Pull rod device for insulated boom truck

Abstract

A pull rod device for an insulated boom truck comprises a section rod I (52) used for being connected with a middle connecting base, a section rod II (57) used for being connected with a lug base located on a telescopic boom and a middle pipe (51) arranged between the section rod I (52) and the section rod II (57), and middle connection of the section rod I (52) and the section rod II (57) is achieved through the middle pipe (51). Through the section rod I (52) and the section rod II (57), the section rod I (52) and the section rod II (57) are rotationally connected with the middle connecting base and the lug base located on the telescopic arm respectively, the rotating beam body is installed between the middle connecting base and the lug base located on the telescopic arm for front point supporting, and the technical problem that a telescopic cylinder is used for conducting middle point supporting on the telescopic arm is solved; therefore, the supporting strength of the telescopic arm is improved.

Description

Technical Field

[0001] The utility model relates to a pull rod device, in particular to a pull rod device used for an insulating bucket arm vehicle. Background Art

[0002] The insulated boom truck is a special vehicle that performs intermediate potential operations in places with convenient transportation and complex wiring. In order to meet the intermediate potential operation range of the upper device at high altitude, a working bucket is required to provide overhead support for the operator. The telescopic arm is used to provide overhead support for the working bucket. In order to ensure the supporting strength of the folded telescopic arm, a pull rod device needs to be installed between the telescopic arm and the middle connecting seat. Therefore, the pull rod device for the insulated boom truck is an important component of the insulated boom truck. In the existing insulated boom trucks, there is no pull rod device for the insulated boom truck, and the telescopic cylinder is used to support the telescopic arm at the middle point, which affects the supporting strength of the telescopic arm.

[0003] The utility model has the technical feature of installing a rotating beam body between the middle connecting seat and the ear seat on the telescopic arm for front point support, and has carried out effective exploration and research on the technical problem of using a telescopic cylinder to support the middle point of the telescopic arm at the technical level.

[0004] The statements here only provide background technology related to the utility model and do not necessarily constitute prior art. The technical solution of the application of the present invention is made based on the technical briefing document provided by the applicant on April 26, 2024, which solves actual technical problems in the work process, and the existing technical problems, technical features and technical effects in the similar patent literature and background technology obtained through retrieval. Summary of the invention

[0005] The object of the utility model is a pull rod device used for an insulating bucket arm vehicle.

[0006] In order to overcome the above technical shortcomings, the purpose of the utility model is to provide a pull rod device for an insulated bucket arm truck, thereby improving the supporting strength of the telescopic arm.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is: it includes a section rod I for connecting with the middle connecting seat, a section rod II for connecting with the ear seat located on the telescopic arm, and an intermediate tube arranged between the section rods I and II.

[0008] Due to the design of the section rod I, section rod II and the intermediate tube, the intermediate connection of the section rod I and the section rod II is achieved through the intermediate tube, and the rotation connection with the intermediate connecting seat and the ear seat on the telescopic arm is achieved through the section rod I and the section rod II, respectively, so that the rotating beam body is installed between the intermediate connecting seat and the ear seat on the telescopic arm for front point support, which solves the technical problem of using the telescopic cylinder to provide intermediate point support for the telescopic arm, thereby improving the supporting strength of the telescopic arm.

[0009] The utility model is designed to connect the section rod I, the section rod II and the middle pipe to each other in a way that a rotating beam body is installed between the middle connecting seat and the ear seat located on the telescopic arm for front point support.

[0010] The utility model is designed to connect the section rod I and the section rod II with the middle pipe in a manner of being rotatably connected with the middle connecting seat and the ear seat located on the telescopic arm.

[0011] The technical effects of the above three technical solutions are: highlighting the technical feature of installing a rotating beam between the middle connecting seat and the ear seat on the telescopic arm for front point support, and introducing the application in the technical field of the pull rod device for the insulated bucket truck.

[0012] The utility model is designed to further include a first accessory device, and the first accessory device is arranged on the section rod I. The first accessory device is arranged to include an insert shaft I, a pressure plate I, a shaft sleeve, a connecting screw rod I and a connecting screw rod II.

[0013] The utility model is designed to further include a second accessory device, and the second accessory device is arranged on the segment rod II, and the second accessory device is arranged to include an inserting shaft II, a pressing plate II and a connecting screw III.

[0014] The technical effects of the above two technical solutions are: realizing the integrated installation of other components and expanding the technical effects of the utility model.

[0015] The utility model is designed that a shaft sleeve is arranged on an insertion shaft I, a section rod I and a pressure plate I are respectively arranged on the shaft sleeve, a connecting screw rod I is arranged between the shaft sleeve and the pressure plate I, a connecting screw rod II is arranged on the pressure plate I and the section rod I, and a section rod II and a pressure plate II are respectively arranged on the insertion shaft II, a connecting screw rod III is arranged on the pressure plate II and the section rod II, and an intermediate tube is arranged between the section rod I and the section rod II.

[0016] The technical effect of the above technical scheme is that the intermediate tube, section rod Ⅰ, plug shaft Ⅰ, pressure plate Ⅰ, sleeve, connecting screw Ⅰ, connecting screw Ⅱ, section rod Ⅱ, plug shaft Ⅱ, pressure plate Ⅱ and connecting screw Ⅲ constitute the basic technical scheme of the utility model and solve the technical problem of the utility model.

[0017] The utility model is designed such that the middle pipe is arranged as a cylindrical body, and one of the port parts of the middle pipe is arranged to be connected to the first joint rod through a pin shaft, and the other port part of the middle pipe is arranged to be connected to the second joint rod through a pin shaft.

[0018] The utility model is designed such that the first joint rod is arranged as a beam-shaped body with a U-shaped bayonet body, a central hole body and an arc-shaped strip hole body centered on the central hole body at the outer end. The U-shaped bayonet body of the first joint rod is arranged to be connected to the middle connecting seat, and the central hole body of the first joint rod is arranged to be connected to the shaft sleeve. The arc-shaped strip hole body of the first joint rod is arranged to be connected to the second connecting screw, and the outer end face of the outer end of the first joint rod is arranged to be in contact connection with the first pressing plate. The inner end of the first joint rod is arranged to be connected to the middle pipe through a connecting bolt and nut.

[0019] The utility model is designed such that the second joint rod is arranged as a beam-shaped body with a U-shaped bayonet body, a central hole body and an arc-shaped strip hole body centered on the central hole body at the outer end, and the U-shaped bayonet body of the second joint rod is arranged to be connected to the ear seat on the telescopic arm. The central hole body of the second joint rod is arranged to be connected to the second insertion shaft, and the arc-shaped strip hole body of the second joint rod is arranged to be connected to the third connecting screw. The outer end face of the outer end of the second joint rod is arranged to be in contact connection with the second pressing plate, and the inner end of the second joint rod is arranged to be connected to the middle pipe through a connecting bolt and nut.

[0020] The technical effects of the above three technical solutions are as follows: A three-joint rod with a rotating hole body at the end is realized, which facilitates the installation of the first joint rod and the second joint rod to the middle pipe.

[0021] The utility model is designed such that the first insertion shaft is arranged as a stepped rod-shaped body with a middle expansion part, and the middle part of the first insertion shaft is arranged to be connected to the middle connecting seat in a penetrating manner, and the end of the first insertion shaft is arranged to be connected to the shaft sleeve in a penetrating manner.

[0022] The utility model is designed such that the shaft sleeve is arranged as a T-shaped cylindrical body with an eccentric transverse pipe body and a vertical disk body with an opening groove body, and the opening groove body of the shaft sleeve is arranged to be connected to the first connecting screw. The transverse pipe bodies of the shaft sleeve are respectively arranged to be connected to the first joint rod and the first pressing plate in a penetrating manner, and the inner end face of the vertical disk body of the shaft sleeve is arranged to be connected to the first pressing plate part, and the outer end face of the vertical disk body of the shaft sleeve is arranged to be in contact connection with the first connecting screw.

[0023] The utility model is designed such that the first pressing plate is arranged as a sheet body with a central through hole body and peripheral threaded hole bodies. The central through hole body of the first pressing plate is arranged to be connected to the shaft sleeve, and the peripheral threaded hole bodies of the first pressing plate are respectively arranged to be connected to the first connecting screw and the second connecting screw. The inner end face of the first pressing plate part is arranged to be in contact with the outer end of the first joint rod, and the outer end face of the first pressing plate part is arranged to be in contact connection with the shaft sleeve.

[0024] The utility model is designed that the connecting screw rod I is arranged as a hexagonal bolt and is arranged to be connected with the shaft sleeve in a through-type manner, the inner end of the connecting screw rod I is arranged to be connected with the pressing plate I in a threaded manner, and the flange body of the connecting screw rod I is arranged to be connected with the shaft sleeve in a contact manner.

[0025] The utility model is designed that the connecting screw rod II is arranged as a hexagonal bolt and the inner end head of the connecting screw rod II is arranged to be threadedly connected with the pressure plate I and the middle connecting seat respectively, the inner end head of the connecting screw rod II is arranged to be through-connected with the section rod I, and the flange body of the connecting screw rod II is arranged to be contact-connected with the pressure plate I.

[0026] The technical effects of the above five technical solutions are: achieving eccentric shaft-tube connection and adjusting the installation position of the segment rod I.

[0027] The utility model is designed that the plug shaft II is set as a stepped rod-shaped body with a middle expansion part, and the middle part of the plug shaft II is respectively set to be through-connected with the outer end of the section rod II and the ear seat located on the telescopic arm, and the end of the plug shaft II is set to be through-connected with the pressure plate II.

[0028] The utility model is designed that the pressing plate II is arranged as a sheet body with a central through hole body and a peripheral through hole body, and the central through hole body of the pressing plate II is arranged to be connected with the plug shaft II, the peripheral through hole body of the pressing plate II is arranged to be connected with the connecting screw III, the inner end surface part of the pressing plate II is arranged to be contact-connected with the outer end head of the section rod II, and the outer end surface part of the pressing plate II is arranged to be contact-connected with the connecting screw III.

[0029] The utility model is designed that the connecting screw rod III is arranged as a hexagonal bolt and the end of the connecting screw rod III is arranged to be connected with the outer end of the pressure plate II and the section rod II in a through-type connection, the inner end of the connecting screw rod III is arranged to be connected with the ear seat located on the telescopic arm in a threaded manner, and the flange body of the connecting screw rod III is arranged to be connected with the pressure plate II in a contact manner.

[0030] The technical effects of the above three technical solutions are: achieving concentric shaft tube connection and achieving precise positioning of the installation position of the segment rod II.

[0031] The utility model is designed that the intermediate tube and the section rods I and II are arranged to be distributed in the manner of three section rods, and the intermediate tube, the section rods I and II, the plug shaft I, the pressure plate I, the bushing, the connecting screw rods I and II are arranged to be distributed in the manner of an eccentric connecting head, and the intermediate tube, the section rods I and II, the plug shaft II, the pressure plate II and the connecting screw rods III are arranged to be distributed in the manner of a concentric connecting head.

[0032] The utility model is designed that a pressure plate I, a shaft sleeve, a connecting screw rod I and two connecting screw rods II are arranged to form a group of eccentric components, and the two groups of eccentric components are respectively arranged between the section rod I and the plug shaft I; a pressure plate II and two connecting screw rods III are arranged to form a group of concentric components, and the two groups of concentric components are arranged between the section rod II and the plug shaft II.

[0033] In the technical solution, the installation of a rotating beam body between the middle connecting seat and the ear seat on the telescopic arm for front point support is realized by the section rod I and the section rod II.

[0034] In the present technical solution, segment rod I, segment rod II and intermediate tube for front point support of the rotating beam body installed between the middle connecting seat and the ear seat on the telescopic arm are important technical features. In the technical field of the pull rod device for the insulated bucket truck, 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 for Figure 1 A top view of

[0038] Figure 3 Schematic diagram of the connection relationship between the segment rod Ⅰ52, the plug shaft Ⅰ53, the pressure plate Ⅰ54 and the shaft sleeve 50,

[0039] Intermediate tube-51, section rod Ⅰ-52, plug shaft Ⅰ-53, pressure plate Ⅰ-54, sleeve-50, connecting screw Ⅰ-55, connecting screw Ⅱ-56, section rod Ⅱ-57, plug shaft Ⅱ-58, pressure plate Ⅱ-59, connecting screw Ⅲ-501. 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 1This is the first embodiment of the present utility model. With reference to the accompanying drawings, this embodiment will be specifically described. It includes an intermediate tube 51, a rod section I 52, an insertion shaft I 53, a pressing plate I 54, a shaft sleeve 50, a connecting screw I 55, a connecting screw II 56, a rod section II 57, an insertion shaft II 58, a pressing plate II 59, and a connecting screw III 501. And a shaft sleeve 50 is provided on the insertion shaft I 53. A rod section I 52 and a pressing plate I 54 are respectively provided on the shaft sleeve 50, and a connecting screw I 55 is provided between the shaft sleeve 50 and the pressing plate I 54. A connecting screw II 56 is provided on the pressing plate I 54 and the rod section I 52. A rod section II 57 and a pressing plate II 59 are respectively provided on the insertion shaft II 58. A connecting screw III 501 is provided on the pressing plate II 59 and the rod section II 57. And an intermediate tube 51 is provided between the rod section I 52 and the rod section II 57.

[0046] In this embodiment, the insertion shaft I 53 is set as a stepped rod-shaped body with an intermediate expansion part, the middle part of the insertion shaft I 53 is set to be in a through connection with the intermediate connecting seat, and the end of the insertion shaft I 53 is set to be in a through connection with the shaft sleeve 50.

[0047] Through the insertion shaft I 53, a support connection point for the shaft sleeve 50 is formed. By the insertion shaft I 53, the connection with the shaft sleeve 50 is realized. Its technical purpose is: to be used as a support carrier for the shaft sleeve 50.

[0048] In this embodiment, the shaft sleeve 50 is set as a T-shaped cylindrical body with an eccentric transverse tube body and a vertical disk body having an open groove body. The open groove body of the shaft sleeve 50 is set to be connected with the connecting screw I 55. The transverse tube body of the shaft sleeve 50 is respectively set to be in a through connection with the rod section I 52 and the pressing plate I 54. The inner end face part of the vertical disk body of the shaft sleeve 50 is set to be connected with the pressing plate part I 54. The outer end face part of the vertical disk body of the shaft sleeve 50 is set to be in a contact connection with the connecting screw I 55.

[0049] Through the shaft sleeve 50, support connection points for the rod section I 52, the pressing plate I 54, and the connecting screw I 55 are formed. By the shaft sleeve 50, the connection with the rod section I 52 is realized, the connection with the pressing plate I 54 is realized, and the connection with the connecting screw I 55 is realized. Its technical purpose is: to be used as a support carrier for the rod section I 52.

[0050] In this embodiment, the rod section I 52 is set as a beam-shaped body with a U-shaped bayonet body, a central hole body, and an arc-shaped strip hole body centered on the central hole body at the outer end. The U-shaped bayonet body of the rod section I 52 is set to be connected with the intermediate connecting seat. The central hole body of the rod section I 52 is set to be connected with the shaft sleeve 50. The arc-shaped strip hole body of the rod section I 52 is set to be connected with the connecting screw II 56. The outer end face part of the outer end of the rod section I 52 is set to be in a contact connection with the pressing plate I 54. The inner end of the rod section I 52 is set to be connected with the intermediate tube 51 through connecting bolts and nuts.

[0051] Through the joint rod I 52, support connection points for the intermediate pipe 51, the bushing 50, the pressing plate I 54, and the connecting screw rod II 56 are formed. By means of the joint rod I 52, the connection with the intermediate pipe 51 is achieved, the connection with the bushing 50 is achieved, the connection with the pressing plate I 54 is achieved, and the connection with the connecting screw rod II 56 is achieved. Its technical purpose is: to be used as a component for connecting with the intermediate connection seat.

[0052] In this embodiment, the pressing plate I 54 is set as a sheet body having a central through-hole body and a peripheral threaded hole body. The central through-hole body of the pressing plate I 54 is set to be coupled with the bushing 50, and the peripheral threaded hole bodies of the pressing plate I 54 are respectively set to be coupled with the connecting screw rod I 55 and the connecting screw rod II 56. The inner end face portion of the pressing plate portion I 5 is set to be in contact with the outer end of the joint rod I 52, and the outer end face portion of the pressing plate portion I 5 is set to be in contact connection with the bushing 50.

[0053] Through the pressing plate I 54, support connection points for the joint rod I 52, the bushing 50, the connecting screw rod I 55, and the connecting screw rod II 56 are formed. By means of the pressing plate I 54, the connection with the joint rod I 52 is achieved, the connection with the bushing 50 is achieved, the connection with the connecting screw rod I 55 is achieved, and the connection with the connecting screw rod II 56 is achieved. Its technical purpose is: to be used as a component for supporting the bushing 50.

[0054] In this embodiment, the connecting screw rod I 55 is set as a hexagonal bolt and the connecting screw rod I 55 is set to be in a penetrating connection with the bushing 50. The inner end of the connecting screw rod I 55 is set to be in a threaded connection with the pressing plate I 54, and the flange body of the connecting screw rod I 55 is set to be in contact connection with the bushing 50.

[0055] Through the connecting screw rod I 55, support connection points for the bushing 50 and the pressing plate I 54 are formed. By means of the connecting screw rod I 55, the connection with the bushing 50 is achieved, and the connection with the pressing plate I 54 is achieved. Its technical purpose is: to be used as a component for connecting between the bushing 50 and the pressing plate I 54.

[0056] In this embodiment, the connecting screw rod II 56 is set as a hexagonal bolt and the inner ends of the connecting screw rod II 56 are respectively set to be in a threaded connection with the pressing plate I 54 and the intermediate connection seat. The inner end of the connecting screw rod II 56 is set to be in a penetrating connection with the joint rod I 52, and the flange body of the connecting screw rod II 56 is set to be in contact connection with the pressing plate I 54.

[0057] Through the connecting screw rod II 56, support connection points for the joint rod I 52 and the pressing plate I 54 are formed. By means of the connecting screw rod II 56, the connection with the joint rod I 52 is achieved, and the connection with the pressing plate I 54 is achieved. Its technical purpose is: to be used as a component for connecting between the pressing plate I 54 and the intermediate connection seat.

[0058] In this embodiment, the plug-in shaft II 58 is configured as a stepped rod-shaped body with an intermediate extension portion, and the intermediate portion of the plug-in shaft II 58 is configured to be through-connected with the outer end of the section rod II 57 and the ear seat located on the telescopic arm, and the end of the plug-in shaft II 58 is configured to be through-connected with the pressure plate II 59.

[0059] Through the insertion shaft Ⅱ58, a support connection point for the segment rod Ⅱ57 and the pressure plate Ⅱ59 is formed. The insertion shaft Ⅱ58 realizes the connection with the segment rod Ⅱ57 and the connection with the pressure plate Ⅱ59. Its technical purpose is to serve as a support carrier for the segment rod Ⅱ57 and the pressure plate Ⅱ59.

[0060] In this embodiment, the pressure plate II59 is configured as a sheet body having a central through hole body and a peripheral through hole body and the central through hole body of the pressure plate II59 is configured to be connected to the plug shaft II58, the peripheral through hole body of the pressure plate II59 is configured to be connected to the connecting screw III501, the inner end face portion of the pressure plate II59 is configured to be contact-connected to the outer end head of the section rod II57 and the outer end face portion of the pressure plate II59 is configured to be contact-connected to the connecting screw III501.

[0061] A supporting connection point for the segment rod Ⅱ57, the plug shaft Ⅱ58 and the connecting screw Ⅲ501 is formed by the pressure plate Ⅱ59. The connection with the segment rod Ⅱ57, the plug shaft Ⅱ58 and the connecting screw Ⅲ501 is realized by the pressure plate Ⅱ59. The technical purpose is to serve as a component for connecting the segment rod Ⅱ57 and the plug shaft Ⅱ58.

[0062] In this embodiment, the connecting screw rod III501 is configured as a hexagonal bolt and the end of the connecting screw rod III501 is configured to be through-connected with the outer ends of the pressure plate II59 and the section rod II57, the inner end of the connecting screw rod III501 is configured to be threadedly connected with the ear seat located on the telescopic arm, and the flange body of the connecting screw rod III501 is configured to be contact-connected with the pressure plate II59.

[0063] By connecting screw III 501, a supporting connection point between section rod II 57 and pressure plate II 59 is formed. By connecting screw III 501, connection with section rod II 57 and connection with pressure plate II 59 are realized. Its technical purpose is to serve as a component for connecting pressure plate II 59 and the ear seat located on the telescopic arm.

[0064] In this embodiment, the second joint rod 57 is provided with a U-shaped bayonet body, a central hole body, and a beam-shaped body with an arc-shaped slot body centered on the central hole body at its outer end. The U-shaped bayonet body of the second joint rod 57 is set to be connected to the ear seat located on the telescopic arm. The central hole body of the second joint rod 57 is set to be connected to the second insertion shaft 58, and the arc-shaped slot body of the second joint rod 57 is set to be connected to the third connecting screw 501. The outer end face of the outer end of the second joint rod 57 is set to be in contact connection with the second pressing plate 59, and the inner end of the second joint rod 57 is set to be connected to the intermediate pipe 51 through connecting bolts and nuts.

[0065] Through the second joint rod 57, support connection points for the intermediate pipe 51, the second insertion shaft 58, the second pressing plate 59, and the third connecting screw 501 are formed. By the second joint rod 57, the connection with the intermediate pipe 51 is achieved, the connection with the second insertion shaft 58 is achieved, the connection with the second pressing plate 59 is achieved, and the connection with the third connecting screw 501 is achieved. Its technical purpose is: to be used as a component for connecting with the ear seat located on the telescopic arm.

[0066] In this embodiment, the intermediate pipe 51 is set as a cylindrical body, and one port part of the intermediate pipe 51 is set to be connected to the first joint rod 52 through a pin shaft, and the other port part of the intermediate pipe 51 is set to be connected to the second joint rod 57 through a pin shaft.

[0067] Through the intermediate pipe 51, support connection points for the first joint rod 52 and the second joint rod 57 are formed. By the intermediate pipe 51, the connection with the first joint rod 52 is achieved, and the connection with the second joint rod 57 is achieved. Its technical purpose is: to be used as a component for connecting between the first joint rod 52 and the second joint rod 57.

[0068] In this embodiment, the intermediate pipe 51, the first joint rod 52, and the second joint rod 57 are set to be distributed in the manner of three joint rods, and the intermediate pipe 51, the first joint rod 52, and the second joint rod 57 and the first insertion shaft 53, the first pressing plate 54, the shaft sleeve 50, the first connecting screw 55, and the second connecting screw 56 are set to be distributed in the manner of an eccentric connector. The intermediate pipe 51, the first joint rod 52, and the second joint rod 57 and the second insertion shaft 58, the second pressing plate 59, and the third connecting screw 501 are set to be distributed in the manner of a concentric connector. One first pressing plate 54, one shaft sleeve 50, one first connecting screw 55, and two second connecting screws 56 are set to form a set of eccentric components, and two sets of eccentric components are respectively arranged between the first joint rod 52 and the first insertion shaft 53. One second pressing plate 59 and two third connecting screws 501 are set to form a set of concentric components, and two sets of concentric components are arranged between the second joint rod 57 and the second insertion shaft 58.

[0069] Usage method of this embodiment: Place the U-shaped bayonet body of the joint rod I 52 on the middle connecting seat, install the plug shaft I 53 on the transverse pipe body of the sleeve 50 and the middle connecting seat, install the outer end of the joint rod I 52 and the pressing plate I 54 on the transverse pipe body of the sleeve 50, install the connecting screw rod I 55 in the opening slot of the sleeve 50 and the peripheral threaded hole body of the pressing plate I 54, install the connecting screw rod II 56 in the peripheral threaded hole body of the pressing plate I 54, the arc-shaped strip hole of the joint rod I 52 and the middle connecting seat, place the U-shaped bayonet body of the joint rod II 57 on the ear seat located on the telescopic arm, install the plug shaft II 58 in the central hole body of the joint rod II 57 and the ear seat located on the telescopic arm, install the pressing plate II 59 on the end of the plug shaft II 58, install the connecting screw rod III 501 in the peripheral through hole body of the pressing plate II 59, the arc-shaped strip hole of the joint rod II 57 and the ear seat located on the telescopic arm, rotate the connecting screw rod III 501 so that the flange bodies of the connecting screw rod III 501 act on the pressing plate II 59 respectively, rotate the connecting screw rod II 56 so that the flange body of the connecting screw rod II 56 acts on the pressing plate I 54, rotate the vertical disk body of the sleeve 50 to drive the transverse pipe body of the sleeve 50 to rotate, and adjust the position of the outer end of the joint rod I 52. After completing the adjustment of the position of the outer end of the joint rod I 52, rotate the connecting screw rod I 55 so that the flange body of the connecting screw rod I 55 acts on the vertical disk body of the sleeve 50.

[0070] When verifying the present utility model, the inventor abandoned the prior art feature of using a telescopic cylinder to support the middle point of the telescopic arm, and first proposed the technical feature of installing a rotating beam body between the middle connecting seat and the ear seat located on the telescopic arm for front-point support, obtaining the first unexpected technical effect: realizing the arrangement of front and rear support points on the telescopic arm, increasing the support strength of the telescopic arm, obtaining the second unexpected technical effect: improving the movement stability performance of the telescopic arm, improving the working performance of the telescopic arm, obtaining the third unexpected technical effect: realizing the adjustment of the installation of the eccentric pipe body on the joint rod I 52, meeting the installation length requirement between the ear seat located on the telescopic arm and the middle connecting seat, obtaining the fourth unexpected technical effect: realizing the concentric rotation of the shaft body, improving the rotation performance of the joint rod I 52 and the joint rod II 57.

[0071] In the second embodiment of the present utility model, the joint rod I 52, the joint rod II 57 and the middle pipe 51 are connected to each other in the manner of installing a rotating beam body between the middle connecting seat and the ear seat located on the telescopic arm for front-point support.

[0072] In this embodiment, the joint rod I 52 and the joint rod II 57 are connected to the middle pipe 51 in a manner of rotatably connecting with the middle connecting seat and the ear seat located on the telescopic arm.

[0073] In this embodiment, a first accessory device is also included and is arranged on the section rod Ⅰ52. The first accessory device is arranged to include an insertion shaft Ⅰ53, a pressure plate Ⅰ54, a sleeve 50, a connecting screw Ⅰ55 and a connecting screw Ⅱ56.

[0074] In this embodiment, a second accessory device is also included and is arranged on the segment rod II 57 . The second accessory device is arranged to include an insertion shaft II 58 , a pressure plate II 59 and a connecting screw III 501 .

[0075] The second embodiment of the present utility model is based on the first embodiment.

[0076] The utility model has the following characteristics:

[0077] 1. Due to the design of the section rod I 52, the section rod II 57 and the intermediate tube 51, the intermediate connection of the section rod I 52 and the section rod II 57 is realized through the intermediate tube 51, and the rotation connection with the intermediate connecting seat and the ear seat on the telescopic arm is realized through the section rod I 52 and the section rod II 57, respectively, and the installation of a rotating beam body between the intermediate connecting seat and the ear seat on the telescopic arm for front point support is realized, which solves the technical problem of using the telescopic cylinder to support the telescopic arm at the intermediate point, thereby improving the support strength of the telescopic arm.

[0078] 2. Due to the design of the plug shaft I53, the pressure plate I54, the shaft sleeve 50, the connecting screw rod I55 and the connecting screw rod II56, the eccentric position installation of the segment rod I52 is achieved.

[0079] 3. Due to the design of the plug shaft II 58, the pressure plate II 59 and the connecting screw III 501, the concentric position installation of the segment rod II 57 is achieved.

[0080] 4. 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.

[0081] 5. 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.

[0082] There are other technical features that are connected with the segment rod Ⅰ52, segment rod Ⅱ57 and the intermediate tube 51 for installing the rotating beam body between the middle connecting seat and the ear seat on the telescopic arm for front point support, which are all one of the embodiments of the present utility model, and the various technical features of the above-mentioned embodiments can be combined arbitrarily. In order to meet the requirements of the Patent Law, Patent Implementation Rules and Examination Guidelines, all possible combinations of the various technical features in the above-mentioned embodiments will no longer be described.

[0083] Therefore, in the technical field of pull rod devices for insulated boom trucks, all technical contents including a section rod Ⅰ52 for connecting to an intermediate connecting seat, a section rod Ⅱ57 for connecting to an ear seat on a telescopic arm, and an intermediate tube 51 arranged between the section rod Ⅰ52 and the section rod Ⅱ57 are within the protection scope of the present utility model.

Claims

1. A pull rod device for an insulated boom truck, characterized in that: It includes a section rod Ⅰ (52) for connecting with an intermediate connecting seat, a section rod Ⅱ (57) for connecting with an ear seat on the telescopic arm, and an intermediate pipe (51) arranged between the section rod Ⅰ (52) and the section rod Ⅱ (57).

2. The pull rod device for an insulated boom truck according to claim 1 is characterized in that: The section rod Ⅰ (52), the section rod Ⅱ (57) and the intermediate pipe (51) are interconnected in such a way that a rotating beam body is installed between the intermediate connecting seat and the ear seat on the telescopic arm for front-point support.

3. The pull rod device for an insulated bucket arm vehicle according to claim 2, characterized in that: The section rod Ⅰ (52) and the section rod Ⅱ (57) are connected to the intermediate pipe (51) in a way that they are rotatably connected to the intermediate connecting seat and the ear seat on the telescopic arm.

4. The pull rod device for an insulated boom truck according to claim 1 is characterized in that: It also includes a first accessory device, and the first accessory device is arranged on the section rod Ⅰ (52). The first accessory device is set to include a plug shaft Ⅰ (53), a pressing plate Ⅰ (54), a bushing (50), a connecting screw rod Ⅰ (55) and a connecting screw rod Ⅱ (56). Or, it also includes a second accessory device, and the second accessory device is arranged on the section rod Ⅱ (57). The second accessory device is set to include a plug shaft Ⅱ (58), a pressing plate Ⅱ (59) and a connecting screw rod Ⅲ (501).

5. The pull rod device for an insulated bucket arm vehicle according to claim 4, characterized in that: A bushing (50) is arranged on the plug shaft Ⅰ (53). The section rod Ⅰ (52) and the pressing plate Ⅰ (54) are respectively arranged on the bushing (50), and a connecting screw rod Ⅰ (55) is arranged between the bushing (50) and the pressing plate Ⅰ (54). A connecting screw rod Ⅱ (56) is arranged on the pressing plate Ⅰ (54) and the section rod Ⅰ (52). The section rod Ⅱ (57) and the pressing plate Ⅱ (59) are respectively arranged on the plug shaft Ⅱ (58). A connecting screw rod Ⅲ (501) is arranged on the pressing plate Ⅱ (59) and the section rod Ⅱ (57), and an intermediate pipe (51) is arranged between the section rod Ⅰ (52) and the section rod Ⅱ (57).

6. The pull rod device for an insulated boom truck according to claim 5, characterized in that: The intermediate pipe (51) is set as a cylinder, and one port part of the intermediate pipe (51) is set to be connected to the section rod Ⅰ (52) through a pin shaft, and the other port part of the intermediate pipe (51) is set to be connected to the section rod Ⅱ (57) through a pin shaft.

7. The pull rod device for an insulated boom truck according to claim 5, characterized in that: The section rod Ⅰ (52) is set as a beam body with a U-shaped bayonet body, a central hole body and an arc-shaped strip hole body centered on the central hole body at the outer end. The U-shaped bayonet body of the section rod Ⅰ (52) is set to be connected to the intermediate connecting seat, the central hole body of the section rod Ⅰ (52) is set to be connected to the bushing (50), the arc-shaped strip hole body of the section rod Ⅰ (52) is set to be connected to the connecting screw rod Ⅱ (56), the outer end face of the outer end of the section rod Ⅰ (52) is set to be in contact connection with the pressing plate Ⅰ (54), and the inner end of the section rod Ⅰ (52) is set to be connected to the intermediate pipe (51) through connecting bolts and nuts.

8. The pull rod device for an insulated boom truck according to claim 5, characterized in that: The second joint rod (57) is arranged such that its outer end has a U-shaped bayonet body, a central hole body, and a beam-shaped body with an arc-shaped slot body centered on the central hole body. The U-shaped bayonet body of the second joint rod (57) is arranged to be connected to the ear seat on the telescopic arm. The central hole body of the second joint rod (57) is arranged to be connected to the second insertion shaft (58), and the arc-shaped slot body of the second joint rod (57) is arranged to be connected to the third connecting screw (501). The outer end face of the outer end of the second joint rod (57) is arranged to be in contact connection with the second pressing plate (59), and the inner end of the second joint rod (57) is arranged to be connected to the intermediate pipe (51) through connecting bolts and nuts.

9. The pull rod device for an insulated boom truck according to claim 5, characterized in that: The first insertion shaft (53) is arranged as a stepped rod-shaped body with an intermediate expansion part. The intermediate part of the first insertion shaft (53) is arranged to be in through connection with the intermediate connecting seat, and the end of the first insertion shaft (53) is arranged to be in through connection with the shaft sleeve (50). Or, the shaft sleeve (50) is arranged as a T-shaped cylindrical body with an eccentric transverse pipe body and a vertical disk body having an open slot body. The open slot body of the shaft sleeve (50) is arranged to be connected to the first connecting screw (55). The transverse pipe bodies of the shaft sleeve (50) are respectively arranged to be in through connection with the first joint rod (52) and the first pressing plate (54). The inner end face of the vertical disk body of the shaft sleeve (50) is arranged to be connected to the first pressing plate (54), and the outer end face of the vertical disk body of the shaft sleeve (50) is arranged to be in contact connection with the first connecting screw (55). Or, the first pressing plate (54) is arranged as a sheet body with a central through hole body and peripheral threaded hole bodies. The central through hole body of the first pressing plate (54) is arranged to be connected to the shaft sleeve (50), and the peripheral threaded hole bodies of the first pressing plate (54) are respectively arranged to be connected to the first connecting screw (55) and the second connecting screw (56). The inner end face of the first pressing plate (54) is arranged to be in contact with the outer end of the first joint rod (52), and the outer end face of the first pressing plate (54) is arranged to be in contact connection with the shaft sleeve (50). Or, the first connecting screw (55) is arranged as a hexagonal bolt and is arranged to be in through connection with the shaft sleeve (50). The inner end of the first connecting screw (55) is arranged to be in threaded connection with the first pressing plate (54), and the flange body of the first connecting screw (55) is arranged to be in contact connection with the shaft sleeve (50). Or, the second connecting screw (56) is arranged as a hexagonal bolt, and the inner ends of the second connecting screw (56) are respectively arranged to be in threaded connection with the first pressing plate (54) and the intermediate connecting seat. The inner end of the second connecting screw (56) is arranged to be in through connection with the first joint rod (52), and the flange body of the second connecting screw (56) is arranged to be in contact connection with the first pressing plate (54). Or, the second insertion shaft (58) is arranged as a stepped rod-shaped body with an intermediate expansion part. The intermediate part of the second insertion shaft (58) is respectively arranged to be in through connection with the outer end of the second joint rod (57) and the ear seat on the telescopic arm, and the end of the second insertion shaft (58) is arranged to be in through connection with the second pressing plate (59). Or, the pressing plate II (59) is configured as a sheet having a central through hole and a peripheral through hole, and the central through hole of the pressing plate II (59) is configured to be connected to the plug shaft II (58), the peripheral through hole of the pressing plate II (59) is configured to be connected to the connecting screw III (501), the inner end surface of the pressing plate II (59) is configured to be connected in contact with the outer end of the segment rod II (57), and the outer end surface of the pressing plate II (59) is configured to be connected in contact with the connecting screw III (501), Alternatively, the connecting screw rod III (501) is configured as a hexagonal bolt and the end of the connecting screw rod III (501) is configured to be through-connected with the outer ends of the pressure plate II (59) and the section rod II (57), the inner end of the connecting screw rod III (501) is configured to be threadedly connected with the ear seat located on the telescopic arm, and the flange body of the connecting screw rod III (501) is configured to be contact-connected with the pressure plate II (59).

10. The pull rod device for an insulated boom truck according to any one of claims 1 to 9, characterized in that: The intermediate tube (51) and the segment rod I (52) and the segment rod II (57) are arranged to be distributed in the manner of three segments, and the intermediate tube (51), the segment rod I (52) and the segment rod II (57) and the plug shaft I (53), the pressure plate I (54), the sleeve (50), the connecting screw I (55) and the connecting screw II (56) are arranged to be distributed in the manner of an eccentric connector, and the intermediate tube (51), the segment rod I (52) and the segment rod II (57) and the plug shaft II (58), the pressure plate II (59) and the connecting screw III (501) are arranged to be distributed in the manner of a concentric connector. Alternatively, a pressure plate I (54), a sleeve (50), a connecting screw rod I (55) and two connecting screw rods II (56) are arranged to form a group of eccentric components, and the two groups of eccentric components are respectively arranged between the section rod I (52) and the insertion shaft I (53); a pressure plate II (59) and two connecting screw rods III (501) are arranged to form a group of concentric components, and the two groups of concentric components are arranged between the section rod II (57) and the insertion shaft II (58).

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