CN213747869U

CN213747869U - Furnace door safety device of test furnace

Info

Publication number: CN213747869U
Application number: CN202022736367.3U
Authority: CN
Inventors: 司长策
Original assignee: Tianjin Sikenuo Heat Energy Technology Co ltd
Current assignee: Tianjin Sikenuo Heat Energy Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-20
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses an experimental stove furnace gate safety device, the induction cooker comprises a cooker bod, furnace body one side middle part is equipped with the furnace gate, the furnace gate both sides all are equipped with the bracing piece, backup pad fixed connection is passed through to the bracing piece top, the backup pad below is equipped with two connecting blocks, connecting block lower extreme and safety hook fixed connection, the safety hook other end and furnace gate upper end fixed connection. This kind of experimental stove furnace gate safety device, when the furnace gate moves the below extreme position, there is the bearing wheel to bear furnace gate weight, when the furnace gate moves the top position, stop position is decided for the furnace gate to limit switch, the motor bears furnace gate weight, machinery is stopped firmly and can effectually prevent that limit switch is malfunctioning, thereby lead to the furnace gate to damage, the safety hook can prevent when the motor damages, the occurence of failure that falls, this kind of safety device simple structure, convenient operation can effectually prevent that the furnace gate from falling, not only protective apparatus safety, avoid the casualties simultaneously.

Description

Furnace door safety device of test furnace

Technical Field

The utility model relates to a test furnace technical field specifically is a test furnace gate safety device.

Background

The combustion performance refers to all physical and chemical changes generated when a material is combusted or meets fire, so that the performance is measured by the characteristics of the ignitability and flame propagation property of the surface of the material, heating, fuming and charring, weight loss, toxic products and the like, and the existing combustion performance test is carried out through a test furnace. In the existing test furnace door lifting mechanism, the lifting of the furnace door is mostly directly driven by a motor, the upper limit and the lower limit of the traditional lifting mechanism are positioned by a limit switch, the lower limit bears the weight of the furnace door by a bearing wheel, the upper limit bears by a steel wire rope (or a ring chain) of a driving mechanism, but the vertical lifting furnace door has potential safety hazards in the using process. Once the driving motor or the traction rope breaks down, the furnace door can suddenly fall, thereby causing the accidents of equipment damage and casualties. Therefore, a safety device for the furnace door of the test furnace is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a test furnace gate safety device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an experimental stove furnace gate safety device, includes the furnace body, furnace body one side middle part is equipped with the furnace gate, the furnace gate both sides all are equipped with the bracing piece, backup pad fixed connection is passed through to the bracing piece top, backup pad one side top fixed mounting motor, the last take-up pulley that is equipped with of motor rotation axis, backup pad top middle part is equipped with the bearing frame, fixed mounting leading wheel on the bearing frame, fixed connection cable wire on the take-up pulley, the cable wire other end passes through leading wheel and furnace gate fixed connection, the backup pad below is equipped with the connecting block of two symmetries, connecting block lower extreme and safety hook fixed connection, safety hook other end rope end and furnace gate upper end fixed connection, the bracing piece top is equipped with the upper limit machinery that two symmetries and blocks firmly.

Preferably, the furnace body is positioned below the furnace door and is provided with a plurality of supporting wheels which are arranged at equal intervals.

Preferably, the mounting groove has all been seted up to the furnace gate both sides, the mounting groove is equipped with the gyro wheel that a plurality of equidistance were arranged, the gyro wheel is through round pin axle and mounting groove lateral wall swing joint, be equipped with on the bracing piece with gyro wheel assorted race.

Preferably, a limit switch is fixedly arranged on the top below the supporting plate, and a trigger of the limit switch is positioned below the mechanical dead gear section.

Preferably, reinforcing rods are arranged below the supporting plate and on two sides of the supporting rod.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of experimental stove furnace gate safety device, when the furnace gate moves the below extreme position, there is the bearing wheel to bear furnace gate weight, and the furnace gate bottom is close ground, no potential safety hazard, when the furnace gate moves the top position, stop position is decided for the furnace gate to limit switch, the furnace gate has the take the altitude apart from ground this moment, bear furnace gate weight by the motor, simultaneously the machinery is stopped firmly and can effectually prevent that limit switch is malfunctioning, thereby lead to the furnace gate to damage, the safety hook can prevent when the motor damages, the occurence of failure that falls, this kind of safety device simple structure, convenient operation can effectually prevent that the furnace gate from falling, not only protective apparatus safety, avoid the casualties simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of part A of the present invention;

in the figure: 1 furnace body, 2 furnace doors, 3 supporting rods, 4 supporting plates, 5 motors, 6 winding wheels, 7 bearing seats, 8 guide wheels, 9 steel cables, 10 anti-falling devices, 11 connecting blocks, 12 mechanical dead stops, 13 supporting wheels, 14 mounting grooves, 15 rollers, 16 wheel grooves, 17 limit switches and 18 reinforcing rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a test furnace door safety device comprises a furnace body 1, a furnace door 2 is arranged in the middle of one side of the furnace body 1, support rods 3 are arranged on two sides of the furnace door 2, the upper parts of the support rods 3 are fixedly connected through a support plate 4, a motor 5 is fixedly arranged above one side of the support plate 4, a winding wheel 6 is arranged on a rotating shaft of the motor 5, a bearing seat 7 is arranged in the middle of the upper part of the support plate 4, a guide wheel 8 is fixedly arranged on the bearing seat 7, a steel cable 9 is fixedly connected on the winding wheel 6, the other end of the steel cable 9 is fixedly connected with the furnace door 2 through the guide wheel 8, a working chamber of the motor 5 is provided, the winding wheel 6 on the rotating shaft of the motor 5 winds up the steel cable 9, so as to lift the furnace door 2, two symmetrical connecting blocks 11 are arranged below the support plate 4, the lower end of each connecting block 11 is fixedly connected with a falling protector 10, and the rope end of the other end of the falling protector 10 is fixedly connected with the upper end of the furnace door 2, two symmetrical upper limit mechanical dead stops 12 are arranged above the supporting rod 3, and the falling protector 10 can effectively prevent the furnace door 2 from falling when the motor 5 breaks down, so that the damage to instruments and personnel is avoided.

Further, the furnace body 1 is located 2 below of furnace gate and is equipped with a plurality of bearing wheels 13 that the equidistance was arranged, and bearing wheel 13 plays the effect of support when furnace gate 2 falls.

Further say, mounting groove 14 has all been seted up to 2 both sides of furnace gate, mounting groove 14 is equipped with the gyro wheel 15 that a plurality of equidistance were arranged, gyro wheel 15 is through round pin axle and 14 lateral wall swing joint of mounting groove, be equipped with on the bracing piece 3 with 15 assorted race 16 of gyro wheel, gyro wheel 15 mutually supports with race 16, not only the promotion and the decline of the furnace gate 2 of being convenient for, still play direction and spacing effect to furnace gate 2 simultaneously.

Furthermore, a limit switch 17 is fixedly arranged below the supporting plate 4, a trigger of the limit switch 17 is positioned below the section of the mechanical dead stop 12, and the limit switch 17 limits the stop position of the furnace door 2 during ascending, so that the upper part of the furnace door 2 is prevented from colliding with the supporting plate 4, and the damage of instruments is avoided.

Furthermore, reinforcing rods 18 are arranged below the supporting plate 4 and on two sides of the supporting rod 3, and the reinforcing rods 18 increase the supporting strength of the supporting rod 3.

Specifically, the utility model discloses in, 2 motion modes of furnace gate are operation from top to bottom, and when furnace gate 2 moved the below extreme position, bearing wheel 13 born furnace gate weight, and 2 bottoms of furnace gate are close ground moreover, no potential safety hazard. When the furnace door 2 moves to the uppermost position, the limit switch 17 fixes the stop position for the furnace door 2, the furnace door 2 has a certain height from the ground at the moment, the motor 5 bears the weight of the furnace door 2, and meanwhile, the mechanical dead gear prevents the limit switch 17 from being out of order in the rising process of the furnace door 2 and protects instruments.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an experimental stove furnace gate safety device, includes furnace body (1), its characterized in that: the furnace body (1) is characterized in that a furnace door (2) is arranged in the middle of one side of the furnace body (1), support rods (3) are arranged on two sides of the furnace door (2), the support rods (3) are fixedly connected through a support plate (4), a motor (5) is fixedly arranged above one side of the support plate (4), a winding wheel (6) is arranged on a rotating shaft of the motor (5), a bearing seat (7) is arranged in the middle of the upper side of the support plate (4), a guide wheel (8) is fixedly arranged on the bearing seat (7), a steel cable (9) is fixedly connected on the winding wheel (6), the other end of the steel cable (9) is fixedly connected with the furnace door (2) through the guide wheel (8), two symmetrical connecting blocks (11) are arranged below the support plate (4), the lower end of each connecting block (11) is fixedly connected with a falling protector (10), and the rope end of the other end of the falling protector (10) is fixedly connected with the upper end of the furnace door (2), two symmetrical upper limit mechanical dead stops (12) are arranged above the supporting rod (3).

2. The safety device for the test furnace door of claim 1, wherein: the furnace body (1) is arranged below the furnace door (2) and is provided with a plurality of supporting wheels (13) which are arranged at equal intervals.

3. The safety device for the test furnace door of claim 1, wherein: mounting groove (14) have all been seted up to furnace door (2) both sides, mounting groove (14) are equipped with gyro wheel (15) that a plurality of equidistance were arranged, gyro wheel (15) are through round pin axle and mounting groove (14) lateral wall swing joint, be equipped with on bracing piece (3) with gyro wheel (15) assorted race (16).

4. The safety device for the test furnace door of claim 1, wherein: a limit switch (17) is fixedly arranged on the lower portion of the supporting plate (4), and a trigger of the limit switch (17) is located below the section of the mechanical dead gear (12).

5. The safety device for the test furnace door of claim 1, wherein: reinforcing rods (18) are arranged below the supporting plate (4) and on two sides of the supporting rod (3).