Walking type lifting aerial work platform

Abstract

The utility model relates to the technical field of aerial work platforms, and discloses a walking type lifting aerial work platform which comprises a walking vehicle body, the top of the walking vehicle body is fixedly connected with a supporting platform, a bearing frame is arranged above the supporting platform, and a shear fork frame is arranged between the bearing frame and the supporting platform. The four first oil cylinders are evenly arranged on the periphery of the shear fork frame. The shearing fork frame can be guided through the guide assembly, and the working stability of the first oil cylinder is improved; the whole standing platform can be driven to horizontally slide towards one side far away from the bearing frame through the push-pull assembly, so that a worker can conveniently adjust the position of the standing platform in a targeted manner according to actual requirements; and through the clamping assembly and the adjusting assembly, the first baffle and the second baffle can be rapidly folded and stored after high-altitude operation is completed, and therefore the overall occupied area of the standing platform is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to high altitude operation platform technical field, concretely is a walking type lifting high altitude operation platform. BACKGROUND

[0002] The high altitude operation platform is a kind of equipment specially designed for high altitude operation, it includes scissor type high altitude operation platform, curved arm type high altitude operation platform, straight arm type high altitude operation platform and multiple types, benefit from its efficiency, flexibility, multifunctionality and other advantages, it is widely used in building, equipment maintenance, installation and building cleaning and multiple fields, not only greatly promotes the production efficiency improvement, also ensures the safety of high altitude operation personnel.

[0003] The existing walking type lifting high altitude operation platform when using, the platform for staff standing at top is mostly fixed design, during high altitude operation, standing platform can not be well adjusted according to the actual demand of staff horizontal transverse position, this makes high altitude operation platform when facing some narrow upper wide slope type structure adaptability, flexibility is poor, this is not conducive to the high altitude operation, also brings certain security risk to high altitude operation. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a walking type lifting high altitude operation platform to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a walking type lifting high altitude operation platform, comprising:

[0006] Walking car body, the walking car body top is fixedly connected with support platform, the support platform upper portion is equipped with bearing frame, and the bearing frame is equipped with scissor fork between support platform;

[0007] Four first oil cylinders are evenly arranged at the periphery of the scissor fork, the first oil cylinder is connected with the support platform and the bearing frame respectively, and the scissor fork outside is equipped with the guide assembly that can make the first oil cylinder work stable;

[0008] Standing platform is arranged above the bearing frame, the bearing frame is equipped with the push-pull assembly that can make the standing platform reciprocating sliding in the inside, the both sides of the standing platform are equipped with the first baffle, and the both ends of the first baffle are equipped with the second baffle;

[0009] Clamping assembly is arranged outside the second baffle, the outside of the standing platform is equipped with the adjusting assembly that can facilitate the folding work of the first baffle, and the bottom of the standing platform is equipped with the support assembly for improving the bearing strength of the bearing frame.

[0010] Preferably, the guide assembly comprises two first strip seats arranged at the two ends of the scissor frame, one of the first strip seats is fixedly installed at the bottom of the supporting frame, and the other first strip seat is fixedly installed at the top of the supporting platform, sliding columns are arranged at the two sides of the first strip seat, side plates are fixedly connected to the two ends of the sliding column, one side of the side plate is connected with the first strip seat, moving blocks are slidably connected to the outer sides of the two ends of the sliding column, U-shaped seats are fixedly connected to the outer sides of the moving blocks, the scissor frame is rotatably connected with the two U-shaped seats through rotating shafts, and first sliding blocks are fixedly connected to one side of the moving block.

[0011] Preferably, the push-pull assembly comprises an L-shaped plate fixedly installed at the bottom of the standing platform, a second strip seat is fixedly connected to the bottom of the L-shaped plate, third sliding blocks are fixedly connected to the two sides of the second strip seat, third sliding grooves corresponding to the third sliding blocks are formed in the inner wall of the supporting frame, the third sliding blocks are located in the third sliding grooves, limit blocks are fixedly connected to one end of the third sliding block, a second sliding block is fixedly connected to the bottom of the second strip seat, a second sliding groove corresponding to the second sliding block is formed in the bottom of the inner cavity of the supporting frame, the second sliding block is located in the second sliding groove, two positioning grooves are symmetrically formed in the bottom of the inner cavity of the supporting frame, and second oil cylinders are fixedly installed in the positioning grooves.

[0012] Preferably, the clamping assembly comprises strip plates fixedly installed on one side of the second baffle, at least two first limiting grooves are formed in one side of each of the two strip plates, the other two strip plates are provided with second limiting grooves corresponding to the first limiting grooves, threaded rods are rotatably connected to the first limiting grooves, the threaded rods penetrate through the second limiting grooves and are fixedly connected with stop blocks at one end, the stop blocks are provided with fastening nuts on one side, and the fastening nuts are threadedly connected with the threaded rods.

[0013] Preferably, the adjusting assembly comprises first rotating grooves arranged at the two sides of the standing platform, first transmission shafts are rotatably connected to the first rotating grooves, the first baffle is connected with the first transmission shafts, second rotating grooves are arranged at the two sides of the first baffle, second transmission shafts are rotatably connected to the second rotating grooves, the second baffle is connected with the second transmission shafts, a driving motor is arranged below the first baffle, the driving motor is fixedly installed at the bottom of the standing platform, driving sprockets are fixedly connected to the output end of the driving motor and one end of the first transmission shaft, and the driving sprockets are connected with each other through a transmission chain.

[0014] Preferably, a protective cover is arranged around the driving motor, and one side of the protective cover is connected with the standing platform.

[0015] Preferably, the support assembly comprises third oil cylinders arranged at the bottom of one side of the standing platform, the third oil cylinders are two and arranged in parallel, the top end of the third oil cylinders is connected with the standing platform, and the bottom end of the third oil cylinders is fixedly provided with support foot pads.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a guide assembly can guide the scissor fork, improve the working stability of the first oil cylinder, the push -pull assembly can drive the whole standing platform to slide horizontally to the side away from the supporting frame, so that the staff can adjust the position of the standing platform according to actual demand, the clamping assembly and the adjusting assembly can realize the quick folding of the first baffle and the second baffle after the completion of the aerial work, so that the land area of the whole standing platform is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides walking type lifting aerial work platform's structural schematic diagram for the utility model provides walking type lifting aerial work platform's structural schematic diagram;

[0019] Figure 2 The utility model provides rearview structural schematic diagram for the utility model provides rearview structural schematic diagram;

[0020] Figure 3 The utility model provides guide assembly structure schematic diagram for the utility model provides guide assembly structure schematic diagram;

[0021] Figure 4 For Figure 3 The utility model provides walking type lifting aerial work platform's structural schematic diagram for the utility model provides walking type lifting aerial work platform's structural schematic diagram;

[0022] Figure 5 The utility model provides push -pull assembly structure schematic diagram for the utility model provides push -pull assembly structure schematic diagram;

[0023] Figure 6 The utility model provides adjusting assembly structure schematic diagram for the utility model provides adjusting assembly structure schematic diagram;

[0024] Figure 7 The utility model provides second baffle specific structure schematic diagram for the utility model provides second baffle specific structure schematic diagram;

[0025] Figure 8 For Figure 7 The utility model provides walking type lifting aerial work platform's structural schematic diagram for the utility model provides walking type lifting aerial work platform's structural schematic diagram;

[0026] Figure 9 The utility model provides the actual application scene diagram of the utility model.

[0027] In the figure: 1, walking car body; 2, support platform; 3, bearing frame; 4, standing platform; 5, scissor frame; 6, first oil cylinder; 7, guide assembly; 71, first bar seat; 72, sliding column; 73, side plate; 74, moving block; 75, first sliding block; 76, first sliding groove; 77, U-shaped seat; 8, push-pull assembly; 81, L-shaped plate; 82, second bar seat; 83, second sliding block; 84, second sliding groove; 85, third sliding block; 86, third sliding groove; 87, limiting block; 88, positioning groove; 89, second oil cylinder; 9, support assembly; 91, third oil cylinder; 92, support foot pad; 10, first baffle; 11, second baffle; 12, adjusting assembly; 121, first rotating groove; 122, first transmission shaft; 123, second rotating groove; 124, second transmission shaft; 125, drive motor; 126, transmission sprocket; 13, protective cover; 14, clamping assembly; 141, bar plate; 142, first limiting groove; 143, second limiting groove; 144, threaded rod; 145, fastening nut; 146, stop block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figures 1-9 The walking type aerial work platform shown in the figure comprises a walking car body 1, and it needs to be noted that the walking car body 1 is a lifting platform base of model HJA450-8; the walking car body 1 is fixedly connected with a support platform 2 at the top, a bearing frame 3 is arranged above the support platform 2, and a scissor frame 5 is arranged between the bearing frame 3 and the support platform 2;

[0030] Four first oil cylinders 6 are uniformly arranged at the periphery of the scissor frame 5, the first oil cylinders 6 are connected with the support platform 2 and the bearing frame 3 respectively, a guide assembly 7 for keeping the first oil cylinders 6 stable in work is arranged outside the scissor frame 5, the guide assembly 7 can guide the scissor frame 5 from both ends respectively, and the cooperation between the scissor frame 5 and the first oil cylinders 6 is more stable, so that the working stability of the first oil cylinders 6 is improved;

[0031] The standing platform 4 is arranged above the supporting frame 3, and the supporting frame 3 is internally provided with a push-pull assembly 8 for reciprocating sliding of the standing platform 4. By arranging the push-pull assembly 8, the standing platform 4 can be driven to horizontally slide away from the supporting frame 3, so as to facilitate the staff to adjust the position of the standing platform 4 according to actual needs. The standing platform 4 is provided with a first baffle 10 on both sides, and the first baffle 10 is provided with a second baffle 11 at both ends.

[0032] The clamping assembly 14 can facilitate the staff to fold and store the second baffle 11 after the aerial work is completed, so as to effectively reduce the floor area of the standing platform 4. The adjusting assembly 12 is arranged on the outer side of the second baffle 11, and the outer side of the standing platform 4 is provided with the adjusting assembly 12 for facilitating the folding work of the first baffle 10. By arranging the adjusting assembly 12, the first baffle 10 can be turned and stored together with the combined second baffle 11 on both sides of the standing platform 4, further reducing the floor area of the standing platform 4. The standing platform 4 is provided with a support assembly 9 at the bottom for improving the supporting strength of the supporting frame 3. By arranging the support assembly 9, the standing platform 4 can be supported from the bottom on one side after the position adjustment is completed, so as to reduce the risk of tilting and collapsing of the standing platform 4 due to unstable center of gravity, and improve the safety of aerial work.

[0033] The guide assembly 7 includes a first strip-shaped seat 71 arranged at both ends of the scissor frame 5. One of the first strip-shaped seats 71 is fixedly installed at the bottom of the supporting frame 3, and the other first strip-shaped seat 71 is fixedly installed at the top of the support platform 2. The first strip-shaped seat 71 is provided with a sliding column 72 on both sides, and the sliding column 72 is fixedly connected with a side plate 73 at both ends. The side plate 73 is connected with the first strip-shaped seat 71 on one side. The sliding column 72 is slidingly connected with a moving block 74 on the outer side at both ends. The moving block 74 is fixedly connected with a U-shaped seat 77 on the outer side. The scissor frame 5 is rotatably connected with the U-shaped seat 77 at both ends through a rotating shaft. The moving block 74 is fixedly connected with a first sliding block 75 on one side. The first strip-shaped seat 71 is provided with a first sliding groove 76 corresponding to the first sliding block 75 on the outer side. The first sliding block 75 is located in the first sliding groove 76, as shown in FIG. 2, Figure 3 and Figure 4 It should be noted that the first oil cylinder 6 is a three-section support oil cylinder. The first oil cylinder 6 at the top of the support platform 2 can drive the supporting frame 3 and the standing platform 4 to rise together, so as to bring the staff to a high place for the execution of aerial work. In this process, the scissor frame 5 can reciprocate along the axis direction of the sliding column 72 under the cooperation of the moving block 74 and the U-shaped seat 77, so as to realize the guidance of the scissor frame 5 and improve the working stability of the first oil cylinder 6.

[0034] The push-pull assembly 8 comprises an L-shaped plate 81 fixed to the bottom of the standing platform 4, and the bottom of the L-shaped plate 81 is fixedly connected with a second strip-shaped seat 82, and the two sides of the second strip-shaped seat 82 are fixedly connected with third sliding blocks 85, and the inner wall of the supporting frame 3 is provided with third sliding grooves 86 corresponding to the third sliding blocks 85, and the third sliding blocks 85 are located in the third sliding grooves 86, and one end of the third sliding block 85 is fixedly connected with a limiting block 87, and the bottom of the second strip-shaped seat 82 is fixedly connected with a second sliding block 83, and the bottom of the inner cavity of the supporting frame 3 is provided with a second sliding groove 84 corresponding to the second sliding block 83, and the second sliding block 83 is located in the second sliding groove 84, and the bottom of the inner cavity of the supporting frame 3 is symmetrically provided with two positioning grooves 88, and the second oil cylinder 89 is fixedly installed in the positioning groove 88, and one end of the second oil cylinder 89 is connected with the L-shaped plate 81, as shown in Figure 2 、 Figure 5 , the second oil cylinder 89 in the positioning groove 88 can drive the standing platform 4 to slide horizontally away from the supporting frame 3, so that the staff can adjust the position of the standing platform 4 according to the actual needs, and the flexibility and adaptability of the standing platform 4 are improved, and in this process, the connection between the standing platform 4 and the supporting frame 3 is enhanced by setting the second sliding block 83, the second sliding groove 84, the third sliding block 85 and the third sliding groove 86, so that the horizontal sliding of the standing platform 4 is more stable and smooth, and the limiting block 87 can prevent the standing platform 4 from sliding too far, thereby avoiding the disconnection between the standing platform 4 and the supporting frame 3.

[0035] The clamping assembly 14 comprises a strip-shaped plate 141 fixed to one side of the second baffle 11, wherein at least two first limiting grooves 142 are formed in one side of the two strip-shaped plates 141, and the other two strip-shaped plates 141 are provided with second limiting grooves 143 corresponding to the first limiting grooves 142, the first limiting grooves 142 are rotatably connected with threaded rods 144, one end of the threaded rod 144 penetrates to the outside of the second limiting groove 143 and is fixedly connected with a stop block 146, and the side of the stop block 146 is provided with a fastening nut 145, and the fastening nut 145 and the threaded rod 144 are connected through threads, Figure 6 、 Figure 7 and Figure 8As shown, in actual use, the first limiting groove 142 and the second limiting groove 143 on the one side of the strip-shaped plate 141 of the second baffle 11 are opposite to each other, so that the second baffle 11 can be assembled with the adjacent second baffle 11 and the opposite second baffle 11. When the worker performs the high-altitude operation, the fastening nut 145 is tightened to tightly contact the strip-shaped plate 141, and the rotation space of the threaded rod 144 is insufficient, so that the assembly of the adjacent second baffle 11 is realized. When the high-altitude operation is completed, the fastening nut 145 and the threaded rod 144 are used to assemble the opposite second baffle 11, so that the overall floor area of the standing platform 4 is reduced.

[0036] The adjusting assembly 12 comprises first rotating grooves 121 arranged on both sides of the standing platform 4, a first transmission shaft 122 rotatably connected in the first rotating grooves 121, the first baffle 10 connected with the first transmission shaft 122 at the bottom, second rotating grooves 123 arranged on both sides of the first baffle 10, a second transmission shaft 124 rotatably connected in the second rotating grooves 123, the second baffle 11 connected with the second transmission shaft 124 at one side, a driving motor 125 arranged below the first baffle 10 and fixedly installed at the bottom of the standing platform 4, a transmission sprocket 126 fixedly connected with the output end of the driving motor 125 and one end of the first transmission shaft 122, and the transmission sprocket 126 connected with each other through a transmission chain. Figure 6 、 Figure 7 and Figure 8 As shown, the driving motor 125 and the transmission sprocket 126 can drive the first transmission shaft 122 to rotate as a whole, so that the first baffle 10 and the combined second baffle 11 are turned and stored on both sides of the standing platform 4, further reducing the overall floor area of the standing platform 4. It should be noted that, in order to prevent the folded first baffle 10 from swinging randomly, the driving motor 125 should be selected to have a self-locking function.

[0037] The driving motor 125 is provided with a protective cover 13 connected with the standing platform 4 at one side, as shown in Figure 2 、 Figure 6 By arranging the protective cover 13, the worker's body can be prevented from being injured due to accidental touch of the transmission sprocket 126, and the safety is improved.

[0038] The supporting assembly 9 comprises third oil cylinders 91 arranged at the bottom of one side of the standing platform 4, the third oil cylinders 91 being two in number and arranged in parallel, the third oil cylinders 91 connected with the standing platform 4 at the top ends, and support foot pads 92 fixedly installed at the bottom ends of the third oil cylinders 91, as shown in Figure 1 、 Figure 2 and Figure 5As shown, after the position adjustment of the standing platform 4 is completed, the third oil cylinder 91 can drive the support foot pad 92 to contact the building outside, so as to reduce the probability of tilting and collapse of the standing platform 4 due to unstable center of gravity, and improve the safety of high-altitude operation, and it needs to be explained that the utility model is suitable for the foundation, slope and other types of building structures such as Figure 9 As shown, after the standing platform 4 extends to the side away from the supporting frame 3, the support assembly 9 can be in contact with the inclined surface at the top of the building structure, so as to support the standing platform 4 from the bottom of the side away from the supporting frame 3, so as to prevent the standing platform 4 from tilting and collapsing due to the shift of the center of gravity, and the walking vehicle body 1 itself has a certain weight, which can effectively reduce the center of gravity of the whole, and further improve the working stability of the utility model.

[0039] Working principle: first, the staff moves the utility model to the working site by using the walking vehicle body 1, then the supporting frame 3 and the standing platform 4 are driven to rise by the first oil cylinder 6 and the scissor frame 5, in this process, the guide assembly 7 guides the scissor frame 5 to improve the working stability of the first oil cylinder 6, then the standing platform 4 is driven to horizontally slide to the side away from the supporting frame 3 by the push-pull assembly 8, so as to facilitate the staff to adjust the position of the standing platform 4 according to the actual demand, then the first baffle 10 and the second baffle 11 can be quickly folded and stored after the high-altitude operation is completed by the clamping assembly 14 and the adjusting assembly 12, so as to reduce the floor area of the whole standing platform 4.

[0040] It needs to be explained that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a…" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A walking-type aerial work platform, characterized by comprising: Include: Walking car body (1), the top fixed connection of walking car body (1) is provided with support platform (2), the top of support platform (2) is equipped with bearing frame (3), bearing frame (3) is equipped with scissor frame (5) between support platform (2), four first oil cylinders (6) are evenly arranged in the periphery of scissor frame (5), the first oil cylinder (6) is connected with support platform (2) and bearing frame (3) respectively, the outer side of scissor frame (5) is equipped with the guide assembly (7) that can make the first oil cylinder (6) work and keep stable; Standing platform (4) is arranged on the top of bearing frame (3), the inside of bearing frame (3) is equipped with push-pull assembly (8) that can make standing platform (4) reciprocating sliding, both sides of standing platform (4) are equipped with first baffle (10), both ends of first baffle (10) are equipped with second baffle (11); Clamping assembly (14) is arranged on the outer side of second baffle (11), the outer side of standing platform (4) is equipped with adjusting assembly (12) for facilitating the folding work of first baffle (10), the bottom of standing platform (4) is equipped with support assembly (9) for improving the supporting strength of bearing frame (3). The guide assembly (7) includes the first strip seat (71) arranged at both ends of the scissor frame (5), one of the first strip seat (71) is fixedly installed at the bottom of the bearing frame (3), the other first strip seat (71) is fixedly installed at the top of the support platform (2), both sides of the first strip seat (71) are equipped with sliding columns (72), both ends of the sliding column (72) are fixedly connected with side plates (73), one side of the side plate (73) is connected with the first strip seat (71), both ends of the sliding column (72) are slidably connected with the moving block (74) outside, the moving block (74) is fixedly connected with the U-shaped seat (77) outside, the scissor frame (5) is rotatably connected with both ends of the U-shaped seat (77) through the rotating shaft, one side of the moving block (74) is fixedly connected with the first sliding block (75), the first sliding block (75) is arranged in the first sliding slot (76) outside the first strip seat (71), and the first sliding block (75) is arranged in the first sliding slot (76).

2. The aerial work platform according to claim 1, characterized in that: ​ 3. The aerial platform of claim 1, wherein: The push-pull assembly (8) comprises an L-shaped plate (81) fixed to the bottom of the standing platform (4), the bottom of the L-shaped plate (81) is fixedly connected with a second strip-shaped seat (82), both sides of the second strip-shaped seat (82) are fixedly connected with third sliding blocks (85), the inner wall of the supporting frame (3) is provided with third sliding grooves (86) corresponding to the third sliding blocks (85), the third sliding blocks (85) are located in the third sliding grooves (86), one end of the third sliding block (85) is fixedly connected with a limiting block (87), the bottom of the second strip-shaped seat (82) is fixedly connected with a second sliding block (83), the bottom of the inner cavity of the supporting frame (3) is provided with a second sliding groove (84) corresponding to the second sliding block (83), the second sliding block (83) is located in the second sliding groove (84), the bottom of the inner cavity of the supporting frame (3) is symmetrically provided with two positioning grooves (88), the second oil cylinder (89) is fixedly installed in the positioning groove (88), and one end of the second oil cylinder (89) is connected with the L-shaped plate (81).

4. The aerial platform of claim 1, wherein: The clamping assembly (14) comprises strip-shaped plates (141) fixed to one side of the second baffle (11), at least two first limiting grooves (142) are formed in one side of the two strip-shaped plates (141), the other two strip-shaped plates (141) are provided with second limiting grooves (143) corresponding to the first limiting grooves (142), the first limiting grooves (142) are rotatably connected with threaded rods (144), one end of the threaded rod (144) penetrates to the outside of the second limiting groove (143) and is fixedly connected with a stop block (146), the stop block (146) is provided with a fastening nut (145) on one side, and the fastening nut (145) and the threaded rod (144) are connected through threads.

5. The aerial platform of claim 1, wherein: The adjusting assembly (12) comprises first rotating grooves (121) arranged on both sides of the standing platform (4), the first rotating grooves (121) are rotatably connected with first transmission shafts (122), the bottom of the first baffle (10) is connected with the first transmission shaft (122), both sides of the first baffle (10) are provided with second rotating grooves (123), the second rotating grooves (123) are rotatably connected with second transmission shafts (124), one side of the second baffle (11) is connected with the second transmission shaft (124), a driving motor (125) is arranged below the first baffle (10), the driving motor (125) is fixedly installed at the bottom of the standing platform (4), the output end of the driving motor (125) and one end of the first transmission shaft (122) are fixedly connected with transmission sprockets (126), and the transmission sprockets (126) are connected through a transmission chain.

6. The aerial platform of claim 5, wherein: The driving motor (125) is provided with a protective cover (13), and one side of the protective cover (13) is connected with the standing platform (4).

7. The aerial platform of claim 1, wherein: The support assembly (9) comprises third oil cylinders (91) arranged at the bottom of one side of the standing platform (4), the third oil cylinders (91) are arranged in parallel and have two, the top end of the third oil cylinder (91) is connected with the standing platform (4), and the bottom end of the third oil cylinder (91) is fixedly provided with a support foot pad (92).

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