Hydraulic claw type jack with position-adjustable lifting claw

Abstract

The utility model relates to the technical field of jacks, in particular to a hydraulic claw type jack with a position-adjustable lifting claw, which comprises a base, a jack oil cylinder is fixedly arranged on the base, a piston rod is arranged in the jack oil cylinder in a sliding manner, an outer sleeve is connected onto the piston rod through a bolt, and a limiting component is arranged on the outer sleeve. A plurality of mounting positions are arranged in the limiting assembly; and the lifting claw can be matched with any mounting position in the limiting assembly for mounting. And the position of the lifting claw on the outer sleeve can be adjusted, so that the height requirements of more lifting equipment are met.

Description

Technical Field

[0001] The utility model relates to the technical field of jacks, in particular to a hydraulic claw type jack with adjustable lifting claws. Background Art

[0002] At present, in the actual use of jacks, manual hydraulic claw jacks and electric hydraulic claw jacks are the most common on the market, but these two jacks have the following problems in actual use.

[0003] In the actual use of the jack, the height of the piston rod can be adjusted according to the different product handling heights, but there are still problems such as a small adjustment range and lack of flexibility. The present application aims to propose a hydraulic claw jack with adjustable lifting claw position, so that the lifting height can be adjusted in a larger range and the use is more convenient and applicable. Utility Model Content

[0004] The utility model provides a hydraulic claw type jack with adjustable lifting claws, which can adjust the position of the lifting claws on the outer casing to meet the height requirements of more lifting equipment.

[0005] The technical solution to the above technical problem is: a hydraulic claw jack with adjustable lifting claws, comprising a base, a jack cylinder is fixedly arranged on the base, a piston rod is slidably arranged in the jack cylinder, a jacket is connected to the piston rod by bolts, a limit assembly is arranged on the jacket, and a plurality of installation positions are included in the limit assembly;

[0006] A lifting claw, wherein the lifting claw can be installed in cooperation with any installation position in the limiting assembly.

[0007] Preferably, the limiting assembly includes three positioning plates fixed on the outer sleeve, the three positioning plates are evenly spaced along the height direction of the outer sleeve, and two sides of the positioning plates are not fixed to the outer sleeve.

[0008] Preferably, the lifting claw comprises a first lifting claw, and the first lifting claw comprises a first Z-shaped claw, and clamping strips with transverse protrusions are welded and fixed on both sides of the first Z-shaped claw.

[0009] Preferably, the limiting assembly includes three limiting plates fixed on the outer sleeve, the three limiting plates are evenly spaced along the height direction of the outer sleeve, and a deep pit is formed between every two adjacent limiting plates.

[0010] Preferably, two sides of the three limiting plates are connected to a first U-shaped member, and a through groove is formed in the first U-shaped member corresponding to each deep pit position.

[0011] Preferably, both sides of each of the limiting plates are connected to the second U-shaped members.

[0012] Preferably, the lifting claw comprises a second lifting claw, the second lifting claw comprises a second Z-shaped claw, a longitudinal convex edge protruding downward is provided on the lower side of the upper end of the second Z-shaped claw, and reinforcing ribs are provided on both sides of the second Z-shaped claw.

[0013] Preferably, handles are provided on the sides of the jacket.

[0014] The beneficial effects of the utility model are:

[0015] 1. The installation structure of the lifting claw and the outer cover is simple and firm, and the position of the lifting claw can be easily adjusted to meet the transportation requirements of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the first embodiment.

[0017] Figure 2 It is a top view of the first embodiment.

[0018] Figure 3 This is a front view of the outer sleeve and lifting claw structure of Example 1.

[0019] Figure 4 for Figure 3 Top view of the structure shown.

[0020] Figure 5 This is a front view of the jacket structure of Example 1.

[0021] Figure 6 for Figure 5 Top view of the structure shown.

[0022] Figure 7 This is the front view of the first lifting claw.

[0023] Figure 8 This is a top view of the first lifting claw.

[0024] Fig. 9 Schematic diagram of different installation positions of the lifting claw in Example 1.

[0025] Fig.10 This is the front view of the second embodiment.

[0026] Fig.11 This is a top view of the second embodiment.

[0027] Fig.12 The front view of the structure of the second jacket and the lifting claw is shown.

[0028] Fig.13 for Fig.12 Top view of the structure shown.

[0029] Fig.14 This is the main view of the second coat structure.

[0030] Fig.15 for Fig.14 Top view of the structure shown.

[0031] Fig.16 This is the front view of the second lifting claw.

[0032] Fig.17 It is a top view of the second lifting claw.

[0033] Fig.18 It is a cross-sectional view of the first U-shaped member.

[0034] Fig.19 This is a schematic diagram of different installation positions of the lifting claw in Example 2.

[0035] Fig. 20 It is a schematic diagram of the cooperation between the third outer sleeve and the second U-shaped piece.

[0036] Fig.21 for Fig. 20 Top view of the structure shown.

[0037] Fig. 22 This is a schematic diagram of the cooperation between the second lifting claw, the outer sleeve and the second U-shaped member in Example 3.

[0038] The markings in the figure are as follows: base 1, jack cylinder 2, piston rod 3, sleeve 4, handle 5, positioning plate 6, first lifting claw 7, first U-shaped part 8, second lifting claw 9, first Z-shaped claw 701, clamping strip 702, through groove 801, second Z-shaped claw 901, and reinforcing rib 902. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0040] Embodiment 1

[0041] Combined with Figure 1-9 A hydraulic claw jack with adjustable lifting claws comprises a base 1, a jack cylinder 2 is fixedly arranged on the base 1, a piston rod 3 is slidably arranged in the jack cylinder 2, a sleeve 4 is connected to the piston rod 3 by bolts, a limit assembly is arranged on the sleeve 4, and a plurality of installation positions are included in the limit assembly; the jack cylinder 2 and the piston rod 3 can be the corresponding parts of ordinary commercial vertical jacks.

[0042] The lifting claw can be installed in cooperation with any installation position in the limiting assembly.

[0043] Furthermore, the limiting assembly includes three positioning plates 6 fixed on the outer sleeve 4 . The three positioning plates 6 are evenly spaced along the height direction of the outer sleeve 4 , and two sides of the positioning plates 6 are not fixed to the outer sleeve 4 .

[0044] Furthermore, the lifting claw includes a first lifting claw 7 , and the first lifting claw 7 includes a first Z-shaped claw 701 , and clamping strips 702 with transverse protrusions are welded and fixed on both sides of the first Z-shaped claw 701 .

[0045] Furthermore, a handle 5 is provided on the side of the jacket 4 .

[0046] During specific use, there is space on both sides of each positioning plate 6 for the clamping strip 702 to slide and engage. According to the required height position of the lifting claw, one of the positioning plates 6 is selected, and the lifting claw is pushed toward the top of the positioning plate 6 until the gap between the clamping strip 702 and the first Z-shaped claw 701 is aligned with the positioning plate 6. The lifting claw is pushed downward so that the lifting claw and the positioning plate 6 are clamped. At this time, the clamping strip 702 clamps the positioning plate 6, and the upper end of the first Z-shaped claw 701 rests against the upper end of the positioning plate 6, forming a stable connection between the outer sleeve 4 and the lifting claw, and then the lifting operation can be performed.

[0047] Embodiment 2:

[0048] Combined with Figure 9-19 A hydraulic claw jack with adjustable lifting claws comprises a base 1, a jack cylinder 2 is fixedly arranged on the base 1, a piston rod 3 is slidably arranged in the jack cylinder 2, a jacket 4 is connected to the piston rod 3 by bolts, a limit assembly is arranged on the jacket 4, and a plurality of installation positions are included in the limit assembly;

[0049] The lifting claw can be installed in cooperation with any installation position in the limiting assembly.

[0050] Furthermore, the limiting assembly includes three limiting plates 10 fixed on the outer sleeve 4 . The three limiting plates 10 are evenly spaced along the height direction of the outer sleeve 4 , and a deep pit is formed between every two adjacent limiting plates 10 .

[0051] Furthermore, two sides of the three limiting plates 10 are connected to the first U-shaped member 8 , and a through groove 801 is formed in the first U-shaped member 8 corresponding to each deep pit position.

[0052] Furthermore, the lifting claw includes a second lifting claw 9 , which includes a second Z-shaped claw 901 . A longitudinal convex edge protruding downward is provided on the lower side of the upper end of the second Z-shaped claw 901 , and reinforcing ribs 902 are provided on both sides of the second Z-shaped claw 901 .

[0053] When this embodiment is used, there is a gap between the first U-shaped member 8 and the outer sleeve 4 for the longitudinal convex edge to be inserted. At the position of the lifting claw to be installed, first align the second Z-shaped claw 901 with the upper side of the through slot 801 (if the uppermost limit plate 10 is docked and installed, it can be directly aligned with the gap between the first U-shaped member 8 and the outer sleeve 4), insert the lifting claw into the through slot 801, and then press the lifting claw downward, and the longitudinal convex edge is inserted downward into the gap between the first U-shaped member 8 and the outer sleeve 4. At this time, the two sides of the second Z-shaped claw 901 are limited by the two side walls of the first U-shaped member 8, and the other two sides are limited by the outer sleeve 4 and the wall surface of the first U-shaped member 8, and the bottom is against the upper end of the limit plate 10. After the connection is completed, the lifting operation can be performed.

[0054] Embodiment three:

[0055] Combined with Figure 20-22 On the basis of the second embodiment, both sides of each limiting plate 10 are not connected to the first U-shaped member 8 but are connected to the second U-shaped member 11 instead.

[0056] Compared with the first U-shaped member 11, the second U-shaped member 11 is fixed to each limiting plate 10 separately. A gap is also left between the second U-shaped member 10 and the outer sleeve 4 for the longitudinal flange to be inserted. Compared with the second embodiment, the installation is more convenient and can be selected when dealing with some lighter goods.

[0057] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the appended claims and their equivalents.

Claims

1. A hydraulic claw jack with adjustable lifting claws, comprising a base (1), a jack cylinder (2) fixedly arranged on the base (1), a piston rod (3) slidably arranged in the jack cylinder (2), a sleeve (4) connected to the piston rod (3) by bolts, characterized in that: The outer sleeve (4) is provided with a limit assembly, and the limit assembly includes a plurality of installation positions; A lifting claw, wherein the lifting claw can be installed in cooperation with any installation position in the limiting assembly.

2. A hydraulic claw jack with adjustable lifting claw according to claim 1, characterized in that: The limiting assembly comprises three positioning plates (6) fixed on the outer sleeve (4); the three positioning plates (6) are evenly spaced along the height direction of the outer sleeve (4); and two sides of the positioning plates (6) are not fixed to the outer sleeve (4).

3. A hydraulic claw jack with adjustable lifting claws according to claim 2, characterized in that: The lifting claw comprises a first lifting claw (7), the first lifting claw (7) comprises a first Z-shaped claw (701), and clamping strips (702) with transverse protrusions are welded and fixed on both sides of the first Z-shaped claw (701).

4. A hydraulic claw jack with adjustable lifting claws according to claim 1, characterized in that: The limiting assembly comprises three limiting plates (10) fixedly mounted on the outer sleeve (4); the three limiting plates (10) are evenly spaced along the height direction of the outer sleeve (4); and a deep pit is formed between every two adjacent limiting plates (10).

5. A hydraulic claw jack with adjustable lifting claws according to claim 4, characterized in that: The two sides of the three limiting plates (10) are connected to the first U-shaped member (8), and the first U-shaped member (8) is provided with a through groove (801) corresponding to each deep pit position.

6. A hydraulic claw jack with adjustable lifting claws according to claim 4, characterized in that: Both sides of each of the limiting plates (10) are connected to the second U-shaped members (11).

7. A hydraulic claw jack with adjustable lifting claws according to any one of claims 5 or 6, characterized in that: The lifting claw comprises a second lifting claw (9), the second lifting claw (9) comprises a second Z-shaped claw (901), a longitudinal convex edge protruding downward is provided on the lower side of the upper end of the second Z-shaped claw (901), and reinforcing ribs (902) are provided on both sides of the second Z-shaped claw (901).

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