Adjustable guard rail and bed

Abstract

This application discloses an adjustable guardrail and bed, wherein the adjustable guardrail includes a fixing member, a blocking member, and a telescopic member; the fixing member is used to fix the adjustable guardrail and includes a fixing connecting part; the blocking member includes a blocking connecting part; the fixing member is movably connected to the telescopic member through the fixing connecting part, and the blocking member is connected to the telescopic member through the blocking connecting part. The fixing member and the blocking member can move closer to or further away from each other under the action of the telescopic member. The adjustable guardrail is fixedly installed on the bed frame by the fixing member, and the adjustable guardrail can prevent the mattress from shifting and slipping off the bed frame. The blocking member of the adjustable guardrail can gradually move closer to or further away from the fixing member under the action of the telescopic member to adapt to different sizes of mattresses or bed frames.

Description

Technical Field

[0001] This application relates to the field of furniture, and in particular to an adjustable guardrail and bed. Background Technology

[0002] Beds, mattresses, and their accompanying guardrails are indispensable furniture items in consumers' daily lives. The main function of guardrails is to be installed on the side of a flush-fitting bed (where the side of the mattress and the outer side of the bed frame are on the same vertical plane) to provide protection and prevent the mattress from sliding on the bed frame. However, most existing guardrails can only limit the mattress in one direction, typically located at the foot of the bed, limiting the mattress along the length of the bed. When the user sits up or turns over, the mattress may still slide along the width of the bed, indicating an incomplete anti-slip function. Furthermore, existing guardrails suffer from poor versatility; their structure is often fixed, and one type of guardrail usually only fits a specific size of bedding. This forces consumers to take precise measurements when purchasing, and once they change to a different size of bedding, the original guardrail becomes unusable, causing inconvenience and financial waste. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an adjustable guardrail that can limit the mattress in all directions and can adapt to different bedding.

[0004] An adjustable guardrail according to one embodiment of this application includes: a fixing member for fixing the adjustable guardrail, the fixing member including a fixing connection portion; a blocking member including a blocking connection portion; and a telescopic member, the telescopic member being arranged along a first direction and / or along a second direction; wherein the fixing member is movably connected to the telescopic member through the fixing connection portion, the blocking member is connected to the telescopic member through the blocking connection portion, and the fixing member and the blocking member can move closer to or further away from each other under the action of the telescopic member.

[0005] According to one embodiment of this application, the telescopic member includes a right-hand telescopic hole and a left-hand telescopic hole. The right-hand telescopic hole is provided with a right-hand thread, and the left-hand telescopic hole is provided with a left-hand thread. The right-hand telescopic hole and the left-hand telescopic hole are coaxially arranged. The fixed connection part is formed as a screw with a right-hand thread, and the blocking connection part is formed as a screw with a left-hand thread. The fixed connection part is movably connected to the right-hand telescopic hole, and the blocking connection part is movably connected to the left-hand telescopic hole.

[0006] According to one embodiment of this application, the telescopic member includes a right-hand telescopic hole and a left-hand telescopic hole. The right-hand telescopic hole is provided with a right-hand thread, and the left-hand telescopic hole is provided with a left-hand thread. The right-hand telescopic hole and the left-hand telescopic hole are coaxially arranged. The fixed connection part is formed as a screw with a left-hand thread, and the blocking connection part is formed as a screw with a right-hand thread. The fixed connection part is movably connected to the left-hand telescopic hole, and the blocking connection part is movably connected to the right-hand telescopic hole.

[0007] According to one embodiment of this application, the adjustable guardrail includes two movable members; two fixed members and two telescopic members; the blocking member is formed as an angled bent rod, and the blocking member includes a bent portion, a first blocking portion and a second blocking portion, the first blocking portion and the second blocking portion are connected through the bent portion, and each of the first blocking portion and the second blocking portion is connected to a telescopic member at one end away from the bent portion; one end of each of the two fixed members is connected to one of the telescopic members; the two ends of the bent portion are respectively connected to the first blocking portion and the second blocking portion through the movable members.

[0008] According to one embodiment of this application, the movable part includes a sleeve and an elastic member. The elastic member is located inside the sleeve and can undergo elastic deformation along the sleeve. The bending part is connected to a first blocking part and / or a second blocking part through the elastic member. The first blocking part and the second blocking part are both fixedly connected to a sleeve at one end near the bending part. The end of the sleeve located at the bending part is sleeved on the bending part.

[0009] According to one embodiment of this application, the bent portion is provided with limit rings at both ends, and the sleeve located at one end of the bent portion can abut against the limit rings.

[0010] According to one embodiment of this application, a connector is included. The connector is formed as an angled bent rod. The connector is arranged along a first direction and the other end is arranged along a second direction. A telescopic member is movably connected to each end of the connector. One end of the connector is connected to a blocking member through the telescopic member, and the other end is connected to a fixing member through the telescopic member.

[0011] The bed according to another embodiment of this application includes the aforementioned adjustable guardrails.

[0012] According to another embodiment of this application, the bed includes a bed frame, the bed frame includes multiple bed frame rods, the multiple bed frame rods together form the outer contour of the bed, and multiple adjustable guardrails are provided. The multiple adjustable guardrails are evenly installed on the bed frame rods, and the fixing parts and blocking parts of the adjustable guardrails are close to or far from each other to adapt to the width of the bed frame rods.

[0013] According to another embodiment of this application, the bed includes a mattress placed on a bed frame post, and adjustable guardrail fasteners and barriers are brought closer together or further apart to accommodate the length, width and thickness of the mattress.

[0014] The adjustable guardrail according to the embodiments of this application has at least the following beneficial effects: the adjustable guardrail is fixedly installed on the bed frame by a fastener, the adjustable guardrail can prevent the mattress from shifting and slipping off the bed frame, and the blocking part of the adjustable guardrail can gradually move closer to or away from the fastener under the action of the telescopic part, so as to adapt to mattresses or bed frames of different sizes.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of an adjustable guardrail according to one embodiment of this application; Figure 2 for Figure 1 A top-view diagram of the adjustable guardrail; Figure 3 This is a schematic diagram illustrating another embodiment of the adjustable guardrail according to one aspect of this application. Figure 4 This is a schematic diagram illustrating yet another embodiment of the adjustable guardrail according to one aspect of this application; Figure 5 for Figure 4 A side view of the adjustable guardrail; Figure 6 This is a structural schematic diagram of the expansion joint; Figure 7 This is a schematic diagram of the structure of a bed according to another embodiment of this application; Figure 8 This is a schematic diagram of the adjustable guardrail section of one embodiment of this application.

[0017] Figure label: 1000 Adjustable guardrails; 2000 Bed frame; 100. Fixing component; 110. Fixing hole; 120. Fixing connection part; 200. Blocking component; 210. Blocking connection part; 220. First blocking part; 230. Bending part; 240. Second blocking part; 300. Telescopic component; 310. Orthogonal telescopic hole; 320. Reverse telescopic hole; 400. Connecting component; 410. First connecting part; 420. Second connecting part; 500. Moving part; 510. Sleeve; 520. Elastic component. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0022] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] The following is for reference. Figures 1 to 8 This application describes an adjustable guardrail 1000 according to an embodiment of the present application.

[0024] It is worth noting that, with Figure 1 Taking the three-dimensional rectangular coordinate system as an example, the plane formed by the X-axis and Y-axis is the horizontal plane, the direction of the Z-axis is the up and down direction, the positive direction of the Z-axis points upward, and the negative direction of the Z-axis points downward. In the embodiment of this application, the first direction is the horizontal direction and the second direction is the height direction.

[0025] Please see Figure 1and Figure 2 One embodiment of the adjustable guardrail 1000 includes: a fixing member 100 for fixing the adjustable guardrail 1000, the fixing member 100 including a fixing connection part 120; a blocking member 200 including a blocking connection part 210; and a telescopic member 300, the telescopic member 300 being arranged in a horizontal direction. The fixing member 100 and the blocking member 200 are movably connected to the telescopic member 300 through the fixing connection part 120 and the blocking connection part 210, respectively. The fixing member 100 and the blocking member 200 can move closer to each other or further away from each other under the action of the telescopic member 300. The telescopic member 300 includes a right-hand telescopic hole 310 and a left-hand telescopic hole 320. The right-hand telescopic hole 310 has a right-hand thread, and the left-hand telescopic hole 320 has a left-hand thread. The bore axis of the right-hand telescopic hole 310 is consistent with the bore axis of the left-hand telescopic hole 320. Correspondingly, the fixed connection part 120 is formed as a screw with a right-hand thread, and the blocking connection part 210 is formed as a screw with a left-hand thread. The fixed connection part 120 is movably connected to the right-hand telescopic hole 310, and the blocking connection part 210 is movably connected to the left-hand telescopic hole 320. Alternatively, the fixed connection part 120 is formed as a screw with a left-hand thread, and the blocking connection part 210 is formed as a screw with a right-hand thread. The fixed connection part 120 is movably connected to the left-hand telescopic hole 320, and the blocking connection part 210 is movably connected to the right-hand telescopic hole 310.

[0026] In other words, such as Figure 1 and Figure 2As shown, the adjustable guardrail 1000 includes, from top to bottom, a blocking member 200, a telescopic member 300, and a fixing member 100. The lower end of the fixing member 100 has a slotted through hole through which bolts can pass to fix the adjustable guardrail 1000 to the bed frame 2000. The upper end of the fixing member 100 is provided with a fixing connection part 120, which is formed with a left-hand thread. The telescopic member 300 is formed as a threaded double-hole sleeve. The telescopic member 300 is arranged horizontally and includes a right-hand telescopic hole 310 and a left-hand telescopic hole 320. The right-hand telescopic hole 310 has a right-hand thread, and the left-hand telescopic hole 320 has a left-hand thread. The bore axes of the right-hand telescopic hole 310 and the left-hand telescopic hole 320 are on the same straight line. The telescopic hole 320 is threadedly connected to the fixed connection part 120; the blocking member 200 has a right-hand thread on its blocking connection part 210, and is connected to the right-hand telescopic hole 310 of the telescopic member 300 through the blocking connection part 210. By operating the telescopic member 300 to rotate around the hole axis, the telescopic member 300 and its movably connected blocking member 200 are driven to move. When the telescopic member 300 moves away from the fixed member 100, the blocking member 200 also moves away from the telescopic member 300, thereby increasing the horizontal distance between the blocking member 200 and the fixed member 100; when the telescopic member 300 moves closer to the fixed member 100, the blocking member 200 also moves closer to the telescopic member 300, thereby decreasing the horizontal distance between the blocking member 200 and the fixed member 100. The blocking member 200 of the adjustable guardrail 100 can gradually move closer to or away from the fixed member 100 in the horizontal direction under the action of the telescopic member 300 to adapt to different specifications of bed frame 2000.

[0027] It is understood that the fixed connection part 120 can be formed as a screw with a left-hand thread, and the blocking connection part 210 can be formed as a screw with a right-hand thread. The fixed connection part 120 is movably connected to the reverse thread telescopic hole 320, and the blocking connection part 210 is movably connected to the straight thread telescopic hole 310. Similarly, the blocking part 200 can be moved closer to or away from the fixed part 100 by operating the telescopic part 300. The only difference is that, in order to achieve the same effect, the direction of rotating the telescopic part 300 is opposite to the direction of the above solution.

[0028] like Figure 6 As shown in the above embodiments, the telescopic part can be formed as a cylindrical tubular part with blind holes at both ends, or as a hexagonal prism tubular part with blind holes at both ends. Since the telescopic part needs to rotate around its axis, the hexagonal prism telescopic part 300 is easier to hold and rotate than the cylindrical part.

[0029] In addition, the telescopic member 300 can also be formed as a rod with threads at both ends, with the threads at both ends rotating in opposite directions. Correspondingly, the fixed connection part 120 and the blocking connection part 210 are set as threaded holes, and the threads of the two threaded holes also rotate in opposite directions. In this way, the distance between the fixed member 100 and the blocking member 200 can be adjusted by rotating the telescopic member 300 in one clockwise direction.

[0030] In some embodiments, the connection between the telescopic member 300, the fixing member 100, and the blocking member 200 can be a non-threaded connection. For example, the telescopic member 300 may include upper and lower guide grooves and a gear. The gear is located between the two guide grooves, which are respectively located above and below the gear. The fixing connection portion 120 of the fixing member 100 and the blocking fixing portion of the blocking member 200 are both formed as racks. The two racks enter the guide grooves in opposite directions. After entering the guide grooves, the racks can mesh with the gear. When the gear is rotated about the gear axis, the two racks can move closer to or further away from each other, thereby enabling the blocking member 200 to move closer to or further away from the fixing member 100, thus changing the distance between the blocking member 200 and the fixing member 100 to accommodate mattresses or bed frames 2000 of different specifications. Of course, there are also some other telescopic member 300 structures that can synchronously drive the blocking member 200 and the fixing member 100 to move closer to or further away from each other, such as scissor linkage structures, synchronous pulley-synchronous belt structures, etc. However, since they are well known to those skilled in the art and their structures are relatively complex, they will not be described in detail here.

[0031] In some embodiments, such as Figure 1 , Figure 2 and Figure 8As shown, the adjustable guardrail 1000 includes two movable members 500, the two ends of which can move away from or closer to each other; there are also two fixed members 100 and two telescopic members 300; the blocking member 200 is formed as an angled bent rod, including a bent portion 230, a first blocking portion 220 and a second blocking portion 240, which are connected by the bent portion 230. Each of the first and second blocking portions 220 and 240 is connected to a telescopic member 300 at its end furthest from the bent portion 230. Each of the two fixed members 100 has one end connected to one of the telescopic members 300. The two ends of 0 are respectively connected to the first blocking part 220 and the second blocking part 240 through the movable part 500. The movable part 500 includes a sleeve 510 and an elastic part 520. The elastic part 520 is located inside the sleeve 510 and can undergo elastic deformation along the sleeve 510. The bending part 230 is connected to the first blocking part 220 and / or the second blocking part 240 through the elastic part 520. The first blocking part 220 and the second blocking part 240 are both fixedly connected to the sleeve 510 at one end near the bending part 230. The end of the sleeve 510 located in the bending part 230 is sleeved on the bending part 230. The bending part 230 is provided with limit rings at both ends. The end of the sleeve 510 located in the bending part 230 can abut against the limit ring.

[0032] In other words, the blocking member 200 is formed as a rod bent at a certain angle, including a bent part 230, a first blocking part 220 and a second blocking part 240. The bent part 230 is formed as an arc-shaped rod. The first blocking part 220 and the second blocking part 240 are respectively connected to the two ends of the bent part 230 through the movable part 500. The first blocking part 220 and the second blocking part 240 are symmetrical about the bent part 230. The two fixed parts 100 and the two telescopic parts 300 are also symmetrically arranged about the bent part 230. In this way, the adjustable guardrail 1000 can be adjusted in two different horizontal directions to adapt to different specifications of bed frames 2000. The width of the bed frame in the horizontal direction is different for different specifications of bed frames. The larger the width of the bed frame, the greater the distance between the blocking connection part 210 and the fixed connection part 120 in the horizontal direction.

[0033] When simultaneously adjusting the two telescopic components 300 to move the blocking component 200 away from the fixed component 100 in two horizontal directions, the blocking component 200 is prone to deformation. To avoid this situation, such as... Figure 8As shown, the structure of the movable part 500 is described in detail below, taking the connection between the second blocking part 240 and the bending part 230 as an example. The movable part 500 includes a sleeve 510 and an elastic member 520 located inside the sleeve 510. The elastic member 520 is formed as a spring, and the two ends of the spring are respectively welded and fixed to the second blocking part 240 and the bending part 230 to elastically connect the bending part 230 and the second blocking part 240. In this way, when the telescopic member 300 is rotated to make the blocking member 200 gradually move away from the fixed member 100, the bending part 230 of the blocking member 200 gradually overcomes the spring force and moves away from the second blocking part 240. Correspondingly, the connection between the first blocking part 220 and the bending part 230, which is symmetrical to the above structure, is also the same.

[0034] Furthermore, to limit the maximum travel distance of the bent portion 230 from the fixed member 100, a sleeve 510 is fixedly connected to one end of the second blocking portion 240 near the bent portion 230. The sleeve 510 is fitted onto the bent portion 230 at one end, and a limit ring is provided at the end of the bent portion 230 near the second blocking portion 240. The end of the sleeve 510 located on the bent portion 230 can abut against the limit ring, thus forming the maximum travel distance of the bent portion 230. That is, the maximum length of the spring is equal to the length of the sleeve 510. It can be understood that when the spring length is less than the length of the sleeve 510, the spring deformation is not limited by the limit ring. Correspondingly, the connection between the first blocking portion 220 and the bent portion 230, which is symmetrical to the above structure, is handled similarly.

[0035] Therefore, when the blocking member 200 is installed on the bed frame 2000, it can limit the mattress in two horizontal directions of the bed frame 2000.

[0036] In some embodiments, such as Figure 3 As shown, the telescopic member 300 is vertically arranged along the height direction. The upper end of the telescopic member 300 is connected to the blocking member 200, and the lower end is connected to the fixing member 100. By operating the telescopic member 300 to rotate around the hole axis, the telescopic member 300 and its movably connected blocking member 200 are moved. When the telescopic member 300 moves away from the fixing member 100 in the height direction, the blocking member 200 also moves away from the telescopic member 300, thereby increasing the vertical distance between the blocking member 200 and the fixing member 100. When the telescopic member 300 moves closer to the fixing member 100 in the height direction, the blocking member 200 also moves closer to the telescopic member 300, thereby decreasing the vertical distance between the blocking member 200 and the fixing member 100. The blocking member 200 of the adjustable guardrail 100 can gradually move closer to or further away from the fixing member 100 in the height direction under the action of the telescopic member 300 to accommodate mattresses of different thicknesses. The greater the mattress thickness, the greater the distance between the blocking connection 210 and the fixing connection 120 in the height direction.

[0037] In some embodiments, such as Figure 4 and Figure 5 As shown, the adjustable guardrail 1000 includes a connector 400, which is formed as an angled bent rod. One end of the connector 400 is in a first direction and the other end is in a second direction. A telescopic member 300 is movably connected to each end of the connector 400. The connector 400 is connected to a blocking member 200 and a fixing member 100 through the telescopic members 300 at both ends. The blocking member 200 can move relative to the fixing member 100 in the first direction and the second direction, with the first direction being perpendicular to the second direction.

[0038] In other words, such as Figure 4 As shown, the lower end of the connector 400 is designated as a first connecting portion 410, which is formed as a right-hand threaded screw. The upper end of the connector 400 is designated as a second connecting portion 420, which is also formed as a right-hand threaded screw. The lower end of the connector 400 is movably connected in the horizontal direction to the right-hand threaded telescopic hole 310 of one telescopic member 300, and the upper end of the connector 400 is movably connected in the vertical direction to the right-hand threaded telescopic hole 310 of another telescopic member 300. The other end of the telescopic member 300 in the horizontal direction is a reverse threaded telescopic hole 320, which is used to movably connect to the fixing member 100. The fixing connecting portion 120 of the fixing member 100 is correspondingly formed as a left-hand threaded screw. The other end of the telescopic member 300 in the vertical direction is also a reverse threaded telescopic hole 320, which is used to movably connect to the blocking member 200. The blocking connecting portion 210 of the blocking member 200 is correspondingly formed as a left-hand threaded screw. With this configuration, the blocking member 200 can move away from or closer to the fixing member 100 in the horizontal direction, and also move away from or closer to the fixing member 100 in the vertical direction, so as to accommodate mattresses or bed frames 2000 of different sizes.

[0039] In some embodiments, such as Figure 1 and Figure 4 As shown, the fixing member 100 is formed as an angled bent rod, one end of which is used to fix the adjustable guardrail 1000, and the other end is movably connected to the telescopic member 300. That is, the fixing end of the fixing member 100 extends along the height direction and is provided with a fixing hole 110 formed as a waist-shaped through hole. The fixing hole 110 allows fasteners to pass through, and the fasteners can fix the fixing member 100 to the inside of the bed frame 2000, which can avoid affecting the flatness of the mattress located above the bed frame 2000. The fixing end of the fixing member 100 for movably connecting to the telescopic member 300 extends in the horizontal direction.

[0040] Please refer to Figure 7(The mattress is not shown in the figure.) In another embodiment of this application, the bed includes the aforementioned adjustable guardrail 1000, bed frame 2000, and mattress. The bed frame 2000 includes multiple bed frame rods, which together form the outer contour of the bed. Multiple adjustable guardrails 1000 are provided, and the multiple adjustable guardrails 1000 are evenly installed on the bed frame rods. The fixing members 100 and blocking members 200 of the adjustable guardrails 1000 are close to or far away from each other to adapt to the width of the bed frame rods. The mattress is placed on the bed frame rods, and the fixing members 100 and blocking members 200 of the adjustable guardrails 1000 are close to or far away from each other to adapt to the length, width, and thickness of the mattress.

[0041] In other words, the bed consists of a bed frame 2000, retractable guardrails, and a mattress from bottom to top. The bed frame 2000 is composed of four frame rods forming a rectangular outline of the bed. Four mattress guardrails are located at the four corners of the bed frame 2000. Each mattress guardrail has two fasteners 100 fixed to the inner side of the frame rod. The other end of the fastener 100 is used to movably connect to the fixed connection part 120 of the telescopic member 300, which is located on the top surface of the frame rod. The mattress is placed on top of the bed frame 2000. On the one hand, by adjusting the horizontal distance between the blocking member 200 and the fastener 100 in the mattress guardrail, the mattress guardrail can be adapted to different... The adjustable guardrail 1000 can accommodate mattresses of different widths, with bed frame rods of the same width and mattresses of different widths. On the other hand, by adjusting the vertical distance between the blocking member 200 and the fixing member 100 in the mattress guardrail, the mattress guardrail can be adapted to mattresses of different thicknesses. This gives the adjustable guardrail 1000 a strong adaptability, enabling it to adapt to mattresses or bed frames 2000 of different sizes. Users can directly use the adjustable guardrail 1000 without the need for precise measurement of the dimensions of the bed frame 2000 and the mattress. The adjustable guardrail 1000 provides convenience for users and avoids unnecessary waste caused by using other guardrails when changing mattresses or bed frames 2000.

[0042] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application 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 this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. An adjustable guardrail, characterized in that, include: A fastener for securing an adjustable guardrail, the fastener including a fixing connection part; A blocking component, including a blocking connection portion; A telescopic member, wherein the telescopic member is disposed along a first direction and / or along a second direction; The fixing member is movably connected to the telescopic member through the fixing connection part, and the blocking member is connected to the telescopic member through the blocking connection part. The fixing member and the blocking member can move closer to each other or further away from each other under the action of the telescopic member.

2. The adjustable guardrail according to claim 1, characterized in that, The telescopic component includes a right-hand telescopic hole and a left-hand telescopic hole. The right-hand telescopic hole has a right-hand thread, and the left-hand telescopic hole has a left-hand thread. The right-hand telescopic hole and the left-hand telescopic hole are coaxially arranged. The fixed connection part is formed as a screw with a right-hand thread, and the blocking connection part is formed as a screw with a left-hand thread. The fixed connection part is movably connected to the right-hand telescopic hole, and the blocking connection part is movably connected to the left-hand telescopic hole.

3. The adjustable guardrail according to claim 1, characterized in that, The telescopic component includes a right-hand telescopic hole and a left-hand telescopic hole. The right-hand telescopic hole has a right-hand thread, and the left-hand telescopic hole has a left-hand thread. The right-hand telescopic hole and the left-hand telescopic hole are coaxially arranged. The fixed connection part is formed as a screw with a left-hand thread, and the blocking connection part is formed as a screw with a right-hand thread. The fixed connection part is movably connected to the left-hand telescopic hole, and the blocking connection part is movably connected to the right-hand telescopic hole.

4. The adjustable guardrail according to claim 1, characterized in that, The device includes two movable components; two fixed components and two telescopic components; a blocking component formed as an angled bent rod, comprising a bent portion, a first blocking portion and a second blocking portion, the first blocking portion and the second blocking portion being connected through the bent portion, and each of the first blocking portion and the second blocking portion being connected to a telescopic component at an end away from the bent portion; one end of each of the two fixed components being connected to one of the telescopic components; and the two ends of the bent portion being connected to the first blocking portion and the second blocking portion respectively through the movable components.

5. The adjustable guardrail according to claim 4, characterized in that, The movable part includes a sleeve and an elastic element. The elastic element is located inside the sleeve and can undergo elastic deformation along the sleeve. The bending part is connected to the first blocking part and / or the second blocking part through the elastic element. The sleeve is fixedly connected to one end of the first blocking part and the second blocking part near the bending part. The end of the sleeve located on the bending part is sleeved on the bending part.

6. The adjustable guardrail according to claim 5, characterized in that, The bent portion is provided with limit rings at both ends, and the sleeve located at one end of the bent portion can abut against the limit ring.

7. The adjustable guardrail according to claim 4, characterized in that, The device includes a connector, which is formed as an angled bent rod. The connector is arranged along a first direction and the other end is arranged along a second direction. Each end of the connector is movably connected to a telescopic member. One end of the connector is connected to the blocking member through the telescopic member, and the other end is connected to the fixing member through the telescopic member.

8. A bed, characterized in that, Including the adjustable guardrail as described in any one of claims 1 to 7.

9. The bed according to claim 8, characterized in that, The bed includes a bed frame with multiple bed frame rods that together form the outer contour of the bed. Multiple adjustable guardrails are provided and are evenly installed on the bed frame rods. The fixing members and blocking members of the adjustable guardrails are close to or far from each other to adapt to the width of the bed frame rods.

10. The bed according to claim 9, characterized in that, The bed includes a mattress placed on the bed frame rod, wherein the fixing members and the blocking members of the adjustable guardrail are close to or far apart from each other to accommodate the length, width and thickness of the mattress.

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