Coping type jack

Abstract

The utility model discloses a coping jack which comprises a base, a hinge lifting assembly and a driving assembly, the hinge lifting assembly comprises a first hinge supporting leg, one end of the first hinge supporting leg is rotationally connected with the base through a first rotating shaft, and the driving assembly comprises a pedal supporting leg, a dowel bar and a pedal plate. One end of the pedal supporting leg is rotationally connected with the base through a second rotating shaft, the other end of the pedal supporting leg is rotationally connected with the pedal plate, one end of the dowel bar is rotationally connected with the other end of the first hinge supporting leg through a third rotating shaft, and the other end of the dowel bar is rotationally connected with the middle of the pedal supporting leg through a fourth rotating shaft; the first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are arranged in parallel. According to the coping type jack, when the hinge lifting assembly abuts against the lower portion of the threshold beam of the automobile, the threshold beam of the automobile can be well jacked upwards by treading the pedal, operation is convenient, the structure is simple, production cost is low, and the jacking speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of jacks, in particular to a pressure-top jack. Background Art

[0002] During the normal use of a car, the spare tire may need to be replaced. When replacing the spare tire, it is necessary to use tools such as a jack to raise the car body to relieve the pressure of the car body's weight on the tire and facilitate loading and unloading of the tire.

[0003] However, the jacks in the related art have a complex structure, high production cost and high maintenance cost, and, like the screw jack, the jacking is performed by feeding the screw, and the jacking speed is slow. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a top-pressing jack, which has a simple structure, low production cost and fast lifting speed.

[0005] The top-pressing jack according to the embodiment of the utility model includes: a base; a hinge lifting assembly, the hinge lifting assembly includes: a first hinge leg, one end of the first hinge leg is rotatably connected to the base through a first rotating shaft; a driving assembly, the driving assembly includes a foot leg, a force transmission rod and a foot pedal, one end of the foot leg is rotatably connected to the base through a second rotating shaft, the other end of the foot leg is rotatably connected to the foot pedal through a sixth rotating shaft, one end of the force transmission rod is rotatably connected to the other end of the first hinge leg through a third rotating shaft, and the other end of the force transmission rod is rotatably connected to the middle part of the foot leg through a fourth rotating shaft, wherein the first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are arranged in parallel.

[0006] According to the pressure-type jack of the embodiment of the utility model, a four-bar structure is constructed by the first section, the base, the force transmission rod and the first hinge leg, and a lever with the second rotating shaft as the fulcrum is constructed between the first section and the entire foot pedal leg, and the length of the first section is smaller than the length of the entire foot pedal leg. Therefore, when the hinge lifting assembly is under the door sill beam of the car, the door sill beam of the car can be lifted up by stepping on the foot pedal. The operation is convenient, the structure is simple, the production cost is low, and the lifting speed is fast.

[0007] In addition, the top-pressing jack according to the utility model may also have the following additional technical features:

[0008] In some embodiments of the present invention, the hinge lifting assembly also includes: a second hinge leg and a vehicle body support plate, one end of the second hinge leg is rotatably connected to the first hinge leg via the third rotating shaft, and the vehicle body support plate is rotatably connected to the other end of the second hinge leg via the fifth rotating shaft.

[0009] In some embodiments of the utility model, the top-pressing jack also includes a limit assembly, which includes a first limit member and a second limit member, the first limit member is arranged on the first hinge leg, and the second limit member is arranged on the second hinge leg, and the first limit member and the second limit member cooperate to limit the rotation range between the first hinge leg and the second hinge leg.

[0010] In some embodiments of the present invention, the driving assembly is arranged on one side of the rotation direction of the first hinge leg, the first limiting member is arranged on the side of the first hinge leg away from the driving assembly, and the second limiting member is arranged on the side of the second hinge leg away from the driving assembly, and the first limiting member and the second limiting member are suitable for abutting up and down to limit the rotation between the first hinge leg and the second hinge leg.

[0011] In some embodiments of the present invention, when the first limiting member and the second limiting member are in vertical contact with each other, an angle between the first hinge leg and the second hinge leg on a side away from the driving assembly is an obtuse angle.

[0012] In some embodiments of the utility model, the base includes a first side panel, a second side panel and an intermediate panel connected between the first side panel and the second side panel, the first side panel, the second side panel and the intermediate panel form a groove opening downward, both ends of the first rotating shaft and the second rotating shaft are respectively fixed to the first side panel and the second side panel, a first window and a second window are provided on the intermediate panel, the first hinge leg passes through the first window and is connected to the first rotating shaft, and the foot pedal leg passes through the second window and is connected to the second rotating shaft.

[0013] In some embodiments of the present utility model, the pedal leg has a bending portion, and the fourth rotating shaft is arranged on the bending portion.

[0014] In some embodiments of the present invention, the first hinge leg and the footrest leg are both integrally stamped from metal plates.

[0015] In some embodiments of the present invention, the base is formed by integrally stamping a metal plate.

[0016] In some embodiments of the present invention, the sixth rotating shaft and the foot pedal are integrally formed, and the fifth rotating shaft and the vehicle body support plate are integrally formed.

[0017] In some embodiments of the present invention, the bottom of the base has a plurality of anti-slip teeth.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 The utility model is a schematic structural diagram of a car and a top pressure jack according to an embodiment of the utility model.

[0021] Figure 2 It is a structural schematic diagram of a top pressure jack according to an embodiment of the utility model.

[0022] Figure 3 It is an exploded view of a top pressure jack according to an embodiment of the utility model.

[0023] Figure 4 A front view of a top pressure jack according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] Top pressure jack 100,

[0026] Base 1, first side plate 11, second side plate 12, middle plate 13, first window 131, second window 132, anti-slip teeth 14,

[0027] Hinge lifting assembly 2, first hinge leg 21, second hinge leg 22, vehicle body support plate 23,

[0028] Driving assembly 3, pedal leg 31, bending portion 311, force transmission rod 32, pedal 33,

[0029] The first rotating shaft 41, the second rotating shaft 42, the third rotating shaft 43, the fourth rotating shaft 44, the fifth rotating shaft 45, the sixth rotating shaft 46, the limiting assembly 5, the first limiting member 51, the second limiting member 52,

[0030] Car 1000. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Reference below Figure 1-Figure 4 A top jack 100 according to an embodiment of the present invention is described.

[0035] like Figure 1-Figure 4As shown, the top-pressing jack 100 according to the embodiment of the utility model includes a base 1, a hinge lifting assembly 2 and a driving assembly 3, the hinge lifting assembly 2 includes: a first hinge leg 21, one end of the first hinge leg 21 is rotatably connected to the base 1 through a first rotating shaft 41; the driving assembly 3 includes a pedal leg 31, a force transmission rod 32 and a foot pedal 33, one end of the pedal leg 31 is rotatably connected to the base 1 through a second rotating shaft 42, the other end of the pedal leg 31 is rotatably connected to the foot pedal 33 through a sixth rotating shaft 46, one end of the force transmission rod 32 is rotatably connected to the other end of the first hinge leg 21 through a third rotating shaft 43, and the other end of the force transmission rod 32 is rotatably connected to the middle part of the pedal leg 31 through a fourth rotating shaft 44, wherein the first rotating shaft 41, the second rotating shaft 42, the third rotating shaft 43 and the fourth rotating shaft 44 are arranged in parallel.

[0036] like Figure 1-Figure 4 As shown, in the front-to-back direction, the first rotating shaft 41 and the second rotating shaft 42 are spaced apart in the front-to-back direction, the axis of the first rotating shaft 41 and the axis of the second rotating shaft 42 both extend in the left-right direction and are arranged in parallel, the lower end of the first hinge leg 21 is connected to the first rotating shaft 41, thereby, the first hinge leg 21 can be rotatably connected to the base 1 through the first rotating shaft 41, and one end of the pedal leg 31 is connected to the second rotating shaft 42, thereby, the pedal leg 31 can be rotatably connected to the base 1 through the second rotating shaft 42, further, one end of the force transmission rod 32 is rotatably connected to the other end of the first hinge leg 21 through the third rotating shaft 43, and the other end of the force transmission rod 32 One end is rotatably connected to the middle part of the pedal leg 31 through the fourth rotating shaft 44. When the pedal 33 is stepped on to make the pedal leg 31 rotate around the second rotating shaft 42, the pedal leg 31 can drive the force transmission rod 32 to pull the first rotating shaft 41, so that the first rotating shaft 41 drives the first hinge leg 21 to rotate. For example, the first hinge leg 21 can rotate in the counterclockwise direction, so that the upper end of the first hinge leg 21 moves upward to lift one side of the vehicle body. After lifting one side of the vehicle body, the first hinge leg 21 can also rotate clockwise to put down the lifted side of the vehicle body. It is easy to operate, has a simple structure and low production cost.

[0037] Furthermore, in the above example, the footrest leg 31 can be divided into two sections by the fourth rotating shaft 44, with the first section being rotatably connected to the base 1 and the other section being the second section. Thus, the first section, the base 1, the force transmission rod 32 and the first hinge leg 21 are equivalent to constructing a four-bar structure, and a lever with the second rotating shaft 42 as a fulcrum is constructed between the first section and the entire footrest leg 31, and the length of the first section is smaller than the length of the entire footrest leg 31. Therefore, when the hinge lifting assembly 2 is under the door sill beam of the automobile 1000, the door sill beam of the automobile 1000 can be better lifted up by stepping on the foot pedal 33.

[0038] According to the pressure-type jack 100 of the embodiment of the utility model, a four-bar structure is constructed by the first section, the base 1, the force transmission rod 32 and the first hinge leg 21, and a lever with the second rotating shaft 42 as a fulcrum is constructed between the first section and the entire foot leg 31, and the length of the first section is smaller than the length of the entire foot leg 31. Therefore, when the hinge lifting assembly 2 is pressed under the door sill beam of the automobile 1000, the door sill beam of the automobile 1000 can be lifted up by stepping on the foot pedal 33, which is easy to operate, simple in structure, low in production cost, and fast in lifting speed.

[0039] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the hinge lifting assembly 2 also includes: a second hinge leg 22 and a vehicle body support plate 23, one end of the second hinge leg 22 is rotationally connected to the first hinge leg 21 via a third rotating shaft 43, and the vehicle body support plate 23 is rotationally connected to the other end of the second hinge leg 22 via a fifth rotating shaft 45.

[0040] That is to say, by adding a second hinge leg 22 and making the second hinge leg 22 rotatably connected to the first hinge leg 21 through the third rotating shaft 43, when the vehicle body support plate 23 is pressed under the door sill beam of the automobile 1000, under the drive of the driving assembly 3, the angle between the first hinge leg 21 and the second hinge leg 22 can gradually increase. At this time, the added second hinge leg 22 can increase the overall lifting height of the hinge lifting assembly 2, so that the door sill beam of the automobile 1000 can be effectively lifted. Moreover, it can be understood that for the same lifting height, for one hinge leg and two hinge legs, the length of the two hinge legs can be designed to be shorter. When the hinge lifting assembly 2 is stored, the first hinge leg 21 and the second hinge leg 22 with shorter lengths can occupy a smaller space, so it can be beneficial to the miniaturized design of the top-pressing jack 100.

[0041] Furthermore, the lengths of the first hinge leg 21 and the second hinge leg 22 can both be shorter, thus helping to reduce production costs.

[0042] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the top-pressing jack 100 also includes a limit assembly 5, which includes a first limit member 51 and a second limit member 52. The first limit member 51 is arranged on the first hinge leg 21, and the second limit member 52 is arranged on the second hinge leg 22. The first limit member 51 and the second limit member 52 cooperate with each other to limit the rotation range between the first hinge leg 21 and the second hinge leg 22.

[0043] That is to say, the rotation range between the first hinge leg 21 and the second hinge leg 22 can be limited by setting the limiting component 5. For example, when the door sill beam of the automobile 1000 is lifted, when the first hinge leg 21 and the second hinge leg 22 are relatively rotated to a certain angle, the first hinge leg 21 and the second hinge leg 22 can be kept in this state through the mutual limitation of the first limiting member 51 and the second limiting member 52, which is beneficial to the stability of lifting the door sill beam of the automobile 1000.

[0044] Furthermore, by limiting the mutual positioning of the first limit member 51 and the second limit member 52, it is also possible to avoid the first hinge leg 21 and the second hinge leg 22 from having an angle of rotation that is too large or too small. It can be understood that if the angle of rotation between the first hinge leg 21 and the second hinge leg 22 is too large or too small, it is easy to increase the difficulty of lowering the threshold beam of the automobile 1000. Therefore, the present application can help the top-type jack 100 to better lift and release the threshold beam of the automobile 1000 by setting the limit assembly 5.

[0045] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the driving assembly 3 is arranged on one side of the rotation direction of the first hinge leg 21, the first limiting member 51 is arranged on the side of the first hinge leg 21 away from the driving assembly 3, the second limiting member 52 is arranged on the side of the second hinge leg 22 away from the driving assembly 3, and the first limiting member 51 and the second limiting member 52 are suitable for abutting up and down to limit the rotation between the first hinge leg 21 and the second hinge leg 22. Thus, for example, when the door sill beam of the automobile 1000 is lifted, when the first hinge leg 21 and the second hinge leg 22 are relatively rotated to a certain angle, the first hinge leg 21 and the second hinge leg 22 can be kept in this state through the mutual limiting of the first limiting member 51 and the second limiting member 52, which is beneficial to the stability of lifting the door sill beam of the automobile 1000. Furthermore, since the first limit member 51 and the second limit member 52 are also in a state of upper and lower abutment, when the sill beam of the automobile 1000 transfers the weight of the vehicle body downward, the first hinge leg 21 and the second hinge leg 22 form a force transmission path, and the first limit member 51 and the second limit member 52 can form a force transmission path, thereby enabling the hinge lifting assembly 2 to more effectively support the sill beam and the vehicle body of the automobile 1000.

[0046] In one example, if Figure 1-Figure 4As shown, when the first stopper 51 and the second stopper 52 are in contact with each other, the angle between the first hinge leg 21 and the second hinge leg 22 on the side away from the driving assembly 3 is an obtuse angle. Therefore, when the first hinge leg 21 and the second hinge leg 22 rotate to this state, the connected first hinge leg 21 and the second hinge leg 22, and the first stopper 51 and the second stopper 52 in contact with each other can be locked with each other under the action of gravity, so that the hinge lifting assembly 2 can be stably maintained in this state, with high reliability and good stability.

[0047] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the base 1 includes a first side plate 11, a second side plate 12 and an intermediate plate 13 connected between the first side plate 11 and the second side plate 12. The first side plate 11, the second side plate 12 and the intermediate plate 13 form a groove opening downward. Both ends of the first rotating shaft 41 and the second rotating shaft 42 are respectively fixed on the first side plate 11 and the second side plate 12. The intermediate plate 13 is provided with a first window 131 and a second window 132. The first hinge leg 21 passes through the first window 131 to be connected to the first rotating shaft 41, and the footrest leg 31 passes through the second window 132 to be connected to the second rotating shaft 42.

[0048] For example, the base 1 may be formed by integrally stamping a metal plate, with low production cost, and the structural strength of the base 1 may be ensured by bending the metal plate.

[0049] In some embodiments of the utility model, the foot pedal leg 31 has a bending portion, and the fourth rotating shaft 44 is arranged on the bending portion. By arranging the fourth rotating shaft 44 on the bending portion 311, when the foot pedal leg 31 is driven to rotate by stepping on the foot pedal 33, the foot pedal leg 31 can undergo a certain deformation at the bending portion 311, thereby better absorbing the stress during rotation. Moreover, due to the setting of the bending portion 311, the deformation direction is stable and is not easy to affect the lifting action of the hinge lifting assembly 2.

[0050] Exemplarily, the bending portion 311 is a direction in which the pedal leg 31 is bent toward the force transmission rod 32 .

[0051] In some embodiments of the present invention, the first hinge leg 21 and the pedal leg 31 are both integrally stamped from metal plates, which has a simple structure and can effectively reduce production costs.

[0052] In some embodiments of the present invention, the bottom of the base 1 has a plurality of anti-slip teeth 14 , and thus, by providing the anti-slip teeth 14 , the friction between the base 1 and the ground can be better increased, so that when stepping on the pedal 33 , the base 1 has good stability.

[0053] In some embodiments of the utility model, the sixth rotating shaft 46 and the foot pedal 33 are integrally formed, and the fifth rotating shaft 45 and the vehicle body support plate 23 are integrally formed, which has a simple structure and high structural strength, and can effectively reduce production costs.

[0054] Other structures and operations of the top jack 100 according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0055] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 defined by the claims and their equivalents.

Claims

1. A top-pressing jack, characterized in that: include: Base; A hinge lifting assembly, the hinge lifting assembly comprising: a first hinge leg, one end of the first hinge leg being rotatably connected to the base via a first rotating shaft; A driving assembly, the driving assembly includes a foot support leg, a force transmission rod and a foot pedal, one end of the foot support leg is rotatably connected to the base via a second rotating shaft, the other end of the foot support leg is rotatably connected to the foot pedal via a sixth rotating shaft, one end of the force transmission rod is rotatably connected to the other end of the first hinged support leg via a third rotating shaft, the other end of the force transmission rod is rotatably connected to the middle part of the foot support leg via a fourth rotating shaft, wherein the first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are arranged in parallel.

2. The top-pressing jack according to claim 1, characterized in that: The hinge lifting assembly also includes: a second hinge leg and a vehicle body support plate, one end of the second hinge leg is rotatably connected to the first hinge leg via the third rotating shaft, and the vehicle body support plate is rotatably connected to the other end of the second hinge leg via the fifth rotating shaft.

3. The top-loading jack according to claim 2, characterized in that: It also includes a limit assembly, which includes a first limit member and a second limit member, the first limit member is arranged on the first hinge leg, and the second limit member is arranged on the second hinge leg, and the first limit member and the second limit member cooperate to limit the rotation range between the first hinge leg and the second hinge leg.

4. The top-pressing jack according to claim 3, characterized in that: The driving assembly is arranged on one side of the rotation direction of the first hinge leg, the first limiting member is arranged on the side of the first hinge leg away from the driving assembly, the second limiting member is arranged on the side of the second hinge leg away from the driving assembly, and the first limiting member and the second limiting member are suitable for abutting up and down to limit the rotation between the first hinge leg and the second hinge leg.

5. The top-pressing jack according to claim 4, characterized in that: When the first limiting member and the second limiting member are in vertical contact, an angle between the first hinge leg and the second hinge leg on a side away from the driving assembly is an obtuse angle.

6. The top-loading jack according to claim 1, characterized in that: The base includes a first side plate, a second side plate, and an intermediate plate connected between the first side plate and the second side plate, wherein the first side plate, the second side plate, and the intermediate plate form a groove opening downward. Both ends of the first rotating shaft and the second rotating shaft are fixed to the first side panel and the second side panel respectively, the middle panel is provided with a first window and a second window, the first hinge leg passes through the first window and is connected to the first rotating shaft, and the pedal leg passes through the second window and is connected to the second rotating shaft.

7. The top-loading jack according to claim 1, characterized in that: The pedal leg has a bending portion, and the fourth rotating shaft is arranged on the bending portion.

8. The top-pressing jack according to claim 1, characterized in that: The first hinge leg and the footrest leg are both formed by integrally stamping a metal plate, and the base is also formed by integrally stamping a metal plate.

9. The top-pressing jack according to claim 2, characterized in that: The sixth rotating shaft and the foot pedal are integrally formed, and the fifth rotating shaft and the vehicle body support plate are integrally formed.

10. The top jack according to claim 1, characterized in that: The bottom of the base is provided with a plurality of anti-slip teeth.

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