CN219284985U

CN219284985U - Sample fixture

Info

Publication number: CN219284985U
Application number: CN202223610006.XU
Authority: CN
Inventors: 张�杰; 邱康勇
Original assignee: Shenzhen Institute Of Quality And Safety Inspection And Testing
Current assignee: Shenzhen Institute Of Quality And Safety Inspection And Testing
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-30
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a sample clamp, which comprises a base, a bracket and a clamping device, wherein the base is used for being arranged on an excitation table of a direct-reading spectrometer, a detection port is penetrated on the base and is used for being arranged corresponding to the excitation port of the direct-reading spectrometer; the support comprises a support column arranged on the base and a cross beam arranged on the top of the support column; the clamping device is arranged at the position of the cross beam corresponding to the detection port and used for clamping the sample. The utility model aims to solve the problem that the current direct-reading spectrometer cannot detect or inaccurately detect small metal samples (such as steel wires and bolts with smaller diameters).

Description

Sample fixture

Technical Field

The utility model relates to the technical field of detection auxiliary devices, in particular to a sample clamp.

Background

Currently, direct-reading spectrometers are the mainstream devices for fast and accurate measurement of metal solid samples, but there are also some problems that the existing components on the devices have certain requirements on the size of the metal solid samples, i.e. the size of the metal solid samples cannot be too small. At present, detection of small-size metal solid samples is mainly carried out through a plasma emission spectrometer, but the equipment is high in price (hundreds of thousands yuan), and the sample pretreatment procedure is complex, so that the equipment has a certain chemical professional background for operators.

Disclosure of Invention

The utility model mainly aims to provide a sample clamp, which aims to solve the problem that a small metal sample (such as a steel wire with smaller diameter and a bolt) cannot be detected or is not accurately detected by a direct-reading spectrometer at present.

To achieve the above object, the present utility model provides a sample holder, wherein the sample holder comprises:

the base is used for being arranged on an excitation table of the direct-reading spectrometer, and a detection port is arranged on the base in a penetrating manner and is used for being arranged corresponding to the excitation port of the direct-reading spectrometer;

the bracket comprises a support column arranged on the base and a cross beam arranged on the top of the support column; the method comprises the steps of,

and the clamping device is arranged at the position of the cross beam corresponding to the detection port and used for clamping the sample.

Optionally, the clamping device includes:

the telescopic mechanism can be arranged on the cross beam in an up-and-down telescopic way; the method comprises the steps of,

the clamping mechanism is arranged at the lower end of the telescopic mechanism.

Optionally, the telescopic mechanism includes:

the sleeve is arranged on the cross beam, the lower end of the sleeve is provided with an opening extending up and down, and the side part of the sleeve is provided with a locking hole communicated with the opening;

the movable rod is arranged in the open hole in a vertically movable way; the method comprises the steps of,

the locking structure is arranged in the locking hole in a penetrating way and used for propping and locking the movable rod in the opening hole.

Optionally, the clamping mechanism includes:

the main body is arranged at the lower end of the telescopic mechanism, the lower end of the main body is provided with a containing hole, the containing hole is used for a sample to extend in, and the side part of the main body is provided with a fixing hole communicated with the containing hole; the method comprises the steps of,

and the fixing structure is penetrated through the fixing hole and used for propping and fixing the sample in the accommodating hole.

Optionally, a rail extending along the length direction of the cross beam is arranged on the cross beam, and the clamping device can be movably mounted on the rail.

Optionally, a positioning structure is provided on the rail, the positioning structure acting on the clamping device to position it on the rail.

Optionally, a movable groove extending along the length direction of the cross beam is vertically penetrated through the cross beam to form the track, a locking groove extending along the extending direction of the movable groove is penetrated through the groove wall at one side of the movable groove, and the positioning structure is movably arranged in the locking groove;

the clamping device extends into the movable groove and can move along the extending direction of the movable groove;

the positioning structure is arranged corresponding to the clamping device so as to tightly support and fix the clamping device.

Optionally, a limiting groove extending along the extending direction of the two side groove walls of the movable groove is formed, and a supporting structure extending into the limiting groove is convexly arranged at the top edge of the clamping device, and the supporting structure abuts against the limiting groove to support the clamping device.

Optionally, a gasket is installed at the detection port, and a through hole is formed in the middle of the gasket in a penetrating manner.

Optionally, the via size is configured to correspond to a sample size.

According to the technical scheme, the sample clamp is arranged at the excitation port of the direct-reading spectrometer and used for clamping and fixing the small-size metal solid sample (such as a steel wire and a bolt with smaller diameters), so that the detection requirement of the small-size metal solid sample is met by directly using the direct-reading spectrometer, the detection flow is simplified, and the detection cost is reduced. Specifically, through clamping device stabilizes centre gripping small-size metal solid-state sample, and through the support suspension is in order to satisfy the detection demand in the excitation mouth top of direct-reading spectrometer, simultaneously, the support is fixed in the base, the base is installed in direct-reading spectrometer to this guarantee sample holder's stability, and then guarantee sample detection's stability.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a sample holder according to the present utility model;

FIG. 2 is a schematic plan view of FIG. 1;

fig. 3 is a schematic cross-sectional view of the beam of fig. 1.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Sample fixture	3	Clamping device
1	Base seat	31	Telescopic mechanism
				11	Detection port	311	Casing pipe
2	Support frame	312	Movable rod
				21	Support column	313	Locking structure
22	Cross beam	314	Supporting structure
				221	Movable groove	32	Clamping mechanism
222	Positioning structure	321	Main body
				223	Locking groove	322	Fixing structure
224	Limiting groove	4	Gasket

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In view of this, the present utility model provides a sample holder, and fig. 1 to 3 are views showing an embodiment of the sample holder according to the present utility model, and the sample holder will be described with reference to the specific drawings.

Referring to fig. 1 to 3, the sample fixture 100 includes a base 1, a bracket 2, and a clamping device 3, wherein the base 1 is configured to be mounted on an excitation table of a direct-reading spectrometer, and a detection port 11 is disposed on the base 1 in a penetrating manner, and the detection port 11 is configured to be disposed corresponding to the excitation port of the direct-reading spectrometer; the bracket 2 comprises a support column 21 mounted on the base 1 and a cross beam 22 mounted on the top of the support column 21; the clamping device 3 is mounted on the beam 22 at a position corresponding to the detection port 11, and is used for clamping a sample.

According to the technical scheme, the sample clamp 100 is arranged at the excitation port of the direct-reading spectrometer and is used for clamping and fixing small-size metal solid samples (such as steel wires and bolts with smaller diameters), so that the detection requirement of the small-size metal solid samples can be met by directly using the direct-reading spectrometer, the detection process is simplified, and the detection cost is reduced. Specifically, through clamping device 3 stabilizes centre gripping small-size metal solid-state sample, and through support 2 suspension is in direct-reading spectrometer's excitation mouth top in order to satisfy the detection demand, simultaneously, support 2 is fixed in base 1, base 1 installs in direct-reading spectrometer to this guarantee sample anchor clamps 100's stability, and then guarantee sample detection's stability.

Specifically, the clamping device 3 includes a telescopic mechanism 31 and a clamping mechanism 32, and the telescopic mechanism 31 is mounted on the beam 22 in a manner of being telescopic up and down; the clamping mechanism 32 is mounted at the lower end of the telescopic mechanism 31. It will be appreciated that when detecting a sample, the sample needs to be as close to the excitation port of the direct-reading spectrometer as possible, at this time, on the one hand, the lengths of the samples to be detected are different, and on the other hand, in order to facilitate sample installation, a certain installation space is reserved between the sample and the base 1, and in this embodiment, the telescopic mechanism 31 is provided, so that the height of the clamping mechanism 32 can be adjusted, and then the distance between the sample and the base 1 can be adjusted, thereby meeting the adjustment of the height of the sample, facilitating the installation of the sample and meeting the detection of samples with different lengths.

Specifically, the telescopic mechanism 31 includes a sleeve 311, a movable rod 312, and a locking structure 313, where the sleeve 311 is mounted on the cross beam 22, a hole extending up and down is formed at the lower end of the sleeve 311, and a locking hole communicating with the hole is formed at the side of the sleeve 311; the movable rod 312 is movably installed in the opening hole up and down; the locking structure 313 is inserted into the locking hole and used for tightly locking the movable rod 312 in the opening. The specific structure of the telescopic mechanism 31 may be various, including a hydraulic telescopic rod, a screw structure of a finished product, etc., and may achieve a telescopic function, which is not limited herein, in this embodiment, the movable rod 312 is adopted to penetrate through the sleeve 311, and the movable rod 312 may be movable up and down in the sleeve 311, so as to achieve the telescopic function of the telescopic mechanism 31, which is simple in structure and low in cost. Meanwhile, the movable rod 312 may be positioned and fixed in the sleeve 311 by friction between the movable rod 312 and the inner wall of the sleeve 311, but the reliability is obviously poor, so the locking structure 313 is provided in this embodiment, and the movable rod 312 is positioned and locked by penetrating the locking structure 313 into the locking hole on the side of the sleeve 311 to abut against the movable rod 312 in the sleeve 311, and specifically, the locking structure 313 is provided as a screw, and the abutment of the screw against the movable rod 312 is realized by screwing the screw into the locking hole.

In addition, the clamping mechanism 32 includes a main body 321 and a fixing structure 322, the main body 321 is mounted at the lower end of the telescopic mechanism 31, a receiving hole is formed at the lower end of the main body 321, the receiving hole is used for the sample to extend in, and a fixing hole communicating with the receiving hole is formed at the side of the main body 321; the fixing structure 322 is disposed through the fixing hole and is used for tightly supporting and fixing the sample in the accommodating hole. Through the holding hole with the combination of fixed knot structure 322 realizes fixing the sample, and on the one hand the sample size is little, can wear to locate in the holding hole, and the holding hole can be spacing to stretching into its inside sample, avoids its skew and slope, can ensure the stability of sample centre gripping, on the other hand, fixed knot structure 322 wears to locate the fixed hole is fixed in order to support in the sample, simple structure, and is with low costs. Specifically, in this embodiment, the fixing structure 322 is also configured as a screw structure, so as to be screwed into the fixing hole, so as to achieve the holding and fixing of the sample.

Furthermore, the cross member 22 is provided with a rail extending in the longitudinal direction thereof, and the holding device 3 is movably mounted on the rail. Avoid because of the size error of manufacturing process causes the unable condition to be located the excitation mouth of direct-reading spectrometer of sample, also simplify the size design of crossbeam 22 need not to accurately set up the hole site in order to install clamping device 3, in this embodiment set up on the crossbeam 22 the track is counterpointed by the manual work, so set up to reduce the design manufacturing cost of sample anchor clamps 100, and can satisfy the position adjustment to special-shaped sample simultaneously to satisfy the detection demand, more practicality.

In particular, the rail is provided with a positioning structure 222, which positioning structure 222 acts on the clamping device 3 to position it on the rail. The clamping device 3 may be positioned by friction with the rail, but the reliability is poor, so in this embodiment, the positioning structure 222 is disposed on the rail to assist the positioning of the clamping device 3, so as to improve the positioning stability of the clamping device 3.

Specifically, the cross beam 22 is vertically perforated with a movable slot 221 extending along the length direction thereof to form the track, a locking slot 223 extending along the extending direction of the movable slot 221 is perforated on a slot wall at one side of the movable slot 221, and the positioning structure 222 is movably disposed in the locking slot 223; the clamping device 3 extends into the movable groove 221 and can move along the extending direction of the movable groove 221; the positioning structure 222 is disposed corresponding to the clamping device 3, so as to tightly support and fix the clamping device 3. The track may be a finished track, that is, a finished track is directly mounted on the beam 22 to realize the movement of the clamping device 3, but obviously has higher cost, in this embodiment, a movable groove 221 is directly penetrating on the beam 22, a nut is movably disposed in the movable groove 221, and a screw is screwed to the nut to limit the movement direction of the clamping device 3, so as to realize the limit function of the track.

Further, both side walls of the movable slot 221 are provided with a limiting slot 224 extending along the extending direction, a supporting structure 314 extending into the limiting slot 224 is protruding from the top edge of the clamping device 3, and the supporting structure 314 abuts against the limiting slot 224 to support the clamping device 3. In order to facilitate the use of the clamping device 3, when the positioning structure 222 is not in operation, the clamping device can be stably placed in the movable groove 221, in this embodiment, the supporting structures 314 are disposed on two sides of the top of the clamping device 3, so that the supporting structures 314 are supported in the limiting grooves 224, thereby supporting the clamping device 3, and not affecting the movement of the clamping device 3 along the movable groove 221.

In addition, the gasket 4 is installed at the detection port 11, and a through hole is formed in the middle of the gasket 4 in a penetrating manner. On the one hand, the damage of the excitation port of the direct-reading spectrometer to the base 1 is avoided, the service life of the base 1 is influenced, on the other hand, the excitation of the base 1 by the excitation port is avoided, and the detection result of a sample is influenced.

Specifically, the via size is configured to correspond to a sample size. In order to avoid that a gap exists between the sample and the pad 4 and influence the detection result of the sample, the size of the via hole is required to be kept consistent with the size of the sample, and in order to meet the above requirement, it can be understood that a plurality of pads 4 with different sizes of the via hole are arranged to meet different detection requirements.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A specimen holder, comprising:

2. The specimen holder of claim 1, wherein the clamping means comprises:

3. The specimen holder of claim 2, wherein the telescoping mechanism comprises:

4. The specimen holder of claim 2, wherein the clamping mechanism comprises:

5. A sample holder as claimed in claim 1, wherein the cross member is provided with a track extending along its length, the clamping means being movably mounted to the track.

6. The specimen grip of claim 5, wherein the rail is provided with a positioning structure that acts on the gripping device to position it in the rail.

7. The sample holder according to claim 6, wherein the cross beam is provided with a movable slot extending along the length direction thereof in a penetrating manner so as to form the track, a locking slot extending along the extending direction of the movable slot is formed in a wall of one side of the movable slot in a penetrating manner, and the positioning structure is movably arranged in the locking slot;

8. The sample holder according to claim 7, wherein the two side walls of the movable groove are provided with a limiting groove extending along the extending direction of the movable groove, and a supporting structure extending into the limiting groove is arranged on the top edge of the clamping device in a protruding manner, and the supporting structure abuts against the limiting groove to support the clamping device.

9. The sample holder of claim 1, wherein a spacer is mounted at the detection port and a through hole is formed in the middle of the spacer.

10. The sample holder of claim 9, wherein the via size is configured to correspond to a sample size.