CN216415238U

CN216415238U - Height adjusting device for warming facility

Info

Publication number: CN216415238U
Application number: CN202123328852.8U
Authority: CN
Inventors: 李倩; 王兴鹏; 付媛媛; 李国辉; 唐茂淞
Original assignee: Tarim University
Current assignee: Tarim University
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-03
Anticipated expiration: 2031-12-28

Abstract

The utility model provides a temperature-increasing facility height adjusting device, which belongs to the technical field of temperature-increasing facilities and solves the problems that most of the existing temperature-increasing facilities use manual height adjustment, the tests are inconvenient to be carried out orderly and efficiently under the temperature-increasing test condition, and the existing temperature-increasing facilities are inconvenient to adjust the temperature-increasing angle, so that the crops are heated unevenly; comprises a support body; the driving mechanism is installed on the outer side of the supporting main body, and the connecting mechanism is arranged on the outer side of the supporting main body in a sliding mode; the bottom of the connecting mechanism is provided with a control device, and the bottom of the control device is provided with a heating device; through the arrangement of the conical gear A and the conical gear at the top end of the driving shaft, the effect that the driving shaft drives the winding reel to rotate so as to wind or loosen the driving rope is achieved, and the purpose that the driving rope is matched with the second pulley to drive the infrared heating pipe to move up and down is achieved; the function of adjusting the height of the infrared heating pipe along with the growth height of crops is achieved; so as to achieve more ideal warming effect.

Description

Height adjusting device for warming facility

Technical Field

The utility model belongs to the technical field of the facility that heats, more specifically say, in particular to facility height adjusting device heats.

Background

According to global meteorological data, the gas temperature shows an increasing trend in decades or hundreds of years, supports are provided for growth and development of crops under the temperature increasing condition, and more subjects are subjected to temperature increasing tests.

Based on the aforesaid, the manual height-adjusting is used mostly to the facility that heats now, needs two people to cooperate to accomplish moreover, and the orderly high efficiency of the test of being not convenient for goes on under this experimental condition that heats, and current facility that heats is not convenient for adjust the angle that heats, adopts fixed structure for a large part, leads to the crop to be heated inhomogeneous, has reduced the practicality of the facility that heats.

Therefore, in view of the above, the present invention provides a device for adjusting the height of a heating facility, which is improved in view of the existing structure and defects, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a facility high adjusting device heats to solve the current facility that heats that proposes in the above-mentioned background art and use manual height-adjusting mostly, the orderly high efficiency of test of not being convenient for goes on under this experimental condition that heats, and current facility that heats is not convenient for adjust the angle that heats, leads to the inhomogeneous problem of crop being heated.

The utility model relates to a facility altitude mixture control device heats purpose and efficiency, is reached by following specific technological means:

a temperature-increasing facility height adjusting device comprises a supporting main body; the support body includes: the bottom plate main body is arranged into a square structure, and the number of the bottom plates is two; the supporting frames are fixedly arranged between the tops of the two groups of bottom plates, and the main bodies of the supporting frames are arranged into U-shaped structures; the pulley yoke A is fixedly arranged at the bottom of the top side of the support frame, and the main body of the pulley yoke A is of a U-shaped structure; the first pulley is arranged inside the pulley frame A; the fixing ring is fixedly arranged on the outer side of the top of the support frame; the fixing frame is fixedly arranged on the outer side of the supporting frame, and the fixing frame main body is arranged to be an L-shaped structure; the control module is arranged on the outer side of the fixing frame; the control switch is arranged on the outer side of the fixing frame; the driving mechanism is installed on the outer side of the supporting main body, and the connecting mechanism is arranged on the outer side of the supporting main body in a sliding mode; the bottom of the connecting mechanism is provided with a control device, and the bottom of the control device is provided with a temperature increasing device.

Further, the driving mechanism includes: the driving frame is arranged at the bottom of the top side of the supporting frame; the driving shaft is arranged in the driving frame, and the top end of the driving shaft is provided with a bevel gear; the winding reel is fixedly arranged on the outer side of the driving shaft; the bevel gear A is fixedly arranged at the shaft end of the motor device, and the motor device is electrically connected with the control module; one end of the driving rope is fixedly arranged on the outer side of the winding reel, and the other end of the driving rope is fixedly arranged in the fixing ring; the driving rope is attached to the inner side of the top of the first pulley.

Further, the connection mechanism includes: the connecting cylinders are arranged outside the two sides of the supporting frame, and the number of the connecting cylinders is two; the connecting columns are fixedly arranged between the outer sides of the two groups of connecting cylinders; the pulley yoke B is fixedly arranged on the top of the connecting column; the second pulley is arranged in the pulley frame B, and a driving rope is arranged on the inner side of the bottom of the second pulley; the ball is arranged inside the connecting cylinder, and the outer side of the ball is attached to the outer side of the support frame.

Further, the control device includes: the control frame is fixedly arranged at the bottom of the connecting column; the control shaft is arranged in the control frame; the control gear is fixedly arranged on the outer side of the control shaft; and the fixing plate is fixedly arranged at the bottom of the connecting column.

Further, the control device further includes: the sliding plate main body is arranged into a T-shaped structure, and the sliding plate is arranged in the fixed plate in a sliding manner; the control ring is fixedly arranged at the bottom of the sliding plate, and the top and the bottom of the inner side of the control ring are both provided with a gear tooth structure; the bottom of the control ring is provided with a rack, and the rack at the bottom of the control ring is meshed with the control gear; the gear-lacking mechanism is fixedly arranged at the shaft end of the motor device, and the motor device is electrically connected with the control module; the gear-lacking angle of the gear-lacking gear is set to be DEG, and the top of the inner side of the gear-lacking gear and the control ring is meshed with the gear tooth structure at the bottom.

Further, the temperature increasing device includes: the temperature increasing frame is fixedly arranged on the outer side of the control shaft; the infrared heating pipe is arranged inside the warming frame, and the infrared heating pipe is electrically connected with the control switch; the connecting hole is formed in the warming frame; the protective cover is arranged at the bottom of the warming frame, and the top of the protective cover is attached to the bottom of the warming frame; the connecting rod is arranged in the protective cover in a sliding mode, and a spring part is arranged between the rear end of the connecting rod and the interior of the protective cover; the top of the connecting rod is arranged to be of a bevel edge structure, and the connecting rod is arranged on the inner side of the connecting hole in a sliding mode.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. in the utility model, the conical gear A and the conical gear at the top end of the driving shaft are arranged, so that the effect that the driving shaft drives the winding reel to rotate to wind or loosen the driving rope is realized, and the purpose that the driving rope is matched with the second pulley to drive the infrared heating pipe to move up and down is realized; the function of adjusting the height of the infrared heating pipe along with the growth height of crops is achieved, so that a more ideal warming effect is achieved; utilize ball cooperation connecting cylinder, reached the purpose of reinforcing spliced pole slip effect, played and prevented that heating frame and infrared heating pipe from appearing rocking the effect by a wide margin because of external wind-force.

2. The utility model discloses in, through being provided with lack gear and control ring inside bottom and top teeth of a cogwheel structure, realized making the control ring drive control gear reciprocating rotation's effect through its bottom rack, reached and made the control shaft drive frame and the reciprocating rotation's of infrared heating pipe purpose of heating, played and made the crop be heated evenly, prevent that local high temperature from resulting in the crop to receive the effect of certain degree damage.

3. In the utility model, the connecting rod, the spring part and the connecting hole are arranged, so that the protective cover can be easily and conveniently mounted and dismounted, the protective cover can be conveniently cleaned, and the effect of preventing the infrared heating pipe from reducing the heating effect due to excessive dust is achieved; the practicability of the heating facility is enhanced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the connection structure of the support main body and the connection mechanism of the present invention.

Fig. 3 is a schematic view of the connection structure of the connection mechanism and the control device of the present invention.

Fig. 4 is a schematic structural view of the temperature increasing frame of the present invention.

Fig. 5 is a schematic view of the protective cover of the present invention.

Fig. 6 is a schematic diagram of the local a amplifying structure of the present invention.

Fig. 7 is a schematic diagram of the enlarged structure of part B of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a support body; 101. a base plate; 102. a support frame; 103. a pulley yoke A; 104. a first pulley; 105. a fixing ring; 106. a fixed mount; 107. a control module; 108. a control switch;

2. a drive mechanism; 201. a driving frame; 202. a drive shaft; 203. a spool; 204. a bevel gear A; 205. a drive rope;

3. a connecting mechanism; 301. a connecting cylinder; 302. connecting columns; 303. a pulley yoke B; 304. a second pulley; 305. a ball bearing;

4. a control device; 401. a control frame; 402. a control shaft; 403. a control gear; 404. a fixing plate; 405. a sliding plate; 406. a control loop; 407. a gear is missing;

5. a temperature increasing device; 501. a temperature increasing frame; 502. an infrared heating pipe; 503. connecting holes; 504. a protective cover; 505. a connecting rod.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Example (b):

as shown in figures 1 to 7:

the utility model provides a temperature-increasing facility height adjusting device, which comprises a supporting main body 1; the support body 1 comprises: the device comprises a bottom plate 101, a support frame 102, a pulley frame A103, a first pulley 104, a fixing ring 105, a fixing frame 106, a control module 107 and a control switch 108, wherein the main body of the bottom plate 101 is of a square structure, and the number of the bottom plates 101 is two; the supporting frame 102 is fixedly arranged between the tops of the two groups of bottom plates 101, and the main body of the supporting frame 102 is of a U-shaped structure; the pulley yoke A103 is fixedly arranged at the bottom of the top side of the support frame 102, and the main body of the pulley yoke A103 is of a U-shaped structure; a shaft rod is arranged in the first pulley 104, a bearing is arranged on the outer side of the shaft rod in a matching mode, and the bearing is arranged in the pulley frame A103 in a matching mode; the fixing ring 105 is fixedly arranged on the outer side of the top of the support frame 102; the fixing frame 106 is fixedly arranged at the outer side of the supporting frame 102, and the main body of the fixing frame 106 is arranged to be an L-shaped structure; the control module 107 is arranged outside the fixing frame 106; the control switch 108 is installed outside the fixing frame 106; a driving mechanism 2 is arranged on the outer side of the supporting main body 1, and a connecting mechanism 3 is arranged on the outer side of the supporting main body 1 in a sliding manner; the connection mechanism 3 includes: the connecting device comprises connecting cylinders 301, connecting columns 302, pulley frames B303, second pulleys 304 and balls 305, wherein the connecting cylinders 301 are arranged outside two sides of the supporting frame 102, and the number of the connecting cylinders 301 is two; the connecting column 302 is fixedly arranged between the outer sides of the two groups of connecting cylinders 301; the pulley yoke B303 is fixedly arranged at the top of the connecting column 302, and the main body of the pulley yoke B303 is of a U-shaped structure; a shaft rod is arranged inside the second pulley 304, a bearing is arranged outside the shaft rod in a matched mode, and the bearing is arranged inside the pulley frame B303 in a matched mode; the inner side of the bottom of the second pulley 304 is provided with a driving rope 205; the balls 305 are arranged inside the connecting cylinder 301, the balls 305 are arranged in an annular array, and the outer sides of the balls 305 are attached to the outer sides of the supporting frames 102; the concrete functions are as follows: the purpose of enhancing the sliding effect of the connecting column 302 is achieved by matching the balls 305 with the connecting cylinder 301, and the effect of preventing the heating frame 501 and the infrared heating pipe 502 from greatly shaking due to external wind power is achieved; the bottom of the connecting mechanism 3 is provided with a control device 4, and the bottom of the control device 4 is provided with a temperature increasing device 5.

As shown in fig. 1 and 6, the drive mechanism 2 includes: the driving frame 201 is installed at the bottom of the top side of the supporting frame 102, and the main body of the driving frame 201 is of a U-shaped structure; a bearing is arranged outside the driving shaft 202 in a matching way, and the bearing is arranged inside the driving frame 201 in a matching way; a bevel gear is mounted at the top end of the driving shaft 202; the winding reel 203 is fixedly arranged outside the driving shaft 202; the bevel gear A204 is fixedly arranged at the shaft end of the motor device, the motor device is electrically connected with the control module 107, and the motor device is fixedly arranged outside the driving frame 201; one end of the driving rope 205 is fixedly arranged outside the winding reel 203, and the other end of the driving rope 205 is fixedly arranged inside the fixing ring 105; the driving rope 205 is attached to the inner side of the top of the first pulley 104; the concrete functions are as follows: by arranging the bevel gear A204 and the bevel gear at the top end of the driving shaft 202, the effect that the driving shaft 202 drives the winding reel 203 to rotate so as to wind or loosen the driving rope 205 is achieved, and the purpose that the driving rope 205 is matched with the second pulley 304 to drive the infrared heating pipe 502 to move up and down is achieved; the function of adjusting the height of the infrared heating pipe 502 along with the growth height of crops is achieved, so that a more ideal temperature increasing effect is achieved.

As shown in fig. 3 and 7, the control device 4 includes: the device comprises a control frame 401, a control shaft 402, a control gear 403, a fixed plate 404, a sliding plate 405, a control ring 406 and a gear lack 407, wherein the control frame 401 is fixedly arranged at the bottom of a connecting column 302, and the number of the control frames 401 is two; a bearing is arranged outside the control shaft 402 in a matching way, and the bearing is arranged inside the control frame 401 in a matching way; the control shaft 402 is located between the two sets of control frames 401; the control gear 403 is fixedly arranged outside the control shaft 402; the fixing plate 404 is fixedly arranged at the bottom of the connecting column 302; the main body of the sliding plate 405 is arranged in a T-shaped structure, and the sliding plate 405 is arranged inside the fixed plate 404 in a sliding manner; the control ring 406 is fixedly arranged at the bottom of the sliding plate 405, and the top and the bottom of the inner side of the control ring 406 are both provided with a gear tooth structure; the rack is arranged at the bottom of the control ring 406, and the rack at the bottom of the control ring 406 is meshed with the control gear 403; the missing gear 407 is fixedly arranged at the shaft end of the motor device, the motor device is electrically connected with the control module 107, and the motor device is fixedly arranged at the bottom of the connecting column 302; the missing angle of the missing gear 407 is set to be 180 degrees, and the missing gear 407 is meshed with the gear tooth structure at the top and the bottom of the inner side of the control ring 406; the concrete functions are as follows: through being provided with scarce gear 407 and the inboard bottom of control ring 406 and top teeth of a cogwheel structure, realized making control ring 406 drive control gear 403 reciprocating rotation's effect through its bottom rack, reached and made control shaft 402 drive and heated frame 501 and infrared heating pipe 502 reciprocating rotation's purpose, played and made the crop be heated evenly, prevented that local high temperature from resulting in the crop to receive the effect of certain degree damage.

As shown in fig. 4 and 5, the temperature increasing device 5 includes: the heating device comprises a heating frame 501, an infrared heating pipe 502, a connecting hole 503, a protective cover 504 and a connecting rod 505, wherein the heating frame 501 is fixedly arranged on the outer side of the control shaft 402, and the main body of the heating frame 501 is of a conical structure; the infrared heating pipe 502 is installed inside the warming frame 501, and the infrared heating pipe 502 is electrically connected with the control switch 108; the connecting hole 503 is opened inside the warming frame 501; the protective cover 504 is arranged at the bottom of the warming frame 501, and the top of the protective cover 504 is attached to the bottom of the warming frame 501; the connecting rod 505 is arranged inside the protective cover 504 in a sliding mode, and a spring part is arranged between the rear end of the connecting rod 505 and the inside of the protective cover 504; the top of the connecting rod 505 is set to be a bevel edge structure, and the connecting rod 505 is slidably arranged inside the connecting hole 503; the concrete functions are as follows: through being provided with connecting rod 505 and spring part and connecting hole 503, realized light convenient effect to protection casing 504 installation and dismantlement, reached the convenience and carried out abluent purpose to protection casing 504, played and prevented that infrared heating pipe 502 from leading to the effect of heating decline because of the dust is too much.

In another embodiment, as shown in fig. 5, an elastic rubber member is disposed between the rear end of the connecting rod 505 and the inside of the protective cover 504, so that the protective cover 504 can be easily and conveniently mounted and dismounted under the action of the elastic rubber member, and the protective cover 504 can be conveniently cleaned.

The specific use mode and function of the embodiment are as follows:

in the utility model, when in use, the bottom plate 101 is buried in an underground designated position, so that the support frame 102 is fixed; the infrared heating tube 502 is started through the control switch 108 to heat the designated range; the control module 107 starts the motor device on the outer side of the driving frame 201 to drive the bevel gear a204 to rotate, the bevel gear a204 drives the driving shaft 202 to rotate through the bevel gear on the top end of the driving shaft 202, so that the driving shaft 202 drives the winding reel 203 to rotate, the winding reel 203 winds up the driving rope 205, the driving rope 205 drives the second pulley 304 and the pulley frame B303 to move upwards through the first pulley 104, and the connecting column 302 drives the warming frame 501 and the infrared heating pipe 502 to move upwards; the function of adjusting the height of the infrared heating pipe 502 along with the growth height of crops is achieved, so that a more ideal warming effect is achieved; so that the connecting cylinder 301 and the ball 305 slide outside the support frame 102; the purpose of enhancing the sliding effect of the connecting column 302 is achieved by matching the balls 305 with the connecting cylinder 301, and the effect of preventing the heating frame 501 and the infrared heating pipe 502 from greatly shaking due to external wind power is achieved; the control module 107 starts the motor device at the bottom of the connecting column 302 to drive the missing gear 407 to rotate, and the missing gear 407 drives the control ring 406 to slide in a reciprocating manner through the gear tooth structure at the bottom and the top of the inner side of the control ring 406, so that the control ring 406 drives the rack at the bottom to slide in a reciprocating manner; the rack at the bottom of the control ring 406 drives the control gear 403 to rotate in a reciprocating manner, so that the control shaft 402 drives the temperature increasing rack 501 and the infrared heating pipe 502 to rotate in a reciprocating manner; the crop heating device has the effects of enabling crops to be heated uniformly and preventing the crops from being damaged to a certain extent due to overhigh local temperature; the protective cover 504 is pushed upwards, the connecting rod 505 slides towards the interior of the protective cover 504 through a bevel edge structure at the top, and when the top of the protective cover 504 is attached to the bottom of the warming frame 501, the connecting rod 505 slides into the connecting hole 503 through a spring part, so that the warming frame 501 and the protective cover 504 are relatively fixed; the effect of easily and conveniently mounting and dismounting the protective cover 504 is achieved, the purpose of conveniently cleaning the protective cover 504 is achieved, and the effect of preventing the heating effect of the infrared heating pipe 502 from being reduced due to excessive dust is achieved; the practicability of the heating facility is enhanced.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A temperature-increasing facility height adjusting device, comprising: a support body (1); the support body (1) comprises: the bottom plate (101), the main body of the bottom plate (101) is arranged to be a square structure, and the number of the bottom plates (101) is two; the supporting frames (102) are fixedly arranged between the tops of the two groups of bottom plates (101), and the main bodies of the supporting frames (102) are arranged to be U-shaped structures; the pulley yoke A (103) is fixedly arranged at the bottom of the top side of the support frame (102), and the main body of the pulley yoke A (103) is of a U-shaped structure; the first pulley (104), the first pulley (104) is installed inside the pulley yoke A (103); the fixing ring (105), the fixing ring (105) is fixedly arranged on the outer side of the top of the support frame (102); the fixing frame (106), the fixing frame (106) is fixedly arranged on the outer side of the supporting frame (102), and the main body of the fixing frame (106) is arranged to be an L-shaped structure; the control module (107), the control module (107) is installed outside the fixed mount (106); the control switch (108), the control switch (108) is installed outside the fixed mount (106); a driving mechanism (2) is installed on the outer side of the supporting main body (1), and a connecting mechanism (3) is arranged on the outer side of the supporting main body (1) in a sliding manner; and a control device (4) is installed at the bottom of the connecting mechanism (3), and a temperature increasing device (5) is installed at the bottom of the control device (4).

2. A temperature-increasing facility height adjusting apparatus as claimed in claim 1, wherein: the drive mechanism (2) comprises: the driving frame (201), the driving frame (201) is installed on the top bottom of the supporting frame (102); the driving shaft (202), the driving shaft (202) is installed in the driving frame (201), and the top end of the driving shaft (202) is provided with a bevel gear; a winding reel (203), wherein the winding reel (203) is fixedly arranged outside the driving shaft (202); the bevel gear A (204) is fixedly arranged at the shaft end of the motor device, and the motor device is electrically connected with the control module (107); one end of the driving rope (205) is fixedly arranged on the outer side of the winding reel (203), and the other end of the driving rope (205) is fixedly arranged in the fixing ring (105); the driving rope (205) is attached to the inner side of the top of the first pulley (104).

3. A temperature-increasing facility height adjusting apparatus as claimed in claim 1, wherein: the connection mechanism (3) includes: the connecting cylinders (301) are mounted outside two sides of the support frame (102), and the number of the connecting cylinders (301) is two; the connecting columns (302) are fixedly arranged between the outer sides of the two groups of connecting cylinders (301); the pulley yoke B (303), the pulley yoke B (303) is fixedly arranged on the top of the connecting column (302); the second pulley (304), the second pulley (304) is installed inside the pulley frame B (303), and the inner side of the bottom of the second pulley (304) is provided with a driving rope (205); and the balls (305), wherein the balls (305) are installed in the connecting cylinder (301), and the outer side of each ball (305) is attached to the outer side of the support frame (102).

4. A temperature-increasing facility height adjusting apparatus as claimed in claim 1, wherein: the control device (4) comprises: the control frame (401), the control frame (401) is fixedly arranged at the bottom of the connecting column (302); the control shaft (402), the control shaft (402) is installed in the control frame (401); a control gear (403), wherein the control gear (403) is fixedly arranged on the outer side of the control shaft (402); and the fixing plate (404) is fixedly arranged at the bottom of the connecting column (302).

5. The height adjusting device for a temperature increasing facility according to claim 4, wherein: the control device (4) further comprises: the sliding plate (405), the sliding plate (405) main body is set to be T-shaped structure, and the sliding plate (405) is set inside the fixed plate (404) in a sliding way; the control ring (406) is fixedly arranged at the bottom of the sliding plate (405), and the top and the bottom of the inner side of the control ring (406) are both provided with a gear tooth structure; a rack is arranged at the bottom of the control ring (406), and the rack at the bottom of the control ring (406) is meshed with the control gear (403); the gear lack (407), the gear lack (407) is fixedly arranged at the shaft end of the motor device, and the motor device is electrically connected with the control module (107); the missing angle of the missing gear (407) is set to be 180 degrees, and the missing gear (407) is meshed with the gear tooth structure at the top of the inner side of the control ring (406) and the bottom.

6. A temperature-increasing facility height adjusting apparatus as claimed in claim 1, wherein: the warming device (5) includes: the temperature increasing frame (501), the temperature increasing frame (501) is fixedly arranged on the outer side of the control shaft (402); the infrared heating pipe (502), the infrared heating pipe (502) is installed inside the warming frame (501), and the infrared heating pipe (502) and the control switch (108) are electrically connected; the connecting hole (503) is formed in the warming frame (501); the protective cover (504), the protective cover (504) is mounted on the bottom of the warming frame (501), and the top of the protective cover (504) is jointed with the bottom of the warming frame (501); the connecting rod (505) is arranged in the protective cover (504) in a sliding manner, and a spring part is arranged between the rear end of the connecting rod (505) and the interior of the protective cover (504); the top of the connecting rod (505) is arranged to be a bevel edge structure, and the connecting rod (505) is arranged inside the connecting hole (503) in a sliding mode.