Pedal type lifting device

Abstract

The utility model discloses a pedal type lifting device which comprises a connecting plate, a lifting mechanism and a supporting seat, and the lifting mechanism comprises a movable column and an adjusting connecting rod. The movable column is composed of an upper cylinder, a lower cylinder and a reset spring. The upper cylinder and the lower cylinder are sleeved with each other, and the two ends of the reset spring are fixedly connected with the upper cylinder and the lower cylinder respectively. The adjusting connecting rod consists of a first connecting rod and a second connecting rod; wherein the second connecting rod comprises a supporting part, a rotating shaft and an operating part; one end of the first connecting rod is connected with the upper cylinder through a hinge; the second connecting rod is hinged to the lower cylinder through a rotating shaft; when the lifting device is used, the lifting device is mounted below equipment through the connecting plate, and the equipment can be quickly lifted to a certain height with small force by treading the pedal according to the lever principle.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a pedal type lifting device. Background Art

[0002] During the use of the vehicle simulation test bench, the bench needs to be raised regularly to replace the universal wheels at the bottom. The conventional method is to install screws at the bottom of the bench to adjust the support feet. When the bench needs to be raised, the screws of the support feet are turned one by one to extend the support feet and lift the bench into the air. Although this solution has cost advantages, it is time-consuming and labor-intensive, has low efficiency, and requires additional tools, which is more troublesome to operate. Utility Model Content

[0003] In view of the above-mentioned deficiencies of the current screw-adjustable support device, the utility model provides a pedal-type lifting device, which can achieve the effect of convenience and labor saving.

[0004] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0005] A pedal-type lifting device comprises a connecting plate, a lifting mechanism and a supporting seat, wherein the lifting mechanism comprises a movable column and an adjusting connecting rod; the movable column consists of an upper cylinder and a lower cylinder which are sleeved and connected; the adjusting connecting rod consists of a first connecting rod and a second connecting rod; wherein the second connecting rod comprises a supporting portion, a rotating shaft and an operating portion; one end of the first connecting rod is connected to the upper cylinder by a hinge, and the other end is hinged to the supporting portion; the second connecting rod is hinged to the lower cylinder by a rotating shaft; the movable column also comprises a reset spring; and the two ends of the reset spring are respectively fixedly connected to the upper cylinder and the lower cylinder.

[0006] According to one aspect of the utility model, the operating portion and the supporting portion form an angle of 90°; the length of the operating portion is greater than the length of the supporting portion.

[0007] According to one aspect of the utility model, a foot pedal is provided at the end of the operating portion.

[0008] According to one aspect of the utility model, when the lifting device is in the retracted state, the foot pedal is parallel to the horizontal plane.

[0009] According to one aspect of the utility model, a plurality of mounting holes are provided on the connecting plate; the mounting holes are waist-shaped holes.

[0010] According to one aspect of the utility model, a non-slip pad is provided at the bottom of the support seat.

[0011] Advantages of the utility model:

[0012] An adjusting link consisting of a first link and a second link is provided, wherein the second link includes a supporting portion, a rotating shaft and an operating portion; one end of the first link is connected to the upper cylinder by a hinge, and the other end is hinged to the supporting portion; the second link is hinged to the lower cylinder by the rotating shaft, and the lever principle can be utilized to use a smaller force to lift and extend the movable column to raise the equipment, and a foot pedal is provided at the end of the second link to facilitate the operator to perform lifting and lowering operations by stepping on the foot, which is more convenient and quick; a plurality of waist-shaped holes are provided on the connecting plate to facilitate installation under various equipment, thereby increasing the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a structural schematic diagram of a foot-operated lifting device according to the utility model;

[0015] Figure 2 It is a cross-sectional view of a foot-operated lifting device according to the utility model;

[0016] Figure 3 It is a schematic diagram of a foot-operated lifting device of the utility model in a folded state;

[0017] Figure 4 It is a schematic diagram of a foot-operated lifting device of the utility model in an unfolded state.

[0018] Legend: 1. Connecting plate; 11. Mounting hole; 2. Movable column; 21. Upper cylinder; 22. Lower cylinder; 23. Return spring; 3. Adjusting connecting rod; 31. First connecting rod; 32. Second connecting rod; 321. Support part; 322. Rotating shaft; 323. Operating part; 324. Foot pedal; 4. Support seat. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a pedal-type lifting device comprises a connecting plate 1, a lifting mechanism and a support seat 4, wherein the lifting mechanism comprises a movable column 2 and an adjusting connecting rod 3; the movable column 2 comprises an upper cylinder 21, a lower cylinder 22 and a return spring 23; the upper cylinder 21 and the lower cylinder 22 are sleeved with each other, and the two ends of the return spring 23 are fixedly connected to the upper cylinder 21 and the lower cylinder 22 respectively; the adjusting connecting rod 3 comprises a first connecting rod 31 and a second connecting rod 32; wherein the second connecting rod 32 comprises a supporting portion 321, a rotating shaft 322 and an operating portion 323; one end of the first connecting rod 31 is connected to the upper cylinder 21 by a hinge, and the other end is hinged to the supporting portion 321; the second connecting rod 32 is hinged to the lower cylinder 22 by a rotating shaft 322;

[0022] When in use, several lifting devices are fixedly installed under the equipment to be lifted through the mounting plate. When the lifting device is in the retracted state (such as Figure 3 As shown in the figure, under the action of the return spring 23, the upper cylinder 21 and the lower cylinder 22 are in a retracted state, and the first connecting rod 31 and the second connecting rod 32 are in a folded state. At this time, the support seat 4 should be suspended; when the equipment needs to be raised, the operator presses down the operating part 323, the support part 321 is lifted upward and drives the first connecting rod 31 to rotate, first driving the lower cylinder 22 to move downward until the support seat 4 contacts the bottom surface, and then the support part 321 continues to lift upward, and drives the upper cylinder 21 to move upward through the first connecting rod 31 until it is fully unfolded (as shown in the figure). Figure 4 As shown), during this process, the equipment is lifted to a certain height to facilitate maintenance operations on the bottom of the equipment;

[0023] A foot pedal 324 is provided at the end of the operating portion 323 to facilitate the operator to apply downward pressure to the operating portion 323 by stepping on it.

[0024] The operating part 323 is at an angle of 90° to the supporting part 321, and when the lifting device is in the folded state, the foot pedal 324 remains substantially parallel to the horizontal plane, which can reduce the degree of protrusion of the components of the lifting device when it is in the folded state, and minimize the impact of the lifting device on the equipment body; the length of the operating part 323 is greater than the length of the supporting part 321, to be precise, the distance from the foot pedal 324 to the rotating shaft 322 is greater than the distance from the connection between the supporting part 321 and the first connecting rod 31 to the rotating shaft 322, so that the long lever arm can be used to achieve a labor-saving effect.

[0025] A return spring 23 (such as Figure 2As shown in the figure, when the lifting device is in the retracted state, the return spring 23 is used to tighten the lifting device to keep the support seat 4 in a suspended state; when the operator steps on the pedal, it is necessary to overcome the tension of the return spring 23. In actual applications, the hinge between the first connecting rod 31 and the support portion 321 has a certain movable gap. After the lifting device is fully raised, it can be locked under the pressure of the equipment and the tension of the return spring 23. The lifting device can only be lowered when the operator applies a certain degree of force to lift the foot pedal 324.

[0026] Embodiment 2

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a pedal-type lifting device comprises a connecting plate 1, a lifting mechanism and a support seat 4, wherein the lifting mechanism comprises a movable column 2 and an adjusting connecting rod 3; the movable column 2 comprises an upper cylinder 21, a lower cylinder 22 and a return spring 23; the upper cylinder 21 and the lower cylinder 22 are sleeved with each other, and the two ends of the return spring 23 are fixedly connected to the upper cylinder 21 and the lower cylinder 22 respectively; the adjusting connecting rod 3 comprises a first connecting rod 31 and a second connecting rod 32; wherein the second connecting rod 32 comprises a supporting portion 321, a rotating shaft 322 and an operating portion 323; one end of the first connecting rod 31 is connected to the upper cylinder 21 by a hinge, and the other end is hinged to the supporting portion 321; the second connecting rod 32 is hinged to the lower cylinder 22 by a rotating shaft 322;

[0028] When in use, several lifting devices are fixedly installed under the equipment to be lifted through the mounting plate. When the lifting device is in the retracted state (such as Figure 3 As shown in the figure, under the action of the return spring 23, the upper cylinder 21 and the lower cylinder 22 are in a retracted state, and the first connecting rod 31 and the second connecting rod 32 are in a folded state. At this time, the support seat 4 should be suspended; when the equipment needs to be raised, the operator presses down the operating part 323, the support part 321 is lifted upward and drives the first connecting rod 31 to rotate, first driving the lower cylinder 22 to move downward until the support seat 4 contacts the bottom surface, and then the support part 321 continues to lift upward, and drives the upper cylinder 21 to move upward through the first connecting rod 31 until it is fully unfolded (as shown in the figure). Figure 4 As shown), during this process, the equipment is lifted to a certain height to facilitate maintenance operations on the bottom of the equipment;

[0029] A foot pedal 324 is provided at the end of the operating part 323, so that the operator can apply downward pressure to the operating part 323 by stepping on it; further, the foot pedal 324 should be provided with an anti-slip texture or be pasted with an anti-slip material such as a rubber pad, which can minimize the possibility of injury accidents caused by slipping of the soles of the operator's feet when operating the lifting device, thereby reducing the chance of injury.

[0030] The operating part 323 is at an angle of 90° to the supporting part 321, and when the lifting device is in the folded state, the foot pedal 324 remains substantially parallel to the horizontal plane, which can reduce the degree of protrusion of the components of the lifting device when it is in the folded state, and minimize the impact of the lifting device on the equipment body; the length of the operating part 323 is greater than the length of the supporting part 321, to be precise, the distance from the foot pedal 324 to the rotating shaft 322 is greater than the distance from the connection between the supporting part 321 and the first connecting rod 31 to the rotating shaft 322, so that the long lever arm can be used to achieve a labor-saving effect.

[0031] A return spring 23 (such as Figure 2 As shown in the figure, when the lifting device is in the retracted state, the return spring 23 is used to tighten the lifting device to keep the support seat 4 in a suspended state; when the operator steps on the pedal, it is necessary to overcome the pulling force of the return spring 23. In actual applications, the hinge between the first connecting rod 31 and the support portion 321 has a certain movable gap. After the lifting device is fully raised, it can be locked under the pressure of the equipment and the pulling force of the return spring 23. The lifting device can only be lowered when the operator applies a certain degree of force to lift the foot pedal 324; preferably, a hydraulic shock absorber can also be arranged between the upper cylinder 21 and the lower cylinder 22 to absorb vibrations during the rising and falling processes, thereby providing better protection for the equipment.

[0032] The connecting plate 1 is used for fixing and mounting on the platform to be lifted, and is provided with a plurality of mounting holes 11; the mounting holes 11 are waist-shaped holes, which are convenient for matching with screw holes of various specifications and spacings, thereby improving the applicability of the lifting mechanism.

[0033] Furthermore, an anti-skid pad is provided at the bottom of the support seat 4, which can increase stability and avoid slipping when the operator operates the lifting device; at the same time, the anti-skid pad can also play a certain buffering role when operating the lifting device.

[0034] Advantages of the utility model:

[0035] An adjusting link consisting of a first link and a second link is provided, wherein the second link includes a supporting portion, a rotating shaft and an operating portion; one end of the first link is connected to the upper cylinder by a hinge, and the other end is hinged to the supporting portion; the second link is hinged to the lower cylinder by the rotating shaft, and the lever principle can be utilized to use a smaller force to lift and extend the movable column to raise the equipment, and a foot pedal is provided at the end of the second link to facilitate the operator to perform lifting and lowering operations by stepping on the foot, which is more convenient and quick; a plurality of waist-shaped holes are provided on the connecting plate to facilitate installation under various equipment, thereby increasing the flexibility of use.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A pedal-type lifting device, comprising a connecting plate (1), a lifting mechanism and a support seat (4), characterized in that: The lifting mechanism comprises a movable column (2) and an adjusting connecting rod (3); the movable column (2) is composed of an upper cylinder (21) and a lower cylinder (22) which are sleeved and connected; the adjusting connecting rod (3) is composed of a first connecting rod (31) and a second connecting rod (32); wherein the second connecting rod (32) comprises a supporting portion (321), a rotating shaft (322) and an operating portion (323); one end of the first connecting rod (31) is connected to the upper cylinder (21) through a hinge, and the other end is hinged to the supporting portion (321); the second connecting rod (32) is hinged to the lower cylinder (22) through the rotating shaft (322); the movable column (2) also comprises a reset spring (23); the two ends of the reset spring (23) are respectively fixedly connected to the upper cylinder (21) and the lower cylinder (22).

2. The pedal-type lifting device according to claim 1, characterized in that: The operating portion (323) and the supporting portion (321) form an angle of 90°; the length of the operating portion (323) is greater than the length of the supporting portion (321).

3. The pedal-type lifting device according to claim 2, characterized in that: A foot pedal (324) is provided at the end of the operating portion (323).

4. The pedal-type lifting device according to claim 3, characterized in that: When the lifting device is in the retracted state, the foot pedal (324) is parallel to the horizontal plane.

5. The pedal-type lifting device according to claim 1, characterized in that: The connecting plate (1) is provided with a plurality of mounting holes (11); the mounting holes (11) are waist-shaped holes.

6. The pedal-type lifting device according to claim 1, characterized in that: The bottom of the support seat (4) is provided with an anti-slip pad.

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