CN219776941U - Multi-range spring dynamometer - Google Patents

Abstract

The utility model discloses a spring dynamometer with multiple measuring ranges, which relates to the technical field of design of spring dynamometer measuring ranges and comprises a shell, wherein a pull rod is arranged in the shell, a supporting rod is fixedly connected to the outer surface of the pull rod, a sliding block is connected to the inside of the shell, a threaded rod is connected to the inside of the sliding block in a penetrating manner, a fixing block is fixedly arranged on the outer surface of the sliding block, and a tension spring is fixedly connected to the outer surface of the connecting plate. According to the utility model, through designing structures such as the tension springs and the threaded rods, when the spring dynamometer is used for measuring the tension of an object, when the measuring range of the spring dynamometer is smaller, the threaded rods can be rotated through the handheld handles, the threaded rods penetrate through the inside of the connecting blocks and the connecting plates, the middle tension springs are fixedly connected with the connecting plates, when the tension of the object is measured, the three tension springs are simultaneously stretched, the measuring range of the spring dynamometer is increased, and meanwhile, the actual measuring quantity of the tension springs can be adjusted through rotating the threaded rods.

Description

Multi-range spring dynamometer

Technical Field

The utility model relates to the technical field of spring force measurement and metering engineering, in particular to a multi-range spring force meter.

Background

The existing authorized bulletin number is: "a multi-range spring dynamometer" of CN209541951U, which includes a connecting rod, a housing, a spring, a slider, a guide bar, a slide plate, a tie rod, an inner spring, an outer spring, and a pointer; the outer surface of the shell is provided with a scale plate; the shell is detachably provided with a first sealing cover and a second sealing cover; a solid ball is arranged in the second through hole on the second sealing cover; the connecting rod is connected with the first sealing cover and the bracelet; the sliding plate is provided with a pointer; the guide rods are arranged at the lower end of the first sealing cover side by side; the lower end of the guide rod sequentially passes through the sliding block and the sliding plate respectively and is connected with the limiting plate respectively; the inner spring is sleeved outside the outer spring; two ends of the inner spring and the outer spring are respectively connected with the first sealing cover and the sliding plate; the upper end of the pull rod is connected with the slide plate; the lower end of the pull rod extends out of the shell and is connected with the hook. According to the utility model, the force of different objects can be detected in multiple ranges by realizing one dynamometer through matching and combining the inner spring and the outer spring; the provision of a sealed enclosure prevents the metal components from being exposed to air for extended periods of time causing wear.

By adopting the technical scheme, the inner spring and the outer spring are arranged in the spring dynamometer, when the spring dynamometer measures smaller pulling force, the inner spring or the outer spring is required to be detached, the maximum range of the spring dynamometer is reduced, and when the inner spring and the outer spring are simultaneously matched and combined, the force measurement can be realized due to larger range, the error of measurement data is larger, and the subsequent measurement test result is influenced.

Disclosure of Invention

The utility model aims to provide a multi-range spring dynamometer, and aims to solve the problems that in the prior art, an inner spring and an outer spring are arranged in the spring dynamometer, when the spring dynamometer measures smaller tensile force, the inner spring or the outer spring needs to be disassembled, the maximum range of the spring dynamometer is reduced, and when the inner spring and the outer spring are simultaneously matched and combined to realize force measurement, the range is larger, the error of measured data is larger, and the subsequent measurement test result is influenced.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a spring dynamometer of multiscale, includes the shell, the top of shell is connected with solid fixed ring, gu fixed ring's one end is connected with the pull ring, the internally mounted of shell has the pull rod, the bottom fixedly connected with stopper of pull rod, the one end of stopper is connected with the couple, the surface fixedly connected with bracing piece of pull rod, the internally connected with slider of shell, the inside through connection of slider has the threaded rod, the one end fixedly connected with handle of threaded rod, the surface fixedly mounted of slider has the fixed block, the one end of fixed block is connected with the connecting plate, the surface fixedly connected with pointer of connecting plate, the surface fixedly connected with tension spring of connecting plate, the top of tension spring is connected with the connecting block, the one end fixedly connected with embedding piece of connecting block.

Through adopting above-mentioned technical scheme, rectangular channel has been seted up to the surface of shell, and the spout has all been seted up at the both ends of rectangular channel that the shell surface was seted up, and the both sides of slider are sliding connection on the spout inner wall that the shell surface rectangular channel both ends were seted up simultaneously.

The utility model is further provided with: the outer surface of the shell is provided with the rectangular groove, and the two ends of the rectangular groove are provided with the sliding grooves, so that the sliding block and the middle tension spring are conveniently separated or connected.

Through adopting above-mentioned technical scheme, rectangular channel has been seted up to the bottom of shell, the one end size of stopper is greater than the size of rectangular channel that the shell bottom was seted up.

The utility model is further provided with: the rectangular groove formed in the bottom of the shell enables the support rod and the pull rod to move downwards smoothly, and the design of the size of the limiting block effectively prevents the hook from entering the shell.

By adopting the technical scheme, the outer surface of the threaded rod is connected in the connecting plate in a penetrating way.

The utility model is further provided with: the threaded rod can change the connection relation between the middle tension spring and the connecting plate, so that the spring dynamometer can change the measurement quantity of the tension spring, and the spring dynamometer is changed into a dynamometer device with a multi-range function.

Through adopting above-mentioned technical scheme, tension spring has three, and the bottom of tension spring in the middle is connected with the one end fixed block fixed.

The utility model is further provided with: the middle tension spring is connected with the fixed block, and the fixed block can connect the middle tension spring with the connecting plate into a whole and can separate the connecting plate from the tension spring.

Through adopting above-mentioned technical scheme, the one end embedding of couple is in the end inside of stopper, and the one end of couple is connected with the inside rotation of stopper.

The utility model is further provided with: through the one end rotation connection of design couple and stopper, make the couple before measuring object pulling force, the object is measured with the contact of multi-angle more quick, and the performance of couple is more nimble.

In summary, the beneficial technical effects of the utility model are as follows:

according to the utility model, when the spring dynamometer is used for measuring the tensile force of an object through designing structures such as the tension springs, the threaded rod and the like, when the measuring range of the spring dynamometer is smaller, the threaded rod can be rotated through the handheld handle, the threaded rod penetrates through the inside of the connecting slide block and the connecting plate, the middle tension springs are fixedly connected with the connecting plate, when the tensile force of the object is measured, the three tension springs are simultaneously stretched, the measuring range of the spring dynamometer is increased, and meanwhile, the actual measuring quantity of the tension springs can be adjusted through rotating the threaded rod.

Drawings

FIG. 1 is an isometric schematic of the overall structure of the present utility model;

FIG. 2 is a schematic view of a midline cross section of the present utility model showing the dimensional relationship of the stopper and rectangular slot at the bottom of the housing;

FIG. 3 is a schematic view of a midline cross section of the present utility model showing the positional relationship of the tension spring and the web;

FIG. 4 is a schematic view of a midline cross section of the present utility model showing the measured number relationship of tension springs and tie rods.

Reference numerals:

1. a housing;

2. a fixing ring; 21. a pull ring;

3. a pull rod; 31. a limiting block; 32. a hook;

4. a support rod;

5. a slide block; 51. a threaded rod; 52. a handle;

6. a fixed block;

7. a connecting plate; 71. a pointer;

8. a tension spring;

9. a connecting block; 91. and embedding the blocks.

Detailed Description

The present utility model will be described more fully hereinafter with reference to the accompanying examples.

Referring to fig. 1-4, a spring dynamometer with multiple measuring ranges comprises a housing 1, a rectangular groove is formed in the outer surface of the housing 1, sliding grooves are formed in two ends of the rectangular groove formed in the outer surface of the housing 1, meanwhile, two sides of a sliding block 5 are slidably connected to inner walls of the sliding grooves formed in two ends of the rectangular groove formed in the outer surface of the housing 1, the rectangular groove is formed in the bottom of the housing 1, one end size of a limiting block 31 is larger than that of the rectangular groove formed in the bottom of the housing 1, the top of the housing 1 is connected to one end of a fixed ring 2, one end of the fixed ring 2 is connected to the inside of a pull ring 21, a pull rod 3 is mounted in the inside of the housing 1, the bottom of the pull rod 3 is fixedly connected to one end of the limiting block 31, one end of the limiting block 31 is connected to one end of a hook 32, one end of the hook 32 is embedded into the bottom of the limiting block 31, one end of the hook 32 is rotatably connected to the inside of the limiting block 31, and the outer surface of the pull rod 3 is fixedly connected to one end of a supporting rod 4.

The working principle of the embodiment is as follows: when measuring the pulling force, the pull ring 21 at spring dynamometer shell 1 top is fixed to the hand, keeps the spring dynamometer fixed on same horizontal line, hangs the one end of couple 32 with the object that needs to measure, and the distance that pull rod 3 and bracing piece 4 that connects on the pull rod 3 surface moved down along the rectangular channel that the shell 1 bottom was seted up simultaneously along the object, and until the object keeps stable, when the object breaks away from the surface of couple 32, the upward elasticity in the twinkling of an eye of pulling spring 8, and the one end size of stopper 31 is greater than the size of rectangular channel that the shell 1 bottom was seted up, effectively prevents couple 32 to rebound to the inside of shell 1.

Referring to fig. 1-4, a multi-range spring dynamometer is disclosed, the inside of a shell 1 is connected with a sliding block 5, the inside of the sliding block 5 is connected on the outer surface of a threaded rod 51 in a penetrating manner, the threaded rod 51 can change the connection relation between a middle tension spring 8 and a connecting plate 7, the spring dynamometer can change the measurement quantity of the tension spring 8, the outer surface of the threaded rod 51 is connected on the inside of the connecting plate 7 in a penetrating manner, one end of the threaded rod 51 is fixedly connected on the outer surface of a handle 52, the outer surface of the sliding block 5 is fixedly installed at the bottom of a fixed block 6, the sliding block 5 and the fixed block 6 are fixedly connected into a whole, one end of the fixed block 6 is connected at one end of the connecting plate 7, the outer surface of the connecting plate 7 is fixedly connected at one end of a pointer 71, the outer surface of the connecting plate 7 is fixedly connected at one end of the tension spring 8, the bottom of the middle tension spring 8 is fixedly connected with one end of the fixed block 6, the top of the tension spring 8 is connected at one end of a connecting block 9, and one end of the connecting block 9 is fixedly connected at the bottom of an embedded block 91.

The working principle of the embodiment is as follows: when the measuring range of the spring dynamometer needs to be increased, one end of the threaded rod 51 is aligned with a round hole on the outer surface of the connecting plate 7, the threaded rod 51 is rotated into the round hole on the outer surface of the connecting plate 7 by the rotating handle 52, the tension springs 8 in the middle are fixedly connected with the connecting plate 7, when the hook 32 is used for hanging a measured object, the three tension springs 8 are simultaneously and gradually stretched under the tension of one end of the hook 32, the tension rods 3 and the supporting rods 4 are driven by the connecting plate 7 to move downwards, and when the state of the connecting plate 7 is gradually kept stable, the scale pointed by the pointer 71 is the tension measured by the spring dynamometer.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model. All equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (6)

1. A multi-range spring dynamometer comprising a housing (1), characterized in that: the utility model discloses a fixed ring, including fixed ring (2), fixed ring (2)'s one end is connected with pull ring (21), fixed ring (1)'s internally mounted has pull rod (3), pull rod (3)'s bottom fixedly connected with stopper (31), the one end of stopper (31) is connected with couple (32), pull rod (3)'s surface fixedly connected with bracing piece (4), the internally connected with slider (5) of shell (1), slider (5) inside through-connection has threaded rod (51), threaded rod (51)'s one end fixedly connected with handle (52), slider (5) surface fixed mounting has fixed block (6), fixed block (6)'s one end is connected with connecting plate (7), connecting plate (7) surface fixedly connected with pointer (71), connecting plate (7) surface fixedly connected with tension spring (8), connecting block (9) are connected with at the top of tension spring (8), connecting block (9) one end fixedly connected with embedded block (91).

2. A multi-range spring load cell according to claim 1 wherein: rectangular grooves are formed in the outer surface of the shell (1), sliding grooves are formed in the two ends of the rectangular grooves formed in the outer surface of the shell (1), and meanwhile two sides of the sliding block (5) are in sliding connection with the inner walls of the sliding grooves formed in the two ends of the rectangular grooves in the outer surface of the shell (1).

3. A multi-range spring load cell according to claim 2, wherein: rectangular grooves are formed in the bottom of the shell (1), and one end of the limiting block (31) is larger than the rectangular grooves formed in the bottom of the shell (1).

4. A multi-range spring load cell according to claim 1 wherein: the outer surface of the threaded rod (51) is connected inside the connecting plate (7) in a penetrating way.

5. A multi-range spring force gauge according to claim 4, wherein: the number of the tension springs (8) is three, and the bottom of the middle tension spring (8) is fixedly connected with one end of the fixed block (6).

6. A multi-range spring load cell according to claim 1 wherein: one end of the hook (32) is embedded into the bottom of the limiting block (31), and one end of the hook (32) is rotationally connected with the inside of the limiting block (31).