Horizontal trailer jack

Abstract

The utility model discloses a horizontal trailer jack which comprises a jack body, a first top plate is installed on the top of the jack body, a fixing plate is welded to the bottom of the first top plate, a fixing frame is connected to the surface of the fixing plate in a sleeved mode, and a fixing frame is welded to the bottom of the fixing frame. A second top plate is welded to the top of the fixing frame, and an external threaded rod is sleeved with the fixing frame. According to the horizontal trailer jack, the first top plate is installed on the top of the jack body, the fixing plate is welded to the bottom of the first top plate, meanwhile, the fixing frame is connected to the surface of the fixing plate in a sleeving mode, and the fixing frame is welded to the bottom of the fixing frame; and after the horizontal trailer jack moves to a proper position, an external threaded rod can be rotated, the external threaded rod is utilized to abut against a fixing plate, the friction force between the fixing frame and the fixing plate is increased, then a second top plate is fixed, at the moment, protection can be provided for the object, and the protection effect is provided during use.

Description

Technical Field

[0001] This utility model belongs to the field of jack technology, and in particular relates to a horizontal trailer jack. Background Technology

[0002] A jack is a small lifting device that uses a rigid lifting component as its working device to lift heavy objects within a short stroke through a top support or bottom claw. A horizontal jack is a small lifting device that uses a rigid lifting component as its working device to lift heavy objects within a short stroke through a top support.

[0003] The horizontal trailer jacks currently available on the market have the following problems in actual use:

[0004] 1. In actual use, traditional horizontal trailer jacks have a small contact area between them and the load when lifting heavy objects. As a result, the force applied by the horizontal trailer jack is concentrated in a small area. When the load is large, the lifting process may damage the contact area between the horizontal trailer jack and the load.

[0005] 2. Most horizontal trailer jacks, during use, require constant pressing of the lever. Since the horizontal trailer jack only relies on the wheels to contact the ground, the contact area is small and it does not provide a stable fixing effect. This makes the horizontal trailer jack prone to movement during use, resulting in poor stability. Utility Model Content

[0006] The purpose of this utility model is to provide a horizontal trailer jack to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the specific technical solution of this utility model is as follows: A horizontal trailer jack includes a jack body, a first top plate installed on the top of the jack body, a fixing plate welded to the bottom of the first top plate, a fixing frame sleeved on the surface of the fixing plate, a fixing frame welded to the bottom of the fixing frame, a second top plate welded to the top of the fixing frame, an external threaded rod sleeved inside the fixing frame, the external threaded rod passing through the fixing frame, one end of the external threaded rod being attached to the bottom of the fixing plate, and the second top plate being arranged in a ring shape.

[0008] Preferably, a side plate is welded to the side of the jack body, and an internal threaded seat is fixedly connected to the top of the side plate. At the same time, a screw rod is sleeved inside the internal threaded seat, the screw rod passes through the side plate, a bearing is welded to one end of the screw rod, and a base plate is welded to the surface of the bearing. A second turntable is welded to the other end of the screw rod.

[0009] Preferably, a groove is formed on the top of the second top plate, and a first anti-slip pad is adhered inside the groove.

[0010] Preferably, a fixing rod is sleeved inside the side plate, one end of the fixing rod is welded to the base plate, and the fixing rod is symmetrically distributed.

[0011] Preferably, a first turntable is welded to the other end of the external threaded rod, the external threaded rod is arranged in a ring shape, and a baffle is welded to the other end of the fixed plate.

[0012] Preferably, a second anti-slip pad is bonded to the bottom of the base plate, and a baffle is welded to the other end of the fixing rod, with the baffles arranged symmetrically.

[0013] The horizontal trailer jack of this utility model has the following advantages:

[0014] 1. This type of horizontal trailer jack features a first top plate installed on the top of the jack body, a fixed plate welded to the bottom of the first top plate, a fixed frame fitted onto the surface of the fixed plate, a fixed frame welded to the bottom of the fixed frame, a second top plate welded to the top of the fixed frame, and an external threaded rod fitted inside the fixed frame, the external threaded rod penetrating the fixed frame and with one end attached to the bottom of the fixed plate. The second top plate is arranged in a ring shape. When using the horizontal trailer jack, if the object being lifted is large, the fixed frame can be moved on the fixed plate to increase the force-bearing area of ​​the horizontal trailer jack and the object to be lifted. Once moved to a suitable position, the external threaded rod can be rotated to press against the fixed plate, increasing the friction between the fixed frame and the fixed plate, thereby fixing the second top plate. This provides protection for the object and offers a protective effect during use.

[0015] 2. This type of horizontal trailer jack features a side plate welded to the side of the jack body, with an internal threaded seat fixedly connected to the top of the side plate. A lead screw is threaded inside the internal threaded seat, passing through the side plate. A bearing is welded to one end of the lead screw, and a base plate is welded to the bearing surface. A second turntable is welded to the other end of the lead screw. When using the horizontal trailer jack, the lead screw can be rotated. Under the action of the bearing, the rotation of the lead screw is maintained, and under the action of the internal threaded seat, the lead screw can move, thereby driving the base plate to move and making contact with the ground. The base plate increases the contact area between the horizontal trailer jack and the ground, providing stability and resulting in strong stability during use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal thread seat structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the base plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the second top plate structure of this utility model.

[0021] The markings in the diagram are as follows: 1. Jack body; 2. First top plate; 3. Fixing plate; 4. Second top plate; 5. Fixing frame; 6. Fixing frame; 7. External threaded rod; 8. First turntable; 9. Groove; 10. First anti-slip pad; 11. Side plate; 12. Base plate; 13. Lead screw; 14. Fixing rod; 15. Second turntable; 16. Baffle; 17. Bearing; 18. Internal threaded seat; 19. Second anti-slip pad; 20. Baffle. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0027] To better understand the purpose, structure, and function of this utility model, a horizontal trailer jack of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] like Figure 1-4 As shown, this utility model discloses a horizontal trailer jack, comprising a jack body 1, a first top plate 2 mounted on the top of the jack body 1, a fixing plate 3 welded to the bottom of the first top plate 2, a fixing frame 5 sleeved on the surface of the fixing plate 3, a fixing frame 6 welded to the bottom of the fixing frame 5, and a second top plate 4 welded to the top of the fixing frame 5. An external threaded rod 7 is sleeved inside the fixing frame 6. By installing and rotating the external threaded rod 7, the external threaded rod 7 presses against the fixing plate 3, increasing the friction between the fixing frame 5 and the fixing plate 3, thus securing the second top plate 4. This is very convenient to use. The external threaded rod 7 passes through the fixing frame 5, with one end of the external threaded rod 7 fitting against the bottom of the fixing plate 3. The second top plate 4 is arranged in a ring shape. By installing the second top plate 4, when using the horizontal trailer jack, if the object being lifted is large, the fixing frame 5 can be moved on the fixing plate 3, thereby expanding the force-bearing area of ​​the horizontal trailer jack and the object to be lifted, thus providing protection for the object.

[0029] A side plate 11 is welded to the side of the jack body 1, and an internal thread seat 18 is fixedly connected to the top of the side plate 11. At the same time, a screw rod 13 is sleeved inside the internal thread seat 18. The screw rod 13 passes through the side plate 11. A bearing 17 is welded to one end of the screw rod 13, and a base plate 12 is welded to the surface of the bearing 17. A second turntable 15 is welded to the other end of the screw rod 13. By installing the base plate 12, the contact area between the horizontal trailer jack and the ground can be increased, providing stability to the horizontal trailer jack and making it more stable during use.

[0030] The top of the second top plate 4 has a groove 9, and the first anti-slip pad 10 is bonded inside the groove 9. By installing the first anti-slip pad 10, the friction between the second top plate 4 and the object being supported can be increased, thus improving stability during use.

[0031] A fixing rod 14 is sleeved inside the side plate 11. The base plate 12 is welded to one end of the fixing rod 14. The fixing rods 14 are symmetrically distributed. By installing the fixing rods 14, the fixing rods 14 can provide a limiting effect for the base plate 12, so that the base plate 12 can rotate during movement, and the stability is strong during use.

[0032] The other end of the external threaded rod 7 is welded with a first turntable 8. The external threaded rod 7 is arranged in a ring shape. The other end of the fixing plate 3 is welded with a baffle 20. By installing the first turntable 8, when it is necessary to rotate the external threaded rod 7, the first turntable 8 can be used as the force point. By holding the first turntable 8, the external threaded rod 7 can be directly driven to rotate, which is very convenient to use.

[0033] The bottom of the base plate 12 is bonded with a second anti-slip pad 19, and the other end of the fixing rod 14 is welded with a baffle 16. The baffles 16 are symmetrically distributed. By installing the baffles 16, the baffles 16 can provide a limiting effect for the second top plate 4, so that the second top plate 4 will not fall out of the range of the fixing plate 3, which is very convenient to use.

[0034] The working principle of this horizontal trailer jack is as follows: First, move the horizontal trailer jack to a suitable position. Then, it can be used. When using the horizontal trailer jack, the lead screw 13 can be rotated. Under the action of the bearing 17, the rotation of the lead screw 13 is maintained. Under the action of the internal thread seat 18, the lead screw 13 can move, thereby moving the base plate 12 until it contacts the ground. At this time, the base plate 12 increases the contact area between the horizontal trailer jack and the ground, facilitating the movement of the horizontal trailer jack. It provides stability and is highly stable during use. Then, the second top plate 4 is adjusted according to the size and volume of the object to be lifted. At this time, the fixing frame 5 can be moved on the fixing plate 3 to expand the force-bearing area of ​​the horizontal trailer jack and the object to be lifted. When it is moved to the appropriate position, the external threaded rod 7 can be rotated to press against the fixing plate 3, increasing the friction between the fixing frame 5 and the fixing plate 3, thereby fixing the second top plate 4. At this time, it can provide protection for the object and provide a protective effect during use. Then the horizontal trailer jack can be used.

[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A horizontal trailer jack, comprising a jack body (1), characterized in that: The jack body (1) has a first top plate (2) installed on top. The bottom of the first top plate (2) is welded with a fixing plate (3). The surface of the fixing plate (3) is fitted with a fixing frame (5). The bottom of the fixing frame (5) is welded with a fixing frame (6). The top of the fixing frame (5) is welded with a second top plate (4). The fixing frame (6) is fitted with an external thread rod (7). The external thread rod (7) passes through the fixing frame (5). One end of the external thread rod (7) is attached to the bottom of the fixing plate (3). The second top plate (4) is arranged in a ring shape.

2. The horizontal trailer jack according to claim 1, characterized in that: The jack body (1) has a side plate (11) welded to its side, and an internal thread seat (18) is fixedly connected to the top of the side plate (11). At the same time, a screw rod (13) is sleeved inside the internal thread seat (18). The screw rod (13) passes through the side plate (11). A bearing (17) is welded to one end of the screw rod (13), and a base plate (12) is welded to the surface of the bearing (17). A second turntable (15) is welded to the other end of the screw rod (13).

3. The horizontal trailer jack according to claim 1, characterized in that: The second top plate (4) has a groove (9) on its top, and a first anti-slip pad (10) is bonded inside the groove (9).

4. The horizontal trailer jack according to claim 2, characterized in that: The side plate (11) is fitted with a fixing rod (14), and one end of the fixing rod (14) is welded to the base plate (12). The fixing rod (14) is symmetrically distributed.

5. The horizontal trailer jack according to claim 1, characterized in that: The other end of the external threaded rod (7) is welded to the first turntable (8), the external threaded rod (7) is distributed in a ring shape, and the other end of the fixed plate (3) is welded to the baffle (20).

6. The horizontal trailer jack according to claim 4, characterized in that: The bottom of the base plate (12) is bonded with a second anti-slip pad (19), and the other end of the fixing rod (14) is welded with a baffle (16), which is symmetrically distributed.

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