Unfolding and folding supporting leg device for engineering vehicle

Abstract

An unfolding and folding supporting leg device for an engineering vehicle comprises an unfolding and folding supporting leg device body provided with an outer barrel shell (1) and an inner barrel shell (2) and an adjusting cushion block set arranged between the outer barrel shell (1) and the inner barrel shell (2), the engineering vehicle is supported off the ground through the unfolding and folding supporting leg device body, and the engineering vehicle can be unfolded and folded through the adjusting cushion block set. The inner barrel shell (2) is supported on the outer barrel shell (1) in a surrounding mode, local closing-up elimination of a movement gap is achieved, the technical problem that the gap is difficult to control due to the fact that the inner barrel shell is directly installed in the outer barrel shell is solved, and therefore the using effect of the unfolding and folding supporting leg device is improved.

Description

Technical Field

[0001] The utility model relates to a leg extension and retractable device, in particular to a leg extension and retractable device for an engineering vehicle. Background Art

[0002] For example, when aerial work vehicles, tow trucks, cranes and other engineering vehicles are operating, they need to be supported off the ground to increase the working stability of the engineering vehicles. Therefore, the outrigger device for engineering vehicles is an important engineering vehicle component. In the existing outrigger device for engineering vehicles, the inner cylinder shell is directly installed in the outer cylinder shell. Due to manufacturing errors between the inner and outer cylinders of the horizontal outriggers, the gap is difficult to control. If the gap is too small, it is difficult to extend and retract the legs, causing shaking and abnormal noise when the legs are extended and retracted. If the gap is too large, the legs will shake significantly during operation and driving. If the gap is too large, when the inner cylinder of the outrigger is close to one side, the gap on the other side is too large, exceeding the effective stroke of the induction switch, causing misjudgment and causing the equipment to stop working, thereby affecting the use effect of the outrigger device.

[0003] The utility model has the technical feature of locally closing and eliminating the movement gap, and effectively explores and studies the technical problem that the gap is difficult to control because the inner cylinder shell is directly installed in the outer cylinder shell. Summary of the invention

[0004] The object of the utility model is a leg extension and retraction device for engineering vehicles.

[0005] In order to overcome the above technical shortcomings, the purpose of the utility model is to provide a leg extension and retractable device for an engineering vehicle, thereby improving the use effect of the leg extension and retractable device.

[0006] To achieve the above object, the technical solution adopted by the utility model is: comprising a leg extension and retraction device body having an outer cylinder shell and an inner cylinder shell, and an adjustment pad block group arranged between the outer cylinder shell and the inner cylinder shell.

[0007] Due to the design of the outrigger leg device body and the adjusting pad group, the outrigger leg device body can be used to support the engineering vehicle off the ground, and the adjusting pad group can be used to support the inner cylinder shell on the outer cylinder shell, thereby achieving partial elimination of the movement gap, solving the technical problem of directly installing the inner cylinder shell in the outer cylinder shell, which makes the gap difficult to control. Therefore, the use effect of the outrigger leg device is improved.

[0008] The utility model is designed to connect the main body of the leg extension and retracting device and the adjusting cushion block group to each other in a manner of locally closing and eliminating the movement gap.

[0009] The utility model is designed to connect the adjusting cushion block group with the main body of the extending and retracting leg device in a manner of carrying out an embracing support.

[0010] The utility model is designed that the main body of the leg extension and retracting device is arranged to further include a lateral thrust cylinder rod and a lifting and telescopic cylinder rod.

[0011] The utility model is designed that the adjusting pad block group is arranged to include an upper adjusting pad block, a lower adjusting pad block and a side adjusting pad block.

[0012] The technical effects of the above five technical solutions are: highlighting the technical feature of locally closing and eliminating the movement gap, and introducing it into the technical field of the outrigger device for engineering vehicles.

[0013] The utility model is designed to further include a first accessory device, and the first accessory device is arranged on the main body of the leg extension and retraction device, and the first accessory device is arranged to include an inner induction switch, an outer induction switch and a trigger rod.

[0014] The technical effect of the above technical solution is to realize the integrated installation of other technical features and expand the technical effect of the utility model.

[0015] The utility model is designed that an inner cylinder shell is arranged between an outer cylinder shell and a lifting and telescopic cylinder rod, a transverse thrust cylinder rod, an upper adjustment pad, a lower adjustment pad and a side adjustment pad are arranged between the outer cylinder shell and the inner cylinder shell, an inner induction switch and an outer induction switch are respectively arranged on the inner cylinder shell, and a trigger rod is arranged between the transverse thrust cylinder rod and the inner induction switch and the outer induction switch.

[0016] The technical effect of the above technical scheme is that the basic technical scheme of the utility model is formed by the outer cylinder shell, the inner cylinder shell, the lateral thrust cylinder rod, the lifting and telescopic cylinder rod, the upper adjustment pad, the lower adjustment pad, the side adjustment pad, the inner sensing switch, the outer sensing switch and the trigger rod, thereby solving the technical problem of the utility model.

[0017] The utility model is designed that the outer cylinder shell is configured to include a cylinder part I, an upper support frame part, a lower support frame part and an end plate part, and the end surface part of the cylinder part I is configured to be connected to the outer side of the inner end surface of the end plate part, the upper end surface part of the end plate part and the upper side surface of the end plate part are respectively configured to be connected to the inner wall of the upper support frame part, and the lower end surface part of the end plate part is configured to be connected to the vertical end head of the lower support frame part, the cylinder part I is respectively configured to be connected to the inner cylinder shell, the transverse thrust cylinder rod and the trigger rod in an accommodating manner, and the inner side of the inner end surface of the end plate part is configured to be connected to the inner cylinder shell in a contacting manner, the upper support frame part is configured to be connected to the upper adjustment pad block, and the lower support frame part is configured to be connected to the lower adjustment pad block, and the front and rear end surface parts of the end plate part are configured to be connected to the side The adjusting pad block is connected, the cylinder part I is set to a rectangular tubular body and the cylinder part I is set to be connected to the frame of the engineering vehicle, the upper support frame part and the lower support frame part are respectively set to a U-shaped block body with a threaded hole body in the longitudinal part, the end plate part is set to a rectangular tubular body with a accommodating hole body in the middle part of the upper end face, the middle part of the upper end face and the front and rear end face parts, and the accommodating hole bodies located on the front and rear end face parts of the end plate part are set to be connected to the side adjusting pad block, the threaded hole body on the upper support frame part and the accommodating hole body on the upper end face part of the end plate part are respectively set to be connected to the upper adjusting pad block, and the threaded hole body on the lower support frame part and the accommodating hole body on the lower end face part of the end plate part are respectively set to be connected to the lower adjusting pad block.

[0018] The utility model is designed that the inner cylinder shell is arranged to include a cylinder part II, an upper slider part and a side slider part, and the inner end portion of the upper end surface of the cylinder part II is arranged to be connected with the inner end surface portion of the upper slider part, the inner end portion of the side end surface of the cylinder part II is arranged to be connected with the inner end surface portion of the side slider part, and the cylinder part II is arranged to be connected with the outer cylinder shell in a through-type manner, the outer side portion of the inner wall of the cylinder part II is arranged to be connected with the transverse thrust cylinder rod, and the inner side of the inner wall of the cylinder part II is arranged to be connected with the inner induction switch, the inner side portion of the inner wall of the cylinder part II is arranged to be connected with the outer induction switch, and the cylinder part II It is arranged to be connected with the trigger rod in an accommodating manner, the outer port portion of the cylinder part II is arranged to be connected with the lifting and telescopic cylinder rod and the upper end surface portion of the cylinder part II is arranged to be connected with the upper adjusting pad in a contact manner, the lower end surface portion of the cylinder part II is arranged to be connected with the lower adjusting pad in a contact manner and the front and rear end surface portions of the cylinder part II are arranged to be connected with the side adjusting pad in a contact manner, the outer end surface portion of the upper sliding block portion and the outer end surface portions of the side sliding block portion are respectively arranged to be connected with the outer cylinder shell in a contact manner and the cylinder part II is arranged to be a rectangular tubular body, and the upper sliding block portion and the side sliding block portion are respectively arranged to be seat-shaped bodies.

[0019] The utility model is designed that the lateral thrust cylinder rod is arranged as an electric push rod and the lateral thrust cylinder rod is respectively arranged to be through-connected with the outer cylinder shell and the inner cylinder shell, the inner end head of the lateral thrust cylinder rod is arranged to be connected with the inner cylinder shell and the outer end head of the peripheral side of the lateral thrust cylinder rod is arranged to be connected with the trigger rod, and the outer end head of the lateral thrust cylinder rod is arranged to be connected with the frame of the engineering vehicle.

[0020] The utility model is designed that a lifting telescopic cylinder rod is arranged to include a telescopic cylinder part, a plate part and a support part, and the upper part of the peripheral side surface of the outer shell of the telescopic cylinder part is arranged to be connected to the plate part, the lower part of the peripheral side surface of the outer shell of the telescopic cylinder part is arranged to be connected to the support part and the middle part of the peripheral side surface of the outer shell of the telescopic cylinder part is arranged to be connected to the inner cylinder shell, the support part is arranged to be connected to the inner cylinder shell through a connecting rod and the plate part is arranged to be contact-connected to the frame of an engineering vehicle, the telescopic cylinder part is arranged to be a two-section telescopic cylinder and the hydraulic port part of the telescopic cylinder part is arranged to be connected to the output hydraulic port part of the engineering vehicle, the plate part is arranged to be a block-shaped body and the support part is arranged to be a cylindrical body.

[0021] The technical effects of the above four technical solutions are: achieving span lifting support for engineering vehicles and improving the supporting stability performance of engineering vehicles.

[0022] The utility model is designed that the upper adjusting cushion block is arranged to include a block part I and a screw part I, and the inner end head of the screw part I is arranged to be threadedly connected with the outer end face part of the block part I, the outer end head of the screw part I is arranged to be threadedly connected with the outer cylinder shell, and the block part I is arranged to be sunk-connected with the outer cylinder shell, the inner end face part of the block part I is arranged to be contact-connected with the inner cylinder shell, and the block part I is arranged to be a seat-shaped body with a threaded hole body on the outer end face part, the threaded hole body of the block part I is arranged to be connected with the screw part I, and the screw part I is arranged to be a hexagon socket bolt, and the screw part I is arranged to be spaced and distributed along the transverse center line of the block part I.

[0023] The technical effect of the above technical solution is that the inner cylinder shell is fixedly connected with the upper clamping plate.

[0024] The utility model is designed that the lower adjusting cushion block is arranged to include a block part II, a nut part I and a screw part II, and the block part II is arranged to be connected with an outer cylinder shell in a sinking manner, the inner end face part of the block part II is arranged to be connected with the inner cylinder shell in a contacting manner, and the outer end face part of the block part II is arranged to be connected with the inner end face part of the screw part II in a contacting manner, the screw part II is arranged to be threadedly connected with the nut part I and the outer cylinder shell respectively, and the inner end face part of the nut part I is arranged to be connected with the outer cylinder shell in a contacting manner, the block part II is arranged to be a seat-shaped body, and the nut part I is arranged to be a hexagonal nut, the screw part II is arranged to be a hexagonal bolt, and the screw part II is arranged to be spaced and distributed along the transverse center line of the block part II.

[0025] The technical effect of the above technical solution is that the lower clamping plate connection of the inner cylinder shell can be adjusted.

[0026] The utility model is designed that the side adjustment pad is arranged to include a nut part II, a screw barrel part, a block part III and a screw part III, and the screw barrel part is arranged to be threadedly connected with the nut part II, the inner end port part of the screw barrel part is arranged to be accommodatingly connected with the block part III, and the screw part III is respectively arranged to be threadedly connected with the vertical part of the screw barrel part and the inner end face part of the block part III, the inner end face part of the nut part II is arranged to be connected with the outer cylinder shell, and the screw barrel part is arranged to be through-connected with the outer cylinder shell, the outer end face part of the block part III is arranged to be contact-connected with the inner cylinder shell, and the nut part II is arranged to be a disc-shaped body with a threaded hole body, the screw barrel part is arranged to be a tubular body with a middle vertical part and an outer peripheral side face part having a threaded body, and the block part III is arranged to be a columnar body with a threaded hole body in the inner end face part, the screw part III is arranged to be a hexagon socket bolt, and the threaded hole body of the nut part II is arranged to be connected with the threaded body of the screw barrel part, and the middle vertical part of the screw barrel part and the threaded hole body of the block part III are respectively arranged to be connected with the screw part III.

[0027] The technical effect of the above technical solution is that the side clamping plate connection of the inner cylinder shell is adjusted.

[0028] The utility model is designed that the trigger rod is arranged as a rod-shaped body and is respectively arranged to be through-connected with the outer cylinder shell and the inner cylinder shell, the outer end of the trigger rod is arranged to be connected with the transverse thrust cylinder rod and the inner end of the trigger rod is respectively arranged to be distributed correspondingly with the inner induction switch and the outer induction switch.

[0029] The utility model is designed that the inner induction switch and the outer induction switch are respectively arranged as infrared induction switches, and the shells of the inner induction switch and the outer induction switch are respectively arranged to be connected with the inner cylinder shell, and the induction heads of the inner induction switch and the outer induction switch are arranged to be connected with the trigger rod.

[0030] The technical effects of the above two technical solutions are: realizing the control of the sensing position point and realizing the control of the expansion and contraction position point between the inner cylinder shell and the outer cylinder shell.

[0031] The utility model is designed that an outer cylinder shell, an inner cylinder shell, a lateral thrust cylinder rod, a lifting and telescopic cylinder rod, an upper adjustment pad, a lower adjustment pad and a side adjustment pad are arranged to be distributed in the manner of a clamping opening, and the outer cylinder shell, the inner cylinder shell, the lateral thrust cylinder rod, the lifting and telescopic cylinder rod, an upper adjustment pad, a lower adjustment pad and a side adjustment pad are arranged to be distributed in the manner of controlling a lateral position.

[0032] The utility model is designed that the center line of the outer cylinder shell, the center line of the inner cylinder shell, the center line of the transverse thrust cylinder rod and the center line of the trigger rod are arranged on the same straight line, two side adjustment pads are arranged between the outer cylinder shell and the inner cylinder shell, the telescopic cylinder part, the block part III, the block part II and the block part I are arranged to be connected with the cylinder part II, the screw cylinder part is arranged to be connected with the accommodating hole body on the front and rear end face parts of the end plate part, the nut part II is arranged to be connected with the front and rear end face parts of the end plate part, the block part II is arranged to be connected with the accommodating hole body on the lower end face part of the end plate part, the screw part II is arranged to be connected with the threaded hole body on the lower support frame part, the nut part I is arranged to be connected with the outer end face part of the lower support frame part, the block part I is arranged to be connected with the accommodating hole body on the upper end face part of the end plate part, and the screw part I is arranged to be connected with the threaded hole body on the upper support frame part.

[0033] In the technical solution, the local closing and elimination of the movement gap is achieved by adjusting the cushion block group.

[0034] In the present technical solution, the main body of the outrigger device for partially eliminating the movement gap and the adjustment pad group are important technical features. In the technical field of outrigger devices for engineering vehicles, it has novelty, creativity and practicality. The terms in the present technical solution can be explained and understood using the patent literature in this technical field. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a schematic diagram of the utility model.

[0037] Figure 2 It is a schematic diagram of the connection relationship between the outer cylinder shell 1, the inner cylinder shell 2, the transverse thrust cylinder rod 3, the upper adjustment pad 5, the lower adjustment pad 6 and the side adjustment pad 7.

[0038] Figure 3 is a schematic diagram of the structure of the side adjustment pad 7,

[0039] Outer cylinder shell-1, inner cylinder shell-2, lateral thrust cylinder rod-3, lifting and telescopic cylinder rod-4, upper adjusting pad block-5, lower adjusting pad block-6, side adjusting pad block-7, inner induction switch-8, outer induction switch-9, trigger rod-91, cylinder part I-11, upper support frame part-12, lower support frame part-13, end plate part-14, cylinder part II-21, upper slider part-22, side slider part-23, block part I-51, screw part I-52, block part II-61, nut part I-62, screw part II-63, nut part II-71, screw cylinder part-72, block part III-73, screw part III-74, telescopic cylinder part-41, plate part-42, support part-43. DETAILED DESCRIPTION

[0040] According to the Examination Guidelines, terms such as “having”, “including” and “comprising” used in the present invention should be understood as not precluding the existence or addition of one or more other elements or combinations thereof.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other. In addition, unless otherwise specified, the equipment and materials used in the following embodiments are commercially available. If the processing conditions are not clearly stated, please refer to the purchased product manual or proceed according to conventional methods in the field.

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] Figure 1 This is the first embodiment of the utility model, which is described in detail in conjunction with the accompanying drawings. It includes an outer cylinder shell 1, an inner cylinder shell 2, a lateral thrust cylinder rod 3, a lifting and telescopic cylinder rod 4, an upper adjustment pad 5, a lower adjustment pad 6, a side adjustment pad 7, an inner induction switch 8, an outer induction switch 9 and a trigger rod 91, and an inner cylinder shell 2 is arranged between the outer cylinder shell 1 and the lifting and telescopic cylinder rod 4, a lateral thrust cylinder rod 3, an upper adjustment pad 5, a lower adjustment pad 6 and a side adjustment pad 7 are arranged between the outer cylinder shell 1 and the inner cylinder shell 2, and an inner induction switch 8 and an outer induction switch 9 are respectively arranged on the inner cylinder shell 2, and a trigger rod 91 is arranged between the lateral thrust cylinder rod 3 and the inner induction switch 8 and the outer induction switch 9.

[0046] In this embodiment, the outer cylinder shell 1 is configured to include a cylinder portion Ⅰ11, an upper support frame portion 12, a lower support frame portion 13 and an end plate portion 14, and the end surface portion of the cylinder portion Ⅰ11 is configured to be connected to the outer side of the inner end surface of the end plate portion 14, the upper end surface portion of the end plate portion 14 and the upper side portion of the end plate portion 14 are respectively configured to be connected to the inner wall of the upper support frame portion 12, and the lower end surface portion of the end plate portion 14 is configured to be connected to the vertical end head of the lower support frame portion 13, the cylinder portion Ⅰ11 is respectively configured to be accommodatingly connected to the inner cylinder shell 2, the transverse thrust cylinder rod 3 and the trigger rod 91, and the inner side of the inner end surface of the end plate portion 14 is configured to be contactingly connected to the inner cylinder shell 2, the upper support frame portion 12 is configured to be connected to the upper adjustment pad 5 and the lower support frame portion 13 is configured to be connected to the lower adjustment pad 6, and the front and rear ends of the end plate portion 14 are The face portion is configured to be connected to the side adjustment pad 7, the cylinder portion Ⅰ11 is configured to be a rectangular tubular body and the cylinder portion Ⅰ11 is configured to be connected to the frame of the engineering vehicle, the upper support frame portion 12 and the lower support frame portion 13 are respectively configured to be a U-shaped block body with a threaded hole body in the longitudinal portion, the end plate portion 14 is configured to be a rectangular tubular body with a accommodating hole body in the middle portion of the upper end face, the middle portion of the upper end face and the front and rear end face portions, and the accommodating hole bodies located on the front and rear end face portions of the end plate portion 14 are configured to be connected to the side adjustment pad 7, the threaded hole body located on the upper support frame portion 12 and the accommodating hole body located on the upper end face portion of the end plate portion 14 are respectively configured to be connected to the upper adjustment pad 5, and the threaded hole body located on the lower support frame portion 13 and the accommodating hole body located on the lower end face portion of the end plate portion 14 are respectively configured to be connected to the lower adjustment pad 6.

[0047] Through the outer cylinder shell 1, supporting connection points for the inner cylinder shell 2, the lateral thrust cylinder rod 3, the upper adjustment pad 5, the lower adjustment pad 6, the side adjustment pad 7 and the trigger rod 91 are formed. The connection with the inner cylinder shell 2 is realized by the cylinder part Ⅰ11 and the end plate part 14. The connection with the lateral thrust cylinder rod 3 is realized by the cylinder part Ⅰ11. The connection with the trigger rod 91 is realized. The connection with the upper adjustment pad 5 is realized by the upper support frame part 12 and the end plate part 14. The connection with the lower adjustment pad 6 is realized by the lower support frame part 13 and the end plate part 14. The connection with the side adjustment pad 7 is realized by the end plate part 14. The technical purpose is to be used as a component for connecting to the frame of an engineering vehicle.

[0048] In this embodiment, the inner cylinder shell 2 is configured to include a cylinder portion II 21, an upper slider portion 22 and a side slider portion 23, and the inner end portion of the upper end surface of the cylinder portion II 21 is configured to be connected to the inner end surface portion of the upper slider portion 22, the inner end portion of the side end surface of the cylinder portion II 21 is configured to be connected to the inner end surface portion of the side slider portion 23, and the cylinder portion II 21 is configured to be connected to the outer cylinder shell 1 in a through-type manner, the outer side portion of the inner wall of the cylinder portion II 21 is configured to be connected to the transverse thrust cylinder rod 3, and the inner wall outer side of the cylinder portion II 21 is configured to be connected to the inner induction switch 8, the inner side portion of the inner wall of the cylinder portion II 21 is configured to be connected to the outer induction switch 9, and the cylinder portion II 2 1 is configured to be accommodatingly connected to the trigger rod 91, the outer end portion of the cylinder II 21 is configured to be connected to the lifting and telescopic cylinder rod 4 and the upper end surface portion of the cylinder II 21 is configured to be contact-connected to the upper adjustment pad 5, the lower end surface portion of the cylinder II 21 is configured to be contact-connected to the lower adjustment pad 6 and the front and rear end surfaces of the cylinder II 21 are configured to be contact-connected to the side adjustment pad 7, the outer end surface portions of the upper slider portion 22 and the outer end surface portions of the side slider portion 23 are respectively configured to be contact-connected to the outer cylinder shell 1 and the cylinder II 21 is configured to be a rectangular tubular body, and the upper slider portion 22 and the side slider portion 23 are respectively configured to be seat-shaped bodies.

[0049] Through the inner cylinder shell 2, support connection points are formed for the outer cylinder shell 1, the lateral thrust cylinder rod 3, the lifting and telescopic cylinder rod 4, the upper adjusting pad 5, the lower adjusting pad 6, the side adjusting pad 7, the inner sensing switch 8, the outer sensing switch 9 and the trigger rod 91. The connection with the outer cylinder shell 1 is realized by the cylinder part II 21, the upper slider part 22 and the side slider part 23. The connection with the lateral thrust cylinder rod 3 is realized by the cylinder part II 21, the connection with the lifting and telescopic cylinder rod 4, the connection with the upper adjusting pad 5, the connection with the lower adjusting pad 6, the connection with the side adjusting pad 7, the connection with the inner sensing switch 8, the connection with the outer sensing switch 9 and the connection with the trigger rod 91. The technical purpose is to be used as one of the components for driving the lifting and telescopic cylinder rod 4 to expand and contract.

[0050] In this embodiment, the lateral thrust cylinder rod 3 is configured as an electric push rod and the lateral thrust cylinder rod 3 is respectively configured to be through-connected with the outer cylinder shell 1 and the inner cylinder shell 2, the inner end of the lateral thrust cylinder rod 3 is configured to be connected with the inner cylinder shell 2 and the outer end of the peripheral side of the lateral thrust cylinder rod 3 is configured to be connected with the trigger rod 91, and the outer end of the lateral thrust cylinder rod 3 is configured to be connected with the frame of the engineering vehicle.

[0051] A supporting connection point for the outer cylinder shell 1, the inner cylinder shell 2 and the trigger rod 91 is formed by the transverse thrust cylinder rod 3. The transverse thrust cylinder rod 3 realizes connection with the outer cylinder shell 1, the inner cylinder shell 2 and the trigger rod 91. Its technical purpose is to serve as the second component for driving the lifting and telescopic cylinder rod 4 to expand and contract.

[0052] In this embodiment, the trigger rod 91 is configured as a rod-shaped body and the trigger rod 91 is respectively configured to be through-connected with the outer cylinder shell 1 and the inner cylinder shell 2, the outer end of the trigger rod 91 is configured to be connected with the transverse thrust cylinder rod 3 and the inner end of the trigger rod 91 is respectively configured to be distributed corresponding to the inner sensing switch 8 and the outer sensing switch 9.

[0053] A supporting connection point is formed for the outer cylinder shell 1, the inner cylinder shell 2, the inner sensing switch 8 and the outer sensing switch 9 through the trigger rod 91. The trigger rod 91 realizes connection with the outer cylinder shell 1, the inner cylinder shell 2, the inner sensing switch 8 and the outer sensing switch 9. The technical purpose is to serve as one of the components for controlling the expansion and contraction position of the lifting and telescopic cylinder rod 4.

[0054] In this embodiment, the inner induction switch 8 and the outer induction switch 9 are respectively configured as infrared induction switches and the shells of the inner induction switch 8 and the outer induction switch 9 are respectively configured to be connected to the inner cylinder shell 2, and the induction head of the inner induction switch 8 and the induction head of the outer induction switch 9 are configured to be connected to the trigger rod 91.

[0055] Through the inner sensing switch 8 and the outer sensing switch 9, a supporting connection point for the inner cylinder shell 2 and the trigger rod 91 is formed. The inner sensing switch 8 and the outer sensing switch 9 realize the connection with the inner cylinder shell 2 and the connection with the trigger rod 91. Its technical purpose is to serve as the second component for controlling the expansion and contraction position of the lifting and telescopic cylinder rod 4.

[0056] In this embodiment, the upper adjusting pad 5 is configured to include a block portion Ⅰ51 and a screw portion Ⅰ52, and the inner end head of the screw portion Ⅰ52 is configured to be threadedly connected to the outer end face portion of the block portion Ⅰ51, the outer end head of the screw portion Ⅰ52 is configured to be threadedly connected to the outer cylinder shell 1, and the block portion Ⅰ51 is configured to be sunk into the outer cylinder shell 1, the inner end face portion of the block portion Ⅰ51 is configured to be contact-connected to the inner cylinder shell 2, and the block portion Ⅰ51 is configured to be a seat-shaped body with a threaded hole body on the outer end face portion, the threaded hole body of the block portion Ⅰ51 is configured to be connected to the screw portion Ⅰ52, and the screw portion Ⅰ52 is configured to be a hexagon socket bolt, and the screw portion Ⅰ52 is configured to be arranged and distributed at intervals along the transverse center line of the block portion Ⅰ51.

[0057] By means of the upper adjusting pad 5, a supporting connection point for the outer cylinder shell 1 and the inner cylinder shell 2 is formed, the block part Ⅰ51 and the screw part Ⅰ52 realize the connection with the outer cylinder shell 1, and the block part Ⅰ51 realizes the connection with the inner cylinder shell 2. The technical purpose is to serve as one of the components for controlling the gap between the inner cylinder shell 2 and the outer cylinder shell 1.

[0058] In this embodiment, the lower adjusting pad 6 is configured to include a block portion II 61, a nut portion I 62 and a screw portion II 63, and the block portion II 61 is configured to be sunk in connection with the outer cylindrical shell 1, the inner end face portion of the block portion II 61 is configured to be contact-connected with the inner cylindrical shell 2 and the outer end face portion of the block portion II 61 is configured to be contact-connected with the inner end face portion of the screw portion II 63, the screw portion II 63 is respectively configured to be threadedly connected with the nut portion I 62 and the outer cylindrical shell 1 and the inner end face portion of the nut portion I 62 is configured to be contact-connected with the outer cylindrical shell 1, the block portion II 61 is configured to be a seat-shaped body and the nut portion I 62 is configured to be a hexagonal nut, the screw portion II 63 is configured to be a hexagonal bolt and the screw portion II 63 is configured to be arranged and distributed at intervals along the transverse center line of the block portion II 61.

[0059] By adjusting the spacer block 6, a supporting connection point for the outer cylinder shell 1 and the inner cylinder shell 2 is formed. The block part II 61, the nut part I 62 and the screw part II 63 realize the connection with the outer cylinder shell 1. The block part II 61 realizes the connection with the inner cylinder shell 2. The technical purpose is to serve as the second component for controlling the gap between the inner cylinder shell 2 and the outer cylinder shell 1.

[0060] In this embodiment, the side adjustment pad 7 is configured to include a nut portion II 71, a screw barrel portion 72, a block portion III 73 and a screw portion III 74, and the screw barrel portion 72 is configured to be threadedly connected to the nut portion II 71, the inner end port portion of the screw barrel portion 72 is configured to be accommodatingly connected to the block portion III 73, and the screw portion III 74 is respectively configured to be threadedly connected to the vertical portion of the screw barrel portion 72 and the inner end face portion of the block portion III 73, the inner end face portion of the nut portion II 71 is configured to be connected to the outer cylinder shell 1, and the screw barrel portion 72 is configured to be through-connected to the outer cylinder shell 1, the block portion The outer end face portion of Ⅲ73 is configured to be contact-connected with the inner cylinder shell 2 and the nut portion Ⅱ71 is configured to be a disc-shaped body with a threaded hole body, the screw barrel portion 72 is configured to be a tubular body having a middle vertical portion and an outer peripheral side portion with a threaded body and the block portion Ⅲ73 is configured to be a columnar body with a threaded hole body on the inner end face portion, the screw portion Ⅲ74 is configured to be a hexagon socket bolt and the threaded hole body of the nut portion Ⅱ71 is configured to be connected to the threaded body of the screw barrel portion 72, and the middle vertical portion of the screw barrel portion 72 and the threaded hole body of the block portion Ⅲ73 are respectively configured to be connected to the screw portion Ⅲ74.

[0061] A supporting connection point for the outer cylinder shell 1 and the inner cylinder shell 2 is formed by the side adjustment pad 7, the connection with the outer cylinder shell 1 is realized by the nut part II 71 and the screw barrel part 72, the connection with the inner cylinder shell 2 is realized by the block part III 73, and the connection between the block part III 73 and the screw barrel part 72 is realized by the screw part III 74. The technical purpose is to serve as the third component for controlling the gap between the inner cylinder shell 2 and the outer cylinder shell 1.

[0062] In the present embodiment, the lifting telescopic cylinder rod 4 is configured to include a telescopic cylinder portion 41, a plate portion 42 and a support portion 43, and the upper portion of the outer shell peripheral side surface of the telescopic cylinder portion 41 is configured to be connected to the plate portion 42, the lower portion of the outer shell peripheral side surface of the telescopic cylinder portion 41 is configured to be connected to the support portion 43 and the middle portion of the outer shell peripheral side surface of the telescopic cylinder portion 41 is configured to be connected to the inner cylinder shell 2, the support portion 43 is configured to be connected to the inner cylinder shell 2 through a connecting rod and the plate portion 42 is configured to be contact-connected to the frame of the engineering vehicle, the telescopic cylinder portion 41 is configured to be a two-section telescopic cylinder and the hydraulic port portion of the telescopic cylinder portion 41 is configured to be connected to the output hydraulic port portion of the engineering vehicle, the plate portion 42 is configured to be a block-shaped body and the support portion 43 is configured to be a cylindrical body.

[0063] By lifting and lowering the telescopic cylinder rod 4, a supporting connection point for the inner cylinder shell 2 is formed, the telescopic cylinder part 41 and the support part 43 realize the connection with the inner cylinder shell 2, and the plate part 42 realizes the connection with the frame of the engineering vehicle. Its technical purpose is to be used as a component for lifting and supporting the frame of the engineering vehicle.

[0064] In this embodiment, the outer cylinder shell 1, the inner cylinder shell 2, the lateral thrust cylinder rod 3 and the lifting telescopic cylinder rod 4 are arranged to be distributed in the manner of a clamping opening with the upper adjustment pad 5, the lower adjustment pad 6 and the side adjustment pad 7, and the outer cylinder shell 1, the inner cylinder shell 2, the lateral thrust cylinder rod 3, the lifting telescopic cylinder rod 4, the upper adjustment pad 5, the lower adjustment pad 6 and the side adjustment pad 7 are arranged to be distributed in the manner of controlling the lateral position with the inner sensing switch 8, the outer sensing switch 9 and the trigger rod 91, the center line of the outer cylinder shell 1, the center line of the inner cylinder shell 2, the center line of the lateral thrust cylinder rod 3 and the center line of the trigger rod 91 are arranged on the same straight line, the two side adjustment pads 7 are arranged between the outer cylinder shell 1 and the inner cylinder shell 2, and the telescopic cylinder portion 41 , block part III 73, block part II 61 and block part I 51 are arranged to be connected to the barrel part II 21, the screw barrel part 72 is arranged to be connected to the accommodating hole body located on the front and rear end surface parts of the end disk part 14, the nut part II 71 is arranged to be connected to the front and rear end surface parts of the end disk part 14, the block part II 61 is arranged to be connected to the accommodating hole body located on the lower end surface part of the end disk part 14, the screw part II 63 is arranged to be connected to the threaded hole body located on the lower support frame part 13, the nut part I 62 is arranged to be connected to the outer end surface part of the lower support frame part 13, the block part I 51 is arranged to be connected to the accommodating hole body located on the upper end surface part of the end disk part 14, and the screw part I 52 is arranged to be connected to the threaded hole body located on the upper support frame part 12.

[0065] The method of using this embodiment is as follows: when the outer cylinder shell 1 is connected to the frame of the engineering vehicle, the hydraulic port of the telescopic cylinder part 41 is connected to the output hydraulic port of the engineering vehicle, the block part I51 is placed in the receiving hole on the upper end face of the end plate part 14, the screw part I52 is installed in the threaded hole on the upper support frame part 12 and the threaded hole of the block part I51, so that the inner end face of the block part I51 contacts the lower end face of the cylinder part II21, the block part II61 is placed in the receiving hole on the lower end face of the end plate part 14, and the screw part II62 is installed in the threaded hole on the upper support frame part 12 and the threaded hole of the block part I51. 3 is rotated in the threaded hole body and the nut part I 62 located on the lower support frame part 13, the inner end face of the screw part II 63 contacts the outer end face of the block part II 61, so that the inner end face of the block part II 61 acts on the lower end face of the barrel part II 21, the screw barrel part 72 is placed in the receiving hole body located on the front and rear end face of the end plate part 14, the nut part II 71 is connected to the front and rear end face of the end plate part 14, the screw barrel part 72 is rotated in the nut part II 71, and the outer end face of the block part III 73 acts on the front and rear end face of the barrel part II 21,

[0066] When it is necessary to support the engineering vehicle off the ground, the lateral thrust cylinder rod 3 is in an extended state, and the lateral thrust cylinder rod 3 drives the cylinder part II 21 to move outward in the cylinder part I 11, so that the cylinder part II 21 contacts the block part I 51, the block part II 61 and the block part III 73. When the inner induction switch 8 receives the induction head signal located on the inner end of the trigger rod 91, the lateral thrust cylinder rod 3 stops extending through the controller, so that the outer cylinder shell 1 and the inner cylinder shell 2 are in an expanded state, and the telescopic cylinder part 41 is in an extended state, so that the engineering vehicle is lifted. When the engineering vehicle is supported off the ground, the telescopic cylinder part 41 is in a In the retracted state, put the engineering vehicle on the ground, so that the lateral thrust cylinder rod 3 is in the retracted state, and the lateral thrust cylinder rod 3 drives the cylinder part II 21 to move inward in the cylinder part I 11, so that the cylinder part II 21 contacts with the block part I 51, the block part II 61 and the block part III 73. When the external induction switch 9 receives the induction head signal located on the inner end of the trigger rod 91, the lateral thrust cylinder rod 3 is stopped from retracting through the controller, so that the outer cylinder shell 1 and the inner cylinder shell 2 are in the retracted state, the upper slider part 22 and the side slider part 23 contact with the inner side of the inner end surface of the end plate part 14, and the plate part 42 contacts with the frame of the engineering vehicle.

[0067] When verifying the utility model, the inventor abandoned the existing technical features of directly installing the inner cylinder shell in the outer cylinder shell, which would make the gap difficult to control, and first proposed a technical feature of locally closing the movement gap to eliminate the first unexpected technical effect: achieving gapless guided movement of the inner cylinder shell 2, the second unexpected technical effect: achieving support for the inner cylinder shell 2 by the adjusting splint, the third unexpected technical effect: achieving automatic control of the movement stroke between the inner cylinder shell 2 and the outer cylinder shell 1, and the fourth unexpected technical effect: achieving extreme position fixing by the upper slider portion 22, the side slider portion 23 and the sticking plate portion 42, thereby ensuring the relative position stability between the inner cylinder shell 2 and the outer cylinder shell 1.

[0068] In the second embodiment of the utility model, the main body of the leg extension and retracting device and the adjusting pad block group are connected to each other in a manner of partially closing and eliminating the movement gap.

[0069] In this embodiment, the adjusting pad block group is connected to the main body of the leg extension and retracting device in a manner of embracing support.

[0070] In this embodiment, the main body of the leg extension and retracting device is configured to further include a lateral thrust cylinder rod 3 and a lifting and telescopic cylinder rod 4.

[0071] In this embodiment, the adjusting pad block group is configured to include an upper adjusting pad block 5 , a lower adjusting pad block 6 and a side adjusting pad block 7 .

[0072] In this embodiment, a first accessory device is further included and is arranged on the main body of the leg extension and retracting device. The first accessory device is arranged to include an inner sensing switch 8 , an outer sensing switch 9 and a trigger rod 91 .

[0073] The second embodiment of the present utility model is based on the first embodiment.

[0074] The utility model has the following characteristics:

[0075] 1. Due to the design of the main body of the leg extension and retractable device and the adjusting pad group, the engineering vehicle can be supported off the ground through the main body of the leg extension and retractable device, and the inner cylinder shell 2 can be supported on the outer cylinder shell 1 by adjusting the pad group, so that the movement gap can be partially eliminated, which solves the technical problem that the gap is difficult to control when the inner cylinder shell is directly installed in the outer cylinder shell, thereby improving the use effect of the leg extension and retractable device.

[0076] 2. Due to the design of the outer cylinder shell 1, the inner cylinder shell 2, the lateral thrust cylinder rod 3 and the lifting and telescopic cylinder rod 4, the outward extension state support of the engineering vehicle is achieved.

[0077] 3. Due to the design of the upper adjustment pad 5, the lower adjustment pad 6 and the side adjustment pad 7, the inner cylinder shell 2 is clamped and supported.

[0078] 4. Due to the design of the inner sensing switch 8, the outer sensing switch 9 and the trigger rod 91, the expansion and contraction position between the outer cylinder shell 1 and the inner cylinder shell 2 can be controlled.

[0079] 5. Since the design limits the numerical range of the structural shape, the numerical range is the technical feature in the technical solution of the utility model, and is not a technical feature calculated by formula or obtained through a limited number of tests. Tests have shown that the technical features of this numerical range have achieved good technical effects.

[0080] 6. Due to the design of the technical features of the utility model, the effects of the individual and combined technical features have been shown through experiments to have various performance indicators of the utility model that are at least 1.7 times the existing performance indicators, and the evaluation shows that the utility model has a good market value.

[0081] There are other technical features that are connected to the main body of the unfolding and retracting leg device and the adjusting pad group for locally eliminating the movement gap, which are all embodiments of the utility model, and the technical features of the above-mentioned embodiments can be combined arbitrarily. In order to meet the requirements of the Patent Law, Patent Implementing Rules and Examination Guidelines, all possible combinations of the technical features in the above-mentioned embodiments will no longer be described.

[0082] Therefore, in the technical field of the leg extension and retractable device for engineering vehicles, all technical contents including the leg extension and retractable device body having an outer cylindrical shell 1 and an inner cylindrical shell 2, and an adjustment pad group arranged between the outer cylindrical shell 1 and the inner cylindrical shell 2 are within the protection scope of the present utility model.

Claims

1. A leg extension and retraction device for an engineering vehicle, characterized in that: The invention comprises a main body of a leg extension and retraction device having an outer cylindrical shell (1) and an inner cylindrical shell (2), and an adjusting pad block group arranged between the outer cylindrical shell (1) and the inner cylindrical shell (2). The main body of the leg extension and retraction device is configured to further include a transverse thrust cylinder rod (3) and a lifting and telescopic cylinder rod (4). The adjusting pad block group is configured to include an upper adjusting pad block (5), a lower adjusting pad block (6) and a side adjusting pad block (7). It also includes a first accessory device and the first accessory device is arranged on the main body of the leg extension and retraction device. The first accessory device is arranged to include an inner sensing switch (8), an outer sensing switch (9) and a trigger rod (91). An inner cylinder shell (2) is arranged between an outer cylinder shell (1) and a lifting and telescopic cylinder rod (4); a transverse thrust cylinder rod (3), an upper adjustment pad (5), a lower adjustment pad (6) and a side adjustment pad (7) are arranged between the outer cylinder shell (1) and the inner cylinder shell (2); an inner induction switch (8) and an outer induction switch (9) are respectively arranged on the inner cylinder shell (2); and a trigger rod (91) is arranged between the transverse thrust cylinder rod (3) and the inner induction switch (8) and the outer induction switch (9).

2. The outrigger device for engineering vehicles according to claim 1, characterized in that: The main body of the leg extension and retracting device and the adjusting pad block group are connected to each other in a manner of partially closing and eliminating the movement gap.

3. The outrigger device for engineering vehicles according to claim 2, characterized in that: The adjusting pad block group is connected to the main body of the unfolding and retracting leg device in a manner of carrying out an embracing support.

4. The outrigger device for engineering vehicles according to claim 1, characterized in that: The outer cylinder shell (1) is arranged to include a cylinder part I (11), an upper support frame part (12), a lower support frame part (13) and an end plate part (14), and the end face part of the cylinder part I (11) is arranged to be connected to the outer side part of the inner end face of the end plate part (14). The upper end face part of the end plate part (14) and the upper part of the side face of the end plate part (14) are respectively arranged to be connected to the inner wall of the upper support frame part (12), and the lower end face part of the end plate part (14) is arranged to be connected to the vertical end of the lower support frame part (13). The cylinder part I (11) is respectively arranged to be connected in a receiving manner to the inner cylinder shell (2), the transverse thrust cylinder rod (3) and the trigger rod (91), and the inner side part of the inner end face of the end plate part (14) is arranged to be connected in a contacting manner to the inner cylinder shell (2). The upper support frame part (12) is arranged to be connected to the upper adjusting cushion block (5), and the lower support frame part (13) is arranged to be connected to the lower adjusting cushion block (6). The front and rear end face parts of the end plate part (14) are arranged to be connected to the side adjusting cushion blocks (7). The cylinder part I (11) is arranged as a rectangular tubular body and is arranged to be connected to the frame of the engineering vehicle. The upper support frame part (12) and the lower support frame part (13) are respectively arranged as C-shaped块状 bodies with threaded hole bodies in their longitudinal parts. The end plate part (14) is arranged as a rectangular tubular body with receiving hole bodies in the middle part of the upper end face, the middle part of the upper end face and the front and rear end face parts, and the receiving hole bodies located on the front and rear end face parts of the end plate part (14) are arranged to be connected to the side adjusting cushion blocks (7). The threaded hole bodies located on the upper support frame part (12) and the receiving hole bodies located on the upper end face part of the end plate part (14) are respectively arranged to be connected to the upper adjusting cushion block (5), and the threaded hole bodies located on the lower support frame part (13) and the receiving hole bodies located on the lower end face part of the end plate part (14) are respectively arranged to be connected to the lower adjusting cushion block (6). Alternatively, the inner cylinder shell (2) is configured to include a cylinder portion II (21), an upper slider portion (22) and a side slider portion (23), and the inner end portion of the upper end surface of the cylinder portion II (21) is configured to be connected to the inner end surface portion of the upper slider portion (22), the inner end portion of the side end surface of the cylinder portion II (21) is configured to be connected to the inner end surface portion of the side slider portion (23), and the cylinder portion II (21) is configured to be connected to the outer cylinder shell (1) in a through-type manner, the outer side portion of the inner wall of the cylinder portion II (21) is configured to be connected to the transverse thrust cylinder rod (3), and the inner side of the inner wall of the cylinder portion II (21) is configured to be connected to the inner induction switch (8), the inner side portion of the inner wall of the cylinder portion II (21) is configured to be connected to the outer induction switch (9), and the cylinder portion II (21) is configured to be connected to the outer induction switch (9). ) is configured to be accommodatingly connected to the trigger rod (91), the outer end portion of the barrel portion II (21) is configured to be connected to the lifting and telescopic cylinder rod (4), and the upper end surface portion of the barrel portion II (21) is configured to be contact-connected to the upper adjustment pad (5), the lower end surface portion of the barrel portion II (21) is configured to be contact-connected to the lower adjustment pad (6), and the front and rear end surfaces of the barrel portion II (21) are configured to be contact-connected to the side adjustment pad (7), the outer end surface portion of the upper slider portion (22) and the outer end surface portion of the side slider portion (23) are respectively configured to be contact-connected to the outer barrel shell (1), and the barrel portion II (21) is configured to be a rectangular tubular body, and the upper slider portion (22) and the side slider portion (23) are respectively configured to be seat-shaped bodies, Alternatively, the lateral thrust cylinder rod (3) is configured as an electric push rod and the lateral thrust cylinder rod (3) is configured to be through-connected to the outer cylinder shell (1) and the inner cylinder shell (2), respectively; the inner end of the lateral thrust cylinder rod (3) is configured to be connected to the inner cylinder shell (2) and the outer end of the peripheral side of the lateral thrust cylinder rod (3) is configured to be connected to the trigger rod (91); and the outer end of the lateral thrust cylinder rod (3) is configured to be connected to the frame of the engineering vehicle.

5. The outrigger device for engineering vehicles according to claim 1, characterized in that: The lifting telescopic cylinder rod (4) is configured to include a telescopic cylinder part (41), a plate part (42) and a support part (43), and the upper part of the outer shell peripheral side surface of the telescopic cylinder part (41) is configured to be connected to the plate part (42), the lower part of the outer shell peripheral side surface of the telescopic cylinder part (41) is configured to be connected to the support part (43), and the middle part of the outer shell peripheral side surface of the telescopic cylinder part (41) is configured to be connected to the inner cylinder shell (2), the support part (43) is configured to be connected to the inner cylinder shell (2) through a connecting rod, and the plate part (42) is configured to be contact-connected to the frame of the engineering vehicle, the telescopic cylinder part (41) is configured to be a two-section telescopic cylinder, and the hydraulic port part of the telescopic cylinder part (41) is configured to be connected to the output hydraulic port part of the engineering vehicle, the plate part (42) is configured to be a block-shaped body, and the support part (43) is configured to be a cylindrical body.

6. The outrigger device for engineering vehicles according to claim 1, characterized in that: The upper adjustment pad (5) is configured to include a block portion I (51) and a screw portion I (52), and the inner end of the screw portion I (52) is configured to be threadedly connected to the outer end face portion of the block portion I (51), the outer end of the screw portion I (52) is configured to be threadedly connected to the outer cylinder shell (1), and the block portion I (51) is configured to be sunk into the outer cylinder shell (1), the inner end face portion of the block portion I (51) is configured to be contact-connected to the inner cylinder shell (2), and the block portion I (51) is configured to be a seat-shaped body having a threaded hole body on the outer end face portion, the threaded hole body of the block portion I (51) is configured to be connected to the screw portion I (52), and the screw portion I (52) is configured to be a hexagon socket bolt, and the screw portion I (52) is configured to be arranged and distributed at intervals along the transverse center line of the block portion I (51), Or, the lower adjustment pad (6) is configured to include a block portion II (61), a nut portion I (62) and a screw portion II (63), and the block portion II (61) is configured to be sunk in connection with the outer cylindrical shell (1), the inner end surface portion of the block portion II (61) is configured to be contact-connected with the inner cylindrical shell (2), and the outer end surface portion of the block portion II (61) is configured to be contact-connected with the inner end surface portion of the screw portion II (63), the screw portion II (63) is configured to be threadedly connected to the nut portion I (62) and the outer cylindrical shell (1), and the inner end surface portion of the nut portion I (62) is configured to be contact-connected with the outer cylindrical shell (1), the block portion II (61) is configured to be a seat-shaped body, and the nut portion I (62) is configured to be a hexagonal nut, the screw portion II (63) is configured to be a hexagonal bolt, and the screw portion II (63) is configured to be arranged and distributed at intervals along the transverse center line of the block portion II (61), Alternatively, the side adjustment pad (7) is configured to include a nut portion II (71), a screw barrel portion (72), a block portion III (73) and a screw portion III (74), and the screw barrel portion (72) is configured to be threadedly connected to the nut portion II (71), the inner end port portion of the screw barrel portion (72) is configured to be accommodatingly connected to the block portion III (73), and the screw portion III (74) is configured to be threadedly connected to the vertical portion of the screw barrel portion (72) and the inner end face portion of the block portion III (73), the inner end face portion of the nut portion II (71) is configured to be connected to the outer cylinder shell (1), and the screw barrel portion (72) is configured to be through-connected to the outer cylinder shell (1). The outer end face portion of the block portion III (73) is configured to be contact-connected with the inner cylinder shell (2) and the nut portion II (71) is configured to be a disc-shaped body having a threaded hole body, the screw barrel portion (72) is configured to be a tubular body having a middle vertical portion and an outer peripheral side portion having a threaded body and the block portion III (73) is configured to be a columnar body having a threaded hole body on the inner end face portion, the screw portion III (74) is configured to be a hexagon socket bolt and the threaded hole body of the nut portion II (71) is configured to be connected to the threaded body of the screw barrel portion (72), and the middle vertical portion of the screw barrel portion (72) and the threaded hole body of the block portion III (73) are respectively configured to be connected to the screw portion III (74).

7. The outrigger device for engineering vehicles according to claim 1, characterized in that: The trigger rod (91) is configured as a rod-shaped body and is respectively configured to be connected to the outer cylindrical shell (1) and the inner cylindrical shell (2) in a through-type manner; the outer end of the trigger rod (91) is configured to be connected to the transverse thrust cylinder rod (3) and the inner end of the trigger rod (91) is respectively configured to be distributed correspondingly to the inner induction switch (8) and the outer induction switch (9); Alternatively, the inner induction switch (8) and the outer induction switch (9) are respectively configured as infrared induction switches, and the housing of the inner induction switch (8) and the housing of the outer induction switch (9) are respectively configured to be connected to the inner cylindrical shell (2), and the induction head of the inner induction switch (8) and the induction head of the outer induction switch (9) are configured to be connected to the trigger rod (91).

8. The outrigger device for an engineering vehicle according to any one of claims 1 to 7, characterized in that: The outer cylinder shell (1), the inner cylinder shell (2), the lateral thrust cylinder rod (3), the lifting and telescopic cylinder rod (4), the upper adjustment pad (5), the lower adjustment pad (6), and the side adjustment pad (7) are arranged to be distributed in the manner of a clamping opening, and the outer cylinder shell (1), the inner cylinder shell (2), the lateral thrust cylinder rod (3), the lifting and telescopic cylinder rod (4), the upper adjustment pad (5), the lower adjustment pad (6), and the side adjustment pad (7) are arranged to be distributed in the manner of controlling a lateral position, Alternatively, the center line of the outer cylinder shell (1), the center line of the inner cylinder shell (2), the center line of the lateral thrust cylinder rod (3) and the center line of the trigger rod (91) are arranged on the same straight line, two side adjustment pads (7) are arranged between the outer cylinder shell (1) and the inner cylinder shell (2), the telescopic cylinder part (41), the block part III (73), the block part II (61) and the block part I (51) are arranged to be connected to the cylinder part II (21), the screw cylinder part (72) is arranged to be connected to the receiving hole body located on the front and rear end surface parts of the end plate part (14), and the nut part II (71) is arranged The block portion II (61) is connected to the front and rear end face portions of the end plate portion (14), the block portion II (61) is configured to be connected to the accommodating hole body located on the lower end face portion of the end plate portion (14), the screw portion II (63) is configured to be connected to the threaded hole body located on the lower support frame portion (13), the nut portion I (62) is configured to be connected to the outer end face portion of the lower support frame portion (13), the block portion I (51) is configured to be connected to the accommodating hole body located on the upper end face portion of the end plate portion (14), and the screw portion I (52) is configured to be connected to the threaded hole body located on the upper support frame portion (12).

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