CN210664836U - Portable force measuring device - Google Patents
Portable force measuring device Download PDFInfo
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- CN210664836U CN210664836U CN201921520239.6U CN201921520239U CN210664836U CN 210664836 U CN210664836 U CN 210664836U CN 201921520239 U CN201921520239 U CN 201921520239U CN 210664836 U CN210664836 U CN 210664836U
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Abstract
The utility model discloses a portable force measuring device, which comprises a bottom plate, a fixed clamping device, a leveling device, a movable clamping device, a pulley block mechanism and a dynamometer; the fixed clamping device and the movable clamping device are respectively used for fixing two ends of a coiled material test piece, the fixed clamping device is arranged at one end of the bottom plate, the pulley block mechanism is arranged at the other end of the bottom plate, one end of the pulley block mechanism is connected with the movable clamping device, and the other end of the pulley block mechanism is connected with the dynamometer. The pulley block mechanism arranged in the utility model can effectively reduce the force value borne by the dynamometer, and reduce the influence of incapability of testing or inaccurate testing caused by overlarge force value or overlarge instantaneous force value; the leveling device can prevent the force value direction change in the process that the coiled material test piece is stretched, so that the test force can be carried out in the same direction, and the accuracy of the stripping force value obtained by the test is higher; the utility model discloses simple structure, convenient operation can be used to test waterproofing membrane bonding strength under the outdoor actual construction condition.
Description
Technical Field
The utility model relates to a waterproofing membrane technical field especially relates to a portable measuring force device.
Background
The waterproof effect of the waterproof coiled material is not only related to the self quality of the coiled material, but also related to the lap joint edge of the coiled material after the construction of the coiled material and the adhesion firmness of the coiled material and the base layer. If the two waterproof rolls and the roll and the base layer are bonded firmly and are not sealed tightly, a series of water leakage problems such as water channeling and the like are directly caused, so that the waterproof effect of the rolls is lost. Thus, the national standards characterize the bond strength between waterproofing sheets or to substrates with peel strength. Although the state sets corresponding standards to standardize the product quality, the standards can only test the material performance under the standard conditions of the laboratory, and the standards obviously show no worry about the bonding effect of the waterproof coiled material actually applied to the non-standard test environments such as the outdoor environment and the like.
At present, the method for evaluating the bonding effect of the coiled material under construction application is rough, and the state and the industry have no corresponding evaluation standards. Currently, there are two main methods for evaluation in the industry: 1) uncovering the lap joint part of the coiled material and the base layer or the coiled material by using equipment such as a clamping device (such as a pliers), judging the magnitude of the bonding force value by means of induction, and observing the adhesion effect of the bonding part of the coiled material; 2) one side of the coil is fixed by a simple clamp, the clamp is connected by a dynamometer and the peeling test is carried out under the action of force, for example, the clamp in CN207900695U portable clamp is connected with the coil, the other end of the clamp is connected with the dynamometer, a tension meter is held and the coil is peeled by force.
The two methods for evaluating the bonding effect of the coiled material in outdoor construction cannot judge the bonding effect of different coiled materials by data and cannot judge whether the bonding effect meets the objective and client requirements according to the force induction evaluation method. Compared with the first test method, the evaluation method of directly clamping and stretching by using the simple dynamometer has the advantages that certain test data can be obtained, and the evaluation method has certain progress. However, the following disadvantages still exist in this test method: 1) the direction of the force; different testers exert force along different testing directions, and testing results are different; 2) testing the adaptability; in different environments, the test is inaccurate when the bonding strength of the waterproof roll is too large or too small, and if the bonding strength of the waterproof roll is more than the force application range of people, the peeling test cannot be carried out; if the stripping force value is too small, the influence of errors such as the self gravity of the instrument on the test result is large during the test; 3) testing accuracy; under the certain circumstances, waterproofing membrane and basic unit are not fully glued, and upper coiled material and basic unit do not realize completely attached, and under this condition, in the test process, the coiled material is at first normally peeled off, and the too big condition of power value in the twinkling of an eye easily takes place at blank non-bonding position, influences the accurate nature of test data.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable measuring force device to the not enough of above-mentioned prior art.
In order to solve the above problems, the utility model adopts the following technical proposal:
a portable force measuring device comprises a bottom plate, a fixed clamping device, a movable clamping device, a pulley block mechanism and a dynamometer; the fixed clamping device and the movable clamping device are respectively used for fixing two ends of a coiled material test piece, the fixed clamping device is arranged at one end of the bottom plate, the pulley block mechanism is arranged at the other end of the bottom plate, one end of the pulley block mechanism is connected with the movable clamping device, and the other end of the pulley block mechanism is connected with the dynamometer.
Further, fixed clamping device includes fixed punch holder and fixed lower plate, fixed punch holder and fixed lower plate pass through the fixed column set up in on the bottom plate, fixed punch holder and fixed lower plate slide set up in on the fixed column, the top of fixed column is provided with the limiting plate, the both ends of fixed punch holder are provided with an adjusting bolt, an adjusting bolt's lower extreme passes be provided with an adjusting nut behind the fixed lower plate, fixed lower plate slide set up in an adjusting bolt is last.
Further, the movable clamping device comprises a movable upper clamping plate and a movable lower clamping plate, second adjusting bolts are arranged at two ends of the movable upper clamping plate, the lower ends of the second adjusting bolts penetrate through second adjusting nuts arranged behind the movable lower clamping plate, and the movable lower clamping plate is arranged on the second adjusting bolts in a sliding mode.
Furthermore, the pulley block mechanism comprises a fixed pulley block fixedly arranged on the bottom plate, a movable pulley block arranged below the fixed pulley block and a rope wound between the fixed pulley block and the movable pulley block, the fixed pulley block comprises one or more fixed pulleys arranged along the vertical direction, the movable pulley block comprises one or more movable pulleys arranged along the vertical direction, a hook body connected with the movable clamping device is arranged at the lower end of the movable pulley block, and the upper end of the rope is connected with the dynamometer.
Furthermore, the pulley block mechanism outer cover is provided with a pulley block box body, the upper end and the lower end of the pulley block box body are respectively provided with a connecting hole, the fixed pulley block is fixed on the upper part of the pulley block box body, the center of the movable pulley is provided with a guide shaft, the movable pulley is rotatably connected with the guide shaft through a bearing, the side wall corresponding to the guide shaft in the pulley block box body is provided with a guide groove, and the guide shaft is slidably arranged in the guide groove.
Further, the width of the guide groove is larger than the diameter of the guide shaft, and the guide shaft is not in contact with the side wall of the guide groove.
Further, still including set up in leveling device on the bottom plate, it is located to look for the leveling device between fixed clamping device and the activity clamping device, and be close to activity clamping device's one end, the leveling device is including making level the upper part and making level down, it is provided with the confession to make level the upper part and make level down between the piece the clearance that the coiled material test piece passes through.
Furthermore, the center of the gap between the upper leveling piece and the lower leveling piece and the center of the gap between the upper fixing clamp plate and the lower fixing clamp plate are on the same horizontal line.
Furthermore, the leveling upper part and the leveling lower part are round rollers, two ends of each round roller are arranged on the bottom plate through bearing seats, and the round rollers are rotatably connected with the bearing seats.
Furthermore, the leveling upper part and the leveling lower part are arranged on the bottom plate through a third adjusting bolt.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the pulley block mechanism arranged in the utility model can effectively reduce the force value borne by the dynamometer (human power), and reduce the influence of incapability of testing or inaccurate testing caused by overlarge force value or overlarge instantaneous force value; the leveling device can prevent the force value direction from changing in the process that the coiled material test piece is stretched, so that the test force can be carried out in the same direction, and the accuracy of the stripping force value obtained by the test is higher; the utility model discloses simple structure, convenient operation can be used to test waterproofing membrane bonding strength under the outdoor actual construction condition.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a side view of the present invention;
FIG. 3 is a schematic structural view of the middle fixing and clamping device of the present invention;
FIG. 4 is a schematic structural view of the movable clamping device of the present invention;
fig. 5 is a schematic structural view of the pulley block mechanism in the present invention;
fig. 6 is a schematic structural view of the leveling device of the present invention.
In the figure: 1. a base plate; 2. fixing the clamping device; 21. fixing an upper clamping plate; 22. fixing a lower splint; 23. fixing a column; 24. a limiting plate; 25. a first adjusting bolt; 26. a first adjusting nut; 3. a movable clamping device; 31. a movable upper splint; 32. a movable lower splint; 33. a second adjusting bolt; 34. a second adjusting nut; 4. a pulley block mechanism; 41. a fixed pulley; 42. a movable pulley; 43. a cord; 44. a hook body; 45. a pulley block box body; 46. a guide shaft; 47. a guide groove; 5. a force gauge; 6. a coiled material test piece; 7. a leveling device; 71. leveling the upper part; 72. leveling and discharging; 73. a bearing seat; 74. and a third adjusting bolt.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-6, a portable force measuring device according to an embodiment of the present invention includes a bottom plate 1, a fixed clamping device 2, a movable clamping device 3, a pulley block mechanism 4, and a dynamometer 5; the base plate 1 is the basis of whole device, and the material chooses for use non-deformable and damaged metal material, fixed clamping device 2 and activity clamping device 3 are used for the both ends of fixed coiled material test piece 6 respectively, and coiled material test piece 6 is two and has lapped coiled material, fixed clamping device 2 fixed set up in the one end of base plate 1, fixed pulley fixed set up in assembly pulley mechanism 4 in the other end of base plate 1, the one end of assembly pulley mechanism 4 with activity clamping device 3 is connected, the other end of assembly pulley mechanism 4 with dynamometer 5 connects.
Further, the fixed clamping device 2 comprises a fixed upper clamping plate 21 and a fixed lower clamping plate 22, the fixed upper clamping plate 21 and the fixed lower clamping plate 22 are of a planar structure, the structure can effectively and firmly clamp a test piece within 500N, the fixed upper clamping plate 21 and the fixed lower clamping plate 22 are arranged on the bottom plate 1 through a fixed column 23, the fixed upper clamping plate 21 and the fixed lower clamping plate 22 are arranged on the fixed column 23 in a sliding manner, a limit plate 24 is arranged at the top of the fixed column 23, the fixed column 23 and the limit plate 24 can be replaced by bolts, the bolts are in threaded connection with the bottom plate 1 and are used for fixing the positions of the upper clamping plate 21 and the fixed lower clamping plate 22, the fixed upper clamping plate 21 and the fixed lower clamping plate 22 can also slide up and down on the bolts, first adjusting bolts 25 are arranged at two ends of the fixed upper clamping plate 21, the fixed upper clamping plate 21 can be in sliding connection or, the lower end of the first adjusting bolt 25 penetrates through the fixed lower clamping plate 22 and then is provided with a first adjusting nut 26, the fixed lower clamping plate 22 is arranged on the first adjusting bolt 25 in a sliding mode, the lower end of the first adjusting bolt 25 is abutted to the bottom plate 1, the distance between the fixed upper clamping plate 21 and the fixed lower clamping plate 22 can be adjusted by adjusting the first adjusting nut 26, and then the coiled material test piece 6 is clamped or loosened.
Further, the movable clamping device 3 comprises a movable upper clamping plate 31 and a movable lower clamping plate 32, the movable upper clamping plate 31 and the movable lower clamping plate 32 are of a plane structure, the structure can effectively and firmly clamp a test piece within 500N of stress, second adjusting bolts 33 are arranged at two ends of the movable upper clamping plate 31, the movable upper clamping plate 31 can be in sliding connection or threaded connection with the second adjusting bolts 33, the lower ends of the second adjusting bolts 33 penetrate through second adjusting nuts 34 arranged behind the movable lower clamping plate 32, the movable lower clamping plate 32 is arranged on the second adjusting bolts 33 in a sliding mode, the distance between the movable upper clamping plate 31 and the movable lower clamping plate 32 can be adjusted through adjusting the second adjusting nuts 33, and then the coiled material test piece 6 is clamped or loosened.
Further, the pulley block mechanism 4 includes a fixed pulley block fixedly disposed on the bottom plate 1, a movable pulley block disposed below the fixed pulley block, and a rope 43 wound between the fixed pulley block and the movable pulley block, the fixed pulley block includes one or more fixed pulleys 41 arranged in a vertical direction, the movable pulley block includes one or more movable pulleys 42 arranged in the vertical direction, a hook body 44 connected with the movable clamping device 3 is disposed at a lower end of the movable pulley block, and an upper end of the rope 43 is connected with the dynamometer 5.
Preferably, the fixed pulley group consists of two fixed pulleys 41, the movable pulley group consists of two movable pulleys 42, the peeling force value of the conventional waterproof roll in outdoor construction is 50N-300N, the peeling force value of the roll with poor quality is less than 50N, and the peeling force value of a small part of the roll is 300N-600N. And when the force value is less than 100N during manual pulling, the manual operation is easy. Therefore, different pulley block mechanisms 4 can be selected according to the peeling strength values corresponding to different types of waterproof rolls and different operators so as to correspond to different stress multiples.
Further, the device also comprises a pulley block box body 45, the pulley block mechanism 4 is arranged in the pulley block box body 45, the upper end and the lower end of the pulley block box body 45 are respectively provided with a connecting hole, a wire rope 43 penetrates out of the connecting hole at the upper end to be connected with the dynamometer 5, a hook body 44 penetrates out of the connecting hole at the lower end to be connected with the movable clamping device 3, a corresponding hook body can be arranged on a movable upper clamping plate 31 or a movable lower clamping plate 32 of the movable clamping device 3, the fixed pulley block is fixed at the upper part of the pulley block box body 45, a guide shaft 46 is arranged at the center of the movable pulley 42, the movable pulley 42 is rotatably connected with the guide shaft 46 through a bearing, a guide groove 47 is arranged on the side wall corresponding to the guide shaft 46 in the pulley block box body 45, the guide shaft 46 is arranged in the guide groove 47 in a sliding manner, and the guide groove 47 is, the test accuracy is improved, the width of the guide groove 47 is slightly larger than the diameter of the guide shaft 46, the guide shaft 46 is not in contact with the side wall of the guide groove 47, the friction resistance in the test process is reduced, and the test accuracy is improved.
Further, still including set up in leveling device 7 on the bottom plate 1, leveling device 7 is located between fixed clamping device 2 and the activity clamping device 3, and is close to the one end of activity clamping device 3, leveling device 7 can prevent that coiled material test piece 6 atress direction changes under the exogenic action, leveling device 7 is including making level upper part 71 and making level lower part 72, make level upper part 71 and make level and be provided with the confession between the lower part 72 the clearance that coiled material test piece 6 passes through, make level upper part 71 and make level down clearance center between the part 72 with clearance center between fixed upper plate 21 and the fixed lower plate 22 is in on the same water flat line, and this clearance slightly is greater than the thickness of coiled material test piece 6, should satisfy coiled material test piece 6 and not hinder and pass.
In order to make in the test process coiled material test piece 6 with make level the piece 71 and make level the friction reduction between piece 72 down, preferentially, make level the piece 71 and make level down the piece 72 and all adopt the round roller, the both ends of round roller are provided with bearing frame 73, bearing frame 73 through third adjusting bolt 74 set up in on the bottom plate 1, the round roller with bearing frame 73 rotates to be connected, and the setting of round roller can reduce coiled material test piece 6 and the influence that makes level a device 7 contact friction and cause the test result.
Furthermore, the dynamometer 5 is a hand-held memory type device, can record the maximum force value in the test process in the stretching process, can be cleared after the test is finished, and can specifically adopt an NK-500 tension meter.
The test flow comprises the following steps:
a. selecting a pulley block mechanism 4, and determining the multiple relation between a test value and an actual value;
b. one end of the coiled material test piece 6 is contacted with the fixed clamping device 2 but not clamped;
c. the other end of the coiled material test piece 6 penetrates through the leveling piece device 7 and is clamped by the movable clamping device 3;
d. the pulley block 5 is respectively connected with the movable clamping device 3 and the dynamometer 5 through connecting lines;
e. erecting the bottom plate 1;
f. vertically pulling the dynamometer 5 until the coiled material test piece 6 is not contacted with the fixed clamping device 2, and resetting the dynamometer until the force value is stable;
g. flatly placing the bottom plate 1 and clamping the unclamped end of the coiled material test piece 6 by using the fixed clamping device 2;
h. erecting the base plate 1 and vertically pulling the dynamometer 5 at a constant speed to test the stripping value of the coiled material test piece 6 until the stripping is finished;
i. the actual value of the peeling force value is calculated by using the value displayed by the dynamometer 5.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. A portable force measuring device is characterized by comprising a bottom plate (1), a fixed clamping device (2), a movable clamping device (3), a pulley block mechanism (4) and a dynamometer (5); the fixed clamping device (2) and the movable clamping device (3) are respectively used for fixing two ends of a coiled material test piece (6), the fixed clamping device (2) is arranged at one end of the bottom plate (1), the pulley block mechanism (4) is arranged at the other end of the bottom plate (1), one end of the pulley block mechanism (4) is connected with the movable clamping device (3), and the other end of the pulley block mechanism (4) is connected with the dynamometer (5).
2. The portable force measuring device according to claim 1, wherein the fixed clamping device (2) comprises a fixed upper clamping plate (21) and a fixed lower clamping plate (22), the fixed upper clamping plate (21) and the fixed lower clamping plate (22) are arranged on the bottom plate (1) through a fixed column (23), the fixed upper clamping plate (21) and the fixed lower clamping plate (22) are arranged on the fixed column (23) in a sliding manner, a limiting plate (24) is arranged at the top of the fixed column (23), first adjusting bolts (25) are arranged at two ends of the fixed upper clamping plate (21), and first adjusting nuts (26) are arranged after the lower ends of the first adjusting bolts (25) penetrate through the fixed lower clamping plate (22).
3. The portable force measuring device according to claim 1, wherein the movable clamping device (3) comprises a movable upper clamping plate (31) and a movable lower clamping plate (32), wherein a second adjusting bolt (33) is arranged at each end of the movable upper clamping plate (31), and a second adjusting nut (34) is arranged at the lower end of the second adjusting bolt (33) after penetrating through the movable lower clamping plate (32).
4. A portable force measuring device according to claim 1, wherein the pulley block mechanism (4) comprises a fixed pulley block fixedly arranged on the base plate (1) and a movable pulley block arranged below the fixed pulley block, and a wire rope (43) wound between the fixed pulley block and the movable pulley block, the fixed pulley block comprises one or more fixed pulleys (41) arranged in a vertical direction, the movable pulley block comprises one or more movable pulleys (42) arranged in a vertical direction, the lower end of the movable pulley block is provided with a hook body (44) connected with the movable clamping device (3), and the upper end of the wire rope (43) is connected with the dynamometer (5).
5. The portable force measuring device according to claim 4, wherein a pulley block box (45) is disposed on an outer cover of the pulley block mechanism (4), connecting holes are respectively formed in an upper end and a lower end of the pulley block box (45), the fixed pulley block is fixed to an upper portion of the pulley block box (45), a guide shaft (46) is disposed at a center of the movable pulley (42), the movable pulley (42) is rotatably connected with the guide shaft (46) through a bearing, a guide groove (47) is formed in a side wall of the pulley block box (45) corresponding to the guide shaft (46), and the guide shaft (46) is slidably disposed in the guide groove (47).
6. A portable force measuring device according to claim 5, wherein the width of said guide slot (47) is larger than the diameter of said guide shaft (46), said guide shaft (46) being free from contact with the side walls of said guide slot (47).
7. The portable force measuring device according to claim 1, further comprising a leveling device (7) disposed on the base plate (1), wherein the leveling device (7) is located between the fixed clamping device (2) and the movable clamping device (3) and is close to one end of the movable clamping device (3), the leveling device (7) comprises an upper leveling piece (71) and a lower leveling piece (72), and a gap for the coil test piece (6) to pass through is disposed between the upper leveling piece (71) and the lower leveling piece (72).
8. A portable force measuring device according to claim 7, wherein the centre of the gap between the upper leveling piece (71) and the lower leveling piece (72) is level with the centre of the gap between the upper fixed jaw (21) and the lower fixed jaw (22).
9. A portable force measuring device according to claim 7, wherein the upper leveling member (71) and the lower leveling member (72) are round rollers, both ends of the round rollers are arranged on the base plate (1) through bearing seats (73), and the round rollers are rotatably connected with the bearing seats (73).
10. A portable force measuring device according to claim 7, wherein the upper leveling piece (71) and the lower leveling piece (72) are arranged on the base plate (1) by means of a third adjusting bolt (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921520239.6U CN210664836U (en) | 2019-09-12 | 2019-09-12 | Portable force measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921520239.6U CN210664836U (en) | 2019-09-12 | 2019-09-12 | Portable force measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210664836U true CN210664836U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921520239.6U Active CN210664836U (en) | 2019-09-12 | 2019-09-12 | Portable force measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210664836U (en) |
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2019
- 2019-09-12 CN CN201921520239.6U patent/CN210664836U/en active Active
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