Hydraulic tool with adjustable limiting structure

Abstract

The utility model discloses a hydraulic tool with an adjustable limiting structure, which comprises a cylinder body, and a movable groove is arranged in the cylinder body. Control blocks in two limiting blocks are pressed downwards, the control blocks push abutting blocks to move downwards in adjusting grooves under the action of pressure, abutting springs in two direction grooves recover elastic deformation in the moving process of moving blocks, and fixing bolts are pushed to move in fixing through holes. The fixing bolt is retreated from the clamping groove under the action of thrust, at the moment, after the movable sleeve is pushed to slide on the cylinder body and move to the needed position, the two control blocks are loosened, the reset spring restores elastic deformation and pushes the abutting block to reset, and then the cylinder body is fixed. And the abutting block pushes the fixing bolt into the clamping groove again to be fixed under the action of the guiding inclined face in the moving process, rapid adjustment of the limiting block is achieved, the structure is simple, adjustment is smooth, and the use feeling of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic tools, and specifically relates to a hydraulic tool with an adjustable limit structure. Background Art

[0002] A hydraulic tool is an integrated combination of a hydraulic system and an ordinary tool, which uses a liquid medium to transfer energy and perform work. It transfers energy from a pump to an actuator through the pressure difference generated by the liquid between the pump body and the actuator, thereby driving the actuator to complete the work. Hydraulic tools have the advantages of high efficiency and convenience and are widely used in many fields such as machining, construction, and automobile maintenance.

[0003] In the prior art, as disclosed in Chinese Patent No. 12118893U, "A hydraulic tool with an adjustable limit device", it includes a cylinder body, a pushing device is movably arranged in the cylinder body, a limiting member for restricting the movement of the pushing device is slidably arranged in the cylinder body, and a movable fixing member is installed in the limiting member.

[0004] Although the above-mentioned utility model can change the moving stroke of the pushing device by adjusting the position of the limiting member, so as to be applicable to the crimping of pipe fittings of different sizes, after the ball slidably arranged in the through hole of the limiting member is released from the restriction, it is difficult to automatically enter the through hole and requires the user to push the movable sleeve to enter the through hole, which makes it easy for the user to have a jamming situation when adjusting the limiting member, making the adjustment inconvenient. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a hydraulic tool with an adjustable limit structure to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A hydraulic tool with an adjustable limit structure, an activity sleeve is sleeved on the outer surface of the cylinder body, two limiting blocks are fixedly connected to the inner surface of the activity sleeve, the outer surfaces of the two limiting blocks are slidably connected to the inside of the discharge port, an adjustment groove is opened inside the limiting block, a pressing block is slidably connected to the inside of the adjustment groove, square grooves are opened on both side walls inside the adjustment groove, fixing through holes are penetrated and opened at the positions of the two limiting blocks on both sides and corresponding to the square grooves, fixing bolts are slidably connected to the inside of the two fixing through holes, two pressing springs are fixedly connected to the outer surfaces of the two fixing bolts, the other ends of the four pressing springs are respectively fixedly connected to the inner surfaces of the two square grooves, a plurality of clamping grooves are opened on the inner surface of the discharge port, and one end of the fixing bolt is clamped inside any clamping groove on the same side.

[0007] As a further preference of the present technical solution, a reset spring is fixedly connected to the inner bottom surface of the adjustment groove, and the other end of the reset spring is fixedly connected to the inner top surface of the pressing block.

[0008] As a further preference of the present technical solution, a control block is fixedly connected to the top end of the pressing block, and the top end of the control block penetrates through the inner surface of the movable sleeve to the outside.

[0009] As a further preference of the present technical solution, guiding inclined surfaces are provided at the top end of the pressing block and at the positions of both side edges. Abutting grooves are provided on the outer surfaces of the two limiting blocks, and the outer surfaces of the two abutting grooves are in close contact with the outer surfaces of the two runners respectively.

[0010] As a further preference of the present technical solution, limiting grooves are provided on both inner side walls of the movable groove, a limiting rod is slidably connected between the two limiting grooves, a fixing block is fixedly connected to the outer surface of the cylinder body, and one end of the fixing block penetrates through the outer surface of the cylinder body and is inserted into one end of the limiting rod.

[0011] As a further preference of the present technical solution, a docking screw sleeve is fixedly connected to the outer surface of the cylinder body at one end, an oil cylinder is fixedly connected inside the docking screw sleeve, and the telescopic end of the oil cylinder is fixedly connected to one side of the pushing block.

[0012] The present utility model provides a hydraulic tool with an adjustable limiting structure, having the following beneficial effects:

[0013] In the present utility model, by pressing down the control blocks in the two limiting blocks, the control blocks push the pressing block to move downward in the adjustment groove under the action of pressure. During the movement of the moving block, the pressing springs in the two direction grooves recover their elastic deformation and push the fixing bolts to move in the fixing through holes, so that the fixing bolts are withdrawn from the card slots under the action of the thrust. At this time, the movable sleeve is pushed to slide on the cylinder body and move to the required position, and then the two control blocks are released. The reset spring recovers its elastic deformation and pushes the pressing block to reset. During the movement of the pressing block, the fixing bolts are pushed into the card slots again for fixing under the action of the guiding inclined surfaces, realizing the rapid adjustment of the limiting blocks. The structure is simple, the adjustment is smooth, and the use experience of the user is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the structure of the present utility model after removing the movable sleeve;

[0016] Figure 3 is an exploded schematic diagram of the internal structure of the limiting block of the present utility model;

[0017] Figure 4 This is a schematic diagram of the position change of the pressing block during the adjustment of the limit block of the present utility model.

[0018] In the figure: 1, cylinder block; 2, movable groove; 3, feeding port; 4, pushing block; 5, positioning seat; 6, runner; 7, movable sleeve; 8, limit block; 9, adjustment groove; 10, control block; 11, square groove; 12, fixed through hole; 13, fixing bolt; 14, pressing spring; 15, pressing block; 16, return spring; 17, guiding inclined surface; 18, abutting groove; 19, clamping groove; 20, oil cylinder; 21, limit groove; 22, limit rod; 23, fixed block; 24, docking sleeve. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0020] The present utility model provides a technical solution: As Figures 1-4 shown, in this embodiment, a hydraulic tool with an adjustable limit structure includes a cylinder block 1. An internal movable groove 2 is provided inside the cylinder block 1. A feeding port 3 is penetrated and provided on the outer surface of the cylinder block 1. A pushing block 4 is slidably connected inside the movable groove 2. One side of the pushing block 4 is fixedly connected with a positioning seat 5. Two runners 6 are rotatably connected inside the positioning seat 5. A movable sleeve 7 is sleeved on the outer surface of the cylinder block 1. Two limit blocks 8 are fixedly connected to the inner surface of the movable sleeve 7. The outer surfaces of the two limit blocks 8 are slidably connected with the inside of the feeding port 3. An adjustment groove 9 is provided inside the limit block 8. A pressing block 15 is slidably connected inside the adjustment groove 9. Square grooves 11 are provided on both inner side walls of the adjustment groove 9. Fixing through holes 12 are penetrated and provided on both sides of the limit block 8 and at the positions of the square grooves 11. Two fixing bolts 13 are slidably connected inside the two fixing through holes 12. Two pressing springs 14 are fixedly connected to the outer surfaces of the two fixing bolts 13. The other ends of the four pressing springs 14 are respectively fixedly connected to the inner surfaces of the two square grooves 11. A plurality of clamping grooves 19 are provided on the inner surface of the feeding port 3. One end of the fixing bolt 13 is clamped inside any clamping groove 19 on the same side. Among them, by providing the pressing spring 14, a continuous force can be applied to the fixing bolt 13. When the fixing bolt 13 loses the restriction of the pressing block 15, it can automatically contract, which can effectively prevent jamming.

[0021] As Figure 3 and Figure 4 shown, a return spring 16 is fixedly connected to the inner bottom surface of the adjustment groove 9. The other end of the return spring 16 is fixedly connected to the inner top surface of the pressing block 15, which can reset the pressing block 15, achieve the effect of automatic fixation, and improve the convenience of adjustment.

[0022] As Figure 3As shown, a control block 10 is fixedly connected to the top end of the pressing block 15. The top end of the control block 10 penetrates through the inner surface of the movable sleeve 7 to the outside, and can control the up and down movement of the pressing block 15.

[0023] As Figure 3 and Figure 4 As shown, guide slopes 17 are provided at the top end of the pressing block 15 and at the positions of both side edges. Resting grooves 18 are provided on the outer surfaces of the two limiting blocks 8. The outer surfaces of the two resting grooves 18 are in close contact with the outer surfaces of the two runner wheels 6 respectively. Among them, by providing the guide slopes 17, the fixing bolts 13 can be guided to prevent jamming and improve the smoothness of adjustment.

[0024] As Figure 1 and Figure 2 As shown, limiting grooves 21 are provided on the inner side walls of both sides of the movable groove 2. A limiting rod 22 is slidably connected between the two limiting grooves 21. A fixing block 23 is fixedly connected to the outer surface of the cylinder block 1. One end of the fixing block 23 penetrates through the outer surface of the cylinder block 1 and is inserted into one end of the limiting rod 22. Among them, by providing the limiting rod 22, the pipe fitting can be positioned to avoid shaking during the crimping process.

[0025] As Figure 1 and Figure 2 As shown, a docking screw sleeve 24 is fixedly connected to the outer surface of the cylinder block 1 at one end position. An oil cylinder 20 is fixedly connected inside the docking screw sleeve 24. The telescopic end of the oil cylinder 20 is fixedly connected to one side of the pushing block 4. Among them, by providing the docking screw sleeve 24, disassembly can be facilitated.

[0026] The present utility model provides a hydraulic tool with an adjustable limiting structure, and the specific working principle is as follows:

[0027] When it is necessary to crimp a smaller pipe fitting, the user presses down the control block 10 in the two limiting blocks 8. Under the action of the pressure, the control block 10 pushes the pressing block 15 to move downward in the adjustment groove 9. During the movement of the pressing block 15, the pressing springs 14 in the two square grooves 11 recover their elastic deformation and push the fixing bolts 13 to move in the fixing through holes 12, so that the fixing bolts 13 are withdrawn from the clamping grooves 19 under the action of the thrust. At this time, the movable sleeve 7 is pushed to slide on the cylinder block 1 and move to the required position, and then the two control blocks 10 are released. The return spring 16 recovers its elastic deformation and pushes the pressing block 15 to reset. During the movement of the pressing block 15, the fixing bolts 13 are pushed into the clamping grooves 19 again for fixing under the action of the guide slopes 17.

[0028] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic tool with an adjustable limit structure, comprising a cylinder block (1), characterized in that: An activity groove (2) is formed inside the cylinder block (1), a feeding port (3) is formed through the outer surface of the cylinder block (1), a pushing block (4) is slidably connected inside the activity groove (2), a positioning seat (5) is fixedly connected to one side of the pushing block (4), two rotating wheels (6) are rotatably connected inside the positioning seat (5), an activity sleeve (7) is sleeved on the outer surface of the cylinder block (1), two limiting blocks (8) are fixedly connected to the inner surface of the activity sleeve (7), the outer surfaces of the two limiting blocks (8) are slidably connected inside the feeding port (3), an adjusting groove (9) is formed inside the limiting block (8), a pressing block (15) is slidably connected inside the adjusting groove (9), square grooves (11) are formed on both side walls inside the adjusting groove (9), fixing through holes (12) are formed through the two sides of the limiting block (8) at the positions of the square grooves (11), fixing bolts (13) are slidably connected inside the two fixing through holes (12), two pressing springs (14) are fixedly connected to the outer surfaces of the two fixing bolts (13), and the other ends of the four pressing springs (14) are respectively fixedly connected to the inner surfaces of the two square grooves (11). A plurality of clamping grooves (19) are formed on the inner surface of the feeding port (3), and one end of the fixing bolt (13) is clamped inside any clamping groove (19) on the same side.

2. The hydraulic tool with an adjustable limit structure according to claim 1, characterized in that: A reset spring (16) is fixedly connected to the bottom surface inside the adjusting groove (9), and the other end of the reset spring (16) is fixedly connected to the top surface inside the pressing block (15).

3. The hydraulic tool with an adjustable limit structure according to claim 2, characterized in that: A control block (10) is fixedly connected to the top end of the pressing block (15), and the top end of the control block (10) penetrates through the inner surface of the activity sleeve (7) to the outside.

4. A hydraulic tool with an adjustable limit structure according to claim 3, characterized in that: Guide inclined surfaces (17) are formed at the top end of the pressing block (15) and at the positions of the two side edges, and abutting grooves (18) are formed on the outer surfaces of the two limiting blocks (8), and the outer surfaces of the two abutting grooves (18) are respectively in close contact with the outer surfaces of the two rotating wheels (6).

5. A hydraulic tool with an adjustable limit structure according to claim 1, characterized in that: Limiting grooves (21) are formed on both side walls inside the activity groove (2), a limiting rod (22) is slidably connected between the two limiting grooves (21), a fixing block (23) is fixedly connected to the outer surface of the cylinder block (1), and one end of the fixing block (23) penetrates through the outer surface of the cylinder block (1) and is inserted into one end of the limiting rod (22).

6. A hydraulic tool with an adjustable limit structure according to claim 1, characterized in that: A docking screw sleeve (24) is fixedly connected to one end position of the outer surface of the cylinder block (1), an oil cylinder (20) is fixedly connected inside the docking screw sleeve (24), and the telescopic end of the oil cylinder (20) is fixedly connected to one side of the pushing block (4).

Images