Jack bearing connecting rod structure

Abstract

The utility model discloses a jack bearing connecting rod structure, which relates to the technical field of jacks, and comprises a base and an adjusting mechanism, the adjusting mechanism is installed inside the base, the adjusting mechanism comprises a connecting rod, the connecting rod is arranged inside the base, and the left end and the right end of the connecting rod are fixedly connected with threaded columns. Through cooperation of a base, an adjusting mechanism, a fixing rod, a limiting groove and a supporting block, a rotary knob is rotated to drive a rotating rod to rotate, two threaded columns are driven to rotate under cooperation of a first bevel gear, a second bevel gear and a connecting rod, so that two mounting plates are driven to be away from each other, and then through cooperation of the fixing rod and the limiting groove, the two mounting plates are fixed. When the jack is used, the two supporting blocks are driven to be far away from each other, so that the bottom supporting area is remarkably increased, the overall stability of the device is improved, and the toppling risk caused by insufficient supporting area in the using process of the jack is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of jacks, in particular to a bearing connecting rod structure of a jack. Background Technique

[0002] A vehicle jack is a lifting device specifically designed for vehicles. In the field of automobile maintenance, it is mainly used to lift the bottom of a vehicle when replacing a spare tire, so as to replace the tire or perform other bottom maintenance work. It is a common lifting tool and one of the indispensable tools in vehicle maintenance.

[0003] However, traditional jacks usually lack sufficient bottom support area and stability adjustment mechanism, resulting in limited support capacity when facing complex and changeable working environments. Specifically, when a jack is lifting a car, if the force application point is tilted or the ground is uneven, the jack is extremely likely to tip over due to unstable center of gravity, resulting in the inability to effectively complete the lifting task, and may also pose a safety hazard to the surrounding working environment and users, further increasing the risk of accidents.

[0004] Therefore, a bearing connecting rod structure of a jack is needed to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a bearing connecting rod structure of a jack.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A bearing connecting rod structure of a jack, including a base and an adjusting mechanism. The adjusting mechanism is installed inside the base. The adjusting mechanism includes a connecting rod. The connecting rod is arranged inside the base. Threaded columns are fixedly connected to both the left and right ends of the connecting rod. The two threaded columns are symmetrically distributed at the left and right ends of the connecting rod respectively. The ends of the two threaded columns away from the connecting rod are respectively rotatably connected to the inner wall of the base. A first bevel gear is fixedly connected to the surface of the connecting rod. A knob is arranged on the front of the base. A rotating rod is fixedly connected to the back of the knob. The end of the rotating rod away from the knob penetrates through the front of the base and extends into the base. A second bevel gear is fixedly connected to the end of the rotating rod away from the knob. The first bevel gear is meshed with the second bevel gear. Installation plates are threadedly connected to the surfaces of the threaded columns. There are two installation plates in total. The two installation plates are symmetrically distributed on the surfaces of the two threaded columns respectively.

[0007] Preferably, two fixing rods are fixedly connected to the sides of the two installation plates away from each other. Four limiting grooves are formed on the left and right sides of the base in total. The four limiting grooves are respectively rectangularly distributed on the left and right sides of the base. The ends of the fixing rods away from the installation plates penetrate through the inside of the limiting grooves and extend to the outside of the base.

[0008] Preferably, at one end of two adjacent fixing rods away from the mounting plate, there are fixedly connected support blocks, and the support blocks are symmetrically distributed on the left and right sides of the base respectively. On the upper surface of the base, there is a jack body, and an outer shell is sleeved on the outer surface of the jack body. The lower end of the outer shell is fixedly connected to the upper surface of the base. A connecting ring is slidably connected to the surface of the jack body. The connecting ring is arranged between the jack body and the outer shell. A spring is fixedly connected to the bottom surface of the connecting ring, and the lower end of the spring is fixedly connected to the upper surface of the base.

[0009] Preferably, bearing connecting rod mechanisms are installed on both the left and right sides of the connecting ring. Through grooves are formed on both the left and right side surfaces of the outer shell. The lower ends of the two bearing connecting rod mechanisms respectively pass through the interiors of the two through grooves and extend to the left and right sides of the outer shell, and the lower ends of the two bearing connecting rod mechanisms are respectively installed on the upper surfaces of the two support blocks.

[0010] Preferably, the bearing connecting rod mechanism includes a first U-shaped frame, and the first U-shaped frame is fixedly connected to the side surface of the connecting ring and is arranged inside the through groove. Bearings are installed on both side surfaces of the first U-shaped frame. A connecting rod is arranged inside the first U-shaped frame. A first rotating shaft penetrates through the upper end of the connecting rod, and the two ends of the first rotating shaft are respectively rotatably connected to the interiors of the two bearings.

[0011] Preferably, a second U-shaped frame is arranged at the lower end of the connecting rod, and the second U-shaped frame is fixedly connected to the upper surface of the support block. Bearings are installed on both side surfaces of the second U-shaped frame. A second rotating shaft penetrates through the lower end of the connecting rod, and the two ends of the second rotating shaft are respectively rotatably connected to the interiors of the two bearings.

[0012] Beneficial effects:

[0013] Compared with the prior art, the jack bearing connecting rod structure has the following beneficial effects:

[0014] First, through the cooperation among the base, the adjusting mechanism, the fixing rods, the limiting grooves and the support blocks, by rotating the knob to drive the rotating rod to rotate, under the cooperation of the first bevel gear, the second bevel gear and the connecting rod, the two threaded columns are driven to rotate, so as to drive the two mounting plates to move away from each other. Then, under the cooperation of the fixing rods and the limiting grooves, the two support blocks are driven to move away from each other, thus significantly increasing the bottom support area. This setting not only improves the overall stability of the device, but also effectively avoids the tipping risk of the jack caused by insufficient support area during use, ensuring the safety and reliability of the operation process.

[0015] Second, through the cooperation among the support block, the bearing connecting rod mechanism, the through groove, the connecting ring and the spring, when the support block moves away, the connecting rod arranged between the first U-shaped frame and the second U-shaped frame realizes the flexible connection between the connecting rod and the first and second U-shaped frames through the cooperation of the first rotating shaft, the first bearing, the second rotating shaft and the second bearing. Under the cooperation of the spring and the through groove, the connecting ring will be driven to descend stably, thus forming a stable support structure for the jack body, preventing the jack body from shaking during operation, and effectively improving the stability of the jack during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the connection structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the internal structure of the adjustment mechanism of the present utility model;

[0019] Figure 4 is an exploded view of the bearing connecting rod mechanism of the present utility model;

[0020] Figure 5 is Figure 3 the enlarged view at A in

[0021] In the figure: 1, base; 2, adjustment mechanism; 201, connecting rod; 202, threaded column; 203, first bevel gear; 204, knob; 205, rotating rod; 206, second bevel gear; 207, mounting plate; 3, fixed rod; 4, limiting groove; 5, support block; 6, jack body; 7, housing; 8, connecting ring; 9, spring; 10, bearing connecting rod mechanism; 101, first U-shaped frame; 102, first bearing; 103, connecting rod; 104, first rotating shaft; 105, second U-shaped frame; 106, second bearing; 107, second rotating shaft; 11, through groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0023] As Figures 1 to 5As shown in the figure, a jack bearing connecting rod structure includes a base 1 and an adjusting mechanism 2, and the adjusting mechanism 2 is installed inside the base 1. The adjusting mechanism 2 includes a connecting rod 201 which is arranged inside the base 1. Threaded columns 202 are fixedly connected to both the left and right ends of the connecting rod 201. The two threaded columns 202 are symmetrically distributed at the left and right ends of the connecting rod 201 respectively. The ends of the two threaded columns 202 away from the connecting rod 201 are respectively rotatably connected to the inner wall of the base 1. A first bevel gear 203 is fixedly connected to the surface of the connecting rod 201, and a knob 204 is arranged on the front of the base 1. A rotating rod 205 is fixedly connected to the back of the knob 204. The end of the rotating rod 205 away from the knob 204 penetrates through the front of the base 1 and extends into the base 1. A second bevel gear 206 is fixedly connected to the end of the rotating rod 205 away from the knob 204. The first bevel gear 203 is meshed with the second bevel gear 206. Mounting plates 207 are threadedly connected to the surfaces of the threaded columns 202. There are two mounting plates 207 in total, and the two mounting plates 207 are symmetrically distributed on the surfaces of the two threaded columns 202 respectively.

[0024] By rotating the knob 204, the rotating rod 205 is driven to rotate. With the cooperation of the first bevel gear 203, the second bevel gear 206 and the connecting rod 201, the two threaded columns 202 are driven to rotate. The thread directions of the two threaded columns 202 are opposite, so as to drive the two mounting plates 207 to move away from each other.

[0025] Two fixing rods 3 are fixedly connected to the sides of the two mounting plates 207 away from each other. A total of four limiting grooves 4 are formed on the left and right sides of the base 1. The four limiting grooves 4 are respectively rectangularly distributed on the left and right sides of the base 1. The ends of the fixing rods 3 away from the mounting plates 207 penetrate through the inside of the limiting grooves 4 and extend to the outside of the base 1. The ends of two adjacent fixing rods 3 away from the mounting plates 207 are fixedly connected with support blocks 5, and the support blocks 5 are symmetrically distributed on the left and right sides of the base 1 respectively.

[0026] When the mounting plate 207 moves, the fixing rod 3 is driven to move. The arrangement of the limiting groove 4 can limit the fixing rod 3 to prevent the mounting plate 207 from shifting or shaking during the movement. As the mounting plate 207 continues to move, the ends of two adjacent fixing rods 3 away from the mounting plate 207 will drive the support blocks 5 to move away together, thus significantly increasing the bottom support area.

[0027] The upper surface of the base 1 is provided with a jack body 6, and the outer surface of the jack body 6 is sleeved with a housing 7. The lower end of the housing 7 is fixedly connected to the upper surface of the base 1. A connecting ring 8 is slidably connected to the surface of the jack body 6, and the connecting ring 8 is arranged between the jack body 6 and the housing 7. A spring 9 is fixedly connected to the bottom surface of the connecting ring 8, and the lower end of the spring 9 is fixedly connected to the upper surface of the base 1. Bearing link mechanisms 10 are installed on both the left and right sides of the connecting ring 8. Through grooves 11 are formed on both the left and right side surfaces of the housing 7. The lower ends of the two bearing link mechanisms 10 respectively pass through the interiors of the two through grooves 11 and extend to both the left and right sides of the housing 7, and the lower ends of the two bearing link mechanisms 10 are respectively installed on the upper surfaces of the two support blocks 5.

[0028] When the support blocks 5 move away from each other, through the transmission of the bearing link mechanism 10, the connecting ring 8 will be driven to descend. The setting of the spring 9 can make the connecting ring 8 descend more smoothly during the process.

[0029] The bearing link mechanism 10 includes a first U-shaped frame 101. The first U-shaped frame 101 is fixedly connected to the side surface of the connecting ring 8 and is arranged inside the through groove 11. Bearings 102 are installed on both side surfaces of the first U-shaped frame 101. A connecting rod 103 is arranged inside the first U-shaped frame 101. A first rotating shaft 104 penetrates through the upper end of the connecting rod 103, and both ends of the first rotating shaft 104 are respectively rotatably connected inside the two bearings 102. The lower end of the connecting rod 103 is provided with a second U-shaped frame 105. The second U-shaped frame 105 is fixedly connected to the upper surface of the support block 5. Bearings 106 are installed on both side surfaces of the second U-shaped frame 105. A second rotating shaft 107 penetrates through the lower end of the connecting rod 103, and both ends of the second rotating shaft 107 are respectively rotatably connected inside the two bearings 106.

[0030] When the support blocks 5 move away from each other, the connecting rod 103 arranged between the first U-shaped frame 101 and the second U-shaped frame 105 realizes the flexible connection between the connecting rod 103 and the first U-shaped frame 101 and the second U-shaped frame 105 through the cooperation of the first rotating shaft 104, the bearings 102, the second rotating shaft 107 and the bearings 106. Under the cooperation of the spring 9 and the through groove 11, the connecting ring 8 will be driven to descend stably, thereby forming a stable support structure for the jack body 6, preventing the jack body 6 from shaking during work, and effectively improving the stability of the jack during operation.

[0031] Working principle: When the device is in use, first place the device at a suitable position for use, and then drive the rotating rod 205 to rotate by rotating the knob 204. With the cooperation of the first bevel gear 203, the second bevel gear 206 and the connecting rod 201, drive the two threaded columns 202 to rotate, thereby driving the two mounting plates 207 to move away from each other. Then, with the cooperation of the fixed rod 3 and the limiting groove 4, drive the two support blocks 5 to move away from each other, increasing the bottom support area. When the support block 5 moves away, the connecting rod 103 arranged between the first U-shaped frame 101 and the second U-shaped frame 105 realizes the flexible connection between the connecting rod 103 and the first U-shaped frame 101 and the second U-shaped frame 105 through the cooperation of the first rotating shaft 104, the first bearing 102, the second rotating shaft 107 and the second bearing 106. With the cooperation of the spring 9 and the through groove 11, drive the connecting ring 8 to descend stably, forming a stable support structure for the jack body 6. Then, control the jack body 6 to perform the jacking operation.

[0032] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A jack bearing connecting rod structure, comprising a base (1) and an adjusting mechanism (2), characterized in that: The adjusting mechanism (2) is installed inside the base (1). The adjusting mechanism (2) includes a connecting rod (201). The connecting rod (201) is arranged inside the base (1). Threaded columns (202) are fixedly connected to both the left and right ends of the connecting rod (201). One end of each of the two threaded columns (202) away from the connecting rod (201) is rotatably connected to the inner wall of the base (1). A first bevel gear (203) is fixedly connected to the surface of the connecting rod (201). A knob (204) is arranged on the base (1). A rotating rod (205) is fixedly connected to the knob (204). One end of the rotating rod (205) away from the knob (204) penetrates through the front surface of the base (1) and extends into the base (1). A second bevel gear (206) is fixedly connected to one end of the rotating rod (205) away from the knob (204). The first bevel gear (203) is meshed with the second bevel gear (206). An installation plate (207) is threadedly connected to the surface of the threaded column (202).

2. The jack bearing connecting rod structure according to claim 1, characterized in that: There are two installation plates (207). The two installation plates (207) are symmetrically distributed on the surfaces of the two threaded columns (202) respectively.

3. A jack bearing connecting rod structure according to claim 2, characterized in that: Two fixing rods (3) are fixedly connected to the sides of the two installation plates (207) away from each other. Four limiting grooves (4) are formed in the left and right side surfaces of the base (1). One end of the fixing rod (3) away from the installation plate (207) penetrates through the inside of the limiting groove (4) and extends to the outside of the base (1).

4. A jack bearing connecting rod structure according to claim 3, characterized in that: Support blocks (5) are fixedly connected to one ends of two adjacent fixing rods (3) away from the installation plate (207). A jack body (6) is installed on the upper surface of the base (1). A housing (7) is sleeved on the outer surface of the jack body (6). The lower end of the housing (7) is fixedly connected to the upper surface of the base (1). A connecting ring (8) is slidably connected to the surface of the jack body (6). The connecting ring (8) is arranged between the jack body (6) and the housing (7). A spring (9) is fixedly connected to the bottom surface of the connecting ring (8). The lower end of the spring (9) is fixedly connected to the upper surface of the base (1).

5. A jack bearing connecting rod structure according to claim 4, characterized in that: Bearing connecting rod mechanisms (10) are installed on both the left and right sides of the connecting ring (8). Through grooves (11) are formed in the left and right side surfaces of the housing (7). The lower ends of the two bearing connecting rod mechanisms (10) respectively penetrate through the inside of the two through grooves (11) and extend to the left and right sides of the housing (7).

6. A jack bearing connecting rod structure according to claim 5, characterized in that: The bearing connecting rod mechanism (10) includes a first U-shaped frame (101). The first U-shaped frame (101) is fixedly connected to the side surface of the connecting ring (8), and the first U-shaped frame (101) is arranged inside the through groove (11).

7. A jack bearing connecting rod structure according to claim 6, characterized in that: Both sides of the first U-shaped frame (101) are equipped with the first bearings (102). A connecting rod (103) is arranged inside the first U-shaped frame (101). A first rotating shaft (104) passes through the upper end of the connecting rod (103). Two ends of the first rotating shaft (104) are respectively rotatably connected inside the two first bearings (102).

8. The jack bearing connecting rod structure according to claim 7, characterized in that: The lower end of the connecting rod (103) is provided with a second U-shaped frame (105). The second U-shaped frame (105) is fixedly connected to the upper surface of the support block (5). Both sides of the second U-shaped frame (105) are equipped with the second bearings (106). A second rotating shaft (107) passes through the lower end of the connecting rod (103). Two ends of the second rotating shaft (107) are respectively rotatably connected inside the two second bearings (106).

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