Detachable constructional engineering protective net

Abstract

The invention belongs to the technical field of construction, and discloses a detachable constructional engineering protective net which comprises a first protective net body and a second protective net body, a rectangular frame is fixedly mounted on one side of the first protective net body, an inverted-T-shaped frame is fixedly mounted on one side of the second protective net body, and two symmetrically-distributed first extension plates are integrally fixed to one side of the rectangular frame. Two symmetrically-distributed second extension plates are integrally fixed to the surface of the rectangular frame, rectangular clamping grooves distributed at equal intervals and strip-shaped sliding grooves communicating with the rectangular clamping grooves are formed in the two first extension plates and the two second extension plates correspondingly, and the ends, away from the rectangular clamping grooves, of the strip-shaped sliding grooves are of open structures; and inclined plane clamping blocks are arranged on the two opposite sides of the inverted-T-shaped frame, the two inclined plane clamping blocks are symmetrically distributed and matched with the rectangular clamping groove, a mounting groove is formed in the inverted-T-shaped frame, and a lifting mechanism used for driving the two inclined plane clamping blocks to move up and down and a lock catch assembly used for driving the two inclined plane clamping blocks to move horizontally are arranged in the mounting groove.

Description

Technical Field

[0001] The invention belongs to the technical field of construction tools, in particular to a detachable construction engineering protective net. Background Art

[0002] Construction projects refer to the engineering entities formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. "Buildings" refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that can meet people's needs for production, residence, study, and public activities.

[0003] A protective net is a net installed under or on the side of a building during construction to prevent accidents caused by falling people or objects.

[0004] The existing protective nets are complicated to install and disassemble, and often require external tools to disassemble or install them. For example, some protective nets are screwed together with bolts, which require external tools to unscrew the bolts, or some two protective nets are directly welded together, making them difficult to disassemble later. Summary of the invention

[0005] In order to solve the problem in the above background technology that the installation and disassembly process is complicated, the present invention provides a detachable construction engineering protection net.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a detachable construction engineering protective net, comprising a protective net 1 and a protective net 2, wherein the protective net 1 is fixedly installed with a rectangular frame on one side close to the protective net 2, and the protective net 2 is fixedly installed with a convex-shaped frame on one side close to the protective net 1, and the rectangular frame is integrally fixed with two symmetrically distributed extension plates 1 on one side away from the protective net 1, and two symmetrically distributed extension plates 2 are integrally fixed on the surface of the rectangular frame, and the two extension plates 1 and the two extension plates 2 are both provided with equidistantly distributed rectangular card slots and strip slides interconnected with the rectangular card slots, and the end of the strip slide away from the rectangular card slot is an open structure, and inclined surface blocks are arranged on opposite sides of the convex-shaped frame, and the two inclined surface blocks are symmetrically distributed, and the inclined surface blocks are adapted to the rectangular card slot, and an installation slot is arranged in the convex-shaped frame, and a lifting mechanism for driving the two inclined surface blocks to move up and down, and a locking assembly for driving the two inclined surface blocks to move horizontally are arranged in the installation slot.

[0007] Preferably, the groove between the two extension plates 1 and the convex-shaped frame are adapted to each other, and the groove formed between the two extension plates 2 and the convex-shaped frame are adapted to each other, and the lifting mechanism includes two vertical plates vertically fixed to the bottom surface of the inner wall of the mounting groove and symmetrically distributed, and the two vertical plates are penetrated by an internal spline shaft rotatably connected thereto, and the internal spline shaft is penetrated by an external spline shaft adapted thereto, and one end of the external spline shaft extends to the outside of the mounting groove and is fixedly mounted with a handle.

[0008] Preferably, a support plate is fixedly connected between the inner walls on both sides of the mounting groove, a threaded rod is rotatably connected between the support plate and the top surface of the inner wall of the mounting groove, a bevel gear 1 coaxially fixed with the threaded rod is rotatably connected to the lower surface of the support plate, a bevel gear 2 fixedly connected to the internal spline shaft is sleeved on the internal spline shaft, and the bevel gear 2 is meshed with the bevel gear 1.

[0009] Preferably, the threaded rod is sleeved with an internal threaded sleeve threadedly connected to it, and the two sides of the internal threaded sleeve that are far away from each other are fixedly connected with rectangular frames, and the side walls of the mounting groove are provided with limiting slide grooves that are interconnected with the outside and are used for the rectangular frame to move up and down, and the two rectangular frames are telescopically plugged with plug rods, and the two inclined blocks are respectively fixed to one end of the two plug rods located outside the rectangular frames, the plug rods are slidably adapted to the strip slide grooves, and the extension plate one and the extension plate two are provided with U-shaped grooves adapted to the external spline shaft.

[0010] Preferably, the locking assembly includes a partition fixed in a rectangular frame, a sleeve is telescopically inserted on the partition, an annular plate 1 and an annular plate 2 are integrally fixed at both ends of the sleeve, and a spring 1 mounted on the sleeve is fixedly connected between the annular plate 2 and the partition.

[0011] Preferably, the insertion rod passes through the sleeve and is telescopically connected to the sleeve, the surface of the insertion rod is sleeved with a truncated cone-shaped clamping block fixed thereto, a spring 2 sleeved on the insertion rod is fixedly connected between the truncated cone-shaped clamping block and the annular plate 1, and a telescopic clamping rod passes through the bottom wall of the rectangular frame.

[0012] Preferably, a circular plate is sleeved on the clamping rod, and a spring three sleeved on the clamping rod is fixedly connected between the circular plate and the rectangular frame. A push rod is fixedly connected at the edge of the annular plate two, and the push rod extends downward to the outside of the rectangular frame and then bends into an L shape. A strip groove for horizontal sliding of the push rod is provided on the rectangular frame, and a bevel groove is provided at the lower end of the clamping rod, and one end of the push rod located outside the rectangular frame is aligned with the bevel groove.

[0013] Preferably, two symmetrically distributed cross bars are vertically fixed on the push rod, a frame is slidably connected to the top surface of the inner wall of the mounting groove, a bending rod is fixedly connected to the frame, and one end of the bending rod is rotatably connected to the free end of the external spline shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When the protective net 1 and the protective net 2 need to be installed on an uneven terrain, the lower edges of the protective net 1 and the protective net 2 can be placed against the ground, and the two inclined plane cards can be driven to move in the vertical direction through the lifting mechanism, so that the two inclined plane card blocks can be moved to a position that matches the rectangular card slot, effectively improving the overall applicability of the device; By setting the locking assembly, the two inclined card blocks can be inserted into the two extension plates 1, or directly inserted into the rectangular card slots after entering the two extension plates 2, so as to complete the installation of the protection net 1 and the protection net 2; When it is necessary to disassemble the first and second protective nets, the inclined card block can be directly driven to move in the horizontal direction to disengage from the rectangular card slot, so that the locking state between the rectangular frame and the convex-shaped frame is unlocked, and the convex-shaped frame can be directly separated from the rectangular frame, without the need to use external tools to disassemble and assemble the first and second protective nets; The lifting and unlocking of the inclined plane block are controlled by the same driving shaft, which effectively improves the convenience of disassembly and installation of the protective net one and the protective net two. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at D in the middle; Figure 3 It is a schematic diagram of the structure of the present invention in which the convex-shaped frame enters into two extension plates 2; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle; Figure 5 It is a schematic diagram of the internal structure of the installation slot in the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at A in the middle; Figure 7 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 8 It is a structural schematic diagram of the sleeve in the present invention; Fig. 9 It is a schematic diagram of the internal structure of the rectangular frame in the present invention; Fig.10 It is a schematic diagram of the structure of the bevel groove in the present invention; Fig.11 It is a structural schematic diagram of the location of the frame in the present invention; Fig.12 For the present invention Fig.11 Schematic diagram of the enlarged structure at E in the middle; Fig.13 This is a schematic structural diagram of the state in which the convex-shaped frame of the present invention is ready to enter two extension plates.

[0016] In the figure: 11, protective net 1; 12, protective net 2; 13, rectangular frame; 14, convex frame; 15, extension plate 1; 16, extension plate 2; 21, rectangular slot; 22, strip slide; 3, inclined block; 5, installation slot; 61, vertical plate; 62, internal spline shaft; 63, external spline shaft; 64, threaded rod; 65, bevel gear 1; 66, bevel gear 2; 67, support plate; 68, internal thread sleeve; 69 , rectangular frame; 610, limiting slide groove; 611, plug rod; 612, U-shaped groove; 71, partition; 72, sleeve; 73, annular plate one; 74, annular plate two; 75, spring one; 76, truncated cone block; 77, spring two; 78, clamping rod; 79, circular plate; 710, spring three; 711, push rod; 712, strip groove; 713, inclined groove; 714, cross bar; 715, frame; 716, bending rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 3 As shown, the present invention provides a detachable construction engineering protection net, including a protection net 11 and a protection net 12, wherein a rectangular frame 13 is fixedly installed on the side of the protection net 11 close to the protection net 12, and a convex frame 14 is fixedly installed on the side of the protection net 12 close to the protection net 11, and two symmetrically distributed extension plates 15 are integrally fixed on the side of the rectangular frame 13 away from the protection net 11, and a groove between the two extension plates 15 is matched with the convex frame 14, and two symmetrically distributed extension plates 16 are integrally fixed on the surface of the rectangular frame 13, and a groove formed between the two extension plates 16 is matched with the convex frame 14.

[0019] The protruding portion of the convex-shaped frame 14 can enter between the two extension plates 15 , and can also enter between the two extension plates 2 16 .

[0020] like Figure 3 and Figure 4As shown, the two extension plates 15 and the two extension plates 2 16 are provided with equally spaced rectangular slots 21 and strip slides 22 interconnected with the rectangular slots 21 , and the end of the strip slide 22 away from the rectangular slots 21 is an open structure.

[0021] The strip-shaped sliding groove 22 and the rectangular clamping groove 21 form a T-shaped groove body.

[0022] like Figure 4 and Figure 5 As shown, bevel blocks 3 are arranged on opposite sides of the convex-shaped frame 14, the two bevel blocks 3 are symmetrically distributed, and the bevel blocks 3 are adapted to the rectangular slots 21, and a mounting slot 5 is opened in the convex-shaped frame 14, and a lifting mechanism for driving the two bevel blocks 3 to move up and down, and a locking assembly for driving the two bevel blocks 3 to move horizontally are arranged in the mounting slot 5.

[0023] The two inclined surface blocks 3 are located on both sides of the protruding portion of the convex-shaped frame 14 .

[0024] When the protective net 11 and the protective net 2 12 need to be installed on an uneven terrain, the lower edges of the protective net 11 and the protective net 2 12 can be placed against the ground, and the two inclined surface blocks 3 can be driven to move in the vertical direction by the lifting mechanism, so that the two inclined surface blocks 3 can be moved to a position adapted to the rectangular slot 21, which effectively improves the overall applicability of the device; By setting the locking assembly, the two inclined surface blocks 3 can be directly inserted into the rectangular slots 21 after entering the two extension plates 15, or entering the two extension plates 2 16, so as to complete the installation of the protection net 11 and the protection net 2 12; When the protective net 11 and the protective net 2 12 need to be disassembled, the inclined card block 3 can be directly driven to move in the horizontal direction to disengage from the rectangular card slot 21, so that the locking state between the rectangular frame 13 and the convex-shaped frame 14 is unlocked, and the convex-shaped frame 14 can be directly separated from the rectangular frame 13, without using external tools to disassemble and assemble the protective net 11 and the protective net 2 12; Moreover, the lifting and unlocking of the inclined surface block 3 are controlled by the same driving shaft, which effectively improves the convenience of disassembly and installation of the protective net 11 and the protective net 2 12.

[0025] like Figure 5 and Figure 6 As shown, the lifting mechanism includes two vertical plates 61 vertically fixed to the bottom surface of the inner wall of the mounting groove 5 and symmetrically distributed, and the two vertical plates 61 are penetrated by an inner spline shaft 62 rotatably connected thereto, and the inner spline shaft 62 is penetrated by an outer spline shaft 63 adapted thereto, and one end of the outer spline shaft 63 extends to the outside of the mounting groove 5 and is fixedly mounted with a handle.

[0026] The outer spline shaft 63 can move in the horizontal direction without affecting the inner spline shaft 62 , and can also drive the inner spline shaft 62 to rotate.

[0027] like Figure 5 and Figure 6 As shown, a support plate 67 is fixedly connected between the inner walls on both sides of the mounting groove 5, a threaded rod 64 is rotatably connected between the support plate 67 and the top surface of the inner wall of the mounting groove 5, a bevel gear 1 65 coaxially fixed with the threaded rod 64 is rotatably connected to the lower surface of the support plate 67, a bevel gear 2 66 fixedly connected to the inner spline shaft 62 is sleeved, and the bevel gear 2 66 and the bevel gear 1 65 are meshed with each other.

[0028] like Figure 5 , Figure 7 and Fig. 9 As shown, the threaded rod 64 is sleeved with an internal threaded sleeve 68 threadedly connected thereto, and rectangular frames 69 are fixedly connected to the two sides of the internal threaded sleeve 68 away from each other, and a limiting slide groove 610 is opened on the side wall of the mounting groove 5, which is interconnected with the outside and is used for the rectangular frame 69 to move up and down, and the two rectangular frames 69 are telescopically plugged with plug rods 611, and the two inclined surface blocks 3 are respectively fixed to one end of the two plug rods 611 located outside the rectangular frame 69, and the plug rod 611 is slidably adapted to the strip slide groove 22.

[0029] By providing the limiting sliding groove 610 , the two rectangular frames 69 and the internal threaded sleeve 68 can be restricted to move only in the vertical direction and cannot rotate along with the threaded rod 64 .

[0030] like Figure 4 As shown, the extension plate 1 15 and the extension plate 2 16 are both provided with a U-shaped groove 612 adapted to the external spline shaft 63 .

[0031] like Figure 8 and Fig. 9 As shown, the lock assembly includes a partition 71 fixed in a rectangular frame 69, a sleeve 72 is telescopically inserted on the partition 71, an annular plate 1 73 and an annular plate 2 74 are integrally fixed at both ends of the sleeve 72, and a spring 1 75 mounted on the sleeve 72 is fixedly connected between the annular plate 2 74 and the partition 71.

[0032] In the initial state, the spring 1 75 can give a thrust to the annular plate 2 74 , so that the annular plate 1 73 will press against the surface of the partition plate 71 .

[0033] like Fig. 9 As shown, the insertion rod 611 passes through the sleeve 72 and is telescopically connected to the sleeve 72. A truncated cone-shaped clamping block 76 fixed to the surface of the insertion rod 611 is sleeved thereon. A spring 2 77 sleeved on the insertion rod 611 is fixedly connected between the truncated cone-shaped clamping block 76 and the annular plate 1 73. A telescopic clamping rod 78 passes through the bottom wall of the rectangular frame 69.

[0034] The truncated cone-shaped block 76 abuts against the clamping rod 78 , and the clamping rod 78 can restrict the truncated cone-shaped block 76 and the insertion rod 611 , so that they cannot move toward the side close to the inclined surface block 3 .

[0035] like Fig. 9 and Fig.10 As shown, a circular plate 79 is sleeved on the clamping rod 78, and a spring three 710 sleeved on the clamping rod 78 is fixedly connected between the circular plate 79 and the rectangular frame 69. A push rod 711 is fixedly connected to the edge of the annular plate 74. The push rod 711 extends downward to the outside of the rectangular frame 69 and then bends into an L shape. A strip groove 712 for horizontal sliding of the push rod 711 is provided on the rectangular frame 69. A bevel groove 713 is provided at the lower end of the clamping rod 78, and one end of the push rod 711 located outside the rectangular frame 69 is aligned with the bevel groove 713.

[0036] When the push rod 711 moves toward the side close to the locking rod 78, its end can enter the inclined groove 713 and rest on the inclined surface of the inclined groove 713, pushing the locking rod 78 to move downward, so that the locking rod 78 can be separated from the truncated cone-shaped block 76, thereby releasing the locked state of the insertion rod 611 and the truncated cone-shaped block 76.

[0037] like Fig.11 and Fig.12 As shown, two symmetrically distributed cross bars 714 are vertically fixed on the push rod 711, and a frame 715 is slidably connected to the top surface of the inner wall of the mounting groove 5. A bending rod 716 is fixedly connected to the frame 715, and one end of the bending rod 716 is rotatably connected to the free end of the external spline shaft 63.

[0038] Specifically, the frame 715 is formed by integrating three rectangular frames, two of which are slidably connected to the top surface of the inner wall of the installation groove 5, and the frame 715 is located between the four cross bars 714.

[0039] The working principle and use process of the present invention: When the protective net 11 and the protective net 2 12 need to be installed, align the convex frame 14 with the two extension plates 15, or align with the two extension plates 2 16; When the convex frame 14 enters the two extension plates 15, the protection net 11 and the protection net 2 12 will be installed in a flat state. When the convex frame 14 enters the two extension plates 16, the protection net 11 and the protection net 2 12 will be installed in a vertical state. This can be determined according to construction requirements. When the convex frame 14 enters between the two extension plates 15, the inclined surfaces of the two inclined surface blocks 3 on the outer side of the convex frame 14 will first abut against the edge of the extension plate 15. Fig.13As shown, as the convex-shaped frame 14 moves toward the extension plate 15, the inclined surface block 3 is restricted to move toward the rectangular frame 69, so that the two inclined surface blocks 3 can follow the convex-shaped frame 14 into the two extension plates 15; When the inclined surface block 3 moves into the rectangular frame 69, it can drive the insertion rod 611 to move accordingly, and the insertion rod 611 can drive the truncated cone block 76 sleeved on its surface to move away from the clamping rod 78, causing the second spring 77 to be squeezed; When the inclined surface block 3 moves to the strip-shaped slide groove 22, the restriction is removed, and the second spring 77 drives the truncated cone-shaped block 76, the insertion rod 611 and the inclined surface block 3 to move away from the rectangular frame 69 and return to the original position through the rebound force, so that the inclined surface block 3 enters the rectangular slot 21 and is stuck, thereby installing the first protection net 11 and the second protection net 12 together; Before installing the protective net 11 and the protective net 2 12, if the terrain is not flat enough, the position of the bevel block 3 can be adjusted by rotating the outer spline shaft 63. By manually rotating the outer spline shaft 63, the outer spline shaft 63 can drive the inner spline shaft 62 sleeved on its surface to rotate accordingly, and the inner spline shaft 62 can drive the bevel gear 2 66 to rotate accordingly, and the bevel gear 2 66 can drive the bevel gear 1 65 meshing with it to rotate accordingly, and the bevel gear 1 65 can drive the threaded rod 64 coaxially fixed thereto to rotate accordingly, and the threaded rod 64 can drive the internal threaded sleeve 68 to move in the vertical direction, and the internal threaded sleeve 68 can drive the bevel block 3 to move in the vertical direction to the preset position through the insertion rod 611, so as to ensure that the bevel block 3 can be inserted into one of the rectangular slots 21 even when the terrain is uneven, and the installation of the protective net 11 and the protective net 2 12 is completed; When the locking cam 714 is in the state of being lifted up, the locking cam 712 is in the state of being lifted up and the lock cam 713 is in the state of being lifted up, so that the locking cam 714 can be locked to the locking cam 713 by the locking cam 714a. Since the insertion rod 611 is slidably matched with the strip-shaped slide groove 22, the convex-shaped frame 14 can directly come out from between the two extension plates 15; When the disassembly work is completed, the inclined surface block 3 can be manually pushed to move into the rectangular frame 69, and the rectangular frame 69 can drive the truncated cone block 76 to move accordingly, so that the inclined surface of the truncated cone block 76 can push the clamping rod 78 to move downward. When the rectangular frame 69 moves to the other side of the clamping rod 78, the spring three 710 can push the clamping rod 78 to move upward, so that the truncated cone block 76 is clamped by the clamping rod 78 again, so as to facilitate the next installation and use.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable construction engineering protection net, comprising a protection net 1 (11) and a protection net 2 (12), characterized in that: A rectangular frame (13) is fixedly mounted on one side of the protective net 1 (11), a convex frame (14) is fixedly mounted on one side of the protective net 2 (12), two symmetrically distributed extension plates 1 (15) are integrally fixed on one side of the rectangular frame (13), two symmetrically distributed extension plates 2 (16) are integrally fixed on the surface of the rectangular frame (13), and the two extension plates 1 (15) and the two extension plates 2 (16) are both provided with rectangular slots (21) distributed at equal intervals, and strips interconnected with the rectangular slots (21) are provided. The slide groove (22) is an open structure at one end of the strip-shaped slide groove (22) away from the rectangular card slot (21); inclined card blocks (3) are arranged on opposite sides of the convex-shaped frame (14); the two inclined card blocks (3) are symmetrically distributed, and the inclined card blocks (3) are adapted to the rectangular card slot (21); a mounting groove (5) is provided in the convex-shaped frame (14); a lifting mechanism for driving the two inclined card blocks (3) to move up and down, and a locking assembly for driving the two inclined card blocks (3) to move horizontally are arranged in the mounting groove (5).

2. The detachable construction engineering protection net according to claim 1 is characterized in that: The groove between the two extension plates (15) is matched with the convex-shaped frame (14), and the groove formed between the two extension plates (16) is matched with the convex-shaped frame (14). The lifting mechanism comprises two vertical plates (61) vertically fixed to the bottom surface of the inner wall of the installation groove (5) and symmetrically distributed. The two vertical plates (61) are penetrated by an inner spline shaft (62) rotatably connected thereto, and the inner spline shaft (62) is penetrated by an outer spline shaft (63) matched thereto, and one end of the outer spline shaft (63) extends to the outside of the installation groove (5) and is fixedly mounted with a handle.

3. The detachable construction engineering protection net according to claim 2 is characterized in that: A support plate (67) is fixedly connected between the inner walls of the mounting groove (5) on both sides opposite to each other; a threaded rod (64) is rotatably connected between the support plate (67) and the top surface of the inner wall of the mounting groove (5); a bevel gear 1 (65) coaxially fixed to the threaded rod (64) is rotatably connected to the lower surface of the support plate (67); a bevel gear 2 (66) fixedly connected to the internal spline shaft (62) is sleeved on the internal spline shaft (62); the bevel gear 2 (66) and the bevel gear 1 (65) are meshed with each other.

4. The detachable construction engineering protection net according to claim 3 is characterized in that: The threaded rod (64) is sleeved with an internal threaded sleeve (68) threadedly connected thereto, and two sides of the internal threaded sleeve (68) away from each other are fixedly connected with rectangular frames (69), and the side wall of the mounting groove (5) is provided with a limiting slide groove (610) which is interconnected with the outside and is used for the rectangular frame (69) to move up and down, and the two rectangular frames (69) are telescopically plugged with plug rods (611), and the two inclined surface blocks (3) are respectively fixed to one end of the two plug rods (611) located outside the rectangular frames (69), and the plug rods (611) are slidably matched with the strip slide groove (22), and the extension plate 1 (15) and the extension plate 2 (16) are both provided with a U-shaped groove (612) matched with the external spline shaft (63).

5. The detachable construction engineering protection net according to claim 4 is characterized in that: The lock assembly comprises a partition (71) fixed in a rectangular frame (69), a sleeve (72) being telescopically plugged into the partition (71), an annular plate 1 (73) and an annular plate 2 (74) being integrally fixed at both ends of the sleeve (72), and a spring 1 (75) sleeved on the sleeve (72) being fixedly connected between the annular plate 2 (74) and the partition (71).

6. The detachable construction engineering protection net according to claim 5 is characterized in that: The insertion rod (611) passes through the sleeve (72) and is telescopically connected to the sleeve (72); a truncated cone-shaped clamping block (76) fixed thereto is sleeved on the surface of the insertion rod (611); a second spring (77) sleeved on the insertion rod (611) is fixedly connected between the truncated cone-shaped clamping block (76) and the first annular plate (73); and a telescopically movable clamping rod (78) passes through the bottom wall of the rectangular frame (69).

7. The detachable construction engineering protection net according to claim 6 is characterized in that: A circular plate (79) is sleeved on the clamping rod (78), and a spring three (710) sleeved on the clamping rod (78) is fixedly connected between the circular plate (79) and the rectangular frame (69). A push rod (711) is fixedly connected at the edge of the annular plate two (74), and the push rod (711) extends downward to the outside of the rectangular frame (69) and then bends into an L shape. The rectangular frame (69) is provided with a strip groove (712) for the push rod (711) to slide horizontally. The lower end of the clamping rod (78) is provided with an inclined groove (713), and one end of the push rod (711) located outside the rectangular frame (69) is aligned with the inclined groove (713).

8. The detachable construction engineering protection net according to claim 7 is characterized in that: Two symmetrically distributed cross bars (714) are vertically fixed to the push rod (711); a frame (715) is slidably connected to the top surface of the inner wall of the mounting groove (5); a bending rod (716) is fixedly connected to the frame (715); one end of the bending rod (716) is rotatably connected to the free end of the external spline shaft (63).

Images