CN213038918U

CN213038918U - Foundation ditch faces limit protective structure

Info

Publication number: CN213038918U
Application number: CN202021493237.5U
Authority: CN
Inventors: 刘裕; 张建林; 葛修健
Original assignee: Chengdu Chengtou Construction Engineering Co ltd
Current assignee: Chengdu Chengtou Construction Engineering Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-04-23
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a foundation ditch faces limit protective structure, it includes the rail guard, be provided with the linkage unit who is used for being connected with adjacent rail guard on the rail guard, the rail guard includes two main montants, is provided with two horizontal poles between two main montants, the both ends of horizontal pole all are provided with the slider, two the spout has all been seted up on one side that main montant is close to each other, slider and spout sliding fit are provided with the telescopic link between two horizontal poles, be provided with on the main montant and be used for the spacing locating part to the slider, two the bottom of main montant all is provided with the bracing piece that is used for supporting the rail guard, the length direction of bracing piece is unanimous. The application has the effect of wide application range.

Description

Foundation ditch faces limit protective structure

Technical Field

The application relates to the field of foundation ditch protection, especially relate to a foundation ditch faces limit protective structure.

Background

The foundation pit refers to the space below the ground excavated for the construction of building foundation and basement, different foundation pits can be set up according to the circumstances before the engineering construction, the foundation pit belongs to the temporary engineering, and the foundation pit that sets up all can be provided with the foundation pit guardrail. The foundation pit guardrail mainly has the functions of warning and isolating, enclosing the periphery of the foundation pit, warning constructors that the foundation pit exists, avoiding safety problems on a plurality of construction sites due to the arrangement of the foundation pit guardrail, seeing the shadow of the foundation pit guardrail in subway construction, building construction, road construction and the like, so that the foundation pit guardrail is a protection spirit of the constructors, and reducing construction accidents to the maximum extent; when the guardrail is installed on the construction site, the foundation pit guardrails with different heights are needed in different areas due to the complex environment of the construction site.

The current chinese patent with an authorization announcement number CN207377264U discloses a spliced foundation pit protective guard, which has the key points of the technical scheme: including two stands, bracing piece and wire net module, the bracing piece both ends are equipped with U type connecting piece, the stand both sides be provided with the installation piece, all be equipped with the mounting hole on connecting piece and the installation piece, the connecting piece passes through the pin with the installation piece and links to each other, the stand surface scribbles reflective coating, the wire net module links to each other through the couple, the stand base includes four limbs, all sets up the hole on every limb.

In view of the above-mentioned related art, the inventor thinks that there is the defect that the guard rail height is fixed and the application scope is small.

SUMMERY OF THE UTILITY MODEL

In order to enlarge the application scope of rail guard, this application provides a foundation ditch and faces limit protective structure.

The application provides a foundation ditch faces limit protective structure adopts following technical scheme:

the utility model provides a foundation ditch faces limit protective structure, includes the rail guard, be provided with the linkage unit that is used for being connected with adjacent rail guard on the rail guard, the rail guard includes two main montants, is provided with two horizontal poles between two main montants, the both ends of horizontal pole all are provided with the slider, two the spout has all been seted up on one side that main montant is close to each other, slider and spout sliding fit are provided with the telescopic link between two horizontal poles, be provided with on the main montant and be used for the spacing locating part to the slider, two the bottom of main montant all is provided with the bracing piece that is used for supporting the rail guard, the length direction of bracing piece is unanimous.

By adopting the technical scheme, when the protective structure is installed, the main vertical rod in the protective guard is firstly installed on the ground, then the two cross rods are placed between the two main vertical rods, the sliding blocks at the two ends of the two cross rods are respectively placed in the two sliding grooves in the two main vertical rods, the positions of the sliding blocks at the two ends of the cross rods in the sliding grooves in the main vertical rods are adjusted, the position of the sliding block is limited by using a limiting piece, so that the height of the protective guard can be adjusted by adjusting the positions of the sliding blocks in the main vertical rods, then the telescopic rod is arranged between the two cross rods so as to complete the installation of one guard rail, finally the connecting unit is used for connecting with another guard rail, the steps are repeated to complete the installation of the protective structure, the cross rods can be in sliding fit with the main vertical rods, therefore, the height of the guard rail is adjusted according to different purposes, and the protection structure has the advantage of wide application range.

Preferably, the telescopic link includes outer pole and interior pole, the outer pole cover is established on interior pole, the one end that interior pole is located the outer pole is provided with the stopper, the spacing groove has been seted up along self length direction to the internal surface of outer pole, stopper and spacing groove sliding fit, still be provided with the spring in the outer pole, the one end of inner pole is kept away from with the outer pole to the one end of spring is connected, the other end and the interior pole of spring are located the one end of outer pole and are connected.

By adopting the technical scheme, the telescopic rod is arranged between the two cross rods, after the distance between the two cross rods is adjusted by the sliding of the sliding block, the telescopic rod can correspondingly extend or shorten, the maximum extension length is the length of the outer rod plus the inner rod, the shortest contraction length is the length of the outer rod, when the telescopic rod is extended, the spring is extended, so that the outer rod and the inner rod tend to be close to each other, make outer pole and interior pole have the trend of keeping away from each other, the spring makes the telescopic link can have flexible kinetic energy, and the cooperation of stopper and spacing groove makes interior pole can not drop from the outer pole, and the telescopic link can produce the distance change between two horizontal poles along with the horizontal pole when sliding on main montant, and the extension is perhaps shortened and then cooperates the altitude mixture control of rail guard, further the application scope of rail guard has been strengthened.

Preferably, the locating part is including wearing to establish the gag lever post on the slider, the one end of gag lever post is provided with handheld portion, the other end of gag lever post is worn to be equipped with and is carved the son, a plurality of through-holes that supply the gag lever post to wear to establish are all seted up to the both sides of main montant, the through-hole distributes along the length direction of main montant.

Through adopting above-mentioned technical scheme, when spacing carrying out the slider, at first hold handheld portion and insert the gag lever post from the through-hole of main montant one side, make the gag lever post pass the slider, extend to the opposite side of main montant, extend main montant from the opposite side of main montant, insert the gag lever post and keep away from one of handheld portion to serve to carve the son at last for the gag lever post can not follow and slide on the main montant, the simple structure of locating part, and the installation is convenient, alleviate staff intensity of labour's effect.

Preferably, the two ends of the telescopic rod are provided with flange plates, the two flange plates are respectively attached to one side, close to each other, of the two cross rods, a plurality of fixing bolts are inserted into the flange plates, a plurality of threaded holes are formed in one side, close to each other, of the cross rods, and the threaded holes are in threaded fit with the fixing bolts.

Through adopting above-mentioned technical scheme, the ring flange that the both ends of telescopic link set up can be tight laminate to the side of horizontal pole on, then twist the screw hole on the horizontal pole with fixing bolt on the ring flange again for ring flange and horizontal pole butt install the telescopic link between two horizontal poles, and the ring flange can increase the area of contact between telescopic link and the horizontal pole, has strengthened protective structure's stability.

Preferably, the bottom of the guard rail is provided with a mounting seat, the mounting seat comprises a fixed plate, a fixed block is arranged at the center of the fixed plate, a groove for the support rod to be inserted is formed in the fixed block, a tightening bolt penetrates through the side wall of the groove, and expansion bolts penetrate through a plurality of bottom corners of the fixed plate.

By adopting the technical scheme, the mounting seats are used for mounting the protective guard, before the protective structure is mounted, the two mounting seats are firstly mounted at the preset positions on the ground through the expansion bolts, then the supporting rods below the main vertical rods are inserted into the grooves formed in the central parts of the fixing plates, and finally the fastening bolts penetrating through the fixed jacking blocks are screwed tightly, so that the end parts of the fastening bolts are fastened on the supporting rods to complete the mounting of the single protective guard.

Preferably, the connecting unit comprises a receiving cylinder and a fixing rod, the receiving cylinder is arranged on one side, away from the cross rod, of one main vertical rod, the fixing rod is arranged on one side, away from the cross rod, of the other main vertical rod, and the receiving cylinder is in clearance fit with the fixing rod on the adjacent guard rail.

By adopting the technical scheme, when two adjacent guard railings are connected, the fixing rod on one guard railing is inserted into the bearing cylinder on the other guard railing, so that the two guard railings can be connected, the steps are repeated, a plurality of guard railings can be connected together to form a protection structure, the bearing cylinder and the fixing rod utilize the gravity of the guard railings to enhance the stability of the connection structure, the connection structure is simple, auxiliary tools are not needed during connection, and the use is convenient.

Preferably, the protective guard is provided with two extension rods, a connecting rod is arranged between the two extension rods, a through groove for the extension rods to be inserted is formed in the cross rod close to the top end of the main vertical rod, a vertical plate for fixing the extension rods is arranged on the cross rod, the vertical plate is fixedly arranged on the upper surface of the cross rod, a positioning bolt is arranged on the vertical plate in a penetrating mode, a plurality of positioning holes are formed in the extension rods and are arranged along the length direction of the extension rods, and the positioning bolt is in clearance fit with the positioning holes.

Through adopting above-mentioned technical scheme, the extension rod has increased the height of rail guard to a certain extent, and the cooperation between the locating hole of setting on the extension rod and the riser of setting on the horizontal pole at rail guard top can be adjusted the part of extension rod extension, uses fixing bolt and locating hole cooperation, and the simple structure of regulation, convenient to use.

Preferably, two sides of the connecting rod are provided with a plurality of LED lamps, the LED lamps are distributed along the length direction of the connecting rod, the upper surface of the extension rod is provided with a solar panel, and the solar panel is electrically connected with the LED lamps.

Through adopting above-mentioned technical scheme, the LED lamp can be opened in night, for the rail guard provides the warning effect, reminds the existence of car or people's air defense guardrail of passing, can also provide the illuminating effect for the pedestrian of passing, and solar panel can produce the electric energy to supply with the LED lamp, make the LED lamp need not other power when the night illumination, have environmental protection and energy saving's effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the protective structure, the sliding grooves are formed in the main vertical rods, the sliding blocks in sliding fit with the sliding grooves are arranged on the cross rods, so that the height of a single protective guard can be adjusted through the cross rods, and the protective structure has the effect of wide application range;

2. according to the guardrail, the telescopic rod is arranged between the two cross rods, and the telescopic rod can extend or shorten along with the distance between the two cross rods, so that the guardrail has stronger applicability;

3. this application is provided with LED lamp and solar panel through the top at the rail guard, and the LED lamp sends light when night, reminds vehicle and pedestrian protective structure's existence, also can provide illuminating effect, and solar panel can supply power to the LED lamp, has the effect of environmental protection and energy saving.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present application;

FIG. 2 is a schematic structural view of two main vertical rods and a mounting base according to one embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a telescoping pole according to one embodiment of the present application;

fig. 4 is a schematic structural diagram of a limiting element according to an embodiment of the present application.

Description of reference numerals: 1. protecting the fence; 11. a connection unit; 111. fixing the rod; 112. a receiving cylinder; 12. an extension pole; 121. positioning holes; 13. a connecting rod; 131. an LED lamp; 132. a solar panel; 2. a main vertical bar; 21. a chute; 22. a limiting member; 221. a limiting rod; 222. a hand-held portion; 223. a wedge; 23. a support bar; 24. a through hole; 3. a cross bar; 31. a slider; 32. a vertical plate; 321. positioning the bolt; 4. a telescopic rod; 41. an outer rod; 411. a spring; 412. a flange plate; 413. fixing the bolt; 414. a limiting groove; 42. an inner rod; 421. a limiting block; 5. a mounting seat; 51. a fixing plate; 511. an expansion bolt; 52. a fixed block; 521. a groove; 522. the bolt is pressed tightly.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses foundation ditch faces limit protective structure. Referring to fig. 1 and 2, the protective guard comprises a protective guard 1, wherein a connecting unit 11 is welded on the protective guard 1, and the connecting unit 11 is used for connecting with a connecting unit 11 on other protective guards 1, so that a plurality of protective guards 1 form a protective structure; rail guard 1 includes two main montants 2, be provided with two horizontal poles 3 between two main montants 2, the both ends of horizontal pole 3 all are provided with slider 31, spout 21 has all been seted up on one side that two main montants 2 are close to each other, slider 31 and spout 21 sliding fit, main montant 2 plays the supporting role to whole rail guard 1, two horizontal poles 3 slide and set up on two main montants 2, can change the height of rail guard 1 through the mode that changes the position of slider 31 on main montant 2, thereby increase rail guard 1's protective area, then enlarge protective structure's application scope.

Referring to fig. 1 and 3, a telescopic rod 4 is arranged between two cross rods 3, the telescopic rod 4 includes an outer rod 41 and an inner rod 42, the outer rod 42 is sleeved on the inner rod 41, the inner rod 42 can slide in the outer rod 41, a limit block 421 is arranged at one end of the inner rod 42 located in the outer rod 41, a limit groove 414 is formed in the inner surface of the outer rod 41 along the length direction, the limit block 421 is in sliding fit with the limit groove 414, the limit block 421 slides in the limit groove 414, the length of the limit groove 414 is slightly shorter than that of the outer rod 41, and the limit block 421 and the limit groove 414 enable the inner rod 42 to slide in the outer rod 41 and simultaneously not slide out of the; still be provided with spring 411 in outer pole 41, the one end of spring 411 is connected with the one end that outer pole 41 kept away from interior pole 42, the other end of spring 411 is located the one end in outer pole 41 with interior pole 42 and is connected, spring 411 sets up the top at outer pole 41, the other end of spring 411 is connected with interior pole 42, when interior pole 42 and outer pole 41 relative slip, exert outside pulling force or inside pressure to spring 411, make spring 411 compression or extension, when spring 411 extension, make interior pole 42 and outer pole 41 have the trend of being close to each other, when spring 411 compression, make interior pole 42 and outer pole 41 have the trend of keeping away from each other, then let interior pole 42 and outer pole 41 make up the characteristic that has flexible when together.

Referring to fig. 1 and 4, a limiting member 22 is arranged on a main vertical rod 2, the limiting member 22 is used for limiting a sliding block 31, the limiting member 22 includes a limiting rod 221 arranged on the sliding block 31 in a penetrating manner, the limiting rod 221 can penetrate through the main vertical rod 2 and the sliding block 31, one end of the limiting rod 221 is provided with a handheld portion 222, the other end of the limiting rod 221 penetrates through a wedge 223, both sides of the main vertical rod 2 are provided with a plurality of through holes 24 for the limiting rod 221 to penetrate through, when the sliding block 31 is limited, a worker holds the handheld portion 222 to align the limiting rod 221 with the through holes 24, so that the limiting rod 221 penetrates through the through holes 24 on one side of the main vertical rod 2 and then penetrates through the sliding block 31 in the sliding groove 21, and then penetrates through the through holes 24 on the other side of the main vertical rod 2, and the wedge 223 is inserted into the other end of the limiting rod 221; the through holes 24 are distributed along the length direction of the main vertical rod 2, when the sliding block 31 slides in the main vertical rod 2, different stop positions can be arranged according to different requirements, and the different through holes 24 distributed on the main vertical rod 2 can enable the limiting rod 221 to limit the sliding block 31 at different positions.

Referring to fig. 1 and 3, the fixed both ends that set up at telescopic link 4 of ring flange 412, telescopic link 4 is connected with one side that two horizontal poles 3 are close to each other respectively, insert on the ring flange 412 and be equipped with a plurality of fixing bolt 413, when connecting telescopic link 4 and horizontal pole 3, at first laminate the ring flange 412 on horizontal pole 3, then twist fixing bolt 413 into on the horizontal pole 3, set up on the horizontal pole 3 a plurality ofly with fixing bolt 413 screw-thread fit's screw hole, the area of contact between telescopic link 4 and the horizontal pole 3 has been increaseed in the setting of ring flange 412, the stability of rail guard 1 structure has been strengthened.

Referring to fig. 1 and 2, a mounting seat 5 is arranged at the bottom of a protective guard 1, support rods 23 for supporting the protective guard 1 are arranged at the bottom ends of two main vertical rods 2, and when the protective guard 1 is mounted, the mounting seat 5 is firstly mounted at a specified position, and then the support rods 23 are connected with the mounting seat 5; the mounting seat 5 comprises a fixing plate 51, the fixing plate 51 increases the contact area between the guard rail 1 and the ground, the stability of the guard rail 1 is enhanced, a fixing block 52 is arranged at the center of the fixing plate 51, a groove 521 for inserting the support rod 23 is formed in the fixing block 52, a fastening bolt 522 penetrates through the side wall of the groove 521, when the support rod 23 and the mounting seat 5 are connected, the support rod 23 is firstly inserted into the groove 521, then the fastening bolt 522 is screwed, so that one end of the fastening bolt 522 in the groove 521 is abutted to the support rod 23, and the support rod 23 is not easy to fall off the groove 521; expansion bolts 511 are arranged at a plurality of bottom corners of the fixing plate 51 in a penetrating manner, and the expansion bolts 511 are driven into the ground, so that the fixing plate 51 is more stably connected with the ground.

Referring to fig. 1 and 2, the connection unit 11 includes a receiving cylinder 112 and a fixing rod 111, the receiving cylinder 112 is disposed on one side of one of the main vertical rods 2 away from the cross rod 3, the fixing rod 111 is disposed on one side of the other main vertical rod 2 away from the cross rod 3, the receiving cylinder 112 is in clearance fit with the fixing rod 111 on the adjacent guard rail 1, when connecting a plurality of guard rails 1, the fixing rod 111 on one guard rail 1 is inserted into the receiving cylinder 112, the above steps are repeated, connection of the protection structure is completed, the fixing rod 111 and the connection cylinder are simple in structure, no other tool is needed for assistance during connection, connection is convenient, and convenience in use is enhanced.

Referring to fig. 1, two extension rods 12 are arranged on a guard rail 1, the two extension rods 12 are inserted into a cross rod 3 at the top end of the guard rail 1, and the extension rods 12 can slide on the cross rod 3, so that the height adjusting range of the guard rail 1 is enlarged; when the extension rod 12 is installed, firstly the extension rod 12 is inserted into the cross rod 3, then the position of the extension rod 12 is adjusted, and finally the positioning bolt 321 is screwed into the extension rod 12 after passing through the vertical plate 32, so that the position of the extension rod 12 on the cross rod 3 is fixed; a connecting rod 13 is arranged between the two extension rods 12, a plurality of LED lamps 131 are arranged on two side surfaces of the connecting rod 13, the LED lamps 131 can provide lighting effect at night, and the bright LED lamps 131 also enhance the visibility of the protective guard 1 at night; a plurality of LED lamps 131 distribute along the length direction of connecting rod 13, and a plurality of LED lamps 131 also make the light stronger, and the upper surface of extension rod 12 is provided with solar panel 132, and solar panel 132 is connected with LED lamp 131 electricity, and solar panel 132 can be for the power supply of LED lamp 131, has energy-concerving and environment-protective advantage.

The implementation principle of the foundation pit edge protection structure in the embodiment of the application is as follows: when the protective structure is installed, firstly, the two installation bases 5 are placed at a preset installation position, the fixed plate 51 is attached to the ground, and then the expansion bolts 511 on the fixed plate 51 are screwed into the ground to complete the fixation of the installation bases 5; then, the two main vertical rods 2 are respectively inserted into the two mounting seats 5, the bolts 522 are tightly screwed, so that the two main vertical rods 2 are fixed on the mounting seats 5, then the two cross rods 3 slide into the main vertical rods 2 from the upper parts of the two main vertical rods 2, the cross rods 3 at the lower parts are aligned to preset positions, and then the limiting parts 22 are used for limiting the slide blocks 31 at the two ends of the cross rods 3, so that the cross rods 3 at the lower parts cannot slide; then, the flange 412 at the bottom ends of the telescopic rods 4 is attached to the upper surface of the cross rod 3 below, the fixing bolt 413 is screwed, then the position of the other cross rod 3 on the main vertical rod 2 is limited through the limiting part 22, the flange 412 at the top end of the telescopic rod 4 is attached to the lower surface of the cross rod 3 above, the fixing bolt 413 is screwed, and the installation of the cross rod 3 and the telescopic rod 4 is completed; finally, inserting the two extension rods 12 into the upper cross rod 3, enabling the connecting rod 13 and the LED lamp 131 and the solar panel 132 on the connecting rod 13 to be located at the top end of the guard rail 1, enabling the positioning bolt 321 on the vertical plate 32 to penetrate through the vertical plate 32 and then be inserted into the extension rods 12, completing positioning of the extension rods 12, and completing installation of one guard rail 1; finally, after the mounting base 5 of another protective guard 1 is mounted through the steps, the fixing rod 111 on the main vertical rod 2 in the other protective guard 1 is inserted into the receiving barrel 112 on the main vertical rod 2 in the mounted protective guard 1, so that the two protective guards 1 are connected together, and the steps are repeated, so that the plurality of protective guards 1 form a protective structure.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a foundation ditch faces limit protective structure, includes rail guard (1), its characterized in that: be provided with on rail guard (1) and be used for the linkage unit (11) of being connected with adjacent rail guard (1), rail guard (1) includes two main montants (2), is provided with two horizontal poles (3) between two main montants (2), the both ends of horizontal pole (3) all are provided with slider (31), two spout (21) have all been seted up on one side that main montant (2) are close to each other, slider (31) and spout (21) sliding fit are provided with telescopic link (4) between two horizontal poles (3), be provided with on main montant (2) and be used for spacing locating part (22) to slider (31), two the bottom of main montant (2) all is provided with bracing piece (23) that are used for supporting rail guard (1), the length direction of bracing piece (23) is unanimous with the length direction of main montant (2).

2. The foundation pit edge protection structure according to claim 1, wherein: telescopic link (4) are including outer pole (41) and interior pole (42), outer pole (41) cover is established on interior pole (42), the one end that interior pole (42) is located outer pole (41) is provided with stopper (421), spacing groove (414) have been seted up along self length direction to the internal surface of outer pole (41), stopper (421) and spacing groove (414) sliding fit, still be provided with spring (411) in outer pole (41), the one end of interior pole (42) is kept away from with outer pole (41) to the one end of spring (411) is connected, the other end and interior pole (42) of spring (411) are located the one end of outer pole (41) and are connected.

3. The foundation pit edge protection structure according to claim 1, wherein: the locating part (22) is including wearing to establish gag lever post (221) on slider (31), the one end of gag lever post (221) is provided with handheld portion (222), wedge (223) are worn to be equipped with by the other end of gag lever post (221), a plurality of through-holes (24) that supply gag lever post (221) to wear to establish are all seted up to the both sides of main montant (2), the length direction distribution of main montant (2) is followed in through-hole (24).

4. A foundation pit edge protection architecture according to claim 3, wherein: the both ends of telescopic link (4) all are provided with ring flange (412), two ring flange (412) laminate with one side that two horizontal poles (3) are close to each other respectively, insert on ring flange (412) and be equipped with a plurality of fixing bolt (413), a plurality of screw holes have been seted up on one side that horizontal pole (3) are close to each other, screw hole and fixing bolt (413) screw-thread fit.

5. The foundation pit edge protection structure according to claim 1, wherein: the bottom of rail guard (1) is provided with mount pad (5), mount pad (5) are including fixed plate (51), the central point of fixed plate (51) puts and is provided with fixed block (52), offer on fixed block (52) and supply bracing piece (23) to insert recess (521) of establishing, wear to be equipped with on the lateral wall of recess (521) and support tight bolt (522), expansion bolts (511) all wear to be equipped with at a plurality of base angles of fixed plate (51).

6. The foundation pit edge protection structure according to claim 1, wherein: the connecting unit (11) comprises a bearing cylinder (112) and a fixing rod (111), the bearing cylinder (112) is arranged on one side, away from the transverse rod (3), of one main vertical rod (2), the fixing rod (111) is arranged on one side, away from the transverse rod (3), of the other main vertical rod (2), and the bearing cylinder (112) is in clearance fit with the fixing rod (111) on the adjacent protective fence (1).

7. The foundation pit edge protection structure according to claim 1, wherein: the guardrail is provided with two extension rods (12) on the guardrail (1), two be provided with connecting rod (13) between extension rod (12), be close to main montant (2) top set up on horizontal pole (3) and supply extension rod (12) to insert the logical groove of establishing, be provided with riser (32) that are used for fixed extension rod (12) on horizontal pole (3), riser (32) are fixed to be set up the upper surface at horizontal pole (3), wear to be equipped with positioning bolt (321) on riser (32), a plurality of locating hole (121) have been seted up on extension rod (12), and are a plurality of the length direction of extension rod (12) is arranged along locating hole (121), positioning bolt (321) and locating hole (121) clearance fit.

8. The foundation pit edge protection structure according to claim 7, wherein: two sides of connecting rod (13) all are provided with a plurality of LED lamp (131), and are a plurality of the length direction of connecting rod (13) is followed to LED lamp (131) distributes, the upper surface of extension pole (12) is provided with solar panel (132), solar panel (132) are connected with LED lamp (131) electricity.