Multifunctional hydraulic wrench

Abstract

The utility model belongs to the field of hydraulic wrenches, and particularly relates to a multifunctional hydraulic wrench which comprises a wrench body, a sleeve is arranged on the left side of the bottom of the wrench body, the top of the sleeve extends to an inner cavity of the wrench body, a fixing frame is fixedly connected to the left side of the top of the wrench body, and a pressing plate is arranged on the top of the fixing frame. The bottom of the pressing plate is fixedly connected with a pressing rod, and the surface of the pressing rod is sleeved with a spring. By arranging the limiting assembly, after a connecting pipe of an external hydraulic pump is connected with the connector, the connecting pipe can be limited, the stability of the connecting pipe is improved, the connecting pipe of the external hydraulic pump is prevented from falling off, the use safety of the hydraulic wrench is improved, and by arranging the supporting assembly, the whole hydraulic wrench can be supported in an auxiliary mode; the stability of the hydraulic wrench in use is improved, the phenomenon that the hydraulic wrench is unstable in use is avoided, and therefore the safety of the hydraulic wrench in use is improved.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic wrenches, in particular to a multifunctional hydraulic wrench. Background Art

[0002] Hydraulic wrench is the abbreviation of hydraulic torque wrench. It is a professional bolt tightening tool that uses hydraulic power to provide large torque output and is used for the installation and removal of bolts. It is often used to tighten and loosen bolts larger than one inch. The hydraulic wrench is composed of a working head, a hydraulic pump and a high-pressure oil pipe. Through the high-pressure oil pipe, the hydraulic pump transmits power to the working head, driving the working head to rotate and tighten or loosen the nut.

[0003] The existing hydraulic wrenches have relatively simple functions. First, there is no function to limit the hydraulic pump connecting pipe. If the connecting pipe falls off during the operation of the hydraulic wrench, it will bring safety hazards. Second, there is no auxiliary support function. In some cases, when using the hydraulic wrench, the sleeve is placed on the surface of the part, and the entire hydraulic wrench is in a suspended state, which is easy to affect the stability of the hydraulic wrench during operation. In severe cases, it may fall off, which will also bring safety hazards. Third, there is no structure for auxiliary sleeve disassembly. Manual direct operation of the sleeve is prone to hand slippage, which is not conducive to sleeve replacement. Therefore, a multifunctional hydraulic wrench is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art and solve the problem that the hydraulic wrench in the prior art has a relatively single function, the utility model provides a multifunctional hydraulic wrench.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a multifunctional hydraulic wrench, comprising a wrench body, a sleeve is arranged on the left side of the bottom of the wrench body, the top of the sleeve extends to the inner cavity of the wrench body, a fixing frame is fixedly connected to the left side of the top of the wrench body, a pressure plate is arranged on the top of the fixing frame, a pressure rod is fixedly connected to the bottom of the pressure plate, a spring is sleeved on the surface of the pressure rod, the bottom of the pressure rod passes through the fixing frame and is fixedly connected to a push plate, a connector is connected to the right side of the wrench body, a limit assembly is arranged on the front and rear sides of the connector, and a support assembly is arranged on the top of the wrench body;

[0006] The limit assembly includes a fixed block, and the opposite sides of the two fixed blocks are fixedly connected to the wrench body. A mounting block is provided on the right side of the fixed block, and a connecting block is fixedly connected between the left side of the mounting block and the fixed block. Knobs are provided on the opposite sides of the two mounting blocks, and the opposite sides of the two knobs are fixedly connected to a first screw rod, and the opposite ends of the two first screw rods penetrate the mounting block and are movably connected to a clamping block.

[0007] Preferably, the top and bottom of the clamping block are fixedly connected with sliding blocks, the surface of the sliding block is sleeved with a sliding shell, and the surface of the sliding shell is fixedly connected to the mounting block.

[0008] Preferably, the surface of the first screw rod is movably connected to the clamping block via a first bearing, and a threaded hole used in conjunction with the first screw rod is provided on the surface of the mounting block.

[0009] Preferably, the supporting assembly includes a second screw rod, the bottom of the second screw rod is movably connected to the wrench body via a second bearing, the top of the second screw rod is fixedly connected to a handwheel, the surface of the second screw rod is threadedly connected to a screw sleeve, the front and rear sides of the screw sleeve are fixedly connected to a lifting frame, the bottom of the lifting frame is fixedly connected to a support rod, and the bottom of the support rod is fixedly connected to a support plate.

[0010] Preferably, a limiting sleeve is provided on the surface of the lifting frame, and opposite sides of two limiting sleeves are fixedly connected to the wrench body.

[0011] Preferably, the top and bottom of the spring are fixedly connected to the pressure plate and the fixing frame respectively, and the fixing frame is L-shaped.

[0012] Preferably, the number of the connecting blocks is four, and the surface of the knob is provided with anti-slip grooves.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model sets a limit assembly, which can limit the connection pipe of the external hydraulic pump after it is connected to the connector, thereby improving its stability, preventing the connection pipe of the external hydraulic pump from falling off, and improving the safety of the hydraulic wrench;

[0015] 2. The utility model can provide auxiliary support for the entire hydraulic wrench by setting a support component, thereby improving the stability of the hydraulic wrench during use, avoiding the hydraulic wrench from becoming unstable during use, and thus improving the safety of the hydraulic wrench during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the multifunctional hydraulic wrench of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the wrench body of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the support assembly of the utility model;

[0020] Figure 4 It is a right side view of the limiting assembly of the utility model.

[0021] In the figure: 1. wrench body; 2. sleeve; 3. fixing frame; 4. pressure plate; 5. pressure rod; 6. spring; 7. push plate; 8. connector; 9. limit assembly; 901. fixing block; 902. mounting block; 903. connecting block; 904. knob; 905. first screw rod; 906. clamping block; 907. slider; 908. sliding shell; 10. support assembly; 1001. second screw rod; 1002. hand wheel; 1003. screw sleeve; 1004. lifting frame; 1005. support rod; 1006. support plate; 1007. limit sleeve. DETAILED DESCRIPTION

[0022] 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.

[0023] The following is combined with Figure 1-4 To further explain this application in detail,

[0024] The present application embodiment discloses a multifunctional hydraulic wrench. Figure 1 , Figure 2 , Figure 3 and Figure 4 A multifunctional hydraulic wrench comprises a wrench body 1, a sleeve 2 is arranged on the left side of the bottom of the wrench body 1, the top of the sleeve 2 extends to the inner cavity of the wrench body 1, a fixing frame 3 is fixedly connected to the left side of the top of the wrench body 1, a pressing plate 4 is arranged on the top of the fixing frame 3, a pressing rod 5 is fixedly connected to the bottom of the pressing plate 4, a spring 6 is sleeved on the surface of the pressing rod 5, the bottom of the pressing rod 5 passes through the fixing frame 3 and is fixedly connected to a push plate 7, a connector 8 is connected to the right side of the wrench body 1, and a limit assembly 9 is arranged on the front and rear sides of the connector 8, and a support assembly 10 is arranged on the top of the wrench body 1;

[0025] The limiting assembly 9 includes a fixing block 901, and opposite sides of the two fixing blocks 901 are fixedly connected to the wrench body 1. A mounting block 902 is arranged on the right side of the fixing block 901, and a connecting block 903 is fixedly connected between the left side of the mounting block 902 and the fixing block 901. A knob 904 is arranged on the opposite side of the two mounting blocks 902, and the opposite sides of the two knobs 904 are fixedly connected to a first screw rod 905, and the opposite ends of the two first screw rods 905 penetrate the mounting block 902 and are movably connected to a clamping block 906. By setting the limiting assembly 9, after the connecting pipe of the external hydraulic pump is connected to the connecting head 8, it can be limited to improve its stability, avoid the connection pipe of the external hydraulic pump from falling off, and improve the safety of the use of the hydraulic wrench. By setting the supporting assembly 10, the entire hydraulic wrench can be provided with an auxiliary support function, the stability of the hydraulic wrench during use can be improved, and the instability of the hydraulic wrench during use can be avoided, thereby improving the safety of the hydraulic wrench during use.

[0026] Reference Figure 4 The top and bottom of the clamp block 906 are fixedly connected with a slider 907, the surface of the slider 907 is covered with a sliding shell 908, and the surface of the sliding shell 908 is fixedly connected to the mounting block 902; by setting the sliding shell 908, the moving range of the slider 907 can be limited, and by setting the sliding shell 908 and the slider 907, the stability of the movement of the clamp block 906 can be limited.

[0027] Reference Figure 4 The surface of the first screw 905 is movably connected to the clamping block 906 through the first bearing, and the surface of the mounting block 902 is provided with a threaded hole for use with the first screw 905; by providing the first bearing, the rotation of the first screw 905 can be facilitated, and by providing the threaded hole, the coordination of the first screw 905 and the mounting block 902 can be facilitated.

[0028] Reference Figure 1 and Figure 3 The support assembly 10 includes a second screw rod 1001, the bottom of the second screw rod 1001 is movably connected to the wrench body 1 through a second bearing, the top of the second screw rod 1001 is fixedly connected with a hand wheel 1002, the surface of the second screw rod 1001 is threadedly connected with a screw sleeve 1003, the front and rear sides of the screw sleeve 1003 are fixedly connected with a lifting frame 1004, the bottom of the lifting frame 1004 is fixedly connected with a support rod 1005, and the bottom of the support rod 1005 is fixedly connected with a support plate 1006; the second screw rod 1001 can be rotated by the cooperation of the hand wheel 1002, and the rotation of the second screw rod 1001 can drive the screw sleeve 1003 to move downward, and the screw sleeve 1003 can drive the support plate 1006 to move downward close to the ground through the cooperation of the lifting frame 1004 and the support rod 1005 until it is close to the ground, thereby improving the stability of the entire hydraulic wrench.

[0029] Reference Figure 3 The surface of the lifting frame 1004 is provided with a limiting sleeve 1007, and the opposite sides of the two limiting sleeves 1007 are fixedly connected to the wrench body 1; by providing the limiting sleeve 1007, the stability of the movement of the support rod 1005 can be improved and the movement range of the support rod 1005 can be limited.

[0030] Reference Figure 1 and Figure 2 The top and bottom of the spring 6 are fixedly connected to the pressure plate 4 and the fixing frame 3 respectively, and the shape of the fixing frame 3 is L-shaped; by setting the spring 6, it is convenient for the pressure plate 4 to move upward for resetting, and by setting the fixing frame 3, it can play a role in supporting the spring 6.

[0031] Reference Figure 4 The number of the connecting blocks 903 is four, and the surface of the knob 904 is provided with anti-skid grooves; by providing the connecting blocks 903, the fixing of the mounting block 902 can be facilitated, and by providing the anti-skid grooves, an anti-skid effect can be achieved.

[0032] Working principle: Connect the connecting pipe of the hydraulic pump with the connecting head 8, and rotate the first screw 905 through the cooperation of the knob 904. The rotation of the first screw 905 can drive the clamping block 906 to gradually approach the connecting pipe of the hydraulic pump until it is close to the connecting pipe of the hydraulic pump, and limit the connecting pipe of the hydraulic pump to improve the stability of the connection between the connecting pipe of the hydraulic pump and the connecting head 8, and avoid the connection head 8 and the connecting pipe of the hydraulic pump from separating when the wrench body 1 is working, thereby improving the safety of the wrench body 1 when using it. Then, put the sleeve 2 on the part, control the hydraulic pump to start, which can drive the sleeve 2 to rotate, and the sleeve 2 drives the part to rotate. At this time, the wrench body 1 is in a suspended state. The second screw 1001 can be rotated by the cooperation of the hand wheel 1002, and the rotation of the second screw 1001 can drive the screw sleeve 1003 to move downward. The screw sleeve 1003 can drive the support plate 1006 to move downward close to the ground until it is close to the ground through the cooperation of the lifting frame 1004 and the support rod 1005, thereby improving the stability of the entire hydraulic wrench and further improving the safety of the wrench body 1 when in use. When the wrench body 1 is used up, the pressure plate 4 can be pushed downward, and the pressure plate 4 drives the pressure rod 5 to move downward. The pressure rod 5 drives the push plate 7 to move downward to push the sleeve 2, which can assist in the disassembly of the sleeve 2 and facilitate the disassembly and replacement of the sleeve 2.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A multifunctional hydraulic wrench, characterized in that: The invention comprises a wrench body (1), wherein a sleeve (2) is arranged on the left side of the bottom of the wrench body (1), the top of the sleeve (2) extends to the inner cavity of the wrench body (1), the left side of the top of the wrench body (1) is fixedly connected to a fixing frame (3), the top of the fixing frame (3) is arranged with a pressure plate (4), the bottom of the pressure plate (4) is fixedly connected to a pressure rod (5), the surface of the pressure rod (5) is sleeved with a spring (6), the bottom of the pressure rod (5) passes through the fixing frame (3) and is fixedly connected to a push plate (7), the right side of the wrench body (1) is connected to a connecting head (8), the front and rear sides of the connecting head (8) are both provided with limit assemblies (9), and the top of the wrench body (1) is provided with a supporting assembly (10); The limit assembly (9) comprises a fixed block (901), the opposite sides of the two fixed blocks (901) are fixedly connected to the wrench body (1), a mounting block (902) is arranged on the right side of the fixed block (901), a connecting block (903) is fixedly connected between the left side of the mounting block (902) and the fixed block (901), a knob (904) is arranged on the opposite sides of the two mounting blocks (902), the opposite sides of the two knobs (904) are fixedly connected to a first screw rod (905), and the opposite ends of the two first screw rods (905) penetrate the mounting block (902) and are movably connected to a clamping block (906).

2. A multifunctional hydraulic wrench according to claim 1, characterized in that: The top and bottom of the clamping block (906) are both fixedly connected to a sliding block (907), the surface of the sliding block (907) is sleeved with a sliding shell (908), and the surface of the sliding shell (908) is fixedly connected to the mounting block (902).

3. A multifunctional hydraulic wrench according to claim 2, characterized in that: The surface of the first screw rod (905) is movably connected to the clamping block (906) via a first bearing, and a threaded hole for use with the first screw rod (905) is provided on the surface of the mounting block (902).

4. A multifunctional hydraulic wrench according to claim 1, characterized in that: The support assembly (10) comprises a second screw rod (1001), the bottom of the second screw rod (1001) is movably connected to the wrench body (1) via a second bearing, the top of the second screw rod (1001) is fixedly connected to a hand wheel (1002), the surface of the second screw rod (1001) is threadedly connected to a threaded sleeve (1003), the front and rear sides of the threaded sleeve (1003) are fixedly connected to a lifting frame (1004), the bottom of the lifting frame (1004) is fixedly connected to a support rod (1005), and the bottom of the support rod (1005) is fixedly connected to a support plate (1006).

5. A multifunctional hydraulic wrench according to claim 4, characterized in that: The surface of the lifting frame (1004) is provided with a limiting sleeve (1007), and opposite sides of the two limiting sleeves (1007) are fixedly connected to the wrench body (1).

6. A multifunctional hydraulic wrench according to claim 1, characterized in that: The top and bottom of the spring (6) are fixedly connected to the pressure plate (4) and the fixing frame (3) respectively, and the fixing frame (3) is L-shaped.

7. A multifunctional hydraulic wrench according to claim 1, characterized in that: The number of the connecting blocks (903) is four, and the surface of the knob (904) is provided with anti-slip grooves.

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