Hydraulic lifting steering device

Abstract

The utility model discloses a hydraulic lifting steering device which comprises a base, a jack, a supporting wheel set and a handle, the supporting wheel set is installed at the bottom of the base, the jack is installed at the top of the base, the handle is connected with the base, and positioning rods are installed on one side or two sides, located on the jack, of the top of the base. The handle is used for holding the traction steering device by hand, and the maintenance equipment is steered by swinging the handle. The jack is used for jacking one end of the overhaul equipment, when moving and steering are needed, the jack is used for jacking one end of the overhaul equipment, the positioning rod is used for positioning the base and the overhaul equipment, and the steering device is prevented from being separated from the overhaul equipment when the overhaul equipment is dragged. The auxiliary steering device is simple in structure and capable of flexibly and conveniently conducting auxiliary steering on maintenance equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of operation tool, especially relates to a hydraulic lifting steering device. BACKGROUND

[0002] At present, many mobile transformer maintenance equipment 100 such as shown in the figure, two groups of wheels are installed at the bottom of the box, in the maintenance operation process, if it is necessary to move the maintenance equipment 100, manual pushing is carried out. Figure 7 However, since the maintenance equipment 100 is not configured with a steering device, it is extremely inconvenient when the maintenance equipment 100 needs to be steered. Therefore, the hydraulic lifting steering device of the application is designed.

[0003] In the prior art, for example, a hydraulic jack disclosed in Chinese patent document CN206375618U is mainly used for automobile maintenance, which is not only limited in lifting height, but also has a large size and is not flexible to use. CONTENT

[0004] The utility model aims at providing a hydraulic lifting steering device, which can flexibly and conveniently assist the steering of the maintenance equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides a hydraulic lifting steering device, which comprises a base, a jack, a support wheel group and a handle, the bottom of the base is provided with the support wheel group, the top of the base is provided with the jack, the handle is connected with the base, and the top of the base is provided with a positioning rod on one side or both sides of the jack.

[0006] The support wheel group comprises a support shaft and a wheel, and the wheel is rotatably installed at both ends of the support shaft; a support seat is installed on the support shaft between the wheels on both sides, and the support seat is connected to the bottom of the base.

[0007] The top of the piston rod of the jack is fixedly provided with a top plate.

[0008] The bottom side of the top plate is provided with a sleeve, and the top plate is installed on the top of the piston rod through the sleeve.

[0009] The top plate is provided with a mounting hole.

[0010] The base is provided with a insertion hole, one end of the positioning rod is provided with an insertion part, and the insertion part is movably inserted into the insertion hole.

[0011] The base is provided with a first pin hole penetrating the insertion hole, the insertion part is provided with a second pin hole at a position corresponding to the first pin hole, and a pin is detachably inserted into the first pin hole and the second pin hole.

[0012] The base is provided with an extension part on one side, and a support is arranged on the upper side of the extension part.

[0013] The extension part is provided with a manual oil pump on the side away from the jack, and a pressing part is arranged on the lower side of the handle at a position corresponding to the manual oil pump; the oil inlet of the manual oil pump is communicated with an oil tank through an oil suction pipeline, the oil outlet of the manual oil pump is communicated with the oil inlet of the jack through an oil supply pipeline, and the oil outlet of the jack is communicated with the oil tank through an oil discharge pipeline; a first one-way valve is arranged on the oil suction pipeline, a second one-way valve is arranged on the oil supply pipeline, and an oil discharge valve is arranged on the oil discharge pipeline.

[0014] Compared with the prior art, the handle has the following technical effects:

[0015] The handle is used for hand-held traction steering device, and the steering device is turned by swinging the handle, so that the maintenance equipment is turned. The jack is used for jacking up one end of the maintenance equipment, and when it is necessary to move and turn, the jack is used for jacking up one end of the maintenance equipment, the positioning rod is used for positioning the base and the maintenance equipment, and the steering device is prevented from being separated from the maintenance equipment when the maintenance equipment is pulled. The present application has the advantages of simple structure, small size, and flexible and convenient auxiliary steering of the maintenance equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0018] Figure 2 It is another three-dimensional structure schematic view of the utility model.

[0019] Figure 3 It is a connection structure schematic view of the base, the jack and the support wheel group of the utility model.

[0020] Figure 4 It is a three-dimensional structure schematic view of the utility model.

[0021] Figure 5 It is a three-dimensional structure schematic view of the utility model.

[0022] Figure 6 It is a principle schematic view of the jack pressure supply system of the utility model.

[0023] Figure 7 It is a use state schematic view of the utility model.

[0024] REFERENCE SIGNS:

[0025] Base 10, jack 11, first pin hole 12, extension 13, support 14;

[0026] 20, piston rod 201, hand oil pump 21, oil tank 22, oil suction line 23, first one-way valve 231, oil supply line 24, second one-way valve 241, oil discharge line 25, oil discharge valve 251.

[0027] Support wheel group 30, support shaft 31, wheel 32, support seat 33;

[0028] Top plate 40, sleeve 41, mounting hole 42;

[0029] Handle 50, pressing part 51;

[0030] Positioning rod 60, insertion part 61, second pin hole 62;

[0031] Pin 70;

[0032] Maintenance equipment 100, extension frame 101. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in detail below, examples of which are shown in the accompanying drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0034] Example 1:

[0035] Referring to Figure 1 、 2 A hydraulic lifting steering device, comprising a base 10, a jack 20, a support wheel group 30 and a handle 50, the bottom of the base 10 is provided with the support wheel group 30, the top of the base 10 is provided with the jack 20, the handle 50 is connected with the base 10, and the top of the base 10 is provided with a positioning rod 60 on both sides of the jack 20.

[0036] The handle 50 is used for hand-held traction steering device, and the steering device is turned by swinging the handle 50, so as to steer the maintenance equipment 100. The jack 20 is used for jacking one end of the maintenance equipment 100, and when it is necessary to move the steering, the one end of the maintenance equipment 100 is jacked up by the jack 20, and the positioning rod 60 is used for positioning the base 10 and the maintenance equipment 100, preventing the steering device from being separated from the maintenance equipment 100 when the maintenance equipment 100 is pulled. The present application has simple structure, and can flexibly and conveniently assist the steering of the maintenance equipment.

[0037] In use, referring to Figure 7One end of the maintenance equipment 100 is provided with an extension frame 101, which has a through hole. The positioning rod 60 passes through the through hole in the extension frame 101 and is then connected and fixed to the base 10. The jack 20 is supported on the underside of the extension frame 101.

[0038] In this embodiment, the jack 20 can be a common hydraulic jack.

[0039] See Figure 3 The support wheel assembly 30 includes a support shaft 31 and wheels 32. The wheels 32 are rotatably mounted on both ends of the support shaft 31. A support seat 33 is installed on the support shaft 31 between the two wheels 32, and the support seat 33 is connected to the bottom of the base 10.

[0040] Specifically, wheels 32 are mounted on both ends of the support shaft 31 via bearings, and the wheels 32 are located on the lower side of the base 10. The support base 33 can be integral with the base 10 or mounted on the lower side of the base 10. When the handle 50 is swung, the wheels 32 swing accordingly.

[0041] See Figure 1 , 2 A top plate 40 is fixedly installed on the top of the piston rod 201 of the jack 20, which increases the contact area between the piston rod 201 of the jack 20 and the extension frame 101, thereby improving stability.

[0042] Further, see Figure 4 In order to facilitate the installation of the top plate 40 on the piston rod 201, a sleeve 41 is provided on the lower side of the top plate 40, and the top plate 40 is installed on the top of the piston rod 201 through the sleeve 41.

[0043] In practice, the sleeve 41 can be fixedly fitted onto the top of the piston rod 201, or it can be threaded onto the top of the piston rod 201.

[0044] Furthermore, in order to facilitate the connection and fixation between the top plate 40 and the extension frame 101, the top plate 40 is provided with mounting holes 42.

[0045] When in use, after the bolt is inserted into the mounting hole 42, it is screwed and fixed to the extension bracket 101.

[0046] Example 2:

[0047] Based on Example 1, see Figure 3 , 5 The base 10 is provided with a socket 11, and one end of the positioning rod 60 is provided with an insertion part 61, which is movably inserted into the socket 11. This structure facilitates the connection between the positioning rod 60 and the base 10. Specifically, the diameter of the insertion part 61 is smaller than the diameter of the positioning rod 60.

[0048] Further, in order to prevent the positioning rod 60 from falling off, see Figure 3 , 5 , the base 10 is provided with a first pin hole 12 penetrating the insertion hole 11, and the insertion part 61 is provided with a second pin hole 62 at a position corresponding to the first pin hole 12, and the pin 70 is detachably inserted into the first pin hole 12 and the second pin hole 62.

[0049] Embodiment 3:

[0050] On the basis of Embodiment 1 or Embodiment 2, see Figures 1 to 3 , the base 10 is provided with an extension part 13 on one side, and the extension part 13 is provided with a support 14 on the upper side, and the handle 50 is hinged to the support 14. It is convenient to flexibly adjust the angle of the handle 50 according to the height of the person and the direction of force.

[0051] Embodiment 4:

[0052] On the basis of Embodiment 3, see Figure 2 , 3 , 6, the extension part 13 is provided with a manual oil pump 21 away from the jack 20 on one side, and the handle 50 is provided with a pressing part 51 on the lower side at a position corresponding to the manual oil pump 21; the oil inlet of the manual oil pump 21 is communicated with the oil tank 22 through the oil suction pipeline 23, the oil outlet of the manual oil pump 21 is communicated with the oil inlet of the jack 20 through the oil supply pipeline 24, and the oil outlet of the jack 20 is communicated with the oil tank 22 through the oil discharge pipeline 25; the first one-way valve 231 is installed on the oil suction pipeline 23, the second one-way valve 241 is installed on the oil supply pipeline 24, and the oil discharge valve 251 is installed on the oil discharge pipeline 25. By swinging the handle 50 up and down, the pressing part 51 extrudes the piston rod of the manual oil pump 21, thereby pumping oil to the jack 20, so that the piston rod of the jack 20 is extended. See Figure 6 ,

[0053] Specifically, see Figure 6 , when the handle 50 is swung upward, the piston rod of the manual oil pump 21 moves upward under the elastic force of its own spring, at which time the oil in the oil tank 22 is sucked into the cavity of the manual oil pump 21 from the oil suction pipeline 23, and in this process, the first one-way valve 231 is in the open state, and the second one-way valve 241 is in the closed state. Then press down the handle 50, the oil in the manual oil pump 21 enters the lower cavity of the jack 20 from the oil supply pipeline 24, and the piston rod of the jack 20 is extended, and in this process, the first one-way valve 231 is in the closed state, and the second one-way valve 241 is in the open state. When it is needed to retract the piston rod of the jack 20, open the oil discharge valve 251, and the oil in the lower cavity of the jack 20 returns to the oil tank 22 from the oil discharge pipeline 25.

[0054] In this embodiment, the oil tank 22 can be at the bottom of the base 10, or in the interior of the base 10.

[0055] The use method or principle of the utility model:

[0056] Referring to Figure 7 , one end of the maintenance equipment 100 is provided with an extension frame 101, and the extension frame 101 is provided with a through hole. When the steering device of the present application is needed to steer the maintenance equipment 100, first, the jack 20 is partially placed below the extension frame 101, then the positioning rod 60 is inserted into the through hole on the extension frame 101 from top to bottom, then the insertion part 61 is inserted into the insertion hole 11, the pin 70 is inserted into the first pin hole 12 and the second pin hole 62, and the positioning rod 60 is connected with the base 10. By swinging the handle 50 up and down, the piston rod of the jack 20 is extended, thereby lifting one end of the maintenance equipment 100. During the movement of the maintenance equipment 100, the handle 50 is swung left and right to control the steering of the maintenance equipment 100.

Claims

1. A hydraulic lift-and-steer device characterized by: Including base (10), jack (20), support wheel group (30) and handle (50), the bottom of base (10) is installed with support wheel group (30), the top of base (10) is installed with jack (20), handle (50) is connected with base (10), the top of base (10) is installed with positioning rod (60) on one side or both sides of jack (20).

2. The hydraulic lift-and-steer device of claim 1, wherein: Support wheel group (30) includes support shaft (31) and wheel (32), both ends of support shaft (31) are rotatably installed with wheel (32) respectively;Support shaft (31) is installed with support seat (33) between both sides of wheel (32) on the top, and support seat (33) is connected on the bottom of base (10).

3. The hydraulic lift-and-steer device of claim 1, wherein: The top of piston rod (201) of jack (20) is fixedly installed with top plate (40).

4. The hydraulic lift-and-steer device of claim 3, wherein: The lower side of top plate (40) is provided with sleeve (41), and top plate (40) is installed on the top of piston rod (201) through sleeve (41).

5. Hydraulic lift turning device according to claim 3 or 4, characterized in that: The top plate (40) is provided with mounting hole (42).

6. The hydraulic lift-and-steer device of claim 1, wherein: The base (10) is provided with insertion hole (11), and one end of the positioning rod (60) is provided with insertion part (61), which is movably inserted into the insertion hole (11).

7. The hydraulic lift-and-steer device of claim 6, wherein: The base (10) is provided with first pin hole (12) penetrating the insertion hole (11), and the insertion part (61) is provided with second pin hole (62) at the position corresponding to the first pin hole (12), and the pin (70) is detachably inserted into the first pin hole (12) and the second pin hole (62).

8. The hydraulic lift-and-steer device of claim 1, wherein: One side of the base (10) is provided with an extension part (13), and the upper side of the extension part (13) is provided with a support (14), and the handle (50) is hinged with the support (14).

9. The hydraulic lift-and-steer device of claim 8, wherein: The side of the extension part (13) away from the jack (20) is provided with a manual oil pump (21), and the lower side of the handle (50) is provided with a pressing part (51) corresponding to the manual oil pump (21);The oil inlet of the manual oil pump (21) is communicated with the oil tank (22) through the oil suction pipeline (23), the oil outlet of the manual oil pump (21) is communicated with the oil inlet of the jack (20) through the oil supply pipeline (24), and the oil outlet of the jack (20) is communicated with the oil tank (22) through the oil discharge pipeline (25);The oil suction pipeline (23) is provided with a first one-way valve (231), the oil supply pipeline (24) is provided with a second one-way valve (241), and the oil discharge pipeline (25) is provided with an oil discharge valve (251).

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