CN216628045U - Bed guardrail - Google Patents

Abstract

The utility model discloses a bed guardrail, which comprises a vertical rod component and a cross rod component, wherein the cross rod component can be connected with the vertical rod component to form an enclosing frame, the vertical rod component comprises a first vertical rod and a second vertical rod, the first vertical rod is connected with a first connecting seat and a second connecting seat, the second vertical rod is connected with a third connecting seat and a fourth connecting seat, the cross rod component comprises a first cross rod and a second cross rod which are connected between the first vertical rod and the second vertical rod, the first cross rod comprises a first left rod body and a first right rod body which is rotatably connected with the third connecting seat, the first left rod body is rotatably connected with the first right rod body, the second cross rod comprises a second left rod body which is rotatably connected with the second connecting seat and a second right rod body which is rotatably connected with the fourth connecting seat, the first left rod body is rotatably connected with the first right rod body, and a locking device is arranged between the cross rod component and the vertical rod component. The utility model aims to overcome the defects of the prior art and provide a bed guardrail which is convenient for a user to unfold and use.

Description

Bed guardrail

[ technical field ] A

The utility model relates to a bed guardrail.

[ background of the utility model ]

Present bed guardrail is formed by a plurality of horizontal poles and montants concatenation each other mostly, and the whole volume of bed guardrail is great, and occupation space is also big, therefore the producer generally can become horizontal pole and montant with the bed guardrail split, then packs to reduce packaging material, convenient transportation, but the user will assemble after buying back, and the installation is comparatively loaded down with trivial details.

The present invention has been developed in view of the above-mentioned shortcomings.

[ Utility model ] content

The utility model aims to overcome the defects of the prior art and provide a bed guardrail which is convenient for a user to unfold and use.

The utility model is realized by the following technical scheme:

the utility model provides a bed guardrail, includes montant subassembly 11 and can be connected with montant subassembly 11 and enclose into the horizontal pole subassembly 12 of enclosing the frame, montant subassembly 11 include first montant 111 and the second montant 112 that the interval set up, first montant 111 on be connected with first connecting seat 1111 and the second connecting seat 1112 that the interval set up from top to bottom, second montant 112 on be connected with third connecting seat 1121 and fourth connecting seat 1122 that the interval set up from top to bottom, horizontal pole subassembly 12 include first horizontal pole 121 and the second horizontal pole 122 of interval connection between first montant 111 and second montant 112 from top to bottom, first horizontal pole 121 include rotate the first left body of rod 1211 of being connected with first connecting seat 1111 and rotate the first right body of rod 1212 of being connected with third connecting seat 1121, just first left body of rod 1211 and first right body of rod 1212 between rotate and be connected, second horizontal pole 122 include rotate the second left body of rod 1221 of being connected with second connecting seat 1122 and rotate the first left body of rod 1221 of being connected with fourth connecting seat 1122 and be connected with fourth connecting seat 1122 Two right rod 1222, and the first left rod 1211 and the first right rod 1212 are connected with each other in a rotating manner, and a locking device capable of locking the bed fence in the unfolded state is arranged between the cross bar component 12 and the vertical bar component 11.

The first connecting seat 1111 is slidably connected to the first vertical rod 111, and the third connecting seat 1121 is slidably connected to the second vertical rod 112.

The locking device includes a first locking member 13 capable of locking the second left rod 1221 and the second connecting base 1112, and a second locking member 14 capable of locking the second right rod 1222 and the fourth connecting base 1122.

First locking component 13 including locating first card lock position 131 on the second connecting seat 1112, the second left side body of rod 1221 in be equipped with can block into or break away from first card lock 132 of first card lock position 131 when its activity relatively, the second left side body of rod 1221 on still be connected with and can order about first card lock 132 when it slides relatively and break away from first operating parts 133 of first card lock position 131, first card lock 132 and the second left side body of rod 1221 between still be equipped with and to make first card lock 132 keep the first elastic component 134 of locking.

First screens 131 for the kayser hole, first kayser piece 132 for the kayser piece, first operating parts 133 establish the sliding sleeve in the second left side body of rod 1221 outside for the cover, first operating parts 133 and first kayser piece 132 between be equipped with and connect the first bolt 135 of the two, the second left side body of rod 1221 on still be equipped with the first groove 12211 of stepping down that can step down for first bolt 135, the second left side body of rod 1221 on still be equipped with the second bolt 12212 of being connected with first kayser piece 132, kayser piece on be equipped with the second groove 1321 of stepping down that can step down for second bolt 12212.

The second connecting base 1112 is provided with a first protruding engaging portion 11121, and the first operating element 133 is provided with a second engaging portion 1331 capable of abutting against the first engaging portion 11121 to prevent the second left rod 1221 from rotating relative to the second connecting base 1112 when the first locking element 13 is in the locking state.

The second locking assembly 14 includes a second locking position 141 disposed on the fourth connecting seat 1122, a second locking member 142 capable of being locked or separated from the second locking position 141 when moving relative to the second right rod 1222 is disposed in the second right rod 1222, a second operating member 143 capable of driving the second locking member 142 to be separated from the second locking position 141 when sliding relative to the second right rod 1222 is further connected to the second right rod 1222, and a second elastic member 144 capable of enabling the second locking member 142 to maintain a locking device is further disposed between the second locking member 142 and the second right rod 1222.

Second screens 141 be the block hole, second screens 142 be the block piece, second operating parts 143 establish the sliding sleeve in the second right side body of rod 1222 outside for the cover, second operating parts 143 and second screens 142 between be equipped with and connect the third bolt 145 of the two, second right side body of rod 1222 on still be equipped with the third groove 12221 of stepping down that can step down for third bolt 145, second right side body of rod 1222 on still be equipped with the fourth bolt 12222 of being connected with second screens 142, second screens 142 on be equipped with the fourth groove of stepping down 1421 that can step down for fourth bolt 12222.

The fourth connecting seat 1122 is provided with a third protruding latching portion 11221, and the second operating element 143 is provided with a fourth latching portion 1431 capable of abutting against the third latching portion 11221 when the second locking assembly 14 is in the latching state to prevent the second right rod 1222 from rotating relative to the fourth connecting seat 1122.

The first connecting seat 1111 is provided with a first protruding portion 11111, the first left rod 1211 is provided with a first receiving groove 12111 capable of receiving the first protruding portion 11111 and enabling the first left rod 1211 to rotate relative to the first connecting seat 1111, and a first locking device 21 capable of locking the first connecting seat 1111 and the first left rod 1211 is further arranged between the first connecting seat 1111 and the first left rod 1211;

the third connecting seat 1121 is provided with a second protruding portion 11211, the first right rod 1212 is provided with a second receiving groove 12121 capable of receiving the second protruding portion 11211 and enabling the first right rod 1212 to rotate relative to the third connecting seat 1121, and a second locking device 22 capable of locking the third connecting seat 1121 and the first right rod 1212 is further disposed between the third connecting seat 1121 and the first right rod 1212.

Compared with the prior art, the utility model has the following advantages: when the bed guardrail leaves a factory, the first vertical rod and the second vertical rod, the first left rod body and the first right rod body, and the second left rod body and the second right rod body are all in a state of being mutually closed and folded, when a user needs to use the bed guardrail, the first vertical rod is pulled, in the process of pulling the first vertical rod, the joint of the first left rod body, the first right rod body, the first connecting seat and the third connecting seat rotates mutually and is unfolded, meanwhile, the joint of the second left rod body, the second right rod body, the second connecting seat and the fourth connecting seat rotates mutually and is unfolded until the first left rod body is level with the first right rod body and the second left rod body is level with the second right rod body, the vertical rod assembly and the transverse rod assembly enclose a surrounding frame, the bed guardrail is in an unfolded state, when the bed guardrail is unfolded, the bed guardrail is locked in the unfolded state by the locking device between the vertical rod assembly and the transverse rod assembly, the unfolding operation of the bed guardrail is very simple, the bed guardrail is assembled when the bed guardrail is delivered, and the bed guardrail can be unfolded only by pulling the first vertical rod or the second vertical rod after a user buys the bed guardrail back, so that the bed guardrail is very convenient to operate.

[ description of the drawings ]

FIG. 1 is a perspective view of the bed fence of the present invention as it is deployed;

FIG. 2 is a plan view of the bed guard of the present invention as it is deployed;

FIG. 3 is a plan view of the bed guard of the present invention during folding;

FIG. 4 is a plan view of the bed barrier of the present invention as it is folded;

FIG. 5 is a perspective view of the completed folding of the bed guard rail of the present invention;

FIG. 6 is an exploded view of the first locking assembly and the second locking assembly of the bed fence of the present invention;

FIG. 7 is a perspective view of a fourth connecting section of the second connecting section in the bed guardrail of the present invention;

FIG. 8 is a cross-sectional view of a bed fence of the present invention;

FIG. 9 is a cross-sectional view of the bed fence of the present invention with the first locking assembly and the second locking assembly unlocked;

FIG. 10 is a perspective view of the bed guardrail of the present invention with the first and second locking assemblies unlocked;

FIG. 11 is an exploded view of the first vertical rod and first left rod and the second vertical rod and first right rod of the bed fence of the present invention;

fig. 12 is a perspective view of a first left rod and a first right rod in the bed fence of the present invention.

[ detailed description ] embodiments

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1 to 12, the present invention provides a bed fence, including a vertical rod assembly 11 and a horizontal rod assembly 12 connected to the vertical rod assembly 11 to form a frame, wherein the vertical rod assembly 11 includes a first vertical rod 111 and a second vertical rod 112 arranged at an interval, the first vertical rod 111 is connected to a first connecting seat 1111 and a second connecting seat 1112 arranged at an interval up and down, the second vertical rod 112 is connected to a third connecting seat 1121 and a fourth connecting seat 1122 arranged at an interval up and down, the horizontal rod assembly 12 includes a first horizontal rod 121 and a second horizontal rod 122 connected between the first vertical rod 111 and the second vertical rod 112 at an interval up and down, the first horizontal rod 121 includes a first left rod 1211 rotatably connected to the first connecting seat and a first right rod 1121 rotatably connected to the third connecting seat, and the first left rod 1211 is rotatably connected to the first right rod 1212, the second cross rod 122 comprises a second left rod body 1221 rotatably connected with the second connecting seat 1112 and a second right rod body 1222 rotatably connected with the fourth connecting seat 1122, the second left rod body 1221 is rotatably connected with the second right rod body 1222, and a locking device 13 capable of locking the bed fence in the unfolding state is arranged between the cross rod component 12 and the vertical rod component 11.

When the bed guardrail leaves a factory, the first vertical rod 111 and the second vertical rod 112, the first left rod 1211 and the first right rod 1212, the second left rod 1221 and the second right rod 1222 are all in a state of being mutually closed and folded, when a user needs to use the bed guardrail, the first vertical rod 111 is pulled, in the process of pulling the first vertical rod 111, the joints of the first left rod 1211, the first right rod 1212, the first connecting seat 1111 and the third connecting seat 1121 are mutually rotated and unfolded, meanwhile, the joints of the second left rod 1221, the second right rod 1222, the second connecting seat 1112 and the fourth connecting seat 1122 are mutually rotated and unfolded until the first left rod 1211 is flush with the first right rod 1212 and the second left rod 1221 is flush with the second right rod 1222, the vertical rod assembly 11 and the cross rod assembly 12 enclose a frame, the bed guardrail is in an unfolded state, when the bed guardrail is unfolded, the locking device between the vertical rod assembly 11 and the cross rod assembly 12 locks the bed guardrail in an unfolded state, the bed guardrail is very simple to unfold, the bed guardrail is assembled when the bed guardrail is delivered, and the bed guardrail can be unfolded only by pulling the first vertical rod 111 or the second vertical rod 112 after a user buys the bed guardrail, so that the bed guardrail is very convenient to unfold.

As shown in fig. 3, the first connecting seat 1111 is slidably connected to the first vertical rod 111, and the third connecting seat 1121 is slidably connected to the second vertical rod 112. When the bed guardrail needs to be folded, the locking device is unlocked, then the connecting parts of the first left rod 1211 and the first right rod 1212, and the second left rod 1221 and the second right rod 1222 are pushed upwards, at this time, the first vertical rod 111 and the second vertical rod 112 are close to each other, then the first connecting seat 1111 and the third connecting seat 1121 are slid, at this time, the first left rod 1211 and the first right rod 1212 respectively follow the first connecting seat 1111 and the third connecting seat 1121 to slide downwards relative to the first vertical rod 111 and the second vertical rod 112, until the first connecting seat 1111 and the second connecting seat 1112 abut against each other and the third connecting seat 1121 and the fourth connecting seat 1122 abut against each other, the height of the bed guardrail in the vertical direction reaches the minimum, at this time, the bed guardrail is folded to the minimum state, the occupied space is reduced, and the packaging and transportation of a manufacturer are facilitated.

As shown in fig. 6 to 9, the locking device includes a first locking member 13 capable of locking the second left rod 1221 and the second connecting base 1112, and a second locking member 14 capable of locking the second right rod 1222 and the fourth connecting base 1122. The first locking assembly 13 and the second locking assembly 14 respectively lock the second left rod 1221 and the second connecting seat 1112, and the second right rod 1222 and the fourth connecting seat 1122, so that the locking effect is better.

As shown in fig. 6 to 9, the first locking component 13 includes a first locking position 131 disposed on the second connecting seat 1112, a first locking member 132 is disposed in the second left rod 1221 and can be locked or separated from the first locking position 131 when moving relative to the second left rod 1221, the second left rod 1221 is further connected with a first operating member 133 capable of driving the first locking member 132 to be separated from the first locking position 131 when sliding relative to the second left rod 1221, and a first elastic member 134 capable of keeping the first locking member 132 locked is further disposed between the first locking member 132 and the second left rod 1221.

When the second left rod 1221 needs to rotate relative to the second connecting seat 1112, the first operation element 133 is operated, and when the first operation element 133 is operated, the first locking element 132 is pulled to move relative to the second left rod 1221 and compress the first elastic element 134, so that the first locking element 132 is separated from the first locking position 131 on the second connecting seat 1112, at this time, the first locking element 13 is unlocked, and the second left rod 1221 can rotate relative to the second connecting seat 1112. When the bed guardrail is unfolded, the first locking element 132 and the side wall of the first vertical rod 111 abut against each other to compress the first elastic element 134, when the first locking element 132 is aligned with the first locking position 131, the first elastic element 134 resets to push the first locking element 132 to be clamped into the first locking position 131, the first elastic element 134 enables the first locking element 132 to keep a locking state, and at this time, the second left rod 1221 and the second connecting seat 1112 are locked.

As shown in fig. 6 to 9, the first locking part 131 is a locking hole, the first locking part 132 is a locking block, the first operating part 133 is a sliding sleeve sleeved on the outer side of the second left rod 1221, a first plug 135 capable of connecting the first operating part 133 and the first locking part 132 is arranged between the first operating part 133 and the first locking part 132, the second left rod 1221 is further provided with a first abdicating groove 122111 capable of abdicating for the first plug 135, the second left rod 1221 is further provided with a second plug 12212 connected with the first locking part 132, and the locking block is provided with a second abdicating groove 1321 capable of abdicating for the second plug 12212. In the process that the first operating element 133 is pulled, since the first operating element 133 is connected with the first locking element 132 through the first pin 135, the first locking element 132 can slide along with the first operating element 133 at the same time, and the second pin 12212 is used for connecting and fixing the first locking element 132 and the second left rod 1221, so that the first abdicating groove 122111 and the second abdicating groove 1321 are abdicating grooves capable of abdicating the first pin 135 and the second pin 12212, and are limiting grooves for limiting the first operating element 133 and the first locking element 132.

As shown in fig. 10, the second connecting seat 1112 is provided with a first protruding locking portion 11121, and the first operating element 133 is provided with a second locking portion 1331 which can abut against the first locking portion 11121 when the first locking element 13 is in the locked state to prevent the second left rod 1221 from rotating relative to the second connecting seat 1112. The first clamping portion 11121 and the second clamping portion 1331 can cooperate with the first locking component 13 to form a second lock, so that the second left rod 1221 is more stable when locked with the second connecting seat 1112. And only when the second engaging portion 1331 of the first operating element 133 and the first engaging portion 11121 of the second connecting seat 1112 are completely separated, the second left rod 1221 can rotate relative to the second connecting seat 1112.

As shown in fig. 6 to 9, the second locking assembly 14 includes a second locking position 141 disposed on the fourth connecting seat 1122, a second locking member 142 capable of being locked in or separated from the second locking position 141 when moving relative to the second right rod 1222 is disposed in the second right rod 1222, the second right rod 1222 is further connected to a second operating member 143 capable of driving the second locking member 142 to be separated from the second locking position 141 when sliding relative to the second right rod 1222, and a second elastic member 144 capable of keeping the second locking member 142 locked is disposed between the second locking member 142 and the second right rod 1222. When the second right rod 1222 needs to rotate relative to the fourth connecting seat 1122, the second operating element 143 is operated to pull the second locking element 142 to move relative to the second right rod 1222 and compress the second elastic element 144, the second locking element 142 is separated from the second locking element 142 on the fourth connecting seat 1122, the second locking element 14 is unlocked, and the second right rod 1222 can rotate relative to the fourth connecting seat 1122. When the bed fence is unfolded, the second locking member 142 abuts against the side wall of the second vertical rod 112 to compress the second elastic member 144, when the second locking member 142 is aligned with the second locking position 141, the second elastic member 144 is reset to push the second locking member 142 to be locked in the second locking position 141, the second elastic member 144 enables the second locking member 142 to maintain a locking state, and at this time, the second right rod 1222 and the fourth connecting seat 1122 are locked.

As shown in fig. 6 to 9, the second latch 141 is a latch hole, the second latch 142 is a latch block, the second operating part 143 is a sliding sleeve sleeved on the outside of the second right rod 1222, a third pin 145 capable of connecting the second operating part 143 and the second latch 142 is arranged between the second operating part 143 and the second latch 142, the second right rod 1222 is further provided with a third yielding groove 12221 capable of yielding for the third pin 145, the second right rod 1222 is further provided with a fourth pin 12222 connected with the second latch 142, and the second latch 142 is provided with a fourth yielding groove 1421 capable of yielding for the fourth pin 12222. In the process that the second operating element 143 is pulled, since the second operating element 143 is connected to the second locking element 142 through the third pin 145, the second locking element 142 slides along with the second operating element 143, and the fourth pin 12222 is used to connect and fix the second locking element 142 and the second right rod 1222, the third and fourth abdicating grooves 12221 and 1421 are abdicating grooves capable of abdicating the third and fourth pins 145 and 12222, and are limiting grooves for limiting the third and fourth pins 145 and 12222.

As shown in fig. 10, a third engaging portion 11221 is protruded from the fourth connecting base 1122, and a fourth engaging portion 1431 is disposed on the second operating member 143 and can abut against the third engaging portion 11221 when the second locking assembly 14 is in the locked state to prevent the second right rod 1222 from rotating relative to the fourth connecting base 1122. Third clamping portion 11221 and fourth clamping portion 1431 can cooperate with second locking assembly 14 to form a second lock, so that second right rod 1222 and fourth connecting seat 1122 are more stable when locked. And only when the fourth catching portion 1431 of the second operating element 143 and the third catching portion 11221 of the fourth connecting seat 1122 are completely separated, the second right rod 1222 can rotate relative to the fourth connecting seat 1122.

As shown in fig. 11 to 12, the first left rod 1211 is detachably connected to the first connection seat 1111, the first connection seat 1111 is provided with a protruding first protrusion 11111, and the first left rod 1211 is provided with a first receiving groove 12111 capable of receiving the first protrusion 11111 and enabling the first left rod 1211 to rotate relative to the first connection seat 1111. The first connection seat 1111 can be detached from the first left rod 1211, and the first connection seat 1111 and the first left rod 1211 are connected by the first protrusion 11111 and the first receiving groove 12111 in a form of matching and fastening, so that the installation is more convenient and the detachment is convenient.

As shown in fig. 11 to 12, the first right rod 1212 is detachably connected to the third connecting seat 1121, a second protrusion 11211 is disposed on the third connecting seat 1121, and a second receiving groove 12121 is disposed on the first right rod 1212, and can receive the second protrusion 11211 and enable the first right rod 1212 to rotate relative to the third connecting seat 1121. The first right rod body 1212 can be detached from the third connecting seat 1121, and the third connecting seat 1121 and the first right rod body 1212 are connected by the form of the matching and fastening of the second protrusion 11211 and the second receiving groove 12121, so that the mounting is more convenient and the detachment is convenient.

Claims (10)

1. A bed guardrail which is characterized in that: comprises a vertical rod component (11) and a cross rod component (12) which can be connected with the vertical rod component (11) to form a surrounding frame, wherein the vertical rod component (11) comprises a first vertical rod (111) and a second vertical rod (112) which are arranged at intervals, the first vertical rod (111) is connected with a first connecting seat (1111) and a second connecting seat (1112) which are arranged at intervals up and down, the second vertical rod (112) is connected with a third connecting seat (1121) and a fourth connecting seat (1122) which are arranged at intervals up and down, the cross rod component (12) comprises a first cross rod (121) and a second cross rod (122) which are connected between the first vertical rod (111) and the second vertical rod (112) at intervals up and down, the first cross rod (121) comprises a first left rod body (1211) which is rotationally connected with the first connecting seat (1111) and a first right rod body (1212) which is rotationally connected with the third connecting seat (1121), just first left body of rod (1211) and first right body of rod (1212) between rotate and be connected, second horizontal pole (122) including rotate the second left body of rod (1221) of being connected with second connecting seat (1112) and rotate the second right body of rod (1222) of being connected with fourth connecting seat (1122), just first left body of rod (1211) and first right body of rod (1212) between rotate and be connected, horizontal pole subassembly (12) and montant subassembly (11) between be equipped with and to lock the locking device in the state of expanding with the bed guardrail.

2. The bed guardrail of claim 1, wherein: the first connecting seat (1111) is slidably connected to the first vertical rod (111), and the third connecting seat (1121) is slidably connected to the second vertical rod (112).

3. The bed guardrail of claim 1 or 2, wherein: the locking device comprises a first locking component (13) capable of locking the second left rod body (1221) and the second connecting seat (1112) and a second locking component (14) capable of locking the second right rod body (1222) and the fourth connecting seat (1122).

4. The bed guardrail of claim 3, wherein: first locking subassembly (13) including locating first calorie of locking position (131) on second connecting seat (1112), second left side body of rod (1221) in be equipped with first calorie of locking piece (132) that can block into or break away from first calorie of locking position (131) when its activity relatively, second left side body of rod (1221) on still be connected with first calorie of locking piece (132) and break away from first operating parts (133) of first calorie of locking position (131) when it slides relatively, first calorie of locking piece (132) and second left side body of rod (1221 between still be equipped with and make first calorie of locking piece (132) keep first elastic component (134) of locking.

5. The bed guardrail of claim 4, wherein: first block position (131) be the kayser hole, first kayser piece (132) be the kayser piece, first operating parts (133) establish the sliding sleeve in the second left side body of rod (1221) outside for the cover, first operating parts (133) and first kayser piece (132) between be equipped with and connect first bolt (135) of the two, the second left side body of rod (1221) on still be equipped with and can give way first groove of stepping down (12211) for first bolt (135), the second left side body of rod (1221) on still be equipped with and first kayser piece (132) second bolt (12212) of being connected, the kayser piece on be equipped with and can give way groove (1321) for the second that second bolt (12212) gave way.

6. The bed guardrail of claim 5, wherein: the second connecting seat (1112) is provided with a first convex clamping portion (11121), and the first operating part (133) is provided with a second clamping portion (1331) which can be abutted against the first clamping portion (11121) to prevent the second left rod body (1221) from rotating relative to the second connecting seat (1112) when the first locking component (13) is in a clamping state.

7. The bed guardrail of claim 3, wherein: the second locking assembly (14) comprises a second locking position (141) arranged on the fourth connecting seat (1122), a second locking piece (142) capable of being clamped into or separated from the second locking position (141) when moving relative to the second right rod body (1222), a second operation piece (143) capable of driving the second locking piece (142) to be separated from the second locking position (141) when sliding relative to the second right rod body is further connected to the second right rod body (1222), and a second elastic piece (144) capable of enabling the second locking piece (142) to keep locked is further arranged between the second locking piece (142) and the second right rod body (1222).

8. The bed guardrail of claim 7, wherein: second card position of locking (141) be the block hole, second card locking piece (142) be the block piece, second operating parts (143) establish the sliding sleeve in the second right side body of rod (1222) outside for the cover, second operating parts (143) and second card locking piece (142) between be equipped with third bolt (145) that can connect the two, second right body of rod (1222) on still be equipped with and let a groove (12221) for the third that third bolt (145) let a position, second right body of rod (1222) on still be equipped with fourth bolt (12222) of being connected with second card locking piece (142), second card locking piece (142) on be equipped with and let a groove (1421) for the fourth that fourth bolt (12222) let a position.

9. The bed guardrail of claim 8, wherein: the fourth connecting seat (1122) is provided with a third clamping part (11221) which protrudes, and the second operating piece (143) is provided with a fourth clamping part (1431) which can be abutted against the third clamping part (11221) when the second locking component (14) is in a clamping state so as to prevent the second right rod body (1222) from rotating relative to the fourth connecting seat (1122).

10. The bed guardrail of claim 1 or 2, wherein: a first convex part (11111) is arranged on the first connecting seat (1111), a first accommodating groove (12111) which can accommodate the first convex part (11111) and enable the first left rod body (1211) to rotate relative to the first connecting seat (1111) is arranged on the first left rod body (1211), and a first locking device (21) which can lock the first connecting seat (1111) and the first left rod body (1211) is arranged between the first connecting seat (1111) and the first left rod body (1211);

the third connecting seat (1121) is provided with a second protruding part (11211), the first right rod body (1212) is provided with a second accommodating groove (12121) which can accommodate the second protruding part (11211) and enable the first right rod body (1212) to rotate relative to the third connecting seat (1121), and a second locking device (22) which can lock the third connecting seat (1121) and the first right rod body (1212) is further arranged between the third connecting seat (1121) and the first right rod body (1212).

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