A flame retardant testing device for textiles

Abstract

The invention discloses a flame retardant detection device for textiles, which relates to the technical field of textile detection, and comprises: a testing mechanism, wherein the testing mechanism comprises a cabinet, wherein a testing cabin is arranged in the cabinet; the adjusting mechanism comprises a turntable; the connecting mechanism comprises a sliding block mounted on the turntable, wherein a mounting rod is mounted on the sliding block; the hanging mechanism comprises a hanging plate mounted on the mounting rod, wherein two supporting plates are symmetrically arranged on the side of the hanging plate; the clamping mechanism comprises a rotating block rotatably connected to the hanging plate, wherein a clamping plate is fixed to one end of the rotating block away from the hanging plate; the tearing mechanism comprises a clamping strip, wherein a locking disk is fixed to one end of the clamping strip close to the rotating block, wherein an extraction sleeve is slidably connected to one end of the clamping strip away from the rotating block, wherein an extraction block is slidably connected in the extraction sleeve; the application has the advantages of being able to accurately determine the hanging position of the heavy hammer, and to simply, quickly and accurately measure the tearing length.

Description

Technical Field

[0001] The invention relates to the technical field of textile detection, and more specifically to a textile flame retardancy detection device. Background Art

[0002] Textile flame retardant testing equipment is a device used to test and evaluate the flame retardant properties of textiles. It can help fabric manufacturers, quality control departments or third-party laboratories determine whether the combustion performance of textiles under fire conditions meets relevant safety standards and regulatory requirements. Textile flame retardant testing equipment plays an important role in the textile industry and can ensure the safety and reliability of textile products.

[0003] There are many methods for testing flame retardancy of textiles, the most common of which are vertical burning test, 45-degree inclined burning test, etc. In the vertical burning test, the inspector usually takes out the burned sample from the sample holder after the burning is over, and then selects the corresponding weight according to the mass per unit area of ​​the sample, and hangs the weight on the bottom edge of either side of the burning area. The inspector drags the other side for a tearing test. Measuring the tear length of the sample can determine the strength of the flame retardant performance of the textile. The tear length is generally within 10 cm to be qualified. The shorter the tear length, the better the flame retardant effect.

[0004] However, during the above tear test, the position of the hanging weight is determined only by the naked eye of the inspector, which has a large deviation. In addition, the length of the sample tear may be different depending on the position of the hanging weight. Similarly, the position of the other side dragged by the inspector is uncertain, which will also affect the test results. In addition, the force used by the inspectors when dragging is different, and a large force may cause the sample to tear accidentally. In summary, the error of manual tear measurement is too large, which can easily lead to inaccurate tear length measurement and affect the qualified rate of textiles. Therefore, it is necessary to propose a textile flame retardant testing equipment to solve the above problems. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a textile flame retardant detection device, which can solve the problem that when manually measuring the tear length of textiles after combustion detection in the prior art, the hanging position of the weight and the position of manual dragging are difficult to accurately select, resulting in large tear measurement errors. It has the advantages of being able to accurately determine the hanging position of the weight and simply, quickly and accurately measure the tear length.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A textile flame retardant testing device, comprising:

[0008] A testing mechanism, the testing mechanism comprising a cabinet, wherein a testing cabin is arranged in the cabinet;

[0009] An adjustment mechanism is installed in the test chamber, and the adjustment mechanism includes a turntable installed inside the test chamber;

[0010] A connecting mechanism is installed on the rotating disk, and the connecting mechanism includes a slider installed on the rotating disk, and a mounting rod is installed on the slider;

[0011] A hanging mechanism is installed on the mounting rod, and the hanging mechanism includes a hanging plate installed on the mounting rod, and two supporting plates are symmetrically arranged on the side of the hanging plate;

[0012] The hanging plate is provided with a clamping mechanism, the clamping mechanism comprising a rotating block rotatably connected to the hanging plate, and a clamping plate is fixed to one end of the rotating block away from the hanging plate;

[0013] A tearing mechanism is installed at the end of the rotating block away from the hanging plate, and the tearing mechanism includes a clamping strip installed at the end of the rotating block away from the hanging plate, a locking plate is fixed to the end of the clamping strip close to the rotating block, an extraction sleeve is slidably connected to the end of the clamping strip away from the rotating block, and an extraction block is slidably connected inside the extraction sleeve.

[0014] As a preferred solution of the present invention, the testing mechanism further comprises a cabinet door rotatably mounted on the cabinet surface, the cabinet door is engaged with the testing chamber, and a top block 14 is fixed to the top surface of the testing chamber 12 .

[0015] As a preferred solution of the present invention, a combustion mechanism is installed in the cabinet, and the combustion mechanism includes a motor installed inside the cabinet, a gear is provided at the output end of the motor, an ignition tube is slidably installed in the cabinet, the flame outlet of the ignition tube is located in the test chamber, and a propulsion tooth is provided on the bottom surface of the ignition tube, and the propulsion tooth is meshed with the gear.

[0016] As a preferred solution of the present invention, the adjustment mechanism also includes a transverse groove and a longitudinal groove arranged on the side wall of the test cabin, the inner end of the transverse groove is connected to the top of the longitudinal groove, and the turntable is slidably connected in the longitudinal groove, an electric push rod is installed at the top of the longitudinal groove, the turntable is rotatably connected to the bottom end of the electric push rod, a mounting groove is provided on the surface of the turntable, the slider is slidably connected in the mounting groove, two positioning strips are symmetrically provided on the upper and lower sides of the mounting groove, the cylindrical array of the turntable is provided with a plurality of teeth, the cylindrical surface of the turntable is symmetrically penetrated with two jacks, the side wall of the longitudinal groove is provided with a rack, the teeth are meshed with the rack, and two directional rods are symmetrically fixed at the bottom of the longitudinal groove.

[0017] As a preferred solution of the present invention, the connecting mechanism also includes a magnet installed on the surface of the slider, the magnet is magnetically connected to the turntable, two positioning grooves are symmetrically provided on the upper and lower sides of the slider, the two positioning grooves are respectively slidably connected to the two positioning bars, and one of the mounting rods is provided with a plurality of lock holes at equal distances.

[0018] As a preferred solution of the present invention, the hanging mechanism also includes through holes symmetrically passing through the hanging plate, the two mounting rods are slidably connected to the corresponding through holes respectively, an insertion rod is slidably connected inside one side of the hanging plate, and the insertion rod is snap-connected in the lock hole.

[0019] As a preferred solution of the present invention, the clamping mechanism also includes a supporting plate fixed to the end of the rotating block away from the hanging plate, the supporting plate and the locking plate are rotatably connected via a rotating shaft, a blocking plate is also fixed to the end of the rotating block away from the hanging plate, the blocking plate abuts against the inner side of the clamping strip close to the end of the rotating block, a semi-cylindrical locking groove is provided on the inner side of the supporting plate, an inner cavity is provided inside the rotating block, a limiting hole is provided on the surface of the rotating block, the limiting hole is connected to the inner cavity, and the clamping plate, the clamping strip and the support plate are connected by a plurality of bolts.

[0020] As a preferred solution of the present invention, the tearing mechanism also includes a long rod slidably connected to the inside of the clamping strip, and the end of the long rod close to the rotating block is engaged with the locking groove, the long rod is elastically connected to the clamping strip through a first spring, a wedge is fixed to the end of the long rod away from the rotating block, a cylinder is installed on the side of the end of the clamping strip away from the rotating block, the extraction sleeve is slidably connected to the cylinder, a second spring is installed in the cylinder, a check rod is fixed to the outside of the extraction sleeve, the check rod contacts the wedge, and the extraction block is elastically connected to the inside of the extraction sleeve through a third spring.

[0021] As a preferred solution of the present invention, a locking mechanism is installed inside the rotating block, and the locking mechanism includes a pressure rod slidably connected to the side of the rotating block, and a locking rod is slidably connected to the inside of the rotating block, and the pressure rod abuts against one end of the locking rod, and the locking rod is elastically connected to the inside of the rotating block through a fourth spring, and an arc-shaped locking plate is fixed to the other end of the locking rod, a sliding cylinder is fixed to the side of the pressure rod, and the sliding cylinder is slidably connected to the inner cavity, a fifth spring is installed inside the sliding cylinder, and a sliding rod is slidably connected inside the sliding cylinder, the sliding rod abuts against the fifth spring, and a limiting head is fixed at the end of the sliding rod.

[0022] As a preferred embodiment of the present invention, a counterweight mechanism is installed on the bottom surface of the test cabin, and the counterweight mechanism includes a counterweight plate rotatably connected to the bottom surface of the test cabin, and the top surface array of the counterweight plate is provided with a plurality of mounting seats, and a corresponding counterweight block is placed in each of the mounting seats, and a conical column is fixed on the top surface of each counterweight block, and a conical disk is slidably connected to the conical column, and a pointer is fixed to the bottom surface of the test cabin near the counterweight plate.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] When performing tearing detection, the adjustment mechanism can automatically drive the hanging mechanism, clamping mechanism and tearing mechanism of the installed test piece to fall, so as to obtain the counterweight block of corresponding mass. In addition, during the descent process, the turntable rotates 90 degrees, and drives the hanging mechanism, clamping mechanism and tearing mechanism to rotate 90 degrees synchronously through the connecting mechanism, so that the test piece changes from vertical suspension to horizontal suspension, which is convenient for the extraction sleeve to dock with the counterweight block, and at the same time, it is convenient for the counterweight block to use its own gravity to drive the clamping strip to rotate downward, thereby dragging the bottom corner of the test piece and completing the tearing process of the combustion zone. The position of the counterweight block connected to the tearing mechanism is fixed, ensuring that the position is the same each time the counterweight block is hung, avoiding the non-fixed hanging position of the counterweight block 93 in the existing flame retardant detection, which has a large error and effectively improves the accuracy of the test results.

[0025] After the extraction sleeve is connected to the counterweight block, due to the large mass of the counterweight block, when the tearing mechanism rises, the counterweight block will pull the check rod downward, and the pressure of the check rod on the wedge block will be reduced, thereby releasing the long rod, allowing the top end of the long rod to slide out of the lock groove, releasing the lock on the support plate, and the clamping strip can drive the support plate to rotate, and then cooperate with the counterweight block to drag the detection piece to complete the tearing detection.

[0026] When the adjusting mechanism is used to drive the clamping mechanism to rise to the top of the test chamber through the connecting mechanism, the top block pushes the pressure rod on the side of the rotating block toward the inside of the rotating block, thereby the locking plate is pressed against the locking disk through the locking rod, and the strip-shaped protrusions on the side of the locking plate and the locking plate are engaged with each other, so that the locking disk cannot rotate, and the clamping strip and the support plate fixed thereto remain stationary. In the subsequent process of removing the test piece, the clamping strip can be effectively prevented from rotating accidentally, which would cause the tear length of the test piece to change, thereby better protecting the state of the test piece after the tear test, ensuring the consistency of the test result, and improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the partial cutaway structure of the left side of the cabinet of the present invention;

[0029] Figure 3 It is a schematic diagram of the overall cutaway structure of the cabinet of the present invention;

[0030] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0031] Figure 5 It is a schematic diagram of the disassembled structure of the adjustment mechanism and the connection mechanism of the present invention;

[0032] Figure 6 It is a schematic diagram of the cutaway structure of the turntable of the present invention;

[0033] Figure 7 It is a schematic diagram of the coordination structure of the suspension mechanism and the clamping mechanism of the present invention;

[0034] Figure 8 It is a schematic diagram of the coordination structure of the connection mechanism and the suspension mechanism of the present invention;

[0035] Fig. 9 It is a schematic diagram of the overall cutaway structure of the tearing mechanism of the present invention;

[0036] Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle;

[0037] Fig.11 For the present invention Fig. 9 The enlarged structural diagram at C in the middle;

[0038] Fig.12 It is a schematic diagram of the matching structure of the support plate and the locking plate of the present invention;

[0039] Fig.13 It is a schematic diagram of the structure of the counterweight mechanism of the present invention.

[0040] Description of the numbers in the figure:

[0041] 1. Test mechanism; 11. Cabinet; 12. Test chamber; 13. Cabinet door; 14. Top block; 2. Combustion mechanism; 21. Motor; 22. Gear; 23. Ignition tube; 24. Propelling tooth; 3. Adjustment mechanism; 31. Horizontal groove; 32. Vertical groove; 33. Electric push rod; 34. Turntable; 35. Installation groove; 36. Positioning strip; 37. Tooth; 38. Socket; 39. Rack; 391. Orienting rod; 4. Connecting mechanism; 41. Slider; 42. Magnet; 43. Positioning groove; 44. Installation rod; 45. Lock hole; 5. Suspension mechanism; 51. Hanging plate; 52. Perforation; 53. Insertion rod; 54. Support plate; 6. Clamping mechanism; 61. Rotating block; 62. Clamping plate; 63. Support Plate; 64, baffle; 65, locking groove; 66, inner cavity; 67, limiting hole; 68, bolt; 7, tearing mechanism; 71, clamping strip; 72, long rod; 73, first spring; 74, wedge block; 75, cylinder; 76, check rod; 77, second spring; 78, extraction sleeve; 79, extraction block; 791, third spring; 792, locking plate; 8, locking mechanism; 81, pressure rod; 82, locking rod; 83, fourth spring; 84, slide cylinder; 85, fifth spring; 86, slide rod; 87, limiting head; 88, locking plate; 9, counterweight mechanism; 91, counterweight plate; 92, mounting seat; 93, counterweight block; 94, cone column; 95, cone plate; 96, pointer; 100, detection part. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1, please refer to Figure 1-Figure 13 As shown, the present invention discloses a textile flame retardancy testing device, comprising a testing mechanism 1, the testing mechanism 1 comprising a cabinet 11, and a testing cabin 12 is arranged in the cabinet 11;

[0044] An adjustment mechanism 3 is installed in the test chamber 12, and the adjustment mechanism 3 includes a turntable 34 installed inside the test chamber 12;

[0045] A connecting mechanism 4 is installed on the rotating disk 34, and the connecting mechanism 4 includes a slider 41 installed on the rotating disk 34, and a mounting rod 44 is installed on the slider 41;

[0046] A hanging mechanism 5 is installed on the mounting rod 44, and the hanging mechanism 5 includes a hanging plate 51 installed on the mounting rod 44, and two supporting plates 54 are symmetrically arranged at the bottom of the hanging plate 51;

[0047] A clamping mechanism 6 is installed on the hanging plate 51, and the clamping mechanism 6 includes a rotating block 61 rotatably connected to the hanging plate 51, and a clamping plate 62 is fixed to one end of the rotating block 61 away from the hanging plate 51;

[0048] A tearing mechanism 7 is installed at the end of the rotating block 61 away from the hanging plate 51, and the tearing mechanism 7 includes a clamping strip 71 installed at the end of the rotating block 61 away from the hanging plate (51), a locking plate 792 is fixed to the end of the clamping strip 71 close to the rotating block 61, and an extraction sleeve 78 is slidably connected to the end of the clamping strip 71 away from the rotating block 61, and an extraction block 79 is slidably connected inside the extraction sleeve 78.

[0049] As attached Figure 7 As shown, first, place the hanging mechanism 5 flat on the table, then place the cut detection piece 100 flat on the hanging mechanism 5, place the head of the detection piece 100 on the surface of the hanging plate 51, and place the two sides on the support plate 54, rotate the rotating block 61 to make the rotating block 61 contact the detection piece 100, and the rotating block 61 drives the clamping plate 62 and the clamping strip 71 to contact the detection piece 100, and the clamping mechanism 6 and the clamping strip 71 jointly press the detection piece 100, then install the hanging mechanism 5 on the mounting rod 44, and then place the above mechanism in the test chamber 12 for combustion detection.

[0050] After the combustion is finished, a burning area will be formed at the bottom of the detection member 100, and the fabric in the burning area is more likely to break than other areas. Then the turntable 34 drives the hanging mechanism 5 and the clamping mechanism 6 to slide downward through the connecting mechanism 4. During the sliding process, the turntable 34 drives the connecting mechanism 4 to rotate 90 degrees, and the connecting mechanism 4 drives the hanging mechanism 5 and the clamping mechanism 6 to rotate synchronously. Fig. 9 As shown, the test piece 100 is suspended horizontally, the clamping strip 71 is below the clamping plate 62, and the turntable 34 continues to descend. Finally, the extraction sleeve 78 on the side of the bottom end of the clamping strip 71 is docked with the corresponding counterweight block 93 on the bottom surface of the test chamber 12, so that the counterweight block 93 is installed in the extraction sleeve 78; then the turntable 34 drives the suspension mechanism 5 and the clamping mechanism 6 to move upward through the connecting mechanism 4. Since the counterweight block 93 is installed at the bottom end of the clamping strip 71, the weight increases. During the ascending process, the other support plate 54 and the clamping strip 71 are close to each other. One end of the rotating block 61 rotates around the rotating block 61 (one of the support plates 54 is fixed to the side of the hanging plate 51, and the other support plate 54 is rotatably connected to the side of the hanging plate 51, and the rotatable support plate 54 is fixedly connected to the clamping strip 71 by a bolt 68), and the rotation of the support plate 54 and the clamping strip 71 is used to pull the bottom end of the detection piece 100, tear the combustion area of ​​the detection piece 100, and finally measure the torn length of the detection piece 100 to obtain the flame retardant performance of the detection piece 100.

[0051] Example 2: This example is an explanation based on Example 1. For details, please refer to Figure 1-Figure 13The testing mechanism 1 further includes a cabinet door 13 rotatably mounted on the surface of the cabinet body 11 , the cabinet door 13 is engaged with the testing chamber 12 , and a top block 14 is fixed to the top surface of the testing chamber 12 .

[0052] A combustion mechanism 2 is installed in the cabinet 11, and the combustion mechanism 2 includes a motor 21 installed inside the cabinet 11. A gear 22 is provided at the output end of the motor 21. An ignition tube 23 is slidably installed in the cabinet 11. The flame outlet of the ignition tube 23 is located in the test chamber 12. A propulsion tooth 24 is provided on the bottom surface of the ignition tube 23, and the propulsion tooth 24 is meshed and connected with the gear 22.

[0053] The adjustment mechanism 3 also includes a transverse groove 31 and a longitudinal groove 32 arranged on the side wall of the test chamber 12. The inner end of the transverse groove 31 is connected to the top of the longitudinal groove 32, and the turntable 34 is slidably connected to the longitudinal groove 32. An electric push rod 33 is installed at the top of the longitudinal groove 32. The turntable 34 is rotatably connected to the bottom end of the electric push rod 33. A mounting groove 35 is provided on the surface of the turntable 34. The slider 41 is slidably connected to the mounting groove 35. Two positioning bars 36 are symmetrically provided on the upper and lower sides of the mounting groove 35. The cylindrical array of the turntable 34 is provided with a plurality of teeth 37. Two jacks 38 are symmetrically penetrated on the cylindrical surface of the turntable 34. A rack 39 is provided on the side wall of the longitudinal groove 32. The teeth 37 are meshed and connected with the rack 39. Two directional rods 391 are symmetrically fixed to the bottom of the longitudinal groove 32.

[0054] The connecting mechanism 4 also includes a magnet 42 installed on the surface of the slider 41, the magnet 42 is magnetically connected to the turntable 34, and two positioning grooves 43 are symmetrically provided on the upper and lower sides of the slider 41. The two positioning grooves 43 are respectively slidably connected to the two positioning bars 36, and a plurality of locking holes 45 are equidistantly provided on one of the mounting rods 44.

[0055] In the initial state, the opening of the installation slot 35 on the turntable 34 is aligned with the inner end of the transverse slot 31. When installing the detection member 100, the connection mechanism 4 is detached from the adjustment mechanism 3. After the detection member 100 is installed, the slider 41 equipped with the suspension mechanism 5 and the clamping mechanism 6 is first placed into the outer end of the transverse slot 31, and slides along the transverse slot 31 toward the inside of the test chamber 12 until the slider 41 is detached from the transverse slot 31 and enters the installation slot 35. The positioning slot 43 on the slider 41 is engaged with the positioning bar 36 in the installation slot 35, and the magnet 42 on the slider 41 is magnetically attracted to the installation slot 35.

[0056] Then the adjusting mechanism 3 drives the suspension mechanism 5 and the clamping mechanism 6 to slide downward through the connecting mechanism 4. In this process, the electric push rod 33 drives the turntable 34 to move downward along the longitudinal groove 32. At the same time, the teeth 37 set on the cylindrical surface of the turntable 34 cooperate with the rack 39 on the side of the longitudinal groove 32 to rotate the turntable 34 (the teeth 37 are set to a quarter of the circle of the turntable 34, and the engagement of the teeth 37 and the rack 39 causes the turntable 34 to rotate ninety degrees). The turntable 34 drives the suspension mechanism 5 and the clamping mechanism 6 to rotate ninety degrees through the connecting mechanism 4. At this time, the teeth 37 are separated from the rack 39, and the top of the directional rod 391 at the bottom of the longitudinal groove 32 is just connected with the socket 38 on the turntable 34. Then the electric push rod 33 continues to drive the turntable 34 to descend, and the directional rod 391 is inserted into the socket 38, so that the turntable 34 will not deflect.

[0057] Example 3: This example is an explanation based on Example 1. For details, please refer to Figure 1-Figure 13 The hanging mechanism 5 also includes through holes 52 symmetrically passing through the hanging plate 51 , and the two mounting rods 44 are slidably connected to the corresponding through holes 52 , and an insertion rod 53 is slidably connected inside one side of the hanging plate 51 , and the insertion rod 53 is snap-connected in the lock hole 45 .

[0058] The clamping mechanism 6 also includes a support plate 63 fixed to the end of the rotating block 61 away from the hanging plate 51, the support plate 63 is rotatably connected to the locking plate 792 through a rotating shaft, and a blocking plate 64 is also fixed to the end of the rotating block 61 away from the hanging plate 51, the blocking plate 64 abuts against the inner side of the clamping strip 71 close to the end of the rotating block 61, a semi-cylindrical locking groove 65 is provided on the inner side of the support plate 63, an inner cavity 66 is provided inside the rotating block 61, a limiting hole 67 is provided on the surface of the rotating block 61, the limiting hole 67 is communicated with the inner cavity 66, and the clamping plate 62, the clamping strip 71 and the support plate 54 are connected by a plurality of bolts 68.

[0059] The tearing mechanism 7 also includes a long rod 72 slidably connected to the inside of the clamping strip 71, and the end of the long rod 72 close to the rotating block 61 is engaged with the locking groove 65, the long rod 72 is elastically connected to the clamping strip 71 through a first spring 73, a wedge block 74 is fixed to the end of the long rod 72 away from the rotating block 61, a cylinder 75 is installed on the side of the end of the clamping strip 71 away from the rotating block 61, an extraction sleeve 78 is slidably connected to the cylinder 75, a second spring 77 is installed in the cylinder 75, a check rod 76 is fixed to the outside of the extraction sleeve 78, the check rod 76 abuts against the wedge block 74, and the extraction block 79 is elastically connected to the inside of the extraction sleeve 78 through a third spring 791.

[0060] A counterweight mechanism 9 is installed on the bottom surface of the test cabin 12, and the counterweight mechanism 9 includes a counterweight plate 91 rotatably connected to the bottom surface of the test cabin 12. The top surface array of the counterweight plate 91 is provided with a plurality of mounting seats 92, and a corresponding counterweight block 93 is placed in each mounting seat 92. A conical column 94 is fixed to the top surface of each counterweight block 93, and a conical plate 95 is slidably connected to the conical column 94. A pointer 96 is fixed to the bottom surface of the test cabin 12 near the counterweight plate 91.

[0061] After the detection member 100 is installed, first pull the insertion rod 53 toward the outside of the hanging plate 51 to disengage the insertion rod 53 from the through hole 52, and then insert the installation rod 44 on the slider 41 into the through hole 52 on the hanging plate 51. After the hanging mechanism 5 reaches a suitable position, push the insertion rod 53 toward the inside of the hanging plate 51 to insert the insertion rod 53 into the locking hole 45, thereby fixing the hanging mechanism 5.

[0062] In the initial state, the elastic force of the second spring 77 causes the check rod 76 to slide into the inside of the clamping strip 71. Under the squeezing of the check rod 76, the end of the long rod 72 close to the rotating block 61 is engaged and connected to the locking groove 65 on the inner side of the support plate 63. The long rod 72 prevents the support plate 63 from rotating. Therefore, the clamping strip 71 and the rotating block 61 are relatively stationary, and the clamping plate 62, the clamping strip 71 and the two support plates 54 are tightly connected by bolts 68. The clamping strip 71 will not rotate, and the support plate 54 connected to the clamping strip 71 by bolts 68 is also stationary relative to the hanging plate 51, thereby fixing the detection part 100 well for combustion detection; the detection personnel select a corresponding counterweight block 93 according to the mass per unit area of ​​the detection part 100. Various sizes of counterweight blocks 93 are placed in the mounting seat 92 on the top surface of the counterweight plate 91. Before performing combustion detection, the detection personnel rotate the counterweight plate 91 to rotate the counterweight block 93 adapted to the current detection piece 100 to the position indicated by the pointer 96. When the socket 38 on the turntable 34 slides downward along the rack 39 to the bottom of the longitudinal groove 32, the extraction sleeve 78 on the side wall of the bottom end of the clamping strip 71 is just sleeved on the cone column 94 adapted to the top of the counterweight block 93. When the cone column 94 just enters the extraction sleeve 78, the extraction block 79 inside the extraction sleeve 78 will be squeezed by the cone column 94 (the inclined surface of the top surface of the cone column 94 is adapted to the inclined surface of the extraction block 79) and slide into the extraction sleeve 78, compressing the third spring 791. As the cone column 94 goes deeper, when the extraction block 79 passes over the cone column 94 and moves to the bottom of the cone column 94, the third spring 791 pushes the extraction block 79 to pop out and engages at the bottom of the cone column 94. The counterweight block 93 is connected to the extraction sleeve 78; then the electric push rod 33 drives the turntable 34 to rise, and the turntable 34 drives the suspension mechanism 5 and the clamping mechanism 6 to rise through the connecting mechanism 4. At this time, due to the large mass of the counterweight block 93, the extraction sleeve 78 will be driven to descend. The extraction sleeve 78 compresses the second spring 77 while driving the check rod 76 to descend. The check rod 76 releases the wedge block 74. Under the push of the first spring 73, the long rod 72 slides toward the end away from the rotating block 61, and its end close to the rotating block 61 slides out of the locking groove 65, and the support plate 63 and the locking plate 792 can rotate relative to each other. Under the action of the gravity of the counterweight block 93, the clamping strip 71 drives the locking plate 792 to rotate around the support plate 63. At the same time, the clamping strip 71 drives the support plate 54 connected to it by bolts 68 to drag the bottom angle of the detection member 100 together, causing the combustion zone of the detection member 100 to tear. The above-mentioned tearing process is automatically completed through the cooperation of structural parts, which ensures that the counterweight block 93 is suspended at a fixed point, avoids the problem that the hanging position of the counterweight block 93 in the existing flame retardant test is not fixed and the error is large, and effectively improves the accuracy of the test result; and after the extraction sleeve 78 is connected to the counterweight block 93, the weight of the counterweight block 93 is used to pull out the check rod 76, thereby releasing the long rod 72, so that the top end of the long rod 72 slides out of the locking groove 65, and the lock on the support plate 63 is released. The clamping strip 71 can drive the support plate 54 to rotate, and then cooperate with the counterweight block 93 to drag the detection part 100 to complete the tearing test.

[0063] The turntable 34 stops rising when it reaches the top of the directional rod 391, and waits for the detection piece 100 to complete tearing. The suspension mechanism 5, the clamping mechanism 6 and the tearing mechanism 7 continue to rise. During the rising process, the socket 38 is separated from the directional rod 391, and the teeth 37 on the cylindrical surface of the turntable 34 are meshed with the rack 39 again. In the subsequent rising process, the rack 39 drives the turntable 34 to reverse through the teeth 37, and the turntable 34 drives the suspension mechanism 5 and the clamping mechanism 6 to return to the vertical downward posture through the connecting mechanism 4. Under the action of gravity, the clamping strip 71 and the support plate 54 fixed to it by bolts 68 move vertically downward (restoring the initial state). When taking out the test piece 100, the tester pulls the connecting mechanism 4, the slider 41 slides from the installation groove 35 into the transverse groove 31, and then slides out of the transverse groove 31, and the connecting mechanism 4, the hanging mechanism 5 and the clamping mechanism 6 are taken out of the test chamber 12. Then, the counterweight block 93 is pressed toward the inside of the extraction sleeve 78 to move the counterweight block 93 toward the inside of the extraction sleeve 78 until the extraction block 79 hits the inclined surface at the bottom of the cone disk 95 (the top of the cone column 94 and the cone disk 95 are truncated cone structures with the same shape and opposite directions), and then pulls outward. The moving counterweight block 93, during this process, the extraction block 79 drives the cone disk 95 to slide on the cone column 94, and when the top surface of the cone disk 95 hits the bottom surface of the top of the cone column 94, it is blocked, and the extraction block 79 slides into the extraction sleeve 78 under the pressure of the sliding of the counterweight block 93. Since the extraction block 79 hits the inclined surface of the cone column 94, the extraction block 79 slides relatively along the inclined surface of the cone disk 95, and finally detaches from the cone disk 95, and directly crosses the cone column 94, so that the extraction sleeve 78 is separated from the cone column 94, and the counterweight block 93 is removed from the extraction sleeve 78. Put the counterweight block 93 back into the corresponding mounting seat 92 on the counterweight disk 91. Turn the bolt 68 to separate the support plate 54 from the clamping plate 62 and the clamping strip 71, and take out the detection piece 100 to measure the tear length.

[0064] Example 4: This example is an explanation based on Example 1. For details, please refer to Figure 1-Figure 13 A locking mechanism 8 is installed inside the rotating block 61, and the locking mechanism 8 includes a pressure rod 81 slidably connected to the side of the rotating block 61, and a locking rod 82 is slidably connected inside the rotating block 61. The pressure rod 81 abuts against one end of the locking rod 82, and the locking rod 82 is elastically connected to the inside of the rotating block 61 through a fourth spring 83. An arc-shaped locking plate 88 is fixed to the other end of the locking rod 82, and a slide cylinder 84 is fixed to the side of the pressure rod 81, and the slide cylinder 84 is slidably connected to the inner cavity 66. A fifth spring 85 is installed inside the slide cylinder 84, and a slide rod 86 is slidably connected inside the slide cylinder 84. The slide rod 86 abuts against the fifth spring 85, and a limiting head 87 is fixed at the end of the slide rod 86.

[0065] After the tearing test is finished, the adjusting mechanism 3 drives the hanging mechanism 5, the clamping mechanism 6 and the tearing mechanism 7 to reset through the connecting mechanism 4, and the clamping strip 71 returns to the vertical state. When the rotating block 61 rises to the upper section of the test chamber 12, the pressure rod 81 on its side contacts the top block 14 on the top surface of the test chamber 12, and the top block 14 pushes the pressure rod 81 to slide inside the rotating block 61, and the pressure rod 81 squeezes the locking rod 82, so that the locking rod 82 slides to the left (as shown in the attached figure). Fig.11 The locking plate 792 is prevented from rotating because the locking plate 792 is in a state of being locked to the left by the locking bar 82. As shown in the orientation shown in the illustration, the locking rod 82 compresses the fourth spring 83 and drives the locking plate 88 at its end to move to the left, and the locking plate 88 finally contacts the side of the locking plate 792. The side of the locking plate 88 and the side of the locking plate 792 are both provided with strip-shaped protrusions that engage with each other. After the locking plate 88 contacts the locking plate 792, the strip-shaped protrusions on the surfaces of the two engage with each other, and the locking plate 792 cannot rotate, that is, the clamping strip 71 and the support plate 54 fixed thereto by bolts 68 are restricted to remain stationary. During the sliding process of the pressure rod 81, the slide cylinder 84 and the slide rod 86 will slide in the inner cavity 66 (when the slide rod 86 is in the inner cavity 66, the fifth spring 85 in the slide cylinder 84 is always in a state of being compressed by the slide rod 86), and finally the limit head 87 is aligned with the limit hole 67, and the fifth spring 85 immediately pushes the slide rod 86, so that the limit head 87 pops out of the inner cavity 66 and engages with the limit hole 67, so that the pressure rod 81 cannot move. After that, when the detection member 100 is taken out, the top block 14 no longer resists the pressure rod 81, the pressure rod 81 cannot be moved, so that the locking rod 82 is always squeezed by the pressure rod 81, and the locking plate 88 is kept against the locking plate 792, thereby preventing the clamping strip 71 from rotating. In this way, during the process of removing the detection piece 100, the hanging mechanism 5, the clamping mechanism 6 and the tearing mechanism 7 always remain stationary, preventing the clamping strip 71 from accidentally rotating and causing the tearing length of the detection piece 100 to change, thereby better protecting the state of the detection piece 100 after the tearing test, ensuring the consistency of the test result, and improving the test accuracy. When releasing the lock of the locking plate 88 on the locking disk 792, the inspector pulls the limit head 87 to disengage the limit head 87 from the limit hole 67. After the restriction is lost, the fourth spring 83 pushes the locking rod 82 to reset, so that the locking plate 88 no longer conflicts with the locking disk 792, thereby releasing the lock on the clamping strip 71. At the same time, the locking rod 82 is reset to reset the pressure rod 81, and the pressure rod 81 drives the slide cylinder 84 back to the initial position. Under the squeezing of the inner cavity 66, the slide cylinder 84 slides a distance into the inside of the slide cylinder 84, thereby putting the fifth spring 85 in a compressed state.

[0066] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A textile flame retardancy testing device, comprising a testing mechanism (1), characterized in that: The testing mechanism (1) comprises a cabinet (11), wherein a testing chamber (12) is provided in the cabinet (11); An adjustment mechanism (3) is installed in the test chamber (12), and the adjustment mechanism (3) comprises a rotating disk (34) installed inside the test chamber (12); A connecting mechanism (4) is installed on the rotating disk (34), wherein the connecting mechanism (4) comprises a sliding block (41) installed on the rotating disk (34), and a mounting rod (44) is installed on the sliding block (41); A hanging mechanism (5) is installed on the mounting rod (44), and the hanging mechanism (5) comprises a hanging plate (51) installed on the mounting rod (44), and two supporting plates (54) are symmetrically arranged on the side of the hanging plate (51); A clamping mechanism (6) is installed on the hanging plate (51), and the clamping mechanism (6) comprises a rotating block (61) rotatably connected to the hanging plate (51), and a clamping plate (62) is fixed to one end of the rotating block (61) away from the hanging plate (51); A tearing mechanism (7) is installed at one end of the rotating block (61) away from the hanging plate (51), the tearing mechanism (7) comprising a clamping strip (71) installed at one end of the rotating block (61) away from the hanging plate (51), a locking plate (792) is fixed to one end of the clamping strip (71) close to the rotating block (61), an extraction sleeve (78) is slidably connected to one end of the clamping strip (71) away from the rotating block (61), and an extraction block (79) is slidably connected inside the extraction sleeve (78); A combustion mechanism (2) is installed in the cabinet (11), the combustion mechanism (2) comprising a motor (21) installed inside the cabinet (11), a gear (22) being provided at the output end of the motor (21), an ignition tube (23) being slidably installed in the cabinet (11), a flame-spraying port of the ignition tube (23) being located in the test chamber (12), a propulsion tooth (24) being provided on the bottom surface of the ignition tube (23), the propulsion tooth (24) being meshingly connected with the gear (22); The adjustment mechanism (3) further comprises a transverse groove (31) and a longitudinal groove (32) provided on the side wall of the test chamber (12); the inner end of the transverse groove (31) is communicated with the top end of the longitudinal groove (32); the turntable (34) is slidably connected in the longitudinal groove (32); an electric push rod (33) is installed at the top end of the longitudinal groove (32); the turntable (34) is rotatably connected to the bottom end of the electric push rod (33); a mounting groove (35) is provided on the surface of the turntable (34); and the slider ( 41) is slidably connected in the installation groove (35), two positioning bars (36) are symmetrically provided on the upper and lower sides of the installation groove (35), a cylindrical array of the turntable (34) is provided with a plurality of teeth (37), two insertion holes (38) are symmetrically penetrated through the cylindrical surface of the turntable (34), a rack (39) is provided on the side wall of the longitudinal groove (32), the teeth (37) are meshingly connected with the rack (39), and two directional rods (391) are symmetrically fixed at the bottom of the longitudinal groove (32); The connecting mechanism (4) further comprises a magnet (42) mounted on the surface of the slider (41), the magnet (42) being magnetically connected to the turntable (34), two positioning grooves (43) being symmetrically arranged on the upper and lower sides of the slider (41), the two positioning grooves (43) being slidably connected to the two positioning bars (36) respectively, and a plurality of locking holes (45) being equidistantly arranged on one of the mounting rods (44); The hanging mechanism (5) further comprises through holes (52) symmetrically passing through the hanging plate (51), the two mounting rods (44) being slidably connected to the corresponding through holes (52) respectively, an insertion rod (53) being slidably connected inside one side of the hanging plate (51), and the insertion rod (53) being snap-fitted into the locking hole (45); The clamping mechanism (6) further comprises a support plate (63) fixed to an end of the rotating block (61) away from the hanging plate (51), the support plate (63) being rotatably connected to the locking plate (792) via a rotating shaft, a blocking plate (64) being fixed to an end of the rotating block (61) away from the hanging plate (51), the blocking plate (64) abutting against an inner side of an end of the clamping strip (71) close to the rotating block (61), a semi-cylindrical locking groove (65) being provided on the inner side of the support plate (63), an inner cavity (66) being provided inside the rotating block (61), a limiting hole (67) being provided on the surface of the rotating block (61), the limiting hole (67) being communicated with the inner cavity (66), and the clamping plate (62), the clamping strip (71) and the support plate (54) being connected via a plurality of bolts (68); The tearing mechanism (7) further comprises a long rod (72) slidably connected to the interior of the clamping strip (71), and one end of the long rod (72) close to the rotating block (61) is snap-connected to the locking groove (65), the long rod (72) is elastically connected to the clamping strip (71) via a first spring (73), a wedge block (74) is fixed to the end of the long rod (72) away from the rotating block (61), a cylinder (75) is installed on the side of the end of the clamping strip (71) away from the rotating block (61), the extraction sleeve (78) is slidably connected to the cylinder (75), a second spring (77) is installed in the cylinder (75), a check rod (76) is fixed to the outside of the extraction sleeve (78), the check rod (76) contacts the wedge block (74), and the extraction block (79) is elastically connected to the interior of the extraction sleeve (78) via a third spring (791).

2. The textile flame retardancy testing device according to claim 1, characterized in that: The testing mechanism (1) further comprises a cabinet door (13) rotatably mounted on the surface of the cabinet body (11), the cabinet door (13) being snap-fitted and connected to the testing chamber (12), and a top block (14) being fixed to the top surface of the testing chamber (12).

3. The textile flame retardancy testing device according to claim 1, characterized in that: A locking mechanism (8) is installed inside the rotating block (61), and the locking mechanism (8) includes a pressure rod (81) slidably connected to the side of the rotating block (61), and a locking rod (82) is slidably connected to the inside of the rotating block (61), and the pressure rod (81) abuts against one end of the locking rod (82), and the locking rod (82) is elastically connected to the inside of the rotating block (61) through a fourth spring (83), and an arc-shaped locking plate (88) is fixed to the other end of the locking rod (82), and a sliding cylinder (84) is fixed to the side of the pressure rod (81), and the sliding cylinder (84) is slidably connected to the inner cavity (66), and a fifth spring (85) is installed inside the sliding cylinder (84), and a sliding rod (86) is slidably connected to the sliding cylinder (84), and the sliding rod (86) abuts against the fifth spring (85), and a limiting head (87) is fixed to the end of the sliding rod (86).

4. The textile flame retardancy testing device according to claim 1, characterized in that: A counterweight mechanism (9) is installed on the bottom surface of the test chamber (12), and the counterweight mechanism (9) comprises a counterweight plate (91) rotatably connected to the bottom surface of the test chamber (12). The top surface of the counterweight plate (91) is provided with a plurality of mounting seats (92) in an array, and a corresponding counterweight block (93) is placed in each mounting seat (92). A cone column (94) is fixed to the top surface of each counterweight block (93), and a cone plate (95) is slidably connected to the cone column (94). A pointer (96) is fixed to the bottom surface of the test chamber (12) near the counterweight plate (91).

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