CN209841243U

CN209841243U - Spring dynamometer for physics experiments that facilitates use

Info

Publication number: CN209841243U
Application number: CN201920829854.9U
Authority: CN
Inventors: 吴浩嘉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2019-12-24
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a spring dynamometer for physics experiments that facilitates use, including the mount, the equal fixed connection base in mount bottom both sides is provided with the balancing weight between two bases, the fixed pipe of mount top fixed connection, insert the movable rod in the fixed pipe, and the fixed pipe wall has seted up the screwed pipe, screwed pipe female connection bolt, a plurality of locating hole has been seted up to the movable rod body, and movable rod top fixed connection lifter plate, lifter plate bottom fixed connection lifting hook hangs the dynamometer body on the lifting hook. The utility model provides a technical problem lie in overcoming prior art's spring dynamometer and use inconvenient when carrying out the physics experiment, cause arm muscle fatigue easily to poor stability leads to experimental data to produce the defect of deviation easily, provides a spring dynamometer for the physics experiment that facilitates the use. The utility model has the characteristics of convenient to use, stability is high, but height-adjusting etc.

Description

Spring dynamometer for physics experiments that facilitates use

Technical Field

The utility model relates to an experimental device technical field specifically is a spring dynamometer for physics experiments that facilitates use.

Background

Experiments are a very important teaching means in physics learning, and students can be stimulated to learn physical interest through the experiments and the understanding of some physics principles and formulas is deepened. A spring dynamometer is generally used in a physical experiment, is a tool for measuring force, is applied to physical mechanics, and mainly comprises a spring, a hook and a dial. Current spring dynamometer all needs the shackle at dynamometer top of holding in one hand when using, holds the dynamometer in one hand and tests, and is very inconvenient like this, still can lead to arm muscle ache after long-time to the spring dynamometer easily produces and rocks during the measurement, thereby influences the accuracy of experimental data.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's spring dynamometer and use inconvenient when carrying out the physics experiment, cause arm muscle fatigue easily to poor stability leads to experimental data to produce the defect of deviation easily, provides a spring dynamometer for the physics experiment that facilitates the use. The spring dynamometer for the physics experiments convenient to use has the characteristics of convenience in use, high stability, adjustable height and the like.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a spring dynamometer for physics experiments that facilitates use, includes the mount, the equal fixedly connected with base in bottom both sides of mount, two be provided with the balancing weight between the base, the fixed pipe of top fixedly connected with of mount, the movable rod has been inserted in the fixed pipe, just screwed pipe has been seted up to the pipe wall of fixed pipe, screwed pipe female connection has the bolt, a plurality of and bolt matched with locating hole have been seted up to the pole body of movable rod, just the top fixedly connected with lifter plate of movable rod, the bottom fixedly connected with lifting hook of lifter plate, the hanging has the dynamometer body on the lifting hook.

Preferably, the dynamometer body comprises a bottom shell and a watchcase, a plurality of positioning columns are fixedly connected around the edge of the front end face of the bottom shell, each positioning column is provided with a through hole, a plurality of positioning blocks are fixedly connected around the edge of the rear end face of the watchcase, each positioning block is inserted into the corresponding through hole on the positioning column, a fixed block is fixedly connected to the top of the bottom shell, a fixed ring is fixedly connected to the top of the fixed block, a hanging ring penetrates through the fixed ring and is hung on a hanging hook, a spring is fixedly connected to the bottom of the fixed block, a pointer is fixedly connected to the tail end of the spring, a pull rod is fixedly connected to the bottom of the pointer, the pull rod penetrates through the bottom of the bottom shell and extends to the lower part of the bottom shell, a hook is fixedly connected to the bottom of the pull rod, a pointer groove is formed in the front, the scale marks are positioned on two sides of the pointer groove.

Preferably, the outer wall of one side of the bottom shell is fixedly connected with a pair of fixing rods, the tail ends of the fixing rods are fixedly connected with limiting pipes, limiting rods are inserted into the limiting pipes, and the top ends of the limiting rods are fixedly connected to the bottom of the lifting plate.

Preferably, the center of the base is provided with a groove, a sucker is arranged in the groove, the bottom surface of the base is provided with a layer of rubber gasket, and herringbone anti-skid lines are carved on the surface of the rubber gasket.

Preferably, the lateral wall fixedly connected with handle of mount, the cover is equipped with the antiskid cover on the handle, the antiskid cover is silica gel cover structure, and its surface evenly distributed has the protruding grain of a plurality of hemisphere antiskid.

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

the dynamometer body is hung on the lifting hook, so that arm muscle fatigue caused by holding the dynamometer for a long time during an experiment can be avoided, the stability of the dynamometer can be improved, and the dynamometer is prevented from shaking during the experiment to influence the accuracy of data; can further improve the stability of dynamometer body through spacing pipe and gag lever post to can strengthen the stability of mount through the base, prevent that it from taking place the displacement when the experiment, through the height that reciprocates the adjustable lifter plate of movable rod along fixed pipe, go on in order to make things convenient for the experiment, avoid the distance undersize between lifter plate and the mount and block the experiment, can mention the mount together with the dynamometer body through holding the handle, thereby conveniently carry and carry.

Drawings

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

FIG. 2 is a schematic structural diagram of the bottom case;

figure 3 is a schematic view of the back end of the watch case;

figure 4 is a front end view of the watch case.

Reference numbers in the figures: the device comprises a fixed frame 1, a base 2, a balancing weight 3, a fixed tube 4, a movable rod 5, a threaded tube 6, a bolt 7, a positioning hole 8, a lifting plate 9, a lifting hook 10, a dynamometer body 11, a bottom shell 12, a watchcase 13, a positioning column 14, a positioning block 15, a fixed block 16, a fixed ring 17, a lifting ring 18, a spring 19, a pointer 20, a pull rod 21, a hook 22, a pointer groove 23, a scale mark 24, a fixed rod 25, a limiting tube 26, a limiting rod 27, a sucking disc 28, a handle 29 and an anti-skid sleeve 30.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a spring dynamometer for physical experiments, which is convenient to use, comprises a fixed frame 1, wherein the fixed frame 1 is L-shaped, the side wall of the fixed frame is fixedly connected with a handle 29, the handle 29 is sleeved with an anti-slip sleeve 30, the anti-slip sleeve 30 is of a silica gel sleeve structure, a plurality of hemispherical anti-slip convex grains are uniformly distributed on the surface of the anti-slip sleeve 30, the friction force between a hand and the handle 29 can be increased, the anti-slip dynamometer is prevented from slipping, two sides of the bottom of the fixed frame 1 are fixedly connected with a base 2, a groove is formed in the center of the base 2, a sucking disc 28 is arranged in the groove, a layer of rubber gasket is arranged on the bottom surface of the base 2, herringbone anti-slip grains are carved on the surface of the rubber gasket, the friction force between the base 2 and a desktop can be increased, so that the displacement caused by the external force during, the top of the fixing frame 1 is fixedly connected with a fixing tube 4, a movable rod 5 is inserted into the fixing tube 4, the tube wall of the fixing tube 4 is provided with a threaded tube 6, the threaded tube 6 is internally threaded with a bolt 7, the rod body of the movable rod 5 is provided with a plurality of positioning holes 8 matched with the bolt 7, the top end of the movable rod 5 is fixedly connected with a lifting plate 9, the bottom of the lifting plate 9 is fixedly connected with a lifting hook 10, a dynamometer body 11 is hung on the lifting hook 10, the dynamometer body 11 comprises a bottom shell 12 and a watchcase 13, a plurality of positioning columns 14 are fixedly connected around the edge of the front end face of the bottom shell 12, each positioning column 14 is provided with a through hole, a plurality of positioning blocks 15 are fixedly connected around the edge of the rear end face of the watchcase 13, the positioning blocks 15 and the positioning columns 14 are the same in number, the centers of, the bottom shell 12 and the watchcase 13 can be connected by utilizing the positioning column 14 and the positioning block 15, and the positioning function is achieved, the top of the bottom shell 12 is fixedly connected with the fixed block 16, the top of the fixed block 16 is fixedly connected with the fixed ring 17, the fixed ring 17 is internally penetrated with the hanging ring 18, the hanging ring 18 is hung on the hanging hook 10, the bottom of the fixed block 16 is fixedly connected with the spring 19, the tail end of the spring 19 is fixedly connected with the pointer 20, the bottom of the pointer 20 is fixedly connected with the pull rod 21, the pull rod 21 penetrates through the bottom of the bottom shell 12 and extends to the lower part of the bottom shell 12, the bottom end of the pull rod 21 is fixedly connected with the hook 22, the front end surface of the watchcase 13 is provided with the pointer groove 23, the front end surface of the watchcase 13 is engraved with a plurality of scale marks 24, the scale marks 24 are positioned at two sides of the pointer groove 23, the, the top fixed connection of gag lever post 27 utilizes spacing pipe 26 and gag lever post 27 can improve dynamometer body 11's stability in the bottom of lifter plate 9, prevents that it from taking place to rock and influencing the accuracy of experimental data in the experimentation.

The working principle is as follows: the utility model discloses when using, at first place mount 1 in the desktop, utilize the suction of sucking disc 28 to fix base 2 together with mount 1 on the desktop, then hang dynamometer body 11 and fix on lifting hook 10 of lifter plate 9 bottom, the in-process of hanging, make gag lever post 27 pass two spacing pipes 26 of drain pan 12 one side, so as to improve dynamometer body 11's stability, prevent that it from taking place to rock and influencing the accuracy of experimental data in the experimentation, later hang the heavy object of awaiting measuring on couple 22, couple 22 and pull rod 21 move down and stimulate spring 19 together under the action of gravity this moment, make the pointer 20 of its bottom move down along pointer groove 23 together after spring 19 is stretched, when spring 19 stops stretching, read the scale mark 24 that pointer 20 points to this moment, be the data that the experiment obtained promptly; in the in-process of experiment, can reciprocate movable rod 5 so that adjust the height of lifter plate 9 along fixed pipe 4 as required, then aim at bolt 7 and the height of fixing lifter plate 9 in the locating hole 8 of corresponding height of screw in, thereby can adjust the distance between lifter plate 9 and mount 1 according to concrete conditions such as the size of experiment heavy object, in order to make things convenient for the experiment, avoid the distance undersize and block the experiment, can hold handle 29 when not experimenting and mention mount 1 together with dynamometer body 11, thereby conveniently carry and carry.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spring dynamometer for physics experiments that facilitates use, includes mount (1), its characterized in that: the equal fixedly connected with base (2) in bottom both sides of mount (1), two be provided with balancing weight (3) between base (2), the fixed pipe (4) of top fixedly connected with of mount (1), movable rod (5) have been inserted in fixed pipe (4), just screwed pipe (6) have been seted up to the pipe wall of fixed pipe (4), screwed pipe (6) female connection has bolt (7), a plurality of and bolt (7) matched with locating hole (8) have been seted up to the pole body of movable rod (5), just top fixedly connected with lifter plate (9) of movable rod (5), bottom fixedly connected with lifting hook (10) of lifter plate (9), it has dynamometer body (11) to hang on lifting hook (10).

2. A physical experiment spring dynamometer for facilitating use according to claim 1, further comprising: the dynamometer body (11) comprises a bottom shell (12) and a watchcase (13), a plurality of positioning columns (14) are fixedly connected to the periphery of the edge of the front end face of the bottom shell (12), each positioning column (14) is provided with a through hole, a plurality of positioning blocks (15) are fixedly connected to the periphery of the edge of the rear end face of the watchcase (13), each positioning block (15) is inserted into the through hole of the corresponding positioning column (14), the top of the bottom shell (12) is fixedly connected with a fixing block (16), the top of the fixing block (16) is fixedly connected with a fixing ring (17), a lifting ring (18) is penetrated in the fixing ring (17), the lifting ring (18) is hung on a lifting hook (10), the bottom of the fixing block (16) is fixedly connected with a spring (19), the tail end of the spring (19) is fixedly connected with a pointer (20), and the bottom of the pointer (, the pull rod (21) penetrates through the bottom of the bottom shell (12) and extends to the lower portion of the bottom shell (12), a hook (22) is fixedly connected to the bottom end of the pull rod (21), a pointer groove (23) is formed in the front end face of the watchcase (13), a plurality of scale marks (24) are carved on the front end face of the watchcase (13), and the scale marks (24) are located on two sides of the pointer groove (23).

3. A physical experiment spring dynamometer for facilitating use according to claim 2, further comprising: the improved lifting plate is characterized in that a pair of fixing rods (25) are fixedly connected to the outer wall of one side of the bottom shell (12), limiting pipes (26) are fixedly connected to the tail ends of the fixing rods (25), limiting rods (27) are inserted into the limiting pipes (26), and the top ends of the limiting rods (27) are fixedly connected to the bottom of the lifting plate (9).

4. A physical experiment spring dynamometer for facilitating use according to claim 1, further comprising: the anti-skid device is characterized in that a groove is formed in the center of the base (2), a sucker (28) is arranged in the groove, a layer of rubber gasket is arranged on the surface of the bottom of the base (2), and herringbone anti-skid lines are carved on the surface of the rubber gasket.

5. A physical experiment spring dynamometer for facilitating use according to claim 1, further comprising: the side wall fixedly connected with handle (29) of mount (1), the cover is equipped with anti-skidding cover (30) on handle (29), anti-skidding cover (30) are silica gel cover structure, and its surface evenly distributed has the protruding grain of a plurality of hemisphere anti-skidding.