CN114088518A - Safety helmet strength testing device based on up-down extrusion - Google Patents
Safety helmet strength testing device based on up-down extrusion Download PDFInfo
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- CN114088518A CN114088518A CN202111227253.9A CN202111227253A CN114088518A CN 114088518 A CN114088518 A CN 114088518A CN 202111227253 A CN202111227253 A CN 202111227253A CN 114088518 A CN114088518 A CN 114088518A
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- 238000001125 extrusion Methods 0.000 title claims abstract description 82
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 6
- 206010020649 Hyperkeratosis Diseases 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009778 extrusion testing Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of safety helmet quality detection, in particular to a safety helmet strength testing device based on up-down extrusion. It includes an intensity detector, the intensity detector at least including: the supporting body comprises a supporting frame, the supporting frame is provided with a supporting base, the supporting base is provided with a bottom body, the bottom body comprises a connecting body, the connecting body is connected with an intermediate body, and the intermediate body is connected with a bearing body; detecting the body, detecting the body and including the pick-up plate, the pick-up plate is equipped with the fixed plate, and the fixed plate is fixed with servo motor, and servo motor gear engagement has adjusting gear, and adjusting gear has seted up the lift mouth, and the lift mouth is connected with the extrusion body, and the extrusion body is including the extrusion cover, and the extrusion groove has been seted up to the extrusion cover, and the extrusion groove is equipped with the stripper bar. The invention provides an up-down extrusion type safety helmet strength testing device which is good in testing effect on the compressive strength of a safety helmet.
Description
Technical Field
The invention relates to the technical field of safety helmet quality detection, in particular to a safety helmet strength testing device based on up-down extrusion.
Background
Building site work progress hazardous source is many, need protect as the head through wearing the safety helmet, and the safety helmet is the cap that plays the guard action to the injury that human head caused by the drop and other specific factor, and the safety helmet comprises cap shell, cap liner, chin strap and annex etc. and need pass through intensity test before leaving the factory, and current testing arrangement is too crude nevertheless to the intensity test effect of safety helmet relatively poor, consequently needs a testing arrangement for the safety helmet detects.
Disclosure of Invention
The invention aims to provide a safety helmet strength testing device based on up-down extrusion to solve the problems in the background technology.
In order to achieve the above object, an object of the present invention is to provide a device for testing strength of a crash helmet based on a vertical squeeze type, including a strength detector, the strength detector at least including:
the supporting body comprises a supporting frame, a supporting base is arranged at the bottom of the supporting frame, a bottom body is arranged at the top of the supporting base, the bottom body comprises a connecting body, the bottom of the connecting body is connected with the supporting base, an intermediate body is connected to the top of the connecting body, and a bearing body is connected to the top of the intermediate body;
the device comprises a detection body, wherein the detection body comprises a bottom and a detection plate connected with the top of the support frame, a fixed plate is arranged on one side of the upper surface of the detection plate, a servo motor is fixed in the fixed plate through bolts, the servo motor is meshed with an adjusting gear through a gear, a lifting port penetrating through the surface of the adjusting gear is formed in the adjusting gear, an extrusion body is connected in the lifting port, the extrusion body comprises an extrusion sleeve in threaded connection with the lifting port, an extrusion groove penetrating through the surface of the extrusion sleeve is formed in the extrusion sleeve, and an extrusion rod is arranged in the extrusion groove.
As a further improvement of the technical scheme, a plurality of foot pads are arranged at the bottom of the support frame.
As a further improvement of the technical scheme, a supporting groove is formed in the top of the supporting base, an inserting body is correspondingly arranged at the bottom of the connecting body, and the inserting body is in inserting fit with the supporting groove.
As a further improvement of the technical scheme, the supporting frame is provided with an observation port, an observation window is arranged in the observation port, the surface of the observation window is provided with a square protrusion, and the observation window is in clamping fit with the observation port.
As a further improvement of the technical scheme, a cylinder is arranged at the top of the connector, a rotary opening is formed in the cylinder of the connector, the intermediate is rotatably connected with the rotary opening, a top body is arranged at the top of the intermediate, an angle opening is correspondingly formed in the bottom of the supporting body, and the top body is rotatably connected with the angle opening.
As a further improvement of the technical scheme, the supporting groove is provided with a plurality of first openings, the plug-in connector is correspondingly provided with a first locking groove penetrating through the surface of the plug-in connector, a first bolt is arranged in the first locking groove and penetrates through the first openings, a plurality of second openings are correspondingly formed in the rotating openings, a second bolt is arranged in the second openings and penetrates through the intermediate body.
As a further improvement of the present technical solution, the supporting body is a sphere structure.
As a further improvement of the technical scheme, the extrusion sleeve is provided with a locking opening close to the surface of the top end, the extrusion rod is correspondingly provided with a second locking groove penetrating through the surface of the extrusion sleeve, a third bolt is arranged in the second locking groove, and the third bolt penetrates through the locking opening.
As a further improvement of the technical scheme, a sliding groove is formed in the extrusion groove, and the extrusion rod is connected with the sliding groove in a sliding mode.
As a further improvement of the technical scheme, a counterweight groove is formed in the top of the extrusion rod, and a counterweight block is arranged in the counterweight groove.
Compared with the prior art, the invention has the beneficial effects that:
1. in this safety helmet intensity test device based on extrusion formula from top to bottom, produced impact force when carrying out extrusion intensity test to the safety helmet can be cushioned through being equipped with callus on the sole and rubber layer and cleared up, ensures the stability of device, and the bottom body that will install the examination safety helmet that awaits measuring is convenient for carry out the aggregate erection with the supporter through being equipped with grafting complex support groove, plug-in body, is favorable to the intensity test to the safety helmet.
2. In this safety helmet intensity test device based on extrusion formula from top to bottom, thereby be convenient for adjust the angle that the supporting body is the safety helmet through being equipped with intermediate, rotation mouth and the top body, the angle mouth that rotate to connect and be convenient for to the test of safety helmet, can fix the rotation angle of connector, intermediate through being equipped with a bolt and No. two bolts in addition and guarantee the stability when testing.
3. In this safety helmet intensity test device based on extrusion formula from top to bottom, be convenient for inject the removal orbit of extrusion pole through extrusion pole, the sliding tray that is equipped with sliding connection to thereby can simulate the quality of actual heavy object through being equipped with the balancing weight and to the collision test of safety helmet.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an intensity detector according to the present invention;
FIG. 3 is a schematic cross-sectional view of the support body of the present invention;
FIG. 4 is a schematic cross-sectional view of a test body according to the present invention;
FIG. 5 is a schematic cross-sectional view of the bottom body of the present invention;
FIG. 6 is a schematic cross-sectional view of the extruded body of the present invention.
The various reference numbers in the figures mean:
100. an intensity detector;
110. a support body;
111. a support frame; 112. a support base; 113. a support groove; 114. a first opening; 115. a foot pad; 116. an observation port; 117. an observation window;
120. detecting a body;
121. detecting a plate; 122. a fixing plate; 123. a servo motor; 124. an adjusting gear; 125. a lifting port; 126. a lifting groove;
130. a bottom body;
131. a linker; 132. an intermediate; 133. a carrier; 134. an insertion body; 1341. a first locking groove; 1342. a first bolt; 135. a rotation port; 136. a second port; 1361. a second bolt; 137. a top body; 138. an angle port;
140. an extrusion body;
141. extruding a sleeve; 142. extruding a groove; 143. an extrusion stem; 144. a sliding groove; 145. a locking port; 146. a second locking groove; 147. a third bolt; 148. a counterweight groove; 149. and a balancing weight.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Example 1
Referring to fig. 1 to 4, an object of the present embodiment is to provide an apparatus for testing strength of a crash helmet based on a vertical squeeze, including a strength detector 100, where the strength detector 100 at least includes:
the supporting body 110, the supporting body 110 includes a supporting frame 111, the supporting frame 111 is a hollow cubic structure, the bottom of the supporting frame 111 is provided with a supporting base 112, the supporting base 112 is a cylinder, the top of the supporting base 112 is provided with a bottom body 130, the bottom body 130 includes a connecting body 131 whose bottom is connected with the supporting base 112, the top of the connecting body 131 is connected with an intermediate body 132, and the top of the intermediate body 132 is connected with a bearing body 133;
detecting body 120, detecting body 120 includes the bottom and the pick-up plate 121 that support frame 111 top is connected, pick-up plate 121 upper surface one side is equipped with fixed plate 122, threaded cylindrical structure recess in the fixed plate 122 has been seted up, there is servo motor 123 through the bolt fastening in the fixed plate 122, servo motor 123 has adjusting gear 124 through gear engagement, adjusting gear 124 sets up the lift mouth 125 that runs through its surface, lift mouth 125 is the circular opening of wearing of interior screw thread, it has extrusion body 140 to connect in the lift mouth 125, extrusion body 140 includes the extrusion cover 141 with lift mouth 125 threaded connection, extrusion cover 141 is the cylinder, extrusion cover 141 sets up the extrusion groove 142 that runs through its surface, extrusion groove 142 is the circular opening of wearing, be equipped with extrusion pole 143 in the extrusion groove 142, extrusion pole 143 bottom is equipped with the cylinder.
The safety helmet strength testing device based on the up-down extrusion type in the embodiment places the safety helmet on the surface of the bearing body 133 and fixes the safety helmet, then inserts the plug-in body 134 of the bottom body 130 fixed with the safety helmet into the supporting groove 113 to complete the combined installation of the bottom body 130 and the supporting body 110, the servo motor 123 drives the adjusting gear 124 to rotate through gear engagement and drives the extrusion sleeve 141 in threaded connection with the lifting port 125 through the adjusting gear 124 to lift along the lifting groove 126, and the extrusion sleeve 141 descends towards the bottom to enable the bottom of the extrusion rod 143 to be in contact with the surface of the safety helmet fixed at the top of the bearing body 133 and extrude the safety helmet to perform up-down extrusion strength testing on the safety helmet.
Further for guaranteeing the stability of device, support frame 111 bottom is equipped with a plurality of callus on the sole 115, and callus on the sole 115 bottom is equipped with the rubber layer, can cushion through being equipped with callus on the sole 115 and rubber layer and clear up, guarantees the stability of device at the impact force that produces when carrying out the extrusion strength test to the safety helmet.
Further in order to facilitate the strength test of the safety helmet, the top of the supporting base 112 is provided with a supporting groove 113, the supporting groove 113 is a groove with a cylindrical structure, the bottom of the connecting body 131 is correspondingly provided with an inserting body 134, the inserting body 134 is a protrusion with a cylindrical structure, the inserting body 134 is in inserting fit with the supporting groove 113, the bottom body 130 provided with the safety helmet to be tested is conveniently assembled and installed with the supporting body 110 through the supporting groove 113 and the inserting body 134 which are provided with inserting fit, and the strength test of the safety helmet is facilitated.
Example 2
Avoid the piece impact that leads to because of the safety helmet accident breaks in the time of realizing the strength test to the safety helmet, improve on embodiment 1's basis, observation mouth 116 has been seted up to support frame 111, observation mouth 116 is "concave" type groove structure, be equipped with observation window 117 in the observation mouth 116, observation window 117 is the glass board, it is protruding that observation window 117 surface is equipped with the square body, observation window 117 and the cooperation of observation mouth 116 joint, can be convenient for collect the piece of safety helmet when avoiding receiving the safety helmet piece impact through being equipped with observation window 117.
Example 3
Referring to fig. 5, the strength test of the helmet at any angle is facilitated while the vertical compression strength test of the helmet is ensured, and this embodiment is an improvement on embodiment 1, wherein the top of the connecting body 131 is provided with a cylinder, the cylinder of the connecting body 131 is provided with a rotating port 135, the rotating port 135 is a groove with a 'middle' shaped cylinder structure, the two ends of the intermediate body 132 are provided with cylinder protrusions, the intermediate body 132 is rotatably connected with the rotating port 135, the top of the intermediate body 132 is provided with a top body 137, the top body 137 is a 'middle' shaped cylinder structure, the bottom of the bearing body 133 is correspondingly provided with an angle port 138, the angle port 138 is a circular penetrating port, the top body 137 is rotatably connected with the angle port 138, the angle of the supporting body 133, namely the safety helmet, can be adjusted conveniently through the middle body 132, the rotating port 135, the top body 137 and the angle port 138 which are rotatably connected, so that the test on the safety helmet is facilitated.
In the embodiment, in a specific use, the plug body 134 is used as a shaft to rotate in the supporting groove 113, the intermediate body 132 is rotated in the rotating opening 135, then the carrier 133 is rotated by using the top body 137 as a shaft, so that the angle of the helmet fixed on the surface of the carrier 133 is suitable for performing an up-and-down extrusion test, the first bolt 1342 passes through the first opening 114 and the first locking groove 1341 to complete the fixation of the connecting body 131, and the second bolt 1361 passes through the second opening 136 and the intermediate body 132 to complete the fixation of the intermediate body 132.
Further for the angle is fixed, support groove 113 and seted up a plurality of a mouth 114, a mouth 114 is circular wearing, insert the corresponding locking groove 1341 that runs through its surface of seting up of body 134, a locking groove 1341 is circular wearing, be equipped with a bolt 1342 in the locking groove 1341, a bolt 1342 passes a mouth 114, a plurality of No. two mouths 136 have correspondingly been seted up to rotation mouth 135, No. two mouths 136 are circular wearing, the circular wearing has correspondingly been seted up to midbody 132, be equipped with No. two bolts 1361 in No. two mouths 136, No. two bolts pass midbody 132, can be with the connector 131 through being equipped with a bolt 1342 and No. two bolts 1361, the rotation angle of midbody 132 is fixed and is ensured the stability when testing.
Further, in order to fix the helmet, the supporting body 133 is a spherical structure, and the head of the dummy can be conveniently fixed by the supporting body 133 provided with the spherical structure.
Example 4
Referring to fig. 6, a weight impact test of the crash helmet is performed while ensuring the up-down compression strength test of the crash helmet, which is an improvement of embodiment 1, wherein a locking opening 145 is formed on the top end surface of the compression sleeve 141, the locking opening 145 is a circular through opening, a second locking groove 146 penetrating through the surface of the compression rod 143 is correspondingly formed on the compression rod 143, a third bolt 147 is disposed in the second locking groove 146, the third bolt 147 penetrates through the locking opening 145, and the compression rod 143 and the compression sleeve 141 can be fixed by disposing the third bolt 147.
In the embodiment, when the safety helmet is used specifically, the servo motor 123 drives the extrusion sleeve 141 to ascend along the lifting groove 126 to the topmost end through the adjusting gear 124, the appropriate number of counter weights 149 are added into the counter weight groove 148 to increase the weight of the extrusion rod 143 after the extrusion sleeve 141 is kept fixed, and the third bolt 147 is taken out to enable the extrusion rod 143 to slide downwards along the sliding groove 144 under the action of gravity until the bottom of the extrusion rod 143 impacts the safety helmet.
Further, in order to limit the moving track, a sliding groove 144 is formed in the extrusion groove 142, the sliding groove 144 is a groove with a semi-cylindrical structure, a semi-cylindrical protrusion is correspondingly formed on the surface of the extrusion rod 143, the extrusion rod 143 is slidably connected with the sliding groove 144, and the moving track of the extrusion rod 143 is conveniently limited by the extrusion rod 143 and the sliding groove 144 which are slidably connected.
Further, in order to perform simulation, a counterweight groove 148 is formed in the top of the extrusion rod 143, the counterweight groove 148 is a groove with a cylindrical structure, a counterweight block 149 is arranged in the counterweight groove 148, and the counterweight block 149 is arranged to simulate the mass of an actual heavy object so as to perform collision test on the safety helmet.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Safety helmet strength test device based on extrusion formula from top to bottom, its characterized in that: comprising an intensity detector (100), the intensity detector (100) comprising at least:
the supporting body (110), the supporting body (110) includes a supporting frame (111), a supporting base (112) is arranged at the bottom of the supporting frame (111), a bottom body (130) is arranged at the top of the supporting base (112), the bottom body (130) includes a connecting body (131) with the bottom connected with the supporting base (112), an intermediate body (132) is connected to the top of the connecting body (131), and a bearing body (133) is connected to the top of the intermediate body (132);
detecting body (120), detecting body (120) including the bottom with detection plate (121) that support frame (111) top is connected, detection plate (121) upper surface one side is equipped with fixed plate (122), be fixed with servo motor (123) through the bolt in fixed plate (122), servo motor (123) have adjusting gear (124) through gear engagement, adjusting gear (124) are seted up and are run through its surperficial lift mouth (125), it has extrusion body (140) to connect in lift mouth (125), extrusion body (140) including with lift mouthful (125) threaded connection's extrusion cover (141), extrusion cover (141) are seted up and are run through its surperficial extrusion groove (142), be equipped with in extrusion groove (142) and extrude pole (143).
2. The upper and lower extrusion type safety helmet strength testing device based on claim 1 is characterized in that: the bottom of the support frame (111) is provided with a plurality of foot pads (115).
3. The upper and lower extrusion type safety helmet strength testing device based on claim 1 is characterized in that: the top of the supporting base (112) is provided with a supporting groove (113), the bottom of the connecting body (131) is correspondingly provided with an inserting body (134), and the inserting body (134) is in inserting fit with the supporting groove (113).
4. The upper and lower extrusion type safety helmet strength testing device based on claim 1 is characterized in that: observation mouth (116) have been seted up in support frame (111), be equipped with observation window (117) in observation mouth (116), observation window (117) surface is equipped with the square body arch, observation window (117) with observation mouth (116) joint cooperation.
5. The upper and lower extrusion type safety helmet strength testing device based on claim 3 is characterized in that: the connecting body (131) top is equipped with the cylinder, connecting body (131) cylinder is seted up and is had rotatory mouth (135), midbody (132) with rotatory mouth (135) rotate to be connected, midbody (132) top is equipped with top body (137), supporting body (133) bottom is corresponding to be equipped with angle mouth (138), top body (137) with angle mouth (138) rotate to be connected.
6. The upper and lower extrusion type safety helmet strength testing device based on claim 5 is characterized in that: support groove (113) and seted up a plurality of No. one mouth (114), the corresponding locking groove (1341) that runs through its surface of seting up of plug-in body (134), be equipped with a bolt (1342) in locking groove (1341), a bolt (1342) passes No. one mouth (114), a plurality of No. two mouths (136) have correspondingly been seted up in rotation mouth (135), be equipped with No. two bolts (1361) in No. two mouths (136), No. two bolts (1361) pass midbody (132).
7. The upper and lower extrusion type safety helmet strength testing device based on claim 5 is characterized in that: the bearing body (133) is of a spherical structure.
8. The upper and lower extrusion type safety helmet strength testing device based on claim 1 is characterized in that: the extrusion cover (141) is close to the top surface and has been seted up locking opening (145), No. two locking grooves (146) that run through its surface are seted up correspondingly to extrusion pole (143), be equipped with No. three bolt (147) in No. two locking grooves (146), No. three bolt (147) pass locking opening (145).
9. The upper and lower extrusion type safety helmet strength testing device based on claim 8 is characterized in that: a sliding groove (144) is formed in the extrusion groove (142), and the extrusion rod (143) is connected with the sliding groove (144) in a sliding mode.
10. The upper and lower extrusion type safety helmet strength testing device based on claim 8 is characterized in that: the top of the extrusion rod (143) is provided with a counterweight groove (148), and a counterweight block (149) is arranged in the counterweight groove (148).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227253.9A CN114088518A (en) | 2021-10-21 | 2021-10-21 | Safety helmet strength testing device based on up-down extrusion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227253.9A CN114088518A (en) | 2021-10-21 | 2021-10-21 | Safety helmet strength testing device based on up-down extrusion |
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| CN114088518A true CN114088518A (en) | 2022-02-25 |
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| CN202111227253.9A Pending CN114088518A (en) | 2021-10-21 | 2021-10-21 | Safety helmet strength testing device based on up-down extrusion |
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Application publication date: 20220225 |