CN213041331U

CN213041331U - Mechanical analytical balance

Info

Publication number: CN213041331U
Application number: CN202021682868.1U
Authority: CN
Inventors: 曾凡强
Original assignee: Chongqing Rongshi Industrial Co ltd
Current assignee: Chongqing Rongshi Industrial Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-04-23
Anticipated expiration: 2030-08-13

Abstract

The utility model discloses a mechanical type analytical balance, the power distribution box comprises a first box body, the equal fixedly connected with second box in both sides end of first box, the preceding terminal surface of first box is provided with spacing frame, the centre of spacing frame is provided with first observation window, the lower extreme of first box is provided with the threaded rod, the surface of threaded rod is provided with the scale mark, the inner wall fixedly connected with base of first box, the upper end of base is provided with the balancing pole, the upper end of balancing pole is provided with the counter weight pole, the equal fixedly connected with connecting rod in both ends of balancing pole, the centre of connecting rod is provided with the casing, the inside of casing is provided with balancing weight and spring, the lower extreme of connecting rod is provided with places the box. The utility model discloses in, through observing scale mark adjusting threaded rod, and then ensure balance's measurement accuracy, the inside of casing is provided with spring and balancing weight, and then makes to place the box fast steady, the practicality reinforcing.

Description

Mechanical analytical balance

Technical Field

The utility model relates to a balance field especially relates to a mechanical type analytical balance.

Background

The analytical balance is the most important instrument for accurate weighing in experiments, and can be divided into a mechanical type and an electronic type, the mechanical analytical balance utilizes a lever principle, the mechanical balance can meet the accuracy requirement of general quantitative analysis, the sensitivity is 0.1mg, and the mechanical balance is characterized by visual structure.

The mechanical balance is high in sensitivity, time-consuming and labor-consuming in adjustment, long in stability, long in measurement time, and large in measurement error, and the mechanical balance needs to be placed horizontally, so that the mechanical balance is provided.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcomings existing in the prior art and provide a mechanical analytical balance.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a mechanical analytical balance comprises a first box body, wherein the upper end of the first box body is fixedly connected with a limiting sleeve, the two side ends of the first box body are fixedly connected with a second box body, the outer surface of the second box body is rotatably connected with a protective frame, the middle of the protective frame is provided with a second observation window, the front end surface of the first box body is provided with the limiting frame, the middle of the limiting frame is provided with a first observation window, the lower end of the first box body is fixedly connected with a rod sleeve, the inner wall of the rod sleeve is in threaded connection with a threaded rod, the outer surface of the threaded rod is provided with scale marks, the lower end of the threaded rod is fixedly connected with a supporting leg, the inner wall of the first box body is fixedly connected with a base, the upper end of the base is fixedly connected with a supporting rod, the upper end of the supporting rod is fixedly, the upper end fixedly connected with balancing pole of arc cover, the upper end of balancing pole is provided with the balancing pole, the equal fixedly connected with connecting rod in both ends of balancing pole, the centre of connecting rod is provided with the casing, the inside of casing is provided with the balancing weight, the upper end of balancing weight is provided with the spring, the lower extreme of connecting rod is provided with places the box.

As a further description of the above technical solution:

the lower end of the placing box is fixedly connected with a weighing body, and the number of the placing boxes is two.

As a further description of the above technical solution:

the upper end fixedly connected with first limiting plate of spring, the upper end fixedly connected with connecting rod of first limiting plate, the lower extreme fixedly connected with second limiting plate of spring, the lower extreme of second limiting plate is provided with the balancing weight.

As a further description of the above technical solution:

the outer surfaces of the first limiting plate and the second limiting plate are both connected with a shell in a sliding mode, the lower end of the shell is fixedly connected with hanging rings, and the number of the hanging rings is multiple.

As a further description of the above technical solution:

the outer surface sliding connection of counter weight pole has the balancing pole, the preceding terminal surface of balancing pole rotates and is connected with the regulating wheel, the lower extreme of regulating wheel is provided with the display screen, the bottom fixedly connected with bracing piece of display screen.

As a further description of the above technical solution:

the inner wall of the first box body is fixedly connected with a weight box, the front end face of the first box body is provided with a positioning hole, the inner wall of the positioning hole is connected with a pin in a sliding mode, the outer surface of the pin is connected with a fixing lug in a sliding mode, the upper end of the fixing lug is fixedly connected with a limiting frame, the front end face of the limiting frame is fixedly connected with a first handle, two side ends of the limiting frame are fixedly connected with sliding strips, the outer surface of each sliding strip is connected with a sliding groove in a sliding mode, and the sliding grooves and the first box body are connected into a.

As a further description of the above technical solution:

the front end face of the protection frame is fixedly connected with a second handle.

The utility model discloses following beneficial effect has:

1. the utility model discloses, the inside of first box is provided with the balancing pole, and the both ends of balancing pole all are provided with the casing, and the inside of casing is provided with spring and balancing weight, the first limiting plate of upper end fixedly connected with of spring, the lower extreme fixedly connected with second limiting plate of spring, and first limiting plate and second limiting plate make fast through spring and balancing weight and place the box steady, and the practicality reinforcing.

2. The utility model discloses, the lower extreme of first box is provided with the threaded rod, and the surface of threaded rod is provided with the scale mark, adjusts the threaded rod through observing the scale mark, and then ensures the measurement accuracy of balance.

Drawings

Fig. 1 is a front view of a mechanical analytical balance according to the present invention;

fig. 2 is a schematic view of a partial structure of a mechanical analytical balance according to the present invention;

fig. 3 is a partial side view of a mechanical analytical balance according to the present invention;

fig. 4 is an enlarged view of fig. 2 at a.

Illustration of the drawings:

1. a limiting sleeve; 2. positioning holes; 3. a first observation window; 4. a first case; 5. a pin; 6. scale lines; 7. supporting legs; 8. a threaded rod; 9. a rod sleeve; 10. fixing the ear; 11. a first handle; 12. a limiting frame; 13. a second case; 14. a second handle; 15. a slide bar; 16. a chute; 17. a fixed shaft; 18. A weight lever; 19. an adjustment wheel; 20. a balancing pole; 21. an arc-shaped sleeve; 22. a housing; 23. a base; 24. A display screen; 25. weighing a body; 26. placing the box; 27. a weight box; 28. a support bar; 29. a connecting rod; 30. a second observation window; 31. a protective frame; 32. a first limit plate; 33. a spring; 34. a second limiting plate; 35. a balancing weight; 36. and (5) hanging a ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a mechanical analytical balance comprises a first box body 4, a limit sleeve 1 is fixedly connected at the upper end of the first box body 4, a second box body 13 is fixedly connected at both side ends of the first box body 4, a protective frame 31 is rotatably connected at the outer surface of the second box body 13, the second protective frame 31 is in an open state, so that the temperature of the first box body 4 is kept balanced with the outside, a second observation window 30 is arranged in the middle of the protective frame 31, the second observation window 30 and the first observation window 3 are used for observing the balance state of the balance, a limit frame 12 is arranged at the front end surface of the first box body 4, a first observation window 3 is arranged in the middle of the limit frame 12, a rod sleeve 9 is fixedly connected at the lower end of the first box body 4, a threaded rod 8 is connected at the inner wall of the rod sleeve 9 in a threaded manner, scale lines 6 are arranged on the outer surface of the threaded rod 8, the threaded rod 8 is adjusted, lower extreme fixedly connected with supporting legs 7 of threaded rod 8, the inner wall fixedly connected with base 23 of first box 4, the upper end fixedly connected with bracing piece 28 of base 23, the upper end fixedly connected with fixed axle 17 of bracing piece 28, the surface sliding connection of fixed axle 17 has arc cover 21, the upper end fixedly connected with balancing pole 20 of arc cover 21, the upper end of balancing pole 20 is provided with balancing pole 18, adjusting wheel 19 adjusts the position of balancing pole 18 and makes the balance balanced, make the accurate measuring object's of balance weight simultaneously, the equal fixedly connected with connecting rod 29 in both ends of balancing pole 20, the centre of connecting rod 29 is provided with casing 22, casing 22's inside is provided with balancing weight 35, the upper end of balancing weight 35 is provided with spring 33, spring 33 and balancing weight 35 make place box 26 steady fast, show improvement weighing efficiency, the lower extreme of connecting rod 29 is provided with places.

The lower end of the placing box 26 is fixedly connected with a scale body 25, the number of the placing box 26 is two, the upper end of a spring 33 is fixedly connected with a first limit plate 32, the upper end of the first limit plate 32 is fixedly connected with a connecting rod 29, the lower end of the spring 33 is fixedly connected with a second limit plate 34, the lower end of the second limit plate 34 is provided with a balancing weight 35, the outer surfaces of the first limit plate 32 and the second limit plate 34 are both connected with a shell 22 in a sliding way, the lower end of the shell 22 is fixedly connected with a hanging ring 36, the hanging ring 36 is used for hanging and matching weights, the number of the hanging rings 36 is multiple, the outer surface of the balancing weight rod 18 is connected with a balancing rod 20 in a sliding way, the front end surface of the balancing rod 20 is rotatably connected with an adjusting wheel 19, the lower end of the adjusting wheel 19 is provided with a display screen 24, the bottom end of the display screen 24 is fixedly, the inner wall sliding connection of locating hole 2 has pin 5, the surface sliding connection of pin 5 has fixed ear 10, the spacing frame 12 of the upper end fixedly connected with of fixed ear 10, the first in command 11 of preceding terminal surface fixedly connected with of spacing frame 12, the equal fixedly connected with draw runner 15 of both sides of spacing frame 12, the surface sliding connection of draw runner 15 has spout 16, spout 16 and first box 4 are connected as an organic whole, the preceding terminal surface fixedly connected with second in command 14 of protective frame 31.

The working principle is as follows: in the utility model, both side ends of a first box body 4 are fixedly connected with a second box body 13, the second box body 13 beats or closes a protective frame 31 through a second handle 14, the second protective frame 31 is in an open state, so that the temperature of the first box body 4 is kept balanced with the outside, the protective frame 31 is closed during measurement, the front end surface of the first box body 4 is connected with a limit frame 12 through a sliding block, the limit frame 12 is generally in a closed state, the lower end of the first box body 4 is provided with a threaded rod 8, the outer surface of the threaded rod 8 is provided with scale marks 6, the threaded rod 8 is adjusted by observing the scale marks 6, so as to ensure the measurement precision of the balance, the inner wall of the first box body 4 is fixedly connected with a base 23, the upper end of the base 23 is connected with an arc sleeve 21 through a support rod 28 in a sliding manner, the upper end of the arc sleeve 21 is fixedly connected with a balance rod 20, the, casing 22 all has at the both ends of balancing pole 20, and casing 22's inside is provided with spring 33, balancing weight 35, first limiting plate 32 and second limiting plate 34, the first limiting plate 32 of upper end fixedly connected with of spring 33, and the lower extreme fixedly connected with second limiting plate 34 of spring 33, first limiting plate 32 and second limiting plate 34 make fast through spring 33 and balancing weight 35 and place box 26 steady, and then improve weighing efficiency.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A mechanical analytical balance comprising a first housing (4), characterized in that: the upper end of the first box body (4) is fixedly connected with a limiting sleeve (1), the two side ends of the first box body (4) are fixedly connected with a second box body (13), the outer surface of the second box body (13) is rotatably connected with a protective frame (31), a second observation window (30) is arranged in the middle of the protective frame (31), the front end face of the first box body (4) is provided with a limiting frame (12), the middle of the limiting frame (12) is provided with a first observation window (3), the lower end of the first box body (4) is fixedly connected with a rod sleeve (9), the inner wall of the rod sleeve (9) is in threaded connection with a threaded rod (8), the outer surface of the threaded rod (8) is provided with scale marks (6), the lower end of the threaded rod (8) is fixedly connected with supporting legs (7), and the inner wall of the first box body (4) is fixedly connected with a base, the utility model discloses a balance weight of a motor vehicle, including base (23), the upper end fixedly connected with bracing piece (28) of bracing piece (28), the upper end fixedly connected with fixed axle (17) of bracing piece (28), the surface sliding connection of fixed axle (17) has arc cover (21), the upper end fixedly connected with balancing pole (20) of arc cover (21), the upper end of balancing pole (20) is provided with counterweight (18), the equal fixedly connected with connecting rod (29) in both ends of balancing pole (20), the centre of connecting rod (29) is provided with casing (22), the inside of casing (22) is provided with balancing weight (35), the upper end of balancing weight (35) is provided with spring (33), the lower extreme of connecting rod (29) is provided with places box (26).

2. The mechanical analytical balance of claim 1 wherein: the lower end of the placing box (26) is fixedly connected with a weighing body (25), and the number of the placing boxes (26) is two.

3. The mechanical analytical balance of claim 1 wherein: the utility model discloses a spring (33) of spring, including spring (33), the upper end fixedly connected with of spring (33) first limiting plate (32), the upper end fixedly connected with connecting rod (29) of first limiting plate (32), the lower extreme fixedly connected with second limiting plate (34) of spring (33), the lower extreme of second limiting plate (34) is provided with balancing weight (35).

4. A mechanical analytical balance according to claim 3 wherein: the surface of first limiting plate (32) and second limiting plate (34) all sliding connection have casing (22), the lower extreme fixedly connected with link (36) of casing (22), the quantity of link (36) is a plurality of.

5. The mechanical analytical balance of claim 1 wherein: the surface sliding connection of counter weight pole (18) has balancing pole (20), the preceding terminal surface rotation of balancing pole (20) is connected with regulating wheel (19), the lower extreme of regulating wheel (19) is provided with display screen (24), the bottom fixedly connected with bracing piece (28) of display screen (24).

6. The mechanical analytical balance of claim 1 wherein: the inner wall fixedly connected with weight box (27) of first box (4), the preceding terminal surface of first box (4) is provided with locating hole (2), the inner wall sliding connection of locating hole (2) has pin (5), the surface sliding connection of pin (5) has fixing lug (10), the spacing frame of upper end fixedly connected with (12) of fixing lug (10), the preceding terminal surface fixedly connected with first in command (11) of spacing frame (12), the equal fixedly connected with draw runner (15) of both sides end of spacing frame (12), the surface sliding connection of draw runner (15) has spout (16), spout (16) and first box (4) are connected as an organic whole.

7. The mechanical analytical balance of claim 1 wherein: the front end face of the protective frame (31) is fixedly connected with a second handle (14).