Baby crib guardrail

Abstract

The utility model discloses a crib guardrail which comprises two stand columns, first connecting blocks are arranged at the upper ends of the two stand columns respectively, second connecting blocks are arranged at the lower ends of the two stand columns respectively, sliding rods are arranged between the first connecting blocks and the second connecting blocks on the two stand columns respectively, and sliding blocks are arranged on the two sliding rods respectively in a sliding mode. First folding rods are hinged to the two sliding blocks correspondingly, a first connecting sleeve is arranged between the two first folding rods, the two ends of the first connecting sleeve are hinged to one ends of the two first folding rods correspondingly, second folding rods are hinged to the two second connecting blocks correspondingly, and a second connecting sleeve is arranged between the two second folding rods. The two ends of the second connecting sleeve are hinged to one ends of the two second folding rods respectively, L-shaped fixing plates are detachably arranged at the lower ends of the two stand columns respectively, the baby crib guardrail is of an integrated and foldable structure, a user only needs to unfold the guardrail and insert the fixing plates into the guardrail when using the baby crib guardrail, and use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of baby cribs, in particular to a baby crib guardrail. Background Art

[0002] In the prior art, in order to prevent a child from falling out of the crib while sleeping, a guardrail is usually placed on the side of the crib to prevent the baby from falling out of the bed. The existing crib guardrail is usually composed of an upper and lower connecting rod, a left and right side support rod and a bottom support rod. After use, it is disassembled and stored. However, such a guardrail structure has the following defects: in order to facilitate packaging and transportation, it is usually composed of split parts. After the user purchases it, the cloth and the support rod need to be assembled before use. Therefore, it is inconvenient to use and store. Although there are some foldable guardrails in the prior art, due to its structure, the volume of the entire guardrail after folding is still very large, thereby occupying too much space in the user's home. Utility Model Content

[0003] In view of the above problems existing in the prior art, the baby crib guardrail provided by the utility model is used to overcome the defects in the prior art.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0005] A baby crib guardrail comprises two uprights, wherein the upper ends of the two uprights are respectively provided with a first connecting block, and the lower ends are respectively provided with a second connecting block, a sliding rod is respectively provided between the first connecting block and the second connecting block on the two uprights, a sliding block is respectively provided on the two sliding bars for sliding movement, a first folding rod is respectively hinged on the two sliding blocks, a first connecting sleeve is provided between the two first folding rods, and the two ends of the first connecting sleeve are respectively hinged to one end of the two first folding rods, a second folding rod is respectively hinged on the two second connecting blocks, a second connecting sleeve is provided between the two second folding rods, and the two ends of the second connecting sleeve are respectively hinged to one end of the two second folding rods, and an "L"-shaped fixing plate is respectively detachably provided at the lower ends of the two uprights.

[0006] In one of the embodiments: connecting rings are respectively provided on one end of the two first folding rods connected to the slider, and positioning pins are respectively provided on one end of the two sliders connected to the first folding rod, and the two connecting rings are correspondingly sleeved on the outside of the two positioning pins.

[0007] In one of the embodiments: the positioning pin is vertically arranged on the front side wall of the sliding block.

[0008] In one of the embodiments: a rearwardly recessed step is provided on the front side wall of one end of the two sliders connected to the first folding rod, the positioning pin is vertically provided on the front side wall of the step, and the front side wall of the connecting ring is flush with the front side wall of the slider.

[0009] In one embodiment, the two positioning pins are respectively provided with a first positioning ring and a second positioning ring, the first positioning ring is located at the rear side of the second positioning ring, and the outer diameter of the second positioning ring is larger than the outer diameter of the first positioning ring.

[0010] The rear side walls of the two connecting rings are respectively provided with a clamping ring, and the lower ends of the two clamping rings are respectively provided with an opening.

[0011] The connecting ring is sleeved on the outside of the positioning pin, the second positioning ring is located between the connecting ring and the retaining ring, the retaining ring is sleeved on the outside of the first positioning ring, the width of the retaining ring opening is smaller than the outer diameter of the second positioning ring, and the thickness of the retaining ring is smaller than the thickness of the first positioning ring.

[0012] In one embodiment: a sliding hole is longitudinally arranged on one end of the slider connected to the sliding rod, the sliding rod is correspondingly inserted into the sliding hole, and a notch matching the size of the end of the first connecting block is arranged on one end of the slider connected to the sliding rod, and positioning holes are respectively arranged on the opposite ends of the two sliders.

[0013] A retractable latch is arranged inside the sliding block, and one end of the latch passes through the side wall of the notch and is inserted into the interior of the positioning hole.

[0014] In one embodiment: A locking sleeve is provided inside the slider. An activity slot is provided at the top of the locking sleeve. An "L"-shaped activity plate is provided below the bolt. The lower end of the activity plate penetrates downward through the activity slot. An unlocking sleeve is slidably arranged up and down inside the locking sleeve, and the lower end of the unlocking sleeve penetrates downward through the lower side walls of the locking sleeve and the slider. The upper end of the unlocking sleeve is sleeved outside the lower end of the activity plate. An unlocking plate is provided inside the unlocking sleeve. An activity hole matching the size of the lower end of the activity plate is provided on the unlocking plate, and the activity hole is located below the activity plate. Return sleeves are respectively arranged at the left and right ends inside the unlocking sleeve. Return springs are respectively arranged inside the two return sleeves. The upper ends of the two return springs respectively abut against the top wall of the locking sleeve. Sliding pins are respectively arranged on the front and rear side walls of the unlocking sleeve. Waist-shaped holes are respectively arranged on the front and rear side walls of the locking sleeve. The sliding pins on the front and rear side walls of the unlocking sleeve are correspondingly inserted into the waist-shaped holes on the front and rear side walls of the locking sleeve. A sliding button is provided at the upper end of the bolt. A sliding slot is provided at the top of the slider. The upper end of the sliding button penetrates upward through the sliding slot.

[0015] In one embodiment: The inner diameter of the waist-shaped hole in the up-and-down direction is equal to the distance from the activity hole to the lower end of the activity plate.

[0016] In one embodiment: A fixing block is inserted inside the lower end of the column. Two connecting rods are arranged side by side on the side wall of the lower end of the fixing block. One end of the fixing plate is fixed between the two connecting rods.

[0017] In one embodiment: At least two crib railings are connected end to end to form an "L" or "Π" or "square" shape. An "L"-shaped first connecting sleeve is provided between the upper ends of two adjacent columns. The two ends of the first connecting sleeve are correspondingly sleeved on the tops of the two columns. Connecting columns are respectively arranged on the outer sides of the second connecting blocks at the lower ends of two adjacent columns. A second connecting sleeve is sleeved outside the connecting columns on two adjacent columns. A connecting shaft is provided between the first connecting sleeve and the second connecting sleeve.

[0018] Compared with the prior art, the crib railing provided by the present utility model adopts an integral and foldable structure. When in use, the user only needs to unfold the railing and then insert and install the fixing plate, which greatly improves the convenience of use. Secondly, multiple railings can be quickly spliced through the first connecting sleeve, the second connecting sleeve and the connecting shaft in the present utility model. Therefore, it can better meet the needs of different users, greatly improve the applicability of the crib railing provided by the present utility model, and be loved by more consumers. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the first three-dimensional structure of the utility model;

[0020] Figure 2 It is a right side structural schematic diagram of the slider in the utility model;

[0021] Figure 3 It is a rear view structural schematic diagram of the connecting ring in the utility model;

[0022] Figure 4 This is a schematic diagram of the main structure of the slider in the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the first connecting block in the utility model;

[0024] Figure 6 This is a schematic diagram of the first internal partial structure of the slider in the utility model;

[0025] Figure 7 This is a schematic diagram of a second internal partial structure of the slider in the utility model;

[0026] Figure 8 It is a second three-dimensional structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] like Figure 1-8 As shown, for the convenience of description, the directions of "up", "down", "left", "right", "front" and "rear" in the present invention are based on the attached Figure 1 The directions shown shall prevail.

[0033] A baby crib guardrail comprises two upright posts 1, wherein the upper ends of the two upright posts 1 are respectively provided with first connecting blocks 2, and the lower ends are respectively provided with second connecting blocks 2, and sliding bars 4 are respectively provided between the first connecting blocks 2 and the second connecting blocks 3 on the two upright posts 1, and sliding blocks 5 are respectively provided on the two sliding bars 4 for sliding movement, and first folding rods 6 are respectively hinged on the two sliding blocks 5, and a first connecting sleeve 7 is provided between the two first folding rods 6, and the two ends of the first connecting sleeve 7 are respectively hinged to one end of the two first folding rods 6 through hinge shafts, and the two second connecting blocks 3 are respectively hinged to the second folding rods 8 through hinge shafts, and a second connecting sleeve 9 is provided between the two second folding rods 8, and the two ends of the second connecting sleeve 9 are respectively hinged to one end of the two second folding rods 8 through hinge shafts, and the lower ends of the two upright posts 1 are respectively provided with "L"-shaped fixing plates 10 which are detachable,

[0034] It can be seen from the above technical solution that when the entire guardrail needs to be folded, the two upright posts 1 are brought close to each other, and the slider 5 is moved downward from the upper end of the slide rod 4. At the same time, because the first connecting sleeve 7 is hinged to the two first folding rods 6, and the second connecting sleeve 9 is hinged to the two second folding rods 8, the slider 5 is also hinged to the first folding rod 6 and the second folding rod 8, respectively. Such a structure can conveniently realize the two upright posts 1 to be brought close to each other to achieve the purpose of folding the entire guardrail;

[0035] When the guardrail is needed, the two columns 1 are separated, and then the two first folding rods 6 and the second folding rod 8 are gradually extended, and at the same time, the slider 5 moves from the lower end of the slider 4 to the upper end. At this time, the entire guardrail is in an extended state, and then the fixing plates 10 are installed at the lower ends of the two columns 1, and then the two fixing plates 10 are placed under the mattress of the crib, and the gravity of the mattress is used to fix the fixing plates 10, and then the entire guardrail is fixed. Not only is the installation simple and convenient, but the entire guardrail is stable after installation and is not prone to shaking, and has a good anti-dumping effect.

[0036] In this embodiment: a connecting ring 11 is respectively provided on one end of the two first folding rods 6 connected to the slider 5, and a positioning pin 12 is respectively provided on one end of the two sliders 5 connected to the first folding rod 6, and the two connecting rings 11 are correspondingly sleeved on the outside of the two positioning pins 12;

[0037] Specifically: the positioning pin 12 is vertically arranged on the front side wall of the slider 5.

[0038] Preferably: a step recessed backwards is provided on the front side wall of one end of the two sliders 5 connected to the first folding rod 6, the positioning pin 12 is vertically arranged on the front side wall of the step, and the front side wall of the connecting ring 11 is flush with the front side wall of the slider 5, so that the integrity of the connecting ring 11 and the slider 5 is stronger, making the appearance of the entire guardrail more beautiful;

[0039] Further: the outsides of the two positioning pins 12 are respectively provided with a first positioning ring 13 and a second positioning ring 14, the first positioning ring 13 is located at the rear side of the second positioning ring 14, and the outer diameter of the second positioning ring 14 is greater than the outer diameter of the first positioning ring 13,

[0040] A clamping ring 15 is provided on the rear side walls of the two connecting rings 11, and the lower ends of the two clamping rings 15 are respectively provided with openings.

[0041] The connecting ring 11 is sleeved on the outside of the positioning pin 12, the second positioning ring 14 is located between the connecting ring 11 and the retaining ring 15, and the retaining ring 15 is sleeved on the outside of the first positioning ring 13. The width of the opening of the retaining ring 15 is smaller than the outer diameter of the second positioning ring 14, and the thickness of the retaining ring 15 is smaller than the thickness of the first positioning ring 13.

[0042] Through the above technical solution, it can be known that the articulation between the first folding rod 6 and the slider 5 can be conveniently realized through the connecting ring 11 and the clamping ring 15. At the same time, due to the existence of the locating pin 12, the first locating ring 13 and the second locating ring 14, it is ensured that the connecting ring 11 and the clamping ring 15 will not be easily separated from the locating pin 12 and the first locating ring 13 and the second locating ring 14. Therefore, the entire guardrail has good stability when in use, and also ensures the convenience of folding the guardrail and the convenience of disassembly and assembly between the slider 5 and the first folding rod 6.

[0043] In this embodiment: a sliding hole is longitudinally arranged on one end of the slider 5 connected to the slide rod 4, the slide rod 4 is correspondingly inserted into the sliding hole, and a notch 16 of a size matching the end of the first connecting block 2 is arranged on one end of the slider 5 connected to the slide rod 4, and positioning holes 17 are respectively arranged on the opposite ends of the two sliders 5.

[0044] A retractable latch 18 is disposed inside the slider 5, and one end of the latch 18 passes through the side wall of the notch 16 and is inserted into the positioning hole 17 to achieve connection between the slider 5 and the first connecting block 2;

[0045] Further: a locking sleeve 19 is provided inside the slider 5, a movable groove 20 is provided on the top of the locking sleeve 19, an "L"-shaped movable plate 21 is provided below the latch 18, the lower end of the movable plate 21 downwardly penetrates the movable groove 20, an unlocking sleeve 22 is provided inside the locking sleeve 19 to slide up and down, and the lower end of the unlocking sleeve 22 downwardly penetrates the locking sleeve 19 and the lower side wall of the slider 5, the upper end of the unlocking sleeve 22 is sleeved on the outside of the lower end of the movable plate 21, and an unlocking plate 23 is provided inside the unlocking sleeve 22, and the unlocking plate 23 is provided with a matching size with the lower end of the movable plate 21. The movable hole 24 is provided with a movable hole 24, and the movable hole 24 is located below the movable plate 21. Return sleeves 25 are provided at the left and right ends of the unlocking sleeve 22, and return springs are provided inside the two return sleeves 25. The upper ends of the two return springs are respectively in contact with the top wall of the locking sleeve 19, so that under the action of the return springs, the unlocking sleeve 22 always remains at the position of the lower point, thereby ensuring that the movable plate 21 and the movable hole 24 are in a misaligned position, thereby ensuring that the latch 18 can be inserted into the positioning hole 17 to maintain the connection between the slider 5 and the first connecting block 2.

[0046] The front and rear side walls of the unlocking sleeve 22 are respectively provided with sliding pins 26, and the front and rear side walls of the locking sleeve 19 are respectively provided with waist-shaped holes 27. The sliding pins 26 on the front and rear side walls of the unlocking sleeve 22 are correspondingly inserted into the waist-shaped holes 27 on the front and rear side walls of the locking sleeve 19. The upper end of the latch 18 is provided with a sliding button 28, and the top of the slider 5 is provided with a sliding groove. The upper end of the sliding button 28 passes through the sliding groove upward.

[0047] When it is necessary to unlock the connection between the latch 18 and the positioning hole 17, the user can press the lower end of the unlocking sleeve 22 upward to move it upward. When the unlocking sleeve 22 moves a certain distance and the movable hole 24 is flush with the movable plate 21, the sliding button 28 is pushed to drive the latch 18 to slide out of the positioning hole 17, thereby realizing the separation of the slider 5 and the first connecting block 2 to facilitate the folding operation of the entire guardrail. Accordingly, when the slider 5 is connected and locked with the first connecting block 2, the slider 5 cannot move downward, and the entire guardrail cannot be folded. Therefore, it can also ensure that the entire guardrail will not be misoperated during use and cause uncontrollable folding.

[0048] Preferably, the inner diameter of the waist-shaped hole 27 in the vertical direction is equal to the distance between the movable hole 24 and the lower end of the movable plate 21, so that the user only needs to push the unlocking sleeve 22 upward. When the unlocking sleeve 22 is pushed upward into place, it means that the movable hole 24 is facing the lower end of the movable plate 21 in the left and right directions. At this time, the movable button 28 can be pushed to unlock the connection between the latch 18 and the positioning hole 17, thereby making the entire unlocking operation easier.

[0049] In this embodiment: A fixing block 30 is inserted inside the lower end of the column 1. On the side wall of the lower end of the fixing block 30, two connecting rods 31 are arranged side by side. One end of the fixing plate 10 is detachably fixed between the two connecting rods 31 by bolts. The detachable and rotatable structures between the fixing plate 10 and the connecting rods 31, and between the fixing block 30 and the column 1 not only facilitate the assembly of the entire guardrail, but also make the overall volume of the guardrail smaller when it is folded and stored.

[0050] In this embodiment: At least two crib guardrails are connected end to end to form an "L" or "Π" or "square" shape to meet the needs of different consumers. Between the upper ends of two adjacent columns 1, an "L"-shaped first connecting sleeve 32 is provided. The two ends of the first connecting sleeve 32 are correspondingly sleeved on the tops of the two columns 2. On the outside of the second connecting blocks 3 at the lower ends of two adjacent columns 2, connecting columns 33 are respectively provided. An outer portion of the connecting columns 33 on two adjacent columns 1 is sleeved with a second connecting sleeve 34. A connecting shaft 35 is provided between the first connecting sleeve 32 and the second connecting sleeve 34. By providing the first connecting sleeve 32, the second connecting sleeve 34 and the connection 35, the connection between the guardrails can be realized, and at the same time, the strength after connection is higher and the connection is tighter.

[0051] Preferably, a guardrail cloth can also be sleeved outside the crib guardrail provided by the present utility model, so as to prevent wind and prevent small items on the crib from falling.

[0052] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0053] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A baby crib guardrail, characterized in that: The invention comprises two columns, wherein the upper ends of the two columns are respectively provided with a first connecting block, and the lower ends are respectively provided with a second connecting block, a sliding rod is respectively provided between the first connecting block and the second connecting block on the two columns, a sliding block is respectively provided on the two sliding bars for sliding movement, a first folding rod is respectively hinged on the two sliding blocks, a first connecting sleeve is provided between the two first folding rods, and the two ends of the first connecting sleeve are respectively hinged to one end of the two first folding rods, a second folding rod is respectively hinged on the two second connecting blocks, a second connecting sleeve is provided between the two second folding rods, and the two ends of the second connecting sleeve are respectively hinged to one end of the two second folding rods, and an "L"-shaped fixing plate is respectively detachably provided at the lower ends of the two columns.

2. The baby crib guardrail according to claim 1, characterized in that: A connecting ring is respectively provided on one end of the two first folding rods connected to the slider, and a positioning pin is respectively provided on one end of the two sliders connected to the first folding rod, and the two connecting rings are correspondingly sleeved on the outside of the two positioning pins.

3. The baby crib guardrail according to claim 2, characterized in that: The positioning pin is vertically arranged on the front side wall of the sliding block.

4. The baby crib guardrail according to claim 3, characterized in that: A step recessed backwards is arranged on the front side wall of one end of the two sliders connected to the first folding rod, the positioning pin is vertically arranged on the front side wall of the step, and the front side wall of the connecting ring is flush with the front side wall of the slider.

5. The baby crib guardrail according to claim 4, characterized in that: The two positioning pins are respectively provided with a first positioning ring and a second positioning ring, wherein the first positioning ring is located at the rear side of the second positioning ring, and the outer diameter of the second positioning ring is greater than the outer diameter of the first positioning ring. The rear side walls of the two connecting rings are respectively provided with a clamping ring, and the lower ends of the two clamping rings are respectively provided with an opening. The connecting ring is sleeved on the outside of the positioning pin, the second positioning ring is located between the connecting ring and the retaining ring, the retaining ring is sleeved on the outside of the first positioning ring, the width of the retaining ring opening is smaller than the outer diameter of the second positioning ring, and the thickness of the retaining ring is smaller than the thickness of the first positioning ring.

6. The baby crib guardrail according to claim 1, characterized in that: A sliding hole is longitudinally arranged on one end of the slider connected to the sliding rod, the sliding rod is correspondingly inserted into the sliding hole, and a notch matching the size of the end of the first connecting block is arranged on one end of the slider connected to the sliding rod, and positioning holes are respectively arranged on the opposite ends of the two sliders. A retractable latch is arranged inside the sliding block, and one end of the latch passes through the side wall of the notch and is inserted into the interior of the positioning hole.

7. The baby crib guardrail according to claim 6, characterized in that: A locking sleeve is arranged inside the slider. An activity groove is arranged at the top of the locking sleeve. An "L"-shaped activity plate is arranged below the bolt. The lower end of the activity plate penetrates downward through the activity groove. An unlocking sleeve is arranged to slide up and down inside the locking sleeve, and the lower end of the unlocking sleeve penetrates downward through the lower side walls of the locking sleeve and the slider. The upper end of the unlocking sleeve is sleeved outside the lower end of the activity plate. An unlocking plate is arranged inside the unlocking sleeve. An activity hole matching the size of the lower end of the activity plate is arranged on the unlocking plate, and the activity hole is located below the activity plate. Return sleeves are respectively arranged at the left and right ends inside the unlocking sleeve. Return springs are respectively arranged inside the two return sleeves. The upper ends of the two return springs respectively abut against the top wall of the locking sleeve. Sliding pins are respectively arranged on the front and rear side walls of the unlocking sleeve. Waist-shaped holes are respectively arranged on the front and rear side walls of the locking sleeve. The sliding pins on the front and rear side walls of the unlocking sleeve are correspondingly inserted into the waist-shaped holes on the front and rear side walls of the locking sleeve. A sliding button is arranged at the upper end of the bolt. A sliding groove is arranged at the top of the slider. The upper end of the sliding button penetrates upward through the sliding groove.

8. The baby crib guardrail according to claim 7, characterized in that: The inner diameter of the waist-shaped hole in the up and down direction is equal to the distance between the activity hole and the lower end of the activity plate.

9. The baby crib guardrail according to claim 1, characterized in that: A fixing block is inserted inside the lower end of the column. Two connecting rods are arranged side by side on the side wall of the lower end of the fixing block. One end of the fixing plate is fixed between the two connecting rods.

10. The baby crib guardrail according to claim 1, characterized in that: At least two baby crib guardrails are connected end to end to form an "L" or "Π" or "口" shape. An "L"-shaped first connecting sleeve is arranged between the upper ends of two adjacent columns. The two ends of the first connecting sleeve are correspondingly sleeved on the tops of the two columns. Connecting columns are respectively arranged on the outer sides of the second connecting blocks at the lower ends of two adjacent columns. A second connecting sleeve is sleeved outside the connecting columns on two adjacent columns. A connecting shaft is arranged between the first connecting sleeve and the second connecting sleeve.

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