CN114305834B - Orthopedic patient's arm abduction brace - Google Patents

Abstract

The invention provides an arm abduction brace for orthopedic patients, which solves the existing problems of being unable to perform hot compress treatment on the patient during the fixation process of the patient's arm, unable to massage the patient's arm, and unable to passively exercise the patient's arm; including fixation Ring frame, the fixed ring frame is connected to a rotating arc plate, the upper end of the rotating arc plate is fixedly connected to a support frame, the support frame is fixedly connected to a big arm ring frame, the lower end of the big arm ring frame is rotatably connected to a small arm ring frame, and the large arm ring frame is connected to a small arm ring frame. A reciprocating screw is rotatably connected to the front end of the arm ring frame. The reciprocating screw is connected to a micro motor fixedly connected to the lower end of the big arm ring frame. A sliding sleeve is threadedly connected to the reciprocating screw, and an adjusting crank is rotatably connected to the sliding sleeve. The adjusting crank is also connected to a sliding sleeve. One end is rotatably connected to the end of the small arm ring frame away from the big arm ring frame. There are a number of connecting groove rails on the big arm ring frame and the small arm ring frame, and a magic band is connected between the two opposite connecting groove rails; the structure of the invention Exquisite and highly practical.

Description

An arm abduction brace for orthopedic patients

Technical field

The invention relates to the technical field of arm braces, specifically an arm abduction brace for orthopedic patients.

Background technique

Among orthopedic patients, arm fractures are particularly common. In the early stage of fracture, the main task is to fix the fracture site to avoid dislocation and malunion. With the formation of callus, patients need to perform adaptive rehabilitation exercises to avoid muscle damage. Problems of atrophy and muscle adhesion may cause permanent dysfunction of the limbs if rehabilitation exercises are not performed in time or if rehabilitation exercises are not performed. Therefore, it is particularly important to fix the limbs and perform rehabilitation exercises.

However, there are currently several problems in the process of fixing the arm of fractured patients and performing rehabilitation exercises:

1. During the process of fixing the patient's arm, most of them use plaster for fixation, which has poor air permeability and a large fixation area. The patient's muscles cannot be massaged to a small extent, which makes the blood circulation poor, resulting in slow swelling or even Affects healing speed;

2. During the patient's rehabilitation exercise, the patient directly removes the plaster. After the exercise is completed, the patient's arm cannot be effectively supported, causing the arm to bear weight in advance, resulting in poor healing effects, which cannot be achieved with existing protective gear. Passive training of the arms;

3. When the patient is undergoing a fixed detumescence process, applying hot compress to the affected area will help reduce swelling and increase the blood circulation speed. However, the existing plaster and protective gear cannot achieve the hot compress function for the patient.

Therefore, the present invention provides an arm abduction brace for orthopedic patients to solve this problem.

Contents of the invention

In view of the above situation, in order to overcome the shortcomings of the prior art, the present invention provides an arm abduction brace for orthopedic patients, which effectively solves the problem that the patient cannot be subjected to hot compress treatment and the patient's arm cannot be massaged during the fixation process of the patient's arm, and The problem of not being able to passively exercise the patient’s arms.

The invention includes a fixed ring frame, a rotating arc-shaped plate is connected to the fixed ring frame, a support frame is fixedly connected to the upper end of the rotating arc-shaped plate, and a boom ring frame is fixedly connected to the support frame, so The lower end of the boom ring frame is rotatably connected to a small arm ring frame, and the front end of the big arm ring frame is rotatably connected to a reciprocating screw, and the reciprocating screw is fixedly connected to a miniature micro-arm ring frame at the lower end The motor is connected, the reciprocating screw is threadedly connected with a sliding sleeve, the sliding sleeve is rotatably connected with an adjusting crank, and the other end of the adjusting crank and the small arm ring are away from the big arm ring One end of the frame is rotated and connected;

There are a number of connecting groove rails on the big arm ring frame and the small arm ring frame, and magic belts are connected between the two opposite connecting groove rails. The small arm ring frame is far away from the big arm ring frame. One section is detachably connected with a sling, and elastic sponge blocks are fixedly connected inside the upper arm ring frame and the lower arm ring frame.

Preferably, the upper arm ring frame and the lower arm ring frame are fixedly connected with a number of equally spaced pressing air bag rings, and the pressing air bag rings are evenly connected to the micro air pumps fixed on the big arm ring frame. Connected, an electromagnetic ventilation valve is fixedly connected between each pressing air bag ring and the micro air pump.

Preferably, the sliding sleeve is fixedly connected to a supporting sliding frame, the supporting sliding frame is rotatably connected to an L connecting rod, and the L connecting rod is fixedly connected to a massage sleeve box at one end away from the supporting sliding frame. A telescopic sliding plate is slidably connected in the massage box, and a telescopic spring is fixedly connected to one end of the telescopic sliding plate close to the massage box, and the other end of the telescopic spring is fixedly connected to the massage box. A plurality of massage rollers are rotatably connected to one end of the telescopic slide plate close to the boom ring frame, and the massage rollers are made of elastic material.

Preferably, the lower end of the big arm ring frame is fixedly connected to a shrinking elbow pipe, and the other end of the shrinking elbow pipe is fixedly connected to the small arm ring frame, and the shrinking elbow pipe is a folding tube.

Preferably, the fixed ring frame is fixedly connected to a support bracket placed at the lower end of the support frame, the support frame is rotationally connected to the support bracket, and the support frame is close to the An arc surface is provided on one side of the fixed ring frame, a sliding track is provided on the supporting plate, and a sliding pin rod placed on the sliding track is rotatably connected to the lower end of the supporting frame.

Preferably, the lower end of the support plate is rotatably connected to a driven gear, the driven gear is eccentrically rotatably connected to a rotating connecting rod, and the other end of the rotating connecting rod is rotationally connected to the sliding pin rod, A driving gear is meshed next to the driven gear, and the driving gear is connected to a swing motor fixedly connected to the supporting plate.

Preferably, the fixed ring frame is a telescopic ring, the telescopic ring is made of hard material, the upper and lower end surfaces of the telescopic ring have rounded corners, and the edges of the big arm ring frame and the small arm ring frame are The edges all start to be rounded.

Preferably, the insides of the big arm ring frame and the small arm ring frame are hollow structures forming a heating chamber, and a heating resistance wire is fixedly connected to the heating chamber.

The present invention improves the existing arm protector by adding a rotating arc plate, a support frame, a big arm ring frame, a small arm ring frame, a reciprocating screw, a sliding sleeve and an adjusting crank to effectively solve the problem of the forearm bending angle. The problem of adjusting and exercising the telescopic and bending of the forearm; by setting the pressing air bag ring, electromagnetic ventilation valve and micro air pump, the problem of overall massage of the patient's arm is effectively solved; by setting the L connecting rod and massage box cover , telescopic skateboards, telescopic springs and massage rollers effectively solve the problem of synchronous massage of the patient's upper arm during flexion and extension exercises; by setting the contraction elbow, the problem of limiting and fixing the patient's elbow is effectively realized; The support plate, arc surface, sliding track, sliding pin rod, driving gear, driven gear and rotating connecting rod effectively solve the problem of swinging out the patient's arm; the structure is simple and stable, and has a high universality. Adaptability.

Description of the drawings

Figure 1 is a perspective view of the present invention.

Figure 2 is a schematic diagram of the connection between the big arm ring frame and the small arm ring frame according to the present invention.

Figure 3 is a schematic diagram of the support frame rotation control mechanism of the present invention.

Figure 4 is a schematic cross-sectional view of the forearm ring frame of the present invention.

Figure 5 is a schematic cross-sectional view of the boom ring frame of the present invention.

Figure 6 is a schematic cross-sectional view of the upper arm massage mechanism of the present invention.

Figure 7 is a partial structural diagram of the present invention.

Detailed ways

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings 1 to 7 . The structural contents mentioned in the following embodiments are all referred to the accompanying drawings of the description.

Various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Embodiment 1. The present invention is an arm abduction brace for orthopedic patients, which includes a fixed ring frame 1. The fixed ring frame 1 is fixed on the patient's waist and is used as a fixed support base for subsequent structures. The fixed ring frame 1 The ring frame 1 is connected with a rotating arc plate 2. In this embodiment, the rotating arc plate 2 is fixedly connected to the fixed ring frame 1. Through the fixed ring frame 1 and the rotating arc The shaped plate 2 provides fixed support for subsequent structures. The upper end of the rotating arc plate 2 is fixedly connected with a support frame 3. The support frame 3 is fixedly connected with a boom ring frame 4. The boom ring frame 4 The lower end is rotatably connected to a forearm ring frame 5. The forearm ring frame 5 rotates around the big arm ring frame 4 to realize flexion and extension of the forearm ring frame 5 and the flexion and extension of the patient's forearm. Exercise, the front end of the boom ring frame 4 is rotatably connected to a reciprocating screw 6, the reciprocating screw 6 is connected to a micro motor fixedly connected to the lower end of the boom ring frame 4, the reciprocating screw 6 is threaded with a sliding sleeve 7, and the rotation of the micro motor drives the synchronous rotation of the reciprocating screw 6. The rotation of the reciprocating screw 6 drives the sliding sleeve 7 to reciprocate up and down, so The sliding sleeve 7 is rotatably connected to an adjusting crank 8. The other end of the adjusting crank 8 is rotatably connected to the end of the small arm ring frame 5 away from the big arm ring frame 4. The adjusting crank 8 is During the up and down sliding process of the sliding sleeve 7, the adjusting crank 8 drives the forearm ring frame 5 to rotate around the big arm ring frame 4, thereby achieving the flexion and extension exercise of the forearm and the alignment of the forearm. Adjustment and fixation of arm flexion and extension angle;

The upper arm ring frame 4 and the forearm ring frame 5 are provided with a number of connecting groove rails 9, and magic belts are connected between the two opposite connecting groove rails 9. Through the magic belts, the patient's arms can be connected. It is fixed inside the big arm ring frame 4 and the forearm ring frame 5, and the patient's arm is fixed through the big arm ring frame 4 and the forearm ring frame 5, and the forearm ring frame 5 is far away from the A section of the upper arm ring frame 4 is detachably connected with a sling. The sling is used to assist in fixing the forearm ring frame 5. The forearm ring frame 5 is hung on the other side of the patient. On the shoulders, the fixed ring frame 1 is prevented from bearing weight for a long time, causing discomfort to the patient's waist. The upper arm ring frame 4 and the forearm ring frame 5 are both fixedly connected with elastic sponge blocks 10 inside, which avoids The inner walls of the above-mentioned upper arm ring frame 4 and lower arm ring frame 5 cause pressure wounds on the patient's arms, causing secondary injury to the patient;

During the specific implementation of this embodiment, the micro motor is first started to drive the reciprocating screw 6 to rotate, and the reciprocating screw 6 rotates to drive the sliding sleeve 7 and the adjusting crank 8 to rotate, thereby realizing the adjustment of all the functions. The position of the forearm ring frame 5 is adjusted. After the adjustment is completed, the fixed ring frame 1 is fixed on the patient's waist, and then the patient's arm is placed on the upper arm ring frame 4 and the forearm ring frame. Within 5, the micro motor is then started to adjust the position of the patient's forearm to realize the adjustment of the forearm ring frame 5. After adjusting to the appropriate position, the patient's arm is fixed through the magic band, and at the same time When the patient needs rehabilitation exercise, the micro motor is started, and the rotation of the micro motor drives the reciprocating screw 6 to rotate and drive the sliding sleeve 7 to reciprocate up and down, thereby driving the adjusting link to slide synchronously. , and then drive the forearm ring frame 5 to rotate around the big arm ring frame 4, thereby achieving the exercise and rehabilitation of the patient's arm.

Embodiment 2: On the basis of Embodiment 1, when the arm is fixed through the upper arm ring frame 4 and the forearm ring frame 5, due to the long-term placement and fixation, the patient's muscles atrophy and blood circulation are not smooth. , so this embodiment provides a structure to assist blood circulation. Specifically, the upper arm ring frame 4 and the forearm ring frame 5 are fixedly connected with a number of equally spaced pressing airbag rings 11. The air bag rings 11 are all connected to the micro air pumps fixed on the big arm ring frame 4, and an electromagnetic ventilation valve is fixedly connected between each of the pressing air bag rings 11 and the micro air pump. By controlling the The opening and closing of the electromagnetic ventilation valve realizes the inflation and deflation of the corresponding pressing air bag. The micro air pump inflates and deflates the pressing air bag ring 11. During the inflation and deflation process of the pressing air bag ring 11 , to achieve massage and compression of the patient's arm and promote blood circulation in the patient's arm.

Embodiment 3: On the basis of Embodiment 2, the patient's forearm can perform flexion and extension exercises. At the same time, the upper arm can only be massaged by pressing the air bag ring 11. The massage effect is limited and cannot satisfy the exercise effect of the upper arm. Therefore, this embodiment provides a mechanism for auxiliary massaging of the upper arm. Specifically, the sliding sleeve 7 is fixedly connected to a supporting sliding frame 12, and the supporting sliding frame 12 is rotatably connected to an L connecting rod 13, so that the The support sliding frame 12 and the L connecting rod 13 slide synchronously with the sliding sleeve 7. The L connecting rod 13 is fixedly connected to a massage sleeve box 14 at one end away from the supporting sliding frame 12. The massage sleeve A telescopic slide plate 15 is slidably connected in the box 14, and a telescopic spring 16 is fixedly connected to one end of the telescopic slide plate 15 close to the massage box 14. Under the action of the telescopic spring 16 and external force, the telescopic slide plate 15 15 slides in the massage box cover, the other end of the telescopic spring 16 is fixedly connected to the massage box 14, and the telescopic slide plate 15 is rotatably connected to one end of the telescopic slide 15 close to the big arm ring frame 4. Massage roller 17. The massage roller 17 is made of elastic material. When the massage box 14 slides up and down, the massage roller 17 is driven to rotate while sliding on the patient's arm, thereby realizing the massage of the patient's arm. Massage, at the same time, under the action of the telescopic spring 16, the massage roller 17 is in close contact with the patient's upper arm, which increases the massage effect.

Embodiment 4, based on Embodiment 1, when the patient's arm is limited through the upper arm ring frame 4 and the lower arm ring frame 5, the patient's elbow is not supported and fixed, and at the same time, the patient's elbow cannot be fixed. The patient's elbow is protected, so this embodiment provides a structure for protecting the elbow and limiting and fixing it. Specifically, the lower end of the upper arm ring frame 4 is fixedly connected with a shrinking elbow 18, and the shrinking elbow is The other end of the bent tube 18 is fixedly connected to the forearm ring frame 5. The shrinkable bent tube 18 is a folding tube. The fixed limit and protection of the patient's elbow are achieved through the shrinkable bent tube 18. At the same time, The shrinkable elbow tube 18 is a folding tube, which can be adaptively adjusted along with the rotation of the forearm ring frame 5 to ensure the smooth rotation of the forearm ring frame 5 .

Embodiment 5, based on Embodiment 1, during the process of the patient's arm rehabilitation exercise, the patient's arm needs to be abducted. Therefore, this embodiment provides a structure for the patient's arm abduction exercise. Specifically, the The fixed ring frame 1 is fixedly connected to a support bracket 19 placed at the lower end of the support bracket 3. The support bracket 3 and the support bracket 19 are rotationally connected. The support bracket 3 is close to the The fixed ring frame 1 is provided with an arc surface 20 on one side, so that the support frame 3 can rotate smoothly on the support plate 19 without interference. The support plate 19 is provided with an arc surface 20. Sliding track 21, the lower end of the support frame 3 is rotatably connected to a sliding pin 22 placed on the sliding track 21. Under the action of the sliding pin 22 sliding in the sliding track 21, the The support frame 3 rotates on the support plate 19 to realize the abduction activity of the arm. At the same time, in order to ensure the stability of the arm during inactivity, in this embodiment, the sliding pin 22 The lower end is threaded with a fastening nut, and the fastening nut is used to limit and fix the sliding pin rod 22, thereby preventing the support frame 3 from shaking during the fixed positioning period.

Embodiment 6: Based on Embodiment 5, during the early rehabilitation exercise process, the patient needs to perform passive exercises to avoid secondary swelling and pain in the patient. Therefore, this embodiment provides a structure for passively exercising the patient's arms. , specifically, the lower end of the support plate 19 is rotatably connected to a driven gear 23, the driven gear 23 is eccentrically rotatably connected to a rotating link 24, and the other end of the rotating link 24 is connected to the The sliding pin rod 22 is rotationally connected, and during the rotation of the driven gear 23, the rotating connecting rod 24 is driven to move eccentrically, thereby driving the sliding pin rod 22 to slide back and forth in the sliding track 21, and thus The support frame 3 is driven to rotate back and forth to achieve abduction exercise for the patient's arm. A driving gear 25 is engaged next to the driven gear 23, and the driving gear 25 is fixedly connected to the support plate 19. The rotation of the swing motor drives the driving gear 25 to rotate, and the driving gear 25 rotates, which in turn drives the driven gear 23 to rotate, and the driven gear 23 rotates and then passes through The rotating connecting rod 24 and sliding pin rod 22 drive the supporting frame 3 to rotate, so that the patient's arm can be abducted and exercised.

Embodiment 7. Based on Embodiment 1, in order to adapt to patients of different sizes, this embodiment provides a structure that can be adjusted for different patients and ensure patient comfort. Specifically, the fixed ring frame 1 It is a telescopic ring 26, and the telescopic ring 26 is made of hard material. Through the telescopic ring 26, the inner diameter of the fixed ring frame 1 can be adjusted to adapt to patients of different sizes. The upper and lower end surfaces of the telescopic ring 26 both have rounded corners 27, and the edges of the upper arm ring frame 4 and the forearm ring frame 5 all have rounded corners 27, ensuring the patient's comfort.

Embodiment 8 is based on Embodiment 1. In the early stage of a patient's fracture, swelling will occur. Hot compresses can effectively reduce swelling and enhance blood circulation. Therefore, this embodiment provides a structure that does not require removal of protective gear for hot compresses. Specifically, the upper arm ring frame 4 and the lower arm ring frame 5 are hollow structures inside to form a heating chamber 28. A heating resistance wire 29 is fixedly connected to the heating chamber 28. Through the heating resistance wire 29 An external power supply is connected to achieve hot compress on the patient's arm. At the same time, in order to ensure the effect and safety of the hot compress, a temperature sensor is fixedly connected to the heating chamber 28, and the temperature in the heating chamber 28 is measured through the temperature sensor. Monitor and control the opening and closing of the heating resistance wire 29.

When the present invention is specifically used, first start the micro motor to drive the reciprocating screw 6 to rotate, and the reciprocating screw 6 rotates to drive the sliding sleeve 7 and the adjusting crank 8 to rotate, thereby adjusting the position of the forearm ring frame 5. After the adjustment is completed, The fixed ring frame 1 is fixed on the patient's waist, and then the patient's arm is placed in the upper arm ring frame 4 and the forearm ring frame 5, and then the micro motor is started to adjust the position of the patient's forearm to realize the adjustment of the forearm ring frame. 5, after adjusting to the appropriate position, fix the patient's arm through the magic band. At the same time, when the patient needs rehabilitation exercise, start the micro motor, and the micro motor rotates to drive the reciprocating screw 6 to rotate to drive the sliding sleeve 7 to reciprocate up and down, and then The adjusting connecting rod is driven to slide synchronously, and then the small arm ring frame 5 is driven to rotate around the big arm ring frame 4, thereby realizing the exercise and rehabilitation of the patient's arm. At the same time, during the sliding process of the sliding sleeve 7, the sliding frame 12 and L are connected through the support The rod 13, the massage box cover and the massage roller 17 realize the massage of the patient's upper arm;

When it is necessary to perform abduction exercise on the patient, the swing motor is started, and the swing motor drives the support plate to rotate through the driving gear 25, the driven gear 23, the rotating connecting rod 24, the sliding pin 22 and the sliding track 21, thereby realizing the rotation of the patient's arm. Outward Bound Exercise.

The present invention improves the existing arm protector by adding a rotating arc plate, a support frame, a big arm ring frame, a small arm ring frame, a reciprocating screw, a sliding sleeve and an adjusting crank to effectively solve the problem of the forearm bending angle. The problem of adjusting and exercising the telescopic and bending of the forearm; by setting the pressing air bag ring, electromagnetic ventilation valve and micro air pump, the problem of overall massage of the patient's arm is effectively solved; by setting the L connecting rod and massage box cover , telescopic skateboards, telescopic springs and massage rollers effectively solve the problem of synchronous massage of the patient's upper arm during flexion and extension exercises; by setting the contraction elbow, the problem of limiting and fixing the patient's elbow is effectively realized; The support plate, arc surface, sliding track, sliding pin rod, driving gear, driven gear and rotating connecting rod effectively solve the problem of swinging out the patient's arm; the structure is simple and stable, and has a high universality. Adaptability.

Claims (5)

1. The utility model provides an orthopedic patient's arm abduction brace, includes fixed ring frame (1), its characterized in that, fixed ring frame (1) on be connected with rotation arc (2), rotation arc (2) upper end fixedly connected with support frame (3), support frame (3) on fixedly connected with big arm ring frame (4), big arm ring frame (4) lower extreme rotationally connected with forearm ring frame (5), big arm ring frame (4) front end rotationally connected with reciprocating screw (6), reciprocating screw (6) and fixed connection be in micro motor of big arm ring frame (4) lower extreme link to each other, reciprocating screw (6) on threaded connection have sliding sleeve (7), sliding sleeve (7) on rotationally connected with adjusting crank (8), adjusting crank (8) other end and forearm ring frame (5) keep away from big arm ring frame (4) one end rotationally connected;

the large arm ring frame (4) and the small arm ring frame (5) are provided with a plurality of connecting groove rails (9), a magic tape is connected between the two opposite connecting groove rails (9), one section of the small arm ring frame (5) far away from the large arm ring frame (4) is detachably connected with a hanging belt, and elastic sponge blocks (10) are fixedly connected inside the large arm ring frame (4) and the small arm ring frame (5);

the novel massage device is characterized in that a supporting sliding frame (12) is fixedly connected to the sliding sleeve (7), an L connecting rod (13) is rotatably connected to the supporting sliding frame (12), a massage sleeve box (14) is fixedly connected to one end of the L connecting rod (13) away from the supporting sliding frame (12), a telescopic sliding plate (15) is slidably connected to the massage sleeve box (14), a telescopic spring (16) is fixedly connected to one end of the telescopic sliding plate (15) close to the massage sleeve box (14), the other end of the telescopic spring (16) is fixedly connected with the massage sleeve box (14), a plurality of massage rollers (17) are rotatably connected to one end of the telescopic sliding plate (15) close to the large arm ring frame (4), and the massage rollers (17) are made of elastic materials;

the fixed ring frame (1) is fixedly connected with a supporting plate (19) arranged at the lower end of the supporting frame (3), the supporting frame (3) is rotationally connected with the supporting plate (19), an arc-shaped surface (20) is arranged on one side, close to the fixed ring frame (1), of the supporting frame (3), a sliding rail (21) is arranged on the supporting plate (19), and a sliding pin rod (22) arranged at the sliding rail (21) is rotationally connected at the lower end of the supporting frame (3);

the lower end of the supporting support plate (19) is rotationally connected with a driven gear (23), the driven gear (23) is eccentrically rotationally connected with a rotating connecting rod (24), the other end of the rotating connecting rod (24) is rotationally connected with a sliding pin rod (22), a driving gear (25) is meshed beside the driven gear (23), and the driving gear (25) is connected with a swing motor fixedly connected to the supporting support plate (19).

2. The orthopedic patient arm abduction brace according to claim 1, wherein a plurality of equally spaced pressing air bag rings (11) are fixedly connected inside the big arm ring frame (4) and the small arm ring frame (5), the pressing air bag rings (11) are connected with micro air pumps fixed on the big arm ring frame (4), and an electromagnetic ventilation valve is fixedly connected between each pressing air bag ring (11) and each micro air pump.

3. The orthopedic patient arm abduction brace of claim 1, wherein a contraction elbow (18) is fixedly connected to the lower end of the large arm ring frame (4), the other end of the contraction elbow (18) is fixedly connected to the small arm ring frame (5), and the contraction elbow (18) is a folding tube.

4. The orthopedic patient arm abduction brace according to claim 1, wherein the fixed ring frame (1) is a telescopic ring (26), the telescopic ring (26) is made of hard materials, rounded corners (27) are formed on the upper end face and the lower end face of the telescopic ring (26), and the edges of the big arm ring frame (4) and the small arm ring frame (5) are rounded corners (27).

5. The orthopedic patient arm abduction brace according to claim 1, wherein the big arm ring frame (4) and the small arm ring frame (5) are hollow structures to form a heating cabin (28), and a heating resistance wire (29) is fixedly connected in the heating cabin (28).