CN215524885U - Lever type force measuring device with human body scale calibration function - Google Patents
Lever type force measuring device with human body scale calibration function Download PDFInfo
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- CN215524885U CN215524885U CN202122346629.XU CN202122346629U CN215524885U CN 215524885 U CN215524885 U CN 215524885U CN 202122346629 U CN202122346629 U CN 202122346629U CN 215524885 U CN215524885 U CN 215524885U
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Abstract
The utility model provides a lever type force measuring device with a human body scale calibration function. When general tension and pressure tests are carried out, the lever and the lever lifting mechanism are in a separated state, a to-be-tested piece is only required to be installed on the overhead type stress application mechanism, and loading force can be obtained by multiplying the gravity of a loaded weight by the amplification ratio of the lever. When the human body scale is calibrated, the lever and the supporting mechanism are lifted upwards through the lever lifting mechanism, and then the human body scale is placed on the rack base below the supporting mechanism. The lever type force measuring device not only keeps the functions of tension and pressure test of the traditional force measuring device, but also has the function of calibrating the human body scale, thereby greatly reducing the operation difficulty of calibrating the human body scale. The lever type force measuring device is light in self weight and convenient to move and transport.
Description
Technical Field
The utility model relates to the technical field of force value detection, in particular to a lever type force measuring device with a human body scale calibration function.
Background
The lever type force measuring device utilizes the lever balance principle and detects the force value of a large force value by the aid of a weight with a small force value. Lever-type force measuring devices generally comprise a lever, a support mechanism, a weight mechanism and a force application mechanism. The supporting mechanism is used for supporting the lever as a fulcrum, the weight of the weight mechanism is suspended at one end of the lever, and the force applying mechanism applies acting force to the other end of the lever to balance the lever.
The human body scale is a human body weighing instrument which is characterized by applying elements capable of generating elastic deformation, and the maximum weighing capacity of the universal human body scale is 150 kg. The current way to calibrate a human scale is generally as follows: from zero point, the weights are loaded from small to large to maximum weighing, generally no less than 5 calibration measurement points. That is, the total weight of the standard weight for calibrating the human body scale needs to reach at least 150kg, and for calibration operation, the weight is heavy, the moving difficulty is high, and the calibration labor intensity is high.
The existing lever-type force measuring device cannot be directly used for calibrating the human body scale, and the main reason is that the human body scale is large in area, and particularly the human body scale with the height measuring function cannot be stably placed on a test piece pressure head of the lever-type force measuring device.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a lever type force measuring device with a human body scale calibration function.
In order to achieve the purpose, the technical scheme adopted by the utility model for solving the technical problems is as follows: a lever-type force measuring device with human body scale calibration function comprises:
a frame;
a lever;
the supporting mechanism is used for supporting the lever, and the top end of the supporting mechanism is connected to the fulcrum position of the lever;
the lever lifting mechanism is used for driving the lever and the supporting mechanism to vertically move upwards so as to enable the supporting mechanism to be separated from the rack base;
the weight mechanism comprises a weight group and a weight loading mechanism, the weight group is hung at one end of the lever, and the weight loading mechanism is used for adjusting the number of weights loaded on the lever in the weight group;
the top-mounted stress application mechanism is arranged at the top end of the rack and is used for generating driving force for promoting the balance of the lever.
By adopting the technical scheme of the utility model, when the force measuring device is used for carrying out general tension and pressure tests, the lever and the lever lifting mechanism are in a separated state, a to-be-tested piece is only required to be installed on the overhead force applying mechanism, and the loading force can be obtained by multiplying the gravity of the loaded weight by the amplification ratio of the lever. When the force measuring device is used for calibrating the human body scale, the lever and the supporting mechanism are lifted upwards through the lever lifting mechanism, then the human body scale is placed on the rack base below the supporting mechanism, then the lever and the supporting mechanism are put down through the lever lifting mechanism, the lever lifting mechanism is separated from the lever, the initial stress of the human body scale is the gravity of the lever and the supporting mechanism, one weight is loaded at each subsequent time, the force increment obtained on the human body scale is the gravity of the weight and the balance force applied by the overhead type force applying mechanism, and the balance force is equal to the product of the gravity of the loaded weight and the amplification ratio of the lever. The lever type force measuring device not only keeps the functions of tension and pressure test of the traditional force measuring device, but also has the function of calibrating the human body scale, thereby greatly reducing the operation difficulty of calibrating the human body scale. The lever type force measuring device is light in self weight and convenient to move and transport.
Further, the lever lift mechanism includes:
the upper plate is horizontally arranged at the top of the rack;
the chuck is provided with a first positioning hole and a second positioning hole which penetrate through the chuck in the horizontal direction;
a third positioning hole and a fourth positioning hole which penetrate through the lever in the horizontal direction are formed in the lever;
the first pin shaft is detachably inserted between the first positioning hole and the third positioning hole;
the second pin shaft is detachably inserted in front of the second positioning hole and the fourth positioning hole;
a guide mechanism disposed between the chuck and the upper plate;
and the lifting mechanism is arranged between the chuck and the upper plate and drives the chuck and the lever to move vertically along the guide mechanism.
By adopting the preferable scheme, the position is ensured to be kept stable in the lever lifting process.
Furthermore, the guide mechanism comprises a guide sleeve and a guide rod, the guide sleeve is fixed on the upper plate, the guide rod is vertically installed at the top end of the chuck, and the guide rod penetrates through the guide sleeve.
Furthermore, elevating system includes coaxial rotary joint and screw mechanism, screw mechanism's lead screw warp coaxial rotary joint rotationally installs on the chuck, screw mechanism's nut is installed on the upper plate.
Further, coaxial rotary joint is including keeping off retaining ring lid, axle sleeve and stopper, the retaining ring is covered and is equipped with the axle sleeve mounting hole and is located the stopper mounting groove of axle sleeve mounting hole below, the retaining ring lid is fixed in on the chuck, the axle sleeve is installed in the axle sleeve mounting hole, the stopper sets up in the stopper mounting groove, lead screw mechanism's lead screw lower extreme is worn to locate the axle sleeve hole, the stopper is through locking screw connection on the terminal surface under the lead screw.
By adopting the preferable scheme, the lifting of the lever and the supporting mechanism is more stable and labor-saving.
Furthermore, a first blocking wall and a second blocking wall which extend downwards are arranged on the chuck, and the distance between the first blocking wall and the second blocking wall is slightly larger than the thickness of the lever.
By adopting the preferable scheme, the lever can be reliably regulated, and the phenomenon that the falling point of the supporting mechanism is unstable due to the left-right swing of the lever is prevented.
Further, the supporting mechanism comprises a linear supporting mechanism, a supporting column and a supporting seat.
Further, linear supporting mechanism includes that main arbor, main sword are taken advantage of and fulcrum latch segment, main arbor has most advanced cutting part down, the main sword is taken advantage of and is equipped with the V-arrangement groove, the cutting part of main arbor with the contact of the V-arrangement groove bottom line that the main sword was taken advantage of, the fulcrum latch segment is connected the main sword is taken advantage of, still be equipped with on the fulcrum latch segment and be used for the roof pressure the puller bolt of main arbor upper end.
By adopting the preferable scheme, the lever fulcrum is ensured to keep higher swing freedom degree, and the balance accuracy is improved.
Further, the support column is of a hollow rectangular tube structure.
Furthermore, a reinforcing rib plate is arranged between the supporting column and the supporting seat.
By adopting the preferable scheme, the weight of the supporting mechanism is reduced, and the supporting mechanism is ensured to keep higher structural strength.
Further, the overhead type force applying mechanism comprises:
the lifting driving mechanism is arranged on the rack;
the first reaction frame comprises a first upper plate, a first lower plate and two first upright posts, the two first upright posts are vertically arranged between the first upper plate and the first lower plate, and the first upper plate is arranged on a lifting rod of the lifting driving mechanism;
the second reaction frame comprises a second upper plate, a second lower plate and two second upright columns, the two second upright columns are vertically arranged between the second upper plate and the second lower plate, and the second upright columns are also arranged on the first lower plate in a penetrating manner;
and the force application connecting mechanism is connected between the second upper plate and the lever.
By adopting the preferable scheme, when the lever type force measuring device carries out tension detection, the detected device is arranged between the stress application connecting mechanism and the first lower plate; when the lever type force measuring device is used for pressure detection, the detected device is arranged between the first lower plate and the second lower plate; when the lever type force measuring device is used for detecting a human body scale, the first lower plate is directly connected to the lower end of the stress application connecting mechanism through a bolt. Can be suitable for the stress application balance of three modes.
Further, the stress application connecting mechanism comprises a first cutter shaft and two first cutter carriages, the first cutter shaft is fixedly installed on the lever, the two ends of the first cutter shaft are respectively provided with a cutter with an upward pointed end, the two first cutter carriages are provided with first V-shaped cutter grooves, and the cutter of the first cutter shaft is matched with the bottoms of the first V-shaped cutter grooves of the first cutter carriages.
Furthermore, the stress application connecting mechanism also comprises a connecting body, a connecting sleeve and a cross-shaped knife riding block, and the two first knife riding seats are respectively and fixedly connected with the upper end of the connecting body; the lower end of the connecting body is provided with a downward U-shaped opening, a second blade shaft is arranged between two wall bodies of the U-shaped opening of the connecting body, the second blade shaft is provided with a blade with an upward pointed end, the lower surface of the cross-shaped blade carrying block is provided with a second V-shaped blade groove with a downward opening, and the blade of the second blade shaft is matched with the groove body of the second V-shaped blade groove; the upper end of the connecting sleeve is provided with an upward U-shaped opening, a third blade shaft is arranged between two wall bodies of the U-shaped opening of the connecting sleeve, the third blade shaft is provided with a blade with a downward tip, the upper surface of the cross-shaped blade block is provided with a third V-shaped blade groove with an upward opening, and the blade of the third blade shaft is matched with the groove body of the third V-shaped blade groove.
Furthermore, the first blade shaft is perpendicular to the second blade shaft, and the second blade shaft is perpendicular to the third blade shaft.
By adopting the preferable scheme, the verticality of the force applied to the lever by the overhead type force applying mechanism is ensured.
Further, the lifting driving mechanism is a worm and gear lifting mechanism.
By adopting the preferable scheme, the stress application stability is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic view of the lever structure;
FIG. 3 is a schematic structural view of the lever lift mechanism;
FIG. 4 is a cross-sectional view of the lever lift mechanism;
FIG. 5 is a schematic diagram of a top-mounted force applying mechanism;
FIG. 6 is a schematic structural view of a force applying connection mechanism;
FIG. 7 is a top view of the force attachment mechanism;
FIG. 8 is a sectional view taken along line A-A of FIG. 7;
FIG. 9 is a sectional view taken along line B-B of FIG. 7;
FIG. 10 is a schematic structural view of the support mechanism;
FIG. 11 is a schematic view of a body scale placement;
FIG. 12 is a force diagram of a body scale calibration.
Names of corresponding parts represented by numerals and letters in the drawings:
10-a frame; 20-a lever; 201-a third positioning hole; 202-a fourth positioning hole; 30-a support mechanism; 31-a linear support mechanism; 311-main cutter shaft; 312-main ride; 313-fulcrum locking block; 32-support column; 33-a support base; 34-a reinforcing rib; 40-lever lift mechanism; 41-upper layer plate; 42-a chuck; 421-a first positioning hole; 422-a second positioning hole; 423-first blocking wall; 424-a second blocking wall; 43-a first pin; 44-a second pin; 45-a guide mechanism; 451-guide sleeves; 452-a guide bar; 46-a lifting mechanism; 461-screw mandrel; 462-a nut; 463-retainer cap; 464-shaft sleeve; 465-a limiting block; 50-a weight mechanism; 51-weight group; 52-weight loading mechanism; 60-overhead type stress application mechanism; 61-lifting driving mechanism; 62-a first reaction frame; 621-a first upper plate; 622 — first lower plate; 623-a first upright; 63-a second reaction frame; 631-a second upper plate; 632 — a second lower plate; 633-a second upright; 64-a force application connecting mechanism; 641-a first blade shaft; 642-first knife holder; 643-a linker; 644-connecting sleeve; 645-cross-shaped block; 646-a second blade axis; 647-a third blade axis; 90-human body scale; 91-backing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, one embodiment of the present invention is: a lever-type force measuring device with human body scale calibration function comprises:
a frame 10;
a lever 20;
a support mechanism 30 for supporting the lever 20, a top end of the support mechanism 30 being connected to a fulcrum position of the lever 20;
the lever lifting mechanism 40 is used for driving the lever 20 and the supporting mechanism 30 to vertically move upwards so as to enable the supporting mechanism 30 to be separated from the base of the frame 10;
the weight mechanism 50 comprises a weight group 51 and a weight loading mechanism 52, the weight group 50 is hung at one end of the lever 20, and the weight loading mechanism 52 is used for adjusting the number of weights loaded on the lever in the weight group 51;
and an overhead type force applying mechanism 60 installed at the top end of the frame 10, the overhead type force applying mechanism 60 for generating a driving force for balancing the lever.
When the force measuring device is used for carrying out general tension and pressure tests, the lever and the lever lifting mechanism are in a separated state, a to-be-tested piece is only required to be installed on the overhead force applying mechanism, and the loading force can be obtained by multiplying the gravity of a loaded weight by the amplification ratio of the lever. When the force measuring device is used for calibrating the human body scale, the lever and the supporting mechanism are lifted upwards through the lever lifting mechanism, as shown in fig. 11, in order to improve the placing stability of the human body scale, a base plate 91 is placed on a base of the rack, after the human body scale is placed, the lever and the supporting mechanism are put down through the lever lifting mechanism, then the lever lifting mechanism is separated from the lever, and the human body scale is calibrated. As shown in FIG. 12, the initial force of the scale is the lever gravity G2And gravity G of the supporting mechanism3When a weight is loaded, the increment of force obtained by the human body scale is the gravity G of the weight1Balance force F applied by overhead type stress application mechanism1Sum of balance forces F1Equal to the weight gravity G of the loaded weight1Multiplied by the leverage magnification ratio.
The beneficial effect of adopting above-mentioned technical scheme is: the lever type force measuring device not only keeps the functions of tension and pressure test of the traditional force measuring device, but also has the function of calibrating the human body scale, thereby greatly reducing the operation difficulty of calibrating the human body scale. The lever type force measuring device is light in self weight and convenient to move and transport.
In other embodiments of the present invention, as shown in fig. 1-4, the lever-lift mechanism 40 comprises:
an upper plate 41 horizontally installed on the top of the frame 10;
the chuck 42, the chuck 42 is provided with a first positioning hole 421 and a second positioning hole 422 which penetrate horizontally;
a third positioning hole 201 and a fourth positioning hole 202 which penetrate through the lever 20 in the horizontal direction are formed;
a first pin shaft 43 detachably inserted between the first positioning hole 421 and the third positioning hole 201;
a second pin shaft 44 detachably inserted in front of the second positioning hole 422 and the fourth positioning hole 202;
a guide mechanism 45 provided between the chuck 42 and the upper plate 41;
and the lifting mechanism 46 is arranged between the chuck 42 and the upper plate 41, and the lifting mechanism 46 drives the chuck 42 to vertically move up and down along the guide mechanism 45. The beneficial effect of adopting above-mentioned technical scheme is: the lever lifting process position is ensured to be stable.
In other embodiments of the present invention, as shown in fig. 3 to 4, the guide mechanism 45 includes a guide sleeve 451 and a guide rod 452, the guide sleeve 451 is fixed to the upper plate 41, the guide rod 452 is vertically installed at the top end of the chuck 42, and the guide rod 452 penetrates the guide sleeve 451. The elevating mechanism 46 includes a coaxial rotary joint through which a lead screw 461 of a lead screw mechanism is rotatably mounted on the chuck 42, and a nut 462 of the lead screw mechanism is mounted on the upper plate 41. The coaxial rotary joint comprises a blocking ring cover 463, a shaft sleeve 464 and a limiting block 465, wherein the blocking ring cover 463 is provided with a shaft sleeve mounting hole and a limiting block mounting groove located below the shaft sleeve mounting hole, the blocking ring cover 463 is fixed on the chuck 42, the shaft sleeve 464 is mounted in the shaft sleeve mounting hole, the limiting block 465 is arranged in the limiting block mounting groove, the lower end of a lead screw 461 of the lead screw mechanism penetrates through an inner hole of the shaft sleeve 464, and the limiting block 465 is connected to the lower end face of the lead screw 461 through a locking screw. The beneficial effect of adopting above-mentioned technical scheme is: the lifting of the lever and the supporting mechanism is more stable and labor-saving.
In other embodiments of the present invention, as shown in fig. 3, the chuck 42 is provided with a first blocking wall 423 and a second blocking wall 424 extending downward, and the distance between the first blocking wall 423 and the second blocking wall 424 is slightly larger than the thickness of the lever 20. The beneficial effect of adopting above-mentioned technical scheme is: the lever can be reliably regulated, and the unstable falling point of the supporting mechanism caused by the left-right swing of the lever is prevented.
In other embodiments of the present invention, as shown in fig. 10, the support mechanism 30 includes a linear support mechanism 31, a support column 32, and a support base 33. The linear supporting mechanism 31 comprises a main knife shaft 311, a main knife holder 312 and a fulcrum locking block 313, the main knife shaft 311 is provided with a blade part with a downward tip end, a V-shaped groove is formed in the main knife holder 312, the blade part of the main knife shaft 311 is in bottom line contact with the V-shaped groove of the main knife holder 312, the fulcrum locking block 313 is connected to the main knife holder 312, and a jacking bolt for jacking the upper end of the main knife shaft 311 is further arranged on the fulcrum locking block 313. The beneficial effect of adopting above-mentioned technical scheme is: the lever fulcrum is ensured to keep higher swing freedom degree, and the lever balance accuracy is improved; when the lever is lifted, the whole supporting mechanism can also be lifted integrally with the lever.
In other embodiments of the present invention, as shown in FIG. 10, the support post 32 is a hollow rectangular tube structure. A reinforcing rib 34 is provided between the support column 32 and the support seat 33. The beneficial effect of adopting above-mentioned technical scheme is: not only reduces the weight of the supporting mechanism, but also ensures that the supporting mechanism keeps higher structural strength.
In other embodiments of the present invention, the weight mechanism 50 includes a weight group 51 and a weight loading mechanism 52, the weight group 51 includes a plurality of weights connected in series, the weights are connected by hanging nails, the weight loading mechanism includes a lifting platform and a driving mechanism for driving the lifting platform to lift, the lifting platform is disposed under the weights, the lifting platform ascends to gradually transfer the weight gravity to the lifting platform, so as to gradually unload the weights on the lever, and conversely, the lifting platform descends to gradually load the weight gravity to the weight hooks of the lever, so as to gradually load the weights.
In other embodiments of the present invention, as shown in fig. 5-9, the overhead force applying mechanism 60 comprises:
a lifting drive mechanism 61 mounted on the frame 10;
a first reaction frame 62, which comprises a first upper plate 621, a first lower plate 622 and two first upright posts 623, wherein the two first upright posts 623 are vertically arranged between the first upper plate 621 and the first lower plate 622, and the first upper plate 621 is arranged on a lifting rod of the lifting driving mechanism 61;
a second reaction frame 63, which includes a second upper plate 631, a second lower plate 632 and two second upright posts 633, wherein the two second upright posts 633 are vertically installed between the second upper plate 631 and the second lower plate 632, and the second upright posts 633 are further inserted into the first lower plate 622;
and a force-applying connecting mechanism 64 connected between the second upper plate 631 and the lever 20.
The beneficial effect of adopting above-mentioned technical scheme is: when the lever type force measuring device is used for detecting the tension, the detected device is arranged between the stress application connecting mechanism and the first lower plate; when the lever type force measuring device is used for pressure detection, the detected device is arranged between the first lower plate and the second lower plate; when the lever type force measuring device is used for detecting a human body scale, the first lower plate is directly connected to the lower end of the stress application connecting mechanism through a bolt. Can be suitable for the stress application balance of three modes.
As shown in fig. 6 to 9, in other embodiments of the present invention, the forcing connection mechanism 64 includes a first blade shaft 641 and two first blade carriages 642, the first blade shaft 641 is fixedly installed on the lever 20, both ends of the first blade shaft 641 are provided with blades with upward tips, the two first blade carriages 642 are provided with first V-shaped blade grooves, and the blades of the first blade shaft 641 are matched with the bottoms of the first V-shaped blade grooves of the first blade carriages 642. The boosting connecting mechanism 64 further comprises a connecting body 643, a connecting sleeve 644 and a cross knife block 645, wherein the two first knife holders 642 are fixedly connected with the upper end of the connecting body 643 respectively; a downward U-shaped opening is formed in the lower end of the connecting body 643, a second blade shaft 646 is arranged between two wall bodies of the U-shaped opening of the connecting body 643, a blade with an upward pointed end is arranged on the second blade shaft 646, a second V-shaped blade groove with a downward opening is formed in the lower surface of the cross blade block 645, and the blade of the second blade shaft 646 is matched with the second V-shaped blade groove body; an upward U-shaped opening is formed in the upper end of the connecting sleeve 644, a third blade shaft 647 is arranged between two wall bodies of the U-shaped opening of the connecting sleeve 644, a blade with a downward pointed end is arranged on the third blade shaft 647, a third V-shaped blade groove with an upward opening is formed in the upper surface of the cross-shaped blade block 645, and the blade of the third blade shaft 647 is matched with the groove body of the third V-shaped blade groove. The first blade shaft 641 is disposed perpendicular to the second blade shaft 646, and the second blade shaft 646 is disposed perpendicular to the third blade shaft 647. The beneficial effect of adopting above-mentioned technical scheme is: the verticality of the force applied to the lever by the overhead force applying mechanism is ensured.
In other embodiments of the present invention, the elevating drive mechanism 61 is a worm gear elevating mechanism. The beneficial effect of adopting above-mentioned technical scheme is: the stress application stability is improved.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. The utility model provides a have lever measuring force device of human balance calibration function concurrently which characterized in that includes:
a frame;
a lever;
the supporting mechanism is used for supporting the lever, and the top end of the supporting mechanism is connected to the fulcrum position of the lever;
the lever lifting mechanism is used for driving the lever and the supporting mechanism to vertically move upwards so as to enable the supporting mechanism to be separated from the rack base;
the weight mechanism comprises a weight group and a weight loading mechanism, the weight group is hung at one end of the lever, and the weight loading mechanism is used for adjusting the number of weights loaded on the lever in the weight group;
the top-mounted stress application mechanism is arranged at the top end of the rack and is used for generating driving force for promoting the balance of the lever.
2. A lever-type force measuring device with a human body scale calibration function as claimed in claim 1, wherein said lever elevating mechanism comprises:
the upper plate is horizontally arranged at the top of the rack;
the chuck is provided with a first positioning hole and a second positioning hole which penetrate through the chuck in the horizontal direction;
a third positioning hole and a fourth positioning hole which penetrate through the lever in the horizontal direction are formed in the lever;
the first pin shaft is detachably inserted between the first positioning hole and the third positioning hole;
the second pin shaft is detachably inserted in front of the second positioning hole and the fourth positioning hole;
a guide mechanism disposed between the chuck and the upper plate;
and the lifting mechanism is arranged between the chuck and the upper plate and drives the chuck and the lever to move vertically along the guide mechanism.
3. A lever type force measuring device with human body scale calibration function as claimed in claim 2, wherein the guiding mechanism comprises a guiding sleeve and a guiding rod, the guiding sleeve is fixed on the upper plate, the guiding rod is vertically installed on the top end of the chuck, and the guiding rod is inserted through the guiding sleeve.
4. A lever type force measuring device with a human body scale calibration function as claimed in claim 2, wherein said elevating mechanism comprises a coaxial rotary joint and a screw mechanism, a screw rod of said screw mechanism is rotatably mounted on said chuck via said coaxial rotary joint, and a nut of said screw mechanism is mounted on said upper plate.
5. The lever-type force measuring device with the function of calibrating the human body scale as claimed in claim 4, wherein the coaxial rotary joint comprises a retainer ring cover, a shaft sleeve and a limiting block, the retainer ring cover is provided with a shaft sleeve mounting hole and a limiting block mounting groove below the shaft sleeve mounting hole, the retainer ring cover is fixed on the chuck, the shaft sleeve is mounted in the shaft sleeve mounting hole, the limiting block is arranged in the limiting block mounting groove, the lower end of a screw rod of the screw rod mechanism is arranged in the shaft sleeve inner hole in a penetrating manner, and the limiting block is connected to the lower end face of the screw rod through a locking screw.
6. A lever type force measuring device with human body scale calibration function as claimed in claim 5, wherein said chuck is provided with a first blocking wall and a second blocking wall extending downwards, and the distance between said first blocking wall and said second blocking wall is slightly larger than the thickness of said lever.
7. A lever-type force measuring device with a human body scale calibration function as claimed in claim 1, wherein the supporting mechanism comprises a linear supporting mechanism, a supporting column and a supporting seat.
8. A lever type force measuring device with a human body scale calibration function as claimed in claim 7, wherein the linear supporting mechanism comprises a main knife shaft, a main knife rest and a fulcrum locking block, the main knife shaft has a blade portion with a downward tip, the main knife rest is provided with a V-shaped groove, the blade portion of the main knife shaft is in line contact with the bottom of the V-shaped groove of the main knife rest, the fulcrum locking block is connected to the main knife rest, and the fulcrum locking block is further provided with a tightening bolt for pressing the upper end of the main knife shaft.
9. A lever-type force measuring device with a human body scale calibration function as claimed in claim 8, wherein the supporting column is a hollow rectangular tube structure.
10. A lever-type force measuring device with a human body scale calibration function as claimed in claim 1, wherein the top-mounted force applying mechanism comprises:
the lifting driving mechanism is arranged on the rack;
the first reaction frame comprises a first upper plate, a first lower plate and two first upright posts, the two first upright posts are vertically arranged between the first upper plate and the first lower plate, and the first upper plate is arranged on a lifting rod of the lifting driving mechanism;
the second reaction frame comprises a second upper plate, a second lower plate and two second upright columns, the two second upright columns are vertically arranged between the second upper plate and the second lower plate, and the second upright columns are also arranged on the first lower plate in a penetrating manner;
and the force application connecting mechanism is connected between the second upper plate and the lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346629.XU CN215524885U (en) | 2021-09-27 | 2021-09-27 | Lever type force measuring device with human body scale calibration function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346629.XU CN215524885U (en) | 2021-09-27 | 2021-09-27 | Lever type force measuring device with human body scale calibration function |
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| CN215524885U true CN215524885U (en) | 2022-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790830A (en) * | 2021-09-27 | 2021-12-14 | 上海市计量测试技术研究院 | Lever type force measuring device with human body scale calibration function |
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2021
- 2021-09-27 CN CN202122346629.XU patent/CN215524885U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790830A (en) * | 2021-09-27 | 2021-12-14 | 上海市计量测试技术研究院 | Lever type force measuring device with human body scale calibration function |
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