Built-in vehicle jack

Abstract

The invention relates to the automobile industry and can be used for lifting and lowering vehicles under road, field and controlled conditions. The technical result is that of providing for the reliability and durability of the structural elements of a jack, increasing vehicle lifting speed, minimizing physical effort and time, and also providing for the stability of the jack when in use. This is achieved by means of a built-in vehicle jack comprising two telescopic legs built into the frame of a vehicle body, wherein the telescopic legs are disposed in the middle part of the frame, at the sides of the vehicle body, and each telescopic leg has a housing with a keyed tube disposed therein and a hand-operated mechanism in the form of a rod that is controlled through the interaction of a large bevel gear and a small bevel gear having a hexagonal bolt, wherein the upper part of the rod is disposed inside the keyed tube, the lower part of the rod has attached thereto a support with fasteners, a bearing and a supporting nut, and the lower end of the rod has an opening for connection to a windable support by means of a screw thread.

Description

[0001] BUILT-IN VEHICLE JACK

[0002] The invention relates to the automotive industry, in particular to jacks, and can be used for lifting and lowering vehicles under road, field and stationary conditions.

[0003] A jack for a vehicle is known, comprising an articulated lever mechanism formed by two pairs of levers, where each said pair includes lower and upper levers pivotally connected to each other by means of an axial rod, wherein the lower lever of each pair is pivotally connected to the lower support, and the upper lever of each pair is pivotally connected to the upper element, a screw located diagonally of the articulated lever mechanism, in which the upper and lower levers of at least one of the pairs are additionally connected to each other by a bracket, the end sections of which are located on the outer side of the jack in planes X-X and YY, intersecting plane ZZ, in which the central section of the bracket is located, containing an opening for receiving the screw and mated with the mating section of the axial rod, made flattened / RU 7848 U1, published 27.11.2008 / .

[0004] The disadvantages of the described design include the relative complexity of manufacturing the jack, due to the presence of a technological operation, and, accordingly, additional financial costs, and the insufficiently high stability of the jack, which often leads to the vehicle falling over.

[0005] Also known is a car jack, road jack - collapsible. It consists of a collapsible non-hermetic telescopic stand without protectors and a rubber chamber - preferably, or from another airtight material. On the jack cover there is a platform with ribs on which the car rests. The chamber is inside the stand and is attached to it. For passenger cars, the jack is made as a separate device that is connected to the compressor. For trucks and other equipment that has a compressor as part of the equipment, the jack can be connected to the compressor of this car through a nipple for connecting the jack with a device for an additional compressed air outlet from the compressor / RU 2334634 C2, published. 09.27.2008 / .

[0006] The disadvantages of this analogue are the difficulty of connecting the jack to a power source for certain types of vehicles, the expenditure of certain physical effort and time to install the jack and its subsequent operation, as well as the insufficiently high stability of the jack, which often leads to the vehicle falling over.

[0007] The closest analogue in technical essence to the claimed invention is a jack for a vehicle, which is provided with at least two telescopic racks built into the supporting part of the vehicle, and the compressor is connected to at least one control panel by means of electric wires, and at least two telescopic racks by means of feed channels. The jack is preferably provided with four telescopic racks, two control panels. The control panel contains electric buttons with the function of lifting and lowering at least two telescopic racks of the vehicle. The telescopic racks are provided with a platform for abutment with a surface. The jack is additionally provided with supports for the telescopic racks, made removable / KZ 25651 A4, published 16.04.2012 / .

[0008] The disadvantage of this analogue is that the design elements of the compressor and pneumatic elements of the built-in jack quickly wear out and fail during operation of the built-in jack of the vehicle. The objective of the invention is to create a new simplified design of a built-in jack for a vehicle with improved technical characteristics.

[0009] The technical result is the reliability and durability of the jack design elements, an increase in the speed of lifting the vehicle, minimization of physical effort, time, as well as the stability of the jack during operation of the jack (when changing wheels or during any other current repairs).

[0010] The author unexpectedly discovered that if a vehicle is equipped with a built-in mechanical jack, the reliability and durability of the built-in jack elements increases, and it is possible to quickly lift a vehicle in the field, regardless of weather conditions, spending a minimum amount of physical effort and time (there is no need to install a jack, connect it to a power source, etc.).

[0011] This is achieved by the fact that the built-in jack for a vehicle, equipped with two telescopic struts built into the supporting frame of the vehicle body, according to the invention, the telescopic struts are located in the middle part of the supporting frame on the sides of the vehicle body, each telescopic strut is equipped with a body, inside which a pipe with veneer is located, a mechanism with a manual drive, which is a rod adjusted by means of a large bevel gear and a small bevel gear interacting with each other with a hexagonal bolt, wherein the upper part of the rod is located inside the pipe with veneer, and a support with fasteners, a bearing and a support nut are fixed to the lower part of the rod, the lower end of the rod is provided with an opening for connecting to the unscrewing support by means of a thread.

[0012] The hexagonal bolt of the small bevel gear is designed to be connected to a mechanical type drive handle for rotation. The pipe with veneer has a veneer groove for the guide and a guide recess, due to which the rod will not rotate.

[0013] Figure 1 shows a visual diagram of a built-in jack for a vehicle, on which the following positions are indicated:

[0014] 1 - body; 2 - rod; 3 - large bevel gear; 4 - small bevel gear with hexagonal bolt; 5 - support with fasteners; 6 - bearing; 7 - pipe with veneer; 8 - support nut; 9 - unscrewing support; 10 - guide recess; 11 - veneer groove for guide.

[0015] Figures 2-3 show a diagram of the placement of a built-in jack in the supporting part of a vehicle.

[0016] The built-in jack for a vehicle is provided with two telescopic stands built into the supporting frame of the vehicle body, in which the telescopic stands are located in the middle part of the supporting frame on the sides of the vehicle body.

[0017] Each telescopic stand is provided with a body (1), inside of which is located a pipe with veneer (7), a mechanism with a manual drive, which is a rod (2), adjusted by means of a large bevel gear (3) and a small bevel gear with a hexagonal bolt (4) interacting with each other, wherein the upper part of the rod (2) is located inside the pipe with veneer (7), and a support with fasteners (5), a bearing (6) and a support nut (8) are fixed to the lower part of the rod (2), the lower end of the rod (2) is provided with an opening for connection with a twisting support (9) by means of a thread.

[0018] The hexagonal bolt of the small bevel gear (4) is designed to be connected to a mechanical type drive handle for rotation. The pipe with veneer (7) has a veneer groove for the guide (11) and a guide recess (10).

[0019] The invention is carried out as follows.

[0020] Example. A passenger car has a punctured rear tire. The driver takes a mechanical type drive handle, inserts it into the hole in the vehicle body and connects it to the hexagonal bolt of the small gear of the built-in jack mechanism and begins to turn the handle, thereby extending the lower part of the telescopic stand together with the stop from under the supporting part of the vehicle body until the jack raises the supporting part of the car to a height at which the installation and removal of the wheel is possible. Then the driver removes the wheel and installs the spare wheel. After completing the installation of the spare wheel, the driver returns the jack to its original position using the handle.

[0021] The manual drive mechanism also has the ability to be connected to an electric drive, by means of which it is possible to rotate the hexagonal bolt of the small bevel gear, and thereby regulate the extension of the rod with the unscrewing support from the vehicle body.

Claims

CLAUSE OF THE INVENTION 1. A built-in jack for a vehicle, equipped with two telescopic struts built into the supporting frame of the vehicle body, characterized in that the telescopic struts are located in the middle part of the supporting frame on the sides of the vehicle body, each telescopic strut is equipped with a body, inside which is a pipe with veneer, a mechanism with a manual drive, which is a rod adjusted by means of a large bevel gear and a small bevel gear interacting with each other with a hexagonal bolt, wherein the upper part of the rod is located inside the pipe with veneer, and a support with fasteners, a bearing and a support nut are fixed to the lower part of the rod, the lower end of the rod is provided with an opening for connection to the unscrewing support by means of a thread.

2. A jack according to item 1, characterized in that the hexagonal bolt of the small bevel gear is designed with the possibility of connection to a mechanical type drive handle for rotation.

3. The jack according to item 1, characterized in that the pipe with veneer has a veneer groove for the guide and a guide recess.

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