Impedance spectrometer test probe

Abstract

The utility model discloses an impedance spectrometer test probe, which comprises a positioning ring and a probe rod, the probe rod vertically penetrates through the positioning ring, a plurality of groups of locking frames for supporting the probe rod are arranged on the inner side of the positioning ring in a surrounding manner, and a scraping ring sleeved on the outer side of the probe rod is coaxially fixed on the bottom surface of the positioning ring; a plurality of containing grooves for containing the locking frame are formed in the middle of the positioning ring, guide holes are formed in the containing grooves in the radial direction of the positioning ring in a penetrating mode, and the locking frame comprises pressing blocks in sliding fit with the containing grooves. The device has the beneficial effects that the positioning ring is detachably arranged on the outer side of the probe rod, and the height-adjustable positioning ring is used as a bearing structure for supporting the probe rod on the surface of an object to be tested, so that the depth of the probe extending into the object to be tested can be adjusted as required, and the test is more convenient; in addition, the scraping ring attached to the outer circumference of the probe rod is arranged on the bottom side of the positioning ring, the probe rod can be cleaned conveniently to replace the testing position, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of testing equipment, in particular to an impedance spectrometer testing probe. Background Art

[0002] Cement-based materials can be subjected to electrochemical impedance spectroscopy testing during cement hydration, ion corrosion, liquid penetration and other processes. As a new research method, electrochemical impedance spectroscopy can be used to detect changes in the electrical properties of cement-based materials when their structure changes, thereby obtaining corresponding information on changes in the internal state of the cement-based material structure to assist personnel in controlling the quality of cement-based materials.

[0003] When testing cement-based materials, the current impedance spectrometer needs to insert the probe into the material to be tested. However, since cement-based materials are mostly non-solid substances such as cement paste and mortar, the test probe cannot stand on its own and the test depth cannot be adjusted. The probe position stability is poor during the test and an additional support structure needs to be set up. The layout steps are cumbersome. In addition, when changing the position for testing, the cement-based material residues adhering to the outside of the probe need to be manually cleaned, which is inconvenient to use. Utility Model Content

[0004] The purpose of the present utility model is to provide an impedance spectrometer test probe in order to solve the above-mentioned problem. By detachably setting a positioning ring on the outside of the probe rod, the height-adjustable positioning ring is used as a supporting structure for supporting the probe rod on the surface of the object to be tested. The depth of the probe inserted into the object to be tested can be adjusted as needed, making the test more convenient. Details are described below.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides an impedance spectrometer test probe, comprising a positioning ring and a probe rod, wherein the probe rod vertically penetrates the positioning ring, a plurality of locking frames supporting the probe rod are arranged around the inner side of the positioning ring, and a scraper ring sleeved on the outer side of the probe rod is coaxially fixed to the bottom surface of the positioning ring;

[0007] A plurality of receiving grooves for accommodating the locking frame are arranged in the middle of the positioning ring, and guide holes are radially penetrated in the plurality of receiving grooves along the positioning ring. The locking frame includes a pressure block that slides with the receiving grooves, a support rod that extends laterally between the positioning ring and the probe rod is fixed in the middle of the pressure block, a splint is fixed on the inner end of the support rod, and a spring that pushes the splint against the outer wall of the probe rod is sleeved on the support rod outside the pressure block.

[0008] The above-mentioned impedance spectrometer test probe is used. When in use, the probe rod is supported by the positioning ring and extended into the material to be tested. The positioning ring is used to float on the surface of the material to be tested to keep the depth of the probe rod inserted into the material to be tested stable. When the height position of the positioning ring on the outside of the probe rod needs to be adjusted to change the depth of the probe rod inserted into the material to be tested, the synchronous ring is rotated under the support of the positioning ring, and the transmission groove extending obliquely on the synchronous ring is used to support multiple transmission rods to drive multiple groups of pressure blocks to slide outward synchronously, and the accommodating groove is used to guide the pressure blocks to slide away from the probe rod. At the same time, the spring is compressed, and the pressure block is used to drive the support rod and the clamping plate to separate from the probe rod. At this time, the support locking state of the multiple groups of clamping plates on the probe rod is released, and the length of the probe rod passing downward through the positioning ring is changed. The synchronous ring is then loosened to push the pressure block again to reset through the spring, and the pressure block is used to push the support rod so that the clamping plate at its end is again pressed against the outer circumference of the probe rod, thereby realizing the position locking action of the probe rod and the positioning ring.

[0009] Preferably, the clamping plate is an arc-shaped bent plate structure that fits the outer circumferential wall of the probe rod, and the support rod is gap-matched with the guide hole.

[0010] Preferably, a synchronization ring is arranged above the positioning ring, and a supporting ring for supporting the rotation of the synchronization ring is fixed on the top side of the positioning ring, and a plurality of transmission grooves are arranged on the synchronization ring corresponding to the locking frame, and the transmission grooves are obliquely extending arc grooves.

[0011] Preferably, a transmission rod vertically extending into the transmission groove is fixed to the top side of the pressing block, and the transmission rod is in clearance fit with the transmission groove, and a plurality of groups of surrounding side grooves are provided on the positioning ring outside the accommodating groove.

[0012] Preferably, a plurality of groups of holding grooves are arranged around the outer circumference of the synchronization ring, and the holding grooves are arc-shaped groove structures.

[0013] Preferably, a fixing ring supporting the scraper ring is fixed to the bottom side of the positioning ring, the scraper ring has an I-shaped cross section with a vertical hole in the center, the scraper ring is made of rubber, and the inner wall of the scraper ring is tightly pressed against the outer circumference of the probe rod.

[0014] Preferably, an annular mounting groove is coaxially arranged on the outer circumference of the scraper ring, and the bottom end of the fixing ring gathers inwards to snap into the mounting groove of the scraper ring.

[0015] Preferably, an upwardly extending power terminal is fixed to the top of the probe rod, and the positioning ring is made of plastic.

[0016] The beneficial effect is that: the utility model provides a detachable positioning ring on the outer side of the probe rod, and uses the height-adjustable positioning ring as a supporting structure for supporting the probe rod on the surface of the object to be tested, which facilitates the arrangement of the probe and ensures the support convenience of the probe testing process. At the same time, the depth of the probe inserted into the object to be tested can be adjusted as needed, making the test more convenient.

[0017] In addition, a scraper ring is arranged on the bottom side of the positioning ring and fits the outer circumference of the probe rod. After the test is completed, the positioning ring is used to support the scraper ring to slide downward, so as to scrape off the residue on the outside of the clean probe rod and clean the probe rod to change the test position, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is the main structural diagram of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the locking frame of the utility model;

[0023] Figure 5 It is a front cross-sectional view of the utility model;

[0024] Figure 6 yes Figure 5 A magnified view of the structure at A.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Positioning ring; 101. Fixing ring; 102. Accommodating groove; 103. Guide hole; 104. Side groove; 105. Supporting ring; 2. Probe rod; 201. Power terminal; 3. Locking frame; 301. Support rod; 302. Clamp plate; 303. Pressure block; 304. Spring; 305. Transmission rod; 4. Scraper ring; 401. Mounting groove; 5. Synchronous ring; 501. Transmission groove; 502. Holding groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0028] See also Figure 1-Figure 6 As shown, the utility model provides an impedance spectrometer test probe, including a positioning ring 1 and a probe rod 2, the probe rod 2 vertically penetrates the positioning ring 1, and a plurality of locking frames 3 supporting the probe rod 2 are arranged around the inner side of the positioning ring 1, and a scraper ring 4 sleeved on the outer side of the probe rod 2 is coaxially fixed to the bottom surface of the positioning ring 1. Specifically, the scraper ring 4 is made of rubber, and the inner wall of the scraper ring 4 is tightly pressed against the outer circumference of the probe rod 2, so that the scraper ring 4 can be supported by the positioning ring 1 to slide up and down on the outer side of the probe rod 2, so that the scraper ring 4 is used to scrape off the test material residue on the outer side of the probe rod 2, so that the test result can be affected by the residue after the probe rod 2 changes the test position;

[0029] A plurality of groups of receiving grooves 102 for receiving the locking frame 3 are arranged in the middle of the positioning ring 1, and guide holes 103 are radially penetrated in the plurality of groups of receiving grooves 102 along the positioning ring 1, the locking frame 3 includes a pressing block 303 that slides with the receiving groove 102, a strut 301 that extends laterally along the guide hole 103 to between the positioning ring 1 and the probe rod 2 is fixed in the middle of the pressing block 303, and the strut 301 and the guide hole 103 are clearance-matched, a splint 302 is fixed to the inner end of the strut 301, and a spring 304 that pushes the splint 302 against the outer wall of the probe rod 2 is sleeved on the strut 301 outside the pressing block 303, so as to clamp the probe rod 2 through the splint 302 arranged around the probe rod 2, thereby realizing the clamping and positioning of the positioning ring 1 on the outside of the probe rod 2.

[0030] As an optional embodiment, the clamping plate 302 is an arc-shaped bent plate structure that fits the outer circumferential wall of the probe rod 2 to ensure the fitting stability of the clamping plate 302 and the outer circumference of the probe rod 2. A synchronous ring 5 is arranged above the positioning ring 1, and a supporting ring 105 that supports the rotation of the synchronous ring 5 is fixed on the top side of the positioning ring 1. A plurality of transmission grooves 501 are arranged on the synchronous ring 5 corresponding to the locking frame 3. The transmission grooves 501 are obliquely extended arc-shaped grooves. A transmission rod 305 that vertically extends into the transmission groove 501 is fixed on the top side of the pressure block 303, and the transmission rod 305 and the transmission groove 501 are clearance-matched. A plurality of side grooves 104 that are distributed around and convenient for grasping are arranged on the positioning ring 1 outside the accommodating groove 102. By rotating the synchronous ring 5, the transmission grooves 501 can be used to drive the plurality of transmission rods 305 to slide synchronously along the accommodating groove 102, so as to change the tight supporting state of the inner pressure plate and the probe rod 2, and facilitate the adjustment of the length of the probe rod 2 extending downward from the positioning ring 1.

[0031] A plurality of groups of holding grooves 502 for easy grasping are arranged around the outer circumference of the synchronization ring 5, and the holding grooves 502 are arc-shaped groove structures. A fixing ring 101 supporting the scraper ring 4 is fixed on the bottom side of the positioning ring 1. The cross section of the scraper ring 4 is an "I" shape with a vertical hole in the center. An annular groove-shaped mounting groove 401 is coaxially arranged on the outer circumference of the scraper ring 4. The bottom end of the fixing ring 101 gathers inward to snap into the mounting groove 401 of the scraper ring 4 to ensure the installation stability of the scraper ring 4. An upwardly extending power terminal 201 is fixed on the top of the probe rod 2 to facilitate the connection of the test circuit of the impedance spectrometer through the power terminal 201. The positioning ring 1 is made of plastic to ensure that the positioning ring 1 can float on the surface of the cement-based material to be tested.

[0032] With the above structure, when in use, the probe rod 2 is supported by the positioning ring 1 to extend into the material to be tested, and the positioning ring 1 is used to float on the surface of the material to be tested to keep the depth of the probe rod 2 extending into the material to be tested stable. When the height position of the positioning ring 1 outside the probe rod 2 needs to be adjusted to change the depth of the probe rod 2 extending into the material to be tested, the synchronous ring 5 is rotated under the support of the positioning ring 1, and the transmission groove 501 extending obliquely on the synchronous ring 5 is used to support the multiple transmission rods 305 to drive the multiple groups of pressure blocks 303 to slide outward synchronously, and the receiving groove 102 is used to guide the pressure blocks 3 03 slides in the direction away from the probe rod 2, and at the same time, the spring 304 is compressed, and the pressure block 303 is used to drive the support rod 301 and the clamping plate 302 to separate from the probe rod 2. At this time, the support and locking state of the multiple groups of clamping plates 302 on the probe rod 2 is released, and the length of the probe rod 2 passing downward through the positioning ring 1 is changed. Then, the synchronization ring 5 is loosened to push the pressure block 303 again through the spring 304 to reset, and the pressure block 303 is used to push the support rod 301 so that the clamping plate 302 at its end is again pressed against the outer circumference of the probe rod 2, thereby realizing the position locking action of the probe rod 2 and the positioning ring 1;

[0033] By detachably setting a positioning ring 1 on the outside of the probe rod 2, the positioning ring 1 with adjustable height is used as a supporting structure for supporting the probe rod 2 on the surface of the object to be tested, which facilitates the arrangement of the probe and ensures the support convenience during the probe testing process. At the same time, the depth of the probe inserted into the object to be tested can be adjusted as needed, making the test more convenient.

[0034] In addition, a scraper ring 4 is arranged on the bottom side of the positioning ring 1 to fit the outer circumference of the probe rod 2. After the test is completed, the positioning ring 1 is used to support the scraper ring 4 to slide downward, so as to scrape and clean the external residue of the probe rod 2, and to clean the probe rod 2 to change the test position, which is highly practical.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An impedance spectrometer test probe, characterized in that: It comprises a positioning ring (1) and a probe rod (2), wherein the probe rod (2) vertically penetrates the positioning ring (1), a plurality of locking frames (3) supporting the probe rod (2) are arranged around the inner side of the positioning ring (1), and a scraper ring (4) sleeved on the outer side of the probe rod (2) is coaxially fixed to the bottom surface of the positioning ring (1); The positioning ring (1) is provided with a plurality of groups of receiving grooves (102) for receiving the locking frame (3) in the middle thereof, and each of the plurality of groups of receiving grooves (102) is penetrated with a guide hole (103) radially along the positioning ring (1); the locking frame (3) comprises a pressing block (303) which is slidably matched with the receiving groove (102); a support rod (301) which extends transversely between the positioning ring (1) and the probe rod (2) is fixed in the middle of the pressing block (303); a clamping plate (302) is fixed at the inner end of the support rod (301); and a spring (304) which pushes the clamping plate (302) against the outer wall of the probe rod (2) is sleeved on the support rod (301) outside the pressing block (303).

2. The impedance spectrometer test probe according to claim 1, characterized in that: The clamping plate (302) is an arc-shaped bent plate structure that fits the outer circumferential wall of the probe rod (2), and the support rod (301) is clearance-matched with the guide hole (103).

3. The impedance spectrometer test probe according to claim 2, characterized in that: A synchronization ring (5) is arranged above the positioning ring (1), and a support ring (105) for supporting the synchronization ring (5) to rotate is fixed on the top side of the positioning ring (1). The synchronization ring (5) is provided with a plurality of groups of transmission grooves (501) corresponding to the locking frame (3), and the transmission grooves (501) are arc-shaped grooves extending obliquely.

4. The impedance spectrometer test probe according to claim 3, characterized in that: A transmission rod (305) is fixed on the top side of the pressing block (303) and extends vertically into the transmission groove (501), and the transmission rod (305) is clearance-matched with the transmission groove (501). A plurality of groups of surrounding side grooves (104) are arranged on the positioning ring (1) outside the accommodating groove (102).

5. The impedance spectrometer test probe according to claim 4, characterized in that: A plurality of groups of holding grooves (502) are arranged around the outer circumference of the synchronization ring (5), and the holding grooves (502) are arc-shaped groove structures.

6. The impedance spectrometer test probe according to claim 1, characterized in that: A fixing ring (101) supporting the scraper ring (4) is fixed to the bottom side of the positioning ring (1); the scraper ring (4) has an I-shaped cross section with a vertical hole in the center; the scraper ring (4) is made of rubber, and the inner wall of the scraper ring (4) is tightly pressed against the outer circumference of the probe rod (2).

7. The impedance spectrometer test probe according to claim 6, characterized in that: The scraper ring (4) is coaxially provided with an annular groove-shaped mounting groove (401) on its outer circumference, and the bottom end of the fixing ring (101) is gathered inwardly to be snap-fitted and extend into the mounting groove (401) of the scraper ring (4).

8. The impedance spectrometer test probe according to claim 7, characterized in that: An upwardly extending power terminal (201) is fixed to the top of the probe rod (2), and the positioning ring (1) is made of plastic.

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