CN220170968U

CN220170968U - Glowing filament tester

Info

Publication number: CN220170968U
Application number: CN202321554916.2U
Authority: CN
Inventors: 王富海; 王镭; 张双喜
Original assignee: Jiangning Nanjing Analytical Instrument Co ltd
Current assignee: Jiangning Nanjing Analytical Instrument Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-12-12
Anticipated expiration: 2033-06-16

Abstract

The utility model relates to the field of glow wire testers, in particular to a glow wire tester which comprises a base, wherein a glow wire is arranged on the base, one end of the base far away from the glow wire is connected with a clamp in a sliding manner, a traction mechanism capable of dragging the clamp to move towards the glow wire is arranged on the clamp and the base, the clamp comprises a clamp seat, a clamping box is arranged in the clamp seat, a back plate is connected in a sliding manner, an adjusting screw is arranged on the clamping box in a penetrating manner and in threaded connection with the clamping box, the adjusting screw is connected to the back plate in a rotating manner, a sample placing cavity is arranged on the clamping box, a test port is arranged on the clamp seat, the test port is communicated with the sample placing cavity, and when a worker clamps a sample, the worker only needs to place the sample in the sample placing cavity and then rotates the adjusting screw to enable the back plate to be abutted to the sample to be abutted to the inner wall of the clamping box, and the fixing of the sample can be completed, so that the operation of the worker is facilitated.

Description

Glowing filament tester

Technical Field

The utility model relates to the field of glow wire testers, in particular to a glow wire tester.

Background

The glow wire tester is used for testing glow wire ignition temperature, flammability, heat resistance index and other data of related materials.

The present Chinese patent publication No. CN217060107U discloses a glowing filament tester, which comprises a working platform, wherein a sample clamp, a fixed pulley and a glowing filament fixing frame are arranged on the working platform, the sample clamp comprises a bottom plate, two side plates, a bidirectional screw rod, a handle and two clamping plates, the two side plates are distributed on the bottom plate along the front and back directions, a shaft hole is formed in each side plate, one end of the bidirectional screw rod penetrates through one shaft hole and then is connected with the handle, the other end of the bidirectional screw rod extends into the other shaft hole, the two clamping plates are positioned between the two side plates, a second screw hole is formed in the front side surface of each clamping plate, the second screw hole is in threaded fit with the bidirectional screw rod, and when the bidirectional screw rod is rotated through the handle, the two clamping plates are mutually close to or mutually far away from each other.

According to the prior art, when clamping a sample, a worker needs to put the sample between two clamping plates and hold the sample by hand, and simultaneously rotates the bidirectional screw rod, so that the two clamping plates clamp the sample, and the operation of the worker is inconvenient.

Disclosure of Invention

In order to facilitate the clamping arrangement of the clamp operated by a worker, the utility model provides a glow wire tester.

The glowing filament tester provided by the utility model adopts the following technical scheme:

the utility model provides a glow wire tester, includes the base, is equipped with the glow wire on the base, and base one end sliding connection is kept away from the glow wire has anchor clamps, is equipped with the traction mechanism that can pull anchor clamps towards the glow wire removal on anchor clamps and the base, and anchor clamps include the anchor clamps seat, are equipped with the centre gripping box in the anchor clamps seat, and sliding connection has the backplate in the centre gripping box, wears to establish and threaded connection has adjusting screw on the centre gripping box, and adjusting screw rotates to connect in the backplate, is equipped with the lofting chamber on the centre gripping box, is equipped with the test port on the anchor clamps seat, and the test port communicates in the lofting chamber.

Through adopting above-mentioned technical scheme, when the centre gripping sample, the staff only need place the sample in the lofting intracavity, then rotate adjusting screw for backplate butt in the sample, and make the sample keep away from backplate one side butt in the centre gripping box inner wall, can accomplish the fixed of sample, the staff of being convenient for operates.

Optionally, the clamping box can be dismantled and connect in the anchor clamps seat, and the clamping box both sides are equipped with the draw-in lever, and the anchor clamps seat corresponds the draw-in lever and is equipped with the draw-in groove, and the draw-in lever can the joint in the draw-in groove.

Through adopting above-mentioned technical scheme, the centre gripping box can dismantle and connect in the anchor clamps seat, and the staff can install the sample in the centre gripping box after the centre gripping box in the outside, again with the centre gripping box installation in the anchor clamps seat to accomplish the centre gripping of sample, the staff of being convenient for operates.

Optionally, a side surface of the backboard, which is far away from the adjusting screw, is provided with an elastic supporting block, and a plurality of elastic gaskets are arranged in the clamping box.

Through adopting above-mentioned technical scheme, utilize elasticity to support piece and elasticity gasket butt in sample surface, can reduce the pressure of anchor clamps to the sample too big, lead to the possibility of sample damage.

Optionally, the clamp seat is provided with a measuring tape on one side of the clamp seat where the test card is arranged.

Through adopting above-mentioned technical scheme, the staff can observe sample flame height through the measuring tape, and the staff operation of being convenient for.

Optionally, be equipped with traction mechanism on base and the anchor clamps seat, traction mechanism includes the haulage rope, and anchor clamps seat both ends all are equipped with the rope groove, and haulage rope ability joint in the rope groove all is equipped with the balancing weight at haulage rope both ends, corresponds the balancing weight on the base and is equipped with the through-hole, and the balancing weight can pass the through-hole, and the base corresponds two through-holes and all is equipped with a traction sheave.

Through adopting above-mentioned technical scheme, will pull rope joint in the rope groove to make the balancing weight pass through the through-hole, can make anchor clamps seat remove towards the glow wire under the effect of haulage rope and balancing weight, the staff of being convenient for operates.

Optionally, the base is provided with a driving mechanism, the driving mechanism comprises a driving block, the driving block is slidably connected to the base, the base and the driving block are provided with power mechanisms, the driving block is provided with a push-pull electromagnet, an output shaft of the push-pull electromagnet is provided with a connecting rod, and one end of the connecting rod, far away from the driving block, is connected to the clamp seat.

Through adopting above-mentioned technical scheme, actuating mechanism drive anchor clamps seat is close to the back power unit stop work of glowing to push-pull type electro-magnet also stops work, makes anchor clamps seat continue to remove towards the glowing filament under traction mechanism's effect, shortens the journey of balancing weight displacement, reduces balancing weight and takes place wobbling possibility, makes traction mechanism's traction force more stable.

Optionally, the power unit includes driving motor, is equipped with drive screw on driving motor's the output shaft, and drive screw rotates to be connected in the base, is equipped with the displacement piece on the drive piece, and drive screw wears to establish and threaded connection in the displacement piece.

Through adopting above-mentioned technical scheme, utilize driving motor, drive screw and displacement piece to order about the drive piece and remove, simple structure.

Optionally, a slide is arranged on the base, a proximity switch is connected in the slide in a sliding manner, the proximity switch can control the driving motor and the push-pull electromagnet, a positioning nut is connected to the proximity switch in a threaded manner, and the positioning nut can be abutted to the periphery of the slide.

Through adopting above-mentioned technical scheme, utilize proximity switch can control driving motor and push-and-pull electromagnet, the staff of being convenient for operates, and proximity switch's position can be adjusted for public ancestor can adjust proximity switch's position according to different samples.

In summary, the present utility model includes at least one of the following beneficial effects:

1. when the sample is clamped, a worker only needs to place the sample in the lofting cavity, then rotates the adjusting screw, so that the back plate is abutted against the sample, the sample is abutted against the inner wall of the clamping box away from one side surface of the back plate, the sample can be fixed, and the worker can operate conveniently.

2. The driving mechanism drives the clamp seat to stop working after approaching to glowing, and the push-pull electromagnet also stops working, so that the clamp seat continues to move towards the glowing filament under the action of the traction mechanism, the distance of displacement of the balancing weight is shortened, the possibility of swinging of the balancing weight is reduced, and the traction force of the traction mechanism is more stable.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a clamping cassette of the present utility model;

fig. 3 is a schematic bottom view of the present utility model.

Reference numerals illustrate:

1. a base; 11. a through hole; 2. a glow wire; 3. a clamp; 31. a clamp seat; 32. a clamping box; 321. a back plate; 322. adjusting a screw; 323. a lofting cavity; 324. an elastic abutting block; 325. an elastic pad; 33. a test port; 34. a clamping rod; 35. a clamping groove; 36. a measuring ruler; 4. a driving mechanism; 41. a driving block; 411. a displacement block; 42. a power mechanism; 421. a driving motor; 422. driving a screw; 43. push-pull electromagnet; 44. a connecting rod; 5. a traction mechanism; 51. a traction rope; 52. rope grooves; 53. balancing weight; 54. a traction sheave; 6. a slideway; 7. a proximity switch; 8. and positioning a nut.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.

The embodiment provides a glow wire tester, combine fig. 1 and fig. 2, including base 1, fixedly connected with glow wire 2 on the base 1, be equipped with on the base 1 and be used for holding down the anchor clamps 3 of sample, be used for driving the actuating mechanism 4 that anchor clamps 3 removed and be used for pulling down the traction mechanism 5 of anchor clamps 3, anchor clamps 3 include anchor clamps seat 31, sliding connection has grip box 32 in anchor clamps seat 31, fixedly connected with clamping lever 34 on the grip box 32, be equipped with draw-in groove 35 on the anchor clamps seat 31 corresponding clamping lever 34, clamping lever 34 can the joint in draw-in groove 35, be equipped with the lofting chamber 323 in the grip box 32, the sample can be placed in lofting chamber 323, sliding connection has backplate 321 in the backplate 321, rotate on backplate 321 and be connected with adjusting screw 322, adjusting screw 322 wears to establish and threaded connection and grip box 32, backplate 321 keeps away from adjusting screw 322 one side fixedly connected with three elasticity supporting piece 324, elasticity supporting piece 324 can the butt in sample surface, grip box 32 keeps away from 321 one side fixedly connected with two elasticity gaskets 325 in the lofting chamber 323, two elasticity gaskets 325 just can the butt in sample chamber 323 make sample chamber 325 the sample chamber 32 and the clamping lever 32 can both be made the sample chamber can be made the sample chamber is moved in the clamping lever 32 and the clamping lever 32 is made the sample chamber is moved to the clamping lever 32 through adjusting screw 35, the clamping lever is convenient for the clamping lever is moved in sample chamber 32, the clamping lever is moved in the clamping chamber 32, sample chamber is made the sample chamber is just the sample chamber is convenient to the sample chamber.

The fixture seat 31 is provided with a test port 33, the test port 33 is communicated with the lofting cavity 323, the fixture seat 31 is fixedly connected with a measuring ruler 36 on one side surface of the self-provided test port 33, and the measuring ruler 36 can measure the flame height when a sample burns.

Referring to fig. 1 and 3, the driving mechanism 4 includes a driving block 41, the driving block 41 is slidably connected to the base 1, a displacement block 411 is fixedly connected to the driving block 41, a power mechanism 42 capable of driving the driving block 41 to move is arranged on the displacement block 411 and the base 1, the power mechanism 42 includes a driving motor 421, the driving motor 421 is fixedly connected to the base 1, a driving screw 422 is fixedly connected to an output shaft of the driving motor 421, the driving screw 422 penetrates through and is in threaded connection with the displacement block 411, a connecting rod 44 is fixedly connected to an output shaft of the push-pull electromagnet 43, the connecting rod 44 is far away from the self-arranged displacement block 411, one end of the connecting rod 44, far away from the push-pull electromagnet 43, is fixedly connected to the fixture seat 31, the driving screw 422 can be rotated by using the driving motor 421, the displacement block 411 can drive the driving block 41 to move so as to drive the push-pull electromagnet 43 to move, and the connecting rod 44 on the push-pull electromagnet 43 drives the fixture 3 to move, so as to drive the fixture 3 to approach or keep away from the glowing filament.

The base 1 is fixedly connected with a slide 6, the slide 6 is slidably connected with a proximity switch 7, the two sides of the slide 6 of the proximity switch 7 are respectively in threaded connection with a positioning nut 8, the proximity switch 7 can be fixed on the slide 6 by using the positioning nuts 8, the position of the proximity switch 7 on the slide 6 is determined, and the proximity switch 7 can control a driving motor 421 and a push-pull electromagnet 43.

The base 1 and the fixture seat 31 are provided with the traction mechanism 5, the traction mechanism 5 comprises a traction rope 51, two ends of the fixture seat 31, which are close to one side face of the push-pull electromagnet 43, are respectively provided with a rope groove 52, the traction rope 51 can be clamped in the rope grooves 52, two ends of the traction rope 51 are respectively bound with a balancing weight 53, two through holes 11 are formed in the base 1 corresponding to the two balancing weights 53, the balancing weights 53 can pass through the through holes 11, two traction pulleys 54 are fixedly connected to the base 1, two ends of the traction rope 51 can be respectively clamped in the two traction pulleys 54, when the push-pull electromagnet 43 is powered off, the shaft of the push-pull electromagnet 43 can slide freely, so that the connecting rod 44 can slide freely, at the moment, the fixture seat 31 can move towards the glow wire 2 continuously under the action of the traction rope 51 and the balancing weights 53, the fixture seat 31 can be controlled to strike the glow wire 2 with a certain force by the balancing weights 53, and the operation of workers is facilitated.

The application method of the utility model is as follows: the clamping box 32 is taken out of the clamp seat 31, a sample is placed in the lofting cavity 323, the sample is required to be tested, the side, which faces the lofting cavity 323 and is close to the test port 33, is made to face the lofting cavity 323, the adjusting screw 322 is rotated, the back plate 321 is made to move towards the sample, the elastic abutting block 324 and the elastic gasket 325 are made to abut against the surface of the sample, the sample is fixed in the clamping box 32, then the clamping box 32 is installed in the clamp seat 31, the clamping rod 34 is clamped in the clamping groove 35, then the traction rope 51 is clamped in the rope groove 52 and is clamped in the traction pulley 54, the two balancing weights 53 are made to pass through the through hole 11, the heights of the two balancing weights 53 are adjusted, the heights of the two balancing weights 53 are made to be identical, then, the driving motor 421 is started to enable the driving screw 422 to rotate, so that the displacement block 411 can be moved, the displacement block 411 can drive the driving block 41 to move to drive the push-pull electromagnet 43 to move, the connecting rod 44 on the push-pull electromagnet 43 drives the clamp 3 to move, so that the clamp 3 is driven to approach the glow wire, after the driving block 41 approaches the proximity switch 7, the driving motor 421 and the push-pull electromagnet 43 stop working, the clamp seat 31 continues to move towards the glow wire 2 under the action of the traction mechanism 5, a sample is abutted to the surface of the glow wire 2, test data is recorded, and the driving motor 421 and the push-pull electromagnet 43 are restarted to enable the clamp 3 to retract, so that a test can be completed.

The foregoing description of the preferred embodiment of the utility model is merely illustrative of the utility model, and is not intended to be limiting, since various modifications and variations of the utility model may be made to the user. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a glow wire tester, includes base (1), is equipped with glow wire (2) on base (1), and base (1) is keeping away from glow wire (2) one end sliding connection and has anchor clamps (3), is equipped with on anchor clamps (3) and base (1) and can pull anchor clamps (3) towards traction mechanism (5) that glow wire (2) removed, its characterized in that: the fixture (3) comprises a fixture seat (31), a clamping box (32) is arranged in the fixture seat (31), a back plate (321) is connected in the clamping box (32) in a sliding manner, an adjusting screw (322) is arranged on the clamping box (32) in a penetrating manner and in threaded connection, the adjusting screw (322) is rotationally connected to the back plate (321), a lofting cavity (323) is arranged on the clamping box (32), a testing port (33) is arranged on the fixture seat (31), and the testing port (33) is communicated with the lofting cavity (323).

2. The glow wire tester according to claim 1, wherein: the clamping box (32) is detachably connected to the clamp seat (31), clamping rods (34) are arranged on two sides of the clamping box (32), clamping grooves (35) are formed in the clamping seat (31) corresponding to the clamping rods (34), and the clamping rods (34) can be clamped in the clamping grooves (35).

3. A glow wire tester according to claim 2, wherein: an elastic supporting block (324) is arranged on one side surface, far away from the adjusting screw (322), of the back plate (321), and a plurality of elastic gaskets (325) are arranged in the clamping box (32).

4. A glow wire tester according to claim 3, wherein: the clamp seat (31) is provided with a measuring ruler (36) on one side of the clamp seat, which is provided with a test port (33).

5. The glow wire tester according to claim 1, wherein: traction mechanism (5) are including haulage rope (51), and anchor clamps seat (31) both ends all are equipped with rope groove (52), and haulage rope (51) can joint in rope groove (52), and haulage rope (51) both ends all are equipped with balancing weight (53), correspond balancing weight (53) and are equipped with through-hole (11) on base (1), and balancing weight (53) can pass through-hole (11), and base (1) corresponds two through-holes (11) and all is equipped with one traction pulley (54).

6. The glow wire tester according to claim 5, wherein: be equipped with actuating mechanism (4) on base (1), actuating mechanism (4) are including drive block (41), drive block (41) sliding connection is equipped with power unit (42) on base (1) and drive block (41), are equipped with push-pull electromagnet (43) on drive block (41), are equipped with connecting rod (44) on the output shaft of push-pull electromagnet (43), and connecting rod (44) keep away from drive block (41) one end and are connected in anchor clamps seat (31).

7. The glow wire tester according to claim 6, wherein: the power mechanism (42) comprises a driving motor (421), a driving screw (422) is arranged on an output shaft of the driving motor (421), the driving screw (422) is rotationally connected to the base (1), a displacement block (411) is arranged on the driving block (41), and the driving screw (422) penetrates through and is in threaded connection with the displacement block (411).

8. The glow wire tester according to claim 7, wherein: the base (1) is provided with a slide way (6), a proximity switch (7) is connected in the slide way (6), the proximity switch (7) can control a driving motor (421) and a push-pull electromagnet (43), a positioning nut (8) is connected to the proximity switch (7) through threads, and the positioning nut (8) can be abutted to the periphery of the slide way (6).