CN212988688U

CN212988688U - Portable standard dynamometer for instrument calibration

Info

Publication number: CN212988688U
Application number: CN202022231097.0U
Authority: CN
Inventors: 李金政
Original assignee: Yunnan Fangyuan Metrology Calibration Testing Service Co ltd
Current assignee: Yunnan Fangyuan Metrology Calibration Testing Service Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-04-16
Anticipated expiration: 2030-10-09

Abstract

The utility model provides a lightweight standard dynamometer for instrument calibration, including standard dynamometer main part, install fixed box on the rear end face of standard dynamometer main part, a side-mounting elasticity fixed band of fixed box, the inboard of fixed box is equipped with winding mechanism, winding mechanism includes axis of rotation and electric motor, electric motor's output shaft runs through fixed box and links to each other with the bottom of axis of rotation, there is the elastic expansion area through spiral spring coupling on the outer wall of axis of rotation, the one end that fixed box was kept away from to the elastic expansion area is installed and is detained the seat, just the one end that fixed box was kept away from to the elastic fixing band is installed and is detained the body, detain the body and detain the seat cooperation and be connected. The utility model has small volume, portability, can fix the standard dynamometer at the positions of waist or arm, etc., and is convenient for carrying and use; the automatic retraction and extension of the elastic telescopic belt is realized through the electric motor and the rotating shaft, and the use is convenient.

Description

Portable standard dynamometer for instrument calibration

Technical Field

The utility model relates to a technical field of standard dynamometer specifically is a lightweight standard dynamometer for instrument calibration.

Background

In the prior art, a standard dynamometer is often used for calibrating instruments, but most of the existing standard dynamometers have complex structures, large volumes and weights and are inconvenient to carry and use.

According to patent document application number 201922353976.8, an intelligent dynamometer is provided, which comprises a dynamometer body, wherein a display is arranged on the front surface of the dynamometer body, a first level meter is arranged at the bottom of the front surface of the dynamometer body, a semicircular measuring block is fixedly connected to the center of the bottom of the dynamometer body, and a through hole is formed in the surface of the measuring block; pressure sensors are arranged at two ends of the bottom of the dynamometer body; the middle part of the side surface of the dynamometer body is fixedly connected with a sliding block, the side surface of the dynamometer body is provided with a support frame, the side surface of the support frame is provided with a track, and the dynamometer body is in sliding connection with the track arranged on the side surface of the support frame through the sliding block on the side surface; the second spirit level is all installed to the positive one side of two support frames, and the side of two support frames all is provided with the spring dynamometer, though the great object of person's of facilitating the use measuring mass, but the dynamometer volume is great, and is inconvenient to carry.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a lightweight standard dynamometer for instrument calibration for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a lightweight standard dynamometer for instrument calibration, includes standard dynamometer main part, install fixed box on the rear end face of standard dynamometer main part, a side-mounting elasticity fixed band of fixed box, the through-hole has been seted up to the one side relative with the elasticity fixed band on the fixed box, just the inboard of fixed box is equipped with winding mechanism, winding mechanism includes axis of rotation and electric motor, electric motor's output shaft runs through fixed box and links to each other with the bottom of axis of rotation, there is the elastic expansion area through spiral spring coupling on the outer wall of axis of rotation, the one end and the through-hole of elastic expansion area cooperate, the one end that the fixed box was kept away from to the elastic expansion area is installed and is detained the seat, just the one end that the fixed box was kept away from to the elasticity fixed band is installed and is detained the body, detain.

Preferably, the tensioning assembly is installed to one side of axis of rotation, the tensioning assembly includes first tensioning roller and second tensioning roller, the last lower extreme of first tensioning roller and second tensioning roller all is to rotate with fixed box through ball bearing and is connected.

Preferably, a protection box is installed on the outer side of the electric motor, the open end of the protection box is fixedly connected with the bottom of the fixing box, and the bottom of the electric motor is connected with an inner bottom plate flange of the fixing box.

Preferably, a rubber plate is installed below the electric motor, and the bottom of the rubber plate is fixedly connected with an inner bottom plate of the fixing box.

Preferably, one side of the protection box is horizontally provided with a plurality of heat dissipation holes in a penetrating mode.

Preferably, the top of axis of rotation runs through fixed box and extends to its outside and install the handle, just symmetrical cover is equipped with the limiting plate on the outer wall of axis of rotation.

Preferably, the two sides of the shell of the standard dynamometer main body are symmetrically provided with holding grooves, each holding groove is embedded with an anti-slip pad on the inner side, each anti-slip pad is of an integrally formed structure, and each anti-slip pad is provided with a plurality of anti-slip blocks on one side.

Preferably, each antiskid block is of a hemispherical structure, and the plane end of each antiskid block is fixedly connected with the antiskid pad.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has small volume, portability, can fix the standard dynamometer at the waist or the arm of a person through the rotating shaft, the volute spiral spring, the buckle body, the buckle seat, the elastic fixing band and the elastic expansion band, does not need to be held by hands or put the standard dynamometer in a box body for carrying, and is convenient to carry; the electric motor drives the rotating shaft to rotate, so that the elastic telescopic belt is automatically wound and unwound, and the use is convenient; under the condition of no electricity, the elastic telescopic belt can be retracted and extended through the arranged handle, and the practicability is high; can tensioning elastic expansion band through first tensioning roller and second tensioning roller, can effectually prevent that elastic expansion band deviation position from leading to the condition appearance that can't withdraw it.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the reverse side of the standard dynamometer body of the present invention;

FIG. 3 is a sectional view of the inner structure of the fixing box of the present invention;

fig. 4 is a top view of the fixing box structure of the present invention.

In the figure: 1. a standard dynamometer body; 11. a holding groove; 12. a non-slip mat; 121. anti-skid blocks; 2. a fixing box; 21. a through hole; 3. a winding mechanism; 31. a rotating shaft; 32. an electric motor; 33. a limiting plate; 34. a volute spiral spring; 35. a handle; 4. an elastic fixing band; 41. a buckle body; 5. a protective case; 51. a rubber plate; 52. heat dissipation holes; 6. an elastic stretchable band; 61. a buckle seat; 7. a tension assembly; 71. a first tension roller; 72. a second tension roller.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the embodiment, referring to fig. 2, 3 and 4, a portable standard force measuring device for calibrating a device includes a standard force measuring device body 1, a fixing box 2 is installed on a rear end surface of the standard force measuring device body 1, an elastic fixing band 4 is installed on one side of the fixing box 2, a through hole 21 is opened on one side of the fixing box 2 opposite to the elastic fixing band 4, a winding mechanism 3 is disposed inside the fixing box 2, the winding mechanism 3 includes a rotating shaft 31 and an electric motor 32, an output shaft of the electric motor 32 penetrates through the fixing box 2 and is connected with a bottom end of the rotating shaft 31, an elastic expansion band 6 is connected to an outer wall of the rotating shaft 31 through a scroll spring 34, the elastic expansion band 6 and the elastic fixing band 4 can be made of elastic band or other elastic material, such as rubber, one end of the elastic expansion band 6 is matched with the through hole 21, the end of the elastic expansion band 6, which is far away from the fixed box 2, is provided with a buckle seat 61, the end of the elastic fixing band 4, which is far away from the fixed box 2, is provided with a buckle body 41, the buckle body 41 is connected with the buckle seat 61 in a matching way, the buckle body 41 and the buckle seat 61 can be arranged by referring to a buckle of a safety band, under the action of the volute spiral spring 34, the elastic expansion band 6 can be directly pulled out, the elastic expansion band 6 is wound on the waist or the arm and other positions, the elastic expansion band 6 and the elastic fixing band 4 are connected through the matching of the buckle body 41 and the buckle seat 61, the standard dynamometer main body 1 can be fixed on the body without holding by hand or putting the standard dynamometer main body 1 in a box for carrying, the carrying is convenient, when the elasticity of the volute spiral spring 34 is not enough to support the retraction of the elastic expansion band 6, the rotating shaft 31 is driven by the electric motor 32 to rotate, the automatic retraction of the elastic expansion band 6 is, twist grip 35 makes axis of rotation 31 rotatory through twist grip 35, can accomplish receiving and releasing of elastic expansion band 6, also can realize receiving and releasing of elastic expansion band 6 under the circumstances of not having the electricity, has improved the practicality, the symmetrical cover is equipped with limiting plate 33 on the outer wall of axis of rotation 31, and two limiting plates 33 should be located the upper and lower end of elastic expansion band 6 respectively, realize elastic expansion band 6 spacing through limiting plate 33.

In an embodiment, referring to fig. 3 and 4, a tensioning assembly 7 is installed on one side of the rotating shaft 31, the tensioning assembly 7 includes a first tensioning roller 71 and a second tensioning roller 72, the upper and lower ends of the first tensioning roller 71 and the second tensioning roller 72 are rotatably connected with the fixed box 2 through ball bearings, the elastic telescopic belt 6 needs to pass through the first tensioning roller 71 and the second tensioning roller 72, the elastic telescopic belt 6 can be tensioned through the first tensioning roller 71 and the second tensioning roller 72, and the elastic telescopic belt 6 can be effectively prevented from being unable to be retracted due to deviation of the position.

In an embodiment, referring to fig. 2 and 3, a protection box 5 is installed outside the electric motor 32, an open end of the protection box 5 is fixedly connected to the bottom of the fixing box 2, the bottom of the electric motor 32 is flange-connected to the inner bottom plate of the fixing box 2, a rubber plate 51 is installed below the electric motor 32, vibration reduction is achieved through the rubber plate 51, the bottom of the rubber plate 51 is fixedly connected to the inner bottom plate of the fixing box 2, a plurality of heat dissipation holes 52 are horizontally arranged on one side of the protection box 5 in a penetrating manner, when the standard dynamometer main body 1 drops accidentally, the electric motor 32 can be protected through the protection box 5, and heat generated during operation of the electric motor 32 is dissipated through the heat dissipation holes 52.

In an embodiment, referring to fig. 1, gripping grooves 11 are symmetrically formed in two sides of a shell of a standard dynamometer body 1, a non-slip pad 12 is embedded in each gripping groove 11, each non-slip pad 12 is of an integrally formed structure, a plurality of non-slip blocks 121 are arranged on one side of each non-slip pad 12, each non-slip block 121 is of a hemispherical structure, a planar end of each non-slip block 121 is fixedly connected with the non-slip pad 12, the standard dynamometer body 1 is conveniently gripped by a hand through the set gripping grooves 11, the gripping grooves 11 are attached to a palm of a person, ergonomics are met, comfort is improved, friction between the hand and the standard dynamometer body 1 is increased through the non-slip pads 12 and the set non-slip blocks 121, and the probability that the standard dynamometer body 1 slips off from the hand is reduced.

The utility model discloses a concrete operation as follows:

firstly, under the action of the scroll spring 34, the elastic telescopic belt 6 can be directly pulled out, the elastic telescopic belt 6 is wound on the waist or at the positions of arms and the like, the elastic telescopic belt 6 and the elastic fixing belt 4 are connected through the matching of the buckle body 41 and the buckle seat 61, the standard dynamometer main body 1 can be fixed on a body without being held by hands or being carried in a box, when the elasticity of the scroll spring 34 is not enough to support the retraction of the elastic telescopic belt 6, the electric motor 32 drives the rotating shaft 31 to rotate, the automatic retraction of the elastic telescopic belt 6 is realized, under the condition of no electricity, the rotating shaft 31 is rotated through the rotating handle 35, the retraction of the elastic telescopic belt 6 can be also completed, the practicability is high, and in the process of pulling out the elastic telescopic belt 6, the elastic telescopic belt 6 is tensioned through the first tensioning roller 71 and the second tensioning roller 72.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides a lightweight standard dynamometer for instrument calibration, includes standard dynamometer main part (1), its characterized in that, install fixed box (2) on the rear end face of standard dynamometer main part (1), one side-mounting elastic fixing band (4) of fixed box (2), through-hole (21) have been seted up to one side relative with elastic fixing band (4) on fixed box (2), just the inboard of fixed box (2) is equipped with winding mechanism (3), winding mechanism (3) include axis of rotation (31) and electric motor (32), the output shaft of electric motor (32) runs through fixed box (2) and links to each other with the bottom of axis of rotation (31), be connected with elastic expansion band (6) through scroll spring (34) on the outer wall of axis of rotation (31), the one end and the through-hole (21) of elastic expansion band (6) cooperate, the one end that fixed box (2) were kept away from in elastic expansion area (6) is installed and is detained seat (61), just body (41) are installed to the one end that fixed box (2) were kept away from in elastic fixing area (4), detain body (41) and detain seat (61) cooperation and be connected.

2. A portable standard load cell for instrument calibration according to claim 1 wherein a tension assembly (7) is mounted to one side of the rotating shaft (31), said tension assembly (7) comprising a first tension roller (71) and a second tension roller (72), the upper and lower ends of said first tension roller (71) and said second tension roller (72) being rotatably connected to the stationary box (2) by means of ball bearings.

3. Portable standard load cell for instrument calibration according to claim 1, characterized in that a protective box (5) is mounted on the outside of the electric motor (32), the open end of the protective box (5) is fixedly connected to the bottom of the stationary box (2), and the bottom of the electric motor (32) is flanged to the inner bottom plate of the stationary box (2).

4. A portable standard load cell for instrument calibration according to claim 3, characterized in that a rubber plate (51) is mounted under the electric motor (32), the bottom of the rubber plate (51) being fixedly connected to the inner bottom plate of the mounting box (2).

5. Portable standard load cell for instrument calibration according to claim 4, characterized in that a plurality of heat dissipation holes (52) are provided horizontally through one side of the protective case (5).

6. The portable standard load cell for instrument calibration according to claim 1, wherein the top end of the rotating shaft (31) extends through the fixing box (2) to the outside of which a handle (35) is installed, and the outer wall of the rotating shaft (31) is symmetrically sleeved with limiting plates (33).

7. The portable standard load cell for instrument calibration according to claim 1, wherein the standard load cell body (1) has holding grooves (11) symmetrically formed on both sides of the housing, non-slip pads (12) are embedded on the inner side of each holding groove (11), each non-slip pad (12) is an integrally formed structure, and a plurality of non-slip blocks (121) are arranged on one side of each non-slip pad (12).

8. A portable standard load cell for instrument calibration according to claim 7 wherein each said anti-skid block (121) is of hemispherical configuration, the planar end of each said anti-skid block (121) being fixedly attached to an anti-skid pad (12).