Guardrail convenient to disassemble and assemble

Abstract

The guardrail convenient to disassemble and assemble comprises a transverse rod, stand columns are connected to the two ends of the transverse rod, supporting legs are connected to the lower ends of the stand columns, and locking structures capable of locking the transverse rod to the upper portions of the stand columns are arranged between the stand columns and the transverse rod. The locking structure comprises a lock hole formed in the upper portion of the stand column and a first connecting base connected to the end of the cross rod, and the first connecting base is provided with a first inserting hole allowing the stand column to be inserted therein and rotationally connected with a locking piece capable of stretching into the lock hole so as to lock the first connecting base to the stand column. The first connecting base is further rotationally connected with a knob structure capable of driving the locking piece to retreat from the lock hole, during assembly, the stand column is inserted into the first inserting hole, so that the locking piece can be inserted into the lock hole to complete locking of the cross rod, the number of used threaded fasteners is reduced, installation is easier and more convenient, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrail structures, in particular to a guardrail which is easy to assemble and disassemble. Background Art

[0002] Guardrails are facilities used to divide space, restrict access or protect safety, usually made of metal, plastic, wood and other materials. They are widely used in various places and scenes, including roads, construction sites, public places, stadiums, and bed accessories.

[0003] In the prior art, guardrails are generally formed by welding multiple rods or connecting them with threaded fasteners. Guardrails formed by welding cannot be disassembled after completion, occupy a large space, and are inconvenient for storage and transportation; guardrails connected with threaded fasteners are relatively cumbersome to assemble and disassemble, requiring a large number of bolts and nuts, and also requiring tools such as wrenches that can tighten the bolts and nuts.

[0004] The utility model is made based on the above situation. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a guardrail that is easy to assemble and disassemble.

[0006] The utility model is realized by the following technical solutions:

[0007] A guardrail that is easy to disassemble and assemble, includes a cross bar, both ends of the cross bar are connected to columns, the lower ends of the columns are connected to supporting feet, a locking structure that can lock the cross bar to the upper part of the column is provided between the column and the cross bar, the locking structure includes a locking hole provided on the upper part of the column and a first connecting seat connected to the end of the cross bar, the first connecting seat is provided with a first plug hole for the column to be inserted and a locking piece that is rotatably connected and can extend into the locking hole to lock the first connecting seat to the column, and the first connecting seat is also rotatably connected to a knob structure that can drive the locking piece to exit the locking hole.

[0008] As described above, a guardrail that is easy to disassemble and assemble, the locking piece is L-shaped, one end of the locking piece can be inserted into the lock hole, the knob structure includes a knob cap and a rotating shaft connected to the knob cap, and the side wall of the rotating shaft is provided with a protrusion that can push the other end of the locking piece when rotated, so that the locking piece rotates and then exits the lock hole.

[0009] In the guardrail that is easy to disassemble and assemble as described above, the end of the locking member away from the lock hole is connected to a return spring that can return the locking member to its original position.

[0010] As described above, a guardrail that is easy to disassemble and assemble, the first connecting seat is provided with a cavity for accommodating a locking piece and providing space for the locking piece to rotate, the inner wall of the cavity is provided with a first avoidance notch for the locking piece to be inserted into the lock hole, one end of the return spring abuts against the locking piece, and the other end abuts against the inner wall of the cavity.

[0011] In the guardrail that is easy to assemble and disassemble as described above, the column is a hollow column, and the upper end of the column is detachably connected to a limiting structure that can further limit the first connecting seat from escaping from the column.

[0012] A guardrail that is easy to disassemble and assemble as described above, the limiting structure includes a limiting hole arranged on the column and a limiting component inserted into the upper end of the column, the limiting component includes a retaining ring that limits the first connecting seat from withdrawing from the column, the lower end of the retaining ring is provided with an inwardly inclined spring sheet, the outer wall of the spring sheet is provided with an insert block, and the limiting component also includes a top block that can push the insert block into the limiting hole after the retaining ring is inserted.

[0013] In the guardrail that is easy to disassemble and assemble as described above, the lower end of the retaining ring is connected to a sleeve that can be inserted into a column, and the position of the sleeve corresponding to the spring piece is provided with a second avoidance notch that provides space for the spring piece to rotate.

[0014] In the guardrail that is easy to assemble and disassemble as described above, the first connecting seat is also rotatably connected to a rotating seat, and the rotating seat is provided with a pin that can be sleeved with the end of the cross bar.

[0015] As described above, a guardrail that is easy to disassemble and assemble is further provided with a cross arm between the two columns, and second connecting seats that can be connected to the columns are provided at both ends of the cross arm. An adjustment structure that can adjust the height of the column is also provided between the column and the supporting foot.

[0016] As described above, a guardrail that is easy to disassemble and assemble, the second connecting seat is provided with a second insertion hole for inserting a column, the supporting foot is provided with a connecting tube that can be inserted into the column, the inner side of the column is provided with a first through hole, the inner side of the connecting tube is provided with a row of second through holes that can cooperate with the first through hole along its height direction, and the adjustment structure includes a pin structure that is slidably connected to the second connecting seat and can be inserted into the first through hole and the second through hole at the same time for locking.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The first connecting seat is provided with a first insertion hole for inserting the column and a locking piece which is rotatably connected to extend into the locking hole so as to lock the first connecting seat on the column. The first connecting seat is also rotatably connected to a knob structure which can drive the locking piece to exit the locking hole. When assembling, the column is inserted into the first insertion hole so that the locking piece can be inserted into the locking hole to complete the locking of the cross bar, thereby reducing the number of threaded fasteners used, making installation easier and improving assembly efficiency.

[0019] 2. When disassembling the guardrail, turn the knob cap so that the protrusion pushes the locking piece to rotate, so that the locking piece leaves the keyhole, thereby unlocking and removing the crossbar. The disassembly is very convenient and quick. The disassembled guardrail can reduce the occupied space and is easy to carry.

[0020] 3. The upper end of the column is detachably connected with a limiting structure that can further limit the first connecting seat from escaping from the column. The limiting structure includes a retaining ring and a spring sheet. When the top block is inserted into the retaining ring, the top block opens the spring sheet outward, so that the insert block is inserted into the limiting hole for secondary locking, making the guardrail connection more stable.

[0021] 4. An adjustment structure for adjusting the height of the column is also provided between the column and the supporting foot. The height of the column can be adjusted through the adjustment structure as required according to the usage scenario, so as to better meet the needs of the user. At the same time, the second connecting seat can also lock the supporting foot on the column to prevent the supporting foot from detaching from the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 It is an exploded view of the utility model;

[0024] Figure 2 It is an exploded view of the first connecting seat in the utility model;

[0025] Figure 3 It is a cross-sectional view of the first connecting seat in the utility model;

[0026] Figure 4 It is a cross-sectional view of the second connecting seat in the utility model;

[0027] Figure 5 It is a schematic diagram of the structure of the limiting structure of the utility model without the top block inserted;

[0028] Figure 6 It is a schematic diagram of the structure of the limit structure of the utility model after the top block is inserted;

[0029] Figure 7 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] like Figures 1 to 7 A guardrail that is easy to disassemble and assemble is shown, including a cross bar 1, both ends of which are connected to columns 2, the lower ends of the columns 2 are connected to supporting feet 3, and a locking structure that can lock the cross bar 1 to the upper part of the column 2 is provided between the columns 2 and the cross bar 1. The locking structure includes a locking hole 21 provided on the upper part of the column 2 and a first connecting seat 4 connected to the end of the cross bar 1, the first connecting seat 4 is provided with a first plug hole 41 for the column 2 to be inserted, and a locking piece 5 that is rotatably connected and can extend into the locking hole 21 to lock the first connecting seat 4 on the column 2, and the first connecting seat 4 is also rotatably connected to a knob structure that can drive the locking piece 5 to exit the locking hole 21.

[0032] When assembling the guardrail of the present invention, the column 2 is inserted into the first insertion hole 41, so that the locking piece 5 can be inserted into the locking hole 21 to complete the locking of the cross bar 1, thereby reducing the number of threaded fasteners used, making installation easier and improving assembly work efficiency.

[0033] In one embodiment, the locking piece 5 is L-shaped, one end of the locking piece 5 can be inserted into the lock hole 21, the middle part of the locking piece 5 rotates on the first connecting seat 4, the knob structure includes a knob cap 61 and a rotating shaft 62 connected to the knob cap 61, and the side wall of the rotating shaft 62 is provided with a protrusion 63 that can push the other end of the locking piece 5 when rotating, so that the locking piece 5 rotates and then exits the lock hole 21.

[0034] When the cross bar 1 is disassembled, the knob cap 61 is turned so that the protrusion 63 pushes the locking piece 5 to rotate, so that the locking piece 5 leaves the lock hole 21, thereby completing the unlocking and removing the cross bar 1. The disassembly is very convenient and quick. The disassembled guardrail can reduce the occupied space and is easy to carry.

[0035] In one embodiment, a reset spring 51 capable of resetting the locking member 5 is connected to one end of the locking member 5 away from the lock hole 21. A cavity 42 for accommodating the locking member 5 and providing space for the locking member 5 to rotate is provided in the first connecting seat 4. A first avoidance notch 43 for inserting the locking member 5 into the lock hole 21 is provided on the inner wall of the cavity 42. One end of the reset spring 51 abuts against the locking member 5, and the other end abuts against the inner wall of the cavity 42. The first connecting seat 4 is provided with a mounting hole for inserting the rotating shaft 62 into the cavity 42, and the knob cap 61 is provided with a buckle 611 capable of limiting its separation from the first connecting seat. The knob cap 61, the rotating shaft 62 and the buckle 611 are integrally formed, or the rotating shaft 62 is connected to the knob cap 61 by other connection methods such as hot melt connection or threaded fasteners.

[0036] In one embodiment, the locking member 5 is provided with a mounting groove 52 for mounting a return spring 51, and the normal length of the return spring 51 is longer than the depth of the mounting groove 52. When the knob cap 61 is rotated to make the protrusion 63 away from the locking member 5, the return spring 51 pushes the locking member 5 to rotate, so that the locking member 5 is inserted into the lock hole 21 and automatically locked.

[0037] In one embodiment, the column 2 is a hollow column, and the upper end of the column 2 is detachably connected to a limiting structure that can further limit the first connection seat 4 from escaping from the column 2. Specifically, the limiting structure includes a limiting hole 22 provided on the column 2 and a limiting assembly plugged into the upper end of the column 2, and the limiting assembly includes a retaining ring 81 that limits the first connection seat 4 from exiting the column 2, and the lower end of the retaining ring 81 is provided with an inwardly inclined spring piece 82, and the outer wall of the spring piece 82 is provided with an insert block 83, and the limiting assembly also includes a top block 84 that can push the insert block 83 into the limiting hole 22 after the retaining ring 81 is inserted.

[0038] When the top block 84 is inserted into the retaining ring 81 , the top block 84 opens the spring piece 82 outward, so that the insert block 83 is inserted into the limiting hole 22 for secondary locking, so that the guardrail connection is more stable.

[0039] In one embodiment, a pair of spring sheets 82 are symmetrically arranged at the lower part of the retaining ring 81, and an insertion area for inserting the top block 84 is arranged between the pair of spring sheets 82. A pair of limiting holes 22 are symmetrically arranged on the column 2.

[0040] In one embodiment, the lower end of the retaining ring 81 is connected to a sleeve 85 that can be inserted into the column 2, and the sleeve 85 is provided with a second avoidance notch 86 corresponding to the position of the spring sheet 82 to provide space for the spring sheet 82 to rotate. The sleeve 85 and the spring sheet 82 together form an insertion area for the top block 84 to be inserted, and the sleeve 85 is inserted into the column 2 to make the connection more stable. Among them, the retaining ring 81, the spring sheet 82, and the sleeve 85 are integrally injection molded.

[0041] In one embodiment, the first connection seat 4 is further rotatably connected to a rotating seat 44, and the rotating seat 44 is provided with a pin 441 that can be sleeved with the end of the crossbar 1. The crossbar 1 includes a left crossbar 11 and a right crossbar 12, the head end of the left crossbar 11 is sleeved on the pin 441, the tail end of the left crossbar 11 is sleeved on the head end of the right crossbar 12, and the tail end of the right crossbar 12 is sleeved on the pin 441 of another rotating seat 44. The tail of the left crossbar 11 is provided with a threaded hole, and the right crossbar 12 can be locked by pressing the threaded screw against the right crossbar 12, thereby limiting the lateral displacement of the right crossbar 12 relative to the left crossbar 11. When the left crossbar 11 is not connected to the right crossbar 12, the rotating seat 44 can be rotated to make the left crossbar 11 and the right crossbar 12 parallel to the column 2, thereby reducing the occupied space.

[0042] In one embodiment, a cross arm 9 is further provided between the two upright posts 2, and second connection seats 91 that can be connected to the upright posts 2 are provided at both ends of the cross arm 9, and an adjustment structure that can adjust the height of the upright posts 2 is further provided between the upright posts 2 and the support legs 3. The cross arm 9 includes a left connection pipe 901 and a right connection pipe 902, wherein the head end of the left connection pipe 901 is plugged into the second connection seat 91, the tail end of the left connection pipe 901 is sleeved onto the head end of the right connection pipe 902, and the tail end of the right connection pipe 902 is connected to another second connection seat 91. The left connection pipe 901 can be fixed to the second connection seat 91 by a threaded fastener, and the right connection pipe 902 can be fixed to another second connection seat 91 by a threaded fastener.

[0043] The second connection seat 91 is provided with a second plug hole 911 for inserting the column 2, the support leg 3 is provided with a connection pipe 31 that can be inserted into the column 2, the inner side of the column 2 is provided with a first through hole 23, and the inner side of the connection pipe 31 is provided with a row of second through holes 311 that can cooperate with the first through hole 23 along its height direction, and the adjustment structure includes a latch structure 912 that is slidably connected to the second connection seat 91 and can be inserted into the first through hole 23 and the second through hole 311 for locking. The height of the column 2 can be adjusted according to the use scenario through the adjustment structure as needed, so as to better meet the needs of the user. At the same time, the second connection seat 91 can also lock the support leg 3 on the column 2 to limit the support leg 3 from being separated from the column 2. The latch structure 912 includes a latch that can be inserted into the first through hole 23 and the second through hole 311 and a push block connected to the latch that can drive the latch, the push block is used for pushing the latch by hand, and the second connection seat 91 is provided with a slide groove for the push block to slide.

Claims

1. A guardrail that is easy to assemble and disassemble, characterized in that: The invention comprises a cross bar (1), wherein both ends of the cross bar (1) are connected to upright posts (2), the lower ends of the upright posts (2) are connected to supporting feet (3), a locking structure capable of locking the cross bar (1) on the upper part of the upright posts (2) is provided between the upright posts (2) and the cross bar (1), the locking structure comprising a locking hole (21) provided on the upper part of the upright posts (2) and a first connecting seat (4) connected to the end of the cross bar (1), the first connecting seat (4) being provided with a first insertion hole (41) for inserting the upright posts (2) and a locking member (5) rotatably connected thereto which can extend into the locking hole (21) so as to lock the first connecting seat (4) on the upright posts (2), and the first connecting seat (4) being rotatably connected thereto which is capable of driving the locking member (5) to exit the locking hole (21).

2. The guardrail that is easy to assemble and disassemble according to claim 1, characterized in that: The locking member (5) is L-shaped, and one end of the locking member (5) can be inserted into the lock hole (21). The knob structure comprises a knob cap (61) and a rotating shaft (62) connected to the knob cap (61). A protrusion (63) is provided on the side wall of the rotating shaft (62) which can push the other end of the locking member (5) when rotating, so that the locking member (5) rotates and then exits the lock hole (21).

3. The guardrail that is easy to assemble and disassemble according to claim 2, characterized in that: One end of the locking member (5) away from the locking hole (21) is connected to a reset spring (51) capable of resetting the locking member (5).

4. The guardrail that is easy to assemble and disassemble according to claim 3 is characterized in that: A cavity (42) is provided in the first connecting seat (4) for accommodating the locking member (5) and providing space for the locking member (5) to rotate; a first avoidance notch (43) is provided on the inner wall of the cavity (42) for the locking member (5) to be inserted into the lock hole (21); one end of the return spring (51) abuts against the locking member (5) and the other end abuts against the inner wall of the cavity (42).

5. A guardrail that is easy to assemble and disassemble according to any one of claims 1 to 4, characterized in that: The column (2) is a hollow column, and the upper end of the column (2) is detachably connected to a limiting structure that can further limit the first connecting seat (4) from escaping from the column (2).

6. The guardrail that is easy to assemble and disassemble according to claim 5, characterized in that: The limiting structure comprises a limiting hole (22) provided on the column (2) and a limiting assembly plugged into the upper end of the column (2); the limiting assembly comprises a retaining ring (81) for limiting the first connecting seat (4) from withdrawing from the column (2); the lower end of the retaining ring (81) is provided with an inwardly inclined spring sheet (82); an insert block (83) is provided on the outer wall of the spring sheet (82); the limiting assembly also comprises a top block (84) capable of pushing the insert block (83) into the limiting hole (22) after the retaining ring (81) is inserted.

7. The guardrail that is easy to assemble and disassemble according to claim 6, characterized in that: The lower end of the retaining ring (81) is connected to a sleeve (85) that can be inserted into the column (2), and the sleeve (85) is provided with a second avoidance notch (86) at a position corresponding to the spring sheet (82) to provide space for the spring sheet (82) to rotate.

8. The guardrail that is easy to assemble and disassemble according to claim 5, characterized in that: The first connecting seat (4) is also rotatably connected to a rotating seat (44), and the rotating seat (44) is provided with a pin (441) that can be sleeved with the end of the crossbar (1).

9. The guardrail that is easy to assemble and disassemble according to claim 5, characterized in that: A cross arm (9) is also provided between the two upright posts (2), and second connecting seats (91) which can be connected to the upright posts (2) are provided at both ends of the cross arm (9). An adjusting structure which can adjust the height of the upright posts (2) is also provided between the upright posts (2) and the supporting legs (3).

10. The guardrail that is easy to assemble and disassemble according to claim 9, characterized in that: The second connecting seat (91) is provided with a second insertion hole (911) for inserting the column (2), the supporting foot (3) is provided with a connecting tube (31) capable of inserting the column (2), the inner side of the column (2) is provided with a first through hole (23), the inner side of the connecting tube (31) is provided with a row of second through holes (311) capable of cooperating with the first through hole (23) along its height direction, and the adjusting structure comprises a latch structure (912) which is slidably connected to the second connecting seat (91) and can be simultaneously inserted into the first through hole (23) and the second through hole (311) for locking.

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