A construction edge protection mechanism

Abstract

The present invention relates to the field of construction protection equipment, and discloses a construction edge protection mechanism, comprising a plurality of columns and a blocking component arranged between two adjacent columns, the columns comprising a support tube body, an ejection support assembly, a depth adjustment locking mechanism, an anti-slip limit assembly, a sealing assembly and a synchronous drive mechanism, the ejection support assembly comprising a support cone tube with the tip facing downward, an elastic drive component being arranged between the support tube body and the support cone tube, the depth adjustment locking mechanism being able to limit the maximum ejection stroke of the support cone tube and being able to further deepen the penetration depth of the support cone tube after the support cone tube is ejected, and limiting the movement of the support cone tube relative to the support tube body after adjustment, the synchronous drive mechanism being able to synchronously drive the limiter to extend and the airbag layer to expand or synchronously drive the limiter to retract and the airbag layer to shrink, the mechanism making the installation or disassembly of the columns more labor-saving, and the anti-dumping performance of the columns being improved after installation, the internal sealing performance of the columns being good, and the service life being improved.

Description

Technical Field

[0001] The present invention relates to the field of building construction protection equipment, in particular to a construction edge protection mechanism. Background Art

[0002] During the construction process, foundation pit excavation work must be carried out first. The depth of the foundation pit ranges from a few meters to more than ten meters. If a person falls into the foundation pit, it will cause a serious personal accident. Therefore, temporary protection mechanisms need to be set up during foundation pit excavation to prevent people from falling.

[0003] Chinese patent publication number CN114150932B discloses a foundation pit edge protection device, comprising a plurality of columns and a connecting net between the columns, a drive cavity provided inside the columns, a limiting hole provided on the side walls of the columns, a support assembly provided at the bottom of the columns, the support assembly comprising an expansion block, a drive block, a drive bar, and a drive component, the expansion block being provided at the limiting hole, the expansion block being rotatably connected to the column, the drive block being provided in the drive cavity, the drive block being slidably connected to the column, the side wall of the drive block abutting against the side wall of the expansion block, one end of the drive bar being connected to the drive block, the other end of the drive bar being connected to the drive component, and the drive component being capable of driving the drive bar to move; The side wall of the top of the column is provided with a driving groove, and the driving groove is connected to the driving cavity, and the driving component includes an active block, a clamping block and a clamping spring, the active block is arranged at the driving groove, the active block extends out of the driving groove, the active block and the column are rotatably connected, and the active block and the driving bar are fixedly connected at one end away from the driving block; the clamping block is located in the driving cavity, the clamping block and the column are slidably connected, the bottom wall of the clamping block and the top wall of the active block abut, and a locking structure is provided between the clamping block and the active block; the clamping spring is arranged at one end of the clamping block away from the active block, one end of the clamping spring is fixedly connected to the column, and the other end of the clamping spring is fixedly connected to the clamping block.

[0004] The above scheme has the following shortcomings: 1. The surface soil is exposed to the air and has a high hardness. The operator needs to press hard to insert the bottom of the column through the surface soil and deep into the soil layer. Sometimes, hammering equipment is needed to insert it to a sufficient depth; 2. After the expansion block expands, the limit hole opens, and the soil layer is connected to the inside of the driving groove. This design will cause water vapor or wet soil to enter the driving groove. Once water vapor or wet soil enters the driving groove, the water vapor and wet soil corrode the various parts inside the driving groove, causing the internal parts to get stuck or fail. In addition, once the wet soil adheres between the driving block and the expansion block and dries up, the driving block will not be able to descend smoothly, and the expansion block will not be able to automatically close under the action of the pulling force. The expansion block is in an expanded state, and it is difficult to pull the column out of the soil by manpower. Summary of the Invention

[0005] Aiming at the shortcomings of the prior art foundation pit edge protection mechanism that is laborious to install and difficult to pull out, the present invention provides a construction edge protection mechanism that is suitable for foundation pits and requires little effort to install and disassemble.

[0006] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0007] A construction edge protection mechanism includes a plurality of columns and a blocking component arranged between two adjacent columns, wherein the columns include:

[0008] support tube body;

[0009] The ejection support assembly includes a support cone tube located within the support tube body and with the tip facing downward. The upper end of the support cone tube is located outside the upper end of the support tube body. An elastic drive component is provided between the support tube body and the support cone tube. When the elastic drive component is compressed by the support cone tube, the tip of the support cone tube can be ejected a certain distance from the lower end of the support tube body.

[0010] The depth adjustment locking mechanism is provided between the upper end of the support cone and the upper end of the support tube body, which limits the maximum ejection stroke of the support cone and can further deepen the penetration depth of the support cone after the support cone is ejected, and limits the movement of the support cone relative to the support tube body after adjustment;

[0011] An anti-slip limit assembly includes a sealing and telescopic arrangement on the side wall of the support cone, with a plurality of groups of limit members spaced longitudinally along the side wall. The limit members are located on both sides of the support cone and are cross-distributed. The limit members are arranged with their tips facing outward and can be completely retracted within the support tube body or partially extended outside the support tube body. A first elastic member is arranged on the inner wall of the support cone to drive the limit members into a retracted state.

[0012] The sealing assembly includes an inflatable or deflable airbag layer circumferentially disposed on the outer wall of the support cone. When the support cone is extended to the maximum stroke achievable by depth adjustment, the airbag layer remains between the support cone and the support tube and seals the fitting gap therebetween after expansion.

[0013] The synchronous driving mechanism can synchronously drive the limiting member to extend and the airbag layer to expand, or synchronously drive the limiting member to retract and the airbag layer to shrink.

[0014] With the above scheme, the tip of the supporting cone tube in the column faces downward and is ejected downward with a certain impact force by using the elastic driving component. The ejected supporting cone tube can break through the surface soil of the ground and penetrate into a certain depth. The operator only needs to use the depth adjustment locking mechanism to further deepen the insertion depth of the supporting cone tube, and can adjust and stop at any time, and can reach the required depth without external hammering, which is more labor-saving than the existing technology; an anti-slip limit assembly and a sealing assembly are provided, and a plurality of limit members longitudinally spaced in the anti-slip limit assembly can penetrate into the soil in a direction perpendicular to the supporting cone tube, thereby improving the grip strength of the supporting cone tube in the soil, thereby improving the support The anti-dumping performance of the cone tube, and the synchronous driving mechanism can drive all the limit blocks to extend and synchronously drive the airbag layer to expand. The expansion of the airbag layer can achieve the sealing of the joint between the supporting cone tube and the supporting tube body, so that the part below the soil inside the entire column is isolated from water vapor and wet soil; it can also ensure that the airbag layer retracts synchronously after all the limit blocks retract, so that the supporting cone tube can move upward smoothly to separate from the soil layer, making it easier to pull out the supporting cone tube. The above structure can make the installation or disassembly of the column more labor-saving, and the anti-dumping performance of the column is improved after installation, and the internal sealing performance of the column is good, which can protect the normal operation of various parts inside the column.

[0015] Preferably, the elastic drive component includes a fixed rod fixed horizontally in the supporting cone tube and an elastic rib fixed horizontally in the supporting tube body. The upper end of the supporting cone tube is symmetrically provided with a clearance groove downward in a direction perpendicular to the fixed rod. The elastic rib is vertically distributed above the fixed rod and is fitted with the clearance groove.

[0016] By adopting the above scheme, when the supporting cone moves upward relative to the supporting tube body, the fixed rod rises and presses against the elastic reinforcement. After the elastic reinforcement is stretched, it gives the fixed rod a strong driving force. Just loosen the supporting cone, and the supporting cone will be ejected under the drive of the elastic reinforcement. The tip of the ejected supporting cone can easily penetrate into the soil layer.

[0017] Preferably, a compression drive component is provided between the elastic rib and the support tube body to further increase the ejection driving force when the support cone tube is ejected. The compression drive component includes a sleeve that is interference-fitted on the middle part of the elastic rib, a metal spring arranged on the sleeve, and a force-bearing rod that is arranged on the inner wall of the support tube body above the metal spring and interlaced with the giveway groove. A horizontal abutment piece is provided at the end of the metal spring away from the sleeve, and the abutment piece rises a certain distance and then abuts and cooperates with the force-bearing rod.

[0018] By adopting the above scheme, in the compression drive component, the metal shrapnel moves upward with the elastic rib. After contacting the force-bearing rod, the metal shrapnel is compressed and deformed. When it resets, the ejection force will be further superimposed on the ejection force of the elastic rib, thereby increasing the force of the support cone tube to be ejected. The abutment plate is used to increase the contact area between the metal shrapnel and the force-bearing rod.

[0019] Preferably, the metal spring sheet includes two arc-shaped spring sheets that are far away from each other in the middle, and the two ends of the arc-shaped spring sheet are respectively fixedly connected to the sleeve and the abutment sheet. A second elastic member with two ends fixed to the two is provided between the arc-shaped spring sheets; the lower end of the sleeve is fixed with an arc-shaped guide member whose opening is downward for driving the fixing rod and the elastic rib to cooperate with each other and is located in the center of the elastic rib.

[0020] By adopting the above scheme, the superimposed ejection force of the two arc-shaped springs is large, and the second elastic member further enhances the ejection force. The arc-shaped guide is used to ensure that the forces of the elastic ribs, metal springs, etc. remain in the same straight line, so that the superimposed driving force remains in the same straight line.

[0021] Preferably, the depth adjustment locking mechanism includes an external thread provided on the outer wall of the upper end of the support tube body and a rotating sleeve with an internal thread. The upper end of the supporting cone tube is rotatably connected to the bottom of the rotating sleeve, and grab ears are provided on both sides of the rotating sleeve to facilitate driving it to rotate.

[0022] By adopting the above scheme, the rotating sleeve is rotatably connected to the upper end of the supporting cone tube. When the rotating sleeve abuts the supporting tube body, if the rotating sleeve is not rotated, the rotating sleeve is located above the supporting tube body, which limits the maximum downward stroke of the supporting cone tube. When the rotating sleeve is matched with the external thread, the supporting cone tube can continue to move downward relative to the supporting tube body with the rotating sleeve, thereby achieving further depth adjustment.

[0023] Preferably, the synchronous drive mechanism includes a piston drive assembly located below and sealed with the inner wall of the support cone tube, a branch connecting rod located above the piston drive assembly and staggered with the ejection support assembly, and a drive block located above the support connecting rod and vertically guided with the support tube body. A pressing assembly is provided on the rotating sleeve and is threadedly engaged with the rotating sleeve after a certain distance from the pressing drive block. The piston drive assembly includes a piston block, a rod body with the piston block away from one end of the branch connecting rod, and a drive member located below the rod body for driving the limit member to extend. A mating ring that is sealed with the rod body is provided on the inner wall of the support cone tube, and an air hole connected to the airbag layer is provided on the inner wall of the support cone tube between the piston block and the mating ring.

[0024] By adopting the above scheme, during the downward pressure process of the top pressure assembly, a sealed chamber is formed between the piston and the mating ring. When the piston descends, the air pressure in the sealed chamber is compressed, and the gas will be injected into the airbag layer. The airbag layer expands and elastically abuts against the inner wall of the support tube body, thereby achieving sealing. At the same time, the driving part descends and cooperates with the limit part to drive the limit part to extend, thereby strengthening the grip strength on the soil layer.

[0025] Preferably, the two sides of the driving member facing the limiting member are vertical mating surfaces, the bottom of the driving member is set with the tip facing downward and has symmetrically distributed abutment slopes on both sides, and the side of the limiting member close to the first elastic member is set as a mating slope that cooperates with the abutment slope.

[0026] By adopting the above scheme, when the abutting inclined surfaces on both sides of the driving member abut against the matching inclined surfaces of the limiting member, the limiting member can be driven to move outward, and the vertical matching surfaces on both sides of the driving member abut against one end of the limiting member close to the elastic member, limiting the retraction of the driving member. Therefore, when the driving member runs downward to a certain stroke, all the driving members are in an extended state.

[0027] Preferably, a third elastic member is provided between the support tube body and the support cone tube, which drives the driving block to rise rapidly when the top pressure assembly is separated from the rotating sleeve. An abutment rod is horizontally provided in the support tube body, which passes through the clearance groove and the gap between the branch connecting rods in sequence. The upper end of the third elastic member is fixed to the lower end of the driving block and the lower end is in abutment with the upper end of the abutment rod.

[0028] With the above solution, the third elastic member can drive the driving block to automatically rise and reset, thereby driving the piston driving assembly to rise synchronously, accelerating the retraction rate of the airbag layer and the retraction of the limit member.

[0029] Preferably, the pushing assembly includes a driving handle, a matching disk, a threaded section and a pushing rod from top to bottom. A threaded hole matching the threaded section is provided on the rotating sleeve. A top groove for partial insertion of the pushing rod is recessed at the upper end of the driving block. Sliding grooves with a larger inner portion and a smaller outer portion are circumferentially distributed on the outer ring wall of the matching disk. One to four matching pipe fittings are embedded and slidably mounted on the sliding grooves. A fixed insert is protruded from the outer wall of the lower end of the supporting tube body with the same number of matching pipe fittings. There is an assembly rod that can pass through the matching pipe fitting and the blocking component in sequence and then be plugged into the fixed insert.

[0030] With the above solution, the mating pipe can rotate relative to the mating disk. Therefore, when the driving handle is rotated, the push rod can be lowered and limited, and the blocking component will not cause any obstruction during the entire driving process.

[0031] Preferably, a pre-positioning mechanism is provided at the lower end of the outer ring wall of the support tube body, the pre-positioning mechanism includes a support extending horizontally outward from the bottom of the outer ring wall of the support tube body, and a plurality of positioning parts distributed circumferentially around the support tube body on the support, the positioning part includes a positioning column plugged into the support, the upper end of the positioning column is a horizontally extending stepped flat head, and the lower end of the positioning column is a positioning cone with the pointed end downward.

[0032] With the above solution, when the pre-positioning mechanism is used, the supporting tube body can be positioned first and a certain gripping strength can be increased. When the operator steps on the support, the action of pulling the supporting cone tube upward can be easily achieved.

[0033] The present invention has significant technical effects due to the adoption of the above technical solutions: the tip of the supporting cone tube in the column faces downward and is ejected downward with a certain impact force by using an elastic driving component. The ejected supporting cone tube can break through the surface soil of the ground and penetrate into a certain depth. The operator only needs to use the depth adjustment locking mechanism to further deepen the insertion depth of the supporting cone tube, and can adjust and stop at any time, and can reach the required depth without external hammering, which is more labor-saving than the existing technology; an anti-slip limit assembly and a sealing assembly are provided, and a plurality of limit members longitudinally spaced apart in the anti-slip limit assembly can penetrate into the soil in a direction perpendicular to the supporting cone tube, thereby improving the grip of the supporting cone tube in the soil. Strength, thereby improving the anti-dumping performance of the supporting cone tube, and the synchronous driving mechanism can drive all the limit blocks to extend and synchronously drive the airbag layer to expand. The expansion of the airbag layer can achieve the sealing of the joint between the supporting cone tube and the supporting tube body, so that the part below the soil inside the entire column is isolated from water vapor and wet soil; it can also ensure that the airbag layer retracts synchronously after all the limit blocks retract, so that the supporting cone tube can move upward smoothly to separate from the soil layer, making it easier to pull out the supporting cone tube. The above structure can make the installation or disassembly of the column easier, and the anti-dumping performance of the column is improved after installation, and the internal sealing performance of the column is good, which can protect the normal operation of various parts inside the column. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is an axonometric diagram of a construction edge protection mechanism of this embodiment;

[0035] Figure 2 This is a front view of the assembled column of this embodiment;

[0036] Figure 3 yes Figure 2 AA cross-sectional view;

[0037] Figure 4 yes Figure 3 A magnified view of A;

[0038] Figure 5 yes Figure 3 An enlarged view of B;

[0039] Figure 6 yes Figure 3 Cross-sectional view of BB;

[0040] Figure 7 yes Figure 6 Enlarged view of C;

[0041] Figure 8 yes Figure 6 The enlarged view of D;

[0042] Figure 9 This is an exploded view of the top pressure assembly and the column of this embodiment;

[0043] Figure 10 yes Figure 9 Cross-sectional view of CC;

[0044] Figure 11 yes Figure 10 Enlarged view of E;

[0045] Figure 12 yes Figure 10 The enlarged view of F;

[0046] Figure 13 is an axonometric view of the supporting cone of this embodiment;

[0047] Figure 14 yes Figure 13 The enlarged image of G;

[0048] Figure 15 is a front view of the piston drive assembly of this embodiment;

[0049] Figure 16 1 is an axonometric view of the piston drive assembly of this embodiment.

[0050] The parts designated by the numbers in the above drawings are as follows: 1. Support tube; 101. External thread; 2. Blocking member; 4. Driving handle; 5. Matching plate; 6. Sliding groove; 7. Matching pipe fitting; 8. Rotating sleeve; 9. Grasping ear; 10. Fixed insert; 11. Assembly rod; 12. Support; 13. Positioning member; 131. Positioning column; 132. Stepping flat head; 133. Positioning spike; 14. Support cone; 141. Make way groove; 142. Through groove; 15. Limiting member; 16. Fixed rod; 17. Force rod; 19. Branch connecting rod; 20. Driving block; 21. Top groove; 22. Push rod; 23. Threaded section; 24. Piston block; 25. Rod body; 26. Airbag layer; 27. Air hole; 28. Matching ring; 29. ​​Mounting ring; 30. Pulley; 31. Elastic rib; 32. Sleeve; 33. Abutment sheet; 34. Arc-shaped spring sheet; 35. Second elastic member; 36. Arc-shaped guide member; 37. First mounting hole; 38. Limit pin; 39. Third elastic member; 40. Driving member; 41. Abutment slope; 42. Matching slope; 43. First elastic member; 45. Guide groove; 44. Guide block; 46. Over-groove. DETAILED DESCRIPTION

[0051] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0052] Example

[0053] A construction edge protection mechanism, referring to Figures 1-16As shown, it includes several columns and a blocking component 2 arranged between two adjacent columns. The blocking component 2 is a metal plate or a metal fence. The column includes an internal hollow support tube body 1, an ejection support component, a depth adjustment locking mechanism, an anti-slip limit component, a sealing component and a synchronous drive mechanism.

[0054] A pre-positioning mechanism is provided at the lower end of the outer ring wall of the support tube body 1. Figure 1 As shown, the pre-positioning mechanism includes a support 12 extending horizontally outward from the bottom of the outer ring wall of the support tube body 1, and a plurality of positioning members 13 distributed circumferentially around the support tube body 1 on the support 12. The positioning member 13 includes a positioning column 131 plugged into the support 12. The upper end of the positioning column 131 is a horizontally extending stepped flat head 132, and the lower end of the positioning column 131 is a positioning cone thorn 133 with the tip pointing downward. By stepping on the positioning member 13 downward, the column can be pre-positioned on the soil.

[0055] Ejection support assembly, see Figure 2-Figure 7 As shown, it includes a support cone tube 14 located in the support tube body 1 and with the tip facing downward. The upper end of the support cone tube 14 is located outside the upper end of the support tube body 1, and the support cone tube 14 is gap-matched with the inner wall of the support tube body 1. An elastic driving component is provided between the support tube body 1 and the support cone tube 14. After the support cone tube 14 compresses the elastic driving component, its tip can be ejected from the lower end of the support tube body 1 for a certain stroke. The elastic driving component includes a fixing rod 16 fixed horizontally in the support cone tube 14 and an elastic rib 31 fixed horizontally in the support tube body 1. First mounting holes 37 are symmetrically opened on both sides of the support tube body 1, and a limiting pin 38 with the large head facing outward is inserted in the first mounting hole 37. The two ends of the elastic rib 31 are fixedly connected to the small head end of the limiting pin 38. The upper end of the support cone tube 14 is symmetrically opened with a clearance groove 141 downwardly in a direction perpendicular to the fixing rod 16. The elastic rib 31 is vertically distributed above the fixing rod 16 and is penetrated and matched with the clearance groove 141.

[0056] A compression drive component is provided between the elastic rib 31 and the support tube body 1 to further increase the ejection driving force of the support cone 14 when it pops out. The compression drive component includes a sleeve 32 that is sleeved in the middle of the elastic rib, a metal spring arranged on the sleeve 32, and a force-bearing rod 17 that is arranged on the inner wall of the support tube body 1 above the metal spring and interlaced with the give way groove 141. A horizontal abutment piece 33 is provided at one end of the metal spring away from the sleeve 32. The metal spring includes two pieces of metal springs that are arranged away from each other in the middle. An arc-shaped spring piece 34 is provided, and the two ends of the arc-shaped spring piece 34 are fixedly connected to the sleeve 32 and the abutment piece 33 respectively. A second elastic member 35 with both ends fixed to the two is provided between the arc-shaped spring piece 34 and between the sleeve 32 and the abutment piece 33. The second elastic member 35 is a spring; the lower end of the sleeve 32 is fixed with an opening downward for driving the fixing rod 16 and the elastic rib 31 to cooperate with the elastic rib 31. The abutment piece 33 rises a distance and then abuts and cooperates with the force-bearing rod 17.

[0057] In order to ensure the vertical and smooth ejection of the support cone 14, see Figure 5 as well as Figure 13 As shown, a mounting ring 29 is protruded on the outer ring wall of the support cone tube 14, and grooves are recessed on the outer ring wall of the mounting ring 29 at intervals around the circumference of the support cone tube 14. A pulley 30 that fits the inner wall of the support tube body 1 is rotatably arranged in the groove, and the pulley 30 fits the support tube body 1.

[0058] Depth adjustment lock mechanism Figure 9-10 As shown, it includes an external thread 101 set on the outer wall of the upper end of the support tube body 1 and a rotating sleeve 8 with an internal thread. The upper end of the supporting cone 14 is rotatably connected to the bottom of the rotating sleeve 8. The upper end of the supporting cone 14 extends horizontally outward to limit its separation from the rotating sleeve 8. The limit block is embedded in the bottom of the rotating sleeve 8 and can rotate relative to the rotating sleeve 8. Grabbing ears 9 are provided on both sides of the rotating sleeve 8 to facilitate driving it to rotate.

[0059] Anti-drop limit assembly Figure 8 and Figure 12As shown, it includes a sealing and telescopic arrangement on the side wall of the support cone 14 and several groups of limit members 15 are arranged at longitudinal intervals along the side wall, a through groove 142 for the limit member 15 to be inserted is provided on the outer wall of the support cone 14, and an elastic rubber layer is wrapped around the outside of the limit member 15 to ensure that the limit member 15 maintains a sealed plug-in state with the through groove 142 during the expansion and contraction process, the limit members 15 are located on both sides of the support cone 14 and are cross-distributed, the limit members 15 are arranged with the tip facing outward and can be completely received in the support tube body 1 or partially extended out of the support tube body 1, a first elastic member 43 is provided on the inner wall of the support cone 14 to drive the limit member 15 to be in a retracted state, the first elastic member 43 is a tension spring, and the two ends of the tension spring are respectively fixedly connected to the limit member 15 and the end of the support cone 14 away from the limit member 15, and the extension of the limit member 15 is controlled by the drive of the synchronous drive mechanism.

[0060] Seal assembly see Figure 5 Shown and Figure 10 As shown, it includes an airbag layer 26 that is circumferentially arranged on the outer ring wall of the support cone 14 and can expand or contract. The support cone 14 is provided with air holes 27 that are connected to the airbag layer 26. The expansion or contraction of the airbag layer 26 is controlled by the drive of the synchronous drive mechanism.

[0061] Synchronous drive mechanism Figure 10 、 Figure 15 as well as Figure 16 As shown, it includes a piston driving assembly located below and sealed with the inner wall of the support cone tube 14, a branch connecting rod 19 located above the piston driving assembly and staggered with the ejection support assembly, and a driving block 20 located above the support connecting rod and vertically guided with the support tube body 1. The outer ring wall of the driving block 20 is vertically protruded with a guide block 44, and the inner wall of the upper end of the support cone tube 14 is recessed with a guide groove 45 for inserting the guide block 44. Four branch connecting rods 19 are arranged at intervals. The piston driving assembly includes a piston block 24, a rod body 25 at one end of the piston block 24 away from the branch connecting rod 19, and a driving member 40 located below the rod body 25 for driving the limit member 15 to extend. The inner wall of the supporting cone tube 14 is provided with a mating ring 28 that is sealed with the rod body 25. The air hole 27 is located between the driving member 40 and the mating ring 28. The end of the driving member 40 away from the rod body 25 is vertically downwardly arranged with vertical mating surfaces on both sides. The bottom of the driving member 40 is pointed downwardly and has symmetrically distributed abutment slopes 41 on both sides. The side of the limiting member 15 close to the first elastic member 43 is provided with a mating slope 42 that cooperates with the abutment slope 41. The driving member 40 is provided with a groove 46 for all the first elastic members 43 to pass through. A top pressure driving block 20 is inserted on the rotating sleeve 8 and is threadedly matched with the rotating sleeve 8 after a certain distance. Figure 9 and Figure 10As shown, the pressing assembly includes a driving handle 4, a matching disk 5, a threaded section 23 and a pressing rod 22 from top to bottom. A threaded hole matching the threaded section 23 is provided on the rotating sleeve 8. A top groove 21 for partial insertion of the pressing rod 22 is recessed at the upper end of the driving block 20. Sliding grooves 6 with a larger inner portion and a smaller outer portion are circumferentially distributed on the outer ring wall of the matching disk 5. One to four matching pipe fittings 7 are embedded and slidably mounted on the sliding grooves 6. In this embodiment, two matching pipe fittings 7 are embedded in each sliding groove 6. A fixed insert 10 with the same number of matching pipe fittings 7 is protruded from the outer wall of the lower end of the support tube body 1. There is an assembly rod 11 that can pass through the matching pipe fitting 7 and the blocking component 2 in sequence and then be plugged into the fixed insert 10.

[0062] A third elastic member 39 is provided between the supporting tube body 1 and the supporting cone 14 to drive the driving block 20 to rise rapidly after the top pressing assembly is separated from the rotating sleeve 8. Figure 6 as well as Figure 10 As shown, the third elastic member 39 is a spring, and an abutment rod is horizontally arranged in the support tube body 1, which passes through the gap between the clearance groove 141 and the branch connecting rod 19 in sequence. In this embodiment, the abutment rod is the above-mentioned force-bearing rod 17, and the upper end of the third elastic member 39 is fixed to the lower end of the driving block 20 and the lower end is abutted with the upper end of the force-bearing rod 17.

[0063] Installation process,

[0064] 1. Column pre-positioning: Place the support 12 below the support pipe 1 on the upper end surface of the soil layer near the foundation pit, step on the flat head 132 to drive the positioning piece 13 down, and the bottom positioning spike 133 penetrates into the soil layer;

[0065] 2. The support cone 14 is ejected into the soil: In step 1, the support cone 14 tends to move upward relative to the support tube body 1 due to the reaction force of the soil. The operator can hold the gripping ear 9 and lift it upward to further drive the support cone 14 upward to ensure that the elastic reinforcement 31 and the metal shrapnel are compressed into place. Then, the gripping ear 9 is released, and the support cone 14 is ejected with force, and its lower tip is inserted into the soil layer to a certain depth;

[0066] 3. Depth adjustment of the support cone 14: drive the rotating sleeve 8 to engage with the support tube body 1 threadedly and continuously rotate the rotating sleeve 8 until it moves downward to the maximum engagement stroke. At this time, the support cone 14 descends to the maximum stroke;

[0067] 4. Synchronous driving of sealing and anti-slip limit: Insert the pressing rod 22 of the pressing assembly through the threaded hole of the rotating sleeve 8 and into the top groove 21. While holding the driving handle 4, press the driving handle 4 downward. The pressing rod 22 presses the driving block 20 downward, thereby driving the piston driving assembly downward. During this process, the airbag layer 26 expands and the limit block gradually extends outward. When the threaded section 23 is threadedly engaged with the threaded hole, the limit pressing rod 22 is raised and lowered relative to the rotating sleeve 8. At this time, the limit member 15 remains extended and the airbag layer 26 remains expanded.

[0068] 5. Installation of the blocking component 2: Vertically penetrating sockets are provided on both sides of the blocking component 2. The assembly rod 11 is sequentially passed through the matching pipe 7 and the sockets and then plugged into the fixed insert pipe 10.

[0069] Disassembly process:

[0070] 1. Removing the pressing assembly: Rotate the driving handle 4 in the opposite direction until the threaded section 23 is released from the rotating sleeve 8. Under the action of the third elastic member 39, the driving block 20 rises and pushes the pressing rod 22 upward. The pressing assembly can be removed by simply pulling out the pressing rod 22. At this time, the airbag layer 26 and the limit member 15 automatically retract.

[0071] 2. Remove the blocking component 2: Pull out the assembly rod 11 and directly remove the blocking component 2;

[0072] 3. Remove the support tube body 1: Grab the gripping ears 9 and pull upwards to remove the support tube body 1 and the inner support cone 14 at the same time.

[0073] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A construction edge protection mechanism, comprising a plurality of columns and a blocking member (2) disposed between two adjacent columns, characterized in that: The columns include: Support tube body(1); The ejection support assembly comprises a support cone (14) located in a support tube body (1) and having its tip facing downwards, the upper end of the support cone (14) being located outside the upper end of the support tube body (1), an elastic driving component being provided between the support tube body (1) and the support cone (14), and the tip of the support cone (14) being ejected from the lower end of the support tube body (1) by a certain stroke after the elastic driving component is compressed by the support cone (14); A depth adjustment locking mechanism is provided between the upper end of the support cone tube (14) and the upper end of the support tube body (1), limiting the maximum ejection stroke of the support cone tube (14) and further deepening the penetration depth of the support cone tube (14) after the support cone tube (14) is ejected, and limiting the movement of the support cone tube (14) relative to the support tube body (1) after adjustment; An anti-slip limit assembly comprises a sealing and telescopically arranged side wall of a support cone (14) and a plurality of groups of limit members (15) arranged longitudinally along the side wall, the limit members (15) being located on both sides of the support cone (14) and arranged in a cross-distributed manner, the limit members (15) being arranged with their tips facing outward and being able to be completely received in the support tube body (1) or partially extended out of the support tube body (1), and a first elastic member (43) being arranged on the inner wall of the support cone (14) for driving the limit members (15) to be in a retracted state; The sealing assembly comprises an airbag layer (26) circumferentially arranged on the outer ring wall of the support cone (14) and capable of expansion or contraction. When the support cone (14) is extended to the maximum stroke that can be achieved by depth adjustment, the airbag layer (26) is still located between the support cone (14) and the support tube and seals the fitting gap between the two after expansion. The synchronous driving mechanism can synchronously drive the limiting member (15) to extend and the airbag layer (26) to expand, or synchronously drive the limiting member (15) to retract and the airbag layer (26) to contract.

2. A construction edge protection mechanism according to claim 1, characterized in that: The elastic driving component comprises a fixing rod (16) fixedly arranged horizontally in the supporting cone tube (14) and an elastic rib (31) fixedly arranged horizontally in the supporting tube body (1); a symmetrical downwardly extending paving groove (141) is provided at the upper end of the supporting cone tube (14) in a direction perpendicular to the fixing rod (16); and the elastic rib (31) is vertically distributed above the fixing rod (16) and is penetrated and matched with the paving groove (141).

3. A construction edge protection mechanism according to claim 2, characterized in that: A compression drive component is provided between the elastic rib (31) and the support tube body (1) for further increasing the ejection driving force when the support cone tube (14) is ejected. The compression drive component comprises a sleeve (32) which is interference-fitted on the middle part of the elastic rib (31), a metal spring piece provided on the sleeve (32), and a force-bearing rod (17) which is provided on the inner wall of the support tube body (1) above the metal spring piece and interpenetrates with the clearance groove (141). A horizontal abutment piece (33) is provided at one end of the metal spring piece away from the sleeve (32). The abutment piece (33) rises a certain distance and then abuts and cooperates with the force-bearing rod (17).

4. A construction edge protection mechanism according to claim 3, characterized in that: The metal spring piece comprises two arc-shaped spring pieces (34) with their middle parts away from each other, the two ends of the arc-shaped spring piece (34) are respectively fixedly connected to the sleeve (32) and the abutting piece (33), and a second elastic member (35) with its two ends fixed to the sleeve (32) and the abutting piece (33) is provided between the arc-shaped spring piece (34); the lower end of the sleeve (32) is fixed with an arc-shaped guide member (36) with an opening downward for driving the matching position of the fixing rod (16) and the elastic rib (31) to be located at the center of the elastic rib (31).

5. A construction edge protection mechanism according to claim 2, characterized in that: The depth adjustment locking mechanism comprises an external thread (101) provided on the outer wall of the upper end of the support tube body (1) and a rotating sleeve (8) with an internal thread. The upper end of the supporting cone tube (14) is rotatably connected to the bottom of the rotating sleeve (8). Grabbing ears (9) are provided on both sides of the rotating sleeve (8) for driving the rotating sleeve (8) to rotate.

6. A construction edge protection mechanism according to claim 5, characterized in that: The synchronous driving mechanism comprises a piston driving assembly located below and sealed with the inner wall of the support cone tube (14), a branch connecting rod (19) located above the piston driving assembly and staggered with the ejection support assembly, and a driving block (20) located above the supporting connecting rod and vertically guided with the support tube body (1). A pressing assembly is provided on the rotating sleeve (8) after being plugged with the pressing driving block (20) at a certain distance and threadedly engaged with the rotating sleeve (8). The piston driving assembly comprises a piston block (24), a rod body (25) at one end of the piston block (24) away from the branch connecting rod (19), and a driving member (40) located below the rod body (25) for driving the limit member (15) to extend. A matching ring (28) is provided on the inner wall of the support cone tube (14) and sealed with the rod body (25). An air hole (27) communicating with the airbag layer (26) is provided on the inner wall of the support cone tube (14) between the piston block (24) and the matching ring (28).

7. A construction edge protection mechanism according to claim 6, characterized in that: The two sides of the driving member (40) facing the limiting member (15) are vertical matching surfaces, the bottom of the driving member (40) is set with the tip pointing downward and the two sides are symmetrically distributed abutting inclined surfaces (41), and the side of the limiting member (15) close to the first elastic member (43) is set as a matching inclined surface (42) that matches the abutting inclined surface (41).

8. A construction edge protection mechanism according to claim 7, characterized in that: A third elastic member (39) is provided between the support tube body (1) and the support cone tube (14) for driving the driving block (20) to rise rapidly when the top pressure assembly is separated from the rotating sleeve (8). An abutment rod is horizontally provided in the support tube body (1) and sequentially passes through the clearance groove and the gap between the branch connecting rod (19). The upper end of the third elastic member (39) is fixed to the lower end of the driving block (20), and the lower end abuts and cooperates with the upper end of the abutment rod.

9. A construction edge protection mechanism according to claim 8, characterized in that: The pressing assembly comprises a driving handle (4), a matching disk (5), a threaded section (23) and a pressing rod (22) from top to bottom. A threaded hole matching the threaded section (23) is provided on the rotating sleeve (8). A top groove (21) for partially inserting the pressing rod (22) is recessed on the upper end of the driving block (20). Sliding grooves (6) with a larger inner portion and a smaller outer portion are distributed circumferentially on the outer ring wall of the matching disk (5). One to four matching pipes (7) are embedded and slidably mounted on the sliding grooves (6). Fixed inserts (10) with the same number as the matching pipes (7) are protruded on the outer wall of the lower end of the supporting tube body (1). There is an assembly rod (11) which can pass through the matching pipe (7) and the blocking component (2) in sequence and then be plugged into and matched with the fixed inserts (10).

10. The construction edge protection mechanism according to claim 1, characterized in that: A pre-positioning mechanism is provided at the lower end of the outer ring wall of the support tube body (1), the pre-positioning mechanism comprising a support (12) horizontally extending outward from the bottom of the outer ring wall of the support tube body (1), and a plurality of positioning members (13) distributed circumferentially around the support tube body (1) on the support (12). The positioning member (13) comprises a positioning column (131) plugged into and engaged with the support (12), the upper end of the positioning column (131) being a horizontally extending stepped flat head (132), and the lower end of the positioning column (131) being a positioning cone thorn (133) with a downwardly pointed tip.

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