High-stability jack

Abstract

The utility model provides a high-stability jack which comprises a machine base, a jacking rod capable of vertically moving up and down is arranged on the machine base, a driving handle capable of driving the jacking rod to move upwards is arranged on the machine base, and the high-stability jack is characterized in that supporting blocks are symmetrically arranged on the two sides of the machine base and connected with a ratchet guide rod, and the ratchet guide rod is connected with the machine base. The ratchet guide rod is further connected with the machine base in a sliding mode, the ratchet guide rod is horizontally arranged, the machine base is connected with a pawl through a first installation shaft, the pawl is matched with the ratchet guide rod, and a first reset torsion spring is arranged between the first installation shaft and the machine base.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a high-stability jack. Background Art

[0002] A jack is a light and small lifting device that uses a rigid lifting piece as a working device to lift heavy objects through a small stroke of the top support or bottom claws. Jacks are mainly used in factories, mines, transportation and other departments for vehicle repairs and other lifting and supporting work. Its structure is light and strong, flexible and reliable, and can be carried and operated by one person.

[0003] After searching, it is found that a top-swing jack is disclosed in Chinese patent literature [Application No.: 201620698599.5; Publication No.: CN205687459U]. This jack uses a single flat bottom plate, and its supporting surface cannot be changed as needed. Therefore, it is necessary to design a high-stability jack. Summary of the invention

[0004] The utility model aims to solve the above problems in the prior art and proposes a high-stability jack.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a high-stability jack, including a machine base, a lifting rod that can move vertically up and down on the machine base, and a driving handle that can drive the lifting rod to move upward on the machine base, characterized in that support blocks are symmetrically arranged on both sides of the machine base, the support blocks are connected to the ratchet guide rod, the ratchet guide rod is also slidably connected to the machine base, and the ratchet guide rod is horizontally arranged, a pawl is connected to the machine base through an installation shaft, and the pawl cooperates with the ratchet guide rod, and a reset torsion spring is provided between the installation shaft and the machine base.

[0006] The middle part of the ratchet is connected to one end of the steel wire rope, the middle part of the steel wire rope penetrates into the guide hole of the machine base, and the other end of the steel wire rope is connected to the unlocking block.

[0007] The driving handle includes a rod section 1 and a rod section 2, and the rod section 1 and the rod section 2 are slidably connected. A connecting sleeve is installed on the rod section 2, and a swing block is connected to the connecting sleeve through a mounting shaft 2. A reset torsion spring 2 is provided between the mounting shaft 2 and the connecting sleeve, a locking rod is provided on the swing block, and the rod section 1 has a plurality of locking holes that match the locking rod.

[0008] The rod section 2 is also provided with a gripping anti-slip sleeve.

[0009] An anti-sliding block is also fixed to the upper end of the jacking rod.

[0010] Compared with the prior art, the high stability jack has the following advantages:

[0011] In the utility model, support blocks are arranged on both sides of the machine base, and the support blocks can be pulled out to a desired distance at will and the support blocks will not fall back unexpectedly, thereby greatly improving the stability of the machine base when it is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the planar structure of the utility model with the removed part;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the utility model with parts removed;

[0015] In the figure, 1, machine base; 2, support block; 3, lifting rod; 4, anti-sliding block; 5, driving handle; 5a, rod section one; 5a1, locking hole; 5b, rod section two; 5c, connecting sleeve; 5d, mounting shaft two; 5e, swing block; 5e1, locking rod; 5f, gripping anti-slip sleeve; 6, ratchet guide rod; 7, pawl; 8, wire rope; 9, mounting shaft one; 10, unlocking block. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 1-Figure 3 As shown, the high stability jack includes a machine base 1, a lifting rod 3 which can move vertically up and down is provided on the machine base 1, a driving handle 5 which can drive the lifting rod 3 to move upward is provided on the machine base 1, the installation method of the lifting rod 3 and the driving handle 5 is the existing technology, and the driving handle 5 makes the lifting rod 3 move upward which also adopts the existing technology; support blocks 2 are symmetrically arranged on both sides of the machine base 1, the support blocks 2 are connected to the ratchet guide rod 6, the ratchet guide rod 6 is also slidably connected to the machine base 1, and the ratchet guide rod 6 is horizontally arranged, a pawl 7 is connected to the machine base 1 through an installation shaft 9, and the pawl 7 cooperates with the ratchet guide rod 6, a reset torsion spring 1 is provided between the installation shaft 9 and the machine base 1, and in this embodiment, the pawl 7 and the installation shaft 9 are fixedly connected.

[0018] The middle part of the pawl 7 is connected to one end of the steel wire rope 8 , the middle part of the steel wire rope 8 passes through the guide hole of the machine base 1 , and the other end of the steel wire rope 8 is connected to the unlocking block 10 .

[0019] The driving handle 5 includes a rod section 1 5a and a rod section 2 5b, which are slidably connected with each other. A connecting sleeve 5c is installed on the rod section 2 5b, and a swing block 5e is connected to the connecting sleeve 5c through a mounting shaft 2 5d. A reset torsion spring 2 is provided between the mounting shaft 2 5d and the connecting sleeve 5c. In the present embodiment, the swing block 5e and the mounting shaft are fixedly connected. A locking rod 5e1 is provided on the swing block 5e, and a plurality of locking holes 5a1 matching with the locking rod 5e1 are provided on the rod section 1 5a. With this structure, the driving handle 5 can be shortened when it is not needed, and when it is needed, the locking rod 5e1 can be inserted into the required locking hole 5a1, so that the rod section 1 5a and the rod section 2 5b can be locked to reach the required length.

[0020] The rod section 2 5b is also provided with a gripping anti-slip sleeve 5f. During operation, the user can hold the gripping anti-slip sleeve 5f.

[0021] An anti-sliding block 4 is also fixed to the upper end of the jacking rod 3 .

[0022] In the utility model, support blocks 2 are arranged on both sides of the machine base 1, and the support blocks 2 can be pulled out to any distance and the support blocks 2 will not fall back accidentally, so that the stability of the machine base 1 can be greatly improved when it is used.

[0023] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0024] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A high stability jack, comprising a machine base (1), the machine base (1) having a jacking rod (3) capable of vertically moving up and down, the machine base (1) being provided with a driving handle (5) capable of driving the jacking rod (3) to move upward, characterized in that: Support blocks (2) are symmetrically arranged on both sides of the machine base (1), the support blocks (2) are connected to a ratchet guide rod (6), the ratchet guide rod (6) is also slidably connected to the machine base (1), and the ratchet guide rod (6) is arranged horizontally. A ratchet pawl (7) is connected to the machine base (1) via a mounting shaft (9), and the ratchet pawl (7) cooperates with the ratchet guide rod (6), and a return torsion spring (1) is provided between the mounting shaft (9) and the machine base (1).

2. A high stability jack according to claim 1, characterized in that: The middle part of the ratchet (7) is connected to one end of the steel wire rope (8), the middle part of the steel wire rope (8) penetrates into the guide hole of the machine base (1), and the other end of the steel wire rope (8) is connected to the unlocking block (10).

3. A high stability jack according to claim 1, characterized in that: The driving handle (5) comprises a rod section 1 (5a) and a rod section 2 (5b), wherein the rod section 1 (5a) and the rod section 2 (5b) are slidably connected to each other, a connecting sleeve (5c) is installed on the rod section 2 (5b), a swing block (5e) is connected to the connecting sleeve (5c) via a second mounting shaft (5d), a second reset torsion spring is provided between the second mounting shaft (5d) and the connecting sleeve (5c), a locking rod (5e1) is provided on the swing block (5e), ​​and a plurality of locking holes (5a1) matching the locking rod (5e1) are provided on the rod section 1 (5a).

4. A high stability jack according to claim 3, characterized in that: The rod section 2 (5b) is also provided with a gripping anti-slip sleeve (5f).

5. A high stability jack according to claim 1, characterized in that: An anti-sliding block (4) is also fixed to the upper end of the lifting rod (3).

Images