Anti-toppling protection device for road construction

Abstract

The invention relates to the technical field of road construction, and discloses a road construction anti-toppling protection device which comprises two protection plates, and ladder groove frames are fixedly connected to the two ends of the opposite sides of the two protection plates; the interiors of the left ladder groove frame and the right ladder groove frame in the same group are fixedly connected with a limiting sliding groove frame, an auxiliary sliding groove frame and two adjusting sliding groove frames respectively, and meanwhile, the limiting sliding groove frame and the auxiliary sliding groove frame are located in the ladder groove frame on the same side and are opposite to the two adjusting sliding groove frames at the other end in position. According to the anti-toppling protection device for road construction, when the angle of the stretching supporting rod is adjusted, the main rotating supporting rod rotating as well can be locked in the direction through the one-way assembly, and the reinforcing rod between the main rotating supporting rod and the stretching supporting rod can guarantee mutual linkage and can also conduct triangular supporting on the two protection plates; and the connection stability is enhanced, toppling can be effectively prevented, and effective protection is carried out on the premise that construction is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, in particular to an anti-dumping protection device for road construction. Background Art

[0002] With economic development, transportation convenience is also very important. Therefore, roads are constantly under construction. In addition to maintenance, the constructed roads sometimes require sewer excavation and repair on both sides of the road. In various situations such as sewer repair, the road will be dug up for repair and replacement.

[0003] In order to prevent the soil from dumping on both sides of the excavated pit and to facilitate excavation and pipe placement in the middle of the pit, an anti-collapse baffle is used as an anti-collapse protection device. However, the middle connection structure of the existing anti-collapse baffle mostly uses a telescopic rod structure. During the transportation of this device, due to the lack of a closed locking structure and the limitation of the minimum length of the telescopic rod itself, it is not only necessary to tie and fix it on the vehicle during transportation, but also to avoid bumpy roads causing damage to the devices themselves, which affects the service life and also poses a safety hazard. During the expansion and use, the telescopic rod itself requires a motor or hydraulic press to open. Combined with the bumps during transportation and the looseness of the device itself, the safety factor of the device is further low, which is easy to cause damage to the motor and hydraulic press. At the same time, there is no obvious distance standard for the telescopic rod, and the opening distance of the two baffles cannot be well controlled. The gap with the inner wall of the pit is large or exceeds the size of the pit, which is inconvenient to use.

[0004] In response to the above problems, it is urgent to carry out innovative designs based on the original road construction anti-dumping protection devices. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-dumping protection device for road construction, so as to solve the problem proposed in the above background technology that the existing device lacks a closed locking structure and is limited by the minimum length of the telescopic rod itself, which results in the need to be not only tied and fixed on the vehicle during transportation, but also to avoid collisions between the devices due to bumpy roads, thereby affecting the service life. There are also safety hazards. During the process of stretching and use, the telescopic rod itself requires a motor or a hydraulic press to open. Combined with the bumps during transportation and the looseness of the device itself, the safety factor of the device is further low, and it is easy to cause damage to the motor and the hydraulic press. At the same time, the telescopic rod has no obvious distance standard, and the opening distance of the two baffles cannot be well controlled. The gap with the inner wall of the pothole is large or exceeds the size of the pothole, which is inconvenient to use.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a road construction anti-dumping protection device, comprising: Two protective plates, both ends of the opposite sides of the two protective plates are fixedly connected to the ladder trough frames, and the four ladder trough frames are grouped into two, and the interiors of the left and right ladder trough frames of the same group are respectively fixedly connected to the limited slide frame, the auxiliary slide frame and the two adjustment slide frames, while the limited slide frame and the auxiliary slide frame are located in the ladder trough frame on the same side and are opposite to the two adjustment slide frames at the other end, and both ends of the upper surfaces of the two ladder trough frames are provided with groove structures; The top of each set of said ladder trough frames is respectively fixedly connected to the two ends of the self-locking assembly on the top of each set of said ladder trough frames, and each set of said limiting slide frames and the auxiliary slide frames are rotatably connected to the main rotating support rod inside the said limiting slide frames, and the internal movably connected to the one-way assembly, and each set of said adjusting slide frames is rotatably connected to the stretching support rod inside, and the side surface of the stretching support rod is opened as a through-opening structure, and each set of said main rotating support rod and the opposite end of the stretching support rod are rotatably connected through a series assembly, and the top of the series assembly is set as an elliptical groove structure, and the side surface of the main rotating support rod is penetrated and connected with a reinforcement rod, and the other end of the reinforcement rod is slidably connected in the through-opening slide groove of the stretching support rod, and the outward side of each set of said adjusting slide frames is fixedly connected to the angle adjustment assembly, and the internal movably connected to the expansion assembly of the stretching support rod.

[0007] Preferably, the self-locking assembly includes a front concave frame and a door pressure frame, the ends of the front concave frame and the door pressure frame at opposite positions are respectively fixedly connected to the top end of the upper surface of the ladder groove frame, the groove of the front concave frame is provided with a vertically staggered crossbar structure, the middle part of the side surface of the front concave frame is connected with a shaft rod, the side surface of the shaft rod is sleeved with a clamping plate, and the end of the clamping plate away from the ladder groove frame is provided with an arc structure, and the lower surface of the clamping plate is provided with a U-shaped groove structure; The upper surface of the door pressure frame at one end connected to the ladder groove frame is fixedly connected to the placement frame, and the front end of the door pressure frame and the interior of the placement frame are both set as through-slot structures, the interior of the placement frame is penetrated by an insertion rod, and the other end of the insertion rod is set as a threaded hole structure, the side of the support arm facing the interior of the door pressure frame is fixedly connected to the lower side seat, the internal thread of the lower side seat is penetrated by a threaded rod, and the top of the ladder groove frame close to the lower side seat is fixedly connected to the upper side seat, and the interior of the upper side seat is penetrated by a clamping rod, and the other ends of the threaded rod and the clamping rod are movably connected to the threaded hole at the other end of the insertion rod.

[0008] Preferably, the limiting slide frame includes an arc groove recess frame, the two sides of the arc groove recess frame are fixedly connected to the inner walls of the side plates of the ladder groove frame, and the top of the arc groove recess frame is set as four elliptical slide structures, the interior of the arc groove recess frame is connected with a main shaft rod, and the two ends of the main shaft rod located on the inner side surface of the arc groove recess frame are both sleeved with reverse gears, and the auxiliary slide frame has the same structure except for the reverse gears, and the internal structure of the adjustment slide frame is the same as that of the auxiliary slide frame.

[0009] Preferably, the one-way component includes two arc seats, the other sides of the two arc seats are fixedly connected to the side surface of the ladder groove frame at one connected end, and the two arc seats are located below the front concave frame, and the interior of the two arc seats is plugged with a connecting rod, and the side surfaces of the rod bodies of the two connecting rods are set as groove structures, and the side surfaces of the connecting rods are movably connected with a shift rod, and the other end of the shift rod is set as a hexagonal plate structure, and the lower surface axis of the hexagonal plate at the other end of the shift rod is fixedly connected to an opposite rotating rod, and the side of the opposite rotating rod is fixedly connected to the opposite rotating rod. The surface is rotatably connected to the top of the arc groove recess, and the bottom of the opposing rotating rod is fixedly connected to a rotating gear. The two sides of the rotating gear are respectively rotatably connected to L guide plates, and the opposite sides of the two L guide plates are set as a rack structure, and one end of the long plate of the L guide plate is fixedly connected to a block, and the upper surfaces of the short plate of the L guide plate and the block are fixedly connected to the opposing shift rod, and the opposite sides of the two short plates of the L guide plates are fixedly connected to a one-way block, and the other end of the one-way block is consistent with the shape of the hole groove of the reverse gear.

[0010] Preferably, the main rotating support rod includes a ring rod, one end of the ring rod is sleeved on the side surface of the main shaft rod, both sides of the ring rod are fixedly connected to guide rods, the side surfaces of the two guide rods are slidably connected in the slideway of the arc groove recessed frame, the other end of the ring rod is fixedly connected to the main rod, the other end of the main rod is fixedly connected to the connecting rod with a hole, and the stretching support rod is located at one end of the limiting slide groove frame and has the same structure as the main rotating support rod; The reinforcement rod includes two movable shaft rods, the side surfaces of the two movable shaft rods are connected to the side surface of the main rod, the outward ends of the two movable shaft rods are fixedly connected to fixed rod sleeves, the side surfaces of the two fixed rod sleeves are fixedly connected to outer rods, the other ends of the two outer rods are fixedly connected to sliding shaft rods, and the opposite ends of the two sliding shaft rods are set as concave structures.

[0011] Preferably, the series assembly includes a series shaft rod, the side surface of the series shaft rod is connected through the hole of the perforated connecting rod, both ends of the series shaft rod are fixedly connected with a pressure plate, the upper surfaces of the two pressure plates are fixedly connected with a top plate, the upper surfaces of the two top plates are fixedly connected with a hanging plate, and the interior of the hanging plate is set as an elliptical groove structure.

[0012] The cam is fixedly mounted on a pivotal position on the adjusting base, and the cam is adapted to move the cam forwardly and downwardly relative to the adjusting base, the cam being adapted to move the cam forwardly and downwardly relative to the adjusting base. The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket.

[0013] Preferably, the stretching support rod includes a trigger frame, one end of the trigger frame is fixedly connected to the ring rod of the stretching support rod, the other end of the trigger frame is fixedly connected to the middle rod, the other end of the middle rod is fixedly connected to the tube rod, both sides of the elliptical groove of the tube rod are fixedly connected to the square frame, the other end of the tube rod is fixedly connected to the connecting hole rod, the interior of the trigger frame is set as a hollow structure, and the top of the hollow groove of the trigger frame is set as a trapezoidal slide groove structure.

[0014] Preferably, the expansion assembly includes a nest and a handle, the lower surface of the nest is fixedly connected to the top slot of the trigger frame, the interior of the nest is penetrated by a trigger pressure rod, and the top of the trigger pressure rod is set as a pressure cap structure, and the top of the trigger pressure rod is set as an upper inclined block structure, the lower surface of the trigger pressure rod pressure cap and the upper surface of the nest are fixedly connected with an upper spring, and the inner part of the upper spring is sleeved on the side surface of the trigger pressure rod, one end of the pull handle is fixedly connected to an upper push rod, and the upper push rod is set as a telescopic structure, the side surface of the upper push rod is slidably connected to the lower surface of the trigger frame, and the other end of the upper push rod is penetrated by an L The cam is fixedly mounted on the left side of the L frame, and the other end of the cam is fixedly connected to the inner slide block, and one end of the inner slide block is slidably connected to the inside of the L frame, and the other end of the inner slide block is fixedly connected to the middle push rod, and the other end of the middle push rod is fixedly connected to the lower inclined block structure, and the upper inclined block of the trigger pressure rod is built on the upper surface of the lower inclined block of the middle push rod, the side surface of the L frame is fixedly connected to the telescopic rod, the other end of the telescopic rod is fixedly connected to the directional slide plate, the side surface of the telescopic rod is sleeved with a connecting spring, and the upper and lower ends of the other side of the directional slide plate are fixedly connected to the downward-pressing telescopic push rod; The two downward-pressing telescopic push rods are fixedly connected to the first frame on the side surfaces, and the downward-pressing telescopic push rod extends to one end of the first frame and is connected to the second frame, and the two downward-pressing telescopic push rods extend to one end of the second frame and are fixedly connected to the bottom frame, the bottom frame is fixedly connected to the middle of one side of the first frame with an expansion slide bar, and the first frame and the second frame are slidably connected to the side surface of the expansion slide bar, and the downward-pressing telescopic push rod is located on the side surface of the first frame and the second frame and is set as a fixed block structure, and the downward-pressing telescopic push rod extends to the side surface of the second frame and is sleeved with an expansion spring, the first The upper ends of the two sides of the group frame are fixedly connected to the upper axle seats, and the upper and lower ends of the upper axle seats are movably connected to the middle axle seats by a long rod, and the other side of the middle axle seat is movably connected to the lower axle seat by a long rod. The two opposite sides of the lower axle seats are fixedly connected to the two sides of the second group frame, and the second group frame and the two sides of the bottom group frame are fixedly connected to the outer expansion assembly. The interior of the outer expansion assembly includes an upper axle seat, a long rod, a middle axle seat and a lower axle seat, and the outward sides of the two middle axle seats on the same side are fixedly connected to a push plate, and the outward sides of the two push plates are fixedly connected to an external pressure cone block, and the external pressure cone block is clamped with the inner groove of the sliding shaft rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the two protective plates can be unlocked after closing through the self-locking component located at the top of the opposite side of the ladder trough frame. The plug-in closing structure in the self-locking component is simple and convenient to operate. The self-locking component is unlocked by pulling out the plug rod, which ensures that even if the connection strength is increased, the effort required for the staff to unlock the plate will not be increased, which is simple and convenient.

[0016] In the present invention, through the serial component connection mode at the connection point of the main rotating support rod and the stretching support rod, the protective plates on both sides can be closed to the maximum extent in the bending state, reducing the gap between the protective plates, preventing frequent collisions of the protective plates during transportation, and reducing safety hazards during transportation.

[0017] In the present invention, through the limiting slide frame, the auxiliary slide frame and the arc groove structure inside the adjustment slide frame, in conjunction with the expansion component structure inside the stretching support rod, and the angle adjustment components at both ends of the stretching support rod, the stretching support rod can be rotated to the corresponding angle according to the length of the pit and fixed after unfolding. The device has wide adaptability and strong adjustability. The main power is provided by the crane rope, which saves energy and reduces the demand for power devices. It has rich usage scenarios.

[0018] In the present invention, through the connection structure between the main rotating support rod and the limiting slide frame, the one-way component on the top of the limiting slide frame serves as an auxiliary support rod of the adjustment structure. When the angle of the stretching support rod is adjusted, the main rotating support rod that is also rotating can be locked in direction through the one-way component. The reinforcement rod between the main rotating support rod and the stretching support rod can not only ensure the linkage between each other, but also provide triangular support for the two protective plates, enhance the connection stability, and effectively provide anti-dumping, thereby providing effective protection without affecting construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a closed schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the component structure of the present invention; Figure 4 This is a schematic diagram of the left side of the structure of the connection end of the self-locking component of the present invention; Figure 5 This is a schematic diagram of the right side of the structure of the connection end of the self-locking component of the present invention; Figure 6 This is a schematic diagram of the overall structure of the angle adjustment assembly of the present invention; Figure 7 This is a schematic diagram of the linkage structure of the angle adjustment assembly of the present invention; Figure 8 This is an enlarged structural diagram of the angle adjustment assembly of the present invention; Figure 9 This is a schematic diagram of the tensile support structure of the present invention; Figure 10 This is a schematic diagram of the cross-sectional structure of the tensile support rod of the present invention; Figure 11 This is a schematic diagram of the expansion assembly and trigger frame structure of the present invention; Figure 12This is a schematic diagram of the expansion assembly and sliding shaft structure of the present invention; Figure 13 This is a schematic diagram of the bottom structure of the expansion assembly of the present invention; Figure 14 This is a schematic cross-sectional view of the expansion assembly of the present invention; Figure 15 This is a schematic diagram of the structure of the self-locking component and the series assembly of the present invention; Figure 16 This is a schematic diagram of the structure of the one-way component, main rotating support rod and reinforcement rod of the present invention; Figure 17 It is a schematic diagram of the one-way assembly and reverse gear structure of the present invention; Figure 18 It is a schematic diagram of the top view of the one-way component of the present invention.

[0020] In the figure: 1. Protective plate; 2. Ladder groove frame; 3. Self-locking assembly; 301. Front concave frame; 302. Axis rod; 303. Clamping plate; 304. Door pressure frame; 305. Placement frame; 306. Insertion rod; 307. Lower side seat; 308. Threaded rod; 309. Upper side seat; 3010. Clamping rod; 4. Positioning slide frame; 401. Arc groove concave frame; 402. Main shaft rod; 403. Reverse gear; 5. Auxiliary slide frame; 6. One-way assembly; 601. Arc seat; 602. Connecting handle fixed rod; 603. Driving rod; 604. Opposing rotating rod; 605. Rotating gear; 606. L guide plate; 607. Stop block; 608. Opposing shift rod; 609, one-way block; 7, main rotating support rod; 701, ring rod; 702, guide rod; 703, main rod; 704, connecting rod with hole; 8, reinforcement rod; 801, movable shaft rod; 802, fixed rod sleeve; 803, outer rod; 804, sliding shaft rod; 9, series assembly; 901, series shaft rod; 902, pressure plate; 903, top plate; 904, hanging plate; 10, adjustment slide frame; 11, angle adjustment assembly; 1101, fixed disk; 1102, outer moving rod; 1103, driven winding plate; 1104, trigger rod; 1105, active winding plate; 1106, outer rotating shaft rod; 1107, crank handle; 1108, Block plate; 1109, inner pressure rod; 1110, rocker seat; 1111, triangular rod; 1112, lower shaft rod; 1113, pull rod; 1114, connecting rod; 1115, straight rod; 1116, multi-tooth wheel; 1117, drum rack; 1118, lower pressure rod; 1119, linkage rod; 1120, linkage winding plate; 1121, linkage shift rod; 1122, linkage disc; 12, stretching rod; 1201, trigger frame; 1202, middle rod; 1203, drum rod; 1204, square frame; 1205, connecting hole rod; 13, expansion assembly; 1301, nesting; 1302, trigger pressure rod; 130 3. Upper push spring; 1304. Middle push rod; 1305. Inner slide; 1306. L-frame; 1307. Upper push rod; 1308. Middle pressure spring; 1309. Pull handle; 1310. Telescopic rod; 1311. Connecting spring; 1312. Directional slide; 1313. Downward telescopic push rod; 1314. First group of frames; 1315. Expansion slide; 1316. Second group of frames; 1317. Bottom group of frames; 1318. Expansion spring; 1319. Upper shaft seat; 1320. Long rod; 1321. Middle shaft seat; 1322. Lower shaft seat; 1323. Outward expansion assembly; 1324. Back plate; 1325. Outward pressure cone block. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-18 The present invention provides a technical solution: a road construction anti-dumping protection device, comprising: Two protective plates 1, both ends of the opposite side of the two protective plates 1 are fixedly connected with a ladder trough frame 2, and the four ladder trough frames 2 are grouped into two, and the interiors of the left and right ladder trough frames 2 of the same group are respectively fixedly connected with a limited slide frame 4, an auxiliary slide frame 5 and two adjustment slide frames 10, while the limited slide frame 4 and the auxiliary slide frame 5 are located in the ladder trough frame 2 on the same side and are opposite to the two adjustment slide frames 10 at the other end, and both ends of the upper surface of the two ladder trough frames 2 are set as groove structures; The top of each opposite side of the ladder trough frame 2 is fixedly connected to the two ends of the self-locking component 3, and the interior of each group of limiting slide frame 4 and auxiliary slide frame 5 is rotatably connected to the main rotating support rod 7, and the interior of the limiting slide frame 4 is movably connected to the one-way component 6. The interior of each group of adjusting slide frame 10 is rotatably connected to the stretching support rod 12, and the side surface of the stretching support rod 12 is opened as a through-opening structure. The opposite ends of each group of main rotating support rod 7 and the stretching support rod 12 are rotatably connected through the series component 9, and the top of the series component 9 is set as an elliptical groove structure. The side surface of the main rotating support rod 7 is penetrated and connected with a reinforcement rod 8, and the other end of the reinforcement rod 8 is slidably connected to the through-opening slide groove of the stretching support rod 12. The outward side of each group of adjusting slide frame 10 is fixedly connected to the angle adjustment component 11, and the interior of the stretching support rod 12 is movably connected to the expansion component 13.

[0023] The self-locking assembly 3 includes a front concave frame 301 and a door pressure frame 304. The ends of the front concave frame 301 and the door pressure frame 304, which are located opposite to each other, are respectively fixedly connected to the top of the upper surface of the ladder groove frame 2. The groove of the front concave frame 301 is provided with a crossbar structure staggered up and down. The middle part of the side surface of the front concave frame 301 is connected with a shaft rod 302. The side surface of the shaft rod 302 is sleeved with a clamping plate 303. The end of the clamping plate 303 away from the ladder groove frame 2 is provided with an arc structure, and the lower surface of the clamping plate 303 is provided with a U-shaped groove structure. The upper surface of one end of the door pressure frame 304 connected to the ladder groove frame 2 is fixedly connected to a placement frame 305, and the front end of the door pressure frame 304 and the interior of the placement frame 305 are both set as through-slot structures, and the interior of the placement frame 305 is penetrated by an insertion rod 306, and the other end of the insertion rod 306 is set as a threaded hole structure, and the side of the support arm facing the inside of the door pressure frame 304 is fixedly connected to a lower side seat 307, and the internal thread of the lower side seat 307 is penetrated by a threaded rod 308, and the top of the ladder groove frame 2 close to the lower side seat 307 is fixedly connected to an upper side seat 309, and the interior of the upper side seat 309 is penetrated by a clamping rod 3010, and the other ends of the threaded rod 308 and the clamping rod 3010 are movably connected to the threaded hole at the other end of the insertion rod 306.

[0024] The limiting slide frame 4 includes an arc groove recess frame 401, both sides of the arc groove recess frame 401 are fixedly connected to the inner wall of the side plate of the ladder groove frame 2, and the top of the arc groove recess frame 401 is set as four elliptical slide structures. The interior of the arc groove recess frame 401 is connected with a main shaft rod 402, and the main shaft rod 402 is located at both ends of the inner side surface of the arc groove recess frame 401 and is sleeved with reverse gears 403. The auxiliary slide frame 5 has the same structure except for the reverse gear 403, and the internal structure of the adjustment slide frame 10 is the same as that of the auxiliary slide frame 5.

[0025] The one-way component 6 includes two arc seats 601, the other sides of the two arc seats 601 are fixedly connected to the side surface of the ladder groove frame 2 at one connected end, and the two arc seats 601 are located below the front concave frame 301, and the interior of the two arc seats 601 is plugged with a connecting rod 602, and the side surfaces of the rod bodies of the two connecting rods 602 are set as groove structures, and the side surfaces of the connecting rods 602 are movably connected with a shift rod 603, and the other end of the shift rod 603 is set as a hexagonal plate structure, and the lower surface axis of the hexagonal plate at the other end of the shift rod 603 is fixedly connected with an opposite rotating rod 604, and the side surface of the opposite rotating rod 604 is rotatably connected Connected to the top of the arc slot recess 401, the bottom of the opposing rotating rod 604 is fixedly connected with a rotating gear 605, and the two sides of the rotating gear 605 are respectively rotatably connected with L guide plates 606, and the opposite sides of the two L guide plates 606 are set as a rack structure, one end of the long plate of the L guide plate 606 is fixedly connected with a stop block 607, and the upper surfaces of the short plate of the L guide plate 606 and the stop block 607 are fixedly connected with an opposing shift rod 608, and the opposite sides of the short plates of the two L guide plates 606 are fixedly connected with a one-way block 609, and the other end of the one-way block 609 is consistent with the shape of the hole groove of the reverse gear 403.

[0026] The main rotating support rod 7 includes a ring rod 701, one end of which is sleeved on the side surface of the main shaft rod 402, and both sides of the ring rod 701 are fixedly connected to the guide rods 702. The side surfaces of the two guide rods 702 are slidably connected in the slideway of the arc groove recessed frame 401, and the other end of the ring rod 701 is fixedly connected to the main rod 703, and the other end of the main rod 703 is fixedly connected to the connecting rod 704 with a hole. The stretching support rod 12 is located at one end of the limiting slide frame 4 and has the same structure as the main rotating support rod 7; The reinforcement rod 8 includes two movable shaft rods 801, the side surfaces of the two movable shaft rods 801 are connected to the side surface of the main rod 703, the outward ends of the two movable shaft rods 801 are fixedly connected to the fixed rod sleeves 802, the side surfaces of the two fixed rod sleeves 802 are fixedly connected to the outer rods 803, and the other ends of the two outer rods 803 are fixedly connected to the sliding shaft rods 804, and the opposite ends of the two sliding shaft rods 804 are set as concave structures.

[0027] The series assembly 9 includes a series shaft rod 901, the side surface of the series shaft rod 901 is connected to the hole of the perforated connecting rod 704, both ends of the series shaft rod 901 are fixedly connected to a pressure plate 902, the upper surfaces of the two pressure plates 902 are fixedly connected to a top plate 903, the upper surfaces of the two top plates 903 are fixedly connected to a hanging plate 904, and the interior of the hanging plate 904 is set as an elliptical groove structure.

[0028] The angle adjustment assembly 11 includes a fixed disc 1101, the inward side of the fixed disc 1101 is fixedly connected to the side of the adjustment slide frame 10, the outward side of the fixed disc 1101 is fixedly connected to the outward moving rod 1102, the side surface of the outward moving rod 1102 is movably connected to the driven winding plate 1103, the other end of the driven winding plate 1103 is fixedly connected to the trigger rod 1104, the other end of the side surface of the trigger rod 1104 is fixedly connected to the active winding plate 1105, the other end of the active winding plate 1105 is fixedly connected to the outer shaft rod 1106, the outer shaft rod 1106 The outward end is fixedly connected to a crank handle 1107, the other end of the outer rotating shaft rod 1106 is fixedly connected to an inner pressure rod 1109, and the side surface of the inner pressure rod 1109 is movably connected to a pressure block structure through a spring, the side surface of the outer rotating shaft rod 1106 on the opposite side of the active winding plate 1105 and the inner pressure rod 1109 is fixedly connected to a blocking disk 1108, the side surface of the inner pressure rod 1109 is movably connected to a rocking wheel seat 1110, the other end of the rocking wheel seat 1110 is fixedly connected to the other side of the adjusting slide frame 10, and the active winding plate 1105 is fixed on the side facing the rocking wheel seat 1110 A fixed connecting triangle rod 1111 is connected, and the other end of the triangle rod 1111 is penetrated and connected with a lower shaft rod 1112, and the other end of the lower shaft rod 1112 is penetrated and connected with a suspension rod 1113, and the other end of the suspension rod 1113 is sleeved with a connecting rod 1114, and the side surface of the other end of the connecting rod 1114 is penetrated and connected with a straight rod 1115, and the side surface of the straight rod 1115 is penetrated and connected with a multi-toothed runner 1116, and the straight rod 1115 extends to one end of the multi-toothed runner 1116 and is sleeved with a drum rack 1117, and the drum rack 1117 is set as a multi-toothed runner at one end facing the connecting rod 1114. 1116 has the same tooth hole structure, the side surface of the other end of the straight rod 1115 is sleeved with a downward pressure rod 1118, the other end of the downward pressure rod 1118 is fixedly connected to a linkage rod 1119, the other end of the side surface of the linkage rod 1119 is fixedly connected to a linkage winding plate 1120, the other end of the linkage winding plate 1120 is penetrated by a linkage shift rod 1121, the linkage shift rod 1121 extends to one end of the linkage winding plate 1120 and is fixedly connected to a linkage disc 1122, and the opposite side of the cylinder frame 1117 and the linkage disc 1122 is fixedly connected to both sides of the adjusting slide frame 10.

[0029] The stretching support rod 12 includes a trigger frame 1201, one end of the trigger frame 1201 is fixedly connected to the ring rod 701 of the stretching support rod 12, the other end of the trigger frame 1201 is fixedly connected to the middle rod 1202, the other end of the middle rod 1202 is fixedly connected to the tubular rod 1203, the two sides of the elliptical groove of the tubular rod 1203 are fixedly connected to the square frame 1204, the other end of the tubular rod 1203 is fixedly connected to the connecting hole rod 1205, the interior of the trigger frame 1201 is set as a hollow structure, and the top of the hollow groove of the trigger frame 1201 is set as a trapezoidal slide groove structure.

[0030] The expansion assembly 13 includes a nest 1301 and a handle 1309. The lower surface of the nest 1301 is fixedly connected to the top slot of the trigger frame 1201. The interior of the nest 1301 is penetrated by a trigger pressure rod 1302, and the top of the trigger pressure rod 1302 is set as a pressure cap structure, and the top of the trigger pressure rod 1302 is set as an upper inclined block structure. The lower surface of the pressure cap of the trigger pressure rod 1302 and the upper surface of the nest 1301 are fixedly connected with an upper spring 1303, and the inner part of the upper spring 1303 is sleeved on the side surface of the trigger pressure rod 1302. One end of the handle 1309 is fixedly connected to an upper push rod 1307, and the upper push rod 1307 is set as a telescopic structure. The side surface of the upper push rod 1307 is slidably connected to the lower surface of the trigger frame 1201, and the other end of the upper push rod 1307 is penetrated by an L frame 1306, and the upper The top rod 1307 extends to one end of the L frame 1306 and is sleeved with a medium-pressure spring 1308. The other ends of the upper top rod 1307 and the medium-pressure spring 1308 are fixedly connected to the inner slider 1305, and one end of the inner slider 1305 is slidably connected to the inside of the L frame 1306. The other end of the inner slider 1305 is fixedly connected to the middle top rod 1304, and the other end of the middle top rod 1304 is fixedly connected to the lower inclined block structure, and the upper inclined block of the trigger pressure rod 1302 is built on the upper surface of the lower inclined block of the middle top rod 1304. The side surface of the L frame 1306 is fixedly connected to a telescopic rod 1310, and the other end of the telescopic rod 1310 is fixedly connected to a directional slide plate 1312. The side surface of the telescopic rod 1310 is sleeved with a connecting spring 1311, and the upper and lower ends of the other side of the directional slide plate 1312 are fixedly connected to a downward-pressing telescopic push rod 1313. The side surfaces of the two downward-pressing telescopic push rods 1313 are fixedly connected with the first group frame 1314, and the end of the downward-pressing telescopic push rods 1313 extending to the first group frame 1314 is connected with the second group frame 1316, and the end of the two downward-pressing telescopic push rods 1313 extending to the second group frame 1316 is fixedly connected with the bottom group frame 1317, and the bottom group frame 1317 is fixedly connected with the expansion slide 1315 toward the middle of one side of the first group frame 1314, and the first group frame 1314 and the second group frame 1316 are slidably connected to the side surface of the expansion slide 1315, and the side surfaces of the downward-pressing telescopic push rods 1313 located on the first group frame 1314 and the second group frame 1316 are set as fixed block structures, and the side surfaces of the downward-pressing telescopic push rods 1313 extending to the second group frame 1316 are sleeved with expansion springs 1318. The upper ends of both sides of 1319 are fixedly connected to the upper shaft seat 1319, and the upper and lower ends of the upper shaft seat 1319 are movably connected to the middle shaft seat 1321 through the long rod 1320. The other side of the middle shaft seat 1321 is movably connected to the lower shaft seat 1322 through the long rod 1320. The opposite sides of the two lower shaft seats 1322 are fixedly connected to the two sides of the second group frame 1316, and the second group frame 1316 and the two sides of the bottom group frame 1317 are fixedly connected to the external expansion component 1323. The interior of the external expansion component 1323 includes the upper shaft seat 1319, the long rod 1320, the middle shaft seat 1321 and the lower shaft seat 1322, and the outward side of the two middle shaft seats 1321 on the same side is fixedly connected to the anti-plate 1324, and the outward side of the two anti-plates 1324 is fixedly connected to the external pressure cone block 1325, and the external pressure cone block 1325 is clamped with the inner groove of the sliding shaft rod 804.

[0031] In summary, when using the vertical girth welding device for pressure vessels, first pull out the insertion rod 306 and insert it into the placement frame 305, and then move the clamping rod 3010 through the upper side seat 309 and insert it into the other end of the insertion rod 306, then shake the crank 1107 on the side surface of the outer shaft rod 1106 to rotate the active winding plate 1105, and the rotating active winding plate 1105 drives the triangular rod 1111 and the lower shaft rod 1112 to pull the lifting rod 1113 to rise, and the lifting rod 1113 is lifted and rotated together around the connecting rod 1114, wherein the connecting rod 1114 is connected to the connecting rod 1114. The straight rod 1115 sleeved at the other end of 114 pulls the lower pressure rod 1118 to lift up together. As the active winding plate 1105 and the lower pressure rod 1118 rotate together, the trigger rod 1104 and the linkage rod 1119 at the other end also slide a certain angle around the arc groove at the front end of the connected adjustment slide frame 10. After the angle position is determined, the crank handle 1107 is pressed to make the inner pressure rod 1109 enter the crank wheel seat 1110 and then lock it. At the same time, the multi-tooth rotating wheel 1116 can also lock the front end of the main cylinder frame 1117 to prevent the angle adjustment component 11 from loosening. Then, tie the multiple lifting ropes of the crane to the rope openings at the top of the two protective plates 1, and then tie several more lifting ropes to the oval openings of the lifting plate 904. As the lifting ropes are pulled up, the hole-bearing connecting rod 704 and the connecting hole rod 1205 located in the tandem shaft rod 901 are pulled up together with the tandem shaft rod 901. Since the movable shaft rod 801 in the fixed rod sleeve 802 is rotatably connected to the main rod 703, when the tandem shaft rod 901 is pulled up, the other end of the outer rod 803 pulls the sliding shaft rod 804 to slide along the square frame 1204. The trigger frame 1201 is located in the ring rod 701 and the guide rod 702 inside the adjustment slide frame 10 and stops when it rotates to the trigger rod 1104 and the linkage rod 1119, and the trigger pressure rod 1302 located on the upper surface of the trigger frame 1201 contacts the trigger rod 1104 and the side surface of the linkage rod 1119 and is squeezed by force, wherein the bottom of the trigger pressure rod 1302 pushes the middle top rod 1304 and the inner slider 1305 to slide down and disengage from the hole in the top opening of the trigger frame 1201, and then the middle top rod 1304 slides along the slope of the top inner wall of the trigger frame 1201, and the expansion springs 1318 at both ends of the bottom group frame 1317 pull the downward telescopic push rod 1313 and the directional slide plate 1312 to move inward, and the two moving downward telescopic push rods 1313 pull the first group frame 1314 to retract, and after retracting one end, it drives the second group frame 1316 to retract together through the block. When the outer pressure cone block 1325 is fixed to the sliding shaft rod 804, the circle rod 701 also starts to stop rotating. When the main rod 703 is forced to rotate downward, the one-way block 609 at the top will block the reverse gear 403 to prevent rotation, and then the main rod 703 can be put into the pit for construction. After the construction is completed, the handle fixing rod 602 is pulled out from the arc seat 601 and the lever 603 is pulled to move toward the handle fixing rod 602 on the other side. During the rotation of the lever 603, the opposite rotating rod 604 and the rotating gear 605 rotate together, and the L guide plates 606 on both sides of the rotating gear 605 will close to each other until the block 607, and the top opposite moving rod 608 slides along the slideway of the trigger frame 1201. At the same time, the one-way blocks 609 on both sides of the L guide plate 606 are separated from the reverse gear 403, and then the other end of the handle fixing rod 602 is inserted into the slot at the top of the lever 603. Then, the crank handle 1107 is held to pull the outer shaft rod 1106 and the straight rod 1115 out of the cranking wheel seat 1 110 and the cylinder frame 1117 are pulled apart, and then the handle 1309 is held to push the L frame 1306 and the telescopic rod 1310 forward, and the support plate 1324 is closed inward. The sliding shaft rod 804 is restored to the moving state after being disengaged. After being disengaged from the card rod 3010, the insertion rod 306 is pulled out and reinserted into the door pressure frame 304 and the threaded rod 308 is turned to fix the insertion rod 306. As the protective plate 1 is lifted by the lifting rope, it is pushed on both sides by the staff. During the closing process of the protective plates 1 on both sides, the card plate 303 contacts the insertion rod 306 and is lifted until the card slot clamps the insertion rod 306 and fixes it, and then it is placed in the rear of the vehicle and fixed. The closed protective plate 1 reduces the placement volume and the shaking state during transportation is also reduced.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A road construction anti-dumping protection device, comprising: Two protective plates (1), both ends of the two protective plates (1) on opposite sides are fixedly connected to a ladder trough frame (2), and the four ladder trough frames (2) are grouped into two, and the interiors of the left and right ladder trough frames (2) of the same group are respectively fixedly connected to a limiting slide frame (4), an auxiliary slide frame (5) and two adjusting slide frames (10), while the limiting slide frame (4) and the auxiliary slide frame (5) are located in the ladder trough frame (2) on the same side and are opposite to the two adjusting slide frames (10) at the other end, and both ends of the upper surfaces of the two ladder trough frames (2) are set as groove structures; The invention is characterized in that the top of the opposite side of each group of ladder trough frames (2) is respectively fixedly connected with the two ends of the self-locking component (3), the interior of each group of the limiting chute frame (4) and the auxiliary chute frame (5) is rotatably connected with the main rotating support rod (7), the interior of the limiting chute frame (4) is movably connected with the one-way component (6), the interior of each group of the adjusting chute frame (10) is rotatably connected with the stretching support rod (12), and the side surface of the stretching support rod (12) is opened as a through-opening structure, and each group of the main rotating support rod (7) is rotatably connected with the main rotating support rod (7) ) and the opposite ends of the stretching support rod (12) are both rotatably connected through a series assembly (9), and the top of the series assembly (9) is set as an elliptical groove structure, the side surface of the main rotating support rod (7) is connected with a reinforcement rod (8), and the other end of the reinforcement rod (8) is slidably connected in the through-opening slide groove of the stretching support rod (12), and the outward side of each group of the adjustment slide groove frame (10) is fixedly connected with an angle adjustment assembly (11), and the interior of the stretching support rod (12) is movably connected with an expansion assembly (13).

2. A road construction anti-dumping protection device according to claim 1, characterized in that: The self-locking component (3) comprises a front concave frame (301) and a door pressure frame (304), the ends of the front concave frame (301) and the door pressure frame (304) being located opposite to each other are respectively fixedly connected to the top end of the upper surface of the ladder groove frame (2), the groove of the front concave frame (301) is provided with a vertically staggered crossbar structure, the middle part of the side surface of the front concave frame (301) is connected with a shaft rod (302), the side surface of the shaft rod (302) is sleeved with a clamping plate (303), and the end of the clamping plate (303) away from the ladder groove frame (2) is provided with an arc structure, and the lower surface of the clamping plate (303) is provided with a U-shaped groove structure; The upper surface of one end of the door pressing frame (304) connected to the ladder groove frame (2) is fixedly connected to a placement frame (305), and the front end of the door pressing frame (304) and the interior of the placement frame (305) are both set as through-slot structures, the interior of the placement frame (305) is connected with an insertion rod (306), and the other end of the insertion rod (306) is set as a threaded hole structure, the side of the support arm of the door pressing frame (304) facing the interior is fixedly connected to a lower side seat (307), the internal thread of the lower side seat (307) is connected with a threaded rod (308), the top of the ladder groove frame (2) close to the lower side seat (307) is fixedly connected to an upper side seat (309), the interior of the upper side seat (309) is connected with a clamping rod (3010), and the other ends of the threaded rod (308) and the clamping rod (3010) are both movably connected to the threaded hole at the other end of the insertion rod (306).

3. A road construction anti-dumping protection device according to claim 2, characterized in that: The limiting slide frame (4) includes an arc groove recess frame (401), both sides of the arc groove recess frame (401) are fixedly connected to the inner wall of the side plate of the ladder groove frame (2), and the top of the arc groove recess frame (401) is set as four elliptical slideway structures, the interior of the arc groove recess frame (401) is connected with a main shaft rod (402), and the two ends of the main shaft rod (402) located on the inner side surface of the arc groove recess frame (401) are sleeved with reverse gears (403), and the auxiliary slide frame (5) has the same structure except for the reverse gear (403), and the internal structure of the adjustment slide frame (10) is the same as that of the auxiliary slide frame (5).

4. A road construction anti-dumping protection device according to claim 3, characterized in that: The one-way assembly (6) includes two arc seats (601), the other sides of the two arc seats (601) are fixedly connected to the side surface of the ladder groove frame (2) at one connected end, and the two arc seats (601) are located below the front concave frame (301), and the interiors of the two arc seats (601) are plugged with a connecting rod (602), and the side surfaces of the rod bodies of the two connecting rods (602) are set as groove structures. The side surfaces of the connecting rods (602) are movably connected to a shifting rod (603), and the other end of the shifting rod (603) is set as a hexagonal plate structure. The lower surface axis of the hexagonal plate at the other end of the shifting rod (603) is fixedly connected to an opposite rotating rod (604), and the side surface of the opposite rotating rod (604) rotates Connected to the top of the arc groove recess (401), the bottom of the opposing rotating rod (604) is fixedly connected to a rotating gear (605), and the two sides of the rotating gear (605) are respectively rotatably connected to L guide plates (606), and the opposite sides of the two L guide plates (606) are set as rack structures, one end of the long plate of the L guide plate (606) is fixedly connected to a stop block (607), and the upper surfaces of the short plate of the L guide plate (606) and the stop block (607) are fixedly connected to an opposing shift rod (608), and the opposite sides of the short plates of the two L guide plates (606) are fixedly connected to a one-way block (609), and the other end of the one-way block (609) is consistent with the shape of the hole groove of the reverse gear (403).

5. The road construction anti-dumping protection device according to claim 4, characterized in that: The main rotating support rod (7) includes a ring rod (701), one end of the ring rod (701) is sleeved on the side surface of the main shaft rod (402), both sides of the ring rod (701) are fixedly connected with guide rods (702), the side surfaces of the two guide rods (702) are slidably connected in the slideway of the arc groove recess frame (401), the other end of the ring rod (701) is fixedly connected with the main rod (703), the other end of the main rod (703) is fixedly connected with a hole-carrying connecting rod (704), and the stretching support rod (12) is located at one end of the limiting slide frame (4) and has the same structure as the main rotating support rod (7); The reinforcing rod (8) comprises two movable shaft rods (801), the side surfaces of the two movable shaft rods (801) are connected to the side surface of the main rod (703), the outward ends of the two movable shaft rods (801) are fixedly connected to the fixed rod sleeves (802), the side surfaces of the two fixed rod sleeves (802) are fixedly connected to the outer rods (803), the other ends of the two outer rods (803) are fixedly connected to the sliding shaft rods (804), and the opposite ends of the two sliding shaft rods (804) are set as concave structures.

6. The road construction anti-dumping protection device according to claim 5, characterized in that: The series assembly (9) includes a series shaft (901), the side surface of the series shaft (901) is connected to the hole of the hole-carrying connecting rod (704), both ends of the series shaft (901) are fixedly connected to a pressure plate (902), the upper surfaces of the two pressure plates (902) are fixedly connected to a top plate (903), the upper surfaces of the two top plates (903) are fixedly connected to a hanging plate (904), and the interior of the hanging plate (904) is set as an elliptical groove structure.

7. The road construction anti-dumping protection device according to claim 6, characterized in that: The angle adjustment assembly (11) includes a fixed disc (1101), the inner side of the fixed disc (1101) is fixedly connected to one side of the adjustment slide frame (10), the outer side of the fixed disc (1101) is fixedly connected to an outward moving rod (1102), the side surface of the outward moving rod (1102) is movably connected to a driven winding plate (1103), the other end of the driven winding plate (1103) is fixedly connected to a trigger rod (1104), the other end of the side surface of the trigger rod (1104) is fixedly connected to an active winding plate (1105), the other end of the active winding plate (1105) is fixedly connected to an outer rotating shaft rod (1106), the outer rotating shaft rod (1106) is fixedly connected to the outer rotating shaft rod (1106), and the outer rotating shaft rod (1106) is fixedly connected to the outer rotating shaft rod (1106). 106) is fixedly connected to a crank handle (1107) at one end facing outward, the other end of the outer rotating shaft (1106) is fixedly connected to an inner pressure rod (1109), and the side surface of the inner pressure rod (1109) is movably connected to a pressure block structure through a spring, the side surface of the outer rotating shaft (1106) on the opposite side of the active winding plate (1105) and the inner pressure rod (1109) is fixedly connected to a blocking disk (1108), the side surface of the inner pressure rod (1109) is movably connected to a rocking wheel seat (1110), the other end of the rocking wheel seat (1110) is fixedly connected to the other side of the adjusting slide frame (10), and the active winding plate (1105) is fixed on the side facing the rocking wheel seat (1110). A triangular rod (1111) is connected, the other end of the triangular rod (1111) is connected through a lower shaft rod (1112), the other end of the lower shaft rod (1112) is connected through a pull rod (1113), the other end of the pull rod (1113) is sleeved with a connecting rod (1114), the side surface of the other end of the connecting rod (1114) is connected through a straight rod (1115), the side surface of the straight rod (1115) is connected through a multi-toothed rotating wheel (1116), one end of the straight rod (1115) extending to the multi-toothed rotating wheel (1116) is sleeved with a drum rack (1117), and the drum rack (1117) is set to the multi-toothed rotating wheel (1116) at one end. The straight rod (1115) has the same tooth hole structure as the wheel (1116), the side surface of the other end of the straight rod (1115) is sleeved with a lower pressure rod (1118), the other end of the lower pressure rod (1118) is fixedly connected to a linkage rod (1119), the other end of the side surface of the linkage rod (1119) is fixedly connected to a linkage winding plate (1120), the other end of the linkage winding plate (1120) is connected through a linkage shift rod (1121), the linkage shift rod (1121) extends to one end of the linkage winding plate (1120) and is fixedly connected to a linkage disc (1122), and the opposite sides of the cylinder frame (1117) and the linkage disc (1122) are fixedly connected to the two sides of the adjustment slide frame (10).

8. The road construction anti-dumping protection device according to claim 7, characterized in that: The stretching support rod (12) comprises a trigger frame (1201), one end of the trigger frame (1201) is fixedly connected to the ring rod (701) of the stretching support rod (12), the other end of the trigger frame (1201) is fixedly connected to the middle rod (1202), the other end of the middle rod (1202) is fixedly connected to the tube rod (1203), both sides of the elliptical groove of the tube rod (1203) are fixedly connected to the square frame (1204), the other end of the tube rod (1203) is fixedly connected to the connecting hole rod (1205), the interior of the trigger frame (1201) is set as a hollow structure, and the top of the hollow groove of the trigger frame (1201) is set as a trapezoidal slide groove structure.

9. The road construction anti-dumping protection device according to claim 8, characterized in that: The expansion assembly (13) includes a nest (1301) and a pull handle (1309), the lower surface of the nest (1301) is fixedly connected to the top slot of the trigger frame (1201), the interior of the nest (1301) is connected with a trigger pressure rod (1302), and the top of the trigger pressure rod (1302) is set as a pressure cap structure, and the top of the trigger pressure rod (1302) is set as an upper inclined block structure, and the lower surface of the pressure cap of the trigger pressure rod (1302) is connected to the nest (1301). 1) is fixedly connected to the upper surface of the upper spring (1303), and the inner part of the upper spring (1303) is sleeved on the side surface of the trigger pressure rod (1302), one end of the pull handle (1309) is fixedly connected to the upper push rod (1307), and the upper push rod (1307) is set as a telescopic structure, the side surface of the upper push rod (1307) is slidably connected to the lower surface of the trigger frame (1201), and the other end of the upper push rod (1307) is connected to the L frame (1306), and An upper push rod (1307) extends to one end of the L frame (1306) and is sleeved with a medium pressure spring (1308). The other ends of the upper push rod (1307) and the medium pressure spring (1308) are fixedly connected to an inner slider (1305), and one end of the inner slider (1305) is slidably connected to the inside of the L frame (1306). The other end of the inner slider (1305) is fixedly connected to the middle push rod (1304), and the other end of the middle push rod (1304) is fixedly connected to the lower inclined block structure. The upper inclined block of the trigger pressure rod (1302) is built on the upper surface of the lower inclined block of the middle top rod (1304); the side surface of the L frame (1306) is fixedly connected to a telescopic rod (1310); the other end of the telescopic rod (1310) is fixedly connected to a directional slide (1312); the side surface of the telescopic rod (1310) is sleeved with a connecting spring (1311); and the upper and lower ends of the other side of the directional slide (1312) are fixedly connected to a downward telescopic push rod (1313); The side surfaces of the two downward-pressing telescopic push rods (1313) are fixedly connected to the first frame (1314), and one end of the downward-pressing telescopic push rods (1313) extending to the first frame (1314) is connected to the second frame (1316), and one end of the two downward-pressing telescopic push rods (1313) extending to the second frame (1316) is fixedly connected to the bottom frame (1317), and the bottom frame (1317) is fixedly connected to the middle of one side of the first frame (1314). The expansion slide bar (1315) is provided, and the first frame (1314) and the second frame (1316) are slidably connected to the side surface of the expansion slide bar (1315), and the downward-pressing telescopic push rod (1313) is located on the side surface of the first frame (1314) and the second frame (1316) and is set as a fixed block structure. At the same time, the downward-pressing telescopic push rod (1313) extends to the side surface of the second frame (1316) and is sleeved with an expansion spring (1318). The first frame (1314) and the second frame (1316) are provided on both sides. The upper end is fixedly connected to an upper shaft seat (1319), and the upper and lower ends of the upper shaft seat (1319) are movably connected to a middle shaft seat (1321) through a long rod (1320). The other side of the middle shaft seat (1321) is movably connected to a lower shaft seat (1322) through a long rod (1320). The opposite sides of the two lower shaft seats (1322) are fixedly connected to the two sides of the second group frame (1316). The second group frame (1316) and the two sides of the bottom group frame (1317) are fixed. An outward expansion component (1323) is connected, and the interior of the outward expansion component (1323) includes an upper shaft seat (1319), a long rod (1320), a middle shaft seat (1321) and a lower shaft seat (1322), and the outward side of the two middle shaft seats (1321) on the same side is fixedly connected to a support plate (1324), and the outward side of the two support plates (1324) is fixedly connected to an external pressure cone block (1325), and the external pressure cone block (1325) is clamped with the inner groove of the sliding shaft rod (804).

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