High-precision spring vertical dynamometer

Abstract

The utility model discloses a high-precision spring vertical dynamometer, which comprises a shell, an opening is arranged on the front surface of the shell, and a force measuring standard plate is fixedly arranged at the opening on the front surface of the shell. According to the high-precision spring vertical dynamometer, the rolling ball swings in multiple directions in the built-in block, so that when the suspension clasp ring is vertically lifted and supported, no matter which inclination angle the suspension clasp ring is hooked, the parts below the high-precision spring vertical dynamometer are automatically and vertically adjusted downwards through gravity; no matter how a finger inclines to hold the hook, the suspension clasp ring can automatically prevent inclination to vertically adjust the spring dynamometer and is matched with a stable triangular block for use, so that when the hook swings during hook measurement, most of horizontal stress can be relieved by a stable vertical sliding rod and a protection straight cylinder, and the measurement accuracy is improved. And the stress deformation of the straight lifting rod and the force measuring spring in the horizontal direction is greatly reduced, so that the accuracy of a measured value is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to force measuring instrument technical field, concretely is a high accuracy spring vertical force gauge. BACKGROUND

[0002] Spring force gauge is a tool for measuring the size of force, is used in physical mechanics, is mainly composed of spring, hook, scale board, and some matters need to be paid attention to before and during use, that is, when measuring force, the spring axis direction in the spring force gauge needs to be on a straight line with the direction of the measured force, therefore, when measuring the size of the object's gravity vertically, considering the effect of the object's gravity, the object needs to be in a vertical measurement state during normal use, and inclination measurement will cause a certain error in the measured value.

[0003] At present, the top hanging buckle ring and the spring of the spring vertical force gauge commonly used in the market are generally connected through a shaft cylinder or directly connected, therefore, during actual measurement (object weight measurement) operation, measurement errors caused by non-standard operation often exist, that is, the fingers holding the hanging buckle ring are in a slight inclination state (forward and backward and left and right inclination will exist, wherein the force gauge connected through the shaft cylinder can only ignore the swing of the two directions of the shaft cylinder to prevent inclination, and the other directions cannot be avoided), such problems are common non-standard operations during force measurement, so that the measured value has an error; for example, in the authorized Chinese patent with patent number CN 205843854 U, a high-precision spring force gauge, the drawing description Figure 1 It is obvious that the buckle ring connected with the top end of the spring is directly connected, so when the fingers of the hand hook the buckle ring during actual operation of such a force gauge, forward and backward or left and right inclination occurs, so that the measured object and the spring axis are not on the same vertical line, thereby causing the measured value to have a large error, and the hanging rod connected with the spring will be deformed due to the forward and backward swing of the measured object when it is initially placed, which will directly cause the spring or the hanging rod to be deformed after long-term use, further affecting the accuracy of the measured value. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model provides a high-precision spring vertical force gauge, which solves the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: A high accuracy spring vertical dynamometer, including the shell, the front of the shell is provided with an opening, the front opening of the shell is fixedly installed with the force gauge scale, the middle part of the force gauge scale is provided with a strip opening for reading, the top groove of the shell is fixedly provided with an embedded block, the inside of the embedded block is rotatably provided with a ball, the top of the ball is fixedly provided with a connecting piece, the top of the connecting piece is fixedly connected with a hanging buckle ring, the bottom of the embedded block is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly provided with a force spring, the bottom of the force spring is fixedly provided with a straight hanging rod, the bottom of the straight hanging rod is fixedly welded with a stable triangular block, the bottom of the stable triangular block is fixedly welded with a hook, the stable triangular block is located in the groove of the shell bottom, the front of the straight hanging rod is fixedly welded with a reading index needle through the connecting piece.

[0006] Preferably, the top of the stable triangular block is fixedly provided with two stable vertical sliding rods, the surfaces of the two stable vertical sliding rods are slidably connected with the inner wall of the shell, the top end of the stable vertical sliding rod is fixedly provided with a top sleeve cap, the side of the top sleeve cap is fixedly installed with a sliding linkage, both sides of the inner wall of the shell are fixedly connected with a sliding rail, the sliding block of the sliding linkage is inserted into the sliding groove of the sliding rail, and is slidably connected with the inner wall of the sliding groove of the sliding rail.

[0007] Preferably, the front of the shell is fixedly installed with a lifting disc, the top of the lifting disc is fixedly provided with a sealed transparent cover, the inside of the sealed transparent cover is provided with a bubble, the inside of the sealed transparent cover contains liquid water, the middle part of the sealed transparent cover is provided with an error ring disc line.

[0008] Preferably, the surface of the straight hanging rod is sleeved with a protective straight cylinder, the lower surface of the protective straight cylinder is in sliding contact with the inner wall of the shell, and the bottom end of the protective straight cylinder is in contact with the top surface of the stable triangular block.

[0009] Preferably, the pointer of the reading index needle extends to the outside of the shell, and the back of the pointer of the reading index needle is in sliding contact with the front of the force gauge scale.

[0010] The utility model provides a high accuracy spring vertical dynamometer.

[0011] (1), the high-precision spring vertical force gauge, through the inside of the built-in block of the ball in the multi-direction swing, make its hanging buckle ring is vertically hung up support, no matter the hanging buckle ring is hooked with what inclined angle, the high-precision spring vertical force gauge below component is automatically adjusted vertically downward by gravity, no matter how the finger is inclined to hold the hook hanging buckle ring will be automatically anti-inclined to its spring force gauge vertical alignment, and can understand whether the high-precision spring vertical force gauge is in the relative vertical state at any time through the bubble inside the sealed transparent cover whether in the center of liquid water, so that the spring force gauge force value of its spring force gauge is more accurate, at the same time, cooperate with the use of stable triangular block, when the hook is measured, most of the horizontal stress will be relieved by stable vertical slide rod and protection straight cylinder, the stress deformation of the straight hanging rod and the force spring in the horizontal direction is greatly reduced, thereby improving the accuracy of the measured value. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is the internal schematic view of the utility model;

[0014] Figure 3 It is the A place of the utility model Figure 2 Enlarged detail view;

[0015] Figure 4 It is the B place of the utility model Figure 2 Enlarged detail view;

[0016] Figure 5 It is the C place of the utility model Figure 2 Enlarged detail view;

[0017] Figure 6 It is the local structure of the utility model top view.

[0018] In the drawing: 1, shell; 2, built-in block; 3, ball; 4, connecting piece; 5, hanging buckle ring; 6, connecting rod; 7, force spring; 8, straight hanging rod; 9, stable triangular block; 10, hook; 11, protection straight cylinder; 12, stable vertical slide rod; 13, top hat; 14, sliding linkage; 15, slide rail; 16, reading index needle; 17, force gauge scale; 18, lifting disc; 19, sealed transparent cover; 20, liquid water; 21, bubble; 22, error ring disc line. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0020] As Figures 1-6The utility model provides a technical scheme: a high accuracy spring vertical force gauge, including shell 1, the front surface fixed mounting of shell 1 has the lifting tray 18, the top of lifting tray 18 is fixedly arranged with sealed transparent cover 19, the inside of sealed transparent cover 19 is provided with bubble 21, sealed transparent cover 19 is filled with liquid water 20, through the setting of bubble 21 and liquid water 20, to play the effect of the pressure balance principle through bubble 21 in liquid water 20 water, can be rapidly observed and understood whether the high accuracy spring vertical force gauge is in vertical state measurement effect through the convenience of bubble 21, the middle part of sealed transparent cover 19 is provided with error ring disc line 22, through the setting of error ring disc line 22, to play the effect of the safe inclination angle contrast of bubble 21 position, the front surface of shell 1 is set with opening, the front surface opening of shell 1 is fixedly installed with force gauge scale plate 17, the middle part of force gauge scale plate 17 is set with the bar opening for reading, the top recess of shell 1 is fixedly arranged with built-in block 2, the inside of built-in block 2 is rotatably provided with roll ball 3, the top of roll ball 3 is fixedly arranged with connecting piece 4, the top of connecting piece 4 is fixedly connected with the hanging buckle ring 5, through the setting of roll ball 3 and built-in block 2, to play the effect of the gravity swing of roll ball 3 in built-in block 2, no matter the hanging buckle ring 5 is hooked with any inclination angle, the high accuracy spring vertical force gauge component below the hanging buckle ring 5 is automatically adjusted vertically downward through gravity, when the hanging buckle ring 5 is lifted by finger, no matter how the finger is inclined to hold the hook hanging buckle ring 5, will automatically prevent the spring force gauge from being righted vertically, the bottom of built-in block 2 is fixedly connected with connecting rod 6, the bottom of connecting rod 6 is fixedly arranged with force spring 7, the bottom of force spring 7 is fixedly arranged with straight lifting rod 8, the bottom of straight lifting rod 8 is fixedly welded with stable triangular block 9, the surface of straight lifting rod 8 is sleeved with protection straight cylinder 11, the lower surface of protection straight cylinder 11 and the inner wall of shell 1 slide contact, the bottom end of protection straight cylinder 11 is along the mouth and the top surface of stable triangular block 9 contact, the top of stable triangular block 9 is fixedly arranged with two stable vertical slide rods 12, the surface of two stable vertical slide rods 12 and the inner wall of shell 1 slide connection, through the setting of protection straight cylinder 11 and stable vertical slide rod 12, when straight lifting rod 8 is stressed to stretch downward, protection straight cylinder 11 and stable vertical slide rod 12 are synchronous in the inside of shell 1 vertically downward slide displacement, to constrain the horizontal force of resistance when the suspension left and right sway, make the stress deformation of straight lifting rod 8 and force spring 7 in horizontal direction greatly reduce, thereby improved the effect of measurement value accuracy, the top of stable vertical slide rod 12 is fixedly arranged with top sleeve cap 13, the side of top sleeve cap 13 is fixedly installed with sliding linkage 14, the both sides of the inner wall of shell 1 are all fixedly connected with slide rail 15, the sliding block of sliding linkage 14 inserts the sliding slot of slide rail 15, and with the sliding slot inner wall of slide rail 15 slide connection, through the setting of sliding linkage 14 and slide rail 15, to play the effect of when stable vertical slide rod 12 slides downward displacement,The hook 10 is fixedly welded at the bottom of the stable triangular block 9, and the stable triangular block 9 is located in the groove at the bottom of the shell 1. Through the arrangement of the stable triangular block 9, the straight hanging rod 8 has higher stability when being vertically pulled down under force. The front of the straight hanging rod 8 is fixedly welded with the reading pointer 16 through the connecting piece, the pointer of the reading pointer 16 extends to the outside of the shell 1, and the back of the pointer of the reading pointer 16 is in sliding contact with the front of the force gauge plate 17.

[0021] When in use, the hanging buckle ring 5 is buckled by fingers, and other parts of the device are in a natural state. Then, the object to be measured is hung on the hook 10. Subsequently, due to the vertical constraint of gravity, the high-precision spring vertical force gauge component below the hanging buckle ring 5 is automatically adjusted vertically by the gravity swing of the rolling ball 3 in the built-in block 2. When the hanging buckle ring 5 is lifted by fingers, the spring force gauge is automatically prevented from tilting and is vertically adjusted, regardless of the tilting of the fingers. When the straight hanging rod 8 is pulled down under force, the straight cylinder 11 and the stable vertical sliding rod 12 are protected from synchronous vertical sliding displacement inside the shell 1, so as to constrain and resist the horizontal force generated when the hanging object swings left and right, so that the deformation of the straight hanging rod 8 and the force spring 7 in the horizontal direction is greatly reduced, thereby improving the accuracy of the measured value. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0022] As can be seen from the above, the high-precision spring vertical force gauge is automatically adjusted vertically by the gravity swing of the rolling ball 3 in the built-in block 2, so that the high-precision spring vertical force gauge component is automatically adjusted vertically by gravity, regardless of the tilting angle of the hanging buckle ring 5. When the hanging buckle ring 5 is lifted by fingers, the spring force gauge is automatically prevented from tilting and is vertically adjusted, regardless of the tilting of the fingers. At any time, whether the high-precision spring vertical force gauge is in a relative vertical state can be known by whether the bubble 21 in the sealed transparent cover 19 is in the center of the liquid water 20, so that the measured value of the spring force gauge is more accurate. In addition, the use of the stable triangular block 9 can reduce the horizontal force on the hook 10 when the hook is measured, so that the deformation of the straight hanging rod 8 and the force spring 7 in the horizontal direction is greatly reduced, thereby improving the accuracy of the measured value.

[0023] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0024] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A high-precision spring vertical force gauge comprising a housing (1), characterized in that: The front of the shell (1) is provided with an opening, the front of the shell (1) is fixedly installed with a force gauge scale plate (17), the middle of the force gauge scale plate (17) is provided with a strip opening for reading, the top groove of the shell (1) is fixedly provided with an embedded block (2), the inside of the embedded block (2) is rotatably provided with a rolling ball (3), the top of the rolling ball (3) is fixedly provided with a connecting piece (4), the top of the connecting piece (4) is fixedly connected with a lifting eye ring (5), the bottom of the embedded block (2) is fixedly connected with a connecting rod (6), the bottom of the connecting rod (6) is fixedly provided with a force spring (7), the bottom of the force spring (7) is fixedly provided with a straight lifting rod (8), the bottom of the straight lifting rod (8) is fixedly welded with a stable triangular block (9), the bottom of the stable triangular block (9) is fixedly welded with a hook (10), the stable triangular block (9) is located in the groove at the bottom of the shell (1), and the front of the straight lifting rod (8) is fixedly welded with a reading scale needle (16) through the connecting piece.

2. A high precision spring vertical force gauge according to claim 1, characterized in that: The top of the stable triangular block (9) is fixedly provided with two stable vertical sliding rods (12), the surfaces of the two stable vertical sliding rods (12) are slidably connected with the inner wall of the shell (1), the top of the stable vertical sliding rod (12) is fixedly provided with a top sleeve cap (13), the side of the top sleeve cap (13) is fixedly installed with a sliding linkage (14), the two sides of the inner wall of the shell (1) are fixedly connected with sliding rails (15), the sliding block of the sliding linkage (14) is inserted into the sliding groove of the sliding rail (15), and the sliding block is slidably connected with the inner wall of the sliding groove of the sliding rail (15).

3. A high precision spring vertical force gauge according to claim 1, characterized in that: The front of the shell (1) is fixedly installed with a lifting plate (18), the top of the lifting plate (18) is fixedly provided with a sealed transparent cover (19), the inside of the sealed transparent cover (19) is provided with a bubble (21), the inside of the sealed transparent cover (19) contains liquid water (20), and the middle of the sealed transparent cover (19) is provided with an error ring disc line (22).

4. A high precision spring vertical force gauge as claimed in claim 1, wherein: The surface of the straight lifting rod (8) is sleeved with a protective straight cylinder (11), the lower surface of the protective straight cylinder (11) is in sliding contact with the inner wall of the shell (1), and the bottom end of the protective straight cylinder (11) is in contact with the top surface of the stable triangular block (9).

5. A high precision spring vertical force gauge as claimed in claim 1, wherein: The pointer of the reading scale needle (16) extends to the outside of the shell (1), and the back of the pointer of the reading scale needle (16) is in sliding contact with the front of the force gauge scale plate (17).

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