relative to it. An elastic element is provided between the sliding post and the locking body. The outer end of the sliding post abuts against the upper and lower surfaces of the mounting hole, and when the locking body enters the transverse groove, the outer end of the sliding post also abuts against the upper and lower surfaces of the transverse groove.

[0012] The control unit also includes a button control module, an infrared sensing module, and a buzzer alarm module.

[0013] The movable seat is provided with a protruding fixed post, and the end of the fixed post is provided with a convex cap protruding from its outer circumference. The two ends of the upper crossbar are provided with snap-fit ​​grooves that can be snapped into the convex cap and the fixed post from top to bottom. When the snap-fit ​​grooves are engaged with the convex cap and the fixed post, the upper crossbar, the convex cap and the fixed post can rotate relative to each other.

[0014] The locking assembly includes a locking hole on the movable seat, a locking pin slidably disposed within the connecting seat that can engage or disengage with the locking hole, a sliding seat slidably disposed within the movable seat, a push rod disposed on the sliding seat that can push the locking pin out of the locking hole, an exposed operating block disposed on the movable seat that can drive the push rod to push the locking pin, an inclined groove disposed on the operating block, and a protrusion disposed on the sliding seat that inserts into the inclined groove. When the operating block slides relative to the movable seat, the groove wall of the inclined groove pushes the protrusion, causing the sliding seat to slide towards the connecting seat. A first return spring is disposed between the operating block and the movable seat to push the operating block back to its original position, and a second return spring is disposed between the connecting seat and the locking pin to push the locking pin back to its original position.

[0015] The movable seat has an exposed pressing block on its upper side. The pressing block has a downwardly extending extension post. The extension post has a protruding blocking block on one side. A clearance groove is formed between the blocking block and the pressing block. The sliding seat has a protrusion that can be opposite to the blocking block or the clearance groove. When the protrusion is opposite to the blocking block, the blocking block can abut against the protrusion to prevent the sliding seat from sliding towards the connecting seat. When the pressing block is pressed down so that the clearance groove is opposite to the protrusion, the protrusion can enter the clearance groove and allow the sliding seat to slide towards the connecting seat. A third return spring is provided between the movable seat and the pressing block to push the pressing block to return to its original position.

[0016] A bed rail includes a rail frame as described above, with each upright connected to a rail unit perpendicular to the rail frame. Each rail unit includes vertical posts spaced apart from the uprights. A lower crossbar assembly is provided between the lower end of each vertical post and the lower end of an upright on the same side. An upper crossbar assembly is provided between the upper end of each vertical post and the upper end of an upright on the same side. A first vertical guide rod is provided inside each vertical post. A second vertical guide rod is connected to each upright. The upper crossbar assembly is slidably connected to the first and second guide rods. L-shaped support legs can also be detachably connected to the uprights and vertical posts.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The control unit of this utility model's guardrail and bed rail has a voice control module. After receiving a user's voice command, the control unit can start the motor, thereby driving the lead screw to rotate, causing the lead screw nut to move up and down. The connecting seat connected to the lead screw nut then moves up and down along with the movable seat, thus raising and lowering the upper crossbar assembly. Especially when the user is holding an infant or toddler inside the guardrail, there is no need to manually operate the upper crossbar assembly's raising and lowering switch; the raising and lowering of the upper crossbar assembly can be directly controlled by voice, making operation and use very convenient and quick. In addition, after the locking component is unlocked, the movable seat of the upper crossbar assembly can also be separated from the connecting seat. At this time, the movable seat can be raised and lowered independently, realizing manual raising and lowering operation of the upper crossbar assembly, giving the user multiple operation options, and also incorporating redundancy design in the product design to improve product reliability.

[0019] 2. In this invention, when the drive device drives the upper crossbar assembly to rise and fall, the connecting seat and the movable seat slide together along the vertical rod, and the vertical rod plays a guiding role to ensure that the upper crossbar assembly rises and falls smoothly. When the movable seat separates from the connecting seat and slides alone along the vertical rod, the vertical rod also plays a guiding role for the movable seat. Furthermore, when the connecting seat and the movable seat rise and fall together, the magnet in the connecting seat interacts with the Hall element in the vertical rod, and the control unit can identify the height position of the upper crossbar assembly, which is beneficial to the automatic control of the rise and fall of the upper crossbar assembly.

[0020] 3. This utility model also includes a button control module. Users can control the rotation of the lead screw in one of the columns to raise or lower one end of the upper crossbar assembly, or control the simultaneous rotation of the lead screws in both columns to raise or lower the entire upper crossbar assembly. The control unit also includes an infrared sensor module. In darkness or low light, the infrared sensor module can detect a user's presence, illuminating the buttons on the control panel for easy identification and operation. Additionally, the control unit includes a buzzer alarm that sounds when a hand is pinched, alerting the user to take timely action. [Attached Image Description]

[0021] Figure 1 This is a three-dimensional view of the bed rail of this utility model;

[0022] Figure 2 This is a side view of the guardrail frame of this utility model;

[0023] Figure 3 This is one of the exploded views of the components of the bed rail of this utility model;

[0024] Figure 4 This is a schematic diagram of the components of the bed rail of this utility model;

[0025] Figure 5 This is one of the perspective views of the components of the guardrail frame and bed rail of this utility model;

[0026] Figure 6 This is one of the exploded views of the components of the guardrail frame and bed rail of this utility model;

[0027] Figure 7 yes Figure 6 Enlarged view of point A in the middle;

[0028] Figure 8 This is one of the partial sectional views of the guardrail frame and bed rail of this utility model;

[0029] Figure 9 This is the second exploded view of the components of the guardrail frame and bed rail of this utility model;

[0030] Figure 10 This is the second perspective view of the components of the guardrail frame and bed rail of this utility model;

[0031] Figure 11 This is the third exploded view of the components of the guardrail frame and bed rail of this utility model;

[0032] Figure 12 This is the fourth exploded view of the components of the guardrail frame and bed rail of this utility model;

[0033] Figure 13 This is the third perspective view of the components of the guardrail frame and bed rail of this utility model;

[0034] Figure 14 yes Figure 13 Enlarged view at point B;

[0035] Figure 15 This is the fifth exploded view of the components of the guardrail frame and bed rail of this utility model;

[0036] Figure 16 The fourth perspective view of the components of the guardrail frame and bed rail of this utility model;

[0037] Figure 17 This is the second partial sectional view of the guardrail frame and bed rail of this utility model.

Detailed Implementation Methods

[0038] The present invention will be further described below with reference to the accompanying drawings:

[0039] like Figures 1 to 17 As shown, this invention provides a guardrail frame 100 and a bed rail using the guardrail frame 100. Its core function is that the height of the upper crossbar assembly 2 is electrically adjustable and can be controlled by voice, enabling convenient user operation and adapting to different usage scenarios and user needs. See the following description for details:

[0040] like Figures 1 to 4 As shown, the guardrail frame 100 mainly includes two vertically parallel columns 1 spaced apart from each other. An upper horizontal bar assembly 2 is provided between the upper ends of the two columns 1, and a lower horizontal bar assembly 3 is fixedly provided between their lower ends, together forming a stable rectangular frame body. In this embodiment, the columns 1 adopt a hollow design, which facilitates the arrangement and concealment of internal components, making the overall appearance simple and beautiful.

[0041] like Figures 5 to 12 As shown, to achieve smooth lifting and lowering of the upper crossbar assembly 2, each of the two columns 1 is equipped with a drive device 4. The drive device 4 includes a lead screw 41 vertically mounted inside the column 1, a motor 42 for driving the lead screw 41 to rotate, and a lead screw nut 43 connected to the lead screw 41. After the motor 42 starts, it drives the lead screw 41 to rotate, thereby causing the lead screw nut 43 to move up and down along the axial direction of the lead screw 41, which is the power source for height adjustment. To ensure the smoothness and straightness of the lifting process and prevent swaying, a vertical rod 51 serving as a guide 5 is fixedly installed on the inner side of the two columns 1. A connecting seat 44 is fixedly connected to the lead screw nut 43, and this connecting seat 44 is slidably sleeved on the vertical rod 51. Therefore, the up and down movement of the connecting seat 44 is simultaneously driven by the lead screw 41 and guided by the vertical rod 51, resulting in a precise and stable running trajectory, effectively improving the reliability and service life of the adjustment process.

[0042] like Figures 1 to 12As shown, the upper crossbar assembly 2 mainly includes an upper crossbar 21 and movable seats 22 connected to its two ends. The upper crossbar 21 and the movable seats 22 employ a connection structure that facilitates quick assembly / disassembly and angle adjustment: specifically, the movable seat 22 has a protruding fixed post 221, the end of which has a convex cap 222 with a diameter larger than the post body. Correspondingly, the upper crossbar 21 has snap-fit ​​grooves 211 opening downwards at both ends. During installation, simply align the snap-fit ​​grooves 211 with the convex caps 222 and the fixed post 221 and snap them in downwards to complete the connection. After engagement, the upper crossbar 21 can rotate relative to the axis of the fixed post 221. This design allows the user to adjust the height of one end of the upper crossbar assembly 2 independently without causing interference.

[0043] like Figures 5 to 12 As shown, the movable seat 22 and the connecting seat 44 of the drive device 4 are detachably connected by a locking component 23. In the locked state, the movable seat 22 is fixed to the connecting seat 44 and can be driven up and down by the drive device 4 together with the connecting seat 44. When unlocked, the movable seat 22 can be separated from the connecting seat 44, at which point the height of the upper crossbar assembly 2 can be manually adjusted independently, increasing the flexibility of use.

[0044] like Figure 6 As shown, the control drive device 4 includes a control unit 61 located within at least one column 1. This control unit 61 has a voice control module (not shown) to allow users to control the raising and lowering of the upper crossbar assembly 2 via voice commands. The control unit 61 is electrically connected to the motor 42. On the outer side of the column 1, a control panel 62 connected to the control unit 61 is located, allowing users to directly control the raising and lowering of the upper crossbar. Furthermore, at least one column 1 also contains a battery 63 to power the entire system. This battery 63 can be a rechargeable battery. The functionality of the control unit 61 can be further expanded. In addition to basic raising and lowering control, the control unit 61 can also integrate a button control module 612, an infrared sensing module 613, and a buzzer alarm module 614. Users can operate the system via buttons or by issuing voice commands through the voice control module, resulting in a high level of intelligence, especially convenient for users with hand disabilities or those operating at night. The infrared sensing module 613 can detect user movement in dark or low-light environments and trigger the control unit 61 to illuminate the backlight of the buttons on the control panel 62, facilitating clear identification and operation by the user. In addition, the control unit 61 is also equipped with a buzzer alarm 614, which will promptly issue a warning sound in case of accidents such as pinching a hand, so as to remind the user to take emergency measures.

[0045] This utility model relates to a guardrail frame 100 and bed rail. Users can send control commands via voice to start the motor 42, which in turn drives the upper crossbar assembly 2 to rise and fall via the lead screw 41, achieving intelligent voice-activated automated control. Simultaneously, the upper crossbar assembly 2 can be manually controlled to rise and fall independently without the drive device 4 being activated, allowing users to choose according to their needs. This combination of automatic and manual control improves product reliability. Furthermore, the upper crossbar 21 engages with the connecting seat 22 and can rotate relative to it, allowing users to lower one end of the upper crossbar assembly 2 without interference. In practice, users can control the descent of one end of the upper crossbar assembly 2 via voice or by using the corresponding buttons on the control panel 62, allowing users to choose according to their needs.

[0046] like Figure 6 and Figure 7 As shown, in order to accurately sense and control the stopping position of the upper crossbar assembly 2 and achieve intelligent height control, this embodiment embeds a magnet 45 inside the connecting seat 44, and simultaneously arranges multiple Hall elements 46 at intervals along the length of the vertical rod 51, which serves as the guide part 5. Through holes 511 corresponding to the positions of each Hall element 46 are provided on the side wall of the vertical rod 51 to reduce signal shielding. When the connecting seat 44 drives the magnet 45 to slide along the vertical rod 51, the Hall elements 46 can detect the change in the magnetic field of the magnet 45, thereby generating a position signal. The control unit 61 can accurately determine the real-time height of the upper crossbar based on these signals and control it to stop accurately at a preset position. This non-contact detection method is highly accurate, durable, and has a concealed structure, which does not affect the appearance or mechanical movement.

[0047] like Figure 5 , Figure 6 as well as Figure 12 As shown, the specific structure of the column 1 can be designed as a modular assembly to facilitate production, transportation, and maintenance. The column 1 includes a hollow column body 11 as the main body. The lower end of the column body 11 is fixedly connected to a lower base body 12 by means of snap-fit ​​or other means, and the lower crossbar assembly 3 is fixedly connected between the two lower base bodies 12 to enhance the stability of the bottom. The upper end of the column body 11 is connected to an upper base body 13. Preferably, electrical components such as the control unit 61 and the battery 63 are centrally installed inside the upper base body 13, while the control panel 62 is set on the outer surface of the upper base body 13. This layout centrally manages the circuitry, facilitating maintenance, while the control panel 62 is located at the top for easy user operation.

[0048] like Figures 13 to 15As shown, the upper seat 13 and the column 11 are connected by a clever plug-in locking structure. Specifically, a longitudinal groove 15 with a top opening and a transverse groove 16 communicating with the bottom of the longitudinal groove 15 are provided on the side wall of the column 11. A mounting hole 131 is provided at a corresponding position on the side wall of the upper seat 13. The locking assembly 14 includes a locking body 141, with a protruding inner locking block 142 at its inner end and a toggle button 143 at its outer end. The locking body 141 passes through the mounting hole 131, with the inner locking block 142 located inside the upper seat 13 and the toggle button 143 located outside the upper seat 13. During installation, the upper seat 13 is placed on the upper end of the column 11, so that the locking body 141 is inserted into the longitudinal groove 15 from top to bottom. Then, the toggle button 143 is slid to move the locking body 141 into the transverse groove 16. At this point, the inner locking block 142 will press firmly against the inner wall of the column 11, thus achieving a secure lock. Disassembly can be performed by reversing the operation. No tools are required for installation and disassembly, which is very convenient and facilitates quick assembly or opening of the upper seat 13 for internal maintenance.

[0049] like Figure 14 and Figure 15 As shown, to improve the stability and anti-loosening ability of the latch, sliding posts 144 are slidably arranged on the upper and lower sides of the latch body 141, and an elastic element 145 is provided between the sliding posts 144 and the latch body 141. Under normal conditions, under the action of the elastic element 145, the outer end of the sliding post 144 abuts against the inner surface of the mounting hole 131 to prevent the sliding post 144 from falling off. When the latch body 141 slides into the transverse groove 16, the outer end of the sliding post 144 pops out under the action of elasticity and abuts tightly against the upper and lower surfaces of the transverse groove 16, achieving a positioning effect and preventing the latch body 141 from accidentally slipping out of the transverse groove 16 due to vibration or other reasons.

[0050] like Figure 7 and Figure 8As shown, the locking assembly 23 is used to lock or separate the movable seat 22 from the connecting seat 44. A locking pin 232 is horizontally slidably disposed within the connecting seat 44, and tends to pop outward under the action of the second return spring 239. A corresponding locking hole 231 is provided on the movable seat 22. When the movable seat 22 is aligned with the connecting seat 44, the locking pin 232 automatically pops out under the spring force of the second return spring 239 and engages in the locking hole 231 of the movable seat 22, achieving automatic locking and reliable connection. When the drive device 4 is started, the connecting seat 44 and the movable seat 22 rise and fall together, thereby driving the upper crossbar assembly 2 to rise and fall. Unlocking requires operating the operating block 235 located on the movable seat 22. A first return spring 238 is provided between the operating block 235 and the movable seat 22, and a slanted groove 236 is provided on the operating block 235. A sliding seat 233 is slidably provided within the movable seat 22. The sliding seat 233 has a protrusion 237 that inserts into the inclined groove 236, and a push rod 234 facing the connecting seat 44. When the user slides the operating block 235 against the force of the first return spring 238, the groove wall of the inclined groove 236 pushes the protrusion 237, thereby moving the entire sliding seat 233 towards the connecting seat 44. The push rod 234 on the sliding seat 233 moves accordingly, pushing the locking pin 232 out of the locking hole 231, thus unlocking the device. After releasing the operating block 235, all components reset under the action of the first return spring 238 and the second return spring 239. When the user slides the operating block 235, the movable seat 22 can be separated from the connecting seat 44, allowing the upper crossbar assembly 2 to rise and fall independently without the drive device 4 being activated; this is manual operation.

[0051] like Figure 7 and Figure 8As shown, to prevent accidental unlocking caused by children accidentally touching or unconsciously touching the operating block 235 while asleep, this embodiment adds a safety locking mechanism. An exposed pressing block 23a is provided on the upper side of the movable seat 22, which is kept in an upward-protruding state by a third return spring 23f. An extension post 23b is connected below the pressing block 23a, and a protruding blocking block 23c is provided on one side of the extension post 23b. A clearance groove 23d is formed between the blocking block 23c and the pressing block 23a. The sliding seat 233 has a protrusion 23e that cooperates with the above structure. In the normal state (safety locked state), the protrusion 23e faces the blocking block 23c. At this time, if an attempt is made to slide the operating block 235, the movement of the sliding seat 233 will be immediately stopped because the protrusion 23e is blocked by the blocking block 23c, preventing unlocking and playing a crucial role in preventing accidental touch. When unlocking is required, the pressing block 23a must first be pressed, causing the recessed groove 23d to move down to the position opposite the protrusion 23e. Then, the operating block 235 is slid, allowing the protrusion 23e to slide smoothly into the space of the recessed groove 23d without obstruction, enabling the sliding seat 233 to move smoothly and complete the unlocking operation. This dual-operation logic of "press first, then slide" raises the barrier to entry and enhances security, effectively eliminating the risk of accidental unlocking, making it especially suitable for families with children.

[0052] This utility model also provides a bed rail using the aforementioned guardrail frame 100. For example... Figures 1 to 4 As shown, the bed rail includes a guardrail frame 100 as described above. Guardrail units 200 are vertically connected to the outside of each upright 1. The guardrail frame 100 and the two guardrail units 200 extend along the edge of the bed. Each guardrail unit 200 includes a vertical post 201 parallel to and spaced apart from the upright 1. A lower crossbar assembly 202 is fixedly connected between the lower end of the vertical post 201 and the upright 1 on the same side, and a liftable upper crossbar assembly 203 is connected between their upper ends. Specifically, a first guide rod 204 is provided inside the vertical post 201, and a second guide rod 205 is connected to the upright 1. The two ends of the upper crossbar assembly 203 are slidably connected to the first guide rod 204 and the second guide rod 205, respectively. In this embodiment, the lifting operation of the upper crossbar assembly 203 is set as a manual adjustment structure. Its locking with the upright 1 and the vertical post 201 can adopt a structure similar to the locking assembly 23 or other existing locking structures, which will not be described in detail here. To enhance the stability of the entire bed rail on the mattress and prevent tipping, L-shaped support legs 7 are detachably connected to the bottom of both the uprights 1 and the vertical posts 201. The horizontal portion of the support legs 7 can be inserted between the mattress and the bed frame, using the weight of the mattress to hold it in place, thus providing stable support.

[0053] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A guardrail frame (100), characterized in that: The system includes two spaced-apart columns (1), with an upper crossbar assembly (2) between the upper ends of the two columns (1) that can be raised and lowered relative to them, and a lower crossbar assembly (3) between the lower ends of the two columns (1). A drive device (4) is provided inside the two columns (1) to drive the upper crossbar assembly (2) to rise and fall. The drive device (4) includes lead screws (41) respectively installed in the two columns (1). A motor (42) is also provided inside the column (1) to drive the lead screws (41) to rotate. A lead screw nut (43) is connected to the lead screw (41) and can move up and down along it when it rotates. A connecting seat (44) is fixedly connected to the lead screw nut (43). The two columns (1) are respectively provided with a connecting seat (44) that allows the connecting seat (44) to move along it. The sliding guide (5) includes an upper crossbar assembly (2) comprising an upper crossbar (21), with movable seats (22) connected to both ends of the upper crossbar (21). The movable seats (22) and the connecting seats (44) are detachably connected and can slide up and down along the guide (5) alone or together with the connecting seats (44). A locking component (23) for locking the movable seats (22) and the connecting seats (44) is provided between them. At least one column (1) is also provided with a control unit (61) that is electrically connected to the drive device (4) and controls the lifting and lowering of the upper crossbar assembly (2). The control unit (61) has a voice control module. At least one column (1) is provided with an operation panel (62) on the outside. At least one column (1) is also provided with a battery (63) for power supply.

2. The guardrail frame (100) according to claim 1, characterized in that: The guide part (5) is a vertical rod (51) located inside the column (1). The connecting seat (44) and the movable seat (22) are sleeved on the vertical rod (51) and can slide along the vertical rod (51).

3. The guardrail frame (100) according to claim 2, characterized in that: The connecting seat (44) is provided with a magnet (45), and the vertical rod (51) is provided with a plurality of Hall elements (46) that can interact with the magnet (45) to detect the height position of the upper horizontal rod assembly (2). The side wall of the vertical rod (51) is provided with a through hole (511) corresponding to the position of the Hall element (46).

4. The guardrail frame (100) according to claim 1, characterized in that: The column (1) includes a hollow column (11), the lower end of the column (11) is provided with a lower seat (12), the upper end of the column (11) is provided with an upper seat (13), the lower crossbar assembly (3) is disposed between the lower seats (12), the control unit (61) is disposed inside the upper seat (13), and the control panel (62) is disposed on the upper seat (13).

5. The guardrail frame (100) according to claim 4, characterized in that: The upper seat (13) is plugged into the column (11) and a locking assembly (14) is provided between them. The column (11) has a longitudinal groove (15) with an opening in the longitudinal direction on its side wall. The column (11) also has a transverse groove (16) communicating with the longitudinal groove (15) in the transverse direction on its side wall. The locking assembly (14) includes a locking body (141). The upper seat (13) has a mounting hole (131) for the locking body (141) to pass through on its side wall. The inner end of the locking body (141) has a protruding inner locking block (142). The outer end of the locking body (141) has a toggle button (143). The upper seat (13) is fitted onto the column (11). When the latch body (141) is inserted vertically into the longitudinal groove (15) and can enter the transverse groove (16) under the action of the toggle button (143), and the inner latch block (142) abuts against the inner side wall of the column (11). In addition, the latch body (141) is provided with sliding posts (144) on the upper and lower sides, which can slide relative to it. An elastic element (145) is provided between the sliding post (144) and the latch body (141). The outer end of the sliding post (144) abuts against the upper and lower surfaces of the mounting hole (131), and when the latch body (141) enters the transverse groove (16), the outer end of the sliding post (144) also abuts against the upper and lower surfaces of the transverse groove (16).

6. The guardrail frame (100) according to claim 1, characterized in that: The control unit (61) also includes a button control module (612), an infrared sensing module (613), and a buzzer alarm module (614).

7. The guardrail frame (100) according to claim 1, characterized in that: The movable seat (22) is provided with a protruding fixed post (221). The fixed post (221) has a convex cap (222) protruding from its outer circumference at its end. The upper crossbar (21) has a snap-fit ​​groove (211) at both ends that can be snapped into the convex cap (222) and the fixed post (221) from top to bottom. When the snap-fit ​​groove (211) is engaged with the convex cap (222) and the fixed post (221), the upper crossbar (21) can rotate relative to the convex cap (222) and the fixed post (221).

8. The guardrail frame (100) according to claim 1, characterized in that: The locking assembly (23) includes a locking hole (231) on the movable seat (22), a locking pin (232) that can engage or disengage from the locking hole (231) is slidably provided in the connecting seat (44), a sliding seat (233) is slidably provided in the movable seat (22), a push rod (234) that can push the locking pin (232) out of the locking hole (231) is provided on the sliding seat (233), and an exposed operating block (235) that can drive the push rod (234) to push the locking pin (232) is provided on the movable seat (22). The operating block (235) is provided with The sliding seat (233) has a groove (236) and a protrusion (237) that inserts into the groove (236). When the operating block (235) slides relative to the movable seat (22), the groove wall of the groove (236) pushes the protrusion (237) to make the sliding seat (233) slide towards the connecting seat (44). A first return spring (238) is provided between the operating block (235) and the movable seat (22) to push the operating block (235) back to its original position. A second return spring (239) is provided between the connecting seat (44) and the locking pin (232) to push the locking pin (232) back to its original position.

9. The guardrail frame (100) according to claim 8, characterized in that: The movable seat (22) has an exposed pressing block (23a) on its upper side. The pressing block (23a) has a downwardly extending extension post (23b). The extension post (23b) has a protruding blocking block (23c) on one side. A clearance groove (23d) is formed between the blocking block (23c) and the pressing block (23a). The sliding seat (233) has a protrusion (23e) that can be opposite to the blocking block (23c) or the clearance groove (23d). When the protrusion (23e) is opposite to the blocking block (23c)... When the blocking block (23c) abuts against the protrusion (23e) to prevent the sliding seat (233) from sliding towards the connecting seat (44), when the pressing block (23a) is pressed down so that the relief groove (23d) is opposite to the protrusion (23e), the protrusion (23e) can enter the relief groove (23d) so that the sliding seat (233) slides towards the connecting seat (44). A third return spring (23f) is provided between the movable seat (22) and the pressing block (23a) to push the pressing block (23a) to return to its original position.

10. A bed rail, characterized in that: The guardrail frame (100) as described in any one of claims 1 to 9 is provided, and each post (1) is further connected to a guardrail unit (200) perpendicular to the guardrail frame (100). The guardrail unit (200) includes vertical posts (201) spaced apart from the posts (1). A lower horizontal stop assembly (202) is provided between the lower end of the vertical post (201) and the post (1) on the same side. An upper horizontal stop assembly (203) is provided between the upper end of the vertical post (201) and the post (1) on the same side. A vertical first guide rod (204) is provided on the inner side of the vertical post (201). A vertical second guide rod (205) is connected to the post (1). The upper horizontal stop assembly (203) is slidably connected to the first guide rod (204) and the second guide rod (205). An L-shaped support foot (7) is also detachably connected to the post (1) and the vertical post (201).

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