Mounting trolley for mounting corrugated beam guardrail

Abstract

The utility model relates to a mounting trolley for mounting a wave-shaped beam guardrail, and belongs to the technical field of guardrail mounting. Comprising a bottom plate, a distance adjusting mechanism is arranged at the front end of the bottom plate and comprises a horizontally-arranged telescopic rod, and a positioning fork is arranged at the end of the telescopic rod. A lifting frame is arranged on the upper end face of the bottom plate through a lifting mechanism, a telescopic platform is slidably arranged at the upper end of the lifting frame, and a turnover frame is arranged at the upper end of the telescopic platform through an angle adjusting mechanism. The problem that an existing corrugated beam guardrail is low in installation efficiency is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to guardrail installation technical field, concretely relates to a kind of installation trolley for wave-shaped beam guardrail installation. BACKGROUND

[0002] At present, the installation process of wave-shaped beam guardrail generally relies on heavy manual handling and fixing operation, since two adjacent guardrails are fixed on the same post by sharing two connecting bolts, the two adjacent guardrails cannot be installed independently during installation, and after the installation of one end of the previous guardrail is completed, the other end of the previous guardrail must be installed and fastened simultaneously with the front end of the rear guardrail. In addition, the guardrail itself is heavy and long, and the weight of a 4.32m long wave-shaped beam stainless steel guardrail is about 94kg. The traditional installation method often requires at least four people to cooperate: one person is responsible for lifting the adjacent end of the installed guardrail and the uninstalled guardrail, two people are responsible for lifting the guardrail to be installed, and one person is responsible for tightening the bolt. This installation method highly depends on manpower and has high labor intensity, which not only seriously restricts the installation efficiency, but also is difficult to ensure the stability and consistency of installation quality. SUMMARY

[0003] The utility model overcomes the shortcomings of the prior art and provides an installation trolley for wave-shaped beam guardrail installation, which solves the problem of low installation efficiency of the current wave-shaped beam guardrail.

[0004] To achieve the above purpose, the utility model is implemented by the following technical solutions.

[0005] An installation trolley for wave-shaped beam guardrail installation includes a bottom plate, and a roller is arranged on the lower end surface of the bottom plate; a spacing adjustment mechanism is arranged on the front end of the bottom plate, and the spacing adjustment mechanism includes a horizontally arranged telescopic rod, and a positioning fork is arranged on the end of the telescopic rod; a lifting frame is arranged on the upper end surface of the bottom plate through a lifting mechanism, a telescopic platform is slidably arranged on the upper end of the lifting frame, and a turnover frame is arranged on the upper end of the telescopic platform through an angle adjustment mechanism.

[0006] Further, a roller is arranged on each of the four corners of the lower end surface of the bottom plate, and the roller is a universal wheel with a limiting function; a U-shaped handle is fixedly arranged on the rear edge of the upper end surface of the bottom plate; two left-right symmetrical guide wheels are rotatably arranged on the front surface of the bottom plate.

[0007] Further, the telescopic rod is horizontally arranged along the left-right direction, and comprises a fixed rod and a movable rod, the movable rod is slidingly inserted into the fixed rod; a locking bolt is screwed on the side wall of the fixed rod; the end of the fixed rod away from the movable rod is fixedly arranged on the front side of the upper end surface of the bottom plate, the end of the movable rod away from the fixed rod is fixedly arranged with the positioning fork, the positioning fork is a semi-circular ring structure, and the semi-circular ring opening of the positioning fork faces the front side.

[0008] Further, the lifting mechanism comprises a lower slide groove frame and an upper slide groove frame; a lower slide groove frame is arranged on each of the left and right sides of the upper end surface of the bottom plate, and a lower slide groove is arranged on each of the side end surfaces of the two lower slide groove frames close to each other; the lifting frame is arranged above the bottom plate, an upper slide groove frame is arranged on each of the left and right sides of the lower end surface of the lifting frame, and an upper slide groove is arranged on each of the side end surfaces of the two upper slide groove frames close to each other.

[0009] Further, the lifting mechanism further comprises a first connecting rod and a second connecting rod; between the bottom plate and the lifting frame, two groups of symmetric X-shaped connecting rod groups are arranged, each group of connecting rod groups comprises a first connecting rod and a second connecting rod which are hingedly connected, a first connecting rod is rotatably inserted between the lower ends of the two first connecting rods, and the two ends of the first connecting rod are fixedly connected with the left and right lower slide groove frames; a second connecting rod is rotatably inserted between the lower ends of the two second connecting rods, and the two ends of the second connecting rod are rotatably provided with a pulley, and the two pulleys are rotatably arranged in the two lower slide grooves; a third connecting rod is rotatably inserted between the upper ends of the two second connecting rods, and the two ends of the third connecting rod are fixedly connected with the left and right upper slide groove frames; a fourth connecting rod is rotatably inserted between the upper ends of the two first connecting rods, and the two ends of the fourth connecting rod are rotatably provided with a sliding block, and the two sliding blocks are slidingly arranged in the two upper slide grooves.

[0010] Further, the lifting mechanism further comprises a lifting screw, a first hinge seat is fixedly arranged on the middle of each of the front and rear sides of the upper end surface of the bottom plate, a lifting screw is rotatably arranged between the two first hinge seats, the rear end of the lifting screw is fixedly arranged with a first handle, a connecting seat is fixedly arranged on the middle of the first connecting rod and the second connecting rod, the connecting seat on the first connecting rod is rotatably arranged on the outer side of the lifting screw, and the connecting seat on the second connecting rod is screwed on the outer side of the lifting screw.

[0011] Further, a fixed platform is fixedly arranged at the upper end surface of the lifting frame, two support wheels are rotatably arranged at the left and right end surfaces of the fixed platform respectively, and a circular clamping groove is arranged in the middle of the outer cylindrical surface of the support wheel; the telescopic platform is a U-shaped plate structure with an opening downward, comprising a horizontal section and two vertical sections fixedly arranged at the left and right sides of the lower end surface of the horizontal section; a support groove is arranged at the side end surface of each vertical section; a clamping strip extending horizontally forward and backward is fixedly arranged at the lower end surface of each support groove; a limiting plate is fixedly arranged at the front and rear ends of each support groove; the telescopic platform is located outside the fixed platform, and the support wheels at the left and right sides of the fixed platform are fixedly arranged inside the two support grooves, and the clamping strip inside the support groove is clamped inside the clamping groove outside the support wheel.

[0012] Further, the front side of the lower end surface of the turnover frame is rotatably connected to the front side of the upper end surface of the telescopic platform through a hinge rod, and a baffle is fixedly arranged at the front side edge of the upper end surface of the turnover frame.

[0013] Further, the angle adjusting mechanism comprises a turnover screw, a guide rod, a third connecting rod, a guide seat, a sliding seat and a fifth connecting rod; a fifth connecting rod is fixedly arranged in the middle of the lower end surface of the turnover frame, a second hinge seat is fixedly arranged at the middle of the front and rear side edges of the upper end surface of the telescopic platform, a horizontal turnover screw is rotatably arranged between the two second hinge seats, and a second handle is fixedly arranged at the rear end of the turnover screw; two left-right symmetrical guide rods are fixedly arranged at the upper end surface of the telescopic platform and arranged horizontally along the front and rear directions; a guide seat is slidably sleeved on the outside of each guide rod, and a sliding seat is screwed on the outside of the turnover screw; a group of third connecting rods are hinged between the guide seat and the fifth connecting rod, and a group of third connecting rods are hinged between the sliding seat and the fifth connecting rod, and the lengths of the three groups of third connecting rods are the same.

[0014] The beneficial effects of the utility model relative to the prior art are:

[0015] The utility model provides a mounting trolley for wave beam guardrail installation, solves the problem of power difficulty through mechanical auxiliary means, does not need to use electricity, two groups of the device work simultaneously, can lift two adjacent guardrails, and alternately advances when advancing, reduces the installation team from 4 people to 2 people, greatly reduces the physical labor intensity of installation workers, the mounting trolley can easily bear and stably move the guardrail, reduces the direct dependence on a large number of manpower, makes the installation process more smooth and efficient, the structure design fully considers the operation convenience and safety, ensures that the installation speed is improved, and the safety and health of workers are effectively guaranteed, and the universal wheel with limiting function is equipped, which facilitates the movement and fixation of the guardrail. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained in detail below in combination with the drawings:

[0017] Figure 1 It is the whole three-dimensional schematic of the utility model Figure One ;

[0018] Figure 2 It is the side view of the whole of the utility model;

[0019] Figure 3 It is the top view of the whole of the utility model;

[0020] Figure 4 It is the A-A section view in Figure 3 ;

[0021] Figure 5 It is the B-B section view in Figure 3 ;

[0022] Figure 6 It is the whole three-dimensional schematic of the utility model Figure Two ;

[0023] Figure 7 It is the whole three-dimensional schematic of the utility model Figure Three ;

[0024] Figure 8 It is the whole three-dimensional schematic of the utility model Figure Four ;

[0025] Figure 9 It is the working schematic of the utility model Figure One ;

[0026] Figure 10 It is the working schematic of the utility model Figure Two ;

[0027] Wherein, 1 is bottom plate, 2 is gyro wheel, 3 is telescopic rod, 4 is positioning fork, 5 is lifting mechanism, 6 is lifting frame, 7 is telescopic platform, 8 is angle adjusting mechanism, 9 is turnover frame, 10 is push hand, 11 is guide wheel, 12 is fixed rod, 13 is moving rod, 14 is lower side slide groove frame, 15 is upper side slide groove frame, 16 is first connecting rod, 17 is second connecting rod, 18 is first connecting rod, 19 is second connecting rod, 20 is pulley, 21 is third connecting rod, 22 is fourth connecting rod, 23 is sliding block, 24 is lifting screw, 25 is first handle, 26 is connecting seat, 27 is fixed platform, 28 is support wheel, 29 is support groove, 30 is baffle, 31 is fifth connecting rod, 32 is turnover screw, 33 is guide rod, 34 is guide seat, 35 is sliding seat, 36 is third connecting rod, 37 is guardrail plate, 38 is stand column. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects of the utility model to be solved clearer and more apparent, the utility model is further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model. The technical solutions of the utility model are described in detail below in combination with embodiments and drawings, but the protection scope is not limited thereby.

[0029] As shown in Figure 1 The utility model provides a mounting trolley for wave beam guardrail installation, including bottom plate 1, bottom plate 1 lower end face is provided with the gyro wheel 2;Spacing adjustment mechanism is provided with the spacing adjustment mechanism at the front end of bottom plate 1, the spacing adjustment mechanism includes a horizontally arranged telescopic link 3, and the telescopic link 3 end is provided with a positioning fork 4;Bottom plate 1 upper end face is provided with lifting frame 6 through lifting mechanism 5, and the upper end of lifting frame 6 is slidably provided with telescopic platform 7, and the upper end of telescopic platform 7 is provided with turnover frame 9 through angle adjustment mechanism.

[0030] The bottom plate 1 is horizontally arranged square plate structure, and one gyro wheel 2 is arranged on each of the four corners of the lower end face of the bottom plate 1, the gyro wheel 2 is a universal wheel with limiting function. A U-shaped push handle 10 is fixedly arranged at the rear edge of the upper end face of the bottom plate 1, and the mounting trolley is moved by the push handle 10. Two left and right symmetrical guide wheels 11 are rotatably arranged on the front side of the bottom plate 1, and the axes of the two guide wheels 11 are arranged at an included angle with the vertical line. When the mounting trolley moves to the installation position, the two guide wheels 11 are in contact with the curb, so that the mounting trolley and the curb maintain a uniform spacing, and the mounting trolley can also prevent the mounting trolley from overturning forward during installation.

[0031] The telescopic link 3 is horizontally arranged along the left-right direction, and the telescopic link 3 includes a fixed rod 12 and a movable rod 13, the movable rod 13 is slidably inserted into the fixed rod 12, a locking bolt is screwed on the side wall of the fixed rod 12, when the locking bolt is loosened, the movable rod 13 can slide in the fixed rod 12, and the length of the telescopic link 3 can be adjusted, when the locking bolt is tightened, the movable rod 13 cannot slide in the fixed rod 12, and the length of the telescopic link 3 is fixed. The end of the fixed rod 12 away from the movable rod 13 is fixedly arranged on the upper end face of the bottom plate 1, and the end of the movable rod 13 away from the fixed rod 12 is fixedly arranged with the positioning fork 4, the positioning fork 4 is a semicircular ring structure, and the semicircular ring opening of the positioning fork 4 faces the front side.

[0032] The lifting mechanism 5 includes a lower side sliding groove frame 14, an upper side sliding groove frame 15, a first connecting rod 16, a second connecting rod 17, a lifting screw 24 and a first handle 25.

[0033] A lower side sliding groove frame 14 is arranged on each of the left and right sides of the upper end surface of the base plate 1, and a lower side sliding groove is arranged on each of the side end surfaces of the two lower side sliding groove frames 14 that are close to each other, and the lower side sliding groove extends horizontally along the front-rear direction. The lifting frame 6 is a square plate structure arranged horizontally, and the lifting frame 6 is arranged above the base plate 1, and an upper side sliding groove frame 15 is arranged on each of the left and right sides of the lower end surface of the lifting frame 6, and an upper side sliding groove is arranged on each of the side end surfaces of the two upper side sliding groove frames 15 that are close to each other, and the upper side sliding groove extends horizontally along the front-rear direction.

[0034] A left and right pair of symmetric X-shaped linkage groups are arranged between the base plate 1 and the lifting frame 6, and each linkage group includes a first linkage 16 and a second linkage 17 that are hingedly connected to each other, and the middle part of the first linkage 16 is hingedly connected to the middle part of the second linkage 17. A same first connecting rod 18 is rotatably inserted between the lower ends of the two first linkages 16, the first connecting rod 18 is arranged horizontally along the left-right direction, and the two ends of the first connecting rod 18 are fixedly connected to the left and right lower side sliding groove frames 14, respectively. A same second connecting rod 19 is rotatably inserted between the lower ends of the two second linkages 17, the second connecting rod 19 is arranged horizontally along the left-right direction, and the two ends of the second connecting rod 19 are rotatably provided with a pulley 20, respectively, and the two pulleys 20 are rotatably arranged inside the two lower side sliding grooves, respectively. A same third connecting rod 21 is rotatably inserted between the upper ends of the two second linkages 17, the third connecting rod 21 is arranged horizontally along the left-right direction, and the two ends of the third connecting rod 21 are fixedly connected to the left and right upper side sliding groove frames 15, respectively. A same fourth connecting rod 22 is rotatably inserted between the upper ends of the two first linkages 16, the fourth connecting rod 22 is arranged horizontally along the left-right direction, and the two ends of the fourth connecting rod 22 are rotatably provided with a sliding block 23, respectively, and the two sliding blocks 23 are slidably arranged inside the two upper side sliding grooves, respectively, and the upper and lower side end surfaces of the sliding block 23 are slidably in contact with the top surface and the bottom surface of the upper side sliding groove, respectively.

[0035] A first hinge seat is fixedly arranged on the middle part of each of the front and rear side edges of the upper end surface of the base plate 1, a lifting screw 24 is rotatably arranged between the two first hinge seats, the lifting screw 24 is arranged horizontally along the front-rear direction, a first handle 25 is fixedly arranged on the rear end of the lifting screw 24, and the first handle 25 drives the lifting screw 24 to rotate. A connecting seat 26 is fixedly arranged on the middle part of the first connecting rod 18 and the second connecting rod 19, respectively, the connecting seat 26 on the first connecting rod 18 is rotatably arranged on the outer side of the lifting screw 24, and the connecting seat 26 on the second connecting rod 19 is screwed to the outer side of the lifting screw 24.

[0036] When the lifting screw 24 is driven to rotate by the first handle 25, the second connecting rod 19 is driven to slide forward and backward because the lifting screw 24 is hinged to the connecting seat 26 on the second connecting rod 19, the connecting seat 26 drives the second connecting rod 19 to slide forward and backward, the pulley 20 is driven to roll forward and backward inside the lower slide groove, thus the lower end of the second connecting rod 17 moves forward and backward, and the sliding blocks 23 at the two ends of the fourth connecting rod 22 slide inside the upper slide groove, thereby adjusting the angle between the first connecting rod 16 and the second connecting rod 17. When the angle between the first connecting rod 16 and the second connecting rod 17 becomes larger, the overall height of the lifting frame 6 decreases; when the angle between the first connecting rod 16 and the second connecting rod 17 becomes smaller, the overall height of the lifting frame 6 increases.

[0037] A fixed platform 27 is fixedly arranged at the upper end face of the lifting frame 6, the fixed platform 27 is a horizontally arranged square block structure, two front and rear support wheels 28 are rotatably arranged on the left and right side end faces of the fixed platform 27 respectively, and a circular annular clamping groove is arranged in the outer side cylindrical surface of the support wheel 28.

[0038] The telescopic platform 7 is a U-shaped plate structure with an opening downward, including a horizontal section and two vertical sections, and the two vertical sections are fixedly arranged on the left and right sides of the lower end face of the horizontal section. A support groove 29 is arranged on one side end face of the two vertical sections respectively, the support groove 29 extends horizontally along the front and rear direction; a front and rear horizontally extending clamping strip is fixedly arranged on the lower end face of each support groove 29; and a limiting plate is fixedly arranged at the front and rear ends of each support groove 29 respectively.

[0039] The telescopic platform 7 is located outside the fixed platform 27, the support wheels 28 on the left and right sides of the fixed platform 27 are fixedly arranged inside the two support grooves 29 respectively, and the clamping strips inside the support grooves 29 are clamped inside the clamping grooves outside the support wheels 28. When the telescopic platform 7 is pushed forward and backward, the support wheels 28 on the fixed platform 27 roll inside the support grooves 29 of the telescopic platform 7, the clamping strips and the clamping grooves of the support wheels 28 are clamped with each other, thereby ensuring the stability of the telescopic platform 7 when sliding forward and backward.

[0040] The turnover frame 9 is a square plate structure, the front side of the lower end face of the turnover frame 9 is rotatably connected with the front side of the upper end face of the telescopic platform 7 through a hinge rod, and the hinge rod is horizontally arranged along the left and right direction. A baffle 30 is fixedly arranged at the front side edge of the upper end face of the turnover frame 9, and the baffle 30 is perpendicular to the turnover frame 9.

[0041] The angle adjusting mechanism 8 includes a turnover screw 32, a guide rod 33, a third connecting rod 36, a guide seat 34, a sliding seat 35, and a fifth connecting rod 31.

[0042] A fifth connecting rod 31 is fixedly arranged in the middle of the lower end surface of the turnover frame 9 and horizontally arranged along the left-right direction. A second hinge seat is fixedly arranged on the middle of the front and rear side edges of the upper end surface of the telescopic platform 7, and a front and rear horizontal turnover screw rod 32 is rotatably arranged between the two second hinge seats. A second handle is fixedly arranged on the rear end of the turnover screw rod 32. Two left-right symmetrical guide rods 33 are fixedly arranged on the upper end surface of the telescopic platform 7 and located on the left and right sides of the turnover screw rod 32. The guide rods 33 are horizontally arranged along the front and rear direction. A guide seat 34 is slidably sleeved on the outer side of each guide rod 33, and a sliding seat 35 is screwed on the outer side of the turnover screw rod 32. A set of third connecting rods 36 is hingedly connected between the guide seat 34 and the fifth connecting rod 31, and a set of third connecting rods 36 is hingedly connected between the sliding seat 35 and the fifth connecting rod 31. The three sets of third connecting rods 36 are of the same length.

[0043] When the turnover screw rod 32 is driven to rotate through the second handle, the sliding seat 35 is driven to slide forward and backward due to the screwing of the turnover screw rod 32 and the sliding seat 35, and the lower end of the third connecting rod 36 is driven to slide forward and backward by the forward and backward sliding of the sliding seat 35, so that the angle between the third connecting rod 36 and the turnover frame 9 is adjusted. When the angle between the third connecting rod 36 and the turnover frame 9 becomes larger, the turnover frame 9 gradually rotates to the vertical state; when the angle between the third connecting rod 36 and the turnover frame 9 becomes smaller, the turnover frame 9 gradually rotates to the horizontal state.

[0044] The working principle of the utility model is:

[0045] When installing the guard plate 37, first place the guard plate 37 on the turnover frame 9, and then fix the guard plate 37 and the turnover frame 9 through the rope. Then adjust the length of the telescopic rod 3 according to the distance between the two upright columns 38. Then push the installation trolley as a whole to move between the two upright columns 38, so that the positioning fork 4 at the end of the telescopic rod 3 is clamped with one side of the upright column 38, so as to ensure that the installation trolley is located in the middle of the two upright columns 38. In the process of clamping the positioning fork 4 and the upright column 38, the guide wheel 11 at the front end of the installation trolley is in contact with the curbstone.

[0046] Then the first handle 25 is hand turned to adjust the height of the lifting frame 6. Then the second handle is hand turned to adjust the angle of the turnover frame 9 until the guard plate 37 is adjusted to the appropriate angle. Then the telescopic platform 7 is pushed forward to move the turnover frame 9 and the guard plate 37 as a whole forward until the head end of the guard plate 37 is connected with the tail end of the previous guard plate 37 and the tail end of the guard plate 37 is connected with the column 38 on the rear side. The head end of the guard plate 37 and the tail end of the previous guard plate 37 are bolted to the column on the front side. Then the next installation trolley is used to connect the head end of the next guard plate 37 with the tail end of the guard plate 37 and bolt the tail end of the guard plate 37 with the head end of the next guard plate 37 to the next column.

[0047] The above process is repeated until all the guard plates 37 are installed.

[0048] It is apparent for a person skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A mounting trolley for use in the installation of a waveline barrier, characterised in that: The utility model provides a kind of lifting platform, including bottom plate (1), bottom plate (1) lower end surface is provided with gyro wheel (2);Spacing adjustment mechanism is provided at the front end of bottom plate (1), the spacing adjustment mechanism includes a horizontally arranged telescopic rod (3), and the end of telescopic rod (3) is provided with a positioning fork (4);Lifting frame (6) is provided on the upper end surface of bottom plate (1) by lifting mechanism (5), and the upper end of lifting frame (6) is slidably provided with telescopic platform (7), and the upper end of telescopic platform (7) is provided with turnover frame (9) by angle adjustment mechanism.

2. The installation dolly for installation of a corrugated beam guardrail according to claim 1, wherein: One gyro wheel (2) is respectively arranged on the four corners of the lower end surface of bottom plate (1), and the gyro wheel (2) is a universal wheel with limiting function;A U-shaped push hand (10) is fixedly arranged at the rear edge of the upper end surface of bottom plate (1);Two left-right symmetrical guide wheels (11) are rotatably arranged on the front side surface of bottom plate (1).

3. The installation dolly for installation of a corrugated beam guardrail according to claim 1, wherein: The telescopic rod (3) is horizontally arranged along the left-right direction, and the telescopic rod (3) includes a fixed rod (12) and a movable rod (13), the movable rod (13) is slidably inserted into the fixed rod (12), and a locking bolt is screwed on the side wall of the fixed rod (12). The end of the fixed rod (12) away from the movable rod (13) is fixedly arranged on the upper end surface of the bottom plate (1), and the end of the movable rod (13) away from the fixed rod (12) is fixedly provided with the positioning fork (4), and the positioning fork (4) is a semicircular ring structure, and the semicircular ring opening of the positioning fork (4) faces the front side.

4. The installation dolly for installation of a corrugated beam guardrail according to claim 1, wherein: The lifting mechanism (5) includes a lower slide groove frame (14) and an upper slide groove frame (15), and the lower slide groove frame (14) is arranged on the left and right sides of the upper end surface of the bottom plate (1), and the lower slide groove frame (14) is provided with a lower slide groove on the side end surface close to each other, and the lifting frame (6) is arranged above the bottom plate (1), and the upper slide groove frame (15) is arranged on the left and right sides of the lower end surface of the lifting frame (6), and the upper slide groove frame (15) is provided with an upper slide groove on the side end surface close to each other.

5. The installation dolly for use in installing a wavy-beam guardrail according to claim 4, characterized by: The lifting mechanism (5) further comprises a first connecting rod (16) and a second connecting rod (17); between the bottom plate (1) and the lifting frame (6), two groups of symmetrical X-shaped connecting rod groups are arranged, each group of connecting rod groups comprising the first connecting rod (16) and the second connecting rod (17) hingedly connected to each other, the lower ends of the two first connecting rods (16) being rotatably connected to the same first connecting rod (18), the two ends of the first connecting rod (18) being fixedly connected to the lower side sliding groove frames (14) on the left and right sides respectively; the lower ends of the two second connecting rods (17) being rotatably connected to the same second connecting rod (19), the two ends of the second connecting rod (19) being rotatably provided with a pulley (20) respectively, the two pulleys (20) being rotatably arranged in the two lower side sliding grooves respectively; the upper ends of the two second connecting rods (17) being rotatably connected to the same third connecting rod (21), the two ends of the third connecting rod (21) being fixedly connected to the upper side sliding groove frames (15) on the left and right sides respectively; the upper ends of the two first connecting rods (16) being rotatably connected to the same fourth connecting rod (22), the two ends of the fourth connecting rod (22) being rotatably provided with a sliding block (23) respectively, the two sliding blocks (23) being slidingly arranged in the two upper side sliding grooves respectively.

6. The installation dolly for use in installation of a corrugated beam guardrail according to claim 5, characterized by: The lifting mechanism (5) further comprises a lifting screw (24), a first hinge seat being fixedly arranged on the middle of the upper end face of the bottom plate (1) on the front and rear sides respectively, the two first hinge seats being rotatably provided with the lifting screw (24) therebetween, the rear end of the lifting screw (24) being fixedly provided with a first handle (25), a connecting seat (26) being fixedly arranged on the middle of the first connecting rod (18) and the second connecting rod (19) respectively, the connecting seat (26) on the first connecting rod (18) being rotatably arranged on the outer side of the lifting screw (24), the connecting seat (26) on the second connecting rod (19) being screwed to the outer side of the lifting screw (24).

7. The installation dolly for use in installing a wavy-beam guardrail according to claim 1, characterized by: A fixed platform (27) is fixedly arranged on the upper end face of the lifting frame (6), two front and rear support wheels (28) being rotatably arranged on the left and right end faces of the fixed platform (27) respectively, a circular annular clamping groove being arranged in the middle of the outer cylindrical surface of the support wheel (28); the telescopic platform (7) is a U-shaped plate structure with an opening downward, comprising a horizontal section and two vertical sections, the two vertical sections being fixedly arranged on the left and right sides of the lower end face of the horizontal section; a support groove (29) being arranged on one side end face of the two vertical sections which are close to each other respectively; a clamping strip extending horizontally forward and backward being fixedly arranged on the lower end face of each support groove (29); a limiting plate being fixedly arranged on the front and rear ends of each support groove (29) respectively; the telescopic platform (7) is located on the outer side of the fixed platform (27), the support wheels (28) on the left and right sides of the fixed platform (27) being fixedly arranged in the two support grooves (29) respectively, and the clamping strips in the support grooves (29) being clamped in the clamping grooves on the outer sides of the support wheels (28).

8. The installation dolly for use in installing a wavy-beam guardrail according to claim 1, characterized by: The front side of the lower end surface of the turnover frame (9) is rotationally connected with the front side of the upper end surface of the telescopic platform (7) through a hinge rod, and a baffle (30) is fixedly arranged at the front edge of the upper end surface of the turnover frame (9).

9. The installation dolly for use in installing a wavy-beam guardrail according to claim 8, characterized by: The angle adjusting mechanism (8) comprises a turnover screw rod (32), a guide rod (33), a third connecting rod (36), a guide seat (34), a sliding seat (35) and a fifth connecting rod (31). A fifth connecting rod (31) is fixedly arranged in the middle of the lower end surface of the turnover frame (9), a second hinge seat is fixedly arranged at the middle of each of the front and rear edges of the upper end surface of the telescopic platform (7), a front and rear horizontal turnover screw rod (32) is rotationally arranged between the two second hinge seats, and a second handle is fixedly arranged at the rear end of the turnover screw rod (32). Two left and right symmetrical guide rods (33) are fixedly arranged on the upper end surface of the telescopic platform (7) and are arranged horizontally along the front and rear directions. A guide seat (34) is slidably sleeved on the outer side of each guide rod (33), and a sliding seat (35) is screwed on the outer side of the turnover screw rod (32). A set of third connecting rods (36) are hingedly connected between the guide seat (34) and the fifth connecting rod (31), and a set of third connecting rods (36) are hingedly connected between the sliding seat (35) and the fifth connecting rod (31), and the three sets of third connecting rods (36) have the same length.

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