A device for clamping a laser probe of a toluene insoluble tester

Abstract

A kind of laser probe clamping device for toluene insoluble tester, including flat bottom flask, extraction cylinder, condenser, probe fixing clamp, first half clamp, second half clamp, pin shaft, split pin, V-shaped rubber strip, arc rubber strip, laser probe, the lower part of the condenser is connected with the extraction cylinder, the lower part of the extraction cylinder is connected with the flat bottom flask, the probe fixing clamp includes the first half clamp, the second half clamp, the laser probe is connected with the first half clamp, the first half clamp has first lug, the second half clamp has second lug, the second lug is attached to the first lug, the pin shaft passes through the second lug, the first lug in turn, the pin shaft rotates in the second lug, the first lug, the split pin passes through the pin shaft, the double torsion spring is sleeved on the pin shaft, the double torsion spring is placed between the first half clamp and the second half clamp, the upper end of the double torsion spring is in contact with the second half clamp, and the lower end of the double torsion spring is in contact with the first half clamp.

Description

Technical Field

[0001] This utility model relates to the field of toluene insoluble matter determination, and in particular to a laser probe clamping device for a toluene insoluble matter analyzer. Background Technology

[0002] With the trend towards automation in chemical experiments, the toluene insoluble matter analyzer shown in the national standard GB / T2292-2018 requires the use of a laser probe to replace manual measurement of liquid reflux times. The laser probe needs to be fixed in position by a clamping device. Traditional rubber clamps are bulky, and due to the large tolerance of glassware, the volume of the rubber clamp on some instruments is larger than the assembly volume, resulting in poor versatility of the clamping device. Furthermore, repeated disassembly and reassembly with screws can cause rubber breakage. The heavy weight can cause the rubber clamp to tilt vertically over a long period of time, leading to inaccurate probe detection. The lack of obstruction at the front end can cause interference when operating the instrument at close range. Summary of the Invention

[0003] This invention addresses the aforementioned shortcomings of the existing technology by providing a laser probe clamping device for a toluene insoluble matter analyzer, which uses a second half-clamp end face to shield the extraction tube side, ensuring that signal acquisition is not interfered with when operating the instrument at close range.

[0004] The objective of this utility model is achieved through the following technical solution: A laser probe clamping device for a toluene insoluble matter analyzer includes a flat-bottomed flask, an extraction cylinder, a condenser, a probe fixing clamp, a first half-clamp, a second half-clamp, a pin, a cotter pin, a V-shaped adhesive strip, an arc-shaped adhesive strip, and a laser probe. The lower part of the condenser is connected to the extraction cylinder, and the lower part of the extraction cylinder is connected to the flat-bottomed flask. The probe fixing clamp includes a first half-clamp and a second half-clamp. The laser probe is connected to the first half-clamp. The first half-clamp has a first convex plate, and the second half-clamp has a second convex plate. The second convex plate is in contact with the first convex plate. The pin passes through the second convex plate and the first convex plate in sequence and rotates within the second convex plate and the first convex plate. The cotter pin passes through the pin. A double torsion spring is sleeved on the pin and placed between the first half-clamp and the second half-clamp. The upper end of the double torsion spring abuts against the second half-clamp, and the lower end of the double torsion spring abuts against the first half-clamp.

[0005] The lower part of the second half-clamp has a set of arc-shaped grooves, and the arc-shaped rubber strips are adapted to the arc-shaped grooves and connected to the arc-shaped grooves. A set of arc-shaped rubber strips are distributed on the second half-clamp. The upper part of the first half-clamp has a set of V-shaped grooves, and the V-shaped rubber strips are adapted to the V-shaped grooves and connected to the V-shaped grooves. A set of V-shaped rubber strips are distributed on the V-shaped grooves.

[0006] The extraction tube has an extraction tube branch tube, one end of which is attached to an arc-shaped rubber strip, and the other end of which is attached to a V-shaped rubber strip. Beneficial effects

[0007] 1. In this utility model, a pin passes sequentially through the second convex plate and the first convex plate, connecting the first and second half-clamps, allowing them to rotate relative to each other. A double torsion spring is fitted onto the pin, which centers the spring. The two ends of the double torsion spring abut against the first and second half-clamps, applying an elastic thrust. The abutment points of the double torsion spring against the first and second half-clamps are located on the left side of the pin, allowing the right sides of the first and second half-clamps to rotate towards each other. The pin is fixed to the sides of the first and second half-clamps by a cotter pin. (This is used in the determination of toluene insoluble matter.) To prevent the pin from slipping out of the second and first convex plates during laser probe clamping, an arc-shaped adhesive strip is bonded and fixed to the arc-shaped groove, and a V-shaped adhesive strip is bonded and fixed to the V-shaped groove. The first and second half-clamps form a probe fixing clamp. In use, press the rear end of the probe fixing clamp, align the right side of the extraction tube branch with the V-shaped adhesive strip and the arc-shaped adhesive strip, and clamp the probe fixing clamp onto the extraction tube branch. The V-shaped adhesive strip uses the V-block fixing principle to accurately position the extraction tube branch, ensuring that the extension line of the laser probe axis constantly passes through the axis of the extraction tube branch, thus detecting toluene insoluble matter inside the extraction tube branch.

[0008] 2. This utility model employs an arc-shaped groove with a radius larger than that of the extraction tube branch pipe, ensuring that the clamping force remains near the diagonal of the V-shaped groove. This guarantees comprehensive clamping of the extraction tube branch pipe. In the clamping of the laser probe of the toluene insoluble matter analyzer, it prevents the clamping force from being insufficiently concentrated on the surface of the extraction tube branch pipe when the radius of the extraction tube branch pipe is larger than the radius of the arc-shaped groove. A thin-walled design reduces weight, ensuring stable clamping and preventing tail-end sinking. Rigid materials replace flexible rubber, and double torsion springs maintain the clamping force, ensuring that the probe clamp will not loosen due to material softening caused by heating. The design further enhances the reliability of clamping and ensures the accuracy of signal acquisition. The second half-clamp end face shields the opposite side of the extraction tube branch, preventing interference with signal acquisition when operating the instrument at close range. The V-shaped and arc-shaped rubber strips prevent wear on glassware caused by the hard surfaces of the V-shaped and arc-shaped grooves. The thin-walled clamping design effectively solves the problem of assembly failure caused by distance errors between the extraction tube body and the extraction tube branch due to the excessive size of the heavy V-shaped block. The double torsion spring clamping design has strong tolerance for diameter errors of the extraction tube branch, greatly enhancing the interchangeability between products. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a laser probe clamping device for a toluene insoluble matter analyzer according to the present invention.

[0010] Figure 2 This is a top view of the first and second half-clamps described in this utility model.

[0011] Figure 3This is a bottom view of the first and second half-clamps described in this utility model.

[0012] Figure 4 This is a front view of a laser probe clamping device for a toluene insoluble matter analyzer according to the present invention.

[0013] Figure 5 This is a side view of a laser probe clamping device for a toluene insoluble matter analyzer according to the present invention.

[0014] Figure 6 This is a cross-sectional view of a laser probe clamping device for a toluene insoluble matter analyzer according to the present invention. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Example 1: A laser probe clamping device for a toluene insoluble matter analyzer includes a flat-bottomed flask 01, an extraction cylinder 02, a condenser 03, a probe fixing clamp 04, a first half-clamp 05, a second half-clamp 06, a pin 07, a cotter pin 08, a V-shaped adhesive strip 10, an arc-shaped adhesive strip 12, and a laser probe 14. The lower part of the condenser 03 is connected to the extraction cylinder 02, and the lower part of the extraction cylinder 02 is connected to the flat-bottomed flask 01. The probe fixing clamp 04 includes a first half-clamp 05 and a second half-clamp 06. The laser probe 14 is connected to the first half-clamp 05. The first half-clamp 05 has a first convex plate 17, and the second half-clamp 06 has a second convex plate 16. The second convex plate 16 is in contact with the first convex plate 17. The pin 07 passes sequentially through the second convex plate 16 and the first convex plate 17, and rotates within the second convex plate 16 and the first convex plate 17. The first half-clamp 05 and the second half-clamp 06 are connected by the pin 07, thus connecting the first half-clamp 05 and the second half-clamp 06. Relative rotation is possible. A cotter pin 08 passes through a pin 07, which is fixed to the sides of the first half-clamp 05 and the second half-clamp 06 by the cotter pin 08. This prevents the pin 07 from sliding off the second convex plate 16 and the first convex plate 17 during the clamping of the laser probe of the toluene insoluble matter analyzer. A double torsion spring 13 is fitted onto the pin 07, providing center positioning for the double torsion spring 13. The double torsion spring 13 is positioned within the first half-clamp 05 and the second half-clamp 06. Between the two halves of the clamp 06, the upper end of the double torsion spring 13 abuts against the second half of the clamp 06, the lower end of the double torsion spring 13 abuts against the first half of the clamp 05, and both ends of the double torsion spring 13 abut against the first half of the clamp 05 and the second half of the clamp 06, so that the double torsion spring 13 applies an elastic thrust to the first half of the clamp 05 and the second half of the clamp 06. The abutting points of both ends of the double torsion spring 13 against the first half of the clamp 05 and the second half of the clamp 06 are located on the left side of the pin 07, so that the right sides of the first half of the clamp 05 and the second half of the clamp 06 rotate towards each other.

[0016] Example 2: The second half-clamp 06 of this utility model has a set of arc-shaped grooves 11 at its lower part, and arc-shaped adhesive strips 12 are adapted to the arc-shaped grooves 11 and connected to the arc-shaped grooves 11. A set of arc-shaped adhesive strips 12 are distributed on the second half-clamp 06. The first half-clamp 05 has a set of V-shaped grooves 09 at its upper part, and V-shaped adhesive strips 10 are adapted to the V-shaped grooves 09 and connected to the V-shaped grooves 09. A set of V-shaped adhesive strips 10 are distributed on the V-shaped grooves 09. Arc-shaped adhesive strips 12 are bonded and fixed on the arc-shaped grooves 11, and V-shaped adhesive strips 10 are bonded and fixed on the V-shaped grooves 09. The first half-clamp 05 and the second half-clamp 06 form a probe fixing clamp 04.

[0017] Example 3: The extraction tube 02 of this utility model has an extraction tube branch tube 15. One end of the extraction tube branch tube 15 is attached to the arc-shaped rubber strip 12, and the other end of the extraction tube branch tube 15 is attached to the V-shaped rubber strip 10. In use, press the rear end of the probe fixing clip 04, align the right side of the extraction tube branch tube 15 of the extraction tube 02 between the V-shaped rubber strip 10 and the arc-shaped rubber strip 12, and clamp the probe fixing clip 04 on the extraction tube branch tube 15. The V-shaped rubber strip 10 adopts the V-block fixing principle to fix the extraction tube branch tube. The tube 15 is accurately positioned so that the extended axis of the laser probe 14 constantly passes through the axis of the extraction tube 15, allowing for the detection of toluene-insoluble matter within the extraction tube 15. The arc-shaped groove 11 uses a radius larger than that of the extraction tube 15, ensuring that the clamping force always hovers near the diagonal of the V-groove 09, guaranteeing complete clamping of the extraction tube 15. This prevents damage to the extraction tube 15 when the radius of the extraction tube 15 is larger than the radius of the arc-shaped groove 11 during the clamping of the laser probe of the toluene-insoluble matter analyzer. The clamping force of the extraction tube 15 cannot be concentrated on the surface of the extraction tube 15. A thin-walled design is adopted to reduce weight, stabilize the clamping, and prevent tail sinking. Rigid materials replace flexible rubber, and double torsion springs 13 maintain the clamping force to ensure that the probe fixing clamp 04 will not loosen due to material softening caused by heating, further enhancing the reliability of clamping and ensuring the accuracy of signal acquisition. The second half-clamp 06 end face shielding the opposite side of the extraction tube 15 ensures that signal acquisition will not be interfered with when operating the instrument at close range. V-shaped rubber strips 10 and arc-shaped rubber strips 12 avoid the wear of glassware by the hard surfaces of V-shaped grooves 09 and arc-shaped grooves 11. The thin-walled clamping design effectively solves the problem of assembly failure caused by the excessive size of the heavy V-shaped block and the distance error between the extraction tube 02 body and the extraction tube 15. The double torsion spring 13 clamping design has strong tolerance for the diameter error of the extraction tube 15, greatly enhancing the interchangeability between products.

[0018] Installation steps: First, attach the first convex plate 17 and the second convex plate 16 together. Then, pass the pin 07 through the second convex plate 16 and the first convex plate 17 in sequence. Pass the pin 07 through the double torsion spring 13 so that the two ends of the double torsion spring 13 abut against the first half clamp 05 and the second half clamp 06 respectively. Pass the cotter pin 08 through the pin 07 and bend the opening of the cotter pin 08. Connect the arc-shaped rubber strip 12 to the arc-shaped groove 11 and the V-shaped rubber strip 10 to the V-shaped groove 09. Install the laser probe 14 on the first half clamp 05 and clamp the probe fixing clip 04 on the extraction tube branch pipe 15.

[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A laser probe clamping device for a toluene insoluble matter analyzer, characterized in that: The system includes a flat-bottomed flask (01), an extraction tube (02), a condenser (03), a probe clamp (04), a first half-clamp (05), a second half-clamp (06), a pin (07), a cotter pin (08), a V-shaped adhesive strip (10), an arc-shaped adhesive strip (12), and a laser probe (14). The lower part of the condenser (03) is connected to the extraction tube (02), and the lower part of the extraction tube (02) is connected to the flat-bottomed flask (01). The probe clamp (04) includes a first half-clamp (05) and a second half-clamp (06). The laser probe (14) is connected to the first half-clamp (05), and the first half-clamp (05) has a first convex plate (1). 7) The second half-clamp (06) has a second convex plate (16), which is in contact with the first convex plate (17). The pin (07) passes through the second convex plate (16) and the first convex plate (17) in sequence. The pin (07) rotates in the second convex plate (16) and the first convex plate (17). The cotter pin (08) passes through the pin (07). The double torsion spring (13) is sleeved on the pin (07). The double torsion spring (13) is placed between the first half-clamp (05) and the second half-clamp (06). The upper end of the double torsion spring (13) abuts against the second half-clamp (06), and the lower end of the double torsion spring (13) abuts against the first half-clamp (05).

2. The laser probe clamping device for a toluene insoluble matter analyzer according to claim 1, characterized in that: The second half-clamp (06) has a set of arc-shaped grooves (11) at the lower part, and arc-shaped rubber strips (12) are adapted to the arc-shaped grooves (11). The arc-shaped rubber strips (12) are connected to the arc-shaped grooves (11), and a set of arc-shaped rubber strips (12) are distributed on the second half-clamp (06).

3. The laser probe clamping device for a toluene insoluble matter analyzer according to claim 2, characterized in that: The upper part of the first half clamp (05) has a set of V-grooves (09), the V-grooves (10) are adapted to the V-grooves (09), the V-grooves (10) are connected to the V-grooves (09), and a set of V-grooves (10) are distributed on the V-grooves (09).

4. A laser probe clamping device for a toluene insoluble matter analyzer according to claim 2, characterized in that: The extraction tube (02) has an extraction tube branch tube (15), one end of which is attached to the arc-shaped rubber strip (12), and the other end of which is attached to the V-shaped rubber strip (10).

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