A jack with a protection mechanism

Abstract

The utility model discloses a jack with protection mechanism, including jack body, the front end of jack body is provided with protection subassembly, and the bottom of jack body is provided with limiting component, through setting up a plurality of sheltering bent pole and reinforcing rod, can carry out anti -bumping protection to single control hydraulic valve, avoid single control hydraulic valve in the use process directly receives the bumping or the falling stone and smashes, to this improve the service life of single control hydraulic valve, and the fixed connection's auxiliary support board can support the rear end of a plurality of sheltering bent pole and limit, avoid sheltering bent pole rear end when bumping downward bending and touching single control hydraulic valve, through fixed limit ring, can avoid the deviation of jack body bottom in the use process and the shaking condition, and the locking screw of installation fixed in the internal thread through -hole can carry out the auxiliary fixation to jack body bottom, to this further improve the connection stability between jack body and support bottom plate.

Description

Technical Field

[0001] This utility model relates to the field of jack technology, specifically a jack with a protective mechanism. 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. Jacks are needed for auxiliary support during the construction of some bridges.

[0003] In the prior art, a bridge-specific jack with the publication number "CN214456461U" uses a load-bearing plate and an iron rod. When the jack is not in operation, the worker first places the load-bearing plate on the top plate, aligns the opening, and then inserts the iron rod into the opening. The load-bearing plate is firmly fixed to the top plate by the iron rod, which can effectively increase the load-bearing area of ​​the device.

[0004] However, the above technical solutions and existing technologies have the following drawbacks: Although the jack can increase its load-bearing area through the load-bearing plate, the bottom of the jack is only connected to the support plate by a single bolt. Once the bolt loosens, the connection between the jack and the support plate will become loose, and the connection stability needs to be improved. Furthermore, some existing hydraulic jacks for bridges do not have corresponding protective structures to protect the exposed hydraulic valves. As a result, during the use of hydraulic jacks to support bridges, the exposed hydraulic valves are very easy to be directly damaged by bumps or falling stones, thus causing unnecessary losses to the users. Utility Model Content

[0005] The purpose of this invention is to provide a jack with a protective mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A jack with a protective mechanism includes a jack body, a lifting lug, a return oil pipe, a support base plate, and a single-control hydraulic valve. The lifting lug is fixedly connected to the upper side of the annular side of the jack body, and the support base plate is installed at the bottom of the jack body. The single-control hydraulic valve is provided on the front side of the annular side of the jack body, and the return oil pipe is connected to the upper end face of the single-control hydraulic valve. A protective component is provided at the front end of the jack body to protect the single-control hydraulic valve from impact. A limit component is provided at the bottom of the jack body to improve the connection stability between the jack body and the support base plate.

[0007] Preferably, the protective assembly includes a mounting base, a protective curved rod, a reinforcing rod, an auxiliary support plate, and a limiting cavity. A limiting cavity is formed on the front side of the upper end of the support base plate. The mounting base is installed inside the limiting cavity. Multiple protective curved rods are connected to the upper end of the mounting base. Multiple reinforcing rods are fixedly connected between the multiple protective curved rods. An auxiliary support plate is fixedly connected to the front side of the annular side of the jack body.

[0008] Preferably, the mounting base has an internal mounting through hole, a mounting screw is inserted inside the mounting through hole, and the bottom of the limiting cavity has a fixing threaded hole, which is threadedly connected to the mounting screw.

[0009] Preferably, the limiting component includes a limiting ring, a locking screw, and an internal threaded through hole. The limiting ring is fixedly connected to the upper end face of the support base plate. The limiting ring has internal threaded through holes symmetrically opened on the left and right sides of its annular side. The locking screw is installed inside the internal threaded through hole.

[0010] Preferably, the limiting cavity matches the mounting base, and the depth of the limiting cavity is two-thirds of the thickness of the mounting base.

[0011] Preferably, the protective curved rod is L-shaped and the auxiliary support plate is arc-shaped.

[0012] Preferably, the limiting ring matches the bottom of the jack body, and the limiting ring and the supporting base plate are an integral structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By using a fixed limiting ring, the bottom of the jack body can be prevented from shifting or shaking during use. The locking screw installed in the internal threaded through hole can further fix the bottom of the jack body, thereby improving the stability of the connection between the jack body and the support base plate. 2. By setting multiple protective bends and reinforcing bars, the single-control hydraulic valve can be protected against impacts, preventing it from being directly damaged by impacts or falling stones during use, thereby improving the service life of the single-control hydraulic valve. In addition, the fixedly connected auxiliary support plate can support and limit the rear end of the multiple protective bends, preventing the rear end of the protective bends from bending downwards and touching the single-control hydraulic valve when impacted. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a left view of the protective component and the limiting component in this utility model; Figure 3 This is a structural diagram of the protective component in this utility model; Figure 4 This is a structural diagram of the supporting base plate in this utility model.

[0015] In the diagram: 1. Jack body; 2. Lifting lug; 3. Oil return pipe; 4. Protective components; 41. Mounting screw; 42. Mounting base; 43. Protective bending rod; 44. Reinforcing rod; 45. Auxiliary support plate; 46. Mounting through hole; 47. Limiting cavity; 471. Fixing threaded hole; 5. Support base plate; 6. Single-control hydraulic valve; 7. Limiting components; 71. Limiting ring; 72. Locking screw; 73. Internal threaded through hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4 This utility model provides a technical solution: Example 1: A jack with a protective mechanism includes a jack body 1, a lifting lug 2, a return oil pipe 3, a support base plate 5, and a single-control hydraulic valve 6. The lifting lug 2 is fixedly connected to the upper side of the annular side of the jack body 1. The lifting lug 2 is connected to the jack body 1 by welding. The lifting lug 2 facilitates the lifting and transfer of the heavy jack body 1 by lifting equipment. The support base plate 5 is installed at the bottom of the jack body 1. The support base plate 5 can increase the support area at the bottom of the jack body 1, thereby improving the support stability of the jack body 1. The single-control hydraulic valve 6 is set on the front side of the annular side of the jack body 1. The single-control hydraulic valve 6 is connected to an external hydraulic station next to it through a high-pressure hose. The return oil pipe 3 is connected to the upper end of the single-control hydraulic valve 6. The single-control hydraulic valve 6 facilitates the external hydraulic station to control the extension and retraction of the upper end of the jack body 1. Since the detailed internal structure and working principle of the jack body 1 are relatively mature technologies in the prior art, they will not be described in detail here.

[0018] The front end of the jack body 1 is provided with a protective component 4, which is used to protect the single-control hydraulic valve 6 from impact and prevent the single-control hydraulic valve 6 from being directly damaged by external impact during use. The bottom of the jack body 1 is provided with a limit component 7, which is used to improve the connection stability between the jack body 1 and the support base plate 5.

[0019] The protective component 4 includes a mounting base 42, a protective bend rod 43, a reinforcing rod 44, an auxiliary support plate 45, and a limiting cavity 47. A limiting cavity 47 is formed on the front side of the upper end of the support base plate 5. The limiting cavity 47 matches the mounting base 42. The depth of the limiting cavity 47 is two-thirds of the thickness of the mounting base 42. The limiting cavity 47 can limit the mounting base 42 to prevent the mounting base 42 from shifting or shaking during use. The mounting base 42 is installed inside the limiting cavity 47. The mounting base 42 is connected to the protective bend rod 43 by welding. The mounting base 42 can support multiple protective bend rods 43.

[0020] Multiple protective curved rods 43 are connected to the upper surface of the mounting base 42. The protective curved rods 43 are L-shaped. Multiple reinforcing rods 44 are fixedly connected between the multiple protective curved rods 43. The reinforcing rods 44 are connected to the protective curved rods 43 by welding. The multiple reinforcing rods 44 and the L-shaped protective curved rods 43 can protect the single-control hydraulic valve 6 and prevent the single-control hydraulic valve 6 from being directly damaged by impact during use. An auxiliary support plate 45 is fixedly connected to the front side of the annular side of the jack body 1. The auxiliary support plate 45 is arc-shaped and can support and limit the rear end of the multiple protective curved rods 43 to prevent the rear end of the protective curved rods 43 from bending downward when impacted.

[0021] The mounting base 42 has a mounting through hole 46 inside, which matches the mounting screw 41. The mounting through hole 46 facilitates the insertion of the mounting screw 41 inside the mounting base 42. The mounting screw 41 is inserted inside the mounting through hole 46. The bottom of the limiting cavity 47 has a fixing threaded hole 471, which is threadedly connected to the mounting screw 41. The threaded connection between the fixing threaded hole 471 and the mounting screw 41 can fix the mounting base 42 inside the limiting cavity 47 and also facilitate the disassembly of the mounting base 42 by the user later. The mounting screw 41 is a high-strength screw to prevent breakage during use under stress.

[0022] Example 2: Based on Embodiment 1, in this embodiment, the fixed limiting ring 71 can prevent the bottom of the jack body 1 from shifting or shaking during use, while the locking screw 72 installed and fixed in the internal threaded through hole 73 can assist in fixing the bottom of the jack body 1, thereby further improving the connection stability between the jack body 1 and the support base plate 5.

[0023] The limiting component 7 includes a limiting ring 71, a locking screw 72, and an internal threaded through hole 73. The limiting ring 71 is fixedly connected to the upper end face of the supporting base plate 5. The limiting ring 71 matches the bottom of the jack body 1. The limiting ring 71 and the supporting base plate 5 are an integral structure. The limiting ring 71 can limit the bottom of the jack body 1 to prevent the bottom of the jack body 1 from shifting or shaking during use. The limiting ring 71 has symmetrical internal threaded through holes 73 on the left and right sides of its annular side. The internal threaded through hole 73 is threaded with a locking screw 72. The internal threaded through hole 73 and the locking screw 72 can assist in fixing the bottom of the jack body 1 placed inside the limiting ring 71, thereby further improving the connection stability between the jack body 1 and the supporting base plate 5.

[0024] Working principle: During the use of the jack body 1, the mounting base 42 installed in the limiting cavity 47 can support and fix multiple protective bends 43, so that the multiple protective bends 43 and the reinforcing rod 44 can protect the single-control hydraulic valve 6 from impact, preventing the single-control hydraulic valve 6 from being directly impacted during use and thus deformed or damaged. By fixing and connecting the auxiliary support plate 45, the rear ends of the multiple protective bends 43 can be supported and limited, preventing the rear ends of the protective bends 43 from bending downward and touching the single-control hydraulic valve 6 when impacted. In the later use, the user only needs to use an external wrench to loosen and disassemble the multiple mounting screws 41 to disassemble the mounting base 42, protective bends 43 and reinforcing rod 44 as a whole, which not only makes it convenient for the user to replace it, but also makes it convenient for the user to inspect and maintain the single-control hydraulic valve 6. The fixed limiting ring 71 can limit the bottom of the jack body 1 to prevent the bottom of the jack body 1 from shifting or shaking during use. The locking screw 72 installed and fixed in the internal threaded through hole 73 can further fix the bottom of the jack body 1, thereby further improving the connection stability between the jack body 1 and the support base plate 5 and preventing the jack body 1 from separating from the support base plate 5 during use.

[0025] It should be noted that the circuits, electronic components, and driving devices involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve improvements to the software and methods. At the same time, the power connection methods of each electrical device are existing mature technologies, which are well known to those skilled in the art, and will not be elaborated upon here.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jack with a protective mechanism, comprising a jack body (1), a lifting lug (2), a return oil pipe (3), a support base plate (5), and a single-control hydraulic valve (6), characterized in that: The upper side of the annular side of the jack body (1) is fixedly connected with a lifting lug (2), the bottom of the jack body (1) is equipped with a support base plate (5), a single-control hydraulic valve (6) is provided on the front side of the annular side of the jack body (1), and the upper end of the single-control hydraulic valve (6) is connected with a return oil pipe (3). The front end of the jack body (1) is provided with a protective component (4), which is used to protect the single-control hydraulic valve (6) from impact. The bottom of the jack body (1) is provided with a limiting component (7), which is used to improve the connection stability between the jack body (1) and the support base plate (5).

2. A jack with a protective mechanism according to claim 1, characterized in that: The protective component (4) includes a mounting base (42), a shielding bend (43), a reinforcing rod (44), an auxiliary support plate (45), and a limiting cavity (47). A limiting cavity (47) is opened on the front side of the upper end of the support base plate (5). The mounting base (42) is installed inside the limiting cavity (47). Multiple shielding bends (43) are connected to the upper end of the mounting base (42). Multiple reinforcing rods (44) are fixedly connected between the multiple shielding bends (43). An auxiliary support plate (45) is fixedly connected to the front side of the annular side of the jack body (1).

3. A jack with a protective mechanism according to claim 2, characterized in that: The mounting base (42) has an internal mounting through hole (46), and a mounting screw (41) is inserted inside the mounting through hole (46). The bottom of the limiting cavity (47) has a fixing threaded hole (471), and the fixing threaded hole (471) is threadedly connected to the mounting screw (41).

4. A jack with a protective mechanism according to claim 1, characterized in that: The limiting component (7) includes a limiting ring (71), a locking screw (72) and an internal thread through hole (73). The limiting ring (71) is fixedly connected to the upper end face of the supporting base plate (5). The limiting ring (71) has internal thread through holes (73) symmetrically opened on the left and right sides of the annular side. The locking screw (72) is installed inside the internal thread through hole (73).

5. A jack with a protective mechanism according to claim 2, characterized in that: The limiting cavity (47) matches the mounting base (42), and the depth of the limiting cavity (47) is two-thirds of the thickness of the mounting base (42).

6. A jack with a protective mechanism according to claim 2, characterized in that: The protective curved rod (43) is L-shaped, and the auxiliary support plate (45) is arc-shaped.

7. A jack with a protective mechanism according to claim 4, characterized in that: The limiting ring (71) matches the bottom of the jack body (1), and the limiting ring (71) and the supporting base plate (5) are an integral structure.

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