CN118130082A - Pulling pressure testing device - Google Patents
Pulling pressure testing device Download PDFInfo
- Publication number
- CN118130082A CN118130082A CN202410344929.XA CN202410344929A CN118130082A CN 118130082 A CN118130082 A CN 118130082A CN 202410344929 A CN202410344929 A CN 202410344929A CN 118130082 A CN118130082 A CN 118130082A
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 239000003921 oil Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 12
- 230000001502 supplementing effect Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012937 correction Methods 0.000 abstract description 2
- 238000012669 compression test Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000013589 supplement Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a tension and pressure testing device which comprises a base, a movable seat, a tension and pressure sensor and a hydraulic system, wherein the movable seat is arranged on the base and can slide along the length direction of the base; the hydraulic system comprises a hydraulic cylinder, an oil pot and a steel cylinder, wherein the hydraulic cylinder comprises a cylinder body fixed on the base, and a piston arranged in the cylinder body, the piston divides an inner cavity of the hydraulic cylinder into a first cavity and a second cavity which are arranged front and back, the pull pressure sensor is connected between a piston rod of the hydraulic cylinder and the movable seat, the oil pot is used for supplementing hydraulic oil for the first cavity and the second cavity, and the steel cylinder is used for being communicated with the second cavity when the piston moves backwards and the first cavity when the piston moves forwards. The invention improves the test precision, does not need to be configured with complex correction structures and programs, and simplifies the structure of the tension and compression test device.
Description
Technical Field
The invention relates to the technical field of test equipment, in particular to a tensile and compressive testing device.
Background
With the continuous development of manufacturing industry, the precision requirements of the product parts are continuously improved, and various physical characteristics of the product parts need to be tested to judge whether the physical characteristics of the product meet the use requirements.
When testing some transmission components, it is generally necessary to use a tension and pressure testing device to participate in detecting the efficiency of the product, for example, when testing the efficiency of the roller screw, the tension and pressure testing device is required to detect the tension and pressure applied to the rated load when the roller screw drives the screw nut to move transversely, and finally calculate to obtain the actual output power of the roller screw, so as to determine whether the efficiency of the roller screw meets the design requirement. The existing tensile and compressive testing device generally adopts a spring as a load, when a tested workpiece acts on the spring, the spring stretches or contracts when being pulled or pressed, and the elastic stress generated by the spring is not constant when the spring stretches or contracts to different degrees, so that the tensile and compressive testing device is difficult to obtain a relatively accurate value, and the magnitude of the tested force can be as close to an actual value as possible through various complex algorithms and the evaluation of the performance of the spring, but the structure and the program setting of the testing device are relatively complex, and the accuracy still needs to be improved.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention aims to provide a tension and pressure testing device with simple structure and high testing precision.
The invention adopts the following technical scheme:
the first aspect of the present invention provides a tensile-pressure testing apparatus, comprising:
a tension and pressure testing device comprises a base, a movable seat, a tension and pressure sensor and a hydraulic system, wherein the movable seat is arranged on the base and can slide along the length direction of the base;
The hydraulic system comprises a hydraulic cylinder, an oil pot and a steel cylinder, wherein the hydraulic cylinder comprises a cylinder body fixed on the base, and a piston arranged in the cylinder body, the piston divides an inner cavity of the hydraulic cylinder into a first cavity and a second cavity which are arranged front and back, the pull pressure sensor is connected between a piston rod of the hydraulic cylinder and the movable seat, the oil pot is used for supplementing hydraulic oil for the first cavity and the second cavity, and the steel cylinder is used for being communicated with the second cavity when the piston moves backwards and the first cavity when the piston moves forwards.
According to the tension and pressure testing device provided by the embodiment of the invention, the movable seat is used as a force-bearing component, the hydraulic cylinder is used as a load, the tension and pressure sensor is arranged between the movable seat and the load, and the interaction force between the movable seat and the load is measured through the tension and pressure sensor, so that the force value of the tested workpiece acting on the movable seat is obtained. When the tested workpiece applies pressure to the movable seat, the piston rod moves backwards to compress the second chamber, the second chamber is communicated with the steel cylinder, so that the second chamber can form almost constant pressure, and meanwhile, the oil can timely supplement hydraulic oil into the first chamber; when the tested workpiece applies a pulling force to the movable seat, the piston rod moves forwards to compress the first chamber, the first chamber is communicated with the steel cylinder to enable the first chamber to form almost constant pressure, and meanwhile, the oil can timely supplement hydraulic oil into the second chamber; when the movable seat is pressed or pulled, the inner space of the steel cylinder is communicated with the second chamber or the first chamber to form a larger pressure chamber, and the piston moves to ensure that the volume change of the larger pressure chamber is almost negligible, so that the pressure and the pulling force applied by the piston to the pulling pressure sensor can not generate larger change in the moving process of the piston, the hydraulic cylinder forms a load capable of outputting constant reaction force, the force value measured by the pulling pressure sensor is more accurate and direct, the testing precision is improved, a complex correcting structure and a complex program are not required to be configured, and the structure of the pulling pressure testing device is simplified.
In a first aspect of the present invention, as an optional embodiment, the hydraulic system further includes a first valve and a second valve, the first chamber is connected to a pipeline between the second chamber and the cylinder, and the second valve is connected to a pipeline between the second chamber and the tank, and the first valve is connected to a pipeline between the first chamber and the cylinder, and the second valve is connected to a pipeline between the second chamber and the tank. The hydraulic cylinder, the oil can and the steel cylinder are communicated through a pipeline, the on-off between the second chamber and the steel cylinder is controlled through the first valve, the on-off between the second chamber and the oil can is controlled through the second valve, when the piston moves backwards, the first valve is opened, the second valve is closed, and when the piston moves forwards, the first valve is closed, and the second valve is opened; the first valve and the second valve control the passage of the hydraulic system, so that the tension test and the pressure test can be switched.
In the first aspect of the present invention, as an alternative embodiment, the first valve and the second valve are each solenoid valves. By setting the first valve and the second valve as the electromagnetic valves, the quick switching between the tensile test and the pressure test can be realized, so that the test efficiency is improved.
In a first aspect of the present invention, as an alternative embodiment, the base is provided with a linear guide rail, and the movable seat is provided with a slider slidably mounted on the linear guide rail. The movable seat is mounted on the base by utilizing the linear guide rail pair formed by the linear guide rail and the sliding block, so that the movable seat is guided, the moving direction of the movable seat is ensured to be consistent with the direction of the force applied to the movable seat by the workpiece, and the testing precision is increased.
In a first aspect of the present invention, as an alternative embodiment, the movable seat includes a bottom plate fixedly connected to the slider, a vertical plate fixed to the bottom plate and extending vertically, and a reinforcing rib fixedly connected between the bottom plate and the vertical plate, and the tension and pressure sensor is installed between the vertical plate and the piston rod. The vertical plate is utilized to provide a larger installation area for the tension pressure sensor, the bottom plate and the vertical plate are reinforced through the reinforcing ribs, the movable seat is prevented from deforming when being stressed, and the testing precision is improved.
In a first aspect of the present invention, as an optional embodiment, a connection bolt is disposed between the pull pressure sensor and the piston rod, one end of the connection bolt is connected to the piston rod in a penetrating manner and is screwed to the piston rod, the housing of the pull pressure sensor is fixed on the vertical plate, and the other end of the connection bolt is fixed on the movable end of the pull pressure sensor. The movable end of the pull pressure sensor is connected with the piston rod of the hydraulic cylinder through the screw rod, so that the pull pressure sensor is detachably connected with the hydraulic cylinder, and the hydraulic cylinder and the pull pressure sensor are conveniently overhauled and maintained.
In a first aspect of the present invention, as an optional embodiment, the base is mounted with a fixing frame, a top of the fixing frame is higher than a cylinder body of the hydraulic cylinder, and the oil can is fixedly mounted on the top of the fixing frame. Utilize the mount installation oilcan, make the height of oilcan be higher than the height of pneumatic cylinder, the inside hydraulic oil of oilcan flows to the pneumatic cylinder inside through self gravity, supplements hydraulic oil to the pneumatic cylinder inside through gravity promptly, has simplified hydraulic system's structure.
In a first aspect of the present invention, as an optional embodiment, the base is provided with a chute having an extension direction consistent with an axial direction of the piston rod, the cylinder body of the hydraulic cylinder is fixedly connected to an adjusting seat, the adjusting seat is provided with a sliding boss embedded in the chute, and the adjusting seat is locked on the base by a plurality of fixing bolts. The position of the cylinder body of the hydraulic cylinder on the base is adjustable, so that the testing device can be suitable for testing different workpieces, and the application range of the testing device is enlarged.
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 2;
FIG. 4 is a schematic view of the hydraulic system of the present invention in use;
fig. 5 is a schematic view of another use state of the hydraulic system of the present invention.
In the figure: 10. a base; 11. a linear guide rail; 12. a fixing frame; 13. a mounting plate; 131. a chute; 20. a movable seat; 21. a bottom plate; 211. a slide block; 22. reinforcing ribs; 23. a vertical plate; 30. a pull pressure sensor; 40. a hydraulic cylinder; 401. a first chamber; 402. a second chamber; 41. a cylinder; 42. a piston; 43. a connecting bolt; 50. an oilcan; 61. a first valve; 62. a second valve; 70. and (5) a steel cylinder.
Detailed Description
The present application will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments. Materials and equipment used in this example are commercially available, except as specifically noted. Examples of embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless specifically stated otherwise.
In the description of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be fixedly connected, or may be connected through an intermediary, or may be connected between two elements or may be an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1-5, a dual-chamber hydraulic cylinder 40 according to an embodiment of the present invention includes:
the device comprises a base 10, a movable seat 20, a tension and pressure sensor 30 and a hydraulic system, wherein the movable seat 20 is arranged on the base 10 and can slide along the length direction of the base 10;
The hydraulic system comprises a hydraulic cylinder 40, an oil can 50 and a steel cylinder, wherein the hydraulic cylinder 40 comprises a cylinder body 41 fixed on the base 10 and a piston 42 installed in the cylinder body 41, the piston 42 divides the inner cavity of the hydraulic cylinder 40 into a first cavity 401 and a second cavity 402 which are arranged front and back, the pull pressure sensor 30 is connected between a piston 42 rod of the hydraulic cylinder 40 and the movable seat 20, the oil can 50 is used for supplementing hydraulic oil to the first cavity 401 and the second cavity 402, and the steel cylinder is used for communicating with the second cavity 402 when the piston 42 moves backwards and communicating with the first cavity 401 when the piston 42 moves forwards.
According to the pull pressure testing device of the embodiment of the invention, the movable seat 20 is used as a force-bearing component, the hydraulic cylinder 40 is used as a load, the pull pressure sensor 30 is arranged between the movable seat 20 and the load, the interaction force between the movable seat 20 and the load is measured through the pull pressure sensor 30, and then the force value of the tested workpiece acting on the movable seat 20 is obtained. When the tested workpiece applies pressure to the movable seat 20, the piston 42 moves backwards to compress the second chamber 402, the second chamber 402 is communicated with the steel cylinder, so that the second chamber 402 can form almost constant pressure, and meanwhile, the oil can 50 timely supplements hydraulic oil into the first chamber 401; when the tested workpiece applies a pulling force to the movable seat 20, the piston 42 moves forwards to compress the first chamber 401, the first chamber 401 is communicated with the steel cylinder, so that the first chamber 401 can form almost constant pressure, and meanwhile, the oil can 50 timely supplements hydraulic oil into the second chamber 402; when the movable seat 20 is pressed or pulled, the inner space of the steel cylinder is communicated with the second chamber 402 or the first chamber 401 to form a larger pressure chamber, so that the volume change of the larger pressure chamber is almost negligible due to the movement of the piston 42, and the pressure and the pulling force applied by the piston 42 to the pulling pressure sensor 30 can not generate larger change in the moving process of the piston 42, so that the hydraulic cylinder 40 forms a load capable of outputting constant reaction force, the force value measured by the pulling pressure sensor 30 is more accurate and direct, the testing precision is improved, complex correction structures and procedures are not needed, and the structure of the pulling pressure testing device is simplified.
In a preferred embodiment of the present invention, the hydraulic system further comprises a first valve 61 and a second valve 62, wherein the first chamber 401 is communicated with the oil can 50, the first chamber 401 is communicated with the steel cylinder, the second chamber 402 is communicated with the oil can 50, and the second chamber 402 is communicated with the steel cylinder through pipelines, the first valve 61 is connected to the pipeline between the second chamber 402 and the steel cylinder, and the second valve 62 is connected to the pipeline between the second chamber 402 and the oil can 50. The hydraulic cylinder 40, the oil can 50 and the steel bottle are communicated through pipelines, the on-off between the second chamber 402 and the steel bottle is controlled through the first valve 61, the on-off between the second chamber 402 and the oil can 50 is controlled through the second valve 62, when the piston 42 moves backwards, the first valve 61 is opened, the second valve 62 is closed, and when the piston 42 moves forwards, the first valve 61 is closed, and the second valve 62 is opened; the switching between the tensile test and the pressure test can be achieved by controlling the passage of the hydraulic system through the first valve 61 and the second valve 62.
In the preferred embodiment of the present invention, the first valve 61 and the second valve 62 are both solenoid valves. By setting the first valve 61 and the second valve 62 as the electromagnetic valves as described above, quick switching between the tensile test and the pressure test can be achieved to improve the test efficiency.
In the preferred embodiment of the present invention, the linear guide 11 is disposed on the base 10, and the sliding block 211 slidably mounted on the linear guide 11 is disposed on the movable base 20. The movable seat 20 is mounted on the base 10 by using the pair of linear guide rails 11 consisting of the linear guide rail 11 and the sliding block 211, and the movable seat 20 is guided to ensure that the moving direction of the movable seat 20 is consistent with the direction of the force applied to the movable seat 20 by the workpiece, so that the testing precision is increased.
In the preferred embodiment of the present invention, the movable base 20 includes a base plate 21 fixedly coupled to the slider 211, a vertical plate 23 fixed to the base plate 21 and extending vertically, and a reinforcing rib 22 fixedly coupled between the base plate 21 and the vertical plate 23, and the tension/compression sensor 30 is installed between the vertical plate 23 and the piston 42 rod. The vertical plate 23 is utilized to provide a larger installation area for the tension and pressure sensor 30, the bottom plate 21 and the vertical plate 23 are reinforced through the reinforcing ribs 22, the movable seat 20 is prevented from deforming when being stressed, and the testing precision is improved.
In the preferred embodiment of the present invention, a connecting bolt 43 is disposed between the pull pressure sensor 30 and the piston 42, one end of the connecting bolt 43 is connected to the piston 42 through a threaded connection, and is screwed to the piston 42, the housing of the pull pressure sensor 30 is fixed on the vertical plate 23, and the other end of the connecting bolt 43 is fixed on the movable end of the pull pressure sensor 30. The movable end of the pull pressure sensor 30 is connected with the piston 42 rod of the hydraulic cylinder 40 through a screw rod, so that the pull pressure sensor 30 is detachably connected with the hydraulic cylinder 40, and the hydraulic cylinder 40 and the pull pressure sensor 30 are convenient to overhaul and maintain.
In the preferred embodiment of the present invention, a fixing frame 12 is mounted on the base 10, the top of the fixing frame 12 is higher than the cylinder 41 of the hydraulic cylinder 40, and the oil can 50 is fixedly mounted on the top of the fixing frame 12. The oil can 50 is installed by the fixing frame 12, so that the height of the oil can 50 is higher than that of the hydraulic cylinder 40, hydraulic oil in the oil can 50 flows into the hydraulic cylinder 40 through self gravity, namely, the hydraulic oil is supplemented into the hydraulic cylinder 40 through gravity, and the structure of a hydraulic system is simplified.
In the preferred embodiment of the present invention, the base 10 is provided with a sliding groove 131 having an extension direction consistent with the axial direction of the rod of the piston 42, the cylinder body 41 of the hydraulic cylinder 40 is fixedly connected to an adjusting seat, the adjusting seat is provided with a sliding boss embedded in the sliding groove 131, and the adjusting seat is locked on the base 10 through a plurality of fixing bolts. A mounting plate 13 may be fixed on the base 10, a chute 131 is arranged on the mounting plate 13, an adjusting seat is positioned above the mounting plate 13 and a sliding boss is embedded in the chute 131, and after the adjusting seat is adjusted in place, the adjusting seat is fixed on the mounting plate 13 by using a fixing bolt; the position of the cylinder body 41 of the hydraulic cylinder 40 on the base 10 is adjustable, so that the testing device can be suitable for testing different workpieces, and the application range of the testing device is enlarged.
Although only certain features and embodiments of the application have been illustrated and described, many modifications and changes may occur to those skilled in the art without departing substantially from the scope and spirit of the application as defined in the appended claims, for example: variations in the size, dimensions, structure, shape and proportions of the various elements, mounting arrangements, use of materials, colors, orientations, etc.
The foregoing embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the embodiments of the present invention, so that any insubstantial changes and substitutions made by those skilled in the art on the basis of the embodiments of the present invention fall within the scope of the embodiments of the present invention.
Claims (8)
1. The tension and pressure testing device is characterized by comprising a base, a movable seat, a tension and pressure sensor and a hydraulic system, wherein the movable seat is arranged on the base and can slide along the length direction of the base;
The hydraulic system comprises a hydraulic cylinder, an oil pot and a steel cylinder, wherein the hydraulic cylinder comprises a cylinder body fixed on the base, and a piston arranged in the cylinder body, the piston divides an inner cavity of the hydraulic cylinder into a first cavity and a second cavity which are arranged front and back, the pull pressure sensor is connected between a piston rod of the hydraulic cylinder and the movable seat, the oil pot is used for supplementing hydraulic oil for the first cavity and the second cavity, and the steel cylinder is used for being communicated with the second cavity when the piston moves backwards and the first cavity when the piston moves forwards.
2. The pull pressure testing device of claim 1, wherein the hydraulic system further comprises a first valve and a second valve, wherein the first chamber is in communication with the oil can, the second chamber is in communication with the oil can, the first valve is connected to the line between the second chamber and the oil can, and the second valve is connected to the line between the second chamber and the oil can.
3. The pull-pressure testing device of claim 2, wherein the first valve and the second valve are solenoid valves.
4. The pull-pressure testing device of claim 1, wherein the base is provided with a linear guide rail, and the movable seat is provided with a slider slidably mounted on the linear guide rail.
5. The tension and compression testing device of claim 4, wherein the movable seat comprises a bottom plate fixedly connected to the slide block, a vertical plate fixed to the bottom plate and extending vertically, and a reinforcing rib fixedly connected between the bottom plate and the vertical plate, and the tension and compression sensor is installed between the vertical plate and the piston rod.
6. The pull pressure testing device according to claim 5, wherein a connecting bolt is arranged between the pull pressure sensor and the piston rod, one end of the connecting bolt is connected to the piston rod in a penetrating manner and is fixedly connected with the piston rod in a threaded manner, the shell of the pull pressure sensor is fixed on the vertical plate, and the other end of the connecting bolt is fixed at the movable end of the pull pressure sensor.
7. The pull-pressure testing device of claim 1, wherein a fixing frame is mounted on the base, the top of the fixing frame is higher than the cylinder body of the hydraulic cylinder, and the oilcan is fixedly mounted on the top of the fixing frame.
8. The pull-pressure testing device according to claim 1, wherein a sliding groove with an extending direction consistent with an axial direction of the piston rod is arranged on the base, a cylinder body of the hydraulic cylinder is fixedly connected to an adjusting seat, a sliding boss embedded in the sliding groove is arranged on the adjusting seat, and the adjusting seat is locked on the base through a plurality of fixing bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410344929.XA CN118130082A (en) | 2024-03-25 | 2024-03-25 | Pulling pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410344929.XA CN118130082A (en) | 2024-03-25 | 2024-03-25 | Pulling pressure testing device |
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| Publication Number | Publication Date |
|---|---|
| CN118130082A true CN118130082A (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410344929.XA Pending CN118130082A (en) | 2024-03-25 | 2024-03-25 | Pulling pressure testing device |
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| Country | Link |
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| CN (1) | CN118130082A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118329248A (en) * | 2024-06-17 | 2024-07-12 | 晗煊科技(成都)有限公司 | Pressure sensor suitable for maximum pressure measurement |
-
2024
- 2024-03-25 CN CN202410344929.XA patent/CN118130082A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118329248A (en) * | 2024-06-17 | 2024-07-12 | 晗煊科技(成都)有限公司 | Pressure sensor suitable for maximum pressure measurement |
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