A safety frame for construction work and a method of using the same

Abstract

The application relates to the field of safety frames for construction, in particular to a safety frame for building construction, which comprises four stand columns, the side walls of the two stand columns on the right side are each provided with a movable groove, a main fixing rod is slidably connected between the two movable grooves, a slave fixing rod is fixedly connected between the two stand columns on the left side, an adjusting frame is movably connected between the two stand columns in the horizontal direction, a supporting plate is arranged between the main fixing rod and the slave fixing rod, and a mounting mechanism is movably connected between the lower part of the supporting plate and the main fixing rod and the slave fixing rod. The safety frame for building construction is composed of a mounting mechanism, an adjusting mechanism and a cleaning mechanism; when the distance between the two stand columns on the left and right sides is controlled by rotating the adjusting rod with the connecting block and the supporting plate upward, and under the cooperation of the rack plate and the gear ring, the supporting plate is automatically turned over on the stand column and is overlapped on the surface of the slave fixing rod, automatic paving is realized, and the operation personnel can avoid high-altitude installation.

Description

Technical Field

[0001] This invention relates to the field of safety frames for construction, specifically a safety frame for building construction and its method of use. Background Technology

[0002] Construction safety frames are a common type of safety protection device used in construction, typically consisting of support columns on both sides, support plates, and support legs.

[0003] An existing patent (publication number: CN111622518A) discloses a construction safety frame for structural columns at building edges, including columns, and three parallel fixing rods and a first set of rings arranged horizontally at equal intervals between two columns on the same side. In the process of implementing this solution, the inventors discovered the following problems in the existing technology that have not been adequately addressed: 1. Because a support plate needs to be erected on the upper part of the safety frame to facilitate work for construction personnel, the support plate of this construction safety frame adopts a space frame structure. However, during the erection of this space frame, construction personnel need to install it at a high position on the safety frame, which poses a certain safety hazard; 2. Anti-slip nails are usually installed on the surface of the space frame in building construction to improve work safety. However, due to long-term work on the space frame by construction personnel, the anti-slip nails will gradually wear down after being subjected to friction, affecting the anti-slip effect. Summary of the Invention

[0004] The purpose of this invention is to provide a safety frame for construction and its usage method to solve the problems mentioned in the background art: 1. Some existing construction safety frames require high-altitude installation work when installing support plates, which poses safety hazards; 2. The anti-slip nails on the surface of the upper support plate of some existing construction safety frames become worn, affecting the anti-slip effect. To achieve the above objectives, this invention provides the following technical solution: a safety frame for construction, including four columns. The side walls of the two right-hand columns are provided with movable grooves, and a main fixing rod is slidably connected between the two movable grooves. A secondary fixing rod is fixedly connected between the two left-hand columns, and an adjusting frame is movably connected between two horizontally aligned columns.

[0005] A support plate is provided between the main fixed rod and the secondary fixed rod. An installation mechanism is movably connected between the lower part of the support plate and the main fixed rod and the secondary fixed rod. An adjustment mechanism is movably connected between the inside of the support plate and the two columns on the right side.

[0006] A cleaning mechanism that works in conjunction with a support plate is movably connected between the upper parts of the two columns on the right.

[0007] Preferably, the installation mechanism includes two slides, which are symmetrically arranged at the bottom of the support plate. A compression spring is slidably connected inside the slide, and a main locking block is fixedly connected to the right end of the compression spring. The side wall of the main locking block is fixedly connected to the inner wall of the slide.

[0008] The left end of the compression spring is connected to a follower block that cooperates with the follower rod. The side wall of the follower block is slidably connected to the inside of the slide groove. The middle part of the inner wall of the slide groove is symmetrically fixed with spring pieces that cooperate with the follower block.

[0009] Both sides of the main fixing rod are rotatably connected to connecting blocks. The upper parts of the two connecting blocks are respectively movably installed on the lower parts of the two main clamping blocks. The opposite sides of the two connecting blocks are fixedly connected to toothed rings. Both sides of the main fixing rod are fixedly connected to rack plates. The two rack plates correspond one-to-one with the two toothed rings.

[0010] A push plate is slidably connected between the two movable slots. A pad is fixedly connected between the upper and lower parts of the two right-side columns. An adjusting screw is threaded between the two pads. The left side of the push plate is threaded to the upper part of the adjusting screw.

[0011] Preferably, the bottom of the card block is arc-shaped, and the card block has arc-shaped chamfers on all four sides near the inner side of the slide groove.

[0012] Preferably, the lower part of the main clamping block is rotatably connected to a bolt, one end of which passes through the main clamping block and is threadedly connected to the upper part of the adjacent connecting block.

[0013] Preferably, the adjustment mechanism includes an adjustment groove, which is opened inside the support plate. Five anti-slip nail plates are equidistantly connected inside the adjustment groove. A compression spring is fixedly connected between the bottom of the anti-slip nail plate and the inner bottom surface of the adjustment groove. The top of the anti-slip nail plate extends outside the support plate. A main tooth plate is fixedly connected to the side wall of the anti-slip nail plate.

[0014] A spring rod is symmetrically fixedly connected to the left side of the inner wall of the adjustment groove. A crossbar is fixedly connected to one end of the spring rod. Five toothed plates are fixedly connected at equal intervals on the surface of the crossbar. The five toothed plates correspond one-to-one with the five main toothed plates on the same side.

[0015] T-shaped sleeves are symmetrically slidably connected to the right side of the inner wall of the adjustment groove. The two T-shaped sleeves correspond one-to-one with the two crossbars. One end of the T-shaped sleeve extends to the outside of the support plate. An inclined groove is opened in the middle of the T-shaped sleeve. The end of the crossbar away from the spring rod is slidably connected to the inside of the adjacent inclined groove. A trapezoidal block that cooperates with the T-shaped sleeve is fixedly connected to the side wall of the upper part of the column.

[0016] Guide posts are fixedly connected to both sides of the crossbar, and T-shaped adjustment posts are symmetrically rotatably connected to both sides of the inner wall of the adjustment groove. The four guide posts correspond one-to-one with the four T-shaped adjustment posts. A spiral groove is opened in the middle of the T-shaped adjustment post, and one end of the guide post is slidably connected to the inside of the adjacent spiral groove.

[0017] An L-shaped baffle is fixedly sleeved on the side of the T-shaped adjusting column away from the spiral groove, and the surface of the L-shaped baffle overlaps with the top of the anti-slip nail plate.

[0018] Preferably, a guide pin is fixedly connected to one end of the crossbar near the T-shaped sleeve, and the crossbar is slidably connected to the inside of the inclined groove through the guide pin;

[0019] A short spring is fixedly connected between the side wall of the T-shaped sleeve and the inner wall of the adjusting groove.

[0020] Preferably, both ends of the T-shaped adjusting column are rotatably connected to mounting blocks, and the sidewalls of the mounting blocks are fixedly connected to the inner wall of the adjusting groove.

[0021] Preferably, the cleaning mechanism includes two telescopic rods, which are respectively fixedly connected to the upper part of the two right-side columns. A U-shaped bracket is fixedly connected between the two telescopic rods, and a scraper is fixedly connected to the middle of the U-shaped bracket.

[0022] A method for using a safety frame in construction includes the following steps:

[0023] S1. When using this safety frame for construction, by rotating the adjusting screw, the pad on the adjusting screw, along with the connecting block, rises to the limit position inside the movable groove with the main fixed rod. Then, by controlling the adjusting frame to move the left and right columns in opposite directions, the distance between the left and right columns is adjusted. During the movement of the left column, the rack plate on the fixed rod and the top surface of the toothed ring on the main fixed rod engage between the two left columns, causing the toothed ring, along with the connecting block and the support plate, to rotate counterclockwise on the surface of the main fixed rod. As the support plate flips, the locking block at the bottom of the support plate engages with the top of the fixed rod for installation.

[0024] S2. When the safety frame is not in use and is being stored, the adjustment frame is controlled to move the columns on the left and right sides relative to each other. At this time, during the engagement of the rack plate and the toothed ring, the toothed ring rotates 90 degrees clockwise with the connecting block and the support plate. At this time, the T-shaped sleeve on the side wall of the support plate releases the pressure between itself and the trapezoidal block on the upper part of the column, causing one end of the T-shaped sleeve to move outward from the support plate. Then, the T-shaped sleeve pulls the crossbar to the right through the inclined groove, causing the guide post on the crossbar to slide along the spiral groove trajectory on the side wall of the T-shaped adjustment post. At this time, the T-shaped adjustment post rotates 90 degrees with the L-shaped baffle and overlaps the top position of the anti-slip nail. At the same time, as the crossbar moves to the left, the toothed plate on the crossbar releases the insertion of itself from the main toothed plate. The compression spring presses the top plate of the anti-slip nail plate into contact with the surface of the L-shaped baffle, compensating for the exposed length.

[0025] S3. When the support plate is flipped counterclockwise from the direction of the fixed rod, the protruding part of the T-shaped sleeve flips to the position of the trapezoidal block on the side wall of the column. At this time, the T-shaped sleeve is pressed into the inside of the adjustment groove, causing the crossbar to move to the left inside the adjustment groove. During the translation of the toothed plate on the crossbar, it is inserted into the tooth position on the side wall of the main toothed plate, which restricts the movement of the anti-slip nail plate. At the same time, the guide column and the spiral groove on the side wall of the T-shaped adjustment column slide together, causing the T-shaped adjustment column to rotate 90 degrees in the opposite direction with the L-shaped baffle. The L-shaped baffle is released from contact with the anti-slip nail plate. In this way, after each use and storage of the support plate, the anti-slip nail plate will contact the flipped L-shaped baffle once, compensating for the wear of the anti-slip nail plate.

[0026] S4. Finally, when the safety frame is not in use, flip the support plate sidewall to the vertical position and contact the scraper surface. Rotate the adjusting screw to move the pad plate down. Under the action of gravity, the connecting block, along with the main fixing rod and the support plate, slides down inside the movable groove. The moving support plate sidewall scrapes the surface with the cooperation of the telescopic rod and the scraper.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] In this invention, by adjusting the screw, support plate, and rack plate, the connecting block and support plate are moved up by rotating the adjusting rod. When the distance between the left and right columns is controlled by the adjusting frame, the support plate automatically flips on the column and overlaps the surface of the fixed rod under the cooperation of the rack plate and the toothed ring, realizing automatic installation. This avoids the need for operators to install at heights and improves the safety performance of the safety frame.

[0029] In this invention, the cooperation of components such as the anti-slip nail plate, L-shaped baffle, and T-shaped adjusting column enables the T-shaped sleeve to release its contact with the trapezoidal block when the support plate is flipped to a vertical position during storage. At this time, the crossbar moves to the left, allowing the guide post on the crossbar to slide in conjunction with the spiral groove on the side wall of the T-shaped adjusting column. The L-shaped baffle rotates 90 degrees with the T-shaped adjusting column, causing the anti-slip nail plate, which is now unrestricted, to be pressed against the surface of the L-shaped baffle by the compression spring, compensating for the exposed length. When the support plate is flipped to lay flat, the T-shaped adjusting column, along with the L-shaped baffle, reverses to release the restriction on the anti-slip nail plate. Thus, each time the support plate is stored, the anti-slip nail plate that has been worn can be automatically compensated, improving the anti-slip effect of the support plate during use.

[0030] In this invention, by using components such as a support plate, a scraper, and a telescopic rod in combination, when the safety frame is not in use, the side wall of the support plate, which is flipped to a vertical position, contacts the surface of the scraper. Rotating the adjusting screw moves the pad down, and under the action of gravity, the connecting block, along with the main fixing rod and the support plate, slides downward inside the movable groove. The side wall of the downward-moving support plate scrapes the surface with the cooperation of the telescopic rod and the scraper. Attached Figure Description

[0031] Figure 1 This is a top view of a portion of the column and support plate of the present invention;

[0032] Figure 2 This is a partial sectional view of the column and support plate of the present invention;

[0033] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0034] Figure 4 This is a top sectional view showing the position of the support plate and the slide groove in this invention;

[0035] Figure 5 This is a right view of a portion of the column and support plate of the present invention;

[0036] Figure 6 For the present invention Figure 5 Enlarged view of the structure at point B;

[0037] Figure 7 This is a top sectional view showing the positions of the support plate and the adjustment groove of the present invention;

[0038] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point C;

[0039] Figure 9 This is a cross-sectional view showing the positions of the support plate and the adjustment groove of the present invention.

[0040] Figure 10 For the present invention Figure 9 Enlarged view of the structure at point D;

[0041] Figure 11 This is a top view of a portion of the column and trapezoidal block of the present invention;

[0042] Figure 12 This is a perspective view of the position of the T-shaped adjusting column and the spiral groove of the present invention;

[0043] Figure 13 This is a side sectional view showing the positions of the L-shaped baffle and the support plate of the present invention.

[0044] In the diagram: 1. Column; 2. Movable groove; 3. Main fixed rod; 4. Slave fixed rod; 5. Adjusting frame; 6. Support plate; 7. Mounting mechanism; 701. Slide groove; 702. Compression spring; 703. Main locking block; 704. Slave locking block; 705. Spring piece; 706. Connecting block; 707. Gear ring; 708. Gear plate; 709. Push plate; 710. Pad plate; 711. Adjusting screw; 8. Adjusting mechanism; 801 802. Adjusting groove; 803. Anti-slip nail plate; 804. Compression spring; 805. Main tooth plate; 806. Spring rod; 807. Crossbar; 808. Driven tooth plate; 809. T-shaped sleeve; 810. Inclined groove; 811. Trapezoidal block; 812. Guide post; 813. T-shaped adjusting post; 814. Spiral groove; 815. L-shaped baffle; 906. Cleaning mechanism; 907. Telescopic rod; 908. U-shaped bracket; 909. Scraper. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figures 1 to 13 This invention provides a technical solution: a safety frame for construction, comprising four uprights 1. The side walls of the two right-side uprights 1 are each provided with movable grooves 2, and a main fixing rod 3 is slidably connected between the two movable grooves 2. A secondary fixing rod 4 is fixedly connected between the two left-side uprights 1, and an adjusting frame 5 is movably connected between two horizontally aligned uprights 1. It should be noted that the adjusting frame 5 is equivalent to a connecting device in the prior art. By adjusting the distance between the left and right uprights 1 through the connecting device, the uprights 1 on the left and right sides can move relative to each other to reduce the space occupied for storage. This is prior art and will not be described in detail here. Furthermore, the lower part of the uprights 1 is provided with supporting legs.

[0047] A support plate 6 is provided between the main fixing rod 3 and the secondary fixing rod 4. An installation mechanism 7 is movably connected between the lower part of the support plate 6 and the main fixing rod 3 and the secondary fixing rod 4. An adjustment mechanism 8 is movably connected between the inside of the support plate 6 and the two columns 1 on the right side.

[0048] A cleaning mechanism 9 that works in conjunction with a support plate 6 is movably connected between the upper parts of the two columns 1 on the right side.

[0049] In this embodiment, as Figures 1 to 13 As shown, the installation mechanism 7 includes two slides 701. The two slides 701 are symmetrically opened at the bottom of the support plate 6. A compression spring 702 is slidably connected inside the slide 701. A main locking block 703 is fixedly connected to the right end of the compression spring 702. The side wall of the main locking block 703 is fixedly connected to the inner wall of the slide 701.

[0050] The left end of the compression spring 702 is connected to a follower block 704 that cooperates with the follower rod 4. The side wall of the follower block 704 is slidably connected to the inside of the slide groove 701. The middle of the inner wall of the slide groove 701 is symmetrically fixed with a spring piece 705 that cooperates with the follower block 704. It should be noted that: by setting the compression spring 702, when the left and right columns 1 move to their extreme positions for storage, the support plate 6 flips upward and is parallel to the column 1. The compression spring 702 then presses against the follower block 704, so that the follower block 704 is located on the side wall of the spring piece 705. This controls the distance between the main block 703 and the follower block 704, ensuring that when the support plate 6 flips back to the follower rod 4, the follower block 704 can accurately lock onto the follower rod 4.

[0051] Connecting blocks 706 are rotatably connected to both sides of the main fixing rod 3. The upper parts of the two connecting blocks 706 are movably installed on the lower parts of the two main locking blocks 703. Gear rings 707 are fixedly connected to the opposite sides of the two connecting blocks 706. Gear racks 708 are fixedly connected to both sides of the fixing rod 4, and the two gear racks 708 correspond one-to-one with the two gear rings 707. It should be noted that when the left and right columns 1 move relative to each other to a certain distance under the action of the adjusting frame 5, the bottom of the gear rack 708 engages with the top of the gear ring 707, so that the support plate 6 rotates clockwise on the top of the main fixing rod 3 through the cooperation of the main locking block 703 and the connecting block 706, so that the support plate 6 is parallel to the column 1 and can be automatically retracted when not in use; and the gear ring 707 is movably sleeved on the surface of the main fixing rod 3 through the central round hole, and a support bearing is fixedly connected between the inner ring of the connecting block 706 and the surface of the main fixing rod 3.

[0052] A push plate 709 is slidably connected between the two movable slots 2. A pad 710 is fixedly connected between the upper and lower parts of the two right-side columns 1. An adjusting screw 711 is threaded between the two pads 710. The left side of the push plate 709 is threaded to the upper part of the adjusting screw 711. It should be noted that rotating the adjusting screw 711 causes the push plate 709 to push the two connecting blocks 706 and the main fixing rod 3 upwards within the movable slot 2. After the support plate 6 is flipped upwards for storage, rotating the adjusting screw 711 again causes the push plate 709 to move downwards. Under gravity, the connecting blocks 706 and the main fixing rod 3 slide downwards within the movable slot 2. The mechanism that causes the connecting blocks 706 and the main fixing rod 3 to rise here could also be an electric push rod to improve operational convenience.

[0053] In this embodiment, as Figures 1 to 13 As shown, the bottom of the retaining block 704 is arc-shaped, and the retaining block 704 has arc-shaped chamfers on all four sides near the inner side of the slide groove 701. It should be noted that: the arc shape makes it convenient for the retaining block 704 to lock onto the surface of the retaining rod 4 after the support plate 6 is flipped; while the arc-shaped chamfers allow the retaining block 704 to press against the spring piece 705 and deform when the retaining rod 4 moves with the retaining block 704 inside the slide groove 701, and move to the left side of the slide groove 701.

[0054] In this embodiment, as Figures 1 to 13 As shown, a bolt is rotatably connected to the lower part of the main locking block 703, with one end of the bolt threaded through the main locking block 703 and connected to the upper part of the adjacent connecting block 706. It should be noted that the bolt arrangement facilitates the quick removal of the support plate 6 and the main locking block 703 from the main fixing rod 3.

[0055] In this embodiment, as Figures 1 to 13 As shown, the adjustment mechanism 8 includes an adjustment groove 801, which is located inside the support plate 6. Five anti-slip nail plates 802 are equidistantly connected inside the adjustment groove 801. A compression spring 803 is fixedly connected between the bottom of each anti-slip nail plate 802 and the inner bottom surface of the adjustment groove 801. The top of each anti-slip nail plate 802 extends outside the support plate 6, and a main toothed plate 804 is fixedly connected to the side wall of each anti-slip nail plate 802. It should be noted that the support plate 6 has insertion holes at its top, and the upper parts of the anti-slip nail plates 802 are movably inserted into the corresponding insertion holes.

[0056] A spring rod 805 is symmetrically fixedly connected to the left side of the inner wall of the adjusting groove 801. A crossbar 806 is fixedly connected to one end of the spring rod 805. Five toothed plates 807 are fixedly connected at equal intervals on the surface of the crossbar 806. The five toothed plates 807 correspond one-to-one with the five main toothed plates 804 on the same side.

[0057] T-shaped sleeves 808 are symmetrically slidably connected to the right side of the inner wall of the adjusting groove 801. Two T-shaped sleeves 808 correspond one-to-one with two crossbars 806. One end of each T-shaped sleeve 808 extends beyond the support plate 6. A sloping groove 809 is formed in the middle of each T-shaped sleeve 808. The end of the crossbar 806 away from the spring rod 805 is slidably connected inside the adjacent sloping groove 809. A trapezoidal block 810 that mates with the T-shaped sleeve 808 is fixedly connected to the upper side wall of the column 1. It should be noted that when the support plate 6 is flipped to a horizontal position, the protruding end of the T-shaped sleeve 808 contacts the side wall of the trapezoidal block 810. At this time, the T-shaped sleeve 808 slides into the adjusting groove 801 under pressure.

[0058] Guide posts 811 are fixedly connected to both sides of the crossbar 806, and T-shaped adjusting posts 812 are symmetrically rotatably connected to both sides of the inner wall of the adjusting groove 801. The four guide posts 811 correspond one-to-one with the four T-shaped adjusting posts 812. A spiral groove 813 is formed in the middle of the T-shaped adjusting post 812, and one end of the guide post 811 is slidably connected inside the adjacent spiral groove 813. It should be noted that when the guide post 811 moves from one side of the spiral groove 813 to the other, the T-shaped adjusting post 812 can only rotate 90 degrees, allowing the T-shaped adjusting post 812 to rotate 90 degrees along the side wall of the support plate 6, carrying the L-shaped baffle 814.

[0059] An L-shaped baffle 814 is fixedly fitted onto the side of the T-shaped adjusting column 812 away from the spiral groove 813, and the surface of the L-shaped baffle 814 overlaps with the top of the anti-slip nail plate 802. It should be noted that the side wall of the support plate 6 has a groove that matches the L-shaped baffle 814. The left side of the T-shaped adjusting column 812 is movably inserted into the groove, and the L-shaped baffle 814 is set in the groove to avoid interference between the L-shaped baffle 814 and the surface of the support plate 6 during the rotation and flipping of the T-shaped adjusting column 812.

[0060] In this embodiment, as Figures 1 to 13 As shown, a guide pin is fixedly connected to one end of the crossbar 806 near the T-sleeve 808, and the crossbar 806 is slidably connected to the inside of the inclined groove 809 through the guide pin. It should be noted that when the protruding end of the T-sleeve 808 is pressed and moves into the adjusting groove 801, the guide pin, in cooperation with the inclined groove 809, moves the crossbar 806 to the left.

[0061] A short spring is fixedly connected between the side wall of the T-sleeve 808 and the inner wall of the adjusting groove 801. It should be noted that the short spring facilitates the quick reset of the T-sleeve 808 after the pressure is released.

[0062] In this embodiment, as Figures 1 to 13 As shown, both ends of the T-shaped adjusting column 812 are rotatably connected to mounting blocks, and the side walls of the mounting blocks are fixedly connected to the inner wall of the adjusting groove 801.

[0063] In this embodiment, as Figures 1 to 13 As shown, the cleaning mechanism 9 includes two telescopic rods 901, which are fixedly connected to the upper parts of the two right-side columns 1 respectively. A U-shaped bracket 902 is fixedly connected between the two telescopic rods 901, and a scraper 903 is fixedly connected to the middle of the U-shaped bracket 902. It should be noted that when the support plate 6 is flipped upwards, and then moves downwards inside the movable groove 2 as the main fixing rod 3 moves, the scraper 903 can stably overlap the surface of the support plate 6 under the action of the telescopic rods 901, automatically cleaning the surface of the support plate 6 during the movement; the telescopic rods 901 can be spring rods.

[0064] In this embodiment, as Figures 1 to 13 As shown, a method for using a safety frame in construction includes the following steps:

[0065] S1. When using the safety frame for construction, by rotating the adjusting screw 711, the pad 710 on the adjusting screw 711, along with the connecting block 706 and the main fixed rod 3, rises to the limit position inside the movable groove 2. Then, by controlling the adjusting frame 5, the left and right columns 1 move in opposite directions to adjust the distance between the left and right columns 1. During the movement of the left column 1, the rack plate 708 on the fixed rod 4 and the toothed ring 707 on the main fixed rod 3 mesh between the two left columns 1, so that the toothed ring 707, along with the connecting block 706 and the support plate 6, rotates counterclockwise on the surface of the main fixed rod 3. As the support plate 6 flips, the latching block 704 at the bottom of the support plate 6 engages with the top of the fixed rod 4 for installation.

[0066] S2. When the safety frame is not in use and is being stored, the adjusting frame 5 moves the left and right uprights 1 relative to each other. At this time, during the engagement of the rack plate 708 and the toothed ring 707, the toothed ring 707 rotates the connecting block 706 and the support plate 6 clockwise by 90 degrees. At this time, the T-shaped sleeve 808 on the side wall of the support plate 6 releases the pressure between itself and the upper trapezoidal block 810 of the upright, causing one end of the T-shaped sleeve 808 to move outward from the support plate 6. Then, the T-shaped sleeve 808 pulls the crossbar through the inclined groove 809. 806 moves to the right, causing the guide post 811 on the crossbar 806 to slide along the spiral groove 813 on the side wall of the T-shaped adjusting post 812. At this time, the T-shaped adjusting post 812, along with the L-shaped baffle 814, rotates ninety degrees and overlaps at the top of the anti-slip nail. Simultaneously, as the crossbar 806 moves to the left, the toothed plate 807 on the crossbar 806 is disengaged from the main toothed plate 804. The compression spring 803 presses against the top plate of the anti-slip nail plate 802 and contacts the surface of the L-shaped baffle 814 to compensate for the exposed length.

[0067] S3. When the support plate 6 is flipped counterclockwise from the direction of the fixed rod 4, the protruding position of the T-shaped sleeve 808 is flipped to the position of the trapezoidal block 810 on the side wall of the column 1. At this time, the T-shaped sleeve 808 is pressed into the interior of the adjustment groove 801, causing the crossbar 806 to move to the left inside the adjustment groove 801. During the translation of the toothed plate 807 on the crossbar 806, it is inserted into the tooth position on the side wall of the main toothed plate 804, which restricts the movement of the anti-slip nail plate 802. At the same time, the guide post 811 and the spiral groove 813 on the side wall of the T-shaped adjustment post 812 slide together, causing the T-shaped adjustment post 812 to rotate 90 degrees in the opposite direction with the L-shaped baffle 814. The L-shaped baffle 814 is released from contact with the anti-slip nail plate 802. In this way, after each use and storage of the support plate 6, the anti-slip nail plate 802 contacts the flipped L-shaped baffle 814 once, compensating for the wear of the anti-slip nail plate 802.

[0068] S4. Finally, when the safety frame is not in use, the side wall of the support plate 6, which is flipped to the vertical position, contacts the surface of the scraper 903. Rotate the adjusting screw 711 to move the pad 710 downward. Under the action of gravity, the connecting block 706, along with the main fixing rod 3 and the support plate 6, slides downward inside the movable groove 2. The side wall of the downward-moving support plate 6 scrapes the surface with the cooperation of the telescopic rod 901 and the scraper 903.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety frame for construction, comprising columns (1), characterized in that: The column (1) is set to four. The two columns (1) on the right side are provided with movable grooves (2). The two movable grooves (2) are slidably connected to a main fixing rod (3). The two columns (1) on the left side are fixedly connected to a secondary fixing rod (4). The two columns (1) at the same level are movably connected to an adjustment frame (5). A support plate (6) is provided between the main fixing rod (3) and the secondary fixing rod (4). An installation mechanism (7) is movably connected between the lower part of the support plate (6) and the main fixing rod (3) and the secondary fixing rod (4). An adjustment mechanism (8) is movably connected between the interior of the support plate (6) and the two columns (1) on the right side. A cleaning mechanism (9) that cooperates with the support plate (6) is movably connected between the upper parts of the two columns (1) on the right side. The installation mechanism (7) includes a slide (701), and there are two slides (701). The two slides (701) are symmetrically opened at the bottom of the support plate (6). A compression spring (702) is slidably connected inside the slide (701). A main locking block (703) is fixedly connected to the right end of the compression spring (702). The side wall of the main locking block (703) is fixedly connected to the inner wall of the slide (701). The left end of the compression spring (702) is connected to a follower block (704) that cooperates with the follower rod (4). The side wall of the follower block (704) is slidably connected to the inside of the slide groove (701). The middle part of the inner wall of the slide groove (701) is symmetrically fixedly connected to a spring piece (705) that cooperates with the follower block (704). Both sides of the main fixing rod (3) are rotatably connected to connecting blocks (706). The upper parts of the two connecting blocks (706) are respectively movably installed on the lower parts of the two main clamping blocks (703). The opposite sides of the two connecting blocks (706) are fixedly connected to toothed rings (707). Both sides of the secondary fixing rod (4) are fixedly connected to rack plates (708). The two rack plates (708) correspond one-to-one with the two toothed rings (707). A push plate (709) is slidably connected between the two movable slots (2), and a pad (710) is fixedly connected between the upper and lower parts of the two columns (1) on the right side. An adjusting screw (711) is threaded between the two pads (710), and the left side of the push plate (709) is threaded to the upper part of the adjusting screw (711). The adjustment mechanism (8) includes an adjustment groove (801), which is located inside the support plate (6). Five anti-slip nail plates (802) are equidistantly connected inside the adjustment groove (801). A compression spring (803) is fixedly connected between the bottom of the anti-slip nail plate (802) and the inner bottom surface of the adjustment groove (801). The top of the anti-slip nail plate (802) extends outside the support plate (6). A main tooth plate (804) is fixedly connected to the side wall of the anti-slip nail plate (802). A spring rod (805) is symmetrically fixedly connected to the left side of the inner wall of the adjusting groove (801). A crossbar (806) is fixedly connected to one end of the spring rod (805). Five toothed plates (807) are fixedly connected at equal intervals on the surface of the crossbar (806). The five toothed plates (807) correspond one-to-one with the five main toothed plates (804) on the same side. T-shaped sleeves (808) are symmetrically slidably connected to the right side of the inner wall of the adjusting groove (801). The two T-shaped sleeves (808) correspond one-to-one with the two crossbars (806). One end of the T-shaped sleeve (808) extends to the outside of the support plate (6). An inclined groove (809) is opened in the middle of the T-shaped sleeve (808). The end of the crossbar (806) away from the spring rod (805) is slidably connected to the inside of the adjacent inclined groove (809). A trapezoidal block (810) that cooperates with the T-shaped sleeve (808) is fixedly connected to the side wall of the upper part of the column (1). Guide posts (811) are fixedly connected to both sides of the crossbar (806), and T-shaped adjustment posts (812) are symmetrically rotatably connected to both sides of the inner wall of the adjustment groove (801). The four guide posts (811) correspond one-to-one with the four T-shaped adjustment posts (812). A spiral groove (813) is opened in the middle of the T-shaped adjustment post (812), and one end of the guide post (811) is slidably connected to the inside of the adjacent spiral groove (813). An L-shaped baffle (814) is fixedly sleeved on the side of the T-shaped adjusting column (812) away from the spiral groove (813), and the surface of the L-shaped baffle (814) overlaps with the top of the anti-slip nail plate (802).

2. The safety frame for construction as described in claim 1, characterized in that: The bottom of the card block (704) is arc-shaped, and the card block (704) has arc-shaped chamfers on all four sides near the inner side of the slide groove (701).

3. A safety frame for construction according to claim 2, characterized in that: The lower part of the main locking block (703) is rotatably connected with a bolt, one end of which passes through the main locking block (703) and is threadedly connected to the upper part of the adjacent connecting block (706).

4. A safety frame for construction according to claim 3, characterized in that: The crossbar (806) is fixedly connected to a guide pin at one end near the T-sleeve (808), and the crossbar (806) is slidably connected to the inside of the inclined groove (809) through the guide pin; A short spring is fixedly connected between the side wall of the T-sleeve (808) and the inner wall of the adjusting groove (801).

5. A safety frame for construction according to claim 4, characterized in that: Both ends of the T-shaped adjusting column (812) are rotatably connected to mounting blocks, and the side wall of the mounting block is fixedly connected to the inner wall of the adjusting groove (801).

6. A safety frame for construction according to claim 5, characterized in that: The cleaning mechanism (9) includes a telescopic rod (901), which is provided as two. The two telescopic rods (901) are respectively fixedly connected to the upper part of the two columns (1) on the right side. A U-shaped bracket (902) is fixedly connected between the two telescopic rods (901), and a scraper (903) is fixedly connected to the middle part of the U-shaped bracket (902).

7. The method of using a safety frame for construction according to claim 1, comprising the following steps: S1. When using the safety frame for construction, by rotating the adjusting screw (711), the pad (710) on the adjusting screw (711) along with the connecting block (706) and the main fixed rod (3) rise to the limit position inside the movable groove (2). Then, by controlling the adjusting frame (5), the columns (1) on the left and right sides move in opposite directions to adjust the distance between the columns (1) on the left and right sides. During the movement of the left column (1), the rack plate (708) on the fixed rod (4) and the toothed ring (707) on the main fixed rod (3) mesh between the two left columns (1), so that the toothed ring (707) along with the connecting block (706) and the support plate (6) rotate counterclockwise on the surface of the main fixed rod (3). As the support plate (6) flips, the latching block (704) at the bottom of the support plate (6) is engaged with the top of the fixed rod (4) for installation. S2. When the safety frame is not in use and is being stored, the control adjustment frame (5) moves the left and right columns (1) relative to each other. At this time, during the engagement of the rack plate (708) and the toothed ring (707), the toothed ring (707) rotates 90 degrees clockwise with the connecting block (706) and the support plate (6). At this time, the T-shaped sleeve (808) on the side wall of the support plate (6) releases the pressure between itself and the upper trapezoidal block (810) of the column (1), causing one end of the T-shaped sleeve (808) to move outward of the support plate (6). Then, the T-shaped sleeve (808) pulls the crossbar (810) through the inclined groove (809). 06) Move to the right, so that the guide post (811) on the crossbar (806) slides along the spiral groove (813) track on the side wall of the T-shaped adjusting post (812). At this time, the T-shaped adjusting post (812) rotates ninety degrees with the L-shaped baffle (814) and overlaps the top position of the anti-slip nail plate (802). At the same time, as the crossbar (806) moves to the left, the toothed plate (807) on the crossbar (806) is disconnected from the main toothed plate (804). The compression spring (803) presses against the top plate of the anti-slip nail plate (802) and contacts the surface of the L-shaped baffle (814) to compensate for the exposed length. S3. When the support plate (6) is rotated counterclockwise from the direction of the fixed rod (4), the protruding position of the T-shaped sleeve (808) is rotated to the position of the trapezoidal block (810) on the side wall of the column (1). At this time, the T-shaped sleeve (808) is pressed into the interior of the adjusting groove (801), causing the crossbar (806) to move to the left inside the adjusting groove (801). During the translation of the toothed plate (807) on the crossbar (806), the toothed plate is inserted into the toothed position on the side wall of the main toothed plate (804), which restricts the anti-slip nail plate ( The movement of 802) simultaneously allows the guide post (811) to slide in conjunction with the spiral groove (813) on the side wall of the T-shaped adjusting post (812), causing the T-shaped adjusting post (812) to rotate 90 degrees in the opposite direction with the L-shaped baffle (814). The L-shaped baffle (814) then releases contact with the anti-slip nail plate (802). Thus, each time the support plate (6) is used and stored, the anti-slip nail plate (802) contacts the flipped L-shaped baffle (814) once, compensating for the wear of the anti-slip nail plate (802). S4. Finally, when the safety frame is not used, the side wall of the support plate (6) in the vertical position is flipped to contact the surface of the scraper (903). The adjusting screw (711) is rotated to move the pad (710) downward. Under the action of gravity, the connecting block (706) slides downward inside the movable groove (2) along with the main fixing rod (3) and the support plate (6). The side wall of the downward-moving support plate (6) is scraped on the surface with the cooperation of the telescopic rod (901) and the scraper (903).

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