Hydraulic clamp
By installing a connecting pipe in the hydraulic clamp, air from inside the housing is introduced into the cutter head, enabling automatic removal of impurities at the material fracture point. This solves the problem of difficult impurity removal in existing technologies, improves measurement accuracy, and protects worker health.
Patent Information
- Application Number
- CN202423296541.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-28
AI Technical Summary
When existing hydraulic shears cut materials, it is difficult to automatically remove impurities around the fracture point, which affects measurement accuracy and poses a health hazard to workers.
Design a hydraulic clamp that automatically blows away impurities at the fracture point of the material by introducing air into the cutter head through a connecting pipe outside the housing.
It automatically removes impurities while cutting materials, improving measurement accuracy, protecting worker health, and preventing dust inhalation.
Smart Images
Figure CN223642868U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of hydraulic pliers, and particularly relates to a hydraulic plier. BACKGROUND
[0002] When the material is cut by the pliers, the surface of many materials has dust, impurities, oxide layers, corroded layers and the like, so that a lot of impurities are left around the fracture of the material during cutting, and workers need to use a brush to sweep away the dust, impurities, oxide layers and corroded layers left around the fracture of the material in general, so as to see the fracture of the material and measure whether the length of the cut material meets the expectation. Of course, some workers blow the dust and impurities left around the fracture of the material with their mouths after cutting the material, but they need to inhale air immediately after blowing, so that they inhale a large amount of air containing dust and impurities after blowing, which is harmful to health. CONTENT OF THE UTILITY MODEL
[0003] The application aims at the defects of the prior art, adopts a mode of arranging a connecting pipe outside a shell to guide the air released in the shell to a cutter head, and designs a hydraulic plier, so that the impurities around the fracture of the material can be automatically blown clean during cutting of the material, and the problem that the impurities around the fracture of the cut material cannot be automatically blown clean by the pliers at present is solved.
[0004] In order to achieve the above object, the application adopts the technical scheme of:
[0005] The hydraulic plier comprises a cylindrical shell, a liquid inlet is arranged at the left end of the shell, a piston is arranged in the shell in cooperation, a mounting rod parallel to the shell is arranged on the side of the piston away from the liquid inlet, the end of the mounting rod away from the piston extends out of the shell, a cutter head is fixedly connected to the mounting rod outside the shell, an end cover is arranged at the right end of the shell, a through hole matched with the mounting rod is arranged on the end cover, the inner circumferential surface of the through hole is in close sliding connection with the circumferential surface of the mounting rod, a support rod is fixedly arranged at the right end of the shell in the axial direction, a backing plate matched with the cutter head is arranged at the end of the support rod away from the shell, a spring is arranged on the mounting rod between the piston and the end cover, a gas hole is arranged on the side wall of the shell, the gas hole is in communication with the space formed between the end cover and the piston, the gas hole is close to the end cover, a connecting pipe is arranged on the outer side wall of the shell at the gas hole, and the end of the connecting pipe away from the gas hole faces the backing plate.
[0006] Preferably, a limiting block is arranged on the side of the end cover facing the piston, and the length of the projection of the limiting block on the axis of the mounting rod is greater than the distance between the gas hole and the end cover.
[0007] Preferably, a filter is arranged between the two ends of the connecting pipe.
[0008] Preferably, a valve group is arranged on the outer sidewall of the shell, the valve group comprising a first one-way valve and a second one-way valve, the first one-way valve having an air outlet direction towards the shell, the air outlet of the first one-way valve being in communication with the air hole, the second one-way valve having an air outlet direction towards the outside of the shell, the air inlet of the second one-way valve being in communication with the air hole.
[0009] Preferably, a filter is arranged at the air inlet of the first one-way valve.
[0010] Preferably, two support rods are arranged on the shell, the two support rods being symmetrically arranged with respect to the central axis of the shell, a gap being arranged between the two support rods, and the two ends of the two support rods away from the shell being fixedly connected to the base plate.
[0011] Preferably, a screw rod is arranged at the end of the mounting rod away from the piston, and a threaded blind hole is arranged at the root of the cutter head and cooperates with the screw rod.
[0012] Preferably, a countersunk threaded through hole is arranged on the cutter head and in communication with the threaded blind hole, and a countersunk locking bolt is inserted into the countersunk threaded through hole from the outside of the cutter head and abuts against the circumferential surface of the screw rod.
[0013] Compared with the prior art, the present application has the following beneficial effects:
[0014] The present application adopts a mode of arranging a connecting pipe outside the shell to guide the air released in the shell to the cutter head, and designs a hydraulic clamp, which can automatically blow away the impurities around the broken part of the material while cutting the material, thereby solving the problem that there is no clamp that can automatically blow away the impurities around the broken part of the material. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 is a structural schematic view of the present application;
[0016] Fig. 2 is a sectional view of the present application;
[0017] Fig. 3 is a principle diagram of the first one-way valve and the second one-way valve and the shell and the piston in the present application.
[0018] In the drawings: 1, shell; 2, liquid inlet; 3, piston; 4, mounting rod; 5, cutter head; 6, end cover; 7, support rod; 8, base plate; 9, spring; 10, connecting pipe; 11, air hole; 12, limiting block; 13, first one-way valve; 14, second one-way valve; 15, screw rod; 16, countersunk locking bolt. DETAILED DESCRIPTION
[0019] like Figs. 1-3 As shown, a hydraulic clamp includes a cylindrical housing 1. A fluid inlet 2 is located at the left end of the housing 1. A piston 3 is fitted inside the housing 1. A mounting rod 4, parallel to the housing 1, is located on the side of the piston 3 facing away from the fluid inlet 2. One end of the mounting rod 4 extends out of the housing 1. A cutting head 5 is fixedly connected to the mounting rod 4 outside the housing 1. An end cap 6 is located at the right end of the housing 1. The end cap 6 has a through hole that mates with the mounting rod 4. The inner circumferential surface of the through hole slides in a sealed manner with the circumferential surface of the mounting rod 4. Next, a support rod 7 is axially fixed at the right end of the housing 1. The end of the support rod 7 away from the housing 1 is provided with a pad 8 that cooperates with the cutter head 5. A spring 9 is provided on the mounting rod 4 between the piston 3 and the end cover 6. An air hole 11 is provided on the side wall of the housing 1. The air hole 11 communicates with the space formed between the end cover 6 and the piston 3. The air hole 11 is close to the end cover 6. A connecting pipe 10 is provided on the outer side wall of the housing 1 at the air hole 11. The end of the connecting pipe 10 facing away from the air hole 11 faces the pad 8.
[0020] In this embodiment, during use, the inlet 2 is connected to a liquid source and a pump (existing technology, not detailed) via a reversing valve. Liquid then flows into the housing 1, squeezing the piston 3, causing the piston 3 and mounting rod 4 to drive the cutter head 5 to move to the right. The cutter head 5 cooperates with the pad 8 to achieve a shearing action. During shearing, the material to be sheared is placed between the pad 8 and the cutter head 5. Then, under hydraulic pressure, the cutter head 5 moves towards the pad 8, thus cutting the material. After shearing, the liquid in the housing 1 located on the side of the piston 3 facing away from the mounting rod 4 is released from the inlet. Then, the mounting rod 4 and piston 3 move towards the inlet 2 under the action of a spring, thereby moving the cutter head 5 away from the pad 8. In this application, during the process of the cutter head 5 moving towards the pad 8, the air between the piston 3 and the end cap 6 in the housing 1 needs to be released. This air enters the connecting pipe 10 through the air hole 11 and is then blown towards the pad 8, thereby blowing away impurities from the sheared material. The vent 11 is positioned close to the end cap 6 to prevent liquid from leaking from the vent 11 as the piston 3 moves toward the pad 8.
[0021] As a preferred embodiment, a limiting block 12 is provided on the side of the end cap 6 facing the piston 3, and the length of the projection of the limiting block 12 on the axis of the mounting rod 4 is greater than the distance between the vent 11 and the end cap 6. By setting the limiting block 12 in this way, no liquid (hydraulic oil) leakage will occur no matter how the piston 3 moves within the housing 1 towards the end of the pad 8.
[0022] As a preferred embodiment, a filter is provided between the two ends of the connecting pipe 10. This filter design prevents dust from entering the housing 1 as the piston 3 moves toward the liquid inlet 2.
[0023] As a preferred method, such as Fig. 3 As shown, a valve assembly is provided on the outer wall of the housing 1. The valve assembly includes a first one-way valve 13 and a second one-way valve 14. The outlet of the first one-way valve 13 faces inward toward the housing 1, and its outlet is connected to the air hole 11. The outlet of the second one-way valve 14 faces outward toward the housing 1, and its inlet is connected to the air hole 11. With this configuration, the air inside the housing 1 located between the piston 3 and the end cap 6 passes through the second one-way valve 4 and is blown onto the gasket 8. During the process where the piston 3 moves toward the liquid inlet 2 and requires air to enter between the piston 2 and the end cap 6, the air enters from the first one-way valve 13. Therefore, it avoids the situation where dust on the gasket 8 is sucked back into the housing 1. Of course, the air inlet of the first one-way valve 13 is far away from the gasket 8.
[0024] As a preferred embodiment, a filter is provided at the air inlet of the first one-way valve 13. This filter prevents dust from entering the housing 1. The filter can be a filter screen, filter element, or similar material.
[0025] As a preferred embodiment, the housing 1 is provided with two support rods 7, which are symmetrically arranged about the central axis of the housing 1. A predetermined gap is set between the two support rods 7, and the ends of the two support rods 7 facing away from the housing 1 are jointly and fixedly connected to the pad 8. The support rods 7 are provided to fix the pad 8 to the housing 1, and the gap between the two support rods 7 is to facilitate the placement of the material to be cut onto the pad 8 for the cutter head 5 to cut.
[0026] As a preferred embodiment, the mounting rod 4 has a screw 15 at the end facing away from the piston 3, and the root of the cutter head 5 has a threaded blind hole that mates with the screw 15. This securely connects the cutter head 5 to the mounting rod 4 via the screw 15, facilitating the replacement of the cutter head 5.
[0027] As a preferred embodiment, the cutter head 5 is radially provided with a countersunk threaded through hole that connects to the threaded blind hole. The countersunk locking bolt 16 is inserted from outside the cutter head 5 into the countersunk threaded through hole and abuts against the circumferential surface of the screw 15. With this configuration, the cutter head 5 can be locked onto the mounting rod 4 by the countersunk locking bolt 16, preventing the cutter head 5 from falling off.
Claims
1. A hydraulic clamp, characterized in that, The system includes a cylindrical housing (1), with a liquid inlet (2) at the left end of the housing (1). A piston (3) is fitted inside the housing (1). A mounting rod (4) parallel to the housing (1) is provided on the side of the piston (3) facing away from the liquid inlet (2). The end of the mounting rod (4) facing away from the piston (3) extends out of the housing (1). A cutter head (5) is fixedly connected to the mounting rod (4) outside the housing (1). An end cap (6) is provided at the right end of the housing (1). The end cap (6) has a through hole that mates with the mounting rod (4). The inner circumferential surface of the through hole is in a sealed sliding connection with the circumferential surface of the mounting rod (4). A support rod (7) is axially fixed at the right end of the housing (1). The end of the support rod (7) away from the housing (1) is provided with a pad (8) that cooperates with the cutter head (5). A spring (9) is provided on the mounting rod (4) between the piston (3) and the end cap (6). An air hole (11) is provided on the side wall of the housing (1). The air hole (11) connects the space formed between the end cap (6) and the piston (3). The air hole (11) is close to the end cap (6). A connecting pipe (10) is provided on the outer side wall of the housing (1) at the air hole (11). The end of the connecting pipe (10) facing away from the air hole (11) faces the pad (8).
2. A hydraulic clamp according to claim 1, characterized in that, The end cap (6) has a limiting block (12) on the side facing the piston (3), and the length of the projection of the limiting block (12) on the axis of the mounting rod (4) is greater than the distance between the air hole (11) and the end cap (6).
3. A hydraulic clamp according to claim 1, characterized in that, A filter is provided between the two ends of the connecting pipe (10).
4. A hydraulic clamp according to claim 1, characterized in that, A valve assembly is provided on the outer wall of the housing (1). The valve assembly includes a first one-way valve (13) and a second one-way valve (14). The outlet of the first one-way valve (13) faces the inside of the housing (1), and the outlet of the first one-way valve (13) is connected to the air hole (11). The outlet of the second one-way valve (14) faces the outside of the housing (1), and the inlet of the second one-way valve (14) is connected to the air hole (11).
5. A hydraulic clamp according to claim 4, characterized in that, A filter is provided at the air inlet of the first one-way valve (13).
6. A hydraulic clamp according to claim 1, characterized in that, The housing (1) is provided with two support rods (7), which are symmetrically arranged about the central axis of the housing (1). There is a preset gap between the two support rods (7), and the ends of the two support rods (7) facing away from the housing (1) are fixedly connected to the pad (8).
7. A hydraulic clamp according to claim 6, characterized in that, The mounting rod (4) has a screw (15) at one end facing away from the piston (3), and the root of the cutter head (5) has a threaded blind hole that mates with the screw (15).
8. A hydraulic clamp according to claim 7, characterized in that, The cutter head (5) is radially provided with a countersunk threaded through hole that connects to the threaded blind hole. The countersunk locking bolt (16) is inserted from outside the cutter head (5) into the countersunk threaded through hole and abuts against the circumferential surface of the screw (15).