Compression resistance testing equipment

Abstract

The utility model discloses a compressive property test equipment relates to test equipment technical field, including fixed mount, sliding seat and pressure subassembly, the sliding seat is provided on the fixed mount, the pressure subassembly is provided below the sliding seat, pressure subassembly includes pressure outer shell, spacing inner shell, pressure spring and press down subassembly, and the pressure outer shell is provided with the spacing inner shell, pressure spring and press down subassembly. The pressure outer shell is fixedly installed below the sliding seat, the limiting inner shell is installed on the inner side of the pressure outer shell, the downward pressing assembly is arranged in the pressure outer shell in a sliding mode, the downward pressing assembly slides in the pressure outer shell in the vertical direction, the limiting inner shell limits the downward pressing assembly, the pressure spring is arranged in the pressure outer shell to press the downward pressing assembly downwards, and the limiting inner shell is installed on the inner side of the pressure outer shell. According to the scheme, the compression resistance of the phantom can be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a compression performance testing device. Background Art

[0002] Bionic phantom is a tissue-mimicking material with a predetermined size and shape. It is used to measure, study and simulate the relationship between human or animal tissue and sound waves, force feedback, radiation, etc. The phantom can represent the entire human body or a specific part of the human body. In the prior art, the phantom is used to simulate the human body for medical staff to perform simulated operations. However, during the preparation of the phantom, the compressive performance of the phantom needs to be tested to ensure that the prepared body membrane meets the simulation test requirements. Utility Model Content

[0003] The utility model aims to provide a compression performance testing device to address the deficiencies in the prior art.

[0004] A pressure resistance performance testing device comprises a fixed frame, a sliding seat and a pressure component, wherein the sliding seat is arranged on the fixed frame, the pressure component is arranged below the sliding seat, the pressure component comprises a pressure outer shell, a limiting inner shell, a pressure spring and a pressing assembly, the pressure outer shell is fixedly installed below the sliding seat, the limiting inner shell is installed on the inner side of the pressure outer shell, the pressing assembly is slidably arranged in the pressure outer shell, the pressing assembly slides vertically in the pressure outer shell, the limiting inner shell limits the pressing assembly, and the pressure spring is arranged in the pressure outer shell to press the pressing assembly downward.

[0005] Furthermore, the pressing assembly includes a pressing rod and a pressing head. A limiting portion is arranged on the top of the pressing rod, the limiting portion is located in the pressure outer shell, the pressing rod is slidably limited on the limiting inner shell, and the pressing head is arranged at the lower end of the pressing rod.

[0006] Furthermore, the cross section of the push-down rod is rectangular.

[0007] Furthermore, the lower end surface of the pressure head is arranged in an arc shape.

[0008] Furthermore, a plurality of adjustment grooves are arranged at intervals on the outer side wall of the limiting inner shell, and an adjustment bolt is arranged on the pressure outer shell. The adjustment bolt passes through the pressure outer shell and is embedded in the adjustment groove in the limiting inner shell.

[0009] Furthermore, it also includes a pressure sensor, which is installed on the upper part of the inner side of the pressure shell, the upper end of the pressure spring is in contact with the pressure sensor, and the lower end of the pressure spring is in contact with the pressing component.

[0010] Furthermore, the fixing frame includes a mounting base, a mounting vertical frame and a mounting crossbeam, the mounting vertical frame is arranged on the mounting base, the mounting crossbeam is transversely arranged on the mounting vertical frame, and the sliding seat is mounted on the mounting crossbeam.

[0011] Furthermore, a slide bar is disposed on the mounting crossbeam, and a slide groove is disposed on the sliding seat, and the slide groove on the sliding seat is slidably matched with the slide bar on the mounting crossbeam.

[0012] Furthermore, two slide rods are provided, and the two slide rods are provided on both sides of the mounting cross beam. The sliding seat is provided in a U-shape. Two slide grooves are provided, and the two slide grooves are symmetrically provided on both sides of the inner side of the sliding seat. The slide grooves on both sides slide and fit with the slide rods on both sides.

[0013] The advantages of the utility model compared with the prior art are:

[0014] First: In this scheme, the pressure is generated by the pressure spring to push down the pressing component, the material is placed directly below the pressure component, the pressing component generates pressure on the material, the deformation distance A of the material under the current pressure is measured, and then the force value when the pressure spring is compressed to the same state of deformation distance A is measured.

[0015] Second, when testing different materials at different pressures, this solution can be adjusted by replacing the force value of the spring or changing the corresponding positions of the adjusting slot and the adjusting bolt.

[0016] Third: In this solution, pressure is applied to the material through the downward pressing component, and the force value of the material in the current state is measured through the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0018] Figure 2 It is a structural schematic diagram of the pressure component;

[0019] Figure 3 is a cross-sectional view of a pressure component;

[0020] Figure 4 It is a state diagram of the pressure component during operation;

[0021] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure numerals: fixed frame 1, mounting beam 11, sliding seat 2, pressure assembly 3, pressure outer shell 31, adjusting bolt 311, limiting inner shell 32, adjusting groove 321, pressure spring 33, pressing assembly 34, pressing rod 341, limiting portion 3411, pressure head 342, pressure sensor 4. DETAILED DESCRIPTION

[0023] Combined with Figure 1-5 As shown, a compressive performance testing device includes a fixed frame 1, a sliding seat 2 and a pressure component 3, wherein the sliding seat 2 is arranged on the fixed frame 1, and the pressure component 3 is arranged below the sliding seat 2. The material is assembled on the fixed frame 1 and is directly below the pressure component 3, and the compressive performance of the material is tested by pressing down the pressure component 3.

[0024] Implementation method 1 of the pressure component 3: The pressure component 3 includes a pressure outer shell 31, a limiting inner shell 32, a pressure spring 33 and a pressing component 34. The pressure outer shell 31 is fixedly installed below the sliding seat 2, the limiting inner shell 32 is installed on the inner side of the pressure outer shell 31, the pressing component 34 is slidably arranged in the pressure outer shell 31, the pressing component 34 slides vertically in the pressure outer shell 31, the limiting inner shell 32 limits the pressing component 34, and the pressure spring 33 is arranged in the pressure outer shell 31 to press the pressing component 34 downward. The elastic potential energy provided by the pressure spring 33 drives the pressing component 34 to generate downward pressure to test the material.

[0025] Preferably, the pressing assembly 34 includes a pressing rod 341 and a pressing head 342, a limiting portion 3411 is arranged on the top of the pressing rod 341, the limiting portion 3411 is located in the pressure shell 31, the cross-section of the pressing rod 341 is rectangular, so as to limit the pressing rod 341, thereby ensuring the stability of the pressing rod 341 in the process of sliding up and down, the pressing rod 341 is slidably limited on the limiting inner shell 32, the pressing head 342 is arranged at the lower end of the pressing rod 341, the lower end face of the pressing head 342 is arranged in an arc shape, and the pressing head 342 is in extrusion contact with the material through the lower end face of the pressing head 342. The arc-shaped structure can ensure that the pressing head 342 outputs pressure stably, and the structure without edges and corners can prevent the pressing head 342 from directly damaging the material, thereby ensuring the accuracy of the test.

[0026] Preferably, a plurality of adjustment grooves 321 are arranged at intervals on the outer wall of the limiting inner shell 32, and an adjustment bolt 311 is arranged on the pressure outer shell 31, and the adjustment bolt 311 passes through the pressure outer shell 31 and is embedded in the adjustment groove 321 in the limiting inner shell 32. The matching position of the adjustment bolt 311 and the adjustment groove 321 is set according to the detection needs. The higher the setting position of the limiting inner shell 32 is, the greater the pressure potential energy of the pressure spring 33 is, and the greater the pressure that can be generated on the material is; the lower the setting position of the limiting inner shell 32 is, the smaller the pressure potential energy of the pressure spring 33 is, and the smaller the pressure that can be generated on the material is, thereby improving the test range of the equipment.

[0027] Preferably, the fixed frame 1 includes a mounting base, a mounting vertical frame and a mounting cross beam 11, the mounting vertical frame is arranged on the mounting base, the mounting cross beam 11 is transversely arranged on the mounting vertical frame, the sliding seat 2 is installed on the mounting cross beam 11, the mounting cross beam 11 has a slide bar, and the sliding seat 2 is provided with a slide groove, the slide groove on the sliding seat 2 is slidably matched with the slide bar on the mounting cross beam 11, two slide bars are provided, and the two slide bars are provided on both sides of the mounting cross beam 11, the sliding seat 2 is U-shaped, and two slide grooves are provided, and the two slide grooves are symmetrically provided on both sides of the inner side of the sliding seat 2, the slide grooves on both sides are slidably matched with the slide bars on both sides, and the sliding seat 2 and the slide groove cooperate with each other, so that the sliding seat 2 can be horizontally slidably adjusted on the mounting cross beam 11.

[0028] During the test of this embodiment, a pressure spring 33 of appropriate pressure is first selected, and the pressure spring 33 is installed in the pressure housing 31. The pressure spring 33 generates pressure to push down the pressing component 34, and the material is placed directly below the pressure component 3. The pressing component 34 generates pressure on the material, and the deformation distance A of the material under the current pressure is measured. Then, the force value of the pressure spring 33 when it is compressed to the same deformation distance A is measured. When different pressures are tested on different materials, the force value of the spring can be changed or the corresponding positions of the adjusting slot 321 and the adjusting bolt 311 can be changed for adjustment.

[0029] Implementation method 2 of the pressure component 3: The pressure component 3 includes a pressure outer shell 31, a limiting inner shell 32, a pressure sensor 4, a pressure spring 33 and a pressing component 34. The pressure outer shell 31 is fixedly installed below the sliding seat 2, the limiting inner shell 32 is installed on the inner side of the pressure outer shell 31, the pressing component 34 is slidably arranged in the pressure outer shell 31, the pressing component 34 slides in the vertical direction in the pressure outer shell 31, the limiting inner shell 32 limits the pressing component 34, the pressure spring 33 is arranged in the pressure outer shell 31 to press the pressing component 34 downward, and the elastic potential energy provided by the pressure spring 33 drives the pressing component 34 to generate downward pressure to test the material. The pressure sensor 4 is installed on the upper part of the inner side of the pressure outer shell 31, the upper end of the pressure spring 33 contacts the pressure sensor 4, and the lower end of the pressure spring 33 contacts the pressing component 34.

[0030] Preferably, the pressing assembly 34 includes a pressing rod 341 and a pressing head 342, a limiting portion 3411 is arranged on the top of the pressing rod 341, the limiting portion 3411 is located in the pressure shell 31, the cross-section of the pressing rod 341 is rectangular, so as to limit the pressing rod 341, thereby ensuring the stability of the pressing rod 341 in the process of sliding up and down, the pressing rod 341 is slidably limited on the limiting inner shell 32, the pressing head 342 is arranged at the lower end of the pressing rod 341, the lower end face of the pressing head 342 is arranged in an arc shape, and the pressing head 342 is in extrusion contact with the material through the lower end face of the pressing head 342. The arc-shaped structure can ensure that the pressing head 342 outputs pressure stably, and the structure without edges and corners can prevent the pressing head 342 from directly damaging the material, thereby ensuring the accuracy of the test.

[0031] Preferably, a plurality of adjustment grooves 321 are arranged at intervals on the outer wall of the limiting inner shell 32, and an adjustment bolt 311 is arranged on the pressure outer shell 31, and the adjustment bolt 311 passes through the pressure outer shell 31 and is embedded in the adjustment groove 321 in the limiting inner shell 32. The matching position of the adjustment bolt 311 and the adjustment groove 321 is set according to the detection needs. The higher the setting position of the limiting inner shell 32 is, the greater the pressure potential energy of the pressure spring 33 is, and the greater the pressure that can be generated on the material is; the lower the setting position of the limiting inner shell 32 is, the smaller the pressure potential energy of the pressure spring 33 is, and the smaller the pressure that can be generated on the material is, thereby improving the test range of the equipment.

[0032] Preferably, the fixed frame 1 includes a mounting base, a mounting vertical frame and a mounting cross beam 11, the mounting vertical frame is arranged on the mounting base, the mounting cross beam 11 is transversely arranged on the mounting vertical frame, the sliding seat 2 is installed on the mounting cross beam 11, the mounting cross beam 11 has a slide bar, and the sliding seat 2 is provided with a slide groove, the slide groove on the sliding seat 2 is slidably matched with the slide bar on the mounting cross beam 11, two slide bars are provided, and the two slide bars are provided on both sides of the mounting cross beam 11, the sliding seat 2 is U-shaped, and two slide grooves are provided, and the two slide grooves are symmetrically provided on both sides of the inner side of the sliding seat 2, the slide grooves on both sides are slidably matched with the slide bars on both sides, and the sliding seat 2 and the slide groove cooperate with each other, so that the sliding seat 2 can be horizontally slidably adjusted on the mounting cross beam 11.

[0033] During the test of this embodiment, Figure 4 As shown, the material is placed directly below the pressure component 3, pressure is applied to the material through the downward pressure component 34, and the force value of the material in the current state is measured by the pressure sensor 4. When different pressure tests are performed on different materials, the force value of the spring can be changed or the corresponding positions of the adjusting slot 321 and the adjusting bolt 311 can be changed for adjustment.

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A compressive performance testing device, characterized in that: The invention comprises a fixed frame (1), a sliding seat (2) and a pressure assembly (3), wherein the sliding seat (2) is arranged on the fixed frame (1), and the pressure assembly (3) is arranged below the sliding seat (2). The pressure assembly (3) comprises a pressure shell (31), a limiting inner shell (32), a pressure spring (33) and a downward pressing assembly (34), wherein the pressure shell (31) is fixedly installed below the sliding seat (2), the limiting inner shell (32) is installed inside the pressure shell (31), and the downward pressing assembly (34) is slidably arranged in the pressure shell (31). The downward pressing assembly (34) slides vertically in the pressure shell (31), the limiting inner shell (32) limits the downward pressing assembly (34), and the pressure spring (33) is arranged in the pressure shell (31) to press the downward pressing assembly (34) downward.

2. A compressive performance testing device according to claim 1, characterized in that: The pressing assembly (34) includes a pressing rod (341) and a pressing head (342). A limiting portion (3411) is provided at the top of the pressing rod (341). The limiting portion (3411) is located in the pressure outer shell (31). The pressing rod (341) is slidably limited on the limiting inner shell (32). The pressing head (342) is provided at the lower end of the pressing rod (341).

3. The compressive performance testing device according to claim 2, characterized in that: The cross section of the pressing rod (341) is rectangular.

4. The compressive performance testing device according to claim 2, characterized in that: The lower end surface of the pressure head (342) is arranged in an arc shape.

5. The compressive performance testing device according to claim 1, characterized in that: A plurality of adjustment slots (321) are arranged at intervals on the outer side wall of the position-limiting inner shell (32); an adjustment bolt (311) is provided on the pressure outer shell (31); the adjustment bolt (311) passes through the pressure outer shell (31) and is embedded in the adjustment slot (321) in the position-limiting inner shell (32).

6. The compressive performance testing device according to claim 1, characterized in that: The pressure sensor (4) is mounted on the upper portion of the inner side of the pressure housing (31), the upper end of the pressure spring (33) contacts the pressure sensor (4), and the lower end of the pressure spring (33) contacts the pressing assembly (34).

7. The compressive performance testing device according to claim 1, characterized in that: The fixed frame (1) comprises a mounting base, a mounting vertical frame and a mounting crossbeam (11); the mounting vertical frame is arranged on the mounting base; the mounting crossbeam (11) is arranged transversely on the mounting vertical frame; and the sliding seat (2) is mounted on the mounting crossbeam (11).

8. The compressive performance testing device according to claim 7, characterized in that: A slide rod is provided on the installation beam (11), and a slide groove is provided on the sliding seat (2). The slide groove on the sliding seat (2) is slidably matched with the slide rod on the installation beam (11).

9. The compressive performance testing device according to claim 8, characterized in that: Two slide rods are provided, and the two slide rods are provided on both sides of the mounting cross beam (11); the sliding seat (2) is provided in a U-shape; two slide grooves are provided, and the two slide grooves are symmetrically provided on both sides of the inner side of the sliding seat (2); the slide grooves on both sides slide and fit with the slide rods on both sides.

Images