Protective fence

Abstract

The protective fence comprises a protective net and two sets of stand columns arranged on the two opposite sides of the protective net respectively, each stand column comprises a supporting rod, a base arranged at the bottom end of the supporting rod, a plurality of annular rotating grooves formed in the side wall of the supporting rod and a plurality of positioning grooves formed in the side wall of the supporting rod, and the annular rotating grooves are formed in the direction of the central axis of the supporting rod at intervals. A gear is installed in each annular rotating groove, and the central axis of each gear coincides with the central axis of the corresponding supporting rod. At least two groups of positioning grooves are arranged, and the two groups of positioning grooves are used for splicing two adjacent protective nets; by arranging the annular rotating grooves, the positioning grooves, the magnetic attraction blocks, the gears and the racks, the racks on the two adjacent protective nets can be inserted into the annular rotating grooves in different directions to be meshed with the gears, the magnetic attraction blocks are attracted to the inner side walls of the positioning grooves to lock and fix the racks and the gears, and rapid splicing and assembling of the protective nets and the stand columns are achieved; and bare-handed operation is facilitated.

Description

Technical Field

[0001] The utility model relates to a protective fence and belongs to the technical field of construction protection. Background Art

[0002] The protective fence is set up outside the construction area when construction work is being carried out, which serves as a warning to passers-by and surrounding people, and is used to prevent non-operating personnel from mistakenly entering the work area. Among them, live work often occurs during power work construction, so it is necessary to set up a protective fence around the work area to prevent non-operating personnel from mistakenly entering the work area and causing accidental injuries. For example, the existing Chinese utility model patent with publication number CN219158640U discloses a mesh type protective fence, which is formed by sliding the connecting blocks on both sides of the mesh type guardrail body into the corresponding connecting grooves respectively, and then inserting two pins to first fix the connecting blocks and the columns, and then sliding the stop block down along the upper limit groove of the first limit block, and then limiting and fixing the pins, thereby increasing the stability of the mesh type guardrail body when it is fixed, and facilitating the installation and disassembly of the mesh type guardrail body.

[0003] However, when two adjacent protective fences are spliced ​​together, in order to avoid the formation of gaps between the two protective fences due to external factors such as wind, which would lead to loss of protective effect, other auxiliary tools are needed for splicing, such as tying them up with wire ropes, which is not convenient for manual work. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a protective fence to solve the technical problems mentioned in the prior art.

[0005] A protective fence, comprising a protective net and two groups of columns respectively arranged on opposite sides of the protective net, wherein the columns comprise a support rod and a base arranged at the bottom end of the support rod and a plurality of annular rotation grooves and positioning grooves on the side wall, wherein the plurality of annular rotation grooves are arranged at intervals along the central axis direction of the support rod, and a gear is respectively installed in each of the annular rotation grooves;

[0006] At least two groups of positioning grooves are provided, and the positioning grooves are located on both sides of the support rod. The two groups of positioning grooves are used to splice two adjacent protective nets;

[0007] The protective net is provided with a plurality of racks and magnetic blocks on opposite sides thereof, wherein:

[0008] A plurality of the racks are respectively inserted into the corresponding annular rotating grooves and meshed with the gears;

[0009] The magnetic block is plugged into and adsorbed on the inner side wall of the positioning groove to position and install the rack.

[0010] Optionally, the support rod includes a first rod body and a second rod body installed at two ends of the first rod body;

[0011] Both ends of the first rod body are respectively provided with threaded blind holes, and one end of the second rod body close to the first rod body is installed with a screw rod, and the screw rod is installed in the threaded blind hole, so that the annular rotation groove is formed between the first rod body and the second rod body;

[0012] The gear is sleeved on the screw rod.

[0013] Optionally, the positioning grooves are located on an outer side wall of the first rod body, and four groups of the positioning grooves are evenly arranged on the outer side wall of the first rod body along a circumferential direction.

[0014] Optionally, the cross section of the positioning groove is set to a trapezoidal structure, and the opening end of the positioning groove is located on the outward side larger than the inward side.

[0015] Optionally, an arc plate is provided on one side of the rack, and the opening of the arc plate is arranged toward the column. After the inner wall of the arc plate contacts the side wall of the second rod body, the rack is inserted into the annular rotating groove and meshes with the gear, and the end of the rack away from the protective net is located between the center of the gear and the inner tooth profile of the gear.

[0016] Optionally, the magnetic block is configured as an L-shaped structure, and the magnetic block and the arc-shaped plate are respectively disposed on opposite sides of the rack.

[0017] Optionally, a plurality of mounting holes are provided at one end of the base.

[0018] The beneficial effects that the utility model can produce include:

[0019] The utility model provides a protective fence, which, by providing an annular rotating groove, a positioning groove, a magnetic block, a gear and a rack, can insert the racks on two adjacent protective nets into the annular rotating groove in different directions to mesh with the gears, and lock and fix the racks and the gears by adsorbing the magnetic block on the inner wall of the positioning groove, thereby realizing rapid splicing and assembly of the protective net and the column, which is convenient for manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a protective fence of the utility model;

[0021] Figure 2 For the utility model Figure 1 Exploded view of the support rod;

[0022] Figure 3 For the utility model Figure 1 A magnified image of point A;

[0023] Figure 4 For the utility model Figure 2 A transverse cross-sectional view of the positioning groove;

[0024] Figure 5 For the utility model Figure 1 A schematic diagram of the structure of the rack, magnetic block and arc plate;

[0025] In the figure: 1. protective net, 2. support rod, 3. base, 4. annular rotating groove, 5. positioning groove, 6. gear, 7. rack, 8. magnetic block, 9. first rod body, 10. second rod body, 11. threaded blind hole, 12. screw, 13. mounting hole, 14. arc plate. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0027] like Figure 1-Figure 5 As shown, the utility model provides a protective fence, including a protective net 1 and two groups of columns respectively arranged on opposite sides of the protective net 1, the columns include a support rod 2 and a base 3 arranged at the bottom end of the support rod 2, a plurality of annular rotation grooves 4 and positioning grooves 5 on the side wall, the plurality of annular rotation grooves 4 are arranged at intervals along the central axis direction of the support rod 2, and a gear 6 is respectively installed in each annular rotation groove 4;

[0028] At least two groups of positioning grooves 5 are provided, and the positioning grooves 5 are located on both sides of the support rod 2. The two groups of positioning grooves 5 are used to splice two adjacent protection nets 1;

[0029] A plurality of racks 7 and magnetic blocks 8 are provided on opposite sides of the protective net 1, wherein:

[0030] A plurality of racks 7 are respectively inserted into the corresponding annular rotating grooves 4 and meshed with the gears 6;

[0031] The magnetic block 8 is inserted into and adsorbed on the inner wall of the positioning groove 5 to position and install the rack 7.

[0032] In the above, when the protective nets 1 are spliced ​​and assembled, the magnetic blocks 8 located on the adjacent sides of the two protective nets 1 are first aligned and inserted into the two groups of positioning grooves 5 of the same column, so that the rack 7 slides into the annular rotating groove 4 and meshes with the gear 6. At the same time, the racks 7 on the two protective nets 1 are respectively located on the opposite sides of the gear 6, so that when the rack 7 on one of the protective nets 1 continues to extend into the annular rotating groove 4, it drives the gear 6 to rotate, and then drives the rack 7 on the other protective net 1 to slide to the inner side of the annular rotating groove 4 through the gear 6, thereby The racks 7 on the two adjacent protective nets 1 are inserted into the annular rotating groove 4 in different directions and mesh with the gear 6, and the racks 7 and the gear 6 are locked and fixed on the inner wall of the positioning groove 5 by the magnetic block 8, so as to realize the rapid splicing and assembly of the protective net 1 and the column, which is convenient for manual operation. At the same time, the two adjacent protective nets 1 share a column, which can reduce the cost of use. When the protective fence needs to be disassembled, it is only necessary to pull one of the protective nets 1 out of the column, and then the adjacent protective nets 1 can be disassembled synchronously under the reverse rotation of the gear 6, which is convenient for use.

[0033] Furthermore, the support rod 2 includes a first rod body 9 and a second rod body 10 installed at both ends of the first rod body 9; threaded blind holes 11 are respectively opened at both ends of the first rod body 9, and a screw 12 is installed at one end of the second rod body 10 close to the first rod body 9, and the screw 12 is threadedly installed in the threaded blind hole 11, so that an annular rotating groove 4 is formed between the first rod body 9 and the second rod body 10; the gear 6 is sleeved on the screw 12, which is convenient for installing and replacing the gear 6.

[0034] Furthermore, the positioning groove 5 is located on the outer wall of the first rod body 9, and four groups of positioning grooves 5 are evenly opened along the circumferential direction on the outer wall of the first rod body 9, which is convenient for splicing and assembling the protective net 1 along four different directions on the same column. The protective net 1 can be spliced ​​and assembled along different directions according to the construction environment, thereby enhancing applicability.

[0035] Furthermore, the cross-section of the positioning groove 5 is set to a trapezoidal structure, and the opening end of the positioning groove 5 is located on the outward side larger than the inward side, so that the magnetic block 8 can adjust the horizontal installation angle in the positioning groove 5, which is used to adjust the installation angle between two adjacent protective nets 1.

[0036] Furthermore, an arc plate 14 is installed on one side of the rack 7, and the opening of the arc plate 14 is arranged toward the column, so that after the inner wall of the arc plate 14 contacts the side wall of the second rod body 10, the rack 7 is inserted into the annular rotating groove 4 and meshes with the gear 6, so as to limit the rack 7 horizontally to prevent the rack 7 from shaking and disengaging from the gear 6 after the protective net 1 is hit, and the end of the rack 7 away from the protective net 1 is located between the center of the gear 6 and the inner tooth profile of the gear 6, so as to prevent the length of the rack 7 from being too long and affecting the meshing of the rack 7 and the gear 6 on other protective nets 1.

[0037] Further, refer to Figure 3 and Figure 5 As shown, the magnetic block 8 is set to an L-shaped structure, and the magnetic block 8 and the arc plate 14 are respectively installed on opposite sides of the rack 7, which can enhance the locking force between the rack 7 and the gear 6 and ensure the installation reliability between the protective net 1 and the column.

[0038] Furthermore, a plurality of mounting holes 13 are provided at one end of the base 3, which are used to fix the base 3 on the mounting surface by passing anchor bolts through the mounting holes 13 when the protective net 1 is spliced ​​and assembled in the same horizontal direction, so as to reinforce the protective fence.

[0039] The above are only several embodiments of the utility model, and do not limit the utility model in any form. Although the utility model is disclosed as above in the preferred embodiments, it is not used to limit the utility model. Any technician familiar with this profession, without departing from the scope of the technical solution of the utility model, makes slight changes or modifications using the technical contents disclosed above, which are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A protective fence, comprising a protective net (1) and two groups of upright posts respectively arranged on opposite sides of the protective net (1), characterized in that: The column comprises a support rod (2), a base (3) arranged at the bottom end of the support rod (2), a plurality of annular rotation grooves (4) and positioning grooves (5) on the side wall, the plurality of annular rotation grooves (4) being arranged at intervals along the central axis direction of the support rod (2), and a gear (6) being installed in each of the annular rotation grooves (4); At least two groups of the positioning grooves (5) are provided, and the positioning grooves (5) are located on both sides of the support rod (2). The two groups of the positioning grooves (5) are used to splice two adjacent protective nets (1); A plurality of racks (7) and magnetic blocks (8) are provided on opposite sides of the protection net (1), wherein: A plurality of racks (7) are respectively inserted into the corresponding annular rotating grooves (4) and meshed with the gears (6); The magnetic attraction block (8) is inserted into and adsorbed on the inner wall of the positioning groove (5) to position and install the rack (7).

2. A protective fence according to claim 1, characterized in that: The support rod (2) comprises a first rod body (9) and a second rod body (10) installed at two ends of the first rod body (9); The first rod body (9) is provided with threaded blind holes (11) at both ends thereof, a screw rod (12) is installed at one end of the second rod body (10) close to the first rod body (9), the screw rod (12) is installed in the threaded blind hole (11), and the annular rotation groove (4) is formed between the first rod body (9) and the second rod body (10); The gear (6) is sleeved on the screw rod (12).

3. A protective fence according to claim 2, characterized in that: The positioning grooves (5) are located on the outer side wall of the first rod body (9), and four groups of positioning grooves (5) are evenly arranged on the outer side wall of the first rod body (9) along the circumferential direction.

4. A protective fence according to claim 3, characterized in that: The cross section of the positioning groove (5) is arranged to be a trapezoidal structure, and the opening end of the positioning groove (5) is located on the outward side and is larger than the inward side.

5. A protective fence according to claim 2, characterized in that: An arc plate (14) is provided on one side of the rack (7), and the opening of the arc plate (14) is arranged toward the column. After the inner wall of the arc plate (14) contacts the side wall of the second rod body (10), the rack (7) is inserted into the annular rotating groove (4) and meshes with the gear (6), and the end of the rack (7) away from the protective net (1) is located between the center of the gear (6) and the inner tooth profile of the gear (6).

6. A protective fence according to claim 5, characterized in that: The magnetic attraction block (8) is arranged as an L-shaped structure, and the magnetic attraction block (8) and the arc-shaped plate (14) are respectively arranged on opposite sides of the rack (7).

7. A protective fence according to claim 1, characterized in that: One end of the base (3) is provided with a plurality of mounting holes (13).

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