CN220819829U

CN220819829U - Handheld refractometer device

Info

Publication number: CN220819829U
Application number: CN202322521406.1U
Authority: CN
Inventors: 董明
Original assignee: Liaoning Dongshi Technology Group Co ltd
Current assignee: Liaoning Dongshi Technology Group Co ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2024-04-19
Anticipated expiration: 2033-09-18

Abstract

The utility model discloses a handheld refractometer device, which relates to the technical field of refractometers and comprises a detection mechanism, wherein the left side of the detection mechanism is connected with the handheld mechanism in a threaded manner, the left side of the handheld mechanism is connected with an observation mechanism in a threaded manner, the detection mechanism comprises a detection tube, the right side of the detection tube is detachably connected with a clamping ring, a detection prism is fixedly arranged in the clamping ring, the middle part of the outer wall of the detection tube is movably sleeved with a ferrule, the bottom of the ferrule is connected with a fastening bolt in a threaded manner, a cover plate is hinged between the top inner walls of the ferrules, one end of the cover plate rotates at the top of the ferrule, and an adjusting screw is arranged on the left side of the ferrule. According to the utility model, through the design of the observation mechanism, when detection and observation are carried out, the protective sleeve is screwed off the connecting convex ring for observation reading, and after reading is finished, the protective sleeve is screwed on the connecting convex ring for isolating the ocular from external dust, so that dust is prevented from being stained on the ocular, the ocular of the device is clear, and the measurement accuracy is high.

Description

Handheld refractometer device

Technical Field

The utility model relates to the technical field of refractometers, in particular to a handheld refractometer device.

Background

The refractometer is a detection instrument manufactured according to the optical principle. The hand-held detecting instrument is manufactured by displaying the concentration of the measured solution through conversion according to the optical principle that the refractive index of the light after passing through the solution has a corresponding relation with the concentration of the solution. When using a handheld refractometer, the solution is first dropped onto the detection prism and then uniformly flattened through the translucent cover plate. After passing through the semitransparent cover plate, the solution to be detected and the detection prism, the light rays generate optical effects such as refraction and diffuse reflection, the light rays are irradiated to the scale marks in the telescope tube and the outer sleeve, a user can read out the numerical values on the scale marks through the ocular, and the unit numerical values of the scale marks are the actual numerical values of the content of the substances measured by the refractometer after being precisely calculated according to the optical principle and the mathematical theory.

The patent publication No. CN107677643B discloses a handheld refractometer which comprises a handheld refractometer host, a first knife and a second knife; the surface of the handheld refractometer main unit is provided with a drainage ditch, a measuring groove and a cavity part protruding outwards, the drainage ditch extends from the front end of the handheld refractometer main unit to the measuring groove direction and penetrates through the measuring groove, and the cavity part is communicated with one end of the drainage ditch, which is close to the rear end of the handheld refractometer main unit; the first knife comprises a first knife body and a first knife handle connected with the rear end of the first knife body, and the first knife handle is fixed at the front end of the handheld refractometer host; the second knife comprises a second knife body and a second knife handle connected with the rear end of the second knife body, and the second knife handle is hinged with the side face of the handheld refractometer host.

In order to solve the problem that a special preparation device is not available in the field generally, juice test samples cannot be obtained, the prior art adopts a mode that melon juice and fruit juice in a cavity body are led to a measuring groove of a handheld refractometer host through a drainage groove for treatment, but the condition that dust is easy to adhere to an ocular lens can also occur, and further the problem that the actually measured data cannot be directly influenced by a clearly read numerical value is caused.

Disclosure of utility model

The present utility model is directed to a handheld refractometer device, which solves the above-mentioned problems of the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a hand-held type refractometer device, includes detection mechanism, detection mechanism's left side threaded connection has handheld mechanism, handheld mechanism's left side threaded connection has viewing mechanism, detection mechanism includes the detection pipe, detection pipe's right side detachably is connected with the snap ring, the inside fixed mounting of snap ring has the detection prism, the hoop has been cup jointed in the activity of detection pipe outer wall middle part, the bottom threaded connection of hoop has fastening bolt, articulated between the top inner wall of hoop has the apron, the one end of apron rotates at the top of hoop, the left side of hoop is provided with adjusting screw, adjusting screw's bottom extends into the internally mounted of detection pipe has the speculum, the left side of speculum is provided with the scale, the outer wall of scale and the inner wall fixed connection of detection pipe, fixedly connected with screwed pipe on the left side outer wall of detection pipe, the apron is the light and light material, usable tool rotation adjusting screw adjusts the speculum for the light and shade is arranged in the zero position.

The technical scheme of the utility model is further improved as follows: the handheld mechanism comprises a lens cone, a connecting thread is arranged on the inner wall of the right side of the lens cone, and the inner wall of the connecting thread is in threaded connection with the outer wall of the threaded pipe.

By adopting the technical scheme, the lens cone is in threaded connection with the threaded pipe, so that the subsequent disassembly and installation are convenient.

The technical scheme of the utility model is further improved as follows: an anti-skid sleeve is fixedly arranged on the outer wall of the lens barrel, a connecting pipe is fixedly connected to the left outer wall of the lens barrel, and an adjusting external thread is arranged on the left outer wall of the connecting pipe.

By adopting the technical scheme, the anti-skid sleeve is made of rubber, so that the device can be prevented from falling off when observing scales, and heat can be isolated from entering the lens cone.

The technical scheme of the utility model is further improved as follows: the observation mechanism comprises a lantern ring, an adjusting internal thread is arranged on the inner wall on the right side of the lantern ring, and the inner wall of the adjusting internal thread is in threaded connection with the outer wall of the adjusting external thread.

By adopting the technical scheme, the bright-dark cut-off clarity of the visual field is adjusted by rotating the lantern ring, so that the reading is more accurate.

The technical scheme of the utility model is further improved as follows: the left side fixedly connected with lens hood of lantern ring, the left side center department fixedly connected with of lens hood connects the bulge loop, the center fixed mounting of connecting the bulge loop has the eyepiece.

By adopting the technical scheme, the eyes are guaranteed not to receive other light sources during observation through the design of the light shield.

The technical scheme of the utility model is further improved as follows: the outer wall of eyepiece and the inner wall fixed connection of lantern ring, the outside of connecting the bulge loop is provided with the fixed block, the right side wall of fixed block and the left side fixed connection of lens hood.

By adopting the technical scheme, through the design of the fixed block, the protection sleeve is convenient to fix, and the protection sleeve is prevented from being lost.

The technical scheme of the utility model is further improved as follows: the left side fixed connection of fixed block is in the one end of stay cord, the other end fixedly connected with protective sheath of stay cord, the outer wall threaded connection of one side inner wall and the connection bulge loop of protective sheath.

By adopting the technical scheme, the ocular is conveniently isolated from external dust through the design of the protective sleeve, and dust is prevented from being stained on the ocular to influence reading.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. The utility model provides a handheld refractometer device, which is characterized in that through the design of an observation mechanism, a protective sleeve is screwed off a connecting convex ring for observation reading when detection and observation are carried out, the protective sleeve is screwed on the connecting convex ring after the reading is finished, an ocular lens is isolated from external dust, dust is prevented from being stained on the ocular lens, and the ocular lens of the device is clear and has high measurement precision.

2. The utility model provides a handheld refractometer device, through the design of a handheld mechanism, the friction force between an anti-slip sleeve and a hand can be increased when a user observes, the device can be prevented from falling off when the user observes scales, meanwhile, the anti-slip sleeve made of rubber materials can also isolate heat from entering the inside of a lens cone, so that the fact that steam with too high temperature is liquefied on the inner wall of an eyepiece to influence subsequent reading is avoided, and the use of the device is convenient for the user.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the detection mechanism of the present utility model;

FIG. 3 is a schematic diagram of a hand-held mechanism according to the present utility model;

FIG. 4 is a right side schematic view of the observation mechanism of the present utility model;

fig. 5 is a left side schematic view of the observation mechanism of the present utility model.

In the figure: 1. a detection mechanism; 11. a detection tube; 12. a clasp; 13. a detection prism; 14. a ferrule; 15. a cover plate; 16. an adjusting screw; 17. a reflecting mirror; 18. a graduated scale; 19. a threaded tube; 2. a hand-held mechanism; 21. a lens barrel; 22. a connecting thread; 23. an anti-skid sleeve; 24. a connecting pipe; 25. adjusting the external thread; 3. an observation mechanism; 31. a collar; 32. adjusting the internal thread; 33. a light shield; 34. connecting convex rings; 35. an eyepiece; 36. a fixed block; 37. a pull rope; 38. and a protective sleeve.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-5, the utility model provides a handheld refractometer device, which comprises a detection mechanism 1, a handheld mechanism 2 is connected to the left side of the detection mechanism 1 in a threaded manner, an observation mechanism 3 is connected to the left side of the handheld mechanism 2 in a threaded manner, the detection mechanism 1 comprises a detection tube 11, a clamping ring 12 is detachably connected to the right side of the detection tube 11, a detection prism 13 is fixedly installed in the clamping ring 12, a hoop 14 is movably sleeved in the middle of the outer wall of the detection tube 11, a fastening bolt is connected to the bottom of the hoop 14 in a threaded manner, a cover plate 15 is hinged between the inner walls of the top of the hoop 14, one end of the cover plate 15 rotates at the top of the hoop 14, an adjusting screw 16 is arranged on the left side of the hoop 14, the bottom of the adjusting screw 16 extends into the inner wall of the detection tube 11 to be provided with a reflecting mirror 17, a graduated scale 18 is arranged on the left side of the reflecting mirror 17, the outer wall of the graduated scale 18 is fixedly connected with the inner wall of the detection tube 11, a threaded tube 19 is fixedly connected to the left side of the outer wall of the detection tube 11, a soft flannelette is used for wiping the surface of the detection prism 13, a plurality of distilled water drops on the detection prism 13, the detection screw 16 is gently closed, the cover plate 15 is gently is evenly distributed on the left side of the detection prism 13, and the light source is aligned with the surface of the detection prism 13 after the light source is adjusted by the adjusting screw 16.

Example 2

As shown in fig. 1-5, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the handheld mechanism 2 includes the lens cone 21, the connecting thread 22 has been seted up on the right side inner wall of lens cone 21, connecting thread 22's inner wall and screwed pipe 19's outer wall threaded connection, fixedly mounted with antiskid cover 23 on the outer wall of lens cone 21, lens cone 21 left side outer wall fixedly connected with connecting pipe 24, adjusting external screw thread 25 has been seted up on the left side outer wall of connecting pipe 24, observation mechanism 3 includes lantern ring 31, set up on the right side inner wall of lantern ring 31 and adjusted internal screw thread 32, adjusting internal screw thread 32's inner wall and adjusting external screw thread 25's outer wall threaded connection, antiskid cover 23 is held in the left hand, antiskid cover 23 can prevent that the observation scale from taking place to drop and can also keep apart heat entering lens cone 21 inside simultaneously, avoid the inner wall to produce steam influence reading, when the device is preserved, can rotatory dismantlement lens cone 21 and screwed pipe 19 again with the lantern ring 31 and connecting pipe 24 carry out the rotatory dismantlement after preserve, the storage space of device has been saved.

Example 3

As shown in fig. 1-5, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the left side fixedly connected with lens hood 33 of lantern ring 31, the left side center department fixedly connected with of lens hood 33 connects bulge loop 34, the center fixed mounting of connecting bulge loop 34 has eyepiece 35, the outer wall of eyepiece 35 and the inner wall fixed connection of lantern ring 31, the outside of connecting bulge loop 34 is provided with fixed block 36, the right side wall of fixed block 36 and the left side fixedly connected of lens hood 33, the left side fixed connection of fixed block 36 is in the one end of stay cord 37, the other end fixedly connected with protective sheath 38 of stay cord 37, the one side inner wall and the outer wall threaded connection of connecting bulge loop 34 of protective sheath 38, unscrew protective sheath 38 from connecting bulge loop 34, the eye observes the visual field through eyepiece 35, lens hood 33 shelters from outside light source, it does not receive other light sources to guarantee the observation time, if visual field bright and dark boundary is unclear, rotatory lantern ring 31 makes the visual field clear, after the reading is accomplished, again with protective sheath 38 swivelling joint in the outside of connecting bulge loop 34.

The working principle of the handheld refractometer device is specifically described below.

When using the handheld refractometer device, as shown in fig. 1-5, a user can hold the anti-slip cover 23 with the left hand, adjust the collar 31 with the right hand, open the cover plate 15, wipe the surface of the detection prism 13 clean with soft flannelette, drop a plurality of distilled water on the detection prism 13, lightly close the cover plate 15 to uniformly distribute the solution on the surface of the detection prism 13, align the instrument cover plate 15 with the bright place of the light source, unscrew the protective sleeve 38 from the connecting convex ring 34, observe the visual field through the ocular lens 35, rotate the collar 31 to make the visual field clear if the bright-dark cut-off of the visual field is unclear, rotate the adjusting screw 16 with the tool to place the bright-dark cut-off in the zero position, wipe distilled water, change the test solution, look at the place at the cut-off line, read the displayed scale value through the scale 18 and the corresponding dividing line in the visual field, and calculate the concentration value and density value of the tested solution precisely according to the optical principle and mathematic theory.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. A hand-held refractometer device, comprising a detection mechanism (1), characterized in that: the detection device is characterized in that a handheld mechanism (2) is connected to the left side of the detection mechanism (1) through threads, an observation mechanism (3) is connected to the left side of the handheld mechanism (2) through threads, the detection mechanism (1) comprises a detection tube (11), a clamping ring (12) is detachably connected to the right side of the detection tube (11), and a detection prism (13) is fixedly arranged in the clamping ring (12);

The utility model discloses a measuring tube, including measuring tube (11), casing (14) have been cup jointed in the middle part activity of outer wall, the bottom threaded connection of casing (14) has fastening bolt, articulated between the top inner wall of casing (14) have apron (15), the one end of apron (15) rotates at the top of casing (14), the left side of casing (14) is provided with adjusting screw (16), the internally mounted that the bottom of adjusting screw (16) extends into measuring tube (11) has reflector (17), the left side of reflector (17) is provided with scale (18), the outer wall of scale (18) and the inner wall fixed connection of measuring tube (11), fixedly connected with screwed pipe (19) on the left side outer wall of measuring tube (11).

2. A handheld refractometer unit according to claim 1, characterized in that: the handheld mechanism (2) comprises a lens cone (21), a connecting thread (22) is arranged on the inner wall of the right side of the lens cone (21), and the inner wall of the connecting thread (22) is in threaded connection with the outer wall of the threaded pipe (19).

3. A hand-held refractometer unit according to claim 2, characterized in that: an anti-skid sleeve (23) is fixedly arranged on the outer wall of the lens cone (21), a connecting pipe (24) is fixedly connected with the left outer wall of the lens cone (21), and an adjusting external thread (25) is arranged on the left outer wall of the connecting pipe (24).

4. A handheld refractometer unit according to claim 3, characterized in that: the observation mechanism (3) comprises a lantern ring (31), an adjusting internal thread (32) is arranged on the right inner wall of the lantern ring (31), and the inner wall of the adjusting internal thread (32) is in threaded connection with the outer wall of the adjusting external thread (25).

5. A hand-held refractometer unit according to claim 4, wherein: the left side fixedly connected with lens hood (33) of lantern ring (31), the left side center department fixedly connected with of lens hood (33) connects bulge loop (34), the center fixed mounting of connecting bulge loop (34) has eyepiece (35).

6. A handheld refractometer apparatus according to claim 5, wherein: the outer wall of eyepiece (35) and the inner wall fixed connection of lantern ring (31), the outside of connecting bulge loop (34) is provided with fixed block (36), the right side wall of fixed block (36) and the left side fixed connection of lens hood (33).

7. A hand-held refractometer unit according to claim 6, wherein: the left side fixed connection of fixed block (36) is in the one end of stay cord (37), the other end fixedly connected with protective sheath (38) of stay cord (37), the outer wall threaded connection of one side inner wall and connection bulge loop (34) of protective sheath (38).