CN221003092U - Pump oil block of electric hydraulic tool - Google Patents
Pump oil block of electric hydraulic tool Download PDFInfo
- Publication number
- CN221003092U CN221003092U CN202322908318.7U CN202322908318U CN221003092U CN 221003092 U CN221003092 U CN 221003092U CN 202322908318 U CN202322908318 U CN 202322908318U CN 221003092 U CN221003092 U CN 221003092U
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- Prior art keywords
- oil
- hole
- oil outlet
- steel ball
- outlet
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a pump oil block of an electric hydraulic tool, and belongs to the technical field of hydraulic tools. It has solved the too big problem of play oil yield of current pump oil cake. This electric hydraulic tool's pump oil block, including being massive main part, have inlet port, oil outlet and plunger hole in the main part, inlet port and plunger hole all with the oil outlet is linked together, and inlet port department is provided with the check valve, and pump oil block still includes steel ball and locating part, the steel ball set up in the oil outlet and the steel ball compare in the inlet port is closer to the export of oil outlet, the diameter of steel ball slightly is less than the aperture of oil outlet, still offered the spacing hole in the main part, the spacing hole intercommunication extremely the lateral wall of oil outlet, the locating part is fixed in the spacing downthehole and the inner of locating part stretches into of main part in the oil outlet, the steel ball to can with the locating part offsets when the outlet direction of oil outlet removes. The oil pumping block of the electric hydraulic tool can stabilize the oil output.
Description
Technical Field
The utility model belongs to the technical field of hydraulic tools, and relates to a pump oil block of an electric hydraulic tool.
Background
The electric hydraulic tool comprises an electric hydraulic wire pressing clamp, an electric hydraulic shearing and expanding clamp, an electric hydraulic crimping clamp and the like. The electric hydraulic tool generally comprises a motor, an oil storage cavity, a hydraulic pump, a hydraulic cylinder, a switch assembly, a control valve and the like, wherein a return spring and a piston are arranged in the hydraulic cylinder, and the outer end of the piston is fixedly connected with a working end. The pump oil block is connected between the oil storage cavity and the hydraulic cylinder, and oil in the oil storage cavity is sent to the hydraulic cylinder through an oil way in the pump oil block by the reciprocating movement of the plunger penetrating through the pump oil block, so that the operation of a working end is realized.
However, in the existing oil pumping block, an oil way is completely conducted, when the pumping oil pressure is large, the oil output is large, the oil liquid sending-out speed is high, the shaking of a tool is easy to cause, and even the damage of parts is caused.
Disclosure of utility model
The utility model aims to solve the problems in the prior art, and provides an oil pumping block of an electric hydraulic tool, which solves the problem that the oil output of the existing oil pumping block is too large.
The aim of the utility model can be achieved by the following technical scheme:
The utility model provides an electric hydraulic tool's pump oil piece, is including being massive main part, have inlet port, oil outlet and plunger hole in the main part, inlet port and plunger hole all with the oil outlet is linked together, inlet port department is provided with the check valve, its characterized in that, pump oil piece still includes steel ball and locating part, the steel ball set up in the oil outlet and the steel ball compare in the inlet port be close to the export of oil outlet, the diameter of steel ball slightly is less than the aperture of oil outlet, still seted up the locating hole in the main part, the locating hole communicates to the lateral wall of oil outlet, the locating part is fixed in the locating hole of main part and the inner of locating part stretches into in the oil outlet, the steel ball to can with the locating part offsets when the outlet direction of oil outlet moves.
In the pump oil block of the electric hydraulic tool, an oil inlet is communicated with an oil storage cavity, an oil outlet is communicated with a hydraulic cylinder, and a plunger is arranged in a plunger hole. When the oil storage cavity is used, the plunger in the plunger hole moves outwards to absorb oil, and the oil in the oil storage cavity pushes up the one-way valve at the oil inlet hole to move towards the oil outlet hole and the plunger hole; otherwise, the plunger moves inwards to squeeze oil, and the oil can only be sent to the hydraulic cylinder through the oil outlet due to the arrangement of the one-way valve at the oil inlet. In the oil outlet process, as the steel balls are limited by the limiting piece, the steel balls can partially shield the oil outlet, oil can only be sent out from the gap between the oil outlet and the steel balls when being sent out, the instantaneous oil outlet quantity is greatly reduced, and the shaking of the tool and the damage of parts are avoided.
In the pump oil block of the electric hydraulic tool, the oil outlet comprises small holes which are coaxially and adjacently arranged and large holes with the diameter larger than that of the small holes, the large holes are closer to the outlet of the oil outlet than the small holes, annular retaining shoulders are formed at the communicating positions of the large holes and the small holes, the steel balls are arranged in the large holes and located between the retaining shoulders and the limiting pieces, the diameter of the steel balls is larger than that of the small holes and smaller than that of the large holes, and the steel balls can move along the opening direction of the oil outlet. The arrangement of the stop shoulder and the limiting piece is used for limiting the two ends of the steel ball, so that the steel ball is prevented from moving greatly, abrasion is reduced, noise is reduced, and meanwhile, the stability of oil outlet is guaranteed.
In the oil pumping block of the electric hydraulic tool, the outlet of the oil inlet hole is formed in the wall of the small hole. And the influence of the steel balls on oil inlet of the oil inlet hole is avoided.
In the above-mentioned electric hydraulic tool's pump oil block, still have the mounting hole in the main part, the check valve includes one-way spring and one-way case, the mounting hole with the inlet port is seted up respectively on the lateral wall of the upper opposite both sides of oil outlet, one-way spring set up in the mounting hole, and the one-way case can be shutoff under one-way spring's elasticity effect the export of inlet port.
Compared with the prior art, in the process of oil outlet of the oil pumping block of the electric hydraulic tool, as the steel balls are limited by the stop shoulder and the limiting piece, the steel balls can partially shield the oil outlet, oil can only be sent out from the gap between the oil outlet and the steel balls when being sent out, the instant oil outlet quantity is greatly reduced, and shaking of the tool and damage to parts are avoided.
Drawings
Fig. 1 is a schematic diagram of the structure of a pump block of the present electric hydraulic tool.
Fig. 2 is a schematic cross-sectional view of a pump block of the present electro-hydraulic tool.
In the figure, 1, a main body; 2. an oil inlet hole; 3. an oil outlet hole; 4. a plunger hole; 5. steel balls; 6. a limiting piece; 7. a small hole; 8. a large hole; 9. a shoulder; 10. a one-way spring; 11. a one-way valve core; 12. and (5) mounting holes.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 and 2, the pump oil block of the electric hydraulic tool comprises a block-shaped main body 1, wherein an oil inlet 2, an oil outlet 3 and a plunger 4 are arranged in the main body 1, the oil inlet 2 and the plunger 4 are communicated with the oil outlet 3, and a one-way valve is arranged at the oil inlet 2. In this embodiment, the main body 1 is further provided with a mounting hole 12, the mounting hole 12 and the oil inlet hole 2 are respectively opened on the side walls of the two opposite sides of the oil outlet hole 3, the check valve comprises a check spring 10 and a check valve core 11, the check spring 10 is arranged in the mounting hole 12, and the check valve core 11 can block the outlet of the oil inlet hole 2 under the elastic force of the check spring 10; the oil outlet 3 comprises small holes 7 which are coaxial and are adjacently arranged, and large holes 8 with the aperture larger than the small holes 7, wherein the large holes 8 are closer to the outlet of the oil outlet 3 than the small holes 7, and annular stop shoulders 9 are formed at the communication positions of the large holes 8 and the small holes 7; the oil inlet hole 2 is arranged at the side wall of the small hole 7.
The pump oil block further comprises a steel ball 5 and a limiting piece 6, wherein the steel ball 5 is arranged in a large hole 8 of the oil outlet 3, the steel ball 5 is closer to the outlet of the oil outlet 3 than the oil inlet 2, and the diameter of the steel ball 5 is larger than the aperture of the small hole 7 and smaller than the aperture of the large hole 8. The main body 1 is internally provided with a limiting hole in a penetrating way, the limiting hole is communicated to the side wall of the large hole 8 of the oil outlet 3, the limiting piece 6 is fixed in the limiting hole of the main body 1, the inner end of the limiting piece 6 extends into the oil outlet 3, the steel ball 5 is arranged between the stop shoulder 9 and the limiting piece 6, and the steel ball 5 can move towards the outlet direction of the oil outlet 3 and prop against the limiting piece 6. In this embodiment, the limiting member 6 is a screw screwed into the limiting hole.
In the pump oil block of the electric hydraulic tool, an oil inlet hole 2 is communicated with an oil storage cavity, an oil outlet hole 3 is communicated with a hydraulic cylinder, and a plunger is arranged in a plunger hole 4.
When the oil storage device is used, the plunger in the plunger hole 4 moves outwards to absorb oil, negative pressure is generated in the small hole 7, the steel ball 5 abuts against the stop shoulder 9 to form sealing, and the oil in the oil storage cavity pushes up the one-way valve core 11 at the oil inlet hole 2 to move towards the oil outlet hole 3 and the plunger hole 4. After the plunger stops moving, the one-way valve core 11 re-plugs the oil inlet hole 2 under the elastic force of the one-way spring 10.
The plunger moves inwards to squeeze oil, and the oil can only push up the steel ball 5 and is sent to the hydraulic cylinder through the oil outlet 3 due to the arrangement of the one-way valve at the oil inlet 2. And repeatedly sending the oil in the oil storage cavity into the hydraulic cylinder continuously to work.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (4)
1. The utility model provides an electric hydraulic tool's pump oil piece, is including being massive main part (1), have inlet port (2), oil outlet (3) and plunger hole (4) in main part (1), inlet port (2) and plunger hole (4) all with oil outlet (3) are linked together, inlet port (2) department is provided with the check valve, its characterized in that, pump oil piece still includes steel ball (5) and locating part (6), steel ball (5) set up in oil outlet (3) and steel ball (5) compare in inlet port (2) be close to more the export of oil outlet (3), the diameter of steel ball (5) is slightly less than the aperture of oil outlet (3), still seted up spacing hole in main part (1), spacing hole intercommunication to the lateral wall of oil outlet (3), locating part (6) are fixed in the spacing downthehole of main part (1) and the inner of locating part (6) stretch into in oil outlet (3), steel ball (5) are relatively in the export of oil outlet (3) can the orientation when the steel ball (6) offsets.
2. The oil pumping block of an electric hydraulic tool according to claim 1, wherein the oil outlet (3) comprises a small hole (7) which is coaxial and is arranged adjacently and a large hole (8) with a hole diameter larger than the small hole (7), the large hole (8) is closer to the outlet of the oil outlet (3) than the small hole (7), an annular shoulder (9) is formed at the communicating position of the large hole (8) and the small hole (7), the steel ball (5) is arranged in the large hole (8) and is positioned between the shoulder (9) and the limiting piece (6), the diameter of the steel ball (5) is larger than the hole diameter of the small hole (7) and smaller than the hole diameter of the large hole (8), and the steel ball (5) can move along the opening direction of the oil outlet (3).
3. The oil pumping block of an electro-hydraulic tool according to claim 2, wherein the outlet of the oil inlet hole (2) is opened on the wall of the small hole (7).
4. A pump block for an electric hydraulic tool according to claim 1, 2 or 3, wherein the main body (1) is further provided with a mounting hole (12), the check valve comprises a check spring (10) and a check valve core (11), the mounting hole (12) and the oil inlet hole (2) are respectively arranged on the side walls of the two opposite sides of the oil outlet hole (3), the check spring (10) is arranged in the mounting hole (12), and the check valve core (11) can seal the outlet of the oil inlet hole (2) under the action of the elasticity of the check spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322908318.7U CN221003092U (en) | 2023-10-30 | 2023-10-30 | Pump oil block of electric hydraulic tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322908318.7U CN221003092U (en) | 2023-10-30 | 2023-10-30 | Pump oil block of electric hydraulic tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003092U true CN221003092U (en) | 2024-05-24 |
Family
ID=91086966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322908318.7U Active CN221003092U (en) | 2023-10-30 | 2023-10-30 | Pump oil block of electric hydraulic tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003092U (en) |
-
2023
- 2023-10-30 CN CN202322908318.7U patent/CN221003092U/en active Active
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